发明名称 |
LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE |
摘要 |
An object is to provide a light-emitting element capable of emitting light with a high luminance even at a low voltage, and having a long lifetime. The light-emitting element includes n EL layers between an anode and a cathode (n is a natural number of two or more), and also includes, between m-th EL layer from the anode and (m+1)-th EL layer (m is a natural number, 1@m@n-1), a first layer including a first donor material in contact with the m-th EL layer, a second layer including an electron-transport material and a second donor material in contact with the first layer, and a third layer including a hole-transport material and an acceptor material in contact with the second layer and the (m+1)-th EL layer. |
申请公布号 |
EP2436233(B1) |
申请公布日期 |
2016.08.10 |
申请号 |
EP20100780432 |
申请日期 |
2010.05.10 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO, LTD. |
发明人 |
NOWATARI, HIROMI;SEO, SATOSHI;OHSAWA, NOBUHARU;USHIKUBO, TAKAHIRO;TSUTSUI, TETSUO |
分类号 |
H05B33/12;B82Y10/00;H01L51/50 |
主分类号 |
H05B33/12 |
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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