CN116129795A - Display screen compensation method, device, equipment and storage medium - Google Patents
Display screen compensation method, device, equipment and storage medium Download PDFInfo
- Publication number
- CN116129795A CN116129795A CN202211607964.3A CN202211607964A CN116129795A CN 116129795 A CN116129795 A CN 116129795A CN 202211607964 A CN202211607964 A CN 202211607964A CN 116129795 A CN116129795 A CN 116129795A
- Authority
- CN
- China
- Prior art keywords
- sub
- pixels
- screen
- determining
- compensation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 74
- 238000003860 storage Methods 0.000 title claims abstract description 20
- 241001270131 Agaricus moelleri Species 0.000 claims description 50
- 238000004590 computer program Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application discloses a display screen compensation method, a device, equipment and a storage medium. The display screen comprises a plurality of sub-screens, each sub-screen comprises a plurality of pixels, and the display screen compensation method comprises the following steps: acquiring first brightness data of a plurality of pixels of a sub-screen under the gray scale of a binding point; determining a first compensation value of a plurality of pixels of the sub-screen under the gray scale of the binding point according to the first brightness data; acquiring second brightness data of the display screen; dividing the second brightness data into brightness data corresponding to a plurality of first subareas of the display screen, and determining a second compensation value under the gray scale of binding points in each first subarea; and determining target compensation values of the pixels under the gray scale of the binding point according to the first compensation value and the second compensation value. According to the display screen compensation method, device, equipment and storage medium, the compensation time is shortened, and the efficiency is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display screen compensation method, a device, equipment and a storage medium.
Background
With the development of LED technology, mini LED/Micro LED display screens begin to gradually enter into the life and production of people. The Micro LED display screen has good performance in the aspect of large screen display according to the characteristics of high brightness, high color gamut, long service life and the like, and is an important direction for the development of future display screens.
In the process of manufacturing the Micro LED display screen, the uniformity of brightness and color of the display screen is not ideal due to the influence of factors such as materials, processes, equipment and the like, is limited by the limitation of the prior art, and is difficult to greatly improve the process in a short time. In the related art, the brightness of the Micro LED display screen can be corrected in an external optical compensation mode, but the resolution of the spliced display screen is higher, so that the problems of longer compensation flow time and lower efficiency exist in the related art.
Disclosure of Invention
The embodiment of the application provides a display screen compensation method, a device, equipment and a storage medium, which are beneficial to shortening compensation time and improving efficiency.
In a first aspect, an embodiment of the present application provides a display screen compensation method, where a display screen includes a plurality of sub-screens, and the sub-screens include a plurality of pixels, and the method includes:
acquiring first brightness data of a plurality of pixels of a sub-screen under the gray scale of a binding point;
determining a first compensation value of a plurality of pixels of the sub-screen under the gray scale of the binding point according to the first brightness data;
acquiring second brightness data of the display screen;
dividing the second brightness data into brightness data corresponding to a plurality of first subareas of the display screen, and determining a second compensation value under the gray scale of binding points in each first subarea;
and determining target compensation values of the pixels under the gray scale of the binding point according to the first compensation value and the second compensation value.
In a possible implementation manner of the first aspect, determining, according to the first luminance data, a first compensation value of a plurality of pixels of the sub-screen under a binding point gray scale includes:
according to the first brightness data, determining first target gray scales corresponding to a plurality of pixels of the sub-screen respectively, wherein actual display parameters of the plurality of pixels of the sub-screen under the first target gray scales accord with target display parameters corresponding to binding point gray scales;
and determining a first compensation value of a plurality of pixels of the sub-screen under the binding point gray level according to the difference value of the first target gray level and the binding point gray level.
In a possible implementation manner of the first aspect, determining the second compensation value of each first sub-region under the gray scale of the binding point includes:
for any one first subarea, determining a third compensation value of the first subarea under the gray scale of the binding point according to the brightness data corresponding to the first subarea;
and determining second compensation values corresponding to the pixels in the first subarea respectively according to the third compensation value of the first subarea under the gray scale of the binding point and a linear interpolation method.
In a possible implementation manner of the first aspect, determining the target compensation value of the plurality of pixels under the gray scale of the binding point according to the first compensation value and the second compensation value includes:
calculating the product of the first compensation value and a preset adjustment coefficient;
and determining target compensation values of the pixels under the gray scale of the binding point according to the sum of the product and the second compensation value.
