KR20190053373A - System for attaching film to panel - Google Patents

Abstract

The present invention relates to a functional film attaching device capable of coping with high-precision products. The functional film attaching system according to an embodiment of the present invention comprises: a slider moving path portion including a panel slider for moving a panel to a film attaching position for attaching a functional film to the panel, and forming a moving path of a film slider for moving the functional film to the film attaching position; and a common camera which is provided to be fixed on one side of slider moving path portion and commonly photographs an align image of the panel and the functional film for aligning the relative position of the panel with respect to the functional film.

Description

System for attaching film to panel

The present invention relates to a functional film attaching system, and more particularly, to a functional film attaching system, in which an aline image of a panel and a functional film is taken with a common camera, To a functional film attaching system capable of improving the quality of the attaching and thereby coping with high-precision products.

Recently, as the electronic display industry has rapidly developed in the semiconductor industry, flat panel displays (FPDs) have continued to develop. Flat panel displays include liquid crystal displays (LCDs), plasma display panels (PDPs), and organic light emitting diodes (OLEDs).

Among flat panel displays, OLEDs are divided into passive PMOLEDs and active AMOLEDs depending on the driving method.

AMOLED is a self-emissive display that has a faster response speed than conventional displays, has a natural color and has low power consumption. In addition, AMOLED can be applied to a flexible panel which is thin and easily bendable instead of a glass panel, and can realize the technology of a flexible display.

In manufacturing such OLEDs, various types of functional films, such as polarizing films, may be used. A functional film such as a polarizing film is attached to a target chain panel to polarize light.

Conventionally, as a technique for attaching a functional film such as a polarizing film to a target chain panel, a roll-to-stage method in which a set table is applied or a drum-to-stage method in which a drum is applied Stage method was common.

In the former roll-to-stage method, a target chain panel is disposed on a set table, and an attach roller is rotated to attach a functional film to a panel. This method is an overhang phenomenon of a film There is a problem that there is a limit in implementation of the degree of attachment due to the error caused by the error.

For reference, in the roll-to-stage type system, the functional film is not properly adsorbed on the stick roller portion, and a sagging phenomenon is likely to occur. As a result, the alignment with the panel is inevitably tripped, This phenomenon is referred to as overhang phenomenon.

On the other hand, the latter drum-to-stage method is a method in which a functional film is adhered to a panel according to a rotation operation of a drum by adsorbing a functional film on the surface of the drum. In the first functional film, There is a problem in that it may cause damage due to contact with the pad and that there is a restriction on various panel size changes due to the limitation of the vacuum area of the drum.

Thus, up to now, the roll-to-stage method and the drum-to-stage method have been mainly used as a method of attaching the functional film to the panel. However, each method has various problems as described above. Method is presented as an alternative, and various companies are currently developing the system.

In this method, a functional film such as a polarizing film is previously adhered to a pressure-sensitive adhesive sheet having a weak viscosity, a functional film is disposed on the panel, and then the pressure-sensitive adhesive sheet is pressed so that the functional film adheres to the panel. After the functional film is attached to the panel, the adhesive sheet is peeled off from the functional film.

In order to attach the functional film in this manner, an optical system is required to improve the attachment accuracy of the functional film to the panel. The optical system is equipped with a camera for taking an alignment image for aligning between the panel and the functional film.

On the other hand, for the application of the camera, it is possible to consider the application of the panel camera for photographing the alignment mark of the panel and the film camera for photographing the edge of the functional film, It may be common to apply.

However, when such an individual camera is applied, a difference in camera synchronization may occur due to a difference in recognition of each of the alignment images, and thus, it is substantially impossible to deal with a high-precision product. It is necessary to develop technology to solve this problem.

Korea Patent Office Application No. 10-2005-0063468

Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to improve the adhesion quality of a functional film by attaching a functional film to the panel based on information of the aligned image, And to provide a functional film attaching system capable of coping with a high-precision product.

According to an aspect of the present invention, there is provided a display device including a panel slider for moving a panel to a film attaching position for attaching a functional film to a panel, and a slider moving path for moving a film slider for moving the functional film to the film attaching position. part; And a common camera which is fixedly positioned at one side of the slider moving path unit and commonly photographs the alignment image of the functional film and the panel to align the relative position of the panel with respect to the functional film, The functional film attaching system according to the present invention can be provided.

The slider moving path unit may include a panel moving path line disposed on one side of the common camera and on which the panel is moved; A common moving path line connected to the film attaching position on the other side of the common camera, wherein the common moving path line in which the panel and the functional film are jointly moved; And a film movement path line connected to the common movement path line and to which the functional film is moved, wherein the common camera is fixedly positioned at a position where the panel movement path line and the common movement path line meet .

At least any one of the panel movement path line, the common movement path line, and the film movement path line may be a plurality of lines.

And a slider aligning portion connected to the panel slider and aligning the position of the panel slider in the X axis, the Y axis, and the θ axis for aligning the relative position of the panel with respect to the functional film And the slider aligning portion can align the position of the panel slider with respect to the X axis, the Y axis, and the θ axis during movement.

And a protective film peeling device provided on the slider moving path part and peeling the protective film from the surface of the panel and the functional film.

Wherein the protective film peeling apparatus comprises a multi-jointed robot having an adhesive rotating roller for peeling off a film, which is adhered to the surface of the protective film so as to peel off the protective film from the surface of the panel or the functional film; And a film rejection device disposed adjacent to the articulated robot and collecting the peeled protective film.

The articulated robot includes: a robot body supported on a mounting surface; A multi-joint arm connected to the robot body and having at least three different axes; And a robot head connected to a distal end of the multi-jointed arm, on which the adhesive rotating roller for peeling the film is mounted.

Wherein the articulated robot comprises: a film clamp which is disposed adjacent to the sticking rotary roller for peeling off the film in the robot head and clamps the protective film together with the sticking rotary roller for peeling the film; And a clamp actuator for moving the film clamp toward or away from the sticking rotary roller for peeling the film.

The end of the film clamp may be provided with a curved surface portion having the same curvature as the curved surface of the outer peripheral surface of the adhesive rotating roller for peeling the film.

The articulated robot may further include a first film sensor provided at one side of the robot head for sensing whether the protective film is clamped to the film clamp.

