CN115497428B - Brightness compensation method, readable storage medium, and display device - Google Patents
Brightness compensation method, readable storage medium, and display device Download PDFInfo
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- CN115497428B CN115497428B CN202210985230.2A CN202210985230A CN115497428B CN 115497428 B CN115497428 B CN 115497428B CN 202210985230 A CN202210985230 A CN 202210985230A CN 115497428 B CN115497428 B CN 115497428B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
Abstract
The application provides a brightness compensation method, a readable storage medium and a display device, wherein a plurality of sub-pixels in a display panel are divided into at least two types according to the difference of feed-through voltages, the sub-pixels of the same type have the same feed-through voltage, the positive polarity data value and the negative polarity data value of the sub-pixels of different types are respectively compensated, the data voltage is generated based on the compensated output data value, and the data voltage is output to the sub-pixels, so that the actual data voltages applied to the pixel electrodes corresponding to the sub-pixels of different types are equal, the positive and negative frame brightness of the sub-pixels of different types are equal, and the problem of the shaking of the display panel is further improved.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a brightness compensation method, a readable storage medium, and a display device.
Background
With the progress of technology, liquid crystal display panels have been widely used in various fields, particularly in various electronic products due to their light and thin shapes, low power consumption, and no radiation. With the increase of resolution and resolution, the number of data lines in the lcd panel is increased proportionally, so that the number of source driver chips providing data signals is increased exponentially, resulting in an increase of production cost. For this, a driving manner of a two-line scan (DSL) is often adopted to reduce the number of data lines.
Because of the feed-through voltage in the pixel circuit, the feed-through voltages of the different types of sub-pixels are different, so that the brightness of positive and negative frames of the different types of sub-pixels is different and is regularly distributed, when a liquid crystal display panel displays a dynamic picture or human eyes shake according to a certain frequency, the human eyes can capture the display picture with obvious bright and dark lines, namely the phenomenon of shaking head.
In summary, the conventional display panel has the problem of the occurrence of the panning due to the difference of the brightness of the positive and negative frames of the sub-pixels. Therefore, it is necessary to provide a brightness compensation method, a readable storage medium and a display device to improve the defect.
Disclosure of Invention
The embodiment of the application provides a brightness compensation method, a readable storage medium and a display device, which can realize equal positive and negative frame brightness of sub-pixels, thereby solving the problem of shaking marks.
The embodiment of the application provides a brightness compensation method for compensating positive and negative frame brightness of a plurality of sub-pixels of a display panel, dividing the plurality of sub-pixels into at least two types according to difference of feed-through voltages, wherein the sub-pixels of the same type have the same feed-through voltage, and the brightness compensation method comprises the following steps:
Acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel;
determining a data compensation value of the current sub-pixel frame according to the type of the sub-pixel and the polarity of the current sub-pixel frame;
according to the data compensation value of the current sub-pixel frame, compensating the initial data value of the current sub-pixel frame to obtain a compensated output data value;
and generating a data voltage based on the output data value of the current frame of the sub-pixel, and outputting the data voltage to the sub-pixel so as to display the current frame of the sub-pixel.
According to an embodiment of the present application, the initial data values include positive polarity initial data values and negative polarity initial data values, and the data compensation values include positive polarity data compensation values and negative polarity data compensation values;
when the polarity of the current sub-pixel frame is positive, compensating the positive initial data value of the current sub-pixel frame according to the positive data compensation value of the current sub-pixel frame to obtain a compensated positive output data value;
and when the polarity of the current sub-pixel frame is negative, compensating the negative initial data value of the current sub-pixel frame according to the negative data compensation value of the current sub-pixel frame to obtain a compensated negative output data value.
According to an embodiment of the present application, the step of obtaining the type of the sub-pixel and the polarity of the current frame of the sub-pixel includes:
determining the type of the sub-pixel according to the position information of the sub-pixel and a preset sub-pixel type mapping table;
and determining the polarity of the current frame of the sub-pixel according to the position information of the sub-pixel and a preset polarity mapping table.
According to an embodiment of the present application, a display area of the display panel has a plurality of reference areas distributed at intervals, each reference area has a corresponding preset data compensation lookup table, and the step of determining the data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel includes:
acquiring resolution information of the display panel;
determining the spatial position of the pixel unit where the sub-pixel is located in the display area according to the position information of the pixel unit where the sub-pixel is located and the resolution information of the display panel;
obtaining interpolation information of the display panel;
and determining the data compensation lookup table referenced by the sub-pixel according to the interpolation information and the spatial position of the pixel unit where the sub-pixel is located in the display area.
According to an embodiment of the present application, the step of determining the data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel further includes:
and determining a sub-data compensation lookup table corresponding to the type of the sub-pixel in the data compensation lookup table referenced by the sub-pixel according to the type of the sub-pixel.
According to an embodiment of the present application, the step of determining the data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel further includes:
if the sub-pixel is located in the reference area, acquiring a corresponding data compensation value from the referenced sub-data compensation lookup table according to the polarity of the current frame of the sub-pixel and the initial data value of the current frame of the sub-pixel;
if the sub-pixel is located outside the reference area, calculating the data compensation value of the current sub-pixel frame by adopting an interpolation algorithm according to the sub-data compensation lookup table referenced by the sub-pixel, the polarity of the current sub-pixel frame and the initial data value of the current sub-pixel frame.
According to an embodiment of the present application, before acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel, the luminance compensation method further includes:
inputting the type of each sub-pixel and the polarity of each sub-pixel;
storing the position information of each sub-pixel and the type of the sub-pixel corresponding to the position information in the form of establishing the sub-pixel type mapping table;
and storing the position information of each sub-pixel and the polarity of each corresponding sub-pixel in each frame in a mode of establishing the polarity mapping table.
