Photorecording element and liquid crystal cell comprising the same
US4963448A · kind A · utility
39Cited by
3References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 31, 1988 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Aug 31, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A photorecording element is disclosed which consists of a transparent substrate, a molecular layer of an organic compound with an ability to change structure reversibly by virtue of light and disposed in direct contact with the transparent substrate, and a layer of liquid crystals disposed in direct contact with the molecular layer. A liquid crystal cell comprising the photorecording element is also disclosed. A modification having fine deformations on the surface of the transparent substrate and a modification having a dichroic dye contained in the layer of liquid crystals are embraced by the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.