WO2020107842A1 - 显示面板的像素排列结构及显示装置 - Google Patents

显示面板的像素排列结构及显示装置 Download PDF

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Publication number
WO2020107842A1
WO2020107842A1 PCT/CN2019/089084 CN2019089084W WO2020107842A1 WO 2020107842 A1 WO2020107842 A1 WO 2020107842A1 CN 2019089084 W CN2019089084 W CN 2019089084W WO 2020107842 A1 WO2020107842 A1 WO 2020107842A1
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Prior art keywords
pixel
sub
pixels
subpixel
arrangement structure
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English (en)
French (fr)
Inventor
肖志慧
黄俊杰
宋平
单为健
王亚玲
杨志业
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Yungu Guan Technology Co Ltd
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Yungu Guan Technology Co Ltd
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Publication of WO2020107842A1 publication Critical patent/WO2020107842A1/zh
Priority to US16/941,984 priority Critical patent/US11569303B2/en
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • 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

Definitions

  • the present application relates to the field of display technology, in particular to a pixel arrangement structure of a display panel and a display device.
  • Organic light emitting diode (Organic Light Emitting Diode, OLED for short), as a current-type light-emitting device, is more and more popular because of its many characteristics such as self-luminescence, fast response, wide viewing angle, and can be made on a flexible substrate. Used in high-performance display fields such as flexible display panels. OLED materials are generally achieved by thermal evaporation of organic materials to achieve RGB (red, green and blue) display, which needs to be masked (Mask) for shielding to achieve. This also makes the OLED pixel arrangement restricted by Mask, and the display aperture ratio will also be restricted.
  • RGB red, green and blue
  • Mask masked
  • the pixels of the three primary colors are designed into a rectangular structure to increase the aperture ratio of the pixels.
  • the combination of pixel units arranged by pixels of three primary colors has a rectangular structure, and the pixels of each color in the combination of pixel units also have a rectangular structure.
  • the present application provides a pixel arrangement structure and a display device for a display panel, which are used to solve the technical problem of low pixel aperture ratio of an organic light emitting diode display panel.
  • the present application provides a pixel arrangement structure of a display panel, including: a first subpixel, a second subpixel, and a third subpixel, wherein the first subpixel, the second subpixel, and the The third sub-pixel has a polygonal structure with different numbers of sides, and the adjacent sub-pixels, the second sub-pixel, and the third sub-pixel have the same spacing distance.
  • a second aspect of the present application provides a display device, including the pixel arrangement structure of the display panel according to any one of the first aspect.
  • a pixel arrangement structure and a display device of a display panel provided by the present application.
  • the pixel arrangement structure of the display panel includes: a first sub-pixel, a second sub-pixel, and a third sub-pixel, wherein the first sub-pixel, the second sub-pixel, the third The sub-pixels have a polygonal structure with different sides, and the adjacent first sub-pixel, second sub-pixel, and third sub-pixel are equally spaced apart.
  • the spacing distance between the adjacent first sub-pixel, second sub-pixel, and third sub-pixel can be set Equal, so that all pixels are arranged in a regular matrix, which can effectively improve the accuracy of the production of the sub-pixel light-emitting material pattern, and reduce the wrinkles generated by Mask when opening the net.
  • the first sub-pixel, the second sub-pixel and the third sub-pixel with different polygonal structures can increase the display area of the pixel and increase the aperture ratio of the pixel.
  • FIG. 1 of the present application is a structural schematic diagram of a pixel arrangement structure of an existing display panel
  • FIG. 2 is a schematic structural diagram of a pixel arrangement structure of a display panel according to Embodiment 1 of the present application;
  • FIG. 3 is a schematic diagram of the overall effect of the pixel arrangement structure of the display panel in FIG. 2;
  • FIG. 4 is a schematic structural diagram of a second sub-pixel
  • FIG. 5 is a schematic structural diagram of a pixel arrangement structure of a display panel according to Embodiment 2 of the present application.
  • FIG. 6 is a schematic structural diagram of a pixel arrangement structure of a display panel provided in Embodiment 3 of the present application.
  • FIG. 1 is a schematic structural diagram of a pixel arrangement structure of a conventional display panel. As shown in FIG. 1, it includes: a first sub-pixel 11, a second sub-pixel 12, and a third sub-pixel 13; Both the second sub-pixel 12 and the third sub-pixel 13 have a rectangular structure, and the pixel unit combination 10 composed of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 also has a rectangular structure.
  • the inner side of the rectangular structure of the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 is called a pixel side, and the first sub-pixel 11 and the second sub-pixel 12 3.
  • the outer side of the rectangular structure of the third sub-pixel 13 is called a reserved side (that is, the Mask edge in the configuration of the mask process).
  • the area between the pixel side and the reserved side constitutes the space area between the pixel openings, and these space areas will compress the display area of the pixel, thereby reducing the pixel aperture ratio.
  • the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 are all rectangular structures, there is a problem that the gap area between the pixel openings is large and the pixel opening ratio is low , Limit the improvement of the photoelectric performance of organic light-emitting diodes.
