Ferroelectric liquid crystal cells
US5124827A · kind A · utility
13Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1991 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Jan 28, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133734
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Relaxation effects of a uniform mode ferroelectric liquid crystal cell with obliquely evaporated alignment layers, characterized by the reduction in apparent tilt angle consequent upon removal of a switching stimulus, are eliminated by a poling treatment that typically comprises the application of a relatively low frequency (c. 500 Hz) relatively large amplitude (c. 60 volts peak-to-peak) electric potential difference across the thickness of the liquid crystal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.