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Color correction method and system for multi-screen display device

A multi-screen display and color correction technology, applied in the field of color correction, can solve the problems of low correction efficiency and poor effect, and achieve good display effect and good color consistency

Inactive Publication Date: 2013-04-17
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a method and system for color correction of a multi-screen display device for the above-mentioned problems of low correction efficiency and poor effect

Method used

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  • Color correction method and system for multi-screen display device

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Embodiment Construction

[0019] The specific implementation manner of the color correction method for a multi-screen display device of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] figure 1 A flow chart of a method for color correction of a multi-screen display device according to an embodiment is shown, including the following steps:

[0021] Step S10: collecting the chromaticity and brightness of the R, G, and B colors of each display unit of the multi-screen display device.

[0022] In one embodiment, the color of each display unit of the multi-screen display device is measured and collected by using a color measuring instrument (such as a wireless spectrometer), and the collected data includes chromaticity and brightness of R, G, and B channels.

[0023] Step S20: Calculate the corrected luminance values ​​required for the R, G, and B light sources of each of the display units to be corrected to the target chromaticity and luminance ...

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Abstract

The invention discloses a color correction method and a color correction system for a multi-screen display device. The method comprises the following steps: acquiring chroma and brightness of red, green and blue (R, G and B) of each display unit of the multi-screen display device; calculating corrected brightness values required by correcting R, G and B light sources of each display unit to reach the target chroma and brightness according to the chroma and brightness; calculating corrected current values corresponding to the R, G and B light sources of each display unit according to the corrected brightness value and a relation model between the brightness of the R, G and B light sources and current; and correcting current values of the R, G and B light sources of each display unit according to the corrected current values. After the multi-screen display device is corrected, the color consistence of each display unit of the multi-screen display device is good; and compared with the traditional signal compression correction method, a current value correction method can keep the color layering among display units and has better display effect.

Description

technical field [0001] The invention relates to color correction technology, in particular to a color correction method and system for a multi-screen display device. Background technique [0002] A multi-screen display device (such as a splicing wall) is a large-screen display system composed of multiple display units and image controllers, and is generally used for super-large-screen display of one screen and multi-window display of multiple screens. Since there are differences among the colors of the R, G, and B light sources among the display units, it is necessary to correct the colors of the display units. [0003] The traditional multi-screen display device color correction technology generally requires professional color debuggers to manually adjust the color display parameters through human eye observation, which not only requires professional training for debuggers, but also takes a long time for debugging. Low, and the existing correction technology is to adjust t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/02G09G5/14
Inventor 武海丽刘兴旺
Owner GUANGDONG VTRON TECH CO LTD
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