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WO2016058326A1 - 像素结构、显示基板和显示装置 - Google Patents

像素结构、显示基板和显示装置 Download PDF

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Publication number
WO2016058326A1
WO2016058326A1 PCT/CN2015/074508 CN2015074508W WO2016058326A1 WO 2016058326 A1 WO2016058326 A1 WO 2016058326A1 CN 2015074508 W CN2015074508 W CN 2015074508W WO 2016058326 A1 WO2016058326 A1 WO 2016058326A1
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Prior art keywords
pixel
sub
pixels
unit
green
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PCT/CN2015/074508
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English (en)
French (fr)
Inventor
王志东
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京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Priority to US14/775,054 priority Critical patent/US9799253B2/en
Publication of WO2016058326A1 publication Critical patent/WO2016058326A1/zh

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    • 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
    • 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
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours

Definitions

  • Embodiments of the present invention relate to a pixel structure, a display substrate, and a display device.
  • RGB red, green and blue
  • RGBW red, green, blue and white
  • the arrangement structure of the RGBW four-color sub-pixel is generally divided into two types: a stripe shape and a checkerboard shape, wherein FIG. 1 and FIG. 2 are schematic diagrams showing a RGBW four-color sub-pixel structure in a stripe-like arrangement structure. 3 is a schematic diagram of a RGBW four-color sub-pixel structure in a checkerboard arrangement.
  • the W sub-pixel can only be adjacent to a certain seed pixel of the R, G, and B three-color sub-pixels, as shown in FIG.
  • the pixel is only adjacent to the B sub-pixel; when the W sub-pixel is located between two sub-pixels of the R, G, B tri-color sub-pixel, the W sub-pixel is adjacent to the two seed pixels at the same time, as shown in FIG. 2,
  • the sub-pixels are located between the G and B sub-pixels and are adjacent to the G and B sub-pixels.
  • a pixel structure comprising a plurality of repeating units, each repeating unit comprising: a red sub-pixel having a triangular shape, a green sub-pixel, a blue sub-pixel, and a center sub-pixel, The color of the central sub-pixel is different from the red sub-pixel, the green sub-pixel, and the blue sub-pixel, and the three sides of the central sub-pixel correspond to one side of the red sub-pixel, the green sub-pixel, and the blue sub-pixel, respectively. adjacent.
  • the color of the central sub-pixel is yellow or white.
  • the shapes of the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the central sub-pixel are all equilateral triangles.
  • each repeating unit includes a first pixel unit
  • the first pixel unit package Includes a red subpixel, a green subpixel, a blue subpixel, and a center subpixel.
  • each repeating unit further includes: a second pixel unit that is centrally symmetric with the first pixel unit and collectively constitutes a repeating unit shaped as a diamond.
  • the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the central sub-pixel are all in the shape of an isosceles right triangle.
  • each repeating unit includes a third pixel unit including a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a center sub-pixel.
  • each of the repeating units further includes: a fourth pixel unit that is centrally symmetric with the third pixel unit to collectively form a repeating unit having a square shape.
  • hypotenuse of the central sub-pixel is correspondingly adjacent to the hypotenuse of the blue sub-pixel.
  • a display substrate comprising a substrate and a pixel structure formed on the substrate, the pixel structure being the pixel structure described above.
  • a display device comprising the display substrate described above.
  • FIG. 1 is a schematic view of a known pixel unit having a stripe-like arrangement
  • FIG. 2 is a schematic view of another known pixel unit having a stripe-like arrangement
  • FIG. 3 is a schematic view of another known pixel unit having a checkerboard arrangement
  • FIG. 4 is a schematic diagram of a first pixel unit arrangement structure according to an embodiment of the invention.
  • FIG. 5 is a schematic diagram of a sub-pixel structure in a repeating unit according to an embodiment of the invention.
  • FIG. 6 is a schematic diagram of a sub-pixel color arrangement structure according to an embodiment of the invention.
  • FIG. 7 is a schematic diagram of a third pixel unit arrangement structure according to another embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a sub-pixel structure in a repeating unit according to another embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a color arrangement of sub-pixels according to another embodiment of the present invention.
  • the W sub-pixel can only be adjacent to at most two of the R, G, B tris sub-pixels, and there is always at least one
  • the sub-pixels of the color cannot be adjacent to the W sub-pixels (such as the R and G sub-pixels in FIG. 1 and the R sub-pixels in FIG. 2), so that the color mixture is likely to be uneven.
  • the above pixel structure may have a problem of uneven color mixing, which affects the picture quality of the display screen.
  • An embodiment of the present invention provides a pixel structure including a plurality of repeating units, each of which includes:
  • the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the central sub-pixel are all triangular, and the color of the central sub-pixel is different from the red sub-pixel, the green sub-pixel, and the blue sub-pixel, and three of the central sub-pixels
  • the sides coincide with one side of the red sub-pixel, the green sub-pixel, and the blue sub-pixel.
  • the "coincidence” in the present invention means that the adjacent two sides are extremely close to each other, even reaching a state of complete coincidence, and the meaning of "coincidence" can be more clearly understood with reference to the drawings of the embodiment.
  • the color of the central sub-pixel may be yellow or white.
  • the sub-pixels of three colors and different colors of red, green and blue are arranged in the middle of the red, green and blue sub-pixels, and a good color mixing effect can be achieved.
  • yellow or white with a color that is far from the red, green, and blue colors is usually used.
  • the red, green and blue three-color sub-pixels are surrounded around the three sides of the central sub-pixel to ensure the central sub-image
  • the color is adjacent to the other three color sub-pixels, avoiding the problem of color mixing due to the fact that pixels of one color in the three-color sub-pixel are always adjacent to the central sub-pixel, and the color is improved while the color is improved.
  • the pixel colors are evenly mixed to improve the quality of the picture display.
  • the present example provides a pixel structure including a plurality of repeating units, each of which includes a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a center sub-pixel W, which are triangular in shape, for example, this embodiment
