WO2023159444A1 - 显示面板的驱动方法及显示装置 - Google Patents

显示面板的驱动方法及显示装置 Download PDF

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Publication number
WO2023159444A1
WO2023159444A1 PCT/CN2022/077765 CN2022077765W WO2023159444A1 WO 2023159444 A1 WO2023159444 A1 WO 2023159444A1 CN 2022077765 W CN2022077765 W CN 2022077765W WO 2023159444 A1 WO2023159444 A1 WO 2023159444A1
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Prior art keywords
compensation
value
sub
pixel
target
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PCT/CN2022/077765
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English (en)
French (fr)
Inventor
周留刚
陈金水
孙建伟
孙志华
王武
汪俊
刘娇
邓杰
刘建涛
Original Assignee
京东方科技集团股份有限公司
合肥京东方显示技术有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN202280000281.3A priority Critical patent/CN117203693A/zh
Priority to US18/016,284 priority patent/US20240249658A1/en
Priority to PCT/CN2022/077765 priority patent/WO2023159444A1/zh
Publication of WO2023159444A1 publication Critical patent/WO2023159444A1/zh

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    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
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    • 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
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    • 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
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    • 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]
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    • 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
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    • 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
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    • 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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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    • G09G2300/04—Structural and physical details of display devices
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    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a driving method of a display panel and a display device.
  • Displays such as liquid crystal displays (Liquid Crystal Display, LCD) and organic light-emitting diodes (Organic Light-Emitting Diode, OLED) generally include a plurality of pixel units. Each pixel unit may include: a red sub-pixel, a green sub-pixel and a blue sub-pixel. By controlling the brightness corresponding to each sub-pixel, the required display color is mixed to display a color image.
  • LCD Liquid Crystal Display
  • OLED Organic Light-Emitting Diode
  • the grayscale value of each subpixel in the current row determines each of the subpixels in the current row A corresponding target grayscale value; wherein, the target compensation value is obtained according to the set grayscale picture and the set reload picture displayed on the display panel;
  • a data voltage is input to a data line in the display panel, so that each of the sub-pixels in the current row is charged with a corresponding data voltage.
  • the target compensation lookup table includes: a plurality of different first grayscale values, a plurality of different second grayscale values, and any of the first grayscale values and any of the first grayscale values The target compensation value corresponding to the two grayscale values;
  • the determined target compensation value in the target compensation lookup table includes:
  • the original compensation lookup table includes: a plurality of different first grayscale values, a plurality of different second grayscale values, and any of the first grayscale values and any The original compensation value corresponding to the second gray scale value;
  • the display area in the display panel has a plurality of predetermined compensation areas, and one compensation area corresponds to one target compensation lookup table and one compensation gain;
  • For each compensation zone determine the target compensation value in the target compensation lookup table, including:
  • determining the compensation gain corresponding to each compensation zone includes:
  • each of the compensation areas determine the overload detection compensation value corresponding to each of the compensation areas, and according to the brightness of the gray scale detection image in each of the compensation areas, determine Grayscale detection compensation values corresponding to each compensation area;
  • the compensation gain corresponding to each compensation area is determined according to the gray scale detection compensation value and the overload detection compensation value corresponding to each compensation area.
  • the compensation gain corresponding to each compensation area is determined according to the gray scale detection compensation value and the heavy load detection compensation value corresponding to each compensation area by using the following formula;
  • Gi1_a 1+(Dc1_a-Dn1_a)/Ds;
  • Gi1_a represents the compensation gain corresponding to the a-th compensation area
  • Dc1_a represents the overload detection compensation value corresponding to the a-th compensation area
  • Dn1_a represents the gray scale corresponding to the a-th compensation area Detection compensation value
  • Ds represents the reference value
  • a is an integer greater than 0.
  • the reference value is one of the gray scale detection compensation values.
  • the following formula is used to determine the target compensation value in the target compensation lookup table corresponding to the compensation area;
  • LMD1_a LYD1_a*Gi1_a;
  • LMD1_a represents the target compensation value in the target compensation lookup table corresponding to the a-th compensation area
  • LYD1_a represents the original compensation value in the original compensation look-up table corresponding to the a-th compensation area.
  • the compensation gain corresponding to each compensation area is determined according to the gray scale detection compensation value and the heavy load detection compensation value corresponding to each compensation area by using the following formula;
  • Gi2_a represents the compensation gain corresponding to the a-th compensation area
  • Dc2_a represents the overload detection compensation value corresponding to the a-th compensation area
  • Dn2_a represents the gray scale corresponding to the a-th compensation area Detection compensation value
  • a is an integer greater than 0.
  • the following formula is used to determine the target compensation value in the target compensation lookup table corresponding to the compensation area;
  • LMD2_a LYD2_a+Gi2_a;
  • LMD2_a represents the target compensation value in the target compensation lookup table corresponding to the ath compensation area
  • LYD2_a represents the original compensation value in the original compensation lookup table corresponding to the ath compensation area
  • Gi2_a represents the The compensation gain corresponding to the ath compensation area.
  • the current pixel is determined according to the grayscale value of each subpixel in the current row, the grayscale value of each subpixel in the previous row, and the target compensation value in a predetermined target compensation lookup table.
  • the target grayscale value corresponding to each sub-pixel in the row includes:
  • the grayscale value of each of the subpixels in the current row is the original grayscale value of each of the subpixels in the current row
  • the grayscale value of each of the subpixels in the previous row is above The original grayscale value of each sub-pixel in a row.
  • the grayscale value of each of the subpixels in the current row is the original grayscale value of each of the subpixels in the current row, and the grayscale value of each of the subpixels in the previous row is above The target grayscale value of each sub-pixel in a row.
  • the timing controller is configured to obtain the grayscale value of each subpixel in the current row and the grayscale value of each subpixel in the previous row; according to the grayscale value of each subpixel in the current row and the grayscale value of each subpixel in the previous row
  • the gray scale value of the sub-pixel and the target compensation value in the predetermined target compensation lookup table determine the target gray scale value corresponding to each of the sub-pixels in the current row; according to the target of each of the sub-pixels in the current row Gray scale value, input data voltage to the data line in the display panel, so that each of the sub-pixels in the current row is charged with the corresponding data voltage; wherein, the target compensation value is displayed according to the setting of the display panel Set the gray scale screen and set the reload screen to get.
  • the display device also includes a flash memory
  • the flash memory is configured to store a predetermined target compensation lookup table
  • the timing controller is further configured to obtain the target compensation lookup table from the flash memory when powered on.
  • the display panel includes multiple source drive circuits; different source drive circuits are connected to different data lines;
  • the timing controller is also configured to:
  • the display area is divided into a plurality of initial partitions along the row direction of the sub-pixels; wherein, one source driving circuit corresponds to at least one of the initial partitions;
  • Each of the initial partitions is divided into a plurality of compensation regions along the column direction of the sub-pixels.
  • Fig. 1a is some structural schematic diagrams of a display device in an embodiment of the present disclosure
  • FIG. 1b is another structural schematic diagram of a display device in an embodiment of the present disclosure.
  • FIG. 2 is some structural schematic diagrams of a display panel in an embodiment of the present disclosure
  • FIG. 3 is a timing diagram of some signals in an embodiment of the present disclosure.
  • FIG. 4 is another timing diagram of signals in an embodiment of the present disclosure.
  • FIG. 5 is another structural schematic diagram of a display panel in an embodiment of the present disclosure.
  • FIG. 6 is a timing diagram of some other signals in an embodiment of the present disclosure.
  • FIG. 7 is a timing diagram of some other signals in an embodiment of the present disclosure.
  • Fig. 8 is some flowcharts of the driving method in the embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of some target compensation lookup tables in an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of some original compensation lookup tables in an embodiment of the present disclosure.
  • FIG. 11 is some schematic diagrams of compensation zones in embodiments of the present disclosure.
  • Figure 12 is another schematic diagram of the compensation area in the embodiment of the present disclosure.
  • Fig. 13 is some other schematic diagrams of the compensation area in the embodiment of the present disclosure.
  • Fig. 14 is some other schematic diagrams of the compensation area in the embodiment of the present disclosure.
  • Fig. 15 is still some schematic diagrams of the compensation area in the embodiment of the present disclosure.
  • Fig. 16 is some other schematic diagrams of the compensation area in the embodiment of the present disclosure.
  • FIG. 17 is still some schematic diagrams of the compensation area in the embodiments of the present disclosure.
  • the display device may include a display panel 100 and a timing controller 200 .
  • the display panel 100 may include a plurality of pixel units arranged in an array, a plurality of gate lines GA (for example, GA1, GA2, GA3, GA4, GA5, GA6), a plurality of data lines DA (for example, DA1, DA2, DA3 , DA4, DA5, DA6, DA7), the gate drive circuit 110 and the source drive circuit 120.
  • GA gate lines
  • DA data lines
  • the gate driving circuit 110 is respectively coupled to the gate lines GA (eg, GA1, GA2, GA3, GA4, GA5, GA6), and the source driving circuit 120 is respectively coupled to the data lines DA (eg, DA1, DA2, DA3, DA4, DA5). , DA6, DA7) coupling.
  • the timing controller 200 can input control signals to the gate driving circuit 110, so that the gate driving circuit 110 can input signals to the gate lines GA (for example, GA1, GA2, GA3, GA4, GA5, GA6) to drive the gate lines GA.
  • GA eg, GA1, GA2, GA3, GA4, GA5, GA6.
  • the timing controller 200 inputs display data to the source driving circuit 120, so that the source driving circuit 120 can input data voltages to the data lines according to the display data, thereby charging the sub-pixels, causing the sub-pixels to input corresponding data voltages, and realizing the screen display function .
  • multiple source driving circuits 120 may be provided, and different source driving circuits are connected to different data lines.
  • the number of source driving circuits 120 can be set to two, wherein one source driving circuit 120 is connected to half the number of data lines, and the other source driving circuit 120 is connected to the other half of the number of data lines.
  • three, four, or more source driving circuits 120 can also be provided, which can be designed and determined according to the requirements of practical applications, and are not limited here.
  • the timing controller can obtain the grayscale value of each subpixel in the current row and the grayscale value of each subpixel in the previous row;
  • the grayscale value and the target compensation value in the predetermined target compensation lookup table determine the target grayscale value corresponding to each sub-pixel in the current row; according to the target grayscale value of each sub-pixel in the current row, the The data line inputs the data voltage, so that each sub-pixel in the current row is charged with the corresponding data voltage.
  • each pixel unit includes a plurality of sub-pixels.
  • a pixel unit may include red sub-pixels, green sub-pixels and blue sub-pixels, so that red, green and blue colors can be mixed to achieve color display.
  • the pixel unit may also include red sub-pixels, green sub-pixels, blue sub-pixels and white sub-pixels, so that color mixing can be performed through red, green, blue and white to achieve color display.
  • the luminous color of the sub-pixels in the pixel unit can be designed and determined according to the practical application environment, which is not limited here.
  • each sub-pixel includes a transistor pixel electrode.
  • a row of sub-pixels is correspondingly coupled to a gate line.
  • the sub-pixels in odd rows in the column are coupled to the data lines on the left side of the sub-pixels in the column, and the sub-pixels in even rows are coupled to the sub-pixels in the column.
  • the sub-pixels in odd rows in the column are coupled to the data lines on the right side of the sub-pixels in the column, and the sub-pixels in even rows are coupled to the data lines in the left side of the sub-pixels in the column.
  • the gate of the transistor is electrically connected to the corresponding gate line
  • the source of the transistor is electrically connected to the corresponding data line
  • the drain of the transistor is electrically connected to the pixel electrode.
  • the pixel array structure of the present disclosure can also be a double Gate structure, that is, two gate lines are set between two adjacent rows of pixels. This arrangement can reduce half of the data lines, that is, some data lines between two adjacent columns of pixels, and some adjacent two columns of pixels The data lines are not included, the specific pixel arrangement structure and the data lines, and the arrangement of the scanning lines is not limited.
  • the display panel in the embodiment of the present disclosure may be a liquid crystal display panel, an OLED display panel, etc., which is not limited herein.
  • Grayscale generally divides the brightness change between the darkest and the brightest into several parts for easy screen brightness control.
  • the displayed image consists of three colors of red, green, and blue, each of which can show different brightness levels, and the combination of red, green, and blue at different brightness levels can form different colors.
  • the number of gray scale bits of the liquid crystal display panel is 6 bits
  • the three colors of red, green and blue have 64 (ie 2 6 ) gray scales respectively, and the 64 gray scale values are 0-63 respectively.
  • the number of gray scale digits of the liquid crystal display panel is 8 bits, and the three colors of red, green, and blue have 256 (ie, 2 8 ) gray scales respectively, and the 256 gray scale values are 0-255 respectively.
  • the number of grayscale digits of the liquid crystal display panel is 10 bits, and the three colors of red, green, and blue have 1024 (ie, 2 10 ) grayscales respectively, and these 1024 grayscale values are 0-1023 respectively.
  • the number of grayscale digits of the liquid crystal display panel is 12 bits, and the three colors of red, green, and blue have 4096 (ie, 2 12 ) grayscales respectively, and the 4096 grayscale values are 0-4093 respectively.
  • the liquid crystal molecules at the sub-pixel when the data voltage input to the pixel electrode of the sub-pixel is greater than the voltage of the common electrode, the liquid crystal molecules at the sub-pixel can be positively polarized, and the polarity corresponding to the data voltage in the sub-pixel for positive polarity.
  • the liquid crystal molecules at the sub-pixel when the data voltage input to the pixel electrode of the sub-pixel is lower than the voltage of the common electrode, the liquid crystal molecules at the sub-pixel can be made to have a negative polarity, and then the polarity corresponding to the data voltage in the sub-pixel is negative.
  • the common electrode voltage can be 8.3V.
  • the liquid crystal molecules at the sub-pixel can be positive, and the data voltage of 8.3V-16V is the data voltage corresponding to the positive polarity.
  • a data voltage of 0.6V-8.3V is input into the pixel electrode of the sub-pixel, the liquid crystal molecules at the sub-pixel can be negatively polarized, and the data voltage of 0.6V-8.3V is the data voltage corresponding to the negative polarity.
