CN106782264B - Mould group color spot prosthetic device and method based on PCGPU - Google Patents
Mould group color spot prosthetic device and method based on PCGPU Download PDFInfo
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- CN106782264B CN106782264B CN201611226161.8A CN201611226161A CN106782264B CN 106782264 B CN106782264 B CN 106782264B CN 201611226161 A CN201611226161 A CN 201611226161A CN 106782264 B CN106782264 B CN 106782264B
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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
- G09G3/2007—Display of intermediate tones
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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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 invention discloses a kind of mould group color spot prosthetic device and method based on PC GPU, its square law device includes GPU data processing module: utilizing the parallel processing capability of GPU, the picture mapping relations of camera and mould group are obtained according to the brightness value matrix of positioning image frame, and calculate the Mura assessed value of picture to be repaired, judge whether the gray-scale intensity of picture to be repaired meets the requirements, calculates the Mura offset data matrix of picture to be repaired；GPU image synthesis module: it for synthesizing Mura offset data matrix with the brightness value matrix of picture to be repaired, forms Mura and compensates image；GPU image output interface: for Mura compensation image to be converted to picture signal video stream to mould group.The present invention directly can produce and export Mura compensating image signals by PC GPU, without display effect Mura repair data being written in the Flash IC of complex plane display module to be repaired after complex plane display module to be repaired can be allowed to show Mura reparation, improve plane display module producing line Mura defects remediation efficiency.
Description
Technical field
The present invention relates to flat display fields, and in particular to a kind of mould group color spot prosthetic device and side based on PC GPU
Method.
Background technique
Flat-panel screens is widely used at present in people's consumption electronic product used in everyday, such as TV, electricity
Brain, mobile phone, plate etc..Plane display module is the main body component part of flat-panel screens, and manufacturing process is complicated, needs multiple tracks
Process, therefore inevitably will appear various display defects in the fabrication process, and these display defects it is relatively conventional be Mura (color
Spot) defect.Mura defects are the different colours arrived by visual experience or brightness under same light source and the identical picture of background color
Difference drastically influence the quality of flat-panel screens to bring visual discomfort.
The existing the relevant technologies specifically for plane display module Mura defects reparation at present, such as Chinese patent " liquid crystal
Show the bad display repair system and restorative procedure of panel " (publication number CN103761933A), a kind of Chinese patent " elimination liquid crystal
The method and apparatus of display Mura " (patent No. CN201310695713.X), but these Mura defects recovery techniques be all by
Mura repair data is written in the Flash IC of complex plane display module to be repaired, then the Mura of complex plane display module to be repaired
Compensation chips, which read Mura repair data from Flash IC and are output on display panel, shows compensated picture.
Firstly, it is limited to the limitation of the Mura compensation chips BlockSize of plane display module, aforesaid way display compensation
The compensation precision of picture afterwards is limited.Secondly, to generally use single channel SPI total by the Flash IC of complex plane display module to be repaired at present
Line is written and read, and due to the limitation of spi bus bandwidth, the time that Mura repair data is burnt to Flash IC is longer, it is above-mentioned this
Kind first from external SPI adapter to Flash be written data, after by Mura compensation chips from Flash IC be loaded into data process consume
When it is longer, be unfavorable for plane display module producing line Mura defects and quickly repair.These defects have mould group color spot repairing effect
It seriously affects, restricts the efficiency that mould group reads Mura repair data.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of, and the mould group color spot reparation based on PC GPU fills
It sets and method, offset data is calculated by GPU and output Mura compensates image, reaches the compensation precision for reinforcing picture, promotion is repaired
The effect of multiple efficiency.
To achieve the above object, the present invention provides a kind of mould group color spot prosthetic device based on PC GPU, special character
It is, including GPU data processing module, GPU image synthesis module and the GPU image output interface being set in GPU；
The GPU data processing module utilizes the parallel processing capability of GPU, according to the brightness value matrix of positioning image frame
The picture mapping relations of camera and mould group are obtained, and are assessed according to the Mura that the picture mapping relations calculate picture to be repaired
Value, judges whether the gray-scale intensity of the picture to be repaired meets the requirements, and calculates the Mura offset data of the picture to be repaired
Matrix；
The GPU image synthesis module is used for the Mura offset data matrix of the picture to be repaired and picture to be repaired
Brightness value matrix synthesis, formed Mura compensate image；
The GPU image output interface is used to Mura compensation image being converted to picture signal video stream to mould
Group.
