Hitachi, Ltd.

Nitto-denko Corporation

Tadao Nakada

Akio Mukoh

Hisao Yokokura

Teruo Kitamura

Katsumi Kondo

Susumu Era

Kishiro Iwasaki

Yasuhiko Kando

Yasuo Imanishi

Yasuo Fujimura

Yasuo Hanawa

Noboru Masutani

Isoji Sakai

Tsunetaka Matsumoto

A liquid crystal display cell, wherein orientation films are made of an organic polymer such as polyimide, polyamide, liquid crystal polymer having one or more mesogen groups in a main chain or side chain and produced by spreading an organic polymer solution on a water surface, is excellent in memory properties and contrast and generates no static electricity, no short circuit between electrodes and no breaking of electrodes.

Liquid crystal display cell and process for producing the same

A ferroelectric liquid crystal device which comprises at least one pair of counterposed substrates, a ferroelectric liquid crystal material provided between the substrates, means for applying an electric field to the liquid crystal material and provided at the substrates, an alignment-controlling layer provided on the surface on the liquid crystal material side of each of the substrates, and a sealing member at the peripheral edges of the substrates, the alignment-controlling layer being a film of an organic polymer whose .beta. dispersion temperature is higher than the curing temperature of a sealant for the sealing member, preferably at least 200.degree. C., has a good alignment state of ferroelectric liquid crystal molecules achieved by cooling alone without any application of an electric field and has good display qualities such as a high contrast.

Ferroelectric liquid crystal device

Growing community of inventors

Katsuta, Japan

Tadao Nakada