Near field communication module, control method, touch panel, touchpad and electronic equipment

Abstract

The invention relates to a near-field communication module, a control method, a touch panel, a touch pad and electronic equipment, the near-field communication module comprises at least one communication unit, the communication unit comprises at least one near-field communication coil and a liquid crystal layer, the at least one near-field communication coil and the liquid crystal layer are arranged in the thickness direction of the liquid crystal layer, and the liquid crystal layer is configured in a manner that the near-field communication coil is arranged in the thickness direction of the liquid crystal layer. When the liquid crystal rotates, the magnetic field of the corresponding near field communication coil can be changed. Therefore, the direction and the strength of the magnetic field of the corresponding near field communication coil are changed through rotation of the liquid crystal, so that the recognition direction and the recognition distance of the near field communication coil are adjustable, the use flexibility of near field communication is effectively improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic devices, and in particular to a near field communication module and control method, a touch panel, a touch pad, and an electronic device. Background Art

[0002] With the development of communication technology, the use of Near Field Communication (NFC) functions in electronic devices such as mobile phones is becoming more and more common, for example, file transfer between terminals can be achieved through NFC. However, the current technical solutions for implementing NFC functions cannot adjust parameters such as recognition distance and recognition direction, resulting in low flexibility in the use of NFC, which affects the user experience. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a near field communication module and control method, a touch panel, a touch pad, and an electronic device.

[0004] According to a first aspect of the present disclosure, a near field communication module is provided, the near field communication module comprising at least one communication unit, the communication unit comprising: at least one near field communication coil; a liquid crystal layer, the at least one near field communication coil and the liquid crystal layer are arranged along a thickness direction of the liquid crystal layer, the liquid crystal layer is configured to change a magnetic field corresponding to the near field communication coil when the liquid crystal rotates.

[0005] In some embodiments of the present disclosure, the liquid crystal layer includes a first surface, and in the same communication unit, the near-field communication coil is stacked with the liquid crystal layer, the liquid crystal layer includes a first surface and a second surface opposite to each other along the thickness direction of the liquid crystal layer, and the orthographic projection of the near-field communication coil on the plane where the first surface is located is located within the first surface.

[0006] In some embodiments of the present disclosure, the liquid crystal layer includes a first substrate and a second substrate stacked together and a liquid crystal located between the first substrate and the second substrate, the outer surface of the first substrate constitutes the first surface, the first electrode layer is arranged on the inner surface of the first substrate, the outer surface of the second substrate constitutes the second surface, and the second electrode layer is arranged on the inner surface of the second substrate.

[0007] In some embodiments of the present disclosure, the near field communication coil is disposed on the first surface.

[0008] In some embodiments of the present disclosure, an orthographic projection of the near field communication coil on the first electrode layer is located within the first electrode layer.

[0009] In some embodiments of the present disclosure, a plurality of the communication units are provided, and the plurality of the communication units are arranged side by side.

[0010] In some embodiments of the present disclosure, the near field communication module further includes a liquid crystal driving unit, and the liquid crystal driving unit is used to drive the liquid crystal in each of the liquid crystal layers to rotate.

[0011] According to a second aspect of the present disclosure, a communication control method is provided, which includes: turning on a near field communication module in response to a first preset operation of a user; controlling the rotation of a liquid crystal in a liquid crystal layer in at least one of the communication units so that the near field communication module sends a first communication signal.

[0012] In some embodiments of the present disclosure, controlling the rotation of liquid crystal in a liquid crystal layer in at least one of the communication units includes: determining voltage information corresponding to each of the communication units; and controlling a liquid crystal driving unit of each of the communication units to drive the liquid crystal in the liquid crystal layer to rotate with the corresponding voltage information.

[0013] In some embodiments of the present disclosure, the communication control method further includes: in response to a second preset operation of a user, modifying voltage information corresponding to each of the communication units.

[0014] In some embodiments of the present disclosure, modifying the voltage information corresponding to each of the communication units in response to a second preset operation of the user includes: determining the communication center location selected by the user in response to a location selection operation of the user; and determining the modified voltage information corresponding to each of the communication units based on the communication center location.

[0015] In some embodiments of the present disclosure, modifying the voltage information corresponding to each of the communication units in response to a second preset operation of the user includes: determining the sensing direction selected by the user in response to a sensing direction selection operation of the user; and determining the modified voltage information corresponding to each of the communication units based on the sensing direction.

[0016] In some embodiments of the present disclosure, the communication control method further includes: acquiring voltage change information of each of the communication units in response to receiving a second communication signal sent by the master device; and determining location information of the master device based on the voltage change information.

[0017] In some embodiments of the present disclosure, determining the location information of the main device based on the voltage change information includes: comparing the voltage change information of each of the communication units to determine the relative position of the near-field communication module and the main device in a direction parallel to the first surface of the near-field communication module; and / or determining the distance between the near-field communication module and the main device based on the voltage change information of each of the communication units and preset configuration information, the preset configuration information being used to characterize the correspondence between voltage change and distance.

[0018] According to a third aspect of the present disclosure, a touch panel is provided, wherein the touch panel includes the near field communication module as described above.

[0019] According to a fourth aspect of the present disclosure, a touch panel is provided, comprising the near field communication module as described above.

[0020] According to a fifth aspect of the present disclosure, an electronic device is provided, which includes a touch panel as described above or a touch pad as described above, and / or the electronic device includes a processor and a memory for storing processor executable instructions, wherein the processor is configured to execute the communication control method provided in the second aspect of the present disclosure.

