JP2008262289A - Protection panel with touch input function for electronic equipment display window - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protection panel with touch input function for an electronic equipment display window, which is designed to be perfectly seamless (no seam) at the peripheries of a screen see-through input part and a key input part, easy to wipe off dirt such as oils and fats, and designed to have no pattern shift at the periphery of the key input part. <P>SOLUTION: In this protection panel with touch input function for the electronic equipment display window, a protection panel main body has a rectangular lower transparent electrode on the upper face, and a lower circuit provided around the lower transparent electrode, and is bonded to an upper electrode sheet formed with an upper transparent electrode and contacts for input keys on the lower face facing the lower transparent electrode through an air layer. A transparent window part is configured with the screen see-through input part by overlap of the upper transparent electrode and the lower transparent electrode, and a part except the transparent window part is configured with the key input part by overlap of the upper transparent electrode and the contacts for the input keys. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a protection panel with a touch input function that is used for applications such as mobile phones, smart phones, and PDAs.

  2. Description of the Related Art Conventionally, some electronic devices such as a mobile phone, a smartphone, and a PDA are capable of screen perspective input by mounting an analog resistive film type touch panel on the front surface of the display 20. The touch panel 100 includes a lower electric sheet 105 having a rectangular lower transparent electrode 107 and a lower circuit provided around the lower transparent electrode 107 on the upper surface of the transparent insulating film, and a rectangular upper transparent electrode on the lower surface of the transparent insulating film. An electrode 106 and an upper circuit provided around the upper transparent electrode 106 so as to form a gap between the lower electrode sheet 105 and at least the electrode (for example, via an insulating sheet 104 having a hole). ) It is provided with the bonded upper electrode sheet 103 and the FPC 110 which is inserted from the side between the electrode sheets 103 and 105 to extract an electric signal, and indicates the screen while seeing through the screen of the display 20 behind. By pressing from above with a pen or the like, the transparent electrodes 106 and 107 are electrically connected, and coordinate input (press position detection) ) Is carried out.

  In addition, the electronic device is usually equipped with a mechanical switch such as a keypad or a membrane switch, and a numeric keypad such as numerals and alphabets can be input separately from the screen fluoroscopic input.

  However, in the case where a screen fluoroscopy input device and a numeric keypad input device are separately provided in this way, there are problems that control parts are required and that it is difficult to reduce the size and thickness of electronic devices. .

  Therefore, in paragraph 0048 of Patent Document 1, the lower circuit of the touch panel 100 has a pair of lower bus bars 108a and 108b arranged on two parallel sides of the lower transparent electrode 107, and the upper circuit is the upper transparent electrode. A pair of upper bus bars 109a and 109b arranged in parallel to the lower bus bars 108a and 108b in the direction perpendicular to the lower bus bars 108a and 108b, and connected to at least one of the upper bus bars 109a and 109b via an extension line portion 109c; An input key contact 109d that forms a gap between the lower transparent electrode 107 and the screen of the display 20 disposed behind by overlapping the lower transparent electrode 107 and the upper transparent electrode 106. The lower transparent electrode 1 constitutes a so-called screen see-through input unit that can be input while seeing through. 7 and the input key contact 109d are configured to form a key input unit that can be substituted for a membrane switch, thereby controlling the screen fluoroscopic input and the key input with a single controller (FIG. 9). reference). In FIG. 9, reference numeral 104a denotes a screen fluoroscopy input part hole, and 104b denotes a key input part hole.

JP 2002-202849 A

  However, a casing in an electronic device such as a mobile phone, a smartphone, or a PDA is configured by combining a front casing 102b and a rear casing 102a made of synthetic resin, and input to the built-in touch panel is provided in the front casing 102b. This is done through the provided opening. For example, as shown in FIG. 7, when the key sheet 101 is arranged on the front surface of the key input unit of the touch panel 100, the front casing 102 b is provided with a fluoroscopic input opening 111 and each key input unit with a ridge 113. A plurality of isolated key input openings 112 are provided. Further, as shown in FIG. 8, when a printing unit 100a such as a numeric keypad is formed on the front surface of the key input unit of the touch panel 100, the front casing 102b has a transparent input opening 111 and a plurality of key inputs. A key input opening 114 corresponding to the entire unit is provided.

