WO2023109136A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2023109136A1
WO2023109136A1 PCT/CN2022/108236 CN2022108236W WO2023109136A1 WO 2023109136 A1 WO2023109136 A1 WO 2023109136A1 CN 2022108236 W CN2022108236 W CN 2022108236W WO 2023109136 A1 WO2023109136 A1 WO 2023109136A1
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WO
WIPO (PCT)
Prior art keywords
pixel
pixel driving
sub
display panel
display area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/108236
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English (en)
French (fr)
Inventor
楼均辉
葛林
吴勇
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.)
Kunshan Govisionox Optoelectronics Co Ltd
Original Assignee
Kunshan Govisionox Optoelectronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Govisionox Optoelectronics Co Ltd filed Critical Kunshan Govisionox Optoelectronics Co Ltd
Priority to EP22905898.7A priority Critical patent/EP4451253A4/en
Priority to KR1020237033806A priority patent/KR102871937B1/ko
Priority to JP2023563894A priority patent/JP7664416B2/ja
Publication of WO2023109136A1 publication Critical patent/WO2023109136A1/zh
Priority to US18/460,051 priority patent/US12211436B2/en
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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G09F9/335—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • 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
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • 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
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H10K59/80515—Anodes characterised by their shape
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0465—Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen

Definitions

  • the present application relates to the field of display technology, in particular to a display panel and a display device.
  • Electronic devices such as mobile phones and tablet computers need to integrate front-facing cameras, earpieces, and infrared sensing components.
  • a notch or a hole can be made on the display screen, and external light can enter the photosensitive element located below the screen through the notch or the hole on the screen.
  • these electronic devices are not truly full-screen, and cannot be displayed in various areas of the entire screen. For example, the corresponding areas of the front cameras of these electronic devices cannot display images.
  • the present application provides a display panel and a display device, which realize that at least a part of the display panel can transmit light and display, and facilitate the under-screen integration of photosensitive components.
  • an embodiment of the present application provides a display panel, the display panel has a first display area and a second display area, the light transmittance of the first display area is greater than the light transmittance of the second display area, and the display panel includes: The pixel combination unit is located in the first display area, and the sub-pixel combination unit includes a first sub-pixel; the pixel drive unit is located in the second display area, and the pixel drive unit is electrically connected to the first sub-pixel, and the pixel drive unit includes a plurality of parallel connected first sub-pixels.
  • a pixel driving circuit is located in the first display area, and the sub-pixel combination unit includes a first sub-pixel; the pixel drive unit is located in the second display area, and the pixel drive unit is electrically connected to the first sub-pixel, and the pixel drive unit includes a plurality of parallel connected first sub-pixels.
  • an embodiment of the present application provides a display device, including the display panel provided in the foregoing embodiments.
  • the pixel driving unit of the first sub-pixel in the first display area is arranged in the second display area, which can effectively improve the light transmittance of the first display area.
  • the pixel driving unit is set to include a plurality of first pixel driving circuits connected in parallel to improve the driving capability of the pixel driving unit to the first sub-pixels in the first display area, thereby increasing the brightness of the first display area, so that the brightness of the first display area can be reduced.
  • the brightness difference between the second display area and the second display area improves the display consistency of the display panel.
  • FIG. 1 is a front view of a display panel provided by an embodiment of the present application
  • Fig. 2 is a kind of local enlargement diagram of place Q in Fig. 1;
  • Fig. 3 is another partial enlarged view of place Q in Fig. 1;
  • Fig. 4 is another kind of partial enlarged view of Q place in Fig. 1;
  • Fig. 5 is another partial enlarged view of Q place in Fig. 1;
  • FIG. 6 is an annotated diagram of a display device provided by an embodiment of the present application.
  • FIG. 7 is a schematic cross-sectional view along the D-D direction of FIG. 6 .
  • a light-transmitting display area may be provided on the above-mentioned electronic device, and a photosensitive component may be arranged on the back of the light-transmitting display area, so as to realize full-screen display of the electronic device while ensuring normal operation of the photosensitive component.
  • the pixel driving circuits corresponding to the sub-pixels in the light-transmitting display area are usually arranged around the periphery of the light-transmitting display area. Insufficient driving capability may easily cause inconsistent display brightness between the light-transmitting display area of the display panel and its surrounding area, causing display differences of the display panel and affecting the display effect.
  • An embodiment of the present application provides a display panel, and the display panel may be an organic light emitting diode (Organic Light Emitting Diode, OLED) display panel.
  • OLED Organic Light Emitting Diode
  • FIG. 1 shows a schematic top view of a display panel according to an embodiment of the present application.
  • the display panel 100 has a first display area AA1, a second display area AA2 and a non-display area NA arranged around the second display area AA2.
  • the light transmittance of the first display area AA1 is greater than that of the second display area AA2. light transmittance.
  • the light transmittance of the first display area AA1 is greater than or equal to 15%. To ensure that the light transmittance of the first display area AA1 is greater than 15%, or greater than 40%, or has a higher light transmittance, In this embodiment, the light transmittance of each functional film layer of the display panel 100 is greater than 80%, or the light transmittance of at least some of the functional film layers is greater than 90%.
  • the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2, so that the display panel 100 can integrate photosensitive components on the back of the first display area AA1 to realize, for example, a camera. and other photosensitive components are integrated under the screen, and at the same time, the first display area AA1 can display images, thereby increasing the display area of the display panel 100 and realizing a full-screen design of the display device.
  • the number of the first display area AA1 and the second display area AA2 Used to implement fingerprint recognition. Or, in some other embodiments, the number of the first display area AA1 is two, one of the first display area AA1 is used to realize the under-screen integration of the photosensitive component, and the other first display area AA1 is used to realize fingerprint recognition .
  • the driving circuit for driving the first display area AA1 is placed in the second display area AA2 .
  • the inventors found that when the driving circuit for driving the first display area AA1 is placed in the second display area AA2, the driving ability of the driving circuit to the first sub-pixels 111 in the first display area AA1 will be insufficient, resulting in the second The display brightness of the first display area AA1 is lower than the display brightness of the second display area AA2 , thereby causing display differences between the first display area AA1 and the second display area AA2 .
  • FIG. 2 is a partially enlarged view of a location Q in the display panel 100 provided by an embodiment of the present application.
  • the display panel 100 provided by the embodiment of the present application includes a sub-pixel unit 110 and a first pixel driving circuit 121 .
  • the sub-pixel unit 110 is located in the first display area AA1
  • the sub-pixel unit 110 includes a first sub-pixel 111 .
  • the pixel driving unit 120 is located in the second display area AA2 , the pixel driving unit 120 is electrically connected to the first sub-pixel 111 , and the pixel driving unit 120 includes a plurality of first pixel driving circuits 121 connected in parallel.
  • the sub-pixel unit 110 may include one first sub-pixel 111, or may include multiple first sub-pixels 111 of the same color, which is not limited here.
  • the first sub-pixel 111 may include a first electrode, a second electrode, and a light-emitting structure disposed between the first electrode and the second electrode.
  • the first electrode and the second electrode can form a potential difference, so that the light-emitting mechanism can emit light under the action of the potential difference. glow.
  • the light-emitting colors of the light-emitting structure of the first sub-pixel 111 may be the same or different.
  • the first sub-pixel 111 and the first pixel driving circuit 121 are arranged in different layers, the first electrode is arranged on the side of the first sub-pixel 111 close to the first pixel driving circuit 121 , and the first pixel driving circuit 121 is electrically connected to the first electrode.
  • the sub-pixel unit 110 includes a plurality of first sub-pixels 111 of the same color
  • the plurality of first sub-pixels 111 of the same color can be set to be electrically connected to each other
  • the first pixel driving circuit 121 and the plurality of first sub-pixels of the same color of the sub-pixel unit 110 can be electrically connected to each other.
