Liquid crystal display having liquid crystal cell gap variation
US6791657B2 · kind B2 · utility
8Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2001 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Nov 10, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133388
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light control device includes a GH cell and a polarizer wherein a host material is made of a negative type liquid crystal whose dielectric anisotropy is negative and a guest material is made of a dichromatic positive type dye. The polarizer is provided at a side of light incident on the polarizer. A cell gap ranges from 2 &mgr;m to 4 &mgr;m, at least, in an effective light path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.