CN112233617B - Optical data compensation method and compensation device, storage medium and electronic equipment - Google Patents
Optical data compensation method and compensation device, storage medium and electronic equipment Download PDFInfo
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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
- G09G3/22—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]
- G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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Abstract
The application provides an optical data compensation method and compensation device, a storage medium and an electronic device. The method comprises the following steps: determining an actual gray scale corresponding to a bending area of the display panel according to a voltage value of a central point of a plane area of the display panel under a first gray scale; acquiring optical data of the bending area under the first gray scale according to the optical data of the plane area under the actual gray scale; compensating for optical data of the curved region at the first gray scale. Compared with the prior art that the average value of the optical data of each pixel of the plane area is directly used for replacing the optical data of the bending area, the bending area is more uniformly displayed after compensation.
Description
Technical Field
The present disclosure relates to the field of display screens, and in particular, to an optical data compensation method and compensation apparatus, a storage medium, and an electronic device.
Background
Curved surface display screen receives user's favor more and more because of having advantages such as more comfortable wearing experience, better stereoscopic display effect, higher handheld sense. Currently, a curved display panel is mainly implemented by an organic light-Emitting Diode (OLED) panel. Because the OLED panel is manufactured by an immature process, the brightness unevenness of the panel during displaying is referred to as Mura in the industry, and the Mura is usually eliminated by compensating with a Demura scheme. For curved display panels, the same scheme as that of a flat display panel is currently adopted to collect optical data, so that the optical data in a curved area has deviation.
In the prior art, in order to eliminate the deviation of the optical data in the curved area, it is proposed to use the average value of the optical data of each pixel in the planar area instead of the optical data in the curved area. However, the average value of the optical data of each pixel in the flat area does not reflect the actual optical data of the curved area, and the display effect is still not ideal after the Demura processing is performed on the optical data.
Disclosure of Invention
The application provides an optical data compensation method, a compensation device, a storage medium and an electronic device, which are used for improving the display uniformity of a curved area of a curved display panel.
In a first aspect, the present application provides an optical data compensation method for compensating a display panel, the display panel including a planar region and a curved region, the method comprising: determining an actual gray scale corresponding to the bending area according to the voltage value of the central point of the plane area under the first gray scale; acquiring optical data of the bending area under the first gray scale according to the optical data of the plane area under the actual gray scale; compensating the optical data of the bending area under the first gray scale.
Optionally, the determining an actual gray scale corresponding to the curved region of the curved display panel according to the voltage value of the central point of the planar region of the curved display panel at the first gray scale includes: determining the voltage value of the central point of the bending area according to the voltage value of the central point of the plane area under the first gray scale; and determining an actual gray scale corresponding to the bending area according to the voltage value of the central point of the bending area and a preset mapping relation, wherein the preset mapping relation is used for representing the relation between the voltage value and the gray scale.
Optionally, before determining the voltage value of the center point of the curved region according to the voltage value of the center point of the planar region at the first gray scale, the method further includes: and determining the voltage value of the central point of the plane area under the first gray scale according to the gamma value of the central point of the plane area under the first gray scale, the voltage value of the central point of the plane area under the highest gray scale and the voltage value of the central point of the plane area under the lowest gray scale.
Optionally, the determining the voltage value of the central point of the curved region according to the voltage value of the central point of the planar region under the first gray scale includes: acquiring a first voltage value of a first pixel under the first gray scale, wherein the first pixel is a pixel close to the microelectronic device IC in a pixel row where the central point of the plane area is located; acquiring a second voltage value of a second pixel under the first gray scale, wherein the second pixel is a pixel close to the microelectronic device IC in a pixel row where the central point of the bending area is located; and determining the voltage value of the central point of the bending area according to the voltage value of the central point of the plane area under the first gray scale, the first voltage value and the second voltage value.
Optionally, the determining the voltage value of the central point of the curved region according to the voltage value of the central point of the planar region at the first gray scale, the first voltage value, and the second voltage value includes: obtaining a first difference value between the first voltage value and the voltage value of the central point of the plane area under the first gray scale; determining a second difference between the second voltage value and the first difference as a voltage value of a center point of the bending region.
Optionally, before determining the actual gray scale corresponding to the curved region according to the voltage value of the central point of the curved region and a preset mapping relationship, the method further includes: for each gray scale, acquiring a gamma value of the central point of the plane area under the gray scale; and determining the voltage value corresponding to the gray scale according to the gamma value, the voltage value of the central point of the plane area under the highest gray scale and the voltage value of the central point of the plane area under the lowest gray scale.
