WO2016033971A1 - 像素结构及显示装置 - Google Patents

像素结构及显示装置 Download PDF

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Publication number
WO2016033971A1
WO2016033971A1 PCT/CN2015/076553 CN2015076553W WO2016033971A1 WO 2016033971 A1 WO2016033971 A1 WO 2016033971A1 CN 2015076553 W CN2015076553 W CN 2015076553W WO 2016033971 A1 WO2016033971 A1 WO 2016033971A1
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Prior art keywords
pixel
sub
pixels
color
colors
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PCT/CN2015/076553
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English (en)
French (fr)
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王强涛
崔贤植
林允植
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京东方科技集团股份有限公司
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Priority to US14/768,664 priority Critical patent/US10198981B2/en
Priority to EP15790433.5A priority patent/EP3190458B1/en
Publication of WO2016033971A1 publication Critical patent/WO2016033971A1/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
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • 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
    • 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
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation

Definitions

  • Embodiments of the present invention relate to a pixel structure and a display device.
  • the flat panel display device includes a plurality of array-arranged pixels, and each pixel generally includes sub-pixels of three colors of red, green, and blue, and each sub-pixel is controlled by one gate line and one data line.
  • the gate line is used to control the turning on and off of the sub-pixel, and the data line displays different gray scales by applying different data voltage signals to the sub-pixels, thereby realizing display of the full-color picture.
  • An embodiment of the present invention provides a pixel structure, including: a plurality of pixel units arranged in an array, each of the pixel units including first to seventh sub-pixels arranged in a row direction, the first The colors of one sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel are different, and each of the first to third sub-pixels has a color respectively One of the fifth to seventh sub-pixels has the same color.
  • the first sub-pixel and the fifth sub-pixel have the same color
  • the second sub-pixel and the sixth sub-pixel have the same color
  • the third sub-pixel and the seventh The sub-pixels have the same color.
  • the color of the fourth sub-pixel is yellow, white, or cyan.
  • the colors of adjacent three fourth sub-pixels in the fourth sub-pixel located in the same column are different.
  • the fourth sub-pixels located in the same row are alternately arranged in yellow and cyan, or the colors of the fourth sub-pixels in the same row are all white.
  • adjacent fourth of the fourth sub-pixels of the fourth sub-pixel in the same row The colors are different.
  • the colors of the first sub-pixel, the second sub-pixel, and the third sub-pixel are different, respectively, one of red, green, and blue.
  • the pixel structure further includes: a plurality of data lines respectively connected to the fourth sub-pixel, the data lines being used to apply a data driving signal to the fourth sub-pixel.
  • Embodiments of the present invention also provide a display device including the pixel structure described above.
  • each pixel unit includes seven sub-pixels, that is, one pixel is added between every two pixels of the original pixel structure.
  • the color of the added sub-pixel is different from the color of the sub-pixels of the two pixels located on both sides thereof, so that the color of the pixel structure is changed from the original three to at least four,
  • the sub-pixels are shared by the pixels on both sides, and the color modulation can make the types of colors that can be expressed more diverse, and the color gamut of the display device is improved.
  • FIG. 1 is a diagram of a pixel arrangement of a pixel structure according to an embodiment of the present invention.
  • FIG. 2 is a comparison diagram of a color gamut that can be implemented by a pixel structure in the prior art according to an embodiment of the present invention
  • 3 is a graph showing light transmittance of different color sub-pixels as a function of wavelength
  • FIG. 4 is another pixel layout diagram of a pixel structure according to an embodiment of the present invention.
  • An embodiment of the present invention provides a pixel structure, as shown in FIG. 1 , including: array arrangement a plurality of pixel units 101 each including a first sub-pixel to a seventh sub-pixel arranged in a row direction, the first sub-pixel and the fifth sub-pixel having the same color, the second sub-pixel and the sixth
  • the colors of the sub-pixels are the same, the colors of the third sub-pixel and the seventh sub-pixel are the same, and the colors of the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel are different.
