WO2024065392A1 - 显示面板的驱动方法及驱动电路、显示设备 - Google Patents

显示面板的驱动方法及驱动电路、显示设备 Download PDF

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Publication number
WO2024065392A1
WO2024065392A1 PCT/CN2022/122568 CN2022122568W WO2024065392A1 WO 2024065392 A1 WO2024065392 A1 WO 2024065392A1 CN 2022122568 W CN2022122568 W CN 2022122568W WO 2024065392 A1 WO2024065392 A1 WO 2024065392A1
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Prior art keywords
display
voltage
partition
pixel
partitions
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Ceased
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PCT/CN2022/122568
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English (en)
French (fr)
Inventor
陈鹏
许志财
刘少宁
杨杰
李孙寸
李世明
申丽霞
李珢浩
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Priority to US18/273,784 priority Critical patent/US12451042B2/en
Priority to PCT/CN2022/122568 priority patent/WO2024065392A1/zh
Priority to CN202280003355.9A priority patent/CN118119995A/zh
Publication of WO2024065392A1 publication Critical patent/WO2024065392A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours

Definitions

  • the present application relates to the field of display technology, and in particular to a driving method and driving circuit of a display panel, and a display device.
  • the display device generally includes a display panel and a driving circuit.
  • the driving circuit can be connected to a plurality of pixels in the display panel through wiring and provide driving signals to the plurality of pixels to drive the plurality of pixels to emit light.
  • the present application provides a display panel driving method and driving circuit, and a display device, and the technical solution is as follows:
  • a method for driving a display panel wherein the display panel comprises: a plurality of display partitions; the method comprises:
  • the pixels are driven to display the target gray scale based on the gamma voltage.
  • a driving circuit of a display panel comprising: a plurality of display partitions; the driving circuit comprises: a timing control circuit and a source driving module;
  • the timing control circuit is used to: obtain gamma correction data of each display partition of the multiple display partitions, where the gamma correction data of the multiple display partitions is obtained by performing gamma correction on at least one display partition of the multiple display partitions;
  • the source driving electric module is used to drive the pixel to display the target gray scale based on the gamma voltage.
  • a driving circuit for a display panel comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the display panel driving method as described in the above aspects when executing the computer program.
  • a display device comprising: a display panel, and a driving circuit of the display panel as described in the above aspect.
  • a computer-readable storage medium in which a computer program is stored.
  • the computer program is loaded and executed by a processor to implement the method for driving a display panel as described in the above aspects.
  • a computer program product comprising instructions is provided, and when the computer program product is run on the computer, the computer is enabled to execute the display panel driving method described in the above aspects.
  • FIG1 is a schematic diagram of a display effect of a display panel in the related art
  • FIG2 is a flow chart of a method for driving a display panel provided in an embodiment of the present application.
  • FIG3 is a flow chart of another method for driving a display panel provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of the arrangement of multiple display partitions of a display panel provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of the arrangement of multiple display partitions of another display panel provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of the arrangement of multiple display partitions of another display panel provided in an embodiment of the present application.
  • FIG7 is a schematic diagram of an optical device collecting display brightness of a display partition provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a gamma curve obtained by fitting the voltage correspondence relationship of each display partition and a gamma value of the gamma curve provided by an embodiment of the present application;
  • FIG9 is a schematic diagram of a LUT showing partitions provided in an embodiment of the present application.
  • FIG10 is a schematic diagram of a driving circuit driving a pixel in a display process provided by an embodiment of the present application.
  • FIG11 is a schematic diagram of the structure of a driving circuit provided in an embodiment of the present application.
  • FIG. 12 is a schematic diagram of the structure of a display device provided in an embodiment of the present application.
  • the wiring lengths between pixels and the driving circuits in different areas of the display panel vary greatly, and the wiring length affects the resistance of the wiring, which results in a large difference in the resistance of the wiring connecting the driving circuit and pixels in different areas.
  • the driving signal provided by the driving circuit usually generates a voltage drop (IR drop) due to the resistance of the wiring after being transmitted through the wiring
  • the voltage drops generated by the wiring connecting the driving circuit and pixels in different areas are different, resulting in large differences in the voltages of the driving signals actually received by pixels in different areas, that is, there are large differences in the loading states of different areas of the display panel, which in turn results in low uniformity of the display brightness of the display panel.
  • the display brightness of the display panel will further be low in uniformity.
  • a pixel e.g., a central pixel
  • the display panel can be gamma corrected based on the luminance (and chromaticity) of the pixel, i.e., gamma tuning can be performed to improve the problem of uneven brightness of the display panel.
  • the default gamma voltage corresponding to each grayscale can be adjusted from grayscale 255 to grayscale 0 based on the luminance of the pixel at different grayscales, so that the actual luminance of the pixel can be equal to the ideal luminance when driven by the adjusted gamma voltage, and the chromaticity can also meet the requirements.
  • the ideal luminance can be determined based on the grayscale to be displayed by the pixel.
  • the default gamma voltage is pre-stored.
  • gamma correction is performed based on only one pixel in the display panel. This can only ensure that the brightness of the target area where the pixel is located is relatively uniform. The brightness of other areas of the display panel except the target area still varies greatly.
  • FIG1 shows a schematic diagram of the display effect of a display panel after gamma correction is performed on the display panel using the method in the related art.
  • the display brightness of different areas of the display panel is different. Therefore, it can be seen that the effect of improving the display brightness of the display panel using the method in the related art is poor.
  • the embodiment of the present application provides a method for driving a display panel, the method being applied to a driving circuit of a display panel, the display panel comprising: a plurality of display partitions.
  • the method comprises:
  • Step 101 Obtain gamma correction data of each display partition among a plurality of display partitions.
  • the gamma correction data of the multiple display blocks are obtained by performing gamma correction on at least one display block among the multiple display blocks.
  • the gamma correction data of the multiple display blocks are obtained by performing gamma correction on the multiple display blocks respectively.
  • the gamma correction data of the multiple display blocks are obtained by performing gamma correction on a target display block among the multiple display blocks.
  • the target display block may be any display block among the multiple display blocks.
  • the gamma correction data of each display partition among the multiple display partitions may be a voltage correspondence between the grayscale of the display partition and the gamma voltage.
  • the gamma correction data of the target display partition among the multiple display partitions may be a voltage correspondence between the grayscale of the target display partition and the gamma voltage, and an offset value correspondence between the grayscale and the voltage offset value.
  • the gamma correction data of each other display partition except the target display partition among the multiple display partitions is an offset value correspondence between the grayscale of the other display partition and the voltage offset value.
  • the voltage offset value corresponding to any grayscale in the offset value correspondence is an offset value of the gamma voltage corresponding to any grayscale in the voltage correspondence of the target display partition.
  • Step 102 for each pixel in the display panel, determine a first correction voltage corresponding to a target grayscale to be displayed by the pixel based on the gamma correction data of the first display subarea where the pixel is located.
  • the driving circuit determines the first display partition where the target pixel is located based on the position of the target pixel in the display panel and the positions of the plurality of display partitions in the display panel. Afterwards, the driving circuit may determine the first correction voltage corresponding to the target grayscale based on the target grayscale to be displayed by the target pixel and the gamma correction data of the first display partition.
  • the first correction voltage corresponding to the target grayscale determined by the driving circuit based on the gamma correction data of the first display partition is the first gamma voltage corresponding to the target grayscale.
  • the first correction voltage corresponding to the target gray scale determined by the driving circuit based on the gamma correction data of the first display partition is the first voltage offset value corresponding to the target gray scale.
  • Step 103 determining at least one second correction voltage corresponding to the target gray scale based on the gamma correction data of at least one second display subarea adjacent to the first display subarea.
  • the driving circuit may determine at least one second display partition based on the positions of the plurality of display partitions in the display panel and the position of the first display partition, each second display partition being adjacent to the first display partition. Afterwards, for each second display partition in the at least one second display partition, the driving circuit may determine a second correction voltage corresponding to the target grayscale to be displayed by the target pixel and the gamma correction data of the second display partition.
  • each second correction voltage corresponding to the target grayscale is the second gamma voltage corresponding to the target grayscale. If the gamma correction data of the target display partition among multiple display partitions is the voltage correspondence of the target display partition and the offset value correspondence, and the gamma correction data of other display partitions is the offset value correspondence of the other display partitions, then each second correction voltage corresponding to the target grayscale is the second voltage offset value corresponding to the target grayscale.
  • Step 104 Determine a gamma voltage of the pixel according to the first correction voltage, at least one second correction voltage, and the position of the pixel in the display panel.
  • the driving circuit can directly obtain the gamma voltage of the target pixel based on the first correction voltage, the at least one second correction voltage, and the position of the target pixel in the display panel.
  • the driving circuit may first determine the voltage offset value of the target pixel based on the first correction voltage and the at least one second correction voltage, and the position of the target pixel. Afterwards, the driving circuit may determine the gamma voltage of the target pixel based on the voltage offset value of the target pixel and the gamma voltage corresponding to the target grayscale in the voltage correspondence relationship of the target display partition.
  • the gamma voltage of the target pixel may be the sum of the voltage offset value of the target pixel and the gamma voltage.
  • the driving circuit may first use a linear difference algorithm to process the first correction voltage, at least one second correction voltage, the position of the central pixel of the first display partition in the display panel, and the position of the central pixel of each second display partition in the display panel to obtain a mapping relationship between the correction voltage and the pixel position. Then, the driving circuit may determine the target gamma voltage of the target pixel based on the position of the target pixel in the display panel and the mapping relationship.
  • a voltage determination model may be pre-stored in the driving circuit.
  • the driving circuit may input a first correction voltage, at least one second correction voltage and the position of the target pixel in the display panel into the voltage determination model to obtain the gamma voltage of the target pixel.
  • the voltage determination model may be pre-trained based on multiple groups of sample data. Each group of sample data includes: a sample voltage of a sample pixel in a sample panel, a first sample voltage determined based on the gamma correction data of a first sample partition where the sample pixel is located, at least one second sample voltage determined based on the gamma correction data of at least one second sample partition, and the position of the sample pixel in the sample panel. Each second sample partition is adjacent to the first sample partition.
  • the sample voltage may be a sample gamma voltage or a sample voltage offset value.
  • the voltage determination model may include: a first voltage determination sub-model and a second voltage determination sub-model.
  • the first voltage determination sub-model is obtained by training based on sample gamma voltages
  • the second voltage determination sub-model is obtained by training based on sample voltage offset values. If the first correction voltage and the second correction voltage are both gamma voltages, the driving circuit may use the first voltage determination sub-model to process the first correction voltage and the second correction voltage to obtain the gamma voltage of the target pixel. If the first correction voltage and the second correction voltage are both voltage offset values, the driving circuit may use the second voltage determination sub-model to process the correction voltage and the second correction voltage to obtain the gamma voltage of the target pixel.
  • Step 105 driving the pixel to display a target gray scale based on the gamma voltage of the pixel.
  • the driving circuit can generate a driving signal based on the target gamma voltage to drive the target pixel to display a target gray scale.
  • an embodiment of the present application provides a method for driving a display panel. Since the driving circuit can obtain the gamma correction data of each display partition in a plurality of display partitions, and the gamma correction data of the plurality of display partitions is obtained by gamma correction of at least one display partition, the display panel is driven based on the gamma correction data of each display partition, thereby ensuring that the brightness of the display panel is relatively uniform.
  • the gamma voltage of each pixel is determined based on the position of the pixel, the first correction voltage and the second correction voltage, a smooth transition between the luminous brightness of adjacent pixels can be ensured during the display process, thereby ensuring a better display effect of the display panel.
  • the embodiment of the present application takes the gamma correction data of each display partition of multiple display partitions as the voltage correspondence relationship of the display partition as an example to exemplarily illustrate the driving method of the display panel provided by the embodiment of the present application.
  • the method can be applied to the driving circuit of the display panel, and the display panel includes: multiple display partitions. Referring to FIG. 3, the method may include:
  • Step 201 Obtain a voltage correspondence between a gray scale and a gamma voltage of each display partition among a plurality of display partitions.