  That is, in the case of the electronic apparatus having the configuration shown in FIG. 8, a step corresponding to the thickness of the front casing 102b is provided between the outer surface of the front casing 102b and the input surface of the screen see-through input unit and the input surface of the key input unit. Exists. Also in the case of the electronic apparatus having the configuration shown in FIG. 7, there is a gap for smoothly moving each key of the key sheet 101 up and down around each key input unit. Therefore, in any case, the design is poor in the sense of unity of the screen fluoroscopy input unit, the key input unit, and the casing portion surrounding them.

  Since the front casing 102b is a separate member from both the printing unit 100a formed on the touch panel 100 in FIG. 8 and the key sheet 101 in FIG. 7, the outer surface of the front casing 102b and the input surface of the key input unit If a continuous pattern with no distinction is provided, registration errors are likely to occur due to assembly errors. In other words, the design is poor in the sense of unity between the key input part and the casing part surrounding the key input part.

  Further, in the case of the electronic apparatus having the configuration shown in FIG. 8, when the dirt such as oil and fat adhering to the input surface of the screen see-through input unit and the input surface of the key input unit is wiped off, the front casing 102b It is difficult to completely wipe the vicinity of the fluoroscopic input opening 111 and the key input opening 114. Also, in the case of the electronic device having the configuration shown in FIG. 7, since the gap exists, dirt is accumulated in the gap due to the wiping action.

  In consideration of the above-described problems of the prior art, the present invention allows the screen fluoroscopic input part and the key input part to be designed to be completely seamless (seamless) around them and easily wipe off dirt such as oil and fat. In addition, the present invention provides a protection panel with a touch input function for an electronic device display window that allows a design with no misregistration between the surroundings of the key input part and the handle.

The present invention comprises a lower electrode panel having a rectangular lower transparent electrode and a lower circuit provided around the lower transparent electrode on the upper surface of a non-flexible protective panel body,
An upper part having a rectangular upper transparent electrode and an upper circuit provided around the upper transparent electrode on the lower surface of the flexible transparent insulating film, and being bonded to form a gap between the lower electrode panel and the electrode An electrode sheet;
A decorative sheet that has a decorative layer that conceals the lower circuit and the upper circuit to form a transparent window portion on at least one surface of a flexible transparent insulating film, and is bonded to the upper surface of the upper electrode sheet; ,
An FPC with a pin for extracting an electrical signal through a through hole provided in the lower electrode panel;
A display that is configured to be fitted and held in a panel fitting portion of a casing having an opening without gap so that its outer surface forms the same plane, and is disposed on the lower side so as to be visible from the outside through the transparent window portion. A protection panel with a touch input function of an electronic device display window for protecting the device,
The lower circuit has a pair of lower bus bars disposed on two parallel sides of the lower transparent electrode;
The upper circuit is connected to a pair of upper bus bars disposed on two sides parallel to the upper transparent electrode and perpendicular to the lower bus bar, and is connected to at least one of the upper bus bars via an extension line, and further There are two or more input key contacts that do not exist on the same line parallel to the bus bar and that form a gap with the lower transparent electrode,
The screen transparent input portion is configured in the transparent window portion by overlapping the lower transparent electrode and the upper transparent electrode,
A key input portion is configured at a place other than the transparent window portion by overlapping the lower transparent electrode and the input key contact.