  • each of the pixels includes three sub-pixels of different colors.
  • a fourth sub-pixel of different colors is added between the two pixels on the basis of the original pixel structure.
  • a pixel unit 101 is formed, which is equivalent to making the two pixels located on both sides of each pixel unit 101 share the fourth sub-pixel located in the middle. Since the color of the fourth sub-pixel is different from the color of the regional sub-pixel in the pixel unit, when the color is displayed, the color modulation can be realized by adjusting the gray scale of the fourth sub-pixel and the peripheral sub-pixel thereof, thereby It can make the screen display more colors and improve the color gamut.
  • the color of the fourth sub-pixel in each pixel unit may be yellow, white or cyan, and the color of the fourth sub-pixel in different pixel units may be different.
  • the area enclosed by the dotted line in the figure indicates that the pixel structure of the prior art has only the color gamut that can be covered by the three colors of red (R), green (G), and blue (B).
  • the area surrounded by the solid line indicates that the pixel structure of the present embodiment includes color gamuts which can be covered by five colors of red (R), green (G), blue (B), cyan (C), and yellow (Y), which can be clearly obtained.
  • the pixel structure in the embodiment can represent a higher color gamut.
  • the pixel structure in this embodiment is more accurate in displaying yellow and cyan, and the reduction ability to yellow and cyan is improved.
  • the light transmittance of the pixel can be improved by setting a fourth sub-pixel having a color of yellow or white in the pixel structure.
  • the horizontal axis ⁇ is the wavelength of light
  • the vertical axis T is the light transmittance.
  • the curves of different line types indicate the light transmittance of sub-pixels of different colors as a function of wavelength, and can be obtained by comparing the curves.
  • the light transmittance of the white and yellow sub-pixels in the visible light band (400 nm to 800 nm) is greater than the light transmittance of the red, green, and blue sub-pixels. Therefore, the light transmittance of the pixel structure provided in this embodiment is greater than The prior art has higher picture display brightness.
  • the brightness of the screen display is generally improved by enhancing the brightness of the backlight module of the display device.
  • This method not only increases the power consumption, but also increases the brightness of the dark state of the screen, thereby reducing the contrast of the screen and affecting the image. Display quality.
  • the pixel light transmittance is increased by providing yellow and/or white sub-pixels in the pixel structure, thereby improving the brightness of the display screen without increasing power consumption and reducing contrast.
  • the color temperature of the display screen is determined by the spectrum of the pixel.
  • the human eye feels comfortable, and the color temperature is required to vary within a certain range, and varies depending on the region.
  • the color temperature that is comfortable for Europeans is 6500K
  • the color temperature that is comfortable for Asians is 9300K.
  • the cyan and yellow sub-pixels in this embodiment can adjust the color temperature and improve the comfort of the screen.
  • the display device for European consumers can reduce the color temperature by increasing the aperture ratio of the yellow sub-pixel; the display device for Asian consumers can increase the color temperature by increasing the aperture ratio of the cyan pixel. .
  • the colors of adjacent three fourth sub-pixels in the fourth sub-pixel of the same column are different (for example, a column of fourth sub-pixels may be cyclically arranged in the order of yellow, white, and cyan), thereby The fourth sub-pixels of different colors are closer than the fourth sub-pixels of the same color, that is, the distribution of the fourth sub-pixels of different colors on the screen is more uniform, thereby further improving the modulation of the color and improving the color of the display device. area.
  • the fourth sub-pixels located in the same row may be alternately arranged in yellow and cyan, or the fourth sub-pixels in the same row may be white, as shown in FIG.
  • the pixel structure is arranged by a plurality of repeating regions, each of which includes a plurality of pixel units 101, in the foregoing arrangement, each of the repeating regions includes three rows and two columns of pixel units 101, and FIG. 1 shows The arrangement of a repeating unit.
  • the colors of adjacent three fourth sub-pixels in the fourth sub-pixel located in the same row may be different (for example, the fourth sub-pixel of the same row may be cyclically arranged in the order of yellow, white, and cyan, such as shown in FIG. 4, each repeating region of the pixel structure at this time includes three rows and three columns of pixel units 101, and FIG. 4 shows the arrangement of one repeating region.
