Patent ID: 7449593

Claim:
An anthracene compound , represented by the following formula: wherein X represents a substituted or unsubsituted aryl group having 6 to 20 carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 20 carbon atoms, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms; R 2 represent hydrogen, halogen, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, R 1 represents the fluorine, the chlorine, or the bromine, R 1 and R 2 can be the same or not the same; and each R 3 , R 4 , and R 5 represent a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, or a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, R 3 , R 4 , and R 5 can be the same or not the same.