Invention Grant
- Patent Title: Organic electroluminescence device
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Application No.: US14701307Application Date: 2015-04-30
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Publication No.: US09966536B2Publication Date: 2018-05-08
- Inventor: Hiroaki Itoi
- Applicant: SAMSUNG DISPLAY CO., LTD.
- Applicant Address: KR Yongin, Gyeonggi-Do
- Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee Address: KR Yongin, Gyeonggi-Do
- Agency: Lee & Morse, P.C.
- Priority: JP2014-183625 20140909; JP2014-183626 20140909
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L51/00

Abstract:
An organic electroluminescent (EL) device including an anode; an emission layer for obtaining luminescence via a singlet excited state; and a laminated structure between the anode and the emission layer, the laminated structure including at least three layers having different components, wherein the laminated structure includes a first layer including a hole transport compound, the hole transport compound being obtained by doping an electron accepting compound having a lowest unoccupied molecular orbital (LUMO) level of about −9.0 eV to about −4.0 eV; and a second layer between the first layer and the emission layer, the second layer being closer to the emission layer than the first layer and including a compound represented by the following Formula 1:
Public/Granted literature
- US20160079542A1 ORGANIC ELECTROLUMINESCENCE DEVICE Public/Granted day:2016-03-17
Information query
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