WO2021185173A1 - 一种移动终端 - Google Patents

一种移动终端 Download PDF

Info

Publication number
WO2021185173A1
WO2021185173A1 PCT/CN2021/080487 CN2021080487W WO2021185173A1 WO 2021185173 A1 WO2021185173 A1 WO 2021185173A1 CN 2021080487 W CN2021080487 W CN 2021080487W WO 2021185173 A1 WO2021185173 A1 WO 2021185173A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
pole
coil
display module
mobile terminal
Prior art date
Application number
PCT/CN2021/080487
Other languages
English (en)
French (fr)
Inventor
张�成
陈文浩
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 EP21772355.0A priority Critical patent/EP4089987A4/en
Priority to US17/802,419 priority patent/US20230079983A1/en
Publication of WO2021185173A1 publication Critical patent/WO2021185173A1/zh

Links

Images

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
    • 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
    • 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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • 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
    • H04R9/02—Details
    • 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
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/08—Magnetic elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

Definitions

  • This application relates to the technical field of screen sound generation, and in particular to a mobile terminal.
  • a vibrator can be set on the back of the display screen of the mobile phone.
  • the driving force provided by the vibrator to the display screen can drive the display screen to vibrate.
  • the display screen can act as a vibrating membrane to push the air to produce sound, so as to realize the sound of the screen. In this way, there is no need to punch holes and install the handset on the front of the mobile phone, so that the purpose of increasing the screen ratio of the mobile phone can be achieved.
  • the vibrator is provided with a coil for generating the above-mentioned driving force.
  • the coil needs to have a larger number of turns.
  • the number of turns of the coil is proportional to its impedance, and when the sound frequency is high, the impedance of the coil will further increase as the sound frequency increases.
  • the screen sounds in the high frequency range, and the current on the coil will decrease due to the increase in impedance, so that the driving force provided by the vibrator to the screen is insufficient, resulting in insufficient high-frequency volume from the mobile phone.
  • the embodiment of the present application provides a mobile terminal, which is used to improve the problem of insufficient volume in the high frequency band when the mobile terminal implements screen sound.
  • a mobile terminal including a middle frame, a display module, and at least one vibrator.
  • the display module is connected with the middle frame, and a accommodating cavity is formed between the display module and the middle frame. At least a part of the vibrator is arranged in the accommodating cavity.
  • the vibrator includes a first magnet, a second magnet, a coil, and at least one third magnet. In the direction perpendicular to the display surface of the display module, the vibrator is used to drive the display module to vibrate up and down.
  • the first magnet, the coil and the third magnet are all connected to the back of the display module.
  • the first magnet is located in the closed area formed by the wire of the coil.
  • the third magnet is located on the side of the coil away from the first magnet.
  • the second magnet is connected to the middle frame, and the second magnet and the first magnet are positioned opposite to each other.
  • the first pole of the first magnet, the first pole of the second magnet, and the second pole of the third magnet are close to each other, so that at least a part of the magnetic field lines pass through the surface of the coil close to the first magnet and the surface of the coil close to the third magnet. Coil.
  • the magnetizing direction of the third magnet that is, the first pole of the first magnet, the first pole of the second magnet, and the direction of the third magnet
  • the second poles are close to each other, which can forcibly stipulate the path and direction of the magnetic field lines in the space where the magnet is located.
  • the direction of most of the magnetic lines of force entering the coil is close to the horizontal direction.
  • the horizontal component of the magnetic lines of force entering the coil can drive the coil to vibrate in the vertical direction (the direction perpendicular to the display surface of the display module) in the magnetic field. Therefore, on the one hand, when the direction of most of the lines of magnetic force entering the coil approaches the horizontal direction, the component of the lines of magnetic force entering the coil in the horizontal direction will increase. Therefore, the driving force of the coil to drive the display module to vibrate in the vertical direction can be increased. In this way, when the vibrator provided in the embodiment of the application is used to drive the display module to produce screen sound, the number of turns of the coil can be appropriately reduced under the condition that the driving force provided by the vibrator remains unchanged. The impedance of the coil.
  • the current on the coil will not decrease due to the increase in impedance, thereby effectively improving the problem of insufficient high-frequency volume emitted by the mobile terminal.
  • the number of turns of the coil is reduced, and the volume of the coil is also reduced, which is conducive to reducing the size of the vibrator.
  • the vibration amplitude of the coil in the horizontal direction can be reduced, and the shear force between the coil and the display module can be reduced.
  • the coil and the display module are bonded and fixed by the adhesive layer, the problem of degumming of the coil due to the above-mentioned shearing force during the vibration process can be avoided, which causes the reliability of the product to decrease.
  • the magnetizing direction of the third magnet is perpendicular to the display surface of the display module.
  • the first pole of the third magnet is close to the display module, and the second pole of the third magnet is far away from the display module. It can be made that outside the second magnet, the lines of magnetic force pass from the first pole of the second magnet through the coil, and then enter the second pole of the third magnet that is closest to the first pole of the second magnet.
  • the third magnet is arranged on the side of the coil away from the first magnet.
  • the third magnet and the coil are arranged side by side, and along the direction perpendicular to the display surface of the display module, on the side close to the middle frame, the coil protrudes first. magnet.
  • the surface of the coil close to the first magnet is not blocked by the first magnet, so that outside the second magnet, after the lines of magnetic force start from the first pole of the second magnet, the coil is close to the first magnet and is not covered by the first magnet.
  • the blocked part enters the coil.
  • the direction of most of the magnetic lines of force entering the coil is close to the horizontal direction.
  • the magnetizing direction of the third magnet is parallel to the display surface of the display module.
  • the second pole of the third magnet is close to the first magnet, and the first pole of the third magnet is away from the first magnet.
  • the lines of magnetic force pass from the first pole of the second magnet through the coil, and then enter the second pole of the third magnet that is closest to the first pole of the second magnet.
  • the direction of most of the magnetic lines of force entering the coil is close to the horizontal direction.
  • the vibrator further includes a magnetic conductive sheet.
  • the magnetic conductive sheet is arranged on the side surface where the first pole of the first magnet is located, and the magnetic conductive direction of the magnetic conductive sheet is parallel to the display surface of the display module.
  • the lines of magnetic force start from the first pole of the second magnet, enter the magnetic conductive sheet and transmit in the horizontal direction, and enter the coil. This can increase the number of magnetic lines of force in the coil that approach the horizontal direction.
  • the vibrator includes a plurality of third magnets distributed around the coil. Two adjacent third magnets are connected by an adhesive layer. In this way, the plurality of third magnets can be connected by the glue, and the firmness of the plurality of third magnets can be enhanced. And each independent third magnet can be processed more easily.
  • the cross section of the third magnet is fan-shaped.
  • the curvature of the surface of the third magnet near the coil matches the curvature of the outer surface of the coil.
  • the cross section is parallel to the display surface of the display module. In this way, it is beneficial to increase the component space inside the vibrator and reduce the phenomenon of dimensional interference between adjacent components.
  • the bonding between the third magnet and the coil can be made tighter.
  • the cross section of the third magnet is annular. Both the coil and the first magnet are located in the ring. The curvature of the surface of the third magnet near the coil matches the curvature of the outer surface of the coil.
  • the cross section is parallel to the display surface of the display module. The periphery of the first magnet can be surrounded by the third magnet, so as to enhance the strength of the magnetic field provided by the third magnet.
  • the vibrator further includes at least one fourth magnet.
  • the fourth magnet is connected with the middle frame.
  • the magnetization direction of the fourth magnet is parallel to the display surface of the display module and faces the vibrator. In this way, the strength of the magnetic field inside the vibrator can be further increased, and the number of magnetic lines of force entering the coil can be increased to achieve the purpose of increasing the driving force applied by the coil to the display module.
  • the vibrator includes a plurality of fourth magnets distributed around the second magnet. Two adjacent fourth magnets are connected by an adhesive layer. In this way, the plurality of fourth magnets can be connected by the glue, and the firmness of the plurality of fourth magnets can be enhanced. And each independent fourth magnet can be processed more easily.
  • the cross section of the second magnet is circular.
  • the cross section of the fourth magnet is fan-shaped.
  • the curvature of the surface of the fourth magnet near the second magnet matches the curvature of the surface of the second magnet near the fourth magnet.
  • the cross section is parallel to the display surface of the display module. In this way, the installation of the fourth magnet can be facilitated, and the probability of dimensional interference between components in the vibrator can be reduced.
  • the cross section of the second magnet is circular.
  • the cross section of the fourth magnet is annular.
  • the second magnet is located in the ring.
  • the curvature of the surface of the fourth magnet near the second magnet matches the curvature of the surface of the second magnet near the fourth magnet.
  • the cross section is parallel to the display surface of the display module.
  • the periphery of the second magnet can be surrounded by the fourth magnet, so as to enhance the strength of the magnetic field provided by the fourth magnet.
  • an opening is provided on the middle frame.
  • the mobile terminal also includes a stand. At least a part of the second magnet is located in the opening on the middle frame.
  • the bracket is arranged on the side surface of the middle frame away from the display module, and is connected with the middle frame. The second magnet passes through the opening and is arranged on the bracket.
  • the vibrator can be arranged on the bracket on the side of the middle frame away from the display module, so that part of the vibrator It is located in the accommodating cavity formed between the middle frame and the display module. This is beneficial to reduce the thickness of the mobile terminal.
  • the mobile terminal further includes a first magnetic isolation cover and a second magnetic isolation cover.
  • the first magnetic shield is connected with the back of the display module.
  • the first magnet, the third magnet and the coil are all located in the first magnetic isolation cover, and are all connected with the inner wall of the first magnetic isolation cover.
  • the first magnetic shield is used to carry the first magnet, the third magnet and the coil.
  • the second magnetic shield is connected with the middle frame.
  • the second magnet is located in the second magnetic isolation cover and connected with the inner wall of the second magnetic isolation cover.
  • the second magnetic shield is used to carry the second magnet.
  • first magnetic shield and the second magnetic shield may be made of magnetically conductive materials to reduce the diffusion of magnetic lines of force in the magnetic field formed by the first magnet, the second magnet, the coil, and the third magnet, and achieve the purpose of reducing the magnetic resistance.
  • the fourth magnet is located in the second magnetic shield and is connected to the inner wall of the second magnetic shield.
  • the fourth magnet may be arranged in the second magnetic isolation cover, and the second magnetic isolation cover can reduce the spread of magnetic lines of force in the magnetic field of the fourth magnet.
  • the mobile terminal further includes a supporting piece.
  • the upper surface of the supporting sheet is connected with the display module.
  • the lower surface of the supporting sheet is connected with the first magnetic shield.
  • the area of the upper surface of the support sheet is larger than that of the surface of the first magnetic shield near the support sheet.
  • the supporting sheet has a sheet-like structure, its contact area with the display module is relatively large. Therefore, by contacting the upper and lower surfaces of the support sheet with the display module and the vibrator respectively, the contact area between the vibrator and the display module can be increased, so that the vibrator provides the display module with The driving force can be applied to the display module more evenly.
  • the area of the deformation area of the display module can be enlarged, the efficiency of the vibrator driving the display module to vibrate can be increased, the power consumption can be reduced, and the sound effect of the screen can be improved.
  • FIG. 1a is a schematic structural diagram of a mobile terminal provided by an embodiment of this application.
  • FIG. 1b is a schematic diagram of a structure of the display module in FIG. 1a;
  • FIG. 1c is a schematic diagram of another structure of the display module in FIG. 1a;
  • FIG. 2 is a schematic structural diagram of a mobile terminal with a vibrator provided by an embodiment of the application
  • 3a is a schematic structural diagram of another mobile terminal with a vibrator provided by an embodiment of the application.
  • Fig. 3b is a schematic diagram of the structure of the coil and the first magnet in Fig. 3a;
  • FIG. 4 is a schematic structural diagram of another mobile terminal with a vibrator provided by an embodiment of the application.
  • Figure 5a is a schematic structural diagram of another mobile terminal with a vibrator provided by an embodiment of the application.
  • Fig. 5b is a schematic diagram of a magnetic field distribution of the vibrator in Fig. 5a;
  • Fig. 6a is a schematic structural diagram of another mobile terminal with a vibrator provided by an embodiment of the application.
  • Fig. 6b is another schematic diagram of the magnetic field distribution of the vibrator in Fig. 6a;
  • Fig. 6c is another schematic diagram of the magnetic field distribution of the vibrator in Fig. 6a;
  • Fig. 7a is a schematic diagram of a structure of the coil and the third magnet in Fig. 5a;
  • FIG. 7b is a schematic diagram of another structure of the coil and the third magnet in FIG. 5a;
  • Fig. 8 is a schematic diagram of a structure of the vibrator in Fig. 4;
  • Fig. 9a is a schematic diagram of a structure of the fourth magnet in Fig. 8.
  • FIG. 9b is a schematic diagram of another structure of the fourth magnet in FIG. 8;
  • FIG. 10 is a schematic structural diagram of another mobile terminal with a vibrator provided by an embodiment of the application.
  • Fig. 11 is a schematic diagram of a magnetic field distribution of the vibrator in Fig. 10;
  • Fig. 12a is another schematic diagram of the structure of the vibrator in Fig. 4;
  • Fig. 12b is a schematic diagram of a magnetic field distribution of the vibrator in Fig. 12a;
  • Fig. 12c is another schematic diagram of the structure of the vibrator in Fig. 4.
  • Fig. 12d is a schematic diagram of a magnetic field distribution of the vibrator in Fig. 12c;
  • Fig. 13a is another schematic diagram of the structure of the vibrator in Fig. 4;
