KR100864407B1 - Resistive touch being coupled with mold structure and manufacturing method thereof - Google Patents

Resistive touch being coupled with mold structure and manufacturing method thereof Download PDF

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Publication number
KR100864407B1
KR100864407B1 KR1020080002590A KR20080002590A KR100864407B1 KR 100864407 B1 KR100864407 B1 KR 100864407B1 KR 1020080002590 A KR1020080002590 A KR 1020080002590A KR 20080002590 A KR20080002590 A KR 20080002590A KR 100864407 B1 KR100864407 B1 KR 100864407B1
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KR
South Korea
Prior art keywords
touch
film
touch panel
transparent conductive
conductive film
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KR1020080002590A
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Korean (ko)
Inventor
정희섭
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(주)에이엠피테크놀로지
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • 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

Abstract

The touch screen structure proposed in the present invention can implement a touch window with a curved surface by using a resistive method and an effect capable of preventing handwriting recognition and a malfunction due to a minute contact, which are not realized in the capacitive method. The connection part with the front injection molding which fixes the flat panel touch window can be eliminated, and the connection part can eliminate the damage of the flat panel touch window due to contaminants or moisture ingress or noise caused by leakage current, etc. Can be maximized. According to the present invention, a method of manufacturing a touch screen applying a resistive touch panel to an injection molding may include forming a transparent conductive film in a touch window area of a light transmissive film used as a top plate of the touch panel, or forming a transparent conductive film in advance. Preparing a light-transmissive film for the top plate, injecting a molten resin in a region other than a predetermined region including the touch window region of the light-transmitting film to form an injection-bonded to the light-transmissive film, and the light-transmissive coupled to the injection Bonding the film and the lower plate of the touch panel.

Description

Resistive Touch Being Coupled with Mold Structure and Manufacturing Method Thereof}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch screen, and more particularly, to a touch screen having a structure in which durability and reliability are enhanced by applying a 4-wire or 5-wire resistive touch panel to a plastic instrument such as an injection molding product.

Recently, touch screens are often added to other mobile devices such as mobile phones and PDAs (Personal Digital Assistants). The touch screen provides convenience in using mobile communication, the Internet, online games, and the like by using a mobile device carried by a user. Compared to a mobile device using a keyboard or a keypad provided separately from the display screen, a mobile device using a touch screen that allows input of position coordinates or data using a finger or a pen in a touch window on the display screen By reducing the volume of the entire appliance, the design of the appliance can be made easy and convenient to carry.

As described above, a general touch screen device capable of inputting position coordinates and the like while viewing a display screen through a touch window of a mobile device may be manufactured by a method of fixing a combination of a window film on a touch panel to an injection molding-main frame. For example, a touch screen window in which a flat window function is combined with a resistive touch screen is applied. In addition, an optical or capacitive touch screen is mainly embedded directly in the injection molding as above.

1 is a schematic cross-sectional view of a conventional resistive touch screen mechanism. As shown in Fig. 1, the conventional resistive touch screen mechanism uses a PET film 1 having a transparent conductive film 2 formed thereon as a touch panel top plate, and a substrate 5 having a transparent conductive film 6 formed thereon. It consists of a touch panel bottom panel. In the case of a four-wire resistive touch screen, the upper plate 1 side is responsible for one of the x-axis coordinates and the y-axis coordinates, and the lower plate 5 side handles the remaining dogs to detect the touched position. That's the way it is. Signal input and output are made through FPC (Flexible Printed Circuit) 9, and the transparent conductive films 2 and 6 are formed by the wiring wiring electrode 7 formed on the lower plate 5 and the wiring electrode 3 of the upper plate. An equipotential surface parallel to each coordinate axis must be formed above to allow operation of the touch screen with linearity. For this purpose, in particular, on the upper plate 1 side, the “potential” forming wiring electrodes 3 are formed at the edges of the two sides facing each other, and a signal is input and output through the dispensing hole 4 on the transparent conductive film 2 of the upper plate. An equipotential surface parallel to the coordinate axis can be formed.

However, in the case where the film 1 on the side of the upper plate 1 on which the transparent conductive film 2 is deposited is applied by bonding to the injection molding, the transparent conductive film 2 is damaged by the high temperature during the injection molding process. There is a problem that the conduction uniformity of the conductive film 2 is broken. Accordingly, since linearity is distorted in the coordinate analysis of the touch position on the touch screen, a coordinate error occurs. As a result, the conventional resistive touch screen apparatus is a very difficult method to be applied for application to a mobile device. The above problem must be improved for application.

Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a keypad function which is mainly applied to an injection molded product by a capacitive method to a plastic appliance such as an injection molded product, a 4-wire or 5-wire resistive film type. It is applied to the touch panel to enhance durability and reliability, and solves the disadvantages such as the capacitive malfunction, thereby providing a touch screen structure that can efficiently use the touch window combining the display window function and the touch detection function. have.

In addition, another object of the present invention, particularly in the case of a 5-wire resistive touch panel, all the electrodes for analyzing the x, y coordinates are formed on the lower plate, the upper plate is a sensor for detecting the touch position only by fingers or pens, etc. Since a transparent conductive film is formed to perform a role, it is to provide a touch screen having a touch window structure in which an injection molding process is applied in various forms using the fact that the degree of conduction uniformity of the upper plate does not significantly affect the touch screen operation.

First, to summarize the features of the present invention, in order to achieve the object of the present invention as described above, a method of manufacturing a touch screen applying a resistive touch panel to an injection molding according to an aspect of the present invention, is used as a top plate of the touch panel Forming a transparent conductive film in the touch window area of the transparent film, or preparing a transparent film for upper panel of the touch panel in which the transparent conductive film is formed in advance; Injecting a molten resin into a region other than a predetermined region including the touch window region of the light-transmissive film to form an injection molded product bonded to the light-transmissive film; And coupling the lower plate of the touch panel with the translucent film bonded to the injection molded product.