  • the sub-pixel can correspond to the brightness of the maximum gray-scale value of positive polarity.
  • the sub-pixel can correspond to the brightness of the maximum gray scale value of the negative polarity.
  • the display panel can implement a frame inversion mode, a column inversion mode, a row inversion mode, a dot inversion mode, etc. according to controlling the polarity corresponding to the sub-pixels.
  • Mura defects can be divided into two types, one is the charging rate Mura caused by the uneven charging rate of sub-pixels, and the other is the conventional Mura caused by factors in the display panel manufacturing process such as the manufacturing process.
  • the regular Mura may appear when the display panel displays all the pictures, and the charging rate Mura usually appears in some special pictures due to the uneven charging rate, for example, in the heavy load picture (such as two adjacent rows of The screen displayed when the gray scale value difference is large, such as taking 8bit as an example, the heavy load screen can be the screen displayed when the gray scale value difference between two adjacent lines is more than 127 gray scale value) When displaying, the charging rate Mura will appear The problem.
  • the heavy load picture such as two adjacent rows of The screen displayed when the gray scale value difference is large, such as taking 8bit as an example, the heavy load screen can be the screen displayed when the gray scale value difference between two adjacent lines is more than 127 gray scale value
  • the red sub-pixel R11 , the green sub-pixel G11 , and the blue sub-pixel B11 constitute a pixel unit
  • the red sub-pixel R12 , the green sub-pixel G12 , and the blue sub-pixel B12 constitute a pixel unit
  • the red sub-pixel R21, the green sub-pixel G21, and the blue sub-pixel B21 constitute a pixel unit
  • the red sub-pixel R22, the green sub-pixel G22, and the blue sub-pixel B22 constitute a pixel unit.
  • the red sub-pixel R31, the green sub-pixel G31, and the blue sub-pixel B31 constitute a pixel unit
  • the red sub-pixel R32, the green sub-pixel G32, and the blue sub-pixel B32 constitute a pixel unit
  • the red sub-pixel R41, the green sub-pixel G41, and the blue sub-pixel B41 constitute a pixel unit
  • the red sub-pixel R42, the green sub-pixel G42, and the blue sub-pixel B42 constitute a pixel unit
  • the red sub-pixel R51, the green sub-pixel G51, and the blue sub-pixel B51 constitute a pixel unit
  • the red sub-pixel R52, the green sub-pixel G52, and the blue sub-pixel B52 constitute a pixel unit.
  • the red sub-pixel R61, the green sub-pixel G61, and the blue sub-pixel B61 constitute a pixel unit
  • the red sub-pixel R62, the green sub-pixel G62, and the blue sub-pixel B62 constitute a pixel
  • the green sub-pixel G11 , the red sub-pixel R21 , the green sub-pixel G31 , the red sub-pixel R41 , the green sub-pixel G51 and the red sub-pixel R61 are coupled to the data line DA2 .
  • the blue sub-pixel B11 , the green sub-pixel G21 , the blue sub-pixel B31 , the green sub-pixel G41 , the blue sub-pixel B51 and the green sub-pixel G61 are coupled to the data line DA3 .
  • the red sub-pixel R12, the blue sub-pixel B21, the red sub-pixel R32, the blue sub-pixel B41, the red sub-pixel R52, and the blue sub-pixel B61 are coupled to the data line DA4.
  • the green sub-pixel G12, the red sub-pixel R22, the green sub-pixel G32, the red sub-pixel R42, the green sub-pixel G52, and the red sub-pixel R62 are coupled to the data line DA5.
  • the blue sub-pixel B12, the green sub-pixel G22, the blue sub-pixel B32, the green sub-pixel G42, the blue sub-pixel B52, and the green sub-pixel G62 are coupled to the data line DA6.
  • the first row of subpixels corresponds to a grayscale value of 0, the second row of subpixels corresponds to a grayscale value of 192, the third row of subpixels corresponds to a grayscale value of 0, and the fourth row of subpixels corresponds to a grayscale value of 192.
  • the five rows of sub-pixels correspond to a grayscale value of 0, and the sixth row of subpixels corresponds to a grayscale value of 192 to display an overloaded screen as an example. Referring to Figures 2 to 4, the process of driving the display panel to display the overloaded screen can be as follows describe.
  • ga1 represents the signal loaded on the gate line GA1
  • ga2 represents the signal loaded on the gate line GA2
  • ga3 represents the signal loaded on the gate line GA3,
  • ga4 represents the signal loaded on the gate line GA4,
  • ga5 represents the signal loaded on the gate line GA5,
  • ga6 represents the signal loaded on the gate line GA6.
  • Vda2 represents the data voltage loaded on the data line DA2
  • Vda3 represents the data voltage loaded on the data line DA3.
  • the high level of the signals ga1 - ga6 can be used as a gate turn-on signal to control the transistors in the sub-pixels to be turned on.
  • the data line DA2 connected to the green sub-pixel G11 is loaded with the data voltage V02 corresponding to a grayscale value of 0, so that the green sub-pixel G11 inputs the data voltage V02 .
  • the signal ga2 on the gate line GA2 outputs a high-level gate-on signal, and the transistor in the red sub-pixel R21 is turned on.
  • the data voltage V02 is simultaneously input into the red sub-pixel R21 to precharge the red sub-pixel R21.
  • the data line DA3 connected to the blue sub-pixel B11 is loaded with the data voltage V02 corresponding to a grayscale value of 0, so that the blue sub-pixel B11 inputs the data voltage V02 .
  • the signal ga2 on the gate line GA2 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G21 is turned on.
  • the data voltage V02 is simultaneously input into the green sub-pixel G21 to precharge the green sub-pixel G21.
  • the data line DA2 connected to the red sub-pixel R21 is loaded with the data voltage V01 corresponding to 192 gray scale values, so that the red sub-pixel R21 is charged with the data voltage V01.
  • the signal ga3 on the gate line GA3 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G31 is turned on.
  • the data voltage V01 is simultaneously input into the green sub-pixel G31 to precharge the green sub-pixel G31.
  • the data line DA3 connected to the green sub-pixel G21 is loaded with the data voltage V01 corresponding to 192 gray scale values, so that the green sub-pixel G21 inputs the data voltage V01 .
  • the signal ga3 on the gate line GA3 outputs a high-level gate-on signal, and the transistor in the blue sub-pixel B31 is turned on.
  • the data voltage V01 is simultaneously input into the blue sub-pixel B31 to precharge the blue sub-pixel B31.
  • the data line DA2 connected to the green sub-pixel G31 is loaded with the data voltage V02 corresponding to a grayscale value of 0, so that the green sub-pixel G31 is charged with the data voltage V02.
  • the signal ga4 on the gate line GA4 outputs a high-level gate-on signal, and the transistor in the red sub-pixel R41 is turned on.
  • the data voltage V02 is simultaneously input into the red sub-pixel R41 to precharge the red sub-pixel R41.
  • the data line DA3 connected to the blue sub-pixel B31 is loaded with the data voltage V02 corresponding to a grayscale value of 0, so that the blue sub-pixel B31 is charged with the data voltage V02 .
  • the signal ga4 on the gate line GA4 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G41 is turned on.
  • the data voltage V02 is simultaneously input into the green sub-pixel G41 to precharge the green sub-pixel G41.
  • the data line DA2 connected to the red sub-pixel R41 is loaded with the data voltage V01 corresponding to 192 gray scale values, so that the red sub-pixel R41 is charged with the data voltage V01.
  • the signal ga5 on the gate line GA5 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G51 is turned on.
  • the data voltage V01 is simultaneously input into the green sub-pixel G51 to precharge the green sub-pixel G51.
  • the data line DA3 connected to the green sub-pixel G41 is loaded with the data voltage V01 corresponding to 192 gray scale values, so that the green sub-pixel G41 inputs the data voltage V01 .
  • the signal ga5 on the gate line GA5 outputs a high-level gate-on signal, and the transistor in the blue sub-pixel B51 is turned on.
  • the data voltage V01 is simultaneously input into the blue sub-pixel B51 to precharge the blue sub-pixel B51.
  • the data line DA2 connected to the green sub-pixel G51 is loaded with the data voltage V02 corresponding to 0 gray scale value, so that the green sub-pixel G51 is charged with the data voltage V02 .
  • the signal ga6 on the gate line GA6 outputs a high-level gate-on signal, and the transistor in the red sub-pixel R61 is turned on.
  • the data voltage V02 is simultaneously input into the red sub-pixel R51 to precharge the red sub-pixel R51.
  • the data line DA3 connected to the blue sub-pixel B51 is loaded with the data voltage V02 corresponding to a grayscale value of 0, so that the blue sub-pixel B51 is charged with the data voltage V02 .
  • the signal ga6 on the gate line GA6 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G61 is turned on.
  • the data voltage V02 is simultaneously input into the green sub-pixel G61 to precharge the green sub-pixel G61.
  • the data line DA2 connected to the red sub-pixel R61 is loaded with the data voltage V01 corresponding to 192 grayscale values, so that the red sub-pixel R61 is charged with the data voltage V01, and Precharge the next subpixel.
  • the data line DA3 connected to the green sub-pixel G61 is loaded with the data voltage V01 corresponding to 192 grayscale values, so that the green sub-pixel G61 inputs the data voltage V01, and The next subpixel is precharged.
  • the implementation manners of the remaining sub-pixels are deduced in turn until the sub-pixels in the entire display panel are completely charged with the data voltage, which will not be repeated here.
  • the red sub-pixels, green sub-pixels and blue sub-pixels in the display panel can be controlled to input
  • the data voltage corresponding to 192 gray scale values is used to display the above gray scale picture.
  • ga1 represents the signal loaded on the gate line GA1
  • ga2 represents the signal loaded on the gate line GA2
  • ga3 represents the signal loaded on the gate line GA3,
  • ga4 represents the signal loaded on the gate line GA4,
  • ga5 represents the signal loaded on the gate line GA5,
  • ga6 represents the signal loaded on the gate line GA6.
  • Vda2 represents the data voltage loaded on the data line DA2
  • Vda3 represents the data voltage loaded on the data line DA3.
  • the high level of the signals ga1 - ga6 can be used as a gate turn-on signal to control the transistors in the sub-pixels to be turned on.
  • the signal ga2 on the gate line GA2 outputs a high-level gate-on signal, and the transistor in the red sub-pixel R21 is turned on.
  • the data voltage V01 is simultaneously input into the red sub-pixel R21 to precharge the red sub-pixel R21.
  • the data line DA3 connected to the blue sub-pixel B11 is loaded with the data voltage V01 corresponding to 192 gray scale values, so that the blue sub-pixel B11 inputs the data voltage V01.
  • the signal ga2 on the gate line GA2 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G21 is turned on.
  • the data voltage V01 is simultaneously input into the green sub-pixel G21 to precharge the green sub-pixel G21.
  • the data line DA2 connected to the red sub-pixel R21 is loaded with the data voltage V01 corresponding to 192 gray scale values, so that the red sub-pixel R21 is charged with the data voltage V01.
  • the signal ga3 on the gate line GA3 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G31 is turned on.
  • the data voltage V01 is simultaneously input into the green sub-pixel G31 to precharge the green sub-pixel G31.
  • the data line DA3 connected to the green sub-pixel G21 is loaded with the data voltage V01 corresponding to 192 gray scale values, so that the green sub-pixel G21 inputs the data voltage V01 .
  • the signal ga3 on the gate line GA3 outputs a high-level gate-on signal, and the transistor in the blue sub-pixel B31 is turned on.
  • the data voltage V01 is simultaneously input into the blue sub-pixel B31 to precharge the blue sub-pixel B31.
  • the data line DA2 connected to the green sub-pixel G31 is loaded with the data voltage V01 corresponding to 192 grayscale values, so that the green sub-pixel G31 is charged with the data voltage V01 .
  • the signal ga4 on the gate line GA4 outputs a high-level gate-on signal, and the transistor in the red sub-pixel R41 is turned on.
  • the data voltage V01 is simultaneously input into the red sub-pixel R41 to precharge the red sub-pixel R41.
  • the data line DA3 connected to the blue sub-pixel B31 is loaded with the data voltage V01 corresponding to 192 grayscale values, so that the blue sub-pixel B31 is charged with the data voltage V01 .
  • the signal ga4 on the gate line GA4 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G41 is turned on.
  • the data voltage V01 is simultaneously input into the green sub-pixel G41 to precharge the green sub-pixel G41.
  • the data line DA2 connected to the red sub-pixel R41 is loaded with the data voltage V01 corresponding to 192 gray scale values, so that the red sub-pixel R41 is charged with the data voltage V01.
  • the signal ga5 on the gate line GA5 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G51 is turned on.
  • the data voltage V01 is simultaneously input into the green sub-pixel G51 to precharge the green sub-pixel G51.
  • the data line DA3 connected to the green sub-pixel G41 is loaded with the data voltage V01 corresponding to 192 grayscale values, so that the green sub-pixel G41 inputs the data voltage V01.
  • the signal ga5 on the gate line GA5 outputs a high-level gate-on signal, and the transistor in the blue sub-pixel B51 is turned on.
  • the data voltage V01 is simultaneously input into the blue sub-pixel B51 to precharge the blue sub-pixel B51.
  • the data line DA2 connected to the green sub-pixel G51 is loaded with the data voltage V01 corresponding to 192 gray scale values, so that the green sub-pixel G51 is charged with the data voltage V01.
  • the signal ga6 on the gate line GA6 outputs a high-level gate-on signal, and the transistor in the red sub-pixel R61 is turned on.
  • the data voltage V01 is simultaneously input into the red sub-pixel R51 to precharge the red sub-pixel R51.
  • the data voltage V01 corresponding to 192 grayscale values is applied to the data line DA3 connected to the blue sub-pixel B51, so that the blue sub-pixel B51 is charged with the data voltage V01 .
  • the signal ga6 on the gate line GA6 outputs a high-level gate-on signal, and the transistor in the green sub-pixel G61 is turned on.
