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JP2005094377

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DESCRIPTION JP2005094377
An object of the present invention is to simplify assembly, suppress an increase in the number of
parts for assembly, and enhance the utility value of the exciter. An exterior main body (1)
incorporating an audio signal generation unit (28) inside, and a wide-area flexural diaphragm (4)
attached to the front side of the exterior main body (1). The front side area of the exterior main
body 1 is approximately equal to the front side area of the wide-area deflection diaphragm 4, and
the large-area deflection diaphragm 4 has a wide area equal to the image forming surface to
improve the appearance. The broad deflection diaphragm 4 forms a vibrating body 18, and the
vibration of the vibrating body 18 transmits the vibration to the broad deflection diaphragm 4.
The exterior body 1 forms a first connector 22, and the wide-area flexural diaphragm 4 forms a
second connector 24. The first connector 22 and the second connector 24 are detachably
coupled to each other. Such removability makes it easy to separate the large-area deflection
diaphragm 4 from the exterior main body 1. [Selected figure] Figure 2
Display, assembly structure thereof, and assembly method thereof
[0001]
The present invention relates to a display, an assembly structure thereof, and an assembly
method thereof, and more particularly to a liquid crystal, a display conforming to a flat speaker
accompanying display of plasma, an assembly structure thereof, and an assembly method
thereof.
[0002]
11-05-2019
1
With the development of plasma display technology and liquid crystal display technology, the
planar enlargement of a display panel is promoted.
Flat and large sized panels are required to be thin and have high quality. Furthermore, the
realization of high sense of presence by the spatial correspondence correspondence between the
video and the sound source is promoted. A technique for achieving the match between the video
and the sound source is known from Patent Document 1 mentioned later.
[0003]
The known sound source image matching display includes an exterior panel, a front transparent
layer (glass plate) supported on the back side of the exterior panel, and a flat imaging layer
disposed on the back side of the front transparent layer (liquid crystal It is composed of a layer, a
driving layer, and a sound source (exciter) disposed on the back side of the front side transparent
layer and joined to the front side transparent layer in a vibration transmitting manner, and is
entirely planarized. The flat board can be provided as a wall type. The front side transparent
layer protects the planar imaging layer and has a function of a sound reproducing layer as a
planar speaker. The front side transparent layer and the planar imaging layer are supported and
attached to the base panel of the assembly. The exterior panel may be formed as a body panel.
[0004]
It is important that the propagation of the sound waves reproduced in the front side transparent
layer to the exterior panel or the planar imaging layer is effectively avoided. In order to avoid
such propagation, an acoustic transmission attenuation layer is interposed between the front
transparent layer and the planar imaging layer. The connection between the damping layer and
the exciter and the several layers described above can lead to a complex assembly. The increase
in the number of expensive parts required for assembly hinders cost reduction.
[0005]
It is important that the display device by thinning and enlargement have high quality. In order to
spread such products, it is required to suppress the increase in price. For high-end products,
decorativeness is important, and its simplicity is particularly important. The simplification of the
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2
assembly of the large-sized planarized display that gives a high sense of reality simultaneously
promotes cost reduction and upgrading.
[0006]
Simplification of assembly is required. It is important to limit the increase in the number of parts
for assembly. In particular, it is important to realize the harmonization of the design of the sound
equipment accompanying the image display.
[0007]
Japanese Patent Publication No. 2002-533957
[0008]
An object of the present invention is to provide a display, an assembly structure thereof, and an
assembly method thereof which are simple to assemble.
Another object of the present invention is to provide a harmonization of the design of the
acoustic equipment associated with image display which reduces the increase in the number of
parts for assembly. Still another object of the present invention is to provide the harmonization
of the design of the acoustic equipment associated with the image display that enhances the
utility value of the exciter. Still another object of the present invention is to provide to realize the
harmonization of the design of the sound equipment accompanying the image display, which
realizes the harmonization of the design of the sound equipment accompanying the image
display.
