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Gamma curve adjusting method and device and display device

A technology of gamma curve and adjustment method, which is applied in the field of gamma curve adjustment, can solve problems such as excessive gamma value adjustment and color coordinates that do not meet the requirements, and achieve the effect of gamma curve correction

Inactive Publication Date: 2016-08-17
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a gamma curve adjustment method, device and display device to solve the problems in the prior art that the gamma value adjustment is too large or the color The coordinates do not meet the requirements

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  • Gamma curve adjusting method and device and display device
  • Gamma curve adjusting method and device and display device
  • Gamma curve adjusting method and device and display device

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0031] Such as figure 1 As shown, the gamma curve adjustment method described in the embodiment of the present invention includes:

[0032] S1: Set N test gray scales; N is a positive integer;

[0033] S2: Adjust the red gamma voltage, green gamma voltage and blue gamma voltage corresponding to each test gray scale, so that the color coordinates corresponding to each test gray scale are within the corresponding predetermined color coordinate range, and detect...

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Abstract

The invention provides a gamma curve adjusting method and device and a display device. The gamma curve adjusting method comprises the following steps: setting N testing gray scales; adjusting until a corresponding chromaticity coordinate of each testing gray scale is in a corresponding preset chromaticity coordinate range and detecting actually measured brightness corresponding to each testing gray scale; obtaining an actual gamma curve according to the testing gray scales and the actually measured brightness; and when the testing gray scales are greater than or equal to a first preset gray scale or smaller than or equal to a second preset gray scale, adjusting red gamma voltages corresponding to the testing gray scales so that an absolute value of difference between the corresponding actual relative brightness of the testing gray scales and the standard relative brightness of the testing gray scales is smaller than preset brightness difference. By the gamma curve adjusting method and device and the display device in an embodiment of the invention, the gamma curve can be corrected, and requirements of chromaticity coordinates can be met.

Description

technical field [0001] The present invention relates to the technical field of gamma curve adjustment, in particular to a gamma curve adjustment method, device and display device. Background technique [0002] The existing gamma curve adjustment method is to set multiple test gray levels; then adjust the red gamma voltage, green gamma voltage and blue gamma voltage corresponding to each test gray level, so that each test gray level corresponds to The color coordinates of the color coordinates are within the corresponding predetermined color coordinate range, and the measured brightness corresponding to each test gray scale is detected; the actual gamma curve is obtained according to the test gray scale and the measured brightness, and the actual gamma curve is compared with the standard Gamma curve; then adjust the red gamma voltage, green gamma voltage and blue gamma voltage at the same time for each test gray scale, but for high gray scale and low gray scale, the gamma of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0276G09G2320/0673
Inventor 李佳龙刘金星时凌云孙伟薛子姣
Owner BOE TECH GRP CO LTD
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