Patent ID: 8841655

Claim:
An organic electroluminescence element, comprising: on a substrate, a cathode and an anode; and an organic layer between the cathode and the anode, the organic layer including at least a light-emitting layer, the light-emitting layer including: a first light-emitting layer which is positioned closer to the cathode and which is made of a first host material; a second light-emitting layer which is positioned closer to the anode and which is made of a second host material; and a third light-emitting layer which is positioned between the first light-emitting layer and the second light-emitting layer and which is made of a third host material, the first host material, the second host material, and the third host material being different from one another, and the first host material, the second host material, and the third host material being doped with a same organic light-emitting material, and the first host material, the second host material, the third host material, and the organic light-emitting material meeting equations (1) and (2) below in terms of Highest Occupied Molecular Orbital (HOMO) and Lowest Unoccupied Molecular Orbital (LUMO): |HOMO of the first host material|>|HOMO of the organic light-emitting material| and |HOMO of the organic light-emitting material|<|HOMO of the third host material| (1) |LUMO of the second host material|<|LUMO of the organic light-emitting material| and |LUMO of the organic light-emitting material|>|LUMO of the third host material| (2).