Invention Grant
- Patent Title: Organic EL element
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Application No.: US15204288Application Date: 2016-07-07
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Publication No.: US10297776B2Publication Date: 2019-05-21
- Inventor: Kosuke Mishima , Yoshiyuki Ota , Junko Tanaka , Takahiro Komatsu , Hiroshi Katagiri
- 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: JP2015-137547 20150709
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L51/50 ; H01L27/32 ; H01L51/00

Abstract:
An organic electroluminescence (EL) element including an anode, a cathode opposing the anode, a light-emitting layer between the anode and the cathode, a hole transport layer in contact with the light-emitting layer, between the light-emitting layer and the anode, and an electron transport layer in contact with the light-emitting layer, between the light-emitting layer and the cathode. A difference between a lowest unoccupied molecular orbital (LUMO) level of an organic material included in the light-emitting layer and a LUMO level of an organic material included in the electron transport layer is greater than a difference between a highest occupied molecular orbital (HOMO) level of an organic material included in the hole transport layer and a HOMO level of the organic material included in the light-emitting layer.
Public/Granted literature
- US20170012231A1 ORGANIC EL ELEMENT Public/Granted day:2017-01-12
Information query
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