  • the first electrode of one of the sub-pixels 111 is electrically connected, so that the circuit connection structure of the first display area AA1 can be simplified, thereby improving the light transmittance of the first display panel 100 .
  • the first pixel driving circuit 121 may include a thin film transistor, and the thin film transistor is electrically connected to the first electrode of the first sub-pixel 111 through a drain.
  • the pixel driving unit 120 may include two first pixel driving circuits 121 connected in parallel, or may include more first pixel driving circuits 121 connected in parallel, which is not limited here.
  • One pixel driving unit 120 can be set to be connected to the first sub-pixel 111 of one sub-pixel unit 110, or one pixel driving unit 120 can be set to be connected to the first sub-pixels 111 of multiple sub-pixel units 110 of the same color, that is, one
  • the pixel driving unit 120 drives one sub-pixel unit 110 , and one pixel driving unit 120 can also drive multiple sub-pixel units 110 at the same time.
  • the two first pixel driving circuits 121 connected in parallel in the pixel driving unit 120 mean that at least one signal input terminal of the two first pixel driving circuits 121 inputs the same signal, and the two first pixel driving circuits 121 At least one signal output terminal of the driving circuit 121 outputs the same signal.
  • Setting the pixel driving unit 120 to include a plurality of first pixel driving circuits 121 connected in parallel can effectively improve the driving capability of the pixel driving unit 120 , thereby increasing the brightness of the first display area AA1 .
  • the pixel driving unit 120 of the first sub-pixel 111 of the first display area AA1 is arranged in the second display area AA2, which can effectively improve the light transmittance of the first display area AA1.
  • the pixel driving unit 120 is set to include a plurality of first pixel driving circuits 121 connected in parallel to improve the driving capability of the pixel driving unit 120 to the first sub-pixel 111 of the first display area AA1, thereby increasing the brightness of the first display area AA1, thus The brightness difference between the first display area AA1 and the second display area AA2 can be reduced, and the display uniformity of the display panel 100 can be improved.
  • one sub-pixel unit 110 includes a plurality of first sub-pixels 111 of the same color, and the plurality of first sub-pixels 111 are electrically connected.
  • a plurality of first sub-pixels 111 may be connected in series or in parallel, which is not limited here.
  • the second electrodes of the plurality of first sub-pixels 111 are integrally formed, and the first electrodes of the plurality of first sub-pixels 111 are conductively connected, so that the parallel connection of the plurality of first sub-pixels 111 can be realized.
  • a plurality of first sub-pixels 111 of the same color are electrically connected, a plurality of first sub-pixels 111 of the same color can be simultaneously driven to emit light through one pixel driving unit 120, and the pixel circuit of the pixel driving unit 120 only needs to be connected with a plurality of first sub-pixels of the same color.
  • One electrical connection among 111 can realize the light emission of multiple first sub-pixels 111 of the same color in one pixel driving unit 120 .
  • the circuit structure in the first display area AA1 can be further simplified, thereby improving the light transmittance of the first display area AA1 .
  • the display panel 100 may include one sub-pixel unit 110 , or may include multiple sub-pixel units 110 .
  • the first sub-pixels 111 in different sub-pixel units 110 can emit light of the same color, or light of different colors, which can be selected according to the specific requirements of the display panel 100 , which is not limited here.
  • the display panel 100 includes a plurality of sub-pixel units 110 , and one first sub-pixel 111 of one sub-pixel unit 110 is electrically connected to one pixel driving unit 120 .
  • the display panel 100 is set to include a plurality of sub-pixel units 110, that is, a plurality of sub-pixel units 110 are set in the first display area AA1, and the first sub-pixels 111 of the plurality of sub-pixel units 110 can emit light of different colors, or can emit light of the same color , and set it according to actual needs.
  • the pixel density of the first display area AA1 can be increased, thereby improving the display effect of the first display area AA1 .
  • the first display area AA1 includes a first sub-pixel 111 that emits red light, a first sub-pixel 111 that emits blue light, and a first sub-pixel 111 that emits green light. Rich.
  • Setting a first sub-pixel 111 of a sub-pixel unit 110 is electrically connected to a pixel driving unit 120, that is, setting a pixel driving unit 120 to drive a sub-pixel unit 110 is beneficial to improving the driving of the first sub-pixel 111 by the pixel driving unit 120 ability, and is beneficial to simplify the circuit structure inside the display panel 100 .
  • the first pixel driving circuit 121 is any one of 2T1C circuit, 3T1C circuit, 3T2C circuit, 4T1C circuit, 5T1C circuit, 6T1C circuit, 7T1C circuit, 7T2C circuit and 9T1C circuit.
  • 2T1C circuit refers to the circuit including two thin film transistors (T) and one capacitor (C) in the first pixel driving circuit 121, other "3T1C circuit", “3T2C circuit”, “4T1C circuit”, " 5T1C circuit”, “6T1C circuit”, “7T1C circuit”, “7T2C circuit”, “9T1C circuit” and so on.
  • the number of the first sub-pixels 111 of the sub-pixel unit 110 may be greater than, less than or equal to the number of the first pixel driving circuits 121 of the corresponding pixel driving unit 120, which is not limited here.
  • the number of the first pixel driving circuits 121 of the pixel driving unit 120 is smaller than the number of the first sub-pixels 111 of the corresponding sub-pixel unit 110 .
  • Such setting can ensure the driving capability of the pixel driving unit 120, increase the brightness of the first display area AA1, further reduce the display difference between the first display area AA1 and the second display area AA2, and improve the display uniformity of the display panel 100. At the same time, it can The circuit structure of the pixel driving unit 120 is simplified.
  • the display panel 100 further includes a second pixel driving circuit (not shown) located in the second display area AA2, and the second pixel driving circuit is used to drive the second sub-pixels located in the second display area AA2 ( Figure not shown).
  • the number of the first pixel driving circuits 121 of the pixel driving unit 120 is equal to the number of the first sub-pixels 111 of the corresponding sub-pixel unit 110 .
  • one first pixel driving circuit 121 can drive one first sub-pixel 111 of the first display area AA1, so that the driving capability of the first pixel driving circuit 121 on the first sub-pixel 111 is the same as that of the second display area AA2.
  • the driving capability of the second pixel driving circuit in the second sub-pixel is equivalent, so while increasing the brightness of the first display area AA1, it also reduces the possibility that the brightness of the first display area AA1 is excessively higher than the brightness of the second display area AA2 performance, further reducing the brightness difference between the first display area AA1 and the second display area AA2, and improving the display uniformity of the display panel 100 .
  • the architecture of the second pixel driving circuit and the architecture of the first pixel driving circuit 121 may be the same or different, and may be selected according to specific requirements.
  • the structure of the circuit described here is the same, which means that the connection relationship of each structure in the schematic diagram of the circuit is the same, and the structure of the two circuits is the same, which does not mean that the structure of the two circuits is the same, for example, it does not represent the layout of the two circuits
  • the design structure is the same.
  • the structure of the second pixel driving circuit is the same as that of the first pixel driving circuit 121, and the structures of the capacitors and thin film transistors in the first pixel driving circuit 121 are the same as those of the corresponding capacitors and thin film transistors in the second pixel driving circuit. have the same structure.
  • the first pixel driving circuit 121 and the second pixel driving circuit may include a plurality of thin film transistors. Since the structures of the two are the same, the structure of the thin film transistors located at the same position in their respective circuit structures is the same, and in Capacitors located at the same position in the respective circuit structures are also the same. In this way, the driving capabilities of the first pixel driving circuit 121 and the second pixel driving circuit are equal.
  • the luminous brightness of a first sub-pixel 111 driven by the first pixel driving circuit 121 is also equal to the luminous brightness of a second sub-pixel driven by the second pixel driving circuit. Such setting can further ensure that the first display area AA1 and the second display area
  • the uniformity of AA2 luminous brightness improves the display uniformity of the display panel 100 .
