CN114141187B - Mura compensation method, device and system and display equipment - Google Patents
Mura compensation method, device and system and display equipment Download PDFInfo
- Publication number
- CN114141187B CN114141187B CN202111484300.8A CN202111484300A CN114141187B CN 114141187 B CN114141187 B CN 114141187B CN 202111484300 A CN202111484300 A CN 202111484300A CN 114141187 B CN114141187 B CN 114141187B
- Authority
- CN
- China
- Prior art keywords
- compensation
- display panel
- data
- compensated
- picture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 238000004590 computer program Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 229920001621 AMOLED Polymers 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application relates to a Mura compensation method, a Mura compensation device, a Mura compensation system and display equipment. The method comprises the following steps: detecting whether the current display panel to be compensated is a first screen or not; according to the detection result, when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen; according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained; collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data; and according to the first picture compensation data, performing Mura compensation on the first compensation display panel. The Mura compensation of the display panel to be compensated is realized, the image quality of a 1Cycle demux compensation mode is improved, and the compensation operation time of the 2Cycle demux mode is reduced.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a Mura compensation method, apparatus, system, and display device.
Background
With the development of display technology, display panels are widely used in electronic devices such as televisions, computers, smart phones, and the like. With the pursuit of display image quality and display practicability, display panels are being developed in the directions of high density, high resolution, energy saving, high brightness, colorization and the like. In the production process of the display panel, the brightness of the display panel is uneven due to a plurality of technical defects and other problems, and various Mura are formed.
In the prior art, 1Cycle demux (one Cycle of uneven brightness compensation) is generally adopted to compensate and eliminate Mura of the display panel, but 1Cycle demux is adopted to compensate poor image quality, and Mura is difficult to completely eliminate; the 2Cycle Demura (two-Cycle uneven brightness compensation) method is adopted to compensate and eliminate the Mura of the display panel, and the problem of poor compensation image quality can be improved, but the Mura compensation time is long and the compensation efficiency is low.
Disclosure of Invention
Accordingly, it is necessary to compensate and eliminate Mura of the display panel by using the 1Cycle Demura method for the conventional technology, and there is a problem that the compensating image quality is poor and the Mura is difficult to completely eliminate; the method, the device and the system for compensating and eliminating the Mura of the display panel by adopting the 2Cycle Demura mode have the problems of long Mura compensation time and low compensation efficiency, and can improve the compensation image quality, reduce the Mura compensation time and improve the compensation efficiency.
In a first aspect, the present application provides a Mura compensation method, including:
detecting whether the current display panel to be compensated is a first screen or not;
according to the detection result, when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen;
according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained;
collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data;
and according to the first picture compensation data, performing Mura compensation on the first compensation display panel.
Optionally, after the step of detecting whether the current display panel to be compensated is the first panel, the method includes:
when the current display panel to be compensated is a first screen, acquiring second shooting data of a display picture of the current display panel to be compensated in preset gray level; obtaining second picture compensation data corresponding to the current display panel to be compensated according to the second shooting data;
and according to the second picture compensation data, mura compensation is carried out on the current display panel to be compensated, and the first compensation display panel is obtained.
Optionally, according to the detected result, before the step of obtaining the historical picture compensation data of the previous screen when the current display panel to be compensated is the non-first screen, the method includes:
acquiring the detection sequence information of the current display panel to be compensated; the detection sequence information comprises first detection information and non-first detection information;
and when the detection sequence information is non-first detection information, confirming that the current display panel to be compensated is a non-first screen.
Optionally, after the step of obtaining the first picture compensation data corresponding to the first compensation display panel according to the first shooting data, the method includes:
the first picture compensation data is stored in a database, and the historical picture compensation data of the previous screen is updated to the first picture compensation data.
Optionally, according to the detected result, before the step of obtaining the historical picture compensation data of the previous screen when the current display panel to be compensated is the non-first screen, the method includes:
and when the historical picture compensation data of the last screen in the database is queried, confirming that the current display panel to be compensated is a non-first screen.
