Heterocyclic compound and organic light-emitting device comprising same

A heterocyclic compound represented by the following chemical formula 1:

• wherein, in chemical formula 1,
• R1 to R4 are the same or different, and are each independently selected from the group consisting of:
• hydrogen;
• deuterium;
• halogen;
• a cyano group;
• a substituted or unsubstituted C1-C60 alkyl group;
• a substituted or unsubstituted C2-C60 alkenyl group;
• a substituted or unsubstituted C2-C60 alkynyl group;
• a substituted or unsubstituted C1-C60 alkoxy group;
• a substituted or unsubstituted C3-C60 cycloalkyl group;
• a substituted or unsubstituted C2-C60 heterocycloalkyl group;
• and HAr;
• the HAr is a substituted or unsubstituted C2-C60 heteroaryl group containing at least one nitrogen;
• any one of R1 to R4 is HAr;
• R5 is a substituted or unsubstituted C6-C60 aryl group;
• R6 is selected from the group consisting of:
• hydrogen;
• deuterium;
• halogen;
• a cyano group;
• a substituted or unsubstituted C1-C60 alkyl group;
• a substituted or unsubstituted C2-C60 alkenyl group;
• a substituted or unsubstituted C2-C60 alkynyl group;
• a substituted or unsubstituted C1-C60 alkoxy group;
• a substituted or unsubstituted C3-C60 cycloalkyl group;
• and a substituted or unsubstituted C2-C60 heterocycloalkyl group;
• 1 is an integer of 1-3;
• and
• m is an integer of 1-4.