Further, the present invention provides a lower electrode panel having a rectangular lower transparent electrode and a lower circuit provided around the lower transparent electrode on the upper surface of the inflexible protective panel body,
An upper part having a rectangular upper transparent electrode and an upper circuit provided around the upper transparent electrode on the lower surface of the flexible transparent insulating film, and being bonded to form a gap between the lower electrode panel and the electrode An electrode sheet;
A decorative sheet that has a decorative layer that conceals the lower circuit and the upper circuit to form a transparent window portion on at least one surface of a flexible transparent insulating film, and is bonded to the upper surface of the upper electrode sheet; ,
An FPC with a pin for extracting an electrical signal through a through hole provided in the lower electrode panel;
A display that is configured to be fitted and held in a panel fitting portion of a casing having an opening without gap so that its outer surface forms the same plane, and is disposed on the lower side so as to be visible from the outside through the transparent window portion. A protection panel with a touch input function of an electronic device display window for protecting the device,
The upper circuit has a pair of upper bus bars disposed on two parallel sides of the upper transparent electrode;
The lower circuit is connected to a pair of lower bus bars arranged on two sides parallel to the lower transparent electrode and perpendicular to the upper bus bar, and is connected to at least one of the lower bus bars via an extension line portion, and further There is an input key contact that does not exist two or more on the same line parallel to the bus bar and forms a gap with the upper transparent electrode,
While configuring the transparent see-through input portion in the transparent window portion by overlapping the upper transparent electrode and the lower transparent electrode,
A key input portion is configured at a place other than the transparent window portion by overlapping the upper transparent electrode and the input key contact.

  In each of the above configurations, a plurality of the key input units are arranged to form a numeric keypad.

  The protection panel with a touch input function of the electronic device display window of the present invention is such that the protection panel body has a rectangular lower transparent electrode on the upper surface and a lower circuit provided around the lower transparent electrode, and an air layer An upper electrode sheet having an upper transparent electrode and an input key contact formed on the lower surface facing the lower transparent electrode is bonded to the transparent window by overlapping the upper transparent electrode and the lower transparent electrode. Since the screen transparent input part is configured in the part and the key input part is configured in a place other than the transparent window part by overlapping the upper transparent electrode and the input key contact, the screen is provided on the front surface of the protection panel body. There are two types of touch input functions: perspective input and key input. Therefore, by inserting the protective panel into a panel fitting portion of a casing having an opening of an electronic device such as a mobile phone, screen perspective input and key input can be performed on the outer surface of the electronic device.

  In this case, there is no step between the screen fluoroscopy input part, the key input part and other parts on the outer surface of the protective panel, and there is no gap around the key input part. A design that is completely seamless (seamless) and excellent in the shape and unity of the surroundings can be obtained.

  In addition, since the decoration on the outer surface of the protective panel is performed only with a decorative sheet, that is, with only one member, even when a continuous pattern is provided over the entire area excluding the transparent window portion, there is no misregistration. A design with an excellent sense of unity can be obtained (see FIG. 5).

  In addition, there are no steps between the screen perspective input part, key input part and other parts on the outer surface of the protective panel, and there is no gap around the key input part. Easy to wipe off.

  Hereinafter, the present invention will be described in detail based on the embodiments shown in the drawings.

  FIG. 1 is a perspective view showing an example of use of a protection panel 1 with a touch input function of an electronic device display window according to the present invention. 2 and 6 are diagrams for explaining the relationship between the protection panel 1 with a touch input function of the electronic device display window and the product in each of the AA cross section and the BB cross section of FIG.

  The protection panel 1 with a touch input function of the electronic device display window of FIG. 1 is fitted into the panel fitting portion of the casing 19 having an opening without any gap so that the outer surface thereof is flush with each other (see FIGS. 2 and 6). The display 20 is configured to be able to be held and can be protected from the outside through the transparent window so as to be visible from the outside.

  FIG. 3 is an exploded perspective view showing an embodiment of the configuration of the protection panel with a touch input function of the electronic device display window according to the present invention.

  In the figure, a protection panel 1 with a touch input function for an electronic device display window includes a rectangular lower transparent electrode 5 on an upper surface of a non-flexible protection panel main body 3a and a lower circuit provided around the lower transparent electrode. A lower electrode panel 3 having a rectangular shape, an upper electrode sheet 2a having a rectangular upper transparent electrode 4 on the lower surface of the flexible transparent insulating film, and an upper circuit provided around the upper transparent electrode, and a flexible electrode. And a decorative sheet 2b having a decorative layer that conceals the lower circuit and the upper circuit to form a transparent window portion 18 on at least one surface of the transparent insulating film. The upper electrode sheet 2a and the decorative sheet 2b are bonded together to form the movable sheet 2, as will be described later.

