TW201910996A - Input device - Google Patents

Abstract

An input device according to the present invention is provided with: a base material; a plurality of first electrodes that extend in a first direction of a detection region of the base material and that are arranged in parallel in a second direction intersecting the first direction; and a plurality of second electrodes that extend in the second direction of the detection region of the base material and that are arranged in parallel in the first direction. In this input device, a first leader line that is provided to one side with respect to the center axis extending in the second direction and a second leader line that is provided to the other side with respect to the center axis are connected to the second electrode which has a portion positioned in a bendable region running through the detection region in the second direction. Thus, accurate position detection can be carried out even when the base material is bent.

Description

Input device

The present invention relates to an input device, and more particularly to an input device that can accurately detect even when a substrate is bent.

In various information processing apparatuses, a translucent input device is disposed in front of the color liquid crystal display panel. This input device is called a touch panel. At the touch panel, an electrostatic capacitance is formed between the electrodes, and the coordinates of the approaching position of the finger are determined according to the change in the movement of the electric charge when the human finger approaches. In order to detect the change in the movement of this charge, an electrostatic capacitance type sensor is used.

In recent years, in order to correspond to a wide variety of devices, it is not only a flat surface, but a touch panel that can be bent is also proposed. Patent Documents 1 to 3 disclose an input device including a bending region and a bending line. In such an input device, a configuration in which a pattern for detection is not provided in a bent region or a configuration in which a pattern of a bent region is made of a material suitable for bending is disclosed.

In Patent Documents 4 and 5, it is disclosed that the detection pattern included in the bending region at the input device is mixed in an adhesive having excellent bending properties. A material with a conductive material (for example, a silver nanowire). [Prior Technical Literature] [Patent Literature]

[Patent Document 1] US Patent Application Publication No. 2016/0188098 [Patent Document 2] US Patent Application Publication No. 2013/0300678 [Patent Document 3] US Patent Application Publication No. 2015/0022732 [Patent Document 4] Japanese Patent Publication No. 2012-027888 [Patent Document 5] Japanese Patent Laid-Open Publication No. 2014-010516

[Problems to be solved by the invention]

In the bendable input device, it is also conceivable to provide a protective layer at the bent portion to improve the bending resistance. However, due to the provision of the protective layer, the thickness is increased and the manufacturing is also made. The increase in engineering and the reasons for rising costs. Moreover, when a conductive material is used, there is a greater concern in terms of deterioration of pattern invisibility, deterioration of ESD resistance, and migration phenomenon than a transparent electrode (for example, ITO).

An object of the present invention is to provide an input device capable of performing accurate detection without bending a protective layer without adding a protective layer or the like. [Means to solve the problem]

In order to solve the above problems, an input device according to one aspect of the present invention includes: a substrate; and a plurality of first electrodes extending in a first direction of the detection region of the substrate and arranged side by side The second direction in which the first direction intersects; and the plurality of second electrodes extend in the second direction of the detection region of the substrate, and are arranged side by side in the first direction. In the input device, the second electrode having a portion located in the bendable region through which the detection region is inserted in the second direction is connected to the second direction. The first lead-out wiring provided on one side of the central axis extending upward and the second lead-out wiring provided on the other side with respect to the central axis.

According to this configuration, even if the substrate is bent at the bendable region and has an influence on the conductivity of the second electrode, at least the first lead wiring and the second lead wiring can be used. One of them ensures the conductivity of the second electrode in the second direction.

In the above input device, the second electrode may be configured to include a plurality of second electrode portions that are arranged side by side in the second direction and a second electrode portion that is adjacent to each other. The connecting portion and the connecting portion are provided with a first connecting portion provided on one side with respect to a central axis extending in the second direction of the bendable region, and are provided on the other side with respect to the central axis The second joint part at the side.

According to this configuration, the connecting portion provided in the bendable region is provided with the first connecting portion provided at one side with respect to the central axis of the bendable region, and relative to Since the center axis is provided at the second connecting portion on the other side, even when the base material is bent along the central axis, the connecting portion is not affected by the bending. For example, even if the second electrode is bent along the central axis and has an influence on the conductivity, the first connection portion and the second connection portion can ensure the conductivity of the second electrode in the second direction.

In the above input device, when the base material is provided so as to be bendable by a radius of curvature (φ/2), between the first connecting portion and the second connecting portion The interval d between the first directions is πφ/2 or more. Thereby, even if the base material is bent by the radius of curvature (φ/2), the first joint portion and the second joint portion are not affected by the bending.

In the input device described above, at least one of the first connecting portion and the second connecting portion may be provided so as to pass through the slit portion provided at the first electrode. Thereby, at least one of the first connecting portion and the second connecting portion can be formed in the same layer as the first electrode.

