Patent · US Active

Organic electroluminescent device

US9385335B2 · kind B2 · utility

10Cited by

3References

16Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Christof Pflumm · Darmstadt, DE
Niels Schulte · Kelkheim, DE

Key dates

Filing date	Mar 7, 2012
Grant date	Jul 5, 2016
Priority date	—
Expiry date	Mar 7, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH10K2101/40
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to phosphorescent organic electroluminescent devices which have a low concentration of the phosphorescent emitter in the emitting layer.

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