JP2010128523A - Resistance film touch panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reusable resistance film touch panel for recycling transparent electrode glass by easily removing an unusable transparent electrode film from the transparent electrode glass and performing exchange into the new film. <P>SOLUTION: The resistance film touch panel 1 is constituted by superimposing the transparent electrode film 2, which is obtained by forming a transparent conductive film on a transparent film, on the transparent electrode glass 3, which is obtained by forming a transparent conductive film on a transparent glass plate, and allowing the peripheral edges of both to adhere each other with the use of a frame shape adhesive sheet 4 held between both. The adhesive sheet 4 includes a degradable adhesive sheet, so as to allow the degradable adhesive sheet 4 to be removed from the transparent electrode glass 3 together with the transparent electrode film 2. Connector terminals 5, 6 are respectively independently arranged in the transparent electrode film 2 and the transparent electrode glass 3, and also the connector terminal 5 on the side of the transparent electrode film 2 is integrally formed with the transparent electrode film 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a resistive film touch panel configured by superposing a transparent electrode film and a transparent electrode glass and bonding the peripheral portions of both with an adhesive sheet.

  Resistive touch panels placed on screens such as LCDs (liquid crystal displays) and CRTs (CRTs) are used as input devices for information devices such as electronic notebooks, image forming devices such as copiers and printers, and personal computers. When the finger is pressed with a finger or a pen in accordance with the instructions on the fluoroscopic screen, it has a function of reading the pressed coordinates.

  Here, the structure of a conventional resistive touch panel will be described with reference to FIGS.

That is, FIG. 8 is a perspective view of a conventional resistive touch panel, FIG. 9 is an exploded perspective view of the resistive touch panel, and the resistive touch panel 101 shown in FIG. 8 forms a transparent conductive film on a thin transparent film such as a PET film. The transparent electrode film 102 and the transparent electrode glass 103 formed by forming a transparent conductive film on a relatively thick transparent glass plate are overlapped, and both sides of the frame are interposed between the peripheral portions thereof. It is configured to be bonded by an adhesive sheet 104 such as a tape. Then, between the upper transparent electrode film 102 and the lower transparent electrode glass 103, one end of a thin terminal connector 105 is inserted between the transparent electrode film 102 and the transparent electrode glass 103 so as to be electrically connected to each other. It is heat welded.
JP-A-11-095926 JP 2003-150316 A

  By the way, although the operation component in which the resistive film touch panel is mounted is returned to the manufacturer as a recycled product, some resistive film touch panels mounted thereon are functioning normally.

  However, even if the resistive touch panel is functioning normally, the surface of the transparent electrode film that is touched by the operator's finger, pen, etc. is reused (reused) because scratches, abrasion, contamination, etc. occur. I couldn't do it, and I had to replace the whole thing with a new one. That is, the conventional resistive touch panel 101 as shown in FIGS. 8 and 9 is not configured in consideration of reuse, and the transparent electrode film 102 is bonded for the purpose of fixing. The transparent electrode glass 103 cannot be reused by peeling it from the 103, and the entire resistive film touch panel 101 including the reusable transparent electrode glass 103 needs to be discarded and replaced with a new one, which is extremely uneconomical. Met.

  The present invention has been made in view of the above problems, and the purpose of the present invention is to recycle the transparent electrode glass by easily peeling the transparent electrode film that has become unusable from the transparent electrode glass and replacing it with a new one. The object is to provide a reusable resistive touch panel that can be used.

  In order to achieve the above object, the invention described in claim 1 includes: a transparent electrode film formed by forming a transparent conductive film on a transparent film; and a transparent electrode glass formed by forming a transparent conductive film on a transparent glass plate. In the resistive touch panel configured by overlapping and adhering the peripheral portions of both by a frame-shaped adhesive sheet interposed between them, the adhesive sheet is configured by a dismantling adhesive sheet, and the disassembling adhesion The material sheet can be peeled from the transparent electrode glass together with the transparent electrode film.

