Display screen, interaction method of display screen and mobile equipment

Abstract

The invention provides a display screen and an interaction method of the display screen. The display screen comprises a device layer; the cover plate is arranged on the surface of the device layer; the plurality of piezoelectric sensing elements are arranged between the device layer and the cover plate; and the main control circuit comprises a plurality of connecting channels, and each connecting channel is coupled with one piezoelectric sensing element so as to receive an electric signal of the piezoelectric sensing element, generate a corresponding vibration wave according to the type of the generated electric signal and control the vibration of the display screen. According to the mode, the corresponding vibration wave is generated based on the type of the electric signal, so that the piezoelectric sensing element and the display screen are controlled to vibrate, the tactile feedback of the display screen can be effectively enriched, and the use experience is improved.

Description

Technical Field

[0001] This application relates to the technical field of mobile devices, and in particular to a display screen, a method for interacting with the display screen, and a mobile device. Background Technology

[0002] Smartwatches are wearable devices, and their haptic feedback greatly influences the user experience when interacting with the watch. However, current technologies for haptic feedback in smartwatches mostly use vibrations of fixed frequency and intensity provided by resonant motors or eccentric motors, resulting in relatively simple haptic feedback that cannot satisfy the user's interactive experience. Summary of the Invention

[0003] This application provides a display screen to address the problem of limited haptic feedback in existing watches.

[0004] To address the aforementioned technical problems, this application provides a display screen, comprising: a device layer; a cover plate disposed on the surface of the device layer; a plurality of piezoelectric sensing elements arranged between the device layer and the cover plate; and a main control circuit comprising a plurality of connection channels, each connection channel being coupled to a piezoelectric sensing element to receive electrical signals from the piezoelectric sensing element and generate corresponding vibration waves according to the type of electrical signals generated, thereby controlling the vibration of the display screen.

[0005] Among them, the area of ​​the piezoelectric sensing element is greater than or equal to the area of ​​the cover plate.

[0006] The display screen also includes an elastic layer, which is disposed on the end face of the cover plate away from the device layer. The hardness of the elastic layer gradually decreases as it moves away from the device layer.

[0007] The display screen also includes: multiple pressure sensors; the pressure sensors are distributed on the inner edge of the cover plate and are each coupled to a connection channel of the main control circuit; the pressure sensors are used to detect the pressure when pressed and transmit it to the main control circuit through the corresponding connection channel; the main control circuit generates a corresponding vibration wave based on the pressure value; wherein the pressure value is positively correlated with the amplitude of the vibration wave.

[0008] The display screen further includes a six-axis sensor, which is coupled to the main control circuit. The six-axis sensor is used to acquire the acceleration and rotation angle of the display screen and generate corresponding electrical signals to amplify the corresponding vibration waves based on the generated electrical signals and control the vibration of the display screen.

[0009] The main control circuit also includes a scene sensing module, which is coupled to a piezoelectric sensing element. The scene sensing module is used to monitor the working status of the display screen and generate corresponding electrical signals according to the working status of the display screen. These signals are then transmitted to the piezoelectric sensing element through the corresponding connection channel to generate corresponding vibration waves.

[0010] To address the aforementioned problems, a second aspect of this application provides an interaction method for a display screen. The display screen includes: a device layer; a cover plate disposed on the surface of the device layer; multiple piezoelectric sensing elements arranged between the device layer and the cover plate; and a main control circuit including multiple connection channels, each connection channel being coupled to a piezoelectric sensing element. The interaction method for the display screen includes: acquiring the pressure value of the display screen when it is pressed through the multiple piezoelectric sensing elements; generating a corresponding electrical signal based on the pressure value using the piezoelectric sensing elements and transmitting it to the main control circuit; generating a corresponding vibration signal according to the type of the generated electrical signal using the main control circuit and transmitting it to the piezoelectric sensing elements; and controlling the vibration of the display screen by generating a corresponding vibration based on the vibration signal using the piezoelectric sensing elements.

[0011] The display screen also includes multiple pressure sensors, each coupled to a connection channel of the main control circuit; a six-axis sensor, coupled to the main control circuit; and a scene perception module, coupled to a piezoelectric sensing element. Before the step of the main control circuit generating a corresponding vibration signal based on the type of generated electrical signal and transmitting it to the piezoelectric sensing element, the system further includes: acquiring the pressure value when pressed using multiple pressure sensors, generating a corresponding electrical signal based on the pressure value, and transmitting it to the main control circuit; and / or acquiring the acceleration and rotation angle of the display screen using the six-axis sensor, generating a corresponding electrical signal, and transmitting it to the main control circuit; and / or acquiring the operating state of the display screen using the scene perception module, generating a corresponding electrical signal based on the operating state, and transmitting it to the main control circuit.

[0012] The display screen interaction method further includes: using a main control circuit to acquire historical force data of user operations on the display screen based on various types through a deep learning module, and storing it in a database; using a parameter adjustment module to adjust the amplitude of the generated vibration through the main control circuit; and using the main control circuit to generate a corresponding vibration signal based on the type of generated electrical signal and transmit it to the piezoelectric sensing element. The steps include: when the user operates the display screen, the main control circuit acquires the type of user operation and uses historical force data to identify the user's usage habits and automatically generates a corresponding vibration signal to correct the vibration signal generated based on the type of generated electrical signal, and transmits the corrected vibration signal to the piezoelectric sensing element; wherein, when the user presses the display screen, the piezoelectric sensing element in the pressed area is in an active state to generate a corresponding electrical signal based on the pressure value during pressing, while the piezoelectric sensing element in areas outside the pressed area is in a high-impedance state.

[0013] To address the aforementioned issues, a third aspect of this application provides a mobile device, comprising: a display screen as described in any of the preceding claims, and an energy storage module, wherein the energy storage module is coupled to the display screen and is used to convert the mechanical energy of the mobile device into electrical energy and store it.

[0014] The beneficial effects of this application are as follows: Unlike the prior art, this application sets multiple piezoelectric sensing elements between the cover plate and the device layer. The piezoelectric sensing elements can detect the pressure value when the display screen is pressed and generate corresponding electrical signals, which are transmitted to the main control circuit through the corresponding connection channel. The main control circuit receives the electrical signals and generates corresponding vibration waves based on the type of electrical signals, thereby controlling the vibration of the piezoelectric sensing elements and the display screen. This can effectively enrich the tactile feedback of the display screen and improve the user experience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the exploded view of the display screen in this application; Figure 2 This is a structural block diagram showing the connection between the main control circuit and the piezoelectric sensing element in this application; Figure 3 This is a structural block diagram of the communication connection of the main control circuit in this application; Figure 4 This is a flowchart illustrating the first embodiment of the interaction method for the display screen of this application; Figure 5 This is a flowchart illustrating the second embodiment of the interaction method for the display screen of this application; Figure 6 This is a flowchart illustrating the third embodiment of the interaction method of the display screen in this application; Figure 7 This is a flowchart illustrating the fourth embodiment of the interaction method for the display screen of this application. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0018] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0019] Please see Figure 1 , Figure 1 This is a structural schematic diagram of the exploded view of the display screen provided in this application.

[0020] This application provides a display screen, such as Figure 1 and Figure 2 As shown, a display screen according to this embodiment includes: a device layer 11, a cover plate 13, a plurality of piezoelectric sensing elements 12, and a main control circuit 15. The cover plate 13 is disposed on the surface of the device layer 11, and the plurality of piezoelectric sensing elements 12 are arranged between the device layer 11 and the cover plate 13. The main control circuit 15 includes a plurality of connection channels 20, each connection channel 20 being coupled to a piezoelectric sensing element 12 to receive electrical signals from the piezoelectric sensing element 12 and generate corresponding vibration waves according to the type of electrical signals generated, thereby controlling the vibration of the display screen. The device layer 11 consists of devices disposed inside the display screen, i.e., the hardware device controlling the operation of the display screen. The cover plate 13 can be a glass component, allowing the display screen to be viewed through the cover plate 13, or it can be other transparent elements; this application does not specifically limit the application to these components.

[0021] In an optional embodiment, multiple piezoelectric sensing elements 12 are arranged between the device layer 11 and the cover plate 13, that is, multiple piezoelectric sensing elements 12 are laid on the end face of the cover plate 13 facing the device layer 11. This allows the piezoelectric sensing elements 12 to detect pressure when the user clicks on any surface of the cover plate 13. The multiple piezoelectric sensing elements 12 are coupled to the main control circuit 15 through multiple connection channels 20. After the user clicks on the cover plate 13 of the display screen, the multiple piezoelectric sensing elements 12 can obtain the pressure value and the position of the user's click. The clicked piezoelectric sensing element 12 then generates a corresponding electrical signal, which is transmitted to the main control circuit 15 through the corresponding connection channel 20. In other words, multiple piezoelectric sensing elements 12 and multiple connection channels 20 are set in the display screen, thereby coupling the piezoelectric sensing elements 12 to the main control circuit 15, meaning that the multiple piezoelectric sensing elements 12 and multiple connection channels 20 are arranged in a one-to-one correspondence.

