JP2011160319A - Acoustic device and display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent vibration of a speaker from being transmitted to a housing, and to prevent the speaker from dropping, in a device having a speaker mounted to a housing upward or downward. <P>SOLUTION: The acoustic device includes: a speaker part including a vertically-vibrating speaker ; a housing with the speaker part fixed thereto; and an elastic member sandwiched between the speaker part and the housing. In the acoustic device, the speaker part includes a columnar support post projecting downward; the housing comprises a first housing and a second housing; the elastic member has a shape formed with a groove in the horizontal direction and formed with a through-hole in the vertical direction; the support post is inserted in the through-hole; and the first housing and the second housing are fitted to the groove to sandwich the elastic member. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a technique for fixing a speaker to a housing.

  FIG. 8 is a perspective view showing an attachment state of the speaker unit 120 in the display device described in Patent Document 1. Speaker units 120 are attached to the left and right two positions on the lower back side of the panel unit 121. The speaker unit 120 is attached to the panel unit 121 with an angle 122 interposed. A rectangular flange 128 extends from the tray-shaped angle 122. Screw holes (not shown) for fixing the speaker unit 120 are provided at two locations above and below the collar portion 128. The speaker unit 120 includes an enclosure 123, a speaker 125, and a hook 126.

  An enclosure 123 that accommodates the speaker 125 is fixed to the back surface of the panel unit 121 via an angle 122. U-shaped hooks 126 having a U-shape in a plan view are provided in parallel with the extending direction of the flange portion 128 on the left and right in the middle of the side surface 124 of the enclosure 123. The hook 126 is provided at two places on the left side surface 124 and two places on the right side surface 124, for a total of four places. The hook 126 is locked to a dumbbell-shaped rubber bush (buffer member) 127 covered with rubber.

  The enclosure 123 is attached to the angle 122 by locking the rubber bush 127 to the hook 126. Then, the enclosure 123 is placed on the flange portion 128 of the angle 122 so that the central axis of the rubber bush 127 coincides with the center of the screw hole of the flange portion 128. Next, the screw (not shown) is passed through the rubber bush 127 from the back side (right side in the figure) to the front side (left side in the figure), and screwed into the screw hole on the flange portion 128 to The fixing of 122 onto the collar 128 is completed. Thereby, the vibration by the speaker 125 is absorbed by the rubber bush 127.

  A speaker 125 is attached downward near the center of the bottom surface 129 of the enclosure 123. The speaker 125 has a sound emitting surface that is substantially perpendicular to a plane related to the back surface of the panel unit 121, and the sound is output downward.

  Patent Document 2 discloses a structure in which a speaker device is attached to a bottom surface portion of a television receiver.

  FIG. 9 is a cross-sectional view of a television receiver described in Patent Document 2. The television receiver shown in FIG. 9 includes a front frame main body 100, a speaker device 103, a rear housing 101, and a coupler 102 that couples the front frame main body 100, the rear housing 101, and the speaker device 103. It is a television receiver provided. The front frame body 100 is provided with a U-shaped fitting portion, the rear housing 101 is provided with a fitting tongue piece, and the coupler 102 is fitted with the fitting portion of the front frame body 100. A clamping portion for clamping the mating tongue piece and the fitting tongue piece of the rear housing 101 and a screw hole for screwing the front portion of the speaker device 103 are provided.

  The speaker device 103 is provided with a screw hole that is screwed by a screw 104 through a screw hole of the connector 102. The speaker device 103 is fixed by screwing the speaker device 103 to the coupler 102 with the screws 104. The elastic body 105 is fitted in the screw hole. A speaker (not shown) is fixed upward in the speaker device 103.

JP 2008-211381 A Japanese Utility Model 6-17380

  In the display device described in Patent Document 1, the vibration of the speaker 125 cannot be sufficiently absorbed by the rubber bush 127, and is transmitted to the panel unit 121, and unpleasant noise such as chatter noise is likely to be generated. There are drawbacks.

