WO2012057536A2 - Procédé de fabrication d'un panneau tactile de type capacitif, et panneau tactile fabriqué par ce procédé - Google Patents

Procédé de fabrication d'un panneau tactile de type capacitif, et panneau tactile fabriqué par ce procédé Download PDF

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Publication number
WO2012057536A2
WO2012057536A2 PCT/KR2011/008060 KR2011008060W WO2012057536A2 WO 2012057536 A2 WO2012057536 A2 WO 2012057536A2 KR 2011008060 W KR2011008060 W KR 2011008060W WO 2012057536 A2 WO2012057536 A2 WO 2012057536A2
Authority
WO
WIPO (PCT)
Prior art keywords
axis
touch panel
insulator
axis electrostatic
capacitive touch
Prior art date
Application number
PCT/KR2011/008060
Other languages
English (en)
Korean (ko)
Other versions
WO2012057536A9 (fr
WO2012057536A3 (fr
Inventor
박준영
정주현
문형태
노수천
Original Assignee
주식회사 티메이
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.)
Filing date
Publication date
Application filed by 주식회사 티메이 filed Critical 주식회사 티메이
Priority claimed from KR1020110110263A external-priority patent/KR20120044268A/ko
Publication of WO2012057536A2 publication Critical patent/WO2012057536A2/fr
Publication of WO2012057536A3 publication Critical patent/WO2012057536A3/fr
Publication of WO2012057536A9 publication Critical patent/WO2012057536A9/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present invention relates to a method for manufacturing a capacitive touch panel and a touch panel manufactured by the same, and to a method for manufacturing a capacitive touch panel that realizes an X-axis pattern and a Y-axis pattern with one sheet of ITO film and a touch panel manufactured by the same. It is about.
  • a touch panel is an input device that can be easily used by anyone by touching a button with a finger to interactively and intuitively operate a computer.
  • the touch panel is a touch screen. It is an input device to perform.
  • the touch panel uses a resistive film type, a capacitive type film, an infrared type film, an ultrasonic type, and the like, and a resistive film type is currently used.
  • capacitive methods which is advantageous for this, will be increased.
  • Such a capacitive touch panel particularly a touch screen, has a structure in which an ITO made of a light-transmitting conductor on a transparent insulator film such as PET or glass, and a pad made of lead wire such as silver paste are bonded to the edge of the ITO. A layer or an insulator layer is added and laminated up and down.
  • the ITO is composed of X-axis ITO having X-axis electrostatic electrodes formed at equal intervals and Y-axis ITO having Y-axis electrostatic electrodes formed at equal intervals, so as to be stacked in multiple layers in the lamination process.
  • the touch screen formed as above is a controller that receives a touch signal according to a user's touch and outputs a coordinate signal.
  • Electrostatic electrodes have different electrical characteristics.
  • FIG. 1 is a diagram showing a conventional bottom pattern layer, and shows an X-axis pattern
  • FIG. 2 is a diagram showing a conventional Top pattern layer, and a Y-axis pattern.
  • a top pattern having the X-axis electrostatic electrode 10 and a bottom pattern having the Y-axis electrostatic electrode 20 are manufactured, respectively, as shown in FIGS. Prepared.
  • the touch panel completed by this manufacturing process is shown in FIG.
  • a top pattern having an X-axis electrostatic electrode 10 and a bottom pattern frequently having the Y-axis electrostatic electrode 20 are formed on the front of the panel. Then, connecting electrodes 30 and 40 were formed on one side.
  • the layer structure of the conventional capacitive touch panel is shown in FIG. 4.
  • the OCA must be added to the top of the ITO film, which is required because two ITO films are used.
  • the conventional touch panel has a disadvantage in that it is expensive because two sheets of ITO film and two sheets of OCA are used to make a single touch panel product.
  • the defect rate is measured for each pattern layer because the sheet by sheet method is used instead of the cell by cell method. Yield was not good by In particular, it is difficult to meet the alignment tolerance when laminating each floor, the yield is not good, tight tolerance management is difficult.
