TWI386690B - Protecting film separating head unit and apparatus having the same for attaching polarizer to lcd panel - Google Patents

Description

a protective film separation head unit for attaching a polarizer to an LCD panel and a polarizer attachment device having the same

The present invention relates to a protective film attaching unit and an apparatus having the protective film attaching unit for attaching a polarizing plate to a liquid crystal display (LCD) panel, and more particularly, to a simplified unit structure and a reduced A protective film attaching unit having a ground area and shortening a bonding time, and an apparatus having the protective film attaching unit for attaching a polarizing plate to an LCD panel.

The polarizer is attached to both sides of the LCD panel and selectively transmits only light that is violently vibrated in a specific direction among the light transmitted through the panel. The polarizer is produced at a manufacturing factory by attaching a protective film to both sides of the polarizer. Therefore, at the LCD panel assembly factory, the protective film of the polarizer is removed by a worker manually or by using an adhesive tape before attaching the polarizer to the LCD panel. However, since such manual work reduces productivity, in view of the above problems, a polarizer attachment apparatus has been introduced which can remove a protective film from a polarizer and attach the separated polarizer to the LCD panel without requiring manual work.

Figure 1 illustrates the configuration of a conventional polarizer attachment apparatus. Referring to Fig. 1, a conventional polarizer attachment apparatus includes an independently disposed polarizer attachment portion 7, a polarizer supply portion 2, and a protective film separation portion 1.

The polarizer attaching portion 7 performs a series of steps to directly attach the polarizer with a separate protective film. In the polarizer attaching portion 7, a protective film (not shown) attached to the polarizer is biased by the protective film separating portion 1 The light sheet is separated. The polarizer supply portion 2 supplies a protective film to the polarizer. The polarizer supply portion 2 is provided as a device which is separated from the polarizer attachment portion 7 and separated from the polarizer attachment portion 7 by a predetermined distance L.

The protective film separating portion 1 is moved to the polarizer attaching portion 7, and the protective film attached to the polarizing plate supplied to the polarizing plate attaching portion 7 is separated. The protective film separating portion 1 is provided as a separate device like the polarizing plate supply portion 2, and is separated from the polarizing plate attaching portion 7 by a predetermined distance L so as to be able to approach and retreat from the polarizing plate attaching portion 7.

Although not shown in detail, the protective film separating portion 1 is configured to be able to separate the protective film attached to the polarizing plate from the polarizing plate while moving in one direction with the adhesive tape attached to the protective film. Therefore, the protective film includes a supply roller that supplies the adhesive tape, a collecting roller that collects a belt that depletes the adhesive force after the separation of the protective film, and peripheral components that support the supply roller and the collecting roller. These elements are individually detached and assembled to a main body (not shown) which forms the appearance of the protective film separating portion 1. Therefore, in order to replace the adhesive tape, complicated disassembly and assembly steps are required.

In the operation of the conventional polarizer attachment apparatus configured as above, as shown in FIG. 1, the polarizer supply portion 2 supplies the polarizer having the protective film to the polarizer attachment portion 7(1) by moving the polarizer by a distance L, And then return to the original location (2). Although not shown, the supplied polarizer is fixed in a state of being placed on a polarizer sucking die (not shown) of the polarizer attaching portion 7.

Next, the protective film separating portion 1 at a position different from the position of the polarizer supply portion 2 is independently provided to move the distance L to approach the polarizer Attach part 7 (3). Next, the protective film separating portion 1 is lowered, so that the adhesive tape provided in the protective film separating portion 1 can be bonded to the protective film and raised in one direction when the adhesive tape is bonded to the protective film (4). Since the polarizer is fixed by the polarizer suction mold provided in the polarizer attaching portion 7, when the protective film separating portion 1 moves in the direction (4), the protective film separating portion 1 causes the protective film attached to the polarizer Separation.

When the protective film attached to the polarizer is separated from the polarizer at the working position where the polarizer attaching portion 7 is located, the polarizer attaching portion 7 moves the LCD panel (not shown) so that the polarizer is attached to the LCD panel The surface thus performs the polarizer attachment step. The series of steps are repeated identically for each LCD panel.

However, in the conventional polarizer attachment apparatus, since the protective film separating portion 1 is provided as a device independent of the polarizer supply portion 2, the structure of the device becomes complicated and the floor space is increased. Further, since the protective film separating portion 1 and the polarizing plate supply portion 2 are respectively moved with respect to the polarizing plate attaching portion 7, the moving distance of the protective film separating portion 1 and the polarizing plate supplying portion 2 is additionally increased, so that the bonding time is correspondingly extended.

Further, in the conventional polarizer attachment apparatus, since the supply roller and the collecting roller of the protective film separating portion 1 are separately assembled at a specific position, complicated disassembly and assembly steps are required to replace the adhesive tape. Therefore, the number of work steps is increased and the maintenance and repair time is further extended. In particular, during maintenance and repair time, the operating rate of the apparatus is reduced due to the need to stop a series of steps for attaching the polarizer, resulting in a significant decrease in productivity.

Further, in the polarizer attaching apparatus, since the adhesive tape of the protective film separating portion 1 does not completely form a surface contact due to, for example, an error in mechanical tolerance, the protective film is not smoothly separated from the polarizing plate, so that the protective film is The isolated yield decreased.

In the above polarizer attaching apparatus, the step of actually separating the protective film is performed by a protective film separating head unit (not shown) having an adhesive tape. Therefore, when the polarizer having the protective film is loaded on the working line on which the protective film separating step is performed, the protective film separating head unit approaches the polarizer. When the adhesive tape provided at the protective film separation head unit is attached to the protective film, the protective film can be separated from the polarizer as the protective film separation head unit retreats.

Therefore, the protective film separation head unit includes a supply roller that supplies a new adhesive tape, a contact roller that presses the adhesive tape against the surface of the protective film so that the adhesive tape can be bonded to the protective film, and a waste that collects the adhesive force for separating the protective film. Collection roller for the adhesive tape. A drive unit that drives the supply roller and the collection roller to rotate independently is provided at each of the supply roller and the collection roller.

When the protective film separating step is started, the supply roller and the collecting roller are respectively rotated within a predetermined range. Therefore, a part of the new adhesive tape released from the supply roller faces the outer surface of the contact roller, and the waste adhesive tape which depletes the adhesive force is collected.

In order for the waste adhesive tape to be properly collected by the collecting roller, the release speed of the adhesive tape of the supply roller needs to match the winding speed of the waste adhesive tape of the collecting roller. Otherwise (ie, the release speed does not match the winding speed), the adhesive strip is loosely released along the path connecting the supply roller and the collecting roller. Therefore, the protective film separation step cannot be performed smoothly, so that defects may be generated during the steps.

However, according to conventional techniques, in order to release the adhesive tape of the supply roller The degree matches the winding speed of the waste adhesive tape of the collecting roller, and the synchronous control has been applied to the rotation of the supply roller and the collecting roller. The synchronization control is substantially very difficult and complicated.

In detail, in order to match the release speed between the supply roller and the collecting roller with the winding speed, even if the supply roller and the collecting roller having the same size are used from the beginning, the amount of the adhesive tape wound around the supply roller and the collecting roller It will also change from time to time. That is, the overall diameter of the supply roll around which a large number of new adhesive tapes are wound is initially larger than the overall diameter of the collecting rolls. However, as the protective film separation step proceeds, the overall diameter of the collecting roller around which the waste adhesive tape is wound becomes then larger than the overall diameter of the supply roller. Therefore, in view of the problem, the initial collecting roller rotates faster than the supply roller, and then the collecting roller rotates faster than the supply roller. However, synchronous control is essentially very difficult and complicated. When the synchronous control is performed well, it is difficult to maintain the tension of the adhesive tape on the path connecting the supply roller and the collecting roller constant. Therefore, various process defects may occur, for example, the protective film separation step cannot be performed smoothly.

Also, since a large amount of time is required for the conventional protective film separation step, the bonding time is usually prolonged. That is, although other steps such as attaching the polarizer can be quickly performed, since the time for performing the protective film separation step is increased, the overall bonding time is prolonged and the productivity is lowered.