  • Fig. 13b is a schematic diagram of a magnetic field distribution of the vibrator in Fig. 13a;
  • FIG. 14 is a schematic structural diagram of another mobile terminal with a vibrator provided by an embodiment of the application.
  • FIG. 15 is a schematic structural diagram of another mobile terminal with a vibrator provided by an embodiment of the application.
  • azimuth terms such as “upper”, “lower”, “left”, “right”, etc. may include but are not limited to the directions defined relative to the schematic placement of the components in the drawings. It should be understood that these directions sexual terms can be relative concepts, and they are used for relative description and clarification, and they can change accordingly according to the changes in the orientation of the parts in the drawings.
  • connection should be understood in a broad sense.
  • “connected” can be a fixed connection, a detachable connection, or a whole; it can be a direct connection, or Can be indirectly connected through an intermediary.
  • An embodiment of the present application provides a mobile terminal.
  • the mobile terminal includes mobile phones, tablet computers, smart watches and other electronic products capable of hand-held calls and displays.
  • the embodiments of the present application do not impose special restrictions on the specific form of the above-mentioned mobile terminal.
  • the mobile terminal is a mobile phone as shown in FIG. 1a.
  • the aforementioned mobile terminal 01 mainly includes, but is not limited to, a display module 10.
  • the above-mentioned display module 10 may include a display panel (DP).
  • the above-mentioned display screen 101 may be a liquid crystal display (LCD) screen.
  • the above-mentioned display module 10 further includes a backlight unit (BLU) 102 for providing a light source to the LCD.
  • the LCD screen can be a rigid display.
  • the above-mentioned display screen 101 may be an organic light emitting diode (OLED) display screen.
  • OLED organic light emitting diode
  • the OLED display screen can realize self-luminescence, so the above-mentioned BLU 102 does not need to be provided in the display module 10.
  • the OLED display screen may be a rigid display screen, or when the substrate of the OLED display screen is a flexible substrate, the above-mentioned OLED display screen may be a flexible display screen.
  • the above-mentioned mobile terminal 01 further includes a middle frame 11 and a housing 12 as shown in FIG. 1a.
  • the display module 10 and the housing 12 are respectively located on both sides of the middle frame 11.
  • the middle frame 11 includes a supporting board 111 parallel or approximately parallel to the display module 10, and a frame 110 arranged around the supporting board 111 once.
  • the surface of the carrying board 111 on the side close to the casing 12 is used for arranging internal components such as a battery, a printed circuit board (PCB), a camera (Camera), and an antenna.
  • the middle frame 11 on the side close to the display module 10 can be connected to the display module 10 through foam glue 112.
  • the above-mentioned mobile terminal 01 further includes at least one vibrator 20 as shown in FIG. 2. At least a part of the vibrator 20 is disposed in the above-mentioned receiving cavity 103. In a direction perpendicular to the display surface A of the display module 10 (ie, the Y direction in FIG. 2), the vibrator 20 is used to drive the display module 10 to vibrate up and down.
  • the structure of the vibrator 20 and the manner in which at least a part of the vibrator 20 is disposed in the accommodating cavity 103 will be described below with specific examples.
  • the aforementioned vibrator 20 may include a first magnet 201, a second magnet 202, a coil 200, and at least one third magnet 203 as shown in FIG. 3a.
  • the first magnet 201, the coil 200 and the third magnet 203 are all connected to the back B of the display module 10.
  • the first magnet 201 may be located in the closed area formed by the wire of the coil 200.
  • the second magnet 202 is connected to the carrier plate 111 of the middle frame 11.
  • the second magnet 202 and the first magnet 201 are positioned opposite to each other.
  • the mobile terminal 01 further includes a first magnetic shield 41 and a second magnetic shield. ⁇ 42.
  • the first magnetic shield 41 can be connected to the back surface B of the display module 10 through glue.
  • the first magnet 201, the coil 200, and the third magnet 203 are all located in the first magnetic shield 41, and are connected to the inner wall of the first magnetic shield 41 by means of glue bonding.
  • the first magnetic shield 41 can be U-shaped, so that the bottom surface (the surface facing the display module 10) and the side surface (the surface perpendicular to the display module 10) of the first magnet 201, the coil 200, and the third magnet 203 pack.
  • the first magnet 201, the coil 200, and the third magnet 203 may also be fixed by glue.
  • the second magnetic shield 42 may be connected to the middle frame 11 by glue.
  • the second magnet 202 is located in the second magnetic shield 42 and is connected to the inner wall of the second magnetic shield 42 by means of glue bonding.
  • the second magnetic shield 42 can also be U-shaped, so that the bottom surface (the surface facing the carrier plate 111 of the middle frame 11) and the side surface (the surface perpendicular to the display module 10) of the second magnet 202 can be wrapped.
  • first magnetic shield 41 and the second magnetic shield 42 are made of magnetically conductive materials to reduce the spread of magnetic lines of force in the magnetic field formed by the first magnet 201, the second magnet 202, the coil 200, and the third magnet 203.
  • the mobile terminal 01 further includes a bracket 30. At least a part of the second magnet 202 is located in the opening 31 on the middle frame 11.
  • the bracket 30 is disposed on a side surface of the middle frame 11 away from the display module 10, and can be connected to the middle frame 11 by means of glue layer or connecting members, such as screws and pins.
  • the middle frame 11 may be provided with an opening 31, and the second magnet 202 passes through the opening 31 and is arranged on the bracket 30 and is connected to the bracket 30.
  • the coil 200 is energized and the direction of the current flowing into the coil is alternately changed.
  • the magnetic field generated by the coil 200 can interact with the magnetic field generated by the second magnet 202, so that the coil 200 can interact with each other according to the direction of current flowing.
  • the second magnets 202 generate mutual attraction or repulsion forces. In this way, the coil 200 can drive the display module 10 to vibrate up and down in a direction perpendicular to the display surface A of the display module 10 (ie, the Y direction in FIG. 4).
  • the display module 10 When the coil 200 vibrates up and down in the Y direction, the display module 10 can be driven to vibrate up and down in the same direction. In this way, in the sound production system mainly composed of the vibrator 20 and the display module 10, the display module 10 acts as a diaphragm to push the air to produce sound during the vibration process, so as to achieve the purpose of sound on the screen. At this time, the above-mentioned sound system can realize the function of an earpiece or a loudspeaker to play the audio signal. Therefore, it is not necessary to punch holes and install a receiver on the front of the mobile terminal 01, so as to achieve the purpose of increasing the screen ratio of the mobile terminal 01.
  • the magnetizing directions of the second magnet 202 and the first magnet 201 are opposite, so that a repulsive force can be generated between the second magnet 202 and the first magnet 201, so that the coil 200 is easier to vibrate, and the inner part of the vibrator 20 is improved.
  • the strength of the magnetic field is improved.
  • any one of the magnets in the above embodiments of the present application may be a permanent magnet.
  • the magnet has a first pole, such as an N pole (or S pole) and a second pole, such as an S pole (or N pole). This application does not limit the arrangement of the first pole and the second pole of the magnet.
  • the magnetizing direction of the magnet is the direction in which the lines of magnetic force inside the magnet point from the S pole to the N pole.
  • the polarities of the first magnet 201 and the second magnet 202 need to be opposite.
  • the first pole (for example, the N pole) of the first magnet 201 faces downward (away from the display module 10)
  • the second pole for example, the S pole
  • the first pole (for example, the N pole) of the second magnet 202 faces upward
  • the second pole for example, the S pole
  • the vibrator 20 in order to further increase the driving force provided by the vibrator 20 to the display module 10, the vibrator 20 further includes a third magnet 203 as shown in FIG. 5a.
  • the third magnet 203 is located on the side of the coil 200 away from the first magnet 201.
  • the second pole (for example, the S pole) of the third magnet 203 is close to the first pole (for example, the N pole) of the first magnet 201 and the first pole (for example, the N pole) of the second magnet 202.
  • the magnetizing direction of the third magnet 203 is perpendicular to the display surface A of the display module 10.
  • the second pole (for example, the S pole) of the third magnet 203 faces downward (away from the display module 10), so it can be close to the first pole (for example, the N pole) of the first magnet 201 and the first pole (for example, the N pole) of the second magnet 202 N pole).
  • the first pole (for example, the N pole) of the third magnet 203 faces upward (close to the display module 10).
  • the magnetizing direction of the second magnet 202 is opposite to that of the first magnet 201. Therefore, as shown in FIG. N pole).
  • the second pole (for example, the S pole) of the third magnet 203 is close to the first pole (for example, the N pole) of the first magnet 201 and the first pole (for example, the N pole) of the second magnet 202. Therefore, the first pole (for example, the N pole) of the first magnet 201, the first pole (for example, the N pole) of the second magnet 202, and the second pole (for example, the S pole) of the third magnet 203 are close to each other.
  • the magnetic field lines generated by the magnet will go from the S pole to the N pole inside the magnet, and from the N pole to the nearest S pole outside the magnet, so that the magnetic field lines are closed.
  • the first pole (for example, the N pole) of the first magnet 201, the first pole (for example, the N pole) of the second magnet 202, and the second pole (for example, the S pole) of the third magnet 203 are close to each other, as shown in the figure
  • the lines of magnetic force (shown by the small black arrows in the figure) extend from the second pole (for example, the S pole) to the first pole (the N pole) of the second magnet 202.
  • the second pole (for example, the S pole) of the third magnet 203 is closer to the second pole (for example, the S pole) of the second magnet 202 than the second pole (for example, the S pole) of the second magnet 202.
  • One pole (for example, N pole) therefore, outside the second magnet 202, the lines of magnetic force pass from the first pole (for example, N pole) of the second magnet 202 to the second pole of the nearest third magnet 203 after passing through the coil 200 (For example, S pole).
  • the third magnet 203 is arranged on the side of the coil 200 away from the first magnet 201, and the third magnet 203 and the coil 200 are arranged side by side. Therefore, outside the second magnet 202, the lines of magnetic force starting from the first pole (for example, the N pole) of the second magnet 202 will approach the horizontal direction X (parallel to the horizontal plane A of the display module 10) and enter the coil 200. Then, the surface of the coil 200 close to the third magnet 203 passes through the coil 200 and enters the second pole (such as the S pole) of the third magnet 203 that is level with the coil 200.
  • the first pole for example, the N pole
  • the surface of the coil 200 close to the third magnet 203 passes through the coil 200 and enters the second pole (such as the S pole) of the third magnet 203 that is level with the coil 200.
  • the coil 200 protrudes from the first magnet 201. In this way, the surface (left side side) of the coil close to the first magnet 201 is not blocked by the first magnet 201.
  • the surface (left side) of 201 is not blocked by the first magnet 201, so outside the first magnet 201, the lines of magnetic force start from the first pole (for example, the N pole) of the first magnet 201 and approach the horizontal direction X (Parallel to the horizontal plane A of the display module 10)
  • the surface of the coil 200 close to the first magnet 201 and not blocked by the first magnet 201 enters the coil 200, and then passes through the surface of the coil 200 close to the third magnet 203 and enters
  • the second pole (for example, the S pole) of the third magnet 203 the coil 200 is horizontal.
  • the lines of magnetic force can pass through the coil 200 from the surface of the coil 200 close to the first magnet 201 and the surface of the coil 200 close to the third magnet 203. Therefore, the lines of magnetic force in the coil 200 can approach the horizontal direction X.
  • the above-mentioned vibrator 20 may further include a magnetic conductive sheet 300 as shown in FIG. 6a.
  • the magnetic conductive sheet 300 is arranged on the side surface where the first pole (for example, the N pole) of the first magnet 201 is located.
  • the magnetic conductive direction of the magnetic conductive sheet 300 is parallel to the display surface A (horizontal direction X) of the display module 10.
  • the lines of magnetic force extend from the second pole (for example, the S pole) to the first pole (the N pole) of the first magnet 201. Then, outside the first magnet 201, the lines of magnetic force (indicated by the small black arrow in the figure) start from the first pole (for example, the N pole) of the first magnet 201, and will tend to be guided by the magnetic conduction of the magnetic sheet 300. Close to the horizontal direction X (parallel to the horizontal plane A of the display module 10), the coil 200 enters the coil 200 from the surface close to the first magnet 201, and then passes through the surface of the coil 200 close to the third magnet 203, and enters the coil.
  • the second pole (for example, the S pole) of the third magnet 203 at a level of 200.
  • the lines of magnetic force can pass through the coil 200 from the surface of the coil 200 close to the first magnet 201 and the surface of the coil 200 close to the third magnet 203. Therefore, the lines of magnetic force in the coil 200 can approach the horizontal direction X.
  • the material constituting the above-mentioned magnetic conductive sheet 300 may be a magnetically conductive metal material.
  • the size of the magnetic sheet 300 in the X direction is much larger than the size in the thickness (ie along Y) direction, so that the magnetic direction of the magnetic sheet 300 can be parallel to the display surface A (horizontal direction X) of the display module 10 .
  • the magnetizing direction of the third magnet 203 that is, the first pole (for example, the N pole) and the second pole of the first magnet 201
  • the first pole (for example, the N pole) of the magnet 202 and the second pole (for example, the S pole) of the third magnet 203 are close to each other, which can forcibly stipulate the path and direction of the magnetic field lines in the space where the magnet is located.
  • the direction of most of the magnetic lines of force (black arrows in the figure) entering the coil 200 approaches the horizontal direction X.
  • the component of the magnetic line of force entering the coil 200 in the horizontal direction X can drive the coil 200 to vibrate in the vertical direction Y (the direction perpendicular to the display surface of the display module 10) in the magnetic field. Therefore, on the one hand, when the direction of most of the magnetic lines of force 200 entering the coil 200 approaches the horizontal direction X, the component of the magnetic lines of force entering the coil 200 in the horizontal direction X will increase. Therefore, the driving force of the coil 200 to drive the display module 10 to vibrate in the vertical direction Y can be increased. In this way, when the vibrator 20 provided in the embodiment of the present application is used to drive the display module 10 to produce screen sound, the number of turns of the coil 200 can be appropriately reduced under the condition that the driving force provided by the vibrator 20 remains unchanged.
  • the vibration amplitude of the coil 200 along the horizontal direction X can be reduced, and the shearing force between the coil 200 and the display module 10 can be reduced. Furthermore, when the coil 200 and the display module 10 are bonded and fixed by an adhesive layer, it is possible to avoid the problem of degumming of the coil 200 due to the above-mentioned shearing force during the vibration process, resulting in a decrease in product reliability.
