CN118522258A - Brightness compensation table generation method, brightness compensation device, equipment and medium - Google Patents

Abstract

The application relates to a brightness compensation table generation method, a brightness compensation method, a device, a computer device and a storage medium. The method comprises the following steps: for at least one display parameter combination, acquiring a brightness value of a pixel point when the display screen displays in the display parameter combination, wherein the display parameter combination comprises a specific display brightness level and a specific gray scale, the display screen comprises a first display area, a second display area and a hole area, and the second display area at least partially surrounds the hole area; determining a target brightness value corresponding to the display parameter combination according to the brightness value of the pixel point in at least part of the display areas under the display parameter combination, wherein at least part of the display areas comprise a first display area; and constructing a brightness compensation table comprising the display parameter combinations based on the corresponding target brightness values of the display parameter combinations and the brightness values of the pixel points in the display screen under the display parameter combinations. The method can solve the problem of uneven brightness in the display screen due to the hole area, so as to improve the display effect.

Description

Brightness compensation table generation method, brightness compensation device, equipment and medium

Technical Field

The present application relates to the field of display technology, and in particular, to a method for generating a luminance compensation table, a luminance compensation method, a device for generating a luminance compensation table, a luminance compensation device, a computer device, a storage medium, and a computer program product.

Background

Because of the production requirements of display devices, a punching operation is generally required above the display screen of the display device, so that the wiring of the screen body needs to bypass the punching area.

However, such an operation may cause a display screen to be liable to be uneven in brightness.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a method for generating a luminance compensation table, a luminance compensation method, a device for generating a luminance compensation table, a luminance compensation device, a computer apparatus, a computer-readable storage medium, and a computer program product capable of solving the problem of uneven luminance due to an aperture area in a display screen to improve a display effect.

In a first aspect, the present application provides a method for generating a luminance compensation table. The method comprises the following steps:

For at least one display parameter combination, acquiring a brightness value of a pixel point when a display screen displays with the display parameter combination, wherein the display parameter combination comprises a specific display brightness level and a specific gray level, the display screen comprises a first display area, a second display area and a hole area, and the second display area at least partially surrounds the hole area;

Determining a target brightness value corresponding to the display parameter combination according to the brightness value of the pixel point in at least part of the display areas under the display parameter combination, wherein the at least part of the display areas comprise the first display area;

And constructing a brightness compensation table comprising the display parameter combination based on the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination.

In one embodiment, the at least one display parameter combination includes a plurality of display parameter combinations, and the particular display brightness level in the different display parameter combinations includes two particular display brightness levels; the determining process of the two specific display brightness levels comprises the following steps:

Acquiring a plurality of shooting data, wherein the plurality of shooting data are obtained by shooting when the image acquisition device displays a display screen in a plurality of preset display brightness levels, and the shooting data comprise brightness values of pixel points in the second display area;

determining a target display brightness level according to the plurality of shooting data;

According to the target display brightness level, selecting two display brightness levels from a plurality of preset display brightness levels as the specific display brightness level; the specific display brightness levels include a first specific display brightness level and a second specific display brightness level; the first particular display brightness level is less than the target display brightness level; the second particular display brightness level is greater than the target display brightness level.

In one embodiment, the first display area is determined based on a display area of the display screen other than the second display area; the determining, according to the luminance values of the pixel points in the first display area under the display parameter combination, a target luminance value corresponding to the display parameter combination includes:

under the display parameter combination, selecting a preset number of pixel points from the middle area of the first display area as target pixel points;

and taking the average value or the mode of the brightness values of the target pixel points as the corresponding target brightness value of the display parameter combination.

In one embodiment, the constructing a brightness compensation table including the display parameter combination based on the target brightness values corresponding to the display parameter combination and the brightness values of the pixels in the display screen under the display parameter combination includes:

Determining a brightness compensation value of a pixel point in the display screen under the display parameter combination according to the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination;

Fitting according to the brightness compensation values of the pixel points in the display screen under the display parameter combination to obtain a corresponding brightness compensation curve of the pixel points in the display screen;

Constructing a brightness compensation table comprising the display parameter combinations according to the brightness compensation curves corresponding to the pixel points in the display screen; the brightness compensation table comprises a brightness compensation sub-table corresponding to the pixel points in the second display area.

In one embodiment, the method further comprises:

and burning the brightness compensation table into a storage device corresponding to the display screen.

In one embodiment, the second display area is a display area corresponding to a pixel row where the hole area is located.

In a second aspect, the present application also provides a brightness compensation method. Applied to a display device configured with the luminance compensation table of any one of claims 1 to 6; the brightness compensation table comprises a brightness compensation sub-table corresponding to the pixel points in the second display area; the method comprises the following steps:

determining a brightness compensation sub-table matched with the pixel points in the second display area according to the current display brightness level of the display screen;

And carrying out brightness compensation on the pixel points in the second display area according to the matched brightness compensation sub-table and the current gray scale of the pixel points in the second display area.

In one embodiment, the at least one display parameter combination includes a plurality of display parameter combinations, and the particular display brightness levels in the different display parameter combinations include a first particular display brightness level and a second particular display brightness level; and determining a brightness compensation sub-table matched with the pixel points in the second display area according to the current display brightness level of the display screen, wherein the brightness compensation sub-table comprises:

Comparing the current display brightness level with a target display brightness level;

Determining that the matched brightness compensation sub-table is the brightness compensation sub-table corresponding to the first specific display brightness level when the current display brightness level is smaller than the target display brightness level, wherein the first specific display brightness level is smaller than the target display brightness level;

And under the condition that the current display brightness level is greater than or equal to the target display brightness level, determining the matched brightness compensation sub-table as a brightness compensation sub-table corresponding to the second specific display brightness level, wherein the second specific display brightness level is greater than the target display brightness level.

