WO2021043016A1

WO2021043016A1 - Electronic apparatus and sound emission control method thereof

Info

Publication number: WO2021043016A1
Application number: PCT/CN2020/110807
Authority: WO
Inventors: 严笔祥
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-09-05
Filing date: 2020-08-24
Publication date: 2021-03-11
Also published as: CN110572502B; CN110572502A

Abstract

Provided in embodiments of the present invention are an electronic apparatus and a sound emission control method thereof. The sound emission control method is applied in an electronic apparatus comprising a display screen, at least five piezoelectric ceramic units and a processor. The processor is respectively electrically connected to the display screen and the piezoelectric ceramic units. The processor can determine a sound emission state of a piezoelectric ceramic unit according to a distance between a location of a preset object image displayed on the display screen and the piezoelectric ceramic unit, thereby enhancing audio playback performance of the electronic apparatus.

Description

Electronic equipment and its sound control method

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on September 5, 2019, the application number is 201910839012.6, and the invention title is "electronic equipment and its sound control method", the entire content of which is incorporated into this application by reference .

Technical field

This application relates to the field of electronic technology, in particular to an electronic device and a sound control method thereof.

Background technique

With the development of communication technology, electronic devices such as smart phones are becoming more and more popular. The electronic device is usually provided with a speaker, and the speaker can output an audio signal corresponding to the picture on the display screen, but the audio signal can only be output at a position corresponding to the speaker, and the sound playback effect is poor.

Summary of the invention

The embodiments of the present application provide an electronic device and a sound control method thereof, which can improve the sound playback effect of the electronic device.

An embodiment of the present application provides an electronic device, including:

Display screen, used to display pictures;

At least five piezoelectric ceramic monomers, each piezoelectric ceramic monomer is used to emit sound, at least four piezoelectric ceramic monomers are located at the edge of the electronic device, and at least one piezoelectric ceramic monomer The body is located in the display area of the display screen; and

The processor is electrically connected to the display screen and the piezoelectric ceramic monomer respectively, and the processor is configured to, when a preset object image is displayed on the display screen, according to the preset object image The distance between the position on the display screen and each piezoelectric ceramic cell determines the sound state of each piezoelectric ceramic cell.

The embodiment of the present application provides a sound control method of an electronic device. The electronic device includes a display screen for displaying images and at least five piezoelectric ceramic monomers, each of the piezoelectric ceramic monomers is used to emit sound, At least four of the piezoelectric ceramic monomers are located at the edge of the electronic device, and at least one of the piezoelectric ceramic monomers is located in the display area of the display screen;

The method includes:

Acquiring a preset object image displayed on the display screen;

Calculating the distance between the position of the preset object image on the display screen and each piezoelectric ceramic monomer according to the position of the preset object image on the display screen;

According to the distance between the position of the preset object image on the display screen and each piezoelectric ceramic monomer, the sound state of each piezoelectric ceramic monomer is determined.

The embodiment of the present application provides a storage medium on which a computer program is stored, and when the computer program is run on a computer, the computer is caused to execute the above-mentioned method for controlling sound emission of an electronic device.

Description of the drawings

FIG. 1 is a schematic diagram of the structure of an electronic device provided by an embodiment of the application.

FIG. 2 is a schematic diagram of the structure of a piezoelectric ceramic monomer in the electronic device shown in FIG. 1.

Fig. 3 is a schematic structural diagram of the piezoelectric ceramic monomer shown in Fig. 2 in a first bending state.

4 is a schematic structural diagram of the piezoelectric ceramic monomer shown in FIG. 2 in a second bending state.

Fig. 5 is a first schematic cross-sectional view of the electronic device shown in Fig. 1 along the P-P direction.

6 is a schematic diagram of a second cross-sectional structure of the electronic device shown in FIG. 1 along the P-P direction.

FIG. 7 is a schematic diagram of a third cross-sectional structure of the electronic device shown in FIG. 1 along the P-P direction.

FIG. 8 is a diagram of a first application scene in which a preset object image is displayed on a display screen in an embodiment of the application.

FIG. 9 is a diagram of a second application scene in which a preset object image is displayed on a display screen in an embodiment of the application.

FIG. 10 is a schematic flowchart of a sound control method of an electronic device according to an embodiment of the application.

detailed description

Display screen, used to display pictures;

Wherein, the sounding state includes a sounding state and a non-sounding state; the processor is configured to determine that the piezoelectric ceramic monomer is in a sounding state when the distance is less than a first preset value. When it is greater than or equal to the first preset value, it is determined that the piezoelectric ceramic monomer is in a non-sound state.

Wherein, the processor is further configured to determine the sound effect mode of the sound emitted by the piezoelectric ceramic monomer according to the distance when the piezoelectric ceramic monomer is in a sound state.

Wherein, the sound effect mode includes a volume, and the processor is configured to control the volume of the sound emitted by the piezoelectric ceramic monomer to be greater than a third preset value when the distance is less than a second preset value; When it is greater than or equal to the second preset value and less than the first preset value, the volume of the sound emitted by the piezoelectric ceramic monomer is controlled to be greater than the fourth preset value and less than the third preset value.

Wherein, the sound effect mode includes a tone, and the processor is configured to control the tone of the sound emitted by the piezoelectric ceramic monomer to be higher than a fifth preset value when the distance is less than a second preset value; When the distance is greater than or equal to the second preset value and less than the first preset value, the pitch of the sound emitted by the piezoelectric ceramic monomer is controlled to be higher than the sixth preset value and lower than the fifth preset value .

Wherein, when the processor determines that there are a plurality of piezoelectric ceramic monomers smaller than the second preset value, the processor is configured to determine the distance values of the plurality of piezoelectric ceramic monomers smaller than the second preset value. In descending order, the pitch and/or volume of a plurality of piezoelectric ceramic monomers that are smaller than the second preset value are controlled from low to high.

Wherein, the electronic device further includes an audio control sub-circuit board, the audio control sub-circuit is electrically connected to the processor and the at least five piezoelectric ceramic monomers, and the audio control sub-circuit is used to control the at least The vibration state of the five piezoelectric ceramic monomers is used to control whether the at least five piezoelectric ceramic monomers emit sound, the volume of the sound, and the tone of the sound.

Wherein, the piezoelectric ceramic monomer includes a first piezoelectric ceramic sheet, a diaphragm, and a second piezoelectric ceramic sheet that are stacked, and the diaphragm includes a first zone and a second zone, and the second zone is arranged in On the periphery of the first zone, the first piezoelectric ceramic sheet and the second piezoelectric ceramic sheet are arranged in the first zone, so that the second zone is exposed to the outside.