It further, further include the image zooming-out module being set in CPU and image transmitting interface.
Described image extraction module is used to obtain the data flow of positioning picture, picture to be repaired from camera, and decodes respectively
GPU data processing module is sent to for the brightness value matrix of positioning picture, the brightness value matrix of picture to be repaired；
Described image coffret is used to obtain Mura compensating image data from the GPU data processing module and pass through
SPI adapter is burned onto the Flash IC of mould group.
Further, the interface type of the GPU image output interface is determined by the model and specification of GPU, including but
It is not limited to DP, VGA, HDMI, DVI.
The present invention additionally provides a kind of mould group color spot restorative procedure based on PC GPU, is characterized in that, including such as
Lower step:
1) the brightness value matrix for acquiring picture to be repaired, is converted to panel end brightness value matrix according to picture mapping relations；
2) Mura assessed value is calculated using GPU, if the Mura assessed value is within preset range, reparation terminates；If institute
Mura assessed value is stated not within preset range, goes to step 3)；
3) the Mura offset data matrix of the picture to be repaired is calculated using GPU；
4) Mura offset data matrix is synthesized using GPU with panel end brightness value matrix, forms Mura and compensates image；
5) Mura compensation image is converted into picture signal video stream to mould group using GPU；
6) step 1)~5 are repeated) until repairing terminates.
Preferably, the picture mapping relations in the step 1) are obtained by the brightness value matrix of positioning picture.
Preferably, after reparation, Mura offset data matrix, then be burned onto mould for Mura offset data matrix if it exists
The Flash IC of group.
Preferably, calculate in the step 3) the Mura offset data matrix of the picture to be repaired the specific steps are,
It first subtracts background data and obtains defective data, repair parameter multiplied by Demura with the defective data, obtain Mura offset data
Matrix.
Preferably, it is to repair coefficient or coefficient matrix that the Demura, which repairs parameter,.
Preferably, the compensating image signals are inserted by the Mura offset data matrix of several different grayscale according to linear
The mode of value generates.
Preferably, the Mura offset data matrix is preset Mura offset data matrix group set.
The present invention has the beneficial effect that compared with the prior art
1) present invention directly can produce and export Mura compensating image signals by PC GPU, be not necessarily to Mura repair data
It is written in the Flash IC of complex plane display module to be repaired after complex plane display module to be repaired can be allowed to show that Mura is repaired
Display effect, save the SPI write time, improve plane display module producing line Mura defects remediation efficiency；
2) present invention can be in real time converted to Mura repair data all by the function of simulation DeMura compensation chips
The Mura compensating image signals that the plane display module of specification can identify；
3) present invention can simulate different BlockSize and not by the function of simulation different size Mura compensation chips
With the compensation effect of lane quantity, more single Mura compensation chips use more flexible；
4) present invention is for data processing using GPU, and data processing time is big compared with the time that other are for data processing using CPU
It is big to reduce, to greatly reduce repair time.
Detailed description of the invention
Fig. 1 is that the present invention is based on the circuit block diagrams of the mould group color spot prosthetic device of PC GPU.
Fig. 2 is that the present invention is based on the flow charts of the mould group color spot restorative procedure of PC GPU.
Fig. 3 is the circuit block diagram of mould group color spot prosthetic device in the prior art.
In figure: GPU1, GPU data processing module 11, GPU image synthesis module 12, GPU image output interface 13, CPU2,
Image zooming-out module 21, image transmitting interface 22, camera 3, mould group 4, Flash IC41, SPI adapter 5.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, a kind of mould group color spot prosthetic device based on PC GPU provided by the present invention, including be set to
GPU data processing module 11, GPU image synthesis module 12 and GPU image output interface 13 in GPU1, further include being set to
Image zooming-out module 21 and image transmitting interface 22 in CPU2.