In a possible implementation manner of the first aspect, the determining, according to the first luminance data, a first compensation value of a plurality of pixels of the sub-screen at a binding point gray level includes:
according to the first brightness data, determining first target gray scales corresponding to a plurality of pixels of the sub-screen respectively, wherein actual display parameters of the plurality of pixels of the sub-screen under the first target gray scales accord with target display parameters corresponding to binding point gray scales;
dividing the sub-screen into a plurality of second sub-areas, and determining second target gray scales respectively corresponding to a plurality of pixels of the sub-screen according to the target gray scales corresponding to the second sub-areas;
and determining a first compensation value of a plurality of pixels of the sub-screen under the gray scale of the binding point according to the difference value of the first target gray scale and the second target gray scale.
In a possible implementation manner of the first aspect, before determining the second target gray levels corresponding to the plurality of pixels of the sub-screen according to the target gray levels corresponding to the second sub-regions, the method further includes:
and taking the average value of the first target gray scales of a plurality of pixels in the second subarea as the target gray scales corresponding to the second subarea for any one of the second subareas.
In a possible implementation manner of the first aspect, determining the second target gray level corresponding to the plurality of pixels of the sub-screen according to the target gray level corresponding to each second sub-region includes:
and determining second target gray scales corresponding to a plurality of pixels of the sub-screen respectively according to the target gray scales corresponding to the second sub-areas and the linear interpolation method.
In a second aspect, embodiments of the present application provide a display screen compensation apparatus, a display screen including a plurality of sub-screens, the sub-screens including a plurality of pixels, the apparatus including:
the first data acquisition module is used for acquiring first brightness data of a plurality of pixels of the sub-screen under the gray scale of the binding point;
the first compensation value determining module is used for determining first compensation values of a plurality of pixels of the sub-screen under the gray scale of binding points according to the first brightness data;
the second data acquisition module is used for acquiring second brightness data of the display screen;
the second compensation value determining module is used for dividing the second brightness data into brightness data corresponding to a plurality of first subareas of the display screen and determining second compensation values of a plurality of pixels in each first subarea under the gray scale of the binding point;
the target compensation value determining module is used for determining target compensation values of the pixels under the gray scale of the binding point according to the first compensation value and the second compensation value.
In a third aspect, an embodiment of the present application provides an electronic device, including:
a processor and a memory storing computer program instructions that when executed by the processor implement a display screen compensation method according to any one of the embodiments of the first aspect.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements a display screen compensation method according to any one of the embodiments of the first aspect.
According to the display screen compensation method, device, equipment and storage medium, on one hand, the first brightness data of each sub-screen can be collected according to the assembly line before the plurality of sub-screens are spliced into the large-size display screen, feasibility is provided for display screen production line compensation, compensation time is shortened, and efficiency is improved. The second brightness data are full-screen brightness data of the display screen, accurate grabbing of brightness of each pixel is not needed, and compensation of the 4K and 8K display screens or even larger display screens can be completed according to the method and the device under the condition that current brightness acquisition equipment is limited, for example, a single camera shoots once and grabs real brightness data of all pixels of the full screen. On the other hand, the first compensation value is a compensation value corresponding to each pixel, and can be used as a compensation detail value of a single sub-screen, so that the brightness or color coordinate difference of the single sub-screen can be improved. The second compensation value is a compensation value corresponding to each first subarea, the second compensation value can be used as a compensation background value of the full screen, the brightness or color coordinate difference of the full screen can be improved, and the first compensation value and the second compensation value are fused, so that the full screen compensation effect can be improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings, in which like or similar reference characters designate the same or similar features, and which are not to scale.
Fig. 1 is a schematic structural diagram of a display screen in a display screen compensation method according to an embodiment of the present application;
fig. 2 is a schematic diagram of another structure of a display screen in the display screen compensation method according to the embodiment of the present application;
fig. 3 is a schematic flow chart of a display screen compensation method according to an embodiment of the present application;
fig. 4 is a schematic diagram illustrating brightness acquisition in the display screen compensation method according to the embodiment of the present application;
fig. 5 shows another flow chart of the display screen compensation method provided in the embodiment of the present application;
FIG. 6 is a schematic flow chart of a display screen compensation method according to an embodiment of the present disclosure;
fig. 7 is a schematic flow chart of a display screen compensation method according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a sub-screen partition of a display screen in the display screen compensation method according to the embodiment of the present application;
fig. 9 shows a schematic structural diagram of a display screen compensation device according to an embodiment of the present application;
fig. 10 shows a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application are described in detail below to make the objects, technical solutions and advantages of the present application more apparent, and to further describe the present application in conjunction with the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to explain the present application and are not configured to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Accordingly, this application is intended to cover such modifications and variations of this application as fall within the scope of the appended claims (the claims) and their equivalents. The embodiments provided in the examples of the present application may be combined with each other without contradiction.