Wherein, the electronic device further includes an AC power supply, the AC power supply includes a first electrode and a second electrode with different potential values; the first piezoelectric ceramic sheet includes a first end surface and a second end surface opposed to each other, the first One end surface is electrically connected to the first electrode, the second end surface is connected to the first area of the diaphragm, and the second end surface is electrically connected to the second electrode; the second piezoelectric ceramic The sheet includes a third end surface and a fourth end surface opposed to each other. The third end surface is connected to the first area of the diaphragm and the third end surface is electrically connected to the second electrode. The fourth end surface is connected to the second electrode. The first electrode is electrically connected.

Wherein, the at least five piezoelectric ceramic monomers are arranged on the non-display surface of the display screen, at least four piezoelectric ceramic monomers are arranged at the edge position of the display screen, and at least one piezoelectric ceramic monomer is arranged on the edge of the display screen. The single body is arranged in the display area of the display screen, a first gap is provided between the at least five piezoelectric ceramic monomers and the non-display surface of the display screen, and the first gap is used for pressing The electric ceramic monomer provides deformation space.

Wherein, the at least five piezoelectric ceramic monomers are arranged on the non-display surface of the display screen, at least four piezoelectric ceramic monomers are arranged at the edge position of the display screen, and at least one piezoelectric ceramic monomer is arranged on the edge of the display screen. The monomer is arranged in the display area of the display screen, and the at least five piezoelectric ceramic monomers are used to drive the display screen to vibrate, so that the display screen emits sound.

Wherein, the electronic device further includes a housing, the at least five piezoelectric ceramic monomers are arranged on the inner surface of the housing, and at least four piezoelectric ceramic monomers are arranged at the edge position of the housing At least one piezoelectric ceramic monomer is arranged on the housing and located in the display area of the display screen, and a second gap is provided between the piezoelectric ceramic monomer and the inner surface of the housing, The second gap is used to provide a deformation space for the piezoelectric ceramic monomer.

An embodiment of the present application also provides a sound control method for an electronic device. The electronic device includes a display screen for displaying images and at least five piezoelectric ceramic monomers, each of the piezoelectric ceramic monomers is used to emit sound. , At least four of the piezoelectric ceramic monomers are located at the edge of the electronic device, and at least one of the piezoelectric ceramic monomers is located in the display area of the display screen;

The method includes:

Acquiring a preset object image displayed on the display screen;

Wherein, the determining the sounding state of each piezoelectric ceramic monomer according to the distance between the position of the preset object image on the display screen and each piezoelectric ceramic monomer includes:

Judging whether the distance between the position of the preset object image on the display screen and the piezoelectric ceramic monomer is less than a first preset value;

When the distance is less than the first preset value, determining that the piezoelectric ceramic monomer is in a sound-emitting state;

When the distance is greater than or equal to the first preset value, it is determined that the piezoelectric ceramic monomer is in a non-sound state.

Wherein, when the distance is less than the first preset value, after determining that the piezoelectric ceramic monomer is in a sound-emitting state, the method further includes: when the piezoelectric ceramic monomer is in a sound-emitting state, according to the distance Determine the sound effect mode of the sound emitted by the piezoelectric ceramic monomer.

Wherein, the determining the sound effect mode of the sound emitted by the piezoelectric ceramic monomer according to the distance includes: when the distance is less than a second preset value, controlling the volume of the sound emitted by the piezoelectric ceramic monomer to be greater than The third preset value; when the distance is greater than or equal to the second preset value and less than the first preset value, the volume of the sound emitted by the piezoelectric ceramic monomer is controlled to be greater than the fourth preset value and less than The third preset value.

Wherein, the determining the sound effect mode of the sound emitted by the piezoelectric ceramic unit according to the distance includes: when the distance is less than a second preset value, controlling the pitch of the sound emitted by the piezoelectric ceramic unit to be high At the fifth preset value; when the distance is greater than or equal to the second preset value and less than the first preset value, the pitch of the sound emitted by the piezoelectric ceramic monomer is controlled to be higher than the sixth preset value And lower than the fifth preset value.

Wherein, the determining the sound effect mode of the sound emitted by the piezoelectric ceramic monomer according to the distance includes: when the distance is less than a second preset value, controlling the volume of the sound emitted by the piezoelectric ceramic monomer to be greater than The third preset value, and controls the pitch of the sound emitted by the piezoelectric ceramic monomer to be higher than the fifth preset value; when the distance is greater than or equal to the second preset value and less than the first preset value , Controlling the volume of the sound emitted by the piezoelectric ceramic monomer to be greater than a fourth preset value and less than the third preset value, and controlling the tone of the sound emitted by the piezoelectric ceramic monomer to be higher than the sixth preset value Value and lower than the fifth preset value.

Wherein, when the distance is less than the second preset value, the volume of the sound emitted by the piezoelectric ceramic monomer is controlled to be greater than the third preset value, and the tone of the sound emitted by the piezoelectric ceramic monomer is controlled to be higher than The fifth preset value includes: when there are multiple piezoelectric ceramic monomers smaller than the second preset value, according to the distance value of the plurality of piezoelectric ceramic monomers smaller than the second preset value from large to In a small order, the pitch and volume of the distance values of the plurality of piezoelectric ceramic monomers smaller than the second preset value are controlled from low to high.

An embodiment of the present application further provides a storage medium on which a computer program is stored, wherein when the computer program is run on a computer, the computer is caused to execute the above-mentioned method for controlling sound emission of an electronic device.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the application. The electronic device 20 may be a smart phone, a tablet computer, a PDA (Personal Digital Assistant), etc.

The electronic device 20 may include at least five piezoelectric ceramic monomers, such as piezoelectric ceramic monomers 200, which are made of ceramic materials. The piezoelectric ceramic monomer 200 can convert mechanical energy and electrical energy to each other. When the piezoelectric ceramic monomer 200 converts electrical energy into mechanical energy, the piezoelectric ceramic monomer 200 can output a sound signal. At this time, the piezoelectric ceramic monomer 200 can be used as an electronic device. The earpiece or speaker of the device 20; when the piezoelectric ceramic monomer converts mechanical energy into electrical energy, the piezoelectric ceramic monomer 200 can collect sound signals. At this time, the piezoelectric ceramic monomer 200 can be used as the microphone of the electronic device 20.

In conjunction with FIG. 2, FIG. 2 is a schematic diagram of the structure of the piezoelectric ceramic monomer in the electronic device shown in FIG. 1. The shape of the piezoelectric ceramic monomer 200 may be a regular shape. For example, the piezoelectric ceramic monomer 200 may have a rectangular structure, a rounded rectangular structure, a circular structure, or the like. The piezoelectric ceramic monomer 200 may have an irregular shape.

The piezoelectric ceramic unit 200 may include a first piezoelectric ceramic sheet 210, a diaphragm 220, and a second piezoelectric ceramic sheet 230 that are stacked. Among them, the first piezoelectric ceramic sheet 210 and the second piezoelectric ceramic sheet 230 are conductors that can be used to conduct current. The diaphragm 220 is a non-conductor and cannot be used to conduct current.

