TWI597170B - Film attaching system and film attaching method - Google Patents

Description

Film system and film method

The present invention relates to a film coating system and a film coating method.

The present invention relates to a system and method for attaching a polarizing film to both sides of a panel, and attaching a polarizing film to the top and bottom of the panel such that the top and bottom of the panel are in the manufacture of a display panel such as a liquid crystal display module. The process has optical anisotropy.

Conventional polarizing film attachment solutions include a solution for attaching a sheet to a panel and a solution for attaching the web to the panel.

In the attachment scheme of attaching the sheet to the panel, a polarizing film cut according to the size of the panel is provided and attached; in the attachment scheme of attaching the web to the panel, the fabric is provided as a fabric A roll of film is attached to the panel.

A method for attaching a polarizing film to a panel using a scheme of attaching a web to a panel and a panel flipping scheme is disclosed in Korean Patent Registration No. 10-0975501.

In the above-described prior art, two film rolls having the same direction are used for optical anisotropy. The polarizing film was attached to one side of the panel to have orthogonal optical anisotropy from each other, and after the panel was turned to 90°, the polarizing film was attached to the other side of the panel. Further, the panel and the polarizing film pass through a pair of rollers to attach the polarizing film to the panel, and the pressure applied by the polarizing film through the roller is attached to the panel.

The conventional film attaching scheme as described above has the following disadvantages.

First, the front end of the film is not properly positioned relative to the panel, and thus the film is not properly aligned relative to the panel.

Secondly, the film is attached to the panel when the release film is removed and the film is attached to the structure of the panel by applying pressure to the roller, which reduces the accuracy of the film attachment and causes during the attachment process. Air bubbles between the film and the panel.

Third, after attaching the film to one side of the panel, there is a process of flipping the top and bottom of the panel, so that the film feeding device and the cutting device are necessary for attaching the film to the other side of the panel. These devices should be presented at the top of the panel. Therefore, it is difficult to construct a filming system.

It is an object of the invention to improve the above problems.

According to an aspect of the present invention, a film coating system provided by the present invention includes: a first polarizing film attaching system for attaching a first polarizing film to a first side of a panel; and a second polarizing light a film attaching system for attaching a second polarizing film to the second side of the panel, wherein the first polarizing film attaching system comprises: a panel feeding portion for feeding the panel to a first a polarizing film attaching region and a film supply portion for providing a first polarizing film unit, the first polarizing film unit comprising the first polarizing film, a protective film attached to one of the first polarizing films, And a release film attached to the other side of the first polarizing film; a film feeding portion for feeding the first polarizing film; and a cutter for completely omitting the first polarizing film fed by the film feeding portion Cutting a first adsorption cartridge for transmitting a state in which a first polarizing film unit having a sheet shape is adsorbed on the first adsorption tube by completely cutting the cutter on the outer peripheral surface thereof Guiding the first polarizing film unit into the first a polarizing film attaching region; and a release film removing portion for separating a release film of the first polarizing film adsorbed on the first adsorption tube, wherein the first polarizing film is completely cut by the cutter The unit is rotated to a predetermined angle with respect to a vertical axis before reaching the first polarizing film attachment region, and wherein the first adsorption cartridge rotates and the panel moves, the surface contacting the surface of the first adsorption cartridge The first polarizing film is attached to the first side of the panel in the first polarizing film attachment region.

According to an embodiment of the present invention, the filming system and the filming method having the above configuration have the following effects.

First, the state in which the polarizing film that removes the release film is adsorbed to the adsorption tube Next, the panel is passed between the adsorption tube and the applicator roller to attach the film, thereby improving the alignment accuracy between the film and the panel, and no bubble is caused between the film and the panel.

Second, since the top and bottom of the panel are flipped after attaching the film to one side of the panel and attaching the film to the other side of the panel, the device for attaching the film to one side and the other side of the panel can be set At the bottom of the panel, this makes the construction of the foil system easier.

10‧‧‧ panel

101‧‧‧ first side

102‧‧‧ second side

11‧‧‧ polarizing film / upper polarizing film

12‧‧‧ polarizing film / lower polarizing film

13‧‧‧Protective film

14‧‧‧ release film

20‧‧‧Upper polarizing film unit

21‧‧‧ Film roll/upper polarizer

210‧‧‧ Film roll

22‧‧‧ Film Feeding Department

220‧‧‧film feeding department

23‧‧‧cut bed

24‧‧‧ Defect monitoring device

240‧‧‧ Defect monitoring device

25‧‧‧Tools

250‧‧‧Tools

26‧‧‧film rotating device

27‧‧‧Adsorption bed

28‧‧‧Adsorption cartridge

280‧‧‧Adsorption cartridge

29‧‧‧ Release Film Removal Department

291‧‧·Unwinding roller

292‧‧‧Adhesive tape

293‧‧‧Release roller

294‧‧‧ winding roller

30‧‧‧ Panel Feeding Department

31‧‧‧ Panel supply unit

310‧‧‧ Panel supply unit

32‧‧‧Inlet Feeding Department

33‧‧‧Export Feeding Department

34‧‧‧Inlet Feeding Department

35‧‧‧Export Feeding Department

36‧‧‧ Attachment roller

360‧‧‧ Attachment roller

393‧‧‧Release roller

394‧‧‧ Release film recovery roller

40‧‧‧low polarizing film unit

50‧‧‧Flipping device

S10~S40‧‧‧Steps

S21~S25‧‧‧Steps

S41~S44‧‧‧Steps

1 is a cross-sectional view of a polarizing film unit used in a filming system according to an exemplary embodiment of the present invention; 2 is a cross-sectional view of a panel through which a polarizing film is attached according to a film sticking system according to an exemplary embodiment of the present invention; and FIG. 3 is a flow chart schematically illustrating a film sticking method applied in a film sticking system according to an exemplary embodiment of the present invention; Fig. 4 is a flow chart showing the attaching process of the upper polarizing film performed in the filming system according to an exemplary embodiment of the present invention; Fig. 5 is a process chart to which the polarizing film is attached; Fig. 6 and Fig. 7 1 is a process diagram showing a method of rotating a film according to another embodiment of the present invention; and FIG. 8 is a flow chart showing a process of attaching a lower polarizing film performed in a filming system according to an exemplary embodiment of the present invention; Figure 9 is a process diagram of attaching a polarizing film.

