WO2019201220A1 - 色度补偿方法及装置、设备、显示装置、存储介质 - Google Patents

色度补偿方法及装置、设备、显示装置、存储介质 Download PDF

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Publication number
WO2019201220A1
WO2019201220A1 PCT/CN2019/082770 CN2019082770W WO2019201220A1 WO 2019201220 A1 WO2019201220 A1 WO 2019201220A1 CN 2019082770 W CN2019082770 W CN 2019082770W WO 2019201220 A1 WO2019201220 A1 WO 2019201220A1
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Prior art keywords
color
pixel
target
sub
brightness
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PCT/CN2019/082770
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English (en)
French (fr)
Inventor
杨飞
朱明毅
王俪蓉
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京东方科技集团股份有限公司
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Priority to US16/620,134 priority Critical patent/US11176867B2/en
Priority to EP19789377.9A priority patent/EP3783594B1/en
Priority to KR1020197037689A priority patent/KR102274433B1/ko
Priority to JP2019568143A priority patent/JP7311434B2/ja
Publication of WO2019201220A1 publication Critical patent/WO2019201220A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/026—Control of mixing and/or overlay of colours in general
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation

Definitions

  • the present disclosure relates to the field of display, and in particular, to a chromaticity compensation method and apparatus, device, display device, and storage medium.
  • OLED Organic Light-Emitting Diode
  • RGBW OLED display device consisting of R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels, and white (W) sub-pixels has emerged.
  • the color of the W sub-pixel is determined based on the color of the R sub-pixel, the color of the G sub-pixel, and the color of the B sub-pixel.
  • Embodiments of the present disclosure provide a chromaticity compensation method and apparatus, device, display device, and storage medium.
  • the technical solution is as follows:
  • a chromaticity compensation method comprising:
  • the target pixel unit Acquiring an initial color of the display sub-pixel in the target pixel unit at the target brightness, and a target color of the target pixel unit at the target brightness, the target pixel unit comprising: at least two display sub-pixels having different illuminating colors;
  • the complementary color gain of any of the display sub-pixels at the target brightness is used to represent that when the color of the target pixel unit is compensated from the initial color to the target color under the target brightness, A degree to which the sub-pixels are compensated.
  • the acquiring a complementary color gain of each display sub-pixel, respectively, according to the target color and an initial color of each display sub-pixel including:
  • the method further includes:
  • the acquiring the complementary color gain of each display sub-pixel separately includes:
  • the first complementary color coefficient is used to characterize a degree of chromaticity compensation that needs to be performed when acquiring the first initial color
  • the second complementary color coefficient is used to characterize a degree of chromaticity compensation that needs to be performed when acquiring the target color
  • a complementary color gain of each of the display sub-pixels at the first brightness is determined based on the first complementary color coefficient and the second complementary color coefficient.
  • the at least two display sub-pixels comprise a first sub-pixel, a second sub-pixel and a third sub-pixel, and when the color of the sub-pixel is represented by color coordinates, the first sub-pixel corresponds to the j-th substitution ratio R Wj1, j-substitution ratio corresponding to the second sub-pixel R Wj2, j-substitution ratio corresponding to the third sub-pixel R Wj3, satisfy:
  • the j is 1 or 2
  • the color coordinates of the initial color of the first sub-pixel are (B X , B Y )
  • the color coordinates of the initial color of the second sub-pixel are (G X , G Y
  • the color coordinates of the initial color of the third sub-pixel are (R X , R Y )
  • the color coordinates of the first initial color are (W 1X , W 1Y )
  • the color coordinates of the target color are ( W 2X , W 2Y )
  • the R Z 1-R X -R Y
  • G Z 1-G X -G Y
  • B Z 1-B X -B Y
  • W 1Z 1-W 1X -W 1Y
  • W 2Z 1-W 2X -W 2Y .
  • the determining, according to the first substitution ratio and the second substitution ratio, respectively determining a first complementary color coefficient of the first initial color at the first brightness, and a second complementary color coefficient of the target color at the first brightness comprising:
  • the dominant color component being the largest percentage of color components that cause the first initial color to deviate from the target color
  • a second substitution ratio of the sub-pixel whose luminescent color is the dominant color component is determined as the second complementary color coefficient.
  • the at least two display sub-pixels comprise a first sub-pixel, a second sub-pixel and a third sub-pixel, and based on the relative position, determining to cause the first initial color to deviate from the target color
  • the dominant color components including:
  • the first complementary color coefficient R W1 , the second complementary color coefficient R W2 , and the complementary color gain G i of the ith sub-pixel at the first brightness satisfy:
  • the R W2i is a second substitution ratio corresponding to the ith sub-pixel
  • the R W1i is a first substitution ratio corresponding to the ith sub-pixel
  • the n is a driving output signal provided to the sub-pixel The number of bits is used to drive the sub-pixel to emit light.
  • the determining, according to the target color and an initial color of any display sub-pixel, a correspondence between a brightness of the display sub-pixel and a complementary color gain, and determining that the any display sub-pixel is at the target Complementary gain at brightness including:
  • the first candidate brightness and the second candidate brightness are determined among the plurality of brightnesses described in the correspondence, and the first candidate brightness is the a brightness of the plurality of brightnesses that is smaller than the target brightness and having a smallest difference from the brightness of the target brightness, the second candidate brightness being greater than the target brightness of the plurality of brightnesses, and the target brightness The difference in brightness is the smallest brightness;
  • the chrominance of the target pixel unit is compensated based on a complementary color gain of the display sub-pixel at the target brightness, including:
  • the drive output signal is provided to any of the display sub-pixels for compensating for chrominance of the target pixel unit.
  • a chromaticity compensation device comprising:
  • a first acquiring module configured to acquire an initial color of the display sub-pixel in the target pixel unit at the target brightness, and a target color of the target pixel unit under the target brightness, where the target pixel unit includes: different illuminating colors At least two display sub-pixels;
  • a second acquiring module configured to acquire a complementary color gain of each display sub-pixel under the target brightness based on the target color and an initial color of each display sub-pixel
  • a compensation module configured to compensate a chrominance of the target pixel unit based on a complementary color gain of the display sub-pixel at the target brightness
  • the complementary color gain of any of the display sub-pixels at the target brightness is used to represent that when the color of the target pixel unit is compensated from the initial color to the target color under the target brightness, A degree to which the sub-pixels are compensated.
  • the second acquiring module is configured to query, according to the target color and an initial color of any display sub-pixel, a correspondence between a brightness of the display sub-pixel and a complementary color gain, and determine any one of the Displaying a complementary color gain of the sub-pixel under the target brightness, wherein the correspondence relationship is described in which the any display sub-pixel compensates the target pixel unit to the target color under the initial color and different brightness Complementary gain.
  • the second obtaining module is further configured to acquire a complementary color gain of each display sub-pixel under a plurality of reference brightnesses based on the target color and an initial color of each display sub-pixel;
  • the apparatus further includes an establishing module configured to establish a correspondence between the brightness of each of the display sub-pixels and the complementary color gain under the target color and the initial color of each of the display sub-pixels.
  • the second obtaining module includes:
  • a first determining submodule configured to determine, according to the initial color of the at least two display sub-pixels, a first initial color of the target pixel unit, where the first brightness is the target brightness or Any one of the plurality of reference brightnesses;
  • a first obtaining submodule configured to acquire, respectively, a first substitution of an initial color of each display subpixel with respect to the first initial color based on the first initial color and an initial color of the at least two display subpixels a ratio, the first substitution ratio is a ratio of an initial color of each display sub-pixel in the first initial color;
  • a second obtaining submodule configured to acquire, according to the target color and an initial color of the at least two display sub-pixels, a second substitution ratio of an initial color of each display sub-pixel with respect to the target color,
  • the second substitution ratio is a ratio of an initial color of each display sub-pixel in the target color
  • a second determining submodule configured to respectively determine a first complementary color coefficient of the first initial color at the first brightness based on a first substitution ratio and a second substitution ratio, and the target color is at the first a second complementary color coefficient for brightness, the first complementary color coefficient for characterizing a degree of chromaticity compensation required to acquire the first initial color, the second complementary color coefficient being used to characterize when acquiring the target color The degree to which chroma compensation is required;
  • a third determining submodule configured to determine a complementary color gain of each of the display sub-pixels at the first brightness based on the first complementary color coefficient and the second complementary color coefficient.
  • the at least two display sub-pixels comprise a first sub-pixel, a second sub-pixel and a third sub-pixel, and when the color of the sub-pixel is represented by color coordinates, the first sub-pixel corresponds to the j-th substitution ratio R Wj1, j-substitution ratio corresponding to the second sub-pixel R Wj2, j-substitution ratio corresponding to the third sub-pixel R Wj3, satisfy:
  • the j is 1 or 2
  • the color coordinates of the initial color of the first sub-pixel are (B X , B Y )
  • the color coordinates of the initial color of the second sub-pixel are (G X , G Y
  • the color coordinates of the initial color of the third sub-pixel are (R X , R Y )
  • the color coordinates of the first initial color are (W 1X , W 1Y )
  • the color coordinates of the target color are ( W 2X , W 2Y )
  • the R Z 1-R X -R Y
  • G Z 1-G X -G Y
  • B Z 1-B X -B Y
  • W 1Z 1-W 1X -W 1Y
  • W 2Z 1-W 2X -W 2Y .
  • the second determining sub-module is configured to:
  • the dominant color component being the largest percentage of color components that cause the first initial color to deviate from the target color
  • a second substitution ratio of the sub-pixel whose luminescent color is the dominant color component is determined as the second complementary color coefficient.
  • the at least two display sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel
  • the second determining sub-module is configured to:
  • a display device comprising: a chromaticity compensation device, the chromaticity compensation device comprising:
  • a first acquiring module configured to acquire an initial color of the display sub-pixel in the target pixel unit at the target brightness, and a target color of the target pixel unit under the target brightness, where the target pixel unit includes: different illuminating colors At least two display sub-pixels;
  • a second acquiring module configured to acquire a complementary color gain of each display sub-pixel under the target brightness based on the target color and an initial color of each display sub-pixel
  • a compensation module configured to compensate a chrominance of the target pixel unit based on a complementary color gain of the display sub-pixel at the target brightness
  • the complementary color gain of any of the display sub-pixels at the target brightness is used to represent that when the color of the target pixel unit is compensated from the initial color to the target color under the target brightness, A degree to which the sub-pixels are compensated.
  • a chromaticity compensation apparatus comprising:
  • the memory stores at least one program, the at least one program being configured to be executed by the processor, the at least one program being executable by the processor to implement the chromaticity compensation method of any of the above aspects.
  • a storage medium having stored therein a computer program capable of implementing the chromaticity compensation method of any of the above aspects when the stored computer program is executed by a processor.
  • FIG. 1 is a flowchart of a chroma compensation method according to an embodiment of the present disclosure
  • FIG. 3 is a flowchart of a method for separately acquiring a complementary color gain of each display sub-pixel according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of color coordinates of an R sub-pixel, a G sub-pixel, a B sub-pixel, and a W sub-pixel provided by an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of X-axis color coordinates of a W sub-pixel according to an embodiment of the present disclosure as a function of brightness;
  • FIG. 6 is a schematic diagram of a Y-axis color coordinate of a W sub-pixel according to an embodiment of the present disclosure as a function of brightness
  • FIG. 7 is a flowchart of a method for determining the first complementary color coefficient and the second complementary color coefficient according to an embodiment of the present disclosure
  • FIG. 8 is a schematic diagram of a complementary color gain of a B sub-pixel at different brightnesses according to an embodiment of the present disclosure
  • FIG. 9 is a schematic diagram of a complementary color gain of a G sub-pixel at different brightnesses according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of a complementary color gain of a R sub-pixel corresponding to different brightnesses according to an embodiment of the present disclosure
  • FIG. 11 is a schematic diagram of querying a correspondence between brightness of a display sub-pixel and complementary color gain based on a target color and an initial color of any display sub-pixel according to an embodiment of the present disclosure, to determine that any display sub-pixel is under target brightness.
  • FIG. 12 is a schematic structural diagram of a chromaticity compensation apparatus according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another chromaticity compensation apparatus according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a second acquiring module according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of a timing controller according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of a pixel unit according to an embodiment of the present disclosure.
  • the color of the W sub-pixel is determined based on the principle of colorimetry, according to the color of the R sub-pixel, the color of the G sub-pixel, and the color of the G sub-pixel, and the color presented by the display panel
  • the color displayed for the R sub-pixel, the color displayed by the G sub-pixel, and the color displayed by the B sub-pixel are mixed.
  • it is also required to perform chromaticity compensation on the pixel unit in the display panel according to the requirements of different application scenarios, so that the color presented by the display panel satisfies the corresponding application scenario, so as to improve display flexibility of the display panel.
  • Embodiments of the present disclosure provide a chrominance compensation method for performing chrominance compensation on pixel units in a display panel.
  • the display panel comprises a plurality of pixel units, each pixel unit comprising at least two display sub-pixels of different colors.
  • the method can include:
  • Step 101 Acquire an initial color of the display sub-pixel in the target pixel unit at the target brightness, and a target color of the target pixel unit under the target brightness.
  • the target pixel unit includes at least two display sub-pixels having different illuminating colors.
  • the target color is a color that the target pixel unit should present after chrominance compensation of the target pixel unit.
  • the target color may be a color that the target pixel unit needs to present according to the requirements of the application scenario.
  • Step 102 Acquire a complementary color gain of each display sub-pixel under the target brightness based on the target color and the initial color of each display sub-pixel.
  • Step 103 Compensate for the chromaticity of the target pixel unit based on the complementary color gain of each display sub-pixel at the target luminance.
  • the complementary color gain of any of the display sub-pixels under the target brightness is used to characterize the degree to which any of the display sub-pixels needs to be compensated when the color of the target pixel unit is compensated from the initial color to the target color under the target brightness.
  • the chrominance compensation method acquires the complementary color gain of each display sub-pixel under the target brightness based on the target color and the initial color of each display sub-pixel, and is based on the complementary color gain.
  • the chromaticity of the target pixel unit is compensated, and the color displayed on the display panel can be compensated according to different applications, so that the color presented by the display panel satisfies different application scenarios, thereby improving display flexibility of the display panel and enabling the display panel. Can be applied to a variety of application scenarios.