[0009]
The display according to the present invention comprises a thin plate-like main body (4) and one
side of the main body (4), which vibrates the main body (4) to cause the main body (4) to flex
corresponding to the vibration frequency It comprises a vibrating body (18: exciter) to be
generated and a support device (29) for supporting the main body (4) on a fixed object fixed to
the earth. The support device (29) forms a vibration insulator (31) having vibration insulation
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3
with respect to the fixed object. The main body (4) forms a connector (24) on one side of the
main body (4). The connector (24) is connected to a connector (33) at an end of an electric cable
(32) for transmitting an audio signal to the vibrator (18).
[0010]
The main body (4) transmits bending vibration as a surface bending wave and resonates with air
touching the main body (4) to three-dimensionally make sound. The main body (4) is
independently moved as a speaker and freely moved alone by the user. The main body (4) is
attached to the wall or floor of various living spaces such as a Western-style room, a Japanesestyle room, a restaurant, a movie theater and a hotel as a decorative item. The body (4) is cabled
to the audio generator and the use of the connector (24) simplifies the connection simply. Such a
flat speaker (4) can be used as a decorative board (a folding screen) from which a threedimensional sound is emitted. The dust adhering to the main body (4) is easily dispelled by the
flexural vibration wave, and a protective device for protecting the speaker is not required. Such a
display realizes a new concept of display, which should be called an acoustic display rather than
a display for images, and can itself provide an ornament, in particular an acoustic decoration.
[0011]
The vibration insulator (31) is interposed between the mounting surface of the fixed object and
the lower part of the main body (4). The vibration insulator (31) makes it difficult to transmit
vibrations to a fixed object (e.g. desk, floor). The vibration insulator may be formed as a line (34).
In this case, the main body (4) can be used as a wall-mounted speaker.
[0012]
The support device can furthermore be used as a stand (29). A hole (15) is drilled in the lower
part of the body (4) and the stand (29) can be fixed to the body (4) by means of a screw (13)
passed through the hole (15). Such a screw (13) is also used to fix an audio signal generation unit
(28) for outputting an audio signal to the main body (4) (via the exterior main body 1), and the
screw (13) is It is shared by 2 applications and the assembly is simplified. The body (4) is formed
of transparent glass or a transparent film (e.g. an electret film), the surrounding area (5) of the
body (4) is opacified and the vibrator (18) is arranged in the surrounding area (5) It is placed at a
position not visible from the front side.
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4
[0013]
Holes (15) are opened at four corners of the main body (4), and the main body (4) is fixed to the
exterior main body (1) containing the image forming unit by screws (13) passing through the
holes (15). ) Is separated from the exterior body (1) and supported by the fixed object. The main
body (4) is detachable with respect to the exterior main body (1).
[0014]
The assembly structure of the display according to the present invention comprises an exterior
body (1 or 3) incorporating an audio signal generation unit (28) inside, and a wide-area
deflection diaphragm (4) attached to the front side of the exterior body (1). It consists of The
front side area of the exterior main body (1) is approximately equal to the front side area of the
wide-area deflection diaphragm (4), and the wide-area deflection diaphragm (4) has a large area
equal to the image forming surface to improve the appearance . The broad deflection diaphragm
(4) forms a vibrating body (18), and the vibration of the vibrating body (18) transmits the
vibration to the broad deflection diaphragm (4). The exterior body (1) forms a first connector (22
or 23), and the broad deflection diaphragm (4) forms a second connector (24). The first
connector (22) and the second connector (24) are detachably coupled to each other. Such
removability makes it easy to separate the large-area deflection diaphragm (4) from the exterior
body (1).
[0015]
The first connector (22) and the second connector (24) are unevenly fitted, and the uneven
fitting of the first connector (22) and the second connector (24) is performed by the exterior
main body (1) and broad-area flexural vibration The audio signal output from the audio signal
generation unit (28), which defines the relative positional relationship with the board (4), is a
vibrating body (18) via the first connector (22) and the second connector (24). Transmitted to
The connector coupling defines the relative positional relationship between the exterior main
body (1) and the wide area flexural diaphragm (4) and facilitates the attachment / detachment of
the external main body (1) and the wide area flexural diaphragm (4) .