  • the data voltage V01 is simultaneously input into the green sub-pixel G61 to precharge the green sub-pixel G61.
  • the data line DA2 connected to the red sub-pixel R61 is loaded with the data voltage V01 corresponding to 192 grayscale values, so that the red sub-pixel R61 is charged with the data voltage V01, and Precharge the next subpixel.
  • the data line DA3 connected to the green sub-pixel G61 is loaded with the data voltage V01 corresponding to 192 grayscale values, so that the green sub-pixel G61 inputs the data voltage V01, and The next subpixel is precharged.
  • the implementation manners of the remaining sub-pixels are deduced in turn until the sub-pixels in the entire display panel are completely charged with the data voltage, which will not be repeated here.
  • the green sub-pixel G31 is changed from the pre-charged V02 to the data voltage V01, and the green sub-pixel G21 is pre-charged V01 of V01 changes to data voltage V02, so that there is a charge difference between the green sub-pixel G21 and the green sub-pixel G31.
  • the red sub-pixel connected to the data line DA4 There is also a charging difference in the red sub-pixel connected to the data line DA4. The rest are the same, and so on, and will not be repeated here. Due to the difference in charging between the sub-pixels, it will lead to poor fine lines on the screen of the display panel, resulting in poor display of the display panel, that is, the charging rate Mura caused by the uneven charging rate.
  • overdrive (Over Drive, OD) technology can be used to compensate different sub-pixels.
  • the grayscale value of the upper row of subpixels is 0 and the grayscale value of the next row of subpixels is 192
  • the grayscale value of the next row of subpixels can be changed from 192 to 210 by using OD technology, that is, green
  • the sub-pixel G21 changes from the precharged V02 to the data voltage V03 corresponding to the gray scale value 210, so as to improve the charging rate of the display panel.
  • an OD compensation table can be obtained.
  • the panel can be divided into multiple partitions.
  • the compensation gains (ie Gain values) of different partitions are different, so that a partition can be obtained.
  • Gain value table In this way, the display screen of the display panel can be controlled according to the obtained OD compensation table and the partition Gain value table (that is, the De-Mura method).
  • the charging rate Mura is generally more serious in the heavy load screen, although the above-mentioned De-Mura method can be used to improve the charging rate Mura problem in the heavy load screen, but there is almost no charge in other screens (such as the grayscale screen above)
  • the rate Mura problem that is, it is less likely to be affected by the charge rate Mura, but it will be affected by the regular Mura on the image quality.
  • the above-mentioned De-Mura method will lead to the overcompensation problem in the grayscale screen, so the above-mentioned De-Mura method cannot effectively improve the Mura problem caused by the charging rate.
  • an embodiment of the present disclosure provides a display panel driving method, which predetermines a target compensation lookup table formed according to the target compensation value obtained from the set gray scale picture displayed on the display panel and the set heavy load picture, so that the After obtaining the grayscale value of each subpixel in the current row and the grayscale value of each subpixel in the previous row, the grayscale value of each subpixel in the current row, the grayscale value of each subpixel in the previous row, and The target compensation value in the pre-determined target compensation lookup table determines the target gray scale value corresponding to each sub-pixel in the current row, so that the target gray scale value is consistent with the conventional Mura and Mura when the display panel displays the set gray scale picture
  • the charging rate Mura is related when the setting reload screen is displayed.
  • the data voltage is input to the data line in the display panel, so that each sub-pixel in the current row is charged with the corresponding data voltage to display the picture, and the conventional Mura can be improved at the same time. And the problem of image quality impact brought by charging rate Mura.
  • embodiments of the present disclosure provide some driving methods of display panels, which may include the following steps:
  • the acquired grayscale value of each subpixel in the current row may be the original grayscale value of each subpixel in the current row.
  • the original display data of each sub-pixel in the current row may be acquired, and the original display data includes a digital voltage format corresponding to each sub-pixel in the current row and carrying a data voltage of a corresponding grayscale value.
  • the gray scale value corresponding to the data voltage is the original gray scale value. In this way, the original gray scale value of each sub-pixel in the current row can be determined according to the original display data of each sub-pixel in the current row.
  • the acquired gray scale value of each sub-pixel in the previous row may be the original gray scale value of each sub-pixel in the previous row.
  • the original display data of each sub-pixel in the previous row may be acquired, and the original display data includes a digital voltage format corresponding to each sub-pixel in the previous row and carrying a data voltage of a corresponding gray scale value.
  • the gray scale value corresponding to the data voltage is the original gray scale value. In this way, the original gray scale value of each sub-pixel in the previous row can be determined according to the original display data of each sub-pixel in the previous row.
  • the target compensation value is obtained according to the setting gray scale image and the setting reloading image displayed on the display panel.
  • the gray scale setting picture may be a picture displayed when the red sub-pixels, the green sub-pixels and the blue sub-pixels in the display panel are all charged with the data voltage of the same gray scale value.
  • the gray scale setting picture may be a picture displayed when the red sub-pixels, the green sub-pixels and the blue sub-pixels in the display panel are all charged with the data voltage of 192 gray scale values.
  • the gray scale setting picture may be a picture displayed when the red sub-pixels, the green sub-pixels and the blue sub-pixels in the display panel are all charged with the data voltage of 127 gray scale values.
  • the setting of the reloading screen may be that the gray-scale difference between the gray-scale value corresponding to the pre-charged data voltage of the sub-pixel in the display panel and the gray-scale value corresponding to the data voltage to be charged is relatively large (for example, Take 8bit as an example, the screen displayed when the grayscale difference is above 63).
  • the overloaded screen can be set to be the screen displayed when the gray scale values of two adjacent lines have a large difference.
  • the overloaded screen can be set to have a gray scale value difference of 127 gray between two adjacent lines.
  • the setting of the reloading screen may be that the subpixels in the first row of the display panel correspond to a grayscale value of 0, the subpixels in the second row correspond to a grayscale value of 192, the subpixels in the third row correspond to a grayscale value of 0, and the subpixels in the fourth row correspond to a grayscale value of 0.
  • the sub-pixels correspond to a grayscale value of 192
  • the sub-pixels in the fifth row correspond to a grayscale value of 0
  • the sub-pixels in the sixth row correspond to a grayscale value of 192 to display the formed overloaded screen.
  • the setting of the gray scale image and the setting of the reloading image may also be determined according to actual application requirements, which are not limited herein.
  • the display device may also include flash memory.
  • flash memory In this way, a pre-determined target compensation lookup table can be stored through a flash memory (Flash).
  • 120 represents the source drive circuit
  • 12 represents the printed circuit board (Printed Circuit Board, PCB)
  • 13 represents the flexible circuit board (Flexible Printed Circuit, FPC)
  • 14 represents the timing circuit board where the timing controller is located.
  • 300 stands for flash memory.
  • the flash memory 300 can be arranged on a printed circuit board 12, and a timing controller can be arranged on the timing circuit board, which can reduce integration difficulty.
  • Two timing controllers can also be set on the timing circuit board to improve the driving capability and computing capability, which is beneficial for high refresh rates (such as 120Hz, 240Hz etc.) in the display panel.
  • the timing controller 200 may obtain the target compensation lookup table from the flash memory 300 when powered on.
  • the flash memory of the timing controller 200 obtains and stores the target compensation lookup table from the flash memory 300 .
  • the stored target compensation lookup table can be directly called from the flash memory of the timing controller 200 .
  • the target compensation lookup table may include: a plurality of different first grayscale values, a plurality of different second grayscale values, and any first grayscale value and any second grayscale value corresponding to Target compensation value.
  • the target compensation lookup table has corresponding grayscale bits, that is, the first grayscale value, the second grayscale value, and the target lookup grayscale value in the target compensation lookup table have corresponding grayscale bits.
  • the grayscale digits corresponding to the target compensation lookup table is 8 bits
  • the grayscale digits corresponding to the first grayscale value, the second grayscale value, and the target search grayscale value can be 8 bits, for example, in the target compensation lookup table
  • the first gray-scale value of the 8-bit may be all gray-scale values of 0-255 gray-scale values
  • the second gray-scale value may be all gray-scale values of 0-255 gray-scale values of 8-bit.
  • the first grayscale value in the target compensation lookup table may be a part of the grayscale values of 0 to 255 in 8bit
  • the second grayscale value may be a part of the grayscale values of 0 to 255 in 8bit. grayscale value.
  • FIG. 9 schematically shows some target compensation lookup tables in the embodiments of the present disclosure.
  • the target compensation lookup table includes part of the first grayscale value and part of the second grayscale value in 8bit, and these first grayscale values The target compensation value corresponding to the scale value and the second gray scale value.
  • the numerical values (such as 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, 255) in the first row in Fig.
  • the values in the first column represent the second gray scale value
  • the remaining values represent the target compensation value.
  • the specific numerical values of the grayscale values shown in FIG. 9 are only for illustration. In practical applications, it may be determined according to requirements of practical applications, and no limitation is made here.
  • the first grayscale value may correspond to the grayscale value of each sub-pixel in the previous row
  • the second grayscale value may correspond to the grayscale value of each sub-pixel in the current row.
  • step S200 determine the current The target gray scale value corresponding to each sub-pixel in the row may include: from the target compensation lookup table, the target corresponding to the gray scale value of the sub-pixel in the current row connected to the same data line and the gray-scale value of the sub-pixel in the previous row may be determined. compensation value. After adding the target compensation value to the original grayscale value of the subpixels in the current row connected with the same data line, it is determined as the target grayscale value of the subpixels in the current row connected with the same data line. For example, as shown in FIG.
  • the green sub-pixel G21 connected to the data line DA3 as the sub-pixel in the previous row, and the green sub-pixel G21 connected to the data line DA3 as the sub-pixel in the current row. If the blue sub-pixel B11 corresponds to 0
  • the green sub-pixel G21 corresponds to a gray scale value of 192
  • the corresponding target compensation value L13-1 can be determined from the target compensation lookup table shown in FIG. 9 .
  • the 192 grayscale value corresponding to the green subpixel G21 can be increased by the target compensation value L13-1 as the target grayscale value of the green subpixel G21.
  • each sub-pixel in the current row input a data voltage to the data line in the display panel, so that each sub-pixel in the current row is charged with the corresponding data voltage.
  • the data voltage corresponding to the target gray-scale value can be input to the data line, so that the green sub-pixel G21 is charged. Enter the data voltage corresponding to the target gray scale value.
  • the rest of the sub-pixels are the same and will not be repeated here.
  • determining the target compensation value in the target compensation lookup table may include: firstly, obtaining an original compensation lookup table; wherein, the original compensation lookup table includes: multiple different first gray scale values, multiple different second grayscale values, and an original compensation value corresponding to any first grayscale value and any second grayscale value.
  • the first grayscale value in the original compensation lookup table is the same as the first grayscale value in the target compensation lookup table
  • the second grayscale value in the original compensation lookup table is the same as the second grayscale value in the target compensation lookup table.
  • the order value is the same.
  • FIG. 10 schematically shows some original compensation lookup tables in the embodiments of the present disclosure.
  • the original compensation lookup table includes part of the first grayscale value and part of the second grayscale value in 8bit, and these first grayscale values The original compensation value corresponding to the first grayscale value and the second grayscale value.
  • the numerical values (such as 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, 255) in the first row in Fig. 10 represent the first gray Level value
  • the values in the first column (such as 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, 255) represent the second gray scale value
  • the remaining values (such as S1-1 ⁇ S17-17) represent the original compensation value.
  • the specific numerical values of the grayscale values shown in FIG. 10 are only for illustration. In practical applications, it may be determined according to requirements of practical applications, and no limitation is made here.
  • the target compensation value in the target compensation lookup table can be determined according to the predetermined compensation gain and the original compensation value in the original compensation lookup table.
  • the original compensation value S2-1 in the original compensation lookup table can be combined with the predetermined compensation gain to obtain the target compensation value L2-1 in the target compensation lookup table. 1.
  • the original compensation value S4-5 in the original compensation lookup table and the predetermined compensation gain can be combined to obtain the target compensation value L4-5 in the target compensation lookup table. The rest are deduced in turn, and will not be repeated here.
  • the target gray scale value can be compared with the conventional Mura when the display panel displays the set gray scale picture and the setting reload picture when the display panel is displayed.
  • the charging rate Mura when loading the screen is related.
  • Adopting Dual-Gate or Tri-Gate design on large-size high-resolution display panels can reduce cost by reducing the number of source drive circuits.
  • the data line is connected to the source driving circuit through the fan-out line of the fan-out area. Due to the difference in the length of the fan-out line at the middle of the corresponding source drive circuit and the fan-out line at both ends of the corresponding source drive circuit, there is a difference in the resistance of the fan-out line connected to the source drive circuit, which also causes the corresponding source drive circuit.
  • the sub-pixels in the middle and the sub-pixels at both ends of the corresponding source driving circuit also have a difference in charging rate, which is expressed as a charging rate Mura.
  • a compensation resistor can be added in the source drive circuit.
  • the compensation area may be divided according to the source driving circuit.
  • the timing controller may divide the display area into multiple initial partitions along the row direction of the sub-pixels according to the area where the data lines connected to the source driving circuit are located.
  • one source driving circuit corresponds to at least one initial partition. Afterwards, each initial partition is divided into a plurality of compensation regions along the column direction of the sub-pixels. Exemplarily, the number of initial partitions corresponding to each source driving circuit is the same. For example, one source driving circuit may correspond to one initial partition, one source driving circuit may correspond to two initial partitions, or one source driving circuit may correspond to three initial partitions. Of course, in practical applications, the number of initial partitions corresponding to one source driving circuit can be determined according to the requirements of practical applications, which is not limited here.
  • each source driving circuit corresponds to two initial partitions.
  • One source driving circuit corresponds to the initial partitions CS1 and CS2, and the other source driving circuit corresponds to the initial partitions CS3 and CS4.
  • the initial sub-section CS1 is divided into compensation areas QB- 1 , QB- 5 , QB- 9 , and QB- 13 along the column direction of the sub-pixels.
