WO2020107642A1 - 一种折叠显示屏 - Google Patents

一种折叠显示屏 Download PDF

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Publication number
WO2020107642A1
WO2020107642A1 PCT/CN2019/070201 CN2019070201W WO2020107642A1 WO 2020107642 A1 WO2020107642 A1 WO 2020107642A1 CN 2019070201 W CN2019070201 W CN 2019070201W WO 2020107642 A1 WO2020107642 A1 WO 2020107642A1
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Prior art keywords
sub
pixel
pixels
display screen
bending
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English (en)
French (fr)
Inventor
赵瑾荣
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to US16/469,155 priority Critical patent/US10868084B2/en
Publication of WO2020107642A1 publication Critical patent/WO2020107642A1/zh
Anticipated expiration legal-status Critical
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    • 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
    • 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
    • G09F9/35—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 liquid crystals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/17—Passive-matrix OLED displays
    • H10K59/173—Passive-matrix OLED displays comprising banks or shadow masks
    • 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
    • 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

Definitions

  • the invention relates to the field of display, in particular to a folding display screen.
  • the display screen is made up of many pixels, and in order for each individual pixel to display various colors, it needs to be decomposed into three sub-pixels of red, green, and blue, which are one level lower than the pixels. That is to say, the three sub-pixels constitute a whole, that is, color pixels. When different colors need to be displayed, the three sub-pixels emit light at different brightnesses. Because the surface area of the sub-pixels is very small, they will be visually mixed into the desired color.
  • the arrangement of sub-pixels is red blue green (Red, Green, Blue; RGB) arrangement, pixel arrangement (Pentile), diamond arrangement (Diamond).
  • the RGB arrangement is the most standard arrangement. It divides a square pixel into three equal parts, and each block is given a different color, so that a color pixel can be formed. In fact, most LCD monitors use standard RGB sub-pixel arrangements. Its advantage is that the pixel independence is high, each pixel can display all colors by itself. But the disadvantage is that to make m*n displays, a total of 3m*n pixels need to be made.
  • the RGB pixel arrangement is different from the standard RGB arrangement of single pixels.
  • the standard RGB arrangement of pixels is composed of three sub-pixels of red, green and blue, while the single pixel of Pentile only has "red-green” or "blue-green” sub-pixels Pixel composition.
  • PenTile also displays 3x3 pixels.
  • the RGB pixels have only 6 sub-pixels in the horizontal direction, while the standard RGB has 9 sub-pixels, which reduces the number of sub-pixels by 1/3.
  • the "shared sub-pixels" between adjacent pixels in the RGB pixels can reduce the sub-pixels by 1/3 while keeping the total pixels unchanged, thereby achieving the result of displaying 3x3 full-color pixels.
  • the arrangement of sub-pixels in the bending area and non-bending area of the display is basically the same as the sub-pixel pattern.
  • the sub-pixels in the bending area are arranged in Pentile, and the graphics are in diagonal squares.
  • the TFT films in the bending area are subjected to external tension and pressure much more than the non-bending area, and when the bending portion crosses the diagonal of the square, the sub-pixel
  • the square diagonal bumps are prone to stress concentration, and it is easy to cause the electroluminescent layer at this position (Electro-Luminescence, EL) or Thin Film Encapsulation (TFE) has fallen off.
  • EL Electro-Luminescence
  • TFE Thin Film Encapsulation
  • the object of the present invention is to provide a folding display screen to solve the problem of stress concentration of sharp corners or bumps of sub-pixels located in the bending area, and thereby improve the technology of the electroluminescent layer or the thin film packaging layer in the bending area falling off problem.
  • the invention provides a folding display screen, which includes two non-bending areas and bending areas.
  • the folding display screen includes more than two pixel units, and each of the pixel units includes three sub-pixels, which are located in the bending area Of the sub-pixel graphics are elliptical or curved quadrilateral; the sub-pixel graphics located in the non-bending area are diamond-shaped.
  • the curved quadrilateral includes two curved edges arranged opposite to each other; and two linear edges parallel to each other, or two other curved edges arranged opposite to each other.