Optionally, the bending region includes N columns of pixels, where N is a positive integer; the acquiring optical data of the curved region at the first gray scale according to the optical data of the planar region at the actual gray scale includes: and selecting N rows of pixels from the plane area, and taking the optical data of the N rows of pixels under the actual gray scale as the optical data of the bending area under the first gray scale.
In a second aspect, the present application provides an optical data compensation apparatus comprising: the determining module is used for determining an actual gray scale corresponding to the bending area of the display panel according to the voltage value of the central point of the plane area of the display panel under the first gray scale; the acquisition module is used for acquiring optical data of the bending area under the first gray scale according to the optical data of the plane area under the actual gray scale; and the compensation module is used for compensating the optical data of the bending area under the first gray scale.
Optionally, the determining module is specifically configured to: determining the voltage value of the central point of the bending area according to the voltage value of the central point of the plane area under the first gray scale; and determining an actual gray scale corresponding to the bending region according to the voltage value of the central point of the bending region and a preset mapping relation, wherein the preset mapping relation is used for representing the relation between the voltage value and the gray scale.
Optionally, the determining module is further configured to: and determining the voltage value of the central point of the plane area under the first gray scale according to the gamma value of the central point of the plane area under the first gray scale, the voltage value of the central point of the plane area under the highest gray scale and the voltage value of the central point of the plane area under the lowest gray scale.
Optionally, the determining module is specifically configured to: acquiring a first voltage value of a first pixel under the first gray scale, wherein the first pixel is a pixel close to the microelectronic device IC in a pixel row where the central point of the plane area is located; acquiring a second voltage value of a second pixel under the first gray scale, wherein the second pixel is a pixel close to the microelectronic device IC in a pixel row where the central point of the bending area is located; and determining the voltage value of the central point of the bending area according to the voltage value of the central point of the plane area under the first gray scale, the first voltage value and the second voltage value.
Optionally, the determining module is further configured to: obtaining a first difference value between the first voltage value and the voltage value of the central point of the plane area under the first gray scale; determining a second difference between the second voltage value and the first difference as a voltage value of a center point of the bending region.
Optionally, the determining module is further configured to: for each gray scale, acquiring a gamma value of the central point of the plane area under the gray scale; and determining the voltage value corresponding to the gray scale according to the gamma value, the voltage value of the central point of the plane area under the highest gray scale and the voltage value of the central point of the plane area under the lowest gray scale.
Optionally, the curved region includes N columns of pixels, where N is a positive integer, and the obtaining module is specifically configured to: and selecting N rows of pixels from the plane area, and taking the optical data of the N rows of pixels under the actual gray scale as the optical data of the bending area under the first gray scale.
In a third aspect, the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described optical data compensation method.
In a fourth aspect, the present application provides an electronic device comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to implement the above-described optical data compensation method via execution of the executable instructions.
According to the optical data compensation method, the compensation device, the storage medium and the electronic equipment, the actual gray scale of the bending area is obtained through conversion of the voltage value of the central point of the bending area, then the optical data of the bending area under the first gray scale is obtained according to the optical data of the plane area under the actual gray scale, and compared with the prior art that the average value of the optical data of each pixel of the plane area is directly used for replacing the optical data of the bending area, the bending area is displayed more uniformly after compensation.
Drawings
FIG. 1 is a schematic view of a flat display panel provided in the present application;
FIG. 2 is a schematic view of a curved display panel provided in the present application;
FIG. 3 is a flowchart illustrating a first embodiment of an optical data compensation method according to the present application;
FIG. 4 is a first schematic view of a center point of a planar area provided in the present application;
FIG. 5 is a second schematic center point diagram of a planar area provided in the present application;
FIG. 6 is a flowchart of a second embodiment of an optical data compensation method provided in the present application;
FIG. 7 is a schematic structural diagram of an optical data compensation device provided in the present application;
fig. 8 is a schematic diagram of a hardware structure of an electronic device provided in the present application.
Detailed Description
To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. 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 application.
In this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, "at least one" means one or more, "a plurality" means two or more.
