Organic electronic device comprising a plurality of light-emitting auxiliary layers and electronic apparatus thereof

1:

• An organic electronic device comprising:
• a first electrode;
• a second electrode;
• a light-emitting layer disposed between the first electrode and the second electrode;
• a hole transport layer between the first electrode and the light-emitting layer;
• and
• a plurality of light-emitting auxiliary layers positioned between the light-emitting layer and the hole transport layer, the plurality of light-emitting auxiliary layers comprising:
• a first light-emitting auxiliary layer adjacent to the hole transport layer, the first light-emitting auxiliary layer comprising a compound represented by Formula 1;
• and
• a second light-emitting auxiliary layer adjacent to the light-emitting layer, the second light-emitting auxiliary layer comprising a compound represented by Formula 2:
• wherein:
• a A ring and a B ring are each independently a C6-C60 aryl ring, wherein the A ring may be substituted with one or more R1s, which may be the same or different, and the B ring may be substituted with one or more R2s, which may be the same or different,
• Ra, Rb, R1 and R2 are each independently selected from the group consisting of hydrogen, deuterium, 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 of O, N, S, Si and P, a C3-C60 aliphatic ring group, a C1-C20 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C20 alkoxyl group, a C6-C60 aryloxy group, and -L′-N(Ra)(Rb), and adjacent Ra and Rb may be bonded to each other to form a ring,
• L1 to L6 are each independently selected from the group consisting of a single bond, a C6-C60 arylene group, a fluorenylene group, a C3-C60 aliphatic ring group, and a C2-C60 heterocyclic group containing at least one heteroatom of O, N, S, Si and P,
• Ar1 to Ar5 are each independently selected from the group consisting of a C6-C60 aryl group, a fluorenyl group, a C3-C60 aliphatic ring group, a C2-C60 heterocyclic group containing at least one heteroatom of O, N, S, Si and P, a C1-C20 alkyl group, and -L′-N(Ra)(Rb),
• L′ is selected from the group consisting of a single bond, a C6-C30 arylene group, a fluorenylene group, a C2-C30 heterocyclic group containing at least one heteroatom of O, N, S, Si and P, and a C3-C30 aliphatic ring group,
• Ra and Rb 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, and a C3-C30 aliphatic ring group, and
• the aryl group, the arylene group, the fluorenyl group, the fluorenylene group, the heterocyclic group, the aliphatic ring group, the alkyl group, the alkenyl group, the alkynyl group, the alkoxyl group, the aryloxyl group, and the ring formed by adjacent groups may be each 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 phosphine oxide substituted or unsubstituted with a C1-C20 alkyl group or a C6-C20 aryl group, siloxane group, a cyano group, a nitro group, C1-C20 alkylthio group, C1-C20 alkoxy group, C6-C30 aryloxy group, C6-C30 arylthio group, a C1-C20 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C6-C30 aryl group, a fluorenyl group, a C2-C30 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C30 aliphatic ring group, and -L′-N(Ra)(Rb).