CN101447173B - System for adjusting point-to-point brightness in a plant and method - Google Patents
System for adjusting point-to-point brightness in a plant and method Download PDFInfo
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- CN101447173B CN101447173B CN2008102402973A CN200810240297A CN101447173B CN 101447173 B CN101447173 B CN 101447173B CN 2008102402973 A CN2008102402973 A CN 2008102402973A CN 200810240297 A CN200810240297 A CN 200810240297A CN 101447173 B CN101447173 B CN 101447173B
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Abstract
The invention discloses a system for adjusting point-by-point brightness in a plant. The system comprises a displaying box body, a storage device, a data handling device, an image acquisition device, a brightness acquisition device and a transmission device. The invention further discloses a method for adjusting the point-to-point brightness in the plant, which comprises the following steps: A1, starting the transmission device, placing the displaying box body to be adjusted, and stopping the transmission device; A2, lighting the displaying box body; A3, acquiring the image data and the brightness data of the displaying box body; A4, handling the image data and the brightness data of the displaying box body, so as to form an adjusting document; and A5, storing the adjusting document.
Description
Technical field
The present invention relates to image shows and the alignment technique field to relate in particular to a kind of LED display plant pointwise brightness regulating system, and to use this system to carry out the method that brightness point by point is adjusted.
Background technology
The LED screen is by hundreds of thousands and even semiconductor light-emitting-diode up to a million, that is: LED lamp point and driving chip form cell board, and cell board combines the demonstration casing, shows that at the scene casing combines display screen.All factors such as block according to inconsistent, the dust of lamp point of the optical characteristics difference of lamp point, component ageing, driving error, the angle of lamp point own, the shade of guard lamp point and all can cause the inhomogeneous of screen lamp point brightness.Solve at present the main path of this non-uniform phenomenon: the one, improve the consistance of LED lamp optical characteristic, the 2nd, improve the homogeneity of display screen by the mode of proofreading and correct.The coherence method that improves LED lamp optical characteristic is to change screen, and this not only needs a large amount of manpowers, and the time also has substantial contribution.And the correcting mode of screen intensity is to utilize the luminance meter that each LED lamp point is measured, obtain the brightness value of each LED lamp point, then by calculating, the value of being adjusted, by control circuits such as electric currents, LED lamp point is adjusted again, reached the homogeneous value of appointment.Like this need to each the point carry out one by one value, operate loaded down with trivial details, system complex, overlong time, manually-operated is too much, precision is low, inefficiency.
Therefore, there is defective in prior art, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of plant pointwise brightness regulating system and factory's brightness point by point method of adjustment for the deficiencies in the prior art.
Technical scheme of the present invention is as follows:
A kind of plant pointwise brightness regulating system comprises: show casing, memory device, data processing equipment, image capture device, brightness collecting device and transfer equipment; Described data processing equipment, described memory device and described demonstration casing are linked in sequence, described image capture device is connected with described data processing equipment respectively with described brightness collecting device, described transfer equipment is used for transmitting described demonstration casing, the described data processing equipment described image capture device of control and described brightness collecting device are to the shown content of described demonstration casing, carry out image acquisition and brightness collection, and the data that obtain are processed, generate and adjust file, described memory device is used for storing described adjustment file.
Described system, wherein, described memory device arranges the Serial Peripheral Interface flash memory.
Described system, wherein, described data processing equipment comprises receiver module, processing module and sending module; Described receiver module is used for receiving described data, and described processing module obtains described adjustment file for the treatment of described data, and described sending module is used for sending described adjustment file to described memory module.
Described system, wherein, described memory module is arranged in described demonstration casing.
A kind of brightness point by point method of adjustment that is applied to the described system of claim 1 comprises the following steps:
A1, the position of demonstration casing to be adjusted is set, makes its display surface be right against described image capture device and described brightness collecting device;
A2, light described demonstration casing;
A3, the view data that gathers described demonstration casing and the brightness data of described demonstration casing;
A4, the described view data of processing and described brightness data generate and adjust file;
A5, the described adjustment file of storage.
Described method is put the order of steps A 1 and steps A 2 mutually.
Described method, wherein, in steps A 1, described show case body position to be adjusted being set, is to carry out following setting: the line of described image capture device and described demonstration casing both sides, with the vertical line of described image capture device to described demonstration casing, both angles are set to be no more than 3 degree.
