CN112947802A - Touch sensing module, touch panel and electronic device - Google Patents

Abstract

The application relates to a touch sensing module, a touch panel and an electronic device, wherein the touch sensing module comprises an elastic substrate layer, a driving electrode layer and a sensing electrode layer, wherein the driving electrode layer and the sensing electrode layer are arranged on the elastic substrate layer; the driving electrode layer and the sensing electrode layer respectively comprise at least two sub-electrodes which are independent of each other; the driving sub-electrode and the inductor electrode are metal grids, and metal wires in the metal grids are wavy; the driving sub-electrode and the inductor electrode are crossed in the orthographic projection of the surface of the elastic base material layer. Because set up drive electrode layer and response electrode layer in can stretching the elastic substrate layer, and the metal wire in the metal grid is the wavy, make when touch-control response module is stretched, the metal wire in the metal grid is stretched to the straight line by the wavy, has improved touch-control response module's tensile performance.

Description

Touch sensing module, touch panel and electronic device

Technical Field

The present application relates to the field of touch technologies, and in particular, to a touch sensing module, a touch panel and an electronic device.

Background

With the rapid development of the intelligent electronic device technology, various touch sensing module products with touch panels appear in people's daily life, and the touch performance of the touch sensing module products becomes one of the focuses of people's attention.

The main consumer electronic devices on the market can be divided into three types according to the screen shape: the first is equipment carrying a flat display screen, such as apple iphone XR, Huawei P30, OPPO R17, VIVO X27 and the like, the product is common at present, the display screen can be a common LCD screen, a hard OLED screen and In-cell, SITO, DITO and other technologies which can be used In a touch scheme, and the technologies are mature, so that the cost performance of the equipment is high; the second type is equipment for carrying and fixing a curved screen, such as three-star Galaxy Note 9, S10, Hua Mate20 Pro, P30 Pro and the like, wherein the display screen adopts a flexible OLED technology, most touch schemes are SITO or Y-OCTA, and most of the equipment is high-end products; the third is emerging foldable screen equipment, such as flexible panel released by flexible space, Galaxy Fold released by samsung, and Mate X released by hua, and the display screen also adopts a flexible OLED screen, a touch layer except samsung can continue to use the Y-OCAT technology, and other terminals must adopt an external touch scheme because of the technical problems of low yield of the embedded touch scheme in a screen factory, and the like.

Disclosure of Invention

Accordingly, there is a need for a touch sensing module, a touch panel and an electronic device with good tensile properties.

One aspect of the application provides a touch sensing module, which includes an elastic substrate layer, and a driving electrode layer and a sensing electrode layer disposed on the elastic substrate layer;

the driving electrode layer comprises a plurality of mutually independent driving sub-electrodes, and the induction electrode layer comprises a plurality of mutually independent induction sub-electrodes;

the driving sub-electrode and the inductor electrode are metal grids, and metal wires in the metal grids are wavy; the driving sub-electrodes and the induction sub-electrodes are crossed in the orthographic projection of the surface of the elastic base material layer, so that the driving electrode layer, the elastic base material layer and the induction electrode layer form a plurality of induction capacitance units together.

In the touch sensing module in the above embodiment, the touch sensing module includes a driving electrode layer and a sensing electrode layer disposed on the elastic substrate layer, the driving electrode layer includes at least two mutually independent driving sub-electrodes, the sensing electrode layer includes at least two mutually independent sensing sub-electrodes, and since the driving sub-electrodes and the sensing sub-electrodes are crossed in the orthogonal projection of the elastic substrate layer, a plurality of sensing capacitance units are formed among the driving electrode layer, the elastic substrate layer, and the sensing electrode layer, and capacitance variation can be generated based on touch applied to the touch sensing module. The sensing capacitor units are respectively connected with the controller, so that the controller determines the touch position and/or the pressure based on the acquired capacitance variation. The drive electrode layer and the sensing electrode layer are arranged on the stretchable elastic base material layer, so that the touch sensing module has stretchable performance; through with drive sub-electrode with the inductor electrode sets up to the metal mesh, and sets up the metal wire in the metal mesh is the wave form, makes when touch-control response module is stretched, the metal wire in the metal mesh is stretched to the linearity by the wave form, has improved touch-control response module's tensile performance, has avoided the metal wire to be broken at tensile in-process effectively, makes touch-control response module has good tensile performance.

Further, in one embodiment, the sensing capacitor units are uniformly arranged along a direction perpendicular to the central axis thereof, so as to calculate and acquire position information of touch based on the capacitance variation of the sensing capacitor, which may include pressure information and/or position information of touch, through the controller.

Further, in one embodiment, the elastic base material layer includes a first elastic base plate and a second elastic base plate which are laminated; the induction electrode layer is arranged on the surface of the first elastic substrate far away from the second elastic substrate; the driving electrode layer is arranged on the surface, close to the first elastic substrate, of the second elastic substrate; the surface of the driving electrode layer close to the first elastic substrate is connected with the surface of the first elastic substrate close to the driving electrode layer in an overlapped mode. An induction electrode layer is directly arranged on the first surface of the first elastic substrate in a mode that the elastic substrate layer comprises a first elastic substrate and a second elastic substrate which are laminated; directly arranging a driving electrode layer on the first surface of the second elastic substrate; and then, overlapping and connecting the first elastic substrate and the second elastic substrate, wherein the surface of the driving electrode layer close to the first elastic substrate is overlapped and connected with the surface of the first elastic substrate close to the driving electrode layer. The embodiment provides a product structure of a touch sensing module with excellent tensile property, and the structure is simple, effective and convenient to manufacture.

Further, in one embodiment, a plurality of first grooves are formed in a surface of the first elastic substrate away from the second elastic substrate, the metal wires of the sensor electrodes are filled in the first grooves, a plurality of second grooves are formed in a surface of the second elastic substrate close to the first elastic substrate, and the metal wires of the driving sub-electrodes are filled in the second grooves. In this embodiment, the elastic substrate layer is provided with a first elastic substrate and a second elastic substrate which are stacked, a plurality of first grooves are formed in the surface of the first elastic substrate far away from the second elastic substrate, so that the metal wires of the sensor electrode are filled in the first grooves, a plurality of second grooves are formed in the surface of the second elastic substrate near the first elastic substrate, so that the metal wires of the driving sub-electrode are filled in the second grooves, and the sensor electrode has excellent tensile performance while the first elastic substrate plays an insulating protection role on the sensor electrode; the second elastic substrate has an insulation protection effect on the driving sub-electrode, and the driving sub-electrode has excellent tensile property.