  • the present invention implements both the X-axis pattern and the Y-axis pattern with one sheet of ITO film to reduce the cost, the process is simplified, the capacitive touch which has a yield improvement effect due to the simplification of the process
  • An object of the present invention is to provide a method for manufacturing a panel and a touch panel manufactured thereby.
  • first axis pattern including a plurality of first axis electrostatic electrodes and a second axis pattern including a plurality of second axis electrostatic electrodes on the ITO film;
  • the coating of the insulator may include printing the insulator in one of an inkjet method, a reverse offset method, and a gravure method.
  • a conductive ink is used to connect the second shaft electrostatic electrodes in a bridge shape.
  • Is formed on the bottom of the OCA and comprises an ITO film having a plurality of first axis electrostatic electrode and second axis electrostatic electrode,
  • the first axis electrostatic electrode is electrically connected
  • An insulator is applied to a connection portion between the first axis electrostatic electrodes, and the second axis electrostatic electrodes are electrically connected to each other over the insulator.
  • the insulator is printed in one of an inkjet method, a reverse offset method, and a gravure method, and a conductive ink is formed in a bridge shape between the second axis electrostatic electrodes.
  • the capacitive touch panel of the present invention since the X-axis pattern and the Y-axis pattern are implemented in one sheet of ITO film, cost reduction effect and process can be simplified.
  • the effect of two ITO films can be obtained by raising the insulator on the X-axis ITO pattern and treating the conductive material thereon to shorten the Y-axis ITO pattern to have electrical characteristics.
  • Insulator printing is printed by inkjet method, reverse offset method and gravure printing method which can be printed with the lowest height, and then bridged by applying conductive ink with low visibility and low resistance on it. Can be improved.
  • FIG. 1 is a view showing an X-axis electrode pattern in a conventional capacitive touch panel.
  • FIG. 2 illustrates a Y-axis electrode pattern in a conventional capacitive touch panel.
  • FIG. 3 is a view illustrating a state in which an X-axis electrode pattern and a Y-axis electrode pattern are coalesced in a conventional capacitive touch panel.
  • FIG. 4 is a diagram illustrating a layer structure in a state in which an X-axis electrode pattern and a Y-axis electrode pattern are combined in a conventional capacitive touch panel.
  • FIG. 5 is a view showing the structure of a capacitive touch panel according to a first embodiment of the present invention.
  • 6 to 8 are diagrams showing the detailed structure of the circled portion of FIG. 5 in the capacitive touch panel according to the first embodiment of the present invention, showing each step according to the manufacturing method.
  • FIG. 9 is a view showing a layer structure of the capacitive touch panel of the present invention.
  • FIG. 10 illustrates a structure of a capacitive touch panel according to a second embodiment of the present invention.
  • FIG. 11 illustrates a detailed structure of a circled portion of FIG. 10 in the capacitive touch panel according to the second embodiment of the present invention.
  • FIG. 12 illustrates a side structure of a capacitive touch panel according to a second embodiment of the present invention.
  • FIG. 5 is a diagram illustrating a structure of a capacitive touch panel according to a first embodiment of the present invention.
  • the capacitive touch panel according to the first embodiment of the present invention is a touch panel having a window panel layer and an OCA, which is formed at the lower end of the OCA, and includes a plurality of X-axis electrostatic electrodes 100 and It includes an ITO film having a Y-axis electrostatic electrode (200).
  • the X-axis electrostatic electrode 100 is electrically connected by the first connecting portion 110 having a conductive material, and prints the insulator 300 on the first connecting portion 110 between the X electrostatic electrodes 100, and the insulator 300.
