WO2024007408A1 - 电子设备及其具有射频信号处理功能的红外触摸框 - Google Patents

电子设备及其具有射频信号处理功能的红外触摸框 Download PDF

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Publication number
WO2024007408A1
WO2024007408A1 PCT/CN2022/110396 CN2022110396W WO2024007408A1 WO 2024007408 A1 WO2024007408 A1 WO 2024007408A1 CN 2022110396 W CN2022110396 W CN 2022110396W WO 2024007408 A1 WO2024007408 A1 WO 2024007408A1
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WO
WIPO (PCT)
Prior art keywords
radio frequency
frequency signal
infrared
circuit board
touch frame
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Application number
PCT/CN2022/110396
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English (en)
French (fr)
Inventor
李振乐
李旭东
韦昌庆
Original Assignee
深圳市康冠商用科技有限公司
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Application filed by 深圳市康冠商用科技有限公司 filed Critical 深圳市康冠商用科技有限公司
Publication of WO2024007408A1 publication Critical patent/WO2024007408A1/zh

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Classifications

    • 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
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
    • 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
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual

Definitions

  • the present application relates to the technical field of electronic equipment, and in particular to an electronic equipment and an infrared touch frame with a radio frequency signal processing function.
  • Touch display terminals, electronic whiteboards and touch panels are widely used in production and life. Based on the traditional touch function, users can also use a writing pen to input corresponding operation information. During specific operations, the writing pen can Detect the pressure value of the user's operation on the display screen of the main device, and transmit the pressure value to the main device; however, the existing technical methods use the receiver of the writing pen as an external device to be plugged into the main device, and the pressure value is transmitted to the main device through the receiving device. The receiver receives the pressure value information of the writing pen and outputs it to the main device. However, in this traditional technical method, the receiver of the writing pen is independent. During use, it will occupy the external space of the main device and is easily lost. It is very difficult to use during use. inconvenient. Therefore, the receiver of the writing pen in the prior art method has the problem of being inconvenient to use.
  • the embodiment of the present application provides an electronic device and an infrared touch frame with a radio frequency signal processing function, aiming to solve the problem of inconvenient use of the writing pen receiver in the prior art method.
  • embodiments of the present application provide an infrared touch frame with a radio frequency signal processing function.
  • the infrared touch frame is arranged on the edge of the main body of the display device, wherein the infrared touch frame is close to the side of the main body of the display device. Equipped with filter strip;
  • At least the infrared touch frame forms an accommodation space
  • a circuit board, an infrared light element and a radio frequency signal element are provided in the accommodation space; the circuit board is electrically connected to the infrared light element and the radio frequency signal element respectively;
  • Both the infrared signal of the infrared light element and the radio frequency signal of the radio frequency signal element are transmitted through the filter strip.
  • the transmission information of the radio frequency signal includes pressure-sensitive information.
  • the radio frequency signal element includes a radio frequency IC and a radio frequency antenna, and the radio frequency antenna is arranged on the edge of the filter strip.
  • the infrared touch frame with radio frequency signal processing function wherein the radio frequency signal element also includes a power increasing module;
  • the radio frequency IC is connected to the radio frequency antenna through the power increasing module.
  • the radio frequency signal element is independently arranged outside the circuit board, and the radio frequency signal element is electrically connected to the components on the circuit board through external wiring materials. .
  • the radio frequency signal element is integrated on the circuit board, and the radio frequency signal element communicates with the elements on the circuit board through the wires on the circuit board.
  • the devices are electrically connected.
  • the circuit board is parallel to the display screen of the display device body.
  • the circuit board is perpendicular to the display screen of the display device body.
  • embodiments of the present application also provide an electronic device.
  • the user uses a writing pen to operate on the display screen of the electronic device, wherein the electronic device includes a display device body and a display device as described in the first aspect.
  • Infrared touch frame with radio frequency signal processing function ;
  • the infrared light element detects the infrared detection information that the writing pen blocks the infrared signal, and obtains the infrared detection information and transmits it to the circuit board; the writing pen and the radio frequency signal element communicate through radio frequency signals.
  • the electronic device wherein the circuit board obtains the current touch information of the writing pen in real time based on the infrared detection information and the radio frequency signal, and the touch information includes the touch position and touch position of the writing pen. Control stress.
  • Embodiments of the present application provide an electronic device and an infrared touch frame with a radio frequency signal processing function.
  • the infrared touch frame is assembled on the edge of the main body of the display device; at least the infrared touch frame forms an accommodation space; and a circuit is provided in the accommodation space. board, infrared light element and radio frequency signal element; the circuit board is electrically connected to the infrared light element and radio frequency signal element respectively; the infrared touch frame is equipped with a filter strip on the side close to the main body of the display device; the infrared signal of the infrared light element and the radio frequency signal element are RF signals are transmitted through the filter strip.
  • the above-mentioned infrared touch frame integrates radio frequency signal components into the infrared touch frame for installation, and both infrared and radio frequency signals are transmitted through the filter strip, which can save the external space of the device, avoid the loss of the receiver, and facilitate the user For use; at the same time, the RF signal directly penetrates the filter strip, which can improve the transmission efficiency of the RF signal.
