WO2022027761A1 - 一种液晶显示面板断层现象的改善方法、装置及显示面板 - Google Patents

一种液晶显示面板断层现象的改善方法、装置及显示面板 Download PDF

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Publication number
WO2022027761A1
WO2022027761A1 PCT/CN2020/113440 CN2020113440W WO2022027761A1 WO 2022027761 A1 WO2022027761 A1 WO 2022027761A1 CN 2020113440 W CN2020113440 W CN 2020113440W WO 2022027761 A1 WO2022027761 A1 WO 2022027761A1
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Prior art keywords
fault
brightness
difference
tomographic
display panel
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PCT/CN2020/113440
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English (en)
French (fr)
Inventor
海博
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深圳市华星光电半导体显示技术有限公司
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Priority to US17/046,010 priority Critical patent/US20230154425A1/en
Publication of WO2022027761A1 publication Critical patent/WO2022027761A1/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
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/10—Dealing with defective 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
    • 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 application relates to the field of display technology, and in particular, to a method and device for improving the fracture phenomenon of a liquid crystal display panel, and a display panel.
  • Liquid crystal display devices occupy an important position in the display field due to their advantages such as lightness and thinness and low radiation.
  • the display screen of the liquid crystal display panel is composed of multiple pixels, and each pixel includes three sub-pixels of red, green and blue.
  • the brightness information of the three sub-pixels that is, the RGB grayscale value
  • the brightness of each sub-pixel can be controlled. Control the grayscale value of each sub-pixel, and mix the desired display color to display the color picture.
  • the liquid crystal display panel sometimes has a screen fault phenomenon when playing a screen, which causes the display panel to display abnormally and affects the visual effect of the human eye.
  • the present application provides a method, device and display panel for improving the fracture phenomenon of a liquid crystal display panel, so as to improve the fracture phenomenon of a display screen.
  • the present application provides a method for improving the tomographic phenomenon of a liquid crystal display panel, including:
  • the fault location includes at least two fault regions
  • the brightness of the corresponding fault region is adjusted based on the grayscale value of the fault region to reduce the brightness difference between the fault regions.
  • the sub-pixel grayscale values of each tomographic region are detected to obtain the corresponding grayscale values of each tomographic region.
  • the performing brightness processing on the corresponding tomographic region based on the grayscale value of the tomographic region includes:
  • the brightness difference between the fault regions decreases after the brightness processing, it is determined that there is a difference in brightness between the fault regions before the processing, including:
  • the adjusting the brightness of the corresponding fault region based on the grayscale value of the fault region to reduce the brightness difference between the fault regions includes:
  • the adjusting the brightness of the corresponding fault region based on the grayscale value of the fault region to reduce the brightness difference between the fault regions includes:
  • a ratio is obtained by dividing the maximum brightness difference between the two adjacent fault areas after the brightness adjustment and the maximum brightness difference between the two adjacent fault areas before the brightness adjustment;
  • the luminance processing is accomplished by white balance processing.
  • the present application provides a device for improving the tomographic phenomenon of a liquid crystal display panel, including:
  • an acquisition unit configured to acquire a fault location of the display panel, wherein the fault location includes at least two fault regions;
  • a processing unit configured to perform brightness processing on the corresponding tomographic region based on the grayscale value of the tomographic region
  • a determining unit configured to determine that there is a difference in brightness between the tomographic regions before the processing if the brightness difference between the tomographic regions decreases after the brightness processing
  • An adjustment unit configured to adjust the brightness of the corresponding tomographic region based on the grayscale value of the tomographic region if there is a difference in brightness between the tomographic regions, so as to reduce the brightness difference between the tomographic regions.
  • the improvement device further includes a detection unit, and the detection unit is configured to detect the sub-pixel grayscale values of each tomographic region, so as to obtain the corresponding grayscale value of each tomographic region.
  • the processing unit includes a first determination subunit and a first adjustment subunit
  • the first determining subunit is configured to determine the brightness difference of each fault region according to the grayscale value corresponding to each fault region;
  • the first adjustment subunit is used for increasing or decreasing the brightness of each fault region according to the brightness difference of each fault region.
  • the determining unit includes a second determining subunit and a first determining subunit
  • the second determining subunit is used to determine whether the fault phenomenon in the fault area is eliminated by increasing or reducing the brightness of each fault area;
  • the first judging subunit is used for judging whether the brightness difference between the fault areas is reduced based on whether the fault phenomenon in the fault areas is eliminated.
  • the adjustment unit includes an acquisition subunit and a second adjustment subunit
  • the obtaining subunit is used to obtain the difference of the gray scale value of the fault region
  • the second adjustment subunit is used for reducing the difference in brightness of each tomographic region based on the difference in grayscale values of the tomographic regions, so as to reduce the difference in brightness between the tomographic regions.
  • the adjustment unit further includes a second determination subunit and a third determination subunit,
  • the second judging subunit is used to divide the maximum brightness difference between the two adjacent fault areas after the brightness adjustment and the maximum brightness difference between the two adjacent fault areas before the brightness adjustment to obtain a ratio, to determine whether the ratio is less than or equal to 50%;
  • the third determination subunit is configured to determine the elimination of the fault phenomenon according to the ratio less than or equal to 50%.
  • the present application further provides a liquid crystal display panel.
  • the liquid crystal display panel is manufactured using the method for improving the fault phenomenon described in the first aspect, and the improving method includes:
  • the fault location includes at least two fault regions
  • the brightness of the corresponding fault region is adjusted based on the grayscale value of the fault region to reduce the brightness difference between the fault regions.
