Method for repairing defective cell of liquid crystal panel

Details Method for repairing defective cell of liquid crystal panel Method for repairing defective cell of liquid crystal panel

2011-01-11

2011-01-11

Kianni, K. Cyrus (Department: 2883)

Liquid crystal cells, elements and systems

Nominal manufacturing methods or post manufacturing...

Defect correction or compensation

C349S187000

Reexamination Certificate

active

07868993

ABSTRACT:
A method for repairing a defective cell of a liquid crystal panel includes: providing a liquid crystal panel including an upper array substrate with a black matrix and a pigment layer formed thereon, a lower array substrate with a thin film transistor and attached with the upper array substrate, and a liquid crystal layer formed between the upper and lower substrates and including a plurality of cells; forming a certain gap between the black matrix and the upper array substrate by irradiating laser to a defective cell region among the plurality of cells in the liquid crystal panel; forming a comb-like structure with a certain gap between its teeth between the pigment layer and the upper array substrate by irradiating laser to the defective cell region; processing the black matrix by irradiating laser to the defective cell region to generate black matrix particles; and dispersing the black matrix particles between the pigment layer and the upper array substrate, by irradiating laser to the defective cell region, such that the black matrix particles fills the gap between the pigment layer and the comb-like structure.

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