Compound and organic light-emitting device comprising same

A compound of the following Chemical Formula 1:

• wherein, in Chemical Formula 1,
• X1 is O or S,
• L1 is a single bond;
• a substituted or unsubstituted arylene group;
• or a substituted or unsubstituted polycyclic divalent heterocyclic group,
• any one of R1 to R8 is bonded to L1, the others are the same as or different from each other, and are each independently hydrogen, deuterium, a substituted or unsubstituted silyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, and optionally, one of the others is fused with L1 to form a substituted or unsubstituted hydrocarbon ring, or optionally is fused with an adjacent group to form a substituted or unsubstituted hydrocarbon ring,
• m is an integer from 0 to 3, and when m is 2 or higher, L1's in the parenthesis are the same as or different from each other,
• x is an integer from 1 to 3, and when x is 2 or higher, structures in the parenthesis are the same as or different from each other,
• y is an integer from 1 to 3, and when y is 2 or higher, Ar1's in the parenthesis are the same as or different from each other, and
• Ar1 is a substituted or unsubstituted chrysenyl group, a substituent of the following Chemical Formula A, or a substituent of the following Chemical Formula B,
• in Chemical Formulae A and B,
• any one of R101 to R112 is bonded to L1, and the others are the same as or different from each other, and are each independently hydrogen, deuterium, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group.