KR102208089B1 - System for attaching Polarizing film and Method for attaching Polarizing film - Google Patents

Abstract

The present invention relates to a film attaching system and a film attaching method, by detecting a pattern of a polarizing film, correcting the position of the panel according to the direction of the pattern, and adjusting the position of the film unit supplied to the peeling unit, It characterized in that the polarizing film is attached to one surface of the panel so as to be constant.

Description

Polarizing film attaching system and polarizing film attaching method {System for attaching Polarizing film and Method for attaching Polarizing film}

The present invention relates to a polarizing film attachment system and a polarizing film attachment method.

The present invention relates to a system and a method of attaching a film to a panel during the manufacturing process of a display panel such as an LCD module. The film unit supplied in the form of a roller is half-cut and the heart-cut polarizing film is The present invention relates to a system and method for attaching a polarizing film whose pattern is corrected to a display panel by correcting a pattern.

1 is a view showing an attachment process of a conventional optical film attachment system.

Referring to FIG. 1, a system for correcting a conventional optical film and attaching it to a panel operated as follows.

In Figure 1 (a), in the film unit stacked in the order of the protective film 4, the optical film 3 and the release film 2, the release film 2 is in contact with one end of the peeling part 60. The rear end of the panel 6 to which the optical film 3 is attached is discharged from the bonding roller 50.

In (b) of FIG. 1, the film transfer unit (not shown) is rewinded so that the film unit moves backward. In this case, the front ends of the half-cut optical film 3 and the protective film 4 are moved backward to the feeding position 80.

In Figure 1 (c), the film tip detection device 70 photographs the tip of the optical film 3 and the protective film 4 located at the feeding position 80, and the optical film 3 is the feeding position 80. ) To detect the position. Here, if the optical film 3 is tilted or folded to an extent that deviates from the proper standard of the feeding position 80, the film transfer unit winds or rewinds the film unit to move forward or backward, so that the optical film 3 is moved to the feeding position ( Adjust the position of the optical film 3 so as not to deviate from the appropriate standard of 80).

In (d) of FIG. 1, when the optical film 3 does not deviate from the proper standard of the feeding position 80, the film transfer unit transfers the film unit to one end of the peeling unit 60, and the optical film of the film unit (3) and the end of the protective film (4) is separated from the release film (2).

In (e) of FIG. 1, when the ends of the separated optical film 3 and the protective film 4 and one surface of the panel contact, the upper and lower rolls 51 and 52 of the attachment roller 50 Each of these descends and rises to press the optical film 3 and the protective film 4 on one surface of the panel 5. In addition, while the upper roll 51 and the lower roll 52 rotate, the optical film 3 and the protective film 4 are attached to one surface of the panel 5.

In the case of the conventional optical film attachment system including the film tip detection device 70, there are the following problems.

First, to check the position of a general optical film, even if only one tip detection device was used, there was no problem, but in the case of a polarizing film used in a stereoscopic image display device, a single detection pattern is formed for realizing a stereoscopic image. There is a problem in that the device cannot detect the warpage of the pattern, and thus the pattern shape of the polarizing film cannot be corrected.

Second, in the case of a general optical film, even if the position is adjusted using a single detection device, the position is changed again in the process of transferring the optical film after the position adjustment, and thus there is a problem that the adhesion between the panel and the optical film is not properly made.

The present invention is proposed to improve the above problems.

The film attachment system for attaching a film to a panel according to an embodiment of the present invention includes a film supply unit supplying a film unit including a polarizing film and a release film attached to one side of the polarizing film, and a transport direction of the film unit. As a reference, the polarization of the film unit is disposed in front of the film supply unit to transfer the film unit supplied from the film supply unit, and the film unit is disposed in front of the film transfer unit and transferred from the film transfer unit. A half-cutting part that cuts only the film, the tip of the polarizing film half-cut from the half-cutting part can be adsorbed or the adsorption state of the polarizing film tip can be released, and in the adsorption state, it moves integrally with the film unit. Thus, the film unit is disposed to be spaced apart from the polarizing film by a predetermined distance between the front and rear ends of the polarizing film, which fixes the film unit so that the film unit does not deviate from the set film movement path. A film pattern detection unit that detects a pattern, a peeling unit that separates the release film from the film unit in which a pattern is detected from the film pattern detection unit, the position of the panel according to the pattern direction of the film unit detected from the film pattern detection unit A release film which is disposed in front of the panel transfer unit and the film peeling unit, which transfers the panel to attach the polarizing film to one surface of the panel, and recovers the release film peeled off from the film peeling unit It may include a recovery unit.