  • FIG. 3 shows a partial enlarged view of Q in the display panel 100 provided by another embodiment of the present application.
  • the display panel 100 further includes a scanning signal line 130 disposed in the second display area AA2, and multiple first pixel driving circuits 121 of one pixel driving unit 120 are electrically connected to the same scanning signal line. 130 , the scan signal line 130 is used to input a scan signal to the first pixel driving circuit 121 .
  • the first pixel driving circuit 121 includes a thin-film transistor, and the scanning signal line 130 can be connected to the gate of the thin-film transistor to control whether the thin-film transistor is turned on, thereby controlling whether the first sub-pixel 111 of the corresponding sub-pixel unit 110 is glow.
  • a plurality of first pixel driving circuits 121 of the pixel driving unit 120 are connected to the same scanning signal line 130, so that multiple first pixel driving circuits 121 in the pixel driving unit 120 can be turned on or off at the same time, which is more convenient to control the sub-pixel unit 110's glow or not.
  • the display panel 100 further includes a data signal line 140 disposed in the second display area AA2, and multiple first pixel driving circuits 121 of one pixel driving unit 120 are electrically connected to the same data signal line 140, and the data signal line is used for The data signal is then input to the first pixel driving circuit 121 .
  • the first pixel driving circuit 121 includes a thin film transistor, and the data signal line 140 can be connected to the source or drain of the thin film transistor for inputting a data signal to the first pixel driving circuit 121 to control the first pixel driving circuit 121.
  • the luminous brightness of the pixel 111 can further simplify the circuit structure inside the display panel 100 .
  • the display panel 100 further includes a light emission control signal line located in the second display area AA2, a plurality of first pixel drive circuits 121 of one pixel drive unit 120 are electrically connected to the same light emission control signal line, and the light emission control signal line It is used for inputting a light emission control signal to the first pixel driving circuit 121 .
  • the first pixel driving circuit 121 includes a thin film transistor, and the light emission control signal line is connected to the gate of the thin film transistor for controlling the corresponding light emitting structure to emit light.
  • the multiple first pixel driving circuits 121 of one pixel driving unit 120 can be distributed in various forms, for example, they can be located in the same row or column, they can also be distributed in multiple rows and multiple columns, or they can be distributed in other irregular forms, here There is no limitation, as long as they can be connected in parallel with each other.
  • multiple first pixel driving circuits 121 of one pixel driving unit 120 are located in the same row.
  • the scanning signal line 130 can be connected to a plurality of first pixel driving circuits 121 in the same row at the same time, and the scanning signal line 130 can extend along the row direction of the first pixel driving circuits 121, and in order to connect a plurality of first pixel driving circuits 121 in the same row
  • the driving circuit 121 and the data signal line 140 have multiple branches.
  • the data signal lines 140 may also be extended along the row direction of the plurality of first pixel driving circuits 121. a fork.
  • multiple first pixel driving circuits 121 of one pixel driving unit 120 are located in the same column.
  • the scanning signal line 130 is connected to multiple first pixel driving circuits 121 in the same column at the same time, and the data signal line 140 can extend along the column direction of the first pixel driving circuits 121, and in order to connect multiple first pixel driving circuits 121 in the same column In the circuit 121, the scanning signal line 130 has multiple branches.
  • a plurality of first pixel driving circuits 121 of one pixel driving unit 120 are arranged in the same column, which facilitates the parallel connection among the plurality of first pixel driving circuits 121, and also facilitates the electrical connection between the external control signal line and the first pixel driving circuit 121 , and then transmit the driving signal to the first pixel driving circuit 121 .
  • Such an arrangement can simplify the circuit structure inside the display panel 100 .
  • a plurality of first pixel driving circuits 121 of one pixel driving unit 120 are distributed in multiple rows and multiple columns.
  • the scanning signal lines 130 can be distributed along the row direction of the plurality of first pixel driving circuits 121
  • the data signal lines 140 can be distributed along the column direction of the plurality of first pixel driving circuits 121
  • the number of branches of the scanning signal lines 130 is related to the number of branches.
  • the number of rows of the first pixel driving circuits 121 is the same, and the number of forks of the data signal lines 140 is the same as the number of columns of the plurality of first pixel driving circuits 121 .
  • Such setting can effectively reduce the number of bifurcations of the data signal line 140 .
  • the number of rows and columns of the plurality of first pixel driving circuits 121 in one pixel driving unit 120 can be reasonably distributed according to the circuit arrangement space inside the display panel 100 .
  • the arrangement of the first pixel driving circuits 121 of different pixel driving units 120 in the same display panel 100 may be the same or different, and may be specifically set according to the circuit arrangement inside the display panel 100 , which is not limited here.
  • the driving circuit and the first sub-pixels 111 electrically connected to it can be arranged in parallel, or the driving circuit and the first sub-pixels 111 electrically connected to it can be arranged in a staggered row.
  • the distribution needs to be selected according to the specific situation, and there is no limitation here.
  • At least part of the first pixel driving circuit 121 and the first sub-pixels 111 electrically connected thereto are distributed in a row.
  • connection lines between the two can extend along the row direction without bifurcation or bending.
  • Such arrangement can further simplify the connection circuit between the driving circuit and the first sub-pixel 111 , and the connection circuit between the two is simple, and the manufacturing process can be further simplified during the manufacturing process of the display panel 100 .
  • the multiple first sub-pixels 111 may be electrically connected through transparent conductive wires, or may be electrically connected through non-transparent wires, which are not described here. limit.
  • multiple first sub-pixels 111 of the same color in one sub-pixel unit 110 are electrically connected through transparent wires.
  • the transparent wire can be made of one or both of indium tin oxide and indium zinc oxide.
  • the plurality of first sub-pixels 111 are electrically connected through transparent wires, which can further increase the light transmittance of the first display area AA1.
  • the plurality of first pixel driving circuits 121 of one pixel driving unit 120 are electrically connected to one first sub-pixel 111 of one corresponding sub-pixel unit 110 through transparent wires respectively.
  • the light transmittance of the first display area AA1 can be improved while improving the driving capability of the first sub-pixel 111 .
  • multiple first pixel driving circuits 121 of one pixel driving unit 120 are connected in parallel and electrically connected to one first sub-pixel 111 in one corresponding pixel unit 110 through transparent wires. Such an arrangement can improve the light transmittance of the first display area AA1 while simplifying the internal circuit structure of the display panel 100 .
  • the first sub-pixel 111 includes a first electrode, a first light emitting structure on the first electrode, and a second electrode on the first light emitting structure.
  • the first electrode can be an anode
  • the second electrode can be a cathode
  • the light emitting structure emits light under the action of the potential difference between the first electrode and the second electrode
  • the corresponding display panel 100 is an OLED display panel, which improves the display effect.
  • the first electrodes of adjacent first sub-pixels 111 of the same color in one pixel unit 110 are electrically connected through transparent wires. Since the first sub-pixels 111 can share a second electrode, that is, the second electrodes of adjacent first sub-pixels 111 of the same color in a pixel unit 110 are electrically connected, and the first electrodes are electrically connected through transparent wires, in realizing a
  • the parallel connection of adjacent first sub-pixels 111 of the same color in the pixel unit 110 is also conducive to improving the light transmittance of the first display area AA1.
  • the first electrodes of multiple first sub-pixels 111 of the same color in one sub-pixel unit 110 are sequentially connected through transparent wires. electrical connection. With such an arrangement, the light transmittance of the first display area AA1 can be improved while realizing the parallel connection of a plurality of first sub-pixels 111 in one sub-pixel unit 110 .
