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US 12,588,411 B2Granted
Organic electroluminescence device and fused polycyclic compound for organic electroluminescence device
AssigneeSamsung Display Co., Ltd.
InventorsJang Yeol Baek, Seran Kim, Taeil Kim, Sun Young Pak, Junha Park, Kyoung Sunwoo, Mun-Ki Sim, Chanseok Oh, Minjung Jung
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Abstract
An organic electroluminescence device of an embodiment includes a first electrode, a second electrode facing the first electrode, and organic layers disposed between the first electrode and the second electrode, wherein the organic layers include at least one organic layer that includes a fused polycyclic compound represented by Formula 1, thereby showing improved emission efficiency.
Claims20
An organic electroluminescence device, comprising:
- a first electrode;
- a second electrode facing the first electrode;
- and
- a plurality of organic layers disposed between the first electrode and the second electrode, wherein
- the plurality of organic layers comprises:
- at least one organic layer that comprises a fused polycyclic compound represented by Formula 1, and
- at least one organic layer that comprises an amine compound represented by Formula H-1:
- wherein in Formula 1,
- Cy2 to Cy7 are each independently a substituted or unsubstituted aromatic hydrocarbon ring, or a substituted or unsubstituted aromatic heterocycle,
- X1 to X3 are each independently N(Ar1), O, S, or Se,
- Ar1 is a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group of 2 to 60 ring-forming carbon atoms,
- R1 is a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group of 2 to 60 ring-forming carbon atoms,
- a is an integer 1 to 3, and
- an atom in R1 that is bonded to Cy1 is not nitrogen:
- wherein in Formula H-1,
- L1 and L2 are each independently a direct linkage, a substituted or unsubstituted arylene group of 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group of 2 to 30 ring-forming carbon atoms,
- x and y are each independently an integer from 0 to 10,
- Ara and Arb are each independently a substituted or unsubstituted aryl group of 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group of 2 to 30 ring-forming carbon atoms, and
- Arc is a substituted or unsubstituted aryl group of 6 to 30 ring-forming carbon atoms.
16 more elements
An organic electroluminescence device, comprising:
- a first electrode;
- a hole transport region disposed on the first electrode;
- an emission layer disposed on the hole transport region;
- an electron transport region disposed on the emission layer;
- and
- a second electrode disposed on the electron transport region, wherein
- the emission layer comprises a fused polycyclic compound represented by Formula 1:
- wherein in Formula 1,
- Cy2 to Cy7 are each independently a substituted or unsubstituted aromatic hydrocarbon ring, or a substituted or unsubstituted aromatic heterocycle,
- X1 to X3 are each independently N(Ar1), O, S, or Se,
- Ar1 is a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group of 2 to 60 ring-forming carbon atoms,
- R1 is a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group of 2 to 60 ring-forming carbon atoms,
- a is an integer of 1 to 3,
- an atom in R1 that is bonded to Cy1 is not nitrogen, and
- a bond dissociation energy between at least one R1 and Cy1 is equal to or greater than about 2.5 eV.
12 more elements
Dependencies are inferred from the claim text.