WO2024178902A1 - 显示面板的亮度补偿方法及亮度补偿装置及显示装置 - Google Patents

显示面板的亮度补偿方法及亮度补偿装置及显示装置 Download PDF

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Publication number
WO2024178902A1
WO2024178902A1 PCT/CN2023/108831 CN2023108831W WO2024178902A1 WO 2024178902 A1 WO2024178902 A1 WO 2024178902A1 CN 2023108831 W CN2023108831 W CN 2023108831W WO 2024178902 A1 WO2024178902 A1 WO 2024178902A1
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Prior art keywords
brightness
display area
compensation
sub
data
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PCT/CN2023/108831
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English (en)
French (fr)
Inventor
陈林
杨永宾
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Kunshan Govisionox Optoelectronics Co Ltd
Hefei Visionox Technology Co Ltd
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Kunshan Govisionox Optoelectronics Co Ltd
Hefei Visionox Technology Co Ltd
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Publication of WO2024178902A1 publication Critical patent/WO2024178902A1/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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • 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

Definitions

  • the embodiments of the present application relate to the field of display technology, for example, to a brightness compensation method and a brightness compensation device of a display panel and a display device.
  • the embodiments of the present application provide a brightness compensation method and a brightness compensation device for a display panel and a display device to solve the problem that the brightness of the display panel is uneven during display, which affects the display effect of the display panel.
  • an embodiment of the present application provides a brightness compensation method for a display panel, including: obtaining brightness information of the display panel under a preset gray scale, wherein the brightness information of the display panel includes white field brightness data and brightness data of sub-pixels under a preset binding point gray scale; determining the white field brightness trend of the display panel based on the white field brightness data; calculating the compensation ratio parameters corresponding to the sub-pixels of the display panel based on the white field brightness trend; fusing the brightness data of the sub-pixels with the compensation ratio parameters corresponding to the sub-pixels to generate brightness compensation data corresponding to the sub-pixels, wherein the brightness compensation data is used to perform voltage drop compensation and uneven display (Mura) compensation on the display panel.
  • Mura uneven display
  • an embodiment of the present application provides a brightness compensation device for a display panel, comprising: a brightness acquisition module, configured to acquire brightness information of a display panel under a preset grayscale, wherein the brightness information of the display panel includes white field brightness data and brightness data of sub-pixels under a preset binding point grayscale; a brightness trend determination module, configured to determine the white field brightness trend of the display panel according to the white field brightness data; a compensation ratio calculation module, configured to calculate the compensation ratio parameters corresponding to the sub-pixels of the display panel according to the white field brightness trend; a data fusion module, configured to fuse the brightness data of the sub-pixels with the compensation ratio parameters corresponding to the sub-pixels to generate the sub-pixels.
  • the brightness compensation data corresponds to the pixel, wherein the brightness compensation data is used to perform voltage drop compensation and Mura compensation on the display panel.
  • an embodiment of the present application provides a display device, including: a display panel and a brightness compensation device for the display panel provided in the second aspect.
  • the brightness compensation method of the display panel obtaineds the brightness information of the display panel under the preset gray scale, and determines the white field brightness trend of the display panel according to the white field brightness data. According to the white field brightness trend, the compensation ratio parameter corresponding to the sub-pixel of the display panel is calculated, and the brightness data of the sub-pixel is merged with the corresponding compensation ratio parameter to generate brightness compensation data.
  • This arrangement enables the display screen of the display panel to be more accurately compensated by the brightness compensation data.
  • the brightness compensation data is processed to improve the voltage drop compensation effect of the display panel and improve the display effect of the display panel.
  • the brightness compensation method of the display panel provided in the present embodiment merges the voltage drop compensation and Mura compensation to obtain the brightness compensation data. Based on the brightness compensation method provided in the present embodiment, the voltage drop compensation and Mura compensation of the display panel can be realized without a separate compensation process and hardware cost, which better improves the display uniformity of the display panel and improves the display effect of the display panel.
  • FIG1 is a flow chart of a brightness compensation method for a display panel provided in an embodiment of the present application.
  • FIG2 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application.
  • FIG3 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application.
  • FIG3A is a schematic diagram of area division of a display panel provided in an embodiment of the present application.
  • FIG4 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application.
  • FIG5 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application.
  • FIG6 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application.
  • FIG6A is a curve diagram of compensation ratio parameter calculation under different grayscales provided by this embodiment.
  • FIG7 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application.
  • FIG8 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application.
  • FIG9 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application.
  • FIG. 10 is a flow chart of a method for obtaining a compensation gain value in a brightness compensation method for a display panel provided in an embodiment of the present application;
  • FIG11 is a schematic structural diagram of a brightness compensation device for a display panel provided in an embodiment of the present application.
  • FIG. 12 is a schematic diagram of the structure of a display device provided in an embodiment of the present application.
  • Fig. 1 is a flow chart of a brightness compensation method for a display panel provided in an embodiment of the present application.
  • the brightness compensation method for a display panel provided in an embodiment of the present application includes the following steps.
  • the white field brightness data is the brightness data when the display panel displays a white screen.
  • the white field brightness data is the brightness data of the R/G/B sub-pixels under the W255 grayscale.
  • the brightness data under the preset binding point grayscale is the brightness data of the R/G/B sub-pixels under the preset binding point grayscale.
  • the preset binding point grayscale may include at least one of 16 grayscales, 32 grayscales, 64 grayscales, 128 grayscales, and 255 grayscales.
  • a W255 grayscale image can be generated by an image generator, and the W255 grayscale image can be written into a display panel to obtain white field brightness data of the display panel. It should be noted that the brightness data of the R/G/B sub-pixels of the display panel at the W255 grayscale can be brightness data obtained by a brightness acquisition module.
  • the image generator can generate images of the display panel at different binding point grayscales, and write the images of the display panel at different binding point grayscales into the display panel to obtain the brightness data of the R/G/B sub-pixels of the display panel at the preset binding point grayscale.
  • the brightness data of the R/G/B sub-pixels of the display panel at the preset binding point grayscale can be the brightness data obtained by the brightness acquisition module.
  • S102 Determine a white field brightness trend of the display panel according to the white field brightness data.
  • the white field brightness trend of the display panel is determined.
  • the white field brightness trend characterizes the change trend of the brightness data of the display panel when displaying a picture under the W255 grayscale.
  • the white field brightness trend is the brightness change law of the display panel when the display screen is uneven due to voltage drop, or the brightness change law of the display screen when the display screen is uneven due to other compensation reasons.
  • the compensation ratio parameters corresponding to the sub-pixels of the display panel are calculated.
  • the compensation ratio parameters include the difference information between multiple sub-pixels.
  • the compensation ratio of the sub-pixel with higher brightness can be set. The smaller the rate parameter is, the larger the compensation rate parameter of the sub-pixel with lower brightness is.
  • the brightness data of the sub-pixels of the display panel are merged with the corresponding compensation ratio parameters to generate brightness compensation data, which can be obtained by summing or multiplying the brightness data of the sub-pixels with the corresponding compensation ratio parameters.
  • the brightness compensation data is used to compensate for voltage drop and Mura of the display panel, so that the display panel has a better display effect.
  • the brightness compensation method of the display panel provided in the present embodiment obtains the brightness information of the display panel under a preset gray scale, and determines the white field brightness trend of the display panel according to the white field brightness data. According to the white field brightness trend, the compensation ratio parameter corresponding to the sub-pixel of the display panel is calculated, and the brightness data of the sub-pixel is merged with the corresponding compensation ratio parameter to generate brightness compensation data.
  • This arrangement enables the display screen of the display panel to be more accurately compensated by the brightness compensation data.
  • the brightness compensation data is processed to improve the voltage drop compensation effect of the display panel and improve the display effect of the display panel.
  • the brightness compensation method of the display panel provided in the present embodiment merges the voltage drop compensation and Mura compensation to obtain the brightness compensation data. Based on the brightness compensation method provided in the present embodiment, the voltage drop compensation and Mura compensation of the display panel can be realized without additional compensation process and hardware cost, which better improves the display uniformity of the display panel and improves the display effect of the display panel.
  • Fig. 2 is a flow chart of another brightness compensation method for a display panel provided in an embodiment of the present application. Based on the above embodiment, referring to Fig. 2, the brightness compensation method for a display panel provided in an embodiment of the present application includes the following steps.
  • the sub-pixels include at least three sub-pixels of different colors, such as red sub-pixels, green sub-pixels, and blue sub-pixels.
  • the brightness acquisition module can more accurately acquire the brightness data of the sub-pixels of the display panel.
  • the brightness acquisition module is used to acquire the white field brightness data of the sub-pixels when the display panel displays a white picture, so that the white field brightness data of the sub-pixels can be better collected.
  • the brightness acquisition module includes a brightness meter or other instruments that can acquire brightness data.
  • S202 Obtain brightness data of sub-pixels at a preset binding point grayscale through a brightness acquisition module.
  • the picture at the preset binding point grayscale is written into the display panel, and the display panel displays the picture.
  • the brightness acquisition module acquires the brightness data of the sub-pixel at the preset binding point grayscale.
  • Fig. 3 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application. Based on the above embodiment, referring to Fig. 3, the method for compensating brightness of a display panel provided in an embodiment of the present application includes the following steps.
  • S301 obtaining brightness information of a display panel at a preset gray scale; wherein the brightness information of the display panel includes white field brightness data and brightness data of sub-pixels at a preset binding point gray scale.
  • FIG3A is a schematic diagram of the area division of a display panel provided in an embodiment of the present application.
  • the average brightness data of the multiple sub-pixels in each display area is generated.
  • the white field brightness data of the multiple sub-pixels in the first display area L1 is averaged to obtain the average brightness data of the first display area L1.
  • the average brightness data of the second display area L2 to the average brightness data of the ninth display area L9 are calculated respectively.
  • the white field brightness trend of the display panel is determined according to the size and distribution law of the average brightness data of the first display area L1 to the average brightness data of the ninth display area L9.
