发明授权
US07858977B2 Organic light emitting element and display device using the element
有权
有机发光元件和使用该元件的显示装置
- 专利标题: Organic light emitting element and display device using the element
- 专利标题(中): 有机发光元件和使用该元件的显示装置
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申请号: US12325790申请日: 2008-12-01
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公开(公告)号: US07858977B2公开(公告)日: 2010-12-28
- 发明人: Satoshi Seo , Shunpei Yamazaki
- 申请人: Satoshi Seo , Shunpei Yamazaki
- 申请人地址: JP Kanagawa-ken
- 专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址: JP Kanagawa-ken
- 代理机构: Fish & Richardson P.C.
- 优先权: JP2001-025971 20010201
- 主分类号: H01L35/24
- IPC分类号: H01L35/24 ; H01L51/00
摘要:
A hole transporting region made of a hole transporting material, an electron transporting region made of an electron transporting material, and a mixed region (light emitting region) in which both the hole transporting material and the electron transporting material are mixed and which is doped with a triplet light emitting material for red color are provided in an organic compound film, whereby interfaces between respective layers which exist in a conventional lamination structure are eliminated, and respective functions of hole transportation, electron transportation, and light emission are exhibited. In accordance with the above-mentioned method, the organic light emitting element for red color can be obtained in which power consumption is low and a life thereof is long. Thus, the display device and the electric device are manufactured by using the organic light emitting element.
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