WO2013128769A1 - Input device, display device, and electronic device - Google Patents

Abstract

An input device equipped with a substrate having a principal surface, a detection electrode positioned on the principal surface of the substrate, a detection wire electrically connected to the detection electrode and positioned on the principal surface of the substrate, a protective layer for protecting at least the detection wire and positioned on the principal surface of the substrate, and a vibrating body for vibrating the substrate, wherein one section of the protective layer is provided with a first notch, and the vibrating body is positioned in the first notch.

Description

Input device, display device, and electronic device

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

In recent years, when a user operates an input device such as a touch panel, tactile transmission technology that transmits various tactile sensations such as a feeling of pressing, a feeling of tracing, and a feeling of touch to the user is known (for example, patents). Reference 1). Such an input device includes a substrate, a detection electrode provided on the main surface of the substrate, a detection wiring provided on the main surface of the substrate and electrically connected to the detection electrode, and at least detection And a protective layer for protecting the wiring. Further, the input device includes a vibrating body that vibrates the base. Here, the vibrating body is provided on the protective layer. Since the vibrating body is provided on the protective layer, the tactile sensation can be transmitted to the user by the base body bending and vibrating in accordance with the expansion and contraction motion of the vibrating body.

However, in the above input device, since the vibrating body is provided on the protective layer, a part of the protective layer may be peeled off from the main surface of the base body due to the expansion and contraction of the vibrating body. If a part of the protective layer is peeled off from the main surface of the substrate in a state where the vibrating member is provided on the protective layer, vibration due to the expansion and contraction of the vibrating member is hardly transmitted to the substrate. Moreover, since the vibrating body is provided on the protective layer, there is a possibility that vibration due to the expansion and contraction motion of the vibrating body is absorbed by the protective layer.
JP 2003-122507 A

The present invention has been made in view of the above-described problems, and an object thereof is related to an input device, a display device, and an electronic apparatus that can reduce the possibility that vibration of a vibrating body is difficult to be transmitted to a base.

One aspect of the input device of the present invention includes a base having a main surface, a detection electrode provided on the main surface of the base, and a detection electrode provided on the main surface of the base. An electrical connection for detection wiring; and a protective layer provided on the main surface of the base body to protect at least the detection wiring; and a vibrating body for vibrating the base body. A first notch is provided in a part of the layer, and the vibrator is located in the first notch.

One aspect of the display device of the present invention includes the above-described input device, a display panel disposed to face the input device, and a housing in which the display panel is accommodated.

One aspect of the electronic apparatus of the present invention includes the above display device.

It is a top view which shows schematic structure of the input device which concerns on this embodiment. FIG. 2 is a cross-sectional view taken along a cutting line II shown in FIG. FIG. 2 is a cross-sectional view taken along a cutting line II-II shown in FIG. FIG. 3 is a cross-sectional view taken along a cutting line III-III shown in FIG. It is the figure which expanded the part of A1 shown in FIG. It is sectional drawing which shows the other example of the input device which concerns on this embodiment. It is a flowchart which shows the operation example of the input device which concerns on this embodiment. It is sectional drawing which shows schematic structure of the display apparatus which concerns on this embodiment. 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 sectional drawing cut | disconnected along the cutting line IV-IV shown in FIG. It is the figure which expanded the part of B1 shown in FIG. 10 is a plan view showing a schematic configuration of an input device according to Modification 2. FIG. FIG. 15 is a cross-sectional view taken along a cutting line VV shown in FIG. 10 is a plan view illustrating a schematic configuration of an input device according to Modification 3. FIG. FIG. 16 is a cross-sectional view taken along a cutting line VI-VI shown in FIG. 14 is a cross-sectional view showing another example of the input device according to Modification 3. FIG.

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

However, each drawing referred to below is a simplified illustration of the main members necessary for explaining the present invention, out of the constituent members of one embodiment of the present invention, for convenience of explanation. 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 FIG. 1, the input device X1 according to the present embodiment is a projected capacitive touch panel. The input device X1 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, but may be a surface capacitive touch panel. The input device X1 may be, for example, a resistive film type touch panel, a surface acoustic wave type touch panel, an infrared type touch panel, an electromagnetic induction type touch panel, or the like instead of the capacitive touch panel.