Hereinafter, a filming system and a filming method according to an exemplary embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a cross-sectional view of a polarizing film unit applied in a filming system according to an exemplary embodiment of the present invention, and FIG. 2 is an exemplary embodiment according to the present invention A cross-sectional view of a panel to which a polarizing film is attached through a filming system.

Referring to FIGS. 1 and 2, a polarizing film unit according to an exemplary embodiment of the present invention includes an upper polarizing film unit 20 and a lower polarizing film unit 40, which are optical films having optical anisotropy. The upper polarizing film unit 20 and the lower polarizing film unit 40 are defined as a first polarizing film unit and a second polarizing film unit, respectively.

In more detail, the upper polarizing film unit 20 and the lower polarizing film unit 40 are of a roll type, and the two film units are formed with an adsorption axis in the longitudinal direction of the film. That is, the upper polarizing film unit 20 and the lower polarizing film unit 40 have the same optical anisotropy. Further, the upper polarizing film unit 20 is attached to the top of the panel 10, and the lower polarizing film unit 40 is attached to the bottom of the panel 10.

Further, for the polarization effect, the adsorption axes of the upper polarizing film unit 20 and the lower polarizing film unit 40 are respectively connected to the top and bottom of the panel 10 in a state of crossing each other.

For this purpose, the panel 10 has a rectangular shape, the width of the upper polarizing film unit 20 is formed to correspond to the length of the shorter side of the panel 10, and the length is cut to have a length corresponding to the longer side of the panel 10. . In contrast, the width of the lower polarizing film unit 40 is formed to correspond to the length of the longer side of the panel 10, and the length is cut to have a length corresponding to the shorter side of the panel 10. Further, any one of the upper polarizing film unit 20 and the lower polarizing film unit 40 is rotated by about 90°, and the rotated upper and lower polarizing film units 20, 40 are attached to the panel 10. Hereinafter, for example, it is described that the upper polarizing film unit 20 is rotated and then attached to the panel 10. However, the rotation of the lower polarizing film unit 40 and the process of attaching it to the panel 10 are also included in one concept of the present invention.

The polarizing film units 20, 40 have polarizing films 11, 12; a protective film 13 attached to the top of the polarizing films 11, 12; and a release film 14 attached to the bottoms of the polarizing films 11, 12. The release film 14 is just removed before the polarizing films 11, 12 are attached to the panel 10, thus causing the surface of the polarizing films 11, 12 in contact with the release film 14 to be attached to the top or bottom of the panel 10. Further, after the polarizing films 11, 12 are attached to the panel 10, the protective film 13 is removed at a specific step. The polarizing films 11, 12 include an upper polarizing film 11 and a lower polarizing film 12. The upper polarizing film 11 and the lower polarizing film 12 may be defined as a first polarizing film and a second polarizing film.

As shown in FIG. 2, the upper polarizing film 11 is attached to the top of the panel 10, and the lower polarizing film 12 is attached to the bottom of the panel 10. In addition, the protective film 13 attached to the polarizing films 11, 12 is removed.

The panel may include a display panel (a glass panel sealed with a cell) that provides an LCD display device.

Hereinafter, the process of attaching each of the polarizing films 11, 12 to the panel 10 will be explained in more detail with reference to the accompanying drawings.

Fig. 3 is a flow chart schematically illustrating a film sticking method applied in a filming system according to an exemplary embodiment of the present invention.

Referring to Fig. 3, in order to attach the polarizing film, the panel 10 is fed to the film attaching area (S10). In the past, the polarizing film units 20, 40 from which the release film was removed were fed to the film attaching region.

In this state, the polarizing film 11 is attached to the bottom of the panel 10 (S20), and the panel 10 is rotated by 180 with respect to a horizontal axis to invert its top and bottom (S30).

Further, in a state where the top and bottom of the panel 10 are reversed, the polarizing film 12 is attached to the bottom of the panel 10 (S40), thereby completing the process of attaching the film.

Hereinafter, one surface of the panel 10 to which the polarizing film 11 is attached is defined as a first surface, and a surface to which the panel 10 is attached to the lower polarizing film 12 is defined as a second surface.

4 is a flow chart showing a process of attaching an upper polarizing film in a filming system according to an exemplary embodiment of the present invention, and FIG. 5 is a process chart to which a polarizing film is attached.

Referring to Fig. 4, the upper polarizing film unit 20 is provided in a winding type to attach the upper polarizing film 11 to the panel 10 (S21), and the provided upper polarizing film unit 20 is completely cut in the size of the panel 10. Cut (S22). Here, the complete cutting refers to the protective film 13, the upper polarizing film 11, and the release film 14 which completely cut the upper polarizing film unit 20. Therefore, the upper polarizing film unit 20 provided in the winding type is cut into a film sheet type in the size of the panel 10.

On the other hand, the upper polarizing film unit 20 having the dicing type is rotated to 90 by a rotating means (which will be described later) (S23).

Further, the release film 14 of the rotated upper polarizing film unit 20 is separated (S24), and at the same time, the protective film 13 and the upper polarizing film 11 are adsorbed onto the adsorption tube (which will be described below).

Further, the upper polarizing film 11 is attached to the first face of the panel 10 (S25).

