WO2014178546A1 - Panneau tactile et méthode de fabrication de celui-ci - Google Patents

Panneau tactile et méthode de fabrication de celui-ci Download PDF

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Publication number
WO2014178546A1
WO2014178546A1 PCT/KR2014/003047 KR2014003047W WO2014178546A1 WO 2014178546 A1 WO2014178546 A1 WO 2014178546A1 KR 2014003047 W KR2014003047 W KR 2014003047W WO 2014178546 A1 WO2014178546 A1 WO 2014178546A1
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WIPO (PCT)
Prior art keywords
touch panel
electrode
touch
pattern
transparent conductive
Prior art date
Application number
PCT/KR2014/003047
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English (en)
Korean (ko)
Inventor
박준영
정주현
송영진
노수천
허용
이성림
장성욱
Original Assignee
주식회사 티메이
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Application filed by 주식회사 티메이 filed Critical 주식회사 티메이
Publication of WO2014178546A1 publication Critical patent/WO2014178546A1/fr

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    • 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
    • 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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • 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 of manufacturing a touch panel, and more particularly, to a touch panel and a method of manufacturing the wiring electrode formed of a transparent conductive layer (Indium Tin Oxide, ITO).
  • a transparent conductive layer Indium Tin Oxide, ITO
  • the touch panel is an input device that can be easily used by anyone by interactively and intuitively operating a computer or the like by touching a button with a finger.
  • the touch panel is used in the resistive method, capacitive method, infrared method, ultrasonic method, etc. according to the method of sensing the touch, and the resistive method is currently used a lot, but it is advantageous for durability and light and simple properties in the future The use of capacitive methods will be increased.
  • the capacitive touch panel in particular, the touch screen, has a structure of transparent conductive layer (Indium Tin Oxide (ITO)) made of a transparent conductor on a transparent insulator film such as polyethylene terephthalate (PET) or glass, and an edge of ITO.
  • ITO Indium Tin Oxide
  • PET polyethylene terephthalate
  • the electrostatic electrode which consists of lead wires, such as silver paste, a metal, and various metals, is laminated up and down by adding an adhesive layer or an insulator layer.
  • ITO is composed of the X-axis X-axis transmission electrode formed in the form of diamond-shaped equal intervals or bars in a variety of shapes, and the Y-axis YTO of the Y-axis receiving electrode of the Y-axis formed in the same shape to be laminated .
  • 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.
  • the electrostatic electrodes arranged side by side on the X axis or the Y axis are arranged at different distances from the lead wire. Since different electrostatic electrodes are disposed between them, each electrostatic electrode has different electrical characteristics when viewed from the part where the lead wire is connected.
  • FIG. 1 is a view showing an X-axis electrode pattern and a Y-axis electrode pattern in a conventional capacitive touch panel.
  • a conventional touch panel is manufactured by fabricating a bottom pattern 210 having an X-axis electrostatic electrode and a top pattern 200 having a Y-axis electrostatic electrode, laminating layers, and attaching windows. .
  • a plurality of X-axis or Y-axis electrostatic electrodes in the window region of the touch panel form a transparent electrode pattern 122 of a transparent conductive layer, and each of the X-axis or Y
  • the top pattern 200 and the bottom pattern 210 are respectively formed by including the wiring electrode pattern 132 of the metal layer connected to one end of the axial electrostatic electrode.
  • an antioxidant treatment is performed to prevent oxidation of the metal after the primary etching, but there is a problem in that the residue of the metal layer is generated when the antioxidant is not removed or is removed late in the secondary etching.
  • the residual phenomenon of the metal layer causes metal, not a transparent material, to remain in the window region of the touch panel, resulting in a defect of the touch panel.
  • the touch panel forms a transparent conductive layer in the window area and forms a metal layer in the wiring electrode area
  • a problem may occur in that the reliability of the touch panel, in which a step occurs on the surfaces of the window area and the wiring electrode area, may be degraded.