  • the complementary color gain of each display sub-pixel may be acquired in real time during display of the display panel, and the target pixel unit may be chroma compensated according to the complementary color gain.
  • the correspondence between the brightness of the display sub-pixel and the complementary color gain may be established in advance, and when the complementary color gain of the display sub-pixel needs to be acquired, the corresponding relationship may be queried to obtain the complementary color gain of the display sub-pixel.
  • the chromaticity compensation method provided by the embodiment of the present disclosure will be described below by taking the pre-established correspondence and querying the corresponding relationship to obtain the complementary color gain of the display sub-pixel. As shown in FIG. 2, the method may include:
  • Step 201 Acquire a complementary color gain of each display sub-pixel under a plurality of reference brightnesses based on the target color and the initial color of each display sub-pixel.
  • the display panel comprises a plurality of pixel units, and each pixel unit comprises at least two display sub-pixels.
  • a complementary color gain of all or a part of the pixel units in the plurality of pixel units may be acquired, and a correspondence between the brightness and the complementary color gain is established, so as to be acquired according to the corresponding relationship during use of the subsequent display panel.
  • the complementary color gain of the sub-pixel at the target brightness is displayed, and the chromaticity compensation of the display panel is implemented according to the complementary color gain.
  • the pixel unit in which the display sub-pixel that needs to acquire the complementary color gain is referred to as a reference pixel unit.
  • the reference pixel unit is any one of all pixel units in the display panel.
  • the reference pixel unit may be a target pixel unit that needs to perform chrominance compensation in the subsequent chromaticity compensation process, or may not be the target pixel unit, which is not specifically limited in the embodiment of the present disclosure.
  • obtaining the complementary color gain of each display sub-pixel under a plurality of reference luminances may include the following steps.
  • the first brightness is any one of a plurality of reference brightnesses.
  • Step 2011 Determine, at a first brightness, a first initial color of the target pixel unit based on an initial color of the at least two display sub-pixels.
  • the initial color of each display sub-pixel may be a color stored in a memory of the display device. And the initial color may be measured by an optical instrument and stored in the memory during display of the display panel. Moreover, since the color of the pixel unit is obtained by mixing the colors of the respective display sub-pixels in the pixel unit, based on the principle of colorimetry, the first initial of the reference pixel unit can be determined according to the initial color of each display sub-pixel. colour.
  • At least two display sub-pixels include: R sub-pixels, G sub-pixels, and B sub-pixels.
  • color coordinates determined according to initial colors of each display sub-pixel
  • the position in the color coordinate system is as shown in FIG. 4, and based on the principle of colorimetry, the first initial color of the reference pixel unit can be determined according to the initial colors of the R sub-pixel, the G sub-pixel, and the B sub-pixel,
  • the position of the color coordinate corresponding to the first initial color is as shown by W in FIG. 4, and it can be seen from FIG. 4 that the position of the color coordinate of the reference pixel unit is located in the color of the R sub-pixel, the G sub-pixel, and the B sub-pixel.
  • FIG. 5 and FIG. 6 are schematic diagrams of the X-axis color coordinate and the Y-axis color coordinate of the pixel unit as a function of brightness, and it can be seen from FIG. 5 and FIG. 6 that the color coordinates of the pixel unit are different under different brightness, and The x-axis color coordinates and the y-axis color coordinates differ depending on the brightness. Therefore, it is necessary to determine the complementary color gain of each display sub-pixel according to different brightness.
  • Step 2012 Acquire, according to the first initial color and the initial colors of the at least two display sub-pixels, a first substitution ratio of the initial color of each display sub-pixel with respect to the first initial color.
  • the first substitution ratio is a ratio of an initial color of each display sub-pixel in the first initial color.
  • At least two display sub-pixels in the reference pixel unit may include a first sub-pixel, a second sub-pixel, and a third sub-pixel.
  • the first sub-pixel may be a B sub-pixel
  • the second sub-pixel may be The G sub-pixel
  • the third sub-pixel may be an R sub-pixel.
  • the color of the sub-pixel is represented by the color coordinate
  • the first sub-pixel corresponds to the first substitution ratio R W1B
  • the second sub-pixel corresponds to the first substitution ratio R W1G
  • the first substituting ratio R W1R corresponding to the third sub-pixel satisfies:
  • the color coordinates of the initial color of the first sub-pixel are (B X , B Y ), the color coordinates of the initial color of the second sub-pixel are (G X , G Y ), and the color coordinates of the initial color of the third sub-pixel
  • the color coordinates of the first initial color are (W 1X , W 1Y )
  • the color coordinates of the target color are (W 2X , W 2Y )
  • R Z 1-R X -R Y
  • G Z 1 - G X - G Y
  • B Z 1 - B X - B Y
  • W 1Z 1 - W 1X - W 1Y .
  • Step 2013 Acquire a second substitution ratio of the initial color of each display sub-pixel with respect to the target color, respectively, based on the target color and the initial colors of the at least two display sub-pixels.
  • the second substitution ratio is a proportion of an initial color of each display sub-pixel in the target color
  • the target color is a chromaticity of the reference pixel unit when the colors of each display sub-pixel are respective initial colors.
  • the target color may be a color that the reference pixel unit required by an application scene finally needs to be presented when the colors of each display sub-pixel are their respective initial colors.
  • the display panel should be rendered as a standard white in the conventional display, but the target presented by the display panel according to the application scenario requirements.
  • the color should be a reddish white display.
  • the implementation process of the step 2013 can refer to step 2012 correspondingly, and details are not described herein again.
  • Step 2014 Determine a first complementary color coefficient of the first initial color at the first brightness and a second complementary color coefficient of the target color at the first brightness, respectively, based on the first substitution ratio and the second substitution ratio.
  • the first complementary color coefficient is used to characterize the degree of chromaticity compensation required when acquiring the first initial color
  • the second complementary color coefficient is used to characterize the degree of chromaticity compensation required when acquiring the target color.
  • the first complementary color coefficient can be regarded as the extent to which the initial signal needs to be compensated when the conversion is performed according to the initial signal in the conversion process of the conventional display to obtain a signal for causing the pixel unit to present the first initial color.
  • the second complementary color coefficient can be regarded as the degree of compensation of the initial signal when the conversion is performed according to the initial signal on the basis of the conventional display to obtain a signal for causing the pixel unit to present the target color.
  • the first complementary color coefficient and the second complementary color coefficient may be determined according to a relative position of a color coordinate of the first initial color and a color coordinate of the target color.
  • an implementation manner thereof may include:
  • Step 2014a1 Obtain the relative position of the color coordinate of the first initial color and the color coordinate of the target color in the color coordinate system.
  • the color coordinate system may be a color coordinate system established in accordance with the colorimetric standard CIE1931 established by the International Commission on Illumination. After determining the position of the color coordinate of the first initial color in the color coordinate system and the position of the color coordinate of the target color in the color coordinate system, the relative positions of the two can be determined.
  • the relative position can be expressed at least as follows: first: W 1Y ⁇ W 2Y , second: W 1X ⁇ W 2X and W 1Y ⁇ W 2Y , third: W 1X ⁇ W 2X and W 1Y ⁇ W 2Y , where (W 1X , W 1Y ) is the color coordinate of the first initial color, and (W 2X , W 2Y ) is the color coordinate of the target color.
  • Step 2014a2 based on the relative position, determines a dominant color component that causes the first initial color to deviate from the target color.
  • the dominant color component is a color component that causes the first initial color to deviate from the target color by the largest proportion; for example, when the first initial color is more reddish with respect to the target color, the dominant color component may be red. Or, as shown in FIG. 4, when the first initial color is biased toward blue and red toward the target color, and the degree of bias toward blue is greater than the degree of bias toward red, the dominant color component may be blue. .
  • each pixel unit may include a first sub-pixel, a second sub-pixel, and a third sub-pixel, and when the color of the sub-pixel is characterized by the color coordinate, based on the relative position, determining to cause the first initial color to deviate from the target color
  • the implementation process of the color component may include: when the color coordinates (W 1X , W 1Y ) of the first initial color and the color coordinates (W 2X , W 2Y ) of the target color satisfy: W 1Y ⁇ W 2Y , the second sub- The luminescent color of the pixel is determined to be the dominant color component.
  • the illumination of the third sub-pixel is performed The color is determined to be the dominant color component.
  • the color coordinates (W 1X , W 1Y ) of the first initial color and the color coordinates (W 2X , W 2Y ) of the target color satisfy: W 1X ⁇ W 2X and W 1Y ⁇ W 2Y
  • the illumination of the first sub-pixel is performed The color is determined to be the dominant color component.
  • step 2014a3 the first substitution ratio of the sub-pixel whose emission color is the dominant color component is determined as the first complementary color coefficient, and the second substitution ratio of the sub-pixel whose emission color is the dominant color component is determined as the second complementary color coefficient.
  • the conversion is performed according to the initial signal during the conversion process to obtain a signal that causes the pixel unit to appear as the first initial color, and then may correspond to the dominant color component.
  • the first substitution ratio performs chrominance compensation on the initial signal.
  • the initial signal may be chroma compensated according to the second substitution ratio corresponding to the dominant color component. Therefore, the first substitution ratio of the sub-pixel whose emission color is the dominant color component can be determined as the first complementary color coefficient, and the second substitution ratio of the sub-pixel whose emission color is the dominant color component can be determined as the second complementary color coefficient.
  • the second sub-pixel may be corresponding.
  • the first substitution ratio R W12 is determined as the first complementary color coefficient R W1
  • the third sub- The first substitution ratio R W13 corresponding to the pixel is determined as the first complementary color coefficient R W1
  • the first sub- The first substitution ratio R W11 corresponding to the pixel is determined as the first complementary color coefficient R W1
  • Step 2015 Determine a complementary color gain of each display sub-pixel at the first brightness based on the first complementary color coefficient and the second complementary color coefficient.
  • the first complementary color coefficient R W1 , the second complementary color coefficient R W2 , and the complementary color gain Gi of the i-th sub-pixel at the first brightness satisfy:
  • R W2i is a second substitution ratio corresponding to the i-th sub-pixel
  • R W1i is a first substitution ratio corresponding to the i-th sub-pixel
  • n is a bit number of a driving output signal supplied to the sub-pixel, and the driving output signal is used for The sub-pixel is driven to emit light.
  • the driving output signals supplied to each of the display sub-pixels are all 8-bit signals
  • the complementary color gain G 1 corresponding to the first sub-pixel, the complementary color gain G 2 corresponding to the second sub-pixel, and the complementary color gain G 3 corresponding to the third sub-pixel are respectively:
  • Step 202 Establish a correspondence between the brightness of each display sub-pixel and the complementary color gain under the target color and the initial color of each display sub-pixel.
  • step 201 the complementary color gain of each display sub-pixel under different reference brightness in the target color and each display sub-pixel in each initial color can be obtained, according to which
  • the display sub-pixel, the complementary color gain, and the luminance are in one-to-one correspondence, and the correspondence relationship between the luminance of each display sub-pixel and the complementary color gain can be obtained.
  • the representation of the corresponding relationship may be multiple, for example, the correspondence may be represented by a table, or the corresponding relationship may be represented by a curve, and the curve corresponding to any display sub-pixel may be according to any of A curve fitting of the complementary color gain of the sub-pixels at a plurality of reference luminances is performed.
  • a plurality of reference luminances may be selected within a range of luminances in which the display sub-pixels can be displayed, and complementary color gains corresponding to the display sub-pixels at each reference luminance are respectively obtained, and each of the reference luminances and the corresponding complementary color gains constitute a feature.
  • a plurality of feature points are curve-fitted by a quadratic curve fitting method to obtain a curve for characterizing the correspondence between the brightness of the display sub-pixel and the complementary color gain.
  • Each display sub-pixel may correspond to multiple sets of correspondences, and each set of correspondences is used to represent an initial color based on the display sub-pixel, and the reference pixel unit where the display sub-pixel is located is compensated to the target color, and the brightness and compensation are compensated.
  • the correspondence of gains are used to represent an initial color based on the display sub-pixel, and the reference pixel unit where the display sub-pixel is located is compensated to the target color, and the brightness and compensation are compensated.
  • the first sub-pixel is a B sub-pixel
  • the second sub-pixel is a G sub-pixel
  • the third sub-pixel is an R pixel.
  • the B sub-pixel is at different brightness.
  • FIG. 8 for the corresponding complementary color gain.
  • the graph of FIG. 8 is used to characterize the correspondence between the luminance and the compensation gain when the reference pixel unit in which the B sub-pixel is located is compensated to the target color based on an initial color of the B sub-pixel.
  • the complementary color gain of the G sub-pixels at different brightness please refer to FIG. 9.
  • FIG. 9 is used to represent an initial color based on the G sub-pixel, and the reference pixel unit where the G sub-pixel is located is compensated to the target color. , the correspondence between brightness and compensation gain.
  • FIG. 10 is used to represent an initial color based on the R sub-pixel, and the reference pixel unit where the R sub-pixel is located is compensated to the target color. , the correspondence between brightness and compensation gain.
  • FIG. 8, FIG. 9, and FIG. 10 it can be seen that the correspondence relationship between different sub-pixels and the complementary color gain under different brightnesses exhibits different changing trends.
  • Step 203 Acquire an initial color of the display sub-pixel in the target pixel unit under the target brightness, and a target color of the target pixel unit under the target brightness.
  • the target pixel unit and the reference pixel unit may be pixel units in the same display panel. Since the pixel units in the same display panel have substantially the same display characteristics, when the target pixel unit is subjected to chromaticity compensation according to the correspondence relationship acquired by the reference pixel unit, the accuracy of the compensation can be ensured.
  • the target color of the target pixel unit may be determined under the indication of the application requirements.
  • the target color of the target pixel unit may be a specified color.
  • the initial color of the display sub-pixel can be determined according to the picture to be displayed.
  • the initial colors of the display sub-pixels and the target colors of the corresponding target pixel units may all be stored in the memory of the display device. During the display process, the initial color and the target color can be obtained by reading the data stored in the memory.
  • Step 204 Acquire, respectively, a complementary color gain of each display sub-pixel under the target brightness based on the target color and the initial color of each display sub-pixel.