The articulated robot may further include an adsorption unit provided at one side of the robot head and including a plurality of adsorption pads for vacuum adsorbing the panel or the functional film.

Wherein the film rejection includes a film collection container in which the protective film peeled from the panel or the functional film is collected; And an adsorption and blowing unit provided at an entrance area of the film container for vacuuming or blowing a protective film collected in the film container by the action of the articulated robot.

A second film detecting sensor provided in the suctioning and blowing unit for detecting whether or not the protective film from the articulated robot is disposed on the suctioning and blowing unit; And a controller for controlling operations of the film clamp and the adsorption-type blowing unit based on the detection signal of the second film detection sensor.

And an adhesive force improving device disposed in a post-process of the protective film peeling device on the slider moving path part and spraying plasma ions toward the surface of the panel from which the protective film has been peeled off to improve the adhesive force to the functional film can do.

And a functional film attaching device provided at the film attaching position and attaching the functional film to the panel.

The functional film adhering device includes: a device body; A functional film attaching portion provided on the apparatus main body and attaching the functional film to the panel using the pressure sensitive adhesive sheet so that the functional film adheres to the predetermined adhesive sheet in an unfolded state; And a sheet mount portion provided on the apparatus main body and on which the adhesive sheet is mounted.

Wherein the functional film attaching portion includes: an attaching roller which is pressed on the adhesive sheet so that the functional film is adhered to the adhesive sheet or the functional film is attached to the panel; A sheet separating roller disposed adjacent to the attaching roller and disposed below the adhesive sheet at a position higher than the attaching roller so that the adhesive sheet is detached from the functional film when the attachment of the functional film to the panel is completed; And a backup roller circumscribed by the attachment roller and supporting the rotation of the attachment roller.

Wherein the functional film attaching portion includes a roller supporting module that supports the attaching roller, the backup roller, and the sheet separating roller as one body; A lower friction cylinder, and a load cell for sensing the pressing force of the application roller against the pressure sensitive adhesive sheet, wherein the module up / down driving unit for up / down driving the roller support module A driving unit; And a module driving unit connected to the roller supporting module and the module up / down driving unit, which is provided in the apparatus main body, for driving the roller supporting module to reciprocate on the panel slider.

The first and second sheet clamps may be coupled to both ends of the pressure sensitive adhesive sheet to support both ends of the pressure sensitive adhesive sheet. The sheet mounting portion may be provided on one side of the apparatus main body, A first clamp mounting support; And a second clamp mounting support which is provided on the other side of the apparatus main body and supports the second seat clamp to be mounted thereon.

The sheet tension holding unit may further include a sheet tension holding unit which is provided on at least one of the first clamp mounting support and the second clamp mounting support and maintains the tension of the adhesive sheet, A sliding rail coupled to one side of the sliding rail; A support block support having a rail block engaged with the sliding rail, the support block being coupled to the first clamp mounting support; And a tension cylinder operatively connected to the support support.

According to the present invention, it is possible to improve the adhesion quality by attaching a functional film to a panel based on information of the aligned image, after taking an alignment image of the panel and the functional film with a common camera unlike the past, It is possible to cope with high-precision products.

FIG. 1 is a structural view of a system for attaching a functional film according to an embodiment of the present invention, showing a movement path of a panel.
Fig. 2 is a view showing a movement path of the functional film in Fig. 1. Fig.
3 is a configuration diagram of the protective film peeling apparatus.
4 is an enlarged perspective view of the robot head region of the articulated robot.
Fig. 5 is a view showing Fig. 4 from another angle. Fig.
6 is an enlarged view of the main part of Fig.
FIGS. 7 to 10 are views showing a step of peeling the protective film.
11 is a perspective view of a functional film applying apparatus applied to the system of Fig.
Fig. 12 is a side view of Fig. 11. Fig.
13 is a partial sectional view taken along the line AA in Fig.
14 is a perspective view of the adhesive sheet and the first and second sheet clamps.
15 is a schematic cross-sectional view taken along the line BB in Fig.
FIGS. 16 to 19 are views showing steps of attaching a functional film to a panel.
20 is a control block diagram of a functional film attaching system according to an embodiment of the present invention.
21 and 22 are modified embodiments of the functional film attachment system, respectively.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

Prior to the description of the drawings, the functional film to be described below is a film that is at least one selected from a liquid crystal display (LCD), a plasma display panel (PDP), and an organic light emitting diode (OLED) (E.g., EMI film, prism film, protective film, diffusion film, reflective film, DBEF, PVA, TAC, OCA, release film, compensation film, An antireflection film, a polarizer film, and the like, and the panel may be a touch panel, a TSP, a window, or the like. However, the following description will be made using the terms functional film and panel without distinguishing between them.

FIG. 1 is a structural view of a system for attaching a functional film according to an embodiment of the present invention. FIG. 2 is a view showing a movement path of the functional film in FIG. 1, Fig. 5 is an enlarged perspective view of the robot head region of the articulated robot, Fig. 5 is a view showing another angle of Fig. 4, Fig. 6 is an enlarged view of the main part of Fig. 11 is a perspective view of a functional film applying apparatus applied to the system of FIG. 1, FIG. 12 is a side view of FIG. 11, and FIG. 13 is a cross- 15 is a schematic cross-sectional view taken along the line BB in Fig. 14, and Fig. 16 through Fig. 19 are cross-sectional views taken along the line AA in Fig. 14, showing the adhesive sheet and the first and second sheet clamps, The process of attaching It is shown in the drawing.

Referring to these drawings, in the functional film attaching system according to the present embodiment, an aline image of a panel and a functional film is shot with a common camera, and then a functional film is attached to the panel based on the taken image information 1 and FIG. 2, which can improve the quality of the attachment by adhering thereto, and which can cope with high-precision products. Of course, the scope of the present invention is not limited to the shapes of the drawings in that the system layouts of Figs. 1 and 2 can be changed to the layouts of Figs. 21 and 22, or other layouts within the scope of the present invention.

1 and 2, the functional film attaching system according to the present embodiment includes a slider moving path unit 500 forming a moving path of the panel slider 190 and the film slider 195, Such as the protective film peeling apparatus 200, the adhesion enhancing apparatus 300, the common camera 400, and the functional film attaching apparatus 100, which are disposed adjacent to each other on the substrate 500.

