CN201673653U - Full-screen color correction device for LED display screen - Google Patents
Full-screen color correction device for LED display screen Download PDFInfo
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- CN201673653U CN201673653U CN2009202991126U CN200920299112U CN201673653U CN 201673653 U CN201673653 U CN 201673653U CN 2009202991126 U CN2009202991126 U CN 2009202991126U CN 200920299112 U CN200920299112 U CN 200920299112U CN 201673653 U CN201673653 U CN 201673653U
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Abstract
The utility model provides a full-screen color correction device for an LED display screen, belonging to the field of LED display technology, and comprising a device rack assembly, wherein the device rack assembly is internally provided with a correction computer which is connected with a camera and an optical tester by USB interfaces, and communication equipment is connected with a display and control computer; an LED control transmitter and an LED control receiver are sequentially connected to a module scanning control panel of the LED display screen by the display and control computer; the correction computer is provided with LED correction software, and the camera, the optical tester and the display and control computer are controlled by running the software so as to carry out control, shooting, testing, sampling and calculation on subareas or the full screen, and realize correction on the brightness and chrominance uniformity of single points, modules, modules and red, green and blue LEDs of the full screen, as well as the white color correction of the full screen. The system can carry out brightness and chrominance correction of all colors of the LED display screen and white color temperature adjustment at pixel stage, module stage and the full screen, and achieve the purposes of being wholly improved, and promoting the performance and high definition of the LED display screen.
Description
Technical field
The utility model belongs to LED display technique field, specially refers to a kind of LED display color correction device.
Background technology
Full-color LED display screen includes the LED pipe of three kinds of colors of red, green, blue, because there is the inconsistency of brightness, wavelength aborning in the LED pipe, the supplier is for satisfying manufacturer's requirement, must go ahead of the rest behind the stepping by brightness, colourity to red, green, blue LED fluorescent tube, again by the different class supplies of material, this not only increases the trouble degree on production process, also increased unnecessary cost of products simultaneously.Nonetheless, still there are certain error in brightness, the colourity of red, green, blue LED fluorescent tube, cause LED display that aberration flower screen phenomenon is arranged, and have had a strong impact on the display effect and the market assessment of LED display.For this reason, the technology of LED display being carried out color correction also obtains corresponding development, after for example adopting camera that red, green, blue three looks of tens of, hundreds of the modules that constitute LED display or modular unit are taken pictures respectively, with the photo input computing machine of taking, utilize software that red, green, blue three looks of LED pixel are carried out brightness, colorimetric analysis respectively, carrying out homogenising handles, corrected parameter being imported LED module or module is stored again, when showing in real time, revised, solved the inconsistency of LED display pixel intensity of all kinds.Yet this method comes with some shortcomings, after for example one by one LED module or module being proofreaied and correct, because the nonuniformity of time, environment, operation, there are the observable error of human eye in unavoidable indivedual LED module or module, need remake secondary or No. three manual synchronizings, secondly the error of camera existence itself is also influential to the precision of color correction, and this method also lacks the adjustment to the LED display white colour temperature, thereby be difficult to improve the performance of LED display comprehensively, these class methods adopt manually-operated simultaneously, automaticity is high not enough, and efficient is also lower.
Summary of the invention
The utility model technical issues that need to address, be comprehensive inadequately at existing LED display color correction, there is correction error, proofread and correct the high inadequately weak point of efficient, just need to propose a kind of new LED display color correction device in order to overcome these weak points, the purpose of this utility model provides the full frame color correction device of a kind of LED display, it is with correcting computer, camera, show control computer, communication system, LED controls transmitter, the LED controlling receiver, and optical tester and closed-loop system of the whole formation of LED display, to full frame red of LED, green, blue, comprise that white carries out brightness, the colourity calibration, sampling, analyze, handle, proofread and correct, equilibrium and white colour temperature adjustment improve so that it reaches whole, greatly promote the purpose of LED display performance and image quality.
