CN101089945A - A method and device for correcting light and color parameters of a flat panel display - Google Patents
A method and device for correcting light and color parameters of a flat panel display Download PDFInfo
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Abstract
一种平板显示器光色参数校正方法及装置，采用单点校正的方法对平板显示器预先进行测量获得各像素的校正参数并将其存储于校正参数存储装置中，利用DVI接收器接收视频信号源数据并对其进行解码，提取每个像素的三基色数据，完成时钟恢复与数据的同步处理，并在校正运算装置中将各像素的校正参数与解码后各像素的三基色数据进行运算和处理，以调整平板显示器每一个组成像素的光色参数，保证平板显示器复现最佳的图像。本发明不改变数字信号传输协议，与平板显示器DVI数字视频接口输入兼容。具有数字视频接口的平板显示器可以直接接收、显示来自数字视频接口的经变换后的图像信号数据，具有兼容性好、操作简便，升级方便等优点。
A method and device for correcting light and color parameters of a flat-panel display, using a single-point calibration method to measure the flat-panel display in advance to obtain correction parameters for each pixel and storing them in a correction parameter storage device, and using a DVI receiver to receive video signal source data And decode it, extract the three primary color data of each pixel, complete the synchronization processing of clock recovery and data, and perform calculation and processing on the correction parameters of each pixel and the three primary color data of each pixel after decoding in the correction operation device, To adjust the light and color parameters of each component pixel of the flat panel display to ensure that the flat panel display reproduces the best image. The invention does not change the digital signal transmission protocol, and is compatible with the DVI digital video interface input of the flat panel display. The flat panel display with digital video interface can directly receive and display the converted image signal data from the digital video interface, and has the advantages of good compatibility, easy operation, and convenient upgrade.
Description
Technical field
The present invention relates to a kind of flat-panel monitor optical color parameter correction method and device, particularly a kind of flat-panel monitor optical color parameter correction method and device based on computer standard digital video interface.
Background technology
In recent years, along with the development of flat panel display and image display technology, the oriented large tracts of land of display device, digitizing, the trend of high-resolution development, thereby more and more higher to the requirement of the indexs such as homogeneity of flat-panel monitor.The large-area flat-plate display that existing display device particularly is made up of discrete light-emitting pixel cell (group), because discrete light-emitting pixel cell (group) itself has discreteness, and light emitting pixel unit (group) enormous amount makes each light emitting pixel unit (group) optical color parameter dispersion of same flat-panel monitor bigger; Cause the inhomogeneous of flat-panel monitor brightness, colourity, make that the flat-panel monitor consistance is poor, have a strong impact on the image displaying quality of display, become the bottleneck of restriction large screen flat plate display development.The flat-panel monitor of particularly forming for the polytype flat-panel monitor by the discrete light-emitting pixel, luminescent device or display group become pixel to certainly exist physical characteristics or photochromic difference when also existing owing to making, and there is attenuation characteristic in some flat-panel monitor, increase with life cycle, the inconsistent disparity range of optical color parameter is more obvious, individual parameter of light emitting pixel such as brightness, colourity, colour temperature, color saturation etc. there are differences, and have also increased the image of flat-panel monitor demonstration and the unlikely property of original image.
As shown in Figure 1, existing digital panel display is to adopt DVI (Digital VisualInterface) standard to pass through the digital video signal of the direct receiving computer standard digital of DVI receiver video interface output as image data.Because individual parameter of flat-panel monitor light emitting pixel such as brightness, colourity, colour temperature, color saturation etc. there are differences, the digital video signal of the brightness that each light emitting pixel of flat-panel monitor shows, colourity, colour temperature, color saturation and the output of computer standard digital visual interface occurs inconsistent, makes flat-panel monitor can not reproduce original image well.
Summary of the invention
Problem to be solved by this invention provides a kind of flat-panel monitor optical color parameter correction method, adopt the method for single point correction flat-panel monitor to be measured in advance the correction parameter that obtains each pixel, and the image data that the correction parameter and the computer standard digital visual interface of each pixel are exported carries out computing and processing, each forms the optical color parameter of pixel to adjust flat-panel monitor, make the good evenness of flat-panel monitor, guarantee the best image of flat-panel monitor reproduction; For realizing above-mentioned flat-panel monitor optical color parameter correction method, the present invention also provides a kind of flat-panel monitor optical color parameter means for correcting.