[0022] In this embodiment, multiple piezoelectric sensing elements 12 are correspondingly arranged with multiple connection channels 20, so that when the user presses the display screen, some piezoelectric sensing elements 12 can detect the corresponding pressure value and transmit it to the main control circuit 15 through the corresponding connection channel 20. The main control circuit 15 can receive the electrical signals generated by the piezoelectric sensing elements 12. That is, after the piezoelectric sensing element 12 is pressed by the user, the piezoelectric sensing element 12 can generate a corresponding electrical signal according to the pressure value, and transmit it to the main control circuit 15 through the corresponding connection channel 20. The main control circuit 15 receives the electrical signal generated by the corresponding piezoelectric sensing element 12 and generates a corresponding vibration wave according to the type of generated electrical signal, thereby controlling the vibration of the display screen.

[0023] In an optional embodiment, when a user presses the cover plate 13 of the display screen, the piezoelectric sensing element 12 under the pressed cover plate 13 detects the pressure value when the user presses. The piezoelectric sensing element 12 generates a corresponding electrical signal based on the pressure value and transmits it to the main control circuit 15 through the corresponding connection channel 20. The main control circuit 15 receives the electrical signal generated by the piezoelectric sensing element 12 and generates a corresponding vibration wave according to the type of the generated electrical signal. It then transmits the wave to the piezoelectric sensing element 12 through the connection channel 20 to control the vibration of the piezoelectric sensing element 12, thereby controlling the vibration of the display screen.

[0024] It should be noted that after the main control circuit 15 receives the electrical signal generated by the piezoelectric sensing element 12, the main control circuit 15 generates a corresponding vibration wave based on the type of the electrical signal. That is, after the piezoelectric sensing element 12 is pressed, different electrical signals can be generated according to the magnitude of the pressure, the range of pressure, and the frequency of pressure. Thus, after the main control circuit 15 receives the electrical signal, it generates a corresponding vibration wave based on the type of the electrical signal. Specifically, the main control circuit 15 can form a corresponding vibration signal based on the type of the received electrical signal and transmit it to the piezoelectric sensing element 12. The piezoelectric sensing element 12 vibrates based on the vibration signal, thereby controlling the vibration of the display screen. In other words, after the main control circuit 15 receives the electrical signal, it can analyze the electrical signal to obtain the required vibration wave and transmit it to the piezoelectric sensing element 12 to control the vibration of the display screen.

[0025] In an optional embodiment, when the piezoelectric sensing element 12 detects pressure, it can detect the pressure frequency, pressure magnitude, and pressure range, thereby generating different electrical signals. This allows the main control circuit 15 to generate different vibration waves based on the type of electrical signal. Specifically, the main control circuit 15 can generate various waveforms, such as pulse waves, sine waves, chaotic waves, and fused waveforms including at least two of the above. Pulse waves can be used to simulate the tactile feedback of button rebound and clicks. Specifically, the vibration feedback, such as "continuous clicking" or "the tactile feedback of a press rebound," can be achieved by adjusting the pulse interval. Sine waves can be used to simulate sliding resistance and the tactile feedback of vibration. Specifically, they can be used to provide a prompt when the navigation direction deviates, i.e., to simulate the tactile feedback of "continuous resistance," to prompt the user of directional deviation. Chaotic waves can be used to simulate texture friction and irregular vibrations. Specifically, non-periodic signals can be generated based on the Lorenz equation to simulate complex tactile sensations such as "sandpaper friction" and "water flow impact." It may also include waveforms that combine the above two elements, such as a composite waveform of a pulse wave and a sine wave, which can be used to simulate the combined tactile sensation of "gear jamming and high-frequency vibration". When performing composite tactile simulation, the harmonic distortion rate can be reduced by using a Fourier transform algorithm. In other embodiments, other waveforms can also be simulated to suit other tactile sensations, which are not specifically limited herein.

[0026] In the above embodiment, by setting multiple piezoelectric sensing elements 12 between the cover plate 13 and the device layer 11, the piezoelectric sensing elements 12 can detect the pressure value when the display screen is pressed and generate a corresponding electrical signal, which is transmitted to the main control circuit 15 through the corresponding connection channel 20. The main control circuit 15 receives the electrical signal and generates a corresponding vibration wave based on the type of electrical signal, thereby controlling the vibration of the piezoelectric sensing elements 12 and the display screen, which can effectively enrich the tactile feedback of the display screen and improve the user experience.

[0027] In an optional embodiment, the area of ​​the piezoelectric sensing element 12 is greater than or equal to the area of ​​the cover plate 13. That is, the piezoelectric sensing element 12 is laid flat on the end face of the cover plate 13 facing the device layer 11, and the area of ​​the piezoelectric sensing element 12 must be greater than or equal to the area of ​​the cover plate 13. This ensures that when the cover plate 13 is pressed at any position, there is a piezoelectric sensing element 12 to sense the pressure value, thereby ensuring the compatibility of the display screen.