  • the sub-pixel grayscale values of each tomographic region are detected to obtain the corresponding grayscale values of each tomographic region.
  • the performing brightness processing on the corresponding tomographic region based on the grayscale value of the tomographic region includes:
  • the brightness difference between the fault regions decreases after the brightness processing, it is determined that there is a difference in brightness between the fault regions before the processing, including:
  • the adjusting the brightness of the corresponding fault region based on the grayscale value of the fault region to reduce the brightness difference between the fault regions includes:
  • the adjusting the brightness of the corresponding fault region based on the grayscale value of the fault region to reduce the brightness difference between the fault regions includes:
  • the ratio is obtained by dividing the maximum brightness difference between the two adjacent fault areas after the brightness adjustment and the maximum brightness difference between the two adjacent fault areas before the brightness adjustment;
  • the luminance processing is accomplished by white balance processing.
  • the present application obtains the fault position of the display panel, and performs brightness processing on the fault area included in the fault position based on the gray scale value. If the fault phenomenon is eliminated after the brightness processing, it is determined that there is a difference in brightness between fault areas, and the brightness of the fault position is adjusted to reduce The brightness difference between the fault areas improves the display brightness uniformity of the display panel, improves the fault phenomenon of the liquid crystal display panel, and improves the display quality.
  • FIG. 1 is a flow chart illustrating a method for improving the fault phenomenon of a display panel.
  • FIG. 2 is a schematic diagram of a display screen showing a tomographic phenomenon on a display panel.
  • FIG. 3( a ) is a graph showing the normalized display panel brightness value curve of each gray scale actually measured when facing up and looking at 45° strabismus.
  • FIG. 3( b ) is a normalized display panel brightness value curve showing the actual measured low gray scale when looking straight ahead and 45° strabismus.
  • FIG. 4 is a block diagram showing a structure of an apparatus for improving the fracture phenomenon of a liquid crystal display panel.
  • the present application provides a method for improving the fracture phenomenon of a liquid crystal display panel, as shown in FIG. 1 , including steps 101 to 104:
  • Step 101 Acquire a fault location of the display panel, wherein the fault location includes at least two fault regions.
  • the display panel includes a plurality of pixels, and each pixel includes a red sub-pixel (R), a green sub-pixel (G), and a blue sub-pixel (B).
  • the highest grayscale number of the display device is n, where 0 ⁇ n ⁇ 255, 0 represents the lowest grayscale of the display panel, 255 represents the highest grayscale of the display panel, and the grayscale and brightness of each pixel of the display screen
  • the relationship generally conforms to the gamma curve represented by formula (1):
  • L is brightness
  • gray is gray scale
  • ⁇ is generally 2.2, but not limited to 2.2.
  • the display brightness of each pixel of the display screen is a mixture of the display brightness of its corresponding sub-pixels.
  • the grayscale values of the red sub-pixel (R), green sub-pixel (G), and blue sub-pixel (B) are all 0, the picture displayed by the display panel is black.
  • the grayscale values of (G) and the blue sub-pixel (B) are all 255, the display screen of the display panel is white.
  • the sub-pixel of each pixel is provided with a gray-scale value required for display to control the brightness of the sub-pixel, thereby making the sub-pixel display the corresponding color.
  • the display The panel correspondingly displays a display image with high brightness uniformity. But sometimes bright streaks appear on the display screen, and the bright streaks make the displayed screen appear relatively bright and relatively dark areas. This phenomenon is a fault phenomenon.
  • Bright fringes divide the display screen into relatively bright and relatively dark areas, which we define as the fault area, and the location of the fault area is defined as the fault location.
  • a bright pattern 110 appears on the display panel 100, and the display area is divided into three parts, which are the first fault area 121 and the second fault area. 122 , the third fault region 123 , the position of the first fault region 121 , the second fault region 122 and the third fault region 123 on the display panel 100 is the fault position 120 .
  • the step of acquiring the fault location of the display panel further includes:
  • the sub-pixel grayscale values of each tomographic region are detected to obtain the corresponding grayscale values of each tomographic region.
  • the gray-scale value of each tomographic region can be acquired by using detection units such as Matlab or PhotoShop, which is not particularly limited here. Take the use of Matlab as an example, select the tomographic area to be detected, use Matlab to open the tomographic area screen to be detected, check the sub-pixel gray-scale values of each pixel at the target, and obtain multiple pixel gray-scale values of the to-be-detected tomographic area , please refer to the prior art for specific steps, which will not be repeated here.
  • Step 102 Perform brightness processing on the corresponding tomographic region based on the grayscale value of the tomographic region.
  • the brightness processing refers to using a brightness processing unit to adjust the brightness of the corresponding tomographic region according to the brightness difference between the tomographic regions.
  • the brightness processing unit may be a white balance processing unit, or may be any other unit capable of adjusting brightness in the prior art, which is not particularly limited in this application.
  • the brightness processing can be achieved by white balance processing.
  • the white balance processing refers to using a white balance processing unit to adjust the brightness of the corresponding tomographic region according to the brightness difference between the tomographic regions.
  • the white balance processing unit may be a logic board (timing controllerchip, Tcon board), adjust the red sub-pixel (R), green sub-pixel (G) and blue sub-pixel (B) components corresponding to the pixel by inputting the original grayscale value of the pixel in the tomographic area to the white balance processing unit Or proportional relationship, a new grayscale value of the pixel is obtained, which is the output grayscale value, and the output grayscale value corresponds to a new brightness value to achieve the purpose of increasing or decreasing the brightness of the corresponding fault area.
