WO2013100159A1 - Structure de fixation d'écran tactile - Google Patents

Structure de fixation d'écran tactile Download PDF

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Publication number
WO2013100159A1
WO2013100159A1 PCT/JP2012/084250 JP2012084250W WO2013100159A1 WO 2013100159 A1 WO2013100159 A1 WO 2013100159A1 JP 2012084250 W JP2012084250 W JP 2012084250W WO 2013100159 A1 WO2013100159 A1 WO 2013100159A1
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WO
WIPO (PCT)
Prior art keywords
glass substrate
touch panel
synthetic resin
case
mold body
Prior art date
Application number
PCT/JP2012/084250
Other languages
English (en)
Japanese (ja)
Inventor
信也 岩脇
伴明 中山
直人 会田
Original Assignee
Smk株式会社
吉田テクノワークス株式会社
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 Smk株式会社, 吉田テクノワークス株式会社 filed Critical Smk株式会社
Publication of WO2013100159A1 publication Critical patent/WO2013100159A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B29C45/14434—Coating brittle material, e.g. glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14811—Multilayered articles
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3475—Displays, monitors, TV-sets, computer screens

Definitions

  • the present invention relates to a touch panel fixing structure that integrally fixes a glass substrate of a touch panel that supports a transparent sensor electrode to a case.
  • the touch panel is an input device that is attached along the surface of a case of an electronic device such as a mobile phone, detects an input operation to an input operation area set along the surface of the case, and outputs the detected input operation to a host processor.
  • a display device such as a liquid crystal panel arranged in the inside thereof, and an input operation is detected along the surface or back surface of a transparent insulating substrate so that the display of the display device can be seen through the input operation area.
  • a transparent insulating substrate is required to have transparency and a predetermined strength that does not easily bend or break under external force, a chemically strengthened glass substrate whose surface layer is strengthened by ion exchange is used. It has been.
  • FIG. 14 and 15 are an exploded perspective view and a longitudinal sectional view of the touch panel device 100.
  • the touch panel 101 includes a flexible sheet 101b disposed on the glass substrate 101a via a dot spacer.
  • a large number of transparent sensor electrodes are insulated from each other on the opposing surfaces.
  • the transparent sensor electrodes facing each other come into contact with each other at the pressed position, and the input operation and the input operation position are determined based on the arrangement position of the transparent sensor electrode from which an electrical signal is output. Is detected.
  • the touch panel 101 and the display panel 102 are positioned on a rectangular frame-like support frame 103 formed of an elastic material such as urethane, and are divided into two stages, and the flexible sheet of the touch panel 101.
  • a transparent protective sheet 104 is attached to the entire surface of 101b.
  • the outline of the protective sheet 104 is larger than that of the flexible sheet 101 b, and therefore the periphery thereof is located on the protruding edge 103 a formed over the entire upper surface of the support frame 103.
  • the case 105 of the device to which the touch panel 101 is fixed is composed of an upper case 105a and a lower case 105b obtained by dividing the box body into two in the horizontal direction, and the input operation area of the touch panel 101 faces the surface side of the upper case 105a.
  • An opening 106 is formed.
  • the support frame 103 in which the touch panel 101 and the display panel 102 are positioned is disposed so as to overlap further on the circuit board 108 disposed on the chassis 107 integral with the lower case 105b, and between the upper case 105a and the lower case 105b.
  • the support frame 103 made of an elastic material is compressed, the input operation area is faced to the opening 106, and the touch panel 101 is fixed to the case 105.
  • the protective sheet 104 is sandwiched between the protruding edge 103a of the support frame 103 and the inner top surface of the upper case 105a around the opening 106, and the glass substrate 101a
  • the front surface side is covered with the protective sheet 104, and the gap between the case 105 and the touch panel 101 is covered with the protective sheet 104, so that water and dust do not enter the case 105 from the opening 106.
