Invention Grant
- Patent Title: Organic EL element and organic EL display panel
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Application No.: US15718381Application Date: 2017-09-28
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Publication No.: US10283727B2Publication Date: 2019-05-07
- Inventor: Kosuke Mishima
- Applicant: JOLED INC.
- Applicant Address: JP Tokyo
- Assignee: JOLED INC.
- Current Assignee: JOLED INC.
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2016-192871 20160930
- Main IPC: H01L51/56
- IPC: H01L51/56 ; H01L51/50 ; H01L51/52 ; H01L51/00

Abstract:
An organic EL element includes an anode, a cathode opposing the anode, a light-emitting layer disposed between the anode and the cathode, an electron transport layer disposed in contact with a cathode-side surface of the light-emitting layer, and an electron injection layer disposed between the electron transport layer and the cathode, in contact with the electron transport layer. Lowest unoccupied molecular orbital (LUMO) level of the electron transport layer is lower than at least one of LUMO level of the electron injection layer and Fermi level of a metal material included in the electron injection layer, and film thickness of the electron injection layer is greater than film thickness of the electron transport layer.
Public/Granted literature
- US20180097192A1 ORGANIC EL ELEMENT AND ORGANIC EL DISPLAY PANEL Public/Granted day:2018-04-05
Information query
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