In addition, according to another aspect of the present invention, a method of manufacturing a touch screen applying a resistive touch panel to an injection molded product includes a molten resin in an area excluding a certain area including a touch window area of a translucent film used as a top plate of the touch panel. Extruding to form an extrudate bonded to the translucent film; Forming a transparent conductive film in a touch window area of the light transmissive film bonded to the injection molded product; And combining the transparent plate on which the transparent conductive film is formed with the lower plate of the touch panel.

In addition, according to another aspect of the present invention, a method of manufacturing a touch screen applying a resistive touch panel to an injection molding is performed by injecting a molten resin into a light-transmissive film so as to have a smaller thickness in the touch window area than the periphery, thereby bonding the light-transmissive film Forming an injection molding; Forming a transparent conductive film on an inner side of the touch window area of the injection molded product used as a top plate of the touch panel; And coupling the lower plate of the touch panel with the injection molded material on which the transparent conductive film is formed. The thickness of the touch window region of the injection molding is preferably 50 micrometers or more and 1 millimeter or less. The light-transmitting film bonded to the injection molding can be removed. After the removing step, it is preferable to cure the paint remaining on the surface of the injection molding.

In addition, according to another aspect of the present invention, a method of manufacturing a touch screen applying a resistive touch panel to an injection molding may include forming a transparent conductive film in a touch window region of a light transmissive film used as a top plate of the touch panel, Preparing a translucent film for forming a top plate of the touch panel; Forming an element for a touch panel on the groove using an injection molded product having a groove in the touch window area as a lower plate of the touch panel; And combining the translucent film on which the transparent conductive film is formed and the injection molded material on which the elements for the touch panel are formed.

In addition, according to another aspect of the present invention, a method of manufacturing a touch screen applying a resistive touch panel to an injection molded product includes: manufacturing an upper plate and a lower plate of a touch panel; And using the injection molding having a groove in the touch window area, coupling the lower plate of the touch panel onto the groove and combining the upper plate on the lower plate.

In all the above structures, a predetermined electrode may be formed on the transparent conductive film formed on the upper plate.

The touch panel may be a 4-wire or 5-wire resistive film.

Connecting an FPC to a plurality of wiring electrodes included in the touch panel, wherein the FPC is connected to the plurality of wiring electrodes formed on a front surface of the lower plate or the plurality of wiring electrodes extending to a side of the lower plate. The wiring electrodes may be connected to each other, or the plurality of wiring electrodes may be connected to the electrodes dispensed to the rear surface of the lower plate.

In all of the above structures, it may include forming a coating, anti-fingerprint coating, or AR coating on the front of the top plate to increase the surface hardness.

The transparent conductive film may be formed using a TCO containing ITO, a half mirror using a metal thin film, or a conductive polymer.

After forming an acrylate-based or SiOx-based buffer layer for improving the mechanical or electrical properties of the transparent conductive film formed on the upper plate, the transparent conductive film may be formed.

In addition, according to another aspect of the present invention, a touch screen in which a resistive touch panel is applied to an injection molded product may include a film in which a transparent conductive film is formed in a touch window region of the light transmissive film or a light transmissive film in which a transparent conductive film is formed in advance. By using a molten resin is injected into a region other than a predetermined region including the touch window region of the light-transmitting film, the injection molding is bonded to the light-transmissive film, and the light-transmitting film and the lower plate of the touch panel is bonded It is done.

In addition, according to another aspect of the present invention, a touch screen to which a resistive touch panel is applied to an injection molded product may be formed by using a light transmissive film as a top plate of the touch panel, except for a region including a touch window region of the light transmissive film. Injection to bond the injection molding to the light-transmitting film, to form a transparent conductive film in the touch window region of the light-transmitting film bonded to the injection, characterized in that the transparent plate is formed with the transparent film is combined with the lower plate of the touch panel. .

In addition, according to another aspect of the present invention, a touch screen to which a resistive touch panel is applied to an injection molded product is injected with a molten resin so as to have a smaller thickness in a touch window area than a periphery of the light transmissive film to bond the injection molded product to the light transmitting film, The injection molding is used as a top plate of the touch panel to form a transparent conductive film inside the touch window area of the injection molding, and the injection molding having the transparent conductive film formed thereon is combined with the bottom plate of the touch panel. The light transmissive film bonded to the injection molding may be removed, and after removing the light transmissive film, the paint remaining on the surface of the injection molding may be cured.

In addition, according to another aspect of the present invention, a touch screen in which a resistive touch panel is applied to an injection molded product may include a film in which a transparent conductive film is formed in a touch window region of the light transmissive film or a light transmissive film in which a transparent conductive film is formed in advance. By using an injection molded product having a groove in the touch window area as a lower plate of the touch panel, the elements for the touch panel are formed on the groove, and the transparent film on which the transparent conductive film is formed and the elements for the touch panel are formed. It is characterized by combining the injection molding.

In addition, according to another aspect of the present invention, a touch screen to which a resistive touch panel is applied to an injection molding is formed by using an injection molding having a groove in a touch window region, and bonding a lower panel of the touch panel onto the groove, The upper panel of the touch panel is characterized in that it is combined.

As described above, in the touch screen realizing the touch window structure according to the present invention, by applying a 4-wire or 5-wire resistive film type touch panel to a plastic instrument such as an injection molded product, the display panel function and touch are enhanced. The touch window combined with the detection function can be used efficiently.

In addition, in the touch screen realizing a touch window structure according to the present invention, all electrodes for analyzing x and y coordinates are formed on the lower plate, and the upper plate serves as a sensor for detecting a touch position by a finger or a pen. By applying a 5-wire resistive touch panel having a transparent conductive film for the touch window by various injection molding processes, the touch screen operation can be stably operated by the conductivity uniformity of the upper plate without being greatly influenced.

