Smectic C liquid crystal composition and a liquid crystal display element
US5529717A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 30, 1994 |
| Grant date | Jun 25, 1996 |
| Priority date | — |
| Expiry date | Jun 30, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition containing a smectic C compound, having a .DELTA..epsilon. of negative value and enabling to effect a high speed response; a ferroelectric chiral smectic C liquid crystal composition using the same; and a ferroelectric liquid crystal display device using the ferroelectric chiral smectic C liquid crystal composition are provided, PA1 which composition containing a smectic C compound comprises at least one compound expressed by the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represent different linear alkyl groups of 1 to 9 C, and PA1 at least one compound expressed by the formula (II) ##STR2## wherein R.sup.3 and R.sup.4 each represent the same or different linear alkyl groups of 1 to 18 C and X is H or F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.