WO2019237686A1 - 柔性显示面板及其制备方法 - Google Patents

柔性显示面板及其制备方法 Download PDF

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Publication number
WO2019237686A1
WO2019237686A1 PCT/CN2018/119522 CN2018119522W WO2019237686A1 WO 2019237686 A1 WO2019237686 A1 WO 2019237686A1 CN 2018119522 W CN2018119522 W CN 2018119522W WO 2019237686 A1 WO2019237686 A1 WO 2019237686A1
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sub
pixels
pixel
display panel
flexible display
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PCT/CN2018/119522
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English (en)
French (fr)
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王丽娟
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云谷（固安）科技有限公司
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Priority to US16/716,851 priority Critical patent/US11094750B2/en
Publication of WO2019237686A1 publication Critical patent/WO2019237686A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • 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
    • G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED
    • 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
    • H10K59/1201—Manufacture or treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present application relates to the field of flexible display technology, and in particular, to a flexible display panel and a manufacturing method thereof.
  • FPDs flat panel displays
  • LCD liquid crystal displays
  • PDP plasma display panels
  • OLED organic light emitting diode
  • Most of the current display screens use three-color sub-pixels as the primary color for color display, especially the application of RGB as the three primary colors is the most common.
  • flexible displays With the development of science and technology, flexible displays have become mainstream, and flexible displays can be divided into curved displays, foldable displays, and stretchable displays.
  • a stretchable substrate can be used. When the substrate is stretched, the pixel layer on the substrate will also deform, which will affect the display effect.
  • the present application provides a flexible display panel and a method for manufacturing the same, which solves the problem that the display effect becomes worse due to the stretching of the sub-pixels during the stretching of the flexible display panel.
  • a flexible display panel provided in this application includes:
  • a plurality of pixel units each of which includes at least three color sub-pixels
  • the sub-pixels of the same color are arranged along the same preset stretching direction.
  • the shape of the pixel unit is a regular hexagon composed of six regular triangles, and each of the regular triangles constitutes one of the sub-pixels, which is located on the opposite side of the regular hexagon. Two of the sub-pixels have the same emission color.
  • two sub-pixels adjacent to each other in the regular hexagon have the same emission color.
  • two adjacent sub-pixels in the two adjacent pixel units have the same light emission color.
  • two adjacent sub-pixels of two adjacent pixel units are disposed on the same side.
  • the pixel unit includes sub-pixels of three colors of red, blue, and green.
  • the flexible display panel further includes a pixel limiting layer, and the pixel limiting layer is disposed between the sub-pixels of different light emitting colors.
  • the pixel limiting layer is made of a transparent organic material.
  • the organic material is a polymer organic silicon compound.
  • a material of the pixel limiting layer is polydimethylsiloxane.
  • the six corners of the regular hexagon are rounded.
  • the three corners of the regular triangle are rounded.
  • a method for manufacturing a flexible display panel as described above comprising: providing a substrate; and evaporating a pixel unit on the substrate, the pixel unit including at least three color sub-pixels, wherein A plurality of the above-mentioned sub-pixels are simultaneously deposited.
  • the shape of the pixel unit is a regular hexagon composed of six regular triangles.
  • Each of the regular triangles constitutes one of the sub-pixels
  • the pixel unit includes two first triangles.
  • the first sub-pixels on opposite sides, the second sub-pixels on two second opposite sides, and the third sub-pixel on two third opposite sides; wherein the multiple in the preset stretching direction
  • the sub-pixel synchronous evaporation includes: synchronously vaporizing a first sub-pixel along a first preset stretching direction, synchronously vapor-depositing a second sub-pixel along a second preset stretching direction, and along a third preset stretching direction.
  • the third sub-pixel is simultaneously vapor-deposited; wherein the first preset stretching direction is perpendicular to the first pair of sides, the second preset stretching direction is perpendicular to the second pair of sides, and the The third preset stretching direction is perpendicular to the third opposite side.
