CN111262982A - Electronic device - Google Patents
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- CN111262982A CN111262982A CN202010040471.0A CN202010040471A CN111262982A CN 111262982 A CN111262982 A CN 111262982A CN 202010040471 A CN202010040471 A CN 202010040471A CN 111262982 A CN111262982 A CN 111262982A
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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
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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
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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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
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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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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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
An embodiment of the present application provides an electronic device, and the electronic device includes: the surface of the display screen is provided with first piezoelectric ceramics; the rear cover is provided with second piezoelectric ceramics; the central processing unit is electrically connected with the display screen; the input end of a first audio processor is electrically connected with the central processing unit, the output end of the first audio processor is electrically connected with the first piezoelectric ceramic, and the first audio processor is used for driving the first piezoelectric ceramic to vibrate so as to send out sound signals; the input end of a second audio processor is electrically connected with the central processing unit, the output end of the second audio processor is electrically connected with the second piezoelectric ceramics, and the second audio processor is used for driving the second piezoelectric ceramics to vibrate so as to send out sound signals; the vibration direction of the first piezoelectric ceramic is the same as the vibration direction of the second piezoelectric ceramic. The embodiment of the application can improve the strength of the sound signal emitted by the electronic equipment.
Description
Technical Field
The present application relates to the field of electronic technologies, and in particular, to an electronic device.
Background
With the development of communication technology, electronic devices such as smart phones are becoming more and more popular. During the use process of the electronic equipment, the electronic equipment can control acoustic devices such as a loudspeaker, a receiver and the like to transmit sound signals through a mainboard of the electronic equipment.
Disclosure of Invention
The embodiment of the application provides electronic equipment, which can improve the strength of a sound signal emitted by the electronic equipment.
An embodiment of the present application provides an electronic device, including:
the display screen is characterized in that a first piezoelectric ceramic is arranged on the surface of the display screen;
the rear cover is provided with second piezoelectric ceramics;
the central processing unit is electrically connected with the display screen;
the input end of the first audio processor is electrically connected with the central processing unit, the output end of the first audio processor is electrically connected with the first piezoelectric ceramic, and the first audio processor is used for driving the first piezoelectric ceramic to vibrate so as to send out sound signals; and
the input end of the second audio processor is electrically connected with the central processing unit, the output end of the second audio processor is electrically connected with the second piezoelectric ceramic, and the second audio processor is used for driving the second piezoelectric ceramic to vibrate so as to send out sound signals;
the vibration direction of the first piezoelectric ceramics is the same as the vibration direction of the second piezoelectric ceramics.
An embodiment of the present application further provides an electronic device, including:
the display screen is characterized in that the surface of the display screen is provided with at least two first piezoelectric ceramics;
the rear cover is provided with at least two second piezoelectric ceramics;
the central processing unit is electrically connected with the display screen;
the input ends of all the first audio processors are electrically connected with the central processing unit, the output end of one first audio processor is electrically connected with one first piezoelectric ceramic, and one first audio processor is used for driving one first piezoelectric ceramic to vibrate so as to send out sound signals; and
the input ends of all the second audio processors are electrically connected with the central processing unit, the output end of one second audio processor is electrically connected with one second piezoelectric ceramic, and one second audio processor is used for driving one second piezoelectric ceramic to vibrate so as to send out sound signals;
the vibration direction of all the first piezoelectric ceramics is the same as the vibration direction of all the second piezoelectric ceramics.
