WO2015023063A1 - Procédé de fabrication d'un panneau d'écran tactile souple - Google Patents

Procédé de fabrication d'un panneau d'écran tactile souple Download PDF

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Publication number
WO2015023063A1
WO2015023063A1 PCT/KR2014/006350 KR2014006350W WO2015023063A1 WO 2015023063 A1 WO2015023063 A1 WO 2015023063A1 KR 2014006350 W KR2014006350 W KR 2014006350W WO 2015023063 A1 WO2015023063 A1 WO 2015023063A1
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WO
WIPO (PCT)
Prior art keywords
base film
touch screen
screen panel
flexible touch
gas permeable
Prior art date
Application number
PCT/KR2014/006350
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English (en)
Korean (ko)
Inventor
이동학
권혁환
맹창준
배우현
Original Assignee
동우화인켐 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 동우화인켐 주식회사 filed Critical 동우화인켐 주식회사
Priority to JP2016533232A priority Critical patent/JP2016531358A/ja
Priority to CN201480044430.1A priority patent/CN105474139A/zh
Publication of WO2015023063A1 publication Critical patent/WO2015023063A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • 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
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present invention relates to a method of manufacturing a flexible touch screen panel.
  • the touch screen panel is an input device for inputting a user's command by selecting instructions displayed on a screen such as an image display device with a human hand or an object.
  • the touch screen panel is provided on the front face of the image display device to convert a contact position in direct contact with a human hand or an object into an electrical signal. Accordingly, the instruction content selected at the contact position is received as an input signal.
  • Such a touch screen panel may be replaced with a separate input device that is connected to an image display device such as a keyboard and a mouse, and thus its use range is gradually expanding.
  • a resistive film method As a method of implementing a touch screen panel, a resistive film method, a light sensing method, and a capacitive method are known.
  • a conductive sensing pattern is applied when a human hand or an object is touched.
  • the contact position is converted into an electrical signal.
  • Such a touch screen panel is generally attached to the outer surface of a flat panel display such as a liquid crystal display and an organic light emitting display, and commercialized. Therefore, the touch screen panel requires high transparency and thin thickness.
  • a flexible flat panel display has been developed.
  • a touch screen panel attached to the flexible flat panel display is also required to have a flexible characteristic.
  • the capacitive touch screen panel requires thin film formation, a pattern forming process, and the like to form a sensing pattern for implementing a touch sensor, and thus requires characteristics such as high heat resistance and chemical resistance.
  • a transparent electrode laminated body is formed on the base film formed by hardening resin, such as polyimide excellent in heat resistance.
  • such a thin and flexible base film has a problem that it is difficult to form a transparent electrode laminate due to the difficulty in handling during the manufacturing process because it can be easily bent or twisted, an alternative to this problem has not yet been established.
  • Korean Patent Publication No. 2012-133848 discloses a flexible touch screen panel, but has not suggested an alternative to the problem.
  • Patent Document 1 Korean Patent Publication No. 2012-133848
  • An object of the present invention is to provide a method for manufacturing a flexible touch screen panel that allows the transparent electrode laminate formation process to proceed more precisely and stably.
  • An object of this invention is to provide the manufacturing method of the flexible touch screen panel which can suppress the fall of the smoothness of the base film by the volatile component or vaporized solvent component in an adhesive.
  • the gas permeable base film is polyethylene ether phthalate (polyethyleneetherphthalate), polyethylenenaphthalate (polyethylenenaphthalate), polycarbonate (polycarbonate), polyarylate (polyarylate), polyetherimide (polyetherimide), polyethersulfonic acid (polyethersulfonate), polyimide, polyetheretherketone, polyethylene terephthalate, triacetyl cellulose, cyclo-olefin polymer, aramid, f Method of manufacturing a flexible touch screen panel, which is formed of at least one material selected from the group consisting of AlRP (FRP), polyurethane (polyurethane) and polyacrylate (polyacrylate).
  • FRP AlRP
  • polyurethane polyurethane
  • polyacrylate polyacrylate
  • the chemical resistance coating layer is a composition for forming a chemical-resistant coating layer comprising a reactive alkoxysilane compound, an acrylic compound, a fluorine compound, silicon dioxide and silicon nitride (SiN x ) having an alkoxy group having 1 to 20 carbon atoms
  • a method of manufacturing a flexible touch screen panel formed by coating on a gas permeable base film
  • Flexible touch screen panel manufactured by the method of any one of 1 to 10 above.
  • Flexible image display device including the flexible touch screen panel of 11 above.
  • the present invention allows the transparent electrode laminate formation process to proceed more precisely and stably by bonding the substrate film to the support to perform a subsequent process.
  • This invention can suppress the fall of the smoothness of the base film by the volatile component and the vaporized solvent component in an adhesive.
  • FIG. 1 schematically illustrates a process flow diagram according to an embodiment of a method of manufacturing a flexible touch screen panel of the present invention.
  • the present invention comprises the steps of bonding the gas permeable substrate film on the support via an adhesive layer; Heat-treating the adhesive layer to discharge the solvent component or the volatile component in the adhesive through the gas permeable base film; And forming a transparent electrode laminate on the gas permeable substrate film, thereby allowing the transparent electrode laminate formation process to proceed more precisely and stably, and using a substrate based on a volatile component and a vaporized solvent component in the adhesive.
  • the manufacturing method of the flexible touch screen panel which can suppress the problem of the smoothness fall of a film.
  • Touch screen panels are becoming increasingly thin in order to reduce weight and improve portability.
  • Substrate films used in such touch screen panels can be easily bent or distorted, which can be difficult to handle during the manufacturing process.
  • the production method of the present invention improves handling by adhering and fixing the base film to the support, so that the subsequent process of forming the transparent electrode laminate can be performed more precisely and stably.
  • the solvent component of the pressure-sensitive adhesive layer constituting the adhesive layer may be vaporized by a high temperature process such as a deposition process, a heat treatment process for forming a transparent electrode laminate, in which case bubbles may occur to reduce the smoothness of the base film. .
  • a high temperature process such as a deposition process, a heat treatment process for forming a transparent electrode laminate, in which case bubbles may occur to reduce the smoothness of the base film.
  • This problem may also be caused by volatile components in the adhesive.
  • the present invention can solve the above problem by discharging the solvent component or the volatile component in the pressure-sensitive adhesive before the subsequent high temperature process.
  • FIG. 1 is a process flowchart of an embodiment of a method of manufacturing a flexible touch screen panel of the present invention is schematically shown, in detail step by step an embodiment of a method of manufacturing a flexible touch screen panel of the present invention with reference to the drawings Let's explain.
  • the gas permeable base film 30 is bonded onto the support 10 through the adhesive layer 20.
  • the support 10 may be used without particular limitation as long as it provides a suitable strength so that the base film can be fixed without being easily bent or twisted during the process and has little influence on heat or chemical treatment.
  • glass, quartz, Si wafers, sus etc. may be used, preferably glass may be used.
  • the gas-permeable base film 30 is a substrate on which a transparent electrode to be described later is formed, and the present invention fixes the base film 30 to one surface of the support 10 having appropriate strength to form a transparent electrode on the base film. Make sure the process goes smoothly.
  • the gas permeable base film 30 may be provided to the process in the form of a film sheet or roll to roll, but is not limited thereto.
  • the gas-permeable base film 30 may be provided to the process with a protective film (not shown) attached to at least one surface. In such a case, when bonding to the support 10, the protective film (not shown) is removed and bonded.
  • the gas permeable base film 30 is excellent in heat resistance to withstand high temperature processes such as a heat treatment process and a transparent electrode laminate forming process, which will be described later, and has gas permeability so that the volatile component and the vaporized solvent component in the adhesive can permeate.