In addition, in a product using a touch screen window using an existing resistive film method, since the external appearance of the portion corresponding to the window area, which is an external design area, cannot be curved, the touch screen window (also called touch window) area may not be flat. It is limited by the design which cannot be implemented. Especially, since the internal circuit wiring is exposed to the outside air, it is accompanied by durability due to corrosion and noise due to current leakage, and a charge transfer method to solve this problem. In the case of the capacitive method, the capacitive method is implemented by a digital method, which makes it difficult to recognize a writing type input due to a limitation in resolution and a decrease in speed. Many factors, and the circuit cost for multi-line connection is high Not an enemy In addition, the capacitive method does not occur in a state of wearing gloves, and only a bare finger can be touched, a malfunction occurs due to very minute skin contact, and such a series of touch operations changes according to the use environment. There are many limitations on reliability. Accordingly, in the touch screen realizing the touch window structure according to the present invention, the touch window using the existing resistive film and an effect capable of preventing handwriting recognition and malfunction due to minute contact and the like which are not realized in the capacitive method. It can be realized as a curved surface, and eliminates the connection part with the front injection molding which fixes the existing flat touch window, and causes the noise of the flat type touch window due to contamination or moisture infiltration or leakage current etc. Can be eliminated and the degree of freedom of design can be maximized.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited to the embodiments. Like reference numerals in the drawings denote like elements.

2 is a view for explaining the structure of the 5-wire resistive touch panel 20 applied to the present invention.

Referring to FIG. 2, the 5-wire resistive touch panel 20 is formed of ITO (Indium) on the lower transparent substrate 21 such as glass, polyethylene terephthalate (PET), polycarbonate (PC), poly methyl methacrylate (PMMA), or the like. Highly conductive TCO (transparent conductive oxide) films such as tin oxide), PEDOT (polyethylene dioxy thieophene), AZO (Al doped Zinc Oxide), ATO (antimony tin oxide), or Al, Ni, Cr, SUS (stainless steel) A transparent conductive film 22 such as a half mirror thin film such as steel) or Ti is formed, and an equipotential forming electrode 23 is formed thereon. The lower transparent substrate 21 is in close contact with the upper transparent substrate 26 while maintaining a predetermined distance by the intermediate spacer 24. The upper transparent substrate 26 may be in the form of a transparent film such as PET. A transparent conductive film 25 is formed below the upper transparent substrate 26. In the touch panel 20 having such layers, when a finger or a pen touches the upper transparent substrate 26, the transparent conductive film 25 and the lower transparent substrate 21 below the upper transparent substrate 26 at the contact position. ) The transparent conductive film 22 may be in contact with each other. At this time, about five signals are formed so that the change of the signal applied to the transparent conductive film 22 on the lower transparent substrate 21 is connected to the four corners of the transparent conductive film 22 and the like and other positions in a wiring form. By reading through the connection terminals, it is possible to analyze the x and y coordinates of the position in contact with the upper transparent substrate 26. Here, the equipotential forming electrode 23 allows the equipotential to be uniformly distributed on the transparent conductive film 22 on the lower transparent substrate 21, thereby allowing the finger contacted position to be accurately interpreted. In the 5-wire resistive touch panel 20, such an equipotential forming electrode 23 does not need to be formed on the upper transparent substrate 26, and the transparent conductive film 25 of the upper transparent substrate 26 is formed of a lower transparent substrate ( 21 is in contact with the transparent conductive film 22 to perform only a sensor function of detecting a corresponding touch position.

Although the structure of the 4-wire resistive touch panel applied to the present invention is not shown, it is similar to FIG. 2, except that a predetermined wiring electrode is also required to assist in forming an equipotential on the transparent conductive film of the upper transparent substrate. For example, using the two signal connection terminals formed to be connected to two corners, such as a transparent conductive film of the upper transparent substrate in the form of a wire, the coordinate position of any one of the x or y coordinates is analyzed, and the transparent conduction of the lower transparent substrate is performed. It is configured to interpret any one of the remaining x or y coordinates by using two signal connection terminals formed to be connected in a wiring form to two corners of the film or the like.

As a method of applying such a resistive touch panel 20 to an injection molded product, a method using a film having a transparent conductive film formed on a film for the upper transparent substrate 26, which is used to make an injection molded window, and a film without a transparent conductive film are used. This paper proposes a touch screen structure based on the method used. In addition, there are various methods such as IML (In-mold Labeling) and IMD (In-mold Decoration) as a method of making an injection molding, and using such a method or a mixed method, an injection molding applied to a touch screen can be implemented. In the present invention, the IML method, in the injection on the film for the upper transparent substrate 26, put a pattern for the appearance display function under the film and hard-coated with a paint such as resin on the top of the film below the film It is a method of injection. In the present invention, the IMD method is to inject into the film for the upper transparent substrate 26, and put the pattern for the hard coating and appearance display function as shown above under the film and to inject below the film. The combination of these two methods can lead to various methods of constructing an injection product.

3 is an exploded view illustrating an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to an embodiment of the present invention. 4 is a view for explaining the assembly of the disassembled components of FIG.

3 and 4, the touch screen according to an embodiment of the present invention, the upper transparent substrate 26 for the upper plate 11, such as PET, PC film, formed on the touch window area on the upper plate 11 A transparent conductive film 12, an injection molded product 13 having a touch window region formed in a hole shape, a PC for the lower transparent substrate 21, a lower plate 14 such as PMMA, glass, and a lower plate 14 are formed. Equipotential for insulation of the transparent conductive film 15, the equipotential forming electrode 16 (or a wiring electrode connected to the signal connection terminal, hereinafter similar), the spacer 17, and the transparent conductive film 12 of the upper plate 11 An insulating layer 18 over the formation electrode 15, and a flexible printed circuit (FPC) 19. The FPC 19 applies a signal to signal connection terminals (for example, wiring electrodes formed up to four corners of the lower plate and other positions) connected to the transparent conductive film 15 and the like, and corresponds to a touch position. Output the signal. Here, the upper plate 11 such as PET or PC film may be a substrate having an appearance display function in which a predetermined pattern is given to color letters, logos, or the like by means of printing or a pattern.

