WO2020259660A1 - 一种带nfc功能的触摸板及终端设备 - Google Patents

一种带nfc功能的触摸板及终端设备 Download PDF

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Publication number
WO2020259660A1
WO2020259660A1 PCT/CN2020/098389 CN2020098389W WO2020259660A1 WO 2020259660 A1 WO2020259660 A1 WO 2020259660A1 CN 2020098389 W CN2020098389 W CN 2020098389W WO 2020259660 A1 WO2020259660 A1 WO 2020259660A1
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nfc
touch
chip
signal
touch panel
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PCT/CN2020/098389
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English (en)
French (fr)
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钟梅芳
王良蒙
王宇辉
杨峻
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华为技术有限公司
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Publication of WO2020259660A1 publication Critical patent/WO2020259660A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03547—Touch pads, in which fingers can move on a surface
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G06F3/0383—Signal control means within the pointing device

Definitions

  • This application relates to the field of terminal technology, and in particular to a touch panel with NFC function and terminal equipment.
  • NFC Near field communication
  • NFC is a short-distance wireless communication method, and its working principle is: based on non-contact radio frequency identification technology, magnetic field induction is used to realize the communication between electronic devices at short distances; among them, two NFC-enabled terminals, namely NFC terminals, can exchange information by touching or approaching each other.
  • the NFC function of the notebook computer is usually realized by an NFC tag that burns the relevant information of the machine, and the NFC tag is attached under the glass plate of the touch panel of the notebook computer. Since there is no way to achieve touch function in the area corresponding to the touchpad with the NFC tag attached, in order to ensure the usability of the laptop, it is necessary to make the NFC tag as small as possible to reduce the blind touch area on the touchpad of the laptop When the NFC tag is too small, it will cause incomplete or inaccurate reading of the tag information by the NFC terminal interacting with it, thus affecting the accuracy of the interaction.
  • the embodiment of the present application provides a touch panel with NFC function and a terminal device, so as to increase the touch accuracy of the touch panel while increasing the NFC sensing area of the touch panel.
  • this application provides a touch panel with NFC function, including: a touch panel PCB (print circuit board) for realizing the touch of the touch panel and the NFC function, and a printed circuit board provided on the touch panel.
  • the touch board PCB includes a touch signal receiving layer, a touch signal emitting layer, a ground setting layer, and an NFC setting layer that are stacked, wherein: the touch signal receiving layer is provided with Touch signal receiving wiring, the touch signal transmitting layer is provided with a touch signal transmitting wiring, the touch signal receiving wiring and the touch signal transmitting wiring are connected to the touch chip signal; correspondingly, the NFC
  • the setting layer is provided with an NFC antenna, the NFC antenna is signal-connected with the NFC chip; the projection of the touch signal receiving trace in the stacking direction is exposed between the projection of the touch signal transmitting trace in the stacking direction The gap area of the NFC antenna; when the terminal device including the touch panel interacts with an external NFC terminal, the external NFC
  • the touch signal receiving wiring and the touch signal transmitting wiring are arranged on different layers of the touch panel PCB, it is beneficial to realize the reasonable arrangement of the touch signal receiving wiring and the touch signal transmitting wiring, so that the touch signal receiving wiring and The gap area between the projection of the touch signal transmission trace in the stacking direction of the touch panel PCB is sufficient to expose part or even all of the NFC antenna provided on the NFC setting layer.
  • the setting interval of the NFC antenna can be made as large as possible, so that the NFC sensing area of the touch panel can be increased without affecting the touch accuracy of the touch panel, thereby increasing The accuracy of the interaction between the terminal device containing the touch panel and the external NFC terminal.
  • the touch panel further includes a motherboard control chip, and the motherboard control chip is signal-connected to the touch chip, so that the motherboard control chip can send to the touch chip after processing the touch signal received by the touch chip In response to an instruction, the touch chip makes a corresponding touch response after receiving the response instruction. In this way, the touch response of the touch panel can be more timely, and its response accuracy can be higher.
  • the motherboard control chip is also signal-connected to the NFC chip.
  • an external NFC signal When an external NFC signal is radiated to the NFC antenna, it will be transmitted to the motherboard control chip through the NFC chip.
  • a response instruction is sent to the NFC chip, and the NFC chip makes a corresponding response after receiving the response instruction.
  • the NFC response of the touch panel can be more accurate, so as to realize the information interaction between the terminal device including the touch panel and the external NFC terminal.
  • the NFC chip when the NFC chip receives an external NFC signal, the NFC chip sends a reminder signal to the mainboard control chip, and the mainboard control chip can process the external NFC signal in time according to the reminder signal.
  • the reminder signal can be, but is not limited to, a level signal, an edge signal or a pulse signal.
  • the motherboard control chip can quickly and accurately identify the NFC signal after receiving the reminder signal, and process it, which can effectively improve the response speed of the NFC chip, thereby increasing the The efficiency of information interaction between the terminal device of the touch panel and the external NFC terminal.
  • the NFC chip and the NFC antenna are directly arranged on the NFC setting layer of the touch panel PCB.
