JP2009232297A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device capable of generating stereo sounds and improving low-pitch sound quality without reducing display quality of video image on a display section. <P>SOLUTION: A liquid crystal television set 1 (display device) includes: a diaphragm 10 which is disposed in front of a liquid crystal module 20 for displaying a video image, configured to transmit therethrough the video image displayed on the liquid crystal module 20 and configured to be vibrated; exciters 33 and 34 disposed at the side of an arrow X1 direction and an arrow X2 direction in a horizontal direction of the diaphragm 10 and generating sounds from the diaphragm 10 by transferring vibration to the diaphragm 10; and a fixing member 40 disposed outside an area, within which a video image displayed, of the liquid crystal module 20 and fixing the diaphragm 10 to the vicinity of the center in the horizontal direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display device, and more particularly, to a display device including a vibration element and a diaphragm that generates sound by being vibrated by the vibration element.

  2. Description of the Related Art Conventionally, display devices including a vibration element and a diaphragm that generates sound by being vibrated by the vibration element are known (see, for example, Patent Documents 1 to 5).

  In the above-mentioned Patent Document 1, a diaphragm, two driving means (vibrating elements) that are arranged in the vicinity of both ends in the horizontal direction of the diaphragm, and generate sound by vibrating the diaphragm, and the respective drives There is disclosed a flat speaker provided with two rigid support portions which are provided in the vicinity of the means and are arranged inside the diaphragm in the horizontal direction. The rigid body support portion of the flat speaker is such that the vibration transmitted from the driving means arranged on one side to the diaphragm is closer to the center of the diaphragm than the position near the driving means (vibration element) where the rigid body support portion is arranged. It has a function to suppress transmission to the part side. Thereby, since it is possible to suppress the mixing of the vibrations transmitted to the diaphragm by each driving means, it is possible to generate stereo sound by one diaphragm.

  Patent Document 2 includes a display unit, two diaphragms connected by a flexible material near the center of the display unit, a magnet and a magnetic circuit, and each of the two diaphragms. An electronic device is disclosed that includes a vibration generating means for generating sound by vibrating the device. Thereby, since the vibration of one diaphragm is not transmitted to the other diaphragm, it becomes possible to generate stereo sound by the diaphragm.

  Further, in Patent Document 3, a vibration film (vibration plate) and a fret (vibration) that is provided near the center of the vibration film and suppresses transmission of vibration on one side of the vibration film to the other side of the vibration film. A planar speaker system including a suppressing member) and an exciter (vibration element) that is disposed on both sides of one side and the other side of the diaphragm and generates sound by transmitting vibration to the diaphragm is disclosed. ing.

  Further, in Patent Document 4 described above, a resonance plate (vibration plate) having a gap provided in the vicinity of the central portion in the horizontal direction, and arranged on both sides across the gap of the resonance plate, and transmitting vibration to the resonance plate A sound generation sheet including an electrostrictive element (vibration element) that generates sound is disclosed. In this sound generation sheet, it is possible to suppress the vibration from the electrostrictive element from being transmitted from one side of the resonance plate to the other side due to the gap of the resonance plate. Thereby, stereo sound can be generated by the resonance plate.

  Further, in Patent Document 5, an exciter (vibration element) is provided in each of the diaphragm having an opening in the center and the vicinity of the left and right ends of the diaphragm, and generates sound by transmitting vibration to the diaphragm. And a sound source image matching display.

JP 2004-343362 A JP 2003-244787 A Japanese Patent No. 3408476 JP-A-5-300591 JP 2007-267302 A

  However, in the flat speaker described in Patent Document 1, in order to suppress the vibration on one side of the diaphragm from being transmitted to the other side, near the driving means arranged near both ends of the diaphragm. A rigid support is disposed. For this reason, the area of the diaphragm that is vibrated by the driving means is only the area close to the end of the diaphragm from the end of the diaphragm to the portion where the rigid support portion is disposed. There is a disadvantage that the region to be vibrated becomes small. As a result, since it is difficult to increase the amplitude of vibration generated by the diaphragm, there is a problem that it is difficult to improve the sound quality of the bass.

  Further, in the electronic device described in Patent Document 2, in order to suppress the vibration on one side of the diaphragm from being transmitted to the other side, the two diaphragms are made of a flexible material near the center of the display unit. Need to be connected. For this reason, since the joint of the two diaphragms appears in the vicinity of the center, which is the display area of the display unit, there is a problem that the display quality of the video by the display unit is deteriorated.

