WO2022178992A1 - 一种显示面板驱动方法、显示装置及驱动装置 - Google Patents

一种显示面板驱动方法、显示装置及驱动装置 Download PDF

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Publication number
WO2022178992A1
WO2022178992A1 PCT/CN2021/096470 CN2021096470W WO2022178992A1 WO 2022178992 A1 WO2022178992 A1 WO 2022178992A1 CN 2021096470 W CN2021096470 W CN 2021096470W WO 2022178992 A1 WO2022178992 A1 WO 2022178992A1
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Prior art keywords
target
driving voltage
voltage value
compensation
pixel
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PCT/CN2021/096470
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English (en)
French (fr)
Inventor
张云
陈辛洪
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Tcl华星光电技术有限公司
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Priority to US17/431,151 priority Critical patent/US11908426B2/en
Publication of WO2022178992A1 publication Critical patent/WO2022178992A1/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
    • G09G3/22—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
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • 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
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • the present application relates to the field of display technology, and in particular, to a method for driving a display panel, a display device, and a driving device.
  • De-Mura spot removal
  • the specific process of the method is to obtain the Mura information through the brightness collection of the display panel, and then calculate the compensation value according to some algorithms to form a De-Mura lookup table, and the hardware control chip performs the compensation operation by retrieving the De-Mura lookup table.
  • De-Mura data generally performs linear compression processing.
  • the De-Mura lookup table stores the grayscale value of each grayscale. -Mura technology leaked.
  • the linear compression and decompression method will lead to data distortion, and the De-Mura effect will be worse.
  • the present application provides a display panel driving method, a display device, and a driving device, which are used to alleviate the technical problem of easy data distortion in current compression and decompression methods.
  • the present application provides a display panel driving method, the display panel includes a plurality of compression units arranged in an array, and the display panel driving method includes:
  • the corresponding target compensation curve coefficient is determined in the compressed speckle removal data corresponding to the target compression unit, and the compressed speckle removal data includes each target driving voltage value of the target compression unit and the corresponding Compensation curve coefficient;
  • the effective driving voltage value of the target pixel when displaying the target content According to the position information of the target pixel in the target compression unit and the target compensation curve coefficient, determine the effective driving voltage value of the target pixel when displaying the target content;
  • the display panel is driven to work according to the effective driving voltage values of all target pixels in the display panel.
  • the method before the step of acquiring the standard driving voltage value of the target pixel when displaying the target content, the method further includes:
  • the compression parameter determine the pixel to be detected in the compression unit
  • the compressed speckle removal data corresponding to the compression unit is determined.
  • the step of fitting the compensation parameters to obtain the compensation parameters after fitting includes:
  • the compensation parameters are fitted to obtain post-fit compensation parameters.
  • the step of fitting the compensation parameter according to the curve type to obtain the compensation parameter after fitting includes:
  • the compensation curve coefficients in the compensation function are determined.
  • the position information of the target pixel in the target compression unit includes a first row
  • the target compensation is based on the position information of the target pixel in the target compression unit and the target compensation.
  • Curve coefficient, the step of determining the effective driving voltage value of the target pixel when displaying the target content including:
  • the effective driving voltage value of the target pixel when displaying the target content is determined according to the cell column identifier, the compensation function and the target compensation curve coefficient.
  • the position information of the target pixel in the target compression unit includes a first column, according to the position information of the target pixel in the target compression unit and the target compensation Curve coefficient, the step of determining the effective driving voltage value of the target pixel when displaying the target content, including:
  • the effective driving voltage value of the target pixel when displaying the target content is determined.
  • the position information of the target pixel in the target compression unit includes other positions except the first row and the first column, according to the target pixel in the target compression unit and the target compensation curve coefficient, the step of determining the effective driving voltage value of the target pixel when displaying the target content includes:
  • the global row identifier and the global column identifier are respectively obtained by taking the remainder to obtain the unit row identifier and the unit column identifier of the target pixel;
  • a comparison value of the first effective driving voltage value and the second effective driving voltage value is calculated, and the comparison value is determined as the effective driving voltage value of the target pixel when the target content is displayed.
  • the driving voltage value includes a gray-scale voltage value.
  • the step of obtaining the standard driving voltage value of the target pixel when displaying the target content includes:
  • the standard driving voltage value of the target pixel when displaying the target content is determined.
  • the step of obtaining the compensation parameter corresponding to the target driving voltage value of the pixel to be detected includes:
  • a compensation parameter corresponding to the target driving voltage value of the pixel to be detected is determined.
  • the present application also provides a display device, including a display panel and a driver chip, wherein:
  • the display panel includes a plurality of compression units arranged in an array
  • the driving chip is used to obtain the standard driving voltage value of the target pixel when displaying the target content; obtain the target compression unit corresponding to the target pixel; according to the standard driving voltage value, in the compressed speckle removal data corresponding to the target compression unit Determine the corresponding target compensation curve coefficients, and the compression speckle removal data includes the target driving voltage values of the target compression unit and the corresponding compensation curve coefficients; according to the position information of the target pixels in the target compression unit, and The target compensation curve coefficient determines the effective driving voltage value of the target pixel when displaying the target content; the display panel is driven to work according to the effective driving voltage value of all target pixels in the display panel.
  • a driving device comprising:
  • the first acquisition module is used to acquire the standard driving voltage value of the target pixel when displaying the target content
  • a second acquisition module configured to acquire the target compression unit corresponding to the target pixel
  • the first determination module is configured to determine the corresponding target compensation curve coefficient in the compressed speckle removal data corresponding to the target compression unit according to the standard driving voltage value, and the compressed speckle removal data includes each of the target compression unit.
  • a second determining module configured to determine the effective driving voltage value of the target pixel when displaying the target content according to the position information of the target pixel in the target compression unit and the target compensation curve coefficient;
  • the driving module is used for driving the display panel to work according to the effective driving voltage values of all target pixels in the display panel.
  • a third acquisition module is further included, and the third acquisition module is used to acquire compression parameters and decompression methods; according to the compression parameters, determine the pixels to be detected in the compression unit; acquire the to-be-detected pixels Compensation parameters corresponding to the target driving voltage values of the pixels are detected; the compensation parameters are fitted to obtain post-fit compensation parameters; and the compressed speckle removal data corresponding to the compression unit is determined according to the post-fit compensation parameters.
  • the present application also provides a display panel driving method, the display panel includes a plurality of compression units arranged in an array, and the display panel driving method includes:
  • the compression parameter determine the pixel to be detected in the compression unit
  • the gamma curve and the light-emitting brightness value of the target pixel determine the standard driving voltage value of the target pixel when displaying the target content
  • the corresponding target compensation curve coefficient is determined in the compressed speckle removal data corresponding to the target compression unit, and the compressed speckle removal data includes each target driving voltage value of the target compression unit and the corresponding Compensation curve coefficient;
  • the effective driving voltage value of the target pixel when displaying the target content According to the position information of the target pixel in the target compression unit and the target compensation curve coefficient, determine the effective driving voltage value of the target pixel when displaying the target content;
  • the display panel is driven to work according to the effective driving voltage values of all target pixels in the display panel.
