Compound for capping layer and organic light emitting device including same

A compound for a capping layer, the compound being represented by Formula 1 below:

• wherein in Formula 1,
• Ar is any one selected from substituted or unsubstituted C3-C50 aryl groups or substituted or unsubstituted C2-C50 heteroaryl groups excluding carbazole groups,
• L1 through L3 are each independently substituted or unsubstituted —C(X1)NR4-, substituted or unsubstituted —NR5C(X2)-, or substituted or unsubstituted —NR—,
• X1 and X2 are each independently O, S, Se, Te, NR6, or CR7R8,
• R1 through R8 are each independently hydrogen, deuterium, halogen, a nitro group, a nitrile group, a hydroxyl group, a thiol group, a substituted or unsubstituted amino group, a substituted or unsubstituted C1-C50 alkyl group, a substituted or unsubstituted C2-C5-alkenyl group, a substituted or unsubstituted C1-C50 alkoxy group, a substituted or unsubstituted C1-C50 carbonyl group, a substituted or unsubstituted C1-C50 sulfide group, a substituted or unsubstituted silyl group, a substituted or unsubstituted C3-C50 cycloalkyl group, a substituted or unsubstituted C3-C50 cycloalkenyl group, a substituted or unsubstituted C1-C50 heterocycloalkyl group, a substituted or unsubstituted C3-C50 aryl group, or a substituted or unsubstituted C2-C50 heteroaryl group,
• R is hydrogen, deuterium, halogen, a nitro group, a nitrile group, a hydroxyl group, a thiol group, a substituted or unsubstituted amino group, a substituted or unsubstituted C1-C50 alkyl group, a substituted or unsubstituted C2-C50 alkenyl group, a substituted or unsubstituted C1-C50 alkoxy group, a substituted or unsubstituted C1-C50 sulfide group, a substituted or unsubstituted silyl group, a substituted or unsubstituted C3-C50 cycloalkyl group, or a substituted or unsubstituted C1-C50 heterocycloalkyl group,
• R and R1 through R8 adjacent to each other are joined together to form or not to form a ring, and
• l is an integer from 1 to 6.