WO2015002394A1 - Touch panel and manufacturing method therefor - Google Patents

Touch panel and manufacturing method therefor Download PDF

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Publication number
WO2015002394A1
WO2015002394A1 PCT/KR2014/005407 KR2014005407W WO2015002394A1 WO 2015002394 A1 WO2015002394 A1 WO 2015002394A1 KR 2014005407 W KR2014005407 W KR 2014005407W WO 2015002394 A1 WO2015002394 A1 WO 2015002394A1
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WO
WIPO (PCT)
Prior art keywords
electrode pattern
touch
optical film
transparent conductive
electrostatic
Prior art date
Application number
PCT/KR2014/005407
Other languages
French (fr)
Korean (ko)
Inventor
박준영
정주현
이성림
허용
서초란
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
Priority claimed from KR20130090237A external-priority patent/KR101496256B1/en
Application filed by 주식회사 티메이 filed Critical 주식회사 티메이
Publication of WO2015002394A1 publication Critical patent/WO2015002394A1/en

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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
    • G06F3/0446—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
    • G06F3/0445—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 touch panel and a method of manufacturing the same, and in particular, a touch panel for improving visibility and improving touch sensitivity by implementing a sensing unit and a driving unit of a touch sensor made of a transparent conductive layer and a metal layer in a metal mesh form.
  • the manufacturing method is related.
  • the touch screen is an input device for sensing a contact position of a user on a display screen and performing general control of an electronic device including control of a display screen using information regarding the detected touch position as input information.
  • an electrode of a touch screen panel is composed of a transparent electrode portion forming an electrode using an ITO film, and a bus electrode (Trace), which serves to send a signal of the electrode to a chip.
  • a bus electrode Trace
  • a plurality of electrostatic electrodes which are touch portions of the window region, are formed of a transparent conductive film, and a lead wire pattern extending from each electrostatic electrode to form a bus electrode is formed of a metal layer.
  • the sensing unit and the driving unit are manufactured, respectively, and then laminated using an adhesive such as an OCA to manufacture a touch screen panel.
  • the conventional manufacturing method of the touch screen panel has a problem in that the manufacturing process of the touch sensor is complicated and the manufacturing cost is increased because the transparent conductive film and the metal layer must be implemented in one layer.
  • the present invention provides a touch screen panel and a manufacturing method for forming a sensing unit with a transparent conductive film and implementing the driving unit with a touch sensor made of a metal layer of a metal mesh to improve visibility and improve touch sensitivity. Its purpose is to.
  • Bus electrodes formed on one surface of both surfaces of the optical film and connected to edge regions of the first electrostatic electrode pattern and the first electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes for sensing a signal input by a touch to represent a bus electrode.
  • a transparent conductive layer forming a first wiring electrode pattern;
  • edges of the second electrostatic electrode pattern and the second electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes are formed in a fine pattern mesh structure on the other side of both sides of the optical film and detect a signal input by touch; And a metal layer connected to form a second wiring electrode pattern representing the bus electrode.
  • a sensing unit (Receive, Rx) connected to the control panel to form a first wiring electrode pattern representing the bus electrode as a transparent conductive layer, and detecting whether a touch is made and a touch position as a change in voltage value;
  • a second wiring electrode pattern which is connected to an edge region of the electrostatic electrode pattern and represents a bus electrode, is formed of a metal layer, and includes a driving unit (Transfer, Tx) to which a driving voltage is applied, and includes a first optical film with an adhesive layer interposed therebetween. Laminate the metal layer.
  • a sensing unit (Receive, Rx) connected to an edge region of the first electrostatic electrode pattern to form a first wiring electrode pattern representing a bus electrode as a metal layer, and detecting whether a touch is made and a touch position as a change in voltage value;
  • a second wiring electrode pattern representing the bus electrode as a transparent conductive layer, including a driving unit (Transfer, Tx) to which a driving voltage is applied, and laminating the first optical film and the transparent conductive layer with an adhesive layer interposed therebetween.
  • a driving unit Transfer, Tx
  • a sensing unit (Receive, Rx) connected to the control panel to form a first wiring electrode pattern representing the bus electrode as a transparent conductive layer, and detecting whether a touch is made and a touch position as a change in voltage value;
  • a second wiring electrode pattern, which is connected to an edge region of the electrostatic electrode pattern and represents a bus electrode, is formed of a metal layer, and includes a driving unit (Transfer, Tx) to which a driving voltage is applied, and includes a first optical film with an adhesive layer interposed therebetween.
  • the second optical film is laminated.
  • a sensing unit (Receive, Rx) connected to an edge region of the first electrostatic electrode pattern to form a first wiring electrode pattern representing a bus electrode as a metal layer, and detecting whether a touch is made and a touch position as a change in voltage value;
  • a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes for selectively detecting a signal input by a touch by selectively removing the transparent conductive layer and connected to edge regions of the first electrostatic electrode patterns to represent bus electrodes.
  • the second electrostatic electrode pattern and the second electrostatic electrode of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes which are formed in a fine pattern mesh structure on one surface of the second optical film by selectively removing the metal layer and detect a signal input by a touch Preparing a second pad connected to an edge region of the electrode pattern to form a second wiring electrode pattern representing the bus electrode;
  • the present invention implements the sensing unit and the driving unit of the touch panel as a touch sensor made of a transparent conductive layer and a metal layer in the form of a metal mesh to improve visibility and improve touch sensitivity.
  • the sensing unit and the driving unit may be simultaneously implemented by double-sided etching, thereby reducing the manufacturing cost by simplifying the process.
  • FIG. 1 is a view showing a method of manufacturing a touch panel according to a first embodiment of the present invention.
  • FIG. 2 is a view showing an example of a metal mesh structure of a fine pattern according to an embodiment of the present invention.
  • FIG 3 is an exploded perspective view showing the structure of a touch panel according to a first embodiment of the present invention.
  • FIG. 4 to 6 illustrate a method of manufacturing a touch panel according to a second embodiment of the present invention.
  • FIG. 8 illustrates a method of manufacturing a touch panel according to a third embodiment of the present invention.
  • FIG. 9 is a view illustrating a method of manufacturing a touch panel according to a fourth embodiment of the present invention.
  • FIG. 10 is an exploded perspective view showing the structure of a touch panel according to a fourth embodiment of the present invention.
  • FIG. 11 illustrates a method of manufacturing a touch panel according to a fifth embodiment of the present invention.
  • FIG. 12 illustrates a method of manufacturing a touch panel according to a sixth embodiment of the present invention.
  • the present invention exemplifies a structure and a manufacturing method of the touch panel pad, but the touch panel pad is a pad for touch sensing, and when the glass is attached using an adhesive layer, the touch panel is a finished product.
  • touch panel Since the pad for a touch panel means a touch panel using a broad meaning, the term touch panel will be used for convenience of description.
  • Such a touch panel is applied to a mutual capacitance method, and forms an adhesive layer (Optical Clear Adhesive (OCA)) on one surface of a pad for a touch panel for lamination with another layer.
  • OCA Optical Clear Adhesive
  • FIG. 1 is a view showing a method of manufacturing a touch panel according to a first embodiment of the present invention.
  • the transparent conductive layer 120 is formed on one surface of both surfaces of the optical film 110, and the metal layer having a metal mesh structure on the other surface of both surfaces of the optical film 110 ( 130).
  • the optical film 110 represents an undercoated insulator, and the insulator is formed of an organic insulator or an inorganic insulator of a transparent material, and the organic insulator is polyimide or polyethylene terephthalate (PET), polyethylene naphthalate (Polyethylenenaphthalate, PEN), polycarbonate (PC), PES (polyethersulfone), PAR (polyarylate), PMMA, COP, PI (polyimide), and acrylic plastic materials, and the inorganic insulator is made of glass And made of optically treated glass material.
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • PC polycarbonate
  • PES polyethersulfone
  • PAR polyarylate
  • PMMA polyMMA
  • COP polyarylate
  • PI polyimide
  • acrylic plastic materials and the inorganic insulator is made of glass And made of optically treated glass material.
  • the above-described undercoating is a coating for treating the presence or absence of ITO after the ITO pattern, that is, an optical treatment is applied to the ITO base layer so that the presence or absence of ITO is not detected by the eye during capacitive ITO film production.
  • the undercoat may in some cases raising the SiO 2, TiO 2 Ceo 2 such as a dry method (vapor deposition), there is also a case that a chemical treatment by a wet method.
  • the transparent conductive layer 120 is a sensing unit (Receive, Rx) that detects whether the touch panel is touched and the touch position as a change in voltage value, and is made of a transparent conductive material such as transparent conducting oxide (TCO). It is formed, specifically ITO or IZO (Indium Zinc Oxide) containing or ITO, IZO, SnO 2 , AZO, Carbon Nanotube (CNT), graphene (Graphene), conductive polymer, silver nanowires ( Silver nanowires, AGNW), Hybrid AGNW (CNT + AGNW), Hybrid graphene (AGNW + graphene), etc. are formed of a transparent conductive material.
  • ITO or IZO Indium Zinc Oxide
  • IZO Indium Zinc Oxide
  • SnO 2 Tin Oxide
  • AZO Carbon Nanotube
  • CNT Carbon Nanotube
  • Graphene graphene
  • conductive polymer silver nanowires ( Silver nanowires, AGNW), Hybri
  • the metal layer 130 is a metal mesh material, and is a driver (Transfer, Tx) to which a driving voltage of a touch panel is applied, and includes 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 130 may be formed of a silver paste, or various methods may be used, such as depositing copper.
  • 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.
  • one surface of the optical film 110 may be removed.
  • the wiring electrode pattern 122 is formed.
  • the manufacturing method of the touch panel is made of a metal layer 130 on the other surface of the optical film 110 and the first electrostatic electrode pattern 121 and the first electrostatic electrode pattern 121 of the plurality of X-axis electrostatic electrode or Y-axis electrostatic electrode ( A first wiring electrode pattern 122 is formed to be connected to the edge of 121 to represent the bus electrode.
  • the process of photolithography performs dry film laminating, exposure, development, transparent conductive layer etching, metal layer etching, and peeling.
  • the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 formed of the metal layer 130 have a fine mesh metal mesh structure.
  • the metal mesh structure has a fine pattern 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.
  • a photosensitive material for example, a dry film
  • a patterned artwork film It forms (exposure process), and the patterned photosensitive material is formed using a weak alkali solution (development process).
  • 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 electrostatic electrode pattern represents a first axis pattern including a plurality of X-axis electrostatic electrodes and a second axis pattern including a plurality of Y-axis electrostatic electrodes crossing at right angles with a predetermined distance from the first axis pattern.
  • each bus electrode connected to one end of each X-axis electrostatic electrode and each bus electrode connected to one end of each Y-axis electrostatic electrode.
  • the electrostatic electrode pattern represents a plurality of X-axis or Y-axis electrostatic electrodes of a portion corresponding to the window area (the area where the screen is displayed) of the touch panel, and represents the touch pattern area of the user.