  • the brightness of the corresponding fault area increases or decreases, it is determined whether the fault phenomenon at the fault location is eliminated.
  • performing brightness processing on the corresponding tomographic region based on the grayscale value of the tomographic region including:
  • the white balance processing unit is used to adjust the brightness of each tomographic region, including raising or lowering the brightness of the tomographic region.
  • the brightness of the fault area mentioned in this application refers to the average value of the brightness values corresponding to multiple pixels in the fault area. It will not be repeated elsewhere.
  • Step 103 If after the brightness processing, the brightness difference between the tomographic regions decreases, it is determined that there is a difference in brightness between the tomographic regions before the processing.
  • the brightness processing unit is between the fault areas before processing.
  • the brightness difference between fault areas may refer to adjacent fault areas or between non-adjacent fault areas.
  • the difference in brightness means that there is a difference in brightness between the fault regions, and the difference in brightness causes bright streaks to appear on the display panel.
  • FIG. 3( a ) is a normalized display panel brightness value curve (Gamma curve of each gray level) of each gray level actually measured when looking at the front view and 45° oblique view.
  • FIG. 3( b ) is a normalized display panel brightness value curve (low gray-scale Gamma curve) showing the actually measured low grayscales when looking straight and 45° strabismus.
  • the abscissa represents each gray level, and the ordinate represents the ratio of the brightness value corresponding to each gray level to the brightness value corresponding to the highest gray level 255 (also called normalized brightness).
  • the low grayscale may be 0 to 50 grayscale
  • the middle grayscale may be 50 to 200
  • the high grayscale may be 201 to 255.
  • the present application does not limit the specific demarcation points of the low gray scale, the middle gray scale and the high gray scale, which may be determined according to specific circumstances.
  • the slope of the low grayscale Gamma curve in strabismus is larger than that in emmetropia, and the rate of normalized brightness increases faster, and the brightness difference caused by the same grayscale difference value is larger. Therefore, it is easier to perceive the difference in brightness when squinting at a low gray level, and it is easier to detect the tomographic phenomenon of the display screen. This also proves that the difference in brightness between the aforementioned fault regions will lead to a fault phenomenon in the display panel.
  • the brightness difference between the fault regions decreases after the brightness processing, it is determined that there is a difference in brightness between the fault regions before the processing, including:
  • Step 104 If there is a difference in brightness between the fault regions, adjust the brightness of the corresponding fault region based on the grayscale value of the fault region to reduce the brightness difference between the fault regions.
  • the brightness of the corresponding fault area is adjusted based on the grayscale value of the fault areas.
  • the corresponding fault area may be one fault area, or two fault areas, or all fault areas, which are not limited here.
  • adjusting the brightness of the corresponding fault region based on the grayscale value of the fault region includes:
  • the brightness difference between the fault areas is reduced to reduce the brightness difference between the fault areas.
  • a logic board (timing controller chip, Tcon board) is used to adjust the brightness of the fault region, and based on the grayscale value of the pixels in each fault region, the brightness value of each fault region is increased or decreased, so as to reduce the brightness difference between the fault regions value to eliminate bright streaks in the display.
  • the brightness adjustment unit in the fault area can also be a core board (System on a Chip, SOC board), etc., no restrictions are made here.
  • adjusting the brightness of the corresponding fault region based on the grayscale value of the fault region to reduce the brightness difference between the fault regions includes:
  • a ratio is obtained by dividing the maximum brightness difference between the two adjacent fault regions after the brightness adjustment and the maximum brightness difference between the two adjacent fault regions before the brightness adjustment.
  • the reduction of the brightness difference is also different.
  • the test shows that the maximum brightness difference between the two adjacent fault areas after adjustment is less than or equal to the adjustment.
  • the maximum brightness difference between the two adjacent fault areas is 50%, the fault phenomenon of the display panel is eliminated.
  • the brightness difference between the first fault area 121 and the second fault area 122 is the first difference value.
  • the luminance difference between a fault area 121 and a second fault area 122 is a second difference, and when the ratio of the second difference to the first difference is less than or equal to 50%, the first fault area 121 and the first The fault phenomenon of the second fault region 122 is eliminated.
  • the fault area included in the fault position is subjected to brightness processing, such as white balance processing, based on the gray scale value. If it is reduced, it is determined that there is a difference in the brightness between the fault areas, adjust the brightness of the fault position, reduce the brightness difference between the fault areas, improve the display brightness uniformity of the display panel, improve the fault phenomenon of the liquid crystal display panel, and improve the Display quality.
  • brightness processing such as white balance processing
  • FIG. 4 is a structural block diagram of the device 10 .
  • the improvement device 10 includes: an acquisition unit 11 , a processing unit 12 , a determination unit 13 and an adjustment unit 14 .
  • the acquiring unit 11 is configured to acquire a fault location of the display panel, wherein the fault location includes at least two fault regions.
  • the processing unit 12 is configured to perform brightness processing on the corresponding tomographic region based on the grayscale value of the tomographic region.
  • the determining unit 13 is configured to determine that there is a difference in brightness between the tomographic regions before the processing if the brightness difference between the tomographic regions decreases after the brightness processing.
  • the adjusting unit 14 is configured to adjust the brightness of the corresponding tomographic region based on the grayscale value of the tomographic region if there is a difference in brightness between the tomographic regions to reduce the brightness difference between the tomographic regions.
