KR100863242B1 - Apparatus For Attaching Polarizer To LCD Panel - Google Patents

Abstract

Disclosed is a polarizer attachment device. The polarizing plate attachment device of the present invention, a supply roller for supplying a new adhesive tape to peel off the protective film from the polarizing plate, the adhesive tape is wound along the circumferential surface; A recovery roller for recovering the waste adhesive tape used for peeling off the protective film; A contact roller which is provided between the supply roller and the recovery roller, and receives the adhesive tape from the supply roller to contact and press the adhesive tape to the surface of the protective film; And it characterized in that it comprises a pressing portion for the contact roller to approach and space the contact roller with respect to the protective film so that the contact roller is pressed by contact with the surface of the protective film. According to the present invention, the protective film can be easily peeled from various kinds of polarizing plates, and in particular, the protective film is easily peeled off even when the protective film is peeled from the polarizing plate for PDP panel, which has a relatively strong adhesive force. By doing so, the loss of process can be prevented.

Protective film, polarizing plate, adhesion, contact roller, pressurization, raising and lowering, adhesive tape

Description

Apparatus For Attaching Polarizer To LCD Panel}

1 is a block diagram of a polarizer attachment device according to an embodiment of the present invention.

2 to 6 are each step by step diagram for the operation of the polarizing plate attachment device shown in FIG.

7 is a configuration diagram conceptually illustrating the angle at which the protective film is peeled with respect to the polarizing plate.

* Explanation of symbols for the main parts of the drawings

P: Polarizer F: Protective Film

T: Adhesive Tape T1: Waste Adhesive Tape

1: device body 2: frame

3: mobile unit 3a: rotating shaft

10: roller support portion 12: feed roller

13: recovery roller 14: contact roller

20: Pressing part for contact roller

The present invention relates to an apparatus for attaching a polarizing plate, and more particularly, a protective film can be easily peeled off from various kinds of polarizing plates, and in particular, a protective film can be removed from a polarizing plate for a PDP panel having a relatively strong adhesive force. In the case of peeling, the present invention relates to a polarizing plate attaching device capable of preventing the loss of process in the process by allowing the protective film to be easily peeled off.

Recently, the flat panel display (FPD) has begun to emerge as the electronic display industry is rapidly developing among the semiconductor industry.

A flat panel display (FPD) is an image display device that is thinner and lighter than a cathode ray tube (CRT), which has been mainly used as a display for a TV or a computer monitor, and includes a liquid crystal display (LCD, liquid). crystal displays), plasma display panels (PDPs), organic light emitting diodes (OLEDs), and the like.

One of such flat display (FPD) thin film transistor (TFT-LCD) liquid crystal displays (TFT-LCDs) injects a liquid crystal, which is an intermediate material between a solid and a liquid, between two thin upper and lower glass substrates. It is a device using a kind of optical switch phenomenon that displays the number or the image by generating the contrast by changing the arrangement of the liquid crystal molecules by the electrode voltage difference of the substrate.

Liquid crystal display (LCD) is replacing the existing cathode ray tube (CRT) at a high speed due to the excellent performance of thin, light weight, low power consumption. Therefore, it is widely used in electronic products such as electronic clocks, electronic calculators, TVs, notebook PCs, speed displays and driving systems of automobiles and aircrafts.

Such liquid crystal display (LCD) is largely released as a product through a TFT process, a cell process, and a module process.

The TFT process is very similar to the semiconductor manufacturing process, in which thin film transistors are arranged on a glass substrate by repeating deposition, photolithography, and etching.

The Cell process forms an alignment layer on the TFT bottom plate manufactured by the TFT process and the top plate which is a color filter so that the liquid crystals can be aligned well. The top and bottom plates are formed by corals and seal printing. It is a process of bonding.

The module process attaches a polarizing plate to the completed LCD panel, mounts an integrated circuit (Drive-IC), assembles it with a PCB (Printed Circuit Board), and then back-lights the unit. Point out a series of steps to assemble the tool.

The polarizing plate used in the module process serves to selectively transmit only light that is strongly attached to both sides of the LCD panel and vibrates in a specific direction among the light transmitted through the liquid crystal.

On the other hand, it is difficult to scratch or foreign matter on the surface of the polarizing plate in the process of transferring the polarizing plate to the LCD panel assembly plant. Therefore, after the polarizer is manufactured, a separate protective film is attached to the polarizer. Of course, when the process of attaching the actual polarizing plate proceeds in a state where the protective film is peeled off.

