Method for preparing and operating a smectic liquid crystal display cell having indefinite storage properties
US4139273A · kind A · utility
46Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1976 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Dec 27, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13781
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for preparing and operating dynamic scattering liquid crystal display cells having internal electrodes and containing a smectic liquid having positive dielectric anisotropy and incorporating a homeotrophic alignment inducing medium for the smectic liquid filling. The cell can be switched off to make the transition from dynamic scattering to static scattering for providing indefinite storage properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.