发明名称 |
Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device |
摘要 |
A light-emitting element emitting phosphorescence and having high emission efficiency, in which a property of injecting holes to a light-emitting layer is increased, is provided. The light-emitting layer of the light-emitting element includes a first organic compound represented by the following general formula (G1) and a second organic compound which is a phosphorescent compound. The difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is lower than or equal to 0.3 eV. |
申请公布号 |
US2014084273(A1) |
申请公布日期 |
2014.03.27 |
申请号 |
US201314029208 |
申请日期 |
2013.09.17 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
NAKAYAMA TOMONORI;TAKASU TAKAKO;SHITAGAKI SATOKO;OSAKA HARUE;HAMADA TOSHIKI |
分类号 |
H01L51/00 |
主分类号 |
H01L51/00 |
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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