Described method, wherein, in steps A 2, the described method that shows casing of lighting is the colored pixels of the same race of lighting simultaneously all pixels of described demonstration casing or lighting respectively described demonstration casing.
Described method, wherein, steps A 4 specifically comprises the following steps:
A41, reception view data;
A42, analyze described view data, obtain the brightness value of each pixel in described view data;
A43, by the brightness value of described each pixel, calculate the correction coefficient that obtains each pixel;
The brightness data of A44, the described correction coefficient of use and described demonstration casing generates adjusts file.
adopt such scheme, the present invention passes through showing casing acquisition of image data and brightness data, pass through analysis image, obtain the brightness value of each pixel in image, and then obtain the adjustment coefficient of each pixel, use the overall brightness value of this adjustment coefficient and demonstration casing, generate and show casing brightness adjustment file, this adjustment file is stored in shows in the supporting memory device of casing, Assembling shows casing, become the display screen of various sizes, just use the relevant data in this adjustment file during display screen work, control electric current to each pixel is adjusted, make display screen look the brightness homogeneous, avoided artificial pointwise in the past to obtain pixel intensity, the loaded down with trivial details work of adjusting afterwards.
Description of drawings
Fig. 1-1st, the structural representation of one embodiment of the present invention;
Fig. 1-2 is the A-A view of Fig. 1-1;
Fig. 2 is the structural representation of one embodiment of the present invention;
Fig. 3 is the process flow diagram of the inventive method.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Fig. 1-1 and Fig. 1-2, the invention provides a kind of display screen point by point brightness adjustment system, comprising: show casing 103, memory device 102, data processing equipment 101, image capture device 104, brightness collecting device 105 and transfer equipment 106; In the present embodiment, image capture device 104 adopts camera, and the brightness collecting device adopts luminometer; Data processing equipment 101, memory device 102 and be connected that casing 103 connects in turn show that casing is connected with memory device, like this, after the demonstration casing dispatches from the factory, could use the adjustment file in memory device during work; That is to say that each casing needs a supporting memory device; Image capture device 104 is connected with data processing equipment 101 with brightness collecting device 105, and brightness collecting device 105 is placed in the dead astern of image capture device 104, and both positions also can exchange certainly, and the present invention does not do strict restriction to both positions; Transfer equipment 106 is used for transmitting described demonstration casing 103 to assigned position, image capture device 104 and brightness collecting device 105 are under the control of data processing equipment 101, gather the view data and the brightness data that show casing 103, the data that image capture device 104 and brightness collecting device 105 collect pass back to data processing equipment 101, processed by data processing equipment 101, generate the brightness adjustment file, the adjustment file of generation is stored in the middle of memory device 102.
for instance, use Nikon D40 digital single-lens reflex camera as image capture device, use Ming Kesi LTL-200 luminometer as the brightness collecting device, data processing equipment is mainly for the treatment of data, can select common computer as data processing equipment, certainly data processing function also can be realized on other platforms, such as single-chip microcomputer, FPGA etc., data processing equipment preferably arranges receiver module, processing module, sending module three functions module, receiver module is used for receiving view data and the brightness data of camera and luminometer passback, sending to processing module to carry out data above-mentioned data processes, data processing module sends to memory device with the adjustment file that processing obtains by sending module, memory device preferably adopts high speed SPI (Serial Peripheral interface, Serial Peripheral Interface)-FLASH (flash memory) to realize, i.e. the Serial Peripheral Interface flash memory, showing that casing can be the LED casing, can be also the OLED casing, transfer equipment is mainly used to carry and shows casing to ad-hoc location, therefore can select industrial applicable transmission to show the transfer equipment of casing.
The another one example can be arranged on memory device and shows and to show the integrated memory device of casing in casing, and after the brightness point by point adjustment finished, memory device was with showing the casing user of dispatching from the factory.
Embodiment 2
As shown in Figure 2, be the schematic diagram of the present embodiment part, the difference of the present embodiment and embodiment 1 is, sets up a darkroom 107 in system, darker in this darkroom 107, for demonstration casing 103, image capture device 104 and the brightness collecting device 105 of containment.The view data of obtaining under darker environment and brightness data are not subjected to the impact of environmental factor, and the adjustment data that obtain are also more accurate, adjust better effects if.
