WO2019047408A1 - 一种显示面板的亮度测量方法及动态取样装置 - Google Patents

一种显示面板的亮度测量方法及动态取样装置 Download PDF

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Publication number
WO2019047408A1
WO2019047408A1 PCT/CN2017/116289 CN2017116289W WO2019047408A1 WO 2019047408 A1 WO2019047408 A1 WO 2019047408A1 CN 2017116289 W CN2017116289 W CN 2017116289W WO 2019047408 A1 WO2019047408 A1 WO 2019047408A1
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Prior art keywords
brightness
difference
values
points
display panel
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PCT/CN2017/116289
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English (en)
French (fr)
Inventor
邱彬
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Publication of WO2019047408A1 publication Critical patent/WO2019047408A1/zh

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/3406Control of illumination source
    • G09G3/342Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0233Improving the luminance or brightness uniformity across the screen

Definitions

  • the present application relates to the field of liquid crystal display technologies, and in particular, to a method for measuring brightness of a display panel and a dynamic sampling device.
  • the current fixed sampling point scheme will have a poor compensation effect for the uneven brightness of the specific display panel.
  • the brightness unevenness of the display panel is small, just in the 8X8. In the area, or the boundary line of the panel brightness unevenness is not at the sampling point, there will be a case where the compensation effect is poor or not improved at all.
  • FIG. 1 it is a sampling principle for eliminating brightness unevenness of a display panel.
  • the minimum compensation unit in the prior art is 8*8 Pixel (pixel), that is, 8 pixels in the horizontal direction and the vertical direction are offset points, and the compensation point is used as a reference, and the compensation data of each pixel in the middle is obtained by linear operation.
  • the drawback of this is obvious, that is, when the brightness of the display panel is not at the sampling point, it is difficult to get a good compensation, especially for the brightness unevenness of the display panel which is more obvious on the boundary line. .
  • the technical problem to be solved by the present application is to provide a method for measuring the brightness of a display panel, so as to dynamically increase the number of sampling points and achieve fine compensation of uneven brightness of the display panel.
  • the technical problem to be solved by the present application is to provide a dynamic sampling device, so as to be able to eliminate the uneven brightness of the display panel to achieve dynamic sampling.
  • a method for measuring brightness of a display panel including:
  • the plurality of first rectangular regions are 8*8 pixels.
  • the plurality of second rectangular regions are 4*4 pixels.
  • the plurality of smaller area rectangular regions are 2*2 pixels or 1*1 pixels.
  • the minimum area of the rectangular area is 1*1 pixels.
  • performing brightness compensation calculation on the two boundary points is 1*1 pixels.
  • the direction is a horizontal direction.
  • the direction is a vertical direction.
  • the method further includes deleting the brightness of the remaining right angle points when the two boundary points are obtained
  • an embodiment of the present application further provides a method for measuring brightness of a display panel, including:
  • the plurality of first rectangular regions are 8*8 pixels.
  • the plurality of second rectangular regions are 4*4 pixels.
  • the plurality of smaller area rectangular regions are 2*2 pixels or 1*1 pixels.
  • the minimum area of the rectangular area is 1*1 pixels.
  • the direction is a horizontal direction.
  • the direction is a vertical direction.
  • the method further comprises deleting the brightness values of the remaining right angle points when the two boundary points are obtained.
  • the embodiment of the present application further provides a dynamic sampling device for eliminating brightness unevenness of a display panel, comprising: a brightness acquiring module, performing shooting on a display panel, wherein the brightness acquiring module obtains the display a brightness value of the four right-angled points of the plurality of first rectangular regions of the panel; the control module is electrically connected to the brightness obtaining module, and obtains brightness values of the plurality of right-angled points and performs two right angles adjacent to each other in one direction Calculating a difference between the brightness values of the points to obtain a plurality of difference values; wherein the control module determines whether the plurality of difference values are greater than a standard value, and if any of the plurality of difference values is greater than the standard value, The control module controls the brightness acquisition module to acquire brightness values of four right angle points of the plurality of second rectangular areas of the display panel, wherein an area of the plurality of second rectangular areas is smaller than the plurality of first rectangular areas The area of the second right-angled point adjacent to each other in the
  • the present application detects the difference in luminance value data of adjacent sampling points (right angle points) If the difference between the brightness value data is too large, the number of sampling points is dynamically increased, and the fine compensation of the brightness unevenness of the display panel is improved and the adaptation of the brightness unevenness mechanism of the display panel to the display panel is eliminated.
  • the application can cancel the sampling data of other points, and only perform compensation calculation on the boundary point, which can further reduce the calculation amount and the final data storage amount. .
  • FIG. 1 is a schematic diagram of a conventional sampling principle for eliminating brightness unevenness of a display panel.
  • FIG. 2 is a schematic diagram of obtaining four right-angled points of a plurality of rectangular regions of 8*8 pixels according to a method for measuring brightness of a display panel according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of obtaining four right-angle points of a plurality of rectangular regions of 4*4 pixels in a method for measuring brightness of a display panel according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of taking a right angle point at intervals of 2 pixels in the horizontal direction according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of obtaining two boundary points on a brightness unevenness boundary of a display panel in a horizontal direction according to an embodiment of the present application.
  • FIG. 6 is a step diagram of a method for measuring brightness of a display panel according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of obtaining four right-angle points of a plurality of rectangular regions of 8 ⁇ 8 pixels in a method for measuring brightness of a display panel according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an embodiment of the present application
  • FIG. 4 is a right angle of 2 pixels in the horizontal direction in an embodiment of the present application
  • FIG. 5 is a schematic diagram of obtaining two boundary points on a brightness unevenness boundary of a display panel in a horizontal direction according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a method for measuring brightness of a display panel according to an embodiment of the present application; Figure.
  • FIG. 2 to FIG. 6 illustrate a method for measuring brightness of a display panel according to an embodiment of the present application, where the method includes the following steps:
  • Step S1 capturing a display panel to obtain four right-angle points of the plurality of first rectangular regions of the display panel, for example, brightness values of P1, P8, P16, N1, N8, and N16 shown in FIG. .
  • the brightness acquiring module for capturing the display panel may be a camera
  • the first rectangular area may be a rectangular area of 8*8 pixels
  • the right angle point P1 obtained by the brightness acquiring module is The brightness value is 200 nits (brightness unit)
  • the right angle point P8 has a brightness value of 50 nits
  • the right angle point P16 has a brightness value of 200 nits
  • the right angle point N1 has a brightness value of 200 nits
  • the right angle point N8 has a brightness value of 50 nits
  • the right angle point N8 has a brightness value of 50 nits
  • the brightness value is 200 nits.
  • Step S2 acquiring the plurality of right angle points (for example, P1, P8, P16, Nl, N8, Nl shown in FIG. 2)
  • the brightness value is calculated by the difference between the brightness values of the two right-angle points (PI and P8) and (P16 and P8) adjacent to each other in the horizontal direction to obtain a plurality of difference values.
