Fluorovinyl derivative compound, liquid crystal composition, and liquid crystal display device
US6207076A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | May 26, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/0459
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There are herein disclosed a fluorovinyl derivative compound represented by the general formula (1) and having characteristics of a liquid crystal, a liquid crystal composition, and a liquid crystal display device formed by using this composition: ##STR1## wherein R.sub.1 is an alkyl group having 1 to 18 carbon atoms, and a methylene group in the alkyl group may be substituted by an oxygen atom, a sulfur atom, --CH.dbd.CH-- or --C.tbd.C-- and a hydrogen atom in the alkyl group may be substituted a halogen atom or a cyano group; rings A, B and C are each 1,4-cyclohexylene, 1,4-phenylene or the like in which a hydrogen atom in the ring may be substituted by a halogen atom; Z.sub.1, Z.sub.2 and Z.sub.3 are each a single bond, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--, --CH.sub.2 O--, --OCH.sub.2 --, --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 --O--, --O--(CH.sub.2).sub.3 --, --(CH.sub.2).sub.2 --CH.dbd.CH--, --CH.dbd.CH--(CH.sub.2).sub.2 --, --CF.sub.2 O--, --OCF.sub.2 --, --CR.sub.2.dbd.CH--, --CH.dbd.CR.sub.2 -- or --CF.dbd.CF--, and R.sub.2 is an alkyl group having 1 to 5 carbon atoms; X is a hydrogen atom or a fluorine atom; p and q are each 0 or 1; and m is an integer of 0…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.