The size of the diaphragm 220 is larger than the sizes of the first piezoelectric ceramic sheet 210 and the second piezoelectric ceramic sheet 230. The diaphragm 220 may include a first area and a second area, and the second area is disposed at the periphery of the first area. For example, the second zone can be arranged around the periphery of the first zone. Wherein, the first piezoelectric ceramic sheet 210 and the second piezoelectric ceramic sheet 230 are arranged in the first area, so that the second area is exposed to the outside.

The first piezoelectric ceramic sheet 210 and the second piezoelectric ceramic sheet are respectively electrically connected to an AC power source, such as an AC power source 400, for converting the electrical energy output by the AC power source 400 into mechanical energy. The AC power supply 400 is used to output AC voltage, and the AC power supply 400 may include a first electrode 410 and a second electrode 420 with different potential values.

The first piezoelectric ceramic sheet 210 has a first end surface and a second end surface opposite to each other. The first end surface is a surface away from the diaphragm 220, and the second end surface is a surface connected to the first area. The first end surface is electrically connected to the first electrode 410 of the AC power source 400, and the second end surface is electrically connected to the second electrode 420 of the AC power source 400.

The second piezoelectric ceramic sheet 230 has a third end surface and a fourth end surface opposite to each other, wherein the third end surface is a surface connected to the first region, and the fourth end surface is a surface away from the diaphragm 220. The third end surface is electrically connected to the second electrode 420 of the AC power source 400, and the fourth end surface is electrically connected to the first electrode 420 of the AC power source 400.

As shown in Figures 3 and 4, Figure 3 is a schematic structural diagram of the piezoelectric ceramic monomer shown in Figure 2 in a first bending state, and Figure 4 is a structural schematic diagram of the piezoelectric ceramic monomer shown in Figure 2 in a second bending state .

The direction of the alternating voltage of the AC power supply 400 can change with time along with the direction. The piezoelectric ceramic unit 200 can undergo a deformation movement with the alternating voltage direction. The deformation of the piezoelectric ceramic unit 200 Movement can make the surrounding air flow, thereby making sound.

For example, as shown in FIG. 3, when the alternating voltage direction of the AC power supply 400 is output from the first electrode 410 and returns to the second electrode 420, then the first piezoelectric ceramic sheet 210 and the second piezoelectric ceramic sheet 230 Under the action of the electric field, the respective polarization vectors of the original chaotic orientation are polarized along the preferred orientation of the electric field direction, because the direction of the applied electric field of the first piezoelectric ceramic sheet 210 is opposite to the direction of the applied electric field of the second piezoelectric ceramic sheet 230 , The polarization direction of the first piezoelectric ceramic sheet 210 is opposite to the polarization direction of the second piezoelectric ceramic sheet 230, and the polarization direction of the first piezoelectric ceramic sheet 210 is the same as the voltage direction of the AC power supply 400. The electroceramic sheet 210 is elongated, causing the first piezoelectric ceramic sheet 210 to bend in the direction of the diaphragm 220; the polarization direction of the second piezoelectric ceramic sheet 230 is opposite to the voltage direction of the AC power supply 400, and the second piezoelectric ceramic sheet 230 The shortening causes the second piezoelectric ceramic sheet 210 to bend away from the diaphragm 220. The diaphragm 220 is also deformed under the action of the first piezoelectric ceramic sheet 210 and the second piezoelectric ceramic sheet, so that the piezoelectric ceramic unit 200 exhibits the first bending state.

As shown in FIG. 4, when the alternating voltage direction of the AC power supply 400 is output from the second electrode 420 and returns to the first electrode 410, the polarization direction of the first piezoelectric ceramic sheet 210 is opposite to the voltage direction of the AC power supply 400 , The first piezoelectric ceramic sheet 210 is shortened, so that the first piezoelectric ceramic sheet 210 is bent in a direction away from the diaphragm 220, and the second piezoelectric ceramic sheet 230 is elongated, so that the second piezoelectric ceramic sheet 210 faces the diaphragm 220. When the direction is bent, the diaphragm 220 is also deformed under the action of the first piezoelectric ceramic sheet 210 and the second piezoelectric ceramic sheet, so that the piezoelectric ceramic unit 200 presents a second bending state.

The electronic device 20 can control the alternating voltage of the AC power supply 400 to switch the piezoelectric ceramic unit 200 between the first bending state and the second bending state to control the piezoelectric ceramic unit 200 to perform deformation movement.

Wherein, the deformation amplitude of the piezoelectric ceramic monomer 200 may be related to the voltage amplitude of the alternating voltage. For example, the deformation amplitude of the piezoelectric ceramic monomer 200 may be proportional to the voltage amplitude of the alternating voltage. When the voltage amplitude of the alternating voltage of the electronic device 20 controlling the alternating power supply 400 increases, the deformation amplitude of the piezoelectric ceramic monomer 200 increases accordingly, which can drive stronger air fluctuations to form a greater volume, thereby increasing The loudness of the audio signal. Of course, the deformation amplitude of the piezoelectric ceramic monomer 200 can be inversely proportional to the voltage amplitude of the alternating voltage. At this time, the electronic device 20 can increase the piezoelectric ceramic monomer by reducing the voltage amplitude of the alternating voltage. Deformation amplitude of 200.

In the embodiment of the present application, the first piezoelectric ceramic sheet 210 and the second piezoelectric ceramic sheet 230 are arranged in the first area, so that the second area of the diaphragm 220 is exposed, so that the first area is exposed to the first piezoelectric ceramic sheet 210. The force applied by the second piezoelectric ceramic sheet 230 is deformed, and the second area remains in the original state without external force, which can increase the deformation amplitude of the diaphragm 220 compared to the second area without being exposed.

It should be noted that the piezoelectric ceramic monomer 200 may also only include the first piezoelectric ceramic sheet 210 and the diaphragm 220, and the first piezoelectric ceramic sheet 210 can drive the diaphragm 210 to deform. Of course, the piezoelectric ceramic unit 200 may also include a plurality of first piezoelectric ceramic sheets 210 and/or a plurality of second piezoelectric ceramic sheets 230, and the first piezoelectric ceramic sheets 210 may be the number of the second piezoelectric ceramic sheets 220. It can be set according to the actual situation, which is not limited in the embodiment of the present application.

Please continue to refer to FIG. 1, at least four piezoelectric ceramic monomers of the at least five piezoelectric ceramic monomers 200 are located at the edge position of the electronic device 20, and at least one piezoelectric ceramic monomer 200 is located in the display area of the display screen. For example, the electronic device 20 may include five piezoelectric ceramic monomers 200, and the five piezoelectric ceramic monomers 200 may all be arranged on a display screen such as the display screen 600, or all of them may be arranged on a housing such as the housing 900. A part of the display screen 600 may be provided, and a part of the housing 900 may be provided.