  • the difference between the brightness values of 1 and P8), (P16 and P8) is calculated to obtain the difference between the two right angle points P1 and P8 is 150 nits, and the other two right angle points P16 and P8 are 150 nits.
  • Step S3 determining whether the plurality of difference values are greater than a standard value.
  • the standard value may be a difference of the brightness values, and the unit is the same as the brightness value.
  • the standard value may be set to 110 nits, so the control module may determine the plurality of difference values (right angle point PI) Whether the difference between the brightness value of the right angle point P8 and the brightness value of the right angle point P16 and the right angle point P8 is greater than the standard value 110 nitso
  • Step S4 if any one of the plurality of difference values is greater than a standard value, the control module controls the brightness acquisition module to take The brightness values of the four right-angled points of the rectangular area (for example, P1, P4, P8, P12, P16, etc. shown in FIG. 3) of a plurality of smaller areas of the panel (for example, 4*4 pixels) are displayed.
  • the brightness values of the four right-angled points of the rectangular area for example, P1, P4, P8, P12, P16, etc. shown in FIG. 3
  • a plurality of smaller areas of the panel for example, 4*4 pixels
  • the difference between the brightness value of the right angle point P1 and the right angle point P8, and the difference between the brightness value of the right angle point P16 and the right angle point P8 are greater than the standard value of 110 nits, so the control module controls the brightness acquisition module to obtain The brightness values of the four right-angled points P1, P4, P8, P12, P16 of the rectangular area of the display panel of a plurality of smaller areas (4*4 pixels) (as shown in FIG.
  • the brightness value of the right angle point P1 is 20 Onits
  • the brightness value of the right angle point P8 is 50 nits
  • the brightness value of the right angle point P16 is 200 nits
  • the brightness value of the right angle point P4 is 50 nits
  • the brightness value of the right angle point P12 is 200 nits.
  • Step S2 is repeated to perform two right-angle points (PI and P4), (P4 and P8), (P8 and P12) adjacent to each other in the horizontal direction.
  • the difference between the brightness values of (P12 and P16) is calculated to obtain the difference between the two right-angle points P1 and P4 is 150 nits, the difference between the two right-angle points P4 and P8 is O nits, and the difference between the two right-angle points P8 and P12 is 150. Nits, the difference between the two right angle points P12 and P16 is 0 nits.
  • repeating step S3, determining the plurality of difference values (the difference between the brightness values of P1 and P4, the difference between the brightness values of P4 and P8, the difference between the brightness values of P8 and P12, and the brightness values of P12 and P16) Difference) is greater than the standard value of 110 nits.
  • Step S4 the difference between the right angle point PI and the right angle point P4, and the difference between the right angle point P8 and the right angle point P12 are greater than the standard value.
  • the brightness value of the right angle point P8 is 50 nits, and the brightness value of the right angle point P16 200 nits, the right angle P4 has a brightness value of 50 nits, the right angle P12 has a brightness value of 200 nits, the right angle point P2 has a brightness value of 100 nits, the right angle point P6 has a brightness value of 50 nits, and the right angle point P10 has a brightness value of 100 nits, and the right angle point P10 has a brightness value of 100 nits.
  • the brightness value of P14 is
  • Step S3 is repeated to determine the plurality of difference values (the difference between the brightness values of the right angle point P1 and the right angle point P2, the difference between the brightness values of the right angle point P2 and the right angle point P4, and the brightness values of the right angle point P4 and the right angle point P6.
  • the difference between the brightness value of the right angle point P10 and the right angle point P12 , the difference between the brightness value of the right angle point P12 and the right angle point P14, and the difference between the brightness value of the right angle point P14 and the right angle point P16 are greater than the standard value of 110 nits.
  • Step S5 if the plurality of difference values are less than the standard value of 110 nits, determining a larger two of the plurality of difference values, and obtaining a right angle point P2 with a lower brightness value corresponding to the two difference values P10, to obtain two boundary points P2 and P10 on the brightness unevenness boundary of the display panel in the horizontal direction.
  • the difference between P4 and P6 is the Onits
  • the difference between P6 and P8 is Onits
  • the difference between P8 and P10 is 50nits
  • the difference between P10 and P12 is lOOnits
  • the second is P12.
  • the difference from PI 4 is O nits
  • the difference between the two right angle points P14 and P16 is 0.
  • the larger two difference values in nits) (the difference between the two right angle points P1 and P2 is 100 nits, the difference between the two right angle points P10 and P12 is lOOnits), and the right angle point P2 with the lower brightness value corresponding to the two difference values is obtained.
  • P10 to obtain two boundary points P2 and P10 on the brightness unevenness boundary of the display panel in the horizontal direction.
  • a minimum area of the plurality of rectangular regions of the display panel may be 1*1 pixels.
  • the method further includes: Step S6: deleting brightness values of the remaining right angle points P1, P4, P6, P8, P12, P14, and P16, and performing brightness compensation calculation only on the two boundary points P2 and P10. Yes, the amount of calculation and the final amount of data storage can be further reduced.
  • the embodiment of the present application only performs the fine sampling in the horizontal direction, and the fine sampling control in the vertical direction can also be performed according to the same process, thereby achieving a more accurate brightness unevenness compensation effect of the display panel.
  • the above-mentioned operations of obtaining the brightness value, judgment, calculation, and the like of the right-angle point can be realized by a calculation unit such as a control module.
  • the brightness measurement method of the display panel provided by the embodiment of the present application can be applied to an LCD display display panel, an OLED display display panel, a QLED display display panel, a curved display panel, or other display panel. in.
  • it is applied to an LCD display panel.
  • a dynamic sampling method for eliminating luminance unevenness of an LCD display panel is provided in the embodiment of the present application. The method includes the following steps:
  • Step S1 capturing the LCD display panel, and obtaining brightness values of four right-angled points of the plurality of rectangular regions of the LCD display display panel, for example, four rectangular regions of 8*8 pixels as shown in FIG. 2
  • Brightness values of right angle points P 1 , P8, P16, Nl, N8, N16 may be a camera.
  • the brightness value of the right angle point P1 obtained by the brightness acquiring module is 200 nits, and the brightness value of the right angle point P8 is 50 ni ts.
  • the brightness value of the right angle point P16 is 200 nits
  • the brightness value of the right angle point N1 is 200 nits
  • the brightness value of the right angle point N8 is 50 nits
  • the brightness value of the right angle point N16 is 200 nits.
  • Step S2 acquiring the plurality of right angle points (for example, P1, P8, P16, Nl, N8, and N16 shown in FIG. 2)
  • the luminance value is calculated by the difference between the luminance values of the two right-angle points (PI and P8) and (P16 and P8) adjacent to each other in the horizontal direction to obtain a plurality of difference values.
  • the difference between the brightness values of the two right-angle points (P1 and P8) and (P16 and P8) adjacent to each other in the horizontal direction may be calculated by the control module to obtain the two right-angle points P1.
  • the difference from P8 is 150 nits
  • the difference between P16 and P8 is 150 nits.
  • Step S3 determining whether the plurality of difference values are greater than a standard value.