  • the wiring electrode pattern is a metal circuit of the edge region except for the window region of the touch panel, connected to one end of each X-axis or Y-axis electrostatic electrode of the electrostatic electrode pattern, and connected to the electrostatic electrode pattern and the printed circuit board to the user's touch. It represents a bus electrode that senses and controls the pattern.
  • 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 transparent conductive layer 120 and the metal layer 130 can be simultaneously processed by the photolithography process, and the transparent conductive layer 120 or the metal layer 130 is pre-processed by the photolithography process.
  • the remaining layers can then be processed in one of: imprint, gravure offset, reverse offset, inkjet printer, photolithography of silver halide material.
  • the transparent conductive layer 120 may be processed by a photolithography process and the metal layer 130 may be processed by one of imprint, gravure offset, reverse offset, inkjet printer, and photolithography of silver halide.
  • the order and method of processing may change.
  • FIG 3 is an exploded perspective view showing the structure of a touch panel according to a first embodiment of the present invention.
  • the top pattern of the sensing unit Rx and the bottom pattern of the driving unit Tx are formed in the upper portion with the optical film 110 interposed therebetween. do.
  • the first electrostatic electrode pattern 121 of the plurality of X-axis or Y-axis electrostatic electrodes and the first wiring electrode pattern 122 connected thereto are formed on the upper surface of the optical film 110 as a sensing unit.
  • the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 are made of a transparent conductive layer 120.
  • a second electrostatic electrode pattern 131 of a plurality of X-axis or Y-axis electrostatic electrodes having a metal mesh structure and a second wiring electrode pattern 132 connected thereto are formed on a lower surface of the optical film 110 as a driving unit.
  • the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 are made of a metal layer 130.
  • FIG. 4 to 6 illustrate a method of manufacturing a touch panel according to a second embodiment of the present invention.
  • the transparent conductive layer 120 is formed on the upper surface of the first optical film 111 and the photolithography process is performed.
  • the transparent conductive layer 120 is selectively removed.
  • the touch panel is formed of the transparent conductive layer 120 on the upper surface of the first optical film 111, and the first electrostatic electrode pattern 121 and the first electrostatic electrode pattern 121 of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes
  • a sensing unit including a first wiring electrode pattern 122 that is connected to an edge region of 121 and representing a bus electrode is formed.
  • the metal layer 130 is formed on the upper surface of the second optical film 112, and the metal mesh forming method is described above.
  • the metal layer 130 is selectively removed using.
  • the touch panel is formed of the metal layer 130 on the upper surface of the second optical film 112 and the second electrostatic electrode pattern 131 and the second electrostatic electrode pattern 131 of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes.
  • a driving part including a second wiring electrode pattern 132 representing a bus electrode connected to an edge region of the substrate).
  • the touch panel separately processes the sensing unit and the driving unit, and then laminates the sensing unit and the driving unit with the adhesive layer 140 of OCA (Optical Clear Adhesive) or OCR (Optical Clear Resin) interposed therebetween. do.
  • OCA Optical Clear Adhesive
  • OCR Optical Clear Resin
  • the touch panel is prepared by processing a top pattern of the sensing unit Rx on an upper surface of the first optical film 111, and a driving unit Tx on an upper surface of the second optical film 112. ) Bottom pattern is prepared by processing.
  • the top pattern forms a first capacitive electrode pattern 121 of the plurality of X-axis or Y-axis electrostatic electrodes and a first wiring electrode pattern 122 connected thereto as a sensing unit.
  • the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 are made of a transparent conductive layer 120.
  • the bottom pattern forms a second electrostatic electrode pattern 131 of the plurality of X-axis or Y-axis electrostatic electrodes of the metal mesh structure and the second wiring electrode pattern 132 connected thereto as a driving unit.
  • the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 are made of a metal layer 130.
  • the touch panel individually processes the top pattern and the bottom pattern, and then laminates the top pattern and the bottom pattern with the adhesive layer 140 of the OCA or OCR interposed therebetween.
  • the first wiring electrode pattern 122 made of the transparent conductive layer 120 is a flexible printed circuit board as an end portion of the first wiring electrode pattern 122.
  • the connection electrode region 123 to which the board and the FPCB are coupled may be formed of the metal layer 130.
  • connection electrode region 123 of the wiring electrode pattern formed of the transparent conductive layer 120 may be formed of the metal layer 130.
  • FIG. 8 illustrates a method of manufacturing a touch panel according to a third embodiment of the present invention.
  • the transparent conductive layer 120 is formed on the upper surface of the first optical film 111 and the photolithography process is performed. Selectively removing the transparent conductive layer 120 by using the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 formed of the transparent conductive layer 120 on the upper surface of the first optical film 111. Form a sensing unit.
  • the metal layer 130 is formed on the bottom surface of the second optical film 112 and the metal layer 130 is formed using the above-described metal mesh formation method.
  • the driving unit may be selectively removed to form a driving part including the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 formed of the metal layer 130 on the lower surface of the second optical film 112.
  • the touch panel separately processes the sensing unit and the driving unit, and then laminates the sensing unit and the driving unit with the adhesive layer 140 of the OCA or OCR interposed therebetween.
  • FIG. 9 is a view illustrating a method of manufacturing a touch panel according to a fourth embodiment of the present invention.
  • the metal layer 130 having the metal mesh structure is formed on one surface of both surfaces of the optical film 110, and the transparent conductive layer is formed on the other surface of both surfaces of the optical film 110. 120).
  • the manufacturing method of the touch panel is made of a metal layer 130 on one surface of the optical film 110 by selectively removing the transparent conductive layer 120 and the metal layer 130 by a process of photolithography.
  • a second wiring electrode pattern 132 representing the bus electrode is formed by connecting the second electrostatic electrode pattern 131 and the edge region of the second electrostatic electrode pattern 131 of the X-axis electrostatic electrode or the Y-axis electrostatic electrode.
  • the manufacturing method of the touch panel is made of a transparent conductive layer 120 on the other surface of the optical film 110, the first electrostatic electrode pattern 121 and the first electrostatic of the plurality of X-axis electrostatic electrode or Y-axis electrostatic electrode
  • the first wiring electrode pattern 122 representing the bus electrode is formed by being connected to the edge region of the electrode pattern 121.
  • the process of photolithography performs dry film laminating, exposure, development, transparent conductive layer etching, metal layer etching, and peeling.
  • FIG. 10 is an exploded perspective view showing the structure of a touch panel according to a fourth embodiment of the present invention.
  • the top pattern of the sensing unit Rx and the bottom pattern of the driving unit Tx are formed at the upper portion with the optical film 110 interposed therebetween. do.
  • the second electrostatic electrode pattern 131 of the plurality of X-axis or Y-axis electrostatic electrodes of the metal mesh structure and the second wiring electrode pattern 132 connected thereto are formed on the upper surface of the optical film 110 as a sensing unit.
  • the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 are made of a metal layer 130.
  • the first electrostatic electrode pattern 121 of the plurality of X-axis or Y-axis electrostatic electrodes and the first wiring electrode pattern 122 connected thereto are formed on the bottom surface of the optical film 110 as a driving unit.
  • the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 are made of a transparent conductive layer 120.
  • FIG. 11 illustrates a method of manufacturing a touch panel according to a fifth embodiment of the present invention.
  • the metal layer 130 is formed on the upper surface of the first optical film 111 and the metal layer 130 is selectively removed using the above-described metal mesh formation method.
  • the sensing unit including the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 formed of the metal layer 130 is formed on the upper surface of the first optical film 111.
  • the transparent conductive layer 120 is formed on the upper surface of the second optical film 112 and the transparent conductive layer is formed by using a photolithography process.
  • the driver 120 may be selectively removed to form a driving part including the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 formed of the transparent conductive layer 120 on the upper surface of the second optical film 112.
  • the touch panel separately processes the sensing unit and the driving unit, and then laminates the sensing unit and the driving unit with the adhesive layer 140 of the OCA or OCR interposed therebetween.
  • FIG. 12 illustrates a method of manufacturing a touch panel according to a sixth embodiment of the present invention.
  • the metal layer 130 is formed on the upper surface of the first optical film 111 and the metal layer 130 is selectively removed using the above-described metal mesh formation method.
  • the sensing unit including the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 formed of the metal layer 130 is formed on the upper surface of the first optical film 111.
  • the transparent conductive layer 120 is formed on the bottom surface of the second optical film 112, and the transparent conductive layer is formed using a photolithography process.
  • the driver 120 may be selectively removed to form a driving part including the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 formed of the transparent conductive layer 120 on the lower surface of the second optical film 112.
  • the touch panel separately processes the sensing unit and the driving unit, and then laminates the sensing unit and the driving unit with the adhesive layer 140 of the OCA or OCR interposed therebetween.
  • connection electrode region 123 connection electrode region
  • the present invention implements the sensing unit and the driving unit of the touch panel as a touch sensor made of a transparent conductive layer and a metal layer in the form of a metal mesh to improve visibility and improve touch sensitivity.
  • the sensing unit and the driving unit may be simultaneously implemented by double-sided etching, thereby reducing the manufacturing cost by simplifying the process.

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

A touch panel comprises: an optical film formed from an organic insulator or an inorganic insulator; a transparent conductive layer which is formed on one surface of both surfaces of the optical film and forms a first capacitive electrode pattern of a plurality of X-axis capacitive electrodes or Y-axis capacitive electrodes, which sense a signal input according to a touch, and a first wiring electrode pattern connected to the edge of the first capacitive electrode pattern so as to represent a bus electrode; and a metal layer which is formed on the other surface of the both surfaces of the optical film in a mesh structure having a fine pattern and forms a second capacitive electrode pattern of the plurality of X-axis capacitive electrodes or Y-axis capacitive electrodes, which sense a signal input according to a touch, and a second wiring electrode pattern connected to the edge of the second capacitive electrode pattern so as to represent a bus electrode.

Description

터치 패널 및 그 제조 방법Touch panel and its manufacturing method
본 발명은 터치 패널 및 그 제조 방법에 관한 것으로서, 특히 터치 패널의 센싱부와 구동부를 투명 도전층과 메탈 메쉬 형태의 금속층으로 이루어진 터치 센서로 구현하여 시인성을 개선하고 터치 감도를 향상시키는 터치 패널 및 그 제조 방법에 관한 것이다.The present invention relates to a touch panel and a method of manufacturing the same, and in particular, a touch panel for improving visibility and improving touch sensitivity by implementing a sensing unit and a driving unit of a touch sensor made of a transparent conductive layer and a metal layer in a metal mesh form. The manufacturing method is related.