First, the slider moving path unit 500 is a kind of rail that forms a moving path of the panel slider 190 and the film slider 195.

The panel slider 190 serves to move the panel to a film attaching position for attaching the functional film to the panel, that is, a film attaching position where the functional film attaching apparatus 100 is located. The film slider 195 serves to move the functional film to the film attaching position.

The panel slider 190 and the film slider 195 may have the same configuration and may be moved through a corresponding path on the slider moving path unit 500 through a separate power unit to supply the panel and the functional film to a desired position .

As shown in FIGS. 16 to 19, the slider aligning portion 191 is coupled to the panel slider 190. The slider aligning portion 191 aligns the position of the panel slider 190 with respect to the X axis, the Y axis, and the θ axis in order to align a relative position between the panel and the functional film. That is, it serves to align the relative position of the panel with respect to the functional film on the basis of the functional film.

Although the slider aligning portion 191 is schematically shown in the drawing, the slider aligning portion 191 can be applied by a combination of a cylinder, a motor, and a ball screw, and the position of the panel slider 190 is aligned, Allow the relative position to be aligned. Of course, the film slider 195 may be provided with an alignment portion of the same type, but it is not used in the present embodiment.

The slider moving path unit 500 forming the moving path of the panel slider 190 and the film slider 195 includes a panel moving path line 510 disposed on one side of the shared camera 400 and on which the panel is moved, A common movement path line 520 which is connected to the film attachment position on the other side of the flexible film 400 and on which the panel and the functional film are jointly moved and a common movement path line 520 which is connected to the common movement path line 520, Line 530. < / RTI >

The movement trajectory of the panel on the slider moving path unit 500 will be described. The panel can be supplied to the functional film adhering apparatus 100 at step (4) while being moved in the order of (1) to (3) of FIG. At this time, the panel reaches the position 1, and the protective film adhered to the surface is peeled off, reaches the position 2, and is subjected to the plasma ion treatment. Then, the panel 3 reaches the position 3 and is marked by the common camera 400 mark is photographed. The captured alignment mark image information is transmitted to the controller 180.

Then, the functional film is finally moved to the functional film adhering apparatus 100 in the order of (1) through (4) of FIG. At this time, the functional film reaches the position (3), the protective film adhered to the surface is peeled off, the position reaches the position (4), and the edge is photographed by the common camera (400). The photographed edge image information is also transmitted to the controller 180.

Meanwhile, in the present embodiment, the functional film is first moved by the film slider 195 to be supplied to the functional film attaching apparatus 100, and thereafter, the functional film is first stuck to the adhesive sheet 110 as shown in FIG. Next, the panel is moved by the panel slider 190 and supplied to the functional film attaching apparatus 100. Thereafter, a process of attaching the functional film to the panel is performed as shown in FIGS. 18 and 19, Unloading (see Figures 1 and 2).

At this time, while the panel is moving to the functional film adhering apparatus 100, the alignment operation for the panel may proceed. In other words, since the functional film is in a state of being reached and waiting in advance in the functional film applying apparatus 100, the slider aligning section 191 moves the position of the film slider 195 to the X axis, Y axis, Axis to align the relative positions thereof, so that the panel reaches the functional film adhering apparatus 100. When the relative position of the panel is shifted during the movement of the panel to the functional film adhering apparatus 100, it is not necessary to allocate a separate time for alignment, which is a considerable help for shortening the tact time .

Next, the protective film peeling apparatus 200 is provided on the slider moving path unit 500 and serves to peel the protective film from the surface of the panel and the functional film.

In order to adhere the functional film to the panel, the protective film adhered to the surface of the panel and the functional film must be peeled off. The protective film peeling apparatus 200 plays the role of this.

The protective film peeling apparatus 200 is separately provided in the panel movement path line 510 and the common movement path line 520 in Figs. 1 and 2, and the protective film of the panel and the protective film of the functional film are peeled (Removed).

The structure and function of the protective film peeling apparatus 200 provided in the panel movement path line 510 and the common movement path line 520 are the same.

However, while the protective film of the panel on the layout of the system is peeled while the articulated robot 210 is operated on the upper surface of the panel, the protective film of the functional film peels off while the articulated robot 210 is operated on the lower surface of the functional film . However, the scope of the present invention is not limited to these matters.

As shown in detail in FIG. 3, the protective film peeling apparatus 200 is provided with an adhesive rotating roller 241 for film peeling, which is adhered to the surface of the protective film to peel the protective film from the surface of the panel or the functional film And a film rejection unit 260 disposed adjacent to the articulated robot 210 and adapted to collect the peeled protective film.

The articulated robot 210 includes a robot body 220 supported on a mounting surface, a multi-articulated arm 230 connected to the robot body 220 and having at least three axes different from each other, And a robot head 240 to which an adhesive rotary roller 241 for peeling off the film is mounted.

In this embodiment, the six-axis articulated robot 210 is applied. That is, the robot head 240 peels off the protective film from the surface of the panel or the functional film by the six-axis motion of the multi-joint arm 230, and discards the protective film to the film rejection unit 260.

When such a joint articulated robot 210 is applied, unlike the conventional art in which a plurality of uniaxial orthogonal robots are combined in an X axis, a Y axis, and a Z axis, a compact and efficient structure can be used, Control of position control, curved motion control, and the like is simple, so that the occurrence rate of the peeling error and the phenomenon of the peeling can be remarkably reduced. In addition, it becomes unnecessary or unnecessary to apply a separate additional equipment for the second peeling or collecting of the peeled protective film. For reference, in the case of the present embodiment, the six-axis articulated robot 210 is applied, but if it is more than three axes, it is sufficient.

The adhesive rollers 241 for peeling off the film are rollers provided on one side of the robot head 240, and serve to partially peel the ends of the protective film from the panel (or the functional film) as shown in FIG. 7 to FIG. Since the adhesive rollers 241 for peeling off the film are coated with a sticky material, when the adhesive rollers 241 for peeling off the film are brought into contact with the ends of the protective film and then rotated, It is possible to peel off the adhesive rollers 241 for peeling off the film.

The robot head 240 is provided with a film clamp 242 and a clamp actuator 244 for interacting with the sticking rotary roller 241 for peeling off the film.

