Liquid crystal cells – elements and systems – Cell containing liquid crystal of specific composition – In cholesteric phase
Patent
1998-10-29
1999-12-07
Sikes, William L.
Liquid crystal cells, elements and systems
Cell containing liquid crystal of specific composition
In cholesteric phase
349 98, 349175, C09K 1902, G02F 11335
Patent
active
059992433
ABSTRACT:
A liquid crystal element which comprises an oriented liquid crystal polymer and with which a liquid crystal display less apt to have display unevenness in a wide viewing range including the front and slant directions can be fabricated; and an optical element and a polarizing element each containing the liquid crystal element. The liquid crystal element comprises either a layer of an oriented liquid crystal polymer or a substrate and formed thereon the layer of an oriented liquid crystal polymer, wherein the liquid crystal polymer layer has an average in-plane haze of 10% or higher and a dispersion of the in-plane haze H (%) within the range represented by the relationship a-.sqroot.(10a).ltoreq.H.ltoreq.a+.sqroot.(10a) wherein "a" is the average haze (%), or has an average in-plane haze lower than 10% and a dispersion of the in-plane haze H (%) within the range represented by the relationship 0.ltoreq.H.ltoreq.b+.sqroot.(10b) wherein "b" is the average haze (%). The optical element comprises a multilayer structure comprising the liquid crystal element and a retardation film laminated thereon. The polarizing element comprises a multilayer structure comprising the liquid crystal or optical element and a polarizing plate laminated thereon.
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Kameyama Tadayuki
Mihara Hisashi
Motomura Hironori
Takahashi Naoki
Chowdhury Tarifur R.
Nitto Denko Corporation
Sikes William L.
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