CN108962179B - Display panel brightness adjusting method and assembly and display device - Google Patents
Display panel brightness adjusting method and assembly and display device Download PDFInfo
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- CN108962179B CN108962179B CN201811092968.6A CN201811092968A CN108962179B CN 108962179 B CN108962179 B CN 108962179B CN 201811092968 A CN201811092968 A CN 201811092968A CN 108962179 B CN108962179 B CN 108962179B
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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
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- 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
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Abstract
The invention discloses a brightness adjusting method and component of a display panel and a display device, and belongs to the technical field of display. The method comprises the following steps: for each of M regions of the display panel, acquiring a theoretical brightness value of each region under the highest gray scale; inquiring the corresponding relation between the theoretical brightness value and the actual brightness value according to the theoretical brightness value of each region to obtain the actual brightness value of each region; determining a target brightness value of the display panel under the target binding point gray scale according to the highest brightness value, wherein the highest brightness value is the minimum value of the actual brightness values of the M areas; and under the target binding point gray scale, the brightness of each region is adjusted, so that the actual brightness value of each region is in the target brightness range, and the target brightness value of the display panel under the target binding point gray scale is in the target brightness range. The invention solves the problem of poor effect of adjusting the uniformity of the brightness of the display panel and improves the uniformity of the brightness of the display panel.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a method and an assembly for adjusting brightness of a display panel, and a display device.
Background
With the development of display technology, large-sized display panels are increasingly used. At present, the large-sized display panel is mainly a liquid crystal display panel. For example, an 8K liquid crystal display panel (i.e., a liquid crystal display panel with 8K pixels in the horizontal direction, and 1K is 1024) is a large-sized display panel, the resolution of the 8K liquid crystal display panel is 7680 × 4320, which is 4 times the resolution of a 4K liquid crystal display panel (i.e., a liquid crystal display panel with 4K pixels in the horizontal direction), the 8K liquid crystal display panel adopts a 10bit (chinese: bit) panel driving technology to realize the display function, and the display function has a large improvement in the aspects of color gamut, color depth, gray scale, and frame rate of pictures, and is widely applied to large-sized display products such as televisions in recent years.
Due to limitations of liquid crystal quality, precision of production equipment, manufacturing process, and uniformity of backlight brightness, large-sized liquid crystal display panels generally have a problem of displaying Mura (i.e., non-uniform brightness). In the related art, the brightness of the liquid crystal display panel is mainly adjusted by adjusting the uniformity of the backlight brightness, so that the brightness of the liquid crystal display panel is uniform.
However, the problem of displaying Mura caused by the liquid crystal display panel itself cannot be solved by adjusting the uniformity of the backlight luminance, and thus the above-mentioned effect of adjusting the uniformity of the luminance of the liquid crystal display panel is poor.
Disclosure of Invention
The invention provides a brightness adjusting method and a brightness adjusting assembly of a display panel and a display device, which can improve the uniformity of the brightness of the display panel. The technical scheme of the invention is as follows:
in a first aspect, a method for adjusting brightness of a display panel is provided, the method including:
for each of M regions of the display panel, acquiring a theoretical brightness value of each region under the highest gray scale, wherein M is an integer greater than or equal to 2;
inquiring the corresponding relation between the theoretical brightness value and the actual brightness value according to the theoretical brightness value of each region to obtain the actual brightness value of each region;
determining a target brightness value of the display panel under a target binding gray scale according to a highest brightness value, wherein the highest brightness value is the minimum value of the actual brightness values of the M areas, the target binding gray scale is any one of P binding gray scales of the display panel, and P is an integer greater than or equal to 1;
and under the target binding point gray scale, adjusting the brightness of each of the M areas to ensure that the actual brightness value of each area is within a target brightness range, and the target brightness value of the display panel under the target binding point gray scale is within the target brightness range.
Optionally, after adjusting the brightness of each of the M regions at the target binding gray level, the method further comprises:
for every two adjacent areas in the M areas, determining a target brightness value of each sub-pixel in a boundary area of every two adjacent areas by adopting a cubic interpolation method;
and under the target binding point gray scale, adjusting the brightness of each sub-pixel according to the target brightness value of each sub-pixel, so that the actual brightness value of each sub-pixel is equal to the target brightness value of each sub-pixel.
Optionally, before querying a correspondence between a theoretical brightness value and an actual brightness value according to the theoretical brightness value of each region, the method further includes:
selecting a test area on the display panel;
acquiring N actual brightness values of the test area under N different gray scales, wherein N is an integer greater than 1;
acquiring N theoretical brightness values of the test area under the N different gray scales;
and generating a corresponding relation between the theoretical brightness value and the actual brightness value according to the N actual brightness values and the N theoretical brightness values of the test area.
Optionally, before obtaining the theoretical brightness value of each region at the highest gray level, the method further includes:
dividing the display panel into M regions;
lighting the display panel with the highest gray scale;
wherein the dividing the display panel into M regions comprises:
equally dividing the display panel into M regions; alternatively, the first and second electrodes may be,
the display panel is divided into M areas, the M areas comprise at least one of a first area and a second area, the first area comprises display dark spots and does not comprise display bright spots, and the second area comprises display bright spots and does not comprise display dark spots.
Optionally, the determining, according to the highest brightness value, a target brightness value of the display panel at a target binding gray scale includes: and determining the target brightness value of the display panel under the target binding point gray scale through a target gamma curve according to the highest brightness value.
In a second aspect, there is provided a brightness adjustment assembly of a display panel, the assembly comprising:
the first acquisition module is used for acquiring a theoretical brightness value of each area under the highest gray scale for each area in M areas of the display panel, wherein M is an integer greater than or equal to 2;
the query module is used for querying the corresponding relation between the theoretical brightness value and the actual brightness value according to the theoretical brightness value of each region to obtain the actual brightness value of each region;
a first determining module, configured to determine a target brightness value of the display panel under a target binding gray scale according to a highest brightness value, where the highest brightness value is a minimum value of actual brightness values of the M regions, the target binding gray scale is any one of P binding gray scales of the display panel, and P is an integer greater than or equal to 1;
a first adjusting module, configured to adjust brightness of each of the M regions under the target binding point gray scale, so that an actual brightness value of each region is within a target brightness range, and a target brightness value of the display panel under the target binding point gray scale is within the target brightness range.
