CN101377900A - LED display system and display method thereof - Google Patents
LED display system and display method thereof Download PDFInfo
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- CN101377900A CN101377900A CNA2008102235133A CN200810223513A CN101377900A CN 101377900 A CN101377900 A CN 101377900A CN A2008102235133 A CNA2008102235133 A CN A2008102235133A CN 200810223513 A CN200810223513 A CN 200810223513A CN 101377900 A CN101377900 A CN 101377900A
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- 238000000034 method Methods 0.000 title abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 230000000007 visual effect Effects 0.000 claims abstract description 6
- 238000012856 packing Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 12
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 claims description 2
- 238000012937 correction Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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Abstract
The invention discloses an LED display system and comprises a transmission control unit, a display data source, and an LED display screen that consists of a display drive unit and a plurality of LED lamp points. The LED display screen is sequentially connected with the transmission control unit and the display data source and used for reproducing the visual effect of display data from the display data source, wherein, a pointwise adjusting unit is arranged between the display data source and the LED display screen and used for adjusting the display data and leading the LED lamp points to have even brightness. The LED display system has a whole convenient and fast adjusting process, shortened calibrating work time, and improved calibrating precision and calibrating efficiency of the LED display screen.
Description
Technical field
The present invention relates to the LED field, relate in particular to a kind of LED display system and display packing thereof.
Background technology
As everyone knows; LED display is to be formed by discrete arrangement of ten hundreds of LED lamp points; and each LED lamp point blocks reason or even LED lamp point many-sided reason such as aging in use owing to the shade of the effect of dust that falls, guard lamp point on inconsistent, the LED lamp point of the angle of LED lamp point in difference, production and the installation process of its optical characteristics own; the inhomogeneous of brightness between the LED lamp point caused in the capital; thereby the picture that directly causes LED display is the granular sensation of pit point; both discontinuous; also imperfect, visual effect is relatively poor.
The optical characteristics of LED lamp point itself wherein, the brightness that mainly refers to the LED lamp and colourity be along with viewing angle is different and different, and the brightness of LED lamp point is inconsistent with the variation relation of electric current and attenuation characteristic etc.Solve the approach of this inconsistent phenomenon: the one, realize improving the consistance of LED lamp point optical characteristics by the raising of material and technology by LED manufacturer; The 2nd, improve the homogeneity of LED display by pointwise correction to LED lamp point.
At present, the user is more and more higher to the inhomogeneity requirement of LED display display brightness, but makes each LED lamp point all have identical optical characteristics owing to current technology is difficult to reach; And the factor in LED display production, the installation process can not guarantee LED display even brightness characteristic after installation; And LED display needs after aging to change or reconstruction need be changed the LED lamp from engineering, even changes the screen body, and these processes all need great amount of manpower and fund.
Therefore, there is defective in prior art, needs further improvement and solves.
Summary of the invention
The object of the present invention is to provide a kind of LED display system and display packing thereof,, just can make when LED lamp point shows in the LED display system brightness even so that by shirtsleeve operation.
Technical scheme of the present invention is as follows:
A kind of LED display system, comprise transmission control unit, display data sources and the LED display of forming by display driver unit and a plurality of LED lamp point, described LED display is connected with described transmission control unit, described display data sources successively, is used to reproduce the visual effect of the video data of described display data sources; Wherein, between described display data sources and the described LED display, the pointwise adjustment unit is set also, is used to adjust described video data, make that the brightness of described LED lamp point is even.
A kind of display packing of LED display system may further comprise the steps:
A, the video data of LED display system is adjusted, made that the brightness of LED lamp point is even according to adjusting parameter;
B, adopt adjusted video data, drive described LED lamp point and show.
The invention provides a kind of LED display system and display packing thereof, by the pointwise adjustment unit is set in the LED display system, by the pointwise adjustment unit video data is carried out disposable adjustment, when having realized with adjusted video data driving LED lamp point, the brightness of LED lamp point can be evenly; Whole adjustment process is convenient, fast, has shortened the correction work time, has improved the correction efficient of correction accuracy and LED display.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of LED display system of the present invention;
Fig. 2 is the structural representation of second kind of embodiment of LED display system of the present invention;
Fig. 3 is the structural representation of first kind of embodiment of pointwise adjustment unit of the present invention;
Fig. 4 is the structural representation of second kind of embodiment of pointwise adjustment unit of the present invention;
Fig. 5 adjusts the process flow diagram of parameter acquiring process for the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in further detail.
The invention provides a kind of LED display system 100, as shown in Figure 1, connect and compose successively by display data sources 110, transmission control unit 130, display driver unit 140, be connected with numerous LED lamp point 150 on the wherein said display driver unit 140, form LED display 170 by described display driver unit 140 and its a plurality of LED lamp points 150 of going up setting.On physical distribution, described display data sources 110 and transmission control unit 130 are remote distributions with LED display 170, carry out the transmission of data by optical fiber; And described display driver unit 140 can be set to one with LED display 170.