  • Figure 1 is a cross-sectional structural diagram of an infrared touch frame with radio frequency signal processing function provided by an embodiment of the present application
  • Figure 2 is another cross-sectional structural diagram of an infrared touch frame with radio frequency signal processing function provided by an embodiment of the present application
  • Figure 3 is another cross-sectional structural diagram of an infrared touch frame with radio frequency signal processing function provided by an embodiment of the present application
  • Figure 4 is a partial structural diagram of an infrared touch frame with radio frequency signal processing function provided by an embodiment of the present application
  • FIG. 5 is another partial structural diagram of an infrared touch frame with radio frequency signal processing function provided by an embodiment of the present application.
  • Figure 6 is another partial structural diagram of an infrared touch frame with radio frequency signal processing function provided by an embodiment of the present application.
  • Figure 7 is another partial structural diagram of an infrared touch frame with radio frequency signal processing function provided by an embodiment of the present application.
  • Figure 8 is a structural diagram of a radio frequency signal component provided by an embodiment of the present application.
  • Figure 9 is another structural diagram of a radio frequency signal component provided by an embodiment of the present application.
  • Figure 10 is a usage effect diagram of the electronic device provided by the embodiment of the present application.
  • the embodiment of the present application provides an infrared touch frame 1 with a radio frequency signal processing function.
  • the infrared touch frame 1 is assembled on the display device body 2 edge, the display device main body 2 is a device including a display screen, wherein the infrared touch frame 1 is provided with a filter strip 12 on the side close to the display device main body 2, and at least the infrared touch frame 1 forms a receiving space ;
  • the accommodating space is provided with a circuit board 13, an infrared light element 131 and a radio frequency signal element 14; the circuit board 14 is electrically connected to the infrared light element 131 and the radio frequency signal element 14 respectively; the infrared light Both the infrared signal of the element 131 and the radio frequency signal of the radio frequency signal element 14 are transmitted through the filter strip 12 .
  • a common infrared touch frame 1 has a four-sided infrared structure, that is, all four infrared frames are equipped with infrared light elements.
  • this solution can also be applied to a single-sided infrared touch frame or a double-sided infrared touch frame, and is not specifically limited in this application.
  • a filter strip 12 is provided above the infrared touch frame 1 close to the edge of the display device body 2 .
  • the filter strip 12 can be independently provided on the infrared touch frame 1, as shown in Figure 3; it can also be provided between the infrared touch frame 1 and the display device body 2, as shown in Figure 1 or 2.
  • the specific position of the filter strip is not limited.
  • At least the accommodation space formed by the infrared touch frame 1 may be formed by the infrared touch frame alone, as shown in Figure 3; or it may be formed by the infrared touch frame and the main body of the display device, as shown in Figure 2.
  • the specific formation method is not limited in this plan.
  • the infrared touch frame 1 includes a frame body 11 and a filter strip 12 disposed between the frame body 11 and the display screen of the display device body 2 .
  • the infrared light element 131 can be arranged facing the filter strip 12 or not arranged facing the filter strip 12; wherein, if the infrared light element 131 is arranged facing the filter strip 12, then the infrared light element 131
  • the infrared rays emitted by the infrared emitter are directly transmitted through the filter bar 12; the infrared light element 131 can also be set up without facing the filter bar 12.
  • a reflector is set up to reflect the infrared rays emitted by the infrared light element 131.
  • the reflected infrared rays are transmitted through the filter bar 12.
  • Filtered light strip 12 transmits.
  • the infrared touch frame 1 of the present application is integrated with a radio frequency signal element 14 inside.
  • the radio frequency signal element 14 can be a component used to transmit and receive 2.4G radio frequency signals.
  • the writing pen 3 can be provided with a radio frequency module 31 for transmitting and receiving 2.4G radio frequency signals.
  • the radio frequency signal element 14 is electrically connected to the circuit board 13.
  • the radio frequency signal element 14 is electrically connected to the processing unit (such as an MCU chip) in the radio frequency signal element 14 through a serial port.
  • the tip of the writing pen is in contact with the pressure sensor.
  • the main control chip in the writing pen collects the voltage of the pressure sensor through the ADC. For example, the voltage value changes with the pressure of the pen tip. Then the pressure value is obtained through conversion.
  • the main control chip converts the pressure value into a radio frequency signal through the radio frequency module and sends it to the radio frequency signal element 14 through wireless transmission.
  • the radio frequency signal transmission information includes the pressure-sensitive information of the writing pen.
  • the radio frequency signal element 14 can send radio frequency signals to the writing pen through wireless transmission.
  • the radio frequency signal element 14 includes a radio frequency IC 141 and a radio frequency antenna 142 , and the radio frequency antenna 142 is disposed at the edge of the filter strip 12 .
  • the radio frequency antenna 142 can be placed close to the edge of the filter strip 12 , for example, the distance between the radio frequency antenna 142 and the filter strip 12 is set to 0 ⁇ 2 cm.
  • the radio frequency IC and the radio frequency antenna are arranged coplanar or non-coplanar.
  • the structure of the radio frequency signal element 14 is shown in Figure 8 .
  • the radio frequency antenna 142 of the radio frequency signal element 14 can also be arranged at any position in the accommodation space.
  • the radio frequency signal element 14 further includes a power increasing module 143.
  • the radio frequency IC 141 communicates with the radio frequency IC 141 through the power increasing module 143.
  • Radio frequency antenna 142 is connected.
  • the radio frequency IC 141 is used to send the radio frequency signal to be output to the power increasing module 143.
  • the power increasing module 143 is used to power enhance the radio frequency signal to obtain a radio frequency amplified signal.
  • the radio frequency amplified signal can be sent to the writing pen through the radio frequency antenna 142.