In order to solve the above and/or other problems, the present invention provides a protective film separation head unit that can couple a portion for separating a protective film to a polarized light The sheet supply portions are moved together so as to simplify the overall structure of the apparatus, thereby reducing the footprint and significantly shortening the bonding time, and the present invention provides a polarizer attachment apparatus having the protective film separation head unit.

The present invention provides a protective film separating head unit which can easily replace an adhesive tape, thereby reducing the number of work steps according to the adhesive tape replacement and shortening the maintenance and repair time, and improving the productivity due to an increase in the operating rate of the device, and The invention provides a polarizer attachment device having the protective film separation head unit.

The present invention provides a protective film separation head unit which can reduce the frequency of separation of a protective film because the adhesive tape provided at the separation portion of the protective film is not bonded to the protective film, so that the separation yield of the protective film can be improved, and The present invention provides a polarizer attachment device having the protective film separation head unit.

The present invention provides a protective film separating head unit which can appropriately collect a waste adhesive tape without performing difficult and complicated synchronous control with respect to rotation of a supply roller and a collecting roller, and provides a separation membrane head unit having the protective film The polarizer is attached to the device.

The present invention provides a polarizer attachment apparatus which can shorten the time for performing the separation step of the protective film, so that the bonding time is shortened and the productivity is improved.

According to an aspect of the invention, a polarizer attaching apparatus includes: a polarizer supply portion that supplies a polarizer attached to at least one surface with a protective film to a predetermined working position of the separation protective film; and a protective film separation head unit coupled It is to one side of the polarizer supply portion, and is movable to the working position together with the polarizer supply portion and separates the protective film from the polarizer.

According to another aspect of the present invention, a protective film separation head unit includes: a unit main body; a supply roller coupled to the unit main body and supplying an adhesive tape; and a collecting roller provided at a position separated from the supply roller and collecting the depleted adhesive And a contact roller provided at an end of the unit body to form a path along which the adhesive tape travels from the supply roller toward the collecting roller, and allows the adhesive tape to contact the protective film, wherein the adhesive tape is mounted on the supply roller, the collecting roller The protective film separation head unit is detachably coupled to the predetermined head unit support portion when it is coupled to the unit body to which the contact roller is coupled.

According to another aspect of the present invention, a protective film separating head unit includes: a supply roller that supplies an adhesive tape to separate a protective film from a polarizing plate, the adhesive tape being wound around a circumferential surface of the supply roller; and a collecting roller for collecting a waste adhesive tape for separating the protective film; a contact roller provided between the supply roller and the collecting roller, receiving the adhesive tape from the supply roller, and contacting and pressing the adhesive tape against the surface of the protective film; and a tension control buffer portion, It is provided on the imaginary path connecting the supply roller and the collecting roller and presses the waste adhesive tape on the basis of the amount of the adhesive tape released from the supply roller to control the tension of the adhesive tape and the waste adhesive tape.

According to another aspect of the present invention, a polarizer attaching apparatus includes: a polarizer supply portion that supplies a polarizer attached to at least one surface with a protective film to a working position of the separation protective film; and a protective film separation head unit coupled To a side of the polarizer supply portion, and capable of moving to the working position together with the polarizer supply portion and separating the protective film from the polarizer at the working position, wherein the protective film separating head unit includes: a supply roller that supplies the adhesive a belt for separating the protective film from the polarizer, the adhesive tape being wound around the supply roller Around the circumferential surface; a collecting roller that collects the waste adhesive tape for separating the protective film; a contact roller provided between the supply roller and the collecting roller, receives the adhesive tape from the supply roller, and contacts and abuts against the protective film The surface presses the adhesive tape; and the tension control buffer portion is provided on the imaginary path connecting the supply roller and the collecting roller and presses the waste adhesive tape on the basis of the amount of the adhesive tape released from the supply roller to control the adhesive tape and the waste adhesive tape tension.

According to another aspect of the present invention, a polarizer attachment apparatus includes: an upright transfer line that transfers a panel in an upright state; a polarizer attachment stage that attaches the polarizer to the panel; and a separation stage that is separately attached to the upper portion of the polarizer a protective film in which the separation stage and the polarizer attachment stage are index type and move a predetermined loop path in which the polarizer loading step, the separation step, and the polarization are performed at respective step positions Sheet attachment step.

The above described features and advantages of the present invention will be more apparent from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. The invention will be described in detail below by explaining preferred embodiments of the invention with reference to the attached drawings. The same reference numerals in the drawings denote the same elements.

FIG. 2 illustrates a configuration of a polarizer attachment apparatus according to an embodiment of the present invention. Fig. 3 is a partially enlarged perspective view of the polarizer attachment device of Fig. 2.

Referring to Figures 2 and 3, the polarizer attachment apparatus according to the present embodiment includes a polarizer attachment portion 70 to which a movable polarizer suction mold 75 is coupled. The polarizer attaching portion 70; and the polarizer supply portion 20, the protective film separating head unit 10 is integrally coupled to the polarizer supplying portion 20. The polarizer attaching portion 70 and the polarizer supply portion 20 are provided on a working wire 50 having a working position 60 at which a protective film F (see FIG. 7) and a polarizer P are applied (please See Figure 7) for separation.

The polarizer attaching portion 70 attaches the polarizer P from which the protective film F is separated to the surface of the LCD panel (not shown). Therefore, the polarizer attaching portion 70 includes a portion for holding the LCD panel, a portion for supporting the polarizer P, and a portion for attaching the polarizer P to the LCD panel. However, since the present embodiment focuses on the step of separating the protective film F from the surface of the polarizer P, the polarizer suction mold 75 supporting the polarizer P in the polarizer attaching portion 70 will be mainly described herein, and will be omitted. Description of the structure of the polarizer attaching portion 70.

The polarizer supply portion 20 supplies the polarizer P to which the protective film F is attached to the working position 60. The polarizer supply portion 20 holding the polarizer P in a vacuum suction manner transfers the polarizer P along the work line 50, for example, to supply the polarizer P to the polarizer suction mold 75 at the working position 60.

The protective film separating head unit 10 is integrally coupled to the polarizing plate supply portion 20, which supplies and collects the adhesive tape T adhered to the protective film F to separate the protective film F. Therefore, when the polarizer supply portion 20 is moved to the working position 60 or returned to the original position, the protective film separating head unit 10 moves together.

In the present embodiment, the polarizer suction mold 75 of the polarizer attaching portion 70 and the polarized light having the protective film separating head unit 10 during the supply of the polarizer P The sheet supply portions 20 are moved toward the working position 60 in a direction approaching each other. The movement of the polarizer suction mold 75 and the polarizer supply portion 20 is controlled by a linear motor (not shown). That is, the linear portion causes the polarizer suction mold 75 and the polarizer supply portion 20 to approach each other toward the working position 60 to supply the polarizer P, and is separated from each other with respect to the working position 60 to separate the protective film F.

In detail, the polarizer supply portion 20 is moved to an intermediate position (0.5 L) between the polarizer attachment portion 70 and the original position of the polarizer supply portion 20, and at the same time as or about the polarizer of the movement of the polarizer supply portion 20. When the supply portion 20 is moved, the polarizer suction mold 75 of the polarizer attaching portion 70 is also moved to the intermediate position. Next, the polarizer supply portion 20 is retracted in the direction toward the original position of the polarizer supply portion 20, so that the protective film separation head unit 10 and the polarizer suction mold are provided in the upper portion of the front surface of the polarizer supply portion 20. The end of the polarizer P at 75 is flush. Next, the polarizer supply portion 20 is moved to its original position (0.5 L) in a state where the protective film separation head unit 10 contacts the protective film F in the upper portion of the polarizer P, and simultaneously with the movement of the polarizer supply portion 20 Or when the polarizer supply portion 20 is moved, the polarizer suction mold 75 is also moved (0.5 L) to its original position, so that the protective film F in the upper portion of the polarizer P can be separated.