  • At least one bending axis is formed in the bending area and passes through at least one sub-pixel in sequence.
  • the width of the bending area is 2 ⁇ times the bending radius.
  • the pixel units are arranged in an array.
  • the pixel unit includes a first sub-pixel and a second sub-pixel spaced apart and arranged in an array; a third sub-pixel is located between two adjacent first sub-pixels, and is located between two adjacent Between the second sub-pixels.
  • first sub-pixels and the second sub-pixels are arranged in a line and arranged at equal intervals.
  • the surface area of the second subpixel is smaller than the surface area of the first subpixel; the surface area of the third subpixel is smaller than the surface area of the second subpixel.
  • the first sub-pixel is used to display blue; the second sub-pixel is used to display red; and the third sub-pixel is used to display green.
  • the technical effect of the present invention is that the sub-pixel graphics located in the bending area are elliptical or curved quadrilateral, which can enhance the ability of the sub-pixels located in the bending area to withstand stress during the bending process and prevent electroluminescence in the bending area
  • the layer or thin film encapsulation layer falls off, thereby ensuring the reliability of the display device and improving the quality of the product.
  • FIG. 1 is a schematic structural diagram of a sub-pixel having an ellipse shape provided by an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a sub-pixel with a curved quadrilateral according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a curved quadrilateral provided by an embodiment of the present invention.
  • An embodiment of the present invention provides a folding display screen. Each will be described in detail below.
  • this embodiment provides a folding display screen including a bending area 100 and two non-bending areas 200.
  • the folding display screen includes more than two pixel units 1, and the pixel units 1 are arranged in a row In the array, each pixel unit 1 includes three sub-pixels.
  • the sub-pixel pattern in the bending area 100 is an ellipse or a curved quadrilateral 101; the sub-pixel pattern in the non-bending area 200 is a diamond shape.
  • the folding display screen When the folding display screen is bent, at least one bending axis 2 is formed in the bending area and passes through at least one sub-pixel in sequence.
  • half of the distance between the two non-bending areas 200 is the bending radius; when the folding display screen is flat, the width of the bending area 100 is the bending radius 2 ⁇ times, preferably, the width of the bending zone 100 is 20 mm, but it is not specifically limited, and those skilled in the art can set it according to actual needs.
  • the sub-pixel pattern in the bending area 100 is elliptical, so that the sub-pixels can avoid sharp corners or convex points, and the bending axis 2 can effectively avoid stress concentration when passing through the sub-pixels.
  • the graphics of the sub-pixels can be round or elliptical, as long as they can effectively avoid stress concentration, enhance the ability of the sub-pixels in the bending zone 100 to withstand stress during bending, and prevent the bending zone
  • the electroluminescent layer or the thin film encapsulation layer is peeled off, thereby ensuring the reliability of the display device and improving the quality of the product.
  • the first sub-pixel 11 and the second sub-pixel 12 are arranged at intervals and arranged in an array; when the first sub-pixel 11 and the second sub-pixel 12 are on the same bending axis 2, this can make the color distribution of the pixels in the same direction More uniform; the third sub-pixel 13 is located between two adjacent first sub-pixels 11 and between two adjacent second sub-pixels 12, so that the color of the pixel structure can be further displayed more uniformly .
  • the graphics of the sub-pixels located in the bending region 100 may be composed of ellipses, that is, all the sub-pixel graphics are elliptical.
  • the graphics of the sub-pixels can also be circular, in order to make the color of the pixel structure more uniform and the ability of the sub-pixels to withstand stress during bending, which can further prevent the electroluminescent layer or thin-film encapsulation layer in the bending area Fall off.
  • the three sub-pixels are respectively used to display three colors of red (R), green (G), and blue (B), wherein the first sub-pixel 11 and the second sub-pixel 12 are arranged in a line and are arranged at equal intervals;
  • the three sub-pixels 13 are located between two adjacent first sub-pixels 11 and between two adjacent second sub-pixels 12, so that the color distribution of the pixel unit 1 is more uniform and the color effect is better.