A film attaching method for attaching a film to a panel according to another embodiment of the present invention includes a film unit supply step of supplying a film unit including a polarizing film and a release film attached to one surface of the polarizing film; A film unit transfer step of transferring the film unit to a half cutting unit; A half-cutting step of half-cutting the polarizing film of the film unit; A film unit position adjustment step of adjusting the position of the film unit so that the film unit does not deviate from a set film moving path when the film unit moves so that the tip of the half-cut polarizing film contacts one end of the peeling portion; A polarizing film pattern detection step of detecting a pattern from the front end to the rear end of the half-cut polarizing film; A panel position correction step of correcting a position of the panel such that the direction of the pattern of the polarizing film detected in the polarizing film pattern detection step and the moving direction of the panel are horizontal; The polarizing film peeling and panel attaching step of separating the polarizing film from the film unit and attaching the separated polarizing film to one surface of the panel whose position has been corrected in the panel position correction step; And it may include a release film recovery step of recovering the separated release film.

According to the polarizing film attaching system and the polarizing film attaching method according to an embodiment of the present invention constituting the above configuration has the following effects.

First, since the detection device is located not only at the front end of the film unit, but also at the center and rear ends of the film unit, there is an advantage of being able to check the distortion of the pattern of the polarizing film used in the stereoscopic image display device. Thereby, by correcting the pattern shape of the polarizing film, the release film existing in the cut space between the film and the film accurately half-cut on the panel is kept taut, thereby preventing the release film from being lifted and the release film is wrinkled or torn. Losing can be prevented.

Second, by additionally using an adsorption plate, there is no distortion of the polarizing film in the process of moving after the detection device detects the polarizing film pattern and position, so that the polarizing film is precisely attached to the panel.

1 is a diagram illustrating a film attachment process performed in a conventional optical film attachment system.
2 is a view showing an ideal pattern and an actual pattern shape of the panel used in the polarizing film attachment system according to an embodiment of the present invention.
3 is a film attachment process performed in the polarizing film attachment system according to an embodiment of the present invention.
Figure 4 is a process diagram showing the operation of the film detection correction unit constituting the polarizing film attachment system according to an embodiment of the present invention.
5 is a flowchart schematically illustrating a film attaching method of a polarizing film attaching system according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. The present invention may be implemented in a number of different forms and is not limited to the structure or method described herein.

In general, in order to manufacture a three-dimensional image display device (for example, TV, hereinafter referred to as a 3D device), a polarizing film method (FPR: Film Patterned) that produces a three-dimensional effect by separating left and right images by attaching a polarizing film to the display panel Retarder) is often used. In the polarizing film attached to the panel for the polarizing film method, patterns for left and right eyes are sequentially formed.

2 is a diagram showing an ideal pattern and an actual pattern shape of a panel used in a polarizing film attachment system according to an embodiment of the present invention.

Referring to FIG. 2A, the directions of the ideal patterns 11a and 11b of the polarizing film 11 can be confirmed. The directions of the ideal patterns 11a and 11b of the polarizing film 11 attached to the panel are parallel or perpendicular to one side of the panel. However, when the polarizing film 11 to be attached to the panel is provided in a roll type in an actual process, the film unit is long and the film unit is hit. In this case, the polarizing film patterns 11a and 11b of the supplied film unit are also distorted.

Referring to FIG. 2B, it can be seen an example in which the polarizing film patterns 11a and 11b actually supplied are distorted.

When the polarizing film pattern 11a is attached to the panel in a distorted state as described above, a problem of deteriorating the performance of the panel occurs. Accordingly, a polarizing film attaching system 100 and a polarizing film attaching method according to an exemplary embodiment of the present invention will be described in detail with reference to the drawings.

3 is a diagram illustrating a film attachment process performed in a polarizing film attachment system according to an embodiment of the present invention.

3, the polarizing film attachment system according to an embodiment of the present invention includes a film supply unit 110, a film transfer unit 120, a half-cutting unit 130, a film pattern detection unit 200, and a film adsorption unit 240. ), a peeling unit 150, a panel transfer unit 160, a release film collecting unit 140, and a panel supply unit 170.

The film supply unit 110 supplies the film unit 10 to the film transfer unit 120. In detail, the film supply unit 110 may be in the form of a roller to supply the film unit 10. Then, the film unit 10 is supplied to the film transfer unit 120 while the roll-shaped film supply unit 110 rotates.

In addition, the film unit 10 supplied from the film supply unit 110 may include a protective film, a polarizing film 11 and a release film 12. The protective film serves to prevent damage to the polarizing film 11 attached to the panel, and the release film 12 is removed immediately before the polarizing film 11 is attached to the display panel. It serves to prevent dust and other foreign substances from adhering to the polarizing film 11.

In detail, the film unit 10 may have a structure in which the protective film, the polarizing film 11 and the release film 12 are sequentially stacked. That is, the protective film is attached to one surface of the polarizing film 11, and the release film 12 is attached to the other surface of the polarizing film 11.

The film transfer unit 120 transfers the film unit 10 supplied from the film supply unit 110 to the half-cutting unit 130 and the peeling unit 150. In detail, the film transfer unit 120 may include a plurality of rollers and a tension adjusting device. Then, the film unit 10 may be sequentially transferred to the half-cutting part 130 and the peeling part 150 while maintaining the tension set by a plurality of rollers and a tension adjusting device.

The half-cutting part 130 is a device for half-cutting the film unit 10 by a set length. Here, the term “half cutting” means cutting only the polarizing film 11 and the protective film excluding the release film 12 from the configuration of the film unit 10 by the half cutting unit 130. In this case, the release film 12 may be exposed at a portion where the polarizing film 11 and the protective film are cut by the half-cutting part 130. In this case, the film unit 10 may be half-cut by a set length, and the set length is from the front end to the rear end of the half-cut polarizing film 11 and the protective film of the film unit 10. It's the street. In addition, a part of the release film 12 may be cut, but not completely cut. In one embodiment, when the panel 20 has a rectangular shape, the set length may be a length corresponding to a long side of the panel 20.

The peeling part 150 separates the polarizing film 11 and the protective film half-cut by the film unit 10 from the release film 12. In detail, the peeling unit 150 is a wedge plate having a pointed one end, and when the front end of the film unit 10 passes through one end of the peeling unit 150, the film unit 10 ) Of the polarizing film 11 and the front end of the protective film are partially separated from the front end of the release film 12.

The release film recovery unit 140 serves to recover the release film 12 separated from the film unit 10 by the release unit 150. In detail, the release film recovery unit 140 may include a plurality of rollers and a release film recovery roll. In detail, the peeled release film 13 is recovered by being wound on the release film recovery roll when the plurality of rollers and the release film recovery roll rotate.

The panel transfer unit 160 transfers the panel 20 to attach the polarizing film 11 and the protective film separated by the peeling unit 150 to the panel 20, and the polarizing film ( 11) And transfer the panel 20 to which the protective film is attached. In detail, while the polarizing film 11 is directly in contact with and attached to the attachment surface of the panel 20, the protective film laminated on the polarizing film 11 may also be indirectly attached to the panel 20. In detail, the panel transfer unit 160 may include an inlet side transfer unit 161, an attachment unit 162 and an outlet side transfer unit 163.

The inlet side transfer part 161 receives the panel 20 from the panel supply unit 170, and the polarizing film 11 and the protection in which the panel 20 is separated from the peeling part 150 The panel 20 is transferred to the attachment roller 162 so as to contact the front end of the film. In one embodiment, the inlet side transfer part 161 may include a conveyor belt or a plurality of rollers, but the panel 20 is transferred to contact the front end of the polarizing film 11 and the protective film. If possible, there are no restrictions on its structure.

The attachment part 162 attaches the polarizing film 11 and the protective film to the panel 20 transferred through the inlet side transfer part 161. In detail, the attachment part 162 may include an upper attaching roll 162a and a lower attaching roll 162b. When the panel 20 contacts the polarizing film 11 and the front end of the protective film, the upper bonding roll 162a descends and the lower bonding roll 162b rises. At this time, the panel 20, the polarizing film 11, and the protective film are disposed between the upper mounting roll 162a and the lower mounting roll 162b, and the upper mounting roll 162a and the lower It is pressed by the attachment roll (162b). In addition, when the upper mounting roll 162a and the lower mounting roll 162b rotate, the polarizing film 11 and the protective film are attached to the attachment surface of the panel 20 by a pressing force and a rotational force.

