Method of aligning a TFT plate with a color filter plate
US7123322B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2004 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Apr 13, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136213
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of aligning a TFT plate and a color filter plate of a liquid crystal display is described. The TFT plate has a capacity storage area formed thereon. The capacity storage area is designed within a black matrix area on the color filter plate. After a rubbing process, a bump in the capacity storage area of the TFT plate causes a first abnormal rubbing area, which is adjacent to a side of the bump. The color filter plate is shifted first, so that the first abnormal rubbing area is covered with a black matrix in the black matrix area on the color filter plate. The TFT plate is then aligned with the color filter plate. As a result, corner image sticking in a frame of the liquid crystal display is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.