US 12,256,630 B2
Light-emitting device
Hyosup Shin, Yongin-si (KR); Soobyung Ko, Yongin-si (KR); Tsuyoshi Naijo, Yongin-si (KR); and Jiyoung Lee, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Nov. 9, 2021, as Appl. No. 17/522,855.
Claims priority of application No. 10-2021-0036754 (KR), filed on Mar. 22, 2021.
Prior Publication US 2022/0310921 A1, Sep. 29, 2022
Int. Cl. H01L 51/50 (2006.01); H10K 85/30 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/12 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01); H10K 101/40 (2023.01)
CPC H10K 85/322 (2023.02) [H10K 85/622 (2023.02); H10K 85/626 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/11 (2023.02); H10K 50/12 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 2101/10 (2023.02); H10K 2101/40 (2023.02); H10K 2101/90 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A light-emitting device comprising:
a first electrode;
a second electrode facing the first electrode; and
an interlayer between the first electrode and the second electrode and comprising an emission layer,
wherein the emission layer comprises:
a first host, a second host, and a dopant,
at least one of the first host and the second host is an organometallic compound, and
the first host, the second host, and the dopant satisfy the following Equation (1):
|LUMO energy of H2−HOMO energy of H1|≥0.9×T1 energy of D.