WO2019191953A1 - Procédé de production de son associé à un écran et équipement terminal - Google Patents

Procédé de production de son associé à un écran et équipement terminal Download PDF

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Publication number
WO2019191953A1
WO2019191953A1 PCT/CN2018/081966 CN2018081966W WO2019191953A1 WO 2019191953 A1 WO2019191953 A1 WO 2019191953A1 CN 2018081966 W CN2018081966 W CN 2018081966W WO 2019191953 A1 WO2019191953 A1 WO 2019191953A1
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WO
WIPO (PCT)
Prior art keywords
screen
sound
vibration source
screen assembly
vibration
Prior art date
Application number
PCT/CN2018/081966
Other languages
English (en)
Chinese (zh)
Inventor
叶千峰
李芳庆
张洵
黎椿键
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2018/081966 priority Critical patent/WO2019191953A1/fr
Priority to CN201880078674.XA priority patent/CN111543039A/zh
Publication of WO2019191953A1 publication Critical patent/WO2019191953A1/fr

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the embodiments of the present application relate to the field of acoustic technologies, and in particular, to a screen sounding method and a terminal device.
  • the piezoelectric ceramic device is fixed on the middle frame of the mobile phone.
  • the piezoelectric ceramic device vibrates, the whole mobile phone vibrates and sounds through the middle frame of the mobile phone.
  • the mass of the mobile phone is large and the mass distribution is uneven, the problem of small sound volume and poor sound quality may be caused.
  • the technical problem to be solved by the embodiments of the present application is to provide a screen sounding method and a terminal device, which solve the problem that the volume of the sound of the screen is small and the sound quality is poor.
  • an embodiment of the present application provides a terminal device, including: a screen component, at least one vibration source, a device middle frame, a circuit main board, and a back cover;
  • the screen component is mounted on a front side of the frame in the device
  • the circuit board is mounted on a front side of the frame in the device and is located between the screen component and the middle frame of the device
  • the back cover is installed at a back side of the frame in the device
  • the vibration source is mounted on a back surface of the screen assembly, and the vibration source is used to drive the screen assembly to vibrate and sound in a direction perpendicular to the screen assembly.
  • the vibration source can drive the screen assembly to vibrate and sound, without causing the terminal device to vibrate or the vibration intensity of the terminal device is weak, thereby solving the problem that the sound of the screen sound is small and the sound quality is relatively low. Poor question.
  • the screen assembly and the in-device frame are connected by a connection assembly for obstructing the transmission of vibration between the screen assembly and the frame in the device. Therefore, it is possible to avoid the vibration of the frame in the device as much as possible, and further improve the sound quality and volume of the sound of the screen.
  • connection assembly includes: a retractable adhesive; a side of the screen assembly is coupled to the middle frame of the device by the retractable adhesive.
  • the connecting component comprises: an elastic support
  • the resilient support is clamped between the back of the screen assembly and the middle frame of the device.
  • the resilient support comprises one or more of the following supports:
  • Foam, spring, rubber support, and elastic band support are examples of foam, spring, rubber support, and elastic band support.
  • At least one hole is disposed in the frame of the device, and one end of the vibration source is mounted on the back of the screen assembly, and the other end is placed in the hole. Therefore, the thickness of the mobile phone can be reduced, and the slim and light design can be realized.
  • the circuit board includes: a driving circuit
  • the drive circuit is coupled to the vibration source via a flexible connector. This flexible connection also acts to not transmit vibration.
  • the source of vibration includes one or more of the following: a piezoelectric ceramic, a vibration motor, and a vibration exciter.
  • an embodiment of the present application provides a screen sounding method, where the method includes:
  • the driving circuit generates a first driving signal
  • the driving circuit transmits the first driving signal to a vibration source to drive the vibration source to vibrate;
  • the vibration source causes the screen assembly to vibrate and vocalize in a direction perpendicular to the screen assembly.
  • the method further includes: the driving circuit obtaining mono or multi-channel first audio data, generating a second driving signal according to the first audio data, and using the second driving Sending a signal to one or more dynamic speakers to drive the dynamic speaker to sound;
  • the driving circuit generates the first driving signal, and the driving circuit obtains the second audio data of the mono or multi-channel, and generates the first driving signal according to the second audio data.
  • mono or multi-channel sound can be realized by one or more dynamic speakers in speaker mode or other modes, and different mono or through the screen components can be realized or Multi-channel sounding, which achieves multi-channel sounding and enhances the stereoscopic effect of sound effects.
  • Yet another aspect of the present application provides a computer storage medium comprising computer instructions that, when executed on a terminal device, cause the terminal device to perform the methods described in the above aspects.
  • Yet another aspect of the present application provides a computer program product, when the computer program product is run on a computer, causing the computer to perform the methods described in the various aspects above.
