NEW MATERIAL:A ferroelectric liquid crystal compound using an optically active alkynyl alcohol expressed by formula I (C* is asymmetric carbon; p is 0 or 1; 1 is 0-4; A is achiral group expressed by formula II to formula VII, etc.; R is 1-20C alkyl, alkoxy, acyl or acyloxy; Z is H, OH, CN or halogen; n is 0 or 1) as an optically active position.
EXAMPLE: 2-{4 [2-(3-Butynyl)oxy]phenyl}-5-octylpyridine.
USE: A ferroelectric liquid crystal capable of providing a liquid crystal display element enhanced in response rate because of low viscosity and large spontaneous polarization and having SC phase or SH phase forming temperature closer to ambient temperature, compared with conventional liquid crystal and having good light stability.
PREPARATION: An optically active compound expressed by formula VIII or reactive derivative thereof is reacted with a compound expressed by the formula A-OH or reactive derivative thereof to provide the optically active compound expressed by formula I.
| JPS59187317 | MANUFACTURE OF LIQUID-CRYSTAL DISPLAY ELEMENT |
| JPH0636020 | [Name of device] Display device |
AMANO MASAKI
TODA HARUHIKO