  • the colors of the first sub-pixel, the second sub-pixel, and the third sub-pixel are different, and are respectively one of red, green, and blue. Since the colors of the first sub-pixel and the fifth sub-pixel are the same, the colors of the second sub-pixel and the sixth sub-pixel are the same, and the colors of the third sub-pixel and the seventh sub-pixel are the same, so the fourth sub-pixel is excluded from one pixel unit.
  • the color arrangement order of the first, second, third, fifth, sixth, and seventh pixels may be: red, green, blue, blue, green, red, or red, blue, green, green, blue, red, or green. , red, blue, blue, red, green, or green, blue, red, red, red, blue, green, or blue, green, red, red, green, blue, or blue, red, green, red, blue, and many more.
  • the first sub-pixel and the fifth sub-pixel have the same color.
  • the second sub-pixel and the sixth sub-pixel have the same color, and the third sub-pixel and the seventh sub-pixel have the same color.
  • embodiments according to the invention are not limited thereto.
  • the color of each of the first to third sub-pixels may be the same as the color of one of the fifth to seventh sub-pixels, respectively.
  • the color arrangement order of the first, second, third, fifth, sixth, and seventh pixels may be: red, green, blue, green, blue, red, or red, blue, green, blue, green, red, or green. , red, blue, red, blue, green, or green, blue, red, blue, red, green, or blue, green, red, green, red, blue, or blue, red, green, red, green, blue, and many more. That is to say, in the row direction, the fourth sub-pixel is located at an intermediate position, and there are three sub-pixels of different colors on each side. The three colors on one side of the fourth sub-pixel are the same as the three colors on the other side of the fourth sub-pixel, but the order of color arrangement of the three sub-pixels on both sides may be different.
  • the pixel structure provided in this embodiment may further include: a plurality of data lines respectively connected to the fourth sub-pixel, wherein the data lines are used to apply a data driving signal to the fourth sub-pixel, so that the fourth sub-pixel performs the required The display of the grayscale. Since the pixel structure in this embodiment is equivalent to adding a fourth sub-pixel between every two pixels of the pixel structure in the prior art to form a plurality of pixel units having 7 sub-pixels, the pixel structure in the present embodiment The number of data lines required is one-sixth greater than the prior art.
  • the present embodiment further provides a display device including the above-described pixel structure, and the display device in the embodiment has the advantage of high color gamut. Further, by setting the color of the fourth sub-pixel in each pixel unit to yellow, cyan or white, the light transmittance of the yellow and white sub-pixels is higher than that of the red, green and blue sub-pixels, thereby Without increasing the power consumption and reducing the contrast of the picture, the light transmittance of the device is improved, and the brightness of the picture display is enhanced; and the yellow and cyan sub-pixels can be set to improve the yellow and cyan reduction ability of the device; The effect of adjusting the color temperature by adjusting the aperture ratio of the yellow or cyan sub-pixels for different regions of the consumer is also achieved, so that the screen displayed by the display device in the embodiment is more comfortable.
  • the display device in this embodiment may be a liquid crystal panel, an electronic paper or an OLED (Organic Light-Emitting Diode) panel, and can be applied to a mobile phone, a tablet computer, a television, a display, a notebook computer, A product or component with a display function such as a digital photo frame or a navigator.
