Novel heterocyclic compound and organic light emitting device comprising the same

A compound represented by the following Chemical Formula 1, Chemical Formula 2, or Chemical Formula 3:

• in Chemical Formulas 1 to 3,
• each X is independently N, or CH,
• L1 is a single bond;
• or a substituted or unsubstituted C6-60 arylene,
• Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl;
• or a substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of N, O, S and Si,
• R are identical to each other and are represented by -L2-Ar3,
• L2 is a single bond;
• a substituted or unsubstituted C6-60 arylene;
• or a substituted or unsubstituted C2-60 heteroarylene containing at least one heteroatom selected from the group consisting of N, O, S and Si,
• Ar3 is a substituted or unsubstituted C6-60 aryl;
• or a substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of N, O, S and Si,
• provided that R is not an unsubstituted phenyl.