WO2018045676A1 - 显示面板的亮度和色度的调节计算方法及*** - Google Patents

显示面板的亮度和色度的调节计算方法及*** Download PDF

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WO2018045676A1
WO2018045676A1 PCT/CN2016/112240 CN2016112240W WO2018045676A1 WO 2018045676 A1 WO2018045676 A1 WO 2018045676A1 CN 2016112240 W CN2016112240 W CN 2016112240W WO 2018045676 A1 WO2018045676 A1 WO 2018045676A1
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gray scale
weight
green
color
color coordinates
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PCT/CN2016/112240
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English (en)
French (fr)
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金羽锋
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武汉华星光电技术有限公司
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Priority to US15/326,229 priority Critical patent/US10339849B2/en
Publication of WO2018045676A1 publication Critical patent/WO2018045676A1/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
    • G09G3/34—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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems
    • 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 display technologies, and in particular, to a method for calculating brightness and chromaticity of a display panel.
  • LCD screens are widely used in information communication tools such as TVs, mobile phones, and tablets, because of their high space utilization, low power consumption, no radiation, and low electromagnetic interference.
  • the original optical characteristics of the liquid crystal display panel have certain defects. For example, the color points of 0 gray scale to 255 gray scale are inconsistent, and there is color shift phenomenon; and the brightness change of 0 gray scale to 255 gray scale does not conform to the observation feature of the human eye. Therefore, it is necessary to perform optical adjustment on the display panel. Generally, the optical adjustment needs to be repeatedly adjusted to judge whether the display effect is good or not.
  • Figure 1 is an ideal color point representation in which only the color points of the 0 gray scale are offset, and the remaining gray levels are concentrated at one point.
  • Figure 2 shows the ideal gamma performance. It can be seen that the luminance gradient of most gray scales is in gamma 2.2.
  • the existing brightness and chromaticity adjustment methods are as follows: firstly perform gamma tie point adjustment, then measure raw data of 0 gray scale to 255 gray scale, and then interpolate the original data into finer data. After determining the target brightness, the best value is searched in fixed color coordinates. After the brightness reaches the standard, the color point often has a deviation. However, the low gray scale must have a gradual process of color coordinates. When the same method is used, the found color points are deviated, and then the low gray scale needs to be manually adjusted.
  • FIG 3 shows the color point representation using the existing adjustment method. It can be seen that there is an offset in the low gray level.
  • Figure 4 shows the gamma performance using the existing adjustment method. It can be seen that the gamma shift is also significant. Therefore, the existing brightness and chromaticity adjustment methods have technical problems of large offset.
  • the invention provides a method for calculating the brightness and chromaticity of a display panel, comprising:
  • the color coordinates of the target gray scales of red and blue are calculated and recorded using the determined weight coefficients.
  • the acquiring the original data is specifically:
  • the color coordinates of red and blue are matched, specifically:
  • a second distance between the color coordinates of the temporary gray scale and the color temperature approximation line is calculated.
  • the determining the weight coefficient according to the level of the gray level of the green is specifically:
  • the first weight is 0.9 and the second weight is 0.1;
  • the first weight is 0.5 and the second weight is 0.5;
  • the first weight is 1 and the second weight is 0.
  • the color coordinate of the red or blue target gray scale and the 0 gray scale color coordinate are the sum of the first product and the second product.
  • the invention also provides an adjustment system for brightness and chromaticity of a display panel, comprising an optical measuring device, a computer and a communication plate;
  • the optical measuring device is configured to acquire original gray scale data from a display device
  • the computer is connected to the display device through the communication block;
  • the computer is configured to adjust the gray scale of the green to match the brightness value of the pixel to the standard gamma curve; to match the color coordinates of the red and blue colors by using the gray scale of the green; and determine the weight coefficient according to the level of the gray scale of the green; The color coordinates of the target gray scales of red and blue are calculated and recorded using the determined weight coefficients.
  • the optical measuring device is specifically configured to obtain 11-bit original gray-scale data by linear interpolation.
