Organic electroluminescent element, organic electroluminescent unit, and electronic apparatus

US10818863B2 · kind B2 · utility

Assignee

• JOLED INC. · JP

Inventor

• Kosuke Mishima · Tokyo, JP

Key dates

• Filing date: Sep 7, 2018
• Grant date: Oct 27, 2020
• Expiry date: Sep 7, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/80524

Abstract

An organic electroluminescent element according to one embodiment of the disclosure includes, in order, an anode, an organic light-emitting layer, an electron transport layer, an intermediate layer, and a cathode. The electron transport layer includes a sodium fluoride layer. The intermediate layer includes an ytterbium layer. The ytterbium layer is in contact with the sodium fluoride layer on side of the cathode.