JP2014130286A - System for manufacturing optical display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing system further reduced in the total length and in the total height.SOLUTION: A manufacturing system 100 includes: a conveyance mechanism 1 for conveying a liquid crystal panel 10; unwinding parts 2, 3 for unwinding polarizing films; a direction change roller 4 for changing the conveyance direction of the polarizing film released from the unwinding part 2 or 3 to conform to a conveyance direction (A) of the liquid crystal panel 10; and a bonding part for bonding the polarizing film to the liquid crystal panel 10. In a plan view of the manufacturing system 100, the unwinding parts 2, 3 hold raw web rolls 2a, 3a in such a manner that a width direction D of the raw web rolls 2a, 3a conforms to the conveyance direction (A) of the liquid crystal panel 10, and the unwinding parts 2, 3 are arranged to avoid the downside (space 20) of the conveyance mechanism 1.

Description

  The present invention relates to a system for manufacturing an optical display device.

  Conventionally, an optical display device in which a polarizing film is bonded to a liquid crystal panel has been widely manufactured, unwinds a long polarizing film in which a protective film is bonded, cuts only the polarizing film (half cut), An optical display device is obtained by bonding a polarizing film to a liquid crystal panel.

  Patent documents 1 and 2 are mentioned as a manufacturing system of such an optical display device. These documents disclose that two unwinding portions for unwinding the film are installed so that the film can be supplied efficiently. When the remaining amount of the original roll provided in one unwinding portion decreases, the original roll provided in the other unwinding portion is connected, and work with a shorter tact time becomes possible.

  In the manufacturing system of Patent Document 1, two unwinding portions are provided along the transport direction of the liquid crystal panel, and the two unwinding portions are movable along the axial direction of the original fabric roll. Since the unwinding portion moves along the axial direction of the original fabric roll, it does not move upward, and the height of the manufacturing system is suppressed. Moreover, in the said manufacturing system, when the polarizing film is unwound from one unwinding part, it is in the state in which the preliminary | backup raw fabric roll was installed in the other unwinding part, and the residual amount of a polarizing film is When it decreases, the polarizing film can be easily connected.

  The laminating machine described in Patent Document 2 is a turret type, and includes two original fabric rolls, and the two original fabrics are connected to each other.

JP 2011-154340 A (released on August 11, 2011) JP-A-8-208083 (released on August 13, 1996)

  However, in the manufacturing system of Patent Document 1, two unwinding parts are provided along the transport direction of the liquid crystal panel. Therefore, the installation system occupies the entire length of the manufacturing system due to the installation space occupied by the unwinding part in the transport direction of the liquid crystal panel. growing.

  Moreover, since the laminating machine of patent document 2 is a turret system, when connecting original fabric rolls, the space which moves an unwinding part upwards is required. For this reason, when a conveyance mechanism is applied to the said laminating machine, there exists a problem that the total height of the manufacturing system which employ | adopted the said structure becomes high.

  In view of the above problems, an object of the present invention is to provide a manufacturing system having a smaller overall length and overall height.

In order to solve the above problems, an optical display device manufacturing system according to the present invention includes:
An optical display device manufacturing system for laminating a polarizing film on a liquid crystal panel,
A transport mechanism for transporting the liquid crystal panel;
An unwinding unit that holds the roll of the polarizing film and unwinds the polarizing film;
A direction changing roller for changing the transport direction of the polarizing film unwound from the unwinding section so as to follow the transport direction of the liquid crystal panel;
It has a bonding part that bonds the polarizing film and the liquid crystal panel,
When the production system is viewed in plan, the unwinding part holds the original roll so that the width direction of the original roll is along the transport direction of the liquid crystal panel,
The unwinding part is arranged so as to avoid the lower side of the transport mechanism.

  In the manufacturing system according to the present invention, the direction changing roller is arranged so that the transport direction is along the polarizing film before the change and is 40 ° or more and 50 ° or less with respect to the transport direction of the polarizing film. It is preferable.

