Patent ID: 9490444
Filing Date: 2016-11-08
CPC Classification: H01L

Claim Text:
1. An organic light-emitting element comprising: an anode; a cathode disposed opposite the anode; an organic light-emitting layer disposed between the anode and the cathode, and containing an organic light-emitting material; an electron transport layer disposed between the organic light-emitting layer and the cathode, and transporting electrons injected from the cathode to the organic light-emitting layer; and a regulation layer disposed between and in contact with the organic light-emitting layer and the electron transport layer, and regulating transfer of constituent molecules of the organic light-emitting layer and of the electron transport layer while allowing transfer of electrons therebetween, wherein the electron transport layer is made of an organic substance, the regulation layer is not chemically reactive with the electron transport layer or the organic light-emitting layer, the electron transport layer contains: a first organic substance having an electron transport property; and a second organic substance that is of n-type and is different from the first organic substance, and a difference in energy level between a highest occupied molecular orbital of the first organic substance and a lowest unoccupied molecular orbital of the second organic substance is no more than 1.6 eV.