CN110572502A - Electronic equipment and sound production control method thereof - Google Patents
Electronic equipment and sound production control method thereof Download PDFInfo
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- CN110572502A CN110572502A CN201910839012.6A CN201910839012A CN110572502A CN 110572502 A CN110572502 A CN 110572502A CN 201910839012 A CN201910839012 A CN 201910839012A CN 110572502 A CN110572502 A CN 110572502A
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- 239000000178 monomer Substances 0.000 claims abstract description 118
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- 238000004519 manufacturing process Methods 0.000 claims description 9
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- 239000000758 substrate Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 11
- 230000005236 sound signal Effects 0.000 description 8
- 230000010287 polarization Effects 0.000 description 6
- 238000004590 computer program Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
- H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The embodiment of the application provides electronic equipment and a sound production control method thereof, wherein the electronic equipment comprises a display screen for displaying pictures, at least five piezoelectric ceramic monomers and a processor, each piezoelectric ceramic monomer is used for producing sound, at least four piezoelectric ceramic monomers are positioned at the edge of the electronic equipment, and at least one piezoelectric ceramic monomer is positioned in a display area of the display screen; the processor is respectively electrically connected with the display screen and the piezoelectric ceramic single bodies, and the processor is used for determining the sounding state of each piezoelectric ceramic single body according to the position of the preset object image on the display screen and the distance between each piezoelectric ceramic single body when the preset object image is displayed on the display screen. The embodiment of the application can improve the sound playing effect of the electronic equipment.
Description
Technical Field
the present disclosure relates to electronic technologies, and in particular, to an electronic device and a sound control method thereof.
Background
With the development of communication technology, electronic devices such as smart phones are becoming more and more popular. Electronic equipment is usually provided with a speaker, and the speaker can output an audio signal corresponding to a picture on a display screen, but the audio signal can only be output at a position corresponding to the speaker, and the effect of sound playing is poor.
Disclosure of Invention
The embodiment of the application provides electronic equipment and a sound production control method thereof, which can improve the sound playing effect of the electronic equipment.
An embodiment of the present application provides an electronic device, including:
The display screen is used for displaying pictures;
At least five piezoelectric ceramic monomers, wherein each piezoelectric ceramic monomer is used for making a sound, at least four piezoelectric ceramic monomers are positioned at the edge of the electronic equipment, and at least one piezoelectric ceramic monomer is positioned in the display area of the display screen; and
The processor is respectively electrically connected with the display screen and the piezoelectric ceramic single bodies, and the processor is used for determining the sounding state of each piezoelectric ceramic single body according to the position of the preset object image on the display screen and the distance between each piezoelectric ceramic single body when the preset object image is displayed on the display screen.
the embodiment of the application provides a sound production control method of electronic equipment, wherein the electronic equipment comprises a display screen and at least five piezoelectric ceramic monomers, the display screen is used for displaying pictures, each piezoelectric ceramic monomer is used for producing sound, at least four piezoelectric ceramic monomers are located at the edge of the electronic equipment, and at least one piezoelectric ceramic monomer is located in a display area of the display screen;
The method comprises the following steps:
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;
And determining the sound production 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.
The embodiment of the application can confirm the sound production state of each piezoelectric ceramic monomer according to the distance between the preset object images displayed by the piezoelectric ceramic monomers and the display screen by setting at least five piezoelectric ceramic monomers, so that the sound produced by the piezoelectric ceramic monomers changes along with the position of the preset object images, and the sound playing effect of the electronic equipment is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
fig. 2 is a schematic structural diagram of a piezoelectric ceramic single body in the electronic device shown in fig. 1.
Fig. 3 is a schematic structural diagram of the piezoelectric ceramic single body shown in fig. 2 in a first bending state.
Fig. 4 is a schematic structural view of the piezoelectric ceramic unit shown in fig. 2 in a second bending state.
Fig. 5 is a first cross-sectional view of the electronic device shown in fig. 1 along a P-P direction.
fig. 6 is a schematic cross-sectional view of the electronic device shown in fig. 1 along a P-P direction.
Fig. 7 is a third cross-sectional structure of the electronic device shown in fig. 1 along a P-P direction.
Fig. 8 is a first application scene diagram of a preset object image displayed on a display screen in an embodiment of the present application.
Fig. 9 is a second application scene diagram of a preset object image displayed on a display screen in the embodiment of the present application.
Fig. 10 is a flowchart illustrating a sound emission control method of an electronic device according to an embodiment of the present application.
Detailed Description
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 20 may be a smart phone, a tablet computer, a Personal Digital Assistant (PDA), or the like.
