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.:

US 7248308 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 24, 2007

Filed:

Dec. 04, 2003
Applicants:

Hitoshi Mizutani, Iwata-gun, JP;

Satoshi Kawashima, Iwata-gun, JP;

Kazutoshi Takayanagi, Iwata-gun, JP;

Katsuji Ishigami, Iwata-gun, JP;

Motoji Egawa, Iwata-gun, JP;

Inventors:

Hitoshi Mizutani, Iwata-gun, JP;

Satoshi Kawashima, Iwata-gun, JP;

Kazutoshi Takayanagi, Iwata-gun, JP;

Katsuji Ishigami, Iwata-gun, JP;

Motoji Egawa, Iwata-gun, JP;

Assignee:

Minebea Co., Ltd., Nagano, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract

A spread illuminating apparatus includes: at least one light source; a light conductive plate which has the at least one light source disposed at one end surface thereof, and which allows light emitted from the at least one light source and introduced therein to exit out therefrom through both major surfaces thereof toward first and second liquid crystal display elements disposed respectively over the both major surfaces of the light conductive plate, wherein the second liquid crystal display element has a smaller display screen size than the first liquid crystal display element; and a reflecting means which is disposed at the other major surface of the light conductive plate so as to cover at least areas not covered by the second liquid crystal display element, and which reflects light toward the first liquid crystal display element.


Find Patent Forward Citations

Mizutani, Hitoshi. (2007). Spread illuminating apparatus to illuminate two liquid crystal display panels different in screen size (U.S. Patent No. 7248308). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7248308

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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