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JP2006148270

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2006148270
PROBLEM TO BE SOLVED: To provide a display-integrated type speaker of a structure in which
the vibration of a diaphragm is not easily transmitted to a part other than the diaphragm.
SOLUTION: By screwing a shield cover 5 and a control substrate 6, it is possible to prevent the
ground or non-grounded state of the control substrate 6 from being switched in a short period of
time by the vibration of the transparent diaphragm 1. Most parts of the substrate cover 7 and the
shield cover 5 are not joined, and by screwing a part, transmission of vibration of the transparent
diaphragm 1 to the substrate cover 7 through the shield cover 5 is significantly reduced. The
pressure plates 12a and 12b are attached downward to the shield cover 5 and the exciter 2 is
pressed by the pressure plates 12a and 12b to prevent the vibration of the exciter 2 from being
transmitted to the shield cover 5. [Selected figure] Figure 1
Display-integrated speaker and information processing apparatus using the same
[0001]
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 the display
integrated speaker.
[0002]
In recent years, a display integrated speaker in which a speaker is provided in front of a display
(display device) has been put to practical use.
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As an example, one in which a transparent acrylic plate forming a liquid crystal display surface is
also used as a diaphragm of a speaker is known (see, for example, Patent Document 1).
[0003]
FIG. 7 is an assembly view 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
substrate 6, and a substrate cover. 7 and an exterior cover 8, and the transparent diaphragm 1
and the exciter 2 constitute a panel type speaker. In addition, the structure which does not
contain the control board 6 and the board | substrate cover 7 is also considered by the
specification.
[0004]
The exciter 2 is attached to the exterior cover 3, and the exciter 2 vibrates the transparent
diaphragm 1. A liquid crystal unit 4 is attached to the inside of the exterior cover 3, and the
liquid crystal unit 4 is covered by a shield cover 5. A control substrate 6 is provided on the shield
cover 5, and the substrate cover 7 covers the control substrate 6. 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.
[0005]
FIG. 8 is a perspective view showing an example of the 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 hook-shaped protrusion 5a, and a
locking portion 5b is formed on the protrusion 5a. 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 5 b and the hole 6 a are intended to position the shield
cover 5 and the control substrate 6.
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2
[0006]
FIG. 9 is a cross-sectional view showing an example of the conventional attachment structure of
the substrate cover 7 and the shield cover 5. Referring to this figure, the substrate cover 7 is
joined to the shield cover 5.
[0007]
JP-A-2002-533957 (abstract)
[0008]
However, the conventional display-integrated speaker has a drawback that the vibration of the
transparent diaphragm 1 can be easily transmitted to other portions than the transparent
diaphragm 1.
When the vibration of the transparent diaphragm 1 is transmitted to a portion other than the
transparent diaphragm 1, a so-called chatter (abnormal sound) is generated.
[0009]
On the other hand, in the method shown in FIG. 8, only the locking portion 5b of the shield cover
5 is fitted into the hole 6a of the control board 6, the control board 6 is not securely grounded to
the shield cover 5, and the transparent diaphragm The vibration of 1 switches the grounded or
ungrounded state of the control board 6 in a short period of time, which contributes to the
generation of the chattering noise.
[0010]
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, which also causes the generation of the noise Contributed to the
[0011]
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As described above, unlike the conventional speaker, the display-integrated speaker vibrates a
flat plate in a wide range, so that the acoustic vibration is transmitted to a structure other than
the flat plate, which contributes to the generation of the sound clinging. It was
Sound clutter can be a fatal quality issue for loudspeaker systems, and measures are urgently
needed.
[0012]
Therefore, in a liquid crystal display, a liquid crystal unit, and the like having a structure in which
layers are stacked in a complicated manner, it is necessary to establish a structure in which the
vibration is suppressed.
In addition, since the present display-integrated speaker is adopted for devices other than liquid
crystal displays and liquid crystal units in the future, it is expected that the market will be
expanded, and therefore development of a vibration control structure is considered to be
important.
