Organic EL element and organic EL display panel

US10381589B2 · kind B2 · utility

Assignee

• JOLED INC. · JP

Inventors

• Kosuke Mishima · Tokyo, JP
• Junko TANAKA · Saitama, JP
• Hiroshi Katagiri · Nagoya, JP
• Takahiro Komatsu · Kasai, JP

Key dates

• Filing date: Jul 27, 2016
• Grant date: Aug 13, 2019
• Expiry date: Jul 27, 2036

Classification

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

Abstract

An organic electroluminescence (EL) element including an anode, a light-emitting layer above the anode, a first functional layer on and in contact with the light-emitting layer, a second functional layer on and in contact with the first functional layer, and a cathode above the second functional layer. A lowest unoccupied molecular orbital (LUMO) level of the first functional layer is lower than at least one of a LUMO level of the second functional layer and a Fermi level of a metal material included in the second functional layer.