	US 12,433,064 B2
	Inkjet printing device, method for aligning bipolar element, and method for manufacturing display device
An Na Ryu, Hwaseong-si (KR); Jin Oh Kwag, Yongin-si (KR); Sung Hoon Kim, Seoul (KR); Dong Ho Lee, Seoul (KR); and Sung Chan Jo, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Appl. No. 17/628,981
Filed by Samsung Display Co., LTD., Yongin-si (KR)
PCT Filed Feb. 27, 2020, PCT No. PCT/KR2020/002798 § 371(c)(1), (2) Date Jun. 14, 2022, PCT Pub. No. WO2021/015385, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 10-2019-0089752 (KR), filed on Jul. 24, 2019.
Prior Publication US 2022/0320365 A1, Oct. 6, 2022
Int. Cl. H10H 20/01 (2025.01); B41J 2/06 (2006.01); H10H 20/821 (2025.01); H10H 20/84 (2025.01); H10H 29/14 (2025.01)

CPC H10H 20/01 (2025.01) [B41J 2/06 (2013.01); H10H 20/821 (2025.01); H10H 20/84 (2025.01); H10H 29/142 (2025.01)]

27 Claims

1. An inkjet printing device comprising:

an electric field generation part including:

a stage; and

a probe part generating an electric field on the stage; and

an inkjet head positioned above the stage and including nozzles from which ink is ejected, wherein

each of the nozzles includes:

an inlet having a first diameter; and

an outlet connected to the inlet and having a second diameter smaller than the first diameter, and

the inkjet printing device ejects the ink including a bipolar element extending in an extension direction, the bipolar element comprising a semiconductor.