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[0016]
The exterior main body (1) further forms the first coupler (12) at a plurality of positions, and the
wide-area deflection diaphragm (4) forms a second coupler (13) at a plurality of positions, 12) is
coupled to the second coupler (13) with the relative positional relationship described above. The
positioning of the connector determines the positioning of the first coupler (12) and the second
coupler (13), and their assembly is easy. As a result, the first coupler (12) and the second coupler
(13) can be made detachable in a one-touch manner.
[0017]
The first coupler (12) is a female screw hole formed in the exterior body, and the second coupler
is passed through the holes (15) opened at a plurality of positions of the wide-area deflection
diaphragm (4) It is a screw (13). The use of screws can simplify assembly and disassembly at
multiple locations.
[0018]
The addition of the vibration insulator (16) interposed between the first coupler (12) and the
second coupler (13) is particularly important, and the flexural vibration of the large-area flexural
diaphragm (4) is the exterior body Transmission to (1) can be effectively suppressed.
[0019]
The addition of a support (29 or 31) which supports the global deflection diaphragm (4) on a
fixed object fixed relative to the earth is particularly effective.
The support device is formed as a vibration insulator (31) having vibration insulation with
respect to the fixed object. It is particularly effective that the vibration insulator (31) be
interposed between the mounting surface of the fixed object and the lower part of the wide-area
flexural diaphragm (4) separated from the exterior main body (1).
[0020]
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6
The support device is additionally formed as a stand. A hole (15) is drilled in the lower part of the
broad deflection diaphragm (4) and the stand (29) is fixed to the wide deflection diaphragm (4)
by means of a screw (13) passed through the hole (15) . Thus, the screw (13) can be used in
various ways.
[0021]
The screw (13) is used to attach the large-area deflection diaphragm (4) to the exterior body (1).
The audio signal generation unit (28) usually forms an image forming screen, and the image
forming screen is a liquid crystal screen or a plasma forming screen.
[0022]
A method of assembling a display according to the present invention comprises the steps of
manufacturing an exterior body (1), bonding an audio signal generation unit (28) to the exterior
body (1), and forming a first connector (22) on the exterior body (1). B) bonding the vibration
body (18) to the large area bending vibration plate (4), and bonding the vibration body (18) to
the large area bending vibration plate (4). It comprises the steps of joining the second connector
(24), and releasably connecting the first connector (22) and the second connector (24). The audio
signal generation unit (28) is electrically connected to the diaphragm (4) via the first connector
(22) and the second connector (24).
[0023]
Coupling between the exterior body (1) and the large-area deflection diaphragm (4) is possible in
a one-touch manner by the concavo-convex fitting of the connectors, and such coupling
simplifies the overall assembly and further, electrical wiring Can be synchronized.
[0024]
The addition of the step of interposing the vibration insulator (16) between the large-area
deflection diaphragm (4) and the exterior body (1) is effective for maintaining the sound quality.
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7
The addition of the step of coupling the large-area deflection diaphragm (4) to the sheath body
(1) at a plurality of points is effective.
[0025]
The step of releasably coupling the first connector (22) and the second connector (24) does not
coincide in time with the step of coupling by the coupler. The assembly operation is simplified in
the case where both steps are not performed at the same time and any step precedes. In one step,
the relative positional relationship between the large-area deflection diaphragm (4) and the
exterior body (1) is defined, and the alignment of the other steps is not required.
[0026]
The step of coupling with the coupler comprises the steps of forming a screw hole in the exterior
body (1), drilling the hole (15) in the wide-area flexural diaphragm (4), and screwing the screw
(13) in the hole (15). And inserting and screwing the screw (13) into the screw hole. The
assembly by means of the screws (13) is carried out one by one and is easy to carry out.
[0027]
The step of coupling by means of the coupling effectively adds the step of interposing the
vibration insulator (16) between the hole (15) and the screw (13). Vibration isolation is
performed at the same time as the assembly, which simplifies the assembly.
[0028]
Harmonization of the design of the sound equipment associated with the image display according
to the invention can be realized. In particular, the simplification of the assembly of such a display
is promoted.
