KR101419351B1 - Apparatus for attaching functional film - Google Patents

Abstract

An apparatus for attaching a functional film is disclosed. According to an embodiment of the present invention, there is provided an apparatus for attaching a functional film, comprising: a table having a stage on which a panel to which a functional film is to be attached is loaded; And a functional film attaching unit that attaches the functional film to the panel so as to be movable relative to the table, the functional film attaching unit comprising: a film adsorption stage in which the functional film is adsorbed by vacuum pressure; An attachment roller disposed adjacent to the film adsorption stage and contacting the surface of the functional film to roll the functional film on the panel and attaching the functional film to the panel; And a stage moving unit for moving the film suction stage in any direction so that the functional film can be aligned with respect to the center line of the attaching roller.

Description

[0001] Apparatus for attaching functional film [0002]

The present invention relates to an apparatus for attaching a functional film and more particularly to a method for attaching a functional film to a panel, To a functional film adhering apparatus capable of improving the degree of adhesion of a functional film.

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.

And AMOLED can be applied to a flexible panel which can be thin and easily bent instead of a glass panel, so that the technology of a flexible display can be realized.

Such OLED manufacturing processes include a pattern forming process, an organic thin film deposition process, a sealing process, a substrate on which an organic thin film is deposited and a substrate on which a sealing process is performed, a functional film attaching process for attaching a functional film to a panel And so on.

On the other hand, the process of adhering the functional film can be carried out through a so-called functional film adhering apparatus.

At this time, the panel used in the functional film attaching device may be a relatively thick glass panel made of a glass material, or a flexible panel capable of being thin and easily bendable.

In most cases, the protective film is not attached to the surface of the glass panel where the functional film is attached. Therefore, when such a glass panel is applied to a functional film attaching apparatus, a functional film such as a polarizing film can be directly attached to the glass panel without peeling the protective film.

However, in the case of the flexible panel, in order to protect the flexible panel which can be easily bent, a relatively thick protective film is often attached in advance in excess of the predetermined adhesive force.

In order to attach a functional film to a panel having a protective film such as a flexible panel, the protective film attached to the panel must first be peeled off, and then the functional film must be adhered to the panel.

The manner of attaching the functional film may vary, but a method using an attaching roller can be considered as a priority.

It is expected that the method using the attaching roller will be able to attach the functional film to the panel without exaggeration, because the attaching roller is a method of attaching the functional film while being rolled after being contacted with the entire surface area of the functional film.

On the other hand, in order to attach the functional film to the panel, the alignment operation between the panel and the functional film must be performed before the functional film is attached.

In other words, after the aligning operation between the panel and the functional film proceeds, the functional film adhering process using the adhering roller must be performed to attach the functional film to the correct place.

In this case, since the panel is vacuum-attracted to the stage of the table, the aligning operation between the panel and the functional film is generally performed while moving the functional film to the panel fixed on the stage. However, The alignment operation between the panel and the functional film was not efficiently performed.

Particularly, in the case of applying the attaching roller, it has been overlooked that it is efficient to attach the functional film after deflecting the functional film on the basis of the center line of the attaching roller.

Korea Patent Office Application No. 10-2005-0130340

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a process for attaching a functional film to a panel, And to provide a functional film adhering device which can be improved.

According to an aspect of the present invention, there is provided a table comprising: a table having a stage on which a panel to which a functional film is to be attached is loaded; And a functional film attaching unit disposed to be movable relative to the table and attaching the functional film to the panel, wherein the functional film attaching unit comprises: a film adsorption stage in which the functional film is adsorbed by vacuum pressure; An attachment roller disposed adjacent to the film adsorption stage and contacting the surface of the functional film to roll the adhesive film on the panel and attaching the functional film to the panel; And a stage moving unit for moving the film suction stage in an arbitrary direction so that the functional film can be aligned with respect to a center line of the application roller. have.

A sensing unit sensing a position of the functional film adsorbed on the film adsorption stage; And a control unit for controlling the operation of the stage moving unit for the film aligner based on the information from the sensing unit.

The sensing unit may be a camera.

The stage moving part for the film aligning part may include a first stage moving part for moving the film suction stage along the X1 direction which is the center line direction of the attaching roller; A second stage moving unit moving the film suction stage along a Z1 direction intersecting with the X1 direction; And a third stage moving unit that rotates the film adsorption stage along the T1 direction on the plane formed by the X1 coordinate and the Z1 coordinate.

The stage moving unit for film aligning may include: a fourth stage moving unit for finely moving the film suction stage along the Z1 direction same as the second stage moving unit; And a fifth stage moving unit for finely rotating the film suction stage along the direction of the same T1 as the third stage moving unit.

The stage moving unit for the film aligning unit may further include a tilting unit tilting the film suction stage by a predetermined angle with respect to the vertical axis.

The functional film attaching unit may include a roller actuator connected to the attaching roller and for moving the attaching roller to or away from the panel.

The roller actuator may be a low friction cylinder.

The functional film attaching unit may further include a parallelism measuring sensor disposed around the attaching roller and measuring a degree of parallelism of the attaching roller with respect to a surface of the panel.