  • the improvement device 10 further includes a detection unit: the detection unit is configured to detect the sub-pixel grayscale values of each tomographic region, so as to obtain the corresponding grayscale value of each tomographic region.
  • the processing unit 12 includes a first determination subunit and a first adjustment subunit:
  • the first determining subunit is configured to determine the brightness difference of each tomographic region according to the corresponding grayscale value of each of the tomographic regions.
  • the first adjustment subunit is used for increasing or decreasing the brightness of each fault region according to the brightness difference of each fault region.
  • the determining unit 13 includes a second determining subunit and a first determining subunit:
  • the second determining subunit is used for determining whether the tomographic phenomenon in the fault region is eliminated by increasing or decreasing the brightness of each fault region.
  • the first judging subunit is used for judging whether the brightness difference between the fault areas is reduced based on whether the fault phenomenon in the fault areas is eliminated.
  • the adjustment unit 14 may include an acquisition subunit and a second adjustment subunit:
  • the obtaining subunit is used to obtain the difference of the gray scale values of the tomographic region.
  • the second adjustment subunit is used for reducing the difference in brightness of each tomographic region based on the difference in grayscale values of the tomographic regions, so as to reduce the difference in brightness between the tomographic regions.
  • the adjustment unit 14 may further include a second determination subunit and a third determination subunit:
  • the second judging subunit is used for judging that the maximum brightness difference between the two adjacent fault regions after the brightness adjustment is divided by the maximum brightness difference between the two adjacent fault regions before the brightness adjustment. Whether the ratio is less than or equal to 50%.
  • the third determining subunit is configured to determine that the fault phenomenon is eliminated according to the ratio being less than or equal to 50%.
  • the device for improving the tomographic phenomenon of the liquid crystal display panel includes an acquisition unit, which acquires the tomographic position of the display panel; a processing unit, which performs brightness processing on the corresponding tomographic area based on the grayscale value of the tomographic area; After that, the brightness difference between the fault areas decreases, it is determined that there is a difference in brightness between the fault areas before processing; the adjustment unit, if there is a difference in brightness between the fault areas, based on the gray level of the fault areas The order value adjusts the brightness of the corresponding fault region to reduce the brightness difference between the fault regions.