  • the technical solution of the present application is a flexible display panel and a manufacturing method thereof.
  • the flexible display panel includes a plurality of pixel units, and each pixel unit includes at least three color sub-pixels, and the same color sub-pixels are stretched along the same preset. Orientation. When the display is stretched, the sub-pixels are slightly stretched, but the emission colors of a plurality of the sub-pixels in a preset stretch direction are set to the same color. When one sub-pixel is slightly stretched, the other Two identical sub-pixels can play a compensating role, eliminating the effects of the sub-pixels being stretched, and solving the problem that the display effect becomes worse due to the stretch of the sub-pixels during the flexible display panel stretching process.
  • FIG. 1 is a schematic structural diagram of a pixel unit according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a flexible display panel according to an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a pixel unit according to an embodiment of the present application.
  • the flexible display panel includes a plurality of pixel units, and each pixel unit includes at least three color sub-pixels 1, and the plurality of pixel units are distributed in an array.
  • the sub-pixels 1 of the same color are arranged along the same preset stretching direction.
  • the display panel includes three color pixel units, namely a first pixel unit, a second pixel unit, and a third pixel unit; then the first pixel unit is arranged along the first stretching direction; the second pixel unit is along the first The two stretching directions are arranged, and the third pixel unit is arranged along the third stretching direction.
  • the flexible display panel has stretchability.
  • the preset stretch direction is the stretchable direction of the flexible display panel.
  • the sub-pixels 1 in the same preset stretch direction have the same color, which ensures that when the flexible display panel is stretched, Although the sub-pixels 1 are slightly stretched, the sub-pixels 1 of the same color in the same preset stretching direction can play a compensation role, eliminating the problem that the sub-pixels 1 are stretched and affect the display effect.
  • the emission colors of the multiple sub-pixels 1 in the preset stretching direction may be red, green, or blue, and the specific color of the sub-pixels 1 is not limited in this application.
  • the shape of the pixel unit is a regular hexagon
  • the regular hexagon is a mosaic of six regular triangles, where each regular triangle is a sub-pixel 1, so the pixel unit is six sub-pixels 1. From stitching.
  • the sub-pixels 1 where the opposite sides of the regular hexagon are located have the same light-emitting color, and the light-emitting colors of two sub-pixels 1 adjacent to each other on any side in a pixel unit are different.
  • the pixel unit has a regular hexagonal structure, and the sub-pixels 1 on the opposite sides of the regular hexagon have the same light emission color; it can be known from the structure of the pixel unit that there are three different colors in this embodiment. And has three different preset stretching directions, which are perpendicular to the three opposite sides of a regular hexagon, respectively.
  • designing the shape of the sub-pixel 1 as a regular triangle can ensure that the sub-pixel 1 is stable and difficult to deform, and the pixel unit thus designed has 6 sub-pixels synchronously, and each sub-pixel 1 is reused three times, increasing The utilization ratio of sub-pixel 1 is increased.
  • the pixel unit should include red, blue, and green, or other colors at the same time, and this application does not limit which color the pixel unit specifically includes.
  • the shape of the pixel unit may also undergo some local deformations, for example, the six corners of a regular hexagon may be made rounded to show a certain radian; and / or, the shape of the sub-pixel 1 may also be Some local deformations occur. For example, the three corners of a triangle are rounded and present a certain radian.
  • the shape of the pixel unit is not limited in this application.
  • FIG. 2 is a schematic structural diagram of a flexible display panel according to an embodiment of the present application.
  • the flexible display panel includes a plurality of pixel units, and the adjacent two sub-pixels 1 of the adjacent pixel units can have the same light emission color. This ensures that when the flexible display panel is stretched, Because the emission colors of multiple sub-pixels 1 in the preset stretching direction are the same, when one sub-pixel 1 is slightly stretched, the other two identical sub-pixels 1 can play a compensation role to avoid sub-pixels. 1 affects the display when stretched.
