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:
Sep. 08, 1998
Filed:
Apr. 08, 1997
Applicant:
Inventor:
Masanori Ogino, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
353 60 ; 353 57 ; 353 52 ;
Abstract
Disclosed is a projection type liquid crystal display device. The device comprises a light source; collimator elements; a liquid crystal panel which produces an image; a light path wall which defines a closed space and which surrounds and supports at least one of the collimator elements and the liquid crystal panel; a projection lens; and a screen. The light path wall is provided with a heat dissipation promoter on the outer surface thereof.