WO2015023070A1 - Panneau tactile et procédé de fabrication associé - Google Patents

Panneau tactile et procédé de fabrication associé Download PDF

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Publication number
WO2015023070A1
WO2015023070A1 PCT/KR2014/006818 KR2014006818W WO2015023070A1 WO 2015023070 A1 WO2015023070 A1 WO 2015023070A1 KR 2014006818 W KR2014006818 W KR 2014006818W WO 2015023070 A1 WO2015023070 A1 WO 2015023070A1
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WO
WIPO (PCT)
Prior art keywords
touch panel
electrode
electrodes
electrostatic
axis
Prior art date
Application number
PCT/KR2014/006818
Other languages
English (en)
Korean (ko)
Inventor
박준영
정주현
이성림
송영진
노수천
한원희
Original Assignee
주식회사 티메이
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Application filed by 주식회사 티메이 filed Critical 주식회사 티메이
Publication of WO2015023070A1 publication Critical patent/WO2015023070A1/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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • 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
    • 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
    • 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 a touch sensor, which implements a touch sensor of one layer by performing jumping connection of an edge region of the touch panel except for a window region of the touch panel.
  • 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.
  • Such a touch panel has a resistive method, a capacitive method, an infrared method, an ultrasonic method, and the like, depending on a method of sensing a touch, and a resistive method is currently used, but it is advantageous for durability and light and simple characteristics in the future. The use of capacitive methods will be increased.
  • Such capacitive touch panels especially touch screens, have a structure of indium tin oxide (ITO) composed of a transparent conductive layer on a transparent insulator film such as polyethylene terephthalate (PET) or glass, and a silver paste on the edge of the ITO.
  • ITO indium tin oxide
  • PET polyethylene terephthalate
  • a pad made of a lead wire is laminated up and down by adding an adhesive layer or an insulator layer.
  • 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.
  • 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 in a conventional capacitive touch panel
  • Figure 2 is a view showing a Y-axis electrode pattern in a conventional capacitive touch panel
  • Figure 3 is a conventional capacitive touch panel 4 is a view illustrating a state in which the X-axis electrode pattern and the Y-axis electrode pattern are coalesced
  • FIG. 4 is a view illustrating a layer structure in a state in which the X-axis electrode pattern and the Y-axis electrode pattern are coalesced in a conventional capacitive touch panel. to be.
  • FIG. 1 is a diagram illustrating a conventional bottom pattern layer, and shows an X-axis electrode pattern
  • FIG. 2 is a diagram illustrating a conventional top pattern layer, and a Y-axis electrode pattern.
  • a top pattern having the X-axis electrostatic electrode 10 and a top pattern having the Y-axis electrostatic electrode 20 as shown in FIGS. 1 and 2 are respectively fabricated and laminated between layers, and then a window is attached to manufacture a touch panel. .
  • the touch panel completed by this manufacturing process shows a plan view in FIG.
  • a conventional capacitive touch panel has a bottom pattern having an X-axis electrostatic electrode 10 as a driving unit and a top pattern having a Y-axis electrostatic electrode 20 as a sensing unit at the top of the panel. It is formed evenly on the surface, the connection electrodes 30, 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 essentially, two ITO films were used, so two OCAs were required.
  • the present invention provides a touch panel and a manufacturing method for implementing a touch sensor of one layer by performing a jump connection of the edge region of the touch panel except for the window region of the touch panel. There is a purpose.
  • each of the second axis electrostatic electrodes corresponding to the window area of the touch panel and forming a first electrostatic electrode pattern representing the plurality of first axis electrostatic electrodes and crossing the first axis electrostatic electrodes at a predetermined distance apart from each other Forming a plurality of second bus electrodes, which are edge regions of the touch panel connected with the first metal layer;
  • the metal electrode portion of the first bus electrode which is an edge region of the touch panel connected to one end of each of the first axis electrostatic electrodes, of the transparent photosensitive material Opening the located area;
  • a second electrostatic electrode pattern representing each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance, and a plurality of first bus electrodes are formed to form a respective first electrode. Electrically connecting one end of the uniaxial electrostatic electrode and the metal electrode portion of each first bus electrode.
