KR20120113817A - Polarizing plate bonding apparatus and polarizing plate bonding method using the same - Google Patents

Polarizing plate bonding apparatus and polarizing plate bonding method using the same Download PDF

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Publication number
KR20120113817A
KR20120113817A KR1020110028349A KR20110028349A KR20120113817A KR 20120113817 A KR20120113817 A KR 20120113817A KR 1020110028349 A KR1020110028349 A KR 1020110028349A KR 20110028349 A KR20110028349 A KR 20110028349A KR 20120113817 A KR20120113817 A KR 20120113817A
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KR
South Korea
Prior art keywords
polarizing plate
separator
transparent substrate
polarizing plates
polarizing
Prior art date
Application number
KR1020110028349A
Other languages
Korean (ko)
Inventor
시게루 기무라
Original Assignee
요도가와 메덱 가부시키가이샤
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Priority to KR1020110028349A priority Critical patent/KR20120113817A/en
Publication of KR20120113817A publication Critical patent/KR20120113817A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00634—Production of filters
    • B29D11/00644—Production of filters polarizing
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers

Abstract

PURPOSE: A polarizing plate junction device and a polarizing plate junction method using the device are provided to attach polarizing plates to both sides of a transparent substrate by using a stripping device and a polarizing plate supply station. CONSTITUTION: A conveyor(11) returns a transparent substrate(50) in a longitudinal position. A roller(7) wrapped in a separator(70) in a band shape is loaded into polarizing plate supply stations(2,20). Separated polarizing plates(4,40) are attached to the separator. A stripping device(8) strips the polarizing plates from the separator. A junction unit(13) attaches the stripped polarizing plates to both sides of the transparent substrate. [Reference numerals] (AA,BB) Winding a separator; (CC) CF side polarizing plate + separator; (DD) TFT side polarizing plate + separator

Description

POLARIZING PLATE BONDING APPARATUS AND POLARIZING PLATE BONDING METHOD USING THE SAME}

This invention relates to the polarizing plate bonding apparatus which sticks a polarizing plate on both surfaces of a transparent substrate made of glass, and produces a liquid crystal display, and the polarizing plate bonding method using the apparatus.

(Roll type adapter)

4 is a cross-sectional view of a liquid crystal display. The liquid crystal display 5 has a CF filter (color filter) polarizing plate 4 and a TFT film (thin film transistor) polarizing plate on the surface of a transparent substrate 50 made of glass containing a liquid crystal, an alignment film, a transparent electrode, or the like. 40) is constructed by pasting. As is well known, the CF-side polarizing plate 4 and the TFT-side polarizing plate 40 are shifted by 90 ° from each other in the direction of the transmission axis of light, and are usually formed of a film having a thickness of several hundred microns.

In order to continuously attach the polarizing plates 4 and 40 to the transparent substrate 50, as shown in FIG. 5, the sheet 71 which stuck the polarizing plates 4 and 40 on the strip | belt-shaped separator 70 is used. It is known. On the sheet 71, there is a portion 49 cut only in the polarizing plates 4 and 40, the neighboring polarizing plates 4 and 40 are separated, and the separator 70 is not cut. This is called half cut state. The polarizing plates 4 and 40 are peeled from the sheet 71 and adhered to upper and lower surfaces of the transparent substrate 50.

FIG. 6 is a flowchart showing a procedure of attaching the polarizing plates 4 and 40 to the transparent substrate 50 (see Patent Document 1). CF side polarizing plate 4 and TFT side polarizing plate 40 are supplied from CF side polarizing plate supply apparatus 28 and TFT side polarizing plate supply apparatus 29, respectively. In each supply apparatus 28 and 29, the roll 7 which wound the sheet 71 is loaded. The transparent substrate 50 is supplied from the side of the CF side polarizing plate supply device 28.

The CF side polarizing plate 4 and the TFT side polarizing plate 40 are constituted by roll discs having absorption axes in the same direction, and both correspond to the lengths of the long side and the short side of the liquid crystal display 5.