  • the use of the improving device eliminates the fracture phenomenon of the display panel, so that the brightness of the display panel is uniform, and the display effect of the display panel is improved.
  • the present application provides a liquid crystal display panel.
  • the liquid crystal display panel is manufactured using the method for improving the fault phenomenon.

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Abstract

本申请公开了一种液晶显示面板断层现象的改善方法、装置及显示面板，改善方法包括：获取断层位置，断层位置至少包括两个断层区域；对相应断层区域进行亮度处理；若亮度处理后，断层区域之间的亮度差值降低，则确定处理前断层区域之间的亮度存在差异；若断层区域之间的亮度存在差异，则降低断层区域之间的亮度差值。

Description

一种液晶显示面板断层现象的改善方法、装置及显示面板 技术领域
本申请涉及显示技术领域，尤其涉及一种液晶显示面板断层现象的改善方法、装置及显示面板。
 背景技术
液晶显示装置由于其体积轻薄以及辐射低等优势，在显示领域占据重要的位置。液晶显示面板的显示画面是由多个像素组成，每一个像素又包括红、绿、蓝三个子像素，通过输入三个子像素的亮度信息即RGB灰阶值便可以控制每个子像素的亮度，通过控制每个子像素的灰阶值，混合出所需要的显示的色彩来显示彩色画面。
然而液晶显示面板在播放画面有时会出现画面断层现象，使显示面板显示异常，影响人眼的视觉效果。
 技术问题
基于此，本申请提供一种液晶显示面板断层现象的改善方法、装置及显示面板，以改善显示画面的断层现象。
 技术解决方案
第一方面，本申请提供了一种液晶显示面板断层现象的改善方法，包括：
获取显示面板的断层位置，其中，所述断层位置至少包括两个断层区域；
基于所述断层区域的灰阶值对相应断层区域进行亮度处理；
若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异；
若所述断层区域之间的亮度存在差异，则基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值。
在一些实施方式中，所述获取显示面板的断层位置之后：
检测各个断层区域的子像素灰阶值，以获取各个断层区域相对应的灰阶值。
在一些实施方式中，所述基于所述断层区域的灰阶值对相应断层区域进行亮度处理，包括：
根据所述各个断层区域相对应的灰阶值，确定各个断层区域的亮度差异；
根据各个断层区域的亮度差异，升高或降低各个断层区域的亮度。
在一些实施方式中，所述若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异，包括：
通过升高或降低各个断层区域的亮度，确定断层区域的断层现象是否消除；
基于断层区域的断层现象是否消除，判断断层区域之间的亮度差值是否降低。
在一些实施方式中，所述基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值，包括：
基于所述断层区域的灰阶值的差异；
缩小各个断层区域的亮度差异，以降低断层区域之间的亮度差值。
在一些实施方式中，所述基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值，之后包括：
将亮度调整后所述相邻两个断层区域之间的最大亮度差值与亮度调整前所述相邻两个断层区域之间的最大亮度差值相除得到比值；
比值小于等于50%，则确定所述断层现象消除。
在一些实施方式中，所述亮度处理是通过白平衡处理实现的。
第二方面，本申请提供一种液晶显示面板断层现象的改善装置，包括：
获取单元，用于获取显示面板的断层位置，其中，所述断层位置至少包括两个断层区域；
处理单元，用于基于所述断层区域的灰阶值对相应断层区域进行亮度处理；
确定单元，用于若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异；
调整单元，用于若所述断层区域之间的亮度存在差异，则基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值。
在一些实施方式中，所述改善装置还包括检测单元，所述检测单元用于检测各个断层区域的子像素灰阶值，以获取各个断层区域相对应的灰阶值。
在一些实施方式中，所述处理单元包括第一确定子单元和第一调整子单元，
所述第一确定子单元用于根据所述各个断层区域相对应的灰阶值，确定各个断层区域的亮度差异；
所述第一调整子单元用于根据各个断层区域的亮度差异，升高或降低各个断层区域的亮度。
在一些实施方式中，所述确定单元包括第二确定子单元和第一判断子单元，
所述第二确定子单元用于通过升高或降低各个断层区域的亮度，确定断层区域的断层现象是否消除；
所述第一判断子单元用于基于断层区域的断层现象是否消除，判断断层区域之间的亮度差值是否降低。
在一些实施方式中，所述调整单元包括获取子单元和第二调整子单元，
所述获取子单元用于获取所述断层区域的灰阶值的差异；
所述第二调整子单元用于基于断层区域的灰阶值的差异，缩小各个断层区域的亮度差异，以降低断层区域之间的亮度差值。
在一些实施方式中，所述调整单元还包括第二判断子单元和第三确定子单元，
所述第二判断子单元用于将亮度调整后相邻两个断层区域之间的最大亮度差值与亮度调整前所述相邻两个断层区域之间的最大亮度差值相除，得到一比值，判断所述比值是否小于等于50%；
所述第三确定子单元用于根据所述比值小于等于50%确定所述断层现象消除。
第三方面，本申请还提供一种液晶显示面板，所述液晶显示面板使用了如第一方面所述断层现象的改善方法制程，所述改善方法包括：
获取显示面板的断层位置，其中，所述断层位置至少包括两个断层区域；
基于所述断层区域的灰阶值对相应断层区域进行亮度处理；
若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异；
若所述断层区域之间的亮度存在差异，则基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值。
在一些实施方式中，所述获取显示面板的断层位置之后：
检测各个断层区域的子像素灰阶值，以获取各个断层区域相对应的灰阶值。
在一些实施方式中，所述基于所述断层区域的灰阶值对相应断层区域进行亮度处理，包括：