The film clamp 242 is disposed adjacent to the sticking rotary roller 241 for peeling off the film in the robot head 240 and functions to clamp the protective film together with the sticking rotary roller 241 for peeling off the film. At the end of the film clamp 242, a curved surface portion 243 having the same curvature as that of the outer circumferential surface of the sticking rotary roller 241 for film peeling is formed. Therefore, the protective film to be peeled can be clamped without error between the adhesive rotary rollers 241 for film peeling and the curved surface portion 243 of the film clamp 242.

The clamp actuator 244 serves to move the film clamp 242 toward or away from the sticking rotary roller 241 for peeling off the film. Clamp actuator 244 may be a motor or cylinder structure.

8, the clamp actuator 244 is operated as shown in FIG. 9 so that the curved surface of the curved surface 242 of the film clamp 242, (243) is pressed against the outer surface of the sticking rotary roller (241) for peeling off the film. 10, the six-axis articulated robot 210 can be clamped between the adhesive rotating roller 241 for peeling off the film and the curved surface portion 243 of the film clamp 242, The protective film can be completely peeled off from the panel or the functional film.

The robot head 240 is provided with a first film detection sensor 245 for detecting whether or not the protective film is clamped to the film clamp 242. After the first film sensor 245 senses that the protective film is present, the articulated robot 210 is operated as shown in FIG. 10 to completely peel the protective film from the panel (or the functional film). Therefore, even if the protective film is not clamped between the adhesive rotating roller 241 for peeling off the film and the film clamp 242, it is possible to prevent the error in which the articulated robot 210 operates as shown in FIG.

In addition to such configurations, that is, configurations for clamping and peeling the protective film, the robot head 240 is further equipped with a suction unit 246. The adsorption unit 246 is provided on one side of the robot head 240 and includes a plurality of adsorption pads 247 for vacuum adsorbing the panel or the functional film. The adsorption unit 246 can take a role of adsorbing and moving a panel, a functional film, or other auxiliary materials.

Referring again to FIG. 3, the film rejection unit 260 includes a film storage box 261 in which a protective film peeled off from the panel or the functional film is collected, and an adsorption-purpose blowing unit 262 provided in the entrance area of the film storage box 261 ).

The suction and blowing unit 262 is provided in the entrance area of the film storage box 261 and performs vacuum or blowing of the protective film collected in the film storage box 261 by the action of the articulated robot 210 It plays a role.

Meanwhile, the protective film peeling apparatus 200 according to the present embodiment further includes a second film detection sensor 263 and a controller 180 (see FIG. 20). The second film detection sensor 263 is provided in the suction and blowing unit 262 and serves to detect whether or not the protective film from the articulated robot 210 is disposed on the suction and blowing unit 262. The controller 180 controls the operation of the film clamp 242 and the suction and use of the blowing unit 262 based on the detection signal of the second film detection sensor 263.

When the multi-joint robot 210 inserts the peeled protective film toward the film storage box 261, the second film detection sensor 263 detects whether or not the protective film is present and transmits the information to the controller. If a protective film is provided, the protective film can be adsorbed to the adsorption-purpose blowing unit 262 by the vacuum action of the adsorption-purpose blowing unit 262 by the controller 180. Then, the articulated robot 210 releases the clamping of the protective film by the control of the controller 180 and returns to the home position. When the articulated robot 210 is returned to the home position, the protective film can be collected while being dropped to the bottom of the film storage box 261 by the blowing action of the suction and blowing unit 262 by the controller 180 again.

The controller 180 performing such a role may include a central processing unit 181 (CPU), a memory 182 (MEMORY), and a support circuit 183 (SUPPORT CIRCUIT).

The central processing unit 181 controls the film clamp 242 and the suction and blowing unit 262 based on the detection signal of the second film detection sensor 263 in this embodiment, May be one of computer processors.

The memory 182 (MEMORY) is connected to the central processing unit 181. The memory 182 may be a computer readable recording medium and may be located locally or remotely and may be any of various types of storage devices, including, for example, random access memory (RAM), ROM, floppy disk, hard disk, May be at least one or more memories.

The support circuit 183 (SUPPORT CIRCUIT) is coupled with the central processing unit 181 to support the typical operation of the processor. The support circuit 183 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In this embodiment, the controller 180 controls the operation of the film clamp 242 and the suction and blowing unit 262 based on the detection signal of the second film detection sensor 263, 182 < / RTI > Typically, a software routine may be stored in the memory 182. The software routines may also be stored or executed by other central processing units (not shown).

Although processes according to the present invention are described as being performed by software routines, it is also possible that at least some of the processes of the present invention may be performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, or in hardware such as an integrated circuit, or in combination of software and hardware.

Next, the adhesion enhancing device 300 is disposed adjacent to the protective film peeling device 200 in FIGS. 1 and 2, and serves to eject plasma ions toward the peeling surface of the peeled panel.

In other words, the adhesive force improving device 300 is disposed on the slider moving path unit 500 in a post-process of the protective film peeling apparatus 200, and the protective film is sprayed with plasma ions toward the surface of the peeled panel, Thereby improving the adhesive strength to the substrate. The functional film can be adhered better because the plasma ion treatment is performed on the surface to which the functional film is to be attached.

1 and 2, the common camera 400 has a function of shooting an alignment image for the panel and the functional film for the purpose of aligning the relative position of the panel with respect to the functional film .

In this embodiment, the shared camera 400 is provided to be fixed on the slider moving path unit 500. That is, the shared camera 400 is fixedly disposed at the point where the panel movement path line 510 and the common movement path line 520 meet. The panel and the functional film are moved to the shared camera 400 by the operation of the panel slider 190 and the film slider 195 and then are moved to the alignment mark and the edge Is photographed.

The common camera 400 as a one camera instead of a plurality of units is fixed on the slider moving path unit 500 as shown in this embodiment and then moved to the shared camera 400 where the panel and the functional film are fixed, It is possible to cope with the precision product by allowing the in-mark and the edge to be photographed.

In addition, as described above, when the image and the alignment marks of the panel and the functional film are photographed by an individual camera and the image information is used, a deviation occurs in the camera synchronization due to the difference after recognition of each of the aligned image The application of the shared camera 400 may be suitable for the production of a high-precision product, considering that it is practically impossible to cope with high-precision products.