As shown in FIG. 3, the upper plate film 11 having the transparent conductive film 12 formed thereon may be attached to the injection-molded product 13 on the touch window region in the form of a hole through a predetermined adhesive resin. Here, the injection molding 13 may be separately manufactured and then attached to the top plate film 11, or the top plate film 11 in which the transparent conductive film 12 is formed in advance in the touch window area according to the IML method. After fixing to a predetermined mold mold for the injection molded product 13 in which a region except a necessary region such as a window region, an electrode forming region, and a signal processing region is drilled in the form of a hole, the molten resin is melted by high temperature. Injection, ie, ejection or pouring, may be performed on the upper plate film 11 and the injection molded product 13 on the upper plate film 11 fixed to the mold die. At this time, for the application of the 4-wire resistive touch panel, after the upper film 11 and the injection molding 13 are combined, to assist in forming the equipotential on the transparent conductive film 12 of the upper plate 11 as necessary. It is also possible to form additional wiring electrodes and receive signals from the predetermined wiring electrodes of the lower plate 14 through a predetermined dispensing hole or the like in a structure similar to that of FIG.

Subsequently, the touch window region of the injection-molded product 13 in which the lower plate 14 on which lower plate components, such as the transparent conductive film 15, the equipotential forming electrode 16, the spacer 17, and the insulating layer 18, are formed, is formed into a hole. The touch screen structure according to the embodiment of the present invention may be assembled as shown in FIG. 4 by inserting through and bonding the upper plate 11 to which the transparent conductive film 12 is formed to be laminated or bonded in a fixed structure. have.

The upper plate 11, lower plate 14, and components therebetween assembled with the above-described injection molding 13 operate as a 4-wire or 5-wire touch panel, and thus the touch window of the upper portion of the upper plate 11 When the area is touched with a finger, a pen or the like, the corresponding signal is transmitted to the FPC 19 so that the x and y coordinates of the touched position can be interpreted. The FPC 19 is connected to the main body of the mobile device, for example, a signal processing module, and transmits a signal required for the lower plate 14, and a signal corresponding to a touch position is processed by a predetermined processor of the signal processing module to correspond. The touch position is interpreted and thus the required information on the display can be made.

3 and 4 illustrate a structure in which the FPC 19 is pulled out between the lower plate 14 and the injection molded product 13, but is not limited thereto. For example, as described below, the lower plate The signal is applied to signal connection terminals formed so as to be connected to four corners of the transparent conductive film 15 and the like and other positions in the form of a wire at the side 14 or the rear surface so that the change of the signal can be measured. It is also possible to bond 19) to read a signal corresponding to a touch position, for example, a voltage or a current, in the signal processing module.

FIG. 5 is an exploded view illustrating an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to another embodiment of the present invention. 6 is a view for explaining the assembly of the disassembled components of FIG.

5 and 6, the touch screen according to another embodiment of the present invention has a configuration similar to the touch screen structure of FIGS. 3 and 4. Touch screen according to another embodiment of the present invention, the upper transparent substrate 26 is formed in the touch window area on the upper plate 11, the upper plate 11, such as PET, PC film, etc. having an appearance display function in advance as described above A transparent conductive film 12, an injection molded product 13 having a touch window region formed in a hole shape, a PC for the lower transparent substrate 21, a lower plate 14 such as PMMA, glass, and a lower plate 14 are formed. An insulating layer 18 on the equipotential forming electrode 15 for insulating the transparent conductive film 15, the equipotential forming electrode 16, the spacer 17, and the top plate 11 from the transparent conductive film 12, and FPC 19 is included.

5 is different from FIG. 3, after bonding the upper plate film 11 on which the transparent conductive film 12 is not formed to the injection molded product 13, a method of forming the transparent conductive film 12 in the touch_window region. to be. For example, the top plate film 11 on which the transparent conductive film 12 is not formed is attached to the separately produced injection molded product 13, or as described above, the transparent conductive film 12 is formed in the touch window area according to the IML method. ) The upper plate film 11, which is not formed in advance, is fixed to a predetermined mold mold for the injection molded product 13 in which a necessary area such as a touch window region is drilled in a hole shape, and then the resin for injection is melted by high temperature. It is possible to produce a form in which the upper film 11 and the injection molding 13 are combined or discharged or poured onto the upper film 11 that is fixed to the mold. Thereafter, after the upper film 11 and the injection molded product 13 that are not formed with the transparent conductive film 12 are bonded, the transparent conductive film 12 is formed on the upper film 11, that is, inside the touch window area. ). At this time, in order to apply a 4-wire resistive touch panel, bus electrodes for assisting the formation of an equipotential are formed on the transparent conductive film 12 of the upper plate 11 as needed, and a predetermined dispensing hole or the like is formed. It is also possible to receive a signal from a predetermined wiring electrode of the lower plate 14 through this.

Subsequently, the lower plate 14 on which lower plate components, such as the transparent conductive film 15, the equipotential forming electrode 16, the spacer 17, and the insulating layer 18, are formed is inserted into the touch window region of the injection molded product 13, and the transparent conductive film is inserted. In close contact with the top plate 11 on which the film 12 is formed, a touch screen structure according to another embodiment of the present invention may be assembled as shown in FIG. 6.

The upper plate 11, lower plate 14, and components therebetween assembled with the above-described injection molding 13 operate as a 4-wire or 5-wire touch panel, and thus the touch window of the upper portion of the upper plate 11 When the area is touched with a finger, a pen or the like, the corresponding signal is transmitted to the FPC 19 so that the x and y coordinates of the touched position can be interpreted. Here too, the FPC 19 is connected to the main body of the mobile device, for example, a signal processing module for the interpretation of the corresponding touch position. As shown in FIGS. 5 and 6, the FPC 19 is connected to the lower plate 14 and the injection molding ( 13) Although the structure to be pulled out is illustrated, but not limited to this, for example, as described below, in the form of wiring from the lower plate 14 to the four corners and other positions of the transparent conductive film 15, etc. Signals corresponding to touch positions in the signal processing module may be bonded by bonding the FPC 19 on the side or the back to apply a signal to each of the signal connection terminals in the form of wire electrodes formed to be connected to measure a change in the signal. For example, a method of making the voltage or current readable is possible.