  • the present application aims to provide a pixel arrangement structure and a display device of a display panel, so as to improve the pixel aperture ratio of an organic light emitting diode display panel.
  • the pixel arrangement structure of this embodiment includes: a first sub-pixel 21, a second sub-pixel 22, and a third sub-pixel Pixel 23, wherein the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 are polygonal structures with different numbers of sides, and the adjacent first sub-pixel 21, the second sub-pixel 22, the third The distance between the sides of the three sub-pixels 23 is equal.
  • the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 are square, regular hexagon, and non-positive eight deformation structures, respectively.
  • the distances from the pixel side of the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 to the respective reserved sides are all equal.
  • the inner side of the polygonal structure of the first subpixel 21, the second subpixel 22, and the third subpixel 23 is called a pixel side
  • the outer side of the polygonal structure of the pixel 23 is called a reserved side.
  • the reserved edge refers to the outer boundary of the pixel when the Mask structure is blocked.
  • the distances from the pixel side of the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 to the respective reserved sides are equal to make the final pixel arrangement structure appear as a regular matrix arrangement , That is, there will be no misalignment between sub-pixels of the same type (see Figure 3, all first sub-pixels are arranged regularly, there is no misalignment between the first sub-pixels; between all second sub-pixels All are arranged regularly, and there is no misalignment between the second sub-pixels; all third sub-pixels are regularly arranged, and there is no misalignment between the third sub-pixels), which can effectively improve the luminescent material of the sub-pixels The precision and yield of the pattern, and reduce the risk of wrinkles when Mask is opened.
  • the first sub-pixel 21 may be a rectangular structure
  • the second sub-pixel 22 is a hexagonal structure
  • the third sub-pixel 23 is an octagonal structure.
  • the two adjacent first sub-pixels 21, second sub-pixels 22, and third sub-pixels 23 constitute a pixel unit combination 20, and the first sub-pixel 21, the second sub-pixel 22 in the pixel unit combination 20,
  • the third sub-pixel 23 has a different color.
  • the colors in the pixel unit combination 20 include: red, blue, and green.
  • the first sub-pixel in the pixel unit combination 20, can be set to R (red), the second sub-pixel to G (green) or B (blue), and the third sub-pixel to B (blue) or G (green).
  • the first sub-pixel in the pixel unit combination 20, can be set to G (green), the second sub-pixel to B (blue) or R (red), and the corresponding third sub-pixel The pixels are R (red) or B (blue).
  • multiple colors can be displayed by combining three primary colors (RGB) to achieve the effect of color display.
  • the length of the short side of the reserved side of the octagon of the third sub-pixel 23 is greater than or equal to 9 um.
  • FIG. 3 is a schematic diagram of the overall effect of the pixel arrangement structure of the display panel in FIG. 2. As shown in FIG. 3, the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 are arranged in a regular matrix. This arrangement can effectively improve the manufacturing accuracy of the sub-pixel luminescent material pattern, and reduce the wrinkles generated when Mask opens the net.
  • the third sub-pixels are located in odd rows, the first sub-pixels and the second sub-pixels are alternately arranged in even rows, and in the second direction, the first sub-pixels And the third sub-pixel are alternately arranged in the same row and the center point is on the same straight line, and the center point of the short side of the octagonal reserved side of the third sub-pixel is located on the center point line of the second sub-pixel; or,
  • the third sub-pixels are located in even rows, the first and second sub-pixels are alternately arranged in odd rows, and in the second direction, the first and third sub-pixels are alternately arranged in the same row
  • the center point of the row is on the same straight line, and the center point of the short side of the reserved side of the octagon of the third sub-pixel is located on the line connecting the center points of the second sub-pixel.
  • the first direction is the row direction.
  • the third sub-pixels 23 are located in odd rows, that is, the first, third, and fifth rows, and the first sub-pixels 21 and the second sub-pixels 22 are alternately arranged.
  • the second direction is the column direction.
  • the first sub-pixels 21 and the third sub-pixels 23 are alternately arranged in the same column and the center point is on the same straight line, The center point of the short side of the reserved side of the octagon of the third sub-pixel 23 is located on the center line of the second sub-pixel. Therefore, the manufacturing accuracy and yield of the sub-pixel light-emitting material pattern can be further effectively improved, and the risk of wrinkles generated when the Mask is opened is further reduced.
  • first direction and the second direction are different, that is, the first direction and the second direction can only intersect in the same plane, rather than being limited to the two; the first direction and the second direction are not limited to The first direction shown in FIG. 3 is the row direction, the second direction is the column direction, in other embodiments, the first direction may be the column direction, and the second direction is the row direction; the row described herein may be The columns or rows consistent with the first direction and/or the second direction; FIG. 3 only schematically lists six rows and eight columns of sub-pixels. The specific number of rows and columns can be set according to actual needs, and is not limited in this application.
  • the first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 are all arranged regularly. Therefore, a regular-shaped mask can be designed during the production process of the sub-pixel luminescent material pattern. Therefore, the precision of the production of the sub-pixel light-emitting material pattern is improved, and the wrinkles generated when the Mask is opened are reduced.