[0021] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0022] The near field communication module provided by the present disclosure includes at least one communication unit, and the communication unit includes at least one near field communication coil and a liquid crystal layer, and the liquid crystal layer is configured to change the magnetic field of the corresponding near field communication coil when the liquid crystal rotates. In this way, the direction and intensity of the magnetic field of the corresponding near field communication coil are changed by the rotation of the liquid crystal, so that the recognition direction and recognition distance of the near field communication coil can be adjusted, and the flexibility of the use of near field communication is effectively improved, and the user experience is improved.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0025] Figure 1 It is a schematic diagram of the structure of a touch panel of an electronic device in the related art;

[0026] Figure 2 is a schematic diagram showing a structural connection relationship of an electronic device according to an exemplary embodiment;

[0027] Figure 3 is a schematic structural diagram of an electronic device according to an exemplary embodiment;

[0028] Figure 4 is a schematic structural diagram of an electronic device according to another exemplary embodiment;

[0029] Figure 5 is a flow chart of a communication control method according to an exemplary embodiment;

[0030] Figure 6 is a flow chart of a communication control method according to another exemplary embodiment;

[0031] Figure 7 is a flow chart of a communication control method according to yet another exemplary embodiment;

[0032] Figure 8 is a block diagram of a communication control device according to an exemplary embodiment;

[0033] Fig. 9 is a block diagram of a communication control device according to another exemplary embodiment.

[0034] In the figure:

[0035] 1-electronic device; 11-touch panel; 12-near field communication module; 121-communication unit; 1211-first communication unit; 1212-second communication unit; 1213-third communication unit; 1214-fourth communication unit; 1215-near field communication coil; 1216-liquid crystal layer; 1217-ferrite film; 13-liquid crystal driving unit; 14-controller; 100-receiving module; 200-control module; 300-acquisition module; 400-second determination module. DETAILED DESCRIPTION

[0036] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0037] With the development of communication technology, the use of near field communication (NFC) functions in electronic devices such as mobile phones is becoming more and more common. For example, the NFC function is used to transfer files between terminals. Figure 1As shown, a near field communication module 12 is arranged in the touch panel 11 of the electronic device, and the near field communication module 12 includes a ferrite film 1217 and a near field communication coil 1215 arranged on the ferrite film 1217. The near field communication coil 1215 is used to transmit a communication signal. The ferrite film 1217 plays a magnetic isolation role on the one hand, which is used to achieve isolation between the coil and other magnetic fields, and on the other hand, it can enhance the directivity and signal strength of the communication signal emitted by the near field communication coil 1215. In the near field communication scheme in the related art as described above, the recognition area is fixed. At the same time, since the dielectric constant of the ferrite film 1217 is a fixed value, its influence on the magnetic field generated by the near field communication coil 1215 is fixed, so that the direction and strength of the signal emitted by the near field communication coil 1215 are also fixed, so the recognition area, recognition distance and recognition direction of the near field communication cannot be adjusted, resulting in low flexibility in the use of near field communication, which affects the user experience.

[0038] In order to solve the above technical problems, the present disclosure provides a near field communication module. The near field communication module provided by the present disclosure includes at least one communication unit, and the communication unit includes at least one near field communication coil and a liquid crystal layer, and the liquid crystal layer is configured to change the magnetic field of the corresponding near field communication coil when the liquid crystal rotates. In this way, the direction and intensity of the magnetic field of the corresponding near field communication coil are changed by the rotation of the liquid crystal, so that the recognition direction and recognition distance of the near field communication coil can be adjusted, and the flexibility of the use of near field communication is effectively improved, and the user experience is improved.

[0039] An exemplary embodiment of the present disclosure provides a near field communication module, such as Figure 2As shown, the near field communication module 12 includes at least one communication unit 121, each communication unit 121 includes at least one near field communication coil 1215 and a liquid crystal layer 1216, at least one near field communication coil 1215 and the liquid crystal layer 1216 are arranged along the thickness direction of the liquid crystal layer 121, for example, the liquid crystal layer 121 includes a first surface and a second surface arranged opposite to each other in the thickness direction, and each near field communication coil 1215 is arranged on the first surface, and for another example, in the thickness direction of the liquid crystal layer 121, each near field communication coil 1215 is arranged with a gap between the liquid crystal layer 1216. The liquid crystal layer 1216 is configured to change the magnetic field of the corresponding near field communication coil 1215 when the liquid crystal rotates. Exemplarily, the communication unit 121 can be provided with one or more. When only one communication unit 121 is provided, the direction and strength of the magnetic field of the corresponding near field communication coil 1215 are changed by the rotation of the liquid crystal, so that the recognition direction and recognition distance of the near field communication coil 1215 can be adjusted. Exemplarily, the rotation of the liquid crystal can be achieved by applying different voltages to the liquid crystal layer 1216 to change the dielectric constant of the liquid crystal layer 1216, thereby changing the effect on the magnetic field. For example, the different dielectric constants of the liquid crystal layer 1216 can control the amount of transmitted signals. When the amount of transmitted signals is greater, the emitted signal strength is stronger and the identification distance is farther. When the amount of blocked signals is greater, the emitted signal strength is weaker and the identification distance is closer. At the same time, the deflection angle of the liquid crystal can also adjust the direction of signal transmission, thereby adjusting the identification direction of near field communication.

