Organic electroluminescent element

专利名称：Organic electroluminescent element发明人：Fumito Nariyuki申请号：US11362050申请日：20060227

公开号：US20060194076A1公开日：20060831

摘要：An organic electroluminescent element including one or more organiccompound layers including at least one luminescent layer between an anode and acathode, wherein the luminescent layer includes at least two host compounds and atleast two phosphorescent materials, and the phosphorescent materials include aphosphorescent material (D1) that satisfies at least one of the following conditions: (a)when the ionization potential of the phosphorescent material (D1) is defined as Ip(D1)and the minimum value out of the ionization potentials of the at least two host

compounds as Ip(H)min, ΔIp1 as defined by ΔIp1=Ip(D1)−Ip(H)min satisfies ΔIp1<0 eV,and (b) when the electron affinity of the phosphorescent material (D1) is defined asEa(D1) and the maximum value out of the electron affinities of the at least two hostcompounds as Ea(H)max, ΔEa1 as defined by ΔEa1=Ea(H)max−Ea(D1) satisfies ΔEa1<0 eV.

申请人：Fumito Nariyuki

地址：Kanagawa JP

国籍：JP

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