터치 스크린은 디스플레이 화면상의 사용자의 접촉 위치를 감지하고, 감지된 접촉 위치에 관한 정보를 입력 정보로 하여 디스플레이 화면 제어를 포함한 전자기기의 전반적인 제어를 수행하기 위한 입력 장치이다.The touch screen is an input device for sensing a contact position of a user on a display screen and performing general control of an electronic device including control of a display screen using information regarding the detected touch position as input information.
터치 스크린 패널의 전극은 일반적으로 ITO Film을 이용하여 전극을 형성시키는 투명전극 부위와, 전극의 신호를 Chip으로 보내주는 역할을 하는 버스(Bus)전극 (Trace)로 구성되어 진다.In general, an electrode of a touch screen panel is composed of a transparent electrode portion forming an electrode using an ITO film, and a bus electrode (Trace), which serves to send a signal of the electrode to a chip.
종래의 터치 스크린 패널은 원도우 영역의 터치 부분인 복수개의 정전전극을 투명 도전막으로 형성하고 각각의 정전전극으로부터 연장되어 버스 전극을 형성하는 리드선 패턴을 금속층으로 형성한다. 이러한 패턴 구조를 이용하여 센싱부와 구동부를 각각 제조한 후 OCA 등의 접착제를 이용하여 합지하여 터치 스크린 패널을 제조한다.In the conventional touch screen panel, a plurality of electrostatic electrodes, which are touch portions of the window region, are formed of a transparent conductive film, and a lead wire pattern extending from each electrostatic electrode to form a bus electrode is formed of a metal layer. Using the pattern structure, the sensing unit and the driving unit are manufactured, respectively, and then laminated using an adhesive such as an OCA to manufacture a touch screen panel.
그러나 종래의 터치 스크린 패널의 제조 방법은 하나의 층에 투명도전막과 금속층을 구현해야 하므로 터치 센서의 제조 공정이 복잡하고 제조 비용이 증가되는 문제점이 있었다.However, the conventional manufacturing method of the touch screen panel has a problem in that the manufacturing process of the touch sensor is complicated and the manufacturing cost is increased because the transparent conductive film and the metal layer must be implemented in one layer.
이와 같은 문제점을 해결하기 위하여, 본 발명은 센싱부를 투명 도전막으로 형성하며 구동부를 메탈 메쉬 형태의 금속층으로 이루어진 터치 센서로 구현하여 시인성을 개선하고 터치 감도를 향상시키는 터치 스크린 패널 및 제조 방법을 제공하는데 그 목적이 있다.In order to solve the above problems, the present invention provides a touch screen panel and a manufacturing method for forming a sensing unit with a transparent conductive film and implementing the driving unit with a touch sensor made of a metal layer of a metal mesh to improve visibility and improve touch sensitivity. Its purpose is to.
상기 목적을 달성하기 위한 본 발명의 특징에 따른 터치 패널은,Touch panel according to a feature of the present invention for achieving the above object,
유기 절연체 또는 무기 절연체로 이루어진 광학필름;An optical film made of an organic insulator or an inorganic insulator;
광학필름의 양면 중 일면에 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 형성하는 투명 도전층; 및Bus electrodes formed on one surface of both surfaces of the optical film and connected to edge regions of the first electrostatic electrode pattern and the first electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes for sensing a signal input by a touch to represent a bus electrode. A transparent conductive layer forming a first wiring electrode pattern; And
광학필름의 양면 중 타면에 미세 패턴의 메쉬 구조로 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 형성하는 금속층을 포함한다.The edges of the second electrostatic electrode pattern and the second electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes are formed in a fine pattern mesh structure on the other side of both sides of the optical film and detect a signal input by touch; And a metal layer connected to form a second wiring electrode pattern representing the bus electrode.
본 발명의 특징에 따른 터치 패널은,Touch panel according to a feature of the invention,
유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 상면에 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 투명 도전층으로 형성하며, 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx); 및Edge regions of the first electrostatic electrode pattern and the first electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed on an upper surface of the first optical film made of an organic insulator or an inorganic insulator and detecting a signal input by a touch A sensing unit (Receive, Rx) connected to the control panel to form a first wiring electrode pattern representing the bus electrode as a transparent conductive layer, and detecting whether a touch is made and a touch position as a change in voltage value; And
유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 상면에 미세 패턴의 메쉬 구조로 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 금속층으로 형성하며, 구동 전압이 인가되는 구동부(Transfer, Tx)를 포함하며, 접착제층을 사이에 두고 제1 광학필름과 금속층을 합지한다.The second electrostatic electrode pattern and the second electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed of a fine pattern mesh structure on the upper surface of the second optical film made of an organic insulator or an inorganic insulator and detecting a signal input by a touch. A second wiring electrode pattern, which is connected to an edge region of the electrostatic electrode pattern and represents a bus electrode, is formed of a metal layer, and includes a driving unit (Transfer, Tx) to which a driving voltage is applied, and includes a first optical film with an adhesive layer interposed therebetween. Laminate the metal layer.
본 발명의 특징에 따른 터치 패널은,Touch panel according to a feature of the invention,
유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 상면에 형성되고 미세 패턴의 메쉬 구조로 형성되며 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 금속층으로 형성하며, 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx); 및A first electrostatic electrode pattern of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed on an upper surface of the first optical film made of an organic insulator or an inorganic insulator and formed of a fine pattern mesh structure and sensing a signal input by a touch; A sensing unit (Receive, Rx) connected to an edge region of the first electrostatic electrode pattern to form a first wiring electrode pattern representing a bus electrode as a metal layer, and detecting whether a touch is made and a touch position as a change in voltage value; And
유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 상면에 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 투명 도전층으로 형성하며, 구동 전압이 인가되는 구동부(Transfer, Tx)를 포함하며, 접착제층을 사이에 두고 제1 광학필름과 투명 도전층을 합지한다.Connected to the edge regions of the second electrostatic electrode pattern and the second electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes sensing a signal input by a touch on an upper surface of the second optical film made of an organic insulator or an inorganic insulator To form a second wiring electrode pattern representing the bus electrode as a transparent conductive layer, including a driving unit (Transfer, Tx) to which a driving voltage is applied, and laminating the first optical film and the transparent conductive layer with an adhesive layer interposed therebetween. .
본 발명의 특징에 따른 터치 패널은,Touch panel according to a feature of the invention,
유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 상면에 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 투명 도전층으로 형성하며, 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx); 및Edge regions of the first electrostatic electrode pattern and the first electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed on an upper surface of the first optical film made of an organic insulator or an inorganic insulator and detecting a signal input by a touch A sensing unit (Receive, Rx) connected to the control panel to form a first wiring electrode pattern representing the bus electrode as a transparent conductive layer, and detecting whether a touch is made and a touch position as a change in voltage value; And
유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 하면에 미세 패턴의 메쉬 구조로 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 금속층으로 형성하며, 구동 전압이 인가되는 구동부(Transfer, Tx)를 포함하며, 접착제층을 사이에 두고 제1 광학필름과 제2 광학필름을 합지한다.The second electrostatic electrode pattern and the second electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed of a fine pattern mesh structure on a lower surface of the second optical film made of an organic insulator or an inorganic insulator and detecting a signal input by a touch A second wiring electrode pattern, which is connected to an edge region of the electrostatic electrode pattern and represents a bus electrode, is formed of a metal layer, and includes a driving unit (Transfer, Tx) to which a driving voltage is applied, and includes a first optical film with an adhesive layer interposed therebetween. The second optical film is laminated.
본 발명의 특징에 따른 터치 패널은,Touch panel according to a feature of the invention,
유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 상면에 형성되고 미세 패턴의 메쉬 구조로 형성되며 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 금속층으로 형성하며, 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx); 및A first electrostatic electrode pattern of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed on an upper surface of the first optical film made of an organic insulator or an inorganic insulator and formed of a fine pattern mesh structure and sensing a signal input by a touch; A sensing unit (Receive, Rx) connected to an edge region of the first electrostatic electrode pattern to form a first wiring electrode pattern representing a bus electrode as a metal layer, and detecting whether a touch is made and a touch position as a change in voltage value; And
유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 하면에 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 투명 도전층으로 형성하며, 구동 전압이 인가되는 구동부(Transfer, Tx)를 포함하며, 접착제층을 사이에 두고 제1 광학필름과 제2 광학필름을 합지한다.Connected to the edge region of the second electrostatic electrode pattern and the second electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes sensing a signal input by a touch on a lower surface of the second optical film made of an organic insulator or an inorganic insulator And forming a second wiring electrode pattern representing the bus electrode as a transparent conductive layer, and including a driving unit (Transfer, Tx) to which a driving voltage is applied, and laminating the first optical film and the second optical film with an adhesive layer interposed therebetween. do.
본 발명의 특징에 따른 터치 패널의 제조 방법은,Method for manufacturing a touch panel according to a feature of the invention,
유기 절연체 또는 무기 절연체로 이루어진 광학필름의 양면 중 일면에 투명 도전층을 형성하고, 광학필름의 양면 중 타면에 금속층을 형성하는 단계; 및Forming a transparent conductive layer on one surface of both surfaces of an optical film made of an organic insulator or an inorganic insulator, and forming a metal layer on the other surface of both surfaces of the optical film; And
투명 도전층과 금속층을 선택적으로 제거하여 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 정전전극 패턴과 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 배선전극 패턴을 투명 도전층과 금속층 상에 각각 형성하는 단계를 포함한다.Optionally removing the transparent conductive layer and the metal layer, a plurality of X-axis electrostatic electrode or Y-axis electrostatic electrode pattern for detecting signal input by touch and a wiring electrode pattern connected to the edge region of the electrostatic electrode pattern and representing the bus electrode Forming on the transparent conductive layer and the metal layer, respectively.
본 발명의 특징에 따른 터치 패널의 제조 방법은,Method for manufacturing a touch panel according to a feature of the invention,
유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 일면에 투명 도전층을 형성하는 단계;Forming a transparent conductive layer on one surface of the first optical film made of an organic insulator or an inorganic insulator;
투명 도전층을 선택적으로 제거하여 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 형성하는 제1 패드를 준비하는 단계;A plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes for selectively detecting a signal input by a touch by selectively removing the transparent conductive layer and connected to edge regions of the first electrostatic electrode patterns to represent bus electrodes. Preparing a first pad for forming a wiring electrode pattern;
유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 일면에 금속층을 형성하는 단계;Forming a metal layer on one surface of the second optical film made of an organic insulator or an inorganic insulator;
금속층을 선택적으로 제거하여 제2 광학필름의 일면에 미세 패턴의 메쉬 구조로 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 형성하는 제2 패드를 준비하는 단계; 및The second electrostatic electrode pattern and the second electrostatic electrode of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes which are formed in a fine pattern mesh structure on one surface of the second optical film by selectively removing the metal layer and detect a signal input by a touch Preparing a second pad connected to an edge region of the electrode pattern to form a second wiring electrode pattern representing the bus electrode; And
접착제층을 사이에 두고 상기 제1 패드와 상기 제2 패드를 합지하는 단계를 포함한다.Laminating the first pad and the second pad with an adhesive layer therebetween.