  • the step of fitting the compensation parameters to obtain the compensation parameters after fitting includes:
  • the compensation parameters are fitted to obtain post-fitting compensation parameters.
  • the step of fitting the compensation parameter according to the curve type to obtain the compensation parameter after fitting includes:
  • the compensation curve coefficients in the compensation function are determined.
  • the position information of the target pixel in the target compression unit includes a first row
  • the target compensation is based on the position information of the target pixel in the target compression unit and the target compensation.
  • Curve coefficient, the step of determining the effective driving voltage value of the target pixel when displaying the target content including:
  • the effective driving voltage value of the target pixel when displaying the target content is determined according to the cell column identifier, the compensation function and the target compensation curve coefficient.
  • the position information of the target pixel in the target compression unit includes a first column, according to the position information of the target pixel in the target compression unit and the target compensation Curve coefficient, the step of determining the effective driving voltage value of the target pixel when displaying the target content, including:
  • the effective driving voltage value of the target pixel when displaying the target content is determined.
  • the position information of the target pixel in the target compression unit includes other positions except the first row and the first column, according to the target pixel in the target compression unit and the target compensation curve coefficient, the step of determining the effective driving voltage value of the target pixel when displaying the target content includes:
  • the global row identifier and the global column identifier are respectively obtained by taking the remainder to obtain the unit row identifier and the unit column identifier of the target pixel;
  • a comparison value of the first effective driving voltage value and the second effective driving voltage value is calculated, and the comparison value is determined as the effective driving voltage value of the target pixel when the target content is displayed.
  • the step of acquiring the compensation parameter corresponding to the target driving voltage value of the pixel to be detected includes:
  • a compensation parameter corresponding to the target driving voltage value of the pixel to be detected is determined.
  • the present application provides a display panel driving method, display device and driving device.
  • the method first obtains a standard driving voltage value of a target pixel when displaying target content and a corresponding target compression unit, and then according to the standard driving voltage value, in the
  • the corresponding target compensation curve coefficient is determined in the compressed speckle removal data corresponding to the target compression unit, and then according to the position information of the target pixel in the target compression unit and the target compensation curve coefficient, determine the target pixel when displaying the target content.
  • the compression speckle removal data stored in the De-Mura look-up table of the method includes the target driving voltage values of the target compression unit and the corresponding compensation curve coefficients.
  • the compensation curve coefficient values stored in this compression method are corresponding to the curve corresponding to the actual compensation value change trend. Compared with the current linear compensation, the compensation result is more suitable for the actual compensation result; in addition, according to the standard driving voltage value of the target pixel, in the compressed speckle removal data corresponding to the target compression unit where the target pixel is located, the corresponding The target compensation curve coefficient, and decompress according to the different position information of the target pixel in the target compression unit.
  • This decompression method can accurately find the corresponding decompressed data, and the decompressed data is very close to the actual data. The accuracy of speckle data decompression is improved.
  • FIG. 1 is a flowchart of a display panel driving method provided by an embodiment of the present application.
  • FIG. 2a is a schematic diagram of a module of a display device provided by an embodiment of the present application.
  • FIG. 2b is a schematic diagram of a module of a driving device provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a compression unit provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of compressing an original De-Mura table provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a compensation function provided by an embodiment of the present application.
  • first and second are only used for the purpose of description, and are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, which cannot be understood. To indicate or imply relative importance or to imply the number of technical features indicated. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features and the terms so used may be interchanged under appropriate circumstances for the embodiments described herein Can be implemented in sequences other than those shown in the drawings or described.
  • the term “plurality” means two or more, unless expressly specifically limited otherwise.
  • the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion.
  • the embodiments of the present application can alleviate the technical problem that the speckle removal data is easily distorted during the compression and decompression process of the current compression and decompression methods.
  • the display panel driving method provided by the embodiment of the present application includes:
  • Step 101 Acquire compressed speckle removal data corresponding to each compression unit in the display panel.
  • the display panel includes a plurality of compression units arranged in an array, and the compression units include M*N pixels arranged in an array.
  • each pixel of the display panel is processed, that is, each pixel corresponds to one De-Mura data.
  • the embodiment of the present application takes a high-definition display panel with a resolution of 3840*2160 as an example.
  • the display panel has 3840*2160 pixel units, that is, the De-Mura table before compression consists of 3840*2160 data.
  • the pixel described in this application may refer to a pixel that adopts a true RGB structure, that is, in the same row of pixels, red sub-pixels, green sub-pixels and blue sub-pixels are arranged in turn in a circular manner, so that for the sampling unit , it is necessary to provide corresponding De-Mura values for the sub-pixels of these three colors.
  • the pixels may be formed by using RGBW (red sub-pixels, green sub-pixels, blue sub-pixels, and white sub-pixels) 4 sub-pixel arrays, and sub-pixels may also be used. achieved in a reusable manner.
  • the same De-Mura value may be configured for three different color sub-pixels, or the same De-Mura value may be configured for two different color sub-pixels.
  • this step includes: acquiring a compression parameter and a decompression method, then determining the pixel to be detected in the compression unit according to the compression parameter, and then acquiring the compensation corresponding to the target driving voltage value of the pixel to be detected parameters, and then fitting the compensation parameters to obtain post-fitting compensation parameters, and finally determining the compressed speckle removal data corresponding to the compression unit according to the post-fitting compensation parameters.
  • the driving voltage value includes a grayscale voltage value.
  • the decompression methods can be divided into three types: the first is the decompression method of the target pixel in the first row, the second is the decompression method of the target pixel in the first row. The decompression method of the target pixel in the first column, and the third is the decompression method of the target pixel in other positions except the first row and the first column.
  • the pixel to be detected refers to the pixel in the first row or the first column in the target compression unit.
  • the target driving voltage value of the pixel to be detected refers to the driving voltage value that enables the pixel to achieve the ideal light output brightness value.
  • the ideal driving voltage corresponding to the pixel can be determined.
  • the compensation parameter may be the actual driving voltage value of the pixel to emit light in order to achieve the same brightness of the display panel during speckle removal processing; For the purpose of consistency of brightness, the difference between the actual driving voltage value and the ideal driving voltage value of the target pixel.
  • the step of fitting the compensation parameter to obtain the fitted compensation parameter includes: determining a curve type according to a change trend of the compensation parameter, where the curve type at least includes a parabola; According to the curve type, the compensation parameters are fitted to obtain the compensation parameters after fitting.
  • the curve type can be linear, parabolic, sine-cosine function curve and so on. Taking Fig. 5 as an example, the compensation parameters refer to the data corresponding to the "original column" in the table, and the post-fitting compensation parameters refer to the data corresponding to the "fitting column" in the table.
  • the step of fitting the compensation parameter according to the curve type to obtain the fitting compensation parameter includes: setting a compensation function corresponding to the compensation curve according to the curve type; After fitting the compensation parameters, determine the compensation curve coefficients in the compensation function.