The outlet side transfer part 163 serves to transfer the polarizing film 11 and the panel 20 to which the protective film is attached to a place where the next process is performed by the attachment part 162. In one embodiment, the outlet side transfer part 163 may include a conveyor belt or a plurality of rollers, like the inlet side transfer part 161, but transfers the panel 20 to a place where the next process is performed. If you can, there are no restrictions on its structure.

Further, the entrance side transfer unit 161 receives a detection result from a control unit (not shown) when the film pattern detection unit 200 to be described later detects the pattern of the polarizing film 11. In addition, before the polarizing film 11 and the protective film are attached to the panel 20 by the attachment roller 162, the inlet side transfer part 161 has a pattern shape of the polarizing film 11 and The position of the panel 20 is adjusted so that the short side or the long side of the panel 20 is horizontal. That is, when the pattern of the polarizing film 11 is bent, the position of the panel 20 may be adjusted as much as that of the polarizing film 11, and the transfer direction of the panel 20 may be adjusted.

The panel supply unit 170 supplies the panel 20 to the panel transfer unit 160. In detail, the panel supply unit 170 may be disposed above the inlet side transfer unit 161 of the panel transfer unit 160 to supply the panel 20 to the upper surface of the inlet side transfer unit 161.

The film adsorption unit 240 fixes the position of the film unit 10 by adsorbing the front end or part of the half-cut polarizing film 11 of the film unit 10 before entering the peeling unit 150 In addition, the adsorption state of the film unit 10 can be released. In addition, the film adsorption unit 240 may adsorb the entire film unit 10 in the width direction (orthogonal to the moving direction) of the film unit 10.

In addition, the film adsorption unit 240 may advance integrally with the film unit 10 along the lower surface of the peeling unit 150 in a state where the film unit 10 is adsorbed, and the film unit 10 When the polarizing film 11 and the protective film of) come into contact with one end of the peeling unit 150, the adsorption state of the film unit 10 is released, and the film unit 10 may be moved backward and returned to the original position.

In detail, a vacuum adsorption hole for vacuum adsorption is formed on the adsorption surface on which the film adsorption unit 240 adsorbs the film unit 10 to adsorb the polarizing film 11 and the protective film, or a certain level of adhesion A pressure-sensitive adhesive sheet having a is fixed to the adsorption surface of the film adsorption unit 240 so that the polarizing film 11 and the protective film are attached to the pressure-sensitive adhesive sheet. However, if the film unit 10 can be adsorbed on the adsorption surface, there is no limitation on the adsorption method.

In detail, when the film unit 10 is transferred by the film transfer unit 20, the film adsorption unit 240 includes the half-cut polarizing film 11 and the protective film among the film unit 10. It can be arranged to be adsorbed at the front end position of the. In more detail, a position where the front end of the film adsorption part 240 and the front end of the polarizing film 11 and the protective film coincide or the front end of the film adsorption part 240 is the polarizing film 11 and the protective film. The film adsorption unit 240 may be adsorbed to the film unit 10 in a state disposed behind the front end portion at a predetermined interval. In addition, until the polarizing film 11 and the front end of the protective film are separated from the release film 12 at one end of the peeling part 150, the film adsorption part 240 is connected to the film unit 10 It can be moved to the film moving path integrally. The film moving path is a path through which the film unit moves so that the half-cut polarizing film 11 and the front end of the protective film and one end of the peeling part 150 are parallel to each other. . Alternatively, the half-cut polarizing film 11 of the film unit 10 and the front end of the protective film are a path that moves in the direction of the peeling part 150. A detailed description of the operation of the film adsorption unit 240 will be described later.

The film pattern detection unit 200 is disposed at least two or more between the half-cut polarizing film 11 and the front and rear ends of the protective film to detect the pattern of the polarizing film 11. Preferably, the film pattern detection unit 200 may include a front end pattern detection unit 210, a rear end pattern detection unit 220, and a center pattern detection unit 230 to detect a pattern of the polarizing film 11.

The shear pattern detection unit 210 is spaced apart from the front end of the half-cut polarizing film 11 at a predetermined interval, and is disposed in a spaced apart from the upper mounting roll 162a and the lower mounting roll 162b. A pattern formed on the front end of the polarizing film 12 is detected. In detail, the shear pattern detection unit 210 may be in the form of a detection camera, and may detect the pattern shape by photographing a pattern shape having a predetermined length from the front end of the polarizing film 11.

