Touch communication sensor, touch screen and interactive control method

Abstract

The application relates to a touch communication sensor, a touch screen and an interactive control method. The touch communication sensor comprises an electrode module and a driving module. The electrode module comprises a first electrode layer and a second electrode layer. The first electrode layer comprises a plurality of first electrodes arranged in sequence along a first direction, and the second electrode layer comprises a plurality of second electrodes arranged in sequence along a second direction. The first electrodes and the second electrodes are electrically connected to the driving module through a plurality of lead wires. In a communication stage, the plurality of first electrodes are sequentially connected in series through the plurality of lead wires and the driving module to form a coil loop for communication transmission. In a touch stage, the first electrodes and the second electrodes are arranged to be mutually isolated through the driving module to form a touch matrix for touch sensing. The touch communication sensor in the application is beneficial to the integration of communication and touch functions, and is beneficial to the thinning and narrow-framing of the touch communication sensor.

Description

Technical Field

[0001] This application relates to the technical field of communication and touch compatibility, and in particular to touch communication sensors, touch screens and interactive control methods. Background Technology

[0002] In electronic devices, near-field communication antennas (such as NFC) and touch sensors are generally two independent functional components. For example, in mobile phones and touchscreens, the touch sensor is located on the front of the phone, i.e., the front of the display device, while the communication antenna is located on the back of the phone, and their functions are also independent. In the field of touch technology, touch sensors generally achieve touch functionality through channel electrodes arranged in a crisscross pattern. The channel electrodes can be in the form of ITO, MetalMesh, silver nanowires, carbon nanotubes, graphene, etc.

[0003] In related technologies, communication antennas, such as NFC antennas, are mostly placed around, on one side, or on multiple sides of the touch sensor to integrate the communication antenna. However, this arrangement has the following drawbacks: It requires additional space on the side of the touch sensor to integrate the communication antenna, which increases the overall spatial layout of the device, further widening the bezel area and hindering the narrow bezel design of electronic devices, thus affecting the overall aesthetics. Simultaneously, the fixed position of the communication antenna limits its communication area, making communication connections difficult and prone to instability and interruptions. Summary of the Invention

[0004] Therefore, it is necessary to provide a touch communication sensor, touch screen, and interactive control method to address the problem of limited overall space layout of devices when integrating touch sensors and communication antennas.

[0005] According to a first aspect of this application, a touch communication sensor is provided, comprising:

[0006] An electrode module includes a first electrode layer and a second electrode layer; the first electrode layer includes a plurality of first electrodes arranged sequentially along a first direction, and the second electrode layer includes a plurality of second electrodes arranged sequentially along a second direction; the first electrode layer and the second electrode layer are insulated from each other; the first direction and the second direction are intersecting each other.

[0007] The driving module is provided, wherein the first electrode and the second electrode are electrically connected to the driving module via several leads. The driving module is used to drive the electrode module to perform communication transmission during the communication phase and to drive the electrode module to perform touch sensing during the touch phase.

[0008] In the communication phase, multiple first electrodes are connected in series via several leads through the driving module to form a coil circuit for communication transmission; in the touch phase, the first electrodes and the second electrodes are isolated from each other through the driving module to form a touch matrix for touch sensing.

[0009] In one embodiment, the driving module includes a first module and a second module, the first module and the second module are respectively disposed at two opposite ends of the first electrode, the first module is electrically connected to one end of the first electrode and one end or both ends of the second electrode via a plurality of leads, the second module is electrically connected to the other end of the first electrode via a plurality of leads, and the first module and the second module are signal connected.

[0010] During the communication phase, multiple first electrodes are connected in series through the first module and the second module to form the coil circuit; during the touch phase, multiple first electrodes are isolated from each other through the first module and the second module, and multiple second electrodes are isolated from each other through the first module to form the touch matrix.

[0011] In one embodiment, the coil circuit includes at least two first electrodes, wherein, during the communication phase, along the loop direction of the coil circuit, one end of the plurality of first electrodes disposed on the same side is sequentially connected in pairs via the first module, and the other end of the plurality of first electrodes disposed on the same side is sequentially connected in pairs via the second module.

[0012] In one embodiment, the first electrode is provided with a first end and a second end opposite to each other along the second direction;

[0013] N first electrodes form the coil circuit, and the N first electrodes are arranged sequentially along the first direction; in the coil circuit, the second end corresponding to the Ath first electrode and the second end corresponding to the Bth first electrode are electrically connected via the second module, the first end corresponding to the Cth first electrode and the first end corresponding to the Dth first electrode are electrically connected via the first module, the first end corresponding to the 1st first electrode and the first end corresponding to the Pth first electrode are respectively the input end and the output end of the coil circuit, and are electrically connected to the first module, where A+B=N+1, C+D=N+2, P=(N+2) / 2, and N≥4, N=2k, k and P are both positive integers.

[0014] In one embodiment, the first electrode includes two sub-electrodes, each sub-electrode having a first end and a second end; within the first electrode, the two second ends of the two sub-electrodes are interconnected and electrically connected to the second module, and the two first ends of the two sub-electrodes are spaced apart and electrically connected to the first module; the two sub-electrodes in the same first electrode are connected in parallel to the second module through their second ends;

[0015] During the communication phase, two sub-electrodes of the same first electrode are connected in parallel via the first module, and multiple first electrodes are connected in series via the first module and the second module to form the coil circuit; during the touch phase, the first ends of two sub-electrodes of the same first electrode are isolated from each other via the first module, multiple first electrodes are isolated from each other via the first module and the second module, and multiple second electrodes are isolated from each other via the first module to form the touch matrix for electromagnetic touch and / or capacitive touch.

[0016] In one embodiment, the first module is an integrated module, and the second module is a switching circuit module. The integrated module includes a touch unit and a communication unit. During the communication phase, multiple first electrodes are connected in series through the communication unit and the switching circuit module to form the coil circuit. During the touch phase, multiple first electrodes are isolated from each other through the touch unit and the switching circuit module, and multiple second electrodes are isolated from each other through the touch unit to form the touch matrix.

[0017] Alternatively, the first module is a touch driving module, and the second module is a communication driving module; in the communication phase, multiple first electrodes are connected in series through the touch driving module and the communication driving module to form the coil circuit; in the touch phase, the first electrodes are isolated from each other through the touch driving module and the communication driving module, and the second electrodes are isolated from each other through the touch driving module to form the touch matrix.

[0018] In one embodiment, the communication area covered by the coil circuit is configured by a plurality of regions corresponding to the first electrodes that are connected in series in sequence.

[0019] In one embodiment, during the communication phase, at least two of the first electrodes are connected in parallel via the driving module to form parallel electrodes; a plurality of the parallel electrodes are connected in series via the driving module to form the coil circuit.

[0020] In one embodiment, the plurality of first electrodes include a loop electrode and a spacer electrode; in the coil loop, the loop electrode is the first electrode that is connected in series via the driving module; the spacer electrode is the first electrode that is suspended or grounded via the driving module; at least one spacer electrode is spaced between two adjacent loop electrodes.

[0021] In one embodiment, during the communication phase, the second electrode is either suspended or grounded via the driving module.