Finally, the functional film attaching apparatus 100 is provided at the film attaching position at the rear of the system process, and substantially carries out the function of attaching the functional film to the panel. The functional film attaching apparatus 100 may include a device body 120 and a functional film attaching portion 150 provided on the device body 120 for attaching a functional film to the panel using the adhesive sheet 110 have.

The apparatus for attaching a functional film 100 according to an embodiment of the present invention includes a sheet mount 130 for mounting the adhesive sheet 110 on the apparatus main body 120, And a panel slider 190 forming a place where the functional film is attached.

The apparatus main body 120 forms the external structure of the functional film applying apparatus 100 according to the present embodiment. In this apparatus main body 120, structures such as the adhesive sheet 110, the sheet mounting portion 130, and the functional film attaching portion 150 are mounted on a position-by-position basis.

A main body driving unit 121 is provided at one side of the apparatus main body 120. The main body driving unit 121 functions to move up and down the entire apparatus main body 120. Since the apparatus main body 120 is spaced apart from the upper portion of the panel slider 190, the main body driving unit 121 may be provided for adjusting the gap therebetween.

On the other hand, in the case of this embodiment, the functional film is attached to the panel using the adhesive sheet 110, instead of directly adhering the functional film to the panel. Therefore, the structure and function of the adhesive sheet 110 will be described in advance of the description of the functional film attaching unit 150. FIG.

The adhesive sheet 110 applied to this embodiment is a medium used for attaching the functional film to the panel. That is, in the case of this embodiment, the functional film is not directly adhered to the panel, but the functional film is first adhered to the adhesive sheet 110 as shown in Figs. 16 to 19, then the functional film and the panel are aligned with each other, 110 are pressed so that the functional film can be attached to the panel.

When the functional film is attached to the panel via the adhesive sheet 110, a roll-to-stage method using a conventional set table or a drum-to- to Stage method, it has the advantage of excellent adhesion efficiency and quality.

However, when applying the pressure sensitive adhesive sheet 110, when an engineering plastic based pressure sensitive adhesive sheet, an air padding sheet, a porous sheet, or the like is simply applied, ), The lifetime is short, the running cost is high, and the down time is increased due to frequent replacement cycles.

Thus, the present embodiment solves this problem by presenting the following adhesive sheet 110 having an innovative structure. As shown in FIGS. 14 and 15, the adhesive sheet 110 applied to the functional film applying apparatus 100 according to the present embodiment includes an adhesive layer 111, a reinforcing layer 114, and a cushion A layer 112 and an adhesive layer 113. [ The adhesive layer 111, the cushion layer 112, the adhesive layer 113, and the reinforcing layer 114 may be sequentially arranged as shown in FIG.

The adhesive layer 111 is a portion to be adhered to the functional film to be adhered to the panel through an adhesive force based on a van der Waals force.

For reference, van der Waals force refers to the force acting between electrically neutral molecules that do not have a counter-electron. Especially refers to the workforce that works at a relatively long distance. The Van der Waals force is the result of the dispersive forces, and the van der Waals force can explain the force acting between the rare gas atoms, and the factors that form molecular crystals of hydrocarbons such as benzene. The van der Waals force also means an essential force necessary for explaining phenomena such as physical adsorption and the like as well as agglomeration and adhesion of liquid and the present embodiment.

To summarize again, van der Waals force is an extremely weak electrostatic attraction that acts only in close proximity between electrically neutral molecules, and refers to electrical forces acting between covalent molecules.

Particularly, since the adhesive layer 111 is produced based on the Van der Waals force, the functional film can be easily adhered, and also the adhesive layer 111 can be peeled off have. That is, since a weak viscosity is formed in the adhesive layer 111, the adhesive layer 111 can be adhered to the functional film 111. When the functional film is adhered to the panel, the functional film is easily peeled off from the adhesive layer 111, .

However, if the adhesive layer 111 is applied to the adhesive layer 111 only as a sheet, the desired process may be performed at the initial stage. However, when the adhesive layer 111 is repeatedly used, However, if the adhesive layer 111 is stretched, it will be inevitable that the product corresponding to the high adhesion level becomes unacceptable.

To prevent the occurrence of such a phenomenon, a reinforcing layer 114 is provided on the adhesive sheet 110 applied to the functional film applying apparatus 100 according to the present embodiment. The reinforcing layer 114 is connected to the adhesive layer 111 and serves to reinforce the adhesive layer 111 so that the elongation of the adhesive layer 111 is not increased. In the present embodiment, the reinforcing layer 114 is applied as a stainless steel thin plate, and reinforces the adhesive layer 111 while supporting the adhesive layer 111 in a larger area than the adhesive layer 111 as shown in FIG. Since the reinforcing layer 114 is applied as a stainless steel thin plate, it is advantageous to match the elongation.

If the reinforcing layer 114 is further applied and applied as the adhesive sheet 110, the elongation can be reduced to almost zero, and the product can be made to have a high degree of adhesion, and the durability can be improved The lifetime can be prolonged, so that the running cost can be reduced, and the replacement period can be long, so that the down time can be remarkably reduced.

The cushion layer 112 is a layer interposed between the adhesive layer 111 and the adhesive layer 113. This cushioning layer 112 serves to provide a buffering force when the functional film is attached to the panel. Therefore, it is possible to prevent the panel from being damaged while the functional film is attached to the panel while pressing the adhesive sheet 110 with the attachment roller 151, which will be described later.

The adhesive layer 113 serves to bond the cushion layer 112 and the reinforcing layer 114 to each other. Actually, the adhesive layer 111 has a weak viscosity and can adhere well to the cushion layer 112, so that the adhesive layer 113 can be interposed only in the cushion layer 112 and the reinforcing layer 114. [ Of course, if necessary, the adhesive layer 113 may also be provided between the adhesive layer 111 and the cushion layer 112, and such matters are also within the scope of the present invention.

As described above, the adhesive sheet 110 applied to the present embodiment may include an adhesive layer 111, a reinforcing layer 114, a cushion layer 112 disposed therebetween, and an adhesive layer 113, The thickness of the adhesive layer 111 and the thickness of the reinforcing layer 114 may be equal to each other and the thickness of the adhesive layer 111 may be twice or more than the thickness of the reinforcing layer 114. [ For example, if the thickness of the adhesive layer 111 is 300 m, the thickness of the reinforcing layer 114 may be 50 m, and the sum of the thickness of the cushion layer 112 and the thickness of the reinforcing layer 114 may be 50 m . This is because the thick portion is advantageous because the portion where the functional film is actually adhered is the adhesive layer 111, and the reinforcing layer 114 can be made flexible only when it is thin. However, the scope of the present invention is not limited to these values.

