Kanto Kagaku Kabushiki Kaisha

Sharp Kabushiki Kaisha Corporation

Kazuhiko Tsuchiya

Mitsuhiro Koden

Kenji Suzuki

Tsunenori Fujii

Atsushi Sugiura

Makoto Shiomi

Fumiaki Funada

Tomoaki Kuratate

Aya Miyazaki

Akira Sakaigawa

Hiromi Inoue

A liquid crystal compound of the present invention is represented by the following general Formula I: ##STR1## wherein R.sub.1 and R.sub.2 are independently a linear or branched alkyl group or alkoxy group having 1 to 14 carbon atoms, provided that at least one of R.sub.1 and R.sub.2 is an alkyl group; --Y-- is a group represented by the following Formula (II) or (III); and X.sub.1, X.sub.2, X.sub.3, and X.sub.4 are independently a hydrogen atom or a fluorine atom: ##STR2##

Liquid crystal compound, liquid crystal composition, and liquid crystal

A new biphenyl compound which is chemically stable and possesses practically excellent properties as a component for preparing ferroelectric smetic liquid crystalline compositions as well as a new liquid crystalline composition containing this compound.

Biphenyl compound

A ferroelectric liquid crystal composition comprising a specific fluorophenyl compound (I) and a specific pyrimidine compound (II) and optionally a specific benzoate compound (III), which exhibits a high-speed response in room temperature and is useful for liquid crystal display devices of large capacity.

Liquid crystal composition and liquid crystal device containing the same

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Soka, Japan

Kazuhiko Tsuchiya