Optionally, the assembly further comprises:
a second determining module, configured to determine, for every two neighboring areas in the M areas, a target luminance value of each sub-pixel in a boundary area of the every two neighboring areas by using a cubic interpolation method;
and a second adjusting module, configured to adjust, according to the target luminance value of each sub-pixel, the luminance of each sub-pixel under the target binding point gray scale, so that the actual luminance value of each sub-pixel is equal to the target luminance value of each sub-pixel.
Optionally, the assembly further comprises:
the selection module is used for selecting a test area on the display panel;
the second acquisition module is used for acquiring N actual brightness values of the test area under N different gray scales, wherein N is an integer greater than 1;
the third acquisition module is used for acquiring N theoretical brightness values of the test area under the N different gray scales;
and the generating module is used for generating the corresponding relation between the theoretical brightness value and the actual brightness value according to the N actual brightness values and the N theoretical brightness values of the test area.
Optionally, the assembly further comprises:
a dividing module for dividing the display panel into M regions;
the lighting module is used for lighting the display panel with the highest gray scale;
wherein the dividing module is configured to:
equally dividing the display panel into M regions; alternatively, the first and second electrodes may be,
the display panel is divided into M areas, the M areas comprise at least one of a first area and a second area, the first area comprises display dark spots and does not comprise display bright spots, and the second area comprises display bright spots and does not comprise display dark spots.
Optionally, the first determining module is configured to determine, according to the highest brightness value, a target brightness value of the display panel under a target binding gray scale through a target gamma curve.
In a third aspect, a display device is provided, which includes a display panel, and the brightness adjustment component of the display panel of the second aspect or any optional manner of the second aspect.
In a fourth aspect, a storage medium is provided, where instructions are stored, and when the instructions are executed, the instructions are used to implement the brightness adjustment method for the display panel according to the first aspect or any optional manner of the first aspect
The technical scheme provided by the invention has the beneficial effects that:
according to the brightness adjusting method, the brightness adjusting component and the display device of the display panel, the theoretical brightness value of each area of the display panel under the highest gray scale is obtained, the corresponding relation between the theoretical brightness value and the actual brightness value is inquired according to the theoretical brightness value of each area, the actual brightness value of each area is obtained, the target brightness value of the display panel under the target binding point gray scale is determined according to the highest brightness value, the brightness of each area is adjusted under the target binding point gray scale, the actual brightness value of each area is in the target brightness range, and the target brightness value of the display panel under the target binding point gray scale is in the target brightness range. Therefore, the method can solve the problem of Mura display caused by the display panel, solve the problem of poor effect of adjusting the uniformity of the brightness of the display panel and improve the uniformity of the brightness of the display panel.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for adjusting brightness of a display panel according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for adjusting brightness of a display panel according to another embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another area division for a display panel according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating an exemplary method for determining a target luminance value of a sub-pixel of a boundary region according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a method for determining a target luminance value of a sub-pixel of another boundary region according to an embodiment of the present invention;
fig. 7 is a block diagram of a brightness adjustment assembly of a display panel according to an embodiment of the present invention;
fig. 8 is a block diagram of a brightness adjustment assembly of another display panel according to an embodiment of the present invention.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In recent years, large-sized display panels are widely used in the display field, and the large-sized display panels are mainly liquid crystal display panels, for example, 8K liquid crystal display panels are large-sized display panels. However, the large-sized display panel faces a great challenge, for example, due to the limitations of the quality of the liquid crystal, the precision of the production equipment, the manufacturing process, and the like, the large-sized liquid crystal display panel is likely to have a phenomenon of liquid crystal maldistribution, which causes the large-sized liquid crystal display panel to easily display Mura; in addition, the large-sized liquid crystal display panel usually needs a large-sized backlight source to support, and the uniformity of the brightness of the large-sized backlight source is generally difficult to meet the requirement, which further causes the display Mura problem of the large-sized liquid crystal display panel. In order to solve the problem of displaying Mura of a large-sized liquid crystal display panel, most of research is currently conducted from a backlight source, aiming at improving the uniformity of the brightness of the backlight source to reduce the displaying Mura of the liquid crystal display panel, but the problem of displaying Mura caused by the liquid crystal display panel cannot be solved.
The invention provides a brightness adjusting method and a brightness adjusting component of a display panel, and a display device, which can solve the problem of displaying Mura caused by a liquid crystal display panel. The brightness adjusting method of the display panel provided by the invention can be executed by the brightness adjusting component of the display panel, and the brightness adjusting component of the display panel can be a component in a driving chip of the display panel. The invention is described in detail with reference to the following examples.
Referring to fig. 1, a flowchart of a method for adjusting brightness of a display panel according to an embodiment of the present invention is shown, and referring to fig. 1, the method includes:
in step 101, for each of M regions of the display panel, a theoretical luminance value at the highest gray level of each region is acquired, where M is an integer greater than or equal to 2.
In step 102, according to the theoretical brightness value of each region, a corresponding relationship between the theoretical brightness value and the actual brightness value is queried to obtain an actual brightness value of each region.
In step 103, a target brightness value of the display panel at the target binding gray level is determined according to the highest brightness value, which is the minimum value of the actual brightness values of the M regions.
The target binding gray scale is any one of P binding gray scales of the display panel, and P is an integer greater than or equal to 1.
In step 104, under the target binding gray scale, the brightness of each of the M regions is adjusted, so that the actual brightness value of each region is within the target brightness range, and the target brightness value of the display panel under the target binding gray scale is within the target brightness range.
