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. 17, 2012
Filed:
Feb. 16, 2011
Wataru Nabekura, Chichibu, JP;
Ryouichi Takeuchi, Chichibu, JP;
Wataru Nabekura, Chichibu, JP;
Ryouichi Takeuchi, Chichibu, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
A transparent-substrate light-emitting diode () has a light-emitting layer () made of a compound semiconductor, wherein the area (A) of a light-extracting surface having formed thereon a first electrode () and a second electrode () differing in polarity from the first electrode (), the area (B) of a light-emitting layer () formed as approximating to the light-extracting surface and the area (C) of the back surface of a light-emitting diode falling on the side opposite the side for forming the first electrode () and the second electrode () are so related as to satisfy the relation of A>C>B. The light-emitting diode () of this invention, owing to the relation of the area of the light-emitting layer () and the area of the back surface () of the transparent substrate and the optimization of the shape of a side face of the transparent substrate (), exhibits high brightness and high exoergic property never attained heretofore and fits use with an electric current of high degree.