전술한 구성에 의하여, 본 발명은 터치 패널의 센싱부와 구동부를 투명 도전층과 메탈 메쉬 형태의 금속층으로 이루어진 터치 센서로 구현하여 시인성을 개선하고 터치 감도를 향상시킨다.According to the above-described configuration, the present invention implements the sensing unit and the driving unit of the touch panel as a touch sensor made of a transparent conductive layer and a metal layer in the form of a metal mesh to improve visibility and improve touch sensitivity.
본 발명은 센싱부와 구동부를 양면 에칭으로 동시에 구현 가능하므로 공정을 간소화하여 제조 비용을 감소시키는 효과가 있다.According to the present invention, the sensing unit and the driving unit may be simultaneously implemented by double-sided etching, thereby reducing the manufacturing cost by simplifying the process.
도 1은 본 발명의 제1 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.1 is a view showing a method of manufacturing a touch panel according to a first embodiment of the present invention.
도 2는 본 발명의 실시예에 따른 미세 패턴의 메탈 메쉬 구조의 일례를 나타낸 도면이다.2 is a view showing an example of a metal mesh structure of a fine pattern according to an embodiment of the present invention.
도 3은 본 발명의 제1 실시예에 따른 터치 패널의 구조를 나타낸 분해사시도이다.3 is an exploded perspective view showing the structure of a touch panel according to a first embodiment of the present invention.
도 4 내지 도 6은 본 발명의 제2 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.4 to 6 illustrate a method of manufacturing a touch panel according to a second embodiment of the present invention.
도 8은 본 발명의 제3 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.8 illustrates a method of manufacturing a touch panel according to a third embodiment of the present invention.
도 9는 본 발명의 제4 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.9 is a view illustrating a method of manufacturing a touch panel according to a fourth embodiment of the present invention.
도 10은 본 발명의 제4 실시예에 따른 터치 패널의 구조를 나타낸 분해사시도이다.10 is an exploded perspective view showing the structure of a touch panel according to a fourth embodiment of the present invention.
도 11은 본 발명의 제5 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.11 illustrates a method of manufacturing a touch panel according to a fifth embodiment of the present invention.
도 12는 본 발명의 제6 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.12 illustrates a method of manufacturing a touch panel according to a sixth embodiment of the present invention.
아래에서는 첨부한 도면을 참고로 하여 본 발명의 실시예에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다. 그리고 도면에서 본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 유사한 부분에 대해서는 유사한 도면 부호를 붙였다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.
명세서 전체에서, 어떤 부분이 어떤 구성요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있는 것을 의미한다.Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.
이하의, 본 발명은 터치 패널용 패드의 구조와 제조 방법을 예시하고 있지만, 이와 같은 터치 패널용 패드는 터치 감지를 위한 패드로 접착제층을 이용하여 글라스를 부착하면 완성품인 터치 패널이 된다.Hereinafter, the present invention exemplifies a structure and a manufacturing method of the touch panel pad, but the touch panel pad is a pad for touch sensing, and when the glass is attached using an adhesive layer, the touch panel is a finished product.
터치 패널용 패드는 넓은 의미로 사용하여 터치 패널을 의미하는 것이므로 설명의 편의를 위해 터치 패널이라는 용어를 사용하기로 한다.Since the pad for a touch panel means a touch panel using a broad meaning, the term touch panel will be used for convenience of description.
이와 같은 터치 패널은 상호 정전용량 방식에 적용되는 것이며 다른 레이어와의 적층을 위해서 터치 패널용 패드의 일면에 접착제층(Optical Clear Adhesive, OCA)을 형성한다.Such a touch panel is applied to a mutual capacitance method, and forms an adhesive layer (Optical Clear Adhesive (OCA)) on one surface of a pad for a touch panel for lamination with another layer.
도 1은 본 발명의 제1 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.1 is a view showing a method of manufacturing a touch panel according to a first embodiment of the present invention.
본 발명의 제1 실시예에 따른 터치 패널의 제조 방법은 광학필름(110)의 양면 중 일면에 투명 도전층(120)을 형성하고 광학필름(110)의 양면 중 타면에 메탈 메쉬 구조의 금속층(130)을 형성한다.In the method of manufacturing a touch panel according to the first embodiment of the present invention, the transparent conductive layer 120 is formed on one surface of both surfaces of the optical film 110, and the metal layer having a metal mesh structure on the other surface of both surfaces of the optical film 110 ( 130).
광학필름(110)은 언더 코팅한 절연체를 나타낸 것으로, 절연체는 투명한 재질의 유기 절연체 또는 무기 절연체로 형성되고, 유기 절연체는 폴리이미드 또는 폴리에틸렌 테레프탈레이트(Polyethylene Terephthalate, PET), 폴리에틸렌나프탈레이트(Polyethylenenaphthalate, PEN), 폴리카보네이트(Polycarbonate, PC), PES(폴리에테르술폰), PAR(폴리아릴레이트), PMMA, COP, PI(폴리이미드), 아크릴의 플라스틱 소재를 포함하며 무기 절연체는 글라스(Glass) 소재, 광학 처리된 글라스 소재로 이루어진다.The optical film 110 represents an undercoated insulator, and the insulator is formed of an organic insulator or an inorganic insulator of a transparent material, and the organic insulator is polyimide or polyethylene terephthalate (PET), polyethylene naphthalate (Polyethylenenaphthalate, PEN), polycarbonate (PC), PES (polyethersulfone), PAR (polyarylate), PMMA, COP, PI (polyimide), and acrylic plastic materials, and the inorganic insulator is made of glass And made of optically treated glass material.
전술한 언더 코팅은 ITO 패턴후 ITO 유무가 확인되지 않도록 처리하는 코팅으로, 즉 정전 용량 ITO 필름 제작시 ITO가 존재하는 부분과 존재하지 않는 부분이 눈에서 감지하지 못하도록 ITO 하지층에 광학 처리를 하는 것을 의미한다. 즉, 언더 코팅은 건식 방식(증착)으로 SiO2,TiO2 Ceo2 등을 올리는 경우도 있고, 습식 방식으로 약품 처리를 하는 경우도 있다.The above-described undercoating is a coating for treating the presence or absence of ITO after the ITO pattern, that is, an optical treatment is applied to the ITO base layer so that the presence or absence of ITO is not detected by the eye during capacitive ITO film production. Means that. That is, the undercoat may in some cases raising the SiO 2, TiO 2 Ceo 2 such as a dry method (vapor deposition), there is also a case that a chemical treatment by a wet method.
투명 도전층(120)은 터치 패널의 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx)이며, 투명 전도성 산화물(Transparent Conducting Oxide, TCO)과 같은 투명한 재질의 전도성 물질로 형성되며, 구체적으로는 ITO 또는 IZO(Indium Zinc Oxide)를 포함하거나 ITO, IZO, SnO2, AZO, 탄소나노튜브(Carbon Nano Tube, CNT), 그라핀(Graphene), 전도성 폴리머, 은 나노와이어(Silver Nanowires, AGNW), Hybrid AGNW(CNT+AGNW), Hybrid 그라핀(AGNW+그라핀) 등으로 이루어지는 투명 전도성 물질로 형성한다.The transparent conductive layer 120 is a sensing unit (Receive, Rx) that detects whether the touch panel is touched and the touch position as a change in voltage value, and is made of a transparent conductive material such as transparent conducting oxide (TCO). It is formed, specifically ITO or IZO (Indium Zinc Oxide) containing or ITO, IZO, SnO 2 , AZO, Carbon Nanotube (CNT), graphene (Graphene), conductive polymer, silver nanowires ( Silver nanowires, AGNW), Hybrid AGNW (CNT + AGNW), Hybrid graphene (AGNW + graphene), etc. are formed of a transparent conductive material.
금속층(130)은 메탈 메쉬(Metal Mesh) 소재로서, 터치 패널의 구동 전압이 인가되는 구동부(Transfer, Tx)이며, APC, Cu, Cu alloy, Ag, Ag alloy, Ni+Cr, 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+Ti/Cu/Ni+Cu+Ti, 카본 등 전도성 물질을 모두 포함하는 개념이고 인쇄, 증착, 페이스트 및 도포의 공지된 기술로 형성한다.The metal layer 130 is a metal mesh material, and is a driver (Transfer, Tx) to which a driving voltage of a touch panel is applied, and includes 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.
예를 들면, 금속층(130)은 은 페이스트로 형성할 수 있고, 구리를 증착시킬 수도 있는 등 다양한 방법이 가능하다.For example, the metal layer 130 may be formed of a silver paste, or various methods may be used, such as depositing copper.
터치 패널의 상호 정전용량 방식은 구동부에 구동 전압이 인가되면, 구동부와 센싱부의 사이에서 상호 캡(Mutual Cap)이 형성되고 센싱부에서 상호 캡의 전압값의 변화를 감지하여 터치 여부 및 터치 위치를 검출하게 된다. In the mutual capacitance method of the touch panel, when a driving voltage is applied to the driving unit, a mutual cap is formed between the driving unit and the sensing unit, and 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.
다음으로, 도 1에 도시된 바와 같이, 터치 패널의 제조 방법은 포토리소그래피(Photolithography)의 공정에 의해 투명 도전층(120)과 금속층(130)을 선택적으로 제거하면 광학필름(110)의 일면에 투명 도전층(120)으로 이루어지고 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴(121)과 제1 정전전극 패턴(121)의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴(122)을 형성한다.Next, as shown in FIG. 1, in the method of manufacturing the touch panel, when the transparent conductive layer 120 and the metal layer 130 are selectively removed by a process of photolithography, one surface of the optical film 110 may be removed. A first conductive layer 120 formed of a transparent conductive layer 120 and connected to edge regions of the first electrostatic electrode pattern 121 and the first electrostatic electrode pattern 121 of the plurality of X-axis electrostatic electrodes or the Y-axis electrostatic electrode to represent a bus electrode The wiring electrode pattern 122 is formed.
또한, 터치 패널의 제조 방법은 광학필름(110)의 타면에 금속층(130)으로 이루어지고 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴(121)과 제1 정전전극 패턴(121)의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴(122)을 형성한다.In addition, the manufacturing method of the touch panel is made of a metal layer 130 on the other surface of the optical film 110 and the first electrostatic electrode pattern 121 and the first electrostatic electrode pattern 121 of the plurality of X-axis electrostatic electrode or Y-axis electrostatic electrode ( A first wiring electrode pattern 122 is formed to be connected to the edge of 121 to represent the bus electrode.
즉, 포토리소그래피의 공정은 드라이필름 라미네이팅, 노광, 현상, 투명 도전층 에칭, 금속층 에칭, 박리를 수행한다.That is, the process of photolithography performs dry film laminating, exposure, development, transparent conductive layer etching, metal layer etching, and peeling.
여기서, 금속층(130)으로 형성된 제2 정전전극 패턴(131)과 제2 배선전극 패턴(132)은 미세 패턴의 메탈 메쉬 구조로 이루어진다.Here, the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 formed of the metal layer 130 have a fine mesh metal mesh structure.
도 2에 도시된 바와 같이, 메탈 메쉬 구조는 복수의 제1 선형 전극부들과 복수의 제1 선형 전극부들과 상호 교차하는 복수의 제2 선형 전극부들을 통해 미세 패턴으로 이루어져 있다.As shown in FIG. 2, the metal mesh structure has a fine pattern 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.
이러한 포토리소그래피의 공정은 감광성 소재(예를 들면, 드라이필름 등)를 투명 도전층(120)과 금속층(130)의 위에 형성하고 패턴이 형성된 아트워크 필름을 이용하여 UV 조사하면 감광성 소재가 패턴이 형성되며(노광 공정), 약한 알칼리 용액을 이용하여 패턴이 형성된 감광성 소재가 형성된다(현상 공정).In the photolithography process, a photosensitive material (for example, a dry film) is formed on the transparent conductive layer 120 and the metal layer 130 and UV-irradiated using a patterned artwork film. It forms (exposure process), and the patterned photosensitive material is formed using a weak alkali solution (development process).
본 발명은 패턴이 형성된 아트워크 필름을 예시하고 있지만, 이에 한정하지 않고 패턴이 형성된 패턴 툴(Tool)이면 어떠한 것도 가능하며, 패턴 툴 없이 직접적으로 패턴을 구현하는 장비를 이용하여 노광 공정을 수행할 수도 있다. Although 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.
정전전극 패턴은 복수의 X축 정전전극을 포함한 제1축 패턴과, 제1축 패턴과 일정 거리 이격되어 직각 방향으로 교차하는 복수의 Y축 정전전극을 포함한 제2축 패턴을 나타내고, 배선전극 패턴은 각각의 X축 정전전극의 일측 끝단과 연결된 각각의 버스 전극과, 각각의 Y축 정전전극의 일측 끝단과 연결된 각각의 버스 전극을 나타낸다.The electrostatic electrode pattern represents a first axis pattern including a plurality of X-axis electrostatic electrodes and a second axis pattern including a plurality of Y-axis electrostatic electrodes crossing at right angles with a predetermined distance from the first axis pattern. Denotes each bus electrode connected to one end of each X-axis electrostatic electrode, and each bus electrode connected to one end of each Y-axis electrostatic electrode.
정전전극 패턴은 터치 패널의 원도우 영역(화면이 표시되는 영역)에 해당하는 부분의 복수개의 X축 또는 Y축 정전전극을 나타내는 것으로서 사용자의 터치 패턴 영역을 나타낸다.The electrostatic electrode pattern represents a plurality of X-axis or Y-axis electrostatic electrodes of a portion corresponding to the window area (the area where the screen is displayed) of the touch panel, and represents the touch pattern area of the user.
배선전극 패턴은 정전전극 패턴의 각각의 X축 또는 Y축 정전전극의 일측 끝단과 연결되고 터치 패널의 원도우 영역을 제외한 가장자리 영역의 금속 회로이며, 정전전극 패턴과 인쇄회로기판과 연결시켜 사용자의 터치 패턴을 감지, 제어하는 버스 전극을 나타낸다.The wiring electrode pattern is a metal circuit of the edge region except for the window region of the touch panel, connected to one end of each X-axis or Y-axis electrostatic electrode of the electrostatic electrode pattern, and connected to the electrostatic electrode pattern and the printed circuit board to the user's touch. It represents a bus electrode that senses and controls the pattern.
메탈 메쉬의 형성 공법은 메탈 증착 후 메탈 에칭 약품을 이용하여 회로 형성을 하는 포토리소그래피 공법을 기재하고 있지만 이에 한정하지 않고 실버할라이드 소재를 이용한 포토리소그래피 공법, 실버 할라이드 확산 전사법을 이용한 포토리소그래피 공법, PET에 홈을 파서 홈에 도전성 금속을 매꿔주는 임프린트 공법, 회로 전사 방식으로 인쇄하는 그라비아 옵셋, 리버스 옵셋 공법, 레이저 인쇄 공법, 잉크젯 프린터를 이용한 비접촉 인쇄 공법이 있다.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.
본 발명의 제1 실시예는 투명 도전층(120)과 금속층(130)을 포토리소그래피의 공정으로 동시에 가공할 수 있고, 투명 도전층(120)이나 금속층(130)을 포토리소그래피의 공정으로 선가공한 후, 나머지 층을 임프린트, 그라비아 옵셋, 리버스 옵셋, 잉크젯 프린터, 실버할라이드 소재의 포토리소그래피 중 하나의 공정으로 가공할 수 있다.In the first embodiment of the present invention, the transparent conductive layer 120 and the metal layer 130 can be simultaneously processed by the photolithography process, and the transparent conductive layer 120 or the metal layer 130 is pre-processed by the photolithography process. The remaining layers can then be processed in one of: imprint, gravure offset, reverse offset, inkjet printer, photolithography of silver halide material.
특히, 투명 도전층(120)은 포토리소그래피의 공정으로 가공하고 금속층(130)을 임프린트, 그라비아 옵셋, 리버스 옵셋, 잉크젯 프린터, 실버할라이드 소재의 포토리소그래피 중 하나의 공정으로 가공하는 것이 바람직하다. 물론 가공 순서와 방법이 바뀌어도 상관없다.In particular, the transparent conductive layer 120 may be processed by a photolithography process and the metal layer 130 may be processed by one of imprint, gravure offset, reverse offset, inkjet printer, and photolithography of silver halide. Of course, the order and method of processing may change.
도 3은 본 발명의 제1 실시예에 따른 터치 패널의 구조를 나타낸 분해사시도이다.3 is an exploded perspective view showing the structure of a touch panel according to a first embodiment of the present invention.
본 발명의 제1 실시예에 따른 터치 패널은 광학필름(110)을 사이에 두고, 상부에 센싱부(Rx)의 탑(Top) 패턴과 하부에 구동부(Tx)의 바텀(Bottom) 패턴을 형성한다.In the touch panel according to the first embodiment of the present invention, the top pattern of the sensing unit Rx and the bottom pattern of the driving unit Tx are formed in the upper portion with the optical film 110 interposed therebetween. do.
광학필름(110)의 상면에는 센싱부로서 복수개의 X축 또는 Y축 정전전극의 제1 정전전극 패턴(121)과 이에 연결된 제1 배선전극 패턴(122)을 형성한다. 여기서, 제1 정전전극 패턴(121)과 제1 배선전극 패턴(122)은 투명 도전층(120)으로 이루어져 있다.The first electrostatic electrode pattern 121 of the plurality of X-axis or Y-axis electrostatic electrodes and the first wiring electrode pattern 122 connected thereto are formed on the upper surface of the optical film 110 as a sensing unit. Here, the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 are made of a transparent conductive layer 120.
광학필름(110)의 하면에는 구동부로서 메탈 메쉬 구조의 복수개의 X축 또는 Y축 정전전극의 제2 정전전극 패턴(131)과 이에 연결된 제2 배선전극 패턴(132)을 형성한다. 여기서, 제2 정전전극 패턴(131)과 제2 배선전극 패턴(132)은 금속층(130)으로 이루어져 있다.A second electrostatic electrode pattern 131 of a plurality of X-axis or Y-axis electrostatic electrodes having a metal mesh structure and a second wiring electrode pattern 132 connected thereto are formed on a lower surface of the optical film 110 as a driving unit. Here, the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 are made of a metal layer 130.
도 4 내지 도 6은 본 발명의 제2 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다. 4 to 6 illustrate a method of manufacturing a touch panel according to a second embodiment of the present invention.
도 4에 도시된 바와 같이, 본 발명의 제2 실시예에 따른 터치 패널의 제조 방법은 제1 광학필름(111)의 상면에 투명 도전층(120)을 형성하고 포토리소그래피(Photolithography)의 공정을 이용하여 투명 도전층(120)을 선택적으로 제거한다.As shown in FIG. 4, in the method of manufacturing the touch panel according to the second embodiment of the present invention, the transparent conductive layer 120 is formed on the upper surface of the first optical film 111 and the photolithography process is performed. The transparent conductive layer 120 is selectively removed.
이에 따라 터치 패널은 제1 광학필름(111)의 상면에 투명 도전층(120)으로 이루어지고 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴(121)과 제1 정전전극 패턴(121)의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴(122)을 포함한 센싱부를 형성한다.Accordingly, the touch panel is formed of the transparent conductive layer 120 on the upper surface of the first optical film 111, and the first electrostatic electrode pattern 121 and the first electrostatic electrode pattern 121 of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes A sensing unit including a first wiring electrode pattern 122 that is connected to an edge region of 121 and representing a bus electrode is formed.
다음으로, 도 5에 도시된 바와 같이, 본 발명의 제2 실시예에 따른 터치 패널의 제조 방법은 제2 광학필름(112)의 상면에 금속층(130)을 형성하고 전술한 메탈 메쉬의 형성 공법을 이용하여 금속층(130)을 선택적으로 제거한다.Next, as shown in FIG. 5, in the method of manufacturing the touch panel according to the second embodiment of the present invention, the metal layer 130 is formed on the upper surface of the second optical film 112, and the metal mesh forming method is described above. The metal layer 130 is selectively removed using.
이에 따라 터치 패널은 제2 광학필름(112)의 상면에 금속층(130)으로 이루어지고 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴(131)과 제2 정전전극 패턴(131)의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴(132)을 포함한 구동부를 형성한다.Accordingly, the touch panel is formed of the metal layer 130 on the upper surface of the second optical film 112 and the second electrostatic electrode pattern 131 and the second electrostatic electrode pattern 131 of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes. A driving part including a second wiring electrode pattern 132 representing a bus electrode connected to an edge region of the substrate).
도 6에 도시된 바와 같이, 터치 패널은 센싱부와 구동부를 개별 가공한 후, OCA(Optical Clear Adhesive) 또는 OCR(Optical Clear Resin)의 접착제층(140)을 사이에 두고 센싱부와 구동부를 합지한다.As illustrated in FIG. 6, the touch panel separately processes the sensing unit and the driving unit, and then laminates the sensing unit and the driving unit with the adhesive layer 140 of OCA (Optical Clear Adhesive) or OCR (Optical Clear Resin) interposed therebetween. do.
도 7에 도시된 바와 같이, 터치 패널은 제1 광학필름(111)의 상면에 센싱부(Rx)의 탑(Top) 패턴을 가공하여 준비하고 제2 광학필름(112)의 상면에 구동부(Tx)의 바텀(Bottom) 패턴을 가공하여 준비한다.As illustrated in FIG. 7, the touch panel is prepared by processing a top pattern of the sensing unit Rx on an upper surface of the first optical film 111, and a driving unit Tx on an upper surface of the second optical film 112. ) Bottom pattern is prepared by processing.