  • the present invention forms a wiring electrode as a transparent conductive layer rather than a metal to form a layer in which the electrostatic electrode and the wiring electrode exist as a transparent conductive layer, thereby simplifying the process and improving the productivity of the touch panel. It is an object of the present invention to provide a touch panel and a method of manufacturing the same.
  • a method of manufacturing a touch panel comprises a first insulating layer made of an organic insulator or an inorganic insulator and a first transparent conductive layer formed on the upper surface of the first insulating layer 1 preparing a pad for a touch panel;
  • a plurality of first electrostatic electrodes which are touch pattern portions of portions of the first transparent conductive layer of the first touch panel pad corresponding to the window regions, are formed and connected to one end of each of the first electrostatic electrodes, except for the window regions. Selectively removing the first transparent conductive layer to form a first bus electrode in an edge region, thereby forming a touch pattern of the first electrostatic electrode and a lead wire pattern of the first bus electrode.
  • a touch panel pad including an insulating layer made of an organic insulator or an inorganic insulator and a transparent conductive layer formed on an upper surface of the insulating layer;
  • the transparent conductive layer of the pad for the touch panel is selectively removed to form a first bus electrode connected to one end of each X-axis electrostatic electrode and a second bus electrode connected to one end of each Y-axis electrostatic electrode. And forming touch patterns of the plurality of X-axis electrostatic electrodes and the plurality of Y-axis electrostatic electrodes and the lead wire patterns of the first bus electrode and the second bus electrode at one time, wherein the driving voltage of the touch panel is applied. Electrodes (Trans, Tx) and sensing electrodes (Receive, Rx) for sensing whether the touch pattern is touched and the touch position as a change in voltage value are formed on the transparent conductive layer at once.
  • a touch panel includes a first insulating layer formed of an organic insulator or an inorganic insulator and a top surface of the first insulating layer, and is a conductive material made of a transparent material as a touch pattern part corresponding to a window region of the touch panel. And a touch pattern of a plurality of first electrostatic electrodes spaced apart from each other by a predetermined distance, and connected to one end of each of the first electrostatic electrodes to form a lead wire pattern of a first bus electrode of an edge region excluding the window region.
  • a first touch panel pad made of a first transparent conductive layer; And
  • a plurality of second insulating layers made of an organic insulator or an inorganic insulator and a touch pattern portion formed on an upper surface of the second insulating layer and corresponding to the window region of the touch panel are conductive materials of a transparent material and formed to be spaced apart from each other by a predetermined distance.
  • a second touch panel pad made of a metal layer is disposed on the upper surface of the second transparent conductive layer.
  • a touch panel is formed on an upper surface of a first insulating layer and an first insulating layer made of an organic insulator or an inorganic insulator, and is a conductive material of a transparent material as a part of a touch pattern corresponding to a window region of the touch panel.
  • a first transparent touch pattern of a plurality of first electrostatic electrodes formed to be spaced apart from each other, and a first wire electrode connected to one end of each of the first electrostatic electrodes to form a lead wire pattern of a first bus electrode of an edge region excluding a window region
  • a first touch panel pad made of a conductive layer;
  • a second touch panel comprising a touch pattern of a second electrostatic electrode and a second transparent conductive layer connected to one end of each second electrostatic electrode to form a lead wire pattern of a second bus electrode in an edge region excluding a window region A pad
  • a sensing electrode that detects whether the touch pattern touches the touch pattern and the touch position as a change in voltage value or a driving electrode to which the driving voltage of the touch panel is applied. , Tx), and the second touch panel pad attached to the lower surface of the first touch panel pad is the driving electrode (Transfer, Tx) or the sensing electrode (Receive, Rx).
