Liquid crystal device
US4011001A · kind A · utility
38Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1975 |
| Grant date | Mar 8, 1977 |
| Priority date | — |
| Expiry date | Mar 14, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/139
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A liquid crystal device comprises a liquid crystal element disposed in a cavity formed between a pair of transparent base plates which have a circular shape. One or more cut-out or recess portions are formed at the side edge of said base plates, and a light source is mounted within the recess portion whereby the display face of said liquid crystal device is illuminated by said light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.