Invention Grant
- Patent Title: Light emitting device having organic compound
- Patent Title (中): 具有有机化合物的发光元件
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Application No.: US13280632Application Date: 2011-10-25
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Publication No.: US08350469B2Publication Date: 2013-01-08
- Inventor: Shunpei Yamazaki , Hideaki Kuwabara
- Applicant: Shunpei Yamazaki , Hideaki Kuwabara
- Applicant Address: JP Atsugi-shi, Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Atsugi-shi, Kanagawa-ken
- Agency: Fish & Richardson P.C.
- Priority: JP2002-104194 20020405
- Main IPC: H01L51/00
- IPC: H01L51/00

Abstract:
When a light emitting element is actuated to allow the light emission, the generation of Joule heat occurs, leading to the decomposition or crystallization of an organic compound to cause the degradation of the light emitting device. Therefore, a light emitting element of the present invention is provided for effecting removing or decreasing the generation of heat. In the present invention, between two electrodes, layers having organic compounds and carbon-based thin films are alternatively laminated one after another for stepping down the driving voltage in the light emitting element using the tunnel effect. In addition, a carbon-based thin film is placed on a film containing an organic compound, so that it prevents the electric field from being locally concentrated and also prevents the generation of short-circuit between the anode and the cathode.
Public/Granted literature
- US20120037899A1 Light Emitting Device Public/Granted day:2012-02-16
Information query
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