  • Touch panel is an insulating layer made of an organic insulator or an inorganic insulator; And a plurality of X-axis electrostatic electrodes and each of the X-axis electrostatic electrodes formed on the upper surface of the insulating layer and formed of a conductive material made of a transparent material and spaced apart from each other by a touch pattern portion corresponding to the window region of the touch panel. Forming a touch pattern of a plurality of Y-axis electrostatic electrodes that cross each other,
  • a transparent conductive layer forming a first lead line pattern of a first bus electrode connected to one end of each X-axis electrostatic electrode and a second lead line pattern of a second bus electrode connected to one end of each of the Y-axis electrostatic electrodes Including;
  • the present invention forms the wiring electrode with ITO rather than metal, so that the electrostatic electrode and the wiring electrode can be manufactured with ITO, thereby simplifying the manufacturing process.
  • the present invention since only a layer having an ITO thickness exists in the top pattern or the bottom pattern, tolerance management between the two layers is easy and the fine pattern can be implemented.
  • the present invention can reduce the amount of chemicals to the process that only the ITO in the manner that the metal and ITO must be etched, thereby improving the productivity of the touch panel.
  • the electrostatic electrode and the wiring electrode can be etched at the same time with one etching solution, thereby reducing the process and chemicals and the damage caused by the chemicals.
  • FIG. 1 is a view showing an X-axis electrode pattern and a Y-axis electrode pattern in a conventional capacitive touch panel.
  • FIG. 2 is a diagram illustrating a structure of a touch panel according to a first embodiment of the present invention.
  • FIG. 3 is a diagram illustrating a manufacturing method of a top pattern of a touch panel according to a first exemplary embodiment of the present invention.
  • FIG. 4 is a view illustrating an embodiment of a method of manufacturing a bottom pattern of a touch panel according to a first embodiment of the present invention.
  • FIG. 5 is a view showing another embodiment of a method of manufacturing a bottom pattern of a touch panel according to a first embodiment of the present invention.
  • FIG. 6 is a diagram illustrating a structure of a touch panel according to a second embodiment of the present invention.
  • the present invention exemplifies a structure and a manufacturing method of the pad for the touch panel, but attaches the glass to the pad for the touch panel manufactured according to the present invention using an optical clear adhesive (OCA).
  • OCA optical clear adhesive
  • the touch panel pad of the present invention can be regarded as a touch panel in a broad sense.
  • Such a touch panel is preferably applied to the mutual capacitance method.
  • FIG. 2 is a diagram illustrating a structure of a touch panel according to a first embodiment of the present invention.
  • FIG. 2 illustrates a touch panel according to a first embodiment of the present invention having a top pattern 200 and an X-axis electrostatic electrode of a pad for a first touch panel having a Y-axis electrostatic electrode at a portion where a cover glass is stacked.
  • the bottom pattern 210 of the second touch panel pad is manufactured, and the top pattern 200 and the bottom pattern 210 are laminated using an optical clear adhesive (OCA), and then glass is attached. Manufacture through.
  • OCA optical clear adhesive
  • the top pattern 200 and the bottom pattern 210 are sensing electrodes (Receive, Rx) for detecting whether the touch panel is touched and the touch position as a change in voltage value, or a driving electrode to which the driving voltage of the touch panel is applied. , Tx).
  • the sensing electrode senses a change in the voltage value of the mutual cap to detect whether or not the touch is performed. The touch position is detected.
  • the top pattern 200 is a pad for a touch panel in which cover glass is stacked, and includes a transparent electrode pattern 122 and a wiring electrode pattern 124 connected thereto, and the transparent electrode pattern 122 and the wiring electrode pattern ( 124 is formed by forming a transparent conductive layer (Indium Tin Oxide, ITO) (120) on the insulating layer 110, respectively.
  • ITO Indium Tin Oxide
  • the insulating layer 110 is formed of an organic or inorganic insulator of a transparent material
  • the organic insulator is polyimide or polyethylene terephthalate (PET), polyethylenenaphthalate (PEN), polycarbonate (Polycarbonate, PC), acrylic plastic material
  • the inorganic insulator is made of glass material and optically treated glass material.
  • the transparent conductive layer 120 is formed of a conductive material of a transparent material such as transparent conducting oxide (TCO), and specifically includes ITO or Indium Zinc Oxide (IZO), or ITO, IZO, SnO 2 , AZO , Carbon nanotubes (CNT), graphene (Graphene), conductive polymers, silver nanowires (Silver Nanowires, AGNW) is formed of a transparent conductive material.