As shown in FIGS. 1 to 4, the input device X1 includes a base 2. In FIG. 1, illustration of the flexible substrate F2 connected to the vibrating body 8 is omitted for convenience of explanation.

The substrate 2 has a role of supporting the first detection electrode pattern 3, the second detection electrode pattern 4, the insulator 5, the detection wiring 6, the protective layer 7, the vibrating body 8, and the protective sheet 9. The base 2 has a first main surface 2a, a second main surface 2b, and an end surface 2c. The first main surface 2 a is a surface that is input by the user via the protective sheet 9. The second main surface 2b is a surface located on the opposite side of the first main surface 2a. The end surface 2c is a surface adjacent to the first main surface 2a and the second main surface 2b.

The substrate 2 has an insulating property. The base 2 is translucent to light incident in a direction intersecting the first main surface 2a and the second main surface 2b. In the present specification, “translucency” means transparency to visible light. Moreover, although the outer shape of the base | substrate 2 which concerns on this embodiment is a rectangular shape, it is not restricted to this. The outer shape of the substrate 2 may be a rectangular shape with rounded corners of the substrate 2 in plan view, or may be a square shape, a circular shape, a triangular shape, or the like.

The constituent material of the base 2 includes, for example, a material having translucency such as glass or plastic. Among them, glass is preferable from the viewpoint of visibility. Among the glasses, tempered glass is particularly preferable from the viewpoint of improving the strength of the substrate 2. For this reason, in the input device X1, tempered glass chemically strengthened by ion exchange is used as a constituent material of the base 2.

FIG. 5 is an enlarged view of the portion A1 shown in FIG. As shown in FIG. 5, reinforcing layers 21 a and 21 b are provided on the first main surface 2 a and the second main surface 2 b of the base 2. That is, the base 2 is a reinforcing layer 21a from a front surface to a predetermined distance and a reinforcing layer 21b from a back surface to a predetermined distance. That is, the surface of the reinforcing layer 21a forms the first main surface 2a, and the surface of the reinforcing layer 21b forms the second main surface 2b. Since the reinforcing layers 21a and 21b are formed, the strength of the base 2 can be improved. In addition, the base | substrate 2 which concerns on this embodiment is produced by the following methods, for example.

The glass is brought into contact with an aqueous solution containing potassium ions and heated to replace sodium ions present on the surface layer of the glass with potassium ions. Since sodium ions present on the surface of the glass are replaced with potassium ions, a strengthening layer is formed on the surface of the glass. That is, since potassium ions have a larger particle diameter than sodium ions, it is possible to obtain a stronger compressive stress at the molecular level by closing the holes from which sodium ions have been removed with larger potassium ions. In this way, a chemically strengthened substrate 2 is produced.

Further, as shown in FIGS. 1 to 4, a first detection electrode pattern 3 and a second detection electrode pattern 4 are provided on the second main surface 2b of the base 2 corresponding to the input region E1.

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 the input position in the Y direction shown in FIG. It has a role to detect. The Y direction is the short side direction of the base 2 in plan view. 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 first detection electrode 3a has a role of generating a capacitance with the user's finger F1. A plurality of first detection electrodes 3a are provided side by side in the X direction shown in FIG. The X direction is the long side direction of the base 2 in plan view. 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 adjacent first detection electrodes 3a.

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 first main surface 2a 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 second detection electrode 4a has a role of generating a capacitance with the user's finger 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 so as to straddle the insulator 5 so as to be electrically insulated from the first inter-electrode wiring 3b between the adjacent second detection electrodes 4a. 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. The insulator 5 according to the present embodiment is configured such that its diameter decreases from the second main surface 2b of the base 2 toward the second inter-electrode wiring 4b. The insulator 5 has a convex curved surface from the end to the top. Since the insulator 5 has a convex curved surface, the stress applied to the insulator 5 by the input operation can be relaxed. 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.

Here, the first detection electrode 3a and the second detection electrode 4a according to the present embodiment have a substantially rhombus shape in plan view, but are not limited thereto, and may have a polygonal shape or a circular shape. . If the first detection electrode 3a and the second detection electrode 4a have a substantially rhombus shape in plan view, the gap between the first detection electrode 3a and the second detection electrode 4a can be narrowed. For this reason, the area of the 1st detection electrode 3a provided on the main surface 2a of the base | substrate 2 and the 2nd detection electrode 4a can be enlarged relatively. Therefore, the electrostatic capacitance generated between the first detection electrode 3a and the second detection electrode 4a and the finger F1 can be increased, and the detection sensitivity of the input device X1 is improved.

