JP2004129115A - Apparatus for manufacturing display unit having built-in speaker and method threfor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing a display unit having a built-in speaker, and method threfor, capable of rigidly controlling a pressurization amount applied to an exciter or a cushion layer, and eliminating dust and waste from the vibration space. <P>SOLUTION: A transparent panel 1 and an internal decorative panel 4 are respectively secured on a holding mechanism 6b of a top plate 6 and an internal decorative panel holding stand 9. The exciter is pasted on an exciter mounting area 4b of the internal decorative panel via a sponge for the exciter using an adhesive agent, and a sponge for the transparent panel is also pasted on the periphery of the internal decorative panel. Next, after the adhesive agent is attached on the exposed surfaces of both the exciter and the sponge for the transparent panel, the top plate is rotated in the direction shown by an arrow A, so as to connect lock parts 6c, 7c. Thereafter, air is injected from an air cylinder 10. By adjusting an air injection amount from the air cylinder, the pressure amount applied to the exciter and the cushion layer is rigidly controlled. Further, working inside a clean booth enables the elimination of dust and waste from the vibration space. <P>COPYRIGHT: (C)2004,JPO

Description

TECHNICAL FIELD OF THE INVENTION
[0001]
The present invention relates to a manufacturing apparatus and a manufacturing method of a speaker-integrated display that generates sound from a panel surface of a display, and more particularly to a manufacturing apparatus and a manufacturing method of a speaker-integrated liquid crystal display.
[0002]
[Prior art]
In recent years, a stereo speaker function has been realized on the display surface by using a flat and transparent panel that protects the display screen of the display as a speaker diaphragm, and the image that is the source of sound on the screen and the actual sound source And a speaker-integrated display that achieves a high sense of reality by spatially matching (for example, see Patent Document 1).
[0003]
FIG. 4 is a partial cross-sectional view including a speaker section around a conventional speaker-integrated liquid crystal display. As shown in FIG. 4, in a speaker-integrated liquid crystal display, an exciter 102 is generally attached to an end of a flat transparent panel 101, and the transparent panel 101 is interposed via a frame-shaped transparent panel sponge 103. The exciters 102 are respectively attached to the internal decorative panels 104 via the exciter sponges 102a. The exciter 102 is configured to include a magnet and a voice coil (for example, see Patent Document 2). The liquid crystal module 105 is fixed around the opening of the internal decorative panel 104. A space 111 surrounded by the transparent panel 101, the internal decorative panel 104, the liquid crystal module 105, and the transparent panel sponge 103 forms a vibration space.
[0004]
[Patent Document 1]
WO 00/02417 [Patent Document 2]
[Patent Document 1] WO 97/09842
[Problems to be solved by the invention]
The above-described speaker-integrated liquid crystal display has a structure in which a transparent panel 101 is attached to the surface of a decorative panel of a normal liquid crystal display via a transparent panel sponge 103, an exciter sponge 102a, and an exciter 102. Therefore, in assembling the same, there are the following problems to be solved.
[0006]
The first problem is to remove dust and dirt from the space 111. The space 111 is not only an important space for resonating sound, but also a space for a user to see an image displayed on the screen of the liquid crystal module 105 through the transparent panel 101. , And the merchantability decreases.
[0007]
A second problem is that it is necessary to strictly control the amount of pressure applied for bonding in consideration of the elastic force of the sponge 102a for the exciter and the sponge 103 for the transparent panel during assembly. The transparent panel sponge 103, the exciter sponge 102a, and the exciter 102 are generally attached to the transparent panel 101 and the interior decorative panel 104 with an adhesive or an adhesive tape. At the time of attachment, it is necessary to prevent variations in strength performance and reliability. In order to obtain sufficient adhesive strength using an adhesive or adhesive tape, it is necessary to apply a certain amount of weight at the time of application and maintain the initial application strength. As time elapses, deterioration with time such as peeling occurs, and further, a situation such as dropping of the transparent panel 101 or the exciter 102 occurs, which leads to a reduction in the reliability of the product. On the other hand, the exciter 102 is poor in resistance to excessive external pressure due to its structure, and if the pressurizing force or stroke amount during assembly is incorrect, breakage may occur inside the exciter. In such a case, the speaker may be damaged. In addition to the loss of performance, it is difficult to check for damage from the exterior, so damage is often found in the post-assembly process, requiring extensive labor and time for repair, and productivity Also affect.
