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:
Apr. 29, 2003
Filed:
Jul. 25, 2000
Sony Corporation, Tokyo, JP;
Abstract
A liquid crystal projector providing an image having a high luminance and excellent contrast, including a polarization plate which is arranged at an incident side of a liquid crystal panel and transmits a first polarized beam therethrough, a polarization plate which is arranged at an exit side of the liquid crystal panel and transmits an optically modulated second polarized beam therethrough and outputs the same to a projection lens, and a phase difference film having one of a phase delay axis or a phase forward axis which is orthogonal to the polarization axis of the polarization plate and arranged inclined at a predetermined angle about an axis of rotation comprising an axis parallel to the polarization axis of the polarization plate in the plane in which said phase delay axis or phase forward axis is formed.