WO2022193152A1 - 显示面板及其制作方法以及显示装置 - Google Patents

显示面板及其制作方法以及显示装置 Download PDF

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Publication number
WO2022193152A1
WO2022193152A1 PCT/CN2021/081173 CN2021081173W WO2022193152A1 WO 2022193152 A1 WO2022193152 A1 WO 2022193152A1 CN 2021081173 W CN2021081173 W CN 2021081173W WO 2022193152 A1 WO2022193152 A1 WO 2022193152A1
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WIPO (PCT)
Prior art keywords
sub
pixel
light
pixels
emitting layer
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Ceased
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PCT/CN2021/081173
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English (en)
French (fr)
Inventor
王仓鸿
黄星维
李春阳
张锴
吴建鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Application filed by BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to PCT/CN2021/081173 priority Critical patent/WO2022193152A1/zh
Priority to CN202180000500.3A priority patent/CN115428162B/zh
Priority to EP21930748.5A priority patent/EP4135045A4/en
Priority to US17/795,978 priority patent/US20240298493A1/en
Publication of WO2022193152A1 publication Critical patent/WO2022193152A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10—Deposition of organic active material
    • H10K71/16—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
    • H10K71/166—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering using selective deposition, e.g. using a mask

Definitions

  • At least one embodiment of the present disclosure relates to a display panel, a manufacturing method thereof, and a display device.
  • high PPI Pixel Per Inch, characterizing pixel density
  • AMOLED Active-matrix organic light emitting diode, active matrix organic light emitting diode or active matrix organic light emitting diode
  • the high-density pixel arrangement increases the difficulty of the evaporation process of the pixel array, and the process limit limits the further improvement of PPI.
  • the aperture ratio will be significantly reduced, and the service life of the display panel will also be reduced.
  • At least one embodiment of the present disclosure provides a display panel
  • the display panel includes a base substrate on which a plurality of sub-pixels are disposed, and at least some of the sub-pixels of the plurality of sub-pixels include a light-emitting layer;
  • the plurality of sub-pixels At least two consecutively arranged sub-pixels in a pixel constitute a sub-pixel group, and in each sub-pixel group of at least part of the sub-pixel group, the light-emitting layer materials of the at least two consecutively arranged sub-pixels are the same and have an integrated structure;
  • Some of the sub-pixel groups include at least two sub-pixel groups that respectively emit light of different colors.
  • a plurality of pixels are disposed on the base substrate, each of the plurality of pixels includes a plurality of sub-pixels, and the plurality of sub-pixels of one of the pixels includes: a first sub-pixel, second sub-pixel and third sub-pixel.
  • the first sub-pixel includes a first light-emitting layer, wherein the first light-emitting layer emits light of a first color; the second sub-pixel includes a second light-emitting layer that emits light of a second color; the third sub-pixel includes a third light-emitting layer, the third light-emitting layer emits a third color light, the colors of the first color light, the second color light and the third color light are different from each other; at least two of the first sub-pixels are arranged continuously and form a first sub-pixel group; at least two of the second sub-pixels are continuously arranged to form a second sub-pixel group; at least two of the third sub-pixels are continuously arranged to form a third sub-pixel group; and The at least part of the sub-pixel group includes at least two of the first sub-pixel group, the second sub-pixel group, and the third sub-pixel group.
  • the first light-emitting layers of the first sub-pixels that are continuously arranged have an integrated structure;
  • the second light-emitting layers of the second sub-pixels arranged continuously have an integral structure;
  • the consecutively arranged has an integrated structure.
  • the plane of the integrated structure formed by the first light-emitting layers of the two consecutive first sub-pixels includes a hexagon, an octagon, an ellipse, a rhombus, and a shuttle; and/or, in each of the at least part of the third sub-pixel groups, the second sub-pixels of the two consecutively arranged third sub-pixels.
  • the planar shapes of the integrated structure formed by the three light-emitting layers include hexagon, octagon, ellipse, rhombus, and shuttle.
  • the first light-emitting layers of the first sub-pixels that are continuously arranged have an integrated structure;
  • the second light-emitting layers of the second sub-pixels that are continuously arranged are not of an integrated structure; and in each of at least a part of the third sub-pixel groups, the consecutively arranged
  • the third light-emitting layer of the third sub-pixel has an integrated structure.
  • the area of the light-emitting layer of the second sub-pixel is larger than that of the first sub-pixel and larger than the area of the light-emitting layer of the third sub-pixel.
  • the shorter bottom edge of the first light emitting layer of the first subpixel and the third light emission of the third subpixel adjacent to the first subpixel are close to and opposite each other.
  • the display panel provided by an embodiment of the present disclosure further includes a pixel definition layer, the pixel definition layer includes a plurality of openings and a body defining the plurality of openings, wherein the plurality of openings and the plurality of sub-pixels are one A correspondence; in each sub-pixel group of the at least part of the sub-pixel groups, the light-emitting layer of each sub-pixel includes an effective portion located within the corresponding opening of the pixel-defining layer, and is located on the main body of the pixel-defining layer the edge part.
  • the effective parts of the two first sub-pixels that are continuously arranged in each of the first sub-pixel groups are close to each other and the first distance between the opposite sides , the second distance between the sides where the effective parts of two consecutively arranged second sub-pixels in each of the second sub-pixel groups are close to each other and opposite to each other, and in each of the third sub-pixel groups
  • the effective portions of the two consecutively arranged third sub-pixels are close to each other and the third distances between the sides opposite to each other are substantially equal.
  • the first distance, the second distance, and the third distance are respectively less than or equal to 8 ⁇ m.
  • the plane shape of the effective part of the first subpixel, the plane shape of the effective part of the second subpixel, and the plane of the effective part of the third subpixel correspond to the overall plan shape of the first light-emitting layer, the overall plan shape of the second light-emitting layer, and the overall plan shape of the third light-emitting layer.
  • the plane shape of each effective part of the consecutively arranged first sub-pixels is a trapezoid, and two consecutively arranged and/or, in each of the at least part of the third sub-pixel groups, each of the consecutively arranged third sub-pixels
  • the planar shape of each effective portion is a trapezoid, and the longer bottom sides of the effective portions of the two consecutively arranged third light-emitting layers are close to and opposite to each other.
  • the plane shape of the effective portion of the first light-emitting layer, the plane shape of the effective portion of the second light-emitting layer, and the plane of the effective portion of the third light-emitting layer are all rectangles.
  • the sides of the effective portion correspond one-to-one with the sides of the outer contour of the edge portion, and the Each pair of mutually corresponding sides of the outer contour of the effective portion and the edge portion is close to and opposite to each other, and the distance between each pair of mutually corresponding sides of the outer contour of the effective portion and the edge portion is less than or equal to 9 ⁇ m.
  • the distance between the edge of the effective portion and the edge portion is The edges of the outer contour are equally spaced.
  • the pixel array includes a plurality of sub-pixel rows extending in a first direction, a plurality of first sub-pixel columns extending in a second direction, and a plurality of sub-pixel columns extending in the second direction.
  • each of the second sub-pixel columns is located between the consecutively arranged first sub-pixel columns, the second direction intersects the first direction; each of the first sub-pixel columns In a pixel column, the first sub-pixel group and the third sub-pixel group are alternately arranged; in each of the second sub-pixel columns, a plurality of the second sub-pixel groups are arranged in sequence; the second sub-pixel group The second light-emitting layer of the pixel group and the second light-emitting layer of the second sub-pixel group continuously arranged with the second sub-pixel group are not in an integrated structure.
  • the distance between the second light-emitting layer of the second sub-pixel group and the second light-emitting layer of the second sub-pixel group continuously arranged with the second sub-pixel group There is a gap; the distance between two adjacent effective parts in the second light-emitting layer of the integrated structure of the second sub-pixel group is smaller than the effective part of the two adjacent second light-emitting layers with the gap between each other. distance between parts.
  • the ratio of the area of the effective portion of each of the first sub-pixels to the area of the entire light-emitting layer of each of the first sub-pixels is 17%;
  • the ratio of the area of the effective part of the second sub-pixel to the area of the entire light-emitting layer of each of the second sub-pixels is 21%;
  • the ratio of the area of the entire light-emitting layer of the three sub-pixels is 30%.
  • One second sub-pixel in the adjacent second sub-pixel column constitutes a pixel; or, respectively located in the first sub-pixel group, the second sub-pixel group and One first subpixel, one second subpixel and one third subpixel in the third subpixel group constitute one pixel.
  • the plurality of pixels are arranged periodically in the first direction and the second direction, respectively; in one of the pixels, the first sub-pixel , the second sub-pixel and the third sub-pixel are not aligned in the second direction, and the edge of the second sub-pixel close to the first sub-pixel and the third sub-pixel is close to the edge of the second sub-pixel Edges of both the first sub-pixel and the third sub-pixel close to the second sub-pixel overlap.
  • the plurality of second sub-pixels located in the same row overlap in the second direction, and the plurality of second sub-pixels located in the same column are in the same row. There is overlap in the first direction.
  • the direction with the longest dimension of the effective light-emitting portion of at least one of the first sub-pixel, the second sub-pixel and the third sub-pixel is the same as that of the There is an included angle between the first direction or the second direction, and the angle of the included angle is greater than zero and less than or equal to 45 degrees.
  • the length of the effective portion of the second sub-pixel in the second direction is greater than the length of the effective portion of the first sub-pixel in the second direction, and is greater than the length of the effective portion of the first sub-pixel in the second direction. the length of the effective portion of the third sub-pixel in the second direction.
  • the effective portion of the first light-emitting layer of the two first sub-pixels arranged in a row is relative to the first sub-pixel extending in the first direction.
  • the first axis of symmetry is symmetric; and/or, in each of the second sub-pixel groups, the effective portions of the second light-emitting layers of the two consecutively arranged second sub-pixels are symmetrical with respect to the second luminous layer extending along the first direction and/or, in each of the third sub-pixel groups, the effective portions of the third light-emitting layers of two consecutively arranged third sub-pixels are symmetrical with respect to a third axis of symmetry extending along the first direction.
  • the planes of the first sub-pixel group, the second sub-pixel group, and the third sub-pixel group that are arranged in the first direction and located in the same line The geometric centers of the shapes lie substantially on the same line extending in the first direction.
  • the effective portion of each first sub-pixel in each of the first sub-pixel groups, includes a near edge close to the first symmetry axis and a distance away from the first sub-pixel.
  • the length of the near side of the effective portion of each first sub-pixel is greater than the length of the far side of each first sub-pixel; and/or, each of the third sub-pixel groups , the effective part of each third sub-pixel includes a near side close to the third symmetry axis and a far side far away from the third symmetry axis, and the length of the near side of the effective part of each third sub-pixel greater than the length of the far side of the effective portion of each third subpixel.
  • the distance from the near edge of the effective part of each first subpixel of each first subpixel group to the second axis of symmetry, each of the first subpixels The distance from the near edge of the effective part of each second subpixel in the two subpixel groups to the second axis of symmetry, the distance from the near edge of the effective part of each third subpixel in each third subpixel group to At least two of the distances from the third axis of symmetry are substantially equal.
  • the first direction is the width direction of each sub-pixel
  • the effective portion of each second sub-pixel has a distance in the first direction that is sequentially away from the first sub-pixel.
  • the first direction is the width direction of each sub-pixel, and the second direction is the length direction of each sub-pixel; in one of the pixels, the second direction is The aspect ratio of the effective portion of the sub-pixel is greater than the aspect ratio of the effective portion of the third sub-pixel, and is greater than the aspect ratio of the effective portion of the first sub-pixel.
  • the width of the effective portion of the second sub-pixel in the width direction is smaller than the width of the effective portion of the first sub-pixel in the width direction, and is smaller than the width of the effective portion of the third sub-pixel in the width direction.
  • the length of the second sub-pixel in the longitudinal direction is greater than the length of the first sub-pixel in the longitudinal direction, and is greater than the length of the third sub-pixel The length of the pixel in the length direction.
  • the aspect ratio of the effective part of the first sub-pixel is 1:2.5 ⁇ 1:1, and the aspect ratio of the effective part of the second sub-pixel is 9 :1 to 2:1, and the aspect ratio of the effective part of the third sub-pixel is 3:1 to 1:1.
  • the plane shape of the effective portion of the second light-emitting layer is a polygon
  • the plane shape of the effective portion of the second light-emitting layer includes a first parallel side and a second parallel side
  • the first parallel side is parallel to at least one side of the effective part of the first light-emitting layer adjacent to the second light-emitting layer
  • the second parallel side is parallel to the third light-emitting layer adjacent to the second light-emitting layer At least one edge of the active portion of the layer.
  • the effective portion of the second light-emitting layer has an axis of symmetry that has the same direction as the effective portion of the first light-emitting layer and the third light-emitting layer, or, the The effective portion of the second light-emitting layer does not have an axis of symmetry in the same direction as the effective portion of the first light-emitting layer and the third light-emitting layer.
  • the light-emitting layer of the second sub-pixel group in the first direction, is respectively adjacent to the first sub-pixel group and the third sub-pixel group.
  • the light-emitting layers of the pixel groups are in contact; in the second direction, the light-emitting layers of the first sub-pixel group are in contact with the light-emitting layers of the third sub-pixel group adjacent thereto.
  • the plane shape of the integrated structure formed by the second light-emitting layers of the two second sub-pixels arranged in a row is in the
  • the first direction has a first size, a second size and a third size, the first size, the second size and the third size are arranged in sequence in the second direction, and the first size One size is larger than the second size, the third size is larger than the second size, and the planar shape of the integrated structure formed by the second light-emitting layers of the two consecutively arranged second sub-pixels is in the first
  • the maximum length in the two directions is greater than the maximum width in the first direction.
  • At least one embodiment of the present disclosure further provides a display device, where the display device includes any one of the display panels provided in the embodiments of the present disclosure.
  • At least one embodiment of the present disclosure further provides a method for fabricating a display panel, the method for fabricating a display panel includes: providing a base substrate; and forming a plurality of sub-pixels on the base substrate, at least part of the plurality of sub-pixels
  • the sub-pixels include a light-emitting layer, wherein the light-emitting layers of the plurality of sub-pixels are formed by a patterning process using a mask, and the mask includes a plurality of mask openings; and at least two sub-pixels arranged continuously in the plurality of sub-pixels constitute one sub-pixel A sub-pixel group, in the patterning process, at least part of the light-emitting layer of each sub-pixel group in the sub-pixel group is formed using the same mask opening among the plurality of mask openings and has the same material;
  • the at least part of the sub-pixel groups includes at least two sub-pixel groups that respectively emit light of different colors.
  • FIG. 1A is a schematic structural diagram of a display panel according to an embodiment of the disclosure.
  • FIG. 1B is a comparison diagram of the aperture ratio and pixel density of the display panel shown in FIG. 1A and the aperture ratio and pixel density of a conventional display panel;
  • FIG. 2A is a schematic structural diagram of another display panel according to an embodiment of the disclosure.
  • FIG. 2B is a schematic plan view 1 of an integrated structure formed by the first light-emitting layers of two first sub-pixels arranged in a row;
  • FIG. 2C is a schematic diagram 2 of the planar shape of the integrated structure formed by the first light-emitting layers of the two first sub-pixels arranged in a row;
  • FIG. 2D is a schematic diagram 3 of the planar shape of the integrated structure formed by the first light-emitting layers of the two first sub-pixels arranged in a row;
  • FIG. 2E is a schematic diagram 4 of the planar shape of the integrated structure formed by the first light-emitting layers of the two first sub-pixels arranged in a row;
  • FIG. 2F is a schematic plan view of an integrated structure composed of second light-emitting layers of two second sub-pixels arranged in a row;
  • FIG. 3A is a schematic structural diagram of another display panel according to an embodiment of the present disclosure.
  • 3B is a comparison diagram of the aperture ratio and pixel density of the display panel shown in FIG. 3A and the aperture ratio and pixel density of a conventional display panel;
  • FIG. 4A is a schematic structural diagram of another display panel provided by an embodiment of the present disclosure.
  • FIG. 4B is a comparison diagram of the aperture ratio and pixel density of the display panel shown in FIG. 4A and the aperture ratio and pixel density of a conventional display panel;
  • FIG. 5 is a schematic structural diagram of still another display panel according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a display panel with a pixel density different from that in FIG. 5 according to an embodiment of the present disclosure
  • FIG. 7A is a schematic diagram 1 of the position of the anode hole of the sub-pixel of one pixel
  • FIG. 7B is a schematic diagram 2 of the position of the anode hole of the sub-pixel of one pixel
  • FIG. 8 is a schematic diagram of a display device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a mask used in a manufacturing method of a display panel according to an embodiment of the present disclosure.
  • 10A is a schematic diagram of a film layer structure of an exemplary pixel array
  • FIG. 10B is a schematic diagram of a film layer structure of another exemplary pixel array.
  • At least one embodiment of the present disclosure provides a display panel
  • the display panel includes a base substrate on which a plurality of sub-pixels are disposed, and at least some of the sub-pixels of the plurality of sub-pixels include a light-emitting layer;
  • the plurality of sub-pixels At least two consecutively arranged sub-pixels in a pixel constitute a sub-pixel group, and in each sub-pixel group of at least part of the sub-pixel group, the light-emitting layer materials of the at least two consecutively arranged sub-pixels are the same and have an integrated structure;
  • Some of the sub-pixel groups include at least two sub-pixel groups that respectively emit light of different colors.
  • the display panel can reduce the area of the non-light-emitting area, and the PPI and aperture ratio of the display panel are improved.
  • FIG. 1A is a schematic structural diagram of a display panel according to an embodiment of the present disclosure
  • FIG. 1B is the difference between the aperture ratio and pixel density of the display panel shown in FIG. 1A and the aperture ratio and pixel density of a normal display panel. Comparison chart. As shown in FIG. 1A
  • a display panel 10 provided by at least one embodiment of the present disclosure includes a base substrate 1 on which a plurality of pixels 11 arranged in an array are arranged; each of the plurality of pixels 11 includes a plurality of sub-substrates Pixels 11/12/13, for example, each of the plurality of sub-pixels 11/12/13 includes a light-emitting element, and the light-emitting element includes a light-emitting layer 21/22/23; at least two sub-pixels arranged consecutively in the plurality of sub-pixels 11/12/13 A sub-pixel group 31/32/33 is formed, and in each sub-pixel group of at least part of the sub-pixel groups 31/32/33, the materials of the light-emitting layers of at least two consecutive sub-pixels are the same, such as emitting light of the same color, And the light-emitting layers of at least two consecutively arranged sub-pixels have an integrated structure.
  • the light-emitting layer of the integrated structure can be formed through the same opening of the mask.
  • a patterning process such as an evaporation process
  • the interval does not exist between the light-emitting layers of the at least two consecutive sub-pixels, so that the area of the non-light-emitting region can be reduced, which is beneficial to improve the PPI and aperture ratio of the display panel.
  • the light emitting element is an electroluminescent device, such as an organic light emitting diode (OLED) device.
  • OLED organic light emitting diode
  • each of the plurality of pixels includes three sub-pixels, and two sub-pixels arranged in a row form a sub-pixel group as an example.
  • the plurality of sub-pixels included in each of the plurality of pixels include: a first sub-pixel 11 , a second sub-pixel 12 and a third sub-pixel 13 .
  • the first sub-pixel 11 includes a first light-emitting layer 21 that emits light of a first color; the second sub-pixel 12 includes a second light-emitting layer 22 that emits light of a second color; the third sub-pixel 13
  • the third light emitting layer 23 is included, and the third light emitting layer 23 emits light of a third color, and the colors of the first color light, the second color light and the third color light are different from each other.