  • a radio frequency driver amplifier model AH102 is used as a radio frequency module.
  • the structure of the radio frequency signal element 14 is shown in Figure 9.
  • the infrared light element 131 is composed of an infrared transmitter and an infrared receiver.
  • the infrared signal is emitted by the infrared emitter of the infrared light element 131.
  • the infrared ray is covered on the upper layer of the display screen.
  • the infrared receiver installed on the side wall opposite to the infrared emitter can receive the infrared emitter.
  • Infrared rays when the user uses a writing pen to operate on the display screen of the display device body 2, the writing pen blocks the infrared rays on the upper layer of the display screen, and the infrared receiver of the infrared light element 131 detects the infrared signals blocked by the writing pen 3. Detect, obtain infrared detection information and transmit it to the circuit board 13 .
  • the radio frequency signal element 14 is independently provided outside the circuit board 13 , and the radio frequency signal element 14 is electrically connected to the components on the circuit board 13 through external wiring materials.
  • the radio frequency signal element 14 can be arranged independently of the circuit board 13 , and at this time the radio frequency signal element 14 is electrically connected to the components on the circuit board 13 through external wiring materials.
  • the specific structure is shown in Figure 4.
  • the radio frequency signal element 14 is integrated on the circuit board 13 , and the radio frequency signal element 14 is connected to the components on the circuit board 13 through the wires on the circuit board 13 Electrical connection.
  • the radio frequency signal element 14 can be integrated and installed on a circuit board.
  • the components on the circuit board are electrically connected through wires.
  • the radio frequency signal element 14 is connected to the components on the circuit board 13 through the wires. Electrical connection, the specific structure is shown in Figure 5. Integrating the radio frequency signal element 14 on the circuit board can further improve the integration of the internal components of the infrared touch frame 1 and improve the structural compatibility, so that the radio frequency signal element 14 takes up less space and reduces the cost of the infrared touch frame 1 Cross-sectional size, the space utilization inside the infrared touch frame 1 is higher.
  • the circuit board 13 is parallel to the display screen of the display device body 2 , and the infrared light element 131 is disposed on the top surface of the circuit board 13 .
  • the circuit board 13 includes two surfaces.
  • the circuit board 13 can be set to be parallel to the display screen.
  • the direction in which the infrared light element 131 transmits infrared rays and receives infrared rays is parallel to the display screen.
  • the infrared light element 131 is arranged on The top surface of the circuit board 13 (the TOP layer of the circuit board 13).
  • the specific structure is shown in Figure 1. When the display screen is placed flat, the circuit board 13 is also in a horizontal state; when the display screen is placed sideways, the circuit board 13 is also in a side-standing state.
  • the circuit board 13 is perpendicular to the display screen of the display device body 2 , and the infrared light element 131 is disposed on a side of the circuit board 13 facing the filter strip 12 .
  • the circuit board 13 can also be set perpendicular to the display screen, that is, the circuit board 13 is set to be "vertical".
  • the circuit board 13 includes two surfaces; the infrared light element 131 emits infrared rays and receives infrared rays in the same direction. Parallel to the display screen, the infrared light element 131 is disposed on a side of the circuit board 13 facing the filter strip 12 .
  • the specific structure is shown in Figure 2. When the display screen is placed flat, the circuit board 13 is in a side-standing state; when the display screen is placed side-by-side, the circuit board 13 is in a flat state.
  • the setting direction of the circuit board 13 can be adjusted according to the size of the display screen and the actual application scenario. For example, for a large-size display screen included in an electronic whiteboard, the circuit board 13 can be set to "vertical"; for a small screen included in a tablet computer, size display screen, the circuit board 13 can be set to "horizontal” to reduce the thickness of the tablet computer.
  • the radio frequency antenna 142 and the infrared light element 131 are disposed on the same surface of the circuit board 13 .
  • the radio frequency antenna 142 and the infrared light element 131 are disposed on two opposite sides of the circuit board 13 .
  • the infrared light component 131 includes multiple sub-components, and the sub-components are an infrared transmitter and an infrared receiver; if the infrared light component 131 and the radio frequency antenna 142 are disposed on the same side of the circuit board 13, the radio frequency antenna 142 can be disposed on the sub-component.
  • the specific arrangement structure of the radio frequency antenna 142 is as shown in Figure 6.
  • the radio frequency antenna 142 can be disposed below the sub-component.
  • the circuit board 13 is perpendicular to the display screen of the display device body 2, the radio frequency antenna 142
  • Figure 7 The specific setup structure is shown in Figure 7.
  • the radio frequency antenna 142 When the radio frequency antenna 142 is integrated on the circuit board 13 , the radio frequency antenna 142 can be placed on the same side as the infrared light element 131 , or the radio frequency antenna 142 can be placed on a different side from the infrared light element 131 . In the actual application process, the setting method of integrating the radio frequency antenna 142 on the circuit board 13 can be flexibly adjusted.
  • the radio frequency antenna 142 and the infrared light element 131 can be arranged on the same side of the circuit board 13; after the infrared signal and the radio frequency signal pass through the filter strip, they can be directly received by the corresponding receiver on the circuit board 13, which can further improve the efficiency of the radio frequency signal. transmission efficiency.
  • an embodiment of the present application also provides an electronic device, wherein the electronic device includes a display device body 2 and an infrared touch frame 1 with a radio frequency signal processing function as described in the above embodiment.
