Fabric touch control equipment

Abstract

The invention discloses fabric touch equipment. The fabric touch equipment comprises a first conductive layer, a second conductive layer and at least one third conductive layer, the first conductive layer comprises a first base layer, a first semiconductor and a first good conductor, the second conductive layer comprises a second base layer, a second semiconductor and a second good conductor, and the third conductive layer comprises a third base layer and a third good conductor. When the fabric touch control equipment is in a non-stress state, the first conductive layer, the second conductive layer and the third conductive layer are all kept isolated. When the fabric touch equipment is in a stress state and the applied force is greater than a first preset value, the first conductive path is conducted, and the resistance value of the first conductive path uniquely corresponds to the coordinate group in the plane. And when the fabric touch control equipment is in a stressed state and the stressed acting force is greater than a second preset value, the second good conductor is in contact with the third good conductor, and the second conductive path is conducted, so that the gradient change of the acting force is represented through the layer number of the third conductive layer connected into the second conductive path.

Description

Technical Field

[0001] The present application relates to the technical field of smart textiles, and in particular to a fabric touch-control device. Background Art

[0002] Fabric touch devices are widely used in the field of smart textiles, and their specific application areas include but are not limited to smart clothing, smart home, smart home textiles, smart car accessories, smart textile toys, etc. The main body of the fabric touch device is usually yarn, fiber, fabric, etc., and the fabric touch device can provide the smart device with single-point pressing position information and / or pressure size information during user operation.

[0003] Some existing fabric touch devices can only recognize the position information of a single-point press, but cannot recognize the pressure size at the same time. Although some can recognize the position information of a single-point press and the pressure size, in order to detect the continuous change of the pressure size, the structure of the fabric touch device is usually more complicated, and the stability and robustness are poor, so there is room for improvement. Summary of the invention

[0004] The main purpose of the present invention is to provide a fabric touch device that can realize the recognition of single-point pressing position information and pressure gradient changes, and has a simpler structure and better stability and robustness.

[0005] In a first aspect, an embodiment provides a fabric touch device, comprising:

[0006] A first conductive layer, wherein the first conductive layer comprises a first base layer, a first semiconductor and a first good conductor, wherein the first semiconductor and the first good conductor are both disposed on the first base layer, and one end of the first good conductor is connected to the first semiconductor, and the other end of the first good conductor extends on the first base layer;

[0007] a second conductive layer, wherein the second conductive layer comprises a second base layer, a second semiconductor and a second good conductor, wherein the second semiconductor and the second good conductor are both disposed on the second base layer, and one end of the second good conductor is connected to the second semiconductor, and the other end extends on the second base layer;

[0008] and at least one third conductive layer, wherein the first conductive layer, the second conductive layer and the third conductive layer are stacked in sequence, the third conductive layer comprises a third base layer and a third good conductor, and the third good conductor is arranged on the third base layer;

[0009] The fabric touch device can be switched between a stressed state under the action of an external force and a non-stressed state under the action of no external force; when the fabric touch device is in the non-stressed state, the first conductive layer is isolated from the second conductive layer, and the second conductive layer is isolated from the third conductive layer;

[0010] When the fabric touch device is in the force-bearing state and the force applied is greater than a first preset value, the first good conductor contacts the second good conductor, so that the first semiconductor, the first good conductor, the second good conductor and the second semiconductor together form a first conductive path, and the resistance value of the first conductive path uniquely corresponds to a coordinate group in a plane, and each of the coordinate groups includes a first coordinate value indicating a position in a first direction in the plane and a second coordinate value indicating a position in a second direction in the plane;

[0011] When the fabric touch device is in the force-bearing state and the force applied is greater than a second preset value, the second good conductor contacts the third good conductor, so that the second semiconductor, the second good conductor and at least one layer of the third good conductor together form a second conductive path, so that the gradient change of the force magnitude is characterized by the number of layers of the third conductive layer connected to the second conductive path.

[0012] In one embodiment, the third conductive layer is configured as at least two layers, the second preset value includes at least two different gradient values, and the gradient value corresponds to the number of layers of the third conductive layer; the fabric touch device is in the non-stressed state, and adjacent third conductive layers are kept isolated; when the fabric touch device is in the stressed state and the force applied is greater than any of the gradient values, the third conductive layers of the number of layers corresponding to the gradient value are connected to the second conductive path.

[0013] In one embodiment, the first good conductor includes a plurality of first extension portions, one end of the first extension portion is connected to the first semiconductor, and the other end extends on the first base layer, and the plurality of first extension portions do not contact each other; the second good conductor includes a plurality of second extension portions, one end of the second extension portion is connected to the second semiconductor, and the other end extends on the second base layer, and the plurality of second extension portions do not contact each other; the third good conductor includes a base portion and a plurality of third extension portions, one end of the third extension portion is connected to the second base portion, and the other end extends on the third base layer, and the plurality of third extension portions do not contact each other.

[0014] In one embodiment, the third good conductor includes at least two base parts, each of the base parts is connected to a part of the plurality of third extension parts, and each of the third extension parts is correspondingly connected to only one base part;

[0015] The second preset value includes at least two different gradient values, and the gradient value corresponds to the number of the base parts; when the fabric touch device is in the force state and the force is greater than any of the gradient values, the base parts corresponding to the number of the gradient values ​​are connected to the second conductive path.

[0016] In one embodiment, the third good conductor includes two base parts, the two base parts are respectively a first base part and a second base part; a part of the plurality of third extension parts is connected to the first base part, and another part of the plurality of third extension parts is connected to the second base part;

[0017] The second preset value includes two different gradient values. When the fabric touch device is in the force state and the force is greater than the smaller one of the two gradient values, the first base portion is connected to the second conductive path; when the force is greater than the larger one of the two gradient values, the second base portion is also connected to the second conductive path.