As described above, the adhesive sheet 110 based on the van der Waals force described above is preferably applied to the functional film applying apparatus 100 according to the present embodiment, but this is not necessarily the case. That is, a pressure-sensitive adhesive sheet (not shown) coated with a common conventional adhesive material may be used. Therefore, the scope of the present invention is not limited to these matters.

The first and second sheet clamps 116 and 117 for supporting both ends of the adhesive sheet 110 are provided at both ends of the adhesive sheet 110 so that the adhesive sheet 110 can be mounted at the corresponding position of the apparatus main body 120 . The adhesive sheet 110 may be mounted on the sheet receiving portion 130 via the first and second sheet clamps 116 and 117. [

The sheet receiving portion 130 is provided on one side of the apparatus main body 120 and constitutes a place where the adhesive sheet 110 is mounted. The first and second sheet clamps 116 and 117 are coupled to both ends of the adhesive sheet 110. The first and second sheet clamps 116 and 117 are mounted on the sheet mount 130, 110 may be installed.

The sheet mounting portion 130 is provided on one side of the apparatus main body 120 and includes a first clamp mounting support 131 for supporting the first seat clamp 116 to be mounted thereon, And a second clamp mounting support 132 for supporting the second seat clamp 117 to be mounted thereon.

The first sheet clamp 116 supporting one end of the adhesive sheet 110 is mounted on the first clamp mounting support 131 and the second seat clamp 117 supporting the other end of the adhesive sheet 110, The adhesive sheet 110 may be mounted on the second clamp mounting support 132. The first clamp mounting support 131 and the second clamp mounting support 132 may be adhered to each other, A plurality of sheet idler rollers 134 are provided to guide the sheet 110. [

The plurality of sheet idler rollers 134 are disposed between the first clamp mounting support 131 and the second clamp mounting support 132 and serve to guide the adhesive sheet 110. In this embodiment, the plurality of sheet idler rollers 134 are rotatably disposed on the side of the first clamp mounting support 131 and the second clamp mounting support 132, respectively, and all of them are used as the non- do.

Although the adhesive sheet 110 is guided by the action of the sheet idler rollers 134, since the adhesive sheet 110 is pressed toward the panel side when the functional film is attached, if the operation repeatedly proceeds, There is a fear that the initial tension may be changed. Thus, the sheet tension holding portion 140 is provided.

The sheet tension holding portion 140 is provided on at least one of the first clamp mounting support 131 and the second clamp mounting support 132 and serves to maintain the tension of the adhesive sheet 110. [ In the case of the present embodiment, the seat tension holding portion 140 is provided on the side of the first clamp mounting support 131. However, this is only one embodiment. That is, the seat tension holding portion 140 may be provided on the side of the second clamp mounting support 132, or may be provided on both the first clamp mounting support 131 and the second clamp mounting support 132 There will be.

The seat tension holding portion 140 includes a sliding rail 141 coupled to one side of the apparatus main body 120 and a rail block 143 engaged with the rail by the sliding rail 141. The first clamp mounting support 131 and a tension cylinder 144 connected to and supported by a support table support 142. [ Thus, since the tension cylinder 144 presses or pulls the support table support 142 with a predetermined pressing force, the tension of the initially set value can be maintained as it is.

Meanwhile, the functional film attaching apparatus 100 according to the present embodiment is equipped with the functional film attaching section 150 as described above. The functional film attaching unit 150 is provided on the apparatus main body 120 adjacent to the sheet mount unit 130 so that the functional film is adhered to the adhesive sheet 110 in an unfolded state, And to attach a functional film to the panel.

In other words, the functional film attaching unit 150 first affixes the functional film to the adhesive sheet 110 as shown in Figs. 16 to 19, aligns the relative position of the panel with respect to the functional film on the basis of the functional film, The pressure sensitive adhesive sheet 110 is pressed so that the functional film can be attached to the panel. Once the functional film is attached to the panel, the adhesive sheet 110 is peeled off, i.e., released from the functional film.

The functional film attaching portion 150 that performs such a function is provided with an attaching roller 151, a backup roller 152 and a sheet separating roller 153 which are connected to one body by a roller supporting module 155, a roller supporting module A module up / down driving unit 160 for up / down driving the roll supporting unit 155 and a module driving unit 170 for driving the roller supporting module 155.

16, the adhesive roller 111 is pressed against the pressure sensitive adhesive sheet 111 such that the pressure sensitive adhesive layer 111 of the pressure sensitive adhesive sheet 110 is adhered to the pressure sensitive adhesive layer 110 as shown in FIG. It is a roller that is moved.

In other words, the attaching roller 151 presses the adhesive sheet 110 from one side to the other while rotating in the stiffening layer 114 on the adhesive sheet 110. Accordingly, the process of adhering the functional film to the adhesive layer 111 of the adhesive sheet 110 may proceed as shown in FIG. 16 and FIG. 17, and the process of attaching the functional film to the panel as shown in FIG.

The backup roller 152 is a roller circumscribing the attaching roller 151 and supporting the rotation of the attaching roller 151. The backup roller 152 may have a diameter larger than that of the attachment roller 151. The operation of the back-up roller 152 causes the attachment roller 151 to adhere to the adhesive layer 111, or a process of attaching the functional film to the panel as shown in Fig. 18 to Fig.

The sheet release roller 153 is a roller functioning to detach the adhesive sheet 110 from the functional film when the attachment of the functional film to the panel is completed as shown in FIG. The sheet release roller 153 is disposed at a lower position of the adhesive sheet 110 at a position higher than the attaching roller 151. Since the sheet release roller 153 is disposed below the adhesive sheet 110, if the sheet release roller 153 is raised, the adhesive sheet 110 can be peeled off or released from the functional film.