根据所述各个断层区域相对应的灰阶值，确定各个断层区域的亮度差异；
根据各个断层区域的亮度差异，升高或降低各个断层区域的亮度。
在一些实施方式中，所述若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异，包括：
通过升高或降低各个断层区域的亮度，确定断层区域的断层现象是否消除；
基于断层区域的断层现象是否消除，判断断层区域之间的亮度差值是否降低。
在一些实施方式中，所述基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值，包括：
基于所述断层区域的灰阶值的差异；
缩小各个断层区域的亮度差异，以降低断层区域之间的亮度差值。
在一些实施方式中，所述基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值，之后包括：
将亮度调整后相邻两个断层区域之间的最大亮度差值与亮度调整前所述相邻两个断层区域之间的最大亮度差值相除得到比值；
比值小于等于50%，则确定所述断层现象消除。
在一些实施方式中，所述亮度处理是通过白平衡处理实现的。
 有益效果
本申请通过获取显示面板的断层位置，基于灰阶值对断层位置包括的断层区域进行亮度处理，若亮度处理后断层现象消除，确定断层区域之间的亮度存在差异，调整断层位置的亮度，降低断层区域之间的亮度差值，提高了显示面板的显示亮度均匀性，改善了液晶显示面板的断层现象，提升了显示品质。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为示出一种显示面板断层现象的改善方法流程图。
图2为示出显示面板出现断层现象的显示画面示意图。
图3（a）为示出正视和45°斜视时实际测得的各灰阶的归一化显示面板亮度值曲线。
图3（b）为示出正视和45°斜视时实际测得的低灰阶的归一化显示面板亮度值曲线。
图4为示出一种液晶显示面板断层现象的改善装置的结构框图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
第一方面，本申请提供了一种液晶显示面板断层现象的改善方法，如图1所示，包括步骤101～104：
步骤101：获取显示面板的断层位置，其中，所述断层位置至少包括两个断层区域。
显示面板包括多个像素，每个像素包括红色子像素（R）、绿色子像素（G）以及蓝色子像素（B）。显示装置的最高灰阶数为n，其中，0≤n≤255，0表示的是显示面板的最低灰阶，255表示的是显示面板的最高灰阶，显示画面的各像素的灰阶与亮度的关系一般符合式（1）表示的伽马曲线：
L=gray γ    （1）
式（1）中，L为亮度，gray为灰阶，γ一般为2.2，但不限于2.2。显示画面的每个像素的显示亮度为其对应的子像素的显示亮度的混合。当红色子像素（R）、绿色子像素（G）以及蓝色子像素（B）的灰阶值全部为0时，显示面板显示的画面为黑色，当红色子像素（R）、绿色子像素（G）以及蓝色子像素（B）的灰阶值全部为255时，显示面板的显示画面为白色。在驱动一幅显示画面显示时，通过对每个像素的子像素提供一个显示所需的灰阶值，控制该子像素的亮度，进而使得该子像素显示相应的颜色，在理想状态下，显示面板对应显示一个亮度均匀性高的显示画面。但有时显示画面会出现亮纹，亮纹使显示的画面出现相对亮和相对暗的区域，这种现象为断层现象。
亮纹将显示画面分割成的相对亮和相对暗的区域，我们定义为断层区域，断层区域所在位置定义为断层位置。
为了更清楚的描述说明，作一个简单的举例，如图2所示，显示面板100上出现一个亮纹110，并将显示区域分割成三部分，分别为第一断层区域121，第二断层区域122，第三断层区域123，第一断层区域121、第二断层区域122和第三断层区域123在显示面板100的位置为断层位置120。
在一些实施例中，获取显示面板的断层位置之后还包括步骤：
检测各个断层区域的子像素灰阶值，以获取各个断层区域相对应的灰阶值。各断层区域的灰阶值可以使用Matlab或PhotoShop等检测单元获取，在这里不做特别限制。以使用Matlab为例，选定待检测的断层区域，用Matlab打开该待检测的断层区域画面，查看目标处的各像素的子像素灰阶值，获取待检测断层区域的多个像素灰阶值，具体步骤请参考现有技术，这里不再赘述。
步骤102：基于所述断层区域的灰阶值对相应断层区域进行亮度处理。
所述亮度处理是指根据断层区域之间的亮度差异利用亮度处理单元调整相应所述断层区域的亮度。所述亮度处理单元可以为白平衡处理单元，也可以为现有技术中其他可以调节亮度的单元，在此本申请不做特别限制。所述亮度处理可以通过白平衡处理实现的。所述白平衡处理是指根据断层区域之间的亮度差异利用白平衡处理单元调整相应断层区域的亮度。具体地，白平衡处理单元可以为逻辑板（timing controllerchip，Tcon板），通过向白平衡处理单元输入断层区域的像素的原始灰阶值，调整像素对应的红色子像素（R）、绿色子像素（G）以及蓝色子像素（B）的分量或比例关系，得到该像素的一个新的灰阶值，即为输出灰阶值，输出灰阶值对应一个新的亮度值，达到升高或降低相应断层区域的亮度的目的。当相应断层区域的亮度升高或降低后，确定断层位置的断层现象是否消除。
在一些实施例中，基于所述断层区域的灰阶值对相应断层区域进行亮度处理，包括：
（1）根据各个断层区域相对应的灰阶值，确定各个断层区域的亮度差异。
（2）根据各个断层区域的亮度差异，升高或降低各个断层区域的亮度。
基于断层区域中多个像素的灰阶值，获取多个像素对应的亮度值，取每个断层区域的亮度平均值，确定断层区域之间的亮度平均值差值（在这里统一定义为亮度差值）。根据该亮度差值，利用白平衡处理单元调整各个断层区域的亮度，包括升高或降低断层区域的亮度。（需要说明的是，本申请所述断层区域的亮度是指断层区域中多个像素对应的亮度值的平均值。其他地方不再赘述。）
步骤103：若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异。
若显示面板的断层位置经过亮度处理单元处理后，确定断层位置的断层现象消除，而断层区域之间的亮度差值相较于处理前下降，则推断所述亮度处理单元处理前断层区域之间的亮度存在差异。断层区域之间的亮度差值可以指的是相邻断层区域之间，也可以指非相邻断层区域之间。所述亮度存在差异，是指所述断层区域之间存在亮度差值，所述亮度差值使显示面板出现亮纹。
此外，斜视时，从显示面板上更容易感知断层现象。图3（a）为示出正视和45°斜视时实际测得的各灰阶的归一化显示面板亮度值曲线（各灰阶Gamma曲线）。图3（b）为示出正视和45°斜视时实际测得的低灰阶的归一化显示面板亮度值曲线（低灰阶Gamma曲线）。横坐标表示各灰阶，纵坐标为各灰阶对应的亮度值与最高灰阶255对应的亮度值的比值（又称归一化亮度）。作为一个示范性举例，低灰阶可以为0至50灰阶，中间灰阶为50至200，高灰阶为201至255。但是本申请并不限定低灰阶、中间灰阶和高灰阶的具体分界点，可视具体情况而定。如图3（a）和图3（b）所示，低灰阶Gamma曲线在斜视时的斜率比正视时的斜率大，归一化亮度增加的速率快，相同的灰阶差异导致的亮度差值更大。因此，在低灰阶斜视时更容易感知到亮度差异，更容易检测到显示画面的断层现象。这也证明了前述的断层区域之间亮度存在差异会导致显示面板出现断层现象。