In summary, according to the brightness adjustment method of the display panel provided in the embodiment of the present invention, since the theoretical brightness value of each region of the display panel under the highest gray scale is obtained, the corresponding relationship between the theoretical brightness value and the actual brightness value is queried according to the theoretical brightness value of each region, the actual brightness value of each region is obtained, the target brightness value of the display panel under the target binding gray scale is determined according to the highest brightness value, and the brightness of each region is adjusted under the target binding gray scale, so that the actual brightness value of each region is within the target brightness range, and the target brightness value of the display panel under the target binding gray scale is within the target brightness range. Therefore, the method can solve the problem of Mura display caused by the display panel, solve the problem of poor effect of adjusting the uniformity of the brightness of the display panel and improve the uniformity of the brightness of the display panel.
Optionally, after step 104, the method further comprises:
for every two adjacent areas in the M areas, determining the target brightness value of each sub-pixel in the boundary area of every two adjacent areas by adopting a cubic interpolation method;
and under the target binding point gray scale, adjusting the brightness of each sub-pixel according to the target brightness value of each sub-pixel, so that the actual brightness value of each sub-pixel is equal to the target brightness value of each sub-pixel.
Optionally, before step 102, the method further comprises:
selecting a test area on the display panel;
acquiring N actual brightness values of a test area under N different gray scales, wherein N is an integer greater than 1;
acquiring N theoretical brightness values of a test area under N different gray scales;
and generating a corresponding relation between the theoretical brightness value and the actual brightness value according to the N actual brightness values and the N theoretical brightness values of the test area.
Optionally, before step 101, the method further comprises:
dividing the display panel into M regions;
lighting the display panel with the highest gray scale;
wherein, divide the display panel into M regions, include:
dividing the display panel into M areas on average; alternatively, the first and second electrodes may be,
the display panel is divided into M areas, the M areas comprise at least one of a first area and a second area, the first area comprises the display dark spots and does not comprise the display bright spots, and the second area comprises the display bright spots and does not comprise the display dark spots.
Optionally, step 103 comprises: and determining the target brightness value of the display panel under the target binding point gray scale through the target gamma curve according to the highest brightness value.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
Referring to fig. 2, a flowchart of another method for adjusting brightness of a display panel according to an embodiment of the present invention is shown, and referring to fig. 2, the method includes:
in step 201, a test area is selected on the display panel.
The display panel may be a liquid crystal display panel or an organic light-Emitting Diode (OLED) display panel, and the liquid crystal display panel may be an 8K liquid crystal display panel.
Optionally, the display panel may be lit first, and then a test area is selected on the display panel according to the brightness of the display panel, where the test area is an area with relatively uniform brightness on the display panel, and the test area may be a liquid crystal dot matrix area.
In step 202, N actual luminance values of the test area at N different gray levels are obtained, where N is an integer greater than 1.
In the embodiment of the invention, the brightness of the test area can be measured under N different gray scales by adopting the brightness measuring equipment, so that N actual brightness values of the test area under N different gray scales are obtained. Wherein the brightness measuring device may be a color analyzer, which may be a CA310 device.
Optionally, after selecting the test area, the CA310 device may be set in the test area, then the display panel is sequentially lit at N different gray scales, and after the display panel is lit at each gray scale, the actual brightness value of the test area measured by the CA310 device is read, so as to obtain N actual brightness values of the test area at N different gray scales.
In step 203, N theoretical luminance values of the test area at N different gray levels are obtained.
Optionally, the display panel may be sequentially lit by N different gray scales, after the display panel is lit by each gray scale, an image of the test area is obtained by using the image pickup device, an image corresponding to each gray scale is obtained (the image corresponding to each gray scale is also the image of the test area obtained by using the image pickup device after the display panel is lit by each gray scale), then, the image corresponding to each gray scale is processed by using an image processing technique, so as to obtain a brightness value of the image corresponding to each gray scale, and the brightness value of the image corresponding to each gray scale is also a theoretical brightness value of the test area under each gray scale, so that N theoretical brightness values may be obtained. The image pickup device may be a camera dedicated to testing the display panel.
The image of the test area comprises a plurality of sub-pixel images, the sub-pixel images correspond to the sub-pixels one by one, and each sub-pixel image is the image of the corresponding sub-pixel. Processing the image corresponding to each gray scale through an image processing technique, and obtaining the brightness value of the image corresponding to each gray scale may include: processing the image corresponding to each gray scale through an image processing technology to obtain the brightness value of each sub-pixel image in the image corresponding to each gray scale, and taking the average value of the brightness values of all sub-pixel images in the image corresponding to each gray scale as the brightness value of the image corresponding to each gray scale. For example, assuming that the test region includes 10000 sub-pixels, an image corresponding to each gray scale includes 10000 sub-pixel images, taking gray scale 1 as an example, an image corresponding to gray scale 1 includes 10000 sub-pixel images, processing the image corresponding to gray scale 1 through an image processing technology to obtain luminance values of the 10000 sub-pixel images in the image corresponding to gray scale 1, and taking an average value of the luminance values of the 10000 sub-pixel images as a luminance value of the image corresponding to gray scale 1. The determination process of the brightness values of the images corresponding to other gray scales is similar to that, and the embodiment of the present invention is not described herein again.
It should be noted that the N different gray levels in the step 202 and the N different gray levels in the step 203 are the same N gray levels, that is, when the N different gray levels in the step 202 are gray levels 1 to N, the N different gray levels in the step 203 are also gray levels 1 to N. In addition, for convenience of description, step 202 and step 203 are described in a sequential manner in the embodiment of the present invention, in practical applications, step 202 and step 203 may be executed simultaneously, that is, after the display panel is lit up by each gray scale, the actual brightness value and the real brightness value of the test area are respectively obtained. Of course, step 202 and step 203 may also be performed in another sequence, that is, the display panel is sequentially lighted by N different gray scales, after the display panel is lighted by each gray scale, the theoretical brightness value of the test area is obtained, then the display panel is sequentially lighted by N different gray scales, and after the display panel is lighted by each gray scale, the actual brightness value of the test area is obtained.
In step 204, a corresponding relationship between the theoretical luminance value and the actual luminance value is generated according to the N actual luminance values and the N theoretical luminance values of the test region.
