WO2021027270A1 - 显示面板驱动方法和显示装置 - Google Patents

显示面板驱动方法和显示装置 Download PDF

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Publication number
WO2021027270A1
WO2021027270A1 PCT/CN2020/076546 CN2020076546W WO2021027270A1 WO 2021027270 A1 WO2021027270 A1 WO 2021027270A1 CN 2020076546 W CN2020076546 W CN 2020076546W WO 2021027270 A1 WO2021027270 A1 WO 2021027270A1
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Prior art keywords
pixel
driven
sub
compensation
gray scale
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English (en)
French (fr)
Inventor
杨勇
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US16/772,845 priority Critical patent/US11189239B2/en
Publication of WO2021027270A1 publication Critical patent/WO2021027270A1/zh
Anticipated expiration legal-status Critical
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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
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G3/3406—Control of illumination source
    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • 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

Definitions

  • the present application relates to the field of display technology, and in particular, to a method for driving a display panel and a display device.
  • miniLEDs are widely used as direct-lit backlights due to their high brightness, high contrast, local dimming, flexibility, narrow bezels, etc.
  • it is necessary to splice miniLEDs as backlights For spliced backlights, there will be obvious splicing gaps at the splicing of miniLEDs.
  • dark lines will appear in the splicing place, which will affect the display effect.
  • the existing display devices using spliced miniLEDs have the technical problem of splicing dark lines at the splicing.
  • the present application provides a display panel driving method and display device, which are used to alleviate the technical problem of splicing dark lines in the splicing place of the existing display device using spliced miniLEDs.
  • the present application provides a display panel driving method.
  • the display panel driving method includes:
  • the second driving gray scale is used to drive the sub-pixel to be driven.
  • the step of calling the compensation coefficient of the splicing area includes:
  • G2' G3+L 1 2 /L 2 *
  • the second compensation driving gray scale of the pixel G3 is the third compensation driving gray scale of the third sub-pixel to be driven in the third light source area
  • G1 is the first compensation driving gray scale of the first sub-pixel to be driven in the first light source area
  • L 1 is the distance between the second sub-pixel to be driven and the third sub-pixel to be driven
  • L is the distance between the first sub-pixel to be driven and the third sub-pixel to be driven;
  • the first formula G2' G3+L 1 2 /L 2 *
  • is used to determine the second compensation driving gray scale of the second sub-pixel to be driven in the splicing area
  • the steps include:
  • the step of calling the compensation coefficient of the splicing area includes:
  • G2' G1+L 2 2 /L 2 *
  • G2' is the second to-be-driven sub-pixel in the splicing area
  • G3 is the third compensation driving gray scale of the third sub-pixel to be driven in the third light source area
  • G1 is the first compensation driving gray scale of the first sub-pixel to be driven in the first light source area
  • L 2 is the distance between the second sub-pixel to be driven and the first sub-pixel to be driven
  • L is the distance between the first sub-pixel to be driven and the third sub-pixel to be driven;
  • the second formula G2' G1+L 2 2 /L 2 *
  • is used to determine the second compensation driving gray scale of the second sub-pixel to be driven in the splicing area
  • the steps include:
  • the step of obtaining the third compensation driving gray scale G3 of the third sub-pixel to be driven in the third light source region includes:
  • the step of obtaining the first compensation driving gray scale G1 of the first sub-pixel to be driven in the first light source area includes:
  • the step of calculating the second driving gray scale of the sub-pixel to be driven according to the compensated pixel includes: using the product of the first driving gray scale of the sub-pixel to be driven and the stitching area compensation coefficient Get the second driving gray scale.
  • the step of obtaining the first driving gray scale of the sub-pixel to be driven further includes: obtaining the third driving gray scale of the pixel to be driven.
  • the step of determining the area where the sub-pixel to be driven is located, and when the sub-pixel to be driven is located in the splicing area, the step of calling the splicing area compensation coefficient further includes: determining the The area where the pixel to be driven is located, and when the pixel to be driven is located in the stitching area, the stitching area compensation coefficient is called.
  • the step of calculating the second driving gray scale of the sub-pixel to be driven according to the stitching area compensation coefficient further includes: calculating the stitching area compensation coefficient The fourth driving gray scale of the pixel to be driven.
  • the step of calling the compensation coefficient of the splicing area includes:
  • G2' G3+L 1 2 /L 2 *
  • the second compensation driving gray scale of the pixel G3 is the third compensation driving gray scale of the third sub-pixel to be driven in the third light source area
  • G1 is the first compensation driving gray scale of the first sub-pixel to be driven in the first light source area
  • L 1 is the distance between the second sub-pixel to be driven and the third sub-pixel to be driven
  • L is the distance between the first sub-pixel to be driven and the third sub-pixel to be driven;
  • the first formula G2' G3+L 1 2 /L 2 *
  • is used to determine the second compensation driving gray scale of the second sub-pixel to be driven in the splicing area
  • the steps include:
  • the step of calling the compensation coefficient of the splicing area includes:
  • G2' G1+L 2 2 /L 2 *
  • G2' is the second to-be-driven sub-pixel in the splicing area
  • G3 is the third compensation driving gray scale of the third sub-pixel to be driven in the third light source area
  • G1 is the first compensation driving gray scale of the first sub-pixel to be driven in the first light source area
  • L 2 is the distance between the second sub-pixel to be driven and the first sub-pixel to be driven
  • L is the distance between the first sub-pixel to be driven and the third sub-pixel to be driven;
  • the second formula G2' G1+L 2 2 /L 2 *
  • is used to determine the second compensation driving gray scale of the second sub-pixel to be driven in the splicing area
  • the steps include:
  • a third compensated drive gray level is obtained according to the third actual drive gray level and the third compensation parameter.
  • the step of obtaining the first compensation driving gray scale G1 of the first sub-pixel to be driven in the first light source area includes:
  • the first compensated drive gray level is obtained according to the first actual drive gray level and the first compensation parameter.
  • the present application provides a display device including a display panel and a driving chip, and the driving chip is used to execute any of the above-mentioned display panel driving methods to drive the display panel.
