WO2011115403A2 - Ensemble tactile et son procédé de fabrication - Google Patents

Ensemble tactile et son procédé de fabrication Download PDF

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Publication number
WO2011115403A2
WO2011115403A2 PCT/KR2011/001784 KR2011001784W WO2011115403A2 WO 2011115403 A2 WO2011115403 A2 WO 2011115403A2 KR 2011001784 W KR2011001784 W KR 2011001784W WO 2011115403 A2 WO2011115403 A2 WO 2011115403A2
Authority
WO
WIPO (PCT)
Prior art keywords
mold
layer
electrode
touch sensor
film member
Prior art date
Application number
PCT/KR2011/001784
Other languages
English (en)
Korean (ko)
Other versions
WO2011115403A3 (fr
Inventor
박도형
유지영
이동면
Original Assignee
(주)탑나노시스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)탑나노시스 filed Critical (주)탑나노시스
Publication of WO2011115403A2 publication Critical patent/WO2011115403A2/fr
Publication of WO2011115403A3 publication Critical patent/WO2011115403A3/fr

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Classifications

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

Definitions

  • the present invention relates to a touch sensor assembly and a method of manufacturing the same that are mounted on an electronic device and can input a command in a touch sensing manner.
  • touch sensors are equipped with touch sensors.
  • the touch sensor is disposed on a keypad on which a button is printed or on a display panel, so that a command can be input through contact of a finger or touch contact means.
  • a resistive film type and a capacitive type are used for the touch sensor.
  • the resistive touch sensor is provided with conductive layers spaced apart from each other so that when the pressure is applied from the outside, the conductive layers are in contact with each other to change the resistance value.
  • the capacitive touch sensor detects touch based on electromotive force of the human body, and detects a change in capacitance generated when the human body touches to detect the presence or absence of a contact.
  • FIG. 1 is an exploded cross-sectional view showing an example of a conventional touch sensor assembly. 1, the structure and manufacturing process of a conventional capacitive touch sensor will be described.
  • the adhesive layer 3 is attached to the bottom surface of the base member 1 that is an injection molded product.
  • the film member 4 is attached to the bottom surface of the adhesive layer 3.
  • the electrode member 5 is formed on the surface of the film member 4.
  • the base member 1 is a part exposed to the outside. At this time, when the base member is made of a transparent injection molding, a separate printed layer 2 is formed on the bottom of the base member 1.
  • the printed layer 2 is formed with a pattern such as a keypad.
  • the base member 1 is composed of a thickness of less than 3mm
  • the printing layer 2 is formed in the range of several tens of micro
  • the adhesive layer 3 and the film member (4) is made of 0.2mm or more, as a whole film form do.
  • the conventional touch sensor assembly as described above has a disadvantage in that a base member is manufactured by injection molding, a printed layer is formed, and then an adhesive layer is formed on the bottom thereof to attach a parm member.
  • the touch is made on the upper surface of the base member. Therefore, even when the thickness of the base member is less than 3mm, it is difficult to increase the sensing sensitivity as the printing layer 2 and the adhesive layer 3 is interposed between the base member 1 and the electrode member 5 There was this.
  • the present invention has been made in view of the above problems, the object of the touch sensor by forming an electrode layer integrally to the base member in the process of injection molding the base member, it is possible to quickly and easily produce a touch sensor assembly It is to provide a method of manufacturing the assembly.
  • Another object of the present invention to provide a touch sensor assembly that can improve the sensing sensitivity as the electrode layer is formed on the touch surface.
  • Touch sensor assembly manufacturing method for achieving the above object, first goes through the step of preparing an electrode film member.
  • the step is performed by forming a coating layer on one surface of the temporary film and forming an electrode layer on the coating layer.
  • the injection molding of the base member is integrally formed on a side surface of the electrode layer of the electrode film member.
  • the temporary film is removed from the electrode film member.
  • the injection molding is performed in an in-mold injection molding method.
  • the electrode layer may be formed on the surface of the coating layer with a predetermined gap, and the LED element may be inserted into the gap to emit light when a signal is generated.
  • the touch sensor assembly may be integrally manufactured at the same time as the base member is formed in the process, the number of processes may be reduced and the thickness of the assembly may be reduced.
  • FIG. 1 is an exploded cross-sectional view showing an example of a conventional touch sensor assembly.
  • FIG. 2 is a cross-sectional view illustrating a manufacturing process of a touch sensor assembly according to the present invention.
  • FIG. 3 is a sectional view showing the principal parts of another embodiment of the present invention.
  • 4 to 7 are schematic views illustrating an in-mold injection molding process in the manufacturing process of the touch sensor assembly of FIG.
  • FIG. 2 is a schematic view showing a manufacturing process of a touch sensor assembly according to the present invention.
  • the coating layer 12 is formed on one surface of the temporary film 11, and the electrode film member 10 is formed by forming the electrode layer 13 on the coating layer 12.
  • the temporary film 11 is preferably made of a polymer film such as PET film.
  • the coating layer 12 is preferably made of a temporary film and a material that can be easily separated under specific conditions.
  • the coating layer 12 may be made by UV coating.
  • the electrode layer 13 detects a change in capacitance caused by external contact.
  • the electrode layer 13 may be formed by patterning carbon nanotubes.
  • the carbon nanotube (CNT) is a nanomaterial in which a plate-like graphite sheet having carbon atoms bonded in a hexagonal honeycomb pattern is rolled in a tube shape having a diameter of several nm to several hundred nm.