  • FIG. 5 what is drawn in FIG. 5 is the relationship between the pixels in the first row of the compression unit Q in FIG. 3 and the compensation parameters and the effective driving voltage values.
  • the broken line drawn by the dotted line indicates that, in the target compression unit, the unit column identifier (x can be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16), and the corresponding relationship between the compensation parameters of the pixels, where the compensation parameters are the compensated actual driving voltage values that make the pixels emit light after speckle removal processing.
  • the broken line graph drawn by the dotted line it can be roughly obtained that the change trend of the compensation parameters with the pixel unit column identification is a quadratic function curve.
  • the stored data is: 220 (gray-scale voltage value)-(-0.0938, 1.5894, 216.76) (transverse compensation curve coefficient)-(-0.0916, 1.6459, 217.53) (longitudinal compensation curve coefficient), 50 (gray-scale voltage value)-(-0.0324, 1.2345, 47.5328) (transverse compensation curve coefficient)-(-0.0298, 1.3261, 48.7534) (longitudinal compensation curve coefficient) and so on.
  • Step 102 Obtain the standard driving voltage value of the target pixel when the target content is displayed.
  • the target content may be the ideal grayscale value of the pixel, that is, the ideal light-emitting brightness value of the pixel.
  • the target content may be 0 to 255 grayscales. anyone.
  • the standard driving voltage value of the target pixel can be obtained from the gamma curve and the light output brightness.
  • the target gamma value may be set to 2.2, 2.3, etc., or may be set according to user requirements, etc., which is not specifically limited herein.
  • Step 103 Obtain the target compression unit corresponding to the target pixel.
  • the corresponding target compression unit is the compression unit Q; if the target pixel is D, the corresponding target compression unit is the compression unit Q.
  • Step 104 Determine the corresponding target compensation curve coefficient in the compressed speckle removal data corresponding to the target compression unit according to the standard driving voltage value.
  • the compressed speckle removal data includes each target driving voltage value of the target compression unit and the corresponding compensation curve coefficient.
  • the target content can be any one of 0 to 255 grayscales
  • each compression unit can store 256 groups of target driving voltage values and corresponding
  • the target driving voltage value in the compressed speckle removal data can be uniquely determined, that is, the corresponding compensation curve coefficient can be determined. As shown in FIG.
  • the standard driving voltage value is 220
  • the driving target of the compressed speckle removal data can be uniquely determined
  • the compensation curve coefficients are -0.0938, 1.5894, and 216.76.
  • Step 105 Determine the effective driving voltage value of the target pixel when displaying the target content according to the position information of the target pixel in the target compression unit and the target compensation curve coefficient.
  • the position information of the pixel E in the target compression unit is the first row
  • the global column identifier of the target pixel is 3829
  • the position information of pixel B in the target compression unit is the first column.
  • the position information of the pixel F in the target compression unit is the first column
  • the global row identifier of the target pixel is 2158
  • the unit row identifier of the target pixel is 4; the first effective driving voltage value corresponding to the unit row identifier 4 is obtained, and the first effective driving voltage value needs to pass the compensation curve coefficient of the first column in the target compression unit Q and The unit row identifier 4 is calculated and obtained; the second effective driving voltage
  • the second effective driving voltage value can be obtained as 223; then the comparison value of the first effective driving voltage value and the second effective driving voltage value is calculated, and the comparison value is calculated.
  • the control value may be the average value of the two, or the variance of the two.
  • the horizontal compression parameter is used to divide the global column identifier, it can be completely divided, and at this time, the global column identifier is subtracted according to the horizontal compression parameter, and the unit column identifier obtained is equal to the horizontal compression parameter.
  • the vertical compression parameter is used to divide the global row identifier, it can be completely divided, then at this time, the global row identifier is subtracted according to the vertical compression parameter, and the unit row identifier obtained is equal to the vertical compression parameter.
  • the global row identifier or the global column identifier is taken as the remainder, and the range of the remainder is greater than or equal to 1 and less than or equal to the integer value of the compression parameter.
  • Step 106 Drive the display panel to work according to the effective driving voltage values of all target pixels in the display panel.
  • the target pixels can be made to emit light according to the effective driving voltage values, thereby enabling the display panel to work.
  • the target pixel may be a pixel whose relevant data, such as an effective driving voltage value, have been stored in a driving voltage input board corresponding to the display panel, wherein the driving voltage input board may be electrically connected to the display panel TCON board, the driving voltage input board can store a driving voltage table, and the driving voltage table can store the effective driving voltage value corresponding to the target pixel, so that when driving the display panel to work, for the target pixel, you can directly The driving voltage table looks up the corresponding effective driving voltage value and inputs it into the display panel to drive the target pixel to work, so that the entire display panel works.
  • the driving voltage input board may be electrically connected to the display panel TCON board
  • the driving voltage input board can store a driving voltage table
  • the driving voltage table can store the effective driving voltage value corresponding to the target pixel, so that when driving the display panel to work, for the target pixel, you can directly
  • the driving voltage table looks up the corresponding effective driving voltage value and inputs it into the display panel to drive the target pixel to work
  • the compressed speckle removal data is stored in the De-Mura look-up table, and the compressed speckle removal data includes the target driving voltage value of each pixel and the corresponding compensation curve coefficient.
  • De -Mura lookup table stores the grayscale value of each grayscale.
  • the display device provided by the embodiment of the present application includes a display panel 201 and a driving chip 202, wherein:
  • a display panel 201 the display panel includes a plurality of compression units arranged in an array;
  • the driving chip 202 is used to obtain the standard driving voltage value of the target pixel when displaying the target content; obtain the target compression unit corresponding to the target pixel; The corresponding target compensation curve coefficient is determined in the data, and the compression speckle removal data includes the target driving voltage values of the target compression unit and the corresponding compensation curve coefficient; according to the position information of the target pixel in the target compression unit , and the target compensation curve coefficient to determine the effective driving voltage value of the target pixel when displaying the target content; the display panel is driven to work according to the effective driving voltage value of all target pixels in the display panel.
  • the display panel 201 includes at least one of a liquid crystal display panel and an OLED display panel.
  • the driving device provided by the embodiment of the present application includes:
  • the first obtaining module 210 is used to obtain the standard driving voltage value of the target pixel when displaying the target content
  • a second obtaining module 220 configured to obtain the target compression unit corresponding to the target pixel
  • the first determination module 230 is configured to determine the corresponding target compensation curve coefficient in the compressed speckle removal data corresponding to the target compression unit according to the standard driving voltage value, and the compressed speckle removal data includes the The driving voltage value of each target and the corresponding compensation curve coefficient;
  • the second determination module 240 is configured to determine the effective driving voltage value of the target pixel when displaying the target content according to the position information of the target pixel in the target compression unit and the target compensation curve coefficient;
  • the driving module 250 is configured to drive the display panel to work according to the effective driving voltage values of all target pixels in the display panel.
