Method and system for repairing flat panel display module Mura defects

Abstract

The invention discloses a method and a system for repairing flat panel display module Mura defects. The method comprises steps: S1) a standard brightness matrix S for a 255 gray-scale all-white image is acquired; S2) an n gray-scale image is inputted to obtain a flat panel display module, and a display picture of the flat panel display module is acquired to obtain a display picture brightness matrix I; S3) according to the standard brightness matrix S and the display picture brightness matrix I, a brightness normalization factor K is calculated, and the brightness normalization factor K and the standard brightness matrix S are multiplied to obtain a brightness correction matrix T; and S4) according to the difference between the display picture brightness matrix I and the brightness correction matrix T, a compensation data matrix R is obtained. Through building the standard brightness matrix, influences on the repairing result by distortion brought by an imaging brightness sensor and an Mura defect area brightness value can be avoided; and an iterative method is used for Mura defect repairing, and the problem that one-time repairing can not achieve ideal effects can be solved.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a method and system for repairing mura defects of a flat display module based on machine vision. Background technique [0002] Flat-panel displays have the advantages of high resolution, high brightness, and no geometric deformation. 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 every day, such as TVs, computers, and mobile phones. , Tablet, etc. The flat-panel display module is the main part of the flat-panel display. Its manufacturing process is complex and requires nearly a hundred processes. Therefore, various display defects will inevitably occur during the manufacturing process, and these display defects are more common Mura (color spot) defects. The mura defect is that under the same light source and the same background color, different colors or d...

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Problems solved by technology

[0004] Aiming at the deficiencies of the above-mentioned prior art, the present invention discloses a method and system for repairing the mura defect of a flat display module. By establishing a standard brightness matrix, the distortion caused by the imaging brightness sensor and the influence of the brightness value of the mura defect area on the repair result are avoided. Influence; and repairing Mura defects in an iterative manner can solve the problem that one repair cannot achieve the desired effect

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