A peeling knife which is disposed at one side of the table and inserted between the front end of the panel and the protective film so as to remove the adhesive force between the panel and the front end portion of the protective film to peel the front end portion of the protective film against the panel, And a pre-peeling unit having a plurality of pre-peeling units.

Wherein the pre-peeling unit comprises: an X-axis shaft for preliminary peeling, the X-axis shaft being disposed along an X-axis direction in which the peeling knife is moved on the panel; An X-axis slider for pre-peeling which is coupled to the X-axis shaft for pre-peeling and is moved along the X-axis direction; And a knife clamp module provided on the X-axis slider for pre-peeling and clamping the peeling knife.

And a peeling roller for peeling off the protective film from the panel while rolling on the outer surface of the end portion of the protective film.

The protective film peeling unit comprises: a main body for film peeling; A film peeling sub-body rotatably coupled to the peeling roller in an end region and coupled to the main body for film peeling so as to be relatively movable; And a film peeling actuator for generating power for moving the sub-body for peeling the film to the main body for film peeling.

Wherein the protective film peeling unit comprises: a roller clamp module provided on the sub-body for film peeling and rotatably clamping the peeling roller; And an auxiliary roller disposed adjacent to the peeling roller on the film-separating sub-body.

And a protective film removing unit for removing the protective film, which is wound on the peeling roller when peeling off the protective film, from the peeling roller in cooperation with the protective film peeling unit.

The protective film removing unit comprising: a film removing unit plate; A protective film receiver provided on the unit plate for removing the film and receiving the protective film from the peeling roller; And a rotatable protective film chucking module rotatably disposed in an upper region of the film removing unit plate and chucking an end region of the protective film transferred from the peeling roller toward the film removing unit plate.

The protective film removing unit further includes a protective film pusher protruding forward from a central region of the film removing unit plate and separating the protective film transferred to the protective film receiver from the protective film receiver by a pressing force can do.

The table may be an index table that is rotated stepwise.

Wherein the index table comprises: a table body; And a plurality of vertical stages vertically provided on the outer surface of the table body, respectively, for sucking the panel by vacuum pressure.

The panel may be a flexible panel for OLED (Organic Light Emitting Diodes), and the functional film may be a polarizing film attached to the panel to polarize light.

According to the present invention, the process of attaching the functional film can always proceed at a predetermined position by aligning the functional film with respect to the center line of the attaching roller and attaching the functional film to the panel, thereby improving the degree of attachment of the functional film.

1 is a schematic plan view of an index table for explaining an operation of the functional film adhering apparatus according to an embodiment of the present invention.
2 is a perspective view of the second station area of FIG.
3 is an enlarged perspective view of the pre peeling unit shown in Fig.
4 is a view showing the pre-peeling unit at different angles.
5 is a view schematically showing the operation of the pre-peeling unit.
6 is a perspective view of the protective film peeling unit shown in Fig.
7 is a schematic diagram showing a process of peeling the protective film by the protective film peeling unit.
8 is a perspective view of the roller supply unit.
9 is an arrangement structure between the roller supply unit and the protective film peeling unit.
10 is an arrangement structure between the protective film peeling unit and the protective film removing unit.
11 to 13 are diagrams showing the operation of the protective film removing unit in a stepwise manner, respectively.
14 is a schematic layout diagram between the index table and the functional film attaching unit.
15 is a view for explaining a process of attaching a functional film to a panel.
16 is a view for explaining the direction of alignment of the film adsorption stage.
17 is a perspective view of the functional film attaching unit.

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 describing the drawings, the functional film refers to a film having at least one flat panel display selected from a liquid crystal display (LCD), a plasma display panel (PDP) and an organic light emitting diode (OLED) to transmit and polarize light under optimal conditions Reflective film, DBEF, PVA, TAC, release film, compensation film, antireflection film, etc., which can be applied to various types of optical films (or sheets) Hereinafter, the polarizing film is referred to as a polarizing film attached to a flexible panel for OLED to polarize light.

FIG. 1 is a schematic plan view of an index table for explaining the operation of the apparatus for attaching a functional film according to an embodiment of the present invention, FIG. 2 is a perspective view of a second station area of FIG. 1, Fig. 5 is a view schematically showing the operation of the pre-peeling unit, and Fig. 6 is a cross-sectional view of the protective film shown in Fig. 2, FIG. 8 is a perspective view of the roller supply unit, and FIG. 9 is a perspective view showing the arrangement between the roller supply unit and the protective film peeling unit. FIG. 9 is a perspective view of the peeling unit, FIG. 10 is an arrangement structure between the protective film peeling unit and the protective film removing unit, and FIGS. 11 to 13 are views showing the operation of the protective film removing unit in a stepwise manner, 15 is a view for explaining a process in which a functional film is attached to a panel, FIG. 16 is a view for explaining the direction of alignment of a film adsorption stage, and FIG. 17 is a perspective view of the functional film attaching unit.

Referring to these drawings, the operation of the functional film adhering apparatus of this embodiment will be briefly described with reference to Fig.

The table 110 is a place where the panel to which the protective film is attached is loaded. In this embodiment, the table 110 is applied as an index table 110 that is rotated in a stepwise manner as shown in FIG. 1 as a vertical type.

The index table 110 includes a table body 111 and a plurality of vertical stages 112 vertically provided on the outer surface of the table body 111 and sucking the panels by vacuum pressure.

