Patent ID: 7794858

Claim:
A phenylphenoxazine- or phenylphenothiazine-based compound as represented by Formula 1: wherein R 1 through R 9 are identical to or different from each other, and are each independently hydrogen, a halogen, a cyano group, a hydroxyl group, a substituted or unsubstituted C 1 -C 20 alkyl group, a substituted or unsubstituted C 3 -C 20 cycloalkyl group, a substituted or unsubstituted C 5 -C 30 heterocycloalkyl group, a substituted or unsubstituted C 1 -C 20 alkoxy group, a substituted or unsubstituted C 6 -C 30 aryl group, a substituted or unsubstituted C 6 -C 30 aralkyl group, or a substituted or unsubstituted C 2 -C 30 heteroaryl group; X is O or S; and Ar 1 and Ar 2 are identical to or different from each other, and are each independently a substituted or unsubstituted C 6 -C 30 aryl group, or a substituted or unsubstituted C 2 -C 30 heteroaryl group.