[0008]
The present invention has been made in view of the above problems, and an object of the present invention is to eliminate dust and dirt from a vibrating space when assembling a speaker portion of a speaker-integrated display that generates sound from a display panel surface. The present invention provides a manufacturing apparatus and a manufacturing method of a speaker-integrated liquid crystal display capable of ensuring stable assembling work and product quality by strictly controlling the amount of applied pressure. is there.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, at least a part of a speaker-integrated display having an internal decorative panel, an exciter including a magnetic circuit and a voice coil, and a transparent panel vibrated by the exciter. An apparatus for manufacturing a speaker-integrated display to be assembled, comprising a top plate and a pedestal having a plate-shaped base, and one main surface of the top plate and a main surface of the plate-shaped base opposite to the pedestal side. A display device with a built-in loudspeaker, characterized by having a lock mechanism capable of maintaining / releasing a state in which the display is opposed to the display.
Preferably, the plate-shaped table is movable in a direction orthogonal to the main surface of the pedestal facing the plate-shaped table.
[0010]
According to the present invention, there is provided a method for manufacturing a speaker-integrated display using the apparatus for manufacturing a speaker-integrated display, the method comprising: (1) holding a transparent panel on a top plate; (2) a step of holding the internal decorative panel on the plate-like base; (3) a step of attaching an exciter cushion layer to an exciter attachment portion formed on the internal decorative panel; and (4) a cushion layer for the exciter. (5) attaching a transparent panel cushion layer to the periphery of the interior decorative panel, and (6) attaching a transparent panel to the exciter and the transparent panel cushion layer. (7) a main surface of the top plate on which the transparent panel is held and a main surface of the plate-shaped base on which the internal decorative panel is held; Speaker integrated display method for producing characterized in that it comprises the steps of: locking the opposing state, a, is provided.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing each part of a speaker-integrated liquid crystal display assembled using the device according to the present invention. As shown in FIG. 1, an opening 4 a is formed in the internal decorative panel 4 in accordance with a screen display range of the liquid crystal module 5. The liquid crystal module 5 is fixed around the opening 4a. Exciter attachment portions 4b for attaching the exciter 2 are formed at both left and right end portions of the internal decorative panel 4, and an opening 4c is provided at the center of the exciter attachment portion 4b. A ring-shaped exciter sponge 2a is attached around the opening 4c on the side opposite to the side where the liquid crystal panel is located. A step portion is formed on the side of the exciter 2 facing the internal decorative panel 4, and the exciter 2 in the region where the step portion is formed is inserted into the sponge 2a for the exciter and adhered. The exciter sponge 2a becomes a cushion layer when the exciter 2 vibrates. The outer diameter of the exciter 2 in the region where the step portion is formed is designed to be smaller than the diameter of the opening 4c of the exciter attachment portion 4b of the inner decorative panel 4. Therefore, when the exciter 2 vibrates, the surface of the exciter 2 on the side of the internal decorative panel 4 does not receive an impact from the internal decorative panel 4, and an accident occurs such that the exciter 2 is broken inside. Can be avoided. Further, the transparent panel sponge 3 is attached to the outer periphery of the internal decorative panel 4, and the flat transparent panel 1 is attached to the transparent panel sponge 3 and the exciter 2. The transparent panel sponge 3 is a cushion layer when the exciter 2 vibrates. The flat transparent panel 1 also serves as a protection panel for protecting the liquid crystal display screen. Since the exciter mounting portion 4b is formed outside the screen display range of the liquid crystal module, the exciter 2 does not block the optical path of an image from the liquid crystal module.
[0012]
FIG. 2 is a perspective view of an apparatus for manufacturing a speaker-integrated display according to the present invention. As shown in FIG. 2, the apparatus for manufacturing a speaker-integrated display according to the present invention includes a top plate 6 and a pedestal 7, and the top plate 6 and the pedestal 7 are connected by a hinge 8. The top plate 6 is provided with a positioning structure 6a and a holding mechanism 6b for attaching the transparent panel with high positional accuracy. As a holding method of the holding mechanism 6b, for example, an air suction method is used. In this case, a through hole 6d is formed from the surface of the holding mechanism 6b facing the pedestal 7 to the surface of the top plate 6 opposite to the pedestal 7, and an external suction pump (not shown) is formed through the through hole 6d. Thus, the transparent panel placed on the suction surface 6e of the holding mechanism 6b can be sucked and held.
