Organic electroluminescent device

An OLED, comprising an anode, a cathode, and an organic layer,

• the organic layer at least contains one or more layer containing light emitting layer from the hole injection layer, hole transport layer, electron injection layer, electron transport layer, light emitting layer;
• the light emitting layer is a host guest doping system composed of host materials and guest materials, the light-emitting zone of the light emitting layer is 490-750 nm, and the host material has a structure with the formula (I),
• Wherein R1-R17 independently represent hydrogen, deuterium, halogen, cyano, nitro, C1-C8 alkyl, C1-C8 alkoxy, C6-C30 substituted or unsubstituted aryls, C3-C30 substituted or unsubstituted aryls containing one or more heteroatoms, C2-C8 substituted or unsubstituted alkenyl, C2-C8 substituted or unsubstituted alkynyl, wherein Ar1-Ar3 independently represent C6-C60 substituted or unsubstituted aryl, C3-C60 substituted or unsubstituted heteroaryl containing one or more heteroatoms, triaryl (C6-C30) amine.