[0022] In one embodiment, the number of coil circuits is set to multiple, and the multiple coil circuits are arranged sequentially at intervals along the first direction.

[0023] According to a second aspect of this application, a touch screen is provided, including a screen body and a touch communication sensor as described in the above embodiments, wherein the touch communication sensor is mounted on the surface of the screen body; the first electrode layer, the second electrode layer, and the screen body are sequentially stacked along the thickness direction of the screen body.

[0024] According to a third aspect of this application, an interactive control method is provided, characterized in that it is applied to the touch communication sensor in the above embodiments; the interactive control method includes:

[0025] In response to a communication signal, according to a set communication area, multiple first electrodes in the corresponding area are connected in series via the driving module to form a coil circuit for communication transmission;

[0026] In response to a touch signal, the first electrode and the second electrode are isolated from each other by the driving module to form a touch matrix for touch sensing.

[0027] In one embodiment, the interactive control method further includes:

[0028] The communication area is determined according to the set communication mode:

[0029] If the communication mode is static, the communication area is set to a fixed area defined by the system; if the communication mode is dynamic, the communication area is set to a variable area defined by the system.

[0030] The variable area set by the system can be either user-defined or automatically identified by the system.

[0031] In one embodiment, the interactive control method further includes:

[0032] In response to the application scenario signal, the application scenario area is obtained based on the application scenario signal, and the communication area is set as the application scenario area.

[0033] In one embodiment, the interactive control method further includes:

[0034] During communication transmission, signal parameters are acquired, and the number of the first electrodes participating in forming the coil circuit and / or the distribution position of the first electrodes participating in forming the coil circuit are dynamically adjusted according to the signal parameters, so as to adjust the signal strength and / or communication area of ​​the communication transmission.

[0035] In one embodiment, dynamically adjusting the number of the first electrodes participating in forming the coil circuit and / or adjusting the distribution position of the first electrodes participating in forming the coil circuit according to the signal parameters includes:

[0036] When the signal parameter is lower than a preset threshold, the number of the first electrodes participating in forming the coil circuit is increased, or the boundary region formed by the first electrodes participating in forming the coil circuit is expanded, or the position of the region formed by the first electrodes participating in forming the coil circuit is moved, until the signal parameter meets the preset threshold.

[0037] The aforementioned touch communication sensor, touch screen, and interactive control method enable the following: During the communication phase, the driving module connects multiple first electrodes arranged along a first direction in series via leads to form a continuous coil circuit. This continuous coil circuit can excite antenna signals when powered, serving as a communication area (such as magnetic coupling or inductive communication) to achieve signal transmission and reception, thus realizing the communication function.

[0038] During the touch control phase, the driving module isolates the first electrode from the second electrode, thus maintaining electrical isolation between them and forming a mutual capacitance touch matrix composed of the first electrode in the first direction and the second electrode in the second direction. By scanning the capacitance changes between each electrode node, multi-point touch position detection is achieved, realizing the touch function.

[0039] Thus, communication and touch functions can be achieved by sharing the first electrode and wiring during the communication and touch phases, eliminating the need for separate touch and antenna layers and avoiding film layer stacking. This, in turn, helps reduce the thickness of the touch communication sensor and facilitates the thinning of electronic devices.

[0040] Furthermore, during the communication phase, the first electrode is connected in series with the driving module to form a coil loop. This reduces the lead length between the driving module and the first electrode, and eliminates the need for additional independent power supply traces for the antenna function, thereby reducing the number of traces within the bezel. Simultaneously, the shared design of the coil loop and the electrode layer avoids the need for separate coil loops on the outside of the electrode layer. This helps reduce the number of antenna leads around the electrode layer, which in turn helps reduce the width of the touch communication sensor, ultimately contributing to the narrow bezel performance of the electronic device.

[0041] The communication antenna is formed by a coil circuit based on the first electrodes connected in series. The size and location of this communication antenna area are determined by the areas corresponding to the sequentially connected first electrodes. By configuring the number and / or areas of the first electrodes in the coil circuit, the communication area and performance of the antenna can be flexibly configured. This is particularly beneficial in near-field communication applications, where antenna communication is no longer limited to a fixed location and can be flexibly adjusted according to actual needs, making it more convenient and user-friendly. Furthermore, since touch sensors are typically laid out across the entire surface of a screen or other carrier, integrating the communication antenna and touch sensor into one unit enables ultra-wide-range, flexible, and precise communication transmission. For example, the NFC antenna on a mobile phone can achieve communication transmission regardless of its placement, eliminating the need for precise alignment and greatly improving ease of use and reliability. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of a touch communication sensor shown in one embodiment.

[0043] Figure 2 This is a schematic diagram of the coil circuit of a touch communication sensor shown in one embodiment.

[0044] Figure 3 This is a schematic diagram of the cooperative structure of the first module and the second module in a touch communication sensor shown in one embodiment.

[0045] Figure 4 This is a schematic diagram of the cooperative structure of the first module and the second module in a touch communication sensor shown in another embodiment.

[0046] Figure 5 This is a schematic diagram of the structure of a touch communication sensor shown in another embodiment.

[0047] Figure 6 for Figure 5 The diagram shows the electrical connection structure of the touch communication sensor during the communication phase.

[0048] Figure 7 for Figure 5 The diagram shows the electrical connection structure of the touch communication sensor during the touch phase.

[0049] Figure 8 This is a schematic diagram of the structure of the touch communication sensor shown in other embodiments.

[0050] Figure 9 This is a schematic diagram of the structure of a touch communication sensor shown in another embodiment.

[0051] Figure 10 This is a schematic diagram illustrating different switching scenarios of the coil circuit in a touch communication sensor in one embodiment.

[0052] Figure 11 This is a flowchart illustrating an interactive control method in one embodiment.

[0053] Figure 12 This is a flowchart illustrating the method for determining the communication area in an interactive control method shown in one embodiment.

[0054] Figure 13 This is a flowchart illustrating the interactive control method in another embodiment.

[0055] Figure 14 This is a schematic diagram illustrating different switching scenarios of the coil circuit in a touch communication sensor in one embodiment.

[0056] Figure 15 for Figure 14 The diagram shows a detailed process flow for step S400.

[0057] Explanation of reference numerals in the attached figures:

[0058] 10. Touchscreen; 100. Touch communication sensor; 101. Coil circuit; 110. Electrode module; 111. First electrode layer; 1111. First electrode; 1111a. First end; 1111b. Second end; 1111c. Sub-electrode; 1112. Circuit electrode; 1113. Spacing electrode; 112. Second electrode layer; 1121. Second electrode; 120. Driving module; 121. First module; 1211. Integrated module; 1212. Touch driving module; 122. Second module; 1221. Switching circuit module; 1222. Communication driving module; 130. Lead wire; 140. Control bus; X. First direction; Y. Second direction; Z. Thickness direction. Detailed Implementation

[0059] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0060] One aspect of this application is referenced in [reference]. Figure 1 and Figure 2 As shown, a touch communication sensor 100 is provided, including an electrode module 110 and a driving module 120.

