WO2018205662A1 - 像素结构、其制作方法、显示面板及显示装置 - Google Patents

像素结构、其制作方法、显示面板及显示装置 Download PDF

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Publication number
WO2018205662A1
WO2018205662A1 PCT/CN2018/071551 CN2018071551W WO2018205662A1 WO 2018205662 A1 WO2018205662 A1 WO 2018205662A1 CN 2018071551 W CN2018071551 W CN 2018071551W WO 2018205662 A1 WO2018205662 A1 WO 2018205662A1
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Prior art keywords
sub
pixel
pixels
color
pixel structure
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PCT/CN2018/071551
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English (en)
French (fr)
Inventor
胡月
王欣欣
胡春静
宋丽芳
叶志杰
刘凌云
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Priority to US16/092,074 priority Critical patent/US10937352B2/en
Publication of WO2018205662A1 publication Critical patent/WO2018205662A1/zh
Anticipated expiration legal-status Critical
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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
    • H10K59/351—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels comprising more than three subpixels, e.g. red-green-blue-white [RGBW]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • 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
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

Definitions

  • the present application relates to a pixel structure, a method of fabricating the same, a display panel, and a display device.
  • sub-pixels can be divided into red R sub-pixels, green G sub-pixels, and blue B sub-pixels according to the illuminating color, and three adjacent R sub-pixels
  • the pixel, the G sub-pixel, and the B sub-pixel may constitute one pixel unit.
  • the principle of color display of the OLED display panel is as follows: the sub-pixel emits light through the organic electroluminescent layer included therein, and the three sub-pixels R, G, and B emit light of different brightness, and since each pixel unit is very small, visually The light emitted by the three sub-pixels R, G, and B is mixed to form a color to be displayed for each pixel unit.
  • a pixel structure provided by some embodiments of the present disclosure includes a plurality of sub-pixels arranged in a matrix and having a triangular shape, and the pixel structure includes a plurality of pixel units; wherein the plurality of sub-pixels have four different Color, each pixel unit is a triangular structure composed of four different color sub-pixels; each of the pixel units of the first color is located at a central position of the pixel unit, and the other three color sub-pixels The pixels are respectively located at three corners of the pixel unit and share a triangular edge with the sub-pixels of the first color respectively; the colors of the two sub-pixels sharing the same triangular edge in the pixel structure are different; One row and each column of sub-pixels are alternately arranged by erect triangular sub-pixels and inverted triangular sub-pixels; each set of six adjacent columns of sub-pixels, each of the set of sub-pixels includes four Sub-pixels of different colors, and each of the groups is arranged
  • the two rows of sub-pixels are arranged in the same manner for each row.
  • each of the first color sub-pixels is used by only one pixel unit, and the other three color sub-pixels are all shared by at least three different pixel units.
  • two adjacent pixel units share one sub-pixel.
  • the sub-pixels in each pixel unit are only used by the pixel unit.
  • the sub-pixels of the first color are sub-pixels that are overlapped by a single layer of color resist corresponding to a plurality of adjacent sub-pixel regions.
  • the first color comprises white, purple, yellow, or cyan.
  • the other three colors are red, green, and blue, respectively.
  • the sub-pixels and the pixel units are all in the shape of an equilateral triangle.
  • Some embodiments of the present disclosure also provide a display panel comprising: the above pixel structure as provided by some embodiments of the present disclosure.
  • Some embodiments of the present disclosure further provide a display method of the above pixel structure according to some embodiments of the present disclosure, the method comprising: controlling a sub-pixel of a first color in each pixel unit to perform image gray scale display; A sub-pixel of a first color that is not included in any pixel unit is controlled for brightness adjustment display.
  • two adjacent pixel units share a sub-pixel of the same color for image gray scale display.
  • Some embodiments of the present disclosure further provide a method for fabricating the above pixel structure according to some embodiments of the present disclosure, the method comprising: forming a color resist pattern of four different color sub-pixels in a pixel structure by using three masks, Make the colors of any two adjacent sub-pixels different.
  • forming a color resist pattern of four different color sub-pixels in the pixel structure by using three masks includes: forming a pattern of all red color resists in the pixel structure by using the first mask; and Forming a pattern of all the green color resists in the pixel structure by using the second mask; and forming a pattern of all the blue color resists in the pixel structure by using the third mask to obtain four different color sub-pixels in the pixel structure Color resist pattern.
  • FIG. 1 is a partial structural diagram of a pixel structure according to some embodiments of the present disclosure.
  • FIG. 2 is a schematic structural diagram of a first row of sub-pixels in FIG. 1 according to some embodiments of the present disclosure
  • FIG. 3 is a schematic structural diagram of a first column of sub-pixels in FIG. 1 according to some embodiments of the present disclosure
  • FIG. 4 is a schematic structural diagram of a group of sub-pixels provided by some embodiments of the present disclosure.
  • 5a-5d are schematic diagrams showing different ways of dividing pixel units in a pixel structure according to some embodiments of the present disclosure
  • FIG. 6 is a flow chart of steps of forming a color resist pattern of four different color sub-pixels by using three masks according to some embodiments of the present disclosure
  • Figure 7 is a schematic cross-sectional view of the embodiment of the present disclosure taken along the p-p' direction of Figure 1 .
  • a pixel structure provided by some embodiments of the present disclosure is mainly applicable to an OLED display panel, and the shape and arrangement manner of the sub-pixels are improved on the basis of the related pixel structure, so that the arrangement of the sub-pixels in the pixel structure is performed. More compact, the number of sub-pixels can be increased while the size of the display panel remains unchanged, thereby increasing the physical resolution of the display panel.