  • the support frame 103 is fixed to the case 105 so that the input operation area of the touch panel 101 faces the opening 106.
  • a process is required.
  • a step is generated between the surface of the case 105 and the surface of the touch panel 101, and the continuity of the input operation to be traced along the surface of the touch panel 101 is impaired, and the design of the appearance of the case 105 is also impaired.
  • the gap between the opening 106 of the case 105 and the touch panel 101 or the protective sheet 104 is not completely blocked, water may enter through the gap in an environment where water pressure is applied, and a complete waterproof function is obtained. I can't.
  • the present invention has been made in consideration of such conventional problems, and when a case is injection-molded, a glass substrate of a touch panel is insert-molded, and a gap is generated between the case and the glass substrate.
  • An object of the present invention is to provide a fixing structure for a touch panel that is integrally molded.
  • the touch panel fixing structure according to claim 1 is a touch panel fixing structure for fixing a glass substrate supporting a transparent sensor electrode along a surface or a back surface along a surface of a synthetic resin case.
  • a synthetic resin film having an end portion that is adhered to the front or back surface of the glass substrate and disposed in the vicinity of the peripheral portion of the glass substrate, and at least a case around the glass substrate that is injection-molded using the synthetic resin as a molding resin
  • a glass substrate to which a synthetic resin film is adhered is insert-molded in the mold body, and the mold body is integrally formed on the periphery of the glass substrate and the end portion of the synthetic resin film. It is characterized by doing.
  • the end of the synthetic resin film is placed near the periphery of the glass substrate into which the molding resin flows, so the molding resin that melts at the end of the synthetic resin film Goes around.
  • the synthetic resin film and the molded resin are the same quality synthetic resin, so they can be easily fused together.
  • the molded body and glass substrate after molding are firmly bonded via the synthetic resin film bonded to the glass substrate. , Integrally molded.
  • the mold body is formed in a frame shape surrounding the periphery of the glass substrate, and is fitted into the window hole of the case cover that forms the surface of the case, and is fixed to the case cover. It is characterized by that.
  • the fixing structure of the touch panel according to claim 3 is characterized in that the mold body is molded from an elastic synthetic resin material, compressed between the glass substrate and the case cover, and attached to the window hole of the case cover.
  • the mold body integrated with the glass substrate is securely attached to the case cover without being easily dropped from the window hole when the mold body is compressed. Further, since the compressed mold body is elastically contacted with the inner wall surface of the window hole, the space between the mold body and the case cover is sealed, and water and dust do not enter the inside from the space.
  • the touch panel fixing structure according to claim 4 is characterized in that the mold body is formed from a synthetic resin having elasticity, and the vibration component is fixed to the back surface of the glass substrate. The vibration of the vibration component is transmitted to the glass substrate, but is absorbed by the elastic mold body and is not transmitted to the case cover.
  • the touch panel fixing structure according to claim 5 is characterized in that when the glass substrate is insert-molded into the mold body, the decorative film is in-mold molded, and the printed layer of the decorative film is transferred to the surface of the mold body. To do. In the molding process of integrally molding the glass substrate and the mold body, the printing layer is simultaneously transferred to the surface of the mold body.
  • the fixing structure of the touch panel according to claim 6 is characterized in that the glass substrate is cut out by chemical etching from a glass original plate having a plurality of glass substrates. Since the glass substrate is cut out from the glass original plate by chemical etching, a glass substrate having a desired outer shape and having no microcracks is produced. Since the cut end surface of the glass substrate cut out by chemical etching is formed with inclined surfaces from the front surface side and the back surface side, the back surface of the end portion of the synthetic resin film slightly protruding from the surface of the glass substrate or the contour of the back surface or The molding resin can easily flow around the inclined surface along the inclined surface, the fusion of the synthetic resin film or the adhesive and the molding resin is promoted, and the mold body and the glass substrate are more reliably integrated.