  • the thickness (dimension along the X direction) of the third magnet 203 can be as small as possible, for example, about 0.5 mm or 1 mm.
  • the thickness of the third magnet 203 may not exceed half of the size of the first magnet 201 in the X direction.
  • the number of the third magnets 203 is not limited in this application.
  • a third magnet 203 may be provided in the vibrator 20.
  • the vibrator 20 may include a plurality of third magnets 203 distributed around the coil 200. Two adjacent third magnets 203 can be connected by an adhesive layer.
  • the cross section (XOZ plane) of the third magnet 203 is fan-shaped.
  • the curvature of the surface of the third magnet 203 close to the coil 200 coincides with the curvature of the outer surface of the coil 200 (that is, the surface close to the third magnet 203).
  • the bonding between the third magnet 203 and the coil 200 can be made closer.
  • the cross section (XOZ plane) of the third magnet 203 is annular. Both the coil 200 and the first magnet 201 are located in the ring. Similarly, in order to facilitate the installation of the third magnet 203, the curvature of the surface of the third magnet 203 close to the coil 200 matches the curvature of the outer surface of the coil 200.
  • cross section (XOZ plane) of the third magnet 203 is parallel to the display surface A of the display module 10.
  • the vibrator 20 may further include at least one fourth magnet 204 as shown in FIG. 8.
  • the fourth magnet 204 may be located in the second magnetic shield 42 and connected to the inner wall of the second magnetic shield 42 by means of glue bonding.
  • the fourth magnet 204 may also be bonded to the second magnet 202 by glue.
  • the magnetizing direction of the fourth magnet 204 is parallel to the display surface A of the display module 10 and faces the vibrator 20.
  • the S pole of the fourth magnet 204 is far away from the second magnet 202, and the N pole of the fourth magnet 204 is close to the second magnet 202.
  • the magnetic field lines are directed from the S pole of the fourth magnet 204 to the second magnet 202, that is, the magnetizing direction of the fourth magnet 204 (S pole to N pole) is directed into the vibrator 20.
  • the strength of the magnetic field inside the vibrator 20 can be further increased, and the number of magnetic lines of force entering the coil 200 in FIG. 6c can be increased to achieve the purpose of increasing the driving force applied by the coil 200 to the display module.
  • the thickness (dimension along the X direction) of the fourth magnet 204 can be as small as possible, for example, about 0.5 mm or 1 mm.
  • the thickness of the fourth magnet 204 may not exceed half of the size of the second magnet 202 in the X direction.
  • the number of the fourth magnets 204 is not limited in this application.
  • a fourth magnet 204 may be provided in the vibrator 20.
  • the vibrator 20 may include a plurality of fourth magnets 204 distributed around the second magnet 202. Two adjacent fourth magnets 204 may be connected by an adhesive layer.
  • the fourth magnet 204 In the case where the cross section of the second magnet 202 is circular, in order to facilitate the installation of the fourth magnet 204 and reduce the probability of dimensional interference between components in the vibrator 20, as shown in FIG. 9a, the fourth magnet 204
  • the cross section can be fan-shaped.
  • the curvature of the surface of the fourth magnet 204 close to the second magnet 202 matches the curvature of the surface of the second magnet 202 close to the fourth magnet 204.
  • the cross section (XOZ plane) of the fourth magnet 204 is annular.
  • the second magnet 202 is located in the ring.
  • the curvature of the surface of the fourth magnet 204 near the second magnet 202 matches the curvature of the surface of the second magnet 202 near the fourth magnet 204.
  • cross section (XOZ plane) of the fourth magnet 204 is parallel to the display surface A of the display module 10.
  • the above description is based on the example of the first pole of the magnet with the N pole and the second pole with the S pole.
  • the first pole of the magnet may be the S pole
  • the second pole of the magnet may be the N pole.
  • the magnetizing direction of the second magnet 202 and the first magnet 201 facing up.
  • the first pole (for example, the S pole) of the second magnet 202 faces upward, and the second pole (for example, the N pole) faces downward.
  • the magnetizing direction of the third magnet 203 is perpendicular to the display surface A of the display module 10.
  • the second pole (for example, the N pole) of the third magnet 203 faces downward, so it can be close to the first pole (for example, the S pole) of the first magnet 201 and the first pole (for example, the S pole) of the second magnet 202.
  • the first pole (for example, the S pole) of the third magnet 203 faces upward.
  • the first pole (for example, the S pole) of the first magnet 201, the first pole (for example, the S pole) of the second magnet 202, and the second pole (for example, the N pole) of the third magnet 203 are close to each other.
  • the lines of magnetic force shown by the small black arrows in the figure
  • the first pole (for example, the S pole) of the third magnet 203 is closer to the second pole (for example, the S pole) of the second magnet 202.
  • the lines of magnetic force start from the second pole (for example, the N pole) of the second magnet 202, and first enter the second pole (for example, the S) of the nearest third magnet 203. pole). Then, it passes through the coil 200 and enters the first pole (for example, the S pole) of the second magnet 202.
  • the lines of magnetic force start from the second pole (for example, the N pole) of the first magnet 201 and enter the first pole (for example, the S pole) of the third magnet 203.
  • the third magnet 203 and the coil 200 are arranged side by side. Therefore, the magnetic field lines start from the second pole (for example, the N pole) of the third magnet 203, and will approach the horizontal direction X (parallel to the horizontal plane A of the display module 10) under the magnetic permeability of the magnetic conductive sheet 300.
  • the coil 200 enters the coil 200 near the surface of the third magnet 203, and then passes through the coil 200 from the surface of the coil 200 near the first magnet 201, and enters the first pole (such as the S pole) of the second magnet 202 through the magnetic conductive sheet 300. ).
  • the third magnet 203 located outside the coil 200 in the vibrator 20, and by setting the magnetizing direction of the third magnet 203, that is, the first pole (for example, the S pole) of the first magnet 201 and the second magnet 202
  • the first pole (for example, the S pole) of the third magnet 203 and the second pole (for example, the N pole) of the third magnet 203 are close to each other, which can forcibly stipulate the path and direction of the magnetic field lines in the space where the magnet is located. Therefore, as shown in FIG. 11, the direction of most of the magnetic force lines 200 entering the coil 200 is close to the horizontal direction X.
  • the purpose of increasing the driving force of the coil 200 to drive the display module 10 to vibrate in the vertical direction Y and reducing the shear force between the coil 200 and the display module 10 is achieved.
  • the vibrator 20 includes a first magnet 201, a second magnet 202, a coil 200, and at least one third magnet 203.
  • the first magnet 201, the coil 200 and the third magnet 203 may be arranged in the first magnetic shield 41.
  • the third magnet 203 is arranged in the second magnetic shield 42.
  • the vibrator 20 may also include a fourth magnet 204 arranged in the second magnetic shield 42.
  • the difference from the first example is that, as shown in FIG. 12 a, the magnetizing direction of the third magnet 203 is parallel to the display surface A of the display module 10.
  • the first pole of the magnet is N pole and the second pole is S pole for description.
  • the first pole (for example, the N pole) of the first magnet 201 faces downward, and the second pole (for example, the S pole) faces upward.
  • the first pole (for example, the N pole) of the second magnet 202 faces upward, and the second pole (for example, the S pole) faces downward.
  • the first pole (for example, the N pole) of the first magnet 201, the first pole (for example, the N pole) of the second magnet 202, and the second pole (for example, the S pole) of the third magnet 203 are close to each other, and the third magnet
  • the first pole (for example, the N pole) of the third magnet 203 is far away from the first magnet 201, and the The two poles (for example, the S pole) are close to the first magnet 201.
  • the lines of magnetic force extend from the second pole (for example, the S pole) to the first pole (the N pole) of the second magnet 202.
  • the second pole (for example, the S pole) of the third magnet 203 is closer to the second pole (for example, the S pole) of the second magnet 202 than the second pole (for example, the S pole) of the second magnet 202.
  • One pole (for example, N pole) therefore, outside the second magnet 202, the lines of magnetic force start from the first pole (for example, N pole) of the second magnet 202 after passing through the coil 200, and then enter the nearest second magnet 203.
  • the pole (for example, the S pole) passes through the first pole (for example, the N pole) of the third magnet 203 and enters the second pole (for example, the S pole) of the second magnet 202.
  • the lines of magnetic force extend from the second pole (for example, the S pole) to the first pole (the N pole) of the first magnet 201.
  • the third magnet 203 is arranged on the side of the coil 200 away from the first magnet 201, the third magnet 203 and the coil 200 are arranged side by side, and the magnetizing direction of the third magnet 203 is the horizontal direction X (and the display mode Horizontal plane A of group 10 is parallel). Therefore, outside the second magnet 202, after the magnetic field lines start from the first pole (for example, the N pole) of the second magnet 202, they will approach the horizontal direction X (parallel to the horizontal plane A of the display module 10) and approach the coil 200.
  • the surface of the first magnet 201 enters the coil 200, and then the surface of the coil 200 close to the third magnet 203 passes through the coil 200 and enters the second pole (such as the S pole) of the third magnet 203 that is level with the coil 200.
  • the lines of magnetic force pass through the first pole (for example, the N pole) of the third magnet 203 and enter the second pole (for example, the S pole) of the first magnet 201.
  • the above-mentioned vibrator 20 may further include a magnetic conductive sheet 300 as shown in FIG. 12c.
  • the arrangement of the magnetic conductive sheet 300 is the same as described above.
  • the magnetic permeability direction of the magnetic conductive sheet 300 is the above-mentioned horizontal direction X (parallel to the horizontal plane A of the display module 10)
  • the first magnet 201 The magnetic field lines (shown by the small black arrow in the figure) starting from the first pole (such as the N pole) of the magnetic field (shown by the small black arrow in the figure) can basically enter the coil 200 in the horizontal direction X from the surface of the coil 200 close to the first magnet 201.
  • the coil 200 passes through the surface close to the third magnet 203 and enters the second pole (for example, the S pole) of the third magnet 203 that is level with the coil 200.
  • the lines of magnetic force pass through the first pole (for example, the N pole) of the third magnet 203 and enter the second pole (for example, the S pole) of the first magnet 201.
  • the number of horizontal magnetic lines of force in the coil 200 can be increased.
  • the purpose of increasing the driving force of the coil 200 to drive the display module 10 to vibrate in the vertical direction Y and reducing the shear force between the coil 200 and the display module 10 is achieved.
  • the above description is based on the example of the first pole of the magnet with the N pole and the second pole with the S pole.
  • the first pole of the magnet may be the S pole
  • the second pole of the magnet may be the N pole.
  • the magnetizing direction of the third magnet 203 is parallel to the display surface A of the display module 10. As shown in FIG. 13a, the first pole (for example, the S pole) of the third magnet 203 is far away from the first magnet 201, and the second pole (for example, the N pole) of the third magnet 203 is close to the first magnet 201.
  • the magnetic field lines extend from the first pole (for example, the S pole) to the first pole of the second magnet 202.
  • Two poles N pole.
  • the first pole (for example, the S pole) of the third magnet 203 is closer to the second pole (for example, the S pole) of the second magnet 202. Therefore, outside the second magnet 202, the lines of magnetic force start from the second pole (for example, the N pole) of the second magnet 202, and first enter the second pole (for example, the S) of the nearest third magnet 203. pole). Then, it passes through the coil 200 and enters the first pole (for example, the S pole) of the second magnet 202.
  • the lines of magnetic force extend from the first pole (such as the S pole) of the third magnet 203 to the second pole (N pole) in the horizontal direction X (parallel to the horizontal plane A of the display module 10). It can be seen from the above that the third magnet 203 and the coil 200 are arranged side by side. Therefore, outside the third magnet 203, the lines of magnetic force starting from the second pole (for example, the N pole) of the third magnet 203 will approach the horizontal direction X (parallel to the horizontal plane A of the display module 10) and the coil 200 will approach the second pole. The surface of the three magnets 203 enters the coil 200, and then the surface of the coil 200 close to the first magnet 201 passes through the coil 200.
  • the lines of magnetic force enter the first pole (for example, the S pole) of the first magnet 201 again. Then, outside the first magnet 201, the lines of magnetic force pass through the second pole (for example, the N pole) of the first magnet 201 and enter the first pole (for example, the S pole) of the third magnet 203.
  • the path and direction of the magnetic field lines in the space where the magnet is located can be forcibly specified.
  • the direction of most of the magnetic lines of force 200 entering the coil 200 is close to the horizontal direction X.
  • FIG. 13b illustrates an example in which the magnetic conductive sheet 300 is not included in the vibrator 20.
  • the vibrator 20 may further include a magnetic conductive sheet 300 located on the side of the first magnet 201 close to the second magnet 202.
  • the magnetic conductive direction of the magnetic conductive sheet 300 is parallel to the horizontal plane A of the display module 10. Therefore, under the magnetic conduction of the magnetic sheet 300, the magnetic field lines starting from the second pole (for example, the N pole) of the third magnet 203 can enter the coil 200 from the surface of the coil 200 close to the third magnet 203, and then approach the coil 200.
  • the surface of the first magnet 201 passes through, passes through the magnetic sheet 300, and then enters the first pole (for example, the S pole) of the first magnet 201.
  • the foregoing mobile terminal may further include a supporting sheet 50.
  • the upper surface of the supporting sheet 50 is connected with the display module 10.
  • the lower surface of the supporting piece 50 is connected with the first magnetic shield 41.
  • the area of the upper surface of the supporting piece 50 is larger than that of the surface of the first magnetic shield 41 close to the supporting piece 50.
  • the supporting sheet 50 since the supporting sheet 50 has a sheet-like structure, its contact area with the display module 10 is relatively large. Therefore, by contacting the upper and lower surfaces of the support sheet 50 with the display module 10 and the vibrator 20, respectively, the contact area between the vibrator 20 and the display module 10 can be increased, so that during the vibration of the vibrator 20, The driving force provided to the display module 10 can be applied to the display module 10 more evenly.
  • the deformation area of the display module 10 can be enlarged, the efficiency of the vibrator 20 to drive the display module 10 to vibrate, the power consumption is reduced, and the sound effect of the screen can be improved.
  • the material constituting the support sheet 50 may be a metal material or other materials with a relatively hard texture.
  • the above description is based on an example in which at least a part of the vibrator 20 is disposed in the accommodating cavity 103 between the middle frame 11 and the display module 10.
  • the entire vibrator 20 can be arranged in the receiving cavity Within 103.
  • the structure of the vibrator 20 is the same as that described above, and will not be repeated here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Telephone Set Structure (AREA)