Optionally, the step of obtaining the first picture compensation data corresponding to the first compensation display panel according to the first shooting data includes:
processing the first shooting data to obtain first Mura data;
and processing the first Mura data based on a Demura compensation algorithm to obtain first picture compensation data.
In a second aspect, the present application provides a Mura compensation device comprising:
the screen sequence detection unit is used for detecting whether the current display panel to be compensated is a first screen or not;
the historical data acquisition unit is used for acquiring historical picture compensation data of the previous screen when the current display panel to be compensated is a non-first screen according to the detection result;
the history data processing unit is used for carrying out Mura compensation on the current display panel to be compensated according to the history picture compensation data to obtain a first compensation display panel;
the first compensation data acquisition unit is used for acquiring first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data;
and the Mura compensation unit is used for carrying out Mura compensation on the first compensation display panel according to the first picture compensation data.
In a third aspect, the present application provides a Mura compensation system, comprising a controller for connecting a display panel to be compensated; the controller is configured to perform the steps of any of the Mura compensation methods described above.
Optionally, the Mura compensation system further comprises an image pickup device; the camera device is connected with the controller; the image pickup device is configured to pick up a display picture of the first compensation display panel in a preset gray level to obtain first shooting data.
In a fourth aspect, the present application provides a display device comprising a display panel and a Mura compensation system as described above; the Mura compensation system is connected with the display panel.
One of the above technical solutions has the following advantages and beneficial effects:
in the Mura compensation method, whether the current display panel to be compensated is a first screen is detected; according to the detection result, when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen; according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained; collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data; and according to the first picture compensation data, performing Mura compensation on the first compensation display panel. The Mura compensation of the display panel to be compensated is realized, the image quality of a 1Cycle demux compensation mode is improved, and the compensation operation time of the 2Cycle demux mode is reduced. According to the method and the device, whether the current display panel to be compensated is the first screen is judged, if not, the history picture compensation data of the last screen is used, mura compensation is directly carried out, and then demux compensation operation is carried out, so that the compensation image quality is improved, meanwhile, the Mura compensation time is shortened, and the compensation efficiency is improved.
Drawings
Fig. 1 is an application environment diagram of a Mura compensation method in an embodiment of the present application.
Fig. 2 is a schematic flow chart of a Mura compensation method according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a second flow chart of the Mura compensation method in the embodiment of the present application.
Fig. 4 is a flowchart illustrating a step of detecting a sequence of a slice screen in an embodiment of the present application.
Fig. 5 is a block diagram of a Mura compensation apparatus according to an embodiment of the present application.
Fig. 6 is an internal structural diagram of the Mura compensation system in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The Mura compensation method provided by the application can be applied to an application environment shown in fig. 1. The display device comprises a display panel 102 and a controller 104, wherein the controller 104 can be used for detecting whether the current display panel to be compensated is a first screen; according to the detection result, when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen; according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained; collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data; and according to the first picture compensation data, performing Mura compensation on the first compensation display panel. The display panel may be, but is not limited to, an AMOLED display panel, an AM Micro LED display panel, an AM Mini LED display panel, or an LCD display panel.
In one embodiment, as shown in fig. 2, a Mura compensation method is provided, which is illustrated by using the method applied to the controller 104 in fig. 1, and includes:
step S210, detecting whether the current display panel to be compensated is a first screen.
The current display panel to be compensated may be, but is not limited to, an AMOLED display panel, an AM Micro LED display panel, an AM Mini LED display panel or an LCD display panel. The first screen refers to a display panel which performs Demura compensation processing after the system is powered on. After the system is powered on and started, the display panels to be compensated in the same batch can be subjected to demux compensation, the display panel to be compensated which enters the system for demux compensation firstly is confirmed to be a first panel, the display panel to be compensated which enters the system for demux compensation secondly is confirmed to be a second panel, and so on, and the display panel to be compensated which enters the system for demux compensation secondly is confirmed to be an nth panel (wherein N is a positive integer).
In one example, after the controller establishes a connection with the current display panel to be compensated, the controller may detect a history compensation record in the database, and check whether a corresponding batch of display panels to be compensated corresponding to the current display panel to be compensated has completed Demura compensation processing, so as to determine whether the current display panel to be compensated is the first panel.
Step S220, according to the detected result, when the current display panel to be compensated is a non-first screen, the historical picture compensation data of the last screen is obtained.
The non-first screen refers to a display panel which performs Demura compensation processing on the second, third or N-th screen after the system is powered on and started. After the system is powered on and started, the display panels to be compensated in the same batch can be subjected to demux compensation, the display panel to be compensated which enters the system for demux compensation firstly is confirmed to be a first screen, the display panel to be compensated which enters the system for demux compensation secondly is confirmed to be a second screen, and so on, and the display panel to be compensated which enters the system for demux compensation secondly is confirmed to be an nth screen (wherein, N is a positive integer greater than 2). I.e. the non-first screen refers to the second, third or nth screen. For example, if the current display panel to be compensated is the second panel, the last panel corresponding to the current display panel to be compensated is the first panel; if the current display panel to be compensated is the N-th screen, the last screen corresponding to the current display panel to be compensated is the N-1 th screen.
In one example, the controller detects whether the current display panel to be compensated is a first panel, and obtains historical picture compensation data corresponding to a last panel of the current display panel to be compensated when the current display panel to be compensated is a non-first panel according to a detection result.
Step S230, according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and the first compensation display panel is obtained.
The history picture compensation data refers to Demura data corresponding to the previous screen. The controller obtains demux data of the corresponding previous screen when detecting that the current display panel to be compensated is a non-first screen, and directly burns the demux data into the Flash ROM, so that the first Mura compensation of the current display panel to be compensated is realized, and the compensation time of the first Mura compensation is reduced. The first compensation display panel refers to the display panel to be compensated after the first Mura compensation.
Step S240, collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; and obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data.
The display picture with preset gray level can be selected in advance and input into the first compensation display panel for display, then the picture displayed by the first compensation display panel is shot through the image pickup device, and further the controller can acquire first shooting data of the display picture with the preset gray level of the first compensation display panel. The controller can process the first shooting data according to the acquired first shooting data to acquire first picture compensation data corresponding to the first compensation display panel. The first picture compensation data is corresponding Demura data. The first photographing data is image data.
For example, the image pickup apparatus may employ a CCD camera of high resolution and high accuracy. Then, the CCD camera shoots the picture displayed by the first compensation display panel, and the controller can acquire first shooting data of the display picture of the first compensation display panel in preset gray scale. The controller can process the first shooting data according to the acquired first shooting data to acquire first picture compensation data corresponding to the first compensation display panel.
Step S250, mura compensation is performed on the first compensation display panel according to the first picture compensation data.
The controller can directly burn the first picture compensation data into the Flash ROM according to the first picture compensation data obtained by processing, so as to realize the second Mura compensation of the current display panel to be compensated, further reduce the compensation time of the first Mura compensation and improve the picture quality of the compensated display picture.
In the above embodiment, whether the current display panel to be compensated is the first screen is detected; according to the detection result, when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen; according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained; collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data; and according to the first picture compensation data, performing Mura compensation on the first compensation display panel. The Mura compensation of the display panel to be compensated is realized, the image quality of a 1Cycle demux compensation mode is improved, and the compensation operation time of the 2Cycle demux mode is reduced. And judging whether the current display panel to be compensated is a first screen, if not, using the historical picture compensation data of the last screen to directly carry out Mura compensation, and then carrying out Demura compensation operation, thereby improving the compensation image quality, reducing the Mura compensation time and improving the compensation efficiency.
In one embodiment, as shown in fig. 3, a Mura compensation method is provided, which is illustrated by using the method applied to the controller 104 in fig. 1, and includes:
step S310, detecting whether the current display panel to be compensated is the first screen.