Image zooming-out module 21 is used to obtain the data flow of positioning picture, picture to be repaired from camera 3, and is decoded as respectively
The brightness value matrix of the brightness value matrix, picture to be repaired that position picture is sent to GPU data processing module 11.
Image transmitting interface 22 is used to obtain Mura compensating image data from GPU data processing module 11 and be fitted by SPI
Orchestration 5 is burned onto the Flash IC41 of mould group 4.
GPU data processing module 11 is obtained using the parallel processing capability of GPU according to the brightness value matrix of positioning image frame
The picture mapping relations of camera 3 Yu mould group 4 are taken, and calculate the Mura assessed value of picture to be repaired according to picture mapping relations, are sentenced
Whether the gray-scale intensity of picture to be repaired of breaking meets the requirements, and calculates the Mura offset data matrix of picture to be repaired.
GPU image synthesis module 12 is used for the brightness of the Mura offset data matrix of picture to be repaired and picture to be repaired
Value matrix synthesis, forms Mura compensating image data.
GPU image output interface 13 is sent to mould group 4 for Mura compensating image data to be converted to picture signal.GPU
The interface type of image output interface 13 determines by the model and specification of GPU1, including but not limited to DP, VGA, HDMI, DVI.
As shown in Fig. 2, the step of realizing the mould group color spot restorative procedure based on PC GPU using apparatus of the present invention is as follows:
1) data flow for the positioning picture that the image zooming-out module 21 of CPU2 is shown from the mould group 4 that camera 3 obtains shooting, and
Data flow is decoded, the brightness value matrix of positioning picture is generated, then the brightness value matrix for positioning picture is sent to GPU number
According to processing module 11.
2) GPU data processing module 11 calculates camera 3 according to the brightness value matrix of positioning picture and maps to 4 end picture of mould group
Relationship.Mapping mode includes angle point mapping and puts to mapping.
3) data flow for the picture to be repaired that the image zooming-out module 21 of CPU2 is shown from the mould group 4 that camera 3 obtains shooting,
And be decoded data flow, the brightness value matrix of picture to be repaired is generated, then the brightness value matrix of picture to be repaired is sent
To GPU data processing module 11.
3 shooting picture of camera includes positioning picture and picture to be compensated, and the resolution ratio of image frame data is 3840*
2160.Positioning picture refers to that the picture for calculating camera to mould group end picture mapping relations, picture to be compensated refer to certain
One grayscale pure color picture.It should be noted that the image frame data can be gray-value image data, it is mono- to be also possible to RGB
Color image data.
4) GPU data processing module 11 turns the brightness value matrix of the picture to be repaired of acquisition according to picture mapping relations
It is changed to panel end brightness value matrix.
5) GPU data processing module 11 calculates Mura assessed value, and Mura assessed value is a class value, represents different judgements and refers to
Mark, system determine that process continues to walk downward or terminates according to whether assessed value meets index.
6) within preset range, if reparation terminates Mura assessed value, step 11 is gone to；If Mura assessed value is not default
Within range, step 7) is gone to.
7) GPU data processing module 11 calculates Mura offset data square according to the panel end brightness value matrix of picture to be repaired
Battle array.The specific steps are first subtract background data and obtain defective data, repair parameter multiplied by Demura with defective data, obtain
Mura offset data matrix.It can be a certain reparation Coefficient m that Demura, which repairs parameter, be also possible to be with defective data same order
Matrix number.
8) GPU image synthesis module 12 receives the panel end brightness value matrix and Mura offset data square of picture to be repaired
Battle array, Mura offset data matrix is synthesized with panel end brightness value matrix, is formed Mura and is compensated image.Compensating image signals can be with
It is generated in such a way that the Mura offset data matrix of multiple and different grayscale is according to linear interpolation.
