Method of driving a ferroelectric liquid crystal element
US4725129A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1985 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Aug 21, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method of driving a liquid crystal element constituted by interposing a bistable ferroelectric liquid crystal between electrodes, a driving method of a liquid crystal element having a memory property characterized in that a first voltage signal the absolute value of a peak value of which is less than a predetermined value is applied to the ferroelectric liquid crystal in order to keep a light transmission state of said liquid crystal element, and a second voltage signal the absolute value of a peak value of which is over the predetermined value is applied to the ferroelectric liquid crystal in order to change the light transmission state of the liquid crystal element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.