In the case of using such a touch screen structure as shown in FIGS. 3 to 6 in particular for the 5-wire resistive film type, all electrodes for analyzing the x and y coordinates are formed on the lower plate 14, and the upper plate 11 includes coordinate analysis. Since the transparent conductive film 12 is formed to serve as a sensor for detecting a touch position by only a finger or a pen without an electrode for the touch screen, even if the conductivity uniformity of the upper plate is affected by the high temperature in the injection molding process, It will be able to operate stably without being greatly affected.

7 is a view for explaining an exploded view of an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to another embodiment of the present invention. 8 is a view for explaining the assembly of the disassembled components of FIG.

7 and 8, the touch screen according to another embodiment of the present invention has a structure using a transparent injection molded material 30 made of a material such as PS resin. The remaining components are similar to FIGS. 3 to 6. Here, the top plate 11, such as PET, PC film for the upper transparent substrate 26 may be used as it is to protect the upper surface, it is not necessary to have the top plate film (11). Here, when the transparent injection molded product 30 is injected into the top plate 11 of PET, PC film, etc. by the IMD method, the top plate film 11 can be removed, and the top plate film 11 at the time of injection. In the case of using the uncured paint for hard coating below, it is preferable to cure the paint after removal of the upper film 11.

The touch window area of the transparent injection molding 30 is made thinner than other parts, for example, about 50 micrometers to 1 millimeter, so that the touch position can be input by being pressed according to the touch pressure from above, and the touch When the pressure is removed, it should be able to be restored by the elastic force. Such a transparent injection molded product 30 may be manufactured using a predetermined mold mold, and then a transparent conductive film 12 is formed in the touch window region of the transparent injection molded product 30. That is, after the touch window region of the transparent injection molding 30 is prepared as the upper base substrate, the transparent conductive film 12 is formed on the inner touch window region of the transparent injection molding 30 to operate as the upper panel of the touch panel.

Here, for the application of the 4-wire resistive touch panel, additional bus electrodes are formed on the transparent conductive film 12 to assist the formation of the equipotential as necessary, and the lower plate 14 is formed through a predetermined dispensing hole or the like. It is also possible to receive a signal from a predetermined wiring electrode.

Subsequently, the lower plate 14 on which lower plate components, such as the transparent conductive film 15, the equipotential forming electrode 16, the spacer 17, and the insulating layer 18, are formed is inserted into the touch window region of the transparent injection molding 30, and is then transparent. The touch screen structure according to another embodiment of the present invention may be assembled as shown in FIG. 8 by being fixed in close contact with the transparent injection molded product 30 on which the conductive film 12 is formed.

The lower plate 14 assembled with the transparent injection molding 30 as described above and the components therebetween operate as a four-wire or five-wire touch panel, so that the touch window area of the upper portion of the upper plate 11 is finger, When touched with a pen or the like, the corresponding signal is transmitted to the FPC 19 so that the x and y coordinates of the touched position can be interpreted. Here too, the FPC 19 is connected to the main body of the mobile device, for example, a signal processing module for the interpretation of the corresponding touch position, and as shown in FIGS. 7 and 8, the FPC 19 is connected to the lower plate 14 and the injection molding ( 30) but the structure is drawn out, but is not limited to this, for example, as described below, in the form of wiring from the lower plate 14 to the four corners and other positions of the transparent conductive film 15, etc. Signals corresponding to touch positions in the signal processing module may be bonded by bonding the FPC 19 on the side or the back to apply a signal to each of the signal connection terminals in the form of wire electrodes formed to be connected to measure a change in the signal. For example, a method of making the voltage or current readable is possible.

FIG. 9 is an exploded view illustrating an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to another embodiment of the present invention. 10 is a view for explaining the assembly of the disassembled components of FIG.

9 and 10, the touch screen according to another embodiment of the present invention is a PET, PC film having an appearance display function in advance for the upper transparent substrate 26 on which the transparent conductive film 12 is formed. Touch panel lower plate components, ie, the transparent conductive film 15, the equipotential forming electrode 16, in the groove 11 of the upper plate 11 and the groove of the transparent injection molding 30 made of a material such as PS resin, The touch screen structure according to another embodiment of the present invention may be assembled as shown in FIG. 10 by closely contacting the transparent injection molding 30 having the spacer 17 and the insulating layer 18. Here, the thickness of the touch window area of the transparent injection molding 30 is preferably in the form of a groove thinner than other portions in order to flatten the entire front-side appearance, but the present invention is not necessarily limited thereto. Since it is not intended to deliver the light, it is sufficient that it does not significantly affect the transmittance of a display screen such as an LCD (Liquid Crystal Display). Such a transparent injection molding 30 can be produced using a predetermined mold.

Here, for the application of the 4-wire resistive touch panel, a bus electrode for assisting the equipotential formation on the transparent conductive film 12 is additionally formed on the transparent conductive film 12 as necessary and used as a lower plate through a predetermined dispensing hole. It is also possible to receive a signal from a predetermined wiring electrode of the transparent injection molded product 30.

The upper plate 11 and the components therebetween assembled with the transparent injection molding 30 as described above operate as a four-wire or five-wire touch panel, so that the touch window area of the upper portion of the upper plate 11 is a finger, When touched with a pen or the like, the corresponding signal is transmitted to the FPC 19 so that the x and y coordinates of the touched position can be interpreted. Here, the FPC 19 may come out to the rear side through a predetermined through hole provided in the transparent injection molding 30 and be connected to a main body of the mobile device, for example, a signal processing module, but is not limited thereto. For example, the signal change may be measured by applying a signal to signal connection terminals formed to be connected to four corners of the transparent conductive film 15 and the like on the transparent injection molding 30 and other positions in a wiring form. It is also possible to bond the FPC 19 on the side or back so that the signal processing module can read the signal corresponding to the touch position, for example voltage or current.

FIG. 11 is an exploded view illustrating an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to another embodiment of the present invention. 12 is a view for explaining the assembly of the disassembled components of FIG.

