Polycyclic compound and organic light emitting element comprising same

A compound represented by the following Chemical Formula 1:

• in Chemical Formula 1,
• R1 and R2 are the same as or different from each other, and are each independently an aryl group,
• R3 to R8 are the same as or different from each other, and are each independently hydrogen;
• deuterium;
• a nitrile group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted cycloalkyl group;
• a substituted or unsubstituted alkoxy group;
• a substituted or unsubstituted aryloxy group;
• a substituted or unsubstituted alkenyl group;
• a substituted or unsubstituted silyl group;
• a substituted or unsubstituted amine group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heteroaryl group,
• L1 and L2 are the same as or different from each other, and are each independently a single bond;
• a substituted or unsubstituted arylene group;
• or a substituted or unsubstituted heteroarylene group, and
• A and B are the same as or different from each other, and are each independently a substituted or unsubstituted aryl group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted amine group;
• a substituted or unsubstituted heteroaryl group;
• a substituted or unsubstituted silyl group;
• or a substituted or unsubstituted phosphine oxide group.