Patent ID: 7083864

Claim:
A light emitting device comprising at least one organic layer including a light emitting layer between a pair of electrodes, wherein said at least one organic layer comprises at least one compound represented by formula (1): wherein Ar represents a heteroarene-triyl which can be substituted by a substituent group, and Ar 11 , Ar 21 and Ar 31 each represents an arylene group provided that at least one of Ar 11 , Ar 21 and Ar 31 each independently represents a fused arylene group, wherein the at least one of Ar 11 , Ar 21 and Ar 31 each represents a phenanthrenylene group, a pyrenylene group, a fluorenylene group, a chrysenylene group or a triphenylene group and Ar 21 , Ar 22 and Ar 32 each represents a substituent group.