Because the manufacturing process of the OLED panel is immature, the OLED panel can generate the phenomenon of uneven brightness during displaying, for eliminating the uneven phenomenon, for a flat display panel, as shown in FIG. 1, optical data of each pixel on the panel in the direction vertical to the panel are collected firstly, and then the collected optical data are compensated by adopting a Demura scheme, so that the brightness uniformity of the panel is improved. For the curved display panel, referring to fig. 2, the curved display panel includes two regions, a planar region and a curved region, the planar region is indicated by region a in fig. 2, the curved region is indicated by region B, when collecting optical data of a curved display panel, the same scheme as that of a flat display panel is adopted at present, i.e., keeping the luminance meter perpendicular to the planar area, moving the luminance meter in parallel accomplishes the acquisition of optical data for each pixel across the panel, however, for a flat area of a curved display panel, the data collected by the luminance meter is accurate because the luminance meter is perpendicular to the flat area, however, for the curved area of the curved display panel, the luminance meter is not perpendicular to the curved area, and the optical data collected by the luminance meter is lower than the actual data, so that the display effect of the curved area is abnormal by performing compensation based on the optical data.
In the prior art, in order to eliminate the deviation of the optical data of the bending area acquired by the luminance meter, it is proposed to use the average value of the optical data of each pixel of the plane area instead of the optical data of the bending area, such as: referring to fig. 2, if the average value of the luminances of the pixels in the a area is calculated to be 100 candelas per square meter, the luminances of the B area in fig. 2 are directly considered to be 100 candelas per square meter, however, due to the panel manufacturing process, the luminances of the left B area may actually be displayed to be 90 candelas per square meter, the average value of the luminances of the pixels in the a area may not reflect the actual displayed luminance of the left B area, and if 100 is directly used to replace the luminance of the left B area, the display effect is still not ideal after the left B area is subjected to Demura processing.
In order to solve the above technical problems, the present application provides an optical data compensation method for a curved display panel curved region, which converts a voltage value at a center point of the curved region to obtain an actual gray scale of the curved region, wherein the brightness displayed by pixels in a middle row of a planar region is relatively accurate, and modulates the actual gray scale of the curved region with the gray scale of the panel, and then uses optical data of pixels in a middle row of the planar region to replace optical data of the curved region for compensation, and compared with the prior art in which an average value of optical data of pixels in the planar region is directly used to replace optical data of the curved region, the curved region is more uniformly displayed after compensation.
The optical data compensation method provided by the application can be realized by corresponding processing equipment, such as: the Central Processing Unit (CPU) may also be another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or any conventional processor or the like.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
It should be noted that: the optical data compensation method is suitable for compensating any one of red (R), green (G) and blue (B) in any gray scale before the panel leaves a factory. That is, the first gray scale provided by the present application may be any gray scale. The example of the present application illustrates the scheme of the present application by taking the compensation of the optical data of the curved region with the color of red (G) and the Gray level of Gray _ N as an example.
Fig. 3 is a flowchart of a first embodiment of an optical data compensation method provided in the present application. As shown in fig. 3, the optical data compensation method provided in this embodiment is used for compensating a display panel, where the display panel includes a planar region and a curved region, and includes:
s301, determining an actual gray scale corresponding to the bending area according to the voltage value of the central point of the plane area under the first gray scale.
In a possible implementation manner, firstly, the voltage value of the central point of the bending area can be determined according to the voltage value of the central point of the plane area under the first gray scale; and then, determining an actual gray scale corresponding to the bending region according to the voltage value of the central point of the bending region and a preset mapping relation, wherein the preset mapping relation represents the relation between the voltage value and the gray scale.
Before determining the voltage value of the central point of the curved region according to the voltage value of the central point of the planar region at the first gray scale, the voltage value of the central point of the planar region at the first gray scale needs to be determined.
In one possible implementation manner, the voltage value of the center point of the plane region at the first gray scale may be determined according to a gamma value of the center point of the plane region at the first gray scale, a voltage value of the center point of the plane region at the highest gray scale, and a voltage value of the center point of the plane region at the lowest gray scale.
The following examples illustrate:
referring to fig. 4, assuming that L5 is the center point of the planar area, the voltage value of the center point L5 of the planar area at Gray _ N can be determined by the following formula:
V5VGMP- (VGMP-VGSP)/4096 Gamma value
Wherein, V5Indicating the voltage value of L5 at Gray _ N, VGMP indicating the voltage value of L5 at the highest Gray level, VGSP indicating the voltage value of L5 at the lowest Gray level, and Gamma valueIndicating the gamma value of L5 at Gray _ N.