  • the initial sub-section CS2 is divided into compensation areas QB- 2 , QB- 6 , QB- 10 , and QB- 14 along the column direction of the sub-pixels.
  • the initial sub-section CS3 is divided into compensation areas QB- 3 , QB- 7 , QB- 11 , and QB- 15 along the column direction of the sub-pixels.
  • the initial sub-section CS4 is divided into compensation areas QB-4, QB-8, QB-12, and QB-16 along the column direction of the sub-pixels.
  • the display area of the display panel may also be directly divided equally so as to divide the display area of the display panel into multiple compensation areas.
  • the manner of dividing the compensation area may also be determined according to the requirements of practical applications, which is not limited here.
  • a compensation area may correspond to a target compensation lookup table, a compensation gain, and an original compensation lookup table.
  • determining the target compensation value in the target compensation look-up table may include: obtaining the original compensation look-up table corresponding to the compensation area, according to the predetermined compensation gain corresponding to the compensation area and the original compensation value in the original compensation look-up table , to determine the target compensation value in the target compensation lookup table corresponding to the compensation area.
  • the display area of the display panel can be evenly divided into 4*4 compensation areas QB- 1 -QB- 16 .
  • Compensation area QB-1 corresponds to a target compensation lookup table, a compensation gain and an original compensation lookup table
  • the compensation area QB can be determined according to the original compensation value and compensation gain in the original compensation lookup table corresponding to compensation area QB-1 -1 corresponds to the target compensation value in the target compensation lookup table.
  • the compensation area QB-2 corresponds to a target compensation lookup table, a compensation gain and an original compensation lookup table, then the compensation can be determined according to the original compensation value and compensation gain in the original compensation lookup table corresponding to the compensation area QB-2 Zone QB-2 corresponds to the target compensation value in the target compensation lookup table. The rest are deduced in turn, and will not be repeated here.
  • determining the compensation gain corresponding to each compensation area may include: firstly, controlling the display panel to display an overload setting image, and collecting an overload detection image when the display panel displays the overload setting image. According to the brightness of the overload detection image in each compensation area, the overload detection compensation value corresponding to each compensation area is determined. And, control the display panel to display the gray scale setting picture, and collect the gray scale detection image when the display panel displays the gray scale setting picture. According to the brightness of the gray-scale detection image in each compensation area, the gray-scale detection compensation value corresponding to each compensation area is determined. In this way, the compensation gain corresponding to each compensation area can be determined according to the gray scale detection compensation value and the heavy load detection compensation value corresponding to each compensation area.
  • Gi1_a represents the compensation gain corresponding to the a-th compensation area
  • Dc1_a represents the overload detection compensation value corresponding to the a-th compensation area
  • Dn1_a represents the gray-scale detection compensation value corresponding to the a-th compensation area
  • Ds represents the reference value
  • a is an integer greater than 0.
  • Dc1_1 represents the overload detection compensation value corresponding to the first compensation area QB-1
  • Dc1_2 represents the overload detection compensation value corresponding to the second compensation area QB-2
  • Dc1_3 represents the overload detection compensation value corresponding to the second compensation area QB-2
  • the overload detection compensation values corresponding to the three compensation areas QB-3, ... Dc1_16 represent the overload detection compensation values corresponding to the 16th compensation area QB-16.
  • the overload detection compensation value Dc1_1 can be determined according to the brightness of the overload detection image in the first compensation area QB-1.
  • the overload detection compensation value Dc1_2 can be determined according to the brightness of the overload detection image in the second compensation area QB-2.
  • the overload detection compensation value Dc1_3 can be determined according to the brightness of the overload detection image in the third compensation area QB-3.
  • the overload detection compensation value Dc1_16 can be determined according to the brightness of the overload detection image in the sixteenth compensation area QB-16.
  • Dn1_1 represents the gray scale detection compensation value corresponding to the first compensation area QB-1
  • Dn1_2 represents the gray scale detection compensation value corresponding to the second compensation area QB-2
  • Dn1_3 represents the gray scale detection compensation value corresponding to the second compensation area QB-2
  • the gray scale detection compensation values corresponding to the three compensation areas QB-3, ... Dn1_16 represent the gray scale detection compensation values corresponding to the 16th compensation area QB-16.
  • the gray-scale detection compensation value Dn1_1 can be determined according to the brightness of the gray-scale detection image in the first compensation area QB-1.
  • the gray-scale detection compensation value Dn1_2 can be determined according to the brightness of the gray-scale detection image in the second compensation area QB-2.
  • the gray-scale detection compensation value Dn1_3 can be determined according to the brightness of the gray-scale detection image in the third compensation area QB-3.
  • ...the gray-scale detection compensation value Dn1_16 can be determined according to the brightness of the gray-scale detection image in the sixteenth compensation area QB-16.
  • Gi1_1 represents the compensation gain corresponding to the first compensation area QB-1
  • Gi1_2 represents the compensation gain corresponding to the second compensation area QB-2
  • Gi1_3 represents the third compensation area QB-
  • ...Gi1_16 represents the compensation gain corresponding to the 16th compensation zone QB-16.
  • Gi1_1 1+(Dc1_1-Dn1_1)/Ds
  • Gi1_2 1+(Dc1_2-Dn1_2)/Ds
  • Gi1_3 1+(Dc1_3-Dn1_3)/Ds
  • ...Gi1_16 1+(Dc1_16-Dn1_16)/ Ds.
  • the reference value may be a value obtained according to experience, or the reference value may also be one of the grayscale detection compensation values.
  • the gray-scale detection compensation value corresponding to the compensation area without conventional mura in the gray-scale detection map can be used as the reference value.
  • Dn1_3 can be used as the reference value.
  • LMD1_a represents the target compensation value in the target compensation lookup table corresponding to the a-th compensation area
  • LYD1_a represents the original compensation value in the original compensation look-up table corresponding to the a-th compensation area.
  • Fig. 9 is taken as the target compensation lookup table corresponding to the first compensation area QB-1
  • the embodiments of the present disclosure provide some other driving methods of the display panel, which are modified with respect to the implementation manners in the above-mentioned embodiments. The following only describes the differences between this embodiment and the above-mentioned embodiments, and the similarities will not be repeated here.
  • Gi2_a represents the compensation gain corresponding to the a-th compensation area
  • Dc2_a represents the overload detection compensation value corresponding to the a-th compensation area
  • Dn2_a represents the gray-scale detection compensation value corresponding to the a-th compensation area
  • a is an integer greater than 0 .
  • Dc2_1 represents the overload detection compensation value corresponding to the first compensation area QB-1
  • Dc2_2 represents the overload detection compensation value corresponding to the second compensation area QB-2
  • Dc2_3 represents the overload detection compensation value corresponding to the second compensation area QB-2
  • the overload detection compensation values corresponding to the 3 compensation areas QB-3, ... Dc2_16 represents the overload detection compensation values corresponding to the 16th compensation area QB-16.
  • the overload detection compensation value Dc2_1 can be determined according to the brightness of the overload detection image in the first compensation area QB-1.
  • the overload detection compensation value Dc2_2 can be determined according to the brightness of the overload detection image in the second compensation area QB-2.
  • the overload detection compensation value Dc2_3 can be determined according to the brightness of the overload detection image in the third compensation area QB-3.
  • the overload detection compensation value Dc2_16 can be determined according to the brightness of the overload detection image in the sixteenth compensation area QB-16.
  • Dn2_1 represents the gray scale detection compensation value corresponding to the first compensation area QB-1
  • Dn2_2 represents the gray scale detection compensation value corresponding to the second compensation area QB-2
  • Dn2_3 represents the gray scale detection compensation value corresponding to the second compensation area QB-2
  • the gray scale detection compensation values corresponding to the three compensation areas QB-3, ... Dn2_16 represent the gray scale detection compensation values corresponding to the 16th compensation area QB-16.
  • the gray-scale detection compensation value Dn2_1 can be determined according to the brightness of the gray-scale detection image in the first compensation area QB-1.
  • the gray-scale detection compensation value Dn2_2 can be determined according to the brightness of the gray-scale detection image in the second compensation area QB-2.
  • the gray scale detection compensation value Dn2_3 can be determined according to the brightness of the gray scale detection image in the third compensation area QB-3.
  • ...the gray-scale detection compensation value Dn2_16 can be determined according to the brightness of the gray-scale detection image in the sixteenth compensation area QB-16.
  • Gi2_1 represents the compensation gain corresponding to the first compensation area QB-1
  • Gi2_2 represents the compensation gain corresponding to the second compensation area QB-2
  • Gi2_3 represents the third compensation area QB-
  • ...Gi2_16 represents the compensation gain corresponding to the 16th compensation area QB-16.
  • LMD2_a represents the target compensation value in the target compensation lookup table corresponding to the a-th compensation area
  • LYD2_a represents the original compensation value in the original compensation look-up table corresponding to the a-th compensation area
  • Gi2_a represents the compensation value corresponding to the a-th compensation area gain.
  • Fig. 9 is taken as the target compensation lookup table corresponding to the first compensation area QB-1
  • Embodiments of the present disclosure provide some methods for driving display panels, which are modified for the implementation manners in the above embodiments. The following only describes the differences between this embodiment and the above-mentioned embodiments, and the similarities will not be repeated here.
  • the grayscale value of each subpixel in the current row is the original grayscale value of each subpixel in the current row
  • the grayscale value of each subpixel in the previous row is the target value of each subpixel in the previous row.
  • grayscale value may be the original grayscale value of each subpixel in the current row.
  • the original display data of each sub-pixel in the current row may be acquired, and the original display data includes a digital voltage format corresponding to each sub-pixel in the current row and carrying a data voltage of a corresponding grayscale value.
  • the gray scale value corresponding to the data voltage is the original gray scale value. In this way, the original gray scale value of each sub-pixel in the current row can be determined according to the original display data of each sub-pixel in the current row.
  • the target grayscale value corresponding to the data voltage charged into the subpixel is different from the original grayscale value corresponding to the subpixel.
  • the target grayscale value corresponding to the data voltage charged in each subpixel in the previous row it can be stored at the same time, so that when determining the target grayscale value corresponding to the data voltage charged in each subpixel in the current row Get it.
