WO2024124849A1 - Compensation method and compensation apparatus for display panel, and display apparatus - Google Patents

Compensation method and compensation apparatus for display panel, and display apparatus Download PDF

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Publication number
WO2024124849A1
WO2024124849A1 PCT/CN2023/101940 CN2023101940W WO2024124849A1 WO 2024124849 A1 WO2024124849 A1 WO 2024124849A1 CN 2023101940 W CN2023101940 W CN 2023101940W WO 2024124849 A1 WO2024124849 A1 WO 2024124849A1
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Prior art keywords
compensation
compensated
compensation value
display
grayscale
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PCT/CN2023/101940
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French (fr)
Chinese (zh)
Inventor
陈�峰
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昆山国显光电有限公司
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Publication of WO2024124849A1 publication Critical patent/WO2024124849A1/en

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  • the present application relates to the technical field of display devices, and in particular to a compensation method, a compensation device and a display device for a display panel.
  • the display panel will be provided with a light-transmitting display area, which can transmit light and display, and sub-pixels are also provided in the light-transmitting display area.
  • the driving circuit of the sub-pixel in the light-transmitting display area will be placed in other areas, which results in a long distance between the sub-pixel and the driving circuit in the light-transmitting display area, resulting in insufficient display brightness in the light-transmitting display area, resulting in uneven display of the display panel.
  • the embodiments of the present application provide a compensation method, a compensation device and a display device for a display panel, aiming to solve the problem of uneven display of the display panel.
  • the first aspect of the present application provides a compensation method for a display panel.
  • the device comprises a first display area and a second display area, the transmittance of the first display area is greater than the transmittance of the second display area, and the compensation method comprises:
  • the object to be compensated is compensated according to the actual compensation value.
  • the embodiment of the second aspect of the present application further provides a compensation device, which is used for a display panel, a first display area and a second display area of the display panel, the transmittance of the first display area is greater than the transmittance of the second display area, and the compensation device includes:
  • a storage module used for storing a plurality of normal compensation values under a plurality of first gray scales
  • a positioning module used to determine the location of the object to be compensated
  • a compensation calculation module for obtaining a supplementary compensation value of the object to be compensated according to a compensation position mapping relationship when the object to be compensated is located in the first display area, and determining an actual compensation value of the object to be compensated at a target grayscale according to the supplementary compensation value and a normal compensation value;
  • the compensation module is used to compensate the object to be compensated according to the actual compensation value.
  • An embodiment of the third aspect of the present application further provides a display device, comprising the compensation device of the above embodiment.
  • the position of the object to be compensated is first obtained.
  • the supplementary compensation value of the object to be compensated is determined according to the compensation position mapping relationship.
  • the actual compensation value of the object to be compensated is determined based on the normal compensation value of the display panel at the first grayscale and the above-mentioned supplementary compensation value.
  • the object to be compensated is compensated according to the actual compensation value.
  • the actual compensation value of the object to be compensated comes from the normal compensation value and the supplementary compensation value, so that the actual compensation value of the first display area is higher, which can improve the uneven display caused by insufficient display brightness in the first display area. Therefore, the compensation method provided in the embodiment of the present application can solve the problem of uneven display of the display panel.
  • FIG1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application.
  • FIG2 is a schematic flow chart of a compensation method for a display panel provided in an embodiment of the present application.
  • FIG3 is a schematic flow chart of a step of a compensation method for a display panel provided in an embodiment of the present application
  • FIG. 4 is a schematic flow chart of another step of a compensation method for a display panel provided in an embodiment of the present application.
  • FIG5 is a schematic flow chart of another step of a compensation method for a display panel provided in an embodiment of the present application.
  • FIG6 is a display image of a first display area of a display panel in an example
  • FIG7 is a schematic structural diagram of a first display area of a display panel in an example
  • FIG8 is a schematic diagram of the structure of a compensation device provided in an embodiment of the present application.
  • multiple means more than two;
  • the terms “upper”, “lower”, “left”, “right”, “inner”, “outer”, etc. indicate directions or positional relationships only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.
  • the terms “first”, “second”, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
  • installation and "connection” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected.
  • the display panel In order to realize the under-screen integration of some modules, the display panel will be provided with a light-transmitting display area.
  • the distance between the sub-pixels and the driving circuit in the light-transmitting display area is relatively far, which makes the display brightness of the light-transmitting display area insufficient, resulting in uneven display of the display panel.
  • the sub-pixels in the light-transmitting display area are usually compensated. For example, grayscale compensation is performed on the sub-pixels in the light-transmitting display area, but in dark states such as low grayscale or even ultra-low grayscale, the problem of uneven display (Mura) will be aggravated. At this time, Demura compensation can no longer meet the display requirements, resulting in obvious display differences between the light-transmitting display area and the main display area of the display panel in the dark state.
  • the present application is proposed to solve the above technical problems.
  • the compensation method, compensation device and display device of the embodiments of the present application are described in detail below with reference to FIGS. 1 to 8 .
  • FIG. 1 is a structural diagram of a display panel provided in an embodiment of the present application.
  • FIG2 is a schematic flow chart of a compensation method for a display panel provided in an embodiment of the present application.
  • an embodiment of the first aspect of the present application provides a compensation method for a display panel, wherein the display panel includes a first display area AA1 and a second display area AA2, wherein the transmittance of the first display area AA1 is greater than the transmittance of the second display area AA2, and the compensation method includes:
  • Step S01 obtaining a normal compensation value of a display panel at a first gray scale.
  • the first grayscale may take any appropriate grayscale value, for example, the first grayscale is 32 grayscales, 64 grayscales, 128 grayscales, etc.
  • Step S02 acquiring the position of the object to be compensated, and when the object to be compensated is located in the first display area AA1, determining the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship.
  • the display panel includes a plurality of sub-pixels located in the first display area AA1 and the second display area AA2, and the object to be compensated is the sub-pixel that needs to be displayed next.
  • the compensation position mapping relationship includes the supplementary compensation values required for the sub-pixels at different positions.
  • the compensation position mapping relationship can be stored in advance in the relevant components of the display device. When in use, the compensation position mapping relationship is directly queried according to the position of the object to be compensated to determine the supplementary compensation value.
  • Step S03 determining the actual compensation value of the object to be compensated according to the supplementary compensation value and the normal compensation value.
  • Step S04 Compensating the object to be compensated according to the actual compensation value.
  • the position of the object to be compensated is first obtained.
  • the supplementary compensation value of the object to be compensated is determined according to the compensation position mapping relationship.
  • the actual compensation value of the object to be compensated is determined based on the normal compensation value of the display panel at the first grayscale and the above-mentioned supplementary compensation value.
  • the object to be compensated is compensated according to the actual compensation value.
  • the actual compensation value of the object to be compensated comes from the normal compensation value and the supplementary compensation value, so that the actual compensation value is higher, which can improve the uneven display caused by insufficient display brightness in the first display area AA1. Therefore, the compensation method provided in the embodiment of the present application can solve the problem of uneven display of the display panel.
  • step S02 when the object to be compensated is located in the second display area AA2, the object to be compensated is compensated according to the normal compensation value.
  • the brightness of the sub-pixels in the second display area AA2 is usually higher than the brightness of the sub-pixels in the first display area AA1. Therefore, the sub-pixels in the second display area AA2 do not need additional compensation, and can be compensated according to the normal compensation value.
  • the target grayscale of the object to be compensated is obtained.
  • the actual compensation value of the object to be compensated is determined by using a linear interpolation calculation method according to the compensation values of the object to be compensated at the first grayscale and the grayscale 0, and the object to be compensated located in the second display area AA2 is compensated according to the actual compensation value.
  • the first grayscale is 32 grayscale
  • the target grayscale is 16 grayscale.
  • the actual compensation value at 16 grayscale is determined by using a linear interpolation calculation method according to the compensation values of 32 grayscale and 0 grayscale, and then the object to be compensated located in the second display area AA2 is compensated according to the actual compensation value.
  • the target grayscale is greater than or equal to the first grayscale
  • the object to be compensated is directly compensated according to the normal compensation value.
  • the target grayscale may be obtained in step S02, and when the target grayscale is less than the first grayscale, the above-mentioned supplementary compensation value is determined, and in step S03, the actual compensation value of the object to be compensated at the target grayscale is obtained. That is, in step S02: the position of the object to be compensated and the target grayscale are obtained, and when the object to be compensated is located in the first display area AA1 and the target grayscale is less than the first grayscale, the supplementary compensation value of the object to be compensated is determined according to the compensation position mapping relationship. That is, in step S03: the actual compensation value of the object to be compensated at the target grayscale is determined according to the supplementary compensation value and the normal compensation value.
  • the target grayscale of the object to be compensated is also obtained in step S02, that is, the grayscale to be displayed by the object to be compensated, and it is determined whether to obtain a supplementary compensation value according to the target grayscale.
  • the target grayscale is less than the first grayscale, that is, when the target grayscale is small, the supplementary compensation value is obtained according to the compensation position mapping relationship.
  • the target grayscale is small, the problem of uneven display of the display panel will be aggravated.
  • the actual compensation value of the object to be compensated at the target grayscale can be determined according to the supplementary compensation value and the normal compensation value, so that the compensation is more accurate, which can further improve the problem of uneven display of the display panel.
  • step S02 when the target grayscale is greater than or equal to the first grayscale, the object to be compensated may be compensated directly according to the normal compensation value, thereby reducing the calculation pressure.
  • the first grayscale is grayscale 32, when the target grayscale is lower than grayscale 32, for example, when the target grayscale is grayscale 16 or grayscale 8, and the object to be compensated is located in the first display area AA1, according to
  • the compensation position mapping relationship determines the supplementary compensation value, which can improve the display effect of the first display area AA1 at low grayscale or even ultra-low grayscale, and better improve the display non-uniformity problem of the display panel in a dark state.
  • the object to be compensated may be directly compensated according to the normal compensation value to reduce the calculation pressure.
  • the user may determine the value of the first grayscale according to the actual display condition of the display panel. For example, when the user observes that the display panel has a problem of uneven display between the first display area AA1 and the second display area AA2 when the grayscale is lower than 32, the first grayscale may be set to 32. When the user observes that the display panel has a problem of uneven display between the first display area AA1 and the second display area AA2 when the grayscale is lower than 64 or 128, the first grayscale may be set to 64 or 128.
  • the actual compensation value may be determined directly according to the normal compensation value and the supplementary compensation value.
  • step S01 further includes: obtaining a plurality of normal compensation values and a compensation value of the first display area AA1 at a plurality of first grayscales and a second grayscale, wherein the normal compensation value corresponding to the lowest grayscale a among the plurality of first grayscales is the first compensation value, and the compensation value corresponding to the second grayscale is the second compensation value.
  • step S03 further includes:
  • Step S031 performing linear interpolation calculation according to the first compensation value and the second compensation value to determine an analog compensation value at a target grayscale.
  • Step S032 determining the actual compensation value of the object to be compensated at the target grayscale according to the simulated compensation value and the supplementary compensation value.