Such as:
The corresponding grayscale of Mura offset data matrix 1 is 50, and the submatrix of its a 3*3 size is
- 1,5,6
3,2,0
6,7,8
The corresponding grayscale of Mura offset data matrix 2 is 100, and the submatrix of its same position is
3,7,8
7,2,0
8,9,6
If the submatrix of brightness value same position is
75,75,75
75,75,75
75,75,75
In the way of linear interpolation, the brightness value of the Mura compensation image same position of generation is
Mura offset data matrix group is also possible to default in the Demura Table of BlockSize, i.e. Mura compensates number
According to matrix group set.
9) Mura compensation image is converted to picture signal video stream to mould group 4 by GPU image output interface 13.
10) camera 3 continues to shoot the mould group 4 after color spot is repaired and shows that picture as picture to be repaired is sent to CPU2
Image zooming-out module 21.Return step 1) until repairing in step 6) terminates.
11) Mura offset data matrix, then be sent to by the Mura offset data matrix if it exists of GPU data processing module 11
The SPI interface 22 of CPU2, Mura compensating image data that SPI interface 22 will acquire simultaneously are burned onto mould group by SPI adapter 5
Flash IC41 solidifies.
In the prior art, as shown in figure 3, repairing the SPI22 that calculated Mura offset data matrix passes through CPU2 every time
Interface is sent to Flash IC41, then picture of the display of mould group 4 by reparation.And Mura offset data matrix is burnt to
The time of Flash IC41 is longer, debugs one piece of mould group and needs repeatedly to repair, generally requires time-consuming 60s/ piece.
And in the present invention, the GPU image output interface that calculated Mura offset data matrix passes through GPU1 is repaired every time
13 are sent directly to mould group 4, picture of the display of mould group 4 by reparation, it is not necessary that Mura offset data matrix is burnt to Flash
IC41 only need to will be burnt to Flash IC41 solidification by the Mura offset data matrix assessed after the completion of reparation.Utilize this
Invention, debugs one piece of mould group and needs 30s/ piece.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can be devised by several improvement, these improvement also should be regarded as the present invention
Protection scope.
The content that this specification is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of mould group color spot prosthetic device based on PC GPU, it is characterised in that: including the GPU data being set in GPU (1)
Processing module (11), GPU image synthesis module (12) and GPU image output interface (13)；
The GPU data processing module (11) utilizes the parallel processing capability of GPU, according to the brightness value matrix of positioning image frame
The picture mapping relations of camera (3) and mould group (4) are obtained, and calculate the Mura of picture to be repaired according to the picture mapping relations
Assessed value, judges whether the gray-scale intensity of the picture to be repaired meets the requirements, and calculates the Mura compensation of the picture to be repaired
Data matrix；
The GPU image synthesis module (12) is used for the Mura offset data matrix of the picture to be repaired and picture to be repaired
Brightness value matrix synthesis, formed Mura compensate image；
The GPU image output interface (13) is used to Mura compensation image being converted to picture signal video stream to mould
Group (4).
2. the mould group color spot prosthetic device according to claim 1 based on PC GPU, it is characterised in that: further include being set to
Image zooming-out module (21) and image transmitting interface (22) in CPU (2)；
Described image extraction module (21) is used to obtain the data flow of positioning picture, picture to be repaired from camera (3), and solves respectively
Code is the brightness value matrix of positioning picture, the brightness value matrix of picture to be repaired is sent to GPU data processing module (11)；
Described image coffret (22) is used for from the GPU data processing module
(11) it obtains
Mura compensating image data and the FlashIC (41) that mould group (4) are burned by SPI adapter (5).
3. the mould group color spot prosthetic device according to claim 1 based on PC GPU, it is characterised in that: the GPU image
The interface type of output interface (13) determines by the model and specification of GPU (1), including but not limited to DP, VGA, HDMI, DVI.
4. a kind of restorative procedure of the mould group color spot prosthetic device based on PC GPU, characterized by the following steps:
1) the brightness value matrix for acquiring picture to be repaired, is converted to panel end brightness value matrix according to picture mapping relations；
2) Mura assessed value is calculated using GPU (1), if the Mura assessed value is within preset range, reparation terminates；If described
Mura assessed value goes to step 3) not within preset range；
3) the Mura offset data matrix of the picture to be repaired is calculated using GPU (1)；
4) Mura offset data matrix is synthesized using GPU (1) with panel end brightness value matrix, forms Mura and compensates image；
5) Mura compensation image is converted into picture signal video stream to mould group (4) using GPU (1)；
6) step 1)~5 are repeated) until repairing terminates.