  • the terminal device includes a screen component and at least one vibration source, wherein the vibration source is mounted on a back surface of the screen component, and the screen component can be driven when the vibration source vibrates Vibrate and vocalize in a direction perpendicular to the screen assembly.
  • the vibration source can drive the screen component to vibrate and sound, but does not drive the terminal device to vibrate or the vibration intensity of the terminal device is weak, and the screen component is relatively
  • the terminal device not only has a small mass but a uniform mass distribution, thereby solving the problem that the volume of the sound of the screen is small and the sound quality is poor.
  • FIG. 1 is an exploded perspective view of a terminal device according to an embodiment of the present application
  • Figure 2 is a cross-sectional view of Figure 1 in the A-A direction;
  • FIG. 3 is a schematic structural diagram of a driving circuit according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic flowchart diagram of an embodiment of a method according to an embodiment of the present disclosure
  • FIG. 5 is another schematic structural diagram of a driving circuit according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic flowchart diagram of another method embodiment according to an embodiment of the present disclosure.
  • FIG. 7 is a front view and left and right side views of a mobile phone according to an embodiment of the present application.
  • FIG. 8 is a rear view of a mobile phone according to an embodiment of the present application.
  • FIG. 9 is a side view of a top side and a bottom end of a mobile phone according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a user interface according to an embodiment of the present application.
  • the piezoelectric ceramic device is fixed on the middle frame of the mobile phone.
  • the piezoelectric ceramic device vibrates, the whole mobile phone including the screen assembly is vibrated and sounded through the middle frame of the mobile phone.
  • the quality distribution is uneven, which causes a problem of small sound volume and poor sound quality, and the vibration of the whole mobile phone sounds and causes the vibration of the hand. Strong, there are problems such as leakage.
  • the two-channel sound is realized by the moving coil speaker, and more channels such as three-channel or four-channel sound cannot be realized, resulting in poor stereoscopic sound effect, thereby affecting the user experience.
  • an embodiment of the present application provides an apparatus embodiment of a terminal device.
  • 1 is an exploded perspective view of the terminal device
  • FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1.
  • the terminal device may be an electronic device having a display and sounding function, such as a mobile phone, a tablet computer, a television, and the like.
  • the terminal device of this embodiment includes: a screen component 101, at least one vibration source 102, a device middle frame 103, a circuit main board (not shown), and a back cover 107.
  • a screen component 101 at least one vibration source 102
  • a device middle frame 103 at least one vibration source 102
  • a circuit main board not shown
  • a back cover 107 The following describes each component and the connection relationship between the components.
  • the screen component 101 refers to a component having a display function.
  • the screen component 101 may include a Light Emitting Diode (LED) module, a Liquid Crystal Display (LCD) module, or One or more light emitting modules in an organic light emitting display (English: Organic Light Emitting Display, OLED) module.
  • the screen assembly 101 includes a front side, a back side, and a side surface, wherein a front side of the screen assembly 101 refers to a display surface of the screen assembly 101, and a back side of the screen assembly 101 refers to the front side opposite to the front side.
  • the screen assembly 101 can include a display screen and a touch screen, wherein the touch screen is fixed to a front side of the display screen for sensing a user's touch operation, the display screen for displaying a user interface.
  • the vibration source 102 refers to a device capable of converting electrical energy into mechanical energy, and may include one or more of the following: a piezoelectric ceramic, a vibration motor, and a vibration exciter. Taking a piezoelectric ceramic device as an example, after a driving signal is input to the piezoelectric ceramic device, the piezoelectric ceramic device is deformed to generate vibration.
  • the vibration source 102 is mounted on the back surface of the screen assembly 101. When the vibration source 102 vibrates, the screen assembly 101 can be driven in a direction perpendicular to the screen assembly 101, that is, the z-axis direction in FIG. Vibrate on.
  • the vibration source 102 can be mounted on the back surface of the screen assembly by various mounting methods.
  • the vibration source 102 can be pasted on the back surface of the screen assembly 101.
  • the vibration source 102 can also be Mounted on the back surface of the screen assembly 101 by a connector such as a screw.
  • the number of the vibration sources may be set according to the parameters such as the area and the quality of the screen assembly.
  • FIG. 1 and FIG. 2 are examples of including three vibration sources, which are not limited in the embodiment of the present application.
  • the terminal device further includes a frame 103 in the device, that is, a frame for connecting and supporting components in the terminal device such as the screen component 101, the circuit board, and the back cover 107.
  • the frame 103 of the device may be a non-detachable frame, or may be composed of a plurality of frames, which is not limited by the embodiment of the present application.
  • the screen assembly 101 is mounted on the front side of the frame 103 in the device
  • the circuit board is mounted on the front side of the frame 103 in the device and located between the screen assembly 101 and the device frame 103
  • the back A cover 107 is mounted on the back of the frame in the device.