在一些实施例中，所述若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异，包括：
（1）通过升高或降低各个断层区域的亮度确定断层区域的断层现象是否消除。
（2）基于断层区域的断层现象是否消除，判断断层区域之间的亮度差值是否降低。
通过对断层区域进行进行亮度处理，调整断层区域的亮度，改变断层区域之间的亮度差值，然后判断断层现象是否消除。若断层现象消除，判断断层区域之间的亮度差值是否降低。若断层现象消除，断层区域之间的亮度差值降低，则确定断层区域之间的亮度存在差异。断层区域之间的亮度差值过大，显示画面的亮度不均匀性差，导致了亮纹的产生。
步骤104：若所述断层区域之间的亮度存在差异，则基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值。
若确定断层区域之间的断层现象是由断层区域之间亮度存在差异导致的，则基于所述断层区域的灰阶值调整相应断层区域的亮度。所述相应断层区域可以是一个断层区域，也可以是两个断层区域，又或者是全部的断层区域，在这里不作限制。
在一些实施例中，若所述断层区域之间的亮度存在差异，所述基于所述断层区域的灰阶值调整相应断层区域的亮度，包括：
基于所述断层区域之间的灰阶值的差异，缩小所述断层区域之间的亮度差异，以降低断层区域之间的亮度差值。
本实施例使用逻辑板（timing controllerchip，Tcon板）调整断层区域的亮度，基于各断层区域中像素的灰阶值，升高或降低各个断层区域的亮度值，以降低断层区域之间的亮度差值，消除显示画面中的亮纹。当然断层区域的亮度调整单元也可以是机芯板（System on a Chip，SOC板）等，在这里不做限制。
在一些实施例中，若所述断层区域之间的亮度存在差异，所述基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值，之后包括：
（1）将亮度调整后所述相邻两个断层区域之间的最大亮度差值与亮度调整前所述相邻两个断层区域之间的最大亮度差值相除得到比值。
（2）比值小于等于50%，则确定所述断层现象消除。
由于不同灰阶下的显示画面，亮度均匀性的要求不相同，亮度差值降低的幅度也不相同，经过试验表明，当调整后相邻两个断层区域之间的最大亮度差值小于等于调整前相邻两个断层区域之间的最大亮度差值的50%时，显示面板的断层现象消除。以图2的第一断层区域121和第二断层区域122为例，亮度调整前，第一断层区域121和第二断层区域122之间的亮度差值为第一差值，亮度调整后，第一断层区域121和第二断层区域122之间的亮度差值为第二差值，所述第二差值与所述第一差值的比值小于等于50%时，第一断层区域121和第二断层区域122的断层现象消除。
本申请通过获取显示面板的断层位置，基于灰阶值对断层位置包括的断层区域进行亮度处理，比如白平衡处理，若白平衡处理后断层现象消除，断层区域之间的亮度差值较处理前降低，则确定断层区域之间的亮度存在差异，调整断层位置的亮度，降低断层区域之间的亮度差值，提高了显示面板的显示亮度均匀性，改善了液晶显示面板的断层现象，提升了显示品质。
基于相同的发明构思，第二方面，本申请提供一种液晶显示面板断层现象的改善装置10，图4为改善装置10的结构框图。如图4所示，改善装置10包括：获取单元11、处理单元12、确定单元13和调整单元14。
获取单元11用于获取显示面板的断层位置，其中，所述断层位置至少包括两个断层区域。
处理单元12用于基于所述断层区域的灰阶值对相应断层区域进行亮度处理。
确定单元13用于若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异。
调整单元14用于若所述断层区域之间的亮度存在差异，则基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值。
在一些实施例中，改善装置10还包括检测单元：所述检测单元用于检测各个断层区域的子像素灰阶值，以获取各个断层区域相对应的灰阶值。
在一些实施例中，所述处理单元12包括第一确定子单元和第一调整子单元：
所述第一确定子单元用于根据所述各个断层区域相对应的灰阶值，确定各个断层区域的亮度差异。
所述第一调整子单元用于根据各个断层区域的亮度差异，升高或降低各个断层区域的亮度。
在一些实施例中，确定单元13包括第二确定子单元和第一判断子单元：
所述第二确定子单元用于通过升高或降低各个断层区域的亮度，确定断层区域的断层现象是否消除。
所述第一判断子单元用于基于断层区域的断层现象是否消除，判断断层区域之间的亮度差值是否降低。
在一些实施例中，调整单元14可以包括获取子单元和第二调整子单元：
所述获取子单元用于获取断层区域的灰阶值的差异。
所述第二调整子单元用于基于断层区域的灰阶值的差异，缩小各个断层区域的亮度差异，以降低断层区域之间的亮度差值。
在一些实施例中，调整单元14还可以包括第二判断子单元和第三确定子单元：
所述第二判断子单元用于判断亮度调整后所述相邻两个断层区域之间的最大亮度差值与亮度调整前所述相邻两个断层区域之间的最大亮度差值相除得到的比值是否小于等于50%。
所述第三确定子单元用于根据比值小于等于50%，确定所述断层现象消除。
本申请提供的液晶显示面板断层现象的改善装置，包括获取单元，获取显示面板的断层位置；处理单元，基于所述断层区域的灰阶值对相应断层区域进行亮度处理；确定单元，若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异；调整单元，若所述断层区域之间的亮度存在差异，则基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值。利用所述改善装置消除了显示面板的断层现象，使得显示面板的亮度均匀，提升显示面板的显示效果。
第三方面，本申请提供一种液晶显示面板，所述液晶显示面板使用了所述的断层现象改善方法制程。
以上对本申请实施方式所提供的一种显示面板的断层现象的改善方法，装置及显示面板进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施方式的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施方式所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施方式的技术方案的范围。

Claims (20)

  1. 一种液晶显示面板断层现象的改善方法，其中，包括：
    获取显示面板的断层位置，其中，所述断层位置至少包括两个断层区域；