In the above input device, at least one of the first connecting portion and the second connecting portion may be provided so as to intersect the first electrode. Thereby, it is possible to provide conduction to at least one of the first connection portion and the second connection portion without providing a slit portion at the first electrode.

In the above input device, the second electrode may be configured to include a plurality of second electrode portions that are arranged side by side in the second direction and a second electrode portion that is adjacent to each other. The joint portion is provided at a joint portion in the bendable region, and is disposed at a full extent in the bendable region. Further, when the base material is provided so as to be bendable by a radius of curvature (φ/2), it is preferable that the width of the first direction of the connecting portion is πφ/2 or more. .

According to this configuration, since the connecting portion is provided at the entire area of the bendable region, even when the base material is bent along the central axis, the joint portion is not bent. The impact of the fold. Thereby, even when the base material is bent, the conductivity of the second electrode in the second direction due to the connection portion can be ensured.

In the above input device, when the base material is provided so as to be bendable by a radius of curvature (φ/2), the width of the first direction of the connecting portion may be πφ/2. the above. Thereby, even if the base material is bent by the radius of curvature (φ/2), the joint portion is not affected by the bending.

In the above input device, at least a part of the connecting portion may be provided so as to pass through the slit portion provided at the first electrode. Thereby, even if the joint portion and the first electrode are disposed at the same layer, it is possible to perform pattern layout in which interference is avoided. In the above input device, at least a part of the connection portion may be provided so as to intersect the first electrode. Thereby, interference between the connection portion and the first electrode can be avoided.

In the above input device, the base material may be bent at a position of a central axis of the bendable region. In this case, the base material may be bent by a curvature radius of 0.5 mm or less. Thereby, even when the base material is bent along the central axis, the conductivity of the second electrode in the second direction can be ensured.

In the input device described above, the first electrode and the second electrode may be disposed on the same surface side of the substrate, and the first electrode may be provided in a plurality of rows arranged in the first direction. The first electrode portion and the bridge connecting portion that connects the first electrode portions adjacent to each other at a position intersecting the first electrode and the second electrode. By this, it is possible to simplify the laminated structure as compared with the case where the first electrode and the second electrode are provided in each of the different base materials. [Effects of the Invention]

According to the present invention, it is possible to provide an input device capable of performing accurate detection even if the bending is not performed without adding a protective layer or the like.

Hereinafter, embodiments of the present invention will be described based on the drawings. In the following description, the same components are denoted by the same reference numerals, and the description of the components that have been described is omitted.

(Configuration of Input Device) [Fig. 1] (a) and (b) are plan views exemplified for the input device of the first embodiment. In Fig. 1(a), a whole view of the input device 1 is shown, and in Fig. 1(b), an enlarged view of the portion A of Fig. 1(a) is shown. In the present embodiment, the input device 1 is, for example, a capacitive sensor. In the present specification, the term "transparent" or "transparent" refers to a state in which the visible light transmittance is 50% or more (more preferably 80% or more). Further, the haze value is preferably 6% or less.

As shown in FIG. 1(a), the input device 1 of the present embodiment includes the first electrode 11 and the second electrode 12 which are provided in the position detecting region S of the substrate 10. The substrate 10 is formed of a film-form transparent substrate such as polyethylene terephthalate (PET) or cycloolefin polymer (COP), or a glass substrate. The first electrode 11 and the second electrode 12 are detection electrodes that are detected in the position detection region S and that are in contact (close) with the finger. The first electrode 11 and the second electrode 12 are formed by sputtering or vapor deposition using a transparent conductive material such as ITO (Indium Tin Oxide). The first electrode 11 and the second electrode 12 may be formed of a material containing a metal nanowire (for example, a silver nanowire), or may be partially formed of a different material.

The first electrode 11 extends in the X (first direction) along the surface of the substrate 10, and the second electrode 12 is in the Y direction orthogonal to the X direction along the surface of the substrate 10 ( The second direction) extends over. The first electrode 11 and the second electrode 12 are insulated from each other. In the present embodiment, a plurality of first electrodes 11 are arranged at a specific pitch in the Y direction, and a plurality of second electrodes 12 are arranged at a specific pitch in the X direction.

The first electrode 11 is provided with a plurality of first island-shaped electrode portions 111. In the present embodiment, the plurality of first island-shaped electrode portions 111 are provided in a shape similar to a rhombic shape, and are arranged side by side in the X direction. Further, the second electrode 12 is provided with a plurality of second island-shaped electrode portions 121. The plurality of second island-shaped electrode portions 121 are also provided in a shape similar to a rhombus, and are arranged side by side in the Y direction.

