JP2003311842A - Touch panel, apparatus and method for adhering film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a touch panel in which films are adhered to each other while the air is exhausted from between the films by easily and surely positioning the films based on a mechanical operation and to provide an apparatus and a method for adhering the films. <P>SOLUTION: The touch panel comprises an elastic thin plate 1 having a snap flask for positioning an adhering film 5 with an opening 3; a bearing 40 for oscillatorily bearing a reverse shaft 4 fixed to one end of the plate 1; an underlay plate 60 having a form 8 carved on an upper surface and disposed at a lower position than the shaft 4 near the bearing 40 for positioning the film 7; and a roller 9 made of an elastic material for imparting a pressing force to the upper surface of the plate 60. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for attaching films to each other, and mainly relates to a film attaching device for attaching an adhesive film or the like to a touch panel attached to a display screen and used. Regarding the method. Further, the present invention relates to a touch panel manufactured by the film sticking device according to the present invention.

[0002]

2. Description of the Related Art For example, as a work for laminating films, there is a work for laminating a flexible laminating material on a laminated thin plate such as a touch panel body. Traditionally, such work is manual.

That is, the touch panel body has a thickness of 0.
2 to 4.0 mm, a rectangle having an outside dimension of 40 to 90 mm on a side, and a material made of PET film or glass are prepared. Position it on the work surface. On the other hand, as a bonding material, a film having a thickness of 100 to 300 μm, outer dimensions substantially the same as those described above, and made of a PET film or a polarizing material is prepared. An adhesive film is formed on one surface of the laminating material, and a separate film is previously attached to the entire surface of the adhesive film in order to prevent adhesion of dust and the like.

Then, after separating the separate film from the laminating material, the adhesive film of the laminating material is gradually approached from one side of the touch panel main body positioned on the workbench to separate the touch panel main body and the laminating material. Overlap. Almost parallel to this step, air (air bubbles) remaining between the touch panel body and the bonding material was removed by pressing with a hand-held roller or the like.

[0005]

However, it is necessary for the worker to pay close attention to the work so that the laminating material does not laterally shift with respect to the touch panel body. This not only imposes an unnecessary burden on the worker, but also prevents the process from being shortened in time. Also,
In order to perform the above-mentioned manual work efficiently and with almost no defective products, the skill of the worker is required.
Therefore, immediate automation of the above work is desired.

Therefore, the object of the present invention is to position the films easily and surely based on a mechanical operation,
Provided are a touch panel, a film sticking device, and a method for sticking films while removing air from the spaces.

[0007]

SUMMARY OF THE INVENTION An adhesive film sticking apparatus according to the present invention is an elastic thin plate having a punched frame for positioning the sticking film and a mold for positioning the adherend film formed by engraving on the upper surface. An underlay plate that receives the thin plate in an inclined posture, a pin that positions the elastic thin plate on the underlay plate, and a roller made of an elastic material that presses the elastic thin plate against the upper surface of the underlay plate are provided.

The adhesive film sticking apparatus according to the present invention is
An elastic thin plate having a punched frame for positioning the adhesive film, a bearing for swingably supporting an inversion shaft fixed to one end of the elastic thin plate, and a formwork for positioning the adhered film are engraved on the upper surface. The underlay plate is disposed near the reversing shaft in the vicinity of the bearing, a pin for positioning the elastic thin plate on the underlay plate, and a roller made of an elastic material for pressing the elastic thin plate against the upper surface of the underlay plate. The elastic thin plate is elastically deformed by moving the roller from one end to the other end of the elastic thin plate in an inclined posture in which one end is supported by the reversing shaft and the other end is received by the upper surface of the underlying plate. While pressing it, press it against the upper surface of the underlay plate.

Further, the film sticking apparatus according to the present invention comprises one air cylinder for pressing the roller against the upper surface of the underlay plate, and another air cylinder for reciprocating the roller between one end and the other end of the elastic thin plate. .

Further, in the film sticking apparatus according to the present invention, the bearing portion is fixed to the main frame, the underlay plate is placed on the main frame, and the underlay plate is positioned by the pin protruding from the main frame.

