CN111540309A - Mura compensation method and device for display panel, display panel and display device - Google Patents
Mura compensation method and device for display panel, display panel and display device Download PDFInfo
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- CN111540309A CN111540309A CN202010423947.9A CN202010423947A CN111540309A CN 111540309 A CN111540309 A CN 111540309A CN 202010423947 A CN202010423947 A CN 202010423947A CN 111540309 A CN111540309 A CN 111540309A
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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]
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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
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- 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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Abstract
The application discloses a Mura compensation method and device for a display panel, the display panel and a display device, wherein the method comprises the following steps: acquiring and processing Mura compensation data corresponding to each preset gray scale in a display panel to obtain Mura compensation data corresponding to each intermediate gray scale; acquiring two gray scales closest to the gray scale to be compensated from each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale; performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to a gray scale to be compensated; and performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated, thereby realizing the compensation of the gray scale to be compensated. According to the method and the device, the Mura compensation data of a plurality of intermediate gray scales can be built in through the limited Mura compensation data of the preset gray scales, so that the Mura phenomenon of the display panel is improved, the Mura compensation precision is improved, and the quality of the display panel is enhanced.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a Mura compensation method and apparatus for a display panel, and a display apparatus.
Background
At present, due to the reasons of manufacturing process and the like, the display panel often has a Mura (uneven brightness) phenomenon in the production process, thereby affecting the quality of the display panel. Therefore, it is necessary to compensate the gray scale at the uneven brightness of the display panel to eliminate the Mura phenomenon. The data for compensating the gray scale is referred to as Mura compensation data.
In the Mura compensation of the conventional display panel, only some gray scales have corresponding Mura compensation data, for example, only the corresponding Mura compensation data of gray scales 10, 30 and 50, and if the Mura compensation is required for the gray scale 32, the corresponding Mura compensation data of the closest gray scale 30 is selected to compensate the gray scale 32. However, the compensation accuracy is not high, and the Mura phenomenon cannot be eliminated.
In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: in the conventional Mura compensation of the display panel, the compensation precision is not high, and Mura can not be eliminated.
Disclosure of Invention
Accordingly, it is necessary to provide a method and an apparatus for compensating Mura of a display panel, a display panel and a display apparatus, aiming at the problem that the conventional Mura compensation of the display panel is not accurate and still cannot eliminate Mura.
In order to achieve the above object, an embodiment of the present invention provides a Mura compensation method for a display panel, including the following steps:
acquiring and processing Mura compensation data corresponding to each preset gray scale in a display panel to obtain Mura compensation data corresponding to each intermediate gray scale; the numerical value of the middle gray scale is the average value of two adjacent preset gray scale numerical values;
acquiring two gray scales closest to the gray scale to be compensated from each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale;
performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to a gray scale to be compensated;
and performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated.
In one embodiment, the step of obtaining and processing the Mura compensation data corresponding to each preset gray scale in the display panel to obtain the Mura compensation data corresponding to each intermediate gray scale includes:
and acquiring a current image of the display panel, and determining a gray scale to be compensated according to the current image.
In one embodiment, the step of obtaining and processing the Mura compensation data corresponding to each preset gray scale in the display panel to obtain the Mura compensation data corresponding to each intermediate gray scale includes:
acquiring Mura compensation data corresponding to each preset gray scale in a display panel;
and respectively carrying out linear interpolation processing on the Mura compensation data of two adjacent corresponding preset gray scales to obtain the Mura compensation data corresponding to each intermediate gray scale.
In one embodiment, the method further comprises the following steps:
acquiring two gray scales closest to the gray scale to be compensated in each preset gray scale, and determining the two gray scales as a first reference gray scale and a second reference gray scale;
processing the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale to obtain Mura compensation data corresponding to the intermediate reference gray scale; the numerical value of the middle reference gray scale is the average value of the numerical values of the first reference gray scale and the second reference gray scale;
and selecting two gray scales closest to the gray scale to be compensated from the first reference gray scale, the second reference gray scale and the intermediate reference gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale.