  • the correspondence between the brightness of any of the display sub-pixels and the complementary color gain may be queried based on the target color and the initial color of any of the display sub-pixels to determine the complementary color gain of any of the display sub-pixels at the target brightness.
  • any of the display sub-pixels compensates the target pixel unit to the complementary color of the target color in the initial color and the different brightness.
  • the implementation process may include:
  • Step 2041 Query a correspondence according to the target brightness.
  • a complementary color gain corresponding to the display sub-pixels under a plurality of reference luminances may be recorded, that is, the complementary color of the display sub-pixels at all luminances may not be recorded in the comparison relationship, and therefore, the display sub-pixel is acquired.
  • the corresponding relationship may be firstly queried according to the target brightness to determine whether the target brightness is recorded in the corresponding relationship, and when the target brightness is recorded in the corresponding relationship, step 2042 is performed; When the target brightness is not described in the correspondence, step 2043 is performed.
  • Step 2042 When the target brightness is described in the correspondence relationship, the complementary color gain corresponding to the target brightness is determined as the complementary color gain of any of the display sub-pixels at the target brightness.
  • the correspondence relationship may be queried according to the target brightness, and the complementary color gain corresponding to the display sub-pixel under the target brightness is respectively determined as the complementary color gain of the target display sub-pixel at the target brightness ( For convenience of description, hereinafter referred to as the target complementary color gain).
  • the target brightness is 100 nits
  • the corresponding relationship shown in FIG. 9 and FIG. 10 describes a complementary color gain corresponding to each of the display sub-pixels in the target pixel unit under the plurality of reference luminances, and it is known that the target corresponding to the target luminance is recorded in the correspondence relationship. Complementary gain, according to the target brightness, respectively, the corresponding relationship shown in FIG. 8, FIG. 9 and FIG.
  • the complementary color gain of the B sub-pixel at the target brightness is 86
  • the G sub-pixel corresponds to the target brightness.
  • the complementary color gain is 0, and the complementary color gain of the R sub-pixel at the target brightness is 41
  • 86 can be determined as the target complementary color gain of the B sub-pixel at the target brightness
  • 0 is determined as the G sub-pixel at the target brightness.
  • the lower target complementary color gain is determined as the target complementary color gain of the R sub-pixel at the target luminance.
  • step 2043 when the target brightness is not recorded in the correspondence, the first candidate brightness and the second candidate brightness are determined among the plurality of brightnesses described in the correspondence relationship, and the first candidate brightness is less than the target brightness. And the brightness that is the smallest difference from the brightness of the target brightness, and the second candidate brightness is the brightness of the plurality of brightnesses that is greater than the target brightness and the difference from the brightness of the target brightness is the smallest.
  • the brightness other than the minimum brightness and the maximum brightness among the plurality of reference brightnesses may be used as the dividing point, and the brightness range with the minimum brightness and the maximum brightness as the end point is divided into a plurality of brightness intervals, at this time, when When the target brightness is not recorded in the correspondence relationship, the target brightness interval in which the target brightness is located may be determined first, and then the complementary color gain corresponding to the target brightness may be determined according to the complementary color gain corresponding to the two reference brightnesses at the end point of the target brightness interval. That is, step 2064 is performed, and the two reference brightnesses at the end points of the target brightness interval are the first candidate brightness and the second candidate brightness, respectively.
  • Step 2044 Determine, according to the target brightness, the first candidate brightness, the second candidate brightness, the complementary color gain corresponding to the first candidate brightness, and the complementary color gain corresponding to the second candidate brightness, determine whether any of the display sub-pixels are in accordance with a linear interpolation method.
  • the complementary color gain at the target brightness is determined by the target brightness.
  • determining the first candidate brightness and the second candidate brightness After determining the first candidate brightness and the second candidate brightness, determining, according to the first candidate brightness and the second candidate brightness, a target complementary color gain corresponding to the target brightness of any display sub-pixel based on the linear interpolation method .
  • the target brightness is L1
  • the first candidate brightness is L2
  • the second candidate brightness is L3
  • the complementary color gain corresponding to the display sub-pixel i under the first candidate brightness is G i1
  • the display is performed.
  • the complementary color gain corresponding to the sub-pixel i under the second candidate brightness is G i2
  • the target complementary color gain G iL1 corresponding to the display sub-pixel i under the target brightness may be determined according to a linear interpolation formula, and the linear interpolation formula is:
  • the target brightness is 40 nits
  • the first candidate brightness is 25 nits
  • the second candidate brightness is 50 nits
  • the first sub-pixel and the second sub-pixel The complementary color gains corresponding to the third sub-pixels at the first candidate brightness are 95, 0, and 55, respectively, and the complementary colors corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel at the second candidate brightness.
  • the gains are 91, 0, and 47, respectively.
  • the target complementary color gains of the first sub-pixel, the second sub-pixel, and the third sub-pixel at the target luminance are 92.6, 0, and 50.2, respectively.
  • the real-time calculation process of the complementary color gain of each display sub-pixel under the target brightness may be referred to step 2011 to step 2015, at this time, in step 2011 to step 2015.
  • the first brightness is the target brightness.
  • the above steps 201 to 202 may be selected not to be performed.
  • Step 205 Determine, according to a complementary color gain of any display sub-pixel at a target brightness, a driving output signal provided to the any display sub-pixel, and provide the driving output signal to the any display sub-pixel for the driving based on the driving The output signal compensates for the chrominance of the target pixel unit.
  • the white light-emitting sub-pixel in the display sub-pixel can be changed according to the target complementary color gain.
  • the brightness of the light is changed, so that the color of the display sub-pixel is changed, thereby changing the color of the light emitted by the target pixel unit, thereby achieving chromaticity compensation for the target pixel unit.
  • the target output brightness of the any display sub-pixel may be determined according to the target complementary color gain, and determining, according to the target output brightness of the any display sub-pixel, driving the display sub-pixel to achieve the target output brightness a desired data signal (Data signal), and the data signal is sent to the source driver, so that the source driver generates a corresponding driving output signal according to the data signal, and provides the driving output signal to the any display sub-pixel,
  • Data signal desired data signal
  • the driving output signal is used to charge the corresponding sub-pixels to drive the corresponding sub-pixels for display, thereby implementing chromaticity compensation for the target pixel unit.
  • determining, according to the target complementary color gain, the target output brightness of any of the display sub-pixels may include: determining a brightness gain based on the target complementary color gain, and updating the sum of the original brightness and the brightness gain of the any display sub-pixel The brightness is output for the corresponding target, and the brightness of the white sub-pixel in the target pixel unit is kept constant, wherein the brightness gain of the any display sub-pixel can be determined according to the maximum gray value and the target brightness that can be displayed by the target pixel unit.
  • the chrominance compensation method acquires the complementary color gain of each display sub-pixel under the target brightness based on the target color and the initial color of each display sub-pixel, and is based on the complementary color gain.
  • the chromaticity of the target pixel unit is compensated, and the color displayed on the display panel can be compensated according to different applications, so that the color presented by the display panel satisfies different application scenarios, thereby improving display flexibility of the display panel and enabling the display panel. Can be applied to a variety of application scenarios.
  • the device 700 may include:
  • the first obtaining module 701 is configured to acquire an initial color of the display sub-pixel in the target pixel unit at the target brightness, and a target color of the target pixel unit at the target brightness, where the target pixel unit includes at least two display elements with different illuminating colors. Pixel.
  • the second obtaining module 702 is configured to acquire a complementary color gain of each display sub-pixel under the target brightness based on the target color and the initial color of each display sub-pixel.
  • the compensation module 703 is configured to compensate the chromaticity of the target pixel unit based on the complementary color gain of each display sub-pixel at the target luminance.
  • the complementary color gain of any of the display sub-pixels under the target brightness is used to characterize the degree to which any of the display sub-pixels needs to be compensated when the color of the target pixel unit is compensated from the initial color to the target color under the target brightness.
  • the chrominance compensation apparatus acquires the complementary color gain of each display sub-pixel under the target brightness by using the second acquisition module based on the target color and the initial color of each display sub-pixel.
  • the module compensates the chromaticity of the target pixel unit based on the complementary color gain, and can compensate the color displayed on the display panel according to different applications, so that the color presented by the display panel satisfies different application scenarios, thereby improving the display panel flexibility.
  • Sexuality makes the display panel suitable for various application scenarios.
  • the second obtaining module 702 is configured to query, according to the target color and the initial color of any display sub-pixel, the correspondence between the brightness of the display sub-pixel and the complementary color gain, and determine that any of the display sub-pixels is at the target brightness.
  • the complementary color gain in which the matching sub-pixel is compensated for the complementary color gain of the target pixel unit to the target color in the initial color and the different brightness.
  • the second obtaining module 702 is further configured to separately acquire a complementary color gain of each display sub-pixel under a plurality of reference luminances based on the target color and the initial color of each display sub-pixel.
  • the apparatus 700 may further include: an establishing module 704, configured to establish a correspondence between the brightness of each display sub-pixel and the complementary color gain under the target color and the initial color of each display sub-pixel.
  • the second obtaining module 702 may include:
  • the first determining sub-module 7021 is configured to determine, according to the initial color of the at least two display sub-pixels, the first initial color of the target pixel unit, where the first brightness is any one of the target brightness or the plurality of reference brightnesses One.
  • the first obtaining sub-module 7022 is configured to acquire, according to the first initial color and the initial color of the at least two display sub-pixels, a first substitution ratio of the initial color of each display sub-pixel with respect to the first initial color, the first replacement The ratio is the proportion of the initial color of each display sub-pixel in the first initial color.
  • a second obtaining sub-module 7023 configured to acquire, according to the target color and the initial color of the at least two display sub-pixels, a second substitution ratio of the initial color of each display sub-pixel with respect to the target color, where the second substitution ratio is Shows the proportion of the initial color of the subpixel in the target color.
  • a second determining sub-module 7024 configured to determine a first complementary color coefficient of the first initial color at the first brightness and a second complementary color coefficient of the target color at the first brightness, respectively, based on the first substitution ratio and the second substitution ratio
  • the first complementary color coefficient is used to characterize the degree of chrominance compensation required to obtain the first initial color
  • the second complementary color coefficient is used to characterize the degree to which chromaticity compensation is required when acquiring the target color.
  • the third determining sub-module 7025 is configured to determine, according to the first complementary color coefficient and the second complementary color coefficient, a complementary color gain of each display sub-pixel at the first brightness.
  • the at least two display sub-pixels may include a first sub-pixel, a second sub-pixel, and a third sub-pixel.
  • the j-substituency ratio R Wj1 corresponding to the first sub-pixel the second sub-pixel corresponding to the j-substitution rate R Wj2, j-substitution ratio corresponding to the third sub-pixels R Wj3, satisfy:
  • the color coordinates of the initial color of the first sub-pixel are (B X , B Y ), and the color coordinates of the initial color of the second sub-pixel are (G X , G Y ), and the third sub-pixel
  • the color coordinates of the initial color are (R X , R Y )
  • the color coordinates of the first initial color are (W 1X , W 1Y )
  • the color coordinates of the first target color are (W 2X , W 2Y )
  • R Z 1-R X -R Y
  • G Z 1-G X -G Y
  • B Z 1-B X -B Y
  • W 1Z 1-W 1X -W 1Y
  • W 2Z 1-W 2X - W 2Y .
  • the second determining sub-module 7024 is configured to:
  • the dominant color component being a color component that causes the first initial color to deviate from the target color
  • the second substitution ratio of the sub-pixel whose luminescent color is the dominant color component is determined as the second complementary color coefficient.
  • the at least two display sub-pixels may include a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the second determining sub-module 7024 is configured to:
  • the color of the second sub-pixel is determined to be dominant. Color component.
  • the third sub-pixel is The illuminating color is determined as the dominant color component.
  • the first sub-pixel is to be The illuminating color is determined as the dominant color component.
  • the first complementary color coefficient R W1 , the second complementary color coefficient R W2 , and the complementary color gain G i of the ith sub-pixel at the first brightness satisfy:
  • R W2i is a second substitution ratio corresponding to the i-th sub-pixel
  • R W1i is a first substitution ratio corresponding to the i-th sub-pixel
  • n is a number of bits of the driving output signal supplied to the sub-pixel
  • the driving output signal is used for driving The sub-pixel emits light.
  • the second obtaining module 702 is configured to:
  • the complementary color gain corresponding to the target luminance is determined as the complementary color gain.
  • the first candidate brightness and the second candidate brightness are determined among the plurality of brightnesses described in the correspondence relationship, and the first candidate brightness is less than the target brightness among the plurality of brightnesses, and The brightness of the target brightness is the smallest difference, and the second candidate brightness is the brightness of the plurality of brightnesses that is greater than the target brightness and the difference from the brightness of the target brightness is the smallest.
  • the complementary color gain is determined according to the linear interpolation method based on the target brightness, the first candidate brightness, the second candidate brightness, the complementary color gain corresponding to the first candidate brightness, and the complementary color gain corresponding to the second candidate brightness.
  • the compensation module 703 is configured to:
  • a drive output signal is provided to any of the display sub-pixels for compensation of the chrominance of the target pixel unit.
  • the chrominance compensation apparatus acquires the complementary color gain of each display sub-pixel under the target brightness by using the second acquisition module based on the target color and the initial color of each display sub-pixel.
  • the module compensates the chromaticity of the target pixel unit based on the complementary color gain, and can compensate the color displayed on the display panel according to different applications, so that the color presented by the display panel satisfies different application scenarios, thereby improving the display panel flexibility.
  • Sexuality makes the display panel suitable for various application scenarios.
  • Embodiments of the present disclosure provide a display device including: a display panel and a chromaticity compensation device provided by an embodiment of the present disclosure.
  • the display device may be any product or component having a display function such as a liquid crystal panel, an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the display device can be an OLED display device.
  • the display device may further include: a timing controller, a source driver, a gate driver, and a data memory.
  • the chromaticity compensation device provided by the embodiment of the present disclosure may be disposed in the timing controller, and the gate driver and the display panel are connected by a gate line (Gate Line, GL), and the source driver and the display panel pass the data line.
  • Data Line, DL is connected, and the display panel is also loaded with a power signal EL (for example, an anode signal and a cathode signal).