  • It is not specifically limited, For example, polyethylene ether phthalate, polyethylenenaphthalate, polycarbonate, polyarylate, polyetherimide, polyethersulfonate ), Polyimide, polyetheretherketone, polyethylene terephthalate, triacetyl cellulose, cyclo-olefin polymer, aramid, and arp FRP), polyurethane, polyacrylate acrylate) or the like. These can be used individually or in mixture of 2 or more types.
  • the thickness of the gas permeable base film 30 is not particularly limited, and may be, for example, 1 to 150 ⁇ m.
  • the water vapor transmission rate of the gas permeable base film 30 is not particularly limited as long as the volatile component in the pressure sensitive adhesive or the solvent component vaporized according to the process described later can pass therethrough and have sufficient durability. not, for example, from 1 to 500g / m 2 / 24hr. When the water vapor transmission coefficient is within the above range, the solvent component in the volatile component or the vaporized pressure sensitive adhesive can penetrate it, and the base film may have sufficient heat resistance and durability.
  • the adhesive layer 20 may be formed by coating the adhesive composition on one surface of the support 10 or the gas-permeable base film 30.
  • a method of coating the pressure-sensitive adhesive composition a method commonly used in the art may be applied without limitation.
  • a method of pouring, spin coating, spray coating, dip coating, dropping, roll coating, gravure coating, and the like may be applied, but is not limited thereto.
  • the adhesive layer 20 may be provided to the process by a pressure-sensitive adhesive sheet or a roll to roll method in which the release film 40 is attached to both surfaces.
  • the pressure-sensitive adhesive composition preferably has a high melting temperature (Tm), for example, may be 150 to 400 ° C, and preferably 200 to 350 ° C.
  • Tm melting temperature
  • the melting temperature of the pressure-sensitive adhesive composition is 150 to 400 °C can be minimized vaporization of the solvent component.
  • the formed pressure-sensitive adhesive layer may be melted in a high temperature process to be described later to form a transparent electrode laminate.
  • the pressure-sensitive adhesive composition according to the present invention is not particularly limited as long as it satisfies the above conditions, and may be a pressure-sensitive adhesive composition including polyacrylic acid resins, polyurethane resins, polyester resins, epoxy resins, siloxane resins, and the like commonly used in the art. have.
  • the pressure-sensitive adhesive layer 20 is heat-treated to discharge the solvent component or the volatile component in the pressure sensitive adhesive through the gas permeable base film.
  • the solvent component of the pressure-sensitive adhesive constituting the adhesive layer 20 may be vaporized by a high temperature process such as a deposition process and a heat treatment process for forming a transparent electrode laminate, which will be described later. In such a case, bubbles are generated to reduce the smoothness of the base film. Can be. In addition, the above problems may also occur due to volatile components in the pressure-sensitive adhesive.
  • the manufacturing method of the flexible touch screen panel of the present invention can solve the above problems by discharging the solvent component or the volatile component in advance before forming the transparent electrode laminate.
  • the volatile component or vaporized solvent component penetrates the gas permeable base film 30 and is discharged into the air.
  • the heat treatment temperature and time is not particularly limited and may be appropriately selected within a range that does not damage the support 10 and the base film 30 while the solvent component in the pressure sensitive adhesive can be sufficiently vaporized, for example, It may be carried out at a temperature below the melting temperature, specifically 1 to 400 minutes at a temperature lower than the melting temperature 20 °C.
  • the heat treatment step may be performed directly at a high temperature, may be performed step by step, or varying the temperature so that the solvent component in the pressure-sensitive adhesive can supply the heat energy necessary to sufficiently vaporize.
  • the elevated temperature, the execution time of each step, and the like may be appropriately selected.
  • the present invention may further include forming a chemical resistant coating layer (not shown) on the gas permeable base film 30 before performing the heat treatment and forming the transparent electrode laminate.