  • the simulation compensation value at the target grayscale can be calculated first according to step S031, and then in step S032, the actual compensation value is determined according to the simulation compensation value and the supplementary compensation value, which can improve the accuracy of the actual compensation value.
  • the second grayscale is grayscale 0.
  • a includes at least one of grayscale 16, grayscale 32, grayscale 64, and grayscale 128.
  • a first compensation value at grayscale 32 and a second compensation value at grayscale 0 are obtained in step S02.
  • the analog compensation value under 16 gray levels can be calculated by using the linear difference according to the first compensation value and the second compensation value.
  • the simulation compensation value may be determined according to the following formula (1):
  • h3 is the simulation compensation value
  • h1 is the first compensation value
  • h2 is the second compensation value at grayscale
  • k is the target grayscale value
  • a is the lowest grayscale among the plurality of the first grayscales, that is, a is the first grayscale corresponding to the first compensation value.
  • a is 32
  • k is 16
  • the simulation compensation value h3 at grayscale 16 can be determined by obtaining the first compensation value h1 at grayscale 32 and the second compensation value h2 at grayscale 0.
  • the object to be compensated which is located in the first display area AA1 and has a target grayscale less than the first grayscale, is usually compensated directly according to the analog compensation value.
  • the dark state that is, when the display grayscale of the display panel is less than the first grayscale, the problem of uneven display between the first display area AA1 and the second display area AA2 will be aggravated, and the analog compensation value determined according to the normal compensation value is difficult to meet the display brightness requirements.
  • the present application determines the actual compensation value of the object to be compensated by combining the two compensation values of the analog compensation value and the supplementary compensation value, which can well improve the problem of uneven display of the display panel in the dark state.
  • the target grayscale when the object to be compensated is located in the first display area AA1, and the target grayscale is less than the first grayscale, different actual compensation values are determined according to different target grayscales in step S03, for example: when the target grayscale is m, the actual compensation value of the object to be compensated is determined to be the first actual compensation value; when the target grayscale is n, the actual compensation value of the object to be compensated is determined to be the second actual compensation value, wherein the first grayscale>m>n, and the first actual compensation value is less than the second actual compensation value.
  • the first grayscale can be a as mentioned above, then when a>m>n, the first actual compensation value is less than the second actual compensation value.
  • different actual compensation values are obtained according to different target grayscale values, which can improve the compensation accuracy.
  • the target grayscale is less than the first grayscale, that is, when the display panel is in a dark display state
  • the actual compensation value increases.
  • the first actual compensation value is less than the second actual compensation value, which can well improve the problem of aggravated display unevenness of the display panel in a dark display state, and better improve the problem of uneven display of the display surface pattern.
  • the actual compensation of the object to be compensated at grayscale 16 is The value will be smaller than the actual compensation value obtained at grayscale 8. Therefore, when the display panel is in a dark display state and the display non-uniformity phenomenon is aggravated, the display difference between the first display area AA1 and the second display area AA2 can be better improved by increasing the actual compensation value of the grayscale.
  • the simulated grayscale can be determined by linear difference calculation based on the compensation value obtained at 32 grayscales and the compensation value obtained at 0 grayscale.
  • the first simulated grayscale at 16 grayscales can be determined by linear difference calculation based on the compensation value obtained at 32 grayscales and the compensation value obtained at 0 grayscale, and then the simulated grayscale at 8 grayscales can be determined by linear difference calculation based on the compensation value obtained at the first simulated grayscale and the compensation value obtained at 0 grayscale. That is, the compensation value of the lowest grayscale a can be obtained directly based on the stored data, or it can be obtained by using a linear difference calculation method based on the stored data and the compensation value of 0 grayscale.
  • mapping the component compensation position in step S02. For example, the supplementary compensation values of sub-pixels at different positions can be directly observed and set, and then the supplementary compensation values with these sub-pixel positions can be stored. When used, the corresponding supplementary compensation value can be directly selected according to the position of the sub-pixel (i.e., the object to be compensated).
  • step S02 the following steps are further included:
  • Step S021 in the debugging stage of the display panel, a first display image of the first display area AA1 at a target gray scale and a second display image of the second display area AA2 at a target gray scale are obtained.
  • Step S022 determining a compensation position mapping relationship according to the first display image and the second display image.
  • the first display image of the first display area AA1 and the second display image of the second display area AA2 at the target grayscale are first obtained, and the display difference of the first display image can be determined based on the comparison between the first display image and the second display image, so the compensation position mapping relationship can be determined based on the first display image and the second display image.
  • These compensation position mapping relationships can more accurately reflect how the first display area AA1 should be compensated at the target grayscale to reduce the display difference between it and the second display area AA2, so the supplementary compensation value determined according to the compensation position mapping relationship can better improve the display difference between the first display area AA1 and the second display area AA2 at the target grayscale.
  • grayscale data that needs to be compensated in the first display area AA1 can be determined based on the display difference between the first display image and the second display image, and these grayscale data are used as supplementary compensation values.
  • These grayscale data can be determined by the user based on the display effect observed visually, for example, the first display area AA1 is compensated until the display difference between the first display area AA1 and the second display area AA2 is visually very unobvious, and these grayscale data can be used as supplementary compensation values.
  • these grayscale data can be measured by an instrument, for example, the display difference between the first display image and the second display image can be determined by the instrument, and these display differences include at least one of color cast difference and brightness difference, and then the first display area AA1 is compensated until the display difference between the display image of the first display area AA1 and the display image of the second display area AA2 obtained by the instrument is reduced to within a preset range, and these grayscale data can be used as supplementary compensation values.
  • the first display area AA1 and the second display area AA2 may be made to display the same image at the target grayscale, so as to more accurately determine the display difference between the first display image and the second display image.
  • step S022 may further include:
  • Step S0221 dividing the first display area AA1 into a plurality of compensation areas according to the first display image and the second display image.
  • Step S0222 determining a compensation position mapping relationship of each compensation area according to the display image of each compensation area and the second display image.
  • step S02 the position of the object to be compensated and the target grayscale are obtained.
  • the supplementary compensation value of the object to be compensated is determined according to the mapping relationship between the compensation area and the compensation position of the object to be compensated.
  • the first display area AA1 includes multiple different sub-pixels, and the distances from different sub-pixels to the pixel driving circuits are different.
  • the characteristics of the pixel driving circuits corresponding to different sub-pixels may also be different. These different distances and/or characteristics will cause different display differences between different sub-pixels in the first display area AA1 and the second display area AA2.
  • step S0221 the first display area AA1 is divided into a plurality of different compensation areas according to the first display image and the second display image, and then in step S0222, the position mapping relationship of each compensation area is determined according to the display image of each compensation area and the second display image.
  • step S0222 the position mapping relationship of each compensation area is determined according to the display image of each compensation area and the second display image.
  • FIG. 6 is a first display image obtained in an example, and the first display area AA1 is divided into a plurality of compensation areas according to the first display image. For example, as shown in FIG.
  • the first display area AA1 includes a first compensation area A1, a second compensation area A2, a third compensation area A3 and a fourth compensation area A4, the fourth compensation area A4 is located at the center of the first display area AA1, the third compensation area A3 includes two third sub-areas located on both sides of the fourth compensation area A4 in the first direction, and the third sub-area includes at least one column of sub-pixels arranged along the second direction Y.
  • the second compensation area A2 includes a second sub-area located on the side of each third compensation area A3 away from the fourth compensation area A4, and the second sub-area includes at least one column of sub-pixels arranged along the second direction Y.
  • the first compensation area A1 includes a first area located on the side of each second compensation area A2 away from the third compensation area A3 and a second area located on the side of the fourth compensation area A4 in the second direction, the first area includes at least one column of sub-pixels arranged along the second direction Y, and the second area includes at least one row of sub-pixels arranged along the first direction X.
  • each compensation area includes a plurality of display units, and the display units include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel.
  • the compensation position mapping relationship of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of the compensation area is determined according to the display image of the compensation area and the second display image.
  • the supplementary compensation value is also determined according to the color and compensation position mapping relationship of the object to be compensated.
  • a plurality of display units are included in the same compensation area, and the display unit includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel of different colors, and the supplementary compensation values of these different color sub-pixels may be different.
  • the embodiment of the present application determines the compensation position mapping relationship of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of the compensation area respectively according to the display image of the compensation area, that is, the compensation position mapping relationship includes the supplementary compensation value corresponding to the sub-pixel of the specified position and the specified color.
  • the supplementary compensation value is determined according to the position of the sub-pixel and the luminous color of the sub-pixel, which can further improve the accuracy of the compensation and better improve the problem of uneven display of the display panel.
  • the compensation area includes more than two display units, and the difference in display characteristic information of the two or more display units is less than or equal to a preset value, and the display characteristic information includes display brightness and/or Display colors.
  • the compensation area can be divided according to display brightness, and the preset value includes a brightness preset value.
  • the compensation area includes more than two display units whose display brightness difference is less than the brightness preset value.
  • the display brightness of these display units is close, and the supplementary compensation values that need to be compensated are close.
  • the brightness preset value can be set according to the user's usage requirements.
  • the compensation area can also be divided according to the display color, and the preset value includes a color preset value, and the color preset value can be determined according to the color coordinate.
  • the compensation area includes more than two display units whose display color difference is less than the color preset value, and the display colors of these display units are similar, the color deviation defects are similar, and the supplementary compensation values that need to be compensated are similar.
  • the color preset value can be set according to the user's usage requirements.
  • the display panel is lit at the target grayscale, and then a first display image of the first display area AA1 and a second display image of the second display area AA2 are obtained, and the first display image is divided into a plurality of compensation areas according to display characteristic information of the first display image, each compensation area includes a plurality of display units having similar display characteristic information, and supplementary compensation values of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in each compensation area are determined according to display differences between the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in the display unit and the second display image, and the corresponding relationship between the supplementary compensation value and the luminous color and the position of the sub-pixel is stored as a compensation position mapping relationship.
  • the analog compensation value of the first display area AA1 at the target gray scale is determined according to the normal compensation value.
  • the actual compensation value is obtained by combining the supplementary compensation value and the simulated compensation value, and the object to be compensated is compensated according to the actual compensation value, so as to better improve the problem of uneven display of the display panel.
  • the correspondence between the actual compensation value and the luminous color and position of the sub-pixel can be directly stored as a compensation position mapping relationship.
  • the compensation position mapping relationship is queried according to the position of the object to be compensated and the displayed color to obtain the actual compensation value of the object to be compensated, so as to better improve the problem of uneven display of the display panel.
  • the second aspect of the present application also provides a compensation device 100, which is used for a display panel, wherein the display panel has a first display area AA1 and a second display area AA2, and the first display area
  • the transmittance of AA1 is greater than the transmittance of the second display area AA2
  • the compensation device 100 includes a storage module 110, a positioning module 120, a compensation calculation module 130 and a compensation module 140.
  • the storage module 110 is used to store multiple normal compensation values under multiple first grayscales; the positioning module 120 is used to determine the location of the object to be compensated; the compensation calculation module 130 is used to obtain the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship when the object to be compensated is located in the first display area AA1, and determine the actual compensation value of the object to be compensated under the target grayscale according to the supplementary compensation value and the normal compensation value; the compensation module 140 is used to compensate the object to be compensated according to the actual compensation value.
