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Gamma curve correction method for display device and display device

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

Active Publication Date: 2019-10-08
BOE TECH GRP CO LTD
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  • Description
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  • Application Information

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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 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

Method used

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

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0024] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0025] An embodiment of the present invention provides a gamma curve correction method of a display device. The core idea of ​​the method is: 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 a display device. The method includes: determining a standard gamma curve according to the display device; selecting a plurality of test gray scale values ​​on the standard gamma curve to obtain the multiple A plurality of target luminances corresponding to a test gray scale value; adjusting the input gray scale value of the display device, so that the display brightness of the display device is respectively equal to the multiple target brightnesses, and obtaining multiple test correction gray scale values; The test correction gray scale value is the corresponding input gray scale value when the display brightness of the display device is equal to the target brightness; according to the multiple test gray scale values ​​and multiple test calibration gray scale values, generate the display device The correlation between the input gray-scale value and the corrected gray-scale value; according to the correlation, the input gray-scale value of the display device is adjusted to the corrected gray-scale value; the present invention does not accurately preset the display device The gamma curve is corrected to effectively improve the quality of the output image of the display device.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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