Patent ID: 8188315

Claim:
A compound represented by the following Formula: where R 6 , R 7 and R 8 are each independently one selected from a group consisting of a hydrogen atom, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 1 -C 30 alkoxy 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 4 -C 30 hetero ring, a substituted or unsubstituted C 5 -C 30 polycyclic condensed ring, a hydroxy group, a cyano group, and a substituted or unsubstituted amino group, wherein two or more of R 6 R 7 and R 8 can be optionally bound with one another to form a saturated or unsaturated carbon ring; Ar 3 is a biphenyl group; each Y is independently one selected from the group consisting of a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 6 -C 30 aryl group, and a substituted or unsubstituted C 4 -C 30 hetero ring; and wherein n of the Y n between the carbazole and the nitrogen is 1, and n of the Y n between the fluorene and the nitrogen is 0.