Referring to Fig. 5, a more detailed description will be made below regarding a system for attaching the above polarizing film in the present invention. The upper polarizing film unit 20 provided in a state of being wound into the film roll 21 is unfolded, and is fed through the film feeding portion 22 to the film cutting region. Therefore, the upper polarizing film unit 20 wound into the film roll 21 can be defined as a film supply portion.

The film feeding portion 22 feeds the film to the film cutting region while tensioning the tension of the film, and the film feeding portion 22 may include various configurations such as a plurality of rollers and a tension balancer. The configuration of the film feeding portion 22 is the same as that in the above-described conventional technique, and therefore description thereof will be omitted.

In more detail, the width of the upper polarizing film unit 20 may be a width corresponding to the length of the shorter side of the panel 10. The inferiority of the upper polarizing film unit 20 fed through the film feeding portion 22 is determined as it passes through the defect monitoring device 24. Further, the upper polarizing film unit 20 passing through the defect detecting device 24 is guided into the cutting bed 23 and completely cut by the cutter 25. Among them, the cutter 25 cuts the upper polarizing film unit 20 at intervals corresponding to the length of the longer side of the panel 10.

Further, when the defect monitoring device 24 finds the defective portion, the dots separated by the fixed interval are cut back and forth based on the defective portion, thereby removing the defective sheet portion. In order to remove the defective portion, the cutting interval of the upper polarizing film 20 cut by the cutter 25 may be set to be larger or smaller than the length of the longer side of the panel 10 according to the size of the defective portion.

On the other hand, the upper polarizing film unit 20 cut by the cutter 25 is rotated by the film rotating device 26 with respect to a vertical axis to 90°, and is guided into the adsorption bed 27. That is, the shorter side of the upper polarizing film unit 20 is rotated to allow its longer side to be directed through the film rotating device 26 in the state facing the feeding direction toward the feeding direction.

Further, the upper polarizing film unit 20, which is rotated to 90° and is in a state of being adsorbed onto the film rotating device 26, is fed to the adsorption bed 27 through the film rotating device 26, and is permeated in a state of lying on the adsorption bed 27. Film turning device 26 The release adsorption force is separated from the film rotating device 26. Further, the longer side of the upper polarizing film unit 20 is fed to the adsorption cylinder 28 through the adsorption bed 27 in a state of facing the feeding direction. The adsorbent bed 27 can include a conveyor belt.

The adsorption cylinder 28 is formed with a vacuum suction hole (not shown) for vacuum adsorption on its outer peripheral surface, or an adhesive sheet having a certain degree of adhesion fixed to the outer peripheral surface of the adsorption cylinder 28. The adsorption cylinder 28 contacts the front end of the upper polarizing film unit 20. Then, the adsorption cylinder 28 is rotated in the counterclockwise direction in the drawing, and the upper polarizing film unit 20 is transported into the outer peripheral surface of the adsorption cylinder 28 in an adsorbed or adhered manner.

Hereinafter, although the adsorption cartridge 28 is vacuum-adsorbed, it operates in the same manner as in the adhesive sheeting scheme.

When the adsorption cartridge 28 is mounted as an adhesive sheet, it is necessary to control the adhesion of the adhesive sheet. That is, when the upper polarizing film unit 20 is attached to the panel 10, the adhesive sheet should have sufficient adhesive force to separate the protective film 13 from the adhesive sheet.

The adsorption cylinder 28 rotates the upper polarizing film unit 20 in the adsorption state and places it at the bottom of the panel 10. Further, the adsorption tube 28 attaches the upper polarizing film 11 to the panel 10 by releasing the adhesion force during the rotation.

In more detail, the top of the upper polarizing film unit 20 fed by the adsorption bed 27, that is, the protective film 13 is pulled to the outer peripheral surface of the adsorption cylinder 28. Further, the adsorption cylinder 28 adsorbs the protective film 13 which is gradually tightened. Therefore, the front end to the rear end of the upper polarizing film unit 20 are gradually adsorbed onto the surface of the adsorption cylinder 28. Further, the upper polarizing film unit 20 is rotated in a state of being adsorbed onto the adsorption cylinder 28.

The release film 14 of the upper polarizing film unit 20 should be removed before being attached to the panel 10. The release film removing portion 29 is attached to one surface of the front portion of the adsorption tube 28, whereby the release film 14 is separated when the upper polarizing film unit 20 rotates together with the adsorption tube 28.

The release film removing portion 29 includes an adhesive tape 292 attached to the release film 14; a release film recovery roller; and a release roller 293 for selectively attaching the adhesive tape 290 to the upper polarizing film adsorbed on the adsorption cylinder 28. The release film 14 of the unit 20 is in contact. The release film recovery roller may include a unwinding roller 291 and a winding roller 294, wherein the adhesive tape 292 is wound around the outer peripheral surface of the unwinding roller 291 and the adhesive tape 292 is rotated in a releasing direction, and the winding roller 294 is used for winding Adhesive tape released by unwinding roller 291 292.

The release roller 293 is installed between the unwinding roller 291 and the winding roller 294, and the back of the adhesive tape 292 is pulled to the outer peripheral surface thereof. Further, the release roller 293 is pulled to the adsorption tube, and thereby the adhesive tape 292 is brought into contact with the upper polarizing film unit 20. Here, the adhesion force of the adhesive tape 292 is greater than the adhesion force so that the release film 14 is held in a state of being attached to the upper polarizing film 21.

When the upper polarizing film unit 20 is rotated together with the adsorption cylinder 28 in a state of being adsorbed onto the adsorption cylinder 28, the release film 14 of the upper polarizing film unit 20 is adhered to the adhesive tape 292, and is transmitted through the release film removal portion. 29 is restored to the winding roller 294. Further, the protective film 13 and the upper polarizing film 11 are rotated and moved into the film attaching region into which the panel 10 is fed.

