Super twisted nematic liquid crystal display device having the s

Details Super twisted nematic liquid crystal display device having the s Super twisted nematic liquid crystal display device having the s

1990-03-05

1991-09-03

Miller, Stanley D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

G02F 113

Patent

active

050447335

ABSTRACT:
A super twisted nematic type liquid crystal display device includes two of substrates, at least one of which is made of a plastic film, transparent electrode films disposed on each inner face of the two of the substrates, a plurality of spacers dispersed between the two of the substrates for maintaining the two of the substrates at a predetermined space and a liquid crystal enclosed between said substrates. The spacers are of spherical grains, a standard deviation of a distribution with respect to diameters of the spherical grains is not more than 3.5% of an average diameter of the spherical grains, a dispersion quantity of the spherical grains between said substrates is 100 to 200 grains/mm.sup.2, and the liquid crystal has a twisted angle of 180.degree. to 270.degree. with respect to liquid crystal molecules thereof.

REFERENCES:
patent: 4705360 (1987-11-01), Funada et al.
patent: 4804254 (1989-02-01), Doll et al.
patent: 4837058 (1989-06-01), Aizawa et al.

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