Patent ID: 8785918

Claim:
An organic light emitting device, comprising: a first electrode and a second electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer comprises a compound represented by the following Formula 1, and the second electrode is a double layer comprised of LiF:Mg: where, R 1 and R 2 are each independently or simultaneously a group derived from the group consisting of a hydrogen atom, an aliphatic hydrocarbon having 1 to 20 carbon atoms, phenyl, naphthyl, biphenyl, anthracenyl, an aromatic heterocyclic ring, or an aromatic ring, Ar is a group derived from the group consisting of phenyl, naphthyl, biphenyl, anthracenyl, an aromatic heterocyclic ring, or an aromatic ring, R 3 is a group derived from the group consisting of a hydrogen atom, an alkyl group or aliphatic hydrocarbon having 1 to 6 carbon atoms, a substituted phenyl, naphthyl, biphenyl, anthracenyl, an aromatic heterocyclic ring, or an aromatic ring, X is NR 4 , a sulfur atom, or an oxygen atom, and R 4 is a group derived from a hydrogen atom, an alkyl group or aliphatic hydrocarbon having 1 to 7 carbon atoms, phenyl, naphthyl, biphenyl, anthracenyl, or an aromatic heterocyclic ring.