Before describing the technical solution provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically describes the problems existing in the related art:
due to the influence of factors such as material characteristics, processes, equipment and the like, the produced large-size display screen has the phenomenon of uneven brightness and color intensity, and brightness correction is required. The correction is an important process for producing the display screen, and the existing photographing equipment is difficult to meet the full-screen photographing correction method of the display screen due to higher resolution of the large-size display screen. In the related art, a plurality of groups of photographing, such as interlaced or partitioned photographing, are performed on a large-sized display screen. In the related art, photographing is needed on the site of a customer, the time is long, the efficiency is very low, and the production line correction is difficult. And brightness and/or color coordinate deviation exists among the corrected display screen blocks, so that the correction effect is not ideal.
In order to solve the above problems, embodiments of the present application provide a display screen compensation method, device, apparatus and storage medium, and embodiments of the display screen compensation method, device, apparatus and storage medium will be described below with reference to the accompanying drawings.
First, a display screen compensation method provided by the embodiment of the application is described. The compensation method can be used for a display screen. Fig. 1 is a schematic structural diagram of a display screen in a display screen compensation method according to an embodiment of the present application. Fig. 2 is a schematic diagram of another structure of a display screen in the display screen compensation method according to the embodiment of the present application. The display screen may include a plurality of tiled sub-screens. Fig. 1 illustrates that the display screen includes 8 sub-screens, namely sub-screens a1 to a8; fig. 2 illustrates that the display screen includes 32 sub-screens, namely sub-screens a1 to a32. The resolution of the sub-screen is 1080 x 960. Fig. 1 and 2 are only examples, and the number of sub-screens included in the display screen and the resolution of each sub-screen are not limited in this application. It can be appreciated that the display screen compensation method provided by the embodiment of the application can be applied to a large-size and high-resolution display screen.
Fig. 3 is a schematic flow chart of a display screen compensation method according to an embodiment of the present application. As shown in fig. 3, the display screen compensation method provided in the embodiment of the present application includes S110 to S150.
S110, acquiring first brightness data of a plurality of pixels of a sub-screen under the gray scale of a binding point;
s120, determining a first compensation value of a plurality of pixels of the sub-screen under the gray scale of the binding point according to the first brightness data;
s130, acquiring second brightness data of the display screen;
s140, dividing the second brightness data into brightness data corresponding to a plurality of first subareas of the display screen, and determining a second compensation value under the gray scale of the binding point in each first subarea;
and S150, determining target compensation values of the pixels under the gray scale of the binding point according to the first compensation value and the second compensation value.
The specific implementation of each of the above steps will be described in detail below.
According to the display screen compensation method, device, equipment and storage medium, on one hand, the first brightness data of each sub-screen can be collected according to the assembly line before the plurality of sub-screens are spliced into the large-size display screen, feasibility is provided for display screen production line compensation, compensation time is shortened, and efficiency is improved. The second brightness data are full-screen brightness data of the display screen, accurate grabbing of brightness of each pixel is not needed, and compensation of the 4K and 8K display screens or even larger display screens can be completed according to the method and the device under the condition that current brightness acquisition equipment is limited, for example, a single camera shoots once and grabs real brightness data of all pixels of the full screen. On the other hand, the first compensation value is a compensation value corresponding to each pixel, and can be used as a compensation detail value of a single sub-screen, so that the brightness or color coordinate difference of the single sub-screen can be improved. The second compensation value is a compensation value corresponding to each first subarea, the second compensation value can be used as a compensation background value of the full screen, the brightness or color coordinate difference of the full screen can be improved, and the first compensation value and the second compensation value are fused, so that the full screen compensation effect can be improved.
A specific implementation of each of the above steps is described below.
S110 is first introduced.
Each sub-screen may include a plurality of pixels. The pixels may include sub-pixels of multiple colors. For example, the pixel may include a red subpixel R, a green subpixel G, and a blue subpixel B.
Multiple gray scales can be selected as binding point gray scales in the gray scale range of the display screen. For example, the gray scale range of the display screen is 0-255, and 16, 32, 64, 128, 192 and 255 can be selected as binding point gray scales.
Specifically, the sub-screen of the display screen can display the test picture corresponding to the gray level of the binding point, and then the sub-screen is photographed by using the camera, so that first brightness data of a plurality of pixels of the sub-screen under the gray level of the binding point is obtained. The first luminance data may comprise the true luminance of a plurality of pixels in the sub-screen, and even the first luminance data may comprise the true luminance of each pixel in the sub-screen.