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 Zin Oxide), IZO (Indium Zinc Oxide), ATO (Al-Doped Zinc Oxide), tin oxide, zinc oxide, or a conductive polymer. .

As a method of forming the first detection electrode pattern 3 and the second detection electrode pattern 4, for example, the above-described material is formed on the main surface 2a of the substrate 2 by sputtering, vapor deposition, or CVD (Chemical Vapor Deposition). To do. 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.

Thus, in the input device X1, the first detection electrode pattern 3 and the second detection electrode pattern 4 are provided on the second main surface 2b located on the opposite side to the first main surface 2a located on the input operation side. This is a capacitive touch panel integrated with a cover glass.

Further, as shown in FIGS. 1 and 4, the detection wiring 6 is provided on the second main surface 2b of the base 2 corresponding to the non-input area E2.

The detection wiring 6 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. In the present embodiment, as shown in FIG. 1, the detection wiring 6 has a non-input area E <b> 2 located on one long side (the upper long side when FIG. 1 is viewed from the paper) of the base 2. And a plurality of non-input areas E2 located on one short side of the base 2 (the short side on the left side when FIG. 1 is viewed from above). One end of the detection wiring 6 is electrically connected to the first detection electrode pattern 3 and the second detection electrode pattern 4, and the other end is located in the external conduction region G1. The external conductive region G1 is connected to the flexible substrate F1. For example, a position detection driver for detecting an input position is provided on the flexible substrate F1.

The detection wiring 6 is made of, for example, a metal thin film so as to be hard and have high shape stability. Examples 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. Examples of the method for forming the metal thin film include a sputtering method, a CVD method, and a vapor deposition method.

Also, as shown in FIGS. 2 to 4, a protective layer 7 is provided on the second main surface 2b of the base 2 corresponding to the input area E1 and the non-input area E2.

The protective layer 7 has a role of protecting the first detection electrode pattern 3, the second detection electrode pattern 4, and the detection wiring 6. As a role of protecting the first detection electrode pattern 3, the second detection electrode pattern 4, and the detection wiring 6, for example, the first detection electrode pattern 3, the second detection electrode pattern 4, and the detection wiring 6 are protected from moisture. The role which protects from the corrosion by moisture absorption, or the role which protects the 1st detection electrode pattern 3, the 2nd detection electrode pattern 4, and the wiring 6 for a detection not to be damaged by the impact from the outside etc. are mentioned. Examples of the constituent material of the protective layer 7 include acrylic resins, silicone resins, rubber resins, urethane resins, silicon dioxide, and silicon nitride. Examples of the method for forming the protective layer 7 include a transfer printing method, a spin coating method, and a slit coating method.

In addition, as shown in FIG. 4, it is preferable that the protective layer 7 is provided apart from the end surface 2c of the base 2. In the example shown in FIG. 4, the protective layer 7 is provided at a predetermined distance L <b> 1 from the end surface 2 c of the base 2. Here, in the present embodiment, L1 is 0.85 to 1.15 mm. When the protective layer 7 is provided apart from the end surface 2c of the base body 2, even when the end surface 2c of the base body 2 is physically or chemically polished when the input device X1 is manufactured, the protective layer together with the polishing. The possibility that 7 is peeled off from the second main surface 2b of the base 2 can be reduced.

In addition, a light shielding layer that shields the non-input area E2 in black, for example, may be provided on the second main surface 2b of the base 2. When the light shielding layer is provided on the second main surface 2b of the substrate 2, the detection wiring 6 is provided on the insulating layer positioned on the light shielding layer.

Further, as shown in FIGS. 1, 4, and 5, a vibrating body 8 is provided on the second main surface 2b of the base 2 corresponding to the non-input area E2.

