WO2017201789A1 - 石墨烯显示器以及石墨烯显示器的驱动方法、驱动装置 - Google Patents

石墨烯显示器以及石墨烯显示器的驱动方法、驱动装置 Download PDF

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WO2017201789A1
WO2017201789A1 PCT/CN2016/086813 CN2016086813W WO2017201789A1 WO 2017201789 A1 WO2017201789 A1 WO 2017201789A1 CN 2016086813 W CN2016086813 W CN 2016086813W WO 2017201789 A1 WO2017201789 A1 WO 2017201789A1
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pixel
color
color gamut
coordinate system
primary
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French (fr)
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樊勇
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3607—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 by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/81—Bodies
    • H10H20/822—Materials of the light-emitting regions
    • H10H20/823—Materials of the light-emitting regions comprising only Group II-VI materials, e.g. ZnO
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H29/00—Integrated devices, or assemblies of multiple devices, comprising at least one light-emitting semiconductor element covered by group H10H20/00
    • H10H29/10—Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00
    • H10H29/14—Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 comprising multiple light-emitting semiconductor components
    • H10H29/142—Two-dimensional arrangements, e.g. asymmetric LED layout
    • 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
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
    • 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 invention relates to the field of display technologies, and in particular, to a graphene display and a driving method and a driving device for a graphene display.
  • the technical problem to be solved by the present invention is to provide a graphene display and a driving method and a driving device for the graphene display, which can increase the color gamut of the display, thereby improving the display effect of the display and reducing the power consumption of the display.
  • one technical solution adopted by the present invention is to provide a graphene display, wherein the graphene display includes a display panel and a driving device electrically connected to the display panel, and the display panel includes a plurality of arrays of pixels.
  • Each of the pixels includes two dynamic sub-pixels and one fixed sub-pixel; wherein the driving device includes: an acquiring module, configured to acquire a three-primary grayscale value of the pixel to be input; and a determining module, configured to perform grayscale according to the three primary colors of the pixel Value and preset three primary color grayscale values and four The correspondence between the gray scale values of the base colors determines the color and gray scale values of the two dynamic subpixels and one fixed subpixel; the driving module is configured to apply two dynamic subpixels to the two dynamic subpixels and the fixed subpixel respectively The sub-pixel color and grayscale value correspond to the driving voltage.
  • the three primary colors are red, green, and blue, and the four primary colors are red, green, blue, and blue.
  • the determining module is further configured to: determine, according to the three primary color grayscale values of the pixels, a color gamut block in which the target color point of the pixel falls in the color gamut coordinate system; wherein the color gamut coordinate system includes three corresponding four primary colors respectively a gamut block; and determining color and grayscale values for the two dynamic subpixels and the fixed subpixel based on the gamut block into which the target color point falls.
  • the driving device further includes a color gamut coordinate establishing module, configured to establish a color gamut coordinate system of four primary colors; and divide the color gamut coordinate system into three color gamut blocks: WGRB, WGC, and WCB.
  • a color gamut coordinate establishing module configured to establish a color gamut coordinate system of four primary colors; and divide the color gamut coordinate system into three color gamut blocks: WGRB, WGC, and WCB.
  • each pixel of the graphene display includes two dynamic sub-pixels and one fixed sub-pixel
  • the method includes : obtaining the three primary color grayscale values of the pixels to be input; according to the pixels
  • the relationship between the three primary color grayscale values and the preset three primary color grayscale values and the four primary color grayscale values determines the color and grayscale values of the two dynamic subpixels and the fixed subpixels; to the two dynamic subpixels and the fixed substate
  • the pixels respectively apply driving voltages corresponding to the color and grayscale values of the two dynamic sub-pixels and the fixed sub-pixel.
  • the three primary colors are red, green, and blue, and the four primary colors are red, green, blue, and blue.
  • the color and grayscale values of the two dynamic sub-pixels and the fixed sub-pixels are determined according to the three-primary grayscale value of the pixel and the correspondence between the preset three-primary grayscale value and the four-primary grayscale value, including: according to the pixel a gray level value of the three primary colors, determining a color gamut block in which the target color point of the pixel falls in the color gamut coordinate system; wherein the color gamut coordinate system includes three color gamut blocks corresponding to the four primary colors respectively; falling according to the target color point
  • the gamut block determines the color and grayscale values of the two dynamic subpixels and the fixed subpixel.
  • the method further includes: establishing a gamut coordinate system of four primary colors; dividing the gamut coordinate system into three gamut blocks of WGRB, WGC, and WCB.
  • a driving device for a graphene display comprising: an acquiring module for acquiring three pixels to be input a gray level value of the base color; a determining module, configured to determine colors of the two dynamic sub-pixels and one fixed sub-pixel according to the three-primary gray scale value of the pixel and the correspondence between the preset three-primary gray scale value and the four-primary gray scale value And a grayscale value; a driving module, configured to apply a driving voltage corresponding to the color and grayscale values of the two dynamic subpixels and the fixed subpixel to the two dynamic subpixels and the fixed subpixel, respectively.
  • the three primary colors are red, green, and blue, and the four primary colors are red, green, blue, and blue.
  • the determining module is further configured to: determine, according to the three primary color grayscale values of the pixels, a color gamut block in which the target color point of the pixel falls in the color gamut coordinate system; wherein the color gamut coordinate system includes three corresponding four primary colors respectively a gamut block; and determining color and grayscale values for the two dynamic subpixels and the fixed subpixel based on the gamut block into which the target color point falls.
  • the driving device further includes a color gamut coordinate establishing module, configured to establish a color gamut coordinate system of four primary colors; and divide the color gamut coordinate system into three color gamut blocks: WGRB, WGC, and WCB.