The CF side polarizing plate 4 supplied from the CF side polarizing plate supply device 28 is pasted from the upper side of the transparent substrate 50 at the station S1. Subsequently, in the station S2, the transparent substrate 50 is rotated in a 90 ° horizontal plane to shift the transmission axis direction of the light by 90 °, and in station S3, the TFT side polarizing plate supplied from the TFT side polarizing plate supply device 29 ( 40) is attached from the lower side. In this manner, both polarizing plates 4 and 40 are attached to the upper and lower surfaces of the transparent substrate 50.

FIG. 7: is a figure which shows the internal structure of the CF side polarizing plate supply apparatus 28, and the polarizing plate 4 bonding operation in the station S1, and FIG. 8 is a structure which peels the CF side polarizing plate 4 from the separator 70. As shown in FIG. Is an enlarged view.

After the sheet 71 of the CF side polarizing plate 4 supplied from the roll 7 is half cut by the cutter 26 and the pedestal 27, the tip is sent to the sharp knife portion 80, and the knife portion The sheet 71 is wound around the tip of 80 to be reversely conveyed. By pulling in the reverse direction in the state where tension is applied, the CF side polarizing plate 4 is peeled off from the separator 70, and the separator 70 is wound around the recovery roller 78. The peeled CF side polarizing plate 4 is attached to the transparent substrate 50 by the bonding rollers 13 and 13. The internal structure of the TFT side polarizing plate supply device 29 is substantially the same as the CF side polarizing plate supply device 28.

In the above, the CF side polarizing plate 4 is attached from above the transparent substrate 50 and the TFT side polarizing plate 40 is attached from below the transparent substrate 50. You may attach the TFT side polarizing plate 40 from the upper side from the lower side. Thus, the apparatus provided with the structure which supplies the long sheet which attached the polarizing plates 4 and 40 to the separator 70 is called a roll type bonding machine.

Since a roll type bonding machine supplies a polarizing plate continuously with a roll, processing time is quick. Moreover, since a polarizing plate is a thin film, it is easy to curl, but since a polarizing plate is stuck to a separator, tolerance with respect to a curl is large. However, there are also the following difficulties.

1. In a roll type bonding machine, both polarizing plates 4 and 40 cannot be attached to the transparent substrate 50 at the same time. Moreover, there are several percent of defects in the polarizing plates 4 and 40 constituting the roll 7, and a mechanism for avoiding and discharging them is required, and the operation rate is lowered.

2. When the cutter 26 enters too deep at the time of half cut, it will cause the separator 70 to break, and will be a big obstacle to a subsequent process. Moreover, when the cutter 26 enters shallowly, the polarizing plates 4 and 40 are not separated, and it cannot be bonded by the transparent substrate 50. This disruption causes the device to shut down, which greatly affects the operation rate.

3. The cutting depth of the cutter 26 for half-cutting is required to be ± 2 μm, and operator skill is required to adjust the cutting depth of the cutter 26 as prescribed. Moreover, about 5 micrometers is required for the plane precision (surface roughness) of the base 27, and the manufacturing cost of the base 27 becomes high.

(Leaf type double-sided simultaneous adapter)

Therefore, the applicant previously proposed an apparatus for simultaneously attaching one piece of polarizing plates 4 and 40 at the same time from both sides of the transparent substrate 50 instead of the roll type bonding machine, in which the transmission axis directions of the light are shifted by 90 ° from each other (see Patent Document 2). ). Since the polarizing plates 4 and 40 are attached to the transparent substrate 50 one by one, a mechanism for half-cutting is unnecessary.

9 is a perspective view of the polarizing plate bonding apparatus 1. The polarizing plate bonding apparatus 1 arranges a pair of rectangular parallelepiped rotators 9 and 9 spaced apart from each other and rotates about the horizontal axis L passing through the center C of the side surface, thereby placing both rotators. The transparent substrate 50 of a standing posture is conveyed between (9) (9). At four side surfaces of each rotating body 9, adsorption tables 6, 6, 6 and 6 which adsorb the polarizing plates 4 and 40 are arranged. The adsorption table 6 is arrange | positioned so that rotation is possible centering on the pivot support part 62 located in the conveyance upstream of the transparent substrate 50 as mentioned later.