  • the embodiment of the present application compensates the object to be compensated according to the actual compensation value.
  • the actual compensation value of the object to be compensated comes from the normal compensation value and the supplementary compensation value, so that the actual compensation value is higher, which can improve the display unevenness caused by insufficient display brightness of the first display area AA1. Therefore, the compensation method provided by the embodiment of the present application can solve the problem of uneven display of the display panel.
  • the embodiment of the third aspect of the present application further provides a display device, comprising the compensation device 100 of any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the present application comprises the above-mentioned compensation device 100, the display device provided by the embodiment of the present application has the beneficial effects of the compensation device 100 of the above-mentioned embodiment, which will not be repeated here.
  • the display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDA), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles and other devices with display functions.
  • PDA personal digital assistants
  • An embodiment of the present application also provides a terminal device, including a processor, a memory, and a computer program stored in the memory and executable on the processor.
  • a terminal device including a processor, a memory, and a computer program stored in the memory and executable on the processor.
  • the computer program is executed by the processor, the various processes of the above-mentioned compensation method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.
  • the embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each process of the above compensation method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

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Abstract

A compensation method and compensation apparatus for a display panel, and a display apparatus. The display panel comprises a first display area and a second display area, wherein the light transmittance of the first display area is greater than the light transmittance of the second display area. The compensation method comprises: acquiring a normal-state compensation value of a display panel at a first grayscale (01); acquiring the position where an object to be compensated for is located, and when said object is located in a first display area, determining a supplementary compensation value of said object according to a compensation position mapping relationship (02); determining an actual compensation value of said object according to the supplementary compensation value and the normal-state compensation value (03); and compensating for said object according to the actual compensation value (04). The compensation method can solve the problem of the display of a display panel being uneven.

Description

显示面板的补偿方法、补偿装置及显示装置Compensation method, compensation device and display device for display panel
相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS
本申请要求享有于2022年12月14日提交的名称为“显示面板的补偿方法、补偿装置及显示装置”的中国专利申请第202211608626.1号的优先权，该申请的全部内容通过引用并入本文中。This application claims priority to Chinese Patent Application No. 202211608626.1, filed on December 14, 2022, entitled “Compensation Method, Compensation Device and Display Device for Display Panel,” and the entire contents of which are incorporated herein by reference.
技术领域Technical Field
本申请涉及显示设备技术领域，尤其涉及一种显示面板的补偿方法、补偿装置及显示装置。The present application relates to the technical field of display devices, and in particular to a compensation method, a compensation device and a display device for a display panel.
背景技术Background technique
随着电子设备的快速发展，用户对屏占比的要求越来越高，使得电子设备的全面屏显示受到业界越来越多的关注。With the rapid development of electronic devices, users have higher and higher requirements for screen-to-body ratio, making the full-screen display of electronic devices receive more and more attention in the industry.
传统的电子设备如手机、平板电脑等，由于需要集成诸如前置摄像头、听筒以及红外感应元件等。现有技术中，可通过在显示屏上开槽(Notch)或开孔，外界光线可通过屏幕上的开槽或开孔进入位于屏幕下方的感光元件。但是这些电子设备均不是真正意义上的全面屏，并不能在整个屏幕的各个区域均进行显示，例如其前置摄像头对应区域不能显示画面。Traditional electronic devices such as mobile phones and tablets need to integrate front cameras, receivers, and infrared sensors. In the prior art, notches or holes can be made on the display screen, and external light can enter the photosensitive element below the screen through the notches or holes on the screen. However, these electronic devices are not true full screens and cannot display in all areas of the entire screen. For example, the area corresponding to the front camera cannot display images.
为了改善上述缺陷，显示面板会设置透光显示区，透光显示区可透光可显示，透光显示区内也设置有子像素。为了提高透光显示区的透光率，透光显示区内子像素的驱动电路会放置于其他区域，这就导致透光显示区的子像素和驱动电路之间的距离较远，使得透光显示区的显示亮度不足，导致显示面板出现显示不均的问题。In order to improve the above defects, the display panel will be provided with a light-transmitting display area, which can transmit light and display, and sub-pixels are also provided in the light-transmitting display area. In order to improve the transmittance of the light-transmitting display area, the driving circuit of the sub-pixel in the light-transmitting display area will be placed in other areas, which results in a long distance between the sub-pixel and the driving circuit in the light-transmitting display area, resulting in insufficient display brightness in the light-transmitting display area, resulting in uneven display of the display panel.
发明内容Summary of the invention
本申请实施例提供一种显示面板的补偿方法、补偿装置及显示装置，旨在解决显示面板显示不均的问题。The embodiments of the present application provide a compensation method, a compensation device and a display device for a display panel, aiming to solve the problem of uneven display of the display panel.
本申请第一方面的实施例提供了一种显示面板的补偿方法，显示面板 包括第一显示区和第二显示区，第一显示区的透光率大于第二显示区的透光率，补偿方法包括：The first aspect of the present application provides a compensation method for a display panel. The device comprises a first display area and a second display area, the transmittance of the first display area is greater than the transmittance of the second display area, and the compensation method comprises:
获取显示面板在第一灰阶下的常态补偿值；Obtaining a normal compensation value of the display panel at a first gray scale;
获取待补偿对象所在位置，且当待补偿对象位于第一显示区时，根据补偿位置映射关系确定待补偿对象的补充补偿值；Acquire the position of the object to be compensated, and when the object to be compensated is located in the first display area, determine the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship;
根据补充补偿值和常态补偿值确定待补偿对象的实际补偿值；Determine the actual compensation value of the object to be compensated according to the supplementary compensation value and the normal compensation value;
根据实际补偿值对待补偿对象进行补偿。本申请第二方面的实施例还提供了一种补偿装置，补偿装置用于显示面板，显示面板第一显示区和第二显示区，第一显示区的透光率大于第二显示区的透光率，补偿装置包括：The object to be compensated is compensated according to the actual compensation value. The embodiment of the second aspect of the present application further provides a compensation device, which is used for a display panel, a first display area and a second display area of the display panel, the transmittance of the first display area is greater than the transmittance of the second display area, and the compensation device includes:
存储模块，用于存储多个第一灰阶下的多个常态补偿值；A storage module, used for storing a plurality of normal compensation values under a plurality of first gray scales;
定位模块，用于确定待补偿对象的所在位置；A positioning module, used to determine the location of the object to be compensated;
补偿计算模块，用于当待补偿对象位于第一显示区时，根据补偿位置映射关系获取待补偿对象的补充补偿值，并根据补充补偿值和常态补偿值确定待补偿对象在目标灰阶下的实际补偿值；a compensation calculation module, for obtaining a supplementary compensation value of the object to be compensated according to a compensation position mapping relationship when the object to be compensated is located in the first display area, and determining an actual compensation value of the object to be compensated at a target grayscale according to the supplementary compensation value and a normal compensation value;
补偿模块，用于根据实际补偿值对待补偿对象进行补偿。The compensation module is used to compensate the object to be compensated according to the actual compensation value.
本申请第三方面的实施例还提供了一种显示装置，包括上述实施例的补偿装置。An embodiment of the third aspect of the present application further provides a display device, comprising the compensation device of the above embodiment.
在本申请实施例提供的显示面板的补偿方法中，先获取待补偿对象所在的位置，当待补偿对象位于第一显示区时，即当待补偿对象位于透光率较大的显示区时，会根据补偿位置映射关系确定待补偿对象的补充补偿值。然后根据获取的显示面板在第一灰阶下的常态补偿值、及上述的补充补偿值这两个补偿值确定待补偿对象的实际补偿值，最后根据实际补偿值对待补偿对象进行补偿。待补偿对象的实际补偿值来自于常态补偿值和补充补偿值，使得第一显示区的实际补偿值较高，能够改善由于第一显示区显示亮度不足导致的显示不均，因此本申请实施例提供的补偿方法能够解决显示面板的显示不均的问题。In the compensation method of the display panel provided in the embodiment of the present application, the position of the object to be compensated is first obtained. When the object to be compensated is located in the first display area, that is, when the object to be compensated is located in the display area with a larger transmittance, the supplementary compensation value of the object to be compensated is determined according to the compensation position mapping relationship. Then, the actual compensation value of the object to be compensated is determined based on the normal compensation value of the display panel at the first grayscale and the above-mentioned supplementary compensation value. Finally, the object to be compensated is compensated according to the actual compensation value. The actual compensation value of the object to be compensated comes from the normal compensation value and the supplementary compensation value, so that the actual compensation value of the first display area is higher, which can improve the uneven display caused by insufficient display brightness in the first display area. Therefore, the compensation method provided in the embodiment of the present application can solve the problem of uneven display of the display panel.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本申请实施例提供的一种显示面板的结构示意图；FIG1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application;
图2是本申请实施例提供的一种显示面板的补偿方法的流程示意图； FIG2 is a schematic flow chart of a compensation method for a display panel provided in an embodiment of the present application;
图3是本申请实施例提供的一种显示面板的补偿方法的某步骤的流程示意图；FIG3 is a schematic flow chart of a step of a compensation method for a display panel provided in an embodiment of the present application;
图4是本申请实施例提供的一种显示面板的补偿方法的另一步骤的流程示意图；4 is a schematic flow chart of another step of a compensation method for a display panel provided in an embodiment of the present application;
图5是本申请实施例提供的一种显示面板的补偿方法的又一步骤的流程示意图；FIG5 is a schematic flow chart of another step of a compensation method for a display panel provided in an embodiment of the present application;
图6是一种示例中显示面板的第一显示区的显示图像；FIG6 is a display image of a first display area of a display panel in an example;
图7是一种示例中显示面板的第一显示区的结构示意图；FIG7 is a schematic structural diagram of a first display area of a display panel in an example;
图8是本申请实施例提供的一种补偿装置的结构示意图。FIG8 is a schematic diagram of the structure of a compensation device provided in an embodiment of the present application.
具体实施方式Detailed ways
在本申请的描述中，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。术语“安装”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。In the description of the present application, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
为了实现一些模组的屏下集成，显示面板会设置透光显示区，透光显示区的子像素和驱动电路之间的距离较远，使得透光显示区的显示亮度不足，导致显示面板出现显示不均的问题。为了弥补上述的显示不均，通常会对透光显示区的子像素进行补偿。例如，对透光显示区的子像素进行灰阶补偿，但是在低灰阶、甚至超低灰阶等暗态下，显示不均(Mura)的问题会加剧，这时候的Demura补偿已经难以满足显示要求，导致显示面板在暗态下透光显示区和主显示区之间出现明显的显示差异。In order to realize the under-screen integration of some modules, the display panel will be provided with a light-transmitting display area. The distance between the sub-pixels and the driving circuit in the light-transmitting display area is relatively far, which makes the display brightness of the light-transmitting display area insufficient, resulting in uneven display of the display panel. In order to compensate for the above-mentioned display unevenness, the sub-pixels in the light-transmitting display area are usually compensated. For example, grayscale compensation is performed on the sub-pixels in the light-transmitting display area, but in dark states such as low grayscale or even ultra-low grayscale, the problem of uneven display (Mura) will be aggravated. At this time, Demura compensation can no longer meet the display requirements, resulting in obvious display differences between the light-transmitting display area and the main display area of the display panel in the dark state.
