WO2017016137A1 - 显示面板、触控显示装置、显示面板制作方法 - Google Patents
显示面板、触控显示装置、显示面板制作方法 Download PDFInfo
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- WO2017016137A1 WO2017016137A1 PCT/CN2015/097232 CN2015097232W WO2017016137A1 WO 2017016137 A1 WO2017016137 A1 WO 2017016137A1 CN 2015097232 W CN2015097232 W CN 2015097232W WO 2017016137 A1 WO2017016137 A1 WO 2017016137A1
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- periodic structure
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Definitions
- the present disclosure relates to the field of display technologies, and in particular, to a display panel, a method for fabricating the same, and a touch display device.
- liquid crystal display uses an electric field to control the rotation of the liquid crystal to realize gray scale display, and realizes color display by means of a color film. It has excellent performances such as thinness, light weight, low power consumption, and has long been used in displays for computers, televisions, and mobile terminals.
- Figures 1a, 1b, 1c schematically illustrate a known display panel 100, respectively.
- the first substrate 101 shown in FIG. 1a has a first periodic structure
- the second substrate 102 shown in FIG. 1b has a second periodic structure.
- the space beat frequency between the first and second periodic structures generates a moiré of P1 due to positional deviation, etc., as shown in FIG. 1c. Shown.
- the moiré will directly affect the visual effect of the product and reduce the user's visual experience.
- the present disclosure proposes to add a new layer of film to reduce or eliminate the effect of moiré, thereby improving the visual effect of the product and improving the visual experience of the user.
- a display panel including a first substrate and a second substrate, the first substrate having a first periodic structure, the second substrate having a second periodic structure and arranged On the first substrate; and the display panel is further included
- a moiré suppression layer is disposed on the second substrate and reduces a pitch of moiré formed by the first and second periodic structures.
- a method of non-uniformizing the first periodic structure or the second periodic structure is generally employed to alleviate or eliminate moiré, but this leads to an increase in process difficulty and a reduction in product yield.
- the display quality of the display panel is improved. And improve the user's visual experience.
- moiré can be alleviated or eliminated by adding an additional layer of moiré suppression layer, which makes the process less difficult and improves product yield.
- This solution can be used to avoid moiré risk design before product development, and can also be used to solve moiré problems after product development.
- the solution adopts a simple design, and has no special requirements for the process of the moiré suppression layer, and is relatively easy to implement.
- the moiré suppression layer may have a third periodic structure.
- the moiré suppression layer has a third periodic structure such that the moiré suppression layer is simply fabricated. Furthermore, by arranging the third periodic structure, with the interaction between the first, second and third periodic structures, it is possible to form a moiré with a reduced pitch or to completely eliminate moiré.
- the third periodic structure is the same as the first periodic structure; or the third periodic structure is the same as the second periodic structure.
- the third periodic structure is different from the first and second periodic structures and has a rectangular or diamond shaped grid.
- the third periodic structure is offset relative to the first and second periodic structures.
- the pitch of the moiré can be effectively reduced.
- the third periodic structure is arranged in deflection relative to the first and second periodic structures.
- the interaction between the first, second, and third periodic structures can be utilized to make the three
- the spacing of the formed moiré is reduced to achieve the purpose of reducing or eliminating moiré.
- the third periodic structure has a deflection angle of -5° to 5° with respect to the first periodic structure.
- the deflection angle between the first and second periodic structures is generally -5° to 5° by passing the third periodic structure of the moiré suppression layer with the first of the first substrate
- the deflection angle between the periodic structures is arranged to be -5° to 5°, which can effectively alleviate or eliminate moiré.
- the moiré suppression layer may include a carrier layer and the third periodic structure formed on the carrier layer.
- the solution adopts a simple design, and has no special requirements on the process of the moiré suppression layer, and is relatively easy to implement.
- the carrier layer may be formed of polyethylene terephthalate (PET), and the third periodic structure may be a conductive mesh formed of nano silver, graphene or copper.
- PET polyethylene terephthalate
- the third periodic structure may be a conductive mesh formed of nano silver, graphene or copper.
- the carrier layer may be formed of a dielectric material
- the third periodic structure may be formed of a material having a light transmittance different from that of the carrier layer.
- forming the carrier layer and the third periodic structure using dielectric materials having different light transmittances contributes to cost reduction.
- the moiré suppression layer may be formed directly on the second substrate.
- a carrier layer of a dielectric material can be deposited directly on the second substrate and a corresponding third periodic structure can be formed, making fabrication simple.
- the moiré suppression layer may be a component separable from the second substrate.
- the first substrate may be a color film substrate
- the second substrate may be a touch substrate.
- a black matrix on the color filter substrate forms the first periodic structure
- a metal mesh touch electrode on the touch substrate forms the second periodic structure.
- manufacturers actively promote metal grid technology to replace ITO for touch display (ie, G1M solution), but the periodic structure of the metal grid will create a space shot with the periodic structure of the black matrix on the color filter substrate in the liquid crystal module. The frequency effect, thereby producing a moiré recognizable by the human eye.
- the present disclosure can effectively solve the moiré problem in the G1M scheme.
- the present disclosure provides a touch display device comprising the display panel described above.
- the present disclosure provides a method of fabricating a display panel, including:
- the step S3 may include disposing the moiré suppression layer on the second substrate, wherein the moiré suppression layer has a third periodic structure.
