JP5127746B2 - Touch panel - Google Patents

Description

  The present invention relates to the technical field of touch panels.

  As the touch panel, a resistance film type, a capacitance type, an ultrasonic type, an optical type, etc. are known (see, for example, Patent Documents 1 and 2). The touch panel is often arranged so as to overlap a display panel such as a liquid crystal panel.

  For example, in a capacitive touch panel, a transparent conductive film is provided on the display panel side surface of the touch panel (that is, the surface opposite to the input surface) as a shield to prevent electromagnetic noise from the display panel. (See, for example, FIG. 6 of Patent Document 1). Such a transparent conductive film can function as the shield described above by being supplied with a predetermined potential via a potential supply terminal (or potential supply line) formed on a flexible substrate connected to the touch panel. It becomes possible.

Special table 2003-511799 gazette JP 2004-118754 A

  In the touch panel provided with the transparent conductive film as the shield described above, in the inspection process, it is inspected whether or not the potential supply terminal and the transparent conductive film are electrically connected to each other. Such inspection is generally performed by bringing an inspection probe into contact with the end of the potential supply terminal opposite to the side connected to the transparent conductive film and the transparent conductive film, and then supplying the potential supply terminal. And measuring the resistance value between the transparent conductive films. When the inspection probe is brought into contact with the transparent conductive film in this way, the contact state of the inspection probe with respect to the transparent conductive film becomes unstable, and the resistance value between the potential supply terminal and the transparent conductive film can be stably measured. May be difficult. In addition, since the inspection probe is brought into contact with the transparent conductive film, the transparent conductive film may be damaged or the glass substrate on which the transparent conductive film is formed may be broken.

  The present invention has been made in view of the above-described problems, for example, and it is an object to provide a touch panel capable of easily and reliably inspecting an electrical connection state between a shield film and a potential supply terminal. To do.

  In order to solve the above problems, the touch panel of the present invention includes a touch panel body, a shield film provided on the back surface opposite to the input surface of the touch panel body, and a connection substrate connected to the shield film of the touch panel. A potential supply line that is provided on the connection substrate and supplies a predetermined potential; and a potential that is provided on a side of the connection substrate facing the shield film and is electrically connected to the potential supply line and the shield film. A supply connection terminal; a first inspection terminal electrically connected to the potential supply connection terminal via the potential supply line; and a side of the connection substrate facing the shield film, A test connection terminal electrically connected to the shield film; and a second test terminal electrically connected to the test connection terminal.

  According to the touch panel of the present invention, for example, a back surface of a touch panel body in which a position detection element for detecting the position of a target object such as a finger or a touch pen is formed on a substrate such as a glass substrate (for example, constituting the touch panel body). A shield film made of a conductive film such as ITO (Indium Tin Oxide) is provided on another substrate surface of the substrate opposite to the one substrate surface on which the position detection element is formed. The touch panel of the present invention is used in a state where the touch panel is disposed so as to overlap a display panel such as a liquid crystal panel (that is, a state where the display panel is disposed on the back side of the touch panel body). During the operation of the touch panel of the present invention, a predetermined potential is supplied to the shield film by a potential supply line provided on a connection substrate such as a flexible substrate connected to the touch panel body. Thus, the shield film can function as a shield that prevents electromagnetic noise from the display panel. The predetermined potential may be, for example, a ground potential or a ground potential that is completely fixed at a constant potential with respect to the time axis, or a potential that varies with respect to the time axis. Also good.

  The connection substrate includes, for example, a main body connected to the input surface side of the touch panel main body, and an extended portion that extends from the main body to, for example, the back surface and is connected to the shield film. For example, in the extended portion, the potential supply connection terminal electrically connected to the potential supply line is provided so as to face the shield film, and the potential supply connection terminal contacts the shield film, Electrical connection between the potential supply line and the shield film becomes possible. The potential supply line is routed from, for example, an integrated circuit (IC) mounted on the main body portion of the connection board to a potential supply connection terminal provided on the extension portion of the connection board.

  Note that the connection portion where the connection substrate is connected to the shield film may be separated into two parts (or may be divided into two parts), or may be composed of two members.