  • the value range of the angle ⁇ of the second sub-pixel 22 is 90 degrees to 180 degrees, that is, two adjacent third sub-pixels
  • the angle between the hypotenuses ranges from 90 degrees to 180 degrees.
  • This embodiment does not limit the sizes of the first sub-pixel, the second sub-pixel, and the third sub-pixel.
  • the specific size is determined by the resolution size that can be achieved by the process.
  • the aperture ratio of different colors can be adjusted.
  • the first sub-pixel, the second sub-pixel, and the third sub-pixel of the display panel are set to different polygonal structures, such as square structure, regular hexagonal structure, and non-regular octagonal structure, respectively. Since the first subpixel, the second subpixel, and the third subpixel have different polygonal structures, when arranging, the adjacent first subpixel, second subpixel, and third subpixel The distance between them is equal, so that all pixels are arranged in a regular matrix, which can effectively improve the accuracy of the production of the sub-pixel light-emitting material pattern and reduce the wrinkles generated when the Mask is opened. In addition, the first sub-pixel, the second sub-pixel and the third sub-pixel with different polygonal structures can effectively increase the display area of the pixel and increase the aperture ratio of the pixel.
  • FIG. 5 is a schematic structural diagram of a pixel arrangement structure of a display panel according to Embodiment 2 of the present application; as shown in FIG. 5, the pixel arrangement structure of this embodiment includes: a rectangular structure of the first sub-pixel 21, and a hexagonal structure of the first Two sub-pixels 22 and a third sub-pixel 23 of octagonal structure, wherein the distance between the sides of the adjacent first sub-pixel 21, the second sub-pixel 22, and the third sub-pixel 23 is equal, and the two Two adjacent first sub-pixels 21, second sub-pixels 22, and third sub-pixels 23 constitute a pixel unit combination 20.
  • the center point 24 of the short side of the reserved side of the octagonal shape of the third sub-pixel 23 in the third sub-pixel 23 in the pixel unit combination 20 is controlled to be aligned with the vertical central axis 25 of the second sub-pixel and the third
  • the overlapping positions of the horizontal central axis 26 of the sub-pixels can make the arrangement of the pixels more regular, and can balance the display area ratio of the sub-pixels of three different colors, while improving the aperture ratio of the pixels, and ensuring the display effect of the display panel .
  • the first sub-pixel, the second sub-pixel, and the third sub-pixel of the display panel are set to different polygonal structures, such as square structure, regular hexagonal structure, and non-regular octagonal structure, respectively. Since the first subpixel, the second subpixel, and the third subpixel have different polygonal structures, when arranging, the adjacent first subpixel, second subpixel, and third subpixel The distance between them is equal, so that all pixels are arranged in a regular matrix, which can effectively improve the precision of the production of the sub-pixel luminescent material pattern, and reduce the wrinkles generated by Mask when the net is opened. In addition, the first sub-pixel, the second sub-pixel and the third sub-pixel with different polygonal structures can effectively increase the display area of the pixel and increase the aperture ratio of the pixel.
  • This embodiment does not limit the sizes of the first sub-pixel, the second sub-pixel, and the third sub-pixel.
  • the specific size is determined by the resolution size that can be achieved by the process.
  • the aperture ratio of different colors can be adjusted.
  • FIG. 6 is a schematic structural diagram of a pixel arrangement structure of a display panel provided in Embodiment 3 of the present application; as shown in FIG. 6, the pixel arrangement structure of this embodiment includes: a first sub-pixel 21 of a rectangular structure and a third Two sub-pixels 22, a third sub-pixel 23 with an octagonal structure; the distances between the sides of the adjacent first sub-pixel 21, second sub-pixel 22, and third sub-pixel 23 are equal; The adjacent first subpixel 21, second subpixel 22, and third subpixel 23 constitute a pixel unit combination 20.
  • the distance between the center point 27 of the second sub-pixel and the center point 29 of the third sub-pixel in the pixel unit combination 20, and the center point 24 of the short side of the reserved side of the octagon of the third sub-pixel and the first The distance between the center points 28 of one sub-pixel is equal.
  • the distance between the center point 27 of the second subpixel and the center point 29 of the third subpixel in the pixel unit combination 20 is shorter.
  • the distance between the center point 24 of the edge and the center point 28 of the first sub-pixel is equal, which can make the arrangement of pixels more regular, and can balance the display area ratio of the sub-pixels of three different colors. At the same time, the display effect of the display panel is guaranteed.
  • the opening area of the sub-pixels in the same area is increased.
  • the third sub-pixel is vapor-deposited by a second vapor deposition scheme (that is, the number of Mask openings is half of the number of substrate sub-pixels, and the evaporation of the substrate sub-pixels is carried out twice by displacement during vapor deposition All the corresponding organic materials are evaporated).
  • the strength of FMM Feine Metal Mask
  • the production difficulty of sub-pixel luminescent material patterns and the difficulty of FMM network opening can be reduced. Since the pixels are arranged in a regular matrix, there is no misalignment, which can improve the accuracy and yield of the net.