  • the voltage correspondence of the multiple display partitions is obtained by performing gamma correction on at least one of the multiple display partitions.
  • the voltage correspondence of each display partition in the multiple display partitions is obtained after performing gamma correction on the display partition, that is, the voltage correspondence of the multiple display partitions is obtained after performing gamma correction on the multiple display partitions respectively.
  • the voltage correspondence of the plurality of display partitions is obtained after gamma correction is performed on the target display partition among the plurality of display partitions.
  • the target display partition may be any display partition among the plurality of display partitions.
  • the driving circuit may obtain the voltage correspondence between the grayscale of the target display partition obtained after gamma correction is performed on the target display partition and the voltage correspondence between the grayscale of each other display partition except the target display partition among the plurality of display partitions and the offset value correspondence between the voltage offset value (offset), and then the driving circuit determines the voltage correspondence of any other display partition based on the voltage correspondence and the offset value correspondence of any other display partition.
  • the voltage offset value corresponding to any grayscale in the offset value correspondence is the offset value of the gamma voltage corresponding to any grayscale in the voltage correspondence of the target display partition. That is, the driving circuit may calculate the voltage correspondence of other display partitions based on the voltage correspondence of the target display partition and the offset value correspondence of other display partitions.
  • the multiple display partitions are pre-divided before gamma correction is performed on the display panel, and the multiple display partitions can be arranged in an array.
  • the multiple display partitions can be arranged in a row and multiple columns, or in multiple rows and multiple columns. And the arrangement of the multiple display partitions depends on the division method of the multiple display partitions.
  • the display device 100 to which the display panel 110 belongs includes: a plurality of source driver circuits 120a (FIG. 4 shows three source driver circuits 120a).
  • the plurality of display partitions of the display panel can be obtained by dividing according to the plurality of source driver circuits, and at least one source driver circuit corresponds to one display partition. Since the plurality of source driver circuits are usually arranged along the extension direction of the pixel row of the display panel (i.e., the X direction shown in FIG. 4 ), the plurality of display partitions obtained based on the division of the plurality of source driver circuits can also be arranged according to the pixel row direction of the display panel, i.e., arranged in a row and multiple columns. Each display partition can correspond to at least one (e.g., one) source driver circuit, and can be connected to the corresponding at least one source driver circuit.
  • the total number of the plurality of display partitions depends on the total number of the plurality of source driving circuits and the total number of the source driving circuits corresponding to each display partition.
  • the display panel 100 can be divided into three display partitions, namely, partition 1, partition 2, and partition 3 as shown in FIG. 4 .
  • each display partition may correspond to a source driving circuit, it is convenient to perform gamma correction on the display partition.
  • the multiple display partitions of the display panel can be obtained based on the difference in display brightness of the display panel before gamma correction. Accordingly, before gamma correction is performed, the difference in the measured brightness of each pixel in each of the multiple display partitions obtained by division is less than a brightness threshold, and the difference in the measured brightness of any two pixels in two adjacent display partitions is greater than the brightness threshold.
  • the display panel can usually be divided into multiple display partitions arranged in multiple rows and columns based on the difference in display brightness.
  • multiple display partitions i.e., partitions 1 to 9 shown in FIG. 5 or FIG. 6
  • multiple display partitions can be arranged in three rows and three columns.
  • multiple display partitions can be arranged in nine rows and nine columns, or multiple display partitions can be arranged in two rows and seven columns.
  • the widths of the display partitions in the same row are equal, and the lengths of the display partitions in the same column can be equal. In this way, it is convenient to perform gamma correction on at least one display partition among the multiple display partitions.
  • each display partition can be parallel to the pixel column extension direction of the display panel (i.e., the Y direction shown in Figures 5 and 6), and the length of each display partition can be parallel to the pixel row extension direction of the display panel (i.e., the X direction shown in Figures 5 and 6).
  • each display partition located in the same row can be flexibly adjusted according to the difference in display brightness of the display panel, and the width of each display partition located in the same column can also be flexibly adjusted.
  • the position of each display partition in the display panel can be flexibly adjusted. It can be seen that the division method of dividing the display panel based on the difference in display brightness is highly flexible and can be applied to display panels with different brightness differences.
  • any two display partitions among the multiple display partitions have the same length and the same width.
  • each of the multiple display partitions may be a rectangle, so that it is convenient to perform gamma correction on at least one of the multiple display partitions.
  • the size of each display partition may be smaller than a size threshold.
  • the size threshold may be 10 inches. In this way, it can be ensured that after the display panel is driven based on the voltage correspondence relationship of the multiple display partitions obtained after correction, the display brightness of the display panel is relatively uniform.
  • Step 202 for each target pixel in the display panel, based on the voltage correspondence relationship of the first display subarea where the target pixel is located, determine a first gamma voltage corresponding to a target grayscale to be displayed by the target pixel.
  • the driving circuit determines the first display subarea where the target pixel is located based on the position of the target pixel in the display panel and the positions of the plurality of display subareas in the display panel. Afterwards, the driving circuit can determine the first gamma voltage corresponding to the target grayscale from the voltage correspondence between the grayscale of the first display subarea and the gamma voltage based on the target grayscale to be displayed by the target pixel.
  • the position of each display partition in the display panel and the position of each pixel in the display panel can be pre-stored by the driving circuit.
  • the position of each display partition in the display panel of the multiple display partitions can be characterized by the position of the upper left pixel of the display partition in the display panel and the position of the lower right pixel in the display panel.
  • the position of each pixel in the display panel can refer to: the coordinates of the pixel in the coordinate system where the display panel is located.
  • the coordinate system can be a coordinate system established with a point on the display panel (for example, the upper left vertex of the display panel) as the coordinate origin, the pixel row extension direction of the display panel as the horizontal axis extension direction, and the pixel column extension direction of the display panel as the vertical axis extension direction.
  • Step 203 determining at least one second gamma voltage corresponding to a target grayscale to be displayed by a target pixel based on a voltage correspondence relationship of at least one second display subarea adjacent to the first display subarea.
  • the driving circuit may determine at least one second display partition based on the positions of the plurality of display partitions in the display panel and the position of the first display partition in the display panel. Each second display partition is adjacent to the first display partition. Thereafter, for each second display partition, the driving circuit may determine the second gamma voltage corresponding to the target grayscale from the voltage correspondence between the grayscale of the second display partition and the gamma voltage based on the target grayscale to be displayed by the target pixel.
  • the process of the driving circuit determining at least one second display partition may include:
  • the driving circuit may determine a display partition adjacent to the first display partition and closest to the target pixel as the second display partition.
  • the driving circuit can determine the display partition closer to the target pixel among the two adjacent display partitions as the second display partition. If the number of display partitions adjacent to the first display partition is equal to 1, the driving circuit can directly determine an adjacent display partition as the second display partition.
  • the driving circuit can directly determine partition 2 as the second display partition.
  • partition 1 and partition 3 are both adjacent to partition 2. However, since the distance from partition 1 to pixel P2 is closer than the distance from partition 3 to pixel P2, the driving circuit can determine partition 1 as the second display partition.
  • the driving circuit may determine partition 3 as the second display partition.
  • the driving circuit may first determine the display partition adjacent to the first display partition in the direction of pixel row extension and closest to the target pixel as the first second display partition, and determine the display partition adjacent to the first display partition in the direction of pixel column extension and closest to the target pixel as the second second display partition. Afterwards, the driving circuit may determine the display partitions adjacent to the first second display partition and the second second display partition as the third second display partition. It can be seen that the three second display partitions are arranged in a rectangular shape with the first display partition.
  • the driving circuit can first determine the first second display partition and the second second display partition, and then determine the third second display partition. If the number of display partitions adjacent to the first display partition is equal to 3, the driving circuit can directly determine the three display partitions adjacent to the first display partition as three second display partitions.
  • the driving circuit can directly determine partition 2, partition 4 and partition 5 adjacent to partition 1 as the second display partition.
  • the driving circuit can determine partition 5 as the first second display partition. Since the distance between partition 1 and pixel P5 is greater than the distance between partition 7 and pixel P5 in the direction of pixel column extension, the driving circuit can determine partition 1 as the second second display partition. Since partition 2 is adjacent to partition 1, partition 4 and partition 5 respectively, the driving circuit can determine partition 2 as the third second display partition.
  • the driving circuit can determine partition 6 as the first second display partition, partition 2 as the second second display partition, and partition 3 as the third second display partition.
  • Step 204 Use a linear difference algorithm to process the first gamma voltage, at least one second gamma voltage, the position of the central pixel of the first display partition in the display panel, and the position of the central pixel of each second display partition in the display panel to obtain a mapping relationship between the gamma voltage and the pixel position.
  • the driving circuit can use a linear difference algorithm to process the first gamma voltage, at least one second gamma voltage, the position of the central pixel of the first display partition in the display panel, and the position of the central pixel of each second display partition in the display panel to obtain a mapping relationship between the gamma voltage and the pixel position.
  • mapping relationship between the gamma voltage obtained by the driving circuit and the pixel position refers to: the mapping relationship between the gamma voltage and the horizontal coordinate of the pixel.
  • the process of the driving circuit obtaining the mapping relationship between the gamma voltage and the pixel position may include: the driving circuit may first use a linear difference algorithm to process the position of the central pixel of the first display partition, the first gamma voltage, and the position of the central pixel of a second display partition arranged along the extension direction of the pixel row (or pixel column) of the first display partition, and the second gamma voltage determined based on the voltage correspondence relationship of the second display partition, to obtain a first sub-mapping relationship between the first sub-gamma voltage and the pixel horizontal coordinate (or pixel column coordinate), and then use a linear difference algorithm to process the positions of the central pixels of the other two second display partitions, and the other two gamma voltages, to obtain a second sub-mapping relationship between the second sub-gamma voltage and the pixel horizontal coordinate (or pixel column coordinate). After that, the driving circuit may again use a linear difference algorithm to process the first sub-
  • FIG. 5 multiple display partitions are shown in FIG. 5, and the target pixel is the pixel P5 shown in FIG. 5 as an example, that is, the first display partition is partition 4, and the three second display partitions are partition 1, partition 2 and partition 5, respectively, to exemplarily illustrate the corresponding relationship between the gamma voltage obtained by the driving circuit and the pixel position:
  • the position of the central pixel of partition 1 among the multiple display partitions is (x 1 , y 1 )
  • the position of the central pixel of partition 2 is (x 2 , y 1 )
  • the position of the central pixel of partition 4 is (x 1 , y 2 )
  • the position of the central pixel of partition 5 is (x 2 , y 2 ).
  • the second gamma voltage determined based on the voltage correspondence of partition 1 is V 1
  • the second gamma voltage determined based on the voltage correspondence of partition 2 is V 2
  • the first gamma voltage is V 3
  • the second gamma voltage determined based on the voltage correspondence of partition 5 is V 4 .
  • the driving circuit may obtain a first sub-mapping relationship based on the first gamma voltage V 3 , the position (x 1 , y 2 ) of the central pixel of partition 4, the second gamma voltage V 4 , and the position (x 2 , y 2 ) of the central pixel of partition 5, and obtain a second sub-mapping relationship based on the second gamma voltage V 1 , the position (x 1 , y 1 ) of the central pixel of partition 1, the second gamma voltage V 2 , and the position (x 2 , y 1 ) of the central pixel of partition 2.
  • the first sub-mapping relationship satisfies the following formula (1)
  • the second sub-mapping relationship satisfies the following formula (2).
  • the driving circuit may obtain the corresponding relationship between the gamma voltage and the pixel position shown in formula (3) using the first sub-mapping relationship and the second sub-mapping relationship, that is, the above formula (1) and formula (2).
  • x is the horizontal coordinate of the pixel
  • V in formula (3) is the gamma voltage
  • y is the vertical coordinate of the pixel.
  • Step 205 Determine the gamma voltage of the target pixel based on the position of the target pixel in the display panel and the mapping relationship.
