CN102768816A - Automatic LED (light-emitting diode) display screen correction method - Google Patents
Automatic LED (light-emitting diode) display screen correction method Download PDFInfo
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Abstract
The invention provides an automatic LED (light-emitting diode) display screen correction method. The automatic correction method comprises the following steps: (1) network connection is established; (2) an A end sends a display instruction to a B end, the B end controls the full-screen or the specific sub-area of the LED display screen to display the image; (3) the A end controls image acquisition equipment to aim at a to-be-corrected area of the LED display screen, acquires the image data and uploads the image data to the A end for analysis and process to generate correction coefficients, a controller of the B end sends the correction coefficients to a receiving card of the LED display screen, so that the LED display screen displays the corrected full-screen or specific-area image; and (5) the image acquisition equipment acquires the image in the to-be-corrected area again, the A end analyzes point-to-point brightness, judges whether the correction effect is satisfied. By using the correction method, the correction accuracy is increased, the labor intensity is saved, and the correction time is shortened effectively.
Description
Technical field
The present invention relates to LED display pointwise correction field, be specifically related to a kind of LED display bearing calibration.
Background technology
LED display pointwise correction function to LED display later maintenance play important effect, can significantly improve the light tone degree homogeneity of display screen.LED display is in correcting process, and is more because of relating to link, needs the mutual and compounding practice of great deal of information, and whole flow process can need at least 2 or more work personnel to accomplish correction work.
In general, correction can be divided into 3 steps:
Use image capture device to measure the LED display appointed area.In this link, a slip-stick artist need operate in the pulpit, connects controller through the computer terminal Control Software, lets LED display display specify image or subregion.Another slip-stick artist then need take pictures by the control image capture device before the computer of proofreading and correct end, and the image capture device measurement data can forward on the computing machine through usb data line or other transmission mediums, for later stage correction software analysis of image data is prepared;
Analysis of image data, calculation correction coefficient.Correction software carries out the analysis of LED YC through the view data that is written into; After the analysis, calculate the correction coefficient of every LEDs according to the difference between LED light tone degree and the standard value.
Coefficient is uploaded, and checks calibration result.In this link; Slip-stick artist calculates LED pointwise correction coefficient proofreading and correct end, is submitted to the slip-stick artist of pulpit end through USB flash disk or other storage mediums, and this slip-stick artist is uploaded to display screen through Control Software with coefficient again; And the control large-size screen monitors show the corresponding back picture of proofreading and correct; At this moment the slip-stick artist who proofreaies and correct end can check calibration result, if wrong, it is good until calibration result to repeat above 1-3 step.
This shows that on-the-spot the needs at least carried out the exchange of data, the interchange of information between two slip-stick artists, at a distance of often surpassing rice up to a hundred, also possibly need the 3rd slip-stick artist to transmit the data of copy between the two.Accurately obtaining and transmit, understand and judging of information just seems particularly important.The tradition correcting process is very complicated, needs a large amount of operations between each link, and one of them procedure error, will cause correction work not accomplish.Therefore, traditional bearing calibration operation link is too much, fault rate is big, and needs to carry out long information interchange between the different personnel, may misunderstand and judge by accident, needs a large amount of repeating to link up, and causes waste of manpower resource, to proofread and correct efficient lower.
Summary of the invention
The invention provides a kind of LED display automated correction method, with the accuracy of improve proofreading and correct, save manpower, reduction correction time effectively.
