KR20000038517A - Apparatus for implementing deflection plate for liquid crystal panel and method for implementing deflection plate using the same - Google Patents

Abstract

PURPOSE: An apparatus for implementing a deflection plate for a liquid crystal panel and a method for implementing the deflection plate using the same are provided to perform reworking automatically. CONSTITUTION: An apparatus for implementing a deflection plate for a liquid crystal panel includes a support press(10), a deflection plate preservation membrane separator(12), and a support conveyor(14). The support press(10) supports the deflection plate and presses the deflection plate as rotating with respect to one rotation axis. The deflection plate preservation membrane separator(12) separates the preservation membrane applied on the deflection plate pressed on the support press. The support conveyor(14) is implemented near from the support press and supports LCD modules and a driving circuit for the LCD modules. The support conveyor moves in a predetermined direction. The deflection plate is applied on the surface of the LCD panel while sliding from the deflection plate support press.

Description

Polarizer Attaching Device for Liquid Crystal Display and Polarizing Plate Attaching Method Using The Same

The present invention relates to a polarizing plate attaching device for a liquid crystal display device and a polarizing plate attaching method using the same, and more particularly, to a liquid crystal display which automatically removes the protective film attached to the polarizing plate and then automatically attaches the polarizing plate to the surface of the LCD panel. The present invention relates to a polarizer attachment device for a device and a polarizer attachment method using the same.

Recently, as the modern society becomes information socialized, the importance of the liquid crystal display device, which is one of the information display devices, is gradually increasing. In particular, the liquid crystal display device has been improved due to its advantages such as miniaturization, light weight, and low power consumption. As an alternative means of overcoming the shortcomings of the CRT (Cathode Ray Tube), its use area is gradually expanding.

In general, a liquid crystal display device includes an LCD panel in which a color filter substrate and a TFT substrate are sequentially stacked via liquid crystal, and a TFT (Tape Carrier Package) having a semiconductor chip mounted on the TFT substrate is the same as an anisotropic conductive film (ACF). It is attached through the adhesive member to electrically connect the PCB (Printed Circuit Board) and the TFT substrate.

A polarizing plate is generally attached to the front and rear surfaces of the LCD panel, and the polarizing plate selectively transmits only the light oscillating in a specific direction among the light transmitted through the liquid crystal to the outside, thereby providing the information display function granted to the liquid crystal display itself. To help perform well.

The process of attaching such a polarizing plate usually takes the final position in the overall manufacturing process of the liquid crystal display device, and the LCD panel to which the polarizing plate is attached is manufactured and completed in an LCD module unit having a good function. Here, the LCD module refers to a unit set in a state where the LCD panel and the PCB are electrically connected by TCP.

After completing the polarizing plate attachment process, the polarizer of the product manufactured by the LCD module is often subjected to a predetermined defect, for example, surface scratching, adhesion of external foreign matter, detachment of the polarizing plate, and the like. By performing a reworking operation to replace the good new polarizer plate, the quality of the LCD module is kept good.

At this time, the reworking operation described above is performed by a worker by removing the polarizing plate from the LCD panel, cleaning the portion where the polarizing plate is removed with a cleaning liquid, and attaching the polarizing plate from which the protective film is removed to the surface of the LCD panel. By doing so.

Among the above-mentioned steps, in particular, the step of removing the defectively determined polarizing plate and the step of attaching a good polarizing plate require a high degree of precision and skill.

However, since the work of attaching the good polarizing plate to the LCD panel is performed by hand in the state of the LCD module, the polarizing plate attaching operation is not made stably due to the driving circuit part made of PCB and TCP, and the productivity of the product is lowered. There is a problem that the accuracy of the product is lowered when attaching the deterioration.

Accordingly, an object of the present invention is to enable the reworking of the polarizing plate in the LCD module state automatically.

Other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

1 is a perspective view showing a polarizing plate attachment device for a liquid crystal display device according to an embodiment of the present invention.

2 to 4 are flowcharts illustrating a polarizing plate attaching process using a polarizing plate attaching device for a liquid crystal display according to an exemplary embodiment of the present invention.

5 is a perspective view showing a polarizing plate attachment device for a liquid crystal display device according to another embodiment according to the technology of the present invention.

6 to 9 are flowcharts illustrating a polarizing plate attaching process using a polarizing plate attaching device for a liquid crystal display according to another exemplary embodiment of the present invention.

In order to achieve the above object, the present invention provides a polarizing plate supporting pressure unit and a polarizing plate supporting pressure unit for vacuum absorbing and supporting one side of the polarizing plate mounted on the surface, and one side of which is connected to the rotating shaft to rotate in a predetermined direction about the rotating shaft. LCD module which is installed adjacent to the polarizing plate protective layer separating part that separates the protective film attached to the polarized plate and the polarizing plate supporting pressure part to support the LCD module mounted on the surface by vacuum suction, and supports the driving circuit part of the LCD module to move horizontally in a predetermined direction It includes a support moving part, the polarizing plate is a polarizing plate in accordance with the horizontal movement of the LCD module support moving unit in the state in which the polarizing plate supporting pressure unit rotates in the direction of the LCD module and aligns and presses one edge of the polarizing plate opposite to one edge of the LCD panel of the LCD module. Slaves from the supporting press Ding as to be attached to the surface of the LCD panel.

