公开(公告)号：US20240286165A1

公开(公告)日：2024-08-29

申请号：US18406431

申请日：2024-01-08

Applicant: Samsung Display Co., LTD.

Inventor： JONGSUNG KIM ,  HONGGI MIN ,  SANGJIN LEE ,  HEE JUNG LEE ,  MYUNGSOO HUH

IPC: B05C5/02 ,  B05D1/02

CPC classification number: B05C5/0291 ,  B05D1/02

Abstract: A manufacturing method of a display device includes forming a first droplet on a first region of a substrate by nozzles, moving the nozzles onto a second region of the substrate spaced apart in a first direction from the first region, forming a second droplet on the second region, calculating a first distance between the first and second droplets, moving the nozzles onto a third region of the substrate spaced apart in a direction opposite to the first direction from the second region, forming a third droplet on the third region, moving the nozzles onto a fourth region of the substrate spaced apart in the first direction from the third region, forming a fourth droplet on the fourth region, calculating a second distance between the third and the fourth droplets, and calculating a jetting velocity of each of the nozzles based on the first distance and the second distance.

公开(公告)号：US20240326419A1

公开(公告)日：2024-10-03

申请号：US18509511

申请日：2023-11-15

Applicant: Samsung Display Co., Ltd.

Inventor： HONGGI MIN ,  JONGSUNG KIM ,  SANGJIN LEE ,  HEE JUNG LEE ,  MYUNGSOO HUH

IPC: B41J2/045 ,  B41J2/145

CPC classification number: B41J2/04593 ,  B41J2/145

Abstract: An inkjet printing apparatus includes a head pack including a plurality of heads, wherein each of the plurality of heads includes a plurality of nozzles, wherein each of the plurality of heads extends in a first direction and is disposed adjacent to each other in a second direction intersecting the first direction, and a volume of a droplet ejected from each of the plurality of nozzles is alternately set to a first volume larger than a reference volume and a second volume smaller than the reference volume for each of the plurality of heads along the second direction.