Screen assembly and electronic equipment
By introducing piezoelectric components and driving systems into the screen components, the vibration of the piezoelectric unit is controlled, and the problem of single touch of the screen is solved, achieving a rich tactile experience.
Patent Information
- Application Number
- CN202421755117.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The screen of existing electronic devices has a relatively single touch, making it difficult for users to obtain a rich tactile experience.
The screen components include a screen, a piezoelectric element and a driving system. The piezoelectric element is arranged in a matrix of multiple piezoelectric units. The driving system controls the vibration of the piezoelectric unit to realize vibration at any position and multiple positions.
Users can sense vibrations in different parts of the screen components, providing a richer tactile experience.
Smart Images
Figure CN223155454U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of electronic devices, and particularly to a screen assembly and an electronic device. Background Art
[0002] With the development of electronic devices, the requirements of users for electronic devices are gradually increasing, especially the requirements for the touch feeling of the screen are gradually increasing.
[0003] In related technologies, when a user uses an electronic device and clicks on the screen, the corresponding position of the electronic device vibrates to form a touch feedback, so that the user can know whether a certain touch operation is successfully performed.
[0004] However, the touch feeling of the screen of the electronic device in related technologies is relatively single. Summary of the Utility Model
[0005] The present disclosure provides a screen assembly and an electronic device, which can solve the technical problems existing in related technologies. The technical solutions of the screen assembly and the electronic device are as follows.
[0006] In a first aspect, the present disclosure provides a screen assembly, which includes a screen, a piezoelectric element, and a driving system;
[0007] The piezoelectric element is fixed to the screen. The piezoelectric element includes a plurality of piezoelectric units, and the plurality of piezoelectric units are arranged in a matrix;
[0008] The driving system is electrically connected to the piezoelectric unit, and the driving system is used to control the vibration of any one of the piezoelectric units.
[0009] In a possible implementation manner, the plurality of piezoelectric units include a plurality of positive piezoelectric units and a plurality of negative piezoelectric units;
[0010] The positive piezoelectric unit includes a first electrode, a positive piezoelectric single crystal, and a second electrode. The first electrode, the positive piezoelectric single crystal, the second electrode, and the screen are arranged in sequence, and the first electrode and the second electrode are opposite electrodes;
[0011] The negative piezoelectric unit includes a third electrode, a negative piezoelectric single crystal, and a fourth electrode. The third electrode, the negative piezoelectric single crystal, the fourth electrode, and the screen are arranged in sequence, and the third electrode and the fourth electrode are opposite electrodes;
[0012] The driving system is electrically connected to the first electrode, the second electrode, the third electrode, and the fourth electrode.
[0013] In a possible implementation manner, in each row of the piezoelectric units, the positive piezoelectric single crystal and the negative piezoelectric single crystal are arranged alternately.
[0014] In a possible implementation, in each row of the piezoelectric units, the positive piezoelectric single crystal includes two sub-positive piezoelectric single crystals, and the negative piezoelectric single crystal includes two sub-negative piezoelectric single crystals.
[0015] In a possible implementation, in each row of the piezoelectric units, a part of the positive piezoelectric single crystals includes two or three sub-positive piezoelectric single crystals, another part of the positive piezoelectric single crystals includes one sub-positive piezoelectric single crystal, or multiple positive piezoelectric single crystals all include one sub-positive piezoelectric single crystal;
[0016] In each row of the piezoelectric units, a part of the negative piezoelectric single crystals includes two or three sub-negative piezoelectric single crystals, another part of the negative piezoelectric single crystals includes one sub-negative piezoelectric single crystal, or multiple negative piezoelectric single crystals all include one sub-negative piezoelectric single crystal.
[0017] In a possible implementation, the screen assembly further includes a flexible circuit board;
[0018] The first electrode and the third electrode are printed electrodes on the first transparent electrode, and the first electrode and the third electrode are electrically connected through a first printed circuit on the first transparent electrode. The second electrode and the fourth electrode are printed electrodes on the second transparent electrode, and the second electrode and the fourth electrode are electrically connected through a second printed circuit on the second transparent electrode;
[0019] The flexible circuit board has a bus interface. One end of the bus interface is electrically connected to the edge of the first transparent electrode and the edge of the second transparent electrode, and the other end is electrically connected to the driving system.