  The reason why the rubber bush 127 cannot sufficiently absorb the vibration of the speaker 125 will be described with reference to FIG. FIG. 10 is a side sectional view of the flange 128, the rubber bush 127, the hook 126, and the screw 131. Since the speaker 125 is attached downward, when the speaker 125 is operated, the enclosure for housing the speaker 125 and the hook 126 protruding from the enclosure vibrate in the vertical direction 130 of the speaker. On the other hand, since the screw 131 screwed into the collar portion 128 does not vibrate, a compressive stress is applied to a portion 127a of the rubber bush 127 sandwiched between the hook 126 and the screw 131 from above and below. Rubber is a material with little volume change due to pressure. Even if compressive stress is applied to one part 127a of the rubber bush from above and below due to the vibration of the hook 126, there are other parts of the rubber bush 127 in the lateral direction, and the one part 127a of the rubber bush cannot be deformed. Therefore, the vibration cannot be sufficiently absorbed, and the vibration is transmitted to the collar portion 128.

  Further, in the case of the television receiver described in Patent Document 2, there is a drawback that the speaker device 103 is easily dropped downward. Since the speaker device 103 is pulled downward due to gravity, a force that is pulled in the vertical direction, that is, a force that loosens the screw 104 is always applied between the screw 104 and the speaker device 103. Since the speaker device 103 vibrates, the screw 104 also vibrates with the vibration of the speaker device 103. If a force is applied in the direction in which the screw 104 is loosened and vibration is applied, the screw 104 loosens little by little and may fall off over a long period of time.

  The present invention has been made in view of the above problems, and an object of the present invention is to suppress transmission of vibration of the speaker to the housing in an apparatus in which the speaker is attached to the housing upward or downward. Another object is to prevent the speakers from falling off.

  In order to solve the above-described problem, an acoustic device according to the present invention includes a speaker unit including a speaker, a casing to which the speaker unit is fixed, and an elastic member sandwiched between the speaker unit and the casing. And a second member that fixes the elastic member, wherein the speaker unit includes a columnar support column that protrudes downward, the housing includes a first member, and the elastic member extends in a horizontal direction. A groove is formed and a through hole is formed in the vertical direction, the support column is inserted into the through hole, the first member and the second member are fitted into the groove, and the elastic The member is clamped and fixed.

  Further, the protruding position of the support pillar is above the center of gravity of the speaker unit.

  In addition, the first member and the second member are provided with fixing means for fixing the first member and the second member adjacent to a portion where the elastic member is sandwiched.

  Moreover, the display device according to the present invention is a display device including the acoustic device according to the present invention, wherein the housing is a housing of the display device.

  According to the acoustic device of the present invention, the speaker can move upward or downward with respect to the housing, and the vibration of the speaker can be prevented from being transmitted to the housing.

  Moreover, the speaker does not fall off from the housing.

It is a disassembled perspective view of the audio equipment concerning this embodiment. It is a perspective view of the acoustic device of the present embodiment. It is sectional drawing which concerns on the audio equipment of this Embodiment. It is sectional drawing in the moment when the speaker part moved upwards by vibration. It is sectional drawing in the moment when the speaker part moved below by vibration. It is a typical perspective view which shows the assembly state of the display apparatus which concerns on a present Example. It is a typical perspective view which shows the assembly state of the display apparatus which concerns on a present Example. It is a perspective view which shows the display apparatus of a prior art. It is sectional drawing which shows the television receiver of a prior art. It is sectional drawing which shows the display apparatus of a prior art.

  Embodiments according to the present invention will be described below in detail with reference to the drawings.

  FIG. 1 shows an exploded perspective view of the acoustic device according to the present embodiment. The acoustic device according to the present embodiment includes a housing 1, a second member 2, a speaker unit 3, an elastic member 4, and a screw 5.

  The speaker unit 3 includes a speaker 31. The speaker 31 is fixed upward or downward to the speaker unit 3, and the speaker 31 vibrates up and down during its operation. Further, the speaker unit 3 has a flange 32 extending in a horizontal direction from a position above the center of gravity, and further, a support pillar 33 protrudes downward from the flange 32. A tip projection 34 is provided at the tip of the support column 33. The horizontal dimension of the tip protrusion 34 is larger than the dimension of the support column 33.

  The elastic member 4 is made of a material having elasticity such as rubber. On the outer periphery of the elastic member 4, a groove 42 is formed in the horizontal direction. A through hole 41 is formed in the vertical direction. The dimension of the through hole 41 is the same as or slightly smaller than the dimension of the support column 33.

