JP2001318375A - Polarizing plate sticking device for liquid crystal display device and polarizing plate remachining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a polarizing plate sticking device for a liquid crystal display device and a polarizing plate remachining device which are greatly improved in productivity of the product on the whole by preventing static electricity from being generated between a polarizing plate and a liquid crystal panel in a polarizing plate sticking process and a polarizing plate remachining process for the liquid crystal display device and performing heating and pressing processes for the polarizing plate at the same time. SOLUTION: A liquid crystal panel carrying jig 32 moves the liquid crystal panel 1 to the right and left while stably holding it. When the liquid crystal panel carrying jig 32 stops above a polarizing plate arraying jig 33, the arraying jig 33 tilts at a certain angle to the liquid crystal panel carrying jig 32 so that one side edge of the individual polarizing plate 2 that the arraying jig holds is arrayed to one side edge of the individual liquid crystal panel 1 that the liquid crystal panel carrying jig 32 holds. A roll unit 40 mounted at an end part of the polarizing plate arraying jig 33 performs a series of rotating operations to press the individual polarizing plate 2 toward the individual liquid crystal panel 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polarizing plate attaching apparatus and a polarizing plate reworking apparatus for a liquid crystal display device, and more particularly, to a polarizing plate heating and pressing process together with a polarizing plate attaching process and a reworking process. The present invention relates to a polarizing plate attaching device for a liquid crystal display device to be advanced, a reworking device, and a method therefor.

[0002]

2. Description of the Related Art In recent years, with the advance of information society, the importance of a liquid crystal display device, which is one of information display devices, is increasing. In particular, a liquid crystal display device is a CRT (Cathode) because it can be reduced in size, weight, and power consumption.
As an alternative to overcome the shortcomings of ray tubes, its area of use is expanding.

Usually, such a conventional liquid crystal display device is a direct interface for a user, and is provided with a liquid crystal panel for displaying an internal electric signal on an image. In this case, the liquid crystal panel is composed of a combination of upper and lower substrates sequentially laminated with liquid crystal interposed.

At this time, a polarizing plate is attached to the outermost peripheral surfaces of the upper and lower substrates forming the liquid crystal panel, and the polarizing plate selectively selects only light that vibrates in a specific direction out of the light transmitted through the liquid crystal. The liquid crystal panel assists the liquid crystal panel in properly performing its own image display function by playing a role of transmitting light to the liquid crystal panel.

[0005] Various forms of the conventional polarizing plate are as follows.
For example, US Pat. No. 5,486,935 “100 nm
High Efficiency Chiral Nematic Liquid Crystal Back-Polarizing Plate for Liquid Crystal Display Device with Notch Polarization of .about.250 nm Bandwidth (High
efficiency chiral nematic
liquid crystal rear polar
riser for liquid crystal
display having a notch po
lamination bandwidth of 10
0 nm to 250 nm) ", US Pat.
No. 8422 “Filter with cholesteric polarizer with baffling gent film and linear polarizer (Notc
h filters with cholesteri
c polarizers with birefri
ngent film and linear pola
US Pat. No. 5,691,788, "Polarizer or diffuser coated irregularly with a first opaque material and an LCD (LCD h) having black metrics irregularly coated with a second opaque material.
ving a polarization or d
iffusion plate with an ir
regularly coated first op
aque material and black m
atrix of a second opaque
material) "and the like.

Also, a process of attaching a polarizing plate to a liquid crystal panel by a conventional technique, for example, US Pat. No. 5,566,762.
No. 4 “Polarization plate attachment device (Polarization p.
late gluing apparatus ", U.S. Pat. No. 5,739,889," Liquid crystal display and method for manufacturing the same (Liquid crystal display)
y device and a production
method for the same) "and the like.

In a conventional production line, for example, a polarizing plate attaching step, a polarizing plate pressing step, a printed circuit board attaching step, a polarizing plate attaching state checking step, and the like are sequentially performed, and the polarizing plate and the printed circuit board are attached and completed. Manufactures liquid crystal panels.

At this time, the conventional polarizing plate attaching process is automatically performed by the polarizing plate attaching device for the liquid crystal display device. In this case, the polarizing plate attaching device for the liquid crystal display device removes the polarizing plate mounted on the outside. After extracting one by one, this polarizing plate is loaded on a polarizing plate alignment jig.

When the loading process of the polarizing plate is completed, the polarizing plate attaching apparatus first tilts the polarizing plate aligning jig by a predetermined angle, and then moves the liquid crystal panel on the polarizing plate aligning jig. In this case, the liquid crystal panel exposes a portion where the attachment of the polarizing plate is required, for example, an upper substrate to the above-mentioned polarizing plate alignment jig side.

As described above, when the polarizing plate aligning jig is inclined at a predetermined angle and the liquid crystal panel runs on the polarizing plate aligning jig, the polarizing plate fixed to the polarizing plate aligning jig becomes, for example, a liquid crystal. When the polarizing plate is attached to the panel, the polarizing plate fixed on the polarizing plate alignment jig is firmly attached to the upper substrate of the liquid crystal panel.

In this case, a guide roller is further mounted on the upper part of the polarizing plate alignment jig. The guide roller maintains the rotating state at a constant speed while the liquid crystal panel is running, so that the polarizing plate is driven by the liquid crystal. It plays a role of guiding the panel so that it is transported more smoothly.

At this time, the process of attaching the polarizing plate to the lower substrate of the liquid crystal panel using the conventional technique is the same as the above-mentioned process of attaching the polarizing plate to the upper substrate. Is omitted.

Subsequently, in the production line, a polarizing plate heating / pressing process is performed in which the liquid crystal panel on which the upper and lower substrates have been completely adhered to the polarizing plate is pressed down with a constant heat and pressure.

At this time, in the production line, after the liquid crystal panel on which the attachment of the polarizing plate has been temporarily completed is loaded in the heating / pressing chamber, the polarizing plate is heated / heated using the heating / pressing chamber. You will press. In this case, in the production line, a certain amount of pressure and heat are supplied into the heating / pressurizing chamber so that the liquid crystal panel is affected by the pressure and heat.

When the heating / pressing process proceeds for a certain period of time, the air bubbles distributed between the liquid crystal panel and the polarizing plate are removed, and the polarizing plate is more stable on the upper and lower substrates of the liquid crystal panel. The adhered state can be maintained.

Subsequently, in the production line, a series of printed circuit board attaching steps for attaching the printed circuit board to the liquid crystal panel with the polarizing plate is performed, and the attachment of the printed circuit board is completed. The step of checking the adhered state of the polarizing plate proceeds.

At this time, if the state of adhesion of the polarizing plate is abnormal, the production line proceeds with a reworking process to replace the existing polarizing plate with a new polarizing plate. In this case, the worker removes the existing polarizing plate from the liquid crystal panel, aligns the new polarizing plate on the liquid crystal panel, and presses the aligned polarizing plate through, for example, a crimping tool.
The newly exchanged polarizer maintains a more stable attachment state on the upper and lower substrates of the liquid crystal panel.

[0018]

However, various problems are involved in the series of steps for attaching a polarizing plate according to the prior art mentioned above. The details are as follows.

As mentioned above, the polarizing plate attaching apparatus tilts the polarizing plate fixing jig at a predetermined angle, and at the same time, makes the liquid crystal panel run on the polarizing plate process jig, thereby passing the polarizing plate fixing jig to the polarizing plate fixing jig. The fixed polarizing plate is transferred to the liquid crystal panel side and sticks to it, but in this case, the polarizing plate has to make an inevitable contact with the guide roller, and as a result, after the polarizing plate attaching process is completed, Therefore, a large amount of static electricity is generated on the polarizing plate.

Such static electricity has a great adverse effect on the liquid crystal panel, and for example, causes a problem that a thin film transistor formed on a lower substrate of the liquid crystal panel is damaged.

In a conventional production line, in order to eliminate such a problem of static electricity, an ion emission process using an ionizer is performed.

However, since the amount of static electricity generated by contact with the guide roller is much larger than the amount of static electricity that can be removed by the ionizer, the use of the above-described ionizer alone reduces the static electricity generated by the polarizing plate. It cannot be removed effectively.

Further, as described above, in the conventional production line, after the primary polarizing plate attaching process is completed, the polarizing plate heating / pressing process is performed by the heating / pressing chamber. It has the advantage that bubbles existing between the polarizer and the liquid crystal panel can be removed and a good quality liquid crystal panel can be secured. However, the polarizer heating and pressing process must be performed after the polarizer attaching process. Therefore, there is a problem that productivity is greatly reduced.

Of course, such a problem can be prevented in advance by omitting the polarizing plate heating / pressing step.
We need to establish another method to remove air bubbles that exist between the polarizer and the liquid crystal panel, and continue the process of heating and pressurizing the polarizer while deeply recognizing the problem of reduced productivity. is the current situation.

On the other hand, as described above, in the conventional production line, if an abnormal adhesion state of the polarizing plate is found in a series of polarizing plate adhesion state checking steps, a reworking step is performed to replace the existing polarizing plate. Replaced with a polarizing plate.

However, since such a polarizing plate exchange process generally proceeds entirely depending on the manual operation of an operator, the possibility of occurrence of trouble cannot be denied. For example, foreign matter flows between the polarizer and the liquid crystal panel,
Various accidents such as generation of air bubbles and breakage of the liquid crystal panel can occur.

Therefore, it is difficult to automatically manage the working environment, and as a result, the above-mentioned problem of generation of static electricity and bubble is more serious than that of the polarizing plate attaching process.