  • the first light-emitting layer emits red light
  • the second light-emitting layer emits green light
  • the third light-emitting layer emits blue light.
  • two first sub-pixels 11 are continuously arranged and form a first sub-pixel group 31; two second sub-pixels 12 are continuously arranged and form a second sub-pixel group 32; two third sub-pixels 13 are continuously arranged and formed A third sub-pixel group 33 is formed; and the above-mentioned at least part of the sub-pixel group includes at least one of the first sub-pixel group 31, the second sub-pixel group 32 and the third sub-pixel group 33, that is, to a certain extent The above technical effect is achieved; or, the at least part of the sub-pixel group includes at least two of the first sub-pixel group 31, the second sub-pixel group 32 and the third sub-pixel group 33, that is, the at least part of the sub-pixel group includes At least two sub-pixel groups respectively emitting light of different colors.
  • the first light-emitting layers 21 of the consecutively arranged first sub-pixels 11 have an integrated structure, such as a first
  • the materials of the first light-emitting layers 21 of the two adjacent first sub-pixels 11 in the sub-pixel group 31 are the same without any gaps and seams between each other, and are the same openings that are masked in the same patterning process using the same material.
  • the second light-emitting layers 22 of the second sub-pixels 12 arranged in a row are integrated into a single structure, such as one
  • the materials of the second light-emitting layers 22 of the two adjacent second sub-pixels 12 in the second sub-pixel group 32 are the same without any gaps and seams, and are masked using the same material in the same patterning process.
  • the third light-emitting layers of the third sub-pixels 14 arranged in series have an integrated structure
  • the materials of the third light-emitting layers 23 of two adjacent third sub-pixels 13 in a third sub-pixel group 33 are the same and there is no gap or seam between them.
  • the same opening of the mask is formed, for example, by deposition or evaporation through the same opening of the mask. In this way, the area of the non-light-emitting region can be reduced for all three sub-pixels, and the effect of improving the PPI and aperture ratio of the display panel can be better achieved.
  • the total aperture ratio of the pixel can be increased by 70%, and the corresponding service life can be increased by more than 13%; under the same aperture ratio, the PPI can be increased by 50%.
  • the light-emitting colors of the light-emitting layers of the first sub-pixel, the second sub-pixel and the third sub-pixel are limited to the above-mentioned red, green and blue, and a pixel is not limited to including the first sub-pixel, the second sub-pixel and the second sub-pixel.
  • the three sub-pixels, the pixel and the third sub-pixel may also include, for example, a fourth sub-pixel that emits white light, which is not limited in the present disclosure.
  • the planar shape of the integrated structure formed by the first light-emitting layers 21 of the two first sub-pixels 13 arranged in a row is a hexagon,
  • it can also be an octagon such as shown in FIG. 2B , an ellipse such as shown in FIG. 2C , a rhombus such as shown in FIG. 2D , and a shuttle such as shown in FIG. 2E .
  • the planar shape of the integrated structure formed by the third light-emitting layers 23 of the two third sub-pixels 13 is a hexagon.
  • it can also be an octagon, an ellipse, a diamond, a shuttle
  • At least one of the shapes, the octagon, ellipse, rhombus, and shuttle can refer to the shapes shown in FIGS. 2B-2E.
  • the plane shape of the integrated structure composed of the first light-emitting layers 21 of the two consecutive first sub-pixels 13 and the plane of the integrated structure composed of the third light-emitting layers 23 of the two consecutive third sub-pixels 13 The shape is not limited to the types listed above, and can be designed according to specific needs.
  • the planar shape of the integrated structure formed by the second light-emitting layers 22 of two second sub-pixels 12 arranged in a row has a first size in the first direction.
  • the planar shape of the integrated structure formed by the second light-emitting layers 22 of the two second sub-pixels 12 arranged in a row has a maximum length in the second direction greater than its maximum length in the second direction. Maximum width in the first direction.
  • the first dimension w2a is equal to the third dimension w2c.
  • the planar shape of the integrated structure formed by the second light-emitting layers 22 of the two second sub-pixels 12 arranged in a row may be a dumbbell shape as shown in FIG. 2F .
  • the planar shape of the first light-emitting layers 21 is a trapezoid, and the longer bottom sides of the consecutively arranged first light-emitting layers 21 are close to and opposite to each other.
  • the longer bottom sides 31a and 31b are close to each other and are opposite, for example, they overlap; and/or, the planar shape of the third light-emitting layer 23 is a trapezoid, and the longer bottom sides 33a and 33b of the third light-emitting layers 23 arranged in a row are mutually close and relatively eg both overlap.
  • the shorter bottom side 31c of the first light-emitting layer 21 of the first sub-pixel 11 and the shorter bottom side 33c of the third light-emitting layer 23 of the third sub-pixel 13 adjacent to the first sub-pixel 11 are mutually Adjacent and opposite, for example, the shorter bottom edge 31c of the first light emitting layer 21 overlaps the shorter bottom edge 33c and the shorter bottom edge 33c.
  • it is beneficial to form a relatively regular edge so that the second sub-pixel filling the two columns of sub-pixels is arranged between the adjacent two columns of sub-pixels that both include the first sub-pixel and the third sub-pixel, so as to make full use of the two columns of sub-pixels.
  • the relatively regular gap between the pixels reduces the area of the non-light-emitting area, which is beneficial to improve the PPI and aperture ratio of the display panel.
  • the effect of improving PPI and aperture ratio that can be achieved by the embodiment shown in FIG. 1A that satisfies this feature is shown in FIG. 1B .
  • the total aperture ratio of the pixel can be increased by 70%, and the corresponding service life can be increased by more than 13%. ;
  • the PPI can be increased by 50%.
  • the display panel 10 further includes a pixel definition layer (not shown in the figure, for reference to the design of the pixel definition layer in the conventional technology in the art), the pixel definition layer includes a plurality of openings and a body defining the plurality of openings, and the pixel definition layer
  • the plurality of openings correspond to a plurality of sub-pixels one-to-one; in each sub-pixel group of the above-mentioned at least part of the sub-pixel group (that is, each pixel group includes an integrated structure composed of light-emitting layers of at least two consecutive sub-pixels), each The light-emitting layer of each sub-pixel includes an active portion located within the corresponding opening of the pixel-defining layer, and an edge portion located on the main body of the pixel-defining layer.
  • the orthographic projection of the opening corresponding to each sub-pixel of the mask on the base substrate 1 and the positive projection of the whole composed of the effective part and the edge part of the sub-pixel on the base substrate 1 Projections overlap.
  • the light-emitting layer 21 of the first sub-pixel 11 includes an effective portion 21a located in the corresponding opening of the pixel-defining layer and an edge portion 21b located on the main body of the pixel-defining layer;
  • the light-emitting layer 22 of the second sub-pixel 12 includes The effective portion 22a in the opening of the pixel definition layer and the edge portion 22b on the main body of the pixel definition layer;
  • the light emitting layer 23 of the third sub-pixel 13 includes the effective portion located in the corresponding opening of the pixel definition layer. 23a and an edge portion 23b on the body of the pixel defining layer.
  • each second sub-pixel For example, in each of at least a part of the first sub-pixel groups 31, the first distance h1 between the sides where the effective parts 21a of the two consecutively arranged first sub-pixels 11 are close to and opposite to each other, each second sub-pixel The second distance h2 between the effective portions 22a of the two consecutively arranged second sub-pixels 12 in the group 32 are close to each other and opposite to each other, and in each of at least part of the third sub-pixel group 33, the consecutively arranged The effective portions 23a of the two third sub-pixels 13 are close to each other and the third distance h3 between the opposite sides is substantially equal, which is beneficial to the balance of the display colors of the entire display panel 10 .
  • the first distance h1 , the second distance h2 and the third distance h3 are respectively less than or equal to 8 ⁇ m.
  • the first distance h1 , the second distance h2 and the third distance h3 are relatively small, which can improve the arrangement density of sub-pixels, which is beneficial to improve the PPI of the display panel 10 .
  • the planar shape of the effective portion 21 a of the first sub-pixel 11 , the planar shape of the effective portion 22 a of the second sub-pixel 12 , and the planar shape of the effective portion 23 a of the third sub-pixel 13 The overall plan shape of the first light emitting layer 21 , the overall plan shape of the second light emitting layer 22 , and the overall plan shape of the third light emitting layer 23 are consistent with each other, which is beneficial for each sub-pixel of the entire display panel 10 .
  • the uniformity of the arrangement of the light-emitting layer reduces the difficulty of fabrication.
  • each of the first sub-pixel groups 31 the plane shape of each effective portion 21 a of the first sub-pixels 11 arranged in a row is a trapezoid, and two consecutively arranged first sub-pixels 11 have a trapezoid shape.
  • the longer bottom sides of the effective portions 21a of a light-emitting layer 21 are close to and opposite to each other; and/or, in each of the third sub-pixel groups 33, each effective portion 23a of the third sub-pixels 13 arranged in a row
  • the planar shape is trapezoidal, and the longer bottom sides of the effective portions 23a of the third light-emitting layers 23 are arranged two in a row close to and opposite to each other.
  • a display panel that satisfies this characteristic has a better effect of improving PPI or aperture ratio.
  • the effect of improving PPI and aperture ratio that can be achieved by the embodiment shown in FIG. 1A that satisfies this feature is shown in FIG. 1B .
  • the total aperture ratio of the pixel can be increased by 70%, and the corresponding service life can be increased by more than 13%. ;
  • the PPI can be increased by 50%.
  • each sub-pixel group of the at least part of the sub-pixel groups that is, each pixel group includes an integrated structure composed of light-emitting layers of at least two sub-pixels arranged in a row
  • the edges of the edge portion correspond one-to-one with the edges of the outer contour of the edge portion, each pair of mutually corresponding edges of the effective portion and the outer contour of the edge portion are close to and opposite to each other, and the effective portion and the edge portion
  • the distances S1, S2, and S3 between each pair of corresponding sides of the outer contour are less than or equal to 9 ⁇ m, compared to the consecutively arranged first sub-pixel group 31 , second sub-pixel group 32 and third sub-pixel group 33 respectively.
  • the two sub-pixels are not of a unitary structure (eg, there is a space or gap)
  • the space is reduced in this embodiment.
  • the distances between the edges of the effective parts 21a, 22a, and 23a to the edges of the outer contour of the corresponding edge parts are equal, that is, The distances S1, S2, and S3 are equal; of course, in some other embodiments, the distances S1, S2, and S3 may also be unequal.
  • the spacings S1, S2, and S3 are all 8.65 ⁇ m.
  • the adjacent and parallel sides of the effective parts of the adjacent sub-pixels of different colors in FIG. 1A are close to each other.
  • the distances S5, S6, and S7 are all 17.3 ⁇ m.
  • the pixel array of the display panel 10 includes a plurality of sub-pixel rows extending in a first direction, a plurality of first sub-pixel columns extending in a second direction, and a plurality of second sub-pixel columns extending in the second direction Sub-pixel columns, each of the second sub-pixel columns is located between the consecutively arranged first sub-pixel columns; the second direction intersects the first direction, for example, in the embodiment shown in FIG. 1A, the second direction perpendicular to the first direction.
  • the first sub-pixel group 31 and the third sub-pixel group 33 are alternately arranged; in each column of at least part of the second sub-pixel column, a plurality of second sub-pixel groups 32 are arranged in sequence, for example
  • the second sub-pixel 12 does not exist in the first sub-pixel column and the third sub-pixel column; the second light-emitting layer 22 of the second sub-pixel group 32 and the second sub-pixel group consecutively arranged with the second sub-pixel group 32
  • the second light-emitting layer is not an integral structure. Due to process reasons, in this embodiment, the light emitting layers of the two consecutively arranged second sub-pixel groups 32 are formed through two different openings of the mask, so the two consecutively arranged second sub-pixel groups 32 have There are spaces between the light emitting layers.
  • the light-emitting layer of the second sub-pixel group 32 is in contact with the light-emitting layers of the adjacent first sub-pixel group 31 and the third sub-pixel group 33 respectively;
  • the light-emitting layer of the sub-pixel group 31 is in contact with the light-emitting layer of the third sub-pixel group 33 adjacent thereto, so that the arrangement of each sub-pixel is compact, which is beneficial to improve the PPI and aperture ratio of the display panel 10 .
  • the integrated structure of the second light-emitting layers 22 of at least two consecutive sub-pixels 12 in at least part of the second sub-pixel group 32 can reduce the area of the non-light-emitting portion in the second direction, thereby facilitating improved display Aperture ratio and PPI of panel 10 .
  • the ratio of the area of the effective portion 21 a of each of the first sub-pixels 11 to the area of the entire light-emitting layer 21 of each of the first sub-pixels 11 is 17%;
  • the ratio of the area of the effective portion 22a to the area of the entire light-emitting layer 22 of each of the second sub-pixels 12 is 21%;
  • the area of the effective portion 23a of each of the third sub-pixels 13 is The ratio of the area of the entire light-emitting layer 23 of the sub-pixel 13 is 30%.
  • the third sub-pixel 13 is a blue sub-pixel.
  • the third sub-pixel 13 is The ratio of the area of the effective portion 23a to the area of the entire light emitting layer 23 of each of the third subpixels 13 is larger than that of the first subpixel (red) and the second subpixel (green).
  • a pixel arrangement method makes the pixel arrangement more compact, which is more conducive to improving the aperture ratio and PPI of the display panel 10;
  • the length is equal to the length in the second direction, for example, it is closer to a square, which is beneficial to improve the uniformity of the color display of the entire display panel 10, thereby improving the display effect.
  • the area where one pixel 101 is located is a square, so as to improve the aperture ratio and PPI of the display panel 10 and at the same time obtain a very uniform color display effect.
  • the length of the second sub-pixel 12 in the second direction is greater than the length of the first sub-pixel 11 in the second direction, and is greater than the length of the third sub-pixel 13 in the second direction, so that a second
  • the length of the sub-pixel 12 is substantially equal to the sum of the lengths of a first sub-pixel 11 and a third sub-pixel 13 arranged continuously in the second direction, so that the shape of one pixel 101 is regular and the pixel arrangement is more compact, thereby It is beneficial to improve the aperture ratio and PPI of the display panel 10 and the uniformity of color display.
  • the design of the driving circuit of each sub-pixel may refer to conventional techniques in the art.
  • each sub-pixel in a pixel is independently driven by its own driving circuit.
  • the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 constitute a pixel 101, and the pixel circuits corresponding to the three sub-pixels are arranged in sequence along the first direction.
  • the sub-pixel 11 is a red sub-pixel
  • the second sub-pixel 12 is a green sub-pixel
  • the third sub-pixel 13 is a blue sub-pixel.
  • the pixel circuits of these three sub-pixels are arranged in the order of red, blue, and green, or according to Blue, red, and green are arranged in order.
  • the pixel circuits of the three sub-pixels are respectively connected to different data lines.
  • the pixel circuit includes, for example, an active layer, a gate insulating layer, a gate electrode layer, an interlayer insulating layer, a source-drain metal layer, a flat layer, etc., and the anode of the sub-pixel is connected to the pixel circuit through a via hole.
  • a via hole As shown in FIG. 7A and FIG. 7B , for the three sub-pixels in one pixel 101, their anode vias V1, V2, V3 are roughly distributed on a straight line along the first direction.
  • the pixel 11 and the third sub-pixel 13 for example, in some embodiments, as shown in FIG.
  • the effective parts of the first sub-pixel 11 and the third sub-pixel 13 are located on the same side of the line where the anode vias V1, V2, V3 are located Alternatively, in other embodiments, the effective portions of the first sub-pixel 11 and the third sub-pixel 13 are located on different sides of the straight line where the anode vias V1, V2, and V3 are located.
  • the first sub-pixel group 31 , the second sub-pixel group 32 and the third sub-pixel group 32 and the third sub-pixel group 32 and 32 which are continuously arranged in the first direction are respectively located
  • One first subpixel 11 , one second subpixel 12 and one third subpixel 13 in the pixel 33 constitute one pixel 102 .
  • the arrangement of the pixels in the display panel provided by the embodiments of the present disclosure is not limited to the above-mentioned manners, which are not limited in the present disclosure.
  • each first sub-pixel group 31 the effective portions 21 a of the first light-emitting layers 21 of the two consecutive first sub-pixels 11 are symmetrical with respect to the first symmetric extending in the first direction.
  • each second sub-pixel group 32 the effective portion 22a of the second light-emitting layer 22 of two consecutively arranged second sub-pixels 12 is relatively symmetrical along the first
  • the second axis of symmetry C2 (as shown by the dotted line) extending in the direction is symmetrical; and/or, in each third subpixel group 33, the effective portion of the third light emitting layer 23 of the two third subpixels 13 arranged in a row 23a is symmetrical with respect to a third axis of symmetry C3 (shown in phantom) extending in the first direction.
  • the geometric centers O1 , O2 and O3 of the planar shapes of the first sub-pixel group 31 , the second sub-pixel group 32 and the third sub-pixel group 33 arranged in the first direction and located in the same row are substantially on the same straight line extending in the first direction.
  • the geometric centers of the consecutively arranged first sub-pixels 11, second sub-pixels 12 and third sub-pixels 13 are basically located on the same straight line extending along the first direction, for example, all the first sub-pixels 11 in the same row are located in the same line.
  • the geometric centers of the second sub-pixel 12 and the third sub-pixel 13 are all substantially located on the same straight line extending along the first direction.
  • the first symmetry axis C1 and the second symmetry axis C2 Coincides with the third axis of symmetry C3.
  • the effective portion 22a of the second light-emitting layer 22 has an axis of symmetry having the same direction as the effective portion of the first light-emitting layer 21 and the third light-emitting layer 23, or the effective portion 22a of the second light-emitting layer 22 does not have the same direction as the light-emitting layer 22.
  • each first sub-pixel group 31 the effective portion 21a of each first sub-pixel 11 includes a near side E1 close to the first symmetry axis C1 and a far side E2 far away from the first symmetry axis C1, each first The length of the near side E1 of the effective portion 21a of the sub-pixel 11 is greater than the length of the far side E2 of each first sub-pixel 11; and/or, in each second sub-pixel group 32, the length of each second sub-pixel 12
  • the effective portion 22a includes a near side F1 close to the second axis of symmetry C2 and a far side F2 away from the second axis of symmetry C2, and the length of the near side F1 of the effective portion 22a of each second sub-pixel 12 is greater than that of each second sub-pixel and/or, in each third subpixel group 31, the effective portion 23a of each third subpixel 13 includes a near side G1 close to the third axis of symmetry C3 and a distance away from On the far side G2 of the third symmetry
  • the plan shape of the effective portion 21a of the first sub-pixel 11, the plan shape of the effective portion 22a of the second sub-pixel 12, and the plan shape of the effective portion 23a of the third sub-pixel 13 are consistent, which is beneficial to the uniformity of the light-emitting layer arrangement of each sub-pixel of the entire display panel 10 and reduces the manufacturing difficulty.
  • the distance from the near side G1 of the effective portion 23a of each third subpixel 13 of each third subpixel group 33 to the third symmetry axis C3 three At least two of them are substantially equal, for example, all three are substantially equal.
  • the shapes of the first sub-pixel group 31 , the second sub-pixel group 32 and the third sub-pixel group 33 are symmetrical, the two first sub-pixels 11 consecutively arranged in each first sub-pixel group 31
  • the distance h3 between the near sides G1 of the effective portions 23 a of the two third sub-pixels 13 consecutively arranged in each third sub-pixel group 33 is substantially equal, which is beneficial to the balance of display colors of the entire display panel 10 .
  • the first direction is the width direction of each sub-pixel
  • the second direction is the length direction of each sub-pixel
  • the aspect ratio of the effective part of the second sub-pixel 12 is greater than the effective part of the third sub-pixel 13 .