Among other things, the electronic device 20 may include at least five piezoelectric ceramic unimorphs, such as the piezoelectric ceramic unimorph 200, the piezoelectric ceramic unimorph 200 being made of a ceramic material. The piezoelectric ceramic single body 200 may convert mechanical energy and electrical energy into each other, and when the piezoelectric ceramic single body 200 converts electrical energy into mechanical energy, the piezoelectric ceramic single body 200 may output a sound signal, and at this time, the piezoelectric ceramic single body 200 may serve as an earpiece or a speaker of the electronic device 20; when the piezoelectric ceramic single body converts mechanical energy into electrical energy, the piezoelectric ceramic single body 200 may collect a sound signal, and at this time, the piezoelectric ceramic single body 200 may serve as a microphone of the electronic device 20.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a piezoelectric ceramic single body in the electronic device shown in fig. 1. The shape of the piezoelectric ceramic single body 200 may be a regular shape, for example, the piezoelectric ceramic single body 200 may have a rectangular structure, a rounded rectangular structure, a circular structure, or the like. The piezoelectric ceramic monolith 200 may have an irregular shape.
The single piezoelectric ceramic body 200 may include a first piezoelectric ceramic sheet 210, a diaphragm 220, and a second piezoelectric ceramic sheet 230, which are stacked. The first piezoceramic sheet 210 and the second piezoceramic sheet 230 are conductors and may be used to conduct current. Diaphragm 220 is a non-conductor and may not be used to conduct current.
The size of the diaphragm 220 is larger than the size of the first piezoceramic sheet 210 and the second piezoceramic sheet 230. The diaphragm 220 may include a first region and a second region, the second region being disposed at a periphery of the first region. For example, the second region may be disposed around the periphery of the first region. Wherein the first piezoceramic sheet 210 and the second piezoceramic sheet 230 are arranged in the first zone such that the second zone is exposed.
The first piezoelectric ceramic plate 210 and the second piezoelectric ceramic plate are respectively electrically connected to an ac power source such as the ac power source 400, so as to convert the electric energy output by the ac power source 400 into mechanical energy. The ac power source 400 is used to output an ac voltage, and the ac power source 400 may include a first electrode 410 and a second electrode 420 having different potential values.
The first piezoceramic wafer 210 has a first end face and a second end face opposite to the first end face, wherein the first end face is a face away from the diaphragm 220, and the second end face is a face connected to the first region. The first end face is electrically connected to the first electrode 410 of the ac power source 400, and the second end face is electrically connected to the second electrode 420 of the ac power source 400.
The second piezoceramic sheet 230 has a third end face and a fourth end face opposite to the third end face, wherein the third end face is connected to the first region, and the fourth end face is away from the diaphragm 220. The third end surface is electrically connected to the second electrode 420 of the ac power supply 400, and the fourth end surface is electrically connected to the first electrode 420 of the ac power supply 400.
As shown in fig. 3 and 4, fig. 3 is a schematic structural view of the piezoelectric ceramic single body shown in fig. 2 in a first bending state, and fig. 4 is a schematic structural view of the piezoelectric ceramic single body shown in fig. 2 in a second bending state.
The alternating voltage direction of the alternating current power supply 400 may change with time along with the direction, the piezoelectric ceramic single body 200 may perform a deformation motion along with the alternating voltage direction, and the deformation motion of the piezoelectric ceramic single body 200 may cause ambient air to flow, thereby emitting 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, at this time, under the action of the electric field, the first piezoelectric ceramic piece 210 and the second piezoelectric ceramic piece 230 polarize the respective polarization vectors of the original disorientation along the preferred orientation of the electric field direction, because the direction of the external electric field of the first piezoelectric ceramic piece 210 is opposite to the direction of the external electric field of the second piezoelectric ceramic piece 230, the polarization direction of the first piezoelectric ceramic piece 210 is opposite to the polarization direction of the second piezoelectric ceramic piece 230, the polarization direction of the first piezoelectric ceramic piece 210 is the same as the voltage direction of the ac power supply 400, and the first piezoelectric ceramic piece 210 is elongated, so that the first piezoelectric ceramic piece 210 is bent toward the diaphragm 220; the polarization direction of the second piezoceramic sheet 230 is opposite to the voltage direction of the ac power supply 400, and the second piezoceramic sheet 230 is shortened, so that the second piezoceramic sheet 210 bends in the direction away from the diaphragm 220, and the diaphragm 220 also deforms under the action of the first piezoceramic sheet 210 and the second piezoceramic sheet, so that the piezoceramic monomer 200 assumes the first bending state.
As shown in fig. 4, when the alternating voltage direction of the ac power source 400 is output from the second electrode 420 and returns to the first electrode 410, the polarization direction of the first piezoceramic sheet 210 is opposite to the voltage direction of the ac power source 400, the first piezoceramic sheet 210 is shortened, the first piezoceramic sheet 210 is bent in the direction away from the diaphragm 220, the second piezoceramic sheet 230 is extended, the second piezoceramic sheet 210 is bent in the direction toward the diaphragm 220, and the diaphragm 220 is also deformed under the action of the first piezoceramic sheet 210 and the second piezoceramic sheet, so that the piezoceramic unit 200 assumes the second bending state.