[0018] In one embodiment, the first base portion and the second base portion are respectively arranged on opposite sides of the third base layer, the third extension portion is arranged between the first base portion and the second base portion, and the third extension portion connected to the first base portion and the third extension portion connected to the second base portion are arranged alternately in sequence;

[0019] When the fabric touch device is in the force state and the force is greater than the smaller one of the two gradient values, one of the two adjacent third extension parts connected to the first base part is connected to the second conductive path; when the force is greater than the larger one of the two gradient values, both of the two adjacent third extension parts are connected to the second conductive path.

[0020] In one embodiment, the first good conductor further includes a plurality of first extension portions, each of the first extension portions is provided with a plurality of first extension portions at intervals, and the first extension portions extend from the first extension portion to its periphery; and / or,

[0021] The second good conductor further includes a plurality of second extension portions, each of the second extension portions is provided with a plurality of second extension portions at intervals, and the second extension portions extend from the second extension portion to its periphery; and / or,

[0022] The third good conductor further includes a plurality of third extension portions, each of the third extension portions is provided with a plurality of third extension portions at intervals, and the third extension portions extend from the third extension portion to its periphery.

[0023] In one embodiment, the third conductive layer has a conductive area, the orthographic projection of the second good conductor on the third conductive layer completely overlaps with the conductive area, and the third good conductor completely covers the conductive area.

[0024] In one embodiment, it also includes an elastic isolation layer, which is stacked between the first conductive layer and the second conductive layer, and / or between the second conductive layer and the third conductive layer; the elastic isolation layer has a through hole, which is used to make the first conductive layer and the second conductive layer contact each other through the through hole to form the first conductive path when subjected to external force, and / or make the second conductive layer and the third conductive layer contact each other through the through hole to form the second conductive path.

[0025] In one embodiment, a non-conductive protrusion structure is further included, and the protrusion structure is arranged between the first conductive layer and the second conductive layer, and / or between the second conductive layer and the third conductive layer; the protrusion structure is used to play a supporting role so that the first conductive layer and the second conductive layer are kept isolated by the gap, and / or the second conductive layer and the third conductive layer are kept isolated by the gap.

[0026] According to the fabric touch device of the above embodiment, the fabric touch device includes a first conductive layer, a second conductive layer and at least one third conductive layer. The first conductive layer includes a first base layer, a first semiconductor and a first good conductor, the first semiconductor and the first good conductor are both arranged on the first base layer, one end of the first good conductor is connected to the first semiconductor, and the other end extends on the first base layer. The second conductive layer includes a second base layer, a second semiconductor and a second good conductor, the second semiconductor and the second good conductor are both arranged on the second base layer, one end of the second good conductor is connected to the second semiconductor, and the other end extends on the second base layer. The first conductive layer, the second conductive layer and the third conductive layer are stacked in sequence, the third conductive layer includes a third base layer and a third good conductor, and the third good conductor is arranged on the third base layer. The fabric touch device can switch between a stressed state under the action of an external force and a non-stressed state without the action of an external force. When the fabric touch device is in a non-stressed state, the first conductive layer is isolated from the second conductive layer, and the second conductive layer is isolated from the third conductive layer. When the fabric touch device is in a state of being subjected to force and the force applied is greater than a first preset value, the first good conductor contacts the second good conductor, so that the first semiconductor, the first good conductor, the second good conductor and the second semiconductor jointly form a first conductive path, and the resistance value of the first conductive path uniquely corresponds to a coordinate group in the plane, and each coordinate group includes a first coordinate value representing a position in a first direction in the plane and a second coordinate value representing a position in a second direction in the plane. When the fabric touch device is in a state of being subjected to force and the force applied is greater than a second preset value, the second good conductor contacts the third good conductor, so that the second semiconductor, the second good conductor and at least one layer of the third good conductor jointly form a second conductive path, and the gradient change of the magnitude of the force is characterized by the number of layers of the third conductive layer connected to the second conductive path.

[0027] On the one hand, when the user presses the fabric touch device, if the pressure applied by the user is greater than the first preset value, the first good conductor can be brought into contact with the second good conductor, thereby making the first conductive path conductive, and then the coordinate group information of the user's pressing position can be obtained by measuring the resistance value of the first conductive path, that is, the first coordinate value of the user's pressing position in the first direction and the second coordinate value in the second direction in the plane are obtained. If the pressure applied by the user is greater than the second preset value, the second good conductor can be brought into contact with the third good conductor, thereby making the second conductive path conductive, and the number of layers of the third conductive layer connected to the second conductive path can characterize the gradient change of the force. The fabric control device can detect both the single-point pressing position information of the user and the gradient change of the user's pressure. On the other hand, the third conductive layer only includes the third base layer and the third good conductor, which makes its structure simple, not prone to failure, and not easily affected by changes in the external environment, which is conducive to improving the stability and robustness of the fabric touch device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a fabric touch device in one embodiment of the present application;

[0029] Figure 2 This is a structural schematic diagram of a fabric touch device in a second embodiment of the present application;

[0030] Figure 3 This is a structural schematic diagram of a fabric touch device in a third embodiment of the present application;

[0031] Figure 4 This is a schematic structural diagram of the second conductive layer in one embodiment of the present application;

[0032] Figure 5 This is a schematic structural diagram of the second conductive layer in another embodiment of the present application;

[0033] Figure 6 This is a schematic structural diagram of the third conductive layer in one embodiment of the present application;

[0034] Figure 7 This is a schematic diagram of the structure of the third conductive layer in the second embodiment of the present application;

[0035] Figure 8 This is a schematic structural diagram of the third conductive layer in the third embodiment of the present application;

[0036] Figure numerals: 100, first conductive layer; 110, first base layer; 120, first semiconductor; 130, first good conductor; 131, first extension portion; 200, second conductive layer; 210, second base layer; 220, second semiconductor; 230, second good conductor; 231, second extension portion; 232, second extension portion; 300, third conductive layer; 310, third base layer; 320, third good conductor; 321, base portion; 3211, first base portion; 3212, second base portion; 322, third extension portion; 323, third extension portion; 400, elastic isolation layer. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0038] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0039] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0040] This embodiment provides a fabric touch-controlled device.