Of course, if the reworking process is automated, the above-mentioned various problems can be prevented in advance, but usually, the reworking process is different from the polarizing plate attaching process, in that the liquid crystal panel and the printed circuit board are integrated into one unit. Since it is generally performed after the combination, the conventional production line has to consider the problem of damage to the printed circuit board, and thus, while recognizing the above-mentioned problems deeply, it is inevitable to rely on manual work. Processing process is being performed.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a method for attaching a polarizing plate for a liquid crystal display device and a process for reworking the polarizing plate. To provide a polarizing plate attaching device for a liquid crystal display device and a polarizing plate reworking device capable of preventing the generation of static electricity, simultaneously performing the heating and pressurizing steps of the polarizing plate, and greatly improving the overall product productivity. It is.

Still another object of the present invention is to automate a polarizing plate reworking process, avoid mistakes by an operator, inflow of foreign substances between the polarizing plate and the liquid crystal panel, generation of bubbles, breakage of the liquid crystal panel, and the like. To prevent a variety of accidents.

[0031]

In order to achieve the above object, the present invention provides a liquid crystal panel supply unit for sequentially supplying individual liquid crystal panels, and a polarizing plate supply unit for sequentially supplying individual polarizers corresponding to individual liquid crystal panels. The unit is placed at the intersection of the liquid crystal panel supply unit and the polarizer supply unit, and the individual polarizers supplied from the polarizer supply unit are attached one-to-one to the individual liquid crystal panels supplied from the liquid crystal panel supply unit A liquid crystal panel transfer jig that moves left and right by an external force while gripping the individual liquid crystal panel;
It is arranged below the LCD panel transfer jig while holding the individual polarizer, and when the LCD panel transfer jig stops, it is tilted at a certain angle by external force, and one side edge of the individual polarizer is moved to one side of the individual LCD panel. A polarizing plate aligning jig to be aligned with the edge, and an individual polarizing plate mounted on the end of the polarizing plate aligning jig, pushing the individual polarizing plate toward the individual liquid crystal panel when the liquid crystal panel transfer jig moves, and heating the individual polarizing plate. And a roll unit for pressing an individual polarizing plate.

This roll unit is composed of a fixed bracket attached to the end of a polarizing plate alignment jig, a heating roller rotatably mounted on the fixed bracket and applying heat of a certain temperature to the individual polarizing plates, and a fixed bracket. The eccentricity prevention roller, which is rotatably mounted and rotates at the same speed in contact with the heating roller and presses the outer peripheral surface of the heating roller to prevent the inclination of the heating roller, and the heating roller and the eccentricity, which are rotatably mounted on the fixed bracket And an adhesive-coated roller that rotates at the same speed in communication with the prevention roller and coats the individual polarizers with a fixed amount of adhesive.

Here, the heating roller, the eccentricity preventing roller, and the adhesive-coated roller are pushed up at once by raising the polarizing plate alignment jig, so that the individual polarizing plates can be uniformly pressed.

The heating roller comprises a combination of a shaft having a through-groove formed therein, a heating rod inserted into the through-groove, and an antistatic roll wound around the outer peripheral surface of the shaft.
The antistatic roll is made of super heat resistant silicon.

This super heat resistant silicon has an electric resistance value of 10 ⁸
Ω to ^{10 10} Ω, and the hardness is sh
Preferably, it is in the range of from 40 ° to more than 60 °.

The present invention also provides a first step of supplying an individual liquid crystal panel to a polarizing plate attaching unit using a liquid crystal panel supplying unit, and a method of attaching an individual polarizing plate to the polarizing plate attaching unit using a polarizing plate supplying unit. And a third step of attaching the individual polarizing plates to the individual liquid crystal panels in a one-to-one correspondence using a polarizing plate attaching unit, and the third step includes using a liquid crystal panel transfer jig. When the liquid crystal panel transfer jig is stopped, the liquid crystal panel transfer jig is stopped above the polarizing plate alignment jig. The liquid crystal panel and the individual polarizing plate are bonded together at one edge, and the polarizing plate alignment jig is tilted so that a certain amount of pressure is applied to the individual liquid crystal panel. Move By rotating the roll unit causes, while pushing the individual polarizing plate to the individual liquid crystal panel side, a liquid crystal display device for a polarizing plate attached method characterized by including the steps of heating and pressurizing the individual polarizer.

Here, the liquid crystal panel transfer jig is 1.1 cm /
It is preferable to move at a speed of s to 1.3 cm / s, and the polarizing plate alignment jig is preferably inclined at an angle of 10 ° to 30 ° with respect to the liquid crystal panel transfer jig.

The roll unit has 50 individual polarizing plates.
It is preferable to heat at a temperature of from 70 ° C to 70 ° C and pressurize at from 1.5 bar to 3 bar.

Further, according to the present invention, there is provided a reprocessing liquid crystal panel transfer jig which is moved to the left and right by an external force while holding a stage and a liquid crystal panel to be reprocessed which is disposed at a first point of the stage and on which a printed circuit board is mounted. And the reworking liquid crystal panel transfer jig, which is disposed at the second point of the stage corresponding to the second point, grips the reworking polarizing plate, and moves to the second point side. When the liquid crystal panel transfer jig is located at the top of the liquid crystal panel transfer jig and stops at the second point, the liquid crystal panel transfer jig is inclined at a certain angle toward the rework liquid crystal panel transfer jig, and one side edge of the rework polarizing plate. Polarizing plate alignment jig that aligns the LCD with one side edge of the liquid crystal panel to be reprocessed, and a liquid crystal panel for reprocessing arranged between the reprocessing liquid crystal panel transfer jig and the polarizing plate alignment jig for reprocessing Transfer jig for rework When moving in the opposite direction of the optical plate alignment jig, a reworking roll unit for pushing the reworking polarizing plate toward the liquid crystal panel to be reworked by rotating operation and heating and pressing the reworking polarizing plate is included. This is a polarizing plate reworking device for a liquid crystal display device.

Further, according to the present invention, the rework roll unit is built in the fixed frame placed on the stage and the bottom of the stage, and is integrally connected to the fixed frame.
An elevating cylinder that moves the fixed frame up and down, a heating roller for rework that is rotatably mounted on the fixed frame and applies heat at a constant temperature to the polarizing plate for rework, and a rotatable mount that is mounted on the fixed frame and rotatable for reprocessing The reworking eccentricity prevention roller, which rotates at the same speed in contact with the heating roller and presses the outer peripheral surface of the reworking heating roller to prevent the inclination of the reworking heating roller, and is rotatably mounted on the fixed frame. And a rework adhesive coating roller which rotates at the same speed in contact with the rework heating roller and the rework eccentricity prevention roller and coats a fixed amount of adhesive on the rework polarizing plate. This is a polarizing plate reworking device for a liquid crystal display device.

Here, the reworking heating roller, the reworking eccentricity preventing roller and the reworking adhesive-coated roller are depressed at once by lowering the elevating cylinder to press the reworking polarizing plate constantly.

The reworking heating roller includes a reworking shaft having a through-groove formed therein, a reworking heating rod inserted in the through-groove, and a reworking shaft wound around the outer periphery of the reworking shaft. It consists of a combination of antistatic rolls, and is preferably made of super heat resistant silicon.

This super heat resistant silicon has an electric resistance value of 10 ⁸
Ω to ^{10 10} Ω, hardness is less than 40 ° to short
It is preferably e60 °.

Further, the present invention provides a first step of aligning a liquid crystal panel to be reworked on which a printed circuit board is mounted on a liquid crystal panel transfer jig for reworking, and a reworking process on a polarizing plate alignment jig for reworking. And a tertiary process of attaching the rework polarizing plate to the liquid crystal panel to be reworked one-to-one. The tertiary process includes a jig for transferring the rework liquid crystal panel. Is moved to the rework polarizing plate alignment jig side, and the rework polarizing plate alignment jig is lifted. When the rework LCD panel transfer jig stops, the rework polarizing plate alignment jig is stopped. Turn the reversing polarizing plate alignment jig so that the liquid crystal panel to be reworked and one side edge of the reworking polarizing plate are stuck together, and move the reworking liquid crystal panel transfer jig to the reworking polarizing plate. Move in the opposite direction of the plate alignment jig and rework Rotating the rework roll unit so that the polarizer is pushed into the liquid crystal panel to be reworked, heating the rework polarizer, and simultaneously holding down the rework roll unit and pressing the rework polarizer And a method for reworking a polarizing plate for a liquid crystal display device.

Here, the liquid crystal panel transfer jig for rework is as follows.
It is preferable to move at a speed of 1 cm / s to 1.3 cm / s, and the rework polarizing plate alignment jig has an angle of 10 ° to 30 ° with respect to the rework liquid crystal panel transfer jig. It is preferable to make the inclination.

The reworking roll unit heats the reworking polarizing plate at a temperature of 50 ° C. to 70 ° C. and generates 1.5 bar.
It is preferred to pressurize at ~ 3 bar.

When the operation of such a roll unit proceeds for a certain period of time, each rework polarizing plate is pressed to an appropriate size by the pressing and heating process of the rework roll unit. As a result, the reworking polarizing plate is stably attached to each liquid crystal panel where the attachment of the new polarizing plate is required.

In the present invention, as described above,
A part of the roll unit that substantially heats and presses individual polarizing plates and rework polarizing plates, etc., is equipped with an antistatic ring whose antistatic treatment is completed, and the charge rate of the roll unit is similar to that of each polarizing plate In this way, the roll unit and each polarizing plate are blocked so as not to form an unnecessary charging relationship, so that no static electricity is generated between the polarizing plate and the liquid crystal panel during the polarizing plate attaching process or the polarizing plate reworking process. To do.

Further, in the present invention, as described above, when the polarizing plate attaching step or the polarizing plate reworking step is performed using the roll unit, the heating and pressurizing steps of the polarizing plate are simultaneously performed. Through this, each polarizing plate can maintain a stable adhered state without additionally performing a polarizing plate heating / pressing process, thereby greatly improving the overall product productivity.

Further, as described above, the roll unit for reworking is disposed above the liquid crystal panel to be reworked, and the reworking process of the polarizing plate is automatically advanced through the roll unit. Various process accidents can be prevented.