  • a color gamut coordinate establishing module configured to establish a color gamut coordinate system of four primary colors; and divide the color gamut coordinate system into three color gamut blocks: WGRB, WGC, and WCB.
  • the driving method of the graphene display of the present invention comprises: acquiring three primary color grayscale values of pixels to be input; and according to the three primary color grayscale values of the pixels And a preset correspondence between the three primary color grayscale values and the four primary color grayscale values, determining color and grayscale values of the two dynamic subpixels and the fixed subpixel; respectively applying two dynamic subpixels and fixed subpixels The driving voltage of the dynamic sub-pixel and the fixed sub-pixel color and grayscale value.
  • the color gamut display of the graphene display not only 142% of the gamut display of the graphene display can be realized, but also far exceeds the color gamut that can be realized by any display, and the color gamut can completely cover the gamut range of the existing real object, and can realize High color fidelity greatly improves the display quality of the display; in addition, the increase in color gamut can increase the aperture ratio of the display, thereby reducing the power consumption of the display.
  • FIG. 1 is a schematic structural view of an embodiment of a graphene display of the present invention.
  • FIG. 2 is a schematic structural view of a display panel 11 in an embodiment of a graphene display of the present invention
  • FIG. 3 is a flow chart of an embodiment of a driving method of a graphene display of the present invention.
  • FIG. 4 is a schematic view showing a color gamut coordinate system in an embodiment of a driving method of a graphene display of the present invention
  • FIG. 5 is a schematic flow chart of a specific embodiment of S32 in an embodiment of a driving method of a graphene display according to the present invention
  • Fig. 6 is a schematic view showing the structure of an embodiment of a driving device for a graphene display of the present invention.
  • FIG. 1 is a schematic structural view of an embodiment of a graphene display of the present invention.
  • the graphene display 10 includes a display panel 11 and a driving device 12 electrically connected to the display panel 11.
  • the display panel 11 includes a lower substrate 111, an upper substrate 112, and an array of light emitting devices 113 disposed between the lower substrate 111 and the upper substrate 112.
  • the light emitting device 113 is used under the action of the driving device 12. Light is emitted to cause the graphene display 10 to be displayed.
  • the light emitting device 113 includes a source 1131 and a drain 1132 disposed on the lower substrate 111.
  • the source 1131 and the drain 1132 are separated by a channel, and the source 1131, the drain 1132, and the channel are covered with a channel.
  • a light-emitting layer 1133 is formed with a gate electrode 1134 formed on the light-emitting layer 1133.
  • the source 1131 and the drain 1132 are reduced graphene oxide
  • the light-emitting layer 1133 is a semi-reduced graphene oxide
  • the gate 1134 is a graphene oxide.
  • the material of the lower substrate 111 is at least one of a water-blocking transparent organic material (PET), glass, and nickel
  • the material of the upper substrate 112 is at least one of a water-blocking oxygen-containing organic material (PET) or glass.
  • the display panel 11 further includes a protective layer 114 overlying the light emitting device 113 and a black matrix layer 115 disposed on the protective layer 114.
  • the display panel 11 further includes a reflective layer 116 disposed on a side of the lower substrate 111 away from the light emitting device 113.
  • the reflective layer 116 may be a high reflectivity metal reflective layer.
  • one light emitting device 113 forms one sub-pixel, and three light emitting devices 113 are formed to form one pixel.
  • the three sub-pixels include two dynamic sub-pixels and one fixed sub-pixel.
  • the fixed sub-pixel can fixedly display one color in RGB
  • the dynamic sub-pixel can display any one of the RGBC according to requirements.
  • the gate voltage is different, different colors of light are emitted, for example, when the gate voltage is 0 to 10 V, the source-drain voltage Vds > the turn-on voltage Vth, at this time, The dynamic sub-pixel emits red light; when the gate voltage is 20-30V, the source-drain voltage Vds> turns on the voltage Vth, at this time, the dynamic sub-pixel emits green light; when the gate voltage is 40-50V, the source-drain voltage Vds> turns on the voltage Vth, at which point the dynamic sub-pixel emits blue light. Therefore, it is possible to change the color displayed by the graphene display by changing the magnitude of the driving voltage, that is, to adjust the gray scale.
  • the specific structure of the driving device 12 and the method of driving can be referred to the following embodiments.
  • FIG. 3 is a flowchart of an embodiment of a driving method of a graphene display according to the present invention.
  • the driving method includes:
  • S31 Acquire a three-primary grayscale value of the pixel to be input.
  • the three primary colors may be three colors of red, green, and blue, that is, RGB generally referred to, and in other embodiments, other colors, such as red, green, and yellow.
  • the grayscale value of the three primary colors may be extracted by receiving the image signal, or may be obtained by scanning, photographing, etc., and the grayscale value is usually 256 values of 0-255, and RGB is taken as an example, and may be R.
  • the value is 122, the G value is 156, and the B value is 225.
  • the grayscale value may also be replaced by a grayscale value, that is, a ratio of the grayscale value to the maximum grayscale value of 255.
  • S32 Determine color and grayscale values of the two dynamic sub-pixels and the fixed sub-pixel according to the three-primary grayscale value of the pixel and the correspondence between the preset three-primary grayscale value and the four-primary grayscale value.
  • the four primary colors are red, green, blue, and cyan.
  • one pixel since one pixel includes two dynamic sub-pixels and one fixed sub-pixel, one pixel still displays only three colors or three colors combined colors, so two dynamic sub-pixels are required in addition to the fixed sub-pixels. Two colors are selected in the four primary colors to be displayed in the two dynamic sub-pixels, and the specific selection manner and the pixel value may be according to the correspondence between the preset three primary color grayscale values and the four primary color grayscale values.