[0020] In a possible implementation, the standing vibration wave of the piezoelectric unit is 0.1 mm - 0.5 mm.
[0021] In a possible implementation, the vibration frequency of the piezoelectric unit is 10 kHz - 50 kHz.
[0022] In a possible implementation, the driving system includes an MCU (Micro Control Unit) and a driving component;
[0023] The driving component is electrically connected to the MCU and the piezoelectric unit respectively.
[0024] In a second aspect, the present disclosure provides an electronic device, characterized in that the electronic device includes the screen assembly according to any one of the first aspect.
[0025] The technical solution provided by the present disclosure at least includes the following beneficial effects:
[0026] The present disclosure provides a screen assembly. Since the driving system can control the vibration of any piezoelectric unit, the driving system can cause the screen assembly to vibrate at any position. Moreover, it can also control multiple piezoelectric units to vibrate simultaneously, so that the screen assembly vibrates at multiple positions simultaneously. In this way, when a user touches the screen assembly, vibrations at different parts can be sensed, thus enabling the user to have a richer tactile experience.
[0027] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and cannot limit the present disclosure. Description of the Drawings
[0028] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure. In the drawings:
[0029] Figure 1 is a schematic structural diagram of a screen assembly shown in an embodiment of the present disclosure;
[0030] Figure 2 is a schematic structural diagram of a piezoelectric element shown in an embodiment of the present disclosure;
[0031] Figure 3 is a circuit diagram of a screen assembly shown in an embodiment of the present disclosure;
[0032] Figure 4 is a schematic partial structural diagram of a piezoelectric element shown in an embodiment of the present disclosure;
[0033] Figure 5 is a schematic partial structural diagram of a piezoelectric element shown in an embodiment of the present disclosure;
[0034] Figure 6 is a schematic partial structural diagram of a piezoelectric element shown in an embodiment of the present disclosure;
[0035] Figure 7 is a schematic partial structural diagram of a piezoelectric element shown in an embodiment of the present disclosure;
[0036] Figure 8 is a schematic structural diagram of a screen assembly shown in an embodiment of the present disclosure;
[0037] Figure 9 is a schematic structural diagram of a piezoelectric element shown in an embodiment of the present disclosure.
[0038] Legend:
[0039] 1. Screen
[0040] 2. Piezoelectric element, 20. Piezoelectric unit, 21. First electrode, 22. Positive piezoelectric single crystal, 221. Sub-positive piezoelectric single crystal, 23. Second electrode, 24. Third electrode, 25. Negative piezoelectric single crystal, 251. Sub-negative piezoelectric single crystal, 26. Fourth electrode, 201. First transparent electrode, 2011. First printed circuit, 202. Second transparent electrode, 2021. Second printed circuit;
[0041] 3. Driving system, 31. MCU, 32. Driving component;
[0042] 4. Flexible circuit board, 41. Bus interface.
[0043] Through the above-mentioned drawings, specific embodiments of the present disclosure have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present disclosure in any way, but to illustrate the concept of the present disclosure to those skilled in the art by referring to specific embodiments. Detailed implementation manners
[0044] To make the objectives, technical solutions and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the drawings.
[0045] The terms used in the embodiments of the present disclosure are only for explaining the embodiments of the present disclosure and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used herein should be understood in the ordinary sense by those of ordinary skill in the field to which the present disclosure pertains. The "first", "second", "third" and similar terms used in the specification and claims of the present patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. The terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.
[0046] With the development of electronic devices, users' requirements for electronic devices have gradually increased, especially the requirements for the touch feeling of the screen.
[0047] In related technologies, when a user uses an electronic device and clicks on the screen, vibration is generated at the corresponding position of the electronic device to form a touch feedback, enabling the user to know whether a certain touch operation has been successfully performed.
[0048] However, the touch feeling of the screen of the electronic device in related technologies is relatively single.
[0049] In view of the above technical problems, an embodiment of the present disclosure provides a screen assembly. As Figure 1 shown, the screen assembly includes a screen 1, a piezoelectric element 2, and a driving system 3. As Figure 2 shown, the piezoelectric element 2 is fixed to the screen 1. The piezoelectric element 2 includes a plurality of piezoelectric units 20, and the plurality of piezoelectric units 20 are arranged in a matrix. As Figure 3 shown, the driving system 3 is electrically connected to the piezoelectric units 20, and the driving system 3 is used to control the vibration of any piezoelectric unit 20.