  • the driving device may further include a third acquiring module for acquiring compressed speckle removal data corresponding to each compression unit in the display panel. Specifically, a compression parameter and a decompression method are obtained; the pixel to be detected in the compression unit is determined according to the compression parameter; the compensation parameter corresponding to the target driving voltage value of the pixel to be detected is obtained; and the compensation parameter is fitted , to obtain a post-fitting compensation parameter; according to the post-fitting compensation parameter, determine the compressed speckle removal data corresponding to the compression unit.
  • a third acquiring module for acquiring compressed speckle removal data corresponding to each compression unit in the display panel. Specifically, a compression parameter and a decompression method are obtained; the pixel to be detected in the compression unit is determined according to the compression parameter; the compensation parameter corresponding to the target driving voltage value of the pixel to be detected is obtained; and the compensation parameter is fitted , to obtain a post-fitting compensation parameter; according to the post-fitting compensation parameter, determine the compressed speckle removal data corresponding to the compression
  • the driving device may further include a fitting module, configured to determine a curve type according to a change trend of the compensation parameter, where the curve type at least includes a parabola; and fit the compensation parameter according to the curve type. combined to obtain the post-fitting compensation parameters.
  • a fitting module configured to determine a curve type according to a change trend of the compensation parameter, where the curve type at least includes a parabola; and fit the compensation parameter according to the curve type. combined to obtain the post-fitting compensation parameters.
  • the driving device may further include a third determination module, configured to set a compensation function corresponding to the compensation curve according to the curve type; and determine a compensation curve coefficient in the compensation function according to the post-fitting compensation parameter .
  • a third determination module configured to set a compensation function corresponding to the compensation curve according to the curve type; and determine a compensation curve coefficient in the compensation function according to the post-fitting compensation parameter .

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Abstract

本申请提供一种显示面板驱动方法、显示装置及驱动装置；该方法先根据目标像素的标准驱动电压值在目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，再结合目标压缩单元内的位置信息确定有效驱动电压值，以驱动显示面板工作。本申请的补偿曲线系数更贴合实际补偿结果，提高了解压缩的准确性。

Description

一种显示面板驱动方法、显示装置及驱动装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板驱动方法、显示装置及驱动装置。
背景技术
显示面板的亮度分布不均匀，导致出现各种斑块，影响画质效果的现象，被称为Mura(斑)。随着显示技术的发展，现在显示面板的尺寸越来越大，面板越大对面板的生产技术要求就越来越高，越容易产生Mura(斑)。而De-Mura(消斑)就是一种对Mura(斑)进行补偿，使得整块显示面板的出光亮度值一致的方法。该方法的具体过程为经过显示面板亮度采集，得到Mura信息，然后根据一些算法计算得到补偿值，形成De-Mura查找表，硬件控制芯片通过检索De-Mura查找表进行补偿操作。
当前De-Mura数据的压缩解压缩一般会进行线性压缩处理，De-Mura查找表中存储的是每个灰阶的灰阶值，这种压缩存储方式对数据的加密程度较低，容易导致De-Mura技术泄露。此外，当压缩点之间的数据不是线性关系的时候，仍采用线性压缩和解压缩的方式会导致数据失真，De-Mura效果变差。
因此，当前压缩和解压缩方法存在数据易失真的技术问题，需要改进。
技术问题
本申请提供一种显示面板驱动方法、显示装置及驱动装置，用于缓解当前压缩和解压缩方法存在的数据易失真的技术问题。
技术解决方案
为了解决上述技术问题，本申请提供以下技术方案：
本申请提供一种显示面板驱动方法，所述显示面板包括阵列排布的多个压缩单元，所述显示面板驱动方法包括：
获取目标像素在显示标的内容时的标准驱动电压值；
获取所述目标像素对应的目标压缩单元；
根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确 定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；
根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；
根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
在本申请的显示面板驱动方法中，在所述获取目标像素在显示标的内容时的标准驱动电压值的步骤之前，还包括：
获取压缩参数以及解压缩方式；
根据所述压缩参数，确定压缩单元中的待检测像素；
获取所述待检测像素的标的驱动电压值对应的补偿参数；
