ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY AND LI

专利名称：ORGANIC ELECTROLUMINESCENT ELEMENT,

DISPLAY AND LIGHTING DEVICE

发明人：Satomi KAWABE,Kunio TANI,Hiroto ITO申请号：US16302459申请日：20170406

公开号：US20190280216A1公开日：20190912

专利附图：

摘要：Provided are an organic electroluminescent element having a long lifetime andpreventing a voltage rise and a decrease in efficiency after driven for a long time, adisplay and a lighting device both of which include the element. The organic

electroluminescent element includes a luminescent layer sandwiched between an anodeand a cathode, and a plurality of organic layers including the luminescent layer. Theluminescent layer contains a phosphorescent compound and host compounds A and Bboth of which satisfy the following equations and requirement (11). Host CompoundA=X+nR, Host Compound B=X+mR; and (11) [HOMO Energy level of Host CompoundA]−[HOMO Energy level of Host Compound B]≥0.15 eV.

申请人：Konica Minolta, Inc.

地址：Tokyo JP

国籍：JP

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