The electronic device 20 can control the piezoelectric ceramic single body 200 to perform a deformation motion by controlling the alternating voltage of the alternating current power source 400 to switch the piezoelectric ceramic single body 200 between the first bending state and the second bending state.
wherein, the deformation amplitude of the piezoelectric ceramic single body 200 can be related to the voltage amplitude of the alternating voltage. For example, the deformation amplitude of the piezoelectric ceramic unit 200 may be proportional to the voltage amplitude of the alternating voltage. When the electronic device 20 controls the voltage amplitude of the alternating voltage of the alternating power supply 400 to increase, the deformation amplitude of the piezoelectric ceramic single body 200 increases accordingly, and stronger air fluctuation can be driven to form larger volume, so that the loudness of the audio signal is increased. Of course, the deformation amplitude of the piezoelectric ceramic single body 200 may be inversely proportional to the voltage amplitude of the alternating voltage, and in this case, the electronic device 20 may increase the deformation amplitude of the piezoelectric ceramic single body 200 by decreasing the voltage amplitude of the alternating voltage.
In the embodiment of the application, the first piezoelectric ceramic piece 210 and the second piezoelectric ceramic piece 230 are arranged in the first area, so that the second area of the diaphragm 220 is exposed outside, the first area is deformed by the acting force applied by the first piezoelectric ceramic piece 210 and the second piezoelectric ceramic piece 230, and the second area keeps the original state without the action of external force, so that the deformation amplitude of the diaphragm 220 can be increased compared with the second area without exposure.
It should be noted that the piezoelectric ceramic unit 200 may also include only the first piezoelectric ceramic piece 210 and the diaphragm 220, and the first piezoelectric ceramic piece 210 may drive the diaphragm 210 to deform. Of course, the piezoelectric ceramic unit 200 may also include a plurality of first piezoelectric ceramic pieces 210 and/or a plurality of second piezoelectric ceramic pieces 230, and the number of the first piezoelectric ceramic pieces 210 and the number of the second piezoelectric ceramic pieces 220 may be set according to practical situations, which is not limited in this embodiment of the application.
referring to fig. 1, at least four piezoelectric ceramic single bodies 200 of the at least five piezoelectric ceramic single bodies 200 are located at an edge of the electronic device 20, and at least one piezoelectric ceramic single body 200 is located in a display area of the display screen. For example, the electronic device 20 may include five piezoelectric ceramic single units 200, and the five piezoelectric ceramic single units 200 may be disposed entirely on a display screen such as the display screen 600, entirely on a housing such as the housing 900, partially on the display screen 600, and partially on the housing 900.
Referring to fig. 5, fig. 5 is a first cross-sectional view of the electronic device shown in fig. 1 along a P-P direction. Display screen 600 can be regular shape, for example cuboid structure, fillet rectangle structure, and display screen 600 has four sides and four connecting portion, and two adjacent sides are connected through a connecting portion, and two sides are connected in order to form a corner to a connecting portion.
The display screen 600 may have a display surface and a non-display surface opposite to each other, and the five piezoelectric ceramic units 200 are disposed on the non-display surface of the display screen 600, and the fixing manner may be implemented by bonding. For example, glue may be coated on a first end surface of the first piezoceramic sheet 210, and the first end surface of the first piezoceramic sheet 210 is 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 piece 210 and the non-display surface, and the first gap 820 may provide a deformation space for the piezoelectric ceramic unit 200, so that the piezoelectric ceramic unit 200 may be bent toward the non-display surface or may be bent away from the non-display surface. In some embodiments, the glue may be coated on a second region of the diaphragm 220, the second region is adhered to the non-display surface of the display screen 600, and the first piezoelectric ceramic sheet 210 abuts against the non-display surface, so as to fix the piezoelectric ceramic unit 200, and enable the first piezoelectric ceramic sheet 210 to bend freely, and only fix two sides of the diaphragm 220, and also increase the bending amplitude of the diaphragm 220 when the diaphragm 220 is under the action of the piezoelectric ceramic sheet.
four of the piezoelectric ceramic single bodies 200 are disposed at the connecting portion of the display screen 600, and one of the piezoelectric ceramic single bodies 200 is disposed at one of the connecting portions. The other one may be disposed in the display area of the display screen 600, for example, in the center of the display area, or may be disposed in other positions of the display area. It should be noted that the display screen 600 may have an irregular shape.
Alternatively, no gap may be provided between the non-display surface of the display screen 600 and the piezoelectric ceramic single body 200 in the embodiment of the above application. For example, the piezoelectric ceramic single body 200 may be directly fixed to the non-display surface of the display screen 600, and the fixing manner may be implemented by using an adhesive. For example, glue may be coated on a first end surface of the first piezoceramic sheet 210, and the first end surface of the first piezoceramic sheet 210 is attached to the non-display surface of the display screen 600. When the single piezoelectric ceramic 200 is bent toward the non-display surface of the display screen 600, the display screen 600 may be driven to bend toward the outside, and at this time, the bending state of the display screen 600 is the same as the first bending state of the single piezoelectric ceramic 200; when the single piezoelectric ceramic body is bent toward the non-display surface away from the display screen 600, the display screen 600 may be driven to be bent toward the outside, and at this time, the bent state of the display screen 600 is the same as the second bent state of the single piezoelectric ceramic body 200. Under the alternating change of the output voltage direction of the ac power supply 400, the piezoelectric ceramic single body 200 can drive the display screen 600 to switch between different bending states, so that the air around the display screen 600 flows and makes a sound. The piezoelectric ceramic single bodies 200 at 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 a plurality of positions emit sound together, a stereo effect can be created.