탑 패턴은 센싱부로서 복수개의 X축 또는 Y축 정전전극의 제1 정전전극 패턴(121)과 이에 연결된 제1 배선전극 패턴(122)을 형성한다. 여기서, 제1 정전전극 패턴(121)과 제1 배선전극 패턴(122)은 투명 도전층(120)으로 이루어져 있다.The top pattern forms a first capacitive electrode pattern 121 of the plurality of X-axis or Y-axis electrostatic electrodes and a first wiring electrode pattern 122 connected thereto as a sensing unit. Here, the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 are made of a transparent conductive layer 120.
바텀 패턴은 구동부로서 메탈 메쉬 구조의 복수개의 X축 또는 Y축 정전전극의 제2 정전전극 패턴(131)과 이에 연결된 제2 배선전극 패턴(132)을 형성한다. 여기서, 제2 정전전극 패턴(131)과 제2 배선전극 패턴(132)은 금속층(130)으로 이루어져 있다.The bottom pattern forms a second electrostatic electrode pattern 131 of the plurality of X-axis or Y-axis electrostatic electrodes of the metal mesh structure and the second wiring electrode pattern 132 connected thereto as a driving unit. Here, the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 are made of a metal layer 130.
다시 말해, 터치 패널은 탑 패턴과 바텀 패턴을 개별 가공한 후, OCA 또는 OCR의 접착제층(140)을 사이에 두고 탑 패턴과 바텀 패턴을 합지한다.In other words, the touch panel individually processes the top pattern and the bottom pattern, and then laminates the top pattern and the bottom pattern with the adhesive layer 140 of the OCA or OCR interposed therebetween.
다른 실시예로서, 도 7에 도시된 바와 같이, 투명 도전층(120)으로 이루어진 제1 배선전극 패턴(122)은 제1 배선전극 패턴(122)의 끝단 부분으로 연성 인쇄회로기판(Flexible Printed Circuit Board, FPCB)이 결합되는 연결 전극 영역(123)을 금속층(130)으로 형성할 수도 있다.In another embodiment, as shown in FIG. 7, the first wiring electrode pattern 122 made of the transparent conductive layer 120 is a flexible printed circuit board as an end portion of the first wiring electrode pattern 122. The connection electrode region 123 to which the board and the FPCB are coupled may be formed of the metal layer 130.
이하의 실시예에서도 투명 도전층(120)으로 이루어진 배선전극 패턴 중 연결 전극 영역(123)을 금속층(130)으로 형성할 수 있다.In the following embodiments, the connection electrode region 123 of the wiring electrode pattern formed of the transparent conductive layer 120 may be formed of the metal layer 130.
도 8은 본 발명의 제3 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.8 illustrates a method of manufacturing a touch panel according to a third embodiment of the present invention.
도 8에 도시된 바와 같이, 본 발명의 제3 실시예에 따른 터치 패널의 제조 방법은 제1 광학필름(111)의 상면에 투명 도전층(120)을 형성하고 포토리소그래피(Photolithography)의 공정을 이용하여 투명 도전층(120)을 선택적으로 제거하여 제1 광학필름(111)의 상면에 투명 도전층(120)으로 이루어진 제1 정전전극 패턴(121)과 제1 배선전극 패턴(122)을 포함한 센싱부를 형성한다.As shown in FIG. 8, in the method of manufacturing the touch panel according to the third embodiment of the present invention, the transparent conductive layer 120 is formed on the upper surface of the first optical film 111 and the photolithography process is performed. Selectively removing the transparent conductive layer 120 by using the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 formed of the transparent conductive layer 120 on the upper surface of the first optical film 111. Form a sensing unit.
다음으로, 본 발명의 제3 실시예에 따른 터치 패널의 제조 방법은 제2 광학필름(112)의 하면에 금속층(130)을 형성하고 전술한 메탈 메쉬의 형성 공법을 이용하여 금속층(130)을 선택적으로 제거하여 제2 광학필름(112)의 하면에 금속층(130)으로 이루어진 제2 정전전극 패턴(131)과 제2 배선전극 패턴(132)을 포함한 구동부를 형성한다.Next, in the method of manufacturing the touch panel according to the third embodiment of the present invention, the metal layer 130 is formed on the bottom surface of the second optical film 112 and the metal layer 130 is formed using the above-described metal mesh formation method. The driving unit may be selectively removed to form a driving part including the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 formed of the metal layer 130 on the lower surface of the second optical film 112.
터치 패널은 센싱부와 구동부를 개별 가공한 후, OCA 또는 OCR의 접착제층(140)을 사이에 두고 센싱부와 구동부를 합지한다.The touch panel separately processes the sensing unit and the driving unit, and then laminates the sensing unit and the driving unit with the adhesive layer 140 of the OCA or OCR interposed therebetween.
도 9는 본 발명의 제4 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.9 is a view illustrating a method of manufacturing a touch panel according to a fourth embodiment of the present invention.
본 발명의 제4 실시예에 따른 터치 패널의 제조 방법은 광학필름(110)의 양면 중 일면에 메탈 메쉬 구조의 금속층(130)을 형성하고 광학필름(110)의 양면 중 타면에 투명 도전층(120)을 형성한다.In the manufacturing method of the touch panel according to the fourth embodiment of the present invention, the metal layer 130 having the metal mesh structure is formed on one surface of both surfaces of the optical film 110, and the transparent conductive layer is formed on the other surface of both surfaces of the optical film 110. 120).
다음으로, 터치 패널의 제조 방법은 포토리소그래피(Photolithography)의 공정에 의해 투명 도전층(120)과 금속층(130)을 선택적으로 제거하여 광학필름(110)의 일면에 금속층(130)으로 이루어지고 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴(131)과 제2 정전전극 패턴(131)의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴(132)을 형성한다.Next, the manufacturing method of the touch panel is made of a metal layer 130 on one surface of the optical film 110 by selectively removing the transparent conductive layer 120 and the metal layer 130 by a process of photolithography. A second wiring electrode pattern 132 representing the bus electrode is formed by connecting the second electrostatic electrode pattern 131 and the edge region of the second electrostatic electrode pattern 131 of the X-axis electrostatic electrode or the Y-axis electrostatic electrode.
또한, 터치 패널의 제조 방법은 광학필름(110)의 타면에 투명 도전층(120)으로 이루어지고, 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴(121)과 제1 정전전극 패턴(121)의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴(122)을 형성한다.In addition, the manufacturing method of the touch panel is made of a transparent conductive layer 120 on the other surface of the optical film 110, the first electrostatic electrode pattern 121 and the first electrostatic of the plurality of X-axis electrostatic electrode or Y-axis electrostatic electrode The first wiring electrode pattern 122 representing the bus electrode is formed by being connected to the edge region of the electrode pattern 121.
즉, 포토리소그래피의 공정은 드라이필름 라미네이팅, 노광, 현상, 투명 도전층 에칭, 금속층 에칭, 박리를 수행한다.That is, the process of photolithography performs dry film laminating, exposure, development, transparent conductive layer etching, metal layer etching, and peeling.
도 10은 본 발명의 제4 실시예에 따른 터치 패널의 구조를 나타낸 분해사시도이다.10 is an exploded perspective view showing the structure of a touch panel according to a fourth embodiment of the present invention.
본 발명의 제4 실시예에 따른 터치 패널은 광학필름(110)을 사이에 두고, 상부에 센싱부(Rx)의 탑(Top) 패턴과 하부에 구동부(Tx)의 바텀(Bottom) 패턴을 형성한다.In the touch panel according to the fourth embodiment of the present invention, the top pattern of the sensing unit Rx and the bottom pattern of the driving unit Tx are formed at the upper portion with the optical film 110 interposed therebetween. do.
광학필름(110)의 상면에는 센싱부로서 메탈 메쉬 구조의 복수개의 X축 또는 Y축 정전전극의 제2 정전전극 패턴(131)과 이에 연결된 제2 배선전극 패턴(132)을 형성한다. 여기서, 제2 정전전극 패턴(131)과 제2 배선전극 패턴(132)은 금속층(130)으로 이루어져 있다.The second electrostatic electrode pattern 131 of the plurality of X-axis or Y-axis electrostatic electrodes of the metal mesh structure and the second wiring electrode pattern 132 connected thereto are formed on the upper surface of the optical film 110 as a sensing unit. Here, the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 are made of a metal layer 130.
광학필름(110)의 하면에는 구동부로서 복수개의 X축 또는 Y축 정전전극의 제1 정전전극 패턴(121)과 이에 연결된 제1 배선전극 패턴(122)을 형성한다. 여기서, 제1 정전전극 패턴(121)과 제1 배선전극 패턴(122)은 투명 도전층(120)으로 이루어져 있다.The first electrostatic electrode pattern 121 of the plurality of X-axis or Y-axis electrostatic electrodes and the first wiring electrode pattern 122 connected thereto are formed on the bottom surface of the optical film 110 as a driving unit. Here, the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 are made of a transparent conductive layer 120.
도 11은 본 발명의 제5 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.11 illustrates a method of manufacturing a touch panel according to a fifth embodiment of the present invention.
본 발명의 제5 실시예에 따른 터치 패널의 제조 방법은 제1 광학필름(111)의 상면에 금속층(130)을 형성하고 전술한 메탈 메쉬의 형성 공법을 이용하여 금속층(130)을 선택적으로 제거하여 제1 광학필름(111)의 상면에 금속층(130)으로 이루어진 제1 정전전극 패턴(121)과 제1 배선전극 패턴(122)을 포함한 센싱부를 형성한다.In the method of manufacturing the touch panel according to the fifth embodiment of the present invention, the metal layer 130 is formed on the upper surface of the first optical film 111 and the metal layer 130 is selectively removed using the above-described metal mesh formation method. The sensing unit including the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 formed of the metal layer 130 is formed on the upper surface of the first optical film 111.
다음으로, 본 발명의 제2 실시예에 따른 터치 패널의 제조 방법은 제2 광학필름(112)의 상면에 투명 도전층(120)을 형성하고 포토리소그래피(Photolithography)의 공정을 이용하여 투명 도전층(120)을 선택적으로 제거하여 제2 광학필름(112)의 상면에 투명 도전층(120)으로 이루어진 제2 정전전극 패턴(131)과 제2 배선전극 패턴(132)을 포함한 구동부를 형성한다.Next, in the method of manufacturing the touch panel according to the second embodiment of the present invention, the transparent conductive layer 120 is formed on the upper surface of the second optical film 112 and the transparent conductive layer is formed by using a photolithography process. The driver 120 may be selectively removed to form a driving part including the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 formed of the transparent conductive layer 120 on the upper surface of the second optical film 112.