  • the white field brightness trend may include: uneven brightness along the column direction of the display panel, or uneven brightness along the row direction of the display panel, or a brightness trend in which the middle area of the display panel is bright and the peripheral area is dark.
  • FIG. 4 is a flow chart of another method for brightness compensation of a display panel provided in an embodiment of the present application. Based on the above embodiment, referring to FIG4 , the brightness compensation method of the display panel provided in the embodiment of the present application includes the following steps.
  • S402 Determine a white field brightness trend of the display panel according to the white field brightness data.
  • S403 Select a target display area according to the white field brightness trend, wherein the target display area includes at least one display area.
  • the target display area 10 may include display areas located in the same column, for example, the display area in the middle column may be used as the target display area 10, or the display area located in the edge column may be used as the target display area 10, or the target display area 10 may be set to include a single display area, such as the fifth display area L5 located in the middle position of the display panel 300, as the target display area 10.
  • FIG. 3A exemplarily shows a case where the target display area 10 may include display areas located in the same column, and no limitation is made herein.
  • the reference brightness data of the target display area is the average brightness data of a plurality of sub-pixels of the target display area.
  • the reference brightness data of the target display area includes average brightness data of one of the display areas in the target display area.
  • the maximum value, minimum value or middle value of the average brightness data corresponding to at least two display areas in the target display area can be used as the reference brightness data.
  • the compensation ratio parameters of the multiple display areas can be obtained according to the difference or quotient of the reference brightness data of the target display area and the average brightness data of each display area.
  • the compensation ratio parameters of multiple sub-pixels in the same display area can be set to be the same, so that the compensation ratio parameters corresponding to the multiple sub-pixels in the display area are determined according to the compensation ratio parameters of each display area, thereby determining the compensation ratio parameters corresponding to the sub-pixels included in the display panel.
  • FIG. 5 is a flow chart of another method for brightness compensation of a display panel provided in an embodiment of the present application. Based on the above embodiment, referring to FIG5 , the brightness compensation method of the display panel provided in the embodiment of the present application includes the following steps.
  • S502 Determine a white field brightness trend of the display panel according to the white field brightness data.
  • a target display area according to a white field brightness trend, where the target display area includes a display area located at the center of the display panel; or, when the white field brightness trend is uneven brightness along a first direction, the target display area includes at least one column of display areas arranged along the first direction, and optionally, the target display area includes at least one column of display areas arranged along the first direction and located in the middle along a second direction, wherein the first direction is perpendicular to the second direction.
  • the target display area includes a display area located at the center of the display panel.
  • the display area located at the center of the display panel may include a single display area, or the target display area may include at least two display areas.
  • the target display area may be a rectangular area or a circular area, which is not limited here.
  • FIG. 3A exemplarily shows the case where the first direction Y is the column direction and the second direction X is the row direction.
  • the white field brightness trend is uneven brightness along the first direction Y
  • the current of the display panel 300 is generally transmitted along the signal line, and the current is affected by the wiring resistance during the transmission process, resulting in a difference in the magnitude of the current at the far end and the near end of the extension direction of the signal line
  • the pixel circuits connected to the same signal line at the near end and the far end of its extension direction respectively receive a poor uniformity of current, thereby affecting the display effect of the near end and the far end of the display panel 300.
  • the target display area 10 can better characterize the white field brightness trend of the display panel 300.
  • the target display area 10 may include at least one column of display areas arranged along the first direction Y and positioned in the middle along the second direction X, i.e., the row direction, i.e., the target display area 10 includes a column of display areas located in the middle of the display panel 300.
  • the left column and the right column are both compensated according to the white field brightness trend of the target display area 10.
  • the column of display areas located in the middle of the display panel includes the central area of the display panel 300.
  • the other display areas of the display panel 300 are compensated based on the display areas in the middle column with more accurate brightness, so that the compensation effect of the display panel 300 is better, and the display effect of the display panel 300 is further improved.
  • S505 Determine the sub-pixel ratio in each display area according to the compensation ratio parameter of the display area. The corresponding compensation ratio parameter.
  • Fig. 6 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application. Based on the above embodiment, referring to Fig. 6, the method for compensating brightness of a display panel provided in an embodiment of the present application includes the following steps.
  • S601 obtaining brightness information of a display panel at a preset gray scale, wherein the brightness information of the display panel includes white field brightness data and brightness data of sub-pixels at a preset binding point gray scale.
  • S602 Determine a white field brightness trend of the display panel according to the white field brightness data.
  • S603 Select a target display area according to the white field brightness trend, wherein the target display area includes at least one display area.
  • the target display area includes a single display area
  • the target display area when the target display area includes a single display area, for example, the target display area includes the fifth display area L5.
  • the reference brightness data includes the average brightness data of the target display area, that is, the fifth display area L5. According to the quotient of the reference brightness data and the average brightness data of each display area, that is, according to the quotient of the average brightness data of the fifth display area L5 and the average brightness data of each display area, the white field compensation ratio parameter of each display area is obtained.
  • the compensation ratio parameter of each display area under multiple binding point grayscales is calculated.
  • the binding point grayscales that can be set include 16 grayscales, 32 grayscales, 64 grayscales, 128 grayscales, 192 grayscales, and 255 grayscales.
  • An optional real-time method calculates the compensation ratio parameters of each display area at multiple binding point grayscales using the following formula:
  • i is the grayscale value of the binding point
  • Gamma is the preset gamma value, that is, the curvature of the curve
  • Ratio is the compensation ratio parameter, wherein the white field is a white picture displayed by the display panel at a grayscale of 255.
  • the compensation ratio parameter Ratio of the first display area L1 at grayscale 16 is calculated as follows: Ratio 255 is a white field compensation ratio parameter, Ratio 255_1 is a white field compensation ratio parameter of the first display area L1, Gamma_1 is a preset gamma value of the first display area L1, and Ratio 16_1 is a compensation ratio parameter of the first display area L1 at grayscale 16.
  • the compensation ratio parameters Ratio of the first display area L1 to the ninth display area L9 at multiple binding point grayscales such as 16/32/64/128/192/255 grayscales, are calculated respectively.
  • the preset gamma value can be calculated by the following method: based on the white field brightness data and the brightness data of the sub-pixel at the first preset binding point gray scale, the preset gamma value of each display area in the target display area is calculated, wherein the brightness information of the display panel also includes the brightness data of the sub-pixel at the first preset binding point gray scale.
  • the brightness data of the sub-pixel at the first preset binding point grayscale may be brightness data at grayscale 128.
  • the white field brightness data is brightness data of the sub-pixel at grayscale W255.
  • FIG6A is a graph showing the calculation of compensation ratio parameters under different grayscales provided by the present embodiment.
  • the horizontal axis of FIG6A represents the grayscale
  • the vertical axis represents the compensation ratio parameter
  • the curvature of the curve represents the gamma value Gamma.
  • the curvature of the grayscale compensation curve that is, the gamma values of multiple display areas in the target display area, is determined according to the compensation ratio parameters under the grayscale of 128 and the grayscale of W255.
  • the gamma value Gamma_1 of the first display area, the gamma value Gamma_2 of the second display area, ..., and the gamma value Gamma_9 of the ninth display area can be set.
  • the gamma values of multiple display areas can be made more accurate, and multiple display areas can respectively use the gamma value of the display area to calculate the compensation ratio parameters, so that the calculation of the compensation ratio parameters under different grayscales is more accurate, thereby further improving the compensation effect of the display panel.
  • S606 Determine the compensation ratio parameter corresponding to the sub-pixel in each display area according to the compensation ratio parameter of the display area.
  • Fig. 7 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application. Based on the above embodiment, referring to Fig. 7, the method for compensating brightness of a display panel provided in an embodiment of the present application includes the following steps.
  • S701 obtaining brightness information of a display panel at a preset gray scale, wherein the brightness information of the display panel includes white field brightness data and brightness data of sub-pixels at a preset binding point gray scale.
  • S702 Determine a white field brightness trend of the display panel according to the white field brightness data.
  • S703 Select a target display area according to the white field brightness trend, wherein the target display area includes at least one display area.
  • reference brightness data is determined according to a sorting result of average brightness data of at least two display areas within the target display area, wherein the reference brightness data includes maximum average brightness data or minimum average brightness data among the average brightness data of at least two display areas within the target display area.
  • the reference brightness data may include the maximum value, minimum value or middle value of the average brightness data of multiple display areas in the same column of the target display area.
  • the target display area includes the middle column display area, that is, the fourth display area L4, the fifth display area L5, and the sixth display area L6.
  • the minimum value Lmin is obtained by calculating the average brightness data of the fourth display area L4, the average brightness data of the fifth display area L5, and the average brightness data of the sixth display area L6 and comparing them, and the minimum value Lmin is used as the reference brightness data of the target display area.
  • the maximum value Lmax is obtained by calculating the average brightness data of the fourth display area L4, the average brightness data of the fifth display area L5, and the average brightness data of the sixth display area L6 and comparing them, and the maximum value Lmax is used as the reference brightness data of the target display area.
  • S705 Determine a white compensation ratio parameter of each of the at least two display areas in the target display area according to the reference brightness data and the average brightness data of each of the at least two display areas in the target display area.
  • the reference brightness data of the target display area may be divided by the average brightness data of each display area to calculate the white compensation ratio parameter of each display area in the target display area.
  • the target display area 10 includes a fourth display area L4, a fifth display area L5, and a sixth display area L6.
  • the white field compensation ratio parameter Ratio255_4 of the fourth display area L4 average brightness data of the fourth display area L4/minimum value Lmin of average brightness data of multiple display areas in the target display area 10.
  • the white field compensation ratio parameter Ratio255_5 of the fifth display area L5 average brightness data of the fifth display area L5/minimum value Lmin of average brightness data of multiple display areas in the target display area 10.
  • the white field compensation ratio parameter Ratio255_6 of the sixth display area L6 average brightness data of the sixth display area L6/minimum value Lmin of average brightness data of multiple display areas in the target display area 10.