As shown in FIG. 5, FIG. 5 is a first cross-sectional schematic diagram of the electronic device shown in FIG. 1 along the P-P direction. The display screen 600 may have a regular shape, such as a rectangular parallelepiped structure or a rounded rectangular structure. The display screen 600 has four sides and four connecting parts. Two adjacent sides are connected by one connecting part, and one connecting part connects two The sides to form a corner.

The display screen 600 may have a display surface and a non-display surface opposite to each other. The five piezoelectric ceramic monomers 200 are arranged on the non-display surface of the display screen 600, and the fixing method may be achieved by bonding. For example, glue may be applied to the first end surface of the first piezoelectric ceramic sheet 210, and the first end surface of the first piezoelectric ceramic sheet 210 may be attached to the non-display surface of the display screen 600. A first gap 820 is left between the first end surface of the first piezoelectric ceramic sheet 210 and the non-display surface. The first gap 820 can provide a deformation space for the piezoelectric ceramic unit 200 so that the piezoelectric ceramic unit 200 can face the non-display surface. The direction of the display surface is curved, and it may also be curved in a direction away from the non-display surface. In some embodiments, glue may be applied to the second area of the diaphragm 220, the second area is bonded to the non-display surface of the display screen 600, and the first piezoelectric ceramic sheet 210 is in contact with the non-display surface. Fixing the piezoelectric ceramic monomer 200 can make the first piezoelectric ceramic sheet 210 bend freely. Only fixing the two sides of the diaphragm 220 can also increase the bending amplitude of the diaphragm 220 when the diaphragm 220 is acted on by the piezoelectric ceramic sheet. .

Among them, four piezoelectric ceramic monomers 200 are arranged at the position of the connecting portion of the display screen 600, and one piezoelectric ceramic monomer 200 is arranged on one connecting portion. The other one can be set in the display area of the display screen 600, for example, it can be set in the center position of the display area, and of course it can also be set in other positions of the display area. It should be noted that the display screen 600 may also have an irregular shape.

Alternatively, a gap may not be provided between the non-display surface of the display screen 600 and the piezoelectric ceramic monomer 200 in the above-mentioned application embodiment. For example, the piezoelectric ceramic monomer 200 can be directly fixed on the non-display surface of the display screen 600, and the fixing method can be achieved by bonding. For example, glue may be applied to the first end surface of the first piezoelectric ceramic sheet 210, and the first end surface of the first piezoelectric ceramic sheet 210 may be attached to the non-display surface of the display screen 600. When the piezoelectric ceramic monomer 200 is bent toward the non-display surface of the display screen 600, the display screen 600 can be driven to bend toward the outside. At this time, the bending state of the display screen 600 is the same as the first bending state of the piezoelectric ceramic monomer 200; When the electroceramic unit is bent toward the non-display surface away from the display screen 600, the display screen 600 can be driven to bend toward the outside. At this time, the bending state of the display screen 600 is the same as the second bending state of the piezoelectric ceramic unit 200 described above. The piezoelectric ceramic monomer 200 can drive the display screen 600 to switch between different bending states under the alternating change of the output voltage direction of the AC power supply 400, so that the air around the display screen 600 can flow and make sound. Piezoelectric ceramic monomers 200 in different positions can drive different positions of the display screen 600 to vibrate, so that the sound of the electronic device 20 is emitted from different positions of the display screen 600, and when multiple positions sound together, a stereo effect can be created.

In addition, it should be noted that due to the larger size of the display screen 600 and the greater rigidity of the display screen 600, the display screen 600 has a better effect of generating sound signals when vibrating at high frequencies, while generating sound signals when vibrating at low frequencies. The effect is poor. That is, when the display screen 600 is used to generate high-pitched sound, the sound effect is better; when used to generate low-pitched sound, the sound effect is poor. Based on this, the display screen 600 can be controlled to emit sounds greater than or equal to 300 Hz and less than 20 kHz, and other sound emitting devices such as speakers inside the electronic device 20 can be controlled to generate sound signals below 300 Hz, and the two can cooperate to improve the sound effect of the electronic device.

In some embodiments, the display screen 600 may be made of a flexible material, which can increase the bending amplitude of the display screen 600 under the same driving force, thereby enhancing the sound effect of the display screen 600.

Please continue to refer to FIG. 1, the electronic device 20 may further include a housing such as a housing 900 on which the display screen 400 is installed. The housing 900 may be formed of plastic, glass, ceramic, fiber composite material, metal (for example, stainless steel, aluminum, etc.), other suitable materials, or a combination of any two or more of these materials. Wherein, the housing 900 has opposite inner and outer surfaces, the inner surface may be the side where the components of the electronic device 20 are mounted, and the outer surface is the outer surface that may be located outside the electronic device 20. For example, the outer surface of the housing 900 is the side visible to the user, and the inner surface of the substrate 900 is the side invisible to the user.

Alternatively, as shown in FIG. 6, FIG. 6 is a schematic diagram of a second cross-sectional structure of the electronic device shown in FIG. 1 along the P-P direction. The piezoelectric ceramic monomer 200 of the embodiment of the above application can also be directly fixed on the inner surface of the housing 900, which can be achieved by bonding. For example, the fourth end surface of the second piezoelectric ceramic sheet 230 may be directly bonded to the inner surface of the housing 900. Similarly, a second gap 840 is left between the fourth end surface and the inner surface of the second piezoelectric ceramic sheet 220. The second gap 840 can provide a deformation space for the piezoelectric ceramic unit 200, so that the piezoelectric ceramic unit 200 can It is curved toward the inner surface, and it can also be curved toward the direction away from the inner surface. In some embodiments, glue may be applied to the second area of the diaphragm 220, the second area is bonded to the inner surface of the housing 900, and the second piezoelectric ceramic sheet 230 abuts against the inner surface, which can be fixed and pressed. The electroceramic monomer 200 can also bend the second piezoelectric ceramic sheet 230 freely. Only the two sides of the diaphragm 220 can be fixed, and the bending amplitude of the diaphragm 220 can be increased when the diaphragm 220 is acted on by the piezoelectric ceramic sheet.

The housing 200 may include a substrate, and the substrate may serve as a carrier of the electronic device 20. For example, the substrate may carry the circuit board of the electronic device 20, a camera, a piezoelectric ceramic monomer and other devices. In some embodiments, the substrate may include an inner surface and an outer surface, and the inner surface of the substrate and the outer surface of the substrate may be disposed opposite to each other. The inner surface of the substrate may be the side on which each device of the electronic device 20 is mounted, and the outer surface of the substrate may be located outside the electronic device 20. For example, the outer surface of the substrate is the side visible to the user, and the inner surface of the substrate is the side invisible to the user.

The housing 200 may include a frame, the frame may be disposed on the inner surface of the substrate, and the frame may be disposed around the periphery of the substrate. The frame surrounds the periphery of the substrate, and a storage space can be formed on the substrate to accommodate the components of the electronic device 20. In some embodiments, the frame and the substrate may be integrally formed, such as by injection molding.