In this case, the plurality of first vacuum suction holes for vacuum absorbing the polarizing plate to the polarizing plate supporting pressure unit may be formed to be spaced apart by a predetermined interval, and the sensing means for detecting the polarizing plate is installed in the polarizing plate supporting pressing unit to be predetermined according to a detection signal for the polarizing plate. Vacuum suction of the first vacuum suction holes positioned in the area may be controlled.

A first inclined part inclined downward at a predetermined angle may be formed at one end of the polarizing plate support pressing part supporting one edge of the polarizing plate, and the second inclined part may further include second vacuum suction holes for vacuum suction of one edge region of the polarizing plate. Can be formed.

A positioning stopper for determining the position of the polarizing plate may be further provided on the surface of the other end of the polarizing plate supporting pressure unit adjacent to the rotating shaft, and the mounting position of the stopper may be applied to the change in size of the polarizing plate. Can be variable.

The polarizing plate protective film removing unit includes a supply roller for supplying the adhesive member, a recovery roller for recovering the adhesive member supplied from the supply roller, and an adhesive member for pushing the adhesive member positioned between the supply roller and the recovery roller to attach to the surface of the protective film of the polarizing plate. It includes a tool, the recovery roller to recover the adhesive member attached to the surface of the protective film so that the protective film can be separated from the polarizing plate through the adhesive force of the adhesive member.

The adhesive member attachment tool may include a pressure roller for pressing the surface of the adhesive member to attach to the surface of the polarizing plate, a push rod having a predetermined length hinged to both ends of the pressure roller, and a push rod driving unit for reciprocating the push rod. The width of the pressure roller is preferably corresponding to the width of the adhesive member.

LCD module support pressing unit is a movable plate that moves horizontally along the guide rail, the second inclined portion that is fixed to support the LCD module and detachable to the moving plate, and to support the drive circuit unit downward in the area facing the drive circuit unit of the LCD module It may include a support plate having.

In this case, third vacuum suction holes may be formed in the second inclined portion to suction the driving circuit unit, and a handle may be further installed on a predetermined side surface of the support plate.

In addition, by attaching an adhesive member to the surface of one side of the protective film of the polarizing plate fixed by vacuum adsorption through the embodiment and then separating the protective film by the adhesive force of the adhesive member, one side edge of the polarizing plate separated from the protective film of the LCD module Aligning and pressing the one side edge of the surface of the LCD panel, and pressing the one side edge of the polarizing plate to move the LCD module outwardly opposite the one edge of the polarizing plate to gradually move the polarizing plate to the surface of the LCD panel. Through the attaching step, the reworking of the polarizer may be automated.

In another embodiment, a polarizing plate protective film separator for supporting and fixing a polarizing plate mounted on a surface and separating one side of a protective film attached to a polarizing plate mounted on a polarizing plate supported by one side thereof connected to a rotating shaft to rotate in a predetermined direction about the rotating axis, It is installed adjacent to the polarizing plate supporting pressure part to support the LCD module mounted on the surface by vacuum suction and to support the driving circuit part of the LCD module downwardly inclined to move horizontally in a predetermined direction, the polarizing plate is located in the region opposite to the LCD module It includes a polarizing plate pressing unit for pressing the one side edge of the surface of the polarizing plate is aligned with the one side edge of the LCD panel of the LCD module mounted on the LCD module support moving part by the rotation of the support, the LCD module support in the pressing state of the polarizing plate pressing unit On the horizontal movement of the eastern As the polarizing plate referred to the sliding support from the polarizing plate so that they can be attached to the surface of the LCD panel.

At this time, the plurality of first vacuum suction holes for vacuum adsorption of the polarizing plate on the polarizing plate support part may be formed to be spaced apart at a predetermined interval, and the sensing means for sensing the polarizing plate is installed in the polarizing plate support part in a predetermined area according to a detection signal for the polarizing plate. It is possible to control the vacuum suction of the located first vacuum suction holes.

A positioning stopper for determining the position of the polarizing plate may be further provided on the surface of the other end of the polarizing plate support adjacent to the rotation axis, and the mounting position of the stopper may be variable at the polarizing plate support so that it can be applied to the size change of the polarizing plate. Can be.

The polarizer auxiliary support may be further provided to support one end region of the polarizer adjacent to the polarizer support, and the second vacuum suction holes may be further formed in the polarizer auxiliary support to vacuum-adsorb one end region of the polarizer.

A positioning stopper for determining the position of the polarizing plate may be further provided on the surface of the polarizing plate supporting part, and the polarizing plate pressing part may include a third supply roller for supplying the buffer member and a fourth for recovering the buffer member from the third supply roller. The collecting roller may include a polarizing plate pressing tool configured to push the buffer member while driving up and down to press the other end of the polarizing plate.

At this time, a soft cloth may be used as the buffer member.

