JP4143594B2 - Display integrated speaker and information processing apparatus using the same - Google Patents

Description

  The present invention relates to a display integrated speaker and an information processing apparatus using the same, and more particularly to a vibration control structure of a display integrated speaker.

  In recent years, a display-integrated speaker in which a speaker is provided in front of a display (display device) has been put into practical use. As an example, a transparent acrylic plate that forms a liquid crystal display surface is also used as a speaker diaphragm (see, for example, Patent Document 1).

  FIG. 7 is an assembly diagram of an example of a conventional display-integrated speaker. Referring to the figure, the display-integrated speaker includes a transparent diaphragm 1, an exciter 2, a frame-shaped exterior cover 3, a liquid crystal unit (display unit) 4, a shield cover 5, a control board 6, and a board cover. 7 and the exterior cover 8, and the transparent diaphragm 1 and the exciter 2 constitute a panel type speaker. Depending on the specifications, a configuration that does not include the control board 6 and the board cover 7 is also conceivable.

  The exciter 2 is attached to the exterior cover 3, and the transparent diaphragm 1 is vibrated by the exciter 2. A liquid crystal unit 4 is attached to the inside of the exterior cover 3, and the liquid crystal unit 4 is covered with a shield cover 5. A control board 6 is provided on the shield cover 5, and the control board 6 is covered with a board cover 7. The substrate cover 7 is attached to the shield cover 5. Then, the exterior cover 8 is attached to the exterior cover 3 so as to cover the substrate cover 7, the control substrate 6, the shield cover 5, and the liquid crystal unit 4.

  FIG. 8 is a perspective view showing an example of a conventional attachment structure of the shield cover 5 and the control board 6. The figure shows a part of the shield cover 5 and a part of the control board 6. The shield cover 5 is formed with a bowl-shaped projection 5a, and the projection 5a is formed with a locking portion 5b. On the other hand, holes 6 a are formed in the vicinity of the four corners of the control board 6. Then, the control board 6 is attached to the shield cover 5 by fitting the locking portion 5 b of the shield cover 5 into the hole 6 a of the control board 6. The locking portion 5b and the hole 6a are intended to position the shield cover 5 and the control board 6.

  FIG. 9 is a cross-sectional view showing an example of a conventional mounting structure for the substrate cover 7 and the shield cover 5. Referring to the figure, the substrate cover 7 is joined to the shield cover 5.

JP 2002-533957 A (summary)

  However, the conventional display-integrated speaker has a drawback that the vibration of the transparent diaphragm 1 is easily transmitted to parts other than the transparent diaphragm 1. When the vibration of the transparent diaphragm 1 is transmitted to a portion other than the transparent diaphragm 1, so-called chattering (abnormal sound) is generated.

  On the other hand, in the method shown in FIG. 8, since the engaging portion 5 b of the shield cover 5 is merely fitted into the hole 6 a of the control board 6, the control board 6 is not reliably grounded to the shield cover 5, and the transparent diaphragm Due to the vibration of 1, the grounding or non-grounding state of the control board 6 is switched in a short time, which is a cause of the occurrence of sound chatter.

  Further, in the method shown in FIG. 9, since the substrate cover 7 is joined to the shield cover 5, the vibration of the transparent diaphragm 1 is easily transmitted to the substrate cover 7 through the shield cover 5, and this also causes a sound chatter. It was one of the causes.

  Thus, unlike a conventional speaker, a display-integrated speaker vibrates a wide range of flat plates. Therefore, acoustic vibration is transmitted to structures other than the flat plate, which contributes to the occurrence of sound chatter. It was. Sound chatter can be a fatal quality problem for speaker systems, and countermeasures are urgently needed.

  Accordingly, it is necessary to establish a structure that suppresses vibration in a liquid crystal display, a liquid crystal unit, and the like having a complicated stacked structure. In addition, this display integrated speaker will be adopted in devices other than liquid crystal displays and liquid crystal units in the future, and the market is expected to expand. Therefore, the development of vibration control structures will be important.