In addition, it should be noted that, because the size of the display screen 600 is large and the rigidity of the display screen 600 is large, the display screen 600 has a good effect of generating a sound signal when vibrating at a high frequency, and has a poor effect of generating a sound signal when vibrating at a low frequency. That is, when the display screen 600 is used for generating high pitch, the sound effect is good; and when used for producing bass, the sound effect is poor. Based on the control, the display screen 600 can be controlled to emit the sound greater than or equal to 300Hz and less than 20kHz, and other sound generating devices such as a loudspeaker in the electronic device 20 can be controlled to generate the sound signal less than 300Hz, and the sound generating effect of the electronic device can be improved by the cooperation of the two.
In some embodiments, the display screen 600 may be made of a flexible material, which may increase the bending amplitude of the display screen 600 under the same driving force, thereby enhancing the sound production effect of the display screen 600.
With continued reference to fig. 1, the electronic device 20 may further include a housing, such as housing 900, with the display screen 400 mounted on the housing 900. The housing 900 may be formed from plastic, glass, ceramic, fiber composite, metal (e.g., stainless steel, aluminum, etc.), other suitable materials, or a combination of any two or more of these materials. The housing 900 has an inner surface and an outer surface, wherein the inner surface may be a surface on which the components of the electronic device 20 are mounted, and the outer surface may be located outside the electronic device 20. For example, the outer surface of the housing 900 is visible to a user and the inner surface of the substrate 900 is not visible to the user.
alternatively, as shown in fig. 6, fig. 6 is a schematic cross-sectional view of the electronic device shown in fig. 1 along a P-P direction. The piezoelectric ceramic single body 200 of the above-mentioned application embodiment may also be directly fixed to the inner surface of the housing 900, and may be implemented by using an adhesive. For example, the fourth end surface of the second piezoceramic 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 piezoceramic sheet 220, and the second gap 840 may provide a deformation space for the single piezoceramic cell 200, so that the single piezoceramic cell 200 may be bent towards the inner surface or away from the inner surface. In some embodiments, glue may be coated on the second region of the diaphragm 220, the second region is adhered to the inner surface of the casing 900, and the second piezoceramic sheet 230 abuts against the inner surface, so as to fix the single piezoceramic sheet 200, and allow the second piezoceramic sheet 230 to bend freely, and only fix the two sides of the diaphragm 220, and also increase the bending amplitude of the diaphragm 220 when the diaphragm 220 is acted by the piezoceramic sheet.
The housing 200 may include a substrate that may serve as a carrier for the electronic device 20. For example, the substrate may carry a circuit board, a camera, a piezoelectric ceramic monolith, etc. of the electronic device 20. 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 each other. Wherein the inner surface of the substrate may be the side on which the components of the electronic device 20 are mounted, and wherein 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 not visible to the user.
The housing 200 may include a bezel, which may be disposed on an inner surface of the substrate, and which is disposed around a periphery of the substrate. The frame surrounds the periphery of the substrate, and a receiving space is formed on the substrate to receive the components of the electronic device 20. In some embodiments, the bezel and the substrate may be integrally formed, such as by injection molding.
At least one of the at least five piezoelectric ceramic single units 200 may be disposed on the substrate, and the piezoelectric ceramic single unit 200 is located in a display area of the display screen 600, for example, may be located in a center of the display area. At least four piezoelectric ceramic units 200 may be disposed at an edge of the housing 900, for example, may be disposed on a 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. At least five piezoelectric ceramic single bodies 200 in the embodiments of the above application may also be disposed on the display screen 600 and the housing 900 at the same time. For example, at least five piezoelectric ceramic units 200 may be divided into two parts, one of which is disposed on the non-display surface of the display screen 600; another part is disposed on the inner surface of the casing 900, and another part of the piezoelectric ceramic single bodies may be located at the interval position of one part of the piezoelectric ceramic single bodies 200, and the projection of another part of the piezoelectric ceramic single bodies 200 on the display screen is located in the display area. Therefore, the piezoelectric ceramic single body 200 arranged on the non-display surface of the display screen 600 can sound towards the display surface of the display screen 600, and the piezoelectric ceramic single body 200 arranged on the inner surface of the shell 900 can sound towards the outer surface of the shell 900, so that the sound production effect of the electronic device 20 is further improved.
The electronic device 20 may further integrate a processor, a memory, etc., wherein the processor may be used to process various operations of the electronic device 20, and the processor is electrically connected to the display screen 600 and the piezoelectric ceramic unit 200, respectively.
