WO2016082313A1 - 一种液晶显示面板的肤色色偏的改善方法及改善系统 - Google Patents

一种液晶显示面板的肤色色偏的改善方法及改善系统 Download PDF

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WO2016082313A1
WO2016082313A1 PCT/CN2015/070297 CN2015070297W WO2016082313A1 WO 2016082313 A1 WO2016082313 A1 WO 2016082313A1 CN 2015070297 W CN2015070297 W CN 2015070297W WO 2016082313 A1 WO2016082313 A1 WO 2016082313A1
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skin color
frame
pixels
liquid crystal
value
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French (fr)
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陈黎暄
康志聪
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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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • 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
    • G09G3/3611—Control of matrices with row and column drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction
    • 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
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular to a method and an improvement system for improving skin color deviation of a liquid crystal display panel.
  • LCDs liquid crystal displays
  • the Vertical Alignment (VA) display mode is popular in the market due to its good viewing angle characteristics.
  • the long axis of the liquid crystal molecules in the pixel unit is perpendicular to the filter in an uncharged state, and each pixel unit is divided into a plurality of domain regions (multi-domain), in a power-on state.
  • the liquid crystal molecules in each domain region are deflected in respective directions.
  • the liquid crystal molecules in the same pixel unit are oriented into a plurality of directions, thereby compensating the viewing angles of the respective angles, thereby achieving uniformity in the respective viewing angle directions. Display to effectively improve the viewing angle characteristics in the gray scale display state of different viewing angles.
  • the gamma value of the large-view image is usually deviated from the curve having a gamma value of 2.2, so that the skin color of the large-view image appears a white-out phenomenon.
  • an object of the present invention is to provide a method for improving skin color shift of a liquid crystal display panel, comprising: obtaining a ratio of a skin color region in a frame of a liquid crystal display panel to be displayed; Comparing the ratio of the skin color region to a predetermined value; if the ratio of the skin color region is greater than the predetermined value, using the first gamma value for the red data, the green data, and the blue in the frame of the frame The color data is gamma corrected; wherein the first gamma value is greater than 2.2.
  • the improvement method further includes: if the ratio of the skin color region is not greater than the predetermined value, using the second gamma value for the red data, the green data, and the blue in the frame of the frame The data is gamma corrected; wherein the second gamma value is less than the first gamma value.
  • the method for acquiring the ratio of the skin color regions includes: acquiring the number of pixels in the skin color region; acquiring the number of pixels in the frame of the frame; and dividing the number of pixels in the skin color region by the number The number of pixels in a frame.
  • the predetermined value ranges from 0.1 to 0.2.
  • the first gamma value is greater than or equal to 2.4.
  • Another object of the present invention is to provide a system for improving skin color deviation of a liquid crystal display panel, comprising: a skin color area ratio obtaining unit configured to acquire a ratio of skin color regions in a frame of a liquid crystal display panel to be displayed. a comparison unit configured to compare a ratio of the skin color region to a predetermined value; the first lookup table unit configured to use the first gamma if a ratio of the skin color region is greater than the predetermined value The horse value performs gamma correction on the red data, the green data, and the blue data in the one frame picture; wherein the first gamma value is greater than 2.2.
  • the improvement system further includes: a second lookup table unit configured to use the second gamma value to red in the one frame if the ratio of the skin color region is not greater than the predetermined value
  • the data, the green data, and the blue data are gamma corrected; wherein the second gamma value is less than the first gamma value.
  • the skin color area ratio obtaining unit includes: a first pixel acquiring unit configured to acquire the number of pixels in the skin color region; and a second pixel acquiring unit configured to acquire pixels in the one frame image a quantity; a calculation unit configured to divide the number of pixels in the skin color region by the number of pixels in the one frame of the picture.
  • the predetermined value ranges from 0.1 to 0.2.
  • the first gamma value is greater than or equal to 2.4.