[0061] Electrode module 110 includes a first electrode layer 111 and a second electrode layer 112. The first electrode layer 111 includes a plurality of first electrodes 1111 arranged sequentially along a first direction X, and the second electrode layer 112 includes a plurality of second electrodes 1121 arranged sequentially along a second direction Y. The first electrode layer 111 and the second electrode layer 112 are insulated from each other. The first direction X and the second direction Y are intersecting each other.

[0062] The first electrode 1111 and the second electrode 1121 are both electrically connected to the driving module 120 via several leads 130. The driving module 120 is used to drive the electrode module 110 to perform communication transmission during the communication phase and to drive the electrode module 110 to perform touch sensing during the touch phase.

[0063] Electrode module 110 can be in the form of a conductive film, conductive plate, etc., wherein electrodes made of materials such as ITO, MetalMesh, silver nanowires, carbon nanotubes, graphene, etc., are formed on a flexible substrate, glass substrate, etc., to form electrode module 110. Corresponding leads can be made of the same material as the electrodes and are also formed on the substrate, forming an integral structure with the electrodes. Driving module 120 can be several driving circuit boards, on which driving chips and / or driving circuits required for communication and touch control are disposed. Driving module 120 and leads 130 can be directly interconnected or interconnected via flexible connectors such as FPC.

[0064] In the communication phase, multiple first electrodes 1111 are connected in series via several leads 130 through a driving module 120 to form a coil circuit 101 for communication transmission. In the touch phase, the first electrodes 1111 and the second electrodes 1121 are isolated from each other via the driving module 120 to form a touch matrix for touch sensing.

[0065] Understandably, during the communication phase, the drive module 120 connects multiple first electrodes 1111 arranged along the first direction X in series via leads 130 to form a continuous coil loop 101. This continuous coil loop 101 can excite antenna signals when powered, serving as a region for near-field communication (such as magnetic coupling or inductive communication), enabling signal transmission and reception, and thus realizing the communication function.

[0066] During the touch control phase, the driving module 120 isolates the first electrode 1111 and the second electrode 1121 from each other, thus maintaining electrical isolation between them and forming a mutual capacitance touch matrix composed of the first electrode 1111 in the first direction X and the second electrode 1121 in the second direction Y. By scanning the capacitance changes between each electrode node, multi-point touch position detection is achieved, realizing the touch function.

[0067] Thus, in the communication and touch stages, communication and touch functions can be achieved by sharing the first electrode 1111 and the wiring, without the need for additional independent touch and antenna layers, avoiding film layer stacking, which in turn helps to reduce the thickness of the touch communication sensor 100 and facilitates the thinning of electronic devices.

[0068] Furthermore, during the communication phase, the first electrode 1111 is connected in series with the driving module 120 to form a coil loop 101. This reduces the length of the lead 130 between the driving module 120 and the first electrode 1111, and eliminates the need for additional independent power supply traces for the antenna function, thereby reducing the number of traces within the frame. Simultaneously, the coil loop 101 shares a design with the electrode layer, avoiding the need for a separate coil loop 101 on the outside of the electrode layer. This helps reduce the number of antenna leads 130 on the periphery of the electrode layer, which in turn helps reduce the width of the touch communication sensor 100, thus contributing to the narrow bezel performance of the electronic device.

[0069] The coil circuit 101 formed by the series connection of the first electrodes 1111 constitutes a communication antenna. The size and location of the communication antenna area are determined by the areas corresponding to the sequentially connected first electrodes 1111. By configuring the number and / or areas of the first electrodes 1111 in the coil circuit 101, the communication area and antenna performance of the communication antenna can be flexibly configured. Especially in near-field communication applications, antenna communication is no longer limited to a fixed location and can be flexibly adjusted according to actual needs, making it more convenient and easy to use. Furthermore, since the touch sensor 100 is generally laid out on the screen or other carrier, integrating the communication antenna and the touch sensor into one unit enables ultra-wide-range, flexible, and precise communication transmission. For example, the NFC antenna on a mobile phone can achieve communication transmission regardless of how it is placed, eliminating the need for precise alignment and greatly improving the convenience and reliability of use.

[0070] The first electrode 1111 and the second electrode 1121 can be channel electrodes, etc.

[0071] In one example, the first direction X and the second direction Y are set perpendicularly. Thus, during the touch phase, the first direction X and the second direction Y are perpendicular, causing the driving lines (Tx) and sensing lines (Rx) in the touch matrix to be orthogonally arranged. The horizontal and vertical coordinates of the touch point can be independently detected by the first electrode 1111 and the second electrode 1121, respectively, without coupling, achieving precise two-dimensional positioning. Furthermore, the orthogonal arrangement maximizes the area of ​​the intersection node between the first electrode 1111 and the second electrode 1121 (compared to non-perpendicular intersections, such as acute or obtuse angles). When a finger or stylus approaches, the change in mutual capacitance at the node is maximized, improving the sensitivity of touch detection.

[0072] In some embodiments, such as Figure 3 as well as Figure 4 As shown, the driving module 120 includes a first module 121 and a second module 122, which are respectively located at both ends of the first electrode 1111. The first module 121 is electrically connected to one end of the first electrode 1111 and one or both ends of the second electrode 1121 via several leads, and the second module 122 is electrically connected to the other end of the first electrode 1111 via several leads 130. The first module 121 and the second module 122 are signal connected.

[0073] During the communication phase, multiple first electrodes 1111 are connected in series via first module 121 and second module 122 to form coil circuit 101.

[0074] Specifically, during the communication phase, the drive module 120 controls the two ends of multiple first electrodes 1111 to be connected to the first module 121 and the second module 122 respectively via leads 130, thereby forming a series path of first module 121 -- first electrode 1111 -- second module 122 -- another first electrode 1111 -- first module 121... to form a closed coil loop 101. The current path within the first electrode 1111 can be referenced. Figure 2 The dashed line in the diagram indicates that the current path of the first electrode 1111 within the coil circuit 101 is between the first end 1111a and the second end 1111b. Figure 2The dashed lines in the diagram only indicate the input and output terminals in the current path within the first electrode 1111, and do not limit the actual current path structure within the first electrode 1111. During the communication phase, the closed coil loop 101 can function as a communication antenna (such as a near-field communication antenna), transmitting signals via signal coupling. In this phase, since the two ends of the first electrode 1111 are electrically connected to the first module 121 and the second module 122 respectively, the length of the lead wire 130 can be reduced. The main body of the closed coil loop 101 is located in the area where the first electrode 1111 is situated, reducing the antenna trace range around the electrode layer, achieving a narrow bezel for the touch communication sensor 100, and reducing antenna traces within the electrode layer, which helps reduce design costs.

[0075] During the touch phase, multiple first electrodes 1111 are isolated from each other via first module 121 and second module 122, and multiple second electrodes 1121 are isolated from each other via first module 121 (i.e., not electrically connected), forming a touch matrix.