  • the standard value may be a difference of the brightness values, and the unit is the same as the brightness value.
  • the standard value may be set to 110 nits, so the plurality of difference values may be determined (the right angle point PI and the right angle) Whether the difference in the brightness value of the point P8, the difference between the brightness value of the right angle point P16 and the right angle point P8 is greater than the standard value of 110 nits.
  • Step S4 if any of the plurality of difference values is greater than a standard value, obtaining four right-angle points of a rectangular area of a plurality of smaller areas (for example, 4*4 pixels) of the display panel (for example, FIG. 3 The brightness values of Pl, P4, P8, P12, P16, etc. shown.
  • the difference between the brightness value of the right angle point P1 and the right angle point P8, and the difference between the brightness value of the right angle point P16 and the right angle point P8 are greater than the standard value of 110 nits, so that the LCD display panel is obtained again.
  • the brightness values of the four right-angled points P1, P4, P8, P12, P16 of the rectangular area of a plurality of smaller areas (4*4 pixels) (as shown in FIG.
  • the brightness value is 200 nits
  • the brightness value of the right angle point P 8 is 50 nits
  • the brightness value of the right angle point P16 is 200 nits
  • the brightness value of the right angle point P4 is 50 nits
  • the brightness value of the right angle point P12 is 200 nits.
  • Step S2 is repeated to perform two right-angle points (PI and P4), (P4 and P8), (P8 and P12) adjacent to each other in the horizontal direction.
  • the difference between the brightness values of (P12 and P16) is calculated to obtain the difference between the two right-angle points P1 and P4 is 150 nits, the difference between the two right-angle points P4 and P8 is O nits, and the difference between the two right-angle points P8 and P12 is 150. Nits, the difference between the two right angle points P12 and P16 is 0 nits. [0073] repeating step S3, determining the plurality of difference values (the difference between the brightness values of PI and P4, the difference between the brightness values of P4 and P8, the difference between the brightness values of P8 and P12, and the brightness values of P12 and P16) Difference) is greater than the standard value of 110 nits.
  • Step S4 is repeated, the difference between the brightness values of the right angle point PI and the right angle point P4, and the difference between the brightness value of the right angle point P8 and the right angle point P12 are greater than the standard value of 110 nits, thereby obtaining a plurality of more of the LCD display display panel.
  • the brightness of the right angle point P1 obtained by the brightness acquisition module is 200 nits
  • the brightness value of the right angle point P8 is 50 nits
  • the brightness value of the right angle point P16 is 200 nits
  • the brightness value of the right angle point P4 is 50 nits
  • the right angle P12 has a brightness value of 200 nits
  • the right angle point P2 has a brightness value of 100 nits
  • the right angle point P6 has a brightness value of 50 nits
  • the right angle point P10 has a brightness value of 100 nits
  • the right angle point P14 has a brightness value of 200 nits.
  • Step S3 is repeated to determine the plurality of difference values (the difference between the brightness values of the right angle point P1 and the right angle point P2, the difference between the brightness values of the right angle point P2 and the right angle point P4, and the right angle point P4 and the right angle point P6
  • the difference in the brightness value of P14, the difference between the brightness value of the right angle point P14 and the right angle point P16 is greater than the standard value of 110 nits.
  • Step S5 If the plurality of difference values are less than the standard value of 110 nits, determine a larger two of the plurality of difference values, and obtain a right angle point P2 with a lower brightness value corresponding to the second difference value. P10, to obtain two boundary points P2 and P10 on the brightness unevenness boundary of the display panel in the horizontal direction.
  • the plurality of difference values are determined (the difference between the two right angle points P1 and P2 is 100 nits, and the difference between the two right angle points P2 and P4 is 50
  • the difference between P4 and P6 is the Onits
  • the difference between P6 and P8 is Onits
  • the difference between P8 and P10 is 50nits
  • the difference between P10 and P12 is lOOnits
  • the second is P12.
  • the difference from PI 4 is O nits
  • the difference between the two right angle points P14 and P16 is 0.
  • the larger two difference values in nits) (the difference between the two right angle points P1 and P2 is 100 nits, the difference between the two right angle points P10 and P12 is lOOnits), and the right angle point P2 with the lower brightness value corresponding to the two difference values is obtained.
  • P10 to obtain two boundary points P2 and P10 on the brightness unevenness boundary of the display panel in the horizontal direction.
  • the minimum area of the plurality of rectangular regions of the LCD display display panel may be 1*1 Pixels.
  • the method further includes: Step S6: deleting brightness values of the remaining right angle points P1, P4, P6, P8, P12, P14, and P16, and performing brightness compensation calculation only on the two boundary points P2 and P10. Yes, the amount of calculation and the final amount of data storage can be further reduced.
  • the embodiment of the present application only performs the fine sampling in the horizontal direction, and the fine sampling control in the vertical direction can also be performed according to the same process, thereby achieving a more accurate compensation effect of the brightness unevenness of the LCD display panel.
  • the above-mentioned operations of obtaining the brightness value, judgment, calculation, and the like of the right angle point can be realized by the control module.