For realizing above goal of the invention, the present invention provides following technical scheme:
A kind of LED display automated correction method comprises following execution link:
(1) building network connects
The computer terminal corrective system is the A end, and computer terminal LED display control system is the B end, makes up in order to realize that instruction and data mutual network in AB two ends connects; And being provided with image capture device, image capture device is by the to be corrected regional images acquired of A end control in order to the aligning LED display;
(2) the A end is held to B through said network connection transmission idsplay order, and according to this idsplay order, the B end is controlled the full frame or specified partition display image of LED display;
(3) A end control image capture device is aimed at the zone to be corrected of LED display, and acquisition of image data also is uploaded to the A end, at the A end data of uploading is carried out analyzing and processing, generates correction coefficient;
(4) correction coefficient that the A end is generated is transferred to the B end through said network connection; After the B termination is received correction coefficient, send the receiving card of correction coefficient to LED display, make LED display demonstrate the full frame or appointed area image after the correction by the controller of B end;
(5) image capture device is once more to this regional images acquired to be corrected, and view data also is uploaded to the A end, at the A end light tone degree that LED display carries out pointwise is analyzed, and judges whether calibration result is satisfied with;
If not, then to this regional repeated execution of steps to be corrected (3) to (5), whether be satisfied with until calibration result;
If, then continue to carry out according to step (2) to (5), carry out the correction of next specified partition;
(6) accomplish automated correction work.
Based on above-mentioned basic technical scheme, can also have following optimization to limit scheme:
At least a corresponding in each LED lamp brightness, the colourity of above-mentioned correction coefficient.
Above-mentioned network connects can adopt wireless network, and total system is not limited by occasion like this.Certainly, also can adopt cable network.
Develop the control module that image capture device is arranged at the A end, to realize the automatic control of image capture device; The exploitation of B end has LED large-size screen monitors display control module, to realize regulating automatically to the demonstration control of LED large screen display zone, picture material, brightness, color and according to correction coefficient the function of LED brilliance control.
The present invention has the following advantages:
Adopt bearing calibration of the present invention; A slip-stick artist just can accomplish the corrective maintenance work of entire display screen; Replace traditional bearing calibration to need one man operation image capture device and corrective system; The complex process of one man operation control system in addition, controller and LED display has improved the accuracy of proofreading and correct, and has saved manpower effectively, has reduced correction time; Simultaneously, reduced the information interchange process between the different personnel, misunderstanding and the erroneous judgement of having avoided field data between personnel, to cause in the transmittance process have reduced the work of repetition.
The present invention has reduced operation link, sets up a central hub, each link is contacted work automatically.
The present invention can not limited by occasion through wireless mode transmission (network connection).
Description of drawings
Fig. 1 is a system architecture diagram of the present invention;
Fig. 2 is an automated correction schematic flow sheet of the present invention.
Embodiment
As shown in Figure 1; The system architecture of LED of the present invention mainly is made up of computer terminal LED display corrective system (A end) and the computer terminal LED display control system (B end) of setting up network connection (is example with wireless LAN); Be provided with image capture device (preferably slr camera) at the LED display scene; Camera lens points to LED display, and it is full frame that camera lens covers LED, and can aim at a certain subregion of LED display as required.Image capture device can be gathered the image information of LED display in high quality; Be sent to corrective system through the usb data line; The correction coefficient that correction coefficient computing module in the corrective system will calculate gained connects the control system that sends to LED display through network; Thereby regulate the configuration parameter of LED display, accomplish correction LED display.
As shown in Figure 2, LED display automated correction method specifically comprises following execution link:
(1) building network connects
The computer terminal corrective system is the A end, and computer terminal LED display control system is the B end, makes up in order to realize that instruction and data mutual network in AB two ends connects; And being provided with image capture device, image capture device is by the to be corrected regional images acquired of A end control in order to the aligning LED display;
Develop the control module that image capture device is arranged at the A end, to realize the automatic control of image capture device; The exploitation of B end has LED large-size screen monitors display control module, to realize regulating automatically to the demonstration control of LED large screen display zone, picture material, brightness, color and according to correction coefficient the function of LED brilliance control.
(2) the A end is held to B through said network connection transmission idsplay order, and according to this idsplay order, the B end is controlled the full frame or specified partition display image of LED display.
(3) A end control image capture device is aimed at the zone to be corrected of LED display, and acquisition of image data also is uploaded to the A end, at the A end data of uploading is carried out analyzing and processing, generates correction coefficient; Correction coefficient perhaps comprises brightness correction coefficients and chromaticity correction coefficient corresponding to each LED lamp brightness or colourity.
(4) correction coefficient that the A end is generated is transferred to the B end through said network connection; After the B termination is received correction coefficient, send the receiving card of correction coefficient to LED display, make LED display demonstrate the full frame or appointed area image after the correction by the controller of B end.