  • the timing controller is configured to read first color data stored in the data memory (eg, initial color or color coordinates of each display sub-pixel), and receive second color data of each display sub-pixel input externally, and receive a timing control signal.
  • the second color data may be data of a color that needs to be displayed by the R sub-pixel, the G sub-pixel, and the B sub-pixel in the application scene, or the second color data may be data of a target color that needs to be displayed by the target pixel unit in the application scene.
  • the timing controller calculates, converts, and compensates for each signal and data, it can generate a Data signal, a Source Control Signal (SCS), and a Gate Control Signal (GCS), and will generate Data.
  • SCS Source Control Signal
  • GCS Gate Control Signal
  • the timing controller includes: a timing conversion unit, a luminance conversion unit, an algorithm compensation unit, a chrominance compensation unit, and a data conversion unit.
  • the chrominance compensation unit is provided with the chrominance compensation device provided by the embodiment of the present disclosure, and the timing conversion unit is configured to receive the timing control signal and generate the SCS and the GCS; and the brightness conversion unit is configured to receive the respective display inputs of the external input.
  • the second color data of the pixel is converted into a luminance signal of each display sub-pixel, and the luminance signal is sent to the algorithm compensation unit; after receiving the luminance signal sent by the luminance conversion unit, the algorithm compensation unit may be based on the RGB-RGBW algorithm a compensation algorithm such as a peak luminance algorithm, a driving TFT eigenvalue compensation, an OLED eigenvalue compensation, and an optical compensation compensates the luminance signal, and transmits the compensated luminance signal to the chrominance compensation unit; the chrominance compensation unit can be implemented according to the present disclosure.
  • the chromaticity compensation method provided by the example performs chromaticity compensation on color coordinates of different pixel units, different colors and different brightness, generates a chrominance-compensated luminance signal, and sends the chrominance-compensated luminance signal to the data conversion unit;
  • the data conversion unit can convert the luminance signal into a grayscale data signal (eg, a Data signal), Transmitting the gray scale data signal to the source driver, the source driver generates an output signal corresponding to driving based on the gray scale data signal, and supplies the display sub-pixel driving signal is output to the display drive pixel units.
  • a grayscale data signal eg, a Data signal
  • the data memory stores color coordinate data of different pixels, different colors, and different brightness in the display panel, and characteristic values of different driving thin film transistors (TFTs) (for example, threshold voltage Vth and mobility K of the TFT) And other characteristic values), and also store characteristic values of different OLED devices (for example, threshold voltage V oled of OLED ), and also store different TFT characteristic values and optical compensation characteristic values of different OLED devices and the like.
  • TFTs driving thin film transistors
  • OLED devices for example, threshold voltage V oled of OLED
  • the source driver is configured to receive the data signal and the SCS outputted by the timing controller, generate a source driving voltage according to the source driving voltage, and send the source driving voltage to the display panel through the data line DL;
  • the gate driver is configured to receive the GCS, according to the The GCS generates a gate driving signal and transmits the gate driving signal to the display panel through at least one gate line GL.
  • the display panel includes a plurality of pixel units and a power source that drives the OLED to emit light (for example, an anode power source ELVDD and a cathode power source ELVSS).
  • each pixel unit includes: at least one data line DL, at least one gate line GL, an OLED device, a storage capacitor Cst, a switching TFT T1, a driving TFT T2, an anode power source ELVDD, and a cathode power source ELVSS.
  • Embodiments of the present disclosure provide a chrominance compensation apparatus including: a processor and a memory.
  • the memory stores at least one program, the at least one program being configured to be executed by a processor, and the at least one program being executed by the processor to implement the chrominance compensation method provided by the embodiments of the present disclosure.
  • the embodiment of the present disclosure provides a storage medium, which may be a non-volatile storage medium.
  • the storage medium stores a computer program.
  • the chromaticity provided by the embodiment of the present disclosure can be implemented. Compensation method.

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Abstract

一种色度补偿方法及装置、设备、显示装置、存储介质，其中色度补偿方法包括：获取目标像素单元中显示子像素在目标亮度下的初始颜色，及目标像素单元在目标亮度下的目标颜色(101)，目标像素单元包括发光颜色不同的至少两个显示子像素；基于目标颜色和每个显示子像素的初始颜色，在目标亮度下，分别获取每个显示子像素的补色增益(102)；基于每个显示子像素在目标亮度下的补色增益，对目标像素单元的色度进行补偿(103)。色度补偿方法提高了显示面板的显示灵活性。

Description

色度补偿方法及装置、设备、显示装置、存储介质
本公开要求于2018年04月17日提交的申请号为201810345229.7、发明名称为“色度补偿方法及装置、显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及显示领域，特别涉及一种色度补偿方法及装置、设备、显示装置、存储介质。
背景技术
有机电致发光二极管(Organic Light-Emitting Diode，OLED)作为一种电流型发光器件已越来越多地被应用于高性能显示装置中，并且，为了提高OLED显示装置的发光效率，由红色(R)子像素、绿色(G)子像素、蓝色(B)子像素和白色(W)子像素所组成的新的RGBW OLED显示装置应运而生。其中，W子像素的颜色基于R子像素的颜色、G子像素的颜色和B子像素的颜色确定。
发明内容
本公开实施例提供了一种色度补偿方法及装置、设备、显示装置、存储介质。所述技术方案如下：
一方面，提供了一种色度补偿方法，所述方法包括：
获取目标像素单元中显示子像素在目标亮度下的初始颜色，及所述目标像素单元在所述目标亮度下的目标颜色，所述目标像素单元包括：发光颜色不同的至少两个显示子像素；
基于所述目标颜色和每个显示子像素的初始颜色，在所述目标亮度下，分别获取每个显示子像素的补色增益；
基于每个显示子像素在所述目标亮度下的补色增益，对所述目标像素单元的色度进行补偿；
其中，任一显示子像素在所述目标亮度下的补色增益用于表征在所述目标亮度下，将所述目标像素单元的颜色由初始颜色补偿至所述目标颜色时，需要 对所述任一显示子像素进行补偿的程度。
可选地，所述基于所述目标颜色和每个显示子像素的初始颜色，在所述目标亮度下，分别获取每个显示子像素的补色增益，包括：
基于所述目标颜色和任一显示子像素的初始颜色，查询所述任一显示子像素的亮度与补色增益的对应关系，确定所述任一显示子像素在所述目标亮度下的补色增益，所述对应关系中记载有所述任一显示子像素在所述初始颜色和不同亮度下，将所述目标像素单元补偿至所述目标颜色的补色增益。
可选地，在所述基于所述目标颜色和任一显示子像素的初始颜色，查询所述任一显示子像素的亮度与补色增益的对应关系，确定所述任一显示子像素在所述目标亮度下的补色增益之前，所述方法还包括：
基于所述目标颜色和每个显示子像素的初始颜色，在多个参考亮度下，分别获取每个显示子像素的补色增益；
在所述目标颜色和每个显示子像素的初始颜色下，建立每个显示子像素的亮度与补色增益的对应关系。
可选地，所述分别获取每个显示子像素的补色增益，包括：
在第一亮度下，基于所述至少两个显示子像素的初始颜色，确定所述目标像素单元的第一初始颜色，所述第一亮度为所述目标亮度或所述多个参考亮度中的任意一个；
基于所述第一初始颜色和所述至少两个显示子像素的初始颜色，分别获取每个显示子像素的初始颜色相对于所述第一初始颜色的第一取代比例，所述第一取代比例为每个显示子像素的初始颜色在所述第一初始颜色中所占的比例；