  • the two dynamic subpixels and one fixed pixel still display three colors of red, green, and blue; when the three primary colors are red, green.
  • the grayscale value of the blue satisfies the preset second condition
  • the two dynamic sub-pixels and one fixed pixel display red, green, and yellow colors, wherein the yellow grayscale value may be based on the red, green, and blue grays in the three primary colors.
  • the order value is calculated. In this way, it is possible to display the gray scale values of the three primary colors and use the four primary colors to greatly increase the color gamut.
  • S32 includes:
  • S321 Determine, according to the three primary color grayscale values of the pixels, a color gamut block in which the target color point of the pixel falls in the color gamut coordinate system; wherein the color gamut coordinate system includes three color gamut blocks corresponding to the four primary colors respectively.
  • a gamut coordinate system of four primary colors is established, and the gamut coordinate system is divided into three color gamut blocks: WGRB, WGC, and WCB.
  • a uniform color coordinate system such as a CIE 1976 color coordinate of a uniform color space, is used in the embodiment, which is not limited herein.
  • the dotted line indicates the color gamut range of Pointer's gamut.
  • the target color of the pixel in the color gamut coordinate system may be calculated by using gray scale values of the three primary colors.
  • the coordinates of the point which can be calculated by the algorithm in the prior art in the three primary color gamut coordinate system, and will not be described again here.
  • S322 Determine color and grayscale values of the three dynamic sub-pixels according to the color gamut block in which the target color point falls.
  • an optional implementation manner of the S32 may be performed by using the process in FIG. 5, and the implementation principle is similar to the foregoing implementation manner, and details are not described herein again.
  • S33 Apply a driving voltage corresponding to the color and grayscale values of the two dynamic sub-pixels and the fixed sub-pixel to the two dynamic sub-pixels and the fixed sub-pixel, respectively.
  • the driving method of the graphene display of the embodiment includes: acquiring three primary color grayscale values of pixels to be input; according to the three primary color grayscale values of the pixels and the preset three primary color grayscale values and four primary colors. Corresponding relationship of grayscale values, determining color and grayscale values of two dynamic subpixels and fixed subpixels; applying color and gray to two dynamic subpixels and fixed subpixels respectively to two dynamic subpixels and fixed subpixels The corresponding drive voltage of the order value.
  • the color gamut display of the graphene display not only 142% of the gamut display of the graphene display can be realized, but also far exceeds the color gamut that can be realized by any display, and the color gamut can completely cover the gamut range of the existing real object, and can realize High color fidelity greatly improves the display quality of the display; in addition, the increase in color gamut can increase the aperture ratio of the display, thereby reducing the power consumption of the display.
  • FIG. 6 is a schematic structural diagram of an embodiment of a driving device for a graphene display according to the present invention.
  • the driving device 60 includes:
  • the obtaining module 61 is configured to obtain a three-primary grayscale value of the pixel to be input.
  • the determining module 62 is configured to determine color and grayscale values of the two dynamic sub-pixels and one fixed sub-pixel according to the three-primary grayscale value of the pixel and the correspondence between the preset three-primary grayscale value and the four-primary grayscale value. . as well as
  • the driving module 63 is configured to respectively apply driving voltages corresponding to color and grayscale values of the two dynamic sub-pixels and the fixed sub-pixels to the two dynamic sub-pixels and the fixed sub-pixel.
  • the three primary colors are red, green, and blue, and the four primary colors are red, green, blue, and blue.
  • the determining module 62 is further configured to: determine, according to the three primary color grayscale values of the pixels, a color gamut block in which the target color point of the pixel falls in the color gamut coordinate system; wherein the color gamut coordinate system includes four primary colors respectively corresponding to The three color gamut blocks; and the color and grayscale values of the two dynamic subpixels and the fixed subpixels are determined according to the color gamut blocks into which the target color point falls.
  • the determining module 62 is further configured to:
  • the driving device of the present embodiment is based on an implementation manner of the foregoing driving method, and the implementation principles and steps are similar, and details are not described herein again.