  • the first electrodes of a plurality of first subpixels 111 that emit light of the same color in one subpixel unit 110 are electrically connected sequentially through transparent wires, and are wound around at least one of the electrodes that emit different colors. light from the outside of the first sub-pixel 111.
  • the sub-pixels 111 of different luminescent colors are arranged at intervals, which is beneficial to increase the pixel density of the first display area AA1 and make the first display area AA1 have a better display effect.
  • a plurality of first pixel driving circuits 121 of a pixel driving unit 120 are connected in parallel through a transparent wire or a non-transparent wire, and are connected to a corresponding sub-pixel unit 110 through a transparent wire or a non-transparent wire after collection.
  • One first sub-pixel 111 is electrically connected. Such an arrangement can improve the driving capability of the pixel driving unit 120 to the corresponding sub-pixel unit 110 .
  • a second pixel driving circuit may or may not be provided between two adjacent first pixel driving circuits 121 provided in one pixel driving unit 120 , which is not limited here.
  • n second pixel driving circuits are arranged between two adjacent first pixel driving circuits 121 of one pixel driving unit 120 , where n is a natural number greater than 1.
  • n is a natural number from 2 to 8. Such setting facilitates the arrangement of circuits inside the display panel 100 .
  • one pixel driving unit 120 is evenly distributed in the second display area AA2 as a plurality of first pixel driving circuits 121 connected in parallel. Such an arrangement is more conducive to the wiring arrangement in the second display area AA2 , and also facilitates the manufacture of the pixel driving unit 120 .
  • a plurality of first pixel driving circuits 121 connected in parallel in one pixel driving unit 120 are arranged in an array in the second display area AA2, and adjacent first pixel driving circuits 121 are arranged in the first direction or the second direction.
  • the numbers of the second pixel driving circuits in the two directions are equivalent.
  • a plurality of first pixel driving circuits 121 connected in parallel in one pixel driving unit 120 are arranged in an array in the second display area AA2, and adjacent first pixel driving circuits 121 are arranged in the first direction or
  • the number of second pixel driving circuits in the second direction is m, and m is a natural number greater than 1.
  • the second pixel driving circuit can be arranged using the gap between the adjacent first pixel driving circuits 121 , which can improve the driving capability of the pixel driving unit 120 to the sub-pixel unit 110 .
  • m is a natural number from 2 to 8. Such setting facilitates the arrangement of circuits inside the display panel 100 .
  • the first direction and the second direction may be two intersecting directions, for example, the first direction is a row direction, and the second direction is a column direction, that is, the first direction and the second direction are perpendicular to each other.
  • Such arrangement facilitates the circuit arrangement of the first pixel driving circuit 121 in the pixel driving unit 120 .
  • the transparent wire can be arranged in a straight line or a curved line in the first display area AA1 , and its width can be selected according to the specific setting position.
  • the trace of the transparent wire in the first display area AA1 is a curve or a straight line.
  • the width of the transparent wire is equal or non-equal width. That is to say, there is no limitation on the uniformity of the track and the width of the transparent wire, as long as the electrical connection between the first sub-pixels 111 of the same color can be realized.
  • the shape of the first electrode is not limited, as long as it can cooperate with the second electrode to make the light emitting structure emit light.
  • the outer contour of the first electrode in the orthographic projection of the display panel 100 is any one of the following shapes: drop shape, circle, rectangle, ellipse, rhombus, semicircle or semiellipse. With such an arrangement, light emission of the display panel 100 can be realized.
  • the proportion of the area occupied by the first electrodes in the first display area AA1 is not limited. In some embodiments, the total area of the first electrodes in the first display area AA1 accounts for 8% to 23% of the area of the first display area AA1 . With such an arrangement, while realizing the display function of the first display area AA1 , it is also beneficial to increase the light transmittance of the first display area AA1 .
  • FIG. 6 shows a schematic structural view of a display device 10 provided by an embodiment of the present application
  • FIG. 7 is a schematic cross-sectional view along D-D in FIG. 6 .
  • the embodiment of the present application further provides a display device 10 , as shown in FIG. 6 and FIG. 7 , the display device 10 includes the display panel 100 provided in any one of the above embodiments.
  • the display panel 100 includes a first display area AA1 and a second display area AA2, and the light transmittance of the first display area AA1 is greater than that of the second display area AA2.
  • the display panel 100 includes a first surface S1 and a second surface S2 opposite to each other, wherein the first surface S1 is a display surface.
  • the display device 10 further includes a photosensitive component 200 located on the second surface S2 side of the display panel 100 , and the photosensitive component corresponds to the position of the first display area AA1 .
  • the photosensitive component 200 may be an image acquisition device for acquiring external image information.
  • the photosensitive component 200 is a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) image acquisition device, and in some other embodiments, the photosensitive component 200 can also be a charge-coupled device (Charge-coupled Device, CCD) image acquisition devices and other forms of image acquisition devices.
  • CMOS complementary Metal Oxide Semiconductor
  • CCD Charge-coupled Device
  • the photosensitive component 200 is not limited to an image acquisition device.
  • the photosensitive component 200 can also be an infrared sensor, a proximity sensor, an infrared lens, a flood sensor, an ambient light sensor, and a dot matrix projector.
  • the display device 10 may also integrate other components on the second surface S2 side of the display panel 100 , such as an earpiece, a speaker, and the like.
  • the pixel driving unit 120 is set to include a plurality of first pixel driving circuits 121 connected in parallel to jointly drive the first sub-pixel 111 of the first display area AA1.
  • the driving capability of the first sub-pixel 111 in the first display area AA1 ensures the luminance of the first display area AA1 and reduces the brightness difference between the first display area AA1 and the second display area AA2.