  • the shapes of the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B, and the central sub-pixel W are all equilateral triangles, and the arrangement of each sub-pixel is as shown in FIG. 4 .
  • Each repeating unit includes a first pixel unit, and the first pixel unit further includes a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a center sub-pixel W.
  • A1, A2, and A3 are R, G, and B sub-pixels, respectively, and A1, A2, and A3 constitute a first pixel unit.
  • the center sub-pixel W is located in the middle, and the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B are distributed around the center sub-pixel W.
  • the three sides of the central sub-pixel W are coincident with the R, G, and B color sub-pixels, and the four sub-pixels constituting the first pixel unit form a new equilateral triangle, wherein each side is any sub-pixel. Double the length of the side.
  • the order of the sub-pixels of the other three colors is not specifically limited, that is, R
  • the G, B sub-pixels may correspond to A1, A2, and A3 in FIG. 4, respectively, or the R, G, and B sub-pixels respectively correspond to A2, A3, and A1, or the R, G, and B sub-pixels respectively correspond to A3 and A1. And A2 and so on.
  • the repeating unit further includes:
  • the second pixel unit is symmetric with the center of the first pixel unit to form a repeating unit having a diamond shape.
  • the schematic diagram of the pixel structure of the repeating unit in this embodiment is as shown in FIG. 5 .
  • A4, A5, and A6 are R, G, and B sub-pixels, respectively, and A4, A5, and A6 constitute a second pixel unit.
  • the R, G, and B sub-pixels may respectively correspond to A3, A2, and A1 in FIG. 4 and A6, A4, and A5 in FIG. 5, and the pixel unit of the diamond formed by two pixel units is as shown in FIG. 6. Since the center sub-pixel W in the middle can be adjacent to the R, G, and B sub-pixels at the same time, the color mixture can be ensured. Constantly uniform to improve the quality of the picture display.
  • the first pixel unit may constitute a single pixel, or may be combined with the second pixel unit to form one pixel unit.
  • the repeating unit may include the first pixel unit, and may also include the first and second pixel units.
  • the color mixing effect of the repeating unit composed of the first and second pixel units is better. Since the repeating unit includes the first pixel unit and the second pixel unit that are symmetric with each other, the one side of the red sub-pixel R in one repeating unit is adjacent to the central sub-pixel W, and the other side is green with the other one.
  • the pixels G are adjacent to each other, and the phenomenon that the two red sub-pixels (or the green sub-pixels or the blue sub-pixels) of the two pixel units are adjacent to each other causes a poor color mixing effect to ensure a good color mixing effect.
  • the pixel structure provided in this example changes the rectangle of the existing pixel unit to a triangle, which overcomes the defect that the color sub-pixel cannot always be adjacent to the center sub-pixel due to the rectangle.
  • the triangle surrounds the red, green and blue tri-color sub-pixels around the three sides of the central sub-pixel of the triangle, ensuring that the central sub-pixel is adjacent to the other three-color sub-pixels, and the brightness of the sub-pixels can be evenly mixed while improving the brightness. Thereby improving the quality of the screen display.
  • the difference from the first example is that the shapes of the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the central sub-pixel are all isosceles right triangles, and the arrangement of each sub-pixel is as shown in FIG. 7 .
  • Each of the repeating units includes a third pixel unit, and the third pixel unit further includes a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a center sub-pixel W.
  • A1, A2, and A3 are R, G, and B sub-pixels, respectively, and A1, A2, and A3 constitute a third pixel unit.
  • the center sub-pixel W is located in the middle, and the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B are distributed in the center sub-pixel W.
  • the three sides of the central sub-pixel W overlap with the three color sub-pixels of R, G, and B, and the four sub-pixels constituting the third pixel unit form a new isosceles right-angled triangle, wherein each side length is any one.
  • the side of the pixel is twice as long.
  • the center sub-pixel W is located in the middle (that is, the three sides of the center sub-pixel W and the three sides of the three sub-pixels respectively (including the right-angled side and the oblique side), the rows of the remaining three color sub-pixels
  • the order of the cloth is not specifically limited.
  • the repeating unit further includes:
  • the fourth pixel unit, the fourth pixel unit and the third pixel unit are symmetric with respect to each other to form a repeating unit having a square shape.
  • the schematic diagram of the pixel structure of the repeating unit in this embodiment is as shown in FIG. 8 .
  • A4, A5, and A6 are R, G, and B sub-pixels, respectively, and A4, A5, and A6 constitute a fourth pixel unit. Since the three sides of the center sub-pixel W in the middle can coincide with one side of each of the R, G, and B sub-pixels, the color mixture can be ensured to be very uniform, and the picture display quality can be improved.
  • one side of the red sub-pixel R in one repeating unit can be adjacent to the central sub-pixel W, and the other side and the other side.
  • the green sub-pixels G in one pixel unit are adjacent to each other to ensure a good color mixing effect.
  • the hypotenuse of the central sub-pixel coincides with the hypotenuse of the blue sub-pixel, and the two right-angle sides of the central sub-pixel are respectively red
  • the sub-pixel and any one of the green sub-pixels coincide with each other, so that the contact area of the blue sub-pixel B and the white light can be increased, and the brightness can be improved, as shown in FIG.
  • Another embodiment of the present invention further provides a display substrate including a substrate and a pixel structure formed on the substrate, wherein the pixel structure is the pixel structure described in any of the above embodiments or examples.
  • the display substrate in this embodiment may be a color film substrate or a color light OLED substrate.
  • Still another embodiment of the present invention provides a display device including the above display substrate.
  • the display device can be any product or component having display function such as electronic paper, mobile phone, tablet computer, television, notebook computer, digital photo frame, navigator, and the like.
  • the arrangement structure of the conventional sub-pixels in a rectangular shape is changed, and the sub-pixel unit shape is designed into a triangle to make the red, green and blue three-color sub-pixels.
  • the central sub-pixel is adjacent to the remaining three-color sub-pixels, and the brightness of the sub-pixels can be uniformly mixed while improving the brightness, thereby improving the quality of the picture display.

