KR101633205B1 - Method for continuously manufacturing optical display panel, continuous manufacturing system for same, exchange method, and delivery device - Google Patents

Abstract

The space occupied by the entire system can be reduced. A continuous manufacturing method of an optical display panel includes a switching step of switching rolls of old and new rolls, a carrier film transporting step of transporting a strip-shaped carrier film, an optical cell transporting step of transporting optical cells, And a joining step of joining the optical film to the optical cell to form an optical display panel while conveying the optical cell, wherein the switching step is a step of joining the first and second rolls And a step of installing the second roll fed next to the second feeding part in parallel to the conveying direction of the strip-shaped carrier film.

Description

TECHNICAL FIELD The present invention relates to a continuous manufacturing method of an optical display panel, and a continuous manufacturing system, a switching method, and a feeding apparatus for the same. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a continuous manufacturing method of an optical display panel and a continuous manufacturing system of an optical display panel having a switching process of switching the rolls of old and new by attaching from a first roll being currently fed to a second roll being fed out next. The present invention also relates to a switching method for switching the roll, and a feeding device for feeding the roll.

There is known a manufacturing system for continuously producing an optical display panel at a high speed by continuously supplying optical cells, continuously supplying a polarizing film from a roll, and continuously joining polarizing films to optical cells. In this system, in order to continuously supply the polarizing film from the roll, it is necessary to attach the polarizing film to the next roll. Conventionally, a device has been disclosed in which two rolls are provided, and the other roll film is connected when the remaining amount of the film of one roll is reduced, thereby enabling the continuous supply of the polarizing film (for example, Patent Document 1, 2).

Japanese Patent Application Laid-Open No. 2011-123208 Japanese Patent Application Laid-Open No. 11-154340

However, in Patent Documents 1 and 2, when the roll is installed on the feeding shaft, the roll is moved parallel to the axial direction (width direction) of the feeding shaft, and the roll is provided on the feeding shaft. That is, the roll is moved from the direction (width direction) orthogonal to the film conveying direction to the feeding shaft. Therefore, in addition to the installation space of the feeder, a work space for installing the roll in the width direction is required, and as a result, the occupation space of the entire system is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and provides a continuous manufacturing method of an optical display panel and a continuous manufacturing system of an optical display panel which can reduce occupation space of the entire system. Further, a switching method and a feeding device capable of reducing occupation space are provided.

In order to solve the above problems, as a result of intensive studies, the present invention has been completed as follows. That is, in the continuous manufacturing method of the optical display panel of the present invention,

A transfer step of transferring the carrier film from the first roll on which the carrier film is fed out to the second roll on which the carrier film is fed out,

A carrier film transporting step of transporting a strip-shaped carrier film from which the optical film containing the pressure-sensitive adhesive is laminated,

An optical cell transporting step of transporting the optical cell,

A peeling step of peeling the optical film from the carrier film by folding the carrier film conveyed by the carrier film conveying step inward,

And a bonding step of bonding the optical film peeled off from the carrier film in the peeling step to the optical cell via the adhesive while transporting the optical cell to form an optical display panel,

In the switching step,

Shaped carrier film in a direction parallel to the conveying direction of the strip-shaped carrier film to the second feeding portion provided in parallel with the first feeding portion provided with the first roll being currently fed out .

According to this configuration, it is not necessary to provide a working space for installing a new roll in the feeding portion in the width direction of the feeding portion, so that the occupation space of the entire system can be reduced.

In one embodiment of the present invention,

Wherein the first axis of rotation and the axis of rotation of the second axis are parallel to the axis of the first axis and the axis of the second axis of rotation of the first axis and the axis of the second axis, The feeding rollers of the second feeding portion are rotated so that the position of the first roll and the position of the second roll are exchanged and the second feeding portion is positioned on the side opposite to the feeding line of the carrier film with respect to the first feeding portion Comprising a rotating process,

Wherein the installing step moves the second roll in parallel with the conveying direction of the carrier film from the conveying line of the carrier film to the feeding device having the first feeding portion and the second feeding portion, And the second roll is provided on the feeding axis of the second feeding portion.