According to an embodiment of the present application, before acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel, the luminance compensation method further includes:
inputting positive polarity data values and positive polarity data compensation values and negative polarity data compensation values corresponding to each type of the sub-pixels in the reference region;
and storing positive polarity data values and negative polarity data compensation values corresponding to the positive polarity data values and the negative polarity data values of each type of the sub-pixels in the reference area into the sub-data compensation lookup table corresponding to the sub-pixel type in the data compensation lookup table in a mode of establishing the data compensation lookup table.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements the steps of the brightness compensation method as described above.
The embodiment of the application also provides a display device, which comprises a display panel, a processor and a readable storage medium, wherein the processor is used for executing programs or instructions to realize the steps of the brightness compensation method of the display panel.
The embodiment of the application has the beneficial effects that: the embodiment of the application provides a brightness compensation method, a readable storage medium and a display device, wherein a plurality of sub-pixels are divided into at least two types according to the difference of feed-through voltages, the sub-pixels of the same type have the same feed-through voltage, the positive polarity data value and the negative polarity data value of the sub-pixels of different types are respectively compensated, the data voltage is generated based on the compensated output data value, and the data voltage is output to the sub-pixels, so that the actual data voltages applied to the pixel electrodes corresponding to the sub-pixels of different types are equal, the positive and negative frame brightness of the sub-pixels of different types are equal, and the problem of the shaking of a display panel is further improved.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are required to be used in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a related art dual line scan 2flip (DLS 2 flip) display panel;
FIG. 2 is a schematic diagram of the effect of feed-through voltage on data voltage;
FIG. 3 is a diagram showing the distribution of different types of subpixels in a display panel with a DLS 2flip architecture;
fig. 4 is a flowchart of a brightness compensation method according to an embodiment of the present application;
FIG. 5 is a specific step diagram of a brightness compensation method according to an embodiment of the present application;
FIG. 6 is a smile graph provided by an embodiment of the present application;
fig. 7 is a schematic diagram of a display device according to an embodiment of the present application;
fig. 8 is a schematic diagram of a brightness compensator according to an embodiment of the application.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. The directional terms mentioned in the present application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., are only referring to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the application and is not limiting of the application. In the drawings, like elements are designated by like reference numerals.
The application will be further described with reference to the accompanying drawings and specific examples.
One of the main reasons for the difference between the positive and negative frame brightness of different sub-pixels in the existing display panel is: the pixels have feed-through voltages, and when the feed-through voltages of different sub-pixels are different, the sub-pixels cannot share the same optimal common voltage applied to the common electrode.
Taking the display panel of the dual line scan 2flip (dls 2 flip) architecture as shown in fig. 1 as an example, each row of sub-pixels is repeatedly arranged in RGB, and each sub-pixel is electrically connected to a corresponding scan line and data line through a transistor (not shown). Each sub-pixel includes a pixel electrode 10, and the gate of the transistor is electrically connected to the scan line. The drain of the transistor is electrically connected to the data line, and the source of the transistor is electrically connected to the pixel electrode 10.
The feed-through voltage of the first feed-through (1 stfeedthru) effect is positively correlated with the gate-source capacitance Cgs of the subpixel: the gate-source capacitance Ggs is a capacitance between the gate and the source, vft-Voff/Ctotal, where Von is a gate on voltage and Voff is a gate off voltage. For the larger area of overlap of the gates of sub-pixels B and D with the pixel electrode 10 in fig. 1 (as indicated by the dashed box at Vft 1 in fig. 1), the smaller area of overlap of the gates of sub-pixels a and C with the pixel electrode 10, and thus the feedthrough voltages of sub-pixels B and D are greater than those of sub-pixels a and C at the time of the first feedthrough effect.
Some sub-pixels may have a 2nd feed through effect. Since the scan lines are turned on row by row, the first row scan line Gate1 above the sub-pixel a turns on the sub-pixel A, D connected thereto, and then the second row scan line Gate2 below the sub-pixel a turns on the sub-pixel B, C connected thereto. At this time, the second row scan line Gate2 has a larger coupling capacitance Cpg to the pixel electrode 10 of the sub-pixel A, D opened via the first row scan line Gate1, and the third row scan line Gate3 has a smaller coupling capacitance Cpg to the sub-pixel B, C opened via the second row scan line Gate2 due to a longer distance, which is negligible.
The feedthrough voltage of the secondary feedthrough is also divided into two parts due to the different length and shape of the metal line of the second line Gate2, and the pixel electrode 10 of the sub-pixel a and the second line Gate2 have smaller laterally overlapping area, and the pixel electrode 10 of the sub-pixel D and the second line Gate2 have larger laterally overlapping area (as shown by the dashed line box at 2 Vft in fig. 1), so that the feedthrough voltage of the secondary feedthrough effect of the sub-pixel D is larger than the feedthrough voltage of the secondary feedthrough effect of the sub-pixel a.
Thus, in conjunction with the display panel of the DLS 2flip architecture shown in table 1, there are four sub-pixels with feed-through voltages, where Near means that the sub-pixel is closer to the data line and Far means that the sub-pixel is farther from the data line.
TABLE 1
As shown in fig. 2, the positive polarity data voltage vdata+ and the negative polarity data voltage Vdata-corresponding to the same data value should be symmetrical with respect to the common voltage Vcom.
The actual data voltage applied to the pixel electrode may have a lower potential than the data voltage outputted from the source driving circuit due to the influence of the feed-through voltage, and the luminance of different sub-pixels may vary due to the difference in the feed-through voltage Vft of different sub-pixels, although the data voltages outputted from the source driving circuit are uniform, the actual data voltage finally applied to the pixel electrode is also non-uniform.