On the downstream side of each rotating body 6, the cassette 31 which piled up several sheets of polarizing plates 4 and 40 was accommodated, and the cover film 41 is attached to the upper surface of each polarizing plate 4 and 40. As shown in FIG. . Between the cassette 31 and the rotating body 9, the take-out stage which picks up the polarizing plates 4 and 40 one by one from the cassette 31 and sends them to the adsorption table 6 of the lower surface of the rotating body 9 ( 95) is installed.

Between the two rotors 9 and 9, a pair of polarizing plates 4 and 40 is attached to the transported downstream side of the transparent substrate 50 than the adsorption table 6 to the transported transparent substrate 50. The rollers 13 and 13 are arranged so as to be accessible to each other.

When attaching the polarizing plates 4 and 40 to the transparent substrate 50, each of the polarizing plates 4 and 40 taken out by the extraction stage 95 is taken out of the extraction stage 95 and the rotating body 9 and 9. In between, it is positioned in the horizontal direction. The positioned polarizing plates 4 and 40 are sent to the rotating body 9 so as to face the suction table 6 on the upper surface of the rotating body 9. After the adsorption table 6 adsorb | sucks the polarizing plates 4 and 40, the rotating body 9 symmetrically rotates 180 degrees to the arrow D direction of FIG. 9, and the adsorption | suction which adsorb | sucked the polarizing plates 4 and 40 The table 6 faces the lower side of the rotating body 9, where the cover film 41 is peeled off with a peeling unit (not shown) to expose the adhesive surface of the polarizing plates 4 and 40. Moreover, when the rotating body 9 rotates 90 degrees, the CF side polarizing plate 4 and the TFT side polarizing plate 40 will mutually face toward an adhesion layer.

Subsequent operations will be described with reference to FIGS. 10A and 10B. 10 (a) and 10 (b) are plan views of the rollers 13 and 13 and the suction table 6. When the transparent substrate 50 is conveyed between both the rotating bodies 9 and 9, as shown in FIG. 10 (a), the pivot support part in which the suction table 6 is located upstream of the transparent substrate 50 ( The other ends of the tables 6 and 6 approach each other by rotating around 62). The movable sucker 63 is located on the pivot support part 62 side of the suction table 6. One end of the polarizing plates 4 and 40 exposing the adhesive surface is pasted to the transparent substrate 50, and the movable sucker 63 moves toward the rollers 13 and 13. The transparent substrate 50 with one end of the polarizing plates 4 and 40 is transported between the rollers 13 and 13, and the rollers 13 and 13 rotate, while the transparent substrate 50 and the polarizing plate 4 are rotated. 40) in between. The polarizing plates 4 and 40 are attached to the transparent substrate 50 by the adhesive layer, and the liquid crystal display 5 is produced. When the polarizing plates 4 and 40 are all attached, the rollers 13 and 13 return to their original positions, preparing for the bonding of the next polarizing plates 4 and 40.

This polarizing plate bonding apparatus is called a sheet | leaf type double-sided simultaneous bonding machine.

Patent Document 1: Japanese Patent No. 4307510 Patent Document 2: Japanese Patent Application Publication WO2007 / 097058

In the said sheet | leaf type double-sided simultaneous bonding machine, the polarizing plate 4a 40 can be used only by selecting the polarizing plate unit 4a, and operation rate is high. Moreover, since the positioning of the transparent substrate 50 and the joining location of the polarizing plates 4 and 40 are one place, there exists an advantage that the apparatus whole length can be shortened and manufacturing cost can be suppressed. However, the following improvement has been made.

1. Although the polarizing plates 4 and 40 are accommodated one by one in the cassette 31, there exists a possibility that the polarizing plates 4 and 40 may be incorrectly put into the cassette 31, and this leads to process defect.

2. The polarizing plates 4 and 40 are positioned in the horizontal direction between the extraction stage 95 and the rotating bodies 9 and 9, but this positioning mechanism is complicated. Specifically, the positioning mechanism includes a table on which the polarizing plates 4 and 40 are placed and finely adjusted in the horizontal direction, and a camera for confirming the horizontal position from the polarizing plates 4 and 40. Complex.

Moreover, since the cover film 41 is peeled off one by one, there exists a possibility of causing a peeling miss. Moreover, in order to peel the cover film 41, although the peeling tape is often stuck and peeled off from the cover film 41, this peeling tape is needed.