In one embodiment, the performing brightness compensation on the pixel point in the second display area according to the matched brightness compensation sub-table and the current gray level of the pixel point in the second display area includes:

Comparing the current gray scale of each pixel point in the second display area with a plurality of preset gray scales in a matched brightness compensation sub-table; the plurality of preset gray scales comprise a plurality of specific gray scales;

under the condition that a plurality of preset gray scales in the brightness compensation sub-table comprise preset gray scales corresponding to the current gray scales, acquiring brightness compensation values of the preset gray scales corresponding to the current gray scales so as to carry out brightness compensation on the pixel points;

Under the condition that a plurality of preset gray scales in the brightness compensation sub-table do not comprise preset gray scales corresponding to the current gray scale, calculating brightness compensation values corresponding to the current gray scale according to preset gray scales adjacent to the current gray scale and brightness compensation values corresponding to the adjacent preset gray scales so as to carry out brightness compensation on the pixel points; the preset gray level adjacent to the current gray level includes a larger preset gray level adjacent to the current gray level and a smaller preset gray level adjacent to the current gray level.

In a third aspect, the present application further provides a device for generating a brightness compensation table. The device comprises:

The display device comprises a brightness value acquisition module, a display screen display module and a display module, wherein the brightness value acquisition module is used for acquiring a brightness value of a pixel point when a display screen displays with at least one display parameter combination, the display parameter combination comprises a specific display brightness level and a specific gray level, the display screen comprises a first display area, a second display area and a hole area, and the second display area at least partially surrounds the hole area;

The target brightness value determining module is used for determining a corresponding target brightness value of the display parameter combination according to the brightness value of the pixel point in at least part of the display areas under the display parameter combination, wherein the at least part of the display areas comprise the first display area;

and the compensation table generation module is used for constructing a brightness compensation table comprising the display parameter combination based on the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination.

In a fourth aspect, the present application further provides a brightness compensation device. Applied to a display device configured with the luminance compensation table of any one of claims 1 to 6; the brightness compensation table comprises a brightness compensation sub-table corresponding to the pixel points in the second display area; the device comprises:

the compensation table determining module is used for determining a brightness compensation sub-table matched with the pixel points in the second display area according to the current display brightness level of the display screen;

and the brightness compensation module is used for carrying out brightness compensation on the pixel points in the second display area according to the matched brightness compensation sub-table and the current gray scale of the pixel points in the second display area.

In a fifth aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the steps of the method described above when the processor executes the computer program.

In a sixth aspect, the present application also provides a computer readable storage medium. The computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the method described above.

In a seventh aspect, the application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the method described above.

The method, the device, the computer equipment and the storage medium for generating the brightness compensation table acquire the brightness value of the pixel point when the display screen displays in the display parameter combination aiming at least one display parameter combination, wherein the display parameter combination comprises a specific display brightness level and a specific gray level, the display screen comprises a first display area, a second display area and a hole area, and the second display area at least partially surrounds the hole area; determining a target brightness value corresponding to the display parameter combination according to the brightness value of the pixel point in at least part of the display areas under the display parameter combination, wherein at least part of the display areas comprise a first display area; based on the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination, constructing a brightness compensation table comprising the display parameter combination, adopting the method, taking the brightness difference of the display screen caused by the hole area into consideration, the brightness compensation of the display screen with the hole area is realized, the problem of uneven brightness in the display screen due to the hole area is solved, and the visual consistency and consistency of the display area with the hole area and the display area without the hole area are ensured. Based on the constructed brightness compensation table, the brightness performance under different display parameter combinations can be optimized, and good display effects can be obtained under various parameter settings.

Drawings

FIG. 1 is a flow chart of a method for generating a brightness compensation table according to one embodiment;

FIG. 2 is a schematic diagram of a display screen including a first display area and a second display area in one embodiment;

FIG. 3 is a schematic diagram of a target pixel in a first display area according to one embodiment;

FIG. 4 is a flow chart illustrating the construction of a brightness compensation table according to one embodiment;

FIG. 5 is a schematic diagram of a brightness compensation curve corresponding to a pixel in an embodiment;

FIG. 6 is a flow chart of a brightness compensation method according to an embodiment;

FIG. 7 is a block diagram showing a structure of a luminance compensation table generating apparatus in one embodiment;

FIG. 8 is a block diagram showing a structure of a brightness compensation device according to an embodiment;

fig. 9 is an internal structural diagram of a computer device in one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

Because of the production requirement of the display device, a punching operation is generally required above the display screen of the display device, so that the wiring of the screen body needs to bypass the punching area, the load of the hole area is inconsistent with other places of the screen body of the display screen, and finally the display state of the hole area is inconsistent with other places of the screen.

In order to solve the above technical problems, an embodiment of the present application provides a method for generating a brightness compensation table, a brightness compensation method, a device, a computer device, and a storage medium. The method for generating the brightness compensation table provided by the embodiment of the application is described below.

