JP5818741B2 - Input device, display device, and electronic device - Google Patents

Description

  The present invention relates to an input device, a display device, and an electronic device.

  Conventionally, as an input device, a capacitive touch panel that detects an input position by detecting a change in capacitance between a finger and a detection electrode is known. In such an input device, a detection wiring is connected to a detection electrode provided on a base (see, for example, Patent Document 1). The detection wiring is covered with a protective layer, and a part of the detection wiring is exposed from the protective layer.

JP 2008-97283 A

  By the way, when the conventional input device is attached to, for example, a support portion of a housing of a display device, the detection wiring exposed from the protective layer is caused by moisture or dust in the atmosphere entering the housing. There was a possibility of corrosion. If the detection wiring exposed from the protective layer is corroded, the reliability of the input device is lowered.

  The present invention has been made in view of such a problem, and an object thereof relates to an input device, a display device, and an electronic apparatus that can improve reliability.

  One aspect of the input device of the present invention is an input device having an arrangement region for arranging an adhesive member, the substrate, a detection electrode provided on the substrate, and provided on the substrate. And a detection wiring electrically connected to the detection electrode, and a protective layer provided on the substrate and covering the detection wiring, the protective layer including the protective layer from the protective layer An opening from which a part of the detection wiring is exposed is provided, and the arrangement region surrounds the detection electrode and the opening on the protective layer in a plan view, and the opening A region located between the end face of the substrate closest to the opening is included.

  One aspect of the display device of the present invention includes an input device according to the present invention, a display panel disposed opposite to the input device, and a housing that houses the display panel and has a first support portion. The input device is attached to the first support portion via the adhesive member in the arrangement region.

  One embodiment of the electronic device of the present invention includes the display device according to the present invention.

  INDUSTRIAL APPLICABILITY The input device, display device, and electronic device of the present invention have an effect that reliability can be improved.

It is a top view which shows schematic structure of the input device which concerns on this embodiment. It is a top view which shows schematic structure of the input device which concerns on this embodiment. It is the II sectional view taken on the line shown in FIG. It is the II-II sectional view taken on the line shown in FIG. It is the III-III sectional view taken on the line shown in FIG. It is the IV-IV sectional view taken on the line shown in FIG. It is a top view which shows schematic structure of the display apparatus which concerns on this embodiment. It is the VV sectional view taken on the line shown in FIG. It is a perspective view which shows schematic structure of the portable terminal which concerns on this embodiment. 10 is a plan view illustrating a schematic configuration of an input device according to Modification 1. FIG. It is the VI-VI sectional view taken on the line shown in FIG. 10 is a plan view showing a schematic configuration of an input device according to Modification 2. FIG. It is the VII-VII sectional view taken on the line shown in FIG. 10 is a plan view illustrating a schematic configuration of an input device according to Modification 3. FIG. It is the VIII-VIII sectional view taken on the line shown in FIG. It is the IX-IX sectional view taken on the line shown in FIG. 10 is a plan view showing a schematic configuration of an input device according to Modification 4. FIG. It is the XX sectional view taken on the line in FIG. 10 is a cross-sectional view illustrating a schematic configuration of a display device according to Modification Example 5. FIG.

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

  However, for convenience of explanation, the drawings to be referred to below show simplified main members necessary for explaining the present invention, among the constituent members of one embodiment of the present invention. Therefore, the input device, the display device, and the electronic device according to the present invention can include arbitrary constituent members that are not shown in the drawings referred to in this specification.

  As shown in FIGS. 1 and 2, the input device X1 according to the present embodiment is a projected capacitive touch panel, and has an input area E1 and a non-input area E2. The input area E1 is an area where the user can perform an input operation. The non-input area E2 is an area where the user cannot perform an input operation. The non-input area E2 according to the present embodiment is located outside the input area E1 so as to surround the input area E1, but is not limited thereto. For example, the non-input area E2 may be located in the input area E1.

  The input device X1 is not limited to a projected capacitive touch panel, and may be, for example, a surface capacitive touch panel or a resistive touch panel.

  As illustrated in FIGS. 1 to 4, the input device X <b> 1 includes a base 2. 2, illustration of the insulator 5, the arrangement | positioning area | region 10, the electroconductive adhesive member 12, and the protective sheet 13 is abbreviate | omitted for convenience of explanation. The same applies to FIGS. 10, 12, 14, and 17 described below.