In another embodiment, attaching the adhesive member to the surface of the protective film on one side of the polarizer fixed by vacuum adsorption, and then separating the protective film through the adhesive force of the adhesive member while separating the one side edge of the polarizing plate from which the protective film is separated, the LCD panel of the LCD module. Aligning at one side edge of the surface of the surface of the LCD panel, pressing one side edge of the polarizing plate aligned to one edge of the surface of the LCD panel to a predetermined pressure, and pressing the one side edge of the polarizing plate to the LCD module of the polarizing plate. The reworking operation of the polarizing plate may be automated by moving the polarizing plate to the surface of the LCD panel by moving in an outward direction opposite to one edge.

Hereinafter, a polarizer attachment device for a liquid crystal display device and a polarizer attachment method using the same according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, a polarizer attaching device for a liquid crystal display includes a polarizer supporting pressure unit 10, a polarizer protective layer separating unit 12, and an LCD module supporting moving unit 14.

The polarizing plate support pressing unit 10 includes a plate 18 made of a rectangular shape so as to mount a good polarizing plate 16 on a surface by a predetermined transfer means and an operator, and then support it by vacuum suction.

The plate 18 is horizontally supported by a predetermined support means (not shown), and one side is pivotally coupled to the rotating shaft 20 (hereinafter, referred to as a first rotating shaft), and rotates clockwise or counterclockwise. Subsequently, the plate 18 is rotated in a predetermined direction about the first rotation shaft 20 to align one edge region of the polarizing plate 16 to one edge of the surface of the LCD panel, and then press the predetermined pressure.

During rotation of the plate 18, the plate 18 is referred to as a plurality of vacuum suction holes 22 (hereinafter referred to as a first vacuum suction hole) in order to prevent the settled polarizing plate 16 from escaping from the plate 18. ) Are arranged in a matrix structure at predetermined intervals.

Since the first vacuum suction holes 22 are formed to be spaced apart from each other by a predetermined interval, the selected portions of the polarizing plate 16 may be individually vacuumed by the holes in the lower portion of the selected portion. When separated from sliding while sliding from the plate 18, the stability of the process can be expected.

And, in order to detect whether the polarizing plate is present on the upper portion of the plate 18, the sensing means for detecting the polarizing plate 16 between the vacuum suction hole line formed by the first vacuum suction holes 22 For example, a plurality of detection sensors 23 (hereinafter, referred to as first detection sensors) are respectively installed. The first detection sensor 22 may be installed in the first vacuum suction hole 22.

The first detection sensors 23 detect the first vacuum suction holes 22 that are out of the adsorption state of the polarizing plate 16 when the polarizing plate 16 is slid for attachment to the LCD panel, thereby detecting the detected first. The vacuum suction of the first vacuum suction holes 22 is stopped by generating a predetermined detection signal so that the vacuum suction of the vacuum suction holes 22 can be turned off.

Thus, by turning off the vacuum suction of the first vacuum suction holes 22 which do not vacuum absorb the polarizing plate 16, the vacuum suction noise generated when the polarizing plate 16 is not vacuum sucked can be reduced, thereby improving the working environment. Can be.

In addition, an inclined portion 24 (hereinafter referred to as a first inclined portion) inclined downwardly at a predetermined angle is formed from an end portion of the other side opposite to one side of the plate 18 on which the first rotation shaft 20 is formed to a predetermined length. . The first inclined portion 24 may secure a wider pressing area of the plate 18 to improve the reliability of the attaching operation of the polarizing plate 16.

In this case, a plurality of vacuum suction holes 25 (hereinafter, referred to as second vacuum suction holes) are formed in the first inclined portion 24, and one edge of the polarizing plate 16 is vacuum sucked to more firmly fix the polarizing plate 16. ) The reliability of the attachment work can be improved.

In addition, a pair of positioning stoppers 26 are provided on the surface of the plate 18 adjacent to the first rotating shaft 20 to determine the position of the polarizing plate 16 so that one side of the polarizing plate 16 is disposed. I support it.

In this way, the stopper 26 is installed to stably position the polarizing plate 16 on the plate 18 in correspondence with the size of the polarizing plate 16, and later, the adhesive which is one of the adhesive members on the surface of the polarizing plate 16 The movement of the polarizing plate 16 which may be generated when the tape is attached can be prevented by supporting the stopper 26.

At this time, the stopper 26 is composed of the first stopper 28 and the second stopper 30 which are spaced apart from each other by a predetermined interval, and then, the adhesive tape is attached to the surface of the polarizing plate 16 by the adhesive member attachment tool mentioned later. By allowing the other edge to be completely bonded, the protective film of the polarizing plate 16 removed from the other edge of the polarizing plate 16 may be more easily separated.

In addition, the stopper 26 is installed on the plate 18 by a predetermined coupling, for example, screwing, so that the mounting position of the stopper 26 can be varied so as to correspond to the size change of the polarizing plate 16. . Of course, the stopper 26 may be fixed to the plate 18.

The polarizing plate protective film separator 12 is disposed adjacent to one end of the polarizing plate supporting pressure unit 10 and is not supported by the plate 18 among the two side protective films (not shown) attached to the front and rear surfaces of the polarizing plate 16. An adhesive member such as an adhesive tape 32 is attached to the surface of one side of the protective film and then separated to separate the protective film from the polarizing plate 16 using the adhesive force of the adhesive tape 32.