As shown in fig. 2, for the sub-pixel having positive polarity, the larger the feed-through voltage Vft, the smaller the actual positive polarity data voltage vpixel+ applied to the pixel electrode, the smaller the voltage difference between the actual positive polarity data voltage vpixel+ and the common electrode, and the darker the sub-pixel. Whereas for the negative sub-pixel, the larger the feed-through voltage Vft, the smaller the actual negative polarity data voltage Vdata-applied to the pixel electrode, the larger the voltage difference between the actual negative polarity data voltage Vdata-and the common electrode, the brighter the sub-pixel.
Through the above analysis, the distribution diagram of different types of sub-pixels in the DLS 2flip architecture display panel shown in fig. 3 can be obtained, where "+" in fig. 3 indicates that the current frame of the sub-pixel is positive, "-" indicates that the current frame of the sub-pixel is negative, and the type of the pixel a is set to N2 (or 1) st +2 nd N), the type of pixel B is F (or 1 st F) The type of pixel C is N (or 1 st N), the type of pixel D is F2 (or 1 st +2 nd F) A. The application relates to a method for producing a fibre-reinforced plastic composite When the instantaneous speed of shaking head is just consistent with the frame switching, the odd columns and even columns are seen to be bright, and the human eyes show obvious bright and dark lines, namely the phenomenon of shaking head.
The embodiment of the application provides a brightness compensation method, which divides a plurality of sub-pixels into at least two types, wherein the sub-pixels of the same type have the same feed-through voltage, respectively compensates positive polarity data values and negative polarity data values of the sub-pixels of different types, generates data voltages based on the compensated output data values, and outputs the data voltages to the sub-pixels, so that the actual data voltages applied to the pixel electrodes corresponding to the sub-pixels of different types are equal, the positive and negative frame brightness of the sub-pixels of different types are equal, and the problem of the shaking of a display panel is further improved.
The display panel includes a plurality of sub-pixels, which are divided into at least two types according to differences in feedthrough voltages.
In the embodiment of the present application, taking the display panel with DLS 2flip architecture shown in fig. 1 as an example, as described above, according to the difference of the feed-through voltages of the sub-pixels in the display panel, the sub-pixels in the display panel are divided into four types, respectively: n2 (or 1) st +2 nd N), F (or 1 st F) N (or 1) st N), F2 (or 1 st +2 nd F)。
Referring to fig. 1 and 3, 6 sub-pixels sequentially arranged from left to right in the first row and 6 sub-pixels sequentially arranged from left to right in the second row form a minimum repeating unit in the display panel, in fig. 3, only the types of partial sub-pixels in the display area are illustrated, and other types of sub-pixels not shown may be deduced according to the arrangement manner of the minimum repeating unit, which is not described herein.
As shown in fig. 4, fig. 4 is a flowchart of a brightness compensation method according to an embodiment of the present application, where the brightness compensation method includes:
step S10: and acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel.
In the step S10, the step of obtaining the type of the sub-pixel and the polarity of the current frame of the sub-pixel includes: acquiring the position information of the sub-pixels; determining the type of the sub-pixel according to the position information of the sub-pixel and a preset sub-pixel type mapping table; and determining the polarity of the current frame of the sub-pixel according to the position information of the sub-pixel and a preset polarity mapping table of the sub-pixel.
In the sub-pixel type mapping table, the position information of each sub-pixel has a corresponding sub-pixel type. The position information of the sub-pixel may refer to coordinates of the sub-pixel, and an abscissa and an ordinate of the sub-pixel may be used as index values of the sub-pixel, and the type of the sub-pixel may be determined according to a mapping relationship between the coordinates of the sub-pixel and the type of the sub-pixel in the sub-pixel type mapping table. The coordinates of the sub-pixels may be determined according to the resolution of the display panel.
Taking the display panel with the DLS 2flip architecture shown in fig. 1 as an example, if the resolution of the display panel is 1920×1080, the display panel contains 1920×1080 pixel units, each pixel unit includes three RGB sub-pixels in the lateral direction, and the display panel contains 1920×1080×3 sub-pixels, and the coordinates of the sub-pixels in the display panel surface may be (1, 1), (1, 2) … … (5760,1080).
Taking the display panel of the DLS 2flip architecture shown in fig. 1 as an example, in conjunction with fig. 3, a horizontal direction to the right is taken as a horizontal direction of an abscissa, a vertical direction to the bottom is taken as a vertical direction, assuming that the coordinates of the first sub-pixel in the upper left corner are (1, 1), and when the coordinates of the sub-pixel are (1, 1), the type of the sub-pixel is N; when the coordinates of the sub-pixel are (1, 2), the type of the sub-pixel is F2, and the other sub-pixels are similar, and will not be described here.
In the polarity mapping table, the position information of each sub-pixel has the progress of the corresponding sub-pixel type in each frame. The position information of the sub-pixel may refer to coordinates of the sub-pixel, and a horizontal direction and a vertical direction of the sub-pixel may be used as index values of the sub-pixel, and according to a polarity mapping relationship between the coordinates of the sub-pixel and each frame of the sub-pixel in the polarity mapping table, a polarity of a current frame of the sub-pixel may be determined, where each sub-pixel switches between a positive polarity and a negative polarity in each frame.
Taking the display panel of the DLS 2flip architecture shown in fig. 1 as an example, referring to fig. 3, when the coordinates of the sub-pixel are (1, 1), the polarity of the current frame of the sub-pixel is positive (+); when the coordinates of the sub-pixel are (1, 3), the polarity of the current frame of the sub-pixel is negative (-).