  • one or more dynamic speaker 106s may be mounted on the back of the frame in the device.
  • the apparatus middle frame 103 may have one or more recesses.
  • the screen assembly 101 is mounted in one of the recesses.
  • the recess shown is formed by the first portion 1031 and the second portion 1032 of the frame 103 in the device, and the side of the screen assembly 101 is connected to the first portion 1031 of the frame 103 in the device.
  • the back side of the screen assembly 101 is coupled to the second portion 1032 of the frame in the apparatus by a connector.
  • the vibration source 102 may have a separation distance from the frame 103 in the device, that is, the vibration source 102 does not contact the frame 103 in the device. Therefore, when the vibration source 101 vibrates, the vibration of the frame 103 in the device is not driven or the vibration intensity of the frame 103 in the device is weak, thereby avoiding the vibration of the terminal device or the vibration of the terminal device. The intensity is weak.
  • the device middle frame 103 may be provided with at least one hole 1033, one end of the vibration source is mounted on the back of the screen assembly, and another One end is placed in the hole 1033, and this design can reduce the thickness of the terminal device and improve portability.
  • the vibration source 102 When a drive signal is input to the vibration source 102, the vibration source 102 can be driven to vibrate in a direction perpendicular to the screen assembly 101, that is, in the z-axis direction in FIG. Since the vibration source 102 is connected to the back surface of the screen assembly 101 and is not connected to the device middle frame 103, when the vibration source 102 vibrates, the screen assembly 101 can be driven to vibrate in the z-axis direction instead of The terminal device is vibrated by the frame 103 in the device or the vibration intensity of the terminal device is weak, so that the screen assembly 101 pushes the surrounding air to flow and realize the sound of the screen.
  • the vibration source 102 can drive the screen assembly 101 to vibrate and sound, but does not drive the terminal device to vibrate or the vibration intensity of the terminal device is higher.
  • the screen component 101 is not only small in quality but also uniform in mass distribution with respect to the terminal device, and solves the problem of small sound volume and poor sound quality.
  • the vibration of the terminal device is not driven or the vibration intensity of the terminal device is weak, the problem of strong vibration of the hand grip and leakage of the sound is solved.
  • the screen component 101 and the device-in-box 103 may be connected by a connection component.
  • a connection component that hinders the transmission of the vibration may be used, thereby obstructing the screen assembly 101 and the The transmission of vibration between the frames 103 in the device.
  • the implementation of the connection assembly is exemplified below.
  • the attachment assembly can include a retractable adhesive 105, such as a soft, flexible dispensing, such as the side of the screen assembly that passes through the retractable adhesive The box connection in the device.
  • the retractable adhesive 105 is capable of connecting the screen assembly 101 and the device middle frame 103 to fix the screen assembly 101, and is also capable of vibrating and sounding when the screen assembly 101 is vibrating.
  • the transmission of the vibration of the screen assembly 101 acts as a hindrance, so that the vibration of the screen assembly 101 does not cause the frame 103 in the device to vibrate or the vibration intensity of the frame 103 in the device is weak.
  • the cured viscose after curing meets one or more of the following parameter requirements: Shore hardness of 25 to 30 and shear stress of 200 to 900 psi. Inches and elongation at break greater than 500%.
  • the connection assembly can include an elastic support 104.
  • the elastic support member 104 is sandwiched between the back surface of the screen assembly 101 and the device middle frame 103, that is, one end of the elastic support member 104 is connected to the back of the screen assembly 101, and the other end is connected.
  • the device is in block 103.
  • the elastic support member 104 can fix and support the screen assembly 101, and can also be used when the screen assembly 101 vibrates and sounds.
  • the transmission of the vibration of the screen assembly 101 acts as a hindrance, so that the vibration of the screen assembly 101 does not cause the frame 103 in the device to vibrate or the vibration intensity of the frame 103 in the device is weak.
  • the elastic support member 104 is a foam, and the foam may be respectively pasted on the back surface of the screen assembly 101 and the device middle frame 103 by double-sided adhesive, when the screen assembly 101 vibrates.
  • the foam can block the vibration of the screen assembly 101.
  • the elastic support member 104 such as the foam does not contact the circuit board.
  • the elastic support member 104 may be one or more of a spring, a rubber support member, and an elastic rubber band support member in addition to the foam, which is not limited by the embodiment of the present application.
  • the screen assembly 101 can also be connected to the device middle frame 103 through the elastic adhesive 105 and the elastic support member 104, or through other connecting members.
  • the device 103 is connected to the device, which is not limited by the embodiment of the present application.
  • the vibration source 102 can vibrate under the drive of a drive circuit.