Initially, the worker peeled off the protective film attached to the polarizing plate by hand. However, due to the limitations of manual work, the production efficiency is inevitably lowered. In recent years, a polarizing plate is attached to the LCD panel after the protective film is peeled off with a means of peeling the protective film using an adhesive tape. A polarizer attachment device has been proposed to allow a series of processes to proceed.

To this end, a conventional polarizing plate attachment device includes a supply roller for supplying a new adhesive tape, a contact roller for contact-pressing the adhesive tape to the surface of the protective film so that the adhesive tape can be adhered to the protective film, and used for peeling the protective film. The recovery roller etc. which collect | recover the waste adhesive tape from which the adhesive force was exhausted are provided. In addition, the supply roller and the recovery roller is provided with driving means for independently driving the supply roller and the recovery roller.

Therefore, when the peeling process of the protective film is started, the supply roller and the recovery roller are driven to rotate, respectively, so that a part of the new adhesive tape released from the supply roller is used for peeling the protective film toward the outer surface of the contact roller. The exhausted waste adhesive tape is able to peel off the protective film from the polarizing plate by repeatedly performing a series of processes to be recovered by the recovery roller for each of the plurality of polarizing plates. After the protective film is peeled off, a process of attaching the polarizing plate to the LCD panel is performed.

On the other hand, there is no shortage of peeling the protective film from the polarizing plate to be attached to the LCD panel by the series of protective film peeling process described above. That is, since the adhesive force of the protective film attached to the polarizing plate for the LCD panel to be attached to the LCD panel is not known to be very high, even if the aforementioned polarizing plate attachment device is used as it is, the peeling of the protective film is less likely to return to failure.

However, the protective film attached to the PDP panel polarizing plate to be attached to the PDP panel is known to be higher than the adhesive force of the protective film attached to the polarizing plate for LCD panel.

Therefore, when the protective film is to be peeled from the PDP panel polarizing plate using the aforementioned polarizing plate attaching device as it is, the protective film may not be peeled off frequently, which may cause a process loss. have.

It is an object of the present invention that the protective film can be easily peeled from various kinds of polarizing plates, and in particular, even in the case of peeling the protective film from the polarizing plate for PDP panel, which has a relatively strong adhesive strength of the protective film, the protective film can be easily peeled off. It is possible to provide a polarizing plate attachment device that can prevent the loss caused in the process by being able to peel.

The object is, according to the present invention, supply a new adhesive tape for peeling off the protective film from the polarizing plate, the supply roller is wound around the circumferential surface; A recovery roller for collecting the waste adhesive tape used for peeling off the protective film; A contact roller provided between the supply roller and the recovery roller, the contact roller receiving the adhesive tape from the supply roller and contacting and pressing the adhesive tape to the surface of the protective film; And it is achieved by a polarizing plate attachment device comprising a pressure roller for contact rollers for approaching and spaced apart the contact roller with respect to the protective film so that the contact roller is in contact pressure on the surface of the protective film.

Here, the control unit for controlling the rotational movement of the recovery roller on the basis of the operation of the pressing portion for the contact roller so that the contact area between the adhesive tape wound on the outer surface of the contact roller and the protective film can be increased. have.

It may further include a feed roller drive unit and a recovery roller drive unit coupled to the supply roller and the recovery roller, respectively, to independently drive the rollers, and the control unit controls the rotational movement of the recovery roller through the recovery roller drive unit. can do.

The control unit may control the operation of the recovery roller drive unit such that the recovery roller is rotated in a reverse direction when the contact roller is contacted and pressed by the protective film by the lowering operation of the contact roller pressing unit.

The control unit may control the operation of the pressurizing portion for the contact roller to raise the contact roller when the recovery roller is rotated in the reverse direction.

It may further include a roller support for supporting the feed roller, the recovery roller and the contact roller, the pressing portion for the contact roller to the roller support in the upper region of the contact roller to raise and lower the contact roller independently Can be combined.

A frame provided on one side of the roller support; And a pressurizing unit, one end of which is coupled to the roller support portion and the other end of which is coupled to the frame to press the roller support portion against the frame so that the contact roller can be contact and pressurized while rotating in one direction with respect to the protective film. can do.