  The housing 1 includes a first member 11 that supports the speaker unit 3. The tip of the first member 11 is a first fitting portion 12. The first fitting portion 12 is a portion that sandwiches the elastic member 4. A first boss 13 having a screw hole 14 is formed adjacent to the first fitting portion 12. The first boss 13 is a fixing unit that fixes the first member 11 and the second member 2.

  The second member 2 includes a second fitting portion 22. The second fitting portion 22 is a portion that holds the elastic member 4. A second boss 23 having a boss hole (not shown) provided at the center is formed adjacent to the second fitting portion 22. The second boss 23 is a fixing unit that fixes the first member 11 and the second member 2.

  Next, assembly according to the acoustic device of the present embodiment will be described. In the acoustic device of the present embodiment, first, the elastic member 4 is attached to the speaker unit 3. Specifically, the tip projection 34 and the support pillar 33 of the speaker unit 3 are inserted into the through hole 41 of the elastic member 4 from above, and the tip projection 34 is projected from below. Although the horizontal dimension of the tip protrusion 34 is larger than the through hole 41, the elastic member 4 is made of an elastic material, so that the through hole 41 can be expanded larger than the tip protrusion 34, and the through hole 41 can be passed. Can do. The cross-sectional shape of the through-hole 41 after the front-end protrusion 34 protrudes from the lower through-hole contracts to the cross-sectional shape of the support pillar 33, and the front-end protrusion 34 is locked and fixed to the lower surface of the elastic member 4.

  Next, the first fitting portion 12 and / or the second fitting portion 22 are fitted into the groove 42, and the elastic member 4 is sandwiched and positioned by the first member 11 and the second member 2.

  In order to fix the first member 11 and the second member 2, the screw 5 passes through a boss hole (not shown) of the second boss 23 and is screwed into the screw hole 14. As a result, the first boss 13 and the second boss 23 are fixed, and the first member 11 and the second member 2 are integrated.

  FIG. 2 is a perspective view of the acoustic device of the present embodiment. As shown in FIG. 2, the support pillar 33 (not shown) of the speaker unit 3 is inserted into the through hole 41 (not shown) of the elastic member 4, and the flange portion 32 is fixed on the elastic member 4. Then, the elastic member 4 is clamped in the horizontal direction by the first member 11 and the second member 2 integrated by a screw 5 (not shown), and the speaker unit 3 is fixed to the housing 1.

  FIG. 3 is a cross-sectional view in a plane including the axis of the support column 33 and the axis of the screw 5 according to the acoustic device of the present embodiment. The support column 33 protruding downward from the flange portion 32 of the speaker unit 3 is inserted into the through hole 41 of the elastic member 4. Thereby, the speaker part 3 and the elastic member 4 are fixed regarding a horizontal direction. Further, since the flange portion 32 having a horizontal dimension larger than the through hole 41 is provided above the elastic member 4, the speaker portion 3 is placed on the elastic member 4, and the speaker portion 3 is elastic. It does not fall off below the body 4. Further, since the tip projection 34 having a horizontal dimension larger than the through hole 41 is provided below the elastic member 4, the speaker unit 3 is not detached above the elastic member 4.

  Further, the first fitting portion 12 of the first member 11 and / or the second fitting portion 22 of the second member 2 are fitted into the groove 42 of the elastic member 4, and the first fitting portion 12 and the second fitting portion are fitted. By the joint portion 22, a casing composed of the first casing and the second casing sandwiches the elastic member 4 in the horizontal direction. Thereby, the elastic member 4 is fixed with respect to the housing in the horizontal direction. Further, in the state where the first member 11 and the second member 2 are united by assembly, the distance between the first fitting portion 12 and the second fitting portion 22 is the upper portion 43 and the lower portion 44 of the elastic member 4. It is smaller than the dimension in the clamping direction. Accordingly, the elastic member 4 is fixed in the vertical direction without being detached or dropped from the housing up or down.

  A clearance is provided to prevent direct contact between the speaker unit 3 and the housing even when the speaker unit 3 vibrates. Specifically, since the tip protrusion 34 of the speaker portion 3 projects below the elastic member 4, a first notch 15 is formed below the first fitting portion 12 in the first member 11. A second notch 25 is formed below the second fitting portion 22 of the two members 2, and the notch 15 and the space opened by the notch 25 function as the clearance.