An embodiment of the present application further provides an electronic device, including:
the display screen is characterized in that two first piezoelectric ceramics are arranged on the surface of the display screen;
the rear cover is provided with two second piezoelectric ceramics;
the central processing unit is electrically connected with the display screen;
the input ends of all the first audio processors are electrically connected with the central processing unit, the output end of one first audio processor is electrically connected with one first piezoelectric ceramic, one first audio processor is used for driving one first piezoelectric ceramic to vibrate so as to send out middle-high frequency sound signals, and the other audio processor is used for driving the other first piezoelectric ceramic to vibrate so as to send out low-frequency sound signals; and
the input ends of all the second audio processors are electrically connected with the central processing unit, the output end of one second audio processor is electrically connected with one second piezoelectric ceramic, one second audio processor is used for driving one second piezoelectric ceramic to vibrate so as to send out middle-high frequency sound signals, and the other second audio processor unit is used for driving the other second piezoelectric ceramic to vibrate so as to send out low-frequency sound signals;
the vibration direction of the first piezoelectric ceramic for emitting the low-frequency sound signal is the same as that of the second piezoelectric ceramic for emitting the low-frequency sound signal;
the vibration direction of the first piezoelectric ceramic for emitting the medium-high frequency sound signal is opposite to the vibration direction of the second piezoelectric ceramic for emitting the medium-high frequency sound signal.
According to the electronic device provided by the embodiment of the application, the first audio processor can drive the first piezoelectric ceramic to generate vibration to emit a sound signal, the second audio processing unit can drive the second piezoelectric ceramic to generate vibration to emit a sound signal, and in the vibration process of actually driving the first piezoelectric ceramic and the second piezoelectric ceramic, the vibration directions of the first piezoelectric ceramic and the second piezoelectric ceramic are the same to form superposition of the sound signal, namely the audio signal is superposed to generate an enhancement effect, so that the intensity of the sound signal emitted by the electronic device can be 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 first structural block diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 3 is a second structural block diagram of an electronic device according to an embodiment of the present application.
Fig. 4 is a third structural block diagram of an electronic device according to an embodiment of the present application.
Fig. 5 is a fourth structural block diagram of an electronic device according to an embodiment of the present application.
Fig. 6 is a fifth structural block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a first structural block diagram of an electronic device according to an embodiment of the present disclosure. An electronic device, such as electronic device 10 of fig. 1, may be a computing device, such as a laptop computer, a computer monitor containing an embedded computer, a tablet computer, a cellular telephone, a media player, or other handheld or portable electronic device, a smaller device (such as a wristwatch device, a hanging device, an earphone or headphone device, a device embedded in eyeglasses, or other device worn on the head of a user, or other wearable or miniature device), a television, a computer display that does not contain an embedded computer, a gaming device, a navigation device, an embedded system (such as a system in which an electronic device with a display is installed in a kiosk or an automobile), a device that implements the functionality of two or more of these devices, or other electronic devices.
As shown in fig. 1, the electronic device 200 may include a display screen such as display screen 270, and the display screen 270 may display a picture. The display 270 may have a regular shape, such as a rectangular parallelepiped structure or a rounded rectangular structure, or the display 270 may have an irregular shape. Display screen 500 may include an array of display pixels formed from Liquid Crystal Display (LCD) components, an array of electrophoretic display pixels, an array of plasma display pixels, an array of organic light emitting diode display pixels, an array of electrowetting display pixels, or display pixels based on other display technologies. A display screen cover layer such as a transparent glass layer, light-transmissive plastic, sapphire, or other transparent dielectric layer may be used to protect the display screen 270.
The display screen 270 may include an array of touch sensors (i.e., include a touch display). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.
The display screen 270 has two opposite surfaces, and the two opposite surfaces of the display screen 270 may be defined as an outer surface of the display screen 270 and an inner surface of the display screen 270, where the outer surface of the display screen 270 may display pictures and the inner surface of the display screen 270 does not display pictures. It is understood that two opposite sides of the display screen 270 may also be positioned as a display side of the display screen 270 and a non-display side of the display screen 270, the display side of the display screen 270 may display pictures, and the non-display side of the display screen 270 may not display pictures. The outer surface of the display screen 270 may be provided with an integrated circuit for performing functions such as signal transmission and driving image display.
The inner surface of the display 270 is located inside the electronic device 200, i.e. the side that is not visible to the user from outside the electronic device 200. The outer surface of the display 270 is located on the outside of the electronic device 200, i.e., the side that is viewable by a user from outside the electronic device 200.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. In the exemplary configuration of fig. 2, the electronic device 200 is a portable device, such as a cellular telephone, media player, tablet, or other portable computing device. Other configurations may be used for the electronic device 200, if desired.