In a possible implementation manner, on the basis of the voltage value of the central point of the planar region at the first gray scale obtained in the foregoing manner, the voltage value of the central point of the curved region may be determined in the following manner:
acquiring a first voltage value of a first pixel under a first gray scale, wherein the first pixel is a pixel close to the microelectronic device IC in a pixel row where a central point of a plane area is located; and acquiring a second voltage value of a second pixel under the first gray scale, wherein the second pixel is a pixel close to the microelectronic device IC in the pixel row where the central point of the bending area is located. And determining the voltage value of the central point of the bending area according to the voltage value of the central point of the plane area under the first gray scale, the first voltage value and the second voltage value.
Specifically, the difference between the first voltage value and the voltage value of the central point of the planar area under the first gray scale is substantially the same as the difference between the second voltage value and the voltage value of the central point of the curved area under the first gray scale due to the small difference between the screen body routing impedance. Therefore, a first difference value between the first voltage value and the voltage value of the central point of the plane area under the first gray scale can be obtained; a second difference between the second voltage value and the first difference is determined as the voltage value of the center point of the bending region.
The following examples illustrate:
referring to fig. 5, it is assumed that L5 is a center point of the planar region, L4 is a center point of the left-side bending region, L6 is a center point of the right-side bending region, L8 is a pixel close to the microelectronic device IC in a pixel column in which L5 is located, L7 is a pixel close to the microelectronic device IC in a pixel column in which L4 is located, and L9 is a pixel close to the microelectronic device IC in a pixel column in which L6 is located. Actual measurements show that the voltage value of L8 under Gray _ N is V8, the voltage value of L7 under Gray _ N is V7, and the voltage value of L9 under Gray _ N is V9. Because the reason for the screen body wiring impedance is not very different, V8-V5-V7-V4-V9-V6, and after V5 is obtained through the above method and V7, V8 and V9 are obtained through actual measurement, the voltage values of V4 and V6 can be calculated.
After the voltage value of the central point of the bending area is obtained in the above manner, the actual gray scale corresponding to the bending area can be determined through the voltage value of the central point of the bending area and the preset mapping relation.
The following describes an obtaining method of the preset mapping relationship:
aiming at each gray scale, firstly, acquiring a gamma value of the central point of the plane area under the gray scale; and then determining the voltage value corresponding to the gray scale according to the gamma value, the voltage value of the central point of the plane area under the highest gray scale and the voltage value of the central point of the plane area under the lowest gray scale. This operation is performed for each gray level, so that the preset mapping relationship can be obtained.
Specifically, after obtaining the gamma value at any gray level, the voltage value of the center point of the plane region at the highest gray level, and the voltage value of the center point of the plane region at the lowest gray level, V may be calculated according to the above description5The voltage value corresponding to the gray scale is determined by the formula (2).
For example:
assuming that the voltage value of the center point of the bending region under Gray _ N is aV, and the Gray level corresponding to aV is Gray _ M by the mapping relationship obtained at that time, the actual Gray level corresponding to the bending region is Gray _ M.
S302, acquiring optical data of the bending area under the first gray scale according to the optical data of the plane area under the actual gray scale.
Specifically, after the actual gray scale corresponding to the curved region is obtained, the optical data of the planar region under the actual gray scale may be obtained, and then the data to be compensated for replacing the curved region is selected from the optical data of the planar region under the actual gray scale.
S303, compensating the optical data of the bending area under the first gray scale.
Specifically, the compensation of this step can be accomplished by the following steps: 1. mura data is found from the optical data of the curved region at the first gray level. 2. And generating the Demura data according to the mura data and a corresponding Demura compensation algorithm. 3. Burning the Demura data into a Flash ROM, re-shooting the compensated picture, and confirming that the mura is eliminated. Other existing compensation modes can be used for compensation, and the compensation method is not limited in the application.
In the optical data compensation method provided by this embodiment, the actual gray scale of the curved region is obtained by first converting the voltage value at the central point of the curved region, and then the optical data of the curved region at the first gray scale is obtained according to the optical data of the planar region at the actual gray scale.