  • the color matching of the red and blue colors is performed by using a gray scale of green, specifically:
  • a second distance between the color coordinates of the temporary gray scale and the color temperature approximation line is calculated.
  • the determining the weight coefficient according to the level of the gray level of the green is specifically:
  • the first weight is 0.9 and the second weight is 0.1;
  • the first weight is 0.5 and the second weight is 0.5;
  • the first weight is 1 and the second weight is 0.
  • the color coordinate of the red or blue target gray scale and the 0 gray scale color coordinate are the sum of the first product and the second product.
  • the invention brings about the following beneficial effects: in the method for calculating the brightness and chromaticity of the display panel provided by the present invention, the original gray scale data is first obtained, and then the green gray scale is adjusted with the green as the reference to make the brightness value of the pixel Match the standard gamma curve. Then use the green gray scale to match the red and blue color coordinates, determine the weight coefficient according to the green gray level, and then use the determined weight coefficient to calculate and record the red and blue target gray. The color coordinates of the order. Therefore, by using the adjustment calculation method provided by the embodiment of the invention, automatic adjustment of brightness and chromaticity can be realized, and the actual color characteristics of the low gray level can be maintained, and the color is changed according to the visual optimization, thereby solving the existing solution.
  • the brightness and chromaticity adjustment methods have technical problems with large offset.
  • Figure 1 is a schematic diagram of an ideal color point representation
  • Figure 2 is a schematic diagram of an ideal gamma performance
  • Figure 3 is a schematic diagram of the color point representation of the prior adjustment method
  • Figure 4 is a schematic illustration of the gamma representation of a prior art adjustment method
  • FIG. 5 is a flowchart of a method for calculating brightness and chromaticity of a display panel according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a gray scale coordinate system in an embodiment of the present invention.
  • Figure 7 is a schematic diagram showing the representation of color points in the embodiment of the present invention.
  • FIG. 8 is a schematic diagram of an adjustment system for brightness and chromaticity of a display panel according to an embodiment of the present invention.
  • the embodiment of the invention provides a spliced backplane of a strip display screen, and a strip display screen using the spliced back panel, which can assemble the back panel of the strip display screen in a splicing manner to reduce the strip display screen Cost of production.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • an embodiment of the present invention provides a method for calculating brightness and chromaticity of a display panel, including the following steps:
  • the linear interpolation method can also be used to obtain the original gray-scale data of 11 bits (8 bits), thereby obtaining finer original data.
  • S3 Match the color coordinates of red and blue with green gray scale. Specifically include:
  • S32 Obtain a color temperature approximation line according to the color coordinates of the 0 gray scale and the color coordinates of the target gray scale.
  • the 0 point in Fig. 6 is the color coordinate of the 0 gray scale
  • the P point is the color coordinate of the target gray scale.
  • the first distance dis1 between the color coordinates of the gray scale and the color coordinates of the target gray scale can be calculated.
  • the second distance dis2 between the color coordinates of the gray scale and the approximate line of the color temperature can be calculated.
  • the gray scale of the green is a low gray scale, for example, when the gray scale of the green is lower than 63 gray scale, the first weight A1 is 0.9, and the second weight A2 is 0.1.
  • the gray scale of the green is a medium-low gray scale, for example, when the gray scale of the green is 64 to 127 gray scale, the first weight A1 is 0.5, and the second weight A2 is 0.5;
  • the gray scale of the green is medium-high gray scale, for example, when the gray scale of the green is higher than 128 gray scale, the first weight A1 is 1, and the second weight A2 is 0.
  • S5 Calculate and record the color coordinates of the target gray scales of red and blue using the determined weight coefficients.
  • the first product of the first weight and the first distance is calculated, that is, A1 ⁇ dis1; and the second product of the second weight and the second distance is calculated, that is, A2 ⁇ dis2.
  • the color coordinates of the target grayscale are The color temperature is approximated on the line so that the color coordinates of the target gray level can be calculated.
  • the result of the final adjustment calculation in the actual performance, the color point of the low gray level does not have a very uniform change, but the human eye vision can be satisfied.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • an embodiment of the present invention provides an adjustment system for brightness and chromaticity of a display panel, including an optical measuring device 1, a computer 2, and a communication panel 3.