Abstract

本申请实施例提供一种移动终端，涉及屏幕发声技术领域，用于改善移动终端在实现屏幕发声时，在高频段存在音量不足的问题。该移动终端中振动器的至少一部分设置于容纳腔内。振动器包括第一磁铁、第二磁铁、线圈以及至少一个第三磁铁。第一磁铁、线圈以及第三磁铁均与显示模组的背面相连接。第一磁铁位于线圈的导线绕成的闭合区域中。第三磁铁位于线圈远离第一磁铁的一侧。第二磁铁与中框相连接，且第二磁铁与第一磁铁的位置相对设置。第一磁铁的第一极、第二磁铁的第一极以及第三磁铁的第二极相互靠近，以使得至少一部分磁力线由线圈靠近第一磁铁的表面和靠近第三磁铁的表面穿过线圈。

Description

一种移动终端
本申请要求于2020年03月16日提交国家知识产权局、申请号为202010181703.4、申请名称为“一种移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及屏幕发声技术领域，尤其涉及一种移动终端。
背景技术
用户对移动终端，例如手机的屏占比的要求越来越高。为了增加手机的整机屏占比，可以在手机的显示屏背面设置振动器。该振动器向显示屏提供的驱动力，能够驱动显示屏振动。在此情况下，显示屏可以作为振膜在振动的过程中，推动空气产生声音，以实现屏幕发声。这样无需在手机的正面打孔和安装听筒，从而可以达到增加手机屏占比的目的。
该振动器中设置有用于产生上述驱动力的线圈。为了满足上述驱动力的要求，线圈需要具备较大的匝数。然而，线圈的匝数与其阻抗成正比，并且在发声频率为高频率时，线圈的阻抗会随着发声频率的增加而进一步增大。这样一来，屏幕发声在高频段，线圈上的电流会因为阻抗的增大而减小，从而使得振动器向屏幕提供的驱动力不足，导致手机发出高频音量不足。
发明内容
本申请实施例提供一种移动终端，用于改善移动终端在实现屏幕发声时，在高频段存在音量不足的问题。
为达到上述目的，本申请采用如下技术方案：
本申请实施例的一方面，提供一种移动终端包括中框、显示模组以及至少一个振动器。其中，显示模组与中框相连接，且与中框之间形成容纳腔。振动器的至少一部分设置于容纳腔内。振动器包括第一磁铁、第二磁铁、线圈以及至少一个第三磁铁。在沿垂直于显示模组显示面的方向上，振动器用于驱动显示模组上、下振动。其中，第一磁铁、线圈以及第三磁铁均与显示模组的背面相连接。第一磁铁位于线圈的导线绕成的闭合区域中。第三磁铁位于线圈远离第一磁铁的一侧。第二磁铁与中框相连接，且第二磁铁与第一磁铁的位置相对设置。第一磁铁的第一极、第二磁铁的第一极以及第三磁铁的第二极相互靠近，以使得至少一部分磁力线由线圈靠近第一磁铁的表面和线圈靠近第三磁铁的表面穿过该线圈。这样一来，通过在振动器中增加位于线圈外侧的第三磁铁，并通过设置第三磁铁的充磁方向，即第一磁铁的第一极、第二磁铁的第一极以及第三磁铁的第二极相互靠近，可以强制规定了磁铁所在空间的磁力线路径和方向。并且，由于至少一部分磁力线可以由线圈靠近第一磁铁的表面和线圈靠近第三磁铁的表面穿过该线圈，从而使得进入至线圈的大部分磁力线的方向趋近于水平方向。进入线圈中的磁感线沿水平方向的分量能够驱动线圈在磁场中沿竖直方向(垂直于显 示模组的显示面的方向)的振动。因此，一方面，当进入至线圈的大部分磁力线的方向趋近于水平方向时，进入线圈中的磁感线沿水平方向的分量会增加。从而能够增大线圈沿竖直方向驱动显示模组进行振动的驱动力。这样一来，采用本申请实施例提供的振动器驱动显示模组进行屏幕发声时，在该振动器提供的驱动力不变的情况下，可以适当的减小线圈的匝数，以减小该线圈的阻抗。从而当屏幕发声在高频段时，线圈上的电流不会因为阻抗的增大而减小，从而有效改善移动终端发出高频音量不足的问题。此外，线圈的匝数减小了，该线圈的体积也会减小，从而有利于减小振动器的尺寸。另一方面，由于进入线圈中的磁感线沿水平方向的分量增加，进入线圈中的磁感线沿竖直方向的分量减小。从而能够减小线圈沿水平方向的振动幅度，达到减小线圈与显示模组之间的剪切力。进而在线圈与显示模组通过胶层粘接固定的情况下，可以避免线圈在振动过程中由于上述剪切力出现脱胶，导致产品可靠性下降的问题。
可选的，第三磁铁的充磁方向与显示模组的显示面垂直。第三磁铁的第一极靠近显示模组，第三磁铁的第二极远离显示模组。可以使得在第二磁铁的外部，磁力线由第二磁铁的第一极经过线圈后，进入到距离第二磁铁第一极最近的第三磁铁的第二极。此外，第三磁铁设置于线圈远离第一磁铁的一侧，该第三磁铁与线圈并排设置，并且沿垂直显示模组显示面的方向上，在靠近中框的一侧，线圈凸出第一磁铁。这样一来，线圈靠近第一磁铁的表面未被第一磁铁遮挡，从而在该第二磁铁外部，磁力线由第二磁铁的第一极出发后，由线圈靠近第一磁铁且未被第一磁铁遮挡的部分进入线圈。从而使得进入至线圈的大部分磁力线的方向趋近于水平方向。
可选的，第三磁铁的充磁方向与显示模组的显示面平行。第三磁铁的第二极靠近第一磁铁，第三磁铁的第一极远离第一磁铁。同理，在第二磁铁的外部，磁力线由第二磁铁的第一极经过线圈后，进入到距离第二磁铁第一极最近的第三磁铁的第二极。从而使得进入至线圈的大部分磁力线的方向趋近于水平方向。
可选的，振动器还包括导磁片。导磁片设置于第一磁铁的第一极所在的一侧表面上，导磁片的导磁方向与显示模组的显示面平行。在导磁片的导磁作用下，在该第二磁铁外部，磁力线由第二磁铁的第一极出发后，进入导磁片并沿水平方向传输，并进入线圈内。从而可以增加线圈内，趋近水平方向的磁力线的数量。
可选的，振动器包括多个分布于线圈周边的第三磁铁。相邻两个第三磁铁之间通过粘接层相连接。这样一来，通过胶体可以将多个第三磁铁相连接，可以增强多个第三磁铁的牢固性。且每个独立的第三磁铁可以更容易加工。
可选的，第三磁铁的横截面为扇形。第三磁铁靠近线圈一侧表面的弧度与线圈外表面的弧度相吻合。其中，横截面与显示模组的显示面相平行。这样一来，有利于提高振动器内部的部件空间，减小相邻部件之间出现尺寸干扰的现象。此外，通过胶体将第三磁铁和线圈粘接时，能够使得第三磁铁和线圈之间粘接的更加紧密。
可选的，第三磁铁的横截面为环形。线圈和第一磁铁均位于环形内。第三磁铁靠近线圈一侧表面的弧度与线圈外表面的弧度相吻合。其中，横截面与显示模组的显示面相平行。可以使得第一磁铁的周边均被第三磁铁包围，达到增强第三磁铁提供的磁场的强度。
可选的，振动器还包括至少一个第四磁铁。第四磁铁与中框相连接。第四磁铁的 充磁方向与显示模组的显示面平行，且朝向振动器内。这样一来，可以进一步增加振动器内部的磁场强度，进而能够增加进入线圈的磁力线的数量，达到提高线圈向显示模组施加的驱动力的目的。
可选的，振动器包括多个分布于第二磁铁周边的第四磁铁。相邻两个第四磁铁之间通过粘接层相连接。这样一来，通过胶体可以将多个第四磁铁相连接，可以增强多个第四磁铁的牢固性。且每个独立的第四磁铁可以更容易加工。
可选的，第二磁铁的横截面为圆形。第四磁铁的横截面为扇形。第四磁铁靠近第二磁铁一侧表面的弧度与第二磁铁靠近第四磁铁一侧表面的弧度相吻合。其中，横截面与显示模组的显示面相平行。这样一来，可以便于第四磁铁的安装，并降低振动器中部件之间尺寸干扰的几率。
可选的，第二磁铁的横截面为圆形。第四磁铁的横截面为环形。第二磁铁位于环形内。第四磁铁靠近第二磁铁一侧表面的弧度与第二磁铁靠近第四磁铁一侧表面的弧度相吻合。其中，横截面与显示模组的显示面相平行。可以使得第二磁铁的周边均被第四磁铁包围，达到增强第四磁铁提供的磁场的强度。
可选的，中框上设置有开孔。移动终端还包括支架。第二磁铁的至少一部分位于中框上的开孔内。支架设置于中框远离显示模组的一侧表面，且与中框相连接。第二磁铁穿过开孔，设置于支架上。这样一来，当中框的承载板与显示模组的背面之间的间隙H的尺寸有限时，可以通过将振动器设置于位于中框远离显示模组的一侧的支架，使得振动器的一部分位于中框与显示模组之间形成的容纳腔内。从而有利于减小移动终端的厚度。
可选的，移动终端还包括第一隔磁罩和第二隔磁罩。第一隔磁罩与显示模组的背面相连接。第一磁铁、第三磁铁以及线圈均位于第一隔磁罩内，且均与第一隔磁罩的内壁相连接。该第一隔磁罩用于承载第一磁铁、第三磁铁以及线圈。第二隔磁罩与中框相连接。第二磁铁位于第二隔磁罩内，且与第二隔磁罩的内壁相连接。该第二隔磁罩用于承载第二磁铁。此外，上述第一隔磁罩和第二隔磁罩可以采用导磁材料构成，以减少第一磁铁、第二磁铁、线圈以及第三磁铁构成的磁场中磁力线的扩散，达到降低磁阻的目的。
可选的，在振动器包括第四磁铁的情况下，第四磁铁位于第二隔磁罩内，且与第二隔磁罩的内壁相连接。该第四磁铁可以设置于第二隔磁罩内，且该第二隔磁罩能够减少第四磁铁的磁场中磁力线的扩散。
可选的，移动终端还包括支撑片。支撑片的上表面与显示模组相连接。支撑片的下表面与第一隔磁罩相连接。其中，支撑片上表面的面积大于，第一隔磁罩靠近支撑片一侧表面的面积。这样一来，由于支撑片为片状结构，其与显示模组的接触面积较大。因此，通过将上述支撑片的上、下表面分别与显示模组和上述振动器相接触，可以提高振动器与显示模组的接触面积，使得上述振动器振动过程中，向显示模组提供的驱动力能够更加均匀的施加至显示模组。此外，通过支撑片，还可以扩大显示模组形变区域面积，增加振动器驱动显示模组振动的效率，降低功耗，提升屏幕发声的效果。
附图说明
图1a为本申请实施例提供的一种移动终端的结构示意图；
图1b为图1a中显示模组的一种结构示意图；
图1c为图1a中显示模组的另一种结构示意图；
图2为本申请实施例提供的一种具有振动器的移动终端的结构示意图；
图3a为本申请实施例提供的另一种具有振动器的移动终端的结构示意图；
图3b为图3a中线圈和第一磁铁的结构示意图；
图4为本申请实施例提供的另一种具有振动器的移动终端的结构示意图；
图5a为本申请实施例提供的另一种具有振动器的移动终端的结构示意图；
图5b为图5a中振动器的一种磁场分布示意图；
图6a为本申请实施例提供的另一种具有振动器的移动终端的结构示意图；
图6b为图6a中振动器的另一种磁场分布示意图；
图6c为图6a中振动器的另一种磁场分布示意图；
图7a为图5a中线圈与第三磁铁的一种结构示意图；
图7b为图5a中线圈与第三磁铁的另一种结构示意图；
图8为图4中振动器的一种结构示意图；
图9a为图8中第四磁铁的一种结构示意图；
图9b为图8中第四磁铁的另一种结构示意图；
图10为本申请实施例提供的另一种具有振动器的移动终端的结构示意图；
图11为图10中振动器的一种磁场分布示意图；
图12a为图4中振动器的另一种结构示意图；
图12b为图12a中振动器的一种磁场分布示意图；
图12c为图4中振动器的另一种结构示意图；
图12d为图12c中振动器的一种磁场分布示意图；
图13a为图4中振动器的另一种结构示意图；
图13b为图13a中振动器的一种磁场分布示意图；
图14为本申请实施例提供的另一种具有振动器的移动终端的结构示意图；
图15为本申请实施例提供的另一种具有振动器的移动终端的结构示意图。
附图标记：
01-移动终端；10-显示模组；11-中框；110-边框；111-承载板；12-壳体；101-显示屏；102-BLU；103-容纳腔；20-振动器；200-线圈；201-第一磁铁；202-第二磁铁；203-第三磁铁；30-支架；31-开孔；41-第一隔磁罩；42-第二隔磁罩；204-第四磁铁；50-支撑片；300-导磁片。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
以下，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非 另有说明，“多个”的含义是两个或两个以上。
此外，本申请中，“上”、“下”、“左”、“右”等方位术语可以包括但不限于相对附图中的部件示意置放的方位来定义的，应当理解到，这些方向性术语可以是相对的概念，它们用于相对于的描述和澄清，其可以根据附图中部件附图所放置的方位的变化而相应地发生变化。
在本申请中，除非另有明确的规定和限定，术语“连接”应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连。
本申请实施例提供一种的移动终端。该移动终端包括手机、平板电脑、智能手表等能够进行手持通话和显示的电子产品。本申请实施例对上述移动终端的具体形式不做特殊限制。以下为了方便说明，是以移动终端为如图1a所示的手机为例进行的说明。
上述移动终端01，如图1a所示，主要包括但不限于显示模组10。其中，上述显示模组10，可以包括显示屏(display panel，DP)。在本申请的一些实施例中，如图1b所示，上述显示屏101可以为液晶显示(liquid crystal display，LCD)屏。在此情况下，如图1b所示，上述显示模组10还包括用于向该LCD提供光源的背光模组(back light unit，BLU)102。LCD屏可以为硬性显示屏。