  The invention according to claim 2 is the invention according to claim 1, wherein the transparent electrode film and the transparent electrode glass are provided with connector terminals independently, and the connector terminal on the transparent electrode film side is thermocompression bonded to the transparent electrode film. Or formed integrally.

  The invention according to claim 3 is the invention according to claim 2, wherein the connector terminal on the transparent electrode glass side is thermocompression bonded to the transparent electrode glass, and the disassembleable adhesive sheet is overlapped on the thermocompression bonding portion of the connector terminal. A notch is formed in a part of the disassembling adhesive sheet so as not to be formed.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, characterized in that a part of the adhesive surface of the disassembleable adhesive sheet to the transparent electrode glass is covered with a film. .

  The invention according to claim 5 corresponds to the film of the transparent electrode glass according to the invention according to claim 4, while covering a corner portion of the adhesive surface of the disassembleable adhesive sheet to the transparent electrode glass with a film. The corner portion is cut out to form a cut portion.

  According to the first aspect of the present invention, since the transparent electrode film is adhered to the transparent electrode glass by the peelable adhesive sheet that can be peeled off, the non-reusable transparent electrode film of the resistive touch panel returned as a recycled part is disassembled. It can be easily peeled off from the transparent electrode glass together with the adhesive sheet and replaced with a new one. For this reason, the transparent electrode glass can be continuously reused without being discarded, and the resistive touch panel can be reused, resulting in an economic advantage.

  According to the second aspect of the present invention, the connector terminals are independently provided on the transparent electrode film and the transparent electrode glass, and the connector terminals on the transparent electrode film side are integrally formed on the transparent electrode film. At this time, the transparent electrode film and the connector terminal can be integrally peeled off from the transparent electrode glass, and the problem that the connector terminal remains on the transparent electrode glass side does not occur.

  According to the invention described in claim 3, since a notch is formed in a part of the dismantling adhesive sheet so that the disassembling adhesive sheet does not overlap with the heat welding portion of the connector terminal on the transparent electrode glass side, When the transparent electrode film is peeled off from the transparent electrode glass together with the dismantling adhesive sheet when the resistance film touch panel is reused, the connector terminal on the transparent electrode glass side is peeled off from the transparent electrode glass in a state of being adhered to the dismantling adhesive sheet. The transparent electrode glass can be continuously used together with the connector terminal.

  According to the fourth aspect of the present invention, when the transparent electrode film is peeled off from the transparent electrode glass when the resistive touch panel is reused, the part covered with the film of the dismantling adhesive sheet is not adhered to the transparent electrode glass. This part causes the peeling to be surely peeled off from the transparent electrode glass together with the transparent electrode film, and the disassembling adhesive sheet does not remain on the transparent electrode glass side.

  According to the fifth aspect of the invention, when the transparent electrode film is peeled off from the transparent electrode glass when the resistive touch panel is reused, a disassembling adhesive sheet is formed by putting a finger into the cut portion formed in the corner portion of the transparent electrode glass. Can be easily peeled from the transparent electrode glass together with the transparent electrode film with good workability.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a perspective view of a resistive touch panel according to the present invention, FIG. 2 is an exploded perspective view of the resistive touch panel, FIG. 3 is an exploded perspective view of a part of the resistive touch panel from the back side, and FIG. 3 is an enlarged detail view of part A, FIG. 5 is an enlarged detail view of part B of FIG. 3, FIG. 6 is a perspective view of a part of the resistive film touch panel viewed from the back side, and FIG. 7 is an enlarged detail view of part C of FIG. It is.

  A resistive touch panel 1 shown in FIG. 1 is compared with a transparent electrode film 2 formed by forming a transparent conductive film made of indium tin oxide (ITO) on a thin transparent film such as a PET film, as shown in FIG. The transparent electrode glass 3 formed by forming a similar transparent conductive film on a transparent glass plate having a relatively thick thickness is overlapped, and a dot spacer (not shown) is interposed between the two, and the peripheral portions of the both are placed on these peripheral portions. It is configured to be bonded by a rectangular frame-shaped dismantling adhesive material sheet 4 interposed therebetween.