  On the other hand, means for solving these problems is not disclosed in Patent Document 1.

  Accordingly, an object of the present invention is to provide a display-integrated speaker having a structure in which vibrations of a diaphragm are not easily transmitted to parts other than the diaphragm, and an information processing apparatus using the display-integrated speaker.

In order to solve the above problems, a display-integrated speaker according to the present invention includes a transparent diaphragm, an exciter that vibrates the transparent diaphragm, and a display unit and other parts stacked on the back of the transparent diaphragm. a display-integrated speaker, viewed including the vibration control means for vibrating the transparent diaphragm is not easily transmitted to the part other than the transparent diaphragm, the first portion and the second portion is stacked on the back surface of the display unit The vibration control means includes a locking part and a first hole provided in the first part, a second hole and a third hole provided in the second part for fitting the locking part, and the first part. A screw for fixing the first part and the second part via one hole and a third hole is included .

  An information processing apparatus according to the present invention includes the display-integrated speaker.

  That is, according to the present invention, the vibration of the diaphragm is fixed by firmly fixing a part other than the transparent diaphragm using a screw or the like, pressing the vibration source, or separating the vibration source from a part other than the transparent diaphragm. Can be made difficult to be transmitted to parts other than the diaphragm.

  According to the present invention, by having the above-described configuration, it is possible to provide a display-integrated speaker having a structure in which vibrations of the diaphragm are not easily transmitted to parts other than the diaphragm and an information processing apparatus using the display-integrated speaker.

  More specifically, by screwing the shield cover 5 and the control board 6, it is possible to prevent the grounding or non-grounding state of the control board 6 from being switched in a short time due to the vibration of the transparent diaphragm 1. It becomes.

  In addition, most of the substrate cover 7 and the shield cover 5 are not joined, and a part of the substrate cover 7 and the shield cover 5 are fixed with screws, so that transmission of the vibration of the transparent diaphragm 1 to the substrate cover 7 through the shield cover 5 can be greatly reduced. It becomes possible.

  Moreover, it is possible to prevent the vibration of the exciter 2 from being transmitted to the shield cover 5 by attaching the pressing plates 12a and 12b downward to the shield cover 5 and pressing the exciter 2 with the pressing plates 12a and 12b. Become.

  Moreover, it becomes possible to reduce the vibration of the covers 5 and 7 by fixing the edge part 14c of the adjacent side surface 14a, and the edge part 14d of 14b with adhesive members, such as the tape 15. FIG.

  Further, by providing the reinforcing plate 16 on the exterior cover 3, vibration of the exterior cover 3 can be reduced.

  Further, by separating the exciter 2 from the outer cover 3 and fixing the exciter 2 to the transparent diaphragm 1 using a holding portion (exciter holder) 17, the vibration of the exciter 2 is prevented from being transmitted to the outer cover 3. Is possible.

  As described above, it is possible to prevent the occurrence of sound chatter. That is, by preventing the vibration of the vibration source from being transmitted to other than the diaphragm, it is possible to eliminate excessive energy loss of the speaker and to ensure sound quality as the speaker system.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The basic structure of the display-integrated speaker according to the present invention is the same as that shown in FIG. Therefore, the description of the configuration is omitted. Hereinafter, differences between the structure of the present invention and the conventional structure will be described.

  FIG. 1 is a perspective view showing an example of a connection structure between a shield cover 5 and a control board 6 of a display-integrated speaker according to the present invention. Conventionally, the engaging portion 5b of the shield cover 5 has only been fitted into the hole 6a of the control board 6 (see FIG. 8), but a new configuration is added in the present invention.

  A hole 5c is formed in the upper surface of the hook-shaped protrusion 5a of the shield cover 5 of the present invention, a hole 6b is formed next to the hole 6a of the control board 6, and the shield cover 5 and the control board 6 are formed in the hole 5c. And it is fixed by the screw 11 through the hole 6b.