[0028] In this embodiment, the piezoelectric sensing element 12 can be a hexagonal structure. Multiple piezoelectric sensing elements 12 form a honeycomb-shaped hexagonal array structure, which is then tightly arranged in hexagons and embedded into the end face of the cover plate 13 facing the device layer 11. Specifically, a single piezoelectric sensing element 12 can be an ultra-thin piezoelectric ceramic unit with a size of 2×2mm and a thickness of 0.3mm, so that the tactile point density of the cover plate 13 can reach 32 points per square centimeter, thereby ensuring the diversity of tactile sensation and effectively eliminating the problem of tactile discontinuity at the edge of the cover plate 13.

[0029] In this embodiment, multiple piezoelectric sensing elements 12 are connected to the main control circuit 15 through multiple connection channels 20. Specifically, each piezoelectric sensing element 12 can be independently driven by a flexible FPC (Flexible Printed Circuit) circuit, thereby enabling the display screen to support partial or full-area collaborative operation. The multiple piezoelectric sensing elements 12 are arranged in a honeycomb hexagonal array structure on one side end face of the cover plate 13, and the area of ​​the multiple piezoelectric sensing elements 12 is greater than or equal to the area of ​​the cover plate 13. This ensures the positioning accuracy and press positioning range of the display screen, thus avoiding situations such as tactile discontinuity or tactile deviation. Because the multiple piezoelectric sensing elements 12 adopt a honeycomb hexagonal array layout structure, accuracy can be effectively guaranteed, thereby improving the diversity of tactile sensation when pressing virtual buttons on the display screen. For example, the tactile difference between the edge and center of the button can be distinguished.

[0030] In an optional embodiment, such as Figure 1 As shown, the display screen also includes an elastic layer 14, which is disposed on the end face of the cover plate 13 away from the device layer 11. The hardness of the elastic layer 14 gradually decreases along the direction away from the device layer 11. The elastic layer 14 can be an elastic silicone layer with a thickness of 0.1 mm. When the elastic layer 14 is disposed on the end face of the cover plate 13 away from the device layer 11, a Shore hardness gradient design can be adopted, meaning the hardness of the elastic layer 14 gradually decreases along the direction away from the device layer 11. Specifically, the hardness of the elastic layer 14 near the cover plate 13 is A (Shore hardness A) 40, and the hardness of the elastic layer 14 away from the cover plate 13 is A80. By setting the gradient elastic layer 14, the tactile feel of real objects can be simulated, such as the rigidity of a metal button and the softness of a rubber surface.

[0031] In an optional embodiment, such as Figure 3As shown, the display screen also includes multiple pressure sensors 31, which are distributed along the inner edge of the cover plate 13 and each coupled to a connection channel 20 of the main control circuit 15. The pressure sensors 31 detect the pressure when pressed and transmit this information to the main control circuit 15 via the corresponding connection channel 20. The main control circuit 15 generates a corresponding vibration wave based on the pressure value, where the pressure value and the amplitude of the vibration wave are positively correlated. The multiple pressure sensors 31 are located along the inner edge of the cover plate 13, meaning they are integrated at the edge of the display screen and can be configured to correspond with buttons at the edge of the display screen. This allows the pressure sensors 31 to collect the pressure value of the buttons in real time. The multiple pressure sensors 31 are coupled to the main control circuit 15, one-to-one via the connection channels 20. After a pressure sensor 31 detects the pressure when pressed, it transmits the information to the main control circuit 15 via the corresponding connection channel 20. The main control circuit 15 generates a corresponding vibration wave based on the pressure value, thereby controlling the vibration of the corresponding button.

[0032] In a specific application scenario, when a user uses the display screen, i.e., presses a button, the pressure sensor 31 detects the pressure and transmits the monitored pressure value to the main control circuit 15 via the corresponding connection channel 20. The main control circuit 15 can then generate a corresponding vibration wave based on the acquired pressure value, thereby controlling the vibration of the display screen and the button. The pressure value and the amplitude of the vibration wave are positively correlated; that is, the vibration amplitude of the display screen button can be controlled according to the pressure value applied. For example, a larger pressure results in a larger vibration wave, and a smaller pressure results in a smaller vibration wave.

[0033] In an optional embodiment, such as Figure 3 As shown, the display screen further includes a six-axis sensor 32, which is coupled to the main control circuit 15. The six-axis sensor 32 is used to acquire the acceleration and rotation angle of the display screen and generate corresponding electrical signals to amplify the corresponding vibration waves based on the generated electrical signals, thereby controlling the vibration of the display screen. The six-axis sensor 32 can be used to monitor the acceleration and rotation angle of the display screen, thereby generating corresponding electrical signals based on the corresponding acceleration and rotation angle, and then amplifying the corresponding oscillation waves based on the generated electrical signals.