Each of the plurality of first electrodes 11 is connected to a lead-out wiring TX that is led out toward the outside of the position detecting region S. Further, in each of the plurality of second electrodes 12, the lead wires TY led out toward the outside of the position detecting region S are connected to each other. At the input device 1, the change in the current flowing through each of the lead wires TX and TY is detected by a detecting circuit (not shown). For example, when a specific potential is applied to the first electrode 11 and the second electrode 12, if the finger is brought close to the position detecting region S, between the first electrode 11 and the second electrode 12 and the finger, There is a change in electrostatic capacitance. The X and Y coordinates in the position detecting region S in which the finger is approached are determined by detecting the potential drop due to the change in the electrostatic capacitance.

As shown in FIG. 1(b), the first electrode 11 and the second electrode 12 are connected to the adjacent first island-shaped electrode portions 111 and two adjacent islands. The electrode portions 121 are connected to each other at the joint position. At the intersection, the bridge wiring portion 20 is provided via the island-shaped insulating portion 30, and the first electrode 11 and the second electrode 12 are not in contact with each other at the intersection portion.

In the present embodiment, the bridge wiring portion 20 is provided so as to extend between the adjacent two island-shaped electrode portions 111. The bridge wiring portion 20 is provided between the first island-shaped electrode portions 111 which are arranged side by side in the X direction. Thereby, the plurality of first island-shaped electrode portions 111 are in an on state. The island-shaped insulating portion 30 is provided between the bridge wiring portion 20 and the connecting portion 40 described later, and functions to insulate the first electrode 11 and the second electrode 12 at the intersection portion.

The connection portion 40 is provided between the adjacent two island-shaped electrode portions 121 at the second electrode 12. The connection portion 40 is provided between the second island-shaped electrode portions 121 that are arranged side by side in the Y direction. Thereby, the plurality of second island-shaped electrode portions 121 are in an on state. As described above, the bridge wiring portion 20 is provided on the connecting portion 40 via the island-shaped insulating portion 30.

At the position detecting area S of the substrate 10, a bendable area BR penetrating therethrough in the Y direction is provided. Here, the bendable region BR means that when the base material 10 is bent and used (for example, refer to FIG. 5), it is included in a region including a bending center line (a center axis BL to be described later). The substrate 10 is a region of an arc shape (for example, a semicircle). The base material 10 may also be a part of a circular arc shape as a bendable region BR.

At the center of the bendable region BR, a central axis BL extending in the Y direction is provided. In addition, the bendable region BR and the central axis BL are defined for convenience of explanation.

Fig. 2 is a schematic view showing an example of an electrode pattern. In Fig. 2, in order to make the description easy to understand, each pattern is more displayed than the actual situation. Fig. 3 is a schematic cross-sectional view showing an input device of the embodiment. In Fig. 3, a cross-sectional view taken along line A-A shown in Fig. 2 is shown.

The first electrode 11 and the second electrode 12 are formed on the light-transmitting substrate 51 made of PET or COP which is one example of the substrate 10 . On the first electrode 11 and the second electrode 12, a light-transmitting cover film 55 is attached via the light-transmitting adhesive 53. At the light-transmitting cover film 55, for example, a PC is used. The input device 1 having such a layer structure is mounted on a display device 300 such as an organic EL or a liquid crystal, and is attached via a translucent adhesive 56.

In the bendable region BR, the plurality of second island-shaped electrode portions 121 constituting the second electrode 12 are arranged side by side in the Y direction. Further, in the bendable region BR, the slit portions SL1, SL2 are provided at the first electrode 11. The slit portion SL1 is provided on one side of the central axis BL so as to penetrate the first electrode 11 in the Y direction, and the slit portion SL2 penetrates the first electrode 11 in the Y direction. It is disposed at the other side of the center axis BL.

The connecting portion 40 provided in the bendable region BR is provided with a first connecting portion 41 and a second connecting portion 42. The first joint portion 41 is provided along the slit portion SL1 provided at one side of the center axis BL. The first connecting portion 41 is provided in such a manner that two second island-shaped electrode portions 121 adjacent to each other in the Y direction are connected. The first connecting portion 41 is not electrically connected to the first electrode 11 (the first island-shaped electrode portion 111).

The second joint portion 42 is provided along the slit portion SL2 provided at the other side of the center axis BL. The second connecting portion 42 is provided in such a manner that two second island-shaped electrode portions 121 adjacent to each other in the Y direction are connected. The second connecting portion 42 is not electrically connected to the first electrode 11 (the first island-shaped electrode portion 111).