  Thus, by screwing the shield cover 5 and the control board 6, it becomes possible to prevent the grounding or non-grounding state of the control board 6 from being switched in a short time due to the vibration of the transparent diaphragm 1. As a result, it is possible to prevent the occurrence of sound chatter.

  FIG. 2 is a sectional view showing an example of a mounting structure of the substrate cover 7 and the shield cover 5 of the display-integrated speaker according to the present invention. Conventionally, the substrate cover 7 is joined to the shield cover 5 (see FIG. 9), but in the present invention, most of the substrate cover 7 and the shield cover 5 are not in contact with each other. As an example, as shown in FIG. 2, the substrate cover 7 and the shield cover 5 are held at a distance of at least 5 mm. Specifically, a part of the substrate cover 7 and the shield cover 5 is fixed using screws (not shown).

  In this way, most of the substrate cover 7 and the shield cover 5 are made non-contact, and a part thereof is screwed to greatly reduce the vibration of the transparent diaphragm 1 transmitted to the substrate cover 7 via the shield cover 5. This makes it possible to prevent the occurrence of sound chatter.

  FIG. 3 is a perspective view showing an example of a mounting structure of the shield cover 5, the liquid crystal unit 4, the exterior cover 3, and the exciter 2 of the display-integrated speaker according to the present invention. Conventionally, the exciter 2 is attached to the exterior cover 3. Therefore, the vibration transmitted from the exciter 2 to the exterior cover 3 is also transmitted to the shield cover 5.

  On the other hand, in the present invention, the pressing plates 12a and 12b are attached to the shield cover 5 facing downward, and the exterior cover 3 is provided with holes 13a and 13b for penetrating the pressing plates 12a and 12b. Press the exciter 2. By pressing the exciter 2 with the pressing plates 12 a and 12 b in this way, it is possible to prevent the vibration of the exciter 2 from being transmitted to the shield cover 5. On the other hand, the point that the exciter 2 vibrates the transparent diaphragm 1 is not different from the conventional one. Therefore, the vibration of the exciter 2 can be transmitted to the transparent diaphragm 1 efficiently.

  FIG. 4 is a perspective view showing an example of the structure of the shield cover 5 and the substrate cover 7 of the display-integrated speaker according to the present invention. Although the external appearance of the covers 5 and 7 shown in the figure is different from the external appearance of the shield cover 5 and the substrate cover 7 shown in FIG. 7, the one shown in FIG. The present invention can be applied to a cover similar to the shield cover 5 and the substrate cover 7.

  Conventionally, since the end portions 14c and 14d of the side surfaces 14a and 14b of the covers 5 and 7 have not been joined, the side surfaces 14a and 14b have a structure that easily vibrates.

  Therefore, in the present invention, the end portion 14c of the side surface 14a and the end portion 14d of the side surface 14b are fixed with an adhesive member such as the tape 15. Thereby, the vibration of the covers 5 and 7 can be reduced.

  FIG. 5 is a perspective view showing an example of the structure of the exterior cover 3 of the display-integrated speaker according to the present invention. Conventionally, the vibration of the exciter 2 is transmitted to the exterior cover 3. In the present invention, the reinforcing plate 16 is provided in the vicinity of the exciter 2, for example, along the side surface of the exterior cover 3 on the exciter 2 mounting portion 3a side. The reinforcing plate 16 may be integrally formed with the exterior cover 3, but may be configured as a separate part such as a sheet metal. By providing the reinforcing plate 16 on the exterior cover 3, vibration of the exterior cover 3 can be reduced.

  FIG. 6 is a perspective view showing an example of the structure of the transparent diaphragm 1, the exciter 2 and the exterior cover 3 of the display-integrated speaker according to the present invention.

  Conventionally, the exciter 2 is attached to the exterior cover 3. For this reason, the vibration of the exciter 2 is transmitted to the exterior cover 3. In the present invention, the exciter 2 is separated from the exterior cover 3, and the exciter 2 is fixed to the transparent diaphragm 1 using a holding member such as the exciter holder 17. Thereby, it is possible to prevent the vibration of the exciter 2 from being transmitted to the exterior cover 3.