  The manufacturing system according to the present invention includes two unwinding portions, the two unwinding portions face each other, and the width directions of the raw rolls held by the two unwinding portions are parallel to each other. Further, it is preferable that the two unwinding portions are arranged.

  In the manufacturing system according to the present invention, it is preferable that the two unwinding portions are arranged so as to be up and down.

The manufacturing system according to the invention includes a sensor for detecting the position of the unwound polarizing film on the conveyance direction side of the polarizing film from the direction changing roller,
It is preferable to provide a correction mechanism for correcting the position of the unwound polarizing film based on the detection signal of the polarizing film from the sensor.

The manufacturing system according to the invention comprises a sensor for detecting the position of the unwound polarizing film on the opposite side to the polarizing film transport direction from the direction changing roller,
It is preferable that the unwinding unit includes a correction unit that corrects the position of the unwound polarizing film based on the detection signal of the polarizing film from the sensor.

  In the manufacturing system which concerns on this invention, the conveyance direction of the polarizing film unwound from an unwinding part is changed so that the conveyance direction of the said liquid crystal panel may be followed with a direction change roller. For this reason, even if the said unwinding part is holding the original fabric roll so that the width direction of the original fabric roll is along the conveyance direction of the liquid crystal panel, the conveyance direction of the liquid crystal panel and the conveyance direction of the polarizing film are matched. A polarizing film can be bonded to the liquid crystal panel. By taking advantage of this configuration, in the manufacturing system, the unwinding portion is arranged avoiding the lower side of the transport mechanism, and the entire length of the manufacturing system is shortened by the installation space of the unwinding portion. Further, since the transport mechanism is not disposed above the unwinding portion, the transport mechanism can be set at a low position, and the overall height of the manufacturing system is shortened. As a result, it is possible to provide a manufacturing system that has a reduced overall length and height.

It is a side view showing the whole manufacturing system concerning the present invention. It is a side view which shows the knife edge vicinity of the manufacturing system which concerns on this invention. (A) is a side view which shows the direction change roller vicinity of the manufacturing system which concerns on this invention, (b) is a top view which shows the positional relationship of a direction change roller and the polarizing film before a conveyance direction is changed. . It is a top view which shows the manufacturing system which concerns on this invention. FIG. 2 is a cross-sectional view taken along the a-a ′ section of the manufacturing system of FIG. 1. It is arrow sectional drawing which shows the modification of a manufacturing system. (A) is a side view which shows the meandering correction roller and end surface detection sensor which concern on this invention, (b)-(d) is a side view which shows operation | movement of a meandering correction roller.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6, but the present invention is not limited thereto, and various modifications are possible. In addition, the same member name is attached | subjected to the member which has the same function and structure, and the description is abbreviate | omitted.

  FIG. 1 is a side view showing an entire manufacturing system 100 as an example of the manufacturing system of the present invention. The manufacturing system 100 includes a transport mechanism 1, an unwinding unit 2, an unwinding unit 3, a direction change roller (not shown), a half cutter 5, a knife edge (peeling unit) 6, a winding unit 7, and a nip roller (bonding unit). 8 and a reversing mechanism 9, and further includes an unwinding portion 12, an unwinding portion 13, a direction changing roller (not shown), a half cutter 15, a knife edge 16, a winding portion 17, and a nip roller 18. . The manufacturing system 100 includes a connecting portion as a preferred form, and the connecting portion is not shown in FIG.

  The transport mechanism 1 transports the liquid crystal panel 10 to the nip roller 8. The transport mechanism 1 is configured with a roller, but is not limited thereto, and may be configured with a belt. As the liquid crystal panel 10, a known liquid crystal panel may be used, and a known liquid crystal panel in which an alignment film is disposed between a substrate such as a glass substrate and a liquid crystal layer may be used. The shape of the liquid crystal panel is not particularly limited, but in the manufacturing system 100, the liquid crystal panel 10 has a rectangular plate shape.