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Abstract

一种像素结构、显示基板和显示装置。该像素结构包括多个重复单元，每个重复单元包括：形状均为三角形的红色子像素（A1）、绿色子像素（A2）、蓝色子像素（A3）以及中心子像素（W），所述中心子像素（W）的颜色与红色子像素（A1）、绿色子像素（A2）、蓝色子像素（A3）均不相同，且所述中心子像素（W）的三条边分别与红色子像素（A1）、绿色子像素（A2）、蓝色子像素（A3）的一条边重合。通过将子像素形状设计成三角形，使红绿蓝三色子像素（A1，A2，A3）围绕在中心子像素（W）三边的周围，保证中心子像素（W）与其余三色子像素（A1，A2，A3）均相邻，在提高亮度的同时，使颜色混合均匀，从而提高画面显示的品质。

Description

像素结构、显示基板和显示装置 技术领域
本发明实施例涉及一种像素结构、显示基板和显示装置。
背景技术
传统的显示屏均采用红绿蓝(即RGB)三色子像素结构，为满足显示屏高亮度以及低功耗的需求，业内曾提出采用红绿蓝白(即RGBW)四色子像素结构，通过增加W透明子像素，可以提高显示屏的显示亮度，从而降低功耗。
对于已知像素而言，RGBW四色子像素的排布结构一般分为条纹状和棋盘状两种，其中图1和图2为RGBW四色子像素结构呈条纹状排布结构的示意图，图3为RGBW四色子像素结构呈棋盘状排布结构的示意图。在条纹状排布结构中，当R、G、B相邻设置时，W子像素只能与R、G、B三色子像素的某一种子像素相邻，如图1所示，W子像素只与B子像素相邻；当W子像素位于R、G、B三色子像素的某两种子像素中间时，W子像素同时这两种子像素对应相邻，如图2所示，W子像素位于G、B子像素之间，并且与G、B子像素相邻。
发明内容
根据本发明的第一方面提供了一种像素结构，包括多个重复单元，每个重复单元包括：形状均为三角形的红色子像素、绿色子像素、蓝色子像素以及中心子像素，所述中心子像素的颜色与红色子像素、绿色子像素、蓝色子像素均不相同，且所述中心子像素的三条边分别与红色子像素、绿色子像素、蓝色子像素的一条边对应相邻。
在一个示例中，所述中心子像素的颜色为黄色或白色。
在一个示例中，所述红色子像素、所述绿色子像素、所述蓝色子像素以及所述中心子像素的形状均为等边三角形。
在一个示例中，每个重复单元包括第一像素单元，所述第一像素单元包 括一个红色子像素、一个绿色子像素、一个蓝色子像素以及一个中心子像素。
在一个示例中，每个重复单元还包括：第二像素单元，所述第二像素单元与所述第一像素单元中心对称，共同构成形状为菱形的重复单元。
在一个示例中，所述红色子像素、所述绿色子像素、所述蓝色子像素以及所述中心子像素的形状均为等腰直角三角形。
在一个示例中，每个重复单元包括第三像素单元，所述第三组素单元包括一个红色子像素、一个绿色子像素、一个蓝色子像素以及一个中心子像素。
在一个示例中，每个重复单元还包括：第四像素单元，所述第四组像素单元与所述第三像素单元中心对称，共同构成形状为正方形的重复单元。
在一个示例中，所述中心子像素的斜边与所述蓝色子像素的斜边对应相邻。
根据本发明的第二方面还提供了一种显示基板，包括基板以及形成在所述基板上的像素结构，所述像素结构为以上所述的像素结构。
根据本发明的第三方面还提供了一种显示装置，包括以上所述的显示基板。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1是具有条纹状排布结构的已知像素单元的示意图；
图2是具有条纹状排布结构的已知另一种像素单元的示意图；
图3是具有棋盘状排布结构的已知又一种像素单元示意图；
图4是根据本发明一实施例提供的第一像素单元排布结构的示意图；
图5是根据本发明一实施例提供的一个重复单元中子像素结构示意图；
图6是根据本发明一实施例提供的一种子像素颜色排布结构示意图；
图7是根据本发明另一实施例提供的第三像素单元排布结构的示意图；
图8是根据本发明另一实施例提供的一个重复单元中子像素结构示意图；
图9是根据本发明另一实施例提供的一种子像素颜色排布结构示意图。