  • the aspect ratio of the portion is greater than the aspect ratio of the effective portion of the first sub-pixel 11 .
  • the aspect ratio of the effective portion 21a of the first subpixel 11 is 1:2.5 ⁇ 1:1
  • the aspect ratio of the effective portion 22a of the second subpixel 12 is 9:1 ⁇ 2:1
  • the aspect ratio of the third subpixel 13 is 9:1 ⁇ 2:1.
  • the aspect ratio of the effective portion 23a is 3:1 to 1:1.
  • the width w2 of the second light-emitting layer 22 of one second sub-pixel 12 in the width direction is greater than or equal to the width w1 of the second light-emitting layer 21 of the first sub-pixel 11 in the width direction, and is greater than or equal to one third sub-pixel The width w3 of the third light-emitting layer 23 of 13 in the width direction.
  • the width w1 of the first light-emitting layer 21 of the first sub-pixel 11, the width w2a of the second light-emitting layer 22 of the second sub-pixel 12, and the width w3 of the third light-emitting layer 23 of the third sub-pixel 13 refer to the first The maximum width of the sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 in the width direction.
  • the ratio of the width w2b of a second sub-pixel 12 in the width direction to the width w1 of a first sub-pixel 11 is 1:1 to 1:2; the width w2b of a second sub-pixel 12 is equal to The ratio of the width w1 of one third sub-pixel 13 is 1:1 ⁇ 1:2. If this ratio is too large, the display color will be unbalanced, and a better color display effect can be obtained under this ratio range.
  • the planar shape of the effective portion 21a of the first subpixel 11, the planar shape of the effective portion 22a of the second subpixel 12, and the planar shape of the effective portion 23a of the third subpixel 13 are respectively the same as those of the first subpixel 11.
  • the plane shape of the second light-emitting layer 21, the plane shape of the second light-emitting layer 22 of the second sub-pixel 12 and the plane shape of the third light-emitting layer 23 of the third sub-pixel 13 are the same.
  • the ratio of the width w2b of the effective part 22a in the width direction to the width w1 of the effective part 21a of a first sub-pixel 11 is 1:1-1:2; the width w2b of the effective part 22a of a second sub-pixel 12
  • the ratio of the width w3 of the effective portion 23a of the third sub-pixel 13 is 1:1 ⁇ 1:2.
  • the length l2 of the second sub-pixel group 32 including the second light-emitting layer of the integrated structure in the longitudinal direction is greater than the length l1 of the first sub-pixel group 31 including the first light-emitting layer of the integrated structure in the longitudinal direction, and greater than the length l3 of the first sub-pixel group 31 including the third light-emitting layer of the integrated structure in the longitudinal direction.
  • the length l1 is 39.7 ⁇ m
  • the length l2 is 95.4 ⁇ m
  • the length l3 is 70.7 ⁇ m.
  • a plurality of pixels 101 including the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are arranged periodically in the first direction and the second direction respectively; in one pixel 101, The first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are not aligned in the second direction, and the edges of the second sub-pixel 12 close to the first sub-pixel 11 and the third sub-pixel 13 are not aligned with the first sub-pixel 12.
  • both the pixel 11 and the third sub-pixel 13 close to the second sub-pixel 12 overlap, that is, the second sub-pixel 12 and both the first sub-pixel 11 and the third sub-pixel 13
  • the contact, that is, the second subpixel 12 overlaps both the first subpixel 11 and the third subpixel 13 in the first direction to take full advantage of the gap between the two columns of subpixels, where the gap Filling the middle with sub-pixels reduces the area of the non-light-emitting area, which is beneficial to improve the PPI and aperture ratio of the display panel and maintain good color accuracy.
  • the plurality of second sub-pixels 12 located in the same row overlap in the second direction
  • the plurality of second sub-pixels 12 located in the same column overlap in the first direction
  • the plane shape of the effective portion 22a of the second light-emitting layer 22 is a polygon, and the polygon may include rounded corners or arc-shaped sides, which is not limited by us.
  • the direction in which the size of the effective light-emitting portion of at least one of the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 is the longest has an included angle with the first direction or the second direction.
  • the angle of the angle is greater than zero and less than or equal to 45 degrees.
  • the included angle may be equal to zero degrees. As shown in FIG.
  • the direction D1 with the longest dimension of the effective light-emitting portion 21 a of the first sub-pixel 11 is the same as the first direction, that is, the included angle with the first direction is zero degrees; the effective light-emitting portion 22 a of the second sub-pixel 12
  • the angle ⁇ 2 between the longest direction D2 and the second direction is less than 45 degrees; the angle ⁇ 3 between the longest direction D3 and the second direction of the effective light-emitting portion 23a of the third sub-pixel 13 is less than 45 degrees.
  • the planar shape of the effective portion 22 a of the second light-emitting layer 22 includes a first parallel side H1 and a second parallel side H2 , and the first parallel side H1 is parallel to the first light-emitting layer 21 adjacent to the second light-emitting layer 22 .
  • At least one side of the effective portion 21 a is, for example, side J1
  • the second parallel side H2 is parallel to at least one side of the effective portion 23 a of the third light-emitting layer 23 adjacent to the second light-emitting layer 22 , for example, side J2 .
  • the length of the effective portion 22a of the second subpixel 12 in the second direction is greater than the length of the effective portion 21a of the first subpixel 11 in the second direction, and is greater than the length of the effective portion 23a of the third subpixel 13 in the second direction length in the direction.
  • the length of the second sub-pixel 12 in the second direction is greater than the length of the first sub-pixel 11 in the second direction, and is greater than the length of the third sub-pixel 13 in the second direction.
  • the distance S5 in the above-mentioned FIG. 1A is equal to the distance between the first parallel side H1 and the side J1, and the distance S6 is equal to the second parallel side distance between edges H2.
  • planar shape of the effective portion 22a of the second light-emitting layer also includes a third parallel side, and the third parallel side is directly adjacent to the second light-emitting layer of the first light-emitting layer, the second light-emitting layer or the third light-emitting layer. At least one edge in the active portion is parallel.
  • planar shape of the effective portion 22a of the second light-emitting layer further includes a fourth parallel side, and the third parallel side is directly adjacent to the second light-emitting layer of the first light-emitting layer, the second light-emitting layer or the third light-emitting layer. At least one side of the effective portion is parallel, and at this time, the planar shape of the effective portion 22a of the second light-emitting layer is a quadrangle.
  • planar shape of the effective portion 22a of the second light-emitting layer also includes a fifth parallel side, and the third parallel side is directly adjacent to the second light-emitting layer of the first light-emitting layer, the second light-emitting layer or the third light-emitting layer. At least one side of the effective portion is parallel, and at this time, the planar shape of the effective portion 22a of the second light-emitting layer is a pentagon.
  • the plane shape of the effective portion 22a of the second light-emitting layer also includes a sixth parallel side, and the third parallel side is directly adjacent to the second light-emitting layer of the first light-emitting layer, the second light-emitting layer or the third light-emitting layer. At least one side of the effective portion is parallel, and at this time, the planar shape of the effective portion 22a of the second light-emitting layer is a hexagon, and so on.
  • the directly adjacent first light-emitting layer, second light-emitting layer or third light-emitting layer means that the light-emitting layer is connected to the effective part 22a of the second light-emitting layer, and at least one connection line does not pass through other light-emitting layers.
  • the plane shape of the second light-emitting layer 21 is symmetrical with respect to the symmetry axis extending along the second direction, so that the arrangement of the light-emitting layers of the sub-pixels of the display panel 10 is symmetrical, thereby The uniformity of the display effect of the display panel 10 is improved.
  • the planar shape of the second light emitting layer 22 does not have an axis of symmetry extending along the second direction. The present disclosure does not limit this.
  • the second light-emitting layer 22 is located between the first light-emitting layer 21 and the third light-emitting layer 23 in the two adjacent first sub-pixel columns, and the plane shape of the second light-emitting layer 22 is The space between the first light-emitting layer 21 and the second light-emitting layer 23 in the adjacent two first sub-pixel columns is filled. That is, the continuously arranged first light-emitting layer 21 and the second light-emitting layer 22 have complementary shapes to reduce the area of the non-light-emitting area and improve the aperture ratio and PPI of the display panel.
  • the plane shape of the integrated structure formed by the second light-emitting layers 22 of the two second sub-pixels 12 arranged in a row is basically a dumbbell shape, and the dumbbell shape is in the first
  • the maximum length in the two directions is greater than the maximum width in the first direction.
  • the area of the light emitting layer of the second subpixel 12 is larger than that of the first subpixel 11 and larger than that of the third subpixel 13 .
  • the first light-emitting layer 21 of the first sub-pixel 11 , the second light-emitting layer 22 of the second sub-pixel 12 , and the third light-emitting layer 23 of the third sub-pixel 13 exist with each other in the second direction relative part. That is, a straight line is drawn along the second direction, the straight line passing through the first light-emitting layer 21 of the first sub-pixel 11, the second light-emitting layer 22 of the second sub-pixel 12, and the third light-emitting layer 23 of the third sub-pixel 13, In order to improve the compactness of the sub-pixel arrangement in the entire display panel 10, it is beneficial to improve the aperture ratio and PPI of the display panel.
  • the first subpixels in any two consecutively arranged pixels in the plurality of pixels are different first subpixels
  • the second subpixels in any two consecutively arranged pixels in the plurality of pixels are different second subpixels
  • the pixel, and the third sub-pixels in any two consecutively arranged pixels among the plurality of pixels are different third sub-pixels.
  • each pixel includes red, green, and blue pixels, and there is no need to borrow sub-pixels from adjacent units, which avoids display defects such as white borders when displaying specific graphics.
  • the dimension S4 of the interval S in the second direction is 15 ⁇ m; the length d1 of the shorter side of the effective portion 21 a of the first sub-pixel 11 is 7.7 ⁇ m, the length d2 of the longer side of the effective portion 21a of the first sub-pixel 11 is 9.4 ⁇ m; the length d3 of the shorter side of the effective portion 23a of the third sub-pixel 13 is 7.7 ⁇ m, and the third sub-pixel 12 The length d3 of the longer side of the effective portion 23a is 9.4 ⁇ m.
  • FIG. 2A is a schematic structural diagram of another display panel according to an embodiment of the disclosure.
  • the difference between the display panel shown in FIG. 2A and FIG. 1 is that, as shown in FIG. 2A , in each first sub-pixel group 31, the first light-emitting layers 21 of the consecutively arranged first sub-pixels 11 have an integrated structure; In each of the third sub-pixel groups 33, the third light-emitting layers 23 of the consecutively arranged third sub-pixels 13 have an integrated structure; in each of the second sub-pixel groups 32, the second The light-emitting layer 22 is not an integral structure, and in each second sub-pixel group 32, there is an interval S (non-light-emitting area) between the second light-emitting layers 22 of the second sub-pixels 12 arranged in a row, so that in each pixel, The arrangement of the second sub-pixel 12 (eg, the green sub-pixel), the first sub-pixel 11 (eg, the red sub-pixel) and the third sub-pixel 13 (eg,
  • FIG. 2A Other unmentioned features of the display panel shown in FIG. 2A are the same as those shown in FIG. 1A , please refer to the previous description and will not be repeated.
  • FIG. 3A is a schematic structural diagram of another display panel according to an embodiment of the disclosure
  • FIG. 3B is a comparison diagram of the aperture ratio and pixel density of the display panel shown in FIG. 3A and the aperture ratio and pixel density of a normal display panel
  • the difference between the display panel shown in FIGS. 3A-3B and FIG. 1A is that, as shown in FIG.
  • the planar shape of the first light emitting layer 21 , the planar shape of the second light emitting layer 22 and the planar shape of the third light emitting layer 23 are the same
  • the plane shape of the effective part 21a of the first light emitting layer 21, the plane shape of the effective part 22a of the second light emitting layer 22 and the plane shape of the effective part 23a of the third light emitting layer 23 are all rectangular.
  • the embodiment shown in FIG. 3A can also reduce the area of the non-light-emitting area to a certain extent, which is beneficial to the technical effect of improving the PPI and aperture ratio of the display panel. As shown in FIG.
  • the total pixel aperture ratio AR can be increased by 52%, and the corresponding service life can be increased by more than 11%.
  • the PPI can be increased by 24%.
  • Other unmentioned features of the display panel shown in FIG. 3A are the same as those shown in FIG. 1A , please refer to the previous description and will not be repeated.
  • FIG. 4A is a schematic structural diagram of yet another display panel according to an embodiment of the disclosure
  • FIG. 4B is a comparison diagram of the aperture ratio and pixel density of the display panel shown in FIG. 4A and the aperture ratio and pixel density of a conventional display panel. The difference between the display panel shown in FIGS. 4A-4B and FIG.
  • 1A is that the plane shape of the first light-emitting layer 21 , the plane shape of the second light-emitting layer 22 and the plane shape of the third light-emitting layer 23 are all rectangular;
  • the planar shape of the effective portion 21a of the layer 21, the planar shape of the effective portion 22a of the second light-emitting layer 22, and the planar shape of the effective portion 23a of the third light-emitting layer 23 are all rectangular; and, in each second sub-pixel group In 32, the second light-emitting layers 22 of the second sub-pixels 12 arranged in a row are not in an integrated structure; in each second sub-pixel group 32, there is an interval S between the second light-emitting layers 22 of the second sub-pixels 12 arranged in a row.
  • the second sub-pixel 12 eg, a green sub-pixel
  • the first sub-pixel 11 eg, a red sub-pixel
  • a third sub-pixel 13 eg, a blue sub-pixel
  • the arrangement of sub-pixels is more compact, and the distance relationship is more stable, so as to improve the color accuracy while maintaining the PPI and aperture ratio of the display panel.
  • the embodiment shown in FIG. 4A can also reduce the area of the non-emitting area to a certain extent, which is beneficial to the technical effect of improving the PPI and aperture ratio of the display panel, and, as shown in FIG.
  • the total aperture ratio of pixels can be increased by 75%, and the corresponding service life can be increased by more than 32%. In the case of the same aperture ratio, the PPI can be increased by 8%.
  • Other unmentioned features of the display panel shown in FIG. 3A are the same as those shown in FIG. 1A , please refer to the previous description and will not be repeated.
  • the first light-emitting layers 21 of the consecutively arranged first sub-pixels 11 are not an integral structure, and in each first sub-pixel group 31, The first light-emitting layers 21 of the first sub-pixels 11 that are continuously arranged have spaces between them (non-light-emitting regions).
  • the third light-emitting layers 23 of the consecutively arranged third sub-pixels 13 are not of an integrated structure, and in each third sub-pixel group 33, the consecutively arranged third sub-pixels 13 have The third light-emitting layers 23 have spaces between them (non-light-emitting regions).
  • the planar shape of the effective portion 22a of the second sub-pixel 12 is an irregular pattern.
  • at least part of the effective portion 22a of the second sub-pixel 12 has a first width w21, a second width w22, and a third width w23 that are sequentially away from the second symmetry axis C2 in the first direction, and the second width w22 is greater than the first width w21, the third width w23 is greater than the first width w21.
  • the third width w23 is 7.14 ⁇ m
  • the first width w21 is 4.92 ⁇ m; for example, the range of the second width is greater than 4.92 ⁇ m and less than 7.14 ⁇ m.
  • the embodiment shown in FIG. 5 can also reduce the area of the non-light-emitting region to a certain extent, which is beneficial to the technical effect of improving the PPI and aperture ratio of the display panel.
  • the PPI of the display panel is 460
  • the first width w21 is 7.14 ⁇ m
  • the third width w23 is 4.92 ⁇ m
  • the second width w22 is greater than 4.92 ⁇ m and less than or equal to 7.14 ⁇ m
  • the dimension S4 in the second direction is 15 ⁇ m
  • the length d1 of the shorter side of the effective portion 21 a of the first sub-pixel 11 is 13.5 ⁇ m
  • the length d2 of the longer side of the effective portion 21 a of the first sub-pixel 11 is 13.5 ⁇ m
  • the length d3 of the shorter side of the effective portion 23a of the third subpixel 13 is 13.5 ⁇ m
  • the length d3 of the longer side of the effective portion 23a of the third subpixel 12 is 13.5 ⁇ m.
  • Figure 5 for details.
  • FIG. 6 is a schematic structural diagram of a display panel with a pixel density different from that in FIG. 5 according to an embodiment of the present disclosure.
  • the distance between the effective portions of the light-emitting layers of the respective sub-pixels does not change with respect to FIG. 5 , but the size of the effective portions of the light-emitting layers of the respective sub-pixels is reduced.
  • the PPI of the display panel is 550
  • the size S4 of the interval S in the second direction is 15 ⁇ m
  • the length d1 of the shorter side of the effective portion 21 a of the first sub-pixel 11 is 7.7 ⁇ m
  • the length d2 of the longer side of the effective portion 21a of the first sub-pixel 11 is 9.4 ⁇ m
  • the length d3 of the shorter side of the effective portion 23a of the third sub-pixel 13 is 7.7 ⁇ m
  • the length d3 of the third sub-pixel 12 The length d3 of the longer side of the effective portion 23a is 9.4 ⁇ m.
  • the display panel provided by at least one embodiment of the present disclosure further includes a driving structure layer, and the driving structure layer includes a plurality of driving circuits, and each sub-pixel includes a driving circuit.
  • FIG. 8 is a schematic diagram of a display device provided by an embodiment of the present disclosure.
  • the display device 100 includes any one of the embodiments of the present disclosure.
  • Display panel 10 the display device can be any product or component with display function and touch function, such as display, OLED panel, OLED TV, electronic paper, mobile phone, tablet computer, notebook computer, digital photo frame, navigator, etc.
  • display function and touch function such as display, OLED panel, OLED TV, electronic paper, mobile phone, tablet computer, notebook computer, digital photo frame, navigator, etc.
  • At least one embodiment of the present disclosure further provides a method for fabricating a display panel, the fabrication method comprising: providing a base substrate; and forming a plurality of sub-pixels on the base substrate, at least a part of each of the sub-pixels includes light-emitting layer, wherein a mask is used to form the light-emitting layer of the plurality of sub-pixels through a patterning process, and the mask includes a plurality of mask openings; at least two sub-pixels consecutively arranged in the plurality of sub-pixels constitute a sub-pixel group, In the patterning process, at least part of the light-emitting layer of each sub-pixel group in the sub-pixel group is formed by using the same mask opening among the plurality of mask openings and has the same material.
  • the at least part of the sub-pixel groups includes at least two sub-pixel groups that respectively emit light of different colors.
  • the process of forming the light-emitting layer of the same color through the patterning process there are gaps between the light-emitting layers of adjacent sub-pixels formed through different openings of the mask, while the light-emitting layers formed by using the same opening.
  • the interval does not exist between the light-emitting layers of the at least two consecutive sub-pixels, so that the area of the non-light-emitting region can be reduced, which is beneficial to improve the PPI and aperture ratio of the display panel.
  • the light-emitting layers of the continuously-arranged sub-pixels formed through the same mask opening have an integrated structure.
  • the plurality of sub-pixels included in each of the plurality of pixels include: a first sub-pixel 11 , a second sub-pixel 12 and a third sub-pixel 13 .
  • the first sub-pixel 11 includes a first light-emitting layer 21 that emits light of a first color
  • the second sub-pixel 12 includes a second light-emitting layer 22 that emits light of a second color
  • the third sub-pixel 13 The third light emitting layer 23 is included, and the third light emitting layer 23 emits light of a third color, and the colors of the first color light, the second color light and the third color light are different from each other.
  • the first light-emitting layer emits red light
  • the second light-emitting layer emits green light
  • the third light-emitting layer emits blue light.
