Patent ID: 8889267

Claim:
A heterocyclic compound comprising a compound represented by Formula 1 or Formula 2 below: wherein: each of X 1 and X 2 is independently selected from the group consisting of substituted and unsubstituted C 6 -C 60 aryl groups, and substituted and unsubstituted C 3 -C 60 heteroaryl groups, each of R 3 -R 5 , R 7 -R 10 , R 13 -R 15 , and R 17 -R 20 is independently selected from the group consisting of hydrogen atoms, heavy hydrogen atoms, substituted and unsubstituted C 1 -C 50 alkyl groups, substituted and unsubstituted C 3 -C 50 cycloalkyl groups, substituted and unsubstituted C 1 -C 50 alkoxy groups, substituted and unsubstituted C 6 -C 50 aryloxy groups, substituted and unsubstituted C 6 -C 50 arylthio groups, substituted and unsubstituted C 6 -C 60 aryl groups, amino groups substituted with at least one C 6 -C 60 aryl group, substituted and unsubstituted C 3 -C 60 heteroaryl groups, substituted and unsubstituted C 6 -C 60 condensed polycyclic groups, halogen atoms, nitro groups, cyano groups, hydroxyl groups, and carboxyl groups, each of R 1 , R 2 , R 11 and R 12 is independently a methyl group or a phenyl group, and each of R 6 and R 16 is independently selected from the group consisting of substituted and unsubstituted C 6 -C 60 aryl groups, amino groups substituted with at least one C 6 -C 60 aryl group, and substituted and unsubstituted C 3 -C 60 heteroaryl groups, wherein two or more neighboring substituents selected from R 3 -R 5 , R 7 -R 10 , R 13 -R 15 , and R 17 -R 20 may optionally combine to form an aromatic ring.