  • the fourth display area L4 in the target display area is calculated in the plurality of binding
  • the white field compensation ratio parameter Ratio255_5 of the fifth display area L5 of the target display area based on the preset gamma value
  • the compensation ratio parameter of the fifth display area L5 in the target display area under multiple binding point grayscales is calculated.
  • the white field compensation ratio parameter Ratio255_6 of the sixth display area L6 of the target display area based on the preset gamma value
  • the compensation ratio parameter of the sixth display area L6 in the target display area under multiple binding point grayscales is calculated.
  • a compensation ratio parameter Ratio of each display area in the target display area at multiple binding point grayscales is calculated by the following formula:
  • i is the grayscale value of the binding point
  • Gamma is the preset gamma value, that is, the curvature of the curve
  • the preset gamma value can be set to the gamma value Gamma_1 of the first display area, the gamma value Gamma_2 of the second display area, ..., or the gamma value Gamma_9 of the ninth display area.
  • Ratio is a compensation ratio parameter, wherein the white field is a white screen displayed by the display panel at a grayscale of 255.
  • the preset gamma value can be obtained by setting it to 2.2 or by the calculation method provided in any of the above embodiments, which is not limited here.
  • the compensation ratio parameters of multiple display areas of the column where the target display area is located at multiple binding point grayscales can be expanded in parallel along the second direction, such as the width direction, into compensation ratio parameters of multiple display areas of the display panel at multiple binding point grayscales. This setting can save the amount of data that needs to be processed during the compensation process and improve the calculation speed of brightness compensation data.
  • the compensation ratio parameters of the fourth display area L4, the fifth display area L5, and the sixth display area L6 of the target display area 10 at multiple binding point grayscales can be extended in parallel along the second direction X to the compensation ratio parameters of the first display area L1, the second display area L2, and the third display area L3 located in the left column of the target display area 10 at multiple binding point grayscales.
  • the compensation ratio parameters of the seventh display area L7, the eighth display area L8, and the ninth display area L9 located in the right column of the target display area 10 can be extended in parallel along the second direction X to the compensation ratio parameters of the seventh display area L7, the eighth display area L8, and the ninth display area L9 located in the right column of the target display area 10 at multiple binding point grayscales.
  • S708 Determine the compensation ratio parameters corresponding to the sub-pixels in each display area according to the compensation ratio parameters of the display area.
  • the compensation ratio parameters of multiple sub-pixels in the same display area can be set to be the same, which can save the amount of data calculated during the compensation process and further improve the calculation speed.
  • determining the compensation ratio parameter corresponding to the sub-pixel in each display area may include: using a bilinear interpolation method to convert each sub-pixel
  • the compensation ratio parameters of a display area under multiple binding point grayscales are expanded to the compensation ratio parameters corresponding to the sub-pixels in each display area.
  • the compensation ratio parameters corresponding to the sub-pixels of the display panel can be obtained more accurately, which can not only ensure better compensation of the brightness of the display panel, but also ensure that the calculation amount of the brightness compensation data is small, further improving the effect of the brightness compensation of the display panel.
  • An optional implementation manner is to fuse the brightness data of the sub-pixel with the compensation ratio parameter corresponding to the sub-pixel to generate brightness compensation data, including: generating brightness compensation data according to the product of the brightness data of the sub-pixel and the compensation ratio parameter corresponding to the sub-pixel.
  • the brightness data of the sub-pixels can be multiplied by the compensation ratio parameters corresponding to the sub-pixels respectively, and the generated brightness compensation data has balanced the display unevenness problem caused by the voltage drop, thereby improving the compensation effect of the brightness compensation data.
  • Fig. 8 is a flow chart of another method for compensating brightness of a display panel provided in an embodiment of the present application. Based on the above embodiment, referring to Fig. 8, the method for compensating brightness of a display panel provided in an embodiment of the present application includes the following steps.
  • S802 Determine a white field brightness trend of the display panel according to the white field brightness data.
  • S805 Perform Mura compensation according to the brightness compensation data.
  • the Demura algorithm process is used for calculation to obtain a compensation value, and the display panel is compensated for Mura according to the compensation value.
  • the brightness compensation method of the display panel provided in this embodiment uses the brightness compensation data integrated with the voltage drop compensation as the initial data for Mura compensation.
  • the voltage drop compensation and Mura compensation of the display panel can be realized by the Demura method in the related technology of the display panel, without the need for a separate compensation process and hardware cost, which better improves the display uniformity of the display panel and further improves the display effect of the display panel.
  • FIG. 9 is a flow chart of another method for brightness compensation of a display panel provided in an embodiment of the present application. Based on the above embodiment, referring to FIG9 , the brightness compensation method of the display panel provided in the embodiment of the present application includes the following steps.
  • S902 Determine a white field brightness trend of the display panel according to the white field brightness data.
  • S904 Obtain a compensation gain value, where the compensation gain value includes a preset fixed gain value or a feedback gain value.
  • the compensation gain value is a preset fixed gain value determined based on compensation experience, or a feedback gain value calculated based on the brightness value of the compensated display panel, and the feedback gain value is a compensation gain value fed back after a brightness compensation is performed on the display panel.
  • the preset fixed gain value can be defined as: 1, 1.01, 1.03, etc.
  • the preset fixed gain value of each display area can be set to be the same.
  • the preset fixed gain value of the fourth display area L4 of the target display area can be set to 1
  • the preset fixed gain value of the fifth display area L5 can be set to 1.01
  • the preset fixed gain value of the sixth display area L6 can be set to 1.03.
  • This arrangement enables the revised compensation ratio parameter to include both the compensation gain value and the compensation ratio parameter. This arrangement enables the revised compensation ratio parameter to better compensate the display panel, thereby improving the voltage drop compensation effect of the display panel.
  • determining a corrected compensation ratio parameter based on the product of the compensation gain value and the compensation ratio parameter corresponding to the sub-pixel may include: determining the corrected compensation ratio parameter corresponding to the sub-pixel based on the product of the compensation gain values of m*n display areas under multiple binding point grayscales and the compensation ratio parameters corresponding to the m*n display areas under multiple binding point grayscales.
  • the compensation gain values of the multiple display areas of the display panel at the multiple binding point grayscales can be expanded along the second direction according to the compensation gain values in the target display area.
  • the compensation gain values of the multiple display areas at the multiple binding point grayscales are multiplied by the compensation ratio parameters corresponding to the multiple display areas at the multiple binding point grayscales to obtain the corrected compensation ratio parameters corresponding to the sub-pixels.
  • the brightness data of the sub-pixel is compared with the corresponding corrected compensation ratio parameter.
  • the method of fusing the compensation ratio parameters to generate the brightness compensation data may include: generating the corrected brightness compensation data according to the product of the corrected compensation ratio parameter corresponding to the sub-pixel and the brightness data of the sub-pixel corresponding to the corrected compensation ratio parameter.
  • the corrected compensation ratio parameter is multiplied by the brightness data of the corresponding sub-pixel.
  • the display panel performs Mura compensation with the corrected brightness compensation data, further improving the voltage drop compensation effect, thereby improving the display effect of the display panel.
  • Figure 10 is a flow chart of a method for obtaining a compensation gain value in a brightness compensation method for a display panel provided in an embodiment of the present application. Based on the above embodiment, referring to Figure 10, when the compensation gain value includes a feedback gain value, the steps for obtaining the compensation gain value provided in this embodiment include the following steps.
  • obtaining white field brightness data of a compensated target display area the target display area includes at least two display areas.
  • the target display area includes the fourth display area L4, the fifth display area L5, and the sixth display area L6.
  • the white field brightness data of the fourth display area L4, the white field brightness data of the fifth display area L5, and the white field brightness data of the sixth display area L6 of the target display area after compensation are obtained.
  • the average brightness data of the fourth display area L4 is obtained.
  • the average brightness data of the fifth display area L5 is obtained.
  • the average brightness data of the sixth display area L6 is obtained.
  • the minimum value of the average brightness data of the fourth display area L4, the average brightness data of the fifth display area L5, and the average brightness data of the sixth display area L6 is calculated to obtain the minimum average brightness data LLmin.
  • the compensation gain values of the multiple display areas in the target display area under the multiple binding point grayscales are calculated.
  • the compensation gain values of the multiple display areas in the target display area under the multiple binding point grayscales can be set to be equal.
  • the compensation gain values of at least two display areas in the target display area under the multiple binding point grayscales are expanded in parallel along the second direction to the compensation gain values of the multiple display areas of the display panel under the multiple binding point grayscales.
  • the compensation gain value of each display area under the multiple binding point grayscales is expanded to the compensation gain value corresponding to the sub-pixel in each display area.
  • the compensation gain value corresponding to the sub-pixel of the display panel can be obtained more accurately, which can not only ensure better feedback compensation for the brightness of the display panel, but also ensure that the calculation amount of the brightness compensation data is small, further improving the effect of the brightness compensation of the display panel.
  • FIG11 is a schematic diagram of the structure of a brightness compensation device for a display panel provided in an embodiment of the present application.
  • the brightness compensation device 100 for a display panel provided in an embodiment of the present application includes: a brightness acquisition module 111, configured to acquire the brightness information of the display panel under a preset grayscale, wherein the brightness information of the display panel includes white field brightness data and brightness data of sub-pixels under a preset binding point grayscale; a brightness trend determination module 112, configured to determine the white field brightness trend of the display panel according to the white field brightness data; a compensation ratio calculation module 113, configured to calculate the compensation ratio parameters corresponding to the sub-pixels of the display panel according to the white field brightness trend; a data fusion module 114, configured to fuse the brightness data of the sub-pixels with the compensation ratio parameters corresponding to the sub-pixels to generate brightness compensation data, wherein the brightness compensation data is used to perform voltage drop compensation and Mura compensation on the display panel.
  • the brightness compensation device of the display panel obtained in this embodiment obtains the brightness information of the display panel under the preset gray scale through the brightness acquisition module, and determines the white field brightness trend of the display panel according to the white field brightness data through the brightness trend determination module.