  • the gas permeable base film 30 is exposed to a plurality of chemical liquids during the subsequent process, and damage to the chemical liquid can be suppressed by forming a chemical resistant coating layer.
  • Chemical resistant coating layer is the gas-permeable substrate film 30 by a method such as pouring, spin coating, spray coating, dip coating, dropping, roll coating, gravure coating, etc.
  • the chemical resistant layer may be formed by coating on or directly deposited on the chemical layer by chemical vapor deposition, physical vapor deposition, sputtering, etc., but is not limited thereto.
  • the composition for forming a chemical-resistant coating layer is an organic material composed of a reactive alkoxysilane compound having an alkoxy group having 1 to 20 carbon atoms, an acrylic compound, a fluorine compound, or the like; Inorganic material consisting of silicon dioxide (SiO 2 ), silicon nitride (SiNx), or the like; It may include an organic-inorganic hybrid, but is not limited thereto.
  • the transparent electrode laminate 50 is formed on the gas permeable base film.
  • the method of forming the transparent electrode stack 50 may use any method known in the art without limitation.
  • the transparent electrode stack 50 may be formed in various structures according to a specific use, and may include, for example, a first transparent electrode layer and a second transparent electrode layer, and the first transparent electrode layer and the second transparent electrode layer providing position information of a touched point.
  • An insulating layer interposed between the transparent electrode layers to electrically separate the two layers, and a contact hole formed in the insulating layer to electrically connect the first transparent electrode layer and the second transparent electrode layer may be included.
  • the method of manufacturing the flexible touch screen panel of the present invention may further include peeling the gas-permeable base film 30 on which the transparent electrode laminate 50 is formed from the adhesive layer 20 after the above step.
  • the peeling process is performed by irradiating a laser to the adhesive layer 20, or a non-laser process, for example, a process of separating the gas-permeable base film 30 and the support 10 from the jig by physical force, or by air. It may be carried out by a process by the input or a process by UV irradiation by the temperature change. Preferably a non-laser process can be used.
  • the gas-permeable base film 30 on which the transparent electrode laminate 50 is formed may be combined with the display panel unit to be used as a touch screen panel.
  • the present invention provides an image display device including the flexible touch screen panel.
  • the image display apparatus of the present invention may further include a configuration conventionally used for the flexible image display apparatus.
  • the pressure-sensitive adhesive composition was applied on a PET release film and dried at 120 ° C. for 20 minutes to prepare a pressure-sensitive adhesive sheet.
  • the pressure-sensitive adhesive composition was applied on a PET release film and dried at 100 ° C. for 20 minutes to prepare a pressure-sensitive adhesive sheet.
  • a pressure-sensitive adhesive layer was formed by attaching the pressure-sensitive adhesive sheet of Preparation Example (1) on a liquid crystal display glass (EAGLE XG, Samsung Corning Precision Materials Co., Ltd.) having a thickness of 500 ⁇ m, and a gas-permeable base film sheet having a thickness of 25 ⁇ m on the pressure-sensitive adhesive layer. (Kapton Type HN Film, DuPont) was attached to the gas permeable base film.
  • the conjugate was heat-treated in a 150 ° C. hot air drying oven for 60 minutes to discharge volatile components and vaporized solvent components from the pressure-sensitive adhesive.
  • composition for forming a chemical resistant coating layer including a reactive ethoxysilane compound was coated on the gas permeable base film to form a chemical resistant coating layer.
  • ITO was formed into a film by 500 micrometers on the base film with a chemical-resistant coating layer by sputtering method, and the transparent electrode laminated body was formed.
  • the gas-permeable base film on which the transparent electrode laminate was formed was pulled at a speed of 30 m / min in the 180 degree direction and peeled from the adhesion layer.
  • a gas permeable base film sheet (SUMILITE FS-1300, Sumitomo Bakelite Co., Ltd.) having a thickness of 100 ⁇ m was used in the same manner as in Example 1.
