公开(公告)号：US12017453B2

公开(公告)日：2024-06-25

申请号：US17802897

申请日：2020-06-08

Applicant: Samsung Display Co., LTD.

Inventor： Jong Hyuk Kang ,  Jin Oh Kwag ,  Won Hee Nam ,  Suk Beom You ,  Hyun Min Cho

IPC: B41J2/045 ,  B41J2/11 ,  B41J2/14 ,  B41J2/175

CPC classification number: B41J2/04593 ,  B41J2/11 ,  B41J2/14 ,  B41J2/17596 ,  B41J2002/14491

Abstract: Provided are an inkjet printing device, a method for printing bipolar elements, and a method for manufacturing a display device. The inkjet printing device includes an inkjet head disposed above a stage and including a plurality of nozzles through which ink including bipolar elements each having areas doped with partially different polarities is discharged; an actuator disposed in the inkjet head and adjusting an amount of droplet of the ink discharged through the plurality of nozzles; and at least one sensing part disposed in the inkjet head and measuring a number of bipolar elements discharged through the plurality of nozzles.