Since the protective film separating head unit 10 is not provided as a separate device but integrally coupled to the polarizer supply portion 20 so as to be movable together with the polarizer supply portion 20, the device is simplified as compared with the conventionally provided conventional device. Overall structure and reduced footprint. That is, in relative In the polarizer attaching portion 70 and the polarizer supply portion 20 which are closely separated from each other at the working position 60, the polarizer suction mold 75 of the polarizer attaching portion 70 is separated from the protective film provided at one side of the polarizer supply portion 20. The head unit 10 is close to each other and separated from each other with respect to the working position 60 by the working wire 50 to supply the polarizer P and the separation protective film F, and thus the moving distance can be reduced to 0.5 L as compared with the conventional technique. Therefore, the bonding time can be significantly shortened.

Fig. 3 is a partially enlarged perspective view of the polarizer attachment device of Fig. 2. Figure 4 is an exploded perspective view of a portion A of Figure 3. Fig. 5 is an exploded perspective view illustrating a state in which the adhesive tape of Fig. 4 is removed and viewed from different directions. Figure 6 is a perspective view of a protective film separation head unit to which an adhesive tape is coupled.

As shown in FIGS. 3 to 6, a pair of head unit supporting portions 21 which are separated from each other almost to the width of the polarizing plate P are provided in the upper portion of the front surface of the polarizer supply portion 20. The protective film separating head unit 10 is detachably coupled to each of the head unit supporting portions 21. The protective film separating head unit 10 is coupled to the inner side of each of the head unit supporting portions 21. Therefore, the protective film separating head unit 10 of the head unit supporting portion 21 has a symmetrical structure. The internal structure and operation and functions are the same.

The protective film separation head unit 10 includes a unit main body 11, a supply roller 12, a collecting roller 13, and a contact roller 14. The adhesive tape T is wound around the supply roller 12, the collecting roller 13, and the contact roller 14. Since the protective film separating head unit 10 having the supply roller 12, the collecting roller 13, and the contact roller 14 around which the adhesive tape T is wound is manufactured to be integrally and detachably attached to the head unit supporting portion 21, it is not necessary to pass the complicated Disassembly and assembly steps in the supply roll 12 A new adhesive tape T is mounted thereon and the waste adhesive tape T is removed from the collecting roller 13.

That is, when the use of the protective film separating head unit 10 is completed or repair is required, since the protective film separating head unit 10 and the head unit supporting portion 21 can be easily separated, the protective film separating head unit 10 is protected by new ones. The membrane separation head unit is replaced. Therefore, the number of work steps according to the replacement of the adhesive tape T is significantly reduced as compared with the conventional technique, so that the maintenance and repair time is shortened. Also, since the working time is shortened, the operating speed of the apparatus is increased, so that productivity can be improved as compared with the conventional technique.

The unit main body 11 includes a first plate 11a and a second plate 11b, and the one plate 11a and the second plate 11b are coupled to each other at a predetermined separation interval. A pair of guiding rods 15 guiding the supply roller 12, the collecting roller 13, and the coupling position are coupled to the first plate 11a. Since the coupling member 38 (to be described later) is inserted in the first plate 11a, the first plate 11a has a relatively larger size than the second plate 11b.

The supply roller 12 is coupled to the surface of the first plate 11a, and an adhesive tape T that has not been used is wound around the supply roller 12. Therefore, the new adhesive tape T is initially released from the supply roller 12, passes through the contact roller 14, and is finally collected by the collecting roller 13. For this purpose, the supply roller 12 needs to control the rotation in one direction for a predetermined time. Since the supply roller 12 is coupled to the supply roller motor connecting portion 22 provided inside the head unit supporting portion 21, the supply roller driving motor 32 connected to the supply roller motor connecting portion 22 controls the rotation of the supply roller 12 (please refer to FIG. 3).

The collecting roller 13 is installed at a central portion of the surface of the first plate 11a, and collects the waste adhesive tape which depletes the adhesive force by contacting and separating the protective film F. T. Like the supply roller 12, the collecting roller 13 is connected to the collecting roller motor connecting portion 23 provided inside the head unit supporting portion 21, and therefore, the rotation of the collecting roller 13 is driven by the collecting roller driving motor 33 connected to the collecting roller motor connecting portion 23. Control (see Figure 3). The supply roller 12 and the collecting roller 13 rotate in the same direction at the same speed.

Contact rollers 14 are provided at the ends of the first and second plates 11a and 11b so as to be located at the lowermost end of the protective film separating head unit 10. The contact roller 14 forms a path along which the adhesive tape T travels from the supply roller 12 to the collecting roller 13. The adhesive tape T located at the outer surface of the touch roll 14 contacts the protective film F during the separation of the protective film F.

In order to bring the adhesive tape T located at the outer surface of the touch roll 14 into full surface contact with the protective film F, the protective film separating head unit 10 is lowered and presses the contact roller 14 against the protective film F. Further, the protective film separation head unit 10 needs to be tiltable. Therefore, the contact roller 14 preferably has a cushioning force.

For this purpose, a buffer portion 14a for providing a cushioning force against the contact roller 14 that presses the protective film F is further provided at both ends of the contact roller 14 contacting the first and second plates 11a and 11b (refer to the enlargement of FIG. 4) section). Although any material capable of providing a cushioning force can be used as the cushioning portion 14a, in the present embodiment, the O-ring 14a formed of an elastic material having a specific elastic force is coupled to the contact roller shaft 14b.

For the O-ring 14a formed of an elastic material, when a force lower than a certain amount is applied to the contact roller 14, the contact roller 14 can be accurately positioned along the central axis of the contact roller shaft 14b. However, when a force exceeding the specific amount is applied to the touch roller 14, the O-ring 14a contracts so that the position of the contact roller 14 Move (see Figure 4). The reason why the position of the touch roller 14 is changed by the external force is that when the contact roller 14 and the protective film F are not normally in contact with each other (as shown by the circled portion (a) of FIG. 4), the position of the contact roller 14 is corrected so that the contact roller 14 is touched. The entire surface is in contact with the protective film F (shown as a circled portion (b) of Fig. 4). Therefore, the rate of failure of the separation work is minimized. The structure of the contact roller 14 has a double structure of an outer circumferential portion and a central axis, and an elastic O-ring 14a is inserted in a space between the outer circumferential portion and the central shaft such that the outer circumferential portion has a specific allowable space.

A plurality of spacers 16 are further provided around the contact roller 14, the collecting roller 13, and the supply roller 12. The spacer 16 is provided between the first plate 11a and the second plate 11b. Since both ends of the spacers 16 are fixed to the first and second plates 11a and 11b, the spacers 16 separate the first and second plates 11a and 11b.

Also, the tension is further applied to the adhesive tape T using the spacer 16 to prevent the adhesive tape T wound around the supply roller 12, the contact roller 14, and the collecting roller 13 from sagging. Referring to Fig. 6, the adhesive tape T is wound by being wound by being supported by the spacer 16 in addition to the supply roller 12, the contact roller 14, and the collecting roller 13.

As shown in FIGS. 4 and 5, the coupling member 38 is further used to attach and detach the protective film separating head unit 10 configured as described above with respect to the head unit supporting portion 21. The coupling member 38 includes a shaft portion 38b which is inserted in the slit 18 which is formed by cutting the first plate 11a by a predetermined distance from the outside to the inside; a threaded portion 38a formed in the shaft portion 38b On the outer circumferential surface and spirally coupled to the head unit supporting portion 21 A coupling hub 28 at the center; and a handle operating portion 38d disposed outside the first plate 11a and formed at the end of the shaft portion 38b such that the threaded portion 38a is inserted into the coupling hub 28.

The extended diameter portion 38c having a diameter larger than the shaft portion 38b is further formed around the handle operating portion 38d along the longitudinal direction of the shaft portion 38b. Therefore, when the region between the extended diameter portion 38c and the handle operating portion 38d is inserted in the slit 18, the position of the shaft portion 38b of the coupling member 38 is fixed.

After the shaft portion 38b is inserted in the slot 18, the handle operating portion 38d is rotated outside the first plate 11a such that the threaded portion 38a of the shaft portion 38b is coupled to the coupling hub 28. Therefore, the protective film separating head unit 10 can be easily coupled to the head unit supporting portion 21.

