US 12,132,140 B2
Ink containing light-emitting elements and method of fabricating display device using the same
Hyo Jin Ko, Seoul (KR); Duk Ki Kim, Suwon-si (KR); Yong Hwi Kim, Asan-si (KR); Jun Bo Sim, Suwon-si (KR); Na Mi Hong, Cheonan-si (KR); Jong Hyuk Kang, Suwon-si (KR); Gyu Bong Kim, Suwon-si (KR); Hoi Lim Kim, Seoul (KR); Sae Na Yun, Suwon-si (KR); Chang Hee Lee, Seoul (KR); Hyun Deok Im, Seoul (KR); Eun A Cho, Suwon-si (KR); and Jae Kook Ha, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Sep. 16, 2021, as Appl. No. 17/476,993.
Claims priority of application No. 10-2020-0121910 (KR), filed on Sep. 22, 2020.
Prior Publication US 2022/0093817 A1, Mar. 24, 2022
Int. Cl. H01L 33/00 (2010.01); B82B 3/00 (2006.01); C09D 11/033 (2014.01); C09D 11/50 (2014.01); C09D 11/52 (2014.01); H01L 27/15 (2006.01); H01L 33/24 (2010.01); H01L 33/38 (2010.01); H01L 33/44 (2010.01)
CPC H01L 33/005 (2013.01) [B82B 3/0052 (2013.01); C09D 11/033 (2013.01); C09D 11/50 (2013.01); C09D 11/52 (2013.01); H01L 27/156 (2013.01); H01L 33/24 (2013.01); H01L 33/38 (2013.01); H01L 33/44 (2013.01); H01L 2933/0016 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An ink, comprising:
a solvent; and
a plurality of light-emitting elements dispersed in the solvent, wherein
each of the plurality of light-emitting elements comprises:
a first semiconductor layer;
a second semiconductor layer;
a light-emitting layer disposed between the first semiconductor layer and the second semiconductor layer; and
an insulating film surrounding at least an outer surface of the light-emitting layer, and
the solvent has Hansen solubility parameters of a polarity parameter between about 4 and about 9 and a hydrogen bonding parameter between about 6 and about 11.