Bistable nematic liquid crystal display device with improved optical mask, having textures differing by about 180° twist, and off state in the liquid crystal covering the inter-electrode spaces
US7088413B2 · kind B2 · utility
8Cited by
4References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2002 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Feb 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133512
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a bistable nematic liquid-crystal device comprising: alignment means, which orient the liquid crystal, means designed to apply electrical signals which allow switching, by breaking the anchoring on at least one of the two substrates, between two distinct textures, and means designed to promote the establishment of that one of the said textures giving the off state in the liquid crystal covering the inter-electrode spaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.