Compound and organic light-emitting device comprising same

A compound represented by the following Chemical Formula 1:

• in Chemical Formula 1,
• Ar1 and Ar2 are the same as or different from each other, and are each independently a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heterocyclic group, and
• L1 is represented by any one of the following Chemical Formulae 2 to 5,
• in Chemical Formulae 2 to 5,
• a dotted line “” is each a moiety bonded to a triazine group or L2 of Chemical Formula 1,
• S1 to S4 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a halogen group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heterocyclic group,
• p and q are the same as or different from each other, and are each independently an integer of 0 to 6,
• r is an integer of 0 to 8,
• y is an integer of 0 to 4,
• when p, q, r, and y are each an integer of 2 or more, a plurality of S1 to S4 are each the same as or different from each other,
• L2 is a direct bond;
• or a substituted or unsubstituted arylene group,
• Ar3 is represented by a substituted or unsubstituted aryl group;
• a substituted or unsubstituted heterocyclic group including S or O;
• a substituted or unsubstituted carbazole group;
• or any one of the following Chemical Formulae 6 to 10, when L1 is Chemical Formulae 2 to 4,
• Ar3 is represented by a substituted or unsubstituted aryl group;
• a substituted or unsubstituted heterocyclic group including S or O;
• or any one of the following Chemical Formulae 6 to 10, when L1 is Chemical Formula 5,
• in Chemical Formulae 6 to 10,
• X1 is O, S, or NR,
• at least two of X2 to X6 are N, and the others are each independently CR′,
• R and R′ are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a halogen group;
• a substituted or unsubstituted alkyl group;
• or a substituted or unsubstituted aryl group,
• R1 to R6, R9, and R10 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a halogen group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heterocyclic group,
• at least one of Y1 to Y4 is N, and the others are CR″,
• R″ is each independently hydrogen or deuterium,
• R7 and R8 are directly bonded or combine with each other to form a substituted or unsubstituted ring,
• m, n, t, u, v, and x are each an integer of 0 to 4, w is an integer of 0 to 3, and when m, n, t, u, v, w, and x are each an integer of 2 or more, a plurality of R1 to R6, R9, and R10 are each the same as or different from each other,
• s is an integer of 0 to 2, and when s is 2, two R3s are the same as or different from each other, and
• “” means a moiety bonded to L2 of Chemical Formula 1, and the bonding moiety of Chemical Formula 10 is bonded to a ring formed by bonding R6, R9, R10 or R7, and R8.