WO2016032081A1 - Appareil et procédé de réparation d'un dispositif d'affichage à l'aide d'une encre conductrice - Google Patents

Appareil et procédé de réparation d'un dispositif d'affichage à l'aide d'une encre conductrice Download PDF

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Publication number
WO2016032081A1
WO2016032081A1 PCT/KR2015/002934 KR2015002934W WO2016032081A1 WO 2016032081 A1 WO2016032081 A1 WO 2016032081A1 KR 2015002934 W KR2015002934 W KR 2015002934W WO 2016032081 A1 WO2016032081 A1 WO 2016032081A1
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WO
WIPO (PCT)
Prior art keywords
conductive ink
nozzle
substrate
control unit
voltage
Prior art date
Application number
PCT/KR2015/002934
Other languages
English (en)
Korean (ko)
Inventor
김선주
이승조
김현태
Original Assignee
주식회사 코윈디에스티
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 주식회사 코윈디에스티 filed Critical 주식회사 코윈디에스티
Priority to CN201580045984.8A priority Critical patent/CN106794477B/zh
Publication of WO2016032081A1 publication Critical patent/WO2016032081A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/005—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means the high voltage supplied to an electrostatic spraying apparatus being adjustable during spraying operation, e.g. for modifying spray width, droplet size
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • Embodiments of the present invention relate to display repair apparatus and methods using conductive inks.
  • the present invention is an advanced technology research center (ATC) project (problem: 1 ⁇ m line width for rollable OLED) conducted by Kowin DST Co., Ltd. EHD Direct Repair Technology Development].
  • ATC advanced technology research center
  • conductive wiring forming methods are mainly used for etching, screen printing, and vacuum deposition.
  • internal electrode formation in display fields such as FED, PDP, LCD, etc.
  • Various metal pastes are used for this purpose.
  • Au, Ag, Cu, Pt, Re, Al, Fe, Ni, etc. can be used, but Au, Ag, Cu are mainly studied by electrical properties.
  • Silver (Ag) coatings have played a very important role in the building Roy glass market for the last 20 years, and recently, such as selective solar control glass, transparent electrode for display, automotive heating glass, automotive glass antenna, etc. Use is increasing greatly.
  • As the conductive coating method a sputtering method and an electroless plating method are frequently used.
  • this coating method has a number of limitations due to the limitations of the thickness of the coating film and the method.
  • Sputtering is known to occur in the oxygen atmosphere at room temperature (agglomerate), and the plating method also occurs in the process of reducing the metal ions (agglomerate).
  • Agglomerate is a phenomenon caused by the movement of atoms and pores during microstructural change to minimize energy on the surface of the coating during heat treatment. As agglomerate progresses, damages such as pores and hillocks occur on the surface, thereby increasing the resistance of the coating layer and lowering electrical properties.
  • the integration of the deposited silver (Ag) coating film is a difficult process and the physical property is a reason to slow the utilization as a wiring material.
  • the conductive ink When an open defect of the display panel occurs, the conductive ink is generally discharged to the area where the open defect has occurred to remove the open defect through wiring.
  • the present invention has been made to solve the above-described problem, and is intended to enable defect-free wiring by jetting conductive ink upon repair of an open defect of a display panel.
  • the present invention is intended to enable the implementation of a minimum line width of 1 ⁇ m without preventing the spray phenomenon, disconnection section or spread phenomenon of the conductive ink.
  • a display repairing method using conductive ink includes: a pressure control unit supplying the conductive ink by applying pressure to an ink storage unit in which the conductive ink is stored; A nozzle for discharging the conductive ink; A stage on which the substrate on which the discharged conductive ink is applied is disposed; And applying a DC voltage to the nozzle to apply a conductive ink on the substrate in a line type, and applying a pulse voltage to the nozzle on the linearly applied conductive ink. And a voltage controller configured to apply the conductive ink in a drop type.
  • the movement control unit for moving the stage horizontally or vertically may further include.
  • the movement control unit moves the stage vertically to bring the nozzle closer to the substrate than the initial position.
  • the movement control unit may move the stage vertically to separate the conductive ink from the linear application.
  • a laser distance measuring device for measuring the distance between the substrate and the nozzle may further include.
  • the laser distance measuring device comprises a laser diode for emitting a laser; And a laser position sensor configured to receive the emitted laser and measure a distance between the substrate and the nozzle.
  • the conductive ink may include a polarized solvent and a conductive metal material.
  • the conductive ink may connect the electrode and the electrode.
  • a display repair method using conductive ink includes a first step of supplying the conductive ink by applying pressure to an ink storage unit in which a pressure controller stores the conductive ink; A second step of applying a DC voltage to the nozzle to which the voltage controller is fixed to the stage and discharges the conductive ink to apply a conductive ink on a substrate in a line type; And applying a pulse voltage to the nozzle by the voltage controller to apply the conductive ink in a drop type onto the linearly applied conductive ink.
  • the movement control unit moves the stage vertically to initially position the nozzle on the substrate. Can be closer.
  • the movement control part moves the stage vertically.
  • the conductive ink is applied in a linear manner, it can be applied with more separation.
  • defect-free wiring is possible at the time of jetting conductive ink for repairing an open defect of a display panel.
  • a spray line, a disconnection section, or a spread phenomenon of the conductive ink may be prevented and a minimum line width of 1 ⁇ m may be realized.
  • FIG. 1 is a view showing a display repair apparatus using a conductive ink according to an embodiment of the present invention.
  • FIGS. 2 to 8 are views for explaining a display repair method using a conductive ink according to an embodiment of the present invention.
  • FIG. 9 is a view for explaining the operating principle of the display repairing apparatus and method using a conductive ink according to an embodiment of the present invention.