  • the compensation ratio calculation module calculates the compensation ratio parameter corresponding to the sub-pixel according to the white field brightness trend, and fuses the brightness data of the sub-pixel with the corresponding compensation ratio parameter through the data fusion module to generate brightness compensation data.
  • This arrangement enables the brightness compensation device of the display panel to more accurately compensate the display screen of the display panel through the brightness compensation data, and processes the compensation data before performing Mura compensation, thereby improving the voltage drop compensation effect of the display panel and improving the display effect of the display panel.
  • the voltage drop compensation and Mura compensation of the display panel can be achieved through the Mura compensation method of the display panel in the related art.
  • the brightness compensation device of the display panel provided in this embodiment can simultaneously achieve voltage drop compensation and Mura compensation for the display panel, without the need for a separate compensation process and hardware cost, thereby better improving the display uniformity of the display panel and improving the display effect of the display panel.
  • FIG12 is a schematic diagram of the structure of a display device provided in an embodiment of the present application.
  • the display device 200 provided in an embodiment of the present application includes a display panel 300 and a brightness compensation device 100 for a display panel provided in any of the above embodiments, which will not be described in detail here.
  • the display device provided in this embodiment may include terminal devices such as mobile phones, tablet computers, and wearable devices.

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Abstract

一种显示面板的亮度补偿方法及亮度补偿装置和显示装置。显示面板的亮度补偿方法包括获取预设灰阶下的显示面板的亮度信息(S101)；根据白场亮度数据，确定显示面板的白场亮度趋势(S102)；根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数(S103)；将子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成子像素对应的亮度补偿数据(S104)。

Description

显示面板的亮度补偿方法及亮度补偿装置及显示装置
本申请要求在2023年02月28日提交中国专利局、申请号为202310201506.8的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及显示技术领域，例如涉及一种显示面板的亮度补偿方法及亮度补偿装置及显示装置。
背景技术
随着显示技术的发展，人们对显示面板的要求越来越高。相关技术中的显示面板的所有子像素是由集成电路(Integrated Circuit，IC)端的电源电压ELVDD供电，电流在传输的过程中会受到走线电阻的影响，造成近IC端和远IC端的电流的大小存在差异，进而导致显示面板在显示时，存在亮度不均的问题，影响显示面板的显示效果。
发明内容
本申请实施例提供一种显示面板的亮度补偿方法及亮度补偿装置及显示装置，以解决显示面板在显示时的亮度不均匀，影响显示面板的显示效果的问题。
根据本申请的一方面，本申请实施例提供了一种显示面板的亮度补偿方法，包括：获取预设灰阶下的显示面板的亮度信息，其中，所述显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据；根据白场亮度数据，确定所述显示面板的白场亮度趋势；根据所述白场亮度趋势，计算所述显示面板的子像素对应的补偿比率参数；将所述子像素的亮度数据与所述子像素对应的所述补偿比率参数进行融合，生成所述子像素对应的亮度补偿数据，其中，所述亮度补偿数据用于对所述显示面板进行电压降补偿和不均匀显示(Mura)补偿。
根据本申请的另一方面，本申请实施例提供了一种显示面板的亮度补偿装置，包括：亮度获取模块，设置为获取预设灰阶下的显示面板的亮度信息，其中，所述显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的的亮度数据；亮度趋势确定模块，设置为根据所述白场亮度数据，确定所述显示面板的白场亮度趋势；补偿比率计算模块，设置为根据白场亮度趋势，计算所述显示面板的子像素对应的补偿比率参数；数据融合模块，设置为将所述子像素的亮度数据与所述子像素对应的所述补偿比率参数进行融合，生成所述子像 素对应的亮度补偿数据，其中，所述亮度补偿数据用于对所述显示面板进行电压降补偿和Mura补偿。
根据本申请的又一方面，本申请实施例提供了一种显示装置，包括：显示面板以及第二方面提供的显示面板的亮度补偿装置。
本申请实施例提供的显示面板的亮度补偿方法通过获取预设灰阶下的显示面板的亮度信息，根据白场亮度数据，确定显示面板的白场亮度趋势。根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数，并将子像素的亮度数据与对应的补偿比率参数进行融合，生成亮度补偿数据。这样设置，使得通过亮度补偿数据对显示面板的显示画面进行更精准的补偿，在进行Mura补偿之前，将亮度补偿数据进行处理，提高了显示面板的压降补偿效果，改善显示面板的显示效果。另一方面，本实施例提供的显示面板的亮度补偿方法将压降补偿和Mura补偿进行融合，得到亮度补偿数据，基于本实施例提供的亮度补偿方法，无需单独的补偿流程和硬件成本，即可实现对显示面板的压降补偿和Mura补偿，较好的提高了显示面板的显示均匀性，改善了显示面板的显示效果。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对本申请实施例描述中所需要使用的附图作简单的介绍。
图1是本申请实施例提供的一种显示面板的亮度补偿方法的流程图；
图2是本申请实施例提供的另一种显示面板的亮度补偿方法的流程图；
图3是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图；
图3A是本申请实施例提供的一种显示面板的区域划分示意图；
图4是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图；
图5是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图；
图6是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图；
图6A为本实施例提供的一种不同灰阶下补偿比率参数计算的曲线图；
图7是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图；
图8是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图；
图9是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图；
图10是本申请实施例提供的一种显示面板的亮度补偿方法的获取补偿增益值的方法流程图；
图11是本申请实施例提供的一种显示面板的亮度补偿装置的结构示意图；
图12是本申请实施例提供的一种显示装置的结构示意图。
具体实施方式
下面结合附图和实施例对本申请进行说明。此处所描述的具体实施例仅仅用于解释本申请，而非对本申请的限定。
图1是本申请实施例提供的一种显示面板的亮度补偿方法的流程图。参见图1，本申请实施例提供的显示面板的亮度补偿方法，包括如下步骤。
S101、获取预设灰阶下的显示面板的亮度信息，其中，显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据。
获取预设灰阶下的显示面板的亮度信息，预设灰阶包括0～255灰阶中的至少一个灰阶。白场亮度数据为显示面板显示白画面时的亮度数据，本申请实施例中，白场亮度数据为R/G/B子像素在W255灰阶下的亮度数据。预设绑点灰阶下的亮度数据为R/G/B子像素在预设绑点灰阶下的亮度数据。预设绑点灰阶可以包括16灰阶、32灰阶、64灰阶、128灰阶以及255灰阶中的至少一个灰阶。
可以通过图像产生器产生W255灰阶图片，将W255灰阶图片写入显示面板，以获取显示面板的白场亮度数据。需要说明的是，显示面板的R/G/B子像素在W255灰阶下的亮度数据可以为通过亮度获取模块获取得到的亮度数据。
可以通过图像产生器产生显示面板在不同绑点灰阶下的图片，将显示面板在不同绑点灰阶下的图片写入显示面板，以获取显示面板的R/G/B子像素在预设绑点灰阶下的亮度数据。显示面板的R/G/B子像素在预设绑点灰阶下的亮度数据可以为通过亮度获取模块获取得到的亮度数据。