However, in the present embodiment, the coupling position guide 24 that guides the coupling position is further provided. When the protective film separating head unit 10 is coupled to the head unit supporting portion 21, the inconvenience and time of fitting the shaft portion 38b of the coupling member 38 to the coupling hub 28 can be reduced.

The coupling position guide 24 includes a pair of guide rods 15 projecting from the first plate 11a of the protective film separating head unit 10 and a pair of rod insertion portions 25 formed in the head unit supporting portion 21 on the opposite side, the guide rod 15 being inserted In the rod insertion portion 25. A stopper portion 15a that restricts the insertion depth of the guide rod 15 with respect to the rod insertion portion 25 is further formed at each of the guide rods 15.

Therefore, when the protective film separating head unit 10 is coupled to the head unit supporting portion 21, the guide rod 15 formed on the protective film separating head unit 10 is inserted at The rod insertion portion 25 is formed in the head unit supporting portion 21, and then the protective film separating head unit 10 and the head unit supporting portion 21 are coupled using a coupling member 38 which is very convenient to assemble.

In contrast to the present embodiment, the coupling position guide 24 may be formed in the head unit supporting portion 21, and the rod insertion portion 25 may be formed in the protective film separating head unit 10.

As described above, when the adhesive tape T does not adhere to the protective film F, the separation yield of the protective film F is lowered. Therefore, in order to completely bond the adhesive tape T to the protective film F, the protective film separation head unit 10 is pressed against the protective film F, so that the contact roller 14 is completely attached to the protective film F.

In the present embodiment, the inclined portion 30 that inclines the protective film separating head unit 10 with respect to the polarizing plate supply portion 20 by a predetermined angle is further provided, so that the adhesive tape T of the contact roller 14 is completely attached to the protective film F.

7 and 8 illustrate the steps of tilting the protective film separation head unit. Referring to Figures 7 and 8, the inclined portion 30 includes a first bracket 30c coupled to the polarizer supply portion 20, a second bracket 30d coupled to the protective film separating head unit 10, and a connecting portion 30a having one end coupled thereto a first bracket 30c that is pivotable to form a hinge shaft 30b, and the other end is coupled to the second bracket 30d; and an elastic member 30f having two ends coupled to the first bracket 30c and the third bracket 30e, respectively The third bracket 30e is coupled to the protective film separating head unit 10 to return the inclined protective film separating head unit 10 to the original position. The elastic member 30f is a tension spring 30f.

As shown in FIG. 7, a separate actuator (not shown) provided at the polarizer supply portion 20 causes the protective film separation head unit 10 to be attached to the polarizer P. The upper surface of the protective film F is lowered. Therefore, the protective film separating head unit 10 is located above the upper surface of the protective film F. As a step before the separation of the protective film F, the contact roller 14 is moved to the end of the protective film F so that the protective film F can be separated from the end thereof. In this case, the contact roller 14 is lowered to be lower than the end portion of the protective film F, so that the end portion of the protective film F in which the separation operation is started can be suppressed.

At the start of the separation operation, when the contact roller 14 of the protective film separating head unit 10 is moved in the direction indicated by the arrow shown in FIG. 8, the protective film separating head unit 10 is opposed to the first bracket 30c with respect to the hinge shaft 30b. Separate and tilt toward the front side. The inclination causes the contact roller 14 to form a complete surface contact with the end of the protective film F. Even when the complete surface contact is not formed because the contact roller 14 is inclined, the contact roller 14 is further pressed downward, so that the O-ring 14a as the cushioning member provided at both ends of the contact roller 14 is contracted. Therefore, the adhesive tape T forms a complete surface contact with the end of the protective film F.

Figure 9 illustrates a clamp device for a protective film separation head unit. Referring to Figure 9, the clamp 35 is coupled to one side of the protective film separation head unit 10. In the present embodiment, the clamp 35 is provided on the side of the unit main body 11 adjacent to the contact roller 14. Therefore, when the protective film F is attached to the adhesive tape T of the touch roller 14 and the separation of the protective film F is performed, the clamp 35 abuts against the side of the protective film F against the unit main body 11, so that the separated protective film F can be prevented from fleeing Contact roller 14.

The clamp 35 is pivotable about a certain axis of rotation (not shown). That is, the clamp 35 remains separated from the contact roller 14 during the initial stage of the separation operation. When the end of the protective film F is separated from the polarizer P and attached to the touch roller 14, the clamp 35 pivots and presses the protective film F against the contact roller to fix the protective film. F.

When the protective film F is completely separated, the separated protective film F is held by the holding portion 40 (described later). The clamp 35 that has pressed the side of the protective film F against the unit main body 11 returns to the original position, so that the grip portion 40 smoothly grips the protective film F for collection.

Fig. 10 is a perspective view illustrating a state in which a protective film is held. Referring to Figures 3 and 10, a clamping portion 40 is further provided on the working wire 50 to clamp a portion of the separated protective film F such that the completely separated protective film F can be separated from the adhesive tape T of the protective film separating head unit 10.

The clamping portion 40 is provided as a pair separated from each other on the working wire 50 perpendicular to the direction in which the protective film F is separated to sandwich the portion of the separated protective film F. When the holding portion 40 holds the protective film F, the protective film F pulled by being attached to the adhesive tape T is separated from the adhesive tape T and can be removed. As described above, the clamp 35 that presses the side of the protective film F against the unit main body 11 returns to its original position, and the grip portion 40 smoothly grips and collects the protective film F.

The clamping portion 40 includes a clamping body 41 and a first clamping bar 42 and a second clamping bar 43, the first clamping bar 42 and the second clamping bar 43 being coupled to both sides of the clamping body 41 to enable Rotate at least one side to hold the protective film F. Each of the first and second clamping bars 42 and 43 has a curved bar shape "∟" and clamps the protective film F while rotating along the surface of the polarizer P at the clamping body 41. The length of the first clamping bar 42 positioned at the outer side is relatively longer than the length of the second clamping bar 43 to effectively hold the protective film F.

A series of steps of separating the protective film F from the polarizer using the polarizer attachment device configured as above is described below.

11 to 13 illustrate the step of gradually separating the protective film. As shown in Fig. 11, the polarizer supply portion 20 of the polarizer P to which the vacuum adsorption protective film F is attached is located at the initial position (B), and the polarizer suction mold 75 in the polarizer attachment portion 70 is located at the initial position (A).

First, the polarizer supply portion 20 is moved along the line of the working line 50 to the area of the working position 60 indicated by the broken line to supply the polarizer P. The protective film separating head unit 10 located in the upper portion of the polarizer supply portion 20 moves along the working line 50 to the working position 60 together with the polarizer supply portion 20. Simultaneously with or about the movement of the protective film separating head unit 10, the polarizer suction mold 75 in the polarizer attaching portion 70 moves along the line of work 50 to the working position 60 indicated by the broken line. region.

Next, when the polarizer supply portion 20 and the protective film separation head unit 10 are brought close to the working position 60 (as shown in FIG. 12), the vacuum applied to the polarizer P held by the polarizer supply portion 20 is removed, so that The polarizer P is placed on the polarizer suction mold 75 vertically below the polarizer supply portion 20.

Next, when the polarizer suction mold 75 holds the lower surface of the polarizer P by vacuum suction and thus the supplied polarizer P is stably supported by the polarizer suction mold 75, the protective film separating head unit 10 is slightly retracted and moved to the polarized light. The initial position of the sheet supply portion 20 is such that the contact roller 14 of the protective film separating head unit 10 is flush with the end of the polarizing plate P placed on the polarizer suction mold 75.

In a state where the contact roller 14 contacts the protective film F, the protective film separating head unit 10 is further lowered, so that the contact roller 14 forms a complete surface contact with the end of the protective film F. In the present embodiment, the operation is coupled to the inclined portion 30 of the protective film separating head unit 10 (please refer to Fig. 8), or one of the O-rings 14a provided at both ends of the contact roller 14 is contracted. Therefore, the contact roller 14 forms a complete surface contact with the end of the protective film F.