Among them, at least one piezoelectric ceramic monomer of the at least five piezoelectric ceramic monomers 200 may be disposed on the substrate, and the piezoelectric ceramic monomer 200 may be located in the display area of the display screen 600, for example, may be located in the center of the display area. . At least four piezoelectric ceramic monomers 200 may be arranged at the edge of the housing 900, for example, may be arranged on the frame of the housing 900.

As shown in FIG. 7, FIG. 7 is a schematic diagram of a third cross-sectional structure of the electronic device shown in FIG. 1 along the P-P direction. The at least five piezoelectric ceramic monomers 200 in the above-mentioned application embodiment can also be arranged on the display screen 600 and the housing 900 at the same time. For example, at least five piezoelectric ceramic monomers 200 can be divided into two parts, one of which is arranged on the non-display surface of the display screen 600; the other part is arranged on the inner surface of the housing 900, and the other part of the piezoelectric ceramic monomers can be It is located at a distance between a part of the piezoelectric ceramic monomer 200, and the projection of the other part of the piezoelectric ceramic monomer 200 on the display screen is located in the display area. In this way, the piezoelectric ceramic monomer 200 arranged on the non-display surface of the display screen 600 can emit sound toward the display surface of the display screen 600, and the piezoelectric ceramic monomer 200 arranged on the inner surface of the housing 900 can be turned toward the housing 900. The sound is emitted in the direction of the outer surface, which further improves the sound effect of the electronic device 20.

The electronic device 20 may also be integrated with a processor, a memory and other devices. The processor may be used to process various operations of the electronic device 20. The processor is electrically connected to the display screen 600 and the piezoelectric ceramic unit 200, respectively.

The processor 401 is the control center of the electronic device 20. It uses various interfaces and lines to connect the various parts of the entire electronic device. It executes the electronic device by running or loading the computer program stored in the memory 402 and calling the data stored in the memory 402. Various functions of the device 20 and data are processed, so as to monitor the electronic device 20 as a whole. The processor may be used to determine the value of each piezoelectric ceramic monomer according to the distance between the preset object image and each piezoelectric ceramic monomer when the display area 620 of the display screen 600 displays a preset object image. Voice state.

It is understandable that the electronic device 20 can continuously acquire the preset object image displayed on the display screen while the display screen is displaying the image, and determine the sounding state of each piezoelectric ceramic monomer to emit an image corresponding to the preset object image. Position-adapted sound to create a stereo effect in which the sound moves with the screen, so that users can truly immerse themselves in the audio and video, and give users an immersive listening experience. In some embodiments, the electronic device 20 may display images on the display screen 600 in real time according to a preset sequence. The preset sequence may be the sequence set by the producer of the multi-frame image, or may be set by the user himself. Set order.

Among them, the sounding state can include the sounding state and the non-sounding state. When the piezoelectric ceramic monomer 200 is in a sound state, the processor can control the AC power supply 400 to output an AC voltage, so that the piezoelectric ceramic monomer 200 is switched between the first bending state and the second bending state, so that the piezoelectric ceramic monomer 200 makes a sound. When the piezoelectric ceramic unit 200 is in a silent state, the processor can control the AC power supply 400 not to output an AC voltage, so that the piezoelectric ceramic unit 200 is in a stationary state, so that the piezoelectric ceramic unit 200 does not emit sound. Of course, the processor can also control the sounding state of the piezoelectric ceramic monomer 200 in other ways, so that it emits sound or does not emit sound.

In the embodiment of the present application, by setting at least five piezoelectric ceramic monomers, the sounding state of each piezoelectric ceramic monomer can be determined according to the distance between the piezoelectric ceramic monomer and the preset object image displayed on the display screen, so that the pressure The sound emitted by the electric ceramic monomer changes with the position of the preset object image to improve the sound playback effect of the electronic device.

For example, as shown in FIG. 8, FIG. 8 is a diagram of a first application scene in which a preset object image is displayed on a display screen in an embodiment of the application. At time t1, the preset object image is displayed at the first position on the display screen 600. The processor can determine the distance between each piezoelectric ceramic unit 200 and the preset object image to determine each piezoelectric ceramic unit. The vocal state of the body 200. For example, the electronic device 20 may be provided with piezoelectric ceramic monomer A1, piezoelectric ceramic monomer A2, piezoelectric ceramic monomer A3, piezoelectric ceramic monomer A4, and piezoelectric ceramic monomer A5, and the processor can measure each pressure. The distance between the electroceramic monomer and the preset object image, for example, the distance between the piezoelectric ceramic monomer A1 and the preset object image is d1, the distance between the piezoelectric ceramic monomer A2 and the preset object image is d2, and the piezoelectric ceramic The distance from the monomer A3 to the preset object image is d3, the distance from the piezoelectric ceramic monomer A4 to the preset object image is d4, and the distance from the piezoelectric ceramic monomer A5 to the preset object image is d5. The processor may determine whether the five distance values are less than the first preset value according to the first preset value. The first preset value may be a preset value, which may be set before the electronic device 20 leaves the factory, or may be a later period. Set by the user.

Wherein, the distance between each piezoelectric ceramic monomer 200 and the preset object image may be the actual distance between the piezoelectric ceramic monomer 200 and the display position of the preset object image, or it may be the piezoelectric ceramic monomer. The distance between the projection of 200 on the display screen and the display position of the preset object image. When calculating the distance between the piezoelectric ceramic monomer 200 and the preset object image, the distance between the center position of the piezoelectric ceramic monomer 200 and the center position of the preset object image can be calculated, which can be the edge position of the piezoelectric ceramic monomer The distance from the edge position of the preset object image can be determined by using the same measurement method for each piezoelectric ceramic monomer, which is not limited in the embodiment of the present application.

When the distance value determined by the processor is less than the first preset value, it is determined that the piezoelectric ceramic monomer is in a sound state. For example, the processor determines that the distance between the piezoelectric ceramic monomer A1 and the preset object image is d1 and piezoelectric If the distance d2 between the ceramic monomer A2 and the preset object image is less than the first preset value, it is determined that the piezoelectric ceramic monomer A1 and the piezoelectric ceramic monomer A2 are in the sound state. At this time, the processor can control the piezoelectric ceramic monomer. The body A1 and the piezoelectric ceramic monomer A2 emit sound together.

When the distance value judged by the processor is greater than or equal to the first preset value, it is determined that the piezoelectric ceramic monomer is in a silent state. For example, the processor judges that the distance between the piezoelectric ceramic monomer A3 and the preset object image is d3 , The distance between the piezoelectric ceramic monomer A4 and the preset object image is d4 and the distance between the piezoelectric ceramic monomer A5 and the preset object image is d5 greater than or equal to the first preset value, then the piezoelectric ceramic monomer A3, The piezoelectric ceramic monomer A4 and the piezoelectric ceramic monomer A5 are in a silent state. At this time, the processor can control the piezoelectric ceramic monomer A3, the piezoelectric ceramic monomer A4, and the piezoelectric ceramic monomer A5 to not emit any sound.