[0050] Among them, the whole of the piezoelectric element 2 is transparent, so as to avoid the piezoelectric element 2 affecting the display of the screen 1.
[0051] In the technical solution provided by the embodiment of the present disclosure, since the driving system 3 can control the vibration of any piezoelectric unit 20, the driving system 3 can cause vibration at any position of the screen assembly. Moreover, it can also control the simultaneous vibration of a plurality of piezoelectric units 20, so that a plurality of positions of the screen assembly vibrate simultaneously. In this way, when the user touches the screen assembly, different parts of the vibration can be sensed, so that the user has a richer tactile experience.
[0052] In some examples, as Figure 1 shown, the plurality of piezoelectric units 20 include a plurality of positive piezoelectric units and a plurality of negative piezoelectric units. The positive piezoelectric unit includes a first electrode 21, a positive piezoelectric single crystal 22, and a second electrode 23. The first electrode 21, the positive piezoelectric single crystal 22, the second electrode 23, and the screen 1 are arranged in sequence, and the first electrode 21 and the second electrode 23 are opposite electrodes. The negative piezoelectric unit includes a third electrode 24, a negative piezoelectric single crystal 25, and a fourth electrode 26. The third electrode 24, the negative piezoelectric single crystal 25, the fourth electrode 26, and the screen 1 are arranged in sequence, and the third electrode 24 and the fourth electrode 26 are opposite electrodes. The driving system 3 is electrically connected to the first electrode 21, the second electrode 23, the third electrode 24, and the fourth electrode 26.
[0053] After the first electrode 21 and the second electrode 23 are energized, the positive piezoelectric single crystal 22 will elongate along the direction of the electric field under the action of the electric field, thereby converting electrical energy into mechanical energy of the positive piezoelectric single crystal 22. If a periodic electric field is applied to the first electrode 21 and the second electrode 23, the positive piezoelectric single crystal 22 will periodically elongate and recover, that is, the positive piezoelectric single crystal 22 will generate vibration at a corresponding frequency.
[0054] The vibration principle of the negative piezoelectric single crystal 25 is the same as that of the positive piezoelectric single crystal 22, which will not be elaborated here.
[0055] As Figure 4 shown, the first electrode 21 and the third electrode 24 are located in the same plane, and the first electrode 21 and the third electrode 24 are arranged alternately. Among them, the polarities of the first electrode 21 and the third electrode 24 can be the same or opposite.
[0056] As Figure 5 shown, the second electrode 23 and the fourth electrode 26 are located in the same plane, and the second electrode 23 and the fourth electrode 26 are arranged alternately. Among them, the polarities of the second electrode 23 and the fourth electrode 26 can be the same or opposite.
[0057] In some examples, as Figure 6 and Figure 7 shown, in each row of piezoelectric units 20, the positive piezoelectric single crystals 22 and the negative piezoelectric single crystals 25 are arranged alternately.
[0058] In some examples, as Figure 6 shown, in each row of piezoelectric units 20, the positive piezoelectric single crystal 22 includes two sub-positive piezoelectric single crystals 221, and the negative piezoelectric single crystal 25 includes two sub-negative piezoelectric single crystals 251.
[0059] In some examples, as Figure 7 shown, in each row of piezoelectric units 20, a part of the positive piezoelectric single crystals 22 includes two or three sub-positive piezoelectric single crystals 221, another part of the positive piezoelectric single crystals 22 includes one sub-positive piezoelectric single crystal 221, or multiple positive piezoelectric single crystals 22 all include one sub-positive piezoelectric single crystal 221.
[0060] In each row of piezoelectric units 20, a part of the negative piezoelectric single crystals 25 includes two or three sub-negative piezoelectric single crystals 251, another part of the negative piezoelectric single crystals 25 includes one sub-negative piezoelectric single crystal 251, or multiple negative piezoelectric single crystals 25 all include one sub-negative piezoelectric single crystal 251.
[0061] The embodiments of the present disclosure do not specifically limit the arrangement manner of the positive piezoelectric single crystal 22 and the negative piezoelectric single crystal 25, and the positive piezoelectric single crystal 22 and the negative piezoelectric single crystal 25 can be arranged according to actual needs.