[0029]
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8
In the realization of the display according to the invention, a flat wide-area speaker is mounted
on the front side of the housing. The exterior body 1 is formed from the back side exterior body
2 and the front side (front side) exterior body 3 as FIG. 1 shows. The flat wide-area speaker (DM
speaker: distributed mode speaker) 4 is attached to the front side exterior body 3 on the front
side of the front side exterior body 3. Flat wide-area speakers are also referred to as flat
speakers.
[0030]
The flat wide-area speaker 4 is formed of a single flat transparent glass plate. The peripheral
portion 5 of the flat wide-area speaker 4 is colored at the back side to be opaque. A central
portion surrounded by the peripheral portion 5 of the planar wide-area speaker 4 is formed as a
rectangular transparent portion 6. The transparent portion 6 is formed as a window for viewing a
liquid crystal screen described later. The exterior body 1 is supported by the base 7 and stands
up from a surface such as a desk surface. On the lower side of the exterior body 1, a plurality of
image tone adjustment devices 8 are arranged.
[0031]
FIG. 2 shows details of the arrangement relationship between the front side exterior body 3 of
the exterior body 1 and the flat wide-area speaker 4. The front side exterior body 3 is formed of a
central front portion 9 and a peripheral edge portion 11 directed from the upper, lower, left, and
right portions of the central front portion 9 to the back side. The central front portion 9 and the
peripheral edge portion 11 are integrated by integral resin molding.
[0032]
At four corners of the peripheral region of the central front portion 9 located near the peripheral
edge portion 11, screw groove forming recesses 12 facing the back surface are formed as a part
of the front side exterior body 3. A screw through hole 15 through which the screw shaft 14 of
the screw 13 passes is formed in the peripheral portion 5 which is the opaque portion of the flat
wide-area speaker 4 at an opposing position facing the screw groove forming recess 12. The
vibration insulating grommet 16 is forcibly pushed into and screwed into the screw through hole
15. The vibration insulating grommet 16 is formed in a hollow cylindrical body made of an
11-05-2019
9
elastic material (example: rubber). The screw shaft 14 of the screw 13 is passed through the
cylindrical hole of the vibration insulating grommet 16. The male screw portion in which the
leading end portion of the screw shaft 14 is formed is screwed into a female screw groove
formed inside the screw groove forming recess 12. A portion of the vibration insulating grommet
16 is interposed between the outer peripheral surface of the screw shaft 14 and the inner
peripheral surface of the screw through hole 15. It is preferable that the screw shaft 14 be
formed in a half split structure in terms of weakening vibration transmission. Preferably, an
elastic collar 17 is inserted between the head portion of the screw 13 and the outer end face of
the vibration insulating grommet 16.
[0033]
The sound reproducer 18 called an exciter has its vibrating surface in surface contact with and
joined to the back surface (back surface) of the peripheral portion 5 of the flat wide-area speaker
4. The sound reproducer 18 includes a diaphragm that vibrates upon receiving a voltage
corresponding to the sound. The front surface of the diaphragm coincides with the vibration
surface 19. The sound reproducer 18 is supported by a bracket 20 fixed to the back of the
peripheral portion 5. An annular damping plate (vibration insulating plate) 21 is interposed
between the rear side portion of the bracket 20 and the annular peripheral area of the sound
generator 18. An annular sponge plate is properly used as the annular damping plate 21. The
bracket 20 is attached to the back surface (back surface) of the peripheral portion 5 via an
adhesive layer. The adhesive layer is formed as part of the joint portion of the bracket 20.
[0034]
A lower portion of the central front portion 9 of the front side exterior body 3 is formed as a
connector mounting recess 22. The display main body side connection connector 23 is fitted on
the concave side of the connector mounting recess 22. The speaker side connection connector
24 is attached to the back side of the lower portion of the peripheral portion 5. The needle-like
convex portion of the display main body side connection connector 23 is inserted into the
concave portion of the speaker side connection connector 24. The sound corresponding voltage
is transmitted from the display main body side connection connector 23 to the speaker side
connection connector 24. The voltage-vibration converter (not shown) of the sound generator 18
is electrically connected to the electrode terminal 26 of the speaker connector 24 via the cable
25. As the vibration converter (vibration inertia plate), an electrodynamic exciter, a piezoelectric
exciter, a transparent piezoelectric film, and an electret film can be appropriately used as
introduced in the above-mentioned Patent Document 1.