  The substrate 2 has a role of supporting the first detection electrode pattern 3, the second detection electrode pattern 4, and the insulator 5. The base 2 has a first main surface 2A and a second main surface 2B. The first main surface 2A is located closer to the user than the second main surface 2B. The second main surface 2B is located on the opposite side of the first main surface 2A. The base 2 has an insulating property and is configured to have a light-transmitting property with respect to light incident in a direction intersecting the first main surface 2A and the second main surface 2B of the base 2. Examples of the constituent material of the base 2 include glass or plastic.

The first detection electrode pattern 3 generates capacitance between the user's finger F1 approaching the first main surface 2A of the base 2 corresponding to the input area E1, and detects the input position in the Y direction. Have A plurality of first detection electrode patterns 3 are provided side by side in the Y direction on the second main surface 2B of the base 2 corresponding to the input region E1. The first detection electrode pattern 3 includes a first detection electrode 3a and a first inter-electrode wiring 3b.

  The 1st detection electrode 3a has a role which generate | occur | produces an electrostatic capacitance between user's fingers F1. A plurality of first detection electrodes 3a are provided side by side in the X direction. The first inter-electrode wiring 3b has a role of electrically connecting the first detection electrodes 3a. The first inter-electrode wiring 3b is provided between the first detection electrodes 3a adjacent to each other.

  The second detection electrode pattern 4 generates capacitance between the user's finger F1 approaching the first main surface 2A of the base 2 corresponding to the input region E1, and detects the input position in the X direction. Have A plurality of second detection electrode patterns 4 are provided side by side in the X direction on the second main surface 2B of the base 2 corresponding to the input region E1. The second detection electrode pattern 4 includes a second detection electrode 4a and a second interelectrode wiring 4b.

  The 2nd detection electrode 4a has a role which generate | occur | produces an electrostatic capacitance between user's fingers F1. A plurality of second detection electrodes 4a are provided side by side in the Y direction. The second inter-electrode wiring 4b has a role of electrically connecting the second detection electrodes 4a. The second inter-electrode wiring 4b is provided on the insulator 5 across the insulator 5 so as to be electrically insulated from the first inter-electrode wiring 3b between the second detection electrodes 4a adjacent to each other. Yes. Here, the insulator 5 is provided on the second main surface 2B of the base 2 so as to cover the first inter-electrode wiring 3b. Examples of the constituent material of the insulator 5 include transparent resins such as acrylic resin, epoxy resin, silicone resin, silicon dioxide, or silicon nitride.

  As a constituent material of the first detection electrode pattern 3 and the second detection electrode pattern 4 described above, a conductive member having translucency can be cited. Examples of the light-transmitting conductive member include ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), ATO (Al-Doped Zinc Oxide), tin oxide, zinc oxide, or a conductive polymer. .

As a method for forming the first detection electrode pattern 3 and the second detection electrode pattern 4, for example, the above-described materials are formed by sputtering, vapor deposition, or CVD (Chemical Vapor Deposition).
) Method to form a film on the second main surface 2B of the substrate 2. And the photosensitive resin is apply | coated to the surface of this film | membrane, the 1st detection electrode pattern 3 and the 2nd detection electrode pattern 4 are formed by patterning a film | membrane through an exposure, image development, and an etching process.

  Next, referring to FIG. 5 and FIG. 6, the decorative layer 6, the covering layer 7, the detection wiring 8, the protective layer 9, the arrangement region 10, the wiring substrate 11, and the conductive adhesive member provided on the base 2. 12 and the protective sheet 13 will be described. Here, FIG. 5 is a sectional view taken along line III-III shown in FIG. FIG. 6 is a cross-sectional view taken along the line IV-IV shown in FIG.

  The decoration layer 6 has a role of decorating the non-input area E2. For this reason, the decoration layer 6 is provided on the 2nd main surface 2B of the base | substrate 2 corresponding to the non-input area | region E2. Examples of the constituent material of the decoration layer 6 include a resin material containing a coloring material. Examples of the resin material include acrylic resins, epoxy resins, and silicone resins. Examples of the coloring material include carbon, titanium, and chromium. The decorative layer 6 is not limited to black, and may be colored other than black. Examples of the method for forming the decorative layer 6 include a screen printing method, a sputtering method, a CVD method, and a vapor deposition method.

