Projection type liquid crystal displaying device
US4796978A · kind A · utility
65Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Jul 7, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection type liquid crystal display device includes a light source and condenser lenses for emitting two beams of light which are orthogonal to each other. One of the light beams passes through a liquid crystal panel of one color, and the other light beam is further divided into two light beams each of which passes through liquid crystal panels of other colors. The three light beams are then synthesized by dichroic mirrors and fed to a projection lens system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.