11-05-2019
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[0035]
In the flat wide-area speaker 4 that receives the sound corresponding vibration generated in the
sound generator 18, vibration deflection corresponding to the sound corresponding vibration is
generated. It is known that the speed at which the vibration deflection propagates in the planar
wide-area speaker 4 is equal to the speed of the sound wave propagating in the air with which
the planar wide-area speaker 4 contacts. A vibration corresponding to the vibration deflection of
the flat wide-area speaker 4 is transmitted to the air. Thus, the flat wide-area speaker 4
corresponds to a diaphragm of a known speaker vibrating at the same frequency as the sound.
The vibration deflection of the flat wide-area speaker 4 is attenuated by the vibration insulating
grommet 16 and hardly transmitted to a rigid body such as the front side exterior body 3. The
flexural vibration of the sound generator 18 is attenuated by the annular damping plate 21 and
hardly transmitted to the air on the side.
[0036]
FIG. 3 shows an embodiment of a method of assembling a display according to the invention.
Assembling step S1: Screw through holes 15 are formed at the four corners of the flat wide-area
speaker 4 described above. The vibration insulating grommet 16 is fitted into the screw through
hole 15, and the peripheral surface of the partial region of the vibration insulating grommet 16 is
closely joined to the screw through hole 15. The elastic collar 17 is applied to the outer end face
of the vibration isolation grommet 16 or is fitted into the axial center hole of the vibration
isolation grommet 16. Assembly step S2: Prior to the assembly step S1 or simultaneously with
the assembly step S1, as shown in FIG. 4, the annular damping plate 21 is fitted in the outer
peripheral side open recess 27 on the back side of the sound generator 18 .
[0037]
Assembly Step S3: Next, the bracket 20 is applied to the back surface of the sound generator 18
or the back surface of the annular damping plate 21 so that the front surface of the joint portion
of the bracket 20 is pressed to the back surface of the peripheral portion 5 of the front exterior
body 3 . Such an assembly can be automated. An adhesive surface that conforms to the front of
the interface of the bracket 20 adhesively bonds to the back of the peripheral portion 5.
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11
[0038]
Assembly Step S4: As shown in FIG. 2, the sound generator 18 and the electrode terminal 26 of
the speaker side connection connector 24 are electrically connected by the cable 25. Assembly
Step S5: The front side exterior body 3 is made relatively close to the flat wide-area speaker 4.
When the front exterior body 3 and the flat wide area speaker 4 approach, the display main body
side connection connector 23 is engaged with the speaker side connection connector 24 in a
concavo-convex manner, and the front exterior body 3 and the flat wide area speaker 4 are
coupled at the specified coupling position . The display body side connection connector 23 and
the speaker side connection connector 24 define the relative positional relationship between the
front side exterior body 3 and the flat wide-area speaker 4. The screw shaft 14 of the screw 13 is
inserted into the elastic collar 17. The screw shaft 14 is passed through the vibration insulating
grommet 16, and the leading end portion of the screw shaft 14 is screwed into the female screw
groove of the screw groove forming recess 12. Such screw connection is performed at four
places.
[0039]
Assembly Step S6: The liquid crystal display panel 28 is fitted into the front side exterior body 3.
The liquid crystal display panel 28 can positionally coincide with the rectangular window
(transparent portion) of the front side exterior body 3 as shown in FIG. 5.
