Antiparallel aligned nematic liquid crystal device with positive

Details Antiparallel aligned nematic liquid crystal device with positive Antiparallel aligned nematic liquid crystal device with positive

1993-06-25

1996-02-27

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359102, G02F 11337, G02F 113

Patent

active

054953553

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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patent: 5172255 (1992-12-01), Brosig et al.
patent: 5189535 (1993-02-01), Mochizuki et al.
patent: 5250214 (1993-10-01), Kanemoto et al.
patent: 5298297 (1994-03-01), Takei

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