为了解决上述技术问题，提出了本申请，为了更好地理解本申请，下面结合图1至图8对本申请实施例的补偿方法、补偿装置及显示装置，进行详细描述。The present application is proposed to solve the above technical problems. In order to better understand the present application, the compensation method, compensation device and display device of the embodiments of the present application are described in detail below with reference to FIGS. 1 to 8 .
请参阅图1和图2，图1为本申请实施例提供的一种显示面板的结构示 意图，图2为本申请实施例提供的一种显示面板的补偿方法流程示意图。Please refer to FIG. 1 and FIG. 2. FIG. 1 is a structural diagram of a display panel provided in an embodiment of the present application. FIG2 is a schematic flow chart of a compensation method for a display panel provided in an embodiment of the present application.
如图1和图2所示，本申请第一方面的实施例提供了一种显示面板的补偿方法，显示面板包括第一显示区AA1和第二显示区AA2，第一显示区AA1的透光率大于第二显示区AA2的透光率，补偿方法包括：As shown in FIG. 1 and FIG. 2 , an embodiment of the first aspect of the present application provides a compensation method for a display panel, wherein the display panel includes a first display area AA1 and a second display area AA2, wherein the transmittance of the first display area AA1 is greater than the transmittance of the second display area AA2, and the compensation method includes:
步骤S01：获取显示面板在第一灰阶下的常态补偿值。Step S01: obtaining a normal compensation value of a display panel at a first gray scale.
可选的，第一灰阶可以取任何合适的灰阶值，例如第一灰阶为32灰阶、64灰阶、128灰阶等。Optionally, the first grayscale may take any appropriate grayscale value, for example, the first grayscale is 32 grayscales, 64 grayscales, 128 grayscales, etc.
步骤S02：获取待补偿对象所在位置，且当待补偿对象位于第一显示区AA1时，根据补偿位置映射关系确定待补偿对象的补充补偿值。Step S02: acquiring the position of the object to be compensated, and when the object to be compensated is located in the first display area AA1, determining the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship.
显示面板包括多个位于第一显示区AA1和第二显示区AA2的子像素，待补偿对象即接下来需要进行显示的子像素。补偿位置映射关系包含了不同位置的子像素所需要的补充补偿值。补偿位置映射关系可以提前存储于显示装置的相关器件中，在使用时，直接根据待补偿对象的位置查询补偿位置映射关系确定补充补偿值。The display panel includes a plurality of sub-pixels located in the first display area AA1 and the second display area AA2, and the object to be compensated is the sub-pixel that needs to be displayed next. The compensation position mapping relationship includes the supplementary compensation values required for the sub-pixels at different positions. The compensation position mapping relationship can be stored in advance in the relevant components of the display device. When in use, the compensation position mapping relationship is directly queried according to the position of the object to be compensated to determine the supplementary compensation value.
步骤S03：根据补充补偿值和常态补偿值确定待补偿对象的实际补偿值。Step S03: determining the actual compensation value of the object to be compensated according to the supplementary compensation value and the normal compensation value.
步骤S04：根据实际补偿值对待补偿对象进行补偿。Step S04: Compensating the object to be compensated according to the actual compensation value.
在本申请实施例提供的显示面板的补偿方法中，先获取待补偿对象所在的位置，当待补偿对象位于第一显示区AA1时，即当待补偿对象位于透光率较大的显示区时，会根据补偿位置映射关系确定待补偿对象的补充补偿值。然后根据获取的显示面板在第一灰阶下的常态补偿值、及上述的补充补偿值这两个补偿值确定待补偿对象的实际补偿值，最后根据实际补偿值对待补偿对象进行补偿。待补偿对象的实际补偿值来自于常态补偿值和补充补偿值，使得实际补偿值较高，能够改善由于第一显示区AA1显示亮度不足导致的显示不均，因此本申请实施例提供的补偿方法能够解决显示面板的显示不均的问题。In the compensation method of the display panel provided in the embodiment of the present application, the position of the object to be compensated is first obtained. When the object to be compensated is located in the first display area AA1, that is, when the object to be compensated is located in the display area with a larger transmittance, the supplementary compensation value of the object to be compensated is determined according to the compensation position mapping relationship. Then, the actual compensation value of the object to be compensated is determined based on the normal compensation value of the display panel at the first grayscale and the above-mentioned supplementary compensation value. Finally, the object to be compensated is compensated according to the actual compensation value. The actual compensation value of the object to be compensated comes from the normal compensation value and the supplementary compensation value, so that the actual compensation value is higher, which can improve the uneven display caused by insufficient display brightness in the first display area AA1. Therefore, the compensation method provided in the embodiment of the present application can solve the problem of uneven display of the display panel.
在步骤S02中，当待补偿对象位于第二显示区AA2时，根据常态补偿值对待补偿对象进行补偿。当补偿对象位于第二显示区AA2时，第二显示区AA2内的子像素的亮度通常较高，高于第一显示区AA1的子像素亮度， 因此第二显示区AA2的子像素不需要额外的补偿，按照常态补偿值进行补偿即可。In step S02, when the object to be compensated is located in the second display area AA2, the object to be compensated is compensated according to the normal compensation value. When the object to be compensated is located in the second display area AA2, the brightness of the sub-pixels in the second display area AA2 is usually higher than the brightness of the sub-pixels in the first display area AA1. Therefore, the sub-pixels in the second display area AA2 do not need additional compensation, and can be compensated according to the normal compensation value.
当待补偿对象位于第二显示区AA2时，根据常态补偿值对待补偿对象进行补偿的方式有多种，例如，获取待补偿对象的目标灰阶，目标灰阶小于第一灰阶时，根据待补偿对象在第一灰阶和0灰阶的补偿值选用线性插值计算法确定待补偿对象的实际补偿值，根据实际补偿值对位于第二显示区AA2的待补偿对象进行补偿。例如，第一灰阶为32灰阶，目标灰阶为16灰阶，根据32灰阶和0灰阶的补偿值采用进行线性插值计算法确定16灰阶下的实际补偿值，然后根据实际补偿值对位于第二显示区AA2的待补偿对象进行补偿。在另一些实施例中，当目标灰阶大于或等于第一灰阶时，直接根据常态补偿值对待补偿对象进行补偿。When the object to be compensated is located in the second display area AA2, there are multiple ways to compensate the object to be compensated according to the normal compensation value. For example, the target grayscale of the object to be compensated is obtained. When the target grayscale is less than the first grayscale, the actual compensation value of the object to be compensated is determined by using a linear interpolation calculation method according to the compensation values of the object to be compensated at the first grayscale and the grayscale 0, and the object to be compensated located in the second display area AA2 is compensated according to the actual compensation value. For example, the first grayscale is 32 grayscale, and the target grayscale is 16 grayscale. The actual compensation value at 16 grayscale is determined by using a linear interpolation calculation method according to the compensation values of 32 grayscale and 0 grayscale, and then the object to be compensated located in the second display area AA2 is compensated according to the actual compensation value. In other embodiments, when the target grayscale is greater than or equal to the first grayscale, the object to be compensated is directly compensated according to the normal compensation value.
在一些可选的实施例中，在步骤S02中还可以获取目标灰阶，且当目标灰阶小于第一灰阶时，确定上述的补充补偿值，并且在步骤S03中待补偿对象在目标灰阶下的实际补偿值。即在步骤S02中：获取待补偿对象所在位置和目标灰阶，当待补偿对象位于第一显示区AA1，且目标灰阶小于第一灰阶时，根据补偿位置映射关系确定待补偿对象的补充补偿值。即在步骤S03中：根据补充补偿值和常态补偿值确定待补偿对象在目标灰阶下的实际补偿值。In some optional embodiments, the target grayscale may be obtained in step S02, and when the target grayscale is less than the first grayscale, the above-mentioned supplementary compensation value is determined, and in step S03, the actual compensation value of the object to be compensated at the target grayscale is obtained. That is, in step S02: the position of the object to be compensated and the target grayscale are obtained, and when the object to be compensated is located in the first display area AA1 and the target grayscale is less than the first grayscale, the supplementary compensation value of the object to be compensated is determined according to the compensation position mapping relationship. That is, in step S03: the actual compensation value of the object to be compensated at the target grayscale is determined according to the supplementary compensation value and the normal compensation value.
在这些可选的实施例中，在步骤S02中还获取待补偿对象的目标灰阶，即待补偿对象将要显示的灰阶，根据目标灰阶确定是否要获取补充补偿值。当目标灰阶小于第一灰阶，即当目标灰阶较小时，根据补偿位置映射关系获取补充补偿值。当目标灰阶较小时，显示面板显示不均的问题会加剧，此时在步骤S03中能够根据补充补偿值和常态补偿值确定待补偿对象在目标灰阶下的实际补偿值，使得补偿更加精确，能够进一步改善显示面板显示不均的问题。In these optional embodiments, the target grayscale of the object to be compensated is also obtained in step S02, that is, the grayscale to be displayed by the object to be compensated, and it is determined whether to obtain a supplementary compensation value according to the target grayscale. When the target grayscale is less than the first grayscale, that is, when the target grayscale is small, the supplementary compensation value is obtained according to the compensation position mapping relationship. When the target grayscale is small, the problem of uneven display of the display panel will be aggravated. At this time, in step S03, the actual compensation value of the object to be compensated at the target grayscale can be determined according to the supplementary compensation value and the normal compensation value, so that the compensation is more accurate, which can further improve the problem of uneven display of the display panel.
可选的，在步骤S02中，当目标灰阶大于或等于第一灰阶时，可以直接根据常态补偿值对待补偿对象进行补偿，能够降低运算压力。Optionally, in step S02, when the target grayscale is greater than or equal to the first grayscale, the object to be compensated may be compensated directly according to the normal compensation value, thereby reducing the calculation pressure.
可选的，第一灰阶为32灰阶，当目标灰阶低于32灰阶，例如当目标灰阶为16灰阶或8灰阶时，且待补偿对象位于第一显示区AA1时，根据 补偿位置映射关系确定补充补偿值，能够改善低灰阶、甚至超低灰阶下第一显示区AA1的显示效果，更好地改善显示面板在暗态下的显示不均一的问题。Optionally, the first grayscale is grayscale 32, when the target grayscale is lower than grayscale 32, for example, when the target grayscale is grayscale 16 or grayscale 8, and the object to be compensated is located in the first display area AA1, according to The compensation position mapping relationship determines the supplementary compensation value, which can improve the display effect of the first display area AA1 at low grayscale or even ultra-low grayscale, and better improve the display non-uniformity problem of the display panel in a dark state.
可选的，当目标灰阶大于或等于第一灰阶，例如当目标灰阶大于或等于32灰阶时，可以直接根据常态补偿值对待补偿对象进行补偿，以减小运算压力。Optionally, when the target grayscale is greater than or equal to the first grayscale, for example, when the target grayscale is greater than or equal to grayscale 32, the object to be compensated may be directly compensated according to the normal compensation value to reduce the calculation pressure.