  • a plurality of pixel units are arranged alternately in an edge-to-edge manner, and two adjacent (same color) sub-pixels of two adjacent pixel units are edge-to-edge.
  • two adjacent sub-pixels in two adjacent pixel units can be set in a co-edge manner, and two sub-pixels of the same color can be vapor-deposited in the same frame, which is helpful to reduce the process difficulty of the mask plate. Optimize evaporation effect.
  • the pixel unit includes a first sub-pixel 2 located on two first opposite sides, a second sub-pixel 3 located on two second opposite sides, and a third sub-pixel located on two third opposite sides. 4, where the first sub-pixel 2, the second sub-pixel 3, and the third sub-pixel 4 are red, blue, and green, for example: the first sub-pixel 2 is red, the second sub-pixel 3 is blue, and the third When the sub-pixel 4 is green or the like. Therefore, three pixel colors of red, blue, and green can be ensured in one pixel unit at the same time, thereby ensuring the light emission and display effect of the display panel.
  • the sub-pixel 1 When the flexible display panel is stretched, the sub-pixel 1 will also be slightly stretched, and the adjacent sub-pixel 1 can play a compensation role, eliminating the effect of the sub-pixel 1 when it is stretched, thereby improving the flexibility of the flexible display panel. display effect.
  • the flexible display panel includes a pixel limiting layer, and the pixel limiting layer is disposed between the sub-pixels 1 of different light emitting colors in the same pixel unit.
  • the pixel limiting layer can isolate the sub-pixels 1 of different light-emitting colors and prevent the mutual influence between the sub-pixels 1 of different light-emitting colors.
  • the pixel limiting layer has stretchability and optical transparency. Because the pixel limiting layer is transparent, it is guaranteed that the pixel limiting layer does not affect the display effect of the flexible display panel.
  • the pixel limiting layer When the flexible display panel is stretched, the pixel limiting layer The stretchability of the pixel makes the pixel limiting layer stretched at the same time, which can reduce the stretching of the sub-pixel 1, so as to prevent the stretching of the sub-pixel 1 from affecting the display effect.
  • the flexible display panel may include a pixel limitation layer or may not include a pixel limitation layer, and this application does not limit whether the flexible display panel includes a pixel limitation layer.
  • the pixel limiting layer may be made of a transparent organic material, and the transparent organic material may be a polymer organic silicon compound, including polydimethylsiloxane. Polydimethylsiloxane is used as the material of the pixel limiting layer.
  • polydimethylsiloxane has high stretchability, and polydimethylsiloxane is a transparent material, the polydimethylsiloxane While not affecting the display effect of the flexible display panel, when the flexible display panel is stretched, due to the stretchability of the polydimethylsiloxane, the polydimethylsiloxane is stretched at the same time, which can reduce the When the pixel 1 is stretched, the sub-pixel 1 is prevented from being stretched to affect the display effect. And polydimethylsiloxane is stable, non-toxic and harmless.
  • the pixel limiting layer may be made of polydimethylsiloxane or other materials, and the specific material of the pixel limiting layer is not limited in this application.
  • a method for preparing a flexible display panel includes: evaporating a pixel unit on a substrate, and evaporating or sublimating a substance to be formed into a vacuum.
  • the sub-pixels 1 of different colors are vapor-deposited on the substrate. Since the light-emitting colors of the sub-pixels 1 in the preset stretching direction are the same, simultaneous evaporation can be performed, thereby reducing the number of evaporations and the process. cost.
  • the sub-pixels 1 in the preset stretching direction may be synchronously or non-synchronously deposited, and the present application does not limit whether the sub-pixels 1 in the preset stretching direction are synchronously deposited.
  • the shape of the pixel unit is a regular hexagon composed of six regular triangles, each regular triangle is a sub-pixel 1, and the sub-pixels 1 opposite to the regular hexagon have the same light emission color, In addition, the emission color of each adjacent sub-pixel 1 in a pixel unit is different.
