Patent ID: 7982213

Claim:
An organic light emitting device comprising: an anode and a cathode; and an organic compound layer interposed between the anode and the cathode and comprising a light emitting layer and an electron transporting layer, wherein at least one of the light emitting layer and the electron transporting layer comprises a phenanthroline compound represented by the general formula [I]: wherein R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 are each a hydrogen atom, and Ar 1 and Ar 2 are the same or different and are each a fluorenyl group represented by the general formula [IV]: wherein R 17 is a hydrogen atom, and R 18 and R 19 are the same or different and are each selected from a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group, a tert-butyl group, and an octyl group.