[0034] In a specific application scenario, the display screen is used in a smartwatch or bracelet. When a user uses the built-in application on the display screen, for example, a navigation system, if the navigation system prompts a right turn, the main control circuit 15 can generate corresponding vibration information and transmit it to a designated position of the piezoelectric sensing element 12 through the connection channel 20, thereby controlling that position to vibrate to prompt the user to turn right. However, during use, there may be a certain amplitude of arm swinging or rotation, so the vibration effect perceived by the user may be weak, making it difficult to effectively perceive the vibration transmission information. At this time, the six-axis sensor 32 can detect that the bracelet or watch is swinging or rotating when the user swings or rotates their arm, and then transmits an electrical signal that needs to be strengthened to the main control circuit 15. This causes the main control circuit 15 to transmit the signal that needs to be strengthened to the vibration wave and control the piezoelectric sensing element 12 to strengthen the vibration amplitude, so that the user can more clearly sense the vibration of the watch or bracelet.

[0035] In an optional embodiment, the main control circuit 15 of the display screen further includes a scene sensing module (not shown). The scene sensing module is coupled to the piezoelectric sensing element 12. The scene sensing module is used to monitor the working state of the display screen and generate corresponding electrical signals according to the working state of the display screen. These signals are then transmitted to the piezoelectric sensing element 12 through the corresponding connection channel 20 to generate corresponding vibration waves. The scene sensing module can be used to monitor the working state of the display screen, such as whether it is in a navigation or game state, and thereby generate corresponding electrical signals based on the acquired state to control the vibration of the corresponding piezoelectric sensing element 12.

[0036] In a specific application scenario, the display screen is used in watches and wristbands. When in a navigation scenario, that is, when the scene perception module detects that the display screen is in navigation mode, since it is inconvenient to look at the watch while cycling, the scene perception module can detect the working state of the display screen. That is, when the display screen is detected to be in navigation mode, a corresponding electrical signal can be generated based on the navigation state to control the vibration of the corresponding piezoelectric sensing element 12. Specifically, when the display screen is in a navigation scenario, if the navigation prompts that a left turn is required, the main control circuit 15 can control some of the piezoelectric sensing elements 12 on the left side of the display screen to generate pulse waves in sequence at intervals, thereby prompting the user that a left turn is required. Specifically, when a left turn is required, the 12 piezoelectric sensing elements 12 on the left side of the display screen trigger pulse waves in sequence, forming a "flowing" tactile sensation from the upper left to the lower left to prompt the user that a left turn is required, and vice versa for a right turn.

[0037] In a specific application scenario, the display screen is used in watches and wristbands. When in a game scene, that is, when the scene perception module detects that the display screen is in a game state, it can generate corresponding vibration waves based on the game state. Specifically, when the display screen is in a game state, the scene perception module detects that the display screen is in a game scene and can provide tactile feedback in conjunction with in-game actions. For example, when in a "shooting state" in the game, the corresponding pressure sensing element can be controlled to execute different vibrations, thereby reflecting the recoil during shooting and the difference in recoil between different tools. In other embodiments, vibration simulation can also be performed for collisions in the game scene, which is not limited here.

[0038] In an optional embodiment, the display may further include a development module (not shown) that allows for the development of new tactile sensations, thereby enhancing the tactile versatility of the display.

[0039] This application also provides a display screen interaction method, which is executed through the display screen of any of the above embodiments. Please refer to [link to relevant documentation]. Figure 4 , Figure 4 This is a flowchart illustrating the first embodiment of the interaction method for the display screen of this application. It should be noted that if substantially the same result is achieved, the method of this invention is not necessarily identical. Figure 4 The illustrated process sequence is limited. For example... Figure 4 As shown, the method includes the following steps: S11: The pressure value when the display screen is pressed is obtained through multiple piezoelectric sensing elements 12.

[0040] In this embodiment, multiple piezoelectric sensing elements 12 can obtain the pressure value when the user presses the display screen. For example, if the display screen is used in a smartwatch, when the user presses the smartwatch, the piezoelectric sensing elements 12 provided on one side of the cover plate 13 obtain the pressure value.

[0041] When the display screen is pressed, a gradient elastic layer 14 is provided on the side of the cover plate 13 away from the device layer 11, allowing the user to feel the tactile sensation of a real button. Furthermore, when the display screen is pressed, multiple piezoelectric sensing elements 12 detect the user's pressing gesture. When the user presses the display screen, the piezoelectric sensing elements 12 in the pressed area are activated to generate a corresponding electrical signal based on the pressure value, while the piezoelectric sensing elements 12 in areas outside the pressed area are in a high-impedance state, i.e., inactive.

[0042] S12: The piezoelectric sensing element 12 generates a corresponding electrical signal based on the pressure value and transmits it to the main control circuit 15.

