发明名称 |
LIGHT-EMITTING ELEMENT, LIGHTING DEVICE, AND ELECTRONIC APPLIANCE |
摘要 |
A tandem light-emitting element employing an inverted-structure is provided. The light-emitting element includes a cathode, a first EL layer over the cathode, a second EL layer over the first EL layer, an anode over the second EL layer, and an intermediate layer. The intermediate layer is between the first EL layer and the second EL layer. The intermediate layer includes a first layer, a second layer over the first layer, and a third layer over the second layer. The first layer includes a hole-transport material and an electron acceptor. The third layer includes an alkali metal or an alkaline earth metal. The second layer includes an electron-transport material. |
申请公布号 |
WO2015118426(A3) |
申请公布日期 |
2015.12.03 |
申请号 |
WO2015IB50633 |
申请日期 |
2015.01.28 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
KATAISHI, RIHO;SASAKI, TOSHIKI;NONAKA, YUSUKE;SEO, HIROMI |
分类号 |
H05B33/12;H01L51/50;H05B33/02;H05B33/26;H05B33/28 |
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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