Ferroelectric liquid crystal devices
US4867539A · kind A · utility
8Cited by
4References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 23, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Nov 23, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/2035
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Excellent ordering in ferroelectric liquid crystal devices is obtained by utilizing a material having a smectic C phase and no higher temperature orthogonal smetic phases. Ordering is accomplished by the combination of (1) contacting the liquid crystal material in the smectic C phase with an ordering substance and (2) subjecting the liquid crystal material to a slowly varying electric field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.