Patent ID: 8710493
Filing Date: 2014-04-29
Classification: C07D,H01L,H05B

Abstract:
1. An organic electroluminescence device comprising: an anode, a cathode; and layers between the anode and the cathode, the layers comprising a hole transporting layer, a first emitting layer, a second emitting layer, and an electron transporting layer, wherein the first emitting layer comprises a first host material and a first luminescent material, the second emitting layer is continuously formed on the first emitting layer near the cathode and comprises a second host material and a second luminescent material, the second host material is a monoazine derivative, a diazine derivative, or a triazine derivative, wherein a monoazine ring of the monoazine derivative, a diazine ring of the diazine derivative and a triazine ring of the triazine derivative are optionally fused with a ring structure except for a nitrogen-containing five-membered ring structure, and the first and second luminescent materials are different metal complexes.