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
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