  • FIG. 1 is a flowchart of a method of improving skin color shift of a liquid crystal display panel according to an embodiment of the present invention
  • FIG. 2 is a block diagram of an improved system of skin tone color shift of a liquid crystal display panel according to an embodiment of the present invention
  • FIG. 3 is an internal configuration diagram of a skin color area ratio value acquisition unit according to an embodiment of the present invention.
  • FIG. 1 is a flow chart of a method of improving skin color shift of a liquid crystal display panel according to an embodiment of the present invention.
  • a method for improving skin color shift of a liquid crystal display panel includes the following steps:
  • Step S110 the liquid crystal display panel receives the input red (R) data, the green (G) data, and the blue (B) data, and acquires the skin color region of a frame to be displayed according to the input RGB data.
  • the red data includes but is not limited to red gray scale
  • green data Including but not limited to red gray scale
  • blue data includes but is not limited to blue gray scale.
  • step S110 the specific method for the liquid crystal display panel to obtain the ratio of the skin color regions in a frame of the image to be displayed according to the input RGB data includes:
  • step S111 the liquid crystal display panel acquires the number of pixels in the skin color region according to the input RGB data.
  • the liquid crystal display panel can obtain the number of pixels in the skin color region by using the input RGB data according to the skin color optimization method described in Chinese Patent No. 201310177454.1, but the present invention is not limited to the best skin color described in Chinese Patent 201310177454.1. Method.
  • Step S112 the liquid crystal display panel acquires the number of pixels in a frame of the frame to be displayed according to the input RGB data.
  • step S113 the liquid crystal display panel uses the number of pixels in the skin color region by the number of pixels in a frame of the frame to be displayed, thereby acquiring the proportion of the skin color region.
  • step S120 the liquid crystal display panel compares the proportion of the skin color region with a predetermined value.
  • the predetermined value may range from 0.1 to 0.2.
  • step S130 If the ratio of the skin color area is greater than the predetermined value, step S130 is performed. If the ratio of the skin color area is not greater than the predetermined value, step S140 is performed.
  • step S130 the liquid crystal display panel performs gamma correction on the red data, the green data, and the blue data in a frame to be displayed by using the first gamma value; wherein the first gamma value is greater than 2.2.
  • the first gamma value is greater than or equal to 2.4.
  • Step S140 the liquid crystal display panel performs gamma correction on the red data, the green data, and the blue data in a frame to be displayed by using the second gamma value; wherein the second gamma value is smaller than the The first gamma value.
  • the second gamma value is 2.2.
  • FIG. 2 is a block diagram of an improved system of skin tone color shift of a liquid crystal display panel according to an embodiment of the present invention.
  • the skin color deviation improving system of the liquid crystal display panel includes a skin color area ratio value acquiring unit 210, a comparing unit 220, a first lookup table unit 230, and a second lookup table unit 240.
  • the first lookup table unit 230 and the second check according to an embodiment of the present invention
  • the look-up table unit 240 may be built in a timing controller (not shown), but the present invention is not limited thereto.
  • the improvement system may include other and/or different units. Similarly, the functions of the above units can be combined into a single component.
  • the skin color area ratio value obtaining unit 210 receives the input red (R) data, the green (G) data, and the blue (B) data, and acquires the skin color of one frame of the liquid crystal display panel to be displayed based on the input RGB data.
  • the proportion of the area includes, but is not limited to, a gray scale of red
  • the data of the green includes but is not limited to the gray scale of the green
  • the data of the blue includes, but not limited to, the gray scale of the blue.
  • the skin color area ratio value acquisition unit 210 includes a first pixel acquiring unit 211, a second pixel acquiring unit 212, and a calculating unit 213.
  • the first pixel acquisition unit 211 receives the input RGB data, and acquires the number of pixels in the skin color region in one frame of the screen to be displayed by the liquid crystal display panel based on the input RGB data.
  • the first pixel acquisition unit 211 can obtain the number of pixels in the skin color region of one frame of the image to be displayed by the liquid crystal display panel using the input RGB data, for example, according to the skin color optimization method described in Chinese Patent No. 201310177454.1, but the present invention does not It is limited to the skin color optimization method described in Chinese Patent 201310177454.1.