  • TCO transparent conducting oxide
  • the transparent electrode pattern 122 represents a plurality of Y-axis electrostatic electrodes (transparent conductive layer 120) formed at a predetermined distance from a portion corresponding to the window area (the area where the screen is displayed) of the touch panel, and is touched by a user. Represents a pattern area.
  • the wiring electrode pattern 124 is connected to one end of each of the Y-axis electrostatic electrodes of the transparent electrode pattern 122 and forms metal conductive wires (consisting of the transparent conductive layer 120) in the edge region excluding the window region of the touch panel. Circuit that represents.
  • the wiring electrode pattern 124 is connected outwardly from one end of each Y-axis electrostatic electrode to be connected to the lead wire electrode of the bus electrode for detecting and controlling the user's touch pattern and the one end of the lead wire electrode and exposed to the outside, and the flexible circuit
  • the metal electrode portion of the FPCB bonding region is coupled to the substrate (Flexible Printed Circuit Board, FPCB).
  • the resistance of the top pattern 200 may be less affected by the resistance when the ITO 120 is formed. .
  • the bottom pattern 210 of the first embodiment of the present invention is a touch panel pad attached to the lower surface of the touch panel pad of the top pattern 200 by using an OCA.
  • the transparent electrode pattern 122 is formed of a transparent conductive layer 120 on the upper surface of the insulating layer 110, and the wiring electrode pattern 132 is formed on the upper surface of the insulating layer 110.
  • the front layer 120 and the transparent conductive layer 120 are formed on the upper surface of the metal layer 130.
  • the metal layer 130 may use a variety of metals of low sheet resistance, and considering the ease of manufacture and electrical conductivity, copper or aluminum, silver, gold, platinum, copper alloy, silver alloy, nickel alloy, nickel, gold alloy, aluminum It is preferable to use an alloy or the like.
  • the method for forming the metal layer 130 on the insulating layer 110 may use a known method such as laminating, vapor deposition, sputtering, coating.
  • the transparent electrode pattern 122 represents a plurality of X-axis electrostatic electrodes (transparent conductive layer 120) formed to be spaced apart from each other by a portion corresponding to the window area (the area where the screen is displayed) of the touch panel.
  • the touch pattern area is shown.
  • the wiring electrode pattern 132 is a circuit connected to one end of each of the X-axis electrostatic electrodes of the transparent electrode pattern 122 and represents a metal lead (consisting of the metal layer 130) of the edge region except for the window region of the touch panel. to be.
  • the wiring electrode pattern 132 is connected outwardly from one end of each X-axis electrostatic electrode to be connected to the lead wire electrode of the bus electrode for detecting and controlling the user's touch pattern and the one end of the lead wire electrode and exposed to the outside, and the flexible circuit
  • the metal electrode portion of the FPCB bonding region is coupled to the substrate (Flexible Printed Circuit Board, FPCB).
  • the thicknesses of the insulating layer 110, the transparent conductive layer 120, and the metal layer 130 are as follows for durability of the panel, ease of manufacturing during etching of each layer, and minimization of steps.
  • the thickness of the insulating layer 110 is 10 to 1000 ⁇ m for the organic insulator, and 100 to 3000 ⁇ m for the inorganic insulator.
  • the transparent conductive layer 120 has a thickness of 0.005 to 0.1 ⁇ m, and the metal layer 130 has a thickness of 0.01 to 10 ⁇ m.
  • the thickness of the metal layer 130 is 0.5 to 0.6 ⁇ m, and when the transparent conductive layer 120 is ITO, the thickness of the ITO is 0.01 to 0.02 ⁇ m, which is good in terms of excellent etching property and pattern forming property,
  • the thickness of the insulating layer 110 is 50 to 175 ⁇ m in the case of an organic insulator, which is good for fabrication of the side and compact size device.
