Patent · US Active

Phosphorescent emitters and host materials with improved stability

US9735377B2 · kind B2 · utility

5Cited by

33References

16Claims

0Family size

Assignee

UNIVERSAL DISPLAY CORPORATION · US

Inventors

Chuanjun Xia · Lawrenceville, US
Walter Yeager · Yardley, US
Bin Ma · Plainsboro, US
Scott Beers · Ewing, US
Jui-Yi Tsai · Newtown, US
James Fiordeliso · Yardley, US
Edward Barron · Hillsborough Township, US
Chun Lin · Yardley, US

Key dates

Filing date	Dec 30, 2016
Grant date	Aug 15, 2017
Priority date	—
Expiry date	Dec 30, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH10K2102/103
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Iridium complexes with ligands containing twisted aryl groups having extended conjugation (i.e., the twisted aryl is substituted with an additional aryl group) and organic light emitting devices including the same are disclosed. The iridium complexes can be used in organic light emitting devices may provide improved stability color, lifetime and manufacturing.

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