Step S320, when the current display panel to be compensated is a first screen, collecting second shooting data of the display picture of the current display panel to be compensated in preset gray level; obtaining second picture compensation data corresponding to the current display panel to be compensated according to the second shooting data;
the second picture compensation data is corresponding Demura data. The second photographing data is corresponding image data.
When the controller detects that the current display panel to be compensated is a first screen, a display picture with preset gray level can be selected in advance and input into the current display panel to be compensated for display, then the picture displayed by the current display panel to be compensated is shot through the camera device, and further the controller can acquire second shooting data of the display picture with preset gray level of the current display panel to be compensated. The controller can process the second shooting data according to the acquired second shooting data to acquire second picture compensation data corresponding to the current display panel to be compensated.
For example, the image pickup apparatus may employ a CCD camera of high resolution and high accuracy. Then, the picture displayed by the current display panel to be compensated is shot by the CCD camera, and further the controller can acquire second shooting data of the display picture of the current display panel to be compensated in preset gray level. The controller can process the second shooting data according to the acquired second shooting data to acquire second picture compensation data corresponding to the current display panel to be compensated.
Step S330, according to the second picture compensation data, mura compensation is performed on the current display panel to be compensated, so as to obtain a first compensated display panel.
The controller can directly burn the second picture compensation data into the Flash ROM according to the second picture compensation data obtained by processing, so as to realize the first Mura compensation of the current display panel to be compensated when the current display panel to be compensated is the first screen.
Step S340, according to the detected result, when the current display panel to be compensated is a non-first screen, the historical picture compensation data of the last screen is obtained.
Step S350, according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and the first compensation display panel is obtained.
Step S360, collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; and obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data.
Step S370, mura compensation is performed on the first compensated display panel according to the first picture compensation data.
The specific content processes of the above steps S310, S340, S350, S360 and S370 may refer to the above content, and will not be described herein.
In the above embodiment, whether the current display panel to be compensated is the first screen is detected; according to the detection result, when the current display panel to be compensated is a first screen, acquiring second shooting data of a display picture of the current display panel to be compensated in preset gray level; obtaining second picture compensation data corresponding to the current display panel to be compensated according to the second shooting data; according to the second picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained; when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen; according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained; collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data; and according to the first picture compensation data, performing Mura compensation on the first compensation display panel. The Mura compensation of the display panel to be compensated is realized, the image quality of a 1Cycle demux compensation mode is improved, and the compensation operation time of the 2Cycle demux mode is reduced. Judging whether the current display panel to be compensated is a first screen or not, if so, performing 2 rounds of Demura compensation operation; if not, the history picture compensation data of the last screen is used for directly performing Mura compensation, and then performing Demura compensation operation, so that the compensation image quality is improved, the Mura compensation time is shortened, and the compensation efficiency is improved.
In one example, as shown in fig. 4, according to the detected result, before the step of obtaining the historical picture compensation data of the previous screen when the current display panel to be compensated is the non-first screen, the method includes:
step S410, obtaining the detection sequence information of the current display panel to be compensated; wherein the detection sequence information includes first detection information and non-first detection information.
The display panels to be compensated in the same batch can be sequenced in advance, and corresponding detection sequence information is input. For example, the detection sequence information of the display panel to be compensated corresponding to the first screen is 0001, the detection sequence information of the display panel to be compensated corresponding to the second screen is 0002, and so on, and the detection sequence information of the display panel to be compensated corresponding to the nth screen is 0000N. Wherein N is a positive integer greater than 2. The first detection information refers to detection order information (e.g., 0001) of the display panel to be compensated corresponding to the first panel, and the non-first detection information refers to detection order information (e.g., 0002, 0003, 000N) of the display panel to be compensated corresponding to the second, third, or nth panel.
Step S420, when the detection sequence information is non-first detection information, confirming that the current display panel to be compensated is a non-first screen.
The controller can process the acquired detection sequence information, and confirms that the current display panel to be compensated is a non-first screen when the detection sequence information is non-first detection information according to the processing result. For example, if the detection order information is 0002, 0003, or 000N, it is determined that the detection order information is non-first detection information, and the current display panel to be compensated is confirmed to be a non-first panel. If the detection sequence information is 0001, determining that the detection sequence information is the first detection information, and confirming that the current display panel to be compensated is the first screen.
