发明名称 |
Light emitting element and light emitting device |
摘要 |
A light emitting element of the invention includes n pieces of light emitting layers (n is a natural number) between first and second electrodes. A first layer and a second layer are provided between the mth light emitting layer (m is a natural number of 1<=m<=n) and the m+1th light emitting layer. The first and second layers are contacted to each other. The first layer contains a substance that transports holes easily and a substance with an electron accepting property. The second layer contains a substance that transports electrons easily and a substance with an electron donating property. Molybdenum oxide is used as the substance with the electron accepting property.
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申请公布号 |
US7598670(B2) |
申请公布日期 |
2009.10.06 |
申请号 |
US20050593193 |
申请日期 |
2005.05.17 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
KUMAKI DAISUKE;IKEDA HISAO;ABE HIROKO;SEO SATOSHI |
分类号 |
H01J63/04;H01L27/32;H01L51/50;H01L51/52;H05B33/12;H05B33/14;H05B33/22 |
主分类号 |
H01J63/04 |
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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