Touch device

Abstract

This application discloses a touch device, belonging to the field of touch technology. The touch device includes: a processing component, a touch display module, a near-field communication (NFC) driving module, and a switch module. The touch display module includes a display screen and a touch component. The touch component includes a touch sensing device, which includes a touch sensing driving module and a driving electrode layer. The driving electrode layer includes N driving channels. The NFC driving module is connected to each driving channel through the switch module. The processing component controls the switch module to turn on when the first driving channel outputs a touch sensing driving signal, so that the NFC driving module and the second driving channel form a closed loop, thereby using the second driving channel as a NFC antenna. The second driving channel is the NFC antenna; the first and second driving channels are different driving channels. This application improves the flexibility of touch device size design.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of touch control, in particular to a touch device. BACKGROUND

[0002] The touch device (such as a mobile phone, a tablet computer and the like) with a near field communication (NFC) function comprises a touch component, a display screen, an NFC antenna and the like. The touch component can perceive touch operation data of a user on the touch device. The touch device can control the display screen to display corresponding content according to the touch operation data. The touch device can exchange data with an NFC sensing device when close to the NFC sensing device through the NFC antenna.

[0003] At present, in the existing touch device, the touch component and the NFC antenna are independently arranged at different positions of the touch device, which causes the touch component and the NFC antenna to occupy a large position space of the touch device, and further causes poor flexibility of the size design of the touch device. SUMMARY

[0004] Embodiments of the present application provide a touch device, which can solve the problem of poor flexibility of the size design of the touch device.

[0005] The touch device comprises a processing component, a touch display module, a near field communication driving module and a switch module. The touch display module comprises a display screen and a touch component. The touch component comprises a touch sensing device, which comprises a touch sensing driving module and a driving electrode layer. The driving electrode layer comprises N driving channels. N is an integer greater than or equal to 2.

[0006] The driving electrode layer is located on the upper side of the display screen. The first end of the touch sensing driving module is connected with the first end of each driving channel. The near field communication driving module is connected with each driving channel through the switch module. The first end of the processing component is connected with the second end of the touch sensing driving module. The second end of the processing component is connected with the second end of the near field communication driving module. The third end of the processing component is connected with the control end of the switch module.

[0007] The processing component is configured to control the switch module to be conductive when the touch sensing driving module controls the first driving channel to output a touch sensing driving signal, so that the near field communication driving module and the second driving channel form a closed loop to take the second driving channel as a near field communication antenna. The first driving channel and the second driving channel are different driving channels in the N driving channels.

[0008] Optionally, the switch module comprises a first switch unit;

[0009] The first end of the near field communication driving module is connected with the first end of the first switch unit, and the second end of the first switch unit is connected with the first end of each driving channel.

[0010] The third end of the processing component is connected with the control end of the first switch unit.

[0011] Optionally, the first switch unit comprises at least two first switches.

[0012] The first end of each first switch is connected with the first end of the corresponding driving channel, the second end of each first switch is connected with the first end of the near field communication driving unit, and the control end of the first switch is connected with the third end of the processing component.

[0013] Optionally, the second end of the near field communication driving module is connected with the second end of each driving channel.

[0014] Optionally, the switch module further comprises a second switch unit.

[0015] The second end of the near field communication driving module is connected with the first end of the second switch unit, and the second end of the second switch unit is connected with the second end of each driving channel.

[0016] The third end of the processing component is connected with the control end of the second switch unit.

[0017] Optionally, the second switch unit comprises at least two second switches.

[0018] The first end of each second switch is connected with the second end of the corresponding driving channel, the second end of each second switch is connected with the second end of the near field communication driving unit, and the control end of the second switch is connected with the third end of the processing component.

[0019] Optionally, the first switch and the second switch are switches controlled by analog control signals.

[0020] The processing component is specifically used for sending analog conduction control signals to the first switch and the second switch corresponding to the second driving channel.

[0021] Optionally, the driving channel adopts a transparent conductor material.

[0022] Optionally, the first driving channel and the second driving channel are adjacent.

[0023] Or, the first driving channel and the second driving channel are spaced by M driving channels, M is an integer greater than or equal to 1 and less than N-2;

[0024] Or, the second driving channel is a driving channel covering a preset position of the display screen.

[0025] Or, the second driving channel is any driving channel covering a preset area of the display screen.