In this embodiment, the table body 111 of the index table 110 is formed in the same shape as a square column. Therefore, a total of four outer surfaces of the table body 111 are formed, and the vertical stages 112 are formed on all four outer surfaces.

When the index table 110 is applied and a plurality of vertical stages 112 are provided on the outer side of the index table 110, the process of attaching the functional film can be easily performed, but the foot print of the device can be significantly reduced There is an advantage to be able to.

Each of the vertical stages 112 is passed through the first to fourth stations # 1 to # 4 while being rotated by 90 degrees at a time as shown in FIG. 1, and is passed to the fourth station # 4, A film is attached. Let's look at each station (# 1 ~ # 4).

The first station # 1 represents the process position where the panel is adsorbed. When the four vertical stages 112 are arranged in the first station # 1, the panel is adsorbed on the surface of the vertical stage 112.

That is, the panel transferred by a separate transfer robot is vacuum-sucked to the surface of the vertical stage 112 located in the first station # 1. As described above, the panel is a flexible panel for an OLED, and is a panel to which a protective film is attached in advance on the surface of the functional film to which the functional film is to be attached.

The second station # 2 indicates a position where the panel attracted to the vertical stage 112 in the first station # 1 is rotated by 90 degrees.

A preliminary peeling step of preliminarily peeling off the protective film previously attached to the panel in the second station # 2, a peeling roller 131 (see FIG. 6) The second protective film removing step in which the protective film attached to the peeling roller 131 is removed by the peeling roller 131 in the course of the first peeling, that is, the protective film peeling step and the protective film peeling step, It proceeds.

The third station # 3 indicates a position where the panel in which the protective film has been completely peeled from the second station # 2 is rotated by 90 degrees.

In the third station (# 3), a panel foreign matter inspecting process for inspecting whether or not a foreign substance is present on the surface of the panel from which the protective film has been removed, that is, the surface of the functional film to which the protective film is to be attached, .

The fourth station # 4 indicates a position where the panel having been subjected to the panel foreign matter inspection process in the third station # 3 is rotated by 90 degrees.

In the fourth station (# 4), after the panel / film aligning process for advancing the relative alignment between the protective film-peeled panel and the functional film to be attached to the panel, for example, the polarizing film, A functional film adhering process in which the functional film is adhered to the panel adsorbed on the surface of the substrate 112 is performed.

Various devices and modules may be provided for the first to fourth stations # 1 to # 4 to proceed. Particularly, in the present embodiment, the pre-separation unit 120, a protective film peeling unit 130 and a protective film removing unit 150 are provided to easily peel off the protective film to which the panel is attached from the panel.

As described above, in the case of the flexible panel, since the protective film is generally attached to the panel with more than the predetermined adhesive force, the conventional method of simply peeling the protective film is to remove the protective film from the panel without damaging the panel, It is difficult to peel off.

For example, when the protective film is peeled off by chucking the front end portion of the protective film as if the vinyl is peeled off, the protective film may be folded while being peeled, and the panel may be damaged. It may not be completely peeled off.

In view of these points, in this embodiment, a method of peeling the protective film by the action of the peeling roller 131 (see Fig. 6) is applied. As will be described later, in the method using the peeling roller 131 as in the present embodiment, when the peeling roller 131 comes in contact with the end region of the protective film and rolls, that is, when the protective film is dried on the outer surface of the peeling roller 131 It is expected that there will be no peeling failure of the protective film because of the peeling method, and the protective film can be easily peeled off without damaging the panel in particular.

However, when the method using the peeling roller 131 is used, the protective film peeled off from the panel can be rewound on the peeling roller 131. The protective film peeled from the panel and rewound on the outer surface of the peeling roller 131 In order to easily remove the protective film from the peeling roller 131 without stopping the process, a protective film removing unit 150 is applied.

On the other hand, after the protective film is peeled from the panel, a functional film such as a polarizing film is adhered thereto. This attaching process of the functional film can be performed by the functional film attaching unit 160 shown in Fig.

Particularly, in the present embodiment, the functional film attaching unit 160 is configured to deflect the functional film on the basis of the center line (C / L, see Fig. 16) of the attaching roller 162, The adhesion of the functional film can be improved while the process of attaching the functional film proceeds at a certain position.

Prior to the description of the specific structure of the functional film attaching unit 160, the pre-peeling unit 120, the protective film peeling unit 130 including the peeling roller 131, and the protective film removing unit 150 First, let me explain.

The pre-peeling unit 120 pre-peels the front end portion E of the protective film against the panel (see FIG. 5). After the pre-peeling progresses, the fullness of the protective film through the peeling roller 131 As the peeling proceeds, the peeling efficiency becomes much higher. However, since the scope of the present invention is not limited thereto, the scope of the present invention may be applied to a functional film attaching apparatus to which the pre-peeling unit 120 is not applied.

2 to 5, the pre-peeling unit 120 is disposed at one side of the index table 110 to pre-peel a front end portion of a protective film against the panel, and includes a peeling knife 121, Axis X-axis shaft 122 for pre-separation, an X-axis slider 123 for preliminary separation, a knife clamp module 124, and a Y-axis moving part 125 for a peeling knife.