The vibrating body 8 has a role of bending and vibrating the base 2 when a predetermined input operation by the user is detected. Specifically, the vibrating body 8 repeats expansion and contraction motion in the longitudinal direction of the vibrating body 8, thereby bending the base body 2 in the thickness direction of the base body 2 (hereinafter, this direction is referred to as “vertical direction”). Let Note that the vibration of the vibrating body 8 is not limited to the stretching motion, but may be other motions, for example, longitudinal vibration. Although details will be described later, the vibrating body 8 also has a role of detecting a pressing load on the base 2. The vibrating body 8 according to the present embodiment is a piezoelectric element that performs expansion and contraction based on an applied voltage, but is not limited thereto. As the vibrating body 8, an electromagnetic vibrating body, a spring, a motor, or the like may be used instead of the piezoelectric element.

The vibrating body 8 according to the present embodiment is a unimorph type piezoelectric element. For this reason, the vibrating body 8 has the following configuration. That is, the vibrating body 8 is configured by alternately laminating electrodes and active layers, and an inactive layer is provided at a portion located in the vicinity of the second main surface 2 b of the base 2. Here, the active layer is made of a polarized piezoelectric material. The inactive layer is made of any one of a piezoelectric material, a metal material, and an insulating material that is not polarized. A bimorph type piezoelectric element may be used instead of the unimorph type piezoelectric element.

The vibrating body 8 is provided in the first cutout portion 71. The 1st notch part 71 is provided in a part of protective layer 7 corresponding to the non-input area | region E2. The first cutout portion 71 is a portion constituted by cutting out the protective layer 7 or a portion constituted by not forming the protective layer 7. That is, in this specification, a portion where the protective layer 7 is not provided is referred to as a first cutout portion 71. In the present embodiment, the first notch 71 is an opening. Since the vibrating body 8 is provided in the first cutout portion 71, it is possible to reduce the possibility that a part of the protective layer 7 is peeled off from the second main surface 2b of the base body 2 due to the expansion and contraction of the vibrating body 8. . Further, since the vibrating body 8 is provided in the first cutout portion 71, vibration due to the expansion and contraction motion of the vibrating body 8 is transmitted to the base 2 without passing through the protective layer 7. For this reason, it is possible to reduce the possibility that the vibration due to the expansion and contraction motion of the vibrating body 8 is difficult to be transmitted to the base 2. As a result, the input device X1 can transmit a sufficient tactile sensation to the user.

In this embodiment, as shown in FIGS. 4 and 5, the base 2 has an exposed portion 22 where the second main surface 2 b is exposed in the first cutout portion 71. The vibrating body 8 is provided on the exposed portion 22 via an adhesive member 81. Specifically, the vibrating body 8 is provided on the reinforcing layer 21b via an adhesive member 81. Here, examples of the constituent material of the adhesive member 81 include an acrylic adhesive member, a silicone adhesive member, a rubber adhesive member, and a urethane adhesive member. Since the vibrating body 8 is provided on the reinforcing layer 21 b as the exposed portion 22 via the adhesive member 81, vibration due to the expansion and contraction of the vibrating body 8 is directly transmitted to the base body 2 via the adhesive member 81. . For this reason, it is possible to reduce the possibility that the vibration due to the expansion and contraction motion of the vibrating body 8 is difficult to be transmitted to the base 2.

Further, since the vibrating body 8 is provided in the first cutout portion 71, for example, the following effects other than the above are also obtained. In the manufacturing process of the input device X1, when the vibrating member 8 is attached to the second main surface 2b of the base 2 via the bonding member 81, the bonding member 81 flows out of the bonding region of the vibrating member 8. Further, the outflow of the adhesive member 81 can be prevented on the wall surface 7a of the protective layer 7 constituting the first cutout portion 71. Further, in the manufacturing process of the input device X1, the first cutout portion 71 can be used as an alignment mark when the vibrating body 8 is attached to the second main surface 2b of the base 2. As a result, it is not necessary to separately form an alignment mark, and the cost for forming the alignment mark can be reduced.

In addition, although the example which has the exposed part 22 which the 2nd main surface 2b exposed in the 1st notch part 71 was demonstrated above, it is not restricted to this. As illustrated in FIG. 6, the first cutout portion 71 is configured by partially cutting off the protective layer 7 in the thickness direction, so that the vibrating body 8 is provided in the first cutout portion 71. Also good. That is, the protective layer 7 corresponding to the first cutout 71 has a thickness smaller than that of the protective layer 7 located at another part. The vibrating body 8 is provided on the protective layer 7 having a small thickness. Even if it comprises in this way, possibility that the vibration by the expansion-contraction movement of the vibrating body 8 will become difficult to be transmitted to the base | substrate 2 can be reduced. However, in order to further reduce the possibility that vibration due to the expansion and contraction motion of the vibrating body 8 is difficult to be transmitted to the base body 2, the vibrating body 8 is provided on the exposed portion 22 as shown in FIGS. Preferably it is.

