CN114840075A

CN114840075A - Stylus and terminal equipment

Info

Publication number: CN114840075A
Application number: CN202210353758.8A
Authority: CN
Inventors: 肖冬
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-08-02
Also published as: WO2023193663A1

Abstract

The application provides a writing pen and terminal equipment, the writing pen includes: a main body; the touch module is fixed on the main body and provided with a touch surface, the touch surface is exposed out of the main body, and the touch module is used for receiving an operation instruction input from the touch surface and sending a first touch signal; the control module group, the control module group is fixed in on the main part, and the control module group is connected with the touch module group electricity, and the control module group is used for receiving first touch signal to send first control signal to mutual equipment, first control signal is used for instructing mutual equipment's display screen execution to predetermine the operation. This application can improve the wholeness of writing pen.

Description

Stylus and terminal equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a stylus and terminal equipment.

Background

A stylus is a common input device commonly used with interactive devices. A user holds the handwriting pen by hand, places the pen point of the handwriting pen on the display screen of the interactive equipment, and can edit a document, draw pictures, take pictures, capture pictures, annotate the document and the like by clicking or sliding the pen point on the display screen.

In the related art, a physical entity key is arranged on the stylus pen, and a user can press the physical entity key to switch functions of the stylus pen. Illustratively, when a user edits a document on the display screen, the photographing function can be turned on by pressing the physical entity key.

However, this results in poor pen integrity.

Disclosure of Invention

In order to solve the technical problem, the application provides a stylus pen and terminal equipment, can improve the wholeness of stylus pen.

The application provides a stylus pen, including: a main body; the touch module is fixed on the main body and provided with a touch surface, the touch surface is exposed out of the main body, and the touch module is used for receiving an operation instruction input from the touch surface and sending a first touch signal; the control module group is fixed on the main body and is electrically connected with the touch module group, the control module group is used for receiving a first touch signal and sending a first control signal to the interactive equipment, and the first control signal is used for indicating the display screen of the interactive equipment to execute preset operation.

When the stylus pen is applied and a user wants to enable the display screen to execute preset operation, an operation instruction can be input on the touch control surface of the touch control module, and the touch control module can receive the operation instruction and send a first touch control signal to the control module; the control module can receive the first touch signal and send a first control signal to the interactive device, and the first control signal is used for indicating a display screen of the interactive device to execute preset operation, so that the interactive device can execute the preset operation according to the first control signal after receiving the first control signal. Because the touch module is fixed on the main part, consequently, the touch module can be fixed on the main part through fixed connection's such as welding mode, and the wholeness of writing pen is better like this.

In some possible implementation manners, the stylus pen further comprises a vibration sensor, the vibration sensor is fixed on the touch module, and the vibration sensor is further electrically connected with the touch module; the touch module is also used for sending a second touch signal to the vibration sensor after receiving the operation instruction; the vibration sensor is used for receiving the second touch signal and generating first vibration. Therefore, after a user inputs an operation instruction on the touch surface of the touch module, the touch module receives the operation instruction. Because the vibration sensor is electrically connected with the touch module, the touch module can send a second touch signal to the vibration sensor, and the vibration sensor generates first vibration after receiving the second touch signal. Because the vibration sensor is fixed on the touch module, after the vibration sensor generates first vibration, the first vibration can be transmitted to the fingers of the user through the touch membrane group, so that the user can feel the vibration from the touch module after getting in and out an operation instruction on the touch surface, and the user can timely sense the successful operation on the touch surface.

In some possible implementations, the vibration sensor is fixed inside the main body, a cross-sectional dimension of the vibration sensor along a first direction is smaller than a cross-sectional dimension of the inner wall of the main body along the first direction, and the vibration direction of the vibration sensor is the first direction, and the first direction is perpendicular to the length direction of the main body. Since the first vibration generated by the vibration sensor is usually a high-frequency low-amplitude vibration, when the high-frequency low-amplitude vibration is generated in a direction perpendicular to the length direction of the main body, a feeling of vibration along the length direction of the main body can be brought to the fingers of the user, that is, the fingers of the user can generate a pressing feeling, so that the operation of the touch film set is more simulated.

In some possible implementations, performing the preset operation includes: entering an eraser mode. Therefore, a user can enter an eraser mode through the operation of the touch surface of the touch module.

In some possible implementation manners, the stylus pen further comprises an electrode fixed on the main body, the electrode is electrically connected with the control module, and the electrode is used for sending a first electrode signal when the contact with the display screen is detected; the control module is also used for sending a second control signal to the interactive equipment after sending the first control signal and receiving the first electrode signal, and the second control signal is used for erasing writing marks on the display screen. Therefore, after the user operates the touch control surface, the control module sends a first control signal to the interactive device, and then the display screen of the interactive device enters an eraser mode. When the electrode is in contact with the display screen, a first electrode signal is sent to the control module, a second control signal is sent to the interaction equipment by the control module, and the display screen enters an eraser mode, so that when the electrode is in contact with the display screen, a writing trace at the position, in contact with the electrode, on the display screen can be erased. Therefore, a user can erase the writing traces on the display screen by operating the touch control surface and utilizing the electrodes to contact or slide on the display screen.

In some possible implementation manners, the touch module is further configured to send a third touch signal to the control module when the touch surface is detected to be in contact with the display screen; the control module is further configured to receive a third touch signal and send a third control signal to the interaction device, where the third control signal is used to instruct the display screen to enter an eraser mode. The stylus pen of this application when using, when the user wants to erase the writing trace on the display screen, can place the touch module on the display screen, the touch module when with the display screen contact, sends the third touch signal to the control module group, the control module group can send the third control signal to mutual equipment, from this, the display screen can get into the rubber mode. That is to say, when the user places the touch module on the display screen, the display screen can enter the eraser mode, and therefore, the scheme enables the application of the stylus to be more flexible.

In some possible implementation manners, the control module is further configured to send a second control signal when the touch surface slides on the display screen, and the second control signal is used for erasing a writing trace on the display screen. Therefore, when a user places the touch module on the display screen and slides the touch module, the writing trace on the display screen can be erased. Therefore, the scheme makes the application of the stylus more flexible.

In some possible implementation manners, the stylus pen further comprises an electrode fixed on the main body, the electrode is electrically connected with the control module, and the electrode is used for sending a second electrode signal when the contact with the display screen is detected; the control module is further used for sending a fourth control signal to the interactive device after sending the third control signal and receiving the second electrode signal, and the fourth control signal is used for indicating the display screen to exit the eraser mode. And when the control module sends the third control signal, the interactive equipment enters an eraser mode after receiving the third control signal. And when a user places the electrode on the display screen, the electrode can send a second electrode signal to the control module, the control module sends a fourth control signal to the interactive equipment after receiving the second electrode signal, and the interactive equipment retreats out of the eraser mode after receiving the fourth control signal. That is, when the user places the touch module on the display screen, the interactive device enters an eraser mode; when a user places the electrodes on the display screen, the interactive equipment exits the eraser mode, so that the scheme enables the user to conveniently switch between entering the eraser mode and exiting the eraser mode, namely, the use convenience of the stylus pen can be improved.