The processor 401 is a control center of the electronic device 20, connects various parts of the entire electronic device using various interfaces and lines, performs various functions of the electronic device 20 by running or loading a computer program stored in the memory 402 and calling data stored in the memory 402, and processes the data, thereby performing overall monitoring of the electronic device 20. The processor may be configured to determine a sound emitting state of each piezoelectric ceramic unit according to a distance between a preset object image and each piezoelectric ceramic unit when the preset object image is displayed in the display area 620 of the display screen 600.
It can be understood that, during the process of displaying the image on the display screen, the electronic device 20 may continuously obtain the preset object image displayed on the display screen, and determine the sound production state of each piezoelectric ceramic monomer to produce the sound adapted to the position of the preset object image, so as to create a stereo effect in which the sound moves along with the movement of the picture, so that the user may be really immersed in the video and audio, and the user may have an immersive listening experience. In some embodiments, the electronic device 20 may display the images on the display screen 600 in real time according to a preset sequence, which may be a sequence set by a producer of the multi-frame images, or a sequence set by the user himself.
The sound emission state may include a sound emission state and a sound non-emission state. When the piezoelectric ceramic single body 200 is in a sound emitting state, the processor may control the ac power supply 400 to output an ac voltage, so that the piezoelectric ceramic single body 200 is switched between the first bending state and the second bending state, thereby causing the piezoelectric ceramic single body 200 to emit a sound. When the piezoelectric ceramic single body 200 is in the non-sound state, the processor may control the ac power supply 400 not to output the ac voltage, so that the piezoelectric ceramic single body 200 is in the static state, and the piezoelectric ceramic single body 200 does not make a sound. Of course, the processor may control the sound emitting state of the piezoelectric ceramic single body 200 in other ways, so as to emit sound or not.
The embodiment of the application can determine the sound production state of each piezoelectric ceramic monomer according to the distance between the preset object images displayed by the piezoelectric ceramic monomers and the display screen by setting at least five piezoelectric ceramic monomers, so that the sound produced by the piezoelectric ceramic monomers changes along with the position of the preset object images, and the sound playing effect of the electronic equipment is improved.
For example, as shown in fig. 8, fig. 8 is a first application scene diagram of a preset object image displayed on a display screen in the embodiment of the present application. At time t1, when the preset object image is displayed at the first position on the display screen 600, the processor may determine the sound emission state of each piezoelectric ceramic unit 200 by measuring the distance between each piezoelectric ceramic unit 200 and the preset object image. For example, the electronic device 20 may be provided with a piezoelectric ceramic monomer a1, a piezoelectric ceramic monomer a2, a piezoelectric ceramic monomer A3, a piezoelectric ceramic monomer a4, and a piezoelectric ceramic monomer a5, and the processor may measure a distance between each piezoelectric ceramic monomer and the preset object image, such as a distance between the piezoelectric ceramic monomer a1 and the preset object image being d1, a distance between the piezoelectric ceramic monomer a2 and the preset object image being d2, a distance between the piezoelectric ceramic monomer A3 and the preset object image being d3, a distance between the piezoelectric ceramic monomer a4 and the preset object image being d4, and a distance between the piezoelectric ceramic monomer a5 and the preset object image being d 5. The processor may determine whether the 5 distance values are smaller than a first preset value according to the first preset value, where the first preset value may be a preset value, may be set before the electronic device 20 leaves a factory, or may be set by a user in a later period.
the distance between each piezoelectric ceramic single body 200 and the preset object image may be an actual distance between the piezoelectric ceramic single body 200 and a display position of the preset object image, or a distance between a projection of the piezoelectric ceramic single body 200 on the display screen and the display position of the preset object image. When the distance between the piezoelectric ceramic single body 200 and the preset object image is calculated, the distance between the center position of the piezoelectric ceramic single body 200 and the center position of the preset object image may be calculated, and may be the distance between the edge position of the piezoelectric ceramic single body and the edge position of the preset object image, as long as each piezoelectric ceramic single body adopts the same metering mode, which is not limited in the embodiment of the present application.
When the distance value judged by the processor is smaller than the first preset value, the piezoelectric ceramic monomer is determined to be in a sound emitting state, for example, when the processor judges that the distance from the piezoelectric ceramic monomer a1 to a preset object image is d1 and the distance from the piezoelectric ceramic monomer a2 to the preset object image is d2, the piezoelectric ceramic monomer a1 and the piezoelectric ceramic monomer a2 are determined to be in a sound emitting state, and at the moment, the processor can control the piezoelectric ceramic monomer a1 and the piezoelectric ceramic monomer a2 to emit sound together.
When the distance value determined by the processor is greater than or equal to the first preset value, it is determined that the piezoelectric ceramic monomer is in a non-sound-emitting state, for example, when the processor determines that the distance from the piezoelectric ceramic 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, it is determined that the piezoelectric ceramic monomer A3, the piezoelectric ceramic monomer a4, and the piezoelectric ceramic monomer a5 are in a non-sound-emitting state, and at this time, the processor may control the piezoelectric ceramic monomer A3, the piezoelectric ceramic monomer a4, and the piezoelectric ceramic monomer a5 to emit no sound.