Further, in one embodiment, the metal lines of the sensor electrodes are filled on the surface of the first flexible substrate far from the second flexible substrate, and the metal lines of the driving electrodes are filled on the surface of the second flexible substrate near the first flexible substrate. By disposing the inductor electrode and the driver electrode on the first surfaces of the first elastic substrate and the second elastic substrate, respectively, the inductor electrode and the driver electrode can be stretched as the first elastic substrate and the second elastic substrate are stretched, thereby allowing the inductor electrode and the driver electrode to have excellent stretchability.

Further, in one embodiment, the elastic substrate layer includes a first surface and a second surface opposite to each other, the first surface is provided with a plurality of third grooves, the metal wires of the sensor electrodes are filled in the third grooves, the second surface is provided with a plurality of fourth grooves, and the metal wires of the driving sub-electrodes are filled in the fourth grooves. Through being in respectively the elastic substrate layer the first surface with the second surface sets up a plurality of third recesses and a plurality of fourth recess, so that the metal wire of inductor sub-electrode fill in the third recess with the metal wire of drive sub-electrode fill in the fourth recess, not only make the elastic substrate layer is right inductor sub-electrode with the drive sub-electrode has insulating protection and good tensile performance, still makes the induction electrode layer with only include one deck elastic substrate layer between the drive electrode layer, reduced the product thickness of touch-control induction module effectively.

In one embodiment, the first surface and the second surface of the elastic substrate layer are planes, the sensor sub-electrode is located on the first surface, and the driving sub-electrode is located on the second surface. By providing the sensor electrode layer and the driving electrode layer on a first surface and a second surface opposite to the first surface of the elastic substrate layer, respectively, the sensor sub-electrode and the driving sub-electrode can be stretched along with the stretching of the elastic substrate layer, thereby enabling the sensor sub-electrode and the driving sub-electrode to have excellent stretchability. Because only one elastic substrate layer is arranged between the sensing electrode layer and the driving electrode layer, the product thickness of the touch sensing module is effectively reduced.

Further, in one embodiment, the touch sensing module further includes a circuit protection layer disposed outside the sensor sub-electrode and/or the driving sub-electrode. The circuit protection layer is arranged on the outer side of the inductor electrode and/or the driving sub-electrode, so that mutual influence among metal grids is avoided. The circuit protection layer is a transparent insulating layer to play an insulating protection role for each metal grid.

Furthermore, in one embodiment, the thickness of the circuit protection layer is 0.5um to 5um, so that the circuit protection layer is prevented from being introduced to increase the overall thickness of the touch sensing module while the metal grids are insulated and protected.

Further, in one embodiment, the touch sensing module further includes a protective cover plate stacked on the elastic substrate layer, and the surface of the elastic protective cover plate close to the elastic substrate layer is connected to the surface of the sensor electrode close to the elastic protective cover plate in an overlapped manner. The surface of the induction electrode layer far away from the elastic base material layer is provided with the elastic protection cover plate, so that the induction sub-electrode plays an insulating protection role and the touch induction module plays an insulating protection role.

Further, in one embodiment, the material of the driving sub-electrode and the sensor sub-electrode is at least one of gold, silver, copper, carbon, indium tin oxide, or graphene. The metal wires in the metal grids are in the form of metal thin wires with excellent conductivity, so that the conductivity of the metal grids is improved, and the touch sensing sensitivity of the touch sensing module is further improved.

Further, in one embodiment, the distance between the farthest two points of the driving sub-electrode and the induction sub-electrode on the cross section along the direction vertical to the surface of the elastic substrate layer is 50 μm-200 μm. Through the design of the distance range of the two farthest points on the cross section of the driving sub-electrode and the cross section of the inductor electrode, the driving sub-electrode and the inductor electrode have excellent conductive performance, and meanwhile the difficulty of reducing the overall thickness of the touch induction module is reduced.

Further, in one embodiment, the distance between the two farthest points of the metal wire along the cross section perpendicular to the central axis of the metal wire is 0.5 μm to 5 μm. The range of the distance of two furthest points on the cross section of the metal wire through design among the metal mesh makes when the metal mesh has good electric conductivity, reduced the degree of difficulty that reduces touch-control response module whole thickness.

Further, in one embodiment, the metal mesh has an opening ratio greater than or equal to 80%. Through the aperture opening ratio of improving the metal grid, the electric conductivity of the metal grid is improved, and then the touch sensing sensitivity of the touch sensing module is improved.

Further, in one embodiment, the metal mesh has a light transmittance of greater than or equal to 80%. Through the luminousness that improves metal mesh, the luminousness of touch-control response module has been improved.

Further, in one embodiment, the driving sub-electrodes and/or the sensing sub-electrodes are respectively and uniformly arranged along a preset direction. Through setting up the drive sub-electrode and/or the inductor sub-electrode is respectively along a predetermined direction align to grid, makes the drive sub-electrode with a plurality of induction capacitance units that form between the inductor sub-electrode are array distribution to in the position relation data table of establishing induction capacitance unit in touch-control response module, through with induction capacitance unit is connected with the controller respectively, and the size of the position and/or the pressure of touch-control is confirmed based on the electric capacity variation volume of acquireing to the controller of being convenient for, has reduced the calculation apply in the complexity of the position information of the touch-control of touch-control response module.

Further, in one embodiment, the touch sensing module further includes a plurality of first signal lines disposed on the first surface of the elastic substrate layer and/or the second surface opposite to the first surface, and configured to input or output signals to or from the sensing capacitor unit, where the first signal lines are wavy. The first signal lines used for inputting or outputting signals to the sensing capacitor unit are arranged in a wavy shape, so that when the touch sensing module is stretched, the first signal lines are stretched to be linear from the wavy shape, the first signal lines are effectively prevented from being broken in the stretching process, and the touch sensing module has excellent stretching performance.

Further, in one embodiment, the first surface and/or the second surface of the elastic substrate layer are respectively provided with a plurality of fifth grooves, and the first signal line is located in the fifth grooves. The elastic base material layer has good insulation protection effect on the first signal wire, and the first signal wire can stretch along with the stretching of the elastic base material layer, so that the first signal wire has excellent stretching performance.

Further, in one embodiment, the first signal line is located on the first surface and/or the second surface of the elastic substrate layer. By disposing the first signal line on the first surface and/or the second surface of the elastic base material layer, the first signal line can be stretched as the elastic base material layer is stretched, thus allowing the first signal line to have excellent stretchability.