  The unwinding portions 2 and 3 are members that hold and unwind the polarizing film. The unwinding parts 2 and 3 hold the original rolls 2a and 3a of the polarizing film, respectively. The unwinding parts 2 and 3 are provided with two chucking (fixing parts), and the diameter of the tip part of the chucking part is smaller than the opening of the raw roll, and the two leading parts are connected to the core of the raw roll. The raw roll is fixed by pushing into a paper tube, a resin tube or a metal tube.

  The positions of the unwinding portions 2 and 3 can be finely adjusted. However, the unwinding portions 2 and 3 may have a structure in which the position is not largely changed, or may be a turret method (FIG. 6). Although the manufacturing system 100 includes two unwinding portions so as to quickly connect the polarizing films, the effect of the present invention can be obtained even if the number of unwinding portions is one. Detailed arrangement of the unwinding portions 2 and 3 will be described later with reference to FIGS.

  A known polarizing film may be used as the polarizing film. As the polarizing film in the present invention, a long polarizing film is usually used. Specifically, a TAC (triacetyl cellulose) film or the like is bonded to both surfaces of the polarizer film, and a protective film is laminated on one or both TAC films via an adhesive. Yes. Among the polarizing films, examples of the polarizer film located at the center include a film obtained by dyeing a polyvinyl alcohol film with iodine or the like and stretching the film. Also, instead of the polyvinyl alcohol film, a partially formalized polyvinyl alcohol film, an ethylene / vinyl acetate copolymer partially saponified film, a hydrophilic polymer film such as a cellulose film, etc. Polyene-oriented films such as vinyl chloride dehydrochlorinated products can also be used.

  Although the total thickness of the polarizing film including a protective film is not specifically limited, It can be 100 micrometers or more and 500 micrometers or less, and can make a width | variety 200 mm or more and 1500 mm or less. Of the polarizing films, the thickness of the polarizer film is generally 10 μm or more and 50 μm or less. Other layers may be included in addition to the TAC film / polarizer film / TAC film within the practical range of the polarizing film.

  As the protective film, a polyester film, a polyethylene terephthalate film, or the like can be used. In addition, the thickness and width of the protective film are not particularly limited, but from the viewpoint of being used as a protective film for a polarizing film, for example, a thickness of 5 μm or more and 50 μm or less, 200 mm or more and 1500 mm or less. A protective film having a width can be preferably used.

  The direction changing roller is a member that changes the conveyance direction of the polarizing film 11 unwound from the original roll so as to be along the conveyance direction A of the liquid crystal panel 10. The direction change roller will be described in detail with reference to FIG.

  The half cutter 5 is a member for performing a so-called half cut in which the film 11b other than the protective film 11a on one side of the polarizing film 11 is cut and the protective film 11a is not cut. The half cutter 5 cuts the film 11 b into a suitable size for bonding to the liquid crystal panel 10. The film 11b after the half cut is in a state of being in contact with the protective film 11a via the adhesive, and is not peeled off from the protective film 11a. In addition, when the protective film is provided in both the outer surfaces of the polarizing film 11, the half cutter 5 cut | disconnects films other than one protective film 11a.

  FIG. 2 is a side view showing the vicinity of the knife edge 6. As shown in FIG. 2, the protective film 11a is peeled off from the film 11b along the knife edge 6 and wound up by the winding unit 7 in FIG. The winding unit 7 has chucking, and winds the protective film in a roll shape around a protective film core (paper tube, resin tube, metal tube, or the like) fixed by chucking. It is the same as that of the exit part 2 * 3.

  The polarizing film from which the protective film has been peeled is pressed against the liquid crystal panel 10 by the two nip rollers 8, and the polarizing film is bonded to the lower surface of the liquid crystal panel 10.

  The upper surface of the liquid crystal panel 10 is reversed to the lower surface by the reversing mechanism 9 and the major axis direction of the liquid crystal panel 10 along the transport direction A is reversed so as to be orthogonal to the transport direction A. Examples of the reversing mechanism 9 include a structure having a suction portion that sucks the liquid crystal panel 10 together with air, or a robot arm structure.

