Optical film and optical compensatory film, polarizing plate...

Details Optical film and optical compensatory film, polarizing plate... Optical film and optical compensatory film, polarizing plate...

2006-08-16

2009-06-02

Hendricks, Keith D (Department: 1794)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With viewing layer of specified composition

C428S412000, C349S117000, C349S118000

Reexamination Certificate

active

07541074

ABSTRACT:
An optical film is provided and contains at least one of a polycarbonate copolymer and a blend containing the polycarbonate copolymer. The polycarbonate copolymer contains specific repeating units. The optical film satisfies the following formulae (1) to (4).in-line-formulae description="In-line Formulae" end="lead"?0.1<Re(450)/Re(550)<0.95  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?1.03<Re(650)/Re(550)<1.93  (2)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0.4<(Re(450)/Rth(450))/(Re(550)/Rth(550))<0.95  (3)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?1.05<(Re(650)/Rth(650))/(Re(550)/Rth(550))<1.90  (4)in-line-formulae description="In-line Formulae" end="tail"?

REFERENCES:
patent: 6565974 (2003-05-01), Uchiyama et al.
patent: 6881453 (2005-04-01), Kido et al.
patent: 7052747 (2006-05-01), Nishikouji et al.
patent: 7153547 (2006-12-01), Nishikouji et al.
patent: 7223451 (2007-05-01), Uchiyama et al.
patent: RE39753 (2007-07-01), Uchiyama et al.
patent: 2004/0233363 (2004-11-01), Murayama et al.
patent: 2004/0239852 (2004-12-01), Ono et al.
patent: 62-210423 (1987-09-01), None
patent: 2587398 (1996-12-01), None
patent: 3027805 (2000-01-01), None
patent: 3330574 (2002-07-01), None

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