In one embodiment, the touch sensing module further includes a plurality of second signal lines disposed at an edge of the elastic substrate layer, and configured to input or output signals to or from the driving electrode layer and the sensing electrode layer, where the second signal lines are metal grids, and metal lines in the metal grids are wavy. By providing the second signal lines for inputting or outputting signals to or from the drive electrode layer and the sense electrode layer as a metal mesh and providing the metal lines in the metal mesh in a non-linear form such as a wavy form, the second signal lines can be stretched as the elastic base material layer is stretched, thereby allowing the second signal lines to have excellent stretchability.

Further, in one embodiment, the first surface and/or the second surface of the elastic substrate layer are respectively provided with a plurality of sixth grooves, and the second signal line is located in the sixth grooves. The elastic base material layer has good insulation protection effect on the second signal wire, and meanwhile, the second signal wire can stretch along with the stretching of the elastic base material layer, so that the second signal wire has excellent stretching performance.

Further, in one embodiment, the second signal line is located on the first surface and/or the second surface of the elastic substrate layer. By disposing the second signal line on the first surface and/or the second surface of the elastic base material layer, the second signal line can be stretched as the elastic base material layer is stretched, thus allowing the second signal line to have excellent stretchability.

In one embodiment, a distance between the farthest two points of the second signal line in a cross section in a direction perpendicular to the first surface is less than or equal to 40 μm. Through the design the range of the distance of two furthest points on the cross section of second signal line for second signal line has good conductivity, has reduced the degree of difficulty that reduces touch-control response module whole thickness simultaneously.

In one embodiment, a distance between adjacent second signal lines is less than or equal to 40 μm. Through the restriction adjacent distance between the second signal line to reduce the volume that the second signal line occupied space has reduced the degree of difficulty that reduces the whole volume of touch-control response module.

In one embodiment, the metal lines in the second signal line have a distance of 0.5 μm to 3.5 μm between the two farthest points along a cross section perpendicular to the central axis direction. Through the design the range of the distance of two furthest points on the cross section of the metal wire in the second signal wire makes the second signal wire has good conductivity, has reduced the degree of difficulty that reduces touch-control response module whole thickness simultaneously.

In one embodiment, a distance between adjacent metal lines in the metal mesh in the second signal line is less than or equal to 8 μm. Through limiting the distance between the adjacent metal wires in the metal grids in the second signal wire, the size of the metal grids in the second signal wire is reduced, and the difficulty of reducing the whole size of the touch sensing module is reduced.

In one embodiment, the material of the metal line in the second signal line is at least one of gold, silver, copper, carbon, indium tin oxide, or graphene. The metal wires in the metal grids in the second signal wire are in the form of metal thin wires with excellent conductivity, so that the conductivity of the second signal wire is improved, and the touch sensing sensitivity of the touch sensing module is further improved.

An aspect of the present application provides a touch panel, including any one of the touch sensing modules according to the embodiments of the present application, configured to detect a capacitance variation of the sensing capacitive unit based on a touch applied to the touch sensing module; and the controller is respectively connected with each inductor sub-electrode and each driving sub-electrode and is used for acquiring the touch position based on the capacitance variation.

An aspect of the present application provides an electronic device, including any one of the touch sensing modules according to the embodiments of the present application, configured to detect a capacitance variation of the sensing capacitive unit based on a touch applied to the touch sensing module; and the controller is respectively connected with each inductor sub-electrode and each driving sub-electrode and is used for acquiring the touch position based on the capacitance variation.

In the touch panel or the electronic device in the above embodiments, since any one of the touch sensing modules described in the embodiments of the present application is used, the plurality of sensing capacitive units in the touch sensing module may generate a capacitance variation based on a touch applied to the touch sensing module. The controller determines the position and/or magnitude of the touch based on the acquired capacitance change amount. The drive electrode layer and the sensing electrode layer are arranged on the stretchable elastic base material layer, so that the touch sensing module has stretchable performance; the driving sub-electrodes and the inductor sub-electrodes are arranged into the metal grids, and the metal wires in the metal grids are arranged in a wavy manner, so that when the touch sensing module is stretched, the metal wires in the metal grids are stretched to be linear in a wavy manner. Thus, the stretchability of the touch sensing part in the touch panel or the electronic device is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain drawings of other embodiments based on these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a touch sensing module according to a first embodiment of the present disclosure.

Fig. 2 is a schematic orthographic projection view of the sensor electrode in fig. 1 on the surface of the first elastic substrate.

Fig. 3 is a schematic orthographic projection view of the driving sub-electrode in fig. 1 on the surface of the second elastic substrate.

Fig. 4 is a schematic structural diagram of a touch sensing module according to a second embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a touch sensing module according to a third embodiment of the present application.

Fig. 6 is a schematic structural diagram of a touch sensing module according to a fourth embodiment of the present disclosure.

Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In describing positional relationships, unless otherwise specified, when an element such as a layer, film or substrate is referred to as being "on" another film layer, it can be directly on the other film layer or intervening film layers may also be present. Further, when a layer is referred to as being "under" another layer, it can be directly under, or one or more intervening layers may also be present. It will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present.

Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application.

Throughout the description of the present application, it is to be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In addition, in the description of the present application, the meaning of "plurality", "superimposed", "stacked", "laminated", "each other", or "each other" is two or more unless otherwise specified.

In the present application, the terms "up" and "down" refer to the degree of the touch sensing module approaching the user during the application process, and the side relatively approaching the user is "up" and the side relatively far away from the user is "down". For example, the lower surface of the elastic substrate layer refers to the side of the elastic substrate layer away from the user.

In an embodiment of the present application, a touch sensing module includes an elastic substrate layer, and a driving electrode layer and a sensing electrode layer disposed on the elastic substrate layer; the driving electrode layer comprises at least two driving sub-electrodes which are independent of each other; the induction electrode layer comprises at least two mutually independent inductor electrodes; the induction capacitor unit is a metal grid, and metal wires in the metal grid are wavy; the driving sub-electrodes and the induction sub-electrodes are crossed in the orthographic projection of the surface of the elastic base material layer, so that a plurality of induction capacitance units are formed among the driving electrode layer, the elastic base material layer and the induction electrode layer.

Specifically, in the touch sensing module in the above embodiment, the sensing capacitor unit may generate capacitance variation information based on a touch applied to the touch sensing module, and the sensing capacitor unit is respectively connected to the controller, so that the controller may calculate a capacitance variation of the sensing capacitor unit based on the capacitance variation information, and obtain position information and/or pressure information of the touch according to the capacitance variation.

