Ferroelectric chiral smectic liquid crystal composition
US4952335A · kind A · utility
15Cited by
11References
6Claims
0Family size
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Key dates
| Filing date | Aug 9, 1988 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Aug 9, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/46
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A ferroelectric chiral smectic liquid crystal composition affording a high response speed and being cheap so that a high speed switching can be effected, which composition comprises at least one achiral smectic C compound and at least one chiral smectic C compound, characterized in that at least one of said at least one achiral smectic C compound contains at least two divalent six-memberd ring, directly linked by at least one single bond, at least one of said at least two divalent six-membered rings being selected from pyrimidin-2,5-diyl, pyridin-2,5-diyl, 1,4-phenylene or trans-1,4-cyclohexylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.