  Here, the decomposable adhesive sheet 4 is resistant to a vertical peeling force and a horizontal displacement force, and has a property of being easily peeled when pulled away from the end portion. A peelable double-sided adhesive tape (manufactured by Nitto Denko Corporation: No. 5000NS (product number)), a urethane gel sheet with adjustable adhesive strength (manufactured by INOAC: NAGFLEX (trade name)), and the like are used.

  Further, the transparent electrode film 2 and the transparent electrode glass 3 are provided with connector terminals 5 and 6 which are electrically connected to the two electrodes, respectively, and the connector terminal 5 on the transparent electrode film 2 side is provided with the transparent electrode. It is formed integrally with the film 2. On the other hand, the connector terminal 6 on the transparent electrode glass 3 side is configured separately from the transparent electrode glass 3 and is thermocompression bonded to the transparent electrode glass 3 with a conductive ink or the like. In the present embodiment, as shown in FIG. 2, a part of the disassembleable adhesive sheet 4 (the connector terminal 6 of the connector terminal 6 is disposed so that the dismantleable adhesive sheet 4 does not overlap the thermocompression bonding portion of the connector terminal 6. A rectangular notch 4a is formed in a portion corresponding to the thermocompression bonding portion. The connector terminal 5 on the transparent electrode film 2 side is configured separately from the transparent electrode film 2 in the same manner as the connector terminal 6 on the transparent electrode glass 3 side, and this is thermocompression bonded to the transparent electrode film 2 with conductive ink or the like. You may do it.

  Further, as shown in FIGS. 3 and 4, the corner portion of the adhesive surface of the disassembling adhesive sheet 4 to the transparent electrode glass 3 is covered with a triangular thin film 7, as shown in FIGS. 3 and 5. Thus, the corner part corresponding to the said film 7 of the transparent electrode glass 3 is cut off diagonally, and the cut part 3a is formed in the part. Therefore, in the resistive touch panel 1 formed by joining and integrating the transparent electrode film 2 and the transparent electrode glass 3 with the disassembling adhesive sheet 4, the transparent electrode glass 2 and the transparent electrode glass 3 are formed at the corners of the transparent electrode glass 3 as shown in FIGS. 6 and 7. The corner part covered with the triangular film 7 of the decomposable adhesive sheet 4 is exposed to the cut part 3a.

  By the way, the resistive touch panel 1 configured as described above is mounted on an input device of an information device such as an electronic notebook, an image forming apparatus, or a personal computer, and various operations are performed by pressing the surface with a finger or a pen. Done.

  Thus, when an information device reaches the end of its useful life, the input device provided in the information device has been returned to the manufacturer as a recycled product. If it works, it can be reused.

  The resistive touch panel 1 according to the present embodiment is configured in consideration of reuse, and since the transparent electrode film 2 is bonded to the transparent electrode glass 3 by a demountable adhesive sheet 4 that can be peeled off, a recycled component The non-reusable transparent electrode film 2 of the resistive touch panel 1 returned as can be easily peeled off from the transparent electrode glass 3 together with the disassembling adhesive sheet 4 and replaced with a new one. For this reason, the transparent electrode glass 3 can be continuously reused without being discarded, and the resistive touch panel 1 can be reused, resulting in an economic merit.

  In the resistive touch panel 1 according to this embodiment, the transparent electrode film 2 and the transparent electrode glass 3 are provided with the connector terminals 5 and 6 independently, and the transparent electrode film 2 side connector terminal 5 is provided with the transparent electrode. Since the film 2 is integrally formed, when the resistive touch panel 1 is reused, it can be integrally peeled off from the transparent electrode glass 3 together with the transparent electrode film 2 and the connector terminal 5, and the connector terminal 5 remains on the transparent electrode glass 3 side. There is no problem. In this case, a notch 4a is formed in a part of the disassembling adhesive sheet 4 as shown in FIG. 2, and the disassembling adhesive sheet 4 does not overlap with the heat welding portion of the connector terminal 6 on the transparent electrode glass 3 side. Therefore, when the transparent electrode film 2 is peeled from the transparent electrode glass 3 together with the disassembleable adhesive sheet 4 when the resistive touch panel 1 is reused, the connector terminal 6 on the transparent electrode glass 3 side adheres to the disassembleable adhesive sheet 4. In this state, the transparent electrode glass 3 can be continuously used together with the connector terminal 6 without being peeled off from the transparent electrode glass 3.