Therefore, according to the present invention, in the production line, problems such as generation of static electricity, reduction in productivity, occurrence of a process accident, etc. can be solved in advance through the various alternative means mentioned above. There is an advantage that processing steps and the like can be performed more stably.

[0052]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, the apparatus 100 for attaching a polarizing plate according to one embodiment of the present invention generally comprises a combination of a liquid crystal panel supply unit 10, a polarizing plate supply unit 20, and a polarizing plate attachment unit 30.

At this time, the liquid crystal panel supply unit 10
Plays a role of supplying the individual liquid crystal panel 1 having undergone a series of pre-processing steps, for example, the cleaning step, to the polarizing plate attaching unit 30. The polarizing plate supply unit 20 comprises an individual polarizing plate corresponding to the liquid crystal panel supply unit 10. 2 is supplied to the polarizing plate attaching unit 30.

Here, the polarizing plate attaching unit 30 is arranged at the intersection of the liquid crystal panel supply unit 10 and the polarizing plate supply unit 20, and separates the individual polarizing plate 2 supplied from the polarizing plate supply unit 20 into the liquid crystal panel. Supply unit 10
In a one-to-one correspondence with the individual liquid crystal panel 1 supplied from the computer.

At this time, as shown in the figure, the liquid crystal panel supply unit 10 is provided with a main body 11, stations 14 and 18 arranged on the main body 11, for example, in a line, and an upper portion of the stations 14 and 18. In combination with the liquid crystal panel carrying jig 13, the individual liquid crystal panels 1 are gripped and carried one by one in the folded state.

In this case, the stations 14 and 18 are provided with a large number of rolling bars 17 so that the individual liquid crystal panels 1 to be carried can be quickly aligned.
Since the liquid crystal panel carrying jig 13 has a plurality of vacuum suction holes (not shown), the liquid crystal panel 1 which needs to be carried can be stably fixed to the lower surface thereof.

The number, structure, and the like of the stations 14, 18 and the liquid crystal panel carrying jig 13 can be variously changed according to the situation of the production line.

Here, a handling arm 12 is disposed above the liquid crystal panel carrying jig 13, and the handling arm 12 has one end fixed to the guide rail 101 so as to be movable. By holding the liquid crystal panel carrying jig 13, the individual liquid crystal panel 1 on which the series of pre-processing steps has been completed is quickly conveyed to the above-mentioned polarizing plate attaching unit 30. In this case, the vacuum pipe 19 arranged on the handling arm 12 forms a low-pressure vacuum through the vacuum suction hole of the liquid crystal panel carrying jig 13 so that the liquid crystal panel arranged on the lower surface of the liquid crystal panel carrying jig 13 is stabilized. To maintain the fixed state.

At this time, the cleaning film 16 is placed between the stations 14 and 18 by the rollers 15.
The cleaning film 16 is located on the moving path of the liquid crystal panel carrying jig 13. Cleaning film 16 is handling arm 1
When the liquid crystal panel carrying jig 13 moves forward toward the polarizing plate attaching unit 30 by the handling of 2, the liquid crystal panel carrying jig 13 comes into contact with the individual liquid crystal panel 1 placed on the lower surface of the liquid crystal panel carrying jig 13 so that the individual It plays a role of enabling foreign substances and chemicals, etc., which are normally present in the liquid crystal panel 1 to be removed in advance before a full-scale polarizing plate attaching step.

Here, the station 18 plays a role of finally aligning the individual liquid crystal panels 1 so that a liquid crystal panel transfer jig 32 described later can handle the individual liquid crystal panels 1 smoothly.

On the other hand, as shown in the figure, the polarizing plate supply unit 20 includes a main body 21 and a plurality of stations 24 and 26 placed on the main body 21, similarly to the liquid crystal panel supply unit 10 mentioned above. , This station 24,2
6, handling arms 22, 25,
27. Of course, this station 2
As in the case of the liquid crystal panel supply unit 10 described above, the arrangement numbers, structures, and the like of the handling arms 22, 26 and the handling arms 22, 25, 27 can be variously modified according to the situation of the production line.

Normally, the individual polarizers 2 attached to the liquid crystal panel 1 are loaded at the entrance of the apparatus at the beginning of the process, so that they are ready to be put into the process.

At this time, the handling arm 22 plays a role of individually separating the loaded polarizing plates in a state where the handling arm 22 is disposed above the loaded polarizing plate. The handling arm 22 uses, for example, four hands 22a to cause the polarizing plate 2 loaded on the top of the polarizing plate load to flow to the left and right, so that it is located below the polarizing plate mounted on the top. It is possible to prevent an accident in which a large number of polarizing plates adhere and are put into the process at once.

At this time, a cleaning roll 23 is disposed between the station 24 and the handling arm 22. The cleaning roll 23 allows the polarizing plate 2 to pass through its own gap to remove extraneous substances existing on the surface of the individual polarizing plate 2 so that the individual polarizing plate 2 can adhere to the liquid crystal panel 1 in a basic clean state. To be able to maintain.

Here, the station 24 plays a role of temporarily aligning the individual polarizing plates 2 so that the handling arm 25 can smoothly handle the individual polarizing plates 2 passed through the cleaning roll 23 described above. In this case, the alignment state of the individual polarizing plates 2 is determined by the handling arm 25.
, The handling arm 25 can use the hand 29 to move the individual polarizing plate 2 toward the station 26 more quickly.

At this time, the station 26 is
8, the individual polarizing plates 2 are finally aligned, and the handling arm 27 moves the aligned individual polarizing plates 2 toward the polarizing plate attaching unit 30 mentioned above.

On the other hand, as shown in the figure, the polarizing plate attachment unit 30 which forms the gist of the present embodiment is provided with a liquid crystal panel transfer jig 3.
2, a combination of a polarizing plate alignment jig 33 disposed below the liquid crystal panel transfer jig 32 and a roll unit 40 attached to an end of the polarizing plate alignment jig 33.

At this time, the liquid crystal panel transfer jig 32 performs an operation of moving left and right while holding the individual liquid crystal panels 1 aligned with the station 18 described above. By providing a large number of vacuum suction holes on its lower surface, the liquid crystal panel 1 to be carried can be fixed more stably.

Here, a handling arm 31 is disposed above the liquid crystal panel transfer jig 32. The handling arm 31 has one end on one side thereof on the guide rail 1.
By holding the liquid crystal panel transfer jig 32 in a state where the liquid crystal panel transfer jig 32 is fixed so that the liquid crystal panel
Can move freely from side to side. In this case, the vacuum pipe 34 arranged on the handling arm 31 forms a low-pressure vacuum through the vacuum suction hole of the liquid crystal panel transfer jig 32 so that the liquid crystal panel 1 arranged on the lower surface of the liquid crystal panel transfer jig 32 is formed. To maintain a more stable fixed state.

At this time, the polarizing plate alignment jig 33 grips the individual polarizing plate 2 after being supplied with the individual polarizing plate 2 attached to the liquid crystal panel 1 by the handling arm 27. In this case, the polarizing plate The alignment jig 33 has a plurality of vacuum suction holes 35 on its upper surface, for example, similar to the liquid crystal panel transfer jig 32, so that each individual polarizing plate 2 can be stably held.

Here, as shown in FIG. 2, the polarizing plate alignment jig 33 includes a liquid crystal panel transfer jig 32 and the individual liquid crystal panel 1.
For example, when moving to the right and stopping above itself while holding the individual polarizing plate 2, the individual polarizing plate 2 held by itself is tilted by a certain angle toward the liquid crystal panel transfer jig 32 by external force.
Is aligned with one edge of the individual liquid crystal panel 1 held by the liquid crystal panel transfer jig 32.

At this time, the cylinder (not shown) for freely tilting the polarizing plate alignment jig 33 is mounted on the base plate 36 mounted on the bottom of the polarizing plate alignment jig 33, which is mentioned earlier. It guides the individual polarizing plate 2 and the individual liquid crystal panel 1 to be more smoothly aligned.

Here, the roll unit 40 attached to the end of the polarizing plate aligning jig 33 starts a series of operations when the stopped liquid crystal panel transfer jig 32 starts running above the polarizing plate aligning jig 33. By performing the rotation operation, it plays a role of pushing the individual polarizing plate 2 toward the individual liquid crystal panel 1.

At this time, as shown in the figure, the roll unit 40 includes a fixing bracket 41 mounted on the end of the polarizing plate alignment jig, a heating roller 46 rotatably mounted on the fixing bracket 41, and an eccentricity preventing roller. 47, a combination of an adhesive-coated roller 42 and the like.

When the roll unit 40 performs a series of rotating operations to push the individual polarizing plate 2 toward the individual liquid crystal panel 1, the heating roller 46 makes a strong contact with the individual polarizing plate 2, and at the same time, makes contact with the individual polarizing plate 2. A constant temperature heat is applied to the plate 2.

The eccentricity preventing roller 47 is rotated at the same speed as the heating roller 46 in a state of being in contact with the heating roller 46 to push down the outer peripheral surface of the heating roller 46.
The phenomenon that the heating roller 46 tilts left and right during the rotation operation can be prevented.

The adhesive-coated roller 42 is connected to the heating roller 46 and the eccentricity preventing roller 47 while rotating at the same speed as that of the heating roller 46 and the eccentricity preventing roller 47. It plays a role of coating a certain amount of adhesive on the individual polarizing plate 2 to be pushed inward.

At this time, the heating roller 46 is composed of a shaft 44 having a through-groove formed therein, and the electricity-supply roller 4 which is taken into the outer peripheral surface of the shaft 44 and forms the outermost peripheral portion of the heating roller.
3 in combination.

The antistatic roll 43 has a resistance of 10 ⁸ Ω to 10 Ω.
It is made of super heat resistant silicon which has been subjected to antistatic treatment so as to have an electric resistance of ¹⁰ Ω. In this case, the heating roller 43 can maintain a charging rate similar to the charging rate of the individual polarizing plate 2 in contact with itself.