Further, in the film sticking apparatus according to the present invention, a pin insertion hole is formed on the outside of the punching frame of the elastic thin plate, and a bottom raising plate facing the underlay plate with the reversing shaft interposed is arranged near the bearing portion. In the state in which the elastic thin plate is inverted around the inversion axis and is received by the bottom raising plate, the pin protruding on the upper surface of the bottom raising plate fits into the pin fitting hole.

The film sticking method according to the present invention comprises a step of positioning the sticking film on the elastic thin plate, a step of positioning the sticking film having an adhesive layer formed in the vicinity of the elastic thin plate, and the sticking film on the elastic thin plate. The step of positioning the adhesive film, the step of facing the adhesive layer of the adhesive film to the adherend film in a posture in which the adhesive film is inclined upward, and a roller made of an elastic material is run in the direction in which the adhesive film is inclined upward. At the same time, the roller includes a step of pressing the adhesive film together with the elastic thin plate against the adherend film, and a step of separating the adhesive film from the slightly adhesive layer of the slightly adhesive tape.

The method for attaching a film according to the present invention comprises a step of closing a frame with a slightly adhesive tape by attaching a slightly adhesive tape having a slightly adhesive layer formed on the surface of an elastic thin plate having a frame. The step of attaching the other side of the adhesive film with the adhesive layer formed on one side to the slightly adhesive layer of the slightly adhesive tape that is exposed to the back side of the thin plate through the punching frame, and the adherend film near one end of the elastic thin plate. A step of positioning, and a step of rotating the elastic thin plate around its one end so that the adhesive layer of the adhesive film has an inclined posture in which it gradually separates from the other end of the elastic thin plate toward one end with respect to the adherend film, ,
Positioning the elastic thin plate with respect to the adhered film,
With a roller made of an elastic material that travels from the other end to one end of the elastic thin plate, a step of pressing the adhesive film with the elastic thin plate against the adherend film, and a step of separating the adhesive film from the slightly adhesive layer of the slightly adhesive tape, Is included.

In the touch panel according to the present invention, an elastic thin plate having a punched frame, a base plate for engraving a mold for positioning the adhered film on the upper surface and receiving the elastic thin plate, and positioning the elastic thin plate on the base plate. A sticking film having an adhesive layer formed thereon is manufactured by a film sticking device including a pin and a roller made of an elastic material that presses the elastic thin plate against the upper surface of the underlay plate. A step of positioning the touch panel main body on the frame of the underlay plate, a step of facing the adhesive layer of the adhesive film to the touch panel main body in a posture in which it is inclined upward, and a roller made of an elastic material is attached. While running in the direction in which the adhesive film rises and tilts, touch the touch panel together with the elastic film with the roller. A step of pressing the body, a step of separating the adhered film from the weak adhesive layer of light adhesive tape,
It is manufactured through.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION A method of laminating films using a film laminating apparatus according to an embodiment of the present invention will be described first. Below, the code | symbol of AI is attached in order of each process of the said bonding method. What is a film?
It includes thin films, tapes, sheets, chips, thin plate materials, thin panels, and the like.

Further, in the present embodiment, the touch panel body and the laminating material exemplified in the section of the prior art are applied as the film, but the gist of the present invention is to attach the films to each other. The material, shape, application, etc. are not limited. For example, a technique of laminating a film electrode and a glass electrode of a touch panel body, a touch panel body and a support formed of a film (glass or polycarbonate as a material), or an adhesive tape having an adhesive layer formed on both sides and the touch panel body. Can also be widely applied to. The touch panel body is the main body of the touch panel as a product.

A: As shown in FIG. 1, a slight adhesive tape 2 is attached to the surface of an elastic thin plate 1 made of stainless steel or the like. The elastic thin plate 1 is provided with a film setting frame 3. By closing the frame 3 for film set,
A slight adhesive tape 2 is attached to the elastic thin plate 1. At this time,
As shown in the figure, the entire area of the film setting punching frame 3 may be closed with the slightly adhesive tape 2, but the film setting punching frame 3 and the slightly adhesive tape 2 may be shifted vertically or horizontally in the figure to leave a small gap. You can

B: The elastic thin plate 1 is turned around the reversing shaft 4 fixed at one end with screws or the like, and the front and back thereof are reversed. As a result, as shown in FIG. 2, the slightly adhesive layer of the slightly adhesive tape 2 is exposed upward from the film setting frame 3 of the elastic thin plate 1 turned inside out. The other surface (lower surface in the figure) of the adhesive film 5 having an adhesive layer formed on one surface (upper surface in the drawing) is attached to the exposed slightly adhesive layer of the slightly adhesive tape 2. That is, the adhesive layer of the adhesive film 5 and a separate film (not shown) that is covered to protect the adhesive layer.
Turns upwards.

