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US 12,635,332 B2Granted
Compound for organic electroluminescence device
AssigneeSamsung Display Co., Ltd.
InventorsEunjae Jeong, Dongjun Kim, Minji Kim, Sohee Jo, Sanghyun Han
Life of this patent
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Abstract
An organic electroluminescence device (OLED) of an embodiment includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, and an electron transport region on the emission layer. The hole transport region may include an amine compound represented by Formula 1, and the OLED may thereby exhibit high luminous efficiency:
Claims20
An organic electroluminescence device comprising:
- a capping layer;
- an electrode on the capping layer;
- an electron transport region on the electrode;
- an emission layer on the electron transport region;
- and
- a hole transport region on the emission layer,
- wherein
- the capping layer comprises an amine compound represented by Formula 1:
- and
- wherein, in Formula 1,
- L1 and L2 are each independently 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,
- m and n are each independently an integer of 0 to 2,
- Ar1 and Ar2 are each independently 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,
- R1 to R4 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, 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,
- a and b are each independently an integer of 0 to 4, and
- c and d are each independently an integer of 0 to 5.
13 more elements
An organic electroluminescence device comprising:
- a electrode;
- a hole transport region on the electrode;
- an emission layer on the hole transport region;
- and
- an electron transport region on the emission layer,
- wherein the emission layer comprises one selected from among fluoranthene derivatives, pyrene derivatives, arylacetylene derivatives, anthracene derivatives, fluorene derivatives, perylene derivatives, chrysene derivatives, and combinations thereof, and
- the hole transport region comprises an amine compound represented by Formula 1:
- and
- wherein, in Formula 1,
- L1 and L2 are each independently 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,
- m and n are each independently an integer of 0 to 2,
- Ar1 and Ar2 are each independently 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,
- R1 to R4 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, 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,
- a and b are each independently an integer of 0 to 4, and
- c and d are each independently an integer of 0 to 5.
12 more elements
Dependencies are inferred from the claim text.