Arrangement for a polychrome display
US4239349A · kind A · utility
84Cited by
8References
8Claims
0Family size
Inventor
Key dates
| Filing date | Jun 7, 1974 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Jun 7, 1994 |
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 light 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.