In the bendable region BR, the joint portion 40 is not provided on the center axis BL, and the first joint portion 41 is provided at one side thereof via the center shaft BL, and is disposed on the other side. The second connecting portion 42 is provided at the place. In other words, in the bendable region BR, the first connecting portion 41 and the second connecting portion 42 which are located at positions apart from the central axis BL are plural in the Y direction. The island-shaped electrode portion 121 is in an on state.

Thereby, even when the base material 10 is bent along the central axis BL, the joint portion 40 is not affected by the bending. On the other hand, in the bendable region BR, the conductivity of the second electrode 12 in the Y direction is maintained by the first connecting portion 41 and the second connecting portion 42. For example, even if the second electrode 12 is bent along the central axis BL and has an influence on the conductivity, the first connecting portion 41 and the second connecting portion 42 can ensure the second electrode 12 in the Y direction. Continuity.

Here, when the base material 10 is provided so as to be bendable by a radius of curvature (φ/2), the interval between the first connecting portion 41 and the second connecting portion 42 in the X direction is d. Preferably, it is πφ/2 or more (φ is a diameter). Thereby, even if the base material 10 is bent at a position of the central axis BL by a radius of curvature (φ/2), the first connecting portion 41 and the second connecting portion 42 are not positioned at the substrate 10 The bent portion caused by the bending is not affected by the bending.

In this manner, the first connecting portion 41 and the second connecting portion 42 are less likely to be affected by the bending of the base material 10, and therefore the base material 10 is bent at a radius of curvature (φ/2) = 0.5 mm or less. The folding can also ensure the conductivity of the second electrode 12 at the bendable region BR.

In the present embodiment, the first electrode 11 extending in the X direction is divided by the slit portions SL1 and SL2. Therefore, the lead-out wiring TX1 is connected to the first electrode 11 on one side of the bendable region BR, and the lead-out wiring is connected to the other electrode 11 on the other side of the bendable region BR. TX2. At the detection circuit (not shown), the calculation is performed by adding the capacitances obtained based on the signals of the derived wirings TX1 and TX2 which are mutually identical. Thereby, even if the first electrode 11 is divided, the capacitance change of the first electrode 11 which is one in the X direction can be detected.

The second electrode 12 on one side of the central axis BL other than the bendable region BR is connected to the lead-out wiring TY1, and the second electrode on the other side of the central axis BL is connected to the lead-out wiring. TY2. On the other hand, in the second electrode 12 of the bendable region BR, the first lead-out wiring TY11 is connected to one side of the central axis BL, and the other side is connected to the other side of the central axis BL. 2 Export wiring TY21. As a result, even if the second electrode 12 of the bendable region BR is broken by the central axis BL due to the bending of the substrate 10, the first lead-out wiring TY11 and the second lead-out wiring TY12 are formed. The calculation of the capacitance obtained by the signal can also detect the change in capacitance of the second electrode 12 which is one extending in the Y direction. In addition, it is preferable that at least one of the first lead-out wiring TY11 and the second lead-out wiring TY21 is connected to the bendable region BR, and it is preferable that both of them are outside the bendable region BR. It can be connected.

Fig. 4 is a schematic view showing an example of the layout of the lead wiring. In Fig. 4, in order to make the description easy to understand, each pattern is displayed more than the actual situation. The lead-out wirings TX1, TX2, TY1, TY2, the first lead-out wiring TY11, and the second lead-out wiring TY21 are led out at the peripheral portion of the substrate 10. The lead wires are concentrated on one end side of the substrate 10 and connected to the respective patterns of the flexible substrate 100. The connection position of the flexible substrate 100 is a peripheral portion other than the bendable region BR of the substrate 10. Thereby, even if the base material 10 is bent at the central axis BL of the bendable region BR, the connection position (connection pad portion) with the flexible substrate 100 is not affected by the bending.

Further, in the present embodiment, the flexible substrate 100 is connected to one end side of the substrate 10. In other words, the lead wires TY1, TY2, the first lead wires TY11, and the second lead wires TY21 of the second electrode 12 are led out only to one end side of the substrate 10. Further, the lead wires TX1 and TX2 of the first electrode 11 are led out from both sides to one end side of the substrate 10. Thereby, the flexible substrate 100 can be attached to one end side (one side) of the substrate 10.

(Bending state) FIGS. 5 to 7 are schematic perspective views illustrating a state in which the base material is bent. In Fig. 5, a state in which the base material using the input device 1 of the present embodiment is bent is shown. In Figs. 6 and 7, the input devices 2 and 3 using the comparative example are used. The substrate is shown in a bent state. In any of the examples, the same is true for the state in which the substrate 10 is bent at 180 degrees at the central axis BL of the bendable region BR. The input devices 1, 2, and 3 are disposed at the outer side of the bent substrate 10.