C: The above-mentioned separate film is peeled off from the adhesive layer of the adhesive film 5. This work is performed by, for example, a worker holding a short stick having an adhesive applied to the tip thereof, pressing it against the separation film, and gradually separating it from the sticking film 5, thereby separating the short stick and the separation film. May be peeled off from the adhesive film 5.

D: In parallel with or separately from the above steps, as shown in FIG. 3, the touch panel body 7 is positioned on the main frame 6 of the film sticking apparatus 10. That is, the underlay plate 6 mounted on the main frame 6
At 0, a frame 8 for panel setting, which is a substantially rectangular shallow recess, is engraved and formed by milling or the like. The touch panel body 7 is fitted into the panel setting frame 8 in a horizontal position.

E: The elastic thin plate 1 is turned around the reversing shaft 4 in the direction opposite to the step A, and the front and back thereof are turned over again. As a result, as shown in FIG. 4A, the elastic thin plate 1
The adhesive layer of the adhesive film 5 turned upside down along with the above, faces the touch panel body 7 in the panel setting frame 8 with a gap.

In the above-mentioned state, the height at which the bearing portion 40 supports the reversing shaft 4 is set above the main frame 6 within a range of 10 to 20 mm higher than the upper surface of the underlay plate 60. Therefore, the underlay plate 6
The elastic thin plate 1 which receives the other end on the upper surface of 0 has a posture in which the elastic thin plate 1 as a whole inclines upward in the forward direction of the rubber roller 9 indicated by the arrow X in FIG. That is, the distance between the adhesive layer of the adhesive film 5 attached to the elastic thin plate 1 and the touch panel body 7 gradually increases from the other end of the elastic thin plate 1 toward one end.

Further, in this state, the dowel pin 20 protruding upward from the main frame 6 and penetrating the pin hole 30 of the elastic thin plate 1 positions the elastic thin plate 1 with respect to the underlay plate 60. The dowel pin 20 will be described later.
The above-mentioned inclination angle is determined by the thickness dimension of the underlay plate 60. Therefore, if several underlay plates 60 having different thicknesses are prepared, a desired angle can be set for each product to be bonded.

F: The rubber roller 9 is made of an elastic material such as silicone rubber and is made to stand by at the position shown in FIG. 4 (a) in advance. From this state, when the rubber roller 9 is sent while rolling in the forward direction, as shown in FIG.
Is brought into close contact with the upper surface of the underlay plate 60 by the rubber roller 9. That is, the elastic thin plate 1 is a stainless (SUS304H) thin plate having a thickness of about 0.2 mm. For this reason,
The elastic thin plate 1 is attached to the underlay plate 6 by a rubber roller 9.
When it is pressed against the upper surface of 0, it elastically deforms and bends, and temporarily becomes a straight shape along the upper surface of the underlay plate 60 or the touch panel body 7. The rubber roller 9 which reciprocates as described above passes between the two dowel pins 20 arranged corresponding to the pin holes 30 shown in FIG.

As described above, in the process of elastic deformation of the elastic thin plate 1, the adhesive layer of the adhesive film 5 and the touch panel body 7 are formed.
With the operation of the rubber roller 9, the rubber rollers 9 gradually come in close contact with each other from the left to the right in the figure and are pressed against each other. Thereby, the air between the adhesive film 5 and the touch panel body 7 is discharged to the right side in the drawing while being pressed by the rubber roller 9. When the rubber roller 9 passes above the adhesive film 5 and the touch panel body 7, the adhesive film 5 and the touch panel body 7 are completely in close contact with each other. At the same time, it is possible to achieve the effect that all the air between the two can be eliminated.