The polarizing plate protective film separator 12 has a rotating shaft 34 (hereinafter, referred to as a second rotating shaft) and is fixed to the second rotating shaft to supply a feed roller 36 for supplying an adhesive tape 32 wound on an outer circumferential surface thereof, and a rotating shaft. (38; hereinafter referred to as a third rotary shaft), fixed to the third rotary shaft 38, the recovery roller 40, the supply roller for recovering the adhesive tape 32 supplied from the supply roller 36 The adhesive tape supplied from the feed roller 36 by pushing a predetermined region of the adhesive tape 32 positioned between the feed roller 36 and the collecting roller 40 to be disposed between the feed roller 36 and the collecting roller 40. And an adhesive member attaching tool 42 for attaching 32 to the surface of the protective film of the polarizing plate 16, wherein the recovery roller 40 recovers the adhesive tape 32 attached to the surface of the protective film. Through the adhesive force of the protective film is separated from the polarizing plate 16 in a state of being bonded to the adhesive tape (32).

At this time, the adhesive member attaching tool 42 pressurizes the surface of the adhesive tape 32 and attaches the adhesive tape 32 to the surface of the polarizing plate 16 at both ends of the pressure roller 44 and the pressure roller 44. The push rod 46 has a predetermined length to which one end is hinged, and a push rod driver 48 for reciprocating the push rod 46.

In addition, the width of the adhesive tape 32 and the width of the pressure roller 44 for pressing the adhesive tape 32 preferably correspond to the separation distance between the stopper 28 and the stopper 30.

This is because when the width of the adhesive tape 32 is narrower than the distance between the stoppers 28 and 30, the pressure roller 44 passes between the stopper 28 and the stopper 30 so that the adhesive tape 32 is polarized plate 16. This is to be able to completely adhere to the other edge of the surface of the.

The LCD module support moving unit 14 is installed adjacent to the polarizing plate supporting pressure unit 10 to remove the polarizing plate that is judged to be defective, and then supports the LCD module 50 mounted on the surface by vacuum adsorption and the driving circuit unit of the LCD module 50 ( 52) is inclined downward to move horizontally in a predetermined direction.

The LCD module support moving part 14 moves horizontally along a pair of guide rails 54 for an inline process, and includes a taper-shaped guide 55 on the upper surface thereof, the width of which is narrowed toward the lower side. Plate 56, corresponding to the guide 55 of the movable plate 56, so as to be slidingly coupled to the guide 55 of the movable plate 56, the lower trapezoidal groove, which becomes narrower toward the bottom And a support plate 58 having a face.

The upper surface of the support plate 58 includes a first surface on which the LCD panel 60 is placed and a second surface 57 (hereinafter referred to as a second inclined portion) inclined downward at an angle with respect to the first surface.

The second inclined portion 57 extends from two adjacent sides of the first surface, and the source driving PCB and the gate driving PCB are placed thereon.

The source driving PCB and the gate driving PCB are connected to the TFT substrate 62 of the LCD panel 60 by the TCP 64.

The second inclined portion 57 supporting the source driving PCB and the gate driving PCB 66 is a vacuum suction hole 68 (hereinafter referred to as a third vacuum suction chip hole) to prevent the flow of the PCB 66 placed therein. Are formed) to vacuum and fix the PCB 66.

Since the PCB 66 is positioned and supported on the second inclined portion 57, the PCB 66 is positioned lower than the LCD panel 60 vacuum-adsorbed to the first surface of the movable plate 56. When attaching the good polarizing plate 16 to the panel 60, the difficulty of attaching the polarizing plate 16 caused by the driving circuit part 52 is eliminated.

The support plate 58 is fixedly installed on the movable plate 56 so that the support plate 58 can be detachably attached to the movable plate 56 so as to smoothly replace the support plate 58 with respect to the size change caused by the model deformation of the LCD module 50. .

On the other hand, the handle 70 is provided on a predetermined side surface of the support plate 58 so that the support plate 58 can be more easily separated when separating from the moving plate 56.

Looking at the method of attaching the polarizing plate using the polarizing plate attachment device for a liquid crystal display device having such a structure as follows.

As shown in FIG. 1 or FIG. 2, the support plate of the LCD module support moving part 14 is removed through the robot arm and an operator by removing the polarizing plate that has been determined to be defective and then cleaning the LCD module 50 having the cleaned LCD panel 60. Load on 58.

At this time, the LCD panel 60 of the LCD module 50 is fixed to the first surface of the support plate 58 by vacuum suction, and the driving circuit portion 52 of the LCD module 50 is on the second inclined portion 57. It is supported in a downwardly inclined state by the vacuum suction is fixed by the third vacuum suction holes 68 formed in the second inclined portion (57).

With the loading of the LCD module 50, a good polarizing plate 16 is loaded onto the plate 18 of the polarizing plate supporting pressure unit 10 through a predetermined robot arm and an operator.

At this time, one side of the polarizing plate 16 is supported in contact with one side of the stopper 26 provided in the plate 18, the polarizing plate 16 loaded in the plate 18 is the first vacuum suction holes 22 And the second vacuum suction holes 24 are tightly fixed by vacuum suction.

