Ferroelectric liquid crystal optical modulation device and driving method therefor for gray scale display
US4818078A · kind A · utility
35Cited by
7References
58Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1986 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Nov 25, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical modulation device comprises a first substrate having thereon a first conductor film, a second substrate having thereon a second conductor film disposed opposite to the first conductor film, and an optical modulation material disposed between the first and second substrates. The optical modulation device is driven by forming a potential gradient along the extension of the first conductor film or both the first and second conductor films, and applying an information signal to the first or second conductor film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.