WO2022156591A1

WO2022156591A1 - Screen structure and electronic device

Info

Publication number: WO2022156591A1
Application number: PCT/CN2022/071809
Authority: WO
Inventors: 阮清波; 王志远; 陈毅权
Original assignee: 维沃移动通信有限公司
Priority date: 2021-01-20
Filing date: 2022-01-13
Publication date: 2022-07-28
Also published as: CN112732026A

Abstract

Disclosed in the present application are a screen structure and an electronic device. The screen structure comprises: a screen assembly, a substrate, and at least one vibration assembly; the substrate is provided with at least one through hole, and the substrate is connected to the screen assembly; one vibration assembly is located in one through hole, the vibration assembly is connected to the substrate and the screen assembly, and the vibration assembly is movable along the normal direction of the substrate; wherein the vibration assembly moves relative to the substrate, the vibration assembly drives the screen assembly to vibrate to emit sound.

Description

Screen structure and electronic equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202110076509.4 filed in China on Jan. 20, 2021, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of electronic products, and in particular, to a screen structure and electronic equipment.

Background technique

The technical principle of the screen sound is to use the vibration element to push the screen to vibrate to produce sound. For example, the resonant screen sounding scheme is to attach a device with vibration characteristics to the bottom of the screen or on the middle frame of the whole machine. The device vibrates during operation, and finally drives the screen to vibrate and sound; another example: direct push screen sound In the scheme, the device is mainly composed of two parts, one part is directly attached to the screen, and the other part is fixed on the middle frame. When the device is working, the two parts will generate mutual attraction or repulsion, thereby pushing the screen to vibrate and sound, which Compared with the resonant screen sound generation scheme, the conversion efficiency is improved. However, due to the limited stacking space in the electronic device, the current screen sound generation solutions can only be stacked in a certain space below the screen, so the efficiency of pushing the screen to vibrate and sound is low, and due to the limited space, the device can only be laid out. Compared with the smaller area of the screen, the stress of the device on the screen will be relatively large. When the whole machine is stressed, the screen will form obvious stress in the part coupled with the device, which has a relatively large reliability risk.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a screen structure and an electronic device, so as to solve the problems of low sound emission efficiency and great reliability risks caused by the limited stacking space of the current screen sound generation solution.

In order to solve the above technical problems, this application is implemented as follows:

In a first aspect, an embodiment of the present application provides a screen structure, including:

screen component;

a substrate, the substrate is provided with at least one through hole, and the substrate is connected with the screen assembly;

at least one vibration component, one of the vibration components is located in one of the through holes, the vibration components are respectively connected with the substrate and the screen component, and the vibration component is movable along the normal direction of the substrate; Wherein, when the vibration component moves relative to the substrate, the vibration component drives the screen component to vibrate and emit sound.

In a second aspect, an embodiment of the present application further provides an electronic device, including the above-mentioned screen structure.

In this way, in the above solution of the present application, the substrate is provided with a through hole penetrating the first surface and the second surface, and the vibration component is arranged in the through hole, so that the vibration structure (ie, the substrate and the vibration group) is arranged in the screen structure. The thickness of the screen will not exceed the thickness of the substrate, thus saving space, and because the vibration structure is plate-shaped, it is also convenient for the spatial layout of the screen structure, and it is beneficial to improve the efficiency of the screen when it vibrates and sound, and it is also conducive to reducing the stress on the screen. Thereby improving reliability.

Description of drawings

FIG. 1 shows one of the schematic diagrams of the screen structure of the embodiment of the present application;

FIG. 2 shows a schematic diagram of a substrate and a vibration assembly according to an embodiment of the present application;

FIG. 3 shows a partial schematic diagram of the vibration assembly according to the embodiment of the present application;

FIG. 4 shows the second schematic diagram of the screen structure of the embodiment of the present application.

Description of reference numbers:

1. Screen components;

2. Substrate;

21. Through hole;

3. Vibration components;

31. Vibration plate;

32. Connecting arm;

4, the cover layer.

Detailed ways

Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the application will be more thoroughly understood, and will fully convey the scope of the application to those skilled in the art.

As shown in FIG. 1 , an embodiment of the present application provides a screen structure, including: a screen assembly 1 , a substrate 2 and at least one vibration assembly 3 .

The base plate 2 is provided with at least one through hole 21, and the base plate 2 is connected to the screen assembly 1; The screen assembly 1 is connected, and the vibration assembly 3 is movable along the normal direction of the substrate 2 .

Wherein, when the vibration component 3 moves relative to the substrate 2 , the vibration component 3 drives the screen component 1 to vibrate and emit sound.