  • the metal electrode portion of the first bus electrode which is the edge region of the touch panel connected to one end of each first axis electrostatic electrode among the transparent photosensitive materials, is positioned. Opening the area;
  • a second electrostatic electrode pattern representing each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance from each other and connected to one end of each of the second axis electrostatic electrodes
  • a second bus electrode pattern representing each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance from each other and connected to one end of each of the second axis electrostatic electrodes
  • a first insulator layer made of an organic insulator or an inorganic insulator
  • a first electrostatic electrode pattern representing a plurality of first axis electrostatic electrodes, which are window regions, and a plurality of first bus electrodes, which are edge regions of a touch panel connected to one end of each first axis electrostatic electrode, respectively;
  • a first metal layer forming a plurality of second bus electrodes that are edge regions of a touch panel connected to one end of each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance from each other;
  • a transparent photosensitive material of a transparent material which is formed on an upper surface of the first metal layer and has an open area in which a metal electrode portion of each of the second bus electrodes connected to one end of each second axis electrostatic electrode of the transparent photosensitive material is located; Insulator layer;
  • each second insulator layer It is formed on the upper surface of the second insulator layer and forms a second electrostatic electrode pattern of each second axial electrostatic electrode to electrically connect one end of each second axial electrostatic electrode to the metal electrode portion of each second bus electrode. And a second metal layer to be formed.
  • a first insulator layer made of an organic insulator or an inorganic insulator
  • a first metal layer forming a first electrostatic electrode pattern representing a plurality of first axis electrostatic electrodes that are window regions;
  • a transparent photosensitive material made of a transparent material and formed on an upper surface of the first metal layer, and an area where a metal electrode part of a first bus electrode, which is an edge region of a touch panel connected to one end of each first axis electrostatic electrode, is located in the transparent photosensitive material.
  • the present invention can reduce the thickness by manufacturing a one-layer touch sensor, there is an effect that can lower the raw material cost and process cost.
  • the present invention is a technique for replacing a transparent electrode using a low-resistance metal of a fine pattern metal mesh structure can reduce the process cost and improve visibility.
  • the present invention does not jump and bridge the bridge in the view area (the window area of the touch panel), and jumps and bridges the outside of the window by using the bus electrode that is the outside area of the window area. There is an effect of improving reception sensitivity and visibility.
  • the present invention not only improves the visibility of the view area, but also increases the reception sensitivity by forming only one bridge and a jumping point.
  • the present invention has the effect of improving the productivity by simplifying the manufacturing process of the existing 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.
  • FIGS. 8 to 12 are plan views illustrating a method of manufacturing a touch panel using a window outer jumping bridge technology according to an embodiment of the present invention.
  • FIG. 13 is a view showing an example of a metal mesh structure of a fine pattern according to an embodiment of the present invention.
  • FIG. 14 and 15 are side views illustrating a method of manufacturing a touch panel using a window outer jumping bridge technology according to another embodiment of the present invention.
  • 16 and 17 are plan views illustrating a method of manufacturing a touch panel using an outer window jumping bridge technology according to another exemplary embodiment of the present invention.
  • 5 to 7 illustrate a layer structure on the X axis side of the touch panel in the method of manufacturing the touch panel.
  • the method for manufacturing a touch panel forms the metal layer 120 on the upper surface of the insulator layer 110.
  • the insulator layer 110 is formed of an organic insulator or an inorganic insulator of a transparent material, and the organic insulator is polyimide or polyethylene terephthalate (PET), polyethylenenaphthalate (PEN), polycarbonate, PC), acrylic plastic material, and the inorganic insulator is made of glass material and optically treated glass material.
  • the metal layer 120 is a metal mesh material, and is a driving part (Transfer, Tx) to which a driving voltage of a touch panel is applied, and APC, Cu, Cu alloy, Ag, Ag alloy, Ni + Cr, and Ni + Ni alloy. , Mo / Ag, Mo / Al / Mo, Ni + Cr / Cu / Ni + Cr, Ni alloy / Cu, Ni alloy / Cu / Ni alloy, Mo / APC, Cu / Ni + Cu + Ti, Ni + Cu + The concept includes all conductive materials such as Ti / Cu / Ni + Cu + Ti and carbon, and is formed by a known technique of printing, deposition, paste, and coating.
