Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-09-12
2009-12-15
Caley, Michael H (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S118000, C349S119000
Reexamination Certificate
active
07633584
ABSTRACT:
An optical compensation plate provided in a liquid crystal cell in which a distance of a liquid crystal layer is held through a spacer, in which the optical compensation plate is formed in such a way that a layer thickness becomes thin toward a central portion from an end portion. As the spacer, a spherical fine particle is employed. As a liquid crystal cell, a VA mode liquid crystal cell is employed. Since the optical compensation plate of the present invention has a thinner layer thickness in the central portion in response to a decrease in a cell gap in the central region of the liquid crystal cell, light leakage in the central region of the liquid crystal layer can be prevented well.
REFERENCES:
patent: 3597043 (1971-08-01), Dreyer
patent: 5150234 (1992-09-01), Takahashi et al.
patent: 5539545 (1996-07-01), Shimizu et al.
patent: 6340230 (2002-01-01), Bryars et al.
patent: 7054049 (2006-05-01), Murakami et al.
patent: 7128952 (2006-10-01), Murakami et al.
patent: 2005/0030456 (2005-02-01), Murakami et al.
patent: 2006/0209233 (2006-09-01), Kawashima et al.
patent: 1623107 (2005-06-01), None
patent: 2000-267076 (2000-09-01), None
patent: 2004-46065 (2004-02-01), None
patent: 2006-072340 (2006-03-01), None
patent: 2003-47172 (2003-06-01), None
patent: 2005/015277 (2005-02-01), None
International Search Report of PCT/JP2006/318013, date of mailing Dec. 19, 2006.
Korean Office Action dated Feb. 6, 2009 in corresponding Korean Patent Application No. 9-5-2009-005636892.
Office Action dated Jul. 24, 2009 in corresponding Chinese Patent Application 2006800347824.
Abe Hideo
Umemoto Seiji
Caley Michael H
Nitto Denko Corporation
Westerman Hattori Daniels & Adrian LLP
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