[0026] Optionally, the touch sensing device further comprises: a sensing electrode layer; the sensing electrode layer comprises K sensing channels; K is an integer greater than or equal to 2;

[0027] The sensing electrode layer is located on the upper side of the driving electrode layer, and a third end of the touch sensing driving module is connected to one end of each sensing channel.

[0028] Optionally, the near field communication driving module is an NFC driving module.

[0029] Optionally, the touch device is a smart interactive panel.

[0030] In the embodiments of the present application, the second driving channel not in the state of outputting the touch sensing driving signal is used as an antenna for near field communication, so that the antenna required for near field communication does not need to be additionally provided in the touch device, and the function of near field communication can be realized, the use of the position space resource of the touch device is reduced, and the flexibility of the size design of the touch device is improved. In addition, by providing the switch module in the touch device, the closed loop of the first driving channel and the near field communication driving module can be cut off when the first driving channel outputs the touch sensing driving signal, so that the first driving channel can be used to realize the touch sensing function. The processing component can control the switch module to turn on the closed loop of the second driving channel not outputting the touch sensing driving signal and the near field communication driving module, so as to use the second driving channel as a near field communication antenna to realize the function of near field communication. Through the above method, the influence of realizing near field communication on the touch sensing function of the touch device is avoided, and the user experience is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0032] Figure 1 It is a structural schematic diagram of a touch device in the related art.

[0033] Figure 2 Another structure diagram of a touch device in the related art;

[0034] Figure 3 A structure diagram of a touch device provided in the present application;

[0035] Figure 4 Another structure diagram of a touch device provided in the present application;

[0036] Figure 5 Another structure diagram of a touch device provided in the present application;

[0037] Figure 6 Another structure diagram of a touch device provided in the present application;

[0038] Figure 7 Another structure diagram of a touch device provided in the present application;

[0039] Figure 8 Another structure diagram of a touch device provided in the present application. DETAILED DESCRIPTION

[0040] In order to make the objects, technical solutions and advantages of the present application clearer, the following will further describe the embodiments of the present application with reference to the accompanying drawings.

[0041] It should be noted that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0042] The following description refers to the accompanying drawings. Unless otherwise noted, the same reference numbers in different drawings denote the same or similar elements. The following description of the example embodiments is not meant to represent all embodiments in accordance with the present application. Rather, they are merely examples in accordance with some aspects of the present application as detailed in the appended claims.

[0043] In the description of the present application, it is understood that the terms "first", "second", "third" and the like are used only to distinguish similar objects, and do not necessarily have to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. "And / or", which describes the association between objects, means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship.

[0044] Figure 1 A structural diagram of a touch device in the related art is shown. As shown in Figure 1 The hardware part of the touch device is composed of a touch display module, an intelligent processing system (including a processing component), and the like, which are combined together by an overall structure and supported by a dedicated software system. The touch display module includes a display screen and a touch component. The touch component includes a touch sensing layer.

[0045] The touch sensing layer is arranged on the display screen or at the front end of the display screen, and is used to collect touch operation data of a user. The touch component can send the touch operation data collected by the touch sensing layer to the intelligent processing system for processing. The display screen is used to display picture data.

[0046] For example, the touch device can be a mobile phone, a tablet computer, a desktop computer, a notebook computer, a camera, a smart watch, a smart television, a smart interactive tablet, and the like.

[0047] In some embodiments, the touch component can be a capacitive sensing touch component.

[0048] In some embodiments, the display screen can include a display panel. The display panel can employ a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flex light-emitting diode (FLED), a Miniled, a MicroLed, a Micro-oLed, a quantum dot light emitting diodes (QLED), or the like. In some embodiments, the touch device can include one or more display screens.

[0049] In actual use, when a user clicks the content displayed on the display screen, such as a graphical button displayed on the display screen, by a finger or a touch object such as a stylus, the touch component of the touch device will collect touch data, so that the touch component converts the touch data into coordinate data of the touch point and sends it to the intelligent processing system, or converts it into coordinate data of the touch point at the intelligent processing system. After the intelligent processing system obtains the coordinate data of the touch point, it implements the corresponding control operation according to the pre-set program, and drives the display screen to display the content to change, realizing diversified display and operation effect.