  • the optical measuring device 1 is used to acquire raw gray scale data from the display device 4. After acquiring the 8-bit (8-bit) original gray-scale data of the display device 4, linear interpolation can also be used to obtain 11-bit (8-bit) original gray-scale data, thereby obtaining finer original data.
  • the computer 2 is connected to the display device 4 via the communication panel 3.
  • Computer 2 is used to adjust the gray level of the green so that the brightness value of the pixel matches the standard gamma curve.
  • Computer 2 only adjusts the 0 to 255 gray levels of the green sub-pixels to match the brightness of the pixels to the standard gamma curve.
  • Computer 2 also uses green grayscale to match the color coordinates of red and blue.
  • the computer 2 first calculates the color coordinates (x temp , y temp ) of the temporary gray scale, as shown in Fig. 6, the temp point is the color coordinate of the temporary gray scale. Then, according to the color coordinates of the 0 gray scale and the color coordinates of the target gray scale, the color temperature approximation line is obtained, and the 0 point in FIG. 6 is the color coordinate of the 0 gray scale, and the P point is the color coordinate of the target gray scale.
  • the first distance dis1 between the color coordinates of the temporary gray scale and the color coordinates of the target gray scale is calculated, and the color coordinate and color temperature of the gray scale are calculated by using the calculation formula of the point-to-straight distance.
  • the second distance dis2 between the lines is approximated.
  • the computer 2 also determines the weighting factor based on the level of the gray level of the green.
  • the gray scale of the green is a low gray scale, for example, when the gray scale of the green is lower than 63 gray scale, the first weight A1 is 0.9, and the second weight A2 is 0.1.
  • the gray scale of the green is a medium-low gray scale, for example, when the gray scale of the green is 64 to 127 gray scale, the first weight A1 is 0.5, the second weight A2 is 0.5; when the green gray scale is medium-high gray scale, For example, when the gray scale of the green is higher than 128 gray scale, the first weight A1 is 1, and the second weight A2 is 0.
  • the computer 2 uses the determined weight coefficients to calculate and record the color coordinates of the red and blue target gray levels. Specifically, the first product of the first weight and the first distance is calculated, that is, A1 ⁇ dis1; and the second product of the second weight and the second distance is calculated, that is, A2 ⁇ dis2.
  • the color coordinates of the target gray scale are near the color temperature It is like a line, so that the color coordinates of the target gray level can be calculated.
  • the result of the final adjustment calculation in the actual performance, the color point of the low gray level does not have a very uniform change, but the human eye vision can be satisfied.
  • the adjustment system provided by the embodiment of the invention, automatic adjustment of brightness and chromaticity can be realized, and the actual color characteristics of the low gray level can be maintained, and the color is changed according to the visual optimization, thereby solving the existing brightness.
  • the chromaticity adjustment method has a technical problem of a large offset.
  • the system for adjusting the brightness and chromaticity of the display panel provided by the embodiment of the present invention has the same technical features as the method for calculating the brightness and chromaticity of the display panel provided by the above embodiments, so that the same technical problem can be solved. The same technical effect.