(5) image capture device is once more to this regional images acquired to be corrected; View data also is uploaded to the A end; At A end the light tone degree that LED display carries out pointwise is analyzed, judged whether calibration result is satisfied with (if light tone degree high conformity then explain that calibration result is good);
If not, then to this regional repeated execution of steps to be corrected (3) to (5), whether be satisfied with until calibration result;
If, then continue to carry out according to step (2) to (5), carry out the correction of next specified partition.
(6) accomplish automated correction work.
Concrete control method that above specific embodiment and accompanying drawing thereof provide and operation example be only as a kind of preferred embodiment of the present invention, and should not be regarded as the restriction to protection domain of the present invention.Based on controlling schemes of the present invention, those skilled in the art obviously can do some adjustment through conventional software setting according to demand for control on concrete control flow and mode of operation, reach technique effect of the present invention.
Claims (4)
1.LED display screen automated correction method comprises following execution link:
(1) building network connects
The computer terminal corrective system is the A end, and computer terminal LED display control system is the B end, makes up in order to realize the mutual network join domain of AB two ends instruction and data; And image capture device is set, image capture device is by the to be corrected regional images acquired of A end control in order to the aligning LED display;
(2) the A end is held to B through described network connection transmission idsplay order, and according to this idsplay order, the B end is controlled the full frame or specified partition display image of LED display;
(3) A end control image capture device is aimed at the zone to be corrected of LED display, and acquisition of image data also is uploaded to the A end, at the A end data of uploading is carried out analyzing and processing, generates correction coefficient;
(4) correction coefficient that the A end is generated is transferred to the B end through described network connection; After the B termination is received correction coefficient, send the receiving card of correction coefficient to LED display, make LED display demonstrate the full frame or appointed area image after the correction by the controller of B end;
(5) image capture device is once more to this regional images acquired to be corrected, and view data also is uploaded to the A end, at the A end light tone degree that LED display carries out pointwise is analyzed, and judges whether calibration result is satisfied with;
If not, then to this regional repeated execution of steps to be corrected (3) to (5), whether be satisfied with until calibration result;
If, then continue to carry out according to step (2) to (5), carry out the correction of next specified partition;
(6) accomplish automated correction work.
2. LED display automated correction method according to claim 1 is characterized in that: at least a corresponding in each LED lamp brightness, the colourity of said correction coefficient.
3. LED display automated correction method according to claim 1 is characterized in that: said network connects the employing wireless network.
4. according to the arbitrary described LED display automated correction method of claim 1-3, it is characterized in that: develop the control module that image capture device is arranged at the A end, to realize the automatic control of image capture device; The exploitation of B end has LED large-size screen monitors display control module, to realize regulating automatically to the demonstration control of LED large screen display zone, picture material, brightness, color and according to correction coefficient the function of LED brilliance control.