  • the second pixel acquiring unit 212 is configured to acquire, according to the input RGB data, the number of pixels in the skin color region in one frame of the screen to be displayed by the liquid crystal display panel.
  • the calculating unit 213 is configured to divide the number of pixels in the skin color region by the number of pixels in the one frame image to obtain a ratio of skin color regions in a frame of a screen to be displayed by the liquid crystal display panel.
  • the comparing unit 220 is configured to compare the ratio of the skin color regions in a frame of the screen to be displayed by the liquid crystal display panel with a predetermined value.
  • the predetermined value may range from 0.1 to 0.2.
  • the first lookup table unit 230 uses the first gamma value to display the liquid crystal display panel.
  • the gamma correction is performed on the red data, the green data, and the blue data in one frame; wherein the first gamma value is greater than 2.2.
  • the first gamma value is greater than or equal to 2.4.
  • the second lookup table unit 240 uses the second gamma value to display the liquid crystal display panel.
  • the gamma correction is performed on the red data, the green data, and the blue data in one frame of the picture; wherein the second gamma value is smaller than the first gamma value.
  • the second gamma value is 2.2.
  • the system and the improvement method of the skin color shift of the liquid crystal display panel when determining the ratio of the skin color region in a frame to be displayed by the liquid crystal display panel based on the input RGB data is greater than one
  • the gamma value of the gamma correction of the red data, the green data, and the blue data in one frame of the liquid crystal display panel to be displayed is increased, that is, the gamma of the front view picture of the liquid crystal display panel
  • the value is increased; accordingly, the gamma value of the large viewing angle picture of the liquid crystal display panel is closer to the curve with the gamma value of 2.2, thereby eliminating the appearance of the skin color of the large-view image of the liquid crystal display panel.

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  • Computer Hardware Design (AREA)