  • the Y-axis electrostatic electrodes 200 are electrically connected to each other.
  • the insulator 300 is printed in one of an inkjet method, a reverse offset method, and a gravure method, and forms the second connection part 210 by forming conductive ink in a bridge shape between the Y-axis electrostatic electrodes 200.
  • the ITO film is formed by depositing ITO (T) such as ITO on a light-transmitting insulator film such as PET or glass by a known method such as sputtering, and partially etching it to form an electrostatic electrode pattern.
  • T ITO
  • M may be deposited by a known method such as sputtering, and then partially etched to form lead wire-connection electrode patterns 30 and 40 corresponding to the lead wire and the connection electrode.
  • the lead wires or the connecting electrodes 30 and 40 may be manufactured by applying paste such as silver paste P.
  • the electrostatic electrodes may be etched together or partially. The pattern and the lead wire-connecting electrode pattern may be formed.
  • the X-axis and Y-axis electrostatic electrode patterns 100 and 200 are ITO layers, and the lead-connection electrode patterns 30 and 40 are ITO layers forming the X-axis and Y-axis electrostatic electrode patterns 100 and 200 ( It is preferable that it is a laminated structure which consists of the ITO layer T continuous with T) and the metal layer laminated
  • 6 to 8 are diagrams showing the detailed structure of the circled portion of FIG. 5 in the capacitive touch panel according to the first embodiment of the present invention, showing each step according to the manufacturing method.
  • an X-axis pattern including a plurality of X electrostatic electrodes 100 and a Y-axis pattern including a plurality of Y-axis electrostatic electrodes 200 are formed on an ITO film.
  • connection method may use a conventional method, and may be formed simultaneously with the X electrostatic electrode 100.
  • an insulator 300 is printed on the first connection part 110 between the X-axis electrostatic electrodes 100.
  • the printing method of the insulator 300 is printed by an inkjet method, a reverse offset method, a gravure printing method, and the like, which prints the height of the insulator as low as possible.
  • the insulator 300 is sufficiently printed between the Y-axis electrostatic electrodes 200 so that the first connecting portion 110 and the second connecting portion 210 are not electrically contacted.
  • the Y-axis electrostatic electrode 200 is electrically connected to each other.
  • the method of electrically connecting the Y-axis electrostatic electrode 200 is bridged by applying conductive ink having low visibility and low resistance. Simplification has a big effect on yield. It is also advantageous to adopt a contactless printing method that does not damage the ITO film during printing. This method is called a jumping method, and this jumping method is used when manufacturing an ITO film when manufacturing a capacitive touch panel.
  • the touch panel includes three window layers, an OCA layer, and an ITO layer, and the window layer and the OCA layer are similar to the conventional ones, and the ITO layer raises the insulator 300 on the X-axis pattern and is conductive thereon.
  • the Y-axis pattern can be shortened to have electrical characteristics with each other, thereby achieving the effect of two ITO films.
  • connection part 6 to 9 illustrate one connection part as an example, this structure is applied to the connection structure of all electrodes of all ITO layers.
  • FIG. 10 illustrates a structure of a capacitive touch panel according to a second embodiment of the present invention.
  • the capacitive touch panel according to the second exemplary embodiment of the present invention is a touch panel including a window panel layer and an OCA, and is formed at the bottom of the OCA and includes a plurality of X-axis electrostatic electrodes 100 and Y-axis. It includes an ITO film having an electrostatic electrode (200).
  • the plurality of Y-axis electrostatic electrodes 200 have a predetermined distance from each other, the plurality of X-axis electrostatic electrodes 100 are electrically connected without forming the first connecting portion 110 of the first embodiment. .
