Patent · US Active

Organic light-emitting devices

US7691495B2 · kind B2 · utility

1Cited by

21References

15Claims

0Family size

Assignee

University of Hong Kong · CN

Inventors

Chi-Ming Che · Hong Kong, CN
Siu-Chung Chan · Hong Kong, CN

Key dates

Filing date	Mar 5, 2007
Grant date	Apr 6, 2010
Priority date	—
Expiry date	Mar 13, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/917
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.