[0043] In this embodiment, after the piezoelectric sensing element 12 obtains the pressure value when it is pressed, the piezoelectric sensing element 12 can generate a corresponding electrical signal based on the pressure value and transmit it to the main control circuit 15. Each piezoelectric sensing element 12 is coupled to a corresponding connection channel 20 and is coupled to the main control circuit 15. That is, after the piezoelectric sensing element 12 generates a corresponding electrical signal based on the pressure value, it can transmit it to the main control circuit 15 through the corresponding connection channel 20.

[0044] Since the pressure and gestures of users when using the display screen vary, the piezoelectric sensing element 12 can also obtain different pressure values ​​based on the pressure and gestures. After obtaining different pressure values, it can generate different electrical signals based on the different pressure values.

[0045] S13: The main control circuit 15 generates a corresponding vibration signal according to the type of electrical signal generated and transmits it to the piezoelectric sensing element 12.

[0046] Furthermore, after the main control circuit 15 acquires the electrical signal generated by the piezoelectric sensing element 12, it can generate a corresponding vibration signal based on the electrical signal. That is, since the piezoelectric sensing element 12 can generate different electrical signals based on different pressure values, the main control circuit 15 can generate different vibration signals based on different electrical signals. In other words, it can generate a corresponding vibration signal according to the type of generated electrical signal and transmit the generated vibration signal to the corresponding piezoelectric sensing element 12.

[0047] S14: The piezoelectric sensing element 12 generates corresponding vibrations based on the vibration signal to control the vibration of the display screen.

[0048] In an optional embodiment, after the main control circuit 15 generates a corresponding vibration signal, the vibration signal can be transmitted to the corresponding piezoelectric sensing element 12 through the connection channel 20, thereby controlling the piezoelectric sensing element 12 to generate corresponding vibration based on the vibration signal, thereby controlling the vibration of the display screen.

[0049] Please see Figure 5 , Figure 5 This is a flowchart illustrating the second embodiment of the interaction method for the display screen of this application. It should be noted that if substantially the same result is achieved, the method of this invention is not necessarily identical. Figure 5 The illustrated process sequence is limited. For example... Figure 5 As shown, the method includes the following steps: S21: The pressure value when pressed is obtained by multiple pressure sensors 31, and a corresponding electrical signal is generated based on the pressure value and transmitted to the main control circuit 15.

[0050] In an optional embodiment, the display screen is used in a smartwatch, and multiple pressure sensors 31 can correspond to the button settings of the smartwatch, that is, they can be set at the edge of the smartwatch. When the user presses a button, the pressure sensor 31 can detect the pressure value and the pressing frequency, and generate a corresponding electrical signal based on the pressure value. Since the pressing force and gesture are different, such as multiple clicks or long presses, the piezoelectric sensing element 12 can also obtain different pressure values ​​based on the pressing force and gesture, and generate different electrical signals based on the different pressure values.

[0051] S22: The main control circuit 15 generates a corresponding vibration signal according to the type of electrical signal generated and transmits it to the piezoelectric sensing element 12.

[0052] The steps are similar to those in S13 above, so they will not be elaborated on here.

[0053] S23: The piezoelectric sensing element 12 generates corresponding vibrations based on the vibration signal to control the vibration of the display screen.

[0054] The steps are similar to those in S14 above, so they will not be elaborated on here.

[0055] Please see Figure 6 , Figure 6 This is a flowchart illustrating the third embodiment of the interaction method for the display screen of this application. It should be noted that if substantially the same result is achieved, the method of this invention is not necessarily identical. Figure 6 The illustrated process sequence is limited. For example... Figure 6 As shown, the method includes the following steps: S31: The acceleration and rotation angle of the display screen are obtained through the six-axis sensor 32, the corresponding electrical signals are generated, and transmitted to the main control circuit 15.

[0056] In this embodiment, the six-axis sensor 32 can detect when the user swings or rotates their arm that the wristband or watch is swinging or rotating, and then transmits the electrical signal that needs to be amplified to the main control circuit 15. This allows the main control circuit 15 to transmit the signal that needs to be amplified and control the piezoelectric sensing element 12 to amplify the vibration amplitude, so that the user can more clearly sense the vibration of the watch or wristband.

[0057] S32: The main control circuit 15 generates a corresponding vibration signal according to the type of electrical signal generated and transmits it to the piezoelectric sensing element 12.

[0058] The steps are similar to those in S13 above, so they will not be elaborated on here.

[0059] S33: The piezoelectric sensing element 12 generates corresponding vibrations based on the vibration signal to control the vibration of the display screen.

[0060] The steps are similar to those in S14 above, so they will not be elaborated on here.

[0061] Please see Figure 7 , Figure 7 This is a flowchart illustrating the fourth embodiment of the interaction method for the display screen of this application. It should be noted that if substantially the same result is achieved, the method of this invention is not necessarily identical. Figure 7 The illustrated process sequence is limited. For example... Figure 7 As shown, the method includes the following steps: S41: Obtain the working status of the display screen through the scene perception module, generate corresponding electrical signals based on the working status, and transmit them to the main control circuit 15.