According to this configuration, since the position of the first roll can be exchanged with the position of the second roll, it is possible to prevent the position of the carrier film from being shifted from the feeding device (the first feeding portion and the second feeding portion) The new roll can be switched. As a result, it is necessary to form a space for moving a new roll between the feeding portion and the conveying line (in particular, a line for conveying the film in the vertical direction) of the carrier film or a working space for setting the moving roll to the feeding shaft The space occupied by the entire system can be greatly reduced.

A continuous manufacturing system of an optical display panel of another invention,

A feeding device having a first feeding part for feeding a first roll to which a carrier film is fed at first and a second feeding part for feeding a second roll to which the carrier film is fed next to the first feeding part;

A carrier film conveying section for conveying a belt-like carrier film, which is fed from a first roll provided in the first feeding section and on which an optical film including a pressure-sensitive adhesive is laminated,

An optical cell conveyance section for conveying the optical cell,

A peeling unit for folding the carrier film conveyed by the carrier film conveying unit inward and peeling the optical film from the carrier film;

And a bonding portion for bonding the optical film peeled off from the carrier film in the peeling portion to the optical cell through the adhesive to form an optical display panel while carrying the optical cell,

The feeding device has a structure capable of moving the second roll, from which the carrier film is fed out, next to the feeding direction in parallel to the second feeding portion.

According to this configuration, it is not necessary to provide a working space for installing a new roll in the feeding portion in the width direction of the feeding portion, so that the occupation space of the entire system can be reduced.

According to an embodiment of the present invention,

Wherein the first axis of rotation and the axis of rotation of the second axis are parallel to the axis of the first axis and the axis of the second axis of rotation of the first axis and the axis of the second axis, The feeding rollers of the second feeding portion are rotated so that the position of the first roll and the position of the second roll are exchanged and the second feeding portion is positioned on the side opposite to the feeding line of the carrier film with respect to the first feeding portion And the second roll is moved in parallel with the conveying direction of the carrier film from the conveying portion of the carrier film to the feeding device so that the second roll is conveyed to the second feeding portion So that it can be installed.

According to this configuration, since the position of the first roll and the position of the second roll can be exchanged, it is possible to prevent the conveying line of the carrier film from moving to the feeding device (the first feeding portion and the second feeding portion) You can switch roles. As a result, it is necessary to form a space for moving a new roll between the feeding portion and the conveying line (in particular, a line for conveying the film in the vertical direction) of the carrier film or a working space for setting the moving roll to the feeding shaft The space occupied by the entire system can be greatly reduced.

According to one embodiment of the present invention, the first feeding portion and the second feeding portion are arranged in a superposition below a conveying line for conveying the optical cell.

In this configuration, the length (dimension) of the entire manufacturing system can be shortened in order to provide the first leading portion (first roll) and the second leading portion (second roll) under the conveying line of the optical cell.

In one embodiment of the present invention,

A stopping step of stopping the rotation of the feeding shaft of the first feeding portion after the setting step,

A cutting step of cutting while holding the carrier film in a stopped state in the stopping step,

A rotating step of rotating the center of the line connecting the feeding axis of the first feeding portion and the feeding axis of the second feeding portion to exchange the position of the first roll and the position of the second roll,

A joining step of joining the rear end of the carrier film held in the state after cutting in the cutting step and the front end of the carrier film of the second roll,

And releasing the holding state of the strip-shaped carrier film after the splicing process.

Another invention is a switching method for switching a roll of a new or old roll by attaching a first roll from which the film is currently being fed to a second roll from which the film is then fed out,

Wherein the second roll, from which the film is next fed, is moved in parallel with the transport direction of the film to the second feed portion provided in parallel to the first feed portion provided with the first roll being currently fed Process.