In one example, after the step of obtaining the first picture compensation data corresponding to the first compensation display panel according to the first photographing data, the method includes:
the first picture compensation data is stored in a database, and the historical picture compensation data of the previous screen is updated to the first picture compensation data.
Wherein the database may be used to store historical picture compensation data. The controller updates the historical picture compensation data of the last screen in the database into the first picture compensation data according to the first picture compensation data obtained through processing.
Illustratively, after finishing Mura compensation of all display panels to be compensated for in the same batch, the historical picture compensation data in the database is emptied.
In one example, according to the detected result, before the step of obtaining the historical picture compensation data of the previous screen when the current display panel to be compensated is the non-first screen, the method includes:
and when the historical picture compensation data of the last screen in the database is queried, confirming that the current display panel to be compensated is a non-first screen.
For example, the controller may determine whether the current display panel to be compensated is the first panel by querying whether there is historical screen compensation data of the corresponding previous panel in the database. When the controller inquires that the corresponding historical picture compensation data of the last screen exists in the database, the controller confirms that the current display panel to be compensated is a non-first screen. If the controller does not inquire corresponding historical picture compensation data, confirming that the current display panel to be compensated is a first screen, further realizing quick judgment of whether the current display panel to be compensated is a non-first screen, when the current display panel to be compensated is a non-first screen, using the historical compensation picture data (namely Demura data processed by adopting a 2Cycle demux mode) of the last screen by the current display panel to be compensated, and directly burning the historical compensation picture data into a Flash ROM to perform the first Mura compensation; then the Demura operation is carried out again, the second Mura compensation is carried out, and the picture quality is improved, and meanwhile, the compensation time of a 2Cycle Demura mode is reduced, and the picture compensation efficiency is improved.
In one example, the step of obtaining the first picture compensation data corresponding to the first compensation display panel according to the first photographing data includes:
processing the first shooting data to obtain first Mura data; and processing the first Mura data based on a Demura compensation algorithm to obtain first picture compensation data.
The controller can process the acquired first shooting data to further obtain first Mura data. For example, the controller may perform pixel color distribution feature analysis on the first shot data to obtain image feature information, and perform corresponding Mura detection algorithm processing on the image feature information, so as to obtain first Mura data. The controller processes the first Mura data according to the acquired first Mura data by a corresponding demux compensation algorithm, so as to obtain first picture compensation data, burns the first picture compensation data into a Flash ROM, performs the second Mura compensation, reduces the compensation time of a 2Cycle demux mode while realizing the improvement of the image quality, and improves the picture compensation efficiency.
It should be understood that, although the steps in the flowcharts of fig. 2-4 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 2-4 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily occur sequentially, but may be performed alternately or alternately with at least a portion of the sub-steps or stages of other steps or steps.
In one embodiment, as shown in fig. 5, there is provided a Mura compensation apparatus comprising:
the tile order detecting unit 510 is configured to detect whether the current display panel to be compensated is a first tile.
The historical data obtaining unit 520 is configured to obtain, according to the detection result, the historical picture compensation data of the previous screen when the current display panel to be compensated is the non-first screen.
The history data processing unit 530 is configured to perform Mura compensation on the current display panel to be compensated according to the history picture compensation data, so as to obtain a first compensated display panel.
A first compensation data acquisition unit 540, configured to acquire first shooting data of a display screen of a first compensation display panel in a preset gray scale; and obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data.
The Mura compensation unit 550 is configured to perform Mura compensation on the first compensated display panel according to the first picture compensation data.
In one example, the Mura compensation apparatus is further configured to: when the current display panel to be compensated is a first screen, acquiring second shooting data of a display picture of the current display panel to be compensated in preset gray level; obtaining second picture compensation data corresponding to the current display panel to be compensated according to the second shooting data; and according to the second picture compensation data, mura compensation is carried out on the current display panel to be compensated, and the first compensation display panel is obtained.
