Electronic pen and electronic equipment system

Abstract

The invention provides an electronic pen and an electronic equipment system. The electronic pen comprises a pen shell; the pen point is arranged at one end of the pen shell and is used for executing a first function based on wireless communication with a touch screen of the electronic equipment; the pen cap is arranged at the other end of the pen shell and used for executing a second function based on touch induction of a touch screen of the electronic equipment, and the second function is different from the first function.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic devices, and more particularly to an electronic pen and an electronic device system. Background Art

[0002] With the continuous improvement of the functions of electronic devices, the interactive function between an electronic pen and an electronic device, such as writing and drawing on the touch screen of the electronic device, brings a better user experience to the user.

[0003] Electronic pens include active capacitive pens, passive capacitive pens, electromagnetic pens, etc. The active capacitive pen has a writing function and an erasing function. The writing function and the erasing function of the active capacitive pen are usually implemented by the structure of an active electrode, which is complex in structure and high in cost. The passive capacitive pen has a writing function but does not have an erasing function. Summary of the Invention

[0004] In view of the above problems, the present disclosure provides an electronic pen and an electronic device system.

[0005] A first aspect of the present disclosure provides an electronic pen, comprising:

[0006] A pen housing;

[0007] A nib, disposed at one end of the pen housing, for performing a first function based on wireless communication with the touch screen of an electronic device;

[0008] A pen cap, disposed at the other end of the pen housing, for performing a second function based on touch sensing with the touch screen of the electronic device, the second function being different from the first function.

[0009] According to an embodiment of the present disclosure, the electronic pen further includes a circuit board disposed inside the pen housing, and the nib is communicatively connected to the circuit board;

[0010] The pen cap is connected to the ground wire of the circuit board for realizing touch sensing detection of the pen cap by the touch screen.

[0011] According to an embodiment of the present disclosure, the electronic pen further includes a carrier disposed inside the pen housing and located at the other end of the pen housing;

[0012] The pen cap is detachably connected to the carrier, and the pen cap is connected to the ground wire of the circuit board through the carrier.

[0013] According to an embodiment of the present disclosure, the pen cap includes:

[0014] A first conductive part, detachably connected to the carrier;

[0015] The second conductive part covers a partial area of the first conductive part and is arranged in contact with the end face of the pen shell, and the second conductive part is used for contacting the touch screen;

[0016] Wherein, the elastic modulus of the second conductive part is greater than that of the first conductive part.

[0017] According to an embodiment of the present disclosure, a boss is provided at one end of the carrier away from the circuit board, the carrier is provided with a slot, the slot extends to the end face of the boss, and the first conductive part is inserted into the slot;

[0018] The first conductive part includes:

[0019] A first part that abuts against the wall surface of the slot;

[0020] A second part that abuts against the circumferential surface of the boss.

[0021] According to an embodiment of the present disclosure, the first part includes:

[0022] A rod body;

[0023] A raised part provided on the surface of the rod body;

[0024] When the first part and the carrier are in an inserted state, the rod body has a clearance fit with the slot, and the raised part has an interference fit with the slot.

[0025] According to an embodiment of the present disclosure, the raised part is strip-shaped, and the extending direction of the raised part is parallel to the axis direction of the slot;

[0026] A plurality of the raised parts are arranged at intervals on the surface of the rod body.

[0027] According to an embodiment of the present disclosure, a bracket is provided inside the pen shell, and the bracket is used for placing a power supply unit;

[0028] The electronic pen further includes a flexible circuit board, and a partial section of the flexible circuit board is arranged in contact with the surface of the bracket;

[0029] One end of the flexible circuit board is connected to the ground wire of the circuit board, and the other end is electrically connected to the carrier.

[0030] According to an embodiment of the present disclosure, the electronic pen further includes an elastic conductive part;

[0031] The bracket has a first contact surface facing the carrier, the carrier has a second contact surface facing the bracket, and the other end of the flexible circuit board and the elastic conductive part are located between the first contact surface and the second contact surface;

[0032] When the elastic conductive member is in an elastically deformed state, the other end of the flexible circuit board abuts against the first contact surface, and the elastic conductive member abuts against the second contact surface.

[0033] A second aspect of the present disclosure provides an electronic device system, including:

[0034] An electronic device, including a touch screen;

[0035] An electronic pen, configured to perform a first function or a second function on the touch screen;

[0036] Wherein, the electronic pen includes:

[0037] A pen casing;

[0038] A pen tip, provided at one end of the pen casing, configured to perform the first function based on wireless communication with the touch screen to form a handwriting on the touch screen;

[0039] A pen cap, provided at the other end of the pen casing, configured to perform a second function based on touch sensing with the touch screen to erase the handwriting on the touch screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] To more fully understand the present disclosure and its advantages, reference will now be made to the following description taken in conjunction with the accompanying drawings, in which:

[0041] Figure 1 Schematically shows a schematic structural diagram of an electronic pen according to an embodiment of the present disclosure;

[0042] Figure 2 Schematically shows a partial cross-sectional view of an electronic pen according to an embodiment of the present disclosure;

[0043] Figure 3 Schematically shows a second partial cross-sectional view of an electronic pen according to an embodiment of the present disclosure;

[0044] Figure 4 Schematically shows a schematic diagram of the pen cap separated from the pen casing according to an embodiment of the present disclosure;

[0045] Figure 5 Schematically shows a partial schematic diagram of the pen cap separated from the pen casing according to an embodiment of the present disclosure;

[0046] Figure 6 Schematically shows a schematic structural diagram of the pen cap according to an embodiment of the present disclosure;

[0047] Figure 7 Schematically shows a schematic structural diagram of an electronic device system according to an embodiment of the present disclosure;

[0048] Reference Numerals:

[0049] 100: Electronic pen; 10: Pen shell; 20: Tip; 30: Cap; 31: First conductive part; 311: First part; 3111: Rod body; 3112: Protruding part; 312: Second part; 32: Second conductive part; 40: Circuit board; 50: Carrier; 51: Boss; 52: Slot; 53: Receiving groove; 60: Bracket; 61: First support part; 62: Second support part; 70: Power supply unit; 80: Flexible circuit board; 81: First bending part; 82: Straight part; 83: Second bending part; 90: Elastic conductive part; 200: Electronic device. Detailed implementation

[0050] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present disclosure. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present disclosure.