  • a plurality of bending axes 2 are provided in the sub-pixel area and pass through at least one sub-pixel sequentially, each bending axis 2 is parallel to each other.
  • the surface area of the second sub-pixel 12 is smaller than the surface area of the first sub-pixel 11
  • the surface area of the third sub-pixel 13 is smaller than the second sub-pixel 12
  • any two adjacent sub-pixels display different colors.
  • the first sub-pixel 11 is used to display blue
  • the second sub-pixel is used to display red
  • the third sub-pixel 13 is used to display green.
  • the pixel unit 1 may be composed of a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13. It is only shown here as an example, and other combinations can be selected to constitute the pixel unit 1 according to actual needs.
  • the sub-pixels By setting the sub-pixels to be elliptical, the overall capacity of the sub-pixels in the bending zone 100 to withstand stress during the bending process can be ensured to ensure the reliability of the display device and meet the reliability requirements of the product.
  • the sub-pixel pattern in the bending area 100 is a curved quadrilateral 101, and the curved quadrilateral includes two curved sides 1011 opposite to each other; and two linear sides 1012 parallel to each other, or two other Relatively set curve side 1011.
  • the curved quadrilateral may be composed of two curved sides 1011 and two straight sides 1012. Of course, it may also be composed of four curved sides 1011.
  • the shape of the figure is a curved quadrilateral or a curved polygon, which is not specifically limited here.
  • the sub-pixels are located in the bending area 100, stress concentration can be effectively avoided, and the ability of the sub-pixels located in the bending area 100 to withstand stress during the bending process can be enhanced to prevent the electroluminescent layer or film packaging in the bending area The layer is peeled off, thereby ensuring the reliability of the display device and improving the quality of the product.
  • the first sub-pixel 11 and the second sub-pixel 12 are arranged at intervals and arranged in an array; when the first sub-pixel 11 and the second sub-pixel 12 are on the same bending axis 2, this can make the color distribution of the pixels in the same direction More uniform; the third sub-pixel 13 is located between two adjacent first sub-pixels 11 and between two adjacent second sub-pixels 12, so that the color of the pixel structure can be further displayed more uniformly .
  • the graphics of the sub-pixels located in the bending region 100 may be a curved quadrilateral or an ellipse.
  • the graphics of the first sub-pixel 11 and the second sub-pixel 12 can be set as a curved quadrilateral, and the third sub-pixel 13 can be set as an ellipse, so that the color of the pixel structure can be displayed more uniformly.
  • the ability to withstand stress during the bending process can further prevent the electroluminescent layer or the thin-film encapsulation layer in the bending region from falling off.
  • the three sub-pixels are respectively used to display three colors of red (R), green (G), and blue (B), wherein the first sub-pixel 11 and the second sub-pixel 12 are arranged in a line and are arranged at equal intervals;
  • the three sub-pixels 13 are located between two adjacent first sub-pixels 11 and between two adjacent second sub-pixels 12, so that the color distribution of the pixel unit 1 is more uniform and the color effect is better.
  • a plurality of bending axes 2 are provided in the sub-pixel area and pass through at least one sub-pixel sequentially, each bending axis 2 is parallel to each other.
  • the surface area of the second sub-pixel 12 is smaller than the surface area of the first sub-pixel 11
  • the surface area of the third sub-pixel 13 is smaller than the second sub-pixel 12
  • any two adjacent sub-pixels display different colors.
  • the first sub-pixel 11 is used to display blue
  • the second sub-pixel is used to display red
  • the third sub-pixel 13 is used to display green.
  • the pixel unit 1 may be composed of a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13. It is only shown here as an example, and other combinations can be selected to constitute the pixel unit 1 according to actual needs.
  • the sub-pixels By setting the sub-pixels as a curved quadrilateral, the overall capacity of the sub-pixels in the bending zone 100 to withstand stress during the bending process can be ensured to ensure the reliability of the display device and meet the reliability requirements of the product.
  • the graphics of the sub-pixels are arranged in the pixel definition layer and the OLED, the pattern of the anode layer depends on the product requirements, and the pixel area and aperture ratio depend on the product PPI and process capability.