Embodiment 3
The present embodiment provides a kind of brightness point by point method of adjustment that is applied to said system, and as shown in Figure 3, the process flow diagram for the method comprises the following steps:
A1, unlatching transfer equipment, the demonstration casing set with to be adjusted stops transfer equipment;
A2, light described demonstration casing;
A3, the view data that gathers described demonstration casing and the brightness data of described demonstration casing;
A4, the described view data of processing and described brightness data generate and adjust file;
A5, the described adjustment file of storage.
specifically, at first start transfer equipment 106, demonstration casing 103 to be adjusted is transported to assigned position, this position can satisfy image capture device 104 and brightness collecting device 105 normally carries out the needs that view data and brightness data gather, as optimal way, the display surface that shows casing 103 can be placed on the place ahead that is right against image capture device 104 and brightness collecting device 105, and the line of image capture device 104 and described demonstration casing both sides and described image capture device arrive the angle of the vertical line of described demonstration casing, be no more than 3 degree, after showing casing 103 set, stop transfer equipment 106, light demonstration casing 103 to be adjusted, control image capture device 104 and brightness collecting device 105 and treat and adjust casing acquisition of image data and brightness data, in order to improve accuracy, can multi collect view data and brightness data, average, for example gather respectively 8 times, 10 times, 20 times view data and brightness data, concrete number of times the present invention does not do strict restriction, in data processing equipment 101, the view data and the brightness data that transmit are processed afterwards, be adjusted file, concrete data processing method, can have a variety of, because for the present invention, the brightness value that obtains showing each pixel in casing 103 is most important, the brightness value that how obtains each pixel by the view data that shows casing belongs to known technology, for instance, those skilled in the art can obtain the gray-scale value of each pixel, comprise R, G, three numerical value of B, above-mentioned three numerical value are got and, can obtain the brightness value of this pixel, can process brightness value obtained above by data processing equipment afterwards and obtain adjusting coefficient, such as being got inverse, this brightness value multiply by again 256, adjustment coefficient and this brightness value that shows casing 103 by each pixel generate the adjustment file, send to and the memory device, stores that shows that casing is connected, complete the brightness point by point adjustment work of this demonstration casing, to show that casing dispatches from the factory together with memory device, carry out the next brightness point by point adjustment work that shows casing, step is the same.Adopt said method to avoid artificial pointwise in the past to obtain the heavy work of brightness value, and improved the adjustment precision, adjust precision can reach ± 5%.
Embodiment 4
On the basis of embodiment 3, the difference of the present embodiment and embodiment 3 is, steps A 1 and steps A 2 transpositions, i.e. first execution in step A2, execution in step A1 more afterwards, like this, just carried out lighting preheating before demonstration casing 103 to be measured enters ad-hoc location, its brightness data is more near actual working state, state when making the data that collect more can reflect real work, adjusting precision can further improve, after showing the casing preheating, adjust precision can reach ± 3%.
Embodiment 5
On the basis of above-described embodiment, the present embodiment has been done improvement to lighting the method that shows casing 103, can light simultaneously all lamp points that show in casing, also can light simultaneously respectively the color lamp point of the same race that shows in casing, two kinds of lighting methods respectively have advantage, and the former saves time, and raises the efficiency, the latter distinguishes the different colours image data, adjusts precision higher.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improve and conversion all should belong to the protection domain of claims of the present invention.
Claims (5)
1. a plant pointwise brightness regulating system, is characterized in that, comprising: show casing, memory device, data processing equipment, image capture device, brightness collecting device and transfer equipment;
Described data processing equipment, described memory device and described demonstration casing are linked in sequence, described image capture device is connected with described data processing equipment respectively with described brightness collecting device, described transfer equipment is used for transmitting described demonstration casing, the described data processing equipment described image capture device of control and described brightness collecting device are to the shown content of all lamp points in described demonstration casing, carry out image acquisition and brightness collection, and the data that obtain are processed, generate and adjust file, described memory device is used for storing described adjustment file;
The display surface that shows casing is placed on the place ahead that is right against image capture device and brightness collecting device, and the line of image capture device and described demonstration casing both sides and described image capture device arrive the angle of the vertical line of described demonstration casing, be no more than 3 and spend;
Described data processing equipment comprises receiver module, processing module and sending module; Described receiver module is used for receiving described data, and described processing module obtains described adjustment file for the treatment of described data, and described sending module is used for sending described adjustment file to described memory module;
Described memory module is arranged in described demonstration casing.