[0041] Please refer to Figure 1-8 The fabric touch device includes a first conductive layer 100 , a second conductive layer 200 and at least one third conductive layer 300 .

[0042] Please refer to Figure 1-3The first conductive layer 100 includes a first base layer 110, a first semiconductor 120 and a first good conductor 130. The first semiconductor 120 and the first good conductor 130 are both disposed on the first base layer 110. One end of the first good conductor 130 is connected to the first semiconductor 120, and the other end extends on the first base layer 110. The second conductive layer 200 includes a second base layer 210, a second semiconductor 220 and a second good conductor 230. The second semiconductor 220 and the second good conductor 230 are both disposed on the second base layer 210. One end of the second good conductor 230 is connected to the second semiconductor 220, and the other end extends on the second base layer 210. The first conductive layer 100, the second conductive layer 200 and the third conductive layer 300 are stacked in sequence. The third conductive layer 300 includes a third base layer 310 and a third good conductor 320. The third good conductor 320 is disposed on the third base layer 310. The fabric touch device can switch between a stressed state under the action of an external force and a non-stressed state without the action of an external force. The fabric touch device is in a non-stressed state, the first conductive layer 100 is isolated from the second conductive layer 200, and the second conductive layer 200 is isolated from the third conductive layer 300. When the fabric touch device is in a stressed state and the applied force is greater than a first preset value, the first good conductor 130 contacts the second good conductor 230, so that the first semiconductor 120, the first good conductor 130, the second good conductor 230 and the second semiconductor 220 jointly form a first conductive path, and the resistance value of the first conductive path uniquely corresponds to the coordinate group in the plane, and each coordinate group includes a first coordinate value representing a position in the first direction in the plane and a second coordinate value representing a position in the second direction in the plane. When the fabric touch device is in a stressed state and the applied force is greater than a second preset value, the second good conductor 230 contacts the third good conductor 320, so that the second semiconductor 220, the second good conductor 230 and at least one layer of the third good conductor 320 jointly form a second conductive path, so that the gradient change of the applied force is characterized by the number of layers of the third conductive layer 300 connected to the second conductive path.

[0043] On the one hand, when the user presses the fabric touch device, if the pressure applied by the user is greater than the first preset value, the first good conductor 130 can be brought into contact with the second good conductor 230, so that the first conductive path is turned on, and then the coordinate group information of the user's pressing position can be obtained by measuring the resistance value of the first conductive path, that is, the first coordinate value of the user's pressing position in the first direction and the second coordinate value in the second direction in the plane are obtained. If the pressure applied by the user is greater than the second preset value, the second good conductor 230 can be brought into contact with the third good conductor 320, so that the second conductive path is turned on, and the number of layers of the third conductive layer 300 connected to the second conductive path can represent the gradient change of the force. The fabric control device can detect both the single-point pressing position information of the user and the gradient change of the user's pressure. On the other hand, the third conductive layer 300 only includes the third base layer 310 and the third good conductor 320, so that its structure is simple, not prone to failure, and not easily affected by changes in the external environment, which is conducive to improving the stability and robustness of the fabric touch device. The first preset value of the pressure in this embodiment can be regarded as less than the second preset value.

[0044] Please refer to Figure 1-3 It should be noted that the first good conductor 130 can be arranged below the first base layer 110, that is, the side of the first base layer 110 facing the second conductive layer 200, and the second good conductor 230 can conduct electricity on both the front and back sides of the second base layer 210. The resistivity of the first semiconductor 120 and the second semiconductor 220 can be different or the same. When the resistivity of the first semiconductor 120 and the second semiconductor 220 is different, and a plurality of first extensions 131 are drawn from different positions of the first semiconductor 120, and a plurality of second extensions 231 are drawn from different positions of the second semiconductor 220, when the user presses different positions to make the first extension 131 and the second extension 231 contact and conduct, the resistance value of the first conductive path is unique, so that it is convenient to correspond the plane position coordinates with the resistance value. When the resistivity of the first semiconductor 120 and the second semiconductor 220 is the same, the position where the first extension portion 131 is led out from the first semiconductor 120 and the position where the second extension portion 231 is led out from the second semiconductor 220 can be intentionally set so that the on-resistance value at any point in the plane is a unique value, thereby corresponding the resistance value to the plane position coordinates one by one.

[0045] Please refer to Figure 1-3For example, the conductor resistivity of the first semiconductor 120 and the second semiconductor 220 may differ by more than one hundred times, the resistance value of the first semiconductor 120 connected to the first conductive path may be an integer multiple of 1000 kΩ, and the resistance value of the second semiconductor 220 connected to the first conductive path may be an integer multiple of 1 kΩ. In this way, when the resistance value of the total series resistance of the first conductive path is four significant digits, such as 9001 kΩ, the first two digits of the total series resistance represent that the lead-out position of the first semiconductor 120 is the position where the 9th first extension portion 131 is located, that is, the horizontal coordinate is 9, and the last two digits of the total series resistance represent that the lead-out position of the second semiconductor 220 is the position where the 1st second extension portion 231 is located, that is, the vertical coordinate is 1, thereby forming a one-to-one correspondence between resistance and position.

[0046] In summary, through the above design, when the user presses on different positions of the fabric touch device, part of the first semiconductor 120 and part of the second semiconductor 220 are connected in series, and the resistance value of the series connection is a unique value, which corresponds to a unique set of coordinates in a plane, so that the user's pressing position can be determined by the resistance value of the first conductive path.

