Heterocyclic compound and organic light emitting device using same

A hetero-cyclic compound represented by the following Chemical Formula] 2 or 3:

• wherein, in Chemical Formula 2 and 3,
• at least one of R1 to R5 is represented by -(L2)p-(Z2)q and the rest are hydrogen;
• or deuterium,
• at least one of R12 to R16 is represented by -(L3)r-(Z3)s, and the rest are hydrogen;
• or deuterium,
• L2 and L3 are the same as or different from each other, and each independently a direct bond;
• or a substituted or unsubstituted C6 to C60 arylene group,
• Z2 and Z3 are the same as or different from each other, and each independently selected from the group consisting of a substituted or unsubstituted pyridine group;
• a substituted or unsubstituted pyrimidine group;
• a substituted or unsubstituted triazine group;
• a substituted or unsubstituted phenanthroline group;
• a substituted or unsubstituted quinoline group;
• a substituted or unsubstituted carbazole group;
• a substituted or unsubstituted dibenzofuran group;
• a substituted or unsubstituted dibenzothiophene group;
• a substituted or unsubstituted anthracene group;
• a substituted or unsubstituted phenanthrene group;
• a substituted or unsubstituted biphenyl group;
• a substituted or unsubstituted naphthyl group;
• and —P(═O)RR′,
• p and r are an integer of 0 to 4;
• q and s are an integer of 1 to 4;
• R6 to R11 are hydrogen or deuterium;
• and
• R, and R′ are the same as or different from each other, and each independently hydrogen;
• deuterium;
• —CN;
• a substituted or unsubstituted C1 to C60 alkyl group;
• a substituted or unsubstituted C3 to C60 cycloalkyl group;
• a substituted or unsubstituted C6 to C60 aryl group;
• or a substituted or unsubstituted C2 to C60 heteroaryl group.