[0013]
On the other hand, the pedestal 7 is provided with a stroke structure including an air cylinder 10, and a plate-shaped internal decorative panel holding table 9 is placed on the upper surface of the air cylinder 10. At this time, a hole is formed in the bottom surface of the internal decorative panel holding base 9 at a position matching the central axis 10a of the air cylinder 10, and the central axis 10a of the air cylinder 10 is fitted into this hole. When compressed air is sent from an external compressor (not shown) to the air cylinder 10, air is blown out from the air blowing holes 10b on the upper surface of the air cylinder 10, and the internal decorative panel holding base 9 moves in the direction of arrow B (floating). Let it. At this time, it is possible to control the stroke amount and the movement (floating) continuation time of the internal decorative panel holding base 9 by adjusting the amount and time of the air jet from the air jet holes 10b. The internal decorative panel holding base 9 is provided with a step 9a and an opening 9b for positioning and fixing the internal decorative panel to which the liquid crystal module is fixed on the back surface.
[0014]
The pedestal 7 is provided with a lock portion 7c. A lock portion 6c is rotatably attached to the top plate 6 via a hinge 6f. The top plate 6 is dropped on the pedestal 7 and the interior decorative panel holding base 9, and the hook-shaped portion at the tip of the lock portion 6 c is hooked on the handle portion of the lock portion 7 a to be locked. It is fixed in a state of falling on the internal decorative panel holding base 9.
[0015]
Next, a process of assembling the speaker-integrated liquid crystal display using the apparatus for manufacturing a speaker-integrated liquid crystal display according to the present invention will be described in detail with reference to FIG. 3, parts that are the same as the parts in FIGS. 1 and 2 are given the same reference numerals, and redundant description will be omitted as appropriate. First, the apparatus for manufacturing a speaker-integrated liquid crystal display according to the present invention is installed in a clean booth.
[0016]
Next, the transparent panel 1 is placed at an accurate position on the holding mechanism 6b while being positioned by the positioning structure 6a of the top plate 6. Next, the transparent panel 1 is suctioned and fixed to the suction surface 6e of the holding mechanism 6b by suctioning through the through hole 6d of the holding mechanism 6b with an external suction pump (not shown).
[0017]
Next, as shown in FIG. 3, the internal decorative panel 4 having the liquid crystal module fixed to the back surface is inserted into the opening of the internal decorative panel holding base 9, and the internal decorative panel holding section 9 is inserted into the stepped portion. Is placed. Next, an exciter sponge is adhered to the periphery of the opening 4c of the exciter attachment portion 4b provided at both left and right end portions of the internal decorative panel 4 using an adhesive. Subsequently, as described above, the exciter is inserted into the extruder sponge in the region where the stepped portion is formed, and is adhered to the exciter sponge with an adhesive. Further, a sponge for a transparent panel is attached to the outer periphery of the interior decorative panel 4. Then, after the adhesive is attached to the exposed surfaces of the exciter and the sponge for the transparent panel, the top plate 6 holding the transparent panel 1 is rotated in the direction of the arrow A around the hinge mechanism 8 to rotate the top plate. The top plate 6 is lowered onto the pedestal 7 and the interior decorative panel holding base 9, and the hook-shaped portion at the tip of the lock portion 6 c is hooked on the handle portion of the lock portion 7 c to lock the top plate 6 to the pedestal 7 and the internal decorative panel. It is fixed in a state of falling on the panel holding base 9.
[0018]
In this state, when compressed air is sent into the air cylinder 10 from the outside, the air ejected from the air ejection port 10b pushes up the internal decorative panel holding base 9 in the arrow B direction. At this time, by adjusting the air pressure of the compressed air sent from the outside and / or the delivery amount per unit time, the stroke amount of the internal decorative panel holding base 9, and therefore, to the sponge for the transparent panel, the sponge for the exciter, and the exciter. Can be controlled. The pressurizing time can be controlled by adjusting the compressed air delivery time.
