Patent ID: 8092925

Claim:
An organic electroluminescent device comprising: a pair of electrodes; and at least one organic compound layer including a light emitting layer between the pair of electrodes, wherein the light emitting layer contains a host material and a light emitting material, and wherein the host material contains a metal complex having a quadridentate ligand, which is a compound represented by Formula (2): wherein M 21 represents a metal ion; Q 23 and Q 24 each independently represents an atom group coordinating with M 21 ; L 22 represents a connection group selected from a dialkyl methylene group, a diaryl methylene group or a diheteroaryl methylene group, R 21 and R 22 each independently represents a substituent group; m 21 and m 22 each independently represents an integer from 0 to 3; M 21 -N bond (dotted line) represents a coordinate bond; and M 21 -Q 23 bond and M 21 -Q 24 bond each may be a covalent bond, a coordinate bond or an ion bond.