The above-described attachment roller 151, the backup roller 152 and the sheet separation roller 153 are supported by a roller supporting module 155 as one body. Accordingly, when the roller supporting module 155 is lifted up, the attaching roller 151, the backup roller 152 and the sheet separating roller 153 can be raised together and the roller supporting module 155 can be moved down the backup roller 152 and the sheet separation roller 153 may also be down together.

The module up / down driving unit 160 is provided in the apparatus main body 120 and serves to up / down drive the roller supporting module 155. In this embodiment, the module up / down driving part 160 includes a low friction cylinder 161. [ The low friction cylinder 161 is provided with a load cell 162 for sensing the pressing force by which the attaching roller 151 is pressed against the adhesive sheet 110. The controller 180 controls the force of the low friction cylinder 161 by the information of the load cell 162 so that the pressure sensitive adhesive sheet 110 can be pressed at a constant pressure, Or to allow the functional film to adhere to the panel.

The module driving unit 170 is provided on the apparatus main body 120 and is connected to the roller supporting module 155 and the module up / down driving unit 160. The roller supporting module 155, as shown in FIGS. 17 and 19, 190 so as to be reciprocally driven.

13, the module running part 170 includes a motor 171 for generating a driving force, a ball screw 172 rotatable in the forward and reverse directions by a motor 171, And a screw nut 173 connected to the module up / down driving part 160 at one side. When the motor 171 is driven and the ball screw 172 is rotated, the module up / down driving unit 160 and the roller supporting module 155 are driven by the action of the screw nut 173 moved on the ball screw 172, The entire panel slider 190 can be reciprocally driven. The controller 180 (see FIG. 15) described above controls the module up / down driving part 160 and the module driving part 160 based on process conditions such that the functional film is adhered to the adhesive sheet 110 or the functional film is attached to the panel. It is possible to control the operation of the controller 170.

Hereinafter, the operation of the functional film attaching system according to the present embodiment will be described.

The functional film loaded on the film slider 195 is moved in the order of (1) to (4) of FIG. 2 and finally supplied to the functional film attaching apparatus 100 of (5). At this time, the protective film of the functional film reaches the position ③, and the protective film adhered to the surface is peeled off by the protective film peeling apparatus 200, reaches the position of ④, and the edge is photographed by the common camera 400 . The photographed image information is transmitted to the controller 180.

The functional film on which the edge is photographed is supplied to the functional film adhering apparatus (5) No. 5 and then adhered to the adhesive sheet (110). We will examine this. That is, when the functional film is loaded on the panel slider 190 as shown in FIG. 16, the module supporting unit 155 is down by the module up / down driving unit 160. 17, the roller supporting module 155 is moved from one side to the other side by the action of the module driving part 170, whereby the functional film is adhered to the adhesive layer 111 of the adhesive sheet 110 through the adhesive force based on the van der Waals force Lt; / RTI > After the functional film is adhered to the adhesive sheet 110, the module up / down driving unit 160 raises the roller supporting module 155.

While the functional film is adhered to the adhesive sheet 110 as described above, the panel is finally moved to the functional film adhering apparatus 100 of (4) while moving in the order of (1) to (3) of FIG.

The panel is peeled by the protective film peeling apparatus 200 in the process of FIG. 7 to FIG. 10 by reaching the No. 1 position and the protective film adhered to the surface reaches the No. 2 position, After the ion processing, the alignment mark is photographed by the common camera 400 after reaching the position (3). The captured image information is also transmitted to the controller 180.

And then supplied to the functional film adhering apparatus 100 (4). At this time, since the functional film is already adhered to the adhesive sheet 110 of the functional film adhering apparatus 100, the aligning operation is performed on the panel to align the relative position of the panel on the basis of the functional film.

The aligning operation for the panel proceeds while the panel is moving to the functional film applying apparatus 100. In other words, since the functional film is waiting in advance in the functional film applying apparatus 100, the slider aligning section 191 positions the film slider 195 on the X axis, the Y axis, the θ Axis to align the relative positions thereof, so that the panel reaches the functional film adhering apparatus 100. As such, when the relative position of the panel is shifted while the panel is being moved, there is no need to spend extra time for alignment, which is a great help in shortening the tact time.

When the aligned panel reaches the attaching position, the module supporting / downward driving unit 160 causes the roller supporting module 155 to be down. Then, the roller supporting module 155 is further lowered by the module up / down driving part 160 as shown in FIG. 18 so that the functional film comes into contact with the panel by the action of the attaching roller 151.

19, the roller supporting module 155 is moved from one side to the other side by the action of the module driving unit 170, so that the force for pressing the adhesive sheet 110 by the attaching roller 151 causes the functional film So that it can be attached. After the functional film is attached to the panel, the roller supporting module 155 is raised again by the module up / down driving unit 160, and the adhesive sheet is released from the functional film due to the action thereof.

According to the present embodiment having the structure and function as described above, the aline image of the panel and the functional film is taken with a common camera, and then the functional film is attached to the panel based on the taken image information Thereby improving the quality of the attachment, thereby making it possible to cope with high-precision products.

21 and 22 are modified embodiments of the functional film attachment system, respectively.

In the case of FIGS. 1 and 2 described above, the structure is shown to be disposed only on one side of the protective film peeling apparatus 200 and the adhesive force improving apparatus 300, etc. on the slider moving path unit 500 of the thermal insulation, And a dual process line is formed in the case of FIG. 22, and a dual process line is arranged in pairs in the case of FIG.

21 and 22, the slider moving path portions 500a and 500b are formed in a plurality of lines while the sizes of the shared cameras 400a and 400b are increased and the protective film peeling apparatus 200, Functions, and roles are the same as those of the above-described embodiment, except that devices such as the above-described devices can be symmetrically disposed on both sides. However, when the layout as shown in Figs. 21 and 22 is used, the productivity can be greatly improved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is therefore intended that such modifications or alterations be within the scope of the claims appended hereto.