Further, before acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel, the brightness compensation method further includes: inputting the type of each sub-pixel and the polarity of each sub-pixel; storing the position information of each sub-pixel and the type of the sub-pixel corresponding to the position information in the form of establishing the sub-pixel type mapping table; and storing the position information of each sub-pixel and the polarity of each corresponding sub-pixel in each frame in a mode of establishing the polarity mapping table.
Before executing step S10, the type of each sub-pixel and the polarity of each sub-pixel are input. Storing the coordinates of each sub-pixel and the type of the sub-pixel corresponding to the coordinates into a sub-pixel type mapping table through a pre-established sub-pixel type mapping table, and establishing a mapping relation between the coordinates of the sub-pixels and the type of the sub-pixels.
When the sub-pixel type mapping table is established, the feed-through voltage type of each sub-pixel in the display panel can be determined according to the architecture type of the display panel, then the coordinates of each sub-pixel and the feed-through voltage type are input into a corresponding first mapping module in an external input mode, and a mapping relation between the coordinates of each sub-pixel and the feed-through voltage type of the sub-pixel is established, so that the sub-pixel type mapping table is obtained. The sub-pixels in the display panel are often repeatedly arranged in the form of repeating units, and only the feed-through voltage type of each sub-pixel in one of the repeating units is required to be input, and the feed-through voltage types of each sub-pixel in other repeating units can be copied according to the feed-through voltage types of each sub-pixel in the repeating unit. Taking the display panel of the DLS2flip architecture shown in fig. 1 as an example, as described above, the display panel of the DLS2flip architecture has four sub-pixels with feed-through voltage types, N2 (or 1 st +2 nd N), F (or 1 st F) N (or 1) st N), F2 (or 1 st +2 nd F) The sub-pixels in each repeating unit may be arranged laterally in the order of the types N, F, N, F, N2, F; alternatively, the sub-pixels may be arranged laterally in the order of F, N, F2, N, F2, N, and a plurality of the repeating units may be disposed in each row.
Referring to fig. 3, the horizontal direction is the horizontal direction of the abscissa, the vertical direction is the vertical direction, and the coordinates of the first sub-pixel in the first row are (1, 1), and the type of the feed-through voltage is N; the coordinates of the second sub-pixel of the first row are (1, 2), and the type of feed-through voltage is F2; the coordinates of the third sub-pixel in the first row are (1, 3), the type of the feed-through voltage is N, and so on, the feed-through voltage types of the other coordinate sub-pixels in the display panel of the DLS 2flip architecture can be deduced according to the arrangement modes of the sub-pixels with different feed-through voltage types in fig. 3, and details are not repeated here.
And storing the coordinates of each sub-pixel and the polarities of the sub-pixels corresponding to the coordinates in each frame into a polarity mapping table through a pre-established polarity mapping table, and establishing a mapping relation between the coordinates of the sub-pixels and the polarities of the sub-pixels in each frame.
When the polarity mapping table is established, according to the architecture type, polarity inversion mode and polarity of partial sub-pixels in the first frame of the display panel, the polarity of each sub-pixel in the first frame of the display panel can be determined, then the coordinates of each sub-pixel and the polarity in the first frame are input and stored in a corresponding second mapping module in an external input mode, so that the polarity mapping table is obtained, the sub-pixels can switch positive polarity and negative polarity in each frame, and the polarity of each sub-pixel in the display panel in the current frame can be deduced according to the polarity of the first frame.
Taking the display panel of the DLS 2flip architecture shown in fig. 1 as an example, in combination with the fig. 3, the polarity inversion mode of the sub-pixels in the display panel is two-dot inversion, and the polarities of two adjacent sub-pixels in the lateral direction are the same in each frame, for example, the sub-pixels with coordinates (1, 1) and (1, 2) have positive polarity (+) in the polarity of the current frame and negative polarity (-) in the polarity of the next frame; the polarities of the sub-pixels with coordinates (1, 3) and (1, 4) in the current frame are negative (-) and the polarity of the next frame is positive (+), so that the polarities of the sub-pixels with other coordinates in each frame can be deduced according to the polarities of the sub-pixels shown in fig. 3, and the details are omitted here.
Referring to fig. 3, 6 sub-pixels sequentially arranged from left to right in the first row and 6 sub-pixels sequentially arranged from left to right in the second row form a minimum repeating unit in the display panel, and when the sub-pixel type mapping table and the polarity mapping table are established, the mapping relationship between coordinates and types or polarities of the sub-pixels in other parts may refer to the minimum repeating unit, which is not described herein.
Step S20: and determining a data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel.
The step of determining the data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel comprises the following steps:
acquiring resolution information of the display panel; determining the spatial position of the pixel unit where the sub-pixel is located in the display area according to the position information of the pixel unit where the sub-pixel is located and the resolution information of the display panel; obtaining interpolation information of the display panel; and determining the data compensation lookup table referenced by the sub-pixel according to the interpolation information and the spatial position of the pixel unit where the sub-pixel is located in the display area.
The resolution information of the display panel includes how many pixel units, how many sub-pixels, and positional information of each of the pixel units and sub-pixels are included in the display panel.
In the embodiment of the present application, the coordinates of the pixel unit and the coordinates of the sub-pixels may adopt different calculation manners, taking the display panel of the DLS 2flip architecture shown in fig. 1 as an example, the coordinates of the pixel unit are set to be (i, j), and when the resolution of the display panel is 1920×1080, the coordinates of the pixel unit may be (1, 1), (1, 2) … … (1920,1080); the coordinates of the first sub-pixel in each pixel unit are (xx, yy), where xx=3 (i-1) +1, yy=1, and the coordinates of the sub-pixels may be (1, 1), (1, 2) … … (5760,1080).