[0019]
Next, when a predetermined pressurizing time has elapsed, the suction and fixation of the transparent panel 1 by the holding mechanism 6b is released, and then the supply of compressed air from the outside is cut off to release the air from the air outlet 10b of the air cylinder 10. After stopping the ejection of the air, the lock between the lock portions 6c and 7c between the top plate 6 and the pedestal 7 is released, and the top plate 6 is rotated around the hinge mechanism 8 in the direction opposite to the arrow A direction. Then, the top plate 6 is separated from the transparent panel attached to the internal decorative panel.
[0020]
Finally, the assembled product in which all the parts are assembled is taken out, and all the steps of the method of manufacturing the speaker-integrated liquid crystal display according to the present invention are completed.
[0021]
In the above description, the speaker-integrated liquid crystal display has been assembled in the clean booth. However, the internal decorative panel holding base 9 and the top plate 6 are provided with a structure capable of sucking ambient air to provide a transparent panel. Dust, dust, and the like that are going to enter the space surrounded by the interior decoration panel 1 and the interior decoration panel 4 may be eliminated (sucked) at least in the step of attaching the transparent panel to the interior decoration panel. As a result, work in a normal environment can be realized without requiring work in a clean booth, and not only the same effect as described above can be obtained, but also the work space can be reduced and production efficiency can be reduced. Also leads.
[0022]
As described above, the present invention has been described based on the preferred embodiments. However, the manufacturing apparatus and the manufacturing method of the speaker-integrated display of the present invention are not limited to only the above-described embodiments, and the present invention is not limited thereto. A manufacturing apparatus and a manufacturing method of a speaker-integrated display in which various changes are made without changing the gist are also included in the scope of the present invention. For example, the speaker-integrated display is not limited to a liquid crystal display, but may be a flat display such as a plasma display or a CRT display. Further, the stroke structure for moving the internal decorative panel holding base is not limited to the air cylinder, and any mechanism for moving the internal decorative panel holding base in a direction perpendicular to the main surface of the base, such as various cam mechanisms, may be used. It may be something like this. Further, when the distance for moving the internal decorative panel holding base is constant, the stroke structure may be omitted. The mechanism for connecting the top plate and the pedestal is not limited to the hinge mechanism, and may be a guide rail or the like. Furthermore, it goes without saying that the lock mechanism between the top plate and the pedestal is not limited to the hook-shaped hooking mechanism, but may be a general mechanical or electric lock mechanism. The cushion layer of the exciter and the transparent panel is not limited to a sponge, and any elastic body having a suitable elasticity such as urethane foam may be used. An adhesive tape or the like other than the adhesive may be used for bonding the parts. The cushion layer for the exciter, the cushion layer for the transparent panel, and the exciter may be attached to the internal decorative panel before placing the internal decorative panel on the internal decorative panel holding base. The internal decorative panel may be mounted on the internal decorative panel holding base in a state where the display module is not fixed. Further, the internal decorative panel may be held on the top plate, and the transparent panel may be held on the internal decorative panel holding base.
[0023]
[Explanation of effects]
As described above, the apparatus for manufacturing a speaker-integrated display according to the present invention includes a sponge for an exciter, a sponge for a transparent panel, and an exciter adhered to a transparent panel and an interior decorative panel in a state where a constant pressure is applied. It can maintain stable adhesive strength, prevent peeling due to aging, and prevent internal damage to the exciter, thereby improving production efficiency and product reliability. It is possible.
[0024]
In addition, since the method for manufacturing a speaker-integrated display according to the present invention is performed in a clean environment, it is possible to eliminate dust and dirt from a space surrounded by a transparent panel or an interior decorative panel. It is possible.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing each part of a speaker-integrated liquid crystal display assembled using a device according to the present invention.
FIG. 2 is a perspective view of an apparatus for manufacturing a speaker-integrated display according to the present invention.
FIG. 3 is a perspective view for explaining the method for manufacturing the speaker-integrated display according to the present invention.