Optionally, curve fitting may be performed on the N actual brightness values and the N theoretical brightness values of the test region to obtain a corresponding relationship between the theoretical brightness values and the actual brightness values, where the corresponding relationship is embodied in a curve form. In practical applications, the corresponding relationship may also be embodied in the form of a table. Assuming that N different gray scales are gray scales 1-N and N actual brightness values are R1～RNN theoretical luminance values of E1～ENThen, the corresponding relationship between the theoretical luminance value and the actual luminance value can be shown in table 1 below:
TABLE 1
| Theoretical brightness value | Actual brightness value |
| E1 | R1 |
| E2 | R2 |
| E3 | R3 |
| ... | ... |
| EN | RN |
Wherein E is1Representing the theoretical brightness value, R, of the test area when the display panel is lit with a gray level of 11Representing the actual brightness value, E, of the test area when the display panel is lit at gray level 12Representing the theoretical brightness value, R, of the test area when the display panel is lit at gray level 22Representing the actual brightness value of the test area when the display panel is lit at gray level 2, and so on.
It should be noted that the display panel has a plurality of gray scales, and the N different gray scales may be N gray scales obtained by sampling the plurality of gray scales of the display panel, that is, the N different gray scales are a part of the plurality of gray scales of the display panel, so that the calculation amount can be reduced. For example, the 8K lcd panel adopts 10bit driving technology to realize the display function, and the 8K lcd panel has 1024 (1024-2) of 0 to 1023 in total10) For 8K liquid crystal display panel, N sampled gray scales can be gray scale 0, gray scale 2, gray scale 4 and gray scale 622, which are 512 gray levels, so that the calculation amount can be reduced and the sampling reasonableness can be ensured. Of course, other sampling methods may be adopted to sample 1024 gray levels of the 8K liquid crystal display panel, which is not limited in the embodiment of the present invention.
In step 205, the display panel is divided into M regions, where M is an integer greater than or equal to 2.
Alternatively, the display panel may be first lit, and then the display panel may be divided into M regions according to the brightness of the display panel. Wherein dividing the display panel into M regions may include the following two cases:
the first condition is as follows: the display panel is divided into M regions on average.
When the brightness of the display panel is uniform, the display panel can be divided into M regions on average. For example, please refer to fig. 3, which illustrates a schematic diagram of dividing a display panel according to an embodiment of the present invention, wherein the luminance of the display panel is relatively uniform, so that the display panel is divided into 8 regions on average.
Case two: the display panel is divided into M areas, the M areas comprise at least one of a first area and a second area, the first area comprises the display dark spots and does not comprise the display bright spots, and the second area comprises the display bright spots and does not comprise the display dark spots.
When the uniformity of the luminance of the display panel is poor, for example, when the display panel has a display dark spot and/or a display bright spot, the display panel may be divided into M areas such that the M areas include at least one of a first area including the display dark spot and not including the display bright spot and a second area including the display bright spot and not including the display dark spot. For example, please refer to fig. 4, which shows another schematic diagram of dividing a display panel according to an embodiment of the present invention, where the display panel has a dark display spot and a bright display spot, and therefore the display panel is divided into 6 areas, where the 6 areas include a first area and a second area, the first area is an area 4, and the second area is an area 5. It should be noted that fig. 4 is merely an example, and in practical applications, the areas on the display panel that do not have the dark spots and the bright spots may be divided equally. In addition, when the display dark spots or the display bright spots on the display panel are dense, one first area may include a plurality of display dark spots and no display bright spots, and one second area may include a plurality of display bright spots and no display dark spots, which is not limited in the embodiment of the present invention.
In step 206, the display panel is lit at the highest gray level.
Alternatively, power may be applied to the display panel to set the gray scale of the display panel to the highest gray scale, thereby lighting the display panel at the highest gray scale. Illustratively, the highest gray scale of the 8K LCD panel is the gray scale 1023, so the 8K LCD panel is lighted up with the gray scale 1023.
In step 207, for each of the M regions of the display panel, the theoretical luminance value at the highest gray level for each region is obtained.
Optionally, in the process that the display panel displays at the highest gray scale, an image of each of the M regions is acquired by using an imaging device, and then the image of each region is processed by using an image processing technique to obtain a brightness value of the image of each region, where the brightness value of the image of each region is also a theoretical brightness value of each region at the highest gray scale. Each of the M regions includes a plurality of sub-pixels, so that the image of each region includes a plurality of sub-pixel images, the plurality of sub-pixel images in the image of each region correspond to the plurality of sub-pixels in each region one to one, and each sub-pixel image is an image of a corresponding sub-pixel. Processing the image of each region by an image processing technique to obtain a brightness value of the image of each region may include: and processing the image of each region by an image processing technology to obtain the brightness value of each sub-pixel image in the image of each region, and taking the average value of the brightness values of all sub-pixel images in the image of each region as the brightness value of the image of each region.
For example, taking the area division shown in fig. 3 as an example, assuming that the area 1 includes 3000 sub-pixels, in the process that the display panel displays at the highest gray scale, an image capturing device is used to acquire an image of the area 1, the image of the area 1 includes 3000 sub-pixel images, the image of the area 1 is processed by an image processing technique to obtain the luminance values of the 3000 sub-pixel images in the image of the area 1, an average value of the luminance values of the 3000 sub-pixel images is used as the luminance value of the image of the area 1, and the luminance value of the image of the area 1 is the theoretical luminance value of the area 1 at the highest gray scale. The process of acquiring the theoretical luminance values of the regions 2 to 8 at the highest gray level is similar to that of the above, and the process of acquiring the theoretical luminance values of the regions at the highest gray level shown in fig. 4 is also similar to that of the above, and the embodiment of the present invention is not described herein again.
In step 208, according to the theoretical brightness value of each region, the corresponding relationship between the theoretical brightness value and the actual brightness value is queried to obtain the actual brightness value of each region.
