US 11,744,096 B2
Light emitting device and display device including 1HE same
Dae Young Chung, Suwon-si (KR); Kwanghee Kim, Seoul (KR); Eun Joo Jang, Suwon-si (KR); Tae Hyung Kim, Seoul (KR); Hongkyu Seo, Anyang-si (KR); Heejae Lee, Seoul (KR); and Jaejun Chang, Gwacheon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD, Suwon-si (KR)
Filed on Feb. 15, 2022, as Appl. No. 17/671,970.
Application 17/671,970 is a continuation of application No. 16/851,276, filed on Apr. 17, 2020, granted, now 11,251,390.
Claims priority of application No. 10-2019-0046358 (KR), filed on Apr. 19, 2019.
Prior Publication US 2022/0173342 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 51/50 (2006.01); H10K 50/115 (2023.01); H10K 50/13 (2023.01); H10K 71/00 (2023.01); H10K 71/15 (2023.01); H10K 71/40 (2023.01); H10K 101/30 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/115 (2023.02) [H10K 50/13 (2023.02); H10K 71/00 (2023.02); H10K 71/15 (2023.02); H10K 71/441 (2023.02); H10K 2101/30 (2023.02); H10K 2102/351 (2023.02)] 24 Claims
OG exemplary drawing
 
1. A light emitting device, comprising
a first electrode and a second electrode facing each other, and an emission layer disposed between the first electrode and the second electrode, and comprising quantum dots,
a first charge auxiliary layer disposed between the emission layer and the first electrode, and a second charge auxiliary layer disposed between the emission layer and the second electrode,
wherein the emission layer comprises a plurality of layers comprising quantum dots, and
the quantum dots comprise an organic ligand on a surface, and a content of the organic ligand of the quantum dots increases sequentially from a first layer in contact with the first charge auxiliary layer to a second layer in contact with the second charge auxiliary layer.