FIG. 4 is a partial cross-sectional view including a speaker section around a conventional speaker-integrated liquid crystal display.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Transparent panel 2 Exciter 2a Exciter sponge 3 Transparent panel sponge 4 Internal decorative panel 4a, 4c Opening 4b Exciter mounting part 5 Liquid crystal module 6 Top plate 6a Positioning structure 6b Holding mechanism 6c, 7c Lock part 6d Through-hole 6e Suction surface 6f Hinge 7 Pedestal 8 Hinge 9 Internal decorative panel holding base 9a Step 9b Opening 10 Air cylinder 10a Central shaft 10b Air outlet

Claims (19)

An apparatus for manufacturing a speaker-integrated display for assembling at least a part of a speaker-integrated display having an internal decorative panel, an exciter including a magnetic circuit and a voice coil, and a transparent panel vibrated by the exciter, comprising: It has a plate and a pedestal provided with a plate-shaped table, and can maintain / cancel a state where one main surface of the top plate and a main surface of the plate-shaped table opposite to the pedestal side are opposed to each other. An apparatus for manufacturing a speaker-integrated display, comprising: a lock mechanism. The apparatus for manufacturing a speaker-integrated display according to claim 1, wherein a structure for positioning the transparent panel and holding the transparent panel is provided on the one main surface of the top plate. . The speaker integrated type according to claim 1 or 2, wherein the plate-like base has a structure capable of positioning and holding the internal decorative panel to which the internal decorative panel or the display module is fixed. Display manufacturing equipment. The apparatus according to any one of claims 1 to 3, wherein the plate-shaped table is movable in a direction orthogonal to a main surface of the pedestal facing the plate-shaped table. . The apparatus for manufacturing a speaker-integrated display according to claim 4, further comprising control means for controlling a moving amount of the plate-like table. The air cylinder fixed to the pedestal is a means for moving the pedestal in a direction perpendicular to the main surface of the pedestal facing the pedestal, and the central axis of the air cylinder is fitted to the pedestal. The manufacturing apparatus for a speaker-integrated display according to claim 4 or 5, wherein a matching hole is formed. The apparatus for manufacturing a speaker-integrated display according to any one of claims 4 to 6, further comprising control means for controlling a period during which the plate-like table is moving. The apparatus for manufacturing a speaker-integrated display according to any one of claims 1 to 7, wherein the top plate and the pedestal are connected by a hinge mechanism. 9. The apparatus for manufacturing a speaker-integrated display according to claim 2, wherein a structure for sucking and holding the transparent panel is provided on the one main surface of the top plate. The apparatus for manufacturing a speaker-integrated display according to any one of claims 1 to 9, wherein the plate-like table and / or the top plate are provided with a suction structure for sucking air around them. . A method for manufacturing a speaker-integrated display using the apparatus for manufacturing a speaker-integrated display according to any one of claims 1 to 10, wherein: (1) a step of holding a transparent panel on a top plate; A step of holding the decorative panel on the plate-like base; (3) a step of attaching an exciter cushion layer to an exciter mounting portion formed on the internal decorative panel; and (4) attaching an exciter to the exciter cushion layer. (5) attaching a transparent panel cushion layer to the periphery of the interior decorative panel; (6) attaching a transparent panel to the exciter and the transparent panel cushion layer; The main surface of the top plate where the transparent panel is held and the main surface of the plate-shaped base where the internal decorative panel is held face each other Speaker integrated display manufacturing method characterized in that it comprises the steps of click, the. The method of manufacturing a speaker-integrated display according to claim 11, further comprising a step of moving the plate-shaped table in a direction orthogonal to a main surface of the pedestal facing the plate-shaped table. 13. The method of manufacturing a speaker-integrated display according to claim 11, wherein the step (3) and / or the step (5) are performed prior to the step (2). 14. The method according to claim 11, wherein the steps (3) and (4) are performed prior to the step (2). The method of manufacturing a speaker-integrated display according to any one of claims 11 to 14, wherein the steps (3) to (6) are performed using an adhesive or an adhesive tape. During and / or immediately before the step (6), the space around the internal decorative panel held by the plate-like table and the space around the transparent panel held by the top plate are cleaned. The method for manufacturing a speaker-integrated display according to any one of claims 11 to 15, further comprising a cleaning step for reducing the number of times of the display. The method according to any one of claims 11 to 15, wherein the series of steps are performed in a clean booth. 18. The method for manufacturing a speaker-integrated display according to claim 11, wherein a display module is fixed to the interior decorative panel before the step (2). The method according to claim 18, wherein the display module is a liquid crystal module.

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