The display area of the display panel is internally provided with a plurality of reference areas which are distributed at intervals, and the spatial position of the pixel unit where the sub-pixel is located in the display area can be determined according to the coordinates (i, j) of the pixel unit where the sub-pixel is located.
In the embodiment of the application, a plurality of reference areas which are distributed at intervals are arranged in the display area of the display panel, and each reference area is provided with a corresponding preset data compensation lookup table.
The interpolation information of the display panel records the reference relation between the sub-pixels at different spatial positions and the data compensation lookup table, and the data compensation value lookup table referenced by the sub-pixels can be determined according to the spatial positions of the pixel units where the sub-pixels are located in the display area and the interpolation information of the display panel.
The sub-pixels have an initial data value having a positive polarity and a negative polarity, and the corresponding initial positive polarity data value has a positive polarity compensation data value corresponding thereto, and the initial negative polarity data value has a negative polarity data compensation value corresponding thereto.
The step of determining the data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel further comprises:
And determining a sub-data compensation lookup table corresponding to the type of the sub-pixel in the data compensation lookup table referenced by the sub-pixel according to the type of the sub-pixel.
Each type of sub-pixel has a sub-data compensation lookup table corresponding to the type thereof in the data compensation lookup table, and the sub-data compensation lookup table stores initial positive polarity data to corresponding positive polarity data compensation values and initial negative polarity data to corresponding negative polarity data compensation values of the sub-pixel of the corresponding type.
According to the type of the sub-pixel and the polarity of the current frame of the sub-pixel, a data compensation value corresponding to the current frame of the sub-pixel can be obtained in the referenced sub-data compensation lookup table.
Taking a sub-pixel in any reference area as an example, setting the type of the sub-pixel as N, setting the polarity of the current frame of the sub-pixel as positive polarity, setting the initial data value of the sub-pixel as 32, and determining a sub-data compensation lookup table referring to the corresponding pixel type as N from the corresponding data compensation lookup table according to the type of the sub-pixel as N; according to the polarity of the current frame of the sub-pixel is positive, a plurality of positive polarity data compensation values corresponding to the positive polarity initial data values can be determined; the data compensation value of the current frame of the sub-pixel may be determined based on the initial data value of the current frame of the sub-pixel being 32.
Before acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel, the brightness compensation method further includes:
inputting positive polarity data values and positive polarity data compensation values and negative polarity data compensation values corresponding to each type of the sub-pixels in the reference region; and storing the type of each sub-pixel in the reference area, the positive polarity data value of each type of sub-pixel and the positive polarity data compensation value corresponding to the sub-pixel, and the negative polarity data value and the negative polarity data compensation value corresponding to the sub-pixel in the data compensation lookup table in the form of establishing the data compensation lookup table.
For the sub-pixels in the reference region, the corresponding data compensation values may be obtained in the referenced sub-data compensation look-up table according to the polarity of the current frame of sub-pixels and the initial data value of the current frame of sub-pixels.
In one embodiment, only a portion of the representative data is stored in the sub-data compensation look-up table to the corresponding data compensation value. For example, in the sub-data compensation lookup table, only the data compensation values corresponding to the data values of 0, 32, 64, 128, etc. may be stored, and the data compensation values corresponding to the other data values may be calculated by an interpolation algorithm to obtain the corresponding data compensation values, so that multi-gray-scale compensation may be implemented. The interpolation algorithm may include, but is not limited to, a two-dimensional linear interpolation algorithm.
For the sub-pixels outside the reference area, an interpolation algorithm may be used to calculate the data compensation value of the current sub-pixel frame according to the sub-data compensation lookup table referenced by the sub-pixels, the polarity of the current sub-pixel frame, and the initial data value of the current sub-pixel frame.
Step S30: and compensating the initial data value of the current sub-pixel frame according to the data compensation value of the current sub-pixel frame to obtain a compensated output data value.
And when the polarity of the current sub-pixel frame is positive, compensating the positive initial data value of the current sub-pixel frame according to the positive data compensation value of the current sub-pixel frame, namely adding the positive initial data value and the corresponding positive data compensation value to obtain a compensated positive output data value.
And when the polarity of the current sub-pixel frame is negative, compensating the negative initial data value of the current sub-pixel frame according to the negative data compensation value of the current sub-pixel frame, namely adding the negative initial data value and the corresponding negative data compensation value to obtain a compensated negative output data value.
Step S40: and generating a data voltage based on the output data value of the current frame of the sub-pixel, and outputting the data voltage to the sub-pixel so as to display the current frame of the sub-pixel.
Referring to fig. 1 and 3, taking the display panel with the DLS 2flip architecture shown in fig. 1 as an example, a green sub-pixel with the type of F2 in the reference area is selected as a reference sub-pixel, the initial data value of the reference sub-pixel is set to 128, the initial data value of the reference sub-pixel is kept to 128, the common voltage (CFcom) applied to the common electrode is initially set to 5.5V, as shown in a smile graph in fig. 6, the brightness of a positive frame of the reference sub-pixel is proportional to a, the brightness of a negative frame is proportional to d, and the positive frame and the negative frame of the reference sub-pixel are symmetrical.
The positive polarity data value and the negative polarity data value of the N2 type sub-pixel are debugged, and the flicker value in the reference region is measured. The luminance ratio of the N2 type sub-pixel at the positive frame is c, c= -Vpixel (pos) -CFcom, the luminance of the negative frame is proportional to d, d= -Vpixel (neg) -CFcom, and the flicker value flic= (c-d)/(c+d) for the N2 type sub-pixel, where Vpixel (pos) is the actual positive polarity data voltage applied to the pixel electrode and Vpixel (neg) is the actual negative polarity data voltage applied to the pixel electrode.