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Abstract

一种显示面板的亮度和色度的调节计算方法。该方法包括：获取原始灰阶数据（S1）；调整绿色的灰阶，使像素的亮度值匹配标准gamma曲线（S2）；利用绿色的灰阶，对红色和蓝色的色坐标进行匹配（S3）；根据绿色的灰阶的层次，确定权重系数（S4）；利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标（S5）。

Description

显示面板的亮度和色度的调节计算方法及***
本申请要求享有2016年9月6日提交的名称为“显示面板的亮度和色度的调节计算方法及***”的中国专利申请CN201610804644.5的优先权，其全部内容通过引用并入本文中。
技术领域
本发明涉及显示技术领域，具体的说，涉及一种显示面板的亮度和色度的调节计算方法。
背景技术
随着显示技术的发展，液晶显示屏已经成为最为常见的显示装置。液晶显示屏具有高空间利用率、低功耗、无辐射以及低电磁干扰等优越特性，因此在电视、手机、平板电脑等信息沟通工具中得到广泛使用。
液晶显示面板的原始光学特性存在一定缺陷，例如0灰阶至255灰阶的色点不一致，存在色偏现象；又如0灰阶至255灰阶的亮度变化不符合人眼的观察特征。所以需要对显示面板进行光学调整必不可少，一般光学调整都需要反复调节，以人眼判断是否达到良好的显示效果。
图1是理想的色点表现，其中只有0灰阶的色点存在偏移，其余灰阶都集中在一点。图2是理想的gamma表现，可以看出，绝大部分灰阶的亮度梯度都在gamma 2.2。
现有的亮度和色度调节方法为：先进行gamma绑点调节，然后测量0灰阶至255灰阶的原始数据，再将原始数据内插为更精细的数据。确定目标亮度后，以固定色坐标进行最佳值寻找，亮度达标后，色点经常会存在偏差。然而低灰阶必然存在色坐标的渐变过程，当采用同样方式处理时，找到的色点存在偏差，然后还需要手动进行调整低灰阶。
在实际的调节中，在低灰阶的亮度和色度很难同时满足。图3是采用现有的调节方法的色点表现，可以看出，在低灰阶存在偏移。图4是采用现有的调节方法的gamma表现，可以看出，gamma偏移也比较明显。因此，现有的亮度和色度调节方法存在偏移较大的技术问题。
发明内容
本发明的目的在于提供一种显示面板的亮度和色度的调节计算方法，以解决现有的亮度和色度调节方法存在偏移较大的技术问题。
本发明提供一种显示面板的亮度和色度的调节计算方法，包括：
获取原始灰阶数据；
调整绿色的灰阶，使像素的亮度值匹配标准gamma曲线；
利用绿色的灰阶，对红色和蓝色的色坐标进行匹配；
根据绿色的灰阶的层次，确定权重系数；
利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标。
优选的是，所述获取原始数据，具体为：
利用线性内插法，获得11位的原始灰阶数据。
优选的是，对红色和蓝色的色坐标进行匹配，具体为：
计算临时灰阶的色坐标；
根据0灰阶的色坐标和目标灰阶的色坐标，获得色温近似线；
计算所述临时灰阶的色坐标与目标灰阶的色坐标之间的第一距离；
计算所述临时灰阶的色坐标与所述色温近似线之间的第二距离。
进一步的是，所述根据绿色的灰阶的层次，确定权重系数，具体为：
当绿色的灰阶为低灰阶时，第一权重为0.9，第二权重为0.1；
当绿色的灰阶为中低灰阶时，第一权重为0.5，第二权重为0.5；
当绿色的灰阶为中高灰阶时，第一权重为1，第二权重为0。
进一步的是，所述利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标，具体为：
计算所述第一权重与所述第一距离的第一乘积；
计算所述第二权重与所述第二距离的第二乘积；
红色或蓝色的目标灰阶的色坐标与0灰阶色坐标的间距为所述第一乘积与所述第二乘积之和。
本发明还提供一种显示面板的亮度和色度的调节***，包括光学测量设备、计算机和通信板块；
所述光学测量设备用于从显示装置中获取原始灰阶数据；
所述计算机通过所述通信板块连接显示装置；
