Memory ferroelectric display addressed with AC and DC voltages
US4668051A · kind A · utility
36Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1984 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Dec 31, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/141
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A memory display device using a chiral C or H smectic liquid crystal, comprising a liquid crystal cell in which optically discernible textures are induced by means of DC electric fields of appropriate signs, these textures being maintained under the effect of AC electric fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.