Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-02-15
2009-10-13
Nelms, David (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S096000
Reexamination Certificate
active
07602462
ABSTRACT:
It is the object of the present invention to provide a polarizing element capable of increasing a contrast ratio in an oblique direction and reducing a color shift in an oblique direction of a liquid crystal display apparatus. A polarizing element according to the present invention includes a polarizer, a negative C plate, a positive A plate, and a positive C plate each arranged on one side of the polarizer. The positive A plate is arranged between the polarizer and the positive C plate such that a slow axis of the positive A plate is substantially perpendicular to an absorption axis of the polarizer. The positive C plate has RthPC[590] of −60 nm or less.
REFERENCES:
patent: 7006184 (2006-02-01), Mi et al.
patent: 7508474 (2009-03-01), Kashima
patent: 2003/0193637 (2003-10-01), Mi et al.
patent: 2004/0156001 (2004-08-01), Moriya
patent: 2004/0233362 (2004-11-01), Kashima
patent: 2005/0062917 (2005-03-01), Kashima
patent: 11-133408 (1999-05-01), None
patent: 2004-38148 (2004-02-01), None
patent: 2004-240181 (2004-08-01), None
patent: WO 2004/019085 (2004-03-01), None
Kobayashi Kentarou
Koishi Naoki
Ooe Naoto
Tomonaga Masatoshi
Yano Shuuji
Nelms David
Nitto Denko Corporation
Vu Phu
Westerman, Hattori, Daniels & Adrian , LLP.
LandOfFree
Polarizing element, liquid crystal panel, liquid crystal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polarizing element, liquid crystal panel, liquid crystal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarizing element, liquid crystal panel, liquid crystal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4137312