In one embodiment, as shown in fig. 1, there is provided a method for generating a brightness compensation table, including the steps of:

step 102, for at least one display parameter combination, obtaining a brightness value of a pixel point when a display screen displays with the display parameter combination, wherein the display parameter combination comprises a specific display brightness level and a specific gray level, the display screen comprises a first display area, a second display area and a hole area, and the second display area at least partially surrounds the hole area.

Wherein the display parameter combination may include a specific display brightness level and a gray scale. The display brightness level is the overall display brightness of the control screen body. The gray scale is the gray scale of the pixel point in the image displayed by the display screen body. In the case of performing screen display at the same display brightness, the image displayed on the display screen may include all gray scales. For example, in a display device having 256 gray scales, the display screen of the display device displays at a specific display brightness level, and the gray scale range of the pixel point in the corresponding image may be 0 to 255 gray scales.

The display screen comprises two display areas, namely a first display area, a second display area and a hole area. The second display area at least partially surrounds the aperture area. The hole area is an area required to be punched according to the production requirement of the display screen, and is generally positioned on the upper half part of the screen body of the display screen. On the display screen body, the pixel row occupied by the second display area is far smaller than the pixel row occupied by the first display area. In particular, referring to FIG. 2, a schematic diagram of a display screen including a first display area and a second display area in one embodiment is shown.

In specific practice, the specific process of obtaining the brightness value of each pixel point when the display screen displays in the display parameter combination may be: aiming at each batch of produced display screen bodies, the display screen is controlled to display first images under different gray scales at preset display brightness levels, wherein the first images are images displayed at a single gray scale. For example, all pixels in the first image are displayed in 16 gray scale. And shooting the display screen through the image acquisition device to acquire image data under different gray scales. The image data includes a luminance value of each pixel displayed at a specific display luminance and a specific gray level. The image capture Device may be a Charge-coupled Device (CCD) camera.

Step 104, determining a target brightness value corresponding to the display parameter combination according to the brightness value of the pixel point in at least part of the display areas under the display parameter combination, wherein at least part of the display areas comprise the first display area.

Illustratively, the target luminance value corresponds to a display parameter combination. Under different combinations of display parameters, there is a difference in the corresponding target luminance values. The target luminance value may be determined based on luminance values of the pixel points in the first display area. The first display area may be located in a much larger pixel row than the second display area comprising the aperture area. Specifically, in the case of determining the display parameter combination, a target pixel point is acquired from the first display area to determine a target luminance value based on the target pixel point.

And 106, constructing a brightness compensation table comprising the display parameter combination based on the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination.

The brightness compensation table comprises corresponding brightness compensation values of pixel points in the display screen under specific gray scales under corresponding specific display brightness levels. The brightness compensation value is a brightness value which needs to be increased or decreased at a specific gray level of each pixel point.

Specifically, the construction process of the brightness compensation table including the display parameter combinations may be: under the condition that the display parameter combination is determined, according to the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination, the brightness compensation value of the pixel point in the display screen under the display parameter combination is obtained, and therefore a brightness compensation table comprising the display parameter combination is constructed.

The brightness compensation table may be used to perform brightness compensation on the pixel points in the second display area when the display screen including the hole area displays the image.

In the method for generating the brightness compensation table, for at least one display parameter combination, the brightness value of the pixel point when the display screen displays by the display parameter combination is obtained, wherein the display parameter combination comprises a specific display brightness level and a specific gray level, the display screen comprises a first display area, a second display area and a hole area, and the second display area at least partially surrounds the hole area; determining a target brightness value corresponding to the display parameter combination according to the brightness value of the pixel point in at least part of the display areas under the display parameter combination, wherein at least part of the display areas comprise a first display area; based on the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination, constructing a brightness compensation table comprising the display parameter combination, adopting the method, taking the brightness difference of the display screen caused by the hole area into consideration, the brightness compensation of the display screen with the hole area is realized, the problem of uneven brightness in the display screen due to the hole area is solved, and the visual consistency and consistency of the display area with the hole area and the display area without the hole area are ensured. Based on the constructed brightness compensation table, the brightness performance under different display parameter combinations can be optimized, and good display effects can be obtained under various parameter settings.

In one embodiment, the at least one display parameter combination comprises a plurality of display parameter combinations, and the particular display brightness level in the different display parameter combinations comprises two particular display brightness levels; the determining process of the two specific display brightness levels comprises the following steps:

Acquiring a plurality of shooting data, wherein the plurality of shooting data are obtained by shooting when the image acquisition device displays a display screen in a plurality of preset display brightness levels, and the shooting data comprise brightness values of pixel points in the second display area;

determining a target display brightness level according to the plurality of shooting data;

According to the target display brightness level, selecting two display brightness levels from a plurality of preset display brightness levels as the specific display brightness level; the specific display brightness levels include a first specific display brightness level and a second specific display brightness level; the first particular display brightness level is less than the target display brightness level; the second particular display brightness level is greater than the target display brightness level.

In particular practice, since the display screen including the aperture region has a target display brightness level when displaying at different display brightness levels, the mura phenomenon of the brightness displayed by the second display region is inverted, for example, when the display screen displays at a lower display brightness level, the corresponding second display region is darker relative to the first display region, and when displaying at a higher display brightness level, the corresponding second display region is brighter relative to the first display region.