The switching method of the present invention may be a method of continuously producing an optical display panel according to the present invention, for example, by cutting a strip-shaped optical film (or a laminated optical film) fed from a roll to form a plurality of single optical films A laminated optical film), a method of producing a strip-shaped optical film by providing a strip-shaped film fed from a roll to a process such as coating, drawing, and the like.

In one embodiment of the present invention,

Rotating the first feeding axis and the second feeding axis about the central axis parallel to the first feeding axis and the second feeding axis and between the first feeding axis and the second feeding axis, And a rotating step of exchanging the position of the roll and the position of the second roll and positioning the second feeding portion on the side opposite to the feeding line of the film with respect to the first feeding portion.

According to another aspect of the present invention, there is provided a film forming apparatus comprising: a first feeding portion provided with a first roll on which a film is fed at present; and a second feeding portion provided with a second roll provided in parallel with the first feeding portion, And,

And the second roll, from which the film is fed out, is moved in parallel with the conveying direction of the film so as to be installed in the second feeding portion.

In one embodiment of the present invention,

Rotating the first feeding axis and the second feeding axis about the central axis parallel to the first feeding axis and the second feeding axis and between the first feeding axis and the second feeding axis, And a rotating mechanism for exchanging the position of the roll and the position of the second roll and for positioning the second feeding portion on the side opposite to the feeding line of the film with respect to the first feeding portion.

The feeding apparatus of the present invention can be applied to a system for continuously producing an optical display panel of the present invention by cutting a strip-shaped optical film (or a laminated optical film) fed from a roll, for example, A laminated optical film), a system for producing a strip-shaped optical film by providing a strip-shaped film fed from a roll to a process such as coating and drawing.

1 is a schematic view showing a continuous manufacturing system of an optical display panel according to Embodiment 1. Fig.
2 is a schematic view showing a feeding device of Embodiment 1. Fig.
Fig. 3A is a view showing an installation process of Embodiment 1. Fig.
Fig. 3B is a view showing an installation process of the second embodiment; Fig.
4A is a diagram showing a sequence example of a switching process;
4B is a diagram showing a sequence example of a switching process;
4C is a diagram showing a sequence example of a switching process;
FIG. 4D is a diagram showing a sequence example of a switching process; FIG.
4E is a diagram showing a sequence example of a switching process;

In the present embodiment, the form in which the optical film is formed on the carrier film is not particularly limited. For example, it may be configured to be wound in a roll shape. Examples of the roll include (1) a roll of a laminated optical film having a carrier film and a strip-shaped optical film formed on the carrier film through a pressure-sensitive adhesive. In this case, in order to form an optical film from a strip-shaped optical film, the continuous production system of the optical display panel may be configured such that the strip-shaped optical film and the pressure-sensitive adhesive are cut at predetermined intervals Cut in half). The optical film after cutting the strip-shaped optical film is a single piece of a predetermined size, for example, a rectangular shape (rectangular, square).

As the roll, for example, (2) a laminated optical film having a carrier film and a strip-shaped first optical film formed on the carrier film with a pressure-sensitive adhesive interposed therebetween is wound in a roll form (a laminated optical film Roll). Examples of the optical film include a polarizer film, a brightness enhancement film, a retardation film, and an optical film obtained by laminating two or more thereof.

1 includes a first carrier film 12 and a strip-shaped first polarizing film 11 (an example of an optical film) laminated on the first carrier film 12, The first laminated optical film 10 is wound in a roll form. The first polarizing film 11 has a film body 11a and a pressure-sensitive adhesive layer 11b.