The peeling knife 121 is inserted between the panel and the front end portion E of the protective film so as to remove the adhesive force between the panel and the front end portion (E in Fig. 5) of the protective film and is moved in the direction of arrow X shown in Fig. And serves to pre-peel the front end portion E of the film.

As described above, in the case of the flexible panel, since the protective film is generally attached to the panel by more than a predetermined adhesive force, the protective film can be pre-peeled, that is, without peeling the front end portion E of the protective film against the panel, It is difficult to smoothly carry out the peeling process.

For reference, the protective film is generally attached to the front face of the panel, but in the case of this embodiment, a panel in which the protective film has been previously peeled by F region in FIG. 5 is used. The operation of peeling the protective film in advance by the area F in Fig. 5 to the panel is performed before the panel reaches the index table 110. Fig.

5, the protective film is peeled off by the area of F. Thus, the peeling knife 121 is inserted between the panel and the tip end portion E of the protective film using this region, and moved in the direction of arrow X in Fig. 5 , The adhesive force between the panel and the protective film in the area of the tip (E) of the protective film is removed, that is, disappears, so that it is easy to peel the protective film thereafter. Of course, the scope of the present invention is not limited thereto, and thus the panel with the protective film peeled off by the area F in FIG. 5 is not necessarily used.

The peeling knife 121 that performs this role may be made of PET (polyethylene terephthalate) material and may have a triangular or trapezoidal shape.

The X-axis shaft for preliminary peeling 122 is arranged along the X-axis direction (see FIG. 2) in the direction in which the peeling knife is moved on the panel. A shaft driving motor 122a for rotationally driving the X-axis shaft 122 for pre-peeling is connected to one side of the X-axis shaft for peeling 122.

The X-axis slider 123 for preliminary peeling is a structure that is coupled to the X-axis shaft for preliminary peeling 122 and moves along the X-axis direction. Can be moved in the + X axis direction or the -X axis direction along the X axis shaft 122 for preliminary separation in the rotation according to the forward and reverse directions of the shaft driving motor 122a.

The knife clamp module 124 is provided on the X-axis slider 123 for preliminary peeling, and functions to clamp the peeling knife 121.

The knife clamp module 124 is provided with a knife fixing clamp 124a and a knife clamping portion 124a which is in contact with or spaced from the knife fixing clamp 124a and in which a peeling knife 121 is clamped between the fixing clamp 124a and the knife fixing clamp 124a, And a knife clamp drive part 124c connected to the movable clamp 124b for knife to move the movable clamp 124b for knife toward or away from the fixed clamp 124a for knife . The peeling knife 121 is inserted at a predetermined gap between the knife fixing clamp 124a and the knife movable clamp 124b and the knife clamp driving portion 124c is driven so that the knife movable clamp 124b is fixed for the knife The peeling knife 121 can be easily installed by being fastened to the clamp 124a.

The Y-axis moving part 125 for the separation knife is connected to the knife clamp module 124 and is connected to the separation knife 121 along the Y-axis direction (see FIG. 2), which is the direction in which the panel is loaded on the vertical stage 112. [ . The Y-axis moving distance of the peeling knife 121 by the Y-axis moving part 125 for the peeling knife may be finer.

With the application of the Y-axis moving part 125 for the peeling knife having such a structure, the peeling knife 121 inserted between the panel and the front end E of the protective film is pressed toward the panel, So that the efficiency of pre-peeling can be increased.

2, 6, and 7, the protective film peeling unit 130 is disposed adjacent to the pre-peeling unit 120, and the pre-peeled protective film is peeled off due to the action of the pre- And completely peeled from the panel.

The protective film peeling unit 130 includes a peeling roller 131, a main body 132 for peeling the film, a sub-body 133 for film peeling, an actuator 134 for film peeling, a roller clamp module 135, Roller 136 as shown in FIG.

The peeling roller 131 is a roller which is in contact with the outer surface of the leading end portion (E in Fig. 5) of the pre-peeled protective film due to the action of the pre-peeling unit 120 and rolls to completely peel the protective film from the panel.

It is possible to consider a method in which the tip end portion E of the pre-peeled protective film is chucked and peeled as it is. However, when this type of method is applied, the protective film may be folded while being peeled, It may not be peeled off well.

However, when the peeling roller 131 is brought into contact with the leading edge E of the protective film that has been peeled off to peel off the protective film while rolling, that is, when the protective film is dried on the outer surface of the peeling roller 131 , There is no peeling failure of the protective film, and the protective film can easily be peeled off without damaging the panel in particular.

The film peeling main body 132 forms an outer appearance of the protective film peeling unit 130. The film peeling main body 132 is connected to the Z-axis column 137 for peeling unit by the Z-axis moving section 138 for peeling unit.

The Z-axis column 137 for the peeling unit is connected to the pre-peeling unit 120 as shown in FIG. 2, and is disposed along the Z-axis direction (see FIG. 2) in which the protective film is peeled. The Z-axis moving unit 138 for the peeling unit is connected to the protective film peeling unit 130 and the Z-axis column 137 for the peeling unit to separate the protective film peeling unit 130 from the Z- It is a kind of motor that moves along the longitudinal direction.