Gradation data when the video data in the described display data sources 110 is 150 demonstrations of LED lamp point, this gradation data is specific value, derives from PC or other data and produces equipment.
Display data transmissions agreement in the described display data sources 110 between the form of gradation data and described display data sources 110 and the described transmission control unit 130 is well known to a person skilled in the art, and the Data Transport Protocol between described transmission control unit 130 and the display driver unit 140 is different with format of display data with respect to different LED display systems.Under the situation of not knowing Data Transport Protocol between described transmission control unit 130 and the display driver unit 140 and format of display data, the present invention is provided with pointwise adjustment unit 120 between described data presentation source 110 and transmission control unit 130, to finish the adjustment that described LED lamp is put 150 gradation datas, guarantee the brightness uniformity when described LED display 170 shows, and adjusted video data is sent to described transmission control unit 130 with agreement and the data layout that described transmission control unit 130 can receive.
When the data transfer mode between described transmission control unit 130 and the display driver unit 140 and format of display data when being known, the present invention is provided with pointwise adjustment unit 160 between described transmission control unit 130 and display driver unit 140, LED display system 200 as shown in Figure 2.Described transmission control unit 130 is converted to brightness data with the gradation data of described display data sources 110, and is transferred to described pointwise adjustment unit 160.The video data of 160 pairs of LED lamp points of described pointwise adjustment unit is a brightness data adjustment, described brightness data obtains after described transmission control unit 130 is handled gradation data, brightness data also is finally to control the value that the LED screen shows, brightness data to LED lamp point is adjusted, and can obtain accurate more display effect.Just, adopt optical fiber to be sent to described pointwise adjustment unit 120 by described transmission control unit 130 video data earlier; And then adjust according to adjusting parameter by 120 pairs of video datas of described pointwise adjustment unit, obtain adjusted video data; At last adjusted video data is sent to described display driver unit 140 with data protocol and the data layout that described display driver unit 140 can receive.Described pointwise adjustment unit 160 is with transmitting data by the connection of netting twine between the display driver unit 140.From the position of whole physical system that described pointwise adjustment unit 160 is very approaching with described LED display 170, therefore, in this case, in order to explain video data is transmitted through the fiber to described LED display 170 from being transmitted through the fiber to described pointwise adjustment unit 160 at a distance, can being similar to be expressed as with video data.160 of described pointwise adjustment units need to handle on the LED display needs the data of display part, data volume is little, bandwidth is little, data stability is high.
Described LED display system 200 provided by the invention and the method that display screen 170 is carried out the pointwise adjustment thereof are by video data being carried out disposable correction, being specially adapted to newly-built LED display is carried out pointwise correction.Because described LED display system 200 is directly brightness data to be adjusted, can guarantee that LED display has more to be uniform display effect; Also be applicable in the LED display production run and can have improved the production efficiency of LED display greatly, guaranteed the delivery cycle, reduce production costs the correction of brightness.
(Digital Visual Interface, DVI) transmission of gradation data ground is carried out in connection such as line or netting twine to described LED display system 100 with all adopting digital display interface between display data sources 110 in the LED display system 200 and the transmission control unit 130.
Described transmission control unit 130 is used for the long-distance transmissions of gradation data, and just by the Optical Fiber Transmission data, and the layout of described display data sources 110 is distributed.Described display driver unit 140 is used to be beneficial to video data and produces the signal that driving LED lamp point 150 shows, to realize the reproduction to the visual effect of video data in the described display data sources 110.
Described pointwise adjustment unit 120 connects and composes by adjusting parameter storage unit 121 and adjusting processing unit 122, as shown in Figure 3; Described pointwise adjustment unit 160 connects to form by adjusting parameter storage unit 121 and brightness adjustment processing unit 123, as shown in Figure 4.Wherein adjust the adjustment parameter of parameter storage unit 121 each lamp point 150 of storage, promptly for described pointwise adjustment unit 120, storage is to the adjustment parameter of lamp point gray scale; To described pointwise adjustment unit 160, storage is to the adjustment parameter of lamp point brightness.Described gray scale adjusts processing unit 122 and brightness adjustment processing unit 123 is adjusted the video data that higher level's link sends according to adjusting parameter, the video data that receives be multiply by the adjustment parameter that is stored in correspondence position in the storage unit, obtain adjusted video data.Described pointwise adjustment unit 120 is identical with the method for described pointwise adjustment unit 160 processes and displays data, all makes the video data of exporting can guarantee the homogeneity of LED brightness; What difference was described pointwise adjustment unit 120 processing is gradation data, and 160 processing of described pointwise adjustment unit is brightness data.
