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:
Nov. 29, 2016
Filed:
Dec. 05, 2015
Toyoda Gosei Co., Ltd., Kiyosu-shi, JP;
Masao Kamiya, Kiyosu, JP;
Toyoda Gosei, Co., Ltd., Kiyosu-shi, Aichi-ken, JP;
Abstract
A light-emitting device has a current blockage layer formed between a p-layer and a transparent electrode. A region of the transparent electrode on the current blockage layer has a higher sheet resistance as compared with the remaining region. The current blockage layer has a circular planar pattern containing a contact portion of a p-electrode. A straight line L passing through an arbitrary position in the contact portion and extending to a contact portion of an n-electrode with the shortest distance is defined. The center O' of the width of the current blockage layer in the direction of the straight line L is located more remote from the contact portion of the n-electrode than is the center O of the width of the contact portion of the p-electrode in the direction of the straight line L. This structure can suppress an increase in drive voltage.