In addition, the shear pattern detection unit 210 moves backward or moves backward so as not to interfere with the lower mounting roll 162b when the upper mounting roll 162a and the lower mounting roll 162b move downward or upward, respectively. You can return to the original position. In detail, a cylinder or the like is connected to the shear pattern detection unit 210, and the shear pattern detection unit 210 may reciprocate due to the movement of the cylinder.

The rear end pattern detection unit 220 detects a pattern formed at the rear end of the half-cut polarizing film 11. In detail, the rear-end pattern detection unit 220 may be in the form of a detection camera, and may detect the pattern shape by photographing a pattern shape having a predetermined length in a direction from the rear end of the polarizing film 12 to the front end.

In addition, since the initial position of the rear end pattern detection unit 220 does not interfere with the upper mounting roll 162a and the lower mounting roll 162b, it may be fixed without connecting a separate moving means.

The central pattern detection unit 230 is spaced apart from the central portion of the half-cut polarizing film 11 at a predetermined interval to detect a pattern formed in the central portion of the polarizing film 12. In detail, the central pattern detection unit 230 may be in the form of a detection camera, and may detect the pattern shape by photographing the pattern shape of the central portion of the polarizing film 12. The pattern detection range of the central pattern detection unit 230 may partially overlap with the detection ranges of the front end pattern detection unit 210 and the rear end pattern detection unit 220.

In addition, since the initial position of the central pattern detection unit 230 does not interfere with the upper mounting roll 162a and the lower mounting roll 162b, it may be fixed without connecting a separate moving means.

Hereinafter, the operation of the polarizing film unit of the polarizing film attaching system according to an embodiment of the present invention will be described.

4 is a process chart showing the operation of the film pattern detection unit and the film adsorption unit constituting the polarizing film attachment system according to an embodiment of the present invention. In addition, FIG. 5 is a flowchart schematically illustrating a method of attaching a film in a system for attaching a polarizing film according to an embodiment of the present invention.

4 to 5, the film attaching method of the polarizing film attaching system according to an embodiment of the present invention includes a film unit supply step (S10), a film unit transfer step (S20), a half cutting step (S30), and a film unit. It may include a position adjustment step (S40), a polarizing film pattern detection step (S50), a panel position correction step (S51), a polarizing film peeling and panel attaching step (S60) and a release film recovery step (S70).

The film unit supply step (S10) is a step of supplying a film unit including a polarizing film and a release film attached to one surface of the polarizing film.

The film unit transfer step (S20) is a step of transferring the film unit to a half cutting unit.

The half-cutting step (S30) is a step of half-cutting the polarizing film of the film unit.

The release film recovery step (S70) is a step of recovering the release film separated from the film unit.

The process of the film unit supply step (S10), the film unit transfer step (S20), the half-cutting step (S30) and the release film recovery step (S70) can be easily performed through the configuration of the polarizing film attaching system according to the embodiment of the present invention. As can be seen, it is a known technique in a general film attachment system, and a detailed description thereof will be omitted.

In the film unit positioning step (S40), the film adsorption part 240 adsorbs the half-cut polarizing film 11 of the film unit 10 and the front end of the protective film, so that the film unit 10 and the This is a step of transferring the film unit 10 to one end of the peeling unit 150 by moving the film adsorption unit 240 integrally. That is, the film adsorption part 240 adsorbs the film unit 10 to adjust the position of the film unit 10 so that the film unit 10 is transferred to a set film transfer path. The set film transfer path refers to a path through which the film unit 10 is transferred to one end of the peeling unit 150 in a certain direction without shifting. As will be described later, when the film adsorbing part 240 is transferred to the front end of the half-cut polarizing film 11 and the protective film of the film unit 10 and contacts one end of the peeling part 150, the film unit It is possible to release the adsorption state of (10) and return to the original position to adsorb the front end of the subsequent polarizing film.