In one embodiment, the step of processing the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale to obtain the Mura compensation data corresponding to the intermediate reference gray scale includes:
and carrying out spline interpolation processing on the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale to obtain Mura compensation data corresponding to the intermediate reference gray scale.
In one embodiment, the step of obtaining and processing the Mura compensation data corresponding to each preset gray scale in the display panel to obtain the Mura compensation data corresponding to each intermediate gray scale further includes:
and storing the Mura compensation data corresponding to each intermediate gray scale.
On the other hand, an embodiment of the present invention further provides a Mura compensation apparatus for a display panel, including:
the intermediate gray scale acquisition unit is used for acquiring and processing Mura compensation data corresponding to each preset gray scale in the display panel to obtain the Mura compensation data corresponding to each intermediate gray scale; the numerical value of the middle gray scale is the average value of two adjacent preset gray scale numerical values;
the comparison gray scale obtaining unit is used for obtaining two gray scales closest to the gray scale to be compensated from each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale;
the supplementary gray scale processing unit is used for carrying out linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to a gray scale to be compensated;
and the Mura compensation unit is used for performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated.
On the other hand, the embodiment of the invention also provides a display panel, which comprises a processing device and a light-emitting device connected with the processing device;
the processing device is adapted to perform the steps of the display panel Mura compensation method as defined in any of the above.
On the other hand, the embodiment of the invention also provides a display device, which comprises the display panel.
In one embodiment, the display panel is an OLED display panel, a Micro LED display panel, a Mini LED display panel, or a μ LED display panel.
One of the above technical solutions has the following advantages and beneficial effects:
in each embodiment of the Mura compensation method for the display panel, the Mura compensation data corresponding to each preset gray scale in the display panel are obtained and processed to obtain the Mura compensation data corresponding to each intermediate gray scale; the numerical value of the middle gray scale is the average value of two adjacent preset gray scale numerical values; acquiring two gray scales closest to the gray scale to be compensated from each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale; performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to a gray scale to be compensated; and performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated, thereby realizing compensation of the gray scale to be compensated in the display panel and eliminating the Mura phenomenon. According to the method and the device, the Mura compensation data of a plurality of intermediate gray scales can be built in through the limited Mura compensation data of the preset gray scales and data processing, so that the Mura phenomenon of the display panel can be improved, the Mura compensation precision is improved, and the quality of the display panel is enhanced.
Drawings
The present application will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a diagram illustrating an exemplary Mura compensation method for a display panel;
FIG. 2 is a schematic diagram illustrating gray scales of a display panel according to an embodiment;
FIG. 3 is a first flowchart illustrating a Mura compensation method for a display panel according to an embodiment;
FIG. 4 is a diagram illustrating a second process of a Mura compensation method for a display panel according to an embodiment;
FIG. 5 is a third flowchart illustrating a Mura compensation method for a display panel according to an embodiment;
FIG. 6 is a fourth flowchart illustrating a Mura compensation method for a display panel according to an embodiment;
FIG. 7 is a block diagram of a Mura compensation apparatus for a display panel according to one embodiment;
FIG. 8 is a schematic diagram of a display panel according to an embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The Mura compensation method for the display panel can be applied to the application environment shown in FIG. 1. The display panel may include, among other things, a processing device 110 and a light emitting device 120. The processing device 110 is connected with the light emitting device 120, wherein the processing device 110 may include a processing chip; the processing chip may be, but is not limited to, a single chip, a DSP (Digital signal processing) processor, and an arm (advanced RISC machines) processor. The light emitting device 120 may be, but is not limited to, an LCD light emitting device and an LED light emitting device.
In one example, as shown in FIG. 2, the current image of the display panel may include 256 gray levels (gray 0-gray 255). The display panel can include Mura compensation data (panle _0, panle _1, panle _2, and panle _3) corresponding to 3 preset gray levels. The gray scale to be compensated is located between the gray scale of panle _1 and the gray scale of panle _ 2.
In one embodiment, as shown in fig. 3, a Mura compensation method for a display panel is provided, which is exemplified by the method applied to the processing apparatus in fig. 1, and includes the following steps:
step S310, acquiring and processing Mura compensation data corresponding to each preset gray scale in the display panel to obtain Mura compensation data corresponding to each intermediate gray scale; the value of the middle gray scale is the average value of two adjacent preset gray scale values.
