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:
Sep. 25, 2012
Filed:
Nov. 18, 2008
Masatoshi Tomonaga, Ibaraki, JP;
Hiroyuki Takemoto, Ibaraki, JP;
Masatoshi Tomonaga, Ibaraki, JP;
Hiroyuki Takemoto, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Abstract
The invention provides a liquid crystal panel and a liquid crystal display device, which has suppressed light leakage at an angle of 45 degrees to an absorption axis of a polarizing plate, a low black-state brightness in an oblique direction and an improved contrast. The liquid crystal panel comprises a liquid crystal cell including a liquid crystal layer containing liquid crystal molecules that is oriented in homogeneous alignment when no electric field is applied thereto, a first polarizer placed on one side of the liquid crystal cell, a second polarizer placed on another side of the liquid crystal cell, a first anisotropic optical element placed between the liquid crystal cell and the first polarizer and satisfying nx>ny>nz, and a second anisotropic optical element placed between the first anisotropic optical element and the liquid crystal cell and satisfying nz>nx>ny, wherein the slow axis of the first anisotropic optical element is parallel to the slow axis of the second anisotropic optical element.