发明名称 |
LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, ELECTRONIC APPARATUS AND LIGHTING DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To provide a light emitting element which has a structure in which a fluorescent emission layer and a phosphorescent emission layer are laminated and exhibits favorable luminous efficiency.SOLUTION: A light emitting element has an EL layer between a pair of electrodes. The EL layer has a luminescent layer and the luminescent layer has at least a laminated structure in which a first luminescent layer presenting fluorescent emission interfaces a second luminescent layer presenting phosphorescent emission. The second luminescent layer includes a plurality of layers which form at least an excited complex. The light emitting element has a laminated structure in which a layer which exhibits a luminescence peak of a wavelength longer than that of each luminescence peak obtained from two layers interfaces the layers forming the excited complex between the two layers. |
申请公布号 |
JP2015232994(A) |
申请公布日期 |
2015.12.24 |
申请号 |
JP20140238344 |
申请日期 |
2014.11.26 |
申请人 |
SEMICONDUCTOR ENERGY LAB CO LTD |
发明人 |
KAWADA TAKUYA;OSAWA NOBUHARU;NONAKA YUSUKE;ISHIZONE TAKAHIRO;SEO TETSUSHI |
分类号 |
H05B33/12;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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