The positive polarity data value of the N2 type sub-pixel is reduced, the negative polarity data value is increased, the actual data voltage applied to the pixel electrode is increased, the flicker value Flic of the N2 type sub-pixel in the reference area is minimized, at this time, a=c, b=d, the positive frame luminance of the N2 type sub-pixel is considered to be close to or even equal to the positive frame luminance of the F2 type sub-pixel, and the negative frame luminance of the N type sub-pixel is considered to be close to or even equal to the negative frame luminance of the F2 type sub-pixel. Thus, the optimal positive polarity data compensation value and negative polarity data compensation value of the N2 type sub-pixel in the reference area can be obtained, wherein the positive polarity data compensation value of the N2 type sub-pixel is the difference value between the positive polarity data value after debugging and the positive polarity data value before debugging, and the negative polarity data compensation value is the difference value between the negative polarity data value after debugging and the negative polarity data value before debugging. The adjustment manner of the N, F type sub-pixel may refer to the adjustment manner of the N2 type sub-pixel, which is not described herein.
After the debugging is completed, the positive polarity data compensation value and the negative polarity data compensation value of each type of sub-pixel in the reference area obtained by the debugging are stored in the corresponding data compensation lookup table, and when the steps of the brightness compensation method provided by the embodiment are implemented during execution, the corresponding data compensation value can be obtained according to the data compensation lookup table.
Since the display panel has the problem of uneven display brightness in the plane, the difference of the brightness between the reference areas can be reduced by setting a plurality of reference areas and debugging the data compensation value of each type of sub-pixel in each reference area, so that the problem of uneven brightness of the display panel can be improved.
As shown in fig. 5, fig. 5 is a specific step diagram of a brightness compensation method according to an embodiment of the present application, where the brightness compensation method specifically includes the following steps:
first, mapping information of the sub-pixel type, mapping information of each frame polarity of the sub-pixel, data compensation value information of the sub-pixel, resolution information of the display panel, and interpolation information of the display panel are input.
When the mapping information of the sub-pixel type is input, the coordinates and the type of the sub-pixel can be stored in a sub-pixel type mapping table, and a mapping relation between the coordinates and the type of the sub-pixel is established.
Next, a loop sentence shown in the block diagram of fig. 5 is executed, and starting from the first pixel unit of the first row and the first column, all the sub-pixels in the display panel are subjected to progressive scan compensation.
And then, determining the spatial position of the sub-pixel in the display panel according to the coordinates (i, j) of the pixel unit in which the sub-pixel is positioned, and determining a referenced data compensation lookup table according to the spatial position of the sub-pixel in the display panel.
Further, the type of the sub-pixel is determined according to the coordinates (xx, yy) of the sub-pixel, and a sub-data compensation lookup table in the referenced data compensation lookup table is determined according to the type of the sub-pixel.
Further, according to the sub-data compensation lookup table referenced by the sub-pixel, determining a data compensation value of the current frame of the sub-pixel, and performing assignment calculation on the initial data value of the current frame of the sub-pixel to obtain a compensated output data value.
Finally, judging whether the ordinate j of the pixel unit where the current compensated sub-pixel is located and the ordinate yy of the sub-pixel are equal to the total number of lines of the pixel unit in the display panel; judging whether the abscissa i of the pixel unit where the currently compensated sub-pixel is located is equal to the total column number of the pixel unit in the display panel; it is determined whether the abscissa xx of the currently compensated subpixel is equal to 3i.
If at least one of the conditions is not met, continuing to execute the loop sentence, and compensating the data values of other sub-pixels; if the above conditions are all compounded, the compensation of the current frame is ended.
According to the specific steps of the above-mentioned brightness adjustment method provided by the embodiment of the present application, brightness compensation is performed on four types of sub-pixels with an initial data value of 128, wherein a green sub-pixel with a type of F2 is used as a reference sub-pixel, and the result is shown in table 2:
TABLE 2
As can be seen from table 2, the initial data values of the sub-pixels of the various types are the same, and since the feed-through voltages of the sub-pixels of the various types are different, the data compensation values corresponding to the sub-pixels of the various types are different, and the output data values after the debug compensation are different, but the brightness of the positive frame of the sub-pixels of the various types is equal, the brightness of the negative frame of the sub-pixels of the various types is equal, and the brightness of the positive and negative frames of the sub-pixels of the same type is also the same, so that the positive and negative frame brightness of the sub-pixels of different feed-through voltages can be made to be close, and the problem of the shaking of the display panel can be improved.
It should be noted that, the brightness compensation method provided by the embodiment of the present application is not limited to the display panel with the DLS 2flip architecture described in the above embodiment, but may be applied to other display panels with the shaking phenomenon caused by the difference of feed-through voltages between the sub-pixels due to the architecture.
According to the brightness compensation method provided by the above embodiment, the embodiment of the present application further provides a readable storage medium, which may be used to store a program or instructions that when executed by a processor implement the steps of the brightness compensation method provided by the above embodiment.
For example, the program may perform the steps of: acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel; determining a data compensation value of the current sub-pixel frame according to the type of the sub-pixel and the polarity of the current sub-pixel frame; according to the data compensation value of the current sub-pixel frame, compensating the initial data value of the current sub-pixel frame to obtain a compensated output data value; and generating a data voltage based on the output data value of the current frame of the sub-pixel, and outputting the data voltage to the sub-pixel so as to display the current frame of the sub-pixel.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein. Wherein the storage medium may include: read Only Memory (ROM), random access memory (random access memory, RAM), magnetic or optical disk, and the like.
