Liquid crystal display element

Abstract

Abstract PURPOSE: To prepare the titled DC-driving element having high electrical conductivity necessary for dynamic scattering, and excellent chemical and electrical stability, by using a liquid crystal composition obtained by adding two kinds of specific compounds as electrical conductivity imparting agents to a cyclohexanecarboxylic acid ester compound. CONSTITUTION: A DC-driving liquid crystal display element based on the dynamic scattering effect, is obtained by using a liquid crystal composition obtained by adding di-n-butyl ferrocene and tetracyanoquinodimethane as agents for imparting electrical conductivity, to a cyclohexanecarboxylic acid ester compound, e.g. 4-trans- alkyl cyclohexanecarboxylate of formula (R 1 is propyl, butyl, pentyl, etc.; R 2 is methoxy, ethoxy, butoxy, etc.), etc. The amount of the n-butyl ferrocene and tetracyanoquinodimethane is e.g. 0.5wt%, each. EFFECT: The additives have excellent compatibility with cyclohexanecarboxylic acid esters, and form a homogeneous system. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Kiyoshi Mizunoya
• 👤 Shoichi Matsumoto
• 👤 Hirosuke Wada
• 👤 Masahiro Kawamoto
• 👤 Hitoshi Tomii

Bibliographic Details