发明名称 |
Laminated phase retarder, polarizing member and liquid-crystal display device |
摘要 |
A laminated phase retarder having: a laminate of a retardation layer A made of a thermoplastic resin exhibiting positive birefringent characteristic and a retardation layer B constituted by an oriented solidified layer of cholesteric liquid crystal exhibiting a selective reflection wavelength range not larger than 350 nm; wherein Re of the laminate is not smaller than 10 nm and Rth-Re of the laminate is not smaller than 50 nm when Re and Rth are given by Re=(nx-ny)xd and Rth=(nx-nz)xd in which nx and ny are in-plane main refractive indices, nz is a thicknesswise refractive index, and <highlight><uline>d</uline></highlight> is a layer thickness. A polarizing member having: a laminate of a laminated phase retarder defined above; and a polarizer. A liquid-crystal display device having: a liquid-crystal cell; and a laminated phase retarder or a polarizing member defined above and disposed on at least one of opposite surfaces of the liquid-crystal cell.
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申请公布号 |
US2003086033(A1) |
申请公布日期 |
2003.05.08 |
申请号 |
US20020265142 |
申请日期 |
2002.10.07 |
申请人 |
NITTO DENKO CORPORATION |
发明人 |
SASAKI SHINICHI;YAMAOKA TAKASHI;MURAKAMI NAO;YOSHIMI HIROYUKI |
分类号 |
G02B5/30;C08J7/04;G02F1/13363;G02F1/139;(IPC1-7):G02F1/133 |
主分类号 |
G02B5/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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