[0040]
FIG. 6 shows a mounting stabilizer when the flat wide-area speaker 4 is placed on a tabletop. The
mounting / stabilizing device is fitted to the stand bar 29 coupled to the elastic collar 17 or the
screw shaft 14 of the screw 13 and the lower two corner orthogonal corner sites of the four
corners of the flat wide-area speaker 4 The vibration isolation damper 31 is formed. The stand
bar 29 is tightened by a screw 13 which is also used to attach the flat wide-area speaker 4 to the
front side exterior body 3 and fixed to the flat wide-area speaker 4. As shown in FIG. 7, the flat
wide-area speaker 4 is grounded to the tabletop via the vibration isolation damper 31 and the
stand bar 29, and is provided on the tabletop by two vibration isolation dampers 31 and two
stand bars 29. It is stably mounted and supported on such a surface.
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12
[0041]
FIG. 7 shows that in such a mounting stable state, as shown in FIG. 7, the transparent portion 6 is
inclined at an appropriate angle θ of 90 degrees or near 90 degrees with respect to the tabletop
surface. The flat wide-area speaker 4 is separated from the exterior body 1 and separated
mechanically and independently. In this case, the other connector 33 (see FIG. 6) at the end of
the other cable 32 is inserted into the speaker connector 24 at the speaker connector 24. The
other end of the other cable 32 is connected to the liquid crystal display panel 28. The other
cable 32 has the correct length so that the planar wide area speaker 4 can be moved freely on
the surface. When the flat wide-area speaker 4 is detached from the exterior body 1, the front
side of the liquid crystal display panel 28 is completely exposed to the front side, as shown in
FIG. The user who views the display screen of the liquid crystal display panel 28 places the flat
wide-area speaker 4 at a preferred position on a surface such as a desk surface or a floor and
prefers the three-dimensional acoustic feeling freely. Can be enjoyed.
[0042]
FIG. 8 shows another embodiment of the single installation method of the flat wide-area speaker
4. The present embodiment differs from the embodiment of FIG. 7 in that it is wall-mounted as
shown in FIG. Small annular members 35 at both ends of a flexible linear object 34 such as a
string, a wire, or a chain are applied to the opening on the back side of the screw through hole
15 of the flat wide-area speaker 4. The screw shaft 14 of the screw 13 is passed through the
common axial center of the screw through hole 15 and the small annular tool 35, and the nut 36
is screwed into the male screw groove at the leading end of the screw shaft 14.
[0043]
FIG. 9 shows an installation method for hanging the flat wide-area speaker 4 on a wall in a
hanging manner. The central portion of the line 34 is suspended from the hooks 38 attached to
the wall 37 and supported by the wall 37. A decorative screw such as a wood screw is used as
the hook 38. The same screw 13 is used commonly for both hanging on the wall and mounting of
the exterior body 1.
[0044]
The display according to the present invention is not limited to the liquid crystal type, and may
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13
be properly used for the plasma type.
[0045]
FIG. 1 is an oblique axis projection view showing an embodiment of an assembly structure of a
display according to the present invention.
FIG. 2 is a cross-sectional view taken along line II-II of FIG. FIG. 3 is an oblique-axis projection
view showing another embodiment of the assembly structure of the display according to the
present invention. FIG. 4 is a cross-sectional view showing the bracket. FIG. 5 is an oblique axis
projection showing still another embodiment of the assembly structure of the display according
to the present invention. FIG. 6 is an oblique axial projection showing a further form of
implementation of the display assembly according to the invention. FIG. 7 is an oblique axis
projection showing still another embodiment of the assembled structure of the display according
to the present invention. FIG. 8 is an oblique axis projection showing still another embodiment of
the assembly construction of the display according to the present invention. FIG. 9 is an obliqueaxis projection showing still another embodiment of the assembled structure of the display
according to the present invention.
Explanation of sign
[0046]
DESCRIPTION OF SYMBOLS 4 ... Main body (wide area | region bending vibration board) 5 ...
Surrounding area 12 ... 1st coupling tool 13 ... Screw (2nd coupling tool) 15 ... Hole 16 ...
Vibration insulator 18 ... Vibrating body (exciter) 29 ... Support device (stand) 22 ... 1st connector
24 ... 2nd connector (connector) 28 ... Audio signal generation unit 29 ... Support tool (stand) 31
... Support tool (vibration insulator) 32 ... Electric cable 33 ... Connector 34 ... Wire
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