  In particular, the present invention includes first and second inspection terminals and an inspection connection terminal for inspecting an electrical connection state between the shield film and the potential supply connection terminal. The first inspection terminal is provided, for example, on the main body of the connection substrate, and is electrically connected to the potential supply connection terminal via the potential supply line. The inspection connection terminal is provided, for example, on the side facing the shield film in the extended portion of the connection substrate, and is electrically connected to the shield film. The second inspection terminal is provided, for example, on at least one of the main body portion and the extension portion of the connection substrate, and is electrically connected to the inspection connection terminal. For example, when the second inspection terminal is provided in the extended portion of the connection substrate, the second inspection terminal is provided on the side of the extended portion that does not face the shield film, for example, formed in the extended portion. Through the formed through hole, the connecting portion is electrically connected to the inspection connecting terminal provided on the side of the extending portion facing the shield film.

  Accordingly, in the touch panel inspection process, for example, by measuring the electrical resistance value between the first inspection terminal and the second inspection terminal, the electrical connection between the potential supply connection terminal and the shield film is achieved. It is possible to easily and surely check the connection state. Specifically, for example, an inspection probe is brought into contact with each of the first and second inspection terminals, and the electrical resistance value between the first inspection terminal and the second inspection terminal is determined. taking measurement. Here, for example, the first inspection terminal is provided on the main body of the connection board, and the second inspection terminal is the side not facing the shield film in the main body of the connection board or the extension of the connection board. For example, the inspection probe can be contacted easily and stably, and the electrical resistance value between the first inspection terminal and the second inspection terminal can be measured stably. can do. Therefore, the electrical connection state between the potential supply connection terminal and the shield film can be reliably inspected. Instead of measuring the electrical resistance value between the first inspection terminal and the second inspection terminal using the inspection probe, each of the first and second inspection terminals is Electrical connection is made to an inspection circuit provided on the connection board or externally, and an electrical resistance value between the first inspection terminal and the second inspection terminal is measured by this inspection circuit. It can also be configured as follows.

  Temporarily, the inspection connection terminal and the second inspection terminal are not provided, and the inspection probe is brought into contact with each of the first inspection terminal and the shield film, so that the first inspection terminal and the shield film are in contact with each other. When the electrical connection state between the potential supply connection terminal and the shield film is inspected by measuring the electrical resistance value between them, the contact state of the inspection probe with the shield film becomes unstable, and the first It may be difficult to stably measure the electrical resistance value between the inspection terminal 1 and the shield film. Further, since the inspection probe is brought into contact with the shield film, the shield film may be damaged, or a substrate such as a glass substrate constituting the touch panel body on which the shield film is formed may be broken. However, according to the present invention, as described above, since the first and second inspection terminals and the inspection connection terminal are provided, the electric power between the first inspection terminal and the second inspection terminal is provided. By measuring the resistance value, the electrical connection state between the potential supply connection terminal and the shield film can be easily and reliably inspected. Furthermore, the electrical connection between the connection terminal for potential supply and the shield film can be inspected without bringing the inspection probe into contact with the shield film, so that the shield film is damaged or a shield film is formed. Thus, it is possible to avoid a situation where a substrate such as a glass substrate constituting the touch panel body is broken.

  As described above, according to the touch panel of the present invention, it is possible to easily and reliably inspect the electrical connection state between the shield film and the potential supply connection terminal in the inspection process. As a result, the reliability of the touch panel can be improved.

  In one aspect of the touch panel of the present invention, the second inspection terminal is provided on the connection substrate.

  According to this aspect, the electrical resistance value between the first inspection terminal and the second inspection terminal can be measured more stably.

  In another aspect of the touch panel of the present invention, the connection board has a main body that supplies a signal to the touch panel main body.

  According to this aspect, a signal can be reliably supplied to the touch panel body.

  In the aspect in which the connection board includes the main body, the connection board has an extending portion separated from the main body, and the extending portion is provided with the potential supply connection terminal and the inspection connection terminal. May be.

  In this case, the potential supply connection terminal and the inspection connection terminal can be arranged close to each other.

  In another aspect of the touch panel of the present invention, the second inspection terminal is provided on a side of the connection substrate that does not face the shield film, and the inspection connection is made through a through hole formed in the connection substrate. Electrically connected to the terminal.

  According to this aspect, the second inspection terminal is provided, for example, on the side of the extension portion of the connection substrate that does not face the shield film (that is, on the opposite side of the extension portion from the second inspection terminal). Connected to the inspection connection terminal through a through hole formed in the extending portion, so that the wiring for electrically connecting the inspection connection terminal and the second inspection terminal is connected. There is no need to form it on a substrate. Therefore, for example, the degree of freedom in the layout of other wirings or electronic elements in the main body portion of the connection board is increased. Or it becomes possible to make the main-body part of a connection board small.