- the step S3 may include: arranging the moiré suppression layer on the second substrate, wherein the moiré suppression is extracted from the first periodic structure or the second periodic structure The third periodic structure of the layer.
- the step S3 may include disposing the moiré suppression layer on the second substrate, and disposing the third periodic structure with respect to the first and second periodic structures.
- the step S3 may include: arranging the moiré suppression layer on the second substrate, and arranging the third periodic structure with respect to the first and second periodic structures.
- the third periodic structure may be deflected by -5° to 5° with respect to the first periodic structure.
- the step S3 may include: preparing a carrier layer; and forming the third periodic structure on the carrier layer.
- the step S3 may include directly forming the moiré suppression layer on the second substrate.
- the step S3 may include disposing the moiré suppression layer on the second substrate by lamination.
- the step S1 may include preparing a color filter substrate; and the step S2 may include disposing a touch substrate on the color film substrate.
- the method of fabricating the display panel and the touch display device according to the present disclosure have the same or similar benefits as the display panel described above, and are not described herein again.
- the effect of mitigating or eliminating moiré is enhanced by adding a new layer of film, thereby improving the visual effect of the product and improving the visual experience of the user, and making the process difficulty lower and improving the product yield.
- the present disclosure is not limited to avoid moiré risk design before product development, and can be used to solve the moiré problem after product development is completed.
- the solution adopts a simple design, and has no special requirements for the process of the moiré suppression layer, and is relatively easy to implement.
- FIG. 1a, 1b, 1c schematically show a known display panel, respectively, wherein FIG. 1a shows a first periodic structure of a first substrate in a display panel, and FIG. 1b shows a second periodicity of a second substrate in the display panel Structure, and Figure 1c shows moiré formed by the first and second periodic structures;
- FIG. 4 schematically shows a flow chart of a method of fabricating a display panel in accordance with the present disclosure.
- reference numerals 100 and 200 denote display panels
- 101 denotes a first substrate
- 102 denotes a second substrate
- 210, 211, and 212 denote moiré suppression layers
- P1 and P2 denote moiré pitches.
- the first substrate 101 may be a color filter substrate, and the black matrix periodically arranged in the color filter substrate forms a first periodic structure.
- the second substrate 102 may be a touch substrate, and the touch electrodes periodically arranged in the touch substrate form a second periodic structure.
- the first periodic structure of the black matrix and the second periodic structure of the touch electrode are different or misaligned, for example, offset or deflected from each other (as shown in FIGS. 1b and 1c)
- the first Interacting with the second periodic structure produces a spatial beat effect, thereby producing a moiré with a pitch of P1 recognizable by the human eye.
- the present disclosure provides an additional moiré suppression layer 210.
- Figure 2b shows a display panel 200.
- the pitch of the moiré becomes P2.
- P2 is smaller than P1, that is, the pitch of the moiré is reduced.
- the spacing of the moiré is small enough, the human eye cannot recognize it. It can be considered that the moiré is eliminated. For example, taking a clear viewing distance of 30 cm as an example, when the spacing of the moiré is less than 70-80 ⁇ m, the moiré cannot be recognized by the human eye.
- the moiré suppression layer 210 can have a third periodic structure.
- the moiré suppression layer 210 having a periodic structure can be formed, for example, by photolithography, screen printing, nanoimprinting, or the like, so that the moiré suppression layer 210 is simple to fabricate. Since the moiré suppression layer 210 has a third periodic structure, it is possible to utilize the third periodic structure of the moiré suppression layer 210 and the first and second periodic structures of the first substrate 101 and the second substrate 102. The interaction creates a moiré with reduced pitch.
- FIG. 3a An example of a moiré suppression layer 210 is shown in Figures 3a, 3b.
- the third periodic structure of the moiré suppression layer 211 may be the same as the first periodic structure of the first substrate 101 (FIG. 1a).
- the third periodic structure of the moiré suppression layer 212 may be the same as the second periodic structure of the second substrate 102 (FIG. 1b).
- the third periodic structure of the moiré suppression layers 211, 212 can be extracted from the first periodic structure of the first substrate 101 or the second periodic structure of the second substrate 102.
- Figures 3a, 3b only schematically illustrate a third periodic structure of the moiré suppression layers 211, 212.
- the moiré suppression layer 212 shown in FIG. 3b has a rectangular grid, which is the same as the second periodic structure of the second substrate 102 shown in FIG. 1b.
- the periodically arranged touch electrodes generally have a diamond-shaped grid.
- the third periodic structure of the moiré suppression layer 212 may also have a diamond-shaped grid.
- the third periodic structure of the moiré suppression layer 210 may be different from the first and second periodic structures of the first and second substrates 101, 102. By designing the third periodic structure of the moiré suppression layer 210, a better effect than that shown in Fig. 2b can be achieved, i.e., P2 is much smaller than P1.
- the design parameters of the third periodic structure may include, but are not limited to, shape, period, aperture ratio, and the like.
- the third periodic structure may have a rectangular or diamond shaped grid.
- the third periodic structure may be a square grid.
- the period of the third periodic structure may refer to the side length of the cell grid.
- the aperture ratio of the third periodic structure may refer to the ratio of the open area of the grid to the total area of the entire structure.