  • the acquired gray scale value of each sub-pixel in the previous row may be the target gray scale value of each sub-pixel in the previous row.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions
  • the device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

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Abstract

显示面板的驱动方法及显示装置，包括：获取当前行中各子像素的灰阶值以及上一行中各子像素的灰阶值(S100)；根据当前行中各子像素的灰阶值、上一行中各子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中各子像素对应的目标灰阶值(S200)；其中，目标补偿值根据显示面板显示的设定灰阶画面和设定重载画面得到；根据当前行中各子像素的目标灰阶值，对显示面板中的数据线输入数据电压，使当前行中各子像素充入相应的数据电压(S300)。

Description

显示面板的驱动方法及显示装置 技术领域
本公开涉及显示技术领域，特别涉及显示面板的驱动方法及显示装置。
背景技术
在诸如液晶显示器(Liquid Crystal Display，LCD)和有机发光二极管(Organic Light-Emitting Diode，OLED)显示器中，一般包括多个像素单元。每个像素单元可以包括：红色子像素、绿色子像素以及蓝色子像素。通过控制每个子像素对应的亮度，从而混合出所需显示的色彩来显示彩色图像。
发明内容
本公开实施例提供的显示面板的驱动方法，包括：
获取当前行中各子像素的灰阶值以及上一行中各子像素的灰阶值；
根据当前行中各所述子像素的灰阶值、上一行中各所述子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中各所述子像素对应的目标灰阶值；其中，所述目标补偿值根据所述显示面板显示的设定灰阶画面和设定重载画面得到；
根据所述当前行中各所述子像素的目标灰阶值，对所述显示面板中的数据线输入数据电压，使所述当前行中各所述子像素充入相应的数据电压。
在一些示例中，所述目标补偿查找表包括：多个不同的第一灰阶值、多个不同的第二灰阶值、以及与任一所述第一灰阶值和任一所述第二灰阶值对应的目标补偿值；
所述确定的目标补偿查找表中的目标补偿值，包括：
获取原始补偿查找表；其中，所述原始补偿查找表包括：多个不同的第一灰阶值、多个不同的第二灰阶值、以及与任一所述第一灰阶值和任一所述第二灰阶值对应的原始补偿值；
根据预先确定的补偿增益和所述原始补偿查找表中的原始补偿值，确定所述目标补偿查找表中的目标补偿值；其中，所述补偿增益根据所述显示面板显示的设定灰阶画面和设定重载画面得到。
在一些示例中，所述显示面板中的显示区具有预先确定的多个补偿区，一个所述补偿区对应一个所述目标补偿查找表和一个所述补偿增益；
针对每一个所述补偿区，确定所述目标补偿查找表中的目标补偿值，包括：
获取所述补偿区对应的原始补偿查找表；
根据所述补偿区对应的预先确定的补偿增益和所述原始补偿查找表中的原始补偿值，确定所述补偿区对应的所述目标补偿查找表中的目标补偿值。
在一些示例中，确定各所述补偿区对应的补偿增益，包括：
采集所述显示面板显示所述设定重载画面时的重载检测图像，和显示所述设定灰阶画面时的灰阶检测图像；
根据所述重载检测图像在各所述补偿区中的亮度，确定各所述补偿区对应的重载检测补偿值，以及根据所述灰阶检测图像在各所述补偿区中的亮度，确定各所述补偿区对应的灰阶检测补偿值；
根据各所述补偿区对应的所述灰阶检测补偿值和所述重载检测补偿值，确定各所述补偿区对应的所述补偿增益。
在一些示例中，采用如下公式，根据各所述补偿区对应的所述灰阶检测补偿值和所述重载检测补偿值，确定各所述补偿区对应的所述补偿增益；
Gi1_a＝1+(Dc1_a-Dn1_a)/Ds；
其中，Gi1_a代表第a个补偿区对应的所述补偿增益，Dc1_a代表所述第a个补偿区对应的所述重载检测补偿值，Dn1_a代表所述第a个补偿区对应的所述灰阶检测补偿值，Ds代表基准值，a为大于0的整数。
在一些示例中，所述基准值为所述灰阶检测补偿值中的一个。
在一些示例中，采用如下公式，确定所述补偿区对应的所述目标补偿查找表中的目标补偿值；
LMD1_a＝LYD1_a*Gi1_a；
其中，LMD1_a代表所述第a个补偿区对应的目标补偿查找表中的所述目标补偿值，LYD1_a代表所述第a个补偿区对应的原始补偿查找表中的所述原始补偿值。
在一些示例中，采用如下公式，根据各所述补偿区对应的所述灰阶检测补偿值和所述重载检测补偿值，确定各所述补偿区对应的所述补偿增益；
Gi2_a＝Dc2_a-Dn2_a；
其中，Gi2_a代表第a个补偿区对应的所述补偿增益，Dc2_a代表所述第a个补偿区对应的所述重载检测补偿值，Dn2_a代表所述第a个补偿区对应的所述灰阶检测补偿值，a为大于0的整数。
在一些示例中，采用如下公式，确定所述补偿区对应的所述目标补偿查找表中的目标补偿值；
LMD2_a＝LYD2_a+Gi2_a；
其中，LMD2_a代表第a个补偿区对应的目标补偿查找表中的所述目标补偿值，LYD2_a代表所述第a个补偿区对应的原始补偿查找表中的所述原始补偿值，Gi2_a代表所述第a个补偿区对应的所述补偿增益。
在一些示例中，所述根据当前行中各所述子像素的灰阶值、上一行中各所述子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中各所述子像素对应的目标灰阶值，包括：
从所述目标补偿查找表中，确定同一条数据线连接的所述当前行子像素的灰阶值和所述上一行子像素的灰阶值对应的目标补偿值；
将所述同一条数据线连接的所述当前行子像素的原始灰阶值增加所述目标补偿值后，确定为所述同一条数据线连接的中所述当前行子像素的目标灰阶值。
在一些示例中，所述当前行中各所述子像素的灰阶值为当前行中各所述子像素的原始灰阶值，所述上一行中各所述子像素的灰阶值为上一行中各所述子像素的原始灰阶值。
在一些示例中，所述当前行中各所述子像素的灰阶值为当前行中各所述子像素的原始灰阶值，所述上一行中各所述子像素的灰阶值为上一行中各所述子像素的目标灰阶值。
本公开实施例提供的显示装置，包括：
显示面板；
时序控制器，被配置为获取当前行中各子像素的灰阶值以及上一行中各子像素的灰阶值；根据当前行中各所述子像素的灰阶值、上一行中各所述子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中各所述子像素对应的目标灰阶值；根据所述当前行中各所述子像素的目标灰阶值，对所述显示面板中的数据线输入数据电压，使所述当前行中各所述子像素充入相应的数据电压；其中，所述目标补偿值根据所述显示面板显示的设定灰阶画面和设定重载画面得到。
在一些示例中，所述显示装置还包括闪存；
所述闪存被配置为存储预先确定的目标补偿查找表；
所述时序控制器还被配置为在上电时，从所述闪存中获取所述目标补偿查找表。
在一些示例中，所述显示面板包括多个源极驱动电路；不同所述源极驱动电路连接不同的数据线；
所述时序控制器还被配置为：
根据所述源极驱动电路连接的数据线所在的区域，沿子像素的行方向将显示区划分为多个初始分区；其中，一个所述源极驱动电路对应至少一个所述初始分区；
沿子像素的列方向将每个所述初始分区划分为多个补偿区。
附图说明
图1a为本公开实施例中的显示装置的一些结构示意图；
图1b为本公开实施例中的显示装置的另一些结构示意图；
图2为本公开实施例中的显示面板的一些结构示意图；
图3为本公开实施例中的一些信号时序图；
图4为本公开实施例中的另一些信号时序图；
图5为本公开实施例中的显示面板的另一些结构示意图；
图6为本公开实施例中的又一些信号时序图；
图7为本公开实施例中的又一些信号时序图；
图8为本公开实施例中的驱动方法的一些流程图；
图9为本公开实施例中的一些目标补偿查找表的示意图；
图10为本公开实施例中的一些原始补偿查找表的示意图；
图11为本公开实施例中的补偿区的一些示意图；
图12为本公开实施例中的补偿区的另一些示意图；
图13为本公开实施例中的补偿区的又一些示意图；
图14为本公开实施例中的补偿区的又一些示意图；
图15为本公开实施例中的补偿区的又一些示意图；
图16为本公开实施例中的补偿区的又一些示意图；
图17为本公开实施例中的补偿区的又一些示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。并且在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互组合。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不 同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。
需要注意的是，附图中各图形的尺寸和形状不反映真实比例，目的只是示意说明本公开内容。并且自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。
参见图1a、图1b以及图2所示，显示装置可以包括显示面板100以及时序控制器200。其中，显示面板100可以包括多个阵列排布的像素单元，多条栅线GA(例如，GA1、GA2、GA3、GA4、GA5、GA6)、多条数据线DA(例如，DA1、DA2、DA3、DA4、DA5、DA6、DA7)、栅极驱动电路110以及源极驱动电路120。栅极驱动电路110分别与栅线GA(例如，GA1、GA2、GA3、GA4、GA5、GA6)耦接，源极驱动电路120分别与数据线DA(例如，DA1、DA2、DA3、DA4、DA5、DA6、DA7)耦接。其中，时序控制器200可以向栅极驱动电路110输入控制信号，从而使栅极驱动电路110向栅线GA(例如，GA1、GA2、GA3、GA4、GA5、GA6)输入信号，以驱动栅线GA(例如，GA1、GA2、GA3、GA4、GA5、GA6)。时序控制器200向源极驱动电路120输入显示数据，可以使源极驱动电路120根据显示数据向数据线输入数据电压，从而对子像素充电，使子像素输入相应的数据电压，实现画面显示功能。示例性地，源极驱动电路120可以设置为多个，不同源极驱动电路连接不同的数据线。例如，源极驱动电路120可以设置为2个，其中一个源极驱动电路120连接一半数量的数据线，另一个源极驱动电路120连接另一半数量的数据线。当然，源极驱动电路120也可以设置3个、4个、或更多个，其可以根据实际应用的需求进行设计确定，在此不作限定。
示例性地，时序控制器可以获取当前行中各子像素的灰阶值以及上一行中各子像素的灰阶值；根据当前行中各子像素的灰阶值、上一行中各子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中 各子像素对应的目标灰阶值；根据当前行中各子像素的目标灰阶值，对显示面板中的数据线输入数据电压，使当前行中各子像素充入相应的数据电压。
示例性地，每个像素单元包括多个子像素。例如，像素单元可以包括红色子像素，绿色子像素以及蓝色子像素，这样可以通过红绿蓝进行混色，以实现彩色显示。或者，像素单元也可以包括红色子像素，绿色子像素、蓝色子像素以及白色子像素，这样可以通过红绿蓝白进行混色，以实现彩色显示。当然，在实际应用中，像素单元中的子像素的发光颜色可以根据实际应用环境来设计确定，在此不作限定。
示例性地，每个子像素中包括晶体管像素电极。其中，一行子像素对应耦接一条栅线，以一列子像素为例，该列子像素中的奇数行子像素耦接位于该列子像素左侧的数据线，偶数行子像素耦接位于该列子像素右侧的数据线。或者，该列子像素中的奇数行子像素耦接位于该列子像素右侧的数据线，偶数行子像素耦接位于该列子像素左侧的数据线。并且，晶体管的栅极与对应的栅线电连接，晶体管的源极与对应的数据线电连接，晶体管的漏极与像素电极电连接，需要说明的是，本公开像素阵列结构还可以是双栅结构，即相邻两行像素之间设置两条栅极线，此排布方式可以减少一半的数据线，即包含相邻两列像素之间有的数据线，有的相邻两列像素之间不包括数据线，具体像素排布结构和数据线，扫描线的排布方式不限定。
需要说明的是，本公开实施例中的显示面板可以为液晶显示面板、OLED显示面板等，在此不作限定。
灰阶，一般是将最暗与最亮之间的亮度变化区分为若干份，以便于进行屏幕亮度管控。例如，以显示的图像由红、绿、蓝三种颜色组成，其中每一个颜色都可以显现出不同的亮度级别，并且不同亮度层次的红、绿、蓝组合起来，可以形成不同的色彩。例如，液晶显示面板的灰阶位数为6bit，则红、绿、蓝这三种颜色分别具有64(即2 6)个灰阶，这64个灰阶值分别为0～63。液晶显示面板的灰阶位数为8bit，则红、绿、蓝这三种颜色分别具有256(即2 8)个灰阶，这256个灰阶值分别为0～255。液晶显示面板的灰阶位数为10bit， 则红、绿、蓝这三种颜色分别具有1024(即2 10)个灰阶，这1024个灰阶值分别为0～1023。液晶显示面板的灰阶位数为12bit，则红、绿、蓝这三种颜色分别具有4096(即2 12)个灰阶，这4096个灰阶值分别为0～4093。
以一个子像素为例，在该子像素的像素电极中输入的数据电压大于公共电极电压时，可以使该子像素处的液晶分子为正极性，则该子像素中的数据电压对应的极性为正极性。在子像素的像素电极中输入的数据电压小于公共电极电压时，可以使该子像素处的液晶分子为负极性，则该子像素中的数据电压对应的极性为负极性。例如，公共电极电压可以为8.3V，若在该子像素的像素电极中输入了8.3V～16V的数据电压，可以使该子像素处的液晶分子为正极性，则8.3V～16V的数据电压为对应正极性的数据电压。若在该子像素的像素电极中输入了0.6V～8.3V的数据电压，可以使该子像素处的液晶分子为负极性，则0.6V～8.3V的数据电压为对应负极性的数据电压。示例性地，以8bit的0～255灰阶为例，若在子像素的像素电极中输入16V的数据电压时，该子像素可以对应正极性的最大灰阶值的亮度。若在子像素的像素电极中输入0.6V的数据电压时，该子像素可以对应负极性的最大灰阶值的亮度。这样可以根据控制子像素对应的极性，使显示面板实现帧翻转方式、列翻转方式、行翻转方式、点翻转方式等。