For achieving the above object, the technical solution adopted in the utility model is:
The full frame color correction device of a kind of LED display comprises an overall A of device frame, in frame is overall correcting computer is housed, and links to each other with camera, optical tester by the USB mouth; Link to each other with apparent control computer by communication apparatus; Apparent control computer connects LED control transmitter, the LED controlling receiver module scan control plate to LED display more successively, it is characterized in that, described correcting computer is equipped with the LED correction software, control camera, optical tester and apparent control computer by operating software, LED display is carried out subregion or full frame control, shooting, test, sampling, arithmetic operation, thereby realize that brightness, uniformity of chromaticity to single-point, module, module and full frame red, green, blue LED proofreaied and correct and full frame white is proofreaied and correct.
Described apparent control computer is the playback equipment of LED display, except that large-size screen monitors playout software, large-size screen monitors general control software are installed, LED also is installed proofreaies and correct Control Software, be controlled by correcting computer when making the large-size screen monitors color correction, described apparent control computer links to each other with LED control transmitter by the DVI mouth of serial ports, video card;
Described communication apparatus is meant a pair of wireless network transceiver, and it connects correcting computer and apparent control computer by network interface respectively;
Optionally, communication apparatus allows to adopt netting twine directly to link to each other by network interface at correcting computer and apparent control computer close together or house wiring at one's leisure;
Described LED control transmitter is the transmission part of LED display control system, up connects and shows control computer, down is connected to the LED controlling receiver by optical fiber or kilomega network, shows the Control Software except that large-size screen monitors are installed, and LED also is installed proofreaies and correct related software;
Described LED controlling receiver is the receiving unit of LED display control system, is connected to the module scan control plate of LED display by the multi path network winding thread, shows the Control Software except that large-size screen monitors are installed, and LED also is installed proofreaies and correct related software;
Described scan control plate, be contained in each module of LED display, each scan control plate is responsible for the scanning demonstration work of a module casing LED, except that the module displays Control Software is installed, LED also is installed proofreaies and correct related software, it also has the non-volatile memory body, is used to store the color correction coefficient;
Described camera is to have high-resolution mm professional camera special, is controlled by correcting computer by the USB mouth, by light path LED display is found a view and takes pictures;
Described optical tester is to have the optical test equipment that red, green, blue colour brightness, determination of colority and white color temperature are measured, and can link to each other with correcting computer by the USB mouth, by light path LED display is carried out optic test.
Compared with prior art, the beneficial effects of the utility model are, utilize duplex computer, mm professional camera special, led controller, LED display and optical tester to form the corrective system of a closed loop, this system can be at Pixel-level, module level and full frame red, green, blue to LED display, comprise that white carries out brightness, chromaticity correction and white colour temperature adjustment respectively, thereby reach the whole purpose of improving, greatly promoting LED display performance and image quality.
Description of drawings
The full frame color correction device structure of a kind of LED display of Fig. 1 connects schematic block diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
With reference to Fig. 1, be the full frame color correction device structure of a kind of LED display of the utility model annexation schematic block diagram, installing overall frame is A, comprise correcting computer 1 among the figure, link to each other with camera 6, optical tester 7 by the USB mouth, link to each other with apparent control computer 2 by communication apparatus 3, and connect LED control transmitter 4, LED controlling receiver 9 module scan control plate 8 more successively to LED display 5 by showing control computer 2.Described correcting computer 1 is equipped with the LED correction software, control camera 6, optical tester 7 and apparent control computer 2, LED control transmitter 4, LED controlling receiver 9 by operating software, LED display 5 is carried out subregion or full frame control, shooting, test, sampling, arithmetic operation, thereby realize that brightness, uniformity of chromaticity to single-point, module, module and full frame red, green, blue LED proofreaied and correct and full frame white is proofreaied and correct.