Further, the thickness of the adhesive film 5 is the elastic thin plate 1.
If it is thinner than the elastic thin plate 1, the backup member 11 slightly thicker than the elastic thin plate 1 may be attached to the surface of the slightly adhesive film 2. As the backup member 11, for example, a silicon rubber sheet of about 0.3 mm is applied. By interposing this between the rubber roller 9 (FIG. 4) and the slightly adhesive film 2, the pressing force of the rubber roller 9 is applied while the adhesive film 5 and the touch panel body 7 are pressed against each other as described above. It can surely propagate to the film 5 and the touch panel body 7.

G: While rolling the rubber roller 9 in the direction opposite to the direction indicated by the arrow X in FIG. 4 (returning direction), the rubber roller 9 is returned to the position shown in FIG. Here, the position where the rubber roller 9 is made to stand by may be set so that the rubber roller 9 is retracted from the elastic thin plate 1 to the extent that the rubber roller 9 does not contact the other end of the elastic thin plate 1.

H: When the rubber roller 9 is returned to the standby position, the elastic thin plate 1 immediately returns to the inclined state shown in FIG. 4 (a). The elastic thin plate 1 that has returned is turned around the reversing shaft 4 again, and the front and back thereof are reversed. As a result, the elastic thin plate 1 returns to the state shown in FIG.

I: When the film 5 and the touch panel body 7 that have been bonded as described above are removed from the panel setting blank 3, the series of steps described above are completed. At this time, since the adhesive force between the adhesive film 5 and the touch panel body 7 is stronger than the adhesive force between the slightly adhesive tape 2 and the adhesive film 5, the adhesive film 5 is peeled off from the adhesive tape 2. However, the state of being in close contact with the touch panel body 7 is maintained.

The slight adhesive layer of the slightly adhesive tape 2 does not significantly deteriorate even if the application and peeling of the adhesive film 5 are repeated. Therefore, once step A is performed,
The same process is omitted for about 00 cycles, and the processes B to I are repeated.

The pressure-sensitive adhesive layer or the slightly pressure-sensitive adhesive layer described above is not necessarily formed on the entire surface of the adhesive film 5 or the slightly pressure-sensitive adhesive tape 2. The adhesive layer or the slightly adhesive layer may be formed by applying an adhesive so as to form a plurality of spots or a plurality of lines. Further, the adjustment of the adhesive force of the adhesive layer or the slightly adhesive layer may be performed by adjusting the components of the adhesive, but by adjusting the density of the adhesive applied in the spot shape or the linear shape as described above. Is also good.

Next, the film sticking apparatus 10 according to the embodiment of the present invention will be described. FIG. 3A shows a plan view of the main frame 6, the underlay plate 60, the bottom raising plate 61, and the bearing portion 40, which constitute the main part of the film sticking apparatus 10. The side view is the same figure (b)
It is shown in.

The bottom raising plate 61 supports the inverted elastic thin plate 1 in a horizontal posture so that the operation of attaching the adhesive film 5 to the slightly adhesive layer of the slightly adhesive tape 2 can be stably performed in the above step B. It is a thing. As shown in FIG. 6, the main frame 6 is provided with a pressing means 12 for pressing the rubber roller 9 against the underlay plate 60, a driving means 19 for reciprocating the rubber roller 9, and a control means (not shown) for controlling these. ing.

The bearing portion 40 rotatably (loosely) receives the reversing shaft 4 fixed to the elastic thin plate 1 in the above steps A and E. The reason for bearing in this way is as follows. That is, in the above step F,
When the rubber roller 9 moves in the forward direction, the elastic thin plate 1 gradually elastically deforms and is pressed against the upper surface of the underlay plate 60. As a result, the entire elastic thin plate 1 is lowered. The elastic thin plate 1 is a dowel pin 20 (FIG. 4).
The horizontal movement is restricted by. For this reason, a mechanism that allows the elastic thin plate 1 to swing with the movement of the rubber roller 9 is indispensable.

Specifically, the bearing portion 40 has a vertical groove 41 wider than the shaft diameter of the reversing shaft 4, and the reversing shaft 4 is formed in the vertical groove 41 together with a bearing (not shown) made of synthetic resin.
And a coil spring 41c for urging the bearing upward is loaded in the vertical groove 41. With such a configuration, when the entire elastic thin plate 1 is lowered by the pressing force of the rubber roller 9, the reversing shaft 4 can also be lowered against the biasing force of the coil spring 41c.