As is well known, when objects having the same charge rate come into contact with each other, no separate charging relationship is formed between the two objects, and as a result, unnecessary static electricity is not generated between the two objects.

With these matters as technical background, in the present invention, the outermost peripheral portion of the heating roller 46 has a resistance of 10 ⁸ Ω to 10 Ω.
^An antistatic roll having been subjected to antistatic treatment so as to have an electric resistance of ¹⁰ Ω is disposed so that the heating roller 46 does not form an unnecessary charging relationship with the individual polarizing plate 2 in contact with itself. When the polarizing plate attaching process is performed, unnecessary static electricity is not generated between the polarizing plate 2 and the heating roller 46. In this case, in the production line, for example, the problem that the thin film transistor formed on the liquid crystal panel 1 is damaged by static electricity can be solved in advance.

In the conventional case, when the polarizing plate fixed on the polarizing plate fixing jig is transferred to the liquid crystal panel, the polarizing plate is brought into contact with the guide roller, and the polarizing plate after the completion of the polarizing plate attaching step is attached to the polarizing plate. Inevitably generates a large amount of static electricity,
As a result, there is a problem that the thin film transistor formed on the liquid crystal panel is damaged in the production line.

However, according to the present embodiment, as described above, the outermost peripheral portion of the heating roller 46 which has a necessary contact relationship with the individual polarizing plate 2 has an electric resistance value of 10 ⁸ Ω to 10 ¹⁰ Ω. In this way, the antistatic roll 43, which has been subjected to the antistatic treatment, is disposed, and through this, the heating roller 46 and the individual polarizer 2 are blocked so as not to form an unnecessary charging relationship. Can easily solve the problem that static electricity is generated.

At this time, according to the present embodiment, by further disposing an ionization device (not shown) around the roll unit 40, the possibility of generating static electricity can be more effectively shut off.

Here, the super heat resistant silicon forming the antistatic roll 43 maintains a hardness corresponding to, for example, Shore 40 ° to Shore 60 °.

As described above, the antistatic roll 43 is disposed at the outermost periphery of the heating roller 46 and has a strong contact relationship with the individual polarizing plate 2 when the roll unit 40 rotates.
The hardness of the antistatic roll 43 acts as an important factor in determining whether or not the polarizing plate 2 is damaged.

If the super heat resistant silicon forming the antistatic roll 43 has a hardness greater than Shore 60 °,
If the antistatic roll 43 is too rigid, for example, a problem that the polarizing plate 2 is unnecessarily damaged may occur.

When the super heat-resistant silicon constituting the antistatic roll 43 has a hardness of less than Shore 40 °, the antistatic roll 43 becomes too brittle, and the roll unit 40 connects the individual polarizing plate 2 to the individual liquid crystal panel 1. The problem that it cannot be pushed at all into a person may arise.

In this embodiment, in consideration of such problems in advance, the occurrence of the above-described problems is prevented by maintaining the hardness of the super heat resistant silicon forming the antistatic roll 43 at about Shore 40 ° to Shore 60 °. it can.

At this time, as shown in FIG.
A heating rod 45 having a heat radiation ability is inserted into the through groove.

In this state, for example, when the roll unit 40 performs a series of rotating operations and the individual polarizing plate 2 held by the polarizing plate alignment jig 33 is pushed toward the individual liquid crystal panel 1 and rises, The roller 46 is the corresponding individual polarizing plate 2
To a constant temperature.

At this time, as shown in FIG. 3, the heating roller 46, the eccentricity prevention roller 47, the adhesive coating roller 42 and the like are all mounted on the fixed bracket 41 so as to be freely rotatable.
Since the fixing bracket 41 is fixed to the end of the polarizing plate alignment jig 33, the polarizing plate alignment jig 33 is
Tilted at a certain angle by the action of the cylinder attached to 6,
As a result, when the fixing bracket 41 is pushed up, the respective heating rollers 46, the eccentricity preventing rollers 47, the adhesive coating roller 42 and the like are pushed up at once. As a result, the heating roller 46, the eccentricity prevention roller 47, the adhesive coating roller 42, and the like can uniformly press the individual polarizing plate 2 pushed toward the individual liquid crystal panel 1.

As mentioned above, since the heating roller 46 can also apply heat of a certain temperature to the individual polarizing plates 2,
A certain amount of heat and pressure are simultaneously applied to the individual polarizing plate 2 pushed toward the individual liquid crystal panel 1 by the rising process of the fixing bracket 41 and the heating process of the heating roller 46.

In the conventional case, when the entire process of attaching the primary polarizer is completed, the liquid crystal panel is mounted in the heating / pressurizing chamber, and the polarizer is heated and pressurized. A step of removing existing bubbles was performed. However, in this case, there is an advantage that the display quality of the liquid crystal panel can be improved, but on the other hand, every time the polarizing plate attaching process is performed, the polarizing plate heating / pressing process must be further performed, so that product productivity is increased. Is greatly reduced.

In comparison with the prior art, according to the present embodiment, the heating roller 46 can have a heat generating capability by inserting the heating rod 45, and the eccentricity prevention roller 47 including the heating roller 46, the adhesive coating roller 42, and the like. Can maintain a certain level of pressurizing ability by the raising action of the fixing bracket 41, so that the polarizing plate 2
The heating and pressurizing process can proceed. as a result,
Even if the polarizing plate heating / pressing step is not performed again, the polarizing plate 2
In addition, all the bubbles existing between the liquid crystal panels 1 can be removed, so that the effect of greatly improving the productivity of the product as a whole can be obtained.

On the other hand, as shown in FIG. 1 referred to above, a rotating arm 50 is further disposed downstream of the polarizing plate attaching unit 30. After the attachment of the individual polarizing plate 2 to one side surface of the individual liquid crystal panel 1 is completed by the operation of the liquid crystal panel supply unit 10, the polarizing plate supply unit 20, the polarizing plate attaching unit 30, and the like, the rotating arm 50 By turning the panel 1 over, for example, by 180 °, it plays a role of guiding the liquid crystal panel 1 so that a series of polarizing plate attaching steps can be performed on the surface of the liquid crystal panel 1 where the polarizing plate is not attached.

In this case, a unit having the same configuration as the liquid crystal panel supply unit 10, the polarizing plate supply unit 20, the polarizing plate attaching unit 30 and the like is further disposed downstream of the rotary arm 50, and this unit is turned upside down by 180 °. The above-described process is similarly performed on the liquid crystal panel 1 in the state described above, so that the individual polarizing plate is attached to the other side of the individual liquid crystal panel 1 where the individual polarizing plate 2 is not attached.

Hereinafter, a method of attaching a polarizing plate using a polarizing plate attaching apparatus for a liquid crystal display according to an embodiment of the present invention will be described in detail with reference to the above description and drawings.

As shown in FIG. 4, in the production line, first, a step of supplying the individual liquid crystal panel 1 to the polarizing plate attaching unit 30 using the liquid crystal panel supply unit 10 is performed (step S10). In this case, as shown in FIG. 1 described above, when the individual liquid crystal panel 1 for performing a pretreatment step, for example, a series of cleaning steps arrives at the station, the station 1
Reference numeral 4 drives the rolling bar 17 to temporarily align the liquid crystal panel 1.

In this state, the liquid crystal panel carrying jig 1
3 holds the individual liquid crystal panel 1 and
To the station 18. In this case, the handling arm 12 handles the liquid crystal panel carrying jig 13 with one end thereof fixed, thereby guiding the carrying process of the liquid crystal panel carrying jig 13 to proceed more smoothly. .

When the liquid crystal panel carrying jig 13 moves forward, the cleaning film 16 comes into contact with the individual liquid crystal panel 1 so that foreign substances and chemicals which are resident on the individual liquid crystal panel 1 can be fully attached to the polarizing plate. It can be removed before the process.

Subsequently, the station 18 drives the rolling bar 17 to finally align the individual liquid crystal panels 1 at an appropriate position, thereby guiding the liquid crystal panel transfer jig 32 to handle the individual liquid crystal panels 1 smoothly. I do.

On the other hand, in the production line, the individual polarizing plate 2 is connected to the polarizing plate attaching unit 3 using the polarizing plate supply unit 20.
The process of supplying to zero is advanced (step S20). Such a polarizing plate supply process is performed at a time substantially similar to the liquid crystal panel supply process described above.

In this case, the handling arm 22 uses the hand 22a to flow the polarizing plate mounted on the uppermost portion of the polarizing plate loaded material left and right, thereby separating only the polarizing plate 2 mounted on the uppermost portion. .

Subsequently, the cleaning roll 23 passes through the individual polarizing plate 2 separated by the handling arm 22 to remove foreign substances that are normally present on the surface of the individual polarizing plate 2.

Subsequently, the station 24 is provided with the individual polarizing plate 2.
Is performed, and the handling arm 25 uses the hand 29 to move the individual polarizer 2 toward the station 26.

Thereafter, the station 26 proceeds to realign the individual polarizers 2 using the stoppers 28, and the handling arm 27 moves the aligned individual polarizers 2 toward the polarizer attaching unit 30. Perform

On the other hand, the individual liquid crystal panel supplying step (step S10) and the individual polarizing plate supplying step (step S20) mentioned above.
After finishing to some extent, the production line proceeds with the step of attaching the individual polarizing plates 2 to the individual liquid crystal panels 1 in one-to-one correspondence (step S30).

First, in the production line, the individual liquid crystal panels 1 arranged in the station 18 are gripped by using the liquid crystal panel transfer jig 32, and then, as shown in FIG. It is transferred to the upper side of the polarizing plate alignment jig 33 (step S31). In this case, the polarizing plate alignment jig 33 maintains the state of being integrally placed on the base plate 36 without tilting. In the drawing, the polarizing plate alignment jig 33 is shown in an inclined shape for convenience.