  • the NFC chip and the NFC The antenna is integrated as an NFC tag.
  • a protective cover can also be added to the touch panel PCB as the use surface of the touch panel.
  • the touch signal receiving layer of the touch panel PCB is arranged close to the protective cover, so that the touch accuracy of the touch panel is high.
  • this application also provides a terminal device, which includes the aforementioned touch panel. Since the touch panel of the terminal device of the present application is set up, by arranging the touch signal receiving wiring and the touch signal transmitting wiring on different layers of the touch panel PCB, it is beneficial to realize the touch signal receiving wiring and the touch signal transmitting wiring Therefore, the gap area between the touch signal receiving wiring and the projection of the touch signal transmitting wiring in the stacking direction of the touch panel PCB can be exposed to the NFC antenna provided on the NFC setting layer. In this way, on the basis of not affecting the settings of other devices, the setting interval of the NFC antenna can be made as large as possible, so that the NFC sensing area of the touch panel can be increased without affecting the touch accuracy of the touch panel. On the basis of improving the accuracy of interaction between the terminal device and the external NFC terminal, the touch accuracy of the touch panel of the terminal device is improved.
  • the terminal device may further include a keyboard, and the touch pad may be arranged on one side of the keyboard to facilitate the cooperative use of the keyboard and the touch pad.
  • FIG. 1 is a schematic diagram of information exchange between NFC terminals in an embodiment
  • FIG. 2 is a schematic diagram of information exchange between NFC terminals in another embodiment
  • Figure 3 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an exploded structure of a touch panel PCB provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a partial structure of a touch panel PCB provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a touch panel PCB provided by an embodiment of the application.
  • FIG. 7 is a structural block diagram of a touch panel provided by an embodiment of the application.
  • FIG. 8 is a structural block diagram of a touch panel provided by another embodiment of the application.
  • FIG. 9 is a structural block diagram of a touch panel provided by another embodiment of the application.
  • NFC is a short-range wireless communication method, and its working principle is: based on non-contact radio frequency identification technology, magnetic field induction is used to realize short-range communication between electronic devices; among them, two have NFC-enabled terminals, namely NFC terminals, can exchange information by touching or approaching each other. 1, when the user exchanges information through the NFC terminal 13, the two NFC terminals 13 can be close to each other, so that the NFC signal 15 carrying the target information can be transmitted to the NFC terminal 13 of the other party, and then the NFC signal 15 identification, judgment and analysis to complete the information exchange between the two NFC terminals 13.
  • the NFC terminal supports three working modes, namely the card simulation mode, the point-to-point mode, and the card reader module. Among them, the technology of using the point-to-point mode for information exchange between NFC terminals is relatively mature. In the point-to-point mode, two NFC terminals can directly exchange data information such as videos, files, and images, and the information exchange is more convenient.
  • FIG. 2 may show a process of information exchange between a notebook computer 14 with NFC function and an external NFC terminal 13 in a point-to-point mode.
  • the notebook computer 14 Before leaving the factory, the notebook computer 14 is provided with an NFC tag 12 inside to implement NFC communication. Each NFC tag 12 will burn the relevant information of the machine to ensure that when the external NFC terminal 13 approaches or touches the NFC tag 12, it recognizes the notebook computer 14 and completes pairing with it.
  • the NFC tag 12 is usually attached under the glass plate of the touch panel 1 of the notebook computer 14.
  • the present application provides a touch panel and terminal device with NFC function to increase the area of the NFC sensing area on the touch panel without affecting the touch accuracy of the touch panel to improve the NFC communication accuracy.
  • the present application provides a touch panel 1 with NFC function.
  • the touch panel 1 includes a printed circuit board (PCB) 2.
  • the PCB 2 includes an area for realizing touch and In the area that realizes the NFC function, and the touch chip 3 and the NFC chip 4 arranged on the PCB 2; referring to Fig.
  • the touch panel PCB 2 can be a stacked four-layer structure, including a touch signal receiving layer 5 and a touch signal transmitting Layer 6, ground setting layer 7 and NFC setting layer 8, wherein: the pattern on the touch signal receiving layer 5 is a pattern formed by touch signal receiving wiring 501, and the pattern on the touch signal transmitting layer 6 is a touch signal transmitting wiring 601 In the pattern formed, the touch signal receiving wiring 501 and the touch signal transmitting wiring 601 are signal connected to the touch chip 3 (not shown in FIG. 4, refer to FIG. 7).
  • a protective cover will be added to the touch panel PCB 2 shown in Figure 4 (in the figure) (Not shown) as the use surface of the touch panel 1.
  • the touch panel PCB 2 is arranged under the protective cover.
  • other structures can be arranged between the touch panel PCB 2 and the protective cover, and the touch panel PCB 2
  • the touch signal receiving layer 5 is arranged close to the protective cover. Since the touch signal receiving wiring 501 and the touch signal transmitting wiring 601 are respectively arranged on different layers, when the touch signal receiving wiring 501 and the touch signal transmitting wiring 601 are specifically set, the space of the layer can be fully utilized for wiring. As a result, the touch sensing area of the touch panel 1 is larger, which is beneficial to improve the touch accuracy of the touch panel 1.