A bridge piece 42 is provided at the upper end of the bearing portion 40.
Are fixed by screws 43. When the screw 43 is loosened and the bridge piece 42 is removed, the vertical groove 41 is opened, and the reversing shaft 4 can be removed together with the above bearing. This is for the convenience of exchanging the elastic thin plate 1 with another specification according to the size and outer shape of the film to be laminated using the film laminating apparatus 10.

When the reversing shaft 4 of the elastic thin plate 1 is attached to the bearing portion 40, first, the reversing shaft 4 is inserted into the vertical groove 41 together with the bearing, and then the screw 43 is loosened.
As shown in FIG.
The dowel pin 20 is penetrated as shown in FIG. continue,
Tighten the screw 43 to fix the bridge piece 42. By performing such a setting, the dowel pin 20 penetrates the pin hole 30 and the elastic thin plate 1 is positioned each time the elastic thin plate 1 is repeatedly inverted. Further, even when the reversing shaft 4 is removed from the bearing portion 40 and attached to the bearing portion 40 again, the adjustment of the attachment between the bearing portion 40 and the elastic thin plate 1 is not necessary, so only the work of attaching the reversing shaft 4 to the bearing portion 40 is required. Then, the elastic thin plate 1 can be attached and detached. A screw may be applied to the screw 43 so that the screw 43 can be manually turned without using a spanner or the like.

The pressing means 12 is a support shaft 90 for the rubber roller 9.
Brackets 91 for supporting both ends of the rubber frame 9 are provided on both sides of the main frame 6, and the support rod 9 of the rubber roller 9 is supported by the operating rod 14 of the air cylinder 13 provided at the upper end of the bracket 91.
0 is pressed downward (underlay plate 60). Both ends of the support shaft 90 are inserted into the elongated holes 15 opened in the bracket 91 and extending in the vertical direction. A rubber roller 9 is rotatably attached around the support shaft 90. Since the support shaft 90 itself does not rotate, the actuating rod 14 directly presses the support shaft 90 with the buffer material 16 made of synthetic resin provided at the tip thereof. It is preferable to set this pressure to 1 to 16 kg / cm ² .

Instead of the air cylinder 13, a mechanism for urging the support shaft 90 downward by a coil spring or the like may be adopted.
By applying the air cylinder 13 as the pressure source of the pressure means 12 as described above, the following advantages can be obtained. That is, the load applied to the rubber roller 9 can be easily increased or decreased by operating the pressure reducing valve or the like. Moreover, the load applied to the rubber roller 9 can be kept constant without being affected by the stroke of the operating rod 14. Therefore, even if the stroke of the operating rod 14 changes due to a change in the diameter of the rubber roller 9 or a change in the thickness of the underlay plate 60, the air pressure to be supplied to the air cylinder 13 can be changed. No need to make frequent adjustments.

The driving means 19 includes an air cylinder 18 having an operating rod 17 for moving the bracket 91 back and forth in the direction in which the rubber roller 9 reciprocates (left and right in the figure), and the operating rod 1.
The guide rails (not shown) are fixed to both sides of the main frame 6 in a horizontal posture parallel to the guide rails 7 and engage the brackets 91 slidably.

By the guide rails described above, the reaction force of the air cylinder 13 pressing the rubber roller 9 is received. Therefore, the actuating rod 17 receives only the compressive or tensile load in its advancing / retreating direction. It is desirable that the traveling speed of the rubber roller 9 is forward at a low speed in the range of 0.3 to 2.0 cm / sec, and that the air cylinder 18 is backward at the highest speed. The setting or change of the traveling speed can be easily performed only by increasing or decreasing the opening degree of the adjusting valve provided in the air cylinder 13.

As a drive source of the drive means 19, a cam mechanism or a crank mechanism may be applied instead of the air cylinder 18. Alternatively, the rubber roller 9 may be manually reciprocated together with the bracket 91 by omitting such a driving source. The above-mentioned control means is a technique for controlling the operation of the valve that blocks or switches the compressed air supplied to the air cylinders 13 and 18. Since this is a well-known technique such as a sequence circuit using well-known relays and sensors, description thereof will be omitted.