  • at least one or at least two of the following steps are performed: forming a first light emitting layer of each first sub-pixel group by using the same mask opening among the plurality of mask openings, using a plurality of masks The same mask opening among the openings forms the second light-emitting layer of each second sub-pixel group
  • the third light-emitting layer of each third sub-pixel group is formed using the same mask opening of the plurality of mask openings.
  • the mask is an evaporation mask, such as a metal mask, which includes a metal mask Lines 4 define a plurality of mask openings.
  • the plurality of mask openings include a first mask opening, a second mask opening, and a third mask opening.
  • the first light-emitting layer of each first sub-pixel group is formed by using the same first mask opening
  • the second light-emitting layer of each second sub-pixel group is formed by using the same second mask opening
  • the third light-emitting layer of each third sub-pixel group is formed by using the same third mask opening, that is, the light-emitting layers of at least two sub-pixels arranged continuously in three colors are formed through the same opening, In order to better improve the PPI and aperture ratio of the display panel.
  • the orthographic projections of the first mask opening, the second mask opening and the third mask opening on the base substrate 1 are respectively related to the first light-emitting layer of each first sub-pixel group and each second sub-pixel group formed.
  • the second light-emitting layer of each of the third sub-pixel groups substantially overlaps with the third light-emitting layer of each third sub-pixel group.
  • the display panel formed by this manufacturing method may be as shown in FIG. 1A . Please refer to the description of FIG. 1A for the specific features and technical effects of the display panel.
  • the first light-emitting layer of each first sub-pixel group is formed by using the same first mask opening, and a plurality of second mask openings and a plurality of second mask openings are formed.
  • the second light-emitting layers of the sub-pixels are in one-to-one correspondence, and a plurality of second mask openings are used to form the second light-emitting layers of a plurality of second sub-pixels, and the third light-emitting layers of each third sub-pixel group use the same first light-emitting layer.
  • Three-mask openings are formed to maintain high color accuracy while improving the PPI and aperture ratio of the display panel.
  • the display panel formed by this manufacturing method may be as shown in FIG. 2A or FIG. 4A . Please refer to the description of FIG. 2A or FIG. 4A for the specific features and technical effects of the display panel.
  • the method for fabricating the display panel further includes: before forming the light-emitting layer, forming a pixel defining layer, wherein the pixel defining layer includes a plurality of mask openings and a body defining a plurality of mask openings, the plurality of mask openings and the plurality of mask openings
  • the sub-pixels are in one-to-one correspondence; in the process of forming the light-emitting layers of the sub-pixels through a patterning process using a mask, the mask openings of the pixel definition layer correspond to the mask openings of the mask one-to-one, and the pixel defines
  • the orthographic projections of the plurality of mask openings of the layer on the base substrate are respectively located within the orthographic projections of the plurality of mask openings of the mask on the base substrate;
  • the active portion within the mask opening of the layer, and the edge portion on the main body of the pixel-defining layer, the orthographic projection of the edge portion on the base substrate is located outside the orthographic projection of the corresponding
  • the method for fabricating a display panel provided by at least one embodiment of the present disclosure further includes: forming a driving structure layer, a plurality of driving circuits in the driving structure layer, and each sub-pixel includes a driving circuit to be driven independently.
  • the manufacturing method of the display panel provided by at least one embodiment of the present disclosure further includes forming a plurality of other functional layers, for details, please refer to the following embodiments.
  • FIG. 10A is a schematic diagram of a film layer structure of an exemplary pixel array; as shown in FIG. 10A , the method may specifically include the following steps:
  • Step 1 Prepare the base substrate on the glass carrier.
  • the base substrate 10 may be a flexible base substrate, for example, including a first flexible material layer, a first inorganic material layer, a semiconductor layer, a second flexible material layer, and The second inorganic material layer.
  • the materials of the first flexible material layer and the second flexible material layer are polyimide (PI), polyethylene terephthalate (PET), or a surface-treated soft polymer film.
  • the materials of the first inorganic material layer and the second inorganic material layer are silicon nitride (SiNx) or silicon oxide (SiOx), etc., which are used to improve the water and oxygen resistance of the substrate.
  • the layer is also referred to as a barrier layer.
  • the material of the semiconductor layer is amorphous silicon (a-si).
  • the preparation process includes: firstly coating a layer of polyimide on the glass carrier 1, and curing to form a film Then, a first flexible (PI1) layer is formed; then a barrier film is deposited on the first flexible layer to form a first barrier (Barrier1) layer covering the first flexible layer; then an amorphous layer is deposited on the first barrier layer A silicon film to form an amorphous silicon (a-si) layer covering the first barrier layer; then a layer of polyimide is coated on the amorphous silicon layer, and a second flexible (PI2) layer is formed after curing into a film; Then, a barrier film is deposited on the second flexible layer to form a second barrier (Barrier 2) layer covering the second flexible layer, and the preparation of the base substrate 10 is completed, as shown in FIG. 6 .
  • Step 2 preparing a driving structure layer on the base substrate.
  • the driving structure layer includes a plurality of driving circuits, each of which includes a plurality of transistors and at least one storage capacitor, such as a 2T1C, 3T1C or 7T1C design. Three sub-pixels are taken as an example for illustration, and the driving circuit of each sub-pixel is only illustrated by taking one transistor and one storage capacitor as an example.
  • the preparation process of the driving structure layer may refer to the following description.
  • the manufacturing process of the driving circuit of the red sub-pixel is taken as an example for description.
  • a first insulating film and an active layer film are sequentially deposited on the base substrate 10, the active layer film is patterned through a patterning process to form a first insulating layer 011 covering the entire base substrate 010, and a first insulating layer 011 is formed on the first insulating layer
  • the active layer pattern on 011, the active layer pattern at least includes the first active layer.
  • a second insulating film and a first metal film are sequentially deposited, and the first metal film is patterned through a patterning process to form a second insulating layer 012 covering the pattern of the active layer, and a first insulating layer 012 disposed on the second insulating layer 012
  • a gate metal layer pattern, the first gate metal layer pattern at least includes a first gate electrode and a first capacitor electrode.
  • a third insulating film and a second metal film are sequentially deposited, and the second metal film is patterned through a patterning process to form a third insulating layer 013 covering the first gate metal layer, and a third insulating layer 013 disposed on the third insulating layer 013
  • the second gate metal layer pattern at least includes a second capacitor electrode, and the position of the second capacitor electrode corresponds to the position of the first capacitor electrode.
  • a fourth insulating film is deposited, and the fourth insulating film is patterned by a patterning process to form a fourth insulating layer 014 pattern covering the second gate metal layer, and at least two first via holes are opened on the fourth insulating layer 014,
  • the fourth insulating layer 014, the third insulating layer 013 and the second insulating layer 012 in the two first via holes are etched away, exposing the surface of the first active layer.
  • a third metal film is deposited, the third metal film is patterned through a patterning process, and a source-drain metal layer pattern is formed on the fourth insulating layer 014.
  • the source-drain metal layer at least includes the first source electrode and the first source electrode located in the display area. drain electrode.
  • the first source electrode and the first drain electrode may be connected to the first active layer through first via holes, respectively.
  • the first active layer, the first gate electrode, the first source electrode and the first drain electrode can form the first transistor 210, and the first capacitor electrode and the second capacitor electrode can form the first transistor 210.
  • a storage capacitor 212 In the above preparation process, the driving circuit of the green sub-pixel and the driving circuit of the blue sub-pixel can be formed at the same time.
  • the first insulating layer 011, the second insulating layer 012, the third insulating layer 013 and the fourth insulating layer 014 are silicon oxide (SiOx), silicon nitride (SiNx) and silicon oxynitride ( Any one or more of SiON), which may be a single layer, a multi-layer or a composite layer.
  • the first insulating layer 011 is called a buffer layer, which is used to improve the water and oxygen resistance of the base substrate;
  • the second insulating layer 012 and the third insulating layer 013 are called gate insulating (GI, Gate Insulator) layers;
  • the fourth insulating layer 014 is called an interlayer insulating (ILD, Interlayer Dielectric) layer.
  • the first metal film, the second metal film and the third metal film are made of metal materials, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti) and molybdenum (Mo).
  • metal materials such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti) and molybdenum (Mo).
  • Various, or alloy materials of the above metals such as aluminum neodymium alloy (AlNd) or molybdenum niobium alloy (MoNb), can be a single-layer structure, or a multi-layer composite structure, such as Ti/Al/Ti and the like.
  • the active layer film is made of amorphous indium gallium zinc oxide (a-IGZO), zinc oxynitride (ZnON), indium zinc tin oxide (IZTO), amorphous silicon (a-Si), polycrystalline silicon (p-Si), One or more materials such as hexathiophene and polythiophene, that is, the present disclosure is applicable to transistors manufactured based on oxide technology, silicon technology and organic matter technology.
  • a-IGZO amorphous indium gallium zinc oxide
  • ZnON zinc oxynitride
  • IZTO indium zinc tin oxide
  • a-Si amorphous silicon
  • p-Si polycrystalline silicon
  • One or more materials such as hexathiophene and polythiophene, that is, the present disclosure is applicable to transistors manufactured based on oxide technology, silicon technology and organic matter technology.
  • Step 3 forming a flat layer on the base substrate on which the aforementioned pattern is formed.
  • a planar thin film of organic material is coated on the base substrate 010 formed with the aforementioned patterns, to form a planarization (PLN, Planarization) layer 015 covering the entire base substrate 010, and through masking, exposure,
  • PPN Planarization
  • a plurality of second via holes are formed on the flat layer 015 in the display area.
  • the flat layer 015 in the plurality of second via holes is developed away, respectively exposing the surface of the first drain electrode of the first transistor 210 of the driving circuit of the red sub-pixel and the first drain electrode of the first transistor of the driving circuit of the green sub-pixel.
  • the surface of the drain electrode and the surface of the first drain electrode of the first transistor of the driving circuit of the blue color sub-pixel 03 are examples of the surface of the first drain electrode of the first transistor 210 of the driving circuit of the red sub-pixel and the first drain electrode of the first transistor of the driving circuit of the green sub-pixel.
  • Step 4 Form a first electrode pattern on the base substrate on which the aforementioned pattern is formed.
  • the first electrode is a reflective anode.
  • a conductive thin film is deposited on the base substrate 010 on which the aforementioned patterns are formed, and the conductive thin film is patterned through a patterning process to form the first electrode pattern.
  • the first anode 213 of the red sub-pixel is connected to the first drain electrode of the first transistor 210 through the second via hole
  • the second anode 223 of the green sub-pixel 2 is connected to the first drain electrode of the first transistor of the green sub-pixel 2 through the second via hole.
  • the drain electrode is connected, and the third anode 233 of the blue sub-pixel 23 is connected to the first drain electrode of the first transistor of the blue sub-pixel through the second via hole.
  • the first electrode may employ a metal material such as any one or more of magnesium (Mg), silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo).
  • a metal material such as any one or more of magnesium (Mg), silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo).
  • Various, or alloy materials of the above metals such as aluminum neodymium alloy (AlNd) or molybdenum niobium alloy (MoNb), can be a single-layer structure, or a multi-layer composite structure, such as Ti/Al/Ti, etc., or, a metal and Stacked structures formed of transparent conductive materials, such as reflective materials such as ITO/Ag/ITO, Mo/AlNd/ITO, etc.
  • Step 5 A pixel definition layer (PDL, Pixel Definition Layer) pattern is formed on the base substrate on which the aforementioned pattern is formed.
  • PDL Pixel Definition Layer
  • a pixel-defining film is coated on the base substrate 010 on which the aforementioned pattern is formed, and a pixel-defining layer pattern is formed by masking, exposing, and developing processes.
  • the pixel definition layer 30 in the display area includes a plurality of sub-pixel definition parts 302 , a plurality of pixel openings 301 are formed between adjacent sub-pixel definition parts 302 , and the pixel definition layer 30 in the plurality of pixel openings 301 is It is developed to expose at least part of the surface of the first anode 213 of the red sub-pixel, at least part of the surface of the second anode 223 of the green sub-pixel and at least part of the surface of the third anode 233 of the blue sub-pixel, respectively.
  • the pixel definition layer 30 may employ polyimide, acrylic, polyethylene terephthalate, or the like.
  • Step 6 A spacer column (PS, Post Spacer) pattern is formed on the base substrate on which the aforementioned pattern is formed.
  • a thin film of organic material is coated on the base substrate 010 on which the aforementioned pattern is formed, and a pattern of spacer pillars 34 is formed by masking, exposing, and developing processes.
  • the spacer posts 34 may serve as a support layer configured to support the FMM (high-precision mask) during the evaporation process.
  • a repeating unit is spaced between two adjacent spacer columns 34.
  • the spacer columns 34 may be located in adjacent red sub-pixels and blue-colored sub-pixels between 03.
  • Step 7 On the base substrate on which the aforementioned pattern is formed, an organic functional layer and a second electrode are sequentially formed.
  • the second electrode is a transparent cathode.
  • the light-emitting element can emit light from the side away from the base substrate 010 through the transparent cathode to realize top emission.
  • the organic functional layers of the light emitting element include: a hole injection layer, a hole transport layer, a light emitting layer, and an electron transport layer.
  • the hole injection layer 241 and the hole transport layer 242 are sequentially formed by vapor deposition using an open mask on the base substrate 010 on which the aforementioned patterns are formed, and then the FMM is sequentially vapor deposited.
  • the blue light-emitting layer 236 , the green light-emitting layer 216 and the red light-emitting layer 226 are formed, and then the electron transport layer 243 , the cathode 244 and the light coupling layer 245 are formed by successive evaporation using an open mask.
  • the hole injection layer 241 , the hole transport layer 242 , the electron transport layer 243 and the cathode 244 are all common layers of a plurality of sub-pixels.
  • the organic functional layer may further include: a microcavity adjustment layer between the hole transport layer and the light emitting layer.
  • FMM can be used to sequentially evaporate a blue microcavity adjusting layer, a blue light-emitting layer, a green microcavity adjusting layer, a green light-emitting layer, a red microcavity adjusting layer, and a red light-emitting layer.
  • FIG. 10A there may be overlap between the adjacently disposed blue light emitting layer 236 , green light emitting layer 216 , and red light emitting layer 226 formed by evaporation due to the limitation of the FMM opening.
  • FIG. 10B is a schematic diagram of the film layer structure of another exemplary pixel array. It can be seen from FIG. 10B that the adjacent blue light-emitting layer 236 , the green light-emitting layer 216 and the red light-emitting layer 226 may not have any space between them. Overlap, that is, by selecting FMMs with different opening sizes, the sizes of the formed light-emitting layers are also different.
  • the organic functional layer is formed in the sub-pixel region to realize the connection between the organic functional layer and the anode.
  • the cathode is formed on the pixel definition layer and connected to the organic functional layer.
  • the cathode may employ any one or more of magnesium (Mg), silver (Ag), aluminum (Al), or an alloy made of any one or more of the foregoing metals , or a transparent conductive material, such as indium tin oxide (ITO), or a multi-layer composite structure of metal and transparent conductive material.
  • Mg magnesium
  • Ag silver
  • Al aluminum
  • ITO indium tin oxide
  • a light coupling layer may be formed on the side of the cathode 244 away from the base substrate 10 , and the light coupling layer may be a common layer of a plurality of sub-pixels.
  • the light coupling layer can cooperate with the transparent cathode to increase the light output.
  • the material of the light coupling layer can be a semiconductor material. However, this embodiment does not limit this.
  • Step 8 forming an encapsulation layer on the base substrate on which the aforementioned patterns are formed.
  • an encapsulation layer is formed on the base substrate 010 on which the aforementioned patterns are formed, and the encapsulation layer may include a first encapsulation layer 41 , a second encapsulation layer 42 and a third encapsulation layer 43 that are stacked.
  • the first encapsulation layer 41 is made of inorganic material and covers the cathode 244 in the display area.
  • the second encapsulation layer 42 adopts an organic material.
  • the third encapsulation layer 43 is made of inorganic material and covers the first encapsulation layer 41 and the second encapsulation layer 42 .
  • the encapsulation layer may adopt a five-layer structure of inorganic/organic/inorganic/organic/inorganic.

