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. 26, 2013
Filed:
Jan. 18, 2007
Wataru Nabekura, Chichibu, JP;
Wataru Nabekura, Chichibu, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
A light-emitting diode () includes a transparent substrate and a compound semiconductor layer that contains a light-emitting part () containing a light-emitting layer () formed of (AlGa)InP (0≦X≦1 and 0<Y≦1) joined to the transparent substrate (). The light-emitting diode () has on a main light-extracting surface thereof a first electrode () and a second electrode () different in polarity from the first electrode. The transparent substrate has side faces that are a first side face () roughly perpendicular to a light-emitting surface of the light-emitting layer on a side near the light-emitting layer and a second side face () inclined relative to the light-emitting surface on a side distant from the light-emitting layer and coarsened with irregularities falling in a range of 0.05 μm to 3 μm.