  • OLED Organic Light-Emitting Diode

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Abstract

一种像素结构及显示装置，该像素结构包括：呈阵列式排布的多个像素单元（101），每个像素单元（101）包括沿行方向依次排列的第一子像素至第七子像素，第一子像素、第二子像素、第三子像素和第四子像素的颜色各不相同。第一至第三子像素中的每个子像素的颜色分别与第五至第七子像素中一个子像素的颜色相同。像素结构所具有的颜色由原来的三种变为至少四种，所增加的子像素被其两侧的像素共用，通过颜色的调制使所能够表现的颜色的种类更加丰富多样，提高了显示装置的色域。

Description

像素结构及显示装置 技术领域
本发明的实施例涉及一种像素结构及显示装置。
背景技术
平板显示装置中包括多个阵列式排布的像素，每个像素通常包括红、绿、蓝三种颜色的子像素，每个子像素均受控于一条栅极线与一条数据线。栅极线用于控制子像素的开启和关闭，数据线通过向子像素施加不同的数据电压信号，使子像素显示不同的灰阶，从而实现全彩画面的显示。
随着人们对物质文化的需求的日益增长，人们对显示装置的色彩还原性、画面色彩的丰富性等显示品质的追求越来越高，仅利用红色、绿色和蓝色三基色所能合成的颜色种类有限，画面色域较小。
发明内容
本发明实施例提供了一种像素结构，包括：呈阵列式排布的多个像素单元，每个所述像素单元包括沿行方向依次排列的第一子像素至第七子像素，所述第一子像素、所述第二子像素、所述第三子像素和所述第四子像素的颜色各不相同，所述第一至第三子像素中的每个子像素的颜色分别与所述第五至第七子像素中一个子像素的颜色相同。
在一些示例中，所述第一子像素和所述第五子像素的颜色相同，所述第二子像素和所述第六子像素的颜色相同，所述第三子像素和所述第七子像素的颜色相同。
在一些示例中，所述第四子像素的颜色为黄色、白色或青色。
在一些示例中，位于同一列的所述第四子像素中相邻三个第四子像素的颜色各不相同。
在一些示例中，位于同一行的所述第四子像素按照黄色和青色交替排列，或者位于同一行的所述第四子像素的颜色均为白色。
在一些示例中，位于同一行的所述第四子像素中相邻三个第四子像素的 颜色各不相同。
在一些示例中，所述第一子像素、所述第二子像素和所述第三子像素的颜色各不相同，分别为红色、绿色和蓝色中的一种颜色。
在一些示例中，所述像素结构还包括：分别与所述第四子像素相连的多条数据线，所述数据线用于向所述第四子像素施加数据驱动信号。
本发明的实施例还提供了一种显示装置，包括以上所述的像素结构。
本发明的实施例所提供的像素结构及显示装置中，包括多个阵列式排布的像素单元，每个像素单元包括七个子像素，即在原有的像素结构的每两个像素之间增加一子像素，所增加的子像素的颜色与位于其两侧的两个像素中的子像素的颜色均不相同，从而使像素结构所具有的颜色由原来的三种变为至少四种，所增加的子像素被其两侧的像素共用，通过颜色的调制使所能够表现的颜色的种类更加丰富多样，提高了显示装置的色域。
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为本发明实施例所提供的像素结构的一种像素排布图；
图2为本发明实施例与现有技术中的像素结构所能实现的色域的对比图；
图3为不同颜色子像素的光线透过率随波长变化的曲线图；
图4为本发明实施例所提供的像素结构的另一种像素排布图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，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。
本发明实施例提供了一种像素结构，如图1所示，包括：呈阵列式排布 的多个像素单元101，每个所述像素单元包括沿行方向依次排列的第一子像素至第七子像素，第一子像素和第五子像素的颜色相同，第二子像素和第六子像素的颜色相同，第三子像素和第七子像素的颜色相同，第一子像素、第二子像素、第三子像素和第四子像素的颜色各不相同。