[0076] Specifically, both ends of the second electrode 1121 are connected to the first module 121 via leads 130, and the first module 121 provides touch driving signals or sensing signals. Both ends of the first electrode 1111 are connected to either the first module 121 or the second module 122 (i.e., the same module controls both ends). Multiple first electrodes 1111 are isolated from each other via the first module 121 or the second module 122, ensuring that each first electrode 1111 is independent and not connected in series, and that the first module 121 or the second module 122 provides touch driving signals or sensing signals.

[0077] Thus, both ends of the first electrode 1111 are connected to the same module (first module 121 or second module 122), and both ends of the second electrode 1121 are connected to the first module 121. This makes it possible for several leads 130 to be led out from both ends of the first electrode 1111 and the second electrode 1121 to the corresponding nearest module, avoiding the leads 130 from bridging to the opposite module. This reduces the crossing length of the traces and the number of interlayer jumpers in the area where the electrode layer is located, which is beneficial to the thinning and miniaturization of the touch communication sensor 100.

[0078] The coil circuit 101 can be formed by a serpentine series path between multiple first electrodes 1111 through leads 130 and a driving module 120, or by a Z-shaped series path between multiple first electrodes 1111 through leads 130 and a driving module 120, etc.

[0079] Alternatively, in one embodiment, such as Figure 3 and Figure 4As shown, the coil circuit 101 includes at least two first electrodes 1111. During the communication phase, along the circuit direction of the coil circuit 101, one end of the plurality of first electrodes 1111 arranged on the same side is connected in pairs via the first module 121, and the other end of the plurality of first electrodes 1111 arranged on the same side is connected in pairs via the second module 122.

[0080] Specifically, during the communication phase, along the current direction of the coil loop 101, one end of each of the plurality of first electrodes 1111 located on the same side (e.g., the upper side in the first direction X) is connected to the first module 121 via a lead 130, and is then connected to one end of another first electrode 1111 within the first module 121 or via a trace in the first module 121, thus achieving a series connection. The other end of each of the plurality of first electrodes 1111 located on the other side (e.g., the lower side in the first direction X) is connected to the second module 122 via a lead 130, and is then connected to the other end of another first electrode 1111 within the second module 122 or via a trace in the second module 122, thus achieving a series connection in pairs. See also Figure 2 From left to right, the first electrode 1111, the second electrode 1111, the third electrode 1111, ..., the Nth electrode 1111 are represented by these electrodes. The complete electrical path formed is: First module 121 -- First electrode 1111 -- Second module 122 -- Nth electrode 1111 -- First module 121 -- Second electrode 1111 -- Second module 122 -- N-1th electrode 1111 -- First module 121..., forming a series loop. This series topology ensures that the coil directions of all first electrodes 1111 involved in communication are consistent, thereby forming a multi-turn coil structure with equal current in the communication area, enhancing magnetic flux and communication coupling capability.

[0081] In this way, by connecting the ends of the first electrodes 1111 on the same side in pairs through the same module, the long-distance traces at both ends of each first electrode 1111 are avoided, the number of trace crossings and jumpers is reduced, the frame area on both sides of the electrode module 110 can be greatly reduced, the narrow frame is effectively achieved, the risk of signal delay is reduced, and the communication signal is enhanced.

[0082] Furthermore, in one embodiment, see back Figure 2 The first electrode 1111 has a first end 1111a and a second end 1111b opposite each other along the second direction Y. N first electrodes 1111 form a coil circuit 101, and the N first electrodes 1111 are arranged sequentially along the first direction X.

[0083] In coil circuit 101, the second terminal 1111b corresponding to the Ath first electrode 1111 and the second terminal 1111b corresponding to the Bth first electrode 1111 are electrically connected via the second module 122. The first terminal 1111a corresponding to the Cth first electrode 1111 and the first terminal 1111a corresponding to the Dth first electrode 1111 are electrically connected via the first module 121. The first terminal 1111a corresponding to the 1st first electrode 1111 and the first terminal 1111a corresponding to the Pth first electrode 1111 are the input and output terminals of coil circuit 101, respectively, and are electrically connected to the first module 121. Wherein, A+B=N+1, C+D=N+2, P=(N+2) / 2, and N≥4, N=2k, where k and P are both positive integers.

[0084] It is understandable that the second end 1111b of the Ath first electrode 1111 and the second end 1111b of the Bth first electrode 1111 are electrically connected via the second module 122, where A+B=N+1. Therefore, it can be deduced that the series connection between multiple second ends 1111b is achieved by sequentially connecting the first first electrode 1111 with the Nth first electrode 1111, the second first electrode 1111 with the (N-1)th first electrode 1111, and so on. This series connection method enables the same-side ends of two first electrodes 1111 located in symmetrical positions (e.g.) to be connected in series within the second module 122.

[0085] The first end 1111a of the Cth first electrode 1111 and the first end 1111a of the Dth first electrode 1111 are electrically connected via the first module 121, where C+D=N+2. Therefore, it can be deduced that the series connection between multiple first ends 1111a is achieved by sequentially connecting the first first electrode 1111 with the (N-1)th first electrode 1111, the second first electrode 1111 with the Nth first electrode 1111, and so on. This series connection method enables the same-side ends of two first electrodes 1111 located in symmetrical positions (e.g.) to be connected in series within the second module 122.

[0086] Thus, the aforementioned symmetrical series connection method ensures that the current flowing through each first electrode 1111 is in the same direction, forming multiple current loops with consistent directions to avoid local cancellation of the magnetic field and improve the spatial uniformity of magnetic flux within the communication area.

[0087] In conjunction with any embodiment of the first electrode 1111, such as Figure 5 As shown, the first electrode 1111 includes two sub-electrodes 1111c. The sub-electrodes 1111c are provided with a first end 1111a and a second end 1111b.

[0088] Within the first electrode 1111, the two second ends 1111b of the two sub-electrodes 1111c are interconnected and electrically connected to the second module 122. The two first ends 1111a of the two sub-electrodes 1111c are spaced apart and electrically connected to the first module 121. The two sub-electrodes 1111c in the same first electrode 1111 are connected in parallel to the second module 122 through their second ends 1111b. That is, the second module 122 can be connected between the two second ends 1111b of the two sub-electrodes 1111c in the same first electrode 1111.

[0089] During the communication phase, two sub-electrodes 1111c in the same first electrode 1111 are connected in parallel via the first module 121, and multiple first electrodes 1111 are connected in series via the first module 121 and the second module 122 to form a coil circuit 101. In this stage, the two sub-electrodes 1111c within the same first electrode 1111 are named the first sub-electrode 1111c and the second sub-electrode 1111c, respectively. Specifically, since both the first sub-electrode 1111c and the second sub-electrode 1111c are connected in parallel to the second module 122 through the second terminal 1111b, when the first module 121 feeds power to the first terminal 1111a of the first sub-electrode 1111c, the current path will pass through the lead 130 connected to the second module 122 via the second terminal 1111b of the first sub-electrode 1111c, and then be connected in series with the other first electrodes 1111 through the second module 122 to form a coil circuit 101. Since the second sub-electrode 1111c has a larger resistance, it will not be used as the main path for current flow. Therefore, the second sub-electrode 1111c can be used as an isolation electrode, which helps to reduce impedance and thus enhance the communication signal.