In some possible implementations, the control module is further configured to send a fifth control signal to the vibration sensor when sending the second control signal; the vibration sensor is also used for receiving a fifth control signal and generating a second vibration. The second control signal is used to erase the written trace on the display screen, and thus the vibration sensor is capable of generating a second vibration when the stylus is erasing the written trace on the display screen. Because vibration sensor is fixed in on the touch-control module, the touch-control module is fixed in the main part, consequently, when vibration sensor produced the second vibration, can pass through the touch-control module with the second vibration and transmit to the main part to transmit to user's hand through the main part, bring the damping for the hand, thereby make the user produce the simulation sense of erasing and writing the trace, and then improve user's experience.

In some possible implementation manners, the touch module is further configured to receive an operation instruction input from the touch surface and send a first touch signal; the control module is further configured to receive the first touch signal and send a seventh control signal to the interaction device, where the seventh control signal is used to instruct the display screen to enter a writing mode. Thus, when the user operates the touch control surface, the display screen can be switched from the eraser mode to the writing mode, and therefore the use flexibility of the stylus pen can be improved.

In some possible implementations, the electrodes are further configured to send a fifth electrode signal to the control module when in contact with the display screen; the control module is also used for receiving the fifth electrode signal, sending an eighth control signal to the interactive equipment and sending a ninth control signal to the vibration sensor; the interactive device is used for receiving the eighth control signal and forming a writing trace on the display screen; the vibration sensor is also used for receiving the ninth control signal and generating second vibration. Thus, the vibration sensor also generates a second vibration when the stylus is used to write on the display screen. Because vibration sensor is fixed in on the touch-control module, the touch-control module is fixed in the main part, consequently, when vibration sensor produced the second vibration, can pass through the touch-control module with the second vibration and transmit to the main part to transmit to user's hand through the main part, bring the damping for the hand, thereby make the user produce the simulation sense of writing, and then improve user's experience.

In some possible implementation manners, the electrodes include a first electrode and a second electrode, the first electrode is used for detecting a first distance between the display screen and the first electrode and generating a third electrode signal, and the third electrode signal is sent to the control module; the second electrode is used for detecting a second distance between the second electrode and the display screen, generating a fourth electrode signal and sending the fourth electrode signal to the control module; the control module is used for receiving a third electrode signal and a fourth electrode signal and determining an angle between the length direction of the main body and the display screen according to the third electrode signal and the fourth electrode signal; the intensity of the second vibration is positively correlated with the angle. Thus, the greater the angle between the longitudinal direction of the main body and the display screen, the greater the intensity of the second vibration, and the greater the damping. Because the larger the angle between the eraser and the book is, the larger the damping is, when the eraser is used for erasing on the book, the same relation between the angle between the main body and the display screen and the damping is, in the scheme, as when the eraser is used for erasing on the book, and therefore, the scheme can enable a user to generate better simulation feeling, and further improves the user experience.

In some possible implementation manners, the stylus pen further comprises a sensing module, the sensing module is fixed on the main body and used for detecting pressure between the stylus pen and the display screen, generating a pressure signal and sending the pressure signal to the control module; the intensity of the second vibration is positively correlated with the pressure. Thus, the greater the pressure, the greater the intensity of the second vibration, and the greater the damping provided to the hand. Because the larger the pressure is, the larger the damping generated when the eraser is used for erasing the book, the same relation between the damping and the pressure is in the scheme as when the eraser is used for erasing the book, and therefore the scheme can enable a user to generate better simulation feeling, and the user experience is further improved.

In some possible implementation manners, the stylus pen further includes an accelerometer electrically connected to the control module, where the accelerometer is configured to detect a velocity of the main body and generate a velocity signal, and send the velocity signal to the control module; the intensity of the second vibration is positively correlated with the speed. Thus, the higher the speed, the greater the intensity of the second vibration, and the greater the damping provided to the hand. Because the damping generated when the speed is higher is larger when the eraser is used for erasing the book, the relation between the damping and the speed in the scheme is the same as that when the eraser is used for erasing the book, so that the scheme can enable a user to generate better simulation feeling, and the user experience is further improved.

In some possible implementation manners, the control module is further configured to send a sixth control signal to the interaction device when sending the second control signal, where the sixth control signal is used to instruct the display screen to output a sound signal. The control module sends a second control signal, and the interactive equipment erases the writing traces on the display screen after receiving the second control signal. Therefore, when the writing trace is erased on the display screen, an acoustic signal is also output, i.e., a sound is emitted. Because the book can be also sounded when the eraser is used for erasing the book, the scheme can bring auditory simulation for the user, thereby further improving the experience of the user.

In some possible implementation manners, the control module is further configured to send a sixth control signal to the interaction device when sending the eighth control signal, where the sixth control signal is used to instruct the display screen to output a sound signal. The control module sends an eighth control signal, and the interactive equipment forms a writing trace on the display screen after receiving the eighth control signal. Therefore, when the display screen forms the writing trace, the display screen also outputs a sound signal, namely, emits sound. Because the pen can make a sound when used for writing the book, the scheme can bring auditory simulation feeling to the user, thereby further improving the experience of the user.

In some possible implementations, the volume of sound in the sound signal is positively correlated with at least one of angle, pressure, and velocity. When the eraser is used for erasing the book, the erasing sound volume is in positive correlation with the angle between the eraser and the book, the pressure between the eraser and the book and the speed of the eraser, so that the relation between the sound volume and the angle, the relation between the pressure and the speed in the scheme are the same as that when the eraser is used for erasing the book, and the scheme can bring better simulation feeling for a user.

In some possible implementations, the operation instruction includes a single click, a double click, a long press, or a swipe. Therefore, the user can enable the interactive device to execute preset operation by clicking, double clicking, long pressing or sliding on the touch control surface of the touch control module. Therefore, the use convenience of the handwriting pen can be improved.

In some possible implementations, the vibration sensor includes a piezoelectric ceramic or a linear motor. The piezoelectric ceramic or linear motor can be fixed on the touch module in a welding mode, so that the piezoelectric ceramic or linear motor is fixed on the touch module, and the scheme is simple in structure and easy to realize.

The application also provides terminal equipment which is characterized by comprising interactive equipment and the handwriting pen of any one of the interactive equipment and the handwriting pen, wherein the interactive equipment is in communication connection with the handwriting pen. The terminal device can realize all effects of the stylus pen.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a terminal device in an embodiment of the present application;

fig. 2 is a schematic structural diagram of the terminal device shown in fig. 1;

FIG. 3a is a schematic structural diagram of a stylus pen in the terminal device shown in FIG. 1;

FIG. 3b is a schematic diagram of a partially cut-away structure of the stylus pen in the terminal device shown in FIG. 1;

FIG. 4 is a flow chart illustrating an exemplary display screen entering an eraser mode;

FIG. 5a is a schematic diagram illustrating the operation of a stylus on an interface of a display screen;

FIG. 5b is a schematic diagram illustrating the operation of a stylus on an interface of a display screen;

FIG. 5c is a schematic diagram illustrating the operation of a stylus on an interface of a display screen;

FIG. 6a is a schematic diagram illustrating the operation of a stylus on an interface of a display screen;

FIG. 6b is a schematic diagram illustrating the operation of a stylus on an interface of a display screen;

FIG. 7 is a schematic diagram illustrating the operation of a stylus on an interface of a display screen;

FIG. 8 is an exemplary illustrative flow chart for forming a written trace on a display screen;

FIG. 9 is a flow chart illustrating erasing a writing trace and sounding on a display screen;

FIG. 10 is a flow chart illustrating an exemplary display screen entering a writing mode;

FIG. 11a is a schematic diagram illustrating the operation of a stylus on an interface of a display screen;

FIG. 11b is a schematic diagram illustrating the operation of a stylus on an interface of a display screen;

FIG. 11c is a schematic diagram illustrating the operation of a stylus on an interface of a display screen;

FIG. 12 is another flow chart illustrating the display screen entering an eraser mode;

FIG. 13 is another flow chart illustrating erasing a writing trace and sounding on a display screen;

FIG. 14 is a flowchart illustrating the display screen exiting the eraser mode;

FIG. 15 is another flow chart illustrating the display screen exiting the eraser mode.

An icon: 10-an interactive device; 11-a housing; 12-a display screen; 121-brush icon; 122-eraser icon; 13-a control module; 14-a first bluetooth module;

20-a stylus; 21-a body; 211-a first end; 212-a second end; 22-an electrode; 221-a first electrode; 222-a second electrode; 23-a touch module; 231-a touch surface; 24-a control module; 25-a vibration sensor; 26-a sensing module; 27-an accelerometer; 28-a second bluetooth module; 30-written trace.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

The terms "first" and "second," and the like, in the description and in the claims of the embodiments of the present application are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first target object and the second target object, etc. are specific sequences for distinguishing different target objects, rather than describing target objects.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, a plurality of processing units refers to two or more processing units; the plurality of systems refers to two or more systems.

The embodiment of the application provides a terminal device, and the terminal device includes but is not limited to a camera, a mobile phone, a tablet computer, a wearable device, a vehicle-mounted device, an Augmented Reality (AR) device, a notebook computer, a super mobile Personal computer (PDA), and the like. For convenience of description, in the embodiment of the present application, a tablet computer is taken as an example of the terminal device.

As shown in fig. 1, the terminal device includes an interactive device 10 and a stylus pen 20, and a wired connection may be used between the interactive device 10 and the stylus pen 20, and for example, the interactive device 10 and the stylus pen 20 may be connected by a cable. The interactive device 10 and the stylus pen 20 may also be wirelessly connected, for example, a bluetooth connection or a Wi-Fi connection may be used between the interactive device 10 and the stylus pen 20, and the bluetooth connection is used as an example for the following description. Interactive device 10 may receive signals transmitted from stylus 20 and may also feed back signals to stylus 20. After the interactive device 10 and the stylus pen 20 are connected, for example, after the two are connected by bluetooth pairing, the user can use the stylus pen 20 to write on the display 12 of the interactive device 10, erase writing traces on the display 12, or operate on the display 12 to turn on a photographing function, etc.

As shown in fig. 2, the interactive device 10 may include a housing 11, a display 12 fixed on the housing 11, and a control module 13 and a first bluetooth module 14 fixed in the housing 11, where the display 12 may also be referred to as a control panel. The interactive apparatus 10 may interact with the stylus 20 through the first bluetooth module 14. A user may write on the display 12 using the stylus 20 and thus the display 12 may be in a writing mode or an erasing mode for editing documents, drawing on a drawing board, editing mail, chatting through instant messaging software (e.g., WeChat, QQ, etc.). As shown in FIG. 5a, when display 12 is in writing mode, brush icon 121 is highlighted, and a user may make a written trace 30, such as text, a drawing, etc., on display 12 when the user touches or slides on display 12 using stylus 20. As shown in FIG. 5b, when display 12 is in the eraser mode, eraser icon 122 is highlighted and the user may use stylus 20 to touch or slide on display 12 to erase written trace 30 on display 12 at the location of the touch by stylus 20.

As shown in fig. 2, the stylus pen 20 includes a main body 21, an electrode 22, a touch module 23, a control module 24, a vibration sensor 25, a sensing module 26, an accelerometer 27, and a second bluetooth module 28.

Wherein, as shown in fig. 3a, the main body 21 may adopt a tubular structure. The body 21 has opposite first and second ends 211 and 212, and the first and second ends 211 and 212 each have an opening. When the user operates on the display screen 12 using the stylus pen 20, the user can hold the main body 21 using the hand, and thus the stylus pen 20.

For convenience of description, two directions may be defined, a first direction (X direction) and a second direction (Z direction), respectively, wherein the second direction represents a length direction of stylus 20, and the first direction is perpendicular to the length direction of stylus 20.

As shown in fig. 3a, the touch module 23 is fixed at the second end 212 of the main body 21, and the touch module 23 may be a touch integrated circuit, i.e., an integrated circuit with a touch function. The touch module 23 has a touch surface 231, and the touch surface 231 is exposed out of the main body 21, so that a user can conveniently operate the touch surface 231 through fingers to input an operation instruction to the touch module 23. When the user performs different operations on the touch surface 231, the touch module 23 may generate different first touch signals, and the touch module 23 may send the first touch signals to the control module 24.

As shown in fig. 3a, the touch module 23 may have a structure with a thin thickness and a circular end surface, and the end surface of the second end 212 of the main body 21 has a circular ring shape, as shown in fig. 3b, the size of the end surface of the touch module 23 is the same as the size of the end surface of the main body 21, so that when the touch module 23 is fixed at the second end 212 of the main body 21, the end surface of the touch module 23 coincides with the end surface of the second end 212 of the main body 21. When the stylus pen 20 of the embodiment of the application is manufactured, the end surface of the touch module 23 and the end surface of the second end 212 may be welded, so that the integrity of the stylus pen 20 is better. In addition, no gap exists between the touch module 23 and the main body 21, so that the problems of dust deposition and the like are avoided.