Subsequently, in the production line, when the individual liquid crystal panel 1 transferred to the polarizing plate alignment jig 33 reaches the upper portion of the polarizing plate alignment jig 33 accurately, the handler arm 31 is controlled to control the liquid crystal panel. The transfer jig 32 is replaced with a polarizing plate alignment jig 33.
(Step S32). As a result, the liquid crystal panel 1 gripped by the liquid crystal panel transfer jig 32 has a structure facing the polarizing plate 2 gripped by the polarizing plate alignment jig 33.

In this state, in the production line, as shown in FIG. 3 described above, the cylinder mounted on the base plate 36 is driven to tilt the polarizing plate alignment jig 33 so that one side edge of the individual polarizing plate 2 is formed. Are attached to one edge of the individual liquid crystal panel 1 (step S33).

At this time, the heating roller 46 forming the roll unit 40, the eccentricity preventing roller 47, the adhesive coating roller 4
2 and the like are rotatably mounted on a fixed bracket 41. Since the fixed bracket 41 is fixed to the end of the polarizing plate alignment jig 33, the polarizing plate alignment jig 33 is mounted on the base plate 36. The fixed bracket 41 is pushed up by tilting at a fixed angle by the action of the cylinder. As a result, each of the heating rollers 46, the eccentricity preventing rollers 47, the adhesive coating roller 42, and the like are pushed up at one time, and eventually, each of the heating rollers 46, the eccentricity preventing roller 47, the adhesive coating roller 42, and the like are turned on the individual liquid crystal panel 1. The individual polarizing plate 2 pushed upward is constantly pressed.

In this state, in the production line, by controlling the handler arm 31, the liquid crystal panel transfer jig 32 is moved, for example, to the right, and the heating roller 46 and the eccentricity preventing roller 4 constituting the roll unit 40 are moved.
7. The process of pressing the individual polarizing plate 2 toward the liquid crystal panel 1 by rotating the adhesive coating roller 42 and the like proceeds (step S).
34).

At this time, the polarizing plate alignment jig 33 is adjusted to the traveling speed of the liquid crystal panel transfer jig 32 in accordance with the traveling speed of the liquid crystal panel transfer jig 32.
By sequentially releasing the vacuum set to 5, the individual polarizing plate 2 is smoothly pushed into the individual liquid crystal panel 1.

As described above, the heating roller 46 can perform a series of heat-generating functions by mounting the heating rod 45 having heat radiating ability in the through groove of the shaft 44.
6, the eccentricity prevention roller 47, the adhesive-coated roller 42, and the like can be inclined by the polarizing plate alignment jig 33 to perform a series of pressing functions. When a certain amount of heat and pressure are simultaneously applied by the raising process of the fixing bracket 41 and the heat generation process of the heating roller 46, and when the process of attaching the polarizing plate according to the present embodiment is completed, the individual polarizing plate 2 is separated as in the related art. Can be stably attached to the individual liquid crystal panel 1 without going through the heating / pressing process.

Thereafter, in the production line, an individual liquid crystal panel having an individual liquid crystal panel adhered to one side surface is used by using a rotating arm 50 disposed after the polarizing plate attaching unit 30.
After turning over at an angle of 80 °, the above-described steps are performed in the same manner, so that an individual polarizing plate is attached to the other side of the individual liquid crystal panel.

In carrying out the present embodiment, since the individual polarizing plate 2 is pushed up in accordance with the movement of the individual liquid crystal panel 1, the moving speed of the liquid crystal panel transfer jig 32 is adjusted to the a-line accuracy of the individual polarizing plate 2. Acts as an important factor in determining If the speed of the liquid crystal panel transfer jig 32 is too fast or too slow, there is a problem that the individual polarizing plate 2 is not accurately aligned with the individual liquid crystal panel 1.

Table 1 below shows the correlation between the moving speed of the liquid crystal panel transfer jig 32 and the state of adherence of the polarizing plate according to the result, which has been clarified by the experimental results of the present applicant.

As shown in Table 1, if the moving speed of the liquid crystal panel transfer jig 32 is maintained at a value lower than 1.1 cm / s to 1.3 cm / s, for example, a value of 0.9 cm / s, A large amount of unevenness occurs between the individual polarizing plate 2 and the individual liquid crystal panel 1 for which the above has been completed.

[0121]

[Table 1] On the contrary, the moving speed of the liquid crystal panel transfer jig 32 is 1.1c.
m / s to a value faster than 1.3 cm / s, for example, 1.4 cm /
When the value of s, 1.5 cm / s, etc. is maintained, a large amount of air bubbles are generated between the attached individual polarizing plate 2 and the individual liquid crystal panel 1 and the polarizing plate 2 is twisted to the left or right. The problem occurs.

In consideration of such a problem, in the present embodiment, the moving speed of the liquid crystal panel transfer jig 32 is set to, for example, 1.1.
By maintaining the value in the range of cm / s to 1.3 cm / s, the individual polarizing plate 2 to which the adhesion has been completed is accurately aligned by the individual liquid crystal panel 1.

In implementing this embodiment, the individual polarizing plate 2 is pushed toward the individual liquid crystal panel 1 in accordance with the inclination angle of the polarizing plate aligning jig 33.
The inclination angle of 3 acts as an important factor that determines whether or not the individual polarizing plates 2 can be bonded and the alignment accuracy of the individual polarizing plates 2. If the inclination angle of the polarizing plate alignment jig 33 is too large or too small, problems such as that the individual polarizing plate 2 is not adhered to the individual liquid crystal panel 1 or that the alignment is not accurately performed occur.

Table 2 below shows the correlation between the angle of inclination of the polarizing plate alignment jig 33 and the state of adhesion of the polarizing plate, as revealed by the experimental results of the present applicant.

[0125]

[Table 2] As shown in Table 2, when the inclination angle of the polarizing plate alignment jig 33 is maintained at a value smaller than 15 ° to 30 °, for example, a value of 10 °, the individual polarizing plate 2 and the individual liquid crystal to which the attachment is completed. A large amount of air bubbles are generated between the panels 1 or the individual polarizing plates 2
However, there is a problem that the liquid crystal panel is not adhered to the individual liquid crystal panel 1 at all.

Conversely, even when the inclination angle of the polarizing plate alignment jig 33 is maintained at a value larger than 15 ° to 30 °, for example, 35 °, the problem that the individual polarizing plate 2 is not adhered to the individual liquid crystal panel 1 at all. A point occurs.

In consideration of such problems, in the present embodiment, by maintaining the inclination angle of the polarizing plate alignment jig 33 at 15 ° to 30 °, the adhesion safety of the individual polarizing plate 2 is optimized. .

Further, in carrying out the present embodiment, since the generation of bubbles in the individual polarizing plate 2 can be suppressed by the heating process of the heating roller 46, the heating temperature of the heating roller 46 determines the presence or absence of bubbles in the individual polarizing plate. Acts as an important factor. If the heating temperature of the heating roller 46 is too low or too high, the individual polarizing plate 2 causes problems such as generating a large amount of bubbles and causing deformation.

Table 3 below shows the correlation between the heating temperature of the heating roller 46 and the presence / absence of bubbles in the individual polarizing plate 2 clarified by experimental results of the present applicant.
In this experiment, the pressure intensity of the roll unit 40 was 2
Fixed with bar.

[0130]

[Table 3] As shown in Table 3, when the heating temperature of the heating roller 46 is maintained at a value lower than 50 ° C. to 70 ° C., for example, a value of 30 ° C., 40 ° C., etc. Air bubbles are generated between the individual liquid crystal panels 1.

On the other hand, when the heating temperature of the heating roller 46 is 50
When a value higher than 0 ° C. to 70 ° C., for example, a value of 80 ° C. is maintained, the individual polarizing plate 2 on which the attachment is completed is deformed.

In consideration of such a problem, in the present embodiment, by keeping the heating temperature of the heating roller 46 at 50 ° C. to 70 ° C., generation of bubbles in the individual polarizing plate 2 can be suppressed to a minimum. it can.

Further, in carrying out the present embodiment, the bonding state between the individual polarizing plate 2 and the individual liquid crystal panel 1 can be reinforced by the pressing process of the roll unit 40. It functions as an important factor that determines the bonding safety of the individual polarizing plate 2. If the pressing strength of the roll unit 40 is too large or too small, the individual polarizing plate 2 is not firmly adhered to the individual liquid crystal panel 1, the individual polarizing plate 2 is pressed on the individual liquid crystal panel 1, Problems such as the individual liquid crystal panel 1 being damaged occur.

Table 4 below shows the correlation between the pressing strength of the roll unit 40 and the state of adhesion of the individual polarizers 2 clarified by experiments conducted by the present applicant. In this experiment, the heating temperature of the heating roller 46 was fixed at 50 ° C.

[0135]

[Table 4] As shown in Table 4, when the pressing strength of the roll unit 40 is maintained at a value smaller than 1.5 bar to 3.0 bar, for example, 1.0 bar, the individual polarizing plate 2 is pressed on the individual liquid crystal panel 1. Or generate bubbles.

On the other hand, the pressing strength of the roll unit 40 is set to a value larger than 1.5 bar to 3.0 bar, for example, 3.5.
When the bar is maintained at 4.0 bar or the like, the individual liquid crystal panel 1 may be damaged and cause problems such as generation of unevenness.

In consideration of such a problem, in this embodiment, the pressing strength of the roll unit 40 is set to 1.5 bar to
By maintaining it at about 3.0 bar, the adhesion safety of the individual polarizing plate 2 is optimized.

On the other hand, when the step of attaching the polarizing plate 2 is completed through the above-described steps, a series of printed circuit board attaching steps for attaching the printed circuit board to the liquid crystal panel 1 to which the polarizing plate 2 has been attached are performed in the production line. After that, when the attachment of the printed circuit board is completed, the process proceeds to a step of checking the attachment state of the polarizing plate 2 attached to the liquid crystal panel 1.

