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公开(公告)号：US12256619B2
公开(公告)日：2025-03-18
申请号：US17483487
申请日：2021-09-23
Applicant: Samsung Display Co., Ltd.
Inventor： Seon Uk Lee , Hwa Yeul Oh , Seung Kil Yang , Song Ee Lee , Yoo Seok Jang , Jeong Ki Kim , Jong Hoon Kim , Ju Yong Kim , Ji Seong Yang , Jun Hwi Lim , Sang Yeon Hwang
IPC: H01L27/32 , H01L51/52 , H10K50/854 , H10K59/12 , H10K59/38
Abstract: A display device is provided. A display device including a plurality of light-output areas through which incident light is emitted and a light-blocking area which blocks the incident light, the display device includes a substrate, a bank layer which is disposed in the light-blocking area on the substrate and defines a plurality of openings, each of which is disposed in one of the plurality of light-output areas, and a color control pattern disposed in the opening of the bank layer, wherein the bank layer includes a first bank area which has a first thickness and defines the plurality of openings and a second bank area which is disposed between the plurality of openings and has a second thickness smaller than the first thickness.
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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
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.
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公开(公告)号：US12113147B2
公开(公告)日：2024-10-08
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
CPC classification number: H01L33/005 , B41J2/17566 , H01L27/156 , H01L33/24 , H01L33/38 , H01L33/44 , H01L2933/0016
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：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
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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