US 12,295,257 B2
Organic electroluminescence device and polycyclic compound for same
Takuya Uno, Yokohama (JP)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Sep. 2, 2020, as Appl. No. 17/010,424.
Claims priority of application No. 10-2019-0133147 (KR), filed on Oct. 24, 2019.
Prior Publication US 2021/0126199 A1, Apr. 29, 2021
Int. Cl. H10K 85/60 (2023.01); C07D 498/06 (2006.01); C07F 7/08 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/17 (2023.01); H10K 85/40 (2023.01); H10K 101/10 (2023.01)
CPC H10K 85/636 (2023.02) [C07D 498/06 (2013.01); C07F 7/0812 (2013.01); C09K 11/06 (2013.01); H10K 85/40 (2023.02); H10K 85/633 (2023.02); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/17 (2023.02); H10K 85/615 (2023.02); H10K 85/624 (2023.02); H10K 85/626 (2023.02); H10K 85/657 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 2101/10 (2023.02)] 20 Claims
OG exemplary drawing
 
1. 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 hole transport region comprises a polycyclic compound of Formula 1:

OG Complex Work Unit Chemistry
wherein, in Formula 1,
X is O or S;
at least one of R1, R3 to R5, R7, R8, and R10 is an amine group of Formula 2:

OG Complex Work Unit Chemistry
wherein, in Formula 2,
L 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, provided that L does not include a carbazole group;
Ar1 and Ar2 are each, independently from one another, 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, where Ar1 and Ar2 do not bond to each other to form a ring; and
a is 0, 1, 2, 3, or 4, and
the remainder of R1, R3 to R5, R7, R8, and R10, which do not include an amine group of Formula 2, are each independently a hydrogen atom, a deuterium atom, a halogen atom, 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,
R2, R6, and R9 are each, independently from one another, a hydrogen atom, a deuterium atom, a halogen atom, 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, and
when a is 0, only one of R1, R3 to R5, R7, R8, and R10 is an amine group of Formula 2, and
when a is 0, neither Ar1 nor Ar2 are phenyl groups having six ring-forming carbon atoms.