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Abstract

一种显示面板(10)及其制作方法以及显示装置(100)。该显示面板包括衬底基板(1)，所述衬底基板(1)上设置有多个子像素(11/12/13)，所述多个子像素(11/12/13)的至少部分子像素(11/12/13)包括发光层；所述多个子像素(11/12/13)中连续排列的至少两个子像素(11/12/13)构成一个子像素组(31/32/33)，在至少部分所述子像素组(31/32/33)的每个子像素组(31/32/33)中，连续排列的至少两个子像素(11/12/13)的发光层材料相同且为一体结构；所述至少部分子像素组(31/32/33)包括至少两种分别发不同颜色的光的子像素组(31/32/33)。该显示面板(10)能够减小非发光区域的面积，显示面板的PPI和开口率得到提高。

Description

显示面板及其制作方法以及显示装置 技术领域
本公开至少一实施例涉及一种显示面板及其制作方法以及显示装置。
背景技术
目前高PPI(Pixels Per Inch，表征像素密度)显示是显示技术发展的方向，对于AMOLED(Active-matrix organic light emitting diode，有源矩阵有机发光二极体或主动矩阵有机发光二极体)发光显示来说，高密度的像素排布，提高了像素阵列的蒸镀工艺难度，工艺极限限制了PPI进一步提高。同时，显示面板中，通常随着像素排布随着PPI的升高，开口率会明显降低，同时显示面板的寿命也会降低。
发明内容
本公开至少一实施例提供一种显示面板，该显示面板包括衬底基板，所述衬底基板上设置有多个子像素，所述多个子像素的至少部分子像素包括发光层；所述多个子像素中连续排列的至少两个子像素构成一个子像素组，在至少部分所述子像素组的每个子像素组中，连续排列的至少两个子像素的发光层材料相同且为一体结构；所述至少部分子像素组包括至少两种分别发不同颜色的光的子像素组。
例如，本公开一实施例提供的显示面板中，所述衬底基板上设置有多个像素，所述多个像素的每个包括多个子像素，一个所述像素的多个子像素包括：第一子像素、第二子像素和第三子像素。第一子像素包括第一发光层，其中，所述第一发光层发射第一色光；第二子像素包括第二发光层，所述第二发光层发射第二色光；第三子像素包括第三发光层，所述第三发光层发射第三色光，所述第一色光、所述第二色光和所述第三色光的颜色彼此不同；至少两个所述第一子像素连续排列并构成一个第一子像素组；至少两个所述第二子像素连续排列并构成一个第二子像素组；至少两个所述第三子像素连续排列并构成一个第三子像素组；并且所述至少部分子像素组包括所述第一子像素组、所述第二子像素组和所述第三子像素组三者中的至少两者。
例如，本公开一实施例提供的显示面板中，在至少部分所述第一子像素组的每个中，连续排列的所述第一子像素的第一发光层为一体结构；在至少部分所述第二子像素组的每个中，连续排列的所述第二子像素的第二发光层为一体结构；以及在至少部分所述第三子像素组的每个中，连续排列的所述第三子像素的第三发光层为一体结构。
例如，本公开一实施例提供的显示面板中，在所述至少部分第一子像素组的每个中，连续排列的两个所述第一子像素的第一发光层构成的一体结构的平面形状包括六边形、八边形、椭圆形、菱形、梭形；和/或，在所述至少部分第三子像素组的每个中，连续排列 的两个所述第三子像素的第三发光层构成的一体结构的平面形状包括六边形、八边形、椭圆形、菱形、梭形。
例如，本公开一实施例提供的显示面板中，在至少部分所述第一子像素组的每个中，连续排列的所述第一子像素的第一发光层为一体结构；在至少部分所述第二子像素组的每个中，连续排列的所述第二子像素的第二发光层不是一体结构；以及在至少部分所述第三子像素组的每个中，连续排列的所述第三子像素的第三发光层为一体结构。
例如，本公开一实施例提供的显示面板中，所述第二子像素的发光层的面积大于所述第一子像素的发光层的面积并大于第三子像素的发光层的面积。
例如，本公开一实施例提供的显示面板中，所述第一子像素的第一发光层的较短的底边和与该第一子像素相邻的所述第三子像素的第三发光层的较短的底边彼此靠近且相对。
例如，本公开一实施例提供的显示面板中还包括像素界定层，像素界定层包括多个开口和限定出所述多个开口的主体，其中，所述多个开口与所述多个子像素一一对应；在所述至少部分子像素组的每个子像素组中，每个子像素的发光层包括位于对应的所述像素界定层的开口内的有效部分，以及位于所述像素界定层的主体上的边缘部分。
例如，本公开一实施例提供的显示面板中，每个所述第一子像素组中连续排列的两个所述第一子像素的有效部分彼此靠近且彼此相对的边之间的第一距离、每个所述第二子像素组中连续排列的两个所述第二子像素的有效部分彼此靠近且彼此相对的边之间的第二距离、以及每个所述第三子像素组中连续排列的两个所述第三子像素的有效部分彼此靠近且彼此相对的边之间的第三距离三者基本相等。
例如，本公开一实施例提供的显示面板中，所述第一距离、所述第二距离和所述第三距离分别小于等于8μm。
例如，本公开一实施例提供的显示面板中，所述第一子像素的有效部分的平面形状、所述第二子像素的有效部分的平面形状和所述第三子像素的有效部分的平面形状分别与所述第一发光层整体的平面形状、所述第二发光层整体的平面形状和所述第三发光层整体的平面形状一致。
例如，本公开一实施例提供的显示面板中，所述至少部分第一子像素组的每个中，连续排列的所述第一子像素的每个有效部分的平面形状为梯形且连续排列两个的所述第一发光层的有效部分较长的底边彼此靠近且相对；和/或，所述至少部分第三子像素组的每个中，连续排列的所述第三子像素的每个有效部分的平面形状为梯形且连续排列两个的所述第三发光层的有效部分较长的底边彼此靠近且相对。
例如，本公开一实施例提供的显示面板中，所述第一发光层的有效部分的平面形状、所述第二发光层的有效部分的平面形状和所述第三发光层的有效部分的平面形状为均为矩形。
例如，本公开一实施例提供的显示面板中，在所述至少部分子像素组的每个子像素组中，所述有效部分的边与所述边缘部分的外轮廓的边一一对应，所述有效部分与所述边缘 部分的外轮廓的每对互相对应的边彼此靠近且相对，所述有效部分与所述边缘部分的外轮廓的每对互相对应的边之间的间距小于等于9μm。
例如，本公开一实施例提供的显示面板中，在所述第一子像素中、所述第二子像素中、所述第三子像素中，所述有效部分的边到所述边缘部分的外轮廓的边之间的间距相等。
例如，本公开一实施例提供的显示面板中，所述像素阵列包括沿第一方向延伸的多个子像素行、沿第二方向延伸的多个第一子像素列和沿第二方向延伸的多个第二子像素列，每个所述第二子像素列位于连续排列的所述第一子像素列之间，所述第二方向与所述第一方向相交；每个所述第一子像素列中，所述第一子像素组与所述第三子像素组交替排列；每个所述第二子像素列中，多个所述第二子像素组依次排列；所述第二子像素组的第二发光层和与该第二子像素组连续排列的所述第二子像素组的第二发光层不是一体结构。
例如，本公开一实施例提供的显示面板中，所述第二子像素组的第二发光层与与该第二子像素组连续排列的所述第二子像素组的第二发光层之间存在间隔；所述第二子像素组的一体结构的第二发光层中的相邻两个有效部分之间的距离小于彼此之间存在所述间隔的两个相邻的第二发光层的有效部分之间的距离。
例如，本公开一实施例提供的显示面板中，每个所述第一子像素的有效部分的面积与每个所述第一子像素的整个发光层的面积的比值为17％；每个所述第二子像素的有效部分的面积与每个所述第二子像素的整个发光层的面积的比值为21％；每个所述第三子像素的有效部分的面积与每个所述第三子像素的整个发光层的面积的比值为30％。
例如，本公开一实施例提供的显示面板中，位于一个所述第一子像素列中彼此相邻的一个第一子像素和一个第三子像素、以及位于与该一个第一子像素列相邻的所述第二子像素列中的一个第二子像素构成一个像素；或者，分别位于在所述第一方向上连续排列的所述第一子像素组、所述第二子像素组和所述第三子像素组中的一个第一子像素、一个第二子像素和一个第三子像素构成一个像素。
例如，本公开一实施例提供的显示面板中，所述多个像素在所述第一方向上和所述第二方向上分别呈周期排列；在一个所述像素中，所述第一子像素、所述第二子像素和所述第三子像素在所述第二方向上不对齐，且所述第二子像素的靠近所述第一子像素和所述第三子像素的边缘与所述第一子像素和所述第三子像素这两者的靠近该第二子像素的边缘均有交叠。
例如，本公开一实施例提供的显示面板中，位于同一行的多个所述第二子像素在所述第二方向上有交叠，位于同一列的多个所述第二子像素在所述第一方向上有交叠。
例如，本公开一实施例提供的显示面板中，所述第一子像素、所述第二子像素和所述第三子像素中至少之一的有效发光部分的尺寸最长的方向与所述第一方向或所述第二方向之间具有夹角，所述夹角的角度大于零小于等于45度。
例如，本公开一实施例提供的显示面板中，所述第二子像素的有效部分在第二方向上的长度大于所述第一子像素的有效部分在第二方向上的长度，且大于所述第三子像素的有 效部分在第二方向上的长度。
例如，本公开一实施例提供的显示面板中，在每个所述第一子像素组中，连续排列的两个第一子像素的第一发光层的有效部分相对于沿第一方向延伸的第一对称轴对称；和/或，在每个所述第二子像素组中，连续排列的两个第二子像素的第二发光层的有效部分相对于沿第一方向延伸的第二对称轴对称；和/或，在每个所述第三子像素组中，连续排列的两个第三子像素的第三发光层的有效部分相对于沿第一方向延伸的第三对称轴对称。
例如，本公开一实施例提供的显示面板中，在所述第一方向上排列且位于同行的所述第一子像素组、所述第二子像素组和所述第三子像素组的平面形状的几何中心基本位于沿第一方向延伸的同一直线上。
例如，本公开一实施例提供的显示面板中，每个所述第一子像素组中，每个第一子像素的有效部分包括靠近所述第一对称轴的近边和远离所述第一对称轴的远边，所述每个第一子像素的有效部分的近边的长度大于所述每个第一子像素的远边的长度；和/或，每个所述第三子像素组中，每个第三子像素的有效部分包括靠近所述第三对称轴的近边和远离所述第三对称轴的远边，所述每个第三子像素的有效部分的近边的长度大于所述每个第三子像素的有效部分的远边的长度。
例如，本公开一实施例提供的显示面板中，每个所述第一子像素组的每个第一子像素的有效部分的近边到所述第二对称轴的距离、每个所述第二子像素组的每个第二子像素的有效部分的近边到所述第二对称轴的距离、每个所述第三子像素组的每个第三子像素的有效部分的近边到所述第三对称轴的距离三者中的至少两者基本相等。
例如，本公开一实施例提供的显示面板中，所述第一方向为每个子像素的宽度方向，所述每个第二子像素的有效部分在所述第一方向上具有依次远离所述第二对称轴的第一宽度、第二宽度和第三宽度，所述述第二宽度大于所述第一宽度，所述第三宽度大于所述第一宽度。
例如，本公开一实施例提供的显示面板中，所述第一方向为每个子像素的宽度方向，所述第二方向为每个子像素的长度方向；在一个所述像素中，所述第二子像素的有效部分的长宽比大于所述第三子像素的有效部分的长宽比，且大于所述第一子像素的有效部分的长宽比。
例如，本公开一实施例提供的显示面板中，所述第二子像素的有效部分在所述宽度方向上的宽度小于所述第一子像素的有效部分在所述宽度方向上的宽度，且小于第三子像素的有效部分在所述宽度方向上的宽度。
例如，本公开一实施例提供的显示面板中，所述第二子像素在所述长度方向上的长度大于所述第一子像素在所述长度方向上的长度，且大于所述第三子像素在所述长度方向上的长度。
例如，本公开一实施例提供的显示面板中，所述第一子像素的有效部分的长宽比为1:2.5～1:1，所述第二子像素的有效部分的长宽比为9:1～2:1，所述第三子像素的有效部分 的长宽比为3:1～1:1。
例如，本公开一实施例提供的显示面板中，所述第二发光层的有效部分的平面形状为多边形，所述第二发光层的有效部分的平面形状包括第一平行边和第二平行边，所述第一平行边平行于与该第二发光层相邻的第一发光层的有效部分的至少一条边，所述第二平行边平行于与该第二发光层相邻的第三发光层的有效部分的至少一条边。
例如，本公开一实施例提供的显示面板中，所述第二发光层的有效部分具有与所述第一发光层和所述第三发光层的有效部分具有相同方向的对称轴，或者，第二发光层的有效部分不具有与第一发光层和第三发光层的有效部分相同方向的对称轴。
例如，本公开一实施例提供的显示面板中，在所述第一方向上，所述第二子像素组的发光层分别和与其相邻的所述第一子像素组、所述第三子像素组的发光层相接触；在所述第二方向上，所述第一子像素组的发光层和与其相邻的第三子像素组的发光层相接触。
例如，本公开一实施例提供的显示面板中，在至少一个所述第二子像素组中，连续排列的两个所述第二子像素的第二发光层构成的一体结构的平面形状在所述第一方向上具有第一尺寸、第二尺寸和第三尺寸，所述第一尺寸、所述第二尺寸和所述第三尺寸在所述第二方向上依次排布，且所述第一尺寸大于所述第二尺寸，所述第三尺寸大于所述第二尺寸，所述连续排列的两个所述第二子像素的第二发光层构成的一体结构的平面形状在所述第二方向上的最大长度大于其在所述第一方向上的最大宽度。
本公开至少一实施例还提供一种显示装置，该显示装置包括本公开实施例提供的任意一种显示面板。
本公开至少一实施例还提供一种显示面板的制作方法，该显示面板的制作方法包括：提供衬底基板；以及在所述衬底基板上形成多个子像素，所述多个子像素的至少部分子像素包括发光层，其中，采用掩膜通过构图工艺形成所述多个子像素的发光层，所述掩膜包括多个掩膜开口；所述多个子像素中连续排列的至少两个子像素构成一个子像素组，在所述构图工艺中，至少部分所述子像素组中的每个子像素组的发光层是利用所述多个掩膜开口中的同一个掩膜开口形成的且材料相同；所述至少部分子像素组包括至少两种分别发不同颜色的光的子像素组。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1A为本公开一实施例提供的一种显示面板的结构示意图；
图1B为图1A所示的显示面板的开口率与像素密度与通常的显示面板的开口率与像素密度的对比图；
图2A为本公开一实施例提供的另一种显示面板的结构示意图；
图2B为连续排列的两个第一子像素的第一发光层构成的一体结构的平面形状示意图 一；
图2C为连续排列的两个第一子像素的第一发光层构成的一体结构的平面形状示意图二；
图2D为连续排列的两个第一子像素的第一发光层构成的一体结构的平面形状示意图三；
图2E为连续排列的两个第一子像素的第一发光层构成的一体结构的平面形状示意图四；
图2F为连续排列的两个第二子像素的第二发光层构成的一体结构的平面形状示意图；
图3A为本公开一实施例提供的又一种显示面板的结构示意图；
图3B为图3A所示的显示面板的开口率与像素密度与通常的显示面板的开口率与像素密度的对比图；
图4A为本公开一实施例提供的又一种显示面板的结构示意图；
图4B为图4A所示的显示面板的开口率与像素密度与通常的显示面板的开口率与像素密度的对比图；
图5为本公开一实施例提供的再一种显示面板的结构示意图；
图6为本公开一实施例提供的一种与图5中像素密度不同的显示面板的结构示意图；
图7A为一个像素的子像素的阳极孔的位置示意图一；
图7B为一个像素的子像素的阳极孔的位置示意图二；
图8为本公开一实施例提供的一种显示装置的示意图；
图9为本公开一实施例提供的一种显示面板的制作方法过程中使用掩膜的示意图；
图10A为一种示例性的像素阵列的膜层结构示意图；
图10B为另一种示例性的像素阵列的膜层结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其它实施例，都属于本发明保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本发明专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“内”、“外”、“上”、“下”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对 位置关系也可能相应地改变。
本公开中的附图并不是严格按实际比例绘制，显示面板中像素的个数和每个像素中子像素的个数也不是限定为图中所示的数量，各个结构的具体地尺寸和数量可根据实际需要进行确定。本公开中所描述的附图仅是结构示意图。
本公开至少一实施例提供一种显示面板，该显示面板包括衬底基板，所述衬底基板上设置有多个子像素，所述多个子像素的至少部分子像素包括发光层；所述多个子像素中连续排列的至少两个子像素构成一个子像素组，在至少部分所述子像素组的每个子像素组中，连续排列的至少两个子像素的发光层材料相同且为一体结构；所述至少部分子像素组包括至少两种分别发不同颜色的光的子像素组。该显示面板能够减小非发光区域的面积，显示面板的PPI和开口率得到提高。
示例性地，图1A为本公开一实施例提供的一种显示面板的结构示意图；图1B为图1A所示的显示面板的开口率与像素密度与通常的显示面板的开口率与像素密度的对比图。如图1A所示，本公开至少一实施例提供的显示面板10包括衬底基板1，衬底基板1上设置有呈阵列排布的多个像素11；多个像素11的每个包括多个子像素11/12/13，例如多个子像素11/12/13的每个包括发光元件，发光元件包括发光层21/22/23；多个子像素11/12/13中连续排列的至少两个子像素构成一个子像素组31/32/33，在至少部分子像素组31/32/33的每个子像素组中，连续排列的至少两个子像素的发光层的材料相同，例如发射相同颜色的光，且连续排列的至少两个子像素的发光层为一体结构。从而，在通过构图工艺例如蒸镀工艺形成发光层的过程中，该一体结构的发光层可以通过掩膜的同一个开口形成。通常，由于工艺原因，在通过构图工艺形成同一种颜色的发光层的过程中，分别通过掩膜的不同开口形成的相邻的子像素的发光层之间存在间隔，而利用同一个开口形成的连续排列的至少两个子像素的发光层之间不存在该间隔，从而可以减小非发光区域的面积，利于提高显示面板的PPI和开口率。
例如，发光元件为电致发光器件，例如有机发光二极管(OLED)器件。
例如，图1A以多个像素的每个包括三个子像素，连续排布的两个子像素构成一个子像素组为例。具体地，如图1A所示，多个像素的每个所包括的多个子像素包括：第一子像素11、第二子像素12和第三子像素13。第一子像素11包括第一发光层21，第一发光层21发射第一色光；第二子像素12包括第二发光层22，第二发光层22发射第二色光；第三子像素13包括第三发光层23，第三发光层23发射第三色光，第一色光、第二色光和第三色光的颜色彼此不同。例如，第一发光层发射红光，第二发光层发射绿光，第三发光层发射蓝光。例如，两个第一子像素11连续排列并构成一个第一子像素组31；两个第二子像素12连续排列并构成一个第二子像素组32；两个第三子像素13连续排列并构成一个第三子像素组33；并且上述至少部分子像素组包括第一子像素组31、第二子像素组32和第三子像素组33三者中的至少一者，即可以一定程度上达到上述技术效果；或者，上述至少部分子像素组包括第一子像素组31、第二子像素组32和第三子像素组33三者 中的至少两者，即上述至少部分子像素组包括至少两种分别发不同颜色的光的子像素组。