  • FIGS. 10 to 13 are views for explaining the application result of the conductive ink according to the display repairing apparatus and method using the conductive ink according to an embodiment of the present invention.
  • FIG. 1 is a view showing a display repair apparatus using a conductive ink according to an embodiment of the present invention.
  • a display repair apparatus using a conductive ink includes a pressure controller 120, a nozzle 130, a stage 150, and a voltage controller 160.
  • the apparatus may further include a movement controller 165 and laser distance measuring devices 180 and 185.
  • the pressure controller 120 supplies the conductive ink by applying pressure to the ink storage unit 110 in which the conductive ink is stored, and the nozzle 130 discharges the conductive ink.
  • conductive ink is stored in the ink storage unit 110, and conductive ink stored in the ink storage unit 110 is discharged through the nozzle 130 under the control of the pressure controller 120. do.
  • the conductive ink may include a polarized solvent and a conductive metal material.
  • the conductive ink discharged through the nozzle 130 is applied onto the substrate 140 placed on the stage 150.
  • the voltage controller 160 applies the voltage to the nozzle 130 to apply the conductive ink
  • the conductive ink may include a polarized solvent and a conductive metal material.
  • the voltage controller 160 applies conductive ink in a line type on the substrate 140, and drops the conductive ink again on the linearly applied conductive ink. type) can be applied.
  • the voltage controller 160 applies a DC voltage to the nozzle 130 to apply conductive ink on the substrate 140 in a line type, and the nozzle ( The conductive ink may be applied in a drop type onto the linearly applied conductive ink by applying a pulse voltage to 130.
  • the stage 150 on which the substrate 140 is placed may be moved by the movement controller 165 for moving the stage 150 horizontally or vertically.
  • the movement controller 160 moves the stage 150 vertically to the nozzle 140 on the substrate 140.
  • the movement control unit 165 moves the stage 150 to a position closer to the initial position. By moving vertically, the conductive ink may be spaced apart from the linear coating to apply the conductive ink.
  • laser distance measuring devices 180 and 185 may be used when measuring the distance between the substrate 140 and the nozzle 130.
  • the laser distance measuring apparatuses 180 and 185 measure the distance between the substrate 140 and the nozzle 130 by receiving the laser diode 180 and the emitted laser.
  • the laser position sensor 185 may be configured.
  • FIGS. 2 to 8 are views for explaining a display repair method using a conductive ink according to an embodiment of the present invention.
  • the pressure controller 120 supplies the conductive ink by applying pressure to the ink storage unit 110 in which the conductive ink is stored.
  • the voltage controller 160 is fixed to the stage 150 to apply a DC voltage to the nozzle 130 for discharging the conductive ink, thereby as shown in FIGS. 2 and 3, the substrate 140.
  • the conductive ink 145 is coated on the line in a linear type, and the applied voltage is a direct current voltage as shown in FIG. 4.
  • FIG. 2 shows a cross-sectional view of the conductive ink 145 applied linearly
  • FIG. 3 shows a top view of the conductive ink 145 applied thereto, as shown in FIGS. 2 and 3.
  • the conductive ink 145 is applied to connect the electrode 141 and the electrode 141.
  • the movement controller 165 moves the stage 150 vertically to move the nozzle to the substrate.
  • the conductive ink 145 may be applied closer to the initial position.
  • the voltage controller 160 applies a pulse voltage to the nozzle 130 to apply the conductive voltage on the linearly applied conductive ink 145.
  • Ink 146 is applied in a drop type, wherein the applied voltage applies a pulse voltage as shown in FIG.
  • FIG. 5 is a cross-sectional view of the conductive ink 165 coated in a drop shape
  • FIG. 3 is a top view of the conductive ink 146 applied thereto. As shown in FIGS. 2 and 3, the drop is shown.
  • the conductive ink 146 of the mold connects the electrode 141 and the electrode 141, and is coated on the linear conductive ink 145.
  • the movement controller 165 moves the stage 150 vertically.
  • the drop type conductive ink 146 may be applied.
  • a drop type conductive ink may be additionally applied onto the drop type conductive ink 146 applied as described above to form a thicker layer of conductive ink 146.
  • FIG. 9 is a view for explaining the operating principle of the display repairing apparatus and method using a conductive ink according to an embodiment of the present invention.
  • the pressure controller 120 applies the constant pressure 210 and the voltage controller 160 applies the voltage 220, the polarized solvent 231 and the conductive metal material 232 are discharged through the nozzle 130. do.
  • the polar solvent 231 has a negative electrode ( ⁇ ), and the conductive metal material 232 is made of a metal material such as silver (Ag) and has a positive electrode (+).
  • the voltage controller 160 applies a DC voltage to the nozzle 130
  • the conductive ink 145 is applied to the substrate 140 on the stage 150 in a line type.
  • the conductive ink 146 may be applied in a drop type onto the linearly coated conductive ink 145.
  • FIGS. 10 to 13 are views for explaining the application result of the conductive ink according to the display repairing apparatus and method using the conductive ink according to an embodiment of the present invention.
  • FIGS. 10 and 12 are diagrams illustrating a result of applying a conductive ink according to the prior art
  • FIG. 13 is a diagram illustrating a result of applying a conductive ink according to an embodiment of the present invention.
  • a spray phenomenon occurs as shown in FIG. 10. .
  • the conductive ink is poured at the first point where the conductive ink is applied as shown in FIG. 11.
  • the width of some sections may be thickened, and a section may be disconnected because the drop of the conductive ink is not uniform.
  • the conductive ink when the conductive ink is applied to the substrate in a line (line type), and the conductive ink is applied in a drop type (drop type) on the linearly applied conductive ink As shown in FIGS. 12 and 13, no spray, break, or spread of the applied conductive ink occurs.
  • defect-free wiring is possible at the time of jetting conductive ink for repairing open defects of the display panel.
  • a spray line, a disconnection section, or a spread phenomenon of the conductive ink may be prevented and a minimum line width of 1 ⁇ m may be realized.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

