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Method and device for determining gray scale value of display panel

A technology for displaying panels and determining methods, which is applied to static indicators, cathode ray tube indicators, instruments, etc., and can solve the problems of large amount of calculation and low efficiency

Active Publication Date: 2019-08-13
ANALOGIX CHINA SEMICON +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for determining the grayscale value of a display panel, so as to at least solve the technical problem of low efficiency due to a large amount of calculation when calculating the grayscale value of a display panel in the related art

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  • Method and device for determining gray scale value of display panel

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Embodiment 1

[0039] According to an embodiment of the present invention, an embodiment of a method for determining a grayscale value of a display panel is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions , and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0040] figure 1 It is a flow chart of a method for determining a grayscale value of a display panel according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0041] Step S102 , fitting brightness values ​​corresponding to multiple gray scales of the display panel under the target area to obtain a target slope value and a target offset value.

[0042] Wherein, the area used as a reference for the brightness of the ...

Embodiment 2

[0067] figure 2 is a schematic diagram of a grayscale value determination device for a display panel according to an embodiment of the present invention, as shown in figure 2 As shown, the device may include: a fitting unit 21, configured to fit the luminance values ​​corresponding to multiple gray scales of the display panel under the target area to obtain a target slope value and a target offset value; a first determining unit 22 , used to determine the reference luminance value of the display panel at the target gray scale according to the target slope value and the target offset value; the second determination unit 23 is used to determine each The output grayscale value corresponding to the pixel.

[0068] Through the above-mentioned device, the fitting unit 21 can be used to firstly fit the luminance values ​​corresponding to the multiple gray scales of the display panel under the target area to obtain the target slope value and the target offset value, and then the fi...

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Abstract

The invention discloses a method and a device for determining gray scale values ​​of a display panel. Wherein, the method includes: fitting brightness values ​​corresponding to multiple gray scales of the display panel under the target area to obtain a target slope value and a target offset value; according to the target slope value and target offset value, determining the The reference brightness value of the display panel under the target gray scale; according to the reference brightness value, the output gray scale value corresponding to each pixel point under the target gray scale is determined. The invention solves the technical problem of low efficiency due to large amount of calculation when calculating the gray scale value of the display panel in the related art.

Description

technical field [0001] The present invention relates to the field of display technology, in particular, to a method and device for determining gray scale values ​​of a display panel. Background technique [0002] In related technologies, mura refers to the phenomenon that the brightness in the display surface is uneven, causing various traces, and demura is a technology that eliminates the mura of the display and makes the brightness of the picture uniform. The basic principle of Demura technology is to let the panel display a grayscale image, use a capacitive coupling device to capture the screen, obtain the brightness value of each pixel in the panel, and then adjust the grayscale value or voltage of the pixel in the Mura area. At present, when determining the grayscale value or voltage of each pixel point, the corresponding grayscale value is often calculated according to the gamma value of the display (the specific value indicating the distortion of the output image of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0271G09G2320/0233G09G2320/0285G09G2320/0276G09G5/10G09G2360/16G09G2320/0693G09G3/2011
Inventor 焦歆朱宁孙晓伟
Owner ANALOGIX CHINA SEMICON
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