Nitrogen-containing polycyclic compound and organic light emitting device using same (as amended)

A multicyclic compound including nitrogen represented by the following Formula 1:

• in Formula 1,
• at least one of R4 and R5 is -(L2)q-Ar2,
• L1 and L2 are the same as or different from each other, and are each independently a direct bond;
• a substituted or unsubstituted alkylene;
• a substituted or unsubstituted arylene;
• or a substituted or unsubstituted heteroarylene,
• Ar1 and Ar2 are the same as or different from each other, and are each independently a nitrile group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heterocyclic group,
• R1 to R6 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a halogen group;
• a nitrile group;
• a nitro group;
• a hydroxy group;
• a carbonyl group;
• an ester group;
• an imide group;
• an amino group;
• a substituted or unsubstituted silyl group;
• a substituted or unsubstituted boron group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted cycloalkyl group;
• a substituted or unsubstituted alkoxy group;
• a substituted or unsubstituted aryloxy group;
• a substituted or unsubstituted alkylthioxy group;
• a substituted or unsubstituted arylthioxy group;
• a substituted or unsubstituted alkylsulfoxy group;
• a substituted or unsubstituted arylsulfoxy group;
• a substituted or unsubstituted alkenyl group;
• a substituted or unsubstituted aralkyl group;
• a substituted or unsubstituted aralkenyl group;
• a substituted or unsubstituted alkylaryl group;
• a substituted or unsubstituted alkylamine group;
• a substituted or unsubstituted aralkylamine group;
• a substituted or unsubstituted heteroarylamine group;
• a substituted or unsubstituted arylamine group;
• a substituted or unsubstituted arylheteroarylamine group;
• a substituted or unsubstituted arylphosphine group;
• a substituted or unsubstituted phosphine oxide group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heterocyclic group, or combine with an adjacent group to form a ring,
• a is an integer of 0 to 4,
• b is an integer of 0 to 2,
• p and q are the same as or different from each other, and are each independently an integer of 0 to 5, and
• when a, b, p, and q are each 2 or more, the structures in the parenthesis are the same as or different from each other.