Organic EL element having one functional layer with NaF and the other functional layer with Yb

US11758749B2 · kind B2 · utility

Assignee

• JOLED INC. · JP

Inventors

• Kosuke Mishima · Tokyo, JP
• Koyo Sakamoto · Tokyo, JP
• Muneharu Sato · Tokyo, JP

Key dates

• Filing date: Jul 12, 2021
• Grant date: Sep 12, 2023
• Expiry date: Sep 24, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/351

Abstract

An organic electroluminescence element includes an anode, an organic light emitting layer disposed on an upper side of the anode, a first functional layer disposed over the organic light emitting layer and including NaF, a second functional layer disposed over the first functional layer and including an organic material containing Yb, and a cathode disposed on an upper side of the second functional layer. A method of manufacturing an organic electroluminescence element, includes forming an anode, forming an organic light emitting layer on an upper side of the anode, forming a first functional layer including NaF over the organic light emitting layer, forming a second functional layer including an organic material containing Yb over the first functional layer, and forming a cathode on an upper side of the second functional layer.