或者，在本申请的另一些实施例中，如图1c所示，上述显示屏101可以为有机发光二极管(organic light emitting diode，OLED)显示屏。该OLED显示屏能够实现自发光，因此显示模组10中无需设置上述BLU102。OLED显示屏可以为硬性显示屏，或者当该OLED显示屏的衬底为柔性衬底时，上述OLED显示屏可以为柔性显示屏。
此外，上述移动终端01还包括如图1a所示的中框11和壳体12。显示模组10和壳体12分别位于中框11的两侧。中框11包括与显示模组10平行或近似平行的承载板111，以及绕承载板111一周设置的边框110。其中，承载板111靠近壳体12一侧的表面用于设置电池、印刷电路板(printed circuit board，PCB)、摄像头(Camera)、天线等内部元件。
如图2所示，中框11在靠近显示模组10的一侧可以通过泡棉胶112与显示模组10相连接。该中框11的承载板111与显示模组10的背面B(与显示模组10的显示面A相对的表面)之间具有间隙H，从而使得显示模组10和中框11之间形成有容纳腔103。为了实现屏幕发声，上述移动终端01还包括至少一个如图2所示的振动器20。该振动器20的至少一部分设置于上述容纳腔103。在沿垂直于显示模组10显示面A的方向上(即图2中的Y方向)，振动器20用于驱动显示模组10上、下振动。
以下通过具体的示例，对振动器20的结构，以及将振动器20的至少一部分设置于容纳腔103的方式进行举例说明。
示例一
本示例中，当中框11的承载板111与显示模组10的背面B之间的间隙H的尺寸有限时，如图3a所示，可以将振动器20的至少一部分设置于容纳腔103内。
上述振动器20可以包括如图3a所示的第一磁铁201、第二磁铁202、线圈200以及至少一个第三磁铁203。第一磁铁201、线圈200以及第三磁铁203均与显示模组10的背面B相连接。如图3b所示，第一磁铁201可以位于线圈200的导线绕成的闭 合区域中。此外，如图3a所示，第二磁铁202与中框11的承载板111相连接。并且，第二磁铁202与第一磁铁201的位置相对设置。
此外，为了将第一磁铁201、线圈200以及第三磁铁203与显示模组10的背面B相连接，如图4所示，上述移动终端01还包括第一隔磁罩41和第二隔磁罩42。该第一隔磁罩41可以通过胶体与显示模组10的背面B相连接。第一磁铁201、线圈200以及第三磁铁203均位于第一隔磁罩41内，且均与第一隔磁罩41的内壁通过胶体粘接的方式相连接。第一隔磁罩41可以为U型，从而可以对第一磁铁201、线圈200以及第三磁铁203的底面(朝向显示模组10的表面)以及侧面(与显示模组10垂直的表面)进行包裹。为了提高振动器20的可靠性，第一磁铁201、线圈200以及第三磁铁203之间也可以通过胶体进行固定。
第二隔磁罩42可以通过胶体与中框11相连接。上述第二磁铁202位于第二隔磁罩42内，且与第二隔磁罩42的内壁通过胶体粘接的方式相连接。同理，第二隔磁罩42也可以U型，从而可以对第二磁铁202的底面(朝向中框11的承载板111的表面)以及侧面(与显示模组10垂直的表面)进行包裹。
此外，上述第一隔磁罩41和第二隔磁罩42采用导磁材料构成，以减少第一磁铁201、第二磁铁202、线圈200以及第三磁铁203构成的磁场中磁力线的扩散，达到降低磁阻的目的。
为了将振动器20的至少一部分设置于容纳腔103内，如图4所示，移动终端01还包括支架30。第二磁铁202的至少一部分位于中框11上的开孔31内。该支架30设置于中框11远离显示模组10的一侧表面，且可以通过胶层粘贴的方式，或者通过连接件，例如螺钉、销钉等与中框11相连接。此外，中框11上可以设置有开孔31，第二磁铁202穿过上述开孔31，并设置于支架30上，且与该支架30相连接。
在此情况下，向线圈200通电，并交替改变通入线圈中的电流的方向，线圈200产生的磁场可以与第二磁铁202产生的磁场相互作用，使得线圈200能够根据流过电流的方向与第二磁铁202之间产生相互吸引或者排斥的力。这样一来，可以使得线圈200沿垂直于显示模组10显示面A的方向上(即图4中的Y方向)，驱动显示模组10上、下振动。
在线圈200沿Y方向上、下振动的过程中，可以带动显示模组10沿相同的方向上、下振动。这样一来，在主要由振动器20和显示模组10构成的发声系统中，显示模组10作为振膜在振动过程中，推动空气发声，达到屏幕发声的目的。此时，上述发声系统能够实现听筒或喇叭的作用，以对音频信号进行播放。从而无需在移动终端01的正面打孔和安装听筒，达到增加移动终端01屏占比的目的。
此外，第二磁铁202与第一磁铁201的充磁方向相反，使得第二磁铁202与第一磁铁201之间可以产生相斥的作用力，以线圈200更容易振动，并提高振动器20内磁场的强度。
需要说明的是，上述本申请实施例中的任意一种磁铁可以为永磁铁。该磁铁具有第一极，例如N极(或者S极)和第二极，例如S极(或者N极)。本申请对磁铁的第一极和第二极的设置方式不做限定。磁铁的充磁方向为，在该磁铁内部磁力线由S极指向N极的方向。
以下为了方便说明，在本申请的一些实施例中，以图5a所示的磁铁的第一极为N极，第二极为S极为例进行说明。
基于此，为了使得第二磁铁202与第一磁铁201的充磁方向相反，该第一磁铁201和第二磁铁202的极性需要相反。示例的，如图5a所示，第一磁铁201的第一极(例如N极)朝下(远离显示模组10)，第二极(例如S极)朝上(靠近显示模组10)。第二磁铁202的第一极(例如N极)朝上，第二极(例如S极)朝下。
此外，本申请提供的实施例中，为了进一步提高振动器20向显示模组10提供的驱动力，上述振动器20还包括如图5a所示的第三磁铁203。第三磁铁203位于线圈200远离第一磁铁201的一侧。第三磁铁203的第二极(例如S极)靠近该第一磁铁201的第一极(例如N极)第二磁铁202的第一极(例如N极)。
例如，本示例中如图5a所示，第三磁铁203的充磁方向与显示模组10的显示面A垂直。第三磁铁203的第二极(例如S极)朝下(远离显示模组10)，因此能够靠近第一磁铁201的第一极(例如N极)以及第二磁铁202的第一极(例如N极)。此外，第三磁铁203的第一极(例如N极)朝上(靠近显示模组10)。
由上述可知，第二磁铁202与第一磁铁201的充磁方向相反，因此如图5a所示，第一磁铁201的第一极(例如N极)靠近第二磁铁202的第一极(例如N极)。此外，由于第三磁铁203的第二极(例如S极)靠近该第一磁铁201的第一极(例如N极)以及第二磁铁202的第一极(例如N极)。所以，该第一磁铁201的第一极(例如N极)、第二磁铁202的第一极(例如N极)以及第三磁铁203的第二极(例如S极)相互靠近。
磁铁产生的磁力线在磁铁内部会从S极到N极，在磁铁外部会从N极到最近的S极，从而使得磁力线闭合。在第一磁铁201的第一极(例如N极)、第二磁铁202的第一极(例如N极)以及第三磁铁203的第二极(例如S极)相互靠近的情况下，如图5b所示，在第二磁铁202内部，磁力线(图中黑色小箭头所示)由该第二磁铁202的第二极(例如S极)到第一极(N极)。此外，在第二磁铁202的外部，由于第三磁铁203的第二极(例如S极)相对于第二磁铁202的第二极(例如S极)而言，更靠近第二磁铁202的第一极(例如N极)，因此，在该第二磁铁202外部，磁力线由第二磁铁202的第一极(例如N极)经过线圈200后，进入到最近的第三磁铁203的第二极(例如S极)。
此外，由上述可知，第三磁铁203设置于线圈200远离第一磁铁201的一侧，该第三磁铁203与线圈200并排设置。因此，在该第二磁铁202外部，磁力线由第二磁铁202的第一极(例如N极)出发后，会趋近于水平方向X(与显示模组10的水平面A平行)进入线圈200，而后由线圈200靠近第三磁铁203的表面穿出线圈200，并进入至于该线圈200水平的第三磁铁203的第二极(例如S极)。
此外，在本申请的一些实施例中，如图5a所示，沿垂直显示模组10显示面A的方向(Y方向)上，在靠近中框11的一侧，线圈200凸出第一磁铁201。这样一来，该线圈靠近第一磁铁201的表面(左侧侧面)未被第一磁铁201遮挡。
基于此，同理，如图5b所示第一磁铁201内部，磁力线由该第一磁铁201的第二极(例如S极)到第一极(N极)，然后，由于线圈靠近第一磁铁201的表面(左侧 侧面)未被第一磁铁201遮挡，因此在该第一磁铁201外部，磁力线由第一磁铁201的第一极(例如N极)出发后，会趋近于水平方向X(与显示模组10的水平面A平行)由线圈200靠近第一磁铁201且未被第一磁铁201遮挡的表面进入线圈200，而后由该线圈200靠近第三磁铁203的表面穿出，并进入至于该线圈200水平的第三磁铁203的第二极(例如S极)。在此情况下，由于磁力线可以由线圈200靠近第一磁铁201的表面和线圈200靠近第三磁铁203的表面穿过上述线圈200。因此，线圈200内的磁力线可以趋近于水平方向X。
或者，在本申请的另一些实施例中，上述振动器20如图6a所示，还可以包括导磁片300。该导磁片300设置于第一磁铁201的第一极(例如N极)所在的一侧表面上。该导磁片300的导磁方向与显示模组10的显示面A(水平方向X)平行。
在此情况下，如图6b所示，第一磁铁201内部，磁力线由该第一磁铁201的第二极(例如S极)到第一极(N极)。然后，在该第一磁铁201外部，磁力线(图中黑色小箭头所示)由第一磁铁201的第一极(例如N极)出发后，在导磁片300的导磁作用下，会趋近于水平方向X(与显示模组10的水平面A平行)由线圈200靠近第一磁铁201的表面进入线圈200，而后由该线圈200靠近第三磁铁203的表面穿出，并进入至于该线圈200水平的第三磁铁203的第二极(例如S极)。在此情况下，由于磁力线可以由线圈200靠近第一磁铁201的表面和线圈200靠近第三磁铁203的表面穿过上述线圈200。因此，线圈200内的磁力线可以趋近于水平方向X。
需要说明的是，构成上述导磁片300的材料可以为导磁的金属材料。且该导磁片300沿X方向的尺寸远大于其厚度(即沿Y)方向的尺寸，从而可以使得导磁片300的导磁方向与显示模组10的显示面A(水平方向X)平行。
这样一来，通过在振动器20中增加位于线圈200外侧的第三磁铁203，并通过设置第三磁铁203的充磁方向，即第一磁铁201的第一极(例如N极)、第二磁铁202的第一极(例如N极)以及第三磁铁203的第二极(例如S极)相互靠近，可以强制规定了磁铁所在空间的磁力线路径和方向。从而如图6c所示使得进入至线圈200的大部分磁力线(图中黑色箭头)的方向趋近于水平方向X。
进入线圈200中的磁感线沿水平方向X的分量能够驱动线圈200在磁场中沿竖直方向Y(垂直于显示模组10的显示面的方向)的振动。因此，一方面，当进入至线圈200的大部分磁力线200的方向趋近于水平方向X时，进入线圈200中的磁感线沿水平方向X的分量会增加。从而能够增大线圈200沿竖直方向Y驱动显示模组10进行振动的驱动力。这样一来，采用本申请实施例提供的振动器20驱动显示模组10进行屏幕发声时，在该振动器20提供的驱动力不变的情况下，可以适当的减小线圈200的匝数，以减小该线圈200的阻抗。从而当屏幕发声在高频段时，线圈上的电流不会因为阻抗的增大而减小，从而有效改善移动终端01发出高频音量不足的问题。
另一方面，由于进入线圈200中的磁感线沿水平方向X的分量增加，进入线圈200中的磁感线沿竖直方向Y的分量减小。从而能够减小线圈200沿水平方向X的振动幅度，达到减小线圈200与显示模组10之间的剪切力。进而在线圈200与显示模组10通过胶层粘接固定的情况下，可以避免线圈200在振动过程中由于上述剪切力出现脱胶，导致产品可靠性下降的问题。
在制作工艺允许的情况下，上述第三磁铁203的厚度(沿X方向的尺寸)可以越小越好，例如在0.5mm或1mm左右。此外，为了不影响第一磁铁201与第二磁铁202之间的作用力，上述第三磁铁203的厚度可以不超过第一磁铁201沿X方向的尺寸的一半。
需要说明的是，本申请对第三磁铁203的设置数量不做限定。例如在一些实施例中，可以在振动器20中设置一个第三磁铁203。或者如图7a所示，在本申请的一些实施例中，振动器20可以包括多个分布于线圈200周边的第三磁铁203。相邻两个第三磁铁203之间可以通过粘接层相连接。
基于此，为了便于第三磁铁203的安装，如图7a所示，第三磁铁203的横截面(XOZ平面)为扇形。第三磁铁203靠近线圈200一侧表面的弧度与线圈200外表面(即靠近第三磁铁203的表面)的弧度相吻合。这样一来，有利于提高振动器20内部的部件空间，减小相邻部件之间出现尺寸干扰的现象。此外，通过胶体将第三磁铁203和线圈200粘接时，能够使得第三磁铁203和线圈200之间粘接的更加紧密。