It should be noted that the vibration component 3 is movable along the normal direction of the substrate 2 , which may include the vibration component 3 being movable in the normal direction of the substrate 2 , or may include the vibration component 3 It can move within a range that is different from the normal direction by a preset angle, and so on.

Optionally, one vibration component 3 may be provided on one substrate 2, and the screen structure may include multiple substrates 2, that is, the screen structure may be provided with multiple vibration components 3; wherein, the multiple substrates 2 may be arranged in an array, that is, A plurality of vibration components 3 may be arranged in an array.

Optionally, a plurality of vibration components 3 may also be disposed on one substrate 2 , for example, the plurality of vibration components 3 are arranged in an array. Of course, in the case where the substrate 2 is provided with a plurality of vibration components 3 , the screen structure may also include one or more substrates 2 .

Optionally, the spacing between the multiple vibration components 3 may be set according to the distance of the acoustic array, so as to meet the sound pressure level and directivity requirements in special applications, which are not specifically limited in the embodiment of the present application.

In this embodiment, the substrate 2 is provided with a through hole 21 penetrating the first surface and the second surface, and the vibration component 3 is arranged in the through hole 21, so that the vibration structure (ie the substrate 2 and the vibration component) arranged in the screen structure 3) The thickness will not exceed the thickness of the substrate 2, thus saving space, and because the vibration structure is plate-shaped, it is also convenient for the spatial layout of the screen structure, and is conducive to improving the efficiency of the screen vibration and sound, and is also conducive to reducing the size of the screen. stress, thereby improving reliability.

Optionally, as shown in FIG. 2 and FIG. 3 , the vibration assembly 3 includes: a vibration plate 31 and a plurality of connecting arms 32 .

One surface of the vibrating piece 31 is connected to the screen assembly 1; a gap is provided between the side wall of the vibrating piece 31 and the inner wall of the through hole 21, and the side wall of the vibrating piece 31 passes through the The plurality of connecting arms 32 are connected to the inner wall of the through hole 21 .

In this embodiment, the substrate 2 is used to couple the screen assembly 1 (it can be understood that the substrate 2 is indirectly fixed to the screen assembly 1 , such as by bonding, etc.) and to fix the connecting arm 32 . One end of the connecting arm 32 is connected to the vibration plate 31 and the other end is connected to the substrate 2 , so that a gap is formed between the vibration plate 31 and the substrate 2 to ensure that the vibration plate 31 is driven by the connecting arm 32 to vibrate along the normal direction of the substrate 2 , thereby driving the screen assembly 1 to vibrate and emit sound.

Optionally, the number of the connecting arms 32 can be 3, of course, 2, 4, etc., depending on the size of the vibration piece 31 , the distance between the vibration piece 31 and the substrate 2 , and the material of the vibration piece 31 . and other settings, the embodiments of the present application are not limited to this.

Optionally, the base plate 2, the vibrating piece 31 and the connecting arm 32 may be integrally formed, or may be assembled in combination, and the specific forming and combination methods are not specifically limited in the embodiments of the present application.

Optionally, the thickness of the vibrating piece 31 is smaller than the thickness of the substrate 2 ; the thickness of the connecting arm 32 is smaller than the thickness of the substrate 2 ; wherein the thickness is along the normal direction of the substrate 2 size.

In this embodiment, by setting the thickness of the vibrating piece 31 and the connecting arm 32 to be smaller than the thickness of the substrate 2 , when the vibrating piece 31 and the connecting arm 32 are arranged in the through hole 21 of the substrate 2 , they will not protrude from the surface of the substrate 2 . , so as to avoid an increase in the overall thickness of the vibration structure formed by the substrate 2 and the vibration component 3 , that is, to save space, thereby facilitating the spatial layout of the screen structure.

Optionally, the first surface of the substrate 2 is flush with the first surface of the vibration plate 31 , and the second surface of the substrate 2 protrudes from the second surface of the vibration plate 31 .

Wherein, the first surface and the second surface of the substrate 2 are two surfaces disposed opposite to each other along the normal direction of the substrate 2 ; the first surface and the second surface of the vibration plate 31 are along the substrate 2 . Two surfaces whose normals are set in opposite directions.

In this embodiment, the vibrating piece 31 is arranged to be flush with the substrate 2 on the first surface, so that the vibration structure formed by the substrate 2 and the vibrating component 3 is connected to the screen component 1 on the first surface, thereby ensuring that the vibrating piece 31 can drive The screen assembly 1 vibrates and sounds.

Optionally, the first surface of the substrate 2 protrudes from the first surface of the connecting arm 32 , and the second surface of the substrate 2 protrudes from the second surface of the connecting arm 32 .

