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:
Oct. 16, 1990
Filed:
Aug. 22, 1989
Applicant:
Inventor:
Akira Miyajima, Tokorzawa, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G03B / ;
U.S. Cl.
CPC ...
3503 / ; 350334 ; 350337 ; 350330 ; 353119 ; 353 60 ;
Abstract
A liquid crystal display device is used in a projector for projecting an image on a liquid crystal display panel onto a screen. The display device has a housing having a panel housing portion and a control circuit housing portion. The liquid crystal display panel is housed in the panel housing portion, and a control circuit is housed in the control circuit housing portion. A pair of transparent shielding plates are provided on the front and rear covers for protecting the liquid crystal display panel. A part of the front and rear covers adjacent the shielding plates are made of metal for radiating heat of the liquid crystal display panel.