发明名称 |
LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE |
摘要 |
The present invention provides a light-emitting element, a light-emitting device and an electronic device in which an optical path length through which generated light goes can be changed easily. The present invention provides a light-emitting element including a light-emitting layer between a first electrode and a second electrode, and a mixed layer in contact with the first electrode; in which the light-emitting layer includes a light-emitting substance; the mixed layer includes a hole transporting substance and a metal oxide showing an electron accepting property to the hole transporting substance, and has a thickness of 120 to 180 nm, and when a voltage is applied between the first electrode and the second electrode such that a potential of the first electrode is higher than that of the second electrode, the light-emitting substance emits light. |
申请公布号 |
US2013119428(A1) |
申请公布日期 |
2013.05.16 |
申请号 |
US201213713101 |
申请日期 |
2012.12.13 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO. LTD.;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
SAKATA JUNICHIRO;IKEDA HISAO;AOYAMA TOMOYA;KAWAKAMI TAKAHIRO;IWAKI YUJI;SEO SATOSHI |
分类号 |
H01L33/42 |
主分类号 |
H01L33/42 |
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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