11 and 12, the touch screen according to another embodiment of the present invention, PET, PC film having an appearance display function in advance for the upper transparent substrate 26, the transparent conductive film 12 is formed The upper plate 11 of the back plate and the lower plate 14 formed of the transparent conductive film 15, the equipotential forming electrode 16, the spacer 17, the insulating layer 18, and the like are all made of a material such as PS resin. It is a structure that is bonded to be fixed and adhered on the groove of the transparent injection molding (30). FIG. 11 shows a transparent conductive film 15, an equipotential forming electrode 16, a spacer 17, an insulating layer 18, and the like on a transparent injection product 30 such as PS resin having a flatness lower than that of a PC as shown in FIG. It is an improved structure in anticipation of a difficult case to form.

Here, for the application of the 4-wire resistive touch panel, additional bus electrodes are formed on the transparent conductive film 12 to assist the formation of the equipotential as necessary, and the lower plate 14 is formed through a predetermined dispensing hole or the like. It is also possible to receive a signal from a predetermined wiring electrode.

The thickness of the touch window area of the transparent injection molding 30 is preferably thinner than other portions in order to flatten the entire front-side appearance as shown in FIG. 10, but is not necessarily limited thereto. Since it is not intended to transmit touch pressure, it is sufficient that it does not significantly affect the transmittance of a display screen such as an LCD. Such a transparent injection molding 30 can be produced using a predetermined mold. In this case, the depth of the groove is preferably 0 to 2 mm. If the depth of the groove is 0, there is no groove. In this case, an adhesive resin or the like may be formed around the touch window area to serve as the groove. .

The lower plate 14, the upper plate 11, and the components therebetween assembled with the transparent injection molding 30 as described above operate as a four-wire or five-wire touch panel, and accordingly, the upper portion of the upper plate 11 is touched. When the window area is touched with a finger, pen, or the like, the corresponding signal is transmitted to the FPC 19 so that the x and y coordinates of the touched position can be interpreted. Here, the FPC 19 may come out to the rear side through a predetermined through hole provided in the transparent injection molding 30 and be connected to a main body of the mobile device, for example, a signal processing module, but is not limited thereto. As described below, a signal is applied to signal connection terminals formed to be connected in a wiring form to the four corners of the transparent conductive film 15 and the like and other positions on the transparent injection molded product 30 to change the signal. It is also possible to bond the FPC 19 on the side or back so that measurements can be made so that the signal processing module can read the signal corresponding to the touch position, for example voltage or current.

3, 5, 7, 9, and 11 structure, the hard coating or anti-reflection coating to increase the hardness of the surface in the touch window area of the front surface of the top plate 11 combined with the injection molding, or Additional functional coatings for the door can be applied.

In addition, in order to improve the mechanical properties such as the adhesive strength of the transparent conductive film 12/15 formed on the upper plate or the lower plate, or the electrical properties such as conductivity, before forming the transparent conductive film 12/15 as described above, It is preferable to form the SiOx-based buffer layer first, and then to form the transparent conductive film 12/15.

13 is a view for explaining the front bonding structure of the FPC 31 according to an embodiment of the present invention. As shown in FIG. 13, signal connection terminals in the form of wiring electrodes connected to the transparent conductive film 15 or the equipotential forming electrode 16 on the lower plate 14 (or the transparent injection molding 30 in FIG. 10) are directed upwards to the lower plate 14. And the FPC 31 can be pulled down to the rear by bonding the signal connection terminals and the FPC 31 thereon.

In addition, as shown in FIG. 14, the FPC 32 may be bonded to the wiring electrodes of the signal connection terminals extending to the side of the lower plate 14 (or the transparent injection molding 30 in FIG. 10). Due to the side bonding structure of the FPC 32, as shown in FIG. 13, the upper plate 11 (or the touch window area of the transparent injection molding 30 in the case of FIG. 31) It can be thicker than the remaining area by thickness to reduce the possibility of appearance defects.

And, as shown in FIG. 15, the wiring electrodes 16 for the signal connection terminals of the lower plate 14 (or the transparent injection molding 30 in FIG. 10) of the FPC 33 are dispensed to the rear surface of the lower plate 14. ) May be bonded to the electrodes. By using a paste of a conductive material such as Ag for dispensing, the wiring electrodes 16 may extend to the bottom of the lower plate 14 to be electrically connected to the FPC 33. By the bonding structure, as shown in FIG. 14 above, maintaining the flatness when laminating further reduces the possibility of poor appearance.

FIG. 16 is a front schematic view of the entire 5-wire resistive touch screen for explaining the side bonding structure of the FPC as shown in FIG. 14. 17 is a cross-sectional view taken along line AA ′ of FIG. 16. Referring to FIGS. 16 and 17, the wiring electrodes 51 of the front signal connection terminals formed to be connected in a wiring form to four corners of the transparent conductive film 15 and the like on the lower plate 14 and the right center and the like. ) Is collected at the right end of the lower plate 14 and extended to the side by printing or vapor deposition using a conductive paste or the like, and then the FPC 32 may be bonded at the side of the lower plate 14. Here, although the case in which the wiring electrodes 51 extend from the right end of the lower plate 14 has been described, the present invention is not limited thereto. In addition, the wiring electrode may be disposed to the left side, the upper side, or the lower side of the lower plate 14 as necessary. The field 51 can be extended to bond the FPC 32.

FIG. 18 is a schematic rear view of the entire 5-wire resistive touch screen for describing the back bonding structure of the FPC as shown in FIG. 15. FIG. 19 is a cross-sectional view taken along line BB ′ of FIG. 18. 20 is a cross-sectional view taken along line CC ′ of FIG. 18. 18 to 19, conductive paste is used at four corners of the transparent conductive film 15 and the like on the right side of the lower plate 14 and at the dispensing positions such as the corners and the right edges at positions of the right center and the like. After the signal connection terminals are extended to the rear surface of the lower plate 14, the FPC 33 is attached to the wiring electrodes 52 of the signal connection terminals collected by wiring to the right end or the like on the rear surface of the lower plate 14. Bonding can be performed on the back side 14).