或者，在本申请的另一些实施例中，如图7b所示，第三磁铁203的横截面(XOZ平面)为环形。线圈200和第一磁铁201均位于该环形内。同理，为了便于第三磁铁203安装，该第三磁铁203靠近线圈200一侧表面的弧度与线圈200外表面的弧度相吻合。
需要说明的是，上述第三磁铁203的横截面(XOZ平面)与显示模组10的显示面A平行。
此外，振动器20还可以包括如图8所示的至少一个第四磁铁204。在振动器20包括第二隔磁罩42的情况下，上述第四磁铁204可以位于第二隔磁罩42内，且与第二隔磁罩42的内壁通过胶体粘接的方式相连接。此外，为了进一步提高振动器20的可靠性，上述第四磁铁204还可以通过胶体与第二磁铁202相粘接。
该第四磁铁204的充磁方向与显示模组10的显示面A平行，且朝向振动器20内。示例的，该第四磁铁204的S极远离第二磁铁202，第四磁铁204的N极靠近第二磁铁202。在此情况下，在第四磁铁204内部，磁力线由第四磁铁204的S极指向第二磁铁202，即第四磁铁204的充磁方向(S极指向N极)朝向振动器20内。这样一来，可以进一步增加振动器20内部的磁场强度，进而能够增加图6c中进入线圈200的磁力线的数量，达到提高线圈200向显示模组施加的驱动力的目的。
在制作工艺允许的情况下，上述第四磁铁204的厚度(沿X方向的尺寸)可以越小越好，例如在0.5mm或1mm左右。此外，为了不影响第一磁铁201与第二磁铁202之间的作用力，上述第四磁铁204的厚度可以不超过第二磁铁202沿X方向的尺寸的一半。
需要说明的是，本申请对第四磁铁204的设置数量不做限定。例如在一些实施例中，可以在振动器20中设置一个第四磁铁204。或者如图9a所示，在本申请的一些实施例中，振动器20可以包括多个分布于第二磁铁202周边的第四磁铁204。相邻两个第四磁铁204之间可以通过粘接层相连接。
在第二磁铁202的横截面为圆形的情况下，为了便于第四磁铁204的安装，并降低振动器20中，部件之间尺寸干扰的几率，如图9a所示，第四磁铁204的横截面可 以为扇形。该第四磁铁204靠近第二磁铁202一侧表面的弧度与第二磁铁202靠近第四磁铁204一侧表面的弧度相吻合。
或者，在本申请的另一些实施例中，如图9b所示，第四磁铁204的横截面(XOZ平面)为环形。第二磁铁202位于该环形内。同理，为了便于第四磁铁204安装，该第四磁铁204靠近第二磁铁202一侧表面的弧度与第二磁铁202靠近第四磁铁204一侧表面的弧度相吻合。
需要说明的是，上述第四磁铁204的横截面(XOZ平面)与显示模组10的显示面A平行。
上述是以磁铁的第一极为N极，第二极为S极为例进行说明，在本示例的另一些实施例中，磁铁的第一极可以为S极，第二极可以为N极。
基于此，为了使得第二磁铁202与第一磁铁201的充磁方向相反，示例的，如图10所示，第一磁铁201的第一极(例如S极)朝下，第二极(例如N极)朝上。第二磁铁202的第一极(例如S极)朝上，第二极(例如N极)朝下。此外，第三磁铁203的充磁方向与显示模组10的显示面A垂直。第三磁铁203的第二极(例如N极)朝下，因此能够靠近第一磁铁201的第一极(例如S极)以及第二磁铁202的第一极(例如S极)。此外，第三磁铁203的第一极(例如S极)朝上。
同理可得，在第一磁铁201的第一极(例如S极)、第二磁铁202的第一极(例如S极)以及第三磁铁203的第二极(例如N极)相互靠近的情况下，如图11所示，在第二磁铁202内部，磁力线(图中黑色小箭头所示)由该第二磁铁202的第一极(例如S极)到第二极(N极)。此外，在第二磁铁202外部，由于第三磁铁203的第一极(例如S极)相对于第二磁铁202的第一极(例如S极)而言，更靠近第二磁铁202的第二极(例如N极)，因此，在该第二磁铁202外部，磁力线由第二磁铁202的第二极(例如N极)出发，先进入到最近的第三磁铁203的第二极(例如S极)。然后，再经过线圈200进入到第二磁铁202的第一极(例如S极)。
此外，在第一磁铁201的外部，磁力线由第一磁铁201的第二极(例如N极)出发，进入至第三磁铁203的第一极(例如S极)。该第三磁铁203与线圈200并排设置。因此，磁力线再由第三磁铁203的第二极(例如N极)出发，在导磁片300的导磁作用下会趋近于水平方向X(与显示模组10的水平面A平行)由该线圈200靠近第三磁铁203的表面进入线圈200，而后再由线圈200靠近第一磁铁201的表面穿出线圈200，并通过导磁片300进入至第二磁铁202的第一极(例如S极)。
因此，通过在振动器20中增加位于线圈200外侧的第三磁铁203，并通过设置第三磁铁203的充磁方向，即第一磁铁201的第一极(例如S极)、第二磁铁202的第一极(例如S极)以及第三磁铁203的第二极(例如N极)相互靠近，可以强制规定了磁铁所在空间的磁力线路径和方向。从而如图11所示使得进入至线圈200的大部分磁力线200的方向趋近于水平方向X。达到增大线圈200沿竖直方向Y驱动显示模组10进行振动的驱动力，并减小线圈200与显示模组10之间的剪切力的目的。
示例二
本示例与示例一相同，如图3a所示，可以将振动器20的至少一部分设置于容纳腔103内。振动器20包括第一磁铁201、第二磁铁202、线圈200以及至少一个第三 磁铁203。第一磁铁201、线圈200以及第三磁铁203可以设置于第一隔磁罩41内。第三磁铁203设置于第二隔磁罩42内。此外，该振动器20还可以包括设置于第二隔磁罩42内的第四磁铁204。
与示例一的不同之处在于，如图12a所示，第三磁铁203的充磁方向与显示模组10的显示面A平行。
以下为了方便说明，在本申请的一些实施例中，以图12a所示的结构为例，磁铁的第一极为N极，第二极为S极为例进行说明。基于此，为了使得第二磁铁202与第一磁铁201的充磁方向相反，第一磁铁201的第一极(例如N极)朝下，第二极(例如S极)朝上。第二磁铁202的第一极(例如N极)朝上，第二极(例如S极)朝下。
在该第一磁铁201的第一极(例如N极)、第二磁铁202的第一极(例如N极)以及第三磁铁203的第二极(例如S极)相互靠近，且第三磁铁203的充磁方向与显示模组10的显示面A平行的情况下，如图12a所示，第三磁铁203的第一极(例如N极)远离第一磁铁201，第三磁铁203的第二极(例如S极)靠近所述第一磁铁201。
基于此，如图12b所示，在第二磁铁202内部，磁力线(图中黑色小箭头所示)由该第二磁铁202的第二极(例如S极)到第一极(N极)。此外，在第二磁铁202的外部，由于第三磁铁203的第二极(例如S极)相对于第二磁铁202的第二极(例如S极)而言，更靠近第二磁铁202的第一极(例如N极)，因此，在该第二磁铁202外部，磁力线由第二磁铁202的第一极(例如N极)出发经过线圈200后，进入到最近的第三磁铁203的第二极(例如S极)，再由第三磁铁203的第一极(例如N极)穿出并进入到第二磁铁202的第二极(例如S极)。
此外，第一磁铁201内部，磁力线由该第一磁铁201的第二极(例如S极)到第一极(N极)。由上述可知，第三磁铁203设置于线圈200远离第一磁铁201的一侧，该第三磁铁203与线圈200并排设置，且该第三磁铁203的充磁方向为水平方向X(与显示模组10的水平面A平行)。因此，在该第二磁铁202外部，磁力线由第二磁铁202的第一极(例如N极)出发后，会趋近于水平方向X(与显示模组10的水平面A平行)由线圈200靠近第一磁铁201的表面进入线圈200，而后由线圈200靠近第三磁铁203的表面穿出该线圈200，并进入至于该线圈200水平的第三磁铁203的第二极(例如S极)。接下来，磁力线由第三磁铁203的第一极(例如N极)穿出并进入第一磁铁201的第二极(例如S极)。
或者，在本申请的另一些实施例中，上述振动器20还可以包括如图12c所示的导磁片300。该导磁片300的设置方式同上所述。如图12d所示，由于导磁片300的导磁方向为上述水平方向X(与显示模组10的水平面A平行)，因此在该导磁片300的导磁作用下，由第一磁铁201的第一极(例如N极)出发的磁力线(图中黑色小箭头所示)在进入导磁片300后，基本都可以处于水平方向X由线圈200靠近第一磁铁201的表面进入线圈200，而后由线圈200靠近第三磁铁203的表面穿出，并进入至与该线圈200水平的第三磁铁203的第二极(例如S极)。接下来，磁力线由第三磁铁203的第一极(例如N极)穿出并进入第一磁铁201的第二极(例如S极)。这样一来，可以使得线圈200内的水平方向的磁力线的数量更多。达到增大线圈200沿竖直方向Y驱动显示模组10进行振动的驱动力，并减小线圈200与显示模组10之间的剪 切力的目的。
上述是以磁铁的第一极为N极，第二极为S极为例进行说明，在本示例的另一些实施例中，磁铁的第一极可以为S极，第二极可以为N极。
基于此，为了使得第二磁铁202与第一磁铁201的充磁方向相反，示例的，如图13a所示，第一磁铁201的第一极(例如S极)朝下，第二极(例如N极)朝上。第二磁铁202的第一极(例如S极)朝上，第二极(例如N极)朝下。此外，第三磁铁203的充磁方向与显示模组10的显示面A平行。如图13a所示，第三磁铁203的第一极(例如S极)远离第一磁铁201，第三磁铁203的第二极(例如N极)靠近第一磁铁201。
同理可得，在此情况下，如图13b所示，在第二磁铁202内部，磁力线(图中黑色小箭头所示)由该第二磁铁202的第一极(例如S极)到第二极(N极)。此外，在第二磁铁202外部，由于第三磁铁203的第一极(例如S极)相对于第二磁铁202的第一极(例如S极)而言，更靠近第二磁铁202的第二极(例如N极)，因此，在该第二磁铁202外部，磁力线由第二磁铁202的第二极(例如N极)出发，先进入到最近的第三磁铁203的第二极(例如S极)。然后，再经过线圈200进入到第二磁铁202的第一极(例如S极)。
由于，第三磁铁203内部，磁力线由该第三磁铁203的第一极(例如S极)沿水平方向X(与显示模组10的水平面A平行)到第二极(N极)。由上述可知，该第三磁铁203与线圈200并排设置。因此，在该第三磁铁203外部，磁力线由第三磁铁203的第二极(例如N极)出发后会趋近于水平方向X(与显示模组10的水平面A平行)由线圈200靠近第三磁铁203的表面进入线圈200，而后由线圈200靠近第一磁铁201的表面穿出线圈200。接下来，磁力线再进入至第一磁铁201的第一极(例如S极)。然后，在第一磁铁201的外部，磁力线由第一磁铁201的第二极(例如N极)穿出并进入第三磁铁203的第一极(例如S极)。
同理，通过在振动器20中增加位于线圈200外侧的第三磁铁203，并通过设置第三磁铁203的充磁方向，可以强制规定了磁铁所在空间的磁力线路径和方向。从而如图13b所示使得进入至线圈200的大部分磁力线200的方向趋近于水平方向X。
需要说明的是，本示例中，第四磁铁204的设置方式同上所述，此处不再赘述。此外，图13b是以振动器20中未包括导磁片300为例进行的说明。在本申请的另一些实施例中，该振动器20还可以包括位于第一磁铁201靠近第二磁铁202一侧的导磁片300。该导磁片300的导磁方向与显示模组10的水平面A平行。因此在该导磁片300的导磁作用下，由第三磁铁203的第二极(例如N极)出发的磁力线可以从线圈200靠近第三磁铁203的表面进入线圈200，再由线圈200靠近第一磁铁201的表面穿出，并通过导磁片300后再进入至于该第一磁铁201的第一极(例如S极)。
对于上述任意一种示例而言，如图14所示，上述移动终端还可以包括支撑片50。支撑片50的上表面与显示模组10相连接。支撑片50的下表面与第一隔磁罩41相连接。该支撑片50上表面的面积大于，第一隔磁罩41靠近支撑片50一侧表面的面积。
这样一来，由于支撑片50为片状结构，其与显示模组10的接触面积较大。因此，通过将上述支撑片50的上、下表面分别与显示模组10和上述振动器20相接触，可以 提高振动器20与显示模组10的接触面积，使得上述振动器20振动过程中，向显示模组10提供的驱动力能够更加均匀的施加至显示模组10。此外，通过支撑片50，还可以扩大显示模组10形变区域面积，增加振动器20驱动显示模组10振动的效率，降低功耗，提升屏幕发声的效果。
需要说明的是，构成上述支撑片50的材料可以为金属材料，或者其他质地较硬的材料。
上述是以振动器20的至少一部分设置于中框11与显示模组10之间的容纳腔103为例进行的说明。在本申请的另一些实施例中，如图15所示，当中框11的承载板111与显示模组10的背面B之间的间隙H足够大时，可以将整个振动器20设置于容纳腔103内。该振动器20的结构同上所述，此处不再赘述。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (15)