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  • Chemical & Material Sciences (AREA)
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Abstract

一种液晶显示面板的肤色色偏的改善方法，包括：获取液晶显示面板将要显示的一帧画面中肤色区域的占比值；对该肤色区域的占比值与一预定值进行比较；如果该肤色区域的占比值大于预定值，则利用第一伽马值对所述一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，第一伽马值大于２．２。还公开一种液晶显示面板的肤色色偏的改善系统。该液晶显示面板的正视角画面的伽马值增加；相应地，将液晶显示面板的大视角画面的伽马值更接近伽马值为２．２的曲线，从而消除液晶显示面板的大视角画面的肤色出现偏白现象。

Description

一种液晶显示面板的肤色色偏的改善方法及改善系统 技术领域
本发明属于液晶显示技术领域，具体地讲，涉及一种液晶显示面板的肤色色偏的改善方法及改善系统。
背景技术
随着光电与半导体技术的演进，也带动了平板显示器(Flat Panel Display)的蓬勃发展，而在诸多平板显示器中，液晶显示器(Liquid Crystal Display，简称LCD)因具有高空间利用效率、低消耗功率、无辐射以及低电磁干扰等诸多优越特性，已成为市场的主流。
在液晶显示器的各种显示模式中，垂直排列(Vertical Alignment，VA)显示模式由于其良好的视角特性受到市场的欢迎。在VA显示模式的LCD中，像素单元内液晶分子的长轴在不加电的状态下与滤光片垂直，每个像素单元被划分为多个畴区(多畴)，在加电状态下，每个畴区内的液晶分子向各自的方向偏转，通过这种方法，将同一像素单元中的液晶分子取向分为多个方向，由此补偿各个角度的视角，进而实现各个视角方向的均匀显示，以有效改善不同观察角度的灰阶显示状态下的视角特性。
然而，针对现有技术的VA显示模式的液晶显示器，其大视角画面的伽马值通常偏离伽马值为2.2的曲线，从而使得大视角图像的肤色出现偏白(Wash Out)现象。
发明内容
为了解决上述现有技术存在的问题，本发明的目的在于提供一种液晶显示面板的肤色色偏的改善方法，包括：获取液晶显示面板将要显示的一帧画面中肤色区域的占比值；对所述肤色区域的占比值与一预定值进行比较；如果所述肤色区域的占比值大于所述预定值，则利用第一伽马值对所述一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第一伽马值大于 2.2。
进一步地，所述改善方法还包括：如果所述肤色区域的占比值不大于所述预定值时，则利用第二伽马值对所述一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第二伽马值小于所述第一伽马值。
进一步地，获取所述肤色区域的占比值的方法具体包括：获取所述肤色区域中像素的数量；获取所述一帧画面中像素的数量；利用所述肤色区域中像素的数量除以所述一帧画面中像素的数量。
进一步地，所述预定值的取值范围为0.1～0.2。
进一步地，所述第一伽马值大于或等于2.4。
本发明的另一目的还在于提供一种液晶显示面板的肤色色偏的改善系统，包括：肤色区域占比值获取单元，被构造为获取液晶显示面板将要显示的一帧画面中肤色区域的占比值；比较单元，被构造为对所述肤色区域的占比值与一预定值进行比较；第一查找表单元，被构造为如果所述肤色区域的占比值大于所述预定值，则利用第一伽马值对所述一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第一伽马值大于2.2。
进一步地，所述改善系统还包括：第二查找表单元，被构造为如果所述肤色区域的占比值不大于所述预定值时，则利用第二伽马值对所述一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第二伽马值小于所述第一伽马值。
进一步地，所述肤色区域占比值获取单元包括：第一像素获取单元，被构造为获取所述肤色区域中像素的数量；第二像素获取单元，被构造为获取所述一帧画面中像素的数量；计算单元，被构造为利用所述肤色区域中像素的数量除以所述一帧画面中像素的数量。
进一步地，所述预定值的取值范围为0.1～0.2。
进一步地，所述第一伽马值大于或等于2.4。
本发明的有益效果：当基于输入的RGB数据确定液晶显示面板将要显示 的一帧画面中肤色区域的占比值大于一预定值时，将对液晶显示面板将要显示的一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正的伽马值进行增加，即液晶显示面板的正视角画面的伽马值增加；相应地，液晶显示面板的大视角画面的伽马值更接近伽马值为2.2的曲线，从而消除液晶显示面板的大视角画面的肤色出现偏白(Wash Out)现象。
附图说明
通过结合附图进行的以下描述，本发明的实施例的上述和其它方面、特点和优点将变得更加清楚，附图中：
