公开(公告)号：US20230012042A1

公开(公告)日：2023-01-12

申请号：US17861019

申请日：2022-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： Cheho Lim ,  Dongjun Lee ,  Kangsoo Han ,  Sangyeon Hwang ,  Jeongwon Han

IPC: H01L21/66 ,  H01L51/00 ,  H01L27/32 ,  B41M3/00 ,  G01N15/06

Abstract: A method of manufacturing a display apparatus, the method includes supplying, from an ejector, a droplet onto a plane, capturing an image of the droplet, calculating a first luminance of a first area of the plane, the first area including a planar area of the droplet, and calculating a concentration of particles contained in the droplet based on the first luminance.

公开(公告)号：US11760097B2

公开(公告)日：2023-09-19

申请号：US17407431

申请日：2021-08-20

Applicant: Samsung Display Co., LTD.

Inventor： Kang Soo Han ,  Seon Uk Lee ,  Kanguk Kim ,  Ho-Yong Shin ,  Cheho Lim ,  Donchan Cho

IPC: B41J2/17

CPC classification number: B41J2/1721

Abstract: An inkjet circulation apparatus may include at least one inkjet printer including a supplier into which an ink is injected, a discharger connected to the supplier, and discharging the ink injected from the supplier, and a drain connected to the discharger and the supplier, and injecting the ink in the discharger into the supplier, at least one collector capable of containing an inert gas and the ink discharged from the discharger, and a contact member sealing between the discharger and the collector.