  • the pixel-defining layer can use the usual design materials as usual, and can use organic photoresist materials such as DL-1000 or DL-1001C, or it can be manufactured by using a common photolithography process.
  • OLED can use inkjet printing process or evaporation process, and the FMM required for evaporation can be made by etching, electroforming, laser or other new processes.
  • there is no need to add additional Mask just change the existing PDL Mask and FMM Mask can be designed.
  • the display device in this embodiment may be an LCD or an OLED.
  • the structure of the display device other than the pixel structure and the pixel pattern is the same as that in the prior art, and details are not repeated here.

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Abstract

本发明提供一种折叠显示屏，包括弯折区与两个非弯折区，所述折叠显示屏包括两个以上像素单元，每一所述像素单元包括三个子像素，位于所述弯折区的子像素图形为椭圆形或曲线四边形；位于所述非弯折区的子像素图形为菱形。将位于弯折区的子像素图形为椭圆形或曲线四边形，可以增强位于弯折区的子像素在弯折过程中承受应力的能力，防止弯折区的电致发光层或者薄膜封装层脱落，进而确保显示装置的可靠性，提高产品的品质。

Description

一种折叠显示屏 技术领域
本发明涉及显示领域，尤其涉及一种折叠显示屏。
 背景技术
显示屏是由许许多多的像素构成的，而为了让每一个单独的像素可以显示出各种颜色，就需要把它分解为红绿蓝三个比像素更低一级的子像素。也就是说，三个子像素构成一个整体，即彩色像素。当需要显示不同颜色的时候，三个子像素分别以不同的亮度发光，由于子像素的表面积非常小，在视觉上就会混合成所需要的颜色。子像素排列方式有红蓝绿（Red, Green, Blue; RGB）排列,像素排列（Pentile），菱形排列（Diamond）。
RGB 排列是最标准的排列方式，它把一个方块形的像素，平均分成三等分，每一块赋予不同的颜色，这样就可以构成一个彩色像素。事实上，绝大多数的液晶显示器，采用的都是标准RGB子像素排列。它的好处是像素独立性高，每一个像素都可以自己显示所有的颜色。但缺点是要制作 m*n 的显示器，总共需要制作3m*n个像素。
RGB像素排列与标准 RGB 排列单个像素点是不一样的，标准 RGB 排列的像素点是由红绿蓝三个子像素组成的，而Pentile的单个像素点只有“红绿”或者“蓝绿”两个子像素点组成。PenTile与标准 RGB 子像素排列对比，同样显示 3x3 个像素，RGB像素在水平方向只做了6个子像素，而标准RGB做了9个，子像素数量减少了1/3。RGB像素中相邻像素之间的“共用子像素”可以缩减1/3的子像素而保持总像素不变，进而达到显示3x3全彩色像素的结果。
目前，为了满足未来的折叠显示产品更小弯折半径的需求，需要不断地就显示屏薄膜晶体管（Thin Film Transistor, TFT）结构设计进行创新及专利布局，在目前的柔性显示屏产品设计中，显示屏的弯折区域和非弯折区域的子像素排列方式和子像素图形基本上一样，弯折区域和非弯折区域的子像素均采用Pentile排布，图形采用斜正方形。但是在产品的实际折叠过程中，弯折区域TFT各膜层要承受来自外部拉力和压力的作用比非弯折区域要大得多，且当弯折部穿越正方形的对角线时，子像素的方形对角凸点容易应力集中，容易引发该位置的电致发光层 (Electro-Luminescence，EL)或者薄膜封装层（Thin Film Encapsulation, TFE）发生脱落。