基于所述目标颜色和所述至少两个显示子像素的初始颜色，分别获取所述每个显示子像素的初始颜色相对于所述目标颜色的第二取代比例，所述第二取代比例为每个显示子像素的初始颜色在所述目标颜色中所占的比例；
基于第一取代比例和第二取代比例，分别确定所述第一初始颜色在所述第一亮度下的第一补色系数，以及所述目标颜色在所述第一亮度下的第二补色系数，所述第一补色系数用于表征在获取所述第一初始颜色时需要进行色度补偿的程度，所述第二补色系数用于表征在获取所述目标颜色时需要进行色度补偿的程度；
基于所述第一补色系数和所述第二补色系数确定每个显示子像素在所述第一亮度下的补色增益。
可选地，所述至少两个显示子像素包括第一子像素、第二子像素和第三子像素，当子像素的颜色由色坐标表征时，所述第一子像素对应的第j取代比例R Wj1，所述第二子像素对应的第j取代比例R Wj2，所述第三子像素对应的第j取代比例R Wj3，满足：
Figure PCTCN2019082770-appb-000001
Figure PCTCN2019082770-appb-000002
Figure PCTCN2019082770-appb-000003
其中，所述j为1或2，所述第一子像素的初始颜色的色坐标为(B X，B Y)，所述第二子像素的初始颜色的色坐标为(G X，G Y)，所述第三子像素的初始颜色的色坐标为(R X，R Y)，所述第一初始颜色的色坐标为(W 1X，W 1Y)，所述目标颜色的色坐标为(W 2X，W 2Y)，且所述R Z＝1-R X-R Y，G Z＝1-G X-G Y，B Z＝1-B X-B Y，W 1Z＝1-W 1X-W 1Y，W 2Z＝1-W 2X-W 2Y。
可选地，当子像素的颜色由色坐标表征时，所述基于第一取代比例和第二取代比例，分别确定所述第一初始颜色在所述第一亮度下的第一补色系数，以及所述目标颜色在所述第一亮度下的第二补色系数，包括：
获取所述第一初始颜色的色坐标和所述目标颜色的色坐标在色坐标系中的相对位置；
基于所述相对位置，确定导致所述第一初始颜色偏离所述目标颜色的主导颜色分量，所述主导颜色分量为导致所述第一初始颜色偏离所述目标颜色的颜色分量中占比最大的颜色分量；
将发光颜色为所述主导颜色分量的子像素的第一取代比例，确定为所述第一补色系数；
将发光颜色为所述主导颜色分量的子像素的第二取代比例，确定为所述第二补色系数。
可选地，所述至少两个显示子像素包括第一子像素、第二子像素和第三子像素，所述基于所述相对位置，确定导致所述第一初始颜色偏离所述目标颜色 的主导颜色分量，包括：
当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1Y≥W 2Y时，将所述第二子像素的发光颜色确定为所述主导颜色分量；
当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1X≥W 2X且W 1Y<W 2Y时，将所述第三子像素的发光颜色确定为所述主导颜色分量；
当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1X<W 2X且W 1Y<W 2Y时，将所述第一子像素的发光颜色确定为所述主导颜色分量。
可选地，所述第一补色系数R W1、所述第二补色系数R W2和第i子像素在所述第一亮度下的补色增益G i，满足：
Figure PCTCN2019082770-appb-000004
其中，所述R W2i为所述第i子像素对应的第二取代比例，所述R W1i为所述第i子像素对应的第一取代比例，所述n为向子像素提供的驱动输出信号的位数，所述驱动输出信号用于驱动所述子像素发光。
可选地，所述基于所述目标颜色和任一显示子像素的初始颜色，查询所述任一显示子像素的亮度与补色增益的对应关系，确定所述任一显示子像素在所述目标亮度下的补色增益，包括：
根据所述目标亮度查询所述对应关系；
当所述对应关系中记载有所述目标亮度时，将所述目标亮度对应的补色增益确定为所述任一显示子像素在所述目标亮度下的补色增益；
当所述对应关系中未记载有所述目标亮度时，在所述对应关系中记载的多个亮度中确定第一待选亮度和第二待选亮度，所述第一待选亮度为所述多个亮度中小于所述目标亮度，且与所述目标亮度的亮度之差最小的亮度，所述第二待选亮度为所述多个亮度中大于所述目标亮度，且与所述目标亮度的亮度之差最小的亮度；
基于所述目标亮度、所述第一待选亮度、所述第二待选亮度、所述第一待选亮度对应的补色增益和所述第二待选亮度对应的补色增益，根据线性插值法 确定所述任一显示子像素在所述目标亮度下的补色增益。
可选地，基于每个显示子像素在所述目标亮度下的补色增益，对所述目标像素单元的色度进行补偿，包括：
基于任一显示子像素在所述目标亮度下的补色增益，确定向所述任一显示子像素提供的驱动输出信号，所述驱动输出信号用于驱动所述子像素发光；
向所述任一显示子像素提供所述驱动输出信号，以供对所述目标像素单元的色度进行补偿。
另一方面，提供了一种色度补偿装置，所述装置包括：
第一获取模块，用于获取目标像素单元中显示子像素在目标亮度下的初始颜色，及所述目标像素单元在所述目标亮度下的目标颜色，所述目标像素单元包括：发光颜色不同的至少两个显示子像素；
第二获取模块，用于基于所述目标颜色和每个显示子像素的初始颜色，在所述目标亮度下，分别获取每个显示子像素的补色增益；
补偿模块，用于基于每个显示子像素在所述目标亮度下的补色增益，对所述目标像素单元的色度进行补偿；
其中，任一显示子像素在所述目标亮度下的补色增益用于表征在所述目标亮度下，将所述目标像素单元的颜色由初始颜色补偿至所述目标颜色时，需要对所述任一显示子像素进行补偿的程度。
可选地，所述第二获取模块，用于基于所述目标颜色和任一显示子像素的初始颜色，查询所述任一显示子像素的亮度与补色增益的对应关系，确定所述任一显示子像素在所述目标亮度下的补色增益，所述对应关系中记载有所述任一显示子像素在所述初始颜色和不同亮度下，将所述目标像素单元补偿至所述目标颜色的补色增益。
可选地，所述第二获取模块，还用于基于所述目标颜色和每个显示子像素的初始颜色，在多个参考亮度下，分别获取每个显示子像素的补色增益；
所述装置还包括：建立模块，用于在所述目标颜色和每个显示子像素的初始颜色下，建立每个显示子像素的亮度与补色增益的对应关系。
可选地，所述第二获取模块，包括：
第一确定子模块，用于在第一亮度下，基于所述至少两个显示子像素的初始颜色，确定所述目标像素单元的第一初始颜色，所述第一亮度为所述目标亮度或所述多个参考亮度中的任意一个；
第一获取子模块，用于基于所述第一初始颜色和所述至少两个显示子像素的初始颜色，分别获取每个显示子像素的初始颜色相对于所述第一初始颜色的第一取代比例，所述第一取代比例为每个显示子像素的初始颜色在所述第一初始颜色中所占的比例；
第二获取子模块，用于基于所述目标颜色和所述至少两个显示子像素的初始颜色，分别获取所述每个显示子像素的初始颜色相对于所述目标颜色的第二取代比例，所述第二取代比例为每个显示子像素的初始颜色在所述目标颜色中所占的比例；
第二确定子模块，用于基于第一取代比例和第二取代比例，分别确定所述第一初始颜色在所述第一亮度下的第一补色系数，以及所述目标颜色在所述第一亮度下的第二补色系数，所述第一补色系数用于表征在获取所述第一初始颜色时需要进行色度补偿的程度，所述第二补色系数用于表征在获取所述目标颜色时需要进行色度补偿的程度；
第三确定子模块，用于基于所述第一补色系数和所述第二补色系数确定每个显示子像素在所述第一亮度下的补色增益。
可选地，所述至少两个显示子像素包括第一子像素、第二子像素和第三子像素，当子像素的颜色由色坐标表征时，所述第一子像素对应的第j取代比例R Wj1，所述第二子像素对应的第j取代比例R Wj2，所述第三子像素对应的第j取代比例R Wj3，满足：
Figure PCTCN2019082770-appb-000005
Figure PCTCN2019082770-appb-000006
Figure PCTCN2019082770-appb-000007
其中，所述j为1或2，所述第一子像素的初始颜色的色坐标为(B X，B Y)，所述第二子像素的初始颜色的色坐标为(G X，G Y)，所述第三子像素的初始颜色的色坐标为(R X，R Y)，所述第一初始颜色的色坐标为(W 1X，W 1Y)，所述目标颜色的色坐标为(W 2X，W 2Y)，且所述R Z＝1-R X-R Y，G Z＝1-G X-G Y，B Z＝1-B X-B Y， W 1Z＝1-W 1X-W 1Y，W 2Z＝1-W 2X-W 2Y。
可选地，当子像素的颜色由色坐标表征时，所述第二确定子模块，用于：
获取所述第一初始颜色的色坐标和所述目标颜色的色坐标在色坐标系中的相对位置；
基于所述相对位置，确定导致所述第一初始颜色偏离所述目标颜色的主导颜色分量，所述主导颜色分量为导致所述第一初始颜色偏离所述目标颜色的颜色分量中占比最大的颜色分量；
将发光颜色为所述主导颜色分量的子像素的第一取代比例，确定为所述第一补色系数；
将发光颜色为所述主导颜色分量的子像素的第二取代比例，确定为所述第二补色系数。
可选地，所述至少两个显示子像素包括第一子像素、第二子像素和第三子像素，所述第二确定子模块，用于：
当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1Y≥W 2Y时，将所述第二子像素的发光颜色确定为所述主导颜色分量；
当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1X≥W 2X且W 1Y<W 2Y时，将所述第三子像素的发光颜色确定为所述主导颜色分量；
当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1X<W 2X且W 1Y<W 2Y时，将所述第一子像素的发光颜色确定为所述主导颜色分量。
再一方面，提供了一种显示装置，所述显示装置包括：色度补偿装置，所述色度补偿装置包括：
第一获取模块，用于获取目标像素单元中显示子像素在目标亮度下的初始颜色，及所述目标像素单元在所述目标亮度下的目标颜色，所述目标像素单元包括：发光颜色不同的至少两个显示子像素；
第二获取模块，用于基于所述目标颜色和每个显示子像素的初始颜色，在所述目标亮度下，分别获取每个显示子像素的补色增益；
补偿模块，用于基于每个显示子像素在所述目标亮度下的补色增益，对所述目标像素单元的色度进行补偿；
其中，任一显示子像素在所述目标亮度下的补色增益用于表征在所述目标亮度下，将所述目标像素单元的颜色由初始颜色补偿至所述目标颜色时，需要对所述任一显示子像素进行补偿的程度。
又一方面，提供了一种色度补偿设备，所述色度补偿设备包括：
处理器；和
存储器；
所述存储器存储有至少一个程序，所述至少一个程序被配置成由所述处理器执行，所述至少一个程序被处理器执行时能够实现上述方面任一所述的色度补偿方法。
又一方面，提供了一种存储介质，所述存储介质中存储有计算机程序，存储的所述计算机程序被处理器执行时能够实现上述方面任一所述的色度补偿方法。
附图说明
为了更清楚地说明本公开实施例中的技术方案，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，下面描述中的附图仅仅是本公开的一些实施例，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。
图1是本公开实施例提供的一种色度补偿方法的流程图；
图2是本公开实施例提供的另一种色度补偿方法的流程图；
图3是本公开实施例提供的一种分别获取每个显示子像素的补色增益的方法流程图；
图4是本公开实施例提供的一种R子像素、G子像素、B子像素和W子像素的色坐标示意图；
图5是本公开实施例提供的一种W子像素的X轴色坐标随亮度变化的示意图；
图6是本公开实施例提供的一种W子像素的Y轴色坐标随亮度变化的示意图；
图7是本公开实施例提供的一种确定该第一补色系数和第二补色系数的方法流程图；
图8是本公开实施例提供的一种B子像素在不同亮度下对应的补色增益的 示意图；
图9是本公开实施例提供的一种G子像素在不同亮度下对应的补色增益的示意图；
图10是本公开实施例提供的一种R子像素在不同亮度下对应的补色增益的示意图；
图11是本公开实施例提供的一种基于目标颜色和任一显示子像素的初始颜色，查询任一显示子像素的亮度与补色增益的对应关系，以确定任一显示子像素在目标亮度下的补色增益的方法流程图；
图12是本公开实施例提供的一种色度补偿装置的结构示意图；
图13是本公开实施例提供的另一种色度补偿装置的结构示意图；
图14是本公开实施例提供的一种第二获取模块的结构示意图；
图15是本公开实施例提供的一种显示装置的结构示意图；
图16是本公开实施例提供的一种时序控制器的结构示意图；
图17是本公开实施例提供的一种像素单元的结构示意图。
具体实施方式
为使本公开的原理和优点更加清楚，下面将结合附图对本公开实施方式作进一步地详细描述。
通常地，在RGBW OLED显示装置中，W子像素的颜色是基于色度学原理，根据R子像素的颜色、G子像素的颜色和G子像素的颜色确定的，且显示面板所呈现的颜色为R子像素所显示颜色、G子像素所显示颜色和B子像素所显示颜色经混合后颜色。但是，在不同应用场景中，对显示面板最终呈现的颜色有不同的要求。因此，还需要根据不同应用场景的需求，对显示面板中像素单元进行色度补偿，使得显示面板呈现的颜色满足对应的应用场景，以提高显示面板的显示灵活性。
本公开实施例提供了一种色度补偿方法，该方法用于对显示面板中的像素单元进行色度补偿。其中，显示面板包括多个像素单元，每个像素单元包括至少两个颜色不同的显示子像素。如图1所示，该方法可以包括：
步骤101、获取目标像素单元中显示子像素在目标亮度下的初始颜色，及目标像素单元在目标亮度下的目标颜色。
其中，目标像素单元包括：发光颜色不同的至少两个显示子像素。该目标颜色为在对目标像素单元进行色度补偿后，该目标像素单元应呈现的颜色。可选地，该目标颜色可以为根据应用场景的需求所确定的目标像素单元需要呈现的颜色。
步骤102、基于目标颜色和每个显示子像素的初始颜色，在目标亮度下，分别获取每个显示子像素的补色增益。
步骤103、基于每个显示子像素在目标亮度下的补色增益，对目标像素单元的色度进行补偿。
其中，任一显示子像素在目标亮度下的补色增益用于表征在目标亮度下，将目标像素单元的颜色由初始颜色补偿至目标颜色时，需要对任一显示子像素进行补偿的程度。
综上所述，本公开实施例提供的色度补偿方法，通过基于目标颜色和每个显示子像素的初始颜色，分别获取每个显示子像素在目标亮度下的补色增益，并基于该补色增益对目标像素单元的色度进行补偿，能够根据不同应用场合对显示面板所显示的颜色进行补偿，使得显示面板呈现的颜色满足不同的应用场景，进而提高了显示面板的显示灵活性，使得显示面板能够适用于各种应用场景。
可选地，可以在显示面板的显示过程中，实时获取每个显示子像素的补色增益，并根据该补色增益对目标像素单元进行色度补偿。或者，也可以预先建立显示子像素的亮度与补色增益的对应关系，并在需要获取显示子像素的补色增益时，查询该对应关系，以得到该显示子像素的补色增益。下面以预先建立对应关系，并查询该对应关系，以得到显示子像素的补色增益为例，对本公开实施例提供的色度补偿方法进行说明。如图2所示，该方法可以包括：