3. Since the rotating body 9 intermittently rotates by 90 degrees and opposes the polarizing plates 4 and 40 one by one, the bonding processing time is slow compared with a roll type bonding machine.

4. Since the polarizing plates 4 and 40 are thin films, they are easy to curl, and the curled polarizing plates 4 and 40 are difficult to handle compared to the roll type bonding machine. Therefore, there is a possibility that the curled polarizing plates 4 and 40 cannot be adhered to the transparent substrate 50 satisfactorily.

Applicant invented the structure that half-cut is unnecessary, including the advantage of a roll type | mold machine in a single-sided double-sided simultaneous bonding machine, and simultaneously attaching the polarizing plates 4 and 40 to the transparent substrate 50. FIG.

The objective of this invention is providing the polarizing plate bonding apparatus which can simultaneously attach both polarizing plates 4 and 40 to the transparent substrate 50, and does not require a half cut.

The polarizing plate bonding apparatus 1 is located on both sides of the conveyor 11 which conveys the transparent substrate 50 to a posture of a longitudinal direction, and the conveying direction of the conveyor 11, and each polarizing plate 4 isolate | separated one by one. The separator 70 is located on both sides of the polarizing plate supply station 2 and the conveying direction of the polarizing plate supply station 2 and 20 in which the roll 7 which wound the strip | belt-shaped separator 70 to which 40 is attached previously is loaded, and the transparent substrate 50, respectively. ) To the peeling apparatus 8 (8) and the peeling apparatus 8 (8) which peels the polarizing plates 4 and 40 from the downstream side of the transparent substrate 50 with respect to the peeling apparatus 8 and 8, and from the separator 70 The bonding apparatus which attaches the peeled polarizing plates 4 and 40 to both surfaces of the transparent substrate 50 is provided.

1. In this invention, a polarizing plate supply station and a peeling apparatus are located in the both sides of a transparent substrate, and a polarizing plate is affixed from both sides of a transparent substrate. Thereby, by supplying a polarizing plate in roll shape, a polarizing plate can be paste | laminated simultaneously from both sides of a transparent substrate, maintaining the characteristic of the roll type bonding machine which process time is quick.

2. A roll separates and attaches a polarizing plate one by one to a separator previously, and is wound up and formed. Therefore, the faulty polarizing plate can be removed, the polarizing plate only of quality goods can be selected, and it can be made roll shape. Thereby, the defective rate of a polarizing plate is low, the operation rate of an apparatus is also high, and the assembly failure rate of a liquid crystal display can be finally reduced.

Moreover, since a polarizing plate can be previously attached to a separator, there is no trouble of the horizontal positioning of the polarizing plate which was the point which should be improved of a sheet | leaf type double-sided simultaneous bonding machine.

Although there existed a problem of picking up two or more polarizing plates 4 and 40 in the single-leaf double-sided simultaneous bonding machine, there is also no such problem in the polarizing plate bonding apparatus 1 which concerns on this invention. Since there is no effort to peel off the cover film 41 one by one, there is no possibility of causing a peeling mistake, and a peeling tape is not necessary.

3. Since the half cut mechanism and the defect discharge mechanism which were the points which should be improved of the conventional roll type bonding machine are unnecessary, also in this point, the assembly failure rate of a liquid crystal display can be reduced. Moreover, since the polarizing plates 4 and 40 are not cut | disconnected in the polarizing plate bonding apparatus 1, stable operation of an apparatus is possible and the time to replace the polarizing plates 4 and 40 is also short. In the applicant's examination, the time for replacing the polarizing plates 4 and 40 is within 30 minutes.

1 is a perspective view showing an outline of a polarizing plate bonding apparatus.
2 is a plan view of a separator with a polarizing plate attached thereto.
3 is a plan view of a polarizing plate bonding station including a peeling mechanism.
4 is a cross-sectional view of a liquid crystal display.
It is sectional drawing of the sheet | seat which provided the polarizing plate on the separator.
6 is a known process chart showing a procedure of attaching a polarizing plate to a transparent substrate.
FIG. 7 is a diagram showing the internal configuration of the known CF side polarizing plate supply device of FIG. 6 and the polarizing plate bonding operation at the station S1.
8 is an enlarged view of the configuration of FIG. 7 in which the CF side polarizing plate is peeled from the separator.
9 is a perspective view of a known polarizing plate bonding apparatus.
(A), (b) is a top view of a roller and a suction table.

