Patent ID: 8703300

Claim:
An organic electroluminescent element comprising a substrate having thereon at least an anode, a cathode and a plurality of organic compound layers comprising at least one light emission layer, the organic compound layers being provided between the anode and the cathode, wherein the organic compound layers comprise an electron transport material containing layer comprising an electron transport material represented by following Formula (a) and at least one selected from the group consisting of a metal, a salt of the metal and an electron-donating compound: Ar1-(Ar2) n Formula (a) wherein Ar1 represents a group derived from an aromatic hydrocarbon ring or a group derived from an aromatic heterocycle; Ar2 represents a group derived from an aromatic heterocycle selected from the group consisting of a pyridine ring, a pyrazine ring, a pyrimidine ring, a pyridazine ring, a triazine ring, a quinazoline ring, a quinoline ring, an isoquinoline ring, a naphthyridine ring, and a cinnoline ring; and n represents an integer of 4 or more, wherein none of the pyridine ring, the pyrazine ring, the pyrimidine ring, the pyridazine ring, the triazine ring, the quinazoline ring, the quinoline ring, the isoquinoline ring, the naphthyridine ring, and the cinnoline ring further has a condensed ring, except for a pyrimidine ring attached with a condensed benzene ring to obtain the quinazoline ring, a pyridine ring attached with a condensed benzene ring to obtain the quinoline ring, a pyridine ring attached with a condensed benzene ring to obtain the isoquinoline ring, a pyridine ring attached with a condensed benzene ring to obtain the napthyridine ring, a pyridazine ring attached with a condensed benzene ring to obtain the cinnoline ring; wherein each of Ar2 is directly bonded to Ar1.