  In another aspect of the touch panel of the present invention, the connection substrate is connected to the input surface side of the touch panel body, and the connection substrate is formed to wrap around from the input surface side to the back surface side.

  According to this aspect, for example, the connection substrate has an extending portion that is formed so that the main body portion is connected to the input surface side of the touch panel main body and wraps around from the main body portion to the back surface side. Therefore, the connection terminals formed on the main body of the connection board are electrically connected to various terminals such as terminals electrically connected to the position detection element formed on the input surface side of the touch panel main body. In addition, the potential supply connection terminal and the inspection connection terminal provided in the extending portion of the connection substrate can be electrically connected to the shield film provided on the back side of the touch panel body.

  The operation and other advantages of the present invention will become apparent from the best mode for carrying out the invention described below.

It is sectional drawing which shows schematically the whole structure of the touchscreen which concerns on 1st Embodiment. It is a perspective view which shows the structure of the touchscreen which concerns on 1st Embodiment. It is a perspective view which shows the structure of the FPC extension part which concerns on 1st Embodiment. It is an expansion perspective view of the C1 part of FIG. It is a schematic diagram which shows the structure of the terminal for a test | inspection provided on FPC which concerns on 1st Embodiment. It is a schematic diagram which shows the structure of the terminal for a test | inspection provided on FPC which concerns on a comparative example. It is a schematic diagram which shows the structure of the terminal for a test | inspection provided on FPC which concerns on 2nd Embodiment. It is sectional drawing which shows the connection structure of the two terminals for a test | inspection provided in the FPC extension part which concerns on 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
The touch panel according to the first embodiment will be described with reference to FIGS.

  First, the overall configuration of the touch panel according to the present embodiment will be schematically described with reference to FIGS. 1 and 2.

  FIG. 1 is a cross-sectional view schematically showing the overall configuration of the touch panel according to the present embodiment. In addition, in FIG. 1, the liquid crystal device with a touchscreen provided with the touchscreen which concerns on this embodiment is shown.

  1, the liquid crystal device with a touch panel according to the present embodiment includes a liquid crystal panel 20, a backlight 40, and a touch panel 100 according to the present embodiment.

  The liquid crystal panel 20 is configured as a transmissive liquid crystal panel having a structure in which a liquid crystal layer (not shown) is sandwiched between a first substrate 21 and a second substrate 22 each formed of a translucent material such as glass, for example. ing. The first substrate 21 and the second substrate 22 are bonded to each other by a frame-shaped sealing material (not shown). A liquid crystal layer is provided in a region defined by the frame-shaped sealing material. In the present invention, the liquid crystal panel 20 is not limited to a specific configuration, and may employ various known configurations.

  More specifically, the first substrate 21 of the liquid crystal panel 20 has a substrate protruding portion 21 t that protrudes from the second substrate 22 on one side of the first substrate 21. An electronic component 25 including, for example, a drive circuit for driving the liquid crystal panel 20 is mounted on the substrate extension portion 21t (more precisely, the surface of the substrate extension portion 21t on the second substrate 22 side). Yes. Polarizing plates 27 and 28 are disposed on the outer surface sides of the first substrate 21 and the second substrate 22.

  The backlight 40 is configured as a backlight (illuminating device) that irradiates the liquid crystal panel 20 with irradiation light.

  FIG. 2 is a perspective view showing the configuration of the touch panel according to the present embodiment. FIG. 2 is a perspective view of the touch panel according to the present embodiment as viewed from the back side.

  1 and 2, a touch panel 100 includes a sensor substrate 110 as an example of a “touch panel body” according to the present invention, a shield film 120, a flexible substrate (FPC (Flexible printed circuits)) 130, and a controller IC 140 (FIG. 1), an adhesive layer 150 (see FIG. 1), and a cover member 160.

  The sensor substrate 110 has a position detection element formed on a glass substrate, for example, and is configured as, for example, a capacitive touch panel sensor substrate. The sensor substrate 110 is configured to be able to detect the position of a target object such as a finger or a touch pen on the input surface 110s.