In the present embodiment, as shown in FIG. 1, the vibrating body 8 is in the vicinity of both long sides of the base 2, two along each long side, and in the vicinity of both short sides of the base 2. , Two along each short side, a total of four is provided, but is not limited thereto. For example, two vibrating bodies 8 may be provided in the vicinity of both long sides of the base body 2 along each long side. Two vibrating bodies 8 may be provided in the vicinity of both short sides of the base 2 along the short sides.

In the present embodiment, since four vibrating bodies 8 are provided, four first cutout portions 71 are also provided corresponding to the vibrating bodies 8 as shown in FIG.

Further, the flexible substrate F2 is connected to the vibrating body 8 via a conductive member 82 at a portion opposite to the portion where the adhesive member 81 is provided. Examples of the conductive member 82 include solder, anisotropic conductive adhesive, and the like. A voltage is applied to the vibrating body 8 via the flexible substrate F2 and the conductive member 82. When a voltage is applied to the vibrating body 8, the vibrating body 8 expands and contracts. Here, for example, a tactile transmission driver is provided on the flexible substrate F2.

Further, in the present embodiment, as shown in FIG. 1, the detection wiring 6 is located in a region that does not overlap with a region where the vibrating body 8 is located in a plan view. Specifically, the wiring 6 for detection is located in the area | region which does not overlap with the 1st notch part 71 in planar view. Thereby, the distance between the vibrating body 8 and the detection wiring 6 can be relatively increased. For this reason, the influence on the wiring 6 for a detection by the voltage applied to the vibrating body 8 can be reduced. Therefore, in the input device X1, the possibility that the detection sensitivity of the input position is reduced can be reduced.

Further, as shown in FIGS. 1 to 5, a protective sheet 9 is provided on the first main surface 2a of the base 2 corresponding to the input area E1 and the non-input area E2.

The protective sheet 9 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 9 is provided over the entire surface of the first main surface 2 a of the base 2 via the adhesive member 91. In addition, the protective sheet 9 may be provided only on the 1st main surface 2a of the base | substrate 2 corresponding to the input area E1. Examples of the protective sheet 9 include polyester film, polypropylene film, polyethylene film, glass, or plastic. In addition, as a constituent material of the adhesive member 91, the same material as that of the adhesive member 81 can be used.

Next, an operation example of the input device X1 will be described with reference to FIG.

In the following, an operation example of the input device X1 in the case of transmitting a pressing feeling to the user in the tactile transmission will be described. However, the input device X1 is other than the pressing feeling, for example, a feeling of tracing, a feeling of touch, etc. Of course, the present invention can also be applied to transmitting various tactile sensations.

As shown in FIG. 7, when the user presses the base 2 via the protective sheet 9, the vibrating body 8 detects the pressing load on the base 2 (Op1). Here, the load detection function of the vibrating body 8 will be described. That is, when the user presses the base 2 via the protective sheet 9, the base 2 is bent downward. When the base 2 is bent downward, the vibrator 8 is also bent downward. That is, the amount of bending of the vibrating body 8 changes according to the pressing load on the base 2. In this embodiment, since the vibrating body 8 is a piezoelectric element, it can be converted into a voltage corresponding to the amount of bending. As a result, the pressing load on the base 2 can be detected by the vibrating body 8. In addition, although the example which implement | achieved the load detection function with the vibrating body 8 was demonstrated above, you may implement | achieve with not only this but load sensors, such as a strain sensor, for example.

Then, the tactile transmission driver determines whether or not the pressing load detected in Op1 is equal to or greater than the threshold when the input operation by the user is a pressing operation on the input object displayed on the display screen ( Op2).