In some embodiments, the processor may be further configured to determine a sound effect mode of the sound generated by the piezoelectric ceramic single units 200 according to a distance between a preset object image and each of the piezoelectric ceramic single units when the piezoelectric ceramic single units are in a sound generating state.
Referring to fig. 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 d2 and is smaller than the first preset value, it is determined that the piezoelectric ceramic monomer a1 and the piezoelectric ceramic monomer a2 are in a sound-emitting state, and further determines the relationship between d1 and d2 and the second preset value, for example, d1 is smaller than the second preset value and d2 is larger than the second preset value in this embodiment of the application, the processor may control the volume of the corresponding piezoelectric ceramic monomer a1 to be larger than the third preset value, and control the volume of the corresponding piezoelectric ceramic monomer a2 to be larger than the fourth preset value and smaller than the third preset value. The third preset value is larger than the fourth preset value, and at this time, the volume of the piezoelectric ceramic monomer A1 is larger than the volume of the piezoelectric ceramic monomer A2, so that sounds with different volumes, which are emitted by the piezoelectric ceramic monomer A1 and the piezoelectric ceramic monomer A2, can create a stereo effect.
The processor in the embodiment of the above application can be further configured to control the tone of the piezoelectric ceramic monomer to be greater than a fifth preset value when the distance is smaller than a second preset value; and when the distance is greater than or equal to a second preset value, controlling the volume of the piezoelectric ceramic monomer to be greater than a sixth preset value and smaller than a seventh preset value. For example, the processor may control the tone of the corresponding piezoelectric ceramic cell a1 to be greater than a fifth preset value, and control the tone of the corresponding piezoelectric ceramic cell a2 to be greater than a sixth preset value and less than the fifth preset value. The fifth preset value is greater than the sixth preset value, at this time, the tone of the piezoelectric ceramic monomer a1 is higher than the tone of the piezoelectric ceramic monomer a2, so that the piezoelectric ceramic monomer a1 and the piezoelectric ceramic monomer a2 emit different tones of sound, and the sound emitted by the piezoelectric ceramic monomer a2 can be used as an auxiliary sound of the piezoelectric ceramic monomer a1, so that the sound playing effect of the electronic device can be improved, and a user can be really immersed in the sound played by the electronic device.
It should be noted that, when the processor determines that there are more than two piezoelectric ceramic monomers in the sound emitting state and that there are a plurality of piezoelectric ceramic monomers smaller than the second preset value, the processor may control the volume and/or tone of the piezoelectric ceramic monomer corresponding to the distance value from the piezoelectric ceramic monomer to the piezoelectric ceramic monomer whose distance from the preset object image is smaller than the second preset value from large to small according to the distance value.
As shown in fig. 9, fig. 9 is a second application scene diagram of a preset object image displayed on a display screen in the embodiment of the present application. At time t2, a preset object image is displayed at a second position of the display screen 600, at this time, the distance from the preset object image to the piezoelectric ceramic monomer a1 is d3, the distance to the piezoelectric ceramic monomer a2 is d4, the distance to the piezoelectric ceramic monomer A3 is d5, the distance to the piezoelectric ceramic monomer a4 is d6, the distance to the piezoelectric ceramic monomer a5 is d7, wherein the values of d3, d4 and d5 are smaller than a first preset value, the values of d3 and d4 are smaller than a second preset value, and d3 is smaller than d 4. After the processor obtains the distance value between each piezoelectric ceramic monomer and the preset object image, the processor can control the piezoelectric ceramic monomer A1 and the piezoelectric ceramic monomer A2 to emit sound with the volume between the third preset value and the fourth preset value, and the volume of the sound emitted by the piezoelectric ceramic monomer A1 is larger than the volume of the sound emitted by the piezoelectric ceramic monomer A2. For example, the processor may control piezo A3 to emit a first volume of sound, piezo a1 to emit a second volume of sound, and piezo a2 to emit a third volume of sound, wherein the first volume 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, the volume of the sound emitted by the piezoelectric ceramic monomer a1 is the next largest, and the volume of the sound emitted by the piezoelectric ceramic monomer A3 is the smallest, thus presenting a surround sound with the volume gradually decreasing.
Meanwhile, the processor can control the piezoelectric ceramic monomer A1 and the piezoelectric ceramic monomer A2 to emit sound with the tone between the fifth preset value and the sixth preset value, and the tone of the sound emitted by the piezoelectric ceramic monomer A1 is higher than that of the sound emitted by the piezoelectric ceramic monomer A2. For example, the processor may control piezo A3 to emit a first tone, piezo A1 to emit a second tone, and piezo A2 to emit a third tone, wherein the first tone is greater than the second tone and the third tone, and the second tone is greater than the third tone. At this time, the tone 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 the next highest, and the tone of the sound emitted by the piezoelectric ceramic monomer A3 is the lowest, so that a stereo effect with the matching of high tone, middle tone and low tone is presented.