Subsequently, the push rod 46 is pushed in the direction of the adhesive tape 44 by the driving of the push rod driver 48 so that the pressure roller 44 installed at one end of the push rod 46 is applied to the surface of the adhesive tape 32. The plate 16 is pressurized by the pressure roller 44 at the same time as the adhesive tape 32 wound on the feed roller 36 is brought into contact with the pushing rod 46 in the direction of the stopper 26 of the push rod 46. Is gradually attached to the stopper 26 from the end of the first inclined portion.

At this time, the pressure roller 44 penetrates between the first stopper 28 and the second stopper 30 for complete adhesion to the other end of the surface of the polarizing plate 16.

After the adhesive tape 32 is adhered to the entire surface of the polarizing plate 16, the push rod 46 is gradually returned by the driving of the push rod driving unit 48. At this time, the recovery roller 40 is driven. The adhesive tape 32 is recovered while being wound on the recovery roller 40.

As the adhesive tape 32 is recovered, the protective film attached to the surface of the polarizing plate 16 is attached to the adhesive tape 32 while being separated from the polarizing plate 16 by the adhesive force of the adhesive tape 32 and wound around the recovery roller 40. Lose.

Subsequently, as shown in FIG. 1 or FIG. 3, the plate 18 is rotated counterclockwise around the first rotation shaft 20 by the driving of a predetermined driving means to support one end of the polarizing plate 16. The opposing end portions of the LCD panel 60 loaded on the 58 are aligned and positioned, and then pressurized to a predetermined pressure. At this time, the portion placed on the first inclined portion 24 of the plate 18 is pressed first.

Then, as shown in Fig. 1 or 4, the moving plate 56 along the guide rail 54, the left direction of Fig. 4 is a direction in which the first inclined portion 24 can continue to be pressed Move horizontally. Then, since the plate 18 is attached to the surface of the LCD panel 60 by pressing one end of the polarizing plate 16, the polarizing plate 16 is vacuum-adsorbed at a predetermined vacuum pressure according to the movement of the moving plate 56. It slides on the plate 18 and is gradually attached to the surface of the LCD panel 60.

At this time, the first vacuum suction holes 22 and the second vacuum suction holes 25 which do not vacuum absorb the polarizing plate 16 by sliding the polarizing plate 16 correspond to the polarization plate sensing results of the first detection sensors 23. Accordingly, the vacuum suction is turned off to remove the noise generated during the vacuum suction, thereby improving the working environment.

As described above, the process of attaching the polarizing plate from which one side protective film is removed to the surface of the LCD panel and then automatically attaching the polarizing plate on the surface of the LCD panel improves the productivity and product yield of the product.

In particular, by fixing the driving circuit portion inclined at the second inclined portion of the support plate in the LCD module state and automating the attachment of the polarizing plate, the inconvenience of the work generated by the driving circuit portion during manual operation is eliminated, thereby improving work efficiency.

Meanwhile, in the exemplary embodiment of the present invention, the matrix structure of the vacuum suction holes is mentioned, but in addition to the matrix structure of the vacuum suction holes, the vacuum suction holes may be integrally formed for each line.

Figure 5 shows another embodiment of the present invention, referring to Figure 5 another embodiment of the present invention in detail as follows. Detailed description of the same parts as those mentioned in the above embodiment will be omitted.

As shown in the drawing, the polarizer attaching device for a liquid crystal display device is largely composed of a polarizing plate supporting unit 72, a polarizing plate protective film separating unit 74, an LCD module supporting moving unit 76, and a polarizing plate pressing unit 78.

The polarizing plate support portion 72 has a plate 82 made of a rectangular shape so as to mount a good polarizing plate 80 on a surface by a predetermined transfer means and an operator, and then support it by vacuum suction, and one side of the rotating shaft 84 The plate 82 is horizontally supported by a predetermined support means (not shown) in a state of being fixed to the first rotating shaft hereinafter.

One end region facing the other side of the plate 82 of the polarizing plate 80 loaded on the plate 82 protrudes a predetermined length in the outward direction of the plate 82, and the pressing region of the polarizing plate pressing unit 78 which will be mentioned later. To ensure that

For vacuum suction of the polarizer 80, a plurality of vacuum suction holes 86 (hereinafter, referred to as first vacuum suction holes) are formed in a matrix structure in a spaced apart manner at a predetermined interval.

Since the first vacuum suction holes 86 are formed to be spaced apart from each other by a predetermined interval, the selected portions of the polarizing plate 80 may be individually vacuumed by the holes in the lower portion of the selected portion. ) Can be expected to be stable when the process is separated from the sliding plate 82.

In addition, in order to detect whether or not a polarizing plate is present on the upper portion of the plate 82, sensing means capable of sensing the polarizing plate 80 between the vacuum suction hole lines formed by the first vacuum suction holes 86. For example, a plurality of detection sensors are respectively installed.

The detection sensors 88 detect the first vacuum suction holes 86 that are out of the adsorption state of the polarizing plate 80 when the polarizing plate 80 is slid for attachment to the LCD panel, and thus detects the detected first vacuum suction. The vacuum suction of the first vacuum suction holes 86 is stopped by generating a predetermined detection signal so that the vacuum suction of the holes 86 may be turned off.

Thus, by turning off the vacuum suction of the first vacuum suction holes 86 which do not vacuum absorb the polarizing plate 80, the vacuum suction noise generated when the polarizing plate 80 is not vacuum sucked can be reduced to improve the working environment. Can be.