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| CN103413527A (en) * | 2013-08-19 | 2013-11-27 | 西安诺瓦电子科技有限公司 | Image acquisition method and display method for LED display screen correction |
| CN103778887A (en) * | 2013-03-21 | 2014-05-07 | 西安电子科技大学 | Method and device for correcting brightness of LED display device |
| CN104485068A (en) * | 2014-12-02 | 2015-04-01 | 西安诺瓦电子科技有限公司 | Luminance-chrominance correction method and system of LED (Light Emitting Diode) display screen |
| CN104915922A (en) * | 2015-06-25 | 2015-09-16 | 西安诺瓦电子科技有限公司 | Splicing bright-dark line correction method |
| CN105047136A (en) * | 2015-08-25 | 2015-11-11 | 西安诺瓦电子科技有限公司 | LED display screen uniformity correction method |
| CN106328030A (en) * | 2015-07-06 | 2017-01-11 | 力领科技股份有限公司 | Correction method and display device |
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| CN107271145A (en) * | 2017-05-19 | 2017-10-20 | 西安诺瓦电子科技有限公司 | The detection method and system of display unit |
| CN110728947A (en) * | 2019-09-21 | 2020-01-24 | 深圳市奥拓电子股份有限公司 | LED display screen correction method, system and machine-readable storage medium |
| CN110930932A (en) * | 2018-09-03 | 2020-03-27 | 西安诺瓦星云科技股份有限公司 | Display screen correction method and system |
| CN111640391A (en) * | 2019-03-01 | 2020-09-08 | 杭州海康威视数字技术股份有限公司 | Display screen display adjusting method and system |
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| CN103778887A (en) * | 2013-03-21 | 2014-05-07 | 西安电子科技大学 | Method and device for correcting brightness of LED display device |
| CN103413527A (en) * | 2013-08-19 | 2013-11-27 | 西安诺瓦电子科技有限公司 | Image acquisition method and display method for LED display screen correction |
| CN104485068A (en) * | 2014-12-02 | 2015-04-01 | 西安诺瓦电子科技有限公司 | Luminance-chrominance correction method and system of LED (Light Emitting Diode) display screen |
| CN104915922B (en) * | 2015-06-25 | 2018-01-12 | 西安诺瓦电子科技有限公司 | Splice bright concealed wire modification method |
| CN104915922A (en) * | 2015-06-25 | 2015-09-16 | 西安诺瓦电子科技有限公司 | Splicing bright-dark line correction method |
| CN106328030B (en) * | 2015-07-06 | 2020-10-30 | 力领科技股份有限公司 | Correction method and display device |
| CN106328030A (en) * | 2015-07-06 | 2017-01-11 | 力领科技股份有限公司 | Correction method and display device |
| CN105047136B (en) * | 2015-08-25 | 2017-10-13 | 西安诺瓦电子科技有限公司 | LED display uniformity correcting method |
| CN105047136A (en) * | 2015-08-25 | 2015-11-11 | 西安诺瓦电子科技有限公司 | LED display screen uniformity correction method |
| CN106652898A (en) * | 2017-02-14 | 2017-05-10 | 西安诺瓦电子科技有限公司 | LED display point-to-point correction method |
| CN107271145A (en) * | 2017-05-19 | 2017-10-20 | 西安诺瓦电子科技有限公司 | The detection method and system of display unit |
| CN107271145B (en) * | 2017-05-19 | 2020-09-18 | 西安诺瓦星云科技股份有限公司 | Detection method and system of display unit |
| CN111727471B (en) * | 2018-02-23 | 2022-06-03 | 索尼半导体解决方案公司 | Display device, driving method of display device, and electronic apparatus |
| CN111727471A (en) * | 2018-02-23 | 2020-09-29 | 索尼半导体解决方案公司 | Display device, driving method of display device, and electronic apparatus |
| CN110930932A (en) * | 2018-09-03 | 2020-03-27 | 西安诺瓦星云科技股份有限公司 | Display screen correction method and system |
| CN111640391A (en) * | 2019-03-01 | 2020-09-08 | 杭州海康威视数字技术股份有限公司 | Display screen display adjusting method and system |
| CN110728947A (en) * | 2019-09-21 | 2020-01-24 | 深圳市奥拓电子股份有限公司 | LED display screen correction method, system and machine-readable storage medium |
| CN110728947B (en) * | 2019-09-21 | 2021-10-26 | 深圳市奥拓电子股份有限公司 | LED display screen correction method, system and machine-readable storage medium |
| CN113380181A (en) * | 2020-02-25 | 2021-09-10 | 西安诺瓦星云科技股份有限公司 | Display screen correction system |
| CN113380181B (en) * | 2020-02-25 | 2023-12-05 | 西安诺瓦星云科技股份有限公司 | Display screen correction system |
| CN113470563A (en) * | 2020-03-13 | 2021-10-01 | 西安诺瓦星云科技股份有限公司 | Display screen correction system and method |
| CN112489593A (en) * | 2020-12-29 | 2021-03-12 | 卡莱特（深圳）云科技有限公司 | Seamless splicing correction method and device for LED display screen |
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Address after: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 Qinfengge D District 401, Xi'an Software Park, 68 Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee before: Xi'an NovaStar Tech Co.,Ltd. |