Abstract

一种显示面板的亮度测量方法及动态取样装置,测量方法包括:对显示面板进行拍摄,取得显示面板的多个第一矩形区域的四个直角点的亮度值(S1);获取多个直角点的亮度值并进行一方向上彼此相邻的二直角点的亮度值的差异计算,以获得多个差异值(S2);判断多个差异值是否大于一标准值(S3);若任一差异值大于标准值,则获取显示面板的多个更小面积的矩形区域的四个直角点的亮度值(S4);当多个差异值均小于或等于标准值时,则判断最新的多个差异值中较大的二差异值,取得二差异值所对应的亮度值较低的直角点,以取得在方向上显示面板的亮度不均边界上的二边界点(S5)。测量方法和取样装置通过侦测相邻取样点的亮度值数据差异,做到显示面板亮度不均的精细补偿并且提升消除显示面板亮度不均对显示面板的适应状况。

Description

一种显示面板的亮度测量方法及动态取样装置 技术领域
[0001] 本申请涉及液晶显示技术领域, 尤其涉及一种显示面板的亮度测量方法及动态 取样装置。
背景技术
[0002] 液晶显示面板由于生产工艺复杂, 管控难度大, 在生产的过程中容易造成 mum 现象 (亮度不均匀) , 出现亮点或暗点, 即显示面板的某个区域由于显示亮度的 差异造成的区块状的痕迹现象, 降低显示面板的质量等级。 近些年来, 随着 4K 、 2K电视的普及, 显示面板亮度不均现象越来越严重, 消除显示面板亮度不均( Demum)技术便应运而生, 目前这种技术为了减小补偿的资料量, 采取设定一个 最小补偿区域的方案, 比如目前常用的 8*8=64个像素 (pixel)的矩形区域为最小补 偿区域, 只取这个矩形的 4个直角点作为补偿的基准点, 矩形的其他区域都是用 这 4个点为基准做算法运算得到, 这样内存只需要保存 4个像素 1点的数据即可。 可是由于显示面板亮度不均的状况复杂多变, 那么目前的固定取样点的方案针 对特定显示面板亮度不均的补偿效果就会很差, 比如显示面板亮度不均区域较 小, 正好在 8X8这个区域内, 或者显示面板亮度不均的边界线不在取样点上, 就 会出现补偿效果很差, 甚至根本没有改善的情况。
[0003] 如图 1所示, 是现有的消除显示面板亮度不均的取样原理, 以 UD分辨率 (3840 *2160) 的显示面板举例, 现有技术中的最小补偿单元是 8*8个像素 (pixel) , 即水 平方向和垂直方向上都是间隔 8个像素取一个补偿点, 以此补偿点为基准, 再通 过线性运算得到中间每个像素的补偿数据。 这样做的缺陷很明显, 就是当显示 面板亮度不均不在取样点上的吋候, 就很难得到很好的补偿, 特别是对边界线 比较明显的显示面板亮度不均补偿效果就会更差。
技术问题
[0004] 本申请首先要解决的技术问题是, 提供一种显示面板的亮度测量方法, 以便能 够动态地提高取样点数量, 做到显示面板亮度不均的精细补偿。 [0005] 本申请还要解决的技术问题是提供一种动态取样装置, 以便能够消除显示面板 亮度不均实现动态取样。
问题的解决方案
技术解决方案
[0006] 为解决上述技术问题, 本申请实施例首先提供以下技术方案: 一种显示面板的 亮度测量方法, 包括:
[0007] 对显示面板进行拍摄, 取得所述显示面板的多个第一矩形区域的四个直角点的 亮度值;
[0008] 获取所述多个直角点的亮度值并进行一方向上彼此相邻的二直角点的亮度值的 差异计算, 以获得多个差异值;
[0009] 判断所述多个差异值是否大于一标准值, 若任一所述多个差异值大于所述标准 值, 则获取所述显示面板的多个第二矩形区域的四个直角点的亮度值, 其中所 述多个第二矩形区域的面积小于所述多个第一矩形区域的面积;
[0010] 再针对第二矩形区域的四个直角点的亮度值进行所述方向上彼此相邻的二直角 点的亮度值的差异计算, 以获得所述多个差异值, 判断所述多个差异值是否大 于所述标准值, 若任一所述多个差异值仍大于所述标准值, 则再获取所述显示 面板的较所述多个第二矩形区域的面积更小的多个更小面积的矩形区域的四个 直角点的亮度值, 并再次针对所述多个更小面积的矩形区域的四个直角点的亮 度值进行所述方向上彼此相邻的二直角点的亮度值的差异计算, 以获得所述多 个差异值, 判断所述多个差异值是否大于所述标准值, 直至判断所述多个差异 值均小于或等于所述标准值;
[0011] 当所述多个差异值均小于或等于所述标准值吋, 则判断所述多个差异值中较大 的二差异值, 取得所述二差异值所对应的亮度值较低的直角点, 以取得在所述 方向上所述显示面板的亮度不均边界上的二边界点。
[0012] 可选地, 所述多个第一矩形区域为 8*8个像素。
[0013] 可选地, 所述多个第二矩形区域为 4*4个像素。
[0014] 可选地, 所述多个更小面积的矩形区域为 2*2个像素或 1*1个像素。
[0015] 可选地, 所述矩形区域的最小面积为 1*1个像素。 [0016] 可选地, 进一步对所述二边界点进行亮度补偿计算。
[0017] 可选地, 所述方向为水平方向。
[0018] 可选地, 所述方向为垂直方向。
[0019] 可选地, 所述方法进一步包括当取得所述二边界点吋, 则刪除其余直角点的亮
[0020] 另一方面, 本申请实施例还提供一种显示面板的亮度测量方法, 包括:
[0021] 对显示面板进行拍摄, 取得所述显示面板的多个第一矩形区域的四个直角点的 亮度值;
[0022] 获取所述多个直角点的亮度值并进行一方向上彼此相邻的二直角点的亮度值的 差异计算, 以获得多个差异值;
[0023] 判断所述多个差异值是否大于一标准值, 若任一所述多个差异值大于所述标准 值, 则获取所述显示面板的多个第二矩形区域的四个直角点的亮度值, 其中所 述多个第二矩形区域的面积小于所述多个第一矩形区域的面积;
[0024] 再针对第二矩形区域的四个直角点的亮度值进行所述方向上彼此相邻的二直角 点的亮度值的差异计算, 以获得所述多个差异值, 判断所述多个差异值是否大 于所述标准值, 若任一所述多个差异值仍大于所述标准值, 则再获取所述显示 面板的较所述多个第二矩形区域的面积更小的多个更小面积的矩形区域的四个 直角点的亮度值, 并再次针对所述多个更小面积的矩形区域的四个直角点的亮 度值, 进行所述方向上彼此相邻的二直角点的亮度值的差异计算以获得所述多 个差异值, 判断所述多个差异值是否大于所述标准值, 直至判断所述多个差异 值均小于或等于所述标准值;
[0025] 当所述多个差异值均小于或等于所述标准值吋, 则判断所述多个差异值中较大 的二差异值, 取得所述二差异值所对应的亮度值较低的直角点, 以取得在所述 方向上所述显示面板的亮度不均边界上的二边界点;
[0026] 对所述二边界点进行补偿数据的计算。
[0027] 可选地, 所述多个第一矩形区域为 8*8个像素。
[0028] 可选地, 所述多个第二矩形区域为 4*4个像素。
[0029] 可选地, 所述多个更小面积的矩形区域为 2*2个像素或 1*1个像素。 [0030] 可选地, 所述矩形区域的最小面积为 1*1个像素。
[0031] 可选地, 所述方向为水平方向。
[0032] 可选地, 所述方向为垂直方向。
[0033] 可选地, 所述方法进一步包括当取得所述二边界点吋, 则刪除其余直角点的亮 度值。
