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Patent Searching and Data


Title:
LIQUID CRYSTAL ELEMENT
Document Type and Number:
Japanese Patent JPS63257724
Kind Code:
A
Abstract:

PURPOSE: To cause uniform orientation of liquid crystal over a large area of a liquid crystal layer by providing a high molecular liquid crystal layer as an orientation layer to between an electrode and the liquid crystal layer.

CONSTITUTION: An orientation layer is formed by providing a specified high molecular liquid crystal layer 8 to between ITO electrodes 3, 4 on transparent glass substrates 1, 2 and a liquid crystal layer 9. The orientation layer is capable of orienting liquid crystal uniaxially by rubbing. Chiral smectic liquid crystals are used for the liquid crystals 9. The orientation layer may be formed as a successively laminated body of an inorg. oxide film or an org. high molecular film formed by oblique deposition or by rubbing, and thin films comprising high molecular liquid crystals and the high molecular liquid crystal layer may be oriented by the effect of an adjacent inorg. oxide film or org. high molecular film. By this constitution, uniform orientation over a large area of a liquid crystal layer is realized, and a liquid crystal element having a large contrast ratio during driving, and stable storage characteristic is obtd.


Inventors:
SAKON HIROTA
ONUMA TERUYUKI
Application Number:
JP9188287A
Publication Date:
October 25, 1988
Filing Date:
April 16, 1987
Export Citation:
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Assignee:
RICOH KK
International Classes:
G02F1/1337; G02F1/133; (IPC1-7): G02F1/133
Attorney, Agent or Firm:
Hidetake Komatsu