Patent ID: 8147986

Claim:
An organic electroluminescent device comprising an organic compound layer provided between a pair of electrodes, which comprises a polymer represented by the formula wherein Uem represents a unit comprising a metal complex represented by the following Formula (3-C): wherein R C1 and R C2 each independently represent an alkyl group or an aryl group; R C3 , R C4 , R C5 , and R C6 each independently represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, a halogen atom, or a cyano group; each of n C3 and n C6 represents an integer of 0 to 3; each of n C4 and n C5 represents an integer of 0 to 4; when there are plural R C3 s, R C4 s, R C5 s, or R C6 s, the plural R C3 s, R C4 s, R C5 s, or R C6 s may be the same as each other or different from each other, the metal complex being linked to the polymer via R C1 ; wherein Up represents a unit comprising a hole transporting moiety having the following structure: wherein the asterisk * represents a site at which the hole transporting moiety bonds to the polymer; and each of m and n represents a mole percentage that satisfies the equation of m+n=100 mol %, with the mole percent ratio of m:n being in the range of from 5:95 to 20:80.