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. 06, 2010
Filed:
Mar. 05, 2007
Applicants:
Chi-ming Che, Hong Kong, CN;
Siu-chung Chan, Hong Kong, CN;
Inventors:
Chi-Ming Che, Hong Kong, CN;
Siu-Chung Chan, Hong Kong, CN;
Assignee:
The University of Hong Kong, Hong Kong, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); H05B 33/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed are electrophosphorescent organic metal complexes with formula (I) or (II), of either geometrical isomers, comprising two bidentate NN-type ligandsor a tetradentate NNNN-type ligand, and a transition metal. These electrophosphorescent materials are valuable to the application in organic light-emitting devices (OLEDs), including red-, orange-, or yellow-light OLEDs.