Wherein, the first surface and the second surface of the substrate 2 are two surfaces disposed opposite to each other along the normal direction of the substrate 2 ; the first surface and the second surface of the connecting arm 32 are along the substrate 2 . Two surfaces whose normals are set in opposite directions.

In this embodiment, the first surface and the second surface of the connecting arm 32 are set lower than the surface of the base plate 2 to ensure that in the process of driving the vibration piece 31 to vibrate through the connecting arm 32, its stroke will not be higher than the base plate 2. collides with screen assembly 1.

Optionally, as shown in FIG. 1 , the screen structure of the embodiment of the present application may further include a cover plate layer 4 . The cover layer 4 is disposed on the first side of the screen assembly 1, and the substrate 2 is disposed on the second side of the screen assembly 1; wherein, the first side and the second side are disposed opposite to each other.

That is to say, the substrate 2 can be arranged below the screen assembly 1 as a whole, that is, one side of the substrate 2 is connected to the screen assembly 1, and the other side is suspended; or one side of the substrate 2 is connected to the screen assembly 1, and the other side is connected to the screen When the structure is installed inside the electronic device, it can be connected with the middle frame of the electronic device.

Optionally, the screen assembly 1 may include: a touch layer; the substrate 2 is located under the touch layer.

In this way, while ensuring that the screen assembly 1 is driven to vibrate and emit sound by the vibration assembly 3 on the substrate 2 , the touch function of the screen assembly 1 can also be ensured.

Optionally, the screen assembly 1 may include a plurality of stacked layer structures. During the production process of the screen assembly 1, the substrate 2 provided with the vibration assembly 3 may be placed between the two layer structures of the screen assembly 1. between. In such a structure, the upper and lower surfaces of the substrate 2 can be fixed to the two-layer structure of the screen assembly 1 respectively, and the vibrating piece 31 is attached to the surface closer to the cover layer 4, which has a better sounding effect.

Optionally, the screen assembly 1 may further include a display layer, a polarizing layer, an adhesive layer, and the like. The substrate 2 is located between two of the touch layer, the polarizing layer, the display layer and the adhesive layer.

Wherein, the screen assembly 1 may also include a foam layer, a light guide layer, a circuit board (such as an antenna circuit board), etc. in addition to the above-mentioned touch layer, display layer, polarizing layer, and adhesive layer. The substrate 2 of the component 3 can be set according to actual requirements, and it only needs to be between two layer structures of the screen component 1 , and the embodiment of the present application is not limited to this.

Embodiments of the present application also provide an electronic device, including the above-mentioned screen structure.

Wherein, the electronic device may be any device with a screen structure, such as a mobile phone, a tablet computer, a wearable device, a vehicle-mounted terminal, etc., and the embodiments of the present application are not limited thereto.

The electronic device in the embodiment of the present application includes the above-mentioned screen structure, which can save space, and because the vibration structure is in the shape of a plate, it is also convenient for the internal space layout of the electronic device, and is beneficial to improve the efficiency when the screen vibrates and emits sound. Reduces stress on the screen, improving reliability.

Optionally, the electronic device further includes: a controller, which is connected to the vibration component 3; the controller is used to output an excitation signal to the vibration component 3; Vibration occurs under the action of the signal, and drives the screen assembly 1 to vibrate and emit sound.

For example, the controller can output an excitation signal to the connecting arm 32 in the vibration component 3, and the connecting arm 32 is the power part in the whole structure. When the excitation signal is input, the connecting arm 32 will vibrate up and down due to the piezoelectric effect, driving the The vibrating piece 31 moves up and down, thereby generating a push-pull force on the screen assembly 1, and the push-pull force acting on the screen assembly 1 will cause the screen assembly 1 to vibrate, thereby producing sound.

Optionally, when multiple vibration components 3 are set in the screen structure, the controller may control each vibration component 3 individually, or may control multiple vibration components 3 simultaneously.

For example: the controller is also used to output different excitation signals to different vibration components 3, or output the same excitation signal to different vibration components 3; wherein, when the excitation signals output by the controller are different, the vibration The vibration parameters corresponding to the components 3 are different, that is, the plurality of vibration components 3 can vibrate simultaneously or individually. Wherein, the vibration parameters may include the amplitude, phase, frequency, etc. of the vibration.

Another example: each vibration component 3 can be controlled by a separate control circuit, that is, the separate control circuit can output excitation signals to its corresponding vibration components 3 respectively, so as to realize that multiple vibration components 3 can vibrate independently; or a separate control circuit The same or different excitation signals can be output to the corresponding vibration components 3, so that multiple vibration components 3 can vibrate at the same time.