  In the first member 11, a first boss 13 is formed adjacent to the lower side of the first notch 15. Similarly, in the second member 2, the second boss 23 is adjacent to the lower side of the second notch 25. Is formed. The direction of the axis of the first boss 13 and the direction of the axis of the second boss 23 are parallel to the direction in which the elastic member 4 is sandwiched between the first fitting portion 12 and the second fitting portion 22. The screw 5 passes through the boss hole 24 of the second boss 23 and is screwed with the screw hole 14 of the first boss. As a result, the first boss 13 and the second boss 23 are fixed, and the first member 11 The second member 2 is integrated.

  According to the acoustic device of the present embodiment, the speaker unit 3 is not directly in contact with the housing, and is fixed via the elastic member 4, so that vibration generated by the speaker 31 included in the speaker unit 3 is directly applied to the housing. There is no telling.

  FIG. 4 shows a cross-sectional view around the elastic member 4 at the moment when the speaker unit 3 is moved upward by vibration. As the speaker unit 3 moves upward, the flange 32, the support pillar 33, and the tip protrusion 34 move upward. Accordingly, the lower portion 44 of the elastic member sandwiched between the tip protrusion 34 and the first fitting portion 12 and / or the lower portion 44 of the elastic member sandwiched between the tip protrusion 34 and the second fitting portion 22 is crushed. Then, it contracts in the vertical direction and extends in the horizontal direction of the lower part 44. As a result, the speaker unit 3 can move upward with respect to the housing, and the vibration of the speaker unit 3 can be prevented from being transmitted to the housing. Further, the vibration energy of the speaker unit 3 is consumed for the deformation of the elastic member 4 to attenuate the vibration. Furthermore, since the deformed elastic member 4 tries to restore the original shape, the position of the speaker unit 3 can be maintained within a predetermined range.

  FIG. 5 shows a cross-sectional view around the elastic member 4 at the moment when the speaker unit 3 moves downward due to vibration. When the speaker unit 3 moves downward due to vibration, the speaker unit 3 is sandwiched between the upper part 43 of the elastic member sandwiched between the collar part 32 and the first fitting part 12 and / or the collar part 32 and the second fitting part 22. The upper portion 43 of the elastic member is crushed and contracts in the vertical direction, and extends in the horizontal direction of the lower portion 44. The effect is the same as when the speaker unit 3 is moved upward by vibration.

  According to the acoustic device of the present embodiment, the speaker unit 3 does not drop below the elastic body 4, and the elastic member 4 does not detach from or drop out of the casing. Part 3 does not fall out of the casing.

  Moreover, according to the acoustic device of the present embodiment, the first boss 13 and the second boss 23 are provided adjacent to the first fitting portion 12 and the second fitting portion 22, so that the first fitting is performed. The portion 12 and the second fitting portion 22 can be firmly fixed, and the fitting between the first fitting portion 12 and the second fitting portion 22 is shifted or distorted due to vibration of the speaker portion 3 or the like. The elastic member 4 can be securely held.

  In FIG. 1, the horizontal cross section of the support pillar 33, the through hole 41, and the groove 42 is described as a circle, but other shapes such as a rectangle and an oval may be used.

  In addition, in FIGS. 1 to 3, the first boss 13 and the second boss 23 are described below the first fitting portion 12 and the second fitting portion 22. The second boss 23 may be on the left and right or above the first fitting portion 12 and the second fitting portion 22.

  Note that, according to the acoustic device of the present embodiment, the position where the support pillar 33 protrudes is above the flange portion 32, that is, the center of gravity of the speaker portion 3, so that the speaker portion 3 is suspended by the flange portion 32. It is in the state. For this purpose, a force that rotates the speaker unit 3 with the flange part 32 as a fulcrum acts so that the center of gravity of the speaker part 3 comes below the flange part 32, and the position of the speaker part 3 can be further stabilized. . Thereby, the sound quality of the sound generated from the speaker unit 3 can be kept constant.