In addition, not shown in the drawings, the electronic device may further include a control circuit, the control circuit may include an audio control sub-circuit, the audio control sub-circuit may be configured to control whether the piezoelectric ceramic unit 200 vibrates, the vibration amplitude and the vibration frequency, the audio control sub-circuit may be electrically connected to the processor and the piezoelectric ceramic unit 200, the audio control sub-circuit may control whether the piezoelectric ceramic unit 200 generates sound, the volume of the generated sound, the tone size and the like by controlling the vibration state of the piezoelectric ceramic unit 200, and the audio control sub-circuit may include a filter or a power amplifier.
referring to fig. 10, fig. 10 is a schematic flow chart of a sound-production control method of an electronic device according to an embodiment of the present application, where the sound-production control method of the electronic device may be applied to the electronic device 20 according to the embodiment of the present application, and the sound-production control method of the electronic device includes:
And 101, acquiring a preset object image displayed on the display screen.
when the electronic equipment is used for watching videos, the display area of the display screen can sequentially display the target scene images according to the video playing sequence, and the electronic equipment can acquire a preset object image containing a preset object from one frame of the target scene images. For example, the electronic device may acquire a frame of preset object image by: the electronic device may acquire images displayed on the display area and recognize preset object images from the images, respectively.
The preset object image may be a preset image of an object, for example, if the preset object is a sports car, the preset object image is a sports car image, if the preset object is a female hero, the preset object image is an image of the female hero, and if the preset object is a robot, the preset object image is an image of the robot. The electronic device may acquire 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 may be one object or a plurality of objects, for example, the image of the sports car and the image of the hero of the woman may be simultaneously set as the preset object image, or the image of the hero of the man and the image of the hero of the woman may be simultaneously set as the preset object image, which may be set according to the desired scene effect.
The preset object image can be recognized from the display image according to the m key points in the electronic device, for example, the electronic device may preset a feature recognition model, and the feature recognition model may perform feature recognition on the acquired image. For example, the electronic device may preset a convolutional neural network model, identify key points of a preset object image in the image by using the convolutional neural network model to obtain a plurality of feature values of the preset object image, and identify the preset object image from the image by using the plurality of feature values.
In this scheme, the target scene image refers to an image to be played by a user through the electronic device, and the target scene image may be presented in a display area of the display screen.
In addition, the content of the target scene image is not specifically limited in the embodiment of the present application, for example, the target scene image may be that a sports car runs on an expressway, that a sports car runs on a rural area, that a sports car runs in a car race track, or the like. The method of the embodiment of the application can be used in any scene needing to use the display screen for image display. For example, video playback is performed using video playback software, live broadcast is performed using live broadcast software, and the like.
102, calculating 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, determining the sound production 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 time, the electronic device may identify a display position of a preset object image to identify a first position, calculate a distance between the first position and each single piezoelectric ceramic, and determine a sound emitting state of each piezoelectric ceramic according to the distance between the first position and each single piezoelectric ceramic, for example, determine whether the single piezoelectric ceramic is in a sound emitting state or a non-sound emitting state, how much volume is emitted in the sound emitting state, how many tones are emitted, and the like, which may be specifically referred to the scene structure diagrams of fig. 6 and 7 and the description thereof, and details are not repeated herein.
In some embodiments, the electronic device may determine whether a distance between the preset object image and the piezoelectric ceramic single body is smaller than a first preset value; when the distance is smaller than a first preset value, determining that the piezoelectric ceramic monomer is in a sounding state; and when the distance is greater than or equal to the first preset value, determining that the piezoelectric ceramic monomer is in a non-sounding state.
An embodiment of the present application further provides a storage medium, where the storage medium stores a computer program, and when the computer program runs on a computer, the computer is caused to execute the sound emission control method of the electronic device in any one of the above embodiments. Such as: acquiring a preset object image displayed on the display screen; calculating 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; and determining the sound production state of each piezoelectric ceramic monomer according to the distance between the preset object image and each piezoelectric ceramic monomer.
In the embodiment of the present application, the storage medium may be a magnetic disk, an optical disk, a Read Only Memory (ROM), a Random Access Memory (RAM), or the like.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
it should be noted that, for the sound emission control method of the electronic device in the embodiment of the present application, it can be understood by a person skilled in the art that all or part of the process of implementing the sound emission control method of the electronic device in the embodiment of the present application can be implemented by controlling related hardware through a computer program, where the computer program can be stored in a computer readable storage medium, such as a memory of the electronic device, and executed by at least one processor in the electronic device, and during the execution process, the process of the embodiment of the sound emission control method of the electronic device can be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory, a random access memory, etc.