[0034] 另一方面, 本申请实施例还提供一种一种消除显示面板亮度不均的动态取样装 置, 包括: 亮度获取模块, 对一显示面板进行拍摄, 所述亮度获取模块取得所 述显示面板的多个第一矩形区域的四个直角点的亮度值; 控制模块, 与所述亮 度获取模块电性连接, 获取所述多个直角点的亮度值并进行一方向上彼此相邻 的二直角点的亮度值的差异计算, 以获得多个差异值; 其中所述控制模块判断 所述多个差异值是否大于一标准值, 若任一所述多个差异值大于所述标准值, 则所述控制模块控制所述亮度获取模块获取所述显示面板的多个第二矩形区域 的四个直角点的亮度值, 其中所述多个第二矩形区域的面积小于所述多个第一 矩形区域的面积; 所述控制模块针对第二矩形区域的四个直角点的亮度值进行 所述方向上彼此相邻的二直角点的亮度值的差异计算, 以获得所述多个差异值 , 所述控制模块判断所述多个差异值是否大于所述标准值, 若任一所述多个差 异值仍大于所述标准值, 则所述控制模块控制所述亮度获取模块再获取所述显 示面板的较所述多个第二矩形区域的面积更小的多个更小面积的矩形区域的四 个直角点的亮度值, 并再次针对所述多个更小面积的矩形区域的四个直角点的 亮度值进行所述方向上彼此相邻的二直角点的亮度值的差异计算, 以获得所述 多个差异值, 所述控制模块控制判断所述多个差异值是否大于所述标准值, 直 至判断所述多个差异值均小于或等于所述标准值; 当所述多个差异值均小于或 等于所述标准值吋, 则所述控制模块判断所述多个差异值中较大的二差异值, 取得所述二差异值所对应的亮度值较低的直角点, 以取得在所述方向上所述显 示面板的亮度不均边界上的二边界点。
发明的有益效果
有益效果
[0035] 通过采用上述技术方案, 本申请通过侦测相邻取样点 (直角点)的亮度值数据差 异, 如果亮度值数据差异过大, 则动态地提高取样点数量, 做到显示面板亮度 不均的精细补偿及提升消除显示面板亮度不均机制对显示面板的适应状况。 另 夕卜, 本申请于最终定位到显示面板亮度不均边界点吋, 可以设定取消其他点的 采样数据, 只对边界点进行补偿计算即可, 可进一步减少计算量和最终的数据 存储量。
对附图的简要说明
附图说明
[0036] 为了更清楚地说明本申请实施例技术方案, 下面将对实施例描述中所需要使用 的附图作简单地介绍, 显而易见地, 下面描述中的附图是本申请的一些实施例 , 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据 这些附图获得其他的附图。
[0037] 图 1为现有的消除显示面板亮度不均的取样原理示意图。
[0038] 图 2为本申请一实施例中一种显示面板的亮度测量方法的取得多个为 8*8个像素 的矩形区域的四个直角点的示意图。
[0039] 图 3为本申请一实施例中一种显示面板的亮度测量方法的取得多个为 4*4个像素 的矩形区域的四个直角点的示意图。
[0040] 图 4为本申请一实施例中于水平方向上以间隔 2个像素取一个直角点的示意图。
[0041] 图 5为本申请一实施例中取得在水平方向上显示面板亮度不均边界上的二边界 点示意图。
[0042] 图 6为本申请一实施例中一种显示面板的亮度测量方法的步骤图。
本发明的实施方式
[0043] 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, 本领域普通技术人员在没有做出创造性劳动前 提下所获得的所有其他实施例, 都属于本申请保护的范围。
[0044] 应当理解, 当在本说明书和所附权利要求书中使用吋, 术语"包括"和"包含"指 示所描述特征、 整体、 步骤、 操作、 元素和 /或组件的存在, 但并不排除一个或 多个其它特征、 整体、 步骤、 操作、 元素、 组件和 /或其集合的存在或添加。
[0045] 图 2为本申请一实施例中一种显示面板的亮度测量方法的取得多个为 8*8个像素 的矩形区域的四个直角点的示意图; 图 3为本申请一实施例中一种显示面板的亮 度测量方法的取得多个为 4*4个像素的矩形区域的四个直角点的示意图; 图 4为 本申请一实施例中于水平方向上以间隔 2个像素取一个直角点的示意图; 图 5为 本申请一实施例中取得在水平方向上显示面板亮度不均边界上的二边界点示意 图; 图 6为本申请一实施例中一种显示面板的亮度测量方法的步骤图。
[0046] 请参照图 2至图 6, 本申请实施例提供的一种显示面板的亮度测量方法, 该方法 包括以下步骤:
[0047] 步骤 Sl、 对显示面板进行拍摄, 取得显示面板的多个第一矩形区域的四个直角 点, 例如: 图 2中所示的 Pl、 P8、 P16、 Nl、 N8、 N16的亮度值。
[0048] 在本申请实施例中, 用于对显示面板进行拍摄的亮度获取模块可为相机, 所述 第一矩形区域可以为 8*8个像素的矩形区域, 亮度获取模块取得的直角点 P1的亮 度值为 200nits (亮度单位) 、 直角点 P8的亮度值为 50nits、 直角点 P16的亮度值 为 200nits、 直角点 N1的亮度值为 200nits、 直角点 N8的亮度值为 50nits、 直角点 N 16的亮度值为 200nits。
[0049] 步骤 S2、 获取所述多个直角点 (例如图 2中所示的 Pl、 P8、 P16、 Nl、 N8、 Nl
6) 的亮度值并进行水平方向上彼此相邻的二直角点 (PI与 P8)、 (P16与 P8)的亮度 值的差异计算, 以获得多个差异值。
[0050] 在本申请实施例中, 是通过控制模块来进行水平方向上彼此相邻的二直角点 (P
1与 P8)、 (P16与 P8)的亮度值的差异计算, 以获得此二直角点 P1与 P8差异值为 150 nits , 另二直角点 P16与 P8差异值为 150 nits。
[0051] 步骤 S3、 判断所述多个差异值是否大于标准值。
[0052] 在本申请实施例中, 标准值可为亮度值的差异, 单位与亮度值相同, 例如标准 值可设定为 110 nits, 因此控制模块可判断所述多个差异值 (直角点 PI与直角点 P8 的亮度值的差异、 直角点 P16与直角点 P8的亮度值的差异)是否大于标准值 110 nitso
[0053] 步骤 S4、 若任一所述多个差异值大于标准值, 则控制模块控制亮度获取模块取 得显示面板的多个更小面积 (例如: 4*4个像素)的矩形区域的四个直角点 (例如 图 3所示的 Pl、 P4、 P8、 P12、 P16等) 的亮度值。
[0054] 在本申请实施例中, 直角点 P1与直角点 P8的亮度值的差异、 直角点 P16与直角 点 P8的亮度值的差异皆大于标准值 110 nits , 因此控制模块控制亮度获取模块取 得显示面板的多个更小面积 (4*4个像素)的矩形区域的四个直角点 Pl、 P4、 P8、 P 12、 P16等的亮度值 (如图 3所示), 而亮度获取模块取得的直角点 P1的亮度值为 20 Onits、 直角点 P8的亮度值为 50nits、 直角点 P16的亮度值为 200nits、 直角点 P4的 亮度值为 50nits、 直角点 P12的亮度值为 200nits。
[0055] 再重复步骤 S2、 进行水平方向上彼此相邻的二直角点 (PI与 P4)、 (P4与 P8)、 (P8 与 P12)