  • a printed circuit board including a plurality of touch controllers (not shown) for controlling application signals and detection signals to a plurality of X-axis electrostatic electrodes and a plurality of Y-axis electrostatic electrodes is wired. It is connected to and attached to the electrode patterns 124 and 132.
  • the plurality of touch controllers detect a voltage signal on the Y-axis electrostatic electrodes, a driving voltage is applied to the X-axis electrostatic electrodes, and detect whether or not a touch is made and a touch position according to a change in the detected voltage signal.
  • the detection of the voltage signal to the X-axis electrostatic electrodes and the driving voltage may be applied to the Y-axis electrostatic electrodes.
  • the wiring electrode pattern 124 of the top pattern 122 is composed of the transparent conductive layer 120, the Y-axis of the top pattern 200 may be less affected by resistance. Detecting a voltage signal on the electrostatic electrodes (sensing electrode) has an advantage in driving the touch panel.
  • FIG. 3 is a diagram illustrating a manufacturing method of a top pattern of a touch panel according to a first exemplary embodiment of the present invention.
  • the transparent conductive layer 120 is formed on the top surface of the insulating layer 110.
  • a display such as an LCD should be shown, and thus the insulating layer 110 and the transparent conductive layer 120 are made of a light-transmissive material.
  • the first photosensitive material 140 is attached to a portion of the top surface of the transparent conductive layer 120 to be removed by the photolithography process, and the transparent electrode pattern 122 and the wiring electrode are removed.
  • the transparent conductive layer 120 is removed and the first photosensitive material 140 is removed for the remaining portions except for the portion (combination) corresponding to the pattern 124 (ITO etching process).
  • the width of the transparent conductive layer 120 is set to 0.2 to 10 ⁇ m.
  • Photolithography processes dry film lamination, exposure, development, ITO etching, and stripping processes.
  • the first photosensitive material 140 is patterned (exposure process). ) After the patterned first photosensitive material 140 is formed using a weak alkali solution (developing process), an ITO etching and peeling process are performed.
  • the process of forming the first photosensitive material 140 on the transparent conductive layer 120 is a laminating process of a dry film, a coating process in the case of using a liquid type silicon, epoxy material, SiO 2 , TiO 2 If an insulating material is used, a deposition process is used.
  • the present invention illustrates a patterned artwork film
  • the present invention is not limited thereto. Any pattern tool having a pattern may be used, and an exposure process may be performed using equipment that directly implements the pattern without the pattern tool. It may be.
  • embodiments of the present invention illustrate a photolithography process
  • the present invention is not limited thereto and may be implemented in various processes such as a gravure offset method, silver printing, an imprint method, and an inkjet printing method.
  • the top pattern 200 has a single layer structure of the transparent electrode pattern 122, which is a touch pattern portion, and the wiring electrode pattern 124, which is a bus electrode portion, only of the transparent conductive layer 120.
  • FIG. 4 is a view illustrating an embodiment of a method of manufacturing a bottom pattern of a touch panel according to a first embodiment of the present invention.
  • the transparent conductive layer 120 is formed on the upper surface of the insulating layer 110, and the transparent conductive layer is formed.
  • the metal layer 130 is formed on the upper surface of the layer 120.
  • the method for forming the metal layer 130 on the insulating layer 110 may be a known method such as laminating, vapor deposition, coating.
  • the present invention provides the second photosensitive material 150 by the photolithography process to form the transparent conductive layer 120 and the metal layer 130 on the upper surface of the metal layer 130.
  • Is attached to the portion to be removed at the same time and the transparent conductive layer 120 and the metal layer 130 are simultaneously applied to the remaining portions except for the portions (combinations) corresponding to the transparent electrode pattern 122 and the wiring electrode pattern 132.
  • To remove the second photosensitive material 150 (primary metal + ITO etching process). That is, the photolithography process is performed by dry film laminating, exposure, development, metal etching, ITO etching, peeling process.
