Organic electroluminescent device

US11456420B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Katja Scheible · Darmstadt, DE
• Beate Burkhart · Darmstadt, DE
• Nils Koenen · Griesheim, DE
• Lara-Isabel Rodriguez · Darmstadt, DE
• Sebastian Meyer · Bielefeld, DE
• Rouven Linge · Darmstadt, DE
• Miriam Engel · Darmstadt, DE
• Aaron LACKNER · Mannheim, DE
• Holger Heil · Frankfurt am Main, DE

Key dates

• Filing date: Jun 29, 2018
• Grant date: Sep 27, 2022
• Expiry date: Aug 1, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K85/657

Abstract

The present application relates to a blue light-emitting organic electroluminescent device (OLED) having an anode, a cathode, at least one blue light-emitting layer and at least one hole-transport layer, wherein the at least one blue light-emitting layer comprises an elongated bis-indenofluorene derivative as a main component and wherein the at least one hole-transport layer comprises a polymer with non-conjugated units as a main component as well as to a method for producing the organic electroluminescent device.