  2 and 3, the first member 11, the first fitting portion 12, the first boss 13, the second member 2, the second fitting portion 22, the second boss 23, the collar portion 32, and the support are shown. Although only one pillar 33, one elastic member 4, and one screw 5 are illustrated, one speaker unit 3 includes a plurality of support pillars 33 and a plurality of flange parts 32 related to the plurality of support pillars 33. Also good. In that case, the acoustic device of the present embodiment may include a plurality of elastic members 4 corresponding to the plurality of support columns 33, and the first member 11 and the second member 2 correspond to the plurality of elastic members 4. A plurality of first fitting portions 12 and a plurality of second fitting portions 22 may be provided. The first member 11 and the second member 2 include a plurality of first bosses 13 and a plurality of second bosses 23 corresponding to the plurality of first fitting portions 12 and the plurality of second fitting portions 22. It may be. In this case, the acoustic device according to the present embodiment includes a plurality of screws 5 corresponding to the plurality of first bosses 13 and the plurality of second bosses 23. The housing 1 may include a plurality of first members 11, and the acoustic device according to the present embodiment may include a plurality of second members 2.

  By fixing the single speaker unit 3 with a plurality of elastic members 4, the speaker unit 3 can be fixed more stably.

  Moreover, the display device according to the present embodiment is a display device including the acoustic device according to the present embodiment, and the housing may be a part of the display device. For example, the front cabinet (or panel unit) of the display device is the casing 1 including the first member 11, the back cabinet of the display device is the second member, and the speaker unit 3 including the speaker 31 is directed downward or upward. You may comprise as a display apparatus to arrange | position. As a result, the fixing means for fixing the speaker unit 3 can be used as a means for fixing the front cabinet (or panel unit) and the back cabinet, and the number of parts and assembly man-hours can be reduced and the display device can be used. Can contribute to weight reduction.

  FIG. 6 is a schematic perspective view showing an assembled state of the display device which is the acoustic device according to the present embodiment. The display device includes a front cabinet (front housing) 64, a back cabinet (rear housing) 62 including a second member, a panel portion 63 which is a first member inserted between the front cabinet 64 and the back cabinet 62, and The speaker unit 3 is included. In the following description, the display device is described as being a liquid crystal display, but may be another thin display such as a plasma display, an organic EL (electroluminescence) display, or a surface-conduction electron-emitter display (SED).

  A rectangular panel unit 63 that displays an image in front is a liquid crystal substrate, a holding frame that holds the liquid crystal substrate, an optical sheet that is disposed on the back surface of the liquid crystal substrate, and a plurality of fluorescent tubes that are disposed on the back surface of the optical sheet. The backlight holder 633 and the rectangular backlight shield 633 that covers the backlight holder (both not shown) are superposed. Electrical components 631 such as a circuit board and a power supply board are attached to the back surface of the backlight shield 633.

  The front cabinet 64 provided on the front surface of the display device has a rectangular opening having an area slightly smaller than the area of the panel unit 63 in a front view. A frame having an L-shaped cross section is formed so as to cover the four sides of the opening. Locking means (not shown) are provided at the four corners of the front cabinet 64, and the panel portion 63 is fixed to the front cabinet 64 with screws or the like.

  The back cabinet 62 has a rectangular shape in plan view and a dish shape having a predetermined depth so as to cover the speaker unit 3 and the electrical component 631 having a predetermined depth. The front surface of the back cabinet 62 has an opening having an area larger than the area of the panel portion 63 in a front view. The back cabinet 62 is attached to the front cabinet 64 with the panel portion 63 interposed therebetween. Thus, the speaker unit 3 is housed between the panel unit 63 and the back cabinet 62, and the panel unit 63 is housed between the back cabinet 62 and the front cabinet 64.

  The speaker unit 3 is sandwiched and fixed between the backlight shield 633 and the back cabinet 62 at the lower left and right portions of the display device of this embodiment. One flange portion 32 shown in FIG. 1 is provided on each of the left and right sides of the speaker portion 3, and a support pillar 33 projects downward from the flange portion 32. In addition, two first and second fitting portions 12 and first bosses 13 shown in FIG. Two second fitting portions 22 and two second bosses 23 shown in FIG. 1 are provided adjacent to each other at two positions on the left and right sides. And the speaker part 3 is clamped by the back cabinet 62 and the panel part 63 by the structure shown in FIG.

  The sound emitting surface of the speaker provided in the speaker unit 3 is attached so as to be substantially perpendicular to the plane related to the back surface of the backlight shield 633, and the sound from the speaker unit 3 is output downward.

