Invention Application
- Patent Title: ORGANIC ELECTROLUMINESCENCE ELEMENT AND ILLUMINATION DEVICE
- Patent Title (中): 有机电致发光元件和照明装置
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Application No.: US14647918Application Date: 2013-11-12
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Publication No.: US20150311453A1Publication Date: 2015-10-29
- Inventor: Hiroya TSUJI , Satoshi OHARA , Nobuhiro IDE
- Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Priority: JP2012-263281 20121130
- International Application: PCT/JP2013/006647 WO 20131112
- Main IPC: H01L51/00
- IPC: H01L51/00

Abstract:
The organic electroluminescence element includes: a positive electrode; a negative electrode; a plurality of light emitting layers interposed between the positive electrode and the negative electrode; and an interlayer-provided between the plurality of light emitting layers. The interlayer includes: a first layer-containing a nitrogen-containing heterocyclic compound; an alkali metal layer containing an alkali metal; a second layer containing a nitrogen-containing heterocyclic compound; and a hole injection layer containing an electron-accepting organic material. The first layer, the alkali metal layer, the second layer, and the hole injection layer are arranged in this order from the positive electrode to the negative electrode. The second layer is thicker than the alkali metal layer.
Information query
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