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 9874681 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 23, 2018

Filed:

Sep. 24, 2014
Applicant:

Sakai Display Products Corporation, Sakai-shi, Osaka, JP;

Inventor:

Ryo Yamakawa, Sakai, JP;

Assignee:

Sakai Display Products Corporation, Sakai-shi, Osaka, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0088 (2013.01); G02B 6/002 (2013.01); G02B 6/009 (2013.01); G02B 6/0073 (2013.01); G02B 6/0085 (2013.01);
Abstract

An illumination device according to one embodiment of the present invention comprises a light guide plate configured to emit light from inside through one surface of the light guide plate and a light source disposed to face a peripheral surface of the light guide plate. In the display apparatus, during non-light emitting of the light source, for distance s between the light source and the peripheral surface, a distance between a middle part of the light source in a peripheral edge direction of the light guide plate and a portion in the peripheral surface corresponding to the middle part is the longest.


Find Patent Forward Citations

Yamakawa, Ryo. (2018). Illumination device and display apparatus (U.S. Patent No. 9874681). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9874681

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

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