Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1998-02-17
2000-07-04
Dudek, James A.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349117, 349 75, 349123, 349134, G02F 11335, G02F 11347, G02F 11337, G02F 1141
Patent
active
060846518
ABSTRACT:
A liquid crystal display device of the present invention includes a liquid crystal display element composed of a pair of transparent substrates, each provided with a transparent electrode layer and an alignment layer on a surface facing the other substrate, and a liquid crystal layer enclosed therebetween, a pair of polarizers provided on both sides of the liquid crystal display element, and at least one optical phase difference plate having inclined refractive index ellipsoid, positioned between the liquid crystal display element and the pair of polarizers, wherein the alignment layer aligns in different directions divided liquid crystal layers which have been prepared by dividing the liquid crystal layer at different ratios with respect to each pixel, and the liquid crystal layer made of a liquid crystal material whose change in refractive index anisotropy .DELTA.n in accordance with a wavelength of light is set in a range which does not allow viewing-angle-dependant coloration to generate on a liquid crystal screen. This (1) eliminates a phase difference generated in the liquid crystal display element in accordance with viewing angles and (2) effectively prevents a coloration phenomenon on the liquid crystal screen.
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Inoue Iichiro
Mizusima Shigeaki
Yamahara Motohiro
Chowdhury Tarifor R.
Conlin David G.
Dudek James A.
Sharp Kabushiki Kaisha
Tucker David A.
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