[0090] During the touch control phase, the first ends 1111a of the two sub-electrodes 1111c in the same first electrode 1111 are mutually isolated by the first module 121. Multiple first electrodes 1111 are mutually isolated by the first module 121 and the second module 122, and multiple second electrodes 1121 are mutually isolated by the first module 121, forming a touch matrix for electromagnetic and / or capacitive touch control. In this phase, the two sub-electrodes 1111c in the same first electrode 1111 form a loop connecting the input terminal of the first module 121, one sub-electrode 1111c, the other sub-electrode 1111c, and the input terminal of the first module 121. This energizing path extends the length of the first electrode 1111, thereby increasing the range and accuracy of capacitive and / or electromagnetic touch control and improving touch response speed.

[0091] In some other embodiments, such as Figure 1 As shown, during the communication phase, at least two first electrodes 1111 are connected in parallel via the driving module 120 to form parallel electrodes. Thus, during the touch phase, [followed by...] Figure 1 When the drive module 120 feeds the parallel electrodes, the equivalent resistance in the parallel electrodes is reduced compared to the series resistance of the multiple first electrodes 1111, which can effectively reduce the drive resistance. Under the same excitation voltage, a greater signal strength can be obtained, which can effectively reduce communication interference and thus improve the reliability of antenna communication.

[0092] Multiple parallel electrodes are connected in series via the drive module 120 to form a coil circuit 101. In some embodiments, the series connection between the multiple parallel electrodes can be achieved by connecting all the first electrodes 1111 in pairs in series to form the coil circuit 101.

[0093] In another example scenario, see you Figure 1 The series connection between multiple parallel electrodes can be achieved by connecting multiple first electrodes 1111 corresponding to each of the multiple parallel electrodes in series. Then, one first electrode 1111 is selected from each parallel electrode as part of the coil loop 101. Thus, during the communication phase, because the parallel electrodes occupy a wider area, interference between coils with different numbers of turns can be reduced, and the coverage of the communication area can be improved, as well as the uniformity of the magnetic field distribution, thereby improving the uniformity of the field strength within the communication area. Simultaneously, forming the coil loop based on parallel electrodes rather than a single electrode effectively reduces antenna impedance and significantly improves antenna performance.

[0094] In conjunction with any of the embodiments of the first module 121 and the second module 122 described above, see back Figure 3 The first module 121 is an integrated module 1211, and the second module 122 is a switching circuit module 1221. The integrated module 1211 is equipped with a touch unit and a communication unit.

[0095] During the communication phase, multiple first electrodes 1111 are connected in series through a communication unit and a switching circuit module 1221 to form a coil circuit 101.

[0096] During the touch phase, multiple first electrodes 1111 are isolated from each other by touch units and switch circuit modules 1221, and multiple second electrodes 1121 are isolated from each other by touch units to form a touch matrix.

[0097] Thus, integrating the touch unit and communication unit into the first module 121 reduces the number of chips, package area, and peripheral circuits compared to using two separate chips, which helps to reduce the overall board space occupied. Furthermore, the second module 122 only needs to implement the switching function, without integrating complex signal processing circuits. Its chip area is small and the number of pins is few. Small packaged switch chips or even thin film transistor (TFT) switch arrays can be directly fabricated on the substrate bezel area, further reducing the bezel width. In addition, the first module 121, as the main control chip, can be centrally arranged on one side of the device motherboard or flexible circuit board. The lead 130 between it and the electrode module 110 only needs to be led out from one side bezel (the side of the first module 121), while the other side bezel (the side of the second module 122) only arranges the switch lead 130 and a few electrode connection lines. The functions of the two sides are decoupled, and the switch circuit module 1221 is completely isolated during the touch stage, which can effectively avoid crosstalk of the communication circuit to touch detection, and at the same time reduce the parasitic capacitance load during the touch stage.

[0098] In other embodiments, see back Figure 4 The first module 121 is a touch driver module 1212, and the second module 122 is a communication driver module 1222.

[0099] During the communication phase, multiple first electrodes 1111 are connected in series through the touch driving module 1212 and the communication driving module 1222 to form a coil circuit 101.

[0100] During the touch phase, the first electrode 1111 is isolated from each other by the touch driving module 1212 and the communication driving module 1222, and the second electrode 1121 is isolated from each other by the touch driving module 1212, forming a touch matrix.

[0101] Thus, unlike when the touch and communication functions share the same driving module 120, all leads 130 (including the leads 130 at the ends of the first electrode 1111 and the second electrode 1121) need to be gathered into the same module or cross-connected between the two side modules, so that each side frame needs to bear a large number of leads 130, making it difficult to compress the planar space.

[0102] In this embodiment, the touch driving module 1212 in the touch driving stage and the communication driving module 1222 in the communication driving stage are respectively set on opposite sides. This allows the lead 130 connected to the first electrode 1111 and the lead 130 connected to the second electrode 1121 to be arranged on different sides. They can be reused by time-division switching or lead 130 bifurcation technology, without having to be arranged repeatedly on the same side, thereby greatly reducing the total number of lead 130 on the side frame.

[0103] In some embodiments, such as Figure 1 and Figure 2As shown, during the communication phase, the coil circuit 101 can be excited to form a communication region, which covers the area corresponding to a plurality of first electrodes 1111 connected in series in sequence.

[0104] Thus, the signal strength within the communication area can be determined by the number of coil turns and current intensity in the coil circuit 101, while the range of the communication area is determined by the distribution of the first electrodes 1111. Compared to the traditional scheme that confines the communication antenna to a frame area or a small region, the communication area covered by the coil circuit in this scheme is configured by the regions corresponding to multiple first electrodes 1111 connected in series, allowing the communication area to be shared with the touch sensing area (i.e., the overlapping area of ​​the first electrodes 1111 and the second electrodes 1121). The communication area can be flexibly configured; for example, increasing the number of first electrodes 1111 can increase the number of coil turns, adjusting the distribution of the first electrodes 1111 can adjust the position and size of the communication area, increasing the number of first electrodes 1111 connected in parallel in each loop can reduce the coil circuit impedance, etc., significantly improving the flexibility of the communication area and communication performance. Especially in near-field communication applications, it can provide more convenient use, more reliable communication performance, and a wider range of applications. Furthermore, since the touch sensor 100 is generally laid out on the entire surface of the screen or other carrier, integrating the communication antenna and the touch sensor into one unit can achieve ultra-wide, flexible and accurate communication transmission. For example, the NFC antenna on a mobile phone can achieve communication transmission no matter how it is attached, without the need for precise alignment, which greatly improves the convenience and reliability of use.

[0105] In some other embodiments, such as Figure 8 As shown, the plurality of first electrodes 1111 include loop electrodes 1112 and spacer electrodes 1113. In the coil circuit 101, the loop electrodes 1112 are the first electrodes 1111 connected in series via the drive module 120. The spacer electrodes 1113 are the first electrodes 1111 that are either suspended or grounded via the drive module 120. At least one spacer electrode 1113 separates two adjacent loop electrodes 1112.