在显示面板显示画面时，可能会由于一些因素产生显示不均(即Mura)的不良问题。通常，Mura类不良问题可以分成两种，一种是由于子像素的充电率不均匀引起的充电率Mura，另一种是因为制备工艺等显示面板制程上的因素引起的常规Mura。其中，常规Mura在显示面板显示所有画面时都可能会出现，而充电率Mura通常会在一些特殊画面下，由于充电率不均匀时才会显现，例如在重载画面(例如相邻两行的灰阶值相差较大时显示的画面，如以8bit为例，重载画面可以为在相邻两行的灰阶值相差127灰阶值以上时显示的画面)显示时，会出现充电率Mura的问题。
下面以像素单元包括红色子像素，绿色子像素以及蓝色子像素为例进行说明。如图2所示，红色子像素R11、绿色子像素G11、以蓝色子像素B11 为一个像素单元，红色子像素R12、绿色子像素G12、以蓝色子像素B12为一个像素单元。红色子像素R21、绿色子像素G21、以蓝色子像素B21为一个像素单元，红色子像素R22、绿色子像素G22、以蓝色子像素B22为一个像素单元。红色子像素R31、绿色子像素G31、以蓝色子像素B31为一个像素单元，红色子像素R32、绿色子像素G32、以蓝色子像素B32为一个像素单元。红色子像素R41、绿色子像素G41、以蓝色子像素B41为一个像素单元，红色子像素R42、绿色子像素G42、以蓝色子像素B42为一个像素单元。红色子像素R51、绿色子像素G51、以蓝色子像素B51为一个像素单元，红色子像素R52、绿色子像素G52、以蓝色子像素B52为一个像素单元。红色子像素R61、绿色子像素G61、以蓝色子像素B61为一个像素单元，红色子像素R62、绿色子像素G62、以蓝色子像素B62为一个像素单元。
示例性地，如图2所示，绿色子像素G11、红色子像素R21、绿色子像素G31、红色子像素R41、绿色子像素G51、红色子像素R61与数据线DA2耦接。蓝色子像素B11、绿色子像素G21、蓝色子像素B31、绿色子像素G41、蓝色子像素B51、绿色子像素G61与数据线DA3耦接。红色子像素R12、蓝色子像素B21、红色子像素R32、蓝色子像素B41、红色子像素R52、蓝色子像素B61与数据线DA4耦接。绿色子像素G12、红色子像素R22、绿色子像素G32、红色子像素R42、绿色子像素G52、红色子像素R62与数据线DA5耦接。蓝色子像素B12、绿色子像素G22、蓝色子像素B32、绿色子像素G42、蓝色子像素B52、绿色子像素G62与数据线DA6耦接。
示例性地，以第一行子像素对应0灰阶值，第二行子像素对应192灰阶值，第三行子像素对应0灰阶值，第四行子像素对应192灰阶值，第五行子像素对应0灰阶值，第六行子像素对应192灰阶值显示形成的重载画面为例，结合图2至图4所示，驱动显示面板显示该重载画面时的过程可以如下描述。ga1代表栅线GA1上加载的信号，ga2代表栅线GA2上加载的信号，ga3代表栅线GA3上加载的信号，ga4代表栅线GA4上加载的信号，ga5代表栅线GA5上加载的信号，ga6代表栅线GA6上加载的信号。Vda2代表数据线DA2 上加载的数据电压，Vda3代表数据线DA3上加载的数据电压。并且，信号ga1～ga6中的高电平可以作为栅极开启信号，以控制子像素中的晶体管导通。以一个显示帧F01、数据线DA2和DA3、数据线DA2和DA3连接的子像素为例，栅线GA1上的信号ga1输出高电平的栅极开启信号时，绿色子像素G11和蓝色子像素B11中的晶体管导通。
在信号ga1的高电平对应的T11时间段中，对绿色子像素G11连接的数据线DA2加载对应0灰阶值的数据电压V02，以使绿色子像素G11输入数据电压V02。以及，在T11时间段中，栅线GA2上的信号ga2输出高电平的栅极开启信号，红色子像素R21中的晶体管导通。数据电压V02同时输入到红色子像素R21中，以对红色子像素R21进行预充电。并且，在信号ga1的高电平对应的T11时间段中，对蓝色子像素B11连接的数据线DA3加载对应0灰阶值的数据电压V02，以使蓝色子像素B11输入数据电压V02。以及，在T11时间段中，栅线GA2上的信号ga2输出高电平的栅极开启信号，绿色子像素G21中的晶体管导通。数据电压V02同时输入到绿色子像素G21中，以对绿色子像素G21进行预充电。
以及，在信号ga2的高电平对应的T12时间段中，对红色子像素R21连接的数据线DA2加载对应192灰阶值的数据电压V01，以使红色子像素R21充入数据电压V01。以及，在T12时间段中，栅线GA3上的信号ga3输出高电平的栅极开启信号，绿色子像素G31中的晶体管导通。数据电压V01同时输入到绿色子像素G31中，以对绿色子像素G31进行预充电。并且，在信号ga2的高电平对应的T12时间段中，对绿色子像素G21连接的数据线DA3加载对应192灰阶值的数据电压V01，以使绿色子像素G21输入数据电压V01。以及，在T12时间段中，栅线GA3上的信号ga3输出高电平的栅极开启信号，蓝色子像素B31中的晶体管导通。数据电压V01同时输入到蓝色子像素B31中，以对蓝色子像素B31进行预充电。
以及，在信号ga3的高电平对应的T13时间段中，对绿色子像素G31连接的数据线DA2加载对应0灰阶值的数据电压V02，以使绿色子像素G31充 入数据电压V02。以及，在T13时间段中，栅线GA4上的信号ga4输出高电平的栅极开启信号，红色子像素R41中的晶体管导通。数据电压V02同时输入到红色子像素R41中，以对红色子像素R41进行预充电。并且，在信号ga3的高电平对应的T13时间段中，对蓝色子像素B31连接的数据线DA3加载对应0灰阶值的数据电压V02，以使蓝色子像素B31充入数据电压V02。以及，在T13时间段中，栅线GA4上的信号ga4输出高电平的栅极开启信号，绿色子像素G41中的晶体管导通。数据电压V02同时输入到绿色子像素G41中，以对绿色子像素G41进行预充电。
以及，在信号ga4的高电平对应的T14时间段中，对红色子像素R41连接的数据线DA2加载对应192灰阶值的数据电压V01，以使红色子像素R41充入数据电压V01。以及，在T14时间段中，栅线GA5上的信号ga5输出高电平的栅极开启信号，绿色子像素G51中的晶体管导通。数据电压V01同时输入到绿色子像素G51中，以对绿色子像素G51进行预充电。并且，在信号ga4的高电平对应的T14时间段中，对绿色子像素G41连接的数据线DA3加载对应192灰阶值的数据电压V01，以使绿色子像素G41输入数据电压V01。以及，在T14时间段中，栅线GA5上的信号ga5输出高电平的栅极开启信号，蓝色子像素B51中的晶体管导通。数据电压V01同时输入到蓝色子像素B51中，以对蓝色子像素B51进行预充电。
以及，在信号ga5的高电平对应的T15时间段中，对绿色子像素G51连接的数据线DA2加载对应0灰阶值的数据电压V02，以使绿色子像素G51充入数据电压V02。以及，在T15时间段中，栅线GA6上的信号ga6输出高电平的栅极开启信号，红色子像素R61中的晶体管导通。数据电压V02同时输入到红色子像素R51中，以对红色子像素R51进行预充电。并且，在信号ga5的高电平对应的T15时间段中，对蓝色子像素B51连接的数据线DA3加载对应0灰阶值的数据电压V02，以使蓝色子像素B51充入数据电压V02。以及，在T15时间段中，栅线GA6上的信号ga6输出高电平的栅极开启信号，绿色子像素G61中的晶体管导通。数据电压V02同时输入到绿色子像素G61中， 以对绿色子像素G61进行预充电。
以及，在信号ga6的高电平对应的T16时间段中，对红色子像素R61连接的数据线DA2加载对应192灰阶值的数据电压V01，以使红色子像素R61充入数据电压V01，并对下一个子像素进行预充电。并且，在信号ga6的高电平对应的T16时间段中，对绿色子像素G61连接的数据线DA3加载对应192灰阶值的数据电压V01，以使绿色子像素G61输入数据电压V01，并对下一个子像素进行预充电。其余子像素的实施方式依次类推，直至整个显示面板中的子像素完成充入数据电压，在此不作赘述。
示例性地，以红色子像素、绿色子像素以及蓝色子像素均点亮形成的灰阶画面为例，例如，可以控制显示面板中的红色子像素、绿色子像素以及蓝色子像素分别输入对应192灰阶值的数据电压，以显示上述的灰阶画面。结合图5至图7所示，驱动显示面板显示该重载画面时的过程可以如下描述。ga1代表栅线GA1上加载的信号，ga2代表栅线GA2上加载的信号，ga3代表栅线GA3上加载的信号，ga4代表栅线GA4上加载的信号，ga5代表栅线GA5上加载的信号，ga6代表栅线GA6上加载的信号。Vda2代表数据线DA2上加载的数据电压，Vda3代表数据线DA3上加载的数据电压。并且，信号ga1～ga6中的高电平可以作为栅极开启信号，以控制子像素中的晶体管导通。以一个显示帧F02、数据线DA2和DA3、数据线DA2和DA3连接的子像素为例，栅线GA1上的信号ga1输出高电平的栅极开启信号时，绿色子像素G11和蓝色子像素B11中的晶体管导通。且在信号ga1的高电平对应的T11时间段中，对绿色子像素G11连接的数据线DA2加载对应192灰阶值的数据电压V01，以使绿色子像素G11输入数据电压V01。以及，在T11时间段中，栅线GA2上的信号ga2输出高电平的栅极开启信号，红色子像素R21中的晶体管导通。数据电压V01同时输入到红色子像素R21中，以对红色子像素R21进行预充电。并且，在信号ga1的高电平对应的T11时间段中，对蓝色子像素B11连接的数据线DA3加载对应192灰阶值的数据电压V01，以使蓝色子像素B11输入数据电压V01。以及，在T11时间段中，栅线GA2上的信号ga2 输出高电平的栅极开启信号，绿色子像素G21中的晶体管导通。数据电压V01同时输入到绿色子像素G21中，以对绿色子像素G21进行预充电。
以及，在信号ga2的高电平对应的T12时间段中，对红色子像素R21连接的数据线DA2加载对应192灰阶值的数据电压V01，以使红色子像素R21充入数据电压V01。以及，在T12时间段中，栅线GA3上的信号ga3输出高电平的栅极开启信号，绿色子像素G31中的晶体管导通。数据电压V01同时输入到绿色子像素G31中，以对绿色子像素G31进行预充电。并且，在信号ga2的高电平对应的T12时间段中，对绿色子像素G21连接的数据线DA3加载对应192灰阶值的数据电压V01，以使绿色子像素G21输入数据电压V01。以及，在T12时间段中，栅线GA3上的信号ga3输出高电平的栅极开启信号，蓝色子像素B31中的晶体管导通。数据电压V01同时输入到蓝色子像素B31中，以对蓝色子像素B31进行预充电。
以及，在信号ga3的高电平对应的T13时间段中，对绿色子像素G31连接的数据线DA2加载对应192灰阶值的数据电压V01，以使绿色子像素G31充入数据电压V01。以及，在T13时间段中，栅线GA4上的信号ga4输出高电平的栅极开启信号，红色子像素R41中的晶体管导通。数据电压V01同时输入到红色子像素R41中，以对红色子像素R41进行预充电。并且，在信号ga3的高电平对应的T13时间段中，对蓝色子像素B31连接的数据线DA3加载对应192灰阶值的数据电压V01，以使蓝色子像素B31充入数据电压V01。以及，在T13时间段中，栅线GA4上的信号ga4输出高电平的栅极开启信号，绿色子像素G41中的晶体管导通。数据电压V01同时输入到绿色子像素G41中，以对绿色子像素G41进行预充电。
以及，在信号ga4的高电平对应的T14时间段中，对红色子像素R41连接的数据线DA2加载对应192灰阶值的数据电压V01，以使红色子像素R41充入数据电压V01。以及，在T14时间段中，栅线GA5上的信号ga5输出高电平的栅极开启信号，绿色子像素G51中的晶体管导通。数据电压V01同时输入到绿色子像素G51中，以对绿色子像素G51进行预充电。并且，在信号 ga4的高电平对应的T14时间段中，对绿色子像素G41连接的数据线DA3加载对应192灰阶值的数据电压V01，以使绿色子像素G41输入数据电压V01。以及，在T14时间段中，栅线GA5上的信号ga5输出高电平的栅极开启信号，蓝色子像素B51中的晶体管导通。数据电压V01同时输入到蓝色子像素B51中，以对蓝色子像素B51进行预充电。
以及，在信号ga5的高电平对应的T15时间段中，对绿色子像素G51连接的数据线DA2加载对应192灰阶值的数据电压V01，以使绿色子像素G51充入数据电压V01。以及，在T15时间段中，栅线GA6上的信号ga6输出高电平的栅极开启信号，红色子像素R61中的晶体管导通。数据电压V01同时输入到红色子像素R51中，以对红色子像素R51进行预充电。并且，在信号ga5的高电平对应的T15时间段中，对蓝色子像素B51连接的数据线DA3加载对应192灰阶值的数据电压V01，以使蓝色子像素B51充入数据电压V01。以及，在T15时间段中，栅线GA6上的信号ga6输出高电平的栅极开启信号，绿色子像素G61中的晶体管导通。数据电压V01同时输入到绿色子像素G61中，以对绿色子像素G61进行预充电。
以及，在信号ga6的高电平对应的T16时间段中，对红色子像素R61连接的数据线DA2加载对应192灰阶值的数据电压V01，以使红色子像素R61充入数据电压V01，并对下一个子像素进行预充电。并且，在信号ga6的高电平对应的T16时间段中，对绿色子像素G61连接的数据线DA3加载对应192灰阶值的数据电压V01，以使绿色子像素G61输入数据电压V01，并对下一个子像素进行预充电。其余子像素的实施方式依次类推，直至整个显示面板中的子像素完成充入数据电压，在此不作赘述。
通过上述描述可知，针对上述重载画面，以绿色子像素G21和绿色子像素G31为例，绿色子像素G31是由预充电的V02变化为数据电压V01的，而绿色子像素G21是由预充电的V01变化为数据电压V02的，这样使得绿色子像素G21和绿色子像素G31之间存在充电差异。同理，连接到数据线DA4上的红色子像素也存在充电差异。其余同理，依次类推，在此不作赘述。由 于子像素之间存在充电差异，会导致显示面板的画面出现细纹不良，造成显示面板出现显示不良的现象，即出现了由于充电率不均匀引起的充电率Mura。
为了改善充电率Mura，可以采用过驱动(Over Drive，OD)技术对不同子像素进行补偿。例如，同一列中，上一行子像素的灰阶值为0，下一行子像素的灰阶值为192时，可以采用OD技术将下一行子像素的灰阶值由192变化为210，即绿色子像素G21是由预充电的V02变化为灰阶值210对应的数据电压V03，以改善显示面板的充电率问题。基于此，可以得到一个OD补偿表，同时，考虑到显示面板不同区域的充电率存在差异，可以将面板分成多个分区，不同分区的补偿增益(即Gain值)不同，这样可以得到一张分区Gain值表。这样可以根据得到的OD补偿表和分区Gain值表(即De-Mura方法)控制显示面板显示画面。