步骤201、基于目标颜色和每个显示子像素的初始颜色，在多个参考亮度下，分别获取每个显示子像素的补色增益。
其中，显示面板包括多个像素单元，每个像素单元包括至少两个显示子像素。在一种可实现方式中，可以获取该多个像素单元中全部或部分像素单元的补色增益，并建立亮度与补色增益的对应关系，以便在后续显示面板的使用过程中，根据该对应关系获取显示子像素在目标亮度下的补色增益，进而根据该补色增益实现对显示面板的色度补偿。为便于描述，该需要获取补色增益的显 示子像素所在的像素单元可称为参考像素单元。例如：当对应关系记载有该显示面板中所有像素单元中不同颜色的显示子像素，在不同亮度下与补色增益的对应关系时，需要获取显示面板中所有像素单元中显示子像素的补色增益，则该参考像素单元为显示面板中所有像素单元中的任一像素单元。且该参考像素单元可以为后续色度补偿过程中需要进行色度补偿的目标像素单元，也可以不是该目标像素单元，本公开实施例对其不做具体限定。
可选地，请参考图3，基于目标颜色和每个显示子像素的初始颜色，在多个参考亮度下，分别获取每个显示子像素的补色增益的实现方式可以包括以下步骤。其中，该第一亮度为多个参考亮度中的任意一个。
步骤2011、在第一亮度下，基于至少两个显示子像素的初始颜色，确定目标像素单元的第一初始颜色。
其中，各显示子像素的初始颜色可以为在显示装置的存储器中存储的颜色。且该初始颜色可以是在显示面板的显示过程中，通过光学仪器测量得到并存储在该存储器中的。并且，由于像素单元的颜色由该像素单元中各个显示子像素的颜色进行混合后得到，因此，基于色度学原理，根据每个显示子像素的初始颜色，可以确定参考像素单元的第一初始颜色。
示例地，假设至少两个显示子像素包括：R子像素、G子像素和B子像素，请参考图4，当颜色由色坐标表征时，根据每个显示子像素的初始颜色确定的色坐标在色坐标系中的位置如图4所示，且基于色度学原理，根据该R子像素、该G子像素和该B子像素的初始颜色，可以确定参考像素单元的第一初始颜色，该第一初始颜色所对应的色坐标位置如图4中W所示，从图4可以看出：该参考像素单元的色坐标的位置位于该R子像素、G子像素和B子像素的色坐标所围成的三角形的内部。
并且，亮度会影响色坐标，当亮度发生变化且颜色的其他分量不变时，色坐标会随之发生变化。示例地，图5和图6分别为像素单元的X轴色坐标和Y轴色坐标随亮度变化的示意图，从图5和图6可以看出：在不同亮度下像素单元的色坐标不同，且x轴色坐标和y轴色坐标随亮度变化的情况不同。因此，需要根据不同亮度确定每个显示子像素的补色增益。
步骤2012、基于第一初始颜色和至少两个显示子像素的初始颜色，分别获取每个显示子像素的初始颜色相对于第一初始颜色的第一取代比例。
其中，第一取代比例为每个显示子像素的初始颜色在第一初始颜色中所占 的比例。
可选地，参考像素单元中的至少两个显示子像素可以包括第一子像素、第二子像素和第三子像素，例如：第一子像素可以为B子像素，第二子像素可以为G子像素，第三子像素可以为R子像素，当子像素的颜色由色坐标表征时，第一子像素对应的第一取代比例R W1B，第二子像素对应的第一取代比例R W1G，第三子像素对应的第一取代比例R W1R，满足：
Figure PCTCN2019082770-appb-000008
Figure PCTCN2019082770-appb-000009
Figure PCTCN2019082770-appb-000010
其中，第一子像素的初始颜色的色坐标为(B X，B Y)，第二子像素的初始颜色的色坐标为(G X，G Y)，第三子像素的初始颜色的色坐标为(R X，R Y)，第一初始颜色的色坐标为(W 1X，W 1Y)，目标颜色的色坐标为(W 2X，W 2Y)，且R Z＝1-R X-R Y，G Z＝1-G X-G Y，B Z＝1-B X-B Y，W 1Z＝1-W 1X-W 1Y。
步骤2013、基于目标颜色和至少两个显示子像素的初始颜色，分别获取每个显示子像素的初始颜色相对于目标颜色的第二取代比例。
其中，第二取代比例为每个显示子像素的初始颜色在目标颜色中所占的比例，目标颜色为在每个显示子像素的颜色均为各自的初始颜色时，对参考像素单元进行色度补偿后，该参考像素单元应呈现的颜色。例如：该目标颜色可以为在每个显示子像素的颜色均为各自的初始颜色时，某应用场景所要求的参考像素单元最终需要呈现的颜色。示例地，当显示面板中每个像素单元中显示子像素的颜色均为各自的初始颜色时，显示面板在常规显示时应呈现为标准白色，但按照应用场景需求，该显示面板所呈现的目标颜色应为白色偏红的显示效果。并且，该步骤2013的实现过程可以相应参考步骤2012，此处不再赘述。
步骤2014、基于第一取代比例和第二取代比例，分别确定第一初始颜色在第一亮度下的第一补色系数，以及目标颜色在第一亮度下的第二补色系数。
其中，第一补色系数用于表征在获取第一初始颜色时需要进行色度补偿的程度，第二补色系数用于表征在获取目标颜色时需要进行色度补偿的程度。在 RGBW OLED显示装置的常规显示过程中，由于向每个像素单元提供的用于驱动其进行显示的信号，均是由R初始信号、G初始信号和B初始信号转换为R信号、G信号、B信号和W信号后，再提供至对应子像素的。因此，该第一补色系数可视为在常规显示的转换过程中，根据初始信号进行转换，以得到使像素单元呈现第一初始颜色的信号时，需要对初始信号进行补偿的程度。第二补色系数可视为在常规显示的基础上，在转换过程中根据初始信号进行转换，以得到使像素单元呈现目标颜色的信号时，需要对初始信号进行补偿的程度。
可选地，可以根据第一初始颜色的色坐标和目标颜色的色坐标的相对位置确定该第一补色系数和该第二补色系数。例如，当子像素的颜色由色坐标表征时，如图7所示，其实现方式可以包括：
步骤2014a1、获取第一初始颜色的色坐标和目标颜色的色坐标在色坐标系中的相对位置。
该色坐标系可以为按照国际照明委员会制定的色度学标准CIE1931建立的色坐标系。在确定第一初始颜色的色坐标在色坐标系中的位置，及目标颜色的色坐标在色坐标系中的位置后，即可确定两者的相对位置。该相对位置至少可以表示为以下三种，第一种：W 1Y≥W 2Y，第二种：W 1X≥W 2X且W 1Y<W 2Y，第三种：W 1X<W 2X且W 1Y<W 2Y，其中，(W 1X，W 1Y)为第一初始颜色的色坐标，(W 2X，W 2Y)为目标颜色的色坐标。
步骤2014a2、基于相对位置，确定导致第一初始颜色偏离目标颜色的主导颜色分量。
其中，主导颜色分量为导致第一初始颜色偏离目标颜色的颜色分量中占比最大的颜色分量；例如，当第一初始颜色相对于目标颜色更偏向于红色时，该主导颜色分量可以为红色。或者，如图4所示，当第一初始颜色相对于目标颜色既偏向于蓝色又偏向于红色，且偏向于蓝色的程度大于偏向于红色的程度时，该主导颜色分量可以为蓝色。
示例地，每个像素单元可以包括第一子像素、第二子像素和第三子像素，当子像素的颜色由色坐标表征时，基于相对位置，确定导致第一初始颜色偏离目标颜色的主导颜色分量的实现过程，可以包括：当第一初始颜色的色坐标(W 1X，W 1Y)与目标颜色的色坐标(W 2X，W 2Y)满足：W 1Y≥W 2Y时，将第二子像素的发光颜色确定为主导颜色分量。当第一初始颜色的色坐标(W 1X，W 1Y)与目标颜色的色坐标(W 2X，W 2Y)满足：W 1X≥W 2X且W 1Y<W 2Y时，将第三子 像素的发光颜色确定为主导颜色分量。当第一初始颜色的色坐标(W 1X，W 1Y)与目标颜色的色坐标(W 2X，W 2Y)满足：W 1X<W 2X且W 1Y<W 2Y时，将第一子像素的发光颜色确定为主导颜色分量。
步骤2014a3、将发光颜色为主导颜色分量的子像素的第一取代比例，确定为第一补色系数，将发光颜色为主导颜色分量的子像素的第二取代比例，确定为第二补色系数。
在确定导致第一初始颜色偏离目标颜色的主导颜色分量后，在转换过程中根据初始信号进行转换，以得到使像素单元呈现为第一初始颜色的信号时，则可以按照该主导颜色分量对应的第一取代比例对初始信号进行色度补偿。以及，在转换过程中根据初始信号进行转换，以得到使像素单元呈现为目标颜色的信号时，则可以按照该主导颜色分量对应的第二取代比例对初始信号进行色度补偿。因此，可以将发光颜色为主导颜色分量的子像素的第一取代比例，确定为第一补色系数，将发光颜色为主导颜色分量的子像素的第二取代比例，确定为第二补色系数。
也即是，当第一初始颜色的色坐标(W 1X，W 1Y)与第一目标颜色的色坐标(W 2X，W 2Y)满足：W 1Y≥W 2Y时，可以将第二子像素对应的第一取代比例R W12确定为第一补色系数R W1，将第二子像素对应的第二取代比例R W22确定为第二补色系数R W2，即R W1＝R W12，R W2＝R W22。
当第一初始颜色的色坐标(W 1X，W 1Y)与第一目标颜色的色坐标(W 2X，W 2Y)满足：W 1X≥W 2X且W 1Y<W 2Y时，可以将第三子像素对应的第一取代比例R W13确定为第一补色系数R W1，将第三子像素对应的第二取代比例R W23确定为第二补色系数R W2，即R W1＝R W13，R W2＝R W23。
当第一初始颜色的色坐标(W 1X，W 1Y)与第一目标颜色的色坐标(W 2X，W 2Y)满足：W 1X<W 2X且W 1Y<W 2Y时，可以将第一子像素对应的第一取代比例R W11确定为第一补色系数R W1，将第一子像素对应的第二取代比例R W21确定为第二补色系数R W2，即R W1＝R W11，R W2＝R W21。
步骤2015、基于第一补色系数和第二补色系数确定每个显示子像素在第一亮度下的补色增益。
可选地，第一补色系数R W1、第二补色系数R W2和第i子像素在第一亮度下的补色增益Gi，满足：
Figure PCTCN2019082770-appb-000011
其中，R W2i为第i子像素对应的第二取代比例，R W1i为第i子像素对应的第一取代比例，n为向子像素提供的驱动输出信号的位数，该驱动输出信号用于驱动子像素发光。
示例地，假设向每个显示子像素提供的驱动输出信号均为8比特位的信号，则该n＝8，该每个显示子像素的亮度可以通过[0，255]之间的灰度值进行表示，相应的，第一子像素对应的补色增益G 1、第二子像素对应的补色增益G 2和第三子像素对应的补色增益G 3分别为：
Figure PCTCN2019082770-appb-000012
Figure PCTCN2019082770-appb-000013
Figure PCTCN2019082770-appb-000014
步骤202、在目标颜色和每个显示子像素的初始颜色下，建立每个显示子像素的亮度与补色增益的对应关系。
对显示面板中的所有参考像素单元均执行步骤201后，即可获取在目标颜色和每个显示子像素在各自初始颜色下，每个显示子像素在不同参考亮度下的补色增益，根据其将显示子像素、补色增益和亮度进行一一对应，即可得到记载有每个显示子像素的亮度与补色增益的对应关系。可选地，该对应关系的表示形式可以有多种，例如：可以采用表格表示该对应关系，也可以采用曲线表示该对应关系，并且，任一显示子像素对应的曲线可以为根据该任一显示子像素在多个参考亮度下的补色增益进行曲线拟合得到的。例如，可以在显示子像素能够显示的亮度范围内选择多个参考亮度，并分别获取显示子像素在每个参考亮度下对应的补色增益，并以每个参考亮度与对应的补色增益组成一个特征 点为基础，通过二次曲线拟合方法对多个特征点进行曲线拟合，以得到用于表征该显示子像素的亮度与补色增益的对应关系的曲线。
其中，每个显示子像素可以对应多组对应关系，每组对应关系用于表示基于该显示子像素的一个初始颜色，将该显示子像素所在的参考像素单元补偿至目标颜色时，亮度与补偿增益的对应关系。
示例地，假设第一子像素为B子像素，第二子像素为G子像素，第三子像素为R像素，当亮度与补色增益的对应关系由曲线表征时，该B子像素在不同亮度下对应的补色增益请参考图8。该图8的曲线用于表征基于该B子像素的一个初始颜色，将该B子像素所在的参考像素单元补偿至目标颜色时，亮度与补偿增益的对应关系。该G子像素在不同亮度下对应的补色增益请参考图9，该图9的曲线用于表征基于该G子像素的一个初始颜色，将该G子像素所在的参考像素单元补偿至目标颜色时，亮度与补偿增益的对应关系。该R子像素在不同亮度下对应的补色增益请参考图10，该图10的曲线用于表征基于该R子像素的一个初始颜色，将该R子像素所在的参考像素单元补偿至目标颜色时，亮度与补偿增益的对应关系。并且，根据该图8、图9和图10可以看出，不同子像素在不同亮度下与补色增益的对应关系呈现为不同的变化趋势。
步骤203、获取目标像素单元中显示子像素在目标亮度下的初始颜色，及目标像素单元在目标亮度下的目标颜色。
目标像素单元与参考像素单元可以为同一显示面板中的像素单元。由于同一显示面板中的像素单元具有基本相同的显示特性，因此，当根据该参考像素单元获取的对应关系对目标像素单元进行色度补偿时，能够保证补偿的准确性。
当目标像素单元中的至少两个显示子像素的颜色为各自的初始颜色时，可以在应用需求的指示下，确定该目标像素单元的目标颜色。其中，根据应用需求的指示，当目标像素单元中各个显示子像素为各自的初始颜色时，目标像素单元的目标颜色可以为一指定颜色。该显示子像素的初始颜色可以根据需要显示的画面确定。且显示子像素的初始颜色及其对应的目标像素单元的目标颜色可以均存储在显示装置的存储器中。在显示过程中，可以通过读取该存储器中存储的数据，以得到该初始颜色和该目标颜色。
步骤204、基于目标颜色和每个显示子像素的初始颜色，分别获取每个显示子像素在目标亮度下的补色增益。
可选地，可以基于目标颜色和任一显示子像素的初始颜色，查询任一显示 子像素的亮度与补色增益的对应关系，以确定任一显示子像素在目标亮度下的补色增益。该对应关系中记载有任一显示子像素在初始颜色和不同亮度下，将目标像素单元补偿至目标颜色的补色增益。示例地，请参考图11，其实现过程可以包括：
步骤2041、根据目标亮度查询对应关系。
该对应关系中可记载有显示子像素在多个参考亮度下所对应的补色增益，也即是，该对比关系中可能没有记载显示子像素在所有亮度下的补色增益，因此，在获取显示子像素在目标亮度下对应的补色增益时，可以先根据目标亮度查询该对应关系，以确定该对应关系中是否记载有该目标亮度，且当对应关系中记载有该目标亮度时，执行步骤2042；当对应关系中未记载有该目标亮度时，执行步骤2043。
步骤2042、当对应关系中记载有目标亮度时，将目标亮度对应的补色增益确定为任一显示子像素在目标亮度下的补色增益。
当对应关系中记载有目标亮度时，可以根据该目标亮度查询该对应关系，并将该目标亮度下显示子像素对应的补色增益分别确定为该任一显示子像素在目标亮度下的补色增益(为便于描述，下文简称为目标补色增益)。
示例地，假设目标亮度为100尼特(nits)，多个参考亮度分别为：LW1＝25nits，LW2＝50nits，LW3＝75nits，LW4＝100nits，LW5＝125nits，LW6＝150nits，LW7＝175nits，图8、图9和图10所示的对应关系中记载有目标像素单元中每个显示子像素在该多个参考亮度下所对应的补色增益，可知该对应关系中记载有该目标亮度对应的目标补色增益，根据该目标亮度分别查询图8、图9和图10所示的对应关系可得：B子像素在该目标亮度下对应的补色增益为86，G子像素在该目标亮度下对应的补色增益为0，R子像素在该目标亮度下对应的补色增益为41，则可将86确定为B子像素在该目标亮度下的目标补色增益，将0确定为G子像素在该目标亮度下的目标补色增益，将41确定为R子像素在该目标亮度下的目标补色增益。