  • the touch panel fixing structure according to claim 7 is a scattering prevention film that adheres to the surface of the glass substrate and prevents scattering of the glass substrate. Since the anti-scattering film can be formed of a synthetic resin film and is affixed to the surface of the glass substrate, the anti-scattering film can be formed without providing a separate synthetic resin film that assists the integration of the glass substrate and the mold body. Can be substituted.
  • the fixing structure of the touch panel according to claim 8 is characterized in that the synthetic resin film is a sensor film in which sensor electrodes are printed and wired.
  • the sensor film that supports the transparent sensor electrode along the surface or the back surface of the glass substrate can be formed of a synthetic resin film and can be attached to the surface or the back surface of the glass substrate.
  • a sensor film can be substituted without providing a separate synthetic resin film.
  • the touch panel fixing structure according to claim 9 is characterized in that the synthetic resin film is made of polyethylene terephthalate resin, and the molded body is injection-molded using a polycondensation reaction resin by an ester reaction as a molding resin.
  • Polyethylene terephthalate resin is the same as the molding resin of the mold because it is a polymer with an ester bond, and the fusion between the synthetic resin film and the molding resin is promoted, and the molding and the glass substrate are more reliably integrated. It becomes.
  • the touch panel fixing structure according to claim 10 is a touch panel fixing structure for fixing a glass substrate that supports a transparent sensor electrode along a surface or a back surface along a surface of a synthetic resin case, the peripheral portion of the glass substrate.
  • the glass substrate to which the insulating synthetic resin layer is fixed is insert-molded in the mold body, and the mold body is integrally molded around the periphery of the glass substrate.
  • the touch panel fixing structure according to claim 11 is characterized in that the insulating synthetic resin layer is an insulating protective layer covering a sensor electrode formed along the front surface or the back surface of the glass substrate.
  • the insulating protective layer can be formed of an insulating synthetic resin layer and is formed along the front or back surface of the glass substrate so as to cover the sensor electrode. An insulating protective layer can be substituted without providing a separate synthetic resin layer.
  • the glass substrate of the touch panel is integrally formed with the mold body, so that an assembly process for attaching the touch panel to the case is unnecessary.
  • the glass substrate and the mold body around it are integrated without any gaps, there is no unevenness around the touch panel, and a continuous input operation feeling from the input operation area of the touch panel to the surface of the case is obtained.
  • the surface design of the attached case is not impaired.
  • the glass substrate and the surrounding mold body are integrally formed, and the glass substrate of the touch panel and the surrounding case are made seamless so that a complete dustproof and waterproof function can be obtained.
  • the mold body that absorbs the dimensional error of the outer shape of the glass substrate can be used to seal the case cover with the compressed mold body, and a dustproof and waterproof effect can be obtained.
  • the case does not vibrate and only the glass substrate can be vibrated by the vibrating component by utilizing the mold body that absorbs the dimensional error of the outer shape of the glass substrate.
  • the glass substrate can be made into an arbitrary shape including a curved surface by being cut by chemical etching, and the outer shape of the case can be freely designed without being restricted by the rectangular touch panel. Can do.
  • the manufacturing error of a glass substrate can be absorbed with the mold body which can be shape
  • it can serve as a scattering prevention film, without providing the synthetic resin film for integrating a glass substrate in a mold body separately.
  • a sensor film can be substituted without providing the synthetic resin film for integrating a glass substrate in a mold body separately.
  • fusion between the synthetic resin film and the molding resin is promoted, and the mold body and the glass substrate are more reliably integrated through the synthetic resin film.
  • the mold body constituting at least a part of the case is injection-molded, since the glass substrate of the touch panel is integrally formed with the mold body, an assembly process for attaching the touch panel to the case is unnecessary. Become.
  • the glass substrate and the surrounding mold body are integrally formed, and the glass substrate of the touch panel and the surrounding case are made seamless so that a complete dustproof and waterproof function can be obtained.