  1. 一种移动终端，其特征在于，包括：
    中框；
    显示模组，与所述中框相连接，且与所述中框之间形成容纳腔；
    至少一个振动器，其至少一部分设置于所述容纳腔内；在沿垂直于所述显示模组显示面的方向上，所述振动器用于驱动所述显示模组上、下振动；
    其中，所述振动器包括第一磁铁、第二磁铁、线圈以及至少一个第三磁铁；
    所述第一磁铁、所述线圈以及所述第三磁铁均与所述显示模组的背面相连接；所述第一磁铁位于所述线圈的导线绕成的闭合区域中；所述第三磁铁位于所述线圈远离所述第一磁铁的一侧；所述第二磁铁与所述中框相连接，且所述第二磁铁与所述第一磁铁的位置相对设置；所述第一磁铁的第一极、所述第二磁铁的第一极以及所述第三磁铁的第二极相互靠近，以使得至少一部分磁力线由所述线圈靠近所述第一磁铁的表面和靠近所述第三磁铁的表面，穿过所述线圈。
  2. 根据权利要求1所述的移动终端，其特征在于，所述第三磁铁的充磁方向与所述显示模组的显示面垂直；所述第三磁铁的第一极靠近所述显示模组，所述第三磁铁的第二极远离所述显示模组；
    沿垂直所述显示模组显示面的方向上，在靠近所述中框的一侧，所述线圈凸出所述第一磁铁。
  3. 根据权利要求1所述的移动终端，其特征在于，所述第三磁铁的充磁方向与所述显示模组的显示面平行；
    所述第三磁铁的第二极靠近所述第一磁铁，所述第三磁铁的第一极远离所述第一磁铁。
  4. 根据权利要求2或3所述的移动终端，其特征在于，所述振动器还包括导磁片；所述导磁片设置于所述第一磁铁的第一极所在的一侧表面上，所述导磁片的导磁方向与所述显示模组的显示面平行。
  5. 根据权利要求1所述的移动终端，其特征在于，所述振动器包括多个分布于所述线圈周边的所述第三磁铁；相邻两个所述第三磁铁之间通过粘接层相连接。
  6. 根据权利要求5所述的移动终端，其特征在于，所述第三磁铁的横截面为扇形；所述第三磁铁靠近所述线圈一侧表面的弧度与所述线圈外表面的弧度相吻合；
    其中，所述横截面与所述显示模组的显示面相平行。
  7. 根据权利要求1所述的移动终端，其特征在于，所述第三磁铁的横截面为环形；所述线圈和所述第一磁铁均位于所述环形内；所述第三磁铁靠近所述线圈一侧表面的弧度与所述线圈外表面的弧度相吻合；
    其中，所述横截面与所述显示模组的显示面相平行。
  8. 根据权利要求1所述的移动终端，其特征在于，所述振动器还包括至少一个第四磁铁；
    所述第四磁铁与所述中框相连接；所述第四磁铁的充磁方向与所述显示模组的显示面平行，且朝向所述振动器内。
  9. 根据权利要求8所述的移动终端，其特征在于，所述振动器包括多个分布于所 述第二磁铁周边的所述第四磁铁；相邻两个所述第四磁铁之间通过粘接层相连接。
  10. 根据权利要求9所述的移动终端，其特征在于，所述第二磁铁的横截面为圆形；所述第四磁铁的横截面为扇形；所述第四磁铁靠近所述第二磁铁一侧表面的弧度与所述第二磁铁靠近所述第四磁铁一侧表面的弧度相吻合；
    其中，所述横截面与所述显示模组的显示面相平行。
  11. 根据权利要求8所述的移动终端，其特征在于，所述第二磁铁的横截面为圆形；所述第四磁铁的横截面为环形；所述第二磁铁位于所述环形内；所述第四磁铁靠近所述第二磁铁一侧表面的弧度与所述第二磁铁靠近所述第四磁铁一侧表面的弧度相吻合；
    其中，所述横截面与所述显示模组的显示面相平行。
  12. 根据权利要求1-11任一项所述的移动终端，其特征在于，所述中框上设置有开孔；
    所述移动终端还包括支架；所述第二磁铁的至少一部分位于所述中框上的开孔内；
    所述支架设置于所述中框远离所述显示模组的一侧表面，且与所述中框相连接；
    所述第二磁铁穿过所述开孔，设置于所述支架上。
  13. 根据权利要求1-11任一项所述的移动终端，其特征在于，所述移动终端还包括：
    第一隔磁罩，与所述显示模组的背面相连接；所述第一磁铁、所述第三磁铁以及所述线圈均位于所述第一隔磁罩内，且均与所述第一隔磁罩的内壁相连接；
    第二隔磁罩，与所述中框相连接；所述第二磁铁位于所述第二隔磁罩内，且与所述第二隔磁罩的内壁相连接。
  14. 根据权利要求13所述的移动终端，其特征在于，在所述振动器包括第四磁铁的情况下，所述第四磁铁位于所述第二隔磁罩内，且与所述第二隔磁罩的内壁相连接。
  15. 根据权利要求14所述的移动终端，其特征在于，所述移动终端还包括支撑片；
    所述支撑片的上表面与所述显示模组相连接；所述支撑片的下表面与所述第一隔磁罩相连接；
    其中，所述支撑片上表面的面积大于，所述第一隔磁罩靠近所述支撑片一侧表面的面积。
PCT/CN2021/080487 2020-03-16 2021-03-12 一种移动终端 WO2021185173A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21772355.0A EP4089987A4 (en) 2020-03-16 2021-03-12 Mobile terminal
US17/802,419 US20230079983A1 (en) 2020-03-16 2021-03-12 Mobile terminal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010181703.4 2020-03-16
CN202010181703.4A CN113411418B (zh) 2020-03-16 2020-03-16 一种移动终端