The polarizing film pattern detecting step (S50) is a step of detecting a pattern between the front end and the rear end of the half-cut polarizing film 11. In detail, the film pattern detection unit 200 spaced apart from the polarizing film 11 at a predetermined interval detects the pattern of the polarizing film half-cut. In more detail, the shear pattern detection unit 210 detects the shape of the pattern by photographing the pattern of the front end of the polarizing film half-cut, and the central pattern detection unit 230 detects the pattern of the central portion of the polarizing film half-cut. By photographing to detect the shape of the pattern, and by detecting the shape of the pattern by photographing the pattern of the rear end of the polarizing film half-cut by the rear pattern detection unit 220, all the patterns of the front, rear, and center of the polarizing film are detected. can do. Through this, using the detected pattern of the polarizing film, it is possible to detect how much the pattern of the polarizing film is bent in the horizontal and vertical directions.

When the pattern of the polarizing film is bent beyond the reference value in the polarizing film pattern detection step (S50), the position of the panel 20 is corrected in the panel position correction step (S51). In detail, the inlet side transfer part 161 and the outlet side transfer part 163 receive a correction degree according to the detection result of the pattern from a control unit (not shown), and the panel 20 by the attachment roller 162 ) Before the polarizing film 11 and the protective film are attached, the position of the panel 20 so that the polarizing film 11 can be attached in a parallel pattern to the attachment surface of the panel 20 Adjust. That is, the position of the panel 20 is adjusted according to the degree of bending of the pattern of the polarizing film 11 to attach the polarizing film 110 to the panel 20.

In the step of peeling off the polarizing film and attaching the panel (S60), the half-cut polarizing film 11 and the protective film of the transferred film unit are separated from the release film 12, and the peeled polarizing film 11 and protection film The film is attached to the attachment surface of the panel 20.

In detail, when the front end of the half-cut polarizing film 11 and the protective film of the transferred film unit 10 is located at one end of the peeling unit 150, the polarizing film 11 and a part of the protective film are It is separated from the release film 12. In addition, the position of the panel 20 is adjusted according to the degree of bending of the pattern of the polarizing film 11. Thereafter, the polarizing film 11 and the protective film and the panel 20 from which the upper and lower rolls 162a and 162b are separated are pressed and rotated. The panel 20 is moved by the rotation of the attachment roller 162, and the polarizing film 11 and the protective film are attached to the attachment surface of the panel 20. At this time, since the position of the panel is adjusted according to the degree of bending of the pattern of the polarizing film 11, the pattern of the polarizing film 11 is attached to the panel 20 so as to be parallel to the short side or the long side of the panel. do.

Below, an embodiment of the operation of the film unit position adjustment step (S40), the polarizing film pattern detection step (S50), the panel position correction step (S51), and the polarizing film peeling and panel attaching step (S60) It will be described in detail with reference to FIG. 4.

Referring to FIG. 4A, the preceding polarizing film 11 and the protective film are attached to the attachment surface of the panel 20 while being peeled off from the release film 12. The following half-cut polarizing film 11 and the front end portion of the protective film are adsorbed by the film adsorption unit 240. The preceding polarizing film 11 and the protective film are transferred while being attached to the panel 20, and the film adsorbing part 240 adsorbs the front end of the following film unit 10, and the film unit ( It moves integrally with the film unit 10 in the same direction and speed as 10).

Referring to FIG. 4B, the front end of the film unit 10 is adsorbed by the film adsorption part 240, and moves integrally with the film adsorption part 240, so that the peeling part 150 It is located at the end.

4(c) and (d), when the front end of the film unit 10 is located at the end of the peeling unit 150, the film adsorption unit 240 is the film unit 10 After releasing the adsorption, it returns to its original position. In addition, the film adsorption unit 240 adsorbs the subsequent half-cut polarizing film and the front end of the protective film again.

4E, when the film adsorption unit 240 returns to its original position, the shear pattern detection unit 210 advances to detect the pattern at the front end of the film unit 10, and the central pattern The detection unit 230 and the rear end pattern detection unit 220 detect the pattern of the central portion and the first rear end 11b of the film unit, and send the detection result to the control unit.

At this time, in order to move the shear pattern detecting unit 210 to the detection position, the lower mounting roll 162b is lowered so as to be avoided from the movement path of the shear pattern detecting unit 210.

Referring to (f) of FIG. 4, the front end of the half-cut polarizing film 11 and the protective film is located at the end of the peeling part 150 and partially separated from the release film 12.