도 11에 도시된 바와 같이, 터치 패널은 센싱부와 구동부를 개별 가공한 후, OCA 또는 OCR의 접착제층(140)을 사이에 두고 센싱부와 구동부를 합지한다.As shown in FIG. 11, the touch panel separately processes the sensing unit and the driving unit, and then laminates the sensing unit and the driving unit with the adhesive layer 140 of the OCA or OCR interposed therebetween.
도 12는 본 발명의 제6 실시예에 따른 터치 패널의 제조 방법을 나타낸 도면이다.12 illustrates a method of manufacturing a touch panel according to a sixth embodiment of the present invention.
본 발명의 제6 실시예에 따른 터치 패널의 제조 방법은 제1 광학필름(111)의 상면에 금속층(130)을 형성하고 전술한 메탈 메쉬의 형성 공법을 이용하여 금속층(130)을 선택적으로 제거하여 제1 광학필름(111)의 상면에 금속층(130)으로 이루어진 제1 정전전극 패턴(121)과 제1 배선전극 패턴(122)을 포함한 센싱부를 형성한다.In the manufacturing method of the touch panel according to the sixth embodiment of the present invention, the metal layer 130 is formed on the upper surface of the first optical film 111 and the metal layer 130 is selectively removed using the above-described metal mesh formation method. The sensing unit including the first electrostatic electrode pattern 121 and the first wiring electrode pattern 122 formed of the metal layer 130 is formed on the upper surface of the first optical film 111.
다음으로, 본 발명의 제6 실시예에 따른 터치 패널의 제조 방법은 제2 광학필름(112)의 하면에 투명 도전층(120)을 형성하고 포토리소그래피(Photolithography)의 공정을 이용하여 투명 도전층(120)을 선택적으로 제거하여 제2 광학필름(112)의 하면에 투명 도전층(120)으로 이루어진 제2 정전전극 패턴(131)과 제2 배선전극 패턴(132)을 포함한 구동부를 형성한다.Next, in the method of manufacturing the touch panel according to the sixth embodiment of the present invention, the transparent conductive layer 120 is formed on the bottom surface of the second optical film 112, and the transparent conductive layer is formed using a photolithography process. The driver 120 may be selectively removed to form a driving part including the second electrostatic electrode pattern 131 and the second wiring electrode pattern 132 formed of the transparent conductive layer 120 on the lower surface of the second optical film 112.
도 12에 도시된 바와 같이, 터치 패널은 센싱부와 구동부를 개별 가공한 후, OCA 또는 OCR의 접착제층(140)을 사이에 두고 센싱부와 구동부를 합지한다.As illustrated in FIG. 12, the touch panel separately processes the sensing unit and the driving unit, and then laminates the sensing unit and the driving unit with the adhesive layer 140 of the OCA or OCR interposed therebetween.
이상에서 설명한 본 발명의 실시예는 장치 및/또는 방법을 통해서만 구현이 되는 것은 아니며, 본 발명의 실시예의 구성에 대응하는 기능을 실현하기 위한 프로그램, 그 프로그램이 기록된 기록 매체 등을 통해 구현될 수도 있으며, 이러한 구현은 앞서 설명한 실시예의 기재로부터 본 발명이 속하는 기술분야의 전문가라면 쉽게 구현할 수 있는 것이다.The embodiments of the present invention described above are not implemented only by the apparatus and / or method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiments of the present invention, a recording medium on which the program is recorded, and the like. Such implementations may be readily implemented by those skilled in the art from the description of the above-described embodiments.
이상에서 본 발명의 실시예에 대하여 상세하게 설명하였지만 본 발명의 권리범위는 이에 한정되는 것은 아니고 다음의 청구범위에서 정의하고 있는 본 발명의 기본 개념을 이용한 당업자의 여러 변형 및 개량 형태 또한 본 발명의 권리범위에 속하는 것이다.Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.
[부호의 설명][Description of the code]
110: 광학필름110: optical film
111: 제1 광학필름111: first optical film
112: 제2 광학필름112: second optical film
120: 투명 도전층120: transparent conductive layer
121: 제1 정전전극 패턴121: first electrostatic electrode pattern
122: 제1 배선전극 패턴122: first wiring electrode pattern
123: 연결 전극 영역123: connection electrode region
130: 금속층130: metal layer
131: 제2 정전전극 패턴131: second electrostatic electrode pattern
132: 제2 배선전극 패턴132: second wiring electrode pattern
140: 접착제층140: adhesive layer
전술한 구성에 의하여, 본 발명은 터치 패널의 센싱부와 구동부를 투명 도전층과 메탈 메쉬 형태의 금속층으로 이루어진 터치 센서로 구현하여 시인성을 개선하고 터치 감도를 향상시킨다.According to the above-described configuration, the present invention implements the sensing unit and the driving unit of the touch panel as a touch sensor made of a transparent conductive layer and a metal layer in the form of a metal mesh to improve visibility and improve touch sensitivity.
본 발명은 센싱부와 구동부를 양면 에칭으로 동시에 구현 가능하므로 공정을 간소화하여 제조 비용을 감소시키는 효과가 있다.According to the present invention, the sensing unit and the driving unit may be simultaneously implemented by double-sided etching, thereby reducing the manufacturing cost by simplifying the process.

Claims (18)

  1. 유기 절연체 또는 무기 절연체로 이루어진 광학필름;An optical film made of an organic insulator or an inorganic insulator;
    상기 광학필름의 양면 중 일면에 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 상기 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 형성하는 투명 도전층; 및Bus electrodes formed on one surface of both surfaces of the optical film and connected to a first electrostatic electrode pattern of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes for sensing a signal input by a touch and an edge region of the first electrostatic electrode pattern. A transparent conductive layer forming a first wiring electrode pattern; And
    상기 광학필름의 양면 중 타면에 미세 패턴의 메쉬 구조로 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 상기 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 형성하는 금속층Edges of the second electrostatic electrode pattern and the second electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes which are formed in a fine pattern mesh structure on both surfaces of the both sides of the optical film and detect a signal input by a touch A metal layer connected to the region to form a second wiring electrode pattern representing the bus electrode
    을 포함하는 터치 패널.Touch panel comprising a.
  2. 제1항에 있어서,The method of claim 1,
    상기 투명 도전층은 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx)이고, 상기 금속층은 구동 전압이 인가되는 구동부(Transfer, Tx)인 터치 패널.The transparent conductive layer is a sensing unit (Receive, Rx) for detecting whether the touch and the touch position as a change in the voltage value, the metal layer is a touch panel (Transfer, Tx) to which a driving voltage is applied.
  3. 제1항에 있어서,The method of claim 1,
    상기 금속층은 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx)이고, 상기 투명 도전층은 구동 전압이 인가되는 구동부(Transfer, Tx)인 터치 패널.The metal layer is a sensing unit (Receive, Rx) for detecting whether the touch and the touch position as a change in the voltage value, the transparent conductive layer is a touch panel (Transfer, Tx) to which a driving voltage is applied.
  4. 유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 상면에 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 상기 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 투명 도전층으로 형성하며, 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx); 및First electrode patterns of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed on an upper surface of a first optical film made of an organic insulator or an inorganic insulator and detecting a signal input by a touch, and edges of the first electrostatic electrode patterns A sensing unit (Receive, Rx) connected to a region to form a first wiring electrode pattern representing a bus electrode as a transparent conductive layer, and detecting whether a touch is made and a touch position as a change in voltage value; And
    유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 상면에 미세 패턴의 메쉬 구조로 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 상기 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 금속층으로 형성하며, 구동 전압이 인가되는 구동부(Transfer, Tx)를 포함하며, 접착제층을 사이에 두고 상기 제1 광학필름과 상기 금속층을 합지하는 터치 패널.The second electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed of a fine pattern mesh structure on the upper surface of the second optical film made of an organic insulator or an inorganic insulator and detecting a signal input by a touch, and the second The second wiring electrode pattern connected to the edge region of the electrostatic electrode pattern is formed of a metal layer, and includes a driver (Transfer, Tx) to which a driving voltage is applied, and includes the first optical layer with an adhesive layer interposed therebetween. A touch panel for laminating a film and the metal layer.
  5. 유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 상면에 형성되고 미세 패턴의 메쉬 구조로 형성되며 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 상기 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 금속층으로 형성하며, 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx); 및A first electrostatic electrode pattern of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed on an upper surface of the first optical film made of an organic insulator or an inorganic insulator and formed of a fine pattern mesh structure and sensing a signal input by a touch; A sensing unit (Receive, Rx) connected to an edge of the first electrostatic electrode pattern to form a first wiring electrode pattern representing a bus electrode as a metal layer, and detecting whether a touch is made and a touch position as a change in voltage value; And
    유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 상면에 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 상기 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 투명 도전층으로 형성하며, 구동 전압이 인가되는 구동부(Transfer, Tx)를 포함하며, 접착제층을 사이에 두고 상기 제1 광학필름과 상기 투명 도전층을 합지하는 터치 패널.A second electrostatic electrode pattern of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes for sensing a signal input by a touch on an upper surface of the second optical film made of an organic insulator or an inorganic insulator, and an edge region of the second electrostatic electrode pattern A second wiring electrode pattern connected to form a transparent conductive layer is formed to include a bus electrode, and includes a driving unit (Transfer, Tx) to which a driving voltage is applied. The first optical film and the transparent conductive layer are disposed with an adhesive layer interposed therebetween. Touch panel to laminate.
  6. 유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 상면에 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 상기 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 투명 도전층으로 형성하며, 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx); 및First electrode patterns of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed on an upper surface of a first optical film made of an organic insulator or an inorganic insulator and detecting a signal input by a touch, and edges of the first electrostatic electrode patterns A sensing unit (Receive, Rx) connected to a region to form a first wiring electrode pattern representing a bus electrode as a transparent conductive layer, and detecting whether a touch is made and a touch position as a change in voltage value; And
    유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 하면에 미세 패턴의 메쉬 구조로 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 상기 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 금속층으로 형성하며, 구동 전압이 인가되는 구동부(Transfer, Tx)를 포함하며, 접착제층을 사이에 두고 상기 제1 광학필름과 상기 제2 광학필름을 합지하는 터치 패널.The second electrostatic electrode pattern of the plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed of a fine pattern mesh structure on a lower surface of the second optical film made of an organic insulator or an inorganic insulator and detecting a signal input by a touch, and the second The second wiring electrode pattern connected to the edge region of the electrostatic electrode pattern is formed of a metal layer, and includes a driver (Transfer, Tx) to which a driving voltage is applied, and includes the first optical layer with an adhesive layer interposed therebetween. A touch panel for laminating a film and the second optical film.
