Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

1984-08-27

1987-03-31

Griffin, Donald A.

G02F 113

Patent

active

046538615

ABSTRACT:
A liquid crystal display device wherein a nematic liquid crystal having a positive dielectric anisotropy and added with a chiral material is sealed between a pair of upper and lower substrates so as to constitute a helical structure twisted within a range between 160.degree. and 200.degree. along a direction of thickness thereof, and polarizing axes or absorption axes of a pair of polarizing plates disposed on the upper and lower substrates are inclined by a predetermined angle with respect to major axes of liquid crystal molecules adjacent to the upper and lower substrates, respectively.

REFERENCES:
Journal of Applied Physics, vol. 48, No. 4, Apr. 1977, pp. 1426 to 1431.
Optical Characteristics of Twisted Nematic Liquid Crystals: Application to the Improvement of the Scanning Capability in Matrix Displays.

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