然而，由于充电率Mura一般在重载画面下较为严重，虽然使用上述的De-Mura方法可改善重载画面下的充电率Mura问题，但由于其他画面(例如上述灰阶画面)下几乎没有充电率Mura问题，即其受充电率Mura影响画质的可能性较小，而是会受到常规Mura对画质的影响。上述的De-Mura方法会导致灰阶画面下的过补偿问题，因此上述的De-Mura方法无法有效改善由于充电率导致的Mura问题。
为了改善上述问题，本公开实施例提供了显示面板的驱动方法，预先确定了根据显示面板显示的设定灰阶画面和设定重载画面得到的目标补偿值形成的目标补偿查找表，这样在获取到当前行中各子像素的灰阶值以及上一行中各子像素的灰阶值后，可以根据当前行中各子像素的灰阶值、上一行中各子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定出当前行中各子像素对应的目标灰阶值，以使该目标灰阶值与显示面板在显示设定灰阶画面时的常规Mura和在显示设定重载画面时的充电率Mura均相关。这样在根据当前行中各子像素的目标灰阶值，对显示面板中的数据线输入数据电压，使当前行中各子像素充入相应的数据电压，以显示画面时，可以同时改善常规Mura和充电率Mura带来的画质影响的问题。
如图8所示，本公开实施例提供了一些显示面板的驱动方法，可以包括如下步骤：
S100、获取当前行中各子像素的灰阶值以及上一行中各子像素的灰阶值。
示例性地，获取到的当前行中各子像素的灰阶值可以为当前行中各子像素的原始灰阶值。例如，可以获取到当前行中各子像素的原始显示数据，该原始显示数据包括当前行中每一个子像素一一对应的携带有相应灰阶值的数据电压的数字电压形式。并且，该数据电压对应的灰阶值即为原始灰阶值。这样可以根据当前行中各子像素的原始显示数据，确定出当前行中各子像素的原始灰阶值。
示例性地，获取到的上一行中各子像素的灰阶值可以为上一行中各子像素的原始灰阶值。例如，可以获取到上一行中各子像素的原始显示数据，该原始显示数据包括上一行中每一个子像素一一对应的携带有相应灰阶值的数据电压的数字电压形式。并且，该数据电压对应的灰阶值即为原始灰阶值。这样可以根据上一行中各子像素的原始显示数据，确定出上一行中各子像素的原始灰阶值。
S200、根据当前行中各子像素的灰阶值、上一行中各子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中各子像素对应的目标灰阶值。
在本公开一些实施例中，目标补偿值是根据显示面板显示的设定灰阶画面和设定重载画面得到的。示例性地，设定灰阶画面可以是显示面板中的红色子像素、绿色子像素以及蓝色子像素均充入同一灰阶值的数据电压时显示的画面。例如，设定灰阶画面可以是显示面板中的红色子像素、绿色子像素以及蓝色子像素均充入192灰阶值的数据电压时显示的画面。或者，设定灰阶画面可以是显示面板中的红色子像素、绿色子像素以及蓝色子像素均充入127灰阶值的数据电压时显示的画面。示例性地，设定重载画面可以是显示面板中子像素的预充电数据电压对应的灰阶值和需要充入的数据电压对应的灰阶值之间的灰阶差值相差较大(例如以8bit为例，灰阶差值在63以上)时显 示的画面。例如，设定重载画面可以是相邻两行的灰阶值相差较大时显示的画面，如以8bit为例，设定重载画面可以为在相邻两行的灰阶值相差127灰阶值以上时显示的画面。示例性地，设定重载画面可以是显示面板中第一行子像素对应0灰阶值，第二行子像素对应192灰阶值，第三行子像素对应0灰阶值，第四行子像素对应192灰阶值，第五行子像素对应0灰阶值，第六行子像素对应192灰阶值显示形成的重载画面。当然，在本公开实施例中，设定灰阶画面和设定重载画面也可以根据实际应用的需求进行确定，在此不作限定。
在一些示例中，显示装置还可以包括闪存。这样可以通过闪存(Flash)存储预先确定的目标补偿查找表。示例性地，如图1b所示，示意出了时序控制器与源极驱动电路120之间的连接关系。其中，120代表源极驱动电路，12代表印刷电路板(Printed Circuit Board，PCB)，13代表柔性电路板(Flexible Printed Circuit，FPC)，14代表时序控制器所在的时序电路板。300代表闪存。示例性地，闪存300可以设置在一个印刷电路板12上，时序电路板上可以设置一个时序控制器，这样可以降低集成难度。时序电路板上也可以设置两个时序控制器(例如一个作为主时序控制器，另一个作为从时序控制器)，以提高驱动能力和运算能力，有利于应用于高刷新率(例如120Hz，240Hz等)的显示面板中。示例性地，时序控制器200可以在上电时，从闪存300中获取目标补偿查找表。例如，时序控制器200可以在上电时，时序控制器200的闪存从闪存300中获取目标补偿查找表并存储。在时序控制器控制显示面板显示画面时，可以直接从时序控制器200的闪存中调用存储的目标补偿查找表。
示例性地，目标补偿查找表可以包括：多个不同的第一灰阶值、多个不同的第二灰阶值、以及与任一第一灰阶值和任一第二灰阶值对应的目标补偿值。示例性地，目标补偿查找表具有对应的灰阶位数，即目标补偿查找表中的第一灰阶值、第二灰阶值以及目标查找灰阶值具有对应的灰阶位数。例如，目标补偿查找表对应的灰阶位数为8bit，则第一灰阶值、第二灰阶值以及目标 查找灰阶值对应的灰阶位数可以为8bit，例如，目标补偿查找表中的第一灰阶值可以为8bit中的0～255灰阶值中的所有灰阶值，第二灰阶值可以为8bit中的0～255灰阶值中的所有灰阶值。或者，目标补偿查找表中的第一灰阶值可以为8bit中的0～255灰阶值中的部分灰阶值，第二灰阶值可以为8bit中的0～255灰阶值中的部分灰阶值。
如图9所示，图9示意出了本公开实施例中的一些目标补偿查找表，该目标补偿查找表包括8bit中部分第一灰阶值和部分第二灰阶值，以及这些第一灰阶值和第二灰阶值对应的目标补偿值。图9中的第一行中的数值(如0、16、32、48、64、80、96、112、128、144、160、176、192、208、224、240、255)代表第一灰阶值，第一列中的数值(如0、16、32、48、64、80、96、112、128、144、160、176、192、208、224、240、255)代表第二灰阶值，其余数值(如L1-1～L17-17)代表目标补偿值。需要说明的是，图9中示意的灰阶值的具体数值仅是举例说明。在实际应用中，可以是根据实际应用的需求进行确定的，在此不作限定。需要说明的是，第一灰阶值可以对应上一行中各子像素的灰阶值，第二灰阶值可以对应当前行中各子像素的灰阶值。
在本公开一些实施例中，步骤S200、根据当前行中各子像素的灰阶值、上一行中各子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中各子像素对应的目标灰阶值，可以包括：可以从目标补偿查找表中，确定同一条数据线连接的当前行子像素的灰阶值和上一行子像素的灰阶值对应的目标补偿值。将同一条数据线连接的当前行子像素的原始灰阶值增加目标补偿值后，确定为同一条数据线连接的中当前行子像素的目标灰阶值。例如，结合图9所示，以数据线DA3连接的蓝色子像素B11作为上一行子像素，数据线DA3连接的绿色子像素G21作为当前行子像素为例，若蓝色子像素B11对应0灰阶值，绿色子像素G21对应192灰阶值，则可以从图9所示的目标补偿查找表中，确定出对应的目标补偿值为L13-1。这样可以将绿色子像素G21对应的192灰阶值增加目标补偿值L13-1后的值，作为绿色子像素G21的目标灰阶值。
S300、根据当前行中各子像素的目标灰阶值，对显示面板中的数据线输入数据电压，使当前行中各子像素充入相应的数据电压。
示例性地，以绿色子像素G21为例，可以根据上述确定出的绿色子像素G21对应的目标灰阶值，对数据线输入对应的目标灰阶值的数据电压，以使绿色子像素G21充入对应的目标灰阶值的数据电压。其余子像素同理，在此不作赘述。
在本公开一些实施例中，确定的目标补偿查找表中的目标补偿值，可以包括：首先，获取原始补偿查找表；其中，原始补偿查找表包括：多个不同的第一灰阶值、多个不同的第二灰阶值、以及与任一第一灰阶值和任一第二灰阶值对应的原始补偿值。示例性地，原始补偿查找表中的第一灰阶值与目标补偿查找表中的第一灰阶值相同，原始补偿查找表中的第二灰阶值与目标补偿查找表中的第二灰阶值相同。例如，如图10所示，图10示意出了本公开实施例中的一些原始补偿查找表，该原始补偿查找表包括8bit中部分第一灰阶值和部分第二灰阶值，以及这些第一灰阶值和第二灰阶值对应的原始补偿值。图10中的第一行中的数值(如0、16、32、48、64、80、96、112、128、144、160、176、192、208、224、240、255)代表第一灰阶值，第一列中的数值(如0、16、32、48、64、80、96、112、128、144、160、176、192、208、224、240、255)代表第二灰阶值，其余数值(如S1-1～S17-17)代表原始补偿值。需要说明的是，图10中示意的灰阶值的具体数值仅是举例说明。在实际应用中，可以是根据实际应用的需求进行确定的，在此不作限定。
之后，可以根据预先确定的补偿增益和原始补偿查找表中的原始补偿值，确定目标补偿查找表中的目标补偿值。示例性地，结合图9与图10所示，可以使将原始补偿查找表中的原始补偿值S2-1和预先确定的补偿增益进行结合，以得到目标补偿查找表中的目标补偿值L2-1。可以使将原始补偿查找表中的原始补偿值S4-5和预先确定的补偿增益进行结合，以得到目标补偿查找表中的目标补偿值L4-5。其余依次类推，在此不作赘述。由于补偿增益是根据显示面板显示的设定灰阶画面和设定重载画面得到的，可以使该目标灰阶值与 显示面板在显示设定灰阶画面时的常规Mura和在显示设定重载画面时的充电率Mura均相关。
在大尺寸高分辨率显示面板上采用Dual-Gate或Tri-Gate设计，可通过降低源极驱动电路的数量来降低成本。通常，数据线通过扇出区的扇出线与源极驱动电路连接。由于对应源极驱动电路中间处的扇出线和对应源极驱动电路两端处的扇出线的长度存在差异，导致源极驱动电路连接的扇出线的电阻存在差异，从而也导致对应源极驱动电路中间处的子像素和对应源极驱动电路两端处的子像素也会存在充电率差异，表现为充电率Mura。为了改善上述问题，可以在源极驱动电路内增加补偿电阻。考虑物料共用性，一般不同尺寸的显示面板会使用相同规格的源极驱动电路。但不同尺寸的显示面板因尺寸大小差异、边框宽度差异、扇出线长度差异、扇出线厚度差异等因素，同一版补偿电阻不会最佳匹配每种尺寸的显示面板，导致不同尺寸的显示面板的充电率Mura的补偿效果不佳。本公开一些实施例中，可以根据源极驱动电路来进行划分补偿区。示例性地，时序控制器可以根据源极驱动电路连接的数据线所在的区域，沿子像素的行方向将显示区划分为多个初始分区。其中，一个源极驱动电路对应至少一个初始分区。之后，沿子像素的列方向将每个初始分区划分为多个补偿区。示例性地，每一个源极驱动电路对应的初始分区的数量相同。例如，可以使一个源极驱动电路对应一个初始分区，也可以使一个源极驱动电路对应两个初始分区，也可以使一个源极驱动电路对应三个初始分区。当然，在实际应用中，一个源极驱动电路对应的初始分区的数量可以根据实际应用的需求进行确定，在此不作限定。
示例性地，结合图1a与图11所示，在显示面板具有两个源极驱动电路时，每个源极驱动电路对应两个初始分区。一个源极驱动电路对应初始分区CS1和CS2，另一个源极驱动电路对应初始分区CS3和CS4。并且，初始分区CS1沿子像素的列方向划分为补偿区QB-1、QB-5、QB-9、QB-13。初始分区CS2沿子像素的列方向划分为补偿区QB-2、QB-6、QB-10、QB-14。初始分区CS3沿子像素的列方向划分为补偿区QB-3、QB-7、QB-11、QB-15。初始分区CS4 沿子像素的列方向划分为补偿区QB-4、QB-8、QB-12、QB-16。
示例性地，考虑到显示面板不同区域的充电率存在差异，也可以直接将显示面板的显示区进行均分，以将显示面板的显示区分成多个补偿区。
当然，在本公开实施例中，划分补偿区的方式也可以根据实际应用的需求进行确定，在此不作限定。
在本公开一些实施例中，可以使一个补偿区对应一个目标补偿查找表和一个补偿增益以及一个原始补偿查找表。针对每一个补偿区，确定目标补偿查找表中的目标补偿值，可以包括：获取补偿区对应的原始补偿查找表，根据补偿区对应的预先确定的补偿增益和原始补偿查找表中的原始补偿值，确定补偿区对应的目标补偿查找表中的目标补偿值。例如，结合图11所示，可以将显示面板的显示区均分为4*4个补偿区QB-1～QB-16。补偿区QB-1对应一个目标补偿查找表和一个补偿增益以及一个原始补偿查找表，则可以根据补偿区QB-1对应的原始补偿查找表中的原始补偿值和补偿增益，确定出补偿区QB-1对应的目标补偿查找表中的目标补偿值。以及，补偿区QB-2对应一个目标补偿查找表和一个补偿增益以及一个原始补偿查找表，则可以根据补偿区QB-2对应的原始补偿查找表中的原始补偿值和补偿增益，确定出补偿区QB-2对应的目标补偿查找表中的目标补偿值。其余依次类推，在此不作赘述。
在本公开一些实施例中，确定各补偿区对应的补偿增益，可以包括：首先，控制显示面板显示设定重载画面，并采集显示面板显示设定重载画面时的重载检测图像。根据重载检测图像在各补偿区中的亮度，确定各补偿区对应的重载检测补偿值。以及，控制显示面板显示设定灰阶画面，并采集显示面板显示设定灰阶画面时的灰阶检测图像。根据灰阶检测图像在各补偿区中的亮度，确定各补偿区对应的灰阶检测补偿值。这样可以根据各补偿区对应的灰阶检测补偿值和重载检测补偿值，确定各补偿区对应的补偿增益。示例性地，可以采用公式Gi1_a＝1+(Dc1_a-Dn1_a)/Ds，根据各补偿区对应的灰阶检测补偿值和重载检测补偿值，确定各补偿区对应的补偿增益。其中，Gi1_a代表第a个补偿区对应的补偿增益，Dc1_a代表第a个补偿区对应的重载检测 补偿值，Dn1_a代表第a个补偿区对应的灰阶检测补偿值，Ds代表基准值，a为大于0的整数。
例如，结合图11与图12所示，Dc1_1代表第1个补偿区QB-1对应的重载检测补偿值，Dc1_2代表第2个补偿区QB-2对应的重载检测补偿值，Dc1_3代表第3个补偿区QB-3对应的重载检测补偿值，……Dc1_16代表第16个补偿区QB-16对应的重载检测补偿值。其中，可以根据重载检测图像在第1个补偿区QB-1中的亮度，确定重载检测补偿值Dc1_1。可以根据重载检测图像在第2个补偿区QB-2中的亮度，确定重载检测补偿值Dc1_2。可以根据重载检测图像在第3个补偿区QB-3中的亮度，确定重载检测补偿值Dc1_3。……可以根据重载检测图像在第16个补偿区QB-16中的亮度，确定重载检测补偿值Dc1_16。