[0040] When the near field communication module 12 is provided with a plurality of communication units 121, it is not only possible to adjust the recognition direction and recognition distance of the near field communication coil 1215, but also possible to adjust the size of the recognition area by adjusting the rotation of the liquid crystal in the liquid crystal layer 1216 as required. The number of communication units 121 can be, for example, Figure 3 The three shown can also be Figure 4 There are 4 shown, and no specific limitation is made in this embodiment. Figure 2As shown, the near field communication module 12 is provided with four communication units 121, namely, the first communication unit 1211, the second communication unit 1212, the third communication unit 1213 and the fourth communication unit 1214. The first communication unit 1211 is located at the first side of the second communication unit 1212, the fourth communication unit 1214 is located at the second side of the second communication unit 1212 adjacent to the first side, and the two sides adjacent to the third communication unit 1213 are respectively opposite to the first communication unit 1211 and the fourth communication unit 1214, so that the four communication units 121 are respectively located at the four corners of the rectangular touch panel 11. The adjustment of the recognition area is achieved by energizing each communication unit 121 separately. For example, if only the first communication unit 1211 is energized, the recognition area of ​​the near field communication is the area corresponding to the first communication unit 1211; if the first communication unit 1211 and the second communication unit 1212 are energized, the recognition area of ​​the near field communication is the area corresponding to the first communication unit 1211 and the second communication unit 1212. In this way, the size of the recognition area can be increased or decreased according to demand, and as the number of communication units 121 increases, the control of the recognition area becomes more precise.

[0041] In this embodiment, by setting a liquid crystal layer 1216, the liquid crystal in the liquid crystal layer 1216 can be rotated to adjust the recognition direction, recognition distance and recognition area of ​​near field communication, thereby effectively improving the flexibility of use of near field communication and enhancing the user experience.

[0042] In one embodiment, the liquid crystal layer 1216 includes a first surface and a second surface opposite to each other along the thickness direction of the liquid crystal layer 1216. In the same communication unit 121, the near field communication coil 1215 is stacked with the liquid crystal layer 1216, and the orthographic projection of the near field communication coil 1215 on the plane where the first surface is located is located within the first surface. Exemplarily, the near field communication coil 1215 is located on the side of the liquid crystal layer 1216 away from the second surface, for example, the near field communication coil 1215 is arranged on the first surface, and for another example, along the thickness direction of the liquid crystal layer 1216, there is a certain distance between the near field communication coil 1215 and the first surface. Such a design can improve the comprehensiveness of the liquid crystal layer 1216 to control the magnetic field generated by the near field communication coil 1215, thereby improving the control effect of the magnetic field. In some other embodiments, the orthographic projection of the near field communication coil 1215 on the plane where the first surface is located may also partially overlap with the first surface of the liquid crystal layer 1216, or be located outside the first surface of the liquid crystal layer 1216.

[0043] In one embodiment, the liquid crystal layer 1216 is a first substrate and a second substrate stacked and a liquid crystal located between the first substrate and the second substrate. The first substrate and the second substrate may be, for example, glass plates. Since the liquid crystal has fluidity, a sealed cavity for accommodating the liquid crystal is formed between the first substrate and the second substrate, and the liquid crystal is filled in the sealed cavity. The outer surface of the first substrate constitutes the first surface, and a first electrode layer is arranged on the inner surface of the first substrate. The outer surface of the second substrate constitutes the second surface, and a second electrode layer is arranged on the inner surface of the second substrate. By applying voltage to the first electrode layer and the second electrode layer, an electric field is formed between the first electrode layer and the second electrode layer, and the electric field can affect the deflection angle of the liquid crystal. By applying different voltages to adjust the deflection angle of the liquid crystal, the magnetic field of the corresponding near field communication coil 1215 is changed, thereby adjusting the recognition direction and the recognition distance, and improving the flexibility of use of near field communication.

[0044] In one embodiment, the near field communication coil 1215 is disposed on the first surface, for example, the near field communication coil 1215 can be disposed on the first surface by bonding. With such a configuration, the near field communication coil 1215 is fixed while preventing the near field communication coil 1215 from affecting the normal use of the liquid crystal layer 1216, thereby improving the control effect of the magnetic field generated by the near field communication coil 1215.

[0045] In one embodiment, the orthographic projection of the near field communication coil 1215 on the first electrode layer is located within the first electrode layer. Such a design can further improve the control effect of the liquid crystal layer 1216 on the magnetic field generated by the near field communication coil 1215 .

[0046] In one embodiment, if Figure 2 As shown, a plurality of communication units 121 are provided, and the plurality of communication units 121 are arranged side by side. With such a design, by controlling the communication signals of each communication unit 121 respectively, the recognition area of ​​the near field communication coil 1215 can be adjusted, thereby improving the flexibility of using the near field communication coil 1215. In one embodiment, the plurality of communication units 121 are coplanar, for example, Figure 2 As shown, four communication units 121 are arranged on the same plane. Such an arrangement can effectively improve the consistency control of the recognition distance, recognition strength, etc. of each communication unit 121.

[0047] Continue to refer Figure 2 In one embodiment, the near field communication module 12 further includes a liquid crystal driving unit 13, and the liquid crystal driving unit 13 is used to drive the liquid crystals in each liquid crystal layer 1216 to rotate. By setting the liquid crystal driving unit 13 to drive the liquid crystals in each liquid crystal layer 1216 to rotate, the accuracy and convenience of magnetic field control can be effectively improved, thereby improving the user experience.