S102、根据白场亮度数据，确定显示面板的白场亮度趋势。
根据白场亮度数据，通过对白场亮度数据进行排序，或对白场亮度数据进行比较，确定不同子像素对应的白场亮度数据之间的差异。根据不同子像素对应的白场亮度数据之间的差异，确定显示面板的白场亮度趋势。白场亮度趋势表征显示面板在显示W255灰阶下的图片时的亮度数据的变化趋势。白场亮度趋势为显示面板由于压降导致的显示画面的不均匀时的亮度变化规律，或其他补偿等原因导致的显示画面的不均匀时的亮度变化规律。
S103、根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数。
根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数。补偿比率参数包括多个子像素之间的差异信息。可以设置亮度越高的子像素的补偿比 率参数越小，亮度越低的子像素的补偿比率参数越大。
S104、将显示面板的子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
将显示面板的子像素的亮度数据与对应的补偿比率参数进行融合，生成亮度补偿数据，可以是将子像素的亮度数据与对应的补偿比率参数进行求和或乘积等运算，得到亮度补偿数据。亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿，使得显示面板的画面显示效果更好。
本实施例提供的显示面板的亮度补偿方法通过获取预设灰阶下的显示面板的亮度信息，根据白场亮度数据，确定显示面板的白场亮度趋势。根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数，并将子像素的亮度数据与对应的补偿比率参数进行融合，生成亮度补偿数据。这样设置，使得通过亮度补偿数据对显示面板的显示画面进行更精准的补偿，在进行Mura补偿之前，将亮度补偿数据进行处理，提高了显示面板的压降补偿效果，改善显示面板的显示效果。另一方面，本实施例提供的显示面板的亮度补偿方法将压降补偿和Mura补偿进行融合，得到亮度补偿数据，基于本实施例提供的亮度补偿方法，无需额外的补偿流程和硬件成本，即可实现对显示面板的压降补偿和Mura补偿，较好的提高了显示面板的显示均匀性，改善了显示面板的显示效果。
可选的，图2是本申请实施例提供的另一种显示面板的亮度补偿方法的流程图。在上述实施例的基础上，参见图2，本申请实施例提供的显示面板的亮度补偿方法，包括如下步骤。
S201、通过亮度获取模块获取显示面板显示白画面时的子像素的白场亮度数据。
子像素包括至少三个颜色不同的子像素，例如红色子像素、绿色子像素和蓝色子像素等。亮度获取模块可以较精准的获取显示面板的子像素的亮度数据。采用亮度获取模块获取显示面板显示白画面时的子像素的白场亮度数据，使得子像素的白场亮度数据均可以较好的被采集到。亮度获取模块包括亮度计或其它可获取亮度数据的仪器。
S202、通过亮度获取模块获取预设绑点灰阶下子像素的亮度数据。
将预设绑点灰阶下的图片写入显示面板，显示面板显示画面。亮度获取模块获取预设绑点灰阶下子像素的亮度数据。
S203、根据白场亮度数据，确定显示面板的白场亮度趋势。
S204、根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数。
S205、将子像素的亮度数据与对应的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
可选的，图3是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图。在上述实施例的基础上，参见图3，本申请实施例提供的显示面板的亮度补偿方法，包括如下步骤。
S301、获取预设灰阶下的显示面板的亮度信息；其中，显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据。
S302、将显示面板划分为m*n个显示区域，其中，m*n为大于或等于2的整数。
显示面板可以划分为3*3或者5*3或者14*9等多个显示区域，在此不作任何限定。图3A是本申请实施例提供的一种显示面板的区域划分示意图。参见图3A，图3A示例性的示出m＝n＝3的情况，显示面板300划分为3*3＝9个显示区域，显示区域包括第一显示区域L1、第二显示区域L2、……、第九显示区域L9。
S303、根据m*n个显示区域中的每个显示区域内的多个子像素的白场亮度数据的均值，生成每个显示区域的平均亮度数据。
根据每一个显示区域内多个子像素的白场亮度数据的均值，生成每一显示区域内多个子像素的平均亮度数据。示例性的，对第一显示区域L1内多个子像素的白场亮度数据取均值，得到第一显示区域L1的平均亮度数据。以此类推，分别计算出第二显示区域L2的平均亮度数据，至第九显示区域L9的平均亮度数据。
S304、根据m*n个显示区域的平均亮度数据，确定显示面板的白场亮度趋势。
根据第一显示区域L1的平均亮度数据至第九显示区域L9的平均亮度数据的大小及分布规律，确定显示面板的白场亮度趋势。示例性的，在W255灰阶下，白场亮度趋势可以包括：沿显示面板的列方向的亮度不均，或者沿显示面板的行方向的亮度不均，或者显示面板的中间区域亮而周边区域暗等亮度趋势。
S305、根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数。
S306、将子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
可选的，图4是本申请实施例提供的又一种显示面板的亮度补偿方法的流 程图。在上述实施例的基础上，参见图4，本申请实施例提供的显示面板的亮度补偿方法，包括如下步骤。
S401、获取预设灰阶下的显示面板的亮度信息，其中，显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据。
S402、根据白场亮度数据，确定显示面板的白场亮度趋势。
S403、根据白场亮度趋势，选取目标显示区域，其中，目标显示区域包括至少一个显示区域。
结合图3A，目标显示区域10可以包括位于同一列的显示区域，例如将中间列的显示区域作为目标显示区域10，或者可以将位于边缘列的显示区域作为目标显示区域10，或者，可以设置目标显示区域10包括单个的显示区域，例如位于显示面板300的中间位置的第五显示区域L5，作为目标显示区域10。
图3A示例性的示出目标显示区域10可以包括位于同一列的显示区域的情况，在此不作任何限定。
S404、根据目标显示区域的参考亮度数据与m*n个显示区域中的每个显示区域的平均亮度数据，计算每个显示区域的补偿比率参数，其中，参考亮度数据包括目标显示区域内一个显示区域的平均亮度数据。
当目标显示区域包括单个显示区域时，目标显示区域的参考亮度数据即为目标显示区域的多个子像素的平均亮度数据。
当目标显示区域包括至少两个显示区域时，目标显示区域的参考亮度数据包括目标显示区域内其中一个显示区域的平均亮度数据。例如可以将目标显示区域中的至少两个显示区域所对应的平均亮度数据中的最大值、最小值或中间值作为参考亮度数据。可以根据目标显示区域的参考亮度数据与每一显示区域的平均亮度数据的差值或商值等，得到多个显示区域的补偿比率参数。
S405、根据每个显示区域的补偿比率参数，确定该显示区域中的多个子像素对应的补偿比率参数。
可以设置位于同一个显示区域内的多个子像素的补偿比率参数相同。从而根据每个显示区域的补偿比率参数，确定位于该显示区域内的多个子像素对应的补偿比率参数，从而确定显示面板包括的子像素对应的补偿比率参数。
S406、将子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
可选的，图5是本申请实施例提供的又一种显示面板的亮度补偿方法的流 程图。在上述实施例的基础上，参见图5，本申请实施例提供的显示面板的亮度补偿方法，包括如下步骤。
S501、获取预设灰阶下的显示面板的亮度信息，其中，显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据。
S502、根据白场亮度数据，确定显示面板的白场亮度趋势。
S503、根据白场亮度趋势，选取目标显示区域，目标显示区域包括位于显示面板中心的显示区域；或者，当白场亮度趋势为沿第一方向亮度不均时，目标显示区域包括沿第一方向排列的至少一列显示区域，可选的，目标显示区域包括沿第二方向位于中间的沿第一方向排列的至少一列显示区域，其中，第一方向与第二方向垂直。
目标显示区域包括位于显示面板中心的显示区域。位于显示面板中心的显示区域可以包括单个显示区域，或者，目标显示区域可以包括至少两个显示区域。目标显示区域可以为矩形区域或圆形区域，在此不作任何限定。
继续参见图3A，图3A示例性的示出第一方向Y为列方向，第二方向X为行方向的情况。当白场亮度趋势为沿第一方向Y亮度不均时，由于显示面板300的电流一般会沿信号线传输，由于电流在传输的过程中会受到走线电阻的影响，从而导致在信号线延伸方向的远端与近端电流的大小存在差异，同一条信号线在其延伸方向的近端和远端分别连接的像素电路接收到的电流的均一性较差，进而影响显示面板300的近端和远端的显示效果。通过设置目标显示区域10包括沿第一方向Y排列的至少一列显示区域，例如中间列或左边列或右边列的显示区域，使得目标显示区域10可以较好的表征显示面板300的白场亮度趋势。
可选的，继续参见图3A，目标显示区域10可以包括沿第二方向X即行方向定位的中间的沿第一方向Y排列的至少一列显示区域，即目标显示区域10包括位于显示面板300的中间的一列显示区域。这样设置，使得左边列和右边列均按照目标显示区域10的白场亮度趋势进行补偿。位于显示面板的中间的一列显示区域包括了显示面板300的中心区域。由于显示面板300的中心区域的亮度较准确，使得显示面板300的其他显示区域基于亮度较准确的中间列的显示区域进行补偿，使得显示面板300的补偿效果较好，进一步改善显示面板300的显示效果。
S504、根据目标显示区域的参考亮度数据与每一显示区域的平均亮度数据，计算每一显示区域的补偿比率参数，其中，参考亮度数据包括目标显示区域内一个显示区域的平均亮度数据。
S505、根据每个显示区域的补偿比率参数，确定该显示区域内的子像素对 应的补偿比率参数。
S506、将子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
可选的，图6是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图。在上述实施例的基础上，参见图6，本申请实施例提供的显示面板的亮度补偿方法，包括如下步骤。
S601、获取预设灰阶下的显示面板的亮度信息，其中，显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据。
S602、根据白场亮度数据，确定显示面板的白场亮度趋势。
S603、根据白场亮度趋势，选取目标显示区域，其中，目标显示区域包括至少一个显示区域。
S604、当目标显示区域包括单个显示区域时，根据参考亮度数据和m*n个显示区域中的每个显示区域的平均亮度数据的商值，确定每个显示区域的白场补偿比率参数，其中，参考亮度数据包括目标显示区域的平均亮度数据。