The example of fig. 2 is merely exemplary.
One or more first piezoelectric ceramics 240 may be disposed on an inner surface of display screen 270. It is to be understood that "a plurality" may be understood as at least two, such as two, three, etc. One or more first piezoelectric ceramics 240 may be adhered to the inner surface of the display screen 270 by a glue layer. First piezoelectric ceramic 240 may vibrate to emit an acoustic signal, i.e., first piezoelectric ceramic 240 may be understood as a speaker of electronic device 200, such as an earpiece.
As shown in fig. 2, the electronic device 200 may include a rear cover such as rear cover 290. The rear cover 290 may be formed of 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 rear cover 290 may be formed using a unitary configuration in which some or all of the rear cover 290 is machined or molded as a single structure, or may be formed using multiple structures.
It is understood that the electronic device 200 may further include a middle frame (not shown in fig. 2), which may serve as a support structure for the electronic device 200 to support components of the electronic device 200, such as the display 270, the battery 280, the circuit board, and the like. The middle frame may be formed from plastic, 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 middle frame may be formed using a unitary configuration in which some or all of the middle frame is machined or molded as a single structure, or may be formed using multiple structures (e.g., an inner frame structure, one or more structures that form an outer housing surface, etc.).
In practical applications, only one first piezoelectric ceramic 240 is disposed on the inner surface of the display 270 of the electronic device 200 to emit an acoustic signal, which is often insufficient in intensity. However, if the plurality of first piezoelectric ceramics 240 are disposed on the inner surface of the display screen 270, it is often not easy to implement, and it is found through actual production and processing that the display screen 270 is assembled on the middle frame of the electronic device 200, and the display screen 270 is matched with the middle frame of the electronic device 200, so that a space between the inner surface of the display screen 270 and the middle frame of the electronic device 200 is limited.
In addition, if a plurality of first piezoelectric ceramics 240 are disposed on the inner surface of the display 270 to generate the sound signal, the intensity of the sound signal at the side of the electronic device 200 disposed on the display 270 can be increased accordingly. However, the sound intensity of the side of the electronic device 200 where the display 270 is not provided is still weak.
With continued reference to fig. 1 and 2, embodiments of the present application may also include one or more second piezoceramic 250 disposed on the back cover 290. One or more second piezoelectric ceramics 250 may be adhered to the inner surface of the back cover 290 by a glue layer. The second piezoelectric ceramic 250 may generate vibrations to emit an acoustic signal, i.e. the second piezoelectric ceramic 250 may also be understood as a loudspeaker, such as a loudspeaker, of the electronic device 200.
It should be noted that one or more second piezoelectric ceramics 250 may also be disposed at other positions of the rear cover 290, such as one or more second piezoelectric ceramics 250 disposed in the rear cover 290, that one or more second piezoelectric ceramics 250 are embedded in the rear cover 290, that one or more mounting holes are opened in the rear cover 290, and that one second piezoelectric ceramics 250 is assembled in one mounting hole. The mounting hole can be a through hole or a blind hole. Wherein a blind hole can be understood as a slot structure. For another example: one or more second piezoelectric ceramics 250 are disposed on the outer surface of the rear cover 290. It should be noted that if one or more second piezoelectric ceramics 250 are disposed on the outer surface of rear cover 290, a protective structure such as a protective cover may be disposed to protect one or more second piezoelectric ceramics 250.
In some embodiments, electronic device 200 may include a first piezoelectric ceramic 240 and a second piezoelectric ceramic 250, as shown in FIG. 2. A first piezoelectric ceramic 240 may be proximate one end of electronic device 200 and a second piezoelectric ceramic 250 may be proximate the other end of electronic device 200. One first piezoelectric ceramic 240 and one second piezoelectric ceramic 250 may be disposed on either side of cell 280, it being understood that cell 280 is located between one first piezoelectric ceramic 240 and one second piezoelectric ceramic 250, and one first piezoelectric ceramic 240 and one second piezoelectric ceramic 250 are both disposed spaced apart from cell 280.