Described correcting computer 1 is the main control computer of the full frame color correction of LED display, its output port comprises that network interface 11 links to each other with communication apparatus 3, by USB mouth 12 link to each other with camera 6, USB mouth 13 links to each other with optical tester 7, link to each other with apparent control computer 2 by communication apparatus 3;
Described apparent control computer 2 is playback equipments of LED display, except that large-size screen monitors playout software, large-size screen monitors general control software are installed, LED also is installed proofreaies and correct Control Software, be controlled by correcting computer 1 by communication apparatus 3 when making the large-size screen monitors color correction, show control computer 2 and link to each other with communication apparatus 3 by network interface 21; Link to each other with LED control transmitter 4 by video card DVI video output 22, send video data, link to each other with led controller 4 by USB or COM serial port 23 again, be used to send steering order and correction data;
Described communication apparatus 3 refers to a pair of wireless network transceiver, connects correcting computer 1 and apparent control computer 2 by network interface respectively, is responsible for the data communication of 2 of correcting computer 1 and apparent control computers;
Optionally, communication apparatus 3 allows to adopt netting twine directly to link to each other by network interface at correcting computer and apparent control computer close together or house wiring at one's leisure;
Described LED control transmitter 4 is transmission parts of LED display control system, up connect and show control computer 2, down link to each other with LED controlling receiver 9, show the Control Software, LED also is installed proofreaies and correct related software except that large-size screen monitors are installed by optical fiber or gigabit network interface 41;
Described LED controlling receiver 9 is receiving units of LED display control system, up link to each other with LED control transmitter 4 by optical fiber or gigabit network interface 91, down link to each other with each scan control plate 8 of LED display 5 by the multi path network winding thread, show the Control Software except that large-size screen monitors are installed, LED also is installed proofreaies and correct related software;
Described LED display 5 is full-color LED display screens, is controlled by LED controlling receiver 9;
Described scan control plate 8 is contained in each module of LED display, each scan control plate is responsible for the scanning demonstration work of a casing LED, except that the module displays Control Software is installed, LED also is installed proofreaies and correct related software, and have the non-volatile memory body, be used to store the color correction coefficient;
Described camera 6 is to have high-resolution mm professional camera special, and its automatic focus, exposure are controlled by correcting computer 1 by the USB mouth, by light path LED display 5 subregions or full frame finding a view are taken pictures;
Described optical tester 7 is to have the optical test equipment that red, green, blue colour brightness, determination of colority and white color temperature are measured, and can link to each other with correcting computer by the USB mouth, its preference such as CS-2000, by light path to LED display 5 subregions or the full frame optic test that carries out.
Enforcement of the present utility model, be based on following principle of work, to install connect working properly after, determine LED large-size screen monitors systematic parameter earlier, comprise full frame resolution, module resolution, module resolution, pel spacing and pixel RGB lamp side-play amount etc., and screen carried out subregion, 50 among Fig. 1～53 4 subregion for example, adjust camera parameter afterwards, comprise the required optical filter of LED camera sampling of all kinds, time shutter and white calibration, carry out red to one of them subregion then, green, blue, white is taken sampling, determines that the target component behind the school just can begin to have proofreaied and correct.At first carrying out subregion proofreaies and correct, comprise each subregion Pixel-level RGB brightness, chromaticity correction, white correction and module level RGB brightness, chromaticity correction, white correction, do full frame correction more at last, comprise full frame module level RGB brightness, chromaticity correction and white correction, proofread and correct subregion RGB brightness, the colourity error that produces to eliminate each subregion, last large-size screen monitors carry out the module level white balance to be handled, so that the white brightness of each subregion, colour temperature reach unanimity.All correction datas that obtain are passed to large-size screen monitors control computer and LED large-size screen monitors by wireless or cable network, and full frame correction finishes, and send by correcting computer and hold instruction, and the data that obtain are cured in the memory bank of the scan control plate of LED large-size screen monitors or module.
Though the utility model is described with reference to current embodiment, above-mentioned embodiment only is used for illustrating the utility model, is not to be used for limiting protection domain of the present utility model.It is pointed out that the utility model is not only applicable to the full frame correction of LED display, also be applicable to the color correction of LED module or led module, for example do the correction of each LED module earlier, remake a full frame correction of LED.
