KR20140052310A - Apparatus for attaching functional film - Google Patents

Abstract

An apparatus for attaching a functional film is disclosed. The apparatus for attaching a functional film according to an embodiment of the present invention comprises: a table which forms a space in which a panel is adsorbed in vacuum to progress a panel loading/unloading process, a protective film peeling process, a panel inspection process, and a functional film attaching process for the panel, and comprises a stage in which an adsorption surface of the panel is divided into a high suction part and a low suction part; and a vacuum module for generating a vacuum pressure to the adsorption surface of the stage by being attached to the stage.

Description

[0001] Apparatus for attaching functional film [0002]

The present invention relates to a functional film adhering apparatus, and more particularly, to a functional film adhering apparatus capable of adjusting the vacuum pressure of a stage to which a film is attached, The present invention relates to a functional film attaching apparatus capable of effectively absorbing a panel according to characteristics and further expanding the use range of a panel of various sizes.

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.

At this time, before the functional film is adhered to the panel, the protective film is removed and it is inspected whether or not the foreign substance is present on the functional film adhering surface to which the functional film is to be adhered.

As a result, the series of operations for attaching the functional film to the panel means that the panel loading / unloading process in which the panel to be worked is loaded or unloaded, the protective film on the panel A panel inspecting step for inspecting the presence or absence of foreign matter on the panel surface from which the protective film has been peeled off, for example, a process for attaching a functional film such as a polarizing film to a panel, It means to proceed in turn.

In order to proceed with these processes, a stage for supporting the panel must first be provided, and the panel must be vacuum-adsorbed on the surface of the stage so that the above-described process can be easily performed.

Considering that the panel is a flexible panel and can be bent easily, that is, a curl phenomenon may occur, if the vacuum pressure of the stage is not strong, the panel may not be in surface contact with the surface of the stage, There is a concern.

Although the panel is adsorbed on the surface of the stage, it is difficult to easily carry out the protective film peeling process, the panel inspection process, and the functional film adhering process particularly when adsorbed in the excited state due to the curling phenomenon. However, if the vacuum pressure of the stage is kept excessively strong, the panel may be adsorbed while being in surface contact with the surface of the stage, but in this case, the panel loading / unloading process may be difficult due to excessive adsorption force.

Thus, there is a need for a method for efficiently controlling the vacuum pressure of the stage in accordance with the process characteristics of the panel loading / unloading process, protective film peeling process, panel inspection process, and functional film adhering process.

Korea Patent Office Application No. 10-2005-0130340

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method and a device for controlling a vacuum pressure of a stage on which a film is adhered, by which a panel can be efficiently and efficiently adjusted in accordance with characteristics of a panel loading / unloading process, a protective film peeling process, And can be used in combination with panels of various sizes, so that it is possible to expand the use range of the functional film.

According to an aspect of the present invention, there is provided a method of manufacturing a plasma display panel in which a panel is vacuum-sucked so that a panel loading / unloading process, a protective film peeling process, a panel inspection process, A table having a stage separated into a high suction part and a low suction part; And a vacuum module connected to the stage and generating a vacuum pressure on an adsorption surface of the stage.

Wherein the high vacuum part comprises: a high vacuum first part forming a majority of surfaces; And a high vacuum second part formed on an upper surface of the high vacuum first part on the adsorption surface of the stage and forming a region smaller than the area of the high vacuum first part and having a stronger vacuum pressure than the high vacuum first part can do.

The high vacuum first part may be formed by a plurality of high vacuum holes and the high vacuum second part may be formed by adding a vacuum pad or a urethane coating on a plurality of high vacuum holes.

The high vacuum first part may be divided into a plurality of groups and managed separately, and the high vacuum second part may be used in the protective film peeling process.

The low vacuum part may be partitioned into a plurality of individually actuatable ports and the area of the low vacuum part may be larger than the area of the high vacuum part.

The table may be an index table, and the stage may be a vertical stage formed on the circumferential surface of the index table and vertically adsorbed by the panel.

And a table support for supporting the index table, wherein the vacuum module can be disposed in the table support.

And a table rotation driving unit provided on the table support to rotate the index table stepwise on the table support.

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.

And a functional film attaching unit disposed so as 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 the center line of the application roller.

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; 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; 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 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 vacuum pressure of the stage on which the film is adhered can be adjusted, and the panel can be efficiently adsorbed according to the characteristics of the panel loading / unloading process, protective film peeling process, panel inspection process, and functional film adhering process, Furthermore, panels of various sizes can be used for both, which can expand the range of use.