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Abstract

一种显示面板（100）及显示装置（10），显示面板（100）具有第一显示区（AA1）和第二显示区（AA2），第一显示区（AA1）的透光率大于第二显示区（AA2）的透光率。显示面板（100）包括位于第一显示区（AA1）的子像素单元（110）和位于第二显示区（AA2）的像素驱动单元（120）。子像素单元（110）包括第一子像素（111），像素驱动单元（120）与第一子像素（111）电连接，像素驱动单元（120）包括多个并联的第一像素驱动电路（121）。通过像素驱动单元（120）包括多个并联的第一像素驱动电路（121），提高像素驱动单元（120）对第一显示区（AA1）的第一子像素（111）的驱动能力，进而提高第一显示区（AA1）的亮度，如此可以降低第一显示区（AA1）和第二显示区（AA2）的亮度差异，提高显示面板（100）的显示一致性。

Description

显示面板及显示装置
相关申请的交叉引用
本申请要求享有于2021年12月15日提交的名称为“显示面板及显示装置”的中国专利申请第202123155370.7号的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及显示技术领域，具体涉及一种显示面板及显示装置。
背景技术
随着电子设备的快速发展，用户对屏占比的要求越来越高，使得电子设备的全面屏显示受到业界越来越多的关注。
电子设备如手机、平板电脑等需要集成诸如前置摄像头、听筒以及红外感应元件等。相关技术中，可在显示屏上开槽(Notch)或开孔，外界光线可通过屏幕上的开槽或开孔进入位于屏幕下方的感光元件。但是这些电子设备不是真正意义上的全面屏，并不能在整个屏幕的各个区域进行显示，例如这些电子设备的前置摄像头对应区域不能显示画面。
发明内容
本申请提供一种显示面板及显示装置，实现显示面板的至少部分区域可透光且可显示，便于感光组件的屏下集成。
第一方面，本申请实施例提供一种显示面板，显示面板具有第一显示区和第二显示区，第一显示区的透光率大于第二显示区的透光率，显示面板包括：子像素组合单元，位于第一显示区，子像素组合单元包括第一子像素；像素驱动单元，位于第二显示区，像素驱动单元与第一子像素电连接，像素驱动单元包括多个并联的第一像素驱动电路。
另一方面，本申请实施例提供一种显示装置，包括上述实施例提供的显示面板。
本申请实施例提供的显示面板和显示装置，将第一显示区的第一子像素的像素驱动单元设置在第二显示区，可以有效地提高第一显示区的透光率。且设置像素驱动单元包括多个并联的第一像素驱动电路，提高像素驱动单元对第一显示区的第一子像素的驱动能力，进而提高第一显示区的亮度，如此可以降低第一显示区和第二显示区的亮度差异，提高显示面板的显示一致性。
附图说明
下面将参考附图来描述本申请示例性实施例的特征、优点和技术效果。在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例绘制。
图1为本申请实施例提供的一种显示面板的主视图；
图2为图1中Q处的一种局部放大图；
图3为图1中Q处的另一中局部放大图；
图4为图1中Q处的又一种局部放大图；
图5为图1中Q处的再一种局部放大图；
图6为本申请实施例提供的显示装置的注释图；
图7为图6沿D-D方向的剖视示意图。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例。在下面的详细描述中，提出了许多具体细节，以便提供对本申请的全面理解。但是，对于本领域技术人员来说很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请的更好的理解。在附图和下面的描述中，至少部分的公知结构和技术没有被示出，以便避免对本申请造成不必要的 模糊；并且，为了清晰，可能夸大了部分结构的尺寸。此外，下文中所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。
在诸如手机和平板电脑等电子设备上，需要在设置显示面板的一侧集成诸如前置摄像头、红外光传感器、接近光传感器等感光组件。在一些实施例中，可以在上述电子设备上设置透光显示区，将感光组件设置在透光显示区背面，在保证感光组件正常工作的情况下，实现电子设备的全面屏显示。
为了提高透光显示区的透光率，通常将透光显示区内子像素对应的像素驱动电路设置在透光显示区的周边，然而，一些情况下，像素驱动电路对透光显示区内子像素的驱动能力不足，易造成显示面板的透光显示区与其周边区域的显示亮度不一致，引起显示面板的显示差异，影响显示效果。
有鉴于此，本申请实施例提供一种显示面板及显示装置，以下将结合附图对显示面板及显示装置的各实施例进行说明。
本申请实施例提供一种显示面板，该显示面板可以是有机发光二极管(Organic Light Emitting Diode，OLED)显示面板。
图1示出根据本申请一种实施例的显示面板的俯视示意图。
如图1所示，显示面板100具有第一显示区AA1、第二显示区AA2和围绕第二显示区AA2设置的非显示区NA，第一显示区AA1的透光率大于第二显示区AA2的透光率。
在一些实施例中，第一显示区AA1的透光率大于或者等于15％，为确保第一显示区AA1的透光率大于15％，或者大于40％，或者具有更高的透光率，本实施例中显示面板100的各个功能膜层的透光率均大于80％，或者至少部分功能膜层的透光率大于90％。
根据本申请实施例的显示面板100，第一显示区AA1的透光率大于第二显示区AA2的透光率，使得显示面板100在第一显示区AA1的背面可以集成感光组件，实现例如摄像头等感光组件的屏下集成，同时第一显示 区AA1能够显示画面，提高显示面板100的显示面积，实现显示装置的全面屏设计。
第一显示区AA1和第二显示区AA2的个数设置方式有多种，例如第一显示区AA1和第二显示区AA2的个数均为1个，用于实现感光组件的屏下集成或者用于实现指纹识别。或者，在另一些实施例中，第一显示区AA1的个数为两个，其中一第一显示区AA1用于实现感光组件的屏下集成，另一第一显示区AA1用于实现指纹识别。
在一些实施例中，为了提高第一显示区AA1的透光率，会将用于驱动第一显示区AA1的驱动电路放置于第二显示区AA2。发明人发现，当将用于驱动第一显示区AA1的驱动电路放置于第二显示区AA2时，会出现驱动电路对第一显示区AA1内的第一子像素111的驱动能力不足，造成第一显示区AA1的显示亮度比第二显示区AA2的显示亮度低，进而引起第一显示区AA1和第二显示区AA2的显示差异。
请一并参阅图2，图2为本申请一实施例提供的显示面板100中Q处的局部放大图。
如图1和图2所示，本申请实施例提供的显示面板100包括子像素单元110和第一像素驱动电路121。子像素单元110位于第一显示区AA1，子像素单元110包括第一子像素111。像素驱动单元120位于第二显示区AA2，像素驱动单元120与第一子像素111电连接，像素驱动单元120包括多个并联的第一像素驱动电路121。
具体地，子像素单元110可以包括一个第一子像素111，也可以包括多个同色的第一子像素111，这里不做限制。
第一子像素111可以包括第一电极、第二电极以及设置于第一电极和第二电极之间的发光结构，第一电极和第二电极能够形成电势差，以使发光机构在电势差的作用下发光。对于不同的子像素单元110，第一子像素111的发光结构的发光颜色可以相同，也可以不同。
第一子像素111和第一像素驱动电路121不同层设置，第一电极设置于第一子像素111靠近第一像素驱动电路121的一侧，第一像素驱动电路121与第一电极电连接。在子像素单元110包括多个同色第一子像素111 的实施例中，可以设置多个同色第一子像素111相互电连接，第一像素驱动电路121与子像素单元110的多个同色第一子像素111中的一个的第一电极电连接，如此设置，可以简化第一显示区AA1的电路连接结构，进而提高第一显示面板100的透光率。
第一像素驱动电路121可以包括薄膜晶体管，薄膜晶体管通过漏极与第一子像素111的第一电极电连接。