As shown in Fig. 7, the peeling roller 131 is rotated in contact with the outer surface of the protective film (E in Fig. 5) of the pre-peeled protective film, and the Z-axis moving part 138 for peeling unit peels off the protective film peeling unit 130 Axis direction of the Z-axis column 137 for the unit, the protective film can be easily peeled from the panel without damaging the panel.

The film separating sub-body 133 is a structure in which the separating roller 121 is rotatably engaged in the end region and is movably coupled to the film separating main body 132.

The film separating actuator 134 serves to generate power for moving the film separating sub-body 133 relative to the film separating main body 132. The film separating actuator 134 may be a cylinder or a linear motor.

The roller clamp module 135 is provided on the film separating sub-body 133 and rotatably clamps the peeling roller 131. Although not shown in detail with respect to the roller clamp module 135, the roller clamp module 135 may be applied in a manner similar to that of the knife clamp module 124.

The auxiliary roller 136 is a kind of buffer roller disposed adjacent to the peeling roller 131 on the film separating sub-body 133.

On the other hand, the peeling roller 131 must adhere to the outer surface of the protective film with a constant adhesive force to peel off the protective film. The peeling roller 131 must be replaced at regular intervals.

Considering that the replacement roller 136 as the buffer roller is provided, but the replacement cycle of the peeling roller 131 can be increased when the production amount of the panel is increased, the peeling roller 131 can be easily supplied without delay A roller feeding unit 140 is further provided in the functional film applying apparatus of this embodiment.

8 and 9, the roller supply unit 140 is disposed around the protective film peeling unit 130 and serves to supply a new roller R to the protective film peeling unit 130 .

The roller supply unit 140 includes a roller supply unit body 141 and a plurality of roller mounts 142 provided on both sides of the roller supply unit body 141 and on which the rollers R are mounted.

A body coupling portion 143 is provided at an upper portion of the roller supply unit body 141. The body joining portion 143 is a structure for connecting the roller-supplying unit body 141 and the pre-peeling unit 120, and may drive the roller-supplying unit body 141 if necessary.

The roller rollers 142 that are lined up on one side of the roller supply unit body 141 are the places where the new roller R is disposed and the opposite side is the peeling roller 131 ) May be mounted.

2 and 10 to 13, the protective film removing unit 150 cooperates with the protective film peeling unit 130 to form a protective film wound on the peeling roller 131 when peeling the protective film And is removed from the peeling roller 131.

As described above, the protective film, which is peeled from the panel by the rotation and movement of the peeling roller 131, can be rewound on the outer surface of the peeling roller 131 while being peeled from the panel. A protective film removing unit 150 is provided to remove the protective film transferred to the outer surface from the peeling roller 131.

Since the protective film removing unit 150 appropriately removes the protective film adhered to the outer surface of the peeling roller 131, the delamination roller 131 is usually replaced after several tens or hundreds of times of use, The functional film adhering process can be easily performed.

Particularly, the process of removing the protective film sticking to the outer surface of the peeling roller 131 by the operation of the protective film removing unit 150 is not a separate process, but the index table 110 is rotated by 90 degrees or the pre- Can be performed during the ongoing process, so that the tact time is not delayed and can be efficient.

The protective film removing unit 150 includes a film removing unit plate 151, a protective film receiver 152, a rotating protective film chucking module 153, and a protective film pusher 154.

The film removal unit plate 151 forms a work table on which the protective film is removed. The protective film can be chucked by the rotary protective film chucking module 153 on the film removing unit plate 151 and removed by the protective film pusher 154. [

The film removing unit plate 151 may be provided in a pair such that the protective film pushers 154 are separated from each other so as to protrude forward as shown in FIG. 13 in the state of FIG. 11 and FIG.

The protective film receiver 152 is provided on the film removing unit plate 151 and serves to receive the protective film from the peeling roller 131.

In this embodiment, the protective film receiver 152 is applied to a pair of belts 152 that are rotated in a closed loop manner in a central region of the film removal unit plate 151. [ The pair of belts 152 are continuously rotated at that position by the belt rotation driving unit 155 to receive the protective film from the peeling roller 131. That is, the peeling roller 131 is reversely rotated and moved downwardly of the film removal unit plate 151. At the same time, as the pair of belts 152 are rotated, a pair of belts 152 are separated from the peeling roller 131 A protective film can be delivered.

In this embodiment, the belt rotation drive unit 155 includes a motor 155a and a motor shaft 155b, and by these operations, the pair of belts 152 are continuously rotated.

The rotatable protective film chucking module 153 is rotatably disposed in the upper region of the film removing unit plate 151 and has an end area of the protective film transferred to the film removing unit plate 151 from the peeling roller 131 Chucking.

The rotary protective film chucking module 153 includes a rotary bar 153a and a protective film chucking member 153b coupled to an end of the rotary bar 153a to chuck the protective film. The rotary bar 153a can be rotated by the bar rotation driving unit 156 as shown in Fig. 11 to Fig. 12, and the end region of the protective film is chucked by the protective film chucking member 153b when rotated as shown in Fig.

