A compound represented by the following Chemical Formula 1: wherein, in Chemical Formula 1, L 1 and L 2 are the same as or different from each other, and each independently a direct bond; a substituted or unsubstituted arylene group; or a substituted or unsubstituted heteroarylene group; L 3 and L 4 are the same as or different from each other, and each independently a direct bond; or a substituted or unsubstituted alkylene group; L 5 is a direct bond; or a substituted or unsubstituted arylene group; R 1 to R 6 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a nitrile group; a silyl group; a boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylheteroarylamine group; or a substituted or unsubstituted heteroaryl group; Ar 1 is hydrogen; a substituted or unsubstituted aryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylheteroarylamine group; or a substituted or unsubstituted heteroaryl group; X 1 and X 2 are the same as or different from each other, and each independently a functional group crosslinkable by heat or light; n 1 and n 2 are each an integer of 0 to 12; m 1 and m 2 are each an integer of 0 to 5; m 3 and m 6 are each an integer of 0 to 4; and m 4 and m 5 are each an integer of 0 to 3. L 1 and L 2 are the same as or different from each other, and each independently a direct bond; a substituted or unsubstituted arylene group; or a substituted or unsubstituted heteroarylene group; L 3 and L 4 are the same as or different from each other, and each independently a direct bond; or a substituted or unsubstituted alkylene group; L 5 is a direct bond; or a substituted or unsubstituted arylene group; R 1 to R 6 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a nitrile group; a silyl group; a boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylheteroarylamine group; or a substituted or unsubstituted heteroaryl group; Ar 1 is hydrogen; a substituted or unsubstituted aryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylheteroarylamine group; or a substituted or unsubstituted heteroaryl group; X 1 and X 2 are the same as or different from each other, and each independently a functional group crosslinkable by heat or light; n 1 and n 2 are each an integer of 0 to 12; m 1 and m 2 are each an integer of 0 to 5; m 3 and m 6 are each an integer of 0 to 4; and m 4 and m 5 are each an integer of 0 to 3.