When the adhesive tape T forms a complete surface contact with the protective film F (as shown in FIG. 13), the polarizer suction mold 75 and the polarizer supply portion 20 having the protective film separation head unit 10 are in the opposite direction at the working position 60. Separated towards the original positions (A) and (B). In doing so, the protective film F is gradually separated from the polarizer P. The clamp 35 presses the side of the separated protective film F against the unit main body 11 at the upper end of the contact roller 14. Therefore, the separation step is performed while preventing the protective film F from escaping from the adhesive tape T of the touch roller 14. When the separation of the protective film F is completed, the end of the protective film F is pulled by the contact roller 14 at the opposite side in the contact state.

When the protective film F is taken up adhesively, the protective film separating head unit 10 continues to move to the original position of the polarizing plate supply portion 20 and passes through the upper end of the holding portion 40 (please refer to FIG. 10). During this step, as shown in FIGS. 10 and 13, the nip portion 40 is operated at a certain time interval to sandwich both ends of the protective film F. At the same time, the clamp 35 is moved to the original position. The protective film F held by the grip portion 40 is inhibited from moving at its position. Therefore, the end portion of the protective film F bonded to the contact roller 14 is separated, so that the protective film F depends on the holding portion 40.

When the clamping portion 40 is moved to the original position, the protective film F is due to its It falls onto the protective film collecting portion 80, which is a space provided below the holding portion 40, by its own weight. Since the portion for separating the protective film F is coupled to and moves with the polarizer supply portion 20, the overall structure of the apparatus is simplified, the footprint is reduced, and the bonding time can be remarkably shortened as compared with the conventional technique.

Moreover, since the adhesive tape T is easily replaced by using the protective film separating head unit 10, the number of work steps according to the replacement of the adhesive tape T is reduced, and the maintenance and repair time is shortened. Therefore, the operating rate of the device is increased, so that productivity can be improved as compared with the conventional technology.

Further, by providing the inclined portion 30 and the buffer portion 14a, the frequency at which the adhesive tape T is not attached to the protective film F and thus the protective film F is not separated in the conventional art is reduced, so that the separation yield of the protective film F can be improved. Also, the protective film F taken up by the adhesive tape T to the collecting roller 13 according to a conventional technique is separately collected by the holding portion 40.

In the above embodiment, although the first bracket 30c coupled to the polarizer supply portion 20, the second bracket 30d coupled to the protective film separating head unit 10, the hinge shaft 30b, and the spring 30f are proposed as the inclined portion 30, A hydraulically inclined portion including a hydraulic cylinder may be used as the inclined portion 40.

Further, in the above embodiment, although the pair of holding levers 42 having a "∟" shape by bending a part of the clamping portion 40 are rotated in the direction along the surface of the polarizing plate P, the shape may be a claw shape Or a hook shape such that the clamp bar 42 stands upright or bites in the direction along the surface of the polarizer P.

Figure 14 is a partially enlarged perspective view of a polarizer attachment apparatus in accordance with another embodiment of the present invention. 15 to 17 illustrate the use of the polarizer attachment of Fig. 14. The step of gradually separating the protective film from the device. 18 and 19 illustrate the operation of the tension control buffer portion of the protective film separating head unit of Fig. 14. In the present embodiment, most of the structures are the same as those in the above embodiment. Therefore, in the present embodiment shown in Figs. 14 to 19, the following description will focus only on portions different from those of the above embodiment.

In the above conventional technique, it is very difficult and complicated to synchronously control the speeds of the independently driven supply roller 12 and the collecting roller 13 so that the release speed of the adhesive tape T matches the winding speed of the waste adhesive tape T1. Therefore, when the synchronous control is not properly performed, the adhesive tape T and the waste adhesive tape T1 may be loosely released. In this case, various process defects may be easily generated, for example, separation of the protective film F is not smoothly performed, or the waste adhesive tape T1 is not properly collected by the collecting roller 13.

Therefore, in the present embodiment, in the case where the synchronous control is not performed to match the release speed of the adhesive tape T at the supply roller 12 with the winding speed of the waste adhesive tape T1 at the collecting roller 13, the connection supply roller 12 can be located The tension between the adhesive tape T and the waste adhesive tape T1 at the path of the collecting roller 13 is maintained constant. In the present embodiment, as described below, the tension control buffer portion 90 having a simple structure is used to solve the above problem. The tension control buffer portion 90 is not limited by the structure of the embodiment, and various structures can be employed.

The tension control buffer portion 90 is provided on an imaginary path connecting the supply roller 12 and the collecting roller 13. The tension control buffer portion 90 controls the overall tension of the belts T and T1 by pressing the waste adhesive tape T1 based on the amount of the adhesive tape T released from the supply roller 12 toward the contact roller 14. In other words, the tension control buffer portion 90 reaches the slave supply roller 12 by elastically pressing the waste adhesive tape T1. The overall tension of the belts T and T1 is controlled to the extent that the amount of the adhesive tape T released by the contact roller 14 is.

For this purpose, the tension control buffer portion 90 is provided at a position for elastically pressing the waste adhesive tape T1. In the present embodiment, the tension control buffer portion 90 is provided between the contact roller 14 and the collecting roller 13. The tension control buffer portion 90 includes a main tension roller 91, a movable lever 92, an elastic member 93, and a pair of auxiliary tension bars 95.

The main tension roller 91 contacts the inner surface of the waste adhesive tape T1 that passes between the contact roller 14 and the collecting roller 13. The main tension roller 91 has an approximately cylindrical shape similar to the auxiliary tension bar 95. The movable rod 92 is coupled to the main tension roller 91 and moves together with the main tension roller 91. Therefore, the main tension roller 91 may be coupled to the end surface of the movable rod 92, or the movable rod 92 may be coupled to the side surface of the main tension roller 91.

The elastic member 93 supplies an elastic force to the main tension roller 91 through the movable rod 92, so that the adhesive tape T1 can maintain the tension due to the main tension roller 91. One end of the elastic member 93 is fixed to the support wall 94, and the other end is coupled to the movable rod 92 to elastically bias the main tension roller 91 in one direction to press the waste adhesive tape T1 to the outside. A compression spring can be used as the elastic member 93.

For reference only, when the interval between the contact roller 14 and the collecting roller 13 is narrow or the amount of the adhesive tape T released from the supply roller 12 is small, only one tension control buffer portion 90 is required. However, when the amount of the adhesive tape T released from the supply roller 12 is large, it is necessary to increase the expansion force of the elastic member 93. Also, it is necessary to increase the moving distance of the movable lever 92 and the main tension roller 91. In this situation In the case where a tension control buffer portion 90 is difficult to perform a smooth operation.

Therefore, in the present embodiment, in consideration of the above problem, two tension control buffer portions 90 which are separated from each other are provided between the contact roller 14 and the collecting roller 13. By providing the two tension control buffer portions 90, the expansion force of the elastic member 93 is reduced, and the moving distance of the movable rod 92 and the main tension roller 91 can be maintained short. The number of the tension control buffer portions 90 may be three or more if necessary.

When two tension control buffer portions 90 are provided as in the present embodiment, it is preferable to use one elastic member 93 to control the movement of each of the main tension rollers 91. Therefore, the number of parts can be reduced. For this purpose, in the present embodiment, the movable rods 92 provided at the two tension control buffer portions 90 are connected to each other by the joint portion 96, and the single elastic member 93 controls the movement of each of the main tension rollers 91. However, since the present invention is not limited thereto, the elastic member 93 is provided at each of the tension control buffer portions 90 so that an individual operation can be performed.

The auxiliary tension rollers 95 are disposed on both sides of the main tension roller 91, and form a moving path in which the waste adhesive tape T1 travels toward the main tension roller 91. Further, the auxiliary tension roller 95 uses the main tension roller 91 to maintain the tension of the waste adhesive tape T1. The auxiliary tension roller 95 contacts the outer surface of the waste adhesive tape T1 that passes between the contact roller 14 and the collecting roller 13. Therefore, from the viewpoint of the waste adhesive tape T1, the waste adhesive tape T1 passes through the outer surface of the main tension roller 91 which is in contact with the inner surface of any of the auxiliary tension rollers 95, and then contacts the inner surface of the auxiliary tension roller 95.

