发明名称 |
LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE |
摘要 |
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. |
申请公布号 |
US2012168738(A1) |
申请公布日期 |
2012.07.05 |
申请号 |
US201213415055 |
申请日期 |
2012.03.08 |
申请人 |
NOWATARI HIROMI;SEO SATOSHI;OHSAWA NOBUHARU;TSUTSUI TETSUO;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
NOWATARI HIROMI;SEO SATOSHI;OHSAWA NOBUHARU;TSUTSUI TETSUO |
分类号 |
H01L51/54 |
主分类号 |
H01L51/54 |
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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