The pressurizing unit may be a tilting pressurizing unit pressurizing the roller support part in a tilted state with respect to the vertical axis.

The roller support portion may further include at least one tension adjusting roller provided between the feed roller, the recovery roller and the contact roller to adjust the tension of the adhesive tape and the waste adhesive tape.

The touch roller may further include a detector for detecting whether the contact roller is in contact with the surface of the protective film and transmitting the detected value to the controller.

The polarizing plate may be a polarizing plate for a plasma display panel (PDP) panel.

An apparatus body for integrally supporting the roller support, the frame and the pressing unit; And it may further comprise a mobile unit for peeling the protective film to the polarizing plate while moving the device body in the plate surface direction of the protective film.

The device body may be provided in pairs, and the mobile unit may peel the protective film while moving the pair of device bodies along the diagonal direction from the edge of the protective film.

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

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a configuration diagram of a polarizing plate attaching device according to an embodiment of the present invention, Figures 2 to 6 are each a step-by-step view for the operation of the polarizing plate attaching device shown in Figure 1, Figure 7 is a polarizing plate It is a block diagram conceptually showing the angle at which the protective film is peeled off.

As shown in these drawings, the polarizer attachment apparatus according to an embodiment of the present invention is a device for peeling the protective film (F, see Fig. 2 to 6) with respect to the polarizing plate (P, see Figs. 2 to 6). As shown in FIG. 7, a moving unit for peeling the protective film F from the polarizing plate P while moving the apparatus main body 1 and the apparatus main body 1 along the plate surface direction of the protective film F ( Not shown).

The polarizing plate P here refers to the polarizing plate P for PDP panels with which the adhesive force of the protective film F is comparatively strong. However, since the scope of the present invention is not limited thereto, the present invention may also be applied when the protective film (not shown) is peeled off from the polarizing plate (not shown) for the LCD panel.

The apparatus body 1 is integrally provided with a roller support 10, a frame 2 and a pressing unit 3, which will be described later. Therefore, the roller support 10, the frame 2 and the pressing unit 3 can be moved together.

One device body 1 may be provided in some cases, but in the present embodiment, two device bodies 1 are applied as shown in FIG. 7. When two device bodies 1 are applied in this way, each device body 1 is disposed in the corner region of the protective film F, and then partially peeled off the protective film F through the contact roller 14. , It moves along the diagonal direction of the protective film (F) by the moving unit shows an operation to peel off the protective film (F). Of course, the scope of the present invention is not limited thereto.

Then, the roller support 10, the frame 2 and the pressing unit 3 provided in the apparatus body 1 will be described in detail.

As shown in Figures 2 to 6, the roller support 10, the supply roller 12, the recovery roller 13 and the contact roller 14 is coupled.

In addition, the roller support part 10 is further provided with a plurality of tension adjusting rollers 15 for adjusting the tension of the adhesive tape T and the waste adhesive tape T1. The tension adjusting roller 15 is provided one each between the supply roller 12 and the contact roller 14 and between the contact roller 14 and the recovery roller 13.

The adhesive tape T is wound around the supply roller 12, the collection roller 13, and the contact roller 14. As shown in FIG. Here, the adhesive tape T which is released from the supply roller 12 and supplied to the contact roller 14 is a new one, while the adhesive tape T facing the recovery roller 13 roll from the contact roller 14 is depleted of adhesive force. Closed adhesive tape T1. Therefore, hereinafter, these (T, T1) will be described separately for each.

The supply roller 12 coupled to one side of the roller support 10 is a portion in which the adhesive tape T, which is not yet used, is wound (wound). Therefore, the new adhesive tape T passes through the contact roller 14 while being unwound through the first feed roller 12 and finally recovered to the recovery roller 13.

For this purpose, the feed roller 12 needs to be rotated independently, and this rotation of the feed roller 12 is the feed roller driver (not shown). That is, the feed roller driver rotates the feed roller 12 in one direction by a control signal of a controller (not shown) to adjust the amount of loosening of the adhesive tape T.

The recovery roller 13 is coupled to the other side of the roller support 10 at a position spaced apart from the supply roller 12. The recovery roller 13 is used for peeling off the protective film F, and the waste adhesive tape T1 whose adhesive force is exhausted is recovered. The recovery roller 13 also rotates the recovery roller 13 in the forward / reverse direction while being operated by a recovery roller driving unit (not shown) controlled by the control unit similarly to the supply roller 12.