In one example, the Mura compensation apparatus is further configured to: acquiring the detection sequence information of the current display panel to be compensated; the detection sequence information comprises first detection information and non-first detection information; and when the detection sequence information is non-first detection information, confirming that the current display panel to be compensated is a non-first screen.
In one example, the Mura compensation apparatus is further configured to: the first picture compensation data is stored in a database, and the historical picture compensation data of the previous screen is updated to the first picture compensation data.
In one example, the Mura compensation apparatus is further configured to: and when the historical picture compensation data of the last screen in the database is queried, confirming that the current display panel to be compensated is a non-first screen.
In one example, the first compensation data acquisition unit is further configured to: processing the first shooting data to obtain first Mura data; and processing the first Mura data based on a Demura compensation algorithm to obtain first picture compensation data.
For specific limitations of the Mura compensation apparatus, reference may be made to the above limitation of the Mura compensation method, and no further description is given here. The various modules in the Mura compensation apparatus described above may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules can be embedded in the controller in the Mura compensation system in a hardware form or independent from the controller in the Mura compensation system, and can also be stored in a memory in the Mura compensation system in a software form, so that the controller can call and execute the operations corresponding to the above modules.
In one embodiment, a Mura compensation system is provided, the Mura compensation system including a controller for connecting a display panel to be compensated; the controller is configured to perform the steps of any of the Mura compensation methods described above.
In one example, the controller, when executing a computer program, may implement the steps of:
detecting whether the current display panel to be compensated is a first screen or not; according to the detection result, when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen; according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained; collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data; and according to the first picture compensation data, performing Mura compensation on the first compensation display panel.
In the above embodiment, the controller detects whether the current display panel to be compensated is the first panel; according to the detection result, when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen; according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained; collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data; and according to the first picture compensation data, performing Mura compensation on the first compensation display panel. The Mura compensation of the display panel to be compensated is realized, the image quality of a 1Cycle demux compensation mode is improved, and the compensation operation time of the 2Cycle demux mode is reduced. And judging whether the current display panel to be compensated is a first screen, if not, using the historical picture compensation data of the last screen to directly carry out Mura compensation, and then carrying out Demura compensation operation, thereby improving the compensation image quality, reducing the Mura compensation time and improving the compensation efficiency.
In one example, the Mura compensation system further includes an imaging device; the camera device is connected with the controller; the image pickup device is configured to pick up a display picture of the first compensation display panel in a preset gray level to obtain first shooting data.
Wherein the image pick-up device may be a CCD camera. The image pickup device can be used for shooting a display picture of the current display panel to be compensated in preset gray level to obtain second shooting data. The display panel to be compensated may be, but is not limited to, an AMOLED display panel, an AM Micro LED display panel, an AM Mini LED display panel or an LCD display panel.
In one embodiment, a display device is provided, the display device comprising a display panel and a Mura compensation system as described above; the Mura compensation system is connected with the display panel.
The display device may be, but is not limited to, various AMOLED display devices, AM Micro LED display devices, AM Mini LED display devices, or LCD display devices. The internal structural diagram of the display device may be as shown in fig. 6. The display device includes a Mura compensation system and a display panel. The Mura compensation system comprises a controller and a memory which are connected through a system bus; the display panel may also include a network interface and an input device. Wherein the controller of the Mura compensation system is configured to provide computing and control capabilities. The memory of the Mura compensation system comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the display panel is used for communicating with an external terminal through network connection. The computer program is executed by a processor to implement a Mura compensation method. The display panel may be, but is not limited to, an AMOLED display panel, an AM Micro LED display panel, an AM Mini LED display panel, or an LCD display panel.