According to the luminance compensation method provided by the above embodiment, the embodiment of the present application further provides a display device, as shown in fig. 7, where the display device 100 includes a display panel 101, a processor 102, and a readable storage medium provided by the above embodiment, where the readable storage medium is a memory 103 shown in fig. 7, and the memory 103 may be used to store a program or instructions, and the processor 102 may be used to execute the program or instructions to implement the steps of the luminance compensation method for a display panel provided by the above embodiment.
The processor 102 is electrically connected to the memory 103. The processor 102 is a control center of the display apparatus 100, connects respective parts of the entire terminal using various interfaces and lines, and performs various functions of the display apparatus and processes data by running or calling a computer program stored in the memory 103 and calling data stored in the memory 103, thereby controlling the display.
Further, the display device may further include a brightness compensator, as shown in fig. 8, which may include:
a first mapping module 11, configured to store location information of each sub-pixel and a type of the sub-pixel corresponding to the location information in a form of creating the sub-pixel type mapping table;
A second mapping module 12, configured to store, in a form of establishing the polarity mapping table, location information of each of the sub-pixels and polarities of the sub-pixels corresponding thereto in each frame;
and the query module 13 is configured to store the type of each sub-pixel in each reference area, the positive polarity data value of each type of sub-pixel and the positive polarity data compensation value corresponding thereto, and the negative polarity data value and the negative polarity data compensation value corresponding thereto in the data compensation lookup table in the form of creating the data compensation lookup table.
In an embodiment of the present application, a display panel of the display device may have a plurality of reference areas distributed at intervals, and each reference area may have a corresponding query module.
For example, the brightness compensator shown in fig. 8 includes a first query module 131 and a second query module 132, the first query module 131 may correspond to a central reference region, and the second query module 132 may correspond to an edge reference region.
The first lookup module 131 is equivalent to a compensation data lookup table, the first lookup module 131 has a first sub-compensation data lookup table LUT1, a second sub-compensation data lookup table LUT2, a third sub-compensation data lookup table LUT3, and a fourth sub-compensation data lookup table LUT4 in the first lookup module 131, the first sub-compensation data lookup table LUT1 stores a data compensation value of an N-type sub-pixel in the central reference area in the positive frame and a data compensation value in the negative frame, the second sub-compensation data lookup table LUT2 stores a data compensation value of an F-type sub-pixel in the positive frame and a data compensation value in the negative frame, the third sub-compensation data lookup table LUT3 stores a data compensation value of an N2-type sub-pixel in the positive frame and a data compensation value in the negative frame, and the fourth sub-compensation data lookup table LUT4 stores a data compensation value of an F2-type sub-pixel in the positive frame and a data compensation value in the negative frame.
The second query module 132 is equivalent to a data compensation table, the second query module 132 has a fifth sub-compensation data query table LUT5, a sixth sub-compensation data query table LUT6, a seventh sub-compensation data query table LUT7, and an eighth sub-compensation data query table LUT8 in the second query module 132, the fifth sub-compensation data query table LUT5 stores a data compensation value of an N-type sub-pixel in the edge reference area in the positive frame and a data compensation value in the negative frame, the sixth sub-compensation data query table LUT6 stores a data compensation value of an F-type sub-pixel in the positive frame and a data compensation value in the negative frame, the seventh sub-compensation data query table LUT7 stores a data compensation value of an N2-type sub-pixel in the positive frame and a data compensation value in the negative frame, and the eighth sub-compensation data query table LUT8 stores a data compensation value of an F2-type sub-pixel in the positive frame and a data compensation value in the negative frame.
It should be noted that fig. 8 only illustrates two query modules among the plurality of query modules included in the brightness compensation module, and does not represent the query modules included in the brightness compensation module in practical application. In practical applications, the brightness compensator may have a plurality of query modules.
The brightness compensator further comprises an obtaining module 14, where the obtaining module 14 is configured to obtain a type of the sub-pixel and a polarity of the current frame of the sub-pixel, and determine the data compensation lookup table referenced by the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel.
In an embodiment of the present application, the brightness compensation module may have a plurality of the acquisition modules 14 corresponding to the query modules 13 one by one.
For example, the luminance compensator shown in fig. 8 may have a first obtaining module 141 and a second obtaining module 142, where the first obtaining module 141 is configured to obtain, from the first mapping module 11 and the second mapping module 12, a type of a corresponding sub-pixel and a polarity of a current frame of the sub-pixel, and query the data compensation lookup table referred to by the sub-pixel from the first query module 131; the second obtaining module 142 is configured to obtain the type of the corresponding sub-pixel and the polarity of the current frame of the sub-pixel from the first mapping module 11 and the second mapping module 12, and query the data compensation lookup table referenced by the sub-pixel from the second query module 132.
It should be noted that fig. 8 only illustrates two of the plurality of acquisition modules included in the brightness compensation module, and does not represent the acquisition modules included in the brightness compensation module in practical application. In practical applications, the brightness compensator may have a plurality of the acquisition modules.
Further, the brightness compensator further includes:
and a linear interpolation module 15, wherein the linear interpolation module 15 stores and records interpolation information of the display panel, and calculates the data compensation value of the current frame of the sub-pixel according to a sub-data compensation lookup table in the data compensation lookup table referenced by the sub-pixel.
The assignment module 16 is configured to compensate the initial data value of the current frame of the sub-pixel according to the data compensation value of the current frame of the sub-pixel, obtain a compensated output data value, and output the output data value (i.e. the Dataoutput in fig. 8) to an external device.
The external device (e.g., timing controller, source driver, etc.) may generate a data voltage based on the output data value of the current frame of the sub-pixel and output the data voltage to the corresponding sub-pixel within the display panel for current frame display of the sub-pixel.
