Patent ID: 7846558

Claim:
A blue light-emitting compound of Formula 1: wherein A 1 to A 4 are each independently a C 6 -C 20 aryl group which is unsubstituted or substituted with a group selected from the group consisting of C 1 -C 10 alkyl, C 1 -C 10 alkoxy, cyano, C 1 -C 10 alkylamino, C 1 -C 10 alkylsilyl, halogen, C 6 -C 10 aryl, C 6 -C 10 aryloxy, C 6 -C 10 arylamino, C 6 -C 10 arylsilyl and hydrogen, or a C 4 -C 19 heteroaryl group containing at least one heteroatom selected from N, S and O atoms; if n is 0, the substituents of A1 and A2 include at least one cyano group and at least one alkylsilyl or arylsilyl group; and if n is 1, the substituents of A1 to A4 include at least one cyano group and at least one alkylsilyl or arylsilyl group.