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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 8963125 B1

PDFFull Text
Expired
Date of Patent:
Feb. 24, 2015

Filed:

Jun. 26, 2012

Led device, led device array, and method of driving the led device array

Applicant:

Yoshinobu Sekiguchi, Machida, JP;

Inventor:

Yoshinobu Sekiguchi, Machida, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Fitzpatrick, Cella, Harper & Scinto

Primary Examiner:

Justin Seo

Assistant Examiner:

Kendrick Liu

Int. Cl.
CPC ...
B41J 2/01 (2006.01); B41J 2/45 (2006.01); H01L 29/18 (2006.01); H01L 33/00 (2010.01); H01L 33/20 (2010.01); H01L 27/15 (2006.01); H01L 33/38 (2010.01);
U.S. Cl.
CPC ...
H01L 33/20 (2013.01); H01L 27/153 (2013.01); H01L 33/38 (2013.01); B41J 2/45 (2013.01);
Abstract

Provided is an LED device which is capable of reducing the emission size without changing the size of an LED and is capable of switching the emission size arbitrarily. The LED device includes, on a substrate, a carrier control layer, a lower current confinement layer, an active layer, and an upper current confinement layer. A p-type electrode is provided on the upper current confinement layer. Two n-type electrodes are arranged on the carrier control layer so as to dispose the p-type electrode between the two n-type electrodes in an in-plane direction of the substrate.

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Sekiguchi, Yoshinobu. (2015). Led device, led device array, and method of driving the led device array (U.S. Patent No. 8963125). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8963125

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