WO2020192457A1 - 一种屏幕发声设备 - Google Patents

一种屏幕发声设备 Download PDF

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Publication number
WO2020192457A1
WO2020192457A1 PCT/CN2020/079386 CN2020079386W WO2020192457A1 WO 2020192457 A1 WO2020192457 A1 WO 2020192457A1 CN 2020079386 W CN2020079386 W CN 2020079386W WO 2020192457 A1 WO2020192457 A1 WO 2020192457A1
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WO
WIPO (PCT)
Prior art keywords
screen
vibrator
area
middle frame
hard substance
Prior art date
Application number
PCT/CN2020/079386
Other languages
English (en)
French (fr)
Inventor
黄波
孙宇飞
查鹏
饶明生
李英明
叶千峰
秦仁轩
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 EP20779202.9A priority Critical patent/EP3920554B1/en
Publication of WO2020192457A1 publication Critical patent/WO2020192457A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • 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
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/05—Aspects relating to the positioning and way or means of mounting of exciters to resonant bending wave panels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/07—Loudspeakers using bending wave resonance and pistonic motion to generate sound
    • 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 field of electronic devices, and more specifically, to a screen sounding device.
  • the prior art Based on the design requirements of a full-screen mobile phone and a non-porous appearance, the prior art provides a screen sound technology that uses the vibration of the screen to generate sound to replace the traditional technology of turning on a handset to generate sound on a mobile phone.
  • the screen sound technology uses the vibration of a vibrator installed in the mobile phone to drive the screen to vibrate to generate sound waves and transmit them to the human ear.
  • the vibrator is attached to the middle frame of the mobile phone, and the vibrator drives the screen to vibrate by driving the middle frame, and the vibration effect is poor.
  • the present application provides a screen sound generating device, which can effectively improve the vibration effect of the screen by placing a hard substance between the screen and the vibrator.
  • a screen sounding device in a first aspect, includes:
  • the hard substance is arranged between the screen and the vibrator, the vibrator is attached to the screen through the hard substance, and the vibrator drives the screen perpendicular to the screen through the hard substance.
  • the direction of the surface of the screen vibrates, the Young's modulus of the hard substance is greater than a preset value, and the projection area of the hard substance on the surface of the screen is larger than the projection of the vibrator on the surface of the screen And smaller than the area of the surface of the screen.
  • the vibration displacement can be increased and reduced Energy loss and reduced vibration of the middle frame and back cover can improve the vibration effect; and, because the vibrator is attached to the bottom of the screen through a hard material with a certain Young's modulus and area, on the one hand, it can be more difficult to use. Support the screen well.
  • the vibrator when the vibrator vibrates the screen through a hard material, the vibration area of the screen can be increased by the hard material, so that most of the screen is vibrated as much as possible to produce a better vibration effect , Especially for screen sound-producing devices with flexible screens, this design has better applicability; on the other hand, the vibrator will generate heat during vibration. If the heating part of the vibrator (for example, the part with the coil) is close to the screen On the other hand, the hard material placed between the screen and the vibrator can slow down the damage of the screen due to the heat generated by the vibrator.
  • the heating part of the vibrator for example, the part with the coil
  • the screen sound generating device further includes a middle frame arranged below the screen, the middle frame is provided with a first hole or a first groove, and the first hole or the first groove accommodates the ⁇ Vibrator.
  • the screen sounding device provided by the embodiment of the present application has a groove or hole (for example, the first groove or the first hole) that can accommodate the vibrator in the middle frame, and uses the groove or hole in the thickness direction of the device.
  • the space compensation vibrator takes up the space in the thickness direction of the device, which can effectively reduce the size of the device in the thickness direction.
  • the hard substance in the thickness direction of the screen, by making a gap between the hard substance and the middle frame, the hard substance can be made as little as possible in the process of vibrating up and down along the thickness direction of the screen. Frame, reduce the noise caused by constant contact with the middle frame to improve the vibration effect.
  • the middle frame is further provided with a second groove, and the second groove contains the hard substance.
  • a groove for example, a second groove for accommodating a hard substance is provided in the middle frame, and the space of the groove in the thickness direction of the device is used to compensate the device occupied by the hard substance.
  • the space in the thickness direction can effectively reduce the size of the device in the thickness direction.
  • the middle frame is provided with the first hole, and the vibrator extends out of the first hole on a side of the middle frame away from the screen, and,
  • the screen sounding device further includes a supporting device fixedly connected to the side of the middle frame away from the screen, and the surface of the vibrator extending out of the first hole is in contact with the surface of the supporting device.
  • the middle frame when the middle frame is provided with a hole (for example, the first hole) for accommodating the vibrator, by providing a supporting device fixedly connected to the middle frame on the middle frame, it can be compared. Support the vibrator well.
  • a hole for example, the first hole
  • the vibrator includes a first magnetic device and a second magnetic device distributed along the thickness direction of the screen, a gap exists between the first magnetic device and the second magnetic device, and the first magnetic device A magnetic device is attached to the hard substance, the second magnetic device is attached to the supporting device, and the polarity of the first magnetic device or the second magnetic device changes according to the first frequency, so that the The first magnetic device and the second magnetic device satisfy the characteristics of attraction of same sex or repulsion of opposite sex according to the first frequency.
  • the screen sound device fixes the second magnetic device through the supporting device, and uses the characteristics of homosexual attraction and opposite sex repulsion to make all energy push the first magnetic device to vibrate up and down as much as possible to drive the screen through a hard substance Vibration, in this way, can effectively improve the vibration effect and improve the listening effect.
  • the projected area of the hard substance on the surface of the screen is less than or equal to half of the area of the surface of the screen.
  • the screen sound device provided by the embodiment of the present application, by making the projected area of the hard substance on the surface of the screen less than or equal to half of the area of the surface of the screen, for those with a groove for accommodating the hard substance in the middle frame In this case, on the basis of reducing equipment, the supporting effect of the middle frame on the screen and other devices can be maintained as much as possible.
  • the peripheral area of the lower surface of the screen is attached to the surface of the middle frame through an adhesive layer
  • the adhesive layer includes a first area and a second area
  • the first area is close to the hard substance
  • the second area is at least part of the area of the adhesive layer excluding the first area
  • the size of the first area in the first direction is smaller than the size of the second area in the first direction
  • the first direction is a direction perpendicular to the inner side of the adhesive layer from the outer side of the adhesive layer, and the first direction is parallel to the surface of the screen.
  • the screen sounding device provided by the embodiments of the present application, by setting the size of the viscous layer close to the hard material in the direction perpendicular to the inner side of the viscous layer from the outside of the viscous layer to be narrow, the middle frame and the middle frame can be reduced to a certain extent.
  • the binding force of the screen reduces the constraints on hard materials to increase the vibration displacement of the hard materials, thereby improving the vibration effect of the screen and improving the listening effect.
  • the screen sound generating device further includes a back cover provided on a side of the middle frame away from the screen, and the peripheral area of the surface of the back cover facing the middle frame is attached to the surface of the middle frame.
  • the middle frame is provided with a first hole for accommodating the vibrator, and the vibrator extends out of the first hole on the side of the middle frame away from the screen, and,
  • the distance between the partial area starting from the end of the back cover and the screen is gradual, and the distance between the end of the back cover and the screen The distance is the largest, and the vibrator is placed on the partial area.
  • the distance between other areas of the back cover and the screen may not be changed, and the thickness of a part of the device may be reduced.
  • the area of the hard substance other than the area where the hard substance is attached to the vibrator is provided with n holes, and n is a positive integer.
  • the air on the sticky substance can be released through the holes on the hard substance, so that the hard substance and the screen can be better attached.
  • the hard substance is a metal object, and the surface of the hard substance attached to the screen and/or the surface attached to the vibrator is coated with an insulating layer.
  • the hard substance is a metal substance
  • the hard substance and its accessories for example, the screen, the middle frame. Etc.
  • the thermal conductivity of the hard substance is greater than a preset value.
  • hard materials with better thermal conductivity have better thermal conductivity. Since the vibrator generates heat during vibration, if the heating part of the vibrator is close to the screen side, the thermal conductivity can be better.
  • the hard material quickly transfers the heat generated by the vibrator so that the copper foil of the screen protection layer will dissipate the heat, and slow down the phenomenon of screen damage caused by the heat of the vibrator.
  • a third groove or a second hole is provided in the protective layer of the screen, and the third groove or the second hole contains the hard substance.
  • the screen sound device provided by the embodiments of the present application, by providing grooves or holes in the protective layer of the screen, without affecting the function of the screen, hard substances can be accommodated through the grooves or holes, and the thickness of the device can be reduced.
  • the hard substance is provided with a fourth groove for accommodating the vibrator, a third groove or a second hole in the protective layer of the screen accommodates the fourth groove, and the hard substance is in addition to The area other than the fourth groove is attached to the bottom of the screen.
  • the screen sounding device provided by the embodiment of the present application has a structure with a groove capable of accommodating the vibrator by setting the rigid material into the groove or hole of the screen, and utilizes the protective layer and rigidity of the screen.
  • the space of the substance in the thickness direction of the device compensates for the space in the thickness direction of the device occupied by the vibrator, which can effectively reduce the size of the device in the thickness direction.
  • the vibrator generates heat during vibration.
  • the heat dissipation effect will be reduced. It is arranged to have a structure with a groove capable of accommodating the vibrator, and the groove is accommodated in the groove or hole of the screen, so that the area of the hard substance except the fourth groove is attached to the bottom of the screen, and the hard substance can be pasted
  • the area excluding the groove under the screen dissipates the heat from the copper foil in the protective layer of the screen, which not only reduces the thickness of the device, but also increases the heat dissipation effect.
  • the screen sounding device further includes a camera, and the hard substance and the vibrator are arranged at a position close to the camera.
  • the screen sounding device provided by the embodiment of the present application can satisfy the user's usage habits by arranging the hard substance and the vibrator at a position close to the camera.
  • the screen sound emitting device further includes a battery, and the projection of the hard substance and the vibrator on the surface of the screen does not coincide with the projection of the battery on the surface of the screen.
  • the screen sound generating device further includes a screen circuit board attached to the bottom of the screen, and,
  • the projection of the vibrator and the hard substance on the surface of the screen does not coincide with the projection of the screen circuit board on the surface of the screen.
  • the two components of the vibrator and the hard substance are not stacked with the screen circuit board.
  • the equipment can be reduced to a certain extent. Thickness, on the other hand, avoids as much as possible the problem of damage to the screen circuit board due to the vibration of the vibrator and hard materials. On the other hand, it avoids as much as possible the impact of the hard materials and the vibration effect of the vibrator due to the stacking of devices. The problem.
  • the screen sound emitting device further includes a screen circuit board arranged between the screen and the vibrator, and the vibrator is attached to the screen through the rigid substance and the screen circuit board ,as well as,
  • the projection of the screen circuit board on the surface of the screen and the projection of the vibrator and the hard substance on the surface of the screen at least partially overlap.
  • the screen sound-producing device provided by the embodiments of the present application can meet the usage requirements by stacking both the vibrator and the hard material on the screen circuit board when the space inside the device is limited.
  • the hard substance is attached to the side of the screen circuit board away from the screen; or,
  • the hard substance is attached between the screen and the screen circuit board; or,
  • the non-device area of the screen circuit board is provided with a third hole, and the third hole contains the hard substance.
  • a screen sounding device in a second aspect, includes:
  • a middle frame arranged under the screen is provided with a hole or a groove for accommodating the vibrator, and the vibrator drives the screen to vibrate in a direction perpendicular to the surface of the screen.
  • the vibration displacement can be increased and reduced
  • the energy loss and the reduction of the vibration of the back cover can improve the vibration effect; and, by providing a hole or groove that can accommodate the vibrator in the middle frame, the thickness of the device can be effectively reduced.
  • the middle frame is provided with the hole, and the vibrator extends out of the hole on a side of the middle frame away from the screen, and,
  • the screen sound generating device further includes a supporting device fixedly connected to the side of the middle frame away from the screen, and the surface of the vibrator protruding from the hole is in contact with the surface of the supporting device.
  • the middle frame when the middle frame is provided with a hole (for example, the first hole) for accommodating the vibrator, by providing a supporting device fixedly connected to the middle frame on the middle frame, it can be compared. Support the vibrator well.
  • a hole for example, the first hole
  • the vibrator includes a first magnetic device and a second magnetic device distributed along the thickness direction of the screen, a gap exists between the first magnetic device and the second magnetic device, and the first magnetic device A magnetic device is attached to the screen, the second magnetic device is attached to the support device, and the polarity of the first magnetic device or the second magnetic device changes according to the first frequency, so that the The first magnetic device and the second magnetic device satisfy the characteristics of homosexual attraction or opposite sex repulsion according to the first frequency.
  • the screen sound device fixes the second magnetic device through the supporting device, and uses the characteristics of homosexual attraction and opposite sex repulsion to make all energy push the first magnetic device to vibrate up and down to drive the screen to vibrate as much as possible. , Can effectively improve the vibration effect and improve the listening effect.
  • the peripheral area of the lower surface of the screen and the surface of the middle frame are attached via an adhesive layer
  • the adhesive layer includes a first area and a second area
  • the first area is close to the vibrator
  • the second area is at least part of the area of the adhesive layer excluding the first area
  • the size of the first area in the first direction is smaller than the size of the second area in the first direction
  • the first direction is a direction perpendicular to the inner side of the adhesive layer from the outer side of the adhesive layer, and the first direction is parallel to the surface of the screen.
  • the screen sound device provided by the embodiments of the present application, by setting the size of the viscous layer close to the vibrator in the direction perpendicular to the inner side of the viscous layer from the outer side of the viscous layer to be narrower, the middle frame and the inner frame can be reduced to a certain extent.