对所述补偿参数进行拟合，得到拟合后补偿参数；
根据所述拟合后补偿参数，确定所述压缩单元对应的压缩消斑数据。
在本申请的显示面板驱动方法中，所述对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：
根据所述补偿参数的变化趋势，确定曲线类型，所述曲线类型至少包括抛物线；
根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数。
在本申请的显示面板驱动方法中，所述根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：
根据所述曲线类型，设置补偿曲线对应的补偿函数；
根据所述拟合后补偿参数，确定所述补偿函数中的补偿曲线系数。
在本申请的显示面板驱动方法中，所述目标像素在所述目标压缩单元内的位置信息包括第一行，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
获取所述目标像素的全局列标识；
根据压缩参数，对所述全局列标识进行取余，得到所述目标像素的单元列标识；
根据所述单元列标识、补偿函数和所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值。
在本申请的显示面板驱动方法中，所述目标像素在所述目标压缩单元内的位置信息包括第一列，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
获取所述目标像素的全局行标识；
根据压缩参数，对所述全局行标识进行取余，得到所述目标像素的单元行标识；
根据所述单元行标识、补偿函数和所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值。
在本申请的显示面板驱动方法中，所述目标像素在所述目标压缩单元内的位置信息包括除第一行且第一列以外的其他位置，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
获取所述目标像素的全局行标识、以及全局列标识；
根据压缩参数，分别对所述全局行标识、以及所述全局列标识进行取余，得到所述目标像素的单元行标识、以及单元列标识；
获取所述单元行标识对应的第一有效驱动电压值，以及所述单元列标识对应的第二有效驱动电压值；
计算所述第一有效驱动电压值以及所述第二有效驱动电压值的对照值，并将所述对照值确定为所述目标像素在显示所述标的内容时的有效驱动电压值。
在本申请的显示面板驱动方法中，所述驱动电压值包括灰阶电压值。
在本申请的显示面板驱动方法中，所述获取目标像素在显示标的内容时的标准驱动电压值的步骤，包括：
获取伽马曲线和目标像素的出光亮度值；
根据所述伽马曲线和所述目标像素的出光亮度值，确定所述目标像素在显示标的内容时的标准驱动电压值。
在本申请的显示面板驱动方法中，所述获取所述待检测像素的标的驱动电 压值对应的补偿参数的步骤，包括：
获取所述待检测像素的标的驱动电压值和实际驱动电压值；
根据所述标的驱动电压值和所述实际驱动电压值的差值，确定所述待检测像素的标的驱动电压值对应的补偿参数。
相应的，本申请还提供一种显示装置，包括显示面板、驱动芯片，其中：
显示面板包括阵列排布的多个压缩单元；
驱动芯片用于获取目标像素在显示标的内容时的标准驱动电压值；获取所述目标像素对应的目标压缩单元；根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
同时，本申请还提供一种驱动装置，包括：
第一获取模块，用于获取目标像素在显示标的内容时的标准驱动电压值；
第二获取模块，用于获取所述目标像素对应的目标压缩单元；
第一确定模块，用于根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；
第二确定模块，用于根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；
驱动模块，用于根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。在本申请的驱动装置中，还包括第三获取模块，所述第三获取模块用于获取压缩参数以及解压缩方式；根据所述压缩参数，确定压缩单元中的待检测像素；获取所述待检测像素的标的驱动电压值对应的补偿参数；对所述补偿参数进行拟合，得到拟合后补偿参数；根据所述拟合后补偿参数，确定所述压缩单元对应的压缩消斑数据。
本申请还提供一种显示面板驱动方法，所述显示面板包括阵列排布的多个 压缩单元，所述显示面板驱动方法包括：
获取压缩参数以及解压缩方式；
根据所述压缩参数，确定压缩单元中的待检测像素；
获取所述待检测像素的标的驱动电压值对应的补偿参数；
对所述补偿参数进行拟合，得到拟合后补偿参数；
根据所述拟合后补偿参数，确定所述压缩单元对应的压缩消斑数据；
获取伽马曲线和目标像素的出光亮度值；
根据所述伽马曲线和所述目标像素的出光亮度值，确定所述目标像素在显示标的内容时的标准驱动电压值；
获取所述目标像素对应的目标压缩单元；
根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；
根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；
根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
在本申请的显示面板驱动方法中，所述对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：
根据所述补偿参数的变化趋势，确定曲线类型，所述曲线类型至少包括抛物线；
根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数。
在本申请的显示面板驱动方法中，所述根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：
根据所述曲线类型，设置补偿曲线对应的补偿函数；
根据所述拟合后补偿参数，确定所述补偿函数中的补偿曲线系数。
在本申请的显示面板驱动方法中，所述目标像素在所述目标压缩单元内的位置信息包括第一行，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效 驱动电压值的步骤，包括：
获取所述目标像素的全局列标识；
根据压缩参数，对所述全局列标识进行取余，得到所述目标像素的单元列标识；
根据所述单元列标识、补偿函数和所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值。
在本申请的显示面板驱动方法中，所述目标像素在所述目标压缩单元内的位置信息包括第一列，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
获取所述目标像素的全局行标识；
根据压缩参数，对所述全局行标识进行取余，得到所述目标像素的单元行标识；
根据所述单元行标识、补偿函数和所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值。
在本申请的显示面板驱动方法中，所述目标像素在所述目标压缩单元内的位置信息包括除第一行且第一列以外的其他位置，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
获取所述目标像素的全局行标识、以及全局列标识；
根据压缩参数，分别对所述全局行标识、以及所述全局列标识进行取余，得到所述目标像素的单元行标识、以及单元列标识；
获取所述单元行标识对应的第一有效驱动电压值，以及所述单元列标识对应的第二有效驱动电压值；
计算所述第一有效驱动电压值以及所述第二有效驱动电压值的对照值，并将所述对照值确定为所述目标像素在显示所述标的内容时的有效驱动电压值。
在本申请的显示面板驱动方法中，所述获取所述待检测像素的标的驱动电压值对应的补偿参数的步骤，包括：
获取所述待检测像素的标的驱动电压值和实际驱动电压值；
根据所述标的驱动电压值和所述实际驱动电压值的差值，确定所述待检测像素的标的驱动电压值对应的补偿参数。
有益效果
本申请提供一种显示面板驱动方法、显示装置及驱动装置，该方法首先获取目标像素在显示标的内容时的标准驱动电压值，以及对应的目标压缩单元，然后根据该标准驱动电压值，在该目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，然后根据该目标像素在该目标压缩单元内的位置信息，以及该目标补偿曲线系数，确定目标像素在显示该标的内容时的有效驱动电压值，最后根据显示面板中所有目标像素的有效驱动电压值驱动显示面板工作。该方法De-Mura查找表存储的压缩消斑数据包含目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数，这种压缩方式存储的补偿曲线系数值是与实际补偿值变化趋势对应曲线的曲线系数，与当前线性补偿相比补偿结果更贴合实际补偿结果；此外，根据目标像素的标准驱动电压值，在该目标像素所在的目标压缩单元对应的压缩消斑数据中，可以唯一确定对应的目标补偿曲线系数，并根据目标像素在目标压缩单元内的不同位置信息进行解压缩，这种解压缩方式能准确的找到对应的解压缩数据，且解压缩的数据和实际数据非常接近，提高了消斑数据解压缩的准确性。