  • the pixel structure, the manufacturing method thereof and the display panel provided by some embodiments of the present disclosure are described in detail below.
  • FIG. 1 a partial structure diagram of a pixel structure according to some embodiments of the present disclosure is provided.
  • the pixel structure provided by some embodiments of the present disclosure includes a plurality of sub-pixels 101 arranged in a matrix and having a triangular shape.
  • a plurality of pixel units 102; as shown in FIG. 1, the pixel structure is only a part of the entire display panel, including 48 triangular sub-pixels, which can be regarded as a 4 ⁇ 12 matrix arrangement.
  • the plurality of sub-pixels 101 have four different colors (sub-pixels labeled 1, 2, 3, and 4 in FIG. 1 respectively represent sub-pixels of four different colors, and are respectively referred to as second colors for convenience of explanation.
  • Sub-pixel 2, sub-pixel 3 of the third color and sub-pixel 4) of the fourth color, and each pixel 102 can be composed of four different color sub-pixels to form a triangular structure (circle of the triangular dotted frame 10 in FIG. 1)
  • the four sub-pixels constitute one pixel unit).
  • the sub-pixel 1 of the first color in each pixel unit is located at the center position of the pixel unit, and the sub-pixels 2, 3, and 4 of the other three colors are respectively located at the positions of the three corners of the pixel unit, and respectively respectively The sub-pixels of the color share a triangle edge.
  • one pixel unit can be composed of four sub-pixels of different colors, the colors of two sub-pixels sharing the same triangle side are different; as shown in FIG. 1, 48 sub-pixels have four different colors, since each sub-pixel Since the pixels are all triangular structures, the sub-pixels adjacent to any sub-pixels are sub-pixels that share the same triangular side with the sub-pixels. For example, suppose that the sub-pixel at the position indicated by the 101 mark in FIG. 1 is the target sub-pixel, the color of the target sub-pixel is represented by 3, and the sub-pixel adjacent to the target sub-pixel is the same triangular edge, and there are three sub-pixels. All of the sub-pixels 1 of the first color, and the colors of the sub-pixels 1 of the three first colors are different from the target sub-pixels. For example, the first color is white, and the second to fourth colors are red, green, and blue, respectively.
  • the pixel structure in FIG. 1 includes 4 rows and 12 columns, and each row and each column of sub-pixels are alternately arranged by erect triangular sub-pixels and inverted triangular sub-pixels. Further, each of the six columns of sub-pixels is a group; each of the groups of sub-pixels includes four sub-pixels of different colors, and each of the groups is arranged in the same manner; The erect triangular sub-pixels in the group sub-pixel are respectively the other three different color sub-pixels, and the inverted triangular sub-pixels are the first color sub-pixels.
  • 2 is a schematic structural diagram of a first row of sub-pixels in FIG.
  • the sub-pixel 1 of the first color is an inverted triangle
  • the sub-pixels of the other three colors are erect.
  • the triangles, the erect triangles and the inverted triangles alternate.
  • the other lines are arranged in a similar way and will not be described here.
  • FIG. 3 is a schematic structural diagram of a first column of sub-pixels in FIG. 1 according to some embodiments of the present disclosure; in the figure, the sub-pixel 1 of the first color is an inverted triangle, and the sub-pixel 3 of the third color is an erect The triangles, the erect triangles and the inverted triangles alternate. The other columns are arranged in a similar manner and will not be described here.
  • the sub-pixels in the pixel structure provided by some embodiments of the present disclosure have four different colors. Since each sub-pixel is arranged in a matrix and the shape is triangular, each row and each column of sub-pixels can be made. The erect and inverted triangles are alternately arranged, and the colors of any two adjacent sub-pixels are different. Compared with the related art, the sub-pixels in the pixel structure are arranged more closely, so that the size of the display panel can be maintained. In the case of a change, the number of sub-pixels is increased, thereby increasing the physical resolution of the display panel.
  • the pixel structure provided by some embodiments of the present disclosure also has a certain repeatability, which is a group of six adjacent columns of sub-pixels; each of the groups of sub-pixels includes four sub-pixels of different colors, and Each group is arranged in the same way.
  • the first six columns in FIG. 1 are taken as the first group, and the last six columns are taken as the second group, wherein each of the sets of sub-pixels includes sub-pixels of four colors, and the first group and the second group
  • FIG. 4 is a schematic structural diagram of a group of sub-pixels provided by some embodiments of the present disclosure.
  • Figure 1 includes two sets of sub-pixels, and Figure 4 is a portion of Figure 1.
  • there may be other different grouping methods for example, starting with the second column, and the adjacent six columns as a group. The specific grouping method can be divided as needed.
  • the arrangement thereof also has the following rules. Specifically, the two rows of sub-pixels arranged in a row are arranged in the same manner. Therefore, the pixel structure provided by some embodiments of the present disclosure does not need to limit the number of rows when grouping, and may be one or more rows, because the arrangement of two rows of sub-pixels per row is exactly the same, as shown in FIG.
  • the first row and the third row are arranged in the same way; the second row and the fourth row are arranged in the same manner. That is, in each of the two rows of sub-pixels separated by one row, the colors of the respective sub-pixels located in the same column are the same.
  • the present disclosure is a pixel structure provided by the embodiment, the shape and arrangement of the sub-pixels are improved, so that the arrangement of the sub-pixels in the pixel structure is more tight, so that the size of the display panel can be increased while the size of the display panel remains unchanged.
  • the number of sub-pixels which in turn increases the physical resolution of the display panel.