The target display brightness level may be a display brightness level at which the brightness phenomenon displayed in the second display area is inverted. Specifically, the determination manner of the target display brightness level may be: and acquiring a display brightness level range which can be displayed by the display screen, sequentially controlling the display screen to display a test image from the minimum value of the display brightness level range to the maximum value of the display brightness level range, and correspondingly shooting the screen body of the display screen through the image acquisition device to acquire a plurality of corresponding shooting data, thereby identifying the display brightness level with the brightness phenomenon displayed in the second display area being inverted and taking the display brightness level as a target display brightness level. In particular practice, the target display brightness levels of the display screens generated in the same batch are generally the same.

Specifically, the process of selecting two specific display brightness levels from a plurality of preset display brightness levels is as follows: selecting a preset display brightness level as a median from a minimum value of a plurality of preset display brightness levels and a target display brightness level; the preset display luminance level is selected as a median from the target display luminance level to the maximum value among the plurality of preset display luminances. For example, the target display luminance level is 200nit; the plurality of preset display brightness levels are respectively 30nit, 50nit, 100nit, 150nit, 300nit, 450nit, 600nit and 750nit, and the two selected specific display brightness levels are respectively 100nit and 450nit.

In specific practice, two specific display luminance levels selected from a plurality of preset display luminance levels may be a first specific display luminance level and a second specific display luminance level, respectively. The first specific display brightness level is smaller than the target display brightness level, and the second specific display brightness level is larger than the target display brightness level.

In the above embodiment, by shooting and analyzing the display screen under different preset display brightness levels, a more accurate target display brightness level is obtained, so that two specific display brightness levels are selected from a plurality of preset display brightness levels according to the target display brightness level, and a corresponding brightness compensation table is constructed, so that brightness compensation of the display screen is realized, and the display effect is improved.

In one embodiment, the second display area is a display area corresponding to a pixel row where the hole area is located.

The second display area may be a display area corresponding to a pixel row where the hole area is located. In general, the proportion of the second display area in the display screen is much smaller than the proportion of the first display area in the display screen.

In one embodiment, the first display area is determined based on a display area of the display screen other than the second display area; step 104, including:

step 1042, selecting a preset number of pixels from the middle area of the first display area as the target pixels under the display parameter combination.

Step 1044, taking the average value or the mode of the brightness values of the target pixel points as the corresponding target brightness value of the display parameter combination.

Wherein the first display area is determined based on the display of the display screen other than the second display area. The size of the first display area is much larger than that of the second display area, and the first display area is a display area which does not comprise a hole area. The middle region of the first display region may include a plurality of target pixel points. The middle region of the first display area may be a rectangular region, and referring to fig. 3, a schematic diagram of a target pixel point in the first display area in one embodiment is shown. The size corresponding to the middle area of the first display area may be determined according to practical requirements, for example, may be 10×10 pixels, or 30×50 pixels. The preset number may be 100, 200, 500 or more depending on the accuracy and computational resources that need to be determined.

For example, the target luminance value may be determined based on an average or mode of luminance values of the selected target pixel points.

In the above embodiment, by selecting the pixel point in the middle area of the first display area as the target pixel point, the edge effect and the bad pixel point can be avoided. Meanwhile, by calculating the average value or the mode of the brightness values of the target pixel points, more accurate target brightness values can be obtained, so that brightness compensation is better performed, and the display effect is improved.

In one embodiment, referring to FIG. 4, a flow diagram illustrating the construction of a brightness compensation table in one embodiment, step 108 comprises:

Step 402, determining a brightness compensation value of the pixel point in the second display area under the display parameter combination according to the target brightness value corresponding to the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination.

The display parameter combination comprises a specific display brightness level and a specific gray level of the display screen. And under the condition of the same display parameter combination, determining the brightness compensation value of each pixel point in the display screen according to the corresponding target brightness value and the brightness value of the pixel point in the display screen. The luminance compensation value of each pixel is the difference between the luminance value of each pixel and the target luminance value in the case of this combination of display parameters. For example, if the target luminance value is 500 and the luminance value of a certain pixel is 400, the luminance compensation value corresponding to the certain pixel is 100.

And step 404, fitting according to the brightness compensation values of the pixel points in the second display area under the display parameter combination to obtain a brightness compensation curve corresponding to the pixel points in the second display area.

Wherein, there is a brightness compensation curve corresponding to the number of the selected specific display brightness levels for each pixel point. That is, there are two kinds of brightness compensation curves for each pixel point. The abscissa of the brightness compensation curve is gray scale, and the ordinate is corresponding brightness compensation value. In particular, referring to fig. 5, a schematic diagram of a brightness compensation curve corresponding to a pixel point in one embodiment is shown. In fig. 5, when the gray scale displayed for the same pixel point is different in the same specific display brightness level, the corresponding brightness compensation value is also different. The abscissa of the brightness compensation curve ranges from 0 to 255.

Specifically, the process of obtaining the brightness compensation curve corresponding to the pixel point in the display screen may be: for each pixel point, under the same specific display brightness level, different specific gray scales are selected, so that the brightness compensation value corresponding to each specific gray scale is obtained, and the brightness compensation curve of each pixel point under the specific display brightness level is constructed.

In specific practice, for each pixel point, the specific gray levels can be selected to be 0, 32, 64, 96, 128, 160, 192 and 224, and the brightness value of the pixel point under the 8 specific gray levels and the corresponding target brightness value are obtained to determine the brightness compensation value corresponding to each specific gray level, so that fitting is performed according to the brightness values under the 8 specific gray levels and the brightness compensation values, and the corresponding brightness compensation curve of the pixel point is obtained.