  The shield film 120 is made of, for example, a transparent conductive film such as ITO, and is formed in a solid shape on almost the entire back surface 110r of the sensor substrate 110 opposite to the input surface 110s. The shield film 120 is configured to be supplied with a predetermined potential from a controller IC 140 (described later) during operation of the liquid crystal device with a touch panel according to the present embodiment, and serves as a shield that prevents electromagnetic noise from the liquid crystal panel 20. Function. The predetermined potential supplied to the shield film 120 may be a potential that is completely fixed at a constant potential with respect to the time axis, such as a ground potential or a ground potential, or may be The potential may vary.

  The FPC 130 includes an FPC main body 131 connected to the input surface 110 s side of the sensor substrate 110, and an FPC extension 132 extending from the FPC main body 131 and connected to the shield film 120. A connection terminal portion 133 (see FIG. 2) for connecting an external circuit is formed at the end of the FPC main body 131. A controller IC 140 is mounted on the FPC main body 131. The FPC extending portion 132 is formed so as to go from the input surface 110 s side of the sensor substrate 110 to the back surface 110 r side. As will be described in detail later with reference to FIGS. 3 to 5, in this embodiment, a potential supply line 173 for supplying a predetermined potential to the shield film 120 and a potential supply terminal 171 are provided on the FPC 130. And inspection terminals 172, 191 and 192 are formed by patterning a metal such as copper (Cu). The potential supply terminal 171 is an example of the “potential supply connection terminal” according to the present invention.

  The controller IC 140 is mounted on the FPC main body 131, and supplies a predetermined potential to the circuit for driving the sensor substrate 110 (more precisely, the position detection element included in the sensor substrate 110) and the shield film 120. Includes circuitry.

  The adhesive layer 150 is made of a light-transmitting adhesive and adheres the sensor substrate 110 and the cover member 160.

  The cover member 160 is made of a transparent substrate such as a glass substrate or a plastic substrate, for example, and is provided so as to cover the touch panel substrate 110 from the input surface 110s side. The cover member 160 is bonded to the input surface 110 s of the sensor substrate 110 by the adhesive layer 150. The cover member 160 may be formed with a light shielding film surrounding the input surface 110s of the sensor substrate 110.

  Next, the inspection terminals provided on the FPC according to the present embodiment will be described with reference to FIGS.

  FIG. 3 is a perspective view showing the configuration of the FPC extending portion according to the present embodiment. FIG. 4 is an enlarged perspective view of a portion C1 in FIG. FIG. 5 is a schematic diagram showing the configuration of the inspection terminal provided on the FPC according to the present embodiment. 3 to 5 are perspective views when the FPC 130 is viewed from the back side of the touch panel according to the present embodiment.

  As described above with reference to FIGS. 1 and 2, the FPC 130 is connected to the shield film 120 by extending from the FPC main body 131 connected to the input surface 110 s side of the sensor substrate 110 and the FPC main body 131. The FPC extending portion 132 is provided.

  3 and 5, a potential supply line 173 for supplying a predetermined potential to the shield film 120 is formed on the FPC 130. One end of the potential supply line 173 is electrically connected to the controller IC 140 described above with reference to FIG. 1, and the other end of the potential supply line 173 is a potential formed at the end 132 a of the FPC extension portion 132. It is electrically connected to the supply terminal 171. The potential supply line 173 is routed from the portion of the FPC main body 131 where the controller IC 140 is formed to the end 132a of the FPC extension 132. In the present embodiment, the potential supply line 173 is formed on the surface of the FPC 130 opposite to the surface on which the controller IC 140 is mounted.

  As shown in FIGS. 3 and 4, the FPC extension 132 has a back surface 110 r from the input surface 110 s side of the sensor substrate 110 so that the potential supply terminal 171 is in contact with and electrically connected to the shield film 120. Bent around the side. The potential supply terminal 171 and the shield film 120 are connected by, for example, an ACF (Anisotropic Conductive Film). During operation of the liquid crystal device with a touch panel according to the present embodiment, a predetermined potential is supplied from the controller IC 140 to the shield film 120 via the potential supply line 173 and the potential supply terminal 171.

  In FIG. 3, a support member 139 is provided along one side of the sensor substrate 110 to which the FPC main body 131 is connected. The support member 139 supports the FPC main body 131 from the back surface 110 r side of the sensor substrate 110.

  3 and 5, in this embodiment, in particular, inspection terminals 172, 191 and 192 for inspecting the electrical connection state between the shield film 120 and the potential supply terminal 171 are provided on the FPC 130. Yes.

  The inspection terminal 172 is an example of the “first inspection terminal” according to the present invention. The inspection terminal 172 is provided in the FPC main body 131 and is electrically connected to the potential supply terminal 171 via the potential supply line 173. Yes.