可选的，用户可以根据显示面板的实际显示情况确定第一灰阶的取值，例如当用户观察到显示面板在低于32灰阶时，会出现第一显示区AA1和第二显示区AA2显示不均一的问题，那么第一灰阶可以定为32灰阶。当用户观察到显示面板在低于64灰阶或者128灰阶时，会出现第一显示区AA1和第二显示区AA2显示不均一的问题，那么第一灰阶可以定为64灰阶或者128灰阶。Optionally, the user may determine the value of the first grayscale according to the actual display condition of the display panel. For example, when the user observes that the display panel has a problem of uneven display between the first display area AA1 and the second display area AA2 when the grayscale is lower than 32, the first grayscale may be set to 32. When the user observes that the display panel has a problem of uneven display between the first display area AA1 and the second display area AA2 when the grayscale is lower than 64 or 128, the first grayscale may be set to 64 or 128.
在步骤S03中，可以直接根据常态补偿值和补充补偿值确定实际补偿值。In step S03, the actual compensation value may be determined directly according to the normal compensation value and the supplementary compensation value.
在另一些可选的实施例中，在步骤S01中还包括：获取所述第一显示区AA1在多个第一灰阶下的多个常态补偿值和第二灰阶下的补偿值，多个所述第一灰阶中的最低灰阶a对应的所述常态补偿值为第一补偿值，第二灰阶对应的补偿值为第二补偿值。如图3所示，在步骤S03中还包括：In some other optional embodiments, step S01 further includes: obtaining a plurality of normal compensation values and a compensation value of the first display area AA1 at a plurality of first grayscales and a second grayscale, wherein the normal compensation value corresponding to the lowest grayscale a among the plurality of first grayscales is the first compensation value, and the compensation value corresponding to the second grayscale is the second compensation value. As shown in FIG. 3 , step S03 further includes:
步骤S031：根据第一补偿值和第二补偿值进行线性插值计算确定目标灰阶下的模拟补偿值。Step S031: performing linear interpolation calculation according to the first compensation value and the second compensation value to determine an analog compensation value at a target grayscale.
步骤S032：根据模拟补偿值和补充补偿值确定待补偿对象在目标灰阶下的实际补偿值。Step S032: determining the actual compensation value of the object to be compensated at the target grayscale according to the simulated compensation value and the supplementary compensation value.
在这些可选的实施例中，首先根据步骤S031能够计算出目标灰阶下的模拟补偿值，然后步骤S032中，根据模拟补偿值和补充补偿值确定实际补偿值，能够提高实际补偿值的精确性。In these optional embodiments, the simulation compensation value at the target grayscale can be calculated first according to step S031, and then in step S032, the actual compensation value is determined according to the simulation compensation value and the supplementary compensation value, which can improve the accuracy of the actual compensation value.
可选的，第二灰阶为0灰阶。可选的，a包括16灰阶、32灰阶、64灰阶和128灰阶中的至少一者。Optionally, the second grayscale is grayscale 0. Optionally, a includes at least one of grayscale 16, grayscale 32, grayscale 64, and grayscale 128.
例如，当第一灰阶为32灰阶，目标灰阶为16灰阶时，在步骤S02中获取32灰阶时的第一补偿值，0灰阶时的第二补偿值。在步骤S031中首先 根据第一补偿值和第二补偿值利用线性差值能够计算获得16灰阶下的模拟补偿值。For example, when the first grayscale is grayscale 32 and the target grayscale is grayscale 16, a first compensation value at grayscale 32 and a second compensation value at grayscale 0 are obtained in step S02. The analog compensation value under 16 gray levels can be calculated by using the linear difference according to the first compensation value and the second compensation value.
可选的，在步骤S031中可以根据如下公式(1)确定模拟补偿值：
Optionally, in step S031, the simulation compensation value may be determined according to the following formula (1):
其中，h3为模拟补偿值，h1为第一补偿值，h2为0灰阶下的第二补偿值，k为目标灰阶值，a为多个所述第一灰阶中的最低灰阶，即a为第一补偿值对应的第一灰阶。例如，a为32，k为16，通过获取32灰阶下的第一补偿值h1和0灰阶下的第二补偿值h2可以确定16灰阶下的模拟补偿值h3。Wherein, h3 is the simulation compensation value, h1 is the first compensation value, h2 is the second compensation value at grayscale 0, k is the target grayscale value, and a is the lowest grayscale among the plurality of the first grayscales, that is, a is the first grayscale corresponding to the first compensation value. For example, a is 32, k is 16, and the simulation compensation value h3 at grayscale 16 can be determined by obtaining the first compensation value h1 at grayscale 32 and the second compensation value h2 at grayscale 0.
在相关技术中，通常直接根据模拟补偿值对位于第一显示区AA1、且目标灰阶小于第一灰阶的待补偿对象进行补偿。但是在暗态下，即当显示面板的显示灰阶小于第一灰阶时，第一显示区AA1和第二显示区AA2显示不均的问题会加剧，根据常态补偿值确定的模拟补偿值已经难以达到显示亮度需求。本申请通过结合模拟补偿值和补充补偿值两个补偿值来确定待补偿对象的实际补偿值，能够很好地改善暗态下显示面板显示不均的问题。In the related art, the object to be compensated, which is located in the first display area AA1 and has a target grayscale less than the first grayscale, is usually compensated directly according to the analog compensation value. However, in the dark state, that is, when the display grayscale of the display panel is less than the first grayscale, the problem of uneven display between the first display area AA1 and the second display area AA2 will be aggravated, and the analog compensation value determined according to the normal compensation value is difficult to meet the display brightness requirements. The present application determines the actual compensation value of the object to be compensated by combining the two compensation values of the analog compensation value and the supplementary compensation value, which can well improve the problem of uneven display of the display panel in the dark state.
在一些可选的实施例中，当待补偿对象位于第一显示区AA1，且目标灰阶小于第一灰阶时，在步骤S03中根据不同的目标灰阶会确定不同的实际补偿值，例如：当目标灰阶为m时，确定待补偿对象的实际补偿值为第一实际补偿值；当目标灰阶为n时，确定待补偿对象的实际补偿值为第二实际补偿值，其中，第一灰阶＞m＞n，且第一实际补偿值小于第二实际补偿值。可选的，第一灰阶可以取上述的a，那么a＞m＞n时，第一实际补偿值小于第二实际补偿值。In some optional embodiments, when the object to be compensated is located in the first display area AA1, and the target grayscale is less than the first grayscale, different actual compensation values are determined according to different target grayscales in step S03, for example: when the target grayscale is m, the actual compensation value of the object to be compensated is determined to be the first actual compensation value; when the target grayscale is n, the actual compensation value of the object to be compensated is determined to be the second actual compensation value, wherein the first grayscale>m>n, and the first actual compensation value is less than the second actual compensation value. Optionally, the first grayscale can be a as mentioned above, then when a>m>n, the first actual compensation value is less than the second actual compensation value.
在本申请实施例提供的补偿方法中，根据不同的目标灰阶值会得到不同的实际补偿值，能够提高补偿精度。此外，当目标灰阶小于第一灰阶，即当显示面板处于暗态显示状态时，随着目标灰阶的减小，实际补偿值会增大。如上所述，当a＞m＞n时，第一实际补偿值小于第二实际补偿值，能够很好地改善显示面板在暗态显示时显示不均加剧的问题，更好地改善显示面案显示不均一的问题。In the compensation method provided in the embodiment of the present application, different actual compensation values are obtained according to different target grayscale values, which can improve the compensation accuracy. In addition, when the target grayscale is less than the first grayscale, that is, when the display panel is in a dark display state, as the target grayscale decreases, the actual compensation value increases. As described above, when a>m>n, the first actual compensation value is less than the second actual compensation value, which can well improve the problem of aggravated display unevenness of the display panel in a dark display state, and better improve the problem of uneven display of the display surface pattern.
例如，当m为16，n为8时，待补偿对象在16灰阶时得到的实际补偿 值会小于其在8灰阶时得到的实际补偿值。因此，当显示面板在暗态显示状态，显示不均一的现象加剧时，通过调高灰阶的实际补偿值，能够更好地改善第一显示区AA1和第二显示区AA2之间的显示差异。For example, when m is 16 and n is 8, the actual compensation of the object to be compensated at grayscale 16 is The value will be smaller than the actual compensation value obtained at grayscale 8. Therefore, when the display panel is in a dark display state and the display non-uniformity phenomenon is aggravated, the display difference between the first display area AA1 and the second display area AA2 can be better improved by increasing the actual compensation value of the grayscale.
可选的，当第一灰阶为32灰阶，目标灰阶为16时，模拟灰阶可以根据32灰阶得到的补偿值与0灰阶得到的补偿值进行线性差值计算确定。当第一灰阶为32灰阶，目标灰阶为8灰阶时，可以先根据32灰阶得到的补偿值与0灰阶得到的补偿值进行线性差值计算确定16灰阶时的第一模拟灰阶，然后根据第一模拟灰阶与0灰阶得到的补偿值进行线性差值计算确定8灰阶的模拟灰阶。即最低灰阶a的补偿值可以直接根据存储数据获得，也可以根据存储数据与0灰阶的补偿值选用线性差值计算法获得。Optionally, when the first grayscale is 32 grayscales and the target grayscale is 16, the simulated grayscale can be determined by linear difference calculation based on the compensation value obtained at 32 grayscales and the compensation value obtained at 0 grayscale. When the first grayscale is 32 grayscales and the target grayscale is 8 grayscales, the first simulated grayscale at 16 grayscales can be determined by linear difference calculation based on the compensation value obtained at 32 grayscales and the compensation value obtained at 0 grayscale, and then the simulated grayscale at 8 grayscales can be determined by linear difference calculation based on the compensation value obtained at the first simulated grayscale and the compensation value obtained at 0 grayscale. That is, the compensation value of the lowest grayscale a can be obtained directly based on the stored data, or it can be obtained by using a linear difference calculation method based on the stored data and the compensation value of 0 grayscale.
在步骤S02中构件补偿位置映射关系的方法有多种，例如可以直接观察设定不同位置的子像素的补充补偿值，然后将带有这些子像素位置的补充补偿值存储，使用时根据子像素(即待补偿对象)的位置来直接选选取对应的补充补偿值。There are many methods for mapping the component compensation position in step S02. For example, the supplementary compensation values of sub-pixels at different positions can be directly observed and set, and then the supplementary compensation values with these sub-pixel positions can be stored. When used, the corresponding supplementary compensation value can be directly selected according to the position of the sub-pixel (i.e., the object to be compensated).
在另一些可选的实施例中，如图4所示，在步骤S02之前还包括：In some other optional embodiments, as shown in FIG4 , before step S02, the following steps are further included:
步骤S021：在显示面板的调试阶段，获取第一显示区AA1在目标灰阶下的第一显示图像和第二显示区AA2在目标灰阶下的第二显示图像。Step S021: in the debugging stage of the display panel, a first display image of the first display area AA1 at a target gray scale and a second display image of the second display area AA2 at a target gray scale are obtained.