  The upper electrode sheet 2a and the lower electrode panel 3 are bonded with a double-sided adhesive tape (transparent insulating sheet 8) by forming a gap (air layer) between the electrodes 4 and 5, and the decorative sheet 2b is bonded to the upper part. It is bonded to the upper surface of the electrode sheet 2a with a transparent adhesive (not shown).

  Usually, a spacer 9 is provided between the upper electrode sheet 2a and the lower electrode panel 3 so that the electrodes 4 and 5 provided on the respective opposing surfaces are not in contact with each other. , 5 can be omitted, the spacer 9 can be omitted. The spacer 9 can be obtained by forming a transparent photocurable resin into fine dots by a photo process. Also, the spacer 9 can be formed by forming a large number of fine dots by a printing method.

  As the material of the inflexible protective panel main body of the lower electrode panel 3, a material that has excellent transparency and can protect the display 20 such as a liquid crystal panel or an organic EL panel from being damaged is used. For example, methacrylic resin (PMMA), acrylonitrile-styrene copolymer resin (AS), acrylonitrile-butadiene-styrene copolymer resin (ABS), cellulose propine auto resin, polycarbonate resin (PC), polystyrene resin (PS) ), Plastic plates such as polyester resin and polyethylene resin, and the like can be used. In particular, methacrylate (PMMA) is excellent in transparency. Further, a glass plate may be used.

  Further, on the surface on which the lower transparent electrode 5 of these plates is formed, a film of engineering plastic such as polycarbonate, polyamide, or polyether ketone, acrylic, polyethylene terephthalate, or polybutylene terephthalate is used. The lower transparent electrode 5 may be bonded to the lower electrode panel 3 through the film.

  Examples of the material of the flexible transparent insulating film of the upper electrode sheet 2a include engineering plastics such as polycarbonate, polyamide, or polyether ketone, acrylic, polyethylene terephthalate, or polybutylene. A terephthalate film or the like can be used.

  The transparent electrodes 4 and 5 are mainly composed of metal oxide films such as tin oxide, indium oxide, antimony oxide, zinc oxide, cadmium oxide, or indium tin oxide (ITO), or these metal oxides. Not required after a composite film or a metal film such as gold, silver, copper, tin, nickel, aluminum, or palladium is formed on a transparent conductive film by vacuum deposition, sputtering, ion plating, or CVD. These portions are removed by etching to form a rectangular shape. For etching, after forming a resist on the part that you want to leave as an electrode by photolithography or screen printing, immerse it in an etching solution such as hydrochloric acid or spray the etching solution to remove the transparent conductive film in the part where the resist is not formed. By removing the resist and then immersing it in a solvent, the resist is removed or dissolved to be removed. Etching with a laser is also possible.

  In the upper electrode sheet 2a and the lower electrode panel 3, bus bars 6a, 6b, 7a, 7b and predetermined lines such as lead lines omitted in the drawing are provided on the same surface as the upper transparent electrode 4 and the upper transparent electrode 5. A pattern circuit is formed and output to the outside by the FPC 10 with a pin through a through hole provided in the lower electrode panel 3 by a drill or a press. The lead line forming pattern may be formed in any manner as long as it is connected to the pinned FPC 10.

  The touch input function of the protective panel 1 according to the present invention includes a pair of lower bus bars 6a and 6b in which the lower circuit is disposed on two parallel sides of the lower transparent electrode 5, and the upper circuit is the upper transparent electrode. A pair of upper bus bars 7a, 7b disposed on two parallel sides and perpendicular to the lower bus bars 6a, 6b, and connected to at least one of the upper bus bars 7a, 7b via an extension line portion 7c; The input key contact 7d that forms a gap between the lower transparent electrode 5 and a screen transparent input portion in the transparent window portion 18 due to the overlap of the lower transparent electrode 5 and the upper transparent electrode 4. (I) and a key input portion (ii) is formed at a place other than the transparent window portion 18 by overlapping the lower transparent electrode 5 and the input key contact 7d. In which it is possible to control the key input in one controller. Further, since the number of wires is small with a simple circuit structure, the transparent window portion 18 can be very close to the outer diameter of the protective panel 1, and so-called narrow frame can be achieved.