In addition, a pair of positioning stoppers 90 are provided on the surface of the plate 82 adjacent to the first rotating shaft 84 to determine the position of the polarizing plate 80. I support it.

As the stopper 90 is installed in this way, the polarizing plate 80 may be stably positioned on the plate 82 corresponding to the size of the polarizing plate 80, and then, one of the adhesive members is attached to the surface of the polarizing plate 80. It is possible to prevent the movement of the polarizing plate 80 that may be generated when the tape is attached by supporting the stopper 90.

At this time, the stopper 90 is composed of the first stopper 92 and the second stopper 94 which are installed to face the predetermined distance apart, so that the adhesive tape is attached to the surface of the polarizing plate 80 by the adhesive member attachment tool mentioned later. By allowing the other edge to be completely bonded, the protective film of the polarizing plate 80 removed from the other edge of the polarizing plate 80 can be more easily separated.

In addition, the stopper 90 is installed on the plate 82 by a predetermined coupling, for example, screwing, so that the installation position of the stopper 90 may be variable so as to correspond to the size change of the polarizing plate 80. .

On the other hand, the auxiliary support portion, such as the auxiliary plate 96 is further provided adjacent to the other side of the plate 82 may support one end region of the polarizing plate 80 protruding a predetermined length to the outside of the plate 82. .

As described above, the auxiliary plate 96 supports the one end region of the polarizing plate 80 to stably support the one end region of the polarizing plate 80.

In addition, the vacuum suction holes 98 are formed in the auxiliary plate 96 to vacuum-adsorb one end region of the polarizing plate 80 to increase the fixing force of the one end region of the polarizing plate 80, thereby improving the reliability of the work. Can be.

The polarizing plate protective film separator 74 has a first supply roller 104 for supplying an adhesive member such as the adhesive tape 102 and a first recovery roller 106 for recovering the adhesive tape 102 as mentioned in the above embodiment. ), Since the adhesive tape 102 includes an adhesive member attaching tool 108 for attaching the adhesive tape 102 to the surface of one side protective film of the polarizing plate 80, detailed description thereof will be omitted.

In addition, since the adhesive member attachment tool 108 also includes the pressure roller 110, the push rod 112, and the push rod driver 114 as mentioned above, detailed description thereof will be omitted.

The LCD module support moving part 76 installed adjacent to the polarizing plate support part 72 is a moving plate 116 for horizontally moving as described in the above embodiment, and a moving plate 116 to support and detach the LCD module. Since the support plate 118 is fixedly installed on the detailed description thereof will be omitted.

The polarizing plate pressing portion 78 is located in an area facing the LCD module, and is mounted on the support plate 118 of the LCD module support moving portion 76 by the rotation of the plate 82. One side edge of the polarizing plate 80 which is aligned to one side edge of the pressure is pressed to a predetermined pressure.

The polarizing plate pressing portion 78 is a supply roller 124 for supplying the buffer member 122 (hereinafter referred to as a second supply roller), and a recovery roller 126 for recovering the buffer member 122 from the second supply roller 124. A second recovery roller), and a polarizing plate pressing tool 128 for pressing the polarizing plate 80 while pressing the buffer member 122 by driving up and down.

The buffer member 122 is positioned between the polarizing plate pressing tool 128 and the polarizing plate 80, and the polarizing plate pressing tool 128 presses the surface of the polarizing plate 80 when the LCD module support moving unit 76 moves horizontally. In order to slide naturally, a soft cloth or the like is generally used.

The contact length of the polarizing plate pressing tool 128 for pressing the polarizing plate 80 is at least equal to or greater than the width of the polarizing plate 80 so that the surface pressing of the polarizing plate 80 can be performed at once.

Of course, the width of the buffer member 122 also preferably corresponds to the contact length of the polarizing plate pressing tool 128.

Looking at the process of automatically attaching the polarizing plate using a polarizing plate attachment device for a liquid crystal display device having such a structure as follows.

5 or 6, the support plate 116 of the LCD module support moving part 76 through the robot arm and the operator to remove the LCD module having a defective determination and then the LCD module having the cleaned LCD panel 120. Load onto the phase.

At this time, the LCD panel 120 of the LCD module is fixed by vacuum suction, and the driving circuit unit 130 of the LCD module is supported on the inclined portion 132 in a downwardly inclined state to form a third vacuum formed on the inclined portion 132. The vacuum is sucked and fixed by the suction holes 134.

In addition to the loading of the LCD module, a good polarizing plate 80 is loaded onto the plate 82 of the polarizing plate support 72 through a predetermined robot arm and an operator.

At this time, one side of the polarizing plate 80 is supported on one side of the stopper 90 installed in the plate 82, the polarizing plate 80 loaded in the plate 82 is the vacuum of the first vacuum suction holes 86 Closely fixed by adsorption, the other side of the polarizing plate 80 is supported by the auxiliary plate 96 and vacuum-absorbed by the second vacuum suction holes 98.