It will be appreciated by those skilled in the art that the structure shown in fig. 6 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the display device to which the present application is applied, and that a particular display device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
detecting whether the current display panel to be compensated is a first screen or not; according to the detection result, when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen; according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel is obtained; collecting first shooting data of a display picture of a first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data; and according to the first picture compensation data, performing Mura compensation on the first compensation display panel.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile 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), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A Mura compensation method, comprising:
detecting whether the current display panel to be compensated is a first screen or not;
according to the detection result, when the current display panel to be compensated is a non-first screen, acquiring historical picture compensation data of the last screen;
according to the historical picture compensation data, mura compensation is carried out on the current display panel to be compensated, and a first compensation display panel corresponding to the non-first panel is obtained;
collecting first shooting data of a display picture of the first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data;
and according to the first picture compensation data, performing Mura compensation on the first compensation display panel.
2. The Mura compensation method according to claim 1, wherein after the step of detecting whether the current display panel to be compensated is the first panel, the method comprises:
when the current display panel to be compensated is a first screen, acquiring second shooting data of a display picture of the current display panel to be compensated in preset gray level; obtaining second picture compensation data corresponding to the current display panel to be compensated according to the second shooting data;
and according to the second picture compensation data, mura compensation is carried out on the current display panel to be compensated, and the first compensation display panel corresponding to the first screen is obtained.
3. The Mura compensation method according to claim 1, wherein the step of acquiring the history picture compensation data of the previous screen when the current display panel to be compensated is the non-first screen according to the result of the detection includes:
acquiring the detection sequence information of the current display panel to be compensated; wherein the detection sequence information comprises first detection information and non-first detection information;
and when the detection sequence information is non-first detection information, confirming that the current display panel to be compensated is a non-first screen.
4. The Mura compensation method according to claim 1, wherein after the step of obtaining the first picture compensation data corresponding to the first compensated display panel according to the first photographing data, the method comprises:
and storing the first picture compensation data in a database, and updating the historical picture compensation data of the previous screen into the first picture compensation data.
5. The Mura compensation method according to claim 4, wherein the step of acquiring the history picture compensation data of the previous screen when the current display panel to be compensated is the non-first screen according to the result of the detection comprises:
and when the historical picture compensation data of the last screen in the database is queried, confirming that the current display panel to be compensated is a non-first screen.
6. The Mura compensation method according to claim 1, wherein the step of obtaining first picture compensation data corresponding to the first compensated display panel from the first photographing data includes:
processing the first shooting data to obtain first Mura data;
and processing the first Mura data based on a demux compensation algorithm to obtain the first picture compensation data.
7. A Mura compensation apparatus comprising:
the screen sequence detection unit is used for detecting whether the current display panel to be compensated is a first screen or not;
the historical data acquisition unit is used for acquiring historical picture compensation data of the last screen when the current display panel to be compensated is a non-first screen according to the detection result;
the historical data processing unit is used for carrying out Mura compensation on the current display panel to be compensated according to the historical picture compensation data to obtain a first compensation display panel;
the first compensation data acquisition unit is used for acquiring first shooting data of a display picture of the first compensation display panel in preset gray scale; obtaining first picture compensation data corresponding to the first compensation display panel according to the first shooting data;
and the Mura compensation unit is used for carrying out Mura compensation on the first compensation display panel according to the first picture compensation data.
8. A Mura compensation system comprising a controller for connecting a display panel to be compensated; the controller is configured to perform the steps of the Mura compensation method of any one of claims 1 to 6.
9. The Mura compensation system according to claim 8, further comprising an image pickup device; the camera device is connected with the controller; the image pickup device is configured to pick up a display picture of the first compensation display panel in a preset gray level to obtain the first shooting data.