[0047] It should be noted that the position coordinate system formed by the first conductive layer 100 and the second conductive layer 200 is not limited to the Cartesian plane coordinate system, and may also adopt a plane polar coordinate system, a cylindrical coordinate system, a spherical coordinate system, etc. For example, the first semiconductor 120 of the first conductive layer 100 is arranged around a circle, and the first good conductor 130 electrically connected thereto is arranged in a radial shape, and the second semiconductor 220 of the second conductive layer 200 is arranged along the radius of the circle, and the second good conductor 230 electrically connected thereto is arranged in a plurality of incomplete circular rings, so that the coordinates of the polar coordinate system can be detected.

[0048] Please refer to Figure 1-3 , the first preset value of the pressure in this embodiment can be regarded as being smaller than the second preset value. When it is detected that the first conductive path is on and the second conductive path is off, it can be determined that the force applied by the user is greater than the first preset value and less than the second preset value. When both the first conductive path and the second conductive path are on, it can be determined that the force applied by the user is greater than the second preset value. That is, the approximate range of the force applied by the user can be roughly determined simply from the on and off states of the first conductive path and the second conductive path.

[0049] Please refer to Figure 1-3In one embodiment, the first good conductor 130, the second good conductor 230 and the third good conductor 320 can all use metal-plated conductive fabrics such as copper-plated conductive fabrics, silver-plated conductive fabrics, and other conductive fabrics containing metal components. The first base layer 110, the second base layer 210 and the third base layer 310 can all use polyester plain woven fabrics. The first semiconductor 120 and the second semiconductor 220 can both be preferably polyurethane composite materials doped with graphene or carbon nanotubes. The first semiconductor 120 recommends a length resistance range of 0 to 1,000 ohms per centimeter, and the second semiconductor 220 recommends a length resistance range of 100,000 to 200,000 ohms per centimeter. The third semiconductor is preferably a polyurethane composite material doped with graphene, and the recommended length resistance range is 1,000 to 10,000 ohms per centimeter. The elastic isolation layer 400 can all be selected from warp-knitted elastic knitted fabrics woven from polyurethane filaments. The elastic isolation layer 400 can also be selected from an elastic structure printed with a styrene block copolymer type thermoplastic elastomer. The adhesive should be a hot-melt polyurethane film, but the adhesive cannot cover the semiconductors and good conductors of each conductive layer, otherwise a short circuit will occur. Therefore, you can also use sewing to sew the five layers of material together in the non-touch area to avoid the occurrence of short circuits.

[0050] Please refer to Figure 1-3 In one embodiment, the number of the first extension part 131 and the second extension part 231 are both five, and the first extension part 131 divides the first semiconductor 120 equally, and the second extension part 231 divides the second semiconductor 220 equally. According to the difference of the first extension part 131 connected to the first conductive path, the resistance value of the part of the first semiconductor 120 connected to the first conductive path is also different. For example, according to Figure 1 Counting from right to left, the resistance value of the first semiconductor 120 connected when the first extension 131 is turned on can be 200 ohms, 400 ohms, 600 ohms, 800 ohms, and 1,000 ohms. Similarly, the second extension 231 divides the second semiconductor 220 into 20,000 ohms, 40,000 ohms, 60,000 ohms, 80,000 ohms, and 100,000 ohms that can be connected to the first conductive path. In this way, when the user presses the intersection of the first good conductor 130 and the second good conductor 230, the multimeter can measure the resistance, for example, 40,600 ohms, which can be inferred to be the intersection of the third first good conductor 130 and the second second good conductor 230.

[0051] Please refer to Figure 2In one embodiment, the first semiconductor 120 and the second semiconductor 220 are both configured as a plurality of disconnected parts, the disconnected gaps in the first semiconductor 120 are connected by the first good conductor 130, and the disconnected gaps in the second semiconductor 220 are connected by the second good conductor 230. This embodiment does not require a huge difference in resistance between the first semiconductor 120 and the second semiconductor 220, but only requires that the resistance value of each intersection of the first good conductor 130 and the second good conductor 230 is different. For example, Figure 2 The resistance values ​​of the 25 intersections where the first good conductor 130 and the second good conductor 230 can be connected can be set to 211 kOhm, 228 kOhm, 239 kOhm, 248 kOhm, 261 kOhm, 278 kOhm, 289 kOhm, 301 kOhm, 316 kOhm, 333 kOhm, 359 kOhm, 378 kOhm, 399 kOhm, 414 kOhm, 438 kOhm, 450 kOhm, 479 kOhm, 490 kOhm, 512 kOhm, 535 kOhm, 565 kOhm, 587 kOhm, 609 kOhm, 635 kOhm, 666 kOhm. Of course, in other embodiments, it can also be flexibly adjusted according to actual conditions, as long as the resistance value of each intersection of the first good conductor 130 and the second good conductor 230 is different.

[0052] Please refer to Figure 3 In one embodiment, the third conductive layer 300 is configured as at least two layers, and the second preset value includes at least two different gradient values, and the gradient value corresponds to the number of layers of the third conductive layer 300. The fabric touch device is in a non-stressed state, and adjacent third conductive layers 300 are isolated. When the fabric touch device is in a stressed state, and the applied force is greater than any gradient value, the third conductive layers 300 corresponding to the gradient value are connected to the second conductive path.