  More specifically, the detection principle in the screen fluoroscopy input unit (i) is the same as that of a so-called analog resistive film type touch panel. In other words, the X coordinate is detected by applying a DC voltage between the lower bus bars 6a and 6b to create a potential gradient in the X direction due to the resistance of the lower transparent electrode 5, and by detecting the potential at the contact point through the upper transparent electrode 4 side, it is divided by voltage. The X coordinate of the pressed point can be known, while the Y coordinate can be detected by applying a DC voltage between the upper bus bars 7a and 7b to create a potential gradient in the Y direction due to the resistance of the upper transparent electrode 4, and the potential at the contact point is transparent below. When detected through the electrode 5 side, the Y-coordinate of the pressed point is known by the partial pressure.

  On the other hand, the detection principle in the key input unit (ii) will be described using the example of the numeric keypad shown in FIG. 4. First, a DC voltage is applied between the upper bus bars 7a and 7b to form a potential gradient. If a voltage is applied so that the upper bus bar 7a is at 0V and the upper bus bar 7b is at 5V, the output potential of the numeric keypad portion is almost 0V. Next, the switch is switched so that a DC voltage is applied between the lower bus bars 6a and 6b. If a voltage is applied so that the lower bus bar 6b is at 0V and the lower bus bar 6a is at 5V, X1-> X4-> X7-> X *-> X2-> in FIG. The output voltage increases in the order of display). Although the Y-coordinate output potentials of the numeric keypad are all the same, the X-coordinate output potential is different for each key, so that each key coordinate is assigned in advance on the software side. By comparing and referring to the assigned data and the output data, it is possible to know which key is being pressed.

  As shown in FIGS. 1, 3 and 5, a plurality of key input units (ii) can be arranged to form a numeric keypad. However, when a plurality of the key input portions (ii) are arranged, the input key contacts 7d are formed so that there are no two or more on the same line parallel to the lower bus bar because of the detection principle. There must be. In FIG. 4, the lower bus bars 6a and 6b are provided in parallel with the Y direction, and the upper bus bars 7a and 7b are provided in parallel with the X direction. Conversely, the lower bus bars 6a and 6b are provided in parallel with the X direction. 7b may be provided in the Y direction.

  The material of the upper circuit and the lower circuit is made of a metal such as gold, silver, copper, or nickel, or a conductive paste such as carbon, and is composed of screen printing, offset printing, gravure printing, or flexographic printing. It can be formed by a printing method such as printing, a photoresist method, or a brush coating method.

  The decorative sheet 2b is a flexible transparent insulating film, such as polycarbonate, polyamide, or polyether ketone engineering plastic, acrylic, polyethylene terephthal, or polybutylene terephthal. A decorative layer is formed with a pattern 17 on one side of the film so as to conceal the periphery of the transparent window 18, that is, the upper circuit and the lower circuit.

The decorative layer is made of a resin such as polyvinyl resin, polyamide resin, polyester resin, polyacrylic resin, polyurethane resin, polyvinyl acetal resin, polyester urethane resin, or alkyd resin as a binder. Colored inks containing various color pigments or dyes as colorants may be used. As a method for forming the decorative layer, a normal printing method such as screen printing, offset printing, gravure printing, or flexographic printing may be used. In particular, the offset printing method and the gravure printing method are suitable for performing multicolor printing and gradation expression.

  The decorative layer may be composed of a metal thin film layer or a combination of a pattern printing layer and a metal thin film layer. The metal thin film layer expresses metallic luster as the decorative layer, and is formed by a vacuum deposition method, a sputtering method, an ion plating method, a plating method, or the like. In this case, a metal such as aluminum, nickel, gold, platinum, chromium iron, copper, tin, indium, silver, titanium, lead, or zinc, or an alloy or compound thereof is used depending on the metallic luster color to be expressed. use. The film thickness of the metal thin film layer is generally about 0.05 μm. Moreover, when providing a metal thin film layer, in order to improve adhesiveness with another layer, you may provide a front anchor layer and a rear anchor layer.

  A hard coat film may be bonded to the surface of the decorative sheet 2b.

  With this configuration, the protection panel 1 has a touch input function on the front surface of the protection panel main body 3a, and the protection panel 1 has an opening of an electronic device such as a mobile phone as shown in FIG. By fitting into the panel fitting portion of the casing, screen perspective input and key input on the outer surface of the electronic device are possible.