继续参见图3A，目标显示区域包括单个显示区域时，例如，目标显示区域包括第五显示区域L5。参考亮度数据包括目标显示区域，即第五显示区域L5的平均亮度数据。根据参考亮度数据和每一显示区域的平均亮度数据的商值，即根据第五显示区域L5的平均亮度数据与每一显示区域的平均亮度数据的商值，得到每个显示区域的白场补偿比率参数。
S605、根据每个显示区域的白场补偿比率参数，基于预设伽马值，计算每个显示区域在多个绑点灰阶下的补偿比率参数。
根据白场补偿比率参数，基于预设伽马值，计算每个显示区域在多个绑点灰阶下的补偿比率参数。可以设置绑点灰阶包括16灰阶、32灰阶、64灰阶、128灰阶、192灰阶及255灰阶等。
一种可选的实时方式，计算每个显示区域在多个绑点灰阶下的补偿比率参数，通过如下公式计算：
i为绑点灰阶值，Gamma为预设伽马值，即曲线曲率，Ratio为补偿比率参数，其中，白场为在255灰阶下显示面板显示白画面。
示例性的，如计算第一个显示区域L1在16灰阶下的补偿比率参数Ratio： Ratio 255为白场补偿比率参数，Ratio 255_1为第一显示区域L1的白场补偿比率参数，Gamma_1为第一显示区域L1的预设伽马值，Ratio 16_1为第一显示区域L1在16灰阶下的补偿比率参数。以此类推，分别计算第一显示区域L1至第九显示区域L9分别在多个绑点灰阶，例如16/32/64/128/192/255灰阶下的补偿比率参数Ratio。
一种可选的实施方式，预设伽马值可以设置为2.2，即Gamma_1＝Gamma_2＝……＝Gamma_9＝2.2，以预设伽马值Gamma为2.2进行计算。
另一种可选的实施方式，预设伽马值可以通过如下方法计算：根据白场亮度数据和第一预设绑点灰阶下子像素的亮度数据，计算目标显示区域内的每个显示区域的预设伽马值，其中，显示面板的亮度信息还包括第一预设绑点灰阶下子像素的亮度数据。
示例性的，第一预设绑点灰阶下子像素的亮度数据可以为128灰阶下的亮度数据。白场亮度数据为W255灰阶下子像素的亮度数据。
图6A为本实施例提供的一种不同灰阶下补偿比率参数计算的曲线图。图6A的横坐标表示灰阶，纵坐标表示补偿比率参数，曲线的曲率表示伽马值Gamma。结合图3A和图6A，根据128灰阶和W255灰阶下的补偿比率参数，确定灰阶补偿曲线的曲率，即目标显示区域内的多个显示区域的伽马值。可以设置第一显示区域的伽马值Gamma_1、第二显示区域的伽马值Gamma_2，……、第九显示区域的伽马值Gamma_9。这样设置，可以使得多个显示区域的伽马值较准确，多个显示区域可以分别采用本显示区域的伽马值进行补偿比率参数的计算，使得对不同灰阶下补偿比率参数的计算更准确，从而进一步改善显示面板的补偿效果。
S606、根据每个显示区域的补偿比率参数，确定该显示区域内的子像素对应的补偿比率参数。
S607、将子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
可选的，图7是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图。在上述实施例的基础上，参见图7，本申请实施例提供的显示面板的亮度补偿方法，包括如下步骤。
S701、获取预设灰阶下的显示面板的亮度信息，其中，显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据。
S702、根据白场亮度数据，确定显示面板的白场亮度趋势。
S703、根据白场亮度趋势，选取目标显示区域，其中，目标显示区域包括至少一个显示区域。
S704、当目标显示区域包括至少两个显示区域时，根据目标显示区域内的至少两个显示区域的平均亮度数据的排序结果，确定参考亮度数据，其中，参考亮度数据包括目标显示区域内的至少两个显示区域的平均亮度数据中的最大平均亮度数据或最小平均亮度数据。
参考亮度数据可以包括同一列目标显示区域中多个显示区域的平均亮度数据的最大值、最小值或中间值。示例性的，参见图3A，目标显示区域包括中间列显示区域，即包括第四显示区域L4、第五显示区域L5、第六显示区域L6。通过计算第四显示区域L4的平均亮度数据、第五显示区域L5的平均亮度数据以及第六显示区域L6的平均亮度数据并比较获得最小值Lmin，将该最小值Lmin作为目标显示区域的参考亮度数据。
或者，通过计算第四显示区域L4的平均亮度数据、第五显示区域L5的平均亮度数据以及第六显示区域L6的平均亮度数据并比较获得最大值Lmax，将该最大值Lmax作为目标显示区域的参考亮度数据。
S705、根据参考亮度数据和目标显示区域内的至少两个显示区域中的每个显示区域的平均亮度数据的商值，确定目标显示区域内的至少两个显示区域中的每个显示区域的白场补偿比率参数。
可以将目标显示区域的参考亮度数据与每一显示区域的平均亮度数据作商，计算目标显示区域内的每个显示区域的白场补偿比率参数。
示例性的，继续参见图3A，目标显示区域10包括第四显示区域L4、第五显示区域L5、第六显示区域L6。第四显示区域L4的白场补偿比率参数Ratio255-_4＝第四显示区域L4的平均亮度数据/目标显示区域10中多个显示区域的平均亮度数据的最小值Lmin。第五显示区域L5的白场补偿比率参数Ratio255_5＝第五显示区域L5的平均亮度数据/目标显示区域10中多个显示区域的平均亮度数据的最小值Lmin。第六显示区域L6的白场补偿比率参数Ratio255_6＝第六显示区域L6的平均亮度数据/目标显示区域10中多个显示区域的平均亮度数据的最小值Lmin。
S706、根据目标显示区域内的至少两个显示区域中的每个显示区域的白场补偿比率参数，基于预设伽马值，计算目标显示区域内的至少两个显示区域中的每个显示区域在多个绑点灰阶下的补偿比率参数。
示例性的，根据目标显示区域的第四显示区域L4的白场补偿比率参数Ratio255_4，基于预设伽马值，计算目标显示区域内第四显示区域L4在多个绑 点灰阶下的补偿比率参数。根据目标显示区域的第五显示区域L5的白场补偿比率参数Ratio255_5，基于预设伽马值，计算目标显示区域内第五显示区域L5在多个绑点灰阶下的补偿比率参数。根据目标显示区域的第六显示区域L6的白场补偿比率参数Ratio255_6，基于预设伽马值，计算目标显示区域内第六显示区域L6在多个绑点灰阶下的补偿比率参数。
一种可选的实施方式，计算目标显示区域内的每个显示区域在多个绑点灰阶下的补偿比率参数Ratio，通过如下公式计算：
i为绑点灰阶值，Gamma为预设伽马值，即曲线曲率，预设伽马值可以分别设置为第一显示区域的伽马值Gamma_1、第二显示区域的伽马值Gamma_2、……、或第九显示区域的伽马值Gamma_9。Ratio为补偿比率参数，其中，白场为在255灰阶下显示面板显示白画面。可选的，预设伽马值可以通过设置为2.2或通过上述任意实施例提供的计算方法得到，在此不作限定。
S707、将目标显示区域内的至少两个显示区域在多个绑点灰阶下的补偿比率参数，扩展为显示面板的m*n个显示区域在多个绑点灰阶下的补偿比率参数。
由于压降导致的显示不均为沿第一方向，例如列方向的亮度不均，不同列之间的亮度不均的规律相近。故可以将目标显示区域所在的列的多个显示区域在多个绑点灰阶下的补偿比例参数沿第二方向，例如宽度方向，平行扩展为显示面板的多个显示区域在多个绑点灰阶下的补偿比率参数。这样设置，可以节省补偿过程中需要处理的数据量，提高亮度补偿数据的计算速度。
示例性的，继续参见图3A，可以将目标显示区域10的第四显示区域L4、第五显示区域L5、第六显示区域L6在多个绑点灰阶下的补偿比率参数，沿第二方向X平行扩展为位于目标显示区域10的左侧一列的第一显示区域L1、第二显示区域L2以及第三显示区域L3在多个绑点灰阶下的补偿比率参数。而且，可以沿第二方向X平行扩展为位于目标显示区域10的右侧一列的第七显示区域L7、第八显示区域L8以及第九显示区域L9在多个绑点灰阶下的补偿比率参数。
S708、根据每个显示区域的补偿比率参数，确定该显示区域内的子像素对应的补偿比率参数。
可以设置同一个显示区域内多个子像素的补偿比率参数相同，可以节省补偿过程中计算的数据量，进一步提高计算速度。
一种可选的实施方式，根据每个显示区域的补偿比率参数，确定每个显示区域内的子像素对应的补偿比率参数，可以包括：通过双线性插值方法，将每 个显示区域在多个绑点灰阶下的补偿比率参数扩展为每个显示区域内的子像素对应的补偿比率参数。这样设置，可以较准确的得到显示面板的子像素对应的补偿比率参数，既能保证对显示面板的亮度进行较好的补偿，又能保证亮度补偿数据的计算量较小，进一步改善显示面板亮度补偿的效果。
S709、将子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
一种可选的实施方式，将子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成亮度补偿数据，包括：根据子像素的亮度数据与子像素对应的补偿比率参数的乘积，生成亮度补偿数据。
这样设置，可以使得子像素的亮度数据分别乘以子像素对应的补偿比率参数，生成的亮度补偿数据已经平衡了压降导致的显示不均问题，改善了亮度补偿数据的补偿效果。
可选的，图8是本申请实施例提供的又一种显示面板的亮度补偿方法的流程图。在上述实施例的基础上，参见图8，本申请实施例提供的显示面板的亮度补偿方法，包括如下步骤。
S801、获取预设灰阶下的显示面板的亮度信息，其中，显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据。
S802、根据白场亮度数据，确定显示面板的白场亮度趋势。
S803、根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数。
S804、将显示面板的子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
S805、根据亮度补偿数据，进行Mura补偿。
根据上述实施例提供的亮度补偿数据，采用Demura算法流程进行计算，得到补偿值，根据补偿值，对显示面板进行Mura补偿。这样设置，使得本实施例提供的显示面板的亮度补偿方法通过将融入压降补偿的亮度补偿数据作为Mura补偿的初始数据，基于本实施例提供的亮度补偿数据，通过显示面板的相关技术中的demura方法，即可实现对显示面板的压降补偿和Mura补偿，无需单独的补偿流程和硬件成本，较好的提高了显示面板的显示均匀性，进一步改善显示面板的显示效果。
可选的，图9是本申请实施例提供的又一种显示面板的亮度补偿方法的流 程图。在上述实施例的基础上，参见图9，本申请实施例提供的显示面板的亮度补偿方法，包括如下步骤。
S901、获取预设灰阶下的显示面板的亮度信息，其中，显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据。
S902、根据白场亮度数据，确定显示面板的白场亮度趋势。
S903、根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数。
S904、获取补偿增益值，其中，补偿增益值包括预设固定增益值或反馈增益值。
补偿增益值是用于根据补偿经验确定的预设固定增益值，或者根据补偿后的显示面板的亮度值计算得到的反馈增益值，反馈增益值为对显示面板进行一次亮度补偿后反馈的补偿增益值。预设固定增益值例如，可以定义为：1、1.01、1.03等。每个显示区域的预设固定增益值可以设置为相同。