  Further, a polarizing film is also applied to the lower surface of the liquid crystal panel 10 by the unwinding portions 12 and 13, the direction changing roller 14, the half cutter 15, the knife edge 16, the winding portion 17, and the two nip rollers 18 in the same manner as described above. Bonding is performed to obtain an optical display device.

  FIG. 3A is a perspective view showing the direction changing roller 4. In FIG. 3A, the part before a conveyance direction is changed among the polarizing films is represented as a polarizing film 11c, and the part after the conveyance direction is changed by the direction changing roller 4 is represented as a polarizing film 11d.

  The direction changing roller 4 is installed on the base 4a and supported by the two columns 4b. A drive mechanism (not shown) is installed on the base 4a, and the direction changing roller 4 is movable together with the base 4a by the drive mechanism. Moreover, the support | pillar 4b ensures the clearance gap between the base part 4a and the direction change roller 4, and has a structure which can pass a polarizing film.

  The direction changing roller 4 is disposed along the polarizing film 11c whose transport direction is not changed. That is, the direction changing roller 4 is disposed along one of the two maximum surfaces of the polarizing film 11c. Here, “arranged along the polarizing film 11c” includes both the case where it is in contact with the polarizing film 11c and the case where it is arranged apart from the polarizing film 11c.

  More specifically, the direction changing roller 4 is a contact-type guide roll that does not eject air, and is in contact with the polarizing film 11c. On the other hand, as a modification of the direction changing roller 4, a non-contact type guide roll that injects air to the polarizing film can also be used (not shown). In this case, the direction changing roller has a conveyance direction before the change. It arrange | positions away from a polarizing film.

  Moreover, FIG.3 (b) is a top view which shows the positional relationship of the direction change roller 4 and the polarizing film 11c. More specifically, the direction changing roller 4 may be disposed so as to be 40 ° or more and 50 ° or less with respect to the conveyance direction B of the polarizing film 11c, and more preferably 42 ° or more and 47 ° or less. More preferably, it is not less than 44 ° and not more than 46 °, most preferably not less than 44.5 ° and not more than 45.5 °, and is arranged at 45 ° in FIG. Here, “the direction changing roller 4 is disposed so as to be 40 ° or more and 50 ° or less with respect to the conveyance direction B of the polarizing film 11c”, in other words, “the direction changing roller when seen in a plan view”. 4 can be said that the imaginary line 4c obtained by projecting the axis of the direction changing roller 4 onto the polarizing film 11c and the transport direction B are 40 ° or more and 50 ° or less.

  The polarizing film 11 c is wound around the direction changing roller 4 in the process of being conveyed, and the conveying direction is changed by about 45 ° along the direction changing roller 4. By this change, the conveyance direction C of the polarizing film 11d is included on the same plane including the conveyance direction A, and the film 11b and the liquid crystal panel 10 can be bonded as shown in FIG. .

  Conventionally, when the manufacturing system is viewed in plan (viewed from above), the unwinding unit is installed so that the “conveying direction” of the original roll (polarizing film) is along the conveying direction of the liquid crystal panel. On the other hand, according to the design of the present invention, the unwinding portion can be installed so that the “width direction” of the original fabric rolls 2a and 3a (polarizing film) is along the transport direction A of the liquid crystal panel.

  The inventor has focused on this point and found that the unwinding portions 2 and 3 are installed avoiding the lower side of the transport mechanism 1. A space 20 is shown below the transport mechanism 1. In the manufacturing 100 system including the direction changing roller 4, the unwinding units 2 and 3 are not disposed in the space 20 below the transport mechanism 1, and the two unwinding portions disposed below the transport mechanism 1 are not provided. The total length of the manufacturing system for the installation space is shortened. Furthermore, since the transport mechanism 1 is not disposed above the unwinding units 2 and 3, the transport mechanism 1 can be set at a low position, and the overall height of the manufacturing system is shortened. As a result, it is possible to provide a manufacturing system that has a reduced overall length and height.