Referring to fig. 1, the electronic device 200 may further include a central processing unit 210, a first audio processor 220, a second audio processor 230, and a memory 260. The processor 210 is electrically connected to the first audio processor 220, the second audio processor 230, the display 270, the battery 280 and the memory 260. Such as processor 210, is connected to first audio processor 220, second audio processor 230, display 270, battery 280, and memory 260 via signal lines. The signal line may be understood as a conductive line, such as a copper line.
The memory 260 may be used to store computer programs and data, such as for storing audio data. Memory 260 stores computer programs containing instructions executable in processor 210. The computer program may constitute various functional modules.
The processor 210 is a control center of the electronic device 200, connects various parts of the entire electronic device 200 using various interfaces and lines, and performs various functions of the electronic device 200 and processes data by running or calling a computer program stored in the processor 210 and calling data stored in the processor 210, thereby performing overall monitoring of the electronic device 200. Such as processor 210 controlling display 270 of electronic device 200 to display a picture, such as processor 210 controlling first piezoelectric ceramic 240 of electronic device 200 to emit a sound signal.
The first audio processor 220 is also electrically connected to the first piezoelectric ceramic 240, such as the first audio processor 220 and the first piezoelectric ceramic 240 are connected by copper wires. The first audio processor 220 can receive an audio signal sent by the central processing unit 210, the first audio processor 220 processes the audio signal received by the first audio processor 220, such as converting, amplifying, and the like, and the first audio processor 220 transmits the processed audio signal to the first piezoelectric ceramic 240 to drive the first piezoelectric ceramic 240 to generate vibration, thereby sending out a sound signal. The first audio processor 220 may be understood as a first audio processing module, or as a first power amplifier module.
The second audio processor 230 is also electrically connected to the second piezoelectric ceramic 250, such as the second audio processor 230 and the second piezoelectric ceramic 250 are connected by copper wires. The second audio processor 230 may receive the audio signal sent by the central processing unit 210, and the second audio processor 230 processes the audio signal received by the second audio processor 230, such as converting, amplifying, and the like, and transmits the processed audio signal to the second piezoelectric ceramic 250, so as to drive the second piezoelectric ceramic 250 to generate vibration and further send out a sound signal. The second audio processor 230 may be understood as a second audio processing module or as a second power amplifier module.
It is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
In practical applications, the first piezoelectric ceramic 240 disposed on the display 270 of the electronic device 200 and the second piezoelectric ceramic 250 disposed on the rear cover 290 interfere with each other during the process of generating the sound signal, so as to cancel the sound signal, thereby reducing the intensity of the sound signal.
Based on this, the embodiment of the present application may adjust the vibration direction of first piezoelectric ceramic 240 to be the same as the vibration direction of second piezoelectric ceramic 250, so that the sound signal emitted by first piezoelectric ceramic 240 is synchronous with the sound signal emitted by second piezoelectric ceramic 250, and superposition of the sound signal emitted by first piezoelectric ceramic 240 and the sound signal emitted by second piezoelectric ceramic 250 is realized, thereby increasing the intensity of the sound signal emitted by electronic device 200.
Referring to fig. 3, fig. 3 is a second structural block diagram of an electronic device according to an embodiment of the present disclosure. The input 2201 of the first audio processor 220 is electrically connected to the central processor 210, such as through a copper wire. The output end of the first audio processor 220 is electrically connected to the first piezoelectric ceramic 240, specifically, the positive electrode 2202 of the output end of the first audio processor 220 is connected to the positive electrode 241 of the first piezoelectric ceramic 240, and the negative electrode 2203 of the output end of the first audio processor 220 is connected to the negative electrode 242 of the first piezoelectric ceramic 240.