If the tactile transmission driver determines that the pressing load detected at Op1 is equal to or greater than the threshold (YES at Op2), the tactile transmission driver causes the vibrating body 8 to expand and contract in the longitudinal direction of the vibrating body 8 (Op3). Then, the base body 2 is curved and vibrated in the vertical direction by the vibrating body 8 that is expanded and contracted at Op3 (Op4). Thereby, a pressing feeling is transmitted to the user who pressed the base body 2 through the protective sheet 9. On the other hand, if the tactile sensation transmission driver determines that the pressing load detected at Op1 is less than the threshold (NO at Op2), the process of FIG. 7 ends.

As described above, in the input device X1, the possibility that the vibration of the vibrating body 8 is difficult to be transmitted to the base body 2 can be reduced.

Next, the display device Y1 provided with the input device X1 will be described with reference to FIG.

As shown in FIG. 8, the display device Y1 according to the present embodiment includes an input device X1, a liquid crystal panel 101, a backlight 102, a circuit board 103, and a first housing 104.

The liquid crystal panel 101 is a display panel using a liquid crystal composition for display. The liquid crystal panel 101 is disposed to face the input device X1 through the space S1. Note that a display panel such as a plasma panel, an organic EL panel, or electronic paper may be used instead of the liquid crystal panel 101. Here, the organic EL panel is a display panel using a substance that emits light when a voltage is applied. Specifically, in the organic EL panel, a light emitting body using an organic material such as diamine is vapor-deposited on a substrate, and display is performed by applying a DC voltage of 5 to 10V. In the case where an organic EL panel is used instead of the liquid crystal panel 101, the backlight 102 is not necessary.

The backlight 102 includes a light source 102a and a light guide plate 102b. The light source 102a has a role of emitting light toward the light guide plate 102b. The light source 102 includes, for example, an LED (Light （Emitting Diode). Instead of the LED, a cold cathode fluorescent lamp, a halogen lamp, a xenon lamp, or an EL (Electro-Luminescence) may be used. The light guide plate 102b has a role for guiding light from the light source 102a substantially uniformly over the entire lower surface of the liquid crystal panel 101.

The circuit board 103 is a plate-like or film-like board constituting an electronic circuit by mounting components such as an IC (Integrated Circuit), a resistor, and a capacitor on the surface, and connecting the components by wiring. The circuit board 103 is disposed on the back side of the backlight 102. The circuit board 103 is provided with a connector. For example, the flexible board F1 and the flexible board F2 are inserted into this connector.

The first housing 104 has a role of accommodating the liquid crystal panel 101, the backlight 102, and the circuit board 103. Examples of the constituent material of the first housing 104 include a resin such as polycarbonate or a metal such as stainless steel or aluminum.

Moreover, the first housing 104 has a support member 104a. The support member 104a is provided so as to surround the input area E1. The support member 104a has a role of supporting the non-input area E2 of the input device X1.

Since the display device Y1 includes the input device X1, it is possible to reduce the possibility that the vibration of the vibrating body 8 is difficult to be transmitted to the base body 2.

Next, the portable terminal P1 provided with the display device Y1 will be described with reference to FIG.

As shown in FIG. 9, the mobile terminal P1 according to the present embodiment is an electronic device such as a mobile phone, a smartphone, or a PDA (Personal Digital Assistant). The portable terminal P1 includes a display device Y1, an audio input unit 201, an audio output unit 202, a key input unit 203, and a second housing 204.

The voice input unit 201 is composed of, for example, a microphone or the like, and inputs a user's voice or the like. The audio output unit 202 includes a speaker or the like, and outputs audio from the other party. The key input unit 203 is configured by, for example, a mechanical key. The key input unit 203 may be an operation key displayed on the display screen. The second housing 204 has a role of accommodating the display device Y1, the audio input unit 201, the audio output unit 202, and the key input unit 203.

In addition, the mobile terminal P1 may include a short-distance wireless communication unit such as a digital camera function unit, a one-segment broadcasting tuner, an infrared communication function unit, and various interfaces, depending on the required functions. The detailed illustration and description thereof will be omitted.

Since the portable terminal P1 includes the display device Y1, it is possible to reduce the possibility that the vibration of the vibrating body 8 is difficult to be transmitted to the base body 2.

In addition, although the example which provided the audio | voice input part 201 in the portable terminal P1 was demonstrated above, it is not restricted to this. That is, the voice input unit 201 may not be provided in the mobile terminal P1.