[0051] The terms used herein are merely for describing specific embodiments and are not intended to limit the present disclosure. The terms "including", "comprising", etc. used herein indicate the presence of the described features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0052] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0053] An electronic pen is usually used in conjunction with an electronic device. As an input device, information can be input into the electronic device through the electronic pen. The electronic device includes a touch screen, and text, drawings, markings, etc. can be input on the touch screen through the electronic pen.

[0054] In the related art, the structure of an active capacitive pen is complex and the manufacturing cost is relatively high. For a passive capacitive pen, the manufacturing cost is low, but the writing accuracy is not high and it usually does not have an erasing function.

[0055] The present disclosure provides an electronic pen. By simplifying the internal structure of the electronic pen, the electronic pen not only has writing and erasing functions, but also can reduce the manufacturing cost of the electronic pen.

[0056] The following will be combined with Figures 1 to 7 Describe the electronic pen 100 and the electronic device system of the present disclosure.

[0057] In the embodiments of the present disclosure, as Figure 1As shown in the figure, the electronic pen 100 includes a pen shell 10, a pen tip 20, and a pen cap 30. The pen tip 20 is provided at one end of the pen shell 10 and executes a first function based on wireless communication with the touch screen of the electronic device. The pen cap 30 is provided at the other end of the pen shell 10 and executes a second function based on touch sensing with the touch screen of the electronic device, and the second function is different from the first function.

[0058] The electronic pen 100 includes a pen shell 10, a pen tip 20, and a pen cap 30. The pen shell 10 is in a cylindrical shape, and the pen tip 20 and the pen cap 30 are respectively installed at opposite ends of the pen shell 10. The pen tip 20 is fixedly connected or detachably connected to the pen shell 10, and the pen tip 20 and the pen shell 10 can be connected by connection methods such as screwing, clamping, and plugging. The pen cap 30 is fixedly connected or detachably connected to the pen shell 10, and the pen cap 30 and the pen shell 10 can be connected by connection methods such as screwing, clamping, and plugging.

[0059] The electronic device includes a mobile phone, a tablet computer, a laptop computer, etc. The electronic device has a touch screen. By sliding the pen tip 20 on the touch screen, a first function can be executed, and the first function is a writing function; by sliding the pen cap 30 on the touch screen, a second function can be executed, and the second function is an erasing function. When the Bluetooth function of the electronic device is turned on, the electronic pen 100 can achieve wireless communication with the electronic device through a Bluetooth connection method.

[0060] The electronic pen 100 further includes a circuit board, a sensor, etc. The circuit board and the sensor are provided inside the pen shell 10. A signal circuit, a ground wire, a sensor, etc. are provided on the circuit board. When the pen tip 20 slides on the touch screen and the pen tip 20 receives the signal from the touch screen, a corresponding downlink code signal is sent based on the pen writing protocol, and this signal carries data information such as pressure sensing. Based on this information, the touch screen uploads data information such as positioning and pressure sensing to the application layer to achieve writing functions such as clicking and drawing lines. The pen tip 20 realizes the writing function on the touch screen through the principle of active capacitance, and the material of the pen tip 20 needs to take into account both conductivity and flexibility.

[0061] The pen tip 20 realizes the writing function on the touch screen through the principle of active capacitance. The radial dimension of the pen tip 20 can be set to be relatively small, so the writing sensitivity is high, and there is no easy occurrence of disconnection, which is beneficial to achieving high-precision writing.

[0062] The pen cap 30 is made of a conductive material. The conductive material includes polyamide, polyoxymethylene, polycarbonate, silicone rubber, thermoplastic polyurethane elastomer, thermoplastic elastomer, etc.

[0063] The user holds the electronic pen 100. When the pen cap 30 slides on the touch screen, the touch screen can detect the change in capacitance value for positioning and upload the erasure information to the application layer to implement the erasure function. When the user's hand slides on the touch screen and the pen cap 30 slides on the touch screen, the change in capacitance value detected by the touch screen is different. Therefore, when the pen cap 30 slides on the touch screen, the erasure function can be implemented. For the erasure function of the pen cap 30, there is no need to set a signal circuit in the pen case 10. The pen cap 30 realizes the erasure function on the touch screen through the passive capacitance principle. Compared with the erasure function implemented by the active capacitance principle, the internal structure is simplified, which is beneficial to reducing the manufacturing cost.

[0064] In an embodiment of the present disclosure, the nib 20 realizes the writing function on the touch screen through wireless communication with the touch screen of the electronic device, and the pen cap 30 realizes the erasure function on the touch screen through touch sensing with the touch screen. On the premise of having the writing function and the erasure function, the structure of the electronic pen 100 is simplified, which is beneficial to reducing the manufacturing cost.

[0065] In an embodiment of the present disclosure, as Figure 2 and Figure 3 shown, the electronic pen 100 further includes a circuit board 40. The circuit board 40 is disposed in the pen case 10, and the nib 20 is communicatively connected to the circuit board 40. The pen cap 30 is connected to the ground wire of the circuit board 40 for realizing the touch sensing detection of the pen cap 30 by the touch screen.

[0066] The electronic pen 100 further includes a circuit board 40, a battery, etc. A bracket 60 is provided in the pen case 10. The bracket 60 is used to mount the circuit board 40, the battery, etc. The shape of the bracket 60 is not specifically limited, as long as it is convenient to mount components such as the circuit board 40 and the battery. The circuit board 40 and the battery are arranged in sequence along the axis of the pen case 10. The circuit board 40 is close to the nib 20, and the battery is close to the pen cap 30. The circuit board 40 is generally located in the middle area of the pen case 10, that is, the position where the user holds the pen case 10 is opposite to the position where the circuit board 40 is located.

[0067] The circuit board 40 is provided with signal lines and ground wires. The nib 20 is communicatively connected to the signal lines, and the ground wire ensures the reliability and stability of the circuit.

[0068] In some embodiments, the electronic pen 100 further includes a wire. One end of the wire is connected to the ground wire, and the other end is connected to the pen cap 30, thereby realizing the grounding connection between the pen cap 30 and the circuit board 40.

[0069] In some embodiments, the electronic pen 100 further includes a flexible circuit board 80. One end of the flexible circuit board 80 is connected to the ground wire, and the other end is connected to the pen cap 30, thereby realizing the grounding connection between the pen cap 30 and the circuit board 40.