For example, as shown in fig. 4, before the multiple sub-panels may be spliced, the multiple sub-panels may be arranged on a pipeline, and the multiple sub-panels may be photographed sequentially by using a camera, so as to obtain first luminance data corresponding to each of the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B of each sub-panel at the binding point gray scale 16, 32, 64, 128, 192, 255. The dashed box in fig. 4 represents the corresponding light color acquisition station for a single sub-screen.
Next, S120 is described.
In some alternative embodiments, as shown in FIG. 5, S120 may specifically include S121-S122.
S121, according to the first brightness data, determining first target gray scales corresponding to all pixels of the sub-screen respectively, wherein actual display parameters of a plurality of pixels of the sub-screen under the first target gray scales accord with target display parameters corresponding to binding point gray scales;
s122, determining a first compensation value of a plurality of pixels of the sub-screen under the gray level of the binding point according to the difference value of the first target gray level and the gray level of the binding point.
According to the embodiment of the application, the actual display parameters under the first target gray scale meet the target display parameters, so that the first compensation value determined according to the difference value between the first target gray scale and the binding point gray scale meets the requirements; therefore, based on the first compensation value corresponding to the single sub-screen, more accurate fine compensation for the single sub-screen can be realized, and display differences among different sub-screens caused by the compensation value determined based on the full-screen brightness data of the display screen can be avoided.
It is understood that the first luminance data is the actual display luminance of the pixels of the sub-screen at the gray scale of the binding point.
The first target gray level may be understood as a gray level after the pixels of the sub-screen are primarily compensated.
The display parameters may include at least one of brightness and color coordinates. Taking the example that the display parameter includes brightness, the target display parameter may include a brightness average of pixels of the sub-screen under the gray scale of the binding point, or the target display parameter may be the brightness of the gray scale of the binding point corresponding to the gamma curve. The gamma value of the gamma curve may be 2.2, 2.3, etc., or the gamma value of the gamma curve may be set according to actual requirements.
For example, in S121, a preset compensation algorithm may be used to determine the first target gray level. The preset compensation algorithm is not particularly limited, so long as the first target gray level can be determined.
It is appreciated that the first compensation value may be determined based on a single sub-screen, which may not take into account the effects between different sub-screens.
Next, S130 is described.
It will be appreciated that the second luminance data is obtained after the sub-screens are spliced into a complete display screen.
As an example, the spliced test frames corresponding to the gray levels of the display binding points of the display screen can be first made, then the display screen is photographed in a full screen manner by using the camera, and further second brightness data of the display screen under the gray levels of the binding points are obtained.
Because of the limitation of the resolution of the camera pixel, it is difficult to accurately acquire the real brightness of each pixel, the full-screen brightness distribution data of the display screen can be acquired by adopting the camera in S130, the specific value of each pixel is not required to be accurate, and the brightness data of each pixel is not required to be completely accurate.
S140 is next described.
The full screen of the display screen can be divided into a plurality of first subareas, the second brightness data corresponding to the full screen of the display screen is partitioned according to the plurality of first subareas, the brightness data corresponding to each first subarea is obtained, and the second compensation value corresponding to each first subarea under the gray level binding point is obtained.
For example, the determining the second compensation value of each first sub-region under the gray level of the binding point in S140 may specifically include: for any one first subarea, determining a third compensation value of the first subarea under the gray scale of the binding point according to the brightness data corresponding to the first subarea; and determining second compensation values corresponding to the pixels in the first subarea respectively according to the third compensation value of the first subarea under the gray scale of the binding point and a linear interpolation method.
According to the embodiment of the application, the second compensation value corresponding to each pixel is obtained through the second brightness data corresponding to the full screen, and the second compensation value is used as the full-screen background compensation value of the display screen, so that the difference between the sub-screens can be calibrated and unified, and the brightness and color difference between the sub-screens after the compensation is completed is improved.
Taking the display screen shown in fig. 1 as an example, the display screen includes 8 sub-screens a1 to a8 in total, the resolution of each sub-screen is 1080×960, and the resolution of the display screen is 3840×2160. With each first sub-area comprising 80 x 80 pixels, the display screen may be divided into 48 x 27 first sub-areas.
The brightness data of each first subarea can be averaged, and a preset compensation algorithm is adopted to calculate a third compensation value of the gray level of the sub-pixel R/G/B in the first subarea at each binding point. The compensation algorithm is not limited in this application.
