Compound and organic light emitting diode comprising same

A compound of Formula 1:

• wherein in Formula 1;
• X1 is NR, O, SiR′R″, S, or CR5R6,
• R1 to R4 are each independently hydrogen;
• deuterium;
• a halogen group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted cycloalkyl group;
• a substituted or unsubstituted amine group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heterocyclic group, or are each independently bonded to an adjacent group to form a substituted or unsubstituted ring,
• R, R′, and R″ are each independently a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heterocyclic group, or are each independently bonded to an adjacent group to form a substituted or unsubstituted ring,
• R5 and R6 are each independently a substituted or unsubstituted aryl group, or are each independently bonded to an adjacent group to form a substituted or unsubstituted ring,
• a and c are each independently an integer from 0 to 4,
• b is an integer from 0 to 3,
• d is an integer from 0 to 5,
• wherein when a to d are each independently an integer of 2 or higher, substituents in parentheses are the same as or different from each other, and
• wherein X1 is SiR′R″, or when X1 is NR, O, S, or CR5R6, R1 to R6 and R are bonded to an adjacent group to form a substituted or unsubstituted ring comprising Si.