Invention Grant
- Patent Title: Organic EL element and display device
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Application No.: US15526574Application Date: 2015-11-17
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Publication No.: US10892429B2Publication Date: 2021-01-12
- Inventor: Kazuhiro Yoneda , Noriyuki Matsusue
- 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: JP2014-232827 20141117,JP2014-232875 20141117
- International Application: PCT/JP2015/005748 WO 20151117
- International Announcement: WO2016/079985 WO 20160526
- Main IPC: H01L51/00
- IPC: H01L51/00 ; H01L51/50 ; C09K11/06 ; H05B33/14 ; G09F9/30

Abstract:
An organic electroluminescent (EL) element includes: a first electrode; an interlayer formed above the first electrode; an organic light-emitting layer formed using the interlayer as a foundation; and a second electrode formed above the organic light-emitting layer. The organic light-emitting layer contains at least a host material and a dopant material. The interlayer is formed using a material which has an energy gap larger than an energy gap of the dopant material and a highest occupied molecular orbital (HOMO) level deeper than a HOMO level of the dopant material.
Public/Granted literature
- US20170309854A1 ORGANIC EL ELEMENT AND DISPLAY DEVICE Public/Granted day:2017-10-26
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