Still taking 16, 32, 64, 128, 192, 255 as binding point gray levels, the pixel may correspond to the third compensation values of the 6 binding point gray levels, and the number of the third compensation values of each binding point gray level is 48×27. Here, the pixel may include a red subpixel R, a green subpixel G, and a blue subpixel B. In order to obtain the second compensation value of any pixel of the full screen of the display screen, the data size of the gray level of each binding point can be changed into the original resolution (48×27→3840×2160) of the display screen by adopting a bilinear or three-line difference mode, so as to obtain the second compensation value respectively corresponding to each pixel in the first subarea, and further obtain the second compensation value respectively corresponding to each pixel of the full screen of the display screen. The second compensation value may be understood as a full-screen compensation background value.
S150 is next described.
For example, as shown in fig. 6, S150 may include S151 and S152 in particular.
S151, calculating the product of the first compensation value and a preset adjustment coefficient;
s152, determining target compensation values of the pixels under the gray scale of the binding point according to the sum of the product and the second compensation value.
According to the embodiment of the application, the first compensation value can be adjusted by utilizing the preset adjustment coefficient, and the adjusted first compensation value and the adjusted second compensation value are further fused to obtain the target compensation value of the full-screen pixel of the display screen, so that the compensation effect based on the target compensation value is good.
For example, the specific value of the preset adjustment coefficient may be in the range of 0 to 2. The specific value of the preset adjustment coefficient can be set to be 1 by default, and then the specific value of the preset adjustment coefficient is adjusted according to the actual compensation effect.
The sum of the product and the second compensation value can be directly used as a target compensation value of the pixel under the gray scale of the binding point.
The obtained target compensation value can be stored in a storage module corresponding to the display screen, and can be directly called and compensated when the display screen displays.
Based on the same technical concept as S140, in determining the first compensation value of the plurality of pixels of the sub-screen under the gray scale of the binding point, the first compensation value may also be determined according to the manner of the sub-screen background compensation value.
For example, as shown in fig. 7, S120 may specifically include S123 to S125.
S123, determining first target gray scales corresponding to a plurality of pixels of the sub-screen respectively according to the first brightness data, wherein actual display parameters of the plurality of pixels of the sub-screen under the first target gray scales accord with target display parameters corresponding to binding point gray scales;
s124, dividing the sub-screen into a plurality of second sub-areas, and determining second target gray scales corresponding to a plurality of pixels of the sub-screen respectively according to the target gray scales corresponding to the second sub-areas;
s125, determining a first compensation value of a plurality of pixels of the sub-screen under the gray scale of the binding point according to the difference value of the first target gray scale and the second target gray scale.
According to the embodiment of the application, the second target gray level can be used as the background gray level value of the sub-screen, so that the first compensation value gives consideration to the background of the sub-screen, the refinement and precision degree of the first compensation value are improved, and the compensation effect can be further improved.
The specific implementation of S123 may be the same as that of S121, and will not be described in detail here.
In S124, the sub-screen may be divided into a plurality of second sub-areas distributed in a row and column. The shape of the second sub-zone may be circular, rectangular, etc.
In some optional embodiments, before determining the second target gray level corresponding to each pixel of the sub-screen according to the target gray level corresponding to each second sub-area, and dividing the sub-screen into a plurality of second sub-areas, the method provided in the embodiments of the present application may further include: and taking the average value of the first target gray scales of a plurality of pixels in the second subarea as the target gray scales corresponding to the second subarea for any one of the second subareas.
The average value of the first target gray levels of the pixels in the second subarea can be taken into consideration, so that the determined target gray levels corresponding to the second subarea can reflect the overall background of the second subarea.
In some optional embodiments, determining the second target gray level corresponding to the plurality of pixels of the sub-screen according to the target gray level corresponding to each second sub-region in S124 may specifically include: and determining second target gray scales corresponding to a plurality of pixels of the sub-screen respectively according to the target gray scales corresponding to the second sub-areas and the linear interpolation method.
According to the embodiment of the application, the second target gray scale is used as the background gray scale of the sub-screen, the difference between different areas of the sub-screen can be calibrated and unified, and the brightness and color difference between the areas of the sub-screen after compensation is completed is improved.
As shown in fig. 8, the sub-screen may include 16 circular second sub-areas in total of 4 rows and 4 columns.
Still taking 16, 32, 64, 128, 192, 255 as binding point gray levels, a pixel can correspond to target gray levels of 6 binding point gray levels, and the number of target gray levels of each binding point gray level is 4*4. Here, the pixel may include a red subpixel R, a green subpixel G, and a blue subpixel B. In order to obtain the second target gray level of any pixel of the sub-screen, the resolution of the sub-screen is 1080×960, and the data size of the gray level of each binding point can be changed into the original resolution of the sub-screen (4*4 →1080×960) by adopting a bilinear or trilinear difference mode, so as to obtain the second target gray level corresponding to each pixel in the second sub-area. The second target gray level may be understood as the background gray level of the sub-screen.