  • Figure 1 is a schematic diagram of an existing display device
  • FIG. 2 is a schematic diagram of a display panel driving method provided by an embodiment of the application.
  • the present application provides a display panel driving method and a display device.
  • a display panel driving method and a display device.
  • the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and not used to limit the application.
  • the present application addresses the technical problem of splicing dark lines in the existing display devices using spliced miniLEDs, and the embodiments of the present application are used to solve this problem.
  • the existing display device includes a backlight module 11, an array substrate 12, a liquid crystal layer 13, and a color filter substrate 14.
  • the backlight module 11 includes a first light source 111 and a third light source 112.
  • the light source 111 includes a plurality of miniLEDs 1111
  • the third light source 112 includes a plurality of miniLEDs 1121
  • the first light source 111 and the third light source 112 are spliced together, and the splicing method is based on the actual selection of glue, hinge, etc., as shown in Figure 1
  • the connecting member at the splice is not shown;
  • the display panel includes a first light source area 151, a third light source area 152, and a splicing area 153 located between the first light source area 151 and the third light source area 152, as shown in FIG.
  • the second pixel in the splicing area 153 needs to emit light through the diffused light of the first light source 111 and the third light source 112, resulting in the second pixel being dark or even no light.
  • the splicing area 153 presents a dark line during display, that is, the existing display device using spliced miniLEDs has the technical problem of splicing dark lines at the splicing.
  • an embodiment of the present application provides a display panel driving method, and the display panel driving method includes:
  • S2 Determine the area where the sub-pixel to be driven is located, and when the sub-pixel to be driven is located in the stitching area, call the stitching area compensation coefficient;
  • An embodiment of the present application provides a display panel driving method.
  • the display panel driving method includes obtaining a first driving gray scale of a sub-pixel to be driven; determining an area where the sub-pixel to be driven is located, and when the sub-pixel to be driven is located in a splicing area, Call the splicing area compensation coefficient; calculate the second driving gray scale of the sub-pixel to be driven according to the splicing area compensation coefficient; use the second driving gray scale to drive the sub-pixel to be driven; by compensating the sub-pixel to be driven in the splicing area,
  • the sub-pixels to be driven in the splicing area are displayed normally, thereby eliminating the display dark lines at the splicing place, and alleviating the technical problem of the splicing dark lines in the splicing place in the existing display devices using spliced miniLEDs.
  • the step of calling the compensation coefficient of the splicing area includes:
  • G2' G3+L 1 2 /L 2 *
  • the second compensation driving gray scale of the pixel G3 is the third compensation driving gray scale of the third sub-pixel to be driven in the third light source area
  • G1 is the first compensation driving gray scale of the first sub-pixel to be driven in the first light source area
  • L 1 is the distance between the second sub-pixel to be driven and the third sub-pixel to be driven
  • L is the distance between the first sub-pixel to be driven and the third sub-pixel to be driven;
  • the second compensation driving gray scale of the second sub-pixel to be driven in the compensated splicing area can be calculated by using the first formula, and then the second compensation driving gray scale and The second actual driving gray scale obtains the compensation coefficient; wherein, the first formula takes into account the first compensation driving gray scale of the first sub-pixel to be driven in the first light source area, and the third driving gray scale of the third sub-pixel to be driven in the third light source area.
  • Compensation gray scale as well as the distance between the first sub-pixel to be driven and the third sub-pixel to be driven, the distance between the third sub-pixel to be driven and the second sub-pixel to be driven, that is, the finally obtained compensation coefficient takes into account the first
  • the driving gray scale of the pixel makes the compensation coefficient more accurate, so that the second compensation driving gray scale of the splicing area is accurate, so that the display effect of the splicing area is consistent with the display effect of the light source area, and the generation of dark lines is avoided.
  • the splicing area is located between the first light source area and the third light source area, and the first sub-pixel to be driven and the third sub-pixel to be driven are the first light source area and the third light source area, respectively.
  • the light source area is closest to the sub-pixel to be driven in the splicing area, but the application is not limited to this, and the first sub-pixel to be driven and the third sub-pixel to be driven may be other sub-pixels to be driven.
  • the step of using the first formula G2' G3+L 1 2 /L 2 *
  • to determine the second compensation driving gray scale of the second sub-pixel to be driven in the splicing area includes:
  • the first formula it is necessary to first obtain the third compensation driving gray scale G3 of the third sub-pixel to be driven in the third light source area corresponding to any time period, and the first compensation driving gray scale of the first sub-pixel to be driven in the first light source area.
  • Step G1 the distance L 1 between the second sub-pixel to be driven and the third sub-pixel to be driven, the distance L between the first sub-pixel to be driven and the third sub-pixel to be driven,
  • G2' the second compensation driving gray level G2' of the second sub-pixel to be driven
  • the display effect of the splicing area is consistent with the display effect of the light source area ,
  • G2' G3+L 1 2 /L 2 *
  • the step of calling the compensation coefficient of the splicing area includes:
  • G2' G1+L 2 2 /L 2 *
  • G2' is the second to-be-driven sub-pixel in the splicing area
  • G3 is the third compensation driving gray scale of the third sub-pixel to be driven in the third light source area
  • G1 is the first compensation driving gray scale of the first sub-pixel to be driven in the first light source area
  • L 2 is the distance between the second sub-pixel to be driven and the first sub-pixel to be driven
  • L is the distance between the first sub-pixel to be driven and the third sub-pixel to be driven;
  • the compensation coefficient needs to be obtained when the compensation coefficient of the splicing area is called.
  • the second compensation driving gray scale of the second to-be-driven sub-pixel of the compensated splicing area can be calculated by using the second formula, and then the gray scale and the first compensation driving gray scale are driven according to the second compensation. 2.
  • the step of using the second formula G2' G1+L 2 2 /L 2 *
  • to determine the second compensation driving gray scale of the second sub-pixel to be driven in the splicing area includes:
  • the second compensation driving gray scale obtained according to the second formula is related to the first compensation driving gray scale and the third compensation driving gray scale, so that the second sub-pixel to be driven is related to the first sub-pixel to be driven.
