Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1994-09-16
1997-04-08
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349 70, 349102, 349117, G02F 11335
Patent
active
056193564
ABSTRACT:
A reflective liquid crystal display device including: a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; electrodes for applying a voltage to the liquid crystal layer; a polarizing plate provided on a side of the liquid crystal layer on which the first substrate is provided; a reflective member provided on a side of the liquid crystal layer on which the second substrate is provided; and an optical compensation member provided between the polarizing plate and the liquid crystal layer, wherein the liquid crystal layer has a twist angle in a range of 220.degree. to 260.degree. and a retardation value of 0.5 .mu.m to 0.8 .mu.m, the optical compensation member has a retardation value in a range of 0.15 .mu.m to 0.38 .mu.m, and an angle .beta. which is formed between a polarization axis direction of the polarizing plate and an alignment direction of liquid crystal molecules in the liquid crystal layer on a side of the polarizing plate, and an angle .gamma. which is formed between an axis direction of a slower optical axis of the optical compensation member and an alignment direction of the liquid crystal molecules, satisfy one of following expressions (A) and (B) when m is an integer:
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Ichiro Fukuda
Kozo Nakamura
Seiichi Mitsui
Conlin David G.
Dudek James
Michaelis Brian L.
Sharp Kabushiki Kaisha
Sikes William L.
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