Arylamine compound and organic light- emitting device comprising same

An arylamine compound represented by Formula 1 below:

• wherein, in Formula 1,
• X is a substituted or unsubstituted C6-C60 arylene group, a substituted or unsubstituted C2-C60 heteroarylene group, a substituted or unsubstituted C6-C60 polycyclic group, or a divalent linking group including at least two of one or more of the following groups linked together:
• arylene groups, heteroarylene groups, or polycyclic groups;
• R1 and R2 are each independently a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C3-C60 cycloalkyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C2-C60 heteroaryl group, a substituted or unsubstituted C6-C60 polycyclic group, or a cyano group;
• and
• Ar1 and Ar2 are each independently a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C2-C60 heteroaryl group, or a substituted or unsubstituted C6-C60 polycyclic group.