Patent · US Active

Materials for organic electroluminescent devices

US8932732B2 · kind B2 · utility

14Cited by

3References

18Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Arne Buesing · Frankfurt, DE
Philipp Stoessel · Frankfurt am Main, DE
Holger Heil · Frankfurt am Main, DE

Key dates

Filing date	May 3, 2007
Grant date	Jan 13, 2015
Priority date	—
Expiry date	Sep 8, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/917
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to organic electroluminescent devices, in particular blue-emitting devices, in which compounds of the formulae (1) to (4) are used as host material or dopant in the emitting layer and/or as hole-transport material and/or as electron-transport material.

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