  • the user uses The writing pen 3 operates on the display screen of the electronic device; the infrared light element 131 detects the infrared detection information that the writing pen 3 blocks the infrared signal, obtains the infrared detection information and transmits it to the circuit board, and the writing pen 3 Communication with the radio frequency signal element 14 is carried out through radio frequency signals.
  • the circuit board 13 obtains the current touch information of the writing pen 3 in real time based on the infrared detection information and the radio frequency signal.
  • the touch information includes the touch position and touch pressure of the writing pen.
  • the infrared receiver of the infrared light element 131 detects the infrared signal blocked by the writing pen 3 to obtain the infrared detection information and transmit it to the circuit board 13 .
  • the infrared signal is received by the infrared light element 131
  • the infrared transmitter emits; the writing pen 3 detects the pressure value information of the pen tip, and converts it into a radio frequency signal and then transmits it to the circuit board 13 through the radio frequency signal element 14; the circuit board 13 detects the information according to the infrared And the radio frequency signal acquires the current touch information of the writing pen 3 in real time; the touch information includes the touch position and touch pressure of the writing pen.
  • the writing pen 3 can also be provided with buttons.
  • the main control chip of the writing pen obtains the key information of the long press/short press state of the button, and sends all data packets to the radio frequency signal through the radio frequency module 31 on the writing pen 3.
  • Signal element 14, then the data packet at this time includes pressure value information and key information.
  • the main control chip of the writing pen scans the key status and obtains the key information.
  • the buttons of the writing pen mainly include 2 buttons: KEY1 and KEY2; the button status mainly includes 6 states: short press of KEY1, long press of KEY1 for 1.5 ⁇ 8S, and long press of KEY1 for more than 8S. Short press KEY2, long press KEY2 for 1.5 ⁇ 8S, long press KEY2 for more than 8S.
  • the key is scanned in order to trigger the key function in time.
  • the interrupt scanning method is used. When the IO port corresponding to the key changes from high level to low level, the GPIO port interrupt is triggered. Define the triggering time of the three states of the button.
  • the IO port corresponding to the button changes from low level to high level, it is regarded as a button trigger.
  • the duration of the low level is less than or exceeds the defined short press time (less than 1.5S), 1.5S, and 8S, it is regarded as a short press of the button, a long press of 1.5 ⁇ 8S, and a long press of 8S, a total of 3 times. state.
  • the corresponding radio frequency signal is sent to the radio frequency signal element 14 according to the corresponding functional requirements to realize the triggering of the key function.
  • the implementation of this key function includes key debounce processing to improve the accuracy of the keys.
  • the key functions can correspond to page turning, sound adjustment, picture brightness and other functions.
  • the pairing of a writing pen and an electronic product can realize a scenario where one pen is suitable for multiple machines, or a scenario where it can be paired on one machine or replaced with another writing pen for use. Once paired, there is no need to pair again.
  • the principle of pairing implementation is that the radio frequency module 31 and radio frequency signal element 14 of the writing pen are switched to the pairing mode and both use the same communication address, that is, the broadcast address.
  • the radio frequency module 31 serves as the transmitting end, and the radio frequency signal element 14 serves as the receiving end; or the radio frequency module 31 serves as the receiving end, and the radio frequency signal element 14 serves as the transmitting end, and then after the transmitting end sends its own unique communication address, if a receiving end receives it
  • the transmitting end's unique communication address, then the receiving end will switch the communication address to the received address, before sending data to the transmitting end, and then both parties switch to the transmitting end's unique communication address, so that both parties can achieve a One-to-one communication to achieve pairing function.
  • the communication serial port provided in the writing pen plays a role in mutual communication between the radio frequency module 31 and the radio frequency signal element 14 in the circuit board 13.
  • the radio frequency signal element 14 interacts with the writing pen through the communication serial port and then through the radio frequency module 31, and obtains pressure sensitivity value information.
  • the processing unit of the circuit board 13 will upload the coordinate information and pressure-sensing information of the touched object to the PC and Android system when a touch object is touched.
  • the infrared touch frame forms an accommodation space; the accommodation space is provided with a circuit board, an infrared light element and a radio frequency signal element; and a circuit.
  • the board is electrically connected to the infrared light element and the radio frequency signal element respectively;
  • the infrared touch frame is provided with a filter strip on the side close to the main body of the display device; the infrared signal of the infrared light element and the radio frequency signal of the radio frequency signal element are transmitted through the filter strip.
  • the above-mentioned infrared touch frame integrates radio frequency signal components into the infrared touch frame for installation, and both infrared and radio frequency signals are transmitted through the filter strip, which can save the external space of the device, avoid the loss of the receiver, and facilitate the user For use; at the same time, the RF signal directly penetrates the filter strip, which can improve the transmission efficiency of the RF signal.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Optical Communication System (AREA)

Abstract

一种电子设备及其具有射频信号处理功能的红外触摸框（1），至少由红外触摸框（1）形成容置空间；容置空间内设置有电路板（13）、红外光元件（131）及射频信号元件（14）；电路板（13）分别与红外光元件（131）及射频信号元件（14）电连接，红外触摸框（1）靠近显示设备主体（2）一侧设有滤光条（12）；红外光元件（131）的红外信号及射频信号元件（14）的射频信号均穿过滤光条（12）进行传输。上述红外触摸框（1），将射频信号元件（14）集成于所述红外触摸框（1）内进行设置，且红外线及射频信号均穿透所述滤光条（12）进行传输，可节省设备的外部空间、避免接收器丢失，方便用户进行使用；同时射频信号直接穿透滤光条（12），可提高射频信号的传输效率。

Description

电子设备及其具有射频信号处理功能的红外触摸框
本申请是以申请号为202210846988.8、申请日为2022年7月6日的中国专利申请为基础，并主张其优先权，该申请的全部内容在此作为整体引入本申请中。
技术领域
本申请涉及电子设备技术领域，尤其涉及一种电子设备及其具有射频信号处理功能的红外触摸框。
背景技术
触控显示终端、电子白板及触控板广泛应用于广泛应用于生产生活中，在传统触控功能基础上，用户还可使用书写笔输入相应操作信息，在进行具体操作过程中，书写笔可检测用户在主体设备的显示屏上进行操作的压力值，并将压力值传输至主体设备；然而现有技术方法均是采用将书写笔的接收器作为外接设备插接至主体设备上，通过接收器接收书写笔的压力值信息并输出至主体设备，然而这一传统技术方法中书写笔的接收器是独立的，在使用过程中会占用主体设备的外部空间，且易丢失，在使用时十分不方便。因而，现有技术方法中书写笔的接收器存在使用不方便的问题。
申请内容
本申请实施例提供了一种电子设备及其具有射频信号处理功能的红外触摸框，旨在解决现有技术方法中书写笔的接收器所存在的使用不方便的问题。
第一方面，本申请实施例提供了一种具有射频信号处理功能的红外触摸框，所述红外触摸框设置于显示设备主体的边缘，其中，所述红外触摸框靠近所述显示设备主体一侧设有滤光条；
至少由所述红外触摸框形成容置空间；
所述容置空间内设置有电路板、红外光元件及射频信号元件；所述电路板分别与所述红外光元件及所述射频信号元件电连接；
所述红外光元件的红外信号及所述射频信号元件的射频信号均穿过所述滤光条进行传输。
所述的具有射频信号处理功能的红外触摸框，其中，所述射频信号的传输信息包括压感信息。
所述的具有射频信号处理功能的红外触摸框，其中，所述射频信号元件包括射频IC和射频天线，所述射频天线设置于所述滤光条的边缘。
所述的具有射频信号处理功能的红外触摸框，其中，所述射频信号元件还包括功率增大模块；
所述射频IC通过所述功率增大模块与所述射频天线相连接。
所述的具有射频信号处理功能的红外触摸框，其中，所述射频信号元件独立设置于所述电路板之外，所述射频信号元件通过外接线材与所述电路板上的元器件进行电连接。
所述的具有射频信号处理功能的红外触摸框，其中，所述射频信号元件集成设置于所述电路板上，所述射频信号元件通过所述电路板上的导线与所述电路板上的元器件进行电连接。
所述的具有射频信号处理功能的红外触摸框，其中，所述电路板与所述显示设备主体的显示屏相平行。
所述的具有射频信号处理功能的红外触摸框，其中，所述电路板与所述显示设备主体的显示屏相垂直。
另一方面，本申请实施例还提供了一种电子设备，用户使用书写笔在所述电子设备的显示屏上进行操作，其中，所述电子设备包括显示设备主体及如上述第一方面所述的具有射频信号处理功能的红外触摸框；
所述红外光元件检测所述书写笔遮挡红外信号的红外检测信息，得到红外检测信息并传输至所述电路板；所述书写笔与所述射频信号元件通过射频信号进行通信。
所述的电子设备，其中，所电路板根据所述红外检测信息及所述射频信号实时获取所述书写笔当前的触控信息，所述触控信息包括所述书写笔的触控位置及触控压力。
本申请实施例提供了一种电子设备及其具有射频信号处理功能的红外触摸框，红外触摸框装配于显示设备主体的边缘；至少由红外触摸框形成容置空间；容置空间内设置有电路板、红外光元件及射频信号元件；电路板分别与红外光元件及射频信号元件电连接；红外触摸框靠近显示设备主体一侧设有滤光条；红外光元件的红外信号及射频信号元件的射频信号均穿过滤光条进行传输。上述红外触摸框，将射频信号元件集成于所述红外触摸框内进行设置，且红外线及射频信号均穿透所述滤光条进行传输，可节省设备的外部空间、避免接收器丢失，方便用户进行使用；同时射频信号直接穿透滤光条，可提高射频信号的传输效率。
附图说明
为了更清楚地说明本申请实施例技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的具有射频信号处理功能的红外触摸框的截面结构图；
图2为本申请实施例提供的具有射频信号处理功能的红外触摸框的另一截面结构图；
图3为本申请实施例提供的具有射频信号处理功能的红外触摸框的又一截面结构图；
图4为本申请实施例提供的具有射频信号处理功能的红外触摸框的局部结构图；
图5为本申请实施例提供的具有射频信号处理功能的红外触摸框的另一局部结构图；
图6为本申请实施例提供的具有射频信号处理功能的红外触摸框的又一局部结构图；
图7为本申请实施例提供的具有射频信号处理功能的红外触摸框的再一局部结构图；
图8为本申请实施例提供的射频信号元件的结构图；
图9为本申请实施例提供的射频信号元件的另一结构图；
图10为本申请实施例提供的电子设备的使用效果图。
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，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
应当理解，当在本说明书和所附权利要求书中使用时，术语“包括”和“包含”指示所描述特征、整体、步骤、操作、元素和/或组件的存在，但并不排除一个或多个其它特征、整体、步骤、操作、元素、组件和/或其集合的存在或添加。
还应当理解，在本申请说明书中所使用的术语仅仅是出于描述特定实施例的目的而并不意在限制本申请。如在本申请说明书和所附权利要求书中所使用的那样，除非上下文清楚地指明其它情况，否则单数形式的“一”、“一个”及“该”意在包括复数形式。
还应当进一步理解，在本申请说明书和所附权利要求书中使用的术语“和/ 或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合，并且包括这些组合。
在本实施例中，请参阅图1至图10，如图所示，本申请实施例提供了一种具有射频信号处理功能的红外触摸框1，所述红外触摸框1装配于显示设备主体2的边缘，所述显示设备主体2为包含显示屏的设备，其中，所述红外触摸框1靠近所述显示设备主体2一侧设有滤光条12，至少由红外触摸框1形成容置空间；所述容置空间内设置有电路板13、红外光元件131及射频信号元件14；所述电路板14分别与所述红外光元件131及所述射频信号元件14电连接；所述红外光元件131的红外信号及所述射频信号元件14的射频信号均穿过所述滤光条12进行传输。
常见的红外触摸框1为四边红外结构，即四个红外边框均设有红外光元件。但本方案也同样可以应用在单边红外触摸框或双边红外触摸框上，本申请不做具体限定。
红外触摸框1靠近显示设备主体2边缘的上方设有滤光条12。具体的，滤光条12可以独立设置在红外触摸框1上，如图3所示；也可以设置在红外触摸框1与显示设备主体2之间，如图1或图2所示。滤光条的具体位置不做限定。
至少由红外触摸框1形成的容置空间，可以是由红外触摸框单独形成容置空间，如图3所示；也可以是由红外触摸框与显示设备主体合围成，如图2所示。具体形成方式本方案不做限定。
在一种具体结构中，如图1所示，所述红外触摸框1包括边框主体11及设置于所述边框主体11与所述显示设备主体2的显示屏之间的滤光条12。所述红外光元件131可以正对所述滤光条12进行设置或不正对所述滤光条12进行设置；其中，红外光元件131正对于滤光条12进行设置，则红外光元件131中红外发射器发射的红外线直接透过滤光条12传输；红外光元件131也可不正对滤光条12进行设置，如设置反光镜对红外光元件131发射的红外线进行反射，经反射后的红外线透过滤光条12传输。
本申请的红外触摸框1在内部集成设置有一个射频信号元件14，射频信号元件14可以是用于对2.4G射频信号进行发射及接收的元器件，相应的，如图1级图10所示，书写笔3上可设置一个2.4G射频信号的发射及接收的射频模块31。射频信号元件14与电路板13进行电连接，如射频信号元件14通过串口与射频信号元件14中的处理单元（如MCU芯片）进行电连接，书写笔的笔尖与压力传感器相接触，当书写笔的笔尖受到形变压力时，笔尖将压力传导至压力传感器，压力传感器的电阻值会发生相应变化；书写笔内的主控芯片通过ADC采集压力传感器的电压，例如，所述电压值随笔尖压力的增加而增加，然后通过转换得出压力值，主控芯片通过射频模块将压力值转换为射频信号并采用无线传输方式发送至射频信号元件14，则射频信号传输信息包括书写笔的压感信息。同样的，射频信号元件14可将射频信号采用无线传输方式发送至书写笔。
在具体实施例中，射频信号元件14包括射频IC141和射频天线142，所述射频天线142设置于所述滤光条12的边缘。为提高射频信号的传输效率，可将射频天线142靠近于所述滤光条12的边缘进行设置，如设置射频天线142与所述滤光条12的间距为0~2cm。其中，射频IC和射频天线共面或非共面设置。射频信号元件14的结构如图8所示。
还可以将射频信号元件14的射频天线142设置于容置空间内的任意位置，其中，射频信号元件14还包括功率增大模块143，所述射频IC141通过所述功率增大模块143与所述射频天线142相连接。例如，射频IC141用于将待输出的射频信号发送至功率增大模块143，功率增大模块143用于对射频信号进行功率增强得到射频放大信号，射频放大信号可通过射频天线142发送至书写笔。如本申请实施例中采用型号为AH102的射频驱动放大器作为射频射频模块进行使用。射频信号元件14的结构如图9所示。
其中，红外光元件131由红外发射器及红外接收器组成。红外线信号由红外光元件131的红外发射器发射，红外线覆盖于显示屏的上层，在无遮挡的情况下，与红外发射器相对的一侧壁设置的红外接收器即可接收到红外发射器发射的红外线；当用户使用书写笔在显示设备主体2的显示屏上进行操作时，则书写笔对显示屏上层的红外线形成遮挡，红外光元件131的红外接收器对书写笔3遮挡的红外线信号进行检测，得到红外检测信息并传输至所述电路板13。
在更具体的实施例中，所述射频信号元件14独立设置于所述电路板13之外，所述射频信号元件14通过外接线材与所述电路板13上的元器件进行电连接。
在具体应用中，射频信号元件14可独立于电路板13之外进行设置，则此时射频信号元件14通过外接线材与电路板13上的元器件进行电连接。具体结构如图4所示。
在更具体的实施例中，所述射频信号元件14集成设置于所述电路板13上，所述射频信号元件14通过所述电路板13上的导线与所述电路板13上的元器件进行电连接。
在另一应用过程中，射频信号元件14可集成于电路板上进行设置，电路板上通过导线对元器件进行电连接，则此时射频信号元件14通过导线与电路板13上的元器件进行电连接，具体结构如图5所示。将射频信号元件14集成设置于电路板上，可进一步提高红外触摸框1内部元器件的集成度，并提高结构上的兼容性，使射频信号元件14占用空间更小，缩减红外触摸框1的截面尺寸，红外触摸框1内的空间利用率更高。
在更具体的实施例中，所述电路板13与所述显示设备主体2的显示屏相平行，所述红外光元件131设置于所述电路板13的顶面。
在具体应用中，电路板13包含两个面，可设置电路板13与显示屏相平行，红外光元件131进行红外线发射及接收红外线的方向均与显示屏相平行，则红外光元件131设置于电路板13的顶面（电路板13的TOP层）。具体结构如图1所示。当显示屏平放时，则电路板13也为平放状态；当显示屏侧立放置时，则电路板13也对应为侧立状态。
在更具体的实施例中，所述电路板13与所述显示设备主体2的显示屏相垂直，所述红外光元件131设置于所述电路板13上朝向所述滤光条12的一侧面。
在具体应用中，还可设置电路板13与显示屏相垂直，也即设置电路板13为“立式”，电路板13包含两个面；红外光元件131进行红外线发射及接收红外线的方向均与显示屏相平行，则红外光元件131设置于电路板13上朝向所述滤光条12的一侧面。具体结构如图2所示。当显示屏平放时，则电路板13为侧立状态；当显示屏侧立放置时，则电路板13为平放状态。
可根据显示屏的尺寸以及实际应用场景对电路板13的设置方向进行调整，如针对电子白板所包含的大尺寸显示屏，可设置电路板13为“立式”；针对平板电脑所包含的小尺寸显示屏，可设置电路板13为“卧式”，以减小平板电脑的厚度。
具体的，所述射频天线142与所述红外光元件131设置于所述电路板13的同一面。或者是，所述射频天线142与所述红外光元件131设置于所述电路板13相对的两面。
具体的，红外光元件131包含多个子元件，子元件为红外发射器及红外接收器；若红外光元件131与射频天线142设置于电路板13的同一面时，则射频天线142可设置于子元件之间，电路板13与显示设备主体2的显示屏相平行时，射频天线142的具体设置结构如图6所示。
若红外光元件131与射频天线142设置于电路板13的同一面时，则射频天线142可设置于子元件的下方，电路板13与显示设备主体2的显示屏相垂直时，射频天线142的具体设置结构如图7所示。
在将射频天线142设置于集成设置于所述电路板13上时，可将射频天线142设置于与红外光元件131相同的一面，或者是将射频天线142设置于与红外光元件131不同的一面。在实际应用过程中，将射频天线142集成设置于所述电路板13的设置方式可灵活调整，如为了进一步节省射频信号元件14的占用空间，同时提高红外触摸框1内部元器件的集成度，可将射频天线142与红外光元件131设置于电路板13的同一面；红外线信号及射频信号穿过滤光条后即可直接被电路板13上相应的接收器进行接收，可进一步提高射频信号的传输效率。
如图10所示，本申请实施例还提供了一种电子设备，其中，所述电子设备包括显示设备主体2及如上述实施例所述的具有射频信号处理功能的红外触摸框1，用户使用书写笔3在所述电子设备的显示屏上进行操作；所述红外光元件131检测所述书写笔3遮挡红外信号的红外检测信息，得到红外检测信息并传输至所述电路板，书写笔3与射频信号元件14通过射频信号进行通信。电路板13根据所述红外检测信息及所述射频信号实时获取所述书写笔3当前的触控信息，所述触控信息包括所述书写笔的触控位置及触控压力。具体的，所述红外光元件131的红外接收器对所述书写笔3遮挡的红外线信号进行检测，得到红外检测信息并传输至所述电路板13，所述红外线信号由所述红外光元件131的红外发射器发射；所述书写笔3检测笔尖的压力值信息，并转换为射频信号后经所述射频信号元件14传输至所述电路板13；所述电路板13根据所述红外检测信息及所述射频信号实时获取所述书写笔3当前的触控信息；所述触控信息包括所述书写笔的触控位置及触控压力。
其中，书写笔3上还可设置按键，书写笔的主控芯片获取按键长按/短按状态的按键信息，并通过书写笔3上的射频模块31将所有数据组包通过射频信号发送到射频信号元件14，则此时的数据组包中包括压力值信息及按键信息。
作为一种可行的实施方式，书写笔的主控芯片对按键状态进行扫描并获取按键信息。书写笔的按键主要包括2个按键：KEY1，KEY2；按键状态主要包括6个状态：KEY1短按，KEY1长按1.5 ~ 8S，KEY1长按8S以上。KEY2短按，KEY2长按1.5 ~ 8S，KEY2长按8S以上。对按键进行扫描是为了及时触发按键功能，采用的是中断扫描方式，当按键所对应的IO口从高电平变为低电平的时候，触发GPIO口中断。定义按键3个状态的触发时间，当按键所对应的IO口从低电平变为高电平的时候视为一次按键触发。当低电平的持续时间小于或者超过定义的短按时间（小于1.5S），1.5S，和8S时间时，则视为按键短按，按键长按1.5~8S和按键长按8S共3个状态。获取到按键状态后，根据相应的功能要求发送所对应的射频信号至射频信号元件14，以实现按键功能的触发。此按键功能的实现过程中包含按键消抖处理，以提高按键的准确性。按键功能可以对应翻页、调节声音、画面亮度等等功能。
作为一种可行的实施方式，书写笔与电子产品的配对能够实现一支笔适用于多台机器的场景，或者在一台机器上面配对或者更换另一只书写笔进行使用的场景。一旦配对成功就无须再次配对。配对实现原理是书写笔的射频模块31及射频信号元件14切换到配对模式下，都使用同一个通信地址，也就是广播地址。射频模块31作为发射端、射频信号元件14作为接收端；或者是射频模块31作为接收端、射频信号元件14作为发射端，然后发射端发送自己的独有通信地址后，如果有接收端收到发射端独有的通信地址，那么接收端就会把通信地址切换成接收到的地址，在此之前发送数据告诉发射端，然后双方切换到发射端独有的通信地址，这样双方就能实现一对一通信，从而实现配对的功能。
书写笔中设置的通讯串口起到射频模块31与电路板13中射频信号元件14相互通讯的作用，射频信号元件14通过通讯串口再通过射频模块31与书写笔交互，并获取压感值信息，同时电路板13的处理单元会在有触摸物体触摸时将触摸物体的坐标信息及压感信息，上传到PC和安卓系统。
用户可使用书写笔3在电子设备的显示屏上进行操作，则书写笔3上的射频模块31将包含压力值信息的射频信号发射至射频信号元件14，射频信号元件14将接收到的射频信号转发至电路板13；同时通过红外光元件131的红外接收器获取红外检测信息后传输至电路板13；电路板13上的处理单元对红外检测信息及射频信号进行解析，得到书写笔当前的触控信息，触控信息包括书写笔的触控位置及触控压力，触控位置也即对应书写笔笔尖在显示屏上的具体坐标位置，触控压力也即是书写笔笔尖的压力值大小。主板接收到由电路板13输入的触控信息后，即可根据触控信息调整显示屏幕内的显示内容，或者是输出控制信息至与触控板相连接的显示终端，以通过控制信息调整显示终端内的显示内容。
在本申请实施例所提供的电子设备及其具有射频信号处理功能的红外触摸框，至少由红外触摸框形成容置空间；容置空间内设置有电路板、红外光元件及射频信号元件；电路板分别与红外光元件及射频信号元件电连接；红外触摸框靠近显示设备主体一侧设有滤光条；红外光元件的红外信号及射频信号元件的射频信号均穿过滤光条进行传输。上述红外触摸框，将射频信号元件集成于所述红外触摸框内进行设置，且红外线及射频信号均穿透所述滤光条进行传输，可节省设备的外部空间、避免接收器丢失，方便用户进行使用；同时射频信号直接穿透滤光条，可提高射频信号的传输效率。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种具有射频信号处理功能的红外触摸框，所述红外触摸框设置于显示设备主体的边缘，其特征在于，所述红外触摸框靠近所述显示设备主体一侧设有滤光条；
    至少由所述红外触摸框形成容置空间；
    所述容置空间内设置有电路板、红外光元件及射频信号元件；所述电路板分别与所述红外光元件及所述射频信号元件电连接；
    所述红外光元件的红外信号及所述射频信号元件的射频信号均穿过所述滤光条进行传输。
  2. 根据权利要求1所述的具有射频信号处理功能的红外触摸框，其特征在于，所述射频信号的传输信息包括压感信息。
  3. 根据权利要求1所述的具有射频信号处理功能的红外触摸框，其特征在于，所述射频信号元件包括射频IC和射频天线，所述射频天线设置于所述滤光条的边缘。
  4. 根据权利要求3所述的具有射频信号处理功能的红外触摸框，其特征在于，所述射频信号元件还包括功率增大模块；
    所述射频IC通过所述功率增大模块与所述射频天线相连接。
  5. 根据权利要求1-4任一项所述的具有射频信号处理功能的红外触摸框，其特征在于，所述射频信号元件独立设置于所述电路板之外，所述射频信号元件通过外接线材与所述电路板上的元器件进行电连接。
  6. 根据权利要求1-4任一项所述的具有射频信号处理功能的红外触摸框，其特征在于，所述射频信号元件集成设置于所述电路板上，所述射频信号元件通过所述电路板上的导线与所述电路板上的元器件进行电连接。
  7. 根据权利要求1-4任一项所述的具有射频信号处理功能的红外触摸框，其特征在于，所述电路板与所述显示设备主体的显示屏相平行。
  8. 根据权利要求1-4任一项所述的具有射频信号处理功能的红外触摸框，其特征在于，所述电路板与所述显示设备主体的显示屏相垂直。
  9. 一种电子设备，用户使用书写笔在所述电子设备的显示屏上进行操作，其特征在于，所述电子设备包括显示设备主体及如权利要求1-8任一项所述的具有射频信号处理功能的红外触摸框；
    所述红外光元件检测所述书写笔遮挡红外信号的红外检测信息，得到所述红外检测信息并传输至所述电路板；所述书写笔与所述射频信号元件通过射频信号进行通信。
  10. 根据权利要求9所述的电子设备，其特征在于，所述电路板根据所述红外检测信息及所述射频信号实时获取所述书写笔当前的触控信息，所述触控信息包括所述书写笔的触控位置及触控压力。
PCT/CN2022/110396 2022-07-06 2022-08-05 电子设备及其具有射频信号处理功能的红外触摸框 WO2024007408A1 (zh)

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