The bar rotation drive unit 156 includes a bar shaft 156a forming a rotation axis of the rotary bar 153a, a pinion gear 156b coupled to an end of the bar shaft 156a, and a pinion gear 156b meshing with the pinion gear 156b A rack gear 156c, and a gear moving portion 156d for moving the rack gear 156c. The linear movement of the rack gear 156c is transmitted to the rotational movement of the pinion gear 156b as the gear moving portion 156d is moved and the rack gear 156c is moved, And this motion is transmitted to the rotating bar 153a through the bar shaft 156a so that the rotating bar 153a can be rotated as shown in FIG. 11 to 12 or vice versa.

The protective film pusher 154 is disposed so as to protrude forward in the central region of the film removing unit plate 151 so that the protective film transferred to the protective film receiver 152 is separated from the protective film receiver 152 by a pressing force It plays a role.

11 and 12, when the protective film is completely transferred to the protective film receiver 152 in the peeling roller 131, the protective film peeling unit 130 is moved upward to the index table 110. At this time, The protective film pusher 154 inside the plate 151 protrudes forward as shown in FIG. 13 to remove the protective film temporarily attached to the protective film receiver 152. The removed protective film is collected in the trash can at the bottom.

14 to 17, the functional film attaching apparatus of the present embodiment includes a functional film attaching unit (not shown) disposed movably relative to the index table 110 to attach a functional film to a panel having a protective film peeled off, (160).

In other words, the structure and action of the above-described configurations, that is, the protective film peeling unit 130 including the pre-peeling unit 120, the peeling roller 131, and the protective film removing unit 150, After the film is peeled and removed, a functional film such as a polarizing film is attached thereto. This attaching process of the functional film can be performed by the functional film attaching unit 160 shown in Fig.

Particularly, in the present embodiment, the functional film attaching unit 160 is configured to deflect the functional film on the basis of the center line (C / L, see Fig. 16) of the attaching roller 162, The adhesion of the functional film can be improved while the process of attaching the functional film proceeds at a certain position.

The functional film attaching unit 160 that performs this role includes a film adsorption stage 161, an attaching roller 162, and a stage moving section 170 for film aligning.

The film adsorption stage 161 is a place where the functional film is adsorbed by vacuum pressure. Therefore, a plurality of vacuum holes 161a are formed on the surface of the film adsorption stage 161. [

The attaching roller 162 is disposed adjacent to the film adsorption stage 161 and functions to attach the functional film to the panel while being pressed against the surface of the functional film to roll over the panel.

In the case of using the attaching roller 162 as in the present embodiment, since the attaching roller 162 can roll and move after contacting the entire surface area of the functional film, the functional film can be adhered to the surface of the panel, Lt; / RTI >

The stage moving part 170 for film aligning serves to move the film suction stage 161 in any direction so that the functional film can be aligned with respect to the center line C / L of the attaching roller 162 . Particularly, in the case of this embodiment, since the film moving stage 170 for film aligning moves the film suction stage 161 in the 5-axis direction shown in FIG. 16 while aligning the film suction stage 161, The degree of adhesion of the functional film can be improved.

The operation of the stage aligning unit 170 for film aligning can be controlled by a control unit (not shown). At this time, the control unit receives the information from the sensing unit (not shown) that senses the position of the functional film adsorbed on the film adsorption stage 161, and controls the operation of the stage moving unit 170 for film aligning. The sensing unit may be a camera, not shown.

16 and 17, the stage moving part 170 for film aligning moves the film adsorption stage 161 along the X1 direction in the center line (C / L) direction of the attaching roller 162 A second stage moving section 172 for moving the film attracting stage 161 along the Z1 direction intersecting the X1 direction and a second stage moving section 172 for moving the film on the plane formed by the X1 coordinate and the Z1 coordinate, A third stage moving section 173 for rotating the suction stage 161 along the T1 direction and a fourth stage moving section 173 for fine moving the film suction stage 161 along the Z1 direction the same as the second stage moving section 172 And a fifth stage moving unit 175 for finely rotating the film suction stage 161 along the same direction as the third stage moving unit 173. The first, second, and fourth stage moving units 171, 172, and 174 may be linear motors, and the third and fifth stage moving units 173 and 175 may be rotating motors.

In this way, the stage moving unit 170 for the film aligning unit having the five-axis moving structure controls the first to third stage moving units 171 to 173 under the control of the control unit to perform the aligning operation of the film suction stage 161 And the fourth and fifth stage moving parts 174 and 175 are operated so that the fine alignment operation of the film suction stage 161 is progressed secondarily, Can proceed.

Particularly, in the case of this embodiment, since the stage moving section 170 for film aligning aligns the film adsorption stage 161 on which the functional film is adsorbed based on the center line (C / L) of the attaching roller 162 The process of attaching the functional film can always proceed at a certain position, and thus the degree of attachment of the functional film can be improved.

The tilting portion 176 is further provided in the stage moving portion 170 for the film aligning of the present embodiment. The tilting portion 176 tilts the film adsorption stage 161 arranged in the vertical direction as shown in FIG. 17 by a predetermined angle with respect to the vertical axis, that is, tilting the film adsorption stage 161 as shown in FIG. 15 . After the film attracting stage 161 is tilted as shown in Fig. 15 and the attaching roller 162 presses the functional film toward the panel side P1, the attaching roller 162 is moved in the P2 direction while being rotated, The process can be carried out.