  The inspection terminal 191 is an example of the “inspection connection terminal” according to the present invention, and is on the side facing the shield film 120 in the FPC extension 132 (more specifically, the end of the FPC extension 132). 132a is provided in parallel with the potential supply terminal 171) and is electrically connected to the shield film 120. The inspection terminal 191 and the shield film 120 are connected by, for example, ACF.

  The inspection terminal 192 is an example of the “second inspection terminal” according to the present invention, and is provided in the FPC main body 131 and is electrically connected to the inspection terminal 191 described above via the inspection wiring 193. ing. The inspection wiring 193 is formed on the FPC 130 so as to electrically connect the inspection terminals 191 and 192.

  According to the inspection terminals 172, 191 and 192 configured as described above, in the touch panel inspection process according to the present embodiment, for example, the electrical resistance value between the inspection terminal 172 and the inspection terminal 192. Is measured, the electrical connection state between the potential supply terminal 171 and the shield film 120 can be easily and reliably inspected. Specifically, for example, an inspection probe is brought into contact with each of the inspection terminals 172 and 192, and the electrical resistance value between the inspection terminal 172 and the inspection terminal 192 is measured. Here, since both of the inspection terminals 172 and 192 are provided on the FPC main body 131, for example, the inspection probe can be easily and stably brought into contact, and the inspection terminal 172 and the inspection terminal 192 can be contacted. It is possible to stably measure the electrical resistance value between. Therefore, the electrical connection state between the potential supply terminal 171 and the shield film 120 can be reliably inspected. Instead of measuring the electrical resistance value between the inspection terminal 172 and the inspection terminal 192 using the inspection probe, each of the inspection terminals 172 and 192 is provided on the FPC 130 or externally. The electrical resistance value between the inspection terminal 172 and the inspection terminal 192 may be measured by electrically connecting to the inspection circuit.

  Furthermore, in particular, in the present embodiment, the inspection terminal 192 is provided in the FPC main body 131 formed larger than the FPC extending portion 132, so that the degree of freedom in layout is relatively high, which is advantageous in practice.

  FIG. 6 is a schematic diagram illustrating a configuration of an inspection terminal provided on the FPC according to the comparative example. In FIG. 6, the same reference numerals are given to the same components as the components according to the first embodiment shown in FIGS. 1 to 5, and description thereof will be omitted as appropriate.

  As shown in FIG. 6 as a comparative example, if the above-described inspection terminals 191 and 192 are not provided on the FPC 130, the inspection probes Pb1 and Pb2 are brought into contact with the inspection terminal 172 and the shield film 120, respectively. When inspecting the electrical connection state between the potential supply terminal 171 and the shield film 120 by measuring the electrical resistance value between the inspection terminal 172 and the shield film 120, an inspection probe is used. The contact state of Pb2 with respect to the shield film 120 becomes unstable, and it may be difficult to stably measure the electrical resistance value between the inspection terminal 172 and the shield film 120. Further, since the inspection probe Pb2 is brought into contact with the shield film 120, the shield film 120 is damaged, or a substrate such as a glass substrate constituting the sensor substrate 110 on which the shield film 120 is formed is broken. There is a risk.

  However, according to the present embodiment, as described above, since the inspection terminals 172, 191 and 192 are provided, by measuring the electrical resistance value between the inspection terminal 172 and the inspection terminal 192, The electrical connection state between the potential supply terminal 171 and the shield film 120 can be easily and reliably inspected. Further, since the electrical connection state between the potential supply terminal 171 and the shield film 120 can be inspected without bringing the inspection probe into contact with the shield film 120, the shield film 120 is damaged or shielded. It is possible to avoid a situation in which a substrate such as a glass substrate that forms the sensor substrate 110 on which the film 120 is formed is broken.

  As described above, according to the present embodiment, it is possible to easily and reliably inspect the electrical connection state between the shield film 120 and the potential supply terminal 171 in the inspection process. As a result, the reliability of the device can be improved.

Second Embodiment
A touch panel according to the second embodiment will be described with reference to FIGS. 7 and 8.

  FIG. 7 is a schematic diagram illustrating a configuration of an inspection terminal provided on the FPC according to the second embodiment. FIG. 8 is a cross-sectional view showing a connection configuration of two inspection terminals provided in the FPC extending portion according to the second embodiment.

