Gamma curve correction method of display device and display device

A display device, gamma curve technology, applied in static indicators, instruments, etc., can solve the problems of inaccurate gamma curve and affect the quality of output images, and achieve the effect of solving inaccurate gamma curve and improving quality

Active Publication Date: 2017-05-31
BOE TECH GRP CO LTD
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Problems solved by technology

However, in existing display devices, the preset gamma curve is realized by an algorithm, which has not been corrected by optical equipment, and the resulting gam

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  • Gamma curve correction method of display device and display device
  • Gamma curve correction method of display device and display device
  • Gamma curve correction method of display device and display device

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[0023] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.

[0024] It should be noted that all the expressions using "first" and "second" in the embodiments of the present invention are used to distinguish two entities with the same name but not the same or parameters that are not the same, as shown in "first" and "second" Only for the convenience of presentation, it should not be construed as a limitation to the embodiments of the present invention, and subsequent embodiments will not describe this one by one.

[0025] The embodiment of the present invention provides a gamma curve correction method of a display device. The core idea of ​​the method is to conduct an experimental test for each display device, and calculate the difference between the input gray scale value and the ...

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Abstract

The invention discloses a Gamma curve correction method of a display device and the display device. The method comprises steps as follows: a standard Gamma curve is determined according to the display device; multiple test gray values are selected from the standard Gamma curve, and multiple types of target luminance corresponding to the multiple test gray values are obtained; an input gray value of the display device is adjusted to enable the display luminance of the display device to be equal to multiple types of target luminance, and multiple test corrected gray values are obtained; the test corrected gray values are corresponding input gray values when the display luminance of the display device is equal to the target luminance; a correlation between the input gray values and the corrected gray values of the display device is generated according to the multiple test gray values and the multiple test corrected gray values; the input gray values of the display device are adjusted to the corrected gray values. The inaccurate preset Gamma curve of the display device is corrected, and the quality of an output image of the display device is effectively improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gamma curve correction method for a display device and a display device. Background technique [0002] Because the visual characteristics of the human eye have a nonlinear relationship with the brightness of the surrounding environment. Therefore, the existing display device performs gamma correction (Gamma correction) on the output image through a preset gamma curve (Gamma curve) to meet the visual requirements of human eyes. However, in existing display devices, the preset gamma curve is realized by an algorithm, which has not been corrected by optical equipment, and the resulting gamma curve often deviates from the standard gamma curve, that is, the so-called gamma curve is inaccurate , which seriously affects the quality of the output image. Contents of the invention [0003] In view of this, the object of the present invention is to provide a gamma curve corre...

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Application Information

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IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0276G09G2320/0673G09G3/006G09G3/2003
Inventor 孟松李全虎
Owner BOE TECH GRP CO LTD
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