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:
Dec. 05, 2017
Filed:
Oct. 15, 2015
National Taiwan University, Taipei, TW;
Chung-Chih Wu, Taipei, TW;
Yi-Hsiang Huang, Taipei, TW;
Wei-Lung Tsai, Taipei, TW;
Min Jiao, Taipei, TW;
Wei-Kai Lee, Taipei, TW;
NATIONAL TAIWAN UNIVERSITY, Taipei, TW;
Abstract
An electroluminescent (EL) device is disclosed, comprising a first electrode, a second electrode, one or more functional layers, and a conducting layer. The first electrode is transparent and with a high refractive index nmore than 1.75. The one or more functional layers include a light emitting layer. The conducting layer has a low refractive index nless than 1.65, being disposed between the first electrode and the one or more functional layers. By judicious combination of the first electrode and conducting layer to induce appropriate microcavity effects, increased coupling efficiencies of EL device could be then obtained.