[0048] An exemplary embodiment of the present disclosure provides a communication control method. The near field communication module may, for example, adopt the structure as described in the previous embodiments. The control method may, for example, be applied to a controller connected to the near field communication module on an electronic device. The electronic device may, for example, be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. It may also be an electronic device with NFC function, such as a personal computer (PC), a television (TV), a teller machine, or an automatic machine, etc., which are non-mobile devices.

[0049] like Figure 5 As shown, the communication control method includes the following steps:

[0050] S100: In response to a first preset operation of the user, turn on the near field communication module.

[0051] In this step, the near field communication module 12 is turned on in response to a first preset operation of the user, for example, it may be turned on or the NFC function on the electronic device 1 , so as to realize the turning on of the near field communication module 12 .

[0052] S200, controlling the liquid crystal of the liquid crystal layer in at least one communication unit to rotate, so that the near field communication module sends a first communication signal.

[0053] In this step, the liquid crystal in the liquid crystal layer 1216 in the communication unit 121 is controlled to rotate. Exemplarily, the liquid crystal layer 1216 includes a first substrate and a second substrate stacked and a liquid crystal between the first substrate and the second substrate. The first substrate and the second substrate can be, for example, a glass plate. Since the liquid crystal has fluidity, the first substrate and the second substrate form a sealed cavity for accommodating the liquid crystal, and the liquid crystal is filled in the sealed cavity. A first electrode layer is arranged on the inner surface of the first substrate, and a second electrode layer is arranged on the inner surface of the second substrate. By applying voltage to the first electrode layer and the second electrode layer, an electric field is formed between the first electrode layer and the second electrode layer, and the electric field can affect the deflection angle of the liquid crystal. By applying different voltages to adjust the deflection angle of the liquid crystal, the magnetic field of the corresponding near field communication coil 1215 can be changed, thereby realizing the adjustment of the recognition direction and recognition distance of the communication signal. Under the influence of the liquid crystal layer 1216, the near field communication module 12 sends a first communication signal.

[0054] In this embodiment, the direction and strength of the magnetic field of the corresponding near-field communication coil 1215 are changed by rotating the liquid crystal, so that the recognition direction and recognition distance of the near-field communication coil 1215 are adjustable, thereby effectively improving the flexibility of near-field communication and enhancing the user experience.

[0055] In one embodiment, if Figure 6 As shown, controlling the rotation of the liquid crystal of the liquid crystal layer in at least one communication unit in step S200 specifically includes the following steps:

[0056] S210: Determine voltage information corresponding to each communication unit.

[0057] Before controlling the rotation of the liquid crystal, it is necessary to first determine the voltage information corresponding to each communication unit 121. The voltage information can, for example, receive the voltage information set by the user according to the needs, or it can be the voltage information set at the factory. In this step, the deflection angle of the liquid crystal can be changed by applying different voltages to the communication unit 121, thereby changing the magnetic field of the near-field communication coil 1215 corresponding to the communication unit 121 to adjust the signal strength and direction of the first communication signal. In one embodiment, a plurality of control modes can be set in the controller, each of which corresponds to different voltage information. The user can select the corresponding control mode according to the needs, and then determine the voltage information corresponding to the control mode. Exemplary, preset configuration information is set in the controller, and the preset configuration information represents the correspondence between the control mode and the voltage information. When the user selects a control mode, the corresponding voltage information can be determined according to the control mode and the preset configuration information.

[0058] S220 , controlling the liquid crystal driving unit of each communication unit to drive the liquid crystal in the liquid crystal layer to rotate with corresponding voltage information.

[0059] In this step, the dielectric constant of the liquid crystal layer 1216 is driven by the corresponding voltage information, thereby changing the influence on the magnetic field. For example, different dielectric constants of the liquid crystal layer 1216 correspond to different liquid crystal deflection angles, and different liquid crystal deflection angles correspond to different signal transmission amounts. When the amount of transmitted signal is greater, the emitted signal strength is stronger and the identification distance is farther. When the amount of blocked signal is greater, the emitted signal strength is weaker and the identification distance is closer. At the same time, the deflection angle of the liquid crystal can also adjust the direction of signal transmission, thereby adjusting the identification direction of near field communication.

[0060] In this embodiment, the voltage information corresponding to each communication unit 121 is first determined, and the liquid crystal in the liquid crystal layer 1216 is driven to rotate by the corresponding voltage information, which can effectively improve the accuracy of magnetic field control, thereby improving the regulation effect of the communication signal.

[0061] In one embodiment, the communication control method further includes the following steps:

[0062] In response to a second preset operation of the user, voltage information corresponding to each communication unit is modified.

[0063] In this step, the user's second preset operation may be, for example, a click operation on the interface of the electronic device 1. By way of example, the electronic device 1 is provided with a simulation interface for adjusting the control mode. The simulation interface displays controls for adjusting different control modes such as communication signal strength and direction. Different controls on the interface may be clicked as needed to select the corresponding control mode, and then the voltage information corresponding to each communication unit may be modified according to the selected control mode.

[0064] In this embodiment, the user can perform a second preset operation according to actual needs, and then modify the voltage information corresponding to each communication unit 121 according to the user's second preset operation, thereby adjusting the communication signal, which can effectively improve the flexibility of using near-field communication, thereby improving the user experience.

[0065] In one embodiment, in response to the second preset operation of the user, modifying the voltage information corresponding to each communication unit may be determined in the following manner:

[0066] In response to a location selection operation by a user, a communication center location selected by the user is determined.

[0067] Based on the communication center position, the modified voltage information corresponding to each communication unit is determined.