具体实施方式
在已知像素结构中，无论位于边缘(图1)还是中间(图2)，W子像素最多只能与R、G、B三色子像素其中的两种子像素相邻，总有至少一种颜色的子像素无法与W子像素相邻(如图1中的R和G子像素，图2中的R子像素)，使得混色很容易发生不均。在图3所示的棋盘状排布结构中，无论采用何种顺序，W子像素也只能与三色子像素的某两种子像素(例如B和G子像素)相邻，仍然会有一种颜色的子像素(R子像素)无法与W子像素相邻，也会发生混色不均的问题。因此，采用以上像素结构会有混色不均的问题发生，影响显示屏的画面品质。
下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的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。
除非另作定义，此处使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本发明专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。
本发明一实施例提供了一种像素结构，包括多个重复单元，每个重复单元包括：
形状均为三角形的红色子像素、绿色子像素、蓝色子像素以及中心子像素，中心子像素的颜色与红色子像素、绿色子像素、蓝色子像素均不相同，且中心子像素的三条边分别与红色子像素、绿色子像素、蓝色子像素的一条边重合。本发明中的“重合”是指相邻的两条边极其接近，甚至达到完全重合的状态，参照实施例的附图可以更清楚理解“重合”的意思。
需要说明的是，中心子像素的颜色可以为黄色或白色，总之选用于红绿蓝三种颜色不同颜色的子像素设置在红绿蓝子像素的中间，均可以实现较好的混色效果，在实际应用中通常选用颜色与红绿蓝三色相差甚远的黄色或白色。
通过改变已知像素单元中矩形子像素的形状，通过将子像素形状设计成三角形，使红绿蓝三色子像素围绕在中心子像素三边的周围，保证中心子像 素与其余三色子像素均相邻，避免出现由于三色子像素中总会有一种颜色的像素无法与中心子像素相邻而产生的混色问题，在提高亮度的同时，还能实现各色子像素颜色混合均匀，从而提高画面显示的品质。
示例一
本示例提供了一种像素结构，包括多个重复单元，每个重复单元包括形状为三角形的红色子像素R、绿色子像素G、蓝色子像素B以及中心子像素W，例如，本实施例中红色子像素R、绿色子像素G、蓝色子像素B以及中心子像素W的形状均为等边三角形，各子像素的排列方式如图4所示。
每个重复单元包括第一像素单元，第一像素单元进一步包括一个红色子像素R、一个绿色子像素G、一个蓝色子像素B以及一个中心子像素W。图4中，A1、A2和A3分别为R、G、B子像素，且A1、A2和A3组成第一像素单元。
由于所有R、G、B、W子像素均为边长相等的等边三角形，中心子像素W位于中间，红色子像素R、绿色子像素G、蓝色子像素B分布在中心子像素W周围，中心子像素W的三条边均与R、G、B三种颜色子像素重合，构成第一像素单元的四个子像素构成一个新的等边三角形，其中每个边长为任一子像素的边长的两倍。
需要说明的是，只要保证中心子像素W位于中间(即中心子像素W的三边分别与三个子像素的三边重合)，其余三个颜色的子像素的排布顺序不作具体限定，即R、G、B子像素可以分别对应图4中的A1、A2和A3，还可以R、G、B子像素分别对应A2、A3和A1，或者是R、G、B子像素分别对应A3、A1和A2等。
在一个示例中，上述重复单元还包括：
第二像素单元，第二像素单元与第一像素单元中心对称，共同构成形状为菱形的重复单元，本实施例重复单元的像素结构示意图如图5所示。图5中A4、A5和A6分别为R、G、B子像素，且A4、A5和A6组成第二像素单元。
以R、G、B子像素可以分别对应图4中的A3、A2和A1以及对应图5中的A6、A4和A5为例，由两像素单元构成的菱形的像素单元如图6所示。由于中间的中心子像素W能同时与R、G、B子像素相邻，能够保证混色非 常均匀，提升画面显示品质。
