Liquid crystal display device
US6801283B2 · kind B2 · utility
140Cited by
5References
18Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 2, 2003 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | May 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display device has an elliptic polarizer consisting of a polarizer, a first retarder, and a second retarder, and a reflector reflecting light in a visual light range. Optimal values for a twist angle of a liquid crystal layer, an angle between a transmission axis of the polarizer and a slow axis of the first retarder, an angle between the slow axis of the first retarder and a slow axis of the second retarder, and a product of birefringence &Dgr;n of liquid crystal material used in the liquid crystal layer and a thickness d of the liquid crystal layer are evaluated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.