  • FIG. 1 is an exploded perspective view of a mobile phone 50 in which a touch panel 2 is fixed by a touch panel fixing structure 1 according to the first embodiment of the present invention.
  • FIG. 2 is an upper case 3A in which a glass substrate 4 is fixed by the touch panel fixing structure 1.
  • FIG. 3 is a bottom view of the upper case 3A to which the glass substrate 4 is fixed.
  • FIG. 4 is a longitudinal sectional view taken along the line BB in FIG. 2.
  • FIG. 5 is along the line AA in FIG.
  • FIG. 6 is an enlarged view of a main part in which a fixing part between the glass substrate 4 and the upper case 3A in FIG. 5 is enlarged.
  • FIG. 7 is an exploded perspective view of the touch panel 2.
  • FIG. 9 is a longitudinal sectional view showing a molding process of the upper case 3A.
  • FIG. 10 shows a glass substrate by a touch panel fixing structure 10 according to the second embodiment of the present invention.
  • 15 is the case frame 13
  • FIG. 11 is an exploded perspective view of the touch panel 2.
  • FIG. 12 is a partially omitted vertical cross-sectional view taken along the line CC in FIG. 10.
  • FIG. 13 is still another embodiment.
  • FIG. 14 is an exploded perspective view showing a conventional touch panel device 100.
  • FIG. 15 is a longitudinal sectional view of the touch panel device 100.
  • the touch panel fixing structure 1 is used as a fixing structure for fixing the touch panel 2 as an input device of the mobile phone 50 to the case 3 of the mobile phone 50.
  • the hollow case 3 includes an upper case 3A having a touch panel 2 fixed along the surface, and a lower case 3B that is engaged with the upper case 3A from the back side and is combined with the case 3 having a thin rectangular parallelepiped shape.
  • a liquid crystal display panel 51 disposed on the back side of the touch panel 2 and a printed wiring board 52 on which electronic components for operating the mobile phone 50 are mounted are accommodated therein.
  • the upper case 3A and the lower case 3B are illustrated in separate injection molding processes using PC / ABS alloy mixed with PC (polycarbonate) resin and ABS resin (acrylonitrile, butadiene, styrene copolymer synthetic resin) as a molding resin.
  • PC polycarbonate
  • ABS resin acrylonitrile, butadiene, styrene copolymer synthetic resin
  • the touch panel 2 is a capacitive touch panel 2 that detects a finger input operation based on a change in the capacitance of the transparent sensor electrode to which the finger, which is an input operation body, approaches.
  • the wiring patterns made of MAM (Mo / Al / Mo three-layer metal film) connected to each transparent sensor electrode are insulated from each other (a large number of transparent sensor electrodes (not shown) made of a thin film of (indium tin oxide)). Is formed.
  • the glass substrate 4 is formed by individually cutting out a large number of glass substrates 4 from a glass original plate that can be cut out according to the outer shape of the touch panel 2.
  • the glass substrate 4 is cut out by a scribe cut that cuts along the cut by applying a physical impact by cutting the glass substrate 4 with a diamond cutter or the like along the outline to be cut, as shown in FIG.
  • a curved line is included in the contour of the second glass substrate 4, it cannot be cut out along the curved line.
  • the scribe cut is physically impacted and cut from the glass original plate, a large number of microcracks remain around the cut surface, and the strength of the glass substrate 4 is easily deteriorated due to the microcracks.
  • the glass substrate 4 is cut out by chemical etching that masks the surface and the back surface of the glass original plate while leaving the outline of the glass substrate 4, and removes the chemical solution that melts the glass through the portion along the outline. . Since this chemical etching can be performed along an arbitrary curve, the glass substrate 4 including the contour of the curve can be cut out, and the glass substrate 4 can be obtained without applying mechanical impact. Is obtained. On the other hand, the end surface of the glass substrate 4 cut out by chemical etching is etched outwardly from the contours of the front and back surfaces toward the center by etching from the front and back surfaces as shown in FIG.
