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US 2022/0064100 A1Published application
Compound for organic electronic device, organic electronic device using same, and electronic apparatus thereof
AssigneeDuk San Neolux Co., Ltd.
InventorsMun Jae LEE, Soung Yun MUN, Jae Taek KWON, Dae Sung KIM, Moo Jin PARK, Chi Hyun PARK, Sun Hee LEE, Hyun Ju SONG, Bum Sung LEE
Life of this patent
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Abstract
Provided are an organic electric element comprising as a phosphorescent host material, a mixture of the compounds of Formula (1) and Formula (2), and an organic electronic device or apparatus thereof for achieving a high luminous efficiency, a low driving voltage, and an improved lifespan.
Claims20
An organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode,
- wherein the organic material layer comprises an emitting layer, and the emitting layer is a phosphorescent light emitting layer comprising a first host compound represented by Formula (1) and a second host compound represented by Formula (2):
- wherein:
- 1) Ar1, Ar2, Ar3 and Ar4 are each independently selected from the group consisting of a C6-C60 aryl group;
- a fluorenyl group;
- a C2-C60 heterocyclic group including at least one hetero atom of O, N, S, Si or 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;
- a C6-C30 aryloxy group;
- 2) c and e are each independently integers of 0 to 10, d is an integer of 0 to 2, and R3, R4 and R5 are, being the same or different from each other, each independently selected from the group consisting of deuterium;
- halogen;
- a C6-C60 aryl group;
- a fluorenyl group;
- a C2-C60 heterocyclic group including at least one heteroatom 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;
- a C6-C30 aryloxy group;
- and -L′—N(Ra)(Rb) (wherein L′ is selected from the group consisting of a single bond;
- a C6-C60 arylene group;
- a fluorenylene group;
- a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
- and a C2-C60 heterocyclic, and Ra and Rb are independently selected from the group consisting of a C6-C60 aryl group;
- a fluorenyl group;
- a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
- and a C2-C60 heterocyclic group containing at least one hetero atom of O, N, S, Si, and P), wherein in case c and e are 2 or more, R3, R4 and R5 are each in plural being the same or different and a plurality of R3 or a plurality of R4 or a plurality of R5 combine to each other to form a ring;
- 3) L1, L2, L3 and L4 are each independently selected from the group consisting of a single bond;
- a C6-C60 arylene group;
- and a fluorenylene group;
- a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
- and a C2-C60 heterocyclic group;
- 4) A and B are each independently a C6-C20 aryl group or a C2-C20 heterocyclic group, with the proviso that both A and B are not a C6 aryl group at the same time;
- 5) i and j are each independently 0 or 1, wherein i+j is 1 or more, and where i or j is 0, it means a direct bond,
- 6) X1 and X2 are NR′, wherein R′ is selected from the group consisting of hydrogen, a C6-C60 aryl group, a fluorenyl group, a C3-C60 heterocyclic group, and a C1-C50 alkyl group, wherein the aryl group, fluorenyl group, arylene group, heterocyclic group, fused ring group, alkyl group, alkenyl group, alkoxy group and aryloxy group may be substituted with one or more substituents selected from the group consisting of deuterium;
- halogen;
- a silane group substituted or unsubstituted with C1-C20 alkyl group or C6-C20 aryl group;
- siloxane group;
- boron group;
- germanium group;
- cyano group;
- nitro group;
- -L′—N(Ra)(Rb);
- a C1-C20 alkylthio group;
- C1-C20 alkoxyl group;
- C1-C20 alkyl group;
- C2-C20 alkenyl group;
- C2-C20 alkynyl group;
- C6-C20 aryl group;
- C6-C20 aryl group substituted with deuterium;
- a fluorenyl group;
- C2-C20 heterocyclic group;
- C3-C20 cycloalkyl group;
- C7-C20 arylalkyl group;
- and C8-C20 arylalkenyl group, wherein the substituents may combine each other and form a saturated or unsaturated ring, wherein the term ‘ring’ means C3-C60 aliphatic ring or C6-C60 aromatic ring or a C2-C60 heterocyclic ring or a fused ring formed by the combination of thereof.
55 more elements
Dependencies are inferred from the claim text.