Liquid crystal display device with wide viewing angle characteri

Details Liquid crystal display device with wide viewing angle characteri Liquid crystal display device with wide viewing angle characteri

1996-06-06

1998-11-03

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349 44, 349111, 430 7, G02F 136, G02F 11333, G03F 900

Patent

active

058317015

ABSTRACT:
A liquid crystal display device comprising a black mask formed on one of a pair of substrates at least one of which is transparent, a group of electrodes formed on at least one of the pair of substrates, a liquid crystal layer comprising a liquid crystal composition substance having a dielectric anisotropy and held between the pair of substrates, an orientation control film formed between the liquid crystal layer and one of the substrates for orienting liquid crystal molecules of the liquid crystal composition substance in a predetermined direction, a polarizer laminated on at least one of the pair of substrates, and a driver for applying a drive voltage to the group of electrodes, wherein the group of electrodes has a structure that the electrodes are so arranged as to generate an electric field having a component predominantly in parallel with the interface between the orientation control film and the liquid crystal layer, the liquid crystal composition substance has a resistivity of not smaller than 10.sup.N .OMEGA..multidot.cm, and the black mask has a resistivity of not smaller than 10.sup.M .OMEGA..multidot.cm, wherein N and M are integers satisfying the relationships N.gtoreq.9 and M.gtoreq.6.

REFERENCES:
patent: 4308319 (1981-12-01), Michelotti et al.
patent: 5412494 (1995-05-01), Ishiwata et al.
patent: 5558927 (1996-09-01), Aruga et al.
patent: 5598285 (1997-01-01), Kondo et al.

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