Publications (1)

Publication Number Publication Date
WO2021185173A1 true WO2021185173A1 (zh) 2021-09-23

Family

ID=77676421

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/080487 WO2021185173A1 (zh) 2020-03-16 2021-03-12 一种移动终端

Country Status (4)

Country Link
US (1) US20230079983A1 (zh)
EP (1) EP4089987A4 (zh)
CN (1) CN113411418B (zh)
WO (1) WO2021185173A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180084347A1 (en) * 2013-10-30 2018-03-22 Kyocera Corporation Sound generator and sound generation system
CN209057357U (zh) * 2018-12-24 2019-07-02 歌尔科技有限公司 屏幕振动发声装置和电子产品
CN110381425A (zh) * 2019-07-01 2019-10-25 联想(北京)有限公司 一种电子设备
CN110572749A (zh) * 2018-11-16 2019-12-13 华为技术有限公司 一种移动终端
CN210093431U (zh) * 2019-06-26 2020-02-18 瑞声科技(新加坡)有限公司 移动终端

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8199960B2 (en) * 2007-10-11 2012-06-12 Sony Mobile Communications Ab Integrated speaker and display
CN202663535U (zh) * 2012-05-17 2013-01-09 瑞声光电科技(常州)有限公司 屏幕发声器
KR102663406B1 (ko) * 2016-04-04 2024-05-14 엘지디스플레이 주식회사 패널 진동형 음향 발생 액츄에이터 및 그를 포함하는 양면 표시 장치
KR102648129B1 (ko) * 2017-10-25 2024-03-18 피에스 오디오 디자인 오와이 트랜스듀서 장치
KR102356795B1 (ko) * 2017-10-31 2022-01-27 엘지디스플레이 주식회사 표시장치
CN209767592U (zh) * 2019-06-03 2019-12-10 共达电声股份有限公司 手机
WO2021000208A1 (zh) * 2019-07-01 2021-01-07 瑞声声学科技(深圳)有限公司 发声器件及电子设备
CN210041904U (zh) * 2019-09-17 2020-02-07 维沃移动通信有限公司 屏幕激励器及移动终端

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180084347A1 (en) * 2013-10-30 2018-03-22 Kyocera Corporation Sound generator and sound generation system
CN110572749A (zh) * 2018-11-16 2019-12-13 华为技术有限公司 一种移动终端
CN209057357U (zh) * 2018-12-24 2019-07-02 歌尔科技有限公司 屏幕振动发声装置和电子产品
CN210093431U (zh) * 2019-06-26 2020-02-18 瑞声科技(新加坡)有限公司 移动终端
CN110381425A (zh) * 2019-07-01 2019-10-25 联想(北京)有限公司 一种电子设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4089987A4

Also Published As

Publication number Publication date
US20230079983A1 (en) 2023-03-16
EP4089987A4 (en) 2023-06-28
CN113411418B (zh) 2022-07-12
CN113411418A (zh) 2021-09-17
EP4089987A1 (en) 2022-11-16

Similar Documents

Publication Publication Date Title
EP1271998B1 (en) Speaker system, mobile terminal device, and electronic device
CN114554368B (zh) 发声装置和电子设备
KR102356795B1 (ko) 표시장치
CN110572749B (zh) 一种移动终端
JP7208389B2 (ja) モバイル端末
US8705788B2 (en) Speaker and method for fabricating same
CN215453262U (zh) 电子设备
US20210006877A1 (en) Screen Sounding Device
WO2021042877A1 (zh) 移动终端
CN112911029B (zh) 一种显示终端
WO2021047300A1 (zh) 一种显示终端
US20120308070A1 (en) Slim type speaker and magnetic circuit therefor
WO2021185173A1 (zh) 一种移动终端
WO2021208772A1 (zh) 一种电子设备
CN111554725B (zh) 显示基板组件和显示装置
CN201557254U (zh) 压电振动发声器
KR20190100832A (ko) 하이브리드 액추에이터 및 이를 구비하는 멀티 미디어 장치
CN220711600U (zh) 声音驱动模组、显示设备及显示装置
CN117528352A (zh) 扬声器及电子设备
JP2004328531A (ja) 平面スピーカ及びそれを用いた電子機器
KR20210085207A (ko) 표시장치
KR20210085206A (ko) 표시장치
JP2005012360A (ja) 平面スピーカ及びそれを用いた電子機器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21772355

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021772355

Country of ref document: EP

Effective date: 20220812

NENP Non-entry into the national phase

Ref country code: DE