US 12,069,945 B2
Light emitting device
Keigo Hoshi, Yokohama (JP)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jun. 10, 2021, as Appl. No. 17/344,278.
Claims priority of application No. 10-2020-0136195 (KR), filed on Oct. 20, 2020.
Prior Publication US 2022/0123228 A1, Apr. 21, 2022
Int. Cl. H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01)
CPC H10K 85/636 (2023.02) [H10K 85/658 (2023.02); H10K 50/11 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A light emitting device, comprising:
a first electrode;
a second electrode disposed on the first electrode; and
an emission layer disposed between the first electrode and the second electrode and comprising a polycyclic compound represented by one of Formula 1-1 to Formula 1-4:

OG Complex Work Unit Chemistry
wherein in Formula 1-1 to Formula 1-4,
Q1 is a substituted or unsubstituted hydrocarbon ring group, or a substituted or unsubstituted heterocyclic group,
Y1 and Y2 are each independently B, N, P, P═O, P═S, Al, Ga, As, Si(R5), or Ge(R6),
Y11 and Y12 are each independently O or S,
a1 and a2 are each independently an integer from 0 to 4,
a4 is an integer from 0 to 3,
a11 to a14 are each independently an integer from 0 to 4,
L1 to L4 are each a direct linkage,
at least one of m1 to m4 is 1, and the remainder of m1 to m4 are each independently 0 or 1,
R1 to R6 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amine group, a substituted or unsubstituted thio group, a substituted or unsubstituted oxy group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted alkenyl group of 2 to 20 carbon atoms, 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, or are combined with an adjacent group to form a ring, and
R11 to R14 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amine group, a substituted or unsubstituted thio group, a substituted or unsubstituted oxy group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, 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, or are combined with an adjacent group to form a ring.