Organic light emitting device

A heterocyclic compound comprising a compound represented by Formula 1:

• wherein each of R1 through R12 is independently selected from the group consisting of hydrogen atoms, heavy hydrogen atoms, substituted and unsubstituted C1-C50 alkyl groups, substituted and unsubstituted C3-C50 cycloalkyl groups, substituted and unsubstituted C1-C50 alkoxy groups, substituted and unsubstituted C5-C50 aryloxy groups, substituted and unsubstituted C5-C50 arylthio groups, substituted and unsubstituted C5-C60 aryl groups, amino groups substituted with at least one R5-R60 aryl group, substituted and unsubstituted C4-C60 heteroaryl groups, substituted and unsubstituted C6-C60 condensed polycyclic groups, halogen atoms, cyano groups, nitro groups, hydroxyl groups, and carboxyl groups, and
• wherein two or more neighboring substituents selected from R1 through R12 may optionally bond to each other to form an aromatic ring.