Step 406, constructing a brightness compensation table including the display parameter combinations according to the brightness compensation curves corresponding to the pixel points in the second display area; the brightness compensation table comprises a brightness compensation sub-table corresponding to the pixel points in the second display area.

Illustratively, for each pixel point in the display screen, there is a corresponding brightness compensation curve at a particular display brightness level. The brightness compensation curve comprises brightness compensation values required by the corresponding pixel points to display at different gray scales under the same specific display brightness level.

Specifically, for each pixel point in the second display area, there are corresponding luminance compensation sub-tables at two specific display luminance levels. In specific practice, the second display area may be subjected to refinement and partitioning to obtain a plurality of small partitions, and a corresponding brightness compensation table may be constructed for each small partition. Each small partition comprises at least one pixel point.

The brightness compensation sub-table may include a specific display brightness level, a plurality of preset gray levels, and a brightness compensation value of each pixel point under the preset gray level. Specifically, polynomial coefficients of a brightness compensation curve corresponding to each pixel point are obtained, so that brightness compensation values under a plurality of preset gray scales are obtained according to the polynomial coefficients. The plurality of preset gray levels may include a plurality of specific gray levels.

In the above embodiment, the brightness compensation value of each pixel point is determined according to the target brightness value and the brightness value of the actual pixel point, and then the brightness compensation curve is obtained by fitting, so as to finally construct the brightness compensation table. The brightness compensation table can be used for accurately compensating the brightness of each pixel point in the actual display process, so that the display effect is improved. Meanwhile, the specific condition of each pixel point is considered, so that the overall display effect of the display screen is further improved.

In one embodiment, the method further comprises:

and burning the brightness compensation table into a storage device corresponding to the display screen.

The storage device corresponding to the display screen can be a flash memory, so that the phenomenon of uneven brightness of the display screen is eliminated according to the brightness compensation table.

In order to better understand the process of performing brightness compensation by using the brightness compensation table, an embodiment of the present application proposes a brightness compensation method. The brightness compensation method provided by the embodiment of the application is described below.

In one embodiment, as shown in fig. 6, there is provided a brightness compensation method applied to a display device configuring the above brightness compensation table; the brightness compensation table comprises a brightness compensation sub-table corresponding to the pixel points in the second display area; the method comprises the following steps:

step 602, determining a brightness compensation sub-table matched with the pixel points in the second display area according to the current display brightness level of the display screen.

The current display brightness level of the display screen can be obtained according to the automatic environment condition of the display equipment, and the display brightness level of the screen body can be selected for a user according to the use requirement of the user. For example, when the display device is a mobile phone, the current display brightness level of the display screen of the mobile phone can be regulated and controlled by the user according to the environment in which the user is using the mobile phone or by regulating the brightness display bar.

Illustratively, a brightness compensation sub-table matched with each pixel point in the second display area is determined according to the current display brightness level and the target display brightness level of the display screen.

And step 604, performing brightness compensation on the pixel points in the second display area according to the matched brightness compensation sub-table and the current gray scale of the pixel points in the second display area.

For each pixel point in the second display area, a brightness compensation value corresponding to the current gray level is searched from the matched brightness compensation sub-table according to the current gray level, so as to perform brightness compensation on the pixel point in the second display area.

Specifically, the pixel points in the first display area may be compensated by a conventional brightness compensation method, which is not limited herein.

In the brightness compensation method, according to the current display brightness level of the display screen, determining a brightness compensation sub-table matched with the pixel points in the second display area; according to the matched brightness compensation sub-table and the current gray level of the pixel point in the second display area, the brightness compensation is carried out on the pixel point in the second display area, by adopting the method, by matching the corresponding brightness compensation sub-table for the pixel points in the second display area and carrying out brightness compensation according to the current gray scale, the problem of non-uniformity of brightness of the area can be effectively improved, and the whole display is more uniform. And the corresponding brightness compensation sub-table is selected for the pixel points in the second display area according to the current display brightness level of the display screen, so that the best display effect can be ensured to be obtained under different brightness levels, and the conditions of overexposure or darkness are avoided.

In one embodiment, the at least one display parameter combination includes a plurality of display parameter combinations, and the particular display brightness levels in the different display parameter combinations include a first particular display brightness level and a second particular display brightness level; step 602, including:

step 6022, comparing the current display brightness level with the target display brightness level.

Step 6024, determining that the matched brightness compensation sub-table is the brightness compensation sub-table corresponding to the first specific display brightness level, where the first specific display brightness level is smaller than the target display brightness level, if the current display brightness level is smaller than the target display brightness level.

Step 6026, determining that the matched brightness compensation sub-table is the brightness compensation sub-table corresponding to the second specific display brightness level, where the second specific display brightness level is greater than the target display brightness level, when the current display brightness level is greater than or equal to the target display brightness level.

The target display brightness level may be a display brightness level at which the brightness phenomenon displayed in the second display area is inverted. The target display brightness level is obtained in the process of constructing a brightness compensation table for the display screen.

Specifically, for each pixel point in the second display area, there are two brightness compensation sub-tables corresponding to the specific display brightness levels. The two particular display brightness levels include a first particular display brightness level and a second particular display brightness level. The first particular display brightness level is less than the target display brightness level. The second particular display brightness level is greater than the target display brightness level. The determining process of the first specific display brightness level and the second specific display brightness level is referred to the above embodiment, and the description of the present invention is omitted herein.