  • the metal layer 120 may be formed of a silver paste, and various methods may be performed, such as depositing copper.
  • the method of forming the metal layer 120 on the insulator layer 110 a known method such as laminating, vapor deposition, or coating may be used.
  • the sensing unit detects a change in the voltage value of the mutual cap to determine whether the touch is performed and the touch position. Will be detected.
  • the sensing unit (Receive, Rx) detects whether the touch panel is touched and the touch position by the change of the voltage value, and the driving unit (Transfer, Tx) is applied with the driving voltage of the touch panel.
  • the present invention is a metal layer by a process of photolithography.
  • the electrostatic electrode pattern 121 and the wiring electrode pattern 122 are formed by selectively removing the 120.
  • the electrostatic electrode pattern 121 is a drive unit to which a driving voltage of the touch panel is applied, and has a metal mesh structure of a fine pattern, and corresponds to a window area (region where a screen is displayed) of the touch panel, and a plurality of Y-axis electrostatic electrodes.
  • a Y-axis bar pattern indicating a user's touch pattern area is shown.
  • the wiring electrode pattern 122 is a metal circuit representing a bus electrode in an edge region excluding the window region of the touch panel.
  • the wiring electrode pattern 122 includes a metal electrode portion and a metal electrode signal connected to one end of each of the Y-axis electrostatic electrodes. It includes a lead wire electrode connected to a printed circuit board (FPCB) to detect and control a user's touch pattern and a metal electrode portion of the FPCB bonding area in contact with the flexible circuit board.
  • FPCB printed circuit board
  • the wiring electrode pattern 122 of the embodiment of the present invention is spaced apart from each other by a predetermined distance from the first wiring electrode pattern 122a connected to one end of each of the Y-axis electrostatic electrodes and each Y-axis electrostatic electrode in a right direction.
  • the second wiring electrode pattern 122b connected to one end of the plurality of X-axis electrostatic electrodes is formed through selective etching of the metal layer 120.
  • the electrostatic electrode pattern 121 and the wiring electrode pattern 122 are made of a metal layer 120.
  • the metal mesh formation method describes a photolithography method in which a circuit is formed using a metal etching chemical after metal deposition, but is not limited thereto, a photolithography method using a silver halide material, a photolithography method using a silver halide diffusion transfer method, There is an imprint method that digs a groove into PET to fill a conductive metal in the groove, a gravure offset method that prints by a circuit transfer method, a reverse offset method, a laser printing method, and a non-contact printing method using an inkjet printer.
  • the first photosensitive material 140 is formed on the upper surface of the metal layer 120, and UV irradiation is performed using the patterned first artwork film 142, the first photosensitive material 140 is formed.
  • a pattern is formed (exposure, FIG. 5 (b)), a pattern of the first photosensitive material 140 is formed using a weak alkaline solution (developing, FIG. 5 (c)), and metal etching and peeling process
  • the electrostatic electrode pattern 121 and the wiring electrode pattern 122 are formed (FIGS. 5D and 6E).
  • 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.
  • the upper surface of the touch panel is formed.
  • a transparent photosensitive material 130 of a transparent material laminated, coating or deposition process.
  • the transparent photosensitive material 130 may include a transparent dry film as an example of a photosensitive transparent insulating material.
  • the outer region 160 refers to a region where the metal electrode portion of the second wiring electrode pattern 122b connected to one end of the plurality of X-axis electrostatic electrodes is located.
  • the pattern of the transparent photosensitive material 130 is formed (exposure).
  • the weak alkaline solution to form an open pattern on the transparent photosensitive material 130 (development).
  • an area corresponding to the window outer region 160 of the touch panel is opened among the transparent photosensitive materials 130 formed on the upper surface of the touch panel. Mean the pattern.
  • the present invention illustrates an artwork film having a pattern, but the present invention is not limited thereto. Any pattern tool having a pattern in which the outer region 160 is opened may be used, and the pattern may be directly implemented without the pattern tool. Equipment may also be used to perform the exposure process.
  • the present invention forms the second metal layer 150 on the upper surface of the touch panel.
  • the present invention selectively selects the second metal layer 150 by a process of photolithography. It is removed to form the electrostatic electrode pattern 151 of the fine metal mesh structure.
