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

An amine compound represented by Formula 1:

• wherein, in Formula 1,
• X is O or S,
• R1 to R20 are each independently hydrogen, deuterium, a halogen, a substituted or unsubstituted alkyl group having 1 to 10 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 are independently bonded to an adjacent group to form a ring,
• L1 is 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,
• L2 is a substituted or unsubstituted arylene group having 6 to 30 ring-forming carbon atoms,
• n is an integer of 1 to 7, and
• Ra is hydrogen, deuterium, or a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms.

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, an emission layer between the first electrode and the second electrode, and a hole transport region between the first electrode and the emission layer and comprising an amine compound represented by Formula 1:
• in Formula 1,
• X being O or S,
• R1 to R20 being each independently hydrogen, deuterium, a halogen, a substituted or unsubstituted alkyl group having 1 to 10 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 being independently bonded to an adjacent group to form a ring,
• L1 being 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,
• L2 being a substituted or unsubstituted arylene group having 6 to 30 ring-forming carbon atoms,
• n being an integer of 1 to 7, and
• Ra being hydrogen, deuterium, or a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms.