Antiparallel aligned nematic liquid crystal device with positive dielectric anisotropy
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United States of America Patent
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Feb 27, 1996
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app pub date -
Jun 25, 1993
filing date -
Jun 30, 1992
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Abstract
A liquid-crystal electro-optical device is offered which can operate at high speeds and easily oriented. The value of the surface tension of liquid crystal-orienting layers is 40 dynes/cm or more, and these layers are rubbed in antiparallel directions to each other. This reduces the pretilt angle of the molecules of a nematic liquid crystal sandwiched between two substrates. The anisotropy of the dielectric constant of the nematic liquid crystal is positive. The interval between the substrates is 5 .mu.m or less.
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