On the other hand, the top of the adsorption cartridge 28 is provided with the panel feeding portion 30, and the panel feeding portion 30 feeds the panel 10 to which the polarizing film is attached to the upper polarizing film attachment region. Further, the panel 10 is fed to the panel feeding portion 30 through the panel supply unit 31.

The panel feeding portion 30 may include an inlet feeding portion 32 that feeds the panel 10 to the entrance of the upper polarizing film attachment region, and an outlet feeding portion 33 that feeds the panel 10 from the upper polarizing film attachment region to the next process, that is, the lower portion The polarizing film attaching process; and the panel supply unit 31, adsorbs the panel 10 and places it to the inlet feeding portion 32.

Further, the inlet feed portion 32 and the outlet feed portion 33 may include a feeding device configured with a conveyor belt or a plurality of rollers. The film attaching area is provided with an attaching roller 36, and the attaching roller 36 may be disposed at a position spaced apart from the top of the adsorption cylinder 28 by the same interval as the thickness of the panel 10. The applicator roller 36 can be movably disposed vertically.

When the panel 10 passes the space between the attaching roller 36 and the adsorption cylinder, the polarizing film 11 adsorbed on the adsorption cylinder 28 is attached to the panel 10 guided by the inlet feeding portion 32.

The panel 10 placed on the panel feeding portion 30 moves in a state in which the longer side of the panel faces the feeding direction.

The panel 10 includes a first surface 101 to which the upper polarizing film 11 is attached, and a second surface 102 to which the lower polarizing film 12 is attached, and the panel 10 is attached with a film. The surface faces the adsorption tube 28 and enters the film attachment area. That is, the panel 10 is moved in a state where the first surface 101 faces the adsorption tube in the upper polarizing film attachment region.

Further, since the release film 14 is separated, a surface of the upper polarizing film 11 exposed thereto faces the first face 101 of the panel 10. Further, when rotating at the same linear velocity as the moving speed of the panel 10, the adsorption tube 28 attaches the upper polarizing film 11 to the first surface 101 of the panel 10 by the pressure applied by the attaching roller 36.

Here, the upper polarizing film 11 is attached to the panel 10, the adsorption state of the adsorption cylinder 28 is gradually released, and the upper polarizing film 11 attached to the panel 10 is separated from the adsorption cylinder 28.

As such, when the upper polarizing film 11 is adsorbed onto the adsorption tube 28, the adsorption tube 28 gradually attaches the upper polarizing film 11 to the surface of the panel 10 while rotating along the surface of the panel 10, and thereby the film and the panel can be caused The phenomenon of bubbles between them is minimized.

As in the past, when viewed from the side, the film is provided in a state of being formed at an angle upward or downward with respect to the panel, and thus the film is attached to the panel during the film attachment process by the pressing roller separated by the rotation, There is a high probability that bubbles will form between the film and the panel.

Further, when the pressure applied by the film through the pressing roller is irregularly stretched, the film becomes thin, the film is overlapped and attached to the panel, the calibration thereof is lowered, or the film is stretched due to the stretching of the film. The rear end is longer than the rear end of the panel, thus causing the film to protrude from the panel.

However, as the film of the present invention adsorbed on the cylinder is gradually brought into contact with the panel, the problems caused by the above-mentioned prior art are solved.

The panel 10 to which the upper polarizing film 11 is attached when passing the attaching roller 36 and the adsorption cylinder 28 is moved into the next process through the outlet feeding portion 33. The longer side of the panel 10 is moved toward the feeding direction, whereby the upper polarizing film 11 and the panel 10 are correctly aligned.

The panel 10 fed along the outlet feeding portion 33 is inverted to 180 by the turning device 50. That is, it is rotated to 180° with respect to the horizontal axis such that the first face 101 to which the upper polarizing film 11 is attached faces upward, and the second face 102 with respect to the first face 101 faces downward. Further, in a state of being turned upside down, the panel 10 is fed into the lower film attaching area. An example of the flipping device 50, although not shown in detail It is shown that the top and bottom of the panel 10 can be picked up and rotated through the robotic arm structure, or the front and rear ends of the panel 10 can be picked up and rotated through the robotic arm structure.

On the other hand, when the defect detecting device 24 finds the defective portion, the upper polarizing film unit 20 including the defective portion is cut by the cutter 25 to a specific size. In addition, when the defective film portion is adsorbed on the adsorption tube 28 and rotated, the adsorption force of the adsorption tube 28 is gradually removed as the release film 14 is attached to the adhesive tape 292, thereby releasing the adsorption state. That is, when the adsorption state of the adsorption cylinder 28 corresponding to the region pulled up to the release roller 293 is released, the defective film region does not move to the film attachment region, but is restored to the winding roller 294. With the above configuration, since the release film removing portion 29 also performs the defective film removing function, it is not necessary to provide for the removal as disclosed in the prior art (Japanese Patent Registration No. 10-9077550). A removal device for removing a defective film portion.

On the other hand, the film rotating device 26 can remove the defective film by an arrangement that increases the horizontal movement in the case where the adsorption tube 28 utilizes the method of adhering the sheet.

6 and 7 are process diagrams showing a method for rotating a film according to another embodiment of the present invention.

Hereinafter, the same component symbols will be denoted by the same components in the specification, and the repeated description will be omitted.

Referring to Figures 6 and 7, the upper polarizing film unit 20, which is completely cut by the cutter 25 in accordance with the longer side length of the panel 10, is attracted to the adsorption cylinder 28. At this time, the adsorption cylinder 28 is moved and rotated in one direction orthogonally wound in the direction of the upper polarizing film unit 20, whereby the cut upper polarizing film unit 20 is adsorbed on the adsorption cylinder 28. Hereinafter, the direction in which the polarizing film unit 20 is unwound and orthogonally defined is defined as the first direction, and the direction in which the upper polarizing film unit is unwound is defined as the second direction. Therefore, the adsorption cylinder 28 rotates and moves into the first direction, and thereby the cut upper polarizing film unit 20 is adsorbed to the outer peripheral surface.