When the main tension roller 91 and the movable lever 91 are coupled to the movable rod 92 The auxiliary tension roller 95 is directly fixed to the unit main body 11 when moving together. If necessary, the auxiliary tension roller 95 can be excluded from the structure. The operation of the tension control buffer portion 90 in the protective film separating unit 10a configured as above will be described below with reference to Figs.

First, in order to perform separation of the protective film F, a new adhesive tape T is disposed to the outer surface of the touch roller 14. For this purpose, the supply roller drive motor 32 is operated to rotate the supply roller 12 in one direction. Next, a specific amount of the adhesive tape T wound around the outer surface of the supply roller 12 is released. The collecting roller drive motor 33 is not operated.

When the specific amount of the adhesive tape T is released from the supply roller 12, the tension formed at the belts T and T1 is weakened. Therefore, the elastic member 93 that elastically presses the waste adhesive tape T1 by the main tension roller 91 expands.

The degree of expansion of the elastic member 93 is as large as the amount of the adhesive tape T released from the supply roller 12 toward the contact roller 14. That is, as the elastic member 93 expands to the same extent as the adhesive tape T released from the supply roller 12, the elastic member 93 pushes the main tension roller 91 through the movable lever 92. Therefore, the main tension roller 91 presses the adhesive tape T1 outward, so that even when the adhesive tape T is released from the supply roller 12, the tension formed at the belts T and T1 does not weaken, so that a constant tension state is always maintained.

Next, when the adhesive tape T is released from the supply roller 12 and the new adhesive tape T is disposed on the outer surface of the touch roller 14, the operation of the supply roller drive motor 32 is stopped, and the rotation of the supply roller 12 is stopped. When the rotation of the supply roller 12 is stopped, the collecting roller drive motor 33 is driven to forcibly rotate the collecting roller 13 in one direction. The collecting roller drive motor 33 is forcibly rotated and collected in one direction The roller 13 overcomes the elastic force of the elastic member 93 whose torque is relatively larger than the elastic expansion force of the elastic member 93.

When the collecting roller 13 is rotated by the collecting roller drive motor 33, the elastic member 93 is compressed due to the rotational torque, so that the movable lever 92 and the main tension roller 91 are pushed rearward. By this step, the waste adhesive tape T1 supported by the main tension roller 91 and the auxiliary tension roller 95 is wound around the collecting roller 13.

When the winding is completed, since the main tension roller 91 presses the waste adhesive tape T1 outward, even when the collecting roller 13 is wound around a certain amount of the waste adhesive tape T1, the tension is not weakened, and the tension state can be maintained at all times. In the present embodiment, when the main tension roller 91 is finally returned to the home position, the operation of the collecting roller drive motor 33 is stopped, and the rotation of the collecting roller 13 is stopped.

When the new adhesive tape T is released from the supply roller 12 and supplied to the outer surface of the touch roller 14, the waste adhesive tape T1 as much as the supply amount is completely collected by the collecting roller 13, and then the separation of the protective film F is performed. Next, the supply roller drive motor 32 is operated again to rotate the supply roller 12 in one direction, and the above steps are repeated.

According to the present embodiment, in the case where the synchronous control is not performed with respect to the rotation of the supply roller 12 and the collecting roller 13, the adhesive tape T can be supplied to the contact roller 14 and the adhesive tape T1 can be collected from the contact roller 14, and at the same time, the connection is made The tension of the adhesive tapes T and T1 on the path of the supply roller 12 and the collecting roller 13 is maintained constant. Therefore, various process defects caused by not maintaining the tension of the adhesive tapes T and T1 constant can be prevented (for example, separation of the protective film F is not smoothly performed, or the waste adhesive tape T1 is not properly collected by the collecting roller 13).

In the above embodiment, although the elastic member is applied to the tension control The punching portion, but if the tension roller driving motor coupled to the main tension roller and driving the main tension roller can press the waste adhesive tape to the extent of the amount of the adhesive tape released from the supply roller, this case can be applied thereto.

Figure 20 illustrates a layout of a polarizer attachment apparatus according to still another embodiment of the present invention. Referring to FIG. 20, the polarizer attachment apparatus according to the present embodiment includes an upright transfer line 110, a polarizer attachment stage 130, and a separation stage 120. The upright transfer line 110 includes a supply line 112 that supplies the LCD panel L to the polarizer attachment stage 130 and a discharge line 114 that discharges the panel on which the polarizer attachment task has been completed.

In the present embodiment, the polarizer attachment stage 130 and the separation stage 120 are provided as a marker type in which steps are performed while moving a certain path. That is, the polarizer attachment stage 130 and the separation stage 120 are integrally provided to form a single polarizer attachment means. The four polarizer attachment devices are arranged to separate a constant spacing on the plate 140. Each step is performed when the plate 140 is rotated at a constant speed.

The step includes a polarizer loading step for supplying the polarizer P to the polarizer attaching means, a protective film separating step for separating the protective film F (see FIG. 7) from the positioned polarizer P, and The polarizer P to which the protective film is attached when the protective film F is separated is attached to the polarizer attaching step of the LCD panel L. Thus, as the plate 140 rotates, each of the polarizer attachment devices moves to a disengaged position to continue the steps.

Instead of providing four separation stages, only one separation stage 120 is provided at the separation position where separation is performed, as shown in FIG. Therefore, the protective film F can be attached to the polarizer attached to the polarizer attachment stage 130 moved to the separated position. P separation. In this case, since only one separation stage is sufficient, the device structure is simplified. Also, since the portion for rotation becomes smaller, the weight of the mark is small.

At the same time, efficient operation of the device can be obtained by idling any of the various step positions. A slider 134 is provided at the polarizer attachment stage 130 to continuously hold the rear end of the polarizer P by a whip force during the step of attaching the polarizer P to the LCD panel L so that the polarizer P is maintained while maintaining a specific tension Attached to the LCD panel L to prevent the generation of air bubbles.

Also, the polarizer attachment stage 130 preferably has an inclined structure capable of bringing the end of the polarizer P attached thereto to the LCD panel L during the polarizer attaching step. That is, the polarizer attachment stage 130 maintains the level state during the loading step and the separation step, and is inclined during the polarizer attaching step such that one end thereof faces the panel.

According to the embodiment shown in Fig. 20, the bonding time is shortened by shortening the time for performing the step of separating the protective film F, so that the productivity can be improved.

While the present invention has been particularly shown and described with reference to the preferred embodiments of the embodiments of the invention Make various changes in the details.

As described above, according to the present invention, since the portion for separating the protective film can be moved by being coupled to the polarizer supply portion, the device structure is simplified, the footprint is reduced, and the ratio can be significantly shortened as compared with the conventional technique. Bonding time.

Moreover, since the adhesive tape can be easily replaced, the adhesive is reduced. The number of work steps performed by the replacement is shortened, and the maintenance and repair time is shortened, so that the operation rate of the device is increased and the productivity can be improved as compared with the conventional technology. Further, the separation yield of the protective film can be improved by reducing the frequency at which the protective film is not separated because the adhesive tape is not attached to the protective film.