[0070] The user holds the electronic pen 100, and the holding area roughly corresponds to the area where the circuit board 40 is located within the pen shell 10. The pen cap 30 is grounded to the circuit board 40. When the pen cap 30 slides on the touch screen, the touch screen can detect a large capacitance change amount, thereby identifying an erasure signal and further realizing the erasure of the handwriting on the touch screen. It can be understood that the capacitance change amounts detected by the touch screen in the two cases of the pen cap 30 sliding on the touch screen and a finger sliding on the touch screen are different.

[0071] In an embodiment of the present disclosure, the circuit board 40 is disposed within the pen shell 10. The pen tip 20 is connected to the signal line on the circuit board 40 to achieve the communication connection between the pen tip 20 and the circuit board 40. The pen cap 30 is connected to the ground wire on the circuit board 40. The user holds the electronic pen 100, and the holding area is opposite to the area where the circuit board 40 is located. When the pen cap 30 slides on the touch screen, the touch screen can reliably detect the induction amount when the pen cap 30 slides, and then erase the handwriting in the corresponding area. On the premise of realizing the erasure function, the internal structure of the electronic pen is simplified.

[0072] In an embodiment of the present disclosure, as Figures 2 to 5 shown, the electronic pen 100 further includes a carrier 50. The carrier 50 is disposed within the pen shell 10 and is located at the other end of the pen shell 10. The pen cap 30 is detachably connected to the carrier 50, and the pen cap 30 is grounded to the circuit board 40 through the carrier 50.

[0073] Define the two opposite ends of the pen shell 10 as the first end and the second end respectively. The pen tip 20 is installed at the first end of the pen shell 10, and the carrier 50 is installed at the second end of the pen shell 10. The carrier 50 can be connected to the pen shell 10 by an adhesive method. The carrier 50 is in an approximate columnar shape. The carrier 50 provides an installation basis for the pen cap 30, facilitating the installation and disassembly of the pen cap 30.

[0074] The carrier 50 has conductivity and a certain hardness. The materials of the carrier 50 include metal materials, alloy materials, carbon materials, semiconductor materials, etc. The carrier 50 has conductivity to ensure the reliability of the electrical connection between the carrier 50 and the pen cap 30. The carrier 50 has a certain hardness and can provide effective support for the pen cap 30 to ensure that the pen cap 30 does not show a concave phenomenon during the sliding process on the touch screen.

[0075] The pen cap 30 and the carrier 50 can be connected by connection methods such as screwing, clamping, plugging, etc. The carrier 50 can be connected to the ground wire of the circuit board 40 through a wire, or the carrier 50 can also be connected to the ground wire of the circuit board 40 through a flexible circuit board 80.

[0076] After the pen cap 30 is used for a period of time, wear may occur in some areas. By replacing the pen cap 30, it is ensured that the handwriting can be accurately erased without discarding the entire electronic pen 100, thus improving the service life of the electronic pen 100.

[0077] In some embodiments, the carrier 50 is connected to the pen shell 10 by an adhesive method. The outer diameter size of the carrier 50 is adapted to the inner diameter size of the pen shell 10. The carrier 50 is placed inside the pen shell 10, and glue is applied around the end face of the carrier 50 to realize the connection between the carrier 50 and the pen shell 10. The carrier 50 and the pen shell 10 are connected by glue, with a firm connection, which can prevent the carrier 50 from being randomly disassembled and protect the electronic pen 100 from being easily damaged.

[0078] In some embodiments, the carrier 50 is in the shape of a column. The carrier 50 is provided with internal threads, and the pen cap 30 is provided with external threads adapted to the internal threads. The pen cap 30 and the carrier 50 are connected by a screwing method, which is beneficial to the convenience of installation and disassembly of the pen cap 30. The pen cap 30 and the carrier 50 are screwed together, and the pen cap 30 and the carrier 50 have an appropriate contact area, which can ensure the reliability of the electrical connection between the pen cap 30 and the carrier 50.

[0079] In some embodiments, the carrier 50 is in the shape of a column. The carrier 50 is provided with a slot 52, and the pen cap 30 is provided with a plugging portion adapted to the slot 52. The pen cap 30 and the carrier 50 are connected by a plugging method, which is beneficial to the convenience of installation and disassembly of the pen cap 30. The depth and radial dimension of the slot 52 are set according to actual requirements. The pen cap 30 and the carrier 50 are plugged together, and the pen cap 30 and the carrier 50 have an appropriate contact area, which can ensure the reliability of the electrical connection between the pen cap 30 and the carrier 50.

[0080] In some embodiments, the carrier 50 is in the shape of a column. The carrier 50 is provided with a plugging portion, and the pen cap 30 is provided with a slot adapted to the plugging portion. The pen cap 30 and the carrier 50 are connected by a plugging method, which is beneficial to the convenience of installation and disassembly of the pen cap 30. The pen cap 30 and the carrier 50 are plugged together, and the pen cap 30 and the carrier 50 have an appropriate contact area, which can ensure the reliability of the electrical connection between the pen cap 30 and the carrier 50.

[0081] In the embodiments of the present disclosure, the carrier 50 is installed at the second end of the pen shell 10. The carrier 50 is connected to the ground wire of the circuit board 40. The pen cap 30 is detachably connected to the carrier 50, which is beneficial to the convenience of installation and disassembly of the pen cap 30. The electronic pen 100 can be configured with multiple pen caps 30. When the pen cap 30 is worn, it is convenient to replace the pen cap 30, thus improving the service life of the electronic pen 100.

[0082] In the embodiments of the present disclosure, as Figures 2 to 5As shown in the figure, the pen cap 30 includes a first conductive part 31 and a second conductive part 32. The first conductive part 31 is detachably connected to the carrier 50. The second conductive part 32 covers a partial area of the first conductive part 31 and is arranged in contact with the end face of the pen shell 10. The second conductive part 32 is used for contacting the touch screen. Among them, the elastic modulus of the second conductive part 32 is greater than that of the first conductive part 31.

[0083] In some embodiments, the pen cap 30 is in the shape of an approximate sphere, that is, the surface of the pen cap 30 is an approximate spherical surface. When the electronic pen 100 slides on the touch screen at a certain angle, the approximate spherical pen cap 30 enables the pen cap 30 to have a large contact area with the touch screen, which is beneficial for high-precision and high-efficiency erasing.

