US 12,256,636 B2
Light-emitting device and electronic apparatus including same
Heechang Yoon, Yongin-si (KR); Dongchan Kim, Yongin-si (KR); Yoonseok Ka, Yongin-si (KR); Jiyoung Moon, Yongin-si (KR); Haemyeong Lee, Yongin-si (KR); and Yoonhyeung Cho, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Gyeonggi-do (KR)
Filed on Dec. 7, 2021, as Appl. No. 17/544,866.
Claims priority of application No. 10-2021-0046096 (KR), filed on Apr. 8, 2021.
Prior Publication US 2022/0344595 A1, Oct. 27, 2022
Int. Cl. H10K 85/60 (2023.01); H10K 10/46 (2023.01); H10K 30/80 (2023.01); H10K 30/81 (2023.01); H10K 50/155 (2023.01); H10K 50/17 (2023.01); H10K 50/81 (2023.01); H10K 50/82 (2023.01)
CPC H10K 85/6572 (2023.02) [H10K 10/46 (2023.02); H10K 30/81 (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 30/865 (2023.02); H10K 50/155 (2023.02); H10K 50/17 (2023.02); H10K 50/81 (2023.02); H10K 50/82 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A light-emitting device comprising:
a first electrode;
a second electrode facing the first electrode; and
an interlayer located between the first electrode and the second electrode and including an emission layer, wherein
an energy level of a valence band of the non-lead-based perovskite compound is about −6.0 eV to about −6.3 eV,
the first electrode has a work function value of −5.9 eV to about −6.1 eV, and
the interlayer includes a layer doped with a non-lead-based perovskite compound.