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. 30, 2019
Filed:
Oct. 24, 2016
Applicant:
National Taiwan University, Taipei, TW;
Inventors:
Assignee:
NATIONAL TAIWAN UNIVERSITY, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/52 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5203 (2013.01); H01L 51/5206 (2013.01); H01L 51/5221 (2013.01); H01L 51/5262 (2013.01); H01L 51/5275 (2013.01); H01L 51/0037 (2013.01); H01L 51/5268 (2013.01);
Abstract
An electroluminescent (EL) device is disclosed, comprising a high-index layer, having a first refractive index more than 1.8; a first electrode, which is transparent and disposed adjacent to the high-index layer; one or more functional layers, disposed adjacent to the first electrode and opposite to the high-index layer, including a light emitting layer; and, a second electrode, disposed adjacent to the one or more functional layers and opposite to the first electrode; wherein the first electrode has a second refractive index less than 1.7.