US 12,441,936 B2
Light emitting element and polycyclic compound for the same
Takao Sakuma, Yokohama (JP)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Sep. 13, 2021, as Appl. No. 17/447,533.
Claims priority of application No. 10-2021-0007281 (KR), filed on Jan. 19, 2021.
Prior Publication US 2022/0246858 A1, Aug. 4, 2022
Int. Cl. C09K 11/06 (2006.01); C07D 209/86 (2006.01); C07D 405/14 (2006.01); H10K 50/15 (2023.01); H10K 50/17 (2023.01); H10K 50/18 (2023.01); H10K 85/60 (2023.01)
CPC C09K 11/06 (2013.01) [C07D 209/86 (2013.01); C07D 405/14 (2013.01); H10K 85/615 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1018 (2013.01); H10K 50/15 (2023.02); H10K 50/17 (2023.02); H10K 50/18 (2023.02); H10K 50/181 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A light emitting element comprising:
a first electrode;
a second electrode on the first electrode; and
at least one functional layer between the first electrode and the second electrode and comprising a polycyclic compound represented by Formula 1:

OG Complex Work Unit Chemistry
wherein, in Formula 1,
X1, X2, and X3 are each independently Rx or represented by Substituent S1, and at least one of X1, X2, or X3 is represented by Substituent S1,
Rx and R1 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a substituted or unsubstituted oxy group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 50 ring-forming carbon atoms, and/or are bonded to an adjacent group to form a ring,
a is an integer of 0 to 5, and
Ar1 and Ar2 are each independently a substituted or unsubstituted aryl group having 6 to 50 ring-forming carbon atoms,

OG Complex Work Unit Chemistry
wherein, in Substituent S1,
Y1, Y2, and Y3 are each independently Ry or L2Z, and any one of Y1, Y2, or Y3 is represented by L2Z,
R2 and Ry are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a substituted or unsubstituted oxy group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 50 ring-forming carbon atoms, and/or are bonded to an adjacent group to form a ring, where Ry does not include a substituted or unsubstituted carbazole group,
b is an integer of 0 to 4,
L1 is a direct linkage, or a substituted or unsubstituted arylene group having 6 to 50 ring-forming carbon atoms, and
L2 is a direct linkage, a substituted or unsubstituted arylene group having 6 to 50 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 50 ring-forming carbon atoms,
wherein, when X1 is represented by Substituent S1 and Y1 is represented by L2Z, L2 is a direct linkage,
wherein, when X1 is represented by Substituent S1 and Y2 is represented by L2Z, Z is a substituted carbazole group,
in Substituent S1, “—*” is a position connected to a benzene ring in Formula 1, and
Z is represented by Substituent S2,

OG Complex Work Unit Chemistry
wherein, in Substituent S2,
R3 is a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a substituted or unsubstituted oxy group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 50 ring-forming carbon atoms, and/or is bonded to an adjacent group to form a ring,
c is an integer of 0 to 8, and
in Substituent S2,

OG Complex Work Unit Chemistry
is a position connected to L2 in Substituent S1, and
wherein, when Y1 is L2Z and L2 is a direct linkage, L1 is a direct linkage.