The display panel may be, but is not limited to, an LCD display panel or an LED display panel. The Mura (luminance unevenness) compensation data refers to data for compensating for gray scales. The intermediate gray level refers to an intermediate value between the adjacent 2 preset gray levels. For example, if the adjacent 2 predetermined gray levels are gray levels 30 and 50, the intermediate gray level is gray level 40.
Specifically, the processing device may obtain the Mura compensation data corresponding to each preset gray scale in the display panel, and process the obtained Mura compensation data corresponding to each preset gray scale, so as to obtain the Mura compensation data corresponding to each intermediate gray scale.
In one example, there are 3 preset gray levels (gray level 10, gray level 30, and gray level 50, respectively) based on the current image displayed by the display panel. The processing device may obtain Mura compensation data corresponding to gray scale 10, Mura compensation data corresponding to gray scale 30, and Mura compensation data corresponding to gray scale 50. The processing device can process the Mura compensation data corresponding to the gray scale 10 and the Mura compensation data corresponding to the gray scale 30, and further obtain the Mura compensation data corresponding to the gray scale 20. The processing device can also process the Mura compensation data corresponding to the gray scale 30 and the Mura compensation data corresponding to the gray scale 50, and further obtain the Mura compensation data corresponding to the gray scale 40. The Mura compensation data corresponding to gray scale 20 and the Mura compensation data corresponding to gray scale 40 are the Mura compensation data corresponding to the intermediate gray scale.
In step S320, two gray scales closest to the gray scale to be compensated are obtained from the preset gray scales and the intermediate gray scales, and determined as a first comparison gray scale and a second comparison gray scale.
Wherein, the first comparison gray scale refers to one gray scale of two closest gray scales compared with the gray scale to be compensated. The second comparison gray scale refers to the other gray scale of the two gray scales closest to the gray scale to be compensated.
Specifically, the processing device may select two gray scales closest to the gray scale to be compensated from among the processed intermediate gray scales and the preset gray scales, and determine one of the two closest gray scales as a first comparison gray scale, and determine the other one of the two closest gray scales as a second comparison gray scale.
And step S330, performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to the gray scale to be compensated.
The gray scale to be compensated refers to the gray scale to be compensated of Mura existing in the display panel.
Specifically, the processing device may perform linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale based on a linear interpolation algorithm, so as to obtain the Mura compensation data corresponding to the gray scale to be compensated.
Step S340, according to the Mura compensation data corresponding to the gray scale to be compensated, carrying out Mura compensation on the display panel.
Specifically, the processing device can perform Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated, so as to realize compensation on the gray scale to be compensated and eliminate the Mura phenomenon of the display panel.
In the embodiment of the Mura compensation method for the display panel, the Mura compensation data corresponding to each preset gray scale in the display panel are obtained and processed to obtain the Mura compensation data corresponding to each intermediate gray scale; acquiring two gray scales closest to the gray scale to be compensated from each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale; performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to a gray scale to be compensated; and performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated, thereby realizing compensation of the gray scale to be compensated in the display panel and eliminating the Mura phenomenon. The Mura compensation data of a plurality of intermediate gray scales are built in the limited Mura compensation data of the preset gray scales through data processing, so that the Mura phenomenon of the display panel can be improved, the Mura compensation precision is improved, and the quality of the display panel is enhanced.
In one embodiment, as shown in fig. 4, a Mura compensation method for a display panel is provided, which is exemplified by the method applied to the processing apparatus in fig. 1, and includes the following steps:
step S410, acquiring a current image of the display panel, and determining a gray scale to be compensated according to the current image.
Specifically, based on the current image displayed by the display panel, the processing device may acquire the current image of the display panel and determine the gray scale to be compensated according to the current image.
In one example, the processing device may obtain a current image of the display panel and determine a gray level (e.g., gray level 32) that needs to be compensated based on a Mura condition of the current image.
Step S420, acquiring and processing Mura compensation data corresponding to each preset gray scale in the display panel to obtain Mura compensation data corresponding to each intermediate gray scale; the value of the middle gray scale is the average value of two adjacent preset gray scale values.
