Patent · US Active

Material mixtures for use in electroluminescence

US8058790B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Arne Buesing · Frankfurt, DE
Rene Peter Scheurich · Groß-Zimmern, DE
Susanne Heun · Bad Soden, DE
Ingrid Bach · Hofheim, DE

Key dates

Filing date	May 10, 2005
Grant date	Nov 15, 2011
Priority date	—
Expiry date	May 6, 2028

Classification

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

Abstract

The invention relates to mixtures comprising at least one polymer, additionally comprising structural units containing at least one element from the 4th main group different from carbon and additionally comprising structural units that are triplet emissives. The inventive materials are better suited to the use in phosphorescent organic light emitting diodes than comparable prior art materials.

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