Patent ID: 9406897
Filing Date: 2016-08-02
CPC Classification: H01L

Claim Text:
1. An organic electroluminescent element comprising: an anode, a cathode, a first light-emitting layer and a second light-emitting layer which are interposed between the anode and the cathode, a layer which is in contact with the first light-emitting layer on the anode side and satisfies relations of having a shallower LUMO (Lowest Unoccupied Molecular Orbital) and of having a higher minimum triplet excitation energy (T a layer which is in contact with the second light-emitting layer on the anode side and satisfies at least any one of relations of having a deeper LUMO (Lowest Unoccupied Molecular Orbital) and of having a lower minimum triplet excitation energy (T1) than those of the second light-emitting layer.