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:
Mar. 12, 2013
Filed:
Feb. 23, 2010
Toshiya Kuroda, Tsukuba, JP;
Kazuhito Watanabe, Tsukuba, JP;
Toshiya Kuroda, Tsukuba, JP;
Kazuhito Watanabe, Tsukuba, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
An objective of the present invention is to provide a substrate that can achieve high light extraction efficiency, and to provide an organic EL light-emitting apparatus with high light-emitting efficiency by using such a substrate. The present invention is a substrate () comprising a transparent substrate () and a light-concentrating structural body layer (), wherein the light-concentrating structural body layer () includes a plurality of structural bodies () having a conic shape or a hemispherical shape, with the bottom faces of the plurality of structural bodies () having a conic shape or a hemispherical shape being located on the same plane. The structural body () is preferably a structural body having a cone shape, a square pyramid shape or a triangular pyramid shape.