示例性的，继续参见图3A，可以将目标显示区域的第四显示区域L4的预设固定增益值设置为1、第五显示区域L5的预设固定增益值设置为1.01、第六显示区域L6的预设固定增益值设置为1.03。
S905、根据补偿增益值与子像素对应的补偿比率参数的乘积，确定修正后的补偿比率参数。
这样设置，使得修正后的补偿比率参数，既包括了补偿增益值，又包括了补偿比率参数。这样设置，使得修正后的补偿比率参数更好的对显示面板进行补偿，提高了显示面板的压降补偿效果。
一种可选的实施方式，根据补偿增益值与子像素对应的补偿比率参数的乘积，确定修正后的补偿比率参数，可以包括：根据m*n个显示区域在多个绑点灰阶下的补偿增益值与m*n个显示区域在多个绑点灰阶下对应的补偿比率参数的乘积，确定子像素对应的修正后的补偿比率参数。
可以根据目标显示区域内的补偿增益值，沿第二方向扩展为显示面板的多个显示区域在多个绑点灰阶下的补偿增益值。将多个显示区域在多个绑点灰阶下的补偿增益值乘以多个显示区域在多个绑点灰阶下对应的补偿比率参数，得到子像素对应的修正后的补偿比率参数。
S906、将子像素的亮度数据与子像素对应的修正后的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
一种可选的实施方式，将子像素的亮度数据与对应的修正后的补偿比率参 数进行融合，生成亮度补偿数据，可以包括：根据子像素对应的修正后的补偿比率参数与修正后的补偿比率参数对应的子像素的亮度数据的乘积，生成修正后的亮度补偿数据。
这样设置，使得显示面板进行亮度补偿时，采用修正后的补偿比率参数乘以对应的子像素的亮度数据。显示面板以修正后的亮度补偿数据进行Mura补偿，进一步提高压降补偿效果，进而改善显示面板的显示效果。
可选的，图10是本申请实施例提供的一种显示面板的亮度补偿方法的获取补偿增益值的方法流程图。在上述实施例的基础上，参见图10，当补偿增益值包括反馈增益值时，本实施例提供的获取补偿增益值的步骤，包括如下步骤。
S1001、获取补偿后的目标显示区域的白场亮度数据；目标显示区域包括至少两个显示区域。
继续参见图3A，示例性的，目标显示区域包括第四显示区域L4、第五显示区域L5、第六显示区域L6。获取补偿后的目标显示区域的第四显示区域L4的白场亮度数据、第五显示区域L5的白场亮度数据以及第六显示区域L6的白场亮度数据。
S1002、根据目标显示区域内的每个显示区域的多个子像素的白场亮度数据的均值，得到目标显示区域内的每个显示区域的平均亮度数据。
根据目标显示区域的位于第四显示区域L4的多个子像素的白场亮度数据的均值，得到第四显示区域L4的平均亮度数据。根据目标显示区域的位于第五显示区域L5的多个子像素的白场亮度数据的均值，得到第五显示区域L5的平均亮度数据。根据目标显示区域的位于第六显示区域L6的多个子像素的白场亮度数据的均值，得到第六显示区域L6的平均亮度数据。
S1003、根据目标显示区域内的每个显示区域的平均亮度数据与目标显示区域内的至少两个显示区域的平均亮度数据中的最小平均亮度数据的商值，得到目标显示区域内的每个显示区域的白场补偿增益值。
计算第四显示区域L4的平均亮度数据、第五显示区域L5的平均亮度数据和第六显示区域L6的平均亮度数据的最小值，得到最小平均亮度数据LLmin。
示例性的，目标显示区域的第四显示区域L4的平均亮度数据LL4与最小平均亮度数据LLmin作商，得到第四显示区域L4的白场补偿增益值Gain 4，即Gain 4＝LL4/LLmin。目标显示区域的第五显示区域L5的平均亮度数据LL5与最小平均亮度数据LLmin作商，得到第五显示区域L5的白场补偿增益值Gain 5，即Gain 5＝LL5/LLmin。目标显示区域的第六显示区域L6的平均亮度数据LL6与最小平均亮度数据LLmin作商，得到第六显示区域L6的白场补偿增益值Gain  6，即Gain 6＝LL6/LLmin。
S1004、根据目标显示区域内的每个显示区域的白场补偿增益值，计算显示面板的m*n个显示区域在多个绑点灰阶下的补偿增益值。
根据目标显示区域内的每个显示区域的白场补偿增益值，计算目标显示区域内的多个显示区域在多个绑点灰阶下的补偿增益值。可选的，可以设置目标显示区域内的多个显示区域在多个绑点灰阶下的补偿增益值均相等。将目标显示区域内的至少两个显示区域在多个绑点灰阶下的补偿增益值，沿第二方向平行扩展为显示面板的多个显示区域在多个绑点灰阶下的补偿增益值。通过双线性插值方法，将每个显示区域在多个绑点灰阶下的补偿增益值扩展为每个显示区域内的子像素对应的补偿增益值。这样设置，可以较准确的得到显示面板的子像素对应的补偿增益值，既能保证对显示面板的亮度进行较好的反馈补偿，又能保证亮度补偿数据的计算量较小，进一步改善显示面板亮度补偿的效果。
图11是本申请实施例提供的一种显示面板的亮度补偿装置的结构示意图。在上述实施例的基础上，参见图11，本申请实施例提供了的显示面板的亮度补偿装置100，包括：亮度获取模块111，设置为获取预设灰阶下的显示面板的亮度信息，其中，显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据；亮度趋势确定模块112，设置为根据白场亮度数据，确定显示面板的白场亮度趋势；补偿比率计算模块113，设置为根据白场亮度趋势，计算显示面板的子像素对应的补偿比率参数；数据融合模块114，设置为将子像素的亮度数据与子像素对应的补偿比率参数进行融合，生成亮度补偿数据，其中，亮度补偿数据用于对显示面板进行电压降补偿和Mura补偿。
本实施例提供的显示面板的亮度补偿装置，通过亮度获取模块获取预设灰阶下的显示面板的亮度信息，并通过亮度趋势确定模块根据白场亮度数据，确定显示面板的白场亮度趋势。补偿比率计算模块根据白场亮度趋势，计算子像素对应的补偿比率参数，并通过数据融合模块将子像素的亮度数据与对应的补偿比率参数进行融合，生成亮度补偿数据。这样设置，使得显示面板的亮度补偿装置通过亮度补偿数据对显示面板的显示画面进行更精准的补偿，在进行Mura补偿之前，将补偿数据进行处理，提高了显示面板的压降补偿效果，改善显示面板的显示效果。
此外，通过将压降补偿融入Mura补偿，基于本实施例提供的亮度补偿数据，通过显示面板在相关技术中的Mura补偿方法，即可实现对显示面板的压降补偿和Mura补偿。本实施例提供的显示面板的亮度补偿装置可以同时实现对显示面板进行压降补偿和Mura补偿，无需单独的补偿流程和硬件成本，较好的提高了显示面板的显示均匀性，改善了显示面板的显示效果。
图12是本申请实施例提供的一种显示装置的结构示意图。在上述实施例的基础上，参见图12，本申请实施例提供的显示装置200包括显示面板300以及上述任意实施例提出的显示面板的亮度补偿装置100，在此不再赘述。本实施例提供的显示装置可以包括手机、平板电脑、可穿戴设备等终端设备。

Claims (20)

  1. 一种显示面板的亮度补偿方法，包括：
    获取预设灰阶下的显示面板的亮度信息，其中，所述显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据；
    根据所述白场亮度数据，确定所述显示面板的白场亮度趋势；
    根据所述白场亮度趋势，计算所述显示面板的子像素对应的补偿比率参数；
    将所述子像素的亮度数据与所述子像素对应的所述补偿比率参数进行融合，生成所述子像素对应的亮度补偿数据，其中，所述亮度补偿数据用于对所述显示面板进行电压降补偿和Mura补偿。
  2. 根据权利要求1所述的方法，其中，所述获取预设灰阶下的显示面板的亮度信息，包括：
    通过亮度获取模块获取所述显示面板显示白画面时的所述子像素的白场亮度数据；
    通过所述亮度获取模块获取所述预设绑点灰阶下所述子像素的亮度数据。
  3. 根据权利要求2所述的方法，其中，所述根据所述白场亮度数据，确定所述显示面板的白场亮度趋势，包括：
    将所述显示面板划分为m*n个显示区域，其中，m*n为大于或等于2的整数；
    根据所述m*n个显示区域中的每个显示区域内的多个子像素的白场亮度数据的均值，生成所述每个显示区域的平均亮度数据；
    根据所述m*n个显示区域的平均亮度数据，确定所述显示面板的白场亮度趋势。
  4. 根据权利要求3所述的方法，其中，所述根据所述白场亮度趋势，计算所述显示面板的子像素对应的补偿比率参数，包括：
    根据所述白场亮度趋势，选取目标显示区域，其中，所述目标显示区域包括所述m*n个显示区域中的至少一个显示区域；
    根据所述目标显示区域的参考亮度数据与所述m*n个显示区域中的每个显示区域的平均亮度数据，计算所述每个显示区域的补偿比率参数，其中，所述参考亮度数据包括所述目标显示区域内一个显示区域的平均亮度数据；
    根据所述每个显示区域的补偿比率参数，确定所述每个显示区域内的子像素对应的补偿比率参数。
  5. 根据权利要求4所述的方法，其中，所述根据所述白场亮度趋势，选取 目标显示区域，包括：
    选取位于所述显示面板中心的显示区域作为所述目标显示区域；或者，
    在所述白场亮度趋势为沿第一方向亮度不均的情况下，选取沿所述第一方向排列的至少一列显示区域作为所述目标显示区域。
  6. 根据权利要求4所述的方法，其中，所述根据所述白场亮度趋势，选取目标显示区域，包括：
    在所述白场亮度趋势为沿第一方向亮度不均的情况下，确定第二方向的中间位置，其中，所述第二方向垂直于所述第一方向；以及，在所述第二方向的中间位置处选取沿所述第一方向排列的至少一列显示区域作为所述目标显示区域。
  7. 根据权利要求4所述的方法，其中，所述根据所述目标显示区域的参考亮度数据与所述m*n个显示区域中的每个显示区域的平均亮度数据，计算所述每个显示区域的补偿比率参数，包括：
    在所述目标显示区域包括单个显示区域的情况下，根据所述参考亮度数据和所述m*n个显示区域中的每个显示区域的平均亮度数据的商值，确定所述每个显示区域的白场补偿比率参数，其中，所述参考亮度数据包括所述目标显示区域的平均亮度数据；
    根据所述每个显示区域的白场补偿比率参数，基于预设伽马值，计算所述每个显示区域在多个绑点灰阶下的补偿比率参数。
  8. 根据权利要求4所述的方法，其中，所述根据所述目标显示区域的参考亮度数据与所述m*n个显示区域中的每个显示区域的平均亮度数据，计算所述每个显示区域的补偿比率参数，包括：
    在所述目标显示区域包括至少两个显示区域的情况下，根据所述目标显示区域内的所述至少两个显示区域的平均亮度数据的排序结果，确定参考亮度数据，其中，所述参考亮度数据包括所述目标显示区域内的所述至少两个显示区域的平均亮度数据中的最大平均亮度数据或最小平均亮度数据；
    根据所述参考亮度数据和所述目标显示区域内的所述至少两个显示区域中的每个显示区域的平均亮度数据的商值，确定所述目标显示区域内的所述至少两个显示区域中的每个显示区域的白场补偿比率参数；
    根据所述目标显示区域内的所述至少两个显示区域中的每个显示区域的白场补偿比率参数，基于预设伽马值，计算所述目标显示区域内的所述至少两个显示区域中的每个显示区域在多个绑点灰阶下的补偿比率参数；
    将所述目标显示区域内的所述至少两个显示区域在多个绑点灰阶下的补偿比率参数，扩展为所述显示面板的m*n个显示区域在多个绑点灰阶下的补偿比率参数。
  9. 根据权利要求7所述的方法，其中，所述计算所述每个显示区域在多个绑点灰阶下的补偿比率参数，通过如下公式计算：