In an exemplary embodiment, when the current display brightness level is less than the target display brightness level, determining that the matched brightness compensation sub-table is the brightness compensation sub-table corresponding to the first specific display brightness level; and under the condition that the current display brightness level is greater than or equal to the target display brightness level, determining the matched brightness compensation sub-table as the brightness compensation sub-table corresponding to the second specific display brightness.

In the above embodiment, by comparing the current display brightness level with the target display brightness level and selecting the matched brightness compensation sub-table according to the comparison, brightness adjustment can be ensured to be more accurate, insufficient or excessive brightness adjustment can be avoided, and the display effect of the display screen can be ensured.

In one embodiment, step 604 comprises:

Step 6042, for each pixel in the second display area, comparing the current gray level of the pixel with a plurality of preset gray levels in the matched brightness compensation sub-table.

Step 6044, when the plurality of preset gray scales in the brightness compensation sub-table include the preset gray scale corresponding to the current gray scale, obtaining a brightness compensation value of the preset gray scale corresponding to the current gray scale, so as to perform brightness compensation on the pixel point.

Step 6046, under the condition that the plurality of preset gray scales in the brightness compensation sub-table do not include the preset gray scale corresponding to the current gray scale, calculating the brightness compensation value corresponding to the current gray scale according to the preset gray scale adjacent to the current gray scale and the brightness compensation value corresponding to the adjacent preset gray scale so as to perform brightness compensation on the pixel point; the preset gray level adjacent to the current gray level includes a larger preset gray level adjacent to the current gray level and a smaller preset gray level adjacent to the current gray level.

For each pixel point in the second display area, each corresponding brightness compensation sub-table comprises a specific display brightness level, a plurality of preset gray scales and a brightness compensation value of each pixel point under the preset gray scales. The plurality of preset gray levels may include a plurality of specific gray levels.

Specifically, in the case that the plurality of preset gray scales in the brightness compensation sub-table include the preset gray scale corresponding to the current gray scale, the brightness compensation value of the preset gray scale corresponding to the current gray scale is directly obtained, so as to perform brightness compensation on the pixel point. Under the condition that a plurality of preset gray scales in the brightness compensation sub-table do not comprise preset gray scales corresponding to the current gray scales, calculating brightness compensation values corresponding to the current gray scales according to preset gray scales adjacent to the current gray scales and brightness compensation values corresponding to the adjacent preset gray scales so as to carry out brightness compensation on the pixel points.

In the above embodiment, when the luminance compensation sub-table includes the preset gray level directly corresponding to the current gray level, the corresponding luminance compensation value may be directly used to perform luminance compensation on the pixel point, so as to ensure the accuracy of compensation. When the preset gray scale directly corresponding to the current gray scale is not included in the brightness compensation sub-table, the brightness compensation value of the current gray scale can be estimated by calculating the preset gray scale adjacent to the current gray scale and the brightness compensation value corresponding to the preset gray scale, so that smooth brightness transition between the adjacent gray scales can be ensured, brightness abrupt change caused by gray scale change can be avoided, and the display effect is improved.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a device for generating the brightness compensation table for realizing the method for generating the brightness compensation table. The implementation of the solution provided by the apparatus is similar to the implementation described in the above method, so the specific limitation in the embodiment of the generating apparatus of one or more luminance compensation tables provided below may refer to the limitation of the generating method of the luminance compensation table in the above description, and will not be repeated here.

In one embodiment, as shown in fig. 7, there is provided a generating apparatus of a brightness compensation table, including: a luminance value acquisition module 702, a target luminance value determination module 704, and a compensation table construction module 706, wherein:

a luminance value obtaining module 702, configured to obtain, for at least one display parameter combination, a luminance value of a pixel point when a display screen displays with the display parameter combination, where the display parameter combination includes a specific display luminance level and a specific gray level, and the display screen includes a first display area, a second display area, and a hole area, and the second display area at least partially surrounds the hole area;

a target brightness value determining module 704, configured to determine a target brightness value corresponding to the display parameter combination according to brightness values of pixels in at least part of display areas under the display parameter combination, where at least part of display areas includes the first display area;

The compensation table construction module 706 is configured to construct a brightness compensation table including the display parameter combination based on the target brightness value corresponding to the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination.

In some embodiments, the at least one display parameter combination comprises a plurality of display parameter combinations, and the particular display brightness level in the different display parameter combinations comprises two particular display brightness levels; the apparatus for generating a luminance compensation table further includes: a specific brightness level determination module;

The specific brightness level determining module is specifically configured to: acquiring a plurality of shooting data, wherein the plurality of shooting data are obtained by shooting when the image acquisition device displays a display screen in a plurality of preset display brightness levels, and the shooting data comprise brightness values of pixel points in the second display area; determining a target display brightness level according to the plurality of shooting data; according to the target display brightness level, selecting two display brightness levels from a plurality of preset display brightness levels as the specific display brightness level; the specific display brightness levels include a first specific display brightness level and a second specific display brightness level; the first particular display brightness level is less than the target display brightness level; the second particular display brightness level is greater than the target display brightness level.

In some embodiments, the first display area is determined based on a display area of the display screen other than the second display area; the target brightness value determining module 704 includes:

A target pixel point determining unit, configured to select, under the display parameter combination, a preset number of pixel points from an intermediate area of the first display area as target pixel points;

And the target brightness value determining unit is used for taking the average value or the mode of the brightness values of the target pixel points as the corresponding target brightness value of the display parameter combination.

