发明名称 |
Light-emitting element, light-emitting device, electronic device, and lighting device |
摘要 |
<p>Light-emitting elements in which an increase of driving voltage can be suppressed are provided. Light-emitting devices whose power consumption is reduced by including such light-emitting elements are also provided. In a light-emitting element having an EL layer between an anode and a cathode, a first layer in which carriers can be produced is formed between the cathode and the EL layer and in contact with the cathode, a second layer which transfers electrons produced in the first layer is formed in contact with the first layer, and a third layer which injects the electrons received from the second layer into the EL layer is formed in contact with the second layer.</p> |
申请公布号 |
EP2192634(A1) |
申请公布日期 |
2010.06.02 |
申请号 |
EP20090177561 |
申请日期 |
2009.12.01 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
NOWATARI, HIROMI;SEO, SATOSHI;OHSAWA, NOBUHARU;TSUTSUI, TETSUO |
分类号 |
H01L51/50;H01L51/00 |
主分类号 |
H01L51/50 |
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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