As will be described later in detail, the feed roller 12 is rotated in only one direction during the process, but in the case of the recovery roller 13 is rotated in both the forward and reverse directions by the interaction with the contact roller (14). Of course, the feeding roller 12 and the collecting roller 13 may be controlled differently also in the rotational speed and the timing of operation.

The contact roller 14 is provided between the supply roller 12 and the recovery roller 13. Looking in more detail, the contact roller 14 in the roller support 10 is disposed at a position relatively lower than the supply roller 12 and the recovery roller (13). This is because the contact roller 14 is a part which is substantially in contact with the protective film (F).

The contact roller 14 receives the adhesive tape T unwound by a predetermined amount from the supply roller 12 and serves to contact and press the adhesive tape T to the surface of the protective film F when the protective film F is peeled off. do. The contact roller 14 may be freely rotatable in the corresponding position, unlike the supply roller 12 and the recovery roller 13. Therefore, when the adhesive tape T is unwound and supplied from the supply roller 12, the contact roller 14 is rotated in the clockwise direction of FIGS. 2 to 6, whereas the recovery roller 13 is different from the supply roller 12. Otherwise, in the case of rotating in the reverse direction, the contact roller 14 may be rotated in the counterclockwise direction of FIGS. 2 to 6.

On the other hand, in order for the adhesive tape T located on the outer surface of the contact roller 14 to completely contact the protective film F, the adhesive tape T wound around the outer surface of the contact roller 14 by lowering the contact roller 14. ) Should be in contact with the protective film (F). To this end, the contact roller pressing portion 20 is provided.

The contact roller pressurizing portion 20 serves to raise and lower the contact roller 14 with respect to the protective film F so that the contact roller 14 may be pressed against the surface of the protective film F. At this time, the contact roller pressurizing portion 20 raises and lowers only the contact roller 14 independently. That is, during the lifting operation of the contact roller pressurizing portion 20, only the contact roller 14 is moved up and down. Therefore, the contact roller pressurizing portion 20 is provided in the upper region of the contact roller 14 and is independently coupled to the contact roller 14.

At this time, it is necessary to detect whether the contact roller 14 is in contact with the surface of the protective film (F). Therefore, the polarizing plate attachment device of the present embodiment may be further provided with a sensing unit (not shown) for detecting whether the contact roller 14 is in contact with the surface of the protective film (F) and then transmits the detected value to the control unit. .

The pressurizing portion 20 for the contact roller is controlled by the control unit together with the above-described supply roller drive unit and recovery roller drive unit. That is, the control unit operates the recovery roller drive unit such that the recovery roller 13 is rotated in the reverse direction when the contact roller 14 is contacted and pressed by the protective film F by the lowering operation of the contact roller pressurizing unit 20. To control. In addition, the control unit is a contact tape so that the adhesive tape (T) wound on the outer surface of the contact roller 14 can be in contact with the protective film (F) in a relatively large area when the recovery roller 13 is rotated in the reverse direction, that is, contact The contact roller 14 is raised by controlling the operation of the pressing roller 20 for the contact roller so that the contact area between the adhesive tape T wound on the outer surface of the roller 14 and the protective film F is increased.

4 is shown in FIG. 4, in which the contact roller 14 is pressed against the protective film F by the lowering operation of the contact roller pressurizing portion 20, the recovery roller 13 is reversed. When the roller is rotated, the adhesive tape T between the recovery roller 13 and the contact roller 14 is released, and the contact roller 14 is rotated in the reverse direction. At this time, when the contact roller 14 is raised, the amount of the adhesive tape is released. Since the (T) may be adhered to the protective film F, the contact area R1 between the adhesive tape T wound on the outer surface of the contact roller 14 and the protective film F may be increased.

When the contact roller 14 is contact-pressurized with the protective film F as described above, the recovery roller 13 is rotated in the reverse direction to release the adhesive tape T in the area of the contact roller 14 by a predetermined amount. Relative to raise the adhesive tape (T) wound on the outer surface of the contact roller 14 can be adhered to the protective film (F) in a wider area to prevent the initial peeling process of the protective film (F) to fail It can be reduced to the maximum.

On the other hand, in the present embodiment, in order to further increase the contact area between the adhesive tape (T) and the protective film (F) wound on the outer surface of the contact roller 14, the frame (2) and the pressing unit (3) This is further provided.