For solving the problems of the technologies described above, flat-panel monitor optical color parameter correction method of the present invention adopts the following step:
Each pixel of flat-panel monitor is measured in advance, obtained the photochromic correction parameter of each pixel and it is loaded in the memory storage;
To decode from the vision signal source data of computing machine, extract red (R), green (G) of each pixel, blue (B) tristimulus image data, and finish clock recovery and data synchronization and handle;
Photochromic correction parameter to red (R), green (G) of decoded each pixel, blue (B) three primary colours data and each pixel carries out digital operation and processing, obtains each pixel red (R), green (G), blue (B) three primary colours data after the match;
Each pixel after the match red (R), green (G), blue (B) three primary colours data are reverted to the form identical with the vision signal source data, send to flat-panel monitor.
For realizing said method, flat-panel monitor optical color parameter means for correcting of the present invention comprises DVI receiver 4, image channel 5, correction computing device 6, DVI transmitter 7, correction parameter memory storage 8; One end of DVI receiver 4 is connected with computing machine 1, and the DVI vision signal source data of receiving computer 1 output is also decoded to it, extracts red (R), green (G) of each pixel, blue (B) three primary colours data, finishes the processing of clock recovery and data synchronization; The other end of DVI receiver 4 is connected with correction computing device 6 by image channel 5, and red (R) of decoded each pixel, green (G), blue (B) three primary colours data are transferred to correction computing device 6 through image channel 5; One end of correction parameter memory storage 8 is connected with correction computing device 6, correction parameter is transferred to correction computing device 6, carry out computing and processing by 6 pairs of decoded each pixels of correction computing device red (R), green (G), blue (B) three primary colours data and correction parameter data, red (R), green (G) after the output match, blue (B) three primary colours data; The other end of correction computing device 6 is connected with DVI transmitter 7, and red (R) after the match, green (G), blue (B) three primary colours data revert to the form identical with the vision signal source data by DVI transmitter 7, send to flat-panel monitor 3.
For making each display unit of flat-panel monitor in whole life cycle, obtain the consistance of optical color parameter, can periodically proofread and correct each pixel optical color parameter of flat-panel monitor.
The present invention decodes with the digital video signal of DVI receiver receiving computer standard digital video interface DVI (Digital VisualInterface) output and to it, correction parameter and decoded raw image data to each pixel carry out calculation process, picture signal after utilizing the DVI transmitter with match again reverts to the form identical with the vision signal source data, send to flat-panel monitor, reach the purpose that the flat-panel monitor optical color parameter is proofreaied and correct.This method for for the flat-panel monitor of DVI digital visual interface input, is equivalent to transparent transmission for input interface, does not change the digital data transmission agreement, and is compatible with the input of flat-panel monitor DVI digital visual interface.
Device of the present invention for adopt the DVI standard with the digital signal that video signal source and panel display apparatus couple together transmit, display system, flat-panel monitor with digital visual interface (DVI) can directly receive, show the image signal data after conversion from digital visual interface, and this device does not change original video Data Transmission mode, interface standard and flat-panel monitor; Advantages such as it is compatible good, easy and simple to handle to have, and upgrading is convenient.
Description of drawings:
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is prior art DVI video standard signal source and digital panel display connection diagram.
Fig. 2 is a flat-panel monitor optical color parameter means for correcting structural representation of the present invention.
Fig. 3 is the means for correcting structural representation of the flat-panel monitor optical color parameter of the embodiment of the invention one.
Fig. 4 is the means for correcting structural representation of the flat-panel monitor optical color parameter of the embodiment of the invention two.
Fig. 5 is the flat-panel monitor optical color parameter means for correcting structural representation that the embodiment of the invention four realizes the LED display image zoom.
Fig. 6 is the flat-panel monitor optical color parameter means for correcting structural representation that the embodiment of the invention five realizes the virtual demonstration of light-emitting diode display.