图1是根据本发明的实施例的液晶显示面板的肤色色偏的改善方法的流程图；
图2是根据本发明的实施例的液晶显示面板的肤色色偏的改善系统的模块图；
图3是根据本发明的实施例的肤色区域占比值获取单元的内部配置图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。
图1是根据本发明的实施例的液晶显示面板的肤色色偏的改善方法的流程图。
参照图1，根据本发明的实施例的液晶显示面板的肤色色偏的改善方法包括以下步骤：
步骤S110，液晶显示面板接收输入的红色(R)的数据、绿色(G)的数据及蓝色(B)的数据，并根据输入的RGB数据获取其将要显示的一帧画面中肤色区域的占比值。这里，红色的数据包括但不限于红色的灰阶，绿色的数据 包括但不限于红色的灰阶，蓝色的数据包括但不限于蓝色的灰阶。
在步骤S110中，液晶显示面板根据输入的RGB数据获取其将要显示的一帧画面中肤色区域的占比值的具体方法包括：
步骤S111，液晶显示面板根据输入的RGB数据获取肤色区域中像素的数量。在步骤S111中，液晶显示面板可根据中国专利201310177454.1所述的肤色最佳化方法利用输入的RGB数据获取肤色区域中像素的数量，但本发明并不局限于中国专利201310177454.1所述的肤色最佳化方法。
步骤S112，液晶显示面板根据输入的RGB数据获取其将要显示的一帧画面中像素的数量。
步骤S113，液晶显示面板利用肤色区域中像素的数量除以其将要显示的一帧画面中像素的数量，从而获取肤色区域的占比值。
步骤S120，液晶显示面板将肤色区域的占比值与一预定值进行比较。在步骤S120中，该预定值的取值范围可为0.1～0.2。
如果肤色区域的占比值大于所述预定值，则进行步骤S130。如果肤色区域的占比值不大于所述预定值，则进行步骤S140。
步骤S130，液晶显示面板利用第一伽马值对其将要显示的一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第一伽马值大于2.2。优选的，所述第一伽马值大于或等于2.4。
步骤S140，液晶显示面板利用第二伽马值对其将要显示的一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第二伽马值小于所述第一伽马值。优选的，所述第二伽马值为2.2。
图2是根据本发明的实施例的液晶显示面板的肤色色偏的改善系统的模块图。
参照图2，根据本发明的实施例的液晶显示面板的肤色色偏的改善系统包括：肤色区域占比值获取单元210、比较单元220、第一查找表单元230、第二查找表单元240。这里，根据本发明的实施例的第一查找表单元230和第二查 找表单元240可都内置于时序控制器(未示出)中，但本发明并不限制于此。根据本发明的其他实施方式，改善系统可包括其他和/或不同的单元。类似的，上述单元的功能可合并为单个组件。
肤色区域占比值获取单元210接收输入的红色(R)的数据、绿色(G)的数据及蓝色(B)的数据，并基于输入的RGB数据获取液晶显示面板将要显示的一帧画面中肤色区域的占比值。这里，红色的数据包括但不限于红色的灰阶，绿色的数据包括但不限于绿色的灰阶，蓝色的数据包括但不限于蓝色的灰阶。
根据本发明的实施例的肤色区域占比值获取单元210的内部配置如图3所示。参照图3，肤色区域占比值获取单元210包括：第一像素获取单元211、第二像素获取单元212、计算单元213。
第一像素获取单元211接收输入的RGB数据，并基于输入的RGB数据获取液晶显示面板将要显示的一帧画面中肤色区域中像素的数量。这里，第一像素获取单元211可例如根据中国专利201310177454.1所述的肤色最佳化方法利用输入的RGB数据获取液晶显示面板将要显示的一帧画面中肤色区域中像素的数量，但本发明并不局限于中国专利201310177454.1所述的肤色最佳化方法。
第二像素获取单元212用于根据输入的RGB数据获取液晶显示面板将要显示的一帧画面中肤色区域中像素的数量。
计算单元213用于利用所述肤色区域中像素的数量除以所述一帧画面中像素的数量，以获取液晶显示面板将要显示的一帧画面中肤色区域的占比值。
比较单元220用于对液晶显示面板将要显示的一帧画面中肤色区域的占比值与一预定值进行比较。这里，该预定值的取值范围可为0.1～0.2。
经比较单元220比对后，如果液晶显示面板将要显示的一帧画面中肤色区域的占比值大于所述预定值，则第一查找表单元230利用第一伽马值对液晶显示面板将要显示的一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第一伽马值大于2.2。优选的，所述第一伽马值大于或等于 2.4。
经比较单元220比对后，如果液晶显示面板将要显示的一帧画面中肤色区域的占比值不大于所述预定值，则第二查找表单元240利用第二伽马值对液晶显示面板将要显示的一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第二伽马值小于所述第一伽马值。优选的，所述第二伽马值为2.2。