例如，如图1A示，在至少一个实施例中，在至少部分第一子像素组31的每个中，连续排列的第一子像素11的第一发光层21为一体结构，例如一个第一子像素组31中相邻的两个第一子像素11的第一发光层21的材料相同且彼此之间没有任何间隙和接缝，是利用同一材料在同一构图工艺中经掩膜的同一开口形成的，例如经掩膜的同一开口沉积或蒸镀形成；在至少部分第二子像素组32的每个中，连续排列的第二子像素12的第二发光层22为一体结构，例如一个第二子像素组32中相邻的两个第二子像素12的第二发光层22的材料相同且彼此之间没有任何间隙和接缝，是利用同一材料在同一构图工艺中经掩膜的同一开口形成的，例如经掩膜的同一开口沉积或蒸镀形成；并且，在至少部分第三子像素组33的每个中，连续排列的第三子像素14的第三发光层为一体结构，例如一个第三子像素组33中相邻的两个第三子像素13的第三发光层23的材料相同且彼此之间没有任何间隙和接缝，是利用同一材料在同一构图工艺中经掩膜的同一开口形成的，例如经掩膜的同一开口沉积或蒸镀形成。如此，对于三种子像素均可以达到上述减小非发光区域的面积，达到较好的提高显示面板的PPI和开口率的效果。如图1B所示，在同等PPI的条件下，像素总开口率可提升70％，对应使用寿命提高13％以上；在同等开口率的情况下，PPI可提升50％。
需要说明的是，第一子像素、第二子像素和第三子像素的发光层的发光颜色局限于上述的红色、绿色和蓝色，一个像素也不限于包括第一子像素、第二子像素和第三子像素三个子像素，例如还可以包括例如发白光的第四子像素，本公开对此不作限定。
例如，如图1A所示，在至少部分第一子像素组31的每个中，连续排列的两个第一子像素13的第一发光层21构成的一体结构的平面形状为六边形，当然，在其他一些实施例中，还可以为八边形例如如图2B所示、椭圆形例如如图2C所示、菱形例如如图2D所示、梭形例如如图2E所示中的至少之一；例如，上述八边形、椭圆形、菱形和梭形分别为轴对称图形或者不是轴对称图形；和/或，在至少部分所述第三子像素33组的每个中，连续排列的两个所述第三子像素13的第三发光层23构成的一体结构的平面形状为六边形，当然，在其他一些实施例中，还可以为八边形、椭圆形、菱形、梭形中的至少之一，该八边形、椭圆形、菱形、梭形可参考图2B-2E所示的形状。当然，连续排列的两个第一子像素13的第一发光层21构成的一体结构的平面形状、连续排列的两个所述第三子像素13的第三发光层23构成的一体结构的平面形状不限于上述列举的种类，可根据具体需要进行设计。
例如，如图1A所示，至少一个第二子像素组32中，连续排列的两个第二子像素12的第二发光层22构成的一体结构的平面形状在第一方向上具有第一尺寸w2a、第二尺寸w2b和第三尺寸w2c，第一尺寸w2a、第二尺寸w2b和第三尺寸w2c在第二方向上依次排布，且第一尺寸w2a大于第二尺寸w2b，第三尺寸w2c大于第二尺寸w2b，即中间小两端大的形状，且连续排列的两个第二子像素12的第二发光层22构成的一体结构的平面形 状在第二方向上的最大长度大于其在第一方向上的最大宽度。例如，第一尺寸w2a与第三尺寸w2c相等。再例如，连续排列的两个第二子像素12的第二发光层22构成的一体结构的平面形状可以为如图2F所示的哑铃型。
例如，如图1A所示，第一发光层21的平面形状为梯形，连续排列的第一发光层21的较长的底边彼此靠近且相对，例如连续排列的两个第一发光层21的较长的底边31a和31b彼此靠近且相对例如两者重叠；和/或，第三发光层23的平面形状为梯形，连续排列的第三发光层23的较长的底边33a和33b彼此靠近且相对例如两者重叠。利于形成较为规整的边缘，以便于在相邻的均包括第一子像素和第三子像素的两列子像素之间设置填充这两列子像素的第二子像素，从而充分利用这两列子像素之间较为规整的间隙，减小非发光区域的面积，利于提高显示面板的PPI和开口率。试验数据表明，在其他条件相同的条件下，满足该特征的显示面板提高PPI或开口率效果较好。满足该特征的图1A所示的实施例可以达到的提高PPI和开口率的效果如图1B所示，在同等PPI的条件下，像素总开口率可提升70％，对应使用寿命提高13％以上；在同等开口率的情况下，PPI可提升50％。
例如，第一子像素11的第一发光层21的较短的底边31c和与该第一子像素11相邻的第三子像素13的第三发光层23的较短的底边33c彼此靠近且相对，例如第一发光层21的较短的底边31c和较短的底边33c较短的底边33c重叠。如此，利于形成较为规整的边缘，以便于在相邻的均包括第一子像素和第三子像素的两列子像素之间设置填充这两列子像素的第二子像素，从而充分利用这两列子像素之间较为规整的间隙，减小非发光区域的面积，利于提高显示面板的PPI和开口率。满足该特征的图1A所示的实施例可以达到的提高PPI和开口率的效果如图1B所示，在同等PPI的条件下，像素总开口率可提升70％，对应使用寿命提高13％以上；在同等开口率的情况下，PPI可提升50％。
例如，显示面板10还包括像素界定层(图未示出，可参考本领域常规技术中关于像素界定层的设计)，像素界定层包括多个开口和限定出多个开口的主体，像素界定层的多个开口与多个子像素一一对应；在上述至少部分子像素组的每个子像素组(即该每个像素组包括连续排列的至少两个子像素的发光层构成的一体结构)中，每个子像素的发光层包括位于对应的所述像素界定层的开口内的有效部分，以及位于像素界定层的主体上的边缘部分。在形成发光层的构图工艺中，例如掩膜的与每个子像素对应的开口在衬底基板1上的正投影与该子像素的有效部分与边缘部分构成的整体在衬底基板1上的正投影重叠。第一子像素11的发光层21包括位于对应的所述像素界定层的开口内的有效部分21a以及位于像素界定层的主体上的边缘部分21b；第二子像素12的发光层22包括位于对应的所述像素界定层的开口内的有效部分22a以及位于像素界定层的主体上的边缘部分22b；第三子像素13的发光层23包括位于对应的所述像素界定层的开口内的有效部分23a以及位于像素界定层的主体上的边缘部分23b。
例如，至少部分第一子像素组31的每个中，连续排列的两个第一子像素11的有效部分21a彼此靠近且彼此相对的边之间的第一距离h1、每个第二子像素组32中连续排列的 两个第二子像素12的有效部分22a彼此靠近且彼此相对的边之间的第二距离h2、以及至少部分所述第三子像素组33的每个中，连续排列的两个所述第三子像素13的有效部分23a彼此靠近且彼此相对的边之间的第三距离h3三者基本相等，有利于整个显示面板10的显示色彩的均衡。
例如，第一距离h1、所述第二距离h2和所述第三距离h3分别小于等于8μm。相比于第一子像素组31、第二子像素组32和第三子像素组33中分别连续排列的两个子像素不是一体结构(例如存在间隔或间隙)的情况，该第一距离h1、所述第二距离h2和所述第三距离h3较小，能够提高子像素的排布密度，利于提高显示面板10的PPI。
例如，如图1A所示，第一子像素11的有效部分21a的平面形状、所述第二子像素12的有效部分22a的平面形状和所述第三子像素13的有效部分23a的平面形状分别与所述第一发光层21整体的平面形状、所述第二发光层22整体的平面形状和所述第三发光层23整体的平面形状一致，有利于整个显示面板10的各个子像素的发光层排布的均匀性，降低制作难度。
例如，如图1A所示，每个所述第一子像素组31中，连续排列的所述第一子像素11的每个有效部分21a的平面形状为梯形且连续排列两个的所述第一发光层21的有效部分21a较长的底边彼此靠近且相对；和/或，每个所述第三子像素组33中，连续排列的所述第三子像素13的每个有效部分23a的平面形状为梯形且连续排列两个的所述第三发光层23的有效部分23a较长的底边彼此靠近且相对。在其他条件相同的条件下，满足该特征的显示面板提高PPI或开口率效果较好。满足该特征的图1A所示的实施例可以达到的提高PPI和开口率的效果如图1B所示，在同等PPI的条件下，像素总开口率可提升70％，对应使用寿命提高13％以上；在同等开口率的情况下，PPI可提升50％。
例如，如图1A所示，在所述至少部分子像素组的每个子像素组(即该每个像素组包括连续排列的至少两个子像素的发光层构成的一体结构)中，所述有效部分的边与所述边缘部分的外轮廓的边一一对应，所述有效部分与所述边缘部分的外轮廓的每对互相对应的边彼此靠近且相对，所述有效部分与所述边缘部分的外轮廓的每对互相对应的边之间的间距S1、S2、S3小于等于9μm，相比于第一子像素组31、第二子像素组32和第三子像素组33中分别连续排列的两个子像素不是一体结构(例如存在间隔或间隙)的情况，本实施例中该间距被减小。
例如，在第一子像素11中、第二子像素12中、第三子像素13中，有效部分21a、22a、23a的边到对应的边缘部分的外轮廓的边之间的间距相等，即间距S1、S2、S3三者相等；当然，在其他一些实施例中，间距S1、S2、S3也可以不相等。例如，在PPI为460或550的显示面板中，间距S1、S2、S3均为8.65μm，此时，图1A中相邻的不同颜色的子像素的有效部分的彼此靠近且平行的边之间的距离S5、S6、S7均为17.3μm。
例如，如图1A所示，显示面板10的像素阵列包括沿第一方向延伸的多个子像素行、沿第二方向延伸的多个第一子像素列和沿第二方向延伸的多个第二子像素列，每个所述第 二子像素列位于连续排列的所述第一子像素列之间；第二方向与第一方向相交，例如在图1A所示的实施例中，第二方向与第一方向垂直。第一子像素列的每列中，第一子像素组31与第三子像素组33交替排列；至少部分第二子像素列的每列中，多个第二子像素组32依次排列，例如在第一子像素列与第三子像素列中不存在第二子像素12；第二子像素组32的第二发光层22和与该第二子像素组32连续排列的第二子像素组的第二发光层不是一体结构。由于工艺原因，在本实施例中，两个连续排列的第二子像素组32的发光层是通过掩膜的两个不同的开口形成的，因此两个连续排列的第二子像素组32的发光层之间存在间隔。
例如，在第一方向上，第二子像素组32的发光层分别和与其相邻的第一子像素组31、第三子像素组33的发光层相接触；在第二方向上，第一子像素组31的发光层和与其相邻的第三子像素组33的发光层相接触，以使得各子像素的排布紧凑，利于提高显示面板10的PPI和开口率。
例如，如图1A所示，第二子像素组32的第二发光层22与与该第二子像素组32连续排列的第二子像素组32的第二发光层22之间存在间隔S；所述第二子像素组32的一体结构的第二发光层22中的相邻两个有效部分A1和A2之间的距离h2小于彼此之间存在所述间隔的两个相邻的第二发光层22的有效部分A2和A3之间的距离h4。由此，至少部分第二子像素组32中连续排列的至少两个第二子像素12的第二发光层22为一体结构可减小第二方向上的非发光部的面积，从而利于提高显示面板10的开口率和PPI。
例如，每个所述第一子像素11的有效部分21a的面积与每个所述第一子像素11的整个发光层21的面积的比值为17％；每个所述第二子像素12的有效部分22a的面积与每个所述第二子像素12的整个发光层22的面积的比值为21％；每个所述第三子像素13的有效部分23a的面积与每个所述第三子像素13的整个发光层23的面积的比值为30％。例如在本实施例中，第三子像素13为蓝色子像素，由于蓝色子像素的发光亮度较低，目前发蓝光的电致发光材料的寿命较短，因此将第三子像素13的有效部分23a的面积与每个所述第三子像素13的整个发光层23的面积的比值大于第一子像素(红色)和第二子像素(绿色)。
例如，在图1A所示的实施例中，如图1A中左上角的虚线框所示，位于一个第一子像素列中彼此相邻的一个第一子像素11和一个第三子像素13、以及位于与该一个第一子像素列相邻的第二子像素列中的一个第二子像素12构成一个像素101。相比于其他的像素排布方式，这样的像素排布方式使得像素排布更加紧凑，更加利于提高显示面板10的开口率和PPI；且构成一个像素的平面图形整体更加接近在第一方向的长度和第二方向的长度相等，例如更加接近正方形，利于提高整个显示面板10彩色显示的均一性，从而提高显示效果。例如，一个像素101所在的区域为正方形，以在提高显示面板10的开口率和PPI的同时，获得非常均匀的彩色显示效果。例如，第二子像素12在第二方向上的长度大于第一子像素11在第二方向上的长度，且大于第三子像素13在第二方向上的长度， 如此，可使得一个第二子像素12的长度与在第二方向上连续排列的一个第一子像素11和一个第三子像素13的长度之和基本相等，从而使一个像素101的形状规整，像素排布更加紧凑，从而利于提高显示面板10的开口率和PPI以及彩色显示的均匀性。相应于像素的排布方式，每个子像素的驱动电路的设计可参考本领域常规技术。例如，一个像素中的每个子像素通过各自的驱动电路独立驱动。
以图1A为例，第一子像素11、第二子像素12和第三子像素13构成一个像素101，这三个子像素对应的像素电路分别沿第一方向依次排列，示例性的，第一子像素11是红色子像素，第二子像素12是绿色子像素，第三子像素13是蓝色子像素，这三个子像素的像素电路按照红色、蓝色、绿色的方式依次排列，或者按照蓝色、红色、绿色的方式依次排列。这三个子像素的像素电路分别连接不同的数据线。
像素电路例如包括有源层、栅绝缘层、栅极层、层间绝缘层、源漏金属层、平坦层等，子像素的阳极通过过孔连接到像素电路。如图7A和图7B所示，对于一个像素101里的这三个子像素，他们的阳极过孔V1、V2、V3大致分布在一条沿第一方向的直线上，对于位于同一列的第一子像素11和第三子像素13，例如，在一些实施例中，如图7A，该第一子像素11和第三子像素13的有效部分位于阳极过孔V1、V2、V3所在直线的同一侧；或者，在另一些实施例中，该第一子像素11和第三子像素13的有效部分分别位于阳极过孔V1、V2、V3位于所在直线的不同侧。
或者，在其他一些示例中，如图1A左上角的点划线内圈出的部分，分别位于在第一方向上连续排列的第一子像素组31、第二子像素组32和第三子像素33中的一个第一子像素11、一个第二子像素12和一个第三子像素13构成一个像素102。当然，本公开实施例提供的显示面板中像素的排布方式不限于上述列举的方式，本公开对此不作限定。
例如，如图1A所示，在每个第一子像素组31中，连续排列的两个第一子像素11的第一发光层21的有效部分21a相对于沿第一方向延伸的第一对称轴C1(如虚线所示)对称；和/或，在每个第二子像素组32中，连续排列的两个第二子像素12的第二发光层22的有效部分22a相对于沿第一方向延伸的第二对称轴C2(如虚线所示)对称；和/或，在每个第三子像素组33中，连续排列的两个第三子像素13的第三发光层23的有效部分23a相对于沿第一方向延伸的第三对称轴C3(如虚线所示)对称。
例如，如图1A所示，在第一方向上排列且位于同行的第一子像素组31、第二子像素组32和第三子像素组33的平面形状的几何中心O1、O2和O3基本位于沿第一方向延伸的同一直线上。当然，不仅限于连续排列的第一子像素11、第二子像素12和第三子像素13的几何中心基本位于沿第一方向延伸的同一直线上，例如位于同行的全部的第一子像素11、第二子像素12和第三子像素13的几何中心均基本位于沿第一方向延伸的同一直线上。这种情况下，例如，对于在第一方向上排列且位于同行的第一子像素组31、第二子像素组32和第三子像素组33，第一对称轴C1、第二对称轴C2和第三对称轴C3重合。
例如，第二发光层22的有效部分22a具有与第一发光层21和第三发光层23的有效 部分具有相同方向的对称轴，或者，第二发光层22的有效部分22a不具有与发光层的有效部分相同方向的对称轴。
例如，每个第一子像素组31中，每个第一子像素11的有效部分21a包括靠近第一对称轴C1的近边E1和远离第一对称轴C1的远边E2，每个第一子像素11的有效部分21a的近边E1的长度大于每个第一子像素11的远边E2的长度；和/或，每个第二子像素组32中，每个第二子像素12的有效部分22a包括靠近第二对称轴C2的近边F1和远离第二对称轴C2的远边F2，每个第二子像素12的有效部分22a的近边F1的长度大于每个第二子像素12的有效部分22a的远边F2的长度；和/或，每个第三子像素组31中，每个第三子像素13的有效部分23a包括靠近第三对称轴C3的近边G1和远离第三对称轴C3的远边G2，每个第三子像素13的有效部分23a的近边G1的长度大于每个第三子像素13的有效部分23a的远边G2的长度。从而，有利于使第一子像素11的有效部分21a的平面形状、第二子像素12的有效部分22a的平面形状和第三子像素13的有效部分23a的平面形状分别与上述第一发光层21整体的平面形状、第二发光层22整体的平面形状和第三发光层23整体的平面形状一致，有利于整个显示面板10的各个子像素的发光层排布的均匀性，降低制作难度。
例如，每个第一子像素组31的每个第一子像素11的有效部分21a的近边E1到第一对称轴的距离、每个第二子像素组32的每个第二子像素12的有效部分22a的近边F1到第二对称轴C2的距离、每个第三子像素组33的每个第三子像素13的有效部分23a的近边G1到第三对称轴C3的距离三者中的至少两者基本相等，例如三者均基本相等。由于第一子像素组31、第二子像素组32和第三子像素组33的形状是对称的，因此，在同每个第一子像素组31中连续排列的两个第一子像素11的有效部分21a的近边E1之间的距离h1、在同每个第二子像素组32中连续排列的两个第二子像素12的有效部分22a的近边F1之间的距离h2、以及在同每个第三子像素组33中连续排列的两个第三子像素13的有效部分23a的近边G1之间的距离h3基本相等，有利于整个显示面板10的显示色彩的均衡。
例如，第一方向为每个子像素的宽度方向，第二方向为每个子像素的长度方向；在一个像素101中，第二子像素12的有效部分的长宽比大于第三子像素13的有效部分的长宽比，且大于第一子像素11的有效部分的长宽比。第一子像素11的有效部分21a的长宽比为1:2.5～1:1，第二子像素12的有效部分22a的长宽比为9:1～2:1，第三子像素13的有效部分23a的长宽比为3:1～1:1，这种情况下，可以达到较好的紧凑排布，实现各个子像素的有效部分的均衡占比，达到较好的提高显示面板10的PPI和开口率的效果。当然三者不限于上述列举的范围。
例如，一个第二子像素12的第二发光层22在宽度方向上的宽度w2大于等于第一子像素11的第二发光层21在宽度方向上的宽度w1，且大于等于一个第三子像素13的第三发光层23在宽度方向上的宽度w3。如此设计利于显示色彩的均衡，能够获得较好的彩色 显示效果。例如该第一子像素11的第一发光层21的宽度w1、第二子像素12的第二发光层22的宽度w2a和第三子像素13的第三发光层23的宽度w3分别指第一子像素11、第二子像素12和第三子像素13在宽度方向上的最大宽度。
例如，如图1A，一个第二子像素12在宽度方向上的宽度w2b与一个第一子像素11的宽度w1的比值为1:1～1:2；一个第二子像素12的宽度w2b与一个第三子像素13的宽度w1的比值为1:1～1:2。该比值过大会造成显示色彩的失衡，该比值范围下可获得较好的彩色显示效果。类似地，例如第一子像素11的有效部分21a的平面形状、第二子像素12的有效部分22a的平面形状和第三子像素13的有效部分23a的平面形状分别与第一子像素11的第二发光层21的平面形状、第二子像素12的第二发光层22的平面形状和第三子像素13的第三发光层23的平面形状相同，此时，一个第二子像素12的有效部分22a在宽度方向上的宽度w2b与一个第一子像素11的有效部分21a的宽度w1的比值为1:1～1:2；一个第二子像素12的有效部分22a的宽度w2b与一个第三子像素13的有效部分23a的宽度w3的比值为1:1～1:2。
例如，一个包括一体结构的第二发光层的第二子像素组32在长度方向上的长度l2大于一个包括一体结构的第一发光层的第一子像素组31在长度方向上的长度l1，且大于一个包括一体结构的第三发光层的第一子像素组31在长度方向上的长度l3。例如，在至少一PPI为460或550的显示面板10中，长度l1为39.7μm，长度l2为95.4μm，长度l3为70.7μm。
