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Color calibration method and device

A color calibration, color technology, used in cathode ray tube indicators, instruments, static indicators, etc., to achieve the effect of improving accuracy

Inactive Publication Date: 2015-07-08
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 device for color calibration for the problem of improving the accuracy of color calibration after using the overlap technology

Method used

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  • Color calibration method and device

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Embodiment Construction

[0018] The solution of the present invention will be described in detail below in conjunction with the preferred embodiments.

[0019] Such as figure 1 Shown is a schematic flow chart of an embodiment of the color calibration method of the present invention, including the steps:

[0020] Step S101: respectively detect the color coordinates of the R_Y component, the color coordinates of the G_Y component, the color coordinates of the G_C component and the color coordinates of the B_C component of each display unit, where the R_Y component represents the R component added to Y after the overlap technology is used, The G_Y component represents the G component added to Y after the overlap technology is used, the G_C component represents the G component added to C after the overlap technology is used, and the B_C component represents the B component added to C after the overlap technology is used;

[0021] Step S102: Determine the proportions of Y, C, and G to W respectively according to ...

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Abstract

A color calibration method includes steps of detecting chromaticity coordinates of R_Y components, G_Y components, G_C components and B_C components of all display units respectively; determining the brightness of Y and C; determining the brightness of the R_Y components and the G_Y components according to the preset target brightness and the preset chromaticity coordinates of R and G, the brightness and the preset chromaticity coordinates of Y and the chromaticity coordinates of the R_Y components and the G_Y components; determining the brightness of the G_C components and the B_C components according to the preset target brightness and the preset chromaticity coordinates of G and B, the brightness and the preset chromaticity coordinates of C and the chromaticity coordinates of the G_C components and the B_C components; and calculating tristimulus values of R, G, B, all the R_Y components, all the G_Y components, all the G_C components and all the B_C components and calibrating colors of all the display units according to the tristimulus values. The invention further provides a corresponding device. The color calibration method and device improve color calibration accuracy.

Description

Technical field [0001] The present invention relates to the technical field of color calibration, in particular to a method and device for color calibration. Background technique [0002] The splicing display system is a display system composed of multiple display units, and is generally used for super-large screen display of one screen and multi-window display of multiple screens. R (red, red), G (green, green), B (blue, blue), Y (yellow, yellow), C (cyan, cyan), M (Magenta, magenta), and W (white, white) are different for each display unit , The consistency of each display unit needs to be corrected before leaving the factory. Color consistency is an important indicator of the display effect of the display system. If the color of the display system is inconsistent, it will seriously affect the display effect of the display system. [0003] Based on the above reasons, the color consistency of each display unit of the display system must be corrected, for example, the color of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/02
Inventor 武海丽张晓伟
Owner GUANGDONG VTRON TECH CO LTD