Optically active composition, mesomorphic compound and liquid crystal device
AssigneeCanon Kabushiki Kaisha
InventorsKazuo Yoshinaga, Kazuharu Katagiri, Toyoko Kobayashi, Kenji Shinjo
Life of this patent
Estimating the term…
Abstract
4-Alkoxybenzenethiol, bis-(4-alkoxyphenyl)disulfide, and mesomorphic compound deviced therefrom represented by the formula: ##STR1## wherein R.sub.1 is an alkyl or alkoxy group having 1-18 carbon atoms, R* is an alkyl group having 4-12 carbon atoms including an asymmetric carbon atom, 1=1 or 2, and m=0 or 1.
Claims38
A mesomorphic compound represented by the following formula:
- ##STR30## wherein R.sub.1 is an alkyl group having 6-12 carbon atoms, R* is an alkyl group having 4-12 carbon atoms including an asymmetric carbon atom, 1 is 1 or 2, and m is 0 or 1.
A mesomorphic compound represented by the following formula:
- ##STR35## wherein R.sub.1 is an alkyl or alkoxy group having 6-12 carbon atoms, R* is an alkyl group having 4-12 carbon atoms including an asymmetric carbon atom, and m is 0 or 1.
A mesomorphic compound represented by the following formula:
- ##STR38## wherein R.sub.1 is an alkyl or alkoxy grup having 6-12 carbon atoms, R* is an alkyl group having 4-12 carbon atoms including an asymmetric carbon atom, and l is 1 or 2.
A chiral smectic liquid crystal composition comprising at least two compounds and containing at least one compound represented by the following formula:
- ##STR40## wherein R.sub.1 is an alkyl group having 6-12 carbon atoms, R* is an alkyl group having 4-12 carbon atoms including an symmetric carbon atom, l is 1 or 2, and m is 0 or 1.
A chiral smectic liquid crystal composition comprising at least two components and containing at least one compound represented by the following formula:
- ##STR41## wherein R.sub.1 is an alkyl or alkoxy group having 6-12 carbon atoms, R* is an alkyl group having 4-12 carbon atoms including an asymmetric carbon atom, and m is 0 or 1.
A chiral smectic liquid crystal composition comprising at least two components and containing at least one compound represented by the following formula:
- ##STR42## wherein R.sub.1 is an alkylor alkoxy group having 6-12 carbon atoms, R* is an alkyl group having 4-12 carbon atoms including an asymmetric carbon atom, and l is 1 or 2.
A liquid crystal device, comprising:
- a pair of substrates and a chiral smectic liquid crystal composition disposed between the substrates, said chiral smectic liquid crystal composition comprising at least two components and containing at least one compound represented by the following formula:
- ##STR43## wherein R.sub.1 is an alkyl or alkoxy grup having 6-12 carbon atoms, R* is an alkyl group having 4-12 carbon atoms including an asymmetric carbon atom, l is 1 or 2, and m is 0 or 1.
A liquid crystal device, comprising:
- a pair of substrates and a chiral smectic liquid crystal composition disposed between the substrates, said chiral smectic liquid crystal composition comprising at least two components and containing at least one compound represented by the following formula:
- ##STR44## wherein R.sub.1 is an alkyl or alkoxy group having 6-12 carbon atoms, R* is an alkyl grup having 4-12 carbon atoms including an asymmetric carbon atom, and m is 0 or 1.
A liquid crystal device, comprising:
- a pair of substrates and a chiral smectic liquid crystal composition disposed between the substrates, said chiral smectic liquid crystal composition comprising at least two components and containing at least one compound represented by the following formula:
- ##STR45## wherein R.sub.1 is an alkyl or alkoxy group having 6-12 carbon atoms, R* is an alkyl group having 4-12 carbon atoms including an asymmetric carbon atom, and l is 1 or 2.
Dependencies are inferred from the claim text.