Compound and organic light-emitting device comprising same

A compound of the following Chemical Formula 1:

• wherein, in Chemical Formula 1,
• X1 and X2 are the same as or different from each other, and are each independently O or S,
• n is an integer from 1 to 4,
• when n is 2 or higher, the L101s are the same as or different from each other,
• L101 is a direct bond;
• a monocyclic arylene group that is unsubstituted or substituted with one or more selected from the group consisting of deuterium, a cyano group, an alkyl group, an alkylsilyl group, a cycloalkyl group, an aryl group, and a heterocyclic group;
• a polycyclic arylene group that is unsubstituted or substituted with one or more selected from the group consisting of deuterium, a cyano group, an alkyl group, a cycloalkyl group, an aryl group, and a heterocyclic group;
• a fluorenylene group that is unsubstituted or substituted with one or more selected from the group consisting of deuterium, a cyano group, an alkyl group, a cycloalkyl group, an aryl group, and a heterocyclic group;
• a spirobifluorenylene group that is unsubstituted or substituted with one or more selected from the group consisting of deuterium, a cyano group, an alkyl group, a cycloalkyl group, an aryl group, and a heterocyclic group;
• a divalent carbazolyl group that is unsubstituted or substituted with one or more selected from the group consisting of deuterium, a cyano group, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group;
• a divalent benzocarbazolyl group that is unsubstituted or substituted with one or more selected from the group consisting of deuterium, a cyano group, an alkyl group, a cycloalkyl group, an aryl group, and a heterocyclic group;
• or a divalent O- or S-containing heterocyclic group that is unsubstituted or substituted with one or more selected from the group consisting of deuterium, a cyano group, an alkyl group, a cycloalkyl group, an aryl group, and a heterocyclic group,
• at least one of the substituents of L101 is optionally bonded to an adjacent substituent to form one or more substituted or unsubstituted rings, and
• one of R1 to R8 and one of R10 to R17 are each linked to L101, and the others are the same as or different from each other, and are each independently hydrogen, deuterium, a hydroxyl group, a cyano group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group, and is optionally bonded to an adjacent substituent to form a substituted or unsubstituted ring.