Twisted nematic liquid crystal device

Details Twisted nematic liquid crystal device Twisted nematic liquid crystal device

1997-06-24

1999-03-09

Dang, Hung X.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349128, 349117, 349179, 349181, G02F 11337, G02F 11335

Patent

active

058807985

ABSTRACT:
A twisted nematic liquid crystal device has a liquid crystal layer between a pair of alignment layers. Glass plates with electrodes are disposed on opposite sides of the layers. The alignment layers have their alignment directions disposed mutually perpendicular and at .+-.45.degree. with respect to adjacent linear polarizers. The pretilt angle of liquid crystal molecules in a surface region of the layer adjacent the alignment layer is different to that of liquid crystal molecules in a surface region of the layer adjacent the alignment layer.

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Matsumoto et al., "Field-Induced Deformation Of Hybrid-Aligned Nematic Liquid Crystals: New Multicolor Liquid Crystal Display", Journal of Applied Physics, vol. 47, No. 9 (Sep. 1976), pp. 3842-3845.
Kahn, "Ir-Laser-Addressed Thermo-Optic Smectic Liquid-Crystal Storage Displays", Applied Physics Letters, vol. 22, No. 3 (Feb. 1, 1973), pp. 111-113.
Berezin et al., "Electrooptic Switching In Oriented Liquid-Crystal Films", Sov. J. Quant. Electron, vol. 3, No. 1 (Jul.-Aug. 1973), pp. 78-79.

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