As shown in FIG. 7, the underlay plate 60 has an upper surface member 63 having a panel setting frame 8 and pin fitting holes 62 formed therein, and a lower surface having the dowel pins 20 protruding upward and having pin fitting holes 64 formed therein. It has a double structure in which the material 65 is overlapped. The upper surface member 63 is slidable with respect to the lower surface member 65 within a range corresponding to a gap between the pin insertion hole 62 and the dowel pin 20, and the position can be adjusted.

The lower surface member 65 is positioned with respect to the main frame 6 by fitting the dowel pin 66 provided on the upper surface of the main frame 6 into the pin fitting hole 64.
That is, the lower surface material 65 is directly positioned on the main frame 6 by the dowel pin 66, and the dowel pin 2
0 is also positioned with respect to the main frame 6.

On the other hand, the upper surface material 63 is the dowel pin 2
As shown in FIG. 4, the positions of the adhesive film 5 and the touch panel body 7 set on the elastic thin plate 1 and the upper surface material 63 are determined in a state in which 0 is penetrated through the pin hole 30 of the elastic thin plate 1. Is set. In order to maintain such a positional relationship, the upper surface material 63 and the lower surface material 65 are adjusted in position within a range corresponding to the above-described gap and are fixed to each other with screws or the like. Therefore, the upper surface material 63 and the lower surface material 65
Can be treated as an integrated jig, and even if the main frame 6 is repeatedly attached and detached, it is not necessary to perform the adjustment for positioning the dowel pin 20 with respect to the main frame 6 again.

As described above, the underlay plate 60 is fixed on the main frame 6 while being positioned by the dowel pins 66. The underlay plate 60 is fixed to the main frame 6 by a simple fastening means such as a screw. Alternatively, the fastening means may be omitted.
Therefore, as described above, when the elastic thin plate 1 is replaced with another specification, the underlay plate 60 can be easily replaced together.

Further, as shown in FIG. 8, a film positioning pin 67 may be projected upward on the upper surface of the bottom raising plate 61. Specifically, the outer size of the separate film 50 that is previously attached to the adhesive layer of the adhesive film 5 is set to be larger than that of the adhesive film 5. Separate film 50 extended to the outside of the adhesive film 5
The pin fitting holes 51 are formed on both sides of. Corresponding to this, a pin insertion hole 68 is also formed in the elastic thin plate 1. And
In the above step B, immediately before or at the same time as the operation of attaching the adhesive film 5 to the slightly adhesive layer of the slightly adhesive tape 2 attached to the surface of the elastic thin plate 1, the pin insertion holes of the separate film 50 and the elastic thin plate 1 respectively. The film positioning pin 67 is fitted into 51 and 68.

As a result, the adhesive film 5 becomes the elastic thin plate 1.
On the other hand, it is further positioned with respect to the film setting frame 3. In such a configuration, the external size of the adhesive film 5 is smaller than the opening size of the film setting punch frame 3, and the adhesive film is placed at a predetermined position inside the opening edge of the film set punch frame 3. This is useful when it is necessary to place 5 accurately.

In cases other than the above, that is, when the shape size of the sticking film 5 is substantially the same as the opening size of the film setting draft frame 3, or the sticking film 5 is on one side of the opening edge of the film setting draft frame 3. When the adhesive film 5 is adhered to the slightly adhesive layer of the slightly adhesive tape 2 in a state of being aligned with the film, the one side of the adhesive film 5 is provided along the opening edge of the film setting blank 3 to form the film. Set frame 3
The adhesive film 5 can be easily positioned with respect to.

Although not shown, the bottom raising plate 61 may be removably attached to the main frame 6 in a state where it is positioned by pins like the underlay plate 60.

Further, the film setting frame 3 may be formed at a plurality of locations on the elastic thin plate 1. In this case, the underlay plate 6 is provided corresponding to the plurality of film setting frames 3.
If the panel setting frame 8 is additionally formed on 0, the plurality of touch panel bodies 7 can be simultaneously attached to the plurality of adhesive films 5 by reciprocating the rubber roller 9 once.

Main frame 6, underlay plate 60,
It is not necessary to limit the manufacturing method, the material, etc. of the main members such as the bottom raising plate 61 and the bearing portion 40.
It is preferable to use a machined aluminum plate material to reduce the weight of the entire apparatus. in this case,
Even if the film to be laminated is glassy, it is desirable to subject the surface of the main member to a hard alumite treatment so that the main member is not damaged by coming into contact with it.