、 (P12与 P16)的亮度值的差异计算, 以获得此二直角点 P1与 P4差异值为 150 nits , 二直角点 P4与 P8差异值为 O nits , 二直角点 P8与 P12差异值为 150 nits , 二直角 点 P12与 P16差异值为 0 nits。
[0056] 再重复步骤 S3、 判断所述多个差异值 (P1与 P4的亮度值的差异、 P4与 P8的亮度 值的差异、 P8与 P12的亮度值的差异、 P12与 P16的亮度值的差异)是否大于标准 值 110 nits。
[0057] 再重复步骤 S4、 直角点 PI与直角点 P4的亮度值的差异、 直角点 P8与直角点 P12 的亮度值的差异皆大于标准值 110
nits , 因此再取得显示面板的多个更小面积 (2*2个像素)的矩形区域的四个直角点 Pl、 P2、 P4、 P6、 P8、 P10、 P12、 P14、 P16等的亮度值 (图 4仅示出于水平方向 上以间隔 2个像素取一个直角点), 而亮度获取模块取得的直角点 P1的亮度值为 20 Onits 直角点 P8的亮度值为 50nits、 直角点 P16的亮度值为 200nits、 直角点 P4的 亮度值为 50nits、 直角点 P12的亮度值为 200nits、 直角点 P2的亮度值为 100nits、 直 角点 P6的亮度值为 50nits、 直角点 P10的亮度值为 100nits、 直角点 P14的亮度值为
200nits。
再重复步骤 S3、 判断所述多个差异值 (直角点 P1与直角点 P2的亮度值的差异、 直角点 P2与直角点 P4的亮度值的差异、 直角点 P4与直角点 P6的亮度值的差异、 直角点 P6与直角点 P8的亮度值的差异、 直角点 P8与直角点 P10的亮度值的差异、 直角点 P10与直角点 P12的亮度值的差异、 直角点 P12与直角点 P14的亮度值的差 异、 直角点 P14与直角点 P16的亮度值的差异)是否大于标准值 110 nits。
[0059] 步骤 S5、 若所述多个差异值皆小于标准值 110 nits, 则判断多个差异值中较大的 二差异值, 取得二差异值所对应的亮度值较低的直角点 P2与 P10, 以取得在水平 方向上显示面板的亮度不均边界上的二边界点 P2与 P10。
[0060] 在本申请实施例中, 当所有差异值皆小于标准值 110 nits吋, 判断多个差异值( 二直角点 P1与 P2差异值为 100 nits , 二直角点 P2与 P4差异值为 50
nits , 二直角点 P4与 P6差异值为 Onits, 二直角点 P6与 P8差异值为 Onits , 二直角点 P8与 P10差异值为 50nits, 二直角点 P10与 P12差异值为 lOOnits , 二直角点 P12与 PI 4差异值为 O nits, 二直角点 P14与 P16差异值为 0
nits)中较大的二差异值 (二直角点 P1与 P2差异值为 100 nits , 二直角点 P10与 P12差 异值为 lOOnits), 取得二差异值所对应的亮度值较低的直角点 P2与 P10, 以取得在 水平方向上显示面板的亮度不均边界上的二边界点 P2与 P10。
[0061] 在一些实施例中, 所述显示面板的多个矩形区域的最小面积可为 1*1个像素。
[0062] 在具体实施例中, 进一步包括: 步骤 S6、 刪除其余直角点 Pl、 P4、 P6、 P8、 P 12、 P14、 P16的亮度值, 仅对二边界点 P2与 P10进行亮度补偿计算即可, 藉此可 进一步减少计算量和最终的数据存储量。 当然本申请实施例只举例了进行水平 方向上的精细取样, 按照相同的过程也可以进行垂直方向上的精细取样控制, 达到更精准的显示面板亮度不均补偿效果。 而上述获取直角点的亮度值、 判断 、 计算等动作均可由控制模块等计算单元来实现。
[0063] 在具体实施例中, 本申请实施例提供的一种显示面板的亮度测量方法可应用于 LCD显示显示面板、 OLED显示显示面板、 QLED显示显示面板、 曲面显示显示 面板或其他显示显示面板中。 例如: 应用于 LCD显示显示面板中, 请再参照图 2 至图 6, 本申请实施例提供的一种消除 LCD显示显示面板亮度不均的动态取样方 法, 该方法包括以下步骤:
[0064] 步骤 Sl、 对 LCD显示显示面板进行拍摄, 取得 LCD显示显示面板的多个矩形区 域的四个直角点的亮度值, 例如图 2所示的 8*8个像素的矩形区域的四个直角点 P 1、 P8、 P16、 Nl、 N8、 N16的亮度值。 [0065] 在本申请实施例中, 用于对 LCD显示显示面板进行拍摄的亮度获取模块可为相 机, 亮度获取模块取得的直角点 P1的亮度值为 200nits、 直角点 P8的亮度值为 50ni ts、 直角点 P16的亮度值为 200nits、 直角点 N1的亮度值为 200nits、 直角点 N8的亮 度值为 50nits、 直角点 N16的亮度值为 200nits。
[0066] 步骤 S2、 获取所述多个直角点 (例如图 2所示的 Pl、 P8、 P16、 Nl、 N8、 N16
) 的亮度值并进行水平方向上彼此相邻的二直角点 (PI与 P8)、 (P16与 P8)的亮度 值的差异计算, 以获得多个差异值。
[0067] 在本申请实施例中, 可通过控制模块进行水平方向上彼此相邻的二直角点 (P1 与 P8)、 (P16与 P8)的亮度值的差异计算, 以获得此二直角点 P1与 P8差异值为 150 nits , 另二直角点 P16与 P8差异值为 150 nits。
[0068] 步骤 S3、 判断所述多个差异值是否大于标准值。
[0069] 在本申请实施例中, 标准值可为亮度值的差异, 单位与亮度值相同, 例如标准 值可设定为 110 nits, 因此可判断所述多个差异值 (直角点 PI与直角点 P8的亮度值 的差异、 直角点 P16与直角点 P8的亮度值的差异)是否大于标准值 110 nits。
[0070] 步骤 S4、 若任一所述多个差异值大于标准值, 则取得显示面板的多个更小面积 (例如 4*4个像素)的矩形区域的四个直角点 (例如图 3所示的 Pl、 P4、 P8、 P12、 P 16等) 的亮度值。
[0071] 在本申请实施例中, 直角点 P1与直角点 P8的亮度值的差异、 直角点 P16与直角 点 P8的亮度值的差异皆大于标准值 110 nits , 因此再取得 LCD显示显示面板的多 个更小面积 (4*4个像素)的矩形区域的四个直角点 Pl、 P4、 P8、 P12、 P16等的亮 度值 (如图 3所示), 而亮度获取模块取得的直角点 P1的亮度值为 200nits、 直角点 P 8的亮度值为 50nits、 直角点 P16的亮度值为 200nits、 直角点 P4的亮度值为 50nits、 直角点 P12的亮度值为 200nits。
[0072] 再重复步骤 S2、 进行水平方向上彼此相邻的二直角点 (PI与 P4)、 (P4与 P8)、 (P8 与 P12)