  Further, when the flat speaker system described in Patent Document 3 is applied to a display device, a fret (vibration suppressing member) is provided in the vicinity of the center of the diaphragm (diaphragm) that is the display area of the display unit. Therefore, there is a problem that the display quality of the video by the display unit is deteriorated.

  In addition, when the sound generating sheet described in Patent Document 4 is applied to a display device, a gap is provided in the vicinity of the center of a resonance plate (vibration plate) that is a display area of the display unit. There is a problem that the display quality of the video is lowered.

  Further, in the sound source image matching display described in Patent Document 5, there is no disclosure or suggestion of a structure that suppresses vibration of the diaphragm. For this reason, it is considered that the vibrations transmitted to the diaphragm by the respective exciters are mixed. As a result, it is considered that it is difficult to generate stereo sound by the diaphragm.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to generate stereo sound without lowering the display quality of the video by the display unit, and to reduce the bass. To provide a display device capable of improving sound quality.

Means for Solving the Problems and Effects of the Invention

  A display device according to an aspect of the present invention is configured to be configured to be capable of transmitting a display unit that displays an image and a display unit that is disposed in front of the display unit so that the image displayed on the display unit can pass therethrough and that can vibrate. Two diaphragms, vibration elements arranged on one side and the other side of the diaphragm in the horizontal direction, for generating sound from the diaphragm by transmitting vibration to the diaphragm, and an image of the display unit are displayed And a fixing member that is disposed outside the region and fixes the vicinity of the central portion in the horizontal direction of the diaphragm.

  In the display device according to this aspect, as described above, one vibration plate configured to be able to vibrate is disposed on each of the horizontal side and the other side of the vibration plate, and the vibration is transmitted to the vibration plate. By providing a vibration element that generates sound from the diaphragm and a fixing member that fixes the vicinity of the central portion of the diaphragm in the horizontal direction, vibrations arranged on one side of the diaphragm in the horizontal direction by the fixing member It is possible to suppress the vibration of the diaphragm caused by the element from being transmitted to the other side of the position where the fixing member of the diaphragm is disposed. Thereby, it is possible to suppress mixing of vibrations transmitted in the horizontal direction to the diaphragm by the vibration elements arranged on one side and the other side of the diaphragm in the horizontal direction. Stereo sound can be generated. Moreover, even if the fixing member is provided by disposing the fixing member outside the area where the image of the display unit is displayed, the display quality of the image by the display unit does not deteriorate. Further, by disposing the fixing member in the vicinity of the horizontal central portion of the diaphragm, from the portion where the fixing member in the vicinity of the horizontal central portion of the diaphragm is arranged to the horizontal end of the diaphragm. The portion can be configured to vibrate. As a result, the vibration possible region of the diaphragm can be made larger than when a fixing member is provided in the vicinity of the vibration element disposed near both ends of the diaphragm, so that the vibration amplitude of the diaphragm is increased. be able to. As a result, the sound quality of bass can be improved.

  In the display device according to the above aspect, the fixing member preferably fixes the first fixing member that fixes the upper part of the diaphragm in the vicinity of the horizontal center part and the lower part of the diaphragm in the vicinity of the center part of the horizontal direction. A second fixing member. If comprised in this way, since the upper part and lower part of the center part vicinity of the horizontal direction of a diaphragm can be fixed with the 1st fixing member and the 2nd fixing member, the horizontal direction one side and other side of a diaphragm It is possible to more effectively suppress mixing of vibrations transmitted in the horizontal direction to the diaphragm by the vibration elements arranged on the respective sides.

  In the display device according to the above aspect, the fixing member preferably further includes a recess into which the diaphragm is fitted. If comprised in this way, a fixing member can fix a diaphragm easily, when a diaphragm is engage | inserted by a recessed part.

  In the display device according to the above aspect, it is preferable that the display device further includes a support frame disposed behind the diaphragm and supporting the display unit, and the fixing member is attached to the support frame. If comprised in this way, a fixing member can be attached to the support frame which supports a display part. Thereby, since it is not necessary to provide the components for attaching a fixing member separately, it can suppress that the number of components increases correspondingly.