La présente invention concerne un appareil et un procédé permettant de réparer un dispositif d'affichage à l'aide d'une encre conductrice. L'appareil permettant de réparer un dispositif d'affichage à l'aide d'une encre conductrice selon la présente invention comprend : une unité de commande de pression pour alimenter l'encre conductrice par application d'une pression à une unité de stockage d'encre dans laquelle l'encre conductrice est stockée ; une buse permettant de décharger l'encre conductrice ; un étage sur lequel un substrat à revêtir avec l'encre conductrice déchargée est placé ; et une unité de commande de tension pour appliquer l'encre conductrice sur le substrat dans un type de ligne par application d'une tension de courant direct (CD) à la buse, et un revêtement, sur l'encre conductrice appliquée dans le type de ligne, l'encre conductrice dans un type de goutte par l'application d'une tension d'impulsion à la buse.
PCT/KR2015/002934 2014-08-26 2015-03-25 Appareil et procédé de réparation d'un dispositif d'affichage à l'aide d'une encre conductrice WO2016032081A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201580045984.8A CN106794477B (zh) 2014-08-26 2015-03-25 使用导电性油墨的显示器修理装置及方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140111210A KR101549672B1 (ko) 2014-08-26 2014-08-26 전도성 잉크를 사용하는 디스플레이 수리 장치 및 방법
KR10-2014-0111210 2014-08-26