  • the back surface of the glass substrate 4 on which the transparent sensor electrodes and the wiring patterns are formed has a PET (polyethylene terephthalate) so that the transparent sensor electrodes and the wiring patterns can be prevented from being scratched during assembly or to be corroded by direct contact with air. It is covered with a transparent protective film 7 made of talato.
  • the transparent protective film 7 has a fixing portion 7a attached to the entire back surface of the glass substrate 4 with a transparent adhesive 8 mainly composed of an acrylic component, and as shown in FIG.
  • the adhesive 8 attached to the surface of the transparent protective film 7 facing the glass substrate 4 is also formed on the inclined surface 4b of the glass substrate 4 at the end portion 7b of the transparent protective film 7 protruding from the back surface of the glass substrate 4. It is exposed downward.
  • an adhering portion 9 c of an anti-scattering film 9 made of PET is attached with the same transparent adhesive 8 that adheres the transparent protective film 7.
  • the glass substrate 4 is exposed to the outside along the surface of the case 3 and may be damaged unexpectedly by receiving an external force. However, the glass substrate 4 damaged by the anti-scattering film 9 being attached to the surface Do not scatter outside. As shown in FIG.
  • the scattering prevention film 9 is slightly separated from the peripheral portion of the glass substrate 4 by the peripheral end portion 9 b protruding from the surface of the glass substrate 4, and is adhered to the back surface of the end portion 9 b. It is located above the inclined surface 4a with the agent 8 attached.
  • the anti-scattering film 9 is formed of transparent PET as a whole. However, in order to show the input operation area where the transparent sensor electrode is disposed on the back surface, a frame portion around the input operation area is formed with the case 3.
  • the mask 9a is formed by printing black ink or the like having the same color and painting it to shield the wiring pattern.
  • the end portions 9b and 7b of the anti-scattering film 9 and the transparent protective film 7 are slightly protruded from the contours of the front surface and the back surface of the glass substrate 4 and fixed portions 9c. 7a are adhered to the entire front and back surfaces of the glass substrate 4 with an adhesive 8, respectively.
  • a fixed mold 53 for molding the upper case 3A in the core 53a.
  • the decorative film 5 is drawn from the roll along the inner surface of the cavity 54 a of the movable mold 54 that forms the surface of the upper case 3 ⁇ / b> A.
  • the decorative film 5 positioned along the inner surface of the cavity 54a has a printing layer 5a formed in a region facing the core 53a, and a heat-sensitive adhesive layer attached to the entire back surface thereof.
  • the PC / ABS alloy that flows into the peripheral edge of the glass substrate 4 wraps around the end portion 7b of the transparent protective film 7 protruding from the contour of the back surface of the glass substrate 4, and along the inclined surface 4a of the glass substrate 4, It wraps around the back side of the end portion 9b of the anti-scattering film 9 protruding from the contour of the surface, and comes into contact with the end portions 7b and 9b of the anti-scattering film 9 and the transparent protective film 7 and the adhesive 8 attached to one surface thereof.
  • the PC resin contained in the molding resin PC / ABS alloy is a polycondensation reaction resin by an ester reaction, and in common with the PET which is a material of the scattering prevention film 9 and the transparent protective film 7,
  • the acrylonitrile of the ABS resin contained in the ABS alloy has the same components as the acrylic acid of the adhesive 8.
  • fusion between the scattering prevention film 9 and the end portions 7b and 9b of the transparent protective film 7 and the adhesive 8 adhering to them and the molding resin is promoted, and they are firmly integrated with each other after molding.
  • the PC / ABS alloy and the glass substrate 4 have different thermal shrinkage rates, but the scattering prevention film 9 and the transparent protective film 7 in which the fixing portions 7a and 9c adhere to the glass substrate 4 are integrated with the case 3A in which the molding resin is cured. Therefore, as shown in FIGS. 5 and 6, the glass substrate 4 to be insert-molded is integrally fixed to the case 3A without a gap.