  From the viewpoint of downsizing the manufacturing system, the unwinding portions 2 and 3 are preferably provided in the space 20. More specifically, the unwinding parts 2 and 3 are installed within 2 m from the space 20, and more preferably within 1 m. Note that the distance from the space 20 indicates the distance in the horizontal direction.

  FIG. 4 is a plan view showing the manufacturing system 100. As shown in the figure, when the production system 100 is viewed in plan (viewed from above), the unwinding sections 2 and 3 are such that the width direction D of the original fabric rolls 2a and 3a (polarizing film) is along the transport direction A. Thus, the raw fabric rolls 2a and 3a are held. According to this arrangement, space can be suitably saved when installing the unwinding sections 2 and 3, for example, compared with an arrangement in which the width direction of the raw fabric rolls 2 a and 3 a is orthogonal to the conveyance direction A. Thus, it is possible to provide a manufacturing system that is remarkably space-saving.

  FIG. 5 is a cross-sectional view taken along the a-a ′ section of the manufacturing system 100, and shows the manufacturing system 100 from the a-a ′ section toward the transport direction A. As a preferred form, the unwinding portions 2 and 3 are arranged so as to be vertically above each other. In this way, by arranging the unwinding portions 2 and 3 along the transport direction A and so as to be vertically above each other, in a direction that is horizontal and orthogonal to the width direction of the original fabric roll. It is possible to keep the size of the manufacturing system very small. In other words, the manufacturing system 100 of the present invention is shortened not only in the overall length and the overall height but also in the overall width, and it can be said that the production system 100 is very downsized.

  In the manufacturing system 100, in order to make it easy to connect the polarizing films to each other, the unwinding portions 2 and 3 are provided as a preferable form. Specifically, “the unwinding portions 2 and 3 are provided side by side” means that “the unwinding portions 2 and 3 are opposed to each other and the width directions of the original rolls 2a and 3a are parallel to each other. Thus, the unwinding portions 2 and 3 are arranged ". With this arrangement, the polarizing films unwound from the both rolls can take the same transport path and have an advantage that the polarizing films are easily connected to each other. The unwinding portions 2 and 3 that are in a vertical relationship are included in the state of being provided side by side.

  Moreover, the manufacturing system 100 is equipped with the adsorption | suction part 21,22,31 * 32 and the cutting bonding part 23 * 33 which are film connection mechanisms from a viewpoint of supplying a film continuously. The adsorbing portions 21, 22, 31, and 32 are members that adsorb the polarizing film, and have a structure that generates an adsorbing force by sucking air, for example.

  The cutting bonding parts 23 and 33 have three surfaces which can be rotated, one surface is a cutting surface, and two surfaces are bonding surfaces. The cut surface is formed with a cutting groove through which a cutter (not shown) passes so that the polarizing film adsorbed by the adsorbing portions 21 and 22 can be cut, and the polarizing film is cut by the cutter. Then, the adsorption | suction by the adsorption | suction part 21 is cancelled | released, and after the cutting | disconnection bonding part 23 leaves | separates from a polarizing film, it will rotate and it will be in the state which the bonding surface opposed the polarizing film. The bonding surface has an adsorption structure, and the structure is the same as that of the adsorption part 21. The bonding surface adsorbs an adhesive material such as a single-sided tape, and the non-adhesive surface of the adhesive material is adsorbed to the bonding surface so that the adhesive surface of the adhesive material adheres to the polarizing film. And the bonding surface of the cutting bonding part 23 approaches a polarizing film, a single-sided tape is pasted beyond the cut surface of a polarizing film, and a polarizing film is fixed to a single-sided tape.

  On the other hand, the newly bonded polarizing film of the roll 3a is already cut at the line side by the cutting and bonding part 33, and the single-sided tape is pasted on the unwinding part 3 side beyond the cut surface and fixed to the single-sided tape. Has been. And the adsorption | suction part 21 * 22, the cutting | disconnection bonding part 23, the adsorption | suction part 31 * 32, and the cutting | disconnection bonding part 23 mutually approach, and the polarizing film of the line side and the polarizing film of the unwinding part 3 side are affixed. Combined. In addition, although the said bonding method is a preferable form, from a viewpoint of simplification of an apparatus etc., you may connect a polarizing film by an operator, without employ | adopting a film connection mechanism.