 技术问题
本发明的目的在于，提供一种折叠显示屏，以解决位于弯折区的子像素的尖角或凸点应力集中的问题，进而改善弯折区的电致发光层或者薄膜封装层脱落的技术问题。
 技术解决方案
本发明提供一种折叠显示屏，包括两个非弯折区与弯折区，所述折叠显示屏包括两个以上像素单元，每一所述像素单元包括三个子像素，位于所述弯折区的子像素图形为椭圆形或曲线四边形；位于所述非弯折区的子像素图形为菱形。
进一步地，所述曲线四边形包括两条彼此相对设置的曲线边；以及两条彼此平行的直线边，或者，另外两条彼此相对设置的曲线边。
进一步地，所述折叠显示屏被弯折时，在弯折区形成至少一弯折轴线，依次经过至少一子像素。
进一步地，当所述折叠显示屏被弯折时，两个非弯折区距离的一半为弯折半径。
进一步地，当所述折叠显示屏被平置时，所述弯折区的宽度为所述弯折半径的2π倍。
进一步地，所述像素单元排成阵列。
进一步地，所述像素单元包括第一子像素与第二子像素间隔设置且排布成阵列；第三子像素，位于两个相邻的第一子像素之间，且位于两个相邻的第二子像素之间。
进一步地，所述第一子像素与所述第二子像素排成一行且等距离间隔设置。
进一步地，所述第二子像素的表面积小于所述第一子像素的表面积；所述第三子像素的表面积小于所述第二子像素的表面积。
进一步地，所述第一子像素用于显示蓝色；所述第二子像素用于显示红色；所述第三子像素用于显示绿色。
 有益效果
本发明的技术效果在于，将位于弯折区的子像素图形为椭圆形或曲线四边形，可以增强位于弯折区的子像素在弯折过程中承受应力的能力，防止弯折区的电致发光层或者薄膜封装层脱落，进而确保显示装置的可靠性，提高产品的品质。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供子像素的图形为椭圆形的结构示意图；
图2是本发明实施例提供子像素的图形为曲线四边形的结构示意图；
图3是本发明实施例提供曲线四边形的结构示意图。
附图部件标识如下：
1 像素单元；2弯折轴线；
11第一子像素；12第二子像素；13第三子像素；
100弯折区；200非弯折区；
101曲线四边形；曲线1011；直线1012。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域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，都属于本发明保护的范围。
本发明说明书中使用的术语仅用来描述特定实施方式，而并不意图显示本发明的概念。除非上下文中有明确不同的意义，否则，以单数形式使用的表达涵盖复数形式的表达。在本发明说明书中，应理解，诸如“包括”、“具有”以及“含有”等术语意图说明存在本发明说明书中揭示的特征、数字、步骤、动作或其组合的可能性，而并不意图排除可存在或可添加一个或多个其他特征、数字、步骤、动作或其组合的可能性。附图中的相同参考标号指代相同部分。
本发明实施例提供一种折叠显示屏。以下将分别进行详细说明。
如图1~2所示，本实施例提供一种折叠显示屏，包括弯折区100与两个非弯折区200，所述折叠显示屏包括两个以上像素单元1，像素单元1排成阵列，每一像素单元1包括三个子像素，位于弯折区100的子像素图形为椭圆形或曲线四边形101；位于非弯折区200的子像素图形为菱形。
所述折叠显示屏被弯折时，在弯折区形成至少一弯折轴线2，依次经过至少一子像素。当所述折叠显示屏被弯折时，两个非弯折区200距离的一半为弯折半径；当所述折叠显示屏被平置时，弯折区100的宽度为所述弯折半径的2π倍，优选地，所述弯折区100的宽度为20mm，但不作具体的限定，本领域技术人员可以根据实际需求进行设置。
如图1所示，位于弯折区100的子像素图形为椭圆形，这样可以使所述子像素避免尖角或者凸点，弯折轴线2经过子像素时，可以有效避免应力集中。子像素的图形除了可以为椭圆形之外，还可以是圆形，只要可以有效地避免应力集中，增强位于弯折区100的子像素在弯折过程中承受应力的能力，防止弯折区的电致发光层或者薄膜封装层脱落，进而确保显示装置的可靠性，提高产品的品质。
第一子像素11和第二子像素12间隔设置且排布成阵列；当第一子像素11和第二子像素12同一条弯折轴线2上，这样可以使得像素在同一方向上的颜色分布更均匀；第三子像素13位于两个相邻的第一子像素11之间，且位于两个相邻的第二子像素12之间，这样可以进一步地使得像素结构的颜色显示得更加均匀。
