Method for aligning polarizer and rubbing axes in a fringe field switching liquid crystal display device
US7161649B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2004 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Dec 9, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/134372
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosure is a method for asymmetrically aligning polarizer and rubbing axes of a fringe field switching liquid crystal display, which removes a ghost image and a rubbing mura, caused by an electric field applied to a panel under a low gray scale and dark state, by twisting an optical axis of a polarizer plate and rubbing optical axes of upper and lower plates. The Disclosure aligns polarizer and rubbing axes of a lower plate into which polarizing light is incident in such a manner that an angle formed between the polarizer and rubbing axes is a first predetermined angle and aligns polarizer and rubbing axes of an upper plate through which the polarizing light passes via a liquid crystal in such a manner that an angle formed between the polarizer and rubbing axes is a second predetermined angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.