Ferroelectric chiral smectic liquid crystal composition
Chisso Corporation and Hitachi, Ltd.
A ferroelectric liquid crystal composition having a long helical pitch and a light switching element having a quick response property are provided. This composition comprises (1) at least one member selected from the group consisting of liquid crystal compounds having a smectic C phase and no helical structure and liquid crystal compounds having only a nematic phase as a liquid crystal phase and no helical structure and (2) at least one chiral smectic liquid crystal compound.
1ClaimsFirst of 2
- 1
A ferroelectric chiral smectic liquid crystal composition comprising: (1) 30-99% by weight of at least one member selected from the group consisting of compounds expressed by the general formulas: ##STR109## wherein R.sub.19 represents an alkyl group having 9-18 carbon atoms; R.sub.20 represents an alkyl group having 7-18 carbon atoms; R.sub.23 represents an alkyl or an alkyloxy group having 6-18 carbon atoms; and R.sub.24 represents an alkyl group having 5-18 carbon atoms, said at least one…
2Description
1. Field of the Invention