  • the device terminal further includes: a driving circuit, configured to drive the vibration source 102 to drive, for example, the driving circuit generates a driving signal and outputs the driving signal to the vibration source 102, The vibration source 102 vibrates according to the drive signal.
  • the driving circuit may include a processor 301, an audio codec 302, and a power amplifier 303, wherein the processor 301 performs signal processing on the audio to be played to obtain a digital signal, and outputs the digital signal to the audio.
  • the codec 302 performs digital-to-analog conversion to obtain an analog signal, and outputs the analog signal to the power amplifier 303 for power amplification to obtain the drive signal to drive the vibration source 102.
  • the codec 302 can also be replaced by a digital to analog converter.
  • the processor 301 can be an advanced RISC machine (English: Advanced RISC Machine, ARM for short) processor or a digital signal processing (English: Digital Signal Processing, DSP for short) processor system (English: System on Chip) For short, SoC), the power amplifier 303 can be a smart power amplifier (English: Smart PA) or a high voltage power amplifier.
  • the driving circuit can be connected to the vibration source 102 through a flexible connector.
  • the driving circuit can pass through a flexible printed circuit board (FPC) connector and combined with a board to board (English: board) To board, abbreviated as: BTB)
  • the connector or the spring piece is connected to the vibration source 102.
  • the drive circuit can be connected to the vibration source 102 by means of flying wire welding.
  • an embodiment of the present invention provides a method for performing a method for sounding a screen.
  • This embodiment can be used in any of the foregoing apparatus embodiments, and can also be used in other terminal devices. Not limited.
  • the driving circuit generates a first driving signal.
  • the first driving signal is used to drive the vibration of the vibration source.
  • the drive circuit generates a first drive signal for driving the vibration source 102 to vibrate in a direction perpendicular to the screen assembly 101.
  • the driving circuit sends the first driving signal to a vibration source to drive the vibration source to vibrate.
  • the vibration source is capable of converting electrical energy into mechanical energy, and may include one or more of the following devices: a piezoelectric ceramic, a vibration motor, and a vibration exciter.
  • a piezoelectric ceramic device as an example, after the driving circuit inputs the first driving signal to the piezoelectric ceramic device, the piezoelectric ceramic device is deformed to generate vibration.
  • the vibration source drives the screen assembly to vibrate and sound in a direction perpendicular to the screen assembly.
  • the screen assembly connected to the vibration source when the vibration source vibrates, the screen assembly connected to the vibration source can be driven to vibrate and sound in a direction perpendicular to the screen assembly.
  • the vibration source may be installed on the back side of the screen assembly as shown in FIG. 1 and FIG. 2, and is not in contact with the middle frame of the device of the terminal device.
  • FIG. 1 and FIG. 2 For details, refer to the embodiment corresponding to FIG. 1 and FIG. The relevant content, no longer repeat here.
  • the vibration source After inputting the first driving signal to the vibration source, the vibration source can be driven to vibrate in a direction perpendicular to the screen assembly, and when the screen assembly vibrates, it can push the surrounding air to flow, thereby realizing the sound of the screen .
  • the vibration source can drive the screen component to vibrate and sound, without vibrating the terminal device or the vibration intensity of the terminal device is weak, not only
  • the sound hole is disposed on the front side to enable a full screen, and the screen assembly is not only small in mass but uniform in mass distribution with respect to the terminal device, and solves the problem of small sound volume and poor sound quality.
  • the terminal device is not vibrated or the vibration intensity of the terminal device is weak, the problem that the hand vibration is strong and the sound leakage is present is solved.
  • the terminal device generally has two sounding modes: an earpiece mode and a speaker mode, and the sounding methods of the two sounding modes are specifically described below.
  • the terminal device When the terminal device is in the earpiece mode, for example, when the user answers the phone, listens to the voice message, or the like, the terminal device can implement the sound of the screen through the above method embodiment.
  • the driving circuit when the terminal device is in the earpiece mode, the driving circuit outputs a first driving signal to the vibration source 102 , and the vibration source 102 drives the screen component 101 to vibrate and sound.
  • the terminal device When the terminal device is in the speaker mode, for example, when the terminal device is playing an audio resource or the like, the terminal device may implement the sound of the screen through the method embodiment of the screen sounding method, or may be implemented by the dynamic speaker of the terminal device.
  • the sound can also be combined with the method embodiment of the above-mentioned screen sounding method and the dynamic speaker to realize multi-channel sounding, for example, monophonic or multi-channel sounding through a moving coil speaker, and at the same time, mono or multi-channel sounding is realized.
  • the sound of the channel The method embodiment combined with the screen sounding method and the multi-channel sounding implementation of the moving coil speaker will be specifically described below.
  • the embodiment of the present application provides another method embodiment of a method for sounding a screen.
  • This embodiment can be used in any of the foregoing device embodiments, and can also be used in other terminal devices. This is not limited.