Subsequently, the push rod 112 is pushed in the direction of the adhesive tape 102 by the driving of the push rod driver 114, and the pressure roller 110 installed at one end of the push rod 112 is applied to the surface of the adhesive tape 102. The polarizing plate is contacted and the adhesive tape 102 wound around the first feed roller 104 is pressed by the pressure roller 110 at the same time as the push rod 112 continues to push in the direction of the stopper 90. It gradually attaches from one side of the surface of 80 to the other side in contact with the stopper 90.

At this time, the pressure roller 110 penetrates between the first stopper 92 and the second stopper 94 for complete adhesion to the other side of the surface of the polarizing plate 80.

After the adhesive tape 102 is adhered to the entire surface of the polarizing plate 80, the push rod 112 is gradually returned to one side of the polarizing plate 80 by the driving of the push rod driving unit 114. At this time, the adhesive tape 102 is recovered while being wound on the first recovery roller 106 as the first recovery roller 106 is driven.

As the adhesive tape 102 is recovered, the protective film attached to the surface of the polarizing plate 80 is attached to the adhesive tape 102 while being separated from the polarizing plate 80 by the adhesive force of the adhesive tape 102 and thus the first recovery roller 106. Is wound on.

Subsequently, as shown in FIG. 5 or 7, the vacuum suction of the second vacuum suction holes 98 formed on the auxiliary plate 96 is turned off by a predetermined control signal, and the driving of the predetermined driving means is turned off. As a result, the plate 82 is rotated in a predetermined direction about the rotation shaft 84 to align one end of the polarizing plate 80 to an opposite end of the LCD panel 120 loaded on the support plate 118.

Then, as illustrated in FIG. 5 or 8, the polarizing plate pressing tool 128 of the polarizing plate pressing unit 78 pushes the buffer member 122 toward the LCD panel 120 to supply the second feed roller 124. The buffer member 122 released from the pressing portion is pressed to one end of the polarizing plate 80 aligned with one end of the LCD panel 120 at a predetermined pressure.

Thereafter, as shown in FIG. 5 or 8, the moving plate 116 horizontally moves along the guide rail in an outward direction opposite to one end of the polarizer 80. Then, since the polarizing plate pressing tool 128 is attached to the surface of the LCD panel 120 by pressing one end of the polarizing plate 80, the polarizing plate 80 slides on the plate 82 according to the movement of the moving plate 116. Is gradually attached to the surface of the LCD panel 120.

At this time, by sliding the polarizing plate 80, the vacuum suction holes 86 that do not vacuum suction the polarizing plate 80 is the vacuum suction of the first vacuum suction holes 86 according to the detection result of the polarizing plate of the sensor 88 It is turned off to remove the noise generated during the vacuum suction to improve the working environment.

As described above, the effect of the polarizer attaching device for the liquid crystal display according to another embodiment is the same as that mentioned in the above embodiment.

As described above, the present invention attaches the adhesive tape to the protective film attached to one surface of the polarizing plate and then separates the one side protective film from the polarizing plate by using the adhesive force of the adhesive tape while separating the adhesive tape. Thereafter, the polarizing plate from which one side of the protective film is removed is automatically attached to the LCD panel, thereby preventing a decrease in yield of the product by manual labor, thereby improving productivity of the product.

In addition, the reworking operation of removing the defective polarizer and attaching the good polarizer again automatically proceeds in the state of the LCD module, thereby eliminating the inconvenience caused by the driving circuit part attached to the LCD panel, thereby improving the work efficiency. There is an effect that can be improved.

Claims (24)