  • the electrostatic electrode pattern 151 is a sensing unit that senses whether the touch panel is touched and the touch position, and represents an X-axis bar pattern representing a plurality of X-axis electrostatic electrodes.
  • the electrostatic electrode pattern 121 may serve as a driver and the electrostatic electrode pattern 151 may serve as a sensing unit.
  • the first photosensitive material 140 is formed on the upper surface of the second metal layer 150, and UV irradiation is performed using the artwork film 146 having the pattern, the first photosensitive material 140 is formed.
  • a pattern is formed (exposure, FIG. 7 (i)), and the pattern of the first photosensitive material 140 is developed using a weak alkaline solution (developing, FIG. 7 (j)), and the metal etching and peeling process
  • the electrostatic electrode pattern 151 is formed by (Fig. 7 (k), Fig. 7 (m)).
  • the metal mesh structure of the fine pattern is formed to be electrically connected to one end of each of the X-axis electrostatic electrodes and the electrode portion of the metal layer 120 positioned in the outer region 160 of the window.
  • the electrode portion of the metal layer 120 is a metal electrode portion connected to one end of each X-axis electrostatic electrode in the second wiring electrode pattern 122b.
  • the photolithography process performs dry film laminating (or liquid photoresist coating), exposure, development, metal layer etching, and peeling process.
  • the electrostatic electrode patterns 121 and 151 have a metal mesh structure and have a fine structure through a plurality of first linear electrode portions and a plurality of second linear electrode portions intersecting with the plurality of first linear electrode portions. Consists of a pattern.
  • the plurality of X-axis electrostatic electrodes and the Y-axis electrostatic electrodes are formed in a bar pattern, but the present invention is not limited thereto and may be variously applied, such as a square, a circle, a diamond, a polygon, and a random pattern.
  • the present invention does not jump and bridge the bridge in the view area (the window area of the touch panel), and jumps and bridges the outside of the window by using the bus electrode that is the outside area of the window area. There is an effect of improving reception sensitivity and visibility.
  • the present invention not only improves the visibility of the view area, but also increases the reception sensitivity by forming only one bridge and a jumping point.
  • the reinforcing work is performed by applying a conductive material such as silver paste or a conductive polymer to the outer region 160 of the window by non-contact conductive ink printing, silk screen printing, gravure printing, or the like.
  • a conductive material such as silver paste or a conductive polymer
  • silk screen printing silk screen printing
  • gravure printing or the like.
  • One end of the X-axis electrostatic electrode is electrically connected.
  • the present invention is a technique for replacing a transparent electrode using a low-resistance metal of a fine pattern metal mesh structure can reduce the process cost and improve visibility.
  • FIG. 14 and 15 illustrate a method of manufacturing a touch panel using a window outside jumping bridge technology according to another embodiment of the present invention in a layer structure in a side view
  • FIGS. 16 and 17 illustrate another embodiment of the present invention.
  • FIG. 2 is a plan view illustrating a method of manufacturing a touch panel using a window outer jumping bridge technology.
  • the metal layer 120 is disposed on the upper surface of the insulator layer 110.
  • the electrostatic electrode pattern 121 made of the metal layer 120 is formed by a process of photolithography.
  • the electrostatic electrode pattern 121 has an X-axis bar pattern representing a plurality of X-axis electrostatic electrodes as a fine pattern metal mesh structure.
  • the outer region 160 refers to a region where the metal electrode portion of the first wiring electrode pattern 152b connected to one end of the plurality of X-axis electrostatic electrodes is located.
  • the present invention forms a pattern of the transparent photosensitive material 170 when UV irradiation is performed using the third artwork film 148 having a pattern for opening the outer region 160 of the window (exposure). , Using the weak alkaline solution to form an open pattern on the transparent photosensitive material 170 (development).
  • the electrostatic electrode pattern 151 is a metal mesh structure of a fine pattern, which corresponds to the window area (the area where the screen is displayed) of the touch panel, and a plurality of Ys which cross each other at right angles at a predetermined distance from each X-axis electrostatic electrode.
  • a Y-axis bar pattern representing an axial electrostatic electrode is shown.