[0062] In some examples, as Figure 8As shown, the screen assembly further includes a flexible circuit board 4. The first electrode 21 and the third electrode 24 are printed electrodes on the first transparent electrode 201, and the first electrode 21 and the third electrode 24 are electrically connected through the first printed circuit 2011 on the first transparent electrode 201. The second electrode 23 and the fourth electrode 26 are printed electrodes on the second transparent electrode 202, and the second electrode 23 and the fourth electrode 26 are electrically connected through the second printed circuit 2021 on the second transparent electrode 202. Among them, the first electrode 21, the third electrode 24 and the first printed circuit 2011 are all printed patterns on the first transparent electrode 201, rather than physical traces, so they will not affect the transparency of the first transparent electrode 201. Similarly, the second electrode 23, the fourth electrode 26 and the second printed circuit 2021 are all printed patterns on the second transparent electrode 202, rather than physical traces.
[0063] The flexible circuit board 4 has a bus interface 41. One end of the bus interface 41 is electrically connected to the edge of the first transparent electrode 201 and the edge of the second transparent electrode 202, and the other end is electrically connected to the drive system 3. The first electrode 21, the second electrode 23, the third electrode 24 and the fourth electrode 26 lead out the electrodes through traces, and the led-out traces are connected to the flexible circuit board 4 and assembled into the bus interface 41. The bus interface 41 is electrically connected to the drive system 3, so that the drive system 3 controls the excitation voltage to generate different vibration modes. Thus, the vibration of the piezoelectric unit 20 is controlled. Since the bus interface 41 is electrically connected to the edge of the first transparent electrode 201 and the edge of the second transparent electrode 202, the traces between the bus interface 41 and the first transparent electrode 201 and the second transparent electrode 202 will not affect the light transmission of the first transparent electrode 201 and the second transparent electrode 202.
[0064] Among them, the flexible circuit board 4 can be an original circuit board in the electronic device or a newly added circuit board.
[0065] In some examples, when the vibration frequencies of the piezoelectric units 20 are different, the presented roughness of the piezoelectric elements 2 is also different. For example, the lower the vibration frequency of the piezoelectric unit 20, the greater the roughness felt by the user when touching the screen assembly. In this way, the user can feel different touch materials, such as rubber, sandpaper and metal.
[0066] In some examples, the piezoelectric element 2 can also present different vibration shapes. As Figure 9 shown, multiple vibrating piezoelectric units 20 can be arranged in the shape of characters. In this way, when the user does not look at the screen assembly, the user can know the characters on the screen by touching the screen assembly, thus forming a braille touch feeling. Or, multiple vibrating piezoelectric units 20 are arranged in the shape of buttons. When the user does not look at the screen assembly, by touching the screen assembly and manipulating the buttons formed by arranging multiple vibrating piezoelectric units 20, the user can control the electronic device.
[0067] In some examples, the standing vibration wave of the piezoelectric unit is 0.1 mm - 0.5 mm.
[0068] In some examples, the vibration frequency of the piezoelectric unit 20 is 10 kHz - 50 kHz. If the vibration frequency is too high, the user cannot feel the vibration of the piezoelectric element 2 when touching the screen assembly. If the vibration frequency is too low, the user will feel an obvious sense of vibration when touching the screen assembly. When the piezoelectric units 20 arranged form a button, it will be difficult for the user to operate the button.
[0069] In some examples, as Figure 3 shown, the driving system 3 includes an MCU (Micro Control Unit) 31 and a driving component 32. The driving component 32 is electrically connected to the MCU 31 and the piezoelectric unit 20 respectively. The MCU 31 drives the vibration of the piezoelectric unit 20 by controlling the driving component 32. Among them, the driving component 32 includes a piezoelectric driving amplifier and a piezoelectric signal controller. The piezoelectric driving amplifier is electrically connected to the MCU 31 and the piezoelectric signal controller. The piezoelectric driving amplifier amplifies the output signal of the MCU 31 and then transmits it to the piezoelectric signal controller, and then the piezoelectric signal controller sends a vibration signal to the piezoelectric unit 20.
[0070] The embodiment of the present disclosure also provides an electronic device, and the electronic device includes the above-mentioned screen assembly.
[0071] Among them, the electronic device can be a mobile phone, a tablet computer, a computer, etc.