Adjusting parameter in the described adjustment parameter storage unit 121 is to utilize camera to take pictures to obtain the display performance parameter of LED display, and then can draw each adjustment parameter to the adjustment of lamp point, as shown in Figure 5, specifically may further comprise the steps:
The scope of taking pictures determines that according to camera resolution require each lamp point preferably to account for about 10 pixels, the spacing between the lamp point 150 is about 15 pixels.And the computing formula of the display screen scope that every photo can be taken is as follows:
Lamp breadth extreme=camera breadth extreme resolution/lamp dot center the distance of counting
Lamp maximum height=camera maximum height resolution/lamp dot center the distance of counting
Described lamp dot center is apart from adopting pixel distance to weigh, it represents the distance between the 2 LED lamp points, the setting of this distance will guarantee that each LED lamp point all can be discerned on the photo, a preferred value of the pixel distance of wherein said LED lamp dot center distance is 15 pixels, can also be 14 or 16 pixels, or between 10 to 20 pixels.
The lamp that draws breadth extreme and the lamp maximum height of counting of counting is multiplied each other, just obtain to take the scope of LED display.
The adjustment parameter acquiring of step 306, LED lamp point finishes, and downloads to then in the adjustment parameter storage unit in the pointwise adjustment unit.
LED display system provided by the invention and display packing thereof by the adjustment parameter of storage is carried out disposable adjustment to video data, reach the disposable purpose of finishing correction of LED lamp point, have shortened the correction work time; LED display packing provided by the invention need not to use the optical device of specialty, reduced system's operation cost, can in several hours, proofread and correct a large-scale LED display, practical and solved this problem of LED display brightness irregularities economically, and whole adjustment process is convenient, fast, has shortened the correction work time.The present invention adopts the operating process of standard to carry out gamma correction, has reduced mistake and error that human factor causes, has improved the correction efficient of correction accuracy and LED display.
Should be understood that above-mentioned statement at preferred embodiment of the present invention is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (14)
1, a kind of LED display system, comprise transmission control unit, display data sources and the LED display of forming by display driver unit and a plurality of LED lamp point, described LED display is connected with described transmission control unit, described display data sources successively, is used to reproduce the visual effect of the video data of described display data sources;
It is characterized in that, between described display data sources and the described LED display, the pointwise adjustment unit is set also, be used to adjust described video data, make that the brightness of described LED lamp point is even.
2, LED display system according to claim 1, it is characterized in that, described pointwise adjustment unit comprises interconnective adjustment parameter storage unit and adjusts processing unit, described adjustment processing unit is adjusted the video data of input according to the adjustment parameter in the described adjustment parameter storage unit.
3, LED display system according to claim 2 is characterized in that, described pointwise adjustment unit is arranged between described display data sources and the described transmission control unit;
Described adjustment processing unit is that gray scale is adjusted processing unit, is used to handle the video data of gradation data form;
Described transmission control unit is used for adjusted gradation data is converted to brightness data and is transferred to driving control unit.
4, LED display system according to claim 2 is characterized in that, described pointwise adjustment unit is arranged between described transmission control unit and the described display driver unit;
Described adjustment processing unit is that processing unit is adjusted in brightness, is used to handle the video data of brightness data form;
Described transmission control unit is used for the gradation data of described display data sources is converted to brightness data, and is transferred to described pointwise adjustment unit.
5, a kind of display packing of LED display system may further comprise the steps:
A, the video data of LED display system is adjusted, made that the brightness of LED lamp point is even according to adjusting parameter;
B, adopt adjusted video data, drive described LED lamp point and show.
6, display packing according to claim 5 is characterized in that, steps A also comprises adjusted video data, gives the LED display of described LED display system by Optical Fiber Transmission.
7, display packing according to claim 5 is characterized in that, wherein, in the described steps A, video data and adjusted video data before adjusting are gradation data.
8, display packing according to claim 5 is characterized in that, steps A also comprises by optical fiber display data transmissions to be adjusted described video data then to the LED display of described LED display system.
9, display packing according to claim 8 is characterized in that, in the described steps A, video data and adjusted video data before adjusting are brightness data.
10, display packing according to claim 5 is characterized in that, described adjustment may further comprise the steps: adopt the adjustment parameter to multiply by video data, as adjusted video data.
11, display packing according to claim 5 is characterized in that, obtaining of described adjustment parameter may further comprise the steps:
A1, determine that camera takes the scope of the LED display of described LED display system;
A2, the zone except that described scope, the display screen blank screen of control LED display system;
A3, the Show Color of LED display is set;
A4, obtain the gray-scale value of light emitting LED lamp point in the imaging picture, calculate the adjustment parameter of described LED lamp point.
12, display packing according to claim 11 is characterized in that, the scope of the LED display of taking in the described steps A 1 is lamp the count product of maximum height of breadth extreme and lamp of counting.