EMBODIMENT OF THE INVENTION Hereinafter, one Example of this invention is described in detail using drawing.

FIG. 1: is a perspective view which shows the outline of the polarizing plate bonding apparatus 1 which concerns on this example. Similarly to the conventional single-leaf double-sided simultaneous bonding machine, the transparent substrate 50 is placed on the conveyor 11 in the longitudinal posture with its longitudinal direction directed in the advancing direction, and is conveyed from the left side in FIG. 1 to the right direction. The conveyor 11 is configured by arranging a plurality of rollers in parallel, but may be another configuration such as a belt.

On the conveyance downstream side of the transparent substrate 50, the CF side polarizing plate supply station 2 and the TFF side polarizing plate supply station 20 are disposed with the conveyor 11 interposed therebetween. The roll 7 is loaded.

Polarizer Feed Station (2) (20)

As shown in FIG. 2, the roll 7 arrange | positions the several sheets of polarizing plate 4 and 40 separated one by one along the longitudinal direction of the separator 70 on the elongate separator 70, and wound this up. Is composed of.

The roll 7 is prepared beforehand by the supplier different from the factory which manufactures the liquid crystal display 5, for example before loading to the polarizing plate supply station 2 (20). The polarizing plates 4 and 40 arranged in the horizontal direction correspond to that of the transparent substrate 50 in the longitudinal direction. In addition, in FIG. 2, although the polarizing plates 4 and 40 are mutually spaced apart on the separator 70, they may be in contact if they are separated from each other.

The roll 7 which wound the separator 70 which attached the CF side polarizing plate 4 is supplied to the CF side polarizing plate supply station 2. The roll 7 which wound the separator 70 which attached the TFT side polarizing plate 40 is supplied to the TFT side polarizing plate supply station 20.

Similar to the conventional roll type bonding machine, the CF side polarizing plate 4 and the TFT side polarizing plate 40 are composed of roll discs having the same absorption axis in the same direction, and the dimensions correspond to the lengths of the long and short sides of the liquid crystal display 5. The transmission axes of the light are shifted by 90 ° from each other.

The separator 70 from each roll 7 and 7 is in the conveyance upstream of the transparent substrate 50 via the conveying rollers 16 and 16 and the intermediate rollers 17 and 17 of FIG. Is sent to the polarizing plate bonding station 85. In the polarizing plate bonding station 85, the peeling apparatus 8 (8) which peels the polarizing plates 4 and 40 from the separator 70 is arrange | positioned at both sides of the conveyor 11. In the polarizing plate bonding station 85, the separator 70 in which the polarizing plates 4 and 40 were peeled off is separated by the separator collection rollers 78 and 78 via the intermediate rollers 17 and 17 and the conveying roller 16. Is wound up.

The separator recovery rollers 78 and 78 are disposed on both sides of the conveyor 11 in correspondence with the polarizing plate supply stations 2 and 20. One separator collection roller 78 winds up the separator 70 to which the CF side polarizing plate 4 is attached, and the other separator recovery roller 78 attaches the TFT side polarizing plate 40 to the separator 70. ) Winding. Or the separator 70 in which the polarizing plates 4 and 40 were peeled off is cut | disconnected shortly and collect | recovered.

Peeling device 8 and bonding device 13

3 (a) and 3 (b) are plan views of the polarizing plate bonding station 85 including the peeling apparatus 8. The peeling apparatus 8 is equipped with the knife part 80 with a sharp tip, the tip part facing the conveyance downstream of the transparent substrate 50, and the separator 70 which stuck the polarizing plates 4 and 40 is wound up. Lose. On the conveyance downstream side of the transparent substrate 50, the pair of bonding rollers 13 and 13 which attach | attach both polarizing plates 4 and 40 to both surfaces of the transparent substrate 50 rather than the peeling apparatus 8 mutually approach each other. Possibly arranged.