  • the driving circuit After the driving circuit obtains the mapping relationship between the gamma voltage and the pixel position, the position of the target pixel in the display panel can be substituted into the mapping relationship to obtain the gamma voltage of the target pixel.
  • Step 206 driving the target pixel to display the target gray scale based on the gamma voltage.
  • the driving circuit can generate a driving signal based on the gamma voltage to drive the pixel to display the target gray scale.
  • the driving circuit can obtain the voltage correspondence between the grayscale and the gamma voltage of each display partition in the multiple display partitions through multiple optional implementation methods, that is, the driving circuit can perform step 201 through multiple optional implementation methods.
  • the driving circuit can perform gamma correction on the multiple display partitions respectively to obtain the voltage correspondence relationship of each display partition in the multiple display partitions. That is, the voltage correspondence relationship of the multiple display partitions is obtained by performing gamma correction on the multiple display partitions respectively. In this way, it can be ensured that the accuracy of the determined voltage correspondence relationship of the multiple display partitions is high.
  • the driving circuit can be connected to an optical device (e.g., a color analyzer) for collecting the display brightness of the display partition, such as the optical device 200 shown in FIG7 .
  • an optical device e.g., a color analyzer
  • the optical device 200 can send the display brightness collected from the display partition to the driving circuit.
  • the driving circuit can perform gamma correction on the display partition based on the acquired display brightness of the display partition to obtain a voltage correspondence between the grayscale of the display partition and the gamma voltage.
  • the display brightness of the display partition can be the luminous brightness of the central pixel of the display partition.
  • the driving circuit may perform gamma correction on only one display partition among the multiple display partitions to obtain the voltage correspondence relationship of the multiple display partitions. In this way, the efficiency of obtaining the voltage correspondence relationship of the multiple display partitions can be improved.
  • the driving circuit can obtain the voltage correspondence between the grayscale and the gamma voltage of the reference display partition among the multiple display partitions included in the reference panel, and the offset value correspondence between the grayscale and the voltage offset value of each remaining display partition except the reference display partition among the multiple display partitions of the reference panel.
  • the voltage offset value corresponding to any grayscale in the offset value correspondence of each remaining display partition is the offset value of the gamma voltage corresponding to any grayscale in the voltage correspondence of the reference display partition.
  • the voltage correspondence of the reference display partition and the offset value correspondence of each remaining display partition can be obtained after the correction device performs gamma correction on the reference panel and sent to the driving circuit.
  • the model of the reference panel is the same as the model of the display panel.
  • the driving circuit can obtain the display brightness of the target display partition among the multiple display partitions included in the display panel, and based on the display brightness of the target display partition, perform gamma correction on the target display partition to obtain the voltage correspondence between the grayscale of the target display partition and the gamma voltage.
  • the total number of multiple display partitions of the display panel is equal to the total number of multiple display partitions of the reference panel, and after the display panel overlaps with the reference panel, the target display partition of the display panel overlaps with the reference display partition of the reference panel, and each other display partition of the display panel overlaps with one of the remaining display partitions in the reference panel. That is, the multiple display partitions of the reference panel correspond one-to-one to the multiple display partitions of the display panel.
  • the overlap of A and B means that the orthographic projection of A on the plane where B is located overlaps with B.
  • the driving circuit can determine the voltage correspondence of the other display partitions based on the voltage correspondence of the target display partition and the offset value correspondence of the remaining display partitions corresponding to the other display partitions. That is, the driving circuit can determine the offset value correspondence of the remaining display partitions corresponding to the other display partitions as the offset value correspondence of the other display partitions, thereby obtaining the voltage correspondence of the other display partitions.
  • the position of the remaining display partitions corresponding to the other display partitions relative to the reference display partition is the same as the position of the other display partitions relative to the target display partition.
  • the driving circuit may determine the sum of the gamma voltage corresponding to any grayscale in the voltage correspondence of the target display partition and the voltage offset value corresponding to any grayscale in the offset value correspondence as the gamma voltage corresponding to any grayscale in the voltage correspondence of the other display partitions.
  • the driving circuit can also verify the voltage correspondence relationship of the other display partition to detect the accuracy of the voltage correspondence relationship of the other display partition. For example, the driving circuit can drive the other display partition with the gamma voltage corresponding to any grayscale in the voltage correspondence relationship of the other display partition, and receive the measured display brightness of the other display partition collected by the optical device at this time. If the driving circuit determines that the measured display brightness is equal to the ideal display brightness (or equal within the error range), it can be determined that the calculated correspondence relationship of the other display partition is relatively accurate. Among them, the ideal display brightness is determined based on the any grayscale.
  • the driving circuit may be connected to a correction device, which may perform gamma correction on the at least one display partition to obtain correction information of multiple display partitions, and send the obtained correction information to the driving circuit.
  • the driving circuit may then obtain a voltage correspondence relationship of each of the multiple display partitions based on the correction information of the multiple display partitions.
  • the correction information may include: a voltage correspondence relationship of each display partition in the plurality of display partitions.
  • the driving circuit can directly obtain the voltage correspondence relationship of each display partition.
  • the correction information may include: a voltage correspondence of a target display partition among the multiple display partitions, and an offset value correspondence between a grayscale and a voltage offset value of each other display partition among the multiple display partitions except the target display partition, wherein the voltage offset value corresponding to any grayscale in the offset value correspondence is an offset value of a gamma voltage corresponding to any grayscale in the voltage correspondence of the target display partition.
  • the driving circuit can obtain the voltage correspondence between the grayscale of the target display partition and the gamma voltage among the multiple display partitions, and the offset value correspondence between the grayscale of each other display partition except the target display partition among the multiple display partitions and the voltage offset value. Then, for each other display partition, the driving circuit obtains the voltage correspondence of the other display partitions according to the offset value correspondence of the other display partitions and the voltage correspondence of the target display partition.
  • the driving circuit can determine the sum of the gamma voltage corresponding to any grayscale in the voltage correspondence of the target display partition and the gamma voltage corresponding to any grayscale in the offset value correspondence of the other display partition as the gamma voltage corresponding to any grayscale in the voltage correspondence of the other display partition.
  • the process of the correction device performing gamma correction on each display partition in the multiple display partitions can refer to the relevant implementation process of the driving circuit performing gamma correction on each display partition as described above, and the embodiments of the present application will not be repeated here.
  • a gamma curve can be fitted based on multiple gamma voltages and multiple grayscales in the voltage correspondence relationship of each display partition. Since the voltage correspondence relationship of each display partition in the multiple display partitions is obtained after gamma correction is performed on at least one display partition, the gamma values of the multiple gamma curves fitted based on the voltage correspondence relationship of the multiple display partitions may be different.
  • the plurality of display partitions include partition 1 to partition 9, the gamma value of the gamma curve fitted based on the voltage correspondence relationship of partition 1 may be 1.8, the gamma value of the gamma curve fitted based on the voltage correspondence relationship of partition 2 may be 2.0, and the gamma values of the gamma curve fitted based on the voltage correspondence relationship of partitions 3 to partition 9 may be 2.4, 2.0, 2.2, 2.3, 1.9, 2.2 and 2.4 respectively.
  • the correspondence relationship of the multiple display partitions can also be recorded in the memory.
  • the correspondence relationship of the display partitions can be recorded in the form of a table, which can be called a lookup table (LUT).
  • the driving circuit may store the voltage correspondence of each display partition in the plurality of display partitions respectively.
  • the driving circuit may store the voltage correspondence of the target display partition among the multiple display partitions, and store the offset value correspondence between the grayscale and the voltage offset value of each other display partition except the target display partition among the multiple display partitions.
  • the driving circuit may take partition 2 as the target display partition, and calculate the offset value correspondence of each partition in partitions 1 and 3 compared with partition 2.
  • the offset value corresponding to any grayscale in the offset value correspondence of partition 1 may be: the difference obtained by subtracting the gamma voltage corresponding to any grayscale in the voltage correspondence of partition 1 from the gamma voltage corresponding to any grayscale in the voltage correspondence of partition 2.
  • a voltage offset value can occupy 8 bits
  • a gamma voltage can occupy 12 bits.
  • the display partitions can usually be corrected for different grayscales and different maximum display brightnesses.
  • each pixel in the display panel usually includes a plurality of sub-pixels of different colors, during the gamma correction process, the display partitions can usually be corrected for display brightnesses of different colors.
  • each display partition may include: a plurality of sub-voltage correspondences under different colors, and each sub-voltage correspondence records: each maximum display brightness and a gamma voltage under each gray scale.
  • each pixel includes a red (red, R) sub-pixel, a green (green, G) sub-pixel and a blue (blue, B) sub-pixel
  • the multiple grayscales include grayscale 0 to grayscale 1023
  • the magnitude of each display brightness in the multiple maximum display brightnesses is controlled by DBV, and DBV is usually 12 bits, that is, 4095 levels.
  • DBV is usually 12 bits, that is, 4095 levels.
  • the driving circuit of the display panel may include: a timing control (TCON) circuit and a source driving module, and the source driving module includes the multiple source driving circuits described above.
  • TCON timing control
  • the timing control circuit of the display device may obtain the voltage correspondence of at least one display partition among the multiple display partitions from the memory, and determine the gamma voltage of the pixel in each display partition based on the at least one voltage correspondence.
  • the timing control circuit may send the gamma voltage of the pixel to the source driving module so that the source driving module drives the pixel to emit light.
  • the timing control circuit may send the gamma voltage of the pixel to the source driving circuit connected to the display partition to which the pixel belongs.
  • the timing control circuit can send the gamma voltage of the pixels located in the first display partition to the source driver circuit corresponding to the first display partition, send the gamma voltage of the pixels located in the second display partition to the source driver circuit corresponding to the second display partition, and send the gamma voltage of the pixels located in the third display partition to the source driver circuit corresponding to the third display partition.
  • an embodiment of the present application provides a method for driving a display panel. Since the driving circuit can obtain the gamma correction data of each display partition in a plurality of display partitions, and the gamma correction data of the plurality of display partitions is obtained by gamma correction of at least one display partition, the display panel is driven based on the gamma correction data of each display partition, thereby ensuring that the brightness of the display panel is relatively uniform.
  • the gamma voltage of each pixel is determined based on the position of the pixel, the first correction voltage and the second correction voltage, a smooth transition between the luminous brightness of adjacent pixels can be ensured during the display process, thereby ensuring a better display effect of the display panel.
  • the embodiment of the present application provides a driving circuit of a display panel, which can execute the driving method of the display panel provided by the above method embodiment.
  • the display panel includes: a plurality of display partitions.
  • the driving circuit 120 includes: a timing control circuit 1201 and a source driving module 1202 .
  • the timing control circuit 1201 is used to: obtain gamma correction data for each display partition in a plurality of display partitions, wherein the gamma correction data for the plurality of display partitions is obtained by performing gamma correction on at least one display partition in the plurality of display partitions; for each pixel in the display panel, determine a first correction voltage corresponding to a target grayscale to be displayed by the pixel based on the gamma correction data of a first display partition in which the pixel is located; determine at least one second correction voltage corresponding to the target grayscale based on the gamma correction data of at least one second display partition adjacent to the first display partition; determine a gamma voltage of the pixel based on the first correction voltage, at least one second correction voltage, and the position of the pixel in the display panel, and send the gamma voltage of the pixel to a source drive module.
  • the source driving electric module 1202 is used to drive the pixels to display a target gray scale based on the gamma voltage.
  • timing control circuit 1201 may be used for:
  • the gamma voltage of the pixel is determined.
  • the gamma correction data is a voltage correspondence relationship between grayscale and gamma voltage
  • the first correction voltage and at least one second correction voltage are gamma voltages corresponding to the target grayscale.
  • the timing control circuit 1201 can be used for:
  • the position of the pixel in the display panel is brought into the mapping relationship to obtain the gamma voltage of the pixel.
  • timing control circuit 1201 may be used for:
  • the voltage offset value corresponding to any grayscale in the corresponding relationship of the offset values is an offset value of the gamma voltage corresponding to any grayscale in the voltage corresponding relationship relative to the target display partition;
  • the voltage correspondence of the other display partition is obtained according to the offset value correspondence of the other display partition and the voltage correspondence of the target display partition.