[0068] In this step, the user's position selection operation can be, for example, a point selection operation performed on the interface of the electronic device 1. For example, a simulated screen that can represent the near field communication module is displayed on the interface of the electronic device, and the user can select different positions in the simulated screen according to needs, and the position selected by the user is used as the communication center position. It is also possible that controls representing different communication center positions are set on the electronic device 1, and the user can select the corresponding control according to needs. The communication center position can be, for example, the geometric center of the area used to communicate with the main device.

[0069] When the communication center position is determined, the modified voltage information corresponding to each communication unit can be determined according to the communication center position. Figure 2 Taking the illustrated embodiment as an example, when the user selects the upper left corner as the communication center position, the near field communication coil 1215 of the first communication unit 1211 at the upper left corner may be energized, while other near field communication coils 1215 are not energized.

[0070] In this embodiment, the modified voltage information corresponding to each communication unit 121 is determined according to the user's position selection operation, so that the communication signal recognition area can be adjusted, and the size of the recognition area can be increased or decreased according to needs, thereby effectively improving the flexibility of use of the near-field communication recognition area.

[0071] In one embodiment, in response to the second preset operation of the user, modifying the voltage information corresponding to each communication unit may be determined in the following manner:

[0072] In response to a sensing direction selection operation by a user, a sensing direction selected by the user is determined.

[0073] Based on the sensing direction, the modified voltage information corresponding to each communication unit is determined.

[0074] In this step, the sensing direction selected by the user is determined in response to the user's sensing direction selection operation. For example, the sensing direction selected by the user can be determined by clicking on the interface of the electronic device 11. For example, the electronic device 1 is provided with controls representing different directions, and the user can select the corresponding control according to the needs, thereby determining the sensing direction selected by the user. Alternatively, a simulated screen that can represent the near field communication module can be displayed on the interface of the electronic device, and the user can perform a sliding gesture operation in the desired direction on the simulated screen according to the needs, thereby determining the sensing direction selected by the user.

[0075] In this embodiment, the modified voltage information corresponding to each communication unit 121 is determined according to the user's sensing direction selection operation, so that the communication signal recognition direction can be adjusted, thereby effectively improving the flexibility of using the near field communication recognition direction.

[0076] In one embodiment, if Figure 7 As shown, the communication control method also includes the following steps:

[0077] S300 . In response to receiving a second communication signal sent by the master device, obtaining voltage change information of each communication unit.

[0078] The near field communication module 12 can not only send signals, but also receive signals. When receiving the second communication signal sent by the host device, the near field communication coil 1215 of each communication unit 121 will reversely affect the deflection of the liquid crystal, thereby reversely generating voltage change information. For the communication units 121 at different positions, the generated voltage change information can be the same or different.

[0079] S400: Determine location information of the master device based on voltage change information.

[0080] In this step, the location information of the master device can be determined based on the voltage change information. For example, Figure 2 As shown, after receiving the second communication signal sent by the main device, the voltage change value generated by the first communication unit 1211 is greater than the voltage change values ​​generated by other communication units 121, then it is determined that the position of the main device is located at the first communication unit 1211, or compared with other communication units 121, the main device is closest to the first communication unit 1211.

[0081] In this embodiment, after receiving the second communication signal sent by the master device, the location information of the master device can be determined by acquiring the voltage change information of each communication unit 121, thereby realizing the detection of the location of the master device.

[0082] In one embodiment, the location information of the master device may be determined based on the voltage change information in step S400 in the following manner:

[0083] The voltage change information of each communication unit is compared to determine the relative position of the near field communication module and the host device in a direction parallel to the first surface of the near field communication module.

[0084] In this step, the voltage change information of each communication unit 121 is compared, for example, the voltage change value of each communication unit 121 is compared. After comparing all the communication units 121 that have generated voltage changes, the communication unit 121 with a larger voltage change value indicates that it is closer to the main device. For example, Figure 2 As shown, after receiving the second communication signal sent by the master device, by comparing the changes in the voltage values ​​of each communication unit 121, for example, it is obtained that the voltage change value generated by the first communication unit 1211 is greater than the voltage change values ​​generated by other communication units 121, then it can be determined that in the direction parallel to the first surface of the communication module, the relative position of the near field communication module 12 and the master device is closer to the first communication unit 1211. Alternatively, after receiving the second communication signal sent by the master device, by comparing the changes in the voltage values ​​of each communication unit 121, for example, it is obtained that the voltage change values ​​generated by the first communication unit 1211 and the second communication unit 1212 are equal and greater than the third communication unit 1213 and the fourth communication unit 1214, then it can be determined that in the direction parallel to the first surface of the communication module, the master device is located between the first communication unit 1211 and the second communication unit 1212.

[0085] In this embodiment, after receiving the second communication signal sent by the main device, the relative position of the near field communication module 12 and the main device can be determined by comparing the voltage change information of each communication unit 121, thereby realizing the detection of the position of the main device.

[0086] In another embodiment, the location information of the master device is determined based on the voltage change information in step S400 by:

[0087] Based on the voltage change information of each communication unit and the preset configuration information, the distance between the near field communication module and the main device is determined, and the preset configuration information is used to characterize the corresponding relationship between the voltage change and the distance.

[0088] When determining the distance, the median of the voltage change values ​​may be selected from the voltage change information of each communication unit, and the distance corresponding to the median in the preset configuration information may be determined as the distance between the near field communication module and the main device. The preset configuration information may also be queried according to the voltage change information of each communication unit to obtain the distance corresponding to the voltage change information of each communication unit, and the median or mean of these distances may be taken as the distance between the near field communication module and the main device.