  • the display resolution of the display panel may be improved.
  • adjacent pixels are different according to the division manner of the pixel unit.
  • One sub-pixel may be shared between the units.
  • each sub-pixel of the first color is used by only one pixel unit, and the other three color sub-pixels are shared by at least three different pixel units.
  • each sub-pixel 1 of the first color in the figure may be composed of one pixel unit with three adjacent sub-pixels of different colors, and each sub-pixel of the first color is only one pixel unit.
  • the figure includes 15 complete pixel units. Taking pixel unit 1021, pixel unit 1022 and pixel unit 1023 circled by three triangular dotted frames in the figure as an example, three pixel units share one sub-pixel 2 of the second color, and other sub-pixels can be divided. It is shared by three different pixel units and will not be described in detail here.
  • two adjacent pixel units share one sub-pixel.
  • the adjacent two pixel units may have an intersection between them, and may be adjacent to each other or may be adjacent to each other.
  • the first row and the second row include the pixel unit 1024 and the pixel unit 1025, and the two pixel units share one sub-pixel of the same color, that is, the second color.
  • Sub-pixel 2; and the pixel unit 1026 and the pixel unit 1027 are included in the third row and the fourth row, and the two pixel units share one sub-pixel of the same color, that is, the sub-pixel 4 of the fourth color;
  • the third neutron pixel does not constitute a pixel unit, and thus, the extra first color sub-pixel is left at this time, as shown in the sub-pixel A in FIG. 5b, which does not constitute any pixel unit, and is a redundant sub-pixel.
  • the first color sub-pixel is a white sub-pixel, it can be used to adjust the brightness of the display panel.
  • the pixel unit 1028 and the pixel unit 1029 are included in the first row and the second row, and the sub-pixels are not shared between the two pixel units; the second row and the third row
  • the pixel unit 10210 and the pixel unit 10211 are included in the row, and the sub-pixels are not shared between the two pixel units; however, the pixel unit 1028 and the pixel unit 10210 are two pixel units adjacent to each other, and a common one is shared between the two.
  • the sub-pixel 4 of the fourth color; the pixel unit 1029 and the pixel unit 10211 are two pixel units adjacent to each other, and a sub-pixel 3 of a third color is shared between the two.
  • the extra sub-pixels that do not constitute any pixel unit can be used to adjust the brightness of the display panel or to compensate for the corresponding color during the actual display process.
  • the sub-pixels may not be shared between the pixel units as needed. Specifically, the sub-pixels in each pixel unit are used only by the one pixel unit. As shown in FIG. 5d, the pixel unit 10212 and the pixel unit 10213 are included in the first row and the second row, and the sub-pixels are not shared between the two pixel units; thus, the remaining four sub-pixels are left at this time. That is, the three first color sub-pixels 1 and the fourth color sub-pixels 4 located between the pixel unit 10212 and the pixel unit 10213 in the figure do not constitute any pixel unit, and are redundant sub-pixels, which can be used in the actual display process. To adjust the brightness of the display panel or to compensate for the corresponding color (such as the color corresponding to the fourth color sub-pixel 4).
  • the sub-pixels of the other three colors except the sub-pixel of the first color may be shared by the pixel unit, and thus, the size of the display panel remains unchanged. In this case, the number of pixel units can be increased, and the display resolution of the display panel can be improved.
  • the sub-pixels of the first color may be stacked sub-pixels.
  • the sub-pixels of the first color are single-layer color resists corresponding to the adjacent plurality of sub-pixel regions. Subpixels that overlap.
  • the color resistance of the corresponding color is set in the sub-pixel region, for example, a red color resistance is set in the red sub-pixel region, a green color resistance is set in the green sub-pixel region, and a blue color resistance is set in the blue sub-pixel region; Therefore, it will not be repeated.
  • a red color resistance is set in the red sub-pixel region
  • a green color resistance is set in the green sub-pixel region
  • a blue color resistance is set in the blue sub-pixel region
  • the sub-pixel of the first color can be used as a sub-pixel capable of compensating for a certain color, and the specific color can be set as needed.
  • the first color comprises white, purple, yellow, or cyan.
  • the other three colors are the basic three primary colors. In some embodiments, the other three colors are red, green, and blue, respectively.
  • a single-layer color resistance of the R sub-pixel, the G sub-pixel, and the B sub-pixel may be simultaneously evaporated at the position where the sub-pixel of the first color is located, such that You can get white subpixels.
  • the sub-pixels of the first color can be set to compensate for purple and blue-green, and the blue sub-pixels can be compensated, thereby greatly improving the blue light. Brightness and extend its life.
  • a single layer color resistance of the R sub-pixel and the B sub-pixel may be evaporated, or a single-layer color resistance of the G sub-pixel and the B sub-pixel.
  • the shapes of the sub-pixels and the pixel units are all equilateral triangles. As shown in FIG. 1 to FIG. 5d, the sub-pixels and the pixel units in the figure are all equilateral triangle structures.
  • some embodiments of the present disclosure further provide a display panel including the above-described pixel structure provided by some embodiments of the present disclosure.
  • a display panel including the above-described pixel structure provided by some embodiments of the present disclosure.
  • some embodiments of the present disclosure further provide a display method of a pixel structure, including the steps of: controlling a sub-pixel of a first color in each pixel unit to perform image gray scale display; and, controlling The sub-pixels of the first color included in any of the pixel units are subjected to brightness adjustment display.
  • the sub-pixel of the first color may be divided into the pixel unit due to the difference in the division manner of the pixel unit.