[0084] The pen cap 30 includes a first conductive part 31 and a second conductive part 32. The first conductive part 31 and the second conductive part 32 are prepared from conductive materials with different elastic moduli. The first conductive part 31 is detachably connected to the carrier 50 to ensure the convenience of installation and disassembly of the pen cap 30; the second conductive part 32 covers the outer surface of the first conductive part 31, and the second conductive part 32 is used for contacting the touch screen.

[0085] The first conductive part 31 is prepared from a hard rubber material. The material of the first conductive part 31 includes resin materials such as polyamide, polyoxymethylene, and polycarbonate, so that the first conductive part 31 has appropriate elasticity and hardness. The second conductive part 32 is prepared from a soft rubber material. The material of the second conductive part 32 includes soft materials such as silicone rubber, thermoplastic polyurethane elastomer, and thermoplastic elastomer, so that the second conductive part 32 has appropriate elasticity.

[0086] The elastic modulus of the second conductive part 32 is greater than that of the first conductive part 31, and the hardness of the first conductive part 31 is greater than that of the second conductive part 32. The first conductive part 31 has a greater hardness and can provide appropriate support force for the second conductive part 32 to avoid problems such as collapse and deformation of the second conductive part 32 during the erasing process, which may affect the erasing effect. The second conductive part 32 has greater elasticity, that is, the second conductive part 32 has appropriate softness, and can avoid scratching the touch screen during the erasing process.

[0087] The pen cap 30 is prepared from a hard rubber material and a soft rubber material. During the erasing process, it can not only provide appropriate support force to ensure the reliability of erasing, but also avoid scratching the touch screen.

[0088] In some embodiments, the first conductive part 31 and the second conductive part 32 are connected by an adhesive bonding method. That is, after the first conductive part 31 and the second conductive part 32 are respectively prepared by an injection molding process, an adhesive is applied to the surfaces where the first conductive part 31 and the second conductive part 32 are in contact to achieve the connection between the first conductive part 31 and the second conductive part 32.

[0089] In some embodiments, the pen cap 30 is prepared by a bi-injection molding process. The pen cap 30 includes an integrally formed first conductive portion 31 and a second conductive portion 32.

[0090] In some embodiments, a partial area of the first conductive portion 31 is in an approximate spherical shape, and the second conductive portion 32 covers the spherical portion of the first conductive portion 31. The carrier 50 is provided with a slot 52, and the first conductive portion 31 is provided with a plugging portion. The first conductive portion 31 is plugged and connected with the carrier 50. During the installation process of the pen cap 30, the plugging portion is aligned with the slot 52, and the top end of the pen cap 30 is pressed to apply pressure to the pen cap 30. The hardness of the first conductive portion 31 enables the pen cap 30 not to be easily deformed under pressure, ensuring that the pen cap 30 can be smoothly installed in place.

[0091] The second conductive portion 32 is arranged in a fitting manner with the end face of the pen shell 10. After the pen cap 30 is installed in place, the end face of the second conductive portion 32 is in contact with the end face of the pen shell 10, ensuring the sealing performance at the connection between the second conductive portion 32 and the pen shell 10 and preventing external dust and other impurities from entering the pen shell 10 along the position where the second conductive portion 32 is docked with the pen shell 10.

[0092] In the embodiments of the present disclosure, the pen cap 30 includes a first conductive portion 31 and a second conductive portion 32. The pen cap 30 is prepared by a hard rubber material and a soft rubber material. The first conductive portion 31 has an appropriate hardness to ensure the reliability of erasing and the smoothness of installation. The second conductive portion 32 has an appropriate softness to effectively avoid scratching the touch screen.

[0093] In the embodiments of the present disclosure, as Figure 2 、 Figure 3 and Figure 5 shown, a boss 51 is provided at one end of the carrier 50 away from the circuit board 40. The carrier 50 is provided with a slot 52, and the slot 52 extends to the end face of the boss 51. The first conductive portion 31 is inserted into the slot 52. The first conductive portion 31 includes a first part 311 and a second part 312. The first part 311 abuts against the wall surface of the slot 52; the second part 312 abuts against the circumferential surface of the boss 51.

[0094] According to different shapes and functions, the first conductive portion 31 is divided into a first part 311 and a second part 312. The first part 311 is in a columnar shape and is used for connecting with the carrier 50; the second part 312 is in an approximate spherical shape and is used for connecting with the second conductive portion 32. The first part 311 and the second part 312 are integrally formed.

[0095] In some embodiments, the carrier 50 is in the shape of an approximate column. The carrier 50 has two opposite end faces, which are defined as the first end face and the second end face respectively. The first end face is close to the circuit board 40, and the second end face is far from the circuit board 40. A boss 51 is formed by protruding from the second end face. The height dimension and cross-sectional dimension of the boss 51 are set according to actual requirements. The cross-section of the boss 51 can be gradually changing, that is, from the second end face towards the direction gradually away from the second end face, the cross-sectional area of the boss 51 gradually decreases. The second end face is flush or nearly flush with the end face of the pen shell 10. Define the end face of the boss 51 as the third end face. The carrier 50 is provided with a slot 52, and the slot 52 extends to the end face of the boss 51, that is, the slot 52 can extend from the first end face to the third end face.

[0096] The first part 311 is in the shape of a column. The length dimension of the first part 311 is adapted to the groove depth of the slot 52, and the diameter dimension of the first part 311 is adapted to the radial dimension of the slot 52. The second part 312 is in the shape of an approximate sphere. Along the thickness direction of the second part 312, the second part 312 has opposite inner and outer surfaces. The inner surface of the second part 312 is in the shape of an approximate spherical surface. An accommodating space for the boss 51 is formed between the inner surface of the second part 312 and the first part 311. The outer surface of the second part 312 is in the shape of an approximate spherical surface. The thickness of the second part 312 is set according to actual requirements.

[0097] In some embodiments, the second conductive part 32 has a shape similar to that of the second part 312, that is, the inner surface of the second conductive part 32 is in the shape of an approximate spherical surface, and the outer surface of the second conductive part 32 is in the shape of an approximate spherical surface. The thickness of the second conductive part 32 is set according to actual requirements.