综上所述，根据本发明的实施例的液晶显示面板的肤色色偏的改善系统及改善方法，当基于输入的RGB数据确定液晶显示面板将要显示的一帧画面中肤色区域的占比值大于一预定值时，将对液晶显示面板将要显示的一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正的伽马值进行增加，即液晶显示面板的正视角画面的伽马值增加；相应地，液晶显示面板的大视角画面的伽马值更接近伽马值为2.2的曲线，从而消除液晶显示面板的大视角画面的肤色出现偏白(Wash Out)现象。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (16)

  1. 一种液晶显示面板的肤色色偏的改善方法，其中，包括：
    获取液晶显示面板将要显示的一帧画面中肤色区域的占比值；
    对所述肤色区域的占比值与一预定值进行比较；
    如果所述肤色区域的占比值大于所述预定值，则利用第一伽马值对所述一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；
    其中，所述第一伽马值大于2.2。
  2. 根据权利要求1所述的改善方法，其中，还包括：
    如果所述肤色区域的占比值不大于所述预定值时，则利用第二伽马值对所述一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；
    其中，所述第二伽马值小于所述第一伽马值。
  3. 根据权利要求1所述的改善方法，其中，获取所述肤色区域的占比值的方法具体包括：
    获取所述肤色区域中像素的数量；
    获取所述一帧画面中像素的数量；
    利用所述肤色区域中像素的数量除以所述一帧画面中像素的数量。
  4. 根据权利要求2所述的改善方法，其中，获取所述肤色区域的占比值的方法具体包括：
    获取所述肤色区域中像素的数量；
    获取所述一帧画面中像素的数量；
    利用所述肤色区域中像素的数量除以所述一帧画面中像素的数量。
  5. 根据权利要求1所述的改善方法，其中，所述预定值的取值范围为0.1～0.2。
  6. 根据权利要求2所述的改善方法，其中，所述预定值的取值范围为0.1～0.2。
  7. 根据权利要求1所述的改善方法，其中，所述第一伽马值大于或等于2.4。
  8. 根据权利要求2所述的改善方法，其中，所述第一伽马值大于或等于2.4。
  9. 一种液晶显示面板的肤色色偏的改善系统，其中，包括：
    肤色区域占比值获取单元，被构造为获取液晶显示面板将要显示的一帧画面中肤色区域的占比值；
    比较单元，被构造为对所述肤色区域的占比值与一预定值进行比较；
    第一查找表单元，被构造为如果所述肤色区域的占比值大于所述预定值，则利用第一伽马值对所述一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第一伽马值大于2.2。
  10. 根据权利要求9所述的改善系统，其中，所述改善系统还包括：
    第二查找表单元，被构造为如果所述肤色区域的占比值不大于所述预定值时，则利用第二伽马值对所述一帧画面中红色的数据、绿色的数据和蓝色的数据进行伽马校正；其中，所述第二伽马值小于所述第一伽马值。
  11. 根据权利要求9所述的改善系统，其中，所述肤色区域占比值获取单元包括：
    第一像素获取单元，被构造为获取所述肤色区域中像素的数量；
    第二像素获取单元，被构造为获取所述一帧画面中像素的数量；
    计算单元，被构造为利用所述肤色区域中像素的数量除以所述一帧画面中 像素的数量。
  12. 根据权利要求10所述的改善系统，其中，所述肤色区域占比值获取单元包括：
    第一像素获取单元，被构造为获取所述肤色区域中像素的数量；
    第二像素获取单元，被构造为获取所述一帧画面中像素的数量；
    计算单元，被构造为利用所述肤色区域中像素的数量除以所述一帧画面中像素的数量。
  13. 根据权利要求9所述的改善系统，其中，所述预定值的取值范围为0.1～0.2。
  14. 根据权利要求10所述的改善系统，其中，所述预定值的取值范围为0.1～0.2。
  15. 根据权利要求9所述的改善系统，其中，所述第一伽马值大于或等于2.4。
  16. 根据权利要求10所述的改善系统，其中，所述第一伽马值大于或等于2.4。
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Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104485077B (zh) * 2014-12-16 2017-04-26 深圳市华星光电技术有限公司 一种液晶显示面板及其驱动方法
CN104658504B (zh) * 2015-03-09 2017-05-10 深圳市华星光电技术有限公司 一种液晶显示器的驱动方法及驱动装置
CN104751818B (zh) * 2015-04-01 2017-07-28 深圳市华星光电技术有限公司 一种色偏补偿方法及装置
CN105388649B (zh) * 2015-12-28 2018-09-28 深圳市华星光电技术有限公司 Lcd屏幕的视角色偏的补偿方法
CN106454303B (zh) * 2016-10-27 2018-07-13 青岛海信电器股份有限公司 Rgbw图像处理方法及装置