、 (P12与 P16)的亮度值的差异计算, 以获得此二直角点 P1与 P4差异值为 150 nits , 二直角点 P4与 P8差异值为 O nits , 二直角点 P8与 P12差异值为 150 nits , 二直角 点 P12与 P16差异值为 0 nits。 [0073] 再重复步骤 S3、 判断所述多个差异值 (PI与 P4的亮度值的差异、 P4与 P8的亮度 值的差异、 P8与 P12的亮度值的差异、 P12与 P16的亮度值的差异)是否大于标准 值 110 nits。
[0074] 再重复步骤 S4、 直角点 PI与直角点 P4的亮度值的差异、 直角点 P8与直角点 P12 的亮度值的差异皆大于标准值 110 nits, 因此取得 LCD显示显示面板的多个更小 面积 (2*2个像素)的矩形区域的四个直角点 Pl、 P2、 P4、 P6、 P8、 P10、 P12、 PI 4、 P16等的亮度值 (图 4仅示出于水平方向上以间隔 2个像素取一个直角点), 而亮 度获取模块取得的直角点 P1的亮度值为 200nits、 直角点 P8的亮度值为 50nits、 直 角点 P16的亮度值为 200nits、 直角点 P4的亮度值为 50nits、 直角点 P12的亮度值为 200nits、 直角点 P2的亮度值为 lOOnits、 直角点 P6的亮度值为 50nits、 直角点 P10 的亮度值为 lOOnits、 直角点 P14的亮度值为 200nits。
[0075] 再重复步骤 S3、 判断所述多个差异值 (直角点 P1与直角点 P2的亮度值的差异、 直角点 P2与直角点 P4的亮度值的差异、 直角点 P4与直角点 P6的亮度值的差异、 直角点 P6与直角点 P8的亮度值的差异、 直角点 P8与直角点 P10的亮度值的差异、 直角点 P10与直角点 P12的亮度值的差异、 直角点 P12与直角点 P14的亮度值的差 异、 直角点 P14与直角点 P16的亮度值的差异)是否大于标准值 110 nits。
[0076] 步骤 S5、 若所述多个差异值皆小于标准值 110 nits, 则判断多个差异值中较大的 二差异值, 取得二差异值所对应的亮度值较低的直角点 P2与 P10, 以取得在水平 方向上显示面板的亮度不均边界上的二边界点 P2与 P10。
[0077] 在本申请实施例中, 当所有差异值皆小于标准值 110 nits吋, 判断多个差异值( 二直角点 P1与 P2差异值为 100 nits , 二直角点 P2与 P4差异值为 50
nits , 二直角点 P4与 P6差异值为 Onits, 二直角点 P6与 P8差异值为 Onits , 二直角点 P8与 P10差异值为 50nits, 二直角点 P10与 P12差异值为 lOOnits , 二直角点 P12与 PI 4差异值为 O nits, 二直角点 P14与 P16差异值为 0
nits)中较大的二差异值 (二直角点 P1与 P2差异值为 100 nits , 二直角点 P10与 P12差 异值为 lOOnits), 取得二差异值所对应的亮度值较低的直角点 P2与 P10, 以取得在 水平方向上显示面板的亮度不均边界上的二边界点 P2与 P10。
[0078] 在一些实施例中, 所述 LCD显示显示面板的多个矩形区域的最小面积可为 1*1 个像素。
[0079] 在具体实施例中, 进一步包括: 步骤 S6、 刪除其余直角点 Pl、 P4、 P6、 P8、 P 12、 P14、 P16的亮度值, 仅对二边界点 P2与 P10进行亮度补偿计算即可, 藉此可 进一步减少计算量和最终的数据存储量。 当然本申请实施例只举例了进行水平 方向上的精细取样, 按照相同的过程也可以进行垂直方向上的精细取样控制, 达到更精准的 LCD显示显示面板亮度不均补偿效果。 此外, 上述获取直角点的 亮度值、 判断、 计算等动作均可由控制模块来实现。
[0080] 以上所述, 仅为本申请的具体实施方式, 但本申请的保护范围并不局限于此, 任何熟悉本技术领域的技术人员在本申请揭露的技术范围内, 可轻易想到各种 等效的修改或替换, 这些修改或替换都应涵盖在本申请的保护范围之内。 因此 , 本申请的保护范围应以权利要求的保护范围为准。

Claims

权利要求书
[权利要求 1] 一种显示面板的亮度测量方法, 其特征在于, 包括:
对显示面板进行拍摄, 取得所述显示面板的多个第一矩形区域的四个 直角点的亮度值;
获取所述多个直角点的亮度值并进行一方向上彼此相邻的二直角点的 亮度值的差异计算, 以获得多个差异值;
判断所述多个差异值是否大于一标准值, 若任一所述多个差异值大于 所述标准值, 则获取所述显示面板的多个第二矩形区域的四个直角点 的亮度值, 其中所述多个第二矩形区域的面积小于所述多个第一矩形 区域的面积;
针对第二矩形区域的四个直角点的亮度值, 进行所述方向上彼此相邻 的二直角点的亮度值的差异计算, 以获得所述多个差异值, 判断所述 多个差异值是否大于所述标准值, 若任一所述多个差异值仍大于所述 标准值, 则获取所述显示面板的较所述多个第二矩形区域的面积更小 的多个更小面积的矩形区域的四个直角点的亮度值, 并针对所述多个 更小面积的矩形区域的四个直角点的亮度值, 进行所述方向上彼此相 邻的二直角点的亮度值的差异计算, 以获得所述多个差异值, 判断所 述多个差异值是否大于所述标准值, 直至判断所述多个差异值均小于 或等于所述标准值;
当所述多个差异值均小于或等于所述标准值吋, 则判断所述多个差异 值中较大的二差异值, 取得所述二差异值所对应的亮度值较低的直角 点, 以取得在所述方向上所述显示面板的亮度不均边界上的二边界点
[权利要求 2] 如权利要求 1所述的方法, 其特征在于, 所述多个第一矩形区域为 8*8 个像素。
[权利要求 3] 如权利要求 1所述的方法, 其特征在于, 所述多个第二矩形区域为 4*4 个像素。
[权利要求 4] 如权利要求 1所述的方法, 其特征在于, 所述多个更小面积的矩形区 域为 2*2个像素或 1*1个像素。
[权利要求 5] 如权利要求 4所述的方法, 其特征在于, 所述矩形区域的最小面积为 1
*1个像素。
[权利要求 6] 如权利要求 1所述的方法, 其特征在于, 进一步对所述二边界点进行 亮度补偿计算。
[权利要求 7] 如权利要求 1所述的方法, 其特征在于, 所述方向为水平方向。
[权利要求 8] 如权利要求 1所述的方法, 其特征在于, 所述方向为垂直方向。
[权利要求 9] 如权利要求 1所述的方法, 其特征在于, 所述方法进一步包括当取得 所述二边界点吋, 则刪除其余直角点的亮度值。
[权利要求 10] 一种显示面板的亮度测量方法, 其特征在于, 包括:
对显示面板进行拍摄, 取得所述显示面板的多个第一矩形区域的四个 直角点的亮度值;
获取所述多个直角点的亮度值并进行一方向上彼此相邻的二直角点的 亮度值的差异计算, 以获得多个差异值;
判断所述多个差异值是否大于一标准值, 若任一所述多个差异值大于 所述标准值, 则获取所述显示面板的多个第二矩形区域的四个直角点 的亮度值, 其中所述多个第二矩形区域的面积小于所述多个第一矩形 区域的面积;
针对第二矩形区域的四个直角点的亮度值进行所述方向上彼此相邻的 二直角点的亮度值的差异计算, 以获得所述多个差异值, 判断所述多 个差异值是否大于所述标准值, 若任一所述多个差异值仍大于所述标 准值, 则获取所述显示面板的较所述多个第二矩形区域的面积更小的 多个更小面积的矩形区域的四个直角点的亮度值, 并针对所述多个更 小面积的矩形区域的四个直角点的亮度值, 进行所述方向上彼此相邻 的二直角点的亮度值的差异计算, 以获得所述多个差异值, 判断所述 多个差异值是否大于所述标准值, 直至判断所述多个差异值均小于或 等于所述标准值;