  This embodiment relates to a form in which the speaker unit 3 is attached to the upper left and right two places on the rear surface of the panel unit 63.

  FIG. 7 is a schematic perspective view showing an assembled state of the display device according to the present embodiment. The speaker unit 3 is sandwiched and fixed between the backlight shield 633 and the back cabinet 62 at two locations on the upper left and right sides of the display device of this embodiment.

  The speaker unit 3 includes a speaker 31, a flange 32 (not shown), a support pillar 33 (not shown), a tip protrusion 34 (not shown), an enclosure 35, and a woofer duct 351. The speaker 31 is attached to the enclosure 35 upward so that sound is output upward. The sound emitting surface of the speaker 31 is attached so as to be substantially perpendicular to the plane related to the back surface of the panel portion 63.

  A slit 621, a frame 622, and a louver 623 are provided in the vicinity of the speaker 31 at the top of the back cabinet 62.

  The sound from the speaker 31 is output vertically above the sound emitting surface. The sound traveling toward the upper surface of the back cabinet 62 is reflected by the louver 623 through the slit 621. The sound reflected by the louver 623 is emitted toward the front of the panel unit 63. A woofer duct 351 protrudes from the upper surface of the enclosure 35. The protruding duct 351 bends 90 degrees toward the front of the panel portion 63 and extends a predetermined length from the rear toward the front. On the upper long side of the front cabinet 64, a woofer opening 644 is provided at a symmetrical position, and a tweeter opening 642 is provided at a symmetrical position outside these. A discharge hole may be formed between the woofer opening 644 and the tweeter opening 642.

  The panel portion 63 is attached to the front cabinet 64 so that the other end of the duct 351 coincides with the woofer opening 644. A tweeter 612 is attached to the inner wall of the upper long side of the front cabinet 64 at a symmetrical position. The sound is output from the tweeter 612 so that the sound is output from the tweeter opening 642. Audio from the tweeter 612 and the woofer is output from the tweeter opening 642 and the woofer opening 644 on the front upper side of the front cabinet 64, respectively.

  The speaker unit 3 is sandwiched and fixed between the backlight shield 633 and the back cabinet 62 at two locations on the upper left and right sides of the display device of this embodiment. One flange portion 32 shown in FIG. 1 is provided on each of the left and right sides of the speaker portion 3, and a support pillar 33 projects downward from the flange portion 32. In addition, the first fitting part 12 and the first boss 13 shown in FIG. Two second fitting portions 22 and second bosses 23 shown in FIG. 1 are provided adjacent to each other at two locations. And the speaker part 3 is clamped by the back cabinet 62 and the panel part 63 by the structure shown in FIG.

  The present embodiment is configured as described above, and other configurations and operations are the same as those of the first embodiment. Therefore, the corresponding parts are denoted by the same reference numerals, and detailed description thereof is omitted.

  In addition, the acoustic device according to the present embodiment can be applied to other applications as long as the device includes a speaker.

DESCRIPTION OF SYMBOLS 1 Housing | casing 2 2nd member 3 Speaker part 4 Elastic member 5 Screw 11 1st member 12 1st fitting part 13 1st boss 14 Screw hole 22 2nd fitting part 23 2nd boss 24 Boss hole 31 Speaker 32 collar part 33 Support pillar 34 Tip projection 35 Enclosure 41 Through hole 42 Groove 43 Upper part 44 Lower part 62 Back cabinet 63 Panel part 64 Front cabinet

Claims (4)

An acoustic device comprising: a speaker unit including a speaker; a casing to which the speaker unit is fixed; an elastic member sandwiched between the speaker unit and the casing; and a second member that fixes the elastic member. And
The speaker unit includes a columnar support column protruding downward,
The housing includes a first member,
The elastic member has a shape in which a groove is formed in a horizontal direction and a through hole is formed in a vertical direction,
The support pillar is inserted through the through hole,
The acoustic device, wherein the first member and the second member are fitted in the groove, and the elastic member is sandwiched and fixed.   The acoustic device according to claim 1, wherein a position where the support column protrudes is above a center of gravity of the speaker unit.   The sound according to claim 1, further comprising: a fixing unit that fixes the first member and the second member adjacent to a portion where the first member and the second member sandwich the elastic member. apparatus.   A display device comprising the acoustic device according to claim 1, wherein the housing is a housing of the display device.