Antiferroelectric liquid crystal composition

Details Antiferroelectric liquid crystal composition Antiferroelectric liquid crystal composition

1997-07-25

2000-10-10

Kelly, C. H.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229964, 25229967, C09K 1912, C09K 1920

Patent

active

06129859&

ABSTRACT:
The present invention discloses an antiferroelectric liquid crystal composition respectively containing the compounds of formula (1), (2), (3) or (4), wherein R.sub.1, R.sub.3, R.sub.5 and R.sub.7 are alkyl groups having 7-13 carbon atoms, R.sub.2, R.sub.4, R.sub.6 and R.sub.8 are alkyl groups having 4-8 carbon atoms, any of the four hydrogen atoms in each of the phenyl groups of the formulas may be substituted with a halogen atom such as F, Cl or Br, or a CH.sub.3 group, and X indicates --O-- or --. ##STR1##

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