As shown in fig. 2, the control module 24 is fixed inside the main body 21, the control module 24 is electrically connected to the touch module 23, and the control module 24 is further electrically connected to the second bluetooth module 28. As shown in fig. 4, after receiving the first touch signal, the control module 24 may generate a first control signal, and send the first control signal to the display 12 of the interactive device 10 through the second bluetooth module 28 and the first bluetooth module 14 of the interactive device 10 in sequence. The display 12 may perform a corresponding operation after receiving the first control signal.

When the user performs different operations on the touch surface 231, the touch module 23 generates different first touch signals, the control module 24 generates different first control signals, and the display screen 12 can perform different operations. Illustratively, when the user clicks on the touch surface 231, the operation performed by the corresponding display screen 12 is switching between an eraser mode and a writing mode, i.e., when the display screen 12 is in the writing mode, the user clicks on the touch surface 231 once, and the display screen 12 is switched from the writing mode to the eraser mode. Or when the display screen 12 is in the eraser mode, the user clicks the one-time touch surface 231, and the display screen 12 is switched from the eraser mode to the writing mode. Since the writing mode and the erasing mode are frequently switched, the writing mode and the erasing mode can be switched by clicking the touch surface 231, so that convenience in operation of a user is improved.

When the user double-clicks the touch surface 231, the display screen 12 may perform an operation with a relatively low frequency, such as a pullback operation, because the operation is more complicated and time-consuming than clicking the touch surface 231. Illustratively, as shown in fig. 5a, when the user forms two writing traces 30 on the drawing board interface of the display 12 and the underlying writing trace 30 is formed later, after the user double-clicks on the touch surface 231, as shown in fig. 5c, the last operation may be withdrawn, that is, the underlying writing trace 30 (as shown in fig. 5a) left on the display 12 is withdrawn, and at this time, only one writing trace 30 is left on the display 12.

When the user slides on the touch surface 231, the display screen 12 may perform operations of adjusting a progress class, such as adjusting the transparency or line width, color, etc. of the brush in the writing mode. Illustratively, as shown in fig. 5a, when the user forms two writing traces 30 on the drawing board interface of the display screen 12, as shown in fig. 6a, when the user's finger slides on the touch surface 231, the transparency of the line may be adjusted, and this operation is to decrease the transparency of the line. Here, when the user actually operates the stylus pen 20, the touch surface 231 may be slid as shown in fig. 6a, or the user may slide on the touch surface 231 with the thumb while holding the main body 21 with the palm. As shown in fig. 6b, when the user slides on the display 12 again using the stylus 20, a writing trace 30 having a smaller transparency (the lowermost writing trace 30) may be formed. Referring to fig. 7 again, if the display 12 displays a document editing interface, the width of the bar can be adjusted by sliding the finger of the user on the touch surface 231.

When the user presses the touch surface 231 for a long time, the display screen 12 may perform an operation of opening an application, for example, opening a photograph, opening a recording, opening a memo, and the like.

When the stylus pen 20 of the embodiment of the application is applied, when a user wants to enable the display screen 12 to execute a preset operation, an operation instruction can be input on the touch surface 231 of the touch module 23, and the touch module 23 can receive the operation instruction and send a first touch signal to the control module 24; the control module 24 may receive the first touch signal and send a first control signal to the display 12, and since the first control signal is used to instruct the display 12 of the interactive device 10 to perform a preset operation, after the interactive device 10 receives the first control signal, the preset operation may be performed according to the first control signal. Since the touch module 23 is fixed to the main body 21, the touch module 23 can be fixed to the main body 21 by a fixing method such as welding, so that the stylus pen 20 has good integrity.

The following description mainly takes an example that after the user clicks the touch surface 231, the first control signal sent by the control module 24 instructs the display 12 to switch from the writing mode to the erasing mode.

As shown in FIG. 3a, the electrode 22 is fixed to the first end 211 of the main body 21 and partially protrudes from the main body 21, as shown in FIG. 5a, when the display 12 is in the writing mode, the brush icon 121 is highlighted, and when the electrode 22 touches or slides on the display 12, the writing trace 30 is generated on the display 12; as shown in fig. 5b, when the display 12 is in the eraser mode, the eraser icon 122 is highlighted and the written trace 30 on the display 12 at the location of contact with the electrode 22 can be erased as the electrode 22 is touched or slid on the display 12. In addition, the electrodes 22 may also be operable on the display screen 12 to turn on a photographing function, to take a screenshot of the display screen 12, and so forth.

As shown in fig. 2, the electrode 22 includes a first electrode 221 and a second electrode 222. The first electrode 221 and the second electrode 222 are arranged in the X direction. When a user uses stylus 20 to write on display 12, stylus 20 is typically angled with respect to display 12 to facilitate placement of the hand on display 12 and writing with display 12 as a point of support. Therefore, when the electrode 22 is in contact with the display screen 12, usually only one electrode 22 between the first electrode 221 and the second electrode 222 is in contact with the display screen 12, that is, the first electrode 221 is in contact with the display screen 12, or the second electrode 222 is in contact with the display screen 12. For convenience of description, the first electrode 221 is mainly in contact with the display panel 12.

It should be noted that, during the process of sliding the first electrode 221 on the display 12, it may be uncertain whether the display 12 is in the writing mode or the erasing mode, and as long as it is in contact with the display 12, the electrode signal may be sent to the control module 24. The control module 24 is used as a device for controlling the mode of the display 12, and after receiving the electrode signal sent by the first electrode 221, may first determine the mode of the display 12, and send different control signals to the interactive device 10 according to different modes.

When the display screen 12 displays a document editing interface, a drawing board interface or an instant messaging interface, the display screen 12 is in a writing mode by default, and the control module 24 still determines that the display screen 12 is in the writing mode when receiving no touch signal sent by the touch module 23 or when receiving a touch signal corresponding to withdrawal operation and adjustment of transparency of a brush or line width, color and the like in the writing mode.

When the display 12 of the interactive device 10 is in the writing mode, when the user places the first electrode 221 on the display 12, the first electrode 221 is in contact with the display 12, or when the user holds the stylus 20 to slide the first electrode 221 on the display 12, as shown in fig. 8, the first electrode 221 may generate a fifth electrode signal and send the fifth electrode signal to the control module 24; the control module 24 may then send an eighth control signal to the display 12 via the second bluetooth module 28 and the first bluetooth module 14, and the display 12 forms a writing trace on the display 12 after receiving the eighth control signal. As shown in fig. 5a, a written trace 30 is formed on the display 12.