[0053] On the one hand, since the third conductive layer 300 has only two states, namely, on and off, its structure is simple, and its stability and robustness are good. On the other hand, the gradient change of the magnitude of the force can be characterized by the number of layers of the third conductive layer 300 connected to the second conductive path. For example, the second preset value includes a first gradient value, a second gradient value... and an Nth gradient value arranged in order from small to large. When the pressure of the user pressing the fabric touch device reaches the first gradient value, the second conductive layer 200 is brought into contact with a third conductive layer 300 closest to it, so that a third conductive layer 300 is connected to the second conductive path. When the pressure of the user pressing the fabric touch device reaches the second gradient value, the deformation degree of the fabric touch device can be further increased, so that the two third conductive layers 300 close to the second conductive layer 200 are both connected to the second conductive path. Similarly, the situation of the third gradient value... to the Nth gradient value can be derived. Conversely, when it is detected that the third conductive layer 300 closest to the second conductive layer 200 switches to the on state, it can be determined that the pressure applied by the user has reached the first gradient value; when it is detected that both third conductive layers 300 close to the second conductive layer 200 switch to the on state, it can be determined that the pressure applied by the user has reached the second gradient value, and so on.

[0054] Please refer to Figure 4-7 In one embodiment, the first good conductor 130 includes a plurality of first extensions 131, one end of the first extension 131 is connected to the first semiconductor 120, and the other end extends on the first base layer 110, and the plurality of first extensions 131 do not contact each other. The second good conductor 230 includes a plurality of second extensions 231, one end of the second extension 231 is connected to the second semiconductor 220, and the other end extends on the second base layer 210, and the plurality of second extensions 231 do not contact each other. The third good conductor 320 includes a base portion 321 and a plurality of third extensions 322, one end of the third extension 322 is connected to the second base portion 3212, and the other end extends on the third base layer 310, and the plurality of third extensions 322 do not contact each other.

[0055] On the one hand, by providing the first extension part 131 and the second extension part 231, and the first extension part 131 and the second extension part 231 are generally strip-shaped structures, when the user's finger presses the intersection of the first extension part 131 and the second extension part 231, the first extension part 131 and the second extension part 231 can be brought into contact and conduction. That is, the sensitivity of the touch device generally depends on the distribution density of the first extension part 131 and the second extension part 231. On the other hand, by making the third good conductor 320 include a base part 321 and a plurality of third extension parts 322, compared with the solution of laying the third good conductor 320 in pieces on the third base layer 310, it is beneficial to save the material of the third good conductor 320, thereby reducing the cost of the fabric touch device. Specifically, the third extension part 322 can be arranged one-to-one with the second extension part 231 in a direction perpendicular to the third base layer 310, so that when the user presses the fabric touch device, the second extension part 231 and the third extension part 322 are brought into contact.

[0056] Please refer to Figure 1 and 8 In one embodiment, the third good conductor 320 includes at least two base parts 321, each base part 321 is connected to a part of the plurality of third extension parts 322, and each third extension part 322 is connected to only one base part 321. The second preset value includes at least two different gradient values, and the gradient value corresponds to the number of base parts 321. When the fabric touch device is in a force state and the force is greater than any gradient value, the base parts 321 corresponding to the gradient value are connected to the second conductive path.

[0057] The single-layer third conductive layer 300 can correspond to at least two different gradient values, and then when the number of layers of the third conductive layer 300 is the same, the fabric touch device can be used to identify pressures of more different gradient values. For example, the second preset value includes a first gradient value, a second gradient value... and an Nth gradient value arranged in order from small to large. When the pressure of the user pressing the fabric touch device reaches the first gradient value, one base part 321 is connected to the second conductive path, and when the pressure of the user pressing the fabric touch device reaches the second gradient value, the deformation degree of the fabric touch device can be further increased, so that the two base parts 321 are connected to the second conductive path. Similarly, the third gradient value... to the Nth gradient value can be derived. Conversely, since each base part 321 can be led out through a separate wire, it is possible to judge which gradient value the pressure applied by the user has reached based on the number of base parts 321 switched to the conductive state.

[0058] It can be understood that the solution in which each third conductive layer 300 corresponds to at least two different gradient values ​​can be used in combination with the solution in which multiple third conductive layers 300 are provided.

[0059] Please refer to Figure 1 and 8 In one embodiment, the third good conductor 320 includes two base parts 321, and the two base parts 321 are respectively a first base part 3211 and a second base part 3212. A part of the plurality of third extension parts 322 is connected to the first base part 3211, and another part of the plurality of third extension parts 322 is connected to the second base part 3212. The second preset value includes two different gradient values. When the fabric touch device is in a force state and the force is greater than the smaller one of the two gradient values, the first base part 3211 is connected to the second conductive path. When the force is greater than the larger one of the two gradient values, the second base part 3212 is also connected to the second conductive path.

[0060] The single-layer third conductive layer 300 can correspond to two different gradient values, and the two gradient values ​​can be a first gradient value and a second gradient value arranged in order from small to large. When the pressure applied by the user is greater than the first gradient value, the first base part 3211 can be connected to the second conductive path, and when the pressure applied by the user is greater than the second gradient value, the second base part 3212 can also be connected to the second conductive path. Conversely, when it is detected that the first base part 3211 is switched to the on state and the second base part 3212 is in the off state, it can be determined that the pressure applied by the user is between the first gradient value and the second gradient value. When it is detected that both the first base part 3211 and the second base part 3212 are switched to the on state, it can be determined that the pressure applied by the user is greater than the second gradient value.

[0061] Please refer to Figure 1 and 6 -8, in one embodiment, the first base portion 3211 and the second base portion 3212 are respectively arranged on opposite sides of the third base layer 310, the third extension portion 322 is arranged between the first base portion 3211 and the second base portion 3212, and the third extension portion 322 connected to the first base portion 3211 and the third extension portion 322 connected to the second base portion 3212 are arranged alternately in sequence. When the fabric touch device is in a force-bearing state, and the force is greater than the smaller of the two gradient values, one of the two adjacent third extension portions 322 connected to the first base portion 3211 is connected to the second conductive path, and when the force is greater than the larger of the two gradient values, both of the two adjacent third extension portions 322 are connected to the second conductive path.