[0013]
On the other hand, a means for solving these problems is not disclosed in Patent Document 1.
[0014]
Therefore, an object of the present invention is to provide a display-integrated type speaker
having a structure in which the vibration of the diaphragm is not easily transmitted to a portion
other than the diaphragm and an information processing apparatus using the same.
[0015]
In order to solve the above problems, the 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 mounted on the back of the transparent diaphragm. The
display integrated speaker is characterized by including vibration control means which makes it
difficult for the vibration of the transparent diaphragm to be transmitted to a portion other than
the transparent diaphragm.
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[0016]
An information processing apparatus according to the present invention includes the display
integrated speaker.
[0017]
That is, according to the present invention, the vibration of the diaphragm is achieved by firmly
fixing the portion other than the transparent diaphragm with a screw or the like and pressing the
vibration source or separating the vibration source from the portion other than the transparent
diaphragm. It is possible to make it difficult to transmit to the part other than the diaphragm.
[0018]
According to the present invention, by having the above configuration, it is possible to provide a
display-integrated type speaker having a structure in which the vibration of the diaphragm is not
easily transmitted to a portion other than the diaphragm and an information processing
apparatus using the same.
[0019]
Specifically, by screwing the shield cover 5 and the control substrate 6, it is possible to prevent
the ground or non-grounded state of the control substrate 6 from being switched in a short
period of time due to the vibration of the transparent diaphragm 1. It becomes.
[0020]
In addition, most parts of the substrate cover 7 and the shield cover 5 are not joined and a part
thereof is screwed to significantly reduce transmission of the vibration of the transparent
diaphragm 1 to the substrate cover 7 via the shield cover 5. It becomes possible.
[0021]
Also, by attaching the pressure plates 12a and 12b downward to the shield cover 5 and pressing
the exciter 2 with the pressure plates 12a and 12b, it is possible to prevent the vibration of the
exciter 2 from being transmitted to the shield cover 5 Become.
[0022]
Moreover, it becomes possible to reduce the vibration of the covers 5 and 7 by fixing the end
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5
portions 14c and 14b of the side surfaces 14a adjacent to each other with the application
member such as the tape 15.
[0023]
Further, by providing the reinforcing plate 16 on the exterior cover 3, it is possible to reduce the
vibration of the exterior cover 3.
[0024]
Further, the exciter 2 is separated from the exterior cover 3 and the exciter 2 is fixed to the
transparent diaphragm 1 using the holding portion (exciter holder) 17 to prevent the vibration of
the exciter 2 from being transmitted to the exterior cover 3 Is possible.
[0025]
By the above, it is possible to prevent the generation of the chattering of the sound.
That is, by preventing the vibration of the vibration source from being transmitted to other than
the diaphragm, it is possible to eliminate the extra energy loss of the speaker and to secure the
sound quality as the speaker system.
[0026]
Hereinafter, embodiments of the present invention will be described with reference to the
attached drawings.
The basic configuration of the display-integrated speaker according to the present invention is
the same as that shown in FIG. 7 described above.
Therefore, the description of the configuration is omitted.
Hereinafter, differences between the structure of the present invention and the conventional
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structure will be described.
[0027]
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, only the locking portion 5b of the shield cover 5 is fitted into the hole 6a of the
control board 6 (see FIG. 8), but a new configuration is added in the present invention.
[0028]
A hole 5c is formed on the upper surface of the wedge-shaped projection 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 holes 5c. And fixed by screws 11 via holes 6b.
[0029]
As described above, by screwing the shield cover 5 and the control substrate 6, it is possible to
prevent the ground or non-grounded state of the control substrate 6 from being switched in a
short period of time by the vibration of the transparent diaphragm 1. This makes it possible to
prevent the generation of clutter.
[0030]
FIG. 2 is a cross-sectional view showing an example of the attachment 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 bonded 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
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distance of at least 5 mm.
Specifically, the substrate cover 7 and a part of the shield cover 5 are fixed using screws (not
shown).