附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1是本申请实施例提供的显示面板驱动方法的流程图。
图2a是本申请实施例提供的显示装置的模块示意图。
图2b是本申请实施例提供的驱动装置的模块示意图。
图3是本申请实施例提供的压缩单元的示意图。
图4是本申请实施例提供的对原始De-Mura表进行压缩的示意图。
图5是本申请实施例提供的补偿函数的示意图。
本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要说明的是，术语“第一”、“第二”仅用于描述目的，是用于区别类似的对象，而不必用于描述特定的顺序或先后次序，不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征，这样使用的术语在适当情况下可以互换，以便这里描述的实施例能够以除了在附图或者描述的内容以外的顺序实施。术语“多个”的含义是两个或两个以上，除非另有明确具体的限定。此外，术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
针对当前压缩和解压缩方法存在的消斑数据在压缩和解压缩的过程中数据容易失真的技术问题，本申请实施例可以缓解。
如图1所示，本申请实施例提供的显示面板驱动方法包括：
步骤101：获取显示面板中各压缩单元对应的压缩消斑数据。
在一种实施例中，显示面板包括阵列排布的多个压缩单元，所述压缩单元包括阵列排布的M*N个像素。现有De-Mura(消斑)技术中，是针对显示面板的每个像素进行处理的，即每个像素对应一个De-Mura数据。如图3，本申请实施例以分辨率为3840*2160的高清显示面板为例，该显示面板有3840*2160个像素单元，即压缩前的De-Mura表由3840*2160个数据组成，若以16像素比例进行压缩，则一个压缩单元应该由16*16(M＝16，N＝16)个阵列排布的像素单元组成，如图4，压缩后的De-Mura表由240*135个数据组成。
在一种实施例中，本申请所述的像素可以是指采用真RGB结构的像素，即在同一行像素内，红色子像素、绿色子像素和蓝色子像素依次循环排列，这样针对采样单元，需要针对这3种颜色的子像素分别提供对应的De-Mura值。当然，在基于本申请的其他可以预见的实施例中，像素可以采用RGBW(红色子像素、绿色子像素、蓝色子像素和白色子像素)4种子像素阵列排布形成，还可以采用子像素复用的方式实现。在另外一些可以预见的实施例中，可以为三 种不同颜色的子像素配置相同的De-Mura值，或者两种不同颜色的子像素配置相同的De-Mura值。
在一种实施例中，本步骤包括：获取压缩参数以及解压缩方式，然后根据所述压缩参数，确定压缩单元中的待检测像素，接着获取所述待检测像素的标的驱动电压值对应的补偿参数，然后对所述补偿参数进行拟合，得到拟合后补偿参数，最后根据所述拟合后补偿参数，确定所述压缩单元对应的压缩消斑数据。
具体地，若以16像素比例进行压缩，压缩单元即为16*16(M＝16，N＝16)的像素方阵，经压缩处理后，如图4所示，整个显示面板由240*135个同样规格的压缩单元组成，其中，压缩参数：M＝16，N＝16；若以8像素比例进行压缩，则压缩参数：M＝8，N＝8。需要说明的是，M代表横向压缩参数，N代表纵向压缩参数。
在一种实施例中，所述驱动电压值包括灰阶电压值。
在一种实施例中，根据目标像素在显示所述目标压缩单元内的位置信息，解压缩方式可以分为三种：第一种是目标像素在第一行的解压缩方式、第二种是目标像素在第一列的解压缩方式，第三种是目标像素在除第一行且第一列以外的其他位置的解压缩方式。
在一种实施例中，待检测像素是指所述目标压缩单元中第一行或者第一列的像素。需要说明的是，待检测像素的标的驱动电压值指的是使像素能够达到理想出光亮度值的驱动电压值，具体地，根据理想出光亮度值以及伽马曲线，可以确定像素对应的理想驱动电压值，该理想驱动电压值即为标的驱动电压值，其中，伽马曲线的伽马值(Gamma)可以取Gamma＝2.2，Gamma＝2.3，也可以根据用户需求等进行设置等，在此不做具体限定。
在一种实施例中，补偿参数可以是消斑处理时，为达到显示面板的亮度一致的目的，使得像素出光的实际驱动电压值；补偿参数还可以是进行消斑处理时，为达到显示面板的亮度一致的目的，目标像素的实际驱动电压值和理想驱动电压值之间的差值。
在一种实施例中，对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：根据所述补偿参数的变化趋势，确定曲线类型，所述曲线类型至少包括 抛物线；根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数。其中，曲线类型可以是线性、抛物线、正余弦函数曲线等。以图5为例，补偿参数指的是表格中“原始栏”对应的数据，拟合后补偿参数指的是表格中“拟合栏”对应的数据。
在一种实施例中，根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：根据所述曲线类型，设置补偿曲线对应的补偿函数；根据所述拟合后补偿参数，确定所述补偿函数中的补偿曲线系数。
具体地，以图5为例，图5中绘制的是图3中压缩单元Q第一行的像素与补偿参数以及有效驱动电压值之间的关系。虚线所绘制的折线表示的是，在目标压缩单元内，第一行的像素的单元列标识(x可以取1、2、3、4、5、6、7、8、9、10、11、12、13、14、15、16)，与像素的补偿参数之间的对应关系，此处的补偿参数为像素经消斑处理后，使得像素出光的补偿后的实际驱动电压值。根据虚线所绘制的折线图，可以大致得到补偿参数随像素单元列标识的变化趋势为二次函数曲线，根据二次函数曲线类型的函数表达式，即y＝ax 2+bx+c，根据拟合后补偿参数，即图5中表格“拟合栏”对应的数据，可以得到补偿函数为y＝-0.0938x 2+1.5894x+216.76，其中y表示的是各像素的拟合后补偿参数，也是各像素的有效驱动电压值，x表示的是第一行的像素所在目标压缩单元Q内的单元列标识，x的取值为大于等于1、小于等于压缩参数(M＝16)的整数，此处x的取值即为1至16的整数。根据该补偿函数y＝-0.0938x 2+1.5894x+216.76，即能唯一确定补偿曲线系数为-0.0938、1.5894和216.76。
在一种实施例中，每个压缩单元，存储的数据为：220(灰阶电压值)-(-0.0938，1.5894，216.76)(横向补偿曲线系数)-(-0.0916，1.6459，217.53)(纵向补偿曲线系数)，50(灰阶电压值)-(-0.0324，1.2345，47.5328)(横向补偿曲线系数)-(-0.0298，1.3261，48.7534)(纵向补偿曲线系数)等。
步骤102：获取目标像素在显示标的内容时的标准驱动电压值。
在一种实施例中，标的内容可以是像素的理想灰阶值，也即像素的理想出光亮度值，例如，若面板能显示256个灰阶，则标的内容可以是0至255灰阶中的任意一个。
在一种实施例中，目标像素的标准驱动电压值可以通过伽马曲线以及出光 亮度得到。伽马曲线的公式为:L x＝(x/z) γ×L z，其中，x为像素对应的驱动电压值，L x为像素的驱动电压是x时对应的出光亮度值，z为最大驱动电压值，L z为像素的驱动电压是最大驱动电压z时对应的出光亮度值，γ为显示面板的目标伽马值。可选的，所述目标伽马值可以设置为2.2，2.3等，也可以根据用户需求等进行设置，在此不做具体限定。
步骤103：获取目标像素对应的目标压缩单元。
在一种实施例中，如图3，若目标像素为C，则其对应的目标压缩单元即压缩单元Q；若目标像素为D，则其对应的目标压缩单元为压缩单元Q。
步骤104：根据标准驱动电压值，在目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，压缩消斑数据包括目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数。
在一种实施例中，以显示面板能显示256个灰阶为例，标的内容可以是0至255灰阶中的任意一个，而每个压缩单元中可以存储有256组标的驱动电压值以及对应的补偿曲线系数，根据标的内容的标准驱动电压值可以唯一确定压缩消斑数据中的标的驱动电压值，即能确定与之对应的补偿曲线系数。如图5所示，根据压缩单元Q的第一行中像素的出光亮度值和伽马曲线，得到标准驱动电压值为220，根据标准驱动电压值220，可以唯一确定压缩消斑数据中标的驱动电压为220时的补偿曲线系数，该补偿曲线系数为-0.0938、1.5894、216.76。