  • the first sub-pixel, the second sub-pixel, and the third sub-pixel of the display panel are set to different polygonal structures, such as square structure, regular hexagonal structure, and non-regular octagonal structure, respectively. Since the first sub-pixel, the second sub-pixel, and the third sub-pixel have a polygonal structure with different sides, when arranging, the adjacent first sub-pixel, second sub-pixel, and third sub-pixel can be set The distance between the sides is equal, so that all pixels are arranged in a regular matrix, which can effectively improve the accuracy of the production of the sub-pixel light-emitting material pattern and reduce the wrinkles generated when the Mask is opened. In addition, the first sub-pixel, the second sub-pixel and the third sub-pixel with different polygonal structures can effectively increase the display area of the pixel and increase the aperture ratio of the pixel.
  • This embodiment does not limit the sizes of the first sub-pixel, the second sub-pixel, and the third sub-pixel.
  • the specific size is determined by the resolution size that can be achieved by the process.
  • the aperture ratio of different colors can be adjusted.
  • the structure in the present application can increase the aperture ratio of the pixel.
  • V-shaped structure in Table 1 is the structure in Figure 1.
  • the structure of the present application can significantly increase the aperture ratio of the first subpixel, the second subpixel, and the third subpixel, and the total pixel aperture ratio.
  • the embodiments of the present application further provide a display device that uses the pixel arrangement structure of the display panel described above.
  • the pixel arrangement structure of the display panel of the display device may include: a first subpixel, a second subpixel, and a third subpixel, where the first subpixel, the second subpixel, and the third subpixel are the number of sides Different polygonal structures, and the spacing distance between the adjacent first sub-pixel, second sub-pixel and third sub-pixel is equal.
  • the distances from the pixel side of the first sub-pixel, the second sub-pixel, and the third sub-pixel to the respective reserved sides are equal; the reserved side refers to the outer boundary of the pixel when the Mask structure is blocked.
  • the first sub-pixel has a rectangular structure
  • the second sub-pixel has a hexagonal structure
  • the third sub-pixel has an octagonal structure.
  • the short side length of the octagon of the third sub-pixel is smaller than the side length of the first sub-pixel.
  • two adjacent first subpixels, second subpixels, and third subpixels constitute a pixel unit combination, and the first subpixel, second subpixel, and third subpixel in the pixel unit combination The colors are different.
  • the colors in the pixel unit combination include: red, blue, and green. There is no gap between two adjacent reserved sides of the first sub-pixel, the second sub-pixel, and the third sub-pixel combined by the pixel unit.
  • the center point of the short side of the reserved side of the octagon of the third subpixel in the pixel unit combination coincides with the position of the intersection of the vertical central axis of the second subpixel and the horizontal central axis of the third subpixel .
  • the distance between the center point of the second sub-pixel and the center point of the third sub-pixel in the pixel unit combination, and the center point of the short side of the reserved side of the octagon of the third sub-pixel and the first is equal.
  • the first sub-pixel, the second sub-pixel, and the third sub-pixel in the pixel arrangement structure of the display panel have a polygonal structure with different numbers of sides. Therefore, when arranging, adjacent first The sub-pixel, the second sub-pixel, and the third sub-pixel have the same spacing distance, so that all pixels are arranged in a regular matrix, which can effectively improve the accuracy of the production of the sub-pixel luminescent material pattern and reduce the occurrence of Mask when the net is opened Folds.
  • the first sub-pixel, the second sub-pixel and the third sub-pixel with different polygonal structures can increase the display area of the pixel and increase the aperture ratio of the pixel.
  • the terms “installation”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, Or integrally formed, it can be mechanical connection, electrical connection or communication with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction between two components.

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Abstract

本申请提供一种显示面板的像素排列结构及显示装置，用于解决有机发光二极管显示面板的像素开口率低下的技术问题。其中，显示面板的像素排列结构包括：第一子像素、第二子像素、第三子像素，第一子像素、第二子像素和第三子像素为边数不同的多边形结构，且相邻的第一子像素、第二子像素、第三子像素两两之间的间隔距离相等。

Description

显示面板的像素排列结构及显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板的像素排列结构及显示装置。
背景技术
有机发光二极管(Organic Light Emitting Diode，简称OLED)作为一种电流型发光器件，因其所具有自发光、快速响应、宽视角和可制作在柔性基板上等多种特点而越来越多地被应用于高性能显示领域如柔性显示面板中。OLED材料一般是通过对有机材料热蒸镀实现RGB(红绿蓝)显示，这就需要掩膜版(Mask)进行遮挡来实现。这也使得OLED的像素排列就会受到Mask的限制，显示开口率也会受限。
现有技术中，通过将三原色的像素设计成矩形结构来提升像素的开口率。其中，由三原色像素排列成的像素单元组合呈矩形结构，在像素单元组合中每种颜色的像素也为矩形结构。
但是，采用三个矩形结构的像素会增加排列后像素之间的间隔区域的面积，从而压缩了像素显示的面积，使得像素开口率低下。
发明内容
针对上述缺陷，本申请提供一种显示面板的像素排列结构及显示装置，用于解决有机发光二极管显示面板的像素开口率低下的技术问题。
第一方面，本申请提供一种显示面板的像素排列结构，包括：第一子像素、第二子像素、第三子像素，其中所述第一子像素、所述第二子像素、所述第三子像素为边数不同的多边形结构，且相邻的所述第一子像素、所述第二子像素、所述第三子像素两两之间的间隔距离相等。
本申请第二方面提供一种显示装置，包括：如第一方面中任一项所述的显示面板的像素排列结构。