  • the sub-pixel in which the first color appears does not belong to any pixel.
  • the sub-pixel of the first color is controlled to perform image gray-scale display; and if the first color
  • the sub-pixel is not included in any pixel unit, and the sub-pixel of the first color is controlled to perform brightness adjustment display.
  • the method of control is different according to the division of the pixel unit.
  • the first color sub-pixel is a white sub-pixel.
  • the sub-pixels in FIG. 5a to FIG. 5d are shared, if some sub-pixels are shared by at least two pixel units, in some embodiments, two adjacent pixel units share one sub-pixel of the same color for image. Gray scale display. In the process of real display of the pixel structure, the shared sub-pixels should comprehensively consider the display gray scale of the two pixel units, so that both pixel units can achieve normal display.
  • some embodiments of the present disclosure further provide a method for fabricating the above pixel structure, including the steps of: forming a color resist pattern of four different color sub-pixels in a pixel structure by using three masks to make any phase
  • the two sub-pixels of the neighbor have different colors.
  • the color resist pattern of the sub-pixels of the four colors can be formed by three masks, which can save the number of masks, save production cost and simplify the manufacturing process.
  • a flow chart of a step of forming a color resist pattern of four different color sub-pixels by using three masks may be specifically implemented by the following steps:
  • Step 601 forming a pattern of all red color resists in the pixel structure by using the first mask.
  • Step 602 forming a pattern of all green color resists in the pixel structure by using the second mask.
  • Step 603 forming a pattern of all blue color resists in the pixel structure by using the third mask to obtain a color resist pattern of four different color sub-pixels in the pixel structure.
  • the present disclosure is described by taking a single-layer color resistance of the R sub-pixel, the G sub-pixel, and the B sub-pixel by using three masks, and the first color sub-pixel as an example. Since the first color sub-pixel is a sub-pixel formed by overlapping a single layer of color resistance corresponding to the adjacent plurality of sub-pixel regions, the first color can be simultaneously produced when the single-layer color resistance corresponding to the other sub-pixel regions is created.
  • the color resist pattern of the region where the sub-pixel is located can further save the preparation process and preparation time of the sub-pixel of the first color, and improve the preparation efficiency of the pixel structure.
  • step 601, step 602, and step 603 can be set according to the pattern arrangement order of the color resist stacks of the region where the first color sub-pixel is located.
  • 701 is a pixel defining layer for defining a light emitting region, wherein the first color sub-pixel is formed by overlapping a single layer color resist of the R sub-pixel, the G sub-pixel, and the B sub-pixel, because the first color sub-pixel is located In the area, the single-layer color resistance of the R sub-pixel is located at the bottom layer, the single-layer color resistance of the G sub-pixel is located at the middle position, and the single-layer color resistance of the B sub-pixel is located at the uppermost layer. Therefore, in actual production, step 601 is required.
  • the sequence of steps 602 and 603 is performed. When the arrangement of the color resistance of the single layer in the region where the first color sub-pixel is located is changed, the sequence of step 601, step 602 and step 603 is also changed accordingly.
  • some embodiments of the present disclosure provide a pixel structure, a method for fabricating the same, and a display panel.
  • the sub-pixels in the pixel structure have four different colors, and three sub-pixels of different colors form a triangle.
  • the pixel unit is arranged in a matrix and has a triangular shape, so that each row and each column of sub-pixels can be alternately arranged by erect and inverted triangles, and any two of the same triangular sides can be shared.
  • the color of the pixel is different, and the arrangement of the pixel structure is repetitive. Therefore, the arrangement of each sub-pixel in the pixel structure is more compact, so that the sub-pixel can be added while the size of the display panel remains unchanged.
  • the number increases the physical resolution of the display panel.
  • the sub-pixels of the other three colors except the first color may be shared by different pixel units, and thus, when the size of the display panel remains unchanged, Increasing the number of pixel units can further increase the display resolution of the display panel.
  • Embodiments of the present disclosure also provide a display device including the display panel as described above.
  • the display device may be any product or component having a display function such as a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.