例如，结合图11与图13所示，Dn1_1代表第1个补偿区QB-1对应的灰阶检测补偿值，Dn1_2代表第2个补偿区QB-2对应的灰阶检测补偿值，Dn1_3代表第3个补偿区QB-3对应的灰阶检测补偿值，……Dn1_16代表第16个补偿区QB-16对应的灰阶检测补偿值。其中，可以根据灰阶检测图像在第1个补偿区QB-1中的亮度，确定灰阶检测补偿值Dn1_1。可以根据灰阶检测图像在第2个补偿区QB-2中的亮度，确定灰阶检测补偿值Dn1_2。可以根据灰阶检测图像在第3个补偿区QB-3中的亮度，确定灰阶检测补偿值Dn1_3。……可以根据灰阶检测图像在第16个补偿区QB-16中的亮度，确定灰阶检测补偿值Dn1_16。
例如，结合图11与图14所示，Gi1_1代表第1个补偿区QB-1对应的补偿增益，Gi1_2代表第2个补偿区QB-2对应的补偿增益，Gi1_3代表第3个补偿区QB-3对应的补偿增益，……Gi1_16代表第16个补偿区QB-16对应的补偿增益。其中，Gi1_1＝1+(Dc1_1-Dn1_1)/Ds，Gi1_2＝1+(Dc1_2-Dn1_2)/Ds，Gi1_3＝1+(Dc1_3-Dn1_3)/Ds，……Gi1_16＝1+(Dc1_16-Dn1_16)/Ds。
示例性地，基准值可以为根据经验得到的值，或者，基准值也可以为灰阶检测补偿值中的一个。例如，可以将灰阶检测图中的不存在常规Mura的补 偿区对应的灰阶检测补偿值作为基准值。例如，结合图13所示，若QB-3不存在常规Mura，则可以将Dn1_3作为基准值。
在本公开一些实施例中，可以采用公式LMD1_a＝LYD1_a*Gi1_a，确定补偿区对应的目标补偿查找表中的目标补偿值。其中，LMD1_a代表第a个补偿区对应的目标补偿查找表中的目标补偿值，LYD1_a代表第a个补偿区对应的原始补偿查找表中的原始补偿值。
示例性地，以第1个补偿区QB-1，图9作为第1个补偿区QB-1对应的目标补偿查找表，图10作为第1个补偿区QB-1对应的原始补偿查找表为例，在LYD1_1为S4-5时，LMD1_1为L4-5，即L4-5＝S4-5*Gi1_1。在LYD1_1为S2-1时，LMD1_1为L2-1，即L2-1＝S2-1*Gi1_1。其余依次类推，在此不作赘述。
需要说明的是，补偿区的数量可以根据实际应用的需求进行确定，在此不作限定。
本公开实施例提供了另一些显示面板的驱动方法，其针对上述实施例中的实施方式进行了变形。下面仅说明本实施例与上述实施例的区别之处，其相同之处在此不作赘述。
在本公开一些实施例中，可以采用公式：Gi2_a＝Dc2_a-Dn2_a，根据各补偿区对应的灰阶检测补偿值和重载检测补偿值，确定各补偿区对应的补偿增益。其中，Gi2_a代表第a个补偿区对应的补偿增益，Dc2_a代表第a个补偿区对应的重载检测补偿值，Dn2_a代表第a个补偿区对应的灰阶检测补偿值，a为大于0的整数。
例如，结合图11与图15所示，Dc2_1代表第1个补偿区QB-1对应的重载检测补偿值，Dc2_2代表第2个补偿区QB-2对应的重载检测补偿值，Dc2_3代表第3个补偿区QB-3对应的重载检测补偿值，……Dc2_16代表第16个补偿区QB-16对应的重载检测补偿值。其中，可以根据重载检测图像在第1个补偿区QB-1中的亮度，确定重载检测补偿值Dc2_1。可以根据重载检测图像在第2个补偿区QB-2中的亮度，确定重载检测补偿值Dc2_2。可以根据重载 检测图像在第3个补偿区QB-3中的亮度，确定重载检测补偿值Dc2_3。……可以根据重载检测图像在第16个补偿区QB-16中的亮度，确定重载检测补偿值Dc2_16。
例如，结合图11与图16所示，Dn2_1代表第1个补偿区QB-1对应的灰阶检测补偿值，Dn2_2代表第2个补偿区QB-2对应的灰阶检测补偿值，Dn2_3代表第3个补偿区QB-3对应的灰阶检测补偿值，……Dn2_16代表第16个补偿区QB-16对应的灰阶检测补偿值。其中，可以根据灰阶检测图像在第1个补偿区QB-1中的亮度，确定灰阶检测补偿值Dn2_1。可以根据灰阶检测图像在第2个补偿区QB-2中的亮度，确定灰阶检测补偿值Dn2_2。可以根据灰阶检测图像在第3个补偿区QB-3中的亮度，确定灰阶检测补偿值Dn2_3。……可以根据灰阶检测图像在第16个补偿区QB-16中的亮度，确定灰阶检测补偿值Dn2_16。
例如，结合图11与图17所示，Gi2_1代表第1个补偿区QB-1对应的补偿增益，Gi2_2代表第2个补偿区QB-2对应的补偿增益，Gi2_3代表第3个补偿区QB-3对应的补偿增益，……Gi2_16代表第16个补偿区QB-16对应的补偿增益。其中，Gi2_1＝Dc2_1-Dn2_1，Gi2_2＝Dc2_2-Dn2_2，Gi2_3＝Dc2_3-Dn2_3，……Gi2_16＝Dc2_16-Dn2_16。
在本公开一些实施例中，可以采用公式LMD2_a＝LYD2_a+Gi2_a，确定补偿区对应的目标补偿查找表中的目标补偿值。其中，LMD2_a代表第a个补偿区对应的目标补偿查找表中的目标补偿值，LYD2_a代表第a个补偿区对应的原始补偿查找表中的原始补偿值，Gi2_a代表第a个补偿区对应的补偿增益。
示例性地，以第1个补偿区QB-1，图9作为第1个补偿区QB-1对应的目标补偿查找表，图10作为第1个补偿区QB-1对应的原始补偿查找表为例，在LYD1_1为S4-5时，LMD1_1为L4-5，即L4-5＝S4-5+Gi1_1。在LYD1_1为S2-1时，LMD1_1为L2-1，即L2-1＝S2-1+Gi1_1。其余依次类推，在此不作赘述。
本公开实施例提供了又一些显示面板的驱动方法，其针对上述实施例中 的实施方式进行了变形。下面仅说明本实施例与上述实施例的区别之处，其相同之处在此不作赘述。
在本公开一些实施例中，当前行中各子像素的灰阶值为当前行中各子像素的原始灰阶值，上一行中各子像素的灰阶值为上一行中各子像素的目标灰阶值。示例性地，获取到的当前行中各子像素的灰阶值可以为当前行中各子像素的原始灰阶值。例如，可以获取到当前行中各子像素的原始显示数据，该原始显示数据包括当前行中每一个子像素一一对应的携带有相应灰阶值的数据电压的数字电压形式。并且，该数据电压对应的灰阶值即为原始灰阶值。这样可以根据当前行中各子像素的原始显示数据，确定出当前行中各子像素的原始灰阶值。
示例性地，针对上一行中一个子像素来说，充入该子像素的数据电压对应的目标灰阶值和该子像素对应的原始灰阶值不同。并且，在上一行中各子像素充入的数据电压对应的目标灰阶值确定出来后，可以同时进行存储，以便在确定当前行中各子像素充入的数据电压对应的目标灰阶值时进行获取。这样可以使，获取到的上一行中各子像素的灰阶值可以为上一行中各子像素的目标灰阶值。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流 程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本公开的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开范围的所有变更和修改。
显然，本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开实施例的精神和范围。这样，倘若本公开实施例的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (15)

  1. 一种显示面板的驱动方法，包括：
    获取当前行中各子像素的灰阶值以及上一行中各子像素的灰阶值；
    根据当前行中各所述子像素的灰阶值、上一行中各所述子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中各所述子像素对应的目标灰阶值；其中，所述目标补偿值根据所述显示面板显示的设定灰阶画面和设定重载画面得到；
    根据所述当前行中各所述子像素的目标灰阶值，对所述显示面板中的数据线输入数据电压，使所述当前行中各所述子像素充入相应的数据电压。
  2. 如权利要求1所述的显示面板的驱动方法，其中，所述目标补偿查找表包括：多个不同的第一灰阶值、多个不同的第二灰阶值、以及与任一所述第一灰阶值和任一所述第二灰阶值对应的目标补偿值；
    所述确定的目标补偿查找表中的目标补偿值，包括：
    获取原始补偿查找表；其中，所述原始补偿查找表包括：多个不同的第一灰阶值、多个不同的第二灰阶值、以及与任一所述第一灰阶值和任一所述第二灰阶值对应的原始补偿值；
    根据预先确定的补偿增益和所述原始补偿查找表中的原始补偿值，确定所述目标补偿查找表中的目标补偿值；其中，所述补偿增益根据所述显示面板显示的设定灰阶画面和设定重载画面得到。
  3. 如权利要求1所述的显示面板的驱动方法，其中，所述显示面板中的显示区具有预先确定的多个补偿区，一个所述补偿区对应一个所述目标补偿查找表和一个所述补偿增益；
    针对每一个所述补偿区，确定所述目标补偿查找表中的目标补偿值，包括：
    获取所述补偿区对应的原始补偿查找表；
    根据所述补偿区对应的预先确定的补偿增益和所述原始补偿查找表中的 原始补偿值，确定所述补偿区对应的所述目标补偿查找表中的目标补偿值。
  4. 如权利要求3所述的显示面板的驱动方法，其中，确定各所述补偿区对应的补偿增益，包括：
    采集所述显示面板显示所述设定重载画面时的重载检测图像，和显示所述设定灰阶画面时的灰阶检测图像；
    根据所述重载检测图像在各所述补偿区中的亮度，确定各所述补偿区对应的重载检测补偿值，以及根据所述灰阶检测图像在各所述补偿区中的亮度，确定各所述补偿区对应的灰阶检测补偿值；
    根据各所述补偿区对应的所述灰阶检测补偿值和所述重载检测补偿值，确定各所述补偿区对应的所述补偿增益。
  5. 如权利要求4所述的显示面板的驱动方法，其中，采用如下公式，根据各所述补偿区对应的所述灰阶检测补偿值和所述重载检测补偿值，确定各所述补偿区对应的所述补偿增益；
    Gi1_a＝1+(Dc1_a-Dn1_a)/Ds；
    其中，Gi1_a代表第a个补偿区对应的所述补偿增益，Dc1_a代表所述第a个补偿区对应的所述重载检测补偿值，Dn1_a代表所述第a个补偿区对应的所述灰阶检测补偿值，Ds代表基准值，a为大于0的整数。
  6. 如权利要求5所述的显示面板的驱动方法，其中，所述基准值为所述灰阶检测补偿值中的一个。
  7. 如权利要求5或6所述的显示面板的驱动方法，其中，采用如下公式，确定所述补偿区对应的所述目标补偿查找表中的目标补偿值；
    LMD1_a＝LYD1_a*Gi1_a；
    其中，LMD1_a代表所述第a个补偿区对应的目标补偿查找表中的所述目标补偿值，LYD1_a代表所述第a个补偿区对应的原始补偿查找表中的所述原始补偿值。
  8. 如权利要求4所述的显示面板的驱动方法，其中，采用如下公式，根据各所述补偿区对应的所述灰阶检测补偿值和所述重载检测补偿值，确定各 所述补偿区对应的所述补偿增益；
    Gi2_a＝Dc2_a-Dn2_a；
    其中，Gi2_a代表第a个补偿区对应的所述补偿增益，Dc2_a代表所述第a个补偿区对应的所述重载检测补偿值，Dn2_a代表所述第a个补偿区对应的所述灰阶检测补偿值，a为大于0的整数。
  9. 如权利要求8所述的显示面板的驱动方法，其中，采用如下公式，确定所述补偿区对应的所述目标补偿查找表中的目标补偿值；
    LMD2_a＝LYD2_a+Gi2_a；
    其中，LMD2_a代表第a个补偿区对应的目标补偿查找表中的所述目标补偿值，LYD2_a代表所述第a个补偿区对应的原始补偿查找表中的所述原始补偿值，Gi2_a代表所述第a个补偿区对应的所述补偿增益。
  10. 如权利要求1-11任一项所述的显示面板的驱动方法，其中，所述根据当前行中各所述子像素的灰阶值、上一行中各所述子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中各所述子像素对应的目标灰阶值，包括：
    从所述目标补偿查找表中，确定同一条数据线连接的所述当前行子像素的灰阶值和所述上一行子像素的灰阶值对应的目标补偿值；
    将所述同一条数据线连接的所述当前行子像素的原始灰阶值增加所述目标补偿值后，确定为所述同一条数据线连接的中所述当前行子像素的目标灰阶值。
  11. 如权利要求10所述的显示面板的驱动方法，其中，所述当前行中各所述子像素的灰阶值为当前行中各所述子像素的原始灰阶值，所述上一行中各所述子像素的灰阶值为上一行中各所述子像素的原始灰阶值。
  12. 如权利要求10所述的显示面板的驱动方法，其中，所述当前行中各所述子像素的灰阶值为当前行中各所述子像素的原始灰阶值，所述上一行中各所述子像素的灰阶值为上一行中各所述子像素的目标灰阶值。
  13. 一种显示装置，包括：
    显示面板；
    时序控制器，被配置为获取当前行中各子像素的灰阶值以及上一行中各子像素的灰阶值；根据当前行中各所述子像素的灰阶值、上一行中各所述子像素的灰阶值、以及预先确定的目标补偿查找表中的目标补偿值，确定当前行中各所述子像素对应的目标灰阶值；根据所述当前行中各所述子像素的目标灰阶值，对所述显示面板中的数据线输入数据电压，使所述当前行中各所述子像素充入相应的数据电压；其中，所述目标补偿值根据所述显示面板显示的设定灰阶画面和设定重载画面得到。
  14. 如权利要求13所述的显示装置，其中，所述显示装置还包括闪存；
    所述闪存被配置为存储预先确定的目标补偿查找表；
    所述时序控制器还被配置为在上电时，从所述闪存中获取所述目标补偿查找表。
  15. 如权利要求14所述的显示装置，其中，所述显示面板包括多个源极驱动电路；不同所述源极驱动电路连接不同的数据线；
    所述时序控制器还被配置为：
    根据所述源极驱动电路连接的数据线所在的区域，沿子像素的行方向将显示区划分为多个初始分区；其中，一个所述源极驱动电路对应至少一个所述初始分区；
    沿子像素的列方向将每个所述初始分区划分为多个补偿区。
PCT/CN2022/077765 2022-02-24 2022-02-24 显示面板的驱动方法及显示装置 WO2023159444A1 (zh)

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