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.
18 is an enlarged perspective view of the index table area.
19 is an enlarged view of a vertical stage.

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. FIG. 17 is a perspective view of the functional film attaching unit, FIG. 18 is an enlarged perspective view of an index table region, and FIG. 19 is an enlarged view of a vertical type stage.

Referring to these drawings, the operation of the functional film applying apparatus of this embodiment will be briefly described with reference to Figs. 1, 18, and 10. Fig.

First, in the functional film adhering apparatus of this embodiment, a table 110 is provided as a place where a protective film attached to a panel is removed (removed) and a series of processes for attaching a functional film such as a polarizing film, Wherein the table 110 at this time is applied to the index table 110.

The index table 110 is a place where all processes relating to the attachment of the functional film proceed. A panel loading / unloading process in which a panel to be processed is loaded or an unfinished panel is completed, a protective film peeling process in which a protective film on the panel is peeled, A process of attaching a functional film such as a polarizing film to a panel can be carried out through the index table 110 of the form as shown in Fig.

To this end, a plurality of four vertical stages 112 are provided on the circumference of the index table 110, and a panel loading / unloading process, a protective film peeling process, a panel inspection process, and a process of attaching a functional film are performed .

Since the above-described processes are performed in a state where the vertical stages 112 are vertically arranged and the panel is vertically adsorbed on the adsorption surface, even if the particles are floating in the air, they are not seated on the panel, There is an advantage that can be made.

When the index table 110 including four vertical stages 112 is applied, it is possible to reduce the foot print of the apparatus, reduce the occurrence of quality defects due to particles, and further reduce the tact time It is advantageous in that productivity can be improved. However, the scope of the present invention is not limited thereto, and thus the present invention is not necessarily applied to the vertical stage 112. That is, the present invention can be sufficiently applied to the horizontal stage.

In the lower region of the index table 110, a table support 113 for supporting the index table 110 is provided. The index table 110 can be supported on the table support 113.

The table support 113 is provided with a vacuum module 114 that generates vacuum pressure for vacuum formation of the vacuum holes 112a. The vacuum module 114 may be a term referring to both the vacuum tank and various lines.

The table supporting body 113 is provided with a table rotation driving unit 115 for driving the indexing table 110 to rotate stepwise on the table supporting body 113. The table rotation driving unit 115 may be applied, for example, to a rotary motor or the like.

The index table 110 is rotated by 90 degrees at a time as shown in FIG. 1 in the direction of the arrow in FIG. 1 by the table rotation driving unit 115 to pass through the first to fourth stations # 1 to # 4, By passing through the fourth station # 4, the functional film is attached on the panel. Let's start with each station (# 1 ~ # 4).

The first station # 1 represents the panel loading / unloading process position where the panel to be worked on is loaded or the panel is unloaded. When the four vertical stages 112 are disposed in the first station # 1, the panel is adsorbed on the surface of the vertical stage 112 and loaded or unloaded.

That is, the panel to be transferred, which is transferred by a separate transfer robot, is vacuum-sucked to the surface vacuum hole 112a of the vertical stage 112 located at 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. The protective film peeling process for peeling off the protective film on the panel proceeds at the position of the second station # 2.

A pre-peeling process for pre-peeling the protective film previously attached to the panel in the second station (# 2) so that the protective film peeling process can proceed more efficiently, a peeling roller The protective film attached to the peeling roller 131 is removed from the peeling roller 131 in the course of the first peeling, that is, the peeling of the protective film and the peeling of the protective film, The second peeling, that is, the protective film removing process, proceeds sequentially.

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 inspection process is performed to check whether the surface of the panel from which the protective film has been removed, that is, whether the protective film is removed and the foreign substance is present on the surface to which the functional film is to be attached.

The fourth station (# 4) indicates a position where the panel where the panel inspection process is completed 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.

As described above, in the panel loading / unloading process while passing through the above-described first to fourth stations # 1 to # 4 in a state of being vacuum-adsorbed to the vertical stage 112 of the index table 110 , A protective film peeling process, a panel inspection process, and a functional film attaching process.

At this time, as described above, since the panel applied to the present embodiment is a flexible panel that can be bent easily, that is, a curl phenomenon can occur, the vacuum pressure on the surface of the vertical stage 112 is not strong The surface of the vertical type stage 112 may not be in surface contact with the surface of the vertical type stage 112 and may be worn.

