A compound of the following Chemical Formula 1: wherein, in Chemical Formula 1, R1 and R2 are the same as or different from each other, and each independently a substituted or unsubstituted alkyl group; or a substituted or unsubstituted aryl group, Ar1 and Ar2 are the same as or different from each other, and each independently a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or bond to each other to form a substituted or unsubstituted ring, L is a direct bond, or a substituted or unsubstituted arylene group, and R3 to R11 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxyl group; a carbonyl group; an ester group; an imide group; a substituted or unsubstituted amine group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylheteroarylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or bond to an adjacent group to form a substituted or unsubstituted ring, a is an integer of 0 to 6, and when a is an integer of 2 or greater, R11s are the same as or different from each other. R1 and R2 are the same as or different from each other, and each independently a substituted or unsubstituted alkyl group; or a substituted or unsubstituted aryl group, Ar1 and Ar2 are the same as or different from each other, and each independently a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or bond to each other to form a substituted or unsubstituted ring, L is a direct bond, or a substituted or unsubstituted arylene group, and R3 to R11 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxyl group; a carbonyl group; an ester group; an imide group; a substituted or unsubstituted amine group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylheteroarylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or bond to an adjacent group to form a substituted or unsubstituted ring, a is an integer of 0 to 6, and when a is an integer of 2 or greater, R11s are the same as or different from each other.