步骤2043、当对应关系中未记载有目标亮度时，在对应关系中记载的多个亮度中确定第一待选亮度和第二待选亮度，第一待选亮度为多个亮度中小于目标亮度，且与目标亮度的亮度之差最小的亮度，第二待选亮度为多个亮度中大于目标亮度，且与目标亮度的亮度之差最小的亮度。
本公开实施例中，可将多个参考亮度中除最小亮度和最大亮度之外的亮度 作为划分点，将以最小亮度和最大亮度为端点的亮度范围划分为多个亮度区间，此时，当对应关系中未记载有目标亮度时，可以先确定该目标亮度所处的目标亮度区间，然后根据位于该目标亮度区间端点的两个参考亮度所对应的补色增益，确定该目标亮度对应的补色增益，即执行步骤2064，该位于该目标亮度区间端点的两个参考亮度分别为第一待选亮度和第二待选亮度。
示例地，假设多个参考亮度分别为：LW1＝25nits，LW2＝50nits，LW3＝75nits，LW4＝100nits，LW5＝125nits，LW6＝150nits，LW7＝175nits，将LW2、LW3、LW4、LW5和LW6作为划分点，可将亮度范围[25nits，175nits]划分为6个亮度区间，该6个亮度区间分别为[25nits，50nits)、[50nits，75nits)、[75nits，100nits)、[100nits，125nits)，[125nits，150nits)和[150nits，175nits]，当目标亮度为40nits时，可以确定该目标亮度所处的目标亮度区间为[25nits，50nits)，然后可将25nits确定为第一待选亮度，将50nits确定为第二待选亮度。
步骤2044、基于目标亮度、第一待选亮度、第二待选亮度、第一待选亮度对应的补色增益和第二待选亮度对应的补色增益，根据线性插值法确定任一显示子像素在目标亮度下的补色增益。
在确定第一待选亮度和第二待选亮度后，可以根据该第一待选亮度和第二待选亮度，基于线性插值法确定任一显示子像素在目标亮度下所对应的目标补色增益。
在一种实现方式中，假设目标亮度为L1，第一待选亮度为L2，第二待选亮度为L3，显示子像素i在第一待选亮度下所对应的补色增益为G i1，显示子像素i在第二待选亮度下所对应的补色增益为G i2，则可以按照线性插值公式确定显示子像素i在目标亮度下所对应的目标补色增益G iL1，该线性插值公式为：
Figure PCTCN2019082770-appb-000015
示例地，假设目标亮度为40nits，根据图8、图9和图10所示的对应关系可以确定第一待选亮度为25nits，第二待选亮度为50nits，第一子像素、第二子像素和第三子像素在第一待选亮度下所对应的补色增益分别为95、0和55，第一子像素、第二子像素和第三子像素在第二待选亮度下所对应的补色增益分别为91、0和47，根据线性插值公式可以确定第一子像素、第二子像素和第三子像素在目标亮度下所对应的目标补色增益分别为92.6、0和50.2。
需要说明的是，当在显示面板的显示过程中，实时计算每个显示子像素在目标亮度下的补色增益的实现过程可以相应参考步骤2011至步骤2015，此时， 步骤2011至步骤2015中的第一亮度为该目标亮度。相应的，由于在实时计算补色增益的过程中无需使用上述亮度与补色增益的对应关系，可以选择不执行上述步骤201至步骤202。
步骤205、基于任一显示子像素在目标亮度下的补色增益，确定向该任一显示子像素提供的驱动输出信号，并向该任一显示子像素提供该驱动输出信号，以供基于该驱动输出信号对目标像素单元的色度进行补偿。
由于每个显示子像素的颜色均为在白色发光子像素上添加滤光片得到，因此，在确定显示子像素的目标补色增益后，可以根据该目标补色增益改变显示子像素中白色发光子像素的发光亮度，使得该显示子像素的颜色发生改变，进而使得该目标像素单元的发光颜色发生改变，实现对该目标像素单元的色度补偿。也即是，可以根据目标补色增益确定该任一显示子像素的目标输出亮度，并根据该任一显示子像素的目标输出亮度，确定用于驱动该任一显示子像素达到该目标输出亮度所需的数据信号(Data信号)，并将该数据信号发送至源极驱动器，以供源极驱动器根据该数据信号生成对应的驱动输出信号，并向该任一显示子像素提供该驱动输出信号，采用该驱动输出信号向对应的子像素充电，以驱动对应的子像素进行显示，进而实现对目标像素单元的色度补偿。
可选地，根据该目标补色增益确定任一显示子像素的目标输出亮度的实现方式可以包括：基于该目标补色增益确定亮度增益，将该任一显示子像素的原始亮度与亮度增益之和更新为对应的目标输出亮度，且保持目标像素单元中白色子像素的亮度不变，其中，该任一显示子像素的亮度增益可以根据目标像素单元所能显示的最大灰度值和目标亮度确定。例如，亮度增益M、目标亮度L、目标补色增益G和最大灰度值Q满足：M＝(G/Q)×L。
综上所述，本公开实施例提供的色度补偿方法，通过基于目标颜色和每个显示子像素的初始颜色，分别获取每个显示子像素在目标亮度下的补色增益，并基于该补色增益对目标像素单元的色度进行补偿，能够根据不同应用场合对显示面板所显示的颜色进行补偿，使得显示面板呈现的颜色满足不同的应用场景，进而提高了显示面板的显示灵活性，使得显示面板能够适用于各种应用场景。
本公开实施例提供了一种色度补偿装置，如图12所示，装置700可以包括：
第一获取模块701，用于获取目标像素单元中显示子像素在目标亮度下的初 始颜色，及目标像素单元在目标亮度下的目标颜色，目标像素单元包括：发光颜色不同的至少两个显示子像素。
第二获取模块702，用于基于目标颜色和每个显示子像素的初始颜色，在目标亮度下，分别获取每个显示子像素的补色增益。
补偿模块703，用于基于每个显示子像素在目标亮度下的补色增益，对目标像素单元的色度进行补偿。
其中，任一显示子像素在目标亮度下的补色增益用于表征在目标亮度下，将目标像素单元的颜色由初始颜色补偿至目标颜色时，需要对任一显示子像素进行补偿的程度。
综上所述，本公开实施例提供的色度补偿装置，通过第二获取模块基于目标颜色和每个显示子像素的初始颜色，分别获取每个显示子像素在目标亮度下的补色增益，补偿模块基于该补色增益对目标像素单元的色度进行补偿，能够根据不同应用场合对显示面板所显示的颜色进行补偿，使得显示面板呈现的颜色满足不同的应用场景，进而提高了显示面板的显示灵活性，使得显示面板能够适用于各种应用场景。
可选地，第二获取模块702，用于基于目标颜色和任一显示子像素的初始颜色，查询任一显示子像素的亮度与补色增益的对应关系，确定任一显示子像素在目标亮度下的补色增益，对应关系中记载有任一显示子像素在初始颜色和不同亮度下，将目标像素单元补偿至目标颜色的补色增益。
可选地，第二获取模块702，还用于基于目标颜色和每个显示子像素的初始颜色，在多个参考亮度下，分别获取每个显示子像素的补色增益。
相应的，如图13所示，装置700还可以包括：建立模块704，用于在目标颜色和每个显示子像素的初始颜色下，建立每个显示子像素的亮度与补色增益的对应关系。
可选地，如图14所示，第二获取模块702，可以包括：
第一确定子模块7021，用于在第一亮度下，基于至少两个显示子像素的初始颜色，确定目标像素单元的第一初始颜色，第一亮度为目标亮度或多个参考亮度中的任意一个。
第一获取子模块7022，用于基于第一初始颜色和至少两个显示子像素的初始颜色，分别获取每个显示子像素的初始颜色相对于第一初始颜色的第一取代比例，第一取代比例为每个显示子像素的初始颜色在第一初始颜色中所占的比 例。
第二获取子模块7023，用于基于目标颜色和至少两个显示子像素的初始颜色，分别获取每个显示子像素的初始颜色相对于目标颜色的第二取代比例，第二取代比例为每个显示子像素的初始颜色在目标颜色中所占的比例。
第二确定子模块7024，用于基于第一取代比例和第二取代比例，分别确定第一初始颜色在第一亮度下的第一补色系数，以及目标颜色在第一亮度下的第二补色系数，其中，第一补色系数用于表征在获取第一初始颜色时需要进行色度补偿的程度，第二补色系数用于表征在获取目标颜色时需要进行色度补偿的程度。
第三确定子模块7025，用于基于第一补色系数和第二补色系数确定每个显示子像素在第一亮度下补色增益。
可选地，至少两个显示子像素可以包括第一子像素、第二子像素和第三子像素，当子像素的颜色由色坐标表征时，第一子像素对应的第j取代比例R Wj1，第二子像素对应的第j取代比例R Wj2，第三子像素对应的第j取代比例R Wj3，满足：
Figure PCTCN2019082770-appb-000016
Figure PCTCN2019082770-appb-000017
Figure PCTCN2019082770-appb-000018
其中，j为1或2，第一子像素的初始颜色的色坐标为(B X，B Y)，第二子像素的初始颜色的色坐标为(G X，G Y)，第三子像素的初始颜色的色坐标为(R X，R Y)，第一初始颜色的色坐标为(W 1X，W 1Y)，第一目标颜色的色坐标为(W 2X，W 2Y)，且R Z＝1-R X-R Y，G Z＝1-G X-G Y，B Z＝1-B X-B Y，W 1Z＝1-W 1X-W 1Y，W 2Z＝1-W 2X-W 2Y。
可选地，当子像素的颜色由色坐标表征时，第二确定子模块7024，用于：
获取第一初始颜色的色坐标和目标颜色的色坐标在色坐标系中的相对位置；
基于相对位置，确定导致第一初始颜色偏离目标颜色的主导颜色分量，主导颜色分量为导致第一初始颜色偏离目标颜色的颜色分量中占比最大的颜色分量；
将发光颜色为主导颜色分量的子像素的第一取代比例，确定为第一补色系数；
将发光颜色为主导颜色分量的子像素的第二取代比例，确定为第二补色系数。
可选地，至少两个显示子像素可以包括第一子像素、第二子像素和第三子像素，第二确定子模块7024，用于：
当第一初始颜色的色坐标(W 1X，W 1Y)与第一目标颜色的色坐标(W 2X，W 2Y)满足：W 1Y≥W 2Y时，将第二子像素的发光颜色确定为主导颜色分量。
当第一初始颜色的色坐标(W 1X，W 1Y)与第一目标颜色的色坐标(W 2X，W 2Y)满足：W 1X≥W 2X且W 1Y<W 2Y时，将第三子像素的发光颜色确定为主导颜色分量。
当第一初始颜色的色坐标(W 1X，W 1Y)与第一目标颜色的色坐标(W 2X，W 2Y)满足：W 1X<W 2X且W 1Y<W 2Y时，将第一子像素的发光颜色确定为主导颜色分量。
可选地，第一补色系数R W1、第二补色系数R W2和第i子像素在第一亮度下的补色增益G i，满足：
Figure PCTCN2019082770-appb-000019
其中，R W2i为第i子像素对应的第二取代比例，R W1i为第i子像素对应的第一取代比例，n为向子像素提供的驱动输出信号的位数，驱动输出信号用于驱动子像素发光。
可选地，第二获取模块702用于：
根据目标亮度查询对应关系。
当对应关系中记载有目标亮度时，将目标亮度对应的补色增益确定为补色增益。
当对应关系中未记载有目标亮度时，在对应关系中记载的多个亮度中确定第一待选亮度和第二待选亮度，第一待选亮度为多个亮度中小于目标亮度，且 与目标亮度的亮度之差最小的亮度，第二待选亮度为多个亮度中大于目标亮度，且与目标亮度的亮度之差最小的亮度。
基于目标亮度、第一待选亮度、第二待选亮度、第一待选亮度对应的补色增益和第二待选亮度对应的补色增益，根据线性插值法确定补色增益。
可选地，补偿模块703用于：
基于任一显示子像素在目标亮度下的补色增益，确定向任一显示子像素提供的驱动输出信号，驱动输出信号用于驱动子像素发光；
向任一显示子像素提供驱动输出信号，以供对目标像素单元的色度进行补偿。
综上所述，本公开实施例提供的色度补偿装置，通过第二获取模块基于目标颜色和每个显示子像素的初始颜色，分别获取每个显示子像素在目标亮度下的补色增益，补偿模块基于该补色增益对目标像素单元的色度进行补偿，能够根据不同应用场合对显示面板所显示的颜色进行补偿，使得显示面板呈现的颜色满足不同的应用场景，进而提高了显示面板的显示灵活性，使得显示面板能够适用于各种应用场景。
本公开实施例提供了一种显示装置，该显示装置包括：显示面板和本公开实施例提供的色度补偿装置。该显示装置可以为：液晶面板、电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。示例地，该显示装置可以为OLED显示装置。
可选地，请参考图15，该显示装置还可以包括：时序控制器，源极驱动器，栅极驱动器和数据存储器等组成。其中，本公开实施例提供的色度补偿装置可设置在时序控制器中，栅极驱动器与显示面板之间通过栅线(Gate Line，GL)连接，源极驱动器与显示面板之间通过数据线(Data Line，DL)连接，且显示面板上还加载有电源信号EL(例如：阳极信号和阴极信号)。
时序控制器用于读取数据存储器中存储的第一颜色数据(例如各个显示子像素的初始颜色或色坐标)，并接收外部输入的各个显示子像素的第二颜色数据，以及接收时序控制信号。例如，第二颜色数据可以为应用场景中需要R子像素、G子像素和B子像素显示的颜色的数据，或者，第二颜色数据可以为应用场景中需要目标像素单元显示的目标颜色的数据。时序控制器对各信号和数据进行计算、转换和补偿等处理后，可生成Data信号、源极控制信号(Source  Control Signal，SCS)和栅极控制信号(Gate Control Signal，GCS)，并将Data信号和SCS发送至源极驱动器，将GCS发送至栅极驱动器。
请参考图16，时序控制器包括：时序转换单元、亮度转换单元、算法补偿单元、色度补偿单元和数据转换单元。其中，色度补偿单元中设置有本公开实施例提供的色度补偿装置，并且，时序转换单元用于接收时序控制信号，并生成SCS和GCS；亮度转换单元用于接收外部输入的各个显示子像素的第二颜色数据，将其转换为各个显示子像素的亮度信号，并将该亮度信号发送至算法补偿单元；算法补偿单元接收到亮度转换单元发送的亮度信号后，可根据RGB-RGBW算法、峰值亮度算法、驱动TFT特征值补偿、OLED特征值补偿和光学补偿等补偿算法对亮度信号进行补偿，并将补偿后的亮度信号发送至色度补偿单元；色度补偿单元可根据本公开实施例提供的色度补偿方法对不同像素单元、不同颜色和不同亮度的色坐标进行色度补偿，产生色度补偿后的亮度信号，并将该色度补偿后的亮度信号发送至数据转换单元；数据转换单元可将该亮度信号转换为灰阶数据信号(例如Data信号)，并将该灰阶数据信号发送至源极驱动器，源极驱动器根据该灰阶数据信号生成对应的驱动输出信号，并向显示子像素提供该驱动输出信号，以驱动像素单元进行显示。
数据存储器中存储有显示面板中不同像素、不同颜色和不同亮度下的色坐标数据，以及，不同驱动薄膜晶体管(Thin Film Transistor，TFT)的特征值(例如：TFT的阈值电压Vth和迁移率K等特征值)，并且，还存储有不同OLED器件的特征值(例如：OLED的阈值电压V oled)，同时，还存储有不同TFT特征值和不同OLED器件的光学补偿特征值等。
源极驱动器用于接收时序控制器输出的Data信号和SCS，根据其生成源极驱动电压，并通过数据线DL将该源极驱动电压发送至显示面板；栅极驱动器用于接收GCS，根据该GCS生成栅极驱动信号，并通过至少一条栅线GL将该栅极驱动信号发送至显示面板。