As shown in Fig. 5, when the base material 10 using the input device 1 of the present embodiment is bent, the central axis BL of the bendable region BR is not provided with a link. In the portion 40, the first connecting portion 41 is provided on one side of the central axis BL, and the second connecting portion 42 is provided on the other side. In other words, in the bendable region BR, the second electrode 12 is turned on by the first connecting portion 41 and the second connecting portion 42 which are provided at positions apart from the central axis BL. .

Here, even when the second electrode 12 is divided by the central axis BL by the bending of the substrate 10, the same side can be borrowed. The conduction state is maintained by the first connection portion 41, and the other side is divided, and the conduction state can be maintained by the second connection portion 42. One of the second electrodes 12 that is divided is electrically connected to the first lead-out wiring TY11 via the first connecting portion 41, and the second lead-out wiring TY21 is connected to the second lead-out wiring 42 via the second connecting portion 42. Conduction. Therefore, if the calculation is performed by adding the capacitance obtained based on the signals of the first lead-out wiring TY11 and the second lead-out wiring TY12, the capacitance of the second electrode 12 divided by the central axis BL can be changed as 1 The capacitance of the second electrode 12 is detected and detected.

The bendable region BR when the substrate 10 is bent is the edge portion of the electronic device. By using the input device 1 of the present embodiment, the change in capacitance caused by the second electrode 12 can be accurately detected even at the edge portion of the electronic device. Therefore, the touch action at the edge portion of the electronic device can be performed with good precision.

As shown in FIG. 6, in the case where the substrate 10 using the input device 2 of the comparative example (No. 1) is bent, the second electrode 12 positioned on the central axis BL is plural The second island-shaped electrode portion 121 is formed by the connecting portion 40 between the adjacent second island-shaped electrode portions 121, and the connecting portion 40 is positioned to have the maximum tensile force when bent. The configuration on the central axis BL is configured. Further, one lead-out wiring to be connected to the second electrode 12 is one. Therefore, as long as one of the plurality of connecting portions 40 on the central axis BL is broken due to the bending, the conductivity of the second electrode 12 positioned on the central axis BL is lost. As a result, the position detection related to the second electrode 12 cannot be appropriately performed. As such, in the input device 2 shown in Fig. 6, the accuracy of the position detection at the bendable region BR is easily lowered.

As shown in FIG. 7, in the input device 3 of the comparative example (No. 2), a slit portion SL is provided along the center axis BL at the bendable region BR, along which the slit portion SL is provided. The second island-shaped electrode portion 121 of the second electrode 12 is divided. When the base material 10 is bent, since the pattern is not provided on the central axis BL, the first electrode 11 and the second electrode 12 are not directly affected by the bending. The situation of influence.

However, since the second electrode 12 is divided by the slit portion SL, the position detection at the second electrode 12 cannot be performed in the bendable region BR. Therefore, in the electronic device using the input device 3, the position detection at the edge portion when the bending is performed cannot be performed.

As described above, by using the input device 1 of the present embodiment, it is possible to perform position detection at the bent portion with good precision without providing a complicated pattern structure at the bendable region BR. Moreover, even if the second electrode 12 is affected by the bending in the bendable region BR, it can be used as the detecting electrode. Therefore, the position detection of the electronic device at the edge portion can be accurately performed. Further, even in the bendable region BR, it is possible to select an electrode material such as ITO which does not sacrifice the invisibility, and therefore it is possible to maintain the invisibility in the bendable region BR.

(Other Configuration Examples) FIGS. 8 to 14 are schematic views showing other configuration examples. The input device 1B of the other configuration example (the first one) shown in FIG. 8 is an example in which the first connection portion 41 and the second connection portion 42 have a bridge structure. Further, in the example shown in FIG. 8, both of the first connecting portion 41 and the second connecting portion 42 have a bridging structure, but they may be only one of them. By making the first connecting portion 41 and the second connecting portion 42 into a bridging structure, it is possible to provide the slit portions SL1 and SL2 to the first connecting portion 41 and the second connecting portion 42 without providing the slit portions SL1 and SL2. The second island-shaped electrode portions 121 adjacent to each other in the Y direction are electrically connected.

The input device 1C of the other configuration example (the second one) shown in FIG. 9 is provided in addition to the configuration of the input device 1 shown in FIGS. 1 and 2, and further in the bendable region BR. The bridge wiring portion 20. In addition, since the bridge wiring portion 20 provided in the bendable region BR is easily affected by the bending, it is preferable to set the bridge wiring portion 20 to be disposed outside the bendable region BR in advance. And thicker.

By providing the bridge wiring portion 20 in the bendable region BR as described above, it is possible to ensure the continuity in the X direction without dividing the first electrode 11 in the same row.

The input device 1D of the other configuration example (No. 3) shown in Fig. 10 is provided with a joint portion 45 at the entire periphery of the bendable region BR. That is, the connecting portion 45 is provided to extend in the Y direction with the width of the bendable region BR across the central axis BL. The connection portion 45 is provided between the adjacent two island-shaped electrode portions 121 in the Y direction.

According to the input device 1D, even when the second electrode 12 is divided by the central axis BL, the same side can be divided. The disconnected connecting portion 45 maintains the conductive state, and the other side can maintain the conductive state by the disconnected connecting portion 45. One of the second electrode 12 that has been divided is electrically connected to the first lead-out wiring TY11 via the disconnected connecting portion 45, and the other side is connected via the disconnected portion. 45 is electrically connected to the second lead-out wiring TY21. Therefore, if the calculation is performed by adding the capacitance obtained based on the signals of the first lead-out wiring TY11 and the second lead-out wiring TY12, the capacitance of the second electrode 12 divided by the central axis BL can be changed as 1 The capacitance of the second electrode 12 is detected and detected. As a result, even when the base material 10 is bent along the central axis BL, the joint portion 45 having a wide width is hardly affected by the bending. Thereby, even when the base material 10 is bent, the conductivity of the second electrode 12 via the connection portion 45 in the Y direction can be ensured.

The input device 1E of the other configuration example (the fourth item) shown in FIG. 11 is provided with a plurality of first electrodes 11 provided at the position detecting region S of the substrate 10, and is provided on the substrate 10. A plurality of second electrodes 12 at the position detecting region S. In addition, in FIG. 10, for convenience of description, the first electrode 11 is indicated by a broken line. Each of the plurality of first electrodes 11 extends in the X direction and is arranged side by side in the Y direction. Further, each of the plurality of second electrodes 12 is extended in the Y direction and arranged side by side in the X direction. In other words, the plurality of first electrodes 11 and the plurality of second electrodes 12 are arranged to intersect each other.

When a plurality of first electrodes 11 and a plurality of second electrodes 12 are provided on one side of the substrate 10, the intersection between the first electrode 11 and the second electrode 12 is set. There is an insulating layer (not shown), and an electrostatic capacitance is formed between the two. Further, a plurality of first electrodes 11 may be provided on one side of the substrate 10, and a plurality of second electrodes 12 may be provided on the other side of the substrate 10. In this case, the substrate 10 is interposed at the intersection between the first electrode 11 and the second electrode 12 to constitute a capacitance. Further, two base materials 10 may be provided, and the first electrode 11 may be provided on one of the base materials 10, and the second electrode 12 may be provided on the other base material 10. In this case as well, at the intersection between the first electrode 11 and the second electrode 12, at least one substrate 10 or a dielectric layer like an optical adhesive layer is interposed. Electrostatic capacitance.

In the input device 1E, the second electrode 12 is provided in the bendable region BR of the substrate 10, and the first lead wiring TY11 and the second lead wiring TY21 are connected to the second electrode 12 . The first lead-out wiring TY11 is provided on one side with respect to the central axis BL of the bendable region BR, and the second lead-out wiring TY21 is provided on the other side with respect to the central axis BL.

According to the input device 1E, even when the second electrode 12 is divided by the central axis BL, the same side can be divided by the first one. The wiring TY11 is derived to maintain the ON state, and the other side is maintained in the ON state by the second lead wiring TY21. Therefore, if the calculation is performed by adding the capacitance obtained based on the signals of the first lead-out wiring TY11 and the second lead-out wiring TY12, the capacitance of the second electrode 12 divided by the central axis BL can be changed as 1 The capacitance of the second electrode 12 is detected and detected. Thereby, even when the base material 10 is bent along the central axis BL, the second electrode 12 of the bendable region BR is hardly affected by the bending. Therefore, even when the base material 10 is bent, the conductivity of the second electrode 12 in the Y direction can be ensured.

In addition, even when the first electrode 11 is affected by the bending at the bendable region BR and is broken along the central axis BL, the same is true, as long as it is based on being connected The calculation of the capacitance obtained by the signal of each of the lead-out wiring TX1 at one side of the first electrode 11 and the lead-out wiring TX2 connected to the other side is made possible in the bendable region BR. Location detection.

The input device 1F of the other configuration example (the fifth aspect) shown in FIG. 12 has a configuration in which the first island-shaped electrode portion 111 having a plurality of rhombohedral shapes is provided. The electrode 11 and the second electrode 12 including the plurality of second island-shaped electrode portions 121 having a substantially rhombic shape are disposed at mutually different layers and intersect each other.

In Fig. 13 (a), the layer configuration in the line B-B shown in Fig. 12 is shown. In the layer structure shown in FIG. 13( a ), the first electrode 11 is formed on the first light-transmitting substrate 511 , and the second electrode 12 is formed on the second light-transmitting substrate 512 . The first connecting portion 41 and the second connecting portion 42. Moreover, both are bonded by the light-transmitting adhesive 54. Further, the second electrode 12, the first connecting portion 41, and the second connecting portion 42 which are formed on the second light-transmitting substrate 512 are provided with light-transmitting light via the light-transmitting adhesive 53 Cover film 55. The input device 1F constituted by such a layer structure is mounted on the display device 300 by the light-transmitting adhesive 56.

By providing the first electrode 11 and the second electrode 12 in separate light-transmitting substrates, the electrode layer structure of each of the first electrode 11 and the second electrode 12 can be simplified. The cross-electrode structure is easily fabricated by laminating these electrode layer structures.

In the layer structure described above, the first light-transmitting substrate 511 on which the first electrode 11 is formed and the second electrode 12, the first connection portion 41, and the second connection portion 42 are formed. The two light-transmitting substrates of the light-transmitting substrate 512 are bonded to each other. However, as shown in FIG. 13(b), one light-transmitting substrate 51 may be used. Composition.

In other words, in the layer structure shown in FIG. 13(b), the first electrode 11 is formed on one surface of the light-transmitting substrate 51, and the second electrode 12 is formed on the other surface. The first connecting portion 41 and the second connecting portion 42. A translucent cover film 55 is attached to the side of the light-transmitting substrate 51 on which the second electrode 12, the first connection portion 41, and the second connection portion 42 are formed, via the translucent adhesive 53. . The input device 1F constituted by such a layer structure is mounted on the display device 300 by the light-transmitting adhesive 56.

Regardless of the layer structure shown in FIGS. 13(a) and (b), as shown in FIG. 12, the first lead wiring TY11 is connected to one side of the central axis BL, The second lead-out wiring TY21 is connected to the other side of the central axis BL. As a result, even if the second electrode 12 of the bendable region BR is broken by the central axis BL due to the bending of the substrate 10, the first lead-out wiring TY11 and the second lead-out wiring TY12 are formed. The calculation of the capacitance obtained by the signal can also detect the change in capacitance of the second electrode 12 which is one extending in the Y direction.

Moreover, even when the first electrode 11 is affected by the bending at the bendable region BR and is broken along the central axis BL, the same is true, as long as it is based on being connected The calculation of the capacitance obtained by the signal of each of the lead-out wiring TX1 at one side of the first electrode 11 and the lead-out wiring TX2 connected to the other side can be added as an extension in the X direction. The change in capacitance of one of the first electrodes 11 is detected.

Further, in the same manner as in any of the above-described embodiments, the surface of the base material on which the input devices 1, 1B, 1C, 1D, 1E, and 1F are provided may be bent inside (for example). Inside fold). In particular, in the present embodiment, even when the radius of curvature (φ/2) at the time of bending is 0.5 mm or less, the conductivity of the second electrode 12 can be obtained. Therefore, even if the base material 10 is folded inward, it is difficult to be affected by the bending of the second electrode 12.

As described above, according to the present embodiment, it is possible to provide a structure that is not made of a protective layer or the like without deteriorating the invisibility, and even if it is bent, it can be made correct. Input device for detection.

Further, although the present embodiment has been described above, the present invention is not limited to the examples. For example, in the present embodiment, the particles which are set to the bendable region BR in the Y direction are displayed. However, the bendable region in the X direction may be set. In this case, the connection portion 40 is connected to the first island-shaped electrode portion 111, and the bridge wiring portion 20 is connected to the second island-shaped electrode portion 121, and is disposed at the first island-shaped electrode portion 111. The first connecting portion 41 and the second connecting portion 42 may be connected. Further, the shape of the first island-shaped electrode portion and the second island-shaped electrode portion 121 may be a shape other than a rhomboid shape. Further, the same as those of the above-described embodiments, the addition, the deletion, and the design change of the components are appropriately performed, or the features of the respective embodiments are appropriately combined, as long as the gist of the present invention is provided. It is also included in the scope of the present invention.

1, 1B, 1C, 1D, 1E, 1F‧‧‧ input devices

2, 3‧‧‧ input device

10‧‧‧Substrate

11‧‧‧1st electrode

12‧‧‧2nd electrode

20‧‧‧Bridge wiring department

30‧‧‧ island-shaped insulation

40‧‧‧Connecting Department

41‧‧‧1 link

42‧‧‧Part 2

45‧‧‧Connecting Department

51‧‧‧Transparent substrate

53, 54, 56‧‧‧ Translucent adhesive

55‧‧‧Transparent cover film

100‧‧‧Flexible substrate

111‧‧‧1st island electrode

121‧‧‧2nd island electrode

300‧‧‧ display device

511‧‧‧1st light-transmitting substrate

512‧‧‧2nd light transmissive substrate

BL‧‧‧ central axis

BR‧‧‧ bendable area

S‧‧‧ position detection area

SL, SL1, SL2‧‧‧ slitting

TX, TX1, TX2, TY, TY1, TY2‧‧‧ Export wiring

TY11‧‧‧1st export wiring

TY21‧‧‧2nd export wiring

D‧‧‧ interval

[Fig. 1] (a) and (b) are plan views exemplified for the input device of the first embodiment. [Fig. 2] is a schematic diagram illustrating an electrode pattern. Fig. 3 is a schematic cross-sectional view showing an input device of the embodiment. [Fig. 4] is a schematic diagram showing an example of the layout of the lead wiring. Fig. 5 is a schematic perspective view showing a state in which a base material is bent. Fig. 6 is a schematic perspective view showing a state in which a base material of an input device of a comparative example is bent. Fig. 7 is a schematic perspective view showing a state in which a base material of an input device of a comparative example is bent. FIG. 8 is a schematic view showing another configuration example (No. 1). [Fig. 9] is a schematic diagram showing another configuration example (the second one). FIG. 10 is a schematic view showing other configuration examples (No. 3). [Fig. 11] is a schematic diagram showing another configuration example (the fourth one). [Fig. 12] is a schematic diagram showing another configuration example (part 5). [Fig. 13] (a) and (b) are cross-sectional views exemplified as a layer structure of another configuration example (part 5).

Claims (12)

An input device comprising: a substrate; and a plurality of first electrodes extending in a first direction of the detection region of the substrate and arranged side by side in a direction intersecting the first direction And the second electrode in the second direction extends in the second direction of the detection region of the substrate, and is disposed side by side in the first direction, and has a position in which the detection region is in the first The second electrode at a portion of the bendable region that penetrates in the two directions is connected to the first lead-out wiring provided on one side of the second axis extending in the second direction, And a second lead-out wiring that is provided on the other side with respect to the central axis. The input device according to claim 1, wherein the second electrode includes a plurality of second electrode portions that are arranged side by side in the second direction, and the second electrode that is adjacent to the second electrode a connecting portion that connects the portions, wherein the connecting portion includes a first connecting portion that is provided at one side with respect to a central axis extending in the second direction of the bendable region, and a relative portion The second connecting portion is provided on the other side of the central axis. The input device according to the second aspect of the invention, wherein the first connecting portion and the aforesaid base material are provided so as to be bendable by a radius of curvature (φ/2) The interval d between the first connecting portions in the first direction is πφ/2 or more. The input device according to the second or third aspect of the invention, wherein at least one of the first connecting portion and the second connecting portion passes through a slit portion provided at the first electrode The way is set. The input device according to the second or third aspect of the invention, wherein at least one of the first connecting portion and the second connecting portion is formed to intersect the first electrode Settings. The input device according to claim 1, wherein the second electrode includes a plurality of second electrode portions that are arranged side by side in the second direction, and the second electrode that is adjacent to the second electrode The connecting portion that connects the portions is connected to the connecting portion in the bendable region, and is provided at a total position in the bendable region. The input device according to claim 6, wherein when the base material is provided so as to be bendable by a radius of curvature (φ/2), the first portion of the connecting portion is The width of the direction is πφ/2 or more. The input device according to claim 6 or 7, wherein at least a part of the connecting portion is provided so as to pass through a slit portion provided at the first electrode. The input device according to claim 6 or 7, wherein at least a part of the connecting portion is provided so as to intersect the first electrode. The input device according to claim 1, wherein the base material is bent at a position of the central axis of the bendable region. The input device according to claim 10, wherein the substrate is bent at a radius of curvature of 0.5 mm or less. The input device according to the first aspect of the invention, wherein the first electrode and the second electrode are disposed on a side of the same surface of the substrate, and the first electrode is provided in the first A plurality of first electrode portions that are arranged side by side in the direction, and a bridge connecting portion that connects the adjacent first electrode portions at a position intersecting the first electrode and the second electrode.