Antenna device, electrode film, and interactive control method

Abstract

The application relates to an antenna device, an electrode film and an interactive control method. The antenna device comprises an electrode module and a driving module. The electrode module comprises a plurality of first electrodes which are arranged in parallel along a first direction in sequence. The first electrodes are oppositely provided with first ends and second ends. The first ends and the second ends are arranged at intervals along a second direction, and the second direction intersects the first direction. The first ends and the second ends are respectively electrically connected to the driving module through lead wires, and the driving module is used for driving the electrode module to perform communication transmission. At least two first electrodes are arranged in series through the driving module to form a coil loop for communication transmission. The communication area and the communication performance of the antenna device in the application can be flexibly configured, the use is more convenient, the communication is more reliable, the application is more extensive, the occupied area can be reduced, and narrow frame is realized.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to antenna devices, electrode films, and interactive control methods. Background Technology

[0002] In electronic devices, near-field communication antennas (such as NFC) are generally independent functional components. For example, in mobile phones, the communication antenna is located on the back of the phone.

[0003] In related technologies, communication antennas, such as NFC antennas, are often placed in a fixed location on the device. Their communication area is limited to this fixed location, resulting in a small communication range. For example, the NFC antenna on a mobile phone can only perform near-field communication in a localized area of ​​the phone. Communication often fails due to misalignment, and the signal is prone to instability and interruption. Secondly, communication antennas require additional space, increasing the overall spatial layout of the device and further increasing the width or thickness of the electronic device. This hinders the pursuit of a thinner and lighter design and negatively impacts the overall aesthetics. Summary of the Invention

[0004] Therefore, it is necessary to provide an antenna device, electrode film, and interactive control method to address the problems of fixed and unchangeable communication area and small communication range of near-field communication antennas.

[0005] A first aspect of this application provides an antenna device, comprising:

[0006] An electrode module includes a plurality of first electrodes arranged in parallel along a first direction; the first electrodes are provided with a first end and a second end opposite to each other, the first end and the second end are spaced apart along a second direction, and the second direction intersects the first direction;

[0007] A driving module, wherein the first end and the second end are each electrically connected to the driving module via leads, and the driving module is used to drive the electrode module for communication transmission; wherein at least two of the first electrodes are connected in series via the driving module to form a coil circuit for communication transmission.

[0008] In one embodiment, the coil circuit includes at least two first electrodes, wherein, along the circuit direction of the coil circuit, two adjacent first electrodes in the coil circuit are connected in pairs via the driving module, with the first end of one first electrode and the second end of the other first electrode connected sequentially.

[0009] In one embodiment, the drive module and the electrode module are spaced apart along the first direction.

[0010] In one embodiment, the drive module and the electrode module are spaced apart along a second direction.

[0011] In one embodiment, a portion of the lead electrically connected to the second end is located on at least one of the two sides of the first electrode that are disposed opposite each other along the first direction.

[0012] In one embodiment, within the coil circuit, all leads electrically connected to the second terminal are routed through the first electrode to the drive module along one side opposite to the first direction;

[0013] Alternatively, at least three first electrodes for forming the coil circuit are arranged sequentially to form an electrode array group; within the coil circuit, the number of electrode array groups is set to two, namely a first array group and a second array group; all leads in the first array group that are electrically connected to the second end are routed through the first electrode along the first direction to the drive module; all leads in the second array group that are electrically connected to the second end are routed through the first electrode along the second direction to the drive module.

[0014] 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.

[0015] 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; multiple parallel electrodes are connected in series via the driving module to form the coil circuit.

[0016] And / or, the plurality of first electrodes include a loop electrode and a spacer electrode; in the coil loop, the loop electrode is a first electrode that is sequentially connected via the drive module; the spacer electrode is a first electrode that is suspended or grounded via the drive module; in the coil loop, at least one spacer electrode is spaced between two adjacent loop electrodes.

[0017] A second aspect of this application provides an electrode film comprising the antenna device and substrate described in the above embodiments; the electrode module of the antenna device is disposed on the substrate.

[0018] According to a third aspect of this application, an interactive control method is provided, applied to the antenna device or the electrode film in the above embodiments; the interactive control method includes:

[0019] 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.

[0020] In one embodiment, the interactive control method further includes:

[0021] The communication area is determined according to the set communication mode;

[0022] 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.

[0023] The variable area is either user-defined or automatically identified by the system.

