公开(公告)号：US11618257B2

公开(公告)日：2023-04-04

申请号：US17190367

申请日：2021-03-02

Applicant: Samsung Display Co., LTD.

Inventor： Seon Uk Lee ,  Kang Soo Han ,  Che Ho Lim ,  Don Chan Cho ,  Hak Bum Choi

IPC: B41J2/14

Abstract: An inkjet printing apparatus includes: a passage plate in which a head chamber is disposed; and a plurality of nozzle plates disposed below the passage plate, the plurality of nozzle plates comprising a nozzle that is in fluid connection with the head chamber. The plurality of nozzle plates are stacked on each other, and the nozzle of the plurality of nozzle plates comprises a plurality of through holes passing through the plurality of nozzle plates and overlapping each other.

公开(公告)号：US20220024208A1

公开(公告)日：2022-01-27

申请号：US17190367

申请日：2021-03-02

Applicant: Samsung Display Co., LTD.

Inventor： Seon Uk LEE ,  Kang Soo Han ,  Che Ho Lim ,  Don Chan Cho ,  Hak Bum Choi

IPC: B41J2/14

Abstract: An inkjet printing apparatus includes: a passage plate in which a head chamber is disposed; and a plurality of nozzle plates disposed below the passage plate, the plurality of nozzle plates comprising a nozzle that is in fluid connection with the head chamber. The plurality of nozzle plates are stacked on each other, and the nozzle of the plurality of nozzle plates comprises a plurality of through holes passing through the plurality of nozzle plates and overlapping each other.

公开(公告)号：US12122157B2

公开(公告)日：2024-10-22

申请号：US17869697

申请日：2022-07-20

Applicant: Samsung Display Co., LTD.

Inventor： Dong Jun Lee ,  Che Ho Lim ,  Kang Soo Han ,  Ho-Yong Shin ,  Gyeong Eun Eoh ,  Jun Hwi Lim

IPC: B41J2/14 ,  B41J2/175 ,  B41J2/18

CPC classification number: B41J2/14201 ,  B41J2/17563 ,  B41J2/18 ,  B41J2002/14403 ,  B41J2002/14419 ,  B41J2/17503 ,  B41J2202/12

Abstract: An embodiment of the present invention provides an inkjet head including: a head body having a storage chamber capable of storing ink; a first inlet pipe and a second inlet pipe connected to the head body and which extend in first different directions and inject the ink in the first different directions; a first outlet pipe and a second outlet pipe connected to the head body and which extend in second different directions and eject the ink in the second different directions; and a nozzle plate positioned under the head body and which includes a plurality of nozzles.

公开(公告)号：US11919317B2

公开(公告)日：2024-03-05

申请号：US17702768

申请日：2022-03-23

Applicant: Samsung Display Co., LTD.

Inventor： Dong Jun Lee ,  Che Ho Lim ,  Ho Yong Shin ,  Gyeong Eun Eoh ,  Jun Hwi Lim ,  Seon Uk Lee

IPC: B41J2/175 ,  B41J11/00

CPC classification number: B41J2/17566

Abstract: An inkjet printing apparatus, method of printing ink using the same and method of fabricating display device are provided. The method of printing ink includes: ejecting ink in which a plurality of particles is dispersed from an inkjet head; irradiating the ejected ink with a first light and a second light having different wavelengths to acquire data on a first exit light and a second exit light emitted from the ink; calculating a concentration of the particles in the ink from the data on the first exit light and the second exit light; and checking whether the concentration is out of an error range from a reference value, where the first light has a wavelength of about 500 nm or less, and the second light has a wavelength of about 1000 nm or more.