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Gamma circuit adjustment method and device

A circuit adjustment and gamma technology, which is applied to cathode ray tube indicators, instruments, static indicators, etc., can solve the problems of cumbersome gamma correction process, low precision, and long time consumption

Active Publication Date: 2018-05-15
BOE TECH GRP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method and device for adjusting a gamma circuit to solve the problems of cumbersome, time-consuming and low-precision gamma correction process in the prior art

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  • Gamma circuit adjustment method and device
  • Gamma circuit adjustment method and device

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] Such as figure 1 As shown, the present invention provides a method for gamma circuit adjustment, the method comprising:

[0030] Step 100, determining the voltage value of each group of red, green and blue sub-pixels corresponding to the brightness of white light and the color coordinates of white light;

[0031] Step 101, for any color sub-pixel, determine the color coordinates of the color sub-pixel corresponding to the different...

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Abstract

The invention discloses a Gamma circuit adjustment method and device. The invention aims to solve the problems of cumbersome process, long consumed time, and low precision of gamma correction in the prior art. According to the gamma correction of the invention, the brightness of the sub-pixels of each color in white light is obtained according to the brightness and the color coordinates of the white light and the color coordinates of corresponding sub-pixels of each color; corresponding relations between the brightness of the sub-pixels of each color in the white light and the voltage values of the corresponding sub-pixels are established; voltage target values are found in the corresponding relations according to the brightness of the sub-pixels of each color in the white light corresponding to a calculated arbitrary gray scale; and the voltages of red, green and blue sub-pixels are debugged to the target values. Thus, the Gamma correction does not need to adjust and test the voltagesof red and green sub-pixels in the voltages of the red, green and blue sub-pixels a plurality of times, so that the Gamma correction process is simple and consumes less time; and the accurate valuesof the voltages of the sub-pixels of each color at each gray scale can be obtained, so that accuracy is high.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method and device for adjusting a gamma circuit. Background technique [0002] At present, due to the inconsistency of the electro-optical characteristics of the red, green and blue colors of the display device, the color difference of each gray scale is relatively large. And only when the colors of each gray scale are consistent, the color temperature can be adjusted to the required color temperature through the white balance adjustment of bright and dark fields. Therefore, it is necessary to correct the color of each gray scale and remove the color error of each gray scale, so that the display can be adjusted through white balance. Clearing the color error of each gray scale can be achieved by performing Gamma (gamma) correction on the display. [0003] At present, in the prior art, when performing Gamma correction, the gray scale brightness and color coordinates of the bi...

Claims

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Application Information

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IPC IPC(8): G09G3/20
CPCG09G3/2003G09G3/3607G09G5/10G09G2320/0233G09G2320/0242G09G2320/0276G09G2320/0666G09G2320/0673G09G2360/16
Inventor 祝文秀
Owner BOE TECH GRP CO LTD
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