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  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
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Abstract

像素结构、其制作方法、显示面板及显示装置，该像素结构包括多个形状均为三角形的子像素（101）；由四种不同颜色的子像素（1、2、3、4）构成一个像素单元（102）；任意共用同一条三角边的两个子像素（101）的颜色不同；每一行和每一列子像素（101）均由正立的三角形子像素（101）和倒立的三角形子像素（101）交替排列组成；以每相邻的六列子像素（101）为一组；每一行均包括四种不同颜色的子像素（1、2、3、4），且每一组的排列方式均相同；正立的三角形子像素（101）为其它三种不同颜色的子像素（2、3、4），倒立的三角形子像素（101）均为第一颜色的子像素（1）。

Description

像素结构、其制作方法、显示面板及显示装置
相关申请的交叉引用
本申请要求于2017年5月12日提交的中国专利申请第201710335252.3号的优先权，该申请的公开通过引用被全部结合于此。
技术领域
本申请涉及像素结构、其制作方法、显示面板及显示装置。
背景技术
相关的OLED(Organic Light-Emitting Diode，有机发光二极管)显示面板中，按照发光颜色可以将子像素分为红R子像素、绿G子像素和蓝B子像素，且三个相邻的R子像素、G子像素和B子像素可以组成一个像素单元。OLED显示面板实现彩色化显示的原理为：子像素通过其包括的有机电致发光层发光，R、G、B三个子像素发出不同亮度的光，由于每个像素单元非常小，视觉上就会将R、G、B三个子像素发出的光混合形成每个像素单元所要显示的颜色。
发明内容
本公开一些实施例提供的一种像素结构，包括多个呈矩阵排列且形状均为三角形的子像素，并且所述像素结构包括多个像素单元；其中，所述多个子像素具有四种不同的颜色，每个像素单元是由四种不同颜色的子像素构成的一个三角形结构；每个所述像素单元中的第一颜色的子像素位于所述像素单元的中心位置，其它三种颜色的子像素分别位于所述像素单元中三个角的位置、且分别与所述第一颜色的子像素共用一条三角边；所述像素结构中任意共用同一条三角边的两个子像素的颜色不同；每一行和每一列子像素均由正立的三角形子像素和倒立的三角形子像素交替排列组成；以每相邻的六列子像素为一组，所述每一组子像素中的每一行均包括四种不同颜色的子像素，且所述每一组的排列方式均相同；所述每一组子像素中正立的三角形子像素分别为所述其它三种不同颜色的子像素，所述倒立的三角形子像素均为所述第一颜色的子像素。
在一些实施例中，每间隔一行的两行子像素的排列方式相同。
在一些实施例中，每个所述第一颜色的子像素均仅被一个像素单元使用，所述其它三种颜色的子像素均至少被三个不同的像素单元所共用。
在一些实施例中，相邻的两个像素单元共用一个子像素。
在一些实施例中，每个像素单元中的子像素均仅被所述像素单元使用。
在一些实施例中，所述第一颜色的子像素为由相邻的多个所述子像素区域对应的单层色阻交叠而成的子像素。
在一些实施例中，所述第一颜色包括白色、紫色、黄色或蓝绿色。
在一些实施例中，所述其它三种颜色分别为红色、绿色和蓝色。
在一些实施例中，所述子像素以及所述像素单元的形状均为等边三角形。
本公开一些实施例还提供了一种显示面板，包括：如本公开一些实施例提供的上述像素结构。
本公开一些实施例还提供了一种如本公开一些实施例提供的上述像素结构的显示方法，该方法包括：控制每个的像素单元中的第一颜色的子像素进行图像灰阶显示；以及，控制不包含在任意像素单元之内的第一颜色的子像素进行亮度调节显示。
在一些实施例中，相邻两个像素单元共用一个相同颜色的子像素进行图像灰阶显示。
本公开一些实施例还提供了一种如本公开一些实施例提供的上述像素结构的制作方法，该方法包括：利用三块掩膜版形成像素结构中四种不同颜色子像素的色阻图案，使任意相邻的两个子像素的颜色不同。
在一些实施例中，利用三块掩膜版形成像素结构中四种不同颜色子像素的色阻图案，包括：利用第一块掩膜版形成像素结构中的所有红色色阻的图案；以及，利用第二块掩膜版形成像素结构中的所有绿色色阻的图案；以及，利用第三块掩膜版形成像素结构中的所有蓝色色阻的图案，得到像素结构中四种不同颜色子像素的色阻图案。
附图说明
图1为本公开一些实施例提供的一种像素结构的部分结构示意图；
图2为本公开一些实施例提供的图1中第一行子像素的结构示意图；
图3为本公开一些实施例提供的图1中第一列子像素的结构示意图；
图4为本公开一些实施例提供的一组子像素的结构示意图；
图5a-图5d为本公开一些实施例提供的像素结构中像素单元的不同划分方式的示意图；
图6为本公开一些实施例提供的利用三块掩膜版形成四种不同颜色子像素的色阻图案的步骤流程图；
图7为本公开一些实施例提供的沿图1中p-p’方向切割后的截面示意图。
具体实施方式
下面将结合本公开一些实施例中的附图，对本公开一些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公开一部分实施例，并不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
其中，附图中各个结构的大小和区域形状不反映其真实比例，目的只是示意说明本公开的内容。
