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1.发明公开公开(公告)号：US20240253360A1
公开(公告)日：2024-08-01
申请号：US18592167
申请日：2024-02-29
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
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.
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公开(公告)号：US20230011658A1
公开(公告)日：2023-01-12
申请号：US17859700
申请日：2022-07-07
Applicant: Samsung Display Co., LTD.
Inventor： Kang Soo HAN , Ju Yong KIM , Ho Yong SHIN , Gyeong Eun EOH , Jun Hwi LIM
Abstract: A method for inkjet printing includes setting a target volume and a target concentration of ink discharged to a pixel, measuring a volume and a concentration of a liquid drop for each of nozzles, selecting first nozzle groups for achieving the target volume, from a volume pool of the liquid drop for each of the nozzles, selecting second nozzle groups for achieving the target concentration, from the first nozzle groups, selecting recipes by combining brightness trend lines, from the second nozzle groups, performing a printing simulation for each of the recipes to select a final recipe, and performing inkjet printing by using the final recipe.
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公开(公告)号：US20230010486A1
公开(公告)日：2023-01-12
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
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.
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