Based on the same inventive concept, the embodiments of the present application also provide a display screen compensation device, wherein a display screen includes a plurality of sub-screens, and the sub-screens include a plurality of pixels. As shown in fig. 9, the display screen compensation apparatus 900 includes a first data acquisition module 901, a first compensation value determination module 902, a second data acquisition module 903, a second compensation value determination module 904, and a target compensation value determination module 905.
A first data obtaining module 901, configured to obtain first luminance data of a plurality of pixels of a sub-screen under a binding point gray scale;
a first compensation value determining module 902, configured to determine, according to the first luminance data, a first compensation value of each pixel of the sub-screen under the gray level of the binding point;
a second data obtaining module 903, configured to obtain second luminance data of the display screen;
the second compensation value determining module 904 is configured to divide the second luminance data into luminance data corresponding to a plurality of first sub-regions of the display screen, and determine second compensation values of a plurality of pixels in each first sub-region under the gray level of the binding point;
the target compensation value determining module 905 is configured to determine target compensation values of the plurality of pixels under the gray scale of the binding point according to the first compensation value and the second compensation value.
According to the display screen compensation device provided by the embodiment of the application, on one hand, the first brightness data of each sub-screen can be collected according to the assembly line before the sub-screens are spliced into the large-size display screen, feasibility is provided for the production line compensation of the display screen, the compensation time is shortened, and the efficiency is improved. The second brightness data are full-screen brightness data of the display screen, accurate grabbing of brightness of each pixel is not needed, and compensation of the 4K and 8K display screens or even larger display screens can be completed according to the method and the device under the condition that current brightness acquisition equipment is limited, for example, a single camera shoots once and grabs real brightness data of all pixels of the full screen. On the other hand, the first compensation value is a compensation value corresponding to each pixel, and can be used as a compensation detail value of a single sub-screen, so that the brightness or color coordinate difference of the single sub-screen can be improved. The second compensation value is a compensation value corresponding to each first subarea, the second compensation value can be used as a compensation background value of the full screen, the brightness or color coordinate difference of the full screen can be improved, and the first compensation value and the second compensation value are fused, so that the full screen compensation effect can be improved.
In some alternative embodiments, the first compensation value determining module 902 is specifically configured to:
according to the first brightness data, determining first target gray scales corresponding to a plurality of pixels of the sub-screen respectively, wherein actual display parameters of the plurality of pixels of the sub-screen under the first target gray scales accord with target display parameters corresponding to binding point gray scales;
and determining a first compensation value of a plurality of pixels of the sub-screen under the binding point gray level according to the difference value of the first target gray level and the binding point gray level.
In some alternative embodiments, the second compensation value determining module 904 is specifically configured to:
for any one first subarea, determining a third compensation value of the first subarea under the gray scale of the binding point according to the brightness data corresponding to the first subarea;
and determining second compensation values corresponding to the pixels in the first subarea respectively according to the third compensation value of the first subarea under the gray scale of the binding point and a linear interpolation method.
In some alternative embodiments, the target compensation value determination module 905 is specifically operable to:
calculating the product of the first compensation value and a preset adjustment coefficient;
and determining target compensation values of the pixels under the gray scale of the binding point according to the sum of the product and the second compensation value.
In some alternative embodiments, the first compensation value determining module 902 is specifically configured to:
according to the first brightness data, determining first target gray scales corresponding to a plurality of pixels of the sub-screen respectively, wherein actual display parameters of the plurality of pixels of the sub-screen under the first target gray scales accord with target display parameters corresponding to binding point gray scales;
dividing the sub-screen into a plurality of second sub-areas, and determining second target gray scales respectively corresponding to a plurality of pixels of the sub-screen according to the target gray scales corresponding to the second sub-areas;
and determining a first compensation value of a plurality of pixels of the sub-screen under the gray scale of the binding point according to the difference value of the first target gray scale and the second target gray scale.
In some alternative embodiments, the first compensation value determining module 902 may be specifically further configured to:
and taking the average value of the first target gray scales of a plurality of pixels in the second subarea as the target gray scales corresponding to the second subarea for any one of the second subareas.
In some alternative embodiments, the first compensation value determining module 902 is specifically configured to:
and determining second target gray scales corresponding to a plurality of pixels of the sub-screen respectively according to the target gray scales corresponding to the second sub-areas and the linear interpolation method.
The driving device of the display panel in the embodiment of the application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a cell phone, tablet computer, notebook computer, palm computer, vehicle mounted electronic device, wearable device, ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), netbook or personal digital assistant (Personal Digital Assistant, PDA), etc., and the non-mobile electronic device may be a server, network attached storage (Network Attached Storage, NAS), personal computer (Personal Computer, PC), television (Television, TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.