  • the storage space occupied by the voltage offset value is smaller than the storage space occupied by the gamma voltage.
  • timing control circuit 1201 may be used for:
  • gamma correction is performed on the display partition to obtain a voltage correspondence relationship between the gray scale of the display partition and the gamma voltage.
  • timing control circuit 1201 may be used for:
  • gamma correction is performed on the target display partition to obtain a voltage correspondence relationship between the grayscale of the target display partition and the gamma voltage
  • the voltage correspondence of the other display partitions is determined based on the voltage correspondence of the target display partition and the offset value correspondence of the remaining display partitions to which the other display partitions correspond.
  • the gamma correction data of the target display partition among the multiple display partitions is a voltage correspondence relationship between grayscale and gamma voltage, and a corresponding relationship between grayscale and offset value of voltage offset value
  • the gamma correction data of each other display partition except the target display partition among the multiple display partitions is an offset value correspondence relationship between grayscale and voltage offset value
  • the voltage offset value corresponding to any grayscale in the offset value correspondence relationship is an offset value of the gamma voltage corresponding to any grayscale in the voltage correspondence relationship relative to the target display partition
  • the first correction voltage and at least one second correction voltage are both voltage offset values corresponding to the target grayscale
  • the timing control circuit 1201 can be used for:
  • the gamma voltage of the pixel is determined based on the voltage offset value of the pixel and the gamma voltage corresponding to the target gray scale in the voltage correspondence relationship.
  • multiple display partitions are arranged in an array.
  • the display device to which the display panel belongs includes: a plurality of source driving circuits;
  • Each display partition corresponds to at least one source driving circuit and is connected to the corresponding at least one source driving circuit.
  • the timing control circuit 1201 may also be configured to: determine a display partition adjacent to the first display partition and closest to the pixel as the second display partition.
  • the difference in actually measured brightness of each pixel in each display partition is smaller than a brightness threshold, and the difference in actually measured brightness of any two pixels in two adjacent display partitions is larger than the brightness threshold.
  • the multiple display partitions are arranged in multiple rows and columns;
  • the widths of the display partitions in the same row are equal, and the widths of the display partitions are parallel to the extending direction of the pixel columns of the display panel;
  • the lengths of the display partitions in the same column are equal, and the lengths of the display partitions are parallel to the extending direction of the pixel rows of the display panel.
  • any two display partitions among the multiple display partitions have the same length and the same width.
  • the timing control circuit 1201 may also be used to: determine a display partition that is adjacent to the first display partition in the extending direction of the pixel row of the display panel and is closest to the pixel as the first second display partition;
  • the display partitions adjacent to the first second display partition and the second second display partition are determined as the third second display partition.
  • an embodiment of the present application provides a method for driving a display panel. Since the driving circuit can obtain the gamma correction data of each display partition in a plurality of display partitions, and the gamma correction data of the plurality of display partitions is obtained by gamma correction of at least one display partition, the display panel is driven based on the gamma correction data of each display partition, thereby ensuring that the brightness of the display panel is relatively uniform.
  • the gamma voltage of each pixel is determined based on the position of the pixel, the first correction voltage and the second correction voltage, a smooth transition between the luminous brightness of adjacent pixels can be ensured during the display process, thereby ensuring a better display effect of the display panel.
  • An embodiment of the present application provides a driving circuit for a display panel, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor.
  • the driving method for the display panel provided in the above method embodiment is implemented, such as the driving method for the display panel shown in FIG. 2 or FIG. 3 .
  • the display device 100 includes: a display panel 110 , and a driving circuit 120 of the display panel provided in the above embodiment.
  • the display device may be a vehicle-mounted display device (e.g., a central control display screen) or a laptop computer.
  • the size of the display panel is greater than a size threshold (e.g., 10 inches), and the display panel may be an organic light-emitting diode (OLED) display panel.
  • OLED organic light-emitting diode
  • An embodiment of the present application provides a computer storage medium, which stores instructions, and the instructions are loaded and executed by a processor to implement a display panel driving method provided in the above method embodiment, such as the display panel driving method shown in Figure 2 or Figure 3.