[0024] In one embodiment, the interactive control method further includes:

[0025] 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.

[0026] In one embodiment, the interactive control method further includes:

[0027] During communication transmission, signal parameters are acquired, and the number and / or area of ​​the first electrodes participating in forming the coil circuit are dynamically adjusted according to the signal parameters to adjust the signal strength and / or communication area of ​​the communication transmission.

[0028] In one embodiment, dynamically adjusting the number and / or region of the first electrodes participating in forming the coil circuit according to the signal parameters includes:

[0029] 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.

[0030] The aforementioned antenna device, electrode film, and interactive control method involve a driving module that connects multiple first electrodes arranged along a first direction in series via leads to form a continuous coil loop. This continuous coil loop, when powered, can generate an antenna signal and serve as a communication area (such as magnetic coupling or inductive communication), enabling signal transmission and reception, thus achieving the communication function.

[0031] The communication antenna is a coil circuit formed by the first electrode connected in series. The size and location of the communication antenna area are determined by the area corresponding to the first electrode arranged in series. By configuring the number and / or area of ​​the first electrode in the coil circuit, the communication area and antenna performance of the communication antenna can be flexibly configured. Especially in near-field communication applications, the 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.

[0032] Furthermore, during the communication phase, the first electrode is connected in series with the driving module to form a coil circuit. By sharing the first electrode as a component of the coil circuit, the length and number of leads between the driving module and the first electrode can be reduced, thereby reducing the size of the antenna device and facilitating the narrow bezel design of electronic devices with antennas. Simultaneously, since the electrode module can be relatively centered or positioned across the entire surface of the electronic device, communication functionality can be achieved at the center of the device, eliminating the need to occupy excessive installation space for the antenna on the sides and improving the narrow bezel performance of electronic devices with antennas. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the antenna device shown in one embodiment.

[0034] Figure 2 This is a schematic diagram of the coil circuit of an antenna device shown in one embodiment.

[0035] Figure 3 This is a schematic diagram of the mating structure of the first electrode in an antenna device shown in one embodiment.

[0036] Figure 4 for Figure 3 The diagram shows a schematic of the coil circuit structure of the antenna device in one embodiment during the communication phase.

[0037] Figure 5 This is a schematic diagram of the coil circuit of the antenna device shown in another embodiment.

[0038] Figure 6 This is a schematic diagram of the wiring structure of the coil circuit in the antenna device shown in other embodiments.

[0039] Figure 7 This is a schematic diagram of the electrical connection structure of the antenna device shown in one embodiment during the communication phase.

[0040] Figure 8 This is a schematic diagram illustrating different switching scenarios of the coil circuit in an antenna device shown in one embodiment.

[0041] Figure 9This is a flowchart illustrating an interactive control method in one embodiment.

[0042] Figure 10 This is a schematic diagram illustrating different switching scenarios of the coil circuit in an antenna device shown in one embodiment.

[0043] Figure 11 This is a flowchart illustrating the interactive control method in another embodiment.

[0044] Figure 12 This is a flowchart illustrating the method for determining the communication area in an interactive control method shown in one embodiment.

[0045] Figure 13 for Figure 12 The diagram shows a detailed process flow for step S300.

[0046] Explanation of reference numerals in the attached figures:

[0047] 10. Electrode film; 100. Antenna device; 101. Coil circuit; 1011. First array group; 1012. Second array group; 110. Electrode module; 1101. First electrode; 1101a. First end; 1101b. Second end; 1102. Circuit electrode; 1103. Spacer electrode; 120. Drive module; 130. Lead wire; X. First direction; Y. Second direction; Z. Thickness direction. Detailed Implementation

[0048] 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.

[0049] One aspect of this application is referenced in [reference]. Figure 1 and Figure 2 As shown, an antenna device 100 is provided, including an electrode module 110 and a driving module 120.

[0050] Electrode module 110 includes a plurality of first electrodes 1101 arranged in parallel along a first direction X. The first electrodes 1101 are provided with a first end 1101a and a second end 1101b opposite to each other. The first end 1101a and the second end 1101b are spaced apart along a second direction Y, and the first direction X and the second direction Y intersect.

[0051] Both the first end 1101a and the second end 1101b are electrically connected to the driving module 120 via lead 130. The driving module 120 is used to drive the electrode module 110 for communication transmission. At least two first electrodes 1101 are connected in series via the driving module 120 to form a coil circuit 101 for communication transmission.