如图1A所示，包括第一子像素11、第二子像素12和第三子像素13的多个像素101在第一方向上和第二方向上分别呈周期排列；在一个像素101中，第一子像素11、第二子像素12和第三子像素13在第二方向上不对齐，且第二子像素12的靠近第一子像素11和第三子像素13的边缘与第一子像素11和第三子像素13这两者的靠近第二子像素12的边缘均有交叠，也即，第二子像素12，与第一子像素11和第三子像素13这两者均接触，也即，第二子像素12，与第一子像素11和第三子像素13这两者在第一方向上均有交叠，以充分利用两列子像素之间的间隙，在该间隙中填充满子像素，减小非发光区域的面积，利于提高显示面板的PPI和开口率，且保持较好的色准度。
例如，位于同一行的多个第二子像素12在第二方向上有交叠，位于同一列的多个第二子像素12在第一方向上有交叠。
例如，第二发光层22的有效部分22a平面形状为多边形，该多边形可以包括圆角或弧形边，我们对此不做限定。
例如，第一子像素11、第二子像素12和第三子像素13中至少之一的有效发光部分的尺寸最长的方向，与第一方向或第二方向之间具有夹角，该夹角的角度大于零小于等于45度。当然，在有些实施例中，该夹角可以等于零度。如图1A所示，第一子像素11的有效发光部分21a的尺寸最长的方向D1与第一方向相同，即与第一方向的夹角为零度；第二子像素12的有效发光部分22a的尺寸最长的方向D2与第二方向的夹角θ2小于45 度；第三子像素13的有效发光部分23a的尺寸最长的方向D3与第二方向的夹角θ3小于45度。
例如，第二发光层22的有效部分22a的平面形状包括第一平行边H1和第二平行边H2，第一平行边H1平行于与该第二发光层22相邻的第一发光层21的有效部分21a的至少一条边例如边J1，第二平行边H2平行于与该第二发光层22相邻的第三发光层23的有效部分23a的至少一条边例如边J2。
例如，第二子像素12的有效部分22a在第二方向上的长度大于第一子像素11的有效部分21a在第二方向上的长度，且大于第三子像素13的有效部分23a在第二方向上的长度。例如第二子像素12在第二方向上的长度大于第一子像素11在第二方向上的长度，且大于第三子像素13在第二方向方向上的长度。
例如，当每个第一子像素11和每个第三子像素13的形状是对称的，上述图1A中距离S5等于第一平行边H1和边J1之间的距离，距离S6等于第二平行边H2之间的距离。
进一步的，第二发光层的有效部分22a的平面形状还包括第三平行边，第三平行边与该第二发光层直接相邻的第一发光层、第二发光层或第三发光层的有效部分中的至少一条边平行。
进一步的，第二发光层的有效部分22a的平面形状还包括第四平行边，第三平行边与该第二发光层直接相邻的第一发光层、第二发光层或第三发光层的有效部分中的至少一条边平行，此时第二发光层的有效部分22a的平面形状为四边形。
进一步的，第二发光层的有效部分22a的平面形状还包括第五平行边，第三平行边与该第二发光层直接相邻的第一发光层、第二发光层或第三发光层的有效部分中的至少一条边平行，此时第二发光层的有效部分22a的平面形状为五边形。
进一步的，第二发光层的有效部分22a的平面形状还包括第六平行边，第三平行边与该第二发光层直接相邻的第一发光层、第二发光层或第三发光层的有效部分中的至少一条边平行，此时第二发光层的有效部分22a的平面形状为六边形，依此类推。
直接相邻的第一发光层、第二发光层或第三发光层是指以该发光层向此第二发光层的有效部分22a连线，至少存在一条连线不会穿过其他发光层。
例如，在图1A所示的实施例中，第二发光层21的平面形状相对于沿第二方向延伸的对称轴对称，以使的显示面板10的子像素的发光层的排布对称，从而提高显示面板10的显示效果的均匀性。或者，在其他一些实施例中，第二发光层22的平面形状不具有沿第二方向延伸的对称轴。本公开对此不作限定。
例如，如图1A所示，第二发光层22位于与之相邻的两个第一子像素列中的第一发光层21和第三发光层23之间，第二发光层22的平面形状填充该相邻的两个第一子像素列中的第一发光层21和第二发光层23之间的间隔。即，连续排布的第一发光层21、第二发光层22第一发光层21的形状互补，以减小非发光区域的面积，利于提高显示面板的开口率和PPI。
例如，如图1A所示，在每个第二子像素组中，连续排列的两个第二子像素12的第二发光层22构成的一体结构的平面形状基本为哑铃形，哑铃型在第二方向上的最大长度大于其在第一方向上的最大宽度。
例如，第二子像素12的发光层的面积大于第一子像素11的发光层的面积并大于第三子像素13的发光层的面积。
例如，如图1A所示，第一子像素11的第一发光层21、第二子像素12的第二发光层22和第三子像素13的第三发光层23在第二方向上存在彼此相对的部分。即，沿第二方向画一条直线，该直线穿过第一子像素11的第一发光层21、第二子像素12的第二发光层22和第三子像素13的第三发光层23，以提高整个显示面板10中，子像素排布的紧凑度，利于提高显示面板的开口率和PPI。
例如，多个像素中任意两个连续排列的像素中的第一子像素是不同的第一子像素、多个像素中任意两个连续排列的像素中的第二子像素是不同的第二子像素，以及多个像素中任意两个连续排列的像素中的第三子像素是不同的第三子像素。如此，在进行显示时，每个像素都包括红、绿、蓝像素，不需要不借用相邻单元的子像素，避免了显示特定图形时，图形具有白边等显示缺陷。
例如，在至少一实施例中，例如在PPI为460的显示面板中，间隔S在第二方向上的尺寸S4为15μm；第一子像素11的有效部分21a的较短的边的长度d1为7.7μm，第一子像素11的有效部分21a的较长的边的长度d2为9.4μm；第三子像素13的有效部分23a的较短的边的长度d3为7.7μm，第三子像素12的有效部分23a的较长的边的长度d3为9.4μm。
图2A为本公开一实施例提供的另一种显示面板的结构示意图。图2A所示的显示面板与图1的区别于，如图2A所示，在每个第一子像素组31中，连续排列的第一子像素11的第一发光层21为一体结构；在每个第三子像素组33中，连续排列的第三子像素13的第三发光层23为一体结构；在每个第二子像素组32中，连续排列的第二子像素12的第二发光层22不是一体结构，每个第二子像素组32中，连续排列的第二子像素12的第二发光层22之间具有间隔S(非发光区域)，以使得在每个像素中，第二子像素12(例如为绿色子像素)与第一子像素11(例如为红色子像素)和第三子像素13(例如为蓝色子像素)的排布更加紧凑，距离关系更加稳定，以在显示面板的PPI和开口率的同时，提高色准度。图2A所示的实施例也可以在一定程度上达到减小非发光区域的面积，利于提高显示面板的PPI和开口率的技术效果。
图2A所示的显示面板的其他未提及的特征均与图1A所示的相同，请参考之前的描述，不再赘述。
图3A为本公开一实施例提供的又一种显示面板的结构示意图，图3B为图3A所示的显示面板的开口率与像素密度与通常的显示面板的开口率与像素密度的对比图，图3A-3B所示的显示面板与图1A的区别在于，如图3A所示，第一发光层21的平面形状、 第二发光层22的平面形状和第三发光层23的平面形状为均为矩形；第一发光层21的有效部分21a的平面形状、第二发光层22的有效部分22a的平面形状和第三发光层23的有效部分23a的平面形状为均为矩形。图3A所示的实施例也可以在一定程度上达到减小非发光区域的面积，利于提高显示面板的PPI和开口率的技术效果。如图3B所示，在同等PPI的条件下，像素总开口率AR可提升了52％，对应使用寿命提高11％以上。在同等开口率的情况下，PPI可提升24％。图3A所示的显示面板的其他未提及的特征均与图1A所示的相同，请参考之前的描述，不再赘述。
图4A为本公开一实施例提供的又一种显示面板的结构示意图，图4B为图4A所示的显示面板的开口率与像素密度与通常的显示面板的开口率与像素密度的对比图。图4A-4B所示的显示面板与图1A的区别在于，第一发光层21的平面形状、第二发光层22的平面形状和第三发光层23的平面形状为均为矩形；第一发光层21的有效部分21a的平面形状、第二发光层22的有效部分22a的平面形状和第三发光层23的有效部分23a的平面形状为均为矩形；并且，在每个第二子像素组32中，连续排列的第二子像素12的第二发光层22不是一体结构；每个第二子像素组32中，连续排列的第二子像素12的第二发光层22之间具有间隔S(非发光区域)，以使得在每个像素中，第二子像素12(例如为绿色子像素)与第一子像素11(例如为红色子像素)和第三子像素13(例如为蓝色子像素)的排布更加紧凑，距离关系更加稳定，以在显示面板的PPI和开口率的同时，提高色准度。图4A所示的实施例也可以在一定程度上达到减小非发光区域的面积，利于提高显示面板的PPI和开口率的技术效果，并且，如图4B所示，在同等PPI的条件下，像素总开口率可提升75％，对应使用寿命提高32％以上。在同等开口率的情况下，PPI可提升8％。图3A所示的显示面板的其他未提及的特征均与图1A所示的相同，请参考之前的描述，不再赘述。
当然，在其他实施例中，也可以是在每个第一子像素组31中，连续排列的第一子像素11的第一发光层21不是一体结构，每个第一子像素组31中，连续排列的第一子像素11的第一发光层21之间具有间隔(非发光区域)。或者，在每个第三子像素组32中，连续排列的第三子像素13的第三发光层23不是一体结构，每个第三子像素组33中，连续排列的第三子像素13的第三发光层23之间具有间隔(非发光区域)。
如图5所示，例如，第二子像素12的有效部分22a的平面形状为不规则图形。例如，至少部分第二子像素12的有效部分22a在第一方向上具有依次远离第二对称轴C2的第一宽度w21、第二宽度w22和第三宽度w23，第二宽度w22大于第一宽度w21，第三宽度w23大于第一宽度w21。例如，第三宽度w23为7.14μm，第一宽度w21为4.92μm；例如第二宽度的范围为大于4.92μm且小于7.14μm。图5所示的实施例也可以在一定程度上达到减小非发光区域的面积，利于提高显示面板的PPI和开口率的技术效果。
例如，图5所示的实施例中，显示面板的PPI为460，第一宽度w21为7.14μm，第三宽度w23为4.92μm，第二宽度w22大于4.92μm且小于等于7.14μm；间隔S在第二方 向上的尺寸S4为15μm；第一子像素11的有效部分21a的较短的边的长度d1为13.5μm，第一子像素11的有效部分21a的较长的边的长度d2为13.5μm；第三子像素13的有效部分23a的较短的边的长度d3为13.5μm，第三子像素12的有效部分23a的较长的边的长度d3为13.5μm。其他一些尺寸可具体参考图5。
图5所示的显示面板的其他未提及的特征均与图1A所示的相同，请参考之前的描述，不再赘述。
图6为本公开一实施例提供的一种与图5中像素密度不同的显示面板的结构示意图。相对于图5，在图6中，各个子像素的发光层的有效部分彼此之间的距离没有改变，但是各个子像素的发光层的有效部分的尺寸减小了。
例如，图6所示的实施例中，显示面板的PPI为550，间隔S在第二方向上的尺寸S4为15μm；第一子像素11的有效部分21a的较短的边的长度d1为7.7μm，第一子像素11的有效部分21a的较长的边的长度d2为9.4μm；第三子像素13的有效部分23a的较短的边的长度d3为7.7μm，第三子像素12的有效部分23a的较长的边的长度d3为9.4μm。
图6所示的显示面板的其他未提及的特征均与图5中的相同，请参考之前的描述，不再赘述。
例如，本公开至少一实施例提供的显示面板还包括驱动结构层，驱动结构层多个驱动电路，每个子像素包括一个驱动电路。
本公开至少一实施例还提供一种显示装置，图8为本公开一实施例提供的一种显示装置的示意图，如图8所示，该显示装置100包括本公开实施例提供的任意一种显示面板10。例如，该显示装置可以为显示器、OLED面板、OLED电视、电子纸、手机、平板电脑、笔记本电脑、数码相框、导航仪等任何具有显示功能和触控功能的产品或部件。显示装置的其他结构可参考本领域常规技术。
本公开至少一实施例还提供一种显示面板的制作方法，该制作方法包括：提供衬底基板；以及在所述衬底基板上形成多个子像素，至少部分所述子像素的每个包括发光层，其中，采用掩膜通过构图工艺形成所述多个子像素的发光层，所述掩膜包括多个掩膜开口；所述多个子像素中连续排列的至少两个子像素构成一个子像素组，在所述构图工艺中，至少部分所述子像素组中的每个子像素组的发光层是利用所述多个掩膜开口中的同一个掩膜开口形成的且材料相同。例如所述至少部分子像素组包括至少两种分别发不同颜色的光的子像素组。通常，由于工艺原因，在通过构图工艺形成同一种颜色的发光层的过程中，分别通过掩膜的不同开口形成的相邻的子像素的发光层之间存在间隔，而利用同一个开口形成的连续排列的至少两个子像素的发光层之间不存在该间隔，从而可以减小非发光区域的面积，利于提高显示面板的PPI和开口率。
例如，在至少部分子像素组的每个子像素组中，通过同一掩膜开口形成的连续排列的子像素的发光层为一体结构。
例如，多个像素的每个所包括的多个子像素包括：第一子像素11、第二子像素12和 第三子像素13。第一子像素11包括第一发光层21，第一发光层21发射第一色光；第二子像素12包括第二发光层22，第二发光层22发射第二色光；第三子像素13包括第三发光层23，第三发光层23发射第三色光，第一色光、第二色光和第三色光的颜色彼此不同。例如，第一发光层发射红光，第二发光层发射绿光，第三发光层发射蓝光。在构图工艺中，执行以下步骤中的至少之一或至少之二：利用多个掩膜开口中的同一个掩膜开口形成每个第一子像素组的第一发光层、利用多个掩膜开口中的同一个掩膜开口形成每个第二子像素组第二发光层、以及利用多个掩膜开口中的同一个掩膜开口形成每个第三子像素组的第三发光层。
图9为本公开一实施例提供的一种显示面板的制作方法过程中使用掩膜的示意图，如图9所示，例如掩膜为蒸镀掩膜，例如为金属掩膜，其包括被金属线4限定出的多个掩膜开口。多个掩膜开口包括第一掩膜开口、第二掩膜开口和第三掩膜开口。在构图工艺中，每个第一子像素组的第一发光层是利用同一个第一掩膜开口形成的，每个第二子像素组的第二发光层是利用同一个第二掩膜开口形成的，每个第三子像素组的第三发光层是利用同一个第三掩膜开口形成的，即三种颜色的连续排布的至少两个子像素的发光层均通过同一个开口形成，以达到较好的提高显示面板的PPI和开口率。第一掩膜开口、第二掩膜开口和第三掩膜开口在衬底基板1上的正投影分别与形成的每个第一子像素组的第一发光层、每个第二子像素组的第二发光层和每个第三子像素组的第三发光层基本重叠。采用该制作方法形成的显示面板可以如图1A所示，显示面板的具体特征及技术效果请参考对于图1A的描述。
例如，在另一些实施例中，在构图工艺中，每个第一子像素组的第一发光层是利用同一个第一掩膜开口形成的，多个第二掩膜开口与多个第二子像素的第二发光层一一对应，分别利用多个第二掩膜开口形成多个第二子像素的第二发光层，每个第三子像素组的第三发光层是利用同一个第三掩膜开口形成的，以达到在提高显示面板的PPI和开口率的同时，保持较高的色准度。采用该制作方法形成的显示面板可以如图2A或图4A所示，显示面板的具体特征及技术效果请参考对于图2A或图4A的描述。
例如，显示面板的制作方法还包括：在形成发光层之前，形成像素界定层，其中，像素界定层包括多个掩膜开口和限定出多个掩膜开口的主体，多个掩膜开口与多个子像素一一对应；在采用掩膜通过构图工艺形成多个子像素的发光层的过程中，像素界定层的多个掩膜开口与掩膜的多个掩膜开口一一对应，并且，像素界定层的多个掩膜开口在衬底基板上的正投影分别位于掩膜的多个掩膜开口在衬底基板上的正投影内；多个子像素的每个的发光层包括位于对应的像素界定层的掩膜开口内的有效部分，以及位于像素界定层的主体上的边缘部分，边缘部分在衬底基板上的正投影位于对应的掩膜开口在衬底基板上的正投影之外且位于对应的掩膜的掩膜开口在衬底基板上的正投影之内。形成的有效部分和边缘部分的具体结构特征请参考之前对于显示面板的实施例中的描述，在此不再赘述。
例如，本公开至少一实施例提供的显示面板的制作方法还包括：形成驱动结构层，驱 动结构层多个驱动电路，每个子像素包括一个驱动电路以被独立驱动。本公开至少一实施例提供的显示面板的制作方法还包括形成多个其他的功能层，具体请见下述实施例。
图10A为一种示例性的像素阵列的膜层结构示意图；如图10A所示，该方法具体可以包括如下步骤：
步骤1：在玻璃载板上制备衬底基板。
在一些示例性实施方式中，衬底基板10可以为柔性衬底基板，例如包括在玻璃载板上叠设的第一柔性材料层、第一无机材料层、半导体层、第二柔性材料层和第二无机材料层。第一柔性材料层、第二柔性材料层的材料采用聚酰亚胺(PI)、聚对苯二甲酸乙二酯(PET)或经表面处理的聚合物软膜等材料。第一无机材料层、第二无机材料层的材料采用氮化硅(SiNx)或氧化硅(SiOx)等，用于提高衬底基板的抗水氧能力，第一无机材料层、第二无机材料层也称之为阻挡(Barrier)层。半导体层的材料采用非晶硅(a-si)。在一些示例性实施方式中，以叠层结构PI1/Barrier1/a-si/PI2/Barrier2为例，其制备过程包括：先在玻璃载板1上涂布一层聚酰亚胺，固化成膜后形成第一柔性(PI1)层；随后在第一柔性层上沉积一层阻挡薄膜，形成覆盖第一柔性层的第一阻挡(Barrier1)层；然后在第一阻挡层上沉积一层非晶硅薄膜，形成覆盖第一阻挡层的非晶硅(a-si)层；然后在非晶硅层上再涂布一层聚酰亚胺，固化成膜后形成第二柔性(PI2)层；然后在第二柔性层上沉积一层阻挡薄膜，形成覆盖第二柔性层的第二阻挡(Barrier2)层，完成衬底基板10的制备，如图6所示。
步骤2：在衬底基板上制备驱动结构层。驱动结构层包括多个驱动电路，每个驱动电路包括多个晶体管和至少一个存储电容，例如2T1C、3T1C或7T1C设计。以三个子像素为例进行示意，且每个子像素的驱动电路仅以一个晶体管和一个存储电容为例进行示意。
在一些实施例中，驱动结构层的制备过程可以参照以下说明。以红色子像素的驱动电路的制备过程为例进行说明。
在衬底基板10上依次沉积第一绝缘薄膜和有源层薄膜，通过构图工艺对有源层薄膜进行构图，形成覆盖整个衬底基板010的第一绝缘层011，以及设置在第一绝缘层011上的有源层图案，有源层图案至少包括第一有源层。
随后，依次沉积第二绝缘薄膜和第一金属薄膜，通过构图工艺对第一金属薄膜进行构图，形成覆盖有源层图案的第二绝缘层012，以及设置在第二绝缘层012上的第一栅金属层图案，第一栅金属层图案至少包括第一栅电极和第一电容电极。
随后，依次沉积第三绝缘薄膜和第二金属薄膜，通过构图工艺对第二金属薄膜进行构图，形成覆盖第一栅金属层的第三绝缘层013，以及设置在第三绝缘层013上的第二栅金属层图案，第二栅金属层图案至少包括第二电容电极，第二电容电极的位置与第一电容电极的位置相对应。
随后，沉积第四绝缘薄膜，通过构图工艺对第四绝缘薄膜进行构图，形成覆盖第二栅金属层的第四绝缘层014图案，第四绝缘层014上开设有至少两个第一过孔，两个第一过 孔内的第四绝缘层014、第三绝缘层013和第二绝缘层012被刻蚀掉，暴露出第一有源层的表面。
随后，沉积第三金属薄膜，通过构图工艺对第三金属薄膜进行构图，在第四绝缘层014上形成源漏金属层图案，源漏金属层至少包括位于显示区域的第一源电极和第一漏电极。第一源电极和第一漏电极可以分别通过第一过孔与第一有源层连接。
显示区域的红色子像素的驱动电路中，第一有源层、第一栅电极、第一源电极和第一漏电极可以组成第一晶体管210，第一电容电极和第二电容电极可以组成第一存储电容212。在上述制备过程中，可以同时形成绿色子像素的驱动电路以及蓝色子像素的驱动电路。