In some embodiments, the compensation table construction module 706 includes:

The compensation value determining unit is used for determining the brightness compensation value of the pixel point in the second display area under the display parameter combination according to the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination;

The compensation curve obtaining unit is used for fitting according to the brightness compensation values of the pixel points in the second display area under the display parameter combination to obtain a corresponding brightness compensation curve of the pixel points in the second display area;

The compensation table construction unit is used for constructing a brightness compensation table comprising the display parameter combination according to the brightness compensation curve corresponding to the pixel points in the second display area; the brightness compensation table comprises a brightness compensation sub-table corresponding to the pixel points in the second display area.

In some embodiments, the brightness compensation device is specifically configured to: and burning the brightness compensation table into a storage device corresponding to the display screen.

In some embodiments, the second display area is a display area corresponding to a pixel row where the hole area is located.

Based on the same inventive concept, the embodiment of the application also provides a brightness compensation device for realizing the brightness compensation method. The implementation of the solution provided by the device is similar to that described in the above method, so the specific limitation of one or more embodiments of the brightness compensation device provided below may be referred to the limitation of the brightness compensation method hereinabove, and will not be repeated here.

In one embodiment, as shown in fig. 8, there is provided a brightness compensation device comprising: a compensation table determination module 802 and a brightness compensation module 804, wherein:

The compensation table determining module 802 is configured to determine, according to a current display brightness level of the display screen, a brightness compensation sub-table that matches with a pixel point in the second display area;

And the brightness compensation module 804 is configured to perform brightness compensation on the pixel points in the second display area according to the matched brightness compensation sub-table and the current gray level of the pixel points in the second display area.

In some embodiments, the at least one display parameter combination comprises a plurality of display parameter combinations, the particular display brightness levels in the different display parameter combinations comprising a first particular display brightness level and a second particular display brightness level; the compensation table determination module 802 includes:

A first comparing unit, configured to compare the current display brightness level with a target display brightness level;

The first compensation table determining unit is used for determining that the matched brightness compensation sub-table is the brightness compensation sub-table corresponding to the first specific display brightness level when the current display brightness level is smaller than the target display brightness level, and the first specific display brightness level is smaller than the target display brightness level;

and the second compensation table determining unit is used for determining that the matched brightness compensation sub-table is the brightness compensation sub-table corresponding to the second specific display brightness level when the current display brightness level is greater than or equal to the target display brightness level, and the second specific display brightness level is greater than the target display brightness level.

In some embodiments, the brightness compensation module 804 includes:

The second comparison unit is used for comparing the current gray level of each pixel point in the second display area with a plurality of preset gray levels in the matched brightness compensation sub-table; the plurality of preset gray scales comprise a plurality of specific gray scales;

the first compensation unit is used for obtaining a brightness compensation value of the preset gray scale corresponding to the current gray scale when the preset gray scales in the brightness compensation sub-table comprise the preset gray scale corresponding to the current gray scale so as to carry out brightness compensation on the pixel point;

The second compensation unit is used for calculating the brightness compensation value corresponding to the current gray level according to the preset gray level adjacent to the current gray level and the brightness compensation value corresponding to the adjacent preset gray level under the condition that the preset gray levels in the brightness compensation sub-table do not comprise the preset gray level corresponding to the current gray level, so as to carry out brightness compensation on the pixel point; the preset gray level adjacent to the current gray level includes a larger preset gray level adjacent to the current gray level and a smaller preset gray level adjacent to the current gray level.

The above-described generation means of the luminance compensation table or each module in the luminance compensation means may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In one embodiment, a computer device is provided, which may be a terminal, and the internal structure thereof may be as shown in fig. 9. The computer device includes a processor, a memory, an input/output interface, a communication interface, a display unit, and an input means. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method of generating a luminance compensation table or a method of luminance compensation.

The display unit of the computer device is used for forming a visual picture, and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.

It will be appreciated by persons skilled in the art that the architecture shown in fig. 9 is merely a block diagram of some of the architecture relevant to the present inventive arrangements and is not limiting as to the computer device to which the present inventive arrangements are applicable, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.

In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, implements the steps of the method embodiments described above.

In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.

It should be noted that, the user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use and processing of the related data need to comply with the related laws and regulations and standards of the related country and region.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magneto-resistive random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (PHASE CHANGE Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims (13)

1. A method of generating a brightness compensation table, the method comprising:

For at least one display parameter combination, acquiring a brightness value of a pixel point when a display screen displays with the display parameter combination, wherein the display parameter combination comprises a specific display brightness level and a specific gray level, the display screen comprises a first display area, a second display area and a hole area, and the second display area at least partially surrounds the hole area;

Determining a target brightness value corresponding to the display parameter combination according to the brightness value of the pixel point in at least part of the display areas under the display parameter combination, wherein the at least part of the display areas comprise the first display area;

And constructing a brightness compensation table comprising the display parameter combination based on the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination.

2. The method of claim 1, wherein the at least one combination of display parameters comprises a plurality of combinations of display parameters, and wherein a particular display brightness level in a different combination of display parameters comprises two particular display brightness levels; the determining process of the two specific display brightness levels comprises the following steps:

Acquiring a plurality of shooting data, wherein the plurality of shooting data are obtained by shooting when the image acquisition device displays a display screen in a plurality of preset display brightness levels, and the shooting data comprise brightness values of pixel points in the second display area;

determining a target display brightness level according to the plurality of shooting data;

According to the target display brightness level, selecting two display brightness levels from a plurality of preset display brightness levels as the specific display brightness level; the specific display brightness levels include a first specific display brightness level and a second specific display brightness level; the first particular display brightness level is less than the target display brightness level; the second particular display brightness level is greater than the target display brightness level.

