	US 11,859,116 B2
	Quantum dot composition and method of manufacturing light-emitting device using the quantum dot composition
Yunku Jung, Yongin-si (KR); Hyekyoung Choi, Yongin-si (KR); Sungwoon Kim, Yongin-si (KR); and Jaekook Ha, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jun. 23, 2021, as Appl. No. 17/356,463.
Claims priority of application No. 10-2020-0126368 (KR), filed on Sep. 28, 2020.
Prior Publication US 2022/0098481 A1, Mar. 31, 2022
Int. Cl. C09K 11/62 (2006.01); C09K 11/56 (2006.01); C09K 11/88 (2006.01); C09K 11/70 (2006.01); C09K 11/02 (2006.01); C09K 11/08 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); H10K 50/115 (2023.01)

CPC C09K 11/626 (2013.01) [C09K 11/025 (2013.01); C09K 11/0883 (2013.01); C09K 11/565 (2013.01); C09K 11/70 (2013.01); C09K 11/883 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); H10K 50/115 (2023.02)]

20 Claims

1. A quantum dot composition comprising:

a first solvent;

a second solvent different from the first solvent;

first quantum dots comprising a hole-transporting ligand; and

second quantum dots comprising an electron-transporting ligand,

wherein the first solvent and the second solvent are miscible solvents having different boiling points from each other,

a degree of dispersion of the first quantum dots is greater in the first solvent than in the second solvent, and

a degree of dispersion of the second quantum dots is greater in the second solvent than in the first solvent.