  • the pixel unit includes a first sub-pixel 2 located on two first opposite sides of a regular hexagon, a second sub-pixel 3 located on two second opposite sides of a regular hexagon, and two third opposite sides on a regular hexagon. ⁇ third subpixel 4.
  • Synchronous evaporation of multiple sub-pixels 1 in a preset stretching direction includes: synchronously vaporizing first sub-pixels 2 along a first preset stretching direction, and the first preset stretching direction is perpendicular to the first pair of sides.
  • the second sub-pixel 3 is simultaneously vapor-deposited along the second preset stretching direction, and the second preset stretching direction is a direction perpendicular to the second opposite side;
  • the third preset stretching direction is a direction perpendicular to the third opposite side.
  • the first sub-pixels 2 in the first stretching direction, the second sub-pixels 3 in the second stretching direction, and the third sub-pixels 4 in the third stretching direction are all arranged in multiple columns.
  • the sub-pixels 1 in the same preset direction have the same color and can be vapor-deposited simultaneously, because the number of vapor-deposition is greatly reduced, and the process cost is reduced.
  • the colors of the sub-pixels 1 in different preset stretching directions may be selected according to actual needs.
  • the colors in the first preset stretching direction may be red and the second preset
  • the color in the stretching direction may be blue
  • the color in the third preset stretching direction may be green.
  • the order of evaporation of the sub-pixels 1 of the same color in different preset stretching directions may be adjusted according to actual needs.
  • the first preset stretching direction may be evaporated first.
