A Plurality Of Host Materials And Organic Electroluminescent Device Comprising The Same

The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer disposed between an anode and a cathode, wherein the light-emitting layer comprises ahost and a phosphorescent dopant, wherein the host comprises a plurality of host compounds, wherein...

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Bibliographic Details
Main Authors KIM BITNA-RI, HONG JIN-RI, LEE TAE-JIN, KANG HEE-RYONG, LIM YOUNG-MOOK, CHO SANG-HEE
Format Patent
LanguageChinese
English
Published 26.01.2018
Subjects
ADHESIVES
CHEMISTRY
DYES
ELECTRICITY
HETEROCYCLIC COMPOUNDS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
PAINTS
POLISHES
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Summary:The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer disposed between an anode and a cathode, wherein the light-emitting layer comprises ahost and a phosphorescent dopant, wherein the host comprises a plurality of host compounds, wherein at least a first host compound of the plurality of host compounds has an amine-carbazole structuresubstituted with naphthyl-phenyl and aryl (Formula 1), and a second host compound has a di-C-benzocarbazole structure comprising nitrogen-containing heteroaryl (Formula 2). By using the plurality of host compounds of the present disclosure, the organic electroluminescent device may have long lifespan while maintaining high efficiency at high luminance compared to the conventional organic electroluminescent device using a sole host compound. 本发明涉及种有机电致发光装置，包含安置在阳极与阴极之间的至少个发光层，其中所述发光层包含主体和磷光掺杂剂，其中所述主体包含多种主体化合物，其中所述多种主体化合物中的至少第主体化合物具有被萘基-苯基和芳基取代的胺-咔唑结构(式1)，并且第二主体化合物具有包含含氮杂芳基的二-C-苯并咔唑(式2)。通过使用本公开的所述多种主体化合物，所述有机电致发光装置相比于使用单
Bibliography:Application Number: CN201680034134