At this time, if the state of adhesion of the polarizing plate 2 is abnormal, the production line proceeds with a reworking process and performs a process of replacing the existing polarizing plate 2 with a new polarizing plate.

Here, as shown in FIG. 5, a polarizing plate reworking apparatus 200 according to another embodiment of the present invention
1 and one point of this stage 201, for example, stage 2
Liquid crystal panel transfer jig 6 for reprocessing arranged on the left side of 01
0 and another position of the stage 201, for example, a rework polarizing plate alignment jig 70 disposed on the right side of the stage 201.
And a rework roll unit 80 disposed between the rework liquid crystal panel transfer jig 60 and the rework polarizing plate alignment jig 70.

At this time, the liquid crystal panel transfer jig 6 for reworking
No. 0 performs an operation of moving left and right while holding the liquid crystal panel 3 to be reworked on which the printed circuit board 4 is mounted. In this case, a large number of reworking liquid crystal panel transfer jigs 60 are provided on its upper surface. By providing the vacuum suction hole 61, the liquid crystal panel 3 to be reworked can be more stably fixed.

Here, the liquid crystal panel transfer jig 60 for reworking is used.
A screw rod 203 is disposed at the bottom of the liquid crystal panel. The screw rod 203 is rotated quickly by the action of a motor in a state where the liquid crystal panel transfer jig 60 is sandwiched between the screw rod 203 and the screw rod 203. Transfer jig 60 is stage 2
01 so as to move smoothly to the left and right sides.

In this case, a pair of guide rails 201 are further disposed on both sides of the screw rod 203, and the guide rails 201 are reworked with both edges of the liquid crystal panel transfer jig 60 for rework sandwiched therebetween. To prevent the liquid crystal panel transfer jig 60 from flowing.

As a result, the reworking liquid crystal panel transfer jig 60 can maintain a stable running state without additional shaking while freely reciprocating to the left and right sides of the stage 201.

On the other hand, as shown in FIG. 6, the rework polarizing plate alignment jig 70 is attached to the rework target liquid crystal panel 3 held by the rework liquid crystal panel transfer jig 60 in a one-to-one manner. It plays a role of holding the rework polarizing plate 5. In this case, the rework polarizing plate alignment jig 70 has a plurality of vacuum suction holes 71 on its own upper surface, for example, similarly to the rework liquid crystal panel transfer jig 60, so that each rework polarizing plate 5
Can be held more stably.

At this time, the rework polarizing plate alignment jig 70 is driven by the control of the robot arm 91 drawn out of the control box 90. In this case, the robot arm 91 is connected to the rework liquid crystal panel as described above. For example, while the transfer jig 60 moves to the right side of the stage 201, the rework polarizing plate alignment jig 70 is lifted, and the rework polarizing plate alignment jig 70 is placed on the upper part of the rework liquid crystal panel transfer jig 60. Play the role of positioning.

As shown in FIG. 7, when the reworking liquid crystal panel transfer jig 60 is stopped below the reworking polarizing plate alignment jig 70, the robot arm operates as follows. Then, the rework polarizing plate alignment jig 70 is tilted at a fixed angle to play a role of aligning one edge of the rework polarizing plate 5 with one edge of the liquid crystal panel 1 to be reworked.

Here, as shown in the figure, the liquid crystal panel 3 to be reworked has a structure arranged on the stage 201, and the roll unit 80 for reworking is arranged above the liquid crystal panel 3 to be reworked. The structure.

In this case, the rework roll unit 80
When the reworking liquid crystal panel transfer jig 60 runs on its own bottom part in a reworking process of a polarizing plate described later, the reworking polarizing plate 5 performs a natural rotation operation, so that the reworking polarizing plate 5 becomes the reworking liquid crystal panel 3. And pressurizes it so that it is quickly pushed into

As described above, it is very important to arrange the liquid crystal panel 3 to be reworked below the rework roll unit 80 in order to achieve the present embodiment.

As described above, unlike the previous polarizing plate attaching process, the polarizing plate reworking process is performed after the liquid crystal panel and the printed circuit board are combined in one unit. When proceeding with the processing process, the problem of damage to the printed circuit board must be basically considered.

Without considering the problem of damage to the printed circuit board, for example, a method similar to the previous polarizing plate attaching process, that is, a method in which a liquid crystal panel is arranged on an upper part and a roll unit is arranged on a lower part, is used. When performing the processing step, even if the purpose of replacing the polarizing plate can be smoothly achieved, the printed circuit board mounted on the liquid crystal panel to be reworked may be sagged, thereby reducing the pressure of the roll unit. Problems such as damage to the printed circuit board occur in between.

Most of the conventional polarizing plate attaching apparatuses according to the prior art attach a polarizing plate by using a method in which a liquid crystal panel is arranged at an upper portion and a pressing device is arranged at a lower portion. Has not been able to easily automate the polarizing plate reworking process. As a result, it is impossible to avoid the risk of various accidents, such as foreign substances flowing between the rework polarizing plate and the liquid crystal panel to be reworked, bubbles being generated, and the liquid crystal panel being damaged. Inevitably, the polarizing plate reworking process had to be performed manually.

However, in another embodiment of the present invention, the liquid crystal panel 3 to be reworked is fully taken into consideration in consideration of such problems.
The rework roll unit 80 that substantially adheres the rework polarizing plate 5 to the upper part of the liquid crystal panel 3 to be reworked, and the printed circuit board 4 mounted on the liquid crystal panel 3 to be reworked based on this. Is able to maintain a stable storage state during the pressing process of the rework polarizing plate, thereby guiding the entire polarizing plate rework process to be performed automatically,
This can prevent the risk of accident occurrence.

At this time, as shown in the figure, the rework roll unit 80 is composed of a fixed frame 81 placed upright on the stage 201 and a rework heating roller 86 rotatably mounted on the fixed frame 81. , A rework adhesive coating roller 87, a rework eccentricity prevention roller 88, and the like.

Here, an elevating cylinder 82 is further built in the bottom of the stage 201.
Plays a role of raising and lowering the fixed frame 81 up and down by externally controlling a continuous up / down operation while being integrally connected to the fixed frame 81.

At this time, when the rework roll unit 80 performs a series of rotations to push the rework polarizing plate 5 toward the liquid crystal panel 3 to be reworked, the rework heating roller 86 is used. It plays a role of applying heat at a constant temperature to the rework polarizing plate 5 while strongly contacting the polarizing plate 5.

The reworking eccentricity preventing roller 88 is rotated at the same speed as the reworking heating roller 86 in a state of being in contact with the reworking heating roller 86, and the outer peripheral surface of the reworking heating roller 86. By pressing, the reworking heating roller 86 plays a role of preventing the phenomenon that the reworking heating roller 86 tilts left and right during the rotation operation. In this case, the reworking eccentricity prevention roller 86 is fixed to the fixed frame 81 by the support of the fixed piece 89.

The rework adhesive coating roller 87 is connected to a rework heating roller 86, a rework eccentricity prevention roller 88, and the like. While rotating at the same speed as the above, it plays a role of coating a fixed amount of adhesive on the rework polarizing plate 5 pushed toward the liquid crystal panel 3 to be reworked.

Here, as shown in FIG. 5 described above, the reworking heating roller 86 includes a reworking shaft 84 having a through-groove formed therein and a reworking shaft wound around the outer peripheral surface of the reworking shaft 84. It consists of a combination with a processing electricity control roll 85.

At this time, the reworking antistatic roll 85 is set at 10
It is made of super heat-resistant silicon which has been subjected to antistatic treatment so as to have an electric resistance of ⁸ Ω to ^{10 10} Ω. In this case, the rework heating roller 85 can maintain a charge rate similar to the charge rate of the rework polarizing plate 5 that comes into contact with itself.

In this case, the reworking heating roller 86 does not form an unnecessary charging relationship with the reworking polarizing plate 5, and as a result, when the reworking process of the polarizing plate is performed, the reworking polarizing plate 5 and the reworking polarizing plate 5 are not recharged. Unnecessary static electricity is not generated between the heating rollers 86 for use. Thereby, in the production line, for example, a problem that the thin film transistor formed on the liquid crystal panel 3 to be reworked is damaged by static electricity can be prevented.

At this time, in another embodiment of the present invention, the possibility of generating static electricity is more effectively shut off by further disposing an ionization device around the roll unit 86 for rework.

Here, the super heat-resistant silicon constituting the reworking antistatic roll 85 may be, for example, a short 40 ° to a short
Maintain a hardness corresponding to 60 °.

The reworking antistatic roll 85 is disposed at the outermost periphery of the reworking heating roller 86 and has a strong contact relationship with the reworking polarizing plate 5 when the reworking roll unit 80 rotates. In order to make the
Has an important factor in determining whether or not the rework polarizing plate 5 can be damaged.

If the hardness of the super heat-resistant silicon constituting the reworking antistatic roll 85 is larger than the Shore 60 °,
Since the rework antistatic roll 85 is too rigid, for example, there is a problem that the rework polarizing plate 5 is unnecessarily damaged.

If the hardness of the super heat-resistant silicon constituting the reworking antistatic roll 85 is less than 40 °, the reworking antistatic roll 85 is too brittle, so that the reworking polarizing plate 5 is used as the liquid crystal panel to be reworked. The problem which is not pushed at all into 3 can be induced.

In the present embodiment, in consideration of such a problem in advance, the hardness of the super heat-resistant silicon constituting the reworking antistatic roll 85 is maintained at about 40 ° to about 60 ° to solve the above-described problem. Prevent outbreaks.

At this time, as shown in the figure, a reworking heating rod 84 having heat radiation capability is mounted in the through groove of the reworking shaft 84. In this case, the reworking heating roller 86 can radiate heat at a constant temperature to the outside smoothly depending on whether or not the reworking heating rod 84 can radiate heat.

