Organic electroluminescent device with thermally activated delayed fluorescence material

US10069079B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Philipp Stoessel · Frankfurt am Main, DE
• Amir Hossain Parham · Frankfurt am Main, DE
• Christof Pflumm · Darmstadt, DE
• Anja Jatsch · Frankfurt am Main, DE
• Joachim Kaiser · Frankfurt am Main, DE

Key dates

• Filing date: Mar 18, 2014
• Grant date: Sep 4, 2018
• Expiry date: Aug 20, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/40

Abstract

The present invention relates to organic electroluminescent devices which comprise mixtures of at least one electron-conducting material and an emitting material which has a small singlet-triplet separation.