Specifically, after the touch sensing module receives a touch, the distance between the sensor sub-electrode and the driver sub-electrode decreases to different degrees along with different touch pressures, and the capacitance value of the formed sensing capacitance unit is correspondingly large according to a capacitance calculation formula C ═ S/4 π kd. Due to different touch pressures on the touch sensing module, each position of the touch sensing module generates corresponding strain, and further generates corresponding d value change. Therefore, a mutual relation database of capacitance change information of the plurality of sensing capacitance units in the touch sensing module and touch pressure information of the touch sensing module can be established. In practical applications, the sensing capacitor units may be respectively connected to a controller, the controller includes a memory and a processor, capacitance change information of each sensing capacitor unit in the touch sensing module at different positions in the touch sensing module under different touch pressures may be stored in the memory, and the processor may compare the capacitance change information of the sensing capacitor units detected by the touch sensing module with pre-stored capacitance change information, so as to determine pressure information of the touch sensing module. Wherein the pressure information may comprise the magnitude and/or location of the touch pressure.

Further, in the touch sensing module of the above embodiments, the sensing capacitor units may be arranged uniformly along a direction perpendicular to the central axis thereof. In this embodiment, a plurality of driving sub-electrodes in the driving electrode layer may be arranged uniformly along a direction perpendicular to a central axis thereof, and a plurality of sensing sub-electrodes in the sensing electrode layer may be arranged uniformly along a direction perpendicular to a surface of the elastic base material layer, and since the driving sub-electrodes and the sensing sub-electrodes intersect each other in a front projection of the surface of the elastic base material layer, a plurality of sensing capacitor units formed among the driving electrode layer, the elastic base material layer, and the sensing electrode layer are distributed in an array. The driving sub-electrode and/or the inductor electrode are/is a metal mesh, and the metal mesh can be one or more of a rectangle, a square, a triangle, a polygon or an irregular plane figure. Each metal grid can be connected with a controller through a lead wire, so that the controller can calculate the capacitance variation of the sensing capacitance unit based on the capacitance variation information and acquire the touch position according to the capacitance variation. Because the metal grid is positioned on the elastic base material layer, when the touch control induction module is stretched, a plurality of metal wires in the metal grid are stretched to be linear by the wavy shape, and the phenomenon that the metal wires are broken in the stretching process is effectively avoided, so that the touch control induction module has excellent stretching performance.

Further, in the touch sensing module in the above embodiment, the elastic substrate layer includes a first elastic substrate and a second elastic substrate that are stacked; the sensing electrode layer is arranged on the surface of the first elastic substrate far away from the second elastic substrate, and the driving electrode layer is arranged on the surface of the second elastic substrate close to the first elastic substrate; the surface of the driving electrode layer close to the first elastic substrate is connected with the surface of the first elastic substrate close to the driving electrode layer in an overlapped mode. In this embodiment, the connection mode is bonding with the first optical cement, preferably, the first optical cement is transparent and insulating, and the optical cement bonding mode can avoid reducing the light transmittance of the touch sensing module due to the use of an adhesive.

Specifically, in the touch sensing module in the above embodiment, a plurality of first grooves are formed on the surface of the first elastic substrate away from the second elastic substrate, the metal wires of the sensor electrodes are filled in the first grooves, a plurality of second grooves are formed on the surface of the second elastic substrate close to the first elastic substrate, and the metal wires of the driving electrodes are filled in the second grooves. The first elastic substrate has an insulating protection effect on the inductor electrode, and the inductor electrode has excellent tensile property; the second elastic substrate plays an insulation protection role for the driving sub-electrode, and meanwhile, the driving sub-electrode has excellent tensile performance. In other embodiments of the present application, the sensor sub-electrode may be disposed on a surface of the first flexible substrate away from the second flexible substrate, and the driving sub-electrode may be disposed on a surface of the second flexible substrate close to the first flexible substrate. So that the sensor electrode and the driving electrode can be stretched as the first elastic substrate and the second elastic substrate are stretched, thereby allowing the sensor electrode and the driving electrode to have excellent stretchability.

In an embodiment of the present application, the elastic substrate layer includes the first surface and the second surface which are opposite to each other, the first surface is provided with a plurality of third grooves, the metal wires of the sensor electrodes are filled in the third grooves, the second surface is provided with a plurality of fourth grooves, and the metal wires of the driving sub-electrodes are filled in the fourth grooves. The elastic substrate layer has an insulation protection effect on the induction sub-electrode and the driving sub-electrode and has excellent tensile property, and the induction electrode layer and the driving electrode layer only comprise one elastic substrate layer, so that the product thickness of the touch induction module is effectively reduced. In other embodiments of the present application, the sensor sub-electrodes may be disposed on the first surface, and the driving sub-electrodes may be disposed on the second surface. So that the sensor sub-electrode and the driving sub-electrode can be stretched along with the stretching of the elastic substrate layer, thereby enabling the sensor sub-electrode and the driving sub-electrode to have excellent stretching performance. Because only one elastic substrate layer is arranged between the sensing electrode layer and the driving electrode layer, the product thickness of the touch sensing module is effectively reduced.

Further, in an embodiment of the present application, the touch sensing module further includes a circuit protection layer disposed outside the sensor sub-electrode and/or the driving sub-electrode. The line protection layer is preferably provided as a transparent insulating layer. The thickness of circuit protective layer can be 0.5um-5um, when playing insulating protection effect to each metal mesh, has avoided the introduction of circuit protective layer and has increased the whole thickness of touch-control response module.

Further, in an embodiment of the present application, the touch sensing module further includes a protective cover plate stacked on the elastic substrate layer, and the surface of the elastic protective cover plate close to the elastic substrate layer is connected to the surface of the sensor electrode close to the elastic protective cover plate in an overlapped manner. The connection mode is that the second optical cement is used for bonding, the second optical cement is preferably transparent insulating cement, and the whole thickness of the touch control induction module is prevented from being increased due to the introduction of a circuit protection layer while the metal grids are protected in an insulating mode.