  • the binding force of the screen reduces the constraints on the vibrator to increase the vibration displacement of the vibrator, thereby improving the vibration effect of the screen and improving the listening effect.
  • the screen sound generating device further includes a back cover provided on a side of the middle frame away from the screen, and the peripheral area of the surface of the back cover facing the middle frame is attached to the surface of the middle frame.
  • the middle frame is provided with a hole for accommodating the vibrator, and the vibrator extends out of the hole on the side of the middle frame away from the screen, and,
  • the distance between the partial area starting from the end of the back cover and the screen is gradual, and the distance between the end of the back cover and the screen The distance is the largest, and the vibrator is placed on the partial area.
  • the distance between other areas of the back cover and the screen may not be changed, and the thickness of a part of the device may be reduced.
  • a groove or hole is provided in the protective layer of the screen, and the groove or hole in the protective layer accommodates the vibrator.
  • the screen sound device provided by the embodiments of the present application, by providing grooves or holes in the protective layer of the screen, without affecting the function of the screen, hard substances can be accommodated through the grooves or holes, and the thickness of the device can be reduced.
  • the screen sounding device further includes a camera, and the vibrator is arranged at a position close to the camera.
  • the screen sounding device provided by the embodiment of the present application can satisfy the user's usage habits by arranging the vibrator at a position close to the camera.
  • the screen sound emitting device further includes a battery, and the projection of the vibrator on the surface of the screen does not coincide with the projection of the battery on the surface of the screen.
  • the screen sound generating device further includes a screen circuit board attached to the bottom of the screen, and,
  • the projection of the vibrator on the surface of the screen does not coincide with the projection of the screen circuit board on the surface of the screen.
  • the thickness of the device in the thickness direction of the screen, by making the vibrator and the screen circuit board not stacked, on the one hand, to a certain extent, the thickness of the device can be reduced; The problem of damage to the screen circuit board that may be caused by the vibration of the vibrator is avoided. On the other hand, the problem of affecting the vibration effect of the vibrator due to the stacking of devices is avoided as much as possible.
  • the screen sound emitting device further includes a screen circuit board arranged between the screen and the vibrator, the vibrator is attached to the screen through the screen circuit board, and,
  • the projection of the screen circuit board on the surface of the screen and the projection of the vibrator on the surface of the screen at least partially overlap.
  • the screen sound-producing device provided by the embodiment of the present application can meet the usage requirements when the space inside the device is limited by stacking the vibrator and the screen circuit board.
  • the vibrator is attached to a side of the screen circuit board away from the screen; or,
  • the non-device area of the screen circuit board is provided with a hole for accommodating the vibrator.
  • Fig. 1 is a schematic structural diagram of a screen sound emitting device in an embodiment of the present application on the yz plane.
  • Fig. 2 is a schematic structural diagram of a screen sound emitting device in an embodiment of the present application on the xy plane.
  • Fig. 3 is a schematic structural diagram of a hard substance and a vibrator in an embodiment of the present application in the yz plane.
  • 4 and 5 are another schematic structural diagrams of the screen sound emitting device in the xy plane of the embodiment of the present application.
  • Fig. 6 is a schematic structural diagram of the middle frame in the xy plane of the embodiment of the present application.
  • Figures 7 and 8 are another schematic structural diagrams of the screen sound emitting device in the yz plane of the embodiment of the present application.
  • Fig. 9 is a schematic structural diagram of a partial area of a screen sound emitting device according to an embodiment of the present application.
  • FIG. 10 is another schematic structural diagram of the screen sound emitting device in the yz plane of the embodiment of the present application.
  • Fig. 11 is a schematic structural diagram of a supporting device according to an embodiment of the present application.
  • FIG. 12 is another schematic structural diagram of the screen sound emitting device in the yz plane of the embodiment of the present application.
  • FIG. 13 is another schematic structural diagram of the screen sound emitting device in the xy plane of the embodiment of the present application.
  • 14 to 18 are another schematic structural diagrams of the screen sound emitting device in the yz plane of the embodiment of the present application.
  • FIG. 19 is another schematic structural diagram of the screen sound emitting device in the xy plane of the embodiment of the present application.
  • 20 to 30 are another schematic structural diagrams of the screen sound emitting device in the yz plane of the embodiment of the present application.
  • the screen sounding device in the embodiment of the present application can be configured in or itself is any device with a screen, for example, the device can be a mobile phone, a Pad, a notebook computer, a smart watch, etc.
  • the x, y, and z directions are perpendicular to each other.
  • the length, width, and thickness directions of the device are consistent with the length, width, and thickness directions of the screen. Therefore, in the embodiments of this application, the z direction can be understood as The thickness direction of the device or the screen configured on the device, the y direction can be understood as the length direction of the device or the screen configured on the device, and the x direction can be understood as the width direction of the device or the screen configured on the device.
  • FIG. 1 is a schematic structural diagram of a screen sound emitting device in an embodiment of the present application in the yz plane
  • FIG. 2 is a schematic structure diagram of a screen sound emitting device in an embodiment of the present application in the xy plane.
  • the screen sound generating device 100 includes a screen 110, a hard substance 120, and a vibrator 130.
  • the hard substance 120 is disposed between the screen 110 and the vibrator 130.
  • the vibrator 130 is attached to the screen 110 through the hard substance 120.
  • the Young's modulus of the hard substance 120 is greater than the preset value, and the projection area of the hard substance 120 on the surface of the screen 110 is larger than the projection area of the vibrator 120 on the surface of the screen 110 and smaller than the surface area of the screen 110,
  • the vibrator 130 drives the screen 110 to vibrate in a direction perpendicular to the surface of the screen 110 through the hard substance 120 to make the screen 110 emit sound.
  • the vibrator 130 is attached to the screen 110 through the hard substance 120, which not only means that the vibrator 130 is attached to the screen 110 only through the hard substance 120, that is, the upper and lower surfaces of the hard substance 120 are respectively attached to the screen 110 and vibrate.
  • the attachment of the vibrator 130 can also mean that the vibrator 130 is attached to the screen 110 through the rigid substance 120 and other components (for example, the vibrator 130 described below may be attached to the screen 110 through the screen circuit board 180 and the rigid substance 120) ,
  • the embodiment of this application does not make any limitation.
  • the hard substance 120 is arranged between the screen 110 and the vibrator 130, which can be understood as the two surfaces of the hard substance are attached to the screen and the vibrator respectively.
  • the surface of the hard substance is attached to the screen, which can not only indicate the rigidity.
  • the surface of the substance is attached to the lower surface of the screen, or it can mean that the surface of the hard substance is attached to the surface of the groove or hole provided in the protective layer of the screen. As shown in Figures 15 to 17, it can all represent the surface of the hard substance.
  • the surface is attached to the screen, and the embodiment of the application does not make any limitation.
  • the vibration displacement can be increased, the energy loss is reduced, and the The vibration of the middle frame and the back cover can improve the vibration effect; and, because the vibrator is attached to the bottom of the screen by a hard material with a certain Young's modulus and area, on the one hand, the screen can be better supported by the hard material.
  • the vibrator when the vibrator vibrates the screen through a hard material, the vibration area of the screen can be increased by the hard material, so that most of the screen is vibrated as much as possible to produce a better vibration effect, especially for flexible
  • the screen sound device of the screen this design has better applicability; on the other hand, the vibrator will generate heat during the vibration process. If the heating part of the vibrator is close to the side of the screen, it is a hard material placed between the screen and the vibrator. It can alleviate the damage of the screen due to the heat generated by the vibrator.
  • the respective components of the screen sound generating device are designed accordingly, and each component is described in detail below.
  • the shape of the rigid substance 120 can be various shapes of figures, for example, the square shown in FIG. 2, or other arbitrary shapes (for example, irregular shapes, circular lights), and there is no limitation here.
  • the hard substance 120 is a sheet-like solid structure with a certain Young's modulus, which is not prone to deformation.
  • the Young's modulus of the hard substance 120 is greater than or equal to a preset value.
  • the preset value may be 0.5 Gpa.
  • the material of the hard substance 120 can be metal, or glass fiber material, etc. There is no limitation here, as long as the Young's modulus of the hard substance 120 is greater than the preset value.
  • the hard substance 120 can be steel sheet.
  • the projection area of the hard substance 120 on the xy plane is larger than the projection area of the vibrator 130 on the xy plane and smaller than the surface area of the screen 110.
  • the projection of the hard substance 120 on the xy plane can completely cover the projection of the vibrator 130 on the xy plane.
  • the size of the hard substance 120 in the x direction may be greater than or equal to the size of the vibrator in the x direction
  • the size of the hard substance 120 in the y direction may be greater than or equal to the size of the vibrator in the y direction size of.
  • the hard substance 120 and the screen 110 can be bonded by a viscous substance (for example, glue).
  • a viscous substance for example, glue
  • the bonding of the viscous substance may leave a certain amount of air on the viscous substance, which is not good.
  • the hard substance 120 is attached to the screen 110. Therefore, in order to increase the binding force of the screen 110 and the hard substance 120, referring to FIG. 3, optionally, the hard substance 120 is provided with n holes 121 in the area other than the area where the hard substance 120 and the vibrator 130 are attached, and n is positive Integer.
  • the hole on the hard substance 120 may be any shape of hole, and is not limited to the shape shown in FIG. 3, for example, the hole may be a square or various irregular patterns, and there is no limitation here.
  • the air on the sticky substance can be released through the holes on the hard substance 120, so that the hard substance 120 and the screen 110 can be better attached.
  • the side of the hard substance close to the screen does not need a foam layer for buffering that is in direct contact with the hard substance.
  • the foam layer can be the foam layer in the protective layer of the screen or the foam layer under the screen.
  • a foam layer can be placed above the copper foil layer of the rigid screen, the foam layer and the rigid material No direct contact.
  • the hard substance 120 may be a metal object, and the hard substance 120 may form a capacitance effect with devices (for example, a middle frame, a screen, etc.) attached to the hard substance 120, thereby affecting the antenna effect. Therefore, optionally, the hard substance 120 is a metal object, and the surface of the hard substance 120 attached to the screen 110 and/or the surface attached to the vibrator 130 is coated with an insulating layer. In this way, by coating the surface of the hard substance 120 with an insulating layer, it is possible to avoid the hard substance 120 and the devices attached to the hard substance 120 (for example, the screen 110) from forming a capacitance effect, so as to ensure the antenna effect as much as possible.
  • devices for example, a middle frame, a screen, etc.
  • the vibrator 130 generates heat during the vibration process. If the heating part of the vibrator is close to the screen side, more heat may damage the screen 110. Therefore, optionally, the thermal conductivity of the hard material 120 is greater than a preset value.
  • the preset value can be a numerical value or a numerical range.
  • the preset value may be 15 watts/(meter ⁇ degree Celsius).
  • the hard material 120 with good thermal conductivity has better thermal conductivity, and the heat generated by the vibrator 130 can be quickly transferred through the hard material 120 with good thermal conductivity, so that the copper foil in the protective layer of the screen 110 dissipates the heat, which slows down A phenomenon in which the screen 110 is damaged due to the heat generated by the vibrator 130.
  • the vibrator 130 is an exciter of a screen sounding device, and the screen 110 can be vibrated by the vibration of the vibrator 130.
  • the vibrator 130 may be any form of vibrator, which is not limited in the embodiment of the present application, for example, a linear vibrator or a piezoelectric ceramic vibrator.
  • FIG. 4 Illustratively, taking FIG. 4 as an example, a possible vibrator in the embodiment of the present application is briefly described.
  • the vibrator 130 may be a magnetic device.
  • the magnetic device may be a magnet or a circuit with magnetism. There is no limitation here. All devices that can generate a magnetic field or have magnetism can be called magnetic devices.
  • the vibrator is composed of a first magnetic device 131 and a second magnetic device 132. There is a gap between the two magnetic devices.
  • the second magnetic device 132 can be connected to other components 102 to make the second magnetic device 132. Fixed, changing the polarity of the first magnetic device 131 or the second magnetic device 132 according to a certain frequency, so that the first magnetic device 131 and the second magnetic device 132 have the effect of attracting and repelling the same sex, for example, maintaining the first magnetic device 131 and the second magnetic device 132.
  • the polarity of a magnetic device 131 is unchanged, and the polarity of the second magnetic device 132 is continuously changed, or the polarity of the second magnetic device 132 is kept unchanged, and the polarity of the first magnetic device 131 is continuously changed.
  • the principle of mutual attraction and repulsion of opposite sexes makes the first magnetic device 131 and the second magnetic device 132 have the same polarity, and the first magnetic device 131 moves toward the screen 110 to lift the screen 110.
  • the first magnetic device 132 moves away from the screen 110 to restore the position of the screen 110. In this way, the first magnetic device 131 continues to move up and down to drive The screen 110 moves up and down to realize the vibration of the screen 110.
  • the component 102 can be any component that can be connected to a vibrator configured in the screen sounding device, for example, the back cover and middle frame shown in FIG. 5, the supporting device shown in FIG. 10, etc., which will be described in detail below. There are no restrictions.
  • the middle frame 140 is arranged under the screen 110 to support other internal components of the screen sounding device and increase the rigidity of the system.
  • the vibrator 130 is used as an internal component of the screen sounding device and can have various positional relationships with the middle frame 140. Below, from the perspective of reducing the thickness of the device and improving the vibration effect, the centering The positional relationship between the frame 140 and the vibrator 130 is explained.
  • a first hole 1410 is provided in the middle frame 140, and the vibrator 130 is received in the first hole 1410.
  • the vibrator 130 protrudes from the first hole 1410 on the side of the middle frame 140 away from the screen 110.
  • a second groove 142 may be provided in the middle frame 140 to accommodate the hard substance 120.