  • the driving circuit obtains first or multi-channel first audio data, generates a second driving signal according to the first audio data, and sends the second driving signal to one or more dynamic speakers to drive the The moving ring speaker sounds.
  • the driving circuit may perform signal processing on the audio to be played to obtain mono or multi-channel first audio data, for example, obtain audio data of the left channel and the right channel, as the first An audio data.
  • the drive circuit shown in FIG. 6 will be described below as an example.
  • the drive circuit shown in FIG. 6 further includes a power amplifier 601 and a power amplifier 602 as compared with the drive circuit shown in FIG.
  • the processor 301 acquires audio to be played in the speaker mode, and performs signal processing, such as filtering, gain adjustment, and the like on the audio to be played, obtaining a digital signal of the left channel and a digital signal of the right channel,
  • the processor 301 sends the digital signal of the left channel and the digital signal of the right channel to the audio codec 302 for digital-to-analog conversion, and obtains an analog signal of the left channel and an analog signal of the right channel, and simulates the left channel.
  • the signal is sent to the power amplifier 601 to obtain a drive signal of the left channel, and the drive signal of the left channel is sent to the dynamic speaker 603 to drive the dynamic speaker 603 to sound, and the user hears the sound of the left channel.
  • the audio codec 302 transmits the analog signal of the right channel to the power amplifier 602, obtains the driving signal of the right channel, and transmits the driving signal of the right channel to the dynamic speaker 604 to drive the dynamic speaker 604 to sound, the user I heard the sound of the right channel.
  • sound holes may be respectively disposed on the bottom side surface and the top side surface of the terminal device.
  • the driving circuit obtains second or multi-channel second audio data, and generates the first driving signal according to the second audio data.
  • the audio to be played may be subjected to signal processing to obtain second or multi-channel second audio data.
  • the first audio data and the second audio data may be audio data of different channels corresponding to the same audio to be played, for example, performing signal processing on audio such as a soundtrack and a human voice in a certain movie to obtain a left channel and The audio data of the right channel, and the audio data of the center channel, wherein the audio data of the left channel and the right channel are used as the first audio data, and the audio data of the center channel is used as the second audio data.
  • the drive circuit shown in FIG. 6 will be described below as an example.
  • the processor 301 After the processor 301 performs signal processing on the audio to be played, in addition to the digital signal of the left channel and the digital signal of the right channel, a digital signal of the center channel is obtained, and the center sound is obtained.
  • the digital signal of the track is sent to the audio codec 302 and the power amplifier 303 to obtain a driving signal of the center channel, and the driving signal of the center channel is sent to drive the vibration source to vibrate, thereby causing the screen component to vibrate and sound.
  • the user hears the sound of the center channel.
  • the processor 301 performs signal processing on the to-be-played audio, the processor may perform signal processing according to the equalizer (English: equalizer, EQ) curve of the to-be-played audio, thereby achieving a better sound effect.
  • the equalizer English: equalizer, EQ
  • the present embodiment can realize mono or multi-channel sounding through one or more dynamic speaker in the speaker mode or other modes, and realize different through the screen component when playing the same audio data.
  • Mono or multi-channel sound which enables multi-channel sound, for example, can achieve three-channel or four-channel sound, enhance the stereoscopic effect of sound.
  • the left and right channels are respectively vocalized by two moving coil speakers, and the center channel vocalization is realized by the screen component, which can enhance the sound effect of the vocal part, so that the user has better Sound experience.
  • more channels of sound can be realized by an external device such as a package, which is specifically described below.
  • the terminal device can transmit the mono or multi-channel audio data to the dynamic speaker and/or the vibration source in the external device such as the package, thereby realizing Multi-channel sound.
  • the processor 301 determines that the type C interface has an external device such as a package, and sends the third or multi-channel third audio data to the external device, and the processor 605 in the external device receives After the third audio data, the third audio data is sent to the digital-to-analog converter 606 and the power amplifier 607 to obtain a third driving signal, and the third driving signal is sent to the vibration source 608 to drive the vibration source 608 to vibrate.
  • the source 608 drives the external device to vibrate and sounds.
  • the first audio data, the second audio data, and the third audio data may be audio data corresponding to different channels, for example, the first audio data is a left channel and a right sound of a movie.
  • Audio data of a mid-high range portion of the track is audio data of a center channel
  • the third audio data is audio data of a mid-bass channel. It can be seen that an external device such as a package can realize the sound of more channels, further enhancing the stereoscopic effect of the sound effect and increasing the user experience.
  • an embodiment of the method for providing a sounding method is provided in the embodiment of the present application. This embodiment is described by using a mobile phone as an example.
  • the mobile phone includes a touch screen, a display screen, one or more vibration sources, a circuit board, a mobile phone middle frame, two moving coil speakers, and a back cover, from front to back.