所述计算机用于调整绿色的灰阶，使像素的亮度值匹配标准gamma曲线；利用绿色的灰阶，对红色和蓝色的色坐标进行匹配；根据绿色的灰阶的层次，确定权重系数；利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标。
优选的是，所述光学测量设备具体用于，利用线性内插法，获得11位的原始灰阶数据。
优选的是，所述利用绿色的灰阶，对红色和蓝色的色坐标进行匹配，具体为：
计算临时灰阶的色坐标；
根据0灰阶的色坐标和目标灰阶的色坐标，获得色温近似线；
计算所述临时灰阶的色坐标与目标灰阶的色坐标之间的第一距离；
计算所述临时灰阶的色坐标与所述色温近似线之间的第二距离。
进一步的是，所述根据绿色的灰阶的层次，确定权重系数，具体为：
当绿色的灰阶为低灰阶时，第一权重为0.9，第二权重为0.1；
当绿色的灰阶为中低灰阶时，第一权重为0.5，第二权重为0.5；
当绿色的灰阶为中高灰阶时，第一权重为1，第二权重为0。
进一步的是，所述利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标，具体为：
计算所述第一权重与所述第一距离的第一乘积；
计算所述第二权重与所述第二距离的第二乘积；
红色或蓝色的目标灰阶的色坐标与0灰阶色坐标的间距为所述第一乘积与所述第二乘积之和。
本发明带来了以下有益效果：本发明提供的显示面板的亮度和色度的调节计算方法中，首先获取原始灰阶数据，再以绿色作为基准，调整绿色的灰阶，使像素的亮度值匹配标准gamma曲线。然后利用绿色的灰阶，对红色和蓝色的色坐标进行匹配，根据绿色的灰阶的层次，确定权重系数，再利用所确定的权重系数，计算并记录红色和蓝色的目标灰 阶的色坐标。因此，采用本发明实施例提供的调节计算方法，能够实现亮度和色度的自动化调节，并且能够保持低灰阶的实际颜色特性，使颜色按照视觉最佳化变化，从而解决了解决现有的亮度和色度调节方法存在偏移较大的技术问题。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分的从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
为了更清楚的说明本发明实施例中的技术方案，下面将对实施例描述中所需要的附图做简单的介绍：
图1是理想的色点表现的示意图；
图2是理想的gamma表现的示意图；
图3是现有的调节方法的色点表现的示意图；
图4是现有的调节方法的gamma表现的示意图；
图5是本发明实施例提供的显示面板的亮度和色度的调节计算方法的流程图；
图6是本发明实施例中灰阶坐标系的示意图；
图7是本发明实施例中色点表现的示意图；
图8是本发明实施例提供的显示面板的亮度和色度的调节***的示意图。
具体实施方式
以下将结合附图及实施例来详细说明本发明的实施方式，借此对本发明如何应用技术手段来解决技术问题，并达成技术效果的实现过程能充分理解并据以实施。需要说明的是，只要不构成冲突，本发明中的各个实施例以及各实施例中的各个特征可以相互结合，所形成的技术方案均在本发明的保护范围之内。
本发明实施例提供一种条形显示屏的拼接式背板，以及使用该拼接式背板的条形显示屏，能够以拼接方式组装条形显示屏的背板，以降低条形显示屏的生产成本。
实施例一：
如图5所示，本发明实施例提供一种显示面板的亮度和色度的调节计算方法，包括以下步骤：
S1：获取原始灰阶数据。
具体的，获取显示装置的8位(8bit)的原始灰阶数据后，还可以利用线性内插法，获得11位(8bit)的原始灰阶数据，从而得到更精细的原始数据。
S2：调整绿色的灰阶，使像素的亮度值匹配标准gamma曲线。
具体的，只调节绿色子像素的0至255灰阶，使像素的亮度与标准gamma曲线相匹配。
S3：利用绿色的灰阶，对红色和蓝色的色坐标进行匹配。具体包括：
S31：计算临时灰阶的色坐标(xtemp，ytemp)，如图6所示，temp点即为临时灰阶的色坐标。
S32：根据0灰阶的色坐标和目标灰阶的色坐标，获得色温近似线。图6中的0点即为0灰阶的色坐标，P点即为目标灰阶的色坐标。