[0031]
As described above, most parts of the substrate cover 7 and the shield cover 5 are not in contact,
and by screwing a part, transmission of the vibration of the transparent diaphragm 1 to the
substrate cover 7 via the shield cover 5 is significantly reduced. This makes it possible to prevent
the generation of chattering noise.
[0032]
FIG. 3 is a perspective view showing an example of the attachment 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 was attached to the exterior cover 3.
Therefore, the vibration transmitted from the exciter 2 to the exterior cover 3 was also
transmitted to the shield cover 5.
[0033]
On the other hand, in the present invention, the pressure plates 12a and 12b are attached
downward to the shield cover 5, and the outer cover 3 is provided with holes 13a and 13b for
penetrating the pressure plates 12a and 12b. Press the exciter 2.
By pressing the exciter 2 with the pressing plates 12 a and 12 b in this manner, it is possible to
prevent the vibration of the exciter 2 from being transmitted to the shield cover 5.
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On the other hand, there is no difference from the prior art in that the exciter 2 vibrates the
transparent diaphragm 1, and therefore, the vibration of the exciter 2 can be efficiently
transmitted to the transparent diaphragm 1.
[0034]
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 appearance of the covers 5 and 7 shown in the same figure is different from the
appearance of the shield cover 5 and the substrate cover 7 shown in FIG. 7, the one shown in
FIG. 4 is an example of the covers 5 and 7. The present invention can be applied to the same
cover as the shield cover 5 and the substrate cover 7.
[0035]
Conventionally, since the end portions 14c and 14d of the side surfaces 14a and 14b of the
covers 5 and 7 are not joined, the side surfaces 14a and 14b are configured to easily vibrate.
[0036]
Therefore, in the present invention, the end 14 c of the side surface 14 a and the end 14 d of the
side surface 14 b are fixed by a sticking member such as a tape 15.
This makes it possible to reduce the vibrations of the covers 5 and 7.
[0037]
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 has been transmitted to the exterior cover 3.
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In the present invention, a 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 attachment portion 3a
side. The reinforcing plate 16 may be integrally formed by the exterior cover 3 or may be
configured as a separate part such as a sheet metal. By providing the reinforcing plate 16 on the
exterior cover 3, it is possible to reduce the vibration of the exterior cover 3.
[0038]
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.
[0039]
Conventionally, the exciter 2 was attached to the exterior cover 3.
For this reason, the vibration of the exciter 2 was 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. This
makes it possible to prevent the vibration of the exciter 2 from being transmitted to the exterior
cover 3.
[0040]
It is possible to apply the present invention to a display-integrated speaker equipped with a
liquid crystal display. In addition, 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 cellular phone, a PDA (personal digital assistant), a video reproduction apparatus
and a DVD (digital versatile disc) reproduction apparatus. .
[0041]
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It is a perspective view which shows an example of the connection structure of the shield cover 5
and control board 6 of a display integrated type speaker which concerns on this invention. It is
sectional drawing which shows an example of the attachment structure of the substrate cover 7
of the display integrated speaker which concerns on this invention, and the shield cover 5. As
shown in FIG. It is sectional drawing which shows an example of the attachment structure of the
substrate cover 7 of the display integrated speaker which concerns on this invention, and the
shield cover 5. As shown in FIG. It is a perspective view which shows an example of the structure
of the shield cover 5 of the display integrated speaker which concerns on this invention, and the
board | substrate cover 7. FIG. 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. FIG. 3
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. 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. As shown in FIG. It is sectional drawing
which shows an example of the attachment structure of the conventional substrate cover 7 and
the shield cover 5. As shown in FIG.
Explanation of sign
[0042]
DESCRIPTION OF SYMBOLS 1 Transparent diaphragm 2 Exciter 3 Exterior cover 4 Liquid crystal
unit (display part) 5 Shield cover 5a Projection part 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 Tape 16
Reinforcement plate 17 Exciter holder
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