In step S430, two gray scales closest to the gray scale to be compensated are obtained from the preset gray scales and the intermediate gray scales, and determined as a first comparison gray scale and a second comparison gray scale.
Step S440, the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale are subjected to linear interpolation processing to obtain Mura compensation data corresponding to the gray scale to be compensated.
And S450, performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated.
The specific content processes of step S420, step S430, step S440, and step S450 may refer to the above contents, and are not described herein again.
In the embodiment, the current image of the display panel is obtained, and the gray scale to be compensated is determined according to the current image; acquiring and processing Mura compensation data corresponding to each preset gray scale in a display panel, and further acquiring Mura compensation data corresponding to each intermediate gray scale; acquiring two gray scales closest to the gray scale to be compensated from each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale; performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to a gray scale to be compensated; and performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated, thereby realizing compensation of the gray scale to be compensated in the display panel and eliminating the Mura phenomenon. The Mura compensation data of a plurality of intermediate gray scales are built in the limited Mura compensation data of the preset gray scales through data processing, so that the Mura phenomenon of the display panel can be improved, the Mura compensation precision is improved, and the quality of the display panel is enhanced.
In one embodiment, as shown in fig. 5, a Mura compensation method for a display panel is provided, which is exemplified by the method applied to the processing apparatus in fig. 1, and includes the following steps:
step S510, acquiring Mura compensation data corresponding to each preset gray scale in the display panel;
specifically, based on the current image displayed by the display panel, the processing device may further obtain Mura compensation data corresponding to each preset gray scale in the display panel.
In one example, the Mura compensation data corresponding to the preset gray scales may be pre-stored in a register, and the processing device may further query the register in a lookup table manner to obtain the Mura compensation data corresponding to each preset gray scale.
Step S520, performing linear interpolation processing on the Mura compensation data corresponding to the two adjacent preset gray scales respectively to obtain the Mura compensation data corresponding to each intermediate gray scale.
Specifically, the processing device may perform linear interpolation processing on the Mura compensation data of two adjacent corresponding preset gray scales based on a linear interpolation algorithm, so as to obtain the Mura compensation data corresponding to each intermediate gray scale.
For example, the processing device may perform linear interpolation on the Mura compensation data corresponding to the gray scale 10 and the Mura compensation data corresponding to the gray scale 30, and further obtain the Mura compensation data corresponding to the gray scale 20. The processing device may further perform linear interpolation processing on the Mura compensation data corresponding to the gray scale 30 and the Mura compensation data corresponding to the gray scale 50, so as to obtain the Mura compensation data corresponding to the gray scale 40.
In step S530, two gray scales closest to the gray scale to be compensated are obtained from the preset gray scales and the intermediate gray scales, and determined as a first comparison gray scale and a second comparison gray scale.
And step S540, performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to the gray scale to be compensated.
And step S550, performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated.
The specific content processes of step S530, step S540 and step S550 may refer to the above contents, and are not described herein again.
In the above embodiment, the processing device may obtain Mura compensation data corresponding to each preset gray scale in the display panel; respectively carrying out linear interpolation processing on the Mura compensation data of two adjacent corresponding preset gray scales so as to obtain the Mura compensation data corresponding to all intermediate gray scales; acquiring two gray scales closest to the gray scale to be compensated from each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale; performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to a gray scale to be compensated; and performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated, thereby realizing compensation of the gray scale to be compensated in the display panel and eliminating the Mura phenomenon. The Mura compensation data of a plurality of intermediate gray scales are built in the limited Mura compensation data of the preset gray scales through data processing, so that the Mura phenomenon of the display panel can be improved, the Mura compensation precision is improved, and the quality of the display panel is enhanced.
In one embodiment, as shown in fig. 6, a Mura compensation method for a display panel is provided, which is exemplified by the method applied to the processing apparatus in fig. 1, and includes the following steps:
step S610, obtaining Mura compensation data corresponding to each preset gray scale in the display panel.