步骤S022：根据第一显示图像和第二显示图像确定补偿位置映射关系。Step S022: determining a compensation position mapping relationship according to the first display image and the second display image.
在这些可选的实施例中，首先获取在目标灰阶下第一显示区AA1的第一显示图像和第二显示区AA2的第二显示图像，根据第一显示图像和第二显示图像的对比能够确定第一显示图像的显示差异，因此能够根据第一显示图像和第二显示图像确定补偿位置映射关系。这些补偿位置映射关系能够更加准确的反应目标灰阶下第一显示区AA1应该如何补偿才能减小其与第二显示区AA2的显示差异，因此根据补偿位置映射关系确定的补充补偿值能够更好地改善第一显示区AA1和第二显示区AA2在目标灰阶下的显示差异。In these optional embodiments, the first display image of the first display area AA1 and the second display image of the second display area AA2 at the target grayscale are first obtained, and the display difference of the first display image can be determined based on the comparison between the first display image and the second display image, so the compensation position mapping relationship can be determined based on the first display image and the second display image. These compensation position mapping relationships can more accurately reflect how the first display area AA1 should be compensated at the target grayscale to reduce the display difference between it and the second display area AA2, so the supplementary compensation value determined according to the compensation position mapping relationship can better improve the display difference between the first display area AA1 and the second display area AA2 at the target grayscale.
可选的，在步骤S022中，根据第一显示图像和第二显示图像的显示差异，可以确定第一显示区AA1需要补偿的灰阶数据，并把这些灰阶数据作为补充补偿值。这些灰阶数据可以由用户根据目测到的显示效果确定，例 如对第一显示区AA1进行补偿直至目测第一显示区AA1和第二显示区AA2的显示差异非常不明显，这些灰阶数据可以作为补充补偿值。或者这些灰阶数据可以根据仪器测得，例如可以由仪器确定第一显示图像和第二显示图像的显示差异，这些显示差异包括色偏差异、亮度差异中的至少一种，然后对第一显示区AA1进行补偿直至仪器获得的第一显示区AA1的显示图像和第二显示区AA2的显示图像的显示差异减小至预设范围之内，这些灰阶数据可以作为补充补偿值。Optionally, in step S022, grayscale data that needs to be compensated in the first display area AA1 can be determined based on the display difference between the first display image and the second display image, and these grayscale data are used as supplementary compensation values. These grayscale data can be determined by the user based on the display effect observed visually, for example For example, the first display area AA1 is compensated until the display difference between the first display area AA1 and the second display area AA2 is visually very unobvious, and these grayscale data can be used as supplementary compensation values. Alternatively, these grayscale data can be measured by an instrument, for example, the display difference between the first display image and the second display image can be determined by the instrument, and these display differences include at least one of color cast difference and brightness difference, and then the first display area AA1 is compensated until the display difference between the display image of the first display area AA1 and the display image of the second display area AA2 obtained by the instrument is reduced to within a preset range, and these grayscale data can be used as supplementary compensation values.
可选的，在步骤S021中，可以让第一显示区AA1和第二显示区AA2在目标灰阶下显示相同的图像，以更加准确判断第一显示图像和第二显示图像的显示差异。Optionally, in step S021 , the first display area AA1 and the second display area AA2 may be made to display the same image at the target grayscale, so as to more accurately determine the display difference between the first display image and the second display image.
可选的，如图5所示，在步骤S022中还可以包括：Optionally, as shown in FIG5 , step S022 may further include:
步骤S0221：根据第一显示图像和第二显示图像将第一显示区AA1划分为多个补偿区。Step S0221: dividing the first display area AA1 into a plurality of compensation areas according to the first display image and the second display image.
步骤S0222：根据各补偿区的显示图像与第二显示图像确定各补偿区的补偿位置映射关系。Step S0222: determining a compensation position mapping relationship of each compensation area according to the display image of each compensation area and the second display image.
那么在步骤S02中：获取待补偿对象所在位置和目标灰阶，当待补偿对象位于第一显示区AA1，且目标灰阶小于第一灰阶时，根据待补偿对象所在的补偿区和补偿位置映射关系确定待补偿对象的补充补偿值。Then in step S02: the position of the object to be compensated and the target grayscale are obtained. When the object to be compensated is located in the first display area AA1 and the target grayscale is less than the first grayscale, the supplementary compensation value of the object to be compensated is determined according to the mapping relationship between the compensation area and the compensation position of the object to be compensated.
第一显示区AA1包括多个不同的子像素，不同的子像素至像素驱动电路的距离不同，不同的子像素对应的像素驱动电路的特性也可能存在不同，这些距离不同和/或特性不同会导致第一显示区AA1内不同的子像素与第二显示区AA2存在不同的显示差异。The first display area AA1 includes multiple different sub-pixels, and the distances from different sub-pixels to the pixel driving circuits are different. The characteristics of the pixel driving circuits corresponding to different sub-pixels may also be different. These different distances and/or characteristics will cause different display differences between different sub-pixels in the first display area AA1 and the second display area AA2.
在本申请实施例中，首先在步骤S0221中根据第一显示图像和第二显示图像将第一显示区AA1划分为多个不同的补偿区，然后在步骤S0222中根据各补偿区的显示图像与第二显示图像确定各补偿区的位置映射关系。本申请实施例通过将第一显示区AA1划分为多个补偿区，根据不同补偿区与第二显示区AA2的显示差异可以精确地对各补偿区内的子像素进行补偿，能够更好地改善显示面板的显示不均的问题。In the embodiment of the present application, firstly, in step S0221, the first display area AA1 is divided into a plurality of different compensation areas according to the first display image and the second display image, and then in step S0222, the position mapping relationship of each compensation area is determined according to the display image of each compensation area and the second display image. In the embodiment of the present application, by dividing the first display area AA1 into a plurality of compensation areas, the sub-pixels in each compensation area can be accurately compensated according to the display difference between different compensation areas and the second display area AA2, and the display unevenness problem of the display panel can be better improved.
补偿区的设置方式有多种，例如补偿区为多个，且多个补偿区相互套 设，即至少其中一个补偿区环绕另一或另一些补偿区的至少部分设置。如图6所示，图6为一种示例中获取的第一显示图像，根据第一显示图像将第一显示区AA1划分为多个补偿区。例如，如图7所示，可选的，第一显示区AA1包括第一补偿区A1、第二补偿区A2、第三补偿区A3和第四补偿区A4，第四补偿区A4位于第一显示区AA1的中心位置，第三补偿区A3包括位于第四补偿区A4在第一方向两侧的两个第三子区，第三子区包括至少一列沿第二方向Y排布的子像素。第二补偿区A2包括位于各第三补偿区A3背离第四补偿区A4一侧的第二子区，第二子区包括至少一列沿第二方向Y排布的子像素。第一补偿区A1包括位于各第二补偿区A2背离第三补偿区A3一侧的第一区和位于第四补偿区A4在第二方向一侧的第二区，第一区包括至少一列沿第二方向Y排布的子像素，第二区包括至少一行沿第一方向X排布的子像素。There are many ways to set up the compensation area, for example, there are multiple compensation areas, and the multiple compensation areas are mutually overlapped. Assume that at least one of the compensation areas is arranged around at least part of another or other compensation areas. As shown in FIG. 6, FIG. 6 is a first display image obtained in an example, and the first display area AA1 is divided into a plurality of compensation areas according to the first display image. For example, as shown in FIG. 7, optionally, the first display area AA1 includes a first compensation area A1, a second compensation area A2, a third compensation area A3 and a fourth compensation area A4, the fourth compensation area A4 is located at the center of the first display area AA1, the third compensation area A3 includes two third sub-areas located on both sides of the fourth compensation area A4 in the first direction, and the third sub-area includes at least one column of sub-pixels arranged along the second direction Y. The second compensation area A2 includes a second sub-area located on the side of each third compensation area A3 away from the fourth compensation area A4, and the second sub-area includes at least one column of sub-pixels arranged along the second direction Y. The first compensation area A1 includes a first area located on the side of each second compensation area A2 away from the third compensation area A3 and a second area located on the side of the fourth compensation area A4 in the second direction, the first area includes at least one column of sub-pixels arranged along the second direction Y, and the second area includes at least one row of sub-pixels arranged along the first direction X.
在其他实施例中，补偿区还可以仅为一个，补偿区即为第一显示区AA1。In other embodiments, there may be only one compensation area, which is the first display area AA1.
可选的，各补偿区包括多个显示单元，显示单元包括第一颜色子像素、第二颜色子像素和第三颜色子像素，在步骤S0222中：根据补偿区的显示图像与第二显示图像分别确定补偿区的第一颜色子像素、第二颜色子像素和第三颜色子像素的补偿位置映射关系。在步骤S02中还根据待补偿对象的颜色和补偿位置映射关系确定补充补偿值。Optionally, each compensation area includes a plurality of display units, and the display units include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. In step S0222, the compensation position mapping relationship of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of the compensation area is determined according to the display image of the compensation area and the second display image. In step S02, the supplementary compensation value is also determined according to the color and compensation position mapping relationship of the object to be compensated.
在这些可选的实施例中，同一个补偿区内包括多个显示单元，显示单元包括颜色不同的第一颜色子像素、第二颜色子像素和第三颜色子像素，这些不同颜色子像素的补充补偿值可能存在不同。本申请实施例根据补偿区的显示图像来分别确定所述补偿区的第一颜色子像素、第二颜色子像素和第三颜色子像素的补偿位置映射关系，即补偿位置映射关系包括指定位置、指定颜色的子像素对应的补充补偿值。在步骤S02中根据子像素所在的位置和子像素的发光颜色来确定其补充补偿值，能够进一步提高补偿的精确性，更好地改善显示面板显示不均一的问题。In these optional embodiments, a plurality of display units are included in the same compensation area, and the display unit includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel of different colors, and the supplementary compensation values of these different color sub-pixels may be different. The embodiment of the present application determines the compensation position mapping relationship of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of the compensation area respectively according to the display image of the compensation area, that is, the compensation position mapping relationship includes the supplementary compensation value corresponding to the sub-pixel of the specified position and the specified color. In step S02, the supplementary compensation value is determined according to the position of the sub-pixel and the luminous color of the sub-pixel, which can further improve the accuracy of the compensation and better improve the problem of uneven display of the display panel.
可选的，补偿区包括两个以上的显示单元，且两个以上的显示单元的显示特征信息的差异小于或等于预设值，显示特征信息包括显示亮度和/或 显示颜色。Optionally, the compensation area includes more than two display units, and the difference in display characteristic information of the two or more display units is less than or equal to a preset value, and the display characteristic information includes display brightness and/or Display colors.
例如，补偿区可以根据显示亮度进行划分，预设值包括亮度预设值，此时补偿区包括两个以上显示亮度之差小于亮度预设值的多个显示单元，这些显示单元的显示亮度接近，需要进行补偿的补充补偿值接近。亮度预设值可以根据用户的使用需求进行设定。For example, the compensation area can be divided according to display brightness, and the preset value includes a brightness preset value. In this case, the compensation area includes more than two display units whose display brightness difference is less than the brightness preset value. The display brightness of these display units is close, and the supplementary compensation values that need to be compensated are close. The brightness preset value can be set according to the user's usage requirements.