现有技术中每个像素包括颜色不同的三个子像素，本实施例所提供的上述像素结构中，在原来的像素结构的基础上，在两个像素之间增设一不同颜色的第四子像素，构成一像素单元101，这相当于使每个像素单元101中位于两侧的两个像素共用位于中间的第四子像素。由于第四子像素的颜色与像素单元中区域子像素的颜色均不相同，因此在进行颜色的显示时，可通过调整第四子像素与其周边的子像素的灰阶，实现颜色的调制，从而能够使画面显示色彩更多样，提高了色域。
本实施例中，每个像素单元中的第四子像素的颜色可为黄色、白色或青色，不同像素单元中的第四子像素的颜色可不同。如图2所示，为在CIE1931坐标图，图中虚线所围区域表示现有技术的像素结构仅有红(R)、绿(G)、蓝(B)三色所能够涵盖的色域，实线所围区域表示本实施例的像素结构包括红(R)、绿(G)、蓝(B)、青(C)、黄(Y)五色所能够涵盖的色域，能够明显得到，本实施例中的像素结构所能够表现的色域更高。
由于增加了黄色和青色的子像素，因此本实施例中的像素结构对黄色和青色的展现更加精准，提高了对黄色和青色的还原能力。
通过在像素结构中设置颜色为黄色或白色的第四子像素可提高像素的光线透过率。如图3所示，横轴λ为光波长，纵轴T为光线透过率，不同线型的曲线表示不同颜色的子像素的光线透过率随波长的变化，对比各条曲线可以得到，在可见光波段(400nm～800nm)白色和黄色子像素的光线透过率是大于红色、绿色和蓝色子像素的光线透过率的，因此本实施例所提供的像素结构的光线透过率大于现有技术，具有更高的画面显示亮度。进一步的，现有技术中通常会通过增强显示装置背光模组的亮度来提高画面显示亮度，这种方式不仅会造成功耗的增加，还会增加画面暗态的亮度，从而降低画面对比度，影响显示品质。本实施例中通过在像素结构中设置黄色和/或白色子像素的方式增加像素光线透过率，从而实现了在不增加功耗、不降低对比度的前提下，提高显示画面的亮度。
显示画面的色温由像素的光谱决定，对于显示装置来说，使人眼感觉舒适，要求色温在一定范围内变动，且随地域不同而有所差异。例如：对欧洲人来说感觉比较舒适的色温是6500K，对亚洲人来说感觉比较舒适的色温是9300K。本实施例中的设置青色、黄色的子像素能够起到调节色温，提高画面舒适度的作用。具体的，在一定的背光强度下，对欧洲消费者的显示装置可通过增大黄色子像素的开口率，降低色温；对亚洲消费者的显示装置可通过增大青色像素的开口率，提高色温。
在一些示例中，位于同一列的第四子像素中相邻三个第四子像素的颜色各不相同(例如：一列第四子像素可按照黄、白、青的顺序循环排列)，从而使颜色不同的第四子像素比相同颜色的第四子像素的距离更近，即，使不同颜色的第四子像素在屏幕上的分布更均匀，进一步提高对颜色的调制，提高显示装置的色域。
在一些示例中，可使位于同一行的第四子像素按照黄色和青色交替排列，或者位于同一行的第四子像素的颜色均为白色，如图1所示。由于像素结构由多个重复区域排布而成，每个重复区域包括多个像素单元101，因此在前述排布情况下，每个重复区域包括三行两列像素单元101，图1示出了一个重复单元的排布情况。另外，还可使位于同一行的第四子像素中相邻三个第四子像素的颜色各不相同(例如：同一行的第四子像素可按照黄、白、青的顺序循环排列，如图4所示)，此时像素结构的每个重复区域包括三行三列像素单元101，图4示出了一个重复区域的排布情况。
需要说明的是，本实施例中第一子像素、第二子像素和第三子像素的颜色各不相同，分别为红色、绿色和蓝色中的一种颜色。由于第一子像素和第五子像素的颜色相同，第二子像素和第六子像素的颜色相同，第三子像素和第七子像素的颜色相同，因此一个像素单元中除第四子像素外，第一、二、三、五、六、七像素的颜色排布顺序可为：红、绿、蓝、蓝、绿、红，或红、蓝、绿、绿、蓝、红，或绿、红、蓝、蓝、红、绿，或绿、蓝、红、红、蓝、绿，或蓝、绿、红、红、绿、蓝，或蓝、红、绿、绿、红、蓝，等等。