The covering layer 7 has a role of protecting the decorative layer 6. Here, as a role which protects the decoration layer 6, the role which protects the decoration layer 6 from the corrosion by moisture absorption, or the decoration layer 6 is mentioned, for example.
The role which reduces possibility that the material of will change in quality is mentioned. The covering layer 7 is provided on the second main surface 2 </ b> B of the base 2 and covers the decorative layer 6. Examples of the constituent material of the coating layer 7 include an acrylic resin, a silicone resin, a rubber resin, a urethane resin, and an inorganic compound containing silicon. Examples of the method for forming the coating layer 7 include a transfer printing method, a spin coating method, and a slit coating method.

  The detection wiring 8 has a role of detecting a change in capacitance generated between the first detection electrode pattern 3 and the second detection electrode pattern 4 and the finger F1. The detection wiring 8 is located on the coating layer 7. The detection wiring 8 is electrically connected to the first detection electrode pattern 3 and the second detection electrode pattern 4.

  The detection wiring 8 is made of a metal thin film so as to be hard and have high shape stability. Examples of the constituent material of the metal thin film include an aluminum film, an aluminum alloy film, a laminated film of a chromium film and an aluminum film, a laminated film of a chromium film and an aluminum alloy film, a silver film, a silver alloy film, or a gold alloy film. Can be mentioned. Examples of the method for forming the metal thin film include a sputtering method, a CVD method, and a vapor deposition method.

  The protective layer 9 has a role of reducing the possibility that static electricity jumping into the display panel 300 from the outside is applied to the detection wiring 8 when the input device X1 is incorporated in the display device Y1 (see FIG. 8). . The protective layer 9 has a base portion 9a and an adhesive portion 9b. The base portion 9a is provided on the second main surface 2B of the base 2 corresponding to the non-input area E2 via the bonding portion 9b. Specifically, the base portion 9a is located on the covering layer 7 corresponding to the non-input area E2 via the adhesive portion 9b, and covers the detection wiring 8. The protective layer 9 is provided with an opening 9 c from which a part of the detection wiring 8 is exposed from the protective layer 9. For this reason, the detection wiring 8 can be electrically connected to the wiring board 11 in the opening 9c. In the present embodiment, the opening 9c is rectangular in plan view, but is not limited thereto. The opening 9c may be circular, elliptical, square, or the like in plan view.

  Examples of the constituent material of the base 9a include glass or plastic. Moreover, as a constituent material of the adhesion part 9b, an acrylic adhesive material, a silicone adhesive material, a rubber adhesive material, or a urethane adhesive material is mentioned, for example.

  The arrangement area 10 is an area in which, for example, the adhesive member 200 is arranged when the input device X1 is incorporated into the display device Y1. For this reason, the input device X1 is attached to the first support portion 101 of the first housing 100 via the adhesive member 200 in the arrangement region 10.

  By the way, a part of the detection wiring is exposed from the protective layer in the opening. For this reason, a part of the detection wiring exposed from the protective layer in the opening may corrode due to moisture absorption in the atmosphere or adhesion of dust. Therefore, in the input device X1, in a plan view, the arrangement region 10 surrounds the first detection electrode pattern 3, the second detection electrode pattern 4, and the opening 9c on the protective layer 9, and the opening 9c A region A1 located between the end surface 2C of the base 2 closest to the opening 9c is included. Therefore, when the input device X1 is attached to the first support portion 101 via the adhesive member 200, the first detection electrode pattern 3, the second detection electrode pattern 4, and the opening 9c are surrounded on the protective layer 9. Thus, the adhesive member 200 can be provided. Therefore, the possibility that the adhesive member 200 corrodes a part of the detection wiring 8 exposed from the protective layer 9 in the first detection electrode pattern 3, the second detection electrode pattern 4, and the opening 9c is reduced. Can do. In addition, when the user's finger F1 presses the protective sheet 13 of the input device X1, the stress concentrates on a part of the adhesive member 200, thereby reducing the possibility that the adhesive member 200 is peeled off. . Thus, in the input device X1 according to the present embodiment, reliability can be improved.

