Retardation film and process for producing the same

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

Reexamination Certificate

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C428S001300, C428S001310

Reexamination Certificate

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10782958

ABSTRACT:
The invention relates primarily to a retardation film and a process for producing the retardation film, wherein a layer formed of a mixture of a photosensitive polymer and a low molecular weight compound is irradiated with linear polarized ultraviolet ray, ultraviolet ray including a perfectly polarized light component and a non-polarized light component, or a non-polarized ultraviolet ray to orient molecules thereby developing a retardation and the direction of the optical axis arbitrarily in the layer formed of a mixture.

REFERENCES:
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patent: 5523127 (1996-06-01), Ohnishi et al.
patent: 5572291 (1996-11-01), Moriguchi et al.
patent: 5795629 (1998-08-01), Harada et al.
patent: 6061113 (2000-05-01), Kawata
patent: 6423385 (2002-07-01), Kagawa et al.
patent: 6743487 (2004-06-01), Sakai et al.
patent: 07138308 (1995-05-01), None
English translation by computer for JP 07-138308, http://www4.ipdl.ncipi.go.jp/Tokujitu/PAJdetail.ipdl?N0000=60&N0120=01&N2001=2&N3001=H07-138308.
Patent Abstracts of Japan, Publication No. 10-278123, published Oct. 20, 1998.
Patent Abstracts of Japan, Publication No. 08-015681, published Jan. 19, 1996.
Patent Abstracts of Japan, Publication No. 07-287120, published Oct. 31, 1995.
Patent Abstracts of Japan, Publication No. 07-138308, published May 30, 1995.
Machine Translation of JP 09-179102, Yamamoto, Jul. 1997, from JPO website.
Machine Translation of JP 2001-117102, Sakai et al., Apr. 2001, from JPO website.

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