A roller actuator 164 is provided so that the attachment roller 162 in the direction of P1 in Figure 15 can be moved closer to the panel or vice versa. In this embodiment, the roller actuator 164 is applied as a low friction cylinder. Therefore, the phenomenon that the attaching roller 162 is pressed against the panel with excessive pressure can be suitably prevented.

A pair of parallelism measuring sensors 165 are provided around the attaching roller 162. The parallelism measuring sensors 165 are disposed around the attaching roller 162 to measure the degree of parallelism of the attaching roller 162 to the surface of the panel.

Hereinafter, the function of the functional film adhering apparatus will be described.

First, a panel having a protective film on one side is conveyed to a vertical stage 112 positioned at the first station # 1 of the index table 110 and vacuum-adsorbed on the vertical stage 112.

When the panel is adsorbed, the index table 110 is rotated by 90 degrees. Thus, the panel is transferred to the second station # 2, and a new panel is transferred and adsorbed to the empty vertical stage 112 located in the first station # 1.

On the other hand, when the panel adsorbed on the vertical stage 112 is transferred to the second station # 2, the preliminary peeling of the protective film previously attached to the panel in the second station # The protective film peeled off from the panel using the peeling roller 131, that is, the protective film peeling process, and the protection against the peeling roller 131 in the course of the protective film peeling process The second peeling process for removing the film from the peeling roller 131, that is, the process for removing the protective film, proceeds sequentially.

In this regard, the pre-peeling unit 120 first carries out the pre-peeling process. That is, after the peeling knife 121 of the pre-peeling unit 120 is inserted between the panel and the front end E of the protective film through the area where the protective film is peeled by the area F in Fig. 5, The adhesive force between the panel and the protective film is removed or eliminated in the region of the front edge (E) of the protective film, thereby allowing the pre-peeling process to proceed.

After the pre-peeling process, the protective film peeling unit 130 advances the protective film peeling process. At this time, the peeling roller 131 is rotated in contact with the outer surface of the protective film (E in Fig. 5) of the pre-peeled protective film as shown in Fig. 7 and the Z axis moving part 138 for the peeling unit moves the protective film peeling unit 130 By moving along the Z-axis direction of the Z-axis column 137 for the peeling unit, the protective film can be peeled from the panel. The protective film peeled from the panel during the protective film peeling step is attached to the peeling roller 131.

After the protective film peeling process, the protective film removing unit 150 performs the protective film removing process. As the pair of belts 152 are rotated, the pair of belts 152 are separated from each other by the peeling roller (not shown) 131). ≪ / RTI > The protective film peeling unit 130 is moved upward to the index table 110 after the protective film is completely transferred from the peeling roller 131 to the protective film receiver 152. At this time, The protector film pusher 154 inside the protector 151 protrudes forward as shown in FIG. 13 to remove the protective film temporarily attached to the protector film receiver 152. The removed protective film is collected in the trash can at the bottom.

On the other hand, after the pre-peeling process, the protective film peeling process, and the protective film removing process are performed on the second station # 2, the index table 110 is rotated by 90 degrees again. Therefore, the panel with the protective film peeled is transferred to the third station # 3.

In the third station (# 3), a panel foreign matter inspecting process for inspecting whether or not a foreign substance is present on the surface of the panel from which the protective film has been removed, that is, the surface of the functional film to which the protective film is to be attached, .

The panel on which the panel foreign object inspection process is performed in the third station # 3 is moved to the fourth station # 4 as the index table 110 is rotated by 90 degrees again.

In the fourth station (# 4), after the relative alignment between the panel on which the protective film is peeled and the functional film to be attached to the panel, for example, the polarizing film, is proceeded, the functional film adhering process .

First, the sensing unit applied to the camera confirms the position of the functional film and sends the information to the control unit.

Then, the control unit controls the operation of the stage moving unit 170 for aligning the film based on the correction value, thereby advancing the aligning operation of the film suction stage 161. That is, the first to third stage moving parts 171 to 173 are operated first to advance the aligning operation of the film suction stage 161 first, and then the fourth and fifth stage moving parts 174 and 175 are operated, The aligning operation of the film adsorption stage 161 is completed by advancing the fine alignment work of the adsorption stage 161 to the second stage.

When the aligning operation of the film adsorption stage 161 is completed, the film adsorption stage 161 is tilted as shown in FIG. 15, and after the application roller 162 presses the functional film toward the panel side P1, Is moved in the P2 direction while being rotated, so that the process of attaching the functional film can be performed. The attached panel, which is a functional film, is conveyed to a post-process.

According to this embodiment having such a structure and operation, the functional film is aligned on the basis of the center line (C / L) of the attachment roller 162 and then attached to the panel, so that the process of attaching the functional film always proceeds at a predetermined position So that the degree of adhesion of the functional film can be 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. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

