Patent · US Active

Phosphorescent OLED and hole transporting materials for phosphorescent OLEDS

US10868254B2 · kind B2 · utility

0Cited by

3References

10Claims

0Family size

Assignee

Novaled GmbH · DE

Inventors

Mike Zöllner · Dresden, DE
Jens Wutke · Dresden, DE
Martin Burkhardt · Miami, US

Key dates

Filing date	Mar 1, 2019
Grant date	Dec 15, 2020
Priority date	—
Expiry date	Mar 1, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH10K2102/103
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to phosphorescent organic light-emitting diodes (OLEDs) including a hole-transporting or a hole-transporting and an electron-blocking layer including an N,N,N′,N′-tetraaryl-phenylene-3,5-diamine or an N,N,N′,N′-tetraaryl-1,1′-biphenyl-3,3′-diamine matrix compound and to new N,N,N′,N′-tetraarylsubstituted m-arylene diamine compounds useful as hole-transporting and electron-blocking layer matrices in phosphorescent OLEDs.

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