US 12,421,256 B2
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
Nobutaka Akashi, Yokohama (JP)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Sep. 23, 2021, as Appl. No. 17/483,098.
Claims priority of application No. 10-2020-0187678 (KR), filed on Dec. 30, 2020.
Prior Publication US 2022/0216406 A1, Jul. 7, 2022
Int. Cl. H01L 51/50 (2006.01); C07F 5/02 (2006.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01)
CPC C07F 5/027 (2013.01) [H10K 85/322 (2023.02); H10K 85/658 (2023.02); H10K 50/11 (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 emission layer includes a polycyclic compound represented by Formula 1:

OG Complex Work Unit Chemistry
wherein in Formula 1,
rings A to E are each independently a substituted or unsubstituted aryl group having 4 to 10 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 10 ring-forming carbon atoms,
Y1 and Y2 are each independently B, P, P—S, or P—O,
X1 to X3 are each independently N(Ar1), O, S, or Se,
except that X1 and X2 are not simultaneously N(Ar1), and
Ar1 is a hydrogen atom, a deuterium 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.