  • An embodiment of the present application provides a computer program product, which includes computer instructions, which are loaded and executed by a processor to implement a display panel driving method provided in the above method embodiment, such as the display panel driving method shown in Figure 2 or Figure 3.
  • the terms “first”, “second”, etc. are used to distinguish the same or similar items with substantially the same effects and functions. It should be understood that there is no logical or temporal dependency between “first”, “second”, and “nth”, nor is there a limitation on the quantity and execution order.
  • the first gamma correction data may be referred to as the second gamma correction data, and similarly, the second gamma correction data may be referred to as the first gamma correction data.

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Abstract

本申请公开了一种显示面板的驱动方法及驱动电路、显示设备，涉及显示技术领域。由于驱动电路能够获取多个显示分区中每个显示分区的伽马校正数据，且多个显示分区的伽马校正数据是对至少一个显示分区进行伽马校正得到的，因此基于各个显示分区的伽马校正数据驱动显示面板，能够确保显示面板的亮度较为均一。并且，由于每个像素的伽马电压是基于该像素的位置，第一校正电压和第二校正电压确定的，因此可以确保在显示过程中相邻像素的发光亮度之间能够平滑过渡，从而可以确保显示面板的显示效果较好。

Description

显示面板的驱动方法及驱动电路、显示设备 技术领域
本申请涉及显示技术领域，特别涉及一种显示面板的驱动方法及驱动电路、显示设备。
背景技术
显示装置一般包括显示面板和驱动电路。该驱动电路能够通过走线与该显示面板中的多个像素连接，并为该多个像素提供驱动信号，以驱动该多个像素发光。
对于中大尺寸(例如大于10寸)的显示面板，由于该显示面板的不同区域的像素与驱动电路之间的走线长度差异较大，因此不同区域的像素接收到的驱动信号的电压存在差异。
发明内容
本申请提供了一种显示面板的驱动方法及驱动电路、显示设备，所述技术方案如下：
一方面，提供了一种显示面板的驱动方法，所述显示面板包括：多个显示分区；所述方法包括：
获取所述多个显示分区中每个显示分区的伽马校正数据，所述多个显示分区的伽马校正数据是对所述多个显示分区中的至少一个显示分区进行伽马校正得到的；
对于所述显示面板中的每个像素，基于所述像素所在的第一显示分区的伽马校正数据，确定所述像素待显示的目标灰阶对应的第一校正电压；
基于与所述第一显示分区相邻的至少一个第二显示分区的伽马校正数据，确定所述目标灰阶对应的至少一个第二校正电压；
根据所述第一校正电压，所述至少一个第二校正电压，以及所述像素在所述显示面板中的位置，确定所述像素的伽马电压；
基于所述伽马电压驱动所述像素显示所述目标灰阶。
另一方面，提供了一种显示面板的驱动电路，所述显示面板包括：多个显示分区；所述驱动电路包括：时序控制电路和源极驱动模组；
所述时序控制电路用于：获取所述多个显示分区中每个显示分区的伽马校正数据，所述多个显示分区的伽马校正数据是对所述多个显示分区中的至少一个显示分区进行伽马校正得到的；
对于所述显示面板中的每个像素，基于所述像素所在的第一显示分区的伽马校正数据，确定所述像素待显示的目标灰阶对应的第一校正电压；
基于与所述第一显示分区相邻的至少一个第二显示分区的伽马校正数据，确定所述目标灰阶对应的至少一个第二校正电压；
根据所述第一校正电压，所述至少一个第二校正电压，以及所述像素在所述显示面板中的位置，确定所述像素的伽马电压，并将所述像素的伽马电压发送至所述源极驱动模组；
所述源极驱动电模组，用于基于所述伽马电压驱动所述像素显示所述目标灰阶。
又一方面，提供了一种显示面板的驱动电路，所述驱动电路包括：存储器，处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如上述方面所述的显示面板的驱动方法。
再一方面，提供了一种显示设备，所述显示设备包括：显示面板，以及上述方面所述的显示面板的驱动电路。
再一方面，提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，所述计算机程序由处理器加载并执行以实现如上述方面所述的显示面板的驱动方法。
再一方面，提供了一种包含指令的计算机程序产品，当所述计算机程序产品在所述计算机上运行时，使得所述计算机执行上述方面所述的显示面板的驱动方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请 的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是相关技术中的显示面板的显示效果的示意图；
图2是本申请实施例提供的一种显示面板的驱动方法的流程图；
图3是本申请实施例提供的另一种显示面板的驱动方法的流程图；
图4是本申请实施例提供的一种显示面板的多个显示分区的排布示意图；
图5是本申请实施例提供的另一种显示面板的多个显示分区的排布示意图；
图6是本申请实施例提供的又一种显示面板的多个显示分区的排布示意图；
图7是本申请实施例提供的一种光学设备采集显示分区的显示亮度的示意图；
图8是本申请实施例提供的一种基于各个显示分区的电压对应关系拟合得到的伽马曲线，以及伽马曲线的伽马值的示意图；
图9是本申请实施例提供的一种显示分区的LUT的示意图；
图10是本申请实施例提供的一种显示过程中的驱动电路驱动像素的示意图；
图11是本申请实施例提供的一种驱动电路的结构示意图；
图12是本申请实施例提供的一种显示设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
对于中大尺寸的显示面板(panel)，由于该显示面板的不同区域的像素与驱动电路之间的走线长度差异较大，而走线长度会影响走线的电阻，因此导致连接驱动电路与不同区域的像素的走线的电阻相差较大。又由于驱动电路提供的驱动信号经过走线传输后通常会因走线的电阻产生电压降(IR drop)，因此连接驱动电路与不同区域的像素的走线所产生的电压降不同，从而导致不同区域的像素实际接收到的驱动信号的电压存在较大差异，即显示面板的不同区域的负载(Loading)状态存在较大差异，继而导致显示面板的显示亮度的均一性较低。且在低灰阶低亮度下，因不同区域的像素的充电时间存在较大差异或受其他信号串扰，会进一步导致显示面板的显示亮度的均一性较低。
相关技术中，可以在显示面板中选取一像素(例如中心像素)，并基于该像素的发光亮度(和色度)对显示面板进行伽马校正，即进行伽马调节(gamma tuning)，以改善显示面板的亮度不均匀的问题。例如，可以依次从255灰阶到0灰阶，基于该像素在不同灰阶下的发光亮度，调节各个灰阶对应的默认伽马电压，从而使得该像素在调节后的伽马电压驱动下，该像素的实际发光亮度可以等于理想发光亮度，色度也可以满足要求。该理想发光亮度可以基于像素待显示的灰阶确定。默认伽马电压是预先存储的。
但是，由于中大尺寸的显示面板的不同区域(例如边缘区域和中心区域)的Loading状态存在较大差异，因此仅以显示面板中的一个像素为基准进行伽马校正，只能确保该像素所在的目标区域的亮度较为均匀，显示面板中除该目标区域外的其他区域的亮度依然差异较大。
例如，参见图1，图1示出了一种采用相关技术中的方式对显示面板进行伽马校正后，显示面板的显示效果的示意图。从图1可以看出，该显示面板的不同区域的显示亮度不同。由此可见，采用相关技术中的方式对显示面板的显示亮度进行改善的效果较差。
本申请实施例提供了一种显示面板的驱动方法，该方法应用于显示面板的驱动电路，该显示面板包括：多个显示分区。参见图2，该方法包括：
步骤101、获取多个显示分区中每个显示分区的伽马校正数据。
其中，多个显示分区(block)的伽马校正数据对多个显示分区中的至少一个显示分区进行伽马校正得到的。例如，多个显示分区的伽马校正数据是分别对多个显示分区进行伽马校正后得到。或者，多个显示分区的伽马校正数据是对该多个显示分区中的目标显示分区进行伽马校正后得到的。该目标显示分区可以为多个显示分区中的任一显示分区。
在本申请实施例中，多个显示分区中每个显示分区的伽马校正数据可以为该显示分区的灰阶与伽马电压的电压对应关系。或者，多个显示分区中目标显示分区的伽马校正数据可以为该目标显示分区的灰阶与伽马电压的电压对应关系，以及灰阶与电压偏移值的偏移值对应关系。多个显示分区中除目标显示分区外的每个其他显示分区的伽马校正数据为该其他显示分区的灰阶与电压偏移值的偏移值对应关系。该偏移值对应关系中任一灰阶对应的电压偏移值为相对 于该目标显示分区的电压对应关系中该任一灰阶对应的伽马电压的偏移值。
步骤102、对于显示面板中的每个像素，基于该像素所在的第一显示分区的伽马校正数据，确定该像素待显示的目标灰阶对应的第一校正电压。
在本申请实施例中，对于显示面板中的每个像素(为了便于描述，后文称为目标像素)，驱动电路基于该目标像素在显示面板中的位置，以及多个显示分区在显示面板中的位置，确定该目标像素所在的第一显示分区。之后，驱动电路可以基于该目标像素待显示的目标灰阶，以及该第一显示分区的伽马校正数据，确定该目标灰阶对应的第一校正电压。
可以理解的是，若每个显示分区的伽马校正数据为该显示分区的电压对应关系，则驱动电路基于第一显示分区的伽马校正数据确定的目标灰阶对应的第一校正电压为该目标灰阶对应的第一伽马电压。
若多个显示分区中目标显示分区的伽马校正数据为该目标显示分区的电压对应关系，以及偏移值对应关系，其他显示分区的伽马校正数据为该其他显示分区的偏移值对应关系，则驱动电路基于第一显示分区的伽马校正数据确定的目标灰阶对应的第一校正电压为该目标灰阶对应的第一电压偏移值。
步骤103、基于与第一显示分区相邻的至少一个第二显示分区的伽马校正数据，确定目标灰阶对应的至少一个第二校正电压。
驱动电路可以基于多个显示分区在显示面板中的位置，以及第一显示分区的位置，确定至少一个第二显示分区，每个第二显示分区均与第一显示分区相邻。之后，对于至少一个第二显示分区中的每个第二显示分区，驱动电路可以基于目标像素待显示的目标灰阶，以及该第二显示分区的伽马校正数据，确定该目标灰阶对应的第二校正电压。
可以理解的是，若每个显示分区的伽马校正数据为该显示分区的电压对应关系，则目标灰阶对应的第二校正电压为该目标灰阶对应的第二伽马电压。若多个显示分区中目标显示分区的伽马校正数据为该目标显示分区的电压对应关系，以及偏移值对应关系，其他显示分区的伽马校正数据为该其他显示分区的偏移值对应关系，则目标灰阶对应的每个第二校正电压为该目标灰阶对应的第二电压偏移值。
步骤104、根据第一校正电压，至少一个第二校正电压，以及像素在显示面板中的位置，确定该像素的伽马电压。
在本申请实施例中，若第一校正电压和至少一个第二校正电压中的每个校正电压均为目标灰阶对应的伽马电压，则驱动电路可以直接根据该第一校正电压，至少一个第二校正电压，以及目标像素在显示面板中的位置，得到该目标像素的伽马电压。
若第一校正电压和至少一个第二校正电压中的每个校正电压均为目标灰阶对应的电压偏移值，则驱动电路可以先根据第一校正电压和至少一个第二校正电压，以及目标像素的位置，确定该目标像素的电压偏移值。之后，驱动电路可以基于目标像素的电压偏移值，以及目标显示分区的电压对应关系中目标灰阶对应的伽马电压，确定目标像素的伽马电压。例如，该目标像素的伽马电压可以为目标像素的电压偏移值与该伽马电压之和。
在本申请实施例中，驱动电路可以先采用线性差值算法处理第一校正电压，至少一个第二校正电压，第一显示分区的中心像素在显示面板中的位置，以及每个第二显示分区的中心像素在显示面板中的位置，得到校正电压与像素位置的映射关系。然后，驱动电路可以基于目标像素在显示面板中的位置及该映射关系，确定该目标像素的目标伽马电压。
或者，驱动电路中可以预先存储有电压确定模型。驱动电路可以将第一校正电压、至少一个第二校正电压和目标像素在显示面板中位置输入至该电压确定模型中，以得到该目标像素的伽马电压。其中，该电压确定模型可以是基于多组样本数据预先训练得到的。每组样本数据包括：样本面板中的样本像素的样本电压，基于该样本像素所在的第一样本分区的伽马校正数据确定的第一样本电压，基于至少一个第二样本分区的伽马校正数据确定的至少一个第二样本电压，以及该样本像素在样本面板中的位置。每个第二样本分区与第一样本分区相邻。样本电压可以为样本伽马电压或样本电压偏移值。