  In the display device according to the above aspect, the diaphragm is preferably fixed by a fixing member in a state of being separated from the display unit at a predetermined interval. If comprised in this way, a fixing member can fix a diaphragm in the state in which the vibration of the diaphragm transmitted by a vibration element is not transmitted to a display part. As a result, it is possible to suppress a decrease in the display quality of the image on the display unit due to the vibration of the diaphragm.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.

  FIG. 1 is an overall perspective view of a liquid crystal television device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the liquid crystal television apparatus according to the embodiment of the present invention shown in FIG. 3 to 6 are views showing a detailed structure of the liquid crystal television device according to the embodiment of the present invention shown in FIGS. With reference to FIGS. 1-6, the structure of the liquid crystal television apparatus 1 by one Embodiment of this invention is demonstrated. In one embodiment of the present invention, a case where the present invention is applied to a liquid crystal television device 1 which is an example of a display device will be described.

  As shown in FIG. 1, a liquid crystal television device 1 according to an embodiment of the present invention supports a case 4 including a front case 2 and a rear case 3 having an opening 2a, and supports the case 4 from below. The leg part 5 to be provided. The opening 2a of the front housing 2 is provided to expose the transparent diaphragm 10 toward the front. Moreover, the area | region which forms the opening part 2a of the front side housing | casing 2 becomes a video display area | region of the liquid crystal module 20 (refer FIG. 2) mentioned later. The diaphragm 10 is configured to be able to transmit an image displayed by a liquid crystal module 20 (see FIG. 2) to be described later, and to be able to vibrate. The diaphragm 10 also has a function of protecting a liquid crystal module 20 (see FIG. 2) described later from an impact from the front. In the present embodiment, a light transmissive material such as glass, acrylic resin, polycarbonate resin or the like is used as the diaphragm 10.

  Here, in this embodiment, as shown in FIG. 2, the diaphragm 10, the liquid crystal module 20 that displays an image, and the support that supports the liquid crystal module 20 are provided behind the front housing 2 (in the direction of arrow Y <b> 2). A frame 30 is arranged. The support frame 30 includes three attachment portions 31 provided at the end portion on the arrow X1 direction side and three attachment portions 32 provided on the end portion on the arrow X2 direction side. As shown in FIGS. 2 and 3, the three attachment portions 31 provided on the support frame 30 are provided with three portions that generate sound by transmitting vibration to the vicinity of the end portion on the arrow X1 direction side of the diaphragm 10. An exciter (sound generation source) 33 is attached. In addition, three exciters (sound generation sources) 34 that generate sound by transmitting vibration to the vicinity of the end portion of the diaphragm 10 on the arrow X2 direction side are attached to the three attachment portions 32 provided on the support frame 30. Is attached. These exciters 33 and 34 are configured to generate sound using different channels (sound ranges). That is, the exciters 33 and 34 have a function of generating stereo sound by vibrating the diaphragm 10. In the present embodiment, vibration generators such as magnetostrictive elements, piezoelectric elements, and electrodynamic vibration generators are used as the exciters 33 and 34. The liquid crystal module 20 is an example of the “display unit” in the present invention, and the exciters 33 and 34 are examples of the “vibration element” in the present invention.

  Further, as shown in FIG. 4, the exciters 33 and 34 are configured to transmit vibration from the rear (arrow Y2 direction) to the back surface of the diaphragm 10. Thereby, when the diaphragm 10 vibrates, the liquid crystal television apparatus 1 (see FIG. 1) is opened from the opening 2a (see FIGS. 1 and 5) of the front housing 2 (see FIGS. 1 and 5). A sound is emitted toward the front (arrow Y1 direction).

  As shown in FIG. 2, the support frame 30 has two screw holes 30 a for attaching a fixing member 40 to be described later, as well as being provided at the upper part. Further, the support frame 30 is provided at the lower portion and has two screw holes 30b for attaching a fixing member 50 described later.

