Organic light emitting compound and organic light emitting device including same

An organic light emitting compound represented by Formula I below:

• wherein, A1 to A2 are the same as or different from each other, and are each independently any one selected from among those represented by Structural Formula 2 to Structural Formula 6 below:
• wherein,
• X is O or S,
• Y1 to Y4 are the same as or different from each other, and each independently represents N or CR5, and
• R1 to R4 and the R5 are the same as or different from each other, and are each independently selected from hydrogen, deuterium, a halogen group, a cyano group, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 halogenated alkyl group, a substituted or unsubstituted C1 to C20 halogenated alkoxy group, a substituted or unsubstituted C6 to C30 aryl group, and a substituted or unsubstituted C3 to C30 heteroaryl group.