可以理解的是，电压确定模型可以包括：第一电压确定子模型和第二电压确定子模型。第一电压确定子模型是基于样本伽马电压训练得到的，第二电压确定子模型是基于样本电压偏移值训练得到的。若第一校正电压和第二校正电压均为伽马电压，则驱动电路可以采用第一电压确定子模型处理第一校正电压和第二校正电压，以得到目标像素的伽马电压。若第一校正电压和第二校正电压均为电压偏移值，则驱动电路可以采用第二电压确定子模型处理校正电压和第二校正电压，以得到目标像素的伽马电压。
步骤105、基于像素的伽马电压驱动像素显示目标灰阶。
驱动电路得到目标像素的伽马电压后，即可基于该目标伽马电压生成驱动信号以驱动该目标像素显示目标灰阶。
综上所述，本申请实施例提供了一种显示面板的驱动方法，由于驱动电路能够获取多个显示分区中每个显示分区的伽马校正数据，且多个显示分区的伽马校正数据是对至少一个显示分区进行伽马校正得到的，因此基于各个显示分区的伽马校正数据驱动显示面板，能够确保显示面板的亮度较为均一。
并且，由于每个像素的伽马电压是基于该像素的位置，第一校正电压和第二校正电压确定的，因此可以确保在显示过程中相邻像素的发光亮度之间能够平滑过渡，从而可以确保显示面板的显示效果较好。
本申请实施例以多个显示分区每个显示分区的伽马校正数据为该显示分区的电压对应关系为例，对本申请实施例提供的显示面板的驱动方法进行示例性说明。该方法可以应用于显示面板的驱动电路，该显示面板包括：多个显示分区。参见图3，该方法可以包括：
步骤201、获取多个显示分区中每个显示分区的灰阶与伽马电压的电压对应关系。
其中，多个显示分区的电压对应关系是对多个显示分区中的至少一个显示分区进行伽马校正得到的。例如，多个显示分区中每个显示分区的电压对应关系是对该显示分区进行伽马校正后得到的，即多个显示分区的电压对应关系是分别对多个显示分区进行伽马校正后得到。
或者，多个显示分区的电压对应关系是对该多个显示分区中的目标显示分区进行伽马校正后得到的。该目标显示分区可以为多个显示分区中的任一显示分区。如驱动电路可以获取对目标显示分区进行伽马校正后得到的目标显示分区的灰阶与伽马电压的电压对应关系，以及多个显示分区中除目标显示分区外的每个其他显示分区的灰阶与电压偏移值(offset)的偏移值对应关系，然后驱动电路基于该电压对应关系以及任一其他显示分区的偏移值对应关系，确定该任一其他显示分区的电压对应关系。该偏移值对应关系中任一灰阶对应的电压偏移值为相对于目标显示分区的电压对应关系中该任一灰阶对应的伽马电压的偏移值。即驱动电路可以基于目标显示分区的电压对应关系，以及其他显示分 区的偏移值对应关系，计算得到其他显示分区的电压对应关系。
在本申请实施例中，该多个显示分区是在对显示面板进行伽马校正前预先划分好的，且多个显示分区可以阵列排布。例如，多个显示分区可以呈一行多列排布，或者呈多行多列排布。且多个显示分区的排布方式取决于该多个显示分区的划分方式。
在一种可选的实现方式中，参见图4，显示面板110所属的显示设备100包括：多个源极(source)驱动(driver)电路120a(图4示出了三个源极驱动电路120a)。显示面板的多个显示分区可以根据多个源极驱动电路划分得到，至少一个源极驱动电路对应一个显示分区。由于多个源极驱动电路通常沿着显示面板的像素行(即图4所示的X方向)延伸方向排布，因此基于多个源极驱动电路划分得到的多个显示分区也可以按照显示面板的像素行方向排布，即呈一行多列排布。每个显示分区可以与至少一个(例如一个)源极驱动电路对应，且可以与对应的至少一个源极驱动电路连接。
可以理解的是，这种实现方式中，多个显示分区的总数取决于多个源极驱动电路的总数，以及每个显示分区所对应的源极驱动电路的总数。
示例的，请继续参见图4，假设多个源极驱动电路的总数为三，每个显示分区对应一个源极驱动电路，则显示面板100可以被划分为图4所示的分区1、分区2和分区3等3个显示分区。
由于每个显示分区可以对应一个源极驱动电路，因此可以便于对该显示分区进行伽马校正。
在另一种可选的实现方式中，显示面板的多个显示分区可以基于显示面板在伽马校正前的显示亮度的差异划分得到。相应的，在进行伽马校正之前，划分得到的多个显示分区中的每个显示分区中的各个像素的实测亮度的差值小于亮度阈值，且相邻两个显示分区中的任意两个像素的实测亮度的差值大于亮度阈值。
可以理解的是，由于大尺寸(例如尺寸大于10寸)显示面板中的多个区域的显示亮度通常相差较大，因此基于显示亮度的差异通常能够将显示面板划分为呈多行多列排布的多个显示分区。例如，参见图5和图6，多个显示分区(即图5或图6所示的分区1至分区9)可以呈三行三列排布。或者，多个显示分区可以呈九行九列排布，又或者多个显示分区可以呈两行七列排布。
在本申请实施例中，在基于显示面板的显示亮度的差异划分得到多个显示分区的实现方式中，参见图5和图6，位于同一行的各个显示分区的宽度相等，位于同一列的各个显示分区的长度可以相等。如此，可以便于对多个显示分区中至少一个显示分区进行伽马校正。
其中，每个显示分区的宽度可以平行于显示面板的像素列延伸方向(即图5和图6所示的Y方向)，每个显示分区的长度可以平行于显示面板的像素行延伸方向(即图5和图6所示的X方向)。
可以理解的是，这种实现方式，位于同一行的各个显示分区的长度可以根据显示面板的显示亮度的差异灵活调整，位于同一列的各个显示分区的宽度也可以灵活调整。相应的，各个显示分区在显示面板中的位置可以灵活调整。由此可见，基于显示亮度的差异对显示面板进行划分的划分方式的灵活性较高，能够适用于亮度差异不同的显示面板。
可选的，参见图5，多个显示分区中任意两个显示分区的长度相等，且宽度也相等。
可选的，多个显示分区中每个显示分区的形状可以为矩形，如此可以便于对多个显示分区中的至少一个显示分区进行伽马校正。每个显示分区的尺寸可以小于尺寸阈值。例如，该尺寸阈值可以为10寸。如此，可以确保基于校正后得到的多个显示分区的电压对应关系驱动显示面板后，显示面板的显示亮度较为均一。
步骤202、对于显示面板中的每个目标像素，基于该目标像素所在的第一显示分区的电压对应关系，确定该目标像素待显示的目标灰阶对应的第一伽马电压。
在本申请实施例中，对于显示面板中的每个目标像素，驱动电路基于该目标像素在显示面板中的位置，以及多个显示分区在显示面板中的位置，确定该目标像素所在的第一显示分区。之后，驱动电路可以基于目标像素待显示的目标灰阶，从该第一显示分区的灰阶与伽马电压的电压对应关系中，确定该目标灰阶对应的第一伽马电压。
其中，每个显示分区在显示面板中的位置，以及每个像素在显示面板中的位置均可以是驱动电路预先存储的。多个显示分区中每个显示分区在显示面板中的位置可以由该显示分区的左上像素在显示面板中的位置，以及右下像素在 显示面板中的位置表征。每个像素在显示面板中的位置可以是指：该像素在显示面板所在坐标系中的坐标。该坐标系可以是以显示面板上一点(例如显示面板的左上顶点)为坐标原点，以显示面板的像素行延伸方向为横轴延伸方向，以显示面板的像素列延伸方向为纵轴延伸方向所建立的坐标系。
步骤203、基于与第一显示分区相邻的至少一个第二显示分区的电压对应关系，确定目标像素待显示的目标灰阶对应的至少一个第二伽马电压。
驱动电路可以基于多个显示分区在显示面板中的位置，以及第一显示分区在显示面板中的位置，确定至少一个第二显示分区。每个第二显示分区均与第一显示分区相邻。之后，对于每个第二显示分区，驱动电路可以基于目标像素待显示的目标灰阶，从该第二显示分区的灰阶与伽马电压的电压对应关系中，确定该目标灰阶对应的第二伽马电压。
在本申请实施例中，驱动电路确定至少一个第二显示分区的过程可以包括：
对于多个显示分区呈一行多列排布的场景，至少一个第二显示分区的个数为一个，驱动电路可以将与第一显示分区相邻且与目标像素距离最近的显示分区确定为第二显示分区。
可以理解的是，若与第一显示分区相邻的显示分区的个数等于2，则驱动电路可以将两个相邻的显示分区中，与目标像素距离较近的显示分区确定为第二显示分区。若与第一显示分区相邻的显示分区的个数等于1，则驱动电路可以直接将一个相邻的显示分区确定为第二显示分区。
示例的，请继续参见图4，假设目标像素为分区1中的像素P1，即第一显示分区为分区1，由于仅分区2与分区1相邻，即与分区1相邻的显示分区的个数为1，因此驱动电路可以直接将分区2确定为第二显示分区。
假设目标像素为分区2中的像素P2，即第一显示分区为分区2，此时分区1和分区3均与分区2相邻，但由于分区1到像素P2的距离，比分区3到像素P2的距离近，因此驱动电路可以将分区1确定为第二显示分区。
同理，假设目标像素为分区2中的像素P3，由于分区3到像素P2的距离较近，因此驱动电路可以将分区3确定为第二显示分区。
对于多个显示分区呈多行多列排布的场景，至少一个第二显示分区的个数为三个，驱动电路可以先将在像素行延伸方向上与第一显示分区相邻且与目标像素距离最近的显示分区确定为第一个第二显示分区，并将在像素列延伸方向 上与第一显示分区相邻且与目标像素距离最近的显示分区确定为第二个第二显示分区分区。之后，驱动电路可以将分别与第一个第二显示分区以及第二个第二显示分区相邻的显示分区确定为第三个第二显示分区。由此可见，三个第二显示分区与第一显示分区呈矩形排布。
可以理解的是，若与第一显示分区相邻的显示分区的个数大于3，则驱动电路可以先确定第一个第二显示分区和第二个第二显示分区，再确定第三个第二显示分区。若与第一显示分区相邻的显示分区的个数等于3，则驱动电路可以直接将与第一显示分区相邻的三个显示分区确定为三个第二显示分区。
示例的，请继续参见图5，假设目标像素为分区1中的像素P4，即分区1为第一显示分区，与分区1相邻的显示分区的个数为3，因此驱动电路可以直接将与分区1相邻的分区2、分区4和分区5分别确定为第二显示分区。
假设目标像素为分区4中的像素P5，即分区4为第一显示分区，与分区4相邻的显示分区的个数5大于3。由于在像素行延伸方向上仅分区5与分区4相邻，因此驱动电路可以将分区5确定为第一个第二显示分区。由于在像素列延伸方向上，分区1与像素P5的距离大于分区7与像素P5的距离，因此驱动电路可以将分区1确定为第二个第二显示分区。由于分区2分别与分区1、分区4以及分区5相邻，因此驱动电路可以将分区2确定为第三个第二显示分区。
同理，假设目标像素为分区5中的像素P6，即分区5为第一显示分区，由于在像素行延伸方向上分区6与分区5相邻且与像素P6的距离最近，在像素列方向上分区2与分区5相邻且与像素P6的距离最近，分区3分别与分区2、分区5以及分区6相邻，因此驱动电路可以将分区6确定为第一个第二显示分区，将分区2确定为第二个第二显示分区，并将分区3确定为第三个第二显示分区。
步骤204、采用线性差值算法处理第一伽马电压，至少一个第二伽马电压，第一显示分区的中心像素在显示面板中的位置，以及每个第二显示分区的中心像素在显示面板中的位置，得到伽马电压与像素位置的映射关系。
在本申请实施例中，由于在对任一显示分区进行伽马校正时，通常是将该显示分区的中心像素的发光亮度作为该显示分区的显示亮度，因此驱动电路可以采用线性差值算法处理第一伽马电压，至少一个第二伽马电压，第一显示分区的中心像素在显示面板中的位置，以及每个第二显示分区的中心像素在显示面板中的位置，得到伽马电压与像素位置的映射关系。
可以理解的是，若多个显示分区呈一行多列排布，则驱动电路得到的伽马电压与像素位置的映射关系是指：伽马电压与像素横坐标的映射关系。
若多个显示分区呈多行多列排布，则驱动电路得到伽马电压与像素位置的映射关系的过程可以包括：驱动电路可以先采用线性差值算法处理第一显示分区的中心像素的位置，第一伽马电压，与第一显示分区沿像素行(或像素列)延伸方向排布的一个第二显示分区的中心像素的位置，以及基于该第二显示分区的电压对应关系确定的第二伽马电压，得到第一子伽马电压与像素横坐标(或像素列坐标)的第一子映射关系，再采用线性差值算法处理另外两个第二显示分区的中心像素的位置，以及另外两个伽马电压，得到第二子伽马电压与像素横坐标(或像素列坐标)的第二子映射关系。之后，驱动电路可以再次采用线性差值算法处理第一子映射关系和第二子映射关系，得到伽马电压与像素位置的映射关系。
本申请实施例以多个显示分区如图5所示，且目标像素为图5所示的像素P5为例，即第一显示分区为分区4，三个第二显示分区分别为分区1，分区2和分区5为例，对驱动电路得到伽马电压与像素位置的对应关系进行示例性说明：
假设多个显示分区中的分区1的中心像素的位置为(x 1，y 1)，分区2的中心像素的位置为(x 2，y 1)，分区4的中心像素的位置为(x 1，y 2)，分区5的中心像素的位置为(x 2，y 2)。假设基于分区1的电压对应关系确定的第二伽马电压为V 1，基于分区2的电压对应关系确定的第二伽马电压为V 2，第一伽马电压为V 3，基于分区5的电压对应关系确定的第二伽马电压为V 4。
驱动电路可以基于第一伽马电压V 3，分区4的中心像素的位置(x 1，y 2)，第二伽马电压V 4，以及分区5的中心像素的位置(x 2，y 2)，得到第一子映射关系，并基于第二伽马电压V 1，分区1的中心像素的位置(x 1，y 1)，第二伽马电压V 2，以及分区2的中心像素的位置(x 2，y 1)，得到第二子映射关系。其中，第一子映射关系满足下述公式(1)，第二子映射关系满足下述公式(2)。
Figure PCTCN2022122568-appb-000001
Figure PCTCN2022122568-appb-000002
之后，驱动电路可以第一子映射关系和第二子映射关系，即上述公式(1) 和公式(2)得到公式(3)所示的伽马电压与像素位置的对应关系。
Figure PCTCN2022122568-appb-000003
公式(1)和公式(2)中x为像素横坐标，公式(3)中的V为伽马电压，y为像素纵坐标。
