Liquid crystal device and projection display device
US7570328B2 · kind B2 · utility
2Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Feb 15, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal device includes a pair of substrates; a liquid crystal layer interposed between the pair of substrates, the liquid crystal layer being composed of liquid crystal having negative dielectric anisotropy in which an initial alignment state thereof is vertical; and an optical compensating plate which is provided outside at least one substrate of the pair of substrates and has negative refractive index anisotropy. The liquid crystal is pretilted in a predetermined direction, and an optical axis direction of the optical compensating plate is substantially parallel to the pretilt direction of the liquid crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.