  • an NFC antenna 9 is provided on the NFC setting layer 8.
  • the NFC antenna 9 is signal-connected to the NFC chip 4; referring to Figures 4 and 5,
  • Figure 5 shows the touch signal receiving layer 5 and the touch signal transmitting layer 6
  • the partial structure diagram after stacking where it can be seen that the projection of the touch signal receiving trace 501 in the stacking direction, and the projection of the touch signal transmitting trace 601 in the stacking direction, there is a gap area where the NFC antenna 9 is exposed.
  • the width of the gap area can be represented by d or d1 in the figure.
  • the width of the gap area can be the same or different everywhere; in this way, referring to Figures 3 and 7 at the same time, when the touchpad 1 is included
  • the above-mentioned gap area can effectively avoid the external NFC signal 15 transmitted by the external NFC terminal 13, so that the external NFC signal 15 can be directly radiated to the NFC antenna 9.
  • the NFC antenna 9 is transmitted to the NFC chip 4, and the NFC chip 4 makes a corresponding interactive response according to the external NFC signal 15, so that the NFC communication process is more accurate.
  • the touch signal receiving wiring 501 and the touch signal transmitting wiring 601 can be in the stacking direction of the touch panel PCB 2
  • the gap area between the projections on the upper part is sufficient to expose part or even all of the NFC antenna 9 arranged on the NFC installation layer 8.
  • the setting interval of the NFC antenna 9 can be made as large as possible, so that the NFC sensing area of the touch panel can be increased without affecting the touch accuracy of the touch panel, and thereby Improve the accuracy of interaction between the terminal device equipped with the touch panel and the external NFC terminal.
  • the touch panel of the present application can be applied to various terminal devices provided with a touch panel, and can be a portable electronic device, such as a mobile phone, a tablet computer, a wearable device with wireless communication function (such as a smart watch), and the like.
  • the aforementioned portable electronic device may also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (such as a touch panel).
  • the aforementioned electronic device may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (such as a touchpad).
  • a notebook computer with a touch panel is used as an example for description.
  • FIG. 7 is a schematic structural diagram of a touch panel according to an embodiment of this application.
  • the communication connection relationship between each structure is shown in the form of a block diagram, and the size of the frame does not represent the corresponding structure.
  • a grid frame represents the touchpad touch area 11, which only represents that the touchpad 1 includes such an area, but does not represent the specific setting position and area size of the area.
  • the touch chip 3, the touch pad touch area 11, the NFC chip 4, and the NFC antenna 9 are all arranged on the touch pad PCB 2.
  • the touch pad 1 may also include a motherboard control chip 10 signally connected to the touch chip 3.
  • the mainboard control chip 10 can be connected through, but not limited to, an integrated circuit bus 16 (inter-integrated circuit, IIC).
  • IIC integrated circuit
  • the user gives a click motion signal through the touch panel 1 of the notebook computer 14 shown in FIG. 3.
  • the click motion signal is transmitted to the touch chip 3 through the signal receiving wiring 501, and then passes through the touch chip 3 3 is transmitted to the main board control chip 10 for analysis and processing.
  • the main board control chip 10 transmits the corresponding click response instruction back to the touch chip 3, and the touch chip 3 gives the corresponding click response, so that the touch panel 1
  • the touch response is more timely and its response accuracy is high.
  • FIG. 8 is a schematic structural diagram of a touch panel according to another embodiment of the present application.
  • the touch panel 1 of this embodiment is different from the previous embodiment in that the mainboard control chip 10 is simultaneously combined with the touch chip 3 and the NFC chip 4.
  • Signal connection where the mainboard control chip 10 can be connected to the touch chip 3 and the NFC chip 4 through the same communication interface; or the mainboard control chip 10 is connected to the touch chip 3 and the NFC chip 4 through different communication interfaces.
  • the motherboard control chip 10 is connected to the touch chip 3 and the NFC chip 4 through the same communication interface. At this time, if the user terminal sends a touch to the touch panel 1 of the notebook computer 14 shown in FIG.
  • the touch chip 3 receives the touch signal and completes the signal transmission with the motherboard control chip 10.
  • the NFC chip 3 receives the NFC signal 15 and transmits it to the motherboard control chip 10.
  • the motherboard control chip 10 processes the NFC signal 15 to complete the pairing with the NFC terminal 13, and transmits the processed signal to the NFC chip 3, so that it gives the corresponding response. In this way, the structure of the touch panel 1 can be simplified without affecting the accuracy of the signal transmission of the touch panel 1.
  • the NFC chip 3 may also send a reminder signal to the motherboard control chip 10.
  • the reminder signal can be, but is not limited to, a level signal, an edge signal or a pulse signal.
  • the NFC chip 3 receives the external NFC signal, the NFC chip 3 sends a reminder signal to the motherboard control chip 10, and the motherboard control chip 10 can process the external NFC signal in time according to the reminder signal.
  • the motherboard control chip 10 can quickly and accurately receive the NFC signal and process it after receiving the reminder signal, thereby effectively improving the response speed of the NFC chip 3, thereby increasing the inclusion The efficiency of the NFC information interaction between the terminal device with the touch panel 1 and the external NFC terminal.
