Patent ID: 8168307

Claim:
A compound of Formula (I): wherein Cz 1 and Cz 2 may be the same as or different from each other and each represent a carbazolyl group; Q 1 and Q 2 may be the same as or different from each other and each represent a direct bond or an arbitrary linkage group; Cz 1 , Cz 2 , Q 1 , Q 2 , Ring B 1 and Ring B 2 may optionally each be substituted, wherein Formula (I) is represented by following Formula (I-1): wherein G 1 , G 2 , G 3 , and G 4 may be the same as or different from each other and each represent a direct bond or an arbitrary linkage group; ring A 1 and Ring A 2 each represent a benzene ring which may be substituted; and Cz 1 , CZ 2 , Ring B 1 and Ring B 2 are as defined in Formula (I).