步骤205、基于目标像素在显示面板中的位置及映射关系，确定该目标像素的伽马电压。
驱动电路得到的伽马电压与像素位置的映射关系后，即可基于将目标像素在显示面板中的位置代入该映射关系中，继而即可得到目标像素的伽马电压。
步骤206、基于伽马电压驱动目标像素显示目标灰阶。
驱动电路得到目标像素的伽马电压后，即可基于该伽马电压生成驱动信号以驱动该像素显示目标灰阶。
在本申请实施例中，驱动电路可以通过多种可选的实现方式获取多个显示分区中每个显示分区的灰阶与伽马电压的电压对应关系，即驱动电路可以通过多种可选的实现方式执行步骤201。
作为第一种可选的实现方式，驱动电路可以分别对多个显示分区进行伽马校正，以得到多个显示分区中每个显示分区的电压对应关系。即多个显示分区的电压对应关系是分别对多个显示分区进行伽马校正得到的。如此，可以确保确定的多个显示分区的电压对应关系的准确性较高。
这种实现方式下，如图7所示，驱动电路可以与用于采集显示分区的显示亮度的光学设备(例如色彩分析仪)连接，例如图7所示的光学设备200。对于多个显示分区中的每个显示分区，光学设备200可以将采集到该显示分区的显示亮度发送至驱动电路。然后，驱动电路可以基于获取到的该显示分区的显示亮度，对显示分区进行伽马校正，以得到显示分区的灰阶与伽马电压的电压对应关系。其中，显示分区的显示亮度可以为该显示分区的中心像素的发光亮度。
作为第二种可选的实现方式，驱动电路可以仅对多个显示分区中的一个显示分区进行伽马校正，以得到多个显示分区的电压对应关系。如此，可以提高多个显示分区的电压对应关系的获取效率。
这种实现方式下，驱动电路可以获取参考面板包括的多个显示分区中参考显示分区的灰阶与伽马电压的电压对应关系，以及参考面板的多个显示分区中 除参考显示分区外的每个剩余显示分区的灰阶与电压偏移值的偏移值对应关系。其中，每个剩余显示分区的偏移值对应关系中任一灰阶对应的电压偏移值为相对于参考显示分区的电压对应关系中任一灰阶对应的伽马电压的偏移值。该参考显示分区的电压对应关系，以及每个剩余显示分区的偏移值对应关系均可以是校正设备对参考面板进行伽马校正后获取并发送至驱动电路的。该参考面板的型号与显示面板的型号相同。
然后，驱动电路可以获取显示面板包括的多个显示分区中目标显示分区的显示亮度，并基于目标显示分区的显示亮度，对目标显示分区进行伽马校正，得到目标显示分区的灰阶与伽马电压的电压对应关系。其中，显示面板的多个显示分区的总数等于参考面板的多个显示分区的总数，且显示面板与参考面板重合后，显示面板的目标显示分区与参考面板的参考显示分区重合，显示面板的每个其他显示分区与参考面板中的一个剩余显示分区重合。即参考面板的多个显示分区与显示面板的多个显示分区一一对应。A与B重合是指：A在B所在平面上的正投影与B重合。
之后，对于显示面板中除目标显示分区外的每个其他显示分区，驱动电路可以基于目标显示分区的电压对应关系，以及该其他显示分区所对应的剩余显示分区的偏移值对应关系，确定其他显示分区的电压对应关系。即驱动电路可以将该其他显示分区所对应的剩余显示分区的偏移值对应关系，确定为该其他显示分区的偏移值对应关系，从而得到该其他显示分区的电压对应关系。其中，该其他显示分区所对应的剩余显示分区相对于参考显示分区的位置，与该其他显示分区相对于目标显示分区的位置相同。
例如，驱动电路可以将目标显示分区的电压对应关系中任一灰阶对应的伽马电压，与该偏移值对应关系中该任一灰阶对应的电压偏移值之和，确定为该其他显示分区的电压对应关系中的该任一灰阶对应的伽马电压。
可以理解的是，对于通过对一个显示分区进行伽马校正以得到多个显示分区的电压对应关系的方式，驱动电路在得到每个其他显示分区的电压对应关系后，还可以对该其他显示分区的电压对应关系进行验证，以检测该其他显示分区的电压对应关系的准确性。例如，驱动电路可以以该其他显示分区的电压对应关系中任一灰阶对应的伽马电压驱动该其他显示分区，并接收光学设备此时采集到的该其他显示分区的实测显示亮度。若驱动电路确定该实测显示亮度与 理想显示亮度相等(或在误差范围内相等)，则可以确定计算得到该其他显示分区的对应关系较为准确。其中，理想显示亮度是基于该任一灰阶确定。
作为第三种可选的实现方式，驱动电路可以与校正设备连接，该校正设备可以对该至少一个显示分区进行伽马校正以得到多个显示分区的校正信息，并将得到该校正信息发送至驱动电路。驱动电路继而可以基于多个显示分区的校正信息得到多个显示分区中每个显示分区的电压对应关系。
其中，该校正信息可以包括：多个显示分区中每个显示分区的电压对应关系。这种情况下，驱动电路接收到校正信息后，即可直接获取到每个显示分区的电压对应关系。
或者，该校正信息可以包括：多个显示分区中目标显示分区的电压对应关系，以及多个显示分区中除目标显示分区之外的每个其他显示分区的灰阶与电压偏移值的偏移值对应关系。其中，该偏移值对应关系中任一灰阶对应的电压偏移值为相对于目标显示分区的电压对应关系中任一灰阶对应的伽马电压的偏移值。
这种情况下，驱动电路接收到校正信息后，可以获取多个显示分区中目标显示分区的灰阶与伽马电压的电压对应关系，以及多个显示分区中除目标显示分区之外的每个其他显示分区的灰阶与电压偏移值的偏移值对应关系。然后，对于每个其他显示分区，驱动电路根据其他显示分区的偏移值对应关系，以及目标显示分区的电压对应关系，得到其他显示分区的电压对应关系。例如，驱动电路可以将目标显示分区的电压对应关系中任一灰阶对应的伽马电压，与该其他显示分区的偏移值对应关系中该任一灰阶对应的伽马电压之和，确定为该其他显示分区的电压对应关系中该任一灰阶对应的伽马电压。
可以理解的是，校正设备对多个显示分区中每个显示分区进行伽马校正的过程，可以参考前文所述的驱动电路对每个显示分区进行伽马校正的相关实现过程，本申请实施例在此不再赘述。
还可以理解的是，基于每个显示分区的电压对应关系中的多个伽马电压与多个灰阶能够拟合得到一条伽马曲线。由于多个显示分区中每个显示分区的电压对应关系是对至少一个显示分区进行伽马校正后得到的，因此基于多个显示分区的电压对应关系拟合得到的多条伽马曲线的伽马值可能不同。
例如，参见图8，多个显示分区包括分区1至分区9，基于分区1的电压对 应关系拟合得到的伽马曲线的伽马值可以为1.8，基于分区2的电压对应关系拟合得到的伽马曲线的伽马值可以为2.0，基于分区3至分区9的电压对应关系拟合得到的伽马曲线的伽马值可以依次为：2.4、2.0、2.2、2.3、1.9、2.2和2.4。
在本申请实施例中，对于驱动电路对至少一个显示分区进行伽马校以得到多个显示分区的电压对应关系的实现方式(即前文所述的第一种实现方式和第二种实现方式)，驱动电路得到多个显示分区中每个显示分区的电压对应关系后，还可以在存储器中记录多个显示分区的对应关系。例如，可以以表格的形式记录显示分区的对应关系，该表格可以称为查找表(look up table，LUT)。
在第一种可选的示例中，驱动电路可以分别存储多个显示分区中每个显示分区的电压对应关系。
在第二种可选的示例中，驱动电路可以存储多个显示分区中目标显示分区的电压对应关系，并存储多个显示分区中除目标显示分区外的每个其他显示分区的灰阶与电压偏移值的偏移值对应关系。例如，假设多个显示分区为图4所示的三个显示分区，则驱动电路可以将分区2作为目标显示分区，并计算分区1和分区3中的每个分区相较于分区2的偏移值对应关系。如分区1的偏移值对应关系中任一灰阶对应的偏移值可以是：分区1的电压对应关系中该任一灰阶对应的伽马电压减去分区2的电压对应关系中该任一灰阶对应的伽马电压得到的差值。
由于电压偏移值所占用的存储空间小于伽马电压所占用的存储空间，因此采用第二种实施方式记录多个显示分区的对应关系的方式，能够有效节省驱动电路的内存。例如，一个电压偏移值可以占用8位(bit)，一个伽马电压可以占用12位。
可以理解的是，由于显示分区在不同灰阶和不同最大显示亮度下的显示情况不同，因此在伽马校正的过程中，通常可以分别针对不同的灰阶和不同的最大显示亮度对显示分区进行校正。且由于显示面板中的每个像素通常包括多个不同颜色的子像素，因此在伽马校正的过程中，通常可以分别针对不同颜色的的显示亮度对显示分区进行校正。
基于此，每个显示分区的电压对应关系可以包括：多个不同颜色下的子电压对应关系，每个子电压对应关系记录有：各个最大显示亮度和各个灰阶下的伽马电压。
示例的，假设多个显示分区包括九个分区，每个像素包括包括红色(red，R)子像素、绿色(green，G)子像素和蓝色(blue，B)子像素，多个灰阶包括0灰阶至1023灰阶，多个最大显示亮度中每个显示亮度的大小采用DBV控制，且DBV通常为12位，即4095阶。则驱动电路记录的分区九中的绿色子像素在不同最大显示亮度和不同灰阶下的伽马电压可以如图9所示。
在本申请实施例中，显示面板的驱动电路可以包括：时序控制(timer control，TCON)电路和源极驱动模组，该源极驱动模组包括前文所述的多个源极驱动电路。在显示过程中，参见图10，显示设备的时序控制电路可以从存储器中获取多个显示分区中至少一个显示分区的电压对应关系，并基于该至少一个电压对应关系确定每个显示分区中的像素的伽马电压。之后，该时序控制电路可以将该像素的伽马电压发送至源极驱动模组，以供该源极驱动模组驱动该像素发光。例如，时序控制电路可以将该像素的伽马电压发送至与该像素所属显示分区连接的源极驱动电路。
例如，请继续参见图10，假设多个显示分区为三个，且每个显示分区与一个源极驱动电路对应，则时序控制电路可以将位于第一个显示分区中的像素的伽马电压发送至该第一个显示分区对应的源极驱动电路，将位于第二个显示分区中的像素的伽马电压发送至该第二个显示分区对应的源极驱动电路，并将位于第三个显示分区中的像素的伽马电压发送至该第三个显示分区对应的源极驱动电路。
需要说明的是，本申请实施例提供的显示面板的驱动方法的步骤的先后顺序可以进行适当调整，步骤也可以根据情况进行相应增减。任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化的方法，都应涵盖在本申请的保护范围之内，因此不再赘述。
综上所述，本申请实施例提供了一种显示面板的驱动方法，由于驱动电路能够获取多个显示分区中每个显示分区的伽马校正数据，且多个显示分区的伽马校正数据是对至少一个显示分区进行伽马校正得到的，因此基于各个显示分区的伽马校正数据驱动显示面板，能够确保显示面板的亮度较为均一。
并且，由于每个像素的伽马电压是基于该像素的位置，第一校正电压和第二校正电压确定的，因此可以确保在显示过程中相邻像素的发光亮度之间能够平滑过渡，从而可以确保显示面板的显示效果较好。
本申请实施例提供了一种显示面板的驱动电路，该驱动电路可以执行上述方法实施例提供的显示面板的驱动方法。该显示面板包括：多个显示分区。参见图11，该驱动电路120包括：时序控制电路1201和源极驱动模组1202。
该时序控制电路1201用于：获取多个显示分区中每个显示分区的伽马校正数据，多个显示分区的伽马校正数据是对多个显示分区中的至少一个显示分区进行伽马校正得到的；对于显示面板中的每个像素，基于像素所在的第一显示分区的伽马校正数据，确定像素待显示的目标灰阶对应的第一校正电压；基于与第一显示分区相邻的至少一个第二显示分区的伽马校正数据，确定目标灰阶对应的至少一个第二校正电压；根据第一校正电压，至少一个第二校正电压，以及像素在显示面板中的位置，确定像素的伽马电压，并将像素的伽马电压发送至源极驱动模组。
该源极驱动电模组1202，用于基于伽马电压驱动像素显示目标灰阶。
可选的，该时序控制电路1201可以用于：
采用线性差值算法处理第一校正电压，至少一个第二校正电压，第一显示分区的中心像素在显示面板中的位置，以及每个第二显示分区的中心像素在显示面板中的位置，得到校正电压与像素位置的映射关系；
基于像素在显示面板中的位置及映射关系，确定像素的伽马电压。
可选的，伽马校正数据为灰阶与伽马电压的电压对应关系，第一校正电压和至少一个第二校正电压均为目标灰阶对应的伽马电压。该时序控制电路1201可以用于：
将像素在显示面板中的位置带入映射关系，得到像素的伽马电压。
可选的，该时序控制电路1201可以用于：
获取多个显示分区中目标显示分区的灰阶与伽马电压的电压对应关系；
获取多个显示分区中除目标显示分区之外的每个其他显示分区的灰阶与电压偏移值的偏移值对应关系，且偏移值对应关系中任一灰阶对应的电压偏移值为相对于目标显示分区的电压对应关系中任一灰阶对应的伽马电压的偏移值；
对于每个其他显示分区，根据其他显示分区的偏移值对应关系，以及目标显示分区的电压对应关系，得到其他显示分区的电压对应关系。
可选的，电压偏移值所占用的存储空间小于伽马电压所占用的存储空间。
可选的，该时序控制电路1201可以用于：
获取多个显示分区中的每个显示分区的显示亮度；
基于多个显示分区中的每个显示分区的显示亮度，对显示分区进行伽马校正，得到显示分区的灰阶与伽马电压的电压对应关系。
可选的，该时序控制电路1201可以用于：
获取参考面板包括的多个显示分区中参考显示分区的灰阶与伽马电压的电压对应关系，以及参考面板的多个显示分区中除参考显示分区外的每个剩余显示分区的灰阶与电压偏移值的偏移值对应关系，其中剩余显示分区的偏移值对应关系中任一灰阶对应的电压偏移值为相对于参考显示分区的电压对应关系中任一灰阶对应的伽马电压的偏移值；
获取显示面板包括的多个显示分区中目标显示分区的显示亮度，其中，参考面板的多个显示分区与显示面板的多个显示分区一一对应；
基于目标显示分区的显示亮度，对目标显示分区进行伽马校正，得到目标显示分区的灰阶与伽马电压的电压对应关系；
对于显示面板中除目标显示分区外的每个其他显示分区，基于目标显示分区的电压对应关系，以及其他显示分区所对应的剩余显示分区的偏移值对应关系，确定其他显示分区的电压对应关系。