The polarizing film is formed, for example, with a polarizer film (with a thickness of about 1.5 to 80 占 퐉) and a polarizer protective film (with a thickness of about 1 to 500 占 퐉) on one surface or both surfaces of the polarizer film without an adhesive or an adhesive. As the other films constituting the first laminated optical film 11, for example, a retardation film such as a? / 4 plate and a? / 2 plate (thickness is generally 10 to 200 占 퐉), a viewing compensation film, And surface protective films. The thickness of the laminated optical film may range, for example, from 10 탆 to 500 탆. The pressure-sensitive adhesive interposed between the polarizing film and the carrier film is not particularly limited, and examples thereof include acrylic pressure-sensitive adhesives, silicone pressure-sensitive adhesives, and urethane pressure-sensitive adhesives. The layer thickness of the pressure-sensitive adhesive is preferably in the range of, for example, 10 탆 to 50 탆. As the peeling force of the pressure-sensitive adhesive and the carrier film, for example, 0.15 (N / 50 mm wide sample) is exemplified, but it is not particularly limited thereto. The peel force is measured in accordance with JIS Z0237.

As the carrier film, conventionally known films such as a plastic film (for example, a polyethylene terephthalate film, a polyolefin film, etc.) can be used. Further, if necessary, a suitable one conventionally used may be used, such as one obtained by coating with a suitable releasing agent such as silicone, long-chain alkyl, or fluorine-based molybdenum sulfide.

In the optical display panel, at least an optical film is bonded to one side or both sides of the optical cell via an adhesive, and a driving circuit is built in if necessary. The optical cell includes, for example, a liquid crystal cell and an organic EL cell. As the liquid crystal cell, any type of liquid crystal cell such as a vertically aligned (VA) type or an in-plane switching (IPS) type may be used. As the organic EL cell, for example, any type of top emitter type, bottom emitter type, double emitter type, or the like can be used. The liquid crystal cell P shown in Fig. 1 is a structure in which a liquid crystal layer is sealed between a pair of substrates arranged opposite to each other (a first substrate Pa and a second substrate Pb).

≪ Embodiment 1 >

Hereinafter, a continuous manufacturing system of the optical display panel according to the present embodiment will be described concretely with reference to the drawings, but the present invention is not limited to this embodiment mode. A liquid crystal cell will be described as an optical cell, and a polarizing film will be described as an optical film. Hereinafter, Fig. 1 is a schematic view of a continuous manufacturing system of an optical display panel according to the present embodiment. 1, the feeding device 30 is arranged below the conveying line X for conveying the liquid crystal cell by the liquid crystal cell conveying portion 80. In Fig. 2 is a view for explaining a feeding device. 3A is a diagram showing the moving direction Z of the second roll R2 in the installation step. 4A to 4E are diagrams for explaining the procedure of the switching process (process).

The continuous manufacturing system 1 of the optical display panel according to the present embodiment is provided with the feeding device 30, the first carrier film conveying portion 20, the first peeling portion 40, the liquid crystal cell conveying portion 80, The first bonding roll 50a (the first bonding roll 50a, the first driving roll 50b), the second liquid crystal cell carrying portion, the second carrier film carrying portion, the second peeling portion, and the second A joining portion (a second joining roll, a second driving roll), and an optical display panel conveying portion. In this embodiment, the polarizing film 111 is bonded from the lower side (first side Pa) of the liquid crystal cell P, and then the liquid crystal display panel LD in which the polarizing film 111 is bonded is reversed 90 degrees), and the polarizing film is bonded from the lower side (second surface Pb) of the liquid crystal cell P.

The liquid crystal cell conveying section 80 conveys the liquid crystal cell P from the upstream of the conveyance to the joining position of the first joining section 50. In the present embodiment, the liquid crystal cell conveying section 80 comprises a conveying roller or an attracting plate. The liquid crystal cell P is conveyed to the downstream side of the production line by rotating the conveying roller or conveying the attracting plate.

