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US 12,692,433 B2Granted
Organic electroluminescence device and amine compound for organic electroluminescence device
AssigneeSamsung Display Co., Ltd.
InventorsSohee Jo, Dongjun Kim, Minji Kim, Hankyu Pak, Eunjae Jeong, Sanghyun Han
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Abstract
An organic electroluminescence device includes a first electrode and a second electrode which face each other, and a plurality of organic layers between the first electrode and the second electrode, where at least one of the organic layers includes an amine compound represented by Formula 1, and the organic electroluminescence device may exhibit improved luminous efficiency:
Claims12
An organic electroluminescence device comprising:
- a first electrode;
- a second electrode facing the first electrode;
- and
- a plurality of organic layers between the first electrode and the second electrode,
- wherein,
- at least one of the plurality of organic layers comprises an amine compound comprising one amine group, the one amine group having an N atom connected to Ar1, Ar2, and a spirofluorene-indene group,
- the N atom is connected to one benzene ring of a fluorene group moiety of the spirofluorene-indene group,
- Ar2 is an unsubstituted N-phenyl carbazole group or an unsubstituted N-fluorophenyl carbazole group, and is connected to the N atom at a 2nd carbon position or a 3rd carbon position of the carbazole group,
- Ar2 is connected to the N atom through an unsubstituted phenylene linker, and
- Ar1 is a substituted or unsubstituted aryl group having 10 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms,
- Ar1 is a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms.
8 more elements
An organic electroluminescence device comprising:
- a first electrode;
- a second electrode facing the first electrode;
- and
- a plurality of organic layers between the first electrode and the second electrode,
- wherein at least one organic layer among the plurality of organic layers comprises an amine compound comprising one amine group, the amine compound represented by Formula 4-1 or Formula 4-2:
- and
- wherein, in Formula 4-1 and Formula 4-2,
- X is NAr3,
- Ar3 is an unsubstituted phenyl group or an unsubstituted fluorophenyl group,
- Ar1 is a substituted or unsubstituted aryl group having 10 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms,
- L1 is a direct linkage, a substituted or unsubstituted arylene group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 30 ring-forming carbon atoms,
- L2 is an unsubstituted phenylene group,
- R1 to R3 are each independently a hydrogen atom, a deuterium atom, a halogen atom, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms,
- R4 and R5 are each independently a hydrogen atom or a deuterium atom,
- R11 to R14 are each independently a hydrogen atom, a deuterium atom, a halogen atom, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms,
- n1, n2, and n4 are each independently an integer of 0 to 4, and
- n3 and n5 are each independently an integer of 0 to 3.
14 more elements
An amine compound for an organic electroluminescence device,
- wherein the amine compound comprises one amine group and is represented by Formula 4-1 or Formula 4-2:
- and
- wherein, in Formula 4-1 and Formula 4-2,
- X is NAr3,
- Ar3 is an unsubstituted phenyl group or an unsubstituted fluorophenyl group,
- Ar1 is a substituted or unsubstituted aryl group having 10 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms,
- L1 is a direct linkage, a substituted or unsubstituted arylene group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 30 ring-forming carbon atoms,
- L2 is an unsubstituted phenylene group,
- R1 to R3 are each independently a hydrogen atom, a deuterium atom, a halogen atom, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms,
- R4 and R5 are each independently a hydrogen atom or a deuterium atom,
- R11 to R14 are each independently a hydrogen atom, a deuterium atom, a halogen atom, or a substituted or unsubstituted alkyl group having 1 to 20 ring-forming carbon atoms,
- n1, n2, and n4 are each independently an integer of 0 to 4, and
- n3 and n5 are each independently an integer of 0 to 3.
10 more elements
Dependencies are inferred from the claim text.