	US 12,441,901 B2
	Quantum dot ink composition, and quantum dot electroluminescent device
Keigo Furuta, Yokohama (JP); Hiroko Endo, Yokohama (JP); Takao Motoyama, Yokohama (JP); Yukika Yamada, Yokohama (JP); Tomoyuki Kikuchi, Yokohama (JP); Eun Joo Jang, Suwon-si (KR); Hyo Sook Jang, Suwon-si (KR); Jun-Mo Yoo, Suwon-si (KR); Tae Ho Kim, Suwon-si (KR); and Yuho Won, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD, Suwon-si (KR)
Filed on Feb. 15, 2023, as Appl. No. 18/169,753.
Claims priority of application No. 2022-021017 (JP), filed on Feb. 15, 2022.
Prior Publication US 2023/0257607 A1, Aug. 17, 2023
Int. Cl. C09D 11/36 (2014.01); C09D 11/38 (2014.01); H10K 50/115 (2023.01)

CPC C09D 11/36 (2013.01) [C09D 11/38 (2013.01); H10K 50/115 (2023.02)]

20 Claims

1. A quantum dot ink composition, comprising

a plurality of quantum dots, and

a mixed solvent comprising a Solvent a and a Solvent b, wherein the quantum dot ink composition has a surface tension of about 30 milliNewtons per meter to about 40 milliNewtons per meter,

wherein Solvent a is a cycloalkane compound with at least a ring carbon having a C4 to C16 linear alkyl group, and

Solvent b is an aromatic hydrocarbon compound with at least a ring carbon having a C2 to C12 linear alkyl group.