The electronic device and the sound production control method thereof provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (12)
1. An electronic device, comprising:
The display screen is used for displaying pictures;
at least five piezoelectric ceramic monomers, wherein each piezoelectric ceramic monomer is used for making a sound, at least four piezoelectric ceramic monomers are positioned at the edge of the electronic equipment, and at least one piezoelectric ceramic monomer is positioned in the display area of the display screen; and
The processor is respectively electrically connected with the display screen and the piezoelectric ceramic single bodies, and the processor is used for determining the sounding state of each piezoelectric ceramic single body according to the position of the preset object image on the display screen and the distance between each piezoelectric ceramic single body when the preset object image is displayed on the display screen.
2. the electronic device of claim 1, wherein the sound emitting state comprises a sound emitting state and a sound non-emitting state; the processor is used for determining that the piezoelectric ceramic single body is in a sound emitting state when the distance is smaller than a first preset value, and determining that the piezoelectric ceramic single body is in a non-sound emitting state when the distance is larger than or equal to the first preset value.
3. The electronic device according to claim 2, wherein the processor is further configured to determine an audio mode of the sound generated by the piezoelectric ceramic unit according to the distance when the piezoelectric ceramic unit is in a sound generating state.
4. The electronic device of 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 single body to be greater than a third preset value when the distance is smaller than a second preset value; and when the distance is greater than or equal to a second preset value and smaller 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 smaller than a third preset value.
5. The electronic device of claim 4, wherein the sound effect mode comprises a tone, and the processor is configured to control the tone of the sound emitted by the piezoelectric ceramic unit to be higher than a fifth preset value when the distance is smaller than a second preset value; and when the distance is greater than or equal to a second preset value and smaller than the first preset value, controlling the tone of the sound emitted by the piezoelectric ceramic monomer to be higher than a sixth preset value and lower than a fifth preset value.
6. The electronic device according to any one of claims 1 to 5, wherein the piezoelectric ceramic single body comprises a first piezoelectric ceramic sheet, a diaphragm and a second piezoelectric ceramic sheet which are stacked, the diaphragm comprises a first region and a second region, the second region is arranged at the periphery of the first region, and the first piezoelectric ceramic sheet and the second piezoelectric ceramic sheet are arranged in the first region so that the second region is exposed.
7. The electronic device according to claim 6, further comprising an alternating current power source including a first electrode and a second electrode which are different in potential value;
The first piezoelectric ceramic piece comprises a first end face and a second end face which are opposite, the first end face is electrically connected with the first electrode, the second end face is connected with the first region of the diaphragm, and the second end face is electrically connected with the second electrode;
the second piezoelectric ceramic piece comprises a third end face and a fourth end face which are opposite, the third end face is connected with the first area of the diaphragm, the third end face is electrically connected with the second electrode, and the fourth end face is electrically connected with the first electrode.
8. The electronic device according to claim 7, wherein the at least five piezoelectric ceramic units are disposed on a non-display surface of the display screen, at least four piezoelectric ceramic units are disposed at an edge of the display screen, at least one piezoelectric ceramic unit is disposed in a display area of the display screen, and a first gap is disposed between the at least five piezoelectric ceramic units and the non-display surface of the display screen, and the first gap is configured to provide a deformation space for the piezoelectric ceramic units.
9. The electronic device according to claim 7, wherein the at least five piezoelectric ceramic units are disposed on a non-display surface of the display screen, at least four piezoelectric ceramic units are disposed at an edge of the display screen, at least one piezoelectric ceramic unit is disposed in a display area of the display screen, and the at least five piezoelectric ceramic units are configured to drive the display screen to vibrate so as to make the display screen generate sound.
10. The electronic device according to claim 7, further comprising a housing, wherein the at least five single piezoelectric ceramic units are disposed on an inner surface of the housing, the at least four single piezoelectric ceramic units are disposed at an edge of the housing, at least one single piezoelectric ceramic unit is disposed on the housing and located in a display area of the display screen, and a second gap is disposed between the single piezoelectric ceramic unit and the inner surface of the housing, and the second gap is configured to provide a deformation space for the single piezoelectric ceramic unit.
11. The electronic equipment is characterized by comprising a display screen for displaying pictures and at least five piezoelectric ceramic monomers, wherein each piezoelectric ceramic monomer is used for making sound, at least four piezoelectric ceramic monomers are positioned at the edge of the electronic equipment, and at least one piezoelectric ceramic monomer is positioned in a display area of the display screen;
The method comprises the following steps:
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;
and determining the sound production 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.
12. the method for controlling sound emission of an electronic device according to claim 11, wherein the determining the sound emission state of each piezoelectric ceramic unit according to the distance between the position of the preset object image on the display screen and each piezoelectric ceramic unit comprises:
Judging whether the distance between the position of the preset object image on the display screen and the piezoelectric ceramic monomer is smaller than a first preset value or not;
When the distance is smaller than the first preset value, determining that the piezoelectric ceramic single body is in a sound emitting state;
And when the distance is greater than or equal to the first preset value, determining that the piezoelectric ceramic single body does not make a sound.
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