  Furthermore, in the resistive touch panel 1 according to the present embodiment, as shown in FIGS. 3 to 7, the triangular portion of the corner portion of the adhesive surface to the transparent electrode glass 3 of the disassembling adhesive sheet 4 is used. Since the cut portion 3a was formed by cutting the corner portion corresponding to the film 7 of the transparent electrode glass 3 while covering the transparent electrode glass 2, the transparent electrode film 2 was peeled off from the transparent electrode glass 3 when the resistive touch panel 1 was reused. The disassembling adhesive sheet 4 can be easily peeled off with good workability by putting a finger into the cut portion 3a formed at the corner portion of the glass 3. In this case, since the part covered with the film 7 of the decomposable adhesive sheet 4 is not adhered to the transparent electrode glass 3, this part becomes a trigger for peeling, and the decomposable adhesive sheet 4 becomes the transparent electrode film 2. At the same time, it is surely peeled off from the transparent electrode glass 3 so that the disassembling adhesive sheet 4 does not remain on the transparent electrode glass 3 side.

  As a result, when the resistance film touch panel 1 is reused, the transparent electrode film 2 that has become unusable can be easily peeled off from the transparent electrode glass 3 and replaced with a new one, which provides a high economic advantage. .

It is a perspective view of a resistive film touch panel according to the present invention. 1 is an exploded perspective view of a resistive touch panel according to the present invention. It is the disassembled perspective view which looked at a part of resistive film touch panel concerning the present invention from the back side. It is the A section enlarged detail drawing of FIG. It is the B section enlarged detail drawing of FIG. It is the perspective view which looked at a part of resistive film touch panel concerning the present invention from the back side. It is the C section enlarged detail drawing of FIG. It is a perspective view of the conventional resistive film touch panel. It is a disassembled perspective view of the conventional resistive film touch panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Resistance film touch panel 2 Transparent electrode film 3 Transparent electrode glass 3a Notch part of transparent electrode glass 4 Dismantleable adhesive sheet 4a Notch of dismantleable adhesive sheet 5,6 Connector terminal 7 Film

Claims (5)

A frame in which a transparent electrode film formed by forming a transparent conductive film on a transparent film and a transparent electrode glass formed by forming a transparent conductive film on a transparent glass plate are overlapped, and a peripheral portion of both is interposed therebetween In a resistive touch panel configured by bonding with a shaped adhesive sheet,
A resistive touch panel, wherein the adhesive sheet is composed of a disassembleable adhesive sheet, and the disassembleable adhesive sheet can be peeled from the transparent electrode glass together with the transparent electrode film.   2. The transparent electrode film and the transparent electrode glass are each provided with a connector terminal independently, and the transparent electrode film side connector terminal is thermocompression-bonded to the transparent electrode film or integrally formed. Resistive touch panel.   The transparent electrode glass side connector terminal is thermocompression bonded to the transparent electrode glass, and a part of the disassembleable adhesive sheet is notched so as not to overlap the thermocompression bonding portion of the connector terminal. The resistive film touch panel according to claim 2, which is formed.   The resistive film touch panel according to any one of claims 1 to 3, wherein a part of an adhesive surface of the disassembling adhesive sheet to the transparent electrode glass is covered with a film. The corner part of the adhesive surface to the transparent electrode glass of the destructible adhesive sheet is covered with a film, and the cut part is formed by cutting out the corner part corresponding to the film of the transparent electrode glass. The resistive film touch panel according to claim 4.

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