需要说明的是，第一像素单元可以构成一个单独的像素，也可以与第二像素单元合起来构成一个像素单元。换言之，重复单元可以包括第一像素单元，也可以包括第一和第二像素单元。对于混色效果而言，由第一、第二像素单元构成重复单元的混色效果更好。由于重复单元中包括互为中心对称的第一像素单元和第二像素单元，使得一个重复单元中红色子像素R的一边与中心子像素W相邻，另一边与另外一个像素单元中的绿色子像素G相邻，避免出现两个像素单元中的两个红色子像素(或绿色子像素，或蓝色子像素)彼此相邻导致混色效果较差的现象，保证良好的混色效果。
综上所述，本示例提供的像素结构，将现有像素单元的矩形改为三角形，克服由于矩形总有一种颜色子像素不能与中心子像素对应相邻导致混色不均匀的缺陷。三角形使红绿蓝三色子像素围绕在三角形中心子像素三边的周围，保证中心子像素与其余三色子像素均相邻，在提高亮度的同时，还能实现各色子像素颜色混合均匀，从而提高画面显示的品质。
示例二
与示例一不同之处在于，本示例中红色子像素、绿色子像素、蓝色子像素以及中心子像素的形状均为等腰直角三角形，各子像素的排列方式如图7所示。
每个重复单元包括第三像素单元，第三像素单元进一步包括一个红色子像素R、一个绿色子像素G、一个蓝色子像素B以及一个中心子像素W。图7中A1、A2和A3分别为R、G、B子像素，且A1、A2和A3组成第三像素单元。
由于所有R、G、B、W子像素均为边长相等的直角等腰三角形，中心子像素W位于中间，红色子像素R、绿色子像素G、蓝色子像素B分布在中心子像素W周围，中心子像素W的三条边均与R、G、B三种颜色子像素重合，构成第三像素单元的四个子像素构成一个新的等腰直角三角形，其中每个边长是任一子像素的边长的两倍。
需要说明的是，只要保证中心子像素W位于中间(即中心子像素W的三边分别与三个子像素的三边(包括直角边和斜边重合))，其余三个颜色的子像素的排布顺序不作具体限定。
在一个示例中，上述重复单元还包括：
第四像素单元，第四像素单元与第三像素单元中心对称，共同构成形状为正方形的重复单元，本实施例重复单元的像素结构示意图如图8所示。图8中A4、A5和A6为分别为R、G、B子像素，且A4、A5和A6组成第四像素单元。由于中间的中心子像素W的三边能同时与每个R、G、B子像素的一边重合，能够保证混色非常均匀，提升画面显示品质。
需要说明的是，一个重复单元中包括两个中心对称的第三像素单元和第四像素单元时，能够使得一个重复单元中红色子像素R的一边与中心子像素W相邻，另一边与另外一个像素单元中的绿色子像素G相邻，保证良好的混色效果。
由于蓝色子像素B的发光亮度低于红色子像素R和绿色子像素G，因此，中心子像素的斜边与蓝色子像素的斜边重合，中心子像素的两条直角边分别与红色子像素和绿色子像素的任意一条直角边重合，这样可以增大蓝色子像素B与白光的接触面积，可以提高亮度，如图9所示。
本示例可以实现与示例一相同的技术效果，此处不再赘述。需要说明的是，以上两个示例仅是R/G/B/W的结构来进行举例说明，其他的排布结构仍为本发明的保护范围，例如可以为R/G/B/Y。
本发明另一实施例还提供了一种显示基板，包括基板以及形成在基板上的像素结构，其中像素结构为以上任一实施例或示例中所述的像素结构。
需要说明的是，本实施例中的显示基板可以为彩膜基板或彩光OLED基板。
本发明再一实施例还提供了一种显示装置，包括以上的显示基板。显示装置可以为：电子纸、手机、平板电脑、电视机、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。
综上，基于本发明实施例提供的像素结构，改变现有像素单元中传统的子像素以矩形形状分布的排布结构，通过将子像素单元形状设计成三角形，使红绿蓝三色子像素围绕在中心子像素三边的周围，保证中心子像素与其余三色子像素均相邻，在提高亮度的同时，还能实现各色子像素颜色混合均匀，从而提高画面显示的品质。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范 围，本发明的保护范围由所附的权利要求确定。
本申请基于并且要求于2014年10月14日递交的中国专利申请第201410542180.6号的优先权，在此全文引用上述中国专利申请公开的内容。