  • a first groove 1411 is provided in the middle frame 140, and the vibrator 130 is received in the first groove 1411.
  • a second groove 142 may be provided in the middle frame 140 to accommodate the hard substance 120.
  • a structure in which a groove (for example, a first groove) is provided in the middle frame 140 can further reduce the size of the device in the thickness direction.
  • the projection area of the hard substance 120 on the surface of the screen 110 is less than or equal to The area of the surface of the screen 110 is half.
  • FIG. 9 is a schematic structural diagram of the partial area A shown in FIG. 7.
  • the shape of the first hole or the first groove (for example, the first groove or the second groove) provided on the middle frame 140 may be various shapes, and is not limited to the circular hole shown in FIG. 6 Or circular grooves, for example, the holes or grooves can be square or various irregular patterns, as long as they can accommodate the vibrator, and there is no limitation here.
  • the second groove provided on the middle frame 140 may be grooves of various shapes, and is not limited to the square groove shown in FIG. 6 as long as it can contain a hard substance, and there is no limitation here.
  • the middle frame 140 has a first hole or a first groove
  • the area of the hard substance 120 is larger than the area of the vibrator 130
  • the The frame 140 is provided with a second groove for containing the hard substance 120.
  • a first gap can be reserved for the first middle frame 140 and the hard substance 120 to avoid the hard substance 120 from contacting the middle frame 140 as much as possible.
  • the size of the first gap in the z direction is 0.2 mm.
  • the vibrator can vibrate up and down, wherein the side surface of the vibrator may be a surface of the vibrator other than the thickness direction perpendicular to the screen.
  • the entire area of the side surface of the vibrator has a gap with the middle frame, and there is no contact.
  • the area on the side of the vibrator far away from the hard material may be in contact with the middle frame, and the area near the hard material may have a gap with the middle frame without contact.
  • the supporting device 170 can be fixed on the middle frame 140 by any structure that can fix multiple components, such as screws, welding, rivets, etc.
  • the embodiment of the present application does not make any limitation.
  • the supporting device 170 may be a device of various structures.
  • the support device 170 may include a cylindrical structure 171 with an opening and a fixed end 172 protruding outward.
  • the vibrator 130 is placed on the cylindrical structure 171 to fix The end portion 172 is fixed to the middle frame 140; in the right figure of FIG. 11, the supporting device 170 may also include a sheet structure 171 and a fixed end portion 172 protruding outwards.
  • the vibrator 130 can be attached to the sheet through a viscous material On the shaped structure 171, the fixed end 172 is fixed to the middle frame 140.
  • the vibrator 130 may be the vibrator shown in FIG. 4.
  • the upper surface of the first magnetic device 131 is attached to the lower surface of the hard substance 120, and the first magnetic device 131
  • the lower surface of the second magnetic device 132 is attached to the surface of the supporting device 170.
  • the second magnetic device 132 is fixed by the supporting device 170. It is attracted by the same sex and repels the opposite sex. As much as possible, all the energy can drive the first magnetic device 131 to vibrate up and down to drive the screen 110 to vibrate through the hard substance 120. In this way, the vibration effect and the listening effect can be effectively improved.
  • the middle frame 140 can also be designed as a structure including the supporting device 170, that is, the supporting device 170 and the middle frame 140 are taken as an integral structure, which is not limited in the embodiment of the present application. .
  • the middle frame 140 and the rigid substance 120 can be A vibrator 130 is arranged in between, and the upper and lower surfaces of the vibrator 130 are attached to the hard material 120 and the middle frame 140 respectively.
  • Adhesive layer 150 Adhesive layer 150
  • a viscous substance for example, glue
  • the middle frame 140 and other components for example, a screen
  • the structure formed by the viscous substance may be referred to as the adhesive layer 150.
  • the peripheral area of the lower surface of the screen 110 and the surface of the middle frame 140 are adhered through the adhesive layer 150.
  • the adhesive layer 150 includes a first area 151 (for example, area 151-1 and area 151-2 in FIG. 13) and a second area 152.
  • the first area 151 is close to the hard substance 120.
  • the second area 152 is at least a part of the adhesive layer 150 except the first area 151.
  • the size of the first area 151 in the first direction is smaller than the size of the second area 152 in the first direction.
  • One direction is a direction from the outside of the adhesive layer 150 to the inside of the adhesive layer 150 perpendicularly, and the first direction is parallel to the surface of the screen 110.
  • FIG. 13 The diagram on the right of FIG. 13 is a schematic structural diagram of the partial area B in the diagram on the left of FIG. 13, and the first direction is the y direction or the x direction shown in FIG. 13.
  • the first direction is the y-direction, which is close to the adhesive layer of the hard substance 120 (for example, area 151-1 )
  • the size in the y direction is smaller than the size in the y direction of the adhesive layer (for example, the second area 152) away from the hard substance 120.
  • the first The direction is the x direction
  • the size of the adhesive layer close to the hard substance 120 (for example, the region 151-2) in the x direction is smaller than the size of the sticky layer away from the hard substance 120 (for example, the second region 152) in the x direction.
  • the bonding force between the middle frame and the screen can be reduced to a certain extent, and the hard material is reduced. Constraints to increase the vibration displacement of hard materials, thereby improving the vibration effect of the screen and improving the listening effect.
  • the back cover 160 is used to protect the device and is arranged on the side of the middle frame 140 away from the screen 110.
  • the peripheral area of the surface of the back cover 160 facing the middle frame 140 is attached to the surface of the middle frame 140. 5 to 12, the back cover 160 and the middle frame 141 may be bonded together with an adhesive material, and an adhesive layer 150 is formed between the back cover 160 and the middle frame 140.
  • the embodiment of the present application may also design the back cover 160 in a related manner.
  • the middle frame 140 is provided with a first hole 1410 for accommodating the vibrator 130, and the vibrator 130 extends out of the first hole 1410 on the side of the middle frame 140 away from the screen 110, and the thickness of the screen 110 In the direction, the distance between the partial area 161 starting from the end of the back cover 160 and the screen 110 is gradual, and the distance between the end of the back cover 160 and the screen 110 is the largest, and the partial area 161 is Vibrator 130.
  • the end of the back cover 160 may be the end of the back cover 160 in the x-direction or the y-direction, and the specific design can refer to the position of the vibrator 130, which is not limited here.
  • the back cover 160 can be divided into an area 161 and an area 162.
  • the area 161 can be understood as an area where the back cover 160 has a significantly inclined, and the area 162 can be understood as a relatively flat area in the back cover 160.
  • a vibrator 140 protruding from the first hole 1410 of the middle frame 140 is placed on 161. It can be seen that by using the area 161 as an inclined part to place the vibrator 130, there is no need to change the distance between other areas of the back cover 160 and the screen 110, and the thickness of a part of the device can be reduced.
  • the lower surface of the vibrator 140 can be attached to the upper surface of the area 161, and the back cover 140 can be used as a support device for the vibrator 130 to support the vibrator 130, and the vibrator 130 is shown in FIG. 4 When the vibrator composed of two magnetic devices is shown, it can also effectively improve the vibration effect.
  • the screen 110 may be a flexible screen or a rigid screen, and there is no limitation here.
  • the related design of the screen 110 may be implemented in the following possible manners.
  • a third groove or a second hole is provided in the protective layer 111 of the screen 110, and the third groove or the second hole contains the hard substance 120.
  • the protective layer of the screen 110 may include at least one layer that protects the device layer 112 of the screen 110, such as a copper foil layer or a foam layer.
  • the rigid substance 120 can be contained without affecting the function of the screen 110, and the thickness of the device can be reduced.
  • the hard substance 120 is provided with a fourth groove for accommodating the vibrator 130, the third groove or the second hole in the protective layer 111 of the screen 110 accommodates the fourth groove 121, and the hard substance 120 except The area 122 other than the fourth groove 121 is attached to the bottom of the screen 110.
  • the fourth groove 121 is attached to the two opposite surfaces of the screen 110, and the area of the hard substance 120 except the fourth groove 121 is attached to the two opposite surfaces of the screen 1110.
  • the hard substance 120 is arranged to have the structure of the groove 121 capable of accommodating the vibrator 130, the groove 121 is accommodated in the groove or hole of the screen 110, and the protective layer of the screen 110 and the hard substance 120 are used in the device
  • the space in the thickness direction compensates for the space in the thickness direction of the device occupied by the vibrator 130, which can effectively reduce the size of the device in the thickness direction.
  • the material of the hard material with higher thermal conductivity is softer.
  • a hard material with a larger thickness can be designed.
  • the device shown in Figure 15 can be designed. That is, the hard substance is contained in the protective layer of the screen.
  • the heat generated by the vibrator cannot be dissipated from the copper foil in the protective layer of the screen.
  • the groove is accommodated in the groove or hole of the screen, so that the area of the hard substance except the fourth groove fits under the screen ,
  • the heat can be dissipated from the copper foil in the protective layer of the screen through the hard material attached to the area under the screen except the groove, which not only reduces the thickness of the device, but also increases the heat dissipation effect.
  • a groove or hole for accommodating a vibrator and a hard substance can be provided on the middle frame and a groove or hole for accommodating a hard substance on the screen.
  • a groove or hole for accommodating a vibrator and a hard substance can be provided on the middle frame, and an inclined area can be provided on the back cover.
  • a groove or hole for accommodating a hard substance may be provided on the screen circuit board and a groove or hole for accommodating a hard substance and a vibrator on the middle frame.
  • the hard substance 120 and the vibrator 130 can be placed in any position in the device, as long as it does not affect the normal operation of other devices.
  • the screen sounding device includes a camera, and the hard substance 120 and the vibrator 130 are set close to the camera.
  • the camera will be set in the upper half area and the lower half area of the screen on the xy plane. If the area where the camera is set is recorded as the upper half area, the vibrator 130 will also be set in the upper half area.
  • the screen sound setting also includes a screen circuit board 180 attached to the bottom of the screen 110.
  • the screen circuit board 180 is set in the lower half of the screen 110.
  • the hard substance 120 and the vibrator 130 may be arranged close to the screen circuit board 180.
  • the projection of the vibrator 130 and the hard substance 120 on the surface of the screen 110 does not coincide with the projection of the screen circuit board 180 on the surface of the screen 110.
  • the two components of the vibrator 130 and the rigid substance 120 are not stacked with the screen circuit board 180.
  • the thickness of the device can be reduced, on the other hand, avoid as much as possible.
  • the problem of damage to the screen circuit board that may be caused by the vibration of the vibrator and the hard material is avoided.
  • the problem of affecting the vibration effect of the hard material and the vibrator due to the stacking of devices is avoided as much as possible.
  • the screen sounding device further includes a screen circuit board 180 arranged between the screen 110 and the vibrator 130, and the vibrator 130 is attached to the screen 110 through a rigid substance 120 and the screen circuit board 180, And, the projection of the screen circuit board 180 on the surface of the screen 110 and the projection of the vibrator 130 and the hard substance 120 on the surface of the screen 110 at least partially overlap.
  • At least partial overlap means partial overlap and full overlap
  • full overlap can mean that the projection of the screen circuit board 180 on the surface of the screen 110 surrounds the projection of the vibrator 130 and the hard substance 120 on the surface of the screen 110, or it can mean the screen circuit board 180
  • the projection on the surface of the screen 110 completely coincides with the projection on the surface of the screen 110 by the vibrator 130 or the hard substance 120. That is to say, just opposite to the first design method, in the z direction, the two components of the vibrator 130 and the rigid substance 120 are stacked on the screen circuit board 180.
  • the screen circuit board 180 is arranged on the screen. Between the vibrator 110 and the vibrator 130, the vibrator 130 is attached to the screen 110 through the rigid substance 120 and the screen circuit board 180.
  • the rigid substance 120 is attached to the side of the screen circuit board 180 away from the screen 110.
  • the side of the screen circuit board 180 away from the screen 110 represents the lower surface of the screen circuit board 180, and the upper surface of the hard substance 120 is attached to the lower surface of the screen circuit board 180.
  • the hard substance 120 is attached to the non-device area of the screen circuit board 180 to avoid damage to the components of the screen circuit board 180 due to the vibration of the hard substance 120.
  • the rigid substance 120 is attached between the screen 110 and the screen circuit board 180.
  • the upper surface of the hard substance 120 is attached to the screen 110, and the lower surface of the hard substance 120 is attached to the vibrator 130.
  • the hard substance 120 is attached to the non-device area of the screen circuit board 180 to avoid damage to the components of the screen circuit board 180 due to the vibration of the hard substance 120.
  • the non-device area of the screen circuit board 180 is provided with a third hole, and the third hole contains a hard substance 120.
  • a third hole may be provided in the screen circuit board 180 first, and devices and wiring may be arranged in areas other than the third hole.
  • the positional relationship between the third hole, the hard substance and the vibrator shown in FIG. 22 is only an exemplary illustration.
  • the size of the screen circuit board 180 in the z direction is greater than the size of the hard substance 120 in the z direction, the hard substance 120 It extends completely into the screen circuit board 180, and a part of the vibrator 130 may also extend into the third hole.
  • the rigid material 120 and the vibrator 130 are connected to the middle frame 140, the back cover 160, the adhesive layer 150 and other components.
  • the positional relationship and connection relationship please refer to the positional relationship and connection relationship of these components in the embodiment corresponding to Figure 2 to Figure 18 above.
  • the embodiment of this application does not make any limitation.
  • specific description please refer to the above related description.
  • I won’t repeat it.
  • the positional relationship and connection relationship of the hard substance 120, the vibrator 130, the middle frame 140, and the supporting device 170 may correspond to the relationship of these components in FIG.