[0098] In some embodiments, the thickness of the second part 312 is greater than the thickness of the second conductive part 32. The second part 312 can provide strong support for the second conductive part 32.

[0099] After the first conductive part 31 is inserted into the carrier 50, the first part 311 abuts against the groove wall surface of the slot 52. The first part 311 and the slot 52 are in interference fit to prevent the first conductive part 31 from slipping out of the slot 52 and ensure the reliability of the connection between the first conductive part 31 and the carrier 50.

[0100] The inner surface of the second part 312 abuts against the circumferential surface of the boss 51. The first part 311 contacts the groove wall surface of the slot 52, and the second part 312 contacts the circumferential surface of the boss 51, which is beneficial to increasing the contact area between the first conductive part 31 and the carrier 50. During the process of the pen cap 30 sliding on the touch screen, a part of the wiping force is borne by the first part 311, and a part of the wiping force is borne by the part of the second part 312 that contacts the boss 51, avoiding the problem that the wiping force is only borne by the first part 311, resulting in the fracture of the first conductive part 31. The first part 311 and the second part 312 jointly share the wiping force, increasing the force-bearing area, and ensuring the smoothness of the sliding during the wiping process and the reliability of the erasing function.

[0101] The first conductive part 31 is inserted and connected with the carrier 50. During the process of installing the pen cap 30, the first conductive part 31 is aligned with the slot 52, and pressure is applied to the pen cap 30, then the connection between the pen cap 30 and the carrier 50 can be realized, which is beneficial to the convenience of installation. During the process of disassembling the pen cap 30, pulling force is applied to the pen cap 30, then the separation between the pen cap 30 and the carrier 50 can be realized, which is beneficial to the convenience of disassembly.

[0102] In the embodiment of the present disclosure, a boss 51 is provided at one end of the carrier 50 away from the circuit board 40, the slot 52 extends to the end face of the boss 51, and the first conductive part 31 is inserted and connected with the carrier 50, which is beneficial to the convenience of installing and disassembling the pen cap 30; in addition, the first part 311 abuts against the groove wall surface of the slot 52, and the second part 312 abuts against the circumferential surface of the boss 51, which is beneficial to increasing the contact area between the first conductive part 31 and the carrier 50, avoiding the problem that the first conductive part 31 is fractured due to excessive force in a local area, and at the same time ensuring the smoothness of the sliding during the wiping process and the reliability of the erasing function.

[0103] In the embodiment of the present disclosure, as Figure 6 shown, the first part 311 includes a rod body 3111 and a protrusion 3112, and the protrusion 3112 is provided on the surface of the rod body 3111. When the first part 311 is in an inserted state with the carrier 50, the rod body 3111 is in clearance fit with the slot 52, and the protrusion 3112 is in interference fit with the slot 52.

[0104] In some embodiments, the rod body 3111 is in a columnar shape, and the radial dimension of the rod body 3111 is adapted to the radial dimension of the slot 52.

[0105] In some embodiments, the protrusion 3112 is in an approximate point shape. Along the circumferential direction of the rod body 3111, a plurality of protrusions 3112 are circumferentially spaced on the surface of the rod body 3111. Along the axial direction of the rod body 3111, a plurality of protrusion units are spaced on the surface of the rod body 3111, and each protrusion unit includes a plurality of protrusions 3112 that are circumferentially spaced.

[0106] In some embodiments, the shape of the protruding portion 3112 is approximately long and strip-shaped, and the length of the protruding portion 3112 is less than the length of the rod body 3111. Along the circumferential direction of the rod body 3111, a plurality of protruding portions 3112 are circumferentially spaced and arranged on the surface of the rod body 3111; along the axial direction of the rod body 3111, a plurality of protruding units are spaced and arranged on the surface of the rod body 3111, and each protruding unit includes a plurality of protruding portions 3112 that are circumferentially spaced.

[0107] In some embodiments, the shape of the protruding portion 3112 is approximately long and strip-shaped, and the length of the protruding portion 3112 is similar to the length of the rod body 3111. Along the circumferential direction of the rod body 3111, a plurality of protruding portions 3112 are circumferentially spaced and arranged on the surface of the rod body 3111.

[0108] When the first part 311 is in a plugged state with the carrier 50, there is an appropriate gap between the rod body 3111 and the inner wall surface of the slot 52, that is, the rod body 3111 and the slot 52 are in clearance fit; the protruding portion 3112 abuts against the inner wall surface of the slot 52, that is, the protruding portion 3112 and the slot 52 are in interference fit.

[0109] During the installation of the pen cap 30, only the protruding portion 3112 contacts the inner wall surface of the slot 52, reducing the contact area between the first part 311 and the inner wall surface. During the plugging process, the resistance received is small, which is beneficial to the smoothness of installation. After being installed in place, the protruding portion 3112 and the slot 52 are in interference fit to ensure the firm connection between the first conductive part 31 and the carrier 50.

[0110] When it is necessary to disassemble the pen cap 30, since the contact area between the first part 311 and the inner wall surface of the slot 52 is small, when a pulling force is applied to the pen cap 30, the resistance received is small, which is beneficial to the smoothness of disassembly.

[0111] In the embodiments of the present disclosure, the first part 311 includes a rod body 3111 and a protruding portion 3112 provided on the rod body 3111. The rod body 3111 and the slot 52 are in clearance fit, and the protruding portion 3112 and the slot 52 are in interference fit, so that the first part 311 has an appropriate contact area with the inner wall surface of the slot 52, which is beneficial to the smoothness of installation and disassembly, and at the same time can ensure the firm connection between the pen cap 30 and the carrier 50.

[0112] In the embodiments of the present disclosure, as Figure 6 shown, the protruding portion 3112 is long and strip-shaped, and the extending direction of the protruding portion 3112 is parallel to the axial direction of the slot 52; a plurality of protruding portions 3112 are spaced and arranged on the surface of the rod body 3111.

[0113] The shape of the protrusion 3112 is strip-shaped, and the length dimension of the protrusion 3112 is adapted to the length dimension of the rod body 3111, that is, the length dimension of the protrusion 3112 is close to the length dimension of the rod body 3111.

[0114] The extending direction of the protrusion 3112 is parallel to the axial direction of the slot 52, that is, the length direction of the protrusion 3112 is parallel to the axial direction of the slot 52. A plurality of protrusions 3112 are arranged at intervals in the circumferential direction of the rod body 3111.

