Organic light-emitting device

摘要

The present invention refers to an organic light-emitting device including a substrate (1); a first electrode (5) disposed on the substrate; a second electrode (9); an organic layer (7) disposed between the first electrode and the second electrode, the organic layer including a hole transport layer, an emission layer and an electron transport layer; and a layer (6) disposed between the first electrode and the hole transport layer, the at least one layer including at least one cyano group-containing compound.