Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

1996-01-22

1997-05-13

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349124, 349106, G02F 11337, G02F 11335

Patent

active

056297866

ABSTRACT:
A liquid crystal display device has a liquid crystal layer having super twisted nematic liquid crystal with a twist angle of 260.degree., the liquid crystal layer being sandwiched between a first substrate and a second substrate. A color filter is formed on the second substrate. The first substrate is orientation-processed so that pretilt angles of the liquid crystal to the first substrate are 5.5.degree.. The second substrate is orientation-processed so that pretilt angles of the liquid crystal to the second substrate are 3.0.degree.. Therefore, it is possible to easily reduce occurrence rate of inadequate display and, at the same time, to maintain beneficial characteristics of a liquid crystal display device with a twist angle of 250.degree. or more, i.e., a good temperature characteristic, a small contrast change against a temperature change, and good quality display.

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patent: 5214523 (1993-05-01), Nito et al.
patent: 5438421 (1995-08-01), Sugawara et al.
patent: 5446569 (1995-08-01), Iwai et al.
patent: 5473455 (1995-12-01), Koike et al.
patent: 5540997 (1996-07-01), Perettle et al.
patent: 5552908 (1996-09-01), Kim et al.

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