As shown in FIG. 3 (a), when the polarizing plates 4 and 40 are attached to both surfaces of the transparent substrate 50 in the polarizing plate bonding station 85, the separator 70 is wound around the tip of the knife portion 80. The separator 70 is pulled in the reversing direction with tension applied by the separator recovery rollers 78 and 78. The polarizing plates 4 and 40 are peeled from the separator 70, are in contact with the transparent substrate 50, and are attached in order from one end side by the bonding rollers 13 and 13. As shown in FIG.3 (b), while the polarizing plates 4 and 40 are stuck by rotation of the bonding roller 13 and 13, the transparent substrate 50 is sent downstream. The next polarizing plates 4 and 40 are sent so as to face the tip of the knife portion 80 and are attached to the next transparent substrate 50. Bonding of the polarizing plates 4 and 40 to the transparent substrate 50 may be a bonding device 13 such as a pressure pad instead of the bonding rollers 13 and 13.

Description of the said Example is for demonstrating this invention, Comprising: It should not interpret it as limiting the invention described in a claim, or reducing a range. In addition, each structure of each part of this invention is not limited to the said Example, Of course, various deformation | transformation is possible for it within the technical scope as described in a claim.

Although the transparent substrate 50 was made of glass, as long as it is a translucent material, it can substitute.

1 Polarizer bonding device 2 CF side polarizer supply station
4 CF side polarizer 7 rolls
11 Conveyor 13 Splicing Roller
20 TFT Side Polarizing Plate Supply Station 40 TFT Side Polarizing Plate
50 transparent substrate

Claims (4)

A conveyor 11 for conveying the transparent substrate 50 in a longitudinal posture,
The polarizing plate supply station which is located on both sides of the conveyance direction of the conveyor 11, and is loaded with the rolls 7 and 7 which wound the strip | belt-shaped separator 70 which previously attached the polarizing plates 4 and 40 separated, respectively. (2) (20),
The peeling apparatus 8 which is located in the conveyance direction both sides of the transparent substrate 50, and peels the polarizing plates 4 and 40 from the separator 70,
The bonding apparatus 13 which is located in the conveyance downstream of the transparent substrate 50 with respect to the peeling apparatus 8, and sticks the polarizing plates 4 and 40 peeled from the separator 70 to both sides of the transparent substrate 50 is provided. It is installed, The polarizing plate bonding apparatus characterized by the above-mentioned. The method according to claim 1,
The polarizing plate bonding apparatus in which each polarizing plate 4 and 40 on the roll 7 shifts the transmission axis of light 90 degrees mutually, and is lined up in the same direction along the separator 70 (the conveyance direction of). The method according to claim 1 or 2,
(The conveyance direction of the separator 70 and the conveyance direction of the transparent substrate 50 are mutually opposite, and on the conveyance upstream side of the transparent substrate 50 rather than the peeling apparatus 8) from the polarizing plate supply station 2 (20) The separator 70 after being supplied and the polarizing plates 4 and 40 are peeled off is wound around the separator collection roller 78. Conveying the transparent substrate 50 in a longitudinal posture,
The pair of rolls 7 and 7 wound around the strip-shaped separators 70 in advance by attaching the two polarizing plates 4 and 40 with the transmission axes of light shifted by 90 ° to each other in advance, conveys the transparent substrate 50. The process of arrange | positioning on both sides of a furnace,
While pulling out the separator 70 from each roll 7 and 7, the tension direction of a separator is changed on both sides of a transparent substrate conveyance path, and the polarizing plates 4 and 40 are isolate | separated from the separator 70, and the polarizing plate 4 A peeling step of sending the adhesive face of (40) toward the transparent substrate 50 surface;
Attaching the adhesive faces of the polarizing plates 4 and 40 separated from the separator 70 to be sent out to the surface corresponding to the transparent substrate 50 during the conveyance movement,
The polarizing plate bonding method which has a process of collect | recovering the remaining separator 70 which isolate | separated the polarizing plate.
KR1020110028349A 2011-03-29 2011-03-29 Polarizing plate bonding apparatus and polarizing plate bonding method using the same KR20120113817A (en)

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Application Number Priority Date Filing Date Title
KR1020110028349A KR20120113817A (en) 2011-03-29 2011-03-29 Polarizing plate bonding apparatus and polarizing plate bonding method using the same

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