WO2022222662A1 - 触控笔、触控笔系统及触控笔的控制方法 - Google Patents

触控笔、触控笔系统及触控笔的控制方法 Download PDF

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Publication number
WO2022222662A1
WO2022222662A1 PCT/CN2022/081958 CN2022081958W WO2022222662A1 WO 2022222662 A1 WO2022222662 A1 WO 2022222662A1 CN 2022081958 W CN2022081958 W CN 2022081958W WO 2022222662 A1 WO2022222662 A1 WO 2022222662A1
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WIPO (PCT)
Prior art keywords
stylus
shielding member
receiving electrode
signal
pen
Prior art date
Application number
PCT/CN2022/081958
Other languages
English (en)
French (fr)
Inventor
叶成亮
Original Assignee
Oppo广东移动通信有限公司
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Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2022222662A1 publication Critical patent/WO2022222662A1/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
    • G06F3/03545—Pens or stylus

Definitions

  • the present application relates to the technical field of electronic information, and in particular, to a stylus, a stylus system, and a control method of the stylus.
  • the stylus came into being.
  • the stylus and the touch screen of the terminal device are matched with each other, and the position coordinates of the stylus on the touch screen are determined, thereby realizing the Effective use on end devices. Therefore, how to improve the signal interaction efficiency between the touch pen and the touch screen is an urgent problem to be solved at present.
  • the embodiments of the present application disclose a stylus, a stylus system, and a control method of the stylus, which can improve the signal reception between the stylus and the touch screen, so as to improve the receiving performance of the active stylus.
  • an embodiment of the present application discloses a stylus pen, the stylus pen is applied to a terminal device having a touch screen, and the stylus pen includes
  • a pen body wherein the pen body is provided with a circuit board
  • a pen refill the refill is at least partially set in the pen body, the refill has a first electrode, and the first electrode is electrically connected to the circuit board for sending a first signal to the terminal device ;as well as
  • a receiving electrode and a shielding member, the receiving electrode and the shielding member are at a first potential when the first electrode sends a first signal to the terminal device, and the receiving electrode and the shielding member are in the terminal device
  • the second signal is sent at a second potential to receive the second signal.
  • an embodiment of the present application discloses a stylus system, the stylus system includes a terminal device and the stylus according to the first aspect, the terminal device includes a touch screen, and the The touch pen is used for writing on the touch screen.
  • an embodiment of the present application discloses a method for controlling a stylus pen, where the stylus pen is the stylus pen described in the first aspect, and the method includes:
  • the shielding member and the receiving electrode prevent the first signal from spreading
  • the second signal sent by the terminal device is received through the shielding member and the receiving electrode.
  • Fig. 1 is the schematic diagram that the folding screen in the related art is on-cell mode
  • FIG. 2 is a schematic diagram of a laminated structure of a folding screen and a non-folding screen in the related art
  • FIG. 3 is a schematic diagram of signal attenuation when a stylus in the related art is connected with a folding screen and a non-folding screen;
  • FIG. 4 is a schematic structural diagram of a touch pen disclosed in an embodiment of the present application.
  • FIG. 5 is a schematic partial structure diagram of a touch pen disclosed in an embodiment of the present application.
  • FIG. 6 is a schematic exploded schematic diagram of a partial structure of a stylus of the stylus disclosed in an embodiment of the present application (with the pen body omitted);
  • Fig. 7 is the sectional view of the internal structure along the I-I direction of Fig. 6;
  • Fig. 8 is an enlarged view at A place in Fig. 7;
  • FIG. 9 is a schematic structural diagram of a refill disclosed in an embodiment of the present application.
  • Figure 10 is a cross-sectional view of the internal structure of the refill in Figure 9;
  • FIG. 11 is a schematic structural diagram of a support frame disclosed in an embodiment of the present application.
  • FIG. 12 is a structural block diagram of the shielding member and the receiving electrode being connected to the circuit board through the switching element disclosed in the embodiment of the present application;
  • FIG. 13 is a cross-sectional view of the internal structure of the stylus according to an embodiment of the present application at a position close to the tip;
  • FIG. 14 is a schematic structural diagram of a contact connection between a shielding member and a receiving electrode according to an embodiment of the present application
  • 15 is a cross-sectional view of an internal structure of the shielding member and the receiving electrode in contact with the embodiment of the present application;
  • FIG. 16 is another structural schematic diagram of the shielding member and the receiving electrode being connected in contact with the embodiment of the present application;
  • FIG. 17 is a schematic structural diagram of the shielding member and the receiving electrode being connected by a conductive member disclosed in an embodiment of the present application;
  • FIG. 18 is a cross-sectional view of the internal structure of the shielding member and the receiving electrode connected by the conductive member disclosed in the embodiment of the present application;
  • FIG. 19 is a schematic structural diagram of the pen refill disclosed in the embodiment of the present application disposed on the support frame;
  • Figure 20 is a schematic exploded view of the structure of Figure 19;
  • FIG. 21 is a schematic structural diagram of a bearing bracket and a cover body disclosed in an embodiment of the present application.
  • 22 is a schematic exploded schematic diagram of a partial structure of the bearing bracket and the cover body disclosed in the embodiment of the present application;
  • FIG. 23 is a schematic structural diagram of a stylus system disclosed in an embodiment of the present application.
  • 24 is a schematic diagram of signal interaction between a stylus pen and a touch screen in the stylus pen system disclosed in an embodiment of the present application;
  • FIG. 25 is a flowchart of a control method of a stylus disclosed in an embodiment of the present application.
  • orientation or positional relationship indicated by the terms “upper”, “lower”, “outer” and the like is based on the orientation or positional relationship shown in the drawings. These terms are primarily used to better describe the present application and the embodiments thereof, and are not intended to limit the fact that the indicated device, element or component must have a particular orientation, or be constructed and operated in a particular orientation.
  • the terms “installed”, “set up”, “provided with”, “connected” should be construed broadly. For example, it may be a fixed connection, a detachable connection, or a unitary structure; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediary, or between two devices, elements, or components. internal communication.
  • installed may be a fixed connection, a detachable connection, or a unitary structure
  • it may be a mechanical connection, or an electrical connection
  • it may be directly connected, or indirectly connected through an intermediary, or between two devices, elements, or components. internal communication.
  • the specific meanings of the above terms in this application can be understood according to specific situations.
  • first means two or more.
  • the advantage of the folding screen mobile phone module is that the unfolded size is large, similar to the display size of a tablet, and when folded, it is the size of an ordinary mobile phone. Due to the requirements of folding performance, the module materials of folding mobile phones are all flexible and foldable materials, and in order to reduce the bending stress, the module materials of folding mobile phones have been thinned, as shown in Figure 1, which shows related
  • the laminated structure of the folding screen of the folding mobile phone in the technology the laminated structure of the folding mobile phone includes a cover film layer (cover film layer), OCA1 (Optically Clear Adhesive, optical glue), POL (polarizer) arranged in sequence from top to bottom ), AMOLED (self-luminous screen), PI film (Polyimide, polyimide), PSA (pressure sensitive adhesive, pressure sensitive adhesive), BRACKET1 (first frame) and BRACKET2 (second frame).
  • the coating layer is changed from the original glass cover plate of about 0.5mm to CPI film (transparent polyimide film), OCA also uses shear deformation-resistant glue, and at the same time, the TP layer (Touch panel, touch layer) Integrated into on-cell mode.
  • CPI film transparent polyimide film
  • OCA also uses shear deformation-resistant glue, and at the same time, the TP layer (Touch panel, touch layer) Integrated into on-cell mode.
  • the on-cell mode refers to the mode in which the touch layer is embedded between the color filter substrate and the polarizer of the screen, that is, the mode in which the display panel is equipped with a touch sensor.
  • the on-cell touch mode of the folding screen determines that the TP layer (touch layer) is different from that of the vast majority of notebook computers or tablet computer products currently on the market.
  • the TP layer of the foldable mobile phone is closer to the display panel layer, is thinner, and has greater touch interference and load.
  • FIG. 2 shows the stacking Schematic diagram of the layer structure, the TP layer of the folding screen is directly covered on the display panel layer, in this case, the interference and load on the touch are greater.
  • (b) in Figure 2 shows a schematic diagram of the laminated structure of a non-folding screen. Most of the touch screens on the market are mostly external TP layers.
  • the TP layer is in the The display panel layer has been assembled and then installed. In this case, the TP layer is far away from the display panel layer, and the load and interference are relatively small. However, in this way, the overall thickness of the screen is large, which is not conducive to bending and folding.
  • the folding screen can be folded, and the unfolded size of the folding screen is relatively large (usually 8 inches), or even larger (for example, it may be 10 inches), the load of the TP layer is larger under this size.
  • the signal attenuation of the TP layer of the folding screen is relatively large, which brings a greater impact to the application of the stylus. challenge.
  • the voltage value detected by the oscilloscope is about 64.78% lower than that of the folding screen.
  • the folding screen using the on-cell mode has a large signal attenuation of the folding screen, which reduces the amount of signals that the stylus can receive, which greatly affects the interaction efficiency between the stylus and the folding screen, and hinders the stylus. Effective application on folding screen.
  • a first aspect of the present application discloses a stylus, the stylus is applied to a terminal device, and the stylus includes:
  • a pen body wherein the pen body is provided with a circuit board
  • a pen refill the refill is at least partially set in the pen body, the refill has a first electrode, and the first electrode is electrically connected to the circuit board for sending a first signal to the terminal device ;as well as
  • a receiving electrode and a shielding member, the receiving electrode and the shielding member are at a first potential when the first electrode sends a first signal to the terminal device, and the receiving electrode and the shielding member are in the terminal device
  • the second signal is sent at a second potential to receive the second signal.
  • the receiving electrode is electrically connected to the shielding member.
  • the stylus further includes a switch element, and the circuit board is provided with a power supply terminal and a ground terminal.
  • the first electrode sends the first signal to the terminal device
  • the The receiving electrode and/or the shielding element are connected to the ground terminal through the switching element;
  • the terminal device sends a second signal, the receiving electrode and/or the shielding element are connected through the switching element at the power supply terminal.
  • the shielding member is annular, and the shielding member is sleeved on the outer periphery of the refill.
  • the receiving electrode is annular, and the receiving electrode is sleeved on the outer periphery of the shielding member.
  • the length of the shielding member along the axial direction of the pen body is greater than the length of the receiving electrode along the axial direction of the pen body.
  • a conductive ring is protruded from the outer periphery of the receiving electrode and/or the shielding member, and the conductive ring is at least partially exposed outside the pen body.
  • the receiving electrode is connected to the shielding member in a contact manner.
  • the receiving electrode is sleeved on the outer circumference of the shielding member, and at least part of the inner wall surface of the receiving electrode is in contact with at least part of the outer wall surface of the shielding member, or the receiving electrode
  • the electrode and/or the shielding member is provided with a stepped portion, and the receiving electrode and the shielding member are in contact and connected through the stepped portion.
  • the receiving electrode is connected to the shielding member through a conductive member.
  • the conductive member includes at least one of a conductive bearing, a conductive spring or a flexible circuit board.
  • the conductive member includes a first electrical connection portion and a second electrical connection portion, the first electrical connection portion is connected to one of the shielding member and the receiving electrode, and the The second electrical connection portion is connected to the other of the shield member and the receiving electrode, and the first electrical connection portion and/or the second electrical connection portion is also connected to the circuit board.
  • the first electrical connection portion has a first annular portion, and the first annular portion is sleeved and connected to one of the shielding member and the receiving electrode.
  • the second electrical connection portion has a second annular portion, and the second annular portion is sleeved and connected to the other of the shielding member and the receiving electrode.
  • the stylus further includes a support frame, which is arranged in the pen body and is used for fixing the pen core, the shielding member and the receiving electrode on the In the pen body, the circuit board is arranged on the support frame.
  • the receiving electrodes are arranged at intervals from the shielding member
  • the support frame includes a first support part, a second support part and a third support part which are connected in sequence, the first support part has a first positioning groove, the pen core is at least partially located in the first positioning groove, the The second support part has a second positioning groove communicating with the first positioning groove, the shielding element is at least partially located in the second positioning groove, and the third support part is sleeved on the outer circumference of the second electrode and is located between the receiving electrode and the shield.
  • the second support portion is provided with a first void hole extending along its own radial direction and a first winding hole provided around the outer circumference of the second support portion, the A winding hole communicates with the first void hole;
  • the first electrical connection portion includes an abutting portion and a first annular portion, the abutting portion abuts between the outer periphery of the shielding member and the second bracket portion, and the first annular portion is self-contained.
  • the first void hole extends into the first winding hole so as to be wound around the outer circumference of the second bracket portion.
  • the second bracket portion is provided with a second void hole extending along its own axial direction;
  • the second electrical connection portion includes a second annular portion and an extension portion connected with the second annular portion, the second annular portion is sleeved and connected to the outer periphery of the receiving electrode, and the extension portion extending along the second void hole in the direction of the circuit board to connect with the circuit board.
  • the present application further discloses a stylus system, including a terminal device and the stylus pen according to the first aspect above, wherein the terminal device includes a touch screen, and the stylus pen is used for write on the touch screen.
  • the touch screen is one of a folding screen, a scroll screen, a pebble screen, and a four-curved screen.
  • the present application further discloses a method for controlling a stylus, which is applied to the stylus of the first aspect, and the method includes:
  • the shielding member and the receiving electrode prevent the first signal from spreading
  • the second signal sent by the terminal device is received through the shielding member and the receiving electrode.
  • the stylus pen can be applied in a terminal device, and the stylus pen has a first electrode, a shielding member and a receiving electrode. It is used to transmit the first signal to the terminal device, and the shielding member and the receiving electrode can be used to be at the first potential when the first electrode transmits the first signal to the terminal device, thereby playing the role of signal shielding and isolation, reducing signal dispersion and improving the first potential.
  • the signal interaction capability of the electrodes and the touch screen, and the shielding member and the receiving electrode can be used to be at a second potential to receive the second signal when the terminal device sends the second signal to the stylus.
  • the shielding member and the receiving electrode can play a role in The signal receiving function can increase the signal receiving area of the stylus to the terminal device and improve the receiving ability of the stylus.
  • the shielding member and the receiving electrode can also play a role in preventing signal divergence, the isolation strength of the first signal sent by the first electrode of the stylus can be improved, so that the first signal can be concentrated as much as possible to the stylus.
  • the direction of the touch screen of the matching terminal device is sent.
  • an embodiment of the present application discloses a stylus pen, which can be applied to a terminal device with a touch screen, so that operations (eg, writing) on the touch screen can be implemented to realize interaction.
  • the terminal device may include, but is not limited to, a tablet computer, a mobile phone, or a notebook computer.
  • the touch screen can be a touch screen of a common tablet computer (such as a hard screen), or a flexible screen of a mobile phone or tablet computer (such as a folding screen, a sliding screen, a pebble screen, a scroll screen, a four-curved screen, etc.) .
  • the aforementioned folding screen is very close to the display panel layer because the TP layer is very close to the display panel layer, the load, interference and signal attenuation are relatively large.
  • the signal sent by the folding screen is greatly attenuated, which leads to touch.
  • the interaction efficiency between the stylus and the folding screen is low.
  • the touch screen of the stylus application is used as an example to illustrate the folding screen. By improving the receiving ability of the stylus, the receiving ability of the stylus can be The signal transmission capability of the folding screen is matched.
  • FIG. 4 is a schematic structural diagram of a stylus disclosed in an embodiment of the present application
  • FIG. 5 is a partial structural schematic diagram of a stylus pen disclosed in an embodiment of the present application
  • FIG. 6 is a schematic diagram of the structure of the stylus.
  • the touch pen 10 of this embodiment includes a pen body 11 , a pen core 12 , a shielding member 13 a and a receiving electrode 13 b.
  • the pen body 11 is provided with a circuit board 11a, and the pen core 12 is at least partially disposed in the pen body 11.
  • the pen core 12 may have a first electrode 12a, and the first electrode 12a is electrically connected to the circuit board 11a for connecting to the pen body 11.
  • the terminal device used with it transmits the first signal.
  • the shield 13a and the receiving electrode 13b are used to be at the first potential when the first electrode 12a transmits the first signal to the terminal device.
  • the shielding member 13a and the receiving electrode 13b are used to be at a second potential to receive the second signal when the terminal device transmits the second signal.
  • the second potential and the first potential may be different potentials, that is, the first potential may be a DC potential, which remains unchanged all the time, for example, it may be 20V, 40V, etc., while the second potential may be in a changing state, such as its It can be 20V or change from 20V to 21V, 22V, etc.
  • the shielding member 13a hinders the divergence of the first signal, which specifically means that when the stylus 10 cooperates with the touch screen of the terminal device, the refill 12 of the stylus 10 is mainly used on the touch screen of the terminal device through the refill 12 of the stylus 10 Therefore, in order to enable the first electrode 12a to transmit the first signal to the touch screen of the terminal device, the first signal can be transmitted to the touch screen of the terminal device in a concentrated manner, rather than along all directions of the pen body 11 Disorderly divergence, the arrangement of the shielding member 13a and the receiving electrode 13b can prevent the disorderly divergence of the first signal, so that the first signal can be emitted in the direction toward the touch screen of the terminal device as much as possible.
  • first signal and the second signal may be different signals, or the first signal and the second signal may be the same signal.
  • the first signal and the second signal are different signals.
  • the second signal is often transmitted to the stylus 10 through the terminal device, so as to be able to pair with the stylus 10, that is, the second signal may be pairing signal
  • the second electrode 13 of the touch pen 10 can receive the second signal to complete the pairing with the touch screen of the terminal device.
  • the first electrode 12a of the stylus 10 can transmit a first signal to the terminal device, that is, the first electrode 12a is a transmitting electrode
  • the first signal can include a driving signal.
  • the first signal can be more concentratedly received by the terminal device.
  • the shielding member 13a can be used to shield the divergence of the first signal when the first electrode 12a transmits the first signal, so that the terminal device can receive the first signal according to the The first signal calculates the coordinates of the stylus 10, and analyzes the relevant information of the coordinates at the same time.
  • the first signal may also include a digital signal
  • the first electrode 12a may send out the digital signal
  • the digital signal may include pressure information or function key information on the stylus 10, so that the terminal device can receive The signal and parse out the pressure information or function key information and other related information.
  • the protocol between the stylus 10 and the terminal device is a bidirectional protocol, that is, in the uplink (uplink) stage, the terminal device transmits a second signal to pair with the stylus 10, and the second electrode 13 receives the pairing signal for matching, and in the downlink (downlink) stage, the first electrode 12a of the stylus 10 transmits the first signal.
  • the shielding member 13a isolates or shields the divergence of the first signal, so that the terminal device can After receiving the first signal, that is, using the solution of this embodiment, the shielding member 13a can be at different potentials at different stages to perform different functions, that is, time-division multiplexing of the shielding member 13a is realized.
  • first signal and the second signal may be the same signal, for example, both the first signal and the second signal may be paired signals, or both the first signal and the second signal may include digital signals.
  • This embodiment is described by taking an example that the first signal and the second signal are different signals, the second signal is a pairing signal, and the first signal is a driving signal.
  • a stylus is usually provided with a transmitting electrode, a receiving electrode and a shielding electrode.
  • the transmitting electrode is used for sending signals to the terminal device
  • the shielding electrode is used for shielding the signal diffusion of the transmitting electrode, which is in phase with the signal of the receiving electrode.
  • isolation, and the receiving electrode is responsible for receiving the transmitted signal of the terminal device to achieve pairing with the terminal device.
  • each electrode performs different functions respectively, and since the volume of the stylus is usually small, the receiving electrode generally cannot be made too large, so as to avoid excessive occupation of the internal space of the stylus, and also avoid affecting Shield electrode setup.
  • the shielding member 13a and the receiving electrode 13b are provided in this embodiment, and the receiving electrode 13b and the shielding member 13a are electrically connected, so that the receiving electrode 13b and the shielding member 13a can have a shielding function at the same time to hinder the transmission of the first signal. Diverging, and the receiving electrode 13b and the shielding member 13a can also have a receiving function to receive the second signal at the same time.
  • the structure of the stylus 10 can not be changed significantly, the consumables used by the stylus 10 will not be greatly increased, and the processing and assembly process will not be greatly complicated. In this case, the signal receiving area and the signal shielding area of the stylus 10 are effectively improved, and the interaction capability of the stylus 10 and the terminal device to which the stylus 10 is applied is effectively improved.
  • the shielding member 13a and the receiving electrode 13b can be at the second potential , can be used as receiving electrodes to have a receiving function, so that the signal receiving area of the touch pen 10 can be increased, and the signal receiving capability of the touch pen 10 can be improved.
  • the shielding member 13a and the receiving electrode 13b are at the first potential and can simultaneously act as isolation electrodes to have Shielding function, the shielding member 13a and the receiving electrode 13b can simultaneously shield or block the divergence of the first signal, so that the terminal device can receive the first signal, improve the signal strength of the first signal received by the terminal device, and then calculate The coordinate information of the stylus 10 on the terminal device, or other information carried by the first signal is output.
  • the shielding member 13a and the receiving electrode 13b are connected to the conductive circuit, so that the second potential of the two can be changed according to the actual potential. It is 20V, or changes from 20 to 21V, 22V, etc.
  • the shielding member 13a and the receiving electrode 13b can be grounded, so that the first potential of the two can be a DC potential, such as 20V.
  • the shielding member 13a and the receiving electrode 13b can be used to receive the second signal at the same time, or can be used to block the divergence of the first signal at the same time, the shielding member 13a and the receiving electrode 13b can be used to receive the second signal at the same time.
  • the signal receiving area of the stylus 10 can be increased, and the signal receiving strength can be improved.
  • the shielding member 13a and the receiving electrode 13b are simultaneously used to prevent the first signal from spreading, the signal shielding area of the stylus 10 can be increased, and the isolation of the first signal sent by the first electrode 12a of the stylus 10 can be improved.
  • the strength is such that the first signal can be sent as concentrated as possible in the direction of the touch screen matched with the stylus 10 .
  • the manner in which the shielding member 13a and the receiving electrode 13b are at the first potential or the second potential may include electrical connection of the two, or the two may be controlled separately by the control module.
  • the shielding member 13a and the receiving electrode 13b can be electrically connected, so that the shielding member 13a and the receiving electrode 13b can be at the same potential, for example, the first potential or the second potential.
  • the shielding member 13a and the receiving electrode 13b are electrically connected to be at the same potential, and the connection is simple and reliable.
  • the shielding member 13a and the receiving electrode 13b can be controlled separately by a control module to control the potentials of the shielding member 13a and the receiving electrode 13b.
  • the shielding member 13a and the receiving electrode 13b may be connected to the circuit board 11a, respectively, and the shielding member 13a and the receiving electrode 13b may be controlled to be at the first potential by a control module (eg, a chip) on the circuit board 11a, or the shielding member 13a and the receiving electrode 13b may be controlled to be at the first potential.
  • the receiving electrode 13b is at the second potential.
  • the shielding member 13a can be a ring-shaped electrode, and the shielding member 13a can be sleeved on the outer periphery of the first electrode 12a (ie, the refill 12).
  • the receiving electrode 13b can also be a ring-shaped electrode, and the receiving electrode 13b can be sleeved on the outer periphery of the shielding member 13a. That is, the first electrode 12a, the shielding member 13a and the receiving electrode 13b are sequentially sleeved along the axial direction of the pen core 12, so that the effect of the first electrode 12a, the shielding member 13a and the receiving electrode 13b on the pen body 11 can be reduced.
  • the occupation in the length direction makes the overall structure of the stylus 10 more compact.
  • the shielding member 13a and the receiving electrode 13b can block the divergence of the first signal transmitted by the first electrode 12a, and the shielding member 13a and the receiving electrode 13b can receive the second signal sent by the terminal device, the shielding member 13a is sleeved On the outer circumference of the first electrode 12a, the receiving electrode 13b is sleeved on the outer circumference of the shielding member 13a, which can facilitate the diffusion of the first signal and the reception of the second signal.
  • the length of the shielding member 13a along the axial direction of the pen body 11 is greater than the length of the receiving electrode 13b along the axial direction of the pen body 11, so that the shielding member 13a can have sufficient shielding area and receiving area , so as to shield the first signal and receive the second signal. It can be understood that, in other embodiments, the length of the receiving electrode 13b along the axial direction of the pen body 11 may also be the same as or greater than the length of the shielding member 13a, so as to further increase the length of the stylus.
  • the shielding effect of 10 on the first signal and the receiving effect on the second signal may also be the same as or greater than the length of the stylus.
  • the pen body 11 may be made of insulating material.
  • the pen body 11 can at least accommodate the pen refill 12 , the shielding member 13 a and the receiving electrode 13 b to protect the pen refill 12 , the second electrode 13 and the third electrode 14 .
  • the pen body 11 may include a pen head 11b and a pen holder 11c which are connected to each other, the circuit board 11a may be arranged in the pen holder 11c, and the above-mentioned pen core 12, shielding member 13a and receiving electrode 13b may be at least partially arranged in the pen holder 11c Therefore, the overall structure of the touch pen 10 is compact, and the electrical connection between the circuit board 11a and the first electrode 12a, the shielding member 13a, and the receiving electrode 13b can be facilitated.
  • the pen tip 11b can be made of a non-metal flexible or soft material, such as silicone or thermoplastic polyurethane elastomer rubber, so that the pen tip 11b is soft and can avoid scratching the touch screen of the terminal device when writing. , especially for the softer foldable screen.
  • the material of the pen head 11b is made of non-metallic material, the pen head 11b has no shielding effect on electrical signals (such as the above-mentioned first signal and second signal) or the shielding effect can be ignored, so that the stylus 10 can be easily stored in the Writing on the touch screen of the terminal device.
  • the shape of the pen head 11b may adopt a tapered shape gradually reducing from the connection with the pen barrel 11c to the end away from the pen barrel 11c.
  • the pen refill 12 may include a pen tip 12b, a first post 12c, a second post 12d, and a pen clip 12e.
  • the pen tip 12b includes a main body 120 and a pen tip 121, the main body 120 is rod-shaped, the main body 120 is arranged in the pen holder 11c, and the main body 120 has the first electrode 12a.
  • the nib portion 121 is disposed at one end of the main body portion 120 facing the nib 11b, and the nib portion 121 can be located in the nib 11b.
  • the first strut 12c is in the shape of a long column, that is, its dimension in the axial direction is larger than that in the radial direction.
  • One end can be sleeved on the outside of the pen tip 12b, and is clamped with the pen tip 12b, so as to fix the relative position of the pen tip 12b and the first support 12c.
  • one end of the first pillar 12c for being sleeved on the outside of the pen tip 12b is hollow and provided, that is, one end of the first pillar 12c is provided with an accommodating cavity 122 having an opening, and the main body 120 of the pen tip 12b passes through the opening.
  • the nib portion 121 of the pen tip 12b is located outside the accommodating cavity 122 so as to extend into the accommodating cavity 122 and be fixed in the accommodating cavity 122 .
  • the pen clip 12e can be clamped on the outer periphery of the main body part 120 and located in the accommodating cavity 122 .
  • the pen clip 12e can be an elastic pen clip, and the elastic pen clip is elastically clamped on the outer periphery of the metal main body portion 120, which can not only fix the metal main body portion 120, but also prevent the pen tip 12b from sliding along the stylus during the writing process. 10
  • the main body 120 is fixed in the accommodating cavity 122 by the elastic clamping force of the pen clip 12e, instead of using bonding or other methods such as screw fixation to fix the metal main body 120, which can facilitate the assembly and replacement of the pen tip 12b.
  • the second strut 12d is also in the shape of a long column, that is, its dimension in the axial direction is larger than that in the radial direction, and one end of the second strut 12d can be screwed together It is connected to the other end of the first pillar 12c away from the pen tip 12b, so as to facilitate the connection between the second pillar 12d and the first pillar 12c.
  • the second column 12d may include a first column body 123, a second column body 124 and a third column body 125 connected in sequence, and the outer diameter of the second column body 124 is larger than that of the first column body 123 and the third column body 125, the end of the first cylinder 123 facing away from the second cylinder 124 is provided with a boss 123a, the outer diameter of the boss 123a is larger than the outer diameter of the first cylinder 123, that is, the first cylinder 123 is located at between the second cylinder 124 and the boss 123a.
  • the boss 123a and the first cylinder 123 are provided with thread grooves, the other end of the first strut 12c is provided with an external thread, and the other end of the first strut 12c extends into the thread groove and is threadedly connected with the thread groove.
  • the end of the third cylinder 125 away from the second cylinder 124 may be provided with a pressure sensor 125a, the pressure sensor 125a is electrically connected to the circuit board 11a, and the pressure sensor 125a is used to detect the pressure on the pen tip 12b when writing. , so as to know the writing pressure of the pen tip 12b on the touch screen of the terminal device in real time.
  • the third cylinder 125 is provided with a sliding hole 125b penetrating through to the first cylinder 123 .
  • the sliding hole 125b may be provided with a first elastic member 125c and a first sliding block 125d, and one end of the first elastic member 125c abuts against. In contact with the inner wall surface of the sliding hole 125b, the other end of the first elastic member 125c is in contact with the first slider 125d.
  • the first elastic member 125c can be a spring, which can be used to provide elastic force to push the first sliding block 125d to move relative to the sliding hole 125b.
  • the first support post 12c and the second support post 12d are helically connected, the first support post 12c can move helically upward relative to the second support post 12d (the direction of the upward movement is along the pen The direction of the body 11 away from one end of the pen head 11b (in the direction of the arrow X1 as shown in FIG. 9 and FIG.
  • the arrangement of the first elastic member 125c and the pressure sensor 125a can provide a buffering force when the pressure on the pen tip 12b is relatively large, so that the pen tip 12b retracts along the inside of the pen body 11, so as to avoid the occurrence of excessive pressure on the pen tip 12b.
  • the pen tip 12b is worn and scratched on the touch screen.
  • the stylus 10 further includes a support frame 15 .
  • the support frame 15 is disposed in the pen body 11 and is used to fix the refill 12 , the shielding member 13 a and the receiving frame 15 .
  • the electrode 13b is in the pen body 11 , and the circuit board 11a can be arranged on the support frame 15 .
  • the support frame 15 can be an insulating frame body, so that when the writing core 12, the shielding member 13a and the receiving electrode 13b are fixed, the support frame 15 can also be insulated from the writing core 12, the shielding member 13a and the receiving electrode 13b.
  • the support frame 15 can be a hollow cylinder, the interior of which is hollow, so that the support frame 15 can be sleeved and connected to the outer periphery of the refill 12 .
  • the support frame 15 may include a first support portion 15a, a second support portion 15b and a third support portion 15c connected in sequence along the axial direction X of the pen body 11, and the first support portion 15a may be a long column. That is, the length in the axial direction of the first bracket portion 15a is greater than the length in the radial direction of the first bracket portion 15a, and the axial direction of the first bracket portion 15a coincides with the axial direction X of the pen body 11 .
  • the first bracket portion 15a may have a first positioning groove 150 , and the first bracket portion 15a is sleeved on the outer periphery of the second pillar 12d of the refill 12 , that is, the second pillar 12d of the refill 12 may be located in the first positioning slot 150 middle. More specifically, in order to effectively define the position of the refill 12 along the axial direction X of the pen body 11 , that is, to define the movement position of the second support 12d in the first positioning groove 150 along the axial direction X of the pen body 11 .
  • the groove wall surface of the first positioning groove 150 can be provided with a bump 150a, and the bump 150a can be set approximately corresponding to the first cylinder 123 of the second support 12d, so that the writing pressure on the pen tip 12b is relatively large, so that the pen tip 12b drives the
  • the first strut 12c and the second strut 12d move along the axial direction X of the pen body 11 away from the end of the pen head 11b (for ease of description, this direction is referred to as upward movement, as shown by the upward arrow X1 in FIG.
  • the pen tip 12b can drive the first support 12c and the second support 12d along the axial direction X of the pen body 11 toward one end of the writing head 11b (for ease of description, this direction is referred to as downward movement, as shown in the figure).
  • the outer diameter of the second cylinder 124 is larger than that of the first cylinder 123. the outer diameter, so that the second post 124 can be used to abut against the bump 150a when the second post 12d moves downward, so as to limit the amount of movement of the second post 12d downward, thereby limiting the return of the pen tip 12b to the pen tip 11b amount so that the pen tip 12b can re-enable writing.
  • the second bracket portion 15b is a columnar body, and the second bracket portion 15b can be sleeved on the outer periphery of the shielding member 13a.
  • the second bracket portion 15b may be provided with a second positioning groove 151 communicating with the first positioning groove 150, and the shielding member 13a may be at least partially located in the second positioning groove 151.
  • the third bracket portion 15c is also a columnar body, the outer diameter of the third bracket portion 15c is smaller than the outer diameter of the second bracket portion 15b, and the third bracket portion 15c can also be sleeved on the outer periphery of the shielding member 13a, Further, the third bracket portion 15c is located inside the receiving electrode 13b, that is, the third bracket portion 15c is located between the outer periphery of the shield 13a and the inner wall surface of the receiving electrode 13b.
  • a first step 130 is provided on an end of the shielding member 13a corresponding to the third bracket portion 15c away from the second bracket portion 15b, and the stepped surface of the first step 130 abuts against the third bracket portion 15c.
  • One end face of the second bracket portion 15b away from the second bracket portion 15b can prevent the third bracket portion 15c from falling off the shielding member 13a by utilizing the abutting effect of the first step 130 .
  • a second step 152 may be protruded on the outer periphery of the end of the third bracket portion 15c away from the second bracket portion 15b, and the second step 152 abuts on the inner wall surface of the receiving electrode 13b, so that the second step 152 can be used
  • the abutting action of the step 152 can define the position of the third bracket portion 15c along the radial direction of the receiving electrode 13b.
  • the support frame 15 further includes a fourth support portion 15d, the fourth support portion 15d is disposed at an end of the first support portion 15a away from the second support portion 15b,
  • the four bracket parts 15d have a vertical plate-like structure.
  • the fourth bracket part 15d extends along the axial direction X of the pen body 11 (see FIG. 4 ).
  • the circuit board 11a can be fixed in the pen body 11.
  • the fourth bracket portion 15d is arranged on the first bracket portion 15a, the first electrode 12a, the shielding member 13a, the receiving electrode 13b and the circuit board can be easily 11a electrical connection.
  • the stylus 10 further includes a second elastic member 16 , the second elastic member 16 can be disposed inside the support frame 15 , and the second elastic member 16 is The elastic member 16 can be sleeved on the outer circumference of the first pillar 12c and pressed between the support frame 15 and the first cylinder 123 of the second pillar 12d.
  • the second elastic member 16 may be disposed in the first positioning groove 150 of the first bracket portion 15a, and the first positioning groove 150 is formed with a first stepped surface 150b, the first stepped surface 150b and the above-mentioned protrusions 150a are arranged at intervals, one end of the second elastic member 16 abuts on the first step surface 150b, and the other end of the second elastic member 16 abuts on the end face of the boss 123a facing away from the first cylinder 123, so that the second elastic The component 16 is pressed between the first step surface 150b and the end surface of the boss 123a facing away from the first cylinder 123 .
  • the second elastic member 16 Since the second elastic member 16 is in a compressed state, the second elastic member 16 has a tendency to stretch upward (ie, the direction indicated by the upward arrow direction X1 in FIG. 11 ), so that the second elastic member 16 can push the second elastic member 16
  • the post 12d pushes upward until the second post 12d abuts against the pressure sensor 125a, thereby effectively fixing the second post 12d.
  • the second post 12d, the first post 12c and the pen tip 12b are all fixed.
  • the two pillars 12d cannot continue to move upward, so that the pen tip 12b cannot generate a backward stroke even under the action of writing pressure (ie, prevents the pen tip 12b from moving along the pen body 11 away from the pen tip 11b).
  • the second elastic member 16 can be used to provide an initial pre-pressure to fix the pen tip 12b and prevent the pen tip 12b from having a backward stroke, thereby preventing the pen tip 12b from retreating and affecting the writing experience.
  • the stylus 10 further includes a third elastic member 17 , and the third elastic member 17 is connected with the third cylinder 125 , and the third elastic member 17 is used for It is electrically connected to the circuit board 11a to realize the electrical connection between the first electrode 12a and the circuit board 11a.
  • the third elastic member 17 can be a conductive spring, and the third elastic member 17 has a sleeve portion 170 and a connecting portion 171 , the sleeve portion 170 is annular, and is sleeved on the third cylinder 125 .
  • one end of the connecting portion 171 is connected to the sleeve portion 170 , and the other end extends along the length direction of the pen holder 11c toward the circuit board 11a to be electrically connected to the circuit board 11a .
  • the electrical connection between the first electrode 12a and the circuit board 11a is realized by using the third elastic member 17.
  • the electrical connection method is simple, and because the sleeve portion 170 of the third elastic member 17 is sleeved on the outer periphery of the third cylinder 125, so The connection stability between the third elastic member 17 and the third column body 125 can be improved, thereby improving the electrical connection reliability between the first electrode 12a and the circuit board 11a.
  • the stylus 10 further includes a switch element 14 .
  • the circuit board 11 a is provided with a power supply terminal 111 and a ground terminal 112 .
  • the first electrode 12 a is connected to the terminal.
  • the receiving electrode 13b and/or the shielding member 13a are connected to the ground terminal 112 through the switching element 14, and when the terminal device sends the second signal, the receiving electrode 13b and/or the shielding member 13a are connected through the switching element 14. on the power supply side.
  • the receiving electrode 13b and/or the shielding member 13a are connected to the ground terminal 112 or the power supply terminal 111 through the switching element 14, which can facilitate the ground connection and conductive connection of the receiving electrode 13b, the shielding member 13a and the circuit board 11a.
  • the receiving electrode 13b when the first electrode 12a sends the first signal to the terminal device, the receiving electrode 13b can be connected to the ground terminal 112 through the switch element 14, or the shield 13a can be connected to the ground terminal 112 through the switch element 14, or , the receiving electrode 13b and the shielding member 13a can be connected to the ground terminal 112 through the switch element 14, so as to realize the grounding connection between the shielding member 13a, the receiving electrode 13b and the circuit board 11a.
  • the receiving electrode 13b when the terminal device sends the second signal, the receiving electrode 13b may be connected to the power supply terminal through the switching element 14, or the shielding member 13a may be connected to the power supplying terminal through the switching element 14, or the receiving electrode 13b and the shielding member 13a may be connected to the power supply terminal. All of them can be connected to the power supply terminal through the switch element 14, so as to realize the conductive connection between the receiving electrode 13b, the shielding member 13a and the circuit board 11a.
  • the switching element 14 may include, but is not limited to, a relay (eg, a time relay), an analog switch, and the like.
  • FIG. 13 is a cross-sectional view of the internal structure of the stylus 10 near the tip of the pen.
  • the shielding member 13a and the receiving electrode 13b can be completely disposed in the pen body 11, or the shielding member 13a And/or the receiving electrode 13b may be partially disposed in the pen body 11 , and then additional components may be provided on the shield 13a and/or the receiving electrode 13b to extend outside the pen body 11 .
  • a conductive ring 13c may be protruded from the outer periphery of the shielding member 13a and/or the receiving electrode 13b, and the conductive ring 13c may be exposed at least partially outside the pen body 11 .
  • the conductive ring 13c can be protruded on the outer periphery of the shielding member 13a, or the conductive ring 13c can be protruded on the outer periphery of the receiving electrode 13b, or the conductive ring 13c can be protruded on the outer periphery of the shielding member 13a and the receiving electrode 13b at the same time.
  • the conductive ring 13c is protruded from the outer periphery of the shielding member 13a and/or the receiving electrode 13b, and the conductive ring 13c is at least partially exposed outside the pen body 11, so as to reduce the occupation of the inner space of the pen body 11 by the conductive ring 13c
  • using the conductive ring 13c can increase the area of the shielding member 13a or the receiving electrode 13b, thereby improving the signal receiving capability of the shielding member 13a or the receiving electrode 13b.
  • the arrangement of the conductive ring 13c can increase the projection area of the shielding member 13a and/or the receiving electrode 13b along the direction perpendicular to the touch screen when the touch pen 10 is applied to the touch screen of the terminal device, thereby The signal receiving capability of the stylus 10 in a usage scenario that is perpendicular or nearly perpendicular to the touch screen can be enhanced.
  • the conductive ring 13c is at least partially exposed outside the pen body 11, and the conductive ring 13c is disposed on the shielding member 13a and/or the portion of the receiving electrode 13b close to the pen head 11b, the position of the conductive ring 13c from the pen head 11b is relatively Therefore, the conductive ring 13c is relatively close to the touch screen of the terminal device matched with the stylus 10.
  • the conductive ring 13c since the conductive ring 13c is exposed outside the pen body 11, it does not need to be blocked by the pen tip 11b, so that the shielding member 13a and/or the receiving electrodes 13b have stronger signal reception capabilities.
  • the conductive ring 13c is provided on the outer periphery of the shielding member 13a.
  • the conductive ring 13c may include a first portion 132 and a second portion 133 , the first portion 132 may be arranged around the outer circumference of the shielding member 13a , and the first portion 132 may be arranged around the circumference of the shielding member 13a , the second part 133 is connected to the first part 132, and at the same time, the second part 133 is integrally formed with the pen body 11 by means of injection molding, so as to not only achieve the purpose of fixing the shielding member 13a, but also simplify the conductive Processing of the ring 13c.
  • the conductive ring 13c can be made of conductive materials such as metal copper, copper alloy, aluminum or aluminum alloy, so as to have good conductivity.
  • the shielding member 13a is annular, which is sleeved on the outer periphery of the refill 12 and is spaced from the first electrode 12a of the refill 12, thereby shielding
  • the element 13a is not in contact with the first electrode 12a, which can prevent the circuit of the stylus 10 from being short-circuited due to the electrical connection between the first electrode 12a and the shielding element 13a due to the contact of the shielding element 13a with the first electrode 12a.
  • the receiving electrode 13b is also ring-shaped, and the receiving electrode 13b can be arranged at intervals from the shielding member 13a, and then the electrical connection between the receiving electrode 13b and the shielding member 13a is realized through the conductive member 13d, or, the receiving electrode 13b is sleeved on the shielding member 13a.
  • the receiving electrode 13b can be connected to the shielding member 13a in contact with each other, so as to realize the electrical connection between the receiving electrode 13b and the shielding member 13a. In this way, the receiving electrode 13b and the shielding member 13a can be electrically connected in various ways, which can be selected according to the actual situation.
  • the electrical connection manners of the receiving electrode 13b and the shielding member 13a will be illustrated by way of example below.
  • the receiving electrode 13b is connected to the shielding member 13a in contact with each other to realize the electrical connection between the receiving electrode 13b and the shielding member 13a.
  • the receiving electrode 13b is in contact with the shielding member 13a, since the receiving electrode 13b is sleeved on the outer periphery of the shielding member 13a, at least part of the inner wall surface of the receiving electrode 13b is in contact with at least part of the outer wall surface of the shielding member 13a, so as to realize the receiving Electrode 13b is electrically connected to shield 13a.
  • the receiving electrode 13b and/or the shielding member 13a may be provided with a stepped portion, and the receiving electrode 13b and the shielding member 13a may be contacted and connected through the stepped portion to realize the electrical connection between the receiving electrode 13b and the shielding member 13a.
  • the receiving electrode 13b in an example in which the receiving electrode 13b is connected to the shielding member 13a in contact, at least part of the inner wall surface 1310 of the receiving electrode 13b is in contact with at least part of the outer peripheral surface 134 of the shielding member 13a. At least part of the inner diameter of the receiving electrode 13b and the outer diameter of the shielding member 13a may be substantially equal.
  • the receiving electrode 13b may be in the shape of a tapered ring, which includes a first end 131a and a second end 131b opposite to each other, and the second end 131b may be the end facing the pen body 11 where the pen tip 11b is located.
  • the diameter gradually decreases from the first end 131a to the second end 131b, and the inner diameter of the second end 131b is approximately equal to the outer diameter of the shielding member 13a, so that the inner wall surface 1310 of the second end 131b can be aligned with the outer peripheral surface of the shielding member 13a 134 contacts to achieve contact-type electrical connection between the two.
  • the inner wall surface 1310 of the second end 131b of the receiving electrode 13b is in contact with the outer peripheral surface 134 of the shielding member 13a to realize electrical connection.
  • the electrical connection method is simple and reliable, which is beneficial to ensure the reliability of the electrical connection between the receiving electrode 13b and the shielding member 13a. .
  • the receiving electrode 13b and/or the shielding member 13a are provided with a step portion 13e, and the receiving electrode 13b and the shielding member 13a can pass through the step portion 13e Contact connection.
  • the receiving electrode 13b may be provided with a stepped portion 13e, and the stepped portion 13e on the receiving electrode 13b is in contact with the shielding member 13a, or the shielding member 13a may be provided with a stepped portion 13e, and the stepped portion 13e on the shielding member 13a and the receiving electrode 13b Contact connection.
  • both the shielding member 13a and the receiving electrode 13b may be provided with a stepped portion 13e, and the stepped portion 13e on the shielding member 13a is in contact with the stepped portion 13e on the receiving electrode 13b.
  • the shielding member 13a is provided with the step portion 13e as an example for description.
  • the receiving electrode 13b is a conical ring shape, and the receiving electrode 13b includes a first end 131a and a second end 131b opposite to each other, and the second end 131b may be the end facing the pen body 11 where the pen head 11b is located, The diameter of the receiving electrode 13b gradually decreases from the first end 131a to the second end 131b.
  • the outer peripheral surface of the shielding member 13a is provided with a stepped portion 13e, the stepped portion 13e can be disposed around the outer circumference of the shielding member 13a, and the stepped portion 13e can abut on the end face of the second end 131b of the receiving electrode 13b, so as to utilize the
  • the step portion 13e can connect the shielding member 13a and the receiving electrode 13b in contact to realize the contact-type electrical connection between the two.
  • the position in the axial direction X of 11 prevents the receiving electrode 13b from being detached from the shield 13a.
  • the stepped portion 13e is provided on the outer periphery of the shielding member 13a, the use of the stepped portion 13e can increase the projection area of the shielding member 13a on the touch screen along the vertical direction of the terminal device, so that the touch screen of the stylus 10 can be enhanced.
  • the signal receiving capability of the shielding member 13 a in a usage scenario that is perpendicular or close to being perpendicular to the touch screen can further improve the overall signal receiving capability of the touch pen 10 .
  • the step portion 13e can be arranged around the circumference of the shielding member 13a, so that the contact area between the step portion 13e and the receiving electrode 13b can be increased, and the contact reliability of the two can be improved.
  • the stepped portion 13e may also be provided around a quarter, half or three quarters of the circumference of the shielding member 13a, as long as the stepped portion 13e is provided on the outer circumference of the shielding member 13a That is, this embodiment does not specifically limit this.
  • the receiving electrode 13b and the shielding member 13a are connected through a conductive member 13d.
  • the conductive member 13d may be connected to one of the receiving electrode 13b and the shielding member 13a.
  • the conductive member 13d may be connected to the shielding member 13a, or the conductive member 13d may be connected to the receiving electrode 13b.
  • the receiving electrode 13b and the shielding member 13a are electrically connected through the conductive member 13d, so that the receiving electrode 13b and the shielding member 13a do not need to be in contact, but are electrically connected through the conductive member 13d, and the electrical connection method is more flexible.
  • the conductive member 13d may include at least one of a conductive bearing, a conductive spring or a flexible circuit board 11a.
  • the conductive member 13d may include a conductive spring connected between the shield member 13a and the receiving electrode 13b.
  • the conductive member 13d includes a first electrical connection portion 131c and a second electrical connection portion 131d, the first electrical connection portion 131c is connected to one of the shielding member 13a and the receiving electrode 13b, and the second electrical connection portion 131d is connected to one of the shielding member 13a and the receiving electrode 13b.
  • the other of the shielding member 13a and the receiving electrode 13b, the first electrical connection portion 131c and/or the second electrical connection portion 131d is also connected to the circuit board 11a. In this way, while the electrical connection between the shielding member 13a and the receiving electrode 13b can be achieved, the electrical connection between the shielding member 13a, the receiving electrode 13b and the circuit board 11a can also be achieved.
  • the first electrical connection portion 131c is connected to the shielding member 13a
  • the second electrical connection portion 131d is connected to the receiving electrode 13b
  • the first electrical connection portion 131c is connected to the circuit board 11a
  • the second electrical connection portion 131d is connected to the circuit board 11a.
  • the first electrical connection portion 131c and the second electrical connection portion 131d are both connected to the circuit board 11a.
  • the second power connection portion 131d is connected to the circuit board 11a as an example.
  • first electrical connection portion 131c when the first electrical connection portion 131c is connected to the shielding member 13a, it may abut on the shielding member 13a, or the first electrical connection portion 131c may be annularly disposed on the shielding member 13a.
  • second electrical connection portion 131d when the second electrical connection portion 131d is connected to the receiving electrode 13b, it can abut on the receiving electrode 13b, or the second electrical connection portion 131d can be arranged around the receiving electrode 13b.
  • the first electrical connection portion 131c may be annularly disposed on the shielding member 13a.
  • the first electrical connection portion 131c may have a first annular portion (not shown), and the first annular portion may be sleeved and connected to the shielding member 13a, so that the conductive member 13d and the shielding member 13a can be improved. connection reliability.
  • the first electrical connection portion 131c may abut on the shielding member 13a.
  • the first electrical connection portion 131c may include an abutting portion 137 and a first annular portion 136, and the abutting portion 137 may abut on the outer periphery of the shielding member 13a and be located in the second positioning groove of the second bracket portion 15b 151 inside.
  • the first annular portion 136 is connected to the abutting portion 137 . It can be seen from the foregoing that the second bracket portion 15b is sleeved on the outer periphery of the shielding member 13a.
  • the second bracket portion 15b is provided with There are a first avoidance hole 153 and a first winding hole 154.
  • the setting position of the first avoidance hole 153 on the second bracket portion 15b is corresponding to the contact portion 137, and the first avoidance hole 153 is along the
  • the second bracket portion 15b penetrates in the radial direction, and the first winding hole 154 is circumferentially provided along the outer periphery of the second bracket portion 15b.
  • the first avoidance hole 153 can provide a space for the abutment portion 137 to be disposed, and at the same time, the first annular portion 136 can protrude to the outside of the first avoidance hole 153 along the first avoidance hole 153 , thereby The first annular portion 136 may be disposed around the outer circumference of the second bracket portion 15b along the first winding hole 154 .
  • the first winding hole 154 is provided on the outer circumference of the second bracket portion 15b, so that the first annular portion 136 can be surrounded in the first winding hole 154, so that the first winding hole 154 can be connected to the first annular portion 136 It plays a guiding and limiting role to ensure that the conductive member 13d is always connected with the second bracket portion 15b.
  • the conductive member 13d can be a conductive spring, and the abutting portion 137 abuts on the outer periphery of the shielding member 13a and is located inside the second positioning groove 151 of the second bracket portion 15b, so that the second positioning groove 151 is used.
  • the inner wall of the abutting portion 137 faces the abutting action, so that the abutting portion 137 can always firmly abut on the outer peripheral surface of the shielding member 13a, thereby improving the electrical connection reliability between the conductive member 13d and the shielding member 13a.
  • the second power connection portion 131d can be annularly disposed on the receiving electrode 13b.
  • the second power connection portion 131d has a second annular portion 138, and the second annular portion 138 is sleeved and connected to the outer periphery of the receiving electrode 13b.
  • the first electrical connection portion 131c can also be connected to the second electrical connection portion 131d to realize the electrical connection between the shielding member 13a and the receiving electrode 13b.
  • the first annular portion 136 of the first electrical connection portion 131c can extend along the first winding hole 154 to connect with the second electrical connection portion 131d.
  • the second power connection portion 131d further includes an extension portion 139 , the extension portion 139 is connected with the second annular portion 138 , and the extension portion 139 can extend along the pen body
  • the axial direction X of 11 extends to connect with the circuit board 11a, and the extension portion 139 is connected with the first annular portion 136, so as to realize the connection between the first electrical connection portion 131c and the circuit board 11a through the second electrical connection portion 131d the goal of.
  • the manner in which the extension portion 139 and the first annular portion 136 are connected together may include: welding the extension portion 139 and the first annular portion 136 , or direct contact between the extension portion 139 and the first annular portion 136 .
  • the position of the first annular portion 136 close to the extension portion 139 can be formed into a hook shape, and the extension portion 139 can be hooked on the hook, so as to prevent the extension portion 139 from being separated from the first annular portion 136 , so that the The extension portion 139 is always connected to the first annular portion 136 , so that the first electrical connection portion 131c and the second electrical connection portion 131d are always electrically connected.
  • the extension portion 139 can be extended to The circuit board 11a is connected, and the outer periphery of the second bracket portion 15b may further be provided with a second avoidance hole 155 extending along the axial direction of the second bracket portion 15b, and the second avoidance hole 155 extends from the second bracket portion 15b.
  • the extension portion 139 extends along the axial direction X of the pen body 11 to the first bracket portion 15a, so that the extension portion 139 can extend in the second recess hole 155 to the position of the fourth bracket portion 15d and connect to the circuit board 11a.
  • the positioning and limiting of the extension portion 139 can be realized, and the space occupied by the extension portion 139 on the interior of the pen body 11 can also be reduced.
  • the stylus 10 further includes a bearing bracket 18, the bearing bracket 18 is arranged in the pen body 11, and the bearing bracket 18 is located at the end of the pen body 11 away from the pen head 11b for further supporting
  • the circuit board 11a is fixed.
  • the bearing bracket 18 is connected to the fourth bracket portion 15d of the support bracket 15, so that the bearing bracket 18 and the fourth bracket portion 15d together form a structure for fixing the circuit board 11a, so that the circuit board 11a can be effectively fixed,
  • the circuit board 11a is prevented from being displaced in the pen body 11, and the connection reliability of the circuit board 11a and other components (eg, the first electrode 12a, the second power connection part 131d) is ensured.
  • one end of the bearing bracket 18 is detachably connected to the fourth bracket portion 15d , and the other end of the bearing bracket 18 can extend along the axial direction X of the pen body 11 .
  • one end of the bearing bracket 18 can be connected to the fourth bracket portion 15d by means of snap-fitting, so as to facilitate the disassembly and assembly of the bearing bracket 18 and the fourth bracket portion 15d.
  • a first engaging portion 18a may be provided at one end of the bearing bracket 18, a second engaging portion 156 may be provided at the position where the fourth bracket portion 15d is connected to the bearing bracket 18, and the second engaging portion 156 is connected to the first engaging portion 156.
  • An engaging portion 18a is engaged and connected.
  • the first engaging portion 18a may be a convex or a concave
  • the second engaging portion 156 may be a concave or a convex.
  • the stylus 10 further includes a battery 19 , and the other end of the support bracket 18 can be bent to form a battery accommodating groove 19 a , and the battery accommodating groove 19 a can be used to accommodate the battery 19 , so that the battery 19 can be placed on the pen body 11 . It is also convenient for the electrical connection between the battery 19 and the circuit board 11a while being fixed in the circuit board 11a.
  • the stylus 10 further includes a cover body 19b, and the cover body 19b is connected to the carrier bracket 18 to press the circuit board 11a on the carrier bracket 18 to further fix the circuit board 11a.
  • the cover body 19b is detachably connected to the bearing bracket 18, specifically, a third engaging portion 190 is provided on the cover body 19b, and a position corresponding to the third engaging portion 190 is provided on the bearing bracket 18 There is a fourth engaging portion 18c, and the third engaging portion 190 is engaged with the fourth engaging portion 18c, so as to realize the cooperation between the cover body 19b and the bearing bracket 18 .
  • the third engaging portion 190 may be a hook or a slot
  • the fourth engaging portion 18c may be a slot or a hook.
  • the stylus 10 disclosed in the embodiment of the first aspect of the present application is electrically connected with the shielding member 13a and the receiving electrode 13b.
  • the shielding member 13a and the receiving electrode 13b are electrically connected to each other. connected, the shielding member 13a and the receiving electrode 13b are at the same DC potential at this time, and the shielding member 13a and the receiving electrode 13b can be used as receiving electrodes at the same time, so that the receiving area of the stylus 10 for the terminal device can be increased, and the stylus 10 can be improved. receiving capacity.
  • the shielding member 13a and the receiving electrode 13b can be used as isolation electrodes at the same time to prevent the divergence of the first signal, so that the terminal device can receive the first signal .
  • a second aspect of the embodiment of the present application further discloses a stylus system 20 .
  • the stylus system 20 includes a terminal device 21 and the stylus as described in the first aspect above. 10.
  • the terminal device 21 may include a touch screen 21 a, and the touch pen 10 may write on the touch screen 21 a of the terminal device 21 .
  • the terminal device 21 may include, but is not limited to, a tablet computer, a mobile phone, a notebook computer, and the like.
  • the touch screen 21a of the terminal device 21 can be a flexible screen, for example, a folding screen, a scroll screen, a pebble screen, a four-curved screen, etc. Therefore, the solution of the touch pen 10 in this embodiment is adopted.
  • the electrode 13b is electrically connected, and the shielding member 13a and the receiving electrode 13b can be used as receiving electrodes at the same time when the folding screen sends the second signal to the stylus 10, which can effectively relieve the folding screen caused by the TP layer being closer to the display panel layer.
  • the interference, load and attenuation to touch are large, resulting in the problem of weak interaction between the stylus 10 and the terminal device 21 .
  • the touch screen 21a may also include a non-folding screen.
  • an embodiment of the present application further discloses a method for controlling a stylus 10 and a terminal device 21 , and the stylus 10 may be the one described in the first aspect above.
  • the stylus 10, that is, the stylus 10 includes the aforementioned first electrodes 12a, shielding members 13a, and receiving electrodes 13b.
  • the control method includes:
  • the shielding member and the receiving electrode prevent the first signal from spreading.
  • the shielding member 13a and the receiving electrode 13b can be used as isolation electrodes, so as to prevent the first signal from spreading.
  • the setting method of the shielding member 13a, etc. reference may be made to the content described in the first aspect, and details are not repeated here.
  • the shielding member 13a and the receiving electrode 13b can be used as receiving electrodes, so that the second signal sent by the terminal device 21 can be received.
  • step 32 there is no sequence of steps between step 32 and step 31, as long as the shielding member 13a and the receiving electrode 13b are at the first potential when the first electrode 12a sends the first signal to the terminal device 21, so as to prevent the first potential. Divergence of a signal, and when the terminal device 21 sends the second signal to the stylus 10 , can be at the second potential to receive the second signal.
  • the arrangement of the shielding member 13a and the receiving electrode 13b, etc. please refer to the first aspect. content, which will not be repeated here.

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Abstract

本申请公开了一种触控笔(10)，触控笔(10)应用于具有触控屏(21a)的终端设备(21)，触控笔(10)包括笔身(11)、笔芯(12)、屏蔽件(13a)和接收电极(13b)，笔身(11)中设有电路板(11a)，笔芯(12)至少部分位于笔身(11)中，笔芯(12)具有电连接于电路板(11a)且用于向触控屏(21a)发射第一信号的第一电极(12a)，屏蔽件(13a)和接收电极(13b)用于在第一电极(12a)向触控屏(21a)发射第一信号时处于第一电位，屏蔽件(13a)和接收电极(13b)用于在终端设备(21)发送第二信号时处于第二电位以接收终端设备(21)发送的第二信号。采用本实施例的触控笔(10)，能够增大触控笔(10)对触控屏(21a)的信号接收面积，提高触控笔(10)的接收能力。另外，本申请还公开了一种具有触控笔(10)的触控笔系统(20)以及触控笔(10)的控制方法。

Description

触控笔、触控笔系统及触控笔的控制方法 技术领域
本申请涉及电子信息技术领域，尤其涉及一种触控笔、触控笔系统及触控笔的控制方法。
背景技术
随着科学技术的不断发展，为了实现对终端设备的便捷输入，触控笔应运而生。通过触控笔和终端设备的触控屏之间的信号交互，触控笔和终端设备的触控屏相互匹配，并确定触控笔在触控屏上的位置坐标，进而实现触控笔在终端设备上的有效使用。因此，如何提高触控笔和触控屏之间的信号交互效率，是目前亟待解决的问题。
发明内容
本申请实施例公开了一种触控笔、触控笔系统及触控笔的控制方法，能够提高触控笔和触控屏之间的信号接收，以提高主动触控笔的接收性能。
为了实现上述目的，第一方面，本申请实施例公开了一种触控笔，所述触控笔应用于具有触控屏的终端设备，所述触控笔包括
笔身，所述笔身中设有电路板；
笔芯，所述笔芯至少部分设于所述笔身中，所述笔芯具有第一电极，所述第一电极电连接于所述电路板，用于向所述终端设备发送第一信号；以及
接收电极和屏蔽件，所述接收电极和所述屏蔽件在所述第一电极向所述终端设备发送第一信号时处于第一电位，所述接收电极和所述屏蔽件在所述终端设备发送第二信号时处于第二电位以接收所述第二信号。
第二方面，本申请实施例公开了一种触控笔系统，所述触控笔系统包括终端设备和如上述第一方面所述的触控笔，所述终端设备包括触控屏，所述触控笔用于在所述触控屏上进行书写。
第三方面，本申请实施例公开了一种触控笔的控制方法，所述触控笔为如上述第一方面所述的触控笔，所述方法包括：
在所述第一电极向所述终端设备发送第一信号时，通过所述屏蔽件以及所述接收电极阻碍所述第一信号发散；
通过所述屏蔽件以及所述接收电极接收所述终端设备发送的第二信号。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅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是相关技术中的折叠屏为on-cell模式的示意图；
图2是相关技术中的折叠屏和非折叠屏的叠层结构示意图；
图3是相关技术中的触控笔与折叠屏和非折叠屏配合连接时的信号衰减示意图；
图4是本申请实施例公开的触控笔的结构示意图；
图5是本申请实施例公开的触控笔的局部结构示意图；
图6是本申请实施例公开的触控笔的触控笔(省略笔身)的局部结构分解示意图；
图7是图6的沿I-I方向的内部结构剖视图；
图8是图7中A处的放大图；
图9是本申请实施例公开的笔芯的结构示意图；
图10是图9中的笔芯的内部结构剖视图；
图11是本申请实施例公开的支撑架的结构示意图；
图12是本申请实施例公开的屏蔽件与接收电极通过开关元件与电路板连接的结构框图；
图13是本申请实施例的触控笔在靠近笔头位置的内部结构剖视图；
图14是本申请实施例的屏蔽件与接收电极接触式连接的一种结构示意图；
图15是本申请实施例的屏蔽件与接收电极接触式连接的一种内部结构剖视图；
图16是本申请实施例的屏蔽件与接收电极接触式连接的另一种结构示意图；
图17是本申请实施例公开的屏蔽件与接收电极通过导电件连接的结构示意图；
图18是本申请实施例公开的屏蔽件与接收电极通过导电件连接的内部结构剖视图；
图19是本申请实施例公开的笔芯设置在支撑架上的结构示意图；
图20是图19的结构分解示意图；
图21是本申请实施例公开的承载支架与盖体的结构示意图；
图22是本申请实施例公开的承载支架与盖体的部分结构分解示意图；
图23是本申请实施例公开的触控笔系统的结构示意图；
图24是本申请实施例公开的触控笔系统中触控笔与触控屏的信号交互示意图；
图25是本申请实施例公开的触控笔的控制方法的流程图。
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，所描述的实施例仅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。
在本申请中，术语“上”、“下”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本申请及其实施例，并非用于限定所指示的装置、元件或组成部分必须具有特定方位，或以特定方位进行构造及操作。
并且，上述部分术语除了可以用于表示方位或位置关系以外，还可能用于表示其他含义，例如术语“上”在某些情况下也可能用于表示某种依附关系或连接关系。对于本领域普通技术人员而言，可以根据具体情况理解这些术语在本申请中的具体含义。
此外，术语“安装”、“设置”、“设有”、“连接”应做广义理解。例如，可以是固定连接，可拆卸连接，或整体式构造；可以是机械连接，或电连接；可以是直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
此外，术语“第一”、“第二”等主要是用于区分不同的装置、元件或组成部分(具体的种类及构造可能相同也可能不同)，并非用于表明或暗示所指示装置、元件或组成部分的相对重要性及数量。除非另有说明，“多个”的含义为两个或两个以上。
当前，折叠屏手机模组的优势在于展开尺寸较大，类似于平板的显示尺寸，折叠起来则为普通手机大小。由于折叠性能需求，折叠手机的模组材料都为柔性可折叠材料，并且为了降低弯折应力，折叠手机的模组材料都做了减薄处理，如图1所示，图1示出了相关技术中折叠手机的折叠屏叠层结构，该折叠手机的叠层结构包括由上至下依次层叠设置的覆膜层(cover film层)、OCA1(Optically Clear Adhesive，光学胶)、POL(偏光片)、AMOLED(自发光屏)、PI膜(Polyimide，聚酰亚胺)、PSA(pressure sensitive adhesive，压敏胶)、BRACKET1(第一架体)以及BRACKET2(第二架体)。其中，覆膜层由原来的0.5mm左右的玻璃盖板改为CPI膜(透明聚酰亚胺薄膜)，OCA也采用抗剪切形变的胶材，同时，TP层(Touch panel，触摸层)集成为on-cell模式。
其中，on-cell模式是指：将触摸层嵌入到屏幕的彩色滤光片基板和偏光片之间的模式，即在显示 面板上配触摸传感器的模式。
如图2所示，折叠屏的on-cell触控模式决定了TP层(触摸层)相比于目前市面上绝大多数的笔记本电脑或者平板电脑产品不同。折叠手机的TP层距离显示面板层更近、更轻薄，触控干扰及负载更大，例如，如图2中的(a)所示，图2中的(a)示出了折叠屏的叠层结构示意图，折叠屏的TP层直接覆盖在显示面板层上，这种情况下对触控的干扰及负载更大。而如图2中的(b)所示，图2中的(b)示出了非折叠屏的叠层结构示意图，市面上大部分的触控屏多为外挂TP层，顾名思义是TP层在显示面板层已经装配完成后再安装，这种情况下TP层距离显示面板层比较远，负载和干扰比较小，但这种方式下，屏幕整体厚度较大，不利于弯折折叠。
另外，由于折叠屏可实现折叠，且折叠屏展开后的尺寸较大(通常为8英寸)左右，甚至可能更大(例如可能为10英寸)，这种尺寸下，TP层的负载更大。
因此，对于折叠屏而言，在on-cell模式与折叠屏展开后的大尺寸这两项因素下，折叠屏的TP层信号衰减较大，对于触控笔的应用来说带来较大的挑战。例如，如图3所示，普通的平板电脑与折叠屏手机(展开后的尺寸大致为8英寸)，在同样的测试手法下，示波器探测到的电压值，折叠屏低64.78％左右。例如，初始电压均设置为10V时，如图3中的(a)所示，图3中的(a)示出了触控笔与非折叠屏的平板电脑配合时的接收电压值的效果图，采用触控笔与普通的平板电脑(非折叠屏的平板电脑)配合时，触控笔的接收电压值为4.26V左右，而如图3中的(b)所示，图3中的(b)示出了触控笔与折叠屏的手机配合时的接收电压值的效果图，采用触控笔与折叠屏配合时，触控笔的接收电压值为1.5V左右。
由此可见，采用on-cell模式的折叠屏，由于折叠屏信号衰减较大，导致触控笔能接收到的信号量降低，大大影响了触控笔与折叠屏的交互效率，阻碍触控笔在折叠屏上的有效应用。
基于此，本申请第一方面公开了一种触控笔，所述触控笔应用于终端设备，所述触控笔包括：
笔身，所述笔身中设有电路板；
笔芯，所述笔芯至少部分设于所述笔身中，所述笔芯具有第一电极，所述第一电极电连接于所述电路板，用于向所述终端设备发送第一信号；以及
接收电极和屏蔽件，所述接收电极和所述屏蔽件在所述第一电极向所述终端设备发送第一信号时处于第一电位，所述接收电极和所述屏蔽件在所述终端设备发送第二信号时处于第二电位以接收所述第二信号。
一种可选地实施方式中，所述接收电极与所述屏蔽件电性连接。
一种可选地实施方式中，所述触控笔还包括开关元件，所述电路板上设有供电端以及接地端，在所述第一电极向所述终端设备发送第一信号时，所述接收电极和/或所述屏蔽件通过所述开关元件连接于所述接地端；在所述终端设备发送第二信号时，所述接收电极和/或所述屏蔽件通过所述开关元件连接于所述供电端。
一种可选地实施方式中，所述屏蔽件呈环状，所述屏蔽件套设在所述笔芯外周。
一种可选地实施方式中，所述接收电极呈环状，所述接收电极套设在所述屏蔽件外周。
一种可选地实施方式中，所述屏蔽件沿所述笔身的轴向的长度大于所述接收电极沿所述笔身的轴向的长度。
一种可选地实施方式中，所述接收电极和/或所述屏蔽件的外周凸设有导电环，所述导电环至少部分外露于所述笔身外部。
一种可选地实施方式中，所述接收电极与所述屏蔽件接触式连接。
一种可选地实施方式中，所述接收电极套设于所述屏蔽件的外周，所述接收电极的至少部分内壁面与所述屏蔽件的至少部分外壁面抵接，或者，所述接收电极和/或所述屏蔽件设有台阶部，所述接收电极和所述屏蔽件通过所述台阶部接触连接。
一种可选地实施方式中，所述接收电极与所述屏蔽件通过导电件连接。
一种可选地实施方式中，所述导电件包括导电轴承、导电弹簧或柔性电路板中的至少一种。
一种可选地实施方式中，所述导电件包括第一接电部和第二接电部，所述第一接电部连接于所述屏蔽件和所述接收电极中的一个，所述第二接电部连接于所述屏蔽件和所述接收电极中的另一个，所述第一接电部和/或所述第二接电部还连接于所述电路板。
一种可选地实施方式中，所述第一接电部具有第一环状部分，所述第一环状部分套设并连接于所述屏蔽件和所述接收电极中的一个。
一种可选地实施方式中，所述第二接电部具有第二环状部分，所述第二环状部分套设并连接于所述屏蔽件和所述接收电极中的另一个。
一种可选地实施方式中，所述触控笔还包括支撑架，所述支撑架设置在所述笔身中并用于固定所述笔芯、所述屏蔽件以及所述接收电极于所述笔身中，所述电路板设置在所述支撑架上。
一种可选地实施方式中，所述接收电极与所述屏蔽件间隔设置；
所述支撑架包括依次连接的第一支架部、第二支架部以及第三支架部，第一支架部具有第一定位槽，所述笔芯至少部分位于所述第一定位槽中，所述第二支架部具有与所述第一定位槽连通的第二定位槽，所述屏蔽件至少部分位于所述第二定位槽中，所述第三支架部套设在所述第二电极的外周并位于所述接收电极与所述屏蔽件之间。
一种可选地实施方式中，所述第二支架部设有沿其自身径向延伸的第一避空孔以及绕所述第二支架部的外周设置的第一绕设孔，所述第一绕设孔与所述第一避空孔连通；
所述第一接电部包括抵接部和第一环状部分，所述抵接部抵接于所述屏蔽件的外周与所述第二支架部之间，所述第一环状部分自所述第一避空孔延伸至所述第一绕设孔中以绕设在所述第二支架部的外周。
一种可选地实施方式中，所述第二支架部设有沿其自身轴向方向延伸的第二避空孔；
所述第二接电部包括第二环状部分和与所述第二环状部分连接的延伸部，所述第二环状部分套设并连接在所述接收电极的外周，所述延伸部沿着所述第二避空孔向所述电路板所在方向延伸至与所述电路板连接。
第二方面，本申请还公开了一种触控笔系统，包括终端设备和如上述第一方面所述的触控笔，所述终端设备包括触控屏，所述触控笔用于在所述触控屏上进行书写。
一种可选地实施方式中，所述触控屏为折叠屏、卷轴屏、鹅卵石屏、四曲面屏中的一种。
第三方面，本申请还公开了一种触控笔的控制方法，应用于上述第一方面的触控笔，所述方法包括：
在所述第一电极向所述终端设备发送第一信号时，通过所述屏蔽件以及所述接收电极阻碍所述第一信号发散；
通过所述屏蔽件以及所述接收电极接收所述终端设备发送的第二信号。
本申请公开的触控笔、触控笔系统及触控笔的控制方法中，该触控笔可应用在终端设备中，触控笔具有第一电极、屏蔽件及接收电极，第一电极用于向终端设备发射第一信号，而屏蔽件及接收电极可用于在第一电极向终端设备发射第一信号时处于第一电位，从而起到信号屏蔽、隔离作用，降低信号发散以提高第一电极与触控屏的信号交互能力，以及，屏蔽件及接收电极可用于在终端设备向触控笔发送第二信号时处于第二电位以接收第二信号，换言之，屏蔽件及接收电极可起到信号接收作用，可以增大触控笔对终端设备的信号接收面积，提高触控笔的接收能力。
此外，由于屏蔽件及接收电极还可起到信号阻碍发散作用，从而能够提升对触控笔的第一电极发送的第一信号的隔离强度，使得第一信号能够尽可能集中向与触控笔匹配的终端设备的触控屏的方向发送。
以下将结合附图对本方案详细说明。
第一方面，本申请实施例公开了一种触控笔，该触控笔可应用于具有触控屏的终端设备，从而可实现在触控屏上操作(例如书写)，以实现交互。其中，该终端设备可包括但不局限于平板电脑、手机或者是笔记本电脑等。该触控屏可为普通的平板电脑的触控屏(例如硬屏)，也可为手机或平板电脑的柔性屏(例如折叠屏、滑卷屏、鹅卵石屏、卷轴屏、四曲面屏等)。考虑到前面提及的折叠屏因TP层距离显示面板层很近，导致负载、干扰以及信号衰减较大，导致在折叠屏与触控笔配合使用时，折叠屏发送的信号衰减较大导致触控笔与折叠屏的交互效率较低，本实施例以该触控笔应用的触控屏为折叠屏为例进行说明，通过提升触控笔的接受能力，从而使得触控笔的接收能力与折叠屏的信号发送能力相匹配。
具体而言，请一并参阅图4至图6，图4是本申请实施例公开的触控笔的结构示意图，图5是本申请实施例公开的触控笔的局部结构示意图，图6是本申请实施例公开的触控笔(省略笔身)的局部结构分解示意图。本实施例的触控笔10包括笔身11、笔芯12、屏蔽件13a和接收电极13b。其中，笔身11内设有电路板11a，笔芯12至少部分设于笔身11中，该笔芯12可具有第一电极12a，该第一电极12a电连接于电路板11a，用于向与其配合使用的终端设备发射第一信号。屏蔽件13a和接收电极13b用于在第一电极12a向终端设备发射第一信号时处于第一电位。该屏蔽件13a和接收电极13b用于在终端设备发送第二信号时处于第二电位以接收第二信号。
其中，第二电位与第一电位可为不同电位，即，第一电位可为直流电位，其始终保持不变，例如其可为20V、40V等，而第二电位可处于变化状态，例如其可为20V或者是由20V变化至21V、22V等。
其中，该屏蔽件13a阻碍第一信号的发散，具体是指：由于触控笔10与终端设备的触控屏配合时，主要是通过触控笔10的笔芯12在终端设备的触控屏上进行书写的，因此，为了使得第一电极12a向终端设备的触控屏发射该第一信号时，第一信号能够集中向终端设备的触控屏发射，而不是沿着笔身11的各个方向无序发散，通过该屏蔽件13a和接收电极13b的设置，能够阻碍第一信号的无序发散，使得第一信号尽可能沿着朝向终端设备的触控屏的方向发射。
可以理解的是，该第一信号与第二信号可为不同信号，或者，该第一信号与第二信号也可为相同信号。
一种示例中，第一信号与第二信号为不同信号。考虑到触控笔10和终端设备的触控屏匹配时，往往是通过终端设备向触控笔10发射第二信号，从而能够与触控笔10进行配对，即，该第二信号可为配对信号，触控笔10的第二电极13可接收到该第二信号从而完成与该终端设备的触控屏的配对。在配对完成后，触控笔10的第一电极12a可向终端设备发射第一信号，即，第一电极12a为发射电极，该第一信号可包括驱动信号，为了减少第一信号的发散，使得第一信号能够更集中被终端设备接收，此时屏蔽件13a可用于在第一电极12a发射第一信号时，屏蔽该第一信号的发散，从而终端设备可接收到第一信号后，根据第一信号计算出触控笔10的坐标，同时解析该坐标的相关信息。
或者，该第一信号还可包括数字信号，例如，第一电极12a可发出该数字信号，该数字信号可包括压力信息或者是触控笔10上的功能键信息，从而使得终端设备能够接收到该信号并解析出压力信息或功能键信息等相关信息。换言之，在本实施例中，该触控笔10与终端设备之间的协议为双向协议，即，在uplink(上行)阶段，终端设备发射第二信号与触控笔10进行配对，第二电极13接收该配对信号进行匹配，而在downlink(下行)阶段，触控笔10的第一电极12a发射第一信号，此时屏蔽件13a隔离或屏蔽该第一信号的发散，从而使得终端设备可接收到该第一信号，即采用本实施例的方案，屏蔽件13a在不同的阶段能够处于不同的电位以执行不同的功能，即实现屏蔽件13a的分时复用。
另一种示例中，第一信号和第二信号可为相同信号，例如，第一信号和第二信号均可为配对信号，或者，第一信号和第二信号均可包括数字信号。
本实施例以该第一信号与第二信号为不同信号，且第二信号为配对信号，第一信号为驱动信号为例进行说明。
相关技术中，触控笔通常设置有发射电极、接收电极和屏蔽电极，发射电极用于负责向终端设备发送信号，屏蔽电极则用于负责屏蔽发射电极的信号扩散，其与接收电极的信号相隔绝，而接收电极则用于负责接收终端设备的发射信号，以实现与终端设备的配对。这种方式下，各个电极分别执行不同功能，且由于触控笔的体积通常较小，从而接收电极一般也不能做得太大，以避免过多占用触控笔的内部空间，同时也避免影响屏蔽电极的设置。而本实施例中，本实施例通过设置屏蔽件13a和接收电极13b，且接收电极13b与屏蔽件13a电性连接，从而接收电极13b与屏蔽件13a可同时具有屏蔽功能以阻碍第一信号的发散，以及，接收电极13b与屏蔽件13a还可同时具有接收功能以接收第二信号。此外，由于屏蔽件13a和接收电极13b的设置，能够在不对触控笔10的结构做出大幅改变、同时触控笔10使用的耗材也不会大幅增加、加工装配工艺也不会大幅复杂化的情况下，有效提升触控笔10的信号接收面积和信号屏蔽面积，有效提高触控笔10和触控笔10所应用的终端设备的交互能力。
可见，采用本实施例的方式，通过屏蔽件13a和接收电极13b，在需要进行信号接收(例如当需要接收终端设备发送的第二信号)时，屏蔽件13a和接收电极13b可处于第二电位，都可以作为接收电极具有接收功能，从而可以增加触控笔10的信号接收面积，提升触控笔10的信号接收能力。而当在触控笔10向终端设备发射信号时，例如在第一电极12a向终端设备发射第一信号时，此时该屏蔽件13a和接收电极13b处于第一电位可同时作为隔离电极以具有屏蔽功能，屏蔽件13a和接收电极13b可同时屏蔽或者是阻碍第一信号的发散，从而使得终端设备可接收该第一信号，提高被终端设备接收到的第一信号的信号强度，进而可计算出该触控笔10在终端设备上的坐标信息，或者其他由第一信号所携带的信息。
换言之，在上行阶段，即终端设备向触控笔10发送第二信号时，该屏蔽件13a和接收电极13b连接至导电电路，从而二者处于的第二电位可根据实际电位情况变化，例如可为20V，或者由20变化至21V、22V等。而在下行阶段，即，触控笔10向终端设备发送第一信号时，该屏蔽件13a和接收电极13b可接地，从而二者处于的第一电位可为直流电位，例如20V。
可以理解的是，由于屏蔽件13a和接收电极13b可同时用于接收第二信号，或者可同时用于阻碍第一信号的发散，因此，在屏蔽件13a和接收电极13b同时用于接收第二信号时，能够增加触控笔10的信号接收面积，提升信号接收强度。而在屏蔽件13a和接收电极13b同时用于阻碍第一信号的发散时，则能够增加触控笔10的信号屏蔽面积，提升对触控笔10的第一电极12a发送的第一信号的隔离强度，使得第一信号能够尽可能集中向与触控笔10匹配的触控屏的方向发送。
可以理解的是，该屏蔽件13a和接收电极13b处于第一电位或第二电位的方式可包括二者电连接或者是二者通过控制模块分别控制。
一种示例中，屏蔽件13a和接收电极13b可电性连接，从而屏蔽件13a和接收电极13b可处于相同电位，例如可处于第一电位或者是第二电位。采用屏蔽件13a和接收电极13b电性连接以处于相同电位的方式，连接方式简单可靠。
另一种示例中，屏蔽件13a和接收电极13b可通过控制模块分别控制，以控制屏蔽件13a和接收电极13b的电位。例如，屏蔽件13a和接收电极13b可分别连接至电路板11a，通过电路板11a上的控制模块(例如芯片)控制该屏蔽件13a和接收电极13b处于第一电位，或者，控制屏蔽件13a和接收电极13b处于第二电位。采用控制模块分别控制屏蔽件13a和接收电极13b，屏蔽件13a和接收电极13b的电位控制更加便捷。
可以理解的是，屏蔽件13a可为环状电极，屏蔽件13a可套设在第一电极12a(即笔芯12)的外周。相应的，接收电极13b同样可为环状电极，接收电极13b可套设在屏蔽件13a的外周。即，第一电极12a、屏蔽件13a以及接收电极13b沿着笔芯12的轴向方向依次套设，这样，可以减少第一电极 12a、屏蔽件13a以及接收电极13b对笔身11的沿其自身长度方向上的占用，使得触控笔10的整体结构更加紧凑。
此外，由于屏蔽件13a、接收电极13b可阻碍第一电极12a发射的第一信号的发散，且屏蔽件13a、接收电极13b可接收终端设备发送的第二信号，因此，将屏蔽件13a套设在第一电极12a的外周，同时接收电极13b套设在屏蔽件13a的外周，能够利于该第一信号的发散阻碍和第二信号的接收。
一些实施例中，该屏蔽件13a沿笔身11的轴向方向上的长度大于该接收电极13b沿笔身11的轴向方向上的长度，从而屏蔽件13a能够具有足够的屏蔽面积和接收面积，以实现对第一信号的屏蔽和对第二信号的接收。可以理解的是，在其他实施例中，接收电极13b的沿笔身11的轴向方向上的长度也可与屏蔽件13a相同或者是大于屏蔽件13a的长度，以进一步增大该触控笔10的对第一信号的屏蔽作用和对第二信号的接收作用。
请一并参阅图6至图8所示，一些实施例中，为了实现绝缘，该笔身11可采用绝缘材料制成。该笔身11至少可用于容置该笔芯12、屏蔽件13a和接收电极13b，以保护笔芯12、第二电极13和第三电极14。具体地，该笔身11可包括相互连接的笔头11b和笔杆11c，该电路板11a可设置在笔杆11c中，上述的笔芯12、屏蔽件13a以及接收电极13b可至少部分设置在笔杆11c中，从而触控笔10的整体结构紧凑，而且还可便于电路板11a与第一电极12a、屏蔽件13a、接收电极13b的电连接。
进一步地，笔头11b可采用非金属的柔性或者是软质材质制成，例如可采用硅胶或者是热塑性聚氨酯弹性体橡胶，从而笔头11b材质柔软，在书写时可以避免划伤终端设备的触控屏，尤其对质地较软的折叠屏起到较好的保护作用。另外，由于该笔头11b的材质采用非金属材质，从而该笔头11b对电信号(例如上述的第一信号、第二信号)无屏蔽作用或屏蔽效果可以忽略，从而能够便于该触控笔10在终端设备的触控屏上的书写。
可选地，为了便于触控笔10的书写，该笔头11b的形状可采用自与笔杆11c的连接处向背离笔杆11c的一端逐渐缩小的锥形状。
如图6所示，一些实施例中，笔芯12可包括笔尖12b、第一支柱12c、第二支柱12d以及笔夹12e。其中，笔尖12b包括主体部120和笔尖部121，主体部120为杆状，主体部120设置在笔杆11c中，且该主体部120具有该第一电极12a。笔尖部121设置在主体部120朝向笔头11b的一端，该笔尖部121可位于该笔头11b内。
请一并参阅图7、图9至图10，可选地，第一支柱12c为长条柱状，即其沿轴向方向上的尺寸大于沿径向方向上的尺寸，该第一支柱12c的一端可套设于该笔尖12b的外部，并与笔尖12b卡接，以固定笔尖12b与第一支柱12c的相对位置。具体地，第一支柱12c的用于套设于笔尖12b的外部的一端中空设置，即，第一支柱12c的一端设置有具有开口的容置腔122，该笔尖12b的主体部120自该开口伸入至容置腔122中并固定在容置腔122中，而笔尖12b的笔尖部121则位于该容置腔122的外部，从而该笔尖部121能够伸入至笔头11b中。
进一步地，为了便于固定主体部120于容置腔122中的位置，该笔夹12e可夹设在主体部120的外周并且位于该容置腔122中。具体地，该笔夹12e可采用弹性笔夹，该弹性笔夹弹性夹设在金属主体部120的外周，不仅可起到固定金属主体部120，防止笔尖12b在书写过程中发生沿触控笔10的径向晃动的作用，而且，由于主体部120通过笔夹12e的弹性夹设力作用固定在容置腔122中，替代了采用粘接或者是其他例如螺钉固定等方式固定该金属主体部120的方式，能够便于该笔尖12b的组装和更换。
请参阅图10，一些实施例中，该第二支柱12d同样为长条柱状，即其沿轴线方向上的尺寸大于沿径向方向上的尺寸，第二支柱12d的一端可采用螺旋连接的方式连接于第一支柱12c的背离笔尖12b的另一端，从而便于实现第二支柱12d与第一支柱12c的连接。
可选地，第二支柱12d可包括依次连接的第一柱体123、第二柱体124以及第三柱体125，第二柱 体124的外径大于第一柱体123、第三柱体125的外径，第一柱体123的背离第二柱体124的一端设置有凸台123a，该凸台123a的外径大于第一柱体123的外径，即，第一柱体123位于第二柱体124和凸台123a之间。该凸台123a、第一柱体123上设置有螺纹槽，第一支柱12c的另一端设置有外螺纹，第一支柱12c的另一端伸入螺纹槽中并与螺纹槽螺纹连接。
一些实施例中，第三柱体125的背离第二柱体124的一端可设置有压力传感器125a，压力传感器125a电连接至该电路板11a，压力传感器125a用于检测笔尖12b书写时受到的压力，以实时获知该笔尖12b对终端设备的触控屏的书写压力。
进一步地，第三柱体125设置有贯通至第一柱体123的滑动孔125b，该滑动孔125b中可设置有第一弹性部件125c以及第一滑块125d，第一弹性部件125c的一端抵接于该滑动孔125b的内壁面，第一弹性部件125c的另一端抵接于第一滑块125d。第一弹性部件125c可为弹簧，其可用于提供弹性作用力以推动该第一滑块125d相对滑动孔125b运动。具体地，在笔尖12b书写时的受到压力较大时，由于第一支柱12c与第二支柱12d螺旋连接，第一支柱12c可相对第二支柱12d螺旋向上运动(该向上运动的方向为沿着笔身11远离笔头11b的一端的方向，如图9、图10所示的箭头方向X1)，从而使得第一支柱12c可挤压该第一弹性部件125c，进而使得该第一弹性部件125c提供弹性挤压力推动第一滑块125d沿滑动孔125b向上运动，从而第一滑块125d可滑动至与压力传感器125a抵接，进而将该笔尖12b受到的压力传递至压力传感器125a。采用第一弹性部件125c以及压力传感器125a的设置，能够在笔尖12b受到的压力较大时提供缓冲作用力使得笔尖12b沿着笔身11内部回缩，从而避免因笔尖12b受到的压力太大而导致笔尖12b磨损以及划伤触摸屏的情况。
请一并参阅图6、图7以及图11，一些实施例中，触控笔10还包括支撑架15，该支撑架15设置在笔身11中并用于固定笔芯12、屏蔽件13a以及接收电极13b于笔身11中，该电路板11a可设置在支撑架15上。具体地，该支撑架15可采用绝缘架体，从而在固定笔芯12、屏蔽件13a以及接收电极13b时，还可与笔芯12、屏蔽件13a以及接收电极13b保持绝缘。
进一步地，该支撑架15可为中空的柱体，其内部中空，从而支撑架15可套设并连接在笔芯12的外周。具体地，该支撑架15可包括沿着笔身11的轴向方向X依次连接的第一支架部15a、第二支架部15b和第三支架部15c，第一支架部15a可为长条柱体，即，第一支架部15a的轴向方向的长度大于第一支架部15a的径向方向的长度，第一支架部15a的轴向方向与笔身11的轴向方向X一致。第一支架部15a可具有第一定位槽150，第一支架部15a套设在笔芯12的第二支柱12d的外周，即，笔芯12的第二支柱12d可位于该第一定位槽150中。更具体地，为了有效限定笔芯12在沿着笔身11的轴向方向X上的位置，即，限定第二支柱12d在第一定位槽150沿笔身11的轴向方向X上的运动位置，第一定位槽150的槽壁面可设置有凸块150a，该凸块150a可大致对应于该第二支柱12d的第一柱体123设置，从而在笔尖12b书写的压力较大使得笔尖12b带动第一支柱12c、第二支柱12d沿着笔身11的轴向方向X向远离笔头11b的一端(为了便于描述，称该方向为向上运动，如图11的向上箭头X1所示)运动时，由于第二支柱12d的第一柱体123的一端上设置凸台123a，该凸台123a可用于在第二支柱12d向上运动时与凸块150a抵接，以限制第二支柱12d向上运动的运动量，从而限定笔尖12b缩回笔身11的缩回量。而当需要重新书写时，笔尖12b可带动第一支柱12c、第二支柱12d沿着笔身11的轴向方向X向朝向笔头11b的一端(为了便于描述，称该方向为向下运动，如图11的向下箭头X2所示)运动时，由于第二支柱12d的第一柱体123的另一端设置有第二柱体124，该第二柱体124的外径大于第一柱体123的外径，从而该第二柱体124可用于在第二支柱12d向下运动时与凸块150a抵接，以限制第二支柱12d向下运动的运动量，从而限定笔尖12b回复至笔头11b的回复量，使得笔尖12b能够重新实现书写。
可选地，第二支架部15b为柱状体，第二支架部15b可套设在屏蔽件13a的外周。具体地，第二支架部15b可设有与第一定位槽150连通的第二定位槽151，屏蔽件13a可至少部分位于该第二定位 槽151中。
可选地，第三支架部15c同样为柱状体，第三支架部15c的外径小于该第二支架部15b的外径，该第三支架部15c可同样套设在屏蔽件13a的外周，并且，第三支架部15c位于接收电极13b的内部，即，第三支架部15c位于该屏蔽件13a的外周和接收电极13b的内壁面之间。具体地，在屏蔽件13a的对应于第三支架部15c的远离第二支架部15b的一端上设置有第一台阶130，该第一台阶130的台阶面抵接于该第三支架部15c的远离第二支架部15b的一端端面，从而利用第一台阶130的抵接作用，能够防止第三支架部15c自屏蔽件13a上掉落。
进一步地，在第三支架部15c的远离第二支架部15b的一端的外周可凸出设有第二台阶152，该第二台阶152抵接于接收电极13b的内壁面，从而，利用第二台阶152的抵接作用，可以限定第三支架部15c沿接收电极13b的径向方向上的位置。
结合图6、图11所示，一些实施例中，该支撑架15还包括第四支架部15d，该第四支架部15d设置在第一支架部15a的背离第二支架部15b的一端，第四支架部15d呈竖直板状结构，第四支架部15d沿着笔身11的轴向方向X(参见图4所示)延伸，该第四支架部15d可用于固定电路板11a，从而一方面可实现电路板11a在笔身11中的固定，另一方面，由于第四支架部15d设置在第一支架部15a上，从而可以便于第一电极12a、屏蔽件13a、接收电极13b与电路板11a的电连接。
请参见图7、图9、图10、图11所示，一些实施例中，该触控笔10还包括第二弹性部件16，第二弹性部件16可设置在支撑架15内部，且第二弹性部件16可套设在第一支柱12c的外周，并且压紧在支撑架15和第二支柱12d的第一柱体123之间。具体地，第二弹性部件16可设置在第一支架部15a的第一定位槽150中，且该第一定位槽150中形成有第一台阶面150b，第一台阶面150b与上述的凸块150a间隔设置，第二弹性部件16的一端抵接在第一台阶面150b上，第二弹性部件16的另一端抵接在凸台123a背离第一柱体123的一端端面上，从而第二弹性部件16压紧在第一台阶面150b和凸台123a背离第一柱体123的一端端面之间。由于第二弹性部件16处于被压紧状态，第二弹性部件16具有向上拉伸(即如图11中的向上箭头方向X1所示方向)的运动趋势，从而第二弹性部件16可推动第二支柱12d向上抵顶直至第二支柱12d抵顶于压力传感器125a，从而有效固定第二支柱12d，这样，第二支柱12d、第一支柱12c以及笔尖12b均被固定，受压力传感器125a作用，第二支柱12d无法继续向上运动，从而笔尖12b即便在受到书写压力的作用也无法产生后退行程(即防止笔尖12b沿着笔身11向背离笔头11b的方向运动)。换言之，该第二弹性部件16可用于提供初始预压力，以固定笔尖12b，防止笔尖12b产生后退行程，进而可以防止由于笔尖12b后退而导致影响书写体验的情况。
请参见图7、图9以及图10所示，进一步地，该触控笔10还包括第三弹性部件17，且第三弹性部件17与第三柱体125连接，该第三弹性部件17用于电连接至电路板11a，以实现该第一电极12a与电路板11a的电连接。具体地，该第三弹性部件17可为导电弹簧，且该第三弹性部件17具有套设部170和连接部171，该套设部170为环状，其套设在第三柱体125的外周，连接部171的一端与套设部170连接，另一端沿着笔杆11c的长度方向向着电路板11a所在方向延伸至与电路板11a电连接。利用第三弹性部件17实现第一电极12a与电路板11a的电连接的方式，电连接方式简单，且由于第三弹性部件17的套设部170套设在第三柱体125的外周，从而可提高第三弹性部件17与第三柱体125的连接稳定性，进而可提高第一电极12a与电路板11a的电连接可靠性。
请一并参阅图7、图8以及图12，一些实施例中，该触控笔10还包括开关元件14，电路板11a上设有供电端111以及接地端112，在第一电极12a向终端设备发送第一信号时，接收电极13b和/或屏蔽件13a通过开关元件14连接于接地端112，而在终端设备发送第二信号时，接收电极13b和/或屏蔽件13a通过开关元件14连接于供电端。采用接收电极13b和/或屏蔽件13a通过开关元件14连接于接地端112或者是供电端111的方式，能够便于接收电极13b、屏蔽件13a与电路板11a的接地连接以及导电连接。
可选地，在第一电极12a向终端设备发送第一信号时，该接收电极13b可通过开关元件14连接于接地端112，或者，屏蔽件13a可通过开关元件14连接于接地端112，或者，接收电极13b以及屏蔽件13a都可通过开关元件14连接于接地端112，以实现该屏蔽件13a、接收电极13b与电路板11a的接地连接。
相应的，在在终端设备发送第二信号时，接收电极13b可通过开关元件14连接于供电端，或者，屏蔽件13a可通过开关元件14连接于供电端，或者，接收电极13b和屏蔽件13a均可通过开关元件14连接于供电端，以实现接收电极13b、屏蔽件13a与电路板11a的导电连接。
可选地，该开关元件14可包括但不局限于继电器(例如时间继电器)、模拟开关等。
请参阅图13所示，图13是该触控笔10的在靠近笔头位置的内部结构剖视图，该屏蔽件13a、接收电3极13b可完全设置在笔身11中，或者，该屏蔽件13a和/或接收电极13b可部分设置在笔身11中，然后在屏蔽件13a和/或接收电极13b上设置额外的部件延伸至笔身11外部。例如，可在屏蔽件13a和/或接收电极13b的外周可凸设有导电环13c，该导电环13c可至少部分外露于该笔身11外部。即，可在屏蔽件13a的外周凸设导电环13c，或者，可在接收电极13b的外周凸设导电环13c，或者，可同时在屏蔽件13a和接收电极13b的外周凸设导电环13c。
采用在屏蔽件13a和/或接收电极13b的外周凸设导电环13c，且该导电环13c至少部分外露于笔身11外部的方式，在减少导电环13c对笔身11内部空间的占用的基础上，利用该导电环13c能够增加屏蔽件13a或接收电极13b的面积，从而能够提高屏蔽件13a或接收电极13b的信号接收能力。同时，该导电环13c的设置，在触控笔10应用于终端设备的触控屏时，能够增加该屏蔽件13a和/或接收电极13b的沿垂直于触控屏方向上的投影面积，从而可以增强该触控笔10在垂直于或接近垂直于触控屏的使用场景下的信号接收能力。
此外，由于该导电环13c至少部分外露于笔身11外部，且该导电环13c设置在屏蔽件13a和/或接收电极13b的靠近笔头11b的部分，从而该导电环13c距离笔头11b的位置比较近，进而使得该导电环13c距离与触控笔10配合的终端设备的触控屏比较近，同时且由于该导电环13c外露在笔身11外部，无需受到笔头11b的遮挡，使得该屏蔽件13a和/或接收电极13b的信号接收能力更强。
以该导电环13c设置在屏蔽件13a的外周为例进行说明。
如图13所示，可选地，该导电环13c可包括第一部分132和第二部分133，第一部分132可环设在屏蔽件13a的外周，且该第一部分132绕屏蔽件13a的一周设置，该第二部分133连接于第一部分132，同时，该第二部分133通过注塑成型的方式与该笔身11成型为一体，从而不仅可达到固定该屏蔽件13a的目的，而且可简化该导电环13c的加工。
进一步地，该导电环13c可采用例如金属铜、铜合金、铝或铝合金等导电材料制成，以具有良好的导电能力。
请一并参阅图14至图15，一些实施例中，由前述可知，屏蔽件13a呈环状，其套设在笔芯12的外周并且与笔芯12的第一电极12a间隔设置，从而屏蔽件13a与第一电极12a未接触，可以避免屏蔽件13a与第一电极12a接触导致第一电极12a和屏蔽件13a电连接导致该触控笔10的电路发生短路的情况。
相应地，接收电极13b同样呈环状，该接收电极13b可与屏蔽件13a间隔设置，然后再通过导电件13d实现接收电极13b和屏蔽件13a的电连接，或者，在接收电极13b套设在屏蔽件13a的外周时，接收电极13b可与屏蔽件13a接触式连接，以实现接收电极13b与屏蔽件13a的电连接。这样，接收电极13b与屏蔽件13a的电连接方式有多种，可以根据实际情况选择，例如可根据触控笔10的结构进行电连接方式选择，有利于提高该触控笔10的适用性。
以下将针对接收电极13b与屏蔽件13a的电连接方式分别示例说明。
一种可选的实施方式中，该接收电极13b与屏蔽件13a接触式连接以实现接收电极13b与屏蔽件 13a的电连接。当接收电极13b与屏蔽件13a接触式连接时，由于接收电极13b套设在屏蔽件13a的外周，该接收电极13b的至少部分内壁面与屏蔽件13a的至少部分外壁面抵接，以实现接收电极13b与屏蔽件13a的电连接。或者，该接收电极13b和/或屏蔽件13a可设有台阶部，该接收电极13b和屏蔽件13a可通过该台阶部接触连接，以实现接收电极13b与屏蔽件13a的电连接。
如图14、图15所示，在接收电极13b与屏蔽件13a接触式连接的一种示例中，该接收电极13b的至少部分内壁面1310与屏蔽件13a的至少部分外周面134抵接，此时，该接收电极13b的至少部分内径与屏蔽件13a的外径可大致相等。具体地，该接收电极13b可呈锥形环状，其包括相对的第一端131a和第二端131b，第二端131b可为朝向笔身11的笔头11b所在的一端，该接收电极13b的直径自第一端131a向第二端131b逐渐减小，且该第二端131b的内径大致与屏蔽件13a的外径相等，从而第二端131b的内壁面1310可与屏蔽件13a的外周面134接触，以实现二者的接触式电连接。采用接收电极13b的第二端131b内壁面1310与屏蔽件13a的外周面134接触以实现电连接的方式，电连接方式简单且可靠，有利于确保接收电极13b与屏蔽件13a的电连接可靠性。
请参阅图16，在接收电极13b与屏蔽件13a接触式连接的另一种示例中，接收电极13b和/或屏蔽件13a设有台阶部13e，接收电极13b和屏蔽件13a可通过台阶部13e接触连接。即，接收电极13b可设有台阶部13e，接收电极13b上的台阶部13e与屏蔽件13a接触连接，或者，屏蔽件13a可设有台阶部13e，屏蔽件13a上的台阶部13e与接收电极13b接触连接。或者，屏蔽件13a、接收电极13b都可设有台阶部13e，屏蔽件13a上的台阶部13e与接收电极13b上的台阶部13e接触连接。
本实施例以屏蔽件13a设有该台阶部13e为例进行说明。
如图16所示，该接收电极13b为锥形环状，该接收电极13b包括相对的第一端131a和第二端131b，第二端131b可为朝向笔身11的笔头11b所在的一端，该接收电极13b的直径自第一端131a向第二端131b逐渐减小。该屏蔽件13a的外周面设置有台阶部13e，该台阶部13e可环绕屏蔽件13a的外周设置，且该台阶部13e可抵接在接收电极13b的第二端131b的端面，从而一方面利用台阶部13e可将屏蔽件13a和接收电极13b接触连接，实现二者的接触式电连接，另一方面，利用台阶部13e可用于承载该接收电极13b，从而可以限制接收电极13b在沿着笔身11的轴向方向X上的位置，防止接收电极13b自屏蔽件13a上脱离。
此外，由于在屏蔽件13a的外周设置了该台阶部13e，利用该台阶部13e可增加屏蔽件13a在沿垂直于终端设备的触控屏上的投影面积，从而可增强该触控笔10在垂直于或者是接近垂直于触控屏的使用场景下的屏蔽件13a的信号接收能力，进而能够提升该触控笔10的整体信号接收能力。
可选地，该台阶部13e可环绕该屏蔽件13a的一周设置，从而可以增加台阶部13e与接收电极13b的接触面积，提高二者的接触可靠性。可以理解的是，在其他实施例中，台阶部13e也可环绕该屏蔽件13a的四分之一周、半周或者是四分之三周设置，只要在屏蔽件13a的外周设置该台阶部13e即可，本实施例对此不作具体限定。
请参阅图17至图20，另一种可选地实施方式中，接收电极13b与屏蔽件13a通过导电件13d连接。具体地，当接收电极13b和屏蔽件13a通过导电件13d连接时，该导电件13d可连接于接收电极13b和屏蔽件13a中的一个。例如，该导电件13d可连接于屏蔽件13a，或者，导电件13d可连接于接收电极13b。接收电极13b与屏蔽件13a通过导电件13d实现电连接的方式，从而接收电极13b与屏蔽件13a无需接触，而是通过导电件13d实现电连接的方式，电连接方式更加灵活。
可选地，该导电件13d可包括导电轴承、导电弹簧或柔性电路板11a中的至少一种。例如，该导电件13d可包括导电弹簧，该导电弹簧连接在屏蔽件13a和接收电极13b之间。采用导电弹簧的方式，由于导电弹簧具有一定的预压作用，导电弹簧在连接于屏蔽件13a和接收电极13b之间时，能够使得屏蔽件13a和接收电极13b始终与导电弹簧保持接触，提高屏蔽件13a与接收电极13b导电连接的可靠性。
一些实施例中，导电件13d包括第一接电部131c和第二接电部131d，第一接电部131c连接于屏蔽件13a和接收电极13b中的一个，第二接电部131d连接于屏蔽件13a和接收电极13b中的另一个，该第一接电部131c和/或第二接电部131d还连接于电路板11a。这样，可实现屏蔽件13a与接收电极13b二者的电连接的同时，还可实现屏蔽件13a、接收电极13b与电路板11a的电连接。
示例性的，第一接电部131c连接于屏蔽件13a，第二接电部131d连接于接收电极13b，且第一接电部131c连接于电路板11a，或者，第二接电部131d连接于电路板11a，或者，第一接电部131c以及第二接电部131d均连接于电路板11a。
本实施例以第二接电部131d连接于电路板11a为例。
可选地，第一接电部131c连接于屏蔽件13a时，其可抵接在屏蔽件13a上，或者，该第一接电部131c可环设在屏蔽件13a上。第二接电部131d连接于接收电极13b时，其可抵接在接收电极13b上，或者，该第二接电部131d可环设在接收电极13b上。
一种可选的实施方式中，该第一接电部131c可环设在屏蔽件13a上。具体地，该第一接电部131c可具有第一环状部分(未图示)，该第一环状部分可套设并连接于屏蔽件13a，从而可以提高该导电件13d与屏蔽件13a的连接可靠性。
如图18、图19、20所示，另一种可选地实施方式中，该第一接电部131c可抵接在屏蔽件13a上。具体地，该第一接电部131c可包括抵接部137和第一环状部分136，该抵接部137可抵接在屏蔽件13a的外周且位于第二支架部15b的第二定位槽151内部。第一环状部分136连接于该抵接部137。由前述可知，第二支架部15b套设在屏蔽件13a的外周，因此，为了能够对导电件13d进行避空以及实现导电件13d与接电件13b的连接，在第二支架部15b上设置有第一避空孔153和第一绕设孔154，该第一避空孔153在第二支架部15b上的设置位置与抵接部137对应设置，且该第一避空孔153沿着第二支架部15b的径向方向贯通，第一绕设孔154沿着第二支架部15b的外周环绕设置。该第一避空孔153可以提供避位空间供该抵接部137设置，同时，第一环状部分136可沿着第一避空孔153伸出至第一避空孔153的外部，从而第一环状部分136可沿着第一绕设孔154环绕该第二支架部15b的外周设置。采用在第二支架部15b的外周设置第一绕设孔154，使得第一环状部分136可环绕在第一绕设孔154中，从而第一绕设孔154能够对第一环状部分136起到导向和限位作用，确保导电件13d始终与第二支架部15b连接。
此外，由前述可知，导电件13d可为导电弹簧，该抵接部137抵接在屏蔽件13a的外周且位于该第二支架部15b的第二定位槽151内部，从而利用第二定位槽151的内壁面对抵接部137的抵接作用，使得抵接部137能够始终牢牢地抵接在屏蔽件13a的外周面，从而提高导电件13d与屏蔽件13a的电连接可靠性。
一种可选的实施方式中，该第二接电部131d可环设在接收电极13b上。具体地，该第二接电部131d具有第二环状部分138，该第二环状部分138套设并连接于该接收电极13b的外周。采用第二接电部131d具有第二环状部分138的方式，能够增加第二接电部131d与接收电极13b的连接面积以及连接可靠性。
进一步地，由于第二接电部131d还连接于电路板11a，因此，该第一接电部131c还可连接于第二接电部131d，以实现屏蔽件13a和接收电极13b的电连接。具体地，该第一接电部131c的第一环状部分136可沿着第一绕设孔154延伸至与第二接电部131d连接。
参见图17、图18和图20所示，进一步地，该第二接电部131d还包括延伸部139，该延伸部139与第二环状部分138连接，且该延伸部139可沿着笔身11的轴向方向X延伸至与电路板11a连接，且该延伸部139与第一环状部分136连接在一起，从而实现通过第二接电部131d连接第一接电部131c以及电路板11a的目的。具体地，该延伸部139与第一环状部分136连接在一起的方式可包括：延伸部139与第一环状部分136焊接，或者，延伸部139与第一环状部分136直接接触。例如，第一环状 部分136的靠近延伸部139的位置可形成为卡勾状，该延伸部139可勾设于该卡勾，从而可防止延伸部139与第一环状部分136脱离，使得延伸部139始终与第一环状部分136连接，进而使得第一接电部131c与第二接电部131d始终保持电连接。
由前述可知，由于电路板11a设置在第四支架部15d上，且该第四支架部15d设置在第一支架部15a远离第二支架部15b的一端，因此，为了延伸部139能够延伸至与电路板11a连接，在第二支架部15b的外周还可设置有沿第二支架部15b的轴向方向延伸的第二避空孔155，且该第二避空孔155自第二支架部15b沿着笔身11的轴向方向X延伸至第一支架部15a上，从而该延伸部139可在第二避空孔155中延伸至第四支架部15d所在位置与电路板11a连接。采用该第二避空孔155的设置，能够实现对延伸部139的定位和限位，同时也可以减少延伸部139对笔身11内部空间的占用。
结合图21和图22所示，该触控笔10还包括承载支架18，该承载支架18设置在笔身11中，且承载支架18位于笔身11的背离笔头11b的一端，用于进一步支撑固定电路板11a。具体地，该承载支架18连接于该支撑架15的第四支架部15d，从而承载支架18与第四支架部15d共同形成用于固定该电路板11a的结构，从而能够有效固定电路板11a，防止电路板11a在笔身11中发生移位，确保电路板11a与其他部件(例如第一电极12a、第二接电部131d)的连接可靠性。
可选地，承载支架18的一端可拆卸连接于该第四支架部15d，承载支架18的另一端可沿着笔身11的轴向方向X延伸。具体地，该承载支架18的一端可通过卡扣扣合的方式连接于该第四支架部15d，从而便于承载支架18与第四支架部15d的拆装。例如，在承载支架18的一端可设置有第一卡合部18a，在第四支架部15d的与承载支架18的连接的位置设置有第二卡合部156，第二卡合部156与第一卡合部18a卡合连接。示例性的，该第一卡合部18a可为凸起或凹陷，第二卡合部156可为凹陷或凸起。
进一步地，触控笔10还包括电池19，该承载支架18的另一端可弯折形成电池容置槽19a，该电池容置槽19a可用于容置电池19，从而实现电池19在笔身11中的固定的同时，还便于电池19与电路板11a的电连接。
一些实施例中，该触控笔10还包括盖体19b，该盖体19b盖合连接于承载支架18，以压合该电路板11a于承载支架18上，达到进一步固定电路板11a的效果。可选地，该盖体19b可拆卸连接于该承载支架18，具体可为，在盖体19b上设置有第三卡合部190，承载支架18上对应该第三卡合部190的位置设置有第四卡合部18c，第三卡合部190和第四卡合部18c卡合连接，以实现盖体19b与承载支架18的配合。示例性的，第三卡合部190可为卡勾或卡槽，第四卡合部18c可为卡槽或卡勾。
本申请第一方面的实施例公开的触控笔10，通过将屏蔽件13a与接收电极13b电连接。当将触控笔10应用于终端设备的触控屏，尤其是折叠屏时，在终端设备发射第二信号与触控笔10配对(即上行阶段)时，由于屏蔽件13a与接收电极13b电连接，则此时屏蔽件13a和接收电极13b处于同一直流电位，屏蔽件13a和接收电极13b可同时作为接收电极，从而可以增大触控笔10对终端设备的接收面积，提升触控笔10的接收能力。而当触控笔10向终端设备发射第一信号(即下行阶段)时，屏蔽件13a和接收电极13b可同时作为隔离电极，防止第一信号的发散，使得终端设备能够接收到该第一信号。
请一并参阅图23和图24，本申请实施例第二方面还公开了一种触控笔系统20，该触控笔系统20包括终端设备21以及如上述第一方面所述的触控笔10，该终端设备21可包括触控屏21a，该触控笔10可在终端设备21的触控屏21a上进行书写。
可以理解的是，该终端设备21可包括但不局限于平板电脑、手机、笔记本电脑等。该终端设备21的触控屏21a可为柔性屏，例如可为折叠屏、卷轴屏、鹅卵石屏、四曲面屏等，从而采用本实施例的触控笔10的方案，由于屏蔽件13a与接收电极13b电连接，利用屏蔽件13a和接收电极13b在折叠屏向触控笔10发送第二信号时，能够同时作为接收电极，从而可以有效缓解折叠屏因TP层距离显示面板层更近而导致对触控干扰、负载以及衰减大，导致触控笔10与终端设备21的交互能力弱的问题。 当然，在其他实施例中，该触控屏21a也可包括非折叠屏。
请参见图7、图8以及图25，第三方面，本申请实施例还公开了一种触控笔10与终端设备21的控制方法，该触控笔10可为上述第一方面所述的触控笔10，即，该触控笔10包括有上述的第一电极12a、屏蔽件13a和接收电极13b。该控制方法包括：
31、在第一电极向终端设备发送第一信号时，通过屏蔽件以及接收电极阻碍第一信号发散。
在此步骤中，该屏蔽件13a、接收电极13b可作为隔离电极，从而可阻碍第一信号发散。当然，对于该第一信号的类型，屏蔽件13a的设置方式等，可参见第一方面所述的内容，此处不再赘述。
32、通过屏蔽件和接收电极接收终端设备发送的第二信号。
在此步骤中，屏蔽件13a和接收电极13b可作为接收电极，从而可接收该终端设备21发送的第二信号。
可以理解的是，步骤32和步骤31之间未存在步骤先后顺序，只要能够实现屏蔽件13a和接收电极13b在第一电极12a向终端设备21发送第一信号时处于第一电位，以阻碍第一信号的发散，以及在终端设备21向触控笔10发送第二信号时处于第二电位接收该第二信号即可。
此外，对于屏蔽件13a、接收电极13b处于第一电位、第二电位的实现方式，以及对于该第二信号的类型，屏蔽件13a、接收电极13b的设置方式等，可参见第一方面所述的内容，此处不再赘述。
以上对本申请实施例公开的触控笔、触控笔系统及触控笔的控制方法进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的触控笔、触控笔系统及触控笔的控制方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本申请的限制。

Claims (21)

  1. 一种触控笔，所述触控笔应用于终端设备，所述触控笔包括：
    笔身，所述笔身中设有电路板；
    笔芯，所述笔芯至少部分设于所述笔身中，所述笔芯具有第一电极，所述第一电极电连接于所述电路板，用于向所述终端设备发送第一信号；以及
    接收电极和屏蔽件，所述接收电极和所述屏蔽件在所述第一电极向所述终端设备发送第一信号时处于第一电位，所述接收电极和所述屏蔽件在所述终端设备发送第二信号时处于第二电位以接收所述第二信号。
  2. 根据权利要求1所述的触控笔，其中，所述接收电极与所述屏蔽件电性连接。
  3. 根据权利要求1所述的触控笔，其中，所述触控笔还包括开关元件，所述电路板上设有供电端以及接地端，在所述第一电极向所述终端设备发送第一信号时，所述接收电极和/或所述屏蔽件通过所述开关元件连接于所述接地端；在所述终端设备发送第二信号时，所述接收电极和/或所述屏蔽件通过所述开关元件连接于所述供电端。
  4. 如权利要求1所述的触控笔，其中，所述屏蔽件呈环状，所述屏蔽件套设在所述笔芯外周。
  5. 如权利要求4所述的触控笔，其中，所述接收电极呈环状，所述接收电极套设在所述屏蔽件外周。
  6. 如权利要求5所述的触控笔，其中，所述屏蔽件沿所述笔身的轴向的长度大于所述接收电极沿所述笔身的轴向的长度。
  7. 根据权利要求1所述的触控笔，其中，所述接收电极和/或所述屏蔽件的外周凸设有导电环，所述导电环至少部分外露于所述笔身外部。
  8. 如权利要求1-7任一项所述的触控笔，其中，所述接收电极与所述屏蔽件接触式连接。
  9. 根据权利要求8所述的触控笔，其中，所述接收电极套设于所述屏蔽件的外周，所述接收电极的至少部分内壁面与所述屏蔽件的至少部分外壁面抵接，或者，所述接收电极和/或所述屏蔽件设有台阶部，所述接收电极和所述屏蔽件通过所述台阶部接触连接。
  10. 如权利要求1-7任一项所述的触控笔，其中，所述接收电极与所述屏蔽件通过导电件连接。
  11. 根据权利要求10所述的触控笔，其中，所述导电件包括导电轴承、导电弹簧或柔性电路板中的至少一种。
  12. 根据权利要求10所述的触控笔，其中，所述导电件包括第一接电部和第二接电部，所述第一接电部连接于所述屏蔽件和所述接收电极中的一个，所述第二接电部连接于所述屏蔽件和所述接收电极中的另一个，所述第一接电部和/或所述第二接电部还连接于所述电路板。
  13. 根据权利要求12所述的触控笔，其中，所述第一接电部具有第一环状部分，所述第一环状部分套设并连接于所述屏蔽件和所述接收电极中的一个。
  14. 根据权利要求12所述的触控笔，其中，所述第二接电部具有第二环状部分，所述第二环状部分套设并连接于所述屏蔽件和所述接收电极中的另一个。
  15. 根据权利要求12所述的触控笔，其中，所述触控笔还包括支撑架，所述支撑架设置在所述笔身中并用于固定所述笔芯、所述屏蔽件以及所述接收电极于所述笔身中，所述电路板设置在所述支撑架上。
  16. 根据权利要求15所述的触控笔，其中，所述接收电极与所述屏蔽件间隔设置；
    所述支撑架包括依次连接的第一支架部、第二支架部以及第三支架部，第一支架部具有第一定位槽，所述笔芯至少部分位于所述第一定位槽中，所述第二支架部具有与所述第一定位槽连通的第二定位槽，所述屏蔽件至少部分位于所述第二定位槽中，所述第三支架部套设在所述第二电极的外周并位于所述接收电极与所述屏蔽件之间。
  17. 根据权利要求16所述的触控笔，其中，所述第二支架部设有沿其自身径向延伸的第一避空孔以及绕所述第二支架部的外周设置的第一绕设孔，所述第一绕设孔与所述第一避空孔连通；
    所述第一接电部包括抵接部和第一环状部分，所述抵接部抵接于所述屏蔽件的外周与所述第二支架部 之间，所述第一环状部分自所述第一避空孔延伸至所述第一绕设孔中以绕设在所述第二支架部的外周。
  18. 根据权利要求16所述的触控笔，其中，所述第二支架部设有沿其自身轴向方向延伸的第二避空孔；
    所述第二接电部包括第二环状部分和与所述第二环状部分连接的延伸部，所述第二环状部分套设并连接在所述接收电极的外周，所述延伸部沿着所述第二避空孔向所述电路板所在方向延伸至与所述电路板连接。
  19. 一种触控笔系统，其中，所述触控笔系统包括终端设备和如权利要求1至18任一项所述的触控笔，所述终端设备包括触控屏，所述触控笔用于在所述触控屏上进行书写。
  20. 根据权利要求19所述的触控笔系统，其中，所述触控屏为折叠屏、卷轴屏、鹅卵石屏、四曲面屏中的一种。
  21. 一种触控笔的控制方法，其中，应用于权利要求1-18任一项所述的触控笔，所述方法包括：
    在所述第一电极向所述终端设备发送第一信号时，通过所述屏蔽件以及所述接收电极阻碍所述第一信号发散；
    通过所述屏蔽件以及所述接收电极接收所述终端设备发送的第二信号。
PCT/CN2022/081958 2021-04-23 2022-03-21 触控笔、触控笔系统及触控笔的控制方法 WO2022222662A1 (zh)

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