  FIG. 6 is a cross-sectional view taken along the arrow showing a modification of the unwinding portion. As shown in the figure, the two unwinding portions may be a turret type. The turret type unwinding portions 52 and 53 are provided on a shaft portion 54 that rotates the unwinding portions 52 and 53 along a vertical plane. When the amount of the original roll 52a becomes small, the original roll 52a moves to the rear in the conveying direction of the polarizing film, and the original roll 53a moves to the front in the conveying direction of the polarizing film. The polarizing film 53a is connected with an adhesive tape or the like. Finally, the polarizing film of the original fabric roll 52a is cut, and the film connection is completed.

  In the manufacturing system 101, although the turret type unwinding part is used, the unwinding part is installed avoiding the lower part of the conveyance mechanism. That is, since the transport mechanism 1 is not disposed above the unwinding parts 52 and 53, the overall height of the manufacturing system 101 can be kept low.

  The manufacturing system which concerns on this invention can be set as the structure provided with the structure which correct | amends the position of a polarizing film. First, when correcting the position of the polarizing film on the conveying direction side of the polarizing film from the direction changing roller, the manufacturing system includes a sensor that detects the position of the polarizing film on the conveying direction side of the polarizing film from the direction changing roller, Based on the detection signal of this sensor (the detection signal may be detection information or detection data), it is only necessary to further include a correction mechanism for correcting the position of the unwound polarizing film. Such a correction mechanism will be described with reference to FIG.

  FIG. 7A is a side view showing a meandering correction roller (correction mechanism) and an end face detection sensor (sensor) according to the present invention. As shown in the figure, the polarizing film 11d whose conveyance direction has been changed passes through the guide roller 60 and passes through the meandering correction roller 61 (wound). The meandering correction roller 61 is provided with position adjusting portions (not shown) at both ends, and the position of the meandering correction roller 61 can be adjusted. Moreover, the end surface detection sensor 62 is provided in the conveyance direction C side of the polarizing film from the direction change roller.

  The position correction of the polarizing film will be specifically described. As shown in FIG. 7B, when the center of the polarizing film 11d is a desired position, position correction is not necessary.

  Next, as shown in FIG. 7C, when the polarizing film 11d is shifted to the right side (the end surface side where the end surface detection sensor 62 is installed) from the desired transport position, the end surface detection sensor 62 detects the shift. To do. As the end face detection sensor 62, for example, a sensor that detects the end face of the polarizing film 11d using ultrasonic waves or air pressure can be employed. This deviation is transmitted to the meandering correction roller 61 as a detection signal, and is transmitted to the receiving unit of the meandering correction roller 61.

  The polarizing film 11d is shifted to the end face side where the end face detection sensor 62 is installed. For this reason, the position adjusting unit installed on the opposite side to the end surface on which the end surface detection sensor 62 is installed, and the portion of the meandering correction roller 61 opposite to the end surface on which the end surface detection sensor 62 is installed, and the polarizing film 11d. The meandering correction roller 61 is adjusted so as to be separated from each other. Thereafter, due to the tension applied to the polarizing film 11d, the polarizing film 11d moves to the left side (the side opposite to the end face where the end face detection sensor 62 is installed).

  When the polarizing film 11d is shifted to the left from the desired transport position (FIG. 7 (d)), the end face detection sensor 62 is installed in the meandering correction roller 61, contrary to the case of FIG. 7 (c). The meandering correction roller 61 is adjusted so that the end face side portion and the polarizing film 11d are separated from each other. Thereafter, the polarizing film 11d moves to the right side (the end face side where the end face detection sensor 62 is installed) by the tension applied to the polarizing film 11d.