10. A display device comprising a display panel and a Mura compensation system according to claim 8 or 9;
the Mura compensation system is connected with the display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111484300.8A CN114141187B (en) | 2021-12-07 | 2021-12-07 | Mura compensation method, device and system and display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111484300.8A CN114141187B (en) | 2021-12-07 | 2021-12-07 | Mura compensation method, device and system and display equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114141187A CN114141187A (en) | 2022-03-04 |
| CN114141187B true CN114141187B (en) | 2024-02-06 |
Family
ID=80385025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111484300.8A Active CN114141187B (en) | 2021-12-07 | 2021-12-07 | Mura compensation method, device and system and display equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114141187B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609818B (en) * | 2022-03-10 | 2022-12-09 | 重庆惠科金渝光电科技有限公司 | Display compensation method of curved surface display panel, curved surface screen and display device |
| CN115061294A (en) * | 2022-06-28 | 2022-09-16 | Tcl华星光电技术有限公司 | Method and system for repairing defects of liquid crystal display panel and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180061511A (en) * | 2016-11-29 | 2018-06-08 | 엘지디스플레이 주식회사 | Method For Processing Compensation Display Defect And Display Device Using The Same |
| CN108877740A (en) * | 2018-07-25 | 2018-11-23 | 昆山国显光电有限公司 | Obtain method, apparatus, computer equipment and the storage medium of Mura offset data |
| CN109147668A (en) * | 2018-09-25 | 2019-01-04 | 京东方科技集团股份有限公司 | External compensation method, driving unit and the display panel of display panel |
| CN111105760A (en) * | 2018-10-26 | 2020-05-05 | 陕西坤同半导体科技有限公司 | Mura compensation method and system of display equipment and display equipment |
-
2021
- 2021-12-07 CN CN202111484300.8A patent/CN114141187B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180061511A (en) * | 2016-11-29 | 2018-06-08 | 엘지디스플레이 주식회사 | Method For Processing Compensation Display Defect And Display Device Using The Same |
| CN108877740A (en) * | 2018-07-25 | 2018-11-23 | 昆山国显光电有限公司 | Obtain method, apparatus, computer equipment and the storage medium of Mura offset data |
| CN109147668A (en) * | 2018-09-25 | 2019-01-04 | 京东方科技集团股份有限公司 | External compensation method, driving unit and the display panel of display panel |
| CN111105760A (en) * | 2018-10-26 | 2020-05-05 | 陕西坤同半导体科技有限公司 | Mura compensation method and system of display equipment and display equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114141187A (en) | 2022-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114141187B (en) | Mura compensation method, device and system and display equipment | |
| CN108877740B (en) | Method and device for acquiring Mura compensation data, computer equipment and storage medium | |
| US10636345B2 (en) | Method of compensating in display panel, driving unit and display panel | |
| JP2020518849A (en) | Display panel unevenness compensation method and display panel | |
| CN101304485B (en) | Method and apparatus for compensating bad point | |
| JP2016525840A (en) | System and method for correcting image artifacts | |
| CN114296678B (en) | Special-shaped screen display method, device, display control equipment and storage medium | |
| CN109147696B (en) | Data processing method, display device and computer readable storage medium | |
| CN111507298B (en) | Face detection method, device, computer equipment and storage medium | |
| CN111445487B (en) | Image segmentation method, device, computer equipment and storage medium | |
| CN114173062B (en) | Image processing method, device, equipment and storage medium for image pickup equipment | |
| CN109859142B (en) | Image brightness adjusting method and device, computer equipment and storage medium | |
| TW201334526A (en) | Adaptive image processing method and related apparatus | |
| CN113888438A (en) | Image processing method, device and storage medium | |
| CN106971386B (en) | Method and device for judging image integrity and page loading degree and client equipment | |
| CN109279542A (en) | Fork truck enters to pitch method, apparatus, computer equipment and storage medium | |
| CN113132718B (en) | Day and night type image pickup device switching abnormality detection method, device, equipment and storage medium | |
| KR20210155695A (en) | Image processing system for image quality tuning and method of image quality tuning | |
| CN114708250A (en) | Image processing method, device and storage medium | |
| US11782850B2 (en) | Information processing method, server, terminal, and computer storage medium | |
| CN112734719A (en) | Dead pixel detection method of image sensor, storage medium and shooting device | |
| CN115691390B (en) | Display panel compensation method and device and display device | |
| CN111681201B (en) | Image processing method, device, computer equipment and storage medium | |
| CN113538499B (en) | Image threshold segmentation method, device, computer equipment and storage medium | |
| CN110992883A (en) | Display compensation method, device, equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |