Touch sensing device

Abstract

The present invention provides a touch sensing device with improved water resistance and an improved user experience when operating the touch sensing device. The touch sensing device (D1) includes a sensor (300) and a waterproof layer (410). The sensor (300) is a capacitive, resistive, or optical touch sensor and is configured to detect a target approaching the sensor (300) from the Z-direction side. The waterproof layer (410) is composed of a waterproof elastic material, disposed relative to the sensor (300) on the Z-direction side, and covers at least a portion of the sensor (300).

Description

Technical Field

[0001] This invention relates to touch sensing devices. Background Technology

[0002] JP 2014-086344 A discloses a conventional touch sensing device. The touch sensing device includes a sensor, a protective film, and first and second insulating films. The sensor includes a sensor circuit board and sensor electrodes. The sensor circuit board has a first side and a second side facing each other. The protective film is disposed on the first side of the sensor circuit board and has a touch area. The sensor electrodes are capacitance sensing electrodes disposed on the second side of the sensor circuit board. The capacitance change caused by a human finger touching the touch area is output as a signal from the sensor electrodes. The first insulating film is disposed on the second side of the sensor circuit board covering the sensor electrodes. The second insulating film is disposed on the first insulating film and has a graphic for display.

[0003] A backlight is provided below the second insulating film to illuminate the pattern in the second insulating film. The first insulating film has such transmittance that a viewer can visually identify the pattern of the second insulating film displayed on the touch area when the backlight is on, but cannot visually identify the pattern of the second insulating film displayed on the touch area when the backlight is off. Summary of the Invention

[0004] Technical issues

[0005] Due to aging or other reasons, the protective film may be scratched or torn, increasing the likelihood of water entering through scratches or cracks. Furthermore, the sensor circuit board is made of a dielectric material such as soda-lime glass and is located directly beneath the protective film. In other words, the sensor circuit board is a rigid plate located directly beneath the protective film, providing a stiff feel to the touch area of ​​the protective film.

[0006] The present invention provides a touch sensing device that has improved water resistance and provides an improved user experience when operating the touch sensing device.

[0007] Solution to the problem

[0008] A touch sensing device according to an aspect of the invention may include a sensor and a water shielding layer. The sensor is a capacitive, resistive, or optical touch sensor and is configured to detect a target approaching the sensor from one side in a first direction. The first direction is the thickness direction of the sensor. The water shielding layer is composed of a waterproof elastic material, disposed on one side relative to the sensor in the first direction, and covers at least a portion of the sensor.

[0009] In this type of touch sensing device, liquids such as water or sweat from one side in the first direction are blocked by the waterproof layer and have difficulty reaching the sensor located on the other side of the waterproof layer in the first direction. Therefore, the touch sensing device has improved water resistance. Furthermore, the waterproof layer is configured to elastically deform when pressed by a detection target from one side in the first direction. This configuration provides an improved user experience when operating the touch sensing device.

[0010] The projected area of ​​the waterproof layer in the plan view on one side in the first direction (hereinafter referred to as the "projected area in the plan view") can be smaller than the projected area of ​​the sensor.

[0011] Alternatively, the projected area of ​​the waterproof layer in the plan view can be substantially the same as or larger than the projected area of ​​the sensor. In this case, the waterproof layer can be positioned on one side relative to the sensor in the first direction and can cover substantially the entire sensor.

[0012] The waterproof layer may include a first main surface on one side of the first direction, a second main surface on the other side of the first direction, and a side surface intersecting the second main surface. The second main surface of the waterproof layer may be in surface contact with the first main surface of the sensor, or alternatively, may be in contact with the first main surface of the sensor via an interlayer member disposed between them.

[0013] The touch sensing device according to any of the above aspects may further include an exhaust layer. The exhaust layer may be disposed between the waterproof layer and the sensor, and may include a first main surface on one side of the first direction, a second main surface on the other side of the first direction, and a side surface intersecting the second main surface. In this case, the second main surface of the exhaust layer is in surface contact with the first main surface of the sensor, or alternatively, in contact via an interlayer member disposed between them.

[0014] The touch sensing device according to any of the foregoing aspects may further include at least one venting path. The at least one venting path may be disposed on at least one of the second main surface of the waterproof layer and the first main surface of the sensor, and may be open to the at least one surface and to a side intersecting the at least one surface. Alternatively, the at least one venting path may be disposed in an interlayer member, and may be open to the at least one of the second main surface of the waterproof layer and the first main surface of the sensor, and may be open to a side of the interlayer member.

[0015] Alternatively, the at least one exhaust path may be disposed on at least one of the second main surface of the exhaust layer and the first main surface of the sensor, and may be open to the at least one surface and to a side intersecting with the at least one surface. Alternatively, the at least one exhaust path may be disposed in an interlayer member, and may be open to the at least one of the second main surface of the exhaust layer and the first main surface of the sensor and to a side of the interlayer member.

[0016] The venting layer may be composed of an open-cell foam material, within which a plurality of interconnected bubbles are disposed. The plurality of bubbles in the venting layer include a first bubble open to a second main surface of the venting layer, a second bubble open to a side surface of the venting layer, and at least one third bubble connecting the first and second bubbles. The first bubble, the second bubble, and at least one third bubble may constitute the at least one venting path.

[0017] The sensor may include at least one sensor layer and at least one first electrode. In this case, the at least one sensor layer may include a first sensor layer. The first sensor layer may include a first main surface on one side of a first direction and a second main surface on the other side of the first direction. The at least one first electrode may be disposed on at least one of the first main surface and the second main surface of the first sensor layer. The at least one first electrode may be configured such that the signal of the first electrode or each of the first electrodes changes according to a change in capacitance between the detected target and the first electrode or each of the first electrodes, the change being caused by the detected target approaching from one side of the first direction.

[0018] The sensor may also include at least one second electrode on at least one of the first main surface and the second main surface of the first sensor layer.

[0019] The at least one sensor layer of the sensor may further include a second sensor layer located on the opposite side of the first sensor layer in the first direction. The second sensor layer may include a first main surface on one side of the first direction and a second main surface on the opposite side of the first direction. The at least one second electrode may not be disposed on at least one of the first and second main surfaces of the first sensor layer, but rather on at least one of the first and second main surfaces of the second sensor layer.

[0020] The at least one first electrode can be configured such that the signal of the first electrode or each of the first electrodes changes according to a change in capacitance between the first electrode or each of the first electrodes and the second electrode or each of the second electrodes, the change being caused by the detection target approaching from one side in the first direction.

[0021] The at least one first electrode can be configured such that the signal of the first electrode or each of the first electrodes changes according to a first change in capacitance between the first electrode or each of the first electrodes and the detection target, and that the signal of the first electrode or each of the first electrodes changes according to a second change in capacitance between the first electrode or each of the first electrodes and a second electrode or each of the second electrodes, the first change and the second change being caused by the detection target approaching from one side in a first direction.

[0022] The touch sensing device according to any of the foregoing aspects may further include an outer layer or cover and at least one first intermediate layer. The outer layer or cover may include a touch area to be contacted by a detection target from one side in a first direction. In this case, the at least one first intermediate layer may include a waterproof layer. The at least one first intermediate layer may also include a venting layer.

[0023] When an outer layer is provided, the at least one first intermediate layer can be inserted between the outer layer and the sensor, and the waterproof layer can be disposed on the opposite side of the first direction relative to at least a portion of the outer layer.

[0024] When a cover is provided, the at least one first intermediate layer can be inserted between the cover and the sensor.

[0025] The outer layer or cover may have through-holes. In this case, the waterproof layer can block or cover the through-holes of the outer layer from the other side of the first direction.

[0026] The outer layer or cover may include multiple parts, and two adjacent parts may be joined together. The waterproof layer may make face contact with the joint of the two adjacent parts from the other side of the first direction.

[0027] The touch sensing device according to any of the above aspects may also include a housing.

[0028] The housing can be configured to support the sensor. The projected area of ​​the waterproof layer in a plan view can be larger than the projected area of ​​the sensor. The waterproof layer can be positioned between the outer layer and the combination of the sensor and the housing.

[0029] When a cover is provided, the touch sensing device may also include an outer layer. The outer layer may have an opening that replaces the touch area. The cover can be exposed through or contained within the opening in the outer layer.

[0030] When a cover is provided, the touch sensing device may further include a second intermediate layer located between the outer layer and the housing. The second intermediate layer may include a receiving hole. The receiving hole of the second intermediate layer can accommodate the at least one first intermediate layer.

[0031] The at least one first intermediate layer may further include a printed layer. The printed layer may include at least one translucent portion and opaque portions other than the at least one translucent portion. The waterproof layer may be translucent.

[0032] If the second intermediate layer is omitted, the housing may have a receiving portion, and the lid may be exposed through or contained within the receiving portion. Attached Figure Description

[0033] Figure 1 These are front, top, and left perspective views of a touch sensing device according to a first embodiment of the present invention.

[0034] Figure 2A The connector of the first embodiment is along Figure 1 A schematic end view taken from 2A-2A.

[0035] Figure 2B The connector of the first embodiment is in Figure 2A A schematic enlarged view of part α in the diagram.

[0036] Figure 3A This is a first variant of the connector of the first embodiment. Figure 2A Corresponding schematic end view.

[0037] Figure 3B The second variant of the connector of the first embodiment is... Figure 2A Corresponding schematic end view.

[0038] Figure 3C This is a third variation of the connector of the first embodiment. Figure 2A Corresponding schematic end view.

[0039] Figure 4A This is a fourth variation of the connector of the first embodiment. Figure 2B The corresponding schematic enlarged view.

[0040] Figure 4B This is the fifth variant of the connector in the first embodiment. Figure 2B The corresponding schematic enlarged view.

[0041] Figure 5A The sixth variant of the connector of the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0042] Figure 5B The seventh variant of the connector of the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0043] Figure 6 The eighth variant of the connector of the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0044] Figure 7 The ninth variant of the connector of the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0045] Figure 8A The tenth variant of the connector of the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0046] Figure 8B This is the eleventh variation of the connector in the first embodiment. Figure 2B The corresponding schematic enlarged view.

[0047] Figure 9A It is a touch sensing device according to the second embodiment of the present invention and Figure 2A Corresponding schematic end view.

[0048] Figure 9B The first variant of the connector in the second embodiment is related to... Figure 2A Corresponding schematic end view.

[0049] Figure 9C This is a second variant of the connector in the second embodiment. Figure 2A Corresponding schematic end view.

[0050] Figure 10A It is a touch sensing device according to the third embodiment of the present invention and Figure 2A Corresponding schematic end view.

[0051] Figure 10B The first variant of the connector in the third embodiment is related to... Figure 2A Corresponding schematic end view.

[0052] Figure 10C The second variant of the connector in the third embodiment is related to... Figure 2A Corresponding schematic end view.

[0053] Figure 11A The twelfth variant of the connector in the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0054] Figure 11B The thirteenth variant of the connector in the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0055] Figure 12A The fourteenth variation of the connector of the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0056] Figure 12B The fifteenth variation of the connector of the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0057] Figure 13A The sixteenth variant of the connector of the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0058] Figure 13B The seventeenth variant of the connector of the first embodiment is... Figure 2B The corresponding schematic enlarged view.

[0059] List of labels

[0060] D1, D2, D3: Touch sensing devices

[0061] 100, 100': Shell

[0062] 200, 200': Outer layer

[0063] 300: Sensor

[0064] 310: First Sensor Layer

[0065] 311: First main face; 312: Second main face; 313: Side face

[0066] 320a: First electrode; 320b: Second electrode

[0067] 330: Second Sensor Layer

[0068] 331: First main face; 332: Second main face

[0069] 400: Intermediate Layer (First Intermediate Layer)

[0070] 410: Waterproof layer

[0071] 411: First main face; 412: Second main face; 413: Side face

[0072] 420: Exhaust layer

[0073] 421: First main face; 422: Second main face; 423: Side face; 424a: First bubble; 424b: Second bubble; 424c: Third bubble

[0074] 500: Lid

[0075] 600: Intermediate Layer (Second Intermediate Layer)

[0076] P1: Exhaust Path

[0077] P2: Exhaust path

[0078] U: Sensor unit Detailed Implementation

[0079] The first, second, and third embodiments of the present invention, as well as variations thereof, are described below. It should be noted that the components of the described embodiments and variations thereof can be combined in any possible manner. It should also be noted that the materials, shapes, dimensions, quantities, arrangements, etc., of the various components constituting the described embodiments and variations thereof are presented merely as examples and can be modified in any way, as long as the same function can be achieved.

[0080] First Implementation Method

[0081] The following reference Figures 1 to 8B This describes a touch sensing device D1 according to various embodiments of the present invention (including the first embodiment and its variations). Figures 1 to 2B An example of a touch sensing device D1 according to a first embodiment is shown. Figure 3A A first variant of the touch sensing device D1 according to the first embodiment is illustrated. Figure 3B A second variation of the touch sensing device D1 according to the first embodiment is illustrated. Figure 3C A third variation of the touch sensing device D1 according to the first embodiment is illustrated. Figure 4A A fourth variation of the touch sensing device D1 according to the first embodiment is illustrated. Figure 4B A fifth variation of the touch sensing device D1 according to the first embodiment is illustrated. Figure 5A A sixth variant of the touch sensing device D1 according to the first embodiment is illustrated. Figure 5B A seventh variation of the touch sensing device D1 according to the first embodiment is illustrated. Figure 6 An eighth variant of the touch sensing device D1 according to the first embodiment is illustrated. Figure 7 A ninth variation of the touch sensing device D1 according to the first embodiment is illustrated. Figure 8A A tenth variation of the touch sensing device D1 according to the first embodiment is illustrated. Figure 8B An eleventh variation of the touch sensing device D1 of the first embodiment is illustrated. Figures 2A to 8B Indicates the Z-Z' direction (first direction). The Z-Z' direction includes the Z direction (one side of the first direction) and the Z' direction (the other side of the first direction).

[0082] The touch sensing device D1 can be, for example, an interior part of a car (e.g., the console, see...) Figures 1 to 2A as well as Figures 3A to 3C Armrests, seats, dashboards, steering wheels, door panels, or headliners (linings); furniture (e.g., sofas, stools, chairs, tables, workbenches, etc.); portable information terminals (such as smartphones); fixed information terminals to be operated by users (e.g., ATMs, automatic ticket vending machines, terminals for signing cash overdraft loan contracts or similar transactions, multimedia terminals for booking tickets or purchasing products, vending machines, point-of-sale (POS) terminals, ticket vending machines installed at airports, train stations, etc. for issuing boarding passes or other tickets, entertainment devices (e.g., pinball machines, pinball parlor slot machines, slot machines, arcade games, etc.); etc.

[0083] The touch sensing device D1 includes a housing 100 and an outer layer 200. The housing 100 is the internal casing of the aforementioned automobile, furniture, portable information terminal, fixed information terminal, etc. The outer layer 200 is composed of materials such as natural, artificial, or synthetic leather, fibrous material fabric (such as woven or knitted fabric), or synthetic resin film. The outer layer 200 covers at least a portion of the housing 100. The outer layer 200 includes a touch area to be contacted by a detection target from the Z-direction side using a tool such as a human finger or a pen. The touch area of ​​the outer layer 200 may have one or more through holes, such as holes between needle pins. Furthermore, the touch area of ​​the outer layer 200 may have multiple portions, wherein adjacent portions can be joined together. In other words, the touch area may include one or more joints between these portions. One or more through holes and / or one or more joints in the touch area of ​​the outer layer 200 may be omitted.

[0084] The touch sensing device D1 also includes a sensor 300. The sensor 300 is a capacitive touch sensor. The sensor 300 is supported by a housing 100. The sensor 300 is disposed between the housing 100 and an outer layer 200 covering the housing 100. The sensor 300 includes at least one sensor layer. The at least one sensor layer includes a first sensor layer 310. It should be understood that the Z-Z' direction corresponds to the thickness direction of the sensor 300 and also to the thickness direction of the first sensor layer 310.

[0085] The first sensor layer 310 is a plate or film made of synthetic resin, such as polycarbonate (PC) resin, polymethyl methacrylate (PMMA) resin, acrylonitrile butadiene styrene (ABS) resin, polyethylene terephthalate (PET) resin, cyclic olefin polymer (COP) resin, DURABIO (registered trademark) resin, etc. The first sensor layer 310 includes: a first main surface 311 on the Z-direction side, a second main surface 312 on the Z'-direction side, and a side surface 313 intersecting the second main surface 312.

[0086] The at least one sensor layer is a single sensor layer (see Figure 2B , Figure 4A , Figure 4B In the case of Figure 5), the single sensor layer is the first sensor layer 310. In this case, the first sensor layer 310 is also the uppermost sensor layer on the Z-direction side of the single sensor layer, and also the lowermost sensor layer on the Z'-direction side of the single sensor layer. In this case, the first main surface 311 of the first sensor layer 310 is the first main surface of the sensor 300 on the Z-direction side, and the second main surface 312 of the first sensor layer 310 is the second main surface of the sensor 300 on the Z'-direction side.

[0087] The at least one sensor layer is a plurality of sensor layers (see Figures 6 to 8B In this case, the sensor layers are stacked along the Z-Z' direction. The plurality of sensor layers includes a first sensor layer 310. The first sensor layer 310 can be any of the sensor layers, such as the uppermost sensor layer on the Z-direction side or the lowermost sensor layer on the Z'-direction side. The uppermost sensor layer includes: a first main surface on the Z-direction side, a second main surface on the Z'-direction side, and a side surface intersecting the second main surface. In this case, the first main surface of the uppermost sensor layer is the first main surface of the sensor 300 on the Z-direction side.

[0088] In any of the above aspects, if the uppermost sensor layer is the first sensor layer 310, the first main surface of the uppermost sensor layer is the first main surface 311 of the first sensor layer 310, the second main surface of the uppermost sensor layer is the second main surface 312 of the first sensor layer 310, and the side surface of the uppermost sensor layer is the side surface 313 of the first sensor layer 310.

[0089] The sensor 300 also includes at least one first electrode 320a (see Figure 2B as well as Figures 4A to 8B The at least one first electrode 320a is at least one transparent conductive film or conductor disposed on at least one of the first main surface 311 and the second main surface 312 of the first sensor layer 310, and located on the Z' direction side relative to the touch area of ​​the outer layer 200. The first electrode or each of the first electrodes 320a is configured such that the signal (e.g., voltage or current) of the first electrode or each of the first electrodes changes according to the capacitance change caused by the approach of the detected target from the Z direction side.

[0090] The at least one first electrode 320a may be a plurality of first electrodes 320a. The plurality of first electrodes 320a may be disposed on the same main surface (first main surface 311 or second main surface 312) of the first sensor layer 310. Alternatively, one or more of the first electrodes 320a may be disposed on one of the first main surface 311 and the second main surface 312, and the remaining one or more first electrodes 320a may be disposed on the other main surface.

[0091] One or more first electrodes 320a are electrically connected to a controller (not shown). The controller may be located within the touch sensing device D1. Alternatively, the controller may not be located within the touch sensing device D1, but may be integrated into the aforementioned automobile, furniture, portable information terminal, fixed information terminal, etc. For ease of description, "controller" as used herein refers to the controller of the touch sensing device D1 or a controller located external to the touch sensing device D1.

[0092] In the case where sensor 300 is a self-capacitive touch sensor, the controller is configured to charge and discharge one or more first electrodes 320a. During charging and discharging, a target touching the touch area of ​​the outer layer 200 from the Z-direction side (in other words, the target approaching a single first electrode 320a or at least one of the first electrodes 320a from the Z-direction side) causes a change in electrostatic capacitance between the target and the single first electrode 320a or at least one of the first electrodes 320a. Based on this capacitance change, the signal (e.g., voltage or current) of the single first electrode 320a or at least one of the first electrodes 320a changes. The controller is configured to monitor the signal of one or more first electrodes 320a and compare the signal with a first threshold stored in the controller's memory. When the controller determines in the comparison that any signal of the first electrode or at least one of the first electrodes 320a exceeds the first threshold, the controller determines that the target has touched a portion of the touch area on the Z-direction side opposite to one or more first electrodes 320a with a signal exceeding the first threshold.

[0093] The sensor 300 may also include at least one second electrode 320b (see Figure 2B as well as Figures 4A to 8BThe at least one second electrode 320b is at least one transparent conductive film or conductor disposed on at least one of the first main surface 311 and the second main surface 312 of the first sensor layer 310, and located on the Z' direction side relative to the touch area of ​​the outer layer 200. The second electrode or each of the second electrodes 320b may be disposed on the same main surface of the first sensor layer 310, or on a different main surface than the surface on which the at least one first electrode 320a is disposed (see [reference]). Figure 2B , Figure 4A , Figure 4B (and Figure 5).

[0094] The at least one second electrode 320b can be a plurality of second electrodes 320b. The plurality of second electrodes 320b can be disposed on the same main surface (first main surface 311 or second main surface 312) of the first sensor layer 310. Alternatively, one or more of the second electrodes 320b can be disposed on one of the first main surface 311 and the second main surface 312 of the first sensor layer 310, and the remaining one or more second electrodes 320b can be disposed on the other main surface. In the case where the sensor 300 is a self-capacitive touch sensor, the at least one second electrode 320b is omitted.

[0095] In the case where the at least one sensor layer of sensor 300 is a plurality of sensor layers, the sensor layer may further include a second sensor layer 330 (see [link]). Figures 6 to 8B The second sensor layer 330 is composed of a plate or film similar to that constituting the first sensor layer 310. The second sensor layer 330 is positioned relative to the first sensor layer 310 on the Z' direction side. The second sensor layer 330 includes a first main surface 331 on the Z direction side and a second main surface 332 on the Z' direction side. The first main surface 331 of the second sensor layer 330 can be bonded to the second main surface 312 of the first sensor layer 310 using an optically transparent adhesive (OCA) or similar means. Another sensor layer may exist between the first main surface 331 and the second main surface 312 of the second sensor layer 330. The second main surface 332 of the second sensor layer 330 can be in surface contact with the housing 100. Another sensor layer may exist between the second main surface 332 of the second sensor layer 330 and the housing 100.

[0096] When the at least one second electrode 320b and the second sensor layer 330 are provided, the at least one second electrode 320b may not be provided on the first sensor layer 310, but may be provided on at least one of the first main surface 331 and the second main surface 332 of the second sensor layer 330 (see...). Figures 6 to 8B ).

[0097] When there are multiple second electrodes 320b, the second electrodes 320b can be disposed on the same main surface (first main surface 331 or second main surface 332) of the second sensor layer 330. Alternatively, one or more of the second electrodes 320b can be disposed on one of the first main surface 331 and the second main surface 332, and the remaining one or more second electrodes 320b can be disposed on the other main surface.

[0098] In the case where the sensor 300 is a mutual capacitance touch sensor including at least one first electrode 320a and at least one second electrode 320b, preferably, the second electrode or each of the second electrodes 320b is a driving electrode, and the first electrode or each of the first electrodes 320a is a detection electrode. The first electrode or each of the first electrodes 320a is electrically connected to a controller, and the second electrode or each of the second electrodes 320b is electrically connected to the controller. While the controller is supplying driving pulses to one or more of the second electrodes 320b, a target is detected approaching a single first electrode 320a or at least one of the first electrodes 320a and a single second electrode 320b or at least one of the second electrodes 320b from the Z-direction side, and a capacitance change exists between the single first electrode 320a or at least one of the first electrodes 320a and the single second electrode 320b or at least one of the second electrodes 320b, resulting in a signal change at the single first electrode 320a or at least one of the first electrodes 320a. The controller is configured to supply drive pulses to one or more second electrodes 320b, monitor signals from one or more first electrodes 320a, and compare the signals with a second threshold stored in the controller's memory. When the controller determines in the above comparison that the signal of the first electrode or at least one of the first electrodes 320a exceeds the second threshold, the controller determines that the target has touched a portion of the touch area on the Z-direction side opposite to one or more first electrodes 320a with a signal exceeding the second threshold.

[0099] Sensor 300 can be a combination of self-capacitance and mutual capacitance sensors. In this case, while the controller is charging and discharging one or more first electrodes 320a, a capacitance change exists between a detection target approaching from the Z-direction side and a single first electrode 320a or at least one of the first electrodes 320a, resulting in a signal change at the single first electrode 320a or at least one of the first electrodes 320a. Furthermore, while the controller is supplying drive pulses to one or more second electrodes 320b, a detection target approaches a single first electrode 320a or at least one of the first electrodes 320a and a single second electrode 320b or at least one of the second electrodes 320b from the Z-direction side, and a capacitance change exists between the single first electrode 320a or at least one of the first electrodes 320a and the single second electrode 320b or at least one of the second electrodes 320b, resulting in a signal change at the single first electrode 320a or at least one of the first electrodes 320a. The controller is configured to monitor the signal (voltage or current) of one or more first electrodes 320a and compare the signal with a third threshold stored in the controller's memory. When the controller determines in the comparison that the signal of the first electrode or at least one of the first electrodes 320a exceeds the third threshold, the controller determines that the target has touched a portion of the touch area on the Z-direction side opposite to one or more first electrodes 320a with a signal exceeding the third threshold.

[0100] The touch sensing device D1 also includes at least one intermediate layer 400 (first intermediate layer) inserted between the outer layer 200 and the uppermost sensor layer of the sensor 300. The at least one intermediate layer 400 includes a waterproof layer 410. The waterproof layer 410 is composed of a waterproof elastic material. The waterproof layer 410 is configured to elastically deform when pressed from the Z-direction side to the touch area by a detection target. Furthermore, the waterproof layer 410 only needs to have a waterproof rating of IPX1 or higher (JISC0920). The waterproof layer 410 can be composed, for example, of a closed-cell foam material (e.g., general-purpose polyethylene foam, sponge rubber, etc.) having the aforementioned waterproof properties. The closed-cell foam material has multiple independent and non-communicating air bubbles. The waterproof layer 410 has a first main surface 411 on the Z-direction side, a second main surface 412 on the Z'-direction side, and a side surface 413 intersecting the second main surface 412. The waterproof layer 410 may also have one of the following configurations (1) to (4).

[0101] (1) The projected area of ​​the waterproof layer 410 in the Z-direction side plan view (hereinafter referred to as "projected area in the plan view") is smaller than the projected area of ​​the outer layer 200 and smaller than the projected area of ​​the sensor 300 (see Figure 3A In this configuration, a waterproof layer 410 is disposed between a portion of the outer layer 200 and a portion of the sensor 300, and covers said portion of the sensor 300 from the Z-direction side. A first main surface 411 of the waterproof layer 410 may contact said portion of the outer layer 200. Alternatively, an interlayer member 700 (e.g., an adhesive layer, double-sided tape, etc.) may be present between the first main surface 411 and said portion of the outer layer 200. A second main surface 412 of the waterproof layer 410 may contact a portion of the uppermost sensor layer of the sensor 300. Alternatively, an interlayer member 700 (e.g., an adhesive layer, double-sided tape, etc.) may be present between the second main surface 412 and said portion of the uppermost sensor layer.

[0102] (2) The projected area of ​​the waterproof layer 410 in the plan view is smaller than that of the outer layer 200, but the projected area in the plan view is basically the same as that of the sensor 300 (see Figure 3B In this configuration, a waterproof layer 410 is disposed between a portion of the outer layer 200 and the sensor 300, and covers the sensor 300 from the Z-direction side. For example, the waterproof layer 410 may be disposed between the portion of the outer layer 200 (more specifically, the portion of the outer layer 200 relative to the sensor 300 on the Z-direction side) and the entire first main surface of the uppermost sensor layer of the sensor 300, and may cover the entire first main surface of the uppermost sensor layer from the Z-direction side. The first main surface 411 of the waterproof layer 410 may be in surface contact with the portion of the outer layer 200 relative to the sensor 300 on the Z-direction side. Alternatively, an interlayer member (e.g., an adhesive layer, double-sided tape, etc.) may be present between the first main surface 411 and the portion of the outer layer 200 relative to the sensor 300 on the Z-direction side. The second main surface 412 of the waterproof layer 410 may be in surface contact with the entire uppermost sensor layer. Alternatively, interlayer components (e.g., adhesive layer, double-sided tape, etc.) may exist between the second main surface 412 and the entire uppermost sensor layer.

[0103] (3) The projected area of ​​the waterproof layer 410 in the plan view is smaller than the projected area of ​​the outer layer 200, but the projected area in the plan view is larger than the projected area of ​​the sensor 300 (see...). Figure 3CIn this configuration, a waterproof layer 410 is disposed between a portion of the outer layer 200 and the combination of the entire sensor 300 and a portion of the housing 100, and covers the sensor 300 from the Z-direction side. For example, the waterproof layer 410 may be disposed between the portion of the outer layer 200 (more specifically, the portion of the outer layer 200 relative to the sensor 300 on the Z-direction side and the peripheral portion of the housing 100 surrounding the sensor 300) and the combination of the entire first main surface of the uppermost sensor layer of the sensor 300 and the peripheral portion of the housing 100 surrounding the sensor 300, and covers the entire first main surface of the uppermost sensor layer from the Z-direction side. The first main surface 411 of the waterproof layer 410 may be in surface contact with the portion of the outer layer 200 relative to the sensor 300 and the peripheral portion of the housing 100. Alternatively, an interlayer member (e.g., an adhesive layer, double-sided tape, etc.) may be present between the first main surface 411 and the portion of the outer layer 200 relative to the sensor 300 on the Z-direction side and the peripheral portion of the housing 100. The second main surface 412 of the waterproof layer 410 may be in surface contact with the combination of the entire uppermost sensor layer and the peripheral portion of the housing 100. Alternatively, an interlayer member (e.g., an adhesive layer, double-sided tape, etc.) may be present between the second main surface 412 and the combination of the entire uppermost sensor layer and the peripheral portion of the housing 100.

[0104] (4) The projected area of ​​the waterproof layer 410 in the plan view is basically the same as the projected area of ​​the outer layer 200, and the projected area in the plan view is larger than the projected area of ​​the sensor 300 (see...). Figure 2A In this configuration, a waterproof layer 410 is disposed between the outer layer 200 and at least a portion of the combination of the entire sensor 300 and the housing 100, and covers the sensor 300 from the Z-direction side. The first main surface 411 of the waterproof layer 410 may be in surface contact with the entire surface of the outer layer 200 on the Z'-direction side (see [reference]). Figure 2B , Figure 4A as well as Figure 4B Alternatively, an interlayer member (e.g., an adhesive layer, double-sided tape, etc.) may be present between the first main surface 411 and the entire surface of the outer layer 200 on the Z' direction side. The second main surface 412 of the waterproof layer 410 may be in surface contact with the combination of the entire first main surface of the uppermost sensor layer of the sensor 300 and the at least part of the housing 100 (see...). Figure 2B and Figure 4A Alternatively, an interlayer member (e.g., an adhesive layer, double-sided tape, etc.) may exist between the second main surface 412 and the combination of the entire first main surface of the uppermost sensor layer and the at least portion of the housing 100 (see...). Figure 4B ).

[0105] When the touch area of ​​the outer layer 200 is provided with the above-mentioned through holes and / or joints, the first main surface 411 of the waterproof layer 410 can contact the outer layer 200 in one of the above-mentioned methods (1) to (4) to block the through holes and / or joints of the outer layer 200.

[0106] The touch sensing device D1 may further include at least one venting path P1. The at least one venting path P1 may be disposed in at least one of the second main surface 412 of the waterproof layer 410 and the first main surface of the uppermost sensor layer (e.g., the first main surface 311 of the first sensor layer 310) (see [reference]). Figure 4A and Figure 7 In this case, the at least one exhaust path P1 is at least one through-hole or groove that extends along the at least one surface, opens to the at least one surface (to at least one of the Z-direction side and the Z'-direction side), and opens to one or more sides intersecting the at least one surface (e.g., side 413 of the waterproof layer 410 and / or side 313 of the first sensor layer 310). When the uppermost sensor layer undergoes a surface treatment such as a protective coating (i.e., when the uppermost sensor layer includes a surface-treated portion), the surface-treated portion of the uppermost sensor layer has a first main surface and / or a second main surface. In this case, the at least one exhaust path P1 may be a through-hole or groove disposed in the first main surface of the surface-treated portion of the uppermost sensor layer and configured as described above. When the second main surface 412 of the waterproof layer 410 is in surface contact with the first main surface of the uppermost sensor layer or is bonded to the first main surface of the uppermost sensor layer via the interlayer member 700, the air trapped between these two main surfaces moves through one or more exhaust paths P1 and is discharged to the outside from at least one of the side surfaces 413 of the waterproof layer 410 and the side surface of the uppermost sensor layer. The provision of the at least one exhaust path P1 thereby reduces the possibility that air becomes trapped between the second main surface 412 of the waterproof layer 410 and the first main surface of the uppermost sensor layer. Alternatively, the at least one exhaust path P1 may be provided in the interlayer member 700 (see...). Figure 4BThe at least one venting path P1 is at least one through-hole or groove that extends along at least one of the second main surface 412 of the waterproof layer 410 and the first main surface of the uppermost sensor layer (e.g., the first main surface 311 of the first sensor layer 310), opens toward said at least one surface (to at least one of the Z-direction side and the Z'-direction side), and opens toward the side of the interlayer member 700. When the second main surface 412 of the waterproof layer 410 is bonded to the first main surface of the uppermost sensor layer via the interlayer member 700, air trapped between the two main surfaces moves through one or more venting paths P1 and is discharged to the outside from the side of the interlayer member 700. The arrangement of the at least one venting path P1 in this respect also reduces the possibility that air becomes trapped between the second main surface 412 of the waterproof layer 410 and the first main surface of the uppermost sensor layer. It should be noted that the at least one venting path P1 can be multiple venting paths P1. Each venting path P1 only needs to have at least one of the above configurations. At least one exhaust path P1 can be omitted (see Figure 3).

[0107] The at least one intermediate layer 400 may further include an exhaust layer 420 (see...) Figure 5A , Figure 5B , Figure 8A as well as Figure 8B The venting layer 420 may be composed of an open-cell foam material (e.g., polyurethane foam), with multiple interconnected air bubbles disposed within the open-cell foam material. Alternatively, the venting layer 420 may be a plate or membrane similar to the first sensor layer 310. The venting layer 420 has a first main surface 421 on the Z-direction side, a second main surface 422 on the Z'-direction side, and a side surface 423 intersecting the second main surface 422. The projected area of ​​the venting layer 420 in a plan view is substantially the same as the projected area of ​​the waterproof layer 410. When the venting layer 420 is composed of an open-cell foam material, the venting layer 420 is configured to elastically deform upon pressure from the detection target from the Z-direction side to the touch area.

[0108] With the waterproof layer 410 having the above configuration (1), the projected area of ​​the venting layer 420 in the plan view is smaller than the projected area of ​​the sensor 300 (see...). Figure 3A In this configuration, the venting layer 420 is disposed between the waterproof layer 410 and the portion of the sensor 300. The first main surface 421 of the venting layer 420 may be in surface contact with the second main surface 412 of the waterproof layer 410 (see [link]). Figure 5A , Figure 8A as well as Figure 8BAlternatively, an interlayer member 700 (e.g., an adhesive layer, double-sided tape, etc.) may be present between the first main surface 421 of the venting layer 420 and the second main surface 412 of the waterproof layer 410. The second main surface 422 of the venting layer 420 is in contact with the portion of the sensor 300.

[0109] With the waterproof layer 410 having the above configuration (2), the projected area of ​​the venting layer 420 in the plan view is substantially the same as the projected area of ​​the sensor 300 (see...). Figure 3B In this configuration, the venting layer 420 is disposed between the waterproof layer 410 and the sensor 300 and covers the sensor 300 from the Z-direction side. For example, the venting layer 420 may be disposed between the entire second main surface 412 of the waterproof layer 410 and the entire first main surface of the uppermost sensor layer of the sensor 300, and cover the entire first main surface of the uppermost sensor layer from the Z-direction side. The first main surface 421 of the venting layer 420 may be in surface contact with the entire second main surface 412 of the waterproof layer 410 (see [link]). Figure 5A , Figure 8A as well as Figure 8B Alternatively, an interlayer member 700 (e.g., an adhesive layer, double-sided tape, etc.) may be present between the first main surface 421 of the venting layer 420 and the second main surface 412 of the waterproof layer 410. The second main surface 422 of the venting layer 420 is in surface contact with the entire first main surface of the uppermost sensor layer of the sensor 300.

[0110] With the waterproof layer 410 having the above configuration (3), the projected area of ​​the venting layer 420 in the plan view is larger than the projected area of ​​the sensor 300, while the projected area in the plan view is smaller than the projected area of ​​the outer layer 200 (see...). Figure 3C In this configuration, the venting layer 420 is disposed between the combination of the waterproof layer 410 and a portion of the outer layer 200 and the combination of the sensor 300 and a portion of the housing 100, and covers the sensor 300 from the Z-direction side. For example, the venting layer 420 may be disposed between the combination of the entire second main surface 412 of the waterproof layer 410 and the aforementioned portion of the outer layer 200 (more specifically, the portion of the outer layer 200 surrounding the periphery of the waterproof layer 410) and the combination of the entire first main surface of the uppermost sensor layer of the sensor 300 and the aforementioned portion of the housing 100 (more specifically, the portion of the housing 100 surrounding the periphery of the sensor 300), and covers the entire first main surface of the uppermost sensor layer from the Z-direction side. The first main surface 421 of the venting layer 420 may be in surface contact with the combination of the entire second main surface 412 of the waterproof layer 410 and the aforementioned portion of the outer layer 200 surrounding the periphery of the waterproof layer 410 (see [link to relevant documentation]). Figure 5A , Figure 8A as well as Figure 8BAlternatively, an interlayer member (e.g., an adhesive layer, double-sided tape, etc.) may be present between the combination of the first main surface 421 of the venting layer 420 and the entire second main surface 412 of the waterproof layer 410 and the peripheral portion of the outer layer 200 surrounding the waterproof layer 410. The second main surface 422 of the venting layer 420 is in surface contact with the entire first main surface of the uppermost sensor layer of the sensor 300 and the peripheral portion of the housing 100 surrounding the sensor 300.

[0111] With the waterproof layer 410 having the above configuration (4), the projected area of ​​the venting layer 420 in the plan view is substantially the same as the projected area of ​​the outer layer 200, and the projected area in the plan view is larger than the projected area of ​​the sensor 300 (see Figure 2A In this configuration, the venting layer 420 is disposed between the combination of the waterproof layer 410 and the outer layer 200 and at least a portion of the combination of the sensor 300 and the housing 100, and covers the sensor 300 from the Z' direction side. For example, the venting layer 420 may be disposed between the entire second main surface 412 of the waterproof layer 410 and the entire first main surface of the uppermost sensor layer of the sensor 300 and the at least portion of the housing 100, and cover the entire first main surface of the uppermost sensor layer from the Z' direction side. The first main surface 421 of the venting layer 420 may be in surface contact with the entire second main surface 412 of the waterproof layer 410 (see [link to documentation]). Figure 5A , Figure 8A as well as Figure 8B Alternatively, an interlayer member 700 (e.g., an adhesive layer, double-sided tape, etc.) may be present between the first main surface 421 of the venting layer 420 and the entire second main surface 412 of the waterproof layer 410. The second main surface 422 of the venting layer 420 is in surface contact with the entire first main surface of the uppermost sensor layer of the sensor 300 and at least a portion of the housing 100.

[0112] The touch sensing device D1 may also include at least one exhaust path P2. The at least one exhaust path P may be disposed in at least one of the second main surface 422 of the exhaust layer 420 and the first main surface of the uppermost sensor layer (e.g., the first main surface 311 of the first sensor layer 310) (see [reference]). Figure 8BThe at least one exhaust path P2 opens to the at least one surface (at least one of the Z-direction side and the Z'-direction side) and to one or more sides intersecting the at least one surface (e.g., side 423 of exhaust layer 420 and / or side 313 of the first sensor layer 310). In the case where the uppermost sensor layer includes a surface-treated portion, the at least one exhaust path P2 may be a through-hole or groove disposed in the first main surface of the surface-treated portion of the uppermost sensor layer and configured as described above. When the second main surface 422 of exhaust layer 420 is brought into surface contact with the first main surface of the uppermost sensor layer or bonded to the first main surface of the uppermost sensor layer via the interlayer member 700, the air sandwiched between these two main surfaces moves through one or more exhaust paths P2 and is discharged to the outside from at least one of the side 423 of exhaust layer 420 and the side of the uppermost sensor layer. The arrangement of the at least one exhaust path P2 thereby reduces the possibility that air becomes trapped between the second main surface 412 of exhaust layer 420 and the first main surface of the uppermost sensor layer. Alternatively, the at least one exhaust path P2 may be provided in the interlayer member 700 (see...). Figure 5B In this case, the at least one exhaust path P2 is at least one through-hole or groove that extends along at least one of the second main surface 422 of the exhaust layer 420 and the first main surface of the uppermost sensor layer (e.g., the first main surface 311 of the first sensor layer 310), opens to the at least one surface side (to at least one of the Z-direction side and the Z'-direction side), and opens to the side of the interlayer member 700. When the second main surface 422 of the exhaust layer 420 is bonded to the first main surface of the uppermost sensor layer via the interlayer member 700, the air sandwiched between the two main surfaces moves through one or more exhaust paths P2 and is discharged to the outside from the side of the interlayer member 700. The arrangement of the at least one exhaust path P2 in this respect also reduces the possibility that air becomes trapped between the second main surface 422 of the exhaust layer 420 and the first main surface of the uppermost sensor layer.

[0113] It should be understood that the interlayer member 700 is not limited to an adhesive layer or double-sided tape, but can be any member to be sandwiched between two layers.

[0114] In the case where the exhaust layer 420 is composed of open-cell foam material (see...) Figure 5A , Figure 5B , Figure 8A as well as Figure 8BThe plurality of bubbles in the exhaust layer 420 include at least one first bubble 424a, at least one second bubble 424b, and at least one third bubble 424c. The at least one first bubble 424a is disposed in the second main surface 422 of the exhaust layer 420 and is open to the second main surface of the exhaust layer. The at least one second bubble 424b is disposed in the side surface 423 of the exhaust layer 420 and is open to the side surface of the exhaust layer.

[0115] When at least one first bubble 424a is a single first bubble 424a, at least one second bubble 424b is a single second bubble 424b, and at least one third bubble 424c is one or more third bubbles 424c. The single first bubble 424a and the single second bubble 424b are connected and communicate with each other through the one or more third bubbles 424c. In this case, the at least one exhaust path P2 is a single exhaust path P2 consisting of the single first bubble 424a, the single second bubble 424b, and the one or more third bubbles 424c.

[0116] When the at least one first bubble 424a is a plurality of first bubbles 424a, the at least one second bubble 424b is a plurality of second bubbles 424b, and the at least one third bubble 424c is a plurality of third bubbles 424c, wherein each first bubble in the first bubble 424a and each second bubble in the second bubble 424b are connected and communicate with each other through one or more third bubbles 424c. In this case, the at least one exhaust path P2 is a plurality of exhaust paths P2, wherein each exhaust path is composed of one first bubble in the first bubble 424a, one second bubble in the second bubble 424b, and one or more third bubbles 424c.

[0117] When multiple exhaust paths P2 are provided, each exhaust path in P2 only needs to have at least one of the above configurations. Exhaust layer 420 can be omitted.

[0118] The touch sensing device D1 configured as described above provides the following technical features and effects (1) to (3).

[0119] Technical Features and Effects (1): The touch sensing device D1 has improved water resistance for the following reasons. The waterproof layer 410 of the at least one intermediate layer 400 covers at least a portion of the sensor 300 from the Z-direction side. Even if liquids such as water or sweat enter through scratches or cracks in the outer layer 200 caused by aging or other reasons, the waterproof layer 410 blocks the liquid from the Z-direction side to reduce the possibility of liquid adhering to the sensor 300. Moreover, in the case where the outer layer 200 is provided with through holes and / or joints, the waterproof layer 410 of the at least one intermediate layer 400 blocks the through holes and / or joints of the outer layer 200 to reduce the possibility of liquid entering through the through holes and / or joints of the outer layer 200. Furthermore, when the projected area of ​​the waterproof layer 410 in the plan view is substantially the same as or larger than the projected area of ​​the sensor 300, and the waterproof layer 410 covers the entire sensor 300 from the Z-direction side, the waterproof layer 410 also blocks liquid from the Z-direction side to further reduce the possibility of liquid adhering to the sensor 300. Furthermore, the waterproof layer 410 of the at least one intermediate layer 400 is composed of a waterproof elastic material, which allows for an increase in the dimension of the waterproof layer 410 along the Z-Z' direction compared to a waterproof layer comprising a waterproof but non-elastic portion and an additional elastic portion. This increased dimension of the waterproof layer 410 along the Z-Z' direction also improves the waterproofness of the touch sensing device D1.

[0120] Technical Features and Effects (2): The waterproof layer 410 of the at least one intermediate layer 400, located on the Z' direction side relative to the outer layer 200, is configured to elastically deform upon detecting a target touching the touch area of ​​the outer layer 200. This configuration provides an improved feel to the user when operating the touch sensing device D1. Furthermore, when the at least one intermediate layer 400 also includes a venting layer 420 as an open-cell foam material, the waterproof layer 410 and the venting layer 420 of the at least one intermediate layer 400, located on the Z' direction side relative to the outer layer 200, are configured to elastically deform upon detecting a target touching the touch area of ​​the outer layer 200. This configuration provides an even more improved feel to the user when operating the touch sensing device D1.

[0121] Technical Features and Effects (3): When at least one exhaust path P1 is provided, when the second main surface 412 of the waterproof layer 410 is in surface contact with the first main surface of the uppermost sensor layer of the sensor 300, the air trapped between the second main surface 412 of the waterproof layer 410 and the first main surface of the uppermost sensor layer is discharged to the outside through the at least one exhaust path P1. This configuration reduces the possibility of air remaining trapped between the second main surface 412 of the waterproof layer 410 and the first main surface of the uppermost sensor layer. Furthermore, when at least one exhaust path P2 is provided, when the second main surface 422 of the exhaust layer 420 is in surface contact with the first main surface of the uppermost sensor layer of the sensor 300, the air trapped between the second main surface 422 of the exhaust layer 420 and the first main surface of the uppermost sensor layer is discharged to the outside through the at least one exhaust path P2. This configuration reduces the possibility of air remaining trapped between the second main surface 422 of the exhaust layer 420 and the first main surface of the uppermost sensor layer.

[0122] Second Implementation Method

[0123] The following reference Figures 9A to 9C This describes a touch sensing device D2 according to various embodiments of the present invention (including a second embodiment and variations thereof). Figure 9A An example of a touch sensing device D2 according to a second embodiment is shown. Figure 9B A first variant of the touch sensing device D2 according to the second embodiment is illustrated. Figure 9C A second variation of the touch sensing device D2 according to the second embodiment is illustrated. Similar to the touch sensing device D1, Figures 9A to 9C It also indicates the Z-Z' direction.

[0124] The touch sensing device D2 has the same configuration as the touch sensing device D1 except for the following differences: (a) the outer layer 200' of the touch sensing device D2 is provided with an opening 201' and has no touch area, and (b) the touch sensing device D2 also includes a cover 500 and an intermediate layer 600 (a second intermediate layer). The description of the touch sensing device D2 will now focus on these differences from the touch sensing device D1 and overlapping descriptions will be omitted.

[0125] The cover 500 is made of materials such as natural, artificial, or synthetic leather, fibrous materials (such as woven or knitted fabrics), or synthetic resin films. The cover 500 includes a touch area for touch from the Z-direction side using a detection target such as a human finger or a needle pen. The touch area of ​​the cover 500 may have one or more through holes, such as holes between needle pins. Furthermore, the touch area of ​​the cover 500 may have multiple portions, where adjacent portions can be joined together. In other words, the touch area may have one or more joints between these portions. One or more through holes and / or one or more joints in the touch area of ​​the cover 500 may be omitted.

[0126] The cover 500 has a shape of projected area in a plan view from the Z-direction side (hereinafter simply referred to as "shape of projected area in plan view"). The shape of the projected area of ​​the cover 500 in plan view may be the same as the shape of the intermediate layer or each intermediate layer 400. In this case, the projected area of ​​the cover 500 is substantially the same as the projected area of ​​the intermediate layer or each intermediate layer 400 (see...). Figure 9A and Figure 9C ), or the projected area in the plan is greater than the projected area of ​​the intermediate layer or each intermediate layer by 400 (see Figure 9B Alternatively, the shape of the projected area of ​​the cover 500 in the plan view may differ from the shape of the intermediate layer or each intermediate layer 400. In this case, the projected area of ​​the cover 500 in the plan view is larger than the projected area of ​​the intermediate layer or each intermediate layer 400 (see...). Figure 9B In either case, the cover 500 may be in surface contact with the first main surface 411 of the waterproof layer 410 of the at least one intermediate layer 400 from the Z-direction side. Alternatively, an additional layer of the at least one intermediate layer 400 may be present between the cover 500 and the waterproof layer 410 of the at least one intermediate layer 400, and the cover 500 may be configured to cover the first main surface 411 of the waterproof layer 410 from the Z-direction side. The cover 500, the at least one intermediate layer 400, and the sensor 300 are stacked in this order along the Z-Z' direction to form a unit. For ease of description, this unit is referred to as sensor unit U.

[0127] The opening 201' of the outer layer 200' passes through the outer layer 200' along the Z-Z' direction. The shape of the projected area of ​​the opening 201' in the plan view is basically the same as the shape of the projected area of ​​the cover 500 in the plan view, and the projected area of ​​the opening 201' in the plan view is basically the same size as the projected area of ​​the cover 500 (see...). Figures 9A to 9C The opening 201' along the Z-Z' direction is approximately the same size as the cover 500.

[0128] Except that the intermediate layer 600 is inserted between the outer layer 200' and the housing 100 and has a receiving hole 601, the intermediate layer 600 may have the same configuration as the at least one intermediate layer 400. The receiving hole 601 is a through hole passing through the intermediate layer 600 in the Z-Z' direction, or a blind hole that is open in the Z direction and closed in the Z' direction. The receiving hole 601 is positioned on the Z' direction side relative to the opening 201' and communicates with the opening.

[0129] The shape of the projected area of ​​the receiving hole 601 in the plan view can be substantially the same as the shape of the projected area of ​​the intermediate layer or each intermediate layer 400 in the plan view and the shape of the sensor 300 of the sensor unit U. The projected area of ​​the receiving hole 601 in the plan view can be substantially the same size as the projected area of ​​the intermediate layer or each intermediate layer 400 and the sensor 300 of the sensor unit U. The dimension of the receiving hole 601 along the Z-Z' direction can be substantially the same as the sum of the dimensions of the at least one intermediate layer 400 and the sensor 300 of the sensor unit U along the Z-Z' direction.

[0130] When the receiving hole 601 is a through hole, the housing 100 may be provided with a receiving recess 110. The receiving recess 110 is positioned relative to the receiving hole 601 on the Z' direction side and communicates with the receiving hole. In this case, the shape of the projected area of ​​the receiving recess 110 in the plan view is substantially the same as the shape of the projected area of ​​the sensor 300 of the sensor unit U in the plan view, the projected area of ​​the receiving recess 110 in the plan view is substantially the same as the projected area of ​​the sensor 300 of the sensor unit U, and the size of the receiving recess 110 along the Z-Z' direction is substantially the same as the size of the sensor 300 of the sensor unit U. Moreover, the shape of the projected area of ​​the receiving hole 601 in the plan view is substantially the same as the shape of the projected area of ​​the intermediate layer or each intermediate layer 400 of the sensor unit U in the plan view, the projected area of ​​the receiving hole 601 in the plan view is substantially the same as the projected area of ​​the intermediate layer or each intermediate layer 400 of the sensor unit U, and the size of the receiving hole 601 along the Z-Z' direction is substantially the same as the size of at least one intermediate layer 400 of the sensor unit U.

[0131] The projected areas of the cover 500, the intermediate layer or each intermediate layer 400, and the sensor 300 in the plan view are substantially the same size, and no receiving recess 110 is provided (see...). Figure 9A In the case of ), the opening 201' accommodates the cover 500 of the sensor unit U, and the receiving hole 601 accommodates the at least one intermediate layer 400 and the sensor 300 of the sensor unit U.

[0132] When the projected areas of the cover 500, the intermediate layer or each intermediate layer 400 and the sensor 300 in the plan view are substantially the same size, and a receiving recess 110 (not shown) is provided, the opening 201' receives the cover 500 of the sensor unit U, the receiving hole 601 receives the at least one intermediate layer 400 of the sensor unit U, and the receiving recess 110 receives the sensor 300 of the sensor unit U.

[0133] The projected area of ​​the cover 500 in the plan view is larger than the projected area of ​​the intermediate layer or each intermediate layer 400 and the sensor 300. The projected area of ​​the intermediate layer or each intermediate layer 400 in the plan view is substantially the same as the projected area of ​​the sensor 300 and no receiving recess 110 is provided (see...). Figure 9B In the case of opening 201', the cover 500 that accommodates the sensor unit U, the peripheral portion of the cover 500 surrounding the at least one intermediate layer 400 contacts and covers the peripheral portion of the intermediate layer 600 surrounding the receiving hole 601 from the Z direction, and the receiving hole 601 accommodates the at least one intermediate layer 400 and the sensor 300 of the sensor unit U.

[0134] When the projected area of ​​the cover 500 in the plan view is larger than the projected area of ​​the intermediate layer or each intermediate layer 400 and the sensor 300, and the projected area of ​​the intermediate layer or each intermediate layer 400 in the plan view is substantially the same as the projected area of ​​the sensor 300 and a receiving recess 110 (not shown) is provided, the opening 201' accommodates the cover 500 of the sensor unit U, the peripheral portion of the cover 500 surrounding the at least one intermediate layer 400 contacts and covers the peripheral portion of the receiving hole 601 of the intermediate layer 600 from the Z direction, the receiving hole 601 accommodates the at least one intermediate layer 400 of the sensor unit U, and the receiving recess 110 accommodates the sensor 300 of the sensor unit U.

[0135] In a plan view, the projected area of ​​the cover 500 and the projected area of ​​the intermediate layer or each intermediate layer 400 are substantially the same size. The projected areas of both the cover 500 and the at least one intermediate layer 400 are larger than the projected area of ​​the sensor 300. Without a receiving recess 110 (not shown), the receiving hole 601 includes a first hole on the Z-direction side and a second hole on the Z'-direction side. The opening 201' accommodates the cover 500 of the sensor unit U. The first hole of the receiving hole 601 accommodates the at least one intermediate layer 400 of the sensor unit U. The peripheral portion of the at least one intermediate layer 600 surrounding the sensor 300 contacts and covers the peripheral portion of the second hole of the receiving hole 601 from the Z-direction. The second hole of the receiving hole 601 accommodates the sensor 300 of the sensor unit U.

[0136] The projected area of ​​the cover 500 in the plan view is substantially the same as the projected area of ​​the intermediate layer or each intermediate layer 400. The projected areas of the cover 500 and the at least one intermediate layer 400 in the plan view are both larger than the projected area of ​​the sensor 300, and a receiving recess 110 is provided (see...). Figure 9C In the case of opening 201' receiving the cover 500 of sensor unit U, receiving hole 601 receiving the at least one intermediate layer 400 of sensor unit U, the peripheral portion of the at least one intermediate layer 600 surrounding sensor 300 contacts and covers the peripheral portion of receiving recess 110 of housing 100 from the Z direction, and receiving recess 110 receiving sensor 300 of sensor unit U.

[0137] It should be noted that the Z-direction side of the outer portion of the opening 201' of the outer layer 200' may be flush with the Z-direction side of the cover 500, or may be different from the Z-direction side of the cover 500 in height.

[0138] The touch sensing device D2 configured as described above provides the following technical features and effects (1) to (4).

[0139] Technical Features and Effects (1): The touch sensing device D2 has improved water resistance for the following reasons. The waterproof layer 410 of the at least one intermediate layer 400 covers at least a portion of the sensor 300 from the Z-direction side. Even if liquids such as water or sweat enter through scratches or cracks in the cover 500 caused by aging or other reasons, the waterproof layer 410 blocks the liquid from the Z-direction side to reduce the possibility of liquid adhering to the sensor 300. Moreover, in the case where the cover 500 is provided with through holes and / or joints, the waterproof layer 410 of the at least one intermediate layer 400 blocks the through holes and / or joints of the cover 500 to reduce the possibility of liquid entering through the through holes and / or joints of the cover 500. Furthermore, when the projected area of ​​the waterproof layer 410 of the at least one intermediate layer 400 in the plan view is substantially the same as or larger than the projected area of ​​the sensor 300, and the waterproof layer 410 covers the entire sensor 300 from the Z-direction side, the waterproof layer 410 blocks liquid from the Z-direction side to further reduce the possibility of liquid adhering to the sensor 300. Furthermore, the waterproof layer 410 of the at least one intermediate layer 400 is composed of a waterproof elastic material, which allows for an increase in the dimension of the waterproof layer 410 along the Z-Z' direction compared to a waterproof layer comprising a waterproof but non-elastic portion and an additional elastic portion. This increased dimension of the waterproof layer 410 along the Z-Z' direction also improves the waterproofness of the touch sensing device D2.

[0140] Technical Features and Effects (2): The waterproof layer 410 of the at least one intermediate layer 400, located on the Z' direction side relative to the cover 500, is configured to elastically deform upon detecting a target touching the touch area of ​​the cover 500. This configuration provides an improved feel to the user when operating the touch sensing device D2. Furthermore, when the at least one intermediate layer 400 also includes a venting layer 420 as an open-cell foam material, the waterproof layer 410 and the venting layer 420 of the at least one intermediate layer 400, located on the Z' direction side relative to the cover 500, are configured to elastically deform upon detecting a target touching the touch area of ​​the cover 500. This configuration provides an even more improved feel to the user when operating the touch sensing device D2.

[0141] Technical features and effects (3): Touch sensing device D2 provides similar technical features and effects to touch sensing device D1 (3).

[0142] Technical features and effects (4): The sensor unit U of the touch sensing device D2 can be assembled into the outer layer 200', the middle layer 600 and the housing 100 through the opening 201' of the outer layer 200'. This arrangement simplifies the assembly of the touch sensing device D2.

[0143] Third Implementation Method

[0144] The following reference Figures 10A to 10C This describes a touch sensing device D3 according to various embodiments of the present invention (including a third embodiment and variations thereof). Figure 10A An example of a touch sensing device D3 according to a third embodiment is shown. Figure 10B A first variant of the touch sensing device D3 according to the third embodiment is illustrated. Figure 10C A second variation of the touch sensing device D3 according to the third embodiment is illustrated. Similar to the touch sensing device D1, Figures 10A to 10C It also indicates the Z-Z' direction.

[0145] Touch sensing device D3 has the same configuration as touch sensing device D2 except for the following differences: (a) touch sensing device D3 does not include outer layer 200' and intermediate layer 600; and (b) touch sensing device D3 includes housing 100' in which sensor unit U is assembled. Now, the description of touch sensing device D3 focuses on these differences from touch sensing device D2 and omits overlapping descriptions.

[0146] The housing 100' includes a receiving portion 110'. The receiving portion 110' can be a through-hole extending through the housing 100' along the Z-Z' direction, or a blind hole that is open along the Z-direction and closed along the Z' direction. When the receiving portion 110' is a through-hole, it can have any size along the Z-Z' direction. When the receiving portion 110' is a blind hole, its size along the Z-Z' direction can be substantially the same as, larger than, or smaller than the sensor unit U.

[0147] When the projected areas of the cover 500, the intermediate layer or each intermediate layer 400, and the sensor 300 in the plan view are substantially the same size, the shape of the projected area of ​​the receiving portion 110' in the plan view is substantially the same as the shape of the projected area of ​​the cover 500 in the plan view, and the projected area of ​​the receiving portion 110' in the plan view is substantially the same size as the projected area of ​​the cover 500 (see...). Figure 10A In this case, the receiving portion 110' receives the cover 500 of the sensor unit U, the cover 500 of the sensor unit U and the at least one intermediate layer 400, or the cover 500 of the sensor unit U, the at least one intermediate layer 400 and the sensor 300.

[0148] The projected area of ​​the cover 500 in the plan view is greater than the projected area of ​​the intermediate layer or each intermediate layer 400 and the sensor 300, and the projected areas of the intermediate layer or each intermediate layer 400 and the sensor 300 in the plan view are substantially the same size as each other (see [reference]). Figure 10B In the case of [missing information], the receiving portion 110' includes: a first hole 111' on the Z-direction side and a second hole 112' on the Z'-direction side. The first hole 111' receives a cover 500, the peripheral portion of the cover 500 surrounding the at least one intermediate layer 400 contacting and covering the peripheral portion of the first hole 111' from the Z-direction side, and the second hole 112' receives the at least one intermediate layer 400, or receives the at least one intermediate layer 400 and the sensor 300.

[0149] The projected areas of the cover 500 and the intermediate layers 400 in the plan view are substantially the same size, and the cover 500 and the at least one intermediate layer 400 are both larger than the sensor 300 (see [reference]). Figure 10CIn the case of [missing information], the receiving portion 110' includes: a first hole 111' on the Z-direction side and a second hole 112' on the Z'-direction side. The first hole 111' receives the cover 500 and the at least one intermediate layer 400, the peripheral portion of the at least one intermediate layer 400 surrounding the sensor 300 contacting and covering the peripheral portion of the first hole 111' from the Z-direction side, and the second hole 112' receives the sensor 300. In this case, the second hole 112' can be omitted, and the sensor 300 can be received within the housing 100'.

[0150] When the sensor unit U is assembled in the housing 100' in any of the above-described manner, the sensor unit U may be supported by or fixed to the housing 100', or alternatively, may be supported by or fixed to a support member (not shown) in the housing 100'. The Z-direction side surface of the peripheral portion of the receiving portion 110' of the housing 100' may be flush with the Z-direction side surface of the cover 500, or may differ in height from the Z-direction side surface of the cover 500.

[0151] The touch sensing device D3 configured as described above provides similar technical features and effects to the touch sensing device D2 (1) to (3).

[0152] Technical features and effects (4): The sensor unit U of the touch sensing device D3 can be assembled into the receiving portion 110' of the housing 100'. This arrangement simplifies the assembly of the touch sensing device D3.

[0153] It should be noted that the touch sensing device described above is not limited to the embodiments described above, but can be modified in any way within the scope of the claims. Some examples of modifications are described below.

[0154] The touch sensing device of the present invention may include only the sensor unit U of any of the above aspects.

[0155] The cover 500 of the sensor unit U can be exposed through the opening 201' of the outer layer 200', rather than being contained within the opening 201'. In this case, the cover 500, together with the at least one intermediate layer 400, can be contained together in the receiving hole 601 of the intermediate layer 600, or together with the at least one intermediate layer 400 and the sensor 300, can be contained together in the receiving hole 601 of the intermediate layer 600. The cover 500 of the sensor unit U can be exposed through the receiving portion 110', rather than being contained within the receiving portion 110'. In this case, the sensor unit U can be positioned relative to the receiving portion 110' in the housing 100' on the Z' direction side. The projected area of ​​the cover 500 of the sensor unit U in the plan view from the Z direction side can be smaller than the projected area of ​​the intermediate layer or each intermediate layer 400.

[0156] The cover 500 of the sensor unit U can be omitted. When the cover 500 is omitted, the sensor unit U, without the cover 500, can be assembled into the housing 100 and the intermediate layer 600, or alternatively into the housing 100', and then the outer layer 200 can be configured to cover the sensor unit U, the housing 100, and the intermediate layer 600, or cover the sensor unit U and the housing 100'. Alternatively, the Z-direction side surface of the at least one intermediate layer 400 of the sensor unit U may include a touch area.

[0157] In any of the foregoing aspects, the at least one intermediate layer 400 may include at least one additional layer in addition to the waterproof layer 410 or alternatively, in addition to the waterproof layer 410 and the venting layer 420. The waterproof layer 410 and the at least one additional layer, or alternatively, the waterproof layer 410, the venting layer 420, and the at least one additional layer are stacked along the Z-Z' direction. The aforementioned interlayer member 700 may be present between two adjacent layers along the Z-Z' direction in these stacked layers, or alternatively, adjacent layers may be in surface contact without any interlayer member 700 between them. An example of an additional layer is a printed layer 430 (see...). Figure 11A and Figure 11BThe printed layer 430 includes at least one semi-transparent portion 431 and an opaque portion 432 other than the at least one semi-transparent portion 431. The at least one semi-transparent portion 431 is sufficiently semi-transparent to transmit optical signals emitted from a light-emitting device along the Z direction, the light-emitting device being disposed on the Z' direction side relative to any of the touch sensing devices D1, D2, or D3 described above. The opaque portion 432 is configured to block the optical signals emitted from the light-emitting device along the Z direction and to prevent the optical signals from being transmitted relative to the opaque portion 432 toward the Z direction side. The optical signals transmitted through the at least one semi-transparent portion 431 are projected onto the touch area of ​​the outer layer 200 or the touch area of ​​the cover 500. The projected optical signals can be used as one or more icons. In this case, the touch area of ​​the outer layer 200 or the cover 500 may include a portion on which the optical signals are projected, and this portion may also be sufficiently semi-transparent to transmit the optical signals. The waterproof layer 410, or alternatively the waterproof layer 410 and the venting layer 420, may also be sufficiently translucent to transmit optical signals emitted from the light-emitting device along the Z direction. The sensor 300 may also be sufficiently translucent to transmit optical signals emitted from the light-emitting device along the Z direction. At least a portion of the housing 100 (e.g., the portion located on the Z' direction side relative to the at least one translucent portion 431) may also be sufficiently translucent to transmit optical signals emitted from the light-emitting device along the Z direction. It should be appreciated that, as used herein, "translucent" components may be optically transparent.

[0158] Touch sensing devices D1, D2, and D3 according to any of the above aspects can be modified to include sensor 300' or sensor 300" instead of sensor 300. Such modified touch sensing devices D1, D2, and D3 are configured as described above in aspects other than sensor 300' or sensor 300".

[0159] Sensor 300' is a resistive touch sensor. For example... Figure 12A and Figure 12BAs illustrated, sensor 300' may include at least one sensor layer, at least one first electrode 320a, at least one second electrode 320b, and at least one insulating spacer 320c. The at least one sensor layer may include a first sensor layer 310 and a second sensor layer 330. The first sensor layer 310 includes a first main surface 311 on the Z-direction side and a second main surface 312 on the Z'-direction side. The second sensor layer 330 includes a first main surface 331 on the Z-direction side and a second main surface 332 on the Z'-direction side. The at least one first electrode 320a is disposed on the second main surface 312 of the first sensor layer 310. The at least one second electrode 320b is disposed along the Z-Z' direction on the first main surface 331 of the second sensor layer 330 at a distance from the at least one electrode 320a. The at least one spacer 320c is inserted between the at least one first electrode 320a and the at least one second electrode 320b and separates them. When a target approaches from the Z-direction side and then applies a load to a portion of the at least one first electrode 320a, at least said portion of the at least one first electrode 310a bends, contacts the at least one second electrode 320b, and becomes electrically connected to the at least one second electrode 320b. A controller is configured to detect this electrical connection and thereby determine that the target has contacted a portion of the first electrode 320a on the Z-direction side.

[0160] Sensor 300" is an optical touch sensor. For example... Figure 13A and Figure 13BAs illustrated, sensor 300" may include at least one sensor layer, at least one light-emitting device 320a', and at least one light-receiving device 320b'. In this case, the at least one sensor layer may include a first sensor layer 310 and a second sensor layer 330. The first sensor layer 310 includes a first main surface 311 on the Z-direction side and a second main surface 312 on the Z'-direction side. The second sensor layer 330 includes a first main surface 331 on the Z-direction side and a second main surface 332 on the Z'-direction side. The at least one light-emitting device 320a' and the at least one light-receiving device 320b' are disposed on the second main surface 312 of the first sensor layer 310 and the second sensor layer 330. The first main surfaces 331 of 330 are positioned so that they face each other. The at least one light-receiving device 320b' is configured to receive optical signals emitted from the at least one light-emitting device 320a' and to output a signal. If a detected target approaches from the Z-direction side and blocks the optical signals emitted from the at least one light-emitting device 320a', in this case, no signal is output from the at least one light-receiving device 320b'. The controller is configured to detect the lack of signal input from the at least one light-receiving device 320b', thereby determining that the detected target has touched a portion of the area between the at least one light-receiving device 320b' and the at least one light-emitting device 320a' on the Z-direction side.

[0161] Sensor 300 in any of the above aspects may include a plurality of first electrodes 320a, or a plurality of first electrodes 320a and a plurality of second electrodes 320b. Sensor 300' in any of the above aspects may include a plurality of first electrodes 320a and a plurality of second electrodes 320b. Sensor 300" in any of the above aspects may include a plurality of light-emitting devices 320a' and a plurality of light-receiving devices 320b". In any of these cases, the sensor in any of the above aspects may be a touch sensing panel (touch sensor) configured to detect the coordinates of a touch area.

Claims

1. A touch sensing device, the touch sensing device comprising: A sensor, which is a capacitive, resistive, or optical touch sensor, is configured to detect a target approaching the sensor from one side in a first direction, the first direction being the thickness direction of the sensor. The outer layer includes a touch area, which is to be contacted by the detection target from one side in the first direction; as well as At least one first intermediate layer located between the outer layer and the sensor The outer layer is composed of natural leather, artificial leather, synthetic leather, or fiber material fabric. The at least one first intermediate layer includes a waterproof layer composed of a waterproof elastic material. At least a portion of the waterproof layer is disposed on the opposite side of the outer layer in the first direction. The waterproof layer is disposed on one side of the sensor in the first direction and covers at least a portion of the sensor. The waterproof layer undergoes elastic deformation when pressed by the detection target from one side in the first direction via the touch area.

2. The touch sensing device according to claim 1, wherein, The projected area of ​​the waterproof layer in the plan view on one side of the first direction is the same as or larger than the projected area of ​​the sensor, and The waterproof layer is positioned on one side of the sensor in the first direction and covers the entire sensor.

3. The touch sensing device according to claim 1 or 2, wherein, The sensor includes a first main surface located on one side of the first direction, and The waterproof layer includes a first main surface on one side of the first direction, a second main surface on the other side of the first direction, and a side surface intersecting the second main surface. The second main surface of the waterproof layer is in surface contact with the first main surface of the sensor, or alternatively, it is in contact with the first main surface of the sensor via an interlayer member disposed between them. The touch sensing device also includes at least one exhaust path. The at least one venting path is disposed on at least one of the second main surface of the waterproof layer and the first main surface of the sensor, open to the at least one surface and open to a side intersecting the at least one surface; or alternatively, the at least one venting path is disposed in the interlayer member, open to at least one of the second main surface of the waterproof layer and the first main surface of the sensor and open to a side of the interlayer member.

4. The touch sensing device according to claim 1 or 2, wherein the touch sensing device further comprises an exhaust layer, wherein, The sensor includes a first main surface located on one side of the first direction. The venting layer is disposed between the waterproof layer and the sensor, and the venting layer includes a first main surface on one side of the first direction, a second main surface on the other side of the first direction, and a side surface intersecting the second main surface. The second main surface of the exhaust layer is in surface contact with the first main surface of the sensor, or alternatively, they are in contact via an interlayer member disposed between them. The touch sensing device also includes at least one exhaust path. The at least one exhaust path is disposed on at least one of the second main surface of the exhaust layer and the first main surface of the sensor, opens to the at least one surface and opens to a side intersecting with the at least one surface, or alternatively, the at least one exhaust path is disposed in the interlayer member, opens to the at least one of the second main surface of the exhaust layer and the first main surface of the sensor and opens to a side of the interlayer member.

5. The touch sensing device according to claim 4, wherein, The exhaust layer is composed of an open-cell foam material, within which multiple interconnected air bubbles are arranged. The plurality of bubbles in the exhaust layer include a first bubble open to the second main surface of the exhaust layer, a second bubble open to the side surface of the exhaust layer, and at least one third bubble connecting the first bubble and the second bubble. The first bubble, the second bubble, and the at least one third bubble constitute the at least one exhaust path.

6. The touch sensing device according to claim 1 or 2, wherein, The sensor includes: The system includes at least one sensor layer, comprising a first main surface on one side of the first direction and a second main surface on the other side of the first direction; and At least one first electrode is located on at least one of the first main surface and the second main surface of the first sensor layer, and The at least one first electrode is configured such that the signal of the first electrode or each of the first electrodes changes according to a change in capacitance between the detection target and the first electrode or each of the first electrodes, the change being caused by the detection target approaching from one side of the first direction.

7. The touch sensing device according to claim 1 or 2, wherein, The sensor includes: At least one sensor layer including a first sensor layer, the first sensor layer including a first main surface on one side of the first direction and a second main surface on the other side of the first direction; At least one first electrode located on at least one of the first main surface and the second main surface of the first sensor layer; and At least one second electrode is located on at least one of the first main surface and the second main surface of the first sensor layer, and The at least one first electrode is configured such that the signal of the first electrode or each of the first electrodes changes according to a change in capacitance between the first electrode or each of the first electrodes and the second electrode or each of the second electrodes, the change being caused by the detection target approaching from one side of the first direction.

8. The touch sensing device according to claim 1 or 2, wherein, The sensor includes: At least one sensor layer, the at least one sensor layer comprising: A first sensor layer, comprising a first main surface on one side of the first direction and a second main surface on the other side of the first direction; and The second sensor layer is located on the opposite side of the first sensor layer in the first direction. The second sensor layer includes a first main surface on one side of the first direction and a second main surface on the opposite side of the first direction. At least one first electrode located on at least one of the first main surface and the second main surface of the first sensor layer; and At least one second electrode is located on at least one of the first and second main surfaces of the second sensor layer, and The at least one first electrode is configured such that the signal of the first electrode or each of the first electrodes changes according to a change in capacitance between the first electrode or each of the first electrodes and the second electrode or each of the second electrodes, the change being caused by the detection target approaching from one side of the first direction.

9. The touch sensing device according to claim 7, wherein, The at least one first electrode is configured such that the signal of the first electrode or each of the first electrodes changes according to a first change in capacitance between the first electrode or each of the first electrodes and the detection target, and such that the signal of the first electrode or each of the first electrodes changes according to a second change in capacitance between the first electrode or each of the first electrodes and the second electrode or each of the second electrodes, the first change and the second change being caused by the detection target approaching from one side of the first direction.

10. The touch sensing device according to claim 8, wherein, The at least one first electrode is configured such that the signal of the first electrode or each of the first electrodes changes according to a first change in capacitance between the first electrode or each of the first electrodes and the detection target, and such that the signal of the first electrode or each of the first electrodes changes according to a second change in capacitance between the first electrode or each of the first electrodes and the second electrode or each of the second electrodes, the first change and the second change being caused by the detection target approaching from one side of the first direction.

11. The touch sensing device according to claim 1, wherein, The outer layer is provided with through holes, and The waterproof layer blocks the through-hole of the outer layer from the other side of the first direction.

12. The touch sensing device according to claim 1, wherein, The outer layer comprises multiple parts, and adjacent parts are joined together. The waterproof layer is in surface contact with the junction of the two adjacent portions of the outer layer from the other side of the first direction.

13. The touch sensing device according to claim 1, 11, or 12, wherein the touch sensing device further includes a housing supporting the sensor, wherein, The projected area of ​​the waterproof layer in the plan view on one side of the first direction is larger than the projected area of ​​the sensor, and The waterproof layer is disposed between the outer layer and the combination of the sensor and the housing.

14. The touch sensing device according to claim 1, 11, or 12, wherein, The at least one first intermediate layer further includes a printed layer. The printed layer includes at least one semi-transparent portion and opaque portions other than the at least one semi-transparent portion, and The waterproof layer is semi-transparent.

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