本公开一些实施例提供的一种像素结构，主要适用于OLED显示面板，是在相关像素结构的基础上，对子像素的形状和排列方式进行了改进，使像素结构中各子像素的排列方式更加紧密，可以在显示面板的尺寸保持不变的情况下，增加子像素的数量，进而提高显示面板的物理分辨率。下面分别对本公开一些实施例提供的像素结构、其制作方法及显示面板进行详细的说明。
如图1所示，为本公开一些实施例提供的一种像素结构的部分结构示意图；本公开一些实施例提供的像素结构，包括多个呈矩阵排列、且形状均为三角形的子像素101，多个像素单元102；如图1中所示，该像素结构仅是整个显示面板中的一部分，其中包括48个三角形的子像素，可以看作是呈4×12的矩阵排列形式。
具体的，多个子像素101具有四种不同的颜色(图1中标有1、2、3、4的子像素分别表示四种不同颜色的子像素，之后为了方便说明，分别称为第二颜色的子像素2，第三颜色的子像素3和第四颜色的子像素4)，并每个像素102可以由四种不同颜色的子像素构成一个三角形结构(图1中的三角形虚线框10所圈的四个子像素即构成一个像素单元)。其中，每个像素单元中的第一颜色的子像素1位于像素单元的中心位置，其它三种颜色的子像素2、3和4分别位于像素单元中三个角的位置、且分别与第一颜色的子像素共用一条三角边。
除了可以由四种不同颜色的子像素构成一个像素单元之外，任意共用同一条三角边的两个子像素的颜色不同；如图1所示，48个子像素具有四种不同的颜色，由于每个子像素均为三角形的结构，因此与任意子像素相邻的子像素即为与该子像素共用同一条三角边的子像素。 例如，假设图1中101标号所指的位置的子像素为目标子像素，目标子像素的颜色用3表示，与目标子像素相邻的为与其共用同一条三角边的子像素，有三个子像素，均为第一颜色的子像素1，而且三个第一颜色的子像素1的颜色均与目标子像素不同。例如，所述第一颜色为白色，第二到第四颜色分别为红、绿、蓝色。
图1中的像素结构包括4行12列，每一行和每一列子像素均由正立的三角形子像素和倒立的三角形子像素交替排列组成。另外以每相邻的六列子像素为一组；所述每一组子像素中的每一行均包括四种不同颜色的子像素，且所述每一组的排列方式均相同；所述每一组子像素中正立的三角形子像素分别为所述其它三种不同颜色的子像素，所述倒立的三角形子像素均为所述第一颜色的子像素。如图2所示，为本公开一些实施例提供的图1中第一行子像素的结构示意图；图中第一颜色的子像素1为倒立的三角形，其它三种颜色的子像素为正立的三角形，正立的三角形和倒立的三角形交替排列。其它每行的排列方式类似，在此不做介绍。
如图3所示，为本公开一些实施例提供的图1中第一列子像素的结构示意图；图中第一颜色的子像素1为倒立的三角形，而第三颜色的子像素3为正立的三角形，正立的三角形和倒立的三角形交替排列。其它每列的排列方式类似，在此不做介绍。
在具体实施时，本公开一些实施例提供的像素结构中的子像素具有四种不同的颜色，由于各子像素呈矩阵排列、且形状均为三角形，因而可以使每一行和每一列子像素均由正立和倒立三角形交替排列、且使任意相邻的两个子像素的颜色不同，相比于相关技术，该像素结构中各子像素的排列方式更加紧密，因此可以在显示面板的尺寸保持不变的情况下，增加子像素的数量，进而提高显示面板的物理分辨率。
另外，本公开一些实施例提供的像素结构还具有一定的重复性，以每相邻的六列子像素为一组；每一组子像素中的每一行均包括四种不同颜色的子像素，且每一组的排列方式均相同。将图1中的前六列作为第一组，后六列作为第二组，其中，每一组子像素中的每一行均包括四种颜色的子像素，而且第一组和第二组的排列方式相同。如图4所示，为本公开一些实施例提供的一组子像素的结构示意图。图1中包括两组子像素，图4为图1中的一部分。当然，也可以有其它不同的分组方式，例如，以第二列开始起算，相邻的六列作为一组等。具体的分组方式可以根据需要进行划分。
但由于本公开一些实施例提供的像素结构，其排列方式还具有以下规律。具体的，每间隔一行的两行子像素的排列方式相同。因此，本公开一些实施例提供的像素结构，分组时并 不需要限定行的数量，可以是一行或者多行，因为每间隔一行的两行子像素的排列方式完全相同，如图1所示，图中第一行和第三行的排列方式相同；第二行和第四行的排列方式相同。即每间隔一行的两行子像素中，位于同一列的各个子像素的颜色相同。
由于本公开是实施例提供的像素结构对子像素的形状和排列方式进行了改进，使像素结构中各子像素的排列方式更加紧密，因而可以在显示面板的尺寸保持不变的情况下，增加子像素的数量，进而提高显示面板的物理分辨率。
在具体实施时，除了可以提高显示面板的物理分辨率之外，还可以提高显示面板的显示分辨率，本公开一些实施例提供的像素结构中，根据像素单元划分方式的不同，相邻的像素单元之间可以共用一个子像素，在一些实施例中，每个第一颜色的子像素均仅被一个像素单元使用，其它三种颜色的子像素均至少被三个不同的像素单元所共用。
如图5a所示，图中每个第一颜色的子像素1均可以与相邻的三个不同颜色的子像素组成一个像素单元，且每个第一颜色的子像素均仅被一个像素单元使用，图中包括15个完整的像素单元。以图中三个三角形虚线框所圈的像素单元1021、像素单元1022和像素单元1023为例，三个像素单元共用一个第二颜色的子像素2，而其它的子像素与其类似，均可以划分为是被三个不同的像素单元共用，在此不做详细介绍。
除了其它三种颜色的子像素均至少被三个不同的像素单元所共用外，还可以有多种其它不同的像素单元划分方式。
具体的，相邻的两个像素单元共用一个子像素。而相邻是指的两个像素单元之间有交集即可，可以是左右相邻，也可以上下相邻。
