Invention Grant
- Patent Title: Organic electroluminescent element and display device or light emitting device equipped with the same
- Patent Title (中): 有机电致发光元件和显示装置或配备其的发光装置
-
Application No.: US11477991Application Date: 2006-06-29
-
Publication No.: US08153275B2Publication Date: 2012-04-10
- Inventor: Yuji Hamada , Haruhisa Hashimoto , Masahiro Iyori , Kazuki Nishimura , Kenji Okumoto , Masaya Nakai
- Applicant: Yuji Hamada , Haruhisa Hashimoto , Masahiro Iyori , Kazuki Nishimura , Kenji Okumoto , Masaya Nakai
- Applicant Address: JP Moriguchi
- Assignee: Sanyo Electric Co., Ltd.
- Current Assignee: Sanyo Electric Co., Ltd.
- Current Assignee Address: JP Moriguchi
- Agency: Masuvalley & Partners
- Priority: JP2005-193215 20050630
- Main IPC: H01L51/54
- IPC: H01L51/54

Abstract:
It is an object of the present invention to provide an organic electroluminescent element having a longer lifetime. In order to accomplish the object, an organic electroluminescent element adapted to comprise a light emitting layer including an organic material between an anode and a cathode is provided with a hole transport layer for transporting holes injected from the anode toward the light emitting layer. Along with the hole transport layer, an intermediate layer having an energy level of a lowest unoccupied molecular orbital lower than those of the hole transport layer and the light emitting layer is provided therebetween.
Public/Granted literature
- US20070009762A1 Organic electroluminescent element and display device or light emitting device equipped with the same Public/Granted day:2007-01-11
Information query
IPC分类: