KR20100129525A - Speaker unit and display apparatus therewith - Google Patents

Speaker unit and display apparatus therewith Download PDF

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Publication number
KR20100129525A
KR20100129525A KR1020090048124A KR20090048124A KR20100129525A KR 20100129525 A KR20100129525 A KR 20100129525A KR 1020090048124 A KR1020090048124 A KR 1020090048124A KR 20090048124 A KR20090048124 A KR 20090048124A KR 20100129525 A KR20100129525 A KR 20100129525A
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KR
South Korea
Prior art keywords
vibration
unit
driving unit
coil
force
Prior art date
Application number
KR1020090048124A
Other languages
Korean (ko)
Inventor
박종하
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020090048124A priority Critical patent/KR20100129525A/en
Publication of KR20100129525A publication Critical patent/KR20100129525A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/642—Disposition of sound reproducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE: A speaker unit and a display apparatus including the same are provided to prevent the vibration of a magnetic part due to reaction force by applying first vibrating force to a vibrating plate and second vibration force to the opposite direction of the first vibrating plate. CONSTITUTION: A vibrating plate(421) generates vibration and emits sound due to the vibration to one direction. One part of a driving part(43) is in connection with the vibrating plate. The driving part generates first vibrating force with respect to the vibrating plate according to a sound signal. A vibration damping part(44) is installed to the other side of the driving part. The vibration damping part generates second vibrating force to the opposite direction of the first vibration force.

Description

Speaker unit and display apparatus having same {Speaker unit and display apparatus therewith}

The present embodiment relates to a speaker unit and a display device having the same.

In general, a display device is a device on which an image is displayed. Recently, a number of flat panel display apparatuses capable of being shaped as a two-dimensional display apparatus have been released.

The display device includes a display module for displaying an image, a front cabinet and a rear cabinet for protecting the display module, and a speaker provided in a space formed by the front cabinet and the rear cabinet to generate sound.

In recent years, as the volume of the display device is reduced, an internal structure of the display device is disposed adjacent to a speaker, and noise caused by the vibration is generated as vibration by the sound of the speaker is transmitted to the internal structure. have.

An object of the present embodiment is to propose a speaker unit and a display device having the same, in which vibration generated in the speaker is transmitted to a structure of the cabinet or display device to prevent noise from being generated.

Speaker unit according to an aspect of the present embodiment generates a vibration, the diaphragm so that the sound by the vibration is emitted in one direction; One side is connected to the diaphragm, the driving unit for generating the first vibration force by alternating in one direction and the other direction with respect to the diaphragm in accordance with the input sound signal to generate the vibration in the diaphragm; And a vibration damping part provided on the other side of the driving part and generating a second vibration force in a direction opposite to the direction in which the first vibration force is generated, to attenuate the vibration of the driving part generated by the first vibration force. It includes.

According to one or more exemplary embodiments, a display device includes: a cabinet forming an appearance and protecting a display module; A speaker unit provided on at least one side of the cabinet, the speaker unit emitting sound according to an acoustic signal, wherein the speaker unit generates a vibration to cause the sound to be emitted in one direction by the vibration; One side is connected to the diaphragm, the driving unit for generating the first vibration force by alternating in one direction and the other direction with respect to the diaphragm in accordance with the sound signal to generate the vibration in the diaphragm; And a vibration damping part provided on the other side of the driving part and generating a second vibration force in a direction opposite to the direction in which the first vibration force is generated, to attenuate the vibration of the driving part generated by the first vibration force. It includes.

According to the proposed embodiment, a second vibration force acting in a direction opposite to the first vibration force transmitted to the diaphragm is provided, and the first reaction force acting on the magnetic part by the first vibration force is the second vibration force. As offset by the second reaction force by the, there is an advantage that the vibration of the magnetic portion due to the reaction force can be prevented.

As the vibration of the speaker unit is prevented, the sound quality of an electronic device such as a display device is increased as an example in which the speaker unit is mounted.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to such embodiments, and the spirit of the present invention may be proposed differently by the addition, change, deletion, etc. of the components constituting the embodiments, but this also applies to the spirit of the present invention. It is included.

1 is a view showing a state in which the speaker unit of the display device according to the first embodiment of the present invention is projected to the outside, Figure 2 is an exploded perspective view of the display device of FIG.

1 and 2, the display device 1 according to the present exemplary embodiment includes a display module 30 displaying an image and a front cabinet 10 that protects the display module 30 and forms the front and rear surfaces thereof. And a rear cabinet 20 and a speaker unit 40 for generating sound.

The display module 30 includes an image display unit 31 on which an image is displayed. For example, a liquid crystal display module (LCD module), a plasma display panel module (PDP module), It may be provided as a flat panel display module, such as a light emitting diode module (hereinafter referred to as an LED module) or an organic light emitting diode module (hereinafter referred to as an OLED module). In addition, the display module 30 may be accommodated in a space formed by the front cabinet 10 and the rear cabinet 20.

In the front cabinet 10, an opening 11 is formed to allow an image displayed on the image display unit 31 to be viewed outside of the display apparatus 1. In this embodiment, the opening 11 is described as being formed in the front cabinet 10, the front cabinet 10 is formed of a light-transmissive material, for example, a glass material or a transparent resin material, the front cabinet 10 A separate opening 11 is not formed, and the front cabinet 10 itself may be configured to transmit an image.

On the other hand, the speaker unit 40 according to the present embodiment is fixed to the lower side of the space in which the display module 30 is accommodated, that is, the inner side of the lower frame 22 of the rear cabinet 20, It emits sound downward. The lower frame 22 is bent relative to the rear cabinet 20 to form the bottom of the display apparatus 1.

In this embodiment, the speaker unit 40 is described as being arranged to direct the bottom portion of the display device 1, but the speaker unit 40 is positioned at any position in the internal space of the display device 1, that is, facing outside. It is also possible that the configuration is provided in the upper and left and right side portions, or the speaker unit 40 is provided outside the display device (1).

Hereinafter, the configuration of the speaker unit 40 will be described in detail.

3 is a view showing the bottom of the speaker unit according to the first embodiment of the present invention, Figure 4 is a view showing the side of the speaker unit according to the first embodiment of the present invention.

3 and 4, the speaker unit 40 forms an outer shape of the speaker unit 40 and has a unit body 410 open at one side thereof, and is provided at one open side of the unit body 410 and has a sound. A sound emitting unit 420 is emitted.

The unit body 410 may be formed of, for example, a metal material. The unit body 410 is recessed based on one side of the opened unit body 410, and the driving unit 43 (see FIG. 5) and the vibration damping unit 44 ( 5) and the speaker frame 411 having the magnetic portion 45 (see FIG. 5) and bent on both sides of the frame 411 to fix the unit body 410 to the lower frame 22 Fixing bracket 412 for the device.

In addition, the sound dissipation unit 420 is provided with a vibration force from the driving unit 43 to generate a vibration, and through the diaphragm 421 and the gap formed in the vibration plate 421 so that the sound due to the vibration is emitted in one direction. Cap 422 for preventing foreign matter from entering the interior of the unit body 410, and the edge portion 423 for supporting the diaphragm 421 so that the vibration of the diaphragm 421 can be made smoothly.

The diaphragm 421 is vibrated by the vibration force of the driving unit 43, and compresses and fluctuates air around the diaphragm 421 to form sound waves. In this case, the diaphragm may be formed in a larger area than the driving unit 43 so as to efficiently compress and fluctuate air, and may be formed in a conical shape having, for example, a linear or parabolic cross section.

In addition, a cap 422 is provided at a central side of the diaphragm 421 to prevent the inflow of foreign matter, and an edge portion 423 is provided at an outer edge of the diaphragm 421 to the unit body 410. 421).

Hereinafter, the configuration of the driving unit 43, the vibration damping unit 44, and the magnetic unit 45 to generate sound in accordance with an external signal will be described in detail.

FIG. 5 is an enlarged view of a portion B cut away along the A-A diagram in the speaker unit of FIG. 4.

Referring to FIG. 5, the speaker unit 40 according to the present embodiment alternately generates the vibration force in one direction and the other direction to generate a vibration force and transmits it to the diaphragm 421, which is generated by the driver 43. Vibration damping unit 44 for generating a vibration force in the opposite direction of the vibration force, and a magnetic portion 45 for providing a magnetic force to generate a vibration force in the drive unit 43 and the vibration damping unit 44 according to an external signal; The terminal unit 48 further transmits a signal to the driver 43 and the vibration damping unit 44. At this time, the vibration force generated by the driving unit 43 is referred to as the first vibration force, and the vibration force generated in the direction opposite to the first vibration force in the vibration damping unit 44 is referred to as the second vibration force.

In more detail, the driving unit 43 may include a driving unit side coil 431 and a driving unit side bobbin 432 surrounded by the outer circumferential surface of the magnetic unit 45, and an acoustic signal of the speaker unit 40 input to the terminal unit 48. Driver side damper for supporting the drive unit input line 433 to be transmitted to the side coil 431, the drive unit side coil 431 and the drive unit side bobbin 432 of the drive unit 43 to be stably vibrated in the vertical direction ( 434).

The driving unit side damper 434 may be formed of, for example, a member to which a resin material is applied to cotton or synthetic fibers, and a plurality of wrinkles may be formed. One side of the driving unit side damper 434 is fixed to the driving unit side bobbin 432, and the other side is fixed to the unit body 410.

That is, one side of the outer circumferential surface of the drive side bobbin 432 is fixed to the diaphragm 412 and the other side of the outer circumferential surface is fixed to the drive side damper 434, so that the drive side bobbin 432 does not shake in the left and right directions and is stable in the vertical direction. Can be vibrated.

The drive side bobbin 432 is surrounded by the outer circumferential surface of the magnetic portion 45 in a state spaced apart from the outer circumferential surface of the magnetic portion 45 by a small distance, and the drive side coil 431 is one direction on the outer circumferential surface of the drive side bobbin 432. It is fixed in a wound state. The upper end of the driving unit side bobbin 432 is fixed to one end of the diaphragm 421, and the other side of the driving unit side bobbin 432 is fixed to one side of the driving unit side damper 434.

On the other hand, the vibration damping portion 44 is a damping portion side coil 441 and the damping side side bobbin 442 and the terminal portion 48 surrounded by the outer peripheral surface of the magnetic portion 45 in a state spaced downward from the driving portion 43 a predetermined distance. A first input for supporting the attenuation part input line 443 and the attenuation part coil 441 and the attenuation part bobbin 442 to vibrate up and down in order to transmit the attenuation signal inputted to the attenuation part coil 441. And second damping portion side dampers (444, 445).

The first and second damping part side dampers 444 and 445 are fixed to the damping part side bobbin 442 with a predetermined distance spaced apart from each other in the vertical direction.

The vibration damping unit 44 differs from the driving unit 43 only in that the damper 44 includes a plurality of dampers. Since the other components are the same as those of the driving unit 43, detailed description of the configuration of the vibration damping unit 44 will be omitted.

The magnetic part 45 includes driving part side first and second magnets 451 and 452 surrounding the driving part coils and bobbins 431 and 432 of the driving part 43 to provide magnetic force to the driving part coils and bobbins 431 and 432. Attenuation part side coils and bobbins 441 and 442 of the attenuation part 44 are enclosed to provide a magnetic force to the attenuation part side coils and bobbins 441 and 442, and a driving part side first and second magnets 451 and 452; And first and second plates 454 and 455 provided between the driver side second magnet 452 and the attenuation side magnet 453, respectively.

One end of the magnetic part 45 is located below the cap 422, the other end may be fixed to the frame 411.

In more detail, the driving part side first and second magnets 451 and 452 and the attenuation side side magnet 453 may be provided as permanent magnets, and are disposed to face each other with the same polarity. In this embodiment, for example, the S pole of the drive side first magnet 451 and the S pole of the drive side second magnet 452 are disposed to face each other, and the N pole of the drive side second magnet 452 is attenuated. It is arrange | positioned so that the N pole of the side magnet 453 may mutually face.

That is, the same polarities of the plurality of magnets 451, 452, 453 may be disposed to face each other, so that the strength of the magnetic force provided to the driving unit 43 and the attenuating unit 44 may be maximized.

In addition, the first and second plates 454 and 455 respectively fix the adjacent magnets 451, 452 and 453 to each other by using an adhesive member, and a magnetic field formed by the magnetic force formed in the magnets 451, 452 and 453 is smoothly formed. It may be provided in a metal material to make it possible.

In the present exemplary embodiment, the speaker unit 40 is described as being provided in an internal magnetic type in which the driving unit side coil 441 and the attenuation unit side coil 451 are surrounded on the outer circumferential surface of the magnetic unit 45. The magnetic part 45 is also provided in the form of an external magnetic type that is surrounded by the outer peripheral surfaces of the driving unit side coil 441 and the attenuation unit side coil 451, and the external magnetic type speaker unit 40 is also It is included in the thought.

Hereinafter, operations of the driving unit 43 and the vibration damping unit 44 will be described in detail.

6 and 7 are views showing a configuration in which the vibration is reduced according to the operation of the speaker unit in the speaker unit according to the first embodiment of the present invention.

First, referring to FIG. 6, first, when an acoustic signal in one direction is input to the driving unit 43 through the terminal unit, current flows in one direction to the driving unit coil 431 in one direction on the outer circumferential surface of the magnetic unit 45. do. In a state in which a current flows in the driving unit coil 431 in one direction, a magnetic field formed around the driving unit coil 431 and the driving unit bobbin 432 is formed in one direction, and the magnetic field is referred to as a first magnetic field. .

Therefore, a Lorentz force, that is, a first vibration force P1, which pushes up the driver side coil 431 and the driver side bobbin 432 upwards due to the flow of the current and the magnetic field is generated. At this time, the first vibration force P1 acts on the magnetic part 45 in a direction opposite to the first vibration force P1, that is, a first reaction force downward.

On the other hand, around the damping part side coil 431 and the damping part side bobbin 432, a second magnetic field formed in the direction opposite to the first magnetic field is formed by the arrangement of the magnetic parts 45.

Accordingly, the attenuation-side coil 441 is wound in the same direction as the driving-side coil 431, and the attenuation signal in the same direction as the acoustic signal is input to attenuate in the same direction as the current flowing through the driving-side coil 431. When a current flows in the side coil 441, the second vibration force P2 pushing down the damper side coil 441 and the damper side bobbin 442 downward in a direction opposite to the first vibration force P1 is applied. Occurs. Similarly to the first vibration force P1, the second reaction force acts upward on the magnetic part 45 by the second vibration force P2.

At this time, the first reaction force and the second reaction force are similar magnitudes of force applied to the same magnetic portion 45, and the first reaction force and the second reaction force cancel each other as they act in opposite directions. .

Next, referring to FIG. 7, when the sound signal is inverted and input to the driving unit 43 after a predetermined time has elapsed, the first vibration acting downward on the driving side coil 431 and the driving side bobbin 432. The power P1 is acted on. Therefore, the vibration plate 411 connected to one side of the driving side bobbin 432 vibrates in one direction and the other direction by the first vibration force P1 acting in different directions due to a predetermined time difference. The sound is emitted by the vibration of the diaphragm 411.

On the other hand, when the sound signal is input to the driver 43 and the same attenuation signal as the sound signal is input to the vibration damping unit 44, the damping part side coil 441 and the attenuation part bobbin 442 are upwards. The second vibration force P2 for pushing up the damping part side coil 441 and the damping part side bobbin 442 upwards acts.

Then, the first reaction force upwards and the second reaction force downwards act on the magnetic part 45 by the first vibration force P1 downward and the second vibration force P2 upward. The first reaction force and the second reaction force cancel each other out.

That is, in the process of sound emitted by the driver 43, the first and second reaction forces acting on the magnetic part 45 cancel each other, and the occurrence of vibration of the magnetic part 45 due to the reaction force is suppressed. Can be prevented.

In this embodiment, the winding direction and the current application direction of the driver side coil 431 and the attenuation part coil 441 are formed in the same manner, and the direction of the magnetic field acting on the driver side coil 431 and the attenuation part coil 441 is Although it is described as being formed opposite to each other, the configuration in which the driving unit side coil 431 and the attenuation unit side coil 441 is provided in a state in which only one of the winding direction, the current application direction and the direction of the magnetic field is differently formed It will be included in the spirit of this embodiment.

That is, any one of the direction of the magnetic field provided to the driver side coil 431, the winding direction of the driver side coil 431, and the direction of the current flowing through the driver side coil is the attenuation part side coil 441. It may be formed in a direction different from the same kind of direction of the magnetic field provided to the winding direction of the coil attenuator side coil 441 and the current flowing through the coil attenuator side coil.

For example, the winding direction of the driver side coil 431 and the attenuation side coil 441 and the direction of the magnetic field provided to the eastern side coil 431 and the attenuation side coil 441 are formed in the same manner, and the attenuation side coil The attenuation signal input to the 441 is provided in an inverted state to the sound signal input to the driver side coil 431, and the magnetic portion 45 even when the directions of currents flowing through the respective coils are opposite to each other. The first and second reaction forces of can be offset.

According to the proposed embodiment, a second vibration force P2 acting in a direction opposite to the first vibration force P1 transmitted to the diaphragm 412 is provided, and the magnetic part is formed by the first vibration force P1. As the first reaction force applied to the 45 is canceled by the second reaction force by the second vibration force P2, the vibration of the magnetic part 45 due to the reaction force can be prevented.

In addition, as the vibration of the speaker unit 40 is prevented, an example in which the speaker unit 40 is mounted has an advantage in that an acoustic quality of an electronic device such as the display device 1 is increased.

8 is a view showing a state in which a part of the speaker unit is cut according to the second embodiment of the present invention.

This embodiment is the same as the first embodiment in other parts, except that the magnetic portion is formed of a single magnet. Therefore, hereinafter, only characteristic parts of the present embodiment will be described.

Referring to FIG. 8, the magnetic part 55 of the speaker unit 50 according to the present embodiment includes a magnet 551 and a plate 552 fixed to one end of the magnet 551.

On the outer circumferential surface of the magnet 551, the drive side coil 531 and the drive side bobbin 532 of the drive unit 53 and the attenuation side coil 541 and the attenuation side bobbin 542 of the vibration damping unit 54 are fixed to each other. Surrounded by distances. One side of the diaphragm 521 is fixed to one side of the driving unit side bobbin 532.

At this time, as the driving part side coil 531 and the attenuation part side coil 541 are provided around the same magnet 551, the magnetic field of the same direction is formed in the driving side side coil 531 and the attenuation part side coil 541. As shown in FIG.

Therefore, in order to prevent the vibration of the magnetic part 55 by generating the first and second vibration forces in different directions by the driving part coil 531 and the attenuation part coil 541, the driving part coil 531 and The current flowing in the same direction is provided when the attenuation part coil 541 is wound in opposite directions, or the driving part coil 531 and the attenuation part coil 541 are wound in the same direction, and in opposite directions. Flowing current can be provided.

According to the proposed embodiment, as the vibration of the magnetic part 55 is prevented by using a single magnet, the configuration of the speaker unit 50 is simplified, and manufacturing cost and processing time are reduced.

1 is a view showing a state in which the speaker unit of the display device according to the first embodiment of the present invention is projected to the outside.

FIG. 2 is an exploded perspective view of the display device of FIG. 1. FIG.

3 is a view showing the bottom of the speaker unit according to the first embodiment of the present invention.

4 is a side view of a speaker unit according to a first embodiment of the present invention;

5 is an enlarged view of a portion B cut away along the A-A diagram in the speaker unit of FIG.

6 and 7 are views showing a configuration in which the vibration is reduced according to the operation of the speaker unit in the speaker unit according to the first embodiment of the present invention.

8 is a view showing a state in which a part of the speaker unit is cut according to the second embodiment of the present invention.

Claims (12)

A vibration plate generating vibrations so that sound generated by the vibrations is emitted in one direction; One side is connected to the diaphragm, the driving unit for generating the first vibration force by alternating in one direction and the other direction with respect to the diaphragm in accordance with the input sound signal to generate the vibration in the diaphragm; And A vibration damping part provided on the other side of the driving part and generating a second vibration force in a direction opposite to the direction in which the first vibration force is generated, thereby attenuating the vibration of the driving part generated by the first vibration force; Speaker unit including. The method of claim 1, And a magnetic unit providing a magnetic field to the driving unit and the vibration damping unit. The method of claim 2, The magnetic part A driving unit side magnet which provides a magnetic force to the driving unit; And And a damping unit side magnet disposed to face the same polarity as that of any one side of the driving unit side magnet and providing a magnetic force to the vibration damping unit. The method of claim 3, wherein The driving unit side magnet includes a first driving unit side magnet and a second driving unit side magnet disposed to face the same polarity with each other. The method of claim 2, And a driving unit coil and an attenuator coil surrounding the magnet in a state where the driving unit and the vibration damping unit are separated from each other by a predetermined distance. The method of claim 1, The driving unit and the vibration damping unit are respectively provided in a magnetic field and include a driving unit coil and attenuator side coil, which are wound in one direction or another direction and current flows in one direction or the other direction, The direction of any one of the direction of the magnetic field provided to the driving unit coil, the winding direction of the driving unit coil, and the direction of the current flowing in the driving unit coil, And a speaker unit formed in a direction different from the same kind of direction of the magnetic field provided to the attenuator side coil, a winding direction of the attenuator side coil, and a direction of a current flowing through the attenuator side coil. The method of claim 1, And an attenuation signal for driving the vibration attenuation unit at the same time the sound signal is input to the driving unit. The method of claim 7, wherein And the attenuation signal is inverted with respect to the sound signal. The method of claim 1, The vibration damping unit is provided with a plurality of dampers for supporting the vibration damping portion spaced apart from each other so that the second vibration force by the vibration damping portion in a uniform direction. A cabinet forming an appearance and protecting the display module; Is provided on at least one side of the cabinet, including a speaker unit for emitting sound in accordance with the sound signal, The speaker unit, A vibration plate generating vibrations to allow the sound to be diverted in one direction by the vibrations; One side is connected to the diaphragm, the driving unit for generating the first vibration force by alternating in one direction and the other direction with respect to the diaphragm in accordance with the sound signal to generate the vibration in the diaphragm; And A vibration damping part provided on the other side of the driving part and generating a second vibration force in a direction opposite to the direction in which the first vibration force is generated, thereby attenuating the vibration of the driving part generated by the first vibration force; Display device including. The method of claim 10, The speaker unit is fixed to the inner surface of the cabinet is a display device for emitting the sound to the outside. The method of claim 10, The cabinet includes a lower frame bent to form a bottom surface, The speaker unit is provided on the lower frame side.
KR1020090048124A 2009-06-01 2009-06-01 Speaker unit and display apparatus therewith KR20100129525A (en)

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KR1020090048124A KR20100129525A (en) 2009-06-01 2009-06-01 Speaker unit and display apparatus therewith

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Application Number Priority Date Filing Date Title
KR1020090048124A KR20100129525A (en) 2009-06-01 2009-06-01 Speaker unit and display apparatus therewith

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KR20100129525A true KR20100129525A (en) 2010-12-09

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KR1020090048124A KR20100129525A (en) 2009-06-01 2009-06-01 Speaker unit and display apparatus therewith

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023090124A1 (en) * 2021-11-19 2023-05-25 フォスター電機株式会社 Speaker device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023090124A1 (en) * 2021-11-19 2023-05-25 フォスター電機株式会社 Speaker device

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