[0062] In this embodiment, the operating state of the display screen can be detected by the scene perception module. For example, when the user is using the navigation system, a corresponding electrical signal can be generated based on the navigation state to control the vibration of the corresponding piezoelectric sensing element 12. Specifically, when the display screen is in a navigation scenario, if the navigation prompts that a left turn is required, the main control circuit 15 can control some of the piezoelectric sensing elements 12 on the left side of the display screen to generate pulse waves in sequence at intervals, thereby prompting the user that a left turn is required. Specifically, when a left turn is required, the 12 piezoelectric sensing elements 12 on the left side of the display screen trigger pulse waves in sequence, forming a "flowing" tactile sensation from the upper left to the lower left to prompt the user that a left turn is required.

[0063] S42: The main control circuit 15 generates a corresponding vibration signal according to the type of electrical signal generated and transmits it to the piezoelectric sensing element 12.

[0064] The steps are similar to those in S13 above, so they will not be elaborated on here.

[0065] S43: The piezoelectric sensing element 12 generates corresponding vibrations based on the vibration signal to control the vibration of the display screen.

[0066] The steps are similar to those in S14 above, so they will not be elaborated on here.

[0067] In an optional embodiment, the display screen interaction method further includes: using the main control circuit 15 to acquire historical force data of the user's operation of the display screen based on various types of operations via a deep learning module (not shown), and storing it in a database (not shown). Specifically, when the user operates the display screen, the main control circuit 15 acquires the type of user operation, and uses the historical force data to identify the user's usage habits and automatically generates a corresponding vibration signal to correct the vibration signal generated according to the type of electrical signal generated, and transmits the corrected vibration signal to the piezoelectric sensing element 12.

[0068] The deep learning module identifies user habits based on historical force data stored in the database to optimize the generated vibration waves. The deep learning module is coupled to the main control circuit 15. When the user uses the display screen, the piezoelectric sensing element 12 detects the user's usage habits, such as long presses and swipe gestures. The piezoelectric sensing element 12 can recognize the user's gesture data, such as long presses and swipe gestures. This data is then transmitted to the main control circuit 15. The main control circuit 15 acquires the user's gesture data and, through the deep learning module, learns from the historical force data to generate an appropriate haptic solution. For example, if the user previously used swipe gestures to adjust brightness, the system will automatically adjust the brightness and generate corresponding brightness-adjusting vibrations when the user swipes.

[0069] In a specific application scenario, when a user uses the display screen, the user's gesture data during screen use is transmitted to the main control circuit 15 via the piezoelectric sensing element 12 and the corresponding connection channel 20, and stored in the database, i.e., the aforementioned historical force data. In subsequent use of the display screen, the piezoelectric sensing element 12 can detect the user's gesture data and transmit it to the main control circuit 15 via the corresponding connection channel 20. The deep learning module, based on the main control circuit 15, can acquire the collected gesture data and call the historical force data from the database. By comparing the collected gesture data with the historical force data, it can determine the user's required operation for using the display screen at that gesture time and adaptively generate a corresponding haptic solution.

[0070] For example, when drawing a clockwise circle on the display screen, it indicates brightness adjustment. This information is stored in the database. When the user uses the display screen again and draws a clockwise circle, the corresponding piezoelectric sensing element 12 on the display screen detects that the user is drawing a clockwise circle and transmits this information to the deep learning module. Based on the data in the database, the deep learning module determines that the user is drawing a clockwise circle to increase the brightness and generates a corresponding oscillation signal. This signal is then transmitted to the corresponding pressure sensing element through the connection channel 20 to cause vibration.

[0071] In an optional embodiment, the display screen may be equipped with a parameter adjustment module (not shown). The main control circuit 15 can adjust the amplitude of the generated vibration through the parameter adjustment module. In other words, the amplitude of the generated vibration can be adjusted through the parameter adjustment module to adjust the vibration amplitude to suit the user. Specifically, the tactile intensity and type can be set through the matching APP. The specific settings can be made according to actual needs, and this application does not make specific limitations.

[0072] Based on the overall inventive concept, this application also provides a mobile device, which includes a display screen as described in any of the above embodiments and an energy storage module (not shown). The energy storage module is coupled to the display screen and is used to convert and store the mechanical energy of the mobile device into electrical energy. Specifically, the energy storage module can be coupled to the main control circuit 15 and the piezoelectric sensing element 12, thereby utilizing the piezoelectric sensing element 12, which can be configured as a piezoelectric ceramic unit. That is, by utilizing the inverse effect of piezoelectric ceramics, mechanical energy can be converted into electrical energy when the mobile device swings or a button rebounds, thereby effectively improving the usage time of the mobile device.