  • the screen sounding device may include multiple vibrators and multiple hard substances, one vibrator corresponds to one hard substance, and the position relationship and connection relationship between each vibrator and the corresponding hard substance can refer to the above implementation
  • the positional relationship and connection relationship between each vibrator and the corresponding hard substance and other devices please refer to the above-mentioned embodiments.
  • a hard substance 120 and a vibrator 130 may be provided on both sides of the center line of the device along the y direction.
  • each hard substance 120 and the vibrator 130 and the design of the hard substance 120 and the vibrator 130 and other components can refer to FIGS. 1-22.
  • the design of the corresponding embodiment is not limited in the embodiment of this application.
  • the screen sounding device includes multiple hard materials and multiple vibrators
  • a part of the hard materials and vibrators can be placed close to the screen circuit board.
  • a hard substance 120 and a vibrator 130 are set on the upper In the half area, a hard substance 120 and a vibrator 130 are arranged in the lower half area.
  • the screen circuit board 180 is located in the lower half area, the hard substance 120 and the vibrator 130 are inevitably close to the screen circuit board 180.
  • the corresponding embodiment sets the positional relationship and connection relationship between the hard substance 120, the vibrator 130 and the screen circuit board 180, refer to the hard substance 120, the vibrator 130 and the middle frame 140, the adhesive layer 150, and the rear
  • the positional relationship and connection relationship of the cover 160 and the supporting device 170 and other components set the relationship of these components.
  • the screen sounding device 200 includes a screen 210, a vibrator 230 attached to the bottom of the screen 210, a middle frame 240 disposed below the screen 210, and the middle frame 240 is provided with a hole or groove for accommodating the vibrator 230 ,
  • the vibrator 230 drives the screen 210 to vibrate in a direction perpendicular to the surface of the screen 210.
  • FIG. 25 shows a structure in which a hole is provided in the middle frame 240
  • FIG. 26 shows a structure in which a groove is provided in the middle frame 240.
  • the vibration displacement can be increased, the energy loss is reduced, and the vibration of the back cover can be reduced.
  • the vibration effect can be improved; and the thickness of the device can be effectively reduced by providing a hole or groove capable of accommodating the vibrator in the middle frame.
  • the middle frame 240 is provided with a hole, and the vibrator 230 extends out of the hole on the side of the middle frame 240 away from the screen 210, and,
  • the screen sounding device further includes a supporting device 270 fixedly connected to the side of the middle frame 240 away from the screen 210, and the surface of the vibrator 240 protruding from the hole is in contact with the surface of the supporting device 270.
  • the peripheral area of the lower surface of the screen 210 and the surface of the middle frame 240 are bonded by an adhesive layer 250, which includes a first area and The second area, the first area is close to the vibrator 230, the second area is at least a part of the adhesive layer 250 excluding the first area, the size of the first area in the first direction is smaller than the size of the second area in the first direction
  • the first direction is a direction from the outside of the adhesive layer 250 to the inside of the adhesive layer 250 perpendicularly, and the first direction is parallel to the surface of the screen 210.
  • the first area of the adhesive layer 250 may correspond to the first area 251 of the above adhesive layer 150, and the second area of the adhesive layer 250 may correspond to the above adhesive layer 150.
  • the second area 252 of will not be repeated here.
  • the screen sounding device further includes a back cover arranged on the side of the middle frame 240 away from the screen 210, and the peripheral area of the surface of the back cover facing the middle frame 240 is attached to the surface of the middle frame 240.
  • the middle frame 240 is provided with a hole for accommodating the vibrator 230.
  • the vibrator 230 extends from the hole on the side of the middle frame 240 away from the screen 210, and, in the thickness direction of the screen 210, a partial area from the end of the back cover The distance from the screen 210 is gradual, and the distance between the end of the back cover and the screen 20 is the largest, and a vibrator 23 is placed on a part of the area.
  • the back cover may be the back cover 160 corresponding to FIG. 14 above, and a part of the area of the back cover may correspond to the part of the area 161 of the back cover 160 corresponding to FIG. 14.
  • a detailed description of the relationship between the back cover, the vibrator and the middle frame You can refer to the relevant description above, for brevity, no further description.
  • a groove or hole is provided in the protective layer 212 of the screen 210, and the groove or hole in the protective layer 212 accommodates the vibrator 230.
  • the protective layer of the screen 210 may include at least one layer that protects the device layer 212 of the screen 210, such as a copper foil layer or a foam layer.
  • the vibrator 230 can be placed anywhere in the device, as long as it does not affect the normal operation of other devices.
  • the screen sounding device includes a camera, and the vibrator 230 is set close to the camera.
  • the screen sound setting also includes a screen circuit board 280 attached to the bottom of the screen 210.
  • the vibrator 230 can also be set close to the screen circuit board 280.
  • the screen sound generating device further includes a screen circuit board 280 attached to the bottom of the screen 210, the projection of the vibrator 230 on the surface of the screen 210 and the screen circuit board 280 on the surface of the screen 210 The projections do not overlap.
  • the vibrator 230 and the screen circuit board 280 are not stacked.
  • the thickness of the device can be reduced, on the other hand, it can reduce the damage that may be caused by the vibration of the vibrator.
  • the problem of the screen circuit board reduces the problem of affecting the vibration effect of the vibrator due to the stacking of devices
  • the vibrator, screen, and screen circuit board in FIG. 19 can all be analogous to the vibrator 230, the screen 210, and the screen circuit board 280 here.