  In the input device X1, the protective layer 9 extends to the input region E1 where the first detection electrode pattern 3 and the second detection electrode pattern 4 are located. The first detection electrode pattern 3 and the second detection electrode pattern 4 are covered with an extended protective layer 9. For this reason, it is possible to further reduce the possibility that the first detection electrode pattern 3 and the second detection electrode pattern 4 are corroded due to moisture absorption in the atmosphere or adhesion of dust.

  In the input device X1, the arrangement region 10 is located below the detection wiring 8. For this reason, it can arrange | position so that the arrangement | positioning area | region 10 and the wiring 8 for a detection may overlap in planar view. For this reason, it is possible to reduce the size of the input device X1.

  The wiring board 11 has a role of electrically connecting the detection wiring 8 and a position detection driver 501 described later. The wiring board 11 has an insulating layer 11a and a wiring 11b. The insulating layer 11a exposes a part of the wiring 11b and covers the remaining part of the wiring 11b. Further, a part of the wiring 11 b exposed from the insulating layer 11 a is electrically connected to the detection wiring 8 exposed from the protective layer 9 in the opening 9 c through the conductive adhesive member 12. As the wiring board 11, for example, a flexible printed wiring board can be used. As the conductive adhesive member 12, for example, an anisotropic conductive material or solder can be used.

  The protective sheet 13 has a role of protecting the first main surface 2A of the base 2 from being damaged by the contact of the user's finger F1. The protective sheet 13 is provided over the entire first main surface 2A of the base 2 corresponding to the input area E1 and the non-input area E2 via an adhesive material (not shown). The protective sheet 13 may be provided only on the first main surface 2A of the base 2 corresponding to the input area E1. Examples of the constituent material of the protective sheet 13 include glass or plastic.

    Next, the detection principle of the input device X1 will be described.

  The position detection driver 501 is electrically connected to the detection wiring 8 via the wiring 11 b of the wiring board 11. In the present embodiment, the position detection driver 501 is provided on the circuit board 500 of the display device Y1. Further, the position detection driver 501 includes a power supply device. The power supply device of the position detection driver 501 supplies a voltage to the first detection electrode pattern 3 and the second detection electrode pattern 4 via the wiring 11b of the wiring board 11 and the detection wiring 8. Here, when the finger F1, which is a conductor, approaches, contacts, or presses the first main surface 2A of the base 2 corresponding to the input region E1 via the protective sheet 13, the finger F1 and the first detection electrode pattern 3 and A capacitance is generated between the second detection electrode pattern 4 and the second detection electrode pattern 4. The position detection driver 501 constantly detects the capacitance generated in the first detection electrode pattern 3 and the second detection electrode pattern 4, and the first detection electrode pattern 3 and the first detection electrode pattern 3 that have detected a capacitance greater than a predetermined value. The input position where the user has performed the input operation is detected by the combination of the two detection electrode patterns 4. In this way, the input device X1 can detect the input position.

  As described above, in the input device X1, reliability can be improved.

  Next, a display device Y1 including the input device X1 will be described with reference to FIGS. Here, FIG. 7 is a plan view showing a schematic configuration of the display device Y1. 8 is a cross-sectional view taken along line VV shown in FIG.

  As shown in FIGS. 7 and 8, the display device Y1 according to the present embodiment includes an input device X1, a first housing 100, an adhesive member 200, a display panel 300, a backlight 400, and a circuit board 500. .

  The input device X <b> 1 is attached to the first support part 101 of the first housing 100 via the adhesive member 200 arranged in the arrangement region 10. Examples of the constituent material of the first housing 100 include a resin such as polycarbonate, or a metal such as stainless steel and aluminum.

  The adhesive member 200 is provided so as to surround the first detection electrode pattern 3, the second detection electrode pattern 4, and the opening 9c in plan view. For this reason, when moisture or dust in the atmosphere enters the inside of the first casing 100, the detection is exposed from the protective layer 9 in the first detection electrode pattern 3, the second detection electrode pattern 4, and the opening 9c. The possibility that a part of the wiring 8 for use corrodes can be reduced. Further, the entire adhesive member 200 is located on the protective layer 9. For this reason, when the user's finger F1 presses the protective sheet 13 of the input device X1, the stress concentrates on a part of the adhesive member 200, thereby reducing the possibility that the adhesive member 200 is peeled off. it can.