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Abstract

一种石墨烯显示器（10）以及石墨烯显示器（10）的驱动方法、驱动装置（12）。石墨烯显示器（10）的驱动方法包括：获取待输入的像素的三基色灰阶值（S31）；根据像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和一个固定亚像素的颜色和灰阶值（S32）；向两个动态亚像素和一个固定亚像素分别施加与两个动态亚像素和一个固定亚像素的颜色和灰阶值相应的驱动电压（S33）。石墨烯显示器（10）的驱动方法能够增加显示器的色域，提高显示器的显示效果，并降低显示器的功耗。

Description

石墨烯显示器以及石墨烯显示器的驱动方法、驱动装置 【技术领域】
本发明涉及显示技术领域，特别是涉及一种石墨烯显示器以及石墨烯显示器的驱动方法、驱动装置。
【背景技术】
伴随着液晶显示器的普及以及市场的不断扩大，在众多选择中，用户对液晶显示装置性能的要求也越来越高，传统的显示器，即使是高色饱的RGB三基色显示器甚至是RGBY四基色显示器都已经不能满足用户对显示器色域覆盖的要求。
近年来由于石墨烯发光元件的出现，使石墨烯在显示领域的应用得以扩扩展。石墨烯具有质地坚硬，透明高(穿透率≈97.7％)，导热系数高(达5300W/m·K)，电子迁移率高(超过15000cm2/V·s)等优良特定，近年来在显示器上的应用，逐渐增多，尤其是在触摸屏的应用(作为替代传统透明导电薄膜ITO)和在LED方面的应用。通过理论计算，石墨烯的色域可以达到158％，然而现有技术中，并不存在如何实现该高色域覆盖的方法。
【发明内容】
本发明主要解决的技术问题是提供一种石墨烯显示器以及石墨烯显示器的驱动方法、驱动装置，能够增加显示器的色域，以提高显示器的显示效果，并降低显示器的功耗。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种石墨烯显示器，其中，石墨烯显示器包括显示面板以及与显示面板电连接的驱动装置，显示面板包括多个阵列分布的像素，每个像素包括两个动态亚像素和一个固定亚像素；其中，驱动装置包括：获取模块，用于获取待输入的像素的三基色灰阶值；确定模块，用于根据像素的三基色灰阶值以及预设的三基色灰阶值和四 基色灰阶值的对应关系，确定两个动态亚像素和一个固定亚像素的颜色和灰阶值；驱动模块，用于向两个动态亚像素和固定亚像素分别施加与两个动态亚像素和固定亚像素的颜色和灰阶值相应的驱动电压。
其中，三基色为红、绿、蓝，四基色为红、绿、蓝、青。
其中，确定模块还用于：根据像素的三基色灰阶值，确定像素在色域坐标系中的目标色点落入的色域块；其中，色域坐标系包括四基色分别对应的三个色域块；以及根据目标色点落入的色域块，确定两个动态亚像素和固定亚像素的颜色和灰阶值。
其中，确定模块还用于：由像素的红、绿、蓝的灰阶值Ri、Gi、Bi，计算得到其中的最大值a＝max(Ri，Gi，Bi)以及最小值b＝min(Ri，Gi，Bi)；若b≠Gi且a≠b，确定像素在色域坐标系中的目标色点落入WGRB色域块；若b＝Ri或a＝b，且a＝Gi，确定像素在色域坐标系中的目标色点落入WGC色域块；若b＝Ri或a＝b，且a≠Gi，确定像素在色域坐标系中的目标色点落入WCB色域块。
其中，确定模块还用于：在像素在色域坐标系中的目标色点落入WGRB色域块时，确定固定亚像素和两个动态亚像素的灰阶值为：Rgi＝Ri，Ggi＝Gi，Bgi＝Bi；在若像素在色域坐标系中的目标色点落入WGC色域块时，确定固定亚像素和两个动态亚像素的灰阶值为：Rgi＝Ri，
Figure PCTCN2016086813-appb-000001
Cgi＝Bi；在若像素在色域坐标系中的目标色点落入WCB色域块时，确定固定亚像素和两个动态亚像素的灰阶值为：Rgi＝Bi，Cgi＝Gi，
Figure PCTCN2016086813-appb-000002
其中，Rgi、Ggi、Bgi、Cgi分别为四基色中红、绿、蓝、青的灰阶值，γ为预设的伽马值。
其中，驱动装置还包括色域坐标建立模块，用于建立四基色的色域坐标系；将色域坐标系划分为WGRB、WGC、WCB三个色域块。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种石墨烯显示器的驱动方法，其中，石墨烯显示器的每个像素包括两个动态亚像素和一个固定亚像素，该方法包括：获取待输入的像素的三基色灰阶值；根据像素的 三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和固定亚像素的颜色和灰阶值；向两个动态亚像素和固定亚像素分别施加与两个动态亚像素和固定亚像素的颜色和灰阶值相应的驱动电压。
其中，三基色为红、绿、蓝，四基色为红、绿、蓝、青。
其中，根据像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和固定亚像素的颜色和灰阶值，包括：根据像素的三基色灰阶值，确定像素在色域坐标系中的目标色点落入的色域块；其中，色域坐标系包括四基色分别对应的三个色域块；根据目标色点落入的色域块，确定两个动态亚像素和固定亚像素的颜色和灰阶值。
其中，根据像素的三基色灰阶值，确定像素在色域坐标系中的目标色点落入的色域块，包括：由像素的红、绿、蓝的灰阶值Ri、Gi、Bi，计算得到其中的最大值a＝max(Ri，Gi，Bi)以及最小值b＝min(Ri，Gi，Bi)；若b≠Gi且a≠b，确定像素在色域坐标系中的目标色点落入WGRB色域块；若b＝Ri或a＝b，且a＝Gi，确定像素在色域坐标系中的目标色点落入WGC色域块；若b＝Ri或a＝b，且a≠Gi，确定像素在色域坐标系中的目标色点落入WCB色域块。