  When correcting the position of the polarizing film on the side opposite to the direction of conveyance of the polarizing film from the direction changing roller, the manufacturing system uses a sensor that detects the position of the polarizing film on the side opposite to the direction of conveyance of the polarizing film from the direction changing roller. Provided that the unwinding unit includes a correction unit that corrects the position of the unwound polarizing film based on the detection signal of the sensor (the detection signal may be detection information or detection data). Good.

  The sensor is the same as the end face detection sensor 62 except that the installation position is different. As a correction | amendment part, it can be set as the structure which moves an unwinding part to the width direction of an original fabric roll, for example.

  According to the configuration for correcting the position of the polarizing film described above, it is possible to appropriately return the film to a desired position even if a deviation occurs in the direction in which the polarizing film is conveyed by the direction changing roller.

  In addition, the manufacturing systems 100 and 101 have a structure in which a polarizing film is bonded from below the liquid crystal panel, but the transport mechanism 1 is installed below the manufacturing system and the polarizing film is bonded from above the liquid crystal panel. It is good also as a structure.

  In addition, it is of course possible to adopt the configuration of the conventional unwinding part not described in the present specification as long as the essence of the present invention is not impaired, and the manufacture according to the present invention based on the technical common sense possessed by those skilled in the art. It is possible to change the configuration of the system as appropriate.

  The present invention can be used in the field of using an optical display device.

1 Transport mechanism 2, 3, 12, 13, 52, 53 Unwinding part 2a, 3a, 12a, 13a, 52a, 53a Raw roll 4, 14 Direction change roller 7, 17 Winding part 8, 8 Nip roller (bonding) Part)
10 Liquid crystal panel 11 Polarizing film 11b Film (polarizing film from which protective film was peeled off)
11c Polarizing film (Polarizing film before changing transport direction)
11d Polarizing film (polarizing film after changing transport direction)
20 space 60 meandering correction roller (correction mechanism)
62 End face detection sensor (sensor)
100 ・ 101 Manufacturing System A Transport direction (Transport direction of LCD panel)
B Conveying direction (Conveying direction of polarizing film before changing the conveying direction)
D Width direction (width direction of the original roll)

Claims (6)

An optical display device manufacturing system for laminating a polarizing film on a liquid crystal panel,
A transport mechanism for transporting the liquid crystal panel;
An unwinding unit that holds the roll of the polarizing film and unwinds the polarizing film;
A direction changing roller for changing the transport direction of the polarizing film unwound from the unwinding section so as to follow the transport direction of the liquid crystal panel;
It has a bonding part that bonds the polarizing film and the liquid crystal panel,
When the production system is viewed in plan, the unwinding part holds the original roll so that the width direction of the original roll is along the transport direction of the liquid crystal panel,
The manufacturing system according to claim 1, wherein the unwinding part is arranged so as to avoid a lower side of the transport mechanism.   The said direction change roller is arrange | positioned so that a conveyance direction may be 40 degrees or more and 50 degrees or less with respect to the conveyance direction of the said polarizing film along the polarizing film before a change. Item 2. The manufacturing system according to Item 1. With two unwinding sections,
The two unwinding portions are arranged so that the two unwinding portions are opposed to each other and the width directions of the raw rolls held by the two unwinding portions are parallel to each other. The manufacturing system according to claim 1 or 2, characterized by the above-mentioned.   The manufacturing system according to claim 3, wherein the two unwinding portions are arranged so as to be above and below each other. A sensor for detecting the position of the unwound polarizing film is provided on the conveying direction side of the polarizing film from the direction changing roller,
The manufacturing system according to claim 1, further comprising a correction mechanism that corrects a position of the unwound polarizing film based on a detection signal of the polarizing film from the sensor. A sensor for detecting the position of the unwound polarizing film is provided on the opposite side of the polarizing film from the direction changing roller,
The correction part which correct | amends the position of the unwound polarizing film based on the detection signal of the polarizing film from the said sensor is provided in the said unwinding part, The any one of Claims 1-5 characterized by the above-mentioned. The manufacturing system according to item.

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