  In this case, there is no step between the screen fluoroscopy input part (i), the key input part (ii) and the other parts on the outer surface of the protective panel 1, and there is also a gap around the key input part (ii). Therefore, the screen fluoroscopy input part (i) and the key input part (ii) have a completely seamless (seamless) shape-excellent design with excellent surroundings.

  Moreover, since the decoration of the outer surface of the protective panel 1 is performed only by the decorative sheet 2b, that is, by only one member, even when a continuous pattern is provided over the entire area excluding the transparent window portion 18, misregistration occurs. Therefore, a design excellent in pattern unity can be obtained (see FIG. 5).

  Further, there is no step between the screen fluoroscopy input part (i), the key input part (ii) and other parts on the outer surface of the protective panel 1, and there is no gap around the key input part (ii). It is easy to wipe off dirt such as oil and fat that adheres due to input.

  Although the configuration of the protective panel 1 has been described with reference to FIG. 3 so far, the pattern of the upper transparent electrode and upper circuit of the upper electrode sheet 2a and the pattern of the lower transparent electrode and lower circuit of the lower electrode panel 3 are described. And may be replaced. That is, the protection panel with a touch input function of the electronic device display window of the present invention has a pair of upper bus bars in which the upper circuit is disposed on two parallel sides of the upper transparent electrode, and the lower circuit is parallel to the lower transparent electrode. A pair of lower bus bars arranged on two sides in the vertical direction with respect to the upper bus bar, and connected to at least one of the lower bus bars via an extension line portion, and more than two on the same line parallel to the upper bus bar And having an input key contact that forms a gap between the upper transparent electrode and the upper transparent electrode, and the upper transparent electrode and the lower transparent electrode overlap to form a screen see-through input portion in the transparent window portion. In addition, a key input portion can be configured at a place other than the transparent window portion by overlapping the upper transparent electrode and the input key contact.

<Example 1>
An ITO film with a thickness of 20 nm is formed on the entire surface of a transparent insulating film made of a roll-shaped polycarbonate (PC) film having a thickness of 100 μm by sputtering, and unnecessary portions of the ITO film are removed by etching to remove screen transparency. A lower transparent electrode having a rectangular shape was formed across the part (i) and the key input part (ii). Next, a fine dod-like spacer was formed on the entire surface of the lower transparent electrode by screen printing using an epoxy acrylate thermosetting resin. Further, a lower bus bar disposed on two sides facing the vertical direction of the lower transparent electrode and a lead line for outputting to the outside from the lower bus bar were formed by screen printing silver paste as a lower circuit. Next, a number of fine dots were formed by screen printing to form spacers. Finally, a shield layer was screen printed so as to protect the insulation of the lower circuit, and then cut into a vertically long sheet having a predetermined size.

  Also, a polycarbonate plate having the same dimensions as the PC film and a thickness of 1.0 mm is bonded to the surface of the PC film opposite to the surface on which the lower transparent electrode is formed with a transparent adhesive made of PSA having a thickness of 0.025 mm. Thereafter, four through-holes with a diameter of 1 mm for inserting the pin shaft of the FPC with pins at the edge portion were aligned and drilled in a row by a drill method to obtain a lower electrode panel.

  Moreover, a flexible transparent insulating film made of a polyethylene terephthalate (PET) film having a thickness of 188 μm is used, and an ITO film having a thickness of 20 nm is formed on the entire surface by sputtering, and the length and width are the same as those of the lower electrode panel. After cutting into a vertically long sheet having the dimensions, an unnecessary transparent ITO film was removed by etching to form a rectangular upper transparent electrode in the screen fluoroscopic input part (i). Also, an upper bus bar arranged on two sides facing the lateral direction of the upper transparent electrode, a lead line for outputting to the outside from the upper bus bar, and an extension line portion and a key input portion (ii) from one end of the upper bus bar The upper electrode sheet was obtained by forming an input key contact corresponding to) as an upper circuit by screen printing silver paste.