[0062] The two gradient values ​​may be a first gradient value and a second gradient value arranged in order from small to large, by arranging the first base part 3211 and the second base part 3212 relative to and staggered, and arranging the third extension part 322 connected to the first base part 3211 and the third extension part 322 connected to the second base part 3212 alternately in order. When the pressure applied by the user is greater than the first gradient value, one of the two adjacent third extension parts 322 connected to the first base part 3211 can be connected to the second conductive path, thereby connecting the first base part 3211 to the second conductive path. When the pressure applied by the user is greater than the second gradient value, both of the two adjacent third extension parts 322 can be connected to the second conductive path, thereby connecting both the first base part 3211 and the second base part 3212 to the second conductive path. Conversely, when it is detected that the first base portion 3211 switches to the on state and the second base portion 3212 is in the off state, it can be determined that the pressure applied by the user is between the first gradient value and the second gradient value. When it is detected that both the first base portion 3211 and the second base portion 3212 switch to the on state, it can be determined that the pressure applied by the user is greater than the second gradient value.

[0063] Please refer to Figure 1 and 6 -8, specifically, when the third conductive layer 300 is disposed adjacent to the second conductive layer 200, in a direction perpendicular to the third conductive layer 300, the third extension portion 322 connected to the first base portion 3211 may be disposed in one-to-one correspondence with the second extension portion 231, and the third extension portion 322 connected to the second base portion 3212 is misaligned with the second extension portion 231. When the user presses with a smaller first gradient value of pressure, the force-bearing portion of the second conductive layer 200 is less deformed, and the through hole of the elastic isolation layer 400 is opened smaller due to the deformation, so that only a small area of ​​the second expansion portion 232 on the second extension portion 231 passes through the through hole, thereby contacting the third extension portion 322 connected to the first base portion 3211, thereby making the first base portion 3211 conductive. When the user presses with a larger pressure of the second gradient value, the force-bearing part of the second conductive layer 200 is greatly deformed, and the through hole of the elastic isolation layer 400 is opened wider due to the deformation, so that a larger part of the area of ​​the second extension part 232 on the second extension part 231 passes through the through hole, thereby contacting the third extension part 322 connected to the first base part 3211 and the third extension part 322 connected to the second base part 3212, thereby making the first base part 3211 and the second base part 3212 conductive. Of course, the above working process can also be achieved without relying on the second extension part 232, but by increasing the width of the second extension part 231.

[0064] It can be understood that, based on the same principle, when another third conductive layer 300 is provided above the third conductive layer 300, the upper third conductive layer 300 can be set to have only one base portion 321, and the lower third conductive layer 300 can be set to have a first base portion 3211 and a second base portion 3212, and the third extension portion 322 connected to the first base portion 3211 is arranged one-to-one with the third extension portion 322 of the upper third conductive layer 300, while the third extension portion 322 connected to the second base portion 3212 is staggered at a certain position.

[0065] Please refer to Figure 1-5 7. In one embodiment, the first good conductor 130 further includes a plurality of first extension portions (not shown), each first extension portion 131 is provided with a plurality of first extension portions at intervals, and the first extension portions extend from the first extension portion 131 to the periphery thereof. And / or, the second good conductor 230 further includes a plurality of second extension portions 232, each second extension portion 231 is provided with a plurality of second extension portions 232 at intervals, and the second extension portions 232 extend from the second extension portion 231 to the periphery thereof. And / or, the third good conductor 320 further includes a plurality of third extension portions 323, each third extension portion 322 is provided with a plurality of third extension portions 323 at intervals, and the third extension portions 323 extend from the third extension portion 322 to the periphery thereof.

[0066] On the one hand, the pressing sensitivity of the fabric touch device can be improved by providing the first extension part, the second extension part 232 and the third extension part 323. In some embodiments, the first extension part 131 and the second extension part 231 are generally strip-shaped structures. When the user's finger presses the intersection of the first extension part 131 and the second extension part 231, the first extension part 131 and the second extension part 231 can be brought into contact and conduction. That is, the sensitivity of the touch device in these embodiments generally depends on the distribution density of the first extension part 131 and the second extension part 231. In this embodiment, by adding the first extension part and / or the second extension part 232, the area covered by the first good conductor 130 is increased by the first extension part, and the area covered by the second good conductor 230 is increased by the second extension part 232, so that when the user presses the fabric touch device, it is easier to achieve contact and conduction between the first good conductor 130 and the second good conductor 230, which is conducive to improving the pressing sensitivity of the fabric touch device. On the other hand, by providing the third extension portion 323, in the above-mentioned scheme of making the single-layer third conductive layer 300 correspond to two pressure gradient values, the third extension portion 323 can be located above the third conductive layer 300 having two pressure gradients, so that the third extension portion 323 can be electrically connected to the third extension portion 322 connected to the first base portion 3211 below it when the pressure reaches a first gradient value based on the different pressures applied by the user, and be electrically connected to both the third extension portion 322 connected to the first base portion 3211 and the second base portion 3212 below it when the pressure reaches a second gradient value.

[0067] Specifically, the shapes of the first extension portion, the second extension portion 232 and / or the third extension portion 323 may be any shape, for example, a circle, a polygon, a wave shape, a fractal structure, a ray shape, a straight line shape of an array, a combination of multiple shapes or other irregular shapes, etc. The shapes of the first extension portion 131, the second extension portion 231, the third extension portion 322 and the fourth extension portion may also be any shape, for example, a straight line, a wave shape, a curve, a triangle, a rectangle, a square or other irregular shapes, etc. The shapes of the first semiconductor 120 and the second semiconductor 220 may be a continuous straight line segment, or a plurality of discontinuous straight line segments, or an arc shape or any other suitable shape.

