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:
Feb. 10, 2015
Filed:
Nov. 26, 2010
Akinori Nishimura, Ibaraki, JP;
Hiroyuki Takemoto, Ibaraki, JP;
Takehito Fuchida, Ibaraki, JP;
Minoru Miyatake, Ibaraki, JP;
Shunsuke Shutou, Ibaraki, JP;
Akinori Nishimura, Ibaraki, JP;
Hiroyuki Takemoto, Ibaraki, JP;
Takehito Fuchida, Ibaraki, JP;
Minoru Miyatake, Ibaraki, JP;
Shunsuke Shutou, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki-shi, JP;
Abstract
A liquid crystal display apparatus according to an embodiment of the invention includes: a liquid crystal cell; polarizing plates placed on both sides of the liquid crystal cell; a light diffusing element provided outside of the polarizing plate on a viewer side; and a backlight unit provided outside of the polarizing plate on an opposite side of the viewer side. The backlight unit includes a collimated light source device that emits collimated light having a brightness half-value angle of 3° to 35° toward the liquid crystal cell, and a ratio Fw(BL)/Fw(FD) between a diffused light half-value angle Fw(FD) of the light diffusing element and the brightness half-value angle Fw(BL) of the collimated light is 0.5 or less.