Although the panel is adsorbed on the surface of the vertical stage 112, it is difficult to easily perform the protective film peeling process, the panel inspection process, and the functional film adhering process particularly when the panel is adsorbed in the excited state due to the curling phenomenon. However, if the vacuum pressure of the vertical stage 112 is kept excessively strong, the panel may be adsorbed while being in surface contact with the surface of the vertical stage 112 in a hurry, but in this case, due to excessive adsorption force, There may be difficulties in the loading process.

Accordingly, the vacuum pressure formed on the surface of the vertical stage 112 needs to be adjusted appropriately according to the characteristics of the process or the size of the panel. To this end, the present invention is applied to a vertical stage 112, .

19, the adsorption surface of the panel, which is the surface of each vertical stage 112 formed on the circumferential surface of the index table 110, includes a high vacuum part 116 and a low vacuum part 117, low suction part.

The high vacuum part 116 is narrower in area than the low vacuum part 117 and is disposed in the upper area on the panel adsorption surface of the vertical stage 112. The high vacuum part 116 plays a role in allowing the flexible panel to be attracted without lifting. The high vacuum part 116 is connected separately to the vacuum module 114.

The high vacuum part 116 includes a first part H1 of high vacuum forming a majority of surfaces and a second part H1 of a high vacuum formed on the upper surface of the high vacuum first part H1 on the panel adsorption surface of the vertical stage 112, And a high vacuum second part H2 that forms a region smaller than the region of the high vacuum first portion H1 and forms a stronger vacuum pressure than the high vacuum first portion H1.

At this time, the high vacuum first part H1 may be formed by a plurality of high vacuum holes 116a. As shown in the drawing, the high vacuum first part H1 itself can be divided into several groups and managed individually.

On the other hand, since the second part H2 of the high vacuum needs to have a stronger vacuum than the first part H1 of the high vacuum, the second part H2 of the high vacuum can be provided with a vacuum pad 116b on the high vacuum hole have. Of course, a urethane coating may be formed instead of the vacuum pad 116b.

In the case of the vacuum pad 116b, there is an advantage that the aesthetic appearance is nice and can be individually replaced. On the other hand, in the case of the urethane coating, there is an advantage that a long service life is ensured, no error factor is caused by poor assembly, and the shape of the adsorption surface can be freely deformed by machining.

Since the second high vacuum part H2 forms the strongest vacuum pressure, it can be used in the protective film peeling process to be described later. Particularly, it can be used in the pre-peeling process in the protective film peeling process, because the upper end of the panel to be pre-peeled must be strongly adsorbed.

Unlike the high vacuum part 116 of this feature, the low vacuum part 117 has a larger area than the area of the high vacuum part 116. That is, most of the area on the panel adsorption surface of the vertical type stage 112 may be provided by the low vacuum part 117. The low vacuum part 117 is also connected separately to the vacuum module 114.

In this embodiment, the low vacuum part 117 may be partitioned into a plurality of individually driveable ports. For example, in FIG. 19, the low vacuum part 117 can be partitioned by the first port P1 on the inner side and the second port P2 on the outer side with respect to the center partition line L. The first port (P1) and the second port (P2) are separately connected to the vacuum module (114) and individually operated so that they can be applied together to panels of various sizes. For example, if the size of the panel is small, only the first port P1 will be operated, and if the size of the panel is large, the first port P1 and the second port P2 may be operated together to allow the panel to be attracted without lifting have.

By employing the vertical stage 112 having such a structure, the panel can be efficiently sucked in accordance with various process characteristics, and further, panels of various sizes can be used for both, and the use range can be expanded.

On the other hand, in the case of this embodiment, the panel loading / unloading process, protective film peeling process, panel inspection process, and functional film deposition process are performed on the surface of a plurality of vertical stages 112 formed on the outer surface of the index table 110 As the table 110 is rotated stepwise by 90 degrees, it proceeds sequentially. In this way, since all the processes can be performed simultaneously through the single index table 110 having a plurality of vertical stages 112, it is possible to reduce the foot print of the device unlike the related art, It is possible to reduce the occurrence of quality defects and further improve the productivity due to the reduction of the tact time.

In order for the first to fourth stations # 1 to # 4 to proceed, that is, the panel loading / unloading process, the protective film peeling process, the panel inspection process, and the functional film attaching process, 110 may be equipped with various devices or modules for performing the process.

Hereinafter, an apparatus or a module for performing the above processes will be described with reference to FIGS. 2 to 17. FIG. For reference, the illustration and description of the apparatus or module for the panel loading / unloading process and the panel inspection process in step 4 are omitted. The panel loading / unloading process can be performed by a separate robot, and the panel inspection process can be performed by a camera, so it is omitted.