[0089] In this embodiment, preset configuration information of the correspondence between voltage change and distance can be pre-stored. After the second communication signal sent by the main device is received and converted, the distance between the near-field communication module 12 and the main device can be determined based on the voltage change information of each communication unit 121 and the preset configuration information, thereby effectively improving the detection efficiency of the main device position.

[0090] An exemplary embodiment of the present disclosure provides a communication control device, which can be applied to an electronic device to implement the above method. Figure 8 As shown, the control device may include a receiving module 100 and a control module 200, wherein, in the process of implementing the above method,

[0091] The receiving module 100 is configured to activate the near field communication module in response to a first preset operation of the user;

[0092] The control module 200 is configured to control the rotation of liquid crystal in the liquid crystal layer in at least one communication unit so that the near field communication module sends a first communication signal.

[0093] In an exemplary embodiment, a communication control device is provided, in which a control module 200 is configured to:

[0094] Determine voltage information corresponding to each communication unit;

[0095] The liquid crystal driving section of each communication unit is controlled to drive the liquid crystal in the liquid crystal layer to rotate according to the corresponding voltage information.

[0096] In an exemplary embodiment, a communication control device is provided, the device further comprising:

[0097] The first determining module is configured to modify the voltage information corresponding to each communication unit in response to a second preset operation of the user.

[0098] In an exemplary embodiment, a communication control device is provided, in which a first determination module is configured to:

[0099] In response to a location selection operation by a user, determining a communication center location selected by the user;

[0100] Based on the communication center position, the modified voltage information corresponding to each communication unit is determined.

[0101] In another exemplary embodiment, a communication control device is provided, in which a first determining module is configured to:

[0102] In response to a sensing direction selection operation by a user, determining a sensing direction selected by the user;

[0103] Based on the sensing direction, the modified voltage information corresponding to each communication unit is determined.

[0104] like Fig. 9 As shown, in an exemplary embodiment, a communication control device is provided, the device also includes:

[0105] The acquisition module 300 is configured to acquire voltage change information of each communication unit in response to receiving a second communication signal sent by the master device;

[0106] The second determination module 400 is configured to determine the location information of the master device based on the voltage change information.

[0107] In an exemplary embodiment, a communication control device is provided, in which the second determination module 400 is configured to:

[0108] The voltage change information of each communication unit is compared to determine the relative position of the near field communication module and the host device in a direction parallel to the first surface of the near field communication module.

[0109] In another exemplary embodiment, a communication control device is provided, in which the second determination module 400 is configured to:

[0110] Based on the voltage change information of each communication unit and the preset configuration information, the distance between the near field communication module and the main device is determined, and the preset configuration information is used to characterize the corresponding relationship between the voltage change and the distance.

[0111] An exemplary embodiment of the present disclosure provides a touch panel. Exemplarily, the touch panel is used to constitute a touch screen of an electronic device, and the electronic device may be, for example, a tablet computer, a display, etc. The touch panel includes the near field communication module 12 as described above. The near field communication module 12 includes at least one communication unit 121, each communication unit 121 includes at least one near field communication coil 1215 and a liquid crystal layer 1216, at least one near field communication coil 1215 and the liquid crystal layer 1216 are arranged along the thickness direction of the liquid crystal layer 121, and the liquid crystal layer 1216 is configured to change the magnetic field of the corresponding near field communication coil 1215 when the liquid crystal rotates. Exemplarily, the communication unit 121 may be provided with one or more. When only one communication unit 121 is provided, the direction and intensity of the magnetic field of the corresponding near field communication coil 1215 are changed by the rotation of the liquid crystal, so that the recognition direction and recognition distance of the near field communication coil 1215 are adjustable. Exemplarily, the rotation of the liquid crystal may, for example, change the dielectric constant of the liquid crystal layer 1216 by applying different voltages to the liquid crystal layer 1216, thereby changing the influence on the magnetic field. For example, different dielectric constants of the liquid crystal layer 1216 can control the amount of transmitted signals. When the amount of transmitted signals is greater, the emitted signal strength is stronger and the identification distance is farther. When the amount of blocked signals is greater, the emitted signal strength is weaker and the identification distance is closer. At the same time, the deflection angle of the liquid crystal can also adjust the direction of signal transmission, thereby adjusting the identification direction of near field communication.

[0112] When the near field communication module 12 is provided with a plurality of communication units 121, not only can the recognition direction and recognition distance of the near field communication coil 1215 be adjusted, but also the size of the recognition area can be adjusted according to the demand by adjusting the rotation of the liquid crystal in the liquid crystal layer 1216. As the number of communication units 121 increases, the control of the recognition area becomes more precise.

[0113] In this embodiment, by setting a liquid crystal layer 1216, the liquid crystal in the liquid crystal layer 1216 can be rotated to adjust the recognition direction, recognition distance and recognition area of ​​near field communication, thereby effectively improving the flexibility of use of near field communication and enhancing the user experience.