  • the PC / ABS alloy that was heated and melted in the injection molding process also flowed into the back surface facing the core 53a of the decorative film 5 positioned along the inner surface of the movable mold 54, and adhered to the part.
  • the printed layer 5a of the decorative film 5 is adhered by the heat-sensitive adhesive layer.
  • the molding resin does not turn to the portion of the decorative film 5 facing the surface of the touch panel 2, the predetermined temperature is not reached and the touch panel 2 is not bonded.
  • the decorative film 5 is peeled off after the molding resin is cured, the portion in contact with the touch panel 2 is peeled off, and the printed layer 5a is transferred to the surface of the case 3A as shown in FIG.
  • the case 3A integrally molded with the glass substrate 4 obtained in the above-described injection molding process does not generate a gap between the glass substrate 4, and thus a complete waterproofing action on the surface side is obtained.
  • the mold body molded with the molding resin is the case 3A that constitutes the upper lid of the case 3, but may be the entire case 3 or a part of the case around the touch panel 2. As long as it constitutes, any part may be sufficient.
  • a touch panel fixing structure 10 that integrally fixes the touch panel 2 to the case frame 13 around the touch panel 2 will be described with reference to FIGS. 10 to 12.
  • the same or corresponding components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
  • a mold body formed by injection molding is a case frame portion 13 that forms a frame body only around the touch panel 2 of the case 3 ⁇ / b> A according to the first embodiment.
  • the case frame portion 13 is molded using an elastic resin such as PC or ABS as a molding resin.
  • the outer shape of the case frame portion 13 is fitted into the fitting hole 16 in a state where the case frame portion 13 is compressed, and is positioned and fixed.
  • the touch panel 2 is formed by insulating a plurality of transparent sensor electrodes made of an ITO thin film and a plurality of wiring patterns connected to a transparent sensor electrode made of MAM on the surface of the glass substrate 4, as shown in FIG.
  • the fixing portion 7a of the transparent protective film 7 made of PET resin is bonded to the entire surface of the glass substrate 4 with the transparent adhesive 8.
  • the end 7b of the transparent protective film 7 protrudes slightly laterally from the contour of the surface in the peripheral portion of the glass substrate 4, and the protruding end 7b adheres to the back surface of the adhesive 8 At the same time, it faces the inclined surface 4a while being slightly separated from the glass substrate 4.
  • the transparent protective film 7 is adhered to the surface of the glass substrate 4 and serves to prevent the broken glass from being scattered. Therefore, the scattering preventing film 9 is not used.
  • the fixing of the glass substrate 4 of the touch panel 2 to the case frame portion 13 is performed in an injection molding process in which the glass substrate 4 is insert-molded when the case frame portion 13 is formed as in the first embodiment.
  • the case frame section 13 is placed.
  • a resin such as elastic PC or ABS, which is a molding material, is heated and melted to flow into the core 53a and the cavity 54a. Resins such as PC and ABS having elasticity that is heated and melted also flow into the back surface of the end 7b of the transparent protective film 7 protruding from the contour of the surface of the glass substrate 4 and the adhesive 8 attached to the back surface.
  • the transparent protective film 7 is formed of a material that is fused to the molding resin, the two are fused together, and after the molding resin is cured, the transparent protective film 7 is bonded to the glass substrate 4 as shown in FIG.
  • the glass substrate 4 and the case frame 13 of the touch panel 2 are integrally formed with no gap through the transparent protective film 7 to be performed.
  • the glass surface of the back surface of the glass substrate 4 formed integrally with the case frame 13 is exposed as it is, and a piezoelectric element 17 serving as a vibration source is fixed to a part of the exposed back surface as shown in FIG. Then, the touch panel unit 11 in which the case frame portion 13 is integrated around the touch panel 2 is manufactured.