步骤105：根据目标像素在目标压缩单元内的位置信息，以及目标补偿曲线系数，确定目标像素在显示标的内容时的有效驱动电压值。
在一种实施例中，如图3，以目标像素为A、横向压缩参数M＝16为例，则像素A在所述目标压缩单元内的位置信息为第一行，此时，本步骤包括：获取所述目标像素的全局列标识，即全局列标识为6；根据所述压缩参数M＝16，对所述全局列标识进行取余，得到所述目标像素的单元列标识为6；根据所述单元列标识、所述补偿函数和所述目标补偿曲线系数，如图5，第一行像素对应的目标补偿曲线系数分别为-0.0938、1.5894、216.76，其对应的补偿函数为y＝-0.0938x 2+1.5894x+216.76，将所述单元列标识x＝6代入该函数，确定所述目标像素在显示所述标的内容时的有效驱动电压值，得到y＝223，即该像素对应的有效驱动电压值为223。
同样的，如图3，若目标像素为E、横向压缩参数为M＝16，则像素E在所述目标压缩单元内的位置信息为第一行，此时，目标像素的全局列标识为3829，根据所述压缩参数M＝16，对全局列标识3829进行取余，得到所述目标像素的单元列标识为15，然后根据该目标像素的标准驱动电压值，可以在该像素对应的目标压缩单元的压缩消斑数据中确定对应的目标补偿曲线系数，以及对应的补偿函数，将x＝15代入该补偿函数中，即能得到该像素对应的有效驱动电压值。
在一种实施例中，如图3，以目标像素为B、纵向压缩参数为N＝16为例，则像素B在所述目标压缩单元内的位置信息为第一列，此时，本步骤包括：获取所述目标像素的全局行标识，即全局行标识为3；根据所述压缩参数N＝16，对所述全局行标识进行取余，得到所述目标像素的单元行标识为3；根据所述单元行标识、目标压缩单元中存储的纵向补偿曲线系数，得到补偿函数，从而确定所述目标像素在显示所述标的内容时的有效驱动电压值。
同样的，如图3，若目标像素为F、纵向压缩参数为N＝16，则像素F在所述目标压缩单元内的位置信息为第一列，此时，目标像素的全局行标识为2158，根据所述压缩参数N＝16，对全局列标识2158进行取余，得到所述目标像素的单元列标识为14，然后根据该目标像素的标准驱动电压值，可以在该像素对应的目标压缩单元的压缩消斑数据中确定对应的目标补偿曲线系数，以及对应的补偿函数，将y＝14代入该补偿函数中，即能得到该像素对应的有效驱动电压值。
在一种实施例中，如图3，以目标像素为C、横向压缩参数M＝16，纵向压缩参数N＝16为例，则像素C在所述目标压缩单元内的位置信息为除第一行、第一列以外的其他位置，此时，本步骤包括：获取所述目标像素的全局行标识、以及全局列标识，即全局行标识为4、以及全局列标识为8；根据所述横向压缩参数M＝16，对所述全局列标识进行取余，得到所述目标像素的单元列标识为8，根据所述纵向压缩参数N＝16，对所述全局行标识进行取余，得到所述目标像素的单元行标识为4；获取所述单元行标识4对应的第一有效驱动电压值，该第一有效驱动电压值需要通过该目标压缩单元Q中第一列的补偿曲线系数、以及单元行标识4计算得到；获取所述单元列标识8对应的第二有效驱动电压值，该第二有效驱动电压值需要通过该目标压缩单元Q中第一行的补偿曲线系数、以及单元列标识8计算得到的，通过图5，可以得到该第二有效驱动电压值为223； 然后计算所述第一有效驱动电压值以及所述第二有效驱动电压值的对照值，并将所述对照值确定为所述目标像素的有效驱动电压值。其中，所述对照值可以是二者的平均值，也可以是二者的方差等。
需要说明的是，若用横向压缩参数除全局列标识，可以除尽，则此时根据横向压缩参数对全局列标识取余，得到单元列标识即等于横向压缩参数。同样的，若用纵向压缩参数除全局行标识，可以除尽，则此时根据纵向压缩参数对全局行标识取余，得到单元行标识即等于纵向压缩参数。
需要说明的是，根据压缩参数对全局行标识或者全局列标识进行取余，其余数的范围为大于等于1，小于等于所述压缩参数的整数值。
步骤106：根据显示面板中所有目标像素的有效驱动电压值驱动显示面板工作。
在一种实施例中，在得到显示面板中所有目标像素的有效驱动电压值之后，根据所述有效驱动电压值，就可以使得目标像素出光，从而使得显示面板工作。
在一种实施例中，目标像素可以是其相关数据如有效驱动电压值等已存入显示面板对应的驱动电压输入板中的像素，其中，驱动电压输入板可以是与显示面板电性连接的TCON板，该驱动电压输入板中可以存储有驱动电压表，在驱动电压表中可以存储有目标像素对应的有效驱动电压值，以使得在驱动显示面板工作时，针对目标像素，可以直接根据该驱动电压表查找对应的有效驱动电压值并输入到显示面板中驱动该目标像素工作，以使得整个显示面板工作。
在本申请实施例中，所述压缩消斑数据存储于De-Mura查找表中，压缩消斑数据包括各像素的标的驱动电压值以及对应的补偿曲线系数，而当前压缩解压缩技术中，De-Mura查找表存储的是每个灰阶的灰阶值。同时，根据函数拟合进行压缩解压缩的方式，相较于当前压缩解压缩的线性补偿方式更加合理，对于数据的还原更加符合实际Mura的状况，提高了消斑数据解压缩的准确性。
在一种实施例中，如图2a所示，本申请实施例提供的显示装置包括显示面板201、驱动芯片202，其中：
显示面板201，所述显示面板包括阵列排布的多个压缩单元；
驱动芯片202，用于获取目标像素在显示标的内容时的标准驱动电压值；获取所述目标像素对应的目标压缩单元；根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
在一种实施例中，所述显示面板201包括液晶显示面板以及OLED显示面板中的至少一种。
在一种实施例中，如图2b所示，本申请实施例提供的驱动装置包括：
第一获取模块210，用于获取目标像素在显示标的内容时的标准驱动电压值；
第二获取模块220，用于获取所述目标像素对应的目标压缩单元；
第一确定模块230，用于根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；
第二确定模块240，用于根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；
驱动模块250，用于根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
可选的，该驱动装置还可以包括第三获取模块，用于获取显示面板中各压缩单元对应的压缩消斑数据。具体地，获取压缩参数以及解压缩方式；根据所述压缩参数，确定压缩单元中的待检测像素；获取所述待检测像素的标的驱动电压值对应的补偿参数；对所述补偿参数进行拟合，得到拟合后补偿参数；根据所述拟合后补偿参数，确定所述压缩单元对应的压缩消斑数据。
可选的，该驱动装置还可以包括拟合模块，用于根据所述补偿参数的变化趋势，确定曲线类型，所述曲线类型至少包括抛物线；根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数。
可选的，该驱动装置还可以包括第三确定模块，用于根据所述曲线类型，设置补偿曲线对应的补偿函数；根据所述拟合后补偿参数，确定所述补偿函数中的补偿曲线系数。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示面板驱动方法、显示装置及驱动装置进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种显示面板驱动方法，其中，所述显示面板包括阵列排布的多个压缩单元，所述显示面板驱动方法包括：
    获取目标像素在显示标的内容时的标准驱动电压值；
    获取所述目标像素对应的目标压缩单元；
    根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；
    根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；
    根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
  2. 根据权利要求1所述的显示面板驱动方法，其中，在所述获取目标像素在显示标的内容时的标准驱动电压值的步骤之前，还包括：
    获取压缩参数以及解压缩方式；
    根据所述压缩参数，确定压缩单元中的待检测像素；
    获取所述待检测像素的标的驱动电压值对应的补偿参数；
    对所述补偿参数进行拟合，得到拟合后补偿参数；
    根据所述拟合后补偿参数，确定所述压缩单元对应的压缩消斑数据。
  3. 根据权利要求2所述的显示面板驱动方法，其中，所述对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：
    根据所述补偿参数的变化趋势，确定曲线类型，所述曲线类型至少包括抛物线；