  • Sub-pixel 1, sub-pixel 1 in the second preset stretching direction, and finally sub-pixel 1 in the third preset stretching direction in another embodiment of the present application, vapor deposition may be performed first Sub-pixel 1 in the third preset stretching direction, and then sub-pixel 1 in the first preset stretching direction, and finally sub-pixel 1 in the second preset stretching direction.
  • the order of plating the sub-pixels 1 of the same color in different preset stretching directions is not limited.

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Abstract

一种柔性显示面板及其制备方法。柔性显示面板包括：若干个像素单元，每个像素单元包括至少三种颜色的子像素（1）；其中，相同颜色的子像素（1）沿同一预设拉伸方向排布。当柔性显示面板拉伸时，子像素（1）有轻微的拉伸，但是将预设拉伸方向上的多个子像素（1）的发光颜色设置为相同的颜色，当一个子像素（1）被轻微拉伸时，另外的两个相同的子像素（1）可以起到补偿作用，消除子像素（1）被拉伸时的影响，解决了在柔性显示面板拉伸的过程中，由于子像素（1）被拉伸，从而使显示效果变差的问题。

Description

柔性显示面板及其制备方法
本申请要求2018年06月13日提交的申请号为201810610022.8的中国申请的优先权，通过引用将其全部内容并入本文。
技术领域
本申请涉及柔性显示技术领域，具体涉及一种柔性显示面板及其制备方法。
发明背景
近年来，显示器市场的中心位置逐渐由平板显示器(Flat Panel Display，FPD)所占据。利用FPD可以制造大尺寸、薄而轻的显示设备。这类FPD包括液晶显示器(Liquid Crystal Display，LCD)、等离子体显示面板(Plasma Display Panel，PDP)、有机发光二极管(Organic Light Emitting Diode，OLED)显示屏等。目前的显示屏绝大多数都是采用三色子像素作为基色来进行色彩显示的，尤其是以RGB作为三基色的应用最为普遍。通过对红R、绿G、蓝B三个颜色通道的变化以及它们之间的相互叠加来实现色彩的变化，是目前应用最为广泛的颜色系统之一。随着科学技术的发展，柔性显示器成为主流，柔性显示器又可以分为弧形显示器、可折叠显示器和可拉伸显示器。为了获得可拉伸的特性，可使用可拉伸基底，当基底被拉伸时，基底上的像素层也会发生形变，而影响显示效果。
发明内容
有鉴于此，本申请提供了一种柔性显示面板及其制备方法，解决了在柔性显示面板拉伸的过程中，由于子像素被拉伸，从而使显示效果变差的问题。
本申请提供的一种柔性显示面板包括：
若干个像素单元，每个所述像素单元包括至少三种颜色的子像素；
其中，相同颜色的子像素沿同一预设拉伸方向排布。
在一个实施方式中，所述像素单元的形状为由六个正三角形拼接组成的正六边形，其中的每个所述正三角形构成一个所述子像素，位于所述正六边 形中相对边的两个所述子像素具有相同的发光颜色。
在一个实施方式中，所述正六边形中任一对边相邻的两个子像素的发光颜色相同。
在一个实施方式中，相邻的两个所述像素单元中相邻的两个所述子像素的发光颜色相同。
在一个实施方式中，相邻的两个所述像素单元中相邻的两个子像素共边设置。
在一个实施方式中，所述像素单元包括红色、蓝色和绿色三种颜色的子像素。