  In the display device Y1, the adhesive member 200 is provided below the detection wiring 8. For this reason, it is possible to arrange the adhesive member 200 and the detection wiring 8 so as to overlap in plan view. Therefore, it is possible to reduce the size of the display device Y1.

  As a constituent material of the adhesive member 200, the same material as that of the adhesive portion 9b can be used.

The display panel 300 has a role of displaying an image or a moving image. The display panel 300 is disposed to face the input device X1 and is housed in the first housing 100. The display panel 300 according to the present embodiment is a liquid crystal panel using a liquid crystal structure. However, the display panel 300 is not limited to this, and a plasma display, an organic EL display, an FED (Field Emission Display), and an SED (Surface-conduction Electron-). emitter display) or electronic paper.

  The backlight 400 has a role of entering light over the entire lower surface of the display panel 300. The backlight 400 is disposed behind the display panel 300. The backlight 400 includes a light source 401 and a light guide plate 402. The light source 401 is a member that plays a role of emitting light toward the light guide plate 402, and includes a light emitting diode (LED). The light source 401 may be, for example, a cold cathode fluorescent lamp, a halogen lamp, a xenon lamp, or an EL (Electro-Luminescence) instead of the LED. The light guide plate 402 is a member that plays a role of guiding light from the light source 401 substantially uniformly over the entire lower surface of the display panel 300. Note that when a display panel using a self-luminous element is used instead of the display panel 300, the backlight 400 is not necessary.

  The circuit board 500 has a role of supporting electronic components such as a position detection driver 501, a display panel 300 control circuit, a backlight 400 control circuit, a resistor, or a capacitor. The circuit board 500 is disposed behind the backlight 400. The wiring board 11 is connected to the position detection driver 501. Examples of the constituent material of the circuit board 500 include a resin material.

In this way, the display device Y1 can input various types of information by performing an input operation on the input area E1 while seeing through the display panel 300 via the input device X1. When inputting various types of information, the input device X1 may be provided with a function of presenting various tactile sensations such as a feeling of pressing, a feeling of tracing, and a feeling of touch to the user who has input the information. In this case, the base body 2 in the input device X1 includes one or more vibrating bodies (for example, piezoelectric elements), and when a predetermined input operation or a predetermined pressing load is detected, the vibrating body is detected at a predetermined frequency. It can be realized by vibrating.

  As described above, since the display device Y1 includes the input device X1, reliability can be improved.

  Next, the portable terminal Z1 provided with the display device Y1 will be described with reference to FIG.

  As shown in FIG. 9, the mobile terminal Z1 according to the present embodiment is a smartphone terminal. The mobile terminal Z1 is not limited to a smartphone terminal, and may be a mobile phone, a tablet terminal, or a PDA (Personal Digital Assistant), for example.

  The portable terminal Z1 includes a display device Y1, an audio input unit 601, an audio output unit 602, a key input unit 603, and a second housing 604.

  The voice input unit 601 has a role of inputting a user's voice and the like, and includes a microphone or the like. The audio output unit 602 has a role of outputting audio from the other party, and is configured by an electromagnetic speaker or a piezoelectric speaker. The key input unit 603 is composed of mechanical keys. The key input unit 603 may be an operation key displayed on the display screen. The second housing 604 has a role of accommodating the display device Y <b> 1, the voice input unit 601, the voice output unit 602, and the key input unit 603. Note that the second housing 604 may not be provided, and the audio input unit 601, the audio output unit 602, and the key input unit 603 may be accommodated in the first housing 100 of the display device Y1. As a constituent material of the second housing 604, the same material as that of the first housing 100 may be used.

  In addition, the mobile terminal Z1 may include a digital camera function unit, a one-segment broadcasting tuner, a short-range wireless communication unit such as an infrared communication function unit, a wireless LAN module, various interfaces, and the like according to necessary functions. However, illustration and description of these details are omitted.

  As described above, since the mobile terminal Z1 includes the display device Y1, the reliability can be improved.