Optionally, according to the theoretical brightness value of each of the M regions, the correspondence shown in table 1 is looked up to obtain an actual brightness value corresponding to each region, and the actual brightness value corresponding to each region obtained through the query is used as the actual brightness value of each region.
For example, still taking fig. 3 as an example, assume that the theoretical brightness value of the region 1 obtained in step 207 at the highest gray level is E2Then according to the theoretical brightness value E of the region 1 at the highest gray level2The theoretical brightness value E can be determined by looking up the corresponding relation shown in Table 12Corresponding actual brightness value R2Thus, the actual luminance value R2As the actual luminance value of region 1. The determination process of the actual brightness values of the regions 2 to 8 at the highest gray level is similar to that of the actual brightness values of the regions at the highest gray level shown in fig. 4, and the details of the embodiment of the present invention are not repeated herein.
In step 209, a target brightness value of the display panel at the target binding gray level is determined according to the highest brightness value, which is the minimum value of the actual brightness values of the M regions.
In the embodiment of the invention, the display panel is provided with P binding gray scales, the target binding gray scale is any one of the P binding gray scales, P is an integer greater than or equal to 1, the binding gray scale is an adjustable gray scale corresponding to a driving chip of the display panel, and the binding gray scale can be called gray scale binding.
In the embodiment of the present invention, the highest brightness value may be determined first, and then the target brightness value of the display panel at the target binding gray scale may be determined according to the highest brightness value. Alternatively, the actual brightness values of the M regions may be compared, a minimum value of the actual brightness values of the M regions may be determined, and the minimum value of the actual brightness values of the M regions may be determined as a highest brightness value.
Optionally, determining the target brightness value of the display panel at the target binding point gray scale according to the highest brightness value comprises: and determining the target brightness value of the display panel under the target binding point gray scale through a target Gamma curve according to the highest brightness value. In the embodiment of the present invention, the target gamma curve may be a gamma2.2 curve (i.e., a gamma curve having a gamma value equal to 2.2). The gamma curve may be expressed as: (L)B/LH)γ＝RB/RHWherein L isBRepresenting binding gray level, LHRepresenting the highest gray level, RBRepresenting a target brightness value, RHRepresenting the highest brightness value and gamma, for example, the gamma2.2 curve may be expressed as (L)B/LH)2.2＝RB/RHThe expression of the gamma2.2 curve of the 8K liquid crystal display panel may be (L)B/1023)2.2＝RB/RH. From this, it can be seen that L is determined in the case of the display panelHFor a known number, the target gamma curve has only a binding point gray level L in its expressionBTarget luminance value RBAnd the highest luminance value RHThe target binding gray scale and the highest brightness value can be substituted into the target gamma curve to obtain the target brightness value of the display panel under the target binding gray scale.
In step 210, under the target binding gray scale, the brightness of each of the M regions is adjusted, so that the actual brightness value of each region is within the target brightness range, and the target brightness value of the display panel under the target binding gray scale is within the target brightness range.
Alternatively, at the target binding gray level, the gamma curve of each of the M regions may be adjusted by adjusting the gamma voltage of each of the M regions such that the actual brightness value of each region is within the target brightness range. Alternatively, the actual brightness value of each region may be determined while adjusting the gamma voltage of each region until the actual brightness value of each region is within the target brightness range, thereby completing the adjustment of the brightness of each region. The target brightness range is a brightness range corresponding to the target binding point gray scale, the target brightness range is determined under the target binding point gray scale, one end brightness value of two end brightness values of the target brightness range is a target brightness value of the display panel under the target binding point gray scale determined through a Gamma2.2 curve according to a highest brightness value, and the other end brightness value is a target brightness value of the display panel under the target binding point gray scale determined through a Gamma2.4 curve (namely a Gamma curve with a Gamma value equal to 2.4) according to the highest brightness value. Wherein, the corresponding brightness ranges of different binding point gray scales can be different.
It should be noted that, since the highest gray level lighting display panel is taken as an example in steps 206 to 208, when the highest gray level lighting display panel is used, the luminance of all the sub-pixels of the display panel is the maximum luminance, and the luminance of the sub-pixels cannot be increased by increasing the gray level voltage, step 209 and step 210 adjust the luminance of the display panel with the minimum value of the actual luminance values of the M regions as a reference. In addition, steps 209 to 210 describe a process of adjusting the brightness of each region of the display panel under the target binding gray scale, and in actual implementation, the brightness of each region of the display panel needs to be adjusted under each binding gray scale of the P binding gray scales, and the process of adjusting the brightness of each region of the display panel under any binding gray scale may refer to steps 209 and 210, which is not described herein again in the embodiments of the present invention.
It should be further noted that, after the brightness of the M regions is adjusted, the difference between the brightness of adjacent regions in the M regions may be relatively large, so that the display panel has a significant gradient change of brightness, which affects the display effect. Therefore, the luminance of each sub-pixel in the boundary region of every two adjacent regions can be adjusted by adopting a cubic interpolation method, so that the luminance of the adjacent regions is slowly and smoothly transited in the boundary region of the adjacent regions. Please refer to steps 211 to 212 below.
In step 211, for every two adjacent regions of the M regions, a cubic interpolation is used to determine a target luminance value of each sub-pixel in a boundary region of every two adjacent regions.
In the embodiment of the present invention, a target luminance value of each sub-pixel in a boundary region of every two adjacent regions may be determined by a cubic interpolation method with a Block (Block) as a unit, where the Block size (Block) may be i × j (i.e., the Block includes i × j sub-pixels), i represents the number of sub-pixels of the Block in the horizontal direction, and j represents the number of sub-pixels of the Block in the vertical direction. Wherein each sub-pixel may correspond to a block position, and determining the target luminance value of each sub-pixel in the boundary region of every two adjacent regions by using a cubic interpolation method with a block as a unit may include: and when the block is positioned at the block position corresponding to each sub-pixel, performing weighted interpolation on the luminance of i-j sub-pixels in the block to obtain a target luminance value of each sub-pixel. Such an operation is performed for each sub-pixel in the blend area, thereby determining the target luminance values of all sub-pixels in the blend area.