FIG. 21 is a diagram for describing a case in which the side bonding structure of the FPC shown in FIG. 14 is applied to a 4-wire resistive touch screen. FIG. 22 is a cross-sectional view taken along line D-D 'of FIG. 21. Referring to FIGS. 21 and 22, the wiring electrodes of the signal connection terminals for the x or y coordinates formed to be connected to the transparent conductive film 12 of the upper plate 11 or the two corners of the equipotential forming electrode in a wiring form ( 61, 62 and wiring electrodes of the signal connection terminals for the remaining x or y coordinates which are formed to be connected in wiring form to the two corners of the transparent conductive film 15 or the equipotential forming electrode 16 of the lower plate 14 ( 71 and 72 may be collected at the right end of the lower plate 14 and extended to the side by a printing or deposition method using a conductive paste or the like, and then the FPC 32 may be bonded on the side of the lower plate 14. Here, the wiring electrodes 61 and 62 of the upper plate 11 may be electrically connected to an electrode on the lower plate 14 by a dispensing hole or the like as shown in FIG. 1.

FIG. 23 is a view for explaining an example of the rear view when the back bonding structure of the FPC as shown in FIG. 15 is applied to a 4-wire resistive touch screen. FIG. 24 is a diagram for describing another example of the rear view when the back bonding structure of the FPC shown in FIG. 15 is applied to a 4-wire resistive touch screen. FIG. 25 is a cross-sectional view taken along line E-E 'of FIGS. 23 and 24.

As shown in the rear view of FIG. 23, the signal connection terminals are connected from the corresponding positions on the front of the lower plate 14 (XL and XR positions for the x coordinate and YU and YB for the y coordinate) to the rear surface of the lower plate 14 by using a conductive paste. After dispensing so as to extend, the FPC 33 may be bonded on the rear surface of the lower plate 14 to the wiring electrodes 81 of the signal connection terminals collected by wiring to the right end of the bottom surface of the lower plate 14 or the like. Alternatively, as shown in the rear view of FIG. 24, the wiring electrodes 81 of the signal connection terminals are wired and collected at the right end and the like from the front of the lower plate 14, and then the signal connection terminals are connected to the rear surface of the lower plate 14 by using a conductive paste. After dispensing them, the FPC 33 may be bonded to the bottom of the lower plate 14 to the electrodes in the form of short pads without additional wiring on the back surface.

As described above, by applying a 4-wire or 5-wire resistive touch panel to a plastic instrument such as the injection molding 13, the durability and reliability of the touch screen mechanism can be enhanced, and handwriting recognition that cannot be realized in the capacitive method And, it is possible to implement the touch window to the curved surface by using the effect of preventing the malfunction due to the minute contact and the existing resistive film method, it is possible to eliminate the connection with the front injection molding to fix the existing flat touch window, It can eliminate the damage of flat panel touch window caused by contaminants and moisture ingress or noise caused by leakage current, etc., and maximize design freedom. Accordingly, the touch screen of the present invention may be mounted on a mobile device or the like to efficiently use a touch window that combines a display window function and a touch sensing function.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

1 is a schematic cross-sectional view of a conventional resistive touch screen mechanism.

2 is a view for explaining the structure of the 5-wire resistive touch panel applied to the present invention.

3 is an exploded view illustrating an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to an embodiment of the present invention.

4 is a view for explaining the assembly of the disassembled components of FIG.

FIG. 5 is an exploded view illustrating an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to another embodiment of the present invention.

6 is a view for explaining the assembly of the disassembled components of FIG.

7 is a view for explaining an exploded view of an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to another embodiment of the present invention.

8 is a view for explaining the assembly of the disassembled components of FIG.

FIG. 9 is an exploded view illustrating an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to another embodiment of the present invention.

10 is a view for explaining the assembly of the disassembled components of FIG.

FIG. 11 is an exploded view illustrating an injection molding product to which a touch screen is applied to realize a touch window structure applied to the injection molding according to another embodiment of the present invention.

12 is a view for explaining the assembly of the disassembled components of FIG.

13 is a view for explaining a bonding structure of the FPC according to an embodiment of the present invention.

14 is a diagram for explaining a bonding structure of an FPC according to another embodiment of the present invention.

FIG. 15 is a diagram for describing a bonding structure of an FPC according to another embodiment of the present invention. FIG.

FIG. 16 is a front schematic view of the entire 5-wire resistive touch screen for explaining the side bonding structure of the FPC as shown in FIG. 14.

17 is a cross-sectional view taken along line AA ′ of FIG. 16.

FIG. 18 is a schematic rear view of the entire 5-wire resistive touch screen for describing the back bonding structure of the FPC as shown in FIG. 15.

FIG. 19 is a cross-sectional view taken along line BB ′ of FIG. 18.

20 is a cross-sectional view taken along line CC ′ of FIG. 18.

FIG. 21 is a diagram for describing a case in which the side bonding structure of the FPC shown in FIG. 14 is applied to a 4-wire resistive touch screen.

FIG. 22 is a cross-sectional view taken along line D-D 'of FIG. 21.

FIG. 23 is a view for explaining an example in which the back bonding structure of the FPC as shown in FIG. 15 is applied to a 4-wire resistive touch screen.

FIG. 24 is a diagram for describing another example of applying the back bonding structure of the FPC as shown in FIG. 15 to a 4-wire resistive touch screen.

FIG. 25 is a cross-sectional view taken along line E-E 'of FIGS. 23 and 24.