In addition, the waste adhesive tape can be appropriately collected without performing difficult and complicated synchronization control with respect to the rotation of the supply roller and the collecting roller. Therefore, various process defects caused by not maintaining the tension of the adhesive tape constant can be prevented (for example, separation of the protective film is not smoothly performed, or the waste adhesive tape is not properly collected by the collecting roller). Also, by shortening the time for performing the protective film separation step, the bonding time is shortened, so that productivity can be improved. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

10‧‧‧Protective membrane separation head unit

11‧‧‧Unit body

11a‧‧‧ first board

11b‧‧‧ second board

12‧‧‧Supply roller

13‧‧‧Collection roller

14‧‧‧Contact roller

14a‧‧‧buffer section (O-ring)

14b‧‧‧Contact roller shaft

15‧‧‧ Guide rod

15a‧‧‧stops

16‧‧‧ spacers

18‧‧‧ slotting

20‧‧‧ polarizer supply part

21‧‧‧ head unit support

22‧‧‧Supply roller motor connection

23‧‧‧Collection roller motor connection

24‧‧‧Coupling position guide

25‧‧‧ rod insertion section

28‧‧‧ coupling hub

30‧‧‧Sloping part

30a‧‧‧Connected section

30b‧‧‧Hinged shaft

30c‧‧‧First bracket

30d‧‧‧second bracket

30e‧‧‧third bracket

30f‧‧‧Flexible parts

32‧‧‧Supply roller drive motor

33‧‧‧Collection roller drive motor

35‧‧‧ clamp

38‧‧‧Coupling parts

38a‧‧ threaded part

38b‧‧‧Axis section

38c‧‧‧Extended diameter section

38d‧‧‧Handle operation section

40‧‧‧Clamping section

41‧‧‧Clamping body

42‧‧‧First clamping rod

43‧‧‧Second clamping rod

50‧‧‧Working line

60‧‧‧Working position

70‧‧‧ polarizer attachment part

75‧‧‧ polarizer suction mold

80‧‧‧ Protective film collection part

90‧‧‧Tensile control buffer section

91‧‧‧Main tension roller

92‧‧‧ movable rod

93‧‧‧Flexible parts

94‧‧‧Support wall

95‧‧‧Assisted tension rod

96‧‧‧Connected section

110‧‧‧Upright transfer line

112‧‧‧ supply line

114‧‧‧Drainage line

120‧‧‧ separation table

130‧‧‧Polarizer attachment table

134‧‧‧ Skateboarding

140‧‧‧ board

T‧‧‧ adhesive tape

T1‧‧‧Discarded adhesive tape

P‧‧‧ polarizer

L‧‧‧LCD panel

F‧‧‧Protective film

Figure 1 illustrates the configuration of a conventional polarizer attachment apparatus.

FIG. 2 illustrates a configuration of a polarizer attachment apparatus according to an embodiment of the present invention.

Fig. 3 is a partially enlarged perspective view of the polarizer attachment device of Fig. 2.

Figure 4 is an exploded perspective view of a portion A of Figure 3.

Fig. 5 is an exploded perspective view illustrating a state in which the adhesive tape of Fig. 4 is removed and viewed from different directions.

Figure 6 is a perspective view of a protective film separation head unit to which an adhesive tape is coupled.

7 and 8 illustrate the steps of tilting the protective film separation head unit.

Figure 9 illustrates a clamp device for a protective film separation head unit.

Fig. 10 is a perspective view illustrating a state in which a protective film is held.

11 to 13 illustrate the step of gradually separating the protective film.

Figure 14 is a partially enlarged perspective view of a polarizer attachment apparatus in accordance with another embodiment of the present invention.

15 to 17 illustrate the step of gradually separating the protective film using the polarizer attachment device of Fig. 14.

18 and 19 illustrate the operation of the tension control buffer portion of the protective film separating head unit of Fig. 14.

Figure 20 illustrates a layout of a polarizer attachment apparatus according to still another embodiment of the present invention.

10‧‧‧Protective membrane separation head unit

20‧‧‧ polarizer supply part

21‧‧‧ head unit support

32‧‧‧Supply roller drive motor

33‧‧‧Collection roller drive motor

40‧‧‧Clamping section

41‧‧‧Clamping body

42‧‧‧First clamping rod

43‧‧‧Second clamping rod

50‧‧‧Working line

Claims (47)