5. the restorative procedure of the mould group color spot prosthetic device according to claim 4 based on PC GPU, it is characterised in that:
Picture mapping relations in the step 1) are obtained by the brightness value matrix of positioning picture.
6. the restorative procedure of the mould group color spot prosthetic device according to claim 5 based on PC GPU, it is characterised in that:
After reparation, Mura offset data matrix, then is burned onto the Flash IC of mould group (4) by Mura offset data matrix if it exists
(41)。
7. the restorative procedure of the mould group color spot prosthetic device according to claim 5 based on PC GPU, it is characterised in that:
Calculate in the step 3) the Mura offset data matrix of the picture to be repaired the specific steps are first subtract background data and obtain
Defective data is obtained, parameter is repaired multiplied by Demura with the defective data, obtains Mura offset data matrix.
8. the restorative procedure of the mould group color spot prosthetic device according to claim 7 based on PC GPU, it is characterised in that:
It is to repair coefficient or coefficient matrix that the Demura, which repairs parameter,.
9. the restorative procedure of the mould group color spot prosthetic device according to claim 6 based on PC GPU, it is characterised in that:
The compensating image signals generate in such a way that the Mura offset data matrix of several different grayscale is according to linear interpolation.
10. the restorative procedure of the mould group color spot prosthetic device according to claim 6 based on PC GPU, feature exist
In: the Mura offset data matrix is preset Mura offset data matrix group set.
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| CN108008553A (en) * | 2017-11-22 | 2018-05-08 | 深圳市华星光电技术有限公司 | A kind of Mura detection bearing calibrations and system |
| CN108932922B (en) * | 2018-07-03 | 2021-05-14 | 京东方科技集团股份有限公司 | Device and method for testing repair capability |
| CN109064958A (en) * | 2018-08-24 | 2018-12-21 | 上海易密值半导体技术有限公司 | color demura system based on GPU |
| CN109493767A (en) * | 2018-10-30 | 2019-03-19 | 合肥市商巨智能装备有限公司 | Mura defects compensate device and method |
| CN109272945B (en) * | 2018-11-07 | 2021-08-24 | 深圳Tcl新技术有限公司 | Backlight correction method and device for display screen and computer readable storage medium |
| CN110297339A (en) * | 2019-06-12 | 2019-10-01 | 武汉精立电子技术有限公司 | It is a kind of for eliminate field angle influence color spot restorative procedure and system |
| CN111326124B (en) * | 2020-04-03 | 2021-07-23 | Tcl华星光电技术有限公司 | Display device driving method and display device |
| US11257449B2 (en) | 2020-04-03 | 2022-02-22 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display device driving method, display device |
| CN111709949A (en) * | 2020-08-19 | 2020-09-25 | 武汉精测电子集团股份有限公司 | Outdoor display screen detection and repair method, device, equipment and storage medium |
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| JP2008102379A (en) * | 2006-10-20 | 2008-05-01 | Hitachi Ltd | Image display device and method |
| KR101917757B1 (en) * | 2012-06-04 | 2018-11-13 | 삼성전자주식회사 | Organic lighting emitting display and driving method thereof |
| CN103680449B (en) * | 2013-12-17 | 2017-02-22 | Tcl集团股份有限公司 | Method and device for removing liquid crystal displayer mura |
| CN105654891B (en) * | 2016-04-05 | 2018-06-26 | 京东方科技集团股份有限公司 | A kind of method, apparatus and display panel for obtaining mura offsets |
| CN106097954B (en) * | 2016-07-21 | 2019-08-13 | 武汉精测电子集团股份有限公司 | A kind of method and system for repairing plane display module Mura defects |
| CN106228924B (en) * | 2016-08-05 | 2019-09-13 | 武汉精测电子集团股份有限公司 | Color spot compensating image signals generating means, method and color spot failures repair system |
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