  • the outer shape of the touch panel unit 11 is the outer shape of the case frame portion 13 and is slightly larger than the inner diameter of the fitting hole 16 of the case 3A, the case frame portion 13 which is an elastic body is fitted into the fitting hole 16 while being compressed.
  • the touch panel unit 11 can be easily assembled along the surface of the case 3A.
  • the vibration of the piezoelectric element 17 vibrates only the glass substrate 4 supported via the case frame portion 13 which is an elastic body and is not transmitted to the case 3 held by the hand. Therefore, the piezoelectric element 17 is vibrated in response to an input operation. By doing so, the operator receives vibrations only from the input operation region of the glass substrate 4 and can clearly detect even minute vibrations.
  • the end portions 7b and 9b of the synthetic resin films 7 and 9 are projected from both the front and back surfaces of the glass substrate 4, but if it is projected from at least the outline of one surface, the glass A mold body made of a substrate and a synthetic resin can be integrally formed. Further, if the end portion of the synthetic resin film is disposed in the vicinity of the peripheral portion of the glass substrate 4 into which the molding resin flows, and the end portion is integrally formed with the mold body together with the peripheral portion, the end portion is the glass substrate. 4 may be inside the front or back contour. For example, as shown in FIG.
  • the end portions 7b and 9b are bent in a direction in which the synthetic resin films 7 and 9 are bonded to the front surface or back surface of the peripheral portion of the glass substrate 4 or the end portions are separated from the front surface or back surface.
  • It may be a synthetic resin film.
  • the peripheral part of a glass substrate means the area
  • the synthetic resin film to be operated in this way is not limited to the above-described embodiments, and the sensor electrode is printed and bonded to the glass substrate to support the sensor electrode along the surface or the back surface of the glass substrate.
  • Various synthetic resin films that are attached along the glass substrate of the touch panel such as a sensor film, a decorative decorative film, and an anti-scattering film can be used. Furthermore, in the structure in which the molding resin for molding the mold body covers a part of the periphery of the glass substrate, if a synthetic resin film or an insulating synthetic resin layer is fixed to the area on the glass substrate covered with the molding resin The glass substrate and the mold body are integrally formed without a gap. Therefore, for the purpose of insulating and protecting the sensor electrode formed on the glass substrate, the insulating protective layer formed by coating, screen printing, roll coater, etc.
  • a synthetic resin molding material may be injection molded so that the mold body covers the insulating protective layer formed on the part, and the glass substrate may be integrally molded with the mold body.
  • the synthetic resin film that adheres to the glass substrate and the molding resin that molds the mold body are the same synthetic resin, the molding resin that is melted by heating and the synthetic resin film are fused and bonded to the glass substrate.
  • the glass substrate is integrally formed with the mold body through the synthetic resin film. Therefore, if both are synthetic resins, the present invention can be applied. However, if the components of the synthetic resin are common, they are more easily fused to each other.
  • a synthetic resin film that adheres to a glass substrate has an ester group. If it is a condensation reaction resin, it is preferable to use a polycondensation reaction resin by an ester reaction such as a PC (polycarbonate) resin as a molding resin. Furthermore, if the synthetic resin component of the adhesive that adheres the synthetic resin film to the glass substrate is the same as that of the molding resin, the molding resin is fused to the adhesive that adheres to the synthetic resin film, and the glass substrate and the molded body Integration is promoted.
  • the adhesive is mainly composed of an acrylic acid component, acrylic resin or ABS resin (acrylonitrile, butadiene, styrene copolymer synthetic resin) having a similar structure to acrylic acid, PMMA (polymethyl methacrylate)
  • a resin, an AS (acrylonitrile styrene copolymer) resin, an MS (acryl styrene copolymer) resin, or the like may be used as a molding resin material for molding the mold body.
  • the glass substrate is described as the glass substrate 4 cut out by chemical etching, but may be a glass substrate cut out by a scribe cut.
  • a glass substrate cut out by scribe cutting has many micro cracks at the cut end face.
  • the micro crack is covered with a molding resin, and a mold body is integrally formed around the end face. Therefore, deterioration and cracking of the glass substrate can be prevented.
  • a touch panel fixing structure in which a touch panel that supports a transparent sensor electrode by a glass substrate is fixed along the surface of the case.

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  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne une structure de fixation d'écran tactile. Lors du moulage par injection d'un boîtier, un substrat en verre destiné à un écran tactile est moulé par insertion de sorte que le boîtier et le substrat en verre forment une même pièce, sans aucun espace entre eux. un film de résine synthétique, dont les bords se trouvent près du périmètre du substrat en verre, est lié au substrat en verre, et le substrat en verre auquel est lié le film de résine synthétique est moulé par insertion dans un corps moulé constituant une partie du boîtier. Au cours dudit moulage, une résine synthétique en fusion à partir de laquelle est moulé le corps moulé fond sur les bords du film de résine synthétique, entraînant la formation d'une même pièce du substrat en verre et du corps moulé, le film de résine synthétique lié au substrat en verre étant intercalé entre eux de telle sorte qu'aucun entrechoquement ne survient.
PCT/JP2012/084250 2011-12-27 2012-12-21 Structure de fixation d'écran tactile WO2013100159A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011285480A JP2013132855A (ja) 2011-12-27 2011-12-27 タッチパネルの固定構造
JP2011-285480 2011-12-27

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WO2013100159A1 true WO2013100159A1 (fr) 2013-07-04

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WO (1) WO2013100159A1 (fr)

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CN113194649A (zh) * 2021-05-11 2021-07-30 深圳市创智成科技股份有限公司 一种外壳、加固手持终端以及外壳的制备方法

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JP2013146875A (ja) * 2012-01-17 2013-08-01 Nissha Printing Co Ltd ガラスインサート成形品及びその製造方法、並びにフィルム一体ガラス
KR101511216B1 (ko) 2014-12-09 2015-04-10 주식회사 씨아이씨티 인쇄필름 선행 커팅에 의한 곡면 글라스 열전사 방법
JP6214058B2 (ja) * 2015-09-28 2017-10-18 双葉電子工業株式会社 タッチパネル
JP6214059B2 (ja) * 2015-09-28 2017-10-18 双葉電子工業株式会社 タッチパネル
EP3514516B1 (fr) * 2016-09-14 2023-10-25 Sony Group Corporation Capteur, dispositif d'entrée, et dispositif électronique
KR102539055B1 (ko) 2017-02-17 2023-06-01 소니그룹주식회사 센서, 입력장치 및 전자기기
CN110497115B (zh) 2018-05-16 2022-08-09 林肯环球股份有限公司 具有碱土金属的焊接电极焊丝

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JP2009146354A (ja) * 2007-12-18 2009-07-02 Nissha Printing Co Ltd タッチパネル一体型樹脂成形体
JP2010214601A (ja) * 2009-03-13 2010-09-30 Shimada Precision Kk フィルムインサート成形品及びその製造方法並びにこれを備えた液晶表示装置

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WO2008035736A1 (fr) * 2006-09-22 2008-03-27 Nissha Printing Co., Ltd. Étui de boîtier, procédé de fabrication de l'étui de boîtier et insert en verre formant une filière utilisé dans le procédé
JP2009146354A (ja) * 2007-12-18 2009-07-02 Nissha Printing Co Ltd タッチパネル一体型樹脂成形体
JP2010214601A (ja) * 2009-03-13 2010-09-30 Shimada Precision Kk フィルムインサート成形品及びその製造方法並びにこれを備えた液晶表示装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113194649A (zh) * 2021-05-11 2021-07-30 深圳市创智成科技股份有限公司 一种外壳、加固手持终端以及外壳的制备方法
CN113194649B (zh) * 2021-05-11 2023-08-11 深圳市创智成科技股份有限公司 一种外壳、加固手持终端以及外壳的制备方法

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