Claims (7)
1. full frame color correction device of LED display, it is overall to comprise a device frame, in frame is overall correcting computer is housed, and links to each other with camera, optical tester by the USB mouth, links to each other with apparent control computer by communication apparatus; Apparent control computer connects LED control transmitter, the LED controlling receiver module scan control plate to LED display more successively, it is characterized in that, described correcting computer is equipped with the LED correction software, control camera, optical tester and apparent control computer by operating software, LED display is carried out subregion or full frame control, shooting, test, sampling, arithmetic operation, thereby realize that brightness, uniformity of chromaticity to single-point, module, module and full frame red, green, blue LED proofreaied and correct and full frame white is proofreaied and correct.
2. the full frame color correction device of LED display according to claim 1 is characterized in that, described apparent control computer links to each other with LED control transmitter by the DVI mouth of serial ports, video card.
3. the full frame color correction device of LED display according to claim 1 is characterized in that described communication apparatus is meant a pair of wireless network transceiver, and it connects correcting computer and apparent control computer by network interface respectively.
4. the full frame color correction device of LED display according to claim 1, it is characterized in that, described LED control transmitter, up connect and show control computer, down be connected to the LED controlling receiver by optical fiber or kilomega network, show the Control Software except that large-size screen monitors are installed, LED also is installed proofreaies and correct related software.
5. the full frame color correction device of LED display according to claim 1, it is characterized in that, described LED controlling receiver is connected to the module scan control plate of LED display by the multichannel netting twine, shows the Control Software except that large-size screen monitors are installed, and LED also is installed proofreaies and correct related software.
6. the full frame color correction device of LED display according to claim 1 is characterized in that, described scan control plate also is equipped with LED and proofreaies and correct related software except that the module displays Control Software is installed.
7. the full frame color correction device of LED display according to claim 1 is characterized in that described scan control plate has the non-volatile memory body, is used to store the color correction coefficient.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009202991126U CN201673653U (en) | 2009-12-23 | 2009-12-23 | Full-screen color correction device for LED display screen |
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| CN2009202991126U CN201673653U (en) | 2009-12-23 | 2009-12-23 | Full-screen color correction device for LED display screen |
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| CN2009202991126U Expired - Fee Related CN201673653U (en) | 2009-12-23 | 2009-12-23 | Full-screen color correction device for LED display screen |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280097A (en) * | 2011-08-31 | 2011-12-14 | 广东威创视讯科技股份有限公司 | Display brightness and chrominance uniformity regulating method |
| CN102426828A (en) * | 2011-10-08 | 2012-04-25 | 广东威创视讯科技股份有限公司 | Screen edge color adjusting method and device |
| CN104021765A (en) * | 2014-06-18 | 2014-09-03 | 无锡市崇安区科技创业服务中心 | System and method for adjusting white balance of all-color LED screen |
| CN104077991A (en) * | 2013-03-25 | 2014-10-01 | 刘鸿达 | Display device and color temperature adjusting method thereof |
| CN104240636A (en) * | 2013-06-12 | 2014-12-24 | 兆光科技有限公司 | Chromaticity adjustment for LED video screens |