<Explanation of symbols for main parts of the drawings>

11: tops

12: transparent conductive film

13: injection molding

14: bottom plate

15: transparent conductive film

16: Equipotential forming electrode / wiring electrode

17: dot spacer

18: insulation layer

19: FPC

Claims (24)

In the method of manufacturing a touch screen applying a resistive touch panel to the injection molding, Forming a transparent conductive film in the touch window area of the light transmissive film used as the top plate of the touch panel, or preparing a light transmissive film for the top plate of the touch panel in which the transparent conductive film is formed in advance; Injecting a molten resin into a region other than a predetermined region including the touch window region of the light-transmissive film to form an injection molded product bonded to the light-transmissive film; And Bonding the lower plate of the touch panel and the light-transmitting film bonded to the injection molded product; Touch screen manufacturing method comprising a. In the method of manufacturing a touch screen applying a resistive touch panel to the injection molding, Forming an injection molded product bonded to the translucent film by injecting a molten resin into a region other than a predetermined region including a touch window region of the translucent film used as a top plate of the touch panel; Forming a transparent conductive film in a touch window area of the light transmissive film bonded to the injection molded product; And Combining the transparent plate on which the transparent conductive film is formed and the lower plate of the touch panel Touch screen manufacturing method comprising a. In the method of manufacturing a touch screen applying a resistive touch panel to the injection molding, Injecting the molten resin into the light-transmissive film so as to have a smaller thickness in the touch window area than the periphery to form an injection-bonded material in the light-transmissive film; Forming a transparent conductive film on an inner side of the touch window area of the injection molded product used as a top plate of the touch panel; And Bonding the lower plate of the touch panel and the injection molded product having the transparent conductive film formed thereon; Touch screen manufacturing method comprising a. The method of claim 3, And a thickness of the touch window area of the injection molded product is 50 micrometers or more and 1 millimeters or less. The method of claim 3, Removing the light-transmitting film bonded to the injection molding Touch screen manufacturing method characterized in that it further comprises. The method of claim 5, wherein after the removing step: Curing the paint remaining on the surface of the injection molding Touch screen manufacturing method characterized in that it further comprises. In the method of manufacturing a touch screen applying a resistive touch panel to the injection molding, Forming a transparent conductive film in the touch window area of the light transmissive film used as the top plate of the touch panel, or preparing a light transmissive film for the top plate of the touch panel in which the transparent conductive film is formed in advance; Forming an element for a touch panel on the groove using an injection molded product having a groove in the touch window area as a lower plate of the touch panel; And Combining the translucent film on which the transparent conductive film is formed and the injection molded material on which the elements for the touch panel are formed; Touch screen manufacturing method comprising a. The method of claim 7, wherein the depth of the groove is 2 mm or less. In the method of manufacturing a touch screen applying a resistive touch panel to the injection molding, Manufacturing an upper plate and a lower plate of the touch panel; And Coupling the lower plate of the touch panel onto the groove and combining the upper plate on the lower plate by using an injection molding having a groove in the touch window area Touch screen manufacturing method comprising a. The method according to any one of claims 1, 2, 3, 7, or 9, Forming a predetermined electrode on the transparent conductive film formed on the upper plate Touch screen manufacturing method characterized in that it further comprises. The method according to any one of claims 1, 2, 3, 7, or 9, The touch panel is a touch screen manufacturing method, characterized in that the 4-wire or 5-wire resistive film. The method according to any one of claims 1, 2, 3, 7, or 9, Connecting an FPC to a plurality of wiring electrodes included in the touch panel; The FPC may be connected to the plurality of wiring electrodes formed on the front surface of the lower plate, the plurality of wiring electrodes extending to the side surface of the lower plate, or the plurality of wiring electrodes may be disposed on the rear surface of the lower plate. A touch screen manufacturing method, characterized in that connected to the fencing electrodes. The method according to any one of claims 1, 2, 3, 7, or 9, Forming a coating, anti-fingerprint coating, or AR coating on the front of the top plate to increase the surface hardness Touch screen manufacturing method comprising a. The method according to any one of claims 1, 2, 3, 7, or 9, The transparent conductive film formed on the upper plate is a touch screen manufacturing method, characterized in that formed using TCO, ITO, half mirror using a metal thin film, or a conductive polymer. The method according to any one of claims 1, 2, 3, 7, or 9, And a acrylate-based or SiOx-based buffer layer formed on the top plate to improve the mechanical or electrical properties of the transparent conductive film formed on the top plate. In the touch screen applying the resistive touch panel to the injection molding, By using a film in which a transparent conductive film is formed in the touch window region of the light transmissive film or a light transmissive film in which a transparent conductive film is formed in advance, Injecting the molten resin to the light-transmissive film by injecting a molten resin in a region other than a predetermined region including the touch window area of the light-transmitting film, And a lower plate of the touch panel and the light-transmitting film bonded to the injection molded product. In the touch screen applying the resistive touch panel to the injection molding, By using the light-transmissive film as a top plate of the touch panel, the molten resin is injected into a region other than a predetermined region including the touch window region of the light-transmissive film to bond the injection-molded product to the light-transmissive film, Forming a transparent conductive film in a touch window area of the light transmissive film bonded to the injection molded product, And a bottom plate of the touch panel and the transparent film having the transparent conductive film formed thereon. In the touch screen applying the resistive touch panel to the injection molding, The molten resin is injected into the light-transmissive film to have a smaller thickness in the touch window area than the periphery to bond the injection-molded material to the light-transmissive film, By using the injection molding as a top plate of the touch panel to form a transparent conductive film inside the touch window area of the injection molding, And a lower plate of the touch panel and the injection molded product having the transparent conductive film formed thereon. The method of claim 18, And removing the translucent film bonded to the injection molding. The touch screen as set forth in claim 19, wherein the paint remaining on the surface of the injection molded product is cured after removing the translucent film. In the touch screen applying the resistive touch panel to the injection molding, By using a film having a transparent conductive film formed on the touch window area of the light transmissive film or a translucent film having a transparent conductive film pre-formed as a top plate of the touch panel, Forming elements for the touch panel on the groove by using an injection molded product having a groove in the touch window area as a lower plate of the touch panel, And the light-transmitting film having the transparent conductive film formed thereon and the injection-molded product having elements for the touch panel formed thereon. The touch screen of claim 21, wherein the depth of the grooves is 2 millimeters or less. In the touch screen applying the resistive touch panel to the injection molding, Combining the lower plate of the touch panel on the groove and the upper plate of the touch panel on the lower plate by using an injection molding having a groove in the touch window area. Touch screen characterized in that. The method according to any one of claims 16 to 23, wherein An FPC connected to a plurality of wiring electrodes included in the touch panel, The FPC is connected to the plurality of wiring electrodes formed on the front surface of the lower plate, Connected to the plurality of wiring electrodes extending to the side surface of the lower plate, or And the plurality of wiring electrodes are connected to electrodes dispensed to the rear surface of the lower plate.
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