    基于所述断层区域的灰阶值对相应断层区域进行亮度处理；
    若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异；
    若所述断层区域之间的亮度存在差异，则基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值。
  2. 根据权利要求1所述的液晶显示面板断层现象的改善方法，其中，所述获取显示面板的断层位置之后：
    检测各个断层区域的子像素灰阶值，以获取各个断层区域相对应的灰阶值。
  3. 根据权利要求2所述的液晶显示面板断层现象的改善方法，其中，所述基于所述断层区域的灰阶值对相应断层区域进行亮度处理，包括：
    根据所述各个断层区域相对应的灰阶值，确定各个断层区域的亮度差异；
    根据各个断层区域的亮度差异，升高或降低各个断层区域的亮度。
  4. 根据权利要求3所述的液晶显示面板断层现象的改善方法，其中，所述若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异，包括：
    通过升高或降低各个断层区域的亮度，确定断层区域的断层现象是否消除；
    基于断层区域的断层现象是否消除，判断断层区域之间的亮度差值是否降低。
  5. 根据权利要求1所述的液晶显示面板断层现象的改善方法，其中，所述基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值，包括：
    基于所述断层区域的灰阶值的差异；
    缩小各个断层区域的亮度差异，以降低断层区域之间的亮度差值。
  6. 根据权利要求1所述的液晶显示面板断层现象的改善方法，其中，所述基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值，之后包括：
    将亮度调整后相邻两个断层区域之间的最大亮度差值与亮度调整前所述相邻两个断层区域之间的最大亮度差值相除得到比值；
    比值小于等于50%，则确定所述断层现象消除。
  7. 根据权利要求1所述的液晶显示面板断层现象的改善方法，其中，所述亮度处理是通过白平衡处理实现的。
  8. 一种液晶显示面板断层现象的改善装置，其中，包括：
    获取单元，用于获取显示面板的断层位置，其中，所述断层位置至少包括两个断层区域；
    处理单元，用于基于所述断层区域的灰阶值对相应断层区域进行亮度处理；
    确定单元，用于若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异；
    调整单元，用于若所述断层区域之间的亮度存在差异，则基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值。
  9. 根据权利要求8所述的液晶显示面板断层现象的改善装置，其中，还包括检测单元，所述检测单元用于检测各个断层区域的子像素灰阶值，以获取各个断层区域相对应的灰阶值。
  10. 根据权利要求9所述的液晶显示面板断层现象的改善装置，其中，所述处理单元包括第一确定子单元和第一调整子单元，
    所述第一确定子单元用于根据所述各个断层区域相对应的灰阶值，确定各个断层区域的亮度差异；
    所述第一调整子单元用于根据各个断层区域的亮度差异，升高或降低各个断层区域的亮度。
  11. 根据权利要求10所述的液晶显示面板断层现象的改善装置，其中，所述确定单元包括第二确定子单元和第一判断子单元，
    所述第二确定子单元用于通过升高或降低各个断层区域的亮度，确定断层区域的断层现象是否消除；
    所述第一判断子单元用于基于断层区域的断层现象是否消除，判断断层区域之间的亮度差值是否降低。
  12. 根据权利要求8所述的液晶显示面板断层现象的改善装置，其中，所述调整单元包括获取子单元和第二调整子单元，
    所述获取子单元用于获取所述断层区域的灰阶值的差异；
    所述第二调整子单元用于基于断层区域的灰阶值的差异，缩小各个断层区域的亮度差异，以降低断层区域之间的亮度差值。
  13. 根据权利要求8所述的液晶显示面板断层现象的改善装置，其中，所述调整单元还包括第二判断子单元和第三确定子单元，
    所述第二判断子单元用于将亮度调整后相邻两个断层区域之间的最大亮度差值与亮度调整前所述相邻两个断层区域之间的最大亮度差值相除，得到一比值，判断所述比值是否小于等于50%；
    所述第三确定子单元用于根据所述比值小于等于50%确定所述断层现象消除。
  14. 一种液晶显示面板，其中，使用了所述液晶显示面板的断层现象改善方法，所述改善方法包括：
    获取显示面板的断层位置，其中，所述断层位置至少包括两个断层区域；
    基于所述断层区域的灰阶值对相应断层区域进行亮度处理；
    若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异；
    若所述断层区域之间的亮度存在差异，则基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值。
  15. 根据权利要求14所述的液晶显示面板，其中，所述获取显示面板的断层位置之后：
    检测各个断层区域的子像素灰阶值，以获取各个断层区域相对应的灰阶值。
  16. 根据权利要求15所述的液晶显示面板，其中，所述基于所述断层区域的灰阶值对相应断层区域进行亮度处理，包括：
    根据所述各个断层区域相对应的灰阶值，确定各个断层区域的亮度差异；
    根据各个断层区域的亮度差异，升高或降低各个断层区域的亮度。
  17. 根据权利要求16所述的液晶显示面板，其中，所述若亮度处理后，断层区域之间的亮度差值降低，则确定处理前所述断层区域之间的亮度存在差异，包括：
    通过升高或降低各个断层区域的亮度，确定断层区域的断层现象是否消除；
    基于断层区域的断层现象是否消除，判断断层区域之间的亮度差值是否降低。
  18. 根据权利要求14所述的液晶显示面板，其中，所述基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值，包括：
    基于所述断层区域的灰阶值的差异；
    缩小各个断层区域的亮度差异，以降低断层区域之间的亮度差值。
  19. 根据权利要求14所述的液晶显示面板，其中，所述基于所述断层区域的灰阶值调整相应断层区域的亮度以降低断层区域之间的亮度差值，之后包括：
    将亮度调整后相邻两个断层区域之间的最大亮度差值与亮度调整前所述相邻两个断层区域之间的最大亮度差值相除得到比值；
    比值小于等于50%，则确定所述断层现象消除。
  20. 根据权利要求14所述的液晶显示面板，其中，所述亮度处理是通过白平衡处理实现的。
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