Although the embodiments of the present invention described above have been described with reference to the drawings, the present invention is not limited to the illustrated ones. Further, in this description, the description of the drawings such as top and bottom, left and right, one end, the other end, the front surface or the back surface is a relative index determined for convenience, and the orientation when using the film sticking device according to the present invention or It does not substantially limit the posture.

The technical scope of the present invention also includes embodiments in which various improvements, modifications or alterations have been made based on the knowledge of those skilled in the art without departing from the spirit of the invention. Further, within the scope of the operation or effect of the present invention, the invention specifying matters constituting the present invention may be carried out by an embodiment in which other techniques are replaced.

For example, the elastic thin plate 1 may be mainly composed of a highly elastic synthetic resin plate, or raw rubber or urethane foam may be used as the material of the rubber roller 9. Alternatively, when the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer is heat-meltable or has a good pressure-sensitive adhesive action at a predetermined temperature, the elastic thin plate 1, the rubber roller 9, the main frame 6, or a heater or the like is provided around them. It may be added.

[0056]

According to the film sticking apparatus and method of the present invention, the adherend film is made to face the adherend film in an inclined posture, and then these films are gradually pressed by the traveling rollers. As a result, the air, which remains as air bubbles between the films, can be completely discharged in the process in which the films are in close contact with each other.

Furthermore, since the re-sweepable and slightly adhesive tape is attached to the elastic thin plate and the adhesive film is attached to this adhesive tape, the adhesive film can be immediately set on the elastic thin plate. That is, it is possible to save a series of troubles such as positioning the adhesive film with respect to the elastic thin plate and then manually pressing the adhesive film. Further, the respective films can be easily positioned by fitting them into the punching frame or the mold, and further, the respective films are not displaced after the positioning.

Therefore, the operator does not pay close attention so that the adhered film does not laterally shift with respect to the adhered film. Moreover, since the roller is pressed against the superposed films by the pressing means and the roller is driven by the driving means, most of the laminating work can be automated. For this reason, it is possible to significantly reduce the time required for the work, and it is also possible to prevent the occurrence of defective products due to the operator's inexperience.

Also, in the process of running the rollers, as described above, the adhered film faces the adhered film in an inclined posture, and these are pressed by the roller running in a predetermined direction to eliminate air from both sides. Since it is configured as
The adherend film can be attached neatly to the adhesive film without leaving air bubbles. Moreover, since such a finished product can be easily and reliably achieved by mechanical operation, regardless of the familiarity of the worker or the proficiency level of the work as in the past, uniform product failures and defects occur. It can be mass-produced at low cost without causing it.

[Brief description of drawings]

FIG. 1 is a plan view showing a usage example of an elastic thin plate and a slight adhesive tape applied to a film sticking apparatus according to an embodiment of the present invention.

FIG. 2 is a side view showing an example of use of the elastic thin plate, the adhesive film and the slightly adhesive tape applied to the film attaching apparatus according to the embodiment of the present invention.

3A and 3B are a plan view and a side view showing a step of using a main part of the film sticking apparatus according to the embodiment of the present invention.

FIG. 4 is a side view showing another process of using a main part of the film sticking apparatus according to the embodiment of the present invention.

FIG. 5 is a side view showing a usage example of an elastic thin plate, a rubber sheet and a sticking film applied to the film sticking apparatus according to the embodiment of the present invention.

FIG. 6 is a side view of a main part of the film sticking apparatus according to the embodiment of the present invention.

FIG. 7 is a side view of the main frame and the underlay plate applied to the film sticking apparatus according to the embodiment of the present invention.

FIG. 8 is a plan view and a side view of a step of attaching an adhesive film having pin holes to a separate film according to an embodiment of the present invention.