像素驱动单元120可以包括两个并联的第一像素驱动电路121，也可以包括更多个相互并联的第一像素驱动电路121，这里不做限制。可以设置一个像素驱动单元120与一个子像素单元110的第一子像素111连接，也可以设置一个像素驱动单元120与多个同色的子像素单元110的第一子像素111连接，即可以使一个像素驱动单元120驱动一个子像素单元110，也可以使一个像素驱动单元120同时驱动多个子像素单元110。
在一些实施例中，像素驱动单元120中的两个并联的第一像素驱动电路121是指该两个第一像素驱动电路121的至少一个信号输入端输入同一信号，且该两个第一像素驱动电路121的至少一个信号输出端输出同一信号。
设置像素驱动单元120包括多个并联的第一像素驱动电路121，可以有效地提高像素驱动单元120的驱动能力，进而提高第一显示区AA1的亮度。
根据本申请实施例提供的显示面板100，将第一显示区AA1的第一子像素111的像素驱动单元120设置在第二显示区AA2，可以有效地提高第一显示区AA1的透光率。且设置像素驱动单元120包括多个并联的第一像素驱动电路121，提高像素驱动单元120对第一显示区AA1的第一子像素111的驱动能力，进而提高第一显示区AA1的亮度，如此可以降低第一显示区AA1和第二显示区AA2的亮度差异，提高显示面板100的显示一致性。
在一些实施例中，一个子像素单元110包括多个同色的第一子像素111，多个第一子像素111电连接。
多个第一子像素111可以串联连接，也可以并联连接，这里不做限 制。示例性地，多个第一子像素111的第二电极一体成型设置，多个第一子像素111的第一电极导电连接，即可实现多个第一子像素111的并联连接。
设置多个同色第一子像素111电连接，则可以通过一个像素驱动单元120同时驱动多个同色第一子像素111发光，且像素驱动单元120的像素电路只需要与多个同色第一子像素111中的一个电连接，即可实现一个像素驱动单元120的多个同色第一子像素111的发光。如此设置，可以进一步简化第一显示区AA1内的电路结构，进而提高第一显示区AA1的透光率。
显示面板100可以包括一个子像素单元110，也可以包括多个子像素单元110。不同的子像素单元110中的第一子像素111可以发射相同颜色的光，也可以发不同颜色的光，可以根据显示面板100的具体需求进行选取，这里不做限制。
在一些实施例中，显示面板100包括多个子像素单元110，一个子像素单元110的一个第一子像素111电连接一个像素驱动单元120。
设置显示面板100包括多个子像素单元110，即在第一显示区AA1设置多个子像素单元110，多个子像素单元110的第一子像素111可以发射不同颜色的光，也可以发射相同颜色的光，根据实际需要进行设置。如此设置，可以提高第一显示区AA1的像素密度，进而提高第一显示区AA1的显示效果。示例性地，第一显示区AA1包括发射红光的第一子像素111、发射蓝光的第一子像素111以及发射绿光的第一子像素111，如此，第一显示区AA1的发光色彩更加丰富。设置一个子像素单元110的一个第一子像素111电连接一个像素驱动单元120，即设置一个像素驱动单元120驱动一个子像素单元110，有利于提高像素驱动单元120对第一子像素111的驱动能力，且有利于简化显示面板100内部的电路结构。
在一些实施例中，第一像素驱动电路121为2T1C电路、3T1C电路、3T2C电路、4T1C电路、5T1C电路、6T1C电路、7T1C电路、7T2C电路以及9T1C电路中的任一者。本文中，“2T1C电路”指第一像素驱动电路121中包括2个薄膜晶体管(T)和1个电容(C)的电路，其它“3T1C电 路”、“3T2C电路”、“4T1C电路”、“5T1C电路”、“6T1C电路”、“7T1C电路”、“7T2C电路”、“9T1C电路”等依次类推。
子像素单元110的第一子像素111的数量可以大于、小于或者等于对应的像素驱动单元120的第一像素驱动电路121的数量，这里不做限制。
在一些实施例中，像素驱动单元120的第一像素驱动电路121的数量小于对应的子像素单元110的第一子像素111的数量。
如此设置可以在保证像素驱动单元120的驱动能力、提高第一显示区AA1的亮度，进而降低第一显示区AA1和第二显示区AA2的显示差异，提高显示面板100的显示均一性，同时可以简化像素驱动单元120的线路结构。
在一些实施例中，显示面板100还包括位于第二显示区AA2的第二像素驱动电路(图未示出)，第二像素驱动电路用于驱动位于第二显示区AA2的第二子像素(图未示出)。
在另一些实施例中，像素驱动单元120的第一像素驱动电路121的数量等于对应的子像素单元110的第一子像素111的数量。
如此设置，可以实现平均一个第一像素驱动电路121对应驱动一个第一显示区AA1的第一子像素111，使得第一像素驱动电路121对第一子像素111的驱动能力与第二显示区AA2内第二像素驱动电路对第二子像素的驱动能力相当，如此在提高第一显示区AA1的亮度的同时，又降低了第一显示区AA1亮度过度高于第二显示区AA2的亮度的可能性，进一步降低第一显示区AA1和第二显示区AA2的亮度差异，提高显示面板100的显示均一性。
第二像素驱动电路的架构和第一像素驱动电路121的架构可以相同也可以不相同，可以根据具体需求进行选取。这里所述的电路的架构相同，是指电路的原理图中各结构的连接关系相同，两个电路的架构相同，并不代表两个电路的结构相同，例如，并不代表两个电路的版图设计结构相同。
在一些实施例中，第二像素驱动电路与第一像素驱动电路121的架构相同，且第一像素驱动电路121中的电容和薄膜晶体管的结构与第二像素 驱动电路中对应的电容和薄膜晶体管的结构相同。
具体地，第一像素驱动电路121和第二像素驱动电路可以包括多个薄膜晶体管，由于二者的架构相同，则二者在各自的电路架构中位于相同位置的薄膜晶体管的结构相同，且在各自电路架构中位于相同位置的电容也相同。如此设置，第一像素驱动电路121和第二像素驱动电路的驱动能力相等。第一像素驱动电路121驱动一个第一子像素111的发光亮度与第二像素驱动电路驱动一个第二子像素的发光亮度也相等，如此设置，可以进一步保证第一显示区AA1和第二显示区AA2发光亮度的一致性，提高显示面板100的显示均一性。
图3示出了本申请另一实施例提供的显示面板100中Q处的局部放大图。
在一些实施例中，如图3所示，显示面板100还包括设置于第二显示区AA2的扫描信号线130，一个像素驱动单元120的多个第一像素驱动电路121电连接同一扫描信号线130，扫描信号线130用于向第一像素驱动电路121输入扫描信号。
在一些实施例中，第一像素驱动电路121包括薄膜晶体管，扫描信号线130可以与薄膜晶体管的栅极连接，以控制薄膜晶体管是否开启，进而控制对应子像素单元110的第一子像素111是否发光。
设置像素驱动单元120的多个第一像素驱动电路121连接同一扫描信号线130，可以实现像素驱动单元120中的多个第一像素驱动电路121同时开启，或者同时关闭，更加便于控制子像素单元110的发光与否。
在一些实施例中，显示面板100还包括设置于第二显示区AA2的数据信号线140，一个像素驱动单元120的多个第一像素驱动电路121电连接同一数据信号线140，数据信号线用于向第一像素驱动电路121输入数据信号。
在一些实施例中，第一像素驱动电路121包括薄膜晶体管，数据信号线140可以与薄膜晶体管的源极或漏极连接，用于向第一像素驱动电路121输入数据信号，以控制第一子像素111的发光亮度。如此设置，可以进一步简化显示面板100内部的电路结构。
在另一些实施例中，显示面板100还包括位于第二显示区AA2的发光控制信号线，一个像素驱动单元120的多个第一像素驱动电路121电连接同一发光控制信号线，发光控制信号线用于向第一像素驱动电路121输入发光控制信号。
具体地，在一些实施例中，第一像素驱动电路121包括薄膜晶体管，发光控制信号线与薄膜晶体管的栅极连接，用于控制对应的发光结构发光。
一个像素驱动单元120的多个第一像素驱动电路121可以由多种分布形式，比如，可以位于同一行或者同一列，也可以呈多行多列分布，也可以呈其它不规则形式分布，这里不做限制，只要能够实现相互并联即可。
在一些实施例中，如图3所示，一个像素驱动单元120的多个第一像素驱动电路121位于同一行。