[0052] 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 the electrode module. The 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. Drive module 120 can be a drive circuit board, on which drive chips and / or drive circuits required for communication are disposed. The drive module and the leads can be directly interconnected or interconnected via flexible connectors such as FPCs.

[0053] It is understandable that, such as Figure 2 As shown, during the communication phase, the drive module 120 connects multiple first electrodes 1101 arranged along the first direction X in series via leads 130 to form a continuous coil loop 101. The current path within the first electrode 1101 can be referenced. Figure 2 The dashed line in the diagram indicates that the current path of the first electrode 1101 within the coil circuit 101 is between the first end 1101a and the second end 1101b. Figure 2 The dashed lines in the diagram only indicate the input and output terminals in the current path within the first electrode 1101 and do not limit the actual current path structure within the first electrode 1101. This continuous coil loop 101 can generate antenna signals when fed, serving as a communication area (such as magnetic coupling or inductive communication) to achieve signal transmission and reception, thus realizing the communication function.

[0054] The coil circuit 101 formed by the series connection of the first electrodes 1101 is the communication antenna. The size and location of the communication antenna area are determined by the area corresponding to the first electrodes 1101 arranged in series. By configuring the number and / or area of ​​the first electrodes 1101 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, the antenna communication is no longer limited to a fixed position and can be flexibly adjusted according to actual needs, making it more convenient to use.

[0055] Furthermore, during the communication phase, the first electrode 1101 is connected in series with the driving module 120 to form a coil loop 101. By sharing the first electrode 1101 as a component of the coil loop 101, the length and number of leads 130 within the coil loop 101 can be reduced, thereby reducing the size of the antenna device 100 and facilitating a narrow bezel design for the electronic device with the antenna device 100 installed. Simultaneously, since the electrode module 110 can be relatively centered or positioned across the entire surface of the electronic device, communication functionality can be achieved at the center of the electronic device, eliminating the need to occupy excessive mounting space for the antenna device 100 on the sides, thus improving the narrow bezel performance of the electronic device with the antenna device 100 installed.

[0056] In one implementation, see back Figure 1 The drive module 120 is located on one side of the electrode module 110. In this way, the leads electrically connected to the first end 1101a and the leads connected to the second end 1101b can both be routed to the same side, which reduces the difficulty of routing and reduces the number of leads 130 on the side of the electrode module 110 that are away from the drive module 120, which is beneficial for achieving a narrow single-sided frame design.

[0057] like Figure 1 and Figure 3 As shown, the first electrode 1101 in the electrode module 110 of this embodiment can also be used to implement other functions. For ease of understanding, another aspect of this application provides an electrode film 10. The electrode film 10 includes an antenna device 100 and a substrate. The electrode module 110 of the antenna device 100 is disposed on the substrate.

[0058] Thus, during the communication phase, the first electrode 1101 is connected in series with the driving module 120 to form a coil loop 101. This reduces the length and number of leads 130 between the driving module 120 and the first electrode 1101, and eliminates the need for additional independent power supply traces for the antenna function, thereby reducing the bezel size. Furthermore, the shared design of the coil loop 101 and the first electrode 1101 avoids the need for a separate coil loop 101 on the outside of the electrode module 110. This helps reduce the number of leads 130 around the electrode module 110, which in turn helps reduce the width of the antenna device 100, and consequently facilitates the narrow bezel performance of the electrode film 10.

[0059] In some embodiments, such as Figure 1 , Figure 2 as well as Figure 4 As shown, the coil circuit 101 includes at least two first electrodes 1101. During the communication phase, along the circuit direction of the coil circuit 101, two adjacent first electrodes 1101 within the coil circuit 101 are sequentially connected in pairs via the drive module 120, with the first end 1101a of one first electrode 1101 and the second end 1101b of the other first electrode 1101 connected in pairs.