Moreover, although the portable terminal P1 demonstrated the example provided with the 2nd housing | casing 204 which accommodates the display apparatus Y1, the audio | voice input part 201, the audio | voice output part 202, and the key input part 203 above, it is not restricted to this. Absent. Instead of providing the second casing 204 separately and independently, the first casing 103 in the display device Y1 may be a casing of the mobile terminal P1.

Furthermore, the display device Y1 is a variety of electronic devices such as a programmable display, an electronic notebook, a personal computer, a copying machine, a game terminal device, a television, a digital camera, etc. used in industrial applications instead of the portable terminal P1. The 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 cutting line IV-IV shown in FIG. FIG. 12 is an enlarged view of the portion B1 shown in FIG. 10 to 12, components having the same functions as those in FIGS. 1, 4 and 5 are given the same reference numerals, and detailed descriptions thereof are omitted.

As shown in FIG. 12, the input device X2 has a second notch 211b in the reinforcing layer 21b corresponding to the first notch 71. That is, the second cutout portion 211b is a portion configured by cutting out the reinforcing layer 21b or a portion configured by not forming the reinforcing layer 21b. In addition, the second cutout portion 211 b is provided in the first cutout portion 71.

The vibrating body 8 according to Modification 1 is provided in the second notch 211b. Specifically, the vibrating body 8 is provided in the second cutout portion 211 b via the adhesive member 81. Since the vibrating body 8 is provided in the second cutout portion 211b, the vibration due to the expansion and contraction motion of the vibrating body 8 is transmitted to the base 2 without passing through the reinforcing layer 21b. For this reason, it is possible to further reduce the possibility that vibration due to the expansion and contraction motion of the vibrating body 8 is difficult to be transmitted to the base 2.

[Modification 2]
FIG. 13 is a plan view illustrating a schematic configuration of the input device X3 according to the second modification. FIG. 14 is a cross-sectional view taken along the cutting line VV shown in FIG. 13 and 14, the same reference numerals are given to configurations having the same functions as those in FIGS. 1 and 4, and detailed descriptions thereof are omitted.

As shown in FIG. 13, in the input device X3, the vibrating body wiring 61 is provided on the second main surface 2b of the base 2 corresponding to the non-input area E2. The vibrating body wiring 61 has a role of applying a voltage to the vibrating body 8 and a role of detecting a voltage generated by the vibrating body 8 in accordance with the amount of bending of the vibrating body 8. The vibrating body wiring 61 according to the present embodiment is provided in a frame shape so as to surround the input region E1 so as to overlap the vibrating body 8 in plan view. A part of the vibrator wiring 61 is provided on the exposed portion 22. One end and the other end of the vibrator wiring 61 are located in the external conduction region G1. The external conductive region G1 is connected to the flexible substrate F3. For example, a position detection driver for detecting an input position and a tactile sense transmission driver are provided on the flexible substrate F3.

The constituent material of the vibrator wiring 61 is the same as that of the detection wiring 6.

As shown in FIG. 14, a part of the vibrating body wiring 61 provided on the exposed portion 22 and the vibrating body 8 are electrically connected via a conductive member 82. Although not shown, actually, the vibrating body 8 is provided with a surface electrode, and the surface electrode of the vibrating body 8 and a part of the wiring for the vibrating body 61 are electrically connected via the conductive member 82. Connected to. As a result, a voltage is applied to the vibrating body 8 via the flexible substrate F3, the vibrating body wiring 61, and the conductive member 82. When a voltage is applied to the vibrating body 8, the vibrating body 8 expands and contracts.

Thus, in the input device X3, there is no need to connect a flexible substrate to each of the plurality of vibrating bodies 8. That is, in the input device X3, the detection wiring 6 and the vibrating body wiring 61 can be electrically connected to the outside only by using one flexible substrate F3. For this reason, in the input device X3, the number of flexible substrates used can be reduced, and the manufacturing cost can be reduced.

[Modification 3]
FIG. 15 is a plan view illustrating a schematic configuration of the input device X4 according to the third modification. 16 is a cross-sectional view taken along the cutting line VI-VI shown in FIG. 15 and 16, the same reference numerals are given to configurations having the same functions as those in FIGS. 1 and 4, and detailed descriptions thereof are omitted.

