US 12,284,905 B2
Light emitting device
Junha Park, Gwacheon-si (KR); Taeil Kim, Hwaseong-si (KR); Sun Young Pak, Suwon-si (KR); Jang Yeol Baek, Yongin-si (KR); Kyoung Sunwoo, Hwaseong-si (KR); Mun-Ki Sim, Seoul (KR); Chanseok Oh, Seoul (KR); and Minjung Jung, Siheung-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Sep. 28, 2021, as Appl. No. 17/449,220.
Claims priority of application No. 10-2020-0128803 (KR), filed on Oct. 6, 2020; and application No. 10-2021-0119307 (KR), filed on Sep. 7, 2021.
Prior Publication US 2022/0115595 A1, Apr. 14, 2022
Int. Cl. H10K 85/30 (2023.01); C07F 5/02 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01)
CPC H10K 85/322 (2023.02) [C07F 5/027 (2013.01); C09K 11/06 (2013.01); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A light emitting device comprising:
a first electrode;
a second electrode on the first electrode; and
an emission layer which is between the first electrode and the second electrode and comprises a condensed cyclic compound represented by Formula 1 below,
wherein the first electrode and the second electrode each independently comprises any one selected from among Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/AI, Mo, Ti, W, In, Sn, Zn, a compound of two or more thereof, a mixture of two or more thereof, and an oxide thereof:

OG Complex Work Unit Chemistry
wherein, in Formula 1,
X1 to X4 are each independently O, S, CR5R6, or NR7,
m and n are each independently an integer of 0 to 3,
and p are each independently an integer of 0 to 4,
R0 to R7 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heterocycle having 2 to 30 ring-forming carbon atoms, and
at least one selected from among R1 to R7 comprises a substituent represented by Formula 2 or Formula 3 below:

OG Complex Work Unit Chemistry
wherein, in Formula 2 and Formula 3,
Y1 to Y3 are each independently a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, a substituted or unsubstituted amine group, or a substituted or unsubstituted heterocycle having 2 to 30 ring-forming carbon atoms, and
R8 to R14 are independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a nitro group, a substituted or a unsubstituted silyl group, or a substituted or unsubstituted alkyl group having 1 to 10 carbons atoms
“*”indicates a bonding point to another atom in the R1 to R7 group or the condensed cyclic compound represented by Formula 1.