发明名称 LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, ELECTRONIC APPARATUS, AND ILLUMINATION APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide a light emitting element small in increase of driving voltage associated with the accumulation of light emission time, and to provide a light emitting element small in increase of a resistance value associated with the increase of film thickness. SOLUTION: This light emitting element includes: a first layer 311, a second layer 312 and a third layer 313 between a first electrode 301 and a second electrode 302 formed to face each other. The first layer is provided to be closer to the first electrode side than the second layer, and the third layer is provided to be closer to the second electrode side than the second layer. The first layer contains an aromatic amine compound and a substance exhibiting an electron accepting property to the compound. The second layer contains a substance of which the electron transporting property is higher than a hole transporting property, and a substance exhibiting an electron donating property to the substance. COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2011176355(A) 申请公布日期 2011.09.08
申请号 JP20110103583 申请日期 2011.05.06
申请人 SEMICONDUCTOR ENERGY LAB CO LTD 发明人 KUMAKI DAISUKE;SEO TETSUSHI
分类号 H01L51/50;H05B33/26 主分类号 H01L51/50
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