| CN104795048A (en) * | 2015-04-14 | 2015-07-22 | 广东威创视讯科技股份有限公司 | Color calibration method and system for tiled displays |
| TWI560372B (en) * | 2015-07-24 | 2016-12-01 | Qisda Corp | Display device |
| CN106898328A (en) * | 2017-05-08 | 2017-06-27 | 北京德火新媒体技术有限公司 | A kind of screen color calibrating method and device |
| CN107103867A (en) * | 2017-04-19 | 2017-08-29 | 西安诺瓦电子科技有限公司 | Display control card detection method and device, detecting system and production line |
| CN108010479A (en) * | 2017-12-04 | 2018-05-08 | 合肥联宝信息技术有限公司 | The control method and device of the display panel of a kind of electronic equipment |
| CN108735144A (en) * | 2018-05-24 | 2018-11-02 | 长春希达电子技术有限公司 | A kind of non-point-by-point acquisition correction method of LED display |
| US10192514B2 (en) | 2015-07-23 | 2019-01-29 | Qisda (Suzhou) Co., Ltd. | Display device |
| CN109473077A (en) * | 2018-12-25 | 2019-03-15 | 惠科股份有限公司 | Display panel driving method and system and display device |
| CN112396075A (en) * | 2019-08-15 | 2021-02-23 | 西安诺瓦星云科技股份有限公司 | Lamp panel classification method, device and system and computer readable storage medium |
| CN114495857A (en) * | 2022-02-08 | 2022-05-13 | 深圳市华星光电半导体显示技术有限公司 | Display brightness correction method and device, electronic equipment and storage medium |
-
2009
- 2009-12-23 CN CN2009202991126U patent/CN201673653U/en not_active Expired - Fee Related
Cited By (19)
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| CN102280097B (en) * | 2011-08-31 | 2013-02-13 | 广东威创视讯科技股份有限公司 | Display brightness and chrominance uniformity regulating method |
| CN102280097A (en) * | 2011-08-31 | 2011-12-14 | 广东威创视讯科技股份有限公司 | Display brightness and chrominance uniformity regulating method |
| CN102426828A (en) * | 2011-10-08 | 2012-04-25 | 广东威创视讯科技股份有限公司 | Screen edge color adjusting method and device |
| CN102426828B (en) * | 2011-10-08 | 2013-12-25 | 广东威创视讯科技股份有限公司 | Screen edge color adjusting method and device |
| CN104077991A (en) * | 2013-03-25 | 2014-10-01 | 刘鸿达 | Display device and color temperature adjusting method thereof |
| CN104240636A (en) * | 2013-06-12 | 2014-12-24 | 兆光科技有限公司 | Chromaticity adjustment for LED video screens |
| CN104021765A (en) * | 2014-06-18 | 2014-09-03 | 无锡市崇安区科技创业服务中心 | System and method for adjusting white balance of all-color LED screen |
| CN104795048B (en) * | 2015-04-14 | 2017-08-29 | 广东威创视讯科技股份有限公司 | Mosaic display screen color calibration method and system |
| CN104795048A (en) * | 2015-04-14 | 2015-07-22 | 广东威创视讯科技股份有限公司 | Color calibration method and system for tiled displays |
| US10192514B2 (en) | 2015-07-23 | 2019-01-29 | Qisda (Suzhou) Co., Ltd. | Display device |
| TWI560372B (en) * | 2015-07-24 | 2016-12-01 | Qisda Corp | Display device |
| CN107103867A (en) * | 2017-04-19 | 2017-08-29 | 西安诺瓦电子科技有限公司 | Display control card detection method and device, detecting system and production line |
| CN106898328A (en) * | 2017-05-08 | 2017-06-27 | 北京德火新媒体技术有限公司 | A kind of screen color calibrating method and device |
| CN106898328B (en) * | 2017-05-08 | 2019-12-31 | 北京德火新媒体技术有限公司 | A kind of screen color correction method and device |
| CN108010479A (en) * | 2017-12-04 | 2018-05-08 | 合肥联宝信息技术有限公司 | The control method and device of the display panel of a kind of electronic equipment |
| CN108735144A (en) * | 2018-05-24 | 2018-11-02 | 长春希达电子技术有限公司 | A kind of non-point-by-point acquisition correction method of LED display |
| CN109473077A (en) * | 2018-12-25 | 2019-03-15 | 惠科股份有限公司 | Display panel driving method and system and display device |
| CN112396075A (en) * | 2019-08-15 | 2021-02-23 | 西安诺瓦星云科技股份有限公司 | Lamp panel classification method, device and system and computer readable storage medium |
| CN114495857A (en) * | 2022-02-08 | 2022-05-13 | 深圳市华星光电半导体显示技术有限公司 | Display brightness correction method and device, electronic equipment and storage medium |
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