- the third periodic structure of the moiré suppression layer 210 may be disposed offset with respect to the first periodic structure of the first substrate 101. As shown, the third periodic structure of the moiré suppression layer 210 is also offset relative to the second periodic structure of the second two substrates 102.
- offset refers to a displacement in a plane parallel to the first substrate or the second substrate.
- the third periodic structure of the moiré suppression layer 210 may be arranged to be deflected relative to the first periodic structure of the first substrate 101.
- the term "incline” refers to a rotation in a plane parallel to the first substrate or the second substrate.
- the reduced moiré pitch P2 can also be achieved by deflecting the third periodic structure relative to the first and second periodic structures.
- the deflection angle between the first and second periodic structures of the first substrate 101 and the second substrate 102 is typically -5° to 5°. For this reason, by arranging the deflection angle between the third periodic structure of the moiré suppression layer 210 and the first periodic structure of the first substrate 101 to ⁇ 5° to 5°, the moir can be effectively alleviated or eliminated. Pattern.
- the moiré suppression layer 210 may include a carrier layer and a third periodic structure formed on the carrier layer.
- the carrier layer may be formed of polyethylene terephthalate (PET), and the third periodic structure may be a conductive mesh formed of nanosilver, graphene or copper.
- a conductive mesh can be formed on a carrier layer such as PET using known metal mesh techniques.
- the carrier layer may be formed of a dielectric material, and the third periodic junction
- the structure may be formed of a material having a light transmissive property different from that of the carrier layer.
- the carrier layer and the third periodic structure are formed using dielectric materials having different light transmittance.
- the carrier layer may be formed using a dielectric material such as silicon nitride, silicon oxide or silicon oxynitride, and then a third periodic structure may be formed using materials having different light transmittance.
- the moiré suppression layer 210 may be a separate component from the second substrate 102. Thereby, the moiré suppression layer 210 can be disposed on the second substrate 102 by a bonding method. In the case where the moiré suppression layer 210 is a separate member, when the moiré suppression layer 210 is attached to the second substrate 102, the moiré suppression layer can be adjusted to better reduce or eliminate moiré. In addition, in this case, the moiré suppression layer 210 can be independently fabricated in advance and then attached to the second substrate 102 in an appropriate process, thereby reducing the process line occupation time and contributing to the reduction of the display panel. Cost of production.
