Invention Grant
- Patent Title: Organic electroluminescence element
- Patent Title (中): 有机电致发光元件
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Application No.: US12791392Application Date: 2010-06-01
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Publication No.: US08445895B2Publication Date: 2013-05-21
- Inventor: Kenji Okumoto , Jeremy Burroughes , Julian Carter
- Applicant: Kenji Okumoto , Jeremy Burroughes , Julian Carter
- Applicant Address: JP Osaka GB Cambridgeshire
- Assignee: Panasonic Corporation,Cambridge Display Technology Ltd.
- Current Assignee: Panasonic Corporation,Cambridge Display Technology Ltd.
- Current Assignee Address: JP Osaka GB Cambridgeshire
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: GB0810044.8 20080602
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L35/24 ; H01L51/00

Abstract:
An organic electroluminescence element having a cathode as a top electrode, and excelling in luminance efficiency, drive voltage, and operational life is provided. The organic electroluminescence element includes an anode over a substrate and a luminescent layer over the anode. The luminescent layer comprises an organic material. An electron injection layer is over the luminescent layer for injecting electrons into the luminescent layer. The electron injection layer is a metal including at least one of an alkaline metal and an alkaline earth metal. A fullerene layer is over the electron injection layer and includes fullerenes and at least one of an alkaline metal and an alkaline earth metal. The at least one of the alkaline metal and the alkaline earth metal included in the fullerene layer has a lower work function than a lowest unoccupied molecular orbit energy level of the fullerenes. A cathode is over the fullerene layer.
Public/Granted literature
- US20100237341A1 ORGANIC ELECTROLUMINESCENCE ELEMENT Public/Granted day:2010-09-23
Information query
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