Step S620, acquiring two gray scales closest to the gray scale to be compensated from the preset gray scales, and determining the two gray scales as a first reference gray scale and a second reference gray scale;
for example, the preset gray levels include gray level 10, gray level 30 and gray level 50; the gray level to be compensated is gray level 32. The 2 gray levels closest to the gray level 32 are the gray level 30 and the gray level 50, i.e. the first reference gray level is the gray level 30 and the second reference gray level is the gray level 50.
It should be noted that, if the first reference gray level is the gray level 50, the second reference gray level is the gray level 30.
Step S630, the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale are processed to obtain Mura compensation data corresponding to the intermediate reference gray scale; the numerical value of the middle reference gray scale is the average value of the numerical values of the first reference gray scale and the second reference gray scale;
specifically, the processing device determines a first reference gray scale and a second reference gray scale, and then obtains Mura compensation data corresponding to the first reference gray scale and Mura compensation data corresponding to the second reference gray scale. And processing the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale by the processing equipment so as to obtain the Mura compensation data corresponding to the intermediate reference gray scale.
For example, if the first reference gray level is gray level 30, the second reference gray level is gray level 50, and the intermediate reference gray level is gray level 40. And processing the Mura compensation data corresponding to the gray scale 30 and the Mura compensation data corresponding to the gray scale 50 to obtain Mura compensation data corresponding to the gray scale 40.
In step S640, two gray scales closest to the gray scale to be compensated are selected from the first reference gray scale, the second reference gray scale and the intermediate reference gray scale, and determined as a first comparison gray scale and a second comparison gray scale.
For example, the first reference gray level is gray level 30, the second reference gray level is gray level 50, and the intermediate reference gray level is gray level 40; the gray level to be compensated is gray level 32. Two gray scales closest to the gray scale to be compensated are selected as the gray scale 30 and the gray scale 40, that is, the first comparison gray scale is determined as the gray scale 30 and the second comparison gray scale is determined as the gray scale 40.
It should be noted that, if the first comparison gray scale is gray scale 40, the second comparison gray scale is gray scale 30.
Step S650, carrying out linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to the gray scale to be compensated.
And step S660, performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated.
The specific content processes of step S610, step S650, and step S660 may refer to the above contents, and are not described herein again.
In the above embodiment, the processing device obtains the current image of the display panel, and determines the gray scale to be compensated (for example, the gray scale 32) according to the current image; selecting two gray scales closest to a gray scale to be compensated (a gray scale 32) from a plurality of preset gray scales (such as a gray scale 10, a gray scale 30 and a gray scale 50), namely a first reference gray scale (a gray scale 30) and a second reference gray scale (a gray scale 50); processing the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale so as to obtain Mura compensation data corresponding to an intermediate reference gray scale (gray scale 40); selecting two gray scales closest to a gray scale (32) to be compensated from a first reference gray scale (30), a second reference gray scale (50) and a middle reference gray scale (40), determining the two gray scales as a first comparison gray scale (30) and a second comparison gray scale (40), performing linear interpolation processing on Mura compensation data corresponding to the first comparison gray scale (30) and Mura compensation data corresponding to the second comparison gray scale (40) to obtain Mura compensation data corresponding to the gray scale (32) to be compensated, and compensating the gray scale to be compensated according to the Mura compensation data corresponding to the gray scale to be compensated to eliminate a Mura phenomenon. The Mura compensation data of a plurality of intermediate gray scales are built in the limited Mura compensation data of the preset gray scales through data processing, so that the Mura phenomenon of the display panel can be improved, the Mura compensation precision is improved, and the quality of the display panel is enhanced.
In one embodiment, the step of processing the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale to obtain the Mura compensation data corresponding to the intermediate reference gray scale includes:
and carrying out spline interpolation processing on the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale to obtain Mura compensation data corresponding to the intermediate reference gray scale.
The spline interpolation processing means that a function is determined between every two points, the function is a spline, and the splines are different when the functions are different.
Specifically, the processing device performs spline interpolation processing on the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale based on a spline interpolation algorithm, so as to obtain Mura compensation data corresponding to the intermediate reference gray scale.
In one embodiment, the step of obtaining and processing the Mura compensation data corresponding to each preset gray scale in the display panel to obtain the Mura compensation data corresponding to each intermediate gray scale further includes:
and storing the Mura compensation data corresponding to each intermediate gray scale.
Specifically, the processing apparatus may calculate the Mura compensation data corresponding to all the intermediate grayscales, and store the Mura compensation data corresponding to each intermediate grayscale in a TCON (register).
It should be understood that although the various steps in the flow charts of fig. 3-6 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 3-6 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 7, there is also provided a display panel Mura compensation apparatus including:
an intermediate gray scale obtaining unit 710, configured to obtain and process Mura compensation data corresponding to each preset gray scale in the display panel, to obtain Mura compensation data corresponding to each intermediate gray scale; the value of the middle gray scale is the average value of two adjacent preset gray scale values.
The comparison gray scale obtaining unit 720 is configured to obtain two gray scales closest to the gray scale to be compensated from among the preset gray scales and the intermediate gray scales, and determine the two gray scales as a first comparison gray scale and a second comparison gray scale.
And the supplementary gray scale processing unit 730 is configured to perform linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to a gray scale to be compensated.
The Mura compensation unit 740 is configured to perform Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated.
For specific limitations of the display panel Mura compensation apparatus, reference may be made to the above limitations of the display panel Mura compensation method, which are not described herein again. The modules in the display panel Mura compensation apparatus may be wholly or partially implemented by software, hardware, or a combination thereof. The modules can be embedded in a processor in the display panel Mura compensation system or independent of the processor in the display panel Mura compensation system in a hardware form, and can also be stored in a memory in the display panel Mura compensation system in a software form, so that the processor can call and execute the corresponding operations of the modules.
On the other hand, as shown in fig. 8, there is also provided a display panel including a processing device 810 and a light emitting device 820 connected to the processing device 810; the processing device 810 is configured to perform the steps of the display panel Mura compensation method according to any one of the above.
Wherein the light emitting device 820 may be, but is not limited to, an LCD light emitting device or an LED light emitting device. The processing device 810 may be, but is not limited to, a single chip microcomputer or a DSP.
In particular, processing device 810 may be used to perform the following steps:
acquiring and processing Mura compensation data corresponding to each preset gray scale in a display panel to obtain Mura compensation data corresponding to each intermediate gray scale; the numerical value of the middle gray scale is the average value of two adjacent preset gray scale numerical values;
acquiring two gray scales closest to the gray scale to be compensated from each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale;
performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to a gray scale to be compensated;
and performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be compensated.
For the specific definition of the display panel, reference may be made to the above definition of the Mura compensation method for the display panel, and details are not described herein again.
In one embodiment, a display device is also provided, which includes the display panel as described above.
In one embodiment, the display panel is an OLED display panel, a Micro LED display panel, a Mini LED display panel, or a μ LED display panel.
For specific limitations of the display device, reference may be made to the limitations of the Mura compensation method for the display panel and the display panel, which are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the division methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A Mura compensation method for a display panel is characterized by comprising the following steps:
acquiring and processing Mura compensation data corresponding to each preset gray scale in a display panel to obtain Mura compensation data corresponding to each intermediate gray scale; the numerical value of the intermediate gray scale is the average value of two adjacent preset gray scale numerical values;
acquiring two gray scales closest to the gray scale to be compensated from each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale;
performing linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to the gray scale to be compensated;
and performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be supplemented.
2. The Mura compensation method of claim 1, wherein the step of obtaining and processing the Mura compensation data corresponding to each preset gray level in the display panel to obtain the Mura compensation data corresponding to each intermediate gray level comprises:
and acquiring a current image of the display panel, and determining the gray scale to be compensated according to the current image.
3. The Mura compensation method of claim 1, wherein the step of obtaining and processing the Mura compensation data corresponding to each preset gray level in the display panel to obtain the Mura compensation data corresponding to each intermediate gray level comprises:
acquiring Mura compensation data corresponding to each preset gray scale in the display panel;
and respectively carrying out linear interpolation processing on the Mura compensation data of two adjacent corresponding preset gray scales to obtain the Mura compensation data corresponding to each intermediate gray scale.
