US 12,227,523 B2
Luminescence device and polycyclic compound for luminescence device
XiuLan Jin, Yokohama (JP)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Oct. 27, 2021, as Appl. No. 17/512,185.
Claims priority of application No. 10-2021-0005555 (KR), filed on Jan. 14, 2021.
Prior Publication US 2022/0235071 A1, Jul. 28, 2022
Int. Cl. C07D 519/00 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 71/00 (2023.01); H10K 101/10 (2023.01)
CPC C07D 519/00 (2013.01) [H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 71/00 (2023.02); H10K 2101/10 (2023.02)] 20 Claims
 
1. A luminescence 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 represented by Formula 1:

OG Complex Work Unit Chemistry
wherein in Formula 1,
X1 is O or S,
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, except that Ar1 is not a heteroaryl group containing two or more nitrogen (N) atoms,
R1 is a hydrogen atom, a deuterium atom, a halogen atom, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms,
R2 is 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, or is bonded to an adjacent group to form a ring,
a is an integer from 0 to 4,
b is an integer from 0 to 3,
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, except that L does not include a carbazole group, and
A is a group represented by Formula 2-1 or Formula 2-2, except that L is not a direct linkage when A is a group represented by Formula 2-2:

OG Complex Work Unit Chemistry
wherein in Formula 2-1 and Formula 2-2,
Y is N(Ar3), O, or S,
X2 is O or S,
Ar2 and Ar3 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, except that Ar2 and Ar3 are each not a heteroaryl group containing two or more nitrogen (N) atoms,
R3 to R5 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, or are bonded to an adjacent group to form a ring,
R6 is a hydrogen atom, a deuterium atom, a halogen atom, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms,
c and e are each independently an integer from 0 to 3,
d and f are each independently an integer from 0 to 4, and
custom characterrepresents a binding site to a neighboring atom.