Ferroelectric display panel and driving method therefor to achieve gray scale
US4709995A · kind A · utility
233Cited by
5References
68Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1985 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Aug 7, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0204
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display panel comprising a liquid crystal device comprising a plurality of picture elements arranged in a plurality of rows and columns, each picture element comprising a ferroelectric crystal under bistability condition showing either a first or a second orientation state; means for orienting the ferroelectric liquid crystal to either one of the first and second orientation states at respective picture elements; and means for controlling the duration of the first or second orientation state at respective picture elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.