[0072] Due to the fact that the driving system 3 in the screen assembly can control the vibration of any piezoelectric unit 20, the driving system 3 can cause the screen assembly to vibrate at any position. Moreover, it can also control multiple piezoelectric units 20 to vibrate simultaneously, so that multiple positions of the screen assembly vibrate simultaneously. In this way, when the user touches the screen assembly, different parts of the vibration can be sensed, thus enabling the user to have a richer tactile experience.
[0073] The above are only optional embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present disclosure shall be included in the protection scope of the present disclosure.
Claims
1. A screen component, characterized in that, The screen assembly includes a screen (1), a piezoelectric element (2), and a driving system (3); The piezoelectric element (2) is fixed to the screen (1). The piezoelectric element (2) includes a plurality of piezoelectric units (20), and the plurality of piezoelectric units (20) are arranged in a matrix; The plurality of piezoelectric units (20) include a plurality of positive piezoelectric units and a plurality of negative piezoelectric units. The positive piezoelectric unit includes a first electrode (21), a positive piezoelectric single crystal (22), and a second electrode (23). The first electrode (21), the positive piezoelectric single crystal (22), the second electrode (23), and the screen (1) are arranged in sequence. The first electrode (21) and the second electrode (23) are opposite electrodes. The negative piezoelectric unit includes a third electrode (24), a negative piezoelectric single crystal (25), and a fourth electrode (26). The third electrode (24), the negative piezoelectric single crystal (25), the fourth electrode (26), and the screen (1) are arranged in sequence. The third electrode (24) and the first electrode (21), the fourth electrode (26) are opposite electrodes. Wherein, in each row of the piezoelectric units (20), the positive piezoelectric single crystals (22) and the negative piezoelectric single crystals (25) are arranged alternately; The driving system (3) is electrically connected to the first electrode (21), the second electrode (23), the third electrode (24), and the fourth electrode (26).
2. The screen assembly according to claim 1, wherein, In each row of the piezoelectric units (20), the positive piezoelectric single crystal (22) includes two sub-positive piezoelectric single crystals (221), and the negative piezoelectric single crystal (25) includes two sub-negative piezoelectric single crystals (251).
3. The screen assembly according to claim 1, characterized in that, In each row of the piezoelectric units (20), some of the positive piezoelectric single crystals (22) include two or three sub-positive piezoelectric single crystals (221), some of the positive piezoelectric single crystals (22) include one sub-positive piezoelectric single crystal (221), or a plurality of the positive piezoelectric single crystals (22) all include one sub-positive piezoelectric single crystal (221); In each row of the piezoelectric units (20), some of the negative piezoelectric single crystals (25) include two or three sub-negative piezoelectric single crystals (251), some of the negative piezoelectric single crystals (25) include one sub-negative piezoelectric single crystal (251), or a plurality of the negative piezoelectric single crystals (25) all include one sub-negative piezoelectric single crystal (251).
4. The screen assembly according to claim 1, characterized in that The screen assembly further includes a flexible circuit board (4); The first electrode (21) and the third electrode (24) are printed electrodes on a first transparent electrode (201), and the first electrode (21) and the third electrode (24) are electrically connected through a first printed circuit (2011) on the first transparent electrode (201). The second electrode (23) and the fourth electrode (26) are printed electrodes on a second transparent electrode (202), and the second electrode (23) and the fourth electrode (26) are electrically connected through a second printed circuit (2021) on the second transparent electrode (202); The flexible circuit board (4) has a bus interface (41), one end of the bus interface (41) is electrically connected to the edge of the first transparent electrode (201) and the edge of the second transparent electrode (202), and the other end is electrically connected to the driving system (3).
5. The screen assembly according to any one of claims 1-4, characterized in that The vibration standing wave of the piezoelectric unit (20) is 0.1 mm - 0.5 mm.
6. The screen assembly according to any one of claims 1-4, characterized in that, The vibration frequency of the piezoelectric unit (20) is 10 kHz - 50 kHz.
7. The screen assembly according to any one of claims 1-4, characterized in that, The driving system (3) includes a micro control unit MCU (31) and a driving component (32); The driving component (32) is electrically connected to the MCU (31) and the piezoelectric unit (20) respectively.
8. An electronic device, characterized in that, The electronic device includes the screen assembly according to any one of claims 1 - 7.