Fig. 7 is that the embodiment of the invention six realizes the flat-panel monitor optical color parameter means for correcting structural representation that light-emitting diode display γ value is set.
Embodiment
As shown in Figure 1, be prior art DVI video standard signal source and digital panel display 3 connection diagrams, the display apparatus side DVI receiver 4 of flat-panel monitor 3 directly is connected with the DVI transmitter 7 of computing machine 1 by DVI cable 2, the DVI video standard signal of receiving computer 1 output.Owing to there is not the optical color parameter means for correcting, difference can appear in the video image of image that flat-panel monitor 3 shows and computing machine 1 output, and consistance is poor.
As shown in Figure 2, be the means for correcting structural representation of flat-panel monitor 3 optical color parameters of the present invention.The means for correcting of flat-panel monitor 3 optical color parameters of the present invention comprises DVI receiver 4, image channel 5, correction computing device 6, DVI transmitter 7, correction parameter memory storage 8; One end of DVI receiver 4 is connected with computing machine 1, and the DVI vision signal source data of receiving computer 1 output is also decoded to it, extracts red (R), green (G) of each pixel, blue (B) three primary colours data, finishes the processing of clock recovery and data synchronization; The other end of DVI receiver 4 is connected with correction computing device 6 by image channel 5, and red (R) of decoded each pixel, green (G), blue (B) three primary colours data are transferred to correction computing device 6 through image channel 5; One end of correction parameter memory storage 8 is connected with correction computing device 6, correction parameter is transferred to correction computing device 6, carry out computing and processing by correction computing device 6 couples of decoded red (R), green (G), blue (B) three primary colours data and correction parameter data, red (R), green (G) after the output match, blue (B) three primary colours data; Red (R) after the match, green (G), blue (B) three primary colours data revert to the form identical with the vision signal source data by DVI transmitter 7, send to flat-panel monitor 3.
Different flat-panel monitors 3, the optical color parameter difference of its each pixel, the photochromic correction parameter table difference of normalized, the other end of correction parameter memory storage 8 has five kinds of connected mode: a, be that RS232 serial ports or parallel port are connected with computing machine 1 communication port, correction parameter is that RS232 serial ports or parallel port send to correction parameter memory storage 8 by computing machine 1 communication port; B, be connected with the USB mouth of computing machine 1, correction parameter sends to correction parameter memory storage 8 by the USB mouth of computing machine 1; C, be connected with USB flash disk, correction parameter memory storage 8 reads correction parameter from USB flash disk; D, be connected with DVI receiver 4, correction parameter can be added in the DVI standard signal, sends in the correction parameter memory storage 8 by agreement; E, be connected with eeprom memory 9, the other end of eeprom memory 9 and computing machine 1 communication port are that the USB mouth or the USB flash disk of RS232 serial ports or parallel port, computing machine 1 is connected, correction parameter is that correction parameter memory storage 8 reads correction parameter from eeprom memory 9 in the USB mouth of RS232 serial ports or parallel port, computing machine 1 or the eeprom memory 9 that USB flash disk is stored in by computing machine 1 communication port.
Adopt apparatus of the present invention to load different photochromic correction parameter tables, and do not change apparatus of the present invention, the user is equivalent to transparent unit at different flat-panel monitor 3.