The input 2301 of the second audio processor 230 is electrically connected to the central processor 210, such as through a copper wire. The output end of the second audio processor 230 is electrically connected to the second piezoelectric ceramic 250, specifically, the positive electrode 2302 of the output end of the second audio processor 230 is connected to the negative electrode 252 of the second piezoelectric ceramic 250, and the negative electrode 2303 of the output end of the second audio processor 230 is connected to the positive electrode 251 of the second piezoelectric ceramic 250.
The first audio processor 220 may be normally connected to the first piezoelectric ceramic 240, and the second audio processor 230 may be connected to the second piezoelectric ceramic 250 in reverse by changing polarities of the circuit, so that when an audio signal is simultaneously applied to the first piezoelectric ceramic 240 and the second piezoelectric ceramic 250, a forward displacement and a reverse displacement are generated, so that vibration directions of the first piezoelectric ceramic 240 and the second piezoelectric ceramic 250 are the same, and thus the audio signal is superimposed and enhanced.
In some embodiments, one of a first piezoelectric ceramic 240 and a second piezoelectric ceramic 250 may emit a left channel signal and the other may emit a right channel signal to achieve stereo sound. Such as first piezoelectric ceramic 240 emitting a left channel signal and second piezoelectric ceramic 250 emitting a right channel signal. For example, first piezoelectric ceramic 240 emits a right channel signal and second piezoelectric ceramic 250 emits a left channel signal. First audio processor 220 may output a first channel signal to first piezoceramic 240 and second audio processor 230 may output a second channel signal to second piezoceramic 250. Wherein one of the first channel signal and the second channel signal is a left channel signal and one is a right channel signal.
Referring to fig. 4, fig. 4 is a third structural block diagram of an electronic device according to an embodiment of the present disclosure. The first audio processor 220 may include a first converter 221, and an input terminal 2211 of the first converter 221 may be connected with the central processor 210 to receive the analog signal transmitted by the central processor 210. The output terminal of the first converter 221 is connected to the first piezoelectric ceramic 240, specifically, the positive electrode 2212 of the output terminal of the first converter 221 is connected to the positive electrode 241 of the first piezoelectric ceramic 240, and the negative electrode 2213 of the output terminal of the first converter 221 is connected to the negative electrode 242 of the first piezoelectric ceramic 240. The first converter 221 may convert the analog signal it receives into a digital signal.
The second audio processor 230 may include a second converter 231, and an input end 2211 of the second converter 231 may be connected to the central processor 210 to receive the analog signal transmitted by the central processor 210. The output end of the second converter 231 is connected to the second piezoelectric ceramic 250, specifically, the positive electrode 2312 of the output end of the second converter 231 is connected to the negative electrode 252 of the second piezoelectric ceramic 250, and the negative electrode 2313 of the output end of the second converter 231 is connected to the positive electrode 251 of the second piezoelectric ceramic 250. The second converter 231 may convert the analog signal it receives into a digital signal.
It should be noted that the first audio processor 220 is not limited to the first converter 221, and the second audio processor 230 is not limited to the second converter 231.
Referring to fig. 5, fig. 5 is a fourth structural block diagram of an electronic device according to an embodiment of the present disclosure. The first audio processor 220 may include a first converter 221 and a first amplifier 222, and an input terminal 2211 of the first converter 221 may be connected with the central processor 210 to receive the analog signal transmitted by the central processor 210. The output 2214 of the first converter 221 is connected to a first amplifier 2221. The output terminal of the first amplifier 222 is connected to the first piezoelectric ceramic 240, specifically, the positive electrode 2222 of the output terminal of the first amplifier 222 is connected to the positive electrode 241 of the first piezoelectric ceramic 240, and the negative electrode 2223 of the output terminal of the first amplifier 222 is connected to the negative electrode 242 of the first piezoelectric ceramic 240. The first converter 221 may convert the analog signal it receives into a digital signal, and the first amplifier 222 may amplify the digital signal to obtain an amplified digital signal, and may transmit the amplified digital signal to the first piezoelectric ceramic 240.
