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

A compound of Formula 1 below:

• wherein,
• X is O or S,
• R1 to R3 are each independently selected from the group consisting of deuterium, tritium, halogen, a cyano group, a nitro group, 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 fused ring group of a C3-C60 aliphatic ring and 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, and a C6-C30 aryloxyl group, and at least one pair of neighboring groups of R1, R2 or R3 may be optionally linked each other to form a ring, m is an integer of 0 to 4, n and o are each an integer of 0 to 3, and a plurality of R1, R2 and R3 are each the same or different from each other when m, n and o are each an integer of 2 or more,
• L1 to L5 are each independently selected from the group consisting of a single bond, a C6-C60 arylene group, a C2-C60 heterocyclic group containing at least one heteroatom selected from O, N, S, Si, and P, a fluorenylene group, a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring, and an C1-C60 aliphatic hydrocarbon group, each of L1 to L5 except a single bond may be optionally further substituted with one or more substituents selected from the group consisting of deuterium, halogen, a silane group substituted or unsubstituted 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 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 C7-C20 arylalkyl group, and a C8-C20 arylalkenyl group,
• Ar1 to Ar4 are each independently selected from the group consisting of a C6-C60 aryl group, a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a fluorenyl group, a fused ring group of a C3-C60 aliphatic ring and 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, and a C6-C30 aryloxyl group, and at least one of Ar1 to Ar4 is the formula la below,
• in Formulas 1a,
• Y is S, O, C(Ra)(Rb) or N(Rc), wherein Ra to Rc are each independently 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 fused ring group of a C3-C60 aliphatic ring and 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, and a C6-C30 aryloxyl group, wherein Ra and Rb may be optionally linked each other to form a spiro compound together with C bonded to them,
• R4 and R5 are each independently selected from the group consisting of deuterium, tritium, halogen, a cyano group, a nitro group, 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 fused ring group of a C3-C60 aliphatic ring and 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, and a C6-C30 aryloxyl group, neighboring groups of R4 and R5 may be optionally linked each other to form a ring, p is an integer of 0 to 4, q is an integer of 0 to 3, and a plurality of R4s and R5s are each the same or different from each other when p and q are each an integer of 2 or more,
• when R1 to R5, and Ar1 to Ar4 are each the aryl group, fluorenyl group, heterocyclic group, fused ring group, alkyl group, alkenyl group, alkynyl group, alkoxyl group, or aryloxy group, they may be each optionally further substituted with one or more substituents selected from the group consisting of deuterium, halogen, a silane group substituted or unsubstituted 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 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 C7-C20 arylalkyl group, and a C8-C20 arylalkenyl group, and when these substituents are adjacent, they are linked each other to form a ring.