针对左右相邻的划分方式，如图5b所示，第一行和第二行中包括像素单元1024和像素单元1025，且这两个像素单元共用一个相同颜色的子像素，即第二颜色的子像素2；而第三行和第四行中包括像素单元1026和像素单元1027，且这两个像素单元共用一个相同颜色的子像素，即第四颜色的子像素4；但第二行和第三中子像素并不再构成像素单元，因而，此时会剩下多余的第一颜色子像素，如图5b中的子像素A，其没有构成任何像素单元，为多余的子像素，在实际显示过程中，当第一颜色子像素为白色子像素时，可以用来调节显示面板的亮度。
针对上下相邻的划分方式，如图5c所示，第一行和第二行中包括像素单元1028和像素单元1029，且这两个像素单元之间不共用子像素；第二行和第三行中包括像素单元10210和像素单元10211，且这两个像素单元之间也不共用子像素；但像素单元1028和像素单元10210 为上下相邻的两个像素单元，两者之间共用了一个第四颜色的子像素4；像素单元1029和像素单元10211为上下相邻的两个像素单元，两者之间共用了一个第三颜色的子像素3。没有构成任何像素单元的多余子像素，在实际显示过程中，可以用来调节显示面板的亮度或者是用来补偿相应的颜色。
另外，在划分像素单元时，也可以根据需要设置为像素单元之间不共用子像素，具体的，每个像素单元中的子像素均仅被这一个像素单元使用。如图5d所示，第一行和第二行中包括像素单元10212和像素单元10213，且这两个像素单元之间并不共用子像素；因而，此时会剩下多余的四个子像素，即图中位于像素单元10212和像素单元10213之间的三个第一颜色子像素1和第四颜色子像素4，没有构成任何像素单元，为多余的子像素，在实际显示过程中，可以用来调节显示面板的亮度或者是用来补偿相应的颜色(如第四颜色子像素4对应的颜色)。
本公开一些实施例提供的像素结构，在划分像素单元时，除第一颜色的子像素外的其它三种颜色的子像素均可以被像素单元所共用，因而，在显示面板的尺寸保持不变的情况下，可以增加像素单元的个数，进而可以提高显示面板的显示分辨率。
在具体实施时，为了节省制作工艺，第一颜色的子像素可以为叠层子像素，在一些实施例中，第一颜色的子像素为由相邻的多个子像素区域对应的单层色阻交叠而成的子像素。
本领域技术人员公知的，子像素区域内设置相应颜色的色阻，例如，红色子像素区域内设置红色色阻，绿色子像素区域设置绿色色阻，蓝色子像素区域内设置蓝色色阻；因此不再赘述。本公开一些实施例中，利用多个单层色阻交叠形成第一颜色的子像素，可以节省第一颜色的子像素的制备工序和制备时间，从而提高像素结构的制备效率。
具体的，第一颜色的子像素可以作为能够补偿一定颜色的子像素，具体的颜色可以根据需要进行设置。在一些实施例中，第一颜色包括白色、紫色、黄色或蓝绿色。而其它的三种颜色为基本的三原色。在一些实施例中，其它三种颜色分别为红色、绿色和蓝色。
为了可以补偿像素结构中的蓝光，对于第一颜色的子像素，可以选择在第一颜色的子像素所在的位置同时蒸镀R子像素、G子像素和B子像素的单层色阻，这样就可以得到白色子像素。
又或者是，在子像素蒸镀的时候不选择三个颜色都蒸镀，可以蒸镀其中两种，这样白色子像素就可以变为其他颜色。由于目前相关的子像素中，蓝色子像素发光效率较低，寿命较短，可以将第一颜色的子像素设置为补偿紫色和蓝绿色，进而对蓝色子像素进行补偿，可以 大大提高蓝光的亮度，并且延长其使用寿命。例如，可以蒸镀R子像素和B子像素的单层色阻，或者是由G子像素和B子像素的单层色阻。
在具体实施时，为了使子像素的排列更加紧密，在一些实施例中，子像素以及像素单元的形状均为等边三角形。如图1-图5d所示，图中的子像素以及像素单元均为等边三角形的结构。
基于同一发明构思，本公开一些实施例还提供了一种显示面板，包括本公开一些实施例提供的上述像素结构。该显示面板的实施可以参见上述像素结构的实施例，重复之处不再赘述。
基于同一发明构思，本公开一些实施例还提供了一种像素结构的显示方法，如包括以下步骤：控制每个的像素单元中的第一颜色的子像素进行图像灰阶显示；以及，控制不包含在任意像素单元之内的第一颜色的子像素进行亮度调节显示。
在具体实施时，由于像素单元划分方式的不同，第一颜色的子像素可以被划分到像素单元中，也可以如图5b-图5d中所示，出现第一颜色的子像素不属于任何像素单元的情况，因此，此时在进行像素结构的显示时，如果第一颜色的子像素被划分到像素单元中，则控制该第一颜色的子像素进行图像灰阶显示；而如果第一颜色的子像素不包含在任意像素单元之内，则控制该第一颜色的子像素进行亮度调节显示。针对每一个第一颜色的子像素，具体如何进行控制，根据划分像素单元的不同，控制的方法也不相同。具体的，第一颜色子像素为白色子像素。
另外，针对上述图5a-图5d中子像素被共用的情况，如果有子像素被至少两个像素单元共用，在一些实施例中，相邻两个像素单元共用一个相同颜色的子像素进行图像灰阶显示。在像素结构进行真正显示的过程中，共用的子像素要综合考虑两个像素单元的显示灰阶，以便能够使两个像素单元均实现正常显示。
基于同一发明构思，本公开一些实施例还提供了一种上述像素结构的制作方法，包括以下步骤：利用三块掩膜版形成像素结构中四种不同颜色子像素的色阻图案，使任意相邻的两个子像素的颜色不同。通过三块掩膜版可以形成四种颜色的子像素的色阻图案，可以节省掩膜板的数量，方便节省制作成本和简化制作工艺。
如图6所示，为本公开一些实施例提供的利用三块掩膜版形成四种不同颜色子像素的色阻图案的步骤流程图，具体可以采用如下步骤实现：
步骤601，利用第一块掩膜版形成像素结构中的所有红色色阻的图案；以及，
步骤602，利用第二块掩膜版形成像素结构中的所有绿色色阻的图案；以及，
步骤603，利用第三块掩膜版形成像素结构中的所有蓝色色阻的图案，得到像素结构中四种不同颜色子像素的色阻图案。
