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公开(公告)号：US20250042151A1
公开(公告)日：2025-02-06
申请号：US18790687
申请日：2024-07-31
Applicant: Enjet Co. LTD
Inventor： Do Young Byun , Vu Dat Nguyen , Baek Hoon Seong
Abstract: The present disclosure relates to an electrohydrodynamic jet printing apparatus and a method for controlling printing of the electrohydrodynamic jet printing apparatus. The electrohydrodynamic jet printing apparatus according to the present disclosure includes a nozzle that ejects supplied ink as a droplet towards a substrate; an electrode that is formed on the nozzle to form an electric field between the nozzle and the substrate by an applied voltage; a voltage supplier that applies the voltage to the electrode; and a controller that controls the voltage supplier, the controller controlling in real time the voltage being applied from the voltage supplier to the electrode such that a size of the droplet being ejected from the nozzle is constant.
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公开(公告)号：US20240326468A1
公开(公告)日：2024-10-03
申请号：US18618545
申请日：2024-03-27
Applicant: ENJET CO. LTD.
Inventor： Do Young BYUN , Baek Hoon SEONG , Won-Il SON
CPC classification number: B41J3/4073 , B41J2/04566 , B41J2/04593 , B41J2/085 , B41J2/17523 , B41J25/001 , C09D11/30
Abstract: The present disclosure relates to a 3D surface printing apparatus for the edge area of substrate, the apparatus including a jig part that erects the substrate and immobilizes it, a nozzle part that comprises a nozzle that ejects ink through Electrohydrodynamic (EHD) jetting by applying a voltage to an electrode, from above the erected substrate; a moving part that moves the nozzle left and right; and a control part that controls a printing operation, wherein the moving part prints a pattern that is continuously connected along a front surface of the rim of the substrate, a side surface of the substrate and a rear surface of the rim of the substrate as it horizontally moves the nozzle, and the control part controls the printing operation, considering changes in 3D electric field distribution.
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公开(公告)号：US20230170355A1
公开(公告)日：2023-06-01
申请号：US18102375
申请日：2023-01-27
Applicant: SAMSUNG ELECTRONICS CO., LTD. , ENJET CO., LTD.
Inventor： Doyoung BYUN , Yonghee JANG , Keon KUK , Seongyong KIM , Jinwoo JUNG , Soonmin HONG , Tackmo LEE , Gyun HEO
CPC classification number: H01L27/124 , H01L25/167 , H01L27/1288
Abstract: A display module includes a thin film transistor (TFT) substrate including a class substrate and a TFT layer provided on a front surface of the glass substrate, the TFT layer including a TFT circuit, a plurality of light emitting diodes provided on the TFT layer, a plurality of first connection pads provided at a distance from each other on the front surface of the glass substrate and connected to the TFT circuit, a plurality of second connection pads provided at a distance from each other on a rear surface of the glass substrate and connected to a second circuit, where the second circuit is configured to supply power and is connected to a control board, and a plurality of side wirings electrically connecting each of the plurality of first connection pads to respective connection pads of the plurality of second connection pads.
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公开(公告)号：US11383518B2
公开(公告)日：2022-07-12
申请号：US17185486
申请日：2021-02-25
Applicant: ENJET CO. LTD.
Inventor： Do Young Byun , Yong Hee Jang , Vu Dat Nguyen
IPC: B41J2/14
Abstract: The present disclosure relates to an induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode, and the induced electrohydrodynamic jet printing apparatus including an induced auxiliary electrode according to the present disclosure includes a nozzle for discharging supplied solution towards an opposite substrate through a nozzle hole formed at one end; a main electrode coated with an insulator and interpolated inside the nozzle, thus not contacting the solution inside the nozzle but separated from the solution; the induced auxiliary electrode made of a conductive material and formed at an outer surface of the nozzle; and a voltage supply for applying voltage to the main electrode.
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公开(公告)号：US20160185112A1
公开(公告)日：2016-06-30
申请号：US14910783
申请日：2014-08-06
Applicant: ENJET CO., LTD.
Inventor： Vu Dat Nguyen , Do-Young Byun , Yong Hee Jang
IPC: B41J2/14
CPC classification number: B41J2/06 , B41J2/005 , B41J2/035 , B41J2/07 , B41J2/08 , B41J29/38 , B41J2002/061 , B41J2002/062 , B41J2002/063
Abstract: Provided herein is a contact patterning apparatus comprising: a substrate; a fluid supply unit configured to supply fluid towards the substrate; a voltage applying unit electrically connected to the fluid supply unit, and configured to make the fluid from the fluid supply unit connected between the substrate and the fluid supply unit by applying a voltage to a surface of the fluid; and a control unit configured to adjust a level of the voltage being applied to the fluid such that the fluid is patterned on the substrate in a dots form or a continuous line form, thereby stably patterning a continuous line of a fine line width regardless of the viscosity of the fluid being used and the patterning velocity.