3. The method of claim 1, wherein the first display area is determined based on a display area of the display screen other than a second display area; the determining, according to the luminance values of the pixel points in the first display area under the display parameter combination, a target luminance value corresponding to the display parameter combination includes:

under the display parameter combination, selecting a preset number of pixel points from the middle area of the first display area as target pixel points;

and taking the average value or the mode of the brightness values of the target pixel points as the corresponding target brightness value of the display parameter combination.

4. The method of claim 1, wherein the constructing a brightness compensation table including the display parameter combinations based on the respective target brightness values of the display parameter combinations and the brightness values of the pixels in the display screen under the display parameter combinations includes:

Determining a brightness compensation value of a pixel point in the second display area under the display parameter combination according to the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination;

Fitting according to the brightness compensation values of the pixel points in the second display area under the display parameter combination to obtain a brightness compensation curve corresponding to the pixel points in the second display area;

Constructing a brightness compensation table comprising the display parameter combinations according to the brightness compensation curves corresponding to the pixel points in the second display area; the brightness compensation table comprises a brightness compensation sub-table corresponding to the pixel points in the second display area.

5. The method according to claim 1, wherein the method further comprises:

and burning the brightness compensation table into a storage device corresponding to the display screen.

6. The method of any one of claims 1 to 4, wherein the second display area is a display area corresponding to a pixel row in which the aperture area is located.

7. A brightness compensation method characterized by being applied to a display device configured with the brightness compensation table of any one of claims 1 to 6; the brightness compensation table comprises a brightness compensation sub-table corresponding to the pixel points in the second display area; the method comprises the following steps:

determining a brightness compensation sub-table matched with the pixel points in the second display area according to the current display brightness level of the display screen;

And carrying out brightness compensation on the pixel points in the second display area according to the matched brightness compensation sub-table and the current gray scale of the pixel points in the second display area.

8. The method of claim 7, wherein the at least one combination of display parameters comprises a plurality of combinations of display parameters, and wherein a particular display brightness level in a different combination of display parameters comprises a first particular display brightness level and a second particular display brightness level; and determining a brightness compensation sub-table matched with the pixel points in the second display area according to the current display brightness level of the display screen, wherein the brightness compensation sub-table comprises:

Comparing the current display brightness level with a target display brightness level;

Determining that the matched brightness compensation sub-table is the brightness compensation sub-table corresponding to the first specific display brightness level when the current display brightness level is smaller than the target display brightness level, wherein the first specific display brightness level is smaller than the target display brightness level;

And under the condition that the current display brightness level is greater than or equal to the target display brightness level, determining the matched brightness compensation sub-table as a brightness compensation sub-table corresponding to the second specific display brightness level, wherein the second specific display brightness level is greater than the target display brightness level.

9. The method of claim 7, wherein performing brightness compensation on the pixel points in the second display area according to the matched brightness compensation sub-table and the current gray level of the pixel points in the second display area comprises:

Comparing the current gray scale of each pixel point in the second display area with a plurality of preset gray scales in a matched brightness compensation sub-table; the plurality of preset gray scales comprise a plurality of specific gray scales;

Acquiring a brightness compensation value of a preset gray scale corresponding to the current gray scale under the condition that a plurality of preset gray scales in the brightness compensation sub-table comprise the preset gray scale corresponding to the current gray scale so as to carry out brightness compensation on the pixel point;

under the condition that a plurality of preset gray scales in the brightness compensation sub-table do not comprise preset gray scales corresponding to the current gray scales, calculating brightness compensation values corresponding to the current gray scales according to preset gray scales adjacent to the current gray scales and brightness compensation values corresponding to the adjacent preset gray scales so as to carry out brightness compensation on the pixel points; the preset gray level adjacent to the current gray level includes a larger preset gray level adjacent to the current gray level and a smaller preset gray level adjacent to the current gray level.

10. A brightness compensation table generating apparatus, the apparatus comprising:

The display device comprises a brightness value acquisition module, a display screen display module and a display module, wherein the brightness value acquisition module is used for acquiring a brightness value of a pixel point when a display screen displays with at least one display parameter combination, the display parameter combination comprises a specific display brightness level and a specific gray level, the display screen comprises a first display area, a second display area and a hole area, and the second display area at least partially surrounds the hole area;

The target brightness value determining module is used for determining a corresponding target brightness value of the display parameter combination according to the brightness value of the pixel point in at least part of the display areas under the display parameter combination, wherein the at least part of the display areas comprise the first display area;

and the compensation table generation module is used for constructing a brightness compensation table comprising the display parameter combination based on the corresponding target brightness value of the display parameter combination and the brightness value of the pixel point in the display screen under the display parameter combination.

11. A brightness compensation device characterized by being applied to a display apparatus configured with the brightness compensation table of any one of claims 1 to 6; the brightness compensation table comprises a brightness compensation sub-table corresponding to the pixel points in the second display area; the device comprises:

the compensation table determining module is used for determining a brightness compensation sub-table matched with the pixel points in the second display area according to the current display brightness level of the display screen;

and the brightness compensation module is used for carrying out brightness compensation on the pixel points in the second display area according to the matched brightness compensation sub-table and the current gray scale of the pixel points in the second display area.

12. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 9 when the computer program is executed.

13. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 9.