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:
May. 01, 2007
Filed:
Aug. 17, 2004
Masakazu Hoshino, Chiyoda, JP;
Shigeo Ohashi, Tsuchiura, JP;
Tatsuo Morita, Tokyo, JP;
Katsuyuki Watanabe, Mito, JP;
Masakazu Hoshino, Chiyoda, JP;
Shigeo Ohashi, Tsuchiura, JP;
Tatsuo Morita, Tokyo, JP;
Katsuyuki Watanabe, Mito, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A liquid crystal display device in which light from a light source enters a liquid crystal panel and exits therefrom for projection of an image and includes a heat conducting member and a cooling unit. The heat conducting member is contacted with at least one of a light incident surface and a light outgoing surface of the liquid crystal panel, is light-transmissive, and has a larger area than a light transmitting area of the liquid crystal panel. The cooling jacket, which comprises a flow channel for a cooling medium in its inside, is provided around the heat conducting member so that the flow channel exists only outside of the light transmitting area in a surface direction of the liquid crystal panel.