在本实施例中，位于弯折区100的子像素的图形都可以由椭圆形组成的，即所有的子像素图形都是椭圆形。子像素的图形也可以是圆形，目的为了使得像素结构的颜色显示得更加均匀以及子像素在弯折过程中承受应力的能力，可以进一步地防止弯折区的电致发光层或者薄膜封装层脱落。
具体地，三个子像素分别用于显示红(R)、绿(G)、蓝(B)三种颜色，其中第一子像素11和第二子像素12排成一行且等距离间隔设置；第三子像素13位于两个相邻的第一子像素11之间，且位于两个相邻的第二子像素12之间，这样可以使像素单元1的颜色分布更加均匀，色彩效果较佳。当多条弯折轴线2设于子像素区中，同时经过依次经过至少一子像素时，每一弯折轴线2互相平行。
为了进一步使像素区1的颜色分布均匀及色彩效果更佳，本实施例中设置第二子像素12的表面积小于第一子像素11的表面积，第三子像素13的表面积小于第二子像素12的表面积，此外，任意两个相邻的所述子像素显示的颜色不同。
第一子像素11是用于显示蓝色，第二子像素是用于显示显示红色，第三子像素13是用于显示绿色。像素单元1可以由第一子像素11和第二子像素12及第三子像素13构成。这里仅仅作为示例示出，可以根据实际需求选择其他的组合方式来构成像素单元1。通过将子像素设置为椭圆形，可以使位于弯折区100的子像素在弯折过程中承受应力的整体能力，确保显示器件的可靠性，满足产品的可靠性需求。
如图2~3所示，位于弯折区100的子像素图形为曲线四边形101，曲线四边形包括两条彼此相对设置的曲线边1011；以及两条彼此平行的直线边1012，或者另外两条彼此相对设置的曲线边1011。具体地，曲线四边形可以由两条曲线边1011及两条直线边1012构成，当然，也可以是由四条曲线边1011构成。其中，图形的形状为曲线四边形或者曲线多边形，这里不做具体的限定。只要能使子像素位于弯折区100时，可以有效地避免应力集中，增强位于弯折区100的子像素在弯折过程中承受应力的能力，防止弯折区的电致发光层或者薄膜封装层脱落，进而确保显示装置的可靠性，提高产品的品质。
第一子像素11和第二子像素12间隔设置且排布成阵列；当第一子像素11和第二子像素12同一条弯折轴线2上，这样可以使得像素在同一方向上的颜色分布更均匀；第三子像素13位于两个相邻的第一子像素11之间，且位于两个相邻的第二子像素12之间，这样可以进一步地使得像素结构的颜色显示得更加均匀。
在本实施例中，位于弯折区100的子像素的图形可以是曲线四边形或椭圆形。优选地，第一子像素11和第二子像素12的图形可以设置为曲线四边形，第三子像素13可以设置成椭圆形，这样可以使得像素结构的颜色显示得更加均匀，同时，子像素在弯折过程中承受应力的能力，可以进一步地防止弯折区的电致发光层或者薄膜封装层脱落。
具体地，三个子像素分别用于显示红(R)、绿(G)、蓝(B)三种颜色，其中第一子像素11和第二子像素12排成一行且等距离间隔设置；第三子像素13位于两个相邻的第一子像素11之间，且位于两个相邻的第二子像素12之间，这样可以使像素单元1的颜色分布更加均匀，色彩效果较佳。当多条弯折轴线2设于子像素区中，同时经过依次经过至少一子像素时，每一弯折轴线2都互相平行。
为了进一步使像素区1的颜色分布均匀及色彩效果更佳，本实施例中设置第二子像素12的表面积小于第一子像素11的表面积，第三子像素13的表面积小于第二子像素12的表面积，此外，任意两个相邻的所述子像素显示的颜色不同。
第一子像素11是用于显示蓝色，第二子像素是用于显示红色，第三子像素13是用于显示绿色。像素单元1可以由第一子像素11和第二子像素12及第三子像素13构成。这里仅仅作为示例示出，可以根据实际需求选择其他的组合方式来构成像素单元1。通过将子像素设置为曲线四边形，可以使位于弯折区100的子像素在弯折过程中承受应力的整体能力，确保显示器件的可靠性，满足产品的可靠性需求。
在实施例中，子像素的图形设置在像素定义层和OLED，阳极层的图案视产品的需求而定，像素的面积及开口率视产品PPI和制程能力而定。像素定义层可采用常设计材料跟常规一样，可采用DL-1000或者DL-1001C等有机光阻材料，也可采用普通的光刻工艺进行制作。OLED可采用喷墨打印工艺或者蒸镀工艺，蒸镀所需FMM通过刻蚀，电铸，Laser或者其他新工艺制作。另外，不需要额外增加Mask，只需更改现有的PDL Mask和FMM Mask设计即可。
本实施例中的显示装置可以为LCD或OLED，显示装置除了像素结构及像素图案以外的其他结构与现有技术相同，这里不再一一赘述。