  • the CNT When the CNT is formed of a thin conductive film on a plastic or film, the CNTs exhibit high transmittance and conductivity in the visible light region, and thus may be used as transparent electrodes.
  • the electrode layer made of carbon nanotubes has excellent flexibility and durability than an electrode layer made of ITO. Accordingly, even if the electrode film member 10 is bent under pressure and heat in the process of being integrally formed with the three-dimensional surface of the injection molding, the electrical properties such as the sheet resistance of the electrode film member 10 are hardly changed. Thermal deformation does not occur in the film member 10. In addition, the electrode film member 10 may be deformed into a specific shape according to the manufacturer's design without cracking the electrode layer.
  • the touch sensor assembly according to the present invention is applicable to various curved surfaces. That is, the touch sensor may be manufactured to be bent along the top and side surfaces of the portable terminal. This can be easily formed by adjusting the touch sensor position during in-mold injection.
  • the electrode layer is formed using CNTs, it is not economical to use expensive equipment such as vacuum deposition and chemical etching.
  • the vacuum deposition process and the chemical etching process do not have to be performed, the manufacturing process may be simplified and the manufacturing cost may be reduced.
  • the light emitting device 40 may be connected to the electrode layer 13 as shown in FIG. 3.
  • the light emitting device is any kind of light emitting device capable of emitting light such as LED (Light Emitting Diode), laser diode (Lasar Diode), OLED (Organic Light Emitting Diodes), LCD (Liquid Crystal Device), FED (Field Emission Device) Can be applied.
  • the light emitting device 40 may be attached to the electrode layer by a conductive adhesive.
  • the light emitting device emits light when a part of the user's body contacts the electrode film member 10. The user can see that the electrode film member 10 has detected their contact by looking at the emitted light. That is, since the electrode film member 10 is provided with a light emitting element, a separate contact notification module for generating vibration to notify the user that the touch is recognized is installed in the touch sensor assembly or the electronic device in which the touch sensor assembly is installed. You do not have to do.
  • the method may further include forming the printing layer 20 on the side surface of the electrode layer 13 of the electrode film member 10.
  • the printed layer represents a numeric button, a character button and the like.
  • the print layer 20 may be formed through screen coating or gravure coating on the electrode layer 13.
  • the base member 30 is integrally injection molded on the side surface on which the print layer is formed.
  • the temporary film 11 is removed from the surface of the electrode film member 10 to form a touch surface. do.
  • the second step process is implemented by the in-mold (IMD) injection molding method, the in-mold injection molding method, the electrode film member is put on the part line (P / L) surface of the mold to the electrode film member Refers to the molding method for molding the injection molding.
  • the electrode film member 10 is formed by coating the coating layer 12 and the electrode layer 13 on one surface of the temporary film 11.
  • the printed layer 20 may be printed on the upper surface of the electrode layer 13.
  • the clamper 120 operates to fix the position of the electrode film member 10, and 2 the electrode.
  • the film member 10 is vacuum-adsorbed and brought into close contact with the other mold 102.
  • one side of the mold 101 and the other side of the mold 102 are closed, and the injection molded material L in the molten state is injected into the printed layer 20 of the electrode film member 10 (see FIG. 2).
  • the base member 30 is integrally formed on the side surface on which is formed. In this case, the printed layer may be transferred to the base member 30 by heat.
  • the temporary film is easily separated from the rest by the coating layer.
  • the electrode layer 13 is formed on the surface of the coating layer 12 with a predetermined gap in the process of FIG. 4, and an LED element (not shown) is inserted into the gap to emit light upon signal generation. It can provide a visual effect when touched.
  • the touch sensor assembly of the following structure is made.
  • the touch sensor assembly includes a base member 30, a print layer 20, an electrode layer 13, and a coating layer 12.
  • the electrode layer is formed of a transparent material so that the pattern of the printed layer is easily seen.
  • the base member 30 is formed of an injection molding, and it is not necessary to limit the thickness thereof due to the structural features not present on the touch surface.
  • a printed layer 20 is formed on one side of the base member 30, and the printed layer may have a numeric key and a letter key shape.
  • the transparent electrode layer 13 is disposed on the printed layer, and the coating layer 12 is formed on the transparent electrode layer and exposed to the outside.
  • the touch sensitivity is high and the electric interference problem is caused. It rarely occurs.
  • the sensitivity adjustment range is wide.
  • the electrode line constituting the electrode layer 13 is preferably made of carbon nanotubes.
  • the present invention may further include an LED device.
  • the LED element is disposed to connect between the electrode lines of the transparent electrode layer, the LED element may be formed recessed in the base member. Accordingly, the possibility of damage to the LED element is small and the thickness of the touch sensor assembly is reduced.
  • the coating layer may be made of a UV coating layer.
  • the printing layer, the electrode layer, the UV coating layer, together with the temporary film may be formed by being molded in one electrode film member when the base member is injected. At this time, the temporary film is separated from the UV coating layer and removed. As it will be described in detail above, a detailed description thereof will be omitted.
  • the present invention can be used for a touch sensor that can input a command through a finger touch on a keypad or display panel printed buttons for a large number of electromagnetic devices, such as mobile electronic devices such as mobile phones and laptops, cash machines, etc.

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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)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Position Input By Displaying (AREA)

Abstract

La présente invention a trait à un ensemble tactile monté sur un dispositif électronique afin de permettre aux utilisateurs de saisir des commandes au moyen d'un système tactile, et à un procédé de fabrication de l'ensemble tactile. Le procédé de fabrication de l'ensemble tactile selon un mode de réalisation de la présente invention comprend les étapes suivantes consistant : à former une couche de revêtement sur une surface d'un film temporaire et à former une couche d'électrode sur la couche de revêtement de manière à préparer un élément de film d'électrode ; à procéder à un moulage par injection d'un élément de base formé d'un seul tenant avec la surface de l'élément de film d'électrode, sur laquelle la couche d'électrode est formée ; et à retirer le film temporaire de l'élément de film d'électrode.
PCT/KR2011/001784 2010-03-15 2011-03-15 Ensemble tactile et son procédé de fabrication WO2011115403A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0022937 2010-03-15
KR1020100022937A KR20110103730A (ko) 2010-03-15 2010-03-15 터치센서 조립체 및 그 제조방법

Publications (2)

Publication Number Publication Date
WO2011115403A2 true WO2011115403A2 (fr) 2011-09-22
WO2011115403A3 WO2011115403A3 (fr) 2011-12-29

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PCT/KR2011/001784 WO2011115403A2 (fr) 2010-03-15 2011-03-15 Ensemble tactile et son procédé de fabrication

Country Status (2)

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KR (1) KR20110103730A (fr)
WO (1) WO2011115403A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10054503B2 (en) 2016-03-11 2018-08-21 Microsoft Technology Licensing, Llc Force sensor
US20220143956A1 (en) * 2016-06-28 2022-05-12 Corning Incorporated Laminating thin strengthened glass to curved molded plastic surface for decorative and display cover application
US11919396B2 (en) 2017-09-13 2024-03-05 Corning Incorporated Curved vehicle displays

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101357592B1 (ko) * 2011-09-28 2014-02-04 엘지이노텍 주식회사 터치윈도우
CN103218077B (zh) * 2013-03-30 2016-04-13 南昌欧菲光显示技术有限公司 滤光片模块及包含该滤光片模块的触摸显示屏

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070105157A (ko) * 2006-04-25 2007-10-30 엘지전자 주식회사 이동통신 단말기, 및 이동통신 단말기에서의 애니메이션 툴제공방법
KR20090026073A (ko) * 2007-09-07 2009-03-11 티디케이가부시기가이샤 터치 스위치용 중간체 및 터치 스위치용 중간체 제조 방법
JP2009509813A (ja) * 2005-09-28 2009-03-12 シピックス・イメージング・インコーポレーテッド 機能要素を含む物品のインモールド製造方法
KR100894310B1 (ko) * 2008-09-26 2009-04-24 주식회사 토비스 강화유리를 이용한 터치패널

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009509813A (ja) * 2005-09-28 2009-03-12 シピックス・イメージング・インコーポレーテッド 機能要素を含む物品のインモールド製造方法
KR20070105157A (ko) * 2006-04-25 2007-10-30 엘지전자 주식회사 이동통신 단말기, 및 이동통신 단말기에서의 애니메이션 툴제공방법
KR20090026073A (ko) * 2007-09-07 2009-03-11 티디케이가부시기가이샤 터치 스위치용 중간체 및 터치 스위치용 중간체 제조 방법
KR100894310B1 (ko) * 2008-09-26 2009-04-24 주식회사 토비스 강화유리를 이용한 터치패널

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10054503B2 (en) 2016-03-11 2018-08-21 Microsoft Technology Licensing, Llc Force sensor
US20220143956A1 (en) * 2016-06-28 2022-05-12 Corning Incorporated Laminating thin strengthened glass to curved molded plastic surface for decorative and display cover application
US11613106B2 (en) * 2016-06-28 2023-03-28 Corning Incorporated Laminating thin strengthened glass to curved molded plastic surface for decorative and display cover application
US11919396B2 (en) 2017-09-13 2024-03-05 Corning Incorporated Curved vehicle displays

Also Published As

Publication number Publication date
KR20110103730A (ko) 2011-09-21
WO2011115403A3 (fr) 2011-12-29

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