Here, as shown in the figure, the reworking heating roller 86, the reworking eccentricity prevention roller 88, the reworking adhesive coating roller 87, etc. are all rotatably mounted on the fixed frame 81. Since the fixed frame 81 can be moved up and down by the up / down operation of the lifting / lowering cylinder 82, when the fixed frame 81 is lowered by the action of the lifting / lowering cylinder 82, this causes
6, the reworking eccentricity prevention roller 88, the reworking adhesive coating roller 87, etc., are lowered at one time, and the liquid crystal panel 3 to be reworked.
Can be pressed at a constant pressure.

As mentioned earlier, the reworking heating roller 86 can also apply heat at a constant temperature to the reworking polarizing plate 5, so that the reworking heat roller 86 is pushed into the liquid crystal panel 3 to be reworked. A fixed amount of heat and a certain amount of pressure are simultaneously applied to the polarizing plate 5 by the process of lowering the fixed frame 81 and the process of generating heat by the rework heating roller 86.

In this case, in the production line, when the process for reworking the polarizing plate proceeds, the heating and pressurizing processes of the reworking polarizing plate 5 can be simultaneously advanced, and as a result, the reworking polarizing plate can be processed. 5 without removing the heating / pressing process, all the bubbles existing between the rework polarizing plate 5 and the liquid crystal panel 3 to be reworked can be removed. The effect of greatly improving the performance is obtained.

Hereinafter, a method for reworking a polarizing plate using a device for reworking a polarizing plate for a liquid crystal display according to another embodiment of the present invention will be described in detail with reference to the above description and drawings.

As shown in FIG. 8, in the production line, first, a step of aligning the liquid crystal panel to be reworked on the liquid crystal panel transfer jig for reworking is performed (step S40). In this case, after peeling off the defective polarizing plate from the liquid crystal panel 3 to be reworked, the worker places the liquid crystal panel 3 to be reworked on the liquid crystal panel transfer jig 60 for reworking as shown in FIG. Align. Of course, this rework target liquid crystal panel 3
Is mounted with a printed circuit board 4.

On the other hand, on the production line, at a time similar to the alignment step of the liquid crystal panel 3 to be reprocessed, a step of aligning the rework polarizing plate 5 on the rework polarizing plate alignment jig 70 is performed. (Step S50). In this case, the operator aligns the reworking polarizing plate 5 on the reworking polarizing plate alignment jig 70.

After the alignment process of the liquid crystal panel to be reprocessed (step S40) and the alignment process of the rework polarizing plate (step S50) are completed to some extent, the rework polarizing plate 5 is reprocessed on the production line. The step of attaching the liquid crystal panel 3 to the liquid crystal panel 3 in one-to-one correspondence is performed (step S60).

In this case, as shown in FIG. 6 described above, first, the screw rod 203 is rotated rapidly by the action of the motor 204 so that the reworking liquid crystal panel transfer jig 60 is moved to the reworking liquid crystal panel 3. While holding, is moved toward the rework polarizing plate alignment jig 70 (step S61).

At this time, since a pair of guide rails 202 are further arranged on both sides of the screw rod 203,
The reworking liquid crystal panel transfer jig 60 freely reciprocates to the left and right sides of the stage by the action of the screw 203,
A stable running state without additional shaking can be maintained.

At a time similar to the movement of the rework polarizing plate alignment jig 60, the robot arm 91 lifts the rework polarizing plate alignment jig 70 upward (step S62).

In this state, a protective film removing tool (not shown) disposed adjacent to the robot arm 91 removes the protective film 5a attached to the surface of the rework polarizing plate 3. Of course, such a process of removing the protective film 5a may be performed when the rework polarizing plate alignment jig 70 is seated on the stage 201.

On the other hand, if the reworking liquid crystal panel transfer jig 60 stops on the right side of the stage 201 after a certain period of time, the robot arm 91 moves the reworking polarizing plate alignment jig as shown in FIG. By turning over 70, the rework polarizing plate alignment jig 70 is tilted at a fixed angle, whereby one edge of the rework polarizing plate 5 is aligned with one edge of the liquid crystal panel 3 to be reworked. (Step S6
3).

In this state, the stationary frame 81 is lowered by controlling the lifting cylinder 82 in the production line (step S64). As a result, the reworking heating roller 86, the reworking eccentricity preventing roller 88, the reworking adhesive coating roller 87, etc. are lowered at a time to apply a certain amount of pressure to the reworking polarizing plate 5. Will be.

At the same time, the motor 2
04, the liquid crystal panel transfer jig 6 for reworking
0 is moved to, for example, the left side of the stage 201, and the rework heating roller 86, the rework eccentricity prevention roller 88, the rework adhesive coating roller 87, and the like are rotated, so that the rework polarizing plate 5 is moved. It is pushed toward the liquid crystal panel 3 to be reworked (step S65).

At this time, the rework polarizing plate alignment jig 70
Is that the vacuum set in the vacuum suction holes 71 is sequentially released according to the traveling speed of the liquid crystal panel transfer jig 60 for rework, so that the rework polarizing plate 5 is smoothly moved toward the liquid crystal panel 3 to be reworked. So that

As mentioned above, the reworking heating roller 86 can perform a series of heat generation functions by mounting the reworking heating rod 83 having the heat radiation capability in the through groove of the reworking shaft 84. As a result, the reworking heating roller 86, the reworking eccentricity prevention roller 88, the reworking adhesive coating roller 87, etc. can be lowered by the action of the elevating cylinder 82 to perform a series of pressing functions. When a certain amount of heat and pressure are applied simultaneously to the reworking polarizing plate 5 pushed toward the liquid crystal panel 3 to be reworked, and the polarizing plate attaching process according to the present embodiment is completed, the reworking polarizing plate is 5 is a separate heating
Even if there is no pressurizing process, it can be stably attached to the liquid crystal panel 3 to be reworked.

Of course, in applying the other embodiment of the present invention described above, in the production line, the liquid crystal panel transfer jig 60 for rework is moved so that the adhesion quality of the rework polarizing plate 5 can be optimized. Speed is for example 1.1 cm / s ~
Naturally, the inclination angle of the rework polarizing plate alignment jig 70 is kept at 15 ° to 30 ° with respect to the rework liquid crystal panel transfer jig 60 by maintaining the value at 1.3 cm / s. It is.

Further, it is natural that the heating temperature of the reworking heating roller 86 is maintained at 50 ° C. to 70 ° C., and the pressing strength of the reworking roll unit 80 is maintained at about 1.5 bar to 3.0 bar. That is.

Thereafter, the liquid crystal panel 3 to be reworked after the polarizing plate reworking process has been completed is subjected to a series of post-processing processes and then shipped as a finished product.

As described above, in each embodiment of the present invention, the heating and pressurizing steps of the polarizing plate proceed simultaneously with the attaching step of the polarizing plate, the reworking step of the polarizing plate, etc. Can greatly improve productivity.

The present invention has a wide and useful effect on liquid crystal panels of various sizes manufactured on a production line.

The preferred embodiments of the polarizing plate attaching apparatus for a liquid crystal display device and the polarizing plate reworking apparatus according to the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious that those skilled in the art can conceive various changes or modifications within the scope of the technical idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

[0192]

As described above in detail, according to the present invention, it is possible to prevent the generation of static electricity between a polarizing plate and a liquid crystal panel in a polarizing plate attaching step and a polarizing plate reworking step for a liquid crystal display device. In addition, the present invention can provide a polarizing plate attaching apparatus and a polarizing plate reworking apparatus for a liquid crystal display device, which can simultaneously perform the heating and pressing steps of the polarizing plate and greatly improve the overall productivity of the product.

A part of a roll unit that substantially heats and presses an individual polarizing plate, a reworking polarizing plate, and the like is provided with an antistatic ring that has been subjected to an antistatic treatment. When the process is performed, no static electricity is generated between the polarizing plate and the liquid crystal panel.

In addition, the polarizing plate reworking process is automated to avoid mistakes by the operator and prevent various accidents such as inflow of foreign substances between the polarizing plate and the liquid crystal panel, generation of bubbles, breakage of the liquid crystal panel, and the like. be able to.

[Brief description of the drawings]

FIG. 1 is an exemplary view showing an apparatus for attaching a polarizing plate for a liquid crystal display according to an embodiment of the present invention.

FIG. 2 is an exemplary view showing a first operation state of the polarizing plate attaching unit according to one embodiment of the present invention.

FIG. 3 is an exemplary view showing a second operation state of the polarizing plate attaching unit according to the embodiment of the present invention;

FIG. 4 is a flowchart illustrating a method of attaching a polarizing plate according to an exemplary embodiment of the present invention.

FIG. 5 is an exemplary view showing a first state of a reworking apparatus for a polarizing plate for a liquid crystal display according to another embodiment of the present invention.

FIG. 6 is an exemplary view showing a second state of the polarizing plate reworking apparatus for a liquid crystal display according to another embodiment of the present invention.

FIG. 7 is an exemplary view showing a third state of the polarizing plate reworking apparatus for a liquid crystal display according to another embodiment of the present invention.

