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:
Feb. 23, 2016
Filed:
Apr. 19, 2012
Chun Sing Lee, Hong Kong, HK;
Xiao Hong Zhang, Hong Kong, HK;
Shuit Tong Lee, Hong Kong, HK;
Caijun Zheng, Hong Kong, HK;
Man Keung Fung, Hong Kong, HK;
Chun Sing Lee, Hong Kong, HK;
Xiao Hong Zhang, Hong Kong, HK;
Shuit Tong Lee, Hong Kong, HK;
Caijun Zheng, Hong Kong, HK;
Man Keung Fung, Hong Kong, HK;
NANO AND ADVANCED MATERIALS INSTITUTE LIMITED, Hong Kong, HK;
Abstract
The present invention provides a bipolar compound represented by formula (I) and the derivatives thereof as a host material having excellent bipolar transporting properties for organic light-emitting diodes (OLEDs). The present invention also relates to a device including at least a layer of the bipolar compound and/or the derivatives thereof as a host material and a method of making the same.