Further, in an embodiment of the present application, the elastic base layer may include one elastic base plate, or two or more elastic base plates stacked on each other. When the elastic substrate layer adopts an elastic substrate layer, an induction electrode layer and a driving electrode layer can be directly arranged on a first surface of the elastic substrate and a second surface opposite to the first surface respectively; when the elastic substrate layer adopts more than two layers of elastic substrates stacked on each other, the sensing electrode layer can be arranged on the first surface of the elastic substrate positioned at the top of the elastic substrate layer, the driving electrode layer is arranged on the lower surface of the elastic substrate positioned at the bottom of the elastic substrate layer, and the elastic substrates stacked on each other are preferably bonded by optical cement. The sensing electrode layer comprises at least two mutually independent sensing sub-electrodes, the driving electrode layer comprises at least two mutually independent driving sub-electrodes, the driving sub-electrodes and/or the sensing sub-electrodes are metal grids, metal wires in the metal grids are wavy, the driving sub-electrodes and the sensing sub-electrodes are crossed in the orthographic projection of the surface of the elastic base material layer, and therefore a plurality of sensing capacitance units are formed among the driving electrode layer, the elastic base material layer and the sensing electrode layer. In this embodiment, through setting up the form that the elasticity substrate layer is one deck elasticity base plate or two-layer above each other range upon range of elasticity base plate, provide multiple different production technology processes, especially set up the form that the elasticity substrate layer is one deck elasticity base plate, can reduce touch-control induction module's product thickness effectively.

Further, in the touch sensing module in the above embodiment, the elastic substrate layer may be made of at least one of silicone rubber, acrylate elastomer, polyurethane elastomer, nitrile rubber, vinylidene fluoride trifluoroethylene, and corresponding organic-inorganic and organic-organic composite materials thereof. The material of the metal wires in the metal grid may be at least one of gold, silver, copper, carbon, indium tin oxide, or graphene.

Further, in an embodiment of the present application, the touch sensing module further includes a plurality of first signal lines disposed on a first surface of the elastic substrate layer and a second surface opposite to the first surface, and configured to respectively input or output signals to or from the sensing capacitor units, where the first signal lines are wavy. In this embodiment, a plurality of fifth grooves may be respectively disposed on the first surface and/or the second surface of the elastic substrate layer, and the first signal line may be located in the fifth grooves. The elastic base material layer has good insulation protection effect on the first signal wire, and meanwhile, the first signal wire can stretch along with the stretching of the elastic base material layer, so that the first signal wire has excellent stretching performance. In other embodiments of the present application, the first surface and/or the second surface of the elastic substrate layer may be disposed to be a plane, and the first signal line is located on the first surface and/or the second surface of the elastic substrate layer. Through with first signal line set up on the first surface and/or the second surface of elasticity substrate layer to set up first signal line is the wave form, when touch-control response module is stretched, first signal line is stretched along with the stretch of elasticity substrate layer, and first signal line is stretched to the straightness by the wave form, has avoided first signal line breaking phenomenon's in stretching process emergence effectively, consequently makes touch-control response module has good tensile performance. Preferably, the first signal lines are uniformly arranged in the direction perpendicular to the central axis of the first signal lines, so that the first signal lines are distributed on the first surface of the elastic base material layer or the second surface opposite to the first surface, the wiring complexity is reduced, and the wiring attractiveness is improved.

Further, in an embodiment of the present application, the touch sensing module further includes a plurality of second signal lines disposed on one side of the elastic substrate layer, and configured to respectively input or output signals to or from the driving electrode layer and the sensing electrode layer, where the second signal lines are metal grids, and metal lines in the metal grids are wavy. In this embodiment, a plurality of sixth grooves may be respectively disposed on the first surface of the elastic substrate layer and/or on the second surface opposite to the first surface, and the second signal line is located in the sixth grooves. The elastic base material layer has good insulation protection effect on the second signal wire, and meanwhile, the second signal wire can stretch along with the stretching of the elastic base material layer, so that the second signal wire has excellent stretching performance. In other embodiments of the present application, the second signal line may be disposed on the first surface and/or the second surface of the elastic base material layer. Through with the second signal line set up on the first surface and/or the second surface of elasticity substrate layer to set up first signal line is the wave form, when touch-control response module is stretched, the second signal line is stretched along with the stretch of elasticity substrate layer, and the second signal line is stretched to the straightness by the wave form, has avoided the emergence of second signal line rupture phenomenon in stretching process effectively, consequently makes touch-control response module has good tensile performance.

In an embodiment of the present application, a touch panel is provided, including the touch sensing module according to any one of the embodiments of the present application, configured to detect a capacitance variation of the sensing capacitive unit based on a touch applied to the touch sensing module; and the controller is respectively connected with each inductor sub-electrode and each driving sub-electrode and is used for acquiring the touch position based on the capacitance variation.

In an embodiment of the present application, a touch display panel is provided, including the touch sensing module according to any one of the embodiments of the present application, configured to detect a capacitance variation of the sensing capacitive unit based on a touch applied to the touch sensing module; the display unit is positioned on one side far away from the lower surface of the touch sensing module; and the controller is respectively connected with each inductor sub-electrode, each driving sub-electrode and the display unit and is used for acquiring the touch position based on the capacitance variation.

In an embodiment of the present application, an electronic device is provided, including the touch sensing module according to any one of the embodiments of the present application, configured to detect a capacitance variation of the sensing capacitive unit based on a touch applied to the touch sensing module; and the controller is respectively connected with each inductor sub-electrode and each driving sub-electrode and is used for acquiring the touch position based on the capacitance variation.

Some embodiments of the invention are further described below with reference to the accompanying drawings.

In an embodiment of the present application, as shown in fig. 1, a touch sensing module provided by the present invention includes an elastic substrate layer, and a sensing electrode layer and a driving electrode layer disposed on the elastic substrate layer; the induction electrode layer comprises at least two mutually independent inductor electrodes 21; the driving electrode layer comprises at least two mutually independent driving sub-electrodes 31, the inductor sub-electrodes 21 and the driving sub-electrodes 31 are metal grids, and metal wires in the metal grids are wavy; the driving sub-electrode 31 and the sensor sub-electrode 21 intersect in the orthogonal projection of the surface of the elastic substrate layer, so that a plurality of sensing capacitor units 100 are formed among the driving electrode layer, the elastic substrate layer and the sensing electrode layer. The elastic substrate layer illustrated in fig. 1 includes a first elastic substrate 11 and a second elastic substrate 12 stacked and connected to each other, the first surfaces of the first elastic substrate 11 and the second elastic substrate 12 may be a plane, the sensor electrode 21 is disposed on the surface of the first elastic substrate 11 away from the second elastic substrate 12, the sensor electrode 21 is wavy, and an orthographic projection diagram of the sensor electrode 21 on the surface of the first elastic substrate 11 is illustrated in fig. 2. The driving sub-electrode 31 is disposed on the surface of the second flexible substrate 12 close to the first flexible substrate 11, the driving sub-electrode 31 is wavy, and the front projection of the driving sub-electrode 31 on the surface of the second flexible substrate 12 is shown in fig. 3. In this embodiment, the first elastic substrate 11 and the second elastic substrate 12 are bonded by the first optical adhesive 51. The first optical adhesive 51 is preferably a transparent insulating adhesive. By disposing the sensor electrode 21 and the driving electrode 31 on the first surfaces of the first elastic substrate 11 and the second elastic substrate 12, respectively, the sensor electrode 21 and the driving electrode 31 can be stretched with the stretching of the first elastic substrate 11 and the second elastic substrate 12, respectively, thereby allowing the sensor electrode 21 and the driving electrode 31 to have excellent stretchability.