本申请提供的显示面板的像素排列结构及显示装置，显示面板的像素排列结构包括： 第一子像素、第二子像素、第三子像素，其中第一子像素、第二子像素、第三子像素为边数不同的多边形结构，且相邻的第一子像素、第二子像素、第三子像素两两之间的间隔距离相等。由于第一子像素、第二子像素、第三子像素为不同的多边形结构，因此在排列时，可以设置相邻的第一子像素、第二子像素、第三子像素之间的间隔距离相等，以使得所有像素均为规则的矩阵排列，从而可以有效提升子像素发光材料图案的制作精度，减少张网时Mask产生的褶皱。另外，呈现不同多边形结构的第一子像素、第二子像素、第三子像素可以增加像素的显示面积，提升像素的开口率。
附图说明
本申请图1为现有的显示面板的像素排列结构的结构示意图；
图2为本申请实施例一提供的显示面板的像素排列结构的结构示意图；
图3为图2中显示面板的像素排列结构的整体效果示意图；
图4为第二子像素的结构示意图；
图5为本申请实施例二提供的显示面板的像素排列结构的结构示意图；
图6为本申请实施例三提供的显示面板的像素排列结构的结构示意图。
图中：
20-像素单元组合；
21-第一子像素；
22-第二子像素；
23-第三子像素；
24-第三子像素的八边形的预留边的短边的中心点；
25-第二子像素的水平中轴线；
26-第二子像素的竖直中轴线；
27-第二子像素的中心点；
28-第一子像素的中心点；
29-第三子像素的中心点。
具体实施方式
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。
在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
图1为现有的显示面板的像素排列结构的结构示意图，如图1所示，包括：第一子像素11、第二子像素12、第三子像素13；其中，第一子像素11、第二子像素12、第三子像素13均为矩形结构，由第一子像素11、第二子像素12、第三子像素13构成的像素单元组合10也呈矩形结构。
参见图1，为了方便描述，将第一子像素11、第二子像素12、第三子像素13的矩形结构的内侧边称为像素边，将第一子像素11、第二子像素12、第三子像素13的矩形结构的外侧边称为预留边(即在掩膜工艺构成中的Mask边缘)。像素边与预留边之间的区域构成了像素开口之间的间隔区域，这些间隔区域会压缩像素的显示面积，从而降低了像素的开口率。
图1中的像素排列结构中，由于第一子像素11、第二子像素12、第三子像素13均为矩形结构，因此存在像素开口之间的间隔区域大，像素开口率较低的问题，限制有机发光二极管的光电性能的提升。
针对上述问题，本申请旨在提供一种显示面板的像素排列结构及显示装置，以提升有机发光二极管显示面板的像素开口率。
图2为本申请实施例一提供的显示面板的像素排列结构的结构示意图；如图2所示，本实施例的像素排列结构包括：第一子像素21、第二子像素22、第三子像素23，其中第一子像素21、所述第二子像素22、第三子像素23为边数不同的多边形结构，且相邻的第一子像素21、所述第二子像素22、第三子像素23的边与边之间距离相等。
在一种实施方案中，所述第一子像素21、所述第二子像素22、第三子像素23分别为正方形、正六边形、非正八变形结构。
在一种可选的实施方式中，可以设置第一子像素21、第二子像素22、第三子像素23的像素边到各自预留边的距离均相等。为了方便描述，将第一子像素21、第二子像素22、第三子像素23的多边形结构的内侧边称为像素边，将第一子像素21、第二子像素22、第三子像素23的多边形结构的外侧边称为预留边。所述预留边是指Mask结构遮挡时的像素外边界。
在本实施例中，设置第一子像素21、第二子像素22、第三子像素23的像素边到各自预留边的距离均相等是为了使得最终的像素排列结构呈现为规则的矩阵排列，即相同类型 的子像素之间不会存在错位排列(参见图3，所有第一子像素之间均呈规则排布，第一子像素之间无错位偏移；所有第二子像素之间均呈规则排布，第二子像素之间无错位偏移；所有第三子像素之间均呈规则排布，第三子像素之间无错位偏移)，从而可以有效提高子像素发光材料图案的制作精度和良率，并降低Mask张网时产生褶皱风险。
参见图2，在一种可选的实施方式中，可以设置第一子像素21为矩形结构，第二子像素22为六边形结构，第三子像素23为八边形结构。其中，两两相邻的第一子像素21、第二子像素22、第三子像素23构成一个像素单元组合20，且像素单元组合20中的第一子像素21、第二子像素22、第三子像素23的颜色不同。
在一种可选的实施方式中，像素单元组合20中的颜色包括：红色、蓝色、绿色。
在一种可选的实施方式中，在像素单元组合20中，可以设置第一子像素为R(红色)，第二子像素为G(绿色)或B(蓝色)，第三子像素为B(蓝色)或G(绿色)。
在一种可选的实施方式中，在像素单元组合20中，可以设置第一子像素为G(绿色)，第二子像素为B(蓝色)或R(红色)，对应的第三子像素为R(红色)或B(蓝色)。
本实施例中，可以通过三原色(RGB)组合显示出多种颜色，从而达到彩色显示的效果。
在一种可选的实施方式中，第三子像素23的八边形的预留边的短边长度大于或者等于9um。通过限定第三子像素23的八边形的预留边的短边长度，可以控制不同颜色像素的显示面积比例。
参见图2，像素单元组合20的第一子像素21、第二子像素22、第三子像素23的两两相邻的预留边之间无缝隙。这是为了尽可能地缩小像素的间隔，使得相同面积上可以设置更多的像素单元组合。
在一种可选的实施方式中，像素单元组合20的第一子像素21、第二子像素22、第三子像素23的两两相邻的预留边的长度相等。这是为了使得最终的像素排列结构呈现为规则的矩阵排列。图3为图2中显示面板的像素排列结构的整体效果示意图。如图3所示，第一子像素21、第二子像素22、第三子像素23呈现规则的矩阵排列。这种排列方式可以有效提升子像素发光材料图案的制作精度，减少Mask张网时产生的褶皱。
在一种可选的实施方式中，在第一方向上，第三子像素位于奇数排，第一子像素和第二子像素交替排布于偶数排，在第二方向上，第一子像素和第三子像素交替排布于同一排且中心点位于同一条直线上，第三子像素的八边形的预留边的短边的中心点位于第二子像素的中心点连线上；或者，
在第一方向上，第三子像素位于偶数排，第一子像素和第二子像素交替排布于奇数排，在第二方向上，第一子像素和第三子像素交替排布于同一排且中心点位于同一条直线上，第三子像素的八边形的预留边的短边的中心点位于第二子像素的中心点连线上。