In some embodiments, the processor may also be used to determine the piezoelectric ceramic monomer 200 according to the distance between the preset object image and each piezoelectric ceramic monomer when the piezoelectric ceramic monomer is in a sound state. The sound effect mode of the sound produced.

As shown in Figure 8, when the processor determines that the distance from the piezoelectric ceramic monomer A1 to the preset object image is d1 and the distance from the piezoelectric ceramic monomer A2 to the preset object image is less than the first preset value, then Determine that the piezoelectric ceramic monomer A1 and the piezoelectric ceramic monomer A2 are in a sound state, and further determine the relationship between d1 and d2 and the second preset value. For example, d1 in the embodiment of the present application is smaller than the second preset value, If d2 is greater than the second preset value, the processor can control the volume of the corresponding piezoelectric ceramic monomer A1 to be greater than the third preset value, and control the volume of the corresponding piezoelectric ceramic monomer A2 to be greater than the fourth preset value and less than The third preset value. Among them, the third preset value is greater than the fourth preset value. At this time, the volume of the piezoelectric ceramic monomer A1 is greater than the volume of the piezoelectric ceramic monomer A2, so that the piezoelectric ceramic monomer A1 and the piezoelectric ceramic monomer A2 emit The sound of different volume can create a stereo effect.

The processor in the above application embodiment may also be used to control the pitch of the piezoelectric ceramic monomer to be greater than the fifth preset value when the distance is less than the second preset value; when the distance is greater than or equal to the second preset value, At the preset value, the pitch of the piezoelectric ceramic monomer is controlled to be greater than the sixth preset value and less than the fifth preset value. For example, the processor may control the pitch of the corresponding piezoelectric ceramic monomer A1 to be greater than the fifth preset value, and control the pitch of the corresponding piezoelectric ceramic monomer A2 to be greater than the sixth preset value and less than the fifth preset value . Among them, the fifth preset value is greater than the sixth preset value. At this time, the pitch of the piezoelectric ceramic monomer A1 is higher than the pitch of the piezoelectric ceramic monomer A2, so that the piezoelectric ceramic monomer A1 and the piezoelectric ceramic monomer The sound of different tones produced by A2, the sound produced by the piezoelectric ceramic monomer A2 can be used as the auxiliary sound of the piezoelectric ceramic monomer A1, which can improve the sound playback effect of the electronic device, so that the user is truly immersed in the sound played by the electronic device in.

It should be noted that, when the processor determines that there are more than two piezoelectric ceramic monomers that are in the sound-emitting state and there are multiple piezoelectric ceramic monomers less than the second preset value, the processor can convert the piezoelectric ceramic monomers The piezoelectric ceramic monomers whose distance to the preset object image is less than the second preset value are controlled according to the distance value from large to small, and the volume and/or pitch of the piezoelectric ceramic monomer corresponding to the distance value is controlled from small to large.

As shown in FIG. 9, FIG. 9 is a diagram of a second application scene in which a preset object image is displayed on a display screen in an embodiment of the application. At time t2, the preset object image is displayed in the second position of the display screen 600. At this time, the distance between the preset object image and the piezoelectric ceramic monomer A1 is d3, the distance to the piezoelectric ceramic monomer A2 is d4, and the distance to the piezoelectric ceramic monomer A2 is d4. The distance of electroceramic unit A3 is d5, the distance to piezoelectric ceramic unit A4 is d6, and the distance to piezoelectric ceramic unit A5 is d7, where the values of d3, d4 and d5 are less than the first preset value and d3 The value of sum d4 is smaller than the second preset value, and d3 is smaller than d4. After the processor obtains the distance value between each piezoelectric ceramic monomer and the preset object image, it can control the piezoelectric ceramic monomer A1 and the piezoelectric ceramic monomer A2 to emit volume at the third preset value and the fourth preset value. And the volume of the sound emitted by the piezoelectric ceramic monomer A1 is greater than the volume of the sound emitted by the piezoelectric ceramic monomer A2. For example, the processor can control the piezoelectric ceramic unit A3 to emit a sound at a first volume, the piezoelectric ceramic unit A1 can emit a sound at a second volume, and the piezoelectric ceramic unit A2 can emit a sound at a third volume, where the first volume It is greater than the second volume and the third volume, and the second volume is greater than the third volume. At this time, the volume of the sound emitted by the piezoelectric ceramic monomer A3 is the largest, followed by the volume of the sound emitted by the piezoelectric ceramic monomer A1, and the volume of the sound emitted by the piezoelectric ceramic monomer A3 is the smallest, showing a kind of volume. Step-down surround sound.

At the same time, the processor can also control the piezoelectric ceramic monomer A1 and the piezoelectric ceramic monomer A2 to emit a sound whose tone is between the fifth preset value and the sixth preset value, and the sound emitted by the piezoelectric ceramic monomer A1 The pitch is higher than the pitch of the sound emitted by the piezoelectric ceramic monomer A2. For example, the processor can control the piezoelectric ceramic unit A3 to emit a sound with a first tone, the piezoelectric ceramic unit A1 can emit a sound with a second tone, and the piezoelectric ceramic unit A2 can emit a sound with a third tone, where the first tone Greater than the second tone and the third tone, the second tone is greater than the third tone. At this time, the pitch of the sound emitted by the piezoelectric ceramic monomer A3 is the highest, the tone of the sound emitted by the piezoelectric ceramic monomer A1 is second, and the sound emitted by the piezoelectric ceramic monomer A3 has the smallest pitch, showing a high pitch, A stereo effect in which midrange and bass are coordinated.

In addition, what is not shown in the figure, the electronic device may also include a control circuit, the control circuit may include an audio control sub-circuit, the audio control sub-circuit can be used to control whether the piezoelectric ceramic monomer 200 vibrates, the vibration amplitude and the vibration frequency, the audio control sub-circuit The circuit can be electrically connected to the processor and the piezoelectric ceramic monomer 200, and the audio control sub-circuit can control whether the piezoelectric ceramic monomer 200 emits sound, the volume of the sound, and the tone size by controlling the vibration state of the piezoelectric ceramic monomer 200 Etc., where the audio sub-control circuit may include a filter or a power amplifier.

The embodiment of the present application also provides a method for controlling the utterance of an electronic device. Please refer to FIG. 10. FIG. 10 is a schematic flowchart of the method for controlling the utterance of an electronic device provided by an embodiment of the application. The method for controlling the utterance of an electronic device can be applied to, for example, In the electronic device 20 described in the above application embodiment, the sound control method of the electronic device includes:

101. Acquire a preset object image displayed on the display screen.

When using an electronic device to watch a video, the display area of the display screen can sequentially display the target scene images in the order of video playback, and the electronic device can obtain one of the preset object images containing the preset object. For example, the electronic device can acquire a frame of the preset object image in the following manner: the electronic device can acquire the image displayed on the display area, and respectively recognize the preset object image from the image.