A polarizing plate supporting pressure unit which vacuum-adsorbs and supports the polarizing plate mounted on the surface, and has one side connected to the rotating shaft to rotate and pressurize in a predetermined direction about the rotating shaft; A polarizing plate protective film separator for separating a protective film attached to the polarizing plate placed on the polarizing plate supporting pressure part; An LCD module support moving part installed adjacent to the polarizing plate supporting pressure part to support an LCD module mounted on a surface, supporting a driving circuit part of the LCD module, and horizontally moving in a predetermined direction; The polarizer is supported by the polarizer in accordance with the horizontal movement of the LCD module support moving part in a state in which the pressing unit rotates in the direction of the LCD module and aligns and presses one edge of the opposite polarizing plate to one edge of the LCD panel of the LCD module. The polarizing plate attachment device for a liquid crystal display device, characterized in that attached to the surface of the LCD panel while sliding from the polarizing plate supporting pressure portion. The polarizing plate attachment device of claim 1, wherein a plurality of first vacuum suction holes for vacuum suctioning the polarizing plate to the polarizing plate support pressing unit are arranged at predetermined intervals. The liquid crystal display of claim 2, wherein sensing means for sensing the polarizing plate is installed in the polarizing plate supporting pressure part to control vacuum suction of the first vacuum suction holes located in a predetermined area according to a sensing signal of the polarizing plate. Polarizing plate attachment device for display device. The polarizing plate attachment device of claim 1, wherein a first inclined portion is inclined downward at a predetermined angle to one end of the polarizing plate support pressing portion supporting one edge of the polarizing plate to support the driving circuit portion. The polarizing plate attachment device of claim 4, wherein the first inclined portion further includes second vacuum suction holes that vacuum-adsorb one edge region of the polarizing plate. 2. The polarizing plate attachment apparatus of claim 1, wherein a positioning stopper is further provided on a surface of the polarizing plate support pressing portion adjacent to the rotation axis to determine the position of the polarizing plate. 7. The polarizer mounting apparatus of claim 6, wherein the installation position of the stopper is varied in the polarizer supporting pressure part so as to be applied to the size change of the polarizer. According to claim 1, wherein the polarizing plate protective film removing unit Feed roller for supplying the adhesive member; A recovery roller for recovering the adhesive member supplied from the supply roller; An adhesive member attaching tool for pushing the adhesive member positioned between the feed roller and the recovery roller to attach to the surface of the protective film of the polarizing plate; And the recovery roller recovers the adhesive member attached to the surface of the protective film and separates the protective film from the polarizing plate through the adhesive force of the adhesive member. 9. The apparatus of claim 8, wherein the adhesive member attachment tool comprises: a pressure roller for pressing the surface of the adhesive member and attaching the surface to the surface of the polarizing plate; A push rod having a predetermined length hinged to both ends of the pressing roller; And a push rod driving unit configured to reciprocate the push rod. 10. The polarizing plate attachment facility for a liquid crystal display device according to claim 9, wherein a width of the pressure roller corresponds to a width of the adhesive tape. According to claim 1, wherein the LCD module support pressure portion moving plate for moving horizontally along the guide rail; And a support plate fixedly installed to support the LCD module and to be detachable from the movable plate and having a second inclined portion to support the driving circuit portion downward in an area facing the driving circuit portion of the LCD module. Polarizing plate attachment device for display device. 12. The polarizing plate attachment apparatus of claim 11, wherein third vacuum suction holes are formed in the second inclined portion to suction the driving circuit. The polarizing plate attachment apparatus of claim 11, wherein a handle is further provided on a predetermined side surface of the support plate. Attaching an adhesive member to a surface of one side of the protective film of the polarizing plate fixed by vacuum adsorption, and then separating the protective film through the adhesive force of the adhesive member; Aligning and pressing one edge of the polarizing plate from which the protective film is separated to an opposite edge of the surface of the LCD panel of the LCD module; And attaching the polarizing plate to the surface of the LCD panel gradually by moving the LCD module in an outward direction opposite to the one edge of the polarizing plate while pressing one edge of the polarizing plate. Way. A polarizing plate support part supporting and fixing a polarizing plate mounted on a surface thereof and having one side connected to a rotating shaft to rotate in a predetermined direction about the rotating shaft; A polarizing plate protective film separator for separating one side protective film attached to the polarizing plate placed on the polarizing plate supporting part; An LCD module support moving part installed adjacent to the polarizer supporting pressure part to support and fix an LCD module mounted on a surface, support the driving circuit part of the LCD module downwardly, and move horizontally in a predetermined direction; Located at an area opposite the LCD module to press one edge of the surface of the polarizing plate which is aligned to one edge of the surface of the LCD panel of the LCD module mounted on the LCD module support moving portion by the rotation of the polarizing plate support A polarizer pressing unit; And a polarizing plate is attached to a surface of the LCD panel while the polarizing plate slides from the polarizing plate support part in accordance with a horizontal movement of the LCD module support moving part in the pressing state of the polarizing plate pressing unit. The polarizing plate attachment device of claim 15, wherein the plurality of first vacuum suction holes for vacuum-adsorbing the polarizing plate are arranged at predetermined intervals. 16. The liquid crystal display of claim 15, wherein sensing means for sensing the polarizing plate is installed in the polarizing plate support part to control vacuum suction of the first vacuum suction holes in a predetermined area according to a sensing signal of the polarizing plate. Polarizer attachment device for the device. The polarizing plate attachment device according to claim 15, wherein a positioning stopper for positioning the polarizing plate is further provided on a surface of the other end of the polarizing plate supporter adjacent to the rotation axis. 19. The polarizing plate attachment apparatus of claim 18, wherein the installation position of the stopper is varied in the polarizing plate supporter so as to be applied to the size change of the polarizing plate. The polarizing plate attachment apparatus of claim 15, further comprising a polarizing plate auxiliary supporting unit adjacent to the polarizing plate supporting unit to support one end region of the polarizing plate. 21. The polarizing plate attachment device of claim 20, wherein second polarization holes are further formed in the auxiliary support of the polarizing plate to vacuum-adsorb one end region of the polarizing plate. The method of claim 15, wherein the polarizing plate pressing portion second supply roller for supplying a buffer member; A second recovery roller for recovering the buffer member from the second supply roller; And a polarizing plate pressing tool which pushes the buffer member while driving up and down to press the other end of the polarizing plate. 23. The polarizing plate attaching device of claim 22, wherein the buffer member is the soft cloth. Attaching an adhesive member to a surface of one side of the protective film of the polarizing plate fixed by vacuum adsorption, and then separating the protective film through the adhesive force of the adhesive member; Aligning one side edge of the polarizing plate from which the protective film is separated to an opposite side edge of the surface of the LCD panel of the LCD module; Pressing one edge of the polarizing plate aligned with one edge of the surface of the LCD panel to a predetermined pressure; And attaching the polarizing plate to the surface of the LCD panel gradually by moving the LCD module in an outward direction opposite to the one edge of the polarizing plate while pressing one edge of the polarizing plate. Way.