以上对本发明实施例所提供的一种折叠显示屏进行了详细介绍。应理解，本文所述的示例性实施方式应仅被认为是描述性的，用于帮助理解本发明的方法及其核心思想，而并不用于限制本发明。在每个示例性实施方式中对特征或方面的描述通常应被视作适用于其他示例性实施例中的类似特征或方面。尽管参考示例性实施例描述了本发明，但可建议所属领域的技术人员进行各种变化和更改。本发明意图涵盖所附权利要求书的范围内的这些变化和更改。

Claims (10)

  1. 一种折叠显示屏，包括弯折区与两个非弯折区，其中，
    所述折叠显示屏包括两个以上像素单元，
    每一所述像素单元包括三个子像素，
    位于所述弯折区的子像素图形为椭圆形或曲线四边形；
    位于所述非弯折区的子像素图形为菱形。
  2. 如权利要求1所述的折叠显示屏，其中，
    所述曲线四边形包括：
    两条彼此相对设置的曲线边；以及
    两条彼此平行的直线边，或者，
    另外两条彼此相对设置的曲线边。
  3. 如权利要求1所述的折叠显示屏，其中，
    所述折叠显示屏被弯折时，
    在弯折区形成至少一弯折轴线，依次经过至少一子像素。
  4. 如权利要求1所述的折叠显示屏，其中，
    当所述折叠显示屏被弯折时，两个非弯折区距离的一半为弯折半径。
  5. 如权利要求4所述的折叠显示屏，其中，
    当所述折叠显示屏被平置时，所述弯折区的宽度为所述弯折半径的2π倍。
  6. 如权利要求1所述的折叠显示屏，其中，所述像素单元排成阵列。
  7. 如权利要求1所述的折叠显示屏，其中，所述像素单元包括
    第一子像素与第二子像素间隔设置且排布成阵列；
    第三子像素，位于两个相邻的第一子像素之间，且位于两个相邻的第二子像素之间。
  8. 如权利要求6所述的折叠显示屏，其中，所述第一子像素与所述第二子像素排成一行且等距离间隔设置。
  9. 如权利要求6所述的折叠显示屏，其中，
    所述第二子像素的表面积小于所述第一子像素的表面积；
    所述第三子像素的表面积小于所述第二子像素的表面积。
  10. 如权利要求6所述的折叠显示屏，其中，
    所述第一子像素用于显示蓝色；
    所述第二子像素用于显示红色；
    所述第三子像素用于显示绿色。
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111681562A (zh) * 2020-06-10 2020-09-18 京东方科技集团股份有限公司 一种卷曲显示设备、电量管理方法及装置
CN111863889B (zh) 2020-07-07 2022-07-12 武汉华星光电半导体显示技术有限公司 像素排列结构、显示面板以及显示装置
KR20220147770A (ko) * 2021-04-27 2022-11-04 삼성디스플레이 주식회사 표시 장치 및 표시 장치의 제어방법
CN115404523A (zh) * 2022-09-02 2022-11-29 深圳市久维光电有限公司 一种钛合金折叠手机衬板的制作工艺
KR102922107B1 (ko) * 2023-01-18 2026-02-04 삼성디스플레이 주식회사 발광 표시 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104377205A (zh) * 2013-08-14 2015-02-25 昆山工研院新型平板显示技术中心有限公司 一种柔性显示基板及制备方法、柔性显示装置
US9287341B2 (en) * 2014-06-10 2016-03-15 Samsung Display Co., Ltd. Flexible display device including folding section
CN107275360A (zh) * 2016-04-01 2017-10-20 乐金显示有限公司 有机发光显示装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4667143B2 (ja) * 2005-07-07 2011-04-06 富士フイルム株式会社 固体撮像素子
KR20140120585A (ko) * 2013-04-03 2014-10-14 삼성디스플레이 주식회사 접이식 표시 장치
CN103366683B (zh) * 2013-07-12 2014-10-29 上海和辉光电有限公司 像素阵列、显示器以及将图像呈现于显示器上的方法
