Liquid-crystal compound, liquid crystal composition and liquid crystal display device
US4645305A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Nov 23, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/2007
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present liquid crystal compounds are novel ester-type compounds showing a smectic liquid crystal phase and being capable of increasing a dielectric constant anisotropy, represented by the following general formula: R--X.sub.1 --Y.sub.1 --X.sub.2 --Y.sub.2 --NO.sub.2, wherein R is an alkyl group; X.sub.1 and X.sub.2 are the same or different from each other and are group --COO-- and --OOC--, and when X.sub.1 is group --COO--, ##STR1## The present liquid composition contains the novel compound, and the present liquid crystal display device uses the liquid crystal composition for utilizing the characteristics of the novel compound. Particularly, the present liquid crystal display device is a thermally addressed display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.