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. 21, 1998
Filed:
Feb. 28, 1997
Applicant:
Inventor:
Satoshi Imoto, Higashimurayama, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02F / ;
U.S. Cl.
CPC ...
349 62 ; 349 58 ; 349161 ;
Abstract
A display device which suppresses the rise in temperature while making the distribution of temperature uniform, and features high display quality and reliability. The display device employs a light-guide plate provided with a heat conduction plate of a large heat conductivity on the back surface thereof. A gap is provided between the heat conduction plate and a holding member on the lower surface that holds the heat conduction plate, fluorescent tubes and the light-guide plate.