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WO2016032081A1 true WO2016032081A1 (fr) 2016-03-03

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KR (1) KR101549672B1 (fr)
CN (1) CN106794477B (fr)
TW (1) TWI609610B (fr)
WO (1) WO2016032081A1 (fr)

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Publication number Priority date Publication date Assignee Title
EP4053618A4 (fr) * 2019-10-29 2023-09-06 Samsung Display Co., Ltd. Dispositif et procédé de réparation de panneau
KR102301443B1 (ko) 2020-01-28 2021-09-14 주식회사 코윈디에스티 디스플레이 패널의 리페어 방법 및 이를 적용한 디스플레이 패널 구조

Citations (3)

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Publication number Priority date Publication date Assignee Title
KR20040086420A (ko) * 2002-02-21 2004-10-08 도꾸리쯔교세이호진 상교기쥬쯔 소고겡뀨죠 초미세 유체 제트장치
JP2006261228A (ja) * 2005-03-15 2006-09-28 Kitakyushu Foundation For The Advancement Of Industry Science & Technology 回路基板用配線パターン形成装置および配線パターンの補修方法
KR101425855B1 (ko) * 2013-02-21 2014-08-14 서울대학교산학협력단 금속 유기 전구체를 포함하는 전도성 잉크 조성물 및 이를 이용한 금속배선 형성방법

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JP2001088306A (ja) 1999-09-24 2001-04-03 Dainippon Printing Co Ltd 電界ジェットによる特定の電気伝導率を有する液体の付着方法
JP3967296B2 (ja) * 2003-08-08 2007-08-29 シャープ株式会社 静電吸引型流体吐出方法及びその装置
CN100399152C (zh) * 2006-02-27 2008-07-02 友达光电股份有限公司 透明导电层的修补方法及其结构
JP4018120B2 (ja) * 2006-05-12 2007-12-05 シャープ株式会社 液滴吐出描画装置
CN101493586A (zh) * 2008-01-25 2009-07-29 东捷科技股份有限公司 像素元件修补系统
US9198299B2 (en) * 2012-12-11 2015-11-24 Sharp Laboratories Of America, Inc. Electrohydrodynamic (EHD) printing for the defect repair of contact printed circuits

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040086420A (ko) * 2002-02-21 2004-10-08 도꾸리쯔교세이호진 상교기쥬쯔 소고겡뀨죠 초미세 유체 제트장치
JP2006261228A (ja) * 2005-03-15 2006-09-28 Kitakyushu Foundation For The Advancement Of Industry Science & Technology 回路基板用配線パターン形成装置および配線パターンの補修方法
KR101425855B1 (ko) * 2013-02-21 2014-08-14 서울대학교산학협력단 금속 유기 전구체를 포함하는 전도성 잉크 조성물 및 이를 이용한 금속배선 형성방법

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Publication number Publication date
KR101549672B1 (ko) 2015-09-03
TW201607775A (zh) 2016-03-01
CN106794477B (zh) 2019-12-13
CN106794477A (zh) 2017-05-31
TWI609610B (zh) 2017-12-21

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