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. 05, 2011
Filed:
Mar. 04, 2008
Shinya Matsumoto, Hirakata, JP;
Ryuhei Amano, Hirakata, JP;
Shinya Matsumoto, Hirakata, JP;
Ryuhei Amano, Hirakata, JP;
SANYO Electric Co., Ltd., Moriguchi-shi, JP;
Abstract
A projection display device comprises: a light source; liquid crystal panels disposed corresponding to R light, G light and B light; a light guiding optical system for guiding R light, G light and B light among light from the light source to respective corresponding liquid crystal panels; a dichroic prism for synthesizing the R light, G light and B light modulated by the liquid crystal panels; a projection optical system having a curved mirror for enlarging and projecting the light synthesized by the dichroic prism; and a bending mirror. A placement plane for optical members is orthogonal to a projection plane (screen surface), and shorter sides of optical members forming the liquid crystal panels and the light guiding optical system are placed on the placement plane.