[0115] The number of the protrusions 3112 is set according to actual needs. For example, three protrusions 3112 are arranged at intervals in the circumferential direction of the rod body 3111. It can be understood that the number of the protrusions 3112 can be two, four or more than four.

[0116] During the installation of the pen cap 30, the length direction of the protrusion 3112 is consistent with the moving direction of the first part 311. The protrusion 3112 plays a certain guiding role, which is beneficial to further improving the smoothness of the plugging operation. During the removal of the pen cap 30, since the length direction of the protrusion 3112 is consistent with the moving direction of the first part 311, it is beneficial to the convenience of removal.

[0117] The shape of the protrusion 3112 is strip-shaped. After the pen cap 30 is installed in place, the contact area between the first conductive part 31 and the slot 52 extends from the bottom end to the top end of the slot 52, so that the first conductive part 31 and the wall surface of the slot 52 have sufficient contact area. The plurality of protrusions 3112 are arranged at intervals, which is beneficial to the uniform distribution of force and ensures the firm connection between the pen cap 30 and the carrier 50.

[0118] Optionally, the end face of the rod body 3111 is chamfered along its circumferential direction, which is beneficial to further improving the smoothness of the plugging operation.

[0119] In the embodiments of the present disclosure, the shape of the protrusion 3112 is strip-shaped, the extending direction of the protrusion 3112 is parallel to the axial direction of the slot 52, and the length direction of the protrusion 3112 is consistent with the moving direction of the first part 311. During the installation and removal of the pen cap 30, the protrusion 3112 plays a certain guiding role, which is beneficial to the smoothness of installation and removal; in addition, a plurality of protrusions 3112 are arranged at intervals on the surface of the rod body 3111 to ensure the firm connection between the pen cap 30 and the carrier 50.

[0120] In the embodiments of the present disclosure, such as Figure 2 and Figure 3As shown in the figure, a bracket 60 is provided inside the pen shell 10, and the bracket 60 is used to place the power supply unit 70; the electronic pen 100 further includes a flexible circuit board 80, and a part of the flexible circuit board 80 is arranged in a fitting manner on the surface of the bracket 60; one end of the flexible circuit board 80 is connected to the ground wire of the circuit board 40, and the other end is electrically connected to the carrier 50.

[0121] The electronic pen 100 further includes a bracket 60, a power supply unit 70, etc. The bracket 60 is used for installing and fixing the circuit board 40, the power supply unit 70, etc. The shape of the bracket 60 is not specifically limited.

[0122] The power supply unit 70 includes a lithium battery, and the lithium battery is in a columnar shape. The bracket 60 includes a first support part 61 and a second support part 62. The first support part 61 is used for supporting components such as the circuit board 40, and the second support part 62 is used for supporting the lithium battery.

[0123] Since the space inside the pen shell 10 is limited, but there are many components inside the pen shell 10, the carrier 50 is connected to the ground wire of the circuit board 40 through the flexible circuit board 80, and the flexible circuit board 80 can be bent at any angle to avoid the components inside the pen shell 10, so as to realize the grounding connection between the carrier 50 and the circuit board 40. The flexible circuit board 80 and the ground wire on the circuit board 40 can be connected by welding. The flexible circuit board 80 and the ground wire on the circuit board 40 can also be connected by a connector.

[0124] The second support part 62 has a first end close to the circuit board 40 and a second end close to the carrier 50. The flexible circuit board 80 extends along the outer wall surface of the second support part 62 from the first end to the second end of the second support part 62. The flexible circuit board 80 includes a first bending part 81, a straight part 82 and a second bending part 83 connected in sequence. The first bending part 81 is close to the circuit board 40, and the bending shape of the first bending part 81 is such that the flexible circuit board 80 can be stably connected to the ground wire of the circuit board 40. The straight part 82 is attached to the outer wall surface of the second support part 62. The bending shape of the second bending part 83 is determined by the connection method between the second support part 62 and the carrier 50.

[0125] In some embodiments, a limiting groove is formed by recessing the outer wall surface of the second support part 62. The width of the limiting groove is adapted to the width of the flexible circuit board 80, and the depth of the limiting groove is adapted to the thickness of the flexible circuit board 80. The straight part 82 of the flexible circuit board 80 is located in the limiting groove, and the limiting groove plays a certain limiting role on the flexible circuit board 80, avoiding the flexible circuit board 80 from shaking inside the pen shell 10 and ensuring the reliability of the electrical connection between the flexible circuit board 80 and the circuit board 40 and the carrier 50.

[0126] In some embodiments, the end face where one end of the second support portion 62 away from the circuit board 40 is located is defined as the fourth end face, and the fourth end face is opposite to the first end face. During the assembly of the electronic pen 100, after placing the bracket 60 and the components fixed on the bracket 60 into the pen housing 10, the bracket 60 is fixed in the pen housing 10 by glue. The second bent portion 83 of the flexible circuit board 80 forms a 90-degree angle with the straight portion 82, that is, the straight portion 82 is attached to the fourth end face. Then, the carrier 50 is placed into the pen housing 10, the carrier 50 is pressed against the second support portion 62, and the second bent portion 83 is clamped between the fourth end face of the second support portion 62 and the first end face of the carrier 50. Then, the carrier 50 is adhesively fixed to the pen housing 10 by glue. Thus, the second bent portion 83 of the flexible circuit board 80 abuts against the carrier 50, ensuring the reliability of the electrical connection between the flexible circuit board 80 and the carrier 50, and further ensuring the reliability of the grounding connection between the pen cap 30 and the circuit board 40.

[0127] In some embodiments, the carrier 50 is connected to the second support portion 62 in an insertion connection manner. A connection portion is formed at the second end of the second support portion 62. The connection portion is a hollow columnar body, that is, the connection portion has an insertion slot. The carrier 50 is provided with an insertion portion and a receiving slot 53, and the insertion portion is adapted to the insertion slot. The second bent portion 83 of the flexible circuit board 80 is attached to the outer surface of the connection portion. During the assembly of the electronic pen 100, after placing the bracket 60 and the components fixed on the bracket 60 into the pen housing 10, the bracket 60 is fixed in the pen housing 10 by glue. Then, the carrier 50 is installed. The insertion portion of the carrier 50 is inserted into the insertion slot of the second support portion 62. After being installed in place, the connection portion is located in the receiving slot 53 of the carrier 50, and the second bent portion 83 abuts against the wall surface of the receiving slot 53. Then, the carrier 50 is adhesively fixed to the pen housing 10 by glue. The second bent portion 83 of the flexible circuit board 80 abuts against the wall surface of the receiving slot 53, ensuring the reliability of the electrical connection between the carrier 50 and the flexible circuit board 80.

[0128] In the embodiments of the present disclosure, the bracket 60 is used to install and fix components such as the power supply unit 70. The flexible circuit board 80 is attached to the surface of the bracket 60, avoiding the flexible circuit board 80 from shaking in the pen housing 10. One end of the flexible circuit board 80 is connected to the ground wire of the circuit board 40, and the other end is electrically connected to the carrier 50. It occupies a small space, can be bent according to actual needs, is beneficial to the convenience of assembly, and at the same time ensures the reliability of the grounding connection between the carrier 50 and the circuit board 40.

[0129] In the embodiments of the present disclosure, such as Figure 2 and Figure 3As shown, the electronic pen 100 also includes an elastic conductive member 90; the bracket 60 has a first contact surface facing the carrier 50, the carrier 50 has a second contact surface facing the bracket 60, and the other end of the flexible circuit board 80 and the elastic conductive member 90 are located between the first contact surface and the second contact surface; the elastic conductive member 90 is in an elastic deformation state, the other end of the flexible circuit board 80 abuts against the first contact surface, and the elastic conductive member 90 abuts against the second contact surface.

[0130] The electronic pen 100 further includes an elastic conductive member 90, which includes a crimping spring and is used to further improve the reliability of the electrical connection between the carrier 50 and the flexible circuit board 80. The elastic conductive member 90 is fixedly connected to the second bending portion 83 of the flexible circuit board 80.

[0131] In some embodiments, the second bent portion 83 of the flexible circuit board 80 is 90 degrees to the straight portion 82. The surfaces opposite to the second support portion 62 and the carrier 50 are both planes, the surface of the second support portion 62 facing the carrier 50 is the first contact surface, and the surface of the carrier 50 facing the second support portion 62 is the second contact surface. The second bent portion 83 is arranged in contact with the first contact surface, and the elastic conductive member 90 is fixedly connected to the second bent portion 83. During the assembly process, the bracket 60 and the components installed on the bracket 60 are placed in the pen case 10, the bracket 60 is fixed to the pen case 10, and then the carrier 50 is placed, and a certain pressure is applied to the carrier 50 so that the elastic conductive member 90 is elastically deformed under pressure, and then the carrier 50 is fixed to the pen case 10 by glue. The second bent portion 83 and the elastic conductive member 90 are clamped between the second supporting portion 62 and the carrier 50, and the second bent portion 83 abuts against the first contact surface, and the elastic conductive member 90 abuts against the second contact surface. The second bent portion 83 and the elastic conductive member 90 are not prone to shaking, thereby further improving the reliability of the electrical connection between the flexible circuit board 80 and the carrier 50 through the elastic conductive member 90.

[0132] In some embodiments, the carrier 50 is inserted and connected to the second support part 62. A connecting part is formed at the second end of the second support part 62. The connecting part is a hollow columnar body and has an insertion slot. The carrier 50 is provided with an insertion part and a receiving groove 53, and the insertion part is adapted to the insertion slot. The second bent part 83 of the flexible circuit board 80 is attached to the outer surface of the connecting part. The outer surface of the connecting part constitutes a first contact surface opposite to the carrier 50, and the groove wall surface of the receiving groove 53 of the carrier 50 constitutes a second contact surface opposite to the connecting part. During the assembly process, the bracket 60 and the components mounted on the bracket 60 are placed in the pen shell 10, the bracket 60 is fixed to the pen shell 10, and then the carrier 50 is placed. When a certain pressure is applied to the carrier 50, during the process of the carrier 50 moving relative to the connecting part, the elastic conductive member 90 is elastically deformed by the extrusion of the groove wall surface of the receiving groove 53. After the carrier 50 moves into place, the carrier 50 is fixed to the pen shell 10 with glue. The second bent part 83 and the elastic conductive member 90 are clamped between the connecting part and the carrier 50, and the second bent part 83 abuts against the first contact surface, and the elastic conductive member 90 abuts against the second contact surface. The second bent part 83 and the elastic conductivity are not prone to shaking. Thus, the reliability of the electrical connection between the flexible circuit board 80 and the carrier 50 is further improved through the elastic conductive member 90.

[0133] In the embodiments of the present disclosure, the other end of the flexible circuit board 80 and the elastic conductive member 90 are clamped between the bracket 60 and the carrier 50. After the carrier 50 is installed in place, the elastic conductive member 90 is elastically deformed under pressure, so that the other end of the flexible circuit board 80 abuts against the first contact surface, and the elastic conductive member 90 abuts against the second contact surface, ensuring that the second bent part 83 and the elastic conductive member 90 are not prone to shaking, which is beneficial to further improving the reliability of the electrical connection between the flexible circuit board 80 and the carrier 50, and is beneficial to further improving the reliability of the use of the electronic pen 100.

[0134] As Figure 7 shown, the present disclosure also provides an electronic device system. The electronic device system includes an electronic device 200 and an electronic pen 100. The electronic device 200 has a touch screen, and the electronic pen 100 and the electronic device 200 can interact. The electronic pen 100 is used to execute a first function or a second function on the touch screen.

[0135] The electronic pen 100 includes a pen shell 10, a pen tip 20 and a pen cap 30. The pen tip 20 is provided at one end of the pen shell 10 and executes the first function based on wireless communication with the touch screen to form handwriting on the touch screen; the pen cap 30 is provided at the other end of the pen shell 10 and executes the second function based on touch sensing with the touch screen to erase the handwriting on the touch screen.

[0136] The structure of the electronic pen 100 is as described above. The electronic device 200 includes a mobile phone, a tablet computer, a laptop computer, etc. By sliding the pen tip 20 on the touch screen, a first function can be executed, and the first function is a writing function; by sliding the pen cap 30 on the touch screen, a second function can be executed, and the second function is an erasing function. When the Bluetooth function of the electronic device 200 is turned on, the electronic pen 100 can achieve wireless communication with the electronic device 200 through a Bluetooth connection method.

[0137] The electronic pen 100 further includes a circuit board 40, a sensor, etc. The circuit board 40 and the sensor are arranged in the pen shell 10. A signal circuit, a ground wire, a sensor, etc. are provided on the circuit board 40. When the pen tip 20 slides on the touch screen and the pen tip 20 receives the signal of the touch screen, a corresponding downlink code signal is sent out based on the pen writing protocol, and this signal carries data information such as pressure sensitivity. Based on this information, the touch screen uploads data information such as positioning and pressure sensitivity to the application layer to achieve writing functions such as clicking and drawing lines. The pen tip 20 realizes the writing function on the touch screen through the active capacitance principle. The radial dimension of the pen tip 20 can be set to be small, so the writing sensitivity is high, and it is not easy to have touch interruption, which is beneficial to achieving high-precision writing.

[0138] The pen cap 30 is made of a conductive material. When the user holds the electronic pen 100 and the pen cap 30 slides on the touch screen, the touch screen can detect the change in capacitance value for positioning and upload the erasing information to the application layer to achieve the erasing function. When the user's hand slides on the touch screen and the pen cap 30 slides on the touch screen, the change in capacitance value detected by the touch screen is different. Therefore, when the pen cap 30 slides on the touch screen, the erasing function can be achieved. For the pen cap 30, there is no need to set a signal circuit in the pen shell 10. The pen cap 30 realizes the erasing function on the touch screen through the passive capacitance principle. Compared with the erasing function achieved by the active capacitance principle, the internal structure is simplified, which is beneficial to reducing the manufacturing cost.

[0139] The pen tip 20 realizes the writing function on the touch screen through wireless communication with the touch screen of the electronic device 200, and the pen cap 30 realizes the erasing function on the touch screen through touch sensing with the touch screen. On the premise of having writing and erasing functions, the internal structure of the electronic pen 100 is simplified, which is beneficial to reducing the manufacturing cost, and further beneficial to reducing the manufacturing cost of the electronic device system.

[0140] The carrier 50 is installed at the second end of the pen shell 10. The carrier 50 is connected to the ground wire of the circuit board 40. The pen cap 30 is detachably connected to the carrier 50, which is beneficial to the convenience of installing and disassembling the pen cap 30. The electronic pen 100 can be configured with multiple pen caps 30. When the pen cap 30 is worn, it is convenient to replace the pen cap 30, which is beneficial to improving the service life of the electronic device system.

[0141] The pen cap 30 includes a first conductive portion 31 and a second conductive portion 32. The pen cap 30 is prepared by using a hard rubber material and a soft rubber material. The first conductive portion 31 has an appropriate hardness to ensure the reliability of erasing and the smoothness of installation. The second conductive portion 32 has an appropriate softness to effectively avoid scratching the touch screen of the electronic device 200.

[0142] Those skilled in the art can understand that the features recited in the various embodiments and / or claims of the present disclosure can be combined or / and combined in various ways, even if such combinations or combinations are not explicitly recited in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features recited in the various embodiments and / or claims of the present disclosure can be combined and / or combined in various ways. All such combinations and / or combinations fall within the scope of the present disclosure.

[0143] Although the present disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. An electronic pen, comprising: A pen casing; A pen tip provided at one end of the pen casing, configured to perform a first function based on wireless communication with a touch screen of an electronic device; A pen cap provided at the other end of the pen casing, configured to perform a second function based on touch sensing with the touch screen of the electronic device, the second function being different from the first function.

2. The electronic pen according to claim 1, The electronic pen further comprises a circuit board disposed within the pen casing, the pen tip being communicatively connected to the circuit board; The pen cap is connected to the ground wire of the circuit board for enabling the touch screen to perform touch sensing detection on the pen cap.

3. The electronic pen according to claim 2, The electronic pen further comprises a carrier disposed within the pen casing and located at the other end of the pen casing; The pen cap is detachably connected to the carrier, and the pen cap is connected to the ground wire of the circuit board through the carrier.

4. The electronic pen according to claim 3, The pen cap comprises: A first conductive part detachably connected to the carrier; A second conductive part covering a partial area of the first conductive part and being disposed in contact with an end face of the pen casing, the second conductive part being configured to contact the touch screen; Wherein, the elastic modulus of the second conductive part is greater than that of the first conductive part.

5. The electronic pen according to claim 4, A boss is provided at one end of the carrier away from the circuit board, and the carrier is provided with a slot extending to an end face of the boss, and the first conductive part is inserted into the slot; The first conductive part comprises: A first part in contact with a wall surface of the slot; A second part in contact with a circumferential surface of the boss.

6. The electronic pen according to claim 5, The first part comprises: A rod body; A raised part provided on a surface of the rod body; When the first part and the carrier are in an inserted state, the rod body has a clearance fit with the slot, and the raised part has an interference fit with the slot.

7. The electronic pen according to claim 6, The raised part is strip-shaped, and an extending direction of the raised part is parallel to an axis direction of the slot; A plurality of the raised parts are spaced apart and disposed on the surface of the rod body.

8. The electronic pen according to claim 3, A bracket is provided within the pen casing for placing a power supply unit; The electronic pen further comprises a flexible circuit board, and a partial section of the flexible circuit board is disposed in contact with a surface of the bracket; One end of the flexible circuit board is connected to the ground wire of the circuit board, and the other end is electrically connected to the carrier.

9. The electronic pen according to claim 8, The electronic pen further comprises an elastic conductive member; The bracket has a first contact surface facing the carrier, the carrier has a second contact surface facing the bracket, and the other end of the flexible circuit board and the elastic conductive member are located between the first contact surface and the second contact surface; When the elastic conductive member is in an elastically deformed state, the other end of the flexible circuit board abuts against the first contact surface, and the elastic conductive member abuts against the second contact surface.

10. An electronic device system, comprising: An electronic device, including a touch screen; An electronic pen, configured to perform a first function or a second function on the touch screen; Wherein, the electronic pen includes: A pen casing; A pen tip, provided at one end of the pen casing, configured to perform the first function based on wireless communication with the touch screen to form a handwriting on the touch screen; A pen cap, provided at the other end of the pen casing, configured to perform the second function based on touch sensing with the touch screen to erase the handwriting on the touch screen.

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