Further, in the touch sensing module as shown in fig. 1, an elastic protection cover plate 40 is further disposed on a surface of the first elastic substrate 11 away from the second elastic substrate 12, the surface of the elastic protection cover plate 40 close to the first elastic substrate 11 and the surface of the first elastic substrate 11 away from the second elastic substrate 12 may be connected by a second optical adhesive 52, and the second optical adhesive 52 is preferably a transparent insulating adhesive, so that the transparent insulating adhesive covers an outer side of the sensor electrode 21, and plays a good role in transparent insulation of the sensor electrode 21. Adopt the form that the optical cement bonded can avoid reducing the light transmittance of touch-control response module because of using the viscose, make elasticity protection apron and elasticity substrate layer zonulae occludens simultaneously, increased the steadiness of touch-control response module.

Further, in the touch sensing module of the above embodiment, the touch sensing module further includes a circuit protection layer (not shown) disposed outside the sensor sub-electrode 21 and/or the driving sub-electrode 31, and the circuit protection layer is preferably disposed as a transparent insulating layer to perform an insulating protection function on the metal grids in the sensor sub-electrode 21 and/or the driving sub-electrode 31 and avoid mutual interference between the metal grids. In the present embodiment, the thickness of the circuit protection layer may be 0.5um to 5 um.

Further, in the touch sensing module described in the above embodiments, in view of the visible light transmittance, the aperture ratio of the metal mesh pattern formed by the metal wires is preferably 80% or more, more preferably 90% or more, and further preferably 95% or more, and the light transmittance of the metal mesh is greater than or equal to 80%. The aperture ratio corresponds to the ratio of the area on the elastic base material excluding the area where the metal wire is located in the entire area. The metal wire contains a conductive component. The shape of the conductive component is not particularly limited, and the conductive material may be at least one of gold, silver, copper, carbon, indium tin oxide, or graphene. The metal wires in the metal grids are in the form of metal thin wires with excellent conductivity, so that the conductivity of the metal grids is improved, and the touch sensing sensitivity of the touch sensing module is further improved. The distance between the farthest two points of the driving sub-electrode and the inductor sub-electrode along the cross section perpendicular to the central axis direction is 50-200 μm. Through the design of the distance range of the two farthest points on the cross section of the driving sub-electrode and the cross section of the inductor electrode, the driving sub-electrode and the inductor electrode have excellent conductive performance, and meanwhile the difficulty of reducing the overall thickness of the touch induction module is reduced. The distance between the two farthest points of the metal wire along the cross section perpendicular to the central axis is 0.5 μm to 5 μm. The range of the distance of two furthest points on the cross section of the metal wire through design among the metal mesh makes when the metal mesh has good electric conductivity, reduced the degree of difficulty that reduces touch-control response module whole thickness.

Further, in the touch sensing module described in the above embodiments, the driving sub-electrodes 31 and/or the sensing sub-electrodes 21 are distributed in an array. By arranging the driving sub-electrodes 31 and/or the sensing sub-electrodes 21 in an array distribution, a plurality of sensing capacitor units 100 formed between the driving sub-electrodes 31 and the sensing sub-electrodes 21 are distributed in an array distribution, so as to establish a position relation data table of the sensing capacitor units in the touch sensing module, and by respectively connecting each driving sub-electrode 31 and each sensing sub-electrode 21 with a controller (not shown), the controller is convenient to determine the position and/or pressure of touch based on the acquired capacitance variation, and the complexity of calculating the touch position information applied to the touch sensing module is reduced. The elastic substrate layer may be made of at least one of Polyethylene terephthalate (PET), Polycarbonate (PC), Polyimide (PI), and Cyclic Olefin Polymer (COP).

As shown in fig. 4, a touch sensing module provided in an embodiment of the present application includes an elastic substrate layer, and a sensing electrode layer and a driving electrode layer disposed on the elastic substrate layer; the induction electrode layer comprises at least two mutually independent inductor electrodes 21; the driving electrode layer comprises at least two mutually independent driving sub-electrodes 31, the inductor sub-electrodes 21 and the driving sub-electrodes 31 are metal grids, and metal wires in the metal grids are wavy; the driving sub-electrode 31 and the sensor sub-electrode 21 intersect in the orthogonal projection of the surface of the elastic substrate layer, so that a plurality of sensing capacitor units 100 are formed among the driving electrode layer, the elastic substrate layer and the sensing electrode layer. The surface of the first elastic substrate 11 away from the second elastic substrate 12 is provided with a plurality of first grooves 211, the metal wires of the sensor electrodes 21 are filled in the first grooves 211, the surface of the second elastic substrate 12 close to the first elastic substrate 11 is provided with a plurality of second grooves 311, and the metal wires of the driving sub-electrodes 31 are filled in the second grooves 311. The inductor electrode 21 is positioned inside the first groove 211, so that the inductor electrode 21 is insulated and protected by the first elastic substrate 11, and has excellent tensile property; the driving sub-electrode 31 is located inside the second recess 311, so that the driving sub-electrode 31 has excellent tensile properties while the second elastic substrate 12 provides insulation protection for the driving sub-electrode 31.

Further, as shown in fig. 5, a touch sensing module provided in an embodiment of the present application includes an elastic substrate layer, and a sensing electrode layer and a driving electrode layer disposed on the elastic substrate layer; the induction electrode layer comprises at least two mutually independent inductor electrodes 21; the driving electrode layer comprises at least two mutually independent driving sub-electrodes 31, the inductor sub-electrodes 21 and the driving sub-electrodes 31 are metal grids, and metal wires in the metal grids are wavy; the driving sub-electrode 31 and the sensing sub-electrode 21 intersect in the orthogonal projection on the surface of the elastic substrate layer 10, so that a plurality of sensing capacitor units 100 are formed among the driving electrode layer, the elastic substrate layer 10 and the sensing electrode layer. A plurality of third grooves 212 are formed in the first surface of the elastic substrate layer 10, the metal wires of the sensor sub-electrodes 21 are filled in the third grooves 212, a plurality of fourth grooves 312 are formed in the second surface of the elastic substrate layer 10 opposite to the first surface, and the metal wires of the driving sub-electrodes 31 are filled in the fourth grooves 312. The inductor electrode 21 is positioned in the third groove 212, so that the inductor electrode 21 has excellent tensile property while the elastic substrate layer 10 plays an insulating protection role on the inductor electrode 21; the metal wire of the driving sub-electrode 31 is filled in the fourth groove 312, so that the elastic substrate layer 10 plays an insulating protection role for the driving sub-electrode 31, and the driving sub-electrode 31 has excellent stretching performance.