  • Example 2 The same method as in Example 1 was carried out except that a gas-permeable base film sheet (ZEONOR 1020R, Xeon Co., Ltd.) having a thickness of 250 ⁇ m was used.
  • a gas-permeable base film sheet (ZEONOR 1020R, Xeon Co., Ltd.) having a thickness of 250 ⁇ m was used.
  • a gas permeable base film sheet (Estane 58237 TPU, Lubrizol) having a thickness of 500 ⁇ m was used in the same manner as in Example 1.
  • Example 1 The same process as in Example 1 was conducted except that no chemical resistant coating layer was formed.
  • Example 2 It carried out in the same manner as in Example 1 except that a gas-impermeable base film (moisture Barrier Films FG100, Matterion) was used instead of the gas-permeable base film.
  • a gas-impermeable base film moisture Barrier Films FG100, Matterion
  • the water vapor transmission coefficient of the base film used in the Example and the comparative example was measured based on ASTM E96-95-Procedure BW.
  • the transparent electrode laminates of Examples and Comparative Examples were visually observed for uniform film formation, the in-plane uniformity of sheet resistance was measured, and smoothness was evaluated according to the following criteria.
  • Double-circle It is formed into a film uniformly, and the change rate of sheet resistance is less than 10%.
  • the laminated body of the Example and the comparative example was immersed in 20 degreeC propylene glycol monomethyl ether acetate (PGMEA) and 5% potassium hydroxide (KOH) aqueous solution, respectively for 10 minutes. After 10 minutes, it was taken out, washed with deionized water and dried at room temperature for 5 minutes.
  • PGMEA propylene glycol monomethyl ether acetate
  • KOH potassium hydroxide
  • Example 4 having a low water vapor transmission coefficient
  • Example 5 having a high water vapor transmission coefficient of the base film
  • the smoothness was slightly reduced, but still showed excellent performance.
  • Example 6 The laminate of Example 6, which did not form a chemically resistant coating layer, was slightly degraded in chemical resistance but was still excellent and exhibited very good smoothness.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un panneau d'écran tactile souple, et plus particulièrement, un procédé de fabrication d'un panneau d'écran tactile souple, qui consiste: lier un film de base perméable au gaz sur un corps de support à travers une couche adhésive; à décharger un constituant solvant ou un constituant volatil d'un adhésif à travers le film de base perméable au gaz, par thermotraitement de la couche adhésive; et à former un empilement d'électrodes transparent sur le film de base perméable au gaz. On peut ainsi former de manière plus précise et plus stable un empilement d'électrodes transparent et régler un problème qui fait que l'aspect lissé d'un film de base soit dégradé par un constituant volatil et un constituant solvant gazéifié d'un adhésif.
PCT/KR2014/006350 2013-08-12 2014-07-15 Procédé de fabrication d'un panneau d'écran tactile souple WO2015023063A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016533232A JP2016531358A (ja) 2013-08-12 2014-07-15 フレキシブルタッチスクリーンパネルの製造方法
CN201480044430.1A CN105474139A (zh) 2013-08-12 2014-07-15 制作柔性触摸屏面板的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020130095536A KR102064277B1 (ko) 2013-08-12 2013-08-12 플렉서블 터치 스크린 패널의 제조 방법
KR10-2013-0095536 2013-08-12

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WO2015023063A1 true WO2015023063A1 (fr) 2015-02-19

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PCT/KR2014/006350 WO2015023063A1 (fr) 2013-08-12 2014-07-15 Procédé de fabrication d'un panneau d'écran tactile souple

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JP (1) JP2016531358A (fr)
KR (1) KR102064277B1 (fr)
CN (1) CN105474139A (fr)
TW (1) TW201510818A (fr)
WO (1) WO2015023063A1 (fr)

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WO2016144038A1 (fr) * 2015-03-11 2016-09-15 동우화인켐 주식회사 Capteur tactile à film
WO2016153192A1 (fr) * 2015-03-24 2016-09-29 동우화인켐 주식회사 Procédé et appareil de fabrication d'un capteur tactile à film
CN108475143A (zh) * 2016-01-08 2018-08-31 东友精细化工有限公司 薄膜触控传感器及其制作方法
CN108604137A (zh) * 2016-01-08 2018-09-28 东友精细化工有限公司 薄膜触控传感器及其制作方法
JP2019528330A (ja) * 2016-09-09 2019-10-10 エルジー・ケム・リミテッド フォルダブルディスプレイ用粘着剤組成物

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JP6755202B2 (ja) * 2017-02-09 2020-09-16 住友化学株式会社 有機電子デバイスの製造方法
WO2019022185A1 (fr) 2017-07-27 2019-01-31 日産化学株式会社 Composition destinée à la formation d'une couche antiadhésive, et couche antiadhésive
TWI786192B (zh) 2017-09-27 2022-12-11 日商日產化學股份有限公司 暫時接著層形成用組成物及暫時接著層
KR102381831B1 (ko) * 2018-03-30 2022-03-31 동우 화인켐 주식회사 필름 터치 센서용 구조체 및 그 제조방법
CN113365742B (zh) 2019-01-28 2023-04-18 日产化学株式会社 用于狭缝模涂布的剥离层形成用组合物和剥离层
KR20220120621A (ko) 2019-12-25 2022-08-30 닛산 가가쿠 가부시키가이샤 박리층 형성용 조성물 및 박리층
KR20220130178A (ko) 2020-01-21 2022-09-26 닛산 가가쿠 가부시키가이샤 알칼리 유리용 박리층 형성용 조성물 및 박리층
KR20230154052A (ko) 2021-03-03 2023-11-07 닛산 가가쿠 가부시키가이샤 박리층 형성용 조성물 및 박리층
JPWO2022210640A1 (fr) 2021-03-30 2022-10-06

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WO2016144038A1 (fr) * 2015-03-11 2016-09-15 동우화인켐 주식회사 Capteur tactile à film
WO2016153192A1 (fr) * 2015-03-24 2016-09-29 동우화인켐 주식회사 Procédé et appareil de fabrication d'un capteur tactile à film
KR20160114317A (ko) * 2015-03-24 2016-10-05 동우 화인켐 주식회사 필름 터치 센서 제조 방법 및 제조 장치
JP2018509718A (ja) * 2015-03-24 2018-04-05 東友ファインケム株式会社Ｄｏｎｇｗｏｏ Ｆｉｎｅ−Ｃｈｅｍ Ｃｏ．， Ｌｔｄ． フィルムタッチセンサの製造方法および製造装置
CN108475143A (zh) * 2016-01-08 2018-08-31 东友精细化工有限公司 薄膜触控传感器及其制作方法
CN108604137A (zh) * 2016-01-08 2018-09-28 东友精细化工有限公司 薄膜触控传感器及其制作方法
US10870260B2 (en) 2016-01-08 2020-12-22 Dongwoo Fine-Chem Co., Ltd. Film touch sensor and method for fabricating the same
US10894390B2 (en) 2016-01-08 2021-01-19 Dongwoo Fine-Chem Co., Ltd. Film touch sensor and method for fabricating the same
CN108475143B (zh) * 2016-01-08 2021-04-13 东友精细化工有限公司 薄膜触控传感器及其制作方法
JP2019528330A (ja) * 2016-09-09 2019-10-10 エルジー・ケム・リミテッド フォルダブルディスプレイ用粘着剤組成物

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TW201510818A (zh) 2015-03-16
KR20150020363A (ko) 2015-02-26
JP2016531358A (ja) 2016-10-06
KR102064277B1 (ko) 2020-01-13

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