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:
Nov. 13, 2012
Filed:
Feb. 10, 2009
Akiyoshi Fujii, Osaka, JP;
Kyohko Azumada, Osaka, JP;
Akiyoshi Fujii, Osaka, JP;
Kyohko Azumada, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Abstract
An illuminator according to the present invention includes a backlight () for emitting light containing first and second polarization components having polarization directions which are orthogonal to each other; and a selective reflection polarizer () having a reflectance for the first polarization component which is higher than a transmittance for the first polarization component, and having a transmittance for the second polarization component which is higher than a reflectance for the second polarization component. The selective reflection polarizer () includes a transparent substrate () and a plurality of metal wires () arrayed on the transparent substrate (). The ratio of a width of the metal wires () to a pitch of the metal wires () is greater than 30% and equal to or less than 42%, and the backlight () has a reflectance of 0.6 or more.