Ferroelectric liquid crystal mixture
US5695683A · kind A · utility
7Cited by
23References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1994 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Sep 29, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A ferroelectric liquid crystal mixture which does not lower the conventional transition temperature to the ferroelectric phase (60.degree. C. or above), which maintains the Sa phase within a suitable temperature range, and which is useful for reducing the cone angle is disclosed. The ferroelectric liquid crystal mixture contains at least one of the compounds represented by the following general formula 1 to 3, and exhibits a Sa/Sc phase transition temperature of 60.degree. C. or more and a cone angle of 47 degree or less atsome temperature between 15.degree. C. and 35.degree. C.: ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.