Embodiment one
Present embodiment one is at LED display brightness and colorimetric parameter means for correcting.As shown in Figure 3, correction parameter memory storage 8 adopts photochromic correction parameter buffer 10.One end of DVI receiver 4 is connected with computing machine 1, and the DVI vision signal source data of receiving computer 1 output is also decoded to it, extracts red (R), green (G) of each pixel, blue (B) three primary colours data, finishes the processing of clock recovery and data synchronization; The other end of DVI receiver 4 is connected with correction computing device 6 by image channel 5, and red (R) of decoded each pixel, green (G), blue (B) three primary colours data are transferred to correction computing device 6 through image channel 5; One end of photochromic correction parameter buffer 10 has four kinds of connected mode: a, is connected with DVI receiver 4, the brightness and the chromaticity correction parameter of the corresponding physical picture element of specific LED display are added in the DVI standard signal, send by agreement, be loaded in the photochromic correction parameter buffer 10 through 4 isolated brightness of DVI receiver and chromaticity correction parameter; B, be connected with the USB mouth of computing machine 1, the brightness of the corresponding physical picture element of specific LED display and chromaticity correction parameter are loaded in the photochromic correction parameter buffer 10 by the USB mouth of computing machine 1; C, be connected with the RS232 serial ports or the parallel port of computing machine 1, the brightness and the chromaticity correction parameter of the corresponding physical picture element of specific LED display are that RS232 serial ports or parallel port are loaded in the photochromic correction parameter buffer 10 by computing machine 1 communication port; D, be connected with USB flash disk, the brightness and the chromaticity correction parameter of the corresponding physical picture element of specific LED display are loaded in the photochromic correction parameter buffer 10 by USB flash disk.The other end of photochromic correction parameter buffer 10 is connected with correction computing device 6, correction parameter is transferred to correction computing device 6, carry out computing and processing by correction computing device 6 couples of decoded red (R), green (G), blue (B) three primary colours brightness and chroma data and correction parameter data, red (R), green (G) after the output match, blue (B) three primary colours data; Red (R) after the match, green (G), blue (B) three primary colours data revert to the form identical with the vision signal source data by DVI transmitter 7, send to flat-panel monitor 3.
Among Fig. 3, DVI receiver 4 acceptance criteria DVI video input signals, decode through 4 pairs of signals of DVI receiver, finishing clock recovery and data synchronization handles, decomposite red (R), green (G) of each pixel, blue (B) tristimulus image data-signal, be transferred to correction computing device 6 by image channel 5.What photochromic correction parameter buffer 10 was deposited is the brightness and the chromaticity correction parameter of the corresponding physical picture element of specific LED display.The calibrated arithmetic unit 6 of the video luminance signal value of these brightness and chromaticity correction parameter and image channel 5 corresponding check points and chromatic value is realized brightness and chromaticity correction calculation function, can realize that promptly 3 brightness of LED flat-panel monitor and colourity proofreaies and correct simultaneously.Correction calculation produces red (R), green (G) after the match, the TMDS transmitter of blue (B) tristimulus image data in DVI transmitter 7 carries out serialization to the final video signal and handle, original three groups of 8bits rgb signals, synchronizing signal, control signal and clock signals are carried out the transition minimized coding, form the signal data of the positive and negative complementation of four channels, i.e. DVI video standard signal output.
Need to prove that the correction parameter described in Fig. 3 is direct load mode, the correction parameter data are volatile data.When display system powers up work, after all correction parameters must reload, can come into force.Behind the system cut-off, all correction parameters are lost.
Embodiment two
Fig. 4 is the means for correcting optical color parameter EEPROM load mode structural representation of flat-panel monitor 3 optical color parameters of the present invention.As shown in the figure, the connected mode of DVI receiver 4, image channel 5, correction computing device 6, DVI transmitter 7 is identical with embodiment one; Correction parameter memory storage 8 adopts eeprom memory 9 and photochromic correction parameter buffer 10, and an end of eeprom memory 9 is connected with photochromic correction parameter buffer 10, and the other end of photochromic correction parameter buffer 10 is connected with correction computing device 6; The other end of eeprom memory 9 has connected mode in five: a, be that RS232 serial ports or parallel port are connected with computing machine 1 communication port; B, be connected with the USB mouth of computing machine 1; C, be connected with USB flash disk; D, be connected with DVI receiver 4; F, be connected with outside EEPROM read write line.Correction parameter is stored in the eeprom memory 9 by five kinds of modes: a, be that RS232 serial ports or parallel port send by computing machine 1 communication port; B, apparatus of the present invention have USB mouth Slave end, and computing machine 1USB mouth is the Master end, by the USB mouth transmission correction parameter of computing machine 1; C, apparatus of the present invention have USB mouth Master end, can external USB flash disks, read correction parameter from USB flash disk; D, correction parameter can also be added in the DVI standard signal, send by agreement, isolate correction parameter through DVI receiver 4 and are stored in the eeprom memory 9; F, correction parameter write in the eeprom memory 9 in advance by outside EEPROM read write line.