4. The display panel Mura compensation method of claim 1, further comprising the steps of:
acquiring two gray scales closest to the gray scale to be compensated in each preset gray scale, and determining the two gray scales as a first reference gray scale and a second reference gray scale;
processing the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale to obtain Mura compensation data corresponding to an intermediate reference gray scale; the numerical value of the intermediate reference gray scale is the average value of the numerical values of the first reference gray scale and the second reference gray scale;
and selecting two gray scales closest to the gray scale to be compensated from the first reference gray scale, the second reference gray scale and the intermediate reference gray scale, and determining the two gray scales as the first comparison gray scale and the second comparison gray scale.
5. The Mura compensation method of claim 4, wherein the step of processing the Mura compensation data corresponding to the first reference gray level and the Mura compensation data corresponding to the second reference gray level to obtain the Mura compensation data corresponding to the intermediate reference gray level comprises:
and carrying out spline interpolation processing on the Mura compensation data corresponding to the first reference gray scale and the Mura compensation data corresponding to the second reference gray scale to obtain Mura compensation data corresponding to the intermediate reference gray scale.
6. The Mura compensation method of a display panel of any one of claims 1 to 5, wherein the step of obtaining and processing the Mura compensation data corresponding to each preset gray level in the display panel to obtain the Mura compensation data corresponding to each intermediate gray level further comprises:
and storing the Mura compensation data corresponding to each intermediate gray scale.
7. A display panel Mura compensation apparatus, comprising:
the intermediate gray scale acquisition unit is used for acquiring and processing Mura compensation data corresponding to each preset gray scale in the display panel to obtain the Mura compensation data corresponding to each intermediate gray scale; the numerical value of the intermediate gray scale is the average value of two adjacent preset gray scale numerical values;
the comparison gray scale obtaining unit is used for obtaining two gray scales closest to the gray scale to be compensated in each preset gray scale and each intermediate gray scale, and determining the two gray scales as a first comparison gray scale and a second comparison gray scale;
the supplementary gray scale processing unit is used for carrying out linear interpolation processing on the Mura compensation data corresponding to the first comparison gray scale and the Mura compensation data corresponding to the second comparison gray scale to obtain Mura compensation data corresponding to the gray scale to be compensated;
and the Mura compensation unit is used for performing Mura compensation on the display panel according to the Mura compensation data corresponding to the gray scale to be supplemented.
8. A display panel comprising a processing device and a light emitting device connected to the processing device;
the processing device is adapted to perform the steps of the display panel Mura compensation method of any of claims 1 to 6.
9. A display device characterized by comprising the display panel according to claim 8.
10. The display device according to claim 9, wherein the display panel is an OLED display panel, a Micro LED display panel, a Mini LED display panel, or a μ LED display panel.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112447137A (en) * | 2020-11-30 | 2021-03-05 | 昆山工研院新型平板显示技术中心有限公司 | Display panel compensation method and device and display device |
| CN114170935A (en) * | 2021-11-25 | 2022-03-11 | Tcl华星光电技术有限公司 | Display device compensation method and display device |
| CN114241979A (en) * | 2021-12-15 | 2022-03-25 | 惠州视维新技术有限公司 | Mura defect compensation method, device, equipment and storage medium |