在具体实施时，本公开仅以利用三块掩膜版形成R子像素、G子像素和B子像素的单层色阻，以及第一颜色子像素为例进行说明。由于第一颜色子像素为由相邻的多个子像素区域对应的单层色阻交叠而成的子像素，因而可以在制作其它子像素区域对应的单层色阻时，同时制作第一颜色子像素所在区域的色阻图案，进而可以节省第一颜色的子像素的制备工序和制备时间，提高像素结构的制备效率。
具体的，步骤601，步骤602和步骤603，之间具体的先后关系，可以根据第一颜色子像素所在区域的色阻叠层的图案排列顺序进行设置。
如图7所示，为本公开一些实施例提供的沿图1中p-p’方向切割后的截面示意图。图中701为用于限定发光区域的像素定义层，图中第一颜色子像素由R子像素、G子像素和B子像素的单层色阻交叠形成，由于在第一颜色子像素所在区域中，R子像素的单层色阻位于最底层，G子像素的单层色阻位于中间位置，B子像素的单层色阻位于最上层，因此在实际制作时，需要按照步骤601，步骤602和步骤603的顺序进行制作。而当第一颜色子像素所在区域中单层色阻的排列方式变化后，步骤601，步骤602和步骤603的先后顺序也相应的进行变化。
综上所述，本公开一些实施例提供的一种像素结构、其制作方法及显示面板，该像素结构中的子像素具有四种不同的颜色，并由四种不同颜色的子像素构成一个三角形的像素单元，由于各子像素呈矩阵排列、且形状均为三角形，因而可以使每一行和每一列子像素均由正立和倒立三角形交替排列、且使任意任意共用同一条三角边的两个子像素的颜色不同，同时该像素结构的排列方式又具有重复性，因而，该像素结构中各子像素的排列方式更加紧密，因此可以在显示面板的尺寸保持不变的情况下，可以增加子像素的数量，进而提高显示面板的物理分辨率。另外，本公开一些实施例提供的像素结构，除第一颜色外的其它三种颜色的子像素均可以被不同的像素单元所共用，因而，在显示面板的尺寸保持不变的情况下，可以增加像素单元的个数，进而可以提高显示面板的显示分辨率。
本公开的实施例还提供了一种显示装置，包括如上所述的显示面板。显示装置可以是：液晶面板、电子纸、OLED面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (15)

  1. 一种像素结构，包括多个呈矩阵排列且形状均为三角形的子像素，并且所述像素结构包括多个像素单元；其中，
    所述多个子像素具有四种不同的颜色，每个像素单元是由四种不同颜色的子像素构成的一个三角形结构；
    每个所述像素单元中的第一颜色的子像素位于所述像素单元的中心位置，其它三种颜色的子像素分别位于所述像素单元中三个角的位置、且分别与所述第一颜色的子像素共用一条三角边；
    所述像素结构中任意共用同一条三角边的两个子像素的颜色不同；
    每一行和每一列子像素均由正立的三角形子像素和倒立的三角形子像素交替排列组成；
    以每相邻的六列子像素为一组，所述每一组子像素中的每一行均包括四种不同颜色的子像素，且所述每一组的排列方式均相同；
    所述每一组子像素中正立的三角形子像素分别为所述其它三种不同颜色的子像素，所述倒立的三角形子像素均为所述第一颜色的子像素。
  2. 如权利要求1所述的像素结构，其中，每间隔一行的两行子像素的排列方式相同。
  3. 如权利要求1所述的像素结构，其中，每个所述第一颜色的子像素均仅被一个像素单元使用，所述其它三种颜色的子像素均至少被三个不同的像素单元所共用。
  4. 如权利要求1所述的像素结构，其中，相邻的两个像素单元共用一个子像素。
  5. 如权利要求1所述的像素结构，其中，每个像素单元中的子像素均仅被所述像素单元使用。
  6. 如权利要求1所述的像素结构，其中，所述第一颜色的子像素为由相邻的多个所述子像素区域对应的单层色阻交叠而成的子像素。
  7. 如权利要求1所述的像素结构，其中，所述第一颜色包括白色、紫色、黄色或蓝绿色。
  8. 如权利要求1所述的像素结构，其中，所述除第一颜色外的其它三种颜色分别为红色、绿色和蓝色。
  9. 如权利要求1-6任一项所述的像素结构，其中，所述子像素以及所述像素单元的形状均为等边三角形。
  10. 一种显示面板，包括：如权利要求1-9任一项所述的像素结构。
  11. 一种如权利要求1-9任一项所述像素结构的显示方法，其特征在于，该方法包括：
    控制每个的像素单元中的第一颜色的子像素进行图像灰阶显示；以及，
    控制不包含在任意像素单元之内的第一颜色的子像素进行亮度调节显示。
  12. 如权利要求11所述的显示方法，其中，相邻两个像素单元共用一个相同颜色的子像素进行图像灰阶显示。
  13. 一种如权利要求1-9任一项所述像素结构的制作方法，其中，该方法包括：
    利用三块掩膜版形成像素结构中四种不同颜色子像素的色阻图案，得到如权利要求1-9任一项所述的像素结构。
  14. 如权利要求13所述的制作方法，其中，利用三块掩膜版形成像素结构中四种不同颜色子像素的色阻图案，包括：
    利用第一块掩膜版形成像素结构中的所有红色色阻的图案；以及，
    利用第二块掩膜版形成像素结构中的所有绿色色阻的图案；以及，
    利用第三块掩膜版形成像素结构中的所有蓝色色阻的图案，得到像素结构中四种不同颜色子像素的色阻图案。
  15. 一种显示装置，包括如权利要求10所述的显示面板。
PCT/CN2018/071551 2017-05-12 2018-01-05 像素结构、其制作方法、显示面板及显示装置 Ceased WO2018205662A1 (zh)

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