[0073] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display screen, characterized in that, The display screen is used in a wearable device, and the display screen includes: Device layer; A cover plate is disposed on the surface of the device layer; Multiple piezoelectric sensing elements are arranged between the device layer and the cover plate; The main control circuit includes multiple connection channels, each of which is coupled to one of the piezoelectric sensing elements to receive electrical signals from the piezoelectric sensing elements and generate corresponding vibration waves according to the type of electrical signals generated, thereby controlling the vibration of the display screen.

2. The display screen according to claim 1, characterized in that, The area of ​​the piezoelectric sensing element is greater than or equal to the area of ​​the cover plate.

3. The display screen according to claim 1, characterized in that, The display screen also includes an elastic layer disposed on the end face of the cover plate away from the device layer, and the hardness of the elastic layer gradually decreases along the direction away from the device layer.

4. The display screen according to claim 1, characterized in that, The display screen also includes: Multiple pressure sensors; the pressure sensors are distributed along the inner edge of the cover plate and are each coupled to a connection channel of the main control circuit; The pressure sensor is used to detect the pressure when pressed and transmits it to the main control circuit through the corresponding connection channel. The main control circuit generates a corresponding vibration wave based on the pressure value; wherein the pressure value is positively correlated with the amplitude of the vibration wave.

5. The display screen according to claim 1, characterized in that, The display screen further includes a six-axis sensor, which is coupled to the main control circuit. The six-axis sensor is used to acquire the acceleration and rotation angle of the display screen and generate corresponding electrical signals to amplify the corresponding vibration waves based on the generated electrical signals, thereby controlling the vibration of the display screen.

6. The display screen according to claim 1, characterized in that, The main control circuit also includes a scene sensing module, which is coupled to the piezoelectric sensing element. The scene sensing module is used to monitor the working status of the display screen and generate corresponding electrical signals according to the working status of the display screen, and transmit them to the piezoelectric sensing element through the corresponding connection channel to generate corresponding vibration waves.

7. An interactive method for a display screen, characterized in that, The display screen includes a component layer and a cover plate disposed on the surface of the component layer. Multiple piezoelectric sensing elements are arranged between the device layer and the cover plate; The main control circuit includes multiple connection channels, each of which is coupled to one of the piezoelectric sensing elements. The interaction method of the display screen includes: The pressure value when the display screen is pressed is obtained through the multiple piezoelectric sensing elements; The piezoelectric sensing element generates a corresponding electrical signal based on the pressure value and transmits it to the main control circuit. The main control circuit generates a corresponding vibration signal based on the type of electrical signal generated and transmits it to the piezoelectric sensing element. The piezoelectric sensing element generates corresponding vibrations based on the vibration signal to control the vibration of the display screen.

8. The interactive method for a display screen according to claim 7, characterized in that, The display screen also includes multiple pressure sensors, each coupled to one of the connection channels of the main control circuit; a six-axis sensor coupled to the main control circuit; and a scene perception module coupled to the piezoelectric sensing element. Prior to the step of the main control circuit generating a corresponding vibration signal based on the type of generated electrical signal and transmitting it to the piezoelectric sensing element, the system further includes: The pressure value when pressed is acquired by multiple pressure sensors, a corresponding electrical signal is generated based on the pressure value, and transmitted to the main control circuit; and / or The six-axis sensor acquires the acceleration and rotation angle of the display screen, generates corresponding electrical signals, and transmits them to the main control circuit; and / or The scene perception module obtains the working status of the display screen, generates corresponding electrical signals based on the working status, and transmits them to the main control circuit.

9. The display screen interaction method according to claim 7, characterized in that, The display screen interaction method further includes: The main control circuit uses a deep learning module to acquire historical force data of the user's various types of operations on the display screen, and stores it in a database; The amplitude of the generated vibration is adjusted by the parameter adjustment module through the main control circuit. The step of generating a corresponding vibration signal based on the type of generated electrical signal using the main control circuit and transmitting it to the piezoelectric sensing element includes: When the user operates the display screen, the main control circuit obtains the type of user operation and uses the historical force data to identify the user's usage habits and automatically generates a corresponding vibration signal to correct the vibration signal generated according to the type of electrical signal generated, and transmits the corrected vibration signal to the piezoelectric sensing element. When a user presses the display screen, the piezoelectric sensing element in the pressed area is activated to generate a corresponding electrical signal based on the pressure value during pressing, while the piezoelectric sensing element in the area outside the pressed area is in a high impedance state.

10. A mobile device, characterized in that, The mobile device includes a display screen as described in any one of claims 1-7, and An energy storage module is coupled to the display screen and is used to convert the mechanical energy of the mobile device into electrical energy and store it.

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