Claims (11)

  1. 一种像素结构，包括多个重复单元，每个重复单元包括：
    形状均为三角形的红色子像素、绿色子像素、蓝色子像素以及中心子像素，所述中心子像素的颜色与红色子像素、绿色子像素、蓝色子像素均不相同，且所述中心子像素的三条边分别与红色子像素、绿色子像素、蓝色子像素的一条边重合。
  2. 根据权利要求1所述的像素结构，其中所述中心子像素的颜色为黄色或白色。
  3. 根据权利要求1所述的像素结构，其中所述红色子像素、所述绿色子像素、所述蓝色子像素以及所述中心子像素的形状均为等边三角形。
  4. 根据权利要求3所述的像素结构，其中每个重复单元包括第一像素单元，所述第一像素单元包括一个红色子像素、一个绿色子像素、一个蓝色子像素以及一个中心子像素。
  5. 根据权利要求4所述的像素结构，其中每个重复单元还包括：
    第二像素单元，所述第二像素单元与所述第一像素单元中心对称，共同构成形状为菱形的重复单元。
  6. 根据权利要求1所述的像素结构，其中所述红色子像素、所述绿色子像素、所述蓝色子像素以及所述中心子像素的形状均为等腰直角三角形。
  7. 根据权利要求6所述的像素结构，其中每个重复单元包括第三像素单元，所述第三组素单元包括一个红色子像素、一个绿色子像素、一个蓝色子像素以及一个中心子像素。
  8. 根据权利要求7所述的像素结构，其中每个重复单元还包括：
    第四像素单元，所述第四组像素单元与所述第三像素单元中心对称，共同构成形状为正方形的重复单元。
  9. 根据权利要求6-8中任一项所述的像素结构，其中所述中心子像素的斜边与所述蓝色子像素的斜边重合。
  10. 一种显示基板，包括基板以及形成在所述基板上的像素结构，所述像素结构为权利要求1-9中任一项所述的像素结构。
  11. 一种显示装置，包括权利要求10所述的显示基板。
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