Patent ID: 8828559

Claim:
A heterocyclic compound represented by Formula 1A below: wherein, in Formula 1A, R 1 to R 13 are each independently one of a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, a carboxyl group, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 3 -C 30 cycloalkyl group, a substituted or unsubstituted C 3 -C 30 cycloalkenyl group, a substituted or unsubstituted C 5 -C 30 aryl group, a substituted or unsubstituted C 2 -C 30 heteroaryl group, a substituted or unsubstituted C 5 -C 30 aryloxy group, a substituted or unsubstituted C 5 -C 30 arylthio group, a —N(Q 1 )(Q 2 ) group, and a group represented by Formula 1B below, wherein Q 1 and Q 2 are each independently one of a hydrogen atom, a deuterium atom, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 3 -C 30 cycloalkyl group, a substituted or unsubstituted C 3 -C 30 cycloalkenyl group, a substituted or unsubstituted C 6 -C 30 aryl group, a substituted or unsubstituted C 6 -C 30 aryloxy group, a substituted or unsubstituted C 6 -C 30 arylthio group, and a substituted or unsubstituted C 3 -C 30 heteroaryl group: wherein, in Formula 1B, R 14 and R 15 are each independently one of a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, a carboxyl group, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 3 -C 30 cycloalkyl group, a substituted or unsubstituted C 3 -C 30 cycloalkenyl group, a substituted or unsubstituted C 5 -C 30 aryl group, a substituted or unsubstituted C 2 -C 30 heteroaryl group, a substituted or unsubstituted C 5 -C 30 aryloxy group, and a substituted or unsubstituted C 5 -C 30 arylthio group; at least one of R 1 to R 13 is a group represented by Formula 1B above; Ar 1 and Ar 2 are each independently a substituted or unsubstituted C 5 -C 30 aryl group or a substituted or unsubstituted C 3 -C 30 heteroaryl group, wherein Ar 1 and Ar 2 are optionally linked to each other; A and B are a divalent linker, and are each independently one of a substituted or unsubstituted C 5 -C 30 arylene group or a substituted or unsubstituted C 3 -C 30 heteroarylene group; and a is an integer from 0 to 3, and b is an integer from 0 to 3, wherein if a is 2 or greater, the two or more A are identical to or different from each other, and if b is 2 or greater, the two or more B are identical to or different from each other.