Organic optoelectronic device and display device

An organic optoelectronic device, comprising:

• an anode and a cathode facing each other,
• a light emitting layer between the anode and the cathode,
• a hole transport layer between the anode and the light emitting layer, and
• a hole transport auxiliary layer between the light emitting layer and the hole transport layer,
• wherein the light emitting layer includes a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2, and
• the hole transport auxiliary layer includes a third compound represented by Chemical Formula 3:
• wherein, in Chemical Formula 1,
• A is a substituted or unsubstituted benzene ring or a substituted or unsubstituted indole ring,
• X1 is C or N,
• L1 is a single bond or a substituted or unsubstituted C6 to C20 arylene group,
• R1 to R3 are each independently hydrogen, deuterium, a cyano group, a halogen, a substituted or unsubstituted amine group, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C2 to C30 heterocyclic group,
• m1 is an integer of 1 to 3,
• m2 is an integer of 1 to 4,
• m3 is an integer of 1 or 2,
• when m1 is 2 or 3, each R1 is the same or different from each other,
• when m2 is 2, 3, or 4, each R2 is the same or different from each other,
• when m3 is 2, each R3 is the same or different from each other, and
• Ar11 is a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, or an amine group represented by Chemical Formula a,
• wherein, in Chemical Formula a,
• L2 and L3 are each independently a single bond or a substituted or unsubstituted C6 to C20 arylene group,
• Ar1 and Ar2 are each independently a substituted or unsubstituted C6 to C20 aryl group or a substituted or unsubstituted C2 to C30 heterocyclic group;
• wherein, in Chemical Formula 2,
• Z1 to Z6 are each independently N or C-La-Ra, provided that at least two of Z1 to Z6 are N,
• each La is independently a single bond, a substituted or unsubstituted C6 to C20 arylene group, a substituted or unsubstituted C2 to C20 heterocyclic group, or a combination thereof,
• each Ra is independently hydrogen, deuterium, a cyano group, a halogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C2 to C30 heterocyclic group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, or a combination thereof, and
• each Ra is separately present or adjacent groups thereof are linked to each other to form a substituted or unsubstituted aliphatic monocyclic or polycyclic ring, a substituted or unsubstituted aromatic monocyclic or polycyclic ring, or a substituted or unsubstituted heteroaromatic monocyclic or polycyclic ring;
• wherein, in Chemical Formula 3,
• Ar3 and Ar4 are each independently a substituted or unsubstituted C6 to C30 aryl group or a substituted or unsubstituted C2 to C30 heterocyclic group,
• Ar5 and Ar6 are each independently a substituted or unsubstituted C1 to C30 alkyl group or a substituted or unsubstituted C6 to C30 aryl group,
• R4 to R8 are each independently hydrogen, deuterium, a cyano group, a halogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C2 to C30 heterocyclic group,
• m4 is an integer of 1 to 3, and
• when m4 is 2 or 3, each R4 is the same or different from each other.