Liquid crystal display device having particular twist angle, .in

Details Liquid crystal display device having particular twist angle, .in Liquid crystal display device having particular twist angle, .in

1997-11-26

1998-12-29

Sikes, William L.

Liquid crystal cells, elements and systems

With specified nonchemical characteristic of liquid crystal...

Within nematic phase

349181, 349 96, C09K 1902, G02F 11335

Patent

active

058546669

ABSTRACT:
A TN-mode, normally-white format liquid crystal display device having high contrast and exceptional display characteristics. The angle of gradation inversion is increased and a straight-on contrast of more than 100 is obtained by setting the twist angle to 78.degree.-90.degree., preferably 84.degree.-90.degree., .DELTA..sub.n d to 0.3-0.4 .mu.m, preferably 0.35-0.38 .mu.m, and .DELTA..sub..epsilon. to at least 6.2.

REFERENCES:
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patent: 5124825 (1992-06-01), Asano et al.
patent: 5387369 (1995-02-01), Weber et al.
patent: 5520846 (1996-05-01), Plach et al.
patent: 5598285 (1997-01-01), Kondo et al.
patent: 5696570 (1997-12-01), Plach et al.

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