Invention Grant
- Patent Title: Organic electroluminescence element
- Patent Title (中): 有机电致发光元件
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Application No.: US13885583Application Date: 2012-05-14
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Publication No.: US08729542B2Publication Date: 2014-05-20
- Inventor: Masahiro Nakamura , Masahito Yamana , Mitsuo Yaguchi , Takeyuki Yamaki
- Applicant: Masahiro Nakamura , Masahito Yamana , Mitsuo Yaguchi , Takeyuki Yamaki
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2011-113516 20110520
- International Application: PCT/JP2012/062254 WO 20120514
- International Announcement: WO2012/161004 WO 20121129
- Main IPC: H01L51/50
- IPC: H01L51/50

Abstract:
Providing an organic electroluminescence element that can reduce the unevenness of the brightness and can improve the external quantum efficiency. The organic electroluminescence element includes a substrate 10, a first electrode 20, a second electrode 40, a functional layer 30 interleaved between the first electrode 20 the second electrode 40 and including a light emission layer 32, and a conductive layer 50. The resistivities of the first electrode 20 and the second electrode 40 are less than the resistivity of transparent conductive oxide. The second electrode 40 has an opening for light extraction. The functional layer 30 includes, as the outermost layer on the second electrode 40 side, a carrier injection layer 34. The conductive layer 50 is optically transparent and is in contact with the second electrode 40 and the functional layer 30. The carrier injection layer 34 has a recess in the projection domain of the opening.
Public/Granted literature
- US20130240861A1 ORGANIC ELECTROLUMINESCENCE ELEMENT Public/Granted day:2013-09-19
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