当所述多个差异值均小于或等于所述标准值吋, 则判断所述多个差异 值中较大的二差异值, 取得所述二差异值所对应的亮度值较低的直角 点, 以取得在所述方向上所述显示面板的亮度不均边界上的二边界点 对所述二边界点进行补偿数据的计算。
[权利要求 11] 如权利要求 10所述的方法, 其特征在于, 所述多个第一矩形区域为 8*
8个像素。
[权利要求 12] 如权利要求 10所述的方法, 其特征在于, 所述多个第二矩形区域为 4*
4个像素。
[权利要求 13] 如权利要求 10所述的方法, 其特征在于, 所述多个更小面积的矩形区 域为 2*2个像素或 1*1个像素。
[权利要求 14] 如权利要求 13所述的方法, 其特征在于, 所述矩形区域的最小面积为
1*1个像素。
[权利要求 15] 如权利要求 10所述的方法, 其特征在于: 所述方向为水平方向。
[权利要求 16] 如权利要求 10所述的方法, 其特征在于: 所述方向为垂直方向。
[权利要求 17] 如权利要求 10所述的方法, 其特征在于: 所述方法进一步包括当取得 所述二边界点吋, 则刪除其余直角点的亮度值。
[权利要求 18] 一种消除显示面板亮度不均的动态取样装置, 其特征在于, 包括: 亮度获取模块, 对一显示面板进行拍摄, 所述亮度获取模块取得所述 显示面板的多个第一矩形区域的四个直角点的亮度值;
控制模块, 与所述亮度获取模块电性连接, 获取所述多个直角点的亮 度值并进行一方向上彼此相邻的二直角点的亮度值的差异计算, 以获 得多个差异值;
其中所述控制模块判断所述多个差异值是否大于一标准值, 若任一所 述多个差异值大于所述标准值, 则所述控制模块控制所述亮度获取模 块获取所述显示面板的多个第二矩形区域的四个直角点的亮度值, 其 中所述多个第二矩形区域的面积小于所述多个第一矩形区域的面积; 所述控制模块针对第二矩形区域的四个直角点的亮度值进行所述方向 上彼此相邻的二直角点的亮度值的差异计算, 以获得所述多个差异值 , 所述控制模块判断所述多个差异值是否大于所述标准值, 若任一所 述多个差异值仍大于所述标准值, 则所述控制模块控制所述亮度获取 模块获取所述显示面板的较所述多个第二矩形区域的面积更小的多个 更小面积的矩形区域的四个直角点的亮度值, 并针对所述多个更小面 积的矩形区域的四个直角点的亮度值进行所述方向上彼此相邻的二直 角点的亮度值的差异计算, 以获得所述多个差异值, 所述控制模块判 断所述多个差异值是否大于所述标准值, 直至判断所述多个差异值均 小于或等于所述标准值;
当所述多个差异值均小于或等于所述标准值吋, 则所述控制模块判断 所述多个差异值中较大的二差异值, 取得所述二差异值所对应的亮度 值较低的直角点, 以取得在所述方向上所述显示面板的亮度不均边界 上的二边界点。
[权利要求 19] 如权利要求 18所述的动态取样装置, 其特征在于, 所述控制模块进一 步对所述二边界点进行亮度补偿计算。
[权利要求 20] 如权利要求 18所述的动态取样装置, 其特征在于, 当所述控制模块取 得所述二边界点吋, 则刪除其余直角点的亮度值。
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CN107393489B (zh) * 2017-09-05 2019-02-15 惠科股份有限公司 消除面板亮度不均的动态取样方法
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001142448A (ja) * 1999-09-02 2001-05-25 Hitachi Ltd 表示装置
CN1753061A (zh) * 2004-09-22 2006-03-29 索尼株式会社 图像显示单元与校正图像显示单元中的亮度的方法
KR20070099331A (ko) * 2006-04-04 2007-10-09 엘지전자 주식회사 영상 보정 장치 및 영상 보정 방법
CN101101237A (zh) * 2007-08-21 2008-01-09 友达光电(苏州)有限公司 测量发光画面亮度均匀性的方法
CN101312545A (zh) * 2008-07-02 2008-11-26 中兴通讯股份有限公司 图像检测方法和装置
CN101667418A (zh) * 2009-09-25 2010-03-10 深圳丹邦投资集团有限公司 一种显示屏显示亮度补偿的方法及其系统
CN105702231A (zh) * 2016-04-20 2016-06-22 西安交通大学 一种获取像素亮度补偿目标的方法
CN106328053A (zh) * 2016-10-19 2017-01-11 深圳市华星光电技术有限公司 一种OLED Mura补偿的最高亮度优化方法及装置
CN106991981A (zh) * 2017-05-02 2017-07-28 深圳市华星光电技术有限公司 mura补偿数据参考值位置的选取方法
CN107393489A (zh) * 2017-09-05 2017-11-24 惠科股份有限公司 一种消除面板亮度不均的动态取样方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001142448A (ja) * 1999-09-02 2001-05-25 Hitachi Ltd 表示装置
CN1753061A (zh) * 2004-09-22 2006-03-29 索尼株式会社 图像显示单元与校正图像显示单元中的亮度的方法
KR20070099331A (ko) * 2006-04-04 2007-10-09 엘지전자 주식회사 영상 보정 장치 및 영상 보정 방법
CN101101237A (zh) * 2007-08-21 2008-01-09 友达光电(苏州)有限公司 测量发光画面亮度均匀性的方法
CN101312545A (zh) * 2008-07-02 2008-11-26 中兴通讯股份有限公司 图像检测方法和装置
CN101667418A (zh) * 2009-09-25 2010-03-10 深圳丹邦投资集团有限公司 一种显示屏显示亮度补偿的方法及其系统
CN105702231A (zh) * 2016-04-20 2016-06-22 西安交通大学 一种获取像素亮度补偿目标的方法
CN106328053A (zh) * 2016-10-19 2017-01-11 深圳市华星光电技术有限公司 一种OLED Mura补偿的最高亮度优化方法及装置
CN106991981A (zh) * 2017-05-02 2017-07-28 深圳市华星光电技术有限公司 mura补偿数据参考值位置的选取方法
CN107393489A (zh) * 2017-09-05 2017-11-24 惠科股份有限公司 一种消除面板亮度不均的动态取样方法

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