在一些示例性实施方式中，第一绝缘层011、第二绝缘层012、第三绝缘层013和第四绝缘层014采用硅氧化物(SiOx)、硅氮化物(SiNx)和氮氧化硅(SiON)中的任意一种或更多种，可以是单层、多层或复合层。第一绝缘层011称之为缓冲(Buffer)层，用于提高衬底基板的抗水氧能力；第二绝缘层012和第三绝缘层013称之为栅绝缘(GI，Gate Insulator)层；第四绝缘层014称之为层间绝缘(ILD，Interlayer Dielectric)层。第一金属薄膜、第二金属薄膜和第三金属薄膜采用金属材料，如银(Ag)、铜(Cu)、铝(Al)、钛(Ti)和钼(Mo)中的任意一种或更多种，或上述金属的合金材料，如铝钕合金(AlNd)或钼铌合金(MoNb)，可以是单层结构，或者多层复合结构，如Ti/Al/Ti等。有源层薄膜采用非晶态氧化铟镓锌材料(a-IGZO)、氮氧化锌(ZnON)、氧化铟锌锡(IZTO)、非晶硅(a-Si)、多晶硅(p-Si)、六噻吩、聚噻吩等一种或多种材料，即本公开适用于基于氧化物(Oxide)技术、硅技术以及有机物技术制造的晶体管。
步骤3：在形成前述图案的衬底基板上形成平坦层。
在一些示例性实施方式中，在形成前述图案的衬底基板010上涂覆有机材料的平坦薄膜，形成覆盖整个衬底基板010的平坦(PLN，Planarization)层015，并通过掩膜、曝光、显影工艺，在显示区域的平坦层015上形成多个第二过孔。多个第二过孔内的平坦层015被显影掉，分别暴露出红色子像素的驱动电路的第一晶体管210的第一漏电极的表面、绿色子像素的驱动电路的第一晶体管的第一漏电极的表面以及蓝色颜色子像素03的驱动电路的第一晶体管的第一漏电极的表面。
步骤4：在形成前述图案的衬底基板上，形成第一电极图案。在一些示例中，第一电极为反射阳极。
在一些示例性实施方式中，在形成前述图案的衬底基板010上沉积导电薄膜，通过构图工艺对导电薄膜进行构图，形成第一电极图案。红色子像素的第一阳极213通过第二过孔与第一晶体管210的第一漏电极连接，绿色子像素2的第二阳极223通过第二过孔与绿色子像素的第一晶体管的第一漏电极连接，蓝色子像素23的第三阳极233通过第二过孔与蓝色子像素的第一晶体管的第一漏电极连接。
在一些示例中，第一电极可以采用金属材料，如镁(Mg)、银(Ag)、铜(Cu)、 铝(Al)、钛(Ti)和钼(Mo)中的任意一种或更多种，或上述金属的合金材料，如铝钕合金(AlNd)或钼铌合金(MoNb)，可以是单层结构，或者多层复合结构，如Ti/Al/Ti等，或者，是金属和透明导电材料形成的堆栈结构，如ITO/Ag/ITO、Mo/AlNd/ITO等反射型材料。
步骤5：在形成前述图案的衬底基板上，形成像素定义(PDL，Pixel Definition Layer)层图案。
在一些示例性实施例方式中，在形成前述图案的衬底基板010上涂覆像素定义薄膜，通过掩膜、曝光、显影工艺，形成像素定义层图案。如图12所示，显示区域的像素定义层30包括多个子像素定义部302，相邻子像素定义部302之间形成有多个像素开口301，多个像素开口301内的像素定义层30被显影掉，分别暴露出红色子像素的第一阳极213的至少部分表面、绿色子像素的第二阳极223的至少部分表面以及蓝色子像素的第三阳极233的至少部分表面。
在一些示例中，像素定义层30可以采用聚酰亚胺、亚克力或聚对苯二甲酸乙二醇酯等。
步骤6：在形成前述图案的衬底基板上，形成隔垫柱(PS，Post Spacer)图案。
在一些示例性实施方式中，在形成前述图案的衬底基板010上涂覆有机材料薄膜，通过掩膜、曝光、显影工艺，形成隔垫柱34图案。隔垫柱34可以作为支撑层，配置为在蒸镀过程中支撑FMM(高精度掩膜版)。在一些示例中，沿着子像素的行排布方向上，相邻两个隔垫柱34之间间隔一个重复单元，例如，隔垫柱34可以位于相邻的红色子像素和蓝色色子像素03之间。
步骤7：在形成前述图案的衬底基板上，依次形成有机功能层以及第二电极。在一些示例中，第二电极为透明阴极。发光元件可以通过透明阴极从远离衬底基板010一侧出光，实现顶发射。在一些示例中，发光元件的有机功能层包括：空穴注入层、空穴传输层、发光层以及电子传输层。
在一些示例性实施方式中，在形成前述图案的衬底基板010上采用开放式掩膜版(Open Mask)依次蒸镀形成空穴注入层241和空穴传输层242，然后采用FMM依次蒸镀形成蓝色发光层236、绿色发光层216和红色发光层226，然后采用开放式掩膜版依次蒸镀形成电子传输层243、阴极244以及光耦合层245。空穴注入层241、空穴传输层242、电子传输层243以及阴极244均为多个子像素的共通层。在一些示例中，有机功能层还可以包括：位于空穴传输层和发光层之间的微腔调节层。例如，可以在形成空穴传输层之后，采用FMM依次蒸镀形成蓝色微腔调节层、蓝色发光层、绿色微腔调节层、绿色发光层、红色微腔调节层、红色发光层。
在一些示例性实施例中，如图10A所示，由于FMM开口的限制蒸镀所形成的相邻设置的蓝色发光层236、绿色发光层216和红色发光层226之间可以存在交叠。图10B为另一种示例性的像素阵列的膜层结构示意图，由图10B可以看出的是，相邻设置的蓝色发 光层236、绿色发光层216和红色发光层226之间也可以无交叠，也就是说，通过选用不同的开口尺寸的FMM，所形成的发光层的尺寸也不同。在一些示例性实施方式中，有机功能层形成在子像素区域内，实现有机功能层与阳极连接。阴极形成在像素定义层上，并与有机功能层连接。
在一些示例性实施方式中，阴极可以采用镁(Mg)、银(Ag)、铝(Al)中的任意一种或更多种，或采用上述金属中任意一种或多种制成的合金，或者采用透明导电材料，例如，氧化铟锡(ITO)，或者，金属与透明导电材料的多层复合结构。
在一些示例性实施方式中，可以在阴极244远离衬底基板10的一侧形成光耦合层，光耦合层可以为多个子像素的共通层。光耦合层可以与透明阴极配合，起到增加光输出的作用。例如，光耦合层的材料可以采用半导体材料。然而，本实施例对此并不限定。
步骤8：在形成前述图案的衬底基板上，形成封装层。
在一些示例性实施方式中，在形成前述图案的衬底基板010上形成封装层，封装层可以包括叠设的第一封装层41、第二封装层42和第三封装层43。第一封装层41采用无机材料，在显示区域覆盖阴极244。第二封装层42采用有机材料。第三封装层43采用无机材料，覆盖第一封装层41和第二封装层42。然而，本实施例对此并不限定。在一些示例中，封装层可以采用无机/有机/无机/有机/无机的五层结构。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围根据权利要求书所界定的范围确定。

Claims (38)

  1. 一种显示面板，包括：
    衬底基板，其中，所述衬底基板上设置有多个子像素，所述多个子像素的至少部分子像素包括发光层；
    所述多个子像素中连续排列的至少两个子像素构成一个子像素组，在至少部分所述子像素组的每个子像素组中，连续排列的至少两个子像素的发光层材料相同且为一体结构；所述至少部分子像素组包括至少两种分别发不同颜色的光的子像素组。
  2. 根据权利要求1所述的显示面板，其中，所述衬底基板上设置有多个像素，所述多个像素的每个包括多个子像素，一个所述像素的多个子像素包括：
    第一子像素，包括第一发光层，其中，所述第一发光层发射第一色光；
    第二子像素，包括第二发光层，其中，所述第二发光层发射第二色光；以及
    第三子像素，包括第三发光层，其中，所述第三发光层发射第三色光，所述第一色光、所述第二色光和所述第三色光的颜色彼此不同，其中，
    至少两个所述第一子像素连续排列并构成一个第一子像素组；
    至少两个所述第二子像素连续排列并构成一个第二子像素组；
    至少两个所述第三子像素连续排列并构成一个第三子像素组；并且
    所述至少部分子像素组包括所述第一子像素组、所述第二子像素组和所述第三子像素组三者中的至少两者。
  3. 根据权利要求2所述的显示面板，其中，
    在至少部分所述第一子像素组的每个中，连续排列的所述第一子像素的第一发光层为一体结构；
    在至少部分所述第二子像素组的每个中，连续排列的所述第二子像素的第二发光层为一体结构；以及
    在至少部分所述第三子像素组的每个中，连续排列的所述第三子像素的第三发光层为一体结构。
  4. 根据权利要求3所述的显示面板，其中，在所述至少部分第一子像素组的每个中，连续排列的两个所述第一子像素的第一发光层构成的一体结构的平面形状包括六边形、八边形、椭圆形、菱形、梭形；和/或
    在所述至少部分第三子像素组的每个中，连续排列的两个所述第三子像素的第三发光层构成的一体结构的平面形状包括六边形、八边形、椭圆形、菱形、梭形。
  5. 根据权利要求2所述的显示面板，其中，
    在至少部分所述第一子像素组的每个中，连续排列的所述第一子像素的第一发光层为一体结构；
    在至少部分所述第二子像素组的每个中，连续排列的所述第二子像素的第二发光层不 是一体结构；以及
    在至少部分所述第三子像素组的每个中，连续排列的所述第三子像素的第三发光层为一体结构。
  6. 根据权利要求5所述的显示面板，其中，所述第二子像素的发光层的面积大于所述第一子像素的发光层的面积并大于第三子像素的发光层的面积。
  7. 根据权利要求3-6任一所述的显示面板，其中，所述第一子像素的第一发光层的较短的底边和与该第一子像素相邻的所述第三子像素的第三发光层的较短的底边彼此靠近且相对。
  8. 根据权利要求3-7任一所述的显示面板，还包括：
    像素界定层，包括多个开口和限定出所述多个开口的主体，其中，所述多个开口与所述多个子像素一一对应；
    在所述至少部分子像素组的每个子像素组中，每个子像素的发光层包括位于对应的所述像素界定层的开口内的有效部分，以及位于所述像素界定层的主体上的边缘部分。
  9. 根据权利要求8所述的显示面板，其中，每个所述第一子像素组中连续排列的两个所述第一子像素的有效部分彼此靠近且彼此相对的边之间的第一距离、每个所述第二子像素组中连续排列的两个所述第二子像素的有效部分彼此靠近且彼此相对的边之间的第二距离、以及每个所述第三子像素组中连续排列的两个所述第三子像素的有效部分彼此靠近且彼此相对的边之间的第三距离三者基本相等。
  10. 根据权利要求8或9所述的显示面板，其中，所述第一距离、所述第二距离和所述第三距离分别小于等于8μm。
  11. 根据权利要求8-10任一所述的显示面板，其中，所述第一子像素的有效部分的平面形状、所述第二子像素的有效部分的平面形状和所述第三子像素的有效部分的平面形状分别与所述第一发光层整体的平面形状、所述第二发光层整体的平面形状和所述第三发光层整体的平面形状一致。
  12. 根据权利要求8-11任一所述的显示面板，其中，所述至少部分第一子像素组的每个中，连续排列的所述第一子像素的每个有效部分的平面形状为梯形且连续排列两个的所述第一发光层的有效部分较长的底边彼此靠近且相对；和/或
    所述至少部分第三子像素组的每个中，连续排列的所述第三子像素的每个有效部分的平面形状为梯形且连续排列两个的所述第三发光层的有效部分较长的底边彼此靠近且相对。
  13. 根据权利要求8-11任一所述的显示面板，其中，所述第一发光层的有效部分的平面形状、所述第二发光层的有效部分的平面形状和所述第三发光层的有效部分的平面形状为均为矩形。
  14. 根据权利要求8-13任一所述的显示面板，其中，在所述至少部分子像素组的每个子像素组中，所述有效部分的边与所述边缘部分的外轮廓的边一一对应，所述有效部分 与所述边缘部分的外轮廓的每对互相对应的边彼此靠近且相对，所述有效部分与所述边缘部分的外轮廓的每对互相对应的边之间的间距小于等于9μm。
  15. 根据权利要求14所述的显示面板，其中，在所述第一子像素中、所述第二子像素中、所述第三子像素中，所述有效部分的边到所述边缘部分的外轮廓的边之间的间距相等。
  16. 根据权利要求8-15任一所述的显示面板，其中，所述像素阵列包括沿第一方向延伸的多个子像素行、沿第二方向延伸的多个第一子像素列和沿第二方向延伸的多个第二子像素列，每个所述第二子像素列位于连续排列的所述第一子像素列之间，所述第二方向与所述第一方向相交；
    每个所述第一子像素列中，所述第一子像素组与所述第三子像素组交替排列；每个所述第二子像素列中，多个所述第二子像素组依次排列；
    所述第二子像素组的第二发光层和与该第二子像素组连续排列的所述第二子像素组的第二发光层不是一体结构。
  17. 根据权利要求16所述的显示面板，其中，所述第二子像素组的第二发光层与与该第二子像素组连续排列的所述第二子像素组的第二发光层之间存在间隔；
    所述第二子像素组的一体结构的第二发光层中的相邻两个有效部分之间的距离小于彼此之间存在所述间隔的两个相邻的第二发光层的有效部分之间的距离。
  18. 根据权利要求16-17任一所述的显示面板，其中，每个所述第一子像素的有效部分的面积与每个所述第一子像素的整个发光层的面积的比值为17％；每个所述第二子像素的有效部分的面积与每个所述第二子像素的整个发光层的面积的比值为21％；每个所述第三子像素的有效部分的面积与每个所述第三子像素的整个发光层的面积的比值为30％。
  19. 根据权利要求16-18任一所述的显示面板，其中，位于一个所述第一子像素列中彼此相邻的一个第一子像素和一个第三子像素、以及位于与该一个第一子像素列相邻的所述第二子像素列中的一个第二子像素构成一个像素；或者，
    分别位于在所述第一方向上连续排列的所述第一子像素组、所述第二子像素组和所述第三子像素组中的一个第一子像素、一个第二子像素和一个第三子像素构成一个像素。
  20. 根据权利要求16-19任一所述的显示面板，其中，所述多个像素在所述第一方向上和所述第二方向上分别呈周期排列；
    在一个所述像素中，所述第一子像素、所述第二子像素和所述第三子像素在所述第二方向上不对齐，且所述第二子像素的靠近所述第一子像素和所述第三子像素的边缘与所述第一子像素和所述第三子像素这两者的靠近该第二子像素的边缘均有交叠。
  21. 根据权利要求16-20任一所述的显示面板，其中，位于同一行的多个所述第二子像素在所述第二方向上有交叠，位于同一列的多个所述第二子像素在所述第一方向上有交叠。
  22. 根据权利要求16-21任一所述的显示面板，其中，所述第一子像素、所述第二子 像素和所述第三子像素中至少之一的有效发光部分的尺寸最长的方向与所述第一方向或所述第二方向之间具有夹角，所述夹角的角度大于零小于等于45度。
  23. 根据权利要求16-22任一所述的显示面板，其中，所述第二子像素的有效部分在第二方向上的长度大于所述第一子像素的有效部分在第二方向上的长度，且大于所述第三子像素的有效部分在第二方向上的长度。
  24. 根据权利要求16-23任一所述的显示面板，其中，在每个所述第一子像素组中，连续排列的两个第一子像素的第一发光层的有效部分相对于沿第一方向延伸的第一对称轴对称；和/或
    在每个所述第二子像素组中，连续排列的两个第二子像素的第二发光层的有效部分相对于沿第一方向延伸的第二对称轴对称；和/或
    在每个所述第三子像素组中，连续排列的两个第三子像素的第三发光层的有效部分相对于沿第一方向延伸的第三对称轴对称。
  25. 根据权利要求16-24任一所述的显示面板，其中，在所述第一方向上排列且位于同行的所述第一子像素组、所述第二子像素组和所述第三子像素组的平面形状的几何中心基本位于沿第一方向延伸的同一直线上。
  26. 根据权利要求16-25任一所述的显示面板，其中，
    每个所述第一子像素组中，每个第一子像素的有效部分包括靠近所述第一对称轴的近边和远离所述第一对称轴的远边，所述每个第一子像素的有效部分的近边的长度大于所述每个第一子像素的远边的长度；和/或
    每个所述第三子像素组中，每个第三子像素的有效部分包括靠近所述第三对称轴的近边和远离所述第三对称轴的远边，所述每个第三子像素的有效部分的近边的长度大于所述每个第三子像素的有效部分的远边的长度。
  27. 根据权利要求26所述的显示面板，其中，每个所述第一子像素组的每个第一子像素的有效部分的近边到所述第二对称轴的距离、每个所述第二子像素组的每个第二子像素的有效部分的近边到所述第二对称轴的距离、每个所述第三子像素组的每个第三子像素的有效部分的近边到所述第三对称轴的距离三者中的至少两者基本相等。
  28. 根据权利要求16-27任一所述的显示面板，其中，所述第一方向为每个子像素的宽度方向，所述每个第二子像素的有效部分在所述第一方向上具有依次远离所述第二对称轴的第一宽度、第二宽度和第三宽度，所述述第二宽度大于所述第一宽度，所述第三宽度大于所述第一宽度。
  29. 根据权利要求16-28任一所述的显示面板，其中，所述第一方向为每个子像素的宽度方向，所述第二方向为每个子像素的长度方向；
    在一个所述像素中，所述第二子像素的有效部分的长宽比大于所述第三子像素的有效部分的长宽比，且大于所述第一子像素的有效部分的长宽比。
  30. 根据权利要求29所述的显示面板，其中，所述第二子像素的有效部分在所述宽 度方向上的宽度小于所述第一子像素的有效部分在所述宽度方向上的宽度，且小于第三子像素的有效部分在所述宽度方向上的宽度。
  31. 根据权利要求29或30所述的显示面板，其中，所述第二子像素在所述长度方向上的长度大于所述第一子像素在所述长度方向上的长度，且大于所述第三子像素在所述长度方向上的长度。
  32. 根据权利要求29-31任一所述的显示面板，其中，所述第一子像素的有效部分的长宽比为1:2.5～1:1，所述第二子像素的有效部分的长宽比为9:1～2:1，所述第三子像素的有效部分的长宽比为3:1～1:1。
  33. 根据权利要求16-32任一所述的显示面板，其中，所述第二发光层的有效部分的平面形状为多边形，所述第二发光层的有效部分的平面形状包括第一平行边和第二平行边，所述第一平行边平行于与该第二发光层相邻的第一发光层的有效部分的至少一条边，所述第二平行边平行于与该第二发光层相邻的第三发光层的有效部分的至少一条边。
  34. 根据权利要求16-33任一所述的显示面板，其中，所述第二发光层的有效部分具有与所述第一发光层和所述第三发光层的有效部分具有相同方向的对称轴，或者，第二发光层的有效部分不具有与第一发光层和第三发光层的有效部分相同方向的对称轴。
  35. 根据权利要求16-34任一所述的显示面板，其中，在所述第一方向上，所述第二子像素组的发光层分别和与其相邻的所述第一子像素组、所述第三子像素组的发光层相接触；在所述第二方向上，所述第一子像素组的发光层和与其相邻的第三子像素组的发光层相接触。
  36. 根据权利要求35所述的显示面板，其中，在至少一个所述第二子像素组中，连续排列的两个所述第二子像素的第二发光层构成的一体结构的平面形状在所述第一方向上具有第一尺寸、第二尺寸和第三尺寸，所述第一尺寸、所述第二尺寸和所述第三尺寸在所述第二方向上依次排布，且所述第一尺寸大于所述第二尺寸，所述第三尺寸大于所述第二尺寸，所述连续排列的两个所述第二子像素的第二发光层构成的一体结构的平面形状在所述第二方向上的最大长度大于其在所述第一方向上的最大宽度。
  37. 一种显示装置，包括根据权利要求1-36任一所述的显示面板。
  38. 一种显示面板的制作方法，包括：
    提供衬底基板；以及
    在所述衬底基板上形成多个子像素，所述多个子像素的至少部分子像素包括发光层，其中，
    采用掩膜通过构图工艺形成所述多个子像素的发光层，所述掩膜包括多个掩膜开口；
    所述多个子像素中连续排列的至少两个子像素构成一个子像素组，在所述构图工艺中，至少部分所述子像素组中的每个子像素组的发光层是利用所述多个掩膜开口中的同一个掩膜开口形成的且材料相同；所述至少部分子像素组包括至少两种分别发不同颜色的光的子像素组。
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