Fig. 6 is a flowchart of a second embodiment of an optical data compensation method provided in the present application. This embodiment describes an implementation manner of S302 in the above embodiment. As shown in fig. 6, the optical data compensation method provided in this embodiment includes:
s601, determining an actual gray scale corresponding to the bending area according to the voltage value of the central point of the plane area under the first gray scale.
For a specific implementation manner of this step, refer to S301 in the above embodiment, and this application is not described herein again.
S602, selecting N rows of pixels from the plane area, and taking the optical data of the N rows of pixels under the actual gray scale as the optical data of the bending area under the first gray scale.
Since the brightness displayed by the middle row of pixels in the planar region is relatively accurate, the optical data of the middle N rows of pixels in the planar region at the actual gray scale can be selected as the optical data of the curved region at the first gray scale, where N is the number of rows of pixels in the curved region.
The following examples illustrate:
taking the left curved area in fig. 5 as an example, assuming that the number of rows of the left curved area is 10, the panel can be adjusted to the actual Gray level Gray _ M corresponding to the left curved area, a row of pixels at the middle of the planar area is found first, and then the pixels are spread to the left and right sides, so as to find the optical data of the 10 rows of pixels at the middle of the planar area, and the optical data of the left curved area at the Gray level Gray _ N is replaced by the optical data of the 10 rows. Compared with the average value of the optical data of each pixel in the plane area in the prior art, the optical data of the 10 rows of pixels in the middle of the plane area under the actual gray scale can represent the actual optical data of the left bending area, so that the data base of the Demura is more accurate for the left bending area, and the display effect after the Demura processing is better.
S603, compensating the optical data of the bending area under the first gray scale.
For a specific implementation manner of this step, refer to S303 in the above embodiment, which is not described herein again.
The optical data compensation method provided by this embodiment provides an implementation manner of S302, and the optical data of the bending area obtained in this manner can better represent the actual optical data of the bending area, and the display effect after compensation is better.
Fig. 7 is a schematic structural diagram of an optical data compensation apparatus provided in the present application. As shown in fig. 7, the present application provides an optical data compensation apparatus, including:
the determining module 701 is configured to determine an actual gray scale corresponding to a curved region of the display panel according to a voltage value of a central point of a planar region of the display panel at a first gray scale;
an obtaining module 702, configured to obtain optical data of the curved region in the first gray scale according to the optical data of the planar region in the actual gray scale;
a compensation module 703 for compensating the optical data of the bending region at the first gray scale.
Optionally, the determining module 701 is specifically configured to:
determining the voltage value of the central point of the bending area according to the voltage value of the central point of the plane area under the first gray scale;
and determining an actual gray scale corresponding to the bending region according to the voltage value of the central point of the bending region and a preset mapping relation, wherein the preset mapping relation is used for representing the relation between the voltage value and the gray scale.
Optionally, the determining module 701 is further configured to:
and determining the voltage value of the central point of the plane area under the first gray scale according to the gamma value of the central point of the plane area under the first gray scale, the voltage value of the central point of the plane area under the highest gray scale and the voltage value of the central point of the plane area under the lowest gray scale.
Optionally, the determining module 701 is specifically configured to:
acquiring a first voltage value of a first pixel under the first gray scale, wherein the first pixel is a pixel close to the microelectronic device IC in a pixel row where the central point of the plane area is located;
acquiring a second voltage value of a second pixel under the first gray scale, wherein the second pixel is a pixel close to the microelectronic device IC in a pixel row where the central point of the bending area is located;
and determining the voltage value of the central point of the bending area according to the voltage value of the central point of the plane area under the first gray scale, the first voltage value and the second voltage value.
Optionally, the determining module 701 is further configured to:
obtaining a first difference value between the first voltage value and the voltage value of the central point of the plane area under the first gray scale;
determining a second difference between the second voltage value and the first difference as a voltage value of a center point of the bending region.
Optionally, the determining module 701 is further configured to:
for each gray scale, acquiring a gamma value of the central point of the plane area under the gray scale;
and determining the voltage value corresponding to the gray scale according to the gamma value, the voltage value of the central point of the plane area under the highest gray scale and the voltage value of the central point of the plane area under the lowest gray scale.
Optionally, the curved region includes N columns of pixels, where N is a positive integer, and the obtaining module 702 is specifically configured to:
and selecting N rows of pixels from the plane area, and taking the optical data of the N rows of pixels under the actual gray scale as the optical data of the bending area under the first gray scale.