[0060] Specifically, see Figure 2 Taking the coil circuit 101 formed by three first electrodes 1101 as an example, from right to left, they are the first first electrode 1101, the second first electrode 1101, and the third first electrode 1101. The circuit consists of the drive module 120, the lead wire 130, the first end 1101a of the first first electrode 1101, the first first electrode 1101, the second end 1101b of the first first electrode 1101, the lead wire, the drive module 120, the lead wire, the first end 1101a of the second first electrode 1101, the second end 1101b of the second first electrode 1101, the drive module 120, the first end 1101a of the third first electrode 1101, the third first electrode 1101, the second end 1101b of the third first electrode 1101, the lead wire, and the drive module 120, forming a series circuit. This series structure forms a multi-turn coil structure within the communication area, enhancing magnetic flux and communication coupling capability. Similarly, as... Figure 2 The series connection of the first first electrode 1101, the second first electrode 1101, and the third first electrode 1101 in the coil circuit 101 shown can be reversed, which will not be elaborated here.

[0061] In this way, the magnetic fields generated by the multi-turn coil structure are superimposed rather than canceled between the electrodes, resulting in a more uniform magnetic field distribution within the communication area and avoiding localized excessive strength or weakness. Furthermore, the switching connections between different first electrodes 1101 are all completed within the driving module 120. The frame area only needs to be arranged with radial leads 130 from the first end 1101a to the driving module 120, eliminating the need for lateral jumpers between different second ends 1101b. This reduces the frame wiring density, and the wiring is concentrated on the side closest to the driving module 120, which is beneficial for achieving narrow frame performance and a thinner profile in the antenna device 100.

[0062] Alternatively, in one embodiment, such as Figure 5 As shown, the drive module 120 and the electrode module 110 are arranged sequentially and at intervals along the first direction X.

[0063] In one embodiment, at least a portion of the lead 130 connected to the first end 1101a and at least a portion of the lead 130 connected to the second end 1101b both extend along a first direction X to be electrically connected to the drive module 120.

[0064] It is understood that the driving module 120 and the electrode module 110 are arranged sequentially and at intervals along the first direction X. This facilitates the extension of at least a portion of the leads 130 connected to the first end 1101a and the leads 130 connected to the second end 1101b along the first direction X to electrically connect with the driving module 120. This allows the leads 130 to be concentrated on both sides of the electrode module 110, rather than concentrated on the side of the electrode module 110 away from the driving module 120, which is beneficial for achieving narrow bezel performance on both sides. Furthermore, the sequential and interval arrangement of the driving module 120 and the electrode module 110 along the first direction X reduces the distance between the leads 130 and the first end 1101a, thereby reducing the material consumption of the leads 130 and the space occupied by the leads 130, which is beneficial for the miniaturization of the antenna device 100.

[0065] In one implementation, see back Figures 2 to 4 The drive module 120 and the electrode module 110 are spaced apart along the second direction Y.

[0066] In one embodiment, the lead 130 electrically connected to the first end 1101a is electrically connected to the drive module 120 along the second direction Y, and the lead 130 electrically connected to the second end 1101b extends sequentially along the first direction X and the second direction Y to be electrically connected to the drive module 120.

[0067] That is, the driving module 120 and the electrode module 110 are spaced apart along the second direction Y. This facilitates the extension of the lead 130, which is electrically connected to the first end 1101a, in the second direction Y to directly connect with the driving module 120. This minimizes the distance of the lead 130 connected to the first end 1101a, reduces parasitic resistance and capacitance, and improves the transmission quality of high-frequency communication signals. Furthermore, the concentrated arrangement of the lead 130 between the first end 1101a and the driving module 120 helps avoid cluttered arrangement of the lead 130 and facilitates the narrow bezel design of the antenna device 100. In addition, the lead 130, which is electrically connected to the second end 1101b, extends in the first direction X and then bends in the second direction Y to connect with the driving module 120. This reduces the length and space occupied by the lead 130 on the side of the electrode module 110 away from the driving module 120, thereby contributing to the narrow bezel design of the antenna device 100.

[0068] In one example, the first direction X and the second direction Y are set perpendicularly. This minimizes the distance between the lead wire 130 and the electrode module 110, reducing the length of the lead wire 130 and thus reducing its impact on the bezel size, which is beneficial for narrowing the bezel.

[0069] Furthermore, in one embodiment, see back Figures 4 to 6The portion of the lead 130 electrically connected to the second end 1101b is located on at least one of the two sides of the first electrode 1101 that are disposed opposite each other along the first direction X. Thus, by leading the lead 130 electrically connected to the second end 1101b out from the side of the electrode module 110, the electromagnetic influence of the lead 130 on the first electrode 1101 is reduced. Furthermore, the leads 130 connected to the second end 1101b corresponding to each first electrode 1101 can be arranged side-by-side on the side of the electrode module 110 without overlapping or crossing, reducing interference between the first electrodes 1101 and improving the radiation performance of the gain antenna device 100.

