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A color mura elimination method

A channel and image data technology, applied in the direction of cathode ray tube indicators, static indicators, instruments, etc., can solve problems such as unsatisfactory color shift repair, and achieve the effect of eliminating color crosstalk and improving color shift problems.

Active Publication Date: 2020-05-26
WUHAN JINGLI ELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present application solves the problem of unsatisfactory color shift repair after Color Mura repair in the prior art by providing a Color Mura elimination method

Method used

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Embodiment Construction

[0023] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementations.

[0024] First, explain the terms that appear in the text.

[0025]

[0026] Due to the color crosstalk, the direct use of color camera data to calculate the compensation target value of any color contains interference from other color components, and the color cast cannot be eliminated after repair.

[0027] Based on the above phenomenon, the present invention proposes a method for repairing Color Mura to improve the crosstalk of the compensation target value.

[0028] This embodiment provides a Color Mura elimination method, which mainly includes the following steps:

[0029] Step 1. Obtain the grayscale image of the panel to be repaired L n ;

[0030] Step 2. According to the grayscale image to be repaired L n Obtain the first channel image data, the second ch...

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Abstract

The invention belongs to the technical field of display, and discloses a Color Mura elimination method. The method includes steps: firstly, obtaining a compensation target value of one channel, then calculating compensation target values of other two channels through a proportion between image data of three channels of a camera, and obtaining compensation values of three channels. According to themethod, the problem of non-ideal color cast restoration after Color Mura restoration in the prior art can be solved, the influence brought by color crosstalk can be effectively eliminated, and the problem of color cast after restoration can be improved.

Description

Technical field [0001] The present invention relates to the field of display technology, and in particular to a Color Mura elimination method. Background technique [0002] Flat-panel displays have the advantages of high resolution, high brightness, and no geometric distortion. At the same time, due to their small size, light weight and low power consumption, they are widely used in consumer electronics products that people use daily, such as TVs, computers, and mobile phones. , Tablet, etc. However, as the size of the flat-panel display becomes larger and larger, the uniformity of its brightness and chromaticity becomes more and more difficult to control, which causes uneven color spots (Mura) to the flat-panel display. Mura includes uneven brightness and color spots (Mono Mura) and uneven color spots (Color Mura), which can cause visual discomfort and seriously affect the quality of flat-panel displays. At present, all major flat panel display manufacturers rely on manual det...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/02
CPCG09G5/02
Inventor 唐斐郑增强轩慎振张胜森
Owner WUHAN JINGLI ELECTRONICS TECH