In this case, the length of the adsorption cylinder 28 illustrated in FIGS. 5 to 7 is equal to or larger than the length of the longer side of the cut upper polarizing film unit 20, and the circumference of the adsorption cylinder 28 should be at least equal to Or greater than the shorter side length of the cut upper polarizing film unit 20.

On the other hand, when the cut upper polarizing film unit 20 is adsorbed to the adsorption When the cartridge 28 is on, it is characterized in that the adsorption cylinder 28 is rotated to 90 on the vertical axis Y, and thereby the cut upper polarizing film unit 20 is rotated. Further, in a state of being rotated to 90° on the vertical axis Y, the adsorption cylinder 28 is moved toward the release film removing portion 29, and thereby the process of attaching the release film is performed. Since the process after it is the same as that explained in FIG. 5, the related description will be omitted below.

Thus, the present invention is characterized in that the adsorption tube 28 in the present embodiment introduces a film which is rotated to 90° into the film attachment region without using the separation film rotating device but directly through the rotation.

Fig. 8 is a flow chart showing a process of attaching a lower polarizing film in a filming system according to an exemplary embodiment of the present invention, and Fig. 9 is a process chart to which the lower polarizing film is attached.

Referring to Fig. 8, in order to attach the lower polarizing film 12 to the second surface 102 of the panel 10, first, a winding type lower polarizing film unit 40 is provided (S41). At this time, the width of the lower polarizing film unit 40 may be formed in a size corresponding to the length of the longer side of the panel 10.

The lower polarizing film unit 40 is provided to be half-cut at an interval corresponding to the length of the shorter side of the panel 10 (S42). Here, the half cutting means that the protective film 13 and the lower polarizing film 12 other than the release film 14 are cut by a cutter. Here, a portion of the release film 14 can be cut, but not completely cut.

Further, a part of the half-cut lower polarizing film unit 40, that is, the protective film 13 and the lower polarizing film 12, is adsorbed onto the adsorption tube (which will be described later), and the release film 14 is lowered from the lower side. The polarizing film 12 is separated on the release film and wound onto a release film recovery roller (which will be described later) and recovered (S43). Finally, the lower polarizing film 12 exposed by separating the release film 14 is attached to the second face 102 of the panel 10 (S44), thereby ending the lower polarizing film attaching process.

Referring in more detail to FIG. 9, a lower polarizing film attaching system according to an embodiment of the present invention includes a film roll 210 wound around the lower polarizing film unit 40; a film feeding portion 220 that feeds the lower polarizing film unit 40 to the cutting area; a defect detecting device 240 of a defect state of the lower polarizing film unit 40; a cutter 250 that half-cuts the lower polarizing film unit 40; an adsorption cylinder 280 that adsorbs the half-cut lower polarizing film unit 40; and recovers the uncut release film 14 Release film recovery roll 394; and selective adsorption to the adsorption tube The 280 is such that the semi-cut lower polarizing film unit 40 is selectively tensioned to the release roller 393 of the adsorption cartridge.

Further, the lower polarizing film attaching system includes the panel feeding portion 30 that guides the panel 10 having the inverted top and bottom in the state in which the upper polarizing film 11 is attached, and enters the lower polarizing film attaching region, and feeds the panel 10 to The panel feeding unit 310 of the panel feeding portion 30.

The panel feed system of the lower polarizing film attachment system is almost similar to the panel feed system of the upper polarizing film attachment system. That is, the panel feeding portion 30 of the lower polarizing film attaching system includes the attaching roller 360 that attaches the lower polarizing film 12 to the second face 102 of the panel 10 after pressing the panel 10 at the top of the adsorption cartridge 280.

The film roll 210, the film feeding portion 220, the defect detecting device 240, the cutter 250, the adsorption tube 280, the release roller 393, the release recovery roller 394, the panel feeding portion 30, the panel supply unit 310, and the attaching roller 360 have the above polarizing film attached The same functions as described in the configuration of the system, and thus the related description will be omitted. Further, the release roller 393 and the release recovery roller 394 may be defined as a release film removal portion.

In addition, the panel feeding portion 30 further includes an inlet feeding portion 34 that feeds the panel 10 having the inverted top and bottom to the entrance of the lower polarizing film attaching region, and feeds the panel 10 in a state in which the upper polarizing film 11 is attached The exit feeding portion 35 of the lower polarizing film attachment region is left. Further, the inlet feeding portion 34 and the outlet feeding portion 35 also include a feeding device in which a conveyor belt or a plurality of rollers are disposed.

Further, the inlet feeding portion 34 of the lower polarizing film attaching system may be configured to extend the pattern of the outlet feeding portion 33 of the upper polarizing film attaching system. That is, the panel supply unit 310 may not be disposed in a structure in which the panel 10 having the inverted top and bottom and lying on the inlet feeding portion 34 is fed to the film attachment region.

In more detail, in the top and bottom flipped panel 10, the first face 101 to which the upper polarizing film 11 is attached faces the top, and the second face 102 is fed to the lower polarizing panel in a state of facing the bottom. The entrance to the zone, the adsorption cartridge 280.

Further, the width of the lower polarizing film unit 40 is formed in accordance with the size corresponding to the length of the longer side of the panel 10, and the cutter 250 half cuts the lower polarizing film unit 40 at intervals corresponding to the shorter side length of the panel 10. Half-cut and full-cut can be set by controlling the cutting depth of the tool. That is, semi-cutting and full cutting are based on Determined by the depth of the tool. The half cut is cut at the same depth as the full width of the lower polarizing film unit 40, or is cut at a different depth from the center and the edge in the width direction.