The second audio processor 230 may include a second converter 231 and a second amplifier 232, and the input terminal 2311 of the second converter 23 may be connected to the central processor 210 to receive the analog signal transmitted by the central processor 210. The output 2314 of the second converter 231 is connected to a second amplifier 2321. The output end of the second amplifier 232 is connected to the second piezoelectric ceramic 250, specifically, the positive electrode 2322 of the output end of the second amplifier 232 is connected to the negative electrode 252 of the second piezoelectric ceramic 250, and the negative electrode 2323 of the output end of the second amplifier 232 is connected to the whole machine 251 of the second piezoelectric ceramic 250. The second converter 231 may convert the analog signal it receives into a digital signal, and the second amplifier 232 may amplify the digital signal to obtain an amplified digital signal, and may transmit the amplified digital signal to the second piezoelectric ceramic 250.
In some embodiments, first audio processor 220 may be interfaced with first piezoelectric ceramic 240 and second audio processor 230 may be interfaced with second piezoelectric ceramic 250. A first phase audio signal may be output to first piezoelectric ceramic 240 by the first audio processor to drive first piezoelectric ceramic 240 to vibrate toward a first direction. At the same time, an audio signal of a second phase is output to the second piezoelectric ceramics 250 through the second audio processor 230 to drive the second piezoelectric ceramics 250 to vibrate toward the first direction. Wherein the first phase and the second phase are opposite in direction. Therefore, the same direction of vibration generated by the first piezoelectric ceramic 240 and the second piezoelectric ceramic 250 can be realized by adjusting the phase of the audio signal, so that the sound signals emitted by the first piezoelectric ceramic 240 and the second piezoelectric ceramic 250 are superposed, and the intensity of the sound signals is further increased.
By last knowing, the first piezoceramics 240 that display screen 270 set up and the second piezoceramics 250 that back lid 290 set up can vibrate the sound of syntropy simultaneously, has avoided the problem that the space is not enough in laminating two piezoceramics devices on the display screen 270 in the structure, can increase piezoceramics's size to obtain bigger loudness and better subjective effect. And the risk that the loudness is reduced due to the interference of external conditions can be effectively reduced. Meanwhile, the audio signals can be superposed in the same direction, and the play-out effect is enhanced.
It should be noted that, because the first piezoelectric ceramic 240 disposed on the display 270 and the second piezoelectric ceramic 250 disposed on the rear cover 290 can simultaneously generate sound, the problem of greatly reducing sound caused when the single-sided vibration is buffered by the outside can be effectively avoided.
Referring to fig. 6, fig. 6 is a fifth structural block diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 200 may further include a rear camera 201, and the rear camera 201 may be disposed on a middle frame of the electronic device 200. The rear camera 201 is electrically connected to the processor 210, and can collect images to realize the functions of photographing or shooting. In some embodiments, first piezoelectric ceramic 240 may be disposed on a side of rear camera 201.
In other embodiments, the inner surface of the display screen may be provided with a plurality of first piezoelectric ceramics, which may be provided with a smaller size to achieve that a plurality of, such as two, first piezoelectric ceramics are provided on the inner surface of the display screen. The rear cover may be provided with a plurality of second piezoelectric ceramics. The number of the first piezoelectric ceramics is the same as or different from that of the second piezoelectric ceramics. Such as two for the first piezoelectric ceramics and two for the second piezoelectric ceramics. A first piezoelectric ceramic may be connected to a first audio processor, that is, the number of the first audio processors is the same as the number of the first piezoelectric ceramics, and a first audio processor may drive a first piezoelectric ceramic to vibrate to generate an acoustic signal. And one second piezoelectric ceramic is connected with one second audio processor, namely the number of the second audio processors is the same as that of the second piezoelectric ceramics, and one second audio processor can drive one second piezoelectric ceramic to vibrate so as to send out sound signals. The vibration direction of all the first piezoelectric ceramics is the same as the vibration direction of all the second piezoelectric ceramics. The vibration directions of all the first piezoelectric ceramics and the vibration directions of all the second piezoelectric ceramics can be simultaneously realized, so that the sound signals are superposed, and the intensity of the sound signals is further increased.