The driving device for the display panel provided in the embodiment of the present application can implement each process in the embodiment of the driving method for the display panel in fig. 3, and in order to avoid repetition, a detailed description is omitted here.
Fig. 10 shows a schematic hardware structure of an electronic device according to an embodiment of the present application.
A processor 1001 and a memory 1002 storing computer program instructions may be included in an electronic device.
In particular, the processor 1001 described above may include a Central Processing Unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured as one or more integrated circuits that implement embodiments of the present invention.
The processor 1001 reads and executes the computer program instructions stored in the memory 1002 to implement any one of the display screen compensation methods of the above embodiments.
In one example, the electronic device may also include a communication interface 1003 and a bus 1010. As shown in fig. 10, the processor 1001, the memory 1002, and the communication interface 1003 are connected to each other by a bus 1010, and perform communication with each other.
The communication interface 1003 is mainly used for implementing communication among the modules, devices, units and/or apparatuses in the embodiment of the invention.
The electronic device can execute the display screen compensation method in the embodiment of the application, so that the display screen compensation method and the display screen compensation device described in connection with fig. 3 and 9 are realized.
The embodiment of the application further provides a computer readable storage medium, on which a computer program is stored, where the computer program can implement the display screen compensation method in the above embodiment when executed by a processor, and achieve the same technical effects, so that repetition is avoided, and no further description is given here. The computer readable storage medium may include, but is not limited to, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic or optical disk.
The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. "computer-readable medium" may include any medium capable of storing or transmitting information. Examples of a computer readable medium include an electronic circuit, a semiconductor memory device, a ROM, a flash memory, an Erasable ROM (EROM), a floppy disk, a CD-ROM, an optical disk, a hard disk, a fiber optic medium, a radio frequency link, and so forth. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
According to embodiments of the present application, the computer-readable storage medium may be a non-transitory computer-readable storage medium.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be different from the order in the embodiments, or several steps may be performed simultaneously.
Aspects of the present application are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to being, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware which performs the specified functions or acts, or combinations of special purpose hardware and computer instructions.
These embodiments are not all details described in detail in accordance with the embodiments described hereinabove, nor are they intended to limit the application to the specific embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various modifications as are suited to the particular use contemplated. This application is to be limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. A display screen compensation method, wherein the display screen comprises a plurality of sub-screens, the sub-screens comprising a plurality of pixels, the method comprising:
acquiring first brightness data of a plurality of pixels of the sub-screen under the gray scale of a binding point;
determining a first compensation value of a plurality of pixels of the sub-screen under the gray scale of the binding point according to the first brightness data;
acquiring second brightness data of the display screen;
dividing the second brightness data into brightness data corresponding to a plurality of first subareas of the display screen, and determining a second compensation value of each first subarea under the gray scale of the binding point;
and determining target compensation values of the pixels under the gray scale of the binding point according to the first compensation value and the second compensation value.
2. The method of claim 1, wherein determining a first compensation value for the plurality of pixels of the sub-screen at the binding point gray level based on the first luminance data comprises:
according to the first brightness data, determining first target gray scales corresponding to a plurality of pixels of the sub-screen respectively, wherein actual display parameters of the plurality of pixels of the sub-screen under the first target gray scales accord with target display parameters corresponding to the binding point gray scales;
and determining a first compensation value of a plurality of pixels of the sub-screen under the binding point gray scale according to the difference value of the first target gray scale and the binding point gray scale.
3. The method of claim 1, wherein determining a second compensation value for each of the first sub-regions at the binding point gray level comprises:
for any one of the first subareas, determining a third compensation value of the first subarea under the gray scale of the binding point according to brightness data corresponding to the first subarea;
and determining the second compensation values corresponding to the pixels in the first subarea according to the third compensation value of the first subarea under the gray scale of the binding point and a linear interpolation method.
4. The method of claim 1, wherein determining a target compensation value for the plurality of pixels at the binding point gray level based on the first compensation value and the second compensation value comprises:
calculating the product of the first compensation value and a preset adjustment coefficient;
and determining target compensation values of the pixels under the gray scale of the binding point according to the sum of the product and the second compensation value.