For example, referring to fig. 5 and fig. 6, which respectively show schematic diagrams of determining a target luminance value of each sub-pixel in a boundary region by using a cubic interpolation method according to an embodiment of the present invention, referring to fig. 5 and fig. 6, the boundary region Q is composed of a region Q1 and a region Q2, each small square represents a sub-pixel, small squares filled with oblique lines represent sub-pixels at a boundary position of an adjacent region, small white squares represent sub-pixels in the boundary region Q located near the boundary position, and a block size is 4 × 4.
Referring to fig. 5, the block position corresponding to the sub-pixel 25 is shown as position S in fig. 5, and at this time, the block includes 16 sub-pixels, i.e., sub-pixels 17 to 20, 25 to 28, 33 to 36, and 41 to 44, so that the luminance of the 16 sub-pixels is weighted-interpolated to obtain the target luminance value of the sub-pixel 25; then, the block is moved to the right by one unit (in this embodiment, the sub-pixels are taken as the units for explanation), so as to obtain the block position (not shown in fig. 5) corresponding to the sub-pixel 26, at this time, the block includes 16 sub-pixels 18 to 21, 26 to 29, 34 to 37, and 42 to 45, so that the luminance of the 16 sub-pixels is weighted-interpolated to obtain the target luminance value of the sub-pixel 26; and so on until the block moves to the position U and the target brightness value of the sub-pixel 28 is determined, and by this, the determination of the target brightness values of all the sub-pixels in the row of the sub-pixel 25 in the region Q1 is completed. Thereafter, the block is moved vertically downward by one unit, and the target luminance values for the sub-pixels in the row next to the row of sub-pixels 25 in region Q1 are determined, and so on, until the target luminance values for all the sub-pixels in region Q1 are determined.
Referring to fig. 6, the block position corresponding to the sub-pixel 32 is shown as the position V in fig. 6, and at this time, the block includes 16 sub-pixels, i.e., sub-pixels 21 to 24, 29 to 32, 37 to 40, and 45 to 48, so that the luminance of the 16 sub-pixels is weighted-interpolated to obtain the target luminance value of the sub-pixel 32; then, moving the block to the left by one unit along the horizontal direction to obtain a block position (not shown in fig. 6) corresponding to the sub-pixel 31, where the block includes 16 sub-pixels, i.e., sub-pixels 20 to 23, 28 to 31, 36 to 39, and 44 to 47, and thus performing weighted interpolation on the luminance of the 16 sub-pixels to obtain a target luminance value of the sub-pixel 31; and so on until the block moves to the position W and the target brightness value of the sub-pixel 29 is determined, and by this, the determination of the target brightness values of all the sub-pixels in the row of the sub-pixel 32 in the region Q2 is completed. Thereafter, the block is moved vertically downward by one unit, and the target luminance values for the sub-pixels in the row next to the row of sub-pixels 32 in region Q2 are determined, and so on, until the target luminance values for all the sub-pixels in region Q2 are determined.
In step 212, at the target binding gray level, the brightness of each sub-pixel is adjusted according to the target brightness value of each sub-pixel, so that the actual brightness value of each sub-pixel is equal to the target brightness value of each sub-pixel.
Alternatively, at the target binding gray level, the voltage applied to each sub-pixel may be adjusted according to the target luminance value of each sub-pixel to adjust the luminance of each sub-pixel such that the actual luminance value of each sub-pixel is equal to the target luminance value of each sub-pixel. During the adjustment, the actual brightness value of the sub-pixel may be determined while adjusting until the actual brightness value of the sub-pixel is equal to the target brightness value of the sub-pixel.
It should be noted that, under the display with the adjusted precision, the actual luminance value of the sub-pixel may not be completely equal to the target luminance value of the sub-pixel, and therefore, in the embodiment of the present invention, the actual luminance value of the sub-pixel being equal to the target luminance value of the sub-pixel means: the actual brightness value of the sub-pixel is equal to the target brightness value of the sub-pixel, or the absolute value of the difference between the actual brightness value of the sub-pixel and the target brightness value of the sub-pixel is smaller than a preset threshold.
It should be further noted that, in the embodiment of the present invention, after the brightness adjustment method for the display panel, when it is determined that the actual brightness value of each region is within the target brightness range, the gamma voltage of each region, and when the actual brightness value of each sub-pixel in the boundary region is equal to the target brightness value of each sub-pixel, the voltage applied to each sub-pixel may be stored, and the corresponding gamma voltage and the voltage applied to the sub-pixel are stored in the driving chip, so that during the actual application of the display panel, the driving chip may power up each region according to the stored gamma voltage, and power up each sub-pixel according to the stored voltage on each sub-pixel, thereby ensuring the uniformity of the brightness of the display panel.
In summary, according to the brightness adjustment method of the display panel provided in the embodiment of the present invention, since the theoretical brightness value of each region of the display panel under the highest gray scale is obtained, the corresponding relationship between the theoretical brightness value and the actual brightness value is queried according to the theoretical brightness value of each region, the actual brightness value of each region is obtained, the target brightness value of the display panel under the target binding gray scale is determined according to the highest brightness value, and the brightness of each region is adjusted under the target binding gray scale, so that the actual brightness value of each region is within the target brightness range, and the target brightness value of the display panel under the target binding gray scale is within the target brightness range. Therefore, the method can solve the problem of Mura display caused by the display panel, solve the problem of poor effect of adjusting the uniformity of the brightness of the display panel and improve the uniformity of the brightness of the display panel. The brightness adjusting method of the display panel provided by the embodiment of the invention can solve the problems of uneven backlight brightness and uneven brightness of the display panel caused by the manufacturing process of the display panel and the like, and greatly improves the uniformity of the brightness of the display panel.
It should be noted that, the sequence of the steps of the method for adjusting the brightness of the display panel according to the embodiment of the present invention may be appropriately adjusted, and the steps may also be increased or decreased according to the circumstances.