In addition, the inlet side transfer unit corrects the position of the panel 20 by receiving a correction degree according to the detection result from the control unit. Thereafter, the upper mounting roll 162a of the attachment roller 162 descends, and the lower mounting roll 162b rises to separate portions of the polarizing film 11 and the protective film of the panel 20 By pressing and rotating, the polarizing film 11 and the protective film are attached to the attachment surface of the panel 20. In addition, when the lower mounting roll 162b rises, the shear pattern detecting unit 210 moves backward so as not to interfere with the lower mounting roll 162b to avoid the movement path of the lower mounting roll 162b.

Thereafter, the polarizing film 11 is attached to the attachment surface of the panel 20 while the upper bonding roll 162a and the lower bonding roll 162b rotate. At this time, since the film adsorption unit 240 moves in a state in which the subsequent film unit 10 is adsorbed together with the transfer of the polarizing film 11, the polarizing film 11 in a state attached to the film is It is firmly supported without sagging or changing the conveying direction. Accordingly, the pattern of the polarizing film 11 is prevented from being distorted during the attaching process or the transfer process of the polarizing film 11.

In addition, in the present invention, rather than adjusting the polarizing film 11, which is difficult to adjust the position when the film unit 10 including the polarizing film 11 on which the pattern is formed is transferred due to the wrong direction, By adjusting the position of the panel according to the degree, the polarizing film 11 can be accurately attached to the panel 20.

Claims (10)

In a film attaching system for attaching a film to a panel,
A film supply unit for supplying a film unit including a polarizing film and a release film attached to one surface of the polarizing film;
A film transfer unit disposed in front of the film supply unit based on the transfer direction of the film unit to transfer the film unit supplied from the film supply unit;
A half cutting unit disposed in front of the film transfer unit to cut only the polarizing film among the film units transferred from the film transfer unit;
A film pattern detection unit disposed between the front and rear ends of the half-cut polarizing film so as to be spaced apart from the polarizing film by a predetermined distance, and detecting a pattern of the polarizing film;
A peeling unit separating the release film from the film unit in which a pattern is detected from the film pattern detection unit;
A film adsorbing part disposed between the half-cutting part and the peeling part, adsorbing the polarizing film half-cut from the half-cutting part, and moving integrally with the film unit;
A panel transfer unit for adjusting the position of the panel according to the pattern direction of the film unit detected from the film pattern detection unit, transferring the panel to one end of the peeling unit, and attaching the polarizing film to one surface of the panel;
A film attachment system comprising a release film recovery unit disposed in front of the film peeling unit and recovering the release film separated by the peeling unit.
The method of claim 1,
The film adsorption unit, characterized in that the front end of the peeling unit is located behind a predetermined distance from the front end of the polarizing film to adsorb the polarizing film,
The method of claim 2,
The film adsorption unit, When the film unit is separated from the peeling unit by moving integrally with the film unit to release the adsorption state of the polarizing film.
The method of claim 3,
The film adsorption unit,
When the adsorption state of the polarizing film is released, returning to the position where the polarizing film is adsorbed, and adsorbing the subsequent half-cut polarizing film.
The method of claim 1,
The film pattern detection unit,
A shear pattern detection unit for detecting a front end pattern of the half-cut polarizing film;
A rear end pattern detection unit for detecting a rear end pattern of the half-cut polarizing film; And
A film attachment system comprising a central pattern detection unit for detecting a central pattern of the half-cut polarizing film.
The method of claim 5,
The panel transfer unit,
An entrance side transfer unit for adjusting and transferring the position of the panel such that the pattern direction of the polarizing film detected by the film pattern detection unit and the long side or the short side of the panel are horizontal;
An attachment portion disposed in front of the peeling portion, wherein an upper attachment roll descends and a lower attachment roll rises to press the polarizing film and the panel, thereby attaching the polarizing film to one surface of the panel; And
Containing, a film attachment system for discharging the panel to which the polarizing film is attached to the outside.
The method of claim 6,
The shear pattern detection unit is disposed in the space between the upper and lower rolls, and when the upper and lower rolls press the polarizing film and the panel, the upper or lower roll In order not to interfere with, the shear pattern detection unit, characterized in that the back and forth reciprocating motion, film attachment system.
The method of claim 7,
When the upper roll is lowered and the lower roll is raised, the shear pattern detection unit is retracted, and when the upper roll is raised and the lower roll is lowered, the shear pattern detection unit is advanced. Which, film attaching system.
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