  • the middle frame of the mobile phone functions to fix and support the touch screen, the display screen, the circuit board, the two dynamic speakers and the back cover.
  • the middle frame of the mobile phone may be an integrated frame, or may be a detachable frame in which a plurality of frames are formed by connecting members such as screws.
  • the material of the middle frame of the mobile phone can be made of metal such as aluminum alloy, stainless steel, steel-aluminum composite material or titanium alloy. The following describes the connection between each other component and other components and the middle frame of the mobile phone.
  • a display screen and a touch screen are mounted on the front surface of the middle frame of the mobile phone, wherein the touch screen is fixed on the front side of the display screen, the touch screen can sense the user's touch operation, and the display screen can be an OLED module for displaying one or more user interfaces.
  • a user interface with a volume adjustment button is displayed on the display screen, and after the user performs a sliding operation on the adjustment button on the touch screen, the circuit board detects a sliding event, and determines the volume adjustment according to the position change corresponding to the sliding event.
  • the amplitude value and direction are adjusted according to the amplitude value and direction.
  • the front side of the touch screen can also be provided with a layer of glass, and no sound hole is needed on the glass to realize a full screen.
  • the comprehensive screen refers to the screen with a relatively high screen, which can be a full screen as shown in Fig. 7, or a full screen such as a bangs screen or a hollowed-out shaped full screen.
  • Fig. 7 is a front view and a left and right side view of the mobile phone. In Fig. 7, the mobile phone includes a full screen 701, and no sound hole is provided on the front side of the mobile phone.
  • the side of the touch screen and the side of the display can be glued to the frame of the mobile phone through a full circle of glue, which can play the role of dustproof and waterproof.
  • the back of the display can be pasted in the mobile phone by foam with double-sided adhesive.
  • the front side of the frame supports and fixes the display and touch screen.
  • the dispensing may be soft and elastic, for example, satisfying one or more of the following parameters: a Shore hardness of 25 to 30, a shear stress of 200 to 900 psi, and an elongation at break of greater than 500%.
  • the display screen is connected to the middle frame of the mobile phone through the soft foam, so when the touch screen and the display screen vibrate in the vertical direction, not only the foam can provide elastic support during the round-trip vibration, but also the dispensing and the foam do not transmit vibration. Reduce the vibration of the frame in the phone.
  • This connection of dispensing and foam can be seen, making the display screen and touch screen like a horn diaphragm, enabling linear reciprocating vibration in the vertical direction.
  • One end of one or more vibration sources is attached to the back of the display screen, and the other end is placed in a hole provided in the frame of the mobile phone, thereby reducing the thickness of the mobile phone and achieving a slim and light design.
  • the vibration source can vibrate under the driving circuit of the circuit board, and the display screen and the touch screen vibrate in a direction perpendicular to the display screen and the touch screen, pushing the surrounding air to realize the sound of the screen.
  • the drive circuit can be connected with an FPC connector, and the FPC connector is connected to the vibration source through a BTB connector or a spring piece. This flexible connection can also transmit vibration.
  • the circuit board can be a printed circuit board (English: Printed Circuit Board, referred to as: PCB), which is used to realize the functions of calling, displaying, etc. of the mobile phone, installed and fixed on the front side of the frame of the mobile phone, and the circuit board and the vibration source, the foam and the The display does not touch.
  • PCB Printed Circuit Board
  • the specific structure of the driving circuit can be as shown in FIG. 6, and details are not described herein again.
  • Two traditional dynamic speakers can be installed on the back of the middle frame of the mobile phone to support multi-channel sounding in the speaker mode, and in order to assist the dynamic speaker sounding, two discharge sound holes can be respectively arranged on the side of the mobile phone, as shown in FIG.
  • the top side 91 and the bottom side 92 of the mobile phone wherein a discharge sound hole 911 can be disposed on the top side of the mobile phone, a sound guiding channel is disposed between the discharging sound hole 911 and a moving coil speaker, and the other discharging sound hole 912 can be It is disposed on the bottom side of the mobile phone, and a sound guiding channel is also disposed between the discharge sound hole 912 and the other moving coil speaker.
  • the sound hole is a circular hole in the figure as an example, in fact, The sound hole may also be a hole of another shape such as a square hole.
  • the two moving coil speakers can convert electric energy into mechanical energy under the driving circuit of the circuit board, so that the vibration of the speaker diaphragm is realized, and the air is pushed out from the sound hole through the sound guiding channel to realize sound generation.
  • the back of the frame of the mobile phone can also be connected with a back cover to protect the mobile phone from dust, water, and fall.
  • a plurality of openings may be provided in the back cover, and a dual camera 801 and a mobile phone flashlight 802 are installed at the plurality of openings.
  • the sound of the screen can be realized by the vibration source pasted on the back of the display screen, or the sound can be realized by the conventional dynamic speaker.