110: Table 111: Table body
112: Vertical type stage 120: Pre-separation unit
121: peeling knife 122: X-axis shaft for preliminary peeling
123: X-axis slider for pre-peeling 124: Knife clamp module
124a: Fixing clamp for knife 124b: Movable clamp for knife
124c: Clamp driving part for knife 125: Y-axis moving part for peeling knife
130: protective film peeling unit 131: peeling roller
132: Main body for film peeling 133: Sub-body for film peeling
134: Film peeling actuator 135: Roller clamp module
136: Auxiliary roller 137: Z-axis column for peeling unit
138: Z-axis moving part for peeling unit 140: roller feed unit
141: unit for roller supply body 142: roller holder
143: Body coupling part 150: Protective film removing unit
151: Film removing unit plate 152: Protective film receiver
153: Rotary protective film chucking module 153a: rotating bar
153b: protective film chucking member 154: protective film pusher
155: Belt rotation driving part 156: Bar rotation driving part
160: Functional film attaching unit 161: Film adsorption stage
162: attaching roller 164: roller actuator
165: parallelism measuring sensor 170: stage moving part for film aligning
171 to 175: First to fifth stage moving parts

Claims (20)

A table having a stage on which the panel to which the functional film is to be attached is loaded; And
And a functional film attaching unit disposed to be movable relative to the table and attaching the functional film to the panel,
The functional film attaching unit includes:
A film adsorption stage in which the functional film is adsorbed by vacuum pressure;
An attachment roller disposed adjacent to the film adsorption stage and contacting the surface of the functional film to roll the adhesive film on the panel and attaching the functional film to the panel;
A stage moving unit for moving the film suction stage in an arbitrary direction so that the functional film can be aligned with respect to a center line of the application roller; And
And a parallelism measuring sensor disposed around the attaching roller for measuring a degree of parallelism of the attaching roller to a surface of the panel. The method according to claim 1,
A sensing unit sensing a position of the functional film adsorbed on the film adsorption stage; And
And a control unit for controlling the operation of the stage moving unit for film aligning based on the information from the sensing unit. 3. The method of claim 2,
Wherein the sensing unit is a camera. The method according to claim 1,
Wherein the stage moving unit for the film aligner includes:
A first stage moving part moving the film suction stage along a direction X1 which is the center line direction of the attaching roller;
A second stage moving unit moving the film suction stage along a Z1 direction intersecting with the X1 direction; And
And a third stage moving unit for rotating the film adsorption stage along a direction T1 in a plane formed by the X1 coordinate and the Z1 coordinate. 5. The method of claim 4,
Wherein the stage moving unit for the film aligner includes:
A fourth stage moving unit for finely moving the film suction stage along the Z1 direction same as the second stage moving unit; And
Further comprising a fifth stage moving unit for fine-rotating the film suction stage along the direction of the same T1 as the third stage moving unit. The method according to claim 1,
Wherein the stage moving unit for the film aligner includes:
Further comprising a tilting portion for tilting the film suction stage by a predetermined angle with respect to a vertical axis line. The method according to claim 1,
The functional film attaching unit includes:
And a roller actuator connected to the attaching roller for moving the attaching roller toward or away from the panel. delete delete The method according to claim 1,
The front end of the protective film is inserted between the panel and the front end of the protective film so as to eliminate the adhesive force between the panel and the front end of the protective film protecting the panel, And a peeling knife for peeling the peeling knife from the peeling knife. 11. The method of claim 10,
The pre-
An X-axis shaft for preliminary separation disposed along the X-axis direction in which the separation knife is moved on the panel;
An X-axis slider for pre-peeling which is coupled to the X-axis shaft for pre-peeling and is moved along the X-axis direction; And
And a knife clamp module provided on the X-axis slider for pre-peeling and clamping the peeling knife. The method according to claim 1,
And a peeling roller for peeling off the protective film from the panel while rolling on the outer surface of the end portion of the protective film for protecting the panel. 13. The method of claim 12,
Wherein the protective film peeling unit comprises:
Main body for film peeling;
A film peeling sub-body rotatably coupled to the peeling roller in an end region and coupled to the main body for film peeling so as to be relatively movable; And
And a film peeling actuator for generating a power for moving the sub-body for peeling off the film to the main body for film peeling. 14. The method of claim 13,
Wherein the protective film peeling unit comprises:
A roller clamp module provided on the sub-body for peeling the film and rotatably clamping the peeling roller; And
Further comprising an auxiliary roller disposed adjacent to the peeling roller on the film separating sub-body. 13. The method of claim 12,
Further comprising a protective film removing unit for removing the protective film, which is wound on the peeling roller, from the peeling roller in cooperation with the protective film peeling unit and peeling off the protective film. 16. The method of claim 15,
Wherein the protective film removing unit comprises:
A unit plate for film removal;
A protective film receiver provided on the unit plate for removing the film and receiving the protective film from the peeling roller; And
And a rotary protective film chucking module rotatably disposed in an upper region of the film removing unit plate and chucking an end region of the protective film transferred from the peeling roller toward the film removing unit plate. Functional film attachment device. 17. The method of claim 16,
Wherein the protective film removing unit comprises:
Further comprising a protective film pusher disposed to protrude forward from a central region of the film removing unit plate and separating the protective film transferred to the protective film receiver from the protective film receiver by a pressing force. Attaching device. The method according to claim 1,
Wherein the table is an index table rotated step by step. 19. The method of claim 18,
Wherein the index table comprises:
Table body; And
And a plurality of vertical stages vertically provided on the outer surface of the table body for sucking the panel by vacuum pressure. The method according to claim 1,
The panel is a flexible panel for OLED (Organic Light Emitting Diodes)
Wherein the functional film is a polarizing film attached to the panel to polarize light.

Images