  The present invention can be applied to a display-integrated speaker equipped with a liquid crystal display. Further, the present invention can be applied to an information processing apparatus having a display and an audio reproduction function, such as a personal computer, a mobile phone, a PDA (personal digital assistant), a video reproduction apparatus, a DVD (digital versatile disc) reproduction apparatus, and the like. .

It is a perspective view which shows an example of the connection structure of the shield cover 5 and the control board 6 of the display integrated speaker which concerns on this invention. It is sectional drawing which shows an example of the attachment structure of the board | substrate cover 7 and the shield cover 5 of the display-integrated speaker which concerns on this invention. It is sectional drawing which shows an example of the attachment structure of the board | substrate cover 7 and the shield cover 5 of the display-integrated speaker which concerns on this invention. It is a perspective view which shows an example of the structure of the shield cover 5 and the board | substrate cover 7 of the display integrated speaker which concerns on this invention. It is a perspective view which shows an example of the structure of the exterior cover 3 of the display integrated speaker which concerns on this invention. 1 is a perspective view showing an example of the structure of a transparent diaphragm 1, an exciter 2 and an exterior cover 3 of a display-integrated speaker according to the present invention. It is an assembly drawing of an example of the conventional display integrated speaker. It is a perspective view which shows an example of the attachment structure of the conventional shield cover 5 and the control board 6. FIG. It is sectional drawing which shows an example of the attachment structure of the conventional board | substrate cover 7 and the shield cover 5. FIG.

Explanation of symbols

1 Transparent diaphragm
2 Exciter
3 Exterior cover
4 Liquid crystal unit (display unit)
5 Shield cover
5a Protrusion
5b Locking part
5c hole
6 Control board 6a, 6b Hole
7 Board cover
8 Exterior cover
11 Screw 12a, 12b Press plate 13a, 13b Hole
15 tapes
16 Reinforcing plate
17 Exciter holder

Claims (8)

A display-integrated speaker including a transparent diaphragm, an exciter that vibrates the transparent diaphragm, and a display unit and other parts loaded on the back of the transparent diaphragm,
Look including a vibration control means for vibrating the transparent diaphragm is not easily transmitted to the part other than the transparent diaphragm,
A first part and a second part are loaded on the back of the display unit,
The vibration control means includes a locking part and a first hole provided in the first part, a second hole and a third hole provided in the second part for fitting the locking part, and the first part. A display-integrated speaker comprising a screw for fixing the first part and the second part via a hole and a third hole . The first part, the second part and the third part are loaded on the back surface of the display unit,
It said vibration control means display-integrated speaker according to claim 1, wherein the other portion Shi screwed portion between the first portion and the third portion is characterized in that a contactless. The first part, the second part and the third part are loaded on the back surface of the display unit, and the fourth part is loaded between the transparent diaphragm and the display unit,
The vibration control means includes a fourth hole provided in the fourth part, and a pressing plate for pressing the exciter through the fourth hole provided in the first part and provided in the fourth part. The display-integrated speaker according to claim 1 , wherein the display-integrated speaker is included. The first part, the second part, and the third part are stacked on the back surface of the display unit, and at least one of the first part and the third part has a shape of a rectangular cover,
The display-integrated speaker according to any one of claims 1 to 3, wherein the vibration control means is a sticking member that fixes ends of adjacent side surfaces of the rectangular cover. A fourth part is loaded between the transparent diaphragm and the display unit, the fourth part has a frame shape,
It said vibration control means display-integrated speaker according to claim 1, 4 or which is a reinforcing plate provided along the frame of the fourth region. 6. The display-integrated speaker according to claim 3, wherein the exciter is attached to the fourth portion.   2. The display-integrated speaker according to claim 1, wherein the vibration control means is a holding member that fixes the exciter to the transparent diaphragm. The information processing apparatus characterized by using a display-integrated speaker according to claim 1, 7 or.

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