[Explanation of symbols]

1: Elastic thin plate 2: Slight adhesive tape 3: Frame for film set 4: Inversion axis 5: Adhesive film 6: Mainframe 7: Touch panel body (adhesive film) 8: Formwork for panel set 9: Rubber roller 10: Film pasting device 20: Dowel pin 30: Pin insertion hole 60: Underlay plate 67: Film positioning pin

Claims (8)

[Claims] 1. An elastic thin plate having a punched frame for positioning the adhesive film, an underlay plate engraved on the upper surface to receive the elastic thin plate in an inclined posture, and the elastic thin plate. A film sticking apparatus comprising a pin for positioning the underlay plate on the underlay plate, and a roller made of an elastic material for pressing the elastic thin plate against the upper surface of the underlay plate. 2. An elastic thin plate having a punched frame for positioning the adhesive film, a bearing portion swingably bearing an inversion shaft fixed to one end of the elastic thin plate, and a formwork for positioning the adherend film. An underlay plate formed on the upper surface by engraving and arranged in the vicinity of the bearing portion to be lower than the reversing shaft, and a pin for positioning the elastic thin plate on the underlay plate,
A roller made of an elastic material that presses the elastic thin plate against the upper surface of the underlay plate, wherein the elastic thin plate has an inclined posture in which one end is supported by the reversing shaft and the other end is received on the upper surface of the underlay plate, A film sticking device that presses the elastic thin plate against the upper surface of the underlay plate while elastically deforming the elastic thin plate by running the roller from the other end of the elastic thin plate toward one end. 3. The air cylinder for pressing the roller against the upper surface of the underlay plate, and the other air cylinder for reciprocating the roller between one end and the other end of the elastic thin plate. Film sticking device. 4. The bearing part is fixed to a main frame,
The film sticking apparatus according to claim 2, wherein the underlay plate is placed on the main frame, and the underlay plate is positioned by a pin protruding from the main frame. 5. A pin insertion hole is formed on the outside of the frame of the elastic thin plate, and a bottom raising plate facing the underlay plate with the reversing shaft sandwiched is disposed in the vicinity of the bearing portion. The film sticking apparatus according to any one of claims 2 to 4, wherein a pin that is inverted around the inversion axis and is received by the bottom raising plate is inserted into the pin fitting hole by a pin protruding on an upper surface of the bottom raising plate. 6. A step of positioning an adhesive film having an adhesive layer formed on an elastic thin plate, a step of positioning an adhered film in the vicinity of the elastic thin plate, and the elastic thin plate with respect to the adhered film. A step of positioning, a step of facing the adhesive layer of the adhesive film to the adherend film in a posture in which the adhesive film is inclined upward to one side, and a roller made of an elastic material is run in a direction in which the adhesive film is inclined upward. And affixing the adhesive film together with the elastic thin plate to the adherend film with the roller, and separating the adhesive film from the slightly adhesive layer of the slightly adhesive tape. Method. 7. A step of closing the frame with the slightly adhesive tape by adhering a slightly adhesive tape having a slightly adhesive layer on the surface of the elastic thin plate having the punched frame, and the back side of the elastic thin plate. A step of attaching the other surface of the adhesive film having an adhesive layer formed on one surface to the slightly adhesive layer of the slightly adhesive tape exposed through the punching frame, and positioning the adherend film near one end of the elastic thin plate. And, by rotating the elastic thin plate around its one end, the adhesive layer of the adhesive film has an inclined posture in which the adhesive film gradually separates from the other end of the elastic thin plate toward the one end with respect to the adherend film. A step of positioning the elastic thin plate with respect to the adhered film, a roller made of an elastic material that travels from the other end of the elastic thin plate to one end, and the adhesive fill together with the elastic thin plate, Serial a step of pressing to the adherend film, process and the film pasting method comprising moving away the stuck film from the microporous adhesive layer of the weak adhesive tape. 8. An elastic thin plate having a punched frame, an underlay plate for engraving a mold for positioning an adherend film on the upper surface to receive the elastic thin plate, and a pin for positioning the elastic thin plate on the underlay plate. A touch panel manufactured by a film sticking device, comprising: a roller made of an elastic material that presses the elastic thin plate against the upper surface of the underlay plate, wherein a sticking film having an adhesive layer formed on a frame of the elastic thin plate. A step of positioning, a step of positioning the touch panel main body on the formwork of the underlay plate, a step of facing the adhesive layer of the adhesive film to the touch panel main body in a posture in which the touch panel main body is inclined upward, and from an elastic material The elastic thin plate is moved by a roller composed of Both the sticking fill, the step of pressing the touch panel body, a touch panel is manufactured through and a step of separating the bonded film from weak adhesive layer of the weak adhesive tape.