  In the present embodiment, as shown in FIGS. 2 and 3, a function of suppressing vibration of the diaphragm 10 is provided in the upper part of the support frame 30 near the center in the horizontal direction (arrow X1 direction and arrow X2 direction). And a fixing member 40 made of sheet metal is attached. The fixing member 40 is an example of the “first fixing member” in the present invention. As shown in FIG. 6, the fixing member 40 includes an attachment plate portion 41 formed in a plate shape for attaching the fixing member 40 to the support frame 30 (see FIGS. 2 and 3), and the diaphragm 10 (FIG. 2). And a grip portion 42 having a recess 42a for gripping the diaphragm 10 by being fitted therein. The mounting plate portion 41 has two screw insertion holes 41 a for mounting the fixing member 40 to the support frame 30 (see FIGS. 2 and 3) with two screws 60. As shown in FIG. 3, each screw 60 is inserted into the screw insertion hole 41 a of the attachment plate portion 41 and screwed into a screw hole 30 a (see FIG. 2) provided in the support frame 30.

  Further, as shown in FIG. 6, the recess 42a of the fixing member 40 is formed to extend in the horizontal direction over the entire length L1 of the fixing member 40 in the horizontal direction (arrow X1 direction and arrow X2 direction). ing. That is, the upper portion of the diaphragm 10 is fixed by the fixing member 40 by a length L1 in the horizontal direction (arrow X1 direction and arrow X2 direction) as shown in FIG. In addition, as shown in FIG. 4, the fixing member 40 has a length L1 / 2 from the center in the horizontal direction to the end portion with respect to a length L0 / 2 from the center in the horizontal direction to the end portion of the diaphragm 10. , About 1/3 to about 1/2. Thereby, since the diaphragm 10 can be fixed over a wide range, the vibration of the diaphragm 10 can be more effectively suppressed.

  Further, as shown in FIG. 5, the diaphragm 10 is formed to have a thickness t having a length L2. Further, the concave portion 42a of the fixing member 40 has a length L2 in the front-rear direction (arrow Y1 direction and Y2 direction) of the diaphragm 10 in order to firmly fix the diaphragm 10 when the diaphragm 10 is fitted. It is formed so as to be substantially the same as the thickness t.

  In the present embodiment, as shown in FIG. 5, the fixing member 40 is configured to fix the diaphragm 10 in a state of being separated from the front surface 20 a of the liquid crystal module 20 by a distance L3. . In addition, the fixing member 40 is configured to fix the diaphragm 10 in a state where the front member 2b of the front housing 2 and the diaphragm 10 are separated by a distance L4. As a result, the vibration of the diaphragm 10 is transmitted to the front housing 2, thereby suppressing the front housing 2 from vibrating.

  Moreover, in this embodiment, the fixing member 40 is arrange | positioned so that it may be hidden behind the front part 2b of the front side housing | casing 2 seeing from the front (arrow Y1 direction). That is, the fixing member 40 is disposed in a region outside the video display region of the liquid crystal module 20 that is a region that is not exposed forward from the opening 2 a of the front housing 2.

  In the present embodiment, as shown in FIG. 3, a fixing member 50 having the same structure as that of the fixing member 40 is provided in the lower portion of the support frame 30 near the center in the horizontal direction (arrow X1 direction and arrow X2 direction). Is attached. Specifically, as shown in FIG. 2, the fixing member 50 includes a mounting plate portion 51 having two screw insertion holes 51a and a grip portion 52 having a recess 52a. A screw 70 is inserted into each of the two screw insertion holes 51 a, and each screw 70 is configured to be screwed into a screw hole 30 b provided in the support frame 30. With these fixing members 40 and 50, as shown in FIG. 3, it is possible to fix the upper and lower portions in the vicinity of the central portion of the diaphragm 10 in the horizontal direction (arrow X1 direction and arrow X2 direction). The fixing member 50 is an example of the “second fixing member” in the present invention.

  FIG. 7 is a plan view for explaining the operation of the diaphragm of the liquid crystal television device according to the embodiment of the present invention. Next, operations of the exciter 33, the diaphragm 10, and the fixing member 40 according to the present embodiment will be described with reference to FIG.

  As shown in FIG. 7, the vibration is transmitted by the exciter 33, and the diaphragm 10 is vibrated by bending in the arrow Y <b> 1 direction and the arrow Y <b> 2 direction. The diaphragm 10 at this time is vibrated to the position indicated by the broken line in the direction of the arrow Y1. The diaphragm 10 is vibrated to the position indicated by the dotted line in the direction of the arrow Y2. Moreover, since the diaphragm 10 is fixed by the fixing member 40 in the vicinity of the central portion in the horizontal direction (arrow X1 direction and arrow X2 direction), the position of the end portion on the arrow X1 direction side of the fixing member 40 is the vibration center. Become.

  Further, in the present embodiment, as shown in FIG. 7, the vibration on the arrow X1 direction side of the diaphragm 10 generated by the exciter 33 is not transmitted to the arrow X2 direction side from the position where the fixing member 40 is disposed. . 7 shows the operation in which only the exciter 33 vibrates the diaphragm 10. However, when the exciter 34 vibrates the diaphragm 10, the diaphragm 33 vibrates in the same manner as when the exciter 33 vibrates the diaphragm 10. 10, the position of the end of the fixing member 40 on the arrow X2 direction side is the center of vibration, and the vibration on the arrow X2 direction side of the diaphragm 10 generated by the exciter 34 is from the position where the fixing member 40 is disposed. Is not transmitted to the arrow X1 direction side. That is, since the vibration of the vibration plate 10 by the exciter 33 and the vibration of the vibration plate 10 by the exciter 34 are suppressed from being mixed by the fixing member 40, the exciters 33 and 34 each having separate channels (sound ranges). Thus, stereo sound can be generated by one diaphragm 10.

  7 shows a state in which the fixing member 40 suppresses vibration at the upper part of the diaphragm 10, but the fixing member 50 also suppresses vibration of the diaphragm 10 at the lower part of the diaphragm 10 in the same manner as the fixing member 40. ing.

  In the present embodiment, as described above, one diaphragm 10 configured to be able to vibrate, and arranged on each of the arrow X1 direction side and the arrow X2 direction side of the diaphragm 10, and transmit vibration to the diaphragm 10. By providing the exciters 33 and 34 that generate sound from the diaphragm 10 and the fixing member 40 that fixes the vicinity of the center of the diaphragm 10 in the horizontal direction (arrow X1 direction and arrow X2 direction), the fixing member 40 is provided. Thus, the vibration of the diaphragm 10 caused by the exciter 33 disposed on the arrow X1 direction side of the diaphragm 10 is suppressed from being transmitted to the arrow X2 direction side from the position where the fixing member 40 of the diaphragm 10 is disposed. The vibration of the diaphragm 10 by the exciter 34 is suppressed from being transmitted to the arrow X1 direction side from the position where the fixing member 40 of the diaphragm 10 is disposed. It is possible. As a result, it is possible to suppress mixing of vibrations transmitted in the horizontal direction to the diaphragm 10 by the exciters 33 and 34 arranged on the arrow X1 direction side and the arrow X2 direction side of the diaphragm 10, respectively. Stereo sound can be generated by one diaphragm 10. Further, by disposing the fixing member 40 outside the region where the image of the liquid crystal module 20 is displayed, even if the fixing member 40 is provided, the display quality of the image by the liquid crystal module 20 is not deteriorated. Further, by disposing the fixing member 40 in the vicinity of the central portion in the horizontal direction of the diaphragm 10, the arrow 10 in the arrow X1 direction side of the diaphragm 10 from the end portion of the fixing member 40 in the arrow X1 direction side. The portion up to the end of the can be configured to be vibrated. Thereby, since the area | region which can vibrate the diaphragm 10 can be enlarged rather than the case where the fixing member 40 is provided in the vicinity of the exciters 33 and 34 arrange | positioned in the vicinity of the both ends of the diaphragm 10, the diaphragm 10 The amplitude of vibration can be increased. As a result, the sound quality of bass can be improved.

  Further, in the present embodiment, as described above, the fixing member 40 that fixes the upper portion in the vicinity of the central portion of the vibration plate 10 in the horizontal direction (arrow X1 direction and arrow X2 direction), and the horizontal center portion of the vibration plate 10 By providing the fixing member 50 that fixes the lower part in the vicinity, the upper part and the lower part in the vicinity of the central part of the diaphragm 10 in the horizontal direction (arrow X1 direction and arrow X2 direction) are fixed by the fixing member 40 and the fixing member 50. can do. Accordingly, it is more effective that the vibrations transmitted in the horizontal direction to the diaphragm 10 are mixed by the exciters 33 and 34 arranged on the arrow X1 direction side and the arrow X2 direction side of the diaphragm 10 respectively. Can be suppressed.