[0050] In some embodiments, the touch device can also be provided with an NFC antenna, an NFC driving module, and other modules for realizing NFC function to make the touch device have NFC function. For the touch device with NFC function, Figure 2 Another structural schematic diagram of the touch device in the related art.

[0051] As Figure 2 shown, in the touch device in the related art, the touch component and the above-mentioned NFC antenna and NFC driving module are independently arranged at different positions of the touch device. The intelligent processing system is also connected with the NFC driving module for controlling the NFC driving module to send driving signals to the NFC antenna to make the NFC antenna realize data transmission and reception.

[0052] The NFC antenna can be a circuit coil made by winding, printing, or etching process. In some embodiments, the NFC antenna can also include ferrite material with anti-interference ability.

[0053] It should be understood that the application does not limit the application scenarios of the NFC function.

[0054] Taking the mobile phone as an example, the mobile phone can read the identification information of the card such as the bus card and the subway card of the user through the NFC function, and store the identification information. Then, the mobile phone can replace the card such as the bus card or the subway card. When other devices need to read the identification information of the card, the other devices can read the identification information of the card stored in the mobile phone through the NFC function of the mobile phone.

[0055] Taking the touch device 1 and the touch device 2 as an example, when the distance between the touch device 1 and the touch device 2 is less than the maximum distance that can realize the approach communication, the touch device 1 and the touch device 2 can identify the identification information of the other party through the NFC function, and match.

[0056] It should be understood that, Figure 1 and Figure 2 are only exemplary and show the components related to the present application in the hardware part of the touch device. The present application does not limit whether the above touch device further includes other systems, and / or other modules. In addition, the present application does not limit whether the above touch display module further includes other components. For example, the touch display module can further include a backlight assembly and the like. The backlight assembly can be used to provide a backlight source for the display screen.

[0057] In the existing touch device, the touch component and the NFC antenna are independently arranged in the touch device, so that the touch component and the NFC antenna need to occupy a larger space of the touch device, which may cause poor flexibility of the size design of the touch device.

[0058] Considering that the poor flexibility of the size design of the existing touch device is caused by the fact that the touch component and the NFC antenna need to occupy a larger space of the touch device, the present application provides a touch device for realizing near distance communication based on a touch component. In the touch device provided by the present application, the near distance communication wire does not need to be additionally arranged, and the near distance communication between the touch device and other devices can be realized. Compared with the existing touch device, the touch device provided by the present application reduces the space of the touch device occupied by the near distance communication wire, and thus improves the flexibility of the size design of the touch device.

[0059] It should be understood that this application does not limit the aforementioned short-range communication method. This short-range communication method can be, for example, a short-range communication method based on Radio Frequency Identification (RFID) technology. For example, according to the operating frequency band, the aforementioned RFID-based short-range communication method can be a low-frequency band (mainly operating at 125 kHz) short-range communication method, an NFC short-range communication method (mainly operating at 13.56 MHz), an ultra-high frequency band (mainly operating at 433.92 MHz and 915 MHz) short-range communication method, a microwave band (mainly operating at 2.45 GHz) short-range communication method, etc.

[0060] Example 1

[0061] The following describes the touch device provided in this application in detail, taking a touch device as an example of a smart interactive panel, with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0062] Figure 3 This is a schematic diagram of the structure of a touch device provided in this application. Figure 3 As shown, the touch device includes: a processing component, a touch display module, a near-field communication (NFC) driver module, and a switch module. The touch display module includes: a display screen and a touch component. The touch component includes: a touch sensing device. The touch sensing device includes: a touch sensing driver module and a driver electrode layer. The driver electrode layer includes N driver channels, where N is an integer greater than or equal to 2. It should be understood that... Figure 3 This is merely an illustrative description of the touch device, using the example of a touch electrode layer containing three driving channels.

[0063] The aforementioned driving electrode layer is located on the upper side of the display screen. The first end of the touch-sensing driving module is connected to the first end of each driving channel. The near-field communication driving module is connected to each driving channel via a switch module. The first end of the processing component is connected to the second end of the touch-sensing driving module. The second end of the processing component is connected to the second end of the near-field communication driving module. The third end of the processing component is connected to the control terminal of the switch module.

[0064] The touch sensing drive module controls the output of touch sensing drive signals from each drive channel on the drive electrode layer. The drive channels are deployed on the drive electrode layer and are used to output touch sensing drive signals. Based on these touch sensing drive signals, the aforementioned touch sensing device can sense whether a user is touching content displayed on the touch screen of the touch device.