Furthermore, using a flexible transparent insulating film made of a roll-shaped PET film having a thickness of 125 μm, an ultraviolet curable acrylic hard coat was applied to one side by gravure printing to obtain a PET film with a single-side hard coat. Also, a flexible transparent insulating film made of a roll-like PET film having a thickness of 50 μm is used, and a transparent window portion is formed on the screen see-through input portion (i) by screen printing with a color ink in which a pigment is dispersed in a polyester resin on one side. A decorative layer having a decorative film was formed to obtain a decorative film. Furthermore, after pasting the PET film with a single-sided hard coat and the decorative film over the entire surface using a transparent adhesive made of PSA, the length and width are cut into a vertically long sheet having the same dimensions as the upper electrode sheet, and with a hard coat A decorative sheet was obtained. As shown in FIG. 5, the pattern formed by the decorative layer of the decorative sheet is formed with a repeated pattern of “clover” over the entire area excluding the transparent window, and further, 0-9 in the key input part (ii). And a numeric keypad pattern in which symbols “*” and “#” are arranged.

  Next, the decorative layer side surface of the decorative sheet is bonded to the surface opposite to the upper transparent electrode side of the upper electrode sheet with a baseless transparent adhesive having a thickness of 0.025 mm, and the lower electrode panel The upper electrode sheet is arranged to face each other so as to separate the formed electrodes, and a screen fluoroscopy input part punch hole, a key input part punch hole, and a hole for connecting to the FPC with pin are provided. Bonding was performed using a stamped frame-shaped double-sided adhesive tape.

  Then, after injecting the conductive adhesive ink into the through-hole formed in the lower electrode panel with a dispenser, the metal pin of the FPC with a pin is placed along the entrance of the through-hole, and the metal pin is used by an ultrasonic insert device. By applying ultrasonic vibration and pressure to the head of the metal pin, the shaft portion of the metal pin is press-fitted into the through-hole, whereby the wall surface of the through-hole formed in the lower electrode panel is inserted into the shaft portion of the metal pin. The protective resin was obtained by inserting the melted resin while melting.

<Example 2>
A decorative film in which the decorative layer having a transparent window portion is formed on a film having aluminum formed on the entire surface of a 50 μm PET film by vacuum vapor deposition, and is bonded to a PET film with a single-side hard coat with an adhesive. The same as Example 1 except that the decorative sheet with a hard coat was cut.

  The protective panels of Examples 1 and 2 can be designed to be completely seamless (seamless) around the screen fluoroscopy input part and key input part, and can easily wipe off dirt such as oil and fat. It was possible to design without misalignment between the surroundings and the handle.

  It is to be noted that, by appropriately combining any of the various embodiments, the effects possessed by them can be produced. Although the present invention has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various variations and modifications will be apparent to those skilled in the art. Such changes and modifications are to be understood as included within the scope of the present invention as long as they do not depart from the scope of the present invention.

It is a perspective view which shows the usage example of the protection panel with a touch input function of the electronic device display window which concerns on this invention. It is a figure explaining the relationship between the protection panel with a touch input function of the electronic device display window which concerns on this invention, and a product in the AA cross section of FIG. It is a disassembled perspective view which shows one Example of a structure of the protection panel with a touch input function of the electronic device display window which concerns on this invention. It is a figure which shows the detection principle of the key input of the protection panel with a touch input function of the electronic device display window which concerns on this invention. It is a perspective view which shows the decoration example of the protection panel with a touch input function of the electronic device display window which concerns on this invention. It is a figure explaining the relationship between the protection panel with a touch input function of an electronic device display window which concerns on this invention, and a product in the BB cross section of FIG. It is a perspective view which shows the usage example of the conventional touch panel in which wide area input is possible. It is a perspective view which shows the usage example of the conventional touch panel in which wide area input is possible. It is a disassembled perspective view which shows the structure of the conventional touch panel in which wide area input is possible.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Protection panel with touch input function of electronic device display 2 Movable sheet 2a Upper electrode sheet 2b Decoration sheet 3 Lower electrode panel 3a Protection panel 4 Upper transparent electrode 5 Lower transparent electrode 6a, 6b Lower bus bar 7a, 7b Upper bus bar 7c Extension Line 7d Input key contact 8 Insulation sheet
8a Hole for screen perspective input part 8b Hole for key input part 9 Spacer 10 FPC with pin
17 Picture 17a Key 18 Transparent window 19 Product (casing)
20 Display 100 Touch panel 100a Printing section 101 Key sheet 102a Product (casing)
102b Product (casing)
103 Upper electrode sheet 104 Insulating sheet 104a Hole for screen perspective input part 104b Hole for key input part
105 Lower electrode sheet 106 Upper transparent electrode 107 Lower transparent electrode 108a, 108b Lower bus bar 109a, 109b Upper bus bar 109c Extension line portion 109d Input key contact 110 FPC
111 Opening for fluoroscopy input 112 Opening for key input 113 棧 114 Opening for key input i Screen fluoroscopy input part ii Key input part