  The touch panel according to the second embodiment differs from the touch panel according to the first embodiment described above in that it includes an inspection terminal 292 instead of the above-described inspection terminal 192, and other points are described in the first embodiment described above. The configuration is almost the same as that of the touch panel according to the embodiment.

  7 and 8, the inspection terminal 292 is an example of the “second inspection terminal” according to the present invention, and is provided on the side of the FPC extending portion 132 that does not face the shield film 120. It is electrically connected to the inspection terminal 191 through a through hole 293 formed in the extended portion 132.

  Therefore, in the touch panel inspection process according to the present embodiment, for example, by measuring the electrical resistance value between the inspection terminal 172 and the inspection terminal 292, the potential supply terminal 171 and the shield film 120 are The electrical connection state can be easily and reliably inspected. Specifically, for example, an inspection probe is brought into contact with each of the inspection terminals 172 and 292, and the electrical resistance value between the inspection terminal 172 and the inspection terminal 292 is measured. Here, since the inspection terminal 172 is provided on the FPC main body 131 and the inspection terminal 292 is provided on the side of the FPC extending portion 132 that does not face the shield film 120, for example, an inspection probe can be easily used. The electrical resistance value between the inspection terminal 172 and the inspection terminal 292 can be stably measured. Therefore, the electrical connection state between the potential supply terminal 171 and the shield film 120 can be reliably inspected. Instead of measuring the electrical resistance value between the inspection terminal 172 and the inspection terminal 292 using the inspection probe, each of the inspection terminals 172 and 292 is provided on the FPC 130 or externally. The electrical resistance value between the inspection terminal 172 and the inspection terminal 292 may be measured by electrically connecting to the inspection circuit.

  Further, particularly in the present embodiment, the inspection terminal 292 is provided on the side of the FPC extension portion 132 that does not face the shield film 132 (that is, the side opposite to the inspection terminal 191 with respect to the FPC extension portion 132). Since it is electrically connected to the inspection terminal 191 through the through hole 293 formed in the FPC extension portion 132, wiring for electrically connecting the inspection terminal 191 and the inspection terminal 292 is provided in the FPC main body. It is not necessary to form it on the part 131. Therefore, the degree of freedom of layout of other wirings or electronic elements in the FPC main body 131 is increased. Alternatively, the FPC main body 131 can be made smaller.

  The present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification. A touch panel with such a change can also be used. It is included in the technical scope of the present invention.

  DESCRIPTION OF SYMBOLS 20 ... Liquid crystal panel, 40 ... Back light, 100 ... Touch panel, 110 ... Sensor board | substrate, 120 ... Shield film, 130 ... FPC, 131 ... FPC main-body part, 132 ... FPC extension part, 140 ... Controller IC, 150 ... Adhesive layer , 160 ... Cover member, 171 ... Terminal for potential supply, 172 ... Terminal for inspection, 173 ... Electric potential supply line, 191, 192 ... Terminal for inspection, 193 ... Wiring for inspection, 292 ... Terminal for inspection, 293 ... Through-hole

Claims (6)

The touch panel body,
A shield film provided on the back surface opposite to the input surface of the touch panel body;
A connection substrate connected to the shield film of the touch panel;
A potential supply line provided on the connection substrate for supplying a predetermined potential;
A potential supply connection terminal provided on a side of the connection substrate facing the shield film, electrically connected to the potential supply line and the shield film;
A first inspection terminal electrically connected to the potential supply connection terminal via the potential supply line;
A connection terminal for inspection provided on the side of the connection substrate facing the shield film and electrically connected to the shield film;
A touch panel comprising: a second inspection terminal electrically connected to the inspection connection terminal.   The touch panel according to claim 1, wherein the second inspection terminal is provided on the connection board.   The touch panel as set forth in claim 1, wherein the connection substrate has a main body that supplies a signal to the touch panel main body.   The said connection board | substrate has the extension part isolate | separated from the said main-body part, and the said connection part for electric potential supply and the said connection terminal for a test | inspection are provided in the said extension part. Touch panel.   The second inspection terminal is provided on a side of the connection substrate that does not face the shield film, and is electrically connected to the inspection connection terminal through a through hole formed in the connection substrate. The touch panel according to claim 1, wherein the touch panel is characterized. The connection board is connected to the input surface side of the touch panel body,
The touch panel according to any one of claims 1 to 5, wherein the connection substrate is formed so as to wrap around from the input surface side to the back surface side.

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