  • the third compensation driving gray level G3 corresponding to the third sub-pixel to be driven in the third light source area and the second sub-pixel of the first light source area to be driven can be obtained first A compensation driving gray scale G1, the distance L 2 between the second sub-pixel to be driven and the first sub-pixel to be driven, and the distance between the first sub-pixel to be driven and the third sub-pixel to be driven.
  • the step of obtaining the third compensation driving gray scale G3 of the third sub-pixel to be driven in the third light source area includes:
  • the third compensation driving gray scale of the third sub-pixel to be driven When obtaining the third compensation driving gray scale of the third sub-pixel to be driven, first obtain the third actual driving gray scale of the third sub-pixel to be driven, that is, the actual driving gray scale of the third sub-pixel to be driven, and then obtain the first The third compensation parameter of the three sub-pixels to be driven. This parameter compensates for the gray scale loss of the third sub-pixel to be driven due to circuit loss during the driving process.
  • the third compensation drive is obtained according to the third actual driving gray scale and the third compensation parameter.
  • the gray scale is the driving gray scale that finally makes the third sub-pixel to be driven display the best display effect.
  • the step of obtaining the first compensation driving gray scale G1 of the first sub-pixel to be driven in the first light source area includes:
  • the step of calculating the second driving gray scale of the sub-pixel to be driven according to the compensation coefficient of the splicing area includes: using the product of the first driving gray scale of the sub-pixel to be driven and the compensation coefficient of the splicing area to obtain The second driving gray scale; in actual driving, the second driving gray scale can be obtained by multiplying the compensation coefficient of the splicing area with the first driving gray scale, thereby compensating the sub-pixels to be driven in the splicing area, so that the sub-pixels to be driven in the splicing area normal display.
  • the compensation coefficient of each sub-pixel is calculated, and each sub-pixel is compensated according to the compensation coefficient of each sub-pixel, so that each sub-pixel in the splicing area Normal display, eliminating splicing dark lines.
  • the step of obtaining the first driving gray scale of the sub-pixel to be driven further includes: obtaining the third driving gray scale of the pixel to be driven.
  • the step of determining the area where the sub-pixel to be driven is located, and when the sub-pixel to be driven is located in the splicing area, calling the compensation coefficient of the splicing area further includes: determining where the pixel to be driven is located When the pixel to be driven is located in the stitching area, the stitching area compensation coefficient is called.
  • the step of calculating the second driving gray scale of the sub-pixel to be driven according to the stitching area compensation coefficient further includes: calculating the pixel to be driven according to the stitching area compensation coefficient The fourth drive gray scale.
  • the step of using the second driving gray scale to drive the sub-pixel to be driven further includes: using the fourth driving gray scale to drive the pixel to be driven.
  • the step of calling the compensation coefficient of the splicing area includes:
  • the step of using the first formula G2' G3+L 1 2 /L 2 *
  • to determine the second compensation driving gray scale of the second sub-pixel to be driven in the splicing area includes:
  • the step of calling the compensation coefficient of the splicing area includes:
  • G2' G1+L 2 2 /L 2 *
  • G2' is the second to-be-driven sub-pixel in the splicing area
  • G3 is the third compensation driving gray scale of the third sub-pixel to be driven in the third light source area
  • G1 is the first compensation driving gray scale of the first sub-pixel to be driven in the first light source area
  • L 2 is the distance between the second sub-pixel to be driven and the first sub-pixel to be driven
  • L is the distance between the first sub-pixel to be driven and the third sub-pixel to be driven;
  • the step of using the second formula G2' G1+L 2 2 /L 2 *
  • to determine the second compensation driving gray scale of the second sub-pixel to be driven in the splicing area includes:
  • the step of obtaining the third compensation driving gray scale G3 of the third sub-pixel to be driven in the third light source area includes:
  • a third compensated drive gray level is obtained according to the third actual drive gray level and the third compensation parameter.
  • the step of obtaining the first compensation driving gray scale G1 of the first sub-pixel to be driven in the first light source area includes:
  • the first compensated drive gray level is obtained according to the first actual drive gray level and the first compensation parameter.
  • the compensation coefficient when compensating the sub-pixels in the splicing area, after the compensation coefficient of a sub-pixel in the pixel is obtained, the compensation coefficient is used to compensate the pixel containing the sub-pixel, that is, the compensation coefficient in the same pixel is The compensation coefficient of each sub-pixel is the same, so that the sub-pixels in the splicing area are compensated and the dark splicing line is eliminated.
  • the compensation coefficients of each sub-pixel can be calculated separately, and each sub-pixel in the splicing area can be compensated according to the compensation coefficient of each sub-pixel.
  • the compensation coefficient of each sub-pixel in the pixel is the same, so that each sub-pixel in the splicing area is compensated.
  • An embodiment of the present application provides a display device, which includes:
  • the embodiments of the present application provide a display panel driving method and a display device.
