Liquid crystal light valve with memory
US4622654A · kind A · utility
10Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1984 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Jan 16, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a device and method for the storage and conversion of a light input into a corresponding output with light from another source. The device includes an improved liquid crystal light valve having as a photosensor layer a deposited memory semiconductor material which is reversibily convertible between a first stable, relatively high electrical resistance condition and a second stable, relatively low electrical resistance condition. Each change of state or condition will remain after cessation of the input until stimulated to reverse to the other state, thereby achieving a storage or memory function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.