A compound represented by Chemical Formula 1: wherein, X 1 and X 2 are each independently O, S, Se, or Te, Y 1 and Y 2 are each independently O, S, Se, Te, or C 2, Ar is a substituted or unsubstituted C6 to C30 aromatic ring, a substituted or unsubstituted C3 to C30 heteroaromatic ring, or a combination thereof, L 1 and L 2 independently comprise at least one of the substituted or unsubstituted groups listed in Group 1: wherein, Z 1 and Z 2 are each independently O, S, Se, Te, NR a, or SiR b R c, Z 3 to Z 6 are each independently N or CR d, at least one of Z 3 to Z 6 is N, wherein R a to R d are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C3 to C30 heteroaryl group, a substituted or unsubstituted amine group, a substituted or unsubstituted silyl group, a halogen, or a combination thereof, wherein R b and R c are each independently present or linked with each other to form a ring, and * is a linking point. R 1 is -NR 2 R 3, wherein R 2 and R 3 are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C3 to C30 heteroaryl group, a substituted or unsubstituted silyl group, a halogen, or a combination thereof, wherein R 2 and R 3 are each independently present or linked with each other to form a ring, R 4 is represented by -NR 5 R 6, R 5 and R 6 are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C3 to C30 heteroaryl group, a substituted or unsubstituted silyl group, a halogen, or a combination thereof, wherein R 5 and R 6 are each independently present or linked with each other to form a ring, and n is 0 or 1. X 1 and X 2 are each independently O, S, Se, or Te, Y 1 and Y 2 are each independently O, S, Se, Te, or C 2, Ar is a substituted or unsubstituted C6 to C30 aromatic ring, a substituted or unsubstituted C3 to C30 heteroaromatic ring, or a combination thereof, L 1 and L 2 independently comprise at least one of the substituted or unsubstituted groups listed in Group 1: Z 1 and Z 2 are each independently O, S, Se, Te, NR a, or SiR b R c, Z 3 to Z 6 are each independently N or CR d, at least one of Z 3 to Z 6 is N, wherein R a to R d are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C3 to C30 heteroaryl group, a substituted or unsubstituted amine group, a substituted or unsubstituted silyl group, a halogen, or a combination thereof, wherein R b and R c are each independently present or linked with each other to form a ring, and * is a linking point. R 1 is -NR 2 R 3, wherein R 2 and R 3 are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C3 to C30 heteroaryl group, a substituted or unsubstituted silyl group, a halogen, or a combination thereof, wherein R 2 and R 3 are each independently present or linked with each other to form a ring, R 4 is represented by -NR 5 R 6, R 5 and R 6 are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C3 to C30 heteroaryl group, a substituted or unsubstituted silyl group, a halogen, or a combination thereof, wherein R 5 and R 6 are each independently present or linked with each other to form a ring, and n is 0 or 1.