Referring back to FIG. 1, the frame 2 is provided on one side of the roller support 10. And one end of the pressing unit 3 is coupled to the roller support 10 and the other end is coupled to the frame 2 serves to press the roller support 10 against the frame (2).

The pressurizing unit 3 is a contact tape 14 so that the contact roller 14 can be contact and pressurized while rotating in one direction with respect to the protective film (F), that is, the adhesive tape (T) and the protective film wound on the outer surface of the contact roller ( F) to increase the surface pressure while increasing the contact area between them. In order to enable such an operation, the pressing unit 3 is provided with a tilting pressing unit 3 for pressing the roller support 10 in a tilted state with respect to the vertical axis. At this time, the tilting angle may be about 45 degrees, but the scope of the present invention is not limited thereto. The rotating shaft 3a is provided between the pressurizing unit 3 and the roller support part 10.

An operation with respect to the pressing unit 3 is shown in FIG. 5. When the pressing unit 3 presses the roller support 10 while tilting in the direction B of FIG. 5, the contact roller 14 is moved by a predetermined angle. Since it can rotate in the clockwise direction of FIG. 5, the contact area R2 between the adhesive tape T wound on the outer surface of the contact roller 14 and the protective film F can be further increased. The operation of the pressing unit 3 proceeds after the operation of the contact roller pressing portion 20 is completed.

Thus, through the operation of the contact roller pressurizing portion 20 and the recovery roller 13 and the operation of the pressing unit 3 to be carried out later, the adhesive tape (T) wound on the outer surface of the contact roller 14 and protection The contact areas R1 and R2 between the films F can be made very large, thereby preventing the protective film F from being peeled off.

The operation of the polarizing plate attachment device having such a configuration will be described below with reference to FIGS. 2 to 6.

First, a class process progresses and the polarizing plate P of the protective film F peeling object enters into the polarizing plate attachment apparatus side. When the working position is reached, the polarizing plate P to be peeled off is stopped.

In this state, the apparatus main body 1 descends a predetermined distance in the direction A of FIG. As the apparatus main body 1 descends, the roller support 10, the frame 2, and the pressurizing unit 3 provided in the apparatus main body 1 are lowered together integrally.

Next, as shown in FIG. 3, the contact roller 14 is lowered by the lowering operation of the contact roller pressurizing portion 20 to protect the adhesive tape T wound on the outer surface of the contact roller 14. It is made to adhere to the film (F). At this time, the sensing unit detects whether the contact roller 14 is in contact with the surface of the protective film (F) and transmits the detected value to the control unit.

When the adhesive tape T wound on the outer surface of the contact roller 14 by the lowering operation of the contact roller pressing portion 20 is in contact with the protective film (F), as shown in enlarged in FIG. The adhesive tape T takes the form of point contact between the protective films F substantially.

As described above, when the adhesive tape T wound on the outer surface of the contact roller 14 is in contact with the protective film F, the control unit controls the operation of the recovery roller drive unit as shown in FIG. ) Rotate in the reverse direction. Then, the operation of the contact roller pressurizing portion 20 is controlled again to raise the contact roller 14. When the recovery roller 13 is rotated in the reverse direction, the adhesive tape T as much as loosened on the recovery roller 13 side is stretched. At this time, the rising contact roller 14 rotates in the reverse direction so that the contact roller 14 is rotated. The contact area R1 between the adhesive tape T wound on the outer surface of the protective film F and the protective film F may be increased.

Next, as shown in FIG. 5, the pressing unit 3 is pressed against the frame 2 while pressing in the direction B of FIG. 5 to press the roller support 10. Then, since the contact roller 14 presses the protective film F while rotating in the clockwise direction of FIG. 5 by a predetermined angle, the adhesive tape T wound on the outer surface of the contact roller 14 and the protective film F The contact area R2 can be further increased.

As such, the contact area R1 between the adhesive tape T and the protective film F wound on the outer surface of the contact roller 14 is increased by the operation of the contact roller pressurizing portion 20 and the recovery roller 13. In addition, since the contact area R2 between the adhesive tape T wound on the outer surface of the contact roller 14 and the protective film F is increased by the operation with respect to the pressure unit 3, the adhesive tape T May be adhered to the protective film (F) in a wider area.