[0068] Please refer to Figure 1-3 In one embodiment, the third conductive layer 300 has a conductive area, the orthographic projection of the second good conductor 230 on the third conductive layer 300 completely overlaps with the conductive area, and the third good conductor 320 completely covers the conductive area.

[0069] By covering the conductive area with the third good conductor 320 in pieces, the coverage area of ​​the third good conductor 320 is increased, which is beneficial to improve the sensitivity of the third conductive layer 300 .

[0070] Please refer to Figure 1-3 In one embodiment, the fabric touch device further includes an elastic isolation layer 400, which is stacked between the first conductive layer 100 and the second conductive layer 200, and / or between the second conductive layer 200 and the third conductive layer 300. The elastic isolation layer 400 has through holes, which are used to make the first conductive layer 100 and the second conductive layer 200 contact each other through the through holes and form a first conductive path when subjected to external force, and / or make the second conductive layer 200 and the third conductive layer 300 contact each other through the through holes and form a second conductive path.

[0071] When the fabric touch device is in a non-stressed state, the elastic isolation layer 400 disposed between the first conductive layer 100 and the second conductive layer 200 is used to isolate the first conductive layer 100 and the second conductive layer 200, and the elastic isolation layer 400 disposed between the second conductive layer 200 and the third conductive layer 300 is used to isolate the second conductive layer 200 and the third conductive layer 300. When the fabric touch device is in a stressed state, and the applied force is greater than a first preset value, the first conductive layer 100 squeezes the elastic isolation layer 400, causing the elastic isolation layer 400 to deform, thereby causing the first conductive layer 100 to contact the second conductive layer 200 through the through hole, thereby causing the first conductive path to be conductive. When the fabric touch device is in a stressed state, and the applied force is greater than a second preset value, similarly, the second conductive layer 200 and the third conductive layer 300 are in contact with each other through the through hole, thereby causing the second conductive path to be conductive.

[0072] Please refer to Figure 1-3 In one embodiment, the fabric touch device further includes a non-conductive protrusion structure (not shown), which is disposed between the first conductive layer 100 and the second conductive layer 200, and / or between the second conductive layer 200 and the third conductive layer 300. The protrusion structure is used to play a supporting role, so that the first conductive layer 100 and the second conductive layer 200 are isolated by the gap, and / or the second conductive layer 200 and the third conductive layer 300 are isolated by the gap.

[0073] When the fabric touch device is in a non-stressed state, the protrusion structure arranged between the first conductive layer 100 and the second conductive layer 200 keeps the first conductive layer 100 and the second conductive layer 200 isolated by the gap, and the protrusion structure arranged between the second conductive layer 200 and the third conductive layer 300 keeps the second conductive layer 200 and the third conductive layer 300 isolated by the gap. When the fabric touch device is in a stressed state, and the applied force is greater than the first preset value, the stressed part of the first conductive layer 100 is deformed to protrude toward the side where the gap is located, so that the first conductive layer 100 and the second conductive layer 200 are in contact with each other, thereby making the first conductive path conductive. When the fabric touch device is in a stressed state, and the applied force is greater than the second preset value, similarly, the second conductive layer 200 and the third conductive layer 300 are in contact with each other, thereby making the second conductive path conductive.

[0074] Please refer to Figure 1-3 It should be noted that the elastic isolation layer 400 and the protrusion structure can also be used in combination freely. For example, the elastic isolation layer 400 can be set between the first conductive layer 100 and the second conductive layer 200, and the protrusion structure can be set between the second conductive layer 200 and the third conductive layer 300. The spatial resolution of the fabric touch device can be achieved by changing the distribution density of the first good conductor 130 pattern in the first conductive layer 100 and the distribution density of the second good conductor 230 pattern in the second conductive layer 200, which may be accompanied by a change in the size of the through holes on the elastic isolation layer 400, or a change in the density of the non-conductive protrusions in the first conductive layer 100 and the second conductive layer 200. The pressing sensitivity of the fabric touch device is also related to the thickness of the elastic isolation layer 400 material, the elastic modulus, and the size and shape of the through holes.

[0075] The elastic isolation layer 400 can be a film or fabric (woven fabric, knitted fabric, braided fabric or non-woven fabric), and the material can be silicone, polyurethane, or other elastic polymer materials, so it has elasticity and can be bent and stretched at will. For example, elastic mesh fabric made of elastic fibers, elastic mesh fabric or elastic fabric with loose structure, etc. In addition, the additional elastic isolation layer 400 is made into a hole or mesh shape to limit the touch position to avoid touching the non-functional area. The protrusion structure includes protrusions formed by fiber weaving, and protrusions formed by dispensing polymer materials such as silicone, etc.

[0076] The first semiconductor 120, the second semiconductor 220, the first good conductor 130, the second good conductor 230 and the third good conductor 320 can be conductive film materials, conductive composite materials, conductive fiber materials, or conductive fiber aggregate materials, preferably flexible conductive polymer materials or conductive composite materials, such as polyimide films doped with graphene, polyethylene terephthalate films doped with carbon nanotubes, carbon fibers, etc. It is also possible to form a conductive part with a certain specification pattern on the surface or a certain part in the middle of the substrate by screen printing, plate printing, spraying or thermal bonding, weaving, sewing or embroidery. It is also possible to use a double-layer or multi-layer flexible conductive film obtained by deposition, chemical plating, electrochemical plating, etc. Of course, the conductive layer can also be a fabric with a metal coating or a conductive composite coating or an intrinsic conductive polymer coating, a fabric woven from conductive fibers, or a fabric woven from conductive fibers and non-conductive fibers.