  Here, the display device Y1 is not limited to the portable terminal Z1 described above, but includes various devices such as an electronic notebook, a personal computer, a copying machine, a game terminal device, a television, a digital camera, or a programmable display used for industrial applications. The electronic device may be provided.

  The above-described embodiment shows a specific example of the embodiment of the present invention, and various modifications are possible. Hereinafter, some main modifications will be described.

[Modification 1]
FIG. 10 is a plan view illustrating a schematic configuration of the input device X2 according to the first modification. FIG. 11 is a cross-sectional view taken along the line VI-VI shown in FIG. 10 and 11, the same reference numerals are given to configurations having the same functions as those in FIGS. 2 and 5, and detailed descriptions thereof are omitted.

  As shown in FIGS. 10 and 11, the input device X2 includes a protective layer 21 instead of the protective layer 9 included in the input device X1. The protective layer 21 has a first protective layer 22 and a second protective layer 23.

The first protective layer 22 has a role of reducing the possibility that the detection wiring 8 is corroded due to contact with the bonding portion 23b. The first protective layer 22 is provided on the second main surface 2B of the base 2 corresponding to the non-input area E2. Specifically, the first protective layer 22 is located on the covering layer 7 corresponding to the non-input area E2 and covers the detection wiring 8. The first protective layer 22 extends on the second main surface 2B of the base 2 corresponding to the input region E1, and covers the first detection electrode pattern 3 and the second detection electrode pattern 4. For this reason, possibility that the 1st detection electrode pattern 3 and the 2nd detection electrode pattern 4 will corrode by contact with the adhesion part 23b can be reduced.

  Further, the thickness D1 of the first protective layer 22 located on the bottom corner portion 24 of the detection wiring 8 is larger than the thickness D2 of the first protective layer 22 located on the detection wiring 8. For this reason, the bottom corner | angular part 24 which the dust in air | atmosphere tends to adhere can be protected effectively. Note that the “bottom corner portion 24” in Modification 1 refers to a corner portion of the detection wiring 8 that is in contact with the coating layer 7. In addition, the “thickness D1 of the first protective layer 22 located on the bottom corner portion 24” in Modification 1 refers to the shortest distance from the bottom corner portion 24 to the surface of the first protective layer 22. In addition, “the thickness D2 of the first protective layer 22 located on the detection wiring 8” in Modification 1 refers to the shortest distance from the surface of the detection wiring 8 to the first protective layer 22. Examples of the constituent material of the first protective layer 22 include silicon dioxide and silicon nitride.

  When the input device X2 is incorporated in the display device Y1, the second protective layer 23 is formed by static electricity that has jumped into the display panel 300 from the outside, as the first detection electrode pattern 3, the second detection electrode pattern 4, and the detection wiring. 8 has a role of reducing the possibility of being applied to 8. The second protective layer 23 has a base portion 23a and an adhesive portion 23b. The base portion 23a is provided on the first protective layer 22 via the adhesive portion 23b. Specifically, the bonding portion 23 b is in contact with the first protective layer 22. As a constituent material of the second protective layer 23, the same material as that of the protective layer 9 can be used.

  By the way, since the thickness D1 of the first protective layer 22 is larger than the thickness D2, the unevenness generated in the first protective layer 22 can be moderated. For this reason, in input device X2, possibility that a bubble may enter between the 1st protective layer 22 and adhesion part 23b can be reduced. Therefore, the possibility that the second protective layer 23 is peeled off can be reduced, and the reliability can be further increased.

[Modification 2]
FIG. 12 is a plan view illustrating a schematic configuration of the input device X3 according to the second modification. 13 is a cross-sectional view taken along the line VII-VII shown in FIG. 12 and 13, the same reference numerals are given to the configurations having the same functions as those in FIGS. 2 and 6, and detailed descriptions thereof are omitted.

  As shown in FIGS. 12 and 13, the input device X <b> 3 further includes a protection member 31. The protective member 31 is provided from the protective layer 9 to the insulating layer 11a. For this reason, it is possible to further reduce the possibility that a part of the detection wiring 8 exposed from the protective layer 9 in the opening 9c absorbs moisture in the atmosphere. In addition, the possibility that dust in the atmosphere adheres to a part of the detection wiring 8 exposed from the opening 9c can be further reduced. Therefore, the possibility that a part of the detection wiring 8 exposed from the protective layer 9 in the opening 9c is corroded can be further reduced.