如此，可以将扫描信号线130同时连接同一行的多个第一像素驱动电路121，扫描信号线130可以沿第一像素驱动电路121的行方向延伸，而为了连接同一行的多个第一像素驱动电路121，数据信号线140会存在多个分叉。在另一些实施例中，也可以将数据信号线140沿多个第一像素驱动电路121的行方向延伸，在这种情况下，数据信号线140没有分叉，而扫描信号线130会存在多个分叉。
设置一个像素驱动单元120的多个第一像素驱动电路121位于同一行，便于多个第一像素驱动电路121之间的并联连接，也便于外部控制信号线与第一像素驱动电路121的电连接，进而向第一像素驱动电路121传输驱动信号。如此设置，进一步简化显示面板100内部的线路结构。
在另一些实施例中，一个像素驱动单元120的多个第一像素驱动电路121位于同一列。
如此设置，扫描信号线130同时连接同一列的多个第一像素驱动电路121，数据信号线140可以沿第一像素驱动电路121的列方向延伸，而为了连接同一列的多个第一像素驱动电路121，扫描信号线130会存在多个分叉。
设置一个像素驱动单元120的多个第一像素驱动电路121位于同一 列，便于多个第一像素驱动电路121之间的并联连接，也便于外部控制信号线与第一像素驱动电路121的电连接，进而向第一像素驱动电路121传输驱动信号。如此设置，能够简化显示面板100内部的线路结构。
在一些实施例中，如图4所示，一个像素驱动单元120的多个第一像素驱动电路121呈多行多列分布。
如此，扫描信号线130可以沿多个第一像素驱动电路121的行方向分布，数据信号线140可以和多个第一像素驱动电路121的列方向分布，扫描信号线130的分叉数与多个第一像素驱动电路121的行数相同，数据信号线140的分叉数与多个第一像素驱动电路121的列数相同。如此设置，可以有效地降低数据信号线140的分叉数。如此设置，可以根据显示面板100内部的电路排布空间，合理分布一个像素驱动单元120的多个第一像素驱动电路121的行数和列数。
同一显示面板100内不同像素驱动单元120的第一像素驱动电路121的排布方式可以相同，也可以不相同，可以根据显示面板100内部的电路排布进行具体设置，这里不做限制。
在进行显示面板100内电路结构设计时，可以根据具体空间需要，设置驱动电路和与其电连接的第一子像素111同行分布，也可以设置驱动电路和与其电连接的第一子像素111错行分布，需要根据具体情况进行选取，这里不做限制。
在一些实施例中，至少部分第一像素驱动电路121和与其电连接的第一子像素111同行分布。
可以理解的是，设置第一驱动电路121和与其电连接的第一子像素111同行分布，则二者的连接线路可以在二者之间沿行方向延伸，而不必出现分叉或者弯折。如此设置，可以进一步简化驱动电路和第一子像素111之间连接线路，且二者连接线路简单，在显示面板100制作过程中也可以进一步简化制作工艺。
在子像素单元110包括多个同色第一子像素111的实施例中，多个第一子像素111可以通过透明的导电线实现电连接，也可以通过非透明的导线实现电连接，这里不做限制。
在一些实施例中，一个子像素单元110的多个同色第一子像素111通过透明导线电连接。
具体地，透明导线可以由氧化铟锡和氧化铟锌中的一者或者两者制成。多个第一子像素111通过透明导线电连接，可以进一步提高第一显示区AA1的透光率。
在另一些实施例中，一个像素驱动单元120的多个第一像素驱动电路121分别通过透明导线与对应的一个子像素单元110中的一个第一子像素111电连接。如此设置，在提高对第一子像素111的驱动能力的同时，能够提高第一显示区AA1的透光率。
在一些实施例中，一个像素驱动单元120的多个第一像素驱动电路121并联后通过透明导线与对应的一个像素单元110中的一个第一子像素111电连接。如此设置，在简化显示面板100内部线路结构的同时，能够提高第一显示区AA1的透光率。
在一些实施例中，第一子像素111包括第一电极、位于第一电极上的第一发光结构以及位于第一发光结构上的第二电极。具体地，第一电极可以为阳极，第二电极可以为阴极，发光结构在第一电极和第二电极的电势差的作用下发光，对应显示面板100为OLED显示面板，提高显示效果。
在一些实施例中，为了实现同色第一子像素111的并联连接，一个像素单元110中相邻同色的第一子像素111的第一电极通过透明导线电连接。由于第一子像素111可以共用一个第二电极，即一个像素单元110中的相邻同色的第一子像素111的第二电极电连接，而通过透明导线将第一电极电连接，在实现一个像素单元110中相邻同色的第一子像素111的并联连接的同时，也有利于提高第一显示区AA1的透光率。
由于一个子像素单元110中的多个同色第一子像素111不一定相邻，在一些实施例中，一个子像素单元110中多个同色的第一子像素111的第一电极通过透明导线依次电连接。如此设置，在实现一个子像素单元110中的多个第一子像素111的并联连接的同时，可以提高第一显示区AA1的透光率。
在一些实施例中，如图5所示，一个子像素单元110中的多个同色发 光的第一子像素111的第一电极通过透明导线依次电连接，且绕设在至少一个发射非相同颜色光的第一子像素111的外侧。如此设置，将不同发光颜色的子像素111间隔设置，有利于提高第一显示区AA1的像素密度，且使第一显示区AA1具有更好的显示效果。
在一些实施例中，一个像素驱动单元120的多个第一像素驱动电路121通过透明导线或者非透明导线并联连接，汇集后通过一条透明导线或者一条非透明导线与对应的一个子像素单元110中一个第一子像素111电连接。如此设置，能够提高像素驱动单元120对相应的子像素单元110的驱动能力。
一个像素驱动单元120中设置的相邻两第一像素驱动电路121之间可以设置有第二像素驱动电路，也可以不设置第二像素驱动电路，这里不做限制。
在一些实施例中，一个像素驱动单元120的相邻两个第一像素驱动电路121之间设置有n个第二像素驱动电路，n为大于1的自然数。如此设置，可以根据需要合理设置第一像素驱动电路121和第二像素驱动电路的位置，以简化显示面板100内部电路结构。
n的具体数值可以根据需要进行选取，在一些实施例中，n为2到8的自然数。如此设置，便于显示面板100内部的电路排布。
在一些实施例中，一个像素驱动单元120呈并联连接的多个第一像素驱动电路121在第二显示区AA2内均匀分布。如此设置，更加利于第二显示区AA2内的线路排布，也便于像素驱动单元120的制作。
在一些实施例中，一个像素驱动单元120中并联的多个第一像素驱动电路121在第二显示区AA2内呈阵列排布，相邻第一像素驱动电路121之间在第一方向或者第二方向上的第二像素驱动电路的数量相当。如此设置，便于同一像素驱动单元120内的第一像素驱动电路121的线路排布，有利于第一像素驱动电路121之间的并联连接，进而有利于显示面板100的制作。
在一些实施例中，一个像素驱动单元120中并联连接的多个第一像素驱动电路121在第二显示区AA2内呈阵列排布，相邻第一像素驱动电路 121之间在第一方向或者第二方向上的第二像素驱动电路的数量为m个，m为大于1的自然数。如此设置，利用相邻第一像素驱动电路121之间的间隙设置第二像素驱动电路，能够提高像素驱动单元120对子像素单元110的驱动能力。
m的具体数值可以根据需要进行选取，在一些实施例中，m为2到8的自然数。如此设置，便于显示面板100内部的电路排布。
第一方向和第二方向可以为相交的两个方向，示例性地，第一方向为行方向，第二方向为列方向，即第一方向和第二方向相互垂直。如此设置，便于像素驱动单元120内的第一像素驱动电路121的电路排布。
透明导线作为电连接同色第一子像素111的导电介质，在第一显示区AA1内可以呈直线设置，也可以呈曲线设置，其宽度可以根据具体设置位置进行选取。
在一些实施例中，透明导线在第一显示区AA1内的走线轨迹为曲线或者直线。透明导线的宽度等宽或者非等宽。也就是说，透明导线的轨迹和宽度的均匀性不限，只要能够实现同色第一子像素111之间的电连接即可。
第一电极的形状不做限制，只要能够与第二电极一起配合，以使发光结构发光即可。
在一些实施例中，第一电极在显示面板100的正投影的外轮廓形状为如下任一种形状：水滴形、圆形、矩形、椭圆形、菱形、半圆形或半椭圆形。如此设置，均可以实现显示面板100的发光。