[0065] For example, the touch-sensing driving signal can be a periodic sine wave signal or a square wave signal, etc. The amplitude and frequency of the periodic sine wave and square wave are not limited in the present application.

[0066] In some embodiments, the touch-sensing driving module is implemented by an integrated circuit (IC) chip, for example. Optionally, the driving channel can be made of a transparent conductor material. For example, the transparent conductor material can be indium tin oxide (ITO) material.

[0067] In some embodiments, the touch-sensing driving module can sequentially send a signal for controlling each driving channel to output a touch-sensing driving signal to each driving channel according to the arrangement position of each driving channel on the driving electrode layer and the preset frequency. For example, as shown in FIG. 3, the touch-sensing driving module can send a signal for controlling the driving channel 3 to output a touch-sensing driving signal to the driving channel 3 at time T, send a signal for controlling the driving channel 2 to output a touch-sensing driving signal to the driving channel 2 at time T+Δt, and send a signal for controlling the driving channel 1 to output a touch-sensing driving signal to the driving channel 1 at time T+2Δt. Figure 3

[0068] The processing component is configured to control the switch module to be turned on when the touch-sensing driving module controls the first driving channel to output a touch-sensing driving signal, so that the near field communication driving module and the second driving channel form a closed loop to use the second driving channel as a near field communication antenna. The first driving channel and the second driving channel are different driving channels in the N driving channels, so that the driving channel used as the near field communication antenna cannot output a touch-sensing driving signal, thereby avoiding the conflict between the touch function and the near field communication function of the touch device.

[0069] As a first possible implementation, if the touch-sensing driving module will not drive two adjacent driving channels to output touch-sensing driving signals at the same time, the first driving channel and the second driving channel can be two adjacent driving channels.

[0070] As a second possible implementation, if the touch-sensing driving module will not drive two driving channels spaced by M driving channels to output touch-sensing driving signals at the same time, the first driving channel and the second driving channel can be spaced by M driving channels. M is an integer greater than or equal to 1 and less than N-2.

[0071] ​In some embodiments, the touch sensing driving module can sequentially control each first driving channel to output touch sensing driving signals according to the arrangement order of the driving channels on the driving electrode layer. That is, the first driving channels can cover the entire area of ​​the driving electrode layer. Therefore, through the first and second possible implementations described above, the second driving channel can also cover the entire area of ​​the driving electrode layer, thereby allowing the near-field communication antenna to occupy the entire driving electrode layer. Since the range of the driving touch layer is typically the same as the range of the display screen, this method allows the near-field communication antenna to cover the entire display screen, improving the near-field communication sensing range of the touch device and thus enhancing the user experience.

[0072] As a third possible implementation, the second drive channel can also be a drive channel covering a preset position of the display screen, or any drive channel covering a preset area of ​​the display screen. With the above settings, the coverage range of the antenna for short-range communication can be within the preset range. The preset position or preset area can, for example, be pre-stored by the user in the processing component.

[0073] For example, with Figure 3 Taking the driving channel shown in the figure as an example, assuming that the touch sensing driving module controls the driving channel 1 to output the touch sensing driving signal, that is, the driving channel 1 is the first driving channel, then the second driving channel can be the driving channel 2 or the driving channel 3.

[0074] Optionally, the aforementioned processing component may include one or more processing cores. This processing component may, for example, connect various parts within the entire smart interactive flat panel using various interfaces and lines. In some embodiments, the touch device may also include a memory. In this implementation, the aforementioned processing component may, for example, execute various functions of the smart interactive flat panel and process data by running or executing instructions, programs, code sets, or instruction sets stored in the memory, and by calling data stored in the memory.

[0075] Optionally, the processing component can be implemented in at least one of a hardware form of a Digital Signal Processing (DSP), a Field-Programmable Gate Array (FPGA), a Programmable Logic Array (PLA). The processing component can be integrated with a combination of one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), and a modem. The CPU can process an operating system, a user interface, and an application program, etc. The GPU can be responsible for rendering and drawing of content to be displayed on a display screen. The modem can be used for processing wireless communication. It can be understood that the modem can also not be integrated into the processing component, but implemented separately by a chip.