As shown in fig. 4, when the user wants to erase the written trace on the display 12, the touch surface 231 can be clicked, and the touch module 23 can receive the clicking operation of the user, and then generate and send the first touch signal. When the control module 24 receives the first touch signal sent by the touch module 23 or sends the first control signal to the display 12, it indicates that the display 12 of the interactive device 10 enters the eraser mode. As shown in FIG. 5b, the brush icon 121 on the drawing board interface of the display screen 12 is highlighted, indicating that the display screen 12 is in the eraser mode.

When the user places the first electrode 221 on the display 12 as shown in fig. 5b, the first electrode 221 is in contact with the display 12, or the user slides the first electrode 221 on the display 12 as shown in fig. 9, the first electrode 221 may generate a first electrode signal and transmit the first electrode signal to the control module 24. After receiving the first touch signal or sending the first control signal, the control module 24 determines that the display screen 12 is in the eraser mode, and sends a second control signal to the display screen 12, where the second control signal is used to erase a writing trace on the display screen 12. The interactive device 10 erases the written trace on the display screen 12 at the position in contact with the first electrode 221 upon receiving the second control signal. As shown in FIG. 5b, the written trace 30 of the area on the display 12 that the stylus 20 is stroked over may be erased as the stylus 20 is moved from the position of the dotted line to the position of the implement.

Thus, when the user clicks the touch surface 231, the control module 24 sends a first control signal to the display 12, and then the display 12 of the interactive device 10 enters the eraser mode. When the first electrode 221 contacts the display 12, a first electrode signal is sent to the control module 24, and the control module 24 sends a second control signal to the display 12, since the display 12 has entered the eraser mode, when the first electrode 221 contacts the display 12, the writing trace on the display 12 at the position where the first electrode 221 contacts can be erased. Thus, the user can erase the written trace on the display screen 12 by operating the touch surface 231 and touching or sliding the electrode 22 on the display screen 12.

When the user needs to continue writing after erasing, the user may click the touch surface 231 again, as shown in fig. 10, the touch module 23 may receive the click operation of the user, and the touch module 23 may generate the first touch signal and send the first touch signal to the control module 24. After receiving the first touch signal again, the control module 24 may send a seventh control signal to the display screen 14 sequentially through the second bluetooth module 28 and the first bluetooth module 14, and after receiving the seventh control signal, the display screen 14 is switched from the eraser mode to the writing mode. At this time, when the user clicks or slides again on the display 12 using the electrodes 22, a written trace is formed on the display 12.

As shown in fig. 3a, the vibration sensor 25 is fixed on the touch module 23 and fixed inside the main body 21. As shown in fig. 3b, the sectional dimension of the vibration sensor 25 in the X direction is smaller than the sectional dimension of the interior of the main body 21 in the X direction.

In an alternative embodiment of the present application, the vibration sensor 25 comprises a piezoelectric ceramic. The piezoelectric ceramic may perform interconversion between mechanical energy and electrical energy, and when the input of the piezoelectric ceramic is electrical energy, that is, when the piezoelectric ceramic receives the second touch signal sent by the touch module 23, the piezoelectric ceramic may output mechanical energy, that is, generate vibration. In assembling the stylus pen 20 according to the embodiment of the present invention, the control module 24, the electrodes 22, and the like may be first mounted on the main body 21, and then the piezoelectric ceramics may be fixed to the touch module 23 by welding, and the touch module 23 may be fixed to the main body 21 by welding, so that the piezoelectric ceramics may be mounted on the main body 21. Therefore, the scheme is simple in structure and easy to implement.

In another alternative embodiment of the present application, the vibration sensor 25 comprises a linear motor. The linear motor can directly convert the electric energy into the linear motion mechanical energy, that is, when the input of the linear motor is the electric energy, that is, when the linear motor receives the second touch signal sent by the touch module 23, the linear motor can generate vibration. The linear motor can also be fixed on the touch module 23 by welding.

Since the end surfaces of the piezoelectric ceramic and the linear motor are made of conductive materials, when the end surfaces of the piezoelectric ceramic or the linear motor are fixed on the touch module 23 by welding, the piezoelectric ceramic or the linear motor can be electrically connected with the touch module 23, that is, the vibration sensor 25 is electrically connected with the touch module 23.

When the stylus pen 20 is provided with the physical entity key, the user may have a certain pressing feeling when pressing on the physical entity key, and the user may determine that the pressing operation is successful. In order to enable the stylus pen 20 of the embodiment of the present application to implement corresponding functions, when the user operates on the touch surface 231, the vibration sensor 25 may generate corresponding vibrations to provide a simulation sense for the user, and in addition, feedback may be provided for the user to enable the user to know whether the current operation on the touch surface 231 is successful.

Specifically, as shown in fig. 4, after the touch module 23 receives a single-click operation of the user, it may further send a second touch signal to the vibration sensor 25. The vibration sensor 25 may be configured to receive the second touch signal and generate a corresponding vibration, which may be referred to herein as a first vibration. Thus, when the user clicks the touch surface 231 of the touch module 23, the touch module 23 receives the clicking operation. Since the vibration sensor 25 is electrically connected to the touch module 23, the touch module 23 can send a second touch signal to the vibration sensor 25, and generate a first vibration after the vibration sensor 25 receives the second touch signal. Since the vibration sensor 25 is fixed on the touch module 23, when the vibration sensor 25 generates a first vibration, the first vibration can be transmitted to the finger of the user through the touch film set, so that the user can feel the vibration from the touch module 23 after clicking on the touch surface 231, and the user can timely sense the successful operation on the touch surface 231.

In an alternative embodiment of the present application, the direction of the first vibration is perpendicular to the length direction of the main body 21, that is, the direction of the first vibration is the X direction. Since the first vibration generated by the vibration sensor 25 is generally a high-frequency low-amplitude vibration, when a high-frequency low-amplitude vibration is generated in a direction perpendicular to the Z direction, a feeling of vibration in the Z direction can be given to the user's finger, that is, the user's finger can generate a pressing feeling, thereby making the operation of the touch film set more realistic.

In another alternative embodiment of the present application, the direction of the first vibration is the same as the length direction of the main body 21, that is, the direction of the first vibration is the Z direction, so that when a user operates on the touch surface 231, the vibration sensor 25 can generate vibration along the Z direction, thereby providing a real pressing feeling to the user.