  • the wiring electrode pattern 152 includes a second wiring electrode pattern 152a connected to one end of each of the Y-axis electrostatic electrodes, and a plurality of X-axis electrostatic crossings in a right direction at a predetermined distance from each of the Y-axis electrostatic electrodes.
  • the first wiring electrode pattern 152b connected to one end of the electrode is formed through selective etching of the second metal layer 150. That is, the photolithography process is performed by dry film laminating, exposure, development, metal etching, peeling process.
  • the present invention selectively removes the second metal layer 150 in the portion not corresponding to the Y-axis bar pattern by using the third photosensitive material 149 and does not correspond to the wiring electrode pattern 152.
  • the second metal layer 150 of the non-part is selectively removed.
  • the present invention provides the Y-axis bar pattern of the plurality of Y-axis electrostatic electrodes, the second wiring electrode pattern 152a connected to each of the Y-axis electrostatic electrodes, and the first wiring electrode pattern connected to the plurality of X-axis electrostatic electrodes. 152b and are electrically connected to one end of each X-axis electrostatic electrode and the electrode portion of the metal layer 150 located at the outer region 160 of the window.
  • the present invention can reduce the thickness by manufacturing a one-layer touch sensor, there is an effect that can lower the raw material cost and process cost.
  • the present invention is a technique for replacing a transparent electrode using a low-resistance metal of a fine pattern metal mesh structure can reduce the process cost and improve visibility.
  • the present invention does not jump and bridge the bridge in the view area (the window area of the touch panel), and jumps and bridges the outside of the window by using the bus electrode that is the outside area of the window area. There is an effect of improving reception sensitivity and visibility.
  • the present invention not only improves the visibility of the view area, but also increases the reception sensitivity by forming only one bridge and a jumping point.
  • the present invention has the effect of improving the productivity by simplifying the manufacturing process of the existing touch panel.

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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)

Abstract

La présente invention concerne un panneau tactile qui met en œuvre un capteur tactile à une couche en effectuant des connexion de saut dans la région de bord du panneau tactile, à l'exclusion de la région de fenêtre du panneau tactile. La présente invention peut réduire l'épaisseur du panneau tactile, réduire les coûts de matériaux bruts et de traitement, simplifier les procédés de fabrication existant d'un panneau tactile, et ainsi améliorer la productivité d'un panneau tactile en produisant le capteur tactile à une couche.
PCT/KR2014/006818 2013-08-14 2014-07-25 Panneau tactile et procédé de fabrication associé WO2015023070A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20130096627A KR20150019571A (ko) 2013-08-14 2013-08-14 터치 패널 및 제조 방법
KR10-2013-0096627 2013-08-14

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WO2015023070A1 true WO2015023070A1 (fr) 2015-02-19

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Publication number Priority date Publication date Assignee Title
KR102313959B1 (ko) * 2015-06-08 2021-10-18 엘지이노텍 주식회사 터치 윈도우
KR102089340B1 (ko) * 2016-08-31 2020-03-16 엘지디스플레이 주식회사 터치 센서를 가지는 유기 발광 표시 장치 및 그 제조 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009009574A (ja) * 2007-06-28 2009-01-15 Sense Pad Tech Co Ltd 容量方式のタッチパネル
KR20120027996A (ko) * 2010-09-14 2012-03-22 삼성전기주식회사 정전용량방식의 터치패널 및 그 제조방법
KR20120032734A (ko) * 2010-09-29 2012-04-06 삼성모바일디스플레이주식회사 터치스크린패널 및 그 제조방법
KR20130084778A (ko) * 2012-01-18 2013-07-26 엘지이노텍 주식회사 터치 윈도우 및 그 제조 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009009574A (ja) * 2007-06-28 2009-01-15 Sense Pad Tech Co Ltd 容量方式のタッチパネル
KR20120027996A (ko) * 2010-09-14 2012-03-22 삼성전기주식회사 정전용량방식의 터치패널 및 그 제조방법
KR20120032734A (ko) * 2010-09-29 2012-04-06 삼성모바일디스플레이주식회사 터치스크린패널 및 그 제조방법
KR20130084778A (ko) * 2012-01-18 2013-07-26 엘지이노텍 주식회사 터치 윈도우 및 그 제조 방법

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