[0106] During the communication phase, the loop electrodes 1112 are connected in series via the drive module 120 to excite an alternating magnetic field for near-field communication. The spacer electrode 1113 is configured by the drive module 120 not to participate in the coil loop 101. Its electrical state is configured to not interfere with the magnetic field generated by the loop electrodes 1112 and to provide electromagnetic shielding, effectively reducing interference between coils and external interference.

[0107] It is understandable that if the loop electrodes 1112 are arranged adjacently, a large amount of parasitic flashlight and induced eddy current will be generated, which will affect the high-frequency signal of the coil circuit 101 and increase energy loss. In this embodiment, the spacer electrode 1113 is arranged between two adjacent loop electrodes 1112. This allows the suspended or grounded spacer electrode 1113 to shield the adjacent spacer electrode 1113, thereby effectively shielding the electric field coupling between adjacent loop electrodes 1112, reducing parasitic capacitance, and increasing the communication signal. At the same time, it breaks the formation path of the eddy current circuit, reduces eddy current loss, and improves communication efficiency.

[0108] To further reduce parasitic capacitance and turbine generation, in some embodiments, during the communication phase, a look-back is performed. Figure 1 The second electrode 1121 is either suspended or grounded via the drive module 120.

[0109] It is understandable that during the communication phase, when the drive module 120 drives the first electrode 1111 to form a coil loop 101 for communication transmission, the second electrode 1121 is suspended or grounded by the drive module 120. This makes the second electrode 1121 not carry potential, not participate in signal transmission or reception, and maintain electrical isolation from the coil loop 101 formed by the first electrode 1111.

[0110] In this way, parasitic capacitance can be reduced to a fixed capacitance to the ground, or reduced to a minimum (reducing parasitic capacitance to a minimum means that only structural parasitism remains), reducing high-frequency signal loss and facilitating the improvement of communication signal stability.

[0111] Furthermore, when the second electrode 1121 is grounded via the drive module 120, it can generate eddy currents in the alternating magnetic field of the coil circuit 101. The grounding of the second electrode 1121 provides a discharge path for these eddy currents, preventing them from generating a reverse magnetic field in the first electrode 1111 and reducing communication efficiency. Additionally, during the communication phase, the high-frequency signal generated by the first electrode 1111 may couple into the drive module 120 via the second electrode 1121, causing damage or performance degradation in the touch control phase. By leaving the second electrode 1121 suspended or grounded, electrical isolation can be achieved between the circuitry of the communication phase and the circuitry of the touch control phase, protecting the operational stability of the drive module 120.

[0112] In conjunction with any embodiment of the above-described coil circuit 101, such as Figure 10 As shown, multiple coil circuits 101 are provided, and the number and position of the first electrodes 1111 in the coil circuit 101 can be flexibly adjusted. Specifically, Figure 10The area within the dashed box shows the coil circuit 101 in operation. The different coil circuits 101 are switched by the drive module 120 switching the series connection of different first electrodes 1111. Multiple coil circuits 101 are arranged sequentially at intervals along the first direction X.

[0113] It is understood that multiple coil loops 101 are arranged sequentially at intervals along the first direction X, and these coil loops 101 can be connected in parallel to the drive module 120, allowing the drive module 120 to independently control each coil loop 101 or each group of coil loops 101. In this way, according to different communication location requirements, the drive module 120 can activate the coil loop 101 at the corresponding location, thereby activating the corresponding communication area, improving the targeting of the communication process, and contributing to greater power saving and signal concentration. For example, from... Figure 10 The coil circuit 101 shown in part (a) can be located at the top of the electronic device, for example... Figure 10 The coil circuit 101 shown in part (b) can be located in the middle of the electronic device, for example... Figure 10 The coil circuit 101 shown in part (c) can be located at the bottom of the electronic device, enabling free switching of the communication area of ​​the electronic device.

[0114] In another aspect of this application, a touch screen 10 is provided, including a screen body and a touch communication sensor 100, wherein the touch communication sensor 100 is mounted on the surface of the screen body. A first electrode layer 111, a second electrode layer 112, and the screen body are sequentially stacked along the thickness direction Z of the screen body.

[0115] Thus, by setting the touch communication sensor 100 in the above embodiment, the touch screen 10 can take into account both touch and communication functions, and at the same time, it is beneficial to make the touch screen 10 thinner and with a narrower bezel.

[0116] In conjunction with embodiments of the first module 121 and the second module 122, such as Figure 9 As shown, the touch communication sensor 100 also includes a control bus 140. The first module 121 is communicatively connected to the second module 122 through the control bus 140, enabling the first module 121 to control the second module 122. In this way, the control integration function of the touch communication sensor 100 can be realized without adding additional controller components, which helps to reduce manufacturing costs.

[0117] Optionally, in other embodiments, the first module 121 can communicate with the second module 122 via an external device such as a mobile phone, enabling the external device to control both the first module 121 and the second module 122. In this way, different control methods can be implemented for the first module 121 and the second module 122 by outputting different commands from the external device, thereby achieving different change modes and enriching the application scenarios of the touch communication sensor 100.

[0118] Another aspect of this application, such as Figure 11 As shown, an interactive control method is provided, which is applied to a touch communication sensor 100.

[0119] Interactive control methods include:

[0120] S100: In response to the communication signal, according to the set communication area, multiple first electrodes 1111 in the corresponding area are connected in series in sequence through the driving module 120 to form a coil circuit 101 for communication transmission.

[0121] It is understood that the drive module 120 has a region selection logic (such as a switch matrix, decoder or microcontroller) inside or outside, which is used to connect the end lead 130 of the first electrode 1111 in the corresponding region to the drive module 120 according to the set communication region, and form a coil circuit 101.

[0122] In this way, the coil circuit 101 is activated only within the designated communication area, while the first electrode 1111 in other areas remains suspended, grounded, or not connected in series. This avoids the ineffective power consumption caused by large-area magnetization of the touch communication sensor 100, thus reducing power consumption. Furthermore, it reduces electromagnetic radiation from other non-designated communication areas, thereby reducing interference to surrounding electronic devices and decreasing the probability of external interference entering the communication circuit, improving the signal-to-noise ratio of the received signal. In addition, when a connection needs to be established with a communication peer (such as an active pen that only writes in the lower left corner of the screen or an NFC card near the right edge), activating only the coil circuit 101 in the corresponding area avoids signal aliasing across multiple areas, improving the accuracy and reliability of communication.

[0123] The communication signal can be, for example, a communication command from the main controller of the touchscreen 10, a wake-up signal from an external communication peer, or a touch and communication mode switching signal from the touch communication sensor 100 itself. See also... Figure 10 As shown, the communication area can be: a preset area division (such as dividing the touch communication sensor 100 into upper, middle and lower communication areas), an area determined based on the touch detection results (such as the area where the active pen touches the point), an area located based on the external signal strength (such as the area where the NFC card is near), or any area dynamically specified by the system.

[0124] S200: In response to the touch signal, the first electrode 1111 and the second electrode 1121 are isolated from each other by the driving module 120 to form a touch matrix for touch sensing.