其中，根据目标色点落入的色域块，确定两个动态亚像素和固定亚像素的颜色和灰阶值，包括：若像素在色域坐标系中的目标色点落入WGRB色域块，则Rgi＝Ri，Ggi＝Gi，Bgi＝Bi；若像素在色域坐标系中的目标色点落入WGC色域块，则Rgi＝Ri，
Figure PCTCN2016086813-appb-000003
Cgi＝Bi；若像素在色域坐标系中的目标色点落入WCB色域块，则Rgi＝Bi，Cgi＝Gi，
Figure PCTCN2016086813-appb-000004
其中，Rgi、Ggi、Bgi、Cgi分别为四基色中红、绿、蓝、青的灰阶值，γ为预设的伽马值。
其中，方法还包括：建立四基色的色域坐标系；将色域坐标系划分为WGRB、WGC、WCB三个色域块。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种石墨烯显示器的驱动装置，该驱动装置包括：获取模块，用于获取待输入的像素的三 基色灰阶值；确定模块，用于根据像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和一个固定亚像素的颜色和灰阶值；驱动模块，用于向两个动态亚像素和固定亚像素分别施加与两个动态亚像素和固定亚像素的颜色和灰阶值相应的驱动电压。
其中，三基色为红、绿、蓝，四基色为红、绿、蓝、青。
其中，确定模块还用于：根据像素的三基色灰阶值，确定像素在色域坐标系中的目标色点落入的色域块；其中，色域坐标系包括四基色分别对应的三个色域块；以及根据目标色点落入的色域块，确定两个动态亚像素和固定亚像素的颜色和灰阶值。
其中，确定模块还用于：由像素的红、绿、蓝的灰阶值Ri、Gi、Bi，计算得到其中的最大值a＝max(Ri，Gi，Bi)以及最小值b＝min(Ri，Gi，Bi)；若b≠Gi且a≠b，确定像素在色域坐标系中的目标色点落入WGRB色域块；若b＝Ri或a＝b，且a＝Gi，确定像素在色域坐标系中的目标色点落入WGC色域块；若b＝Ri或a＝b，且a≠Gi，确定像素在色域坐标系中的目标色点落入WCB色域块。
其中，确定模块还用于：在像素在色域坐标系中的目标色点落入WGRB色域块时，确定固定亚像素和两个动态亚像素的灰阶值为：Rgi＝Ri，Ggi＝Gi，Bgi＝Bi；在若像素在色域坐标系中的目标色点落入WGC色域块时，确定固定亚像素和两个动态亚像素的灰阶值为：Rgi＝Ri，
Figure PCTCN2016086813-appb-000005
Cgi＝Bi；在若像素在色域坐标系中的目标色点落入WCB色域块时，确定固定亚像素和两个动态亚像素的灰阶值为：Rgi＝Bi，Cgi＝Gi，
Figure PCTCN2016086813-appb-000006
其中，Rgi、Ggi、Bgi、Cgi分别为四基色中红、绿、蓝、青的灰阶值，γ为预设的伽马值。
其中，驱动装置还包括色域坐标建立模块，用于建立四基色的色域坐标系；将色域坐标系划分为WGRB、WGC、WCB三个色域块。
本发明的有益效果是：区别于现有技术的情况，本发明的石墨烯显示器的驱动方法包括：获取待输入的像素的三基色灰阶值；根据像素的三基色灰阶值 以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和固定亚像素的颜色和灰阶值；向两个动态亚像素和固定亚像素分别施加与两个动态亚像素和固定亚像素的颜色和灰阶值相应的驱动电压。通过上述实施方式，不仅能够实现石墨烯显示器的142％以上的色域显示，远超过任何显示器所能实现的色域，且其色域能够完全覆盖现有真实物体的色域范围，而且能够实现色彩高保真度，极大的提升了显示器的显示品质；另外，由于色域的增加可以提高显示器的开口率，从而减小显示器的功耗。
【附图说明】
图1是本发明石墨烯显示器一实施方式的结构示意图；
图2是本发明石墨烯显示器一实施方式中显示面板11的结构示意图；
图3是本发明石墨烯显示器的驱动方法一实施方式的流程图；
图4是本发明石墨烯显示器的驱动方法一实施方式中色域坐标系的示意图；
图5是本发明石墨烯显示器的驱动方法一实施方式中S32一具体实施例的流程示意图；
图6是本发明石墨烯显示器的驱动装置一实施方式的结构示意图。
【具体实施方式】
参阅图1，图1是本发明石墨烯显示器一实施方式的结构示意图，该石墨烯显示器10包括显示面板11以及与显示面板11电连接的驱动装置12。
其中，参阅图2，该显示面板11包括下基板111、上基板112以及设置于下基板111和上基板112之间的阵列分布的发光器件113，发光器件113用于在驱动装置12的作用下发光以使该石墨烯显示器10显示。
发光器件113包括设置在该下基板111上的源极1131和漏极1132，源极1131和漏极1132之间以一沟道隔开，且该源极1131、漏极1132以及沟道上覆盖有发光层1133，发光层1133上形成有栅极1134。
具体地，源极1131和漏极1132为还原氧化石墨烯(reduced graphene oxide)，发光层1133为半导体还原氧化石墨烯(semi-reduced graphene oxide)，栅极1134为氧化石墨烯(graphene oxide)。下基板111的材质为隔水隔氧透明有机材质(PET)、玻璃以及镍中的至少一种，上基板112的材质为隔水隔氧有机材质(PET)或玻璃中的至少一种。
可选的，该显示面板11还包括覆盖在发光器件113上的保护层114以及设置在该保护层114上的黑色矩阵层115。
可选的，该显示面板11还包括设置在下基板111远离发光器件113一侧的反射层116。其中，反射层116可以是高反射率的金属反射层。