[0076] The switch module is configured to, under control of the processing component, turn on or turn off a closed loop formed by the near field communication driving module and the second driving channel, so as to use the second driving channel as a near field communication antenna. As a possible implementation, the processing component can send an analog turn-on control signal to the switch module, and the switch module can control the turn on and turn off of the closed loop according to the analog turn-on control signal. For example, the analog turn-on control signal can be an analog voltage signal or an analog current signal.

[0077] In a specific implementation, how the processing component controls the turn on of the switch module is also related to the type of the switch module. In some embodiments, the switch module can be an analog switch chip.

[0078] The near field communication driving module is configured to drive the closed loop formed by the near field communication driving module and the second driving channel to receive and send data. In some embodiments, the near field communication driving module can drive the closed loop to receive and send data after receiving a signal sent by the processing component, the signal being used to instruct the touch device to start a near field communication function. Taking the near field communication as NFC, the near field communication driving module is an NFC driving module.

[0079] It should be understood that, Figure 3 The modules related to the present application in the touch device are only exemplary. The present application does not limit whether the touch device further includes other modules. Figure 3This application merely exemplifies the modules and components included in the touch device provided, and does not limit the specific deployment location of each module or component within the touch device. Furthermore, it should be understood that this application does not limit the number of turns in the closed loop formed by the aforementioned near-field communication driver module and the second driver channel.

[0080] In this embodiment, by using the second driving channel, which is not in the state of outputting touch sensing drive signals, as an antenna for near-field communication, the near-field communication function can be achieved without the need for an additional antenna in the touch device. This reduces the use of space resources in the touch device and improves the flexibility of touch device size design. Furthermore, by using a switch module in the touch device, the circuit between the first driving channel and the near-field communication drive module can be cut off when the first driving channel outputs a touch sensing drive signal, allowing the first driving channel to be used for touch sensing. The processing component can control the switch module to open the closed circuit between the second driving channel, which is not outputting touch sensing drive signals, and the near-field communication drive module, thus using the second driving channel as a near-field communication antenna to achieve the near-field communication function. Through the above method, the impact of near-field communication on the touch sensing function of the touch device is avoided, thereby ensuring a good user experience.

[0081] Example 2

[0082] The specific structure of the above-mentioned switch module will be described in detail below. Figure 4 A schematic diagram of another touch device provided in this application. Figure 4 As shown, in one possible implementation, the switch module of the touch device may include a first switch unit. A first end of the near-field communication driver module is connected to a first end of the first switch unit. A second end of the first switch unit is connected to a first end of each drive channel. A third end of the processing component is connected to a control end of the first switch unit.

[0083] In some embodiments, the first end of the short-range communication driver module may also be connected to the second end of the first switching unit, and the first end of the first switching unit may be connected to the first end of each driving channel. In some embodiments, the control end of the first switching unit may be used to receive an analog conduction control signal from the processing component.

[0084] In this implementation, optional options include, for example Figure 4 As shown, the second end of the short-range communication drive module can be connected to the second end of each drive channel, so that the aforementioned short-range communication drive module, switch module, and drive channel form a closed loop, so that the second drive channel can be used as a short-range communication antenna.

[0085] In this implementation,Figure 5 Fig. 2 shows a schematic diagram of another touch device according to an embodiment of the present application. As shown in Fig. 2, the first switch unit of the touch device can include at least two first switches. It should be understood that Figure 5 Figure 5 is an example in which the first switch unit includes three first switches.

[0086] As shown in Fig. 2, the first end of each first switch is connected to the first end of the corresponding driving channel. The second end of each first switch is connected to the first end of the near field communication driving unit. The control end of each first switch is connected to the third end of the processing component. Figure 5

[0087] In this implementation, the third end of the processing component can be directly connected to the control end of each first switch (as shown in Fig. 2) to control the on or off of the first switch. Alternatively, the switch module can further include a switch control unit. In this implementation, the third end of the processing component can be connected to the control end of the first switch through the switch control unit. That is, the processing component can send a switch control signal to the switch control unit, and the switch control unit can control the on or off of the first switch according to the switch control signal from the processing component. Figure 5

[0088] For example, the switch controlled by the analog control signal can be a relay, a Metal-Oxide-Semiconductor (MOS) tube, or the like. The MOS tube can be an N-type MOS tube, a P-type MOS tube, or a Complementary Metal Oxide Semiconductor (CMOS) tube.