[0070] In some implementations, see back Figure 6 Within the coil circuit 101, all leads 130 electrically connected to the second end 1101b are routed through the first electrode 1101 to the drive module 120 along the opposite side of the first direction X. This allows a portion of all leads 130 electrically connected to the second end 1101 within the coil circuit 101 to be arranged on the side of the electrode module 110 along the first direction X, while the other side of the electrode module 110 along the first direction X can be arranged without leads 130, which is beneficial for achieving a narrow bezel on one side of the antenna device 100.

[0071] In another embodiment, see back Figure 2 and Figure 4 At least three first electrodes 1101 for forming the coil circuit 101 are arranged sequentially to form an electrode array group. Within the coil circuit 101, the number of electrode array groups is set to two: a first array group 1011 and a second array group 1012. All leads 130 in the first array group 1011 that are electrically connected to the second end 1101b are routed through the first electrode 1101 along one side of the first direction X to the drive module 120. Similarly, all leads 130 in the second array group 1012 that are electrically connected to the second end 1101b are routed through the first electrode 1101 along the other side of the first direction X to the drive module 120.

[0072] That is, a portion of the leads 130 within the coil circuit 101 are arranged on one side of the electrode module 110 along the first direction X, while the remaining portion are arranged on the other side of the electrode module 110 along the first direction X. This allows the leads 130 electrically connected to the second end 1101b to be relatively evenly distributed on both sides of the electrode module 110 along the first direction X, thereby achieving uniform wiring on both sides of the electrode module 110 and reducing the wiring size on one side, which is beneficial for achieving a narrow bezel on both sides of the antenna device 100.

[0073] In some embodiments, such as Figure 1 , Figure 3 as well as Figure 6 As shown, during the communication phase, at least two first electrodes 1101 are connected in parallel via the driving module 120 to form parallel electrodes. Thus, during the touch phase, [followed by...] Figure 6 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 1101, 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.

[0074] 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 each pair of first electrodes 1101 in parallel to form the coil circuit 101.

[0075] In another embodiment, see back Figure 6 The series connection between multiple parallel electrodes can be achieved by connecting multiple first electrodes 1101 corresponding to each of the multiple parallel electrodes in series. In this case, one first electrode 1101 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 is improved, as is 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.

[0076] In some embodiments, such as Figure 1 and Figure 2 As shown, during the communication phase, the communication area covered by the coil circuit 101 is configured by the area corresponding to a plurality of first electrodes 1101 connected in series in sequence.

[0077] 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 1101. Compared with the traditional scheme that confines the communication antenna to the frame area or a small area, the communication area coverage of this scheme is set by the area corresponding to multiple first electrodes 1101 connected in series in sequence, which makes the communication area flexibly configurable. For example, increasing the number of first electrodes 1101 can increase the number of turns in the coil circuit 101, adjusting the distribution of the first electrodes 1101 can adjust the position and size of the communication area, increasing the number of first electrodes 1101 connected in parallel in each loop can reduce the impedance of the coil circuit 101, etc., which significantly improves the flexibility of the communication area and communication performance. Especially in near-field communication applications, it can have a more convenient use effect, more reliable communication performance, and a wider range of applications.

[0078] In some other embodiments, such as Figure 4 and Figure 7 As shown, the plurality of first electrodes 1101 include loop electrodes 1102 and spacer electrodes 1103. In the coil circuit 101, the first electrodes 1101 connected in series via the drive module 120 are loop electrodes 1102. The spacer electrode 1103 is a first electrode 1101 that is either suspended or grounded via the drive module 120. In the coil circuit 101, at least one spacer electrode 1103 separates two adjacent loop electrodes 1102.

[0079] During the communication phase, such as Figure 4 and Figure 7 The first electrode 1101 of the drive module 120, which is electrically connected to the central lead 130, is a loop electrode 1102. The loop electrodes 1102 are connected in series via the drive module 120 to excite an alternating magnetic field for near-field communication. And as... Figure 7 As shown, the signal-free lead 130 is currently not active. Figure 4 and Figure 7 (The text is omitted) The first electrode 1101 connected to the drive module 120 is the spacer electrode 1103. The spacer electrode 1103 is set by the drive module 120 to not participate in the coil circuit 101. Its electrical state is configured to not interfere with the magnetic field generated by the circuit electrode 1102 and to provide electromagnetic shielding, effectively reducing interference between coils and external interference.