可选的，补偿区还可以根据显示颜色进行划分，预设值包括颜色预设值，颜色预设值可以根据色坐标确定。此时补偿区包括两个以上显示颜色差异小于颜色预设值的多个显示单元，这些显示单元的显示颜色接近，色偏缺陷接近，需要进行补偿的补充补偿值接近。颜色预设值可以根据用户的使用需求进行设定。Optionally, the compensation area can also be divided according to the display color, and the preset value includes a color preset value, and the color preset value can be determined according to the color coordinate. In this case, the compensation area includes more than two display units whose display color difference is less than the color preset value, and the display colors of these display units are similar, the color deviation defects are similar, and the supplementary compensation values that need to be compensated are similar. The color preset value can be set according to the user's usage requirements.
在本申请实施例提供的另一些补偿方法中，在显示面板的调试阶段，令显示面板在目标灰阶下点亮，然后获取第一显示区AA1的第一显示图像和第二显示区AA2的第二显示图像，根据第一显示图像的显示特征信息将第一显示图像划分为多个补偿区，各补偿区包括多个显示特征信息接近的显示单元，根据显示单元内第一颜色子像素、第二颜色子像素和第三颜色子像素与第二显示图像多的显示差异确定各补偿区的第一颜色子像素、第二颜色子像素和第三颜色子像素的补充补偿值，将补充补偿值和子像素的发光颜色、所处位置的对应关系存储为补偿位置映射关系。In other compensation methods provided in embodiments of the present application, during the debugging stage of the display panel, the display panel is lit at the target grayscale, and then a first display image of the first display area AA1 and a second display image of the second display area AA2 are obtained, and the first display image is divided into a plurality of compensation areas according to display characteristic information of the first display image, each compensation area includes a plurality of display units having similar display characteristic information, and supplementary compensation values of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in each compensation area are determined according to display differences between the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in the display unit and the second display image, and the corresponding relationship between the supplementary compensation value and the luminous color and the position of the sub-pixel is stored as a compensation position mapping relationship.
然后根据常态补偿值确定目标灰阶下第一显示区AA1的模拟补偿值。Then, the analog compensation value of the first display area AA1 at the target gray scale is determined according to the normal compensation value.
接着通过将补充补偿值和模拟补偿值结合得到实际补偿值，并根据这些实际补偿值对待补偿对象进行补偿，以更好地改善显示面板显示不均一的问题。Then, the actual compensation value is obtained by combining the supplementary compensation value and the simulated compensation value, and the object to be compensated is compensated according to the actual compensation value, so as to better improve the problem of uneven display of the display panel.
在另一些可选的实施例中，还可以直接将上述的实际补偿值和子像素的发光颜色、所处位置的对应关系存储为补偿位置映射关系。在显示面板的显示过程中，根据待补偿对象所处位置、所显示的颜色查询补偿位置映射关系得到待补偿对象的实际补偿值，以更好地改善显示面板显示不均一的问题。In some other optional embodiments, the correspondence between the actual compensation value and the luminous color and position of the sub-pixel can be directly stored as a compensation position mapping relationship. During the display process of the display panel, the compensation position mapping relationship is queried according to the position of the object to be compensated and the displayed color to obtain the actual compensation value of the object to be compensated, so as to better improve the problem of uneven display of the display panel.
本申请第二方面的实施例还提供一种补偿装置100，补偿装置100用于显示面板，显示面板第一显示区AA1和第二显示区AA2，第一显示区 AA1的透光率大于第二显示区AA2的透光率，补偿装置100包括存储模块110、定位模块120、补偿计算模块130和补偿模块140。存储模块110用于存储多个第一灰阶下的多个常态补偿值；定位模块120用于确定待补偿对象的所在位置；补偿计算模块130用于当待补偿对象位于第一显示区AA1时，根据补偿位置映射关系获取待补偿对象的补充补偿值，并根据补充补偿值和常态补偿值确定待补偿对象在目标灰阶下的实际补偿值；补偿模块140用于根据实际补偿值对待补偿对象进行补偿。The second aspect of the present application also provides a compensation device 100, which is used for a display panel, wherein the display panel has a first display area AA1 and a second display area AA2, and the first display area The transmittance of AA1 is greater than the transmittance of the second display area AA2, and the compensation device 100 includes a storage module 110, a positioning module 120, a compensation calculation module 130 and a compensation module 140. The storage module 110 is used to store multiple normal compensation values under multiple first grayscales; the positioning module 120 is used to determine the location of the object to be compensated; the compensation calculation module 130 is used to obtain the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship when the object to be compensated is located in the first display area AA1, and determine the actual compensation value of the object to be compensated under the target grayscale according to the supplementary compensation value and the normal compensation value; the compensation module 140 is used to compensate the object to be compensated according to the actual compensation value.
本申请实施例根据实际补偿值对待补偿对象进行补偿。而待补偿对象的实际补偿值来自于常态补偿值和补充补偿值，使得实际补偿值较高，能够改善由于第一显示区AA1显示亮度不足导致的显示不均，因此本申请实施例提供的补偿方法能够解决显示面板的显示不均的问题。The embodiment of the present application compensates the object to be compensated according to the actual compensation value. The actual compensation value of the object to be compensated comes from the normal compensation value and the supplementary compensation value, so that the actual compensation value is higher, which can improve the display unevenness caused by insufficient display brightness of the first display area AA1. Therefore, the compensation method provided by the embodiment of the present application can solve the problem of uneven display of the display panel.
本申请第三方面的实施例还提供一种显示装置，包括上述任一第一方面实施例的补偿装置100。由于本申请实施例提供的显示装置包括上述的补偿装置100，因此本申请实施例提供的显示装置具有上述实施例的补偿装置100具有的有益效果，在此不再赘述。The embodiment of the third aspect of the present application further provides a display device, comprising the compensation device 100 of any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the present application comprises the above-mentioned compensation device 100, the display device provided by the embodiment of the present application has the beneficial effects of the compensation device 100 of the above-mentioned embodiment, which will not be repeated here.
本申请实施例中的显示装置包括但不限于手机、个人数字助理(Personal Digital Assistant，简称：PDA)、平板电脑、电子书、电视机、门禁、智能固定电话、控制台等具有显示功能的设备。The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDA), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles and other devices with display functions.
本申请实施例还提供一种终端设备，包括处理器、存储器及存储在存储器上并可在所述处理器上运行的计算机程序，该计算机程序被处理器执行时实现上述补偿方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。An embodiment of the present application also provides a terminal device, including a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the various processes of the above-mentioned compensation method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.
本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述补偿方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。 The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each process of the above compensation method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

Claims (18)

  1. 一种显示面板的补偿方法，其中，所述显示面板包括第一显示区和第二显示区，所述第一显示区的透光率大于所述第二显示区的透光率，所述补偿方法包括：A compensation method for a display panel, wherein the display panel comprises a first display area and a second display area, the transmittance of the first display area is greater than the transmittance of the second display area, and the compensation method comprises:
    获取所述显示面板在第一灰阶下的常态补偿值；Acquire a normal compensation value of the display panel at a first gray scale;
    获取待补偿对象所在位置，且当所述待补偿对象位于所述第一显示区时，根据补偿位置映射关系确定所述待补偿对象的补充补偿值；Acquiring a position of an object to be compensated, and when the object to be compensated is located in the first display area, determining a supplementary compensation value of the object to be compensated according to a compensation position mapping relationship;
    根据所述补充补偿值和所述常态补偿值确定所述待补偿对象的实际补偿值；Determining an actual compensation value of the object to be compensated according to the supplementary compensation value and the normal compensation value;
    根据所述实际补偿值对所述待补偿对象进行补偿。The object to be compensated is compensated according to the actual compensation value.
  2. 根据权利要求1所述的补偿方法，其中，在获取待补偿对象所在位置，且当所述待补偿对象位于所述第一显示区时，根据补偿位置映射关系确定所述待补偿对象的补充补偿值的步骤中还包括：当所述待补偿对象位于所述第二显示区时，根据所述常态补偿值对所述待补偿对象进行补偿。The compensation method according to claim 1, wherein, in obtaining the position of the object to be compensated, and when the object to be compensated is located in the first display area, the step of determining the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship also includes: when the object to be compensated is located in the second display area, compensating the object to be compensated according to the normal compensation value.
  3. 根据权利要求2所述的补偿方法，其中，当所述待补偿对象位于所述第二显示区时，根据所述常态补偿值对所述待补偿对象进行补偿的步骤包括：当所述待补偿对象位于所述第二显示区时，获取所述待补偿对象的目标灰阶，当所述目标灰阶小于第一灰阶时，根据所述待补偿对象在第一灰阶和0灰阶的补偿值选用线性插值计算法确定所述待补偿对象的实际补偿值。The compensation method according to claim 2, wherein, when the object to be compensated is located in the second display area, the step of compensating the object to be compensated according to the normal compensation value comprises: when the object to be compensated is located in the second display area, obtaining the target grayscale of the object to be compensated, and when the target grayscale is less than the first grayscale, selecting a linear interpolation calculation method according to the compensation values of the object to be compensated at the first grayscale and 0 grayscale to determine the actual compensation value of the object to be compensated.
  4. 根据权利要求3所述的补偿方法，其中，当所述待补偿对象位于所述第二显示区时，根据所述常态补偿值对所述待补偿对象进行补偿的步骤中还包括：当所述目标灰阶大于或等于所述第一灰阶时，根据所述常态补偿值对所述待补偿对象进行补偿。The compensation method according to claim 3, wherein, when the object to be compensated is located in the second display area, the step of compensating the object to be compensated according to the normal compensation value further comprises: when the target grayscale is greater than or equal to the first grayscale, compensating the object to be compensated according to the normal compensation value.
  5. 根据权利要求1所述的补偿方法，其中，The compensation method according to claim 1, wherein:
    在获取待补偿对象所在位置，且当所述待补偿对象位于所述第一显示区时，根据补偿位置映射关系确定所述待补偿对象的补充补偿值的步骤中：获取所述待补偿对象所在位置和目标灰阶，当所述待补偿对象位于所述第 一显示区，且所述目标灰阶小于所述第一灰阶时，根据补偿位置映射关系确定所述待补偿对象的补充补偿值；In the step of obtaining the position of the object to be compensated, and when the object to be compensated is located in the first display area, determining the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship: obtaining the position of the object to be compensated and the target grayscale, and when the object to be compensated is located in the first display area, a display area, and when the target grayscale is less than the first grayscale, determining a supplementary compensation value of the object to be compensated according to a compensation position mapping relationship;
    在根据所述补充补偿值和所述常态补偿值确定所述待补偿对象的实际补偿值的步骤中：根据所述补充补偿值和所述常态补偿值确定所述待补偿对象在所述目标灰阶下的实际补偿值。In the step of determining the actual compensation value of the object to be compensated according to the supplementary compensation value and the normal compensation value: determining the actual compensation value of the object to be compensated at the target grayscale according to the supplementary compensation value and the normal compensation value.