CN106847205B (zh) 2016-12-27 2018-02-13 惠科股份有限公司 液晶显示器件及其驱动方法
CN107068096A (zh) * 2017-05-11 2017-08-18 京东方科技集团股份有限公司 Gamma电压补偿系统、方法和显示装置
CN107978289B (zh) * 2017-12-20 2020-02-21 惠科股份有限公司 一种显示装置的驱动方法及驱动装置
CN109147712B (zh) * 2018-10-08 2020-06-26 惠州市华星光电技术有限公司 一种改善显示面板的视角色偏的方法及系统
CN111091790B (zh) * 2018-10-23 2022-03-15 深圳天德钰科技股份有限公司 时序控制器及具有时序控制器的液晶显示装置
CN110675834B (zh) 2019-09-25 2021-01-01 惠州市华星光电技术有限公司 改善有色人种肤色视角表现的设计方法及系统
CN110910851B (zh) * 2019-12-18 2021-08-03 京东方科技集团股份有限公司 一种源极驱动电路、驱动方法和显示装置
CN112992036B (zh) * 2021-02-26 2022-05-31 北海惠科光电技术有限公司 一种显示面板的驱动方法、装置及显示设备
CN113539205B (zh) * 2021-07-30 2022-07-29 深圳市华星光电半导体显示技术有限公司 像素电压的确定方法、装置、电子设备以及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1116394A (zh) * 1994-04-15 1996-02-07 松下电器产业株式会社 图像信号的肤色再生电路
CN1685739A (zh) * 2002-09-26 2005-10-19 精工爱普生株式会社 图象数据的输出图象调整
KR20100132334A (ko) * 2009-06-09 2010-12-17 엘지전자 주식회사 영상표시기기에서 영상 화질 조정을 위한 장치 및 방법
CN102347005A (zh) * 2010-07-30 2012-02-08 奇美电子股份有限公司 影像调整方法与装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6904165B2 (en) * 2001-08-08 2005-06-07 Silicon Integrated Systems Corporation Color image processing apparatus and method for color enhancement
US20060077199A1 (en) * 2004-10-11 2006-04-13 Mu-Shan Liao Dynamic level-adjustment compensation circuit and method for dynamic level-adjustment compensation
US8265389B2 (en) * 2008-07-02 2012-09-11 Qualcomm Icorporated Color enhancement for digital images
JPWO2010061493A1 (ja) * 2008-11-27 2012-04-19 パナソニック株式会社 映像処理装置及び映像処理方法
US8508449B2 (en) * 2008-12-18 2013-08-13 Sharp Corporation Adaptive image processing method and apparatus for reduced colour shift in LCDs
JP5361368B2 (ja) * 2008-12-22 2013-12-04 任天堂株式会社 ゲームプログラム、ゲーム装置およびゲーム制御方法
CN103106884B (zh) * 2013-02-05 2015-11-25 深圳市华星光电技术有限公司 一种改善液晶屏的视角肤色色偏的方法及系统
CN103248793B (zh) * 2013-05-14 2016-08-10 旭曜科技股份有限公司 色域转换系统的肤色最佳化方法与装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1116394A (zh) * 1994-04-15 1996-02-07 松下电器产业株式会社 图像信号的肤色再生电路
CN1685739A (zh) * 2002-09-26 2005-10-19 精工爱普生株式会社 图象数据的输出图象调整
KR20100132334A (ko) * 2009-06-09 2010-12-17 엘지전자 주식회사 영상표시기기에서 영상 화질 조정을 위한 장치 및 방법
CN102347005A (zh) * 2010-07-30 2012-02-08 奇美电子股份有限公司 影像调整方法与装置

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