[0114] An exemplary embodiment of the present disclosure provides a touch panel 11. For example, the touch panel 11 is disposed on an electronic device such as a notebook computer. Figure 2As shown, the touch panel 11 includes the near field communication module 12 as described above, and the near field communication module 12 includes at least one communication unit 121, each communication unit 121 includes at least one near field communication coil 1215 and a liquid crystal layer 1216, and at least one near field communication coil 1215 and the liquid crystal layer 1216 are arranged along the thickness direction of the liquid crystal layer 121, and the liquid crystal layer 1216 is configured to change the magnetic field of the corresponding near field communication coil 1215 when the liquid crystal rotates. Exemplarily, the communication unit 121 can be provided with one or more, and when only one communication unit 121 is provided, the direction and intensity of the magnetic field of the corresponding near field communication coil 1215 are changed by the rotation of the liquid crystal, so that the recognition direction and recognition distance of the near field communication coil 1215 are adjustable. Exemplarily, the rotation of the liquid crystal can, for example, change the dielectric constant of the liquid crystal layer 1216 by applying different voltages to the liquid crystal layer 1216, thereby changing the influence on the magnetic field. For example, different dielectric constants of the liquid crystal layer 1216 can control the amount of transmitted signals. When the amount of transmitted signals is greater, the emitted signal strength is stronger and the identification distance is farther. When the amount of blocked signals is greater, the emitted signal strength is weaker and the identification distance is closer. At the same time, the deflection angle of the liquid crystal can also adjust the direction of signal emission, thereby adjusting the identification direction of near-field communication.

[0115] When the near field communication module 12 is provided with a plurality of communication units 121, not only can the recognition direction and recognition distance of the near field communication coil 1215 be adjusted, but also the size of the recognition area can be adjusted according to the demand by adjusting the rotation of the liquid crystal in the liquid crystal layer 1216. As the number of communication units 121 increases, the control of the recognition area becomes more precise.

[0116] In this embodiment, by setting a liquid crystal layer 1216, the liquid crystal in the liquid crystal layer 1216 can be rotated to adjust the recognition direction, recognition distance and recognition area of ​​near field communication, thereby effectively improving the flexibility of use of near field communication and enhancing the user experience.

[0117] An exemplary embodiment of the present disclosure provides an electronic device, which may be, for example, a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc., and may also be an electronic device with an NFC function, such as a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., which is a non-mobile device.

[0118] like Figure 2 As shown, in one embodiment, the electronic device 1 includes a touch panel as described above. The touch panel is provided with a near field communication module 12, and the near field communication module 12 includes at least one communication unit 121, each communication unit 121 includes at least one near field communication coil 1215 and a liquid crystal layer 1216, and at least one near field communication coil 1215 and the liquid crystal layer 1216 are arranged along the thickness direction of the liquid crystal layer 121, and the liquid crystal layer 1216 is configured to change the magnetic field of the corresponding near field communication coil 1215 when the liquid crystal rotates. Exemplarily, the communication unit 121 can be provided with one or more, and when only one communication unit 121 is provided, the direction and intensity of the magnetic field of the corresponding near field communication coil 1215 are changed by the rotation of the liquid crystal, so that the recognition direction and recognition distance of the near field communication coil 1215 are adjustable. Exemplarily, the rotation of the liquid crystal can, for example, change the dielectric constant of the liquid crystal layer 1216 by applying different voltages to the liquid crystal layer 1216, thereby changing the influence on the magnetic field. For example, different dielectric constants of the liquid crystal layer 1216 can control the amount of signal transmitted. When the amount of transmitted signals is greater, the emitted signal strength is stronger and the identification distance is farther. When the amount of blocked signals is greater, the emitted signal strength is weaker and the identification distance is closer. At the same time, the deflection angle of the liquid crystal can also adjust the direction of signal emission, thereby adjusting the identification direction of near-field communication.

[0119] When the near field communication module 12 is provided with a plurality of communication units 121, not only can the recognition direction and recognition distance of the near field communication coil 1215 be adjusted, but also the size of the recognition area can be adjusted according to the demand by adjusting the rotation of the liquid crystal in the liquid crystal layer 1216. As the number of communication units 121 increases, the control of the recognition area becomes more precise.

[0120] The electronic device 1 further includes a controller 14 , which is electrically connected to the liquid crystal driving unit 13 . The controller 14 controls the liquid crystal driving unit 13 to control each communication unit 121 on the touch panel.

[0121] In this embodiment, by setting a liquid crystal layer 1216, the liquid crystal in the liquid crystal layer 1216 can be rotated to adjust the recognition direction, recognition distance and recognition area of ​​near field communication, thereby effectively improving the flexibility of use of near field communication and enhancing the user experience.

[0122] In another embodiment, the electronic device 1 includes the touch panel 11 as described above. Figure 2As shown, the touch panel 11 includes a near field communication module 12, and the near field communication module 12 includes at least one communication unit 121, each communication unit 121 includes at least one near field communication coil 1215 and a liquid crystal layer 1216, and at least one near field communication coil 1215 and the liquid crystal layer 1216 are arranged along the thickness direction of the liquid crystal layer 121, and the liquid crystal layer 1216 is configured to change the magnetic field of the corresponding near field communication coil 1215 when the liquid crystal rotates. Exemplarily, the communication unit 121 can be provided with one or more, and when only one communication unit 121 is provided, the direction and intensity of the magnetic field of the corresponding near field communication coil 1215 are changed by the rotation of the liquid crystal, so that the recognition direction and recognition distance of the near field communication coil 1215 are adjustable. Exemplarily, the rotation of the liquid crystal can, for example, change the dielectric constant of the liquid crystal layer 1216 by applying different voltages to the liquid crystal layer 1216, thereby changing the influence on the magnetic field. For example, different dielectric constants of the liquid crystal layer 1216 can control the amount of transmitted signals. When the amount of transmitted signals is greater, the emitted signal strength is stronger and the identification distance is farther. When the amount of blocked signals is greater, the emitted signal strength is weaker and the identification distance is closer. At the same time, the deflection angle of the liquid crystal can also adjust the direction of signal emission, thereby adjusting the identification direction of near-field communication.