在一个实施方式中，所述柔性显示面板进一步包括像素限制层，所述像素限制层设置于不同发光颜色的所述子像素之间。
在一个实施方式中，所述像素限制层的采用透明的有机材料制成。
在一个实施方式中，所述有机材料为高分子有机硅化合物。
在一个实施方式中，所述像素限制层的材质为聚二甲基硅氧烷。
在一个实施方式中，所述正六边形的六个角为圆角。
在一个实施方式中，所述正三角形的三个角为圆角。
一种如上述所述的柔性显示面板的制备方法，包括：提供基板；在所述基板上蒸镀像素单元，所述像素单元包括至少三种颜色的子像素，其中，在预设拉伸方向上的多个所述子像素同步蒸镀。
在一个实施方式中，所述像素单元的形状为由六个正三角形拼接组成的正六边形，其中的每个所述正三角形构成一个所述子像素，所述像素单元包括位于两个第一对边的第一子像素、位于两个第二对边的第二子像素以及位于两个第三对边的第三子像素；其中，所述在所述预设拉伸方向上的多个所述子像素同步蒸镀包括：沿第一预设拉伸方向同步蒸镀第一子像素，沿第二预设拉伸方向同步蒸镀第二子像素，以及沿第三预设拉伸方向同步蒸镀第三子像素；其中，所述第一预设拉伸方向相对于所述第一对边垂直，所述第二预设拉伸方向相对于所述第二对边垂直，所述第三预设拉伸方向相对于所述第三 对边垂直。
本申请技术方案一种柔性显示面板及其制备方法，该柔性显示面板包括若干个像素单元，每个像素单元至少包括三种颜色的子像素，将相同颜色的子像素沿同一的预设拉伸方向排布。当显示器拉伸时，子像素有轻微的拉伸，但是将预设拉伸方向上的多个所述子像素的发光颜色设置为相同的颜色，当一个子像素被轻微拉伸时，另外的两个相同的子像素可以起到补偿作用，消除子像素被拉伸时的影响，解决了在柔性显示面板拉伸的过程中，由于子像素被拉伸，从而使显示效果变差的问题。
附图简要说明
图1所示为本申请一实施例提供的一种像素单元的结构示意图。
图2所示为本申请一实施例提供的一种柔性显示面板的结构示意图。
实施本申请的方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
图1所示为本申请一实施例提供的一种像素单元的结构示意图。
如图1所示，柔性显示面板包括若干个像素单元，每个像素单元又包括至少三种颜色的子像素1，若干个像素单元呈阵列分布。其中，相同颜色的子像素1沿同一的预设拉伸方向排布。例如所述显示面板包括三种颜色的像素单元，分别为第一像素单元、第二像素单元、第三像素单元；则第一像素单元沿第一拉伸方向排布；第二像素单元沿第二拉伸方向排布，第三像素单元沿第三拉伸方向排布。
柔性显示面板具有可拉伸特性，预设拉伸方向是该柔性显示面板可拉伸的方向，在同一预设拉伸方向上的子像素1具有相同的颜色，保证当柔性显 示面板拉伸时，虽然子像素1有轻微的拉伸，同一预设拉伸方向上相同颜色的子像素1能够起到补偿作用，消除子像素1被拉伸而影响显示效果的问题。
可以理解，在预设拉伸方向上的多个子像素1的发光颜色可以是红色、绿色或蓝色等，本申请对子像素1的具体颜色不做限定。
本申请一实施例中，像素单元的形状为正六边形，该正六边形是由六个正三角形拼接而成的，其中每个正三角形为一个子像素1，所以像素单元为六个子像素1拼接而成。该正六边形对边所在的子像素1具有相同的发光颜色，且一个像素单元中任意边对边相邻的两个子像素1的发光颜色都不相同。在本实施例中，像素单元具有正六边形结构，且在正六边形对边所在的子像素1具有相同的发光颜色；由上述像素单元的结构可知，在该实施例中具有三种不同颜色的子像素，并具有三种不同的预设拉伸方向，这三种不同的预设拉伸方向分别垂直于正六边形的三个对边。
在本申请实施例中，将子像素1的形状设计成正三角形，能够保证子像素1稳定，不易变形，并且这样设计的像素单元同步拥有6个子像素，且每个子像素1被重复使用三次，增加了子像素1的利用率。由于正六边形中相对边的两个子像素1具有相同的发光颜色，同一预设拉伸方向排布的多个子像素1两两对称，使得显示器被拉伸时，一个子像素1被轻微的拉伸，由于预设拉伸方向上的多个子像素1的发光颜色相同，因此另外的两个相同的子像素1可以起到补偿作用，消除子像素1被拉伸时的影响，解决了在柔性显示面板拉伸的过程中，由于子像素1被拉伸，使显示效果变差的问题。