Further, as shown in fig. 6, in a touch sensing module provided in an embodiment of the present application, the touch sensing module is different from the touch sensing module illustrated in fig. 5 in that a first surface of the elastic substrate layer 10 and a second surface opposite to the first surface are planar, the sensor sub-electrode 21 is located on the first surface of the elastic substrate layer 10, and the driving sub-electrode 31 is located on the second surface of the elastic substrate layer 10, so that the sensor sub-electrode 21 and the driving sub-electrode 31 can be stretched along with the stretching of the elastic substrate layer 10, and thus the sensor sub-electrode 21 and the driving sub-electrode 31 have excellent stretching performance. Because only one elastic substrate layer is arranged between the sensing electrode layer and the driving electrode layer, the product thickness of the touch sensing module is effectively reduced.

Further, in the touch sensing module in the above embodiment, the touch sensing module further includes an elastic protection cover plate 40 stacked on the elastic substrate layer 10, the surface of the elastic protection cover plate 40 close to the elastic substrate layer 10 and the surface of the elastic substrate layer 10 close to the protection cover plate 40 may be connected by a second optical adhesive 52, and the second optical adhesive 52 is preferably a transparent insulating adhesive, so that the transparent insulating adhesive covers the outer side of the sensor electrode 21, and the sensor electrode 21 is well transparent and insulated. Adopt the form that the optical cement bonded can avoid reducing the light transmittance of touch-control response module because of using the viscose, make elasticity protection apron and elasticity substrate layer zonulae occludens simultaneously, increased the steadiness of touch-control response module.

Further, in an embodiment of the present application, the touch sensing module further includes a plurality of first signal lines disposed on a first surface of the elastic substrate layer and/or a second surface opposite to the first surface, and configured to input or output signals to the sensing capacitor unit, where the first signal lines are wavy.

Specifically, in the touch sensing module in the above embodiment, the first surface and/or the second surface of the elastic substrate layer may be a plane, and the first signal line is located on the first surface of the elastic substrate layer. In other embodiments of the present application, the first signal lines may be disposed on the second surface of the elastic substrate layer, or the first signal lines may be disposed on the first surface and the second surface of the elastic substrate layer simultaneously.

Specifically, in the touch sensing module in the above embodiment, a plurality of fifth grooves may be respectively disposed on the first surface and the second surface of the elastic substrate layer, and the first signal line is disposed in the fifth grooves. The elastic substrate layer has a good insulation protection effect on the first signal line, and meanwhile, the first signal line can stretch along with the stretching of the elastic substrate layer, so that the first signal line has excellent stretching performance. Preferably, the first signal lines may be disposed to be uniformly arranged in a direction perpendicular to a central axis thereof. The first signal wires are conveniently distributed on the first surface of the elastic base material layer or the second surface opposite to the first surface, the wiring complexity is reduced, and meanwhile the attractiveness of the wiring is improved.

Further, in the touch sensing module in the above embodiment, the touch sensing module further includes a plurality of second signal lines (not shown) disposed at an edge of the elastic substrate layer, and configured to input or output signals to or from the driving electrode layer and the sensing electrode layer, the second signal lines are metal grids, and the metal lines in the metal grids are wavy.

Further, in the touch sensing module in the above embodiment, a first surface of the elastic substrate layer and/or a second surface opposite to the first surface are/is a plane, and the second signal line is located on the first surface and/or the second surface of the elastic substrate layer.

Further, in the touch sensing module of the above embodiment, a maximum diameter of a cross section of the second signal line along a direction perpendicular to a central axis thereof is less than or equal to 40 μm. Through the design the range of the maximum diameter of the cross section of the second signal line makes the second signal line has good conductivity and simultaneously reduces the difficulty of reducing the whole thickness of the touch sensing module. The distance between the adjacent second signal lines is less than or equal to 40 μm. Through the restriction adjacent distance between the second signal line to reduce the volume that the second signal line occupied space, reduced the degree of difficulty that reduces the whole volume of touch-control response module. The maximum diameter of a cross section of the metal line in the second signal line in a direction perpendicular to the central axis thereof is 0.5 μm to 3.5 μm. Through the range of the maximum diameter of the cross section of the metal wire in the second signal wire, the second signal wire has excellent electric conductivity, and the difficulty of reducing the whole thickness of the touch sensing module is reduced. The distance between adjacent metal lines in the metal mesh in the second signal line is less than or equal to 8 μm. Through limiting the distance between the adjacent metal wires in the metal grids in the second signal wire, the size of the metal grids in the second signal wire is reduced, and the difficulty of reducing the whole size of the touch sensing module is reduced. The material of the metal wire in the second signal wire is at least one of gold, silver, copper, carbon, indium tin oxide or graphene. The metal wires in the metal grids in the second signal wire are in the form of metal thin wires with excellent conductivity, so that the conductivity of the second signal wire is improved, and the touch sensing sensitivity of the touch sensing module is further improved.

As shown in fig. 7, an electronic device provided in an embodiment of the present application includes a touch sensing module and a controller according to any one of the embodiments of the present application. The touch sensing module comprises an elastic substrate layer, a driving electrode layer and a sensing electrode layer, wherein the driving electrode layer and the sensing electrode layer are arranged on the elastic substrate layer; the driving electrode layer comprises at least two mutually independent driving sub-electrodes, and the induction electrode layer comprises at least two mutually independent induction sub-electrodes; the driving sub-electrode and the inductor electrode are metal grids, and metal wires in the metal grids are wavy; the driving sub-electrodes and the sensing sub-electrodes are crossed in the orthographic projection of the surface of the elastic base material layer, so that a plurality of sensing capacitor units 100 are formed among the driving electrode layer, the elastic base material layer and the sensing electrode layer. The touch sensing module is used for detecting the capacitance variation of the sensing capacitance unit based on touch applied to the touch sensing module; the controller is connected to each of the driving sub-electrodes and the sensing sub-electrodes, and is configured to obtain the touch position based on a capacitance variation of the sensing capacitor unit 100.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

