Liquid crystal display device associating two addressing modes
US4499458A · kind A · utility
13Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1982 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Jun 9, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3603
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to cells using a smectic phase liquid crystal film and provides in the same cell two addressing modes: optical addressing by means of a laser beam and matrix addressing by means of heating electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.