Optical recording medium having a liquid crystal layer
US4752820A · kind A · utility
28Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1985 |
| Grant date | Jun 21, 1988 |
| Priority date | — |
| Expiry date | Feb 27, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/257
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium comprising a pair of substrates each having an electrode, the space between the substrate is filled with a high-dielectric liquid crystal to form a rewritable recording layer. The recording medium comprises radiation absorbing means to provide a change of directional orientation of the liquid crystal upon exposure to a laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.