Heterocyclic compound and organic light emitting element comprising same

A compound represented by any one of the following Chemical Formula 2 to Chemical Formula 4:

• wherein, in Chemical Formula 2 to Chemical Formula 4,
• L is a direct bond;
• a substituted or unsubstituted arylene group;
• or a substituted or unsubstituted heteroarylene group;
• X1 to X6 are N or CH;
• at least one of X1 to X3 is N;
• at least one of X4 to X6 is N;
• and
• Z1 to Z4 are the same as or different from each other, and each independently hydrogen;
• deuterium;
• a halogen group;
• a nitrile group;
• a nitro group;
• a hydroxyl 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 alkoxy group;
• a substituted or unsubstituted heteroarylamine group;
• a substituted or unsubstituted arylamine 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.