5. The method of claim 1, wherein determining a first compensation value for the plurality of pixels of the sub-screen at the binding point gray level based on the first luminance data comprises:
according to the first brightness data, determining first target gray scales corresponding to a plurality of pixels of the sub-screen respectively, wherein actual display parameters of the plurality of pixels of the sub-screen under the first target gray scales accord with target display parameters corresponding to the binding point gray scales;
dividing the sub-screen into a plurality of second sub-areas, and determining second target gray scales respectively corresponding to a plurality of pixels of the sub-screen according to the target gray scales corresponding to the second sub-areas;
and determining a first compensation value of a plurality of pixels of the sub-screen under the binding point gray scale according to the difference value of the first target gray scale and the second target gray scale.
6. The method of claim 5, wherein prior to said determining the second target gray level for each of the plurality of pixels of the sub-screen based on the target gray level for each of the second sub-regions, the method further comprises:
and regarding any one of the second subareas, taking the average value of the first target gray scales of the pixels in the second subarea as the target gray scale corresponding to the second subarea.
7. The method according to claim 5, wherein determining the second target gray level corresponding to the plurality of pixels of the sub-screen according to the target gray level corresponding to each of the second sub-areas includes:
and determining the second target gray scales corresponding to the pixels of the sub-screen respectively according to the target gray scales corresponding to the second sub-areas and a linear interpolation method.
8. A display screen compensation apparatus, wherein the display screen comprises a plurality of sub-screens, the sub-screens comprising a plurality of pixels, the apparatus comprising:
the first data acquisition module is used for acquiring first brightness data of a plurality of pixels of the sub-screen under the gray scale of binding points;
the first compensation value determining module is used for determining first compensation values of a plurality of pixels of the sub-screen under the gray scale of the binding point according to the first brightness data;
the second data acquisition module is used for acquiring second brightness data of the display screen;
the second compensation value determining module is used for dividing the second brightness data into brightness data corresponding to a plurality of first subareas of the display screen and determining second compensation values of a plurality of pixels in each first subarea under the gray scale of the binding point;
and the target compensation value determining module is used for determining target compensation values of the pixels under the gray scale of the binding point according to the first compensation value and the second compensation value.
9. An electronic device, comprising:
a processor and a memory storing computer program instructions that when executed implement the display screen compensation method of any one of claims 1 to 7.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the display screen compensation method according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211607964.3A CN116129795A (en) | 2022-12-14 | 2022-12-14 | Display screen compensation method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211607964.3A CN116129795A (en) | 2022-12-14 | 2022-12-14 | Display screen compensation method, device, equipment and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116129795A true CN116129795A (en) | 2023-05-16 |
Family
ID=86305490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211607964.3A Pending CN116129795A (en) | 2022-12-14 | 2022-12-14 | Display screen compensation method, device, equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116129795A (en) |
-
2022
- 2022-12-14 CN CN202211607964.3A patent/CN116129795A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111816113A (en) | Brightness compensation method, device and equipment of display panel | |
| CN112530347B (en) | Method, device and equipment for determining compensation gray scale | |
| CN100541585C (en) | Luminous display unit, electronic equipment, aging correction device and method | |
| CN110148388B (en) | Method and device for determining pixel compensation value, electronic equipment and storage medium | |
| CN103050074B (en) | A kind of rating afterimage device and method of display | |
| US10048061B2 (en) | Measuring method and measuring system thereof | |
| CN111564131B (en) | Gamma debugging method and device | |
| CN104835468A (en) | Liquid crystal panel and driving method therefor | |
| CN108364615B (en) | Mura compensation method and Mura compensation system | |
| CN111402827B (en) | LCD spliced screen correction method, device and system and control system | |
| CN110322830B (en) | LED screen brightness correction method and device | |
| CN114898714B (en) | Brightness compensation method, device, equipment and medium | |
| CN108230406B (en) | Data processing method and electronic equipment | |
| CN114093293B (en) | Luminance compensation parameter determination method, device and equipment | |
| CN114882822A (en) | Gamma debugging method, device, equipment and computer readable storage medium | |
| CN117746791A (en) | Display panel compensation method, electronic device, equipment and storage medium | |
| CN114267279B (en) | Compensation gray level determining method, device and equipment | |
| CN106971375B (en) | Image amplification processing method and device | |
| CN117746808A (en) | Display calibration method, display panel calibration system and display device | |
| CN116129795A (en) | Display screen compensation method, device, equipment and storage medium | |
| CN115398521A (en) | System, method and device for image processing | |
| CN113504992B (en) | Compensation data compression method, compensation method, device and equipment of display panel | |
| CN115019716A (en) | Compensation method, device and equipment of display panel and storage medium | |
| CN114266745A (en) | Image brightness value determination method and device, electronic equipment and storage medium | |
| CN113889036A (en) | Method for determining compensation gray scale value, compensation method, compensation device, compensation equipment and compensation medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |