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:
Jul. 01, 2014
Filed:
Jun. 15, 2010
Applicant:
Kyoko Yamamoto, Ibaraki, JP;
Inventor:
Kyoko Yamamoto, Ibaraki, JP;
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); H01L 21/00 (2006.01); F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light extracting member for an organic electroluminescent element, to be provided on a side for extracting light emitted by the organic electroluminescent element, wherein a light extracting surface of the member has a concave-convex structure which is configured such that when comparing an intensity of light that enters the member and is output from the light extracting surface with an intensity of light that is output from a flat light extracting surface of a virtual member, a frontal intensity and an integrated intensity of the former are each greater by a factor of 1.3 or more.