  • the sounding principle of the sound of the screen is: the driving circuit drives the vibration source vibrating on the back of the display screen, and the vibration source vibrates to drive the display screen and the touch screen to vibrate in the vertical direction to push the surrounding air to realize the sound of the screen.
  • the visible screen mode not only does not need to set the sound hole on the front side to enable a full screen, but also because the display screen and the touch screen vibrate, through the soft dispensing and the foam on the back of the display, the vibration will not be transmitted to the middle frame of the mobile phone.
  • the sounding principle of the dynamic speaker is: the driving circuit drives the diaphragm vibration of the moving coil speaker, and the air is pushed out from the sound hole through the sound guiding channel to realize the sound.
  • the sound can be sounded in the earphone mode through the screen sound, or can be sounded in the speaker mode through the dynamic speaker, as described below.
  • the circuit board detects the call event and further detects whether the headset is connected. If it is connected, it sounds through the earphone, and if it is not connected, it is set to the earpiece mode.
  • the communication module of the circuit board receives the audio data such as the voice transmitted by the opposite end of the call, and the processor 301 in the driver circuit acquires the audio data and performs filtering processing on the audio data, and then outputs the signal to the audio decoder.
  • the vibration source 302 performs digital-to-analog conversion to obtain an analog signal, which is amplified by the power amplifier 303 and output to the vibration source, and the vibration source drives the touch screen and the display screen to vibrate and sound.
  • the vibration source drives the touch screen and the display screen to vibrate and sound.
  • the user can switch the handset mode to the speaker mode during the call.
  • a hands-free button is displayed on the display screen, and after the user performs a click operation on the hands-free button on the touch screen, the circuit board detects a switching event, and switches the handset mode to the speaker mode, and the driver is driven at this time.
  • the circuit stops driving the vibration source, that is, the audio codec 302 no longer transmits the generated analog signal to the power amplifier 303, the display screen and the touch screen stop vibrating and vocalizing, and the driving circuit sends a driving signal to one or both of the moving coil speakers.
  • the user does not need to place the ear near the touch screen and the display screen, and can also hear the voice transmitted from the opposite end of the call.
  • the drive circuit stops driving the dynamic speaker, and the dynamic speaker stops vibrating and sounding.
  • the process of sounding when a user listens to a voice message is similar to the process of sounding when answering a call.
  • the circuit board can detect whether the user places the ear near the earpiece, and if so, sets it to the earphone mode and sounds through the vibration source, and if not, sets the speaker mode to the speaker mode and passes the dynamic speaker. Sounds.
  • the play button displayed on the display screen can be clicked through the touch screen, the circuit board detects the playing event, and the driving circuit drives the vibration source and the moving coil speaker to realize multi-channel sounding. Produces a three-dimensional sound effect.
  • the specific implementation process of multi-channel sounding will be described below.
  • the processor 301 of the drive circuit reads the movie from the phone memory, the song waits to play the audio, or acquires the online movie according to the audio address, and the song waits to play the audio, wherein the audio to be played may be two channels or more.
  • the audio data of the channel the processor 301 performs signal processing such as filtering and gain equalization on the audio to be played, and extracts the audio data of the left channel, the audio data of the right channel, and the center sound from the processed audio to be played.
  • Audio data of the track and output the audio data of the three channels to the audio decoder 302 for digital-to-analog conversion to obtain an analog signal of the left channel, an analog signal of the right channel, and an analog signal of the center channel
  • the analog signal of the left channel and the analog signal of the right channel are respectively output to the two dynamic coil speakers through the power amplifier 601 and the power amplifier 602, and the two moving coil speakers are driven to sound, thereby realizing the left sound in the movie and the song played to the user.
  • the audio decoder 302 outputs the analog signal of the center channel to the vibration source to drive the vibration of the vibration source.
  • the vibration source drives the touch screen and the display screen to vibrate and sound, thereby realizing the sound of the center channel in the movie and the song, that is, the voice of the human voice part.
  • the sound of the screen realized by the vibration source is not only used in the process of talking, but also acts as an auxiliary external audio mode when playing movies, songs, etc., increasing the sound field of the forward impact, resulting in more surround and immersion.
  • a three-dimensional sound experience combined with a comprehensive screen design, while improving the user's hearing and visual experience.
  • the sound of the center channel can be enhanced by the sound of the screen, which enhances the sound of the vocal part of the movie and music.
  • the fourth channel sound can also be realized by the external mobile phone package box.
  • the mobile phone package includes a cover and a bottom of the case, and the cover can be reversely fastened to the back of the bottom of the case, and a mobile phone mounting slot is arranged on the front of the bottom of the case for fixing the mobile phone, and a vibration source is attached to the back of the bottom of the case.