具体的，如图3所示，第一方向为行方向，在行方向上，第三子像素23位于奇数行即第一、三、五行，第一子像素21和第二子像素22交替排布于偶数行即第二、四、六行；第二方向为列方向，在列方向上，第一子像素21和第三子像素23交替排布于同一列且中心点位于同一条直线上，第三子像素23的八边形的预留边的短边的中心点位于第二子像素的中心点连线上。从而可以进一步有效提高子像素发光材料图案的制作精度和良率，并进一步降低Mask张网时产生褶皱风险。
需要说明的是：第一方向与第二方向的方向不同，即在同一平面内第一方向与第二方向相交即可，而非仅限于两者垂直；第一方向与第二方向并非仅限于如图3所示的第一方向为行方向，第二方向为列方向，在其他实施方式中，可以是第一方向为列方向，第二方向为行方向；本文中所述的排可以是与第一方向和/或第二方向一致的列或行；图3仅示意性列出六行八列子像素，具体行列数目可根据实际需求设定，本申请不做限制。
从图3中可以看出，第一子像素21、第二子像素22、第三子像素23均为规则排列，因此在子像素发光材料图案的制作过程中，可以设计规则形状的掩膜，从而提升子像素发光材料图案的制作精度，减少Mask张网时产生的褶皱。
图4为第二子像素的结构示意图，如图4所示，第二子像素22的夹角θ的角度的取值范围为90度～180度，也即相邻的两个第三子像素之间斜边的夹角范围为90度～180度。
本实施例不限定第一子像素、第二子像素、第三子像素的大小，其具体尺寸由工艺可实现的分辨率大小决定。通过调整第一子像素、第二子像素、第三子像素各个边的长度，可以调节不同颜色的开口率。
本实施例，将显示面板的第一子像素、第二子像素、第三子像素设置为不同的多边形结构，例如分别设置为正方形结构、正六边形结构、非正八边形结构。由于第一子像素、第二子像素、第三子像素为不同的多边形结构，因此在排列时，可以设置相邻的第一子像素、第二子像素、第三子像素的边与边之间距离相等，以使得所有像素均为规则的矩阵排列，从而可以有效提升子像素发光材料图案的制作精度，减少Mask张网时产生的褶皱。另外，呈现不同多边形结构的第一子像素、第二子像素、第三子像素可以有效增加像素的显示面积，提升像素的开口率。
图5为本申请实施例二提供的显示面板的像素排列结构的结构示意图；如图5所示， 本实施例的像素排列结构包括：矩形结构的第一子像素21、六边形结构的第二子像素22、八边形结构的第三子像素23，其中相邻的第一子像素21、所述第二子像素22、第三子像素23的边与边之间距离相等，并且两两相邻的第一子像素21、第二子像素22、第三子像素23构成一个像素单元组合20。像素单元组合20中的第三子像素23的八边形的预留边的短边的中心点24与第二子像素的竖直中轴线26、第三子像素的水平中轴线25的交点位置重合。
本实施例中，通过控制像素单元组合20中的第三子像素23的八边形的预留边的短边的中心点24，使其与第二子像素的竖直中轴线25和第三子像素的水平中轴线26的交点位置重合，可以使得像素的排列更加规律，并能够均衡三种不同颜色的子像素的显示面积比例，在提升像素的开口率的同时，保证显示面板的显示效果。
本实施例，将显示面板的第一子像素、第二子像素、第三子像素设置为不同的多边形结构，例如分别设置为正方形结构、正六边形结构、非正八边形结构。由于第一子像素、第二子像素、第三子像素为不同的多边形结构，因此在排列时，可以设置相邻的第一子像素、第二子像素、第三子像素的边与边之间距离相等，以使得所有像素均为规则的矩阵排列，从而可以有效提升子像素发光材料图案的制作精度，减少张网时Mask产生的褶皱。另外，呈现不同多边形结构的第一子像素、第二子像素、第三子像素可以有效增加像素的显示面积，提升像素的开口率。
本实施例不限定第一子像素、第二子像素、第三子像素的大小，其具体尺寸由工艺可实现的分辨率大小决定。通过调整第一子像素、第二子像素、第三子像素各个边的长度，可以调节不同颜色的开口率。
图6为本申请实施例三提供的显示面板的像素排列结构的结构示意图；如图6所示，本实施例的像素排列结构包括：矩形结构的第一子像素21、六边形结构的第二子像素22、八边形结构的第三子像素23；相邻的第一子像素21、第二子像素22、第三子像素23的边与边之间距离相等；其中，两两相邻的第一子像素21、第二子像素22、第三子像素23构成一个像素单元组合20。像素单元组合20中的第二子像素的中心点27和第三子像素的中心点29之间的距离，与第三子像素的八边形的预留边的短边的中心点24和第一子像素的中心点28之间的距离相等。
本实施例中，通过控制像素单元组合20中的第二子像素的中心点27和第三子像素的中心点29之间的距离，与第三子像素的八边形的预留边的短边的中心点24和第一子像素的中心点28之间的距离相等，可以使得像素的排列更加规律，并能够均衡三种不同颜色 的子像素的显示面积比例，在提升像素的开口率的同时，保证显示面板的显示效果。
本实施例中，通过矩形、六边形、八边形的合理搭配，从而提高了同样面积上子像素的开口面积。
在一种可选的制作方式中，第三子像素通过二次蒸镀方案实现蒸镀(即Mask开口数量是基板子像素数量的一半，蒸镀时通过位移进行两次蒸镀实现基板子像素全部蒸镀上相应的有机材料)。从而可以大大提高FMM(Fine Metal Mask，精细金属掩膜版)的强度，降低了子像素发光材料图案生产难度和FMM张网难度。由于像素均为规则矩阵排列，没有错位排列，从而可提高张网精度和良率。
本实施例，将显示面板的第一子像素、第二子像素、第三子像素设置为不同的多边形结构，例如分别设置为正方形结构、正六边形结构、非正八边形结构。由于第一子像素、第二子像素、第三子像素为边数不同的多边形结构，因此在排列时，可以设置相邻的第一子像素、第二子像素、第三子像素的边与边之间距离相等，以使得所有像素均为规则的矩阵排列，从而可以有效提升子像素发光材料图案的制作精度，减少Mask张网时产生的褶皱。另外，呈现不同多边形结构的第一子像素、第二子像素、第三子像素可以有效增加像素的显示面积，提升像素的开口率。
本实施例不限定第一子像素、第二子像素、第三子像素的大小，其具体尺寸由工艺可实现的分辨率大小决定。通过调整第一子像素、第二子像素、第三子像素各个边的长度，可以调节不同颜色的开口率。
具体地，可以通过实验验证本申请中的结构可以提高像素的开口率。