2. system according to claim 1, is characterized in that, described memory device arranges the Serial Peripheral Interface flash memory.
3. a brightness point by point method of adjustment that is applied to the described system of claim 1, is characterized in that, comprises the following steps:
A1, the position of demonstration casing to be adjusted is set, makes its display surface be right against described image capture device and described brightness collecting device;
A2, light all lamp points in described demonstration casing simultaneously;
A3, the view data that gathers described demonstration casing and the brightness data of described demonstration casing;
A4, the described view data of processing and described brightness data generate and adjust file;
A5, at the described adjustment file of described demonstration casing storage;
In described steps A 1, described show case body position to be adjusted being set, is to carry out following setting: the line of described image capture device and described demonstration casing both sides, with the vertical line of described image capture device to described demonstration casing, both angles are set to be no more than 3 degree;
Steps A 4 specifically comprises the following steps:
A41, reception view data;
A42, analyze described view data, obtain the brightness value of each pixel in described view data;
A43, by the brightness value of described each pixel, calculate the correction coefficient that obtains each pixel;
The brightness data of A44, the described correction coefficient of use and described demonstration casing generates adjusts file.
4. method according to claim 3, is characterized in that, puts mutually the order of steps A 1 and steps A 2.
5. according to claim 3 or 4 described methods, is characterized in that, in steps A 2, described all lamp points of lighting simultaneously in described demonstration casing are all pixels of lighting simultaneously described demonstration casing or the colored pixels of the same race of lighting respectively described demonstration casing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102402973A CN101447173B (en) | 2008-12-22 | 2008-12-22 | System for adjusting point-to-point brightness in a plant and method |
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| CN2008102402973A CN101447173B (en) | 2008-12-22 | 2008-12-22 | System for adjusting point-to-point brightness in a plant and method |
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| CN101447173A CN101447173A (en) | 2009-06-03 |
| CN101447173B true CN101447173B (en) | 2013-11-06 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650914B (en) * | 2009-06-17 | 2016-01-20 | 北京巨数数字技术开发有限公司 | A kind of point-to-point correction system |
| TWI525604B (en) * | 2014-05-30 | 2016-03-11 | 緯創資通股份有限公司 | Apparatus and method for image analysis and image display |
| CN104575373B (en) * | 2014-06-24 | 2017-06-06 | 西安诺瓦电子科技有限公司 | LED display module bright chroma corrects production line |
| CN104464633B (en) * | 2014-12-25 | 2017-05-31 | 西安诺瓦电子科技有限公司 | The bearing calibration of LED display unit and means for correcting |
| CN104637425A (en) * | 2015-02-06 | 2015-05-20 | 西安诺瓦电子科技有限公司 | Assembly-line LED (light emitting diode) display unit uniformity detection method, system and device |
| CN105551431B (en) * | 2016-02-03 | 2019-05-17 | 西安诺瓦电子科技有限公司 | LED display module uniformity correcting method |
| CN105957468B (en) * | 2016-05-03 | 2019-11-29 | 苏州佳世达光电有限公司 | A kind of color correcting method and the display device using it |
| CN108538239A (en) * | 2018-04-02 | 2018-09-14 | 厦门强力巨彩光电科技有限公司 | A kind of LED display bearing calibration and system based on high in the clouds control |
| 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 |
| CN109272968A (en) * | 2018-11-21 | 2019-01-25 | 维沃移动通信有限公司 | A kind of screen nonuniformity calibration method and terminal device |
| CN113284456B (en) * | 2021-07-21 | 2021-12-10 | 卡莱特云科技股份有限公司 | Method and device for determining correction coefficient of display screen lamp point and computer equipment |
| WO2023108550A1 (en) * | 2021-12-16 | 2023-06-22 | Jade Bird Display (Shanghai) Company | System for detecting pixel defect |
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Patent Citations (4)
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| EP1594117A2 (en) * | 1999-07-08 | 2005-11-09 | Nichia Corporation | LED characteristic memory for LED display apparatus |
| CN101202015A (en) * | 2007-08-22 | 2008-06-18 | 深圳市同洲电子股份有限公司 | Lightness data obtaining method and device for gamma correction of LED |
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