  Further, in the present embodiment, as described above, by providing the fixing member 40 with the concave portion 42a into which the diaphragm 10 is fitted, the fixing member 40 can be easily fitted into the concave portion 42a. The diaphragm 10 can be fixed.

  In the present embodiment, as described above, the fixing members 40 and 50 can be attached to the support frame 30 that supports the liquid crystal module 20 by attaching the fixing member 40 and the fixing member 50 to the support frame 30. There is no need to separately provide parts for attaching the fixing members 40 and 50. Thereby, it can suppress that the number of parts increases correspondingly.

  Further, in the present embodiment, as described above, the diaphragm 10 is configured to be fixed by the fixing member 40 while being separated from the liquid crystal module 20 by the distance L3, whereby the fixing member 40 is the exciter. The diaphragm 10 can be fixed in a state in which the vibration of the diaphragm 10 transmitted by 33 and 34 is not transmitted to the liquid crystal module 20. As a result, it is possible to suppress the deterioration of the display quality of the video by the liquid crystal module 20 due to the vibration of the diaphragm 10.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above embodiment, a liquid crystal television device is shown as an example of the display device of the present invention. However, the present invention is not limited to this, and an exciter that generates sound by vibrating a vibrating plate and a vibrating plate. Can be applied to display devices other than liquid crystal television devices such as mobile phones, plasma television devices, and monitors.

  In the above embodiment, three exciters (voice transmission sources) are provided at both ends in the horizontal direction of the diaphragm. However, the present invention is not limited to this, and three exciters are provided at both ends of the diaphragm. Less than four or more than four exciters may be provided.

  Moreover, in the said embodiment, although the example which fixes a diaphragm by fitting a diaphragm in the recessed part of a fixing member was shown, this invention is not restricted to this, A fixing member and a diaphragm are used with a double-sided tape, an adhesive material, etc. And may be fixed by bonding.

  Moreover, although the example which fixes the upper part and the lower part of a diaphragm with a fixing member was shown in the said embodiment, this invention is not restricted to this, Only either the upper part or the lower part of a diaphragm is fixed with a fixing member. You may comprise as follows.

1 is a perspective view showing an overall structure of a liquid crystal television device according to an embodiment of the present invention. It is a disassembled perspective view for demonstrating the internal structure of the liquid crystal television apparatus by one Embodiment shown in FIG. It is a perspective view for demonstrating the attachment structure with respect to the fixing member of the diaphragm of the liquid crystal television apparatus by one Embodiment shown in FIG. It is sectional drawing for demonstrating the positional relationship of the front-back direction of the liquid crystal television apparatus by one Embodiment shown in FIG. It is sectional drawing along the 100-100 line shown in FIG. It is a perspective view for demonstrating the structure of the fixing member of the liquid crystal television apparatus by one Embodiment shown in FIG. It is a figure for demonstrating operation | movement with the exciter and diaphragm of the liquid crystal television apparatus by one Embodiment shown in FIG.

Explanation of symbols

1 Liquid crystal television device (display device)
10 Diaphragm 20 Liquid crystal module (display unit)
30 Support frame 33, 34 Exciter (vibration element)
40, 50 fixing member (first fixing member, second fixing member)
42a, 52a recess

Claims (5)

A display unit for displaying images;
One diaphragm arranged in front of the display unit and configured to be able to transmit an image displayed on the display unit and configured to vibrate;
A vibration element that is disposed on each of one side and the other side of the diaphragm in the horizontal direction, and generates sound from the diaphragm by transmitting vibration to the diaphragm;
A display device, comprising: a fixing member that is disposed outside a region where an image of the display unit is displayed and fixes a vicinity of a central portion in a horizontal direction of the diaphragm.   The fixing member includes a first fixing member that fixes an upper portion in the vicinity of a central portion in the horizontal direction of the diaphragm, and a second fixing member that fixes a lower portion in the vicinity of the central portion in the horizontal direction of the diaphragm. Item 4. The display device according to Item 1.   The display device according to claim 1, wherein the fixing member further includes a recess into which the diaphragm is fitted. A support frame disposed behind the diaphragm and supporting the display;
The display device according to claim 1, wherein the fixing member is attached to the support frame.   The display device according to claim 1, wherein the diaphragm is fixed by the fixing member in a state of being separated from the display unit at a predetermined interval.

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