All correction parameters are the EEPROM load mode among Fig. 4, and the correction parameter data are non-volatile data.When display system powered up work, all correction parameters did not need to reload.
Embodiment three
Present embodiment is for implementing one and implement two special case, only to the LED display gamma correction, and 10 correction parameters of depositing at brightness of photochromic correction parameter buffer, comprising two kinds of situations:
1, at the brightness correction parameter of display screen, with the video luminance signal value stack computing of corresponding check point, as the vision signal output of the corresponding check point of light-emitting diode display, display screen is had a few all through the gamma correction computing, arrive whole-screen brightness homogeneity result, full frame single luminance primary normalization.
2, video display has white matching problem.The red, green, blue brightness of video display will have an appropriate brightness proportional range, could show comparatively desirable white (white balance).It is warm partially white that general Asia adapts to white field, is approximately 3: 6: 1 at LED display red, green, blue brightness ratio, and the general colder white red, green, blue brightness ratio of European is approximately 2: 7: 1.Therefore, white coupling is a scope, sets with people's subjective sensation, do not have fixed numbers.In the gamma correction special case of the present invention, red, green, blue three primary colours brightness correction parameter be multiply by white red, green, blue brightness ratio coefficient that needs of coupling respectively, in gamma correction, can realize white match settings and regulatory function.
Embodiment four
Present embodiment is mainly realized the LED display be made up of the independent pixel image zoom coupling with the video source image.Fig. 5 is applied to the structural representation of LED display image zoom for the means for correcting of flat-panel monitor 3 optical color parameters of the present invention.One end of DVI receiver 4 is connected with computing machine 1, and the other end is connected with convergent-divergent arithmetic element 11 by image channel 5, and the other end of convergent-divergent arithmetic element 11 is connected with correction computing device 6, the other end of correction computing device 6 and being connected of DVI transmitter 7; Correction parameter memory storage 8 is that RS232 serial ports or parallel port are connected with DVI receiver 4 or computing machine 1 communication port, correction parameter is that RS232 serial ports or parallel port send to correction parameter memory storage 8 by computing machine 1 communication port, perhaps correction parameter is added in the DVI standard signal, send by agreement, isolate correction parameter through DVI receiver 4 and be stored in the correction parameter memory storage 8.Image zoom command buffer 12 1 ends are connected with correction parameter memory storage 8, one end is that RS232 serial ports or parallel port are connected with DVI receiver 4 or computing machine 1 communication port, and the image zoom command word loads by dual mode: a, be that RS232 serial ports or parallel port send to image zoom command buffer 12 by computing machine 1 communication port; B, image zoom command word can be added in the DVI standard signal, send by agreement, and DVI receiver 4 isolated image zoom command words are stored in the image zoom command buffer 12 in Fig. 5.The correction parameter of correction parameter memory storage 8 storages carries out transferring to correction computing device 6 behind the convergent-divergent through image zoom command buffer 12; Red (R), green (G) of each pixel that after 4 decodings of DVI receiver, decomposites, blue (B) tristimulus image data-signal, be transferred to convergent-divergent arithmetic element 11 by image channel 5 and carry out convergent-divergent, the scaled images data-signal in correction computing device 6 with convergent-divergent after the correction parameter computing that superposes, thereby carry out the correction of optical color parameter when being implemented in image zoom.The whole hardware of all images convergent-divergent computing are finished, and do not influence the real-time Transmission of image.Correction parameter memory storage 8 adopts photochromic correction parameter buffer 10, perhaps adopts eeprom memory 9 and photochromic correction parameter buffer 10.
