Retardation plate, process for producing the same, and...

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With viewing layer of specified composition

Reexamination Certificate

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C428S001100, C349S117000, C349S118000, C252S299010

Reexamination Certificate

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07135211

ABSTRACT:
A retardation plate characterized by being obtained by laminating a homeotropic liquid-crystal film formed from a homeotropic liquid-crystal polymer of the side chain type or from a homeotropic liquid-crystalline composition comprising the side chain type liquid-crystal polymer and a photopolymerizable liquid-crystal compound to a stretched film having a retardation function. In the retardation plate, the retardation in the thickness direction can be regulated to a value in a wide range.

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JPO Website Machine English Translation of JP09003454, Kawada, Jan. 1997.
First Office Action issued by State Intellectual Property Office of People's Republic of China, Aug. 26, 2005.

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