In another alternative embodiment of the present application, the direction of the first vibration has an angle with the length direction of the main body 21, and the angle is an acute angle, that is, the direction of the first vibration has an angle with the Z direction. In this way, when the user operates on the touch surface 231, the vibration sensor 25 can generate vibration in a direction having an angle with the Z direction, the vibration in the direction can be decomposed into a component in the Z direction and a component in the X direction, the component in the Z direction can provide a real pressing feeling for the user, and the component in the X direction can provide a feeling in the Z direction for the user, so that the scheme can also generate a pressing feeling for the finger of the user.

In addition, when the eraser is used to erase a book, resistance and sound are generated, and the resistance value and sound volume of the resistance are affected when the angle between the eraser and the book, the pressure between the eraser and the book, and the erasing speed of the eraser are all affected. Therefore, in order to make the user generate a better simulation feeling when erasing the writing traces on the display 12 using the stylus pen 20 of the embodiment of the present application, the user may be provided with damping by the vibration sensor 25 during the erasing of the writing traces by the stylus pen 20, and the display 12 emits sound.

Specifically, as shown in fig. 9, the first electrode 221 is used for detecting a first distance from the display screen 12, generating a third electrode signal, and sending the third electrode signal to the control module 24. The second electrode 222 is used for detecting a second distance from the display screen 12, generating a fourth electrode signal, and sending the fourth electrode signal to the control module 24.

As shown in fig. 2, the sensing module 26 is fixed to the first end 211 of the main body 21 and partially exposed from the main body 21, and the sensing module 26 may be a pressure sensor. As shown in fig. 9, the sensing module 26 is used for detecting the pressure between the display screen 12 and generating a pressure signal, and sending the pressure signal to the control module 24.

As shown in fig. 2, the accelerometer 27 is fixed to the inside of the body 21. As shown in fig. 9, the accelerometer 27 is used for detecting the speed of the main body 21, generating a speed signal and sending the speed signal to the control module 24.

As shown in fig. 9, the control module 24 may be configured to receive a third electrode signal, a fourth electrode signal, a pressure signal, and a velocity signal. Control module 24 may determine an angle between the lengthwise direction of body 21 and display screen 12 based on the third electrode signal and the fourth electrode signal, determine a pressure between stylus 20 and display screen 12 based on the pressure signal, and determine a velocity of stylus 20.

As shown in fig. 4, when the user clicks the touch screen, the touch module 23 receives the clicking operation and generates and transmits a first touch signal, the control module 24 transmits a first control signal to the display screen 12 through the second bluetooth module 28 and the first bluetooth module 14 in sequence after receiving the first touch signal, and the display screen 12 enters the eraser mode. As shown in fig. 5b, the user places the first electrode 221 on the display 12, so that the first electrode 221 contacts the display 12, or the first electrode 221 slides on the display 12, as shown in fig. 9, the first electrode 221 sends a first electrode signal to the control module 24, and when the control module 24 receives the first electrode signal after receiving the first touch signal, the display 12 starts to erase the writing trace, that is, sends a second control signal to the display 12, and starts to erase the writing trace of the display 12. Meanwhile, the control module 24 may determine the intensity of the vibration according to the angle between the length direction of the body 21 and the display 12, the pressure between the stylus pen 20 and the display 12, and the speed of the stylus pen 20, generate a fifth control signal, and transmit the fifth control signal to the vibration sensor 25. That is, the control module 24 is also configured to send a fifth control signal to the vibration sensor 25 when sending the second control signal.

As shown in fig. 9, the vibration sensor 25 is also configured to receive a fifth control signal and generate a second vibration. The direction of the second vibration is the same as the direction of the first vibration. The strength of the second vibration is positively correlated to the angle between the longitudinal direction of the main body 21 and the display screen 12, the pressure between the stylus pen 20 and the display screen 12, and the speed of the stylus pen 20.

Since the second control signal is used to erase the written trace on the display screen 12 in the present embodiment, the vibration sensor 25 can generate the second vibration when the stylus pen 20 is erasing the written trace on the display screen 12. Because the vibration sensor 25 is fixed on the touch module 23, and the touch module 23 is fixed on the main body 21, when the vibration sensor 25 generates the second vibration, the second vibration can be transmitted to the main body 21 through the touch module 23, and transmitted to the hand of the user through the main body 21, so as to provide damping for the hand, thereby enabling the user to generate a simulation sense of erasing writing marks, and further improving the user experience.

Further, the intensity of the second vibration is positively correlated with the angle between the length direction of the main body 21 and the display screen 12. Thus, the greater the angle between the longitudinal direction of the main body 21 and the display screen 12, the greater the intensity of the second vibration, and the greater the damping. Because the damping generated when the angle between the eraser and the book is larger when the eraser is used for erasing on the book is also larger, the relationship between the angle between the main body 21 and the display screen 12 and the damping in the scheme is the same as that when the eraser is used for erasing on the book, so that the scheme can enable a user to generate better simulation feeling, and the user experience is further improved.

The intensity of the second vibration is positively correlated to the pressure between stylus 20 and display screen 12. Thus, the greater the pressure, the greater the intensity of the second vibration, and the greater the damping provided to the hand. Because the larger the pressure is, the larger the damping generated when the eraser is used for erasing the book, the same relation between the damping and the pressure is in the scheme as when the eraser is used for erasing the book, and therefore the scheme can enable a user to generate better simulation feeling, and the user experience is further improved.

The intensity of the second vibration is positively correlated to the velocity of stylus 20, so that the higher the velocity, the greater the intensity of the second vibration and the greater the damping of the hand. Because the damping generated when the speed is higher is larger when the eraser is used for erasing the book, the relation between the damping and the speed in the scheme is the same as that when the eraser is used for erasing the book, so that the scheme can enable a user to generate better simulation feeling, and the user experience is further improved.

As shown in fig. 9, the control module 24 is further configured to send a sixth control signal to the display 12 sequentially through the second bluetooth module 28 and the first bluetooth module 14 when sending the second control signal, where the sixth control signal is used to instruct the display 12 to output a sound signal. The control module 24 sends a second control signal, and the display 12 erases the writing trace after receiving the second control signal. Therefore, while the written trace is erased on the display 12, an acoustic signal, i.e., a sound is emitted, is also output. Because the book can be also sounded when the eraser is used for erasing the book, the scheme can bring auditory simulation for the user, thereby further improving the experience of the user.

Further, the sound volume in the sound signal is positively correlated with at least one of the angle, the pressure, and the velocity. When the eraser is used for erasing the book, the erasing sound volume is in positive correlation with the angle between the eraser and the book, the pressure between the eraser and the book and the speed of the eraser, so that the relation between the sound volume and the angle, the relation between the pressure and the speed in the scheme are the same as that when the eraser is used for erasing the book, and the scheme can bring better simulation feeling for a user.