The following are embodiments of the apparatus of the present invention that may be used to perform embodiments of the method of the present invention. For details which are not disclosed in the embodiments of the apparatus of the present invention, reference is made to the embodiments of the method of the present invention.
Referring to fig. 7, a block diagram of a brightness adjustment assembly 700 of a display panel according to an embodiment of the present invention is shown, where the assembly 700 is used to perform the method according to the embodiment shown in fig. 1 or fig. 2, and the assembly 700 may be a component in a driving chip of a display device. Referring to fig. 7, the assembly 700 may include, but is not limited to:
a first obtaining module 701, configured to obtain, for each of M regions of a display panel, a theoretical luminance value of each region at a highest gray scale, where M is an integer greater than or equal to 2;
a query module 702, configured to query a correspondence between a theoretical brightness value and an actual brightness value according to the theoretical brightness value of each region, so as to obtain an actual brightness value of each region;
a first determining module 703, configured to determine, according to a highest luminance value, a target luminance value of the display panel under a target binding gray scale, where the highest luminance value is a minimum value of actual luminance values of M regions, the target binding gray scale is any one of P binding gray scales of the display panel, and P is an integer greater than or equal to 1;
a first adjusting module 704, configured to adjust the brightness of each of the M regions under the target binding point gray scale, so that the actual brightness value of each region is within the target brightness range, and the target brightness value of the display panel under the target binding point gray scale is within the target brightness range.
In summary, in the brightness adjustment assembly for a display panel provided in the embodiment of the present invention, the first obtaining module obtains the theoretical brightness value of each region of the display panel at the highest gray scale, the querying module queries the corresponding relationship between the theoretical brightness value and the actual brightness value according to the theoretical brightness value of each region, so as to obtain the actual brightness value of each region, the first determining module determines the target brightness value of the display panel at the target binding point gray scale according to the highest brightness value, and the first adjusting module adjusts the brightness of each region under the target binding point gray scale, so that the actual brightness value of each region is within the target brightness range, and the target brightness value of the display panel under the target binding point gray scale is within the target brightness range. Therefore, the brightness adjusting assembly of the display panel can solve the problem of displaying Mura caused by the display panel, solve the problem of poor effect of adjusting the uniformity of the brightness of the display panel in the related art, and improve the uniformity of the brightness of the display panel.
Further, referring to fig. 8, which shows a block diagram of another brightness adjustment assembly 700 of a display panel according to an embodiment of the present invention, on the basis of fig. 7, the assembly 700 further includes:
a second determining module 705, configured to determine, for every two adjacent regions in the M regions, a target luminance value of each sub-pixel in a boundary region between every two adjacent regions by using a cubic interpolation method;
the second adjusting module 706 is configured to adjust the brightness of each sub-pixel according to the target brightness value of each sub-pixel under the target binding point gray scale, so that the actual brightness value of each sub-pixel is equal to the target brightness value of each sub-pixel.
Further, with continued reference to fig. 8, the assembly 700 further includes:
a selecting module 707, configured to select a test area on the display panel;
a second obtaining module 708, configured to obtain N actual luminance values of the test area under N different gray scales, where N is an integer greater than 1;
a third obtaining module 709, configured to obtain N theoretical brightness values of the test area under N different gray scales;
the generating module 710 is configured to generate a corresponding relationship between the theoretical brightness value and the actual brightness value according to the N actual brightness values and the N theoretical brightness values of the test region.
Further, with continued reference to fig. 8, the assembly 700 further includes:
a dividing module 711 for dividing the display panel into M regions;
a lighting module 712, configured to light the display panel with the highest gray scale;
the dividing module 711 is configured to:
dividing the display panel into M areas on average; alternatively, the first and second electrodes may be,
the display panel is divided into M areas, the M areas comprise at least one of a first area and a second area, the first area comprises the display dark spots and does not comprise the display bright spots, and the second area comprises the display bright spots and does not comprise the display dark spots.
Optionally, the first determining module 703 is configured to determine, according to the highest luminance value, a target luminance value of the display panel under the target binding point gray scale through the target gamma curve.
In summary, in the brightness adjustment assembly for a display panel provided in the embodiment of the present invention, the first obtaining module obtains the theoretical brightness value of each region of the display panel at the highest gray scale, the querying module queries the corresponding relationship between the theoretical brightness value and the actual brightness value according to the theoretical brightness value of each region, so as to obtain the actual brightness value of each region, the first determining module determines the target brightness value of the display panel at the target binding point gray scale according to the highest brightness value, and the first adjusting module adjusts the brightness of each region under the target binding point gray scale, so that the actual brightness value of each region is within the target brightness range, and the target brightness value of the display panel under the target binding point gray scale is within the target brightness range. Therefore, the brightness adjusting assembly of the display panel can solve the problem of displaying Mura caused by the display panel, solve the problem of poor effect of adjusting the uniformity of the brightness of the display panel and improve the uniformity of the brightness of the display panel.
The embodiment of the invention also provides a display device, which comprises a display panel and the brightness adjusting assembly 700 of the display panel provided by the embodiment. The display panel can be a liquid crystal display panel and can be an 8K liquid crystal display panel, and the display device can be any display product or component such as a television, a display, a desktop computer, a mobile phone, a tablet computer, a notebook computer, a digital photo frame or a navigator.
The embodiment of the present invention further provides a storage medium, where instructions are stored in the storage medium, and when the instructions are executed, the storage medium is used to implement the brightness adjustment method for the display panel provided in the foregoing embodiment.