In other embodiments, the inner surface of the display screen is provided with two first piezoelectric ceramics, and the back cover is provided with two second piezoelectric ceramics. Two first audio frequency treater all are connected with central processing unit, and a first piezoceramics is connected to a first audio frequency treater's output, and a first audio frequency treater can drive a first piezoceramics vibration and send high frequency sound signal, and another audio frequency treater can drive another first piezoceramics vibration in order to send low frequency sound signal. The two second audio processors are connected with the central processing unit, the output end of one second audio processor is connected with one second piezoelectric ceramic, one second audio processor can drive one second piezoelectric ceramic to vibrate to send out middle-high frequency sound signals, and the other audio processor can drive the other second piezoelectric ceramic to vibrate to send out low-frequency sound signals.
The vibration direction of the first piezoelectric ceramic used for emitting the low-frequency sound signal is the same as that of the second piezoelectric ceramic used for emitting the low-frequency sound signal, so that the superposition of the sound signal on the low-frequency sound signal can be realized, and the strength of the low-frequency sound signal can be increased. The vibration direction of the first piezoelectric ceramic for emitting the medium-high frequency sound signal is opposite to that of the second piezoelectric ceramic for emitting the medium-high frequency sound signal, so that no superposition is generated on the medium-high frequency sound signal.
In practical application, the superposition effect of the low-frequency sound signals is better. Thus, in some embodiments only the superposition of low frequency sound signals may be defined, and not the superposition of mid and high frequency sound signals.
The electronic device provided by the embodiment of the application is 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 (13)
1. An electronic device, comprising:
the display screen is characterized in that a first piezoelectric ceramic is arranged on the surface of the display screen;
the rear cover is provided with second piezoelectric ceramics;
the central processing unit is electrically connected with the display screen;
the input end of the first audio processor is electrically connected with the central processing unit, the output end of the first audio processor is electrically connected with the first piezoelectric ceramic, and the first audio processor is used for driving the first piezoelectric ceramic to vibrate so as to send out sound signals; and
the input end of the second audio processor is electrically connected with the central processing unit, the output end of the second audio processor is electrically connected with the second piezoelectric ceramic, and the second audio processor is used for driving the second piezoelectric ceramic to vibrate so as to send out sound signals;
the vibration direction of the first piezoelectric ceramics is the same as the vibration direction of the second piezoelectric ceramics.
2. The electronic device of claim 1, wherein a positive pole of the output of the first audio processor is connected to a positive pole of the first piezoelectric ceramic, and a negative pole of the output of the first audio processor is connected to a negative pole of the first piezoelectric ceramic;
and the anode of the output end of the second audio processor is connected with the cathode of the second piezoelectric ceramic, and the cathode of the output end of the second audio processor is connected with the anode of the second piezoelectric ceramic.
3. The electronic device of claim 2, wherein the first audio processor comprises a first converter, an anode of an output of the first converter being connected to an anode of the first piezoelectric ceramic, a cathode of an output of the first converter being connected to a cathode of the first piezoelectric ceramic;
the second audio processor comprises a second converter, the anode of the output end of the second converter is connected with the cathode of the second piezoelectric ceramic, and the cathode of the output end of the second converter is connected with the anode of the second piezoelectric ceramic.
4. The electronic device of claim 2, wherein the first audio processor comprises a first converter and a first amplifier, an input of the first amplifier is connected to an output of the first converter, an anode of an output of the first amplifier is connected to an anode of the first piezoelectric ceramic, and a cathode of an output of the first amplifier is connected to a cathode of the first piezoelectric ceramic;
the second audio processor comprises a second converter and a second amplifier, wherein the input end of the second amplifier is connected with the output end of the second converter, the positive pole of the output end of the second amplifier is connected with the positive pole of the second piezoelectric ceramic, and the negative pole of the output end of the second amplifier is connected with the negative pole of the second piezoelectric ceramic.