[0123] When the near field communication module 12 is provided with a plurality of communication units 121, not only can the recognition direction and recognition distance of the near field communication coil 1215 be adjusted, but also the size of the recognition area can be adjusted according to the demand by adjusting the rotation of the liquid crystal in the liquid crystal layer 1216. As the number of communication units 121 increases, the control of the recognition area becomes more precise.

[0124] The electronic device 1 further includes a controller 14 , which is electrically connected to the liquid crystal driving unit 13 . The controller 14 controls the liquid crystal driving unit 13 to control each communication unit 121 on the touch panel 11 .

[0125] In this embodiment, by setting a liquid crystal layer 1216, the liquid crystal in the liquid crystal layer 1216 can be rotated to adjust the recognition direction, recognition distance and recognition area of ​​near field communication, thereby effectively improving the flexibility of use of near field communication and enhancing the user experience.

[0126] In one embodiment, the electronic device further includes a processor and a memory for storing instructions executable by the processor, wherein the processor is configured to execute:

[0127] In response to a first preset operation of the user, turning on the near field communication module;

[0128] The liquid crystal of the liquid crystal layer in at least one communication unit is controlled to rotate so that the near field communication module sends a first communication signal.

[0129] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0130] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A near field communication module, characterized in that: The near field communication module includes at least one communication unit, and the communication unit includes: at least one near field communication coil; A liquid crystal layer, wherein the at least one near field communication coil and the liquid crystal layer are arranged along a thickness direction of the liquid crystal layer, and the liquid crystal layer is configured to change a magnetic field corresponding to the near field communication coil when the liquid crystal rotates.

2. The near field communication module according to claim 1, characterized in that: In the same communication unit, the near field communication coil is stacked with the liquid crystal layer, the liquid crystal layer includes a first surface and a second surface opposite to each other along the thickness direction of the liquid crystal layer, and the orthographic projection of the near field communication coil on the plane where the first surface is located is located within the first surface.

3. The near field communication module according to claim 2, characterized in that: The liquid crystal layer includes a first substrate and a second substrate stacked together and liquid crystal located between the first substrate and the second substrate, the outer surface of the first substrate constitutes the first surface, a first electrode layer is arranged on the inner surface of the first substrate, the outer surface of the second substrate constitutes the second surface, and a second electrode layer is arranged on the inner surface of the second substrate.

4. The near field communication module according to claim 3, characterized in that: The near field communication coil is disposed on the first surface.

5. The near field communication module according to claim 3, characterized in that: The orthographic projection of the near field communication coil on the first electrode layer is located within the first electrode layer.

6. The near field communication module according to any one of claims 1 to 5, characterized in that: The communication units are provided in plurality, and the plurality of communication units are arranged side by side.

7. The near field communication module according to any one of claims 1 to 5, characterized in that: The near field communication module further includes a liquid crystal driving unit, and the liquid crystal driving unit is used to drive the liquid crystals in each of the liquid crystal layers to rotate.

8. A communication control method, characterized in that: The communication control method comprises: In response to a first preset operation of the user, turning on the near field communication module; The liquid crystal of the liquid crystal layer in at least one of the communication units is controlled to rotate so that the near field communication module sends a first communication signal.

9. The communication control method according to claim 8, characterized in that: The controlling the rotation of liquid crystal in the liquid crystal layer of at least one of the communication units comprises: Determining voltage information corresponding to each of the communication units; The liquid crystal driving section of each of the communication units is controlled to drive the liquid crystal in the liquid crystal layer to rotate according to the corresponding voltage information.

10. The communication control method according to claim 9, characterized in that: The communication control method further includes: In response to a second preset operation of the user, the voltage information corresponding to each of the communication units is modified.

11. The communication control method according to claim 10, characterized in that: In response to the second preset operation of the user, modifying the voltage information corresponding to each of the communication units includes: In response to a location selection operation by a user, determining a communication center location selected by the user; Based on the communication center position, the modified voltage information corresponding to each of the communication units is determined.

12. The communication control method according to claim 10, characterized in that: In response to the second preset operation of the user, modifying the voltage information corresponding to each of the communication units includes: In response to a sensing direction selection operation by a user, determining a sensing direction selected by the user; Based on the sensing direction, the modified voltage information corresponding to each of the communication units is determined.

13. The communication control method according to any one of claims 8 to 12, characterized in that: The communication control method further includes: In response to receiving a second communication signal sent by the master device, acquiring voltage change information of each of the communication units; Based on the voltage change information, the location information of the master device is determined.

14. The communication control method according to claim 13, characterized in that: The determining the location information of the master device based on the voltage change information includes: Comparing the voltage change information of each of the communication units to determine the relative position of the near field communication module and the host device in a direction parallel to the first surface of the near field communication module; and / or, Based on the voltage change information of each of the communication units and preset configuration information, the distance between the near field communication module and the main device is determined, and the preset configuration information is used to characterize the corresponding relationship between the voltage change and the distance.

15. A touch panel, characterized in that: The touch panel includes the near field communication module according to any one of claims 1 to 7.

16. A touch panel, characterized in that: The touch panel includes the near field communication module according to any one of claims 1 to 7.

17. An electronic device, characterized in that: The electronic device comprises a touch panel as claimed in claim 15 or a touch pad as claimed in claim 16, and / or the electronic device comprises a processor and a memory for storing processor executable instructions, wherein the processor is configured to execute the communication control method as claimed in any one of claims 8 to 14.

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