The optical data compensation device provided by the present application can be used for implementing the technical solutions of the above method embodiments, and the implementation principles and technical effects thereof are similar, and are not described herein again.
Fig. 8 is a schematic diagram of a hardware structure of an electronic device provided in the present application. As shown in fig. 8, the electronic device of the present embodiment may include:
a memory 801 for storing program instructions.
The processor 802 is configured to implement the optical data compensation method described in any of the above embodiments when the program instructions are executed, and specific implementation principles can be referred to the above embodiments, which are not described herein again.
The present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the optical data compensation method described in any of the above embodiments.
The present application further provides a program product comprising a computer program stored in a readable storage medium, the computer program being readable from the readable storage medium by at least one processor, the computer program being executable by the at least one processor to cause an electronic device to implement the optical data compensation method as described in any of the embodiments above.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to perform some steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be understood that the Processor described herein may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor, or in a combination of the hardware and software modules in the processor.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. An optical data compensation method for compensating a display panel, the display panel including a flat area and a curved area, comprising:
acquiring a first voltage value of a first pixel under a first gray scale, wherein the first pixel is a pixel close to a microelectronic device IC in a pixel row where a central point of the planar area is located;
acquiring a second voltage value of a second pixel under the first gray scale, wherein the second pixel is a pixel close to the microelectronic device IC in a pixel row where the central point of the bending area is located;
obtaining a first difference value between the first voltage value and the voltage value of the central point of the plane area under the first gray scale;
determining a second difference between the second voltage value and the first difference as a voltage value of a center point of the bending region;
determining an actual gray scale corresponding to the bending area according to the voltage value of the central point of the bending area and a preset mapping relation, wherein the preset mapping relation is used for representing the relation between the voltage value and the gray scale;
acquiring optical data of the bending area under the first gray scale according to the optical data of the plane area under the actual gray scale;
compensating for optical data of the curved region at the first gray scale.
2. The method of claim 1, wherein before determining the voltage value of the center point of the curved region according to the voltage value of the center point of the planar region at the first gray level, the method further comprises:
and determining the voltage value of the central point of the plane area under the first gray scale according to the gamma value of the central point of the plane area under the first gray scale, the voltage value of the central point of the plane area under the highest gray scale and the voltage value of the central point of the plane area under the lowest gray scale.
3. The method according to claim 1, wherein before determining the actual gray scale corresponding to the curved region according to the voltage value of the center point of the curved region and a preset mapping relationship, the method further comprises:
for each gray scale, acquiring a gamma value of the central point of the plane area under the gray scale;
and determining the voltage value corresponding to the gray scale according to the gamma value, the voltage value of the central point of the plane area under the highest gray scale and the voltage value of the central point of the plane area under the lowest gray scale.
4. A method according to any of claims 1-3, wherein the curved region comprises N columns of pixels, N being a positive integer;
the acquiring optical data of the curved region at the first gray scale according to the optical data of the planar region at the actual gray scale includes:
and selecting N rows of pixels from the plane area, and taking the optical data of the N rows of pixels under the actual gray scale as the optical data of the bending area under the first gray scale.
5. An optical data compensation apparatus, comprising:
the determining module is used for determining an actual gray scale corresponding to the bending area of the display panel according to the voltage value of the central point of the plane area of the display panel under the first gray scale;
the acquisition module is used for acquiring optical data of the bending area under the first gray scale according to the optical data of the plane area under the actual gray scale;
the compensation module is used for compensating the optical data of the bending area under the first gray scale;
the determining module is specifically configured to acquire a first voltage value of a first pixel under the first gray scale, where the first pixel is a pixel close to the microelectronic device IC in a pixel row where a center point of the planar region is located;
acquiring a second voltage value of a second pixel under the first gray scale, wherein the second pixel is a pixel close to the microelectronic device IC in a pixel row where the central point of the bending area is located;
obtaining a first difference value between the first voltage value and the voltage value of the central point of the plane area under the first gray scale;
determining a second difference between the second voltage value and the first difference as a voltage value of a center point of the bending region;
and determining an actual gray scale corresponding to the bending region according to the voltage value of the central point of the bending region and a preset mapping relation, wherein the preset mapping relation is used for representing the relation between the voltage value and the gray scale.
6. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method of any one of claims 1-4.
7. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to implement the method of any of claims 1-4 via execution of the executable instructions.
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