5. The electronic device of claim 1, wherein the first audio processor is configured to output a first phase audio signal to the first piezoelectric ceramic to drive the first piezoelectric ceramic to vibrate in a first direction;
the second audio processor is used for outputting an audio signal with a second phase to the second piezoelectric ceramic so as to drive the second piezoelectric ceramic to vibrate towards the first direction;
wherein the first phase and the second phase are opposite.
6. The electronic device of claim 5, wherein the first audio processor comprises a first converter and a first amplifier, an input of the first amplifier being connected to an output of the first converter, an output of the first amplifier being connected to the first piezoceramic;
the second audio processor comprises a second converter and a second amplifier, wherein the input end of the second amplifier is connected with the output end of the second converter, and the output end of the second amplifier is connected with the second piezoelectric ceramic.
7. The electronic device of any of claims 1-6, wherein the first audio processor is configured to output a first channel signal to the first piezoceramic;
the second audio processor is used for outputting a second channel signal to the second piezoelectric ceramic;
wherein one of the first channel signal and the second channel signal is a left channel signal and the other is a right channel signal.
8. The electronic device of any of claims 1-6, further comprising:
the battery is electrically connected with the central processing unit and is positioned between the first piezoelectric ceramics and the second piezoelectric ceramics.
9. The electronic device according to any one of claims 1 to 6, wherein the first piezoelectric ceramic is provided on an inner surface of the display screen, and the second piezoelectric ceramic is provided on an inner surface of the rear cover.
10. The electronic device of any of claims 1-6, wherein the first piezoelectric ceramic is disposed on an inner surface of the display screen and the second piezoelectric ceramic is disposed within the back cover.
11. An electronic device, comprising:
the display screen is characterized in that the surface of the display screen is provided with at least two first piezoelectric ceramics;
the rear cover is provided with at least two second piezoelectric ceramics;
the central processing unit is electrically connected with the display screen;
the input ends of all the first audio processors are electrically connected with the central processing unit, the output end of one first audio processor is electrically connected with one first piezoelectric ceramic, and one first audio processor is used for driving one first piezoelectric ceramic to vibrate so as to send out sound signals; and
the input ends of all the second audio processors are electrically connected with the central processing unit, the output end of one second audio processor is electrically connected with one second piezoelectric ceramic, and one second audio processor is used for driving one second piezoelectric ceramic to vibrate so as to send out sound signals;
the vibration direction of all the first piezoelectric ceramics is the same as the vibration direction of all the second piezoelectric ceramics.
12. The electronic device according to claim 11, wherein the number of the at least two second piezoelectric ceramics is the same as the number of the at least two first piezoelectric ceramics.
13. An electronic device, comprising:
the display screen is characterized in that two first piezoelectric ceramics are arranged on the surface of the display screen;
the rear cover is provided with two second piezoelectric ceramics;
the central processing unit is electrically connected with the display screen;
the input ends of all the first audio processors are electrically connected with the central processing unit, the output end of one first audio processor is electrically connected with one first piezoelectric ceramic, one first audio processor is used for driving one first piezoelectric ceramic to vibrate so as to send out middle-high frequency sound signals, and the other audio processor is used for driving the other first piezoelectric ceramic to vibrate so as to send out low-frequency sound signals; and
the input ends of all the second audio processors are electrically connected with the central processing unit, the output end of one second audio processor is electrically connected with one second piezoelectric ceramic, one second audio processor is used for driving one second piezoelectric ceramic to vibrate so as to send out middle-high frequency sound signals, and the other second audio processor unit is used for driving the other second piezoelectric ceramic to vibrate so as to send out low-frequency sound signals;
the vibration direction of the first piezoelectric ceramic for emitting the low-frequency sound signal is the same as that of the second piezoelectric ceramic for emitting the low-frequency sound signal;
the vibration direction of the first piezoelectric ceramic for emitting the medium-high frequency sound signal is opposite to the vibration direction of the second piezoelectric ceramic for emitting the medium-high frequency sound signal.
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