  • the screen sounding device further includes a screen circuit board 280 disposed between the screen 210 and the vibrator 230, the vibrator 230 is attached to the screen 210 through the screen circuit 280, and the vibrator The projection of 230 on the surface of the screen 210 and the projection of the screen circuit board 280 on the surface of the screen 210 at least partially overlap.
  • the vibrator 230 and the screen circuit board 280 are stacked, wherein at least partial overlap indicates partial overlap and full overlap, and full overlap can indicate that the screen circuit board 280 is in
  • the projection of the surface of the screen 210 surrounds the projection of the vibrator 230 on the surface of the screen 210, which can also mean that the projection of the screen circuit board 280 on the surface of the screen 210 and the projection of the vibrator 230 on the surface of the screen 210 completely coincide.
  • the screen circuit board 280 is disposed between the screen 210 and the vibrator 230, and the vibrator 230 is attached to the screen 210 through the screen circuit board 280.
  • the vibrator 230 is attached to the side of the screen circuit board 280 away from the screen 210.
  • the side of the screen circuit board 280 away from the screen 210 represents the lower surface of the screen circuit board 280, and the upper surface of the vibrator 230 is attached to the lower surface of the screen circuit board 280.
  • the vibrator 230 is attached to the non-device area of the screen circuit board 280 to avoid damage to the devices of the screen circuit board 280 due to the vibration of the vibrator 230.
  • the non-device area of the screen circuit board 280 is provided with a hole for accommodating the vibrator 230.
  • holes can be provided in the screen circuit board 280 first, and devices and wiring can be arranged in areas outside the holes.
  • the positional relationship and connection relationship between the vibrator and other components such as the middle frame, the back cover, the adhesive layer, etc. can refer to the above about these
  • the position relationship and connection relationship of the components are not limited in the embodiment of the present application. For a specific description, reference may be made to the relevant description above. For brevity, details are not repeated.
  • the screen sounding device may include multiple vibrators, and the positional relationship and connection relationship between each vibrator and other devices (for example, the screen, the middle frame, the back cover, the supporting device, etc.) can refer to the foregoing embodiments.
  • one vibrator may be provided on both sides of the center line of the device along the y direction.
  • the design of the vibrator and the design of the vibrator and other components can refer to the design of the embodiment corresponding to FIG. 25 to FIG. 30, which is not done in the embodiment of the application. Any restrictions.
  • the screen sounding device includes multiple vibrators
  • a part of the vibrators can be arranged close to the screen circuit board.
  • the screen sounding device includes two vibrators. If the area on one side of the center line is recorded as the upper half of the device, and the area on the other side of the center line is recorded as the lower half of the device, one vibrator is set in In the upper half area, another vibrator is set in the lower half area. Assuming that the screen circuit board is located in the lower half area, the vibrator is inevitably close to the screen circuit board.

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Abstract

本申请提供了一种屏幕发声设备，在屏幕下方设置振动器和具有一定杨氏模量和面积大小的硬性物质，该振动器通过该硬性物质带动该屏幕沿垂直于该屏幕的表面的方向振动，可以使得振动器通过硬性物质振动屏幕的过程中，通过硬性物质增加屏幕的振动面积，以尽可能使得屏幕的大部分区域都被振动，以产生更好的振动效果。

Description

一种屏幕发声设备
本申请要求在2019年3月25日提交中国国家知识产权局、申请号为201910229225.7、发明名称为“一种屏幕发声设备”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
本申请涉及电子设备领域，更具体地，涉及一种屏幕发声设备。
背景技术
基于全面屏手机以及外观无孔化的设计需求，现有技术提供了利用屏幕的振动产生声音的屏幕发声技术，以替代传统的在手机上开听筒产生声音的技术。屏幕发声技术是利用设置在手机内部的振动器的振动带动屏幕振动，以产生声波，传送入人耳。
目前的屏幕发声技术中，将振动器贴合在手机的中框，振动器通过带动中框来带动屏幕振动，振动效果差。
因此，亟需提供一种基于屏幕发声技术的设备，以提高振动效果。
发明内容
本申请提供一种屏幕发声设备，通过在屏幕和振动器之间设置硬性物质，可以有效地提高屏幕的振动效果。
第一方面，提供了一种屏幕发声设备，所述屏幕发声设备包括：
屏幕、硬性物质和振动器，其中，
所述硬性物质设置在所述屏幕和所述振动器之间，所述振动器通过所述硬性物质贴合在所述屏幕上，所述振动器通过所述硬性物质带动所述屏幕沿垂直于所述屏幕的表面的方向振动，所述硬性物质的杨氏模量大于预设值，所述硬性物质在所述屏幕的表面的投影的面积大于所述振动器在所述屏幕的表面的投影的面积且小于所述屏幕的表面的面积。
因此，本申请实施例提供的屏幕发声设备，通过在屏幕下方设置振动器，相比于将振动器贴合在中框的结构，由于不需要振动中框带动屏幕振动，可以增加振动位移、减少能量损耗以及减少了中框和后盖的振动，可以提高振动效果；并且，由于振动器通过具有一定杨氏模量和面积大小的硬性物质贴合在屏幕下方，一方面，可以通过硬性物质更好地支撑屏幕，另一方面，振动器通过硬性物质振动屏幕的过程中，可以通过硬性物质增加屏幕的振动面积，以尽可能使得屏幕的大部分区域都被振动，以产生更好的振动效果，尤其针对具有柔性屏的屏幕发声设备，这种设计具有更好的适用性；再一方面，振动器振动过程中会发热，若振动器的发热部分(例如，设置有线圈的部分)靠近屏幕侧，设置在屏幕和振动器之间的硬性物质可以减缓由于振动器的发热导致的屏幕的损坏的现象。
可选地，所述屏幕发声设备还包括设置在所述屏幕下方的中框，所述中框设置有第一孔或第一凹槽，所述第一孔或所述第一凹槽容纳所述振动器。
因此，本申请实施例提供的屏幕发声设备，通过在中框设置可以容纳振动器的凹槽或 孔(例如，第一凹槽或第一孔)，利用凹槽或孔在设备的厚度方向的空间补偿振动器占用的设备的厚度方向的空间，可以有效地减少设备在厚度方向上的尺寸。
可选地，在所述屏幕的厚度方向上，所述硬性物质与所述中框朝向所述硬性物质的表面之间具有间隙。
因此，本申请实施例提供的屏幕发声设备，在屏幕的厚度方向上，通过使得硬性物质和中框之间具有间隙，可以使得硬性物质在沿着屏幕的厚度方向上下振动过程中尽量不接触中框，减少由于不断接触中框带来的噪音，以提高振动效果。
可选地，所述中框还设置有第二凹槽，所述第二凹槽容纳所述硬性物质。
因此，本申请实施例提供的屏幕发声设备，通过在中框中设置有容纳硬性物质的凹槽(例如，第二凹槽)，利用凹槽在设备的厚度方向的空间补偿硬性物质占用的设备的厚度方向的空间，可以有效地减少设备在厚度方向上的尺寸。
可选地，所述中框设置有所述第一孔，所述振动器在所述中框远离所述屏幕的一侧伸出所述第一孔，以及，
所述屏幕发声设备还包括与所述中框远离所述屏幕的一侧固定连接的支撑装置，所述振动器伸出所述第一孔的表面与所述支撑装置的表面接触。
因此，本申请实施例提供的屏幕发声设备，在中框设置有容纳振动器的孔(例如，第一孔)的情况下，通过在中框上设置与中框固定连接的支撑装置，可以较好地支撑振动器。
可选地，所述振动器包括沿着所述屏幕的厚度方向分布的第一磁性器件和第二磁性器件，所述第一磁性器件和所述第二磁性器件之间存在间隙，所述第一磁性器件与所述硬性物质贴合，所述第二磁性器件与所述支撑装置贴合，所述第一磁性器件或所述第二磁性器件的极性按照第一频率变化，以使得所述第一磁性器件和所述第二磁性器件按照第一频率满足同性相吸或异性相斥的特性。
因此，本申请实施例提供的屏幕发声设备，通过支撑装置将第二磁性器件固定，通过同性相吸以及异性相斥的特性尽可能使得所有能量推动第一磁性器件上下振动以通过硬性物质带动屏幕振动，这样，可以有效地提高振动效果，提高听音效果。
可选地，所述硬性物质在所述屏幕的表面的投影的面积小于或等于所述屏幕的表面的面积一半。
因此，本申请实施例提供的屏幕发声设备，通过使得硬性物质在屏幕的表面的投影的面积小于或等于屏幕的表面的面积的一半，对于在中框中设置用于容纳硬性物质的凹槽的情况，在可以减少设备的基础上，可以尽可能保持中框对屏幕以及其他器件的支撑作用。
可选地，所述屏幕的下表面的周边区域与所述中框的表面通过粘性层贴合，所述粘性层包括第一区域和第二区域，所述第一区域靠近所述硬性物质，所述第二区域为所述粘性层除所述第一区域以外的至少部分区域，所述第一区域在第一方向上的尺寸小于所述第二区域在所述第一方向上的尺寸，所述第一方向为由所述粘性层的外侧垂直指向所述粘性层的内侧的方向，所述第一方向平行于所述屏幕的表面。
因此，本申请实施例提供的屏幕发声设备，通过将靠近硬性物质的粘性层在由粘性层的外侧垂直指向粘性层的内侧的方向的尺寸设置的较窄，在一定程度上可以减少中框和屏幕的结合力，减少针对硬性物质的约束，以提高硬性物质的振动位移，从而提高屏幕的振动效果，提高听音效果。
可选地，所述屏幕发声设备还包括设置在所述中框远离所述屏幕的一侧的后盖，所述 后盖朝向所述中框的表面的周边区域与所述中框的表面贴合，所述中框设置有容纳所述振动器的第一孔，所述振动器在所述中框远离所述屏幕的一侧伸出所述第一孔，以及，
在所述屏幕的厚度方向上，从所述后盖的端部起始的部分区域与所述屏幕之间的距离是渐变的，并且，所述后盖的端部与所述屏幕之间的距离最大，所述部分区域上放置有所述振动器。
因此，本申请实施例提供的屏幕发声设备，通过将部分区域作为倾斜部分以放置振动器，可以不需要改变后盖的其他区域与屏幕之间的距离，能够减少设备的部分区域的厚度。
可选地，所述硬性物质除所述硬性物质与所述振动器贴合的区域以外的区域设置有n个孔，n为正整数。
因此，本申请实施例提供的屏幕发声设备，通过在硬性物质上设置多个孔，可以通过硬性物质上的孔将粘性物质上的空气释放，以使得硬性物质和屏可以更好地贴合。
可选地，所述硬性物质为金属物体，所述硬性物质贴合所述屏幕的表面和/或贴合所述振动器的表面涂覆有绝缘层。
因此，本申请实施例提供的屏幕发声设备，在硬性物质为金属物质的情况下，通过在硬性物质的表面涂覆有绝缘层，可以尽量避免硬性物质与其附件的器件(例如，屏幕、中框等)形成电容效应，从而尽量保证天线效果。
可选地，所述硬性物质的导热系数大于预设值。
因此，本申请实施例提供的屏幕发声设备，导热系数较好的硬性物质的导热性能较好，由于振动器振动过程中会发热，若振动器的发热部分靠近屏幕侧，可以通过导热性能较好的硬性物质快速传递振动器产生的热量使得屏幕保护层的铜箔将热量均散开，减缓由于振动器的发热导致的屏幕的损坏的现象。
可选地，所述屏幕的保护层中设置有第三凹槽或第二孔，所述第三凹槽或第二孔容纳所述硬性物质。
因此，本申请实施例提供的屏幕发声设备，通过在屏幕的保护层中设置凹槽或孔，在不影响屏幕的功能的情况下，可以通过凹槽或孔容纳硬性物质，可以减少设备的厚度。
可选地，所述硬性物质设置有容纳所述振动器的第四凹槽，所述屏幕的保护层中的第三凹槽或第二孔容纳所述第四凹槽，所述硬性物质除所述第四凹槽以外的区域贴合在所述屏幕下方。
因此，本申请实施例提供的屏幕发声设备，通过将硬性物质设置为具有能够容纳振动器的凹槽的结构，将该凹槽容纳于屏幕的凹槽或孔中，利用屏幕的保护层以及硬性物质在设备的厚度方向的空间补偿振动器占用的设备的厚度方向的空间，可以有效地减少设备在厚度方向上的尺寸。
此外，振动器在振动过程中会产生热量，对于导热系数较大的硬性物质而言，若是将硬性物质整体容纳在屏幕的保护层的凹槽或孔中，会降低散热效果，通过将硬性物质设置为具有能够容纳振动器的凹槽的结构，将该凹槽容纳于屏幕的凹槽或孔中，使得硬性物质除第四凹槽以外的区域贴合在屏幕的下方，可以通过硬性物质贴合在屏幕下方的除凹槽以外的区域将热量从屏幕的保护层中的铜箔中散开，既减少了设备的厚度，也增加了散热效果。
可选地，所述屏幕发声设备还包括摄像头，所述硬性物质和所述振动器设置在靠近所述摄像头的位置。
因此，本申请实施例提供的屏幕发声设备，通过将硬性物质和振动器设置在靠近摄像头的位置，可以满足用户的使用习惯。
可选地，所述屏幕发声设备还包括电池，所述硬性物质和所述振动器在所述屏幕的表面的投影与所述电池在所述屏幕的表面的投影不重合。
可选地，所述屏幕发声设备还包括贴合在所述屏幕下方的屏幕电路板，以及，
所述振动器和所述硬性物质在所述屏幕的表面的投影与所述屏幕电路板在所述屏幕的表面的投影不重合。
因此，本申请实施例提供的屏幕发声设备，在屏幕的厚度方向上，通过使得振动器和硬性物质这两个部件与屏幕电路板都无堆叠，一方面，在一定程度上，可以减少设备的厚度，另一方面，尽可能避免了由于振动器和硬性物质的振动可能引起的损坏屏幕电路板的问题，再一方面，尽可能避免了由于器件的堆叠而影响硬性物质和振动器的振动效果的问题。
可选地，所述屏幕发声设备还包括设置在所述屏幕和所述振动器之间的屏幕电路板，所述振动器通过所述硬性物质和所述屏幕电路板贴合在所述屏幕上，以及，
所述屏幕电路板在所述屏幕的表面的投影与所述振动器和所述硬性物质在所述屏幕的表面的投影至少部分重合。
因此，本申请实施例提供的屏幕发声设备，通过使得振动器和硬性物质都与屏幕电路板堆叠，在设备内部的空间有限的情况下，可以在满足使用需求。
可选地，所述硬性物质贴合在所述屏幕电路板远离所述屏幕的一侧；或，
所述硬性物质贴合在所述屏幕和所述屏幕电路板之间；或，
所述屏幕电路板的非器件区设置有第三孔，第三孔容纳所述硬性物质。
第二方面，提供了一种屏幕发声设备，所述屏幕发声设备包括：
屏幕；
贴合在所述屏幕下方的振动器；
设置在所述屏幕下方的中框，所述中框设置有容纳所述振动器的孔或凹槽，所述振动器带动所述屏幕沿垂直于所述屏幕的表面的方向振动。
因此，本申请实施例提供的屏幕发声设备，通过在屏幕下方设置振动器，相比于将振动器贴合在中框的结构，由于不需要振动中框带动屏幕振动，可以增加振动位移、减少能量损耗以及减少了后盖的振动，可以提高振动效果；并且，通过在中框中设置能够容纳振动器的孔或凹槽，可以有效地减少设备的厚度。
可选地，所述中框设置有所述孔，所述振动器在所述中框远离所述屏幕的一侧伸出所述孔，以及，
所述屏幕发声设备还包括与所述中框远离所述屏幕的一侧固定连接的支撑装置，所述振动器伸出所述孔的表面与所述支撑装置的表面接触。
因此，本申请实施例提供的屏幕发声设备，在中框设置有容纳振动器的孔(例如，第一孔)的情况下，通过在中框上设置与中框固定连接的支撑装置，可以较好地支撑振动器。
可选地，所述振动器包括沿着所述屏幕的厚度方向分布的第一磁性器件和第二磁性器件，所述第一磁性器件和所述第二磁性器件之间存在间隙，所述第一磁性器件与所述屏幕贴合，所述第二磁性器件与所述支撑装置贴合，所述第一磁性器件或所述第二磁性器件的极性按照第一频率变化，以使得所述第一磁性器件和所述第二磁性器件按照第一频率满足 同性相吸或异性相斥的特性。
因此，本申请实施例提供的屏幕发声设备，通过支撑装置将第二磁性器件固定，通过同性相吸以及异性相斥的特性尽可能使得所有能量推动第一磁性器件上下振动以带动屏幕振动，这样，可以有效地提高振动效果，提高听音效果。
可选地，所述屏幕的下表面的周边区域与所述中框的表面通过粘性层贴合，所述粘性层包括第一区域和第二区域，所述第一区域靠近所述振动器，所述第二区域为所述粘性层除所述第一区域以外的至少部分区域，所述第一区域在第一方向上的尺寸小于所述第二区域在所述第一方向上的尺寸，所述第一方向为由所述粘性层的外侧垂直指向所述粘性层的内侧的方向，所述第一方向平行于所述屏幕的表面。
因此，本申请实施例提供的屏幕发声设备，通过将靠近振动器的粘性层在由粘性层的外侧垂直指向粘性层的内侧的方向的尺寸设置的较窄，在一定程度上可以减少中框和屏幕的结合力，减少针对振动器的约束，以提高振动器的振动位移，从而提高屏幕的振动效果，提高听音效果。
可选地，所述屏幕发声设备还包括设置在所述中框远离所述屏幕的一侧的后盖，所述后盖朝向所述中框的表面的周边区域与所述中框的表面贴合，所述中框设置有容纳所述振动器的孔，所述振动器在所述中框远离所述屏幕的一侧伸出所述孔，以及，
在所述屏幕的厚度方向上，从所述后盖的端部起始的部分区域与所述屏幕之间的距离是渐变的，并且，所述后盖的端部与所述屏幕之间的距离最大，所述部分区域上放置有所述振动器。
因此，本申请实施例提供的屏幕发声设备，通过将部分区域作为倾斜部分以放置振动器，可以不需要改变后盖的其他区域与屏幕之间的距离，能够减少设备的部分区域的厚度。
可选地，所述屏幕的保护层中设置有凹槽或孔，所述保护层中的凹槽或孔容纳所述振动器。
因此，本申请实施例提供的屏幕发声设备，通过在屏幕的保护层中设置凹槽或孔，在不影响屏幕的功能的情况下，可以通过凹槽或孔容纳硬性物质，可以减少设备的厚度。
可选地，所述屏幕发声设备还包括摄像头，所述振动器设置在靠近所述摄像头的位置。
因此，本申请实施例提供的屏幕发声设备，通过将振动器设置在靠近摄像头的位置，可以满足用户的使用习惯。
可选地，所述屏幕发声设备还包括电池，所述振动器在所述屏幕的表面的投影与所述电池在所述屏幕的表面的投影不重合。
可选地，所述屏幕发声设备还包括贴合在所述屏幕下方的屏幕电路板，以及，
所述振动器在所述屏幕的表面的投影与所述屏幕电路板在所述屏幕的表面的投影不重合。
因此，本申请实施例提供的屏幕发声设备，在屏幕的厚度方向上，通过使得振动器与屏幕电路板无堆叠，一方面，在一定程度上，可以减少设备的厚度，另一方面，尽可能避免了由于振动器的振动可能引起的损坏屏幕电路板的问题，再一方面，尽可能避免了由于器件的堆叠而影响振动器的振动效果的问题。
可选地，所述屏幕发声设备还包括设置在所述屏幕和所述振动器之间的屏幕电路板，所述振动器通过所述屏幕电路板贴合在所述屏幕上，以及，
所述屏幕电路板在所述屏幕的表面的投影与所述振动器在所述屏幕的表面的投影至 少部分重合。
因此，本申请实施例提供的屏幕发声设备，通过使得振动器与屏幕电路板堆叠，在设备内部的空间有限的情况下，可以在满足使用需求。
可选地，所述振动器贴合在所述屏幕电路板远离所述屏幕的一侧；或，
所述屏幕电路板的非器件区设置有容纳所述振动器的孔。
附图说明
图1是本申请实施例的屏幕发声设备在yz平面的示意性结构图。
图2是本申请实施例的屏幕发声设备在xy平面的示意性结构图。
图3是本申请实施例的硬性物质和振动器在yz平面的示意性结构图。
图4和图5是本申请实施例的屏幕发声设备在xy平面的另一示意性结构图。
图6是本申请实施例的中框在xy平面的示意性结构图。
图7和图8是本申请实施例的屏幕发声设备在yz平面的另一示意性结构图。
图9是本申请实施例的屏幕发声设备的局部区域的示意性结构图。
图10是本申请实施例的屏幕发声设备在yz平面的另一示意性结构图。
图11是本申请实施例的支撑装置的示意性结构图。
图12是本申请实施例的屏幕发声设备在yz平面的另一示意性结构图。
图13是本申请实施例的屏幕发声设备在xy平面的另一示意性结构图。
图14至图18是本申请实施例的屏幕发声设备在yz平面的另一示意性结构图。
图19是本申请实施例的屏幕发声设备在xy平面的另一示意性结构图。
图20至图30是本申请实施例的屏幕发声设备在yz平面的另一示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的屏幕发声设备可以被配置在或本身为任何具有屏幕的设备，例如，该设备可以是手机、Pad、笔记本电脑、智能手表等。
首先，对本申请实施例的附图的坐标系进行说明。x、y和z方向两两垂直，一般情况下，设备的长度、宽度和厚度方向是与屏幕的长度、宽度和厚度方向是一致的，因此，在本申请实施例中，z方向可以理解为设备或配置在设备上的屏幕的厚度方向，y方向可以理解为设备或配置在设备上的屏幕的长度方向，x方向可以理解为设备或配置在设备上的屏幕的宽度方向。
以下，结合图1至图30，对本申请实施例的屏幕发声设备做详细说明。
图1是本申请实施例的屏幕发声设备在yz平面的示意性结构图，图2是本申请实施例的屏幕发声设备在xy平面的示意性结构图。
参考图1和图2，屏幕发声设备100包括屏幕110、硬性物质120和振动器130，硬性物质120设置在屏幕110和振动器130之间，振动器130通过硬性物质120贴合在屏幕110上，硬性物质120的杨氏模量大于预设值，并且，硬性物质120在屏幕110的表面的投影的面积大于振动器120在屏幕110的表面的投影的面积且小于屏幕110的表面的面积，振动器130通过硬性物质120带动屏幕110沿垂直于屏幕110的表面的方向振动，以使得屏幕110发声。
其中，振动器130通过硬性物质120贴合在屏幕110上，不仅可以表示振动器130仅通过硬性物质120与屏幕110贴合，即，硬性物质120的上表面和下表面分别与屏幕110和振动器130贴合，也可以表示振动器130通过硬性物质120以及其他部件与屏幕110贴合(例如，下文所述的振动器130可以通过屏幕电路板180和硬性物质120贴合在屏幕110上)，本申请实施例不做任何限定。
此外，硬性物质120设置在屏幕110和振动器130之间，可以理解为硬性物质的两个表面分别与屏幕的和振动器贴合，其中，硬性物质的表面与屏幕贴合，不仅可以表示硬性物质的表面与屏幕的下表面贴合，也可以表示硬性物质的表面与屏幕的保护层中设置的凹槽或孔的表面贴合，如图15至图17所示，都可以表示硬性物质的表面与屏幕贴合，本申请实施例不做任何限定。
在本申请实施例中，通过在屏幕下方设置振动器，相比于将振动器贴合在中框的结构，由于不需要振动中框带动屏幕振动，可以增加振动位移、减少能量损耗以及减少了中框和后盖的振动，可以提高振动效果；并且，由于振动器通过具有一定杨氏模量和面积大小的硬性物质贴合在屏幕下方，一方面，可以通过硬性物质更好地支撑屏幕，另一方面，振动器通过硬性物质振动屏幕的过程中，可以通过硬性物质增加屏幕的振动面积，以尽可能使得屏幕的大部分区域都被振动，以产生更好的振动效果，尤其针对具有柔性屏的屏幕发声设备，这种设计具有更好的适用性；再一方面，振动器在振动过程中会发热，若振动器的发热部分靠近屏幕侧，设置在屏幕和振动器之间的硬性物质可以减缓由于振动器的发热导致的屏幕的损坏的现象。
在本申请实施例中，主要从提高屏幕的振动效果以及减少设备的厚度的角度出发，对屏幕发声设备的各个部件做了相应设计，下面，对各个部件做详细说明。
硬性物质120
硬性物质120的形状可以是各种形状的图形，例如，图2所示的方形，也可以是其他任意形状(例如，不规则形状的图形、圆形灯)，此处不做任何限定。
硬性物质120是具有一定杨氏模量的片状固体结构，不容易发生形变，例如，硬性物质120的杨氏模量大于或等于预设值，示例性地，该预设值可以是0.5Gpa。硬性物质120的材料可以是金属，也可以是玻纤材料等，此处不做任何限定，只要硬性物质120的杨氏模量大于预设值即可，可选地，硬性物质120可以是钢片。
硬性物质120在xy平面的投影的面积大于振动器130在xy平面的投影的面积且小于110屏幕的表面的面积，其中，硬性物质120在xy平面的投影可以完全覆盖振动器130在xy平面的投影，具体地，硬性物质120的在x方向上的尺寸可以大于或等于振动器在x方向上的尺寸，以及，硬性物质120的在y方向上的尺寸可以大于或等于振动器在y方向上的尺寸。
在本申请实施例中，硬性物质120与屏幕110可以通过粘性物质(例如，胶)贴合，一般情况下，粘性物质的贴合可能会在粘性物质上残留一定量的空气，不能很好地将硬性物质120与屏幕110贴合。因此，为了增加屏幕110和硬性物质120的结合力，参考图3，可选地，硬性物质120除硬性物质120与振动器130贴合的区域以外的区域设置有n个孔121，n为正整数。应理解，硬性物质120上的孔可以是任何形状的孔，并不限于图3所示的形状，例如，孔可以是方形或各种不规则图形都可以，此处不做任何限定。
这样，可以通过硬性物质120上的孔将粘性物质上的空气释放，以使得硬性物质120 和屏幕110可以更好地贴合。
在本申请实施例中，硬性物质的靠近屏幕的一侧不需要与硬性物质直接接触的用于起缓冲作用的泡棉层。该泡棉层可以是屏幕的保护层中的泡棉层，也可以是屏幕下方的泡棉层。例如，在硬性屏幕中，硬性屏幕和硬性屏幕下方都不需要泡棉层，在柔性屏幕中，虽然可以在硬性屏幕的铜箔层的上方设置泡棉层，但是，该泡棉层与硬性物质并不直接接触。
如前所述，硬性物质120可以是金属物体，硬性物质120可能会和硬性物质120附件的器件(例如，中框、屏幕等)上形成电容效应，从而影响天线效果。因此，可选地，硬性物质120为金属物体，硬性物质120贴合屏幕110的表面和/或贴合振动器130的表面涂覆有绝缘层。这样，通过在硬性物质120的表面涂覆有绝缘层，可以尽量避免硬性物质120和硬性物质120附件的器件(例如，屏幕110)形成电容效应，从而尽量保证天线效果。
振动器130在振动过程中会发热，若振动器的发热部分靠近屏幕侧，较多的热量可能会损坏屏幕110，因此，可选地，硬性物质120的导热系数大于预设值。
其中，该预设值可以是数值，也可以是一个数值范围。例如，若硬性物质的材料是钢，该预设值可以是15瓦/(米·摄氏度)。
导热系数较好的硬性物质120的导热性能较好，可以通过导热性能较好的硬性物质120快速传递振动器130产生的热量使得屏幕110的保护层中的铜箔将热量均散开，减缓了由于振动器130的发热导致的屏幕110的损坏的现象。
振动器130
振动器130是屏幕发声设备的激励器，通过振动器130的振动，可以实现屏幕110的振动。振动器130可以是任何形式的振动器，本申请实施例不做任何限定，例如，线性振动器或压电陶瓷振动器。
示例性地，以图4为例，对本申请实施例的一种可能的振动器做简单说明。
振动器130可以是磁性器件，磁性器件可以是磁铁，也可以是具有磁性的电路，此处不做任何限定，所有可以产生磁场或具有磁性的器件都可以称为磁性器件。如图4所示，振动器由第一磁性器件131和第二磁性器件132组成，两个磁性器件之间具有间隙，可以通过将第二磁性器件132与其他部件102连接使得第二磁性器件132固定不动，按照一定频率改变第一磁性器件131或第二磁性器件132的极性，使得第一磁性器件131和第二磁性器件132产生同性相吸和异性相斥的效果，例如，保持第一磁性器件131的极性不变，不断改变第二磁性器件132的极性，或者，保持第二磁性器件132的极性不变，不断改变第一磁性器件131的极性，利用磁性器件之间同性相吸和异性相斥的原理，使得第一磁性器件131与第二磁性器件132极性相同时，第一磁性器件131朝着屏幕110侧移动，以顶起屏幕110，在第一磁性器件131与第二磁性器件132极性相反的情况下，第一磁性器件132朝着远离屏幕110侧移动，以恢复屏幕110的位置，这样，周而复始，第一磁性器件131不断上下移动，从而带动屏幕110上下移动，以实现屏幕110的振动。其中，部件102可以是配置在屏幕发声设备中的任何可以与振动器连接的部件，例如，图5所示的后盖和中框，图10所示的支撑装置等，下文做详细说明，此处不做任何限定。
中框140
中框140设置在屏幕110下方，用于支撑屏幕发声设备的其他内部器件，同时增加系统刚度。在本申请实施例中，振动器130作为屏幕发声设备的内部器件，可以和中框140 有多种位置关系，下面，从减少设备的厚度以及提高振动效果的角度考虑，结合附图，对中框140和振动器130的位置关系做说明。
为了减少设备在z方向上的尺寸，参考图5和图6，中框140中设置有第一孔1410，振动器130容纳在第一孔1410中。在这种情况中，振动器130在中框140远离屏幕110的一侧伸出第一孔1410。进一步地，为了更好地减少设备在z方向上的尺寸，参考图6和图7，可以在中框140中设置第二凹槽142，以容纳硬性物质120。
同理，为了减少设备在z方向上的尺寸，参考图6和图8，中框140中设置有第一凹槽1411，振动器130容纳在第一凹槽1411中。进一步地，为了更好地减少设备在z方向上的尺寸，参考图6和图9，可以在中框140中设置第二凹槽142，以容纳硬性物质120。
可以理解，相比于在中框140中设置凹槽(例如，第一凹槽)的结构，在中框140设置孔(例如，第一孔)的结构更能减少设备在厚度方向的尺寸。
在中框140上设置容纳硬性物质的凹槽的情况下，为了尽可能保持中框140对屏幕以及器件的支撑作用，可选地，硬性物质120在屏幕110的表面的投影的面积小于或等于屏幕110的表面的面积一半。
从提高振动效果的角度考虑，由于可以上下振动的支撑120接触到中框140可能产生较大的噪音，影响振动效果，因此，需要尽可能使得硬性物质120不接触中框140，参考图9，可选地，在屏幕110的厚度方向上，硬性物质120与中框140朝向硬性物质120的表面之间具有间隙101。其中，图9所示为图7所示的局部区域A的示意性结构图。
应理解，在中框140上设置的第一孔或第一凹槽(例如，第一凹槽或第二凹槽)的形状可以是各种形状，并不限于图6所示的圆形孔或圆形凹槽，例如，孔或凹槽可以是方形或各种不规则图形，只要能容纳振动器即可，此处不做任何限定。同理，在中框140上设置的第二凹槽可以是各种形状的凹槽，并不限于图6所示的方形凹槽，只要能容纳硬性物质即可，此处不做任何限定。
应理解，一般情况下，在中框140具有第一孔或第一凹槽的情况中，由于硬性物质120的面积大于振动器130的面积，为了减少设备的厚度，可选地，可以在中框140设置容纳硬性物质120的第二凹槽。进一步地，为了提高振动效果，安装过程中，可以专门为第一中框140与硬性物质120预留第一间隙，尽量避免硬性物质120接触中框140。
可选地，第一间隙在z方向上的尺寸为0.2毫米。
应理解，振动器中的侧面的至少部分区域与中框之间具有一定间隙，便于振动器可以上下振动，其中，振动器的侧面可以是振动器除垂直于屏幕的厚度方向以外的面。例如，参考图5至图9，振动器的侧面的整个区域与中框具有间隙，无接触。再例如，振动器的侧面远离硬性物质的区域可以与中框接触，靠近硬性物质的区域可以与中框具有间隙，无接触。
支撑装置170
对于在中框140设置容纳振动器140的第一孔的结构来说，为了能够较好地支撑且固定振动器140，可选地，参考图10，屏幕发声设备还包括与中框140远离110屏幕的一侧固定连接的支撑装置170，振动器130在中框140远离屏幕110的一侧伸出第一孔1140的表面与支撑装置170的表面接触。示例性地，可以通过螺钉、焊接以及铆钉等任何可以固定多个部件的结构将支撑装置170固定在中框140上，本申请实施例不做任何限定。
支撑装置170可以是各种结构的装置。可选地，参考图11，图11左边的图中，支撑 装置170可以包括具有开口的筒状结构171和向外伸出的固定端部172，振动器130放置在该筒状结构171，固定端部172与中框140固定；在图11右边的图中，支撑装置170也可以包括片状结构171和向外伸出的固定端部172，可以通过粘性材料将振动器130贴合在片状结构171上，固定端部172与中框140固定。
如前所述，振动器130可以是图4所示的振动器，在这种结构的振动器中，第一磁性器件131的上表面与硬性物质120的下表面贴合，第一磁性器件131和第二磁性器件132之间存在间隙，第二磁性器件132的下表面与支撑装置170的表面贴合，通过支撑装置170将第二磁性器件132固定，通过同性相吸以及异性相斥的特性尽可能使得所有能量推动第一磁性器件131上下振动以通过硬性物质120带动屏幕110振动，这样，可以有效地提高振动效果，提高听音效果。
需要说明的是，作为一种可能的变形方式，也可以将中框140设计为包括支撑装置170的结构，即，将支撑装置170和中框140作为一个整体结构，本申请实施例不做限定。
上述描述的都是在中框140中设置凹槽或孔以减少设备的厚度的结构，作为示例而非限定，若不考虑设备的厚度，参考图12，可以在中框140和硬性物质120之间设置振动器130，振动器130的上表面和下表面分别于硬性物质120和中框140贴合。
粘性层150
在本申请实施例中，可以采用粘性物质(例如，胶)将中框140和其他部件(例如，屏幕)贴合在一起，为了便于描述，可以将由粘性物质形成的结构记为粘性层150，具体地，继续参考图5至图12以及图13，屏幕110的下表面的周边区域与中框140的表面通过粘性层150贴合。
为了提高屏幕的振动效果，可选地，继续参考图13，粘性层150包括第一区域151(例如，图13中的区域151-1和区域151-2)和第二区域152，第一区域151靠近硬性物质120，第二区域152为粘性层150除第一区域151以外的至少部分区域，第一区域151在第一方向上的尺寸小于第二区域152在第一方向上的尺寸，第一方向为由粘性层150的外侧垂直指向粘性层150的内侧的方向，第一方向平行于屏幕110的表面。其中，粘性层150除第一区域151以外的至少部分区域表示粘性层150除第一区域151以外的部分区域或全部区域，示例性地，图13中仅示出了全部区域的情况。图13的右边的图是图13左边的图中关于局部区域B的示意性结构图，第一方向即为图13所示的y方向或x方向。
从图13的右边的图可以看出，当中框140和屏幕110通过粘性层150沿着x方向粘合时，第一方向为y方向，靠近硬性物质120的粘性层(例如，区域151-1)在y方向上的尺寸小于远离硬性物质120的粘性层(例如，第二区域152)在y方向上的尺寸，当中框140和屏幕110通过粘性层150沿着y方向粘合时，第一方向为x方向，靠近硬性物质120的粘性层(例如，区域151-2)在x方向上的尺寸小于远离硬性物质120的粘性层(例如，第二区域152)在x方向上的尺寸。
这样，通过将靠近硬性物质的粘性层在由粘性层的外侧垂直指向粘性层的内侧的方向的尺寸设置的较窄，在一定程度上可以减少中框和屏幕的结合力，减少针对硬性物质的约束，以提高硬性物质的振动位移，从而提高屏幕的振动效果，提高听音效果。
后盖160
后盖160用于保护设备，设置在中框140远离屏幕110的一侧，后盖160朝向中框140的表面的周边区域与中框140的表面贴合。参考图5至图12，可以采用粘性物质将后 盖160与中框141贴合在一起，在后盖160和中框140之间形成粘性层150。
从减少设备的厚度的角度考虑，本申请实施例也可以对后盖160做相关设计。参考图14，可选地，中框140设置有容纳振动器130的第一孔1410，振动器130在中框140远离屏幕110的一侧伸出第一孔1410，以及，在屏幕110的厚度方向上，从后盖160的端部起始的部分区域161与屏幕110之间的距离是渐变的，并且，后盖160的端部与屏幕110之间的距离最大，部分区域161上放置有振动器130。
其中，后盖160的端部可以是后盖160在x方向或y方向的端部，具体设计可以参考振动器130的位置，此处不做任何限定。在本申请实施例中，可以将后盖160分为区域161和区域162，区域161可以理解为后盖160有明显倾斜的区域，区域162可以理解为后盖160中相对较为平坦的区域，区域161上放置有从中框140的第一孔1410中伸出的振动器140。可以看出，通过将区域161作为倾斜部分以放置振动器130，可以不需要改变后盖160的其他区域与屏幕110之间的距离，能够减少设备的部分区域的厚度。
可选地，可以将振动器140的下表面与区域161的上表面贴合，将后盖140作为振动器130的支撑装置，用于支撑振动器130，并且，在振动器130是图4所示的由两个磁性器件构成的振动器时，也能有效地提高振动效果。
屏幕110
屏幕110可以是柔性屏或硬性屏，此处不做任何限定。
在本申请实施例中，从减少设备的厚度的角度考虑，关于屏幕110的相关设计，可以有以下可能的实现方式。
参考图15，可选地，屏幕110的保护层111中设置有第三凹槽或第二孔，第三凹槽或第二孔容纳硬性物质120。其中，屏幕110的保护层可以包括例如铜箔层或泡棉层等对屏幕110的器件层112起到保护作用的至少一个层。
这样，通过在屏幕110的保护层111中设置槽或孔，在不影响屏幕110的功能的情况下，可以容纳硬性物质120，可以减少设备的厚度。
参考图16，可选地，硬性物质120设置有容纳振动器130的第四凹槽，屏幕110的保护层111中的第三凹槽或第二孔容纳第四凹槽121，硬性物质120除第四凹槽121以外的区域122贴合在屏幕110的下方。
其中，垂直于屏幕110的厚度方向，第四凹槽121与屏幕110相对的两个表面贴合，硬性物质120除第四凹槽121以外的区域与屏幕1110相对的两个表面贴合。
这样，通过将硬性物质120设置为具有能够容纳振动器130的凹槽121的结构，将该凹槽121容纳于屏幕110的凹槽或孔中，利用屏幕110的保护层以及硬性物质120在设备的厚度方向的空间补偿振动器130占用的设备的厚度方向的空间，可以有效地减少设备在厚度方向上的尺寸。
一般情况下，导热系数较大的硬性物质的材质较软，为了保证硬性物质的强度，可以设计厚度较大的硬性物质，进一步，为了减少设备的厚度，可以设计例如图15所示的设备，即，将硬性物质容纳于屏幕的保护层中，但是，这样可能会存在一些问题，振动器产生的热量不能从屏幕的保护层中的铜箔中散开。因此，通过将硬性物质设置为具有能够容纳振动器的凹槽的结构，将该凹槽容纳于屏幕的凹槽或孔中，使得硬性物质除第四凹槽以外的区域贴合在屏幕的下方，可以通过硬性物质贴合在屏幕下方的除凹槽以外的区域将热量从屏幕的保护层中的铜箔中散开，既减少了设备的厚度，也增加了散热效果。
上述，对本申请实施例的主要部件做了详细说明，其中，各个部件的结构可以结合设计，也可以单独设计，本申请实施例不做任何限定。例如，参考图17，可以同时在中框上设置容纳振动器和硬性物质的凹槽或孔和在屏幕中设置容纳硬性物质的凹槽或孔。再例如，参考图18，可以同时在中框上设置容纳振动器和硬性物质的凹槽或孔和在后盖上设置倾斜区域。再例如，可以同时在屏幕电路板上设置容纳硬性物质的凹槽或孔和在中框上设置容纳硬性物质和振动器的凹槽或孔。
以下，综合上述部件，对屏幕发声设备的其他设计做说明。
在本申请实施例中，硬性物质120和振动器130可以放置在设备中的任何位置，只要不影响其他器件的正常工作即可。
一般情况下，为了满足用户的使用习惯，可选地，屏幕发声设备包括摄像头，硬性物质120和振动器130设置在靠近摄像头的位置。
一般情况下，摄像头会设置在屏幕在xy平面的上半区域和下半区域，假设，将设置摄像头的区域记为上半区域，则振动器130也会设置在上半区域。
因此，通过将硬性物质和振动器设置在靠近摄像头的位置，可以满足用户的使用习惯。
参考图5至图12，屏幕发声设置还包括贴合在屏幕110下方的屏幕电路板180，一般情况下，屏幕电路板180会设置在屏幕110的下半区域。作为一种可选的方式，硬性物质120和振动器130可以设置在靠近屏幕电路板180的位置。
下面，对硬性物质120和振动器130设置在靠近屏幕电路板180的位置的结构做详细说明。
在一种可能的实现方式中，参考图19，振动器130和硬性物质120在屏幕110的表面的投影与屏幕电路板180在屏幕110表面的投影不重合。
也就是说，在z方向上，振动器130和硬性物质120这两个部件与屏幕电路板180都无堆叠，一方面，在一定程度上，可以减少设备的厚度，另一方面，尽可能避免了由于振动器和硬性物质的振动可能引起的损坏屏幕电路板的问题，再一方面，尽可能避免了由于器件的堆叠而影响硬性物质和振动器的振动效果的问题。
在另一种可能的实现方式中，屏幕发声设备还包括设置在屏幕110和振动器130之间的屏幕电路板180，振动器130通过硬性物质120和屏幕电路板180贴合在屏幕110上，以及，屏幕电路板180在屏幕110的表面的投影与振动器130和硬性物质120在屏幕110的表面的投影至少部分重合。
其中，至少部分重合表示部分重合和全部重合，全部重合可以表示屏幕电路板180在屏幕110的表面的投影包围振动器130和硬性物质120在屏幕110的表面的投影，也可以表示屏幕电路板180在屏幕110的表面的投影与振动器130或硬性物质120在屏幕110的表面的投影完全重合。也就是说，与第一种设计方式刚好相反，在z方向上，振动器130和硬性物质120这两个部件与屏幕电路板180都堆叠，在这种结构中，屏幕电路板180设置在屏幕110和振动器130之间，振动器130通过硬性物质120和屏幕电路板180与屏幕110贴合。
因此，通过使得振动器和硬性物质都与屏幕电路板堆叠，在设备内部的空间有限的情况下，可以在满足使用需求。
下面，结合图20至图22，对在z方向上振动器130和硬性物质120都与屏幕电路板180堆叠的结构做说明。
参考图20，可选地，硬性物质120贴合在屏幕电路板180远离屏幕110的一侧。
其中，屏幕电路板180远离屏幕110的一侧表示屏幕电路板180的下表面，硬性物质120的上表面与屏幕电路板180的下表面贴合。
可选地，硬性物质120与屏幕电路板180的非器件区贴合，以避免由于硬性物质120的振动而损坏屏幕电路板180的器件。
参考图21，可选地，硬性物质120贴合在屏幕110和屏幕电路板180之间。
也就是说，硬性物质120的上表面与屏幕110贴合，硬性物质120的下表面与振动器130贴合。
可选地，硬性物质120与屏幕电路板180的非器件区贴合，以避免由于硬性物质120的振动而损坏屏幕电路板180的器件。
参考图22，屏幕电路板180的非器件区设置有第三孔，第三孔容纳硬性物质120。
在该结构中，可以先在屏幕电路板180中设置第三孔，在第三孔以外的区域设置器件以及走线。
图22所示的第三孔与硬性物质和振动器的位置关系仅为示例性说明，例如，若屏幕电路板180在z方向上的尺寸大于硬性物质120在z方向上的尺寸，硬性物质120完全伸入屏幕电路板180中，也可以将振动器130的一部分也伸入第三孔中。
需要说明的是，在硬性物质120和振动器130都与屏幕电路板280在z方向上堆叠的结构中，硬性物质120和振动器130与中框140、后盖160、粘性层150等其他部件的位置关系和连接关系都可以参考上文图2至图18对应的实施例中这几个部件的位置关系和连接关系，本申请实施例不做任何限定，具体描述可以参考上文的相关描述，为了简洁，不再赘述。例如，参考图23，硬性物质120、振动器130与中框140、支撑装置170的位置关系和连接关系可以对应图10中这几个部件的关系。
在本申请实施例中，屏幕发声设备可以包括多个振动器和多个硬性物质，一个振动器对应一个硬性物质，每个振动器和对应的硬性物质的位置关系和连接关系都可以参考上述实施例，以及，每个振动器和对应的硬性物质与其他器件(例如，屏幕、中框、后盖、支撑装置等)的位置关系和连接关系都可以参考上述实施例。例如，参考图24，可以在设备沿着y方向的中心线的两侧分别设置一个硬性物质120和振动器130。其中，每个硬性物质120和振动器130的设计以及硬性物质120和振动器130与其他部件(例如，中框140、后盖160、支撑装置170等)的设计都可以参考图1至图22对应的实施例的设计，本申请实施例不做任何限定。