| WO2022116330A1 (en) * | 2020-12-02 | 2022-06-09 | Tcl华星光电技术有限公司 | Compensation method and compensation device for display panel |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910483A (en) * | 2017-05-03 | 2017-06-30 | 深圳市华星光电技术有限公司 | A kind of mura phenomenons compensation method of display panel and display panel |
| CN106991982A (en) * | 2017-05-03 | 2017-07-28 | 深圳市华星光电技术有限公司 | A kind of mura phenomenons compensation method of display panel and display panel |
| CN107610642A (en) * | 2017-09-28 | 2018-01-19 | 武汉华星光电半导体显示技术有限公司 | A kind of 3Gamma bearing calibrations of OLED display modules and system |
| CN107863080A (en) * | 2017-11-29 | 2018-03-30 | 深圳市华星光电技术有限公司 | A kind of LCDs mura compensation methodes |
| CN108538264A (en) * | 2018-04-04 | 2018-09-14 | 深圳市华星光电技术有限公司 | The mura compensation methodes of display panel and device |
| CN110136649A (en) * | 2019-05-15 | 2019-08-16 | 霸州市云谷电子科技有限公司 | Mura compensation method, device, computer equipment and the storage medium of display panel |
| CN110189721A (en) * | 2019-06-20 | 2019-08-30 | 深圳市华星光电技术有限公司 | The mura compensation method of display panel and device |
| TW202011628A (en) * | 2018-08-31 | 2020-03-16 | 大陸商北京集創北方科技股份有限公司 | Intelligent group de-mura method and display device using same capable of reducing the required memory space, scaling down the chip size, and lowering the cost |
| CN111028809A (en) * | 2019-12-24 | 2020-04-17 | Tcl华星光电技术有限公司 | Mura phenomenon compensation method of spliced display panel and spliced display panel |
| CN111028779A (en) * | 2020-01-02 | 2020-04-17 | 昆山国显光电有限公司 | Display panel compensation method and device and display panel |
-
2020
- 2020-05-19 CN CN202010423947.9A patent/CN111540309A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910483A (en) * | 2017-05-03 | 2017-06-30 | 深圳市华星光电技术有限公司 | A kind of mura phenomenons compensation method of display panel and display panel |
| CN106991982A (en) * | 2017-05-03 | 2017-07-28 | 深圳市华星光电技术有限公司 | A kind of mura phenomenons compensation method of display panel and display panel |
| CN107610642A (en) * | 2017-09-28 | 2018-01-19 | 武汉华星光电半导体显示技术有限公司 | A kind of 3Gamma bearing calibrations of OLED display modules and system |
| CN107863080A (en) * | 2017-11-29 | 2018-03-30 | 深圳市华星光电技术有限公司 | A kind of LCDs mura compensation methodes |
| CN108538264A (en) * | 2018-04-04 | 2018-09-14 | 深圳市华星光电技术有限公司 | The mura compensation methodes of display panel and device |
| TW202011628A (en) * | 2018-08-31 | 2020-03-16 | 大陸商北京集創北方科技股份有限公司 | Intelligent group de-mura method and display device using same capable of reducing the required memory space, scaling down the chip size, and lowering the cost |
| CN110136649A (en) * | 2019-05-15 | 2019-08-16 | 霸州市云谷电子科技有限公司 | Mura compensation method, device, computer equipment and the storage medium of display panel |
| CN110189721A (en) * | 2019-06-20 | 2019-08-30 | 深圳市华星光电技术有限公司 | The mura compensation method of display panel and device |
| CN111028809A (en) * | 2019-12-24 | 2020-04-17 | Tcl华星光电技术有限公司 | Mura phenomenon compensation method of spliced display panel and spliced display panel |
| CN111028779A (en) * | 2020-01-02 | 2020-04-17 | 昆山国显光电有限公司 | Display panel compensation method and device and display panel |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112447137A (en) * | 2020-11-30 | 2021-03-05 | 昆山工研院新型平板显示技术中心有限公司 | Display panel compensation method and device and display device |
| WO2022116330A1 (en) * | 2020-12-02 | 2022-06-09 | Tcl华星光电技术有限公司 | Compensation method and compensation device for display panel |
| US11790863B2 (en) | 2020-12-02 | 2023-10-17 | Tcl China Star Optoelectronics Technology Co., Ltd. | Compensation method of display panel and compensation device thereof |
| CN114170935A (en) * | 2021-11-25 | 2022-03-11 | Tcl华星光电技术有限公司 | Display device compensation method and display device |
| CN114170935B (en) * | 2021-11-25 | 2023-08-01 | Tcl华星光电技术有限公司 | Display device compensation method and display device |
| CN114241979A (en) * | 2021-12-15 | 2022-03-25 | 惠州视维新技术有限公司 | Mura defect compensation method, device, equipment and storage medium |
| CN114241979B (en) * | 2021-12-15 | 2023-05-23 | 惠州视维新技术有限公司 | Mura defect compensation method, apparatus, device and storage medium |
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