- step S3 may include disposing a moiré suppression layer 210 on the second substrate 102, wherein moiré suppression is extracted from the first periodic structure of the first substrate 101 or the second periodic structure of the second substrate 102
- the third periodic structure of layer 210 may be the same as the first periodic structure of the first substrate 101 or the second periodic structure of the second substrate 102.
- step S3 may include: forming different from the first and second periodic structures A third periodic structure, wherein the third periodic structure has a rectangular or diamond shaped grid.
- step S3 may include disposing a moiré suppression layer on the second substrate, and arranging the third periodic structure with respect to the first and second periodic structures.
- the third periodic structure may be arranged in deflection relative to the first and second periodic structures.
- the third periodic structure can be deflected by -5° to 5° with respect to the first periodic structure.
- step S3 may include: forming a carrier layer with a dielectric material; and forming a third periodic structure with a material having a light transmittance different from that of the carrier layer.
- step S3 may include directly forming a moiré suppression layer on the second substrate.
- step S3 may include arranging the moiré suppression layer on the second substrate by lamination.
- step S1 may include preparing a color filter substrate; and step S2 may include disposing a touch substrate on the color filter substrate.
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Abstract
一种显示面板(100,200)、触控显示装置以及显示面板(100,200)制作方法。显示面板(100,200)包括第一基板(101)和第二基板(102),第一基板(101)具有第一周期性结构,第二基板(102)具有第二周期性结构并且布置在第一基板(101)上。显示面板(100,200)还包括莫尔纹抑制层(210,211,212),莫尔纹抑制层(210,211,212)布置在第二基板(102)上并且减小由第一和第二周期性结构形成的莫尔纹的间距(P1,P2)。通过增加一层额外的莫尔纹抑制层(210,211,212)即可减轻或者消除莫尔纹,从而改善产品的视觉效果并且改善用户的视觉体验。
Description
本公开涉及显示技术领域,具体地涉及一种显示面板及其制作方法、触控显示装置。
在社会需求信息化的同时,人们对信息显示有着极大的需求,目前市场上最为通用的显示方式则是液晶显示器。液晶显示器利用电场控制液晶旋转来实现灰度显示,借助彩膜进而实现彩色显示。它具有薄型、轻量、低功耗等优良的性能,并且早已应用于电脑、电视以及移动终端设备显示器。
为了更好地实现人机交互功能,触控屏应运而生,但是触控屏中待解决的问题还非常多。特别地,电容触控屏中一个非常重要的光学问题,也就是莫尔纹(moir é fringe)问题严重制约着产品的开发,因而也是设计时要考虑的约束因素之一。
图1a、1b、1c分别示意性示出已知的显示面板100。图1a所示的第一基板101具有第一周期性结构,图1b所示的第二基板102具有第二周期性结构。第一基板101和第二基板102堆叠制作显示面板100时,由于位置偏差等原因,第一和第二周期性结构之间空间拍频产生间距(pitch)为P1的莫尔纹,如图1c所示。该莫尔纹将直接影响产品的视觉效果,降低用户的视觉体验。
目前,通常尝试将与莫尔纹相关的周期性结构非均匀化来解决上述莫尔纹问题。但是,这会使得产品工艺难度增大并且降低产品良率。因此,本领域中存在对一种莫尔纹减轻或消除的显示面板及其制作方法的需求。
发明内容
本公开的目的在于减轻或解决前文所提到的问题的一个或多个。具体而言,本公开提出增加一层新膜层来到减轻或者消除莫尔纹的效果,从而改善产品的视觉效果并且改善用户的视觉体验。
在第一方面,提供了一种显示面板,所述显示面板包括第一基板和第二基板,所述第一基板具有第一周期性结构,所述第二基板具有第二周期性结构并且布置在所述第一基板上;并且所述显示面板还包
括莫尔纹抑制层,所述莫尔纹抑制层布置在所述第二基板上并且减小由所述第一和第二周期性结构形成的莫尔纹的间距。
目前,一般采用使第一周期性结构或第二周期性结构非均匀化的方法来减轻或者消除莫尔纹,但是这会导致工艺难度增大并且降低产品良率。在本公开中,通过在显示面板中另外提供莫尔纹抑制层,由此减轻或者消除由第一和第二周期性结构之间的空间拍频产生的莫尔纹,提高显示面板的显示质量并且改善用户的视觉体验。根据本公开的方案,通过增加一层额外的莫尔纹抑制层即可减轻或者消除莫尔纹,使得工艺难度降低并且提高产品良率。该方案可以用于产品开发前的避免莫尔纹风险设计,也可以用于产品开发完成后解决莫尔纹问题。此外,该方案采用简便的设计,对所述莫尔纹抑制层的工艺无特殊要求,较为容易实现。
优选地,所述莫尔纹抑制层可以具有第三周期性结构。
根据本公开,所述莫尔纹抑制层具有第三周期性结构,使得所述莫尔纹抑制层制作简单。此外,通过布置第三周期性结构,利用所述第一、第二和第三周期性结构之间的相互作用,可以形成间距减小的莫尔纹或者完全消除莫尔纹。
优选地,所述第三周期性结构与所述第一周期性结构相同;或者所述第三周期性结构与所述第二周期性结构相同。
根据本公开,可以从第一基板的第一周期性结构提取莫尔纹抑制层的第三周期性结构,或者可以从第二基板的第二周期性结构提取莫尔纹抑制层的第三周期性结构,这样实现起来较为方便有效。
优选地,所述第三周期性结构不同于所述第一和第二周期性结构,并且具有长方形或菱形格栅。
根据本公开,所述第三周期性结构可以不同于所述第一和第二周期性结构,并且具有长方形或菱形格栅。因此,本公开的莫尔纹抑制层的设计非常灵活,并且易于实现。另外,通过调整所述第三周期性结构的周期,可以有效地减小所述莫尔纹的间距。
优选地,所述第三周期性结构相对于所述第一和第二周期性结构偏移布置。
根据本公开,通过相对于所述第一和第二周期性结构偏移所述第三周期性结构,可以有效地减小莫尔纹的间距。
优选地,所述第三周期性结构相对于所述第一和第二周期性结构偏转布置。
根据本公开,通过相对于所述第一和第二周期性结构偏转所述第三周期性结构,由此可以利用第一、第二和第三周期性结构之间的相互作用使得这三者形成的莫尔纹的间距减小,从而达到减轻或者消除莫尔纹的目的。
优选地,所述第三周期性结构相对于所述第一周期性结构的偏转角为-5°至5°。
根据本公开,第一和第二周期性结构之间的偏转角一般为-5°至5°,通过将所述莫尔纹抑制层的第三周期性结构与所述第一基板的第一周期性结构之间的偏转角布置为-5°至5°,可以有效地减轻或者消除莫尔纹。
优选地,所述莫尔纹抑制层可以包括承载层和形成于所述承载层上的所述第三周期性结构。
根据本公开,该方案采用简便的设计,对所述莫尔纹抑制层的工艺无特殊要求,较为容易实现。
优选地,所述承载层可以由聚对苯二甲酸乙二醇酯(PET)形成,并且所述第三周期性结构可以为由纳米银、石墨烯或铜形成的导电网格。
根据本公开,可以利用已知的金属网格(metal mesh)技术,在诸如PET的承载层上形成导电网格。
优选地,所述承载层可以由电介质材料形成,并且所述第三周期性结构可以由透光性不同于所述承载层的材料形成。
根据本公开,利用具有不同透光性的电介质材料形成所述承载层和所述第三周期性结构,有助于降低成本。
优选地,所述莫尔纹抑制层可以直接形成于所述第二基板上。
根据本公开,可以直接在所述第二基板上沉积电介质材料的承载层并且形成相应第三周期性结构,使得制作简单。
优选地,所述莫尔纹抑制层可以为与所述第二基板可分离的部件。
根据本公开,所述莫尔纹抑制层可以是分离部件,由此可以通过贴合方式布置在所述第二基板上。在所述莫尔纹抑制层为分离部件的情况下,在将所述莫尔纹抑制层贴合到第二基板上时,可以调整所述莫尔纹抑制层,有利于更好地消除莫尔纹。此外,所述莫尔纹抑制层
可以独立地预先制作,然后贴合到第二基板上,由此可以降低工艺线占用时间,有助于降低显示面板的生产成本。
优选地,所述第一基板可以为彩膜基板,以及所述第二基板可以为触摸基板。
根据本公开,所述彩膜基板上的黑矩阵形成所述第一周期性结构,所述触摸基板上的金属网格触摸电极形成所述第二周期性结构。目前厂商积极推进金属网格技术以替代ITO用于触控显示(即G1M方案),但是金属网格的周期性结构将会与液晶模组中彩膜基板上黑矩阵的周期性结构产生空间拍频效应,由此产生人眼可识别的莫尔纹。本公开可以有效地解决G1M方案中的莫尔纹问题。
在第二方面,本公开提供了一种触摸显示装置,其包括上文所述的显示面板。
在第三方面,本公开提供了一种显示面板的制作方法,包括:
S1、准备第一基板,其具有第一周期性结构;
S2、在所述第一基板上布置第二基板,其具有第二周期性结构;以及
S3、在所述第二基板上布置莫尔纹抑制层以减小由所述第一和第二周期性结构形成的莫尔纹的间距。
优选地,所述步骤S3可以包括:在所述第二基板上布置所述莫尔纹抑制层,其中所述莫尔纹抑制层具有第三周期性结构。
优选地,所述步骤S3可以包括:在所述第二基板上布置所述莫尔纹抑制层,其中从所述第一周期性结构或所述第二周期性结构提取所述莫尔纹抑制层的第三周期性结构。
优选地,所述步骤S3可以包括:形成不同于所述第一和第二周期性结构的所述第三周期性结构,其中所述第三周期性结构具有长方形或菱形格栅。
优选地,所述步骤S3可以包括:在所述第二基板上布置所述莫尔纹抑制层,以及相对于所述第一和第二周期性结构偏移布置所述第三周期性结构。
优选地,所述步骤S3可以包括:在所述第二基板上布置所述莫尔纹抑制层,以及相对于所述第一和第二周期性结构偏转布置所述第三周期性结构。
优选地,所述第三周期性结构相对于所述第一周期性结构可以偏转-5°至5°。
优选地,所述步骤S3可以包括:准备承载层;以及在所述承载层上形成所述第三周期性结构。
优选地,所述步骤S3可以包括:利用聚对苯二甲酸乙二醇酯形成所述承载层;以及利用纳米银、石墨烯或铜的导电网格形成所述第三周期性结构。
优选地,所述步骤S3可以包括:利用电介质材料形成所述承载层;以及利用透光性不同于所述承载层的材料形成所述第三周期性结构。
优选地,所述步骤S3可以包括:在所述第二基板上直接形成所述莫尔纹抑制层。
优选地,所述步骤S3可以包括:通过贴合将所述莫尔纹抑制层布置在所述第二基板上。
优选地,所述步骤S1可以包括准备彩膜基板;以及所述步骤S2可以包括在所述彩膜基板上布置触摸基板。
根据本公开的显示面板的制作方法以及触摸显示装置具有与前文所述的显示面板相同或相似的益处,此处不再赘述。
根据本公开,通过增加一层新膜层来到减轻或者消除莫尔纹的效果,由此改善产品的视觉效果并且改善用户的视觉体验,并且使得工艺难度降低并且提高产品良率。本公开不紧可以用于产品开发前的避免莫尔纹风险设计,而且可以用于产品开发完成后解决莫尔纹问题。此外,该方案采用简便的设计,对所述莫尔纹抑制层的工艺无特殊要求,较为容易实现。
图1a、1b、1c分别示意性示出已知的显示面板,其中图1a示出显示面板中第一基板的第一周期性结构,图1b示出显示面板中第二基板的第二周期性结构,以及图1c示出由第一和第二周期性结构形成的莫尔纹;
图2a、2b分别示意性示出根据本公开的显示面板,其中图2a示出根据本公开的莫尔纹抑制层,以及图2b示出根据本公开的具有减小的莫尔纹间距的显示面板;
图3a、3b分别示意性示出根据本公开的莫尔纹抑制层;以及
图4示意性示出根据本公开的显示面板制作方法的流程图。
下面结合附图,对本公开的显示面板、触控显示装置、显示面板制作方法的具体实施方式进行详细地说明。
本公开的附图示意性地绘示出与发明点有关的结构、部分和/或步骤,而没有绘示或者仅仅部分地绘示与发明点无关的结构、部分和/或步骤。
各附图中,附图标记100、200表示显示面板,101表示第一基板,102表示第二基板,210、211、212表示莫尔纹抑制层,并且P1、P2表示莫尔纹的间距。
图1a、1b、1c以触摸显示装置为例说明莫尔纹现象。具体地,在该触摸显示装置的显示面板100中,第一基板101可以为彩膜基板,彩膜基板中周期性排列的黑矩阵形成第一周期性结构。第二基板102可以为触摸基板,触摸基板中周期性排列的触控电极形成第二周期性结构。实践中,由于黑矩阵的第一周期性结构和触控电极的第二周期性结构不相同或者未对齐,例如相互之间发生偏移或偏转(如图1b、1c所示),该第一和第二周期性结构相互作用产生空间拍频效应,由此产生人眼可识别的间距为P1的莫尔纹。
由此可见,触摸显示装置会出现莫尔纹现象。此外,在其它液晶显示装置(LCD)或有机电致发光装置(OLED)中,在不同基板上存在第一周期性结构和第二周期性结构的情况下,该第一和第二周期性结构贴合后即可能导致出现莫尔纹。再者,LCD和OLED还可能包括三个或多个周期性结构,这也会导致出现莫尔纹。在下文中,以触摸显示装置中的彩膜基板包括第一周期性结构并且触摸基板包括第二周期性结构的最简单情形为例阐述本公开的原理和效果。然而,如前文所描述,本公开并不以此为限,而可以应用于消除任何LCD或OLED中由两个以上周期性结构导致的莫尔纹。
实施例一
如图2a所示,本公开提供额外的莫尔纹抑制层210。图2b示出了显示面板200。当莫尔纹抑制层210贴合在第二基板102上时,莫尔纹的间距变为P2。通过比较图1c和图2b可以看出,P2小于P1,即,莫尔纹的间距减小。当莫尔纹的间距足够小时,人眼无法识别到,这时
可以认为莫尔纹被消除。例如,以30cm的明视距离为例,当莫尔纹的间距小于70-80μm时,人眼就无法识别到莫尔纹。
与已知的通过使第一周期性结构或第二周期性结构非均匀化的方法来减轻或者消除莫尔纹的方式不同,在本公开的方案中,通过提供额外的莫尔纹抑制层以减轻或者消除莫尔纹。根据该方案,通过增加一层额外的莫尔纹抑制层即可减轻或者消除莫尔纹,而不改变原有的第一基板和第二基板的图案和工艺。这使得本公开的方案设计简便并且容易实现。该方案可以用于产品开发前的避免莫尔纹风险设计,也可以用于产品开发完成后解决莫尔纹问题。
如图2a所示,在一优选实施例中,莫尔纹抑制层210可以具有第三周期性结构。具有周期性结构的莫尔纹抑制层210例如可以通过光刻、丝网印刷、纳米压印等方法形成,使得莫尔纹抑制层210制作简单。由于莫尔纹抑制层210具有第三周期性结构,由此可以利用莫尔纹抑制层210的第三周期性结构与第基板101和第二基板102的第一和第二周期性结构之间的相互作用,形成间距减小的莫尔纹。
图3a、3b示出了莫尔纹抑制层210的示例。如图3a所示,莫尔纹抑制层211的第三周期性结构可以与第一基板101的第一周期性结构(图1a)相同。可选地,如图3b所示,莫尔纹抑制层212的第三周期性结构可以与第二基板102的第二周期性结构(图1b)相同。藉此,在优选实施例中,可以从第一基板101的第一周期性结构或第二基板102的第二周期性结构提取莫尔纹抑制层211、212的第三周期性结构。
需要指出,图3a、3b仅仅示意性示出莫尔纹抑制层211、212的第三周期性结构。例如,图3b所示的莫尔纹抑制层212具有长方形格栅,与图1b所示的第二基板102的第二周期性结构相同。然而,当显示面板200的触摸显示装置中采用金属网格(metal mesh)技术替代ITO来形成触摸电极时,周期性排布的触摸电极通常具有菱形格栅。这种情况下,莫尔纹抑制层212的第三周期性结构也可以具有菱形格栅。
莫尔纹抑制层210的第三周期性结构可以不同于第一和第二基板101、102的第一和第二周期性结构。通过设计莫尔纹抑制层210的第三周期性结构,可以实现比图2b所示更好的效果,即,P2远小于P1。第三周期性结构的设计参数可以包括,但是不限于,形状、周期、开口率等。例如,第三周期性结构可以具有长方形或菱形格栅。此外,