[0125] In this way, the first electrode 1111 and the second electrode 1121 are isolated from each other, ensuring that the coil circuit 101 formed during the communication phase is isolated. The first electrode 1111 is restored to an independent strip electrode, and the second electrode 1121 is removed from the floating / grounded state and connected to the touch circuit, thereby avoiding the residual magnetic field or current during the communication phase from affecting the touch detection accuracy.

[0126] Furthermore, in one application scenario, during the electromagnetic touch control stage, the driving module 120 connects the first electrode 1111 and the second electrode 1121 to each form a single-turn circuit, such that one of them forms a transmitting coil and the other forms a receiving coil; the two work together to form a capacitance and electromagnetic compatibility matrix. In another application scenario, in the touch matrix, the first electrode 1111 serves as a driving line (Tx), and the second electrode 1121 serves as a sensing line (Rx). The driving module 120 sequentially applies an excitation signal to the first electrode 1111 and reads the capacitance change from the second electrode 1121.

[0127] In some embodiments, such as Figure 12 As shown, the interactive control method also includes:

[0128] S001. Determine the communication area according to the set communication mode.

[0129] The communication area refers to the range of signals that the driving module 120 can emit when it drives the first electrode layer 111 to form the coil circuit 101. Within this range, it can interact with the signal receiving end or the signal access end.

[0130] S002. Determine whether the communication mode is static mode.

[0131] If the communication mode is static, the communication area is set to a fixed area set by the system.

[0132] If the communication mode is dynamic, the communication area is set to a variable area set by the system.

[0133] The variable area set by the system can be either user-defined or automatically identified by the system.

[0134] Thus, depending on the application scenario, communication signals can be selectively focused on a fixed or variable area, avoiding ineffective full-area coverage. Furthermore, static mode ensures basic communication coverage, while dynamic mode facilitates low-power, high-precision directional communication.

[0135] In addition, the variable area supports user-defined or system-automatically identified variable areas, which allows the range of the communication area to be dynamically adjusted according to the actual situation. This avoids the need to adjust the drive power of the drive module 120 or the range of the communication area multiple times to achieve communication signal interaction, thus improving the efficiency of communication interaction.

[0136] In some other embodiments, such as Figure 13 As shown, the interactive control method also includes:

[0137] S003. In response to the application scenario signal, obtain the application scenario area based on the application scenario signal, and set the communication area to the application scenario area corresponding to the application scenario signal.

[0138] It is understandable that the application scenario signal originates from at least one of the main control, application program, or external device in the interactive system. The application scenario area is obtained based on the application scenario signal, the application scenario signal is parsed to obtain the area configuration information, and the communication area is set to the corresponding application scenario area based on the area configuration information.

[0139] Specifically, in one implementation scenario, the corresponding application scenario area can be determined by parsing the area identifier carried in the application scenario signal and using a preset area mapping table. In another implementation scenario, the boundary of the application scenario area can be directly determined by parsing the coordinate parameters in the application scenario signal. In one example scenario, when a payment scenario signal is received, the communication area can be set in the payment code display area, or in a side position near the touch communication sensor 100, etc. In another example scenario, when a multi-user interaction scenario signal is received, the communication area can be set in the operation area of ​​different users. Optionally, the application scenario can also be a map application, etc., without too many restrictions.

[0140] It should be noted that in some example scenarios, the execution order of steps S001, S002, and S003 can be prioritized or not. For example, step S003 has a higher priority than steps S001 and S002; that is, when an application scenario signal is received, the communication area is preferentially set as the application scenario area, overriding the area settings in static or dynamic modes. This allows for adjustment of the communication area based on the application scenario area for each communication, reducing the difficulty of communication area adjustment and improving its accuracy and efficiency.

[0141] In some embodiments, such as Figure 14 As shown, the interactive control method also includes:

[0142] S300: During the communication transmission process, acquire the signal parameters of the communication transmission.

[0143] The signal parameters include, but are not limited to, at least one of the following: Received Signal Strength Indication (RSSI), Signal-to-Noise Ratio (SNR), Bit Error Rate (BER), or the change in the quality factor (Q value) of the communication link.

[0144] S400. The number of first electrodes 1111 participating in forming the coil circuit 101 and / or the distribution position of the first electrodes 1111 participating in forming the coil circuit 101 are dynamically adjusted according to the signal parameters, so as to adjust the signal strength and / or communication area of ​​the communication transmission.

[0145] Understandably, adjusting the number of first electrodes 1111 participating in forming the coil loop 101 (e.g., expanding the number of first electrodes 1111 in the coil loop 101 from 4 to 6) increases the equivalent area and magnetic field strength of the coil loop 101, thereby adjusting the communication signal strength and increasing the signal coverage. Conversely, reducing the number of first electrodes 1111 participating in forming the coil loop 101 reduces the communication area and lowers overall power consumption.

[0146] By altering the spatial distribution of the first electrodes 1111 that participate in forming the coil circuit 101, converging or shifting them towards the signal receiver (such as an active pen or NFC card), the communication area can be moved closer to the target signal receiver, improving the accuracy of signal interaction. This adjustment of distribution allows for spatial movement following the direction of the strongest signal (i.e., the direction of the external device), enabling precise signal capture from moving devices such as active pens and NFC cards, thus enhancing the mobile interaction experience. Furthermore, when strong interference in a certain area causes communication failure, the system can be dynamically adjusted to bypass the interfered electrodes and reconstruct the coil circuit 101 using other first electrodes 1111, establishing a clean communication link in a new spatial area, thereby improving the system's anti-interference capability.

[0147] In one example, dynamically adjusting the number and / or area of ​​the first electrodes 1111 participating in forming the coil loop 101 based on signal parameters can be achieved by comparing the acquired signal parameters with a preset target threshold. If the signal parameters are below the first threshold (e.g., RSSI is too weak), it is determined that the communication signal needs to be enhanced. If the signal parameters are above the second threshold (e.g., SNR is too high), and the system is in a low-power mode, it is determined that power consumption can be reduced.

[0148] Alternatively, in one embodiment, such as Figure 15 As shown, step S400 above includes:

[0149] S410. Determine whether the signal parameters are lower than the preset threshold.

[0150] When the signal parameters are lower than a preset threshold, the number of first electrodes 1111 participating in forming the coil circuit 101 is increased, or the boundary region formed by the first electrodes 1111 participating in forming the coil circuit 101 is expanded, until the signal parameters meet the preset threshold.

[0151] Understandably, signal parameters below a preset threshold will result in a weak communication signal, manifested as a weak signal frequency or a small signal range. In this case, increasing the number of first electrodes 1111 participating in forming the coil loop 101 increases the magnetic field strength, thereby enhancing communication distance and penetration, and improving communication interaction levels. Expanding the boundary region formed by the first electrodes 1111 participating in forming the coil loop 101 is achieved by changing the position of the first electrodes 1111 on the border, allowing the boundary region to expand, thereby increasing the communication area, expanding communication coverage, adapting to the location of the other end, and improving communication interaction capabilities.