[0080] It is understandable that if the loop electrodes 1102 are arranged adjacently, a large parasitic capacitance 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, however, a spacer electrode 1103 is arranged between two adjacent loop electrodes 1102. This allows the non-energized spacer electrode 1103 to shield the adjacent spacer electrodes 1102, thereby effectively shielding the electric field coupling between adjacent loop electrodes 1102, 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.

[0081] In one example, such as Figure 4 As shown, during the communication phase, the spacer electrode 1103 is grounded. At this time, the spacer electrode 1103 can be considered as a gap electrode, which can provide electromagnetic shielding between two adjacent loop electrodes 1102, increase the radiation of the antenna signal, and reduce the antenna signal loss.

[0082] In conjunction with any embodiment of the above-described coil circuit 101, such as Figure 8 As shown, multiple coil circuits 101 are provided, and the number and position of the first electrodes 1101 in the coil circuit 101 can be flexibly adjusted. Specifically, Figure 8 The 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 1101. Multiple coil circuits 101 are arranged sequentially at intervals along the first direction X.

[0083] 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 8 The coil circuit 101 shown in part (a) can be located at the top of the electronic device, for example... Figure 8 The coil circuit 101 shown in part (b) can be located in the middle of the electronic device, for example... Figure 8 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.

[0084] Another aspect of this application, such as Figure 9 As shown, an interactive control method is provided and applied to antenna device 100.

[0085] Interactive control methods include:

[0086] S100: In response to the communication signal, according to the set communication area, multiple first electrodes 1101 in the corresponding area are connected in series in sequence through the driving module 120 to form a coil circuit 101 for communication transmission.

[0087] 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 1101 in the corresponding region to the drive module 120 according to the set communication region, and form a coil circuit 101.

[0088] In this way, the coil circuit 101 is activated only within the designated communication area, while the first electrode 1101 in other areas remains suspended, grounded, or not connected in series. This avoids the ineffective power consumption caused by large-area excitation of the antenna device 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.

[0089] The communication signal can be, for example, a communication command from the main controller of the electrode film 10, a wake-up signal from an external communication peer, or a touch and communication mode switching signal from the antenna device 100 itself. See also... Figure 8 As shown, the communication area can be: a preset area division (such as dividing the antenna device 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.

[0090] In some embodiments, such as Figure 10 As shown, the interactive control method also includes:

[0091] S001. Determine the communication area according to the set communication mode.

[0092] The communication area refers to the range of signals that the driving module 120 can emit when it drives multiple first electrodes 1101 in series to form a coil circuit 101. Within this signal range, it can interact with the signal receiving end or the signal access end.

[0093] S002. Determine whether the communication mode is static mode.

[0094] If the communication mode is static, the communication area is set to a fixed area set by the system.

[0095] If the communication mode is dynamic, the communication area is set to a variable area set by the system.

[0096] The variable area set by the system can be either user-defined or automatically identified by the system.

[0097] 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.

[0098] 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.

[0099] In some other embodiments, such as Figure 11 As shown, the interactive control method also includes:

[0100] 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 be the same as the application scenario area.

[0101] 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. Obtaining the application scenario area based on the signal can be achieved by parsing the signal to find matching region configuration information in a database, and then setting the communication area to the corresponding application scenario area based on this information. Alternatively, obtaining the application scenario area can involve parsing the frequency bands involved in the signal and calculating the required application scenario area based on the frequency bands and radiation range.

[0102] Specifically, in one example, the corresponding application scenario region can be determined by parsing the region identifier carried in the application scenario signal and using a preset region mapping table. In another example, the boundary of the application scenario region can be directly determined by parsing the coordinate parameters in the application scenario signal.

[0103] In one example scenario, when a payment signal is received, the communication area can be set in the payment code display area, or in a side position near the antenna device 100, etc. In another example scenario, when a multi-user interaction 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.

[0104] 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.

[0105] In some embodiments, such as Figure 12 As shown, the interactive control method also includes:

[0106] S200. During the communication transmission process, acquire the signal parameters of the communication transmission.

[0107] 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.

[0108] S300: Dynamically adjust the number of first electrodes 1101 participating in forming coil circuit 101 and / or adjust the distribution position of the first electrodes 1101 participating in forming coil circuit 101 according to signal parameters, so as to adjust the signal strength and / or communication area of ​​communication transmission.

[0109] It is understandable that adjusting the number of first electrodes 1101 participating in forming the coil loop 101 (for example, expanding the number of first electrodes 1101 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 1101 participating in forming the coil loop 101 reduces the communication area and lowers the overall power consumption.

[0110] By altering the spatial distribution of the first electrodes 1101 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 1101, establishing a clean communication link in a new spatial area, thereby improving the system's anti-interference capability.

[0111] In one example, dynamically adjusting the number and / or area of ​​the first electrodes 1101 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.

[0112] Alternatively, in one embodiment, such as Figure 13 As shown, step S300 above includes:

[0113] S310. Determine whether the signal parameters are lower than the preset threshold.

[0114] When the signal parameters are lower than a preset threshold, the number of first electrodes 1101 participating in forming the coil circuit 101 is increased, or the boundary region formed by the first electrodes 1101 participating in forming the coil circuit 101 is expanded, or the position of the region formed by the first electrodes 1101 participating in forming the coil circuit 101 is moved, until the signal parameters meet the preset threshold.

[0115] When the signal parameter is greater than or equal to the preset threshold, the communication transmission command is executed.

[0116] 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 1101 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 1101 participating in forming the coil loop 101 is achieved by changing the position of the first electrodes 1101 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.

[0117] The above embodiments merely illustrate 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. An antenna device, characterized by include: An electrode module includes a plurality of first electrodes arranged in parallel along a first direction. The first electrode is provided with a first end and a second end opposite to each other, the first end and the second end are spaced apart along a second direction, and the second direction intersects the first direction; A driving module, wherein the first end and the second end are each electrically connected to the driving module via leads, and the driving module is used to drive the electrode module for communication transmission; wherein at least two of the first electrodes are connected in series via the driving module to form a coil circuit for communication transmission.

2. The antenna device according to claim 1, characterized in that, The coil circuit includes at least two first electrodes, wherein, along the circuit direction of the coil circuit, two adjacent first electrodes in the coil circuit are connected in pairs, with the first end of one first electrode and the second end of the other first electrode connected in pairs via the driving module.

3. The antenna device according to claim 2, characterized in that, The drive module and the electrode module are spaced apart along the first direction.

4. The antenna device according to claim 2, characterized in that, The drive module and the electrode module are spaced apart along the second direction.

5. The antenna device according to claim 4, characterized in that, The portion of the lead electrically connected to the second end is located on at least one of the two sides of the first electrode that are opposite each other along the first direction.

6. The antenna device according to claim 5, characterized in that, Within the coil circuit, all leads electrically connected to the second end are routed through the first electrode to the drive module along one side opposite to the first direction; Alternatively, at least three first electrodes for forming the coil circuit are arranged sequentially to form an electrode array group; within the coil circuit, the number of electrode array groups is set to two, namely a first array group and a second array group; all leads in the first array group that are electrically connected to the second end are routed through the first electrode along the first direction to the drive module; all leads in the second array group that are electrically connected to the second end are routed through the first electrode along the second direction to the drive module.

7. The antenna device 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 antenna device 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. And / or, the plurality of first electrodes include a loop electrode and a spacer electrode; in the coil loop, the loop electrode is a first electrode that is sequentially connected via the drive module; the spacer electrode is a first electrode that is suspended or grounded via the drive module; in the coil loop, at least one spacer electrode is spaced between two adjacent loop electrodes.

9. An electrode film, characterized in that, It includes the antenna device and substrate as described in any one of claims 1 to 8; the electrode module of the antenna device is disposed on the substrate.

10. An interactive control method, characterized in that, Applied to the antenna device as described in any one of claims 1 to 8 or the electrode film as described in claim 9; 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.

11. The interactive control method according to claim 10, 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 is either user-defined or automatically identified by the system.

12. The interactive control method according to claim 10, 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.

13. The interactive control method according to claim 10, characterized in that, The interactive control method further includes: During communication transmission, acquire the signal parameters of the communication transmission; The number and / or area of ​​the first electrode participating in forming the coil circuit are dynamically adjusted according to the signal parameters to adjust the signal strength and / or communication area of ​​the communication transmission.

14. The interactive control method according to claim 13, characterized in that, The step of dynamically adjusting the number and / or region 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.

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