    根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数。
  4. 根据权利要求3所述的显示面板驱动方法，其中，所述根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：
    根据所述曲线类型，设置补偿曲线对应的补偿函数；
    根据所述拟合后补偿参数，确定所述补偿函数中的补偿曲线系数。
  5. 根据权利要求1所述的显示面板驱动方法，其中，所述目标像素在所述目标压缩单元内的位置信息包括第一行，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
    获取所述目标像素的全局列标识；
    根据压缩参数，对所述全局列标识进行取余，得到所述目标像素的单元列标识；
    根据所述单元列标识、补偿函数和所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值。
  6. 根据权利要求1所述的显示面板驱动方法，其中，所述目标像素在所述目标压缩单元内的位置信息包括第一列，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
    获取所述目标像素的全局行标识；
    根据压缩参数，对所述全局行标识进行取余，得到所述目标像素的单元行标识；
    根据所述单元行标识、补偿函数和所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值。
  7. 根据权利要求1所述的显示面板驱动方法，其中，所述目标像素在所述目标压缩单元内的位置信息包括除第一行且第一列以外的其他位置，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
    获取所述目标像素的全局行标识、以及全局列标识；
    根据压缩参数，分别对所述全局行标识、以及所述全局列标识进行取余， 得到所述目标像素的单元行标识、以及单元列标识；
    获取所述单元行标识对应的第一有效驱动电压值，以及所述单元列标识对应的第二有效驱动电压值；
    计算所述第一有效驱动电压值以及所述第二有效驱动电压值的对照值，并将所述对照值确定为所述目标像素在显示所述标的内容时的有效驱动电压值。
  8. 根据权利要求1所述的显示面板驱动方法，其中，所述驱动电压值包括灰阶电压值。
  9. 根据权利要求1所述的显示面板驱动方法，其中，所述获取目标像素在显示标的内容时的标准驱动电压值的步骤，包括：
    获取伽马曲线和目标像素的出光亮度值；
    根据所述伽马曲线和所述目标像素的出光亮度值，确定所述目标像素在显示标的内容时的标准驱动电压值。
  10. 根据权利要求2所述的显示面板驱动方法，其中，所述获取所述待检测像素的标的驱动电压值对应的补偿参数的步骤，包括：
    获取所述待检测像素的标的驱动电压值和实际驱动电压值；
    根据所述标的驱动电压值和所述实际驱动电压值的差值，确定所述待检测像素的标的驱动电压值对应的补偿参数。
  11. 一种显示装置，其包括显示面板、驱动芯片，其中：
    所述显示面板包括阵列排布的多个压缩单元；
    所述驱动芯片用于获取目标像素在显示标的内容时的标准驱动电压值；获取所述目标像素对应的目标压缩单元；根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；根据所述显 示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
  12. 一种驱动装置，其包括：
    第一获取模块，用于获取目标像素在显示标的内容时的标准驱动电压值；
    第二获取模块，用于获取所述目标像素对应的目标压缩单元；
    第一确定模块，用于根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；
    第二确定模块，用于根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；
    驱动模块，用于根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
  13. 根据权利要求12所述的驱动装置，其中，还包括第三获取模块，所述第三获取模块用于获取压缩参数以及解压缩方式；根据所述压缩参数，确定压缩单元中的待检测像素；获取所述待检测像素的标的驱动电压值对应的补偿参数；对所述补偿参数进行拟合，得到拟合后补偿参数；根据所述拟合后补偿参数，确定所述压缩单元对应的压缩消斑数据。
  14. 一种显示面板驱动方法，其中，所述显示面板包括阵列排布的多个压缩单元，所述显示面板驱动方法包括：
    获取压缩参数以及解压缩方式；
    根据所述压缩参数，确定压缩单元中的待检测像素；
    获取所述待检测像素的标的驱动电压值对应的补偿参数；
    对所述补偿参数进行拟合，得到拟合后补偿参数；
    根据所述拟合后补偿参数，确定所述压缩单元对应的压缩消斑数据；
    获取伽马曲线和目标像素的出光亮度值；
    根据所述伽马曲线和所述目标像素的出光亮度值，确定所述目标像素在显 示标的内容时的标准驱动电压值；
    获取所述目标像素对应的目标压缩单元；
    根据所述标准驱动电压值，在所述目标压缩单元对应的压缩消斑数据中确定对应的目标补偿曲线系数，所述压缩消斑数据包括所述目标压缩单元的各标的驱动电压值以及对应的补偿曲线系数；
    根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值；
    根据所述显示面板中所有目标像素的有效驱动电压值驱动所述显示面板工作。
  15. 根据权利要求14所述的显示面板驱动方法，其中，所述对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：
    根据所述补偿参数的变化趋势，确定曲线类型，所述曲线类型至少包括抛物线；
    根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数。
  16. 根据权利要求15所述的显示面板驱动方法，其中，所述根据所述曲线类型，对所述补偿参数进行拟合，得到拟合后补偿参数的步骤，包括：
    根据所述曲线类型，设置补偿曲线对应的补偿函数；
    根据所述拟合后补偿参数，确定所述补偿函数中的补偿曲线系数。
  17. 根据权利要求14所述的显示面板驱动方法，其中，所述目标像素在所述目标压缩单元内的位置信息包括第一行，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
    获取所述目标像素的全局列标识；
    根据压缩参数，对所述全局列标识进行取余，得到所述目标像素的单元列标识；
    根据所述单元列标识、补偿函数和所述目标补偿曲线系数，确定所述目标 像素在显示所述标的内容时的有效驱动电压值。
  18. 根据权利要求14所述的显示面板驱动方法，其中，所述目标像素在所述目标压缩单元内的位置信息包括第一列，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
    获取所述目标像素的全局行标识；
    根据压缩参数，对所述全局行标识进行取余，得到所述目标像素的单元行标识；
    根据所述单元行标识、补偿函数和所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值。
  19. 根据权利要求14所述的显示面板驱动方法，其中，所述目标像素在所述目标压缩单元内的位置信息包括除第一行且第一列以外的其他位置，根据所述目标像素在所述目标压缩单元内的位置信息，以及所述目标补偿曲线系数，确定所述目标像素在显示所述标的内容时的有效驱动电压值的步骤，包括：
    获取所述目标像素的全局行标识、以及全局列标识；
    根据压缩参数，分别对所述全局行标识、以及所述全局列标识进行取余，得到所述目标像素的单元行标识、以及单元列标识；
    获取所述单元行标识对应的第一有效驱动电压值，以及所述单元列标识对应的第二有效驱动电压值；
    计算所述第一有效驱动电压值以及所述第二有效驱动电压值的对照值，并将所述对照值确定为所述目标像素在显示所述标的内容时的有效驱动电压值。
  20. 根据权利要求14所述的显示面板驱动方法，其中，所述获取所述待检测像素的标的驱动电压值对应的补偿参数的步骤，包括：
    获取所述待检测像素的标的驱动电压值和实际驱动电压值；
    根据所述标的驱动电压值和所述实际驱动电压值的差值，确定所述待检测像素的标的驱动电压值对应的补偿参数。
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