On the other hand, the lower polarizing film unit 20, which is half-cut by the cutter 250 at intervals corresponding to the shorter side length of the panel 10, moves to the adsorption cylinder 280. At this time, the cut lower polarizing film unit 20 is not fed through the separation feeding device, and the uncut release film 14 is fed by winding the release film recovery roller 394.

After the release roller 393 is pulled to the adsorption cylinder 280, the protective film 13 of the lower polarizing film unit 20 is adsorbed onto the adsorption cylinder 280, and the release film 14 is moved to the release film recovery roller 394. That is, the protective film 13 and the lower polarizing film 12 are transferred to the adsorption tube 280 and rotated, and the release film 14 is separated only from the lower polarizing film 12 and wound to the release film recovery roller 394. Further, the surface of the lower polarizing film 12 that is exposed due to the separation of the release film 14 is attached to the second face 102 of the panel 10. That is, the lower polarizing film 12 and the panel 10 are attached to each other when passing through the space between the attaching roller 360 and the adsorption cylinder 280. The lower polarizing film 12 is attached, and the panel 10 lying on the exit feeding portion 35 is fed to the next place. In the panel 10 that has passed through the upper polarizing film attaching system and the lower polarizing film attaching system, the top and bottom are reversed and the longer and shorter sides are not rotated. That is, the longer side is fed in a state of being kept toward the feeding direction, so that the feeding scheme of the panel 10 is different from that in the above-described prior art.

On the other hand, when the defect detecting device 24 finds the defective state, the cutter 250 half-cuts the defective portion in accordance with a certain size. Further, the half-cut defective portion is fed into the release roller 393. At this time, the operation of the release roller 393 is different from the case of the well-fed lower polarizing film unit 40. That is, when the good lower polarizing film unit 40 is fed, the release roller 393 is moved to the adsorption cylinder 280, so that the half-cut lower polarizing film unit 40 is attached to the adsorption cylinder 280. However, when the defective portion is fed, the release roller 393 is maintained in a state of being spaced apart from the adsorption cylinder 280. Therefore, the defective portion is not adsorbed onto the adsorption cylinder 280, but is wound around the release film 14 to the release film recovery roller 394. Therefore, it is not necessary to provide a means for recovering the separation defect film.

In the above embodiment, the width of the upper polarizing film unit 20 is provided in a size corresponding to the length of the shorter side of the panel 10, and the width of the lower polarizing film unit 40 is in accordance with the size corresponding to the length of the longer side of the panel 10. Come on, but vice versa Of course. That is, the width of the upper polarizing film unit 20 is provided in a size corresponding to the length of the longer side of the panel 10, and the width of the lower polarizing film unit 40 is provided in a size corresponding to the length of the shorter side of the panel 10.

Further, as an example, the upper polarizing film is rotated to 90°, but it can also be rotated to other specific angles according to the configuration of the attaching system and is not limited to 90°.

10‧‧‧ panel

101‧‧‧ first side

102‧‧‧ second side

11‧‧‧ polarizing film / upper polarizing film

13‧‧‧Protective film

14‧‧‧ release film

20‧‧‧Upper polarizing film unit

21‧‧‧ Film roll/upper polarizer

22‧‧‧ Film Feeding Department

23‧‧‧cut bed

24‧‧‧ Defect monitoring device

25‧‧‧Tools

26‧‧‧film rotating device

27‧‧‧Adsorption bed

28‧‧‧Adsorption cartridge

29‧‧‧ Release Film Removal Department

291‧‧·Unwinding roller

292‧‧‧Adhesive tape

293‧‧‧Release roller

294‧‧‧ winding roller

30‧‧‧ Panel Feeding Department

31‧‧‧ Panel supply unit

32‧‧‧Inlet Feeding Department

33‧‧‧Export Feeding Department

36‧‧‧ Attachment roller

50‧‧‧Flipping device

Claims (33)

