Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – Alignment layer of specified composition
Reexamination Certificate
2002-02-22
2008-10-28
Kruer, Kevin R. (Department: 1794)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
Alignment layer of specified composition
C428S001500, C428S001550, C428S001600
Reexamination Certificate
active
07442420
ABSTRACT:
A UV-curable resin composition for alignment film and an alignment film which is prepared by curing the composition with UV rays. The migration of a material which is present in a polymer film and capable of affecting the optical properties of a liquid crystalline compound layer to the liquid crystalline compound layer is controlled or blocked. The composition comprises at least one (meth)acrylate compound having one or more polar groups and one or more (meth)acryloyl groups in the molecule and a photoinitiator. A protective layer is inserted between a polymer film and a liquid crystalline compound layer for controlling or blocking the migration of the material which is present in the polymer film and capable of affecting the optical properties of the liquid crystalline compound layer.
REFERENCES:
patent: 5499128 (1996-03-01), Hasegawa et al.
patent: 5583679 (1996-12-01), Ito et al.
patent: 5631051 (1997-05-01), Ito
patent: 5820783 (1998-10-01), Siemensmeyer et al.
patent: 5833880 (1998-11-01), Siemensmeyer et al.
patent: 6013339 (2000-01-01), Yamada et al.
patent: 6224788 (2001-05-01), Ogawa et al.
patent: 6704082 (2004-03-01), Tomioka et al.
patent: 2001/0050741 (2001-12-01), Hokazono et al.
patent: 0 565 044 (1993-10-01), None
patent: 0 666 290 (1995-09-01), None
patent: 0 867 469 (1998-09-01), None
patent: 0911656 (1998-10-01), None
patent: 60188926 (1985-09-01), None
patent: 60188926 (1985-09-01), None
patent: 5-95034 (1993-04-01), None
patent: 8-50204 (1996-02-01), None
patent: 8-50206 (1996-02-01), None
patent: 8-50270 (1996-02-01), None
patent: 8-95030 (1996-04-01), None
patent: 8-338913 (1996-12-01), None
patent: 2001-48904 (2001-02-01), None
patent: 2001-54936 (2001-02-01), None
patent: 2000-0021807 (2000-04-01), None
patent: 10-0277768 (2001-01-01), None
Korean communication dated Sep. 21, 2007.
Korean communication dated Sep. 21, 2007.
European communication dated Feb. 25, 2008.
European communication dated Feb. 29, 2008.
Takahashi Syoushi
Tanaka Kouichi
Yoshioka Kenichiro
Kruer Kevin R.
Nields & Lemack
Nippon Kayaku Kabushiki Kaisha
Polatechno Co., Ltd.
LandOfFree
Retardation films comprising a UV-curable alignment film and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Retardation films comprising a UV-curable alignment film and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retardation films comprising a UV-curable alignment film and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3989900