  • FIG. 11 is a view showing a detailed structure of a circled portion of FIG. 10 in the capacitive touch panel according to the second embodiment of the present invention
  • FIG. 12 is a side structure of the capacitive touch panel according to the second embodiment of the present invention. The figure shown.
  • the Y-axis electrostatic electrode 200 is printed as the insulator 300 across the X-axis electrostatic electrode 100, and conductive ink is connected to the insulator 300 in a bridge shape. To form a second connection portion 210.
  • the insulator (insulating material such as SiO 2 material) 300 is deposited between the Y-axis electrostatic electrodes 200 by deposition, and the conductive material (Cu, Cu Alloy, Ag, Ag Alloy, Ni) is placed on the insulator 300.
  • the conductive material Cu, Cu Alloy, Ag, Ag Alloy, Ni
  • Ni Alloy, Al, Al Alloy and a transparent conductive material such as AZO (Al-doped zinc oxide), IZO (Indium zinc oxide), ATO, ITO) can be used to apply a deposition method. Deposition can be performed using Sputter, E-beam, Ion-beam and Electron-beam methods.
  • the layer constituting the touch panel is composed of three layers, a window layer, an OCA layer, and an ITO layer, as shown in FIG. 9.
  • the capacitive touch panel of the present invention since the X-axis pattern and the Y-axis pattern are implemented in one sheet of ITO film, cost reduction effect and process can be simplified.
  • the effect of two ITO films can be obtained by raising the insulator on the X-axis ITO pattern and treating the conductive material thereon to shorten the Y-axis ITO pattern to have electrical characteristics.
  • Insulator printing is printed by inkjet method, reverse offset method and gravure printing method which can be printed with the lowest height, and then bridged by applying conductive ink with low visibility and low resistance on it. Can be improved.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Manufacture Of Switches (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un panneau tactile de type capacitif et un panneau tactile fabriqué par ce procédé. Le procédé comprend les étapes suivantes consistant : à former un motif de premier axe comprenant une pluralité d'électrodes électrostatiques de premier axe, et un motif de second axe comprenant une pluralité d'électrodes électrostatiques de second axe sur un film en ITO ; à interconnecter électriquement les électrodes électrostatiques de premier axe ; à imprimer un isolant sur une partie de connexion entre les électrodes électrostatiques de premier axe ; et à interconnecter électriquement les électrodes électrostatiques de second axe. Selon la présente invention, un motif d'axe X et un motif d'axe Y peuvent être formés sur le film en ITO unique, ce qui permet de réduire les coûts et de simplifier les processus.
PCT/KR2011/008060 2010-10-27 2011-10-27 Procédé de fabrication d'un panneau tactile de type capacitif, et panneau tactile fabriqué par ce procédé WO2012057536A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2010-0105234 2010-10-27
KR20100105234 2010-10-27
KR1020110110263A KR20120044268A (ko) 2010-10-27 2011-10-27 정전용량 터치패널의 제조방법 및 이에 의해 제조되는 터치패널
KR10-2011-0110263 2011-10-27

Publications (3)

Publication Number Publication Date
WO2012057536A2 true WO2012057536A2 (fr) 2012-05-03
WO2012057536A3 WO2012057536A3 (fr) 2012-06-21
WO2012057536A9 WO2012057536A9 (fr) 2012-08-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114654831A (zh) * 2022-03-17 2022-06-24 广东省载诚新材料有限公司 一种触控面板的贴合工艺及触控面板

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100010019A (ko) * 2008-07-21 2010-01-29 삼성모바일디스플레이주식회사 디스플레이 패널 및 그 제조 방법
JP2010231288A (ja) * 2009-03-26 2010-10-14 Seiko Epson Corp タッチパネルとその製造方法及び表示装置並びに電子機器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100010019A (ko) * 2008-07-21 2010-01-29 삼성모바일디스플레이주식회사 디스플레이 패널 및 그 제조 방법
JP2010231288A (ja) * 2009-03-26 2010-10-14 Seiko Epson Corp タッチパネルとその製造方法及び表示装置並びに電子機器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114654831A (zh) * 2022-03-17 2022-06-24 广东省载诚新材料有限公司 一种触控面板的贴合工艺及触控面板

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WO2012057536A9 (fr) 2012-08-23
WO2012057536A3 (fr) 2012-06-21

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