FIG. 8 is a flowchart illustrating a method of reworking a polarizing plate according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Individual liquid crystal panel 2 Individual polarizing plate 10 Liquid crystal panel supply unit 11, 21 Main body 12 Handling arm 13 Liquid crystal panel carrying jig 14, 18, 24, 26 Station 15 Roller 16 Cleaning film 17 Rolling bar 19, 34 Vacuum pipe 20 Polarizing plate Supply unit 22, 25, 27 Handling arm 22a Hand 23 Cleaning roll 28 Stopper 30 Polarizing plate attaching unit 32 Liquid crystal panel transfer jig 33 Polarizing plate aligning jig 35 Vacuum suction hole 40 Roll unit 50 Rotating arm 100 Polarizing plate attaching device 101 Guide rail

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H049 BA02 BA43 BC01 BC14 BC22 2H088 FA01 FA16 FA17 FA30 HA18 MA20 2H091 FA08X FA08Z FC16 FC29 FD12 FD15 LA12

Claims (24)

[Claims] A liquid crystal panel supply unit for sequentially supplying individual liquid crystal panels; a polarizing plate supply unit for sequentially supplying individual polarizers corresponding to the individual liquid crystal panels; a liquid crystal panel supply unit and the polarizing plate supply unit. A polarizing plate attaching unit that is arranged at an intersection of the polarizing plate attaching unit and attaches the individual polarizing plate supplied from the polarizing plate supplying unit to the individual liquid crystal panel supplied from the liquid crystal panel supplying unit in a one-to-one correspondence, A liquid crystal panel transfer jig that moves left and right by external force while gripping the individual liquid crystal panel; and a liquid crystal panel transfer jig that is disposed below the liquid crystal panel transfer jig while holding the individual polarizer. When the LCD panel transfer jig stops,
A polarizing plate aligning jig which is tilted at a certain angle by an external force and aligns one side edge of the individual polarizing plate with one side edge of the individual liquid crystal panel; mounted on an end of the polarizing plate aligning jig to transfer the liquid crystal panel A roll unit for pushing the individual polarizing plate toward the individual liquid crystal panel when the jig is moved, heating the individual polarizing plate, and pressing the individual polarizing plate. Plate attachment device. 2. The fixing device according to claim 2, wherein the roll unit includes a fixing bracket mounted on an end of the polarizing plate alignment jig; and a heating roller rotatably mounted on the fixing bracket and applying heat of a predetermined temperature to the individual polarizing plates. An eccentricity prevention roller rotatably mounted on the fixed bracket, communicating with the heating roller, rotating at the same speed, and pressing the outer peripheral surface of the heating roller to prevent the heating roller from tilting; 2. An adhesive-coated roller rotatably mounted, communicating with the heating roller and the eccentricity preventing roller, rotating at the same speed, and coating the individual polarizing plate with a fixed amount of adhesive. 4. A polarizing plate attachment device for a liquid crystal display device according to item 1. 3. The polarizing plate according to claim 1, wherein the heating roller, the eccentricity preventing roller, and the adhesive-coated roller are pushed up at once by raising the polarizing plate aligning jig to uniformly press the individual polarizing plates. 3. The polarizing plate attachment device for a liquid crystal display device according to 2. 4. The heating roller comprises a combination of a shaft having a through-groove formed therein; a heating rod inserted into the through-groove; and an antistatic roll wound around an outer peripheral surface of the shaft. The polarizing plate attachment device for a liquid crystal display device according to claim 2 or 3, wherein: 5. The apparatus according to claim 4, wherein the antistatic roll is made of super heat resistant silicon. 6. The super heat-resistant silicon has a resistance of 10 ⁸ Ω to 10 Ω.
^The polarizing plate attachment device for a liquid crystal display device according to claim 5, wherein the device is subjected to antistatic treatment so as to have an electric resistance value of ¹⁰ Ω. 7. The apparatus for attaching a polarizing plate for a liquid crystal display device according to claim 5, wherein the super heat resistant silicon has a hardness of between about 40 ° and about 60 °. 8. A first step of supplying an individual liquid crystal panel to the polarizing plate attaching unit using a liquid crystal panel supplying unit; and supplying an individual polarizing plate to the polarizing plate attaching unit using a polarizing plate supplying unit. A second step of attaching the individual polarizing plates to the individual liquid crystal panels in a one-to-one correspondence using the polarizing plate attaching unit. Moving the tool to the side of the polarizing plate alignment jig where the individual polarizing plate is gripped; stopping the liquid crystal panel transfer jig above the polarizing plate alignment jig; and At the time of the stop, one side edges of the individual liquid crystal panel and the individual polarizing plate are bonded to each other, and the polarizing plate alignment jig is tilted so that a predetermined amount of pressure is applied to the individual liquid crystal panel side. Step Floor; moving the liquid crystal panel transfer jig and rotating the roll unit,
Heating the individual polarizing plate and pressing the individual polarizing plate while pressing the individual polarizing plate toward the individual liquid crystal panel side. 9. The liquid crystal panel transfer jig is 1.1 cm /
The method according to claim 8, wherein the polarizing plate is moved at a speed of s to 1.3 cm / s. 10. The polarizing plate according to claim 8, wherein the polarizing plate alignment jig is inclined at an angle of 10 ° to 30 ° with respect to the liquid crystal panel transfer jig. Attachment method. 11. The method according to claim 8, wherein the roll unit heats the individual polarizing plate at a temperature of 50 ° C. to 70 ° C. 12. The method according to claim 8, wherein the roll unit presses the individual polarizers at 1.5 bar to 3 bar. 13. A stage for reworking a liquid crystal panel for reprocessing, which is disposed at a first point on the stage, and which moves left and right by an external force while holding a liquid crystal panel to be reprocessed on which a printed circuit board is mounted. At the second point on the stage corresponding to the second point, gripping the rework polarizing plate, and moving the rework liquid crystal panel transfer jig to the second point side; When the liquid crystal panel transfer jig is positioned above the rework liquid crystal panel transfer jig and stops at the second point, the liquid crystal panel transfer jig is inclined at a certain angle toward the rework liquid crystal panel transfer jig, A polarizing plate alignment jig for reworking, which aligns one side edge of the polarizing plate for use with one side edge of the liquid crystal panel to be reworked;
When the reworking liquid crystal panel transfer jig is disposed between the reworking liquid crystal panel transfer jig and the reworking polarizing plate alignment jig and moves in a direction opposite to the reworking polarizing plate alignment jig, A reworking roll unit for rotating the reworking polarizing plate toward the reworking target liquid crystal panel by a rotating operation, and for heating and pressing the reworking polarizing plate. Plate rework equipment. 14. A reworking roll unit, comprising: a fixed frame placed upright on the stage; built-in at the bottom of the stage, integrally connected to the fixed frame, and an elevating unit for moving the fixed frame up and down. A cylinder; a reworking heating roller rotatably mounted on the fixed frame and applying heat of a constant temperature to the reworking polarizing plate; a rotatable mounting on the fixed frame, and the reworking heating roller; A reworking eccentricity preventing roller that rotates at the same speed in contact with the outer peripheral surface of the reworking heating roller and presses the outer peripheral surface of the reworking heating roller to prevent inclination of the reworking heating roller; rotatably mounted on the fixed frame; A rework adhesive coating roller that rotates at the same speed in communication with the rework heating roller and the rework eccentricity prevention roller to coat the rework polarizing plate with a fixed amount of adhesive. The liquid crystal display device for a polarizing plate rework apparatus which comprises a la. 15. The reworking heating roller, the reworking eccentricity prevention roller, and the reworking adhesive-coated roller are depressed at once by lowering the elevating cylinder to press the reworking polarizing plate constantly. 15. The apparatus for reworking a polarizing plate for a liquid crystal display device according to claim 14, wherein: 16. The reworking heating roller includes: a reworking shaft having a through-groove formed therein; a reworking heating rod inserted into the through-groove; and an outer peripheral surface of the reworking shaft. 15. The apparatus for reworking a polarizing plate for a liquid crystal display device according to claim 14, wherein the apparatus comprises a combination of antistatic rolls for reworking. 17. The apparatus for reworking a polarizing plate for a liquid crystal display device according to claim 14, wherein the reworking antistatic roll is made of super heat resistant silicon. 18. The super-heat-resistant silicon has a resistivity of 10 ⁸ Ω to 10
18. The apparatus for reworking a polarizing plate for a liquid crystal display device according to claim 17, wherein the apparatus is subjected to an antistatic treatment so as to have an electric resistance value of ¹⁰ Ω. 19. The super heat-resistant silicon is Shore40.
The apparatus for reworking a polarizing plate for a liquid crystal display device according to claim 17, wherein the apparatus has a hardness of {60}. 20. A first step of aligning a liquid crystal panel to be reworked on which a printed circuit board is mounted on a liquid crystal panel transfer jig for rework; a rework polarizing plate on a rework polarizing plate alignment jig. And a tertiary step of attaching the rework polarizing plate to the liquid crystal panel to be reworked in one-to-one correspondence, wherein the tertiary step is a jig for transferring the rework liquid crystal panel. Is moved to the reworking polarizing plate alignment jig side, and the reworking polarizing plate alignment jig is lifted; and when the reworking liquid crystal panel transfer jig stops, the reworking polarizing plate alignment jig is stopped. Turning the plate alignment jig upside down and tilting the rework polarizing plate alignment jig so that one side edge of the liquid crystal panel to be reworked and the rework polarizing plate are bonded to each other; and transferring the rework liquid crystal panel. Set the jig in the opposite direction to the rework polarizing plate alignment jig At the same time, the reworking roll unit is rotated so that the reworking polarizing plate is pushed into the liquid crystal panel to be reworked, and the reworking polarizing plate is heated. At the same time, the reworking roll unit is lowered. Holding the rework polarizing plate and pressing the rework polarizing plate. 21. The reworking of a polarizing plate for a liquid crystal display device according to claim 20, wherein the reworking liquid crystal panel transfer jig moves at a speed of 1.1 cm / s to 1.3 cm / s. Method. 22. The reworking polarizing plate alignment jig is inclined at an angle of 10 ° to 30 ° with respect to the reworking liquid crystal panel transfer jig. Reworking method of polarizing plate for liquid crystal display. 23. The reworking polarizing plate for a liquid crystal display device according to claim 20, wherein the reworking roll unit heats the reworking polarizing plate at a temperature of 50 ° C. to 70 ° C. Method. 24. The method of claim 20, wherein the rework roll unit presses the rework polarizing plate at 1.5 bar to 3 bar.