A filming system for attaching a polarizing film having optical anisotropy to both sides of a panel, the filming system comprising: a first polarizing film attaching system for attaching a first polarizing film to the a first surface of the panel; and a second polarizing film attaching system for attaching a second polarizing film to a second side of the panel, wherein the first polarizing film attaching system comprises: a panel feeding a portion for feeding the panel to a first polarizing film attaching region; a film supplying portion for supplying a first polarizing film unit, the first polarizing film unit including the first polarizing film, attached to the a protective film on one side of the first polarizing film, and a release film attached to the other side of the first polarizing film; a film feeding portion for feeding the first polarizing film; and a cutter for completely Cutting the first polarizing film unit fed by the film feeding portion; a first adsorption tube for adsorbing the first sheet having a sheet shape by being completely cut by the cutter on an outer peripheral surface thereof Guided by rotation in the state of the polarizing film a polarizing film unit enters the first polarizing film attaching region; and a release film removing portion for separating the release film of the first polarizing film adsorbed onto the first adsorption tube, wherein the tool is completely The cut first polarizing film unit is rotated to a predetermined angle with respect to a vertical axis before reaching the first polarizing film attaching region, and wherein when the first adsorption cartridge rotates and the panel moves, the first contact The first polarizing film on the surface of the adsorption tube is attached to the first side of the panel in the attachment region of the first polarizing film. The film coating system of claim 1, further comprising a film rotating device for rotating the first polarizing film unit completely cut by the tool. The film-coating system according to claim 1, wherein the first polarizing film unit completely cut by the tool is adsorbed onto the first adsorption tube, and in a state in which the first polarizing film unit is adsorbed, The first adsorption cylinder is rotated to a predetermined angle with respect to the vertical axis. The film-coating system according to claim 1, wherein the release film removing portion comprises: an adhesive tape; an unwinding roller for unwinding the adhesive tape; and a winding roller for winding the adhesive tape And a release roller for pressing the adhesive tape such that an adhesive surface of the adhesive tape closely contacts the adsorption cartridge. The filming system according to claim 1, further comprising an attaching roller disposed at a position spaced apart from the first adsorption tube in the first polarizing film attaching region, wherein When the panel passes through the gap between the attaching roller and the first adsorption cartridge, the pressure of the first polarizing film adsorbed to the first adsorption cartridge through the attaching roller is attached to the first of the panel surface. The film-coating system of claim 1, wherein the second polarizing film attaching system comprises: a panel feeding portion for feeding the panel of the first polarizing film to a second polarizing film attaching region a film supply unit for supplying a second polarizing film unit, the second polarizing film unit including the second polarizing film and one of the second polarizing films attached thereto a protective film of the face, and a release film attached to the other side of the second polarizing film; a film feeding portion for feeding the second polarizing film unit; and a cutter for performing half cutting, the tool Cutting the protective film of the second polarizing film unit fed by the film feeding portion and the second polarizing film, and cutting or cutting only a part of the release film; a second adsorption tube borrowing Rotating in a state in which the protective film and the second polarizing film of the second polarizing film unit having a sheet type are adsorbed by the cutter on the outer peripheral surface thereof by half cutting; and a release film removing portion, The release film of the second polarizing film unit is removed from the second polarizing film. The film-coating system according to claim 6, wherein the release film removing portion of the second polarizing film attaching system comprises: a release film recovery roller for winding and recovering the second polarizing film unit The release film; and a release roller for selectively contacting the second polarizing film unit to the second adsorption tube. The film-coating system according to claim 6, wherein the protective film of the second polarizing film unit is disposed in a direction in close contact with the outer peripheral surface of the second adsorption tube. The film coating system according to claim 1 or 6, wherein the first adsorption tube or the second adsorption tube is a vacuum adsorption type cylinder or an adhesive sheet having a surface fixed to an outer peripheral surface thereof. Tube. The film-coating system according to claim 1, wherein the protective film of the first polarizing film unit is disposed in a direction in close contact with the outer peripheral surface of the first adsorption tube. The filming system of claim 1, further comprising a turning device for flipping the panel to which the first polarizing film is attached by 180° with respect to a horizontal axis. The film-coating system according to claim 1, wherein the first polarizing film is rotated to an angle equal to or smaller than 90°. A filming system for attaching a polarizing film having optical anisotropy to both sides of a panel, the filming system comprising: a first polarizing film attaching system for attaching a first polarizing film to the a first surface of the panel; and a second polarizing film attaching system for attaching a second polarizing film to a second side of the panel, the second polarizing film attaching system comprising: a panel feeding portion For feeding the panel to a second polarizing film attaching area; a film supply portion for supplying the second polarizing film unit, the second polarizing film unit including the second polarizing film, attached to the first a protective film on one of the two polarizing films, and a release film attached to the other side of the second polarizing film; a film feeding portion for feeding the second polarizing film unit; and a cutter for performing a half-cutting, the cutter cutting the protective film of the second polarizing film unit fed through the film feeding portion and the second polarizing film, and cutting or cutting only a part of the release film; By being on the outer peripheral surface of the tool by the cutter Rotating in a state in which the protective film and the second polarizing film of the second polarizing film having a sheet type are half-cut, and a release film removing portion for removing the first polarizing film The release film of the dichroic film unit. The film-coating system according to claim 13, wherein the release film removing portion of the second polarizing film attaching system comprises: a release film recovery roller for winding and recovering the second polarizing film unit The release film; and a release roller for selectively contacting the second polarizing film unit to the adsorption tube. The film-coating system according to claim 13, wherein the protective film of the second polarizing film unit is disposed in a direction in close contact with the outer peripheral surface of the adsorption tube. The film coating system according to claim 13, wherein the adsorption cylinder is a vacuum suction type cylinder or a cylinder having an adhesive sheet fixed to an outer peripheral surface thereof. A film sticking method for attaching a polarizing film having optical anisotropy to both sides of a panel in a filming system, the filming method comprising: supplying and feeding a first polarizing film unit, the first polarizing film unit a first polarizing film, a protective film attached to one side of the first polarizing film, and a release film attached to the other side of the first polarizing film; feeding the panel to a first polarizing film a film attaching region; the first polarizing film unit is completely cut from the protective film of the first polarizing film unit to the release film by a cutter; the first polarizing film unit is completely cut relative to a vertical axis Rotating to a predetermined angle; separating the release film of the first polarizing film unit that has been rotated; moving the first polarizing film having a surface exposed through the separation of the release film to the first polarizing film Membrane attachment area; The exposed surface of the first polarizing film is attached to a first side of the panel. The film-coating method according to claim 17, wherein the first polarizing film unit that is completely cut is adsorbed to a first adsorption tube after being rotated by an optical rotating device to an angle equal to or smaller than 90°. Separately rotating with