Embodiment five
Fig. 6 is the structural representation that the means for correcting of flat-panel monitor 3 optical color parameters of the present invention is applied to the virtual demonstration of light-emitting diode display, and present embodiment is actually the special case that embodiment four realizes image zooming function.Because some LED display does not require stepless zooming, the application value of the stepless zooming of the LED display less for area, that pixel interval is bigger is little.The general method of virtual demonstration that adopts realizes that each 2 times of information of image length and width direction increase, promptly image source information is increased density on the physical picture element of LED display and show that the real image point is promptly arranged, virtual image point is arranged again, utilize the persistence of vision characteristics of human eye, can perception increase by 4 times image information.(with reference to " a kind of pixel multiplexing improves the method for display screen image analytic degree " (number of patent application is 200510016948.7)) as shown in Figure 6, one end of DVI receiver 4 is connected with computing machine 1, the other end is connected with virtual arithmetic element 13 by image channel 5, and the other end of virtual arithmetic element 13 is connected with correction computing device 6, the other end of correction computing device 6 and being connected of DVI transmitter 7; Correction parameter memory storage 8 is that RS232 serial ports or parallel port are connected with DVI receiver 4 or computing machine 1 communication port, correction parameter is that RS232 serial ports or parallel port send to correction parameter memory storage 8 by computing machine 1 communication port, perhaps correction parameter is added in the DVI standard signal, send by agreement, isolate correction parameter through DVI receiver 4 and be stored in the correction parameter memory storage 8.Image virtual display command buffer 14 1 ends are connected with correction parameter memory storage 8, one end is that RS232 serial ports or parallel port are connected with DVI receiver 4 or computing machine 1 communication port, and image virtual display command word loads by dual mode: a, be that RS232 serial ports or parallel port send to image virtual display command buffer 14 by computing machine 1 communication port; B, image virtual display command word can be added in the DVI standard signal, send by agreement, and DVI receiver 4 isolated image virtual display command words are stored in the image virtual display command buffer 14 in Fig. 5.The correction parameter of correction parameter memory storage 8 storages carries out transferring to correction computing device 6 after the virtual computing through image virtual display command buffer 14; Red (R), green (G) of each pixel that after 4 decodings of DVI receiver, decomposites, blue (B) tristimulus image data-signal, be transferred to image virtual arithmetic element 13 by image channel 5 and carry out virtual computing, viewdata signal after the virtual computing in correction computing device 6 with virtual computing after the correction parameter computing that superposes, carry out the correction of optical color parameter when image virtual shows thereby be implemented in.Correction parameter memory storage 8 adopts photochromic correction parameter buffer 10, perhaps adopts eeprom memory 9 and photochromic correction parameter buffer 10.
Embodiment six
All linear flat-panel monitors 3 exist γ to proofread and correct problem, and patent of the present invention also can realize the γ value is set and contrast adjustment.Fig. 7 is applied to light-emitting diode display γ value setting structure synoptic diagram for the means for correcting of flat-panel monitor 3 optical color parameters of the present invention.As shown in Figure 7, the end of DVI receiver 4 is connected with computing machine 1, the other end is connected with γ value transform arithmetic element 15 by image channel 5, and the other end of γ value transform arithmetic element 15 is connected with correction computing device 6, the other end of correction computing device 6 and being connected of DVI transmitter 7; Correction parameter memory storage 8 is that RS232 serial ports or parallel port are connected with DVI receiver 4 or computing machine 1 communication port, correction parameter is that RS232 serial ports or parallel port send to correction parameter memory storage 8 by computing machine 1 communication port, perhaps correction parameter is added in the DVI standard signal, send by agreement, isolate correction parameter through DVI receiver 4 and be stored in the correction parameter memory storage 8.Setting image γ value buffer 16 1 ends is connected with correction parameter memory storage 8, one end is that RS232 serial ports or parallel port are connected with DVI receiver 4 or computing machine 1 communication port, and image γ value loads by dual mode: a, be that RS232 serial ports or parallel port send to and set image γ value buffer 16 by computing machine 1 communication port; B, image γ value can be added in the DVI standard signal, send by agreement, and DVI receiver 4 isolated image γ values are stored in and set in the image γ value buffer 16 in Fig. 5.The other end of setting image γ value buffer 16 is connected with γ value transform arithmetic element 15.The correction parameter of correction parameter memory storage 8 storages carries out the computing of γ value transform through setting image γ value buffer 16 and transfers to correction computing device 6; Red (R), green (G) of each pixel that after 4 decodings of DVI receiver, decomposites, blue (B) tristimulus image data-signal, be transferred to image γ value transform arithmetic element 15 by image channel 5 and carry out the computing of γ value transform, viewdata signal after the computing of γ value transform in correction computing device 6 with the computing of γ value transform after the correction parameter computing that superposes, thereby carry out the correction of optical color parameter when being implemented in the γ value transform.Correction parameter memory storage 8 adopts photochromic correction parameter buffer 10, perhaps adopts eeprom memory 9 and photochromic correction parameter buffer 10.
