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:
Dec. 05, 2008
Hiroaki Yanai, Shiojiri, JP;
Hiroaki Yanai, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A projector includes: a lighting device which emits illumination light; a liquid crystal panel which modulates the illumination light emitted from the lighting device according to image information; a projection system which projects light modulated by the liquid crystal panel; a polarization plate which is disposed at least either on the light incident side or the light exit side of the liquid crystal panel and has at least a polarization layer; a liquid crystal panel side light-transmissive substrate affixed to the liquid crystal panel side surface of the polarization plate and made of inorganic material; and an opposite side light-transmissive substrate affixed to the surface of the polarization plate on the side opposite to the liquid crystal panel side surface of the polarization plate. The thickness of the liquid crystal panel side light-transmissive substrate is smaller than the thickness of the opposite side light-transmissive substrate.