It should be noted that, in an alternative embodiment of the present application, the first electrode 221, the second electrode 222, the sensing module 26, and the accelerometer 27 all detect in real time, generate signals, and send the signals to the control module 24; the control module 24 sends a fifth control signal to the vibration sensor 25 and a sixth control signal to the display 12 only when it is determined that the display 12 erases the written trace. For example, the first electrode 221 may detect the first distance in real time and send a third electrode signal to the control module 24, the second electrode 222 may detect the second distance in real time and send a fourth electrode signal to the control module 24, the sensing module 26 may detect the pressure in real time and send a pressure signal to the control module 24, and the accelerometer 27 may detect the velocity in real time and send a velocity signal to the control module 24. After receiving the third electrode signal, the fourth electrode signal, the pressure signal, and the speed signal, the control module 24 may determine the intensity and the sound volume of the second vibration based on the third electrode signal, the fourth electrode signal, the pressure signal, and the speed signal, and send a fifth control signal to the vibration sensor 25 and a second control signal and a sixth control signal to the display 12 when determining that the display 12 erases the written trace, that is, when receiving the first touch signal and the first electrode signal.

In another alternative embodiment of the present application, the first electrode 221, the second electrode 222, the sensing module 26 and the accelerometer 27 may not need to be detected in real time, but may be detected when it is determined that the display 12 erases the written trace. Illustratively, the control module 24 determines that the display screen 12 performs an operation of erasing a writing trace when receiving the first touch signal and the first electrode signal, the control module 24 may send a tenth control signal to the first electrode 221, the second electrode 222, the sensing module 26, and the accelerometer 27, respectively, and after receiving the tenth control signal, the first electrode 221, the second electrode 222, the sensing module 26, and the accelerometer 27 start to perform detection, and send signals generated by a detection result to the control module 24. The control module 24 may determine the intensity and the sound volume of the second vibration based on the third electrode signal, the fourth electrode signal, the pressure signal, and the speed signal, and send a fifth control signal to the vibration sensor 25 and a sixth control signal to the display 12.

In this embodiment, the vibration sensor 25 only needs to generate the second vibration when erasing the written trace on the display 12, and the display 12 only needs to generate the sound when erasing the written trace, and in other embodiments, since the damping and the sound are generated when writing on the book using the pen, as shown in fig. 8, the vibration sensor 25 also generates the second vibration when the electrode 22 writes on the display 12, and the display 12 also generates the sound. That is, when the electrode 22 writes on the display screen 12 and when the electrode 22 erases a written trace on the display screen 12, the vibration sensor 25 generates the second vibration and the display screen 12 emits a sound. In this case, after receiving the electrode signal sent by the electrode 22, the control module 24 may determine the intensity and the sound volume of the second vibration, send a ninth control signal to the vibration sensor 25, and send a sixth control signal to the display 12 according to the third electrode signal sent by the first electrode 221, the fourth electrode signal sent by the second electrode 222, the pressure signal sent by the sensing module 26, and the velocity signal generated by the accelerometer 27 without determining whether the display 12 is in the writing mode or the erasing mode.

In other embodiments, the difference from the embodiment shown in fig. 4 is that the switching manner between the writing mode and the erasing mode is different. Specifically, in the embodiment shown in fig. 4, the user may click the touch surface 231 to switch the display screen 12 from the writing mode to the eraser mode, or switch the display screen 12 from the eraser mode to the writing mode. In the present embodiment, as shown in fig. 11a, the user may switch the display 12 from the writing mode to the eraser mode by contacting the touch-sensitive surface 231 with the display 12, and the eraser icon 122 is highlighted. As shown in fig. 11b, when the user moves the touch surface 231 away from the display 12, the display 12 is switched from the eraser mode to the writing mode, and the brush icon 121 is highlighted; alternatively, as shown in FIG. 11c, when the user places electrode 22 on display 12, then display 12 switches from the eraser mode to the writing mode and brush icon 121 is highlighted.

When the user wants to erase the display 12 by using the touch surface 231, as shown in fig. 11a, the touch surface 231 can be placed on the display 12, since the amount of the signal generated on the touch surface 231 when the hand contacts the touch surface 231 is different from the amount of the signal generated when the display 12 contacts the touch surface 231, the touch module 23 can detect that the display 12 is in contact with the touch surface 231, and then, as shown in fig. 12, the touch module 23 can send a third touch signal to the control module 24.

With continued reference to fig. 12, the control module 24 is further configured to receive a third touch signal and send a third control signal to the display screen 12, where the third control signal is used to instruct the display screen 12 to enter the eraser mode. When the stylus pen 20 of the present application is used, when a user wants to erase a writing trace on the display screen 12, the touch module 23 may be placed on the display screen 12, the touch module 23 sends a third touch signal to the control module 24 when contacting the display screen 12, and the control module 24 may send a third control signal to the display screen 12, so that the display screen 12 may enter an eraser mode, that is, the display screen 12 is switched from a writing mode to an eraser mode. That is, when the user places the touch module 23 on the display 12, the display 12 enters the eraser mode, and therefore, the application of the stylus 20 is more flexible.

As shown in fig. 13, when the touch surface 231 slides on the display screen 12, the touch module 23 may send a fourth touch signal to the control module 24. The control module 24 is further configured to receive the fourth touch signal and send a second control signal, where the second control signal is used to erase a writing trace on the display screen 12. Thus, when the user places the touch module 23 on the display screen 12 and slides the touch module, the writing trace on the display screen 12 can be erased. This solution therefore makes the application of stylus 20 more flexible.

After the written trace to be erased is erased, the user can place the first electrode 221 on the display 12. In one possible implementation, as shown in FIG. 14, when the user places the first electrode 221 on the display 12, the display 12 exits the eraser mode and enters the writing mode. The first electrode 221 may also be used to send a second electrode signal when contact with the display screen 12 is detected. The control module 24 is further configured to send a fourth control signal to the display 12 after sending the third control signal and receiving the second electrode signal, where the fourth control signal is used to instruct the display 12 to exit the eraser mode. When the control module 24 sends the third control signal, the interactive device 10 enters the eraser mode after receiving the third control signal. When the user places the electrode 22 on the display screen 12, the electrode 22 may send a second electrode signal to the control module 24, the control module 24 sends a fourth control signal to the display screen 12 after receiving the second electrode signal, and the interactive device 10 exits the eraser mode after receiving the fourth control signal. That is, when the user places the touch module 23 on the display 12, the interactive device 10 enters the eraser mode; when the user places the electrodes 22 on the display 12, the interactive device 10 exits the eraser mode, and therefore, this scheme enables the user to easily switch between entering the eraser mode and exiting the eraser mode, i.e., improves the convenience of use of the stylus 20.

In another possible implementation manner, when the user holds the main body 21 to move the touch module 23 away from the display screen 12, the display screen 12 exits the eraser mode and enters the writing mode. As shown in fig. 15, when the touch module 23 leaves from the display 12, the fifth touch signal can be sent to the control module 24 without detecting any semaphore. After receiving the fifth touch signal, the control module 24 sequentially sends an eleventh control signal to the display screen 12 through the second bluetooth module 28 and the first bluetooth module 14. The display 12 exits the eraser mode and enters the writing mode upon receiving the eleventh control signal.

When the user erases the display screen 12 using the touch surface 231, the vibration sensor 25 may also generate a second vibration, and the display screen 12 may also emit a sound. As shown in fig. 13, when receiving the third touch signal or sending the second control signal, the control module 24 sends a fifth control signal to the vibration sensor 25 to make the vibration sensor 25 generate the second vibration, and sends a sixth control signal to the display 12 to make the display 12 generate a sound. The intensity of the second vibration is positively correlated with the angle between the longitudinal direction of the main body 21 and the display screen 12, the pressure between the stylus pen 20 and the display screen 12, and the speed of the stylus pen 20, respectively. The sound volume of the display 12 is positively correlated with the angle between the longitudinal direction of the main body 21 and the display 12, the pressure between the stylus 20 and the display 12, and the speed of the stylus 20, respectively.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A stylus, comprising:

a main body;

the touch module is fixed on the main body and provided with a touch surface, the touch surface is exposed out of the main body, and the touch module is used for receiving an operation instruction input from the touch surface and sending a first touch signal;

the control module group, the control module group is fixed in the main part, the control module group with the touch module group electricity is connected, the control module group is used for receiving first touch signal to send first control signal to mutual equipment, first control signal is used for instructing the display screen execution of mutual equipment is predetermine the operation.

2. The stylus of claim 1, further comprising a vibration sensor, wherein the vibration sensor is fixed to the touch module, and the vibration sensor is further electrically connected to the touch module;

The touch module is further used for sending a second touch signal to the vibration sensor after receiving the operation instruction;

the vibration sensor is used for receiving the second touch signal and generating first vibration.

3. The stylus of claim 2, wherein the vibration sensor is fixed inside the body, a cross-sectional dimension of the vibration sensor along a first direction is smaller than a cross-sectional dimension of an inner wall of the body along the first direction, the vibration direction of the vibration sensor is the first direction, and the first direction is perpendicular to a length direction of the body.

4. The stylus of claim 2 or 3, wherein the performing a preset operation comprises: entering an eraser mode.

5. The stylus of claim 4, further comprising an electrode fixed to the body, the electrode being electrically connected to the control module, the electrode being configured to send a first electrode signal upon detection of contact with the display screen;

the control module is also used for sending the first control signal and receiving after the first electrode signal, to the interactive equipment sends the second control signal, the second control signal is used for erasing the writing trace on the display screen.

6. The stylus according to claim 2 or 3, wherein the touch module is further configured to send a third touch signal to the control module when the touch surface is detected to be in contact with the display screen;

the control module is further configured to receive the third touch signal and send a third control signal to the interaction device, where the third control signal is used to instruct the display screen to enter an eraser mode.

7. The stylus of claim 6, wherein the control module is further configured to send a second control signal when the touch surface slides on the display screen, the second control signal being configured to erase a writing trace on the display screen.

8. The stylus of claim 7, further comprising an electrode secured to the body, the electrode being in electrical communication with the control module, the electrode being configured to send a second electrode signal upon detection of contact with the display screen;

the control module is further configured to send a fourth control signal to the interaction device after sending the third control signal and receiving the second electrode signal, where the fourth control signal is used to instruct the display screen to exit the eraser mode.

9. The stylus of claim 5 or 8, wherein the control module is further configured to send a fifth control signal to the vibration sensor when sending the second control signal;

the vibration sensor is also used for receiving the fifth control signal and generating second vibration.

10. The stylus of claim 5, wherein the touch module is further configured to receive the operation command input from the touch surface and send the first touch signal;

the control module is further configured to receive the first touch signal and send a seventh control signal to the interaction device, where the seventh control signal is used to instruct the display screen to enter a writing mode.

11. The stylus of claim 10, wherein the electrode is further configured to send a fifth electrode signal to the control module upon contact with the display screen;

the control module is further configured to receive the fifth electrode signal, send an eighth control signal to the interaction device, and send a ninth control signal to the vibration sensor;

the interactive device is used for receiving the eighth control signal and forming a writing trace on the display screen;

The vibration sensor is further used for receiving the ninth control signal and generating a second vibration.

12. The stylus of claim 9 or 11, wherein the electrodes comprise a first electrode and a second electrode, the first electrode being configured to detect a first distance from the display screen and generate a third electrode signal, the third electrode signal being sent to the control module;

the second electrode is used for detecting a second distance between the second electrode and the display screen, generating a fourth electrode signal and sending the fourth electrode signal to the control module;

the control module is used for receiving the third electrode signal and the fourth electrode signal and determining an angle between the length direction of the main body and the display screen according to the third electrode signal and the fourth electrode signal;

the intensity of the second vibration is positively correlated with the angle.

13. The stylus of claim 12, further comprising a sensing module fixed to the main body, the sensing module being configured to detect a pressure between the sensing module and the display screen and generate a pressure signal, and send the pressure signal to the control module;

The intensity of the second vibration is positively correlated with the pressure.

14. The stylus of claim 13, further comprising an accelerometer electrically connected to the control module, the accelerometer configured to detect a velocity of the subject and generate a velocity signal, the velocity signal sent to the control module;

the intensity of the second vibration is positively correlated with the speed.

15. The stylus of claim 14, wherein the control module is further configured to send a sixth control signal to the interaction device when sending the second control signal, the sixth control signal being configured to instruct the display screen to output a sound signal.

16. The stylus of claim 14, wherein the control module is further configured to send a sixth control signal to the interactive device when sending an eighth control signal, the sixth control signal being configured to instruct the display screen to output a sound signal.

17. The stylus of claim 15 or 16, wherein an acoustic volume in the acoustic signal is positively correlated to at least one of the angle, the pressure, and the velocity.

18. The stylus of any one of claims 1-17, wherein the operational instruction comprises a single click, a double click, a long press, or a swipe.

19. The stylus of any one of claims 2-17, wherein the vibration sensor comprises a piezo ceramic or a linear motor.

20. A terminal device, characterized in that it comprises an interactive device and a stylus according to any one of claims 1-19, said interactive device being communicatively connected to said stylus.