首先，要实现显示，需要RGB三原色组合，而OLED材料是通过对有机材料热蒸镀实现RGB显示，这就需要掩膜版(Mask)遮挡实现，因此OLED的像素排列就会受到Mask限制，显示开口率也会受限，而开口率提升可有效提高OLED器件的光电性能和寿命等特性。因此通过合理的像素排列设计提高RGB像素的开口率在OLED显示中尤为重要。本申请正是通过对V型(如图1)像素合理设计RGB三原色形状和布局(如图2)，有效提高了像素开口率。
表1
Figure PCTCN2019089084-appb-000001
Figure PCTCN2019089084-appb-000002
注：表1的V型结构为图1中的结构。
通过表1可知，采用本申请中的结构可以明显增加第一子像素、第二子像素、第三子像素的开口率，以及总的像素开口率。
此外，本申请实施例还提供一种显示装置，应用上述的显示面板的像素排列结构。
本实施例中，显示装置的显示面板的像素排列结构可以包括：第一子像素、第二子像素、第三子像素，其中第一子像素、第二子像素、第三子像素为边数不同的多边形结构，且相邻的第一子像素、第二子像素、第三子像素两两之间的间隔距离相等。
可选地，第一子像素、第二子像素、第三子像素的像素边到各自预留边的距离均相等；预留边是指Mask结构遮挡时的像素外边界。
可选地，第一子像素为矩形结构，第二子像素为六边形结构，第三子像素为八边形结构。第三子像素的八边形的短边长度小于第一子像素的边长。
可选地，两两相邻的第一子像素、第二子像素、第三子像素构成一个像素单元组合，且像素单元组合中的第一子像素、第二子像素、第三子像素的颜色不同。
可选地，像素单元组合中的颜色包括：红色、蓝色、绿色。像素单元组合的第一子像素、第二子像素、第三子像素的两两相邻的预留边之间无缝隙。
可选地，像素单元组合中的第三子像素的八边形的预留边的短边的中心点与第二子像素的竖直中轴线和第三子像素的水平中轴线的交点位置重合。
可选地，像素单元组合中的第二子像素的中心点和第三子像素的中心点之间的距离，与第三子像素的八边形的预留边的短边的中心点和第一子像素的中心点之间的距离相等。
本申请提供的显示装置，其显示面板的像素排列结构中的第一子像素、第二子像素、 第三子像素为边数不同的多边形结构，因此在排列时，可以设置相邻的第一子像素、第二子像素、第三子像素之间的间隔距离相等，以使得所有像素均为规则的矩阵排列，从而可以有效提升子像素发光材料图案的制作精度，减少Mask张网时产生的褶皱。另外，呈现不同多边形结构的第一子像素、第二子像素、第三子像素可以增加像素的显示面积，提升像素的开口率。
在本申请中，除非另有明确的规定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸的连接，或一体成型，可以是机械连接，也可以是电连接或者彼此可通讯；可以是直接相连，也可以通过中间媒体间接连接，可以是两个元件内部的连通或者两个元件的互相作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。

Claims (16)

  1. 一种显示面板的像素排列结构，包括：第一子像素、第二子像素、第三子像素，其中所述第一子像素、所述第二子像素、所述第三子像素为边数不同的多边形结构，且相邻的所述第一子像素、所述第二子像素、所述第三子像素两两之间的间隔距离相等。
  2. 根据权利要求1所述的像素排列结构，其中，所述第一子像素、所述第二子像素、所述第三子像素的像素边到各自预留边的距离均相等。
  3. 根据权利要求1所述的像素排列结构，其中，所述第一子像素为矩形结构，所述第二子像素为六边形结构，所述第三子像素为八边形结构。
  4. 根据权利要求1所述的像素排列结构，其中，所述第一子像素为正方形结构，所述第二子像素为正六边形结构，所述第三子像素为非正八边形结构。
  5. 根据权利要求3或4所述的像素排列结构，其中，所述第三子像素的八边形的短边长度小于第一子像素的边长。
  6. 根据权利要求3所述的像素排列结构，其中，两两相邻的第一子像素、第二子像素、第三子像素构成一个像素单元组合，且所述像素单元组合中的第一子像素、第二子像素、第三子像素的颜色不同。
  7. 根据权利要求6所述的像素排列结构，其中，所述像素单元组合的第一子像素、第二子像素、第三子像素的两两相邻的预留边之间无缝隙。
  8. 根据权利要求7所述的像素排布结构，其中，所述像素单元组合的第一子像素、第二子像素、第三子像素的两两相邻的预留边的长度相等。
  9. 根据权利要求6所述的像素排列结构，其中，所述像素单元组合中的第三子像素的八边形的预留边的短边的中心点与第二子像素的竖直中轴线和第三子像素的水平中轴线的交点位置重合。
  10. 根据权利要求6所述的像素排列结构，其中，所述像素单元组合中的第二子像素的中心点和第三子像素的中心点之间的距离，与第三子像素的八边形的预留边的短边的中心点和第一子像素的中心点之间的距离相等。
  11. 根据权利要求6所述的像素排列结构，其中，所述像素单元组合中的第三子像素的八边形的预留边的短边的中心点位于所述第二子像素的中心点连线上。
  12. 根据权利要求1所述的像素排列结构，其中，所述第一子像素为绿色子像素，所述第二子像素为蓝色子像素，所述第三子像素为红色子像素。
  13. 根据权利要求1所述的像素排列结构，其中，所述第一子像素为绿色子像素，所述第二子像素为红色子像素，所述第三子像素为蓝色子像素。
  14. 根据权利要求3所述的像素排列结构，其中，在第一方向上，第三子像素位于奇数排，第一子像素和第二子像素交替排布于偶数排，在第二方向上，第一子像素和第三子像素交替排布于同一排且中心点位于同一条直线上，第三子像素的八边形的预留边的短边的中心点位于第二子像素的中心点连线上。
  15. 根据权利要求3所述的像素排列结构，其中，在第一方向上，第三子像素位于偶数排，第一子像素和第二子像素交替排布于奇数排，在第二方向上，第一子像素和第三子像素交替排布于同一排且中心点位于同一条直线上，第三子像素的八边形的预留边的短边的中心点位于第二子像素的中心点连线上。
  16. 一种显示装置，包括：显示面板，所述显示面板采用如权利要求1-15中任一项所述的像素排列结构。
PCT/CN2019/089084 2018-11-29 2019-05-29 显示面板的像素排列结构及显示装置 Ceased WO2020107842A1 (zh)

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