the first adsorption tube and being guided into the first polarizing film attachment region. The film-coating method according to claim 17, wherein the first polarizing film unit that is completely cut is rotated to be equal to or smaller by rotating the first adsorption tube after being adsorbed onto a first adsorption tube. An angle of 90° is separately rotated with the first adsorption cylinder and guided into the first polarizing film attachment region. The film sticking method according to claim 18, wherein the first polarizing film unit is adsorbed onto the first adsorption tube and guided into the first polarizing film attaching region When rotating in the middle, the release film is separated from the first polarizing film through a release film removing portion. The film sticking method according to claim 20, wherein when the first polarizing film is attached to the first face of the panel, the adsorption state of the first adsorption cartridge is released, and the first polarizing film Separated from the first adsorption cartridge. The film sticking method according to claim 21, wherein the panel to which the first polarizing film is attached is inverted by 180° through a panel inverting device when passing through the first film attaching region. The film coating method according to claim 22, further comprising: supplying the panel inverted by 180° to a second polarizing film attaching region; feeding and feeding a second polarizing film unit, the second polarizing film The unit includes a second polarizing film, a protective film attached to one of the second polarizing films, and a release film attached to the other side of the second polarizing film; Cutting the protective film of the second polarizing film unit and the second polarizing film to half cut the second polarizing film unit; separating when the second polarizing film unit to be half-cut is adsorbed onto the second adsorption tube The release film; the second polarizing film separated from the release film by the rotation of the second adsorption tube enters the second polarizing film attachment region; and when the panel passes through the second polarizing film The second polarizing film is attached to a second side of the panel when the area is attached, wherein the second side is the back side of the first side. The film-coating method according to claim 23, wherein the first polarizing film and the second polarizing film have the same optical anisotropy, and the width of the first polarizing film unit has a longer side corresponding to the panel Or the size of the length of any one of the shorter sides, and the width of the second polarizing film unit has a size corresponding to the length of the longer side of the panel and the other of the shorter sides. A film coating method comprising: feeding a panel to a first polarizing film attaching region; attaching a first polarizing film to a first surface of the panel in the first polarizing film attaching region; The panel to which the first polarizing film is attached is vertically inverted by 180°; the panel vertically inverted is fed to a second polarizing film attachment region; A second polarizing film is attached to a second side of the panel in the second polarizing film attachment region, wherein the second surface is the back surface of the first surface. The film sticking method according to claim 25, wherein the step of attaching the first polarizing film comprises: supplying a first polarizing film unit, the first polarizing film unit including the first polarizing film, attached to the film a protective film on one side of the first polarizing film, and a release film attached to the other side of the first polarizing film; the first polarizing film unit is completely cut; the first polarizing film unit is opposite to the first Rotating the vertical axis to a predetermined angle; separating the release film; and attaching the first polarizing film to a first side of the panel. The film sticking method according to claim 26, wherein the release film is transmitted through a release film when the first polarizing film unit that is completely cut is rotated in a state of being adsorbed onto an adsorption tube The removal portion is separated from the first polarizing film. The film sticking method according to claim 27, wherein an adsorption force of the adsorption tube is maintained when the release film is separated, when the first polarizing film is attached to the first side of the panel This adsorption force of the adsorption cartridge is released. The film sticking method according to claim 28, wherein when the first polarizing film unit adsorbed onto the adsorption tube is a defective film, the adsorption force of the adsorption tube is separated when the release film is separated freed. The film sticking method according to claim 25, wherein the step of attaching the second polarizing film comprises: Supplying a second polarizing film unit, the second polarizing film unit including the second polarizing film, a protective film attached to one side of the second polarizing film, and attached to the other side of the second polarizing film a release film, semi-cutting the second polarizing film unit to exclude a portion of the release film, adsorbing the semi-cut second polarizing film unit onto the adsorption tube, rotating the adsorption tube, and separating the second polarized light The release film of the film unit and the second polarizing film from which the release film is separated are attached to the second side of the panel. The film sticking method according to claim 30, wherein the step of separating the release film of the second polarizing film unit comprises: pushing the second polarizing film unit with a release roller and bringing the second polarizing film unit tight Contacting the adsorption cartridge, applying an adsorption force to the adsorption cartridge, and separating the release film from the second polarizing film when the release film is wound onto the release film recovery roller. The film sticking method according to claim 31, wherein the release roller is spaced apart from the adsorption cylinder when the second polarizing film unit that is half-cut is a defective film. A film sticking method for attaching a polarizing film having optical anisotropy to both sides of a panel in a filming system, the filming method comprising: attaching a first polarizing film, flipping the panel and attaching a first a second polarizing film, wherein the step of attaching the first polarizing film comprises: supplying and feeding a first polarizing film unit, the first polarizing film unit being configured to have a width corresponding to a shorter side of the panel, the first The polarizing film unit is wound into a roll type and includes the first polarizing film, a protective film attached to one of the first polarizing films, and a release film attached to the other side of the first polarizing film; the first polarizing film attaching region is directed to the longer side of the panel Feeding the panel to a first polarizing film attaching region; and cutting the protective film from the first polarizing film unit to the release film through a cutter corresponding to the length of the longer side of the panel Cutting the first polarizing film unit that is completely cut to a predetermined angle with respect to a vertical axis; transferring the first polarizing film unit having a sheet shape that is completely cut to the outside of the first adsorption tube Separating the transferred release film of the first polarizing film unit; moving the first polarizing film having a surface exposed through the separation of the release film to the first polarizing film And affixing the exposed surface of the first polarizing film exposed through the separation of the release film to a first side of the panel when the first adsorption cartridge is rotated, wherein the step of flipping the panel Including: flipping the first polarizing film is a panel attached thereto; and feeding the inverted panel into a second polarizing film attaching region in a state in which the longer side of the panel is directed to the second polarizing film attaching region, wherein the first portion is attached The step of polarizing the film includes: supplying and feeding a second polarizing film unit configured to have a width corresponding to the longer side of the panel, the second polarizing film unit being wound into a roll And comprising a second polarizing film, a protective film attached to one of the second polarizing films, and a release film attached to the other side of the second polarizing film; Cutting the protective film and the second polarizing film, and cutting or cutting a part of the release film to semi-cut the second polarizing film unit with a length corresponding to a shorter side of the panel; Separating the protective film of the second polarizing film unit and the second polarizing film when the half-cut film is transferred to a second adsorption tube; and separating the release film when the panel passes the second polarizing film attachment region The second polarizing film is attached to a second side of the panel.