The term "and/or" in the present invention is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The invention is not to be considered as limited to the particular embodiments shown and described, but is to be understood that various modifications, equivalents, improvements and the like can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A method for adjusting brightness of a display panel, the method comprising:
for each of M regions of the display panel, acquiring a theoretical brightness value of each region under the highest gray scale, wherein M is an integer greater than or equal to 2;
inquiring the corresponding relation between the theoretical brightness value and the actual brightness value according to the theoretical brightness value of each region to obtain the actual brightness value of each region;
determining a target brightness value of the display panel under a target binding gray scale according to a highest brightness value, wherein the highest brightness value is the minimum value of the actual brightness values of the M areas, the target binding gray scale is any one of P binding gray scales of the display panel, and P is an integer greater than or equal to 1;
under the target binding point gray scale, adjusting the brightness of each of the M areas to enable the actual brightness value of each area to be within a target brightness range, and enabling the target brightness value of the display panel under the target binding point gray scale to be within the target brightness range;
for every two adjacent areas in the M areas, determining a target brightness value of each sub-pixel in a boundary area of every two adjacent areas by adopting a cubic interpolation method;
and under the target binding point gray scale, adjusting the brightness of each sub-pixel according to the target brightness value of each sub-pixel, so that the actual brightness value of each sub-pixel is equal to the target brightness value of each sub-pixel.
2. The method according to claim 1, wherein before querying a correspondence between a theoretical luminance value and an actual luminance value according to a theoretical luminance value of each region, the method further comprises:
selecting a test area on the display panel;
acquiring N actual brightness values of the test area under N different gray scales, wherein N is an integer greater than 1;
acquiring N theoretical brightness values of the test area under the N different gray scales;
and generating a corresponding relation between the theoretical brightness value and the actual brightness value according to the N actual brightness values and the N theoretical brightness values of the test area.
3. The method of claim 1, wherein prior to obtaining theoretical luminance values for each of the regions at a highest gray level, the method further comprises:
dividing the display panel into M regions;
lighting the display panel with the highest gray scale;
wherein the dividing the display panel into M regions comprises:
equally dividing the display panel into M regions; alternatively, the first and second electrodes may be,
the display panel is divided into M areas, the M areas comprise at least one of a first area and a second area, the first area comprises display dark spots and does not comprise display bright spots, and the second area comprises display bright spots and does not comprise display dark spots.
4. The method according to any one of claims 1 to 3, wherein said determining a target brightness value of said display panel at a target binding gray level according to a highest brightness value comprises:
and determining the target brightness value of the display panel under the target binding point gray scale through a target gamma curve according to the highest brightness value.
5. A brightness adjustment assembly for a display panel, said assembly comprising:
the first acquisition module is used for acquiring a theoretical brightness value of each area under the highest gray scale for each area in M areas of the display panel, wherein M is an integer greater than or equal to 2;
the query module is used for querying the corresponding relation between the theoretical brightness value and the actual brightness value according to the theoretical brightness value of each region to obtain the actual brightness value of each region;
a first determining module, configured to determine a target brightness value of the display panel under a target binding gray scale according to a highest brightness value, where the highest brightness value is a minimum value of actual brightness values of the M regions, the target binding gray scale is any one of P binding gray scales of the display panel, and P is an integer greater than or equal to 1;
a first adjusting module, configured to adjust brightness of each of the M regions under the target tie point gray scale, so that an actual brightness value of each region is within a target brightness range, and a target brightness value of the display panel under the target tie point gray scale is within the target brightness range;
a second determining module, configured to determine, for every two neighboring areas in the M areas, a target luminance value of each sub-pixel in a boundary area of the every two neighboring areas by using a cubic interpolation method;
and a second adjusting module, configured to adjust, according to the target luminance value of each sub-pixel, the luminance of each sub-pixel under the target binding point gray scale, so that the actual luminance value of each sub-pixel is equal to the target luminance value of each sub-pixel.
6. The assembly of claim 5, further comprising:
the selection module is used for selecting a test area on the display panel;
the second acquisition module is used for acquiring N actual brightness values of the test area under N different gray scales, wherein N is an integer greater than 1;
the third acquisition module is used for acquiring N theoretical brightness values of the test area under the N different gray scales;
and the generating module is used for generating the corresponding relation between the theoretical brightness value and the actual brightness value according to the N actual brightness values and the N theoretical brightness values of the test area.
7. The assembly of claim 5 or 6, further comprising:
a dividing module for dividing the display panel into M regions;
the lighting module is used for lighting the display panel with the highest gray scale;
wherein the dividing module is configured to:
equally dividing the display panel into M regions; alternatively, the first and second electrodes may be,
the display panel is divided into M areas, the M areas comprise at least one of a first area and a second area, the first area comprises display dark spots and does not comprise display bright spots, and the second area comprises display bright spots and does not comprise display dark spots.
8. A display device comprising a display panel and a brightness adjustment assembly of the display panel of any one of claims 5 to 7.
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| CN109637416A (en) * | 2019-01-07 | 2019-04-16 | 成都中电熊猫显示科技有限公司 | Method of adjustment, device and the equipment of panel luminance |
| CN110288556B (en) * | 2019-07-04 | 2021-10-22 | 京东方科技集团股份有限公司 | Image processing method and device and display equipment |
| US11610557B2 (en) | 2019-10-15 | 2023-03-21 | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | Method and apparatus for improving a halo, and display |
| CN114495816B (en) * | 2020-10-26 | 2023-06-27 | 深圳Tcl数字技术有限公司 | Display image adjustment method, terminal device and computer readable storage medium |
| CN112735347A (en) * | 2020-12-30 | 2021-04-30 | Tcl华星光电技术有限公司 | Overvoltage compensation method and device, display panel and storage medium |
| CN112992065B (en) * | 2021-04-22 | 2022-04-15 | 昆山国显光电有限公司 | Brightness adjusting method and device for display panel and computer readable storage medium |
| CN113284469B (en) * | 2021-05-26 | 2022-09-09 | 深圳市华星光电半导体显示技术有限公司 | Brightness adjusting method, brightness adjusting device and electronic equipment |
| CN113327563B (en) * | 2021-05-31 | 2022-07-12 | Tcl华星光电技术有限公司 | Control method of display panel, display device and storage medium |
| CN113539165B (en) * | 2021-07-30 | 2023-04-07 | 合肥维信诺科技有限公司 | Gamma debugging method, device and equipment for display panel and storage medium |
| CN114898706B (en) * | 2022-05-18 | 2023-10-31 | 昆山国显光电有限公司 | Display screen brightness compensation method and device and computer equipment |
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