第一电极在第一显示区AA1内的占用的面积比例不做限制。在一些实施例中，第一显示区AA1中第一电极的总面积占第一显示区AA1面积的8％至23％。如此设置，在实现第一显示区AA1的显示作用的同时，也有利于提高第一显示区AA1的透光率。
图6示出了本申请实施例提供的显示装置10的结构示意图，图7为图6中沿D-D的剖视示意图。
本申请实施例还提供一种显示装置10，如图6和图7所示，显示装置10包括上述任意一实施例提供的显示面板100。
显示面板100包括第一显示区AA1和第二显示区AA2，第一显示区AA1的透光率大于第二显示区AA2。
显示面板100包括相对的第一表面S1和第二表面S2，其中第一表面S1为显示面。显示装置10还包括感光组件200，感光组件200位于显示面板100的第二表面S2侧，且感光组件与第一显示区AA1位置对应。
感光组件200可以是图像采集装置，用于采集外部图像信息。在一些实施例例中，感光组件200为互补金属氧化物半导体(Complementary Metal Oxide Semiconductor，CMOS)图像采集装置，在其它一些实施例中，感光组件200也可以是电荷耦合器件(Charge-coupled Device，CCD)图像采集装置等其它形式的图像采集装置。感光组件200可以不限于是图像采集装置，例如在一些实施例中，感光组件200也可以是红外传感器、接近传感器、红外镜头、泛光感应元件、环境光传感器以及点阵投影器等光传感器。此外，显示装置10在显示面板100的第二表面S2侧还可以集成其它部件，例如听筒、扬声器等。
根据本申请实施例提供的显示装置10，设置像素驱动单元120包括多个并联的第一像素驱动电路121，以共同驱动第一显示区AA1第一子像素111，如此设置可以提高驱动电路对第一显示区AA1内第一子像素111的驱动能力，保证第一显示区AA1的发光亮度，降低第一显示区AA1和第二显示区AA2的亮度差异。
本领域技术人员应能理解，上述实施例均是示例性而非限制性的。在不同实施例中出现的不同技术特征可以进行组合，以取得有益效果。本领域技术人员在研究附图、说明书及权利要求书的基础上，应能理解并实现所揭示的实施例的其他变化的实施例。在本公开中，术语“包括”并不排除其他装置或步骤；物品没有使用数量词修饰时旨在包括一个/种或多个/种物品，并可以与“一个/种或多个/种物品”互换使用”；术语“第一”、“第二”用于标示名称而非用于表示任何特定的顺序。权利要求中的任何附图标记均不应被理解为对保护范围的限制。权利要求中出现的多个部分的功能可以由一个单独的硬件或软件模块来实现。某些技术特征出现在不同的从属权利要求中并不意味着不能将这些技术特征进行组合以取 得有益效果。

Claims (20)

  1. 一种显示面板，其中，所述显示面板具有第一显示区和第二显示区，所述第一显示区的透光率大于所述第二显示区的透光率，所述显示面板包括：
    子像素单元，位于所述第一显示区，所述子像素单元包括第一子像素；
    像素驱动单元，位于所述第二显示区，所述像素驱动单元与所述第一子像素电连接，所述像素驱动单元包括多个并联的第一像素驱动电路。
  2. 根据权利要求1所述的显示面板，其中，一个所述子像素单元包括多个同色的所述第一子像素，所述多个第一子像素电连接。
  3. 根据权利要求1所述的显示面板，其中，所述子像素单元的数量为多个，每一个所述子像素单元中的一个所述第一子像素电连接一个所述像素驱动单元。
  4. 根据权利要求1所述的显示面板，其中，所述像素驱动单元的所述第一像素驱动电路的数量小于或者等于对应的所述子像素单元中的所述第一子像素的数量。
  5. 根据权利要求4所述的显示面板，其中，所述显示面板还包括位于所述第二显示区的第二像素驱动电路和第二子像素，所述第二像素驱动电路设置为驱动位于所述第二显示区的第二子像素，所述第二像素驱动电路与所述第一像素驱动电路的架构相同，且所述第一像素驱动电路中的电容和薄膜晶体管的结构与所述第二像素驱动电路中对应的电容和薄膜晶体管的结构相同。
  6. 根据权利要求1所述的显示面板，其中，所述显示面板还包括设置于所述第二显示区的扫描信号线，一个所述像素驱动单元中的多个所述第一像素驱动电路电连接同一所述扫描信号线，所述扫描信号线设置为向所述第一像素驱动电路传输扫描信号。
  7. 根据权利要求1所述的显示面板，其中，所述显示面板还包括设置于所述第二显示区的数据信号线，一个所述像素驱动单元的多个所述第一 像素驱动电路电连接同一所述数据信号线，所述数据信号线设置为向所述第一像素驱动电路传输数据信号；或者，
    所述显示面板包括设置于所述第二显示区的发光控制信号线，一个所述像素驱动单元的多个所述第一像素驱动电路电连接同一所述发光控制信号线，所述发光控制信号线设置为向所述第一像素驱动电路传输发光控制信号。
  8. 根据权利要求1所述的显示面板，其中，
    一个所述像素驱动单元的多个所述第一像素驱动电路位于同一行；或者，
    一个所述像素驱动单元的多个所述第一像素驱动电路位于同一列；或者，
    一个所述像素驱动单元的多个所述第一像素驱动电路呈多行多列分布。
  9. 根据权利要求8所述的显示面板，其中，至少部分所述第一像素驱动电路和与所述第一像素驱动电路电连接的所述第一子像素同行分布。
  10. 根据权利要求1至9任意一项所述的显示面板，其中，一个所述子像素单元的多个同色所述第一子像素通过透明导线电连接；或者，
    一个所述像素驱动单元的多个所述第一像素驱动电路分别通过透明导线与对应的一个所述子像素单元中的一个所述第一子像素电连接；或者，
    一个所述像素驱动单元的多个所述第一像素驱动电路并联后通过透明导线与对应的一个所述子像素单元中的一个所述第一子像素电连接。
  11. 根据权利要求1所述的显示面板，其中，所述第一子像素包括第一电极、位于所述第一电极上的第一发光结构以及位于所述第一发光结构上的第二电极。
  12. 根据权利要求11所述的显示面板，其中，一个所述子像素单元中相邻同色的所述第一子像素的所述第一电极通过透明导线电连接；或者，
    一个所述子像素单元中多个同色的所述第一子像素的所述第一电极通过透明导线依次电连接；或者，
    一个所述子像素单元中多个同色的所述第一子像素的所述第一电极通 过透明导线依次电连接，且绕设在至少一个非相同颜色的所述第一子像素的外侧。
  13. 根据权利要求1所述的显示面板，其中，一个所述像素驱动单元的多个所述第一像素驱动电路通过透明导线或者非透明导线并联，汇集后通过一条透明导线或者一条非透明导线与对应的一个所述子像素单元中的一个所述第一子像素电连接。
  14. 根据权利要求1至9任一项所述的显示面板，其中，一个所述像素驱动单元的相邻两个所述第一像素驱动电路之间设置有n个第二像素驱动电路，n为2到8的自然数。
  15. 根据权利要求1至9任一项所述的显示面板，其中，一个所述像素驱动单元呈并联连接的多个所述第一像素驱动电路在所述第二显示区内均匀分布。
  16. 根据权利要求1所述的显示面板，其中，一个所述像素驱动单元并联连接的多个所述第一像素驱动电路在所述第二显示区内阵列排布，相邻所述第一像素驱动电路之间在第一方向的第二像素驱动电路的数量和在第二方向上的第二像素驱动电路的数量相当。
  17. 根据权利要求1所述的显示面板，其中，一个所述像素驱动单元呈并联连接的多个所述第一像素驱动电路在所述第二显示区内阵列排布，相邻所述第一像素驱动电路之间在第一方向或者第二方向上的第二像素驱动电路的数量为m，m为2到8的自然数。
  18. 根据权利要求12所述的显示面板，其中，所述透明导线在所述第一显示区内的走线轨迹为曲线或者直线；所述透明导线的宽度等宽或者非等宽。
  19. 根据权利要求11所述的显示面板，其中，所述第一电极在所述显示面板的正投影的外轮廓形状为如下任一种形状：水滴形、圆形、矩形、椭圆形、菱形、半圆形或半椭圆形；或者，
    所述第一显示区中所述第一电极的总面积占所述第一显示区面积的8％至23％。
  20. 一种显示装置，包括如权利要求1至19任意一项所述的显示面 板。
PCT/CN2022/108236 2021-12-15 2022-07-27 显示面板及显示装置 Ceased WO2023109136A1 (zh)

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