Claims (8)
1, a kind of flat-panel monitor optical color parameter correction method is characterized in that adopting the following step:
Each pixel of flat-panel monitor is measured in advance, obtained the photochromic correction parameter of each pixel and it is loaded in the memory storage;
To decode from the vision signal source data of computing machine, extract the red, green, blue tristimulus image data of each pixel, and finish clock recovery and data synchronization and handle;
Photochromic correction parameter to the red, green, blue three primary colours data of decoded each pixel and each pixel carries out digital operation and processing, obtains each the pixel red, green, blue three primary colours data after the match;
Each pixel red, green, blue three primary colours data after the match are reverted to the form identical with the vision signal source data, send to flat-panel monitor.
2, a kind of flat-panel monitor optical color parameter means for correcting is characterized in that comprising DVI receiver (4), image channel (5), correction computing device (6), DVI transmitter (7), correction parameter memory storage (8); One end of DVI receiver (4) is connected with computing machine (1), and the DVI vision signal source data of receiving computer (1) output is also decoded to it, extracts the red, green, blue three primary colours data of each pixel, finishes the processing of clock recovery and data synchronization; The other end of DVI receiver (4) is connected with correction computing device (6) by image channel (5), and the red, green, blue three primary colours data of decoded each pixel are transferred to correction computing device (6) through image channel (5); One end of correction parameter memory storage (8) is connected with correction computing device (6), correction parameter is transferred to correction computing device (6), by correction computing device (6) decoded each pixel red, green, blue three primary colours data and correction parameter data are carried out computing and processing, the red, green, blue three primary colours data after the output match; The other end of correction computing device (6) is connected with DVI transmitter (7), and the red, green, blue three primary colours data after the match revert to the form identical with the vision signal source data by DVI transmitter (7), send to flat-panel monitor (3).
3, flat-panel monitor optical color parameter means for correcting according to claim 2 is characterized in that correction parameter memory storage (8) adopts photochromic correction parameter buffer (10); The USB mouth or the USB flash disk of the RS232 serial ports of one end of photochromic correction parameter buffer (10) and DVI receiver (4), computing machine (1) or parallel port, computing machine (1) are connected, and the other end of photochromic correction parameter buffer (10) is connected with correction computing device (6).
4, flat-panel monitor optical color parameter means for correcting according to claim 2, it is characterized in that correction parameter memory storage (8) adopts eeprom memory (9) and photochromic correction parameter buffer (10), one end of eeprom memory (9) is connected with photochromic correction parameter buffer (10), and the other end of photochromic correction parameter buffer (10) is connected with correction computing device (6); The other end of eeprom memory (9) and computing machine (1) communication port be RS232 serial ports or parallel port, computing machine (1) the USB mouth, be connected with USB flash disk, DVI receiver (4) or outside EEPROM read write line.
5, flat-panel monitor optical color parameter means for correcting according to claim 2 is characterized in that image channel (5) is connected with correction computing device (6) by convergent-divergent arithmetic element (11); Correction parameter memory storage (8) one ends are that RS232 serial ports or parallel port are connected with DVI receiver (4) or computing machine (1) communication port, and the other end is connected with image zoom command buffer (12); One end of image zoom command buffer (12) and DVI receiver (4) or computing machine (1) communication port are that RS232 serial ports or parallel port are connected with correction computing device (6) and are connected, and the other end is connected with correction computing device (6).