  6. 根据权利要求5所述的补偿方法，其中，在获取待补偿对象所在位置，且当所述待补偿对象位于所述第一显示区时，根据补偿位置映射关系确定所述待补偿对象的补充补偿值的步骤还包括：当所述目标灰阶大于或等于所述第一灰阶时，根据所述常态补偿值对所述待补偿对象进行补偿。According to the compensation method of claim 5, wherein, when the position of the object to be compensated is obtained and when the object to be compensated is located in the first display area, the step of determining the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship further comprises: when the target grayscale is greater than or equal to the first grayscale, compensating the object to be compensated according to the normal compensation value.
  7. 根据权利要求3所述的补偿方法，其中，The compensation method according to claim 3, wherein:
    在获取所述显示面板在第一灰阶下的常态补偿值的步骤中：In the step of obtaining the normal compensation value of the display panel at the first gray scale:
    获取所述第一显示区在多个第一灰阶下的多个常态补偿值和第二灰阶下的补偿值，多个所述第一灰阶中的最低灰阶a对应的所述常态补偿值为第一补偿值，第二灰阶对应的补偿值为第二补偿值；Acquire a plurality of normal compensation values and a compensation value of a second grayscale of the first display area at a plurality of first grayscales, wherein the normal compensation value corresponding to the lowest grayscale a among the plurality of first grayscales is a first compensation value, and the compensation value corresponding to the second grayscale is a second compensation value;
    根据所述补充补偿值和所述常态补偿值确定所述待补偿对象在所述目标灰阶下的实际补偿值的步骤中：In the step of determining the actual compensation value of the object to be compensated at the target grayscale according to the supplementary compensation value and the normal compensation value:
    根据所述第一补偿值和所述第二补偿值进行线性插值计算确定所述目标灰阶下的模拟补偿值；Determine a simulation compensation value at the target grayscale by performing a linear interpolation calculation according to the first compensation value and the second compensation value;
    根据所述模拟补偿值和所述补充补偿值确定所述待补偿对象在所述目标灰阶下的实际补偿值。An actual compensation value of the object to be compensated at the target grayscale is determined according to the simulated compensation value and the supplementary compensation value.
  8. 根据权利要求7所述的补偿方法，其中，所述第二灰阶为0灰阶。The compensation method according to claim 7, wherein the second grayscale is 0 grayscale.
  9. 根据权利要求7所述的补偿方法，其中，a包括16灰阶、32灰阶、64灰阶和128灰阶中的至少一者。The compensation method according to claim 7, wherein a includes at least one of 16 gray levels, 32 gray levels, 64 gray levels, and 128 gray levels.
  10. 根据权利要求7所述的补偿方法，其中，根据所述第一补偿值和所述第二补偿值进行线性插值计算确定所述目标灰阶下的模拟补偿值的步骤包括：The compensation method according to claim 7, wherein the step of performing linear interpolation calculation to determine the analog compensation value at the target grayscale according to the first compensation value and the second compensation value comprises:
    根据如下公式确定所述模拟补偿值：
    The simulation compensation value is determined according to the following formula:
    其中，h3为模拟补偿值，h1为第一补偿值，h2为0灰阶下的第二补偿 值，k为目标灰阶值，a为所述第一补偿值对应的第一灰阶。Among them, h3 is the simulated compensation value, h1 is the first compensation value, and h2 is the second compensation value at 0 grayscale. value, k is the target grayscale value, and a is the first grayscale corresponding to the first compensation value.
  11. 根据权利要求7所述的补偿方法，其中，当所述待补偿对象位于所述第一显示区，且所述目标灰阶小于所述第一灰阶时，在根据所述补充补偿值和所述模拟补偿值确定所述待补偿对象在所述目标灰阶下的实际补偿值的步骤中：The compensation method according to claim 7, wherein, when the object to be compensated is located in the first display area and the target grayscale is less than the first grayscale, in the step of determining the actual compensation value of the object to be compensated at the target grayscale according to the supplementary compensation value and the simulated compensation value:
    当所述目标灰阶为m时，确定所述待补偿对象的实际补偿值为第一实际补偿值；When the target grayscale is m, determining that the actual compensation value of the object to be compensated is a first actual compensation value;
    当所述目标灰阶为n时，确定所述待补偿对象的实际补偿值为第二实际补偿值，When the target grayscale is n, determining the actual compensation value of the object to be compensated is a second actual compensation value,
    其中，所述第一灰阶＞m＞n，且所述第一实际补偿值小于所述第二实际补偿值。Wherein, the first gray scale>m>n, and the first actual compensation value is smaller than the second actual compensation value.
  12. 根据权利要求3所述的补偿方法，其中，在获取所述待补偿对象所在位置和目标灰阶，当所述待补偿对象位于所述第一显示区，且所述目标灰阶小于所述第一灰阶时，根据补偿位置映射关系确定所述待补偿对象的补充补偿值的步骤之前还包括：The compensation method according to claim 3, wherein, before obtaining the position of the object to be compensated and the target grayscale, when the object to be compensated is located in the first display area and the target grayscale is less than the first grayscale, determining the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship further comprises:
    在显示面板的调试阶段，获取所述第一显示区在所述目标灰阶下的第一显示图像和所述第二显示区在所述目标灰阶下的第二显示图像；In a debugging stage of the display panel, a first display image of the first display area at the target grayscale and a second display image of the second display area at the target grayscale are acquired;
    根据所述第一显示图像和所述第二显示图像确定所述补偿位置映射关系。The compensation position mapping relationship is determined according to the first display image and the second display image.
  13. 根据权利要求12所述的补偿方法，其中，在根据所述第一显示图像和所述第二显示图像确定所述补偿位置映射关系的步骤中：The compensation method according to claim 12, wherein, in the step of determining the compensation position mapping relationship according to the first display image and the second display image:
    根据所述第一显示图像和所述第二显示图像将所述第一显示区划分为多个补偿区；dividing the first display area into a plurality of compensation areas according to the first display image and the second display image;
    根据各所述补偿区的显示图像与所述第二显示图像确定各所述补偿区的所述补偿位置映射关系；Determine the compensation position mapping relationship of each compensation area according to the display image of each compensation area and the second display image;
    在获取所述待补偿对象所在位置和目标灰阶，当所述待补偿对象位于所述第一显示区，且所述目标灰阶小于所述第一灰阶时，根据补偿位置映射关系确定所述待补偿对象的补充补偿值的步骤中：In the step of obtaining the position of the object to be compensated and the target grayscale, when the object to be compensated is located in the first display area and the target grayscale is less than the first grayscale, determining the supplementary compensation value of the object to be compensated according to the compensation position mapping relationship:
    获取所述待补偿对象所在位置和目标灰阶，当所述待补偿对象位于所 述第一显示区，且所述目标灰阶小于所述第一灰阶时，根据所述待补偿对象所在的补偿区和所述补偿位置映射关系确定所述待补偿对象的补充补偿值。Obtain the location and target grayscale of the object to be compensated. When the target grayscale is smaller than the first grayscale, the supplementary compensation value of the object to be compensated is determined according to the mapping relationship between the compensation area where the object to be compensated is located and the compensation position.
  14. 根据权利要求13所述的补偿方法，其中，所述补偿区的个数为多个，至少其中一个所述补偿区环绕另一或另一些所述补偿区的至少部分设置。The compensation method according to claim 13, wherein there are multiple compensation zones, and at least one of the compensation zones is arranged to surround at least part of another or some of the other compensation zones.
  15. 根据权利要求13所述的补偿方法，其中，各所述补偿区包括显示单元，所述显示单元包括第一颜色子像素、第二颜色子像素和第三颜色子像素，在根据各所述补偿区的显示图像与所述第二显示图像确定所述补偿位置映射关系的步骤中：The compensation method according to claim 13, wherein each of the compensation areas comprises a display unit, the display unit comprises a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, and in the step of determining the compensation position mapping relationship according to the display image of each of the compensation areas and the second display image:
    根据所述补偿区的显示图像与所述第二显示图像分别确定所述补偿区的第一颜色子像素、第二颜色子像素和第三颜色子像素的补偿位置映射关系；Determine the compensation position mapping relationship of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel of the compensation area respectively according to the display image of the compensation area and the second display image;
    在获取所述待补偿对象所在位置和目标灰阶，当所述待补偿对象位于所述第一显示区，且所述目标灰阶小于所述第一灰阶时，根据所述待补偿对象所在的补偿区和所述补偿位置映射关系确定所述待补偿对象的补充补偿值的步骤中，还根据所述待补偿对象的颜色和所述补偿位置映射关系确定所述补充补偿值。In the step of obtaining the position of the object to be compensated and the target grayscale, when the object to be compensated is located in the first display area and the target grayscale is less than the first grayscale, determining the supplementary compensation value of the object to be compensated according to the mapping relationship between the compensation area where the object to be compensated is located and the compensation position, the supplementary compensation value is also determined according to the mapping relationship between the color of the object to be compensated and the compensation position.
  16. 根据权利要求15所述的补偿方法，其中，所述补偿区包括两个以上的显示单元，且两个以上的所述显示单元的显示特征信息的差异小于或等于预设值，所述显示特征信息包括显示亮度和/或显示颜色。According to the compensation method of claim 15, wherein the compensation area includes more than two display units, and the difference in display characteristic information of the more than two display units is less than or equal to a preset value, and the display characteristic information includes display brightness and/or display color.
  17. 一种补偿装置，所述补偿装置用于显示面板，所述显示面板第一显示区和第二显示区，所述第一显示区的透光率大于所述第二显示区的透光率，所述补偿装置包括：A compensation device is used for a display panel, the display panel has a first display area and a second display area, the transmittance of the first display area is greater than the transmittance of the second display area, and the compensation device comprises:
    存储模块，用于存储多个第一灰阶下的多个常态补偿值；A storage module, used for storing a plurality of normal compensation values under a plurality of first gray scales;
    定位模块，用于确定待补偿对象的所在位置；A positioning module, used to determine the location of the object to be compensated;
    补偿计算模块，用于当所述待补偿对象位于所述第一显示区时，根据补偿位置映射关系获取所述待补偿对象的补充补偿值，并根据所述补充补偿值和所述常态补偿值确定所述待补偿对象在目标灰阶下的实际补偿值； a compensation calculation module, configured to obtain a supplementary compensation value of the object to be compensated according to a compensation position mapping relationship when the object to be compensated is located in the first display area, and determine an actual compensation value of the object to be compensated at a target grayscale according to the supplementary compensation value and the normal compensation value;
    补偿模块，用于根据所述实际补偿值对所述待补偿对象进行补偿。A compensation module is used to compensate the object to be compensated according to the actual compensation value.
  18. 一种显示装置，包括权利要求17所述的补偿装置。 A display device comprising the compensation device according to claim 17.
PCT/CN2023/101940 2022-12-14 2023-06-21 Compensation method and compensation apparatus for display panel, and display apparatus WO2024124849A1 (en)

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