In the input device X3, the protection member 31 is positioned so as to surround the opening 9c. For this reason, the possibility that a part of the detection wiring 8 exposed from the protective layer 9 in the opening 9c is corroded can be further reduced. In the present specification, “so as to surround the opening 9c” does not have to completely surround the opening 9c, but also includes surrounding a part of the opening 9c. In addition, it is preferable that the protective member 31 completely surrounds the opening 9c because the possibility that a part of the detection wiring 8 is corroded from the protective layer 9 in the opening 9c can be further reduced. .

[Modification 3]
FIG. 14 is a plan view illustrating a schematic configuration of the input device X4 according to the third modification. 15 is a cross-sectional view taken along line VIII-VIII shown in FIG. 16 is a cross-sectional view taken along line IX-IX shown in FIG. 14 to 16, the same reference numerals are given to configurations having the same functions as those in FIGS. 2, 5, and 6, and detailed descriptions thereof are omitted.

  As shown in FIGS. 14 to 16, the input device X4 further includes a reinforcing member 41. The reinforcing member 41 is provided on the second main surface 2B of the base 2 corresponding to the non-input area E2. Specifically, the reinforcing member 41 is located closer to the end face side of the base body 2 than the detection wiring 8 on the coating layer 7 corresponding to the non-input area E2. The protective layer 9 extends to a region where the reinforcing member 41 is located, and the extended protective layer 9 is in contact with the surface of the reinforcing member 41. For this reason, the surface area of the member which the contact part 9b contact | abuts can be enlarged. Therefore, the possibility that the protective layer 9 is peeled off can be reduced.

  In the input device X4, the reinforcing member 41 is present in a region A1 located between the opening 9c and the end surface 2C of the base 2 closest to the opening 9c. For this reason, possibility that peeling will arise in the protective layer 9 located in area | region A1 can be reduced.

  The reinforcing member 41 is preferably provided so as to surround the first detection electrode pattern 3, the second detection electrode pattern 4, and the detection wiring 8. If the reinforcing member 41 is provided so as to surround the first detection electrode pattern 3, the second detection electrode pattern 4, and the detection wiring 8, the possibility that the protective layer 9 is peeled off can be further reduced.

  Moreover, it is preferable that the reinforcement member 41 has electroconductivity. If the reinforcing member 41 has conductivity, it is possible to shield static electricity that has entered the input device X4 from the outside. Therefore, the possibility that the static electricity is applied to the first detection electrode pattern 3, the second detection electrode pattern 4, and the detection wiring 8 can be reduced.

  As a constituent material and a forming method of the reinforcing member 41, the same material as that of the detection wiring 8 can be used.

[Modification 4]
FIG. 17 is a plan view illustrating a schematic configuration of the input device X5 according to the fourth modification. 18 is a cross-sectional view taken along line XX shown in FIG. 17 and 18, the same reference numerals are given to configurations having the same functions as those in FIGS. 2 and 6, and detailed descriptions thereof are omitted.

  As illustrated in FIGS. 17 and 18, the input device X5 includes a protective layer 51 instead of the protective layer 9 included in the input device X1. The protective layer 51 is provided from the second main surface 2B of the base 2 to the end surface 2C. For this reason, possibility that peeling will arise in the protective layer 51 can be reduced more.

  In the input device X5, the protective layer 51 is provided on all end surfaces of the base body 2, but is not limited thereto, and may be provided only on the end surface 2C closest to the opening 9c.

[Modification 5]
FIG. 19 is a cross-sectional view illustrating a schematic configuration of a display device Y2 according to Modification 5. Note that FIG.
In FIG. 8, components having the same functions as those in FIG. 8 are given the same reference numerals, and detailed descriptions thereof are omitted.

  As shown in FIG. 19, the display device Y2 includes a first housing 700 instead of the first housing 100 included in the display device Y1. The first housing 700 has a role of housing the display panel 300. Further, the first housing 700 has a first support portion 701. The input device X <b> 1 is attached to the first support portion 701 via the adhesive member 200 arranged in the arrangement region 10. Further, the first support portion 701 has conductivity.