    其中，i为绑点灰阶值，Gamma为预设伽马值，即曲线曲率，Ratio为补偿比率参数，其中，白场为在255灰阶下显示面板显示白画面。
  10. 根据权利要求9所述的方法，其中，所述预设伽马值通过如下方法计算：
    根据所述白场亮度数据和第一预设绑点灰阶下子像素的亮度数据，计算所述目标显示区域内的所述单个显示区域的预设伽马值，其中，所述显示面板的亮度信息还包括所述第一预设绑点灰阶下子像素的亮度数据。
  11. 根据权利要求4所述的方法，其中，所述根据所述每个显示区域的补偿比率参数，确定所述每个显示区域的子像素对应的补偿比率参数，包括：
    通过双线性插值方法，将所述每个显示区域在多个绑点灰阶下的补偿比率参数，扩展为所述每个显示区域内的子像素对应的补偿比率参数。
  12. 根据权利要求1所述的方法，其中，所述将所述子像素的亮度数据与所述子像素对应的所述补偿比率参数进行融合，生成所述子像素对应的亮度补偿数据，包括：
    根据所述子像素的亮度数据与所述子像素对应的所述补偿比率参数的乘积，生成所述子像素对应的亮度补偿数据。
  13. 根据权利要求1所述的方法，在所述将所述子像素的亮度数据与所述子像素对应的所述补偿比率参数进行融合，生成所述子像素对应的亮度补偿数据之后，还包括：
    根据所述亮度补偿数据，进行所述Mura补偿。
  14. 根据权利要求13所述的方法，在所述将所述子像素的亮度数据与所述子像素对应的所述补偿比率参数进行融合，生成所述子像素对应的亮度补偿数据之前，还包括：
    获取补偿增益值，其中，所述补偿增益值包括预设固定增益值或反馈增益值；
    根据所述补偿增益值与所述子像素对应的所述补偿比率参数的乘积，确定 修正后的补偿比率参数。
  15. 根据权利要求14所述的方法，其中，所述反馈增益值为对所述显示面板进行一次亮度补偿后反馈的补偿增益值。
  16. 根据权利要求14或15所述的方法，其中，所述补偿增益值包括反馈增益值；
    所述获取补偿增益值，包括：
    获取亮度补偿后的目标显示区域的白场亮度数据，所述目标显示区域包括至少两个显示区域；
    根据所述目标显示区域内的每个显示区域包括的多个子像素的白场亮度数据的均值，得到所述目标显示区域内的每个显示区域的平均亮度数据；
    根据所述目标显示区域内的每个显示区域的平均亮度数据与所述目标显示区域内的所述至少两个显示区域的平均亮度数据中的最小平均亮度数据的商值，得到所述目标显示区域内的每个显示区域的白场补偿增益值；
    根据所述目标显示区域内的每个显示区域的白场补偿增益值，计算所述显示面板的m*n个显示区域在多个绑点灰阶下的补偿增益值。
  17. 根据权利要求16所述的方法，其中，所述根据所述补偿增益值与所述子像素对应的所述补偿比率参数的乘积，确定修正后的补偿比率参数，包括：
    根据所述m*n个显示区域在多个绑点灰阶下的补偿增益值与所述m*n个显示区域在多个绑点灰阶下对应的补偿比率参数的乘积，确定所述子像素对应的修正后的补偿比率参数。
  18. 根据权利要求17所述的方法，其中，所述将所述子像素的亮度数据与所述子像素对应的所述补偿比率参数进行融合，生成所述子像素对应的亮度补偿数据，包括：
    根据所述子像素对应的修正后的补偿比率参数与所述修正后的补偿比率参数对应的子像素的亮度数据的乘积，生成修正后的亮度补偿数据。
  19. 一种显示面板的亮度补偿装置，包括：
    亮度获取模块，设置为获取预设灰阶下的显示面板的亮度信息，其中，所述显示面板的亮度信息包括白场亮度数据和预设绑点灰阶下子像素的亮度数据；
    亮度趋势确定模块，设置为根据所述白场亮度数据，确定所述显示面板的白场亮度趋势；
    补偿比率计算模块，设置为根据所述白场亮度趋势，计算所述显示面板的 子像素对应的补偿比率参数；
    数据融合模块，设置为将所述子像素的亮度数据与所述子像素对应的所述补偿比率参数进行融合，生成所述子像素对应的亮度补偿数据，以对所述显示面板进行亮度补偿。
  20. 一种显示装置，包括：显示面板以及权利要求19所述的显示面板的亮度补偿装置。
PCT/CN2023/108831 2023-02-28 2023-07-24 显示面板的亮度补偿方法及亮度补偿装置及显示装置 Ceased WO2024178902A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120452371A (zh) * 2025-06-26 2025-08-08 合肥维信诺科技有限公司 显示面板的补偿方法和补偿数据确定方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116189633A (zh) * 2023-02-28 2023-05-30 合肥维信诺科技有限公司 一种显示面板的亮度补偿方法及亮度补偿装置及显示装置
CN117524143B (zh) * 2023-07-11 2026-01-02 Tcl华星光电技术有限公司 一种显示面板的补偿方法、系统、显示装置和存储介质
CN116913195B (zh) * 2023-08-02 2026-02-06 合肥维信诺科技有限公司 一种显示面板的亮度补偿方法、装置和显示设备

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140184671A1 (en) * 2012-12-28 2014-07-03 Gil-Jae Lee Display device, and optical compensation system and optical compensation method thereof
CN104299563A (zh) * 2014-09-05 2015-01-21 青岛海信电器股份有限公司 一种亮度补偿方法及自发光显示装置
CN105741764A (zh) * 2016-03-31 2016-07-06 深圳市华星光电技术有限公司 消除OLED显示面板Mura的方法
CN106782307A (zh) * 2017-01-25 2017-05-31 上海天马有机发光显示技术有限公司 一种oled显示面板的灰阶补偿方法以及灰阶补偿系统
US20170186350A1 (en) * 2015-12-29 2017-06-29 Samsung Display Co., Ltd. Luminance distoration compensating apparatus, method of compensating luminance distoration using the same and display panel inspecting system having the same
CN107610649A (zh) * 2017-10-26 2018-01-19 上海天马有机发光显示技术有限公司 一种显示面板的光学补偿方法及装置
CN112950657A (zh) * 2021-03-29 2021-06-11 合肥京东方显示技术有限公司 伽马值校正方法及其装置、电子装置和可读存储介质
CN114898706A (zh) * 2022-05-18 2022-08-12 昆山国显光电有限公司 显示屏的亮度补偿方法和装置，以及计算机设备
CN115083328A (zh) * 2022-06-28 2022-09-20 昆山国显光电有限公司 显示补偿方法、装置、设备、介质及显示装置
CN116189633A (zh) * 2023-02-28 2023-05-30 合肥维信诺科技有限公司 一种显示面板的亮度补偿方法及亮度补偿装置及显示装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020215179A1 (zh) * 2019-04-22 2020-10-29 京东方科技集团股份有限公司 亮度补偿参数检测方法、亮度补偿方法、亮度补偿参数检测装置、亮度补偿装置、显示装置及存储介质
CN110706648B (zh) * 2019-09-23 2021-04-02 昆山国显光电有限公司 图像显示调整方法、系统及显示面板
CN111710277A (zh) * 2020-06-28 2020-09-25 合肥维信诺科技有限公司 显示面板的补偿方法及装置
CN112767891B (zh) * 2021-01-20 2022-07-12 Tcl华星光电技术有限公司 mura补偿方法、显示面板及显示装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140184671A1 (en) * 2012-12-28 2014-07-03 Gil-Jae Lee Display device, and optical compensation system and optical compensation method thereof
CN104299563A (zh) * 2014-09-05 2015-01-21 青岛海信电器股份有限公司 一种亮度补偿方法及自发光显示装置
US20170186350A1 (en) * 2015-12-29 2017-06-29 Samsung Display Co., Ltd. Luminance distoration compensating apparatus, method of compensating luminance distoration using the same and display panel inspecting system having the same
CN105741764A (zh) * 2016-03-31 2016-07-06 深圳市华星光电技术有限公司 消除OLED显示面板Mura的方法
CN106782307A (zh) * 2017-01-25 2017-05-31 上海天马有机发光显示技术有限公司 一种oled显示面板的灰阶补偿方法以及灰阶补偿系统
CN107610649A (zh) * 2017-10-26 2018-01-19 上海天马有机发光显示技术有限公司 一种显示面板的光学补偿方法及装置
CN112950657A (zh) * 2021-03-29 2021-06-11 合肥京东方显示技术有限公司 伽马值校正方法及其装置、电子装置和可读存储介质
CN114898706A (zh) * 2022-05-18 2022-08-12 昆山国显光电有限公司 显示屏的亮度补偿方法和装置，以及计算机设备
CN115083328A (zh) * 2022-06-28 2022-09-20 昆山国显光电有限公司 显示补偿方法、装置、设备、介质及显示装置
CN116189633A (zh) * 2023-02-28 2023-05-30 合肥维信诺科技有限公司 一种显示面板的亮度补偿方法及亮度补偿装置及显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120452371A (zh) * 2025-06-26 2025-08-08 合肥维信诺科技有限公司 显示面板的补偿方法和补偿数据确定方法

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