显示面板包括多个像素单元和驱动OLED发光的电源(例如：阳极电源ELVDD和阴极电源ELVSS)。请参考图17，每个像素单元包括：至少一条数据线DL、至少一条栅线GL、OLED器件、存储电容Cst、开关TFT T1、驱动TFT T2、阳极电源ELVDD和阴极电源ELVSS。
本公开实施例提供了一种色度补偿设备，该色度补偿设备包括：处理器和 存储器。该存储器存储有至少一个程序，至少一个程序被配置成由处理器执行，至少一个程序被处理器执行时能够实现本公开实施例提供的色度补偿方法。
本公开实施例提供了一种存储介质，该存储介质可以为非易失性存储介质，存储介质中存储有计算机程序，存储的计算机程序被处理器执行时能够实现本公开实施例提供的色度补偿方法。
需要说明的是，本公开中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
以上仅为本公开的较佳实施例，并不用以限制本公开，凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (20)

  1. 一种色度补偿方法，所述方法包括：
    获取目标像素单元中显示子像素在目标亮度下的初始颜色，及所述目标像素单元在所述目标亮度下的目标颜色，所述目标像素单元包括：发光颜色不同的至少两个显示子像素；
    基于所述目标颜色和每个显示子像素的初始颜色，在所述目标亮度下，分别获取每个显示子像素的补色增益；
    基于每个显示子像素在所述目标亮度下的补色增益，对所述目标像素单元的色度进行补偿；
    其中，任一显示子像素在所述目标亮度下的补色增益用于表征在所述目标亮度下，将所述目标像素单元的颜色由初始颜色补偿至所述目标颜色时，需要对所述任一显示子像素进行补偿的程度。
  2. 根据权利要求1所述的方法，其中，所述基于所述目标颜色和每个显示子像素的初始颜色，在所述目标亮度下，分别获取每个显示子像素的补色增益，包括：
    基于所述目标颜色和任一显示子像素的初始颜色，查询所述任一显示子像素的亮度与补色增益的对应关系，确定所述任一显示子像素在所述目标亮度下的补色增益，所述对应关系中记载有所述任一显示子像素在所述初始颜色和不同亮度下，将所述目标像素单元补偿至所述目标颜色的补色增益。
  3. 根据权利要求2所述的方法，其中，在所述基于所述目标颜色和任一显示子像素的初始颜色，查询所述任一显示子像素的亮度与补色增益的对应关系，确定所述任一显示子像素在所述目标亮度下的补色增益之前，所述方法还包括：
    基于所述目标颜色和每个显示子像素的初始颜色，在多个参考亮度下，分别获取每个显示子像素的补色增益；
    在所述目标颜色和每个显示子像素的初始颜色下，建立每个显示子像素的亮度与补色增益的对应关系。
  4. 根据权利要求1或3所述的方法，其中，所述分别获取每个显示子像素 的补色增益，包括：
    在第一亮度下，基于所述至少两个显示子像素的初始颜色，确定所述目标像素单元的第一初始颜色，所述第一亮度为所述目标亮度或所述多个参考亮度中的任意一个；
    基于所述第一初始颜色和所述至少两个显示子像素的初始颜色，分别获取每个显示子像素的初始颜色相对于所述第一初始颜色的第一取代比例，所述第一取代比例为每个显示子像素的初始颜色在所述第一初始颜色中所占的比例；
    基于所述目标颜色和所述至少两个显示子像素的初始颜色，分别获取所述每个显示子像素的初始颜色相对于所述目标颜色的第二取代比例，所述第二取代比例为每个显示子像素的初始颜色在所述目标颜色中所占的比例；
    基于第一取代比例和第二取代比例，分别确定所述第一初始颜色在所述第一亮度下的第一补色系数，以及所述目标颜色在所述第一亮度下的第二补色系数，所述第一补色系数用于表征在获取所述第一初始颜色时需要进行色度补偿的程度，所述第二补色系数用于表征在获取所述目标颜色时需要进行色度补偿的程度；
    基于所述第一补色系数和所述第二补色系数确定每个显示子像素在所述第一亮度下的补色增益。
  5. 根据权利要求4所述的方法，其中，所述至少两个显示子像素包括第一子像素、第二子像素和第三子像素，当子像素的颜色由色坐标表征时，所述第一子像素对应的第j取代比例R Wj1，所述第二子像素对应的第j取代比例R Wj2，所述第三子像素对应的第j取代比例R Wj3，满足：
    Figure PCTCN2019082770-appb-100001
    Figure PCTCN2019082770-appb-100002
    Figure PCTCN2019082770-appb-100003
    其中，所述j为1或2，所述第一子像素的初始颜色的色坐标为(B X，B Y)， 所述第二子像素的初始颜色的色坐标为(G X，G Y)，所述第三子像素的初始颜色的色坐标为(R X，R Y)，所述第一初始颜色的色坐标为(W 1X，W 1Y)，所述目标颜色的色坐标为(W 2X，W 2Y)，且所述R Z＝1-R X-R Y，G Z＝1-G X-G Y，B Z＝1-B X-B Y，W 1Z＝1-W 1X-W 1Y，W 2Z＝1-W 2X-W 2Y。
  6. 根据权利要求4或5所述的方法，其中，当子像素的颜色由色坐标表征时，所述基于第一取代比例和第二取代比例，分别确定所述第一初始颜色在所述第一亮度下的第一补色系数，以及所述目标颜色在所述第一亮度下的第二补色系数，包括：
    获取所述第一初始颜色的色坐标和所述目标颜色的色坐标在色坐标系中的相对位置；
    基于所述相对位置，确定导致所述第一初始颜色偏离所述目标颜色的主导颜色分量，所述主导颜色分量为导致所述第一初始颜色偏离所述目标颜色的颜色分量中占比最大的颜色分量；
    将发光颜色为所述主导颜色分量的子像素的第一取代比例，确定为所述第一补色系数；
    将发光颜色为所述主导颜色分量的子像素的第二取代比例，确定为所述第二补色系数。
  7. 根据权利要求6所述的方法，其中，所述至少两个显示子像素包括第一子像素、第二子像素和第三子像素，所述基于所述相对位置，确定导致所述第一初始颜色偏离所述目标颜色的主导颜色分量，包括：
    当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1Y≥W 2Y时，将所述第二子像素的发光颜色确定为所述主导颜色分量；
    当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1X≥W 2X且W 1Y<W 2Y时，将所述第三子像素的发光颜色确定为所述主导颜色分量；
    当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1X<W 2X且W 1Y<W 2Y时，将所述第一子像素的发光颜色确定为 所述主导颜色分量。
  8. 根据权利要求4至7任一所述的方法，其中，所述第一补色系数R W1、所述第二补色系数R W2和第i子像素在所述第一亮度下的补色增益G i，满足：
    Figure PCTCN2019082770-appb-100004
    其中，所述R W2i为所述第i子像素对应的第二取代比例，所述R W1i为所述第i子像素对应的第一取代比例，所述n为向子像素提供的驱动输出信号的位数，所述驱动输出信号用于驱动所述子像素发光。
  9. 根据权利要求2至8任一所述的方法，其中，所述基于所述目标颜色和任一显示子像素的初始颜色，查询所述任一显示子像素的亮度与补色增益的对应关系，确定所述任一显示子像素在所述目标亮度下的补色增益，包括：
    根据所述目标亮度查询所述对应关系；
    当所述对应关系中记载有所述目标亮度时，将所述目标亮度对应的补色增益确定为所述任一显示子像素在所述目标亮度下的补色增益；
    当所述对应关系中未记载有所述目标亮度时，在所述对应关系中记载的多个亮度中确定第一待选亮度和第二待选亮度，所述第一待选亮度为所述多个亮度中小于所述目标亮度，且与所述目标亮度的亮度之差最小的亮度，所述第二待选亮度为所述多个亮度中大于所述目标亮度，且与所述目标亮度的亮度之差最小的亮度；
    基于所述目标亮度、所述第一待选亮度、所述第二待选亮度、所述第一待选亮度对应的补色增益和所述第二待选亮度对应的补色增益，根据线性插值法确定所述任一显示子像素在所述目标亮度下的补色增益。
  10. 根据权利要求1至9任一所述的方法，其中，基于每个显示子像素在所述目标亮度下的补色增益，对所述目标像素单元的色度进行补偿，包括：
    基于任一显示子像素在所述目标亮度下的补色增益，确定向所述任一显示子像素提供的驱动输出信号，所述驱动输出信号用于驱动所述子像素发光；
    向所述任一显示子像素提供所述驱动输出信号，以供对所述目标像素单元的色度进行补偿。
  11. 一种色度补偿装置，其中，所述装置包括：
    第一获取模块，用于获取目标像素单元中显示子像素在目标亮度下的初始颜色，及所述目标像素单元在所述目标亮度下的目标颜色，所述目标像素单元包括：发光颜色不同的至少两个显示子像素；
    第二获取模块，用于基于所述目标颜色和每个显示子像素的初始颜色，在所述目标亮度下，分别获取每个显示子像素的补色增益；
    补偿模块，用于基于每个显示子像素在所述目标亮度下的补色增益，对所述目标像素单元的色度进行补偿；
    其中，任一显示子像素在所述目标亮度下的补色增益用于表征在所述目标亮度下，将所述目标像素单元的颜色由初始颜色补偿至所述目标颜色时，需要对所述任一显示子像素进行补偿的程度。
  12. 根据权利要求11所述的装置，其中，所述第二获取模块，用于基于所述目标颜色和任一显示子像素的初始颜色，查询所述任一显示子像素的亮度与补色增益的对应关系，确定所述任一显示子像素在所述目标亮度下的补色增益，所述对应关系中记载有所述任一显示子像素在所述初始颜色和不同亮度下，将所述目标像素单元补偿至所述目标颜色的补色增益。
  13. 根据权利要求12所述的装置，其中，
    所述第二获取模块，还用于基于所述目标颜色和每个显示子像素的初始颜色，在多个参考亮度下，分别获取每个显示子像素的补色增益；
    所述装置还包括：建立模块，用于在所述目标颜色和每个显示子像素的初始颜色下，建立每个显示子像素的亮度与补色增益的对应关系。
  14. 根据权利要求11或13所述的装置，其中，所述第二获取模块，包括：
    第一确定子模块，用于在第一亮度下，基于所述至少两个显示子像素的初始颜色，确定所述目标像素单元的第一初始颜色，所述第一亮度为所述目标亮 度或所述多个参考亮度中的任意一个；
    第一获取子模块，用于基于所述第一初始颜色和所述至少两个显示子像素的初始颜色，分别获取每个显示子像素的初始颜色相对于所述第一初始颜色的第一取代比例，所述第一取代比例为每个显示子像素的初始颜色在所述第一初始颜色中所占的比例；
    第二获取子模块，用于基于所述目标颜色和所述至少两个显示子像素的初始颜色，分别获取所述每个显示子像素的初始颜色相对于所述目标颜色的第二取代比例，所述第二取代比例为每个显示子像素的初始颜色在所述目标颜色中所占的比例；
    第二确定子模块，用于基于第一取代比例和第二取代比例，分别确定所述第一初始颜色在所述第一亮度下的第一补色系数，以及所述目标颜色在所述第一亮度下的第二补色系数，所述第一补色系数用于表征在获取所述第一初始颜色时需要进行色度补偿的程度，所述第二补色系数用于表征在获取所述目标颜色时需要进行色度补偿的程度；
    第三确定子模块，用于基于所述第一补色系数和所述第二补色系数确定每个显示子像素在所述第一亮度下的补色增益。
  15. 根据权利要求14所述的装置，其中，所述至少两个显示子像素包括第一子像素、第二子像素和第三子像素，当子像素的颜色由色坐标表征时，所述第一子像素对应的第j取代比例R Wj1，所述第二子像素对应的第j取代比例R Wj2，所述第三子像素对应的第j取代比例R Wj3，满足：
    Figure PCTCN2019082770-appb-100005
    Figure PCTCN2019082770-appb-100006
    Figure PCTCN2019082770-appb-100007
    其中，所述j为1或2，所述第一子像素的初始颜色的色坐标为(B X，B Y)，所述第二子像素的初始颜色的色坐标为(G X，G Y)，所述第三子像素的初始颜色 的色坐标为(R X，R Y)，所述第一初始颜色的色坐标为(W 1X，W 1Y)，所述目标颜色的色坐标为(W 2X，W 2Y)，且所述R Z＝1-R X-R Y，G Z＝1-G X-G Y，B Z＝1-B X-B Y，W 1Z＝1-W 1X-W 1Y，W 2Z＝1-W 2X-W 2Y。
  16. 根据权利要求14或15所述的装置，其中，当子像素的颜色由色坐标表征时，所述第二确定子模块，用于：
    获取所述第一初始颜色的色坐标和所述目标颜色的色坐标在色坐标系中的相对位置；
    基于所述相对位置，确定导致所述第一初始颜色偏离所述目标颜色的主导颜色分量，所述主导颜色分量为导致所述第一初始颜色偏离所述目标颜色的颜色分量中占比最大的颜色分量；
    将发光颜色为所述主导颜色分量的子像素的第一取代比例，确定为所述第一补色系数；
    将发光颜色为所述主导颜色分量的子像素的第二取代比例，确定为所述第二补色系数。
  17. 根据权利要求16所述的装置，其中，所述至少两个显示子像素包括第一子像素、第二子像素和第三子像素，所述第二确定子模块，用于：
    当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1Y≥W 2Y时，将所述第二子像素的发光颜色确定为所述主导颜色分量；
    当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1X≥W 2X且W 1Y<W 2Y时，将所述第三子像素的发光颜色确定为所述主导颜色分量；
    当所述第一初始颜色的色坐标(W 1X，W 1Y)与所述目标颜色的色坐标(W 2X，W 2Y)满足：W 1X<W 2X且W 1Y<W 2Y时，将所述第一子像素的发光颜色确定为所述主导颜色分量。
  18. 一种显示装置，所述显示装置包括：色度补偿装置，所述色度补偿装置包括：
    第一获取模块，用于获取目标像素单元中显示子像素在目标亮度下的初始颜色，及所述目标像素单元在所述目标亮度下的目标颜色，所述目标像素单元包括：发光颜色不同的至少两个显示子像素；
    第二获取模块，用于基于所述目标颜色和每个显示子像素的初始颜色，在所述目标亮度下，分别获取每个显示子像素的补色增益；
    补偿模块，用于基于每个显示子像素在所述目标亮度下的补色增益，对所述目标像素单元的色度进行补偿；
    其中，任一显示子像素在所述目标亮度下的补色增益用于表征在所述目标亮度下，将所述目标像素单元的颜色由初始颜色补偿至所述目标颜色时，需要对所述任一显示子像素进行补偿的程度。
  19. 一种色度补偿设备，所述色度补偿设备包括：
    处理器；和
    存储器；
    所述存储器存储有至少一个程序，所述至少一个程序被配置成由所述处理器执行，所述至少一个程序被处理器执行时能够实现权利要求1至10任一所述的色度补偿方法。
  20. 一种存储介质，所述存储介质中存储有计算机程序，存储的所述计算机程序被处理器执行时能够实现权利要求1至10任一所述的色度补偿方法。
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