Compound for organic electric element, organic electric element comprising the same, and electronic device thereof

An organic electric element comprising an anode, a cathode, and an organic material layer formed between the anode and the cathode,

• wherein the organic material layer comprises a hole transport layer, an emission-auxiliary layer, a light emitting layer and an electron transport layer sequentially formed, and the emission-auxiliary layer is located between the hole transport layer and the emitting layer, and
• wherein the emission-auxiliary layer comprises a compound represented by one of Formulas 7, 10, 12 and 13:
• wherein:
• Ar1 to Ar4 are each independently selected from the group consisting of a C6-C30 aryl group, a fluorenyl group, a C2-C30 heterocyclic group containing at least one heteroatom of O, N, S, Si, and P, Formula A-1 and Formula A-2, and at least one of Ar1 to Ar4 is Formula A-1 or Formula A-2:
• X1 is O or S,
• X2 is O or S,
• R1 to R6 are each independently hydrogen or deuterium, or adjacent groups together may be bonded to each other to form a benzene ring,
• n, p′ and r′ are each an integer of 0 to 3, m, o, p, q and r are each an integer of 0 to 4, and where they are each an integer of 2 to 4, each of R1s, each of R2s, each of R3s, each of R4s, each of R5s, or each of Res is the same or different from each other,
• L1 to L3 are each a single bond, and
• either at least one of R1 to R6 forms a benzene ring with an adjacent group, or at least one of Ar1 to Ar4 other than Formula A-1 or A-2 is a fluorenyl group or a C2-C30 heterocyclic group containing O or S, and
• Ar1 to Ar4 and the benzene ring formed by adjacent groups may be each optionally substituted with one or more substituents selected from the group consisting of deuterium a C1-C20 alkyl group, a C6-C20 aryl group, a fluorenyl group, a C2-C20 heterocyclic group containing at least one heteroatom of O, N, S, Si, and P, and a C3-C20 aliphatic ring group.