The preset object image can be an image of a preset object. For example, if the preset object is a sports car, the preset object image is a sports car image, the preset object is a heroine, the preset object image is an image of the heroine, and the preset object is a robot. Then preset the image of the robot with the object image. The electronic device may obtain a preset object image in advance, and recognize the preset object image to obtain m key points. It should be noted that the preset object image can be one object or multiple objects. For example, the image of a sports car and the image of the heroine can be set as the preset object image at the same time, or the image of the hero and the heroine can be set at the same time. Set as the preset object image, which can be set according to the scene effect you want to present.

The electronic device can recognize a preset object image from the displayed image according to the m key points. For example, the electronic device can set a feature recognition model in advance, and the feature recognition model can perform feature recognition on the acquired image. For example, the electronic device may preset a convolutional neural network model, and use the convolutional network model to recognize the key points of the preset object image in the image to obtain multiple feature values of the preset object image. Identify the preset object image from the image.

In this solution, the target scene image refers to the image to be played by the user through the electronic device, and the target scene image can be presented in the display area of the display screen.

In addition, the content of the target scene image is not specifically limited in the embodiments of the present application. For example, the target scene image may be a sports car driving on a highway, a sports car driving on a country road, or a sports car in a racing track. Driving and so on. Moreover, the method of the embodiment of the present application can be used in any scene where a display screen is required for image display. For example, using video playback software for video playback, using live broadcast software for live streaming, etc.

102. Calculate the distance between the preset object image and each piezoelectric ceramic monomer according to the position of the preset object image on the display screen.

103. Determine the sounding state of each piezoelectric ceramic monomer according to the distance between the preset object image and each piezoelectric ceramic monomer.

For example, at the first moment, the electronic device can recognize the display position of the preset object image to identify the first position, and calculate the distance between the first position and each piezoelectric ceramic monomer, according to the first position The distance between each piezoelectric ceramic monomer determines the sound state of each piezoelectric ceramic, such as determining whether the piezoelectric ceramic monomer is in a sound state or not in a sound state, how loud the sound is when the sound is made, and more For high-pitched sounds, etc., for details, please refer to the scene structure diagrams and descriptions of FIGS. 6 and 7 described above, which will not be repeated here.

In some embodiments, the electronic device may determine whether the distance between the preset object image and the piezoelectric ceramic monomer is less than a first preset value; when the distance is less than the first preset value, determine the pressure The electric ceramic monomer is in a sounding state; when the distance is greater than or equal to the first preset value, it is determined that the piezoelectric ceramic monomer is in a non-sounding state.

An embodiment of the present application also provides a storage medium that stores a computer program, and when the computer program runs on a computer, the computer executes the sound control method of the electronic device in any of the above-mentioned embodiments. For example: acquiring a preset object image displayed on the display screen; according to the position of the preset object image on the display screen, calculating the preset object image and each piezoelectric ceramic monomer Distance; according to the distance between the preset object image and each piezoelectric ceramic monomer, the sounding state of each piezoelectric ceramic monomer is determined.

In the embodiment of the present application, the storage medium may be a magnetic disk, an optical disk, a read only memory (Read Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

It should be noted that for the sound control method of the electronic device in the embodiment of this application, ordinary testers in the field can understand that all or part of the process of implementing the sound control method of the electronic device in the embodiment of this application can be implemented through a computer program. Control related hardware to complete, the computer program can be stored in a computer readable storage medium, such as stored in the memory of an electronic device, and executed by at least one processor in the electronic device, and may include Such as the flow of an embodiment of a method for controlling sound emission of an electronic device. Among them, the storage medium can be a magnetic disk, an optical disc, a read-only memory, a random access memory, and so on.

The electronic device and its sound control method provided by the embodiments of the present application have been described in detail above. Specific examples are used in this article to describe the principle and implementation of the application, and the description of the above examples is only used to help understand the application. At the same time, for those skilled in the art, according to the idea of the application, there will be changes in the specific implementation and the scope of application. In summary, the content of this specification should not be construed as a limitation to the application.

Claims

An electronic device, which includes:

Display screen, used to display pictures;

At least five piezoelectric ceramic monomers, each piezoelectric ceramic monomer is used to emit sound, at least four piezoelectric ceramic monomers are located at the edge of the electronic device, and at least one piezoelectric ceramic monomer The body is located in the display area of the display screen; and

The processor is electrically connected to the display screen and the piezoelectric ceramic monomer respectively, and the processor is configured to, when a preset object image is displayed on the display screen, according to the preset object image The distance between the position on the display screen and each piezoelectric ceramic cell determines the sound state of each piezoelectric ceramic cell.
The electronic device according to claim 1, wherein the sounding state includes a sounding state and a non-sounding state; the processor is configured to determine the piezoelectric ceramic unit when the distance is less than a first preset value The body is in a sound state, and when the distance is greater than or equal to the first preset value, it is determined that the piezoelectric ceramic monomer is in a sound state.
2. The electronic device according to claim 2, wherein the processor is further configured to determine the sound effect of the sound emitted by the piezoelectric ceramic unit according to the distance when the piezoelectric ceramic unit is in a sound state mode.
The electronic device according to claim 3, wherein the sound effect mode comprises a volume, and the processor is configured to control the volume of the sound emitted by the piezoelectric ceramic monomer to be greater than when the distance is less than a second preset value The third preset value; when the distance is greater than or equal to the second preset value and less than the first preset value, the volume of the sound emitted by the piezoelectric ceramic monomer is controlled to be greater than the fourth preset value and less than The third preset value.
The electronic device according to claim 4, wherein the sound effect mode includes a pitch, and the processor is configured to control the pitch of the sound emitted by the piezoelectric ceramic monomer to be high when the distance is less than a second preset value At the fifth preset value; when the distance is greater than or equal to the second preset value and less than the first preset value, the pitch of the sound emitted by the piezoelectric ceramic monomer is controlled to be higher than the sixth preset value And lower than the fifth preset value.
The electronic device according to claim 5, wherein, when the processor determines that there are a plurality of piezoelectric ceramic monomers smaller than the second preset value, the processor is configured to perform according to the plurality of piezoelectric ceramic monomers smaller than the second preset value. The distance values of the piezoelectric ceramic monomers of different values are in descending order, and the pitch and/or volume of the distance values of the plurality of piezoelectric ceramic monomers that are smaller than the second preset value are controlled from small to large.
The electronic device according to claim 1, wherein the electronic device further comprises an audio control sub-circuit board, the audio control sub-circuit is electrically connected to the processor and the at least five piezoelectric ceramic monomers, the The audio control sub-circuit is used to control the vibration state of the at least five piezoelectric ceramic monomers to control whether the at least five piezoelectric ceramic monomers emit sound, the volume of the sound, and the tone of the sound.
The electronic device according to claim 1, wherein the piezoelectric ceramic monomer includes a first piezoelectric ceramic sheet, a diaphragm, and a second piezoelectric ceramic sheet that are stacked, and the diaphragm includes a first region and a second piezoelectric ceramic sheet. In the second zone, the second zone is arranged on the periphery of the first zone, and the first piezoelectric ceramic sheet and the second piezoelectric ceramic sheet are arranged in the first zone so that the second zone Naked.
8. The electronic device according to claim 8, wherein the electronic device further comprises an alternating current power source, and the alternating current power source comprises a first electrode and a second electrode with different potential values;