[0077] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. A fabric touch device, characterized in that: include: A first conductive layer, wherein the first conductive layer comprises a first base layer, a first semiconductor and a first good conductor, wherein the first semiconductor and the first good conductor are both disposed on the first base layer, and one end of the first good conductor is connected to the first semiconductor, and the other end of the first good conductor extends on the first base layer; a second conductive layer, wherein the second conductive layer comprises a second base layer, a second semiconductor and a second good conductor, wherein the second semiconductor and the second good conductor are both disposed on the second base layer, and one end of the second good conductor is connected to the second semiconductor, and the other end extends on the second base layer; and at least one third conductive layer, wherein the first conductive layer, the second conductive layer and the third conductive layer are stacked in sequence, the third conductive layer comprises a third base layer and a third good conductor, and the third good conductor is arranged on the third base layer; The fabric touch device can be switched between a stressed state under the action of an external force and a non-stressed state under the action of no external force; when the fabric touch device is in the non-stressed state, the first conductive layer is isolated from the second conductive layer, and the second conductive layer is isolated from the third conductive layer; When the fabric touch device is in the force-bearing state and the force applied is greater than a first preset value, the first good conductor contacts the second good conductor, so that the first semiconductor, the first good conductor, the second good conductor and the second semiconductor together form a first conductive path, and the resistance value of the first conductive path uniquely corresponds to a coordinate group in a plane, and each of the coordinate groups includes a first coordinate value indicating a position in a first direction in the plane and a second coordinate value indicating a position in a second direction in the plane; When the fabric touch device is in the force-bearing state and the force applied is greater than a second preset value, the second good conductor contacts the third good conductor, so that the second semiconductor, the second good conductor and at least one layer of the third good conductor together form a second conductive path, so that the gradient change of the force magnitude is characterized by the number of layers of the third conductive layer connected to the second conductive path.

2. The fabric touch device according to claim 1, characterized in that: The third conductive layer is configured as at least two layers, the second preset value includes at least two different gradient values, and the gradient value corresponds to the number of layers of the third conductive layer; the fabric touch device is in the non-stressed state, and adjacent third conductive layers are kept isolated; When the fabric touch control device is in the force-bearing state and the force applied is greater than any of the gradient values, the third conductive layers corresponding to the gradient value are connected to the second conductive path.

3. The fabric touch device according to claim 1, characterized in that: The first good conductor includes a plurality of first extension parts, one end of the first extension part is connected to the first semiconductor, and the other end extends on the first base layer, and the plurality of first extension parts do not contact each other; the second good conductor includes a plurality of second extension parts, one end of the second extension part is connected to the second semiconductor, and the other end extends on the second base layer, and the plurality of second extension parts do not contact each other; the third good conductor includes a base part and a plurality of third extension parts, one end of the third extension part is connected to the second base part, and the other end extends on the third base layer, and the plurality of third extension parts do not contact each other.

4. The fabric touch device according to claim 3, characterized in that: The third good conductor includes at least two base parts, each of the base parts is connected to a part of the plurality of third extension parts, and each of the third extension parts is correspondingly connected to only one base part; The second preset value includes at least two different gradient values, and the gradient value corresponds to the number of the base parts; when the fabric touch device is in the force state and the force is greater than any of the gradient values, the base parts corresponding to the number of the gradient values ​​are connected to the second conductive path.

5. The fabric touch device according to claim 4, characterized in that: The third good conductor includes two base parts, which are respectively a first base part and a second base part; a part of the plurality of third extension parts is connected to the first base part, and another part of the plurality of third extension parts is connected to the second base part; The second preset value includes two different gradient values. When the fabric touch device is in the force state and the force is greater than the smaller one of the two gradient values, the first base portion is connected to the second conductive path; when the force is greater than the larger one of the two gradient values, the second base portion is also connected to the second conductive path.

6. The fabric touch device according to claim 5, characterized in that: The first base portion and the second base portion are respectively arranged on opposite sides of the third base layer, the third extension portion is arranged between the first base portion and the second base portion, and the third extension portion connected to the first base portion and the third extension portion connected to the second base portion are arranged alternately in sequence; When the fabric touch device is in the force state and the force is greater than the smaller one of the two gradient values, one of the two adjacent third extension parts connected to the first base part is connected to the second conductive path; when the force is greater than the larger one of the two gradient values, both of the two adjacent third extension parts are connected to the second conductive path.

7. The fabric touch device according to claim 3, characterized in that: The first good conductor further includes a plurality of first extension portions, each of the first extension portions is provided with a plurality of first extension portions at intervals, and the first extension portions extend from the first extension portion to its periphery; and / or, The second good conductor further includes a plurality of second extension portions, each of the second extension portions is provided with a plurality of second extension portions at intervals, and the second extension portions extend from the second extension portion to its periphery; and / or, The third good conductor further includes a plurality of third extension portions, each of the third extension portions is provided with a plurality of third extension portions at intervals, and the third extension portions extend from the third extension portion to its periphery.

8. The fabric touch device according to claim 1, characterized in that: The third conductive layer has a conductive area, the orthographic projection of the second good conductor on the third conductive layer completely overlaps with the conductive area, and the third good conductor completely covers the conductive area.

9. The fabric touch device according to any one of claims 1 to 8, characterized in that: It also includes an elastic isolation layer, which is stacked between the first conductive layer and the second conductive layer, and / or between the second conductive layer and the third conductive layer; the elastic isolation layer has a through hole, which is used to make the first conductive layer and the second conductive layer contact each other through the through hole to form the first conductive path when subjected to external force, and / or make the second conductive layer and the third conductive layer contact each other through the through hole to form the second conductive path.

10. The fabric touch device according to any one of claims 1 to 8, characterized in that: It also includes a non-conductive protrusion structure, which is arranged between the first conductive layer and the second conductive layer, and / or between the second conductive layer and the third conductive layer; the protrusion structure is used to play a supporting role so that the first conductive layer and the second conductive layer are kept isolated by the gap, and / or the second conductive layer and the third conductive layer are kept isolated by the gap.

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