可以理解的，一个发光器件113形成一个亚像素，三个发光器件113形成形成一个像素。其中，该三个亚像素中，包括两个动态亚像素和一个固定亚像素。
可选的，固定亚像素可以固定显示RGB中的一种颜色，而动态亚像素则根据需求可以显示RGBC中的任意一种颜色。
由于对于石墨烯显示器中的一个动态亚像素而言，栅极电压的不同，会发出不同颜色的光，例如当栅极电压为0～10V，源漏电压Vds＞开启电压Vth，此时，该动态亚像素会发出红光；当栅极电压为20～30V，源漏电压Vds＞开启电压Vth，此时，该动态亚像素会发出绿光；当栅极电压为40～50V，源漏电压Vds＞开启电压Vth，此时，该动态亚像素会发出蓝光。因此，可以通过改变驱动电压的大小来改变石墨烯显示器显示的颜色，即调节灰阶。
具体地，驱动装置12的具体结构和驱动的方法可以参考以下的实施方式。
参阅图3，图3是本发明石墨烯显示器的驱动方法一实施方式的流程图，该驱动方法包括：
S31：获取待输入的像素的三基色灰阶值。
其中，三基色可以是红、绿、蓝三种颜色，即通常所指的RGB，在其他实施方式中，也可以是其他颜色，例如红、绿、黄。
具体地，三基色的灰阶值是可以通过接收图像信号中提取，也可以是通过扫描、拍摄等方式获取，灰阶值通常为0-255共256个值，以RGB为例，可以是R值为122，G值为156，B值为225。当然，在其他实施方式中，灰阶值也可以替换为灰度值，即灰阶值与最大灰阶值255的比值。
S32：根据像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和固定亚像素的颜色和灰阶值。
其中，在一种实施方式中，四基色为红、绿、蓝、青。
具体地，由于一个像素包括两个动态亚像素和一个固定亚像素，因此，一个像素仍然仅显示三种颜色或三种颜色合成的颜色，因此，除固定亚像素外，两个动态亚像素需要在四基色中选择两种颜色以在两个动态亚像素中显示，具体的选择方式和像素值则可以根据该预设的三基色灰阶值和四基色灰阶值的对应关系。
例如，当三基色中红、绿、蓝的灰阶值满足预设第一条件时，两个动态亚像素和一个固定像素仍然显示红、绿、蓝三色；当三基色中红、绿、蓝的灰阶值满足预设第二条件时，两个动态亚像素和一个固定像素则显示红、绿、黄三色，其中黄色的灰阶值可以根据三基色中红、绿、蓝的灰阶值来计算。这样，就可以通过三基色的灰阶值，并运用四基色来显示，大大的增加了色域。
下面，就S32，以一具体的实施方式来说明：
在另一实施方式中，S32包括：
S321：根据像素的三基色灰阶值，确定像素在色域坐标系中的目标色点落入的色域块；其中，色域坐标系包括四基色分别对应的三个色域块。
如图4所示，建立四基色的色域坐标系，将色域坐标系划分为WGRB、WGC、WCB三个色域块。可选地，为了使各个色域块以及整个色域区域的颜色过渡的更加平滑，本实施方式中采用均匀色坐标系，如均匀色空间的CIE1976色坐标等，在此不做限定。其中，虚线表示真实物体色(Pointer’s gamut)的色域范围。
具体地，可以先通过三基色的灰阶值计算出像素在色域坐标系中的目标色 点的坐标，该坐标可以通过现有技术中在三基色色域坐标系中的算法来计算，这里不再赘述。
可选的，下面介绍一种通过待输入的RGB值，来判断像素在色域坐标系中的目标色点落入色域块的方法：
由待输入的像素的红、绿、蓝的灰阶值Ri、Gi、Bi，计算得到其中的最大值a＝max(Ri，Gi，Bi)以及最小值b＝min(Ri，Gi，Bi)。
若b≠Gi且a≠b，确定像素在色域坐标系中的目标色点落入WGRB色域块；若b＝Ri或a＝b，且a＝Gi，确定像素在色域坐标系中的目标色点落入WGC色域块；若b＝Ri或a＝b，且a≠Gi，确定像素在色域坐标系中的目标色点落入WCB色域块。
S322：根据目标色点落入的色域块，确定三个动态亚像素的颜色和灰阶值。
可选的，若像素在色域坐标系中的目标色点落入WGRB色域块，则Rgi＝Ri，Ggi＝Gi，Bgi＝Bi；若像素在色域坐标系中的目标色点落入WGC色域块，则Rgi＝Ri，
Figure PCTCN2016086813-appb-000007
Cgi＝Bi；若像素在色域坐标系中的目标色点落入WCB色域块，则Rgi＝Bi，Cgi＝Gi，
Figure PCTCN2016086813-appb-000008
其中，Rgi、Ggi、Bgi、Cgi分别为四基色中红、绿、蓝、青的灰阶值，γ为预设的伽马值。
可选的，S32的一可选实施方式还可以采用如图5的流程来进行，其实施原理和上述实施方式类似，这里不再赘述。
S33：向两个动态亚像素和固定亚像素分别施加与两个动态亚像素和固定亚像素的颜色和灰阶值相应的驱动电压。
下面以一具体的例子，对本实施方式进行详细说明：
假设待输入的像素的红、绿、蓝的灰阶值Ri＝89、Gi＝188、Bi＝117，计算得到其中的最大值a＝188，最小值b＝89。
其中，通过上述方式可以得到，若b＝Ri且a＝Gi，则可以确定像素在色域坐标系中的目标色点落入WGC色域块，取γ值为2.2，则Rgi＝Ri＝89，
Figure PCTCN2016086813-appb-000009
(该计算结果为近似值)，Cgi＝Bi＝117。即三个动态亚像素分别显示红、绿、青三色，且红色的灰阶值为89，绿色的灰阶值为153，青色的灰阶值为117。
区别于现有技术，本实施方式的石墨烯显示器的驱动方法包括：获取待输入的像素的三基色灰阶值；根据像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和固定亚像素的颜色和灰阶值；向两个动态亚像素和固定亚像素分别施加与两个动态亚像素和固定亚像素的颜色和灰阶值相应的驱动电压。通过上述实施方式，不仅能够实现石墨烯显示器的142％以上的色域显示，远超过任何显示器所能实现的色域，且其色域能够完全覆盖现有真实物体的色域范围，而且能够实现色彩高保真度，极大的提升了显示器的显示品质；另外，由于色域的增加可以提高显示器的开口率，从而减小显示器的功耗。