  7. 유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 상면에 형성되고 미세 패턴의 메쉬 구조로 형성되며 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 상기 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 금속층으로 형성하며, 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx); 및A first electrostatic electrode pattern of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes formed on an upper surface of the first optical film made of an organic insulator or an inorganic insulator and formed of a fine pattern mesh structure and sensing a signal input by a touch; A sensing unit (Receive, Rx) connected to an edge of the first electrostatic electrode pattern to form a first wiring electrode pattern representing a bus electrode as a metal layer, and detecting whether a touch is made and a touch position as a change in voltage value; And
    유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 하면에 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 상기 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 투명 도전층으로 형성하며, 구동 전압이 인가되는 구동부(Transfer, Tx)를 포함하며, 접착제층을 사이에 두고 상기 제1 광학필름과 상기 제2 광학필름을 합지하는 터치 패널.A second electrostatic electrode pattern of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes for sensing a signal input by a touch on a lower surface of the second optical film made of an organic insulator or an inorganic insulator, and an edge region of the second electrostatic electrode pattern A second wiring electrode pattern connected to the bus electrode is formed as a transparent conductive layer, and includes a driving unit (Transfer, Tx) to which a driving voltage is applied. The first optical film and the second optical layer have an adhesive layer therebetween. Touch panel to laminate the film.
  8. 제1항, 제4항, 제5항, 제6항 및 제7항 중 어느 한 항에 있어서,The method according to any one of claims 1, 4, 5, 6 and 7,
    상기 투명 도전층으로 이루어진 상기 제1 배선전극 패턴과 상기 제2 배선전극 패턴은 상기 제1 배선전극 패턴의 끝단 부분과 상기 제2 배선전극 패턴의 끝단 부분으로서, 연성 인쇄회로기판(Flexible Printed Circuit Board, FPCB)이 결합되는 연결 전극 영역을 상기 금속층으로 형성하는 터치 패널.The first wiring electrode pattern and the second wiring electrode pattern made of the transparent conductive layer are end portions of the first wiring electrode pattern and end portions of the second wiring electrode pattern, and are flexible printed circuit boards. And forming a connection electrode region to which the FPCB) is coupled as the metal layer.
  9. 유기 절연체 또는 무기 절연체로 이루어진 광학필름의 양면 중 일면에 투명 도전층을 형성하고, 상기 광학필름의 양면 중 타면에 금속층을 형성하는 단계; 및Forming a transparent conductive layer on one surface of both surfaces of an optical film made of an organic insulator or an inorganic insulator, and forming a metal layer on the other surface of both surfaces of the optical film; And
    상기 투명 도전층과 상기 금속층을 선택적으로 제거하여 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 정전전극 패턴과 상기 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 배선전극 패턴을 상기 투명 도전층과 상기 금속층 상에 각각 형성하는 단계Selectively removing the transparent conductive layer and the metal layer to connect a plurality of X-axis electrostatic electrode or Y-axis electrostatic electrode pattern and the edge region of the electrostatic electrode pattern to sense a signal input by a touch to indicate a bus electrode Forming a wiring electrode pattern on the transparent conductive layer and the metal layer, respectively
    를 포함하는 터치 패널의 제조 방법.Method of manufacturing a touch panel comprising a.
  10. 제9항에 있어서,The method of claim 9,
    상기 투명 도전층은 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx)이고, 상기 금속층은 구동 전압이 인가되는 구동부(Transfer, Tx)인 터치 패널의 제조 방법.The transparent conductive layer is a sensing unit (Receive, Rx) for detecting whether the touch and the touch position as a change in the voltage value, the metal layer is a touch panel (Transfer, Tx) to which a driving voltage is applied.
  11. 제9항에 있어서,The method of claim 9,
    상기 금속층은 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx)이고, 상기 투명 도전층은 구동 전압이 인가되는 구동부(Transfer, Tx)인 터치 패널의 제조 방법.The metal layer is a sensing unit (Receive, Rx) for detecting whether the touch and the touch position as a change in the voltage value, the transparent conductive layer is a touch panel (Transfer, Tx) to which a driving voltage is applied.
  12. 유기 절연체 또는 무기 절연체로 이루어진 제1 광학필름의 일면에 투명 도전층을 형성하는 단계;Forming a transparent conductive layer on one surface of the first optical film made of an organic insulator or an inorganic insulator;
    상기 투명 도전층을 선택적으로 제거하여 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제1 정전전극 패턴과 상기 제1 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제1 배선전극 패턴을 형성하는 제1 패드를 준비하는 단계;The bus electrode may be connected to a first electrostatic electrode pattern of a plurality of X-axis electrostatic electrodes or Y-axis electrostatic electrodes and the edge region of the first electrostatic electrode pattern to selectively detect a signal input by a touch by selectively removing the transparent conductive layer. Preparing a first pad to form a first wiring electrode pattern;
    유기 절연체 또는 무기 절연체로 이루어진 제2 광학필름의 일면에 금속층을 형성하는 단계;Forming a metal layer on one surface of the second optical film made of an organic insulator or an inorganic insulator;
    상기 금속층을 선택적으로 제거하여 상기 제2 광학필름의 일면에 미세 패턴의 메쉬 구조로 형성되고 터치에 의한 신호 입력을 감지하는 복수개의 X축 정전전극 또는 Y축 정전전극의 제2 정전전극 패턴과 상기 제2 정전전극 패턴의 가장자리 영역과 연결되어 버스 전극을 나타내는 제2 배선전극 패턴을 형성하는 제2 패드를 준비하는 단계; 및The second electrostatic electrode pattern of the plurality of X-axis electrostatic electrode or Y-axis electrostatic electrode which is formed of a fine pattern mesh structure on one surface of the second optical film to detect the signal input by the touch by selectively removing the metal layer and the Preparing a second pad connected to an edge region of the second electrostatic electrode pattern to form a second wiring electrode pattern representing the bus electrode; And
    접착제층을 사이에 두고 상기 제1 패드와 상기 제2 패드를 합지하는 단계Laminating the first pad and the second pad with an adhesive layer therebetween
    를 포함하는 터치 패널의 제조 방법.Method of manufacturing a touch panel comprising a.
  13. 제12항에 있어서,The method of claim 12,
    상기 접착제층을 사이에 두고 상기 제1 패드와 상기 제2 패드를 합지하는 단계는,The step of laminating the first pad and the second pad with the adhesive layer therebetween,
    상기 제1 패드의 투명 도전층을 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx)로 하고, 상기 제2 패드의 금속층을 구동 전압이 인가되는 구동부(Transfer, Tx)로 하여 상기 접착제층을 사이에 두고 상기 제1 패드의 제1 광학필름과 상기 제2 패드의 금속층을 합지하는 단계를 포함하는 터치 패널의 제조 방법.A sensing unit (Receive, Rx) that detects whether the touch of the transparent conductive layer of the first pad and the touch position as a change in voltage value, and the driving unit (Transfer, Tx) to which the driving voltage is applied to the metal layer of the second pad And laminating the first optical film of the first pad and the metal layer of the second pad with the adhesive layer interposed therebetween.
  14. 제12항에 있어서,The method of claim 12,
    상기 접착제층을 사이에 두고 상기 제1 패드와 상기 제2 패드를 합지하는 단계는,The step of laminating the first pad and the second pad with the adhesive layer therebetween,
    상기 제2 패드의 금속층을 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx)로 하고, 상기 제1 패드의 투명 도전층을 구동 전압이 인가되는 구동부(Transfer, Tx)로 하여 상기 접착제층을 사이에 두고 상기 제2 패드의 제2 광학필름과 상기 제1 패드의 투명 도전층을 합지하는 단계를 포함하는 터치 패널의 제조 방법.The sensing unit (Receive, Rx) for sensing whether the metal layer of the second pad and the touch position as a change in the voltage value, and the driving unit (Transfer, Tx) to which the driving voltage is applied to the transparent conductive layer of the first pad And laminating the second optical film of the second pad and the transparent conductive layer of the first pad with the adhesive layer interposed therebetween.
  15. 제12항에 있어서,The method of claim 12,
    상기 접착제층을 사이에 두고 상기 제1 패드와 상기 제2 패드를 합지하는 단계는,The step of laminating the first pad and the second pad with the adhesive layer therebetween,
    상기 제1 패드의 투명 도전층을 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx)로 하고, 상기 제2 패드의 금속층을 구동 전압이 인가되는 구동부(Transfer, Tx)로 하여 상기 접착제층을 사이에 두고 상기 제1 패드의 제1 광학필름과 상기 제2 패드의 제2 광학필름을 합지하는 단계를 포함하는 터치 패널의 제조 방법.A sensing unit (Receive, Rx) that detects whether the touch of the transparent conductive layer of the first pad and the touch position as a change in voltage value, and the driving unit (Transfer, Tx) to which the driving voltage is applied to the metal layer of the second pad And laminating the first optical film of the first pad and the second optical film of the second pad with the adhesive layer interposed therebetween.
  16. 제12항에 있어서,The method of claim 12,
    상기 접착제층을 사이에 두고 상기 제1 패드와 상기 제2 패드를 합지하는 단계는,The step of laminating the first pad and the second pad with the adhesive layer therebetween,
    상기 제2 패드의 금속층을 터치 여부 및 터치 위치를 전압값의 변화로 감지하는 센싱부(Receive, Rx)로 하고, 상기 제1 패드의 투명 도전층을 구동 전압이 인가되는 구동부(Transfer, Tx)로 하여 상기 접착제층을 사이에 두고 상기 제2 패드의 제2 광학필름과 상기 제1 패드의 제1 광학필름을 합지하는 단계를 포함하는 터치 패널의 제조 방법.The sensing unit (Receive, Rx) for sensing whether the metal layer of the second pad and the touch position as a change in the voltage value, and the driving unit (Transfer, Tx) to which the driving voltage is applied to the transparent conductive layer of the first pad And laminating the second optical film of the second pad and the first optical film of the first pad with the adhesive layer interposed therebetween.
  17. 제9항에 있어서,The method of claim 9,
    상기 투명 도전층과 상기 금속층 상에 각각 형성하는 단계는,Forming each of the transparent conductive layer and the metal layer,
    포토리소그래피(Photolithography)의 공정에 의해 상기 투명 도전층과 상기 금속층을 동시에 제거하는 단계Simultaneously removing the transparent conductive layer and the metal layer by a process of photolithography
    를 포함하는 터치 패널의 제조 방법.Method of manufacturing a touch panel comprising a.
  18. 제9항 또는 제12항에 있어서,The method of claim 9 or 12,
    상기 투명 도전층을 포토리소그래피(Photolithography)의 공정에 의해 선택적으로 제거하고, 금속층을 임프린트, 그라비아 옵셋, 리버스 옵셋, 잉크젯 프린터, 실버할라이드 소재의 포토리소그래피 중 하나의 공정으로 선택적으로 제거하는 단계Selectively removing the transparent conductive layer by a photolithography process and selectively removing the metal layer by one of imprint, gravure offset, reverse offset, inkjet printer, and photolithography of silver halide material.
    를 포함하는 터치 패널의 제조 방법.Method of manufacturing a touch panel comprising a.
PCT/KR2014/005407 2013-07-05 2014-06-19 Touch panel and manufacturing method therefor WO2015002394A1 (en)

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