可以理解，像素单元应同时包括红色、蓝色和绿色，或包括其它颜色等，本申请对像素单元具体包括何种颜色不做限定。
还应当理解，像素单元组中不同对边上分布的子像素1发出何种颜色的光，可以根据实际需求以及制作工艺来选择，本申请对像素单元组中不同对边上分布的子像素1发出何种颜色的光不作限定。
还应当理解，在实际应用中，像素单元的形状还可以发生局部一些变形，例如正六边形的六个角可做成圆角，呈现一定的弧度；和/或，子像素1 的形状也可以发生局部一些变形，例如三角形三个角做成圆角，呈现一定的弧度，本申请对像素单元的形状不作限定。
图2所示为本申请一实施例提供的一种柔性显示面板的结构示意图。
如图2所示，由上述实施例可知，柔性显示面板包括多个像素单元，相邻的像素单元的相邻的两个子像素1的发光颜色可相同，这样保证当柔性显示面板被拉伸时，由于预设拉伸方向上的多个所述子像素1的发光颜色相同，当一个子像素1被轻微拉伸时，另外的两个相同的子像素1可以起到补偿作用，以免子像素1被拉伸时影响显示效果。
本申请一实施例中，多个像素单元之间分别以边对边的方式交错排布，相邻的两个所述像素单元中相邻的两个(相同颜色)子像素以边对边的方式设置，相邻的两个所述像素单元中相邻的两个子像素可以采用共边的方式设置，两个相同颜色的子像素可以同框蒸镀，有利于降低掩膜版的工艺难度，优化蒸镀效果。
可以理解，本申请对正六边形和正三角形的具体的大小不做限定。
本申请一实施例中，像素单元包括位于两个第一对边的第一子像素2、位于两个第二对边的第二子像素3和位于两个第三对边的第三子像素4，其中第一子像素2、第二子像素3和第三子像素4分别为红色、蓝色和绿色，例如：第一子像素2为红色、第二子像素3为蓝色、第三子像素4为绿色等情况。因此可以保证一个像素单元中同时具有红色、蓝色和绿色这三种颜色色，从而保证显示面板的发光和显示的效果。当柔性显示面板被拉伸时，子像素1也会有轻微的拉伸，相邻的子像素1可以起到补偿作用，消除子像素1被拉伸时的影响，从而提高了柔性显示面板的显示效果。
本申请一实施例中，柔性显示面板包括像素限制层，该像素限制层设置在同一像素单元中不同发光颜色的子像素1之间。像素限制层能够隔离开不同发光颜色的子像素1，防止不同发光颜色的子像素1之间的相互影响。像素限制层具有可拉伸性能和光学透明性能，由于像素限制层为透明的，保证了像素限制层不影响柔性显示面板显示效果的前提下，当柔性显示面板被拉伸 时，由于像素限制层的可拉伸性能，使得像素限制层同时被拉伸，进而可以减少子像素1被拉伸的情况，以免子像素1的拉伸影响显示效果。
可以理解，柔性显示面板可以包括像素限制层，也可以不包括像素限制层，本申请对柔性显示面板是否包括像素限制层不做限定。
本申请一实施例中，像素限制层可以采用透明的有机材料制成，该透明的有机材料可以为高分子有机硅化合物，包括聚二甲基硅氧烷。采用聚二甲基硅氧烷作为像素限制层的材质，由于聚二甲基硅氧烷具有高度可拉伸性能，且聚二甲基硅氧烷为透明材质，在聚二甲基硅氧烷不影响柔性显示面板的显示效果的同时，当柔性显示面板被拉伸时，由于聚二甲基硅氧烷的可拉伸性能，使得聚二甲基硅氧烷同时被拉伸，可以减少子像素1被拉伸的情况，防止子像素1被拉伸而影响显示效果。且聚二甲基硅氧烷稳定，无毒无害。
可以理解，像素限制层可以由聚二甲基硅氧烷材质制成也可以由其它材质制成，本申请对像素限制层的具体材质不做限定。
本申请一实施例中，柔性显示面板的制备方法包括：在基板上蒸镀像素单元，蒸镀是将待成膜的物质置于真空中进行蒸发或升华。本实施例中将不同颜色的子像素1蒸镀在基板上，由于在预设的拉伸方向上的子像素1的发光颜色相同，可以同步蒸镀，因此减少了蒸镀次数，降低了工艺成本。
可以理解，在预设拉伸方向上的子像素1可以同步蒸镀也可以不同步蒸镀，本申请对预设拉伸方向上的子像素1是否同步蒸镀不做限定。