13, display packing according to claim 12 is characterized in that, the described lamp breadth extreme of counting is the merchant of camera breadth extreme resolution and lamp dot center distance; The described lamp maximum height of counting is the merchant of camera maximum height resolution and lamp dot center distance.
14, display packing according to claim 13 is characterized in that, described lamp dot center is apart from being 15 pixels.
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| CN2008102235133A CN101377900B (en) | 2008-09-28 | 2008-09-28 | LED display system and display method thereof |
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| CN2008102235133A CN101377900B (en) | 2008-09-28 | 2008-09-28 | LED display system and display method thereof |
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| CN101377900B CN101377900B (en) | 2013-08-28 |
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| CN101763779A (en) * | 2009-12-30 | 2010-06-30 | 北京巨数数字技术开发有限公司 | Ultrathin LED display screen and LED display system |
| CN101814260A (en) * | 2009-12-23 | 2010-08-25 | 北京巨数数字技术开发有限公司 | Light and thin LED display screen and LED display system |
| CN101923820A (en) * | 2010-07-27 | 2010-12-22 | 深圳市中庆微科技开发有限公司 | LED display screen spot-spot correction system with master-slave mode |
| CN102155650A (en) * | 2010-12-29 | 2011-08-17 | 深圳市中庆微科技开发有限公司 | LED (light-emitting diode) module with parameter storage |
| CN101515438B (en) * | 2009-03-18 | 2013-11-06 | 北京中庆微数字设备开发有限公司 | Display system of point-to-point brightness control and a method |
| CN104464633A (en) * | 2014-12-25 | 2015-03-25 | 西安诺瓦电子科技有限公司 | Method and device for correcting LED display units |
| CN105139800A (en) * | 2015-08-28 | 2015-12-09 | 西安诺瓦电子科技有限公司 | Abnormal lamp point processing method after correction of LED display device |
| CN105744262A (en) * | 2014-12-12 | 2016-07-06 | 致茂电子(苏州)有限公司 | Detection system capable of correcting light source, and light source correction method thereof |
| CN107976301A (en) * | 2017-11-28 | 2018-05-01 | 苏州切思特电子有限公司 | A kind of system for measuring automobile tail light brightness uniformity |
| WO2018201559A1 (en) * | 2017-05-05 | 2018-11-08 | 深圳市华星光电半导体显示技术有限公司 | Video signal adjuster and video signal adjusting method for display device |
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| CN101814260A (en) * | 2009-12-23 | 2010-08-25 | 北京巨数数字技术开发有限公司 | Light and thin LED display screen and LED display system |
| CN101763779A (en) * | 2009-12-30 | 2010-06-30 | 北京巨数数字技术开发有限公司 | Ultrathin LED display screen and LED display system |
| CN101763779B (en) * | 2009-12-30 | 2014-12-03 | 北京巨数数字技术开发有限公司 | Ultrathin LED display screen and LED display system |
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| CN101923820A (en) * | 2010-07-27 | 2010-12-22 | 深圳市中庆微科技开发有限公司 | LED display screen spot-spot correction system with master-slave mode |
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| CN104464633A (en) * | 2014-12-25 | 2015-03-25 | 西安诺瓦电子科技有限公司 | Method and device for correcting LED display units |
| CN105139800A (en) * | 2015-08-28 | 2015-12-09 | 西安诺瓦电子科技有限公司 | Abnormal lamp point processing method after correction of LED display device |
| CN105139800B (en) * | 2015-08-28 | 2017-11-17 | 西安诺瓦电子科技有限公司 | Abnormal lamp point processing method after LED display correction |
| WO2018201559A1 (en) * | 2017-05-05 | 2018-11-08 | 深圳市华星光电半导体显示技术有限公司 | Video signal adjuster and video signal adjusting method for display device |
| CN107976301A (en) * | 2017-11-28 | 2018-05-01 | 苏州切思特电子有限公司 | A kind of system for measuring automobile tail light brightness uniformity |
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Effective date of registration: 20191015 Address after: 315000 room 3-163, building 2, Chuangye building, No. 66, academician Road, high tech Zone, Ningbo City, Zhejiang Province Patentee after: Ningbo Xichu Lighting Co., Ltd. Address before: 518172, Shenzhen District, Guangdong City, Longgang Province, Huang Ting North Road, Tian An, Longgang Digital Town 2, A303 Patentee before: Fan Hong Xia |
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Effective date of registration: 20201120 Address after: Building A14, Baolin Industrial Park, Chengbei street, Rugao City, Nantong City, Jiangsu Province Patentee after: Jiangsu Yazhen Electric Power Co., Ltd Address before: 315000 room 3-163, building 2, Chuangye building, No. 66, academician Road, high tech Zone, Ningbo City, Zhejiang Province Patentee before: Ningbo Xichu Lighting Co.,Ltd. |