The compensation optical module may receive an initial Data value of each sub-pixel in each frame (i.e., data input in fig. 8) and a polarity of the initial Data value of each sub-pixel in a first frame (i.e., data polarity of CH0 in fig. 8) from an external device (e.g., a graphic processor, a video source, etc.), the polarity of the sub-pixel may be switched in each frame, and the polarity of the initial Data value of each sub-pixel in a subsequent frame may be derived according to the polarity of the first frame.
In an embodiment of the application, modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices.
Where a module may be implemented in software, all modules that can be implemented in software, considering the level of existing hardware technology, one skilled in the art can build corresponding hardware circuitry, including conventional integrated circuits or gate arrays and existing semiconductors such as logic chips, transistors, or other discrete components, to achieve the corresponding functions without regard to cost. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
In the embodiment of the application, the display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer and the like.
The embodiment of the application has the beneficial effects that: the embodiment of the application provides a brightness compensation method, a readable storage medium and a display device, wherein a plurality of sub-pixels are divided into at least two types according to the difference of feed-through voltages, and the positive frame data value and the negative frame data value of the sub-pixels with different feed-through voltage types are compensated, so that the brightness of positive frames and negative frames of the sub-pixels with different types is equal, and the problem of shaking marks of a display panel is solved.
In summary, although the present application has been described in terms of the preferred embodiments, the preferred embodiments are not limited to the above embodiments, and various modifications and alterations can be made by those skilled in the art without departing from the spirit and scope of the application, and the scope of the application is defined by the appended claims.
Claims (7)
1. A brightness compensation method for compensating positive and negative frame brightness of a plurality of sub-pixels of a display panel, wherein the sub-pixels are divided into at least two types according to difference of feed-through voltages, the sub-pixels of the same type have the same feed-through voltage, a display area of the display panel is provided with a plurality of reference areas distributed at intervals, each reference area is provided with a corresponding preset data compensation lookup table, the brightness compensation method comprises:
acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel comprises: determining the type of the sub-pixel according to the position information of the sub-pixel and a preset sub-pixel type mapping table; determining the polarity of the current frame of the sub-pixel according to the position information of the sub-pixel and a preset polarity mapping table;
Determining a data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel, wherein the data compensation value comprises a positive polarity data compensation value and a negative polarity data compensation value;
compensating an initial data value of the current sub-pixel frame according to the data compensation value of the current sub-pixel frame to obtain a compensated output data value, wherein the initial data value comprises a positive polarity initial data value and a negative polarity initial data value, and when the polarity of the current sub-pixel frame is positive polarity, compensating the positive polarity initial data value of the current sub-pixel frame according to the positive polarity data compensation value of the current sub-pixel frame to obtain a compensated positive polarity output data value; when the polarity of the current sub-pixel frame is negative, compensating the negative initial data value of the current sub-pixel frame according to the negative data compensation value of the current sub-pixel frame to obtain a compensated negative output data value;
generating a data voltage based on the output data value of the current frame of the sub-pixel, and outputting the data voltage to the sub-pixel so as to display the current frame of the sub-pixel;
Wherein the step of determining the data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel comprises: acquiring resolution information of the display panel; determining the spatial position of the pixel unit where the sub-pixel is located in the display area according to the position information of the pixel unit where the sub-pixel is located and the resolution information of the display panel; obtaining interpolation information of the display panel; and determining the data compensation lookup table referenced by the sub-pixel according to the interpolation information and the spatial position of the pixel unit where the sub-pixel is located in the display area.
2. The brightness compensation method of claim 1, wherein the step of determining the data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel further comprises:
and determining a sub-data compensation lookup table corresponding to the type of the sub-pixel in the data compensation lookup table referenced by the sub-pixel according to the type of the sub-pixel.
3. The brightness compensation method of claim 2, wherein the step of determining the data compensation value of the current frame of the sub-pixel according to the type of the sub-pixel and the polarity of the current frame of the sub-pixel further comprises:
If the sub-pixel is located in the reference area, acquiring a corresponding data compensation value from the referenced sub-data compensation lookup table according to the polarity of the current frame of the sub-pixel and the initial data value of the current frame of the sub-pixel;
if the sub-pixel is located outside the reference area, calculating the data compensation value of the current sub-pixel frame by adopting an interpolation algorithm according to the sub-data compensation lookup table referenced by the sub-pixel, the polarity of the current sub-pixel frame and the initial data value of the current sub-pixel frame.
4. The brightness compensation method of claim 1, wherein before acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel, the brightness compensation method further comprises:
inputting the type of each sub-pixel and the polarity of each sub-pixel;
storing the position information of each sub-pixel and the type of the sub-pixel corresponding to the position information in the form of establishing the sub-pixel type mapping table;
and storing the position information of each sub-pixel and the polarity of each corresponding sub-pixel in each frame in a mode of establishing the polarity mapping table.
5. The brightness compensation method of claim 1, wherein before acquiring the type of the sub-pixel and the polarity of the current frame of the sub-pixel, the brightness compensation method further comprises:
inputting positive polarity data values and positive polarity data compensation values and negative polarity data compensation values corresponding to each type of the sub-pixels in the reference region;
and storing the type of each sub-pixel in the reference area, the positive polarity data value of each type of sub-pixel and the positive polarity data compensation value corresponding to the sub-pixel, and the negative polarity data value and the negative polarity data compensation value corresponding to the sub-pixel in the data compensation lookup table in the form of establishing the data compensation lookup table.
6. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the luminance compensation method according to any one of claims 1 to 5.
7. A display device comprising a display panel, a processor and a readable storage medium, the processor being configured to execute a program or instructions to implement the steps of the luminance compensation method according to any one of claims 1 to 5.
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