  • the processor 301 detects that the mobile phone package is externally connected through the type C interface, the audio data of the fourth channel other than the left channel, the right channel, and the center channel is extracted from the audio to be played, and the fourth channel is used.
  • the audio data is output to the processor on the mobile phone box, and the audio data is received by the processor on the mobile phone box and subjected to simple signal processing, and then the processed audio data is sequentially output through the digital-to-analog converter and the power amplifier to the audio data.
  • the vibrator on the box of the mobile phone drives the vibrator on the box of the mobile phone to vibrate, and the bottom of the box of the mobile phone box vibrates and sounds when the driver on the box of the mobile phone vibrates.
  • the left channel and the right channel may be the high-pitched portions of the left channel and the right channel, and the fourth channel may be the mid-bass channel, so that the bottom of the box of the mobile phone box vibrates and sounds, and the user can play to the user.
  • the user plays the sound of the middle and low sound channels in the movie and the song, which further enhances the stereo sound effect.
  • the audible effect of the mobile phone can also be set.
  • the user selects the phone's settings icon, general options, and accessibility options through the touch screen, where the accessibility options provide multiple adjustments.
  • the auxiliary function option is provided with a switch for mono audio and a switch for sounding on the screen. The user can operate the switch of the mono audio to enable and disable the mono play function, and the vibration source, Both dynamic speakers provide mono sound, and the user can also turn the screen sound function in speaker mode on and off by operating the on-screen switch.
  • the auxiliary function option can also provide a volume adjustment lever with a screen sound. The user can slide the adjustment knob on the adjustment lever to adjust the volume of the sound of the screen.
  • the user can increase the volume of the sound of the screen. Highlight the sound of the vocals when playing a movie.
  • various channel switches and volume adjustment levers for each channel are available in the auxiliary function options.
  • a center channel switch and a center channel volume adjustment lever are provided, and the user can operate the center channel.
  • the switch turns the center channel playback function on and off, and slides the adjustment knob on the center channel's adjustment lever to adjust the volume of the center channel.
  • the user can also adjust the sound through various applications with sound adjustment. For example, the user can adjust the sound of each channel by turning on the equalization button on the interface of the application, or can increase the volume of the center channel or center by turning on the enhanced vocal button.
  • the sound of the channel is added to the sound processing such as echo, and in addition, the background sound can be removed by the application, and the bass sound effect can be enhanced, which will not be enumerated here.
  • the present application also provides a computer readable storage medium comprising computer instructions that, when executed by a processor of a terminal device, enable the terminal device to perform some or all of the steps of any of the above method embodiments.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • wire eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be stored by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

La présente invention concerne un procédé de production de son associé à un écran et un équipement terminal. L'équipement terminal comprend un ensemble écran, au moins une source de vibration, un cadre intermédiaire d'équipement, une carte principale de circuit imprimé et un capot arrière, l'ensemble écran étant monté sur la face avant du cadre intermédiaire d'équipement, la carte principale de circuit imprimé étant montée sur la face avant du cadre intermédiaire d'équipement et étant située entre l'ensemble écran et le cadre intermédiaire d'équipement, et le capot arrière étant monté sur la face arrière du cadre intermédiaire d'équipement; et la source de vibration est montée sur la face arrière de l'ensemble écran et est utilisée pour amener l'ensemble écran à vibrer et produire un son dans une direction perpendiculaire à l'ensemble écran. La présente invention résout les problèmes de faible volume sonore et de mauvaise qualité sonore de la production de son associée à un écran.
PCT/CN2018/081966 2018-04-04 2018-04-04 Procédé de production de son associé à un écran et équipement terminal WO2019191953A1 (fr)

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PCT/CN2018/081966 WO2019191953A1 (fr) 2018-04-04 2018-04-04 Procédé de production de son associé à un écran et équipement terminal
CN201880078674.XA CN111543039A (zh) 2018-04-04 2018-04-04 一种屏幕发声方法及终端设备

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CN113286029A (zh) * 2020-02-20 2021-08-20 北京小米移动软件有限公司 一种终端设备
CN114466097A (zh) * 2021-08-10 2022-05-10 荣耀终端有限公司 防漏音的移动终端及移动终端的声音输出方法
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CN112135229A (zh) * 2020-09-25 2020-12-25 精拓丽音科技（北京）有限公司 一种发声组件及电子设备
CN115379357A (zh) * 2021-05-21 2022-11-22 上海艾为电子技术股份有限公司 一种振膜控制电路、振膜控制方法、芯片及电子设备
CN113411527B (zh) * 2021-06-17 2023-05-19 康佳集团股份有限公司 一种显示装置的隐形声道结构及显示装置
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CN114466097A (zh) * 2021-08-10 2022-05-10 荣耀终端有限公司 防漏音的移动终端及移动终端的声音输出方法
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