Arrangement for a polychrome display
US4019808A · kind A · utility
47Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 1976 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | May 5, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An arrangement for a polychrome display comprises in serial association a ght source, a linear polarizing filter, at least one nematic liquid crystal rotating element, and either a passive birefringent retardation plate followed by a further neutral linear polarizing filter or a selective polarizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.