  • the display panel driving method includes obtaining the first driving gray scale of the sub-pixel to be driven; determining the area where the sub-pixel to be driven is located, and when the sub-pixel to be driven is located in the mosaic Area, call the compensation coefficient of the splicing area; calculate the second driving gray scale of the sub-pixel to be driven according to the compensation coefficient of the splicing area; use the second driving gray scale to drive the sub-pixel to be driven; Compensation is performed to enable the normal display of the sub-pixels to be driven in the splicing area, thereby eliminating the display dark lines at the splicing area, and alleviating the technical problem of splicing dark lines at the splicing area in the existing display devices using spliced miniLEDs.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种显示面板驱动方法和显示装置，通过对拼接区的待驱动子像素进行补偿，使得拼接区待驱动子像素正常显示，消除了拼接处的显示暗线，缓解了现有采用拼接miniLED的显示器件拼接处存在拼接暗线的技术问题。驱动方法包括：获取待驱动子像素的第一驱动灰阶（S1）；确定待驱动子像素所处区域，并在待驱动子像素位于拼接区时，调用拼接区补偿系数（S2）；根据拼接区补偿系数计算出待驱动子像素的第二驱动灰阶（S3）；使用第二驱动灰阶驱动待驱动子像素（S4）。

Description

显示面板驱动方法和显示装置
本申请要求于2019年08月14日提交中国专利局、申请号为201910747304.7、发明名称为“显示面板驱动方法和显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其是涉及一种显示面板驱动方法和显示装置。
 背景技术
现有miniLED由于具有高亮、高对比度、可实现局部调光、可弯曲、窄边框等优点，作为直下式背光源广泛应用，但随着显示器件的尺寸增大，使得需要拼接miniLED作为背光源、而对于拼接的背光源、在miniLED的拼接处会存在较明显的拼接缝隙，在显示器件显示时，会在拼接处呈现处拼接暗线，影响显示效果。
所以，现有的采用拼接miniLED的显示器件存在拼接处存在拼接暗线的技术问题。
 技术问题
本申请提供一种显示面板驱动方法和显示装置，用于缓解现有的采用拼接miniLED的显示器件存在拼接处存在拼接暗线的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种显示面板驱动方法，该显示面板驱动方法包括：
获取待驱动子像素的第一驱动灰阶；
确定所述待驱动子像素所处区域，并在所述待驱动子像素位于拼接区时，调用拼接区补偿系数；
根据所述拼接区补偿系数计算出所述待驱动子像素的第二驱动灰阶；
使用所述第二驱动灰阶驱动所述待驱动子像素。
在本申请提供的显示面板驱动方法中，所述调用拼接区补偿系数的步骤包括：
使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为拼接区第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区第一待驱动子像素的第一补偿驱动灰阶，L 1为所述第二待驱动子像素与所述第三待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
获取拼接区第二待驱动子像素的第二实际驱动灰阶G2；
使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
在本申请提供的显示面板驱动方法中，所述使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3；
获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1；
获取所述第二待驱动子像素与所述第三待驱动子像素之间的距离L 1，
获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
得到第一公式G2'=G3+L 1 2/L 2*|G3-G1|。
在本申请提供的显示面板驱动方法中，所述调用拼接区补偿系数的步骤包括：
使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为拼接区第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区第一待驱动子像素的第一补偿驱动灰阶，L 2为所述第二待驱动子像素与所述第一待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
获取拼接区第二待驱动子像素的第二实际驱动灰阶G2；
使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
在本申请提供的显示面板驱动方法中，所述使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3；
获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1；
获取所述第二待驱动子像素与所述第一待驱动子像素之间的距离L 2，
获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
得到第二公式G2'=G1+L 2 2/L 2*|G3-G1|。
在本申请提供的显示面板驱动方法中，所述获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3的步骤包括：
获取第三光源区第三待驱动子像素的第三实际驱动灰阶；
获取第三待驱动子像素的第三补偿参数；
根据所述第三实际驱动灰阶和第三补偿参数得到第三补偿驱动灰阶。
在本申请提供的显示面板驱动方法中，所述获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1的步骤包括：
获取第一光源区第一待驱动子像素的第一实际驱动灰阶；
获取第一待驱动子像素的第一补偿参数；
根据所述第一实际驱动灰阶和第一补偿参数得到第一补偿驱动灰阶。
在本申请提供的显示面板驱动方法中，所述调用拼接区补偿系数的步骤包括：
根据第一光源区的第一待驱动子像素确定第一拼接区补偿系数；
根据第三光源区的第三待驱动子像素确定第二拼接区补偿系数；
根据第一拼接区补偿系数和第二拼接区补偿系数确定拼接区补偿系数。
在本申请提供的显示面板驱动方法中，所述根据补偿像素计算出待驱动子像素的第二驱动灰阶的步骤包括：使用待驱动子像素的第一驱动灰阶与拼接区补偿系数的乘积得出第二驱动灰阶。
在本申请提供的显示面板驱动方法中，所述获取待驱动子像素的第一驱动灰阶的步骤还包括：获取待驱动像素的第三驱动灰阶。
在本申请提供的显示面板驱动方法中，所述确定所述待驱动子像素所处区域，并在所述待驱动子像素位于拼接区时，调用拼接区补偿系数的步骤还包括：确定所述待驱动像素所处区域，并在所述待驱动像素位于拼接区时，调用拼接区补偿系数。
在本申请提供的显示面板驱动方法中，所述根据所述拼接区补偿系数计算出所述待驱动子像素的第二驱动灰阶的步骤还包括：根据所述拼接区补偿系数计算出所述待驱动像素的第四驱动灰阶。
在本申请提供的显示面板驱动方法中，所述使用所述第二驱动灰阶驱动所述待驱动子像素的步骤还包括：使用所述第四驱动灰阶驱动所述待驱动像素。
在本申请提供的显示面板驱动方法中，所述调用拼接区补偿系数的步骤包括：
使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为拼接区第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区第一待驱动子像素的第一补偿驱动灰阶，L 1为所述第二待驱动子像素与所述第三待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
获取拼接区第二待驱动子像素的第二实际驱动灰阶G2；
使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
在本申请提供的显示面板驱动方法中，所述使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3；
获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1；
获取所述第二待驱动子像素与所述第三待驱动子像素之间的距离L 1，
获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
得到第一公式G2'=G3+L 1 2/L 2*|G3-G1|。
在本申请提供的显示面板驱动方法中，所述调用拼接区补偿系数的步骤包括：
使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为拼接区第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区第一待驱动子像素的第一补偿驱动灰阶，L 2为所述第二待驱动子像素与所述第一待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
获取拼接区第二待驱动子像素的第二实际驱动灰阶G2；
使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
在本申请提供的显示面板驱动方法中，所述使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3；
获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1；
获取所述第二待驱动子像素与所述第一待驱动子像素之间的距离L 2，
获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
得到第二公式G2'=G1+L 2 2/L 2*|G3-G1|。
在本申请提供的显示面板驱动方法中，所述获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3的步骤包括：
获取第三光源区第三待驱动子像素的第三实际驱动灰阶；
获取第三待驱动子像素的第三补偿参数；
根据所述第三实际驱动灰阶和第三补偿参数得到第三补偿驱动灰阶。
在本申请提供的显示面板驱动方法中，所述获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1的步骤包括：
获取第一光源区第一待驱动子像素的第一实际驱动灰阶；
获取第一待驱动子像素的第一补偿参数；
根据所述第一实际驱动灰阶和第一补偿参数得到第一补偿驱动灰阶。
同时，本申请提供一种显示装置，该显示装置包括显示面板和驱动芯片，该驱动芯片用于执行上述任一所述的显示面板驱动方法，以驱动显示面板。
 有益效果
本申请提供一种显示面板驱动方法和显示装置，该显示面板驱动方法包括获取待驱动子像素的第一驱动灰阶；确定待驱动子像素所处区域，并在待驱动子像素位于拼接区时，调用拼接区补偿系数；根据拼接区补偿系数计算出待驱动子像素的第二驱动灰阶；使用所述第二驱动灰阶驱动待驱动子像素；通过对拼接区的待驱动子像素进行补偿，使得拼接区待驱动子像素正常显示，从而消除了拼接处的显示暗线，缓解了现有的采用拼接miniLED的显示器件存在拼接处存在拼接暗线的技术问题。
 附图说明
图1为现有显示装置示意图；
图2为本申请实施例提供的显示面板驱动方法的示意图。
 本发明的实施方式
本申请提供一种显示面板驱动方法和显示装置，为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
本申请针对现有的采用拼接miniLED的显示器件存在拼接处存在拼接暗线的技术问题，本申请实施例用以解决该问题。
如图1所示，现有显示装置包括背光模组11、阵列基板12、液晶层13、彩膜基板14，所述背光模组11包括第一光源111和第三光源112，所述第一光源111包括多个miniLED1111，所述第三光源112包括多个miniLED1121，所述第一光源111与所述第三光源112拼接在一起，拼接方式根据实际选择胶连，铰链等方式，图1中未示出拼接处连接构件；显示面板包括第一光源区151、第三光源区152，以及位于所述第一光源区151和第三光源区152之间的拼接区153，图1中示出了位于第一光源区151的第一像素的色阻层141、位于第三光源区152的第三像素的色阻层142，以及位于拼接区153的第二像素的色阻层143，从图1中可以看出，由于拼接区153不存在光源，使得位于拼接区153的第二像素需要通过第一光源111和第三光源112的扩散光来发光，从而造成第二像素较暗甚至没有光线发出，使得拼接区153在显示时呈现暗线，即现有的采用拼接miniLED的显示器件存在拼接处存在拼接暗线的技术问题。
如图2所示，本申请实施例提供一种显示面板驱动方法，该显示面板驱动方法包括：
S1，获取待驱动子像素的第一驱动灰阶；
S2，确定所述待驱动子像素所处区域，并在所述待驱动子像素位于拼接区时，调用拼接区补偿系数；
S3，根据所述拼接区补偿系数计算出所述待驱动子像素的第二驱动灰阶；
S4，使用所述第二驱动灰阶驱动所述待驱动子像素。
本申请实施例提供一种显示面板驱动方法，该显示面板驱动方法包括获取待驱动子像素的第一驱动灰阶；确定待驱动子像素所处区域，并在待驱动子像素位于拼接区时，调用拼接区补偿系数；根据拼接区补偿系数计算出待驱动子像素的第二驱动灰阶；使用所述第二驱动灰阶驱动待驱动子像素；通过对拼接区的待驱动子像素进行补偿，使得拼接区待驱动子像素正常显示，从而消除了拼接处的显示暗线，缓解了现有的采用拼接miniLED的显示器件存在拼接处存在拼接暗线的技术问题。
在一种实施例中，所述调用拼接区补偿系数的步骤包括：
使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为拼接区第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区第一待驱动子像素的第一补偿驱动灰阶，L 1为所述第二待驱动子像素与所述第三待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
获取拼接区第二待驱动子像素的第二实际驱动灰阶G2；
使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2；
在调用拼接区补偿系数时，需要得到补偿系数，可通过使用第一公式计算出补偿后的拼接区的第二待驱动子像素的第二补偿驱动灰阶，然后根据第二补偿驱动灰阶和第二实际驱动灰阶得到补偿系数；其中，第一公式考虑了第一光源区的第一待驱动子像素的第一补偿驱动灰阶、第三光源区的第三待驱动子像素的第三补偿灰阶，以及第一待驱动子像素与第三待驱动子像素之间的距离、第三待驱动子像素与第二待驱动子像素之间的距离，即最终得到的补偿系数考虑了第一待驱动子像素和第三待驱动子像素的驱动灰阶，且考虑了各个子像素的距离，使得对应各个驱动灰阶，补偿系数都考虑了第一待驱动子像素和第三待驱动子像素的驱动灰阶，从而使得补偿系数较为准确，使得得到的拼接区的第二补偿驱动灰阶准确，从而使得拼接区的显示效果与光源区的显示效果一致，避免暗线的产生。
需要说明的是，所述拼接区位于所述第一光源区与所述第三光源区之间，所述第一待驱动子像素和第三待驱动子像素分别为第一光源区和第三光源区最靠近拼接区的待驱动子像素，但本申请不限于此，也可使第一待驱动子像素和第三待驱动子像素为其他待驱动子像素。
在一种实施例中，所述使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3；
获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1；
获取所述第二待驱动子像素与所述第三待驱动子像素之间的距离L 1，
获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
得到第一公式G2'=G3+L 1 2/L 2*|G3-G1|；
为了得到第一公式，需要先获取任一时间段对应的第三光源区第三待驱动子像素的第三补偿驱动灰阶G3、第一光源区第一待驱动子像素的第一补偿驱动灰阶G1、所述第二待驱动子像素与所述第三待驱动子像素之间的距离L 1、所述第一待驱动子像素与所述第三待驱动子像素之间的距离L，经过测试可以知道在使用G3+L 1 2/L 2*|G3-G1|得到第二待驱动子像素的第二补偿驱动灰阶G2'时，拼接区的显示效果与光源区的显示效果一致，从而得到第一公式G2'=G3+L 1 2/L 2*|G3-G1|。
在一种实施例中，所述调用拼接区补偿系数的步骤包括：
使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为拼接区第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区第一待驱动子像素的第一补偿驱动灰阶，L 2为所述第二待驱动子像素与所述第一待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
获取拼接区第二待驱动子像素的第二实际驱动灰阶G2；
使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2；
在调用拼接区补偿系数时需要得到补偿系数，可通过使用第二公式计算出补偿后的拼接区的第二待驱动子像素的第二补偿驱动灰阶，然后根据第二补偿驱动灰阶和第二实际驱动灰阶得到补偿系数，其中，第二公式考虑了第一光源区的第一待驱动子像素的第一补偿驱动灰阶、第三光源区的第三待驱动子像素的第三补偿灰阶，以及第一待驱动子像素与第三待驱动子像素之间的距离、以及第一待驱动子像素与第二待驱动子像素之间的距离，即以第一待驱动子像素为主要因子，同时考虑第一待驱动子像素和第三待驱动子像素，使得得到的第二待驱动子像素的第二补偿驱动灰阶与所述第一待驱动子像素的第一补偿驱动灰阶和第三待驱动子像素的第三补偿驱动灰阶相关，从而在显示时第二待驱动子像素的显示效果与第一待驱动子像素和第三待驱动子像素相近，从而避免了暗线的产生。
在一种实施例中，所述使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3；
获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1；
获取所述第二待驱动子像素与所述第一待驱动子像素之间的距离L 2，
获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
得到第二公式G2'=G1+L 2 2/L 2*|G3-G1|；
为了得到第二公式，使得根据第二公式得到的第二补偿驱动灰阶与第一补偿驱动灰阶和第三补偿驱动灰阶相关，从而使得第二待驱动子像素与第一待驱动子像素和第三待驱动子像素显示效果一致，可先获取任一时间段对应第三光源区第三待驱动子像素的第三补偿驱动灰阶G3、第一光源区第一待驱动子像素的第一补偿驱动灰阶G1、所述第二待驱动子像素与所述第一待驱动子像素之间的距离L 2、所述第一待驱动子像素与所述第三待驱动子像素之间的距离L，在得到第一待驱动子像素和第三待驱动子像素的相关参数后，经过测试可以得知在使用G1+L 2 2/L 2*|G3-G1|得到第二待驱动子像素的第二补偿驱动灰阶G2'时，拼接区的显示效果与光源区的显示效果一致，从而得到第二公式G2'=G1+L 2 2/L 2*|G3-G1|。
在一种实施例中，所述获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3的步骤包括：
获取第三光源区第三待驱动子像素的第三实际驱动灰阶；
获取第三待驱动子像素的第三补偿参数；
根据所述第三实际驱动灰阶和第三补偿参数得到第三补偿驱动灰阶；
在获取第三待驱动子像素的第三补偿驱动灰阶时，要先获取第三待驱动子像素的第三实际驱动灰阶，即第三待驱动子像素实际的驱动灰阶，然后获取第三待驱动子像素的第三补偿参数，该参数为补偿第三待驱动子像素在驱动过程由于电路损耗造成的灰阶损失，根据第三实际驱动灰阶和第三补偿参数得到第三补偿驱动灰阶，即得到最终使得第三待驱动子像素显示效果最好的驱动灰阶。
在一种实施例中，所述获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1的步骤包括：
获取第一光源区第一待驱动子像素的第一实际驱动灰阶；
获取第一待驱动子像素的第一补偿参数；
根据所述第一实际驱动灰阶和第一补偿参数得到第一补偿驱动灰阶；
在获取第一待驱动子像素的第一补偿驱动灰阶时，需要先获取第一待驱动子像素的第一实际驱动灰阶，然后根据对应第一待驱动子像素的第一补偿参数，得到使第一待驱动子像素正常显示的第一补偿驱动灰阶。
在一种实施例中，所述调用拼接区补偿系数的步骤包括：
根据第一光源区的第一待驱动子像素确定第一拼接区补偿系数；
根据第三光源区的第三待驱动子像素确定第二拼接区补偿系数；
根据第一拼接区补偿系数和第二拼接区补偿系数确定拼接区补偿系数；
在得到拼接区补偿系数时，可分别以第一待驱动子像素为基准确定第一拼接区补偿系数、以第三待驱动子像素为基准确定第二拼接区补偿系数，然后根据第一拼接区补偿系数和第二拼接区补偿系数确定拼接区补偿系数，得到的拼接区补偿系数考虑了第一待驱动子像素和第二待驱动子像素，从而使得得到的拼接区补偿系数较为准确。
在一种实施例中，所述根据拼接区补偿系数计算出待驱动子像素的第二驱动灰阶的步骤包括：使用待驱动子像素的第一驱动灰阶与拼接区补偿系数的乘积得出第二驱动灰阶；在实际驱动时，可使得拼接区补偿系数与第一驱动灰阶相乘得到第二驱动灰阶，从而对拼接区待驱动子像素进行补偿，使得拼接区待驱动子像素正常显示。
在上述实施例中，在对拼接区的待驱动子像素进行补偿时，分别计算出各个子像素的补偿系数，根据各个子像素的补偿系数对各个子像素进行补偿，从而使得拼接区各个子像素正常显示，消除拼接暗线。
在一种实施例中，所述获取待驱动子像素的第一驱动灰阶的步骤还包括：获取待驱动像素的第三驱动灰阶。
在一种实施例中，所述确定所述待驱动子像素所处区域，并在所述待驱动子像素位于拼接区时，调用拼接区补偿系数的步骤还包括：确定所述待驱动像素所处区域，并在所述待驱动像素位于拼接区时，调用拼接区补偿系数。
在一种实施例中，所述根据所述拼接区补偿系数计算出所述待驱动子像素的第二驱动灰阶的步骤还包括：根据所述拼接区补偿系数计算出所述待驱动像素的第四驱动灰阶。
在一种实施例中，所述使用所述第二驱动灰阶驱动所述待驱动子像素的步骤还包括：使用所述第四驱动灰阶驱动所述待驱动像素。
在一种实施例中，所述调用拼接区补偿系数的步骤包括：
使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为拼接区第二待子驱动像素的第二补偿驱动灰阶，G3为第三光源区第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区第一待驱动子像素的第一补偿驱动灰阶，L 1为所述第二待驱动子像素与所述第三待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
获取拼接区第二待驱动子像素的第二实际驱动灰阶G2；
使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
在一种实施例中，所述使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3；
获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1；
获取所述第二待驱动子像素与所述第三待驱动子像素之间的距离L 1，
获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
得到第一公式G2'=G3+L 1 2/L 2*|G3-G1|。
在一种实施例中，所述调用拼接区补偿系数的步骤包括：
使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为拼接区第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区第一待驱动子像素的第一补偿驱动灰阶，L 2为所述第二待驱动子像素与所述第一待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
获取拼接区第二待驱动子像素的第二实际驱动灰阶G2；
使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
在一种实施例中，所述使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3；
获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1；
获取所述第二待驱动子像素与所述第一待驱动子像素之间的距离L 2，
获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
得到第二公式G2'=G1+L 2 2/L 2*|G3-G1|。
在一种实施例中，所述获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3的步骤包括：
获取第三光源区第三待驱动子像素的第三实际驱动灰阶；
获取第三待驱动子像素的第三补偿参数；
根据所述第三实际驱动灰阶和第三补偿参数得到第三补偿驱动灰阶。
在一种实施例中，所述获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1的步骤包括：
获取第一光源区第一待驱动子像素的第一实际驱动灰阶；
获取第一待驱动子像素的第一补偿参数；
根据所述第一实际驱动灰阶和第一补偿参数得到第一补偿驱动灰阶。
在上述实施例中，在对拼接区的子像素进行补偿时，在得到像素内的一个子像素的补偿系数后，采用该补偿系数对包含该子像素的像素进行补偿，即使得同一像素内的各个子像素的补偿系数相同，从而对拼接区的子像素进行补偿，消除拼接暗线。
在本申请实施例中，在对拼接区的子像素进行补偿时，可以分别计算各个子像素的补偿系数，分别根据各个子像素的补偿系数对拼接区的各个子像素进行补偿，还可以使同一像素内的各个子像素的补偿系数相同，从而对拼接区的各个子像素进行补偿。
本申请实施例提供一种显示装置，该显示装置包括：
显示面板；
驱动芯片，用于执行上述实施例任一所述的显示面板驱动方法，以驱动显示面板。
根据以上实施例可知：
本申请实施例提供一种显示面板驱动方法和显示装置，该显示面板驱动方法包括获取待驱动子像素的第一驱动灰阶；确定待驱动子像素所处区域，并在待驱动子像素位于拼接区时，调用拼接区补偿系数；根据拼接区补偿系数计算出待驱动子像素的第二驱动灰阶；使用所述第二驱动灰阶驱动待驱动子像素；通过对拼接区的待驱动子像素进行补偿，使得拼接区待驱动子像素正常显示，从而消除了拼接处的显示暗线，缓解了现有的采用拼接miniLED的显示器件存在拼接处存在拼接暗线的技术问题。
可以理解的是，对本领域普通技术人员来说，可以根据本申请的技术方案及其发明构思加以等同替换或改变，而所有这些改变或替换都应属于本申请所附的权利要求的保护范围。

Claims (20)

  1. 一种显示面板驱动方法，其包括：
    获取待驱动子像素的第一驱动灰阶；
    确定所述待驱动子像素所处区域，并在所述待驱动子像素位于拼接区时，调用拼接区补偿系数；
    根据所述拼接区补偿系数计算出所述待驱动子像素的第二驱动灰阶；
    使用所述第二驱动灰阶驱动所述待驱动子像素。
  2. 如权利要求1所述的显示面板驱动方法，其中，所述调用拼接区补偿系数的步骤包括：
    使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定所述拼接区中第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为所述拼接区中所述第二待驱动子像素的所述第二补偿驱动灰阶，G3为第三光源区中第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区中第一待驱动子像素的第一补偿驱动灰阶，L 1为所述第二待驱动子像素与所述第三待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
    获取所述拼接区中所述第二待驱动子像素的第二实际驱动灰阶G2；
    使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到所述拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
  3. 如权利要求2所述的显示面板驱动方法，其中，所述使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
    获取所述第三光源区中所述第三待驱动子像素的所述第三补偿驱动灰阶G3；
    获取所述第一光源区中所述第一待驱动子像素的所述第一补偿驱动灰阶G1；
    获取所述第二待驱动子像素与所述第三待驱动子像素之间的距离L 1，
    获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
    得到所述第一公式G2'=G3+L 1 2/L 2*|G3-G1|。
  4. 如权利要求1所述的显示面板驱动方法，其中，所述确定所述待驱动子像素所处区域，并在所述待驱动子像素位于拼接区时，调用拼接区补偿系数的步骤包括：
    使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定所述拼接区中第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为所述拼接区中第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区中第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区中第一待驱动子像素的第一补偿驱动灰阶，L 2为所述第二待驱动子像素与所述第一待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
    获取所述拼接区中所述第二待驱动子像素的第二实际驱动灰阶G2；