需要指出的是，在屏幕发声设备包括多个硬性物质和多个振动器的结构中，在结构空间有限的情况下，可以将一部分硬性物质和振动器设置在靠近屏幕电路板的位置。继续参考图24，若将中心线的一侧的区域记为设备的上半区域，将中心线的另一侧的区域记为设备的下半区域，一个硬性物质120和振动器130设置在上半区域，一个硬性物质120和振动器130设置在下半区域，假设，屏幕电路板180位于下半区域，硬性物质120和振动器130不可避免地靠近屏幕电路板180，可以参考图19至图22对应的实施例设置硬性物质120、振动器130和屏幕电路板180之间的位置关系和连接关系，参考图2至图18中硬性物质120、振动器130与中框140、粘性层150、后盖160和支撑装置170等部件的位置关系和连接关系设置这几个部件的关系。
以上，结合图1至图24，对本申请实施例的屏幕发声设备做了详细说明，下面，结 合图25至图30，对本申请实施例的另一屏幕发声设备做详细说明。其中，图25至图30对应的屏幕发声设备与图1至图24的最大区别在于没有硬性物质。
参考图25和图26，屏幕发声设备200包括屏幕210，贴合在屏幕210下方的振动器230，设置在屏幕210下方的中框240，中框240设置有容纳振动器230的孔或凹槽，振动器230带动屏幕210沿垂直于屏幕210的表面的方向振动。其中，图25所示的是在中框240中设置孔的结构，图26所示的是在中框240中设置凹槽的结构。
这样，通过在屏幕下方设置振动器，相比于将振动器贴合在中框的结构，由于不需要振动中框带动屏幕振动，可以增加振动位移、减少能量损耗以及减少了后盖的振动，可以提高振动效果；并且，通过在中框中设置能够容纳振动器的孔或凹槽，可以有效地减少设备的厚度。
为了能够较好地支撑且固定振动器240，参考图27，可选地，中框240设置有孔，振动器230在中框240远离屏幕210的一侧伸出孔，以及，
屏幕发声设备还包括与中框240远离屏幕210的一侧固定连接的支撑装置270，振动器240伸出孔的表面与支撑装置270的表面接触。
其中，关于振动器和支撑装置的具体描述可以参考上文的相关描述，为了简洁，不再赘述。
继续参考图25至27以及图13，为了提高屏幕的振动效果，可选地，屏幕210的下表面的周边区域与中框240的表面通过粘性层250贴合，粘性层250包括第一区域和第二区域，第一区域靠近振动器230，第二区域为粘性层250除第一区域以外的至少部分区域，第一区域在第一方向上的尺寸小于第二区域在第一方向上的尺寸，第一方向为由粘性层250的外侧垂直指向粘性层250的内侧的方向，第一方向平行于屏幕210的表面。
其中，关于粘性层的具体描述可以参考上文的相关描述，粘性层250的第一区域可以对应上文中粘性层150的第一区域251，粘性层250的第二区域可以对应上文中粘性层150的第二区域252，为了简洁，不再赘述。
为了减少设备的厚度，可选地，屏幕发声设备还包括设置在中框240远离屏幕210的一侧的后盖，后盖朝向中框240的表面的周边区域与中框240的表面贴合，中框240设置有容纳振动器230的孔，振动器230在中框240远离屏幕210的一侧伸出孔，以及，在屏幕210的厚度方向上，从后盖的端部起始的部分区域与屏幕210之间的距离是渐变的，并且，后盖的端部与屏幕20之间的距离最大，部分区域上放置有振动器23。
其中，后盖可以上文图14对应的后盖160，后盖的部分区域可以对应图14对应的后盖160的部分区域161，关于后盖、振动器和中框之间的关系的具体描述可以参考上文的相关描述，为了简洁，不再赘述。
为了减少设备的厚度，参考图28，可选地，屏幕210的保护层212中设置有凹槽或孔，保护层212中的凹槽或孔容纳振动器230。其中，屏幕210的保护层可以包括例如铜箔层或泡棉层等对屏幕210的器件层212起到保护作用的至少一个层。
在本申请实施例中，振动器230可以放置在设备中的任何位置，只要不影响其他器件的正常工作即可。
可选地，屏幕发声设备包括摄像头，振动器230设置在靠近摄像头的位置。
其中，关于摄像头和振动器的关系的具体描述可以参考上文的相关描述，为了简洁，此处不再赘述。
继续参考图25至图27，屏幕发声设置还包括贴合在屏幕210下方的屏幕电路板280，作为一种可选的方式，振动器230也可以设置在靠近屏幕电路板280的位置。
下面，对硬性物质220和振动器230设置在靠近屏幕电路板280的位置的结构做详细说明。
在一种可能的实现方式中，继续参考图19，屏幕发声设备还包括贴合在屏幕210下方的屏幕电路板280，振动器230在屏幕210的表面的投影与屏幕电路板280在屏幕210表面的投影不重合。
也就是说，在z方向上，振动器230与屏幕电路板280都无堆叠，一方面，在一定程度上，可以减少设备的厚度，另一方面，减少了由于振动器的振动可能引起的损坏屏幕电路板的问题，再一方面，减少了由于器件的堆叠而影响振动器的振动效果的问题
其中，图19中的振动器、屏幕、屏幕电路板都可以类比于这里的振动器230、屏幕210和屏幕电路板280。
在另一种可能的实现方式中，屏幕发声设备还包括设置在屏幕210和振动器230之间的屏幕电路板280，振动器230通过屏幕电路280板贴合在屏幕210上，以及，振动器230在屏幕210的表面的投影与屏幕电路板280在屏幕210的表面的投影至少部分重合。
也就是说，与第一种设计方式刚好相反，在z方向上，振动器230与屏幕电路板280堆叠设置，其中，至少部分重合表示部分重合和全部重合，全部重合可以表示屏幕电路板280在屏幕210的表面的投影包围振动器230在屏幕210的表面的投影，也可以表示屏幕电路板280在屏幕210的表面的投影与振动器230在屏幕210的表面的投影完全重合。在这种结构中，屏幕电路板280设置在屏幕210和振动器230之间，振动器230通过屏幕电路板280与屏幕210贴合。
因此，通过使得振动器与屏幕电路板都堆叠，在设备内部的空间有限的情况下，可以在满足使用需求。
下面，结合图29至图30，对在z方向上振动器230与屏幕电路板280堆叠的结构做说明。
参考图29，可选地，振动器230贴合在屏幕电路板280远离屏幕210的一侧。
其中，屏幕电路板280远离屏幕210的一侧表示屏幕电路板280的下表面，振动器230的上表面与屏幕电路板280的下表面贴合。
可选地，振动器230与屏幕电路板280的非器件区贴合，以避免由于振动器230的振动而损坏屏幕电路板280的器件。
参考图30，可选地，屏幕电路板280的非器件区设置有容纳振动器230的孔。
在该结构中，可以先在屏幕电路板280中设置孔，在孔以外的区域设置器件以及走线。
需要说明的是，在振动器与屏幕电路板在z方向上堆叠的结构中，振动器与中框、后盖、粘性层等其他部件的位置关系和连接关系都可以参考上文关于这几个部件的位置关系和连接关系，本申请实施例不做任何限定，具体描述可以参考上文的相关描述，为了简洁，不再赘述。
同理，屏幕发声设备可以包括多个振动器，每个振动器与其他器件(例如，屏幕、中框、后盖、支撑装置等)的位置关系和连接关系都可以参考上述实施例。例如，可以在设备沿着y方向的中心线的两侧分别设置一个振动器。其中，振动器的设计以及振动器与其他部件(例如，屏幕、中框、后盖、支撑装置等)的设计都可以参考图25至图30对应的 实施例的设计，本申请实施例不做任何限定。
需要指出的是，在屏幕发声设备包括多个振动器的结构中，在结构空间有限的情况下，可以将一部分振动器设置在靠近屏幕电路板的位置。假设，屏幕发声设备包括两个振动器，若将中心线的一侧的区域记为设备的上半区域，将中心线的另一侧的区域记为设备的下半区域，一个振动器设置在上半区域，另一个振动器设置在下半区域，假设，屏幕电路板位于下半区域，振动器不可避免地靠近屏幕电路板，可以参考图29至图30对应的实施例设置振动器和屏幕电路板之间的位置关系和连接关系，参考图25至图28中振动器与中框、粘性层、后盖和支撑装置等部件的位置关系和连接关系设置这几个部件的关系。
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，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，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 (26)

  1. 一种屏幕发声设备，其特征在于，所述屏幕发声设备包括：
    屏幕、硬性物质和振动器，其中，
    所述硬性物质设置在所述屏幕和所述振动器之间，所述振动器通过所述硬性物质贴合在所述屏幕上，所述振动器通过所述硬性物质带动所述屏幕沿垂直于所述屏幕的表面的方向振动，所述硬性物质的杨氏模量大于预设值，所述硬性物质在所述屏幕的表面的投影的面积大于所述振动器在所述屏幕的表面的投影的面积且小于所述屏幕的表面的面积。
  2. 根据权利要求1所述的屏幕发声设备，其特征在于，所述屏幕发声设备还包括设置在所述屏幕下方的中框，所述中框设置有第一孔或第一凹槽，所述第一孔或所述第一凹槽容纳所述振动器。
  3. 根据权利要求2所述的屏幕发声设备，其特征在于，在所述屏幕的厚度方向上，所述硬性物质与所述中框朝向所述硬性物质的表面之间具有间隙。
  4. 根据权利要求2或3所述的屏幕发声设备，其特征在于，所述中框还设置有第二凹槽，所述第二凹槽容纳所述硬性物质。
  5. 根据权利要求2至4中任一项所述的屏幕发声设备，其特征在于，所述中框设置有所述第一孔，所述振动器在所述中框远离所述屏幕的一侧伸出所述第一孔，以及，
    所述屏幕发声设备还包括与所述中框远离所述屏幕的一侧固定连接的支撑装置，所述振动器伸出所述第一孔的表面与所述支撑装置的表面接触。
  6. 根据权利要求1至5中任一项所述的屏幕发声设备，其特征在于，所述硬性物质在所述屏幕的表面的投影的面积小于或等于所述屏幕的表面的面积一半。
  7. 根据权利要求2至6中任一项所述的屏幕发声设备，其特征在于，
    所述屏幕的下表面的周边区域与所述中框的表面通过粘性层贴合，所述粘性层包括第一区域和第二区域，所述第一区域靠近所述硬性物质，所述第二区域为所述粘性层除所述第一区域以外的至少部分区域，所述第一区域在第一方向上的尺寸小于所述第二区域在所述第一方向上的尺寸，所述第一方向为由所述粘性层的外侧垂直指向所述粘性层的内侧的方向，所述第一方向平行于所述屏幕的表面。
  8. 根据权利要求2至7中任一项所述的屏幕发声设备，其特征在于，所述屏幕发声设备还包括设置在所述中框远离所述屏幕的一侧的后盖，所述后盖朝向所述中框的表面的周边区域与所述中框的表面贴合，所述中框设置有容纳所述振动器的第一孔，所述振动器在所述中框远离所述屏幕的一侧伸出所述第一孔，以及，
    在所述屏幕的厚度方向上，从所述后盖的端部起始的部分区域与所述屏幕之间的距离是渐变的，并且，所述后盖的端部与所述屏幕之间的距离最大，所述部分区域上放置有所述振动器。
  9. 根据权利要求1至8中任一项所述的屏幕发声设备，其特征在于，所述硬性物质除所述硬性物质与所述振动器贴合的区域以外的区域设置有n个孔，n为正整数。
  10. 根据权利要求1至9中任一项所述的屏幕发声设备，其特征在于，所述硬性物质为金属物体，所述硬性物质贴合所述屏幕的表面和/或贴合所述振动器的表面涂覆有绝缘层。
  11. 根据权利要求1至10中任一项所述的屏幕发声设备，其特征在于，所述硬性物质的导热系数大于预设值。
  12. 根据权利要求1至11中任一项所述的屏幕发声设备，其特征在于，所述屏幕的保护层中设置有第三凹槽或第二孔，所述第三凹槽或第二孔容纳所述硬性物质。
  13. 根据权利要求12所述的屏幕发声设备，其特征在于，所述硬性物质设置有容纳所述振动器的第四凹槽，所述屏幕的保护层中的第三凹槽或第二孔容纳所述第四凹槽，所述硬性物质除所述第四凹槽以外的区域贴合在所述屏幕的下方。
  14. 根据权利要求1至13中任一项所述的屏幕发声设备，其特征在于，所述屏幕发声设备还包括摄像头，所述硬性物质和所述振动器设置在靠近所述摄像头的位置。
  15. 根据权利要求1至14中任一项所述的屏幕发声设备，其特征在于，所述屏幕发声设备还包括贴合在所述屏幕下方的屏幕电路板，以及，
    所述振动器和所述硬性物质在所述屏幕的表面的投影与所述屏幕电路板在所述屏幕的表面的投影不重合。
  16. 根据权利要求1至14中任一项所述的屏幕发声设备，其特征在于，所述屏幕发声设备还包括设置在所述屏幕和所述振动器之间的屏幕电路板，所述振动器通过所述硬性物质和所述屏幕电路板贴合在所述屏幕上，以及，
    所述屏幕电路板在所述屏幕的表面的投影与所述振动器和所述硬性物质在所述屏幕的表面的投影至少部分重合。
  17. 根据权利要求16所述的屏幕发声设备，其特征在于，
    所述硬性物质贴合在所述屏幕电路板远离所述屏幕的一侧；或，
    所述硬性物质贴合在所述屏幕和所述屏幕电路板之间；或，
    所述屏幕电路板的非器件区设置有第三孔，第三孔容纳所述硬性物质。
  18. 一种屏幕发声设备，其特征在于，所述屏幕发声设备包括：
    屏幕；
    贴合在所述屏幕下方的振动器；
    设置在所述屏幕下方的中框，所述中框设置有容纳所述振动器的孔或凹槽，所述振动器带动所述屏幕沿垂直于所述屏幕的表面的方向振动。
  19. 根据权利要求18所述的屏幕发声设备，其特征在于，所述中框设置有所述孔，所述振动器在所述中框远离所述屏幕的一侧伸出所述孔，以及，
    所述屏幕发声设备还包括与所述中框远离所述屏幕的一侧固定连接的支撑装置，所述振动器伸出所述孔的表面与所述支撑装置的表面接触。
  20. 根据权利要求18或19所述的屏幕发声设备，其特征在于，
    所述屏幕的下表面的周边区域与所述中框的表面通过粘性层贴合，所述粘性层包括第一区域和第二区域，所述第一区域靠近所述振动器，所述第二区域为所述粘性层除所述第一区域以外的至少部分区域，所述第一区域在第一方向上的尺寸小于所述第二区域在所述第一方向上的尺寸，所述第一方向为由所述粘性层的外侧垂直指向所述粘性层的内侧的方向，所述第一方向平行于所述屏幕的表面。
  21. 根据权利要求18至20中任一项所述的屏幕发声设备，其特征在于，所述屏幕发声设备还包括设置在所述中框远离所述屏幕的一侧的后盖，所述后盖朝向所述中框的表面的周边区域与所述中框的表面贴合，所述中框设置有容纳所述振动器的孔，所述振动器在 所述中框远离所述屏幕的一侧伸出所述孔，以及，
    在所述屏幕的厚度方向上，从所述后盖的端部起始的部分区域与所述屏幕之间的距离是渐变的，并且，所述后盖的端部与所述屏幕之间的距离最大，所述部分区域上放置有所述振动器。
  22. 根据权利要求18至21中任一项所述的屏幕发声设备，其特征在于，所述屏幕的保护层中设置有凹槽或孔，所述保护层中的凹槽或孔容纳所述振动器。
  23. 根据权利要求18至22中任一项所述的屏幕发声设备，其特征在于，所述屏幕发声设备还包括摄像头，所述振动器设置在靠近所述摄像头的位置。
  24. 根据权利要求18至23中任一项所述的屏幕发声设备，其特征在于，所述屏幕发声设备还包括贴合在所述屏幕下方的屏幕电路板，以及，
    所述振动器在所述屏幕的表面的投影与所述屏幕电路板在所述屏幕的表面的投影不重合。
  25. 根据权利要求18至23中任一项所述的屏幕发声设备，其特征在于，所述屏幕发声设备还包括设置在所述屏幕和所述振动器之间的屏幕电路板，所述振动器通过所述屏幕电路板贴合在所述屏幕上，以及，
    所述屏幕电路板在所述屏幕的表面的投影与所述振动器在所述屏幕的表面的投影至少部分重合。
  26. 根据权利要求25所述的屏幕发声设备，其特征在于，
    所述振动器贴合在所述屏幕电路板远离所述屏幕的一侧；或，
    所述屏幕电路板的非器件区设置有容纳所述振动器的孔。
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