Organic electroluminescence device and polycyclic compound for organic electroluminescence device

An organic electroluminescence device, comprising:

• a first electrode;
• a hole transport region on the first electrode;
• an emission layer on the hole transport region;
• an electron transport region on the emission layer;
• and
• a second electrode on the electron transport region,
• wherein the emission layer comprises a polycyclic compound represented by following Formula 1:
• wherein in Formula 1,
• X1 and X2 are each independently a direct linkage, CR7R8, SiR9R10, O, or S,
• L is a direct linkage, CO, SO2, SiR11R12, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group having 2 to 30 carbon atoms for forming a ring,
• R1 to R4 are each independently a hydrogen atom, a deuterium atom, a halogen atom, NR13R14, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring;
• R1 to R4 are each optionally independently combined with an adjacent group to form a ring,
• a, b, c and d are each independently an integer of 0 to 4,
• R5 to R14 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted amino group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring;
• R5 to R14 are each optionally independently combined with an adjacent group to form a ring, and
• e and f are each independently an integer of 0 to 3.

A polycyclic compound represented by following Formula 1:

• wherein in Formula 1,
• X1 and X2 are each independently a direct linkage, CR7R8, SiR9R10, O, or S,
• L is a direct linkage, CO, SO2, SiR11R12, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group having 2 to 30 carbon atoms for forming a ring,
• R1 to R4 are each independently a hydrogen atom, a deuterium atom, a halogen atom, NR13R14, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring;
• R1 to R4 are each optionally independently combined with an adjacent group to form a ring,
• a, b, c and d are each independently an integer of 0 to 4,
• R5 to R14 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted amino group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring;
• R5 to R14 are each optionally independently combined with an adjacent group to form a ring, and
• e and f are each independently an integer of 0 to 3.