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Display device color brightness compensation method, compensation device and compensation system

A technology for display equipment and color brightness, which is applied in the field of image processing and can solve the problems of uneven color brightness and small brightness loss of display equipment.

Active Publication Date: 2011-12-07
GUANGDONG VTRON TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the problems existing in the above-mentioned prior art, the object of the present invention is to provide a display device color brightness compensation method, compensation device and compensation system, which can effectively improve the problem of uneven color brightness of the display device, and brightness loss Small

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  • Display device color brightness compensation method, compensation device and compensation system
  • Display device color brightness compensation method, compensation device and compensation system
  • Display device color brightness compensation method, compensation device and compensation system

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Embodiment Construction

[0031] Hereinafter, the scheme of the present invention will be described in detail with several specific embodiments.

[0032] See figure 1 As shown, it is a schematic flowchart of the first embodiment of the color and brightness compensation method for a display device of the present invention. As shown in the figure, the compensation method in this embodiment includes the steps:

[0033] Step S101: Put the display device in an uncompensated state and output a full-color test chart, and take a picture of the full-color test chart to obtain a full-color test chart image, and then go to step S102;

[0034] Step S102: intercepting the effective area from the full-color test chart image, correcting the dead pixels in the intercepted effective area, and adjusting the resolution of the corrected effective area to be consistent with the resolution of the display device, Go to step S103;

[0035] Step S103: Determine a reference point according to the pixel value of each pixel point of the ...

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Abstract

The display device color brightness compensation method, compensation device and compensation system intercept the effective area from the captured full-color test chart image, correct the dead pixels in the effective area, and adjust the resolution of the corrected effective area to match the The consistency of the display device, the reference point is determined according to the pixel value of each pixel in the adjusted effective area, the compensation coefficient of each pixel is calculated according to the reference point and the pixel value of each pixel, and each pixel of the input signal is adjusted according to the compensation coefficient The pixel value of the point is corrected. Since the pixel values ​​of each pixel of the full-color test chart image in an ideal state are consistent, the compensation coefficient obtained according to the pan-color test chart image is closer to the actual situation, and the correction can be made according to the compensation coefficient thus obtained. It can effectively improve the problem of uneven color and brightness of the display device, and can effectively eliminate the dark edges and dark corners of the display device, especially in the field of splicing display, which can greatly improve the display effect, and the brightness loss is small.

Description

Technical field [0001] The present invention relates to the field of image processing technology, and in particular to a compensation method, compensation device and compensation system for compensating the color brightness of a display device. Background technique [0002] In the current technical field of large-size screen display, the technical methods used mainly include projection technology and flat-panel display technology. Among them, in the projection display technology, due to the unevenness of the illumination spot and the optical path, the The displayed image has the problem of uneven color brightness. In flat panel display technology, the uneven distribution of the background light source will also cause the displayed image to have uneven color brightness. If it is only a single display, This kind of unevenness is not easy to be observed by the naked eye, and if it is applied to the splicing display, it will become very obvious, and there will be a very obvious probl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/02G09G5/10
Inventor 刘文军许广
Owner GUANGDONG VTRON TECH CO LTD
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