KR102039496B1 (ko) * 2013-08-19 2019-11-04 삼성디스플레이 주식회사 접이식 표시 장치
TWI553838B (zh) * 2014-07-04 2016-10-11 友達光電股份有限公司 畫素陣列基板與面板
KR102471237B1 (ko) * 2015-01-21 2022-11-28 삼성디스플레이 주식회사 폴더블 표시장치
KR20170004662A (ko) * 2015-07-03 2017-01-11 엘지디스플레이 주식회사 백플레인 기판 및 이를 이용한 플렉서블 디스플레이
KR102440114B1 (ko) * 2015-10-27 2022-09-05 삼성디스플레이 주식회사 표시 장치
CN106816449A (zh) * 2015-12-01 2017-06-09 昆山国显光电有限公司 Oled显示屏及其像素结构、oled显示屏的制作方法
CN105576002A (zh) * 2015-12-14 2016-05-11 Tcl集团股份有限公司 一种像素单元、像素结构及显示装置
CN106887208B (zh) * 2015-12-15 2020-05-05 上海和辉光电有限公司 显示设备及其像素阵列
CN107275361B (zh) * 2016-04-08 2020-10-02 乐金显示有限公司 有机发光显示装置
CN106205394B (zh) * 2016-09-05 2020-05-22 京东方科技集团股份有限公司 一种柔性显示面板、显示装置及制作方法
CN108334215B (zh) * 2017-01-20 2020-01-14 京东方科技集团股份有限公司 一种柔性触控面板及显示装置
CN108538882B (zh) * 2017-03-02 2020-05-19 京东方科技集团股份有限公司 显示面板及显示装置
US10534214B2 (en) * 2017-03-30 2020-01-14 HKC Corporation Limited Display panel and mask for manufacturing process of display panel
US10614735B2 (en) * 2017-11-09 2020-04-07 Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Flexible GOA display panel and method of manufacturing the same
CN108051943B (zh) * 2017-12-29 2020-11-10 上海天马有机发光显示技术有限公司 显示面板及其显示装置
CN108346377B (zh) * 2018-01-19 2020-09-04 昆山国显光电有限公司 一种柔性显示面板及其制作方法、显示装置
US10504415B2 (en) * 2018-01-19 2019-12-10 Wuhan China Star Optoelectornics Semiconductor Display Technology Co., Ltd. GOA circuit and driving method for foldable display panel, and foldable display panel
CN108470524A (zh) * 2018-03-20 2018-08-31 武汉华星光电技术有限公司 显示装置及其像素结构
CN108470738A (zh) * 2018-04-03 2018-08-31 友达光电股份有限公司 柔性显示器件及其制作方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104377205A (zh) * 2013-08-14 2015-02-25 昆山工研院新型平板显示技术中心有限公司 一种柔性显示基板及制备方法、柔性显示装置
US9287341B2 (en) * 2014-06-10 2016-03-15 Samsung Display Co., Ltd. Flexible display device including folding section
CN107275360A (zh) * 2016-04-01 2017-10-20 乐金显示有限公司 有机发光显示装置

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