可选的，多个显示分区中目标显示分区的伽马校正数据为灰阶与伽马电压的电压对应关系，以及灰阶与电压偏移值的偏移值对应关系，多个显示分区中除目标显示分区外的每个其他显示分区的伽马校正数据为灰阶与电压偏移值的偏移值对应关系，偏移值对应关系中任一灰阶对应的电压偏移值为相对于目标显示分区的电压对应关系中任一灰阶对应的伽马电压的偏移值；第一校正电压和至少一个第二校正电压均为目标灰阶对应的电压偏移值；该时序控制电路1201可以用于：
将像素在显示面板中的位置带入映射关系，得到像素的电压偏移值；
基于像素的电压偏移值，以及电压对应关系中目标灰阶对应的伽马电压，确定像素的伽马电压。
可选的，多个显示分区阵列排布。
可选的，显示面板所属的显示设备包括：多个源极驱动电路；
多个显示分区按照显示面板的像素行方向排布，每个显示分区与至少一个 源极驱动电路对应，且与对应的至少一个源极驱动电路连接。
可选的，至少一个第二显示分区的个数为1。该时序控制电路1201还可以用于：将与第一显示分区相邻且与像素距离最近的显示分区确定为第二显示分区。
可选的，在进行伽马校正之前，每个显示分区中的各个像素的实测亮度的差值小于亮度阈值，且相邻两个显示分区中的任意两个像素的实测亮度的差值大于亮度阈值。
可选的，多个显示分区呈多行多列排布；
位于同一行的各个显示分区的宽度相等，显示分区的宽度平行于显示面板的像素列延伸方向；
位于同一列的各个显示分区的长度相等，显示分区的长度平行于显示面板的像素行延伸方向。
可选的，多个显示分区中任意两个显示分区的长度相等，且宽度也相等。
可选的，至少一个第二显示分区的个数为3。该时序控制电路1201还可以用于：将在显示面板的像素行延伸方向上与第一显示分区相邻且与像素距离最近的显示分区确定为第一个第二显示分区；
将在显示面板的像素列延伸方向上与第一显示分区相邻且与像素距离最近的显示分区确定为第二个第二显示分区分区；
将分别与第一个第二显示分区以及第二个第二显示分区相邻的显示分区确定为第三个第二显示分区。
综上所述，本申请实施例提供了一种显示面板的驱动方法，由于驱动电路能够获取多个显示分区中每个显示分区的伽马校正数据，且多个显示分区的伽马校正数据是对至少一个显示分区进行伽马校正得到的，因此基于各个显示分区的伽马校正数据驱动显示面板，能够确保显示面板的亮度较为均一。
并且，由于每个像素的伽马电压是基于该像素的位置，第一校正电压和第二校正电压确定的，因此可以确保在显示过程中相邻像素的发光亮度之间能够平滑过渡，从而可以确保显示面板的显示效果较好。
本申请实施例提供了一种显示面板的驱动电路，该驱动电路包括：存储器，处理器及存储在存储器上并可在处理器上运行的计算机程序，该处理器执行计 算机程序时实现如上述方法实施例提供的显示面板的驱动方法，例如图2或图3所示的显示面板的驱动方法。
本申请实施例提供了一种显示设备，参见图12，该显示设备100包括：显示面板110，以及上述实施例提供的显示面板的驱动电路120。
可选的，该显示设备可以为车载显示设备(例如中控显示屏)或笔记本电脑。该显示面板的尺寸大于尺寸阈值(例如10寸)，且该显示面板可以为有机发光二极管(organic light-emitting diode，OLED)显示面板。
本申请实施例提供了一种计算机存储介质，该存储介质中存储有指令，指令由处理器加载并执行以实现如上述方法实施例提供的显示面板的驱动方法，例如图2或图3所示的显示面板的驱动方法。
本申请实施例提供了一种计算机程序产品，该计算机程序产品包括计算机指令，指令由处理器加载并执行以实现如上述方法实施例提供的显示面板的驱动方法，例如图2或图3所示的显示面板的驱动方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
应当理解的是，在本文中提及的“和/或”，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。并且，本申请中术语“至少一个”的含义是指一个或多个，本申请中术语“多个”的含义是指两个或两个以上。
本申请中术语“第一”“第二”等字样用于对作用和功能基本相同的相同项或相似项进行区分，应理解，“第一”、“第二”、“第n”之间不具有逻辑或时序上的依赖关系，也不对数量和执行顺序进行限定。例如，在不脱离各种所述示例的范围的情况下，第一伽马校正数据可以被称为第二伽马校正数据， 并且类似地，第二伽马校正数据可以被称为第一伽马校正数据。
以上所述仅为本申请的示例性实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种显示面板的驱动方法，其特征在于，所述显示面板包括：多个显示分区；所述方法包括：
    获取所述多个显示分区中每个显示分区的伽马校正数据，所述多个显示分区的伽马校正数据是对所述多个显示分区中的至少一个显示分区进行伽马校正得到的；
    对于所述显示面板中的每个像素，基于所述像素所在的第一显示分区的伽马校正数据，确定所述像素待显示的目标灰阶对应的第一校正电压；
    基于与所述第一显示分区相邻的至少一个第二显示分区的伽马校正数据，确定所述目标灰阶对应的至少一个第二校正电压；
    根据所述第一校正电压，所述至少一个第二校正电压，以及所述像素在所述显示面板中的位置，确定所述像素的伽马电压；
    基于所述伽马电压驱动所述像素显示所述目标灰阶。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述第一校正电压，所述至少一个第二校正电压，以及所述像素在所述显示面板中的位置，确定所述像素的伽马电压，包括：
    采用线性差值算法处理所述第一校正电压，所述至少一个第二校正电压，所述第一显示分区的中心像素在所述显示面板中的位置，以及每个第二显示分区的中心像素在所述显示面板中的位置，得到校正电压与像素位置的映射关系；
    基于所述像素在所述显示面板中的位置及所述映射关系，确定所述像素的伽马电压。
  3. 根据权利要求2所述的方法，其特征在于，所述伽马校正数据为灰阶与伽马电压的电压对应关系，所述第一校正电压和所述至少一个第二校正电压均为所述目标灰阶对应的伽马电压；
    所述基于所述像素在所述显示面板中的位置及所述映射关系，确定所述像素的伽马电压，包括：
    将所述像素在所述显示面板中的位置带入所述映射关系，得到所述像素的 伽马电压。
  4. 根据权利要求3所述的方法，其特征在于，所述获取所述多个显示分区中每个显示分区的伽马校正数据，包括：
    获取所述多个显示分区中目标显示分区的灰阶与伽马电压的电压对应关系；
    获取所述多个显示分区中除所述目标显示分区之外的每个其他显示分区的灰阶与电压偏移值的偏移值对应关系，且所述偏移值对应关系中任一灰阶对应的电压偏移值为相对于所述目标显示分区的电压对应关系中所述任一灰阶对应的伽马电压的偏移值；
    对于每个所述其他显示分区，根据所述其他显示分区的偏移值对应关系，以及所述目标显示分区的电压对应关系，得到所述其他显示分区的电压对应关系。
  5. 根据权利要求4所述的方法，其特征在于，
    所述电压偏移值所占用的存储空间小于所述伽马电压所占用的存储空间。
  6. 根据权利要求3所述的方法，其特征在于，所述获取所述多个显示分区中每个显示分区的伽马校正数据，包括：
    获取所述多个显示分区中的每个显示分区的显示亮度；
    基于所述多个显示分区中的每个显示分区的显示亮度，对所述显示分区进行伽马校正，得到所述显示分区的灰阶与伽马电压的电压对应关系。
  7. 根据权利要求3所述的方法，其特征在于，所述获取所述多个显示分区中每个显示分区的伽马校正数据，包括：
    获取参考面板包括的多个显示分区中参考显示分区的灰阶与伽马电压的电压对应关系，以及所述参考面板的多个显示分区中除所述参考显示分区外的每个剩余显示分区的灰阶与电压偏移值的偏移值对应关系，其中所述剩余显示分区的偏移值对应关系中任一灰阶对应的电压偏移值为相对于所述参考显示分区的电压对应关系中所述任一灰阶对应的伽马电压的偏移值；
    获取所述显示面板包括的多个显示分区中目标显示分区的显示亮度，其中，所述参考面板的多个显示分区与所述显示面板的多个显示分区一一对应；
    基于所述目标显示分区的显示亮度，对所述目标显示分区进行伽马校正，得到所述目标显示分区的灰阶与伽马电压的电压对应关系；
    对于所述显示面板中除所述目标显示分区外的每个其他显示分区，基于所述目标显示分区的电压对应关系，以及所述其他显示分区所对应的剩余显示分区的偏移值对应关系，确定所述其他显示分区的电压对应关系。
  8. 根据权利要求2所述的方法，其特征在于，所述多个显示分区中目标显示分区的伽马校正数据为灰阶与伽马电压的电压对应关系，以及灰阶与电压偏移值的偏移值对应关系，所述多个显示分区中除所述目标显示分区外的每个其他显示分区的伽马校正数据为灰阶与电压偏移值的偏移值对应关系，所述偏移值对应关系中任一灰阶对应的电压偏移值为相对于所述目标显示分区的电压对应关系中所述任一灰阶对应的伽马电压的偏移值；
    所述第一校正电压和所述至少一个第二校正电压均为所述目标灰阶对应的电压偏移值；
    所述基于所述像素在所述显示面板中的位置及所述映射关系，确定所述像素的伽马电压，包括：
    将所述像素在所述显示面板中的位置带入所述映射关系，得到所述像素的电压偏移值；
    基于所述像素的电压偏移值，以及所述电压对应关系中所述目标灰阶对应的伽马电压，确定所述像素的伽马电压。
  9. 根据权利要求1至8任一所述的方法，其特征在于，所述多个显示分区阵列排布。
  10. 根据权利要求1至9任一所述的方法，其特征在于，所述显示面板所属的显示设备包括：多个源极驱动电路；
    所述多个显示分区按照所述显示面板的像素行方向排布，每个显示分区与至少一个源极驱动电路对应，且与对应的所述至少一个源极驱动电路连接。
  11. 根据权利要求10所述的方法，其特征在于，所述至少一个第二显示分区的个数为1；在所述基于与所述第一显示分区相邻的至少一个第二显示分区的伽马校正数据，确定所述目标灰阶对应的至少一个第二校正电压之前，所述方法还包括：
    将与所述第一显示分区相邻且与所述像素距离最近的显示分区确定为第二显示分区。
  12. 根据权利要求1至9任一所述的方法，其特征在于，
    在进行伽马校正之前，每个所述显示分区中的各个像素的实测亮度的差值小于亮度阈值，且相邻两个所述显示分区中的任意两个像素的实测亮度的差值大于所述亮度阈值。
  13. 根据权利要求12所述的方法，其特征在于，所述多个显示分区呈多行多列排布；
    位于同一行的各个所述显示分区的宽度相等，所述显示分区的宽度平行于所述显示面板的像素列延伸方向；
    位于同一列的各个所述显示分区的长度相等，所述显示分区的长度平行于所述显示面板的像素行延伸方向。
  14. 根据权利要求13所述的方法，其特征在于，所述多个显示分区中任意两个显示分区的长度相等，且宽度也相等。
  15. 根据权利要求13所述的方法，其特征在于，所述至少一个第二显示分区的个数为3；在所述基于与所述第一显示分区相邻的至少一个第二显示分区的伽马校正数据，确定所述目标灰阶对应的至少一个第二校正电压之前，所述方法还包括：
    将在所述显示面板的像素行延伸方向上与所述第一显示分区相邻且与所述像素距离最近的显示分区确定为第一个第二显示分区；
    将在所述显示面板的像素列延伸方向上与所述第一显示分区相邻且与所述 像素距离最近的显示分区确定为第二个第二显示分区分区；
    将分别与所述第一个第二显示分区以及所述第二个第二显示分区相邻的显示分区确定为第三个第二显示分区。
  16. 一种显示面板的驱动电路，其特征在于，所述显示面板包括：多个显示分区；所述驱动电路包括：时序控制电路和源极驱动模组；
    所述时序控制电路用于：获取所述多个显示分区中每个显示分区的伽马校正数据，所述多个显示分区的伽马校正数据是对所述多个显示分区中的至少一个显示分区进行伽马校正得到的；
    对于所述显示面板中的每个像素，基于所述像素所在的第一显示分区的伽马校正数据，确定所述像素待显示的目标灰阶对应的第一校正电压；
    基于与所述第一显示分区相邻的至少一个第二显示分区的伽马校正数据，确定所述目标灰阶对应的至少一个第二校正电压；
    根据所述第一校正电压，所述至少一个第二校正电压，以及所述像素在所述显示面板中的位置，确定所述像素的伽马电压，并将所述像素的伽马电压发送至所述源极驱动模组；
    所述源极驱动电模组，用于基于所述伽马电压驱动所述像素显示所述目标灰阶。
  17. 一种显示面板的驱动电路，其特征在于，所述驱动电路包括：存储器，处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如权利要求1至权利要求15任一所述的显示面板的驱动方法。
  18. 一种显示设备，其特征在于，所述显示设备包括：显示面板，以及如权利要求16或权利要求17所述的显示面板的驱动电路。
  19. 一种计算机存储介质，其特征在于，所述存储介质中存储有指令，所述指令由处理器加载并执行以实现如权利要求1至权利要求15任一所述的显示面板的驱动方法。
  20. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机指令，所述指令由处理器加载并执行以实现如权利要求1至权利要求15任一所述的显示面板的驱动方法。
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