Patent ID: 7868993
Filing Date: 2011-01-11
Classification: G02F

Abstract:
1. A method for repairing a defective cell of a liquid crystal panel, comprising: 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; performing a first laser irradiation for irradiating laser to a defective cell region among the plurality of cells in the liquid crystal panel to form a certain gap between the black matrix and the upper array substrate; performing a second laser irradiation for irradiating laser to the defective cell region to form a comb-like structure with a certain gap between its teeth between the pigment layer and the upper array substrate; performing a third laser irradiation for irradiating laser to the defective cell region to process the black matrix to generate black matrix particles; and performing a fourth laser irradiation for irradiating laser to the defective cell region to disperse the black matrix particles so as to be filled in the gaps between the teeth of the comb-like structure between the pigment layer and the upper array substrate.