Abstract translation: 本文提供的接触图案形成装置包括：基板; 流体供应单元，被配置为向所述基板供应流体; 电连接单元，电连接到所述流体供应单元，并且被配置为通过向所述流体的表面施加电压来使来自所述流体供应单元的流体连接在所述基板和所述流体供应单元之间; 以及控制单元，被配置为调节施加到流体的电压的电平，使得流体以点形式或连续线形式在基板上图案化，从而稳定地构图细线宽度的连续线，而不管 使用的流体的粘度和图案化速度。
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Patent Agency Ranking
公开(公告)号：US20150062250A1
公开(公告)日：2015-03-05
申请号：US14468405
申请日：2014-08-26
Applicant: Enjet Co. Ltd.
Inventor： Do-Young Byun , Vu Dat Nguyen , Baek Hoon Seong
IPC: B41J2/06
CPC classification number: B41J2/06 , B05B5/00 , B05B5/08 , B41J2002/043
Abstract: There is disclosed an apparatus for spraying and patterning, using an electrostatic force, includes a nozzle to which a voltage is applied to exhaust ink, a droplet circulation chamber provided in one end of the nozzle, with a hole provided in one end to spray the ink exhausted from the nozzle based on a particle size of the droplet and to temporarily collect the not-sprayed ink, and a substrate for impacting the ink sprayed from the hole thereon by forming an electric field between the nozzle and the substrate.
Abstract translation: 公开了一种用于喷涂和图案化的装置，使用静电力，包括施加电压的喷嘴以排出油墨，设置在喷嘴的一端的液滴循环室，其一端设置有喷孔， 基于液滴的粒径从喷嘴排出的墨水，并暂时收集未喷墨的墨水;以及基板，用于通过在喷嘴和基板之间形成电场来冲击从孔喷射的墨水。
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公开(公告)号：US20240208213A1
公开(公告)日：2024-06-27
申请号：US18391753
申请日：2023-12-21
Applicant: ENJET CO. LTD.
Inventor： Do Young BYUN , Byungjik LIM , Shaheer MOHIUDDIN KHALIL , Baek Hoon SEONG , Jaewoo JOUNG , Jaeyong CHOI
Abstract: Disclosed is an inkjet printhead. The inkjet printhead with a plurality of nozzles to eject a liquid solution by an electrohydrodynamic method includes: a first electrode formed for each of the plurality of nozzles and applied with a voltage for ejecting the liquid solution by the electrohydrodynamic method; a first voltage controller configured to apply the voltage to the first electrode; and a second electrode placed between and spaced apart from the first electrodes formed in the nozzles and grounded to inhibit electric field interference between the nozzles.
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公开(公告)号：US20240131799A1
公开(公告)日：2024-04-25
申请号：US18058476
申请日：2022-11-23
Applicant: ENJET CO. LTD.
Inventor： Do Young Byun , Shaheer Mohiuddin Khalil , Vu Dat Nguyen , Baek Hoon Seong
IPC: B29C64/393 , B29C64/118 , B29C64/209 , B33Y30/00 , B33Y50/02 , G06K15/02 , G06K15/10
CPC classification number: B29C64/393 , B29C64/118 , B29C64/209 , B33Y30/00 , B33Y50/02 , G06K15/021 , G06K15/105
Abstract: Disclosed is a printing apparatus for a 3D surface, which performs printing by ejecting a droplet onto a 3D surface and controlling an electric field on an impact path of the droplet, the printing apparatus including: a ejecting environment information provider configured to provide ejecting environment information between a nozzle and an impact point; and a controller configured to predict a result of printing on an actual substrate by accumulating previous printing results according to printing conditions and the ejecting environment information into a database, and perform the printing on the 3D surface while changing the printing conditions provided by the database based on the ejecting environment information provided by the ejecting environment information provider.
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公开(公告)号：US20230094682A1
公开(公告)日：2023-03-30
申请号：US17645664
申请日：2021-12-22
Applicant: ENJET CO. LTD.
Inventor： Do Young Byun , Vu Dat Nguyen , Kwangsun Jeon
Abstract: The present disclosure relates to a printing apparatus with a plurality of nozzle heads and method for aligning a plurality of nozzle tips. The printing apparatus with a plurality of nozzle heads according to the present disclosure includes a first nozzle head having a first nozzle tip for discharging ink and a first moving part for moving the first nozzle tip, and disposed at one side of a working area on a substrate; a second nozzle head having a second nozzle tip for discharging ink and a second moving part for moving the second nozzle tip, and disposed at the other side of the working area on the substrate; and a first camera disposed above the substrate to observe the first nozzle tip and the second nozzle tip at the same time.
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公开(公告)号：US20200331270A1
公开(公告)日：2020-10-22
申请号：US16542885
申请日：2019-08-16
Applicant: ENJET CO. LTD.
Inventor： Do Young BYUN , Vu Dat NGUYEN , Yong Hee JANG
IPC: B41J2/14
Abstract: Disclosed is an induced electrohydrodynamic (EHD) jet printing apparatus including: a nozzle configured to discharge a fed solution to an opposite substrate; a main electrode contactlessly isolated from the solution inside the nozzle by an insulator; and a voltage supplier configured to apply voltage to the main electrode.
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