Hereinafter, the protective film peeling unit 130, the protective film removing unit 150, and the functional film attaching unit 160 having the pre-peeling unit 120 and the peeling roller 131 will be sequentially described.

The preliminary peeling unit 120, the protective film peeling unit 130 and the protective film removing unit 150 are all provided for the efficient peeling process of the protective film as an apparatus or module disposed in the second station (# 2) region .

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.

As described above, the high vacuum second part H2 (see FIG. 19) formed on the panel adsorption surface of the vertical stage 112 during the preliminary peeling process by the preliminary peeling unit 120 adsorbs the panel with strong vacuum pressure The pre-peeling process can proceed well without fail.

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).

The functional film attaching unit 160 is provided to perform a process of attaching the functional film to the panel as an apparatus or module provided in the fourth station (# 4) region of FIG.

That is, by the structure and action of the above-described configurations, that is, the protective film peeling unit 130 having the pre-peeling unit 120, the peeling roller 131, and the protective film removing unit 150, A functional film such as a polarizing film is adhered in place. 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 transferred to a vertical stage 112 located at the first station # 1 of the index table 110, and vacuum adsorbed on the vertical stage 112, do.

When the panel is adsorbed and loaded, the index table 110 is rotated by 90 degrees by the table rotation driving unit 115. [ Thus, the panel is transferred to the second station # 2, and the new panel is transferred again to the empty vertical stage 112 located in the first station # 1 to be adsorbed and loaded.

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 inspection process is performed to check whether the surface of the panel from which the protective film has been removed, that is, whether the protective film is removed and the foreign substance is present on the surface to which the functional film is to be attached.

The panel on which the panel 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 the present embodiment having such a structure and operation, it is possible to control the vacuum pressure of the vertical type stage 112 on which the film is attached, so that the panel loading / unloading process, the protective film peeling process, the panel inspection process, The panel can be efficiently sucked according to the characteristics of the panel, and furthermore, panels of various sizes can be used for both, which makes it possible to expand the use range.

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: index table 111: table body
112: vertical type stage 113: table support
114: Vacuum module 116: High vacuum part
117: low vacuum part 120: pre-peeling 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

Claims (22)

A panel is attached to the suction surface of the panel in such a way that the panel is loaded with a high suction part so that the panel is loaded and unloaded, the protective film peeling process, the panel inspection process, A table having a stage separated into a low suction part and a low suction part; And
And a vacuum module connected to the stage and generating a vacuum pressure on an adsorption surface of the stage. The method according to claim 1,
The high-
A first high vacuum part forming a majority of the surfaces; And
And a high vacuum second part formed on an upper surface of the high vacuum first part on an adsorption surface of the stage and forming a region smaller than a region of the high vacuum first part and having a stronger vacuum pressure than the high vacuum first part, Wherein the functional film is attached to the functional film. 3. The method of claim 2,
Wherein the high vacuum first part is formed by a plurality of high vacuum holes,
Wherein the high vacuum second part is formed by adding a vacuum pad or a urethane coating on a plurality of high vacuum holes. 3. The method of claim 2,
Wherein the high vacuum first part is divided into a plurality of groups and individually managed,
Wherein the high vacuum second part is used in the protective film peeling process. The method according to claim 1,
The low vacuum part is divided into a plurality of individually actuatable ports,
Wherein the area of the low vacuum part is larger than the area of the high vacuum part. The method according to claim 1,
The table is an index table,
Wherein the stage is a vertical stage formed on a circumferential surface of the index table and vertically attracting the panel. The method according to claim 6,
Further comprising a table support for supporting the index table,
Wherein the vacuum module is disposed within the table support. 8. The method of claim 7,
Further comprising: a table rotation driving unit that is provided on the table support and rotates the index table stepwise on the table support. The method according to claim 1,
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 releasing unit for releasing the releasing film from the releasing unit. 10. The method of claim 9,
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. 12. The method of claim 11,
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. 13. The method of claim 12,
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. 12. The method of claim 11,
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. 15. The method of claim 14,
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. 16. The method of claim 15,
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,
Further comprising a functional film attaching unit disposed to be movable relative to the table and attaching the functional film to the panel. 18. The method of claim 17,
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; And
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 the center line of the attaching roller. 19. The method of claim 18,
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;
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;
A fourth stage moving unit for finely moving the film suction stage along the Z1 direction same as the second stage moving unit; And
And 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. 19. The method of claim 18,
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. 19. The method of claim 18,
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. 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