Optical compensation sheet and liquid crystal display device

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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C349S117000, C349S118000

Reexamination Certificate

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07981489

ABSTRACT:
An optical compensation sheet, which contains a cellulose acylate film that contains 1 to 20 parts by mass of a retardation controlling agent, to 100 parts by mass of a cellulose acylate, wherein the retardation controlling agent comprises at least two compounds different in Re/Rth ratios each other; and a liquid crystal display device, which contains the optical compensation sheet.

REFERENCES:
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patent: 7060333 (2006-06-01), Takeuchi et al.
patent: 7105212 (2006-09-01), Ito
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patent: 7504139 (2009-03-01), Kawanishi et al.
patent: 7586562 (2009-09-01), Ito
patent: 7630031 (2009-12-01), Ito
patent: 2004/0096594 (2004-05-01), Takeuchi et al.
patent: 2005/0106334 (2005-05-01), Kubo et al.
patent: 0 911 656 (1999-04-01), None
patent: 2000-275434 (2000-10-01), None
patent: 2001-116926 (2001-04-01), None
patent: 2002-71954 (2002-03-01), None
patent: WO 00/65384 (2000-11-01), None
patent: WO 03/018672 (2003-03-01), None
JPO Website Machine English Translation of JP2004-050516, Kawanishi et al., Feb. 19, 2004.
JPO Website Machine English Translation of JP2000-275434, Matsuoka et al., Oct. 6, 2000.
International Search Report, Japan Patent Office, May 26, 2006.
Official Action dated Feb. 1, 2011, issued by the Japanese Patent Office in corresponding Japanese Patent Application No. 2006-027508, and English language translation of the Official Action.

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