本申请一实施例中，像素单元的形状为六个正三角形拼接组成的正六边形，每个正三角形为一个子像素1，该正六边形对边所在的子像素1具有相同的发光颜色，且一个像素单元中相邻的每个子像素1的发光颜色都不相同。像素单元包括位于正六边形的两个第一对边的第一子像素2，位于正六边形的两个第二对边的第二子像素3和位于正六边形的两个第三对边的第三子像素4。在预设拉伸方向上的多个子像素1同步蒸镀包括：沿着第一预设拉伸方向同步蒸镀第一子像素2，第一预设拉伸方向为与第一对边垂直的方向；沿着第 二预设拉伸方向同步蒸镀第二子像素3，第二预设拉伸方向为与第二对边垂直的方向；沿着第三预设拉伸方向同步蒸镀第三子像素4，第三预设拉伸方向为与第三对边垂直的方向。第一拉伸方向上的第一子像素2、第二拉伸方向上的第二子像素3和第三拉伸方向上的第三子像素4均为多列排布。在同一预设方向上的子像素1具有相同的颜色，可以同时进行蒸镀，因大大地减少了蒸镀次数，降低了工艺成本。
应当理解，不同的预设拉伸方向上的子像素1的颜色可以根据实际需求进行选择，在本申请其他实施例中，第一预设拉伸方向上的颜色可以为红色、第二预设拉伸方向上的颜色可以为蓝色、第三预设拉伸方向上的颜色可以为绿色。
还应当理解，蒸镀不同的预设拉伸方向上的相同颜色的子像素1的顺序可以根据实际需求进行调整，在本申请其他实施例中，可以先蒸镀第一预设拉伸方向上的子像素1、再蒸镀第二预设拉伸方向上的子像素1、最后蒸镀第三预设拉伸方向上的子像素1，在本申请另一实施例中，可以先蒸镀第三预设拉伸方向上的子像素1、再蒸镀第一预设拉伸方向上的子像素1、最后蒸镀第二预设拉伸方向上的子像素1，因此本申请对蒸镀不同的预设拉伸方向上的相同颜色的子像素1的顺序不作限定。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换等，均应包含在本申请的保护范围之内。

Claims (14)

  1. 一种柔性显示面板，包括：若干个像素单元，每个所述像素单元包括至少三种颜色的子像素；
    其中相同颜色的子像素沿同一预设拉伸方向排布。
  2. 根据权利要求1所述的柔性显示面板，其中，所述像素单元的形状为由六个正三角形拼接组成的正六边形，其中的每个所述正三角形构成一个所述子像素，位于所述正六边形中相对边的两个所述子像素具有相同的发光颜色。
  3. 根据权利要求2所示的柔性显示面板，其中，所述正六边形中任意对边相邻的两个子像素的发光颜色不同。
  4. 根据权利要求2所述的柔性显示面板，其中，相邻的两个所述像素单元中相邻的两个子像素的发光颜色相同。
  5. 根据权利要求4所述的柔性显示面板，其中，相邻的两个所述像素单元中相邻的两个子像素共边设置。
  6. 根据权利要求1所述的柔性显示面板，其中，所述像素单元包括红色、蓝色和绿色三种颜色的子像素。
  7. 根据权利要求1所述的柔性显示面板，其中，所述柔性显示面板进一步包括像素限制层，所述像素限制层设置于不同发光颜色的所述子像素之间。
  8. 根据权利要求7所述的柔性显示面板，其中，所述像素限制层采用透明的有机材料制成。
  9. 根据权利要求7所述的柔性显示面板，其中，所述有机材料为高分子有机硅化合物。
  10. 根据权利要求8所述的柔性显示面板，其中，所述像素限制层的材质为聚二甲基硅氧烷。
  11. 根据权利要求2所述的柔性显示面板，其中，所述正六边形的六个角 为圆角。
  12. 根据权利要求2所述的柔性显示面板，其中，所述正三角形的三个角为圆角。
  13. 一种柔性显示面板的制备方法，包括：
    提供基板；
    在所述基板上蒸镀像素单元，所述像素单元包括至少三种颜色的子像素，其中，在预设拉伸方向上的多个所述子像素同步蒸镀。
  14. 根据权利要求13所述的制备方法，所述像素单元的形状为由六个正三角形拼接组成的正六边形，其中的每个所述正三角形构成一个所述子像素，所述像素单元包括位于两个第一对边的第一子像素、位于两个第二对边的第二子像素以及位于两个第三对边的第三子像素；
    其中，所述在所述预设拉伸方向上的多个所述子像素同步蒸镀包括：
    沿第一预设拉伸方向同步蒸镀第一子像素，沿第二预设拉伸方向同步蒸镀第二子像素，以及沿第三预设拉伸方向同步蒸镀第三子像素；
    其中，所述第一预设拉伸方向相对于所述第一对边垂直，所述第二预设拉伸方向相对于所述第二对边垂直，所述第三预设拉伸方向相对于所述第三对边垂直。
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