需要说明的是，在上述根据图1和图4所示的像素排布图描述的实施例中，均是以以下情况为例进行了说明：第一子像素和第五子像素的颜色相同，第二子像素和第六子像素的颜色相同，第三子像素和第七子像素的颜色相同。 然而，根据本发明的实施例并不限制于此。在每个像素单元中，第一至第三子像素中的每个子像素的颜色分别与第五至第七子像素中一个子像素的颜色相同即可。例如，第一、二、三、五、六、七像素的颜色排布顺序可为：红、绿、蓝、绿、蓝、红，或红、蓝、绿、蓝、绿、红，或绿、红、蓝、红、蓝、绿，或绿、蓝、红、蓝、红、绿，或蓝、绿、红、绿、红、蓝，或蓝、红、绿、红、绿、蓝，等等。也就是说，在行方向上，第四子像素位于中间位置，其两侧各有三个不同颜色的子像素。位于第四子像素一侧的三种颜色与位于第四子像素另一侧的三种颜色相同，但两侧的三个子像素的颜色排布顺序可以不同。
本实施例所提供的像素结构，还可包括：分别与第四子像素相连的多条数据线，该些数据线用于向第四子像素施加数据驱动信号，以使第四子像素进行需要的灰阶的显示。由于本实施例中的像素结构相当于在现有技术中的像素结构的每两个像素之间增加一个第四子像素，形成多个具有7个子像素的像素单元，因此本实施中的像素结构所需要的数据线的数量相对于现有技术增加六分之一。
基于上述像素结构，本实施例还提供了一种显示装置，包括以上所述的像素结构，本实施例中的显示装置具有高色域的优点。进一步的，通过将每个像素单元中的第四子像素的颜色设置为黄色、青色或白色，黄色和白色的子像素的光线透过率高于红、绿、蓝颜色的子像素，从而在不增加功耗、不降低画面对比度的前提下，提高了装置的光线透过率，增强了画面显示亮度；并且，通过设置黄色和青色的子像素能够提高装置对黄色和青色的还原能力；此外，还实现了针对不同地域消费者通过调整黄色或青色子像素的开口率调整色温的效果，使本实施例中的显示装置所显示的画面给人感觉更舒适。
需要说明的是，本实施例中的显示装置可以为液晶面板、电子纸或OLED(Organic Light-Emitting Diode，有机发光二极管)面板，可以应用在手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等具有显示功能的产品或部件。
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。
本申请要求于2014年9月3日递交的中国专利申请第201410445915.3 号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (9)

  1. 一种像素结构，包括：呈阵列式排布的多个像素单元，每个所述像素单元包括沿行方向依次排列的第一子像素至第七子像素，所述第一子像素、所述第二子像素、所述第三子像素和所述第四子像素的颜色各不相同，所述第一至第三子像素中的每个子像素的颜色分别与所述第五至第七子像素中一个子像素的颜色相同。
  2. 根据权利要求1所述的像素结构，其中，所述第一子像素和所述第五子像素的颜色相同，所述第二子像素和所述第六子像素的颜色相同，所述第三子像素和所述第七子像素的颜色相同。
  3. 根据权利要求1或2所述的像素结构，其中，所述第四子像素的颜色为黄色、白色或青色。
  4. 根据权利要求3所述的像素结构，其中，位于同一列的所述第四子像素中相邻三个第四子像素的颜色各不相同。
  5. 根据权利要求4所述的像素结构，其中，位于同一行的所述第四子像素按照黄色和青色交替排列，或者位于同一行的所述第四子像素的颜色均为白色。
  6. 根据权利要求4所述的像素结构，其中，位于同一行的所述第四子像素中相邻三个第四子像素的颜色各不相同。
  7. 根据权利要求1～6任一项所述的像素结构，其中，所述第一子像素、所述第二子像素和所述第三子像素的颜色各不相同，分别为红色、绿色和蓝色中的一种颜色。
  8. 根据权利要求7所述的像素结构，还包括：分别与所述第四子像素相连的多条数据线，所述数据线用于向所述第四子像素施加数据驱动信号。
  9. 一种显示装置，包括权利要求1～8任一项所述的像素结构。
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