Patent · US Active

Organic light-emitting diode comprising electron transport layers with different matrix compounds

US10910581B2 · kind B2 · utility

1Cited by

1References

23Claims

0Family size

Assignee

Novaled GmbH · DE

Inventors

Bodo Wallikewitz · Dresden, DE
Carsten Rothe · Dresden, DE

Key dates

Filing date	Dec 15, 2015
Grant date	Feb 2, 2021
Priority date	—
Expiry date	Jun 4, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH10K85/6572
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to an organic light-emitting diode comprising an emission layer and an electron transport layer stack of at least two electron transport layers, wherein a first electron transport layer and a second electron transport layer comprises at least one matrix compound, wherein—the matrix compound or compounds of the first electron transport layer is/are different to the matrix compound or compounds of the second electron transport layer; and in addition, —the first electron transport layer comprises a dopant of a lithium halide and/or lithium organic complex; and—the second electron transport layer is free of a dopant.

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