S33：计算临时灰阶的色坐标与目标灰阶的色坐标之间的第一距离dis1。
利用两点间距离的计算公式，即可计算出灰阶的色坐标与目标灰阶的色坐标之间的第一距离dis1。
S34：计算临时灰阶的色坐标与色温近似线之间的第二距离dis2。
利用点到直线距离的计算公式，即可计算出灰阶的色坐标与色温近似线之间的第二距离dis2。
S4：根据绿色的灰阶的层次，确定权重系数。
当绿色的灰阶为低灰阶时，比如绿色的灰阶低于63灰阶时，第一权重A1为0.9，第二权重A2为0.1。
当绿色的灰阶为中低灰阶时，比如绿色的灰阶在64至127灰阶时，第一权重A1为0.5，第二权重A2为0.5；
当绿色的灰阶为中高灰阶时，比如绿色的灰阶高于128灰阶时，第一权重A1为1，第二权重A2为0。
S5：利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标。
具体的，计算第一权重与第一距离的第一乘积，即A1×dis1；再计算第二权重与第二距离的第二乘积，即A2×dis2。红色或蓝色的目标灰阶的色坐标与0灰阶色坐标的间距为第一乘积与第二乘积之和，即dis＝A1×dis1+A2×dis2。并且，目标灰阶的色坐标在 色温近似线上，从而就能够计算出目标灰阶的色坐标。
如图7所示，本发明实施例中最后调节计算的结果，在实际表现中，低灰阶的色点没有非常均匀的变化，但已经可以满足人眼视觉。
因此，采用本发明实施例提供的调节计算方法，能够实现亮度和色度的自动化调节，并且能够保持低灰阶的实际颜色特性，使颜色按照视觉最佳化变化，从而解决了解决现有的亮度和色度调节方法存在偏移较大的技术问题。
实施例二：
如图8所示，本发明实施例提供一种显示面板的亮度和色度的调节***，包括光学测量设备1、计算机2和通信板块3。
光学测量设备1用于从显示装置4中获取原始灰阶数据。在获取显示装置4的8位(8bit)的原始灰阶数据后，还可以利用线性内插法，获得11位(8bit)的原始灰阶数据，从而得到更精细的原始数据。
计算机2通过通信板块3连接显示装置4。计算机2用于调整绿色的灰阶，使像素的亮度值匹配标准gamma曲线。计算机2只调节绿色子像素的0至255灰阶，使像素的亮度与标准gamma曲线相匹配。
计算机2还利用绿色的灰阶，对红色和蓝色的色坐标进行匹配。计算机2首先计算临时灰阶的色坐标(xtemp，ytemp)，如图6所示，temp点即为临时灰阶的色坐标。然后根据0灰阶的色坐标和目标灰阶的色坐标，获得色温近似线，图6中的0点即为0灰阶的色坐标，P点即为目标灰阶的色坐标。最后利用两点间距离的计算公式，计算临时灰阶的色坐标与目标灰阶的色坐标之间的第一距离dis1，并利用点到直线距离的计算公式，计算灰阶的色坐标与色温近似线之间的第二距离dis2。
计算机2还根据绿色的灰阶的层次，确定权重系数。当绿色的灰阶为低灰阶时，比如绿色的灰阶低于63灰阶时，第一权重A1为0.9，第二权重A2为0.1。当绿色的灰阶为中低灰阶时，比如绿色的灰阶在64至127灰阶时，第一权重A1为0.5，第二权重A2为0.5；当绿色的灰阶为中高灰阶时，比如绿色的灰阶高于128灰阶时，第一权重A1为1，第二权重A2为0。
计算机2再利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标。具体的，计算第一权重与第一距离的第一乘积，即A1×dis1；再计算第二权重与第二距离的第二乘积，即A2×dis2。红色或蓝色的目标灰阶的色坐标与0灰阶色坐标的间距为第一乘积与第二乘积之和，即dis＝A1×dis1+A2×dis2。并且，目标灰阶的色坐标在色温近 似线上，从而就能够计算出目标灰阶的色坐标。
如图7所示，本发明实施例中最后调节计算的结果，在实际表现中，低灰阶的色点没有非常均匀的变化，但已经可以满足人眼视觉。
因此，采用本发明实施例提供的调节***，能够实现亮度和色度的自动化调节，并且能够保持低灰阶的实际颜色特性，使颜色按照视觉最佳化变化，从而解决了解决现有的亮度和色度调节方法存在偏移较大的技术问题。
本发明实施例提供的显示面板的亮度和色度的调节***，与上述实施例提供的显示面板的亮度和色度的调节计算方法具有相同的技术特征，所以也能解决相同的技术问题，达到相同的技术效果。