In an embodiment of this application, the electronic device that provides can be smart watch, cell-phone camera, panel computer camera, intelligent wearing equipment, electronic album or electron skin etc. adopt the electronic device of touch-control response module in this application embodiment, but its touch-control response part has tensile performance.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (23)

1. A touch control induction module is characterized by comprising an elastic substrate layer, a driving electrode layer and an induction electrode layer, wherein the driving electrode layer and the induction electrode layer are arranged on the elastic substrate layer;

the driving electrode layer comprises a plurality of mutually independent driving sub-electrodes, and the induction electrode layer comprises a plurality of mutually independent induction sub-electrodes;

the driving sub-electrode and the inductor electrode are metal grids, and metal wires in the metal grids are wavy; the driving sub-electrodes and the induction sub-electrodes are crossed in the orthographic projection of the surface of the elastic base material layer, so that the driving electrode layer, the elastic base material layer and the induction electrode layer form a plurality of induction capacitance units together.

2. The touch sensing module of claim 1, wherein the elastic substrate layer comprises a first elastic substrate and a second elastic substrate that are laminated;

the induction electrode layer is arranged on the surface of the first elastic substrate far away from the second elastic substrate;

the driving electrode layer is arranged on the surface, close to the first elastic substrate, of the second elastic substrate;

the surface of the driving electrode layer close to the first elastic substrate is connected with the surface of the first elastic substrate close to the driving electrode layer in an overlapped mode.

3. The touch sensing module of claim 2, wherein:

a plurality of first grooves are formed in the surface, far away from the second elastic substrate, of the first elastic substrate, metal wires of the inductor electrodes are filled in the first grooves, a plurality of second grooves are formed in the surface, close to the first elastic substrate, of the second elastic substrate, and metal wires of the driving sub-electrodes are filled in the second grooves; or

The metal wires of the inductor electrodes are filled on the surface of the first elastic substrate far away from the second elastic substrate, and the metal wires of the driving sub-electrodes are filled on the surface of the second elastic substrate near the first elastic substrate.

4. The touch sensing module of claim 1, wherein:

the elastic substrate layer comprises a first surface and a second surface which are opposite, the first surface is provided with a plurality of third grooves, the metal wires of the inductive sub-electrodes are filled in the third grooves, the second surface is provided with a plurality of fourth grooves, and the metal wires of the driving sub-electrodes are filled in the fourth grooves; or

The inductor electrode is located on the first surface, and the driving sub-electrode is located on the second surface.

5. The touch sensing module according to any one of claims 1 to 4, further comprising a circuit protection layer disposed outside the sensor sub-electrode and/or the driving sub-electrode; the circuit protection layer is a transparent insulating layer.

6. The touch sensing module of claim 5, wherein the thickness of the circuit protection layer is 0.5um-5 um.

7. The touch sensing module according to any one of claims 1 to 4, further comprising a protective cover laminated to the elastic substrate layer, wherein the surface of the elastic protective cover adjacent to the elastic substrate layer is connected to the surface of the sensor electrode adjacent to the elastic protective cover in an overlapping manner;

the elastic protective cover plate is transparent and insulating.

8. The touch sensing module according to any one of claims 1-4, wherein the driving sub-electrode and the sensor sub-electrode are made of at least one of gold, silver, copper, carbon, indium tin oxide, or graphene.

9. The touch sensing module according to any one of claims 1 to 4, wherein the distance between the two farthest points of the driving sub-electrode and the sensing sub-electrode along the cross section perpendicular to the surface of the elastic substrate layer is 50 μm to 200 μm.

10. The touch sense module according to any one of claims 1-4, wherein the distance between the two farthest points of the metal line along a cross section perpendicular to the central axis of the metal line is 0.5 μm-5 μm.

11. The touch sense module of any one of claims 1-4, wherein the metal mesh has an aperture ratio of greater than or equal to 80%.

12. The touch sense module of any of claims 1-4, wherein the metal mesh has a light transmittance of greater than or equal to 80%.

13. The touch sensing module according to any one of claims 1-4, wherein the driving sub-electrodes and/or the sensing sub-electrodes are uniformly arranged along a predetermined direction, respectively.

14. The touch sensing module according to any one of claims 1 to 4, further comprising a plurality of first signal lines disposed on a first surface of the elastic substrate layer and/or a second surface opposite to the first surface, for inputting or outputting signals to or from the sensing capacitor unit, wherein the first signal lines are wavy.

15. The touch sensing module according to claim 14, wherein the first surface and/or the second surface of the elastic substrate layer are respectively provided with a plurality of fifth grooves, and the first signal line is located in the fifth grooves; or

The first signal line is located on the first surface and/or the second surface of the elastic base material layer.

16. The touch sensing module according to any one of claims 1 to 4, further comprising a plurality of second signal lines disposed at an edge of the elastic substrate layer, for inputting or outputting signals to or from the driving electrode layer and the sensing electrode layer, wherein the second signal lines are metal grids, and the metal lines in the metal grids are wavy.

17. The touch sensing module according to claim 16, wherein a plurality of sixth grooves are respectively formed in the first surface of the elastic substrate layer and/or the second surface opposite to the first surface, and the second signal line is located in the sixth grooves; or

The second signal line is located on the first surface and/or the second surface of the elastic base material layer.

18. The touch sensing module of claim 17, wherein the distance between the two farthest points of the second signal line along the cross section perpendicular to the first surface is less than or equal to 40 μm.

19. The touch sensing module of claim 16, wherein the distance between the two farthest points of the metal line along a cross section perpendicular to the central axis of the metal line is 0.5 μm to 3.5 μm.

20. The touch sensing module of claim 16, wherein a distance between adjacent metal lines in the metal mesh is less than or equal to 8 μm.

21. The touch sensing module of claim 16, wherein the metal wire is made of at least one of gold, silver, copper, carbon, indium tin oxide, and graphene.

22. A touch panel, comprising:

the touch sensing module of any one of claims 1-21, configured to detect a capacitance variation of the sense capacitive unit based on a touch applied to the touch sensing module; and

and the controller is respectively connected with the driving sub-electrode and the induction sub-electrode and is used for acquiring the touch position based on the capacitance variation.

23. An electronic device, comprising:

the touch sensing module of any one of claims 1-21, configured to detect a capacitance variation of the sense capacitive unit based on a touch applied to the touch sensing module; and

and the controller is respectively connected with the driving sub-electrode and the induction sub-electrode and is used for acquiring the touch position based on the capacitance variation.

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