  • the second photosensitive material 150 is patterned (exposure process), After the patterned second photosensitive material 150 is formed using a weak alkaline solution (developing process), metal etching, ITO etching, and peeling process are performed.
  • the metal layer 130 of the portion corresponding to the window region of the touch panel must be removed so that the display which is subsequently coupled to the touch panel can be seen even if it is coupled to the lower portion of the touch panel.
  • the present invention attaches and exposes the third photosensitive material 152 to the remaining portion of the touch panel except for the metal layer 130 that needs to be removed.
  • the metal layer 130 of the transparent electrode pattern 122 is removed and the third photosensitive material 152 is removed (secondary metal etching and peeling process). That is, the photolithography process is performed by dry film laminating, exposure, development, metal etching, peeling process.
  • the bottom pattern 210 has a single layer structure of the transparent electrode layer 122, which is a touch pattern portion, and a transparent conductive layer of the wiring electrode pattern 132, which is a bus electrode portion.
  • FIG. 5 is a view showing another embodiment of a method of manufacturing a bottom pattern of a touch panel according to a first embodiment of the present invention.
  • the bottom pattern 210 may include (a), (b), (c), (g), and (h) of FIG. 5, and (a), (b) and (a) of FIG. 5. c), (d), (e), (f) and (g).
  • the transparent conductive layer 120 is formed on the top surface of the insulating layer 110, and the top surface of the transparent conductive layer 120 is formed.
  • the metal layer 130 is formed on the substrate.
  • the fourth photosensitive material 160 is attached to a portion of the upper surface of the metal layer 130 corresponding to the wiring electrode pattern 132 by a photolithography process, and the remaining metal layer 130 is removed.
  • the present invention proceeds with etching to form the transparent electrode pattern 122 and the wiring electrode pattern 132.
  • the present invention provides a sixth photosensitive material 164 by using a photolithography process, wherein the transparent electrode pattern 122 and the wiring electrode pattern 132 are formed on the upper surface of the metal layer 130. ) And remove the remaining transparent conductive layer 120 and the metal layer 130 at the same time.
  • the present invention provides a transparent electrode pattern 122 that is a touch pattern portion using a fifth photosensitive material 162 by a photolithography process. After removing the transparent conductive layer 120 to form a), the transparent conductive layer 120 and the metal layer 130 are removed together to form the wiring electrode pattern 132 using the sixth photosensitive material 164.
  • the pattern forming process may remove the transparent conductive layer 120 and the metal layer 130 corresponding to the wiring electrode pattern 132 to form the wiring electrode pattern 132, and then form the transparent electrode pattern 122. In order to remove the transparent conductive layer 120.
  • the process of forming the various bottom patterns 210 may be selectively adjusted in consideration of the difficulty of the pattern and the ease of process design.
  • FIG. 6 is a diagram illustrating a structure of a touch panel according to a second embodiment of the present invention.
  • the structure of the touch panel of the first embodiment and the top pattern 200 and the bottom pattern 210 are opposite to each other.
  • the top pattern 200 has a transparent electrode pattern 122, which is a touch pattern portion, having a single layer structure of the transparent conductive layer 120, and a transparent conductive pattern of the wiring electrode pattern 132, which is a lead wire pattern of the bus electrode.
  • a transparent electrode pattern 122 which is a touch pattern portion, having a single layer structure of the transparent conductive layer 120, and a transparent conductive pattern of the wiring electrode pattern 132, which is a lead wire pattern of the bus electrode.
  • the bottom pattern 210 according to the second embodiment of the present invention has a single layer structure of the transparent electrode pattern 122, which is a touch pattern portion, and the wiring electrode pattern 124, which is a lead wire pattern of a bus electrode.
  • All the top patterns 200 and bottom patterns 210 described above may be any electrodes of the sensing electrodes Receive and Rx or the driving electrodes Tx and Tx.
  • the top pattern 200 and the bottom pattern 210 may be formed of the transparent electrode pattern 122 and the wiring electrode pattern 124 using only the transparent conductive layer 120.