虽然本发明所公开的实施方式如上，但所述的内容只是为了便于理解本发明而采用的实施方式，并非用以限定本发明。任何本发明所属技术领域内的技术人员，在不脱离本发明所公开的精神和范围的前提下，可以在实施的形式上及细节上作任何的修改与变化，但本发明的专利保护范围，仍须以所附的权利要求书所界定的范围为准。

Claims (10)

  1. 一种显示面板的亮度和色度的调节计算方法，包括：
    获取原始灰阶数据；
    调整绿色的灰阶，使像素的亮度值匹配标准gamma曲线；
    利用绿色的灰阶，对红色和蓝色的色坐标进行匹配；
    根据绿色的灰阶的层次，确定权重系数；
    利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标。
  2. 根据权利要求1所述的方法，其中，所述获取原始数据，具体为：
    利用线性内插法，获得11位的原始灰阶数据。
  3. 根据权利要求1所述的方法，其中，所述利用绿色的灰阶，对红色和蓝色的色坐标进行匹配，具体为：
    计算临时灰阶的色坐标；
    根据0灰阶的色坐标和目标灰阶的色坐标，获得色温近似线；
    计算所述临时灰阶的色坐标与目标灰阶的色坐标之间的第一距离；
    计算所述临时灰阶的色坐标与所述色温近似线之间的第二距离。
  4. 根据权利要求3所述的方法，其中，所述根据绿色的灰阶的层次，确定权重系数，具体为：
    当绿色的灰阶为低灰阶时，第一权重为0.9，第二权重为0.1；
    当绿色的灰阶为中低灰阶时，第一权重为0.5，第二权重为0.5；
    当绿色的灰阶为中高灰阶时，第一权重为1，第二权重为0。
  5. 根据权利要求4所述的方法，其中，所述利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标，具体为：
    计算所述第一权重与所述第一距离的第一乘积；
    计算所述第二权重与所述第二距离的第二乘积；
    红色或蓝色的目标灰阶的色坐标与0灰阶色坐标的间距为所述第一乘积与所述第二乘积之和。
  6. 一种显示面板的亮度和色度的调节***，包括光学测量设备、计算机和通信板块；
    所述光学测量设备用于从显示装置中获取原始灰阶数据；
    所述计算机通过所述通信板块连接显示装置；
    所述计算机用于调整绿色的灰阶，使像素的亮度值匹配标准gamma曲线；利用绿色的灰阶，对红色和蓝色的色坐标进行匹配；根据绿色的灰阶的层次，确定权重系数；利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标。
  7. 根据权利要求6所述的***，其中，所述光学测量设备具体用于，利用线性内插法，获得11位的原始灰阶数据。
  8. 根据权利要求6所述的***，其中，所述利用绿色的灰阶，对红色和蓝色的色坐标进行匹配，具体为：
    计算临时灰阶的色坐标；
    根据0灰阶的色坐标和目标灰阶的色坐标，获得色温近似线；
    计算所述临时灰阶的色坐标与目标灰阶的色坐标之间的第一距离；
    计算所述临时灰阶的色坐标与所述色温近似线之间的第二距离。
  9. 根据权利要求8所述的***，其中，所述根据绿色的灰阶的层次，确定权重系数，具体为：
    当绿色的灰阶为低灰阶时，第一权重为0.9，第二权重为0.1；
    当绿色的灰阶为中低灰阶时，第一权重为0.5，第二权重为0.5；
    当绿色的灰阶为中高灰阶时，第一权重为1，第二权重为0。
  10. 根据权利要求9所述的***，其中，所述利用所确定的权重系数，计算并记录红色和蓝色的目标灰阶的色坐标，具体为：
    计算所述第一权重与所述第一距离的第一乘积；
    计算所述第二权重与所述第二距离的第二乘积；
    红色或蓝色的目标灰阶的色坐标与0灰阶色坐标的间距为所述第一乘积与所述第二乘积之和。
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