In this state, when the apparatus body 1 is raised in the direction C of FIG. 6, the roller support 10, the frame 2, and the pressing unit 3 provided in the apparatus body 1 are raised together integrally, Therefore, a part of the protective film F is initially peeled from the polarizing plate P. FIG. At this time, by moving the device body 1 in the consideration direction (see Fig. 7) of the protective film (F), the protective film (F) can be easily peeled off from the polarizing plate (P) more easily.

As shown in FIG. 6, when a part of the protective film F is initially peeled from the polarizing plate P, a gripper (not illustrated) operates to chuck a part of the area of the protective film F that is initially peeled off. Thereafter, the mobile unit (not shown) operates so that the protective film F can be completely peeled from the polarizing plate P.

Thus, according to this embodiment, the protective film can be easily peeled off from various kinds of polarizing plates, and in particular, the protective film F from the polarizing plate P for PDP panels having a relatively strong adhesive force of the protective film F is relatively strong. Also in the case of peeling), it is possible to prevent the protective film (F) to be easily peeled off to prevent the loss of the process (Loss) generation.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

As described above, according to the present invention, the protective film can be easily peeled off from various kinds of polarizing plates, and in particular, even in the case of peeling the protective film from the polarizing plate for PDP panels having a relatively strong adhesive strength of the protective film. By allowing the film to be easily peeled off, loss of process can be prevented.

Claims (13)

A supply roller for supplying a new adhesive tape to peel off the protective film from the polarizing plate, wherein the adhesive tape is wound along a circumferential surface thereof; A recovery roller for collecting the waste adhesive tape used for peeling off the protective film; A contact roller provided between the supply roller and the recovery roller, the contact roller receiving the adhesive tape from the supply roller and contacting and pressing the adhesive tape to the surface of the protective film; A contact roller pressing portion for approaching and separating the contact roller with respect to the protective film so that the contact roller is in contact with the surface of the protective film; And And a control unit for controlling the rotational movement of the recovery roller based on the operation of the pressing unit for the contact roller so that the contact area between the adhesive tape wound on the outer surface of the contact roller and the protective film can be increased. Polarizer Attachment Device. delete The method of claim 1, It further comprises a feed roller drive unit and recovery roller drive unit coupled to the supply roller and the recovery roller, respectively, to independently drive the rollers. The control unit is a polarizing plate attachment device characterized in that for controlling the rotational movement of the recovery roller through the recovery roller drive unit. The method of claim 3, The control unit is attached to the polarizing plate, characterized in that for controlling the operation of the recovery roller drive unit so that the recovery roller is rotated in the reverse direction when the contact roller is in contact with the protective film by the lowering operation of the contact roller pressing unit. Device. The method of claim 4, wherein And the control unit controls the operation of the pressurizing portion for the contact roller to raise the contact roller when the recovery roller is rotated in the reverse direction. The method of claim 1, Further comprising a roller support for supporting the supply roller, the recovery roller and the contact roller, And the pressurizing portion for the contact roller is coupled to the roller support part in an upper region of the contact roller to independently lift and lower the contact roller. The method of claim 6, A frame provided on one side of the roller support; And The contact roller further includes a pressing unit, one end coupled to the roller support portion and the other end coupled to the frame to press the roller support portion against the frame so that the contact roller can be contact and pressurized while rotating in one direction with respect to the protective film. Polarizer attachment device, characterized in that. The method of claim 7, wherein And the pressing unit is a tilting pressing unit for pressing the roller support in a tilted state with respect to a vertical axis. The method of claim 6, The roller support unit further comprises at least one tension adjusting roller provided between the supply roller, the recovery roller and the contact roller to adjust the tension of the adhesive tape and the waste adhesive tape. The method of claim 1, And a sensing unit for detecting whether the contact roller is in contact with the surface of the protective film and transmitting a detected value to the control unit. The method of claim 1, The polarizing plate is a polarizing plate attachment device, characterized in that the polarizing plate for PDP (Plasma Display Panel) panel. The method of claim 7, wherein An apparatus body for integrally supporting the roller support, the frame and the pressing unit; And And a moving unit which peels the protective film from the polarizing plate while moving the apparatus body in the plate surface direction of the protective film. The method of claim 12, The device body is provided in pairs, The moving unit is a polarizing plate attachment device, characterized in that for removing the protective film while moving the pair of the device body in the diagonal direction from the edge of the protective film.

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