参阅图6，图6是本发明石墨烯显示器的驱动装置一实施方式的结构示意图，该驱动装置60包括：
获取模块61，用于获取待输入的像素的三基色灰阶值。
确定模块62，用于根据像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和一个固定亚像素的颜色和灰阶值。以及
驱动模块63，用于向两个动态亚像素和固定亚像素分别施加与两个动态亚像素和固定亚像素的颜色和灰阶值相应的驱动电压。
其中，三基色为红、绿、蓝，四基色为红、绿、蓝、青。
可选的，确定模块62还用于：根据像素的三基色灰阶值，确定像素在色域坐标系中的目标色点落入的色域块；其中，色域坐标系包括四基色分别对应的三个色域块；以及根据目标色点落入的色域块，确定两个动态亚像素和固定亚像素的颜色和灰阶值。
可选的，确定模块62还用于：
由待输入的像素的红、绿、蓝的灰阶值Ri、Gi、Bi，计算得到其中的最大值a＝max(Ri，Gi，Bi)以及最小值b＝min(Ri，Gi，Bi)。若b≠Gi且a≠b，确定像素在色域坐标系中的目标色点落入WGRB色域块；若b＝Ri或a＝b，且a＝Gi，确定像素在色域坐标系中的目标色点落入WGC色域块；若b＝Ri或a＝b，且a≠Gi，确定像素在色域坐标系中的目标色点落入WCB色域块。
可选的，确定模块62还用于：若像素在色域坐标系中的目标色点落入WGRB色域块，则Rgi＝Ri，Ggi＝Gi，Bgi＝Bi；若像素在色域坐标系中的目标色点落入WGC色域块，则Rgi＝Ri，
Figure PCTCN2016086813-appb-000010
Cgi＝Bi；若像素在色域坐标系中的目标色点落入WCB色域块，则Rgi＝Bi，Cgi＝Gi，
Figure PCTCN2016086813-appb-000011
Figure PCTCN2016086813-appb-000012
其中，Rgi、Ggi、Bgi、Cgi分别为四基色中红、绿、蓝、青的灰阶值，γ为预设的伽马值。
可以理解的，本实施方式的驱动装置是基于上述驱动方法的一实施方式，其实施原理和步骤类似，这里不再赘述。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (18)

  1. 一种石墨烯显示器，其中，所述石墨烯显示器包括显示面板以及与所述显示面板电连接的驱动装置，所述显示面板包括多个阵列分布的像素，每个所述像素包括两个动态亚像素和一个固定亚像素；
    其中，所述驱动装置包括：
    获取模块，用于获取待输入的所述像素的三基色灰阶值；
    确定模块，用于根据所述像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和一个固定亚像素的颜色和灰阶值；
    驱动模块，用于向所述两个动态亚像素和所述固定亚像素分别施加与所述两个动态亚像素和所述固定亚像素的颜色和灰阶值相应的驱动电压。
  2. 根据权利要求1所述的石墨烯显示器，其中，所述三基色为红、绿、蓝，所述四基色为红、绿、蓝、青。
  3. 根据权利要求2所述的石墨烯显示器，其中，所述确定模块还用于：
    根据所述像素的三基色灰阶值，确定所述像素在色域坐标系中的目标色点落入的色域块；其中，所述色域坐标系包括四基色分别对应的三个色域块；以及
    根据所述目标色点落入的色域块，确定所述两个动态亚像素和所述固定亚像素的颜色和灰阶值。
  4. 根据权利要求3所述的石墨烯显示器，其中，所述确定模块还用于：
    由所述像素的红、绿、蓝的灰阶值Ri、Gi、Bi，计算得到其中的最大值a＝max(Ri，Gi，Bi)以及最小值b＝min(Ri，Gi，Bi)；
    若b≠Gi且a≠b，确定所述像素在色域坐标系中的目标色点落入WGRB色域块；
    若b＝Ri或a＝b，且a＝Gi，确定所述像素在色域坐标系中的目标色点落入 WGC色域块；
    若b＝Ri或a＝b，且a≠Gi，确定所述像素在色域坐标系中的目标色点落入WCB色域块。
  5. 根据权利要求4所述的石墨烯显示器，其中，所述确定模块还用于：
    在所述像素在色域坐标系中的目标色点落入WGRB色域块时，确定所述固定亚像素和所述两个动态亚像素的灰阶值为：Rgi＝Ri，Ggi＝Gi，Bgi＝Bi；
    在若所述像素在色域坐标系中的目标色点落入WGC色域块时，确定所述固定亚像素和所述两个动态亚像素的灰阶值为：Rgi＝Ri，
    Figure PCTCN2016086813-appb-100001
    Figure PCTCN2016086813-appb-100002
    Cgi＝Bi；
    在若所述像素在色域坐标系中的目标色点落入WCB色域块时，确定所述固定亚像素和所述两个动态亚像素的灰阶值为：Rgi＝Bi，Cgi＝Gi，
    Figure PCTCN2016086813-appb-100003
    Figure PCTCN2016086813-appb-100004
    其中，Rgi、Ggi、Bgi、Cgi分别为四基色中红、绿、蓝、青的灰阶值，γ为预设的伽马值。
  6. 根据权利要求4所述的石墨烯显示器，其中，所述驱动装置还包括色域坐标建立模块，用于建立所述四基色的色域坐标系；将所述色域坐标系划分为WGRB、WGC、WCB三个色域块。
  7. 一种石墨烯显示器的驱动方法，其中，所述石墨烯显示器的每个像素包括两个动态亚像素和一个固定亚像素，所述方法包括：