    使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到所述拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
  5. 如权利要求4所述的显示面板驱动方法，其中，所述使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
    获取所述第三光源区中所述第三待驱动子像素的所述第三补偿驱动灰阶G3；
    获取所述第一光源区中所述第一待驱动子像素的所述第一补偿驱动灰阶G1；
    获取所述第二待驱动子像素与所述第一待驱动子像素之间的所述距离L 2;
    获取所述第一待驱动子像素与所述第三待驱动子像素之间的所述距离L；
    得到所述第二公式G2'=G1+L 2 2/L 2*|G3-G1|。
  6. 如权利要求5所述的显示面板驱动方法，其中，所述获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3的步骤包括：
    获取所述第三光源区中所述第三待驱动子像素的第三实际驱动灰阶；
    获取所述第三待驱动子像素的第三补偿参数；
    根据所述第三实际驱动灰阶和第三补偿参数得到所述第三补偿驱动灰阶。
  7. 如权利要求5所述的显示面板驱动方法，其中，所述获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1的步骤包括：
    获取所述第一光源区中所述第一待驱动子像素的第一实际驱动灰阶；
    获取所述第一待驱动子像素的第一补偿参数；
    根据所述第一实际驱动灰阶和所述第一补偿参数得到所述第一补偿驱动灰阶。
  8. 如权利要求1所述的显示面板驱动方法，其中，所述调用拼接区补偿系数的步骤包括：
    根据第一光源区的第一待驱动子像素确定第一拼接区补偿系数；
    根据第三光源区的第三待驱动子像素确定第二拼接区补偿系数；
    根据所述第一拼接区补偿系数和所述第二拼接区补偿系数确定所述拼接区补偿系数。
  9. 如权利要求1所述的显示面板驱动方法，其中，所述根据拼接区补偿系数计算出待驱动子像素的第二驱动灰阶的步骤包括：使用所述待驱动子像素的所述第一驱动灰阶与所述拼接区补偿系数的乘积得出所述第二驱动灰阶。
  10. 如权利要求1所述的显示面板驱动方法，其中，所述获取待驱动子像素的第一驱动灰阶的步骤还包括：获取待驱动像素的第三驱动灰阶。
  11. 如权利要求10所述的显示面板驱动方法，其中，所述确定所述待驱动子像素所处区域，并在所述待驱动子像素位于拼接区时，调用拼接区补偿系数的步骤还包括：确定所述待驱动像素所处区域，并在所述待驱动像素位于所述拼接区时，调用所述拼接区补偿系数。
  12. 如权利要求11所述的显示面板驱动方法，其中，所述根据所述拼接区补偿系数计算出所述待驱动子像素的第二驱动灰阶的步骤还包括：根据所述拼接区补偿系数计算出所述待驱动像素的第四驱动灰阶。
  13. 如权利要求12所述的显示面板驱动方法，其中，所述使用所述第二驱动灰阶驱动所述待驱动子像素的步骤还包括：使用所述第四驱动灰阶驱动所述待驱动像素。
  14. 如权利要求11所述的显示面板驱动方法，其中，所述调用拼接区补偿系数的步骤包括：
    使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定所述拼接区中第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为所述拼接区中所述第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区中第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区中第一待驱动子像素的第一补偿驱动灰阶，L 1为所述第二待驱动子像素与所述第三待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
    获取所述拼接区中所述第二待驱动子像素的第二实际驱动灰阶G2；
    使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到所述拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
  15. 如权利要求14所述的显示面板驱动方法，其中，所述使用第一公式G2'=G3+L 1 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
    获取所述第三光源区中所述第三待驱动子像素的所述第三补偿驱动灰阶G3；
    获取所述第一光源区中所述第一待驱动子像素的所述第一补偿驱动灰阶G1；
    获取所述第二待驱动子像素与所述第三待驱动子像素之间的距离L 1，
    获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
    得到所述第一公式G2'=G3+L 1 2/L 2*|G3-G1|。
  16. 如权利要求11所述的显示面板驱动方法，其中，所述确定所述待驱动子像素所处区域，并在所述待驱动子像素位于拼接区时，调用拼接区补偿系数的步骤包括：
    使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定所述拼接区中第二待驱动子像素的第二补偿驱动灰阶，其中，G2'为所述拼接区中第二待驱动子像素的第二补偿驱动灰阶，G3为第三光源区中第三待驱动子像素的第三补偿驱动灰阶，G1为第一光源区中第一待驱动子像素的第一补偿驱动灰阶，L 2为所述第二待驱动子像素与所述第一待驱动子像素之间的距离，L为所述第一待驱动子像素与所述第三待驱动子像素之间的距离；
    获取所述拼接区中所述第二待驱动子像素的第二实际驱动灰阶G2；
    使用所述第二实际驱动灰阶G2和所述第二补偿驱动灰阶G2'得到所述拼接区补偿系数，所述拼接区补偿系数k= G2'/ G2。
  17. 如权利要求16所述的显示面板驱动方法，其中，所述使用第二公式G2'=G1+L 2 2/L 2*|G3-G1|确定拼接区第二待驱动子像素的第二补偿驱动灰阶的步骤包括：
    获取所述第三光源区中所述第三待驱动子像素的所述第三补偿驱动灰阶G3；
    获取所述第一光源区中所述第一待驱动子像素的所述第一补偿驱动灰阶G1；
    获取所述第二待驱动子像素与所述第一待驱动子像素之间的所述距离L 2；
    获取所述第一待驱动子像素与所述第三待驱动子像素之间的距离L；
    得到所述第二公式G2'=G1+L 2 2/L 2*|G3-G1|。
  18. 如权利要求17所述的显示面板驱动方法，其中，所述获取第三光源区第三待驱动子像素的第三补偿驱动灰阶G3的步骤包括：
    获取所述第三光源区中所述第三待驱动子像素的第三实际驱动灰阶；
    获取所述第三待驱动子像素的第三补偿参数；
    根据所述第三实际驱动灰阶和第三补偿参数得到所述第三补偿驱动灰阶。
  19. 如权利要求17所述的显示面板驱动方法，其中，所述获取第一光源区第一待驱动子像素的第一补偿驱动灰阶G1的步骤包括：
    获取所述第一光源区中所述第一待驱动子像素的第一实际驱动灰阶；
    获取所述第一待驱动子像素的第一补偿参数；
    根据所述第一实际驱动灰阶和所述第一补偿参数得到所述第一补偿驱动灰阶。
  20. 一种显示装置，其包括：
    显示面板；
    驱动芯片，用于执行如权利要求1所述的显示面板驱动方法，以驱动显示面板。
PCT/CN2020/076546 2019-08-14 2020-02-25 显示面板驱动方法和显示装置 Ceased WO2021027270A1 (zh)

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