100: Functional film adhering device 110: Pressure sensitive adhesive sheet
120: main body of the apparatus 130:
140: seat tension holding part 150: functional film attaching part
160: module up / down driving part 170: module driving part
180: controller 190: panel slider
191: Slider aligning part 195: Film slider
200: protective film peeling device 210: articulated robot
220: robot body 230: multi-joint arm
240: Robot head 241: Adhesive rotary roller for film peeling
242: Film clamp 243:
244: clamp actuator 245: first film detection sensor
246: absorption unit 247: absorption pad
260: Film rejection 261: Film canister
262: Combined Blowing Unit for Adsorption 263: Second Film Sensing Sensor
300: adhesive force improving device 400: public camera
500: Slider moving path unit 510: Panel moving path line
520: common movement path line 530: film movement path line

Claims (20)

A panel slider for moving the panel to a film attaching position for attaching the functional film to the panel, and a slider moving path unit for forming a moving path of the film slider for moving the functional film to the film attaching position; And
And a common camera which is provided at one side of the slider moving path and fixedly positioned to align the panel and the functional film in order to align the relative position of the panel with respect to the functional film, Wherein the functional film attaching system comprises: The method according to claim 1,
The slider moving path unit,
A panel movement path line disposed on one side of the common camera and having the panel moved;
A common moving path line connected to the film attaching position on the other side of the common camera, wherein the common moving path line in which the panel and the functional film are jointly moved; And
A film transfer path line connected to the common transfer path line and to which the functional film is transferred,
Wherein the common camera is fixedly positioned at a position where the panel movement path line and the common movement path line meet. 3. The method of claim 2,
Wherein at least one of the panel movement path line, the common movement path line, and the film movement path line has a plurality of lines. The method according to claim 1,
Further comprising a slider alignment portion connected to the panel slider and aligning the position of the panel slider in the X axis, the Y axis, and the &thetas; axis for aligning the relative position of the panel with respect to the functional film,
Wherein the slider aligning portion aligns the position of the panel slider on the X axis, the Y axis, and the? Axis during movement. The method according to claim 1,
Further comprising a protective film peeling device provided on the slider moving path part and peeling the protective film from the surface of the panel and the functional film. 6. The method of claim 5,
The protective film peeling apparatus comprises:
A multi-jointed robot having an adhesive rotating roller for peeling off a film, which is adhered to a surface of the protective film so as to peel off the protective film from the surface of the panel or the functional film; And
And a film removing unit disposed next to the articulated robot and adapted to remove the peeled protective film. The method according to claim 6,
In the articulated robot,
A robot body supported on an installation surface;
A multi-joint arm connected to the robot body and having at least three different axes; And
And a robot head connected to the distal end of the multi-joint arm and having the adhesive rotating roller for peeling the film mounted thereon. 8. The method of claim 7,
In the articulated robot,
A film clamp disposed adjacent to the sticking rotary roller for peeling off the film in the robot head and clamping the protective film together with the sticking rotary roller for peeling the film; And
Further comprising a clamp actuator for moving the film clamp toward or away from the sticking rotary roller for peeling the film. 9. The method of claim 8,
Wherein a curved surface portion having the same curvature as the curved surface of the outer peripheral surface of the adhesive rotating roller for peeling the film is formed at the end of the film clamp. 9. The method of claim 8,
In the articulated robot,
Further comprising a first film sensor disposed at one side of the robot head for detecting whether the protective film is clamped to the film clamp. 8. The method of claim 7,
In the articulated robot,
Further comprising an adsorption unit provided on one side of the robot head and including a plurality of adsorption pads for vacuum adsorbing the panel or the functional film. 9. The method of claim 8,
The film-
A film collection container in which the protective film peeled off from the panel or the functional film is collected; And
And a suctioning and blowing unit provided at an entrance area of the film container for adsorbing or blowing a protective film collected in the film container by the action of the articulated robot. system. 13. The method of claim 12,
A second film detecting sensor provided in the suctioning and blowing unit for detecting whether or not the protective film from the articulated robot is disposed on the suctioning and blowing unit; And
Further comprising a controller for controlling operations of the film clamp and the suction and blowing unit based on a detection signal of the second film detection sensor. The method according to claim 1,
And an adhesive force improving device disposed in a post-process of the protective film peeling device on the slider moving path part and spraying plasma ions toward the surface of the panel from which the protective film has been peeled off to improve the adhesive force to the functional film Wherein the functional film is attached to the functional film. The method according to claim 1,
And a functional film attaching device provided at the film attaching position and attaching the functional film to the panel. 16. The method of claim 15,
In the functional film adhering device,
A device body;
A functional film attaching portion provided on the apparatus main body and attaching the functional film to the panel using the pressure sensitive adhesive sheet so that the functional film adheres to the predetermined adhesive sheet in an unfolded state; And
And a sheet mount portion provided on the apparatus main body and on which the adhesive sheet is mounted. 17. The method of claim 16,
Wherein the functional film attaching portion includes:
An attachment roller which is pressed on the pressure sensitive adhesive sheet to adhere the functional film to the pressure sensitive adhesive sheet or to attach the functional film to the panel;
A sheet separating roller disposed adjacent to the attaching roller and disposed below the adhesive sheet at a position higher than the attaching roller so that the adhesive sheet is detached from the functional film when the attachment of the functional film to the panel is completed; And
And a backup roller circumscribed by the attachment roller and supporting a rotation of the attachment roller. 18. The method of claim 17,
Wherein the functional film attaching portion includes:
A roller supporting module for supporting the attachment roller, the backup roller, and the sheet separation roller in one body;
A lower friction cylinder, and a load cell for sensing the pressing force of the application roller against the pressure sensitive adhesive sheet, wherein the module up / down driving unit for up / down driving the roller support module A driving unit; And
Further comprising a module driving unit provided on the apparatus main body and connected to the roller supporting module and the module up / down driving unit, for driving the roller supporting module to reciprocate on the panel slider. 17. The method of claim 16,
The first and second sheet clamps, which support both end portions of the pressure sensitive adhesive sheet, are coupled to both end portions of the pressure sensitive adhesive sheet,
The sheet-
A first clamp mounting support provided on one side of the apparatus main body and supporting the first seat clamp to be mounted; And
And a second clamp mounting support which is provided on the other side of the apparatus main body and supports the second seat clamp so as to be mounted thereon. 20. The method of claim 19,
Further comprising a sheet tension holding unit which is provided on at least one of the first clamp mounting support and the second clamp mounting support and which maintains the tension of the adhesive sheet,
Wherein the sheet tension holding portion includes:
A sliding rail coupled to one side of the apparatus body;
A support block support having a rail block engaged with the sliding rail, the support block being coupled to the first clamp mounting support; And
And a tension cylinder connected to the support support and operated.

Images