CN112929799B - Vibration sounding assembly and display device - Google Patents

Vibration sounding assembly and display device Download PDF

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Publication number
CN112929799B
CN112929799B CN202110072844.7A CN202110072844A CN112929799B CN 112929799 B CN112929799 B CN 112929799B CN 202110072844 A CN202110072844 A CN 202110072844A CN 112929799 B CN112929799 B CN 112929799B
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circuit board
flexible circuit
branch
layer
vibration
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CN112929799A (en
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祝翠林
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • 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
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Structure Of Printed Boards (AREA)

Abstract

The application provides a vibration sound production subassembly and display device, this vibration sound production subassembly includes flexible circuit board and two at least oscillators, cover the strengthening layer through the trunk at flexible circuit board and the crossing part in branch, strengthen flexible circuit board at trunk and the crossing part's in branch intensity, improve the supporting capability of flexible circuit board to the oscillator, with this reduction because the deformation volume of the flexible circuit board that the weight of oscillator leads to, thereby it takes place cracked risk to walk the line in the branch of flexible circuit board and the crossing part of trunk, improve because the great problem that leads to the flexible circuit board to take place to become invalid of oscillator weight.

Description

Vibration sounding assembly and display device
Technical Field
The application relates to the technical field of display, in particular to a vibration sounding assembly and a display device.
Background
In the modern communication industry, the market demand of products such as mobile phones, televisions, flat panels, notebooks, digital cameras and the like is increasing, and various display devices are developing to a full screen. Among the flexible full-screen display technologies, the screen sounding technology is becoming the trend of the next generation of flexible full-screen display technology development.
At present, the structure of the sound emission technology of the flexible full-face screen adopts a plurality of sound emission vibrators to be attached to a signal transmission circuit board to form a sound emission assembly, and then the sound emission assembly is attached to a flexible display panel. The oscillator is ceramic material, and the weight of single oscillator is great, and signal transmission circuit board is traditional flexible printed circuit board (FPC), and FPC's material is softer. In the process of producing, testing or carrying the sound production assembly, the oscillator can droop and drive the flexible printed circuit board to deform, so that the condition that the inner wiring of the flexible printed circuit board is cracked or even broken is caused, the flexible printed circuit board is caused to fail, and the sound production assembly can be influenced to be attached to the display panel.
In conclusion, the conventional vibration sounding assembly has the problem that the flexible printed circuit board fails due to the fact that the vibrator is heavy. Therefore, it is necessary to provide a vibration sounding component and a display device to improve this drawback.
Disclosure of Invention
The embodiment of the application provides a vibration sound production assembly and a display device, and is used for solving the problem that the existing vibration sound production assembly fails due to the fact that the weight of a vibrator is large.
The embodiment of the application provides a vibration sound production subassembly, includes:
the flexible circuit board comprises a main body and at least two branches positioned on the side edge of the main body;
at least two vibrators connected to the corresponding branches; and
the reinforcing layer at least covers the intersection part of the trunk and the branches.
According to an embodiment of the application, the stiffening layer is located one side that the flexible circuit board kept away from the oscillator, perhaps with the oscillator is located same one side of flexible circuit board.
According to an embodiment of the application, the stiffening layer includes first stiffening layer and second stiffening layer, first stiffening layer with the oscillator is located same one side of flexible circuit board, the second stiffening layer is located flexible circuit board keeps away from one side of oscillator.
According to an embodiment of the application, the first strengthening layer covers the branch with the crossing part of trunk, the second strengthening layer covers at least the trunk with the crossing part of branch with branch.
According to an embodiment of the present application, the reinforcing layer includes an insulating tape.
According to an embodiment of the application, the strengthening layer is including the supporting layer and the pressure sensitive adhesive layer of range upon range of setting, the strengthening layer passes through pressure sensitive adhesive layer with the laminating of flexible circuit board.
According to an embodiment of the application, the supporting layer includes many strengthening ribs that are parallel to each other and set up at intervals, the strengthening rib with walk the line in the branch and be parallel to each other.
According to an embodiment of the present application, the support layer includes a plurality of reinforcing ribs arranged to cross each other.
According to an embodiment of the application, the material of the support layer comprises a metal or a thermoplastic polyester.
The embodiment of the application further provides a display device, which is characterized by comprising a display panel and the vibration sounding assembly, wherein the vibration sounding assembly is attached to one side of the display panel.
The beneficial effects of the embodiment of the application are as follows: the embodiment of the application provides a vibration sound production subassembly and display device, this vibration sound production subassembly includes flexible circuit board and two at least oscillators, flexible circuit board includes the trunk and is located two at least branches of trunk side, the oscillator with corresponding branch is connected, vibration sound production subassembly still includes the strengthening layer, the strengthening layer covers at least the trunk with the crossing part in branch, this application embodiment through at flexible circuit board trunk and the crossing part in branch cover the strengthening layer, strengthen flexible circuit board at trunk and the crossing part's in branch intensity, improve flexible circuit board's branch to the support ability of oscillator to this reduces the pendent volume of oscillator to reduce the deformation volume that brings for flexible circuit board because the weight of oscillator, thereby reduce the branch of flexible circuit board and walk the cracked risk of taking place for the trunk in the crossing part, improve because the great problem that leads to flexible circuit board to take place to become invalid of oscillator weight.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vibration sound production assembly provided in an embodiment of the present application;
fig. 2 is an exploded view of a vibration sound generating assembly according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a vibration sound generating assembly according to an embodiment of the present disclosure without a reinforcing layer;
fig. 4 is a side view of a first vibration and sound generating assembly provided by an embodiment of the present application;
FIG. 5 is a side view of a second vibration-producing assembly provided by an embodiment of the present application;
FIG. 6 is a side view of a third vibration and sound generating assembly provided in accordance with an embodiment of the present application;
FIG. 7 is a schematic structural diagram of a first stiffening layer according to an embodiment of the disclosure;
FIG. 8 is a schematic structural view of a second reinforcement provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a vibration sounding component and a display device, and the application is further described with reference to the accompanying drawings and specific embodiments.
The embodiment of the present application provides a vibration sound production subassembly, please refer to fig. 1 and fig. 2, fig. 1 is the structural schematic diagram of the vibration sound production subassembly that the embodiment of the present application provided, fig. 2 is the decomposition schematic diagram of the vibration sound production subassembly that the embodiment of the present application provided, the vibration takes place the subassembly and includes flexible circuit board 10 and two at least oscillators 11, flexible circuit board 10 includes trunk 101 and is located two at least branches 102 of trunk 101 side, oscillators 11 with corresponding branch 102 is connected, the vibration sound production subassembly still includes reinforcing layer 12, reinforcing layer 12 covers at least trunk 101 with the crossing part of branch 102.
In an embodiment, referring to fig. 1 and fig. 2, the flexible circuit board 10 includes a main portion 101 and two branches 102 located at side edges of the main portion 101, the two branches 102 are parallel to each other and spaced apart from each other, and have the same extending direction as the main portion 101, and a gold finger end 103 is disposed at a side of the main portion 101 opposite to the branch 102. Two sub-branches 1021 extend from the side of each branch 102, and the two sub-branches are also parallel to each other and spaced apart from each other, and perpendicular to the direction in which the branches 102 extend. The flexible circuit board 10 includes 4 vibrators, and each vibrator 11 is connected to a corresponding one of the sub-branches 1021. The reinforcing layer 12 covers not only the intersection of the main body 101 and the two branches 102, but also the intersection of the branches 102 and the sub-branches 1021.
In one embodiment, each of the sub-branches 1021 has two contacts, and each of the vibrators 11 can be electrically connected to a corresponding one of the sub-branches 1021 through the contacts. Each transducer 11 may be fixedly connected to a contact on a corresponding one of the sub-branches 1021 by soldering. Of course, in other embodiments, the vibrator may be fixed and electrically connected to the contact point on the corresponding one of the sub-branches 1021 by a conductive adhesive.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a vibration sound-generating component provided in the present application, where the vibration element 11 is made of ceramic, and a single branch 1021 and a single branch 102 are heavy, and cannot provide enough supporting force for the vibration element 11, so that the vibration element sags. When the vibrator 11 hangs down, a first portion a where the sub-branch 1021 intersects with the branch 102 and a second portion b where the branch 102 intersects with the main body 101 are deformed, and thus, the metal traces in the first portion a and the second portion b are prone to crack or even break. It can be understood that the first portion a and the second portion b of the flexible circuit board 10 are covered by the reinforcing layer 12, so that the strength of the first portion a and the second portion b can be enhanced, the supporting force for the vibrator 11 is improved, and thus the sagging amount of a single vibrator can be reduced, thereby reducing the deformation amount of the sub-branch 1021 connected with the vibrator and the branch 102, and further reducing the risk of cracking or breaking of the metal traces in the first portion a where the sub-branch 1021 intersects the branch 102 and the second portion b where the branch 102 intersects the main body 101.
Further, referring to fig. 1 to 3, the entire surface of the reinforcing layer 12 covers the second portion b where the branch 102 intersects with the main body 101, the first portion a where the branch 102 intersects with the sub-branch 1021, the branch 102 and the sub-branch 1021, and also covers a gap between two branches 102 and a gap between two adjacent sub-branches 1021. It can be understood that, by covering the whole surface of the reinforcing layer 12 on the intersection portion of the trunk 101 and the branches 102 and the sub-branches 1021, the tensile force of the vibrator 11 received by the branches 102 and the sub-branches 1021 can be uniformly dispersed into each portion of the reinforcing layer 12, so as to reduce the deformation amount of the single branch 102 or the single sub-branch 1021 caused by the tensile force of the vibrator, improve the integrity of the vibration sound-generating component, reduce the risk of cracks or fractures of the vibration sound-generating component during the production, test or transportation process, and reduce the difficulty of the attachment of the vibration sound-generating component to the display panel.
In another embodiment, the stiffening layer 12 may further include a plurality of independent sub-stiffening layers, and the stiffening layers respectively correspond to the second portion b of the main body 101 intersecting the branch 102 and the first portion a of the branch 102 intersecting the sub-branch 1021. The first portion a and the second portion b are individually reinforced by the plurality of mutually independent sub-reinforcing layers, and the strength of the intersection portion between each branch 102 and the main body 102 and the intersection portion between the branch 102 and the sub-branch 1021 can be enhanced, so as to achieve the technical effect of reducing the risk of cracking or breaking of the metal traces in the first portion a and the second portion b.
It should be noted that fig. 1 to fig. 3 only illustrate the vibration sound production assembly provided in the embodiment of the present application, and the number of the transducers 11 included in the vibration sound production assembly and the number of the branches 102 and the sub-branches 1021 included in the flexible circuit board in fig. 1 to fig. 3 do not represent the number of the transducers 11, the branches 102 and the sub-branches 1021 in practical application. The number of the transducers 11 included in the vibration and sound generating assembly, the number of the branches 102 included in the flexible printed circuit 10, and the number of the sub-branches 1021 on each branch 102 may be set according to actual conditions, and are not limited herein.
The stiffening layer 12 is located on a side of the flexible circuit board 10 away from the vibrator 11, or on the same side of the flexible circuit board 10 as the vibrator 11.
In an embodiment, please refer to fig. 2 and 4, fig. 4 is a side view of the first vibration and sound generating assembly provided in the embodiment of the present application, wherein the reinforcing layer 12 is located on a side of the flexible circuit board 10 away from the vibrator 11. Work as the strengthening layer 12 with the oscillator 11 is located respectively the both sides of flexible circuit board 10, is installing during the vibration sound production subassembly, only need with oscillator 11 and display panel's non-display panel one side laminating can, consequently need not to consider whether strengthening layer 12 can block oscillator 11 and flexible circuit board 10's laminating. It is understood that, in this case, the whole surface of the stiffening layer 12 may cover the second portion of the flexible circuit board 10 where the trunk 101 intersects with the branches 102, and the branches 102 and the sub-branches 1021.
Further, the area of the reinforcing layer 12 can be increased, so that the reinforcing layer 12 can cover one side surface of the vibrator 11 close to the flexible circuit board 10, and the vibrator 11 is bonded to the sub-branch 1021 of the flexible circuit board 10 through the reinforcing layer 12, so that the bonding stability between the vibrator 11 and the flexible circuit board 10 and the integrity of the vibration and sound production assembly can be further improved.
In an embodiment, referring to fig. 2 and 5, fig. 5 is a side view of a second vibration and sound generating component provided in the embodiment of the present application, where the stiffening layer 12 and the vibrator 11 are located on the same side of the flexible circuit board. It is understood that, in order to prevent the stiffening layer 12 from obstructing the attachment of the transducer 11 to the non-display surface side of the display panel, the stiffening layer 12 and the transducer 11 cannot be overlapped in a direction perpendicular to the flexible circuit board 10, so the stiffening layer 12 can cover the first portion a of the branch 102 intersecting the sub-branch 1021, the second portion b of the branch 102 intersecting the main body 101, and the branch 102 in a whole or in separate regions, but cannot cover the sub-branch 1021.
In an embodiment, referring to fig. 3 and fig. 6, fig. 6 is a side view of a third vibration and sound generation assembly provided in the present embodiment, where the reinforcing layer 12 includes a first reinforcing layer 121 and a second reinforcing layer 122, the first reinforcing layer 121 and the vibrator 11 are located on the same side of the flexible circuit board 10, and the second reinforcing layer 122 is located on a side of the flexible circuit board 10 away from the vibrator 11.
Further, the first reinforcing layer 121 covers a portion where the branch 102 intersects with the trunk 101, and the second reinforcing layer 122 covers at least a portion where the trunk 101 intersects with the branch 102 and the branch 102. Referring to fig. 3, fig. 6, and fig. 9, fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present disclosure, in which the first reinforcing layer 121 and the vibrator 11 are located on the same side of the flexible circuit board 10, the vibrator 11 is attached to the back plate 210 of the display panel 2 through the vibrator adhesive material 13, a heat dissipation film 215 is further attached to the back plate 210 of the display panel 2, and the heat dissipation film 215 is provided with an opening in a region where the vibrator adhesive material 13 is attached to the back plate 210, so as to facilitate attachment of the vibrator adhesive material 13 to the back plate 210. In order to prevent the first reinforcing layer 121 from obstructing the adhesion between the vibrator rubber 13 and the back plate 210, the first reinforcing layer 121 and the vibrator 11 are not overlapped in a direction perpendicular to the flexible circuit board 10, and the first reinforcing layer 121 may cover a second portion where the branch 102 intersects with the main body 101, the branch 102, and a portion where the branch 102 intersects with the sub-branch 1021, but may not cover an end of the sub-branch 1021 connected with the vibrator 11. The second reinforcing layer 122 and the vibrator 11 are respectively located at two sides of the flexible circuit board 10, which does not affect the adhesion between the vibrator 11 and the back plate, and the second reinforcing layer 122 may entirely cover the second portion b where the trunk 101 and the branch 102 intersect, the first portion a where the branch 102 and the sub-branch 1021 intersect, the branch 102, and the sub-branch 1021.
In other embodiments, if the area of the second stiffening layer 122 is large enough and the area of the transducer 11 exceeds the sub-branch 1021, the second stiffening layer 122 may cover a side surface of the transducer 11 close to the sub-branch 1021, so as to further enhance the stability of the connection between the transducer 11 and the sub-branch 1021 through the second stiffening layer 12.
In one embodiment, the reinforcing layer 12 includes an insulating tape. The insulating tape can enhance the strength of the second portion b where the branch 102 intersects with the main body 101 and the strength of the first portion a where the branch 102 intersects with the sub-branch 1021, and can further enhance the connection stability between the flexible circuit board 10 and the vibrator 11 when the reinforcing layer 12 has an area that can cover the surface of the vibrator 11 on the side close to the flexible circuit board 10. The insulating tape is a PET tape, and the color of the insulating tape can be black. In other embodiments, the insulating tape may also be a PI tape, and the color of the insulating tape includes, but is not limited to, black in the above embodiments.
In an embodiment, please refer to fig. 7, and fig. 7 is a schematic structural diagram of a first reinforcing layer provided in the embodiment of the present application, in which the reinforcing layer 12 includes a supporting layer 121 and a pressure sensitive adhesive layer 122, which are stacked, and the reinforcing layer 12 is attached to the flexible circuit board 10 through the pressure sensitive adhesive layer 122. The support layer 121 is made of a hard material, and is used for enhancing the strength of the first portion a of the flexible circuit board 10 where the branch 102 is connected to the sub-branch 1021 and the second portion b of the flexible circuit board where the branch 102 is connected to the main body 101.
In one embodiment, the support layer 121 is formed of a single layer of a hard material, which is copper. In other embodiments, the hard material forming the supporting layer 121 may also be other materials such as hard metal, stainless steel, or thermoplastic polyester. In other embodiments, the supporting layer 121 may also be an insulating tape or foam. The material of the support layer 121 may be selected according to practical situations, and is not limited herein.
In an embodiment, referring to fig. 3 and fig. 8, fig. 8 is a schematic structural view of a second reinforcement provided in the embodiment of the present application, and the supporting layer 121 may further include a plurality of reinforcing ribs 1211 disposed in parallel and at intervals, where the reinforcing ribs are parallel to the routing lines in the branches 102 or the sub-branches 1021. Because the reinforcing ribs are parallel to the traces in the branches 102 or the sub-branches 1021, when the vibrator 11 generates a downward pulling force on the branches 102 or the sub-branches 1021, the reinforcing ribs can share a part of the pulling force of the vibrator 11 and generate an upward supporting force on the branches 102 or the sub-branches 1021, so as to reinforce the flexible circuit board 10. In addition, the plurality of parallel reinforcing ribs arranged at intervals can also enhance the tear resistance of the flexible circuit board 10, and prevent the metal traces in the flexible circuit board 10 from being torn at the bent position, the intersection part of the branch 102 and the main body, and the intersection part of the branch 102 and the sub-branch 1021.
In an embodiment, the supporting layer 121 may further include a plurality of reinforcing ribs disposed to intersect with each other, and the grid structure formed by the intersecting reinforcing ribs may disperse a downward pulling force generated by the vibrator 11 on the branch 102 or the sub-branch 1021 to each reinforcing rib in the grid structure, and may also generate an upward supporting force on the branch 102 or the sub-branch 1021, so as to reinforce the flexible circuit board 10. In addition, the plurality of mutually crossed reinforcing ribs can also enhance the tear resistance of the flexible circuit board 10, and prevent the metal traces in the flexible circuit board 10 from being torn at the bent position, the intersection portion of the branch 102 and the main portion, and the intersection portion of the branch 102 and the sub-branch 1021.
Further, referring to fig. 7, the stiffening layer 12 further includes a base 123 located at the bottom of the support layer 121, and the structure of the support layer 121 is the same as that of the support layer 121 in the above embodiment, and is not repeated herein. The material of the substrate 123 may be foam, insulating tape, or thermoplastic polyester. The substrate 123 may further enhance the rigidity of the flexible circuit board 10, and may further cover the supporting layer 121 with the substrate 123. When the material of the support layer 121 is metal, the metal material in the support layer 121 can be prevented from being corroded by external moisture or oxygen, and the support layer 121 can be insulated from other circuit structures in the display panel, so that short circuit caused by contact between the support layer 121 and other circuit structures in the display panel is avoided.
Fig. 7 is a schematic diagram of the film structure of the stiffening layer 12 provided in the embodiment of the present application, and does not represent the actual number of the film layers of the stiffening layer 12. In practical applications, the film structure of the reinforcing layer 12 is not limited to the single-layer, double-layer or three-layer structure, and may also be a laminated structure with more films, and a plurality of supporting layers 121 may be stacked on each other or stacked at intervals inside the laminated structure. The film structure of the reinforcing layer 12 may be set according to actual conditions, and is not limited here.
The embodiment of the present application further provides a display device, please refer to fig. 9, fig. 9 is a schematic structural diagram of the display device provided by the embodiment of the present application, the display device includes a display panel 2 and a vibration sound generating assembly 1, the display panel 2 includes a back plate 210, a display layer 211, a polarizer 212 and a cover plate 213 which are sequentially stacked, the cover plate 213 is attached to the polarizer 212 through an optical adhesive layer 214, one side of the back plate 210, which is far away from the display layer 211, is further provided with a heat dissipation film 215, a plurality of openings are formed in the heat dissipation film 215, and each vibrator 11 is attached to the back plate 210 through a vibrator adhesive material and a corresponding opening.
The vibration sound production assembly 1 is attached to one side of the display panel 2, and the vibration sound production assembly 1 can be the vibration sound production assembly provided by the embodiment. The vibration generating assembly in the display device provided by the embodiment of the application can achieve the same technical effects as the vibration sounding assembly provided by the above embodiment, and details are not repeated here.
To sum up, this application embodiment provides a vibration sound production subassembly and display device, and this vibration sound production subassembly includes flexible circuit board and two at least oscillators, flexible circuit board includes the trunk and is located two at least branches of trunk side, the oscillator with the branch is connected, vibration sound production subassembly still includes the strengthening layer, the strengthening layer covers at least the trunk with the crossing part in branch, this application embodiment through cover the strengthening layer at flexible circuit board trunk and the crossing part in branch, the reinforcing flexible circuit board is at the trunk and the crossing part's in branch intensity, improves the branch of flexible circuit board to the support ability of oscillator to this reduces the pendant volume of oscillator, and reduces the deformation volume that brings for flexible circuit board because the weight of oscillator to reduce the branch of flexible circuit board and the crossing part of trunk in walk the cracked risk of line emergence, improve because oscillator weight greatly leads to the problem that flexible circuit board takes place to become invalid.
In summary, although the present application has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present application, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, therefore, the scope of the present application is defined by the appended claims.

Claims (10)

1. A vibration sound generating assembly, comprising:
the flexible circuit board comprises a main body and at least two branches positioned on the side edge of the main body;
at least two vibrators connected to the corresponding branches; and
the reinforcing layer at least covers the main part and the intersected part of the branches, and the whole surface of the reinforcing layer covers the main part and the intersected part of the branches and the branches.
2. A vibration sound generating package according to claim 1, wherein said stiffening layer is located on a side of said flexible circuit board remote from said vibrator.
3. A vibration sound production assembly according to claim 1, wherein the stiffening layer comprises a first stiffening layer and a second stiffening layer, the first stiffening layer and the vibrator being located on the same side of the flexible circuit board, the second stiffening layer being located on a side of the flexible circuit board remote from the vibrator.
4. A vibration sound-emitting assembly according to claim 3, wherein said first reinforcing layer covers a portion where said branch intersects said trunk, and said second reinforcing layer covers at least a portion where said trunk intersects said branch and said branch.
5. A vibration and sound assembly as claimed in claim 1, wherein said reinforcing layer comprises an insulating tape.
6. A vibration and sound production assembly according to claim 1, wherein the reinforcing layer comprises a support layer and a pressure sensitive adhesive layer which are stacked, and the reinforcing layer is attached to the flexible circuit board through the pressure sensitive adhesive layer.
7. A vibration and sound production assembly as claimed in claim 6, wherein said support layer includes a plurality of spaced apart parallel reinforcing ribs, said ribs being parallel to said tracks in said branches.
8. A vibration and sound assembly according to claim 6, wherein said support layer comprises a plurality of ribs arranged to cross each other.
9. A vibrating sound assembly as claimed in claim 6, wherein the material of the support layer comprises a metal or a thermoplastic polyester.
10. A display device comprising a display panel and the vibration sound generating assembly according to any one of claims 1 to 9, wherein the vibration sound generating assembly is attached to one side of the display panel.
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