The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2010
Filed:
Apr. 05, 2007
Miki Shiraogawa, Osaka, JP;
Junichi Inagaki, Osaka, JP;
Miki Shiraogawa, Osaka, JP;
Junichi Inagaki, Osaka, JP;
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Abstract
There is provided a liquid crystal display apparatus having a high contrast ratio in an oblique direction and small color change depending upon a viewing angle. A liquid crystal panel according to an embodiment of the present invention includes: a liquid crystal cell; a first polarizer placed on one side of the liquid crystal cell; a second polarizer placed on the other side of the liquid crystal cell; a first O-plate placed between the liquid crystal cell and the first polarizer; a second O-plate placed between the liquid crystal cell and the second polarizer; a first biaxial retardation layer placed between the liquid crystal cell and the first O-plate; and a second biaxial retardation layer placed between the liquid crystal cell and the second O-plate. The first and the second O-plates are solidified layers or cured layers of a bar-shaped liquid crystal compound arranged in a hybrid alignment; and a tilt angle (θ) of the bar-shaped liquid crystal compound on the polarizer side is larger than a tilt angle (θ) thereof on the biaxial retardation layer side.