Light emitting element and fused polycyclic compound for the light emitting element

A light emitting element, comprising:

• a first electrode;
• a second electrode on the first electrode;
• and
• at least one functional layer between the first electrode and the second electrode and comprising a fused polycyclic compound represented by Formula 1:
• wherein, in Formula 1,
• X and Y are each independently O, S, or a substituent represented by Formula 2,
• A1 is hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted amine group, an unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms,
• A2 to A5 are each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms,
• Z1 to Z6 are each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, or a substituent represented by Formula 3,
• at least one selected from among Z1 to Z6 is a cyano group, or a substituent represented by a Formula 3,
• when each of X and Y is O, the case where each of Z4 and Z5 is hydrogen is excluded, and
• the case where the fused polycyclic compound represented by Formula 1 comprises an adamantyl group is excluded,
• wherein, in Formula 2,
• R1 to R5 are each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms,
• when each of R1 to R5 is a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, the case where the heteroaryl group contains nitrogen as a ring-forming atom is excluded, and
• wherein, in Formula 1, when any one selected from among Z4 and Z5 is a cyano group or a substituted or unsubstituted pyridine group, at least one selected from among R1 to R5 in Formula 2 is a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, and
• -* is a position linked to Formula 1,
• wherein, in Formula 3,
• at least one selected from among Za to Zc is N, and the rest are CRd,
• Ra to Rd are each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, and
• at least one selected from among Ra to Rd is a position linked to Formula 1.