6, flat-panel monitor optical color parameter means for correcting according to claim 2 is characterized in that image channel (5) is connected with correction computing device (6) by virtual arithmetic element (13); Correction parameter memory storage (8) one ends are that RS232 serial ports or parallel port are connected with DVI receiver (4) or computing machine (1) communication port, and the other end is connected with image virtual display command buffer (14); Image virtual display command buffer (14) one ends are that RS232 serial ports or parallel port are connected with DVI receiver (4) or computing machine (1) communication port, and an end is connected with correction computing device (6).
7, flat-panel monitor optical color parameter means for correcting according to claim 2 is characterized in that image channel (5) is connected with correction computing device (6) by γ value transform arithmetic element (15); Correction parameter memory storage (8) one ends are that RS232 serial ports or parallel port are connected with DVI receiver (4) or computing machine (1) communication port, and the other end is connected with setting image γ value buffer (16); Set Tu Xiang value buffer (16) one ends and be that RS232 serial ports or parallel port are connected with DVI receiver (4) or computing machine (1) communication port, the other end is connected with correction computing device (6).
8, according to the described flat-panel monitor optical color parameter of claim 5 to 7 means for correcting, it is characterized in that correction parameter memory storage (8) adopts photochromic correction parameter buffer (10), perhaps adopts eeprom memory (9) and photochromic correction parameter buffer (10).
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| CN200710055780XA CN101089945B (en) | 2007-06-20 | 2007-06-20 | Optical color parameter correction method and device of plane display |
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| CN101827205B (en) * | 2009-03-03 | 2012-12-26 | 宏碁股份有限公司 | Video signal correction device and method and its electronic device |
| CN103268752A (en) * | 2013-05-23 | 2013-08-28 | 无锡市崇安区科技创业服务中心 | LED display screen brightness and chrominance correction system |
| CN111459005A (en) * | 2020-04-22 | 2020-07-28 | 北京航空航天大学 | A space division multiplexing color holographic reproduction system and realization method |
| CN112017587A (en) * | 2019-05-30 | 2020-12-01 | 西安诺瓦星云科技股份有限公司 | Display system, display correction method and display correction device |
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| CN103268752A (en) * | 2013-05-23 | 2013-08-28 | 无锡市崇安区科技创业服务中心 | LED display screen brightness and chrominance correction system |
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| CN112019833A (en) * | 2019-05-31 | 2020-12-01 | 家诚全球数位医材股份有限公司 | Digital image capturing device and color difference correction method and device of screen |
| CN111459005A (en) * | 2020-04-22 | 2020-07-28 | 北京航空航天大学 | A space division multiplexing color holographic reproduction system and realization method |
| CN111459005B (en) * | 2020-04-22 | 2021-08-27 | 北京航空航天大学 | Space division multiplexing color holographic reproduction system and implementation method |
| CN113936589A (en) * | 2021-10-26 | 2022-01-14 | 卡莱特云科技股份有限公司 | Virtual pixel correction method and device |
| CN113936590A (en) * | 2021-10-26 | 2022-01-14 | 卡莱特云科技股份有限公司 | Brightness correction method and device based on virtual pixel LED display screen and display system |
| CN113936590B (en) * | 2021-10-26 | 2022-09-16 | 卡莱特云科技股份有限公司 | Brightness correction method and device based on virtual pixel LED display screen and display system |
| CN113936589B (en) * | 2021-10-26 | 2022-09-30 | 卡莱特云科技股份有限公司 | Virtual pixel brightness and chrominance correction method and device |
| CN115410525A (en) * | 2022-10-31 | 2022-11-29 | 长春希达电子技术有限公司 | Sub-pixel addressing method and device, display control system and display screen |
| CN115410525B (en) * | 2022-10-31 | 2023-02-10 | 长春希达电子技术有限公司 | Sub-pixel addressing method and device, display control system and display screen |
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Effective date of registration: 20200924 Address after: No.488 Chaoyue street, high tech Development Zone, Changchun City, Jilin Province Patentee after: CHANGCHUN CEDAR ELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 130031, 16 southeast Lake Road, Jilin, Changchun Patentee before: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences |