Pen tail module, stylus, touch system and control method of stylus

Abstract

The embodiment of the invention discloses a pen tail module, a touch pen, a touch system and a control method of the touch pen. A pen cap of the pen tail module is used for being fixedly connected with a pen holder and has elasticity, a first electrode and a second electrode of the pen tail module are arranged on the pen cap at intervals, and the two electrodes and the pen cap form a pen cap assembly; wherein the first electrode is used for being coupled with a contact object to generate an identification signal, when the contact object is a first contact object, the identification signal is a first identification signal used for executing a first function, and when the contact object is a second contact object, the identification signal is a second identification signal used for executing a second function; wherein the first contact object and the second contact object are made of different materials, and the first identification signal and the second identification signal are different; the second electrode is used for emitting a coding signal. By means of the arrangement, the pen tail module can achieve the key function and the eraser function at the same time, the function needing to be executed currently is confirmed based on the contact object close to the pen cap, and the influence caused by tail shaking can be effectively avoided.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of touch sensing technology, and more particularly to a pen tail module, a stylus, a touch system, and a control method for the stylus. Background Art

[0002] A stylus pen is an electronic product that inputs information into an electronic device through a touch screen, such as but not limited to a mobile phone or tablet computer, so as to more conveniently and accurately write and draw on the mobile phone or tablet computer. In order to improve the user experience, in addition to inputting information into the wireless terminal through the pen tip, a button function and an eraser function will be added to the end of the stylus pen.

[0003] A typical stylus has a physical button at the end of the pen, and the erase function is realized by the end of the physical button contacting the touch screen. However, the physical button obtains the pressing stroke based on a spring or spring structure, and its end is in a floating state. When the eraser function is performed through the end, the end of the pen can be clearly felt to shake, which affects the user experience. Summary of the invention

[0004] The embodiments of the present application provide a pen tail module, a stylus, a touch control system and a control method for the stylus, which can avoid tail shaking during operation based on the integrated realization of key functions and eraser functions.

[0005] A first aspect of an embodiment of the present application provides a pen tail module for adapting to a pen holder of a stylus pen, the pen tail module comprising a pen cap, a first electrode, and a second electrode; the pen cap is used to be fixedly connected to the pen holder and is elastic, the first electrode and the second electrode are spaced apart on the pen cap, and the first electrode, the second electrode and the pen cap form a pen cap assembly; wherein the first electrode is used to couple with a contact object to generate an identification signal, when the contact object is a first contact object, the identification signal is a first identification signal for executing a first function, and when the contact object is a second contact object, the identification signal is a second identification signal for executing a second function; wherein the first contact object and the second contact object are made of different materials, and the first identification signal is different from the second identification signal; the second electrode is used to emit a coding signal.

[0006] With such a configuration, different identification signals can be coupled to the first electrode based on contact objects of different materials. When the contact object is the first contact object, the identification signal is the first identification signal for executing the key function. When the contact object is the second contact object, the identification signal is the second identification signal for executing the eraser function. Taking the first function as the key function and the second function as the eraser function as an example, the pen tail module can realize the key function and the eraser function at the same time, and confirm the function that needs to be executed currently based on the contact object close to the pen cap.

[0007] In addition, based on the deformation ability provided by the elastic pen cap, when the user executes the key function, the deformation energy stored by the compression deformation is released through the pen cap, and the pen cap drives the electrode to reset based on the restored shape; when the user presses the pen cap against the touch screen to perform the erasing operation, on the one hand, when the force of the erasing operation changes, a tactile feedback similar to that of a traditional eraser can be obtained, forming a pressure-sensitive eraser, which can completely avoid the shaking feeling of the traditional physical key to perform the erasing function. In this way, the pen tail module can effectively avoid the possibility of tail shaking during the erasing operation while having both the key function and the eraser function.

[0008] In addition, when the user presses the pen cap against the touch screen to perform an erasing operation, the deformation can be restored as the pressing force decreases. During the erasing operation, the pen cap can always maintain reliable contact with the touch screen so that the electronic device side responds to the user operation and presents a continuous and stable erasing mark, which can improve the overall user experience.

[0009] In addition, based on the structural characteristics of the elastic pen cap, during the key operation, the pen cap does not need to move as a whole relative to the pen barrel, and the connection between the pen cap and the pen barrel can be configured as a glued sealed connection, or a gap-free fit. In this way, when the fingers are sweating or wet, compared with the traditional physical key solution, the application of this application solution can avoid water vapor from entering the internal circuit, ensure operational reliability, and further improve the user experience.

[0010] In practical applications, the pen cap can be made of elastic materials, such as but not limited to rubber or TPU, etc., which can produce moderate deformation and provide restoring force when the user applies pressure, thereby meeting the corresponding operational function requirements.

[0011] Based on the first aspect, the embodiment of the present application further provides a first implementation of the first aspect: the pen tail module also includes a pressure sensor and a pen tail bracket, and the pressure sensor is fixed to the pen tail bracket to detect the pressure applied to the pen tail. In this way, by obtaining the user's operating pressure and implementing the key function or the eraser function according to the operating instruction. The key function and the eraser function share a pressure sensing device, which can save design space and reasonably control costs.

[0012] In practical applications, the pressure sensor can be directly fixed on the pen tail bracket, and can also be indirectly fixed on the pen tail bracket through other components.

[0013] Based on the first implementation of the first aspect, the embodiment of the present application also provides a second implementation of the first aspect: the pressure sensor is integrated on the sensor FPC, and the sensor FPC includes a first end and a second end; the first electrical connection portion of the first electrode and the second electrical connection portion of the second electrode are respectively electrically connected to the electrical connection port of the first end of the sensor FPC; the electrical connection port of the first end and the pressure sensor are respectively connected to the second end through the wire in the sensor FPC substrate, and the electrical connection port of the second end of the sensor FPC is used to be electrically connected to the control unit of the stylus. In this way, the sensor FPC has both the functions of a pressure sensor and a wire, has a high degree of integration, and has good assembly processability.

[0014] Exemplarily, the electrical connection port at the first end can be the surface bright copper on the sensor FPC. Based on the relatively large contact area, the electrical connection parts of the two electrodes can be glued to the corresponding surface bright copper through conductive foam to form a reliable electrical connection, and form an electrical connection path through the wires in the sensor FPC6 substrate.

[0015] In other exemplary embodiments, the electrical connection port at the first end may also be a solder pad on the sensor FPC.

[0016] Based on the second implementation of the first aspect, the embodiment of the present application also provides a third implementation of the first aspect: the pen tail module also includes a support member and a deformation bearing sheet, the deformation bearing sheet is fixed on the pen tail bracket, and the pressure sensor is located on the deformation bearing sheet; the support member is located between the pen cap assembly and the deformation bearing sheet, and the support member is respectively in contact with the pen cap assembly and the deformation bearing sheet to transfer pressure to the deformation bearing sheet. In this way, the force applied to the pen tail can be transmitted to the deformation bearing sheet through the pen cap, the electrode assembly and the support member in sequence, and the pressure sensor located thereon can obtain the user's operating pressure, thereby realizing the key function or eraser function according to the operating instruction.

[0017] In actual application, one of the pen cap assembly and the support is provided with a force transmission protrusion, and the other is provided with a force transmission recess. The force transmission protrusion can be partially inserted into the force transmission recess and abut against the force transmission recess.

[0018] Based on the third implementation of the first aspect, the embodiment of the present application further provides a fourth implementation of the first aspect: the force transmission protrusion is arranged on the pen cap assembly, and the first electrical connection portion of the first electrode and the second electrical connection portion of the second electrode are respectively located on both sides of the force transmission protrusion. Based on good physical insulation, the electrical performance of the first electrode and the second electrode is improved.

[0019] Based on the third implementation of the first aspect, or the fourth implementation of the first aspect, the embodiment of the present application also provides a fifth implementation of the first aspect: the two ends of the deformation bearing sheet include mounting portions bent toward the pen tail bracket, and the pen tail bracket has a corresponding slot, and the mounting portion of the deformation bearing sheet is inserted and fixed in the slot of the pen tail bracket. In this way, the plug-in adapted mounting portion and slot can provide assembly positioning, and then be welded or glued and fixed. On the one hand, it has better assembly processability and can improve the product assembly accuracy; on the other hand, it increases the fixed contact area between the two, and the fixed relationship is effectively strengthened.

[0020] Based on the third implementation of the first aspect, or the fourth implementation of the first aspect, or the fifth implementation of the first aspect, the embodiment of the present application also provides a sixth implementation of the first aspect: the support member includes a pressing portion abutting against the deformation bearing sheet, the pressing portion is provided with a metal adapter, and the metal adapter includes a pressing surface arranged opposite to the force-bearing surface of the deformation bearing sheet to abut against the deformation bearing sheet. In this way, based on the setting of the metal adapter, the bearing capacity of the support member can be improved, and for the pen tail module integrating the button function and the eraser function, the stable use reliability can be maintained in the scenario with a high operating frequency.

[0021] Exemplarily, the metal adapter and the body of the support member are formed by injection molding, for example but not limited to, the body of the support member can be injection molded by PC material.

[0022] Based on the third implementation of the first aspect, or the fourth implementation of the first aspect, or the fifth implementation of the first aspect, the embodiment of the present application further provides a seventh implementation of the first aspect: the support member and the deformation bearing sheet are integrally processed and formed, which has the characteristics of simple structure and good processability.

[0023] Based on the third implementation of the first aspect, or the fourth implementation of the first aspect, or the fifth implementation of the first aspect, or the sixth implementation of the first aspect, or the seventh implementation of the first aspect, the embodiment of the present application also provides an eighth implementation of the first aspect: the first end of the sensor FPC is bent to the opposite side of the support and the first electrode and the second electrode, and the first electrical connection part of the first electrode and the second electrical connection part of the second electrode are electrically connected to the corresponding surface bright copper on the first end of the sensor FPC through conductive foam. In this way, the sensor FPC is fully utilized to form a reliable electrical connection, and the product integration is high.

[0024] Based on the third implementation of the first aspect, or the fourth implementation of the first aspect, or the fifth implementation of the first aspect, or the sixth implementation of the first aspect, or the seventh implementation of the first aspect, or the eighth implementation of the first aspect, the embodiment of the present application also provides a ninth implementation of the first aspect: the pen tail module also includes a limiter, which can limit the pressing stroke of the pen cap assembly. In this way, when the pressing force of the pen tail gradually increases, the reaction force generated by the limiter ensures that the deformation bearing sheet is not crushed, thereby protecting the working state of the pressure sensor.

[0025] Exemplarily, the limiting part is a fixed limiting baffle, and correspondingly, the support member includes a limiting surface, and in the pressing direction of the pen cap assembly, there is a distance between the limiting surface of the support member and the limiting baffle to limit the pressing stroke of the pen cap assembly. As the pressing force of the pen tail gradually increases, the distance decreases accordingly until the limiting surface of the support member presses against the limiting baffle. The limiting surface presses against the limiting baffle, which can reasonably control the maximum displacement of the deformation bearing sheet and ensure the reliability of the use of the deformation bearing sheet.

[0026] As another example, the pen cap assembly may also include a limiting surface with a limiting baffle, and in the pressing direction of the pen cap assembly, there is a spacing between the limiting surface of the pen cap assembly and the limiting baffle to limit the pressing stroke of the pen cap assembly.

[0027] In addition, exemplarily, the limiting portion is arranged in the middle part of the pen tail bracket, and in the pressing direction of the pen cap assembly, there is a distance between the limiting portion and the deformation bearing sheet to limit the pressing stroke of the pen cap assembly; or, there is a distance between the limiting portion and the pressure sensor on the deformation bearing sheet to limit the pressing stroke of the pen cap assembly.

[0028] Based on the first aspect, or the first embodiment of the first aspect, or the second embodiment of the first aspect, or the third embodiment of the first aspect, or the fourth embodiment of the first aspect, or the fifth embodiment of the first aspect, or the sixth embodiment of the first aspect, or the seventh embodiment of the first aspect, or the eighth embodiment of the first aspect, or the ninth embodiment of the first aspect, the embodiment of the present application also provides a tenth embodiment of the first aspect: the first electrode and the second electrode are mounted on an electrode bracket, and the force transmission protrusion of the pen cap assembly is formed on the electrode bracket.

[0029] In a specific implementation, the body of the first electrode and the body of the second electrode are located on opposite sides of the electrode bracket and the pen cap, and the first electrical connection portion of the first electrode and the second electrical connection portion of the second electrode both extend out of the electrode bracket to establish corresponding electrical connections. The structure is simple and easy to implement.

[0030] For example, the first electrode, the second electrode and the electrode support of the electrode assembly can be formed by injection molding, which can further improve the processability and reasonably control the product precision.

[0031] Based on the first aspect, or the first embodiment of the first aspect, or the second embodiment of the first aspect, or the third embodiment of the first aspect, or the fourth embodiment of the first aspect, or the fifth embodiment of the first aspect, or the sixth embodiment of the first aspect, or the seventh embodiment of the first aspect, or the eighth embodiment of the first aspect, or the ninth embodiment of the first aspect, the embodiment of the present application also provides an eleventh embodiment of the first aspect: the first electrode, the second electrode and the pen cap of the pen cap assembly are formed by injection molding. In a specific implementation, the force transmission convex portion of the pen cap assembly is formed on the first electrode, or on the second electrode. With such a configuration, the transmission efficiency of the pressing force is relatively high.

[0032] Based on the first aspect, or the first embodiment of the first aspect, or the second embodiment of the first aspect, or the third embodiment of the first aspect, or the fourth embodiment of the first aspect, or the fifth embodiment of the first aspect, or the sixth embodiment of the first aspect, or the seventh embodiment of the first aspect, or the eighth embodiment of the first aspect, or the ninth embodiment of the first aspect, or the tenth embodiment of the first aspect, or the eleventh embodiment of the first aspect, the embodiment of the present application also provides a twelfth embodiment of the first aspect: in a plane perpendicular to the length direction of the pen tail module, the projection of the body of the first electrode is circular, and the projection of the body of the second electrode is annular, and is sleeved on the outside of the body of the first electrode. In this way, the body of the first electrode is located on the inside, and a relatively large electrode area can be set to ensure that a large signal amount is obtained after contacting the contact object; the annular second electrode body is sleeved on the outside of the first electrode body, which can meet the coding signal communication without dead angles within the entire circumference, and improve the accuracy of identifying and determining the current erasing position.

[0033] In other practical applications, in a plane perpendicular to the length direction of the pen tail module, the projection of the body of the second electrode is circular, and the projection of the body of the first electrode is annular and is sleeved on the outside of the body of the second electrode.

[0034] In another practical application, in a plane perpendicular to the length direction of the pen tail module, the projection of the body of the second electrode is a "cross" shape, and the projection of the body of the first electrode is a circular ring and is sleeved on the outside of the body of the second electrode.

[0035] In another practical application, in a plane perpendicular to the length direction of the pen tail module, the projection of the body of the second electrode is a "cross" shape, the projection of the body of the first electrode is four arc segments spaced circumferentially, and the four extended ends of the second electrode are respectively located between two adjacent arc segments of the body of the first electrode. Of course, in other possible implementation schemes, the projection of the body of the second electrode can also be other numbers of extended ends arranged radially from the center to the outside, and correspondingly, the projection of the body of the first electrode is other numbers of arc segments spaced circumferentially, and each extended end is respectively located between two adjacent arc segments of the body of the first electrode.

[0036] Based on the first aspect, or the first embodiment of the first aspect, or the second embodiment of the first aspect, or the third embodiment of the first aspect, or the fourth embodiment of the first aspect, or the fifth embodiment of the first aspect, or the sixth embodiment of the first aspect, or the seventh embodiment of the first aspect, or the eighth embodiment of the first aspect, or the ninth embodiment of the first aspect, or the tenth embodiment of the first aspect, or the eleventh embodiment of the first aspect, or the twelfth embodiment of the first aspect, the embodiment of the present application also provides a thirteenth embodiment of the first aspect: the pen cap includes a pressing part and a connecting part, the pressing part is located in the middle of the pen cap, the connecting part is located at the periphery of the pen cap, and the outer peripheral surface of the connecting part has a glue groove. In this way, when the pen cap is bonded and fixed to the inner wall of the pen body, the glue layer formed based on the glue-containing space formed by the glue groove ensures a stable connection between the pen cap and the pen body.

[0037] In practical applications, the pressing portion of the pen cap may have an outwardly protruding curved outer contour, and accordingly, the electrode assembly that fits the inner wall surface of the pressing portion also has an outwardly protruding curved outer contour. With such a configuration, the user can tilt the pen body to perform functional operations, which can further improve the user experience. When performing the eraser function, the improvement in user experience is more significant.

[0038] A second aspect of an embodiment of the present application provides a stylus pen, which includes a pen body and a pen tail module as described above, wherein the pen tail module is fixedly disposed at the tail of the pen body, and a pen cap of the pen tail module is fixedly connected to the pen body.

[0039] Exemplarily, the pen barrel may be a hollow structure, and the pen cap and the inner wall of the pen barrel may be fixed by gluing.

[0040] A third aspect of an embodiment of the present application provides a touch control system, including an electronic device with a touch screen and a stylus pen compatible with the electronic device, wherein the stylus pen is the stylus pen described above.

[0041] The fourth aspect of the embodiment of the present application provides a control method for a stylus, the stylus includes the pen tail module as described above, and the control method for the stylus includes the following steps: obtaining an identification signal generated by coupling the first electrode and the contact object; when the identification signal is the first identification signal, executing the first function; when the identification signal is the second identification signal, executing the second function. Based on the contact objects of different materials, different identification signals can be coupled through the first electrode. Taking the first function as a key function and the second function as an eraser function as an example, the function that needs to be executed can be confirmed based on the finger or touch screen approaching the pen cap.

[0042] Based on the fourth aspect, the embodiment of the present application further provides a first implementation of the fourth aspect: the execution of the first function includes: obtaining first pressure data collected by the pressure sensor, and outputting a first control signal for executing the first function according to the first pressure data. For example, a key event is output, and the first control signal is used for the electronic device to execute the key function. When the pressure data does not reach the key operation threshold, the key event is released.

[0043] Based on the fourth aspect, or the first implementation of the fourth aspect, the embodiment of the present application also provides a second implementation of the fourth aspect: the execution of the second function includes: outputting a coding signal through the second electrode, and obtaining the second pressure data collected by the pressure sensor, and outputting a second control signal for executing the second function according to the second pressure data. For example, an eraser event is output, and the second control signal is used for the electronic device to execute the eraser function. When the pressure data does not reach the eraser operation threshold, the eraser event is released.

[0044] In actual applications, when the pressure data is greater than the trigger threshold of the second function, the second control signal for executing the second function is output; when the pen tail touches or approaches the touch screen, the eraser function can only be awakened by erasing hard, and it is in the off state in other scenarios, thereby reducing the power consumption of the product.

[0045] Based on the fourth aspect, or the first implementation of the fourth aspect, or the second implementation of the fourth aspect, the embodiment of the present application also provides a third implementation of the fourth aspect: before obtaining the identification signal generated by the coupling of the first electrode and the contact object, the pressure sensor collects third pressure data, and if the third pressure data meets the preset conditions, the step of obtaining the identification signal generated by the coupling of the first electrode and the contact object is executed. In other words, the identification signal generated by the coupling of the first electrode and the contact object is obtained based on the pressure data collected by the pressure sensor. When the pen tail module function is enabled, it is based on the condition that the pen tail applies pressing force and couples with the contact object to generate a corresponding identification signal. In this way, the first function or the second function can be avoided from being triggered by mistake. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1A schematic diagram of the overall structure of a touch control system provided in an embodiment of the present application;

[0047] Figure 2 A schematic diagram of the assembly relationship of a pen tail module provided in an embodiment of the present application;

[0048] Figure 3 for Figure 2 Schematic diagram of the assembly explosion of the pen tail module shown in FIG.

[0049] Figure 4 for Figure 2 A schematic diagram of a use state of the pen tail module shown in FIG.

[0050] Figure 5 for Figure 2 Schematic diagram of another use state of the pen tail module shown in ;

[0051] Figure 6 for Figure 2 A schematic diagram of another usage state of the pen tail module shown in FIG.

[0052] Figure 7 for Figure 3 Schematic diagram of the assembly relationship of the electrode assembly shown in;

[0053] Figure 8 for Figure 3 A schematic diagram of an assembly relationship of the pen tail module shown in ;

[0054] Fig. 9 for Figure 8 Schematic diagram of another angle assembly relationship between the conductive foam and the sensor FPC shown in FIG;

[0055] Fig.10 for Figure 3 Schematic diagram of the bending assembly relationship of the sensor FPC shown in;

[0056] Fig.11 for Fig. 9 Schematic diagram of the flattened state of the sensor FPC shown in;

[0057] Fig.12 for Figure 3 AA cross-sectional view of the pen tail module shown in;

[0058] Fig.13 for Figure 3 Schematic diagram of another use state of the pen tail module shown in ;

[0059] Fig.14A for Figure 3 A schematic diagram of the positional relationship among the limit baffle, the support member and the deformation bearing sheet shown in FIG.

[0060] Fig. 14B for Figure 3 A schematic diagram of the positional relationship of the support member pressing against the limit baffle shown in FIG.

[0061] Fig.15A A schematic diagram of the position relationship of another limit baffle in an initial state provided in an embodiment of the present application;

[0062] Fig. 15B for Fig.15A A schematic diagram showing the relationship between the position of the pen cap pressing against the limit baffle;

[0063] Fig.16A A schematic diagram of the position relationship of another limit baffle in an initial state provided in an embodiment of the present application;

[0064] Fig. 16B for Fig.16A A schematic diagram of the positional relationship of the deformation bearing sheet pressing against the limit baffle shown in FIG.

[0065] Fig.17 A schematic diagram of the assembly relationship of another pen tail module provided in an embodiment of the present application;

[0066] Fig.18 A schematic diagram of the overall structure of another pen tail module provided in an embodiment of the present application;

[0067] Fig.19 for Fig.18 A schematic diagram of an assembly relationship of the pen tail module shown in ;

[0068] Fig. 20 for Fig.18 BB cross-sectional view of the pen tail module shown in;

[0069] Fig.21 for Fig.18 Schematic diagram of the assembly relationship between the deformation bearing sheet and the pen tail bracket shown in;

[0070] Fig. 22 for Fig.18 Schematic diagram of the assembly relationship between the support member and the sensor FPC shown in;

[0071] Fig.23 for Fig.18 Schematic diagram of the bending assembly relationship of the sensor FPC shown in;

[0072] Fig.24 for Fig.18 Schematic diagram of the assembly relationship of the pen cap assembly shown in;

[0073] Fig.25A A projection view of a first electrode and a second electrode provided in an embodiment of the present application;

[0074] Fig.25BAnother projection view of a first electrode and a second electrode provided in an embodiment of the present application;

[0075] Fig.25C A projection view of another first electrode and a second electrode provided in an embodiment of the present application;

[0076] Fig.25D Another projection view of a first electrode and a second electrode provided in an embodiment of the present application;

[0077] Fig.26 A flowchart of a stylus pen control method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0078] The embodiment of the present application provides a solution for implementing a pen tail module that integrates button functions and eraser functions, which can effectively avoid the impact of tail shaking.

[0079] Generally, a stylus pen is used as an input device for electronic devices, and can be used for writing, drawing, and other operations on the touch screen of the electronic device. Figure 1 , which is a schematic diagram of the overall structure of a touch control system provided in an embodiment of the present application. The touch control system includes a stylus 100 and an electronic device 200. For ease of description, Figure 1 In the figure, the electronic device 200 is taken as a tablet computer as an example.

[0080] The stylus 100 can provide input to the electronic device 200, and the electronic device 200 can perform corresponding operation functions based on the input of the stylus 100. Among them, electrodes can be set in the tip of the stylus 100, and coding signals are emitted through the electrodes. The touch screen 201 of the electronic device 200 that interacts with the stylus 100 can be integrated with an electrode array, that is, a capacitive electrode array adapted to the electrodes on the side of the stylus. The electronic device 200 receives the coding signal from the stylus 100 through the electrode array, identifies the position of the tip of the stylus 100 on the touch screen 201 based on the change in the capacitance value on the touch screen 201, and realizes operation functions such as writing and painting.

[0081] In a specific implementation, the stylus pen 100 and the electronic device 200 can be interconnected through a wireless communication network to achieve interaction of wireless signals. The communication network can be, but is not limited to, a short-range communication network such as a WI FI hotspot network, a WI FI peer-to-peer (P2P) network, a Bluetooth network, a zigbee network, or a near field communication (NFC) network. This embodiment of the application is not limited thereto.

[0082] A typical stylus has a physical button at the end of the pen, and exchanges information with the electronic device 200 through the button function; at the same time, the end of the physical button contacts the touch screen to realize the erasing function. However, due to the structural characteristics of the physical button having a pressing stroke, the end of the physical button is in a floating state, and the end of the physical button can be felt to shake when the eraser function is executed through the end, which affects the user experience.

[0083] Based on this, an embodiment of the present application provides a pen tail module for adapting to the pen body of a stylus pen, the pen tail module comprising an elastic pen cap, a first electrode and a second electrode; wherein the pen cap is used to connect to the pen body, and the first electrode and the second electrode are arranged on the pen cap at intervals; the first electrode is used to couple with a contact object to generate an identification signal, when the contact object is a first contact object, the identification signal is a first identification signal for executing a first function, and when the contact object is a second contact object, the identification signal is a second identification signal for executing a second function; the first contact object and the second contact object are made of different materials, and the first identification signal is different from the second identification signal, so as to identify and confirm the function that needs to be executed when the user operates the pen tail module; the second electrode is used to emit a coding signal.

[0084] Here, the elastic pen cap can be made of elastic material, such as but not limited to rubber or TPU (Thermoplastic Urethane, thermoplastic polyurethane elastomer) material, which can produce moderate deformation and provide restoring force when the user applies pressure to meet the corresponding operation function requirements. The first function can be a key function, and the second function can be an eraser function or a marker function, or a function related to a drawing application, which is not limited in the embodiments of the present application. Taking the first function as a key function and the second function as an eraser function as an example, the user's finger pressing the pen cap can achieve the pressing stroke requirement of the key function, and restore the original state when the finger is lifted; for another example, when the user presses the pen cap against the touch screen to achieve the eraser function, the hand feel feedback of the force change is achieved, and the deformation is restored when the pressing force is reduced, so as to maintain reliable contact with the touch screen during the erasing operation.

[0085] In this way, based on the contact objects of different materials, different identification signals can be coupled through the first electrode. When the contact object is the first contact object, the identification signal is the first identification signal for executing the key function, and when the contact object is the second contact object, the identification signal is the second identification signal for executing the eraser function; that is, the pen tail module can realize the key function and the eraser function at the same time, and confirm the function that needs to be executed currently based on the contact object close to the pen cap. At the same time, based on the deformation ability provided by the elastic pen cap, when the user executes the key function, the deformation energy reserved by the compressed deformation is released through the pen cap, and the pen cap drives the electrode to reset based on the restored shape; when the user presses the pen cap against the touch screen to perform the erasing operation, on the one hand, a hand feel feedback similar to that of a traditional eraser can be obtained when the force of the erasing operation changes, forming a pressure-sensitive eraser, which can completely avoid the shaking feeling of the traditional physical key to perform the erasing function. On the other hand, the deformation can be restored when the pressing force is reduced. During the erasing operation, the pen cap can always maintain reliable contact with the touch screen, so that the electronic device side responds to the user operation and presents a continuous and stable erasing mark, which can improve the user experience as a whole.

[0086] In addition, based on the structural characteristics of the elastic pen cap, during the key operation, the pen cap does not need to move as a whole relative to the pen barrel, and the connection between the pen cap and the pen barrel can be configured as a glued sealed connection, or a gap-free fit. In this way, when the fingers are sweating or wet, compared with the traditional physical key solution, the application of this application solution can avoid water vapor from entering the internal circuit, ensure operational reliability, and further improve the user experience.

[0087] In order to better understand the technical solution and technical effect of the present application, without losing generality, the specific embodiments will be described in detail in conjunction with the accompanying drawings, and the key function and eraser function will be used as the basis for describing the pen tail module function. Figure 2 and Figure 3 ,in, Figure 2 This is a schematic diagram of the assembly relationship of a pen tail module provided in an embodiment of the present application. Figure 3 for Figure 2 The assembly explosion diagram of the pen tail module is shown in .

[0088] like Figure 2 As shown, the pen tail module 10 of the stylus pen 100 is located at the tail end of the pen body 20. In this embodiment, the pen body 20 is a hollow structure, and the main body of the pen tail module 10 is built into the pen body 20. After assembly, the elastic pen cap 1 is fixed to the pen body 20, and the surface is exposed to the pen body 20, which is used to realize the key function and the eraser function. The overall appearance is good.

[0089] like Figure 3As shown, the pen tail module 10 includes a pen cap 1, an electrode assembly 2, a sensor FPC (Flexible Printed Circuit) 6 and a pen tail bracket 8. The electrode assembly 2 is fixedly connected to the pen cap 1, and the sensor FPC 6 is provided with a pressure sensor 61, which is fixed to the pen tail bracket 8.

[0090] In this embodiment, the electrode assembly 2 includes a first electrode 21 and a second electrode 22. The surfaces of the first electrode 21 and the second electrode 22 opposite to the pressing portion of the pen cap 1 are respectively fitted with the inner wall surface of the pressing portion 11 to have good interactive response capabilities in the working state. Here, the pen cap 1 includes a pressing portion 11 and a connecting portion 12. The connecting portion 12 is located at the periphery of the pen cap 1 and is used to be bonded and fixed to the inner wall of the pen barrel 20. The pressing portion 11 is located on the inner side of the connecting portion 12 to apply a pressing force at the end of the pen, for example but not limited to, applying a pressing force to realize a key function and an eraser function. The material of the pen cap 1 can be selected from a material with a Rockwell hardness of less than 90A and greater than 60A to take into account the needs of the key and eraser functions.

[0091] The first electrode 21 is used to couple with the contact object to generate an identification signal, that is, a capacitance signal detection electrode, and the second electrode 22 is used to transmit a coding signal, that is, a coding communication electrode.

[0092] When the contact object is a first contact object, the identification signal is a first identification signal for executing a key function, where the "first contact object" may be a user's finger. Figure 4 As shown, when the finger approaches or touches the first electrode 21, the operating finger is equivalent to the other electrode of the capacitor. Based on the physical properties of the finger, the two are coupled to form a first capacitor and generate a first capacitance value; at this time, based on the specific elasticity of the pen cap 1, the pen tail module 10 can be operated to perform the key function. After the finger presses the pen cap, the generated command signal is interacted to the electronic device 200 side, and the electronic device can execute the key function according to the specific function setting. For example, in the reading interface, a single press of the button will turn the page backward, and pressing the button twice in a row will turn the page forward. It should be understood that the button function setting can be determined according to the overall design requirements of the product, and the embodiment of the present application is not limited.

[0093] When the contact object is a second contact object, the identification signal is a second identification signal for executing an eraser function, where the "second contact object" may be a touch screen 201 of an electronic device. Figure 5 As shown, when the end of the pen tail module 10 approaches or contacts the touch screen 201, based on the physical properties of the material of the touch screen 201, the two are coupled to form a second capacitor and generate a second capacitance value. At this time, the pen tail module 10 can be operated to perform an eraser function. As the user manipulates the stylus 100 to move relative to the touch screen 201, as shown in FIG. Figure 6As shown, the electronic device 200 can identify and determine the current erasing position based on the coding signal emitted by the second electrode 22, and form a corresponding erasing mark based on the change in the capacitance value on the touch screen 201. At the same time, the pressure-sensing signal generated by the change in the user's force can be synchronously interacted with the electronic device 200, and the erasing effect can be adjusted based on the change in the pressure-sensing signal, such as but not limited to adjusting the width of the erasing mark, or adjusting the transparency of the erasing mark.

[0094] In a possible implementation, the "first contact object" may also be another object of a different material from the second contact object, such as but not limited to a band-aid covering the user's finger, and the finger covered with the band-aid presses the pen cap to realize the key function; or the first contact object may also be a desktop, and the pen tail is pressed toward the desktop to realize the key function. In other words, as long as the material of the "first contact object" is different from the material of the touch screen 201, it can be coupled with the first electrode 21 to generate different capacitance values.

[0095] Similarly, in other possible implementation schemes, the "second contact object" may also be other objects of a different material from that of the first contact object, such as but not limited to a touch pad that is communicatively connected to the electronic device 200, which can also realize the function confirmation of the pen tail module 10.

[0096] Please also see Figure 7 , the figure is Figure 3 Schematic diagram of the assembly relationship of the electrode assembly shown in.

[0097] Combination Figure 3 and Figure 7 As shown, the first electrode 21 and the second electrode 22 can be respectively assembled on the electrode bracket 23 to form an electrode assembly 2. The body of the first electrode 21 is circular and has a first electrical connection portion 211 extending toward the pen shaft side; the body of the second electrode 22 is annular and has a second electrical connection portion 221 extending toward the pen shaft side. The body of the second electrode 22 is sleeved on the outside of the body of the second electrode 22. In other specific implementations, the body shapes of the first electrode 21 and the second electrode 22 are not limited to those shown in the figure, and the embodiments of the present application are not limited thereto.

[0098] Correspondingly, the surface of the electrode holder 23 opposite to the pen cap 1 has a first inner recess 231 and a second inner recess 232. The first inner recess 231 is located in the middle, and has a first through hole 2311 penetrating the body of the electrode holder 23. The body of the first electrode 21 is embedded in the first inner recess 231. The second inner recess 232 is located in the outer circle of the first inner recess 231. The second inner recess 232 has a second through hole 2321 penetrating the body of the electrode holder 23. The body of the second electrode 22 is embedded in the second inner recess 232. After assembly, the first electrical connection portion 211 of the first electrode 21 extends out of the first through hole 2311, and the second electrical connection portion 221 of the second electrode 22 extends out of the second through hole 2321, that is, the electrical connection portions of the two electrodes both extend out of the electrode holder 23 to respectively realize electrical connection between the two.

[0099] In a specific implementation, after the electrode assembly 2 is assembled into one body, it can be further fixed with the pen cap 1 to form a pen cap assembly, and then the overall assembly is performed. For example, but not limited to, a gluing process can be used to implement the pre-installation and fixation of the electrode assembly 2 and the pen cap 1. At the same time, the pen cap assembly has a force transmission convex portion 233 for assembling and adapting to the support side, and the force transmission convex portion 233 is arranged on the side of the electrode bracket 23 that is away from the pen cap 1.

[0100] In this embodiment, the pressing portion 11 of the pen cap 1 has a protruding curved outer contour, and accordingly, the electrode assembly 2 that is in contact with the inner wall surface of the pressing portion 11 also has a protruding curved outer contour. With such a configuration, the user can tilt the pen body to perform functional operations, which can further improve the user experience. In particular, when performing the eraser function, the improvement in user experience is more significant.

[0101] In order to improve the electrical performance of the first electrode 21 and the second electrode 22, optionally, the first electrical connection part 211 and the second electrical connection part 221 are spaced apart. For example, the first electrical connection part 211 and the second electrical connection part 221 shown in the figure are respectively arranged on both sides of the force transmission protrusion 233. Further optionally, the first electrical connection part 211 can be located at the outer edge of the first electrode 21 to increase the distance between it and the second electrical connection part 221. On this basis, the inner edge of the body of the second electrode 22 can be correspondingly provided with an avoidance recess 222 to ensure the physical insulation between the second electrode 22 and the first electrical connection part 211, so as to meet the electrical performance requirements of the two electrodes.

[0102] In addition, the first electrical connection portion 211 and the second electrical connection portion 221 can be electrically connected to the sensor FPC6 through conductive foam to obtain a reliable electrical connection relationship. Figure 3 , Figure 8 and Fig. 9 ,in, Figure 8 for Figure 3A schematic diagram of the assembly relationship of the pen tail module shown in FIG. Fig. 9 for Figure 8 Schematic diagram of the assembly relationship between the conductive foam and the sensor FPC at another angle.

[0103] like Figure 8 and Fig. 9 As shown, the sensor FPC6 has the functions of both the pressure sensor 61 and the wire, has a high degree of integration, and has good assembly processability.

[0104] The first end 62 of the sensor FPC 6 is bent to a side opposite to the electrical connection portion of the two electrodes and can be disposed on the support member 4. Fig.11 , the figure is Fig. 9 Schematic diagram of the flat state of the sensor FPC shown in.

[0105] Combination Fig.11 As shown, the first end 62 includes two electrical connection ports 621, which are respectively arranged corresponding to the first electrical connection portion 211 of the first electrode 21 and the second electrical connection portion 221 of the second electrode 22. The first electrical connection portion 211 is connected to the corresponding electrical connection port on the first end 62 through the first conductive foam 31, and the second electrical connection portion 221 is connected to the corresponding electrical connection port on the first end 62 through the second conductive foam 32.

[0106] The electrical connection port 621 can be the surface bright copper of the sensor FPC6, and the conductive foam can be bonded to the corresponding surface bright copper with conductive adhesive, so as to form a reliable electrical connection based on the relatively large contact area. After assembly, the first electrical connection part 211 and the second electrical connection part 221 of the two electrodes are respectively electrically connected to the first conductive foam 31 and the second conductive foam 32, and an electrical connection path is formed through the wire 64 in the sensor FPC6 substrate.

[0107] In other specific implementations, the electrical connection port may also be a pad structure provided on the sensor FPC 6, and the electrical connection can also be achieved through the sensor FPC 6. The present application embodiment is not limited thereto.

[0108] For example Fig. 9As shown, the support member 4 includes a force transmission concave portion 41 and a pressing portion 42. The force transmission concave portion 41 is arranged opposite to the force transmission convex portion 233 of the pen cap assembly, and the force transmission convex portion 233 can be partially inserted into the force transmission concave portion 41 of the support member 4 and abut against the force transmission concave portion 41 to transmit the pressing force through the support member 4; for example but not limited to, the contact surfaces of the two can be fixed by glue. In other possible implementation schemes, the abutting and adapted force transmission convex portion and force transmission concave portion can also be reversely arranged between the pen cap assembly and the support member, that is, the force transmission concave portion is arranged on the pen cap assembly side, and the force transmission convex portion is arranged on the support member side (not shown in the figure), which can also take into account good assembly positioning and transmission of pressing force.

[0109] The pressing portion 42 is located on the other side of the support member 4 away from the force transmission recess 41, and can be in contact with the force bearing surface 51 of the deformation bearing sheet 5. Here, the pressing portion 42 on the support member 4 can be a structure protruding from the main body of the support member 4, or can be the outer surface of the main body of the support member 4. In other words, the pressing portion 42 may not protrude from the main body of the support member 4.

[0110] In this embodiment, the deformation bearing sheet 5 is fixedly arranged on the pen tail bracket 8, and the pressure sensor 61 of the sensor FPC 6 is fixedly attached to the detection surface 52 of the deformation bearing sheet 5. Fig.12 , the figure is Figure 3 The cross-sectional view of the pen tail module shown in FIG. Figure 3 The AA section position shown in is formed.

[0111] Combination Fig.12 As shown, the force F applied to the pen end can be sequentially transmitted to the deformation bearing sheet 5 through the pen cap 1, the electrode assembly 2 and the support member 4, and the pressure sensor 61 covering its detection surface 52 can obtain the user's operation pressure, thereby realizing the key function or the eraser function according to the operation instruction. The key function and the eraser function share a pressure sensing device, which can save design space and reasonably control costs.

[0112] In a specific implementation, the pressure sensor 61 may be Fig.11 The four resistance strain gauges arranged in the sensor FPC6 shown in the figure constitute a full-bridge circuit. During operation, the deformation of the deformation bearing sheet 5 can be converted into an electrical signal, such as but not limited to a voltage signal. When the pressing force is input at the end of the pen, the detection voltage can be obtained through the full-bridge circuit. Specifically, within the strength range of the deformation bearing sheet 5, the greater the pressing force, the greater the deformation of the deformation bearing sheet 5, and the greater the value of the electrical signal obtained by the detection. The specific functions can be implemented using existing technologies and will not be repeated here.

[0113] For example, when the pressing force increases, the erased area may gradually increase. Fig.13As shown in the figure, the three erasing areas are used as examples to illustrate the gradual trend of the erasing area. As the pressing force increases, the erasing area gradually changes from Zone1 to Zone2 to Zone3, and the width of the erasing mark gradually widens. Vice versa, as the pressing force decreases, the erasing area gradually changes from Zone3 to Zone2 to Zone1, and the width of the erasing mark gradually narrows.

[0114] As another example, when the pressing force increases, the transparency of the erasure mark may gradually increase, and when the pressing force decreases, the transparency of the erasure mark may gradually decrease.

[0115] In addition, the pressure sensor 61 used to measure the pressure applied by the end of the stylus pen is not limited to the resistance strain gauge structure shown in the figure. In a specific implementation, the pressure sensor can be used to collect pressure data of the end of the stylus pen 100, and then transmit the pressure data to the control unit. The pressure data may include but is not limited to: pressure value, which can be selected according to the overall design requirements of the product.

[0116] In addition, the deformation bearing sheet 5 can be a steel sheet, which has good bearing strength. At the same time, based on the deformation reset ability of the steel sheet structure, it has good anti-fatigue characteristics. In other possible implementation schemes, a deformation bearing sheet 5 of other materials can be selected according to the overall setting requirements of the product, which will not be repeated here.

[0117] In a specific implementation, the deformation bearing sheet 5 can be fixed to the pen tail bracket 8 through both ends, so as to generate deformation based on the pressing force acting on the force-bearing surface 51 of the deformation bearing sheet 5. Of course, in other specific implementations, the deformation bearing sheet 5 can also be fixed to the pen tail bracket 8 through a single end, and can also generate deformation when the pen tail is forced, which is not limited in the embodiment of the present application.

[0118] As shown in the figure, the detection surface 52 is another surface on the deformation bearing sheet 5 opposite to the force bearing surface 51. In this way, the space in the length direction of the pen shaft is fully utilized to arrange the pressure sensor 61, and the integration is high. In other possible implementations, the detection surface 52 and the force bearing surface 51 can also be located on the same side surface of the deformation bearing sheet 5 (not shown in the figure).

[0119] In order to further improve the module assembly processability, optionally, a positioning pair can be configured between the electrode assembly 2 and the support member 4. Figure 8 and Fig. 9As shown, the force transmission protrusion 233 on the electrode assembly 2 side has a positioning block 2331 extending to the side, and accordingly, the side wall of the force transmission concave portion 41 expands to the side to form a positioning groove 411. During assembly, the positioning block 2331 on the electrode assembly 2 side can be partially placed in the positioning groove 411 of the support member 4 to form a positioning pair to meet assembly requirements. This arrangement can avoid assembly errors of the electrical connection parts of the two electrodes and has a fool-proof effect.

[0120] The second end 63 of the sensor FPC6 is used to connect to the control unit 91 in the pen holder 20. Fig.12 As shown, corresponding signal transmission and power transmission can be established. In a specific implementation, as Fig.11 As shown, the portion of the pressure sensor 61 to the second end 63 of the sensor FPC 6 can extend from the middle cavity of the pen tail bracket 8 to the side of the control unit 91 .

[0121] In other possible implementations, the first electrode 21, the second electrode 22 and the pressure sensor 61 may be electrically connected to the control unit 91 via wires (not shown in the figure), rather than being limited to the form of a sensor FPC with integrated wire function.

[0122] Here, the pen tail bracket 8 can be fixed with other fixing components in the pen body 20 to realize the assembly of the pen tail module. For example, but not limited to, the inner side end of the pen tail bracket 8 is inserted or clamped with the pen core 9 in the pen body 20. In other specific implementations, the pen tail bracket 8 can also be fixed with the inner wall of the pen body 20 through the outer peripheral surface, for example, but not limited to adhesive fixation. The embodiment of the present application is not limited.

[0123] In order to avoid damage to the internal structure of the module due to excessive force, the pen tail module provided in this embodiment may optionally include a limit baffle. Fig. 9 and Fig.12 As shown, compared with the deformation bearing sheet 5, the limit baffle 7 is arranged close to the support member 4. The limit baffle 7 shown in the figure is fixed to the end of the pen tail bracket 8, for example but not limited to, the two ends of the limit baffle 7 can be bonded and fixed to the pen tail bracket 8; the deformation bearing sheet 5 is fixed in the inner cavity of the pen tail bracket 8, for example but not limited to, the two ends of the deformation bearing sheet 5 can also be bonded and fixed to the pen tail bracket 8. At the same time, the support member 4 includes a limit surface 43, which is located on the side of the support member 4 opposite to the limit baffle 7. In the pressing direction of the pen cap assembly, there is a distance L between the limit surface 43 of the support member 4 and the limit baffle 7.

[0124] It should be understood that the limiting surface 43 can be a plane as shown in the figure, or a non-planar shape, as long as it can form a constrained limiting relationship with the limiting baffle in the pressing direction of the pen cap assembly to limit the pressing stroke of the pen cap assembly. Fig.14A and Fig. 14B ,in, Fig.14A A schematic diagram showing the position relationship between the limit baffle, the support member and the deformation bearing sheet in the initial state is shown. Fig. 14B A simplified diagram showing the positional relationship of the support member pressing against the limit baffle.

[0125] When the pressing force F of the pen end gradually increases, the distance L decreases accordingly until the limiting surface 43 of the support member 4 presses against the limiting baffle 7. Fig. 14B As shown, after the limit surface 43 is pressed against the limit baffle 7, the generated reaction force Fr can offset part of the pressing force F, ensuring that the deformation bearing sheet 5 is not crushed. The maximum displacement of the deformation bearing sheet 5 is L, which is roughly equal to the distance between the limit surface 43 and the limit baffle 7, which can protect the working state of the pressure sensor 61.

[0126] Optionally, within the tolerable range of the pressure sensor 61, the pressing stroke of the pen cap assembly can be reasonably controlled by adjusting the thickness d of the limit baffle 7 to achieve the constraint of the pressing force on the pen tail button. In other words, based on the blocking and limiting of the limit baffle 7, the possible impact of excessive operating force can be reasonably controlled.

[0127] For example Fig. 9 As shown, in a specific implementation, a relief opening 71 is provided on the limit baffle 7, so that the pressing portion 42 of the support member 4 contacts the deformation bearing sheet 5 through the relief opening 71. Fig.12 As shown, a mounting step surface 81 can be set on the inner wall of the pen tail bracket 8, and the deformation bearing sheet 5 is fixedly set on the mounting step surface 81; of course, in other possible implementation schemes, the deformation bearing sheet 5 can be fixed to the pen tail bracket 8 in other structural forms, as long as reliable fixation can be achieved.

[0128] It should be noted that the limit baffle, as a limit part for limiting the pressing stroke of the pen cap assembly, can be arranged at different positions and can also play the role of preventing the limit.

[0129] In one possible implementation, Fig.15A and Fig. 15B As shown, the limit baffle 7 can be arranged to be opposite to the pen cap 1 on which the electrode assembly 2 is installed. Fig.15A Another schematic diagram of the position relationship of the limit baffle in the initial state is shown. In the pressing direction of the pen cap assembly, there is a distance L between the limit baffle 7 and the limit surface of the pen cap assembly. Here, the limit baffle can be fixed on the pen tail bracket 8, or on the inner wall surface of the pen barrel (not shown in the figure); Fig. 15BA simplified diagram of the positional relationship of the pen cap 1 equipped with an electrode assembly pressing against the limit baffle 7 is shown. After the inner limit surface of the pen cap 1 presses against the limit baffle 7, the generated reaction force Fr can also offset part of the pressing force F. The maximum displacement of the deformation bearing sheet 5 is L, which can ensure that the deformation bearing sheet 5 is not crushed.

[0130] In other possible implementations, such as Fig.16A and Fig. 16B As shown, the limit baffle 7 can also be arranged to be opposite to the deformation bearing sheet 5. Fig.16A A schematic diagram of the position relationship of another limiting baffle in the initial state is shown. The limiting baffle 7 is located on the side of the deformation bearing sheet 5 that is away from the support member 4. In the pressing direction of the pen cap assembly, there is a distance L between the limiting baffle 7 and the deformation bearing sheet 5. Here, the limiting baffle can be fixed on the pen tail bracket 8 (not shown in the figure); Fig. 16B A simplified diagram of the positional relationship of the deformation bearing sheet 5 pressing against the limit baffle 7 is shown. After the deformation bearing sheet 5 is compressed and deformed and pressed against the limit baffle 7, the generated reaction force Fr can also offset part of the pressing force F. The maximum displacement of the deformation bearing sheet 5 is L, which can ensure that the deformation bearing sheet 5 is not crushed.

[0131] In the above embodiment, two electrodes are assembled and fixed on the electrode bracket 23 to form the electrode assembly 2, and the electrode assembly 2 is assembled and fixed with the pen cap 1 to form the pen cap assembly. In other specific implementations, the two electrodes and the pen cap can also be integrally formed by injection molding.

[0132] See also Fig.17 , which is a schematic diagram of the assembly relationship of another pen tail module provided in the embodiment of the present application. Figure 3 The differences and connections between the described embodiments, and the components or structures with the same functions are indicated in the figures with the same symbols.

[0133] like Fig.17 As shown, the pen tail module 10a is located at the tail end of the pen body 20. In this embodiment, the first electrode 21, the second electrode 22 and the pen cap 1a are integrally injection molded to form a pen cap assembly, and the force transmission convex portion 13a is injection molded. In other words, relative to Figure 3 The pen tail module described, the pen cap and the electrode bracket in this scheme are formed by injection molding material in this embodiment.

[0134] In this embodiment, the force transmission protrusion 11a is arranged opposite to the force transmission concave portion 41 of the support member 4, and can be partially inserted into the force transmission concave portion 41 of the support member 4 and abut against the force transmission concave portion 41 to transmit the pressing force through the support member 4. The first electrical connection portion 211 of the first electrode 21 and the second electrical connection portion 221 of the second electrode 22 are both extended and exposed to the injection molding material, and are respectively abutted against and electrically connected to the first conductive foam 31 and the second conductive foam 32, and are respectively connected to the corresponding electrical connection ports on the first end 62 through the first conductive foam 31 and the second conductive foam 32.

[0135] In addition, the support member 4a and the deformation bearing sheet 5a of this embodiment are integrally formed, that is, the support member 4a and the deformation bearing sheet 5a are one part. For ease of description, corresponding marks are given to the support member 4a and the deformation bearing sheet 5a in the figure. In a specific implementation, the support member 4a and the deformation bearing sheet 5a can be made of steel, and the two ends of the deformation bearing sheet 5a can be welded to the pen tail bracket 8, which can effectively improve the overall structural strength of the pen tail.

[0136] Similarly, the pressure sensor 61 of the sensor FPC6 is fixedly attached to the detection surface 52a of the deformation bearing sheet 5a. In this way, the force applied to the pen tail can be transmitted to the integrally formed support member 4a and the deformation bearing sheet 5a through the pen cap 1a and the electrode assembly 2 in sequence, and the pressure sensor 61 covering its detection surface 52a can obtain the user's operating pressure to realize the corresponding function according to the corresponding operating instructions. In addition, there is a spacing L between the limit surface 43a of the support member 4a and the limit baffle 7 to construct a limit constraint for the pressing stroke.

[0137] Other structures and connections can be made by using the aforementioned Figure 3 The described implementation is implemented in the same manner and will not be repeated here.

[0138] The foregoing Figure 3 and Fig.17 In the described embodiments, the limiter for restricting the pressing stroke adopts the structure of a limit baffle and is formed based on the support member. In other implementations, the limiter for the pressing stroke can also be formed based on a deformation bearing sheet.

[0139] See also Fig.18 and Fig.19 ,in, Fig.18 This is a schematic diagram of the overall structure of another pen tail module provided in an embodiment of the present application. Fig.19 for Fig.18 In order to clearly illustrate the present embodiment and Figure 3 and Fig.17The differences and connections between the described embodiments, and the components or structures with the same functions are indicated in the figures with the same symbols.

[0140] like Fig.18 As shown, the pen cap assembly of the pen tail module 10b is formed by integral injection molding of the pen cap 1b, the first electrode 21b and the second electrode 22b. Here, the force applied to the pen tail can be sequentially transmitted to the deformation bearing sheet 5b through the pen cap assembly and the support member 4b, and the deformation bearing sheet 5b is fixed on the pen tail bracket 8b.

[0141] like Fig.19 As shown, the first electrical connection portion 211 of the first electrode 21b and the second electrical connection portion 221 of the second electrode 22b both extend out and are exposed from the injection molding material, and are electrically connected to the first conductive foam 31 and the second conductive foam 32 respectively, and are connected to the corresponding electrical connection ports on the first end 62 through the first conductive foam 31 and the second conductive foam 32 respectively.

[0142] Please also see Fig. 20 , the figure is Fig.18 The BB cross-section view of the pen tail module shown in FIG. Fig. 20 As shown, the pen tail module 10b is located at the tail end of the pen body 20, and the outer peripheral surface of the connecting part 12b of the pen cap 1b has a glue groove 121b. When it is bonded and fixed to the inner wall of the pen body 20, the glue layer formed based on the glue-containing space formed by the glue groove 121b ensures a firm connection between the pen cap 1b and the pen body 20.

[0143] Among them, the pressing part 42b of the support member 4b is in contact with the force-bearing surface 51b of the deformation bearing sheet 5b, and the pressure sensor 61 configured on the sensor FPC 6 is attached and fixed to the detection surface 52b of the deformation bearing sheet 5b, converting the deformation of the deformation bearing sheet 5a into an electrical signal.

[0144] In this embodiment, a limiting portion 82b is provided in the middle of the pen end bracket 8b, and a distance L is provided between the pressure sensor 61 covering the detection surface 52b of the deformation bearing sheet 5b and the limiting portion 82b of the pen end bracket 8b; that is, the FPC configured with the pressure sensor 61 and the limiting portion 82b are arranged with a relative spacing. In this way, after the deformation bearing sheet 5b is deformed by pressure to press against the limiting portion 82b, the reaction force generated can also offset part of the pressing force (see Fig. 16B ) to ensure that the deformation bearing sheet 5b is not crushed.

[0145] Of course, in other possible specific implementations, the limiting portion 82b of the pen tail bracket 8b can also be arranged relative to the detection surface 52b of the deformation bearing sheet 5b (not shown in the figure), and the detection surface 52b is pressed against the pressing limiting portion 82b to achieve the constraint limit of the pressing stroke.

[0146] In order to improve the reliability of the fixed connection between the deformation bearing sheet 5a and the pen end bracket 8b, optionally, the end of the deformation bearing sheet 5b includes a mounting portion 53b bent toward the pen end bracket 8b. Fig.18 As shown, the pen tail bracket 8b is provided with a corresponding notch 83b, and the mounting portion 53b at the end of the deformation bearing piece 5b is inserted and fixed in the notch 83b, so that the inserted and adapted mounting portion 53b and the notch 83b can provide assembly positioning, and then be welded or glued and fixed. On the one hand, it has good assembly processability and can improve the assembly accuracy of the product; on the other hand, it increases the fixed contact area between the two, and the fixed relationship is effectively strengthened.

[0147] Please also see Fig. 20 , Fig.21 and Fig. 22 ,in, Fig.21 for Fig.18 The schematic diagram of the assembly relationship between the deformation bearing sheet and the pen tail bracket is shown in, Fig. 22 for Fig.18 Schematic diagram of the assembly relationship between the support member and the sensor FPC shown in.

[0148] In the specific implementation, Fig.21 As shown, both ends of the deformation bearing piece 5b can be provided with mounting parts 53b, which are respectively inserted and fixed in the corresponding slots 83b on the pen tail bracket 8b, so that the assembly relationship is more stable.

[0149] The pressing force applied to the end of the pen acts on the force-bearing surface 51b of the deformation bearing sheet 5b through the pressing portion 42b of the support member 4b. In order to further improve the reliability of the use of the support member 4b, optionally, the pressing portion 42b of the support member 4b is provided with a metal adapter 44b, and the metal adapter 44b includes a pressing surface 441b, which is arranged opposite to the force-bearing surface 51b of the deformation bearing sheet 5b, and the deformation is generated by the pressing surface 441b of the metal adapter 44b acting on the deformation bearing sheet 5b. In this way, based on the setting of the metal adapter 44b, the bearing capacity of the support member 4b can be improved, and for the pen end module with integrated button function and eraser function, stable reliability of use can be maintained in scenarios with high operating frequency.

[0150] The metal adapter 44b and the body of the support member 4b may be integrally formed by an injection molding process. For example, but not limited to, the body of the support member 4b may be injection molded by using PC (Polycarbonate) material.

[0151] Please also see Fig. 20 , Fig. 22 and Fig.23 ,in, Fig.23 for Fig.18The schematic diagram of the bending assembly relationship of the sensor FPC is shown in the figure. As shown in the figure, the first end 62 of the sensor FPC6 is bent to the side opposite to the electrical connection parts of the two electrodes, the first electrical connection part 211 is connected to the corresponding electrical connection port on the first end 62 through the first conductive foam 31, and the second electrical connection part 221 is connected to the corresponding electrical connection port on the first end 62 through the second conductive foam 32. The part of the pressure sensor 61 to the second end 63 of the sensor FPC6 can extend from the outside of the pen tail bracket 8 to the control unit 91 side.

[0152] See also Fig.24 , the figure is Fig.18 Schematic diagram of the assembly relationship of the pen cap assembly is shown in . In this embodiment, the force transmission protrusion 212b of the pen cap assembly is arranged on the first electrode 21b. Here, the force transmission protrusion 212b used to abut the force transmission concave portion 41b on the support member 4b is integrally formed with the first electrode 21b. The elastic modulus of the first electrode 21b is relatively low, so the transmission efficiency of the pressing force is relatively high. On this basis, the positioning block 2121b used to play an anti-foolproof role is extended to the side from the force transmission protrusion 212b, and similarly, the positioning block 2121b is integrally formed with the first electrode 21b. When assembled, the positioning block 2331b on the pen cap assembly side can be partially placed in the positioning groove 411b of the support member 4b to form an anti-foolproof positioning pair.

[0153] Different structures can be used for the first electrode and the second electrode configured in the pen cap assembly. Please refer to the four different structural implementation schemes of the first electrode and the second electrode shown in Figure 25. The structure shown by the vertical line section line in the figure is the body of the first electrode, and the structure shown by the grid section line in the figure is the body of the second electrode.

[0154] See also Fig.25A , this figure is a projection view of a first electrode and a second electrode provided in an embodiment of the present application, and the projection direction is the length direction of the stylus. In a plane perpendicular to the length direction of the pen tail module, the projection of the body of the first electrode 21A is circular, and the projection of the body of the second electrode 22A is annular, and is sleeved on the outside of the body of the first electrode 21A. It should be understood that the length direction of the pen tail module here is consistent with the length direction of the stylus. Among them, the body of the first electrode 21A is located on the inside, and a relatively large electrode area can be set to ensure that a larger signal amount is obtained after contact with the contact object; the body of the annular second electrode 22A is sleeved on the outside of the body of the first electrode 21A, which can meet the coding signal communication without dead angles within the full range of 360°, and improve the accuracy of identifying and determining the current erasing position.

[0155] Understandably, Fig.25A The body configuration of the two electrodes shown is similar to the above Figure 3 , Fig.17 and Fig.18 The described embodiments are consistent.

[0156] See also Fig.25B , which is a projection view of another first electrode and a second electrode provided in an embodiment of the present application. In a plane perpendicular to the length direction of the pen tail module, the projection of the body of the second electrode 22B is circular, and the projection of the body of the first electrode 21B is annular and is sleeved outside the body of the second electrode 22B.

[0157] See also Fig.25C , which is a projection view of another first electrode and a second electrode provided in an embodiment of the present application. In a plane perpendicular to the length direction of the pen tail module, the projection of the body of the second electrode 22C is a "cross" shape, and the projection of the body of the first electrode 21C is a circular ring, and is sleeved outside the body of the second electrode 22C.

[0158] See also Fig.25D , which is another projection view of the first electrode and the second electrode provided in an embodiment of the present application. In a plane perpendicular to the length direction of the pen tail module, the projection of the body of the second electrode 22D is a "cross" shape, and the projection of the body of the first electrode 21D is four arc segments spaced circumferentially, and the four protruding ends of the "cross"-shaped second electrode 22D are respectively located between two adjacent arc segments of the body of the first electrode 21D. Of course, in other possible implementation schemes, the projection of the body of the second electrode 22D can also be other numbers of protruding ends arranged radially from the center to the outside, and accordingly, the projection of the body of the first electrode 21D is other numbers of arc segments spaced circumferentially, and each protruding end is respectively located between two adjacent arc segments of the body of the first electrode 21D.

[0159] Among the above four electrode configurations, Fig.25B and Fig.25C In the described implementation, the second electrode 22B for transmitting the coding signal is located inside the annular first electrode 21C body, and the coding signal is relatively small; Fig.25D In the described implementation, the second electrode 22B for transmitting the coding signal has four extended ends respectively located between two adjacent arc segments of the body of the first electrode 21D, which can enhance the coding signal; Fig.25A In the described implementation scheme, the annular second electrode 22A body is sleeved on the outside of the first electrode 21A body, which can form a strong coding signal in the entire circumference, which is the optimal design.

[0160] In addition, the two electrodes may be made of metal materials. In other implementations, the surfaces of the first electrode and the second electrode opposite to the pen cap may be coated with a metal film layer, for example but not limited to by using a metal film plating process, as long as the area and relative position of the first electrode and the second electrode shown in the projection view are met.

[0161] Based on the aforementioned pen tail module, the present application embodiment also provides a stylus control method, which can be applied to Figure 1 See the scene shown. Fig.26 , which is a flowchart of a stylus control method provided by an embodiment of the present application. Fig.26 As shown, the stylus control method includes:

[0162] Step S2601: when the end of the stylus pen approaches or contacts a contact object, an identification signal generated by coupling between the first electrode and the contact object is obtained.

[0163] Based on the contact objects of different materials, the first electrode can be coupled to generate different identification signals. Taking the user's finger as an example, when the finger approaches or contacts the first electrode 21 of the pen tail module 10, the operating finger is equivalent to the other electrode of the capacitor, and the two are coupled to form a first capacitor and generate a first capacitance value. Taking the touch screen of an electronic device as an example, when the tail end of the pen tail module 10 approaches or contacts the touch screen 201, the two are coupled to form a second capacitor and generate a second capacitance value. Based on the first capacitance value and the second capacitance value, a corresponding identification signal is obtained.

[0164] Step S2602: When the identification signal is a first identification signal, execute the first function; when the identification signal is a second identification signal, execute the second function.

[0165] Taking the first function as a key function and the second function as an eraser function as an example, when the first contact object is a finger of the user, the recognition signal may be a first recognition signal for executing the key function, and executing the first function may include step 2603; when the second contact object is a touch screen on the electronic device side, the recognition signal may be a second recognition signal for executing the eraser function, and executing the second function may include step 2604.

[0166] Step 2603: When the identification signal is the first identification signal, the pressure data collected by the pressure sensor is obtained, and the pressure data can be the first pressure data, and the first control signal for executing the first function is output according to the first pressure data. In a specific implementation, the key detection is performed by obtaining the pressure data collected by the pressure sensor. When the pressure data indicates that the current operation is a key operation, the first control signal for executing the key function is output, that is, the key event is output. The first control signal is used for the electronic device to execute the key function (first function). When the pressure data does not reach the key operation threshold, the key event is released.

[0167] Step 2604: when the identification signal is the first identification signal, the coding signal is output by the second electrode, and the pressure data collected by the pressure sensor is obtained, and the pressure data can be the second pressure data, and the second control signal for performing the second function is output according to the second pressure data, that is, the eraser event is output, and the second control signal is used for the electronic device to perform the second function (eraser function). When the pressure data does not reach the eraser operation threshold value, the eraser event is released.

[0168] Optionally, in order to avoid misoperation, step S2600 may be performed before obtaining the identification signal generated by the coupling between the first electrode and the contact object.

[0169] Step S2600: Execute step S2601 on the condition that the pressure sensor collects pressure data. In a specific implementation, before obtaining the identification signal generated by the coupling of the first electrode and the contact object, the pressure sensor can collect third pressure data; if the third pressure data meets the preset conditions, the step of obtaining the identification signal generated by the coupling of the first electrode and the contact object is executed. In other words, when the pen tail module function is enabled, it is conditional on the pen tail applying a pressing force and coupling with the contact object to generate a corresponding identification signal, so that the first function or the second function can be avoided from being triggered by mistake.

[0170] Alternatively, in order to reduce the power consumption of the product, a second control signal for executing the second function is output when the pressure data is greater than the trigger threshold of the second function. Taking the eraser function as an example, when the tail of the pen touches or approaches the touch screen, the eraser function can only be awakened by erasing forcefully. It is in the off state in other scenarios, thereby reducing the power consumption of the product.

[0171] In addition to the aforementioned pen tail module, this embodiment also provides a touch pen including the pen tail module. Figure 2 In the stylus pen 100 shown, the pen tail module 10 is located at the tail end of the pen shaft 20. It should be understood that the pen tip module 30 and other functional components of the stylus pen 100 can be implemented by those skilled in the art using existing technologies, so they will not be described in detail herein.

[0172] The stylus provided by this embodiment has both button function and eraser function, which can effectively improve the user experience and meet the needs of various application scenarios. It should be noted that, in addition to the tablet computer described in the above embodiment, the electronic device 200 in the embodiment of the present application can also be a smart phone, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device, a vehicle-mounted device or a wearable device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc., a mobile terminal or a fixed terminal with a touch screen. The form of the terminal device is not specifically limited in the embodiment of the present application.

[0173] It should be understood that other functions of the electronic device are not the core invention of the present application, and those skilled in the art can implement them according to the prior art, so they will not be described in detail herein.

[0174] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pen tail module, used to adapt to the pen holder of a stylus pen, characterized in that: The pen tail module comprises an elastic pen cap, a first electrode and a second electrode; The pen cap is used to be fixedly connected to the pen body, the first electrode and the second electrode are arranged on the pen cap at intervals, and the first electrode, the second electrode and the pen cap form a pen cap assembly; The first electrode is used to couple with the contact object to generate an identification signal, when the contact object is a first contact object, the identification signal is a first identification signal for performing a first function, and when the contact object is a second contact object, the identification signal is a second identification signal for performing a second function; wherein the first contact object and the second contact object are made of different materials, and the first identification signal is different from the second identification signal; The second electrode is used to transmit a coding signal.

2. The pen tail module according to claim 1, characterized in that: The pen tail module also includes a pressure sensor and a pen tail bracket. The pressure sensor is fixed on the pen tail bracket and is used to detect the pressure applied to the pen tail module.

3. The pen tail module according to claim 2, characterized in that: The pen tail module also includes a sensor FPC, the pressure sensor is integrated on the sensor FPC, and the sensor FPC includes a first end and a second end; the first electrical connection part of the first electrode and the second electrical connection part of the second electrode are respectively electrically connected to the electrical connection port of the first end of the sensor FPC; the electrical connection port of the first end and the pressure sensor are respectively connected to the second end through the wires in the sensor FPC substrate, and the electrical connection port of the second end of the sensor FPC is used to be electrically connected to the control unit of the stylus.

4. The pen tail module according to claim 3, characterized in that: The electrical connection port of the first end is the surface bright copper on the sensor FPC.

5. The pen tail module according to claim 3 or 4, characterized in that: The pen tail module also includes a support member and a deformation bearing sheet, the deformation bearing sheet is fixed on the pen tail bracket, and the pressure sensor is located on the deformation bearing sheet; the support member is located between the pen cap assembly and the deformation bearing sheet, and the support member is respectively abutted against the pen cap assembly and the deformation bearing sheet.

6. The pen tail module according to claim 5, characterized in that: The pen cap assembly and the support member are provided with a force transmission convex portion on one and a force transmission concave portion on the other. The force transmission convex portion can be partially inserted into the force transmission concave portion and abut against the force transmission concave portion.

7. The pen tail module according to claim 6, characterized in that: The force transmission protrusion is arranged on the pen cap assembly, and the first electrical connection portion of the first electrode and the second electrical connection portion of the second electrode are respectively located on two sides of the force transmission protrusion.

8. The pen tail module according to any one of claims 5 to 7, characterized in that: The two ends of the deformation bearing sheet include mounting portions bent toward the pen tail bracket. The pen tail bracket is provided with a notch, and the mounting portions are inserted and fixed in the notch.

9. The pen tail module according to any one of claims 5 to 8, characterized in that: The support member includes a pressing portion abutting against the deformation bearing sheet, the pressing portion is provided with a metal transition member, and the metal transition member includes a pressing surface arranged opposite to the force-bearing surface of the deformation bearing sheet.

10. The pen tail module according to claim 9, characterized in that: The metal adapter and the main body of the support member are formed by injection molding.

11. The pen tail module according to any one of claims 5 to 7, characterized in that: The support member and the deformation bearing sheet are integrally formed.

12. The pen tail module according to any one of claims 5 to 11, characterized in that: The first end of the sensor FPC is bent to the side of the support member opposite to the first electrode and the second electrode; the first electrical connection portion of the first electrode and the second electrical connection portion of the second electrode are electrically connected to the corresponding surface bright copper on the first end of the sensor FPC through conductive foam.

13. The pen tail module according to any one of claims 5 to 12, characterized in that: It also includes a limiting portion, which can limit the pressing stroke of the pen cap assembly.

14. The pen tail module according to claim 13, characterized in that: The limiting portion is a fixed limiting baffle, and the supporting member includes a limiting surface. In the pressing direction of the pen cap assembly, there is a distance between the limiting surface of the supporting member and the limiting baffle.

15. The pen tail module according to claim 13, characterized in that: The limiting portion is a fixed limiting baffle, and the pen cap assembly includes a limiting surface. In the pressing direction of the pen cap assembly, there is a distance between the limiting surface of the pen cap assembly and the limiting baffle.

16. The pen tail module according to claim 13, characterized in that: The limiting portion is arranged in the middle of the pen tail bracket, and in the pressing direction of the pen cap assembly, there is a distance between the limiting portion and the deformation bearing sheet, or there is a distance between the limiting portion and the pressure sensor.

17. The pen tail module according to any one of claims 1 to 16, characterized in that: The pen cap assembly further comprises an electrode bracket, the first electrode and the second electrode are mounted on the electrode bracket, and the force transmission protrusion of the pen cap assembly is formed on the electrode bracket.

18. The pen tail module according to claim 17, characterized in that: The body of the first electrode and the body of the second electrode are located at opposite sides of the electrode bracket and the pen cap, and the first electrical connection portion of the first electrode and the second electrical connection portion of the second electrode both extend out of the electrode bracket.

19. The pen tail module according to claim 17 or 18, characterized in that: The first electrode, the second electrode and the electrode support of the electrode assembly are formed by injection molding.

20. The pen tail module according to any one of claims 1 to 16, characterized in that: The first electrode, the second electrode and the pen cap of the pen cap assembly are formed by injection molding.

21. The pen tail module according to claim 20, characterized in that: The force transmission protrusion of the pen cap assembly is formed on the first electrode, or on the second electrode.

22. The pen tail module according to any one of claims 17 to 21, characterized in that: In a plane perpendicular to the length direction of the pen tail module, the projection of the body of the first electrode is circular, and the projection of the body of the second electrode is annular and is sleeved on the outside of the body of the first electrode.

23. The pen tail module according to any one of claims 17 to 21, characterized in that: In a plane perpendicular to the length direction of the pen tail module, the projection of the body of the second electrode is circular, and the projection of the body of the first electrode is annular and is sleeved on the outside of the body of the second electrode.

24. The pen tail module according to any one of claims 17 to 21, characterized in that: In a plane perpendicular to the length direction of the pen tail module, the projection of the body of the second electrode is in a "cross" shape, and the projection of the body of the first electrode is in a circular ring shape and is sleeved on the outside of the body of the second electrode.

25. The pen tail module according to any one of claims 17 to 21, characterized in that: In a plane perpendicular to the length direction of the pen tail module, the projection of the body of the second electrode is a "cross" shape, the projection of the body of the first electrode is four arc segments arranged at circumferential intervals, and the four extending ends of the second electrode are respectively located between two adjacent arc segments of the body of the first electrode.

26. The pen tail module according to any one of claims 1 to 25, characterized in that: The pen cap comprises a pressing portion and a connecting portion, wherein the pressing portion is located at the middle portion of the pen cap, the connecting portion is located at the peripheral edge of the pen cap, and the outer peripheral surface of the connecting portion is provided with a glue groove.

27. A touch pen, characterized in that: It comprises a pen holder and a pen tail module as described in any one of claims 1 to 26, wherein the pen tail module is fixedly arranged at the tail of the pen holder, and a pen cap of the pen tail module is fixedly connected to the pen holder.

28. The stylus pen according to claim 27, characterized in that: The pen holder is a hollow structure, and the pen cap is glued and fixed to the inner wall of the pen holder.

29. A touch control system, comprising an electronic device with a touch screen and a touch pen compatible with the electronic device, characterized in that: The stylus pen is the stylus pen according to claim 27 or 28.

30. A method for controlling a touch pen, characterized in that: The stylus pen comprises a pen tail module according to any one of claims 1 to 26, and the control method of the stylus pen comprises the following steps: Acquiring an identification signal generated by coupling the first electrode with the contact object; When the identification signal is a first identification signal, a first function is executed; when the identification signal is a second identification signal, a second function is executed.

31. The method for controlling a touch pen according to claim 30, characterized in that: The executing the first function includes: acquiring first pressure data collected by a pressure sensor, and outputting a first control signal for executing the first function according to the first pressure data.

32. The method for controlling a touch pen according to claim 31, characterized in that: The executing the second function includes: outputting a coding signal through the second electrode, acquiring second pressure data collected by the pressure sensor, and outputting a second control signal for executing the second function according to the second pressure data.

33. The control method of the touch pen according to claim 31 or 32, characterized in that: Before acquiring the identification signal generated by the coupling between the first electrode and the contact object, the pressure sensor collects third pressure data; If the third pressure data meets the preset condition, the step of acquiring an identification signal generated by the coupling between the first electrode and the contact object is performed.

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