In this embodiment, since the plurality of vibration components 3 are arranged at intervals, that is, the plurality of through holes 21 on the substrate 2 as shown in FIG. 2 are isolated from each other. In this way, when the substrate 2 is coupled with the screen assembly 1, it is equivalent to dividing the screen assembly 1 into a plurality of independent areas, each independent area is respectively coupled with the corresponding vibrating piece 31, and when the vibrating piece 31 vibrates, its corresponding Independent areas vibrate without affecting other areas, so as to avoid mutual interference and achieve better acoustic effects.

Optionally, when a better low frequency is required, all the vibrating sheets 31 can be controlled to start vibrating in the same phase, so that the volume of the air pushed by the screen assembly 1 can be maximized, and a better low frequency effect can be achieved; when specific sound field requirements are required For example, 3-dimensional (3D) sound effects, the amplitude and phase of different vibrating pieces 31 can be controlled to achieve specific sound field requirements.

Specifically, according to different application requirements, the spacing between the vibrating sheets 31 can be adjusted to meet special array requirements. For example, in order to make the vibration structure emit on the screen assembly 1 to meet the directivity requirements of ultrasonic directional sounding, the spacing between the vibrating sheets 31 can be arranged according to the sound pressure level requirements, pointing angle requirements and other characteristics of ultrasonic directional sounding, and at the same time matching The control of the circuit adjusts the phase of the vibrating piece 31 to meet the required sound field requirements, and the embodiment of the present application is not limited to this.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments may be referred to each other.

Although the preferred embodiments of the embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the embodiments of the present application.

Finally, it should also be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply these entities or that there is any such actual relationship or sequence between operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or terminal device comprising a list of elements includes not only those elements, but also a non-exclusive list of elements. other elements, or also include elements inherent to such a process, method, article or terminal equipment. Without further limitation, an element defined by the phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

The above are the preferred embodiments of the present application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in the present application, and these improvements and modifications are also included in the present application. within the protection scope of the application.

Claims

A screen structure that includes:

screen component;

a substrate, the substrate is provided with at least one through hole, and the substrate is connected with the screen assembly;

at least one vibration component, one of the vibration components is located in one of the through holes, the vibration components are respectively connected with the substrate and the screen component, and the vibration component is movable along the normal direction of the substrate; Wherein, when the vibration component moves relative to the substrate, the vibration component drives the screen component to vibrate and emit sound.
The screen structure according to claim 1, wherein the vibration assembly comprises: a vibration sheet and a plurality of connecting arms;

One surface of the vibrating sheet is connected with the screen assembly; a gap is set between the side wall of the vibrating sheet and the inner wall of the through hole, and the side wall of the vibrating sheet passes through the plurality of connecting arms connected with the inner wall of the through hole.
The screen structure according to claim 2, wherein the thickness of the vibrating piece is less than the thickness of the substrate; the thickness of the connecting arm is less than the thickness of the substrate;

Wherein, the thickness is a dimension along the normal direction of the substrate.
The screen structure according to claim 3, wherein the first surface of the substrate is flush with the first surface of the vibration plate, and the second surface of the substrate protrudes from the second surface of the vibration plate;

Wherein, the first surface and the second surface of the substrate are two surfaces arranged opposite to each other along the normal direction of the substrate; the first surface and the second surface of the vibrating piece are along the normal direction of the substrate Two surfaces set opposite to each other.
The screen structure of claim 3, wherein the first surface of the substrate protrudes from the first surface of the connecting arm, and the second surface of the substrate protrudes from the second surface of the connecting arm;

Wherein, the first surface and the second surface of the substrate are two surfaces arranged opposite to each other along the normal direction of the substrate; the first surface and the second surface of the connecting arm are along the normal direction of the substrate Two surfaces set opposite to each other.
The screen structure of claim 1, wherein a cover layer is provided on a first side of the screen assembly, and the substrate is located on a second side of the screen assembly;

Wherein, the first side and the second side are arranged opposite to each other.
The screen structure according to claim 1, wherein the screen assembly comprises: a touch layer;

The substrate is located under the touch layer.
The screen structure according to claim 7, wherein the screen assembly further comprises: a polarizing layer, a display layer and an adhesive layer;

The substrate is located between two of the touch layer, the polarizing layer, the display layer and the adhesive layer.
An electronic device comprising the screen structure of any one of claims 1 to 8.
The electronic device of claim 9, further comprising:

a controller, the controller is connected with the vibration assembly;

The controller is used for outputting an excitation signal to the vibration component; the vibration component vibrates under the action of the excitation signal, and drives the screen component to vibrate and emit sound.
The electronic device according to claim 10, wherein the controller is further configured to output different excitation signals to different vibration components, or output the same excitation signal to different vibration components;

Wherein, when the excitation signals output by the controller are different, the vibration parameters corresponding to the vibration components are different.