Claims (3)

A lower electrode panel having a rectangular lower transparent electrode and a lower circuit provided around the lower transparent electrode on the upper surface of the inflexible protective panel body;
An upper part having a rectangular upper transparent electrode and an upper circuit provided around the upper transparent electrode on the lower surface of the flexible transparent insulating film, and being bonded to form a gap between the lower electrode panel and the electrode An electrode sheet;
A decorative sheet that has a decorative layer that conceals the lower circuit and the upper circuit to form a transparent window portion on at least one surface of a flexible transparent insulating film, and is bonded to the upper surface of the upper electrode sheet; ,
An FPC with a pin for extracting an electrical signal through a through hole provided in the lower electrode panel;
A display that is configured to be fitted and held in a panel fitting portion of a casing having an opening without gap so that its outer surface forms the same plane, and is disposed on the lower side so as to be visible from the outside through the transparent window portion. A protection panel with a touch input function of an electronic device display window for protecting the device,
The lower circuit has a pair of lower bus bars disposed on two parallel sides of the lower transparent electrode;
The upper circuit is connected to a pair of upper bus bars disposed on two sides parallel to the upper transparent electrode and perpendicular to the lower bus bar, and is connected to at least one of the upper bus bars via an extension line, and further There are two or more input key contacts that do not exist on the same line parallel to the bus bar and that form a gap with the lower transparent electrode,
The screen transparent input portion is configured in the transparent window portion by overlapping the lower transparent electrode and the upper transparent electrode,
A protective panel with a touch input function for an electronic device display window, wherein a key input portion is formed at a place other than the transparent window portion by overlapping the lower transparent electrode and the input key contact. A lower electrode panel having a rectangular lower transparent electrode and a lower circuit provided around the lower transparent electrode on the upper surface of the inflexible protective panel body;
An upper part having a rectangular upper transparent electrode and an upper circuit provided around the upper transparent electrode on the lower surface of the flexible transparent insulating film, and being bonded to form a gap between the lower electrode panel and the electrode An electrode sheet;
A decorative sheet that has a decorative layer that conceals the lower circuit and the upper circuit to form a transparent window portion on at least one surface of a flexible transparent insulating film, and is bonded to the upper surface of the upper electrode sheet; ,
An FPC with a pin for extracting an electrical signal through a through hole provided in the lower electrode panel;
A display that is configured to be fitted and held in a panel fitting portion of a casing having an opening without gap so that its outer surface forms the same plane, and is disposed on the lower side so as to be visible from the outside through the transparent window portion. A protection panel with a touch input function of an electronic device display window for protecting the device,
The upper circuit has a pair of upper bus bars disposed on two parallel sides of the upper transparent electrode;
The lower circuit is connected to a pair of lower bus bars arranged on two sides parallel to the lower transparent electrode and perpendicular to the upper bus bar, and is connected to at least one of the lower bus bars via an extension line portion, and further There is an input key contact that does not exist two or more on the same line parallel to the bus bar and forms a gap with the upper transparent electrode,
While configuring the transparent see-through input portion in the transparent window portion by overlapping the upper transparent electrode and the lower transparent electrode,
A protective panel with a touch input function for an electronic device display window, wherein a key input portion is formed at a place other than the transparent window portion by overlapping the upper transparent electrode and the input key contact. The protection panel with a touch input function for an electronic device display window according to claim 1, wherein a plurality of the key input units are arranged to constitute a numeric keypad.

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