Organic light emitting device and flat panel display device comprising the same

A compound represented by the following Formula:

• where R6, R7 and R8 are each independently one selected from a group consisting of a hydrogen atom, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C4-C30 hetero ring, a substituted or unsubstituted C5-C30 polycyclic condensed ring, a hydroxy group, a cyano group, and a substituted or unsubstituted amino group, wherein two or more of R6 R7 and R8 can be optionally bound with one another to form a saturated or unsaturated carbon ring;
• Ar3 is a biphenyl group;
• each Y is independently one selected from the group consisting of a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C6-C30 aryl group, and a substituted or unsubstituted C4-C30 hetero ring;
• and
• wherein n of the Yn between the carbazole and the nitrogen is 1, and n of the Yn between the fluorene and the nitrogen is 0.