[0152] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A touch communication sensor, characterized in that, include: An electrode module includes a first electrode layer and a second electrode layer; the first electrode layer includes a plurality of first electrodes arranged sequentially along a first direction, and the second electrode layer includes a plurality of second electrodes arranged sequentially along a second direction; the first electrode layer and the second electrode layer are insulated from each other; the first direction and the second direction are intersecting each other. The driving module is provided, wherein the first electrode and the second electrode are electrically connected to the driving module via several leads. The driving module is used to drive the electrode module to perform communication transmission during the communication phase and to drive the electrode module to perform touch sensing during the touch phase. In the communication phase, multiple first electrodes are connected in series via several leads through the driving module to form a coil circuit for communication transmission; in the touch phase, the first electrodes and the second electrodes are isolated from each other through the driving module to form a touch matrix for touch sensing.

2. The touch communication sensor according to claim 1, characterized in that, The driving module includes a first module and a second module. The first module and the second module are respectively disposed at two opposite ends of the first electrode. The first module is electrically connected to one end of the first electrode and one or both ends of the second electrode via several leads. The second module is electrically connected to the other end of the first electrode via several leads. The first module and the second module are signal connected. During the communication phase, multiple first electrodes are connected in series through the first module and the second module to form the coil circuit; during the touch phase, multiple first electrodes are isolated from each other through the first module and the second module, and multiple second electrodes are isolated from each other through the first module to form the touch matrix.

3. The touch communication sensor according to claim 2, characterized in that, The coil circuit includes at least two first electrodes. During the communication phase, along the circuit direction of the coil circuit, one end of the plurality of first electrodes located on the same side is sequentially connected in pairs via the first module, and the other end of the plurality of first electrodes located on the same side is sequentially connected in pairs via the second module.

4. The touch communication sensor according to claim 3, characterized in that, The first electrode is provided with a first end and a second end opposite to each other along the second direction; N first electrodes form the coil circuit, and the N first electrodes are arranged sequentially along the first direction; in the coil circuit, the second end corresponding to the Ath first electrode and the second end corresponding to the Bth first electrode are electrically connected via the second module, the first end corresponding to the Cth first electrode and the first end corresponding to the Dth first electrode are electrically connected via the first module, the first end corresponding to the 1st first electrode and the first end corresponding to the Pth first electrode are respectively the input end and the output end of the coil circuit, and are electrically connected to the first module, where A+B=N+1, C+D=N+2, P=(N+2) / 2, and N≥4, N=2k, k and P are both positive integers.

5. The touch communication sensor according to claim 2, characterized in that, The first electrode includes two sub-electrodes, each sub-electrode having a first end and a second end; within the first electrode, the two second ends of the two sub-electrodes are interconnected and electrically connected to the second module, and the two first ends of the two sub-electrodes are spaced apart and electrically connected to the first module; the two sub-electrodes in the same first electrode are connected in parallel to the second module through their second ends; During the communication phase, two sub-electrodes of the same first electrode are connected in parallel via the first module, and multiple first electrodes are connected in series via the first module and the second module to form the coil circuit; during the touch phase, the first ends of two sub-electrodes of the same first electrode are isolated from each other via the first module, multiple first electrodes are isolated from each other via the first module and the second module, and multiple second electrodes are isolated from each other via the first module to form the touch matrix for electromagnetic touch and / or capacitive touch.

6. The touch communication sensor according to claim 2, characterized in that, The first module is an integrated module, and the second module is a switching circuit module. The integrated module includes a touch unit and a communication unit. During the communication phase, multiple first electrodes are connected in series through the communication unit and the switching circuit module to form the coil circuit. During the touch phase, multiple first electrodes are isolated from each other through the touch unit and the switching circuit module, and multiple second electrodes are isolated from each other through the touch unit to form the touch matrix. Alternatively, the first module is a touch driving module, and the second module is a communication driving module; in the communication phase, multiple first electrodes are connected in series through the touch driving module and the communication driving module to form the coil circuit; in the touch phase, the first electrodes are isolated from each other through the touch driving module and the communication driving module, and the second electrodes are isolated from each other through the touch driving module to form the touch matrix.

7. The touch communication sensor according to any one of claims 1 to 6, characterized in that, The communication area covered by the coil circuit is configured by multiple areas corresponding to the first electrodes that are connected in series sequentially.

8. The touch communication sensor according to any one of claims 1 to 6, characterized in that, During the communication phase, at least two of the first electrodes are connected in parallel via the driving module to form parallel electrodes; multiple parallel electrodes are connected in series via the driving module to form the coil circuit.

9. The touch communication sensor according to any one of claims 1 to 6, characterized in that, The plurality of first electrodes include loop electrodes and spacer electrodes; in the coil circuit, the loop electrodes are the first electrodes connected in series via the driving module; the spacer electrodes are the first electrodes suspended or grounded via the driving module; at least one spacer electrode is spaced between two adjacent loop electrodes.

10. The touch communication sensor according to claim 9, characterized in that, During the communication phase, the second electrode is either suspended or grounded via the driving module.

11. The touch communication sensor according to any one of claims 1 to 6, characterized in that, The number of coil circuits is set to multiple, and the multiple coil circuits are arranged sequentially at intervals along the first direction.

12. A touch screen, characterized in that, The device includes a screen body and a touch communication sensor as described in any one of claims 1 to 11, wherein the touch communication sensor is mounted on the surface of the screen body; the first electrode layer, the second electrode layer, and the screen body are sequentially stacked along the thickness direction of the screen body.

13. An interactive control method, characterized in that, Applied to the touch communication sensor as described in any one of claims 1 to 11; the interactive control method includes: In response to a communication signal, according to a set communication area, multiple first electrodes in the corresponding area are connected in series via the driving module to form a coil circuit for communication transmission; In response to a touch signal, the first electrode and the second electrode are isolated from each other by the driving module to form a touch matrix for touch sensing.

14. The interactive control method according to claim 13, characterized in that, The interactive control method further includes: The communication area is determined according to the set communication mode: If the communication mode is static, the communication area is set to a fixed area defined by the system; if the communication mode is dynamic, the communication area is set to a variable area defined by the system. The variable area set by the system can be either user-defined or automatically identified by the system.

15. The interactive control method according to claim 13, characterized in that, The interactive control method further includes: In response to the application scenario signal, the application scenario area is obtained based on the application scenario signal, and the communication area is set as the application scenario area.

16. The interactive control method according to claim 14, characterized in that, The interactive control method further includes: During communication transmission, signal parameters are acquired, and the number of the first electrodes participating in forming the coil circuit and / or the distribution position of the first electrodes participating in forming the coil circuit are dynamically adjusted according to the signal parameters, so as to adjust the signal strength and / or communication area of ​​the communication transmission.

17. The interactive control method according to claim 16, characterized in that, Dynamically adjusting the number of the first electrodes participating in forming the coil circuit and / or adjusting the distribution position of the first electrodes participating in forming the coil circuit according to the signal parameters includes: When the signal parameter is lower than a preset threshold, the number of the first electrodes participating in forming the coil circuit is increased, or the boundary region formed by the first electrodes participating in forming the coil circuit is expanded, or the position of the region formed by the first electrodes participating in forming the coil circuit is moved, until the signal parameter meets the preset threshold.

Images