  • the touch panel according to the third embodiment of the present invention is formed on the insulating layer 110 and the upper surface of the insulating layer 110, and is a conductive material of a transparent material as a touch pattern portion corresponding to the window region of the touch panel, and A touch pattern of a plurality of X-axis electrostatic electrodes formed to be spaced apart from each other by a predetermined distance, and a plurality of Y-axis electrostatic electrodes intersecting in a direction perpendicular to each X-axis electrostatic electrode, and connected to one end of each of the X-axis electrostatic electrodes
  • the transparent conductive layer 120 forms a first lead wire pattern of the first bus electrode and a second lead wire pattern of the second bus electrode connected to one end of each of the Y-axis electrostatic electrodes.
  • the driving electrodes Transfer and Tx to which the driving voltage of the touch panel is applied, and the sensing electrodes Receive and Rx which sense whether the touch pattern is touched and the touch position are changed as the voltage value is changed. It is formed at one time.
  • a touch panel pad including an insulating layer 110 and a transparent conductive layer 120 formed on an upper surface of the insulating layer 110 is prepared, and a touch panel A plurality of Y-axis intersecting at right angles to each of the X-axis electrostatic electrodes and the X-axis electrostatic electrodes formed to be spaced apart from each other by a touch pattern portion of the transparent conductive layer 120 of the pad for a portion of the window region.
  • the electrostatic electrode is formed.
  • a first bus electrode connected to one end of each X-axis electrostatic electrode and a second bus electrode connected to one end of each Y-axis electrostatic electrode At the same time, the transparent conductive layer 120 of the pad for the touch panel is removed, and the touch patterns of the plurality of X-axis electrostatic electrodes and the plurality of Y-axis electrostatic electrodes and the lead wire patterns of the first bus electrode and the second bus electrode are once To form.
  • the present invention forms the wiring electrode with ITO rather than metal, so that the electrostatic electrode and the wiring electrode can be manufactured with ITO, thereby simplifying the manufacturing process.
  • the present invention since only a layer having an ITO thickness exists in the top pattern or the bottom pattern, tolerance management between the two layers is easy and the fine pattern can be implemented.
  • the present invention can reduce the amount of chemicals to the process that only the ITO in the manner that the metal and ITO must be etched, thereby improving the productivity of the touch panel.
  • the electrostatic electrode and the wiring electrode can be etched at the same time with one etching solution, thereby reducing the process and chemicals and the damage caused by the chemicals.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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  • Physics & Mathematics (AREA)
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Abstract

Selon l'invention, une méthode de fabrication d'un panneau tactile comprend les étapes suivantes : préparer une première couche isolante et un premier pavé de panneau tactile, la première couche isolante comprenant un isolant organique ou inorganique, et le premier pavé d'écran tactile comprenant une première couche conductrice formée sur la surface supérieure de la première couche isolante ; et former un motif tactile pour une première électrode électrostatique et un motif de ligne conductrice pour une première électrode de bus en formant une pluralité de premières électrodes électrostatiques, qui forment la partie motif tactile de la partie correspondant à la région fenêtre sur la première couche conductrice transparente du premier pavé de panneau tactile, et éliminer sélectivement la première couche conductrice transparente de façon à former une première électrode de bus le long de la zone bord excluant la région fenêtre, la première électrode de bus étant connectée à une extrémité de chacune des premières électrodes électrostatiques.
PCT/KR2014/003047 2013-04-29 2014-04-08 Panneau tactile et méthode de fabrication de celui-ci WO2014178546A1 (fr)

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KR1020130047239A KR101496250B1 (ko) 2013-04-29 2013-04-29 터치 패널 및 이의 제조 방법
KR10-2013-0047239 2013-04-29

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Cited By (2)

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CN110069151A (zh) * 2018-01-24 2019-07-30 宸鸿科技(厦门)有限公司 触控面板
CN113342215A (zh) * 2021-06-11 2021-09-03 芜湖伦丰电子科技有限公司 一种电容屏、电容屏制作方法、装置、设备及可存储介质

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