[0089] In this example, the processing component can send an analog on control signal to the first switch corresponding to the second driving channel. Optionally, the processing component can pre-store a mapping relationship between the first switch corresponding to each driving channel and the analog on control signal. The processing component can determine the analog on control signal of the first switch corresponding to the second driving channel according to the first switch corresponding to the second driving channel and the mapping relationship between the first switch and the analog on control signal.

[0090] For example, the mapping relationship between the first switch and the analog on control signal can be as shown in Table 1:

[0091] Table 1

[0092] Number First switch Analog on control signal 1 Switch 11 Signal 11 2 Switch 12 Signal 12 3 Switch 13 Signal 13 … … … ​​​

[0093] For example, the signal 11, the signal 12, and the signal 13 can be different current values or current values in different ranges, taking the analog conduction control signal as an analog current signal. Assuming that the first switch corresponding to the second drive channel is the switch 11, according to the mapping relationship shown in Table 1, the processing component sends the signal 11 to the first switch to control the first switch to conduct.

[0094] In some embodiments, the analog conduction control signal can further include an address code for indicating the first switch corresponding to the second drive channel. In this implementation, after receiving the address code, the switch module can determine the first switch corresponding to the second drive channel according to the address code, and control the first switch to conduct.

[0095] In this embodiment, by controlling the first switch unit through the processing component, the closed loop of the first drive channel and the near field communication driving module can be cut off, and the closed loop of the second drive channel and the near field communication driving module can be conducted, so that the touch device can normally perform the touch sensing function and the near field communication function without additionally setting a near field communication antenna, and the multiplexing rate of the touch component and the space utilization rate of the touch device are improved, and the cost of the touch device is reduced.

[0096] Embodiment 3

[0097] Figure 6 Another structure diagram of a touch device is provided in the present application. As shown in Figure 6 The switch module of the touch device can further include a second switch unit. The second end of the near field communication driving module is connected to the first end of the second switch unit. The second end of the second switch unit is connected to the second end of each drive channel. The third end of the processing component is further connected to the control end of the second switch unit.

[0098] It should be understood that the third end of the processing component refers to an output end for controlling the switch module, and the output end can have at least one port. Therefore, when the switch module includes the first switch unit and the second switch unit, the third end of the processing component can be connected to the control end of the first switch unit and the control end of the second switch unit.

[0099] In this implementation, Figure 7 Another structure diagram of a touch device is provided in the present application. As shown in Figure 7 As a possible implementation, the second switch unit can include at least two second switches. It should be understood that Figure 7 is an example taking the second switch unit including three second switches as an example.

[0100] AsFigure 7 As shown, the first end of each second switch is connected with the second end of the corresponding driving channel. The second end of each second switch is connected with the second end of the near distance communication driving unit. The control end of the second switch is connected with the third end of the processing component.

[0101] In this implementation, the third end of the processing component can be directly connected with the control end of each second switch (as shown) to control the on or off of the second switch. Alternatively, the switch module can further include a switch control unit. In this implementation, the third end of the processing component can be connected with the control end of the second switch through the switch control unit. That is, the processing component can send a switch control signal to the switch control unit, and the switch control unit can control the on or off of the second switch according to the switch control signal from the processing component. Figure 7

[0102] For example, the switch controlled by the analog control signal can be a relay, a MOS tube, or the like. The MOS tube can be an N-type MOS tube, a P-type MOS tube, or a CMOS tube.

[0103] For example, the first switch and the second switch are both switches controlled by an analog control signal. The processing component can send an analog on control signal to the first switch and the second switch corresponding to the second driving channel.

[0104] Alternatively, if the on conditions of the first switch and the second switch corresponding to the same second driving channel are the same, the processing component can prestore, for example, a mapping relationship between the first switch corresponding to each driving channel and the analog on control signal, or a mapping relationship between the second switch and the analog on control signal. The specific implementation of this implementation can refer to the method in which the processing component sends an analog on control signal to the first switch corresponding to the second driving channel in the foregoing embodiment, which will not be described here.

[0105] Alternatively, if the on conditions of the first switch and the second switch corresponding to the same second driving channel are different, the processing component can prestore, for example, a first mapping relationship between the first switch corresponding to each driving channel and the analog on control signal, and a second mapping relationship between the second switch corresponding to each driving channel and the analog on control signal. The processing component can determine the analog on control signal of the first switch corresponding to the second driving channel and the analog on control signal of the first switch according to the first switch and the second switch corresponding to the second driving channel, and the first mapping relationship and the second mapping relationship.

[0106] ​For example, the first mapping relationship between the first switch and the analog conduction control signal can be shown in Table 1 as described above. The second mapping relationship between the second switch and the analog conduction control signal can be shown in Table 2 as described below:

[0107] Table 2

[0108] Number Second switch Analog on control signal 1 Switch 21 Signal 21 2 Switch 22 Signal 22 3 Switch 23 Signal 23 … … …

[0109] For example, the analog conduction control signal is an analog voltage signal, the signal 21, the signal 22, and the signal 23 can be voltage values of different sizes or voltage values of different ranges. Assuming that the first switch corresponding to the second drive channel is the switch 12 and the second switch is the switch 22, according to the mapping relationship shown in Table 1 and Table 2, the processing component sends the signal 12 to the first switch and the signal 22 to the second switch to control the conduction of the first switch and the second switch.

[0110] In some embodiments, the analog conduction control signal can further include a first address code for indicating the first switch corresponding to the second drive channel, and a second address code for indicating the second switch corresponding to the second drive channel. In this implementation, after receiving the first address code and the second address code, the switch module can determine the first switch and the second switch corresponding to the second drive channel according to the first address code and the second address code, and control the conduction of the first switch and the second switch.

[0111] In this embodiment, by setting the first switch unit at one end of the drive channel and the second switch unit at the other end of the drive channel, the connection between the two ends of the first drive channel outputting the touch sensing drive signal and the near field communication drive module can be cut off, the length of the wire extending from the two ends of the first drive channel during outputting the touch sensing drive signal is reduced, the interference of the wire extending from the two ends of the first drive channel on the touch sensing of the first drive channel is reduced, and the sensitivity of the drive electrode layer in sensing touch is improved, and the user experience is improved.

[0112] Embodiment 4

[0113] Figure 8 Another structure schematic diagram of a touch device is provided in the present application. As shown in Figure 8 The touch sensing device can further include a sensing electrode layer. The sensing electrode layer includes K sensing channels. K is an integer greater than or equal to 2. The value of K can be the same as N (the number of drive channels included in the drive electrode layer), or different from N, which is not limited in the present application. It should be understood that Figure 8 In the present application, only an example in which the sensing electrode layer includes four sensing channels is provided.

[0114] The sensing electrode layer is located on the upper side of the driving electrode layer. A third end of the touch sensing driving module is connected to one end of each sensing channel.

[0115] In some embodiments, any driving channel of the driving electrode layer can send a touch sensing driving signal to all sensing channels of the sensing electrode layer. Optionally, a coupling capacitor can be arranged between the driving channel and the sensing channel, and the driving channel can send the touch sensing driving signal to the sensing channel through the coupling capacitor. Then, the sensing channel can sense whether a user (or a stylus, etc.) contacts the sensing channel and send a sensing signal to the touch sensing driving module.

[0116] In some embodiments, the touch sensing driving module can determine, according to the sensing signal, whether a user touches the touch group display module and the position of the user touch. Alternatively, the touch sensing driving module can also send the sensing signal to the processing component, and the processing component can determine, according to the sensing signal, whether a user touches the touch group display module and the position of the user touch.

[0117] In some embodiments, if the amplitude of the sensing signal is equal to the touch sensing driving signal output by the driving channel, the touch sensing driving module or the processing component can determine that no user touches the touch group display module. If the amplitude of the sensing signal is less than the touch sensing driving signal output by the driving channel, the touch sensing driving module or the processing component can determine, according to the sensing signal, the position of the user touch on the touch group display module.

[0118] It should be noted that, due to the limitation of the length, the present application does not exhaust all optional embodiments, and those skilled in the art should be able to think of any combination of technical features as long as the technical features do not contradict each other, which can constitute an optional embodiment.

[0119] For example, in one embodiment of embodiment 1, a technical feature is described that the driving channel can be made of transparent conductor material, and in another embodiment of embodiment 1, another technical feature is described that the near field communication driving module can be an NFC driving module. Since the above two technical features do not contradict each other, those skilled in the art should be able to think of an embodiment with both features after reading the present application, i.e., the driving channel is made of transparent conductor material and the near field communication driving module is an NFC driving module.

[0120] Technical features described in different embodiments that do not contradict each other can also be combined arbitrarily to constitute an optional embodiment.

[0121] For example, it is described in Embodiment 2 that the switch module can include a first switch unit, and the first switch unit can include at least two first switches. In order to control the length of the specification, this feature is not described in Embodiment 3. However, those skilled in the art should be able to think of that the touch device provided in Embodiment 3 can also include this feature, that is, the switch module can include a first switch unit and a second switch unit. Wherein, the first switch unit can include at least two first switches, and the second switch unit can include at least two second switches.

[0122] It should also be noted that the terms "comprising", "containing", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus including the element.

[0123] The above is only an embodiment of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A touch device, characterized in that, The touch device includes: a processing component, a touch display module, a near-field communication (NFC) driving module, and a switch module; the touch display module includes a display screen and a touch component, the touch component includes a touch sensing device, and the touch sensing device includes: a touch sensing driving module and a driving electrode layer; the driving electrode layer includes N driving channels; where N is an integer greater than 2; The driving electrode layer is located on the upper side of the display screen. The first end of the touch sensing driving module is connected to the first end of each driving channel. The near-field communication driving module is connected to each driving channel through a switch module. The first end of the processing component is connected to the second end of the touch sensing driving module. The second end of the processing component is connected to the second end of the near-field communication driving module. The third end of the processing component is connected to the control end of the switch module. The processing component is used to control the switch module to turn on when the touch sensing drive module controls the first drive channel to output a touch sensing drive signal, so that the near-field communication drive module and the second drive channel form a closed loop, so that the second drive channel is used as a near-field communication antenna; wherein the first drive channel and the second drive channel are different drive channels among the N drive channels.

2. The device according to claim 1, characterized in that, The switching module includes a first switching unit; The first end of the near-field communication driving module is connected to the first end of the first switching unit, and the second end of the first switching unit is connected to the first end of each driving channel. The third end of the processing component is connected to the control end of the first switching unit.

3. The device according to claim 2, characterized in that, The first switching unit includes at least two first switches; The first end of each first switch is connected to the first end of the corresponding drive channel, the second end of each first switch is connected to the first end of the near-field communication drive module, and the control end of the first switch is connected to the third end of the processing component.

4. The device according to claim 2 or 3, characterized in that, The second end of the near-field communication driver module is connected to the second end of each of the driver channels.

5. The device according to claim 2 or 3, characterized in that, The switching module further includes a second switching unit; The second end of the near-field communication driving module is connected to the first end of the second switching unit, and the second end of the second switching unit is connected to the second end of each driving channel. The third end of the processing component is connected to the control end of the second switching unit.

6. The device according to claim 5, characterized in that, The second switching unit includes at least two second switches; The first end of each second switch is connected to the second end of the corresponding drive channel, the second end of each second switch is connected to the second end of the near-field communication drive module, and the control end of the second switch is connected to the third end of the processing component.

7. The device according to claim 6, characterized in that, Both the first switch and the second switch are switches controlled by analog control signals; The processing component is specifically used to send analog conduction control signals to the first switch and the second switch corresponding to the second drive channel.

8. The device according to any one of claims 1-3 or 6-7, characterized in that, The drive channel is made of a transparent conductor material.

9. The device according to any one of claims 1-3 or 6-7, characterized in that, The first drive channel and the second drive channel are adjacent; Alternatively, the first driving channel and the second driving channel are spaced M driving channels apart, where M is an integer greater than or equal to 1 and less than N-2; Alternatively, the second driving channel may be a driving channel that covers a preset position of the display screen; Alternatively, the second driving channel may be any driving channel that covers a preset area of ​​the display screen.

10. The device according to any one of claims 1-3 or 6-7, characterized in that, The touch sensing device further includes: a sensing electrode layer; the sensing electrode layer includes K sensing channels; where K is an integer greater than or equal to 2; The sensing electrode layer is located above the driving electrode layer, and the third end of the touch sensing driving module is connected to one end of each sensing channel.

11. The device according to any one of claims 1-3 or 6-7, characterized in that, The near-field communication driver module is an NFC driver module.

12. The device according to any one of claims 1-3 or 6-7, characterized in that, The touch device is a smart interactive flat panel.

Images