发明名称 |
Light-emitting element, light-emitting device and an electronic device which include two layers including the same light-emitting organic compound |
摘要 |
The present invention provides a light-emitting element including an electron-transporting layer and a hole-transporting layer between a first electrode and a second electrode; and a first layer and a second layer between the electron-transporting layer and the hole-transporting layer, wherein the first layer includes a first organic compound and an organic compound having a hole-transporting property, the second layer includes a second organic compound and an organic compound having an electron-transporting property, the first layer is formed in contact with the first electrode side of the second layer, the first organic compound and the second organic compound are the same compound, and a voltage is applied to the first electrode and the second electrode, so that both of the first organic compound and the second organic compound emit light.
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申请公布号 |
US8076676(B2) |
申请公布日期 |
2011.12.13 |
申请号 |
US20100686612 |
申请日期 |
2010.01.13 |
申请人 |
OHSAWA NOBUHARU;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
OHSAWA NOBUHARU |
分类号 |
H01L27/15;H01L29/06;H01L29/08;H01L29/22;H01L29/26;H01L31/0328;H01L31/0336;H01L31/109;H01L31/12;H01L33/00;H01L35/24;H01L51/00 |
主分类号 |
H01L27/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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