第三周期性结构可以正方形格栅。第三周期性结构的周期可以指单元格栅的边长。第三周期性结构的开口率可以指格栅的开口面积与整个结构的总面积的比例。通过调整这些设计参数,可以改善抑制莫尔纹的效果。
如图2所示,例如,莫尔纹抑制层210的第三周期性结构可以相对于第一基板101的第一周期性结构偏移布置。如所示,莫尔纹抑制层210的第三周期性结构还相对于第2二基板102的第二周期性结构偏移布置。在本公开的上下文中,术语″偏移(offset)″是指在平行于第一基板或第二基板的平面内的平移(displace)。通过相对于第一和第二周期性结构偏移第三周期性结构,可以实现明显减小的莫尔纹间距P2。
优选地,莫尔纹抑制层210的第三周期性结构可以相对于第一基板101的第一周期性结构偏转布置。在本公开的上下文中,术语″偏转(incline)″是指在平行于第一基板或第二基板的平面内的旋转(rotate)。通过相对于第一和第二周期性结构偏转第三周期性结构,也可以实现减小的莫尔纹间距P2。
实践中,第一基板101和第二基板102的第一和第二周期性结构之间的偏转角一般为-5°至5°。为此,通过将莫尔纹抑制层210的第三周期性结构与第一基板101的第一周期性结构之间的偏转角布置为-5°至5°,可以有效地减轻或者消除莫尔纹。
需要指出,莫尔纹抑制层210可以相对于第一基板101偏转而相对于第二基板102不偏转。可以理解,莫尔纹抑制层210可以相对于第二基板102偏转而相对于第一基板101不偏转。或者,莫尔纹抑制层210可以相对于第一基板101和第二基板102均偏转。另外指出,莫尔纹抑制层210相对于第一基板101和/或第二基板102偏转的角度可以根据实际情形决定。
在一实施例中,莫尔纹抑制层210可以包括承载层和形成于承载层上的第三周期性结构。
优选地,该承载层可以由聚对苯二甲酸乙二醇酯(PET)形成,并且该第三周期性结构可以为由纳米银、石墨烯或铜形成的导电网格。在此实施例中,可以利用已知的金属网格(metal mesh)技术,在诸如PET的承载层上形成导电网格。
优选地,该承载层可以由电介质材料形成,并且该第三周期性结
构可以由透光性不同于承载层的材料形成。藉此,利用具有不同透光性的电介质材料形成承载层和第三周期性结构。例如,可以利用诸如氮化硅、氧化硅或氮氧化硅的电介质材料形成承载层,随后利用透光性不同的材料形成第三周期性结构。
优选地,莫尔纹抑制层210可以直接形成于第二基板102上。藉此,可以直接在第二基板120上,例如通过沉积的方式形成电介质材料的承载层,并且进一步形成第三周期性结构,使得制作工艺较为简单。
在一实施例中,莫尔纹抑制层210可以为与第二基板102可分离的部件。藉此,可以通过贴合方式将莫尔纹抑制层210布置在第二基板102上。在莫尔纹抑制层210为分离部件的情况下,在将莫尔纹抑制层210贴合到第二基板102上时,可以调整莫尔纹抑制层从而更好地减轻或者消除莫尔纹。此外,在这种情况下,莫尔纹抑制层210可以独立地预先制作,然后适当的工序中贴合到第二基板102上,由此可以降低工艺线占用时间,有助于降低显示面板的生产成本。
实施例二
本公开还提供了一种触摸显示装置。该触摸显示装置可以包括上文所描述的显示面板。
实施例三
本公开还提供了一种显示面板的制作方法。如图4所示,该方法包括步骤:S1、准备第一基板101,其具有第一周期性结构;S2、在第一基板101上布置第二基板102,其具有第二周期性结构;以及S3、在第二基板102上布置莫尔纹抑制层210以减小由第一和第二周期性结构形成的莫尔纹的间距。
优选地,步骤S3可以包括:在第二基板102上布置莫尔纹抑制层210,其中莫尔纹抑制层210具有第三周期性结构,如图2a所示。
优选地,步骤S3可以包括:在第二基板102上布置莫尔纹抑制层210,其中从第一基板101的第一周期性结构或第二基板102的第二周期性结构提取莫尔纹抑制层210的第三周期性结构。藉此,莫尔纹抑制层210的第三周期性结构可以与第一基板101的第一周期性结构相同,或者与第二基板102的第二周期性结构相同。
优选地,步骤S3可以包括:形成不同于第一和第二周期性结构的
第三周期性结构,其中第三周期性结构具有长方形或菱形格栅。
优选地,步骤S3可以包括:在第二基板上布置莫尔纹抑制层,以及相对于第一和第二周期性结构偏移布置第三周期性结构。可选地,可以相对于第一和第二周期性结构偏转布置第三周期性结构。具体地,第三周期性结构相对于第一周期性结构可以偏转-5°至5°。
优选地,步骤S3可以包括:准备承载层;以及在承载层上形成第三周期性结构。
优选地,步骤S3可以包括:利用聚对苯二甲酸乙二醇酯形成承载层;以及利用纳米银、石墨烯或铜的导电网格形成第三周期性结构。
优选地,步骤S3可以包括:利用电介质材料形成承载层;以及利用透光性不同于承载层的材料形成第三周期性结构。
优选地,步骤S3可以包括:在第二基板上直接形成莫尔纹抑制层。
优选地,步骤S3可以包括:通过贴合将莫尔纹抑制层布置在第二基板上。
优选地,步骤S1可以包括准备彩膜基板;以及步骤S2可以包括在彩膜基板上布置触摸基板。
与已知的通过使第一周期性结构或第二周期性结构非均匀化的方法来减轻或者消除莫尔纹的方式不同,在上述方法中,通过提供额外的莫尔纹抑制层以减轻或者消除莫尔纹。据此,可以不改变原有的第一基板和第二基板的图案和工艺,这使得该方法容易实现的。
仅仅是出于图示和说明的目的而给出对本公开实施例的前述描述。它们不是旨在穷举或者限制本公开内容。因此,本领域技术人员将容易想到许多调整和变型。例如,本公开的构思不仅仅是针对包含具有第一周期性结构的第一基板和具有第二周期性结构的第二基板的触摸显示装置,而可以用于消除任何由至少两个周期性结构导致的莫尔纹的显示装置。具体而言,本公开的范围将由所附权利要求定义。
Claims (27)
- 一种显示面板,包括第一基板和第二基板,所述第一基板具有第一周期性结构,所述第二基板具有第二周期性结构并且布置在所述第一基板上,其特征在于,所述显示面板还包括莫尔纹抑制层,所述莫尔纹抑制层布置在所述第二基板上并且减小由所述第一和第二周期性结构形成的莫尔纹的间距。
- 根据权利要求1所述的显示面板,其特征在于,所述莫尔纹抑制层具有第三周期性结构。
- 根据权利要求2所述的显示面板,其特征在于,所述第三周期性结构与所述第一周期性结构相同;或者所述第三周期性结构与所述第二周期性结构相同。
- 根据权利要求2所述的显示面板,其特征在于,所述第三周期性结构不同于所述第一和第二周期性结构,并且具有长方形或菱形格栅。
- 根据权利要求2所述的显示面板,其特征在于,所述第三周期性结构相对于所述第一和第二周期性结构偏移布置。
- 根据权利要求2所述的显示面板,其特征在于,所述第三周期性结构相对于所述第一和第二周期性结构偏转布置。
- 根据权利要求6所述的显示面板,其特征在于,所述第三周期性结构相对于所述第一周期性结构的偏转角为-5°至5°。
- 根据权利要求2所述的显示面板,其特征在于,所述莫尔纹抑制层包括承载层和形成于所述承载层上的所述第三周期性结构。
- 根据权利要求8所述的显示面板,其特征在于,所述承载层由聚对苯二甲酸乙二醇酯形成,并且所述第三周期性结构为由纳米银、石墨烯或铜形成的导电网格。
- 根据权利要求8所述的显示面板,其特征在于,所述承载层由电介质材料形成,并且所述第三周期性结构由透光 性不同于所述承载层的材料形成。
- 根据权利要求8所述的显示面板,其特征在于,所述莫尔纹抑制层直接形成于所述第二基板上。
- 根据权利要求8所述的显示面板,其特征在于,所述莫尔纹抑制层为与所述第二基板可分离的部件。
- 根据权利要求1所述的显示面板,其特征在于,所述第一基板为彩膜基板;以及所述第二基板为触摸基板。
- 一种触摸显示装置,包括如权利要求1-13中任意一项所述的显示面板。
- 一种显示面板的制作方法,其特征在于,包括:S1、准备第一基板,其具有第一周期性结构;S2、在所述第一基板上布置第二基板,其具有第二周期性结构;以及S3、在所述第二基板上布置莫尔纹抑制层以减小由所述第一和第二周期性结构形成的莫尔纹的间距。
- 根据权利要求15所述的方法,其特征在于,所述步骤S3包括:在所述第二基板上布置所述莫尔纹抑制层,其中所述莫尔纹抑制层具有第三周期性结构。
- 根据权利要求16所述的方法,其特征在于,所述步骤S3包括:在所述第二基板上布置所述莫尔纹抑制层,其中从所述第一周期性结构或所述第二周期性结构提取所述莫尔纹抑制层的第三周期性结构。
- 根据权利要求16所述的方法,其特征在于,所述步骤S3包括:形成不同于所述第一和第二周期性结构的所述第三周期性结构,其中所述第三周期性结构具有长方形或菱形格栅。
- 根据权利要求16所述的方法,其特征在于,所述步骤S3包括:在所述第二基板上布置所述莫尔纹抑制层,以及相对于所述第一和第二周期性结构偏移布置所述第三周期性结构。
- 根据权利要求16所述的方法,其特征在于,所述步骤S3包括:在所述第二基板上布置所述莫尔纹抑制层,以及相对于所述第一和第二周期性结构偏转布置所述第三周期性结构。
- 根据权利要求20所述的方法,其特征在于,所述第三周期性结构相对于所述第一周期性结构偏转-5°至5°。
- 根据权利要求16所述的方法,其特征在于,所述步骤S3包括:准备承载层;以及在所述承载层上形成所述第三周期性结构。
- 根据权利要求22所述的方法,其特征在于,所述步骤S3包括:利用聚对苯二甲酸乙二醇酯形成所述承载层;以及利用纳米银、石墨烯或铜的导电网格形成所述第三周期性结构。
- 根据权利要求22所述的方法,其特征在于,所述步骤S3包括:利用电介质材料形成所述承载层;以及利用透光性不同于所述承载层的材料形成所述第三周期性结构。
- 根据权利要求22所述的方法,其特征在于,所述步骤S3包括:在所述第二基板上直接形成所述莫尔纹抑制层。
- 根据权利要求22所述的方法,其特征在于,所述步骤S3包括:通过贴合将所述莫尔纹抑制层布置在所述第二基板上。
- 根据权利要求15所述的方法,其特征在于,所述步骤S1包括:准备彩膜基板;以及所述步骤S2包括:在所述彩膜基板上布置触摸基板。
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| US15/127,382 US20180180932A1 (en) | 2015-07-30 | 2015-12-14 | Display panel, touch display device, method for fabricating display panel |
| EP15884918.2A EP3343331A4 (en) | 2015-07-30 | 2015-12-14 | DISPLAY PANEL, TOUCH INDICATOR AND DISPLAY PANEL MANUFACTURING METHOD |
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| US (1) | US20180180932A1 (zh) |
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| CN104978072B (zh) * | 2015-07-30 | 2019-05-10 | 合肥鑫晟光电科技有限公司 | 显示面板、触控显示装置、显示面板制作方法 |
| CN107678588B (zh) | 2017-09-27 | 2021-01-26 | 京东方科技集团股份有限公司 | 触控屏和触控显示装置 |
| CN108227252B (zh) * | 2018-01-24 | 2021-04-23 | 京东方科技集团股份有限公司 | 一种显示系统 |
| CN112967619A (zh) * | 2021-03-01 | 2021-06-15 | 深圳市志凌伟业光电有限公司 | Led触控面板及其制作方法 |
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| CN104978072A (zh) | 2015-10-14 |
| EP3343331A4 (en) | 2019-05-01 |
| CN104978072B (zh) | 2019-05-10 |
| US20180180932A1 (en) | 2018-06-28 |
| EP3343331A1 (en) | 2018-07-04 |
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