Ferro-electric liquid crystal electrol-optical device
US5395552A · kind A · utility
1Cited by
3References
9Claims
0Family size
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Key dates
| Filing date | Feb 10, 1993 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Feb 10, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/46
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A ferroelectric liquid crystal electro-optical device comprises a pair of plates having driving electrodes and ferroelectric liquid crystal material having a negative dielectric anisotropy. The ferroelectric liquid crystal material comprises a ferroelectric liquid crystal composition 10 to 80% by weight of a compound of the general formula: ##STR1## wherein R.sub.1 represents a straight-chain alkyl or alkoxy group, or an alkyl, alkoxy, alkoxyalkyl or acyloxy group each having an asymmetric carbon atom, and R.sub.2 represents a straight-chain alkyl group having an assymmetric carbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.