As shown in FIG. 16, in the input device X4, the vibrating body 8 is provided on the exposed portion 22 via an adhesive member 81a. The adhesive member 81a has a light shielding property. When the adhesive member 81a has light shielding properties, the possibility that the vibration body 8 is visually recognized by the user can be reduced. As a method for providing the light shielding property to the adhesive member 81a, for example, an acrylic adhesive member, a silicone adhesive member, a rubber adhesive member, a urethane adhesive member, or the like includes a black material such as carbon, titanium, or chromium. For example.

Note that, as shown in FIG. 17, a light shielding film 83 may be provided on at least the upper surface of the vibrating body 8. If the light shielding film 83 is provided on at least the upper surface of the vibrating body 8, the possibility that the vibrating body 8 is visually recognized by the user can be further reduced. Here, the upper surface of the vibrating body 8 refers to a surface on the side close to the second main surface 2b of the base body 2 among the two surfaces of the vibrating body 8 facing the second main surface 2b of the base body 2. In FIG. 17, an example in which the light shielding film 83 is provided on the upper surface and side surfaces of the vibrating body 8 is illustrated, but the light shielding film 83 may be provided only on the upper surface of the vibrating body 8.

Here, as shown in FIG. 17, if the light shielding film 83 is provided not only on the upper surface but also on the side surface of the vibrating body 8, the vibrating body 8 can be visually recognized by the user even when looking into the input device X4 from an oblique direction. This is preferable because the possibility of being lost is further reduced.

[Modification 4]
In the above-described embodiment, the example of the display device Y1 including the input device X1 has been described. However, any one of the input devices X2 to X4 may be employed instead of the input device X1. Further, a portable terminal including a display device that employs any one of the input devices X2 to X4 may be employed. Furthermore, you may combine the above-mentioned embodiment and modification suitably.

[Modification 5]
Furthermore, in the above-described embodiment and modification, the example in which the input device is applied to the tactile transmission technology has been described, but the present invention is not limited thereto. In addition to the tactile sensation transmission technique, the present invention can also be applied to, for example, a speaker technique that outputs a sound by bending and vibrating a base, or a bone conduction technique that can listen to sound through bone conduction. Of course, it can be applied to the cartilage conduction technique among the bone conduction techniques.

X1 to X4 Input device Y1 Display device P1 Portable terminal (electronic device)
2 Bases 21a, 21b Reinforcing layer 211b Second cutout portion 22 Exposed portion 3a First detection electrode 4a Second detection electrode 6 Wiring for detection 61 Wiring for vibration body 7 Protective layer 71 First cutout portion 8 Vibration body 81, 81a Adhesive member 82 conductive member 83 light shielding film 101 liquid crystal panel (display panel)
104 First housing (housing)

Claims (10)

A substrate having a main surface;
A detection electrode provided on the main surface of the substrate;
A wiring for detection provided on the main surface of the base body and electrically connected to the detection electrode;
A protective layer provided on the main surface of the substrate, and protecting at least the detection wiring;
A vibrating body that vibrates the base body,
A first notch is provided in a part of the protective layer;
The input device, wherein the vibrator is located in the first cutout. The substrate is made of glass,
The base body includes a reinforcing layer on the main surface,
The reinforcing layer is provided with a second notch corresponding to the first notch,
The input device according to claim 1, wherein the vibrating body is located in the second notch. The base has an exposed portion in which the main surface is exposed from the protective layer in the first cutout portion;
The input device according to claim 1, wherein the vibrating body is provided on the exposed portion. Further comprising a vibrator wiring provided on the main surface of the base,
The input device according to claim 3, wherein a part of the wiring for the vibrating body is provided on the exposed portion and is electrically connected to the vibrating body via a conductive member. The vibrating body is provided on the main surface of the base via an adhesive member,
The input device according to any one of claims 1 to 4, wherein the adhesive member has a light shielding property. The input device according to any one of claims 1 to 5, wherein a light shielding film is provided on at least an upper surface of the vibrator. The input device according to any one of claims 1 to 6, wherein the detection wiring is located in a region that does not overlap with a region where the vibrating body is located in a plan view. An input device according to any one of claims 1 to 7;
A display panel disposed opposite the input device;
And a housing in which the display panel is accommodated. The display device according to claim 8, wherein the display panel is a liquid crystal panel or an organic EL panel. An electronic apparatus comprising the display device according to claim 8.

Images