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:
Jun. 28, 2011
Filed:
Nov. 15, 2007
Kentarou Takeda, Osaka, JP;
Junichi Nagase, Osaka, JP;
Kentarou Takeda, Osaka, JP;
Junichi Nagase, Osaka, JP;
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Abstract
A liquid crystal panel includes a liquid crystal cell having a liquid crystal layer containing liquid crystal molecules that are vertically aligned in an absence of a voltage; a first optical compensation layer having a relationship of Nz =1 to 2.5 and a relationship of Re(380) <Re(550) <Re(780); a second optical compensation layer having a relationship of nx =ny >nz and a relationship of Re(380) >Re(550) >Re(780); a first polarizer; a third optical compensation layer having a relationship of Nz =1 to 2.5 and a relationship of Re(380) <Re(550) <Re(780); a fourth optical compensation layer having a relationship of nx =ny >nz and a relationship of Re(380) >Re(550) >Re(780); and a second polarizer wherein: the first optical compensation layer, the second optical compensation layer, and the first polarizer are placed on one side of the liquid crystal cell; and the third optical compensation layer, the fourth optical compensation layer, and the second polarizer are placed on the other side of the liquid crystal cell.