The first piezoelectric ceramic sheet includes a first end face and a second end face opposite to each other. The first end face is electrically connected to the first electrode, and the second end face is connected to the first area of the diaphragm. The second end surface is electrically connected to the second electrode;

The second piezoelectric ceramic sheet includes a third end surface and a fourth end surface opposed to each other, the third end surface is connected to the first area of the diaphragm and the third end surface is electrically connected to the second electrode, The fourth end surface is electrically connected to the first electrode.
The electronic device according to claim 9, wherein the at least five piezoelectric ceramic monomers are arranged on the non-display surface of the display screen, and at least four piezoelectric ceramic monomers are arranged on the non-display surface of the display screen. At the edge position, at least one piezoelectric ceramic monomer is provided in the display area of the display screen, and a first gap is provided between the at least five piezoelectric ceramic monomers and the non-display surface of the display screen, so The first gap is used to provide a deformation space for the piezoelectric ceramic monomer.
The electronic device according to claim 9, wherein the at least five piezoelectric ceramic monomers are arranged on the non-display surface of the display screen, and at least four piezoelectric ceramic monomers are arranged on the non-display surface of the display screen. At the edge position, at least one piezoelectric ceramic monomer is arranged in the display area of the display screen, and the at least five piezoelectric ceramic monomers are used to drive the display screen to vibrate, so that the display screen emits sound.
The electronic device according to claim 9, wherein the electronic device further comprises a housing, the at least five piezoelectric ceramic monomers are arranged on the inner surface of the housing, and at least four piezoelectric ceramic monomers are provided on the inner surface of the housing. The body is arranged at the edge of the housing, at least one piezoelectric ceramic monomer is arranged on the housing and located in the display area of the display screen, and the piezoelectric ceramic monomer is connected to the housing A second gap is provided between the inner surfaces, and the second gap is used to provide a deformation space for the piezoelectric ceramic monomer.
A sound control method of an electronic device, wherein the electronic device includes a display screen for displaying pictures and at least five piezoelectric ceramic monomers, each of the piezoelectric ceramic monomers is used to emit sound, and at least four piezoelectric ceramic monomers are used to emit sound. The piezoelectric ceramic monomer is located at the edge of the electronic device, and at least one piezoelectric ceramic monomer is located in the display area of the display screen;

The method includes:

Acquiring a preset object image displayed on the display screen;

Calculating the distance between the position of the preset object image on the display screen and each piezoelectric ceramic monomer according to the position of the preset object image on the display screen;

According to the distance between the position of the preset object image on the display screen and each piezoelectric ceramic monomer, the sound state of each piezoelectric ceramic monomer is determined.
The method for controlling sound production of an electronic device according to claim 13, wherein the predetermined object image is determined based on the distance between the position of the preset object image on the display screen and each piezoelectric ceramic monomer. The sounding state of the piezoelectric ceramic monomer includes:

Judging whether the distance between the position of the preset object image on the display screen and the piezoelectric ceramic monomer is less than a first preset value;

When the distance is less than the first preset value, determining that the piezoelectric ceramic monomer is in a sound-emitting state;

When the distance is greater than or equal to the first preset value, it is determined that the piezoelectric ceramic monomer is in a non-sound state.
14. The sound control method of an electronic device according to claim 14, wherein when the distance is less than the first preset value, after determining that the piezoelectric ceramic monomer is in a sound state, the method further comprises:

When the piezoelectric ceramic unit is in a sound state, the sound effect mode of the sound emitted by the piezoelectric ceramic unit is determined according to the distance.
15. The sound control method of an electronic device according to claim 15, wherein the determining the sound effect mode of the sound emitted by the piezoelectric ceramic monomer according to the distance comprises:

When the distance is less than the second preset value, controlling the volume of the sound emitted by the piezoelectric ceramic monomer to be greater than the third preset value;

When the distance is greater than or equal to the second preset value and less than the first preset value, the volume of the sound emitted by the piezoelectric ceramic monomer is controlled to be greater than the fourth preset value and less than the third preset value value.
15. The sound control method of an electronic device according to claim 15, wherein the determining the sound effect mode of the sound emitted by the piezoelectric ceramic monomer according to the distance comprises:

When the distance is less than the second preset value, controlling the pitch of the sound emitted by the piezoelectric ceramic monomer to be higher than the fifth preset value;

When the distance is greater than or equal to the second preset value and less than the first preset value, the pitch of the sound emitted by the piezoelectric ceramic monomer is higher than the sixth preset value and lower than the fifth preset value. default value.
15. The sound control method of an electronic device according to claim 15, wherein the determining the sound effect mode of the sound emitted by the piezoelectric ceramic monomer according to the distance comprises:

When the distance is less than the second preset value, the volume of the sound emitted by the piezoelectric ceramic monomer is controlled to be greater than the third preset value, and the tone of the sound emitted by the piezoelectric ceramic monomer is controlled to be higher than the fifth preset value. default value;

When the distance is greater than or equal to the second preset value and less than the first preset value, the volume of the sound emitted by the piezoelectric ceramic monomer is controlled to be greater than the fourth preset value and less than the third preset value And control the pitch of the sound emitted by the piezoelectric ceramic monomer to be higher than the sixth preset value and lower than the fifth preset value.
18. The sound control method of an electronic device according to claim 18, wherein when the distance is less than a second preset value, the volume of the sound emitted by the piezoelectric ceramic monomer is controlled to be greater than a third preset value, and control The step that the pitch of the sound emitted by the piezoelectric ceramic monomer is higher than the fifth preset value includes:

When there are multiple piezoelectric ceramic monomers smaller than the second preset value, the plurality of piezoelectric ceramic monomers are controlled in descending order of the distance values of the plurality of piezoelectric ceramic monomers smaller than the second preset value. The pitch and volume of the distance value of the piezoelectric ceramic monomer that are smaller than the second preset value are from low to high.
A storage medium having a computer program stored thereon, wherein when the computer program runs on a computer, the computer is caused to execute the sound control method of an electronic device according to any one of claims 13 to 19.