    获取待输入的所述像素的三基色灰阶值；
    根据所述像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定所述两个动态亚像素和所述固定亚像素的颜色和灰阶值；
    向所述两个动态亚像素和所述固定亚像素分别施加与所述两个动态亚像素和所述固定亚像素的颜色和灰阶值相应的驱动电压。
  8. 根据权利要求7所述的方法，其中，所述三基色为红、绿、蓝，所述四基 色为红、绿、蓝、青。
  9. 根据权利要求8所述的方法，其中，所述根据所述像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定所述两个动态亚像素和所述固定亚像素的颜色和灰阶值，包括：
    根据所述像素的三基色灰阶值，确定所述像素在色域坐标系中的目标色点落入的色域块；其中，所述色域坐标系包括四基色分别对应的三个色域块；
    根据所述目标色点落入的色域块，确定所述两个动态亚像素和所述固定亚像素的颜色和灰阶值。
  10. 根据权利要求9所述的方法，其中，所述根据所述像素的三基色灰阶值，确定所述像素在色域坐标系中的目标色点落入的色域块，包括：
    由所述像素的红、绿、蓝的灰阶值Ri、Gi、Bi，计算得到其中的最大值a＝max(Ri，Gi，Bi)以及最小值b＝min(Ri，Gi，Bi)；
    若b≠Gi且a≠b，确定所述像素在色域坐标系中的目标色点落入WGRB色域块；
    若b＝Ri或a＝b，且a＝Gi，确定所述像素在色域坐标系中的目标色点落入WGC色域块；
    若b＝Ri或a＝b，且a≠Gi，确定所述像素在色域坐标系中的目标色点落入WCB色域块。
  11. 根据权利要求10所述的方法，其中，所述根据所述目标色点落入的色域块，确定所述两个动态亚像素和所述固定亚像素的颜色和灰阶值，包括：
    若所述像素在色域坐标系中的目标色点落入WGRB色域块，则Rgi＝Ri，Ggi＝Gi，Bgi＝Bi；
    若所述像素在色域坐标系中的目标色点落入WGC色域块，则Rgi＝Ri，
    Figure PCTCN2016086813-appb-100005
    Cgi＝Bi；
    若所述像素在色域坐标系中的目标色点落入WCB色域块，则Rgi＝Bi，Cgi＝Gi，
    Figure PCTCN2016086813-appb-100006
    其中，Rgi、Ggi、Bgi、Cgi分别为四基色中红、绿、蓝、青的灰阶值，γ为预设的伽马值。
  12. 根据权利要求10所述的方法，其中，所述方法还包括：
    建立所述四基色的色域坐标系；
    将所述色域坐标系划分为WGRB、WGC、WCB三个色域块。
  13. 一种石墨烯显示器的驱动装置，其中，包括：
    获取模块，用于获取待输入的所述像素的三基色灰阶值；
    确定模块，用于根据所述像素的三基色灰阶值以及预设的三基色灰阶值和四基色灰阶值的对应关系，确定两个动态亚像素和一个固定亚像素的颜色和灰阶值；
    驱动模块，用于向所述两个动态亚像素和所述固定亚像素分别施加与所述两个动态亚像素和所述固定亚像素的颜色和灰阶值相应的驱动电压。
  14. 根据权利要求13所述的装置，其中，所述三基色为红、绿、蓝，所述四基色为红、绿、蓝、青。
  15. 根据权利要求14所述的装置，其中，所述确定模块还用于：
    根据所述像素的三基色灰阶值，确定所述像素在色域坐标系中的目标色点落入的色域块；其中，所述色域坐标系包括四基色分别对应的三个色域块；以及
    根据所述目标色点落入的色域块，确定所述两个动态亚像素和所述固定亚像素的颜色和灰阶值。
  16. 根据权利要求15所述的装置，其中，所述确定模块还用于：
    由所述像素的红、绿、蓝的灰阶值Ri、Gi、Bi，计算得到其中的最大值a＝max(Ri，Gi，Bi)以及最小值b＝min(Ri，Gi，Bi)；
    若b≠Gi且a≠b，确定所述像素在色域坐标系中的目标色点落入WGRB色域块；
    若b＝Ri或a＝b，且a＝Gi，确定所述像素在色域坐标系中的目标色点落入 WGC色域块；
    若b＝Ri或a＝b，且a≠Gi，确定所述像素在色域坐标系中的目标色点落入WCB色域块。
  17. 根据权利要求16所述的装置，其中，所述确定模块还用于：
    在所述像素在色域坐标系中的目标色点落入WGRB色域块时，确定所述固定亚像素和所述两个动态亚像素的灰阶值为：Rgi＝Ri，Ggi＝Gi，Bgi＝Bi；
    在若所述像素在色域坐标系中的目标色点落入WGC色域块时，确定所述固定亚像素和所述两个动态亚像素的灰阶值为：Rgi＝Ri，
    Figure PCTCN2016086813-appb-100007
    Figure PCTCN2016086813-appb-100008
    Cgi＝Bi；
    在若所述像素在色域坐标系中的目标色点落入WCB色域块时，确定所述固定亚像素和所述两个动态亚像素的灰阶值为：Rgi＝Bi，Cgi＝Gi，
    Figure PCTCN2016086813-appb-100009
    Figure PCTCN2016086813-appb-100010
    其中，Rgi、Ggi、Bgi、Cgi分别为四基色中红、绿、蓝、青的灰阶值，γ为预设的伽马值。
  18. 根据权利要求16所述的装置，其中，所述驱动装置还包括色域坐标建立模块，用于建立所述四基色的色域坐标系；将所述色域坐标系划分为WGRB、WGC、WCB三个色域块。
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