  Incidentally, the arrangement region 10 of the input device X1 is located below the detection wiring 8. For this reason, the first support portion 701 positioned below the arrangement region 10 is positioned between the detection wiring 8 and the display panel 300. Therefore, in the display device Y2, the possibility that static electricity jumping into the display panel 300 from the outside is applied to the detection wiring 8 can be reduced.

  In the display device Y2, the entire first support portion 701 has conductivity. However, the present invention is not limited to this, and a conductive member is provided inside or on the lower surface of the first support portion 701. Also good. Note that “the lower surface of the first support portion 701” in this specification refers to a surface located on the side close to the display panel 300.

  The adhesive member 200 preferably has a thickness of 0.3 mm or more. If the thickness of the adhesive member 200 is 0.3 mm or more, the possibility that electrical noise generated in the display panel 300 is mixed into the detection wiring 8 can be further reduced.

  Examples of the constituent material of the first housing 700 include metals such as stainless steel and aluminum material.

[Modification 6]
In addition, this invention is not limited to said embodiment and the modifications 1-5, You may combine suitably the input devices X1-X5, display apparatus Y1, Y2, and the portable terminal Z1.

X1 to X5 Input device Y1, Y2 Display device Z1 Portable terminal (electronic device)
2 Substrate 3a First detection electrode 4a Second detection electrode 8 Detection wiring 9, 21, 51 Protective layer 10 Arrangement region 11 Wiring substrate 11a Insulating layer 11b Wiring 22 First protective layer 23 Second protective layer 24 Bottom corner 31 Protection Member 41 Reinforcing member 100,700 First housing (housing)
101, 701 First support part 200 Adhesive member 300 Display panel

Claims (15)

An input device having an arrangement area for arranging an adhesive member,
A substrate;
A detection electrode provided on the substrate;
A detection wiring provided on the substrate and electrically connected to the detection electrode;
A protective layer that is provided on the substrate and covers the detection wiring;
The protective layer is provided with an opening through which a part of the detection wiring is exposed from the protective layer,
In a plan view, the arrangement region surrounds the detection electrode and the opening on the protective layer, and is an area located between the opening and the end surface of the substrate closest to the opening. Including input devices.   The input device according to claim 1, wherein a thickness of the protective layer positioned on a bottom corner portion of the detection wiring is larger than a thickness of the protective layer positioned on the detection wiring. The protective layer has a first protective layer and a second protective layer,
The first protective layer covers the detection wiring,
The thickness of the first protective layer located on the bottom corner of the detection wiring is greater than the thickness of the first protective layer located on the detection wiring,
The input device according to claim 1, wherein the second protective layer is located on the first protective layer. A wiring board having a wiring and an insulating layer that exposes a part of the wiring and covers the remaining part, and the exposed part of the wiring is electrically connected to the detection wiring located in the opening When,
The input device according to claim 1, further comprising: a protective member provided over the protective layer and the insulating layer.   The input device according to claim 4, wherein the protection member is positioned so as to surround the opening.   The input device according to claim 1, wherein the arrangement region is located below the detection wiring. A reinforcing member that is provided on the base and is located on the end face side of the base with respect to the detection wiring;
The input according to claim 1, wherein the protective layer extends in a region where the reinforcing member is located, and the extended protective layer is in contact with a surface of the reinforcing member. apparatus.   The input device according to claim 7, wherein the reinforcing member is located in a region located between the opening and an end face of the base body closest to the opening.   The input device according to claim 8, wherein the reinforcing member surrounds the detection electrode and the opening in a plan view.   The input device according to claim 7, wherein the reinforcing member has conductivity. The protective layer extends to a region where the detection electrode is located,
The input device according to claim 1, wherein the detection electrode is covered with the extended protective layer.   The input device according to claim 1, wherein the protective layer is located from a main surface of the base to an end face of the base. The input device according to any one of claims 1 to 12,
A display panel disposed opposite the input device;
The display panel is housed, and a housing having a first support portion,
The display device, wherein the input device is attached to the first support portion via the adhesive member in the arrangement region.   The display device according to claim 13, wherein the first support part has conductivity and is positioned between the detection wiring and the display panel.   An electronic apparatus comprising the display device according to claim 13 or 14.