Compound for organic electronic element, organic electronic element using the same, and an electronic device thereof

A compound of Formula 1:

• Wherein,
• X1 and X2 are each independently O or S, provided that X1 and X2 are different from each other,
• Ar1 to Ar3 are each independently selected from the group consisting of a C6-C60 aryl group, a fluorenyl group, a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a C3-C60 aliphatic ring, a fused ring group formed by a C3-C60 aliphatic ring with a C6-C60 aromatic ring, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C30 alkoxyl group, a C6-C30 aryloxy group and -L′-N(Ra)(Rb),
• R1 to R4 are each independently selected from the group consisting of hydrogen, deuterium, halogen, a C6-C60 aryl group, a fluorenyl group, a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a C3-C60 aliphatic ring, a fused ring group formed by a C3-C60 aliphatic ring with a C6-C60 aromatic ring, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C30 alkoxyl group, a C6-C30 aryloxy group and -L′-N(Ra)(Rb), and adjacent groups may be optionally linked to each other to form a C6-C60 aromatic ring, a C2-C60 heterocyclic group, a C3-C60 aliphatic ring, or a fused ring group formed by a C3-C60 aliphatic ring with a C6-C60 aromatic ring,
• a to d are each an integer of 0 to 3, where each of these is an integer of 2 or more, each of R1s, each of R2s, each of R3s or each of R4s is the same or different from each other,
• L′ is selected from the group consisting of a single bond, a C6-C60 arylene group, a fluorenylene group, a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a C3-C60 aliphatic ring and a fused ring group formed by a C3-C60 aliphatic ring with a C6-C60 aromatic ring,
• Ra and Rb are each independently selected from the group consisting of hydrogen, a C6-C60 aryl group, a fluorenyl group, a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a C3-C60 aliphatic ring and a fused ring group formed by a C3-C60 aliphatic ring with a C6-C60 aromatic ring,
• Ar1 to Ar3, R1 to R4, L′, Ra, Rb, and a ring formed by bonding neighboring groups of R1 to R4 to each other may be each further substituted with one or more substituents selected from the group consisting of deuterium, halogen, a silane group unsubstituted or substituted with a C1-C20 alkyl group or a C6-C20 aryl group, a siloxane group, a boron group, a germanium group, a cyano group, a nitro group, a phosphine oxide group unsubstituted or substituted with a C1-C20 alkyl group or a C6-C20 aryl group, a C1-C20 alkylthio group, a C1-C20 alkoxyl group, a C1-C20 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C6-C20 aryl group, a C6-C20 aryl group substituted with deuterium, a fluorenyl group, a C2-C20 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a C3-C20 cycloalkyl group, a fused ring group formed by a C3-C60 aliphatic ring with a C6-C60 aromatic ring, a C7-C20 arylalkyl group, and a C8-C20 arylalkenyl group.