Method for repairing defective cell of liquid crystal panel
US7868993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2008 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Mar 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1309
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.