A polarizer attaching apparatus comprising: a polarizer supply portion that supplies a polarizer having a protective film attached to at least one surface to a predetermined working position for separating the protective film; and a protective film separating head unit coupled To a side of the polarizer supply portion, and capable of moving to the working position together with the polarizer supply portion and separating the protective film from the polarizer; and a polarizer attachment portion, The polarizer from which the protective film is separated is attached to the surface of an LCD panel. The polarizer attachment apparatus according to claim 1, wherein the protective film separation head unit supplies and collects an adhesive tape attached to the protective film to separate the protective film, and the protective film is separated. The polarizer supply portion coupled to the head unit and a polarizer suction mold are disposed at opposite sides with respect to the working position on a predetermined working line and are capable of approaching and separating from each other with respect to the working position. The polarizer attachment apparatus according to claim 2, wherein a head unit supporting portion is provided in an upper portion of a front surface of the polarizer supply portion, and the protective film separating head unit is integral and detachable The ground unit is coupled to the head unit support portion. The polarizer attachment device of claim 3, wherein the protective film separation head unit comprises: a unit body having a first plate and a second plate coupled to each other at a predetermined interval; a supply roller Any of its coupling to the first plate and the second plate Surface and supplying the adhesive tape; a collecting roller provided at a position separated from the supply roller and collecting an adhesive tape depleting the adhesive force; and a contact roller provided at each of the first plate and the At the end of the second plate, a path is formed in which the adhesive tape travels from the supply roller toward the collecting roller, and the adhesive tape is allowed to contact the protective film. The polarizer attachment apparatus of claim 4, further comprising: a coupling component coupled to the unit body and integrally coupling the protective film separation head unit to the head unit Support part. The polarizer attachment device of claim 5, wherein the coupling member comprises: a shaft portion coupled to the unit body; a threaded portion formed on an outer surface of the shaft portion, and a helical coupling to a coupling hub provided at the head unit support portion; and a handle operating portion disposed outside the unit body and formed at an end of the shaft portion such that the threaded portion is inserted in the Coupling in the hub. The polarizer attachment device of claim 6, wherein the shaft portion of the coupling member is inserted in a slot, the slot is from the first board and the second board The outer surface of one is cut inward to a predetermined length. The polarizer attachment device of claim 4, further comprising: a coupling position guide, the coupling position guide Provided at the protective film separating head unit and the head unit supporting portion, and guiding the coupling position when the protective film separating head unit is coupled to the head unit supporting portion. The polarizer attachment device of claim 8, wherein the coupling position guide comprises: a guiding rod from one of the protective film separating head unit and the head unit supporting portion to another One of the protrusions; and a rod insertion portion formed on one of the protective film separation head unit and the head unit support portion, the guide rod being inserted in the rod insertion portion. The polarizer attachment device of claim 9, wherein a stopper that restricts an insertion depth of the guide rod in the rod insertion portion is further formed at the guide rod. The polarizer attachment apparatus of claim 4, further comprising: a sloped portion that tilts the protective film separation head unit by a predetermined angle with respect to the polarizer supply portion such that the orientation The protective film presses the contact roller to completely adhere the adhesive tape to the protective film. The polarizer attachment device of claim 11, wherein the inclined portion comprises: a first bracket coupled to the polarizer supply portion; and a second bracket coupled to the protection a membrane separation head unit; a connecting portion connecting the first bracket and the second bracket; a hinge pin hingedly coupled to the first through the connecting portion a bracket; and an elastic member coupled to the first bracket and a third bracket coupled to the protective film separating head unit, respectively, and returning the inclined protective film separating head unit to Original location. The polarizer attachment device of claim 4, further comprising: a buffer portion provided at both ends of the contact roller contacting the first plate and the second plate And adding a damping force to the contact roller pressed by the protective film. The polarizer attachment device of claim 13, wherein the buffer portion is an O-ring formed of an elastic member. The polarizer attachment apparatus of claim 4, further comprising: a clamp coupled to one side of the unit body and preventing the protective film during separation of the protective film Escape the adhesive tape. The polarizer attachment device of claim 2, wherein a clamping portion that holds a portion of the separation protective film is further provided on the working line to allow the separated protective film to be The adhesive tape of the protective film separation head unit is separated. The polarizer attachment apparatus of claim 16, wherein the clamping portion is provided as a pair separated from each other and arranged in a direction perpendicular to the working line in a direction separating the protective films . The polarizer attachment device of claim 17, wherein the clamping portion comprises: a clamping body; A pair of clamping bars coupled to both sides of the clamping body and capable of rotating and clamping the protective film in at least one direction. The polarizer attachment device of claim 18, wherein each of the clamping bars is partially curved and has a "∟" shape and is in a direction along a surface of the polarizer The clamping body rotates to clamp the protective film. The polarizer attachment device of claim 19, wherein one of the clamping bars at an outer side of the working line is relatively longer than the other clamping bar. A protective film separating head unit comprising: a unit body; a supply roller coupled to the unit body and supplying an adhesive tape; a collecting roller provided at a position separated from the supply roller and collecting the a depleted adhesive tape; and a contact roller provided at an end of the unit body to form a path for the adhesive tape to travel from the supply roller toward the collecting roller and to allow the adhesive tape to contact The protective film, wherein the protective film separating head unit is detachably coupled to a predetermined one when the adhesive tape is mounted on the unit body to which the supply roller, the collecting roller, and the contact roller are coupled Head unit support section. The protective film separating head unit according to claim 21, wherein the unit main body includes: a first plate and a second plate coupled to each other at a predetermined interval, the supply roller being coupled to the first a plate and any surface of the second plate, and the contact roller is provided on the first plate and At the end of the second plate. The protective film separating head unit according to claim 22, further comprising: a coupling member coupled to the unit body and integrally coupling the protective film separating head unit to the head Unit support section. The protective film separation head unit according to claim 23, wherein the coupling member comprises: a shaft portion coupled to the unit body; and a threaded portion formed on an outer surface of the shaft portion, And helically coupled to a coupling hub provided at the head unit support portion; and a handle operating portion disposed outside the unit body and formed at an end of the shaft portion such that the threaded portion is inserted therein Said in the coupling hub. The protective film separating head unit according to claim 24, wherein the shaft portion of the coupling member is inserted in a slit, the slit being from the first plate and the second plate The outer surface of either is cut inward to a predetermined length. The protective film separating head unit according to claim 22, further comprising: a coupling position guide provided at the protective film separating head unit and the head unit supporting portion, And guiding the coupling position when the protective film separation head unit is coupled to the head unit support portion. The protective film separation head unit of claim 26, wherein the coupling position guide comprises: a guide rod protruding from the one of the protective film separating head unit and the head unit supporting portion to the other; and a rod insertion portion formed in the protective film separating head unit and the head On one of the unit support portions, the guide rod is inserted in the rod insertion portion. The protective film separation head unit according to claim 27, wherein a stopper that restricts an insertion depth of the guide rod in the rod insertion portion is further formed at the guide rod. The protective film separating head unit according to claim 22, further comprising: an inclined portion that tilts the protective film separating head unit by a predetermined angle with respect to a polarizing plate supply portion such that the orientation is The protective film presses the contact roller to completely adhere the adhesive tape to the protective film. The protective film separation head unit of claim 29, wherein the inclined portion comprises: a first bracket coupled to the polarizer supply portion; and a second bracket coupled to the a protective film separating head unit; a connecting portion connecting the first bracket and the second bracket; a hinge pin hingedly coupled to the first bracket by the connecting portion; and an elastic A member having two ends coupled to the first bracket and a third bracket coupled to the protective film separating head unit, respectively, and returning the inclined protective film separating head unit to an original position. Protective film separation head sheet as described in claim 22 And further comprising: a buffer portion provided at both ends of the contact roller contacting the first plate and the second plate, and contacting the contact pressed by the protective film The roller increases the cushioning force. The protective film separation head unit according to claim 31, wherein the buffer portion is an O-ring formed of an elastic member. The protective film separation head unit of claim 22, further comprising: a clamp coupled to one side of the unit body and preventing the protection during separation of the protective film The membrane escapes from the adhesive strip. A protective film separation head unit comprising: a supply roller that supplies an adhesive tape to separate a protective film from a polarizer, the adhesive tape being wound around a circumferential surface of the supply roller; and a collecting roller Collecting a waste adhesive tape for separating the protective film; a contact roller provided between the supply roller and the collecting roller, receiving the adhesive tape from the supply roller, and contacting and abutting against The surface of the protective film presses the adhesive tape; and a force control buffer portion provided on a path connecting the supply roller and the collecting roller, and based on the adhesive tape released from the supply roller The waste adhesive tape is pressed to control the tension of the adhesive tape and the waste adhesive tape. The protective film separating head unit according to claim 34, wherein the tension control buffer portion is provided between the contact roller and the collecting roller. The protective film separation head unit according to claim 35, wherein the tension control buffer portion includes: a main tension roller that contacts the waste traveling between the contact roller and the collection roller a surface of the adhesive tape; a movable rod coupled to the primary tension roller and moving together with the primary tension roller; and an elastic member coupled to the movable rod and resiliently biased to allow the claim The force roller presses the waste adhesive tape. The protective film separating head unit according to claim 36, wherein the main tension roller contacts an inner surface of the waste adhesive tape, and the elastic member is a compression spring and is elastically biased to be pressed outward. Described adhesive tape. The protective film separation head unit according to claim 37, wherein the tension control buffer portion further comprises: a pair of auxiliary tension rollers disposed on both sides of the main tension roller to form a The moving path of the waste adhesive tape toward the main tension roller is described, and the tension of the waste adhesive tape is maintained by the main tension roller. The protective film separating head unit according to claim 36, wherein a plurality of the tension control buffer portions are provided, and the respective movable rods of the tension control buffer portion are connected by a connecting portion, and The tension control buffer portion shares a single elastic member. The protective film separating head unit of claim 34, wherein the tension control buffer portion comprises: a main tension roller contacting between the contact roller and the collecting roller An inner surface of the discarded adhesive tape; and a force roller drive motor coupled to the primary tension roller to move the primary tension roller and based on the amount of the adhesive tape released from the supply roller Press the waste adhesive tape. The protective film separation head unit according to claim 34, wherein the tension control buffer portion elastically presses the waste adhesive tape like the amount of the adhesive tape released from the supply roller, and elastically presses The pressing force of the waste adhesive tape is substantially the same as the preset tension of the adhesive tape and the waste adhesive tape. A polarizer attachment device comprising: a polarizer supply portion that supplies a polarizer having a protective film attached to at least one surface to a working position separating the protective film; and a protective film separation head unit coupled To one side of the polarizer supply portion, and is movable together with the polarizer supply portion to the working position and separating the protective film from the polarizer at the working position, wherein the protection The membrane separation head unit includes: a supply roller that supplies an adhesive tape to separate the protective film from the polarizer, the adhesive tape is wound around a circumferential surface of the supply roller; and a collecting roller that collects for a waste adhesive tape separating the protective film; a contact roller provided between the supply roller and the collecting roller, receiving the adhesive tape from the supply roller, and contacting and abutting against the protection Pressing the adhesive tape on the surface of the film; a tension control buffer portion provided on a path connecting the supply roller and the collecting roller, and pressing the waste adhesive tape to control the bonding based on an amount of the adhesive tape released from the supply roller The tension of the belt and the waste adhesive tape. The polarizer attachment device of claim 42, wherein the tension control buffer portion is provided between the contact roller and the collection roller. The polarizer attachment device of claim 43, wherein the tension control buffer portion comprises: a main tension roller contacting the waste bonding between the contact roller and the collection roller a surface of the belt; a movable rod coupled to the main tension roller and moving together with the primary tension roller; and an elastic member coupled to the movable rod and resiliently biased to allow the primary tension The roller presses the waste adhesive tape. The polarizer attachment device of claim 44, wherein the tension control buffer portion further comprises: a pair of auxiliary tension rollers disposed on both sides of the main tension roller to form a The moving path of the waste adhesive tape toward the main tension roller is described, and the tension of the waste adhesive tape is maintained by the main tension roller. The polarizer attachment device of claim 45, wherein a plurality of the tension control buffer portions are provided, the respective movable rods of the tension control buffer portion are connected by a connection portion, and the tension The control buffer portion shares a single elastic member. The polarizer attachment device of claim 42, wherein a unit support portion detachably coupled to the protective film separation head unit is provided in an upper portion of a front surface of the polarizer supply portion, and a polarizer suction mold that adsorbs the polarizer and the polarizer supply portion coupled to the protective film separation head unit are disposed on both sides of the working position, and are capable of approaching each other and each other with respect to the working position Separation.