Light emitting element, amine compound for the same, and display device including the same

An amine compound represented by Formula 1:

• in Formula 1,
• R1 to R7 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 15 carbons, 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,
• n is an integer of 1 to 3,
• Ra is a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 15 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 10 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/or forms a ring by being bonded to an adjacent group,
• L1 and L2 are each independently a direct linkage, a substituted or unsubstituted arylene group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 30 ring-forming carbon atoms,
• Ar1 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 Ar1 is not a fluorenyl group when L1 is a direct linkage,
• Ar2 and Ar3 are each independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthrenyl group, except when each of Ar2 and Ar3 includes a carbazole group as a substituent, and
• each of Ar1, Ar2, and Ar3 do not include benzophenanthrene.

A display device comprising:

• a base layer;
• a circuit layer on the base layer;
• and
• a display element layer on the circuit layer, and comprising a light emitting element, wherein the light emitting element comprises a first electrode, a second electrode on the first electrode, a light emitting layer between the first electrode and the second electrode, and a hole transport region between the first electrode and the light emitting layer, and comprising an amine compound represented by Formula 1:
• in Formula 1,
• R1 to R7 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 15 carbons, 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,
• n is an integer of 1 to 3,
• Ra is a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 15 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 10 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/or forms a ring by being bonded to an adjacent group,
• L1 and L2 are each independently a direct linkage, a substituted or unsubstituted arylene group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 30 ring-forming carbon atoms,
• Ar1 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 Ar1 is not a fluorenyl group when L1 is a direct linkage,
• Ar2 and Ar3 are each independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthrenyl group, except when each of Ar2 and Ar3 includes a carbazole group as a substituent, and
• each of Ar1, Ar2, and Ar3 do not include benzophenanthrene.