  • the NFC antenna 9 is directly provided on the NFC setting layer 8 of the touch panel PCB 2 as an example for description.
  • the NFC chip 3 and the NFC antenna 9 in FIG. 7 can be integrated into one NFC tag 12.
  • the NFC tag 12 can be directly attached to the corresponding position, which can effectively simplify the manufacturing process of the touch panel PCB 2.
  • the NFC tag 12 can be made as large as possible without affecting the settings of other devices, which is beneficial to increase the NFC sensing area of the touch panel 1 (refer to FIG.
  • the present application also provides a terminal device.
  • the terminal device is an NFC terminal with a touch panel, which can realize command input through touch, and can also realize NFC communication with other external NFC terminals based on the internal NFC chip or tag. And other functions.
  • the terminal device can be, but is not limited to, a portable electronic device with a touch-sensitive surface (such as a touchpad), such as a mobile phone, a tablet computer, a wearable device with a wireless communication function (such as a smart watch), and the like.
  • the above-mentioned portable electronic device may also be other portable electronic devices, such as a laptop computer.
  • the above-mentioned electronic device may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (such as a touchpad).
  • the touch pad on the terminal device in the embodiment of the present application may be the touch pad 1 described in detail in the foregoing embodiment.
  • the notebook computer 14 includes a touchpad 1 as shown in FIGS. 7-9, and may also include a keyboard 17, and the touchpad 1 is arranged on the side of the keyboard 17, for example, In 3, the touch pad 1 is arranged on the side of the keyboard 17 away from the display screen to adapt to the user's usage habits.
  • the touch signal receiving wiring 501 and the touch signal transmitting wiring 601 are arranged on different layers of the touch panel PCB 2, which facilitates the realization
  • the reasonable arrangement of the touch signal receiving wiring 501 and the touch signal transmitting wiring 601 can make the gap area between the projection of the touch signal receiving wiring 501 and the touch signal transmitting wiring 601 in the stacking direction of the touch panel PCB 2 (
  • the area with width d or d1 in FIG. 5 can expose part or all of the NFC antenna 9 provided on the NFC installation layer 8.
  • the setting interval of the NFC antenna 9 can be made as large as possible, so that the NFC sensing on the touch panel 1 can be increased without affecting the touch accuracy of the touch panel 1. Area, thereby improving the accuracy of NFC communication between the terminal device and the external NFC terminal. In addition, since the NFC sensing area is not visible to the user in this application, this can effectively improve the aesthetics of the terminal device.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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Abstract

一种带NFC功能的触摸板及终端设备，该触摸板的触摸板PCB包括层叠设置的触摸信号接收层、触摸信号发射层以及NFC设置层，其中：触摸信号接收层设置有触摸信号接收走线，触摸信号发射层设置有触摸信号发射走线，触摸信号接收走线以及触摸信号发射走线与触摸芯片信号连接；NFC设置层设置有NFC天线，NFC天线与NFC芯片信号连接；触摸信号接收走线与触摸信号发射走线分别在层叠方向的投影之间存在露出NFC天线的空隙区；外部NFC信号可透过空隙区辐射于NFC天线，并传输于NFC芯片，NFC芯片根据外部NFC信号作出对应的交互响应。采用本申请的触摸板的终端设备具有较高的NFC交互准确性。

Description

一种带NFC功能的触摸板及终端设备
本申请要求在2019年6月28日提交中国国家知识产权局、申请号为201910580466.6、发明名称为“一种带NFC功能的触摸板及终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及终端技术领域，尤其涉及一种带NFC功能的触摸板及终端设备。
背景技术
近场通信(near field communication，NFC)是一种短距离的无线通信方式，其工作原理为：基于非接触式射频识别技术，利用磁场感应实现电子设备在近距离间的通信；其中，两个具有NFC功能的终端，即NFC终端，通过相互碰触或靠近，即可实现信息交换。
随着NFC技术的发展，以及用户体验要求的提升，带NFC功能的笔记本电脑等较大型的终端设备也逐步进入了市场。目前，笔记本电脑的NFC功能通常是依靠一个烧录有本机相关信息的NFC标签来实现，该NFC标签贴附于笔记本电脑的触摸板的玻璃板下方。由于对应于贴附NFC标签的触摸板的区域没有办法实现触摸功能，为了保证笔记本电脑的使用性，这就需要将NFC标签做的尽可能小，以减少笔记本电脑的触摸板上的盲触摸区域的面积；而当NFC标签太小时，又会导致与其交互的NFC终端读取标签信息不全或不准，从而影响交互准确性。
发明内容
本申请实施例提供一种带NFC功能的触摸板及终端设备，以在增大触摸板的NFC感应区的同时，提高触摸板的触摸准确性。
第一方面，本申请提供了一种带NFC功能的触摸板，包括：用于实现触摸板的触摸以及NFC功能的触摸板PCB(print circuit board，印制电路板)，以及设置于所述触摸板PCB上的触摸芯片、NFC芯片；所述触摸板PCB包括层叠设置的触摸信号接收层、触摸信号发射层、地线设置层以及NFC设置层，其中：在所述触摸信号接收层上设置有触摸信号接收走线，所述触摸信号发射层上设置有触摸信号发射走线，所述触摸信号接收走线以及所述触摸信号发射走线与所述触摸芯片信号连接；对应的，所述NFC设置层设置有NFC天线，所述NFC天线与所述NFC芯片信号连接；所述触摸信号接收走线在层叠方向的投影，与所述触摸信号发射走线在层叠方向的投影之间存在露出所述NFC天线的空隙区；当包含有该触摸板的终端设备与外部NFC终端进行交互时，外部NFC终端发射的外部NFC信号可透过所述空隙区辐射于所述NFC天线，并通过所述NFC天线传输于所述NFC芯片，所述NFC芯片根据所述外部NFC信号作出对应的交互响应。
通过将触摸信号接收走线以及触摸信号发射走线设置于触摸板PCB的不同层，有利于实现对触摸信号接收走线以及触摸信号发射走线的合理布置，从而可以使触摸信号接收走 线以及触摸信号发射走线在触摸板PCB层叠方向上的投影之间的空隙区足以露出设置于NFC设置层的NFC天线的部分甚至是全部。这样，在不影响其它器件设置的基础上，可使NFC天线的设置区间尽可能的大，从而可在不影响触摸板的触摸准确性的基础上，增大触摸板的NFC感应区，进而提高包含有该触摸板的终端设备与外部NFC终端交互的准确性。
在第一种可能的实现方式中，触摸板还包括主板控制芯片，所述主板控制芯片与触摸芯片信号连接，这样主板控制芯片可以在对触摸芯片接收的触摸信号进行处理后，向触摸芯片发出响应指令，触摸芯片接收到响应指令后作出对应的触摸响应。这样可使触摸板的触摸响应较为及时，且其响应准确性较高。
在第一种可能的实现方式中，主板控制芯片还与NFC芯片信号连接，当有外部NFC信号辐射于NFC天线后，会通过NFC芯片传输于主板控制芯片，主板控制芯片通过对该NFC信号进行处理后，向NFC芯片发出响应指令，NFC芯片接收到响应指令后作出对应的响应。这样可使触摸板的NFC响应较为准确，以实现包含有该触摸板的终端设备与外部NFC终端的信息交互。
在一种可能的实现方式中，当NFC芯片接收到外部NFC信号时，NFC芯片向主板控制芯片发出提醒信号，主板控制芯片可根据提醒信号及时的对外部NFC信号进行处理。其中，该提醒信号可以但不限于为电平信号、边沿信号或脉冲信号。
采用上述NFC信号传输以及处理的方式，可使主板控制芯片在接受到提醒信号后能够快速准确的识别NFC信号，并对其进行处理，这样可有效的提高NFC芯片的响应速度，从而提高包含有该触摸板的终端设备与外部NFC终端进行信息交互的效率。
在上述可能的实现方式中，均是将NFC芯片和NFC天线直接设置于触摸板PCB的NFC设置层上，除此之外，在另一种可能的实现方式中，还可以将NFC芯片和NFC天线集成为一个NFC标签。采用该种方式，在具体制作本申请的触摸板PCB时，可以直接将上述NFC标签贴附于触摸板PCB的NFC设置层上的对应位置，从而可有效的简化触摸板PCB的制作工艺。
在将本申请的触摸板应用于终端设备时，还可以在触摸板PCB上加设一层保护盖板作为触摸板的使用表面。此时，触摸板PCB的触摸信号接收层靠近该保护盖板设置，以使触摸板的触摸准确性较高。
第二方面，本申请还提供一种终端设备，该终端设备包括上述的触摸板。由于本申请的终端设备的触摸板在设置时，通过将触摸信号接收走线以及触摸信号发射走线设置于触摸板PCB的不同层，有利于实现对触摸信号接收走线以及触摸信号发射走线的合理布置，从而可以使触摸信号接收走线以及触摸信号发射走线在触摸板PCB层叠方向上的投影之间的空隙区可以露出设置于NFC设置层的NFC天线。这样，在不影响其它器件设置的基础上，可使NFC天线的设置区间尽可能的大，从而可在不影响触摸板的触摸准确性的基础上，增大触摸板的NFC感应区，进而可在提高该终端设备与外部NFC终端交互的准确性的基础上，提高该终端设备的触摸板的触摸准确性。
在一种可能的实现方式中，为了实现信息的录入，终端设备还可以包括按键盘，触摸板可以设置于按键盘的一侧，以方便按键盘和触摸板的配合使用。
附图说明
图1为一实施例NFC终端之间信息交互示意图；
图2为另一实施例的NFC终端之间信息交互示意图；
图3本申请实施例提供的终端设备的结构示意图；
图4本申请实施例提供的触摸板PCB的分解结构示意图；
图5本申请实施例提供的触摸板PCB的局部结构示意图；
图6为本申请实施例提供的触摸板PCB的结构示意图；
图7为本申请一实施例提供的触摸板的结构框图；
图8为本申请另一实施例提供的触摸板的结构框图；
图9为本申请另一实施例提供的触摸板的结构框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
首先介绍一下本申请的应用场景：NFC是一种短距离的无线通信方式，其工作原理为：基于非接触式射频识别技术，利用磁场感应实现电子设备间的近距离通信；其中，两个具有NFC功能的终端，即NFC终端，可以通过相互碰触或靠近来实现信息交换。参照图1，用户在通过NFC终端13进行信息交互时，可以使两个NFC终端13相互靠近，这样可使携带有目标信息的NFC信号15传输至对方的NFC终端13中，然后通过对NFC信号15的识别、判断和分析来完成两个NFC终端13之间的信息交互。
NFC终端支持三种工作模式，分别为卡摸拟模式、点对点模式以及读卡器模块，其中，NFC终端之间采用点对点模式进行信息交互的技术较为成熟。在点对点模式中，两个NFC终端间可直接交换视频、文件以及图像等数据信息，其信息交互较为便捷。
参照图2，图2可表示一种带有NFC功能的笔记本电脑14与外部NFC终端13之间采用点对点模式进行信息交互的过程。该笔记本电脑14在出厂前，内部会设置有NFC标签12，用于实现NFC通信。每个NFC标签12会烧录本机相关信息，以确保外部NFC终端13靠近或者触碰NFC标签12的时候识别该笔记本电脑14并与其完成配对。在图2所示的笔记本电脑14中，该NFC标签12通常贴附于笔记本电脑14的触摸板1的玻璃板下方。由于触摸板1中对应于贴附有NFC标签12的区域没有办法实现触摸功能(构成盲触摸区域)，而为了保证笔记本电脑14的使用性，这就需要将NFC标签12做的尽可能小，以减少笔记本电脑14的触摸板1上的盲触摸区域的面积；而当NFC标签12太小时，又会导致与其交互的NFC终端13读取NFC标签12信息不全或不准，从而导致点对点碰传失效。
为了解决上述问题，本申请提供一种带NFC功能的触摸板及终端设备，以在不影响触摸板的触摸准确性的前提下，增大触摸板上的NFC感应区面积，以提高NFC通信的准确性。
首先，参照图7至图9，本申请提供了一种带NFC功能的触摸板1，该触摸板1包括印刷电路板(PCB)2，所述PCB 2上包括用于实现触摸的区域以及用于实现NFC功能的区域，以及设置于PCB 2上的触摸芯片3、NFC芯片4；再参照图4，触摸板PCB 2可以为层叠设置的四层结构，包括触摸信号接收层5、触摸信号发射层6、地线设置层7以及NFC设置层8，其中：触摸信号接收层5上的图案为触摸信号接收走线501构成的图案，触摸信号发射层6上的图案为触摸信号发射走线601构成的图案，触摸信号接收走线501以及触 摸信号发射走线601与触摸芯片3(图4中未示出，可参照图7)信号连接。
再参照图3，触摸板1在应用于终端设备(例如图3中的笔记本电脑14)上时，还会在如图4所示的触摸板PCB 2上加设一层保护盖板(图中未示出)作为触摸板1的使用表面，此时，触摸板PCB 2设置于保护盖板下方，当然，在触摸板PCB 2与保护盖板之间还可以设置其它结构，而触摸板PCB 2触摸信号接收层5靠近该保护盖板设置。由于触摸信号接收走线501和触摸信号发射走线601分别设置于不同层，这样在具体设置触摸信号接收走线501和触摸信号发射走线601时，可充分利用所处层的空间进行布线，从而使触摸板1的触摸感应区较大，以有利于提高触摸板1的触摸准确性。
继续参照图4和图7，在NFC设置层8上设置有NFC天线9，NFC天线9与NFC芯片4信号连接；参照图4和图5，图5为触摸信号接收层5和触摸信号发射层6叠置后的局部结构示意图，其中，可以看出触摸信号接收走线501在层叠方向的投影，与触摸信号发射走线601在层叠方向的投影之间存在露出NFC天线9的空隙区，该空隙区的宽度可以用图中的d或者d1表示，可以理解的是，该空隙区在各处的宽度可以相同也可以不同；这样，同时参照图3和图7，当包含有该触摸板1的终端设备处于NFC磁场或与外部NFC终端13进行交互时，上述空隙区可对外部NFC终端13发射的外部NFC信号15进行有效的避让，从而使外部NFC信号15可直接辐射于NFC天线9，并通过NFC天线9传输于NFC芯片4，NFC芯片4根据外部NFC信号15作出对应的交互响应，从而使得NFC通信过程更准确。
参照图4，通过将触摸信号接收走线501以及触摸信号发射走线601设置于触摸板PCB2的不同层，可以使触摸信号接收走线501以及触摸信号发射走线601在触摸板PCB 2层叠方向上的投影之间的空隙区，足以露出设置于NFC设置层8上的NFC天线9的部分甚至是全部。这样，在不影响其它器件设置的基础上，可使NFC天线9的设置区间尽可能的大，从而可在不影响触摸板的触摸准确性的基础上，增大触摸板的NFC感应区，进而提高设置有该触摸板的终端设备与外部NFC终端交互的准确性。并且，参照图4，在将触摸板PCB 2应用于终端设备时，不需要使用额外的设备对本机相关信息进行烧录，而是可以采用终端设备***录的方式实现其NFC功能，这样可有效的解决产线及售后复杂的问题。
本申请的触摸板可应用于各种设置有触摸板的终端设备，可以是便携式电子设备，诸如手机、平板电脑、具备无线通讯功能的可穿戴设备(如智能手表)等。上述便携式电子设备也可以是其它便携式电子设备，诸如具有触敏表面(例如触控面板)的膝上型计算机(laptop)等。还应当理解的是，在本申请其他一些实施例中，上述电子设备也可以不是便携式电子设备，而是具有触敏表面(例如触控板)的台式计算机。为了便于对本方案的理解，以下均以具有触摸板的笔记本电脑为例进行说明。
参照图7，图7为本申请一种实施方式的触摸板的结构示意图，在该图中，采用框图的形式表示了各结构之间的通信连接关系，其图框的大小不代表对应结构的实际设置区间或者区间比例。例如，用网格图框表示了触控板触摸区11，其只代表触摸板1上包括这样的一个区域，但不代表该区域的具体设置位置以及区域大小。本实施例中，触摸芯片3、触控板触摸区11、NFC芯片4以及NFC天线9均设置在触摸板PCB 2上，触摸板1还可以包括与触摸芯片3信号连接的主板控制芯片10，其中主板控制芯片10可以但不限于通过集成电路总线16(inter-integrated circuit，IIC)连接。结合图4，这样触摸芯片3在经触摸信号接收走线501接收到触摸信号后，将触摸信号传输给主板控制芯片10进行处理，之后，主 板控制芯片10将对应的响应指令经触摸信号发射走线601发送给触摸芯片3，触摸芯片3接收到响应指令后作出对应的触摸响应。
例如，用户通过图3所示的笔记本电脑14的触摸板1给出单击动作信号，结合图4，则该单击动作信号通过信号接收走线501传输到触摸芯片3后，再经触摸芯片3传输给主板控制芯片10进行分析及处理，主板控制芯片10将对应的单击响应指令传回给触摸芯片3，并由触摸芯片3给出对应的单击响应，这样可使触摸板1的触摸响应较为及时，且其响应准确性较高。
参照图8，图8为本申请另一种实施方式的触摸板的结构示意图，该实施方式的触摸板1与上一实施方式的不同在于，主板控制芯片10同时与触摸芯片3和NFC芯片4信号连接，其中，主板控制芯片10可以通过同一个通讯接口与触摸芯片3以及NFC芯片4连接；或，主板控制芯片10通过不同的通讯接口分别与触摸芯片3以及NFC芯片4连接。参照图8，在图8中，主板控制芯片10通过同一个通讯接口与触摸芯片3以及NFC芯片4连接，这时，如果用户端向图3所示的笔记本电脑14的触摸板1发出了触摸信号，则触摸芯片3接收该触摸信号并完成与主板控制芯片10之间的信号传输；同样的，结合图3和图8，若外部NFC终端13向该笔记本电脑14的触摸板1发出了NFC信号15，则NFC芯片3接收该NFC信号15并传输给主板控制芯片10，主板控制芯片10对该NFC信号15进行处理以完成与NFC终端13的配对，并将处理后的信号传输给NFC芯片3，以使其给出对应的响应。这样，可在不影响触摸板1信号传输的准确性的基础上，可以简化触摸板1的结构。
为了提高包含有该触摸板1的终端设备与外部NFC终端进行信息交互的效率，参照图9，在图9所示的实施方式中，NFC芯片3还可以向主板控制芯片10发出提醒信号，该提醒信号可以但不限于为电平信号、边沿信号或脉冲信号。这样，当NFC芯片3接收到外部NFC信号时，NFC芯片3向主板控制芯片10发出提醒信号，主板控制芯片10可根据提醒信号及时的对外部NFC信号进行处理。
采用该种信号传输以及处理的方式，可使主板控制芯片10在接受到提醒信号后快速准确的接收NFC信号，并对其进行处理，从而可有效的提高NFC芯片3的响应速度，进而提高包含有该触摸板1的终端设备与外部NFC终端进行NFC信息交互的效率。
在以上可能的实现方式中，均是将NFC天线9直接设置于触摸板PCB 2的NFC设置层8上为例进行说明的，除此之外，参照图6，在另一种可能的实现方式中，还可以将例如图7中的NFC芯片3和NFC天线9集成为一个NFC标签12。这样，结合图4和图6，在本申请的触摸板PCB 2的具体制作过程中，可以将该NFC标签12直接贴附于对应的位置，其可以有效的简化触摸板PCB 2的制作工艺。其中，该NFC标签12可以在不影响其它器件设置的基础上做得尽可能的大，从而有利于增大触摸板1(参照图3)的NFC感应区，提高其交互准确性。并且，继续参照图3，将该实施例中的触摸板1应用于笔记本电脑14时，图6实施例中所示的NFC标签12为用户不可见，其有利于提高笔记本电脑14的整机美观性。
第二方面，本申请还提供一种终端设备，该终端设备为具有触摸板的NFC终端，可以实现通过触摸进行指令输入，也可以实现基于内部的NFC芯片或标签与外界其他NFC终端进行NFC通信等功能。该终端设备可以但不限于为具有触敏表面(例如触控板)的便携式电子设备，诸如手机、平板电脑、具备无线通讯功能的可穿戴设备(如智能手表)等。上述 便携式电子设备也可以是其它便携式电子设备，诸如膝上型计算机(laptop)等。还应当理解的是，在本申请其它一些实施例中，上述电子设备也可以不是便携式电子设备，而是具有触敏表面(例如触控板)的台式计算机等。其中本申请实施例这里的终端设备上的触摸板可以为上述实施例详细介绍的触摸板1。
以笔记本电脑为例，参照图3，该笔记本电脑14包括如图7至图9所示的触摸板1，还可以包括按键盘17，触摸板1设置在按键盘17的一侧，例如在图3中，触摸板1设置在按键盘17远离显示屏的一侧，以适应用户的使用习惯。结合图3和图4，由于本申请的笔记本电脑14的触摸板1在设置时，通过将触摸信号接收走线501以及触摸信号发射走线601设置于触摸板PCB 2的不同层，有利于实现对触摸信号接收走线501以及触摸信号发射走线601的合理布置，从而可以使触摸信号接收走线501以及触摸信号发射走线601在触摸板PCB 2层叠方向上的投影之间的空隙区(图5中宽度为d或d1的区域)可以露出设置于NFC设置层8的NFC天线9的部分或者全部。这样，在不影响其它器件设置的基础上，可使NFC天线9的设置区间尽可能的大，从而可在不影响触摸板1的触摸准确性的基础上，增大触摸板1上的NFC感应区，进而提高该终端设备与外部NFC终端进行NFC通信的准确性。并且，由于在本申请中NFC感应区的设置为用户不可见，这样可有效的提高终端设备的整机美观性。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (11)

  1. 一种带NFC功能的触摸板，其特征在于，包括：触摸板PCB，设置于所述触摸板PCB上的触摸芯片以及NFC芯片，且所述触摸板PCB包括层叠设置的触摸信号接收层、触摸信号发射层以及NFC设置层，其中：
    所述触摸信号接收层设置有触摸信号接收走线，所述触摸信号发射层设置有触摸信号发射走线，所述触摸信号接收走线以及所述触摸信号发射走线分别与所述触摸芯片信号连接；
    所述NFC设置层设置有NFC天线，所述NFC天线与所述NFC芯片信号连接；所述触摸信号接收走线在层叠方向的投影，与所述触摸信号发射走线在层叠方向的投影之间存在露出所述NFC天线的空隙区；外部NFC信号可透过所述空隙区辐射于所述NFC天线，并通过所述NFC天线传输于所述NFC芯片，所述NFC芯片用于根据所述外部NFC信号作出对应的交互响应。
  2. 根据权利要求1所述的触摸板，其特征在于，还包括主板控制芯片，所述主板控制芯片与所述触摸芯片信号连接，用于对所述触摸芯片接收的触摸信号进行处理后生成触摸指令，所述触摸芯片根据所述触摸指令作出对应的触摸响应。
  3. 根据权利要求2所述的触摸板，其特征在于，所述主板控制芯片还与所述NFC芯片信号连接，用于对所述NFC芯片接收的所述外部NFC信号进行处理后发送于所述NFC芯片。
  4. 根据权利要求3所述的触摸板，其特征在于，所述主板控制芯片通过同一个通讯接口与所述触摸芯片以及所述NFC芯片连接；或，所述主板控制芯片通过不同的通讯接口分别与所述触摸芯片以及所述NFC芯片连接。
  5. 根据权利要求3或4所述的触摸板，其特征在于，当所述NFC芯片接收到外部NFC信号时，所述NFC芯片向所述主板控制芯片发出提醒信号，所述主板控制芯片根据所述提醒信号对所述外部NFC信号进行处理。
  6. 根据权利要求5所述的触摸板，其特征在于，所述提醒信号为电平信号、边沿信号或脉冲信号。
  7. 根据权利要求1所述的触摸板，其特征在于，所述NFC芯片和所述NFC天线集成为NFC标签，所述NFC标签贴附于所述NFC设置层。
  8. 根据权利要求1所述的触摸板，其特征在于，所述NFC天线的全部从所述空隙区露出。
  9. 根据权利要求1～8任一项所述的触摸板，其特征在于，所述触摸板还包括保护盖板，所述触摸信号接收层靠近所述保护盖板设置。
  10. 一种终端设备，其特征在于，包括如权利要求1～9任一项所述的触摸板。
  11. 根据权利要求10所述的终端设备，其特征在于，所述终端设备还包括按键盘，所述触摸板设置于所述按键盘的一侧。
PCT/CN2020/098389 2019-06-28 2020-06-28 一种带nfc功能的触摸板及终端设备 WO2020259660A1 (zh)

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