The feeding device 30 includes a first feeding portion 33 provided with the first roll R1 and a second feeding portion 34 provided in parallel with the first feeding portion 33 and provided with the second roll R2 (See Fig. 2). The feeding device 30 of the present embodiment is disposed between the feeding axis a1 of the first feeding portion 33 and the feeding axis a2 of the second feeding portion 34 and the feeding axis a1 of the first feeding portion 33, The feeding axis a1 of the first feeding portion 33 and the feeding axis a2 of the second feeding portion 34 are rotated about the center axis 31a parallel to the feeding axis a2 of the second feeding portion 34, The position of the first roll R1 (corresponding to the position of a1) and the position of the second roll R2 (corresponding to the position of a2) are exchanged and the second feeding portion 34 is rotated with respect to the first feeding portion 33 And a rotation mechanism (31) for positioning the carrier film on the side opposite to the conveyance line. In Fig. 2, the rotation locus of the feeding axes a1 and a2 at this rotation is denoted by D1, and the outermost rotational locus of the first and second rolls R1 and R2 is denoted by D2. In Fig. 1, the feeding device 30 is arranged (overlapped) under the conveying line X for conveying the liquid crystal cell by the liquid crystal cell conveying portion 80. In Fig. The length of the device from the feeding device 30 to the first bonding portion 50 is denoted by L and the height of the device from the lower end of the feeding device 30 to the carrying line X is denoted by H. In Embodiment 1, the apparatus length L is shortened and the apparatus height H is made high.

The first carrier film conveying section 20 has a strip-shaped polarizing film 11 which is fed from the first and second rolls R1 and R2 provided in the first feeding section 33 or the second feeding section 34 The stacked first carrier film 12 is conveyed (the laminated optical film 10 is conveyed). In the present embodiment, the first carrier film carrying section 20 is formed by leaving (without cutting) the first carrier film 12 in strip form, out of the first laminated optical film 10 fed from the first roll R1, And a first cut portion 25 for cutting the strip-shaped first polarizing film 11 at predetermined intervals and for forming a first polarizing film 111 on the first carrier film 12. The first polarizing film 111 is peeled from the first carrier film 12 in the first peeling section 40 to be described later and supplied to the first bonding section 50. Therefore, the first carrier film transfer section 20 includes a first dancer roll 22 disposed between the feeding device 30 and the first cut section 25, a first cut section 25, a first cut section 25 A second dancer roll 24 disposed on the downstream side of the conveyance of the first rollers 25, and a first winding section 28. [ The first carrier film conveying section 20 is configured to convey the first carrier film 12 (the first laminated optical film 10) on the upstream side of conveyance or on the downstream side of conveyance relative to the first peeling section 40, (29a, 29b).

When the first dancer roll 22 is switched from the first roll R1 to the second roll R2, the conveyance of the first carrier film 12 is stopped by feeding out the accumulated first carrier film 12 .

The first cut portion 25 fixes the first laminated optical film 10 from the first carrier film 12 side in the attracting portion 26 and supports the strip-shaped first polarizing film 11 to the liquid crystal cell P And the first polarizing film 111 is formed on the first carrier film 12. [ Examples of the first cut portion 25 include a cutter and a laser device.

The second dancer roll 24 has a function of maintaining the tension of the first carrier film 12 in each process such as a transporting process and a bonding process. The first carrier film transport section 20 transports the first carrier film 12 through the second dancer roll 24. A feed roll 27 is disposed between the second dancer roll 24 and the first cut 25.

The first peeling section 40 is formed by folding the first carrier film 12 conveyed by the first carrier film conveying section 20 inward and peeling the first polarizing film 111 from the first carrier film 12 do. The peeled first polarizing film 111 is fed to the bonding position of the first bonding portion 50. In the present embodiment, as the first peeling section 40, a sharp knife edge portion is used at the tip end portion, but it may be a roller portion or the like, but is not limited thereto.

The first winding section 28 has a winding roller (not shown), and winds the first carrier film 12 on which the first polarizing film 111 is peeled off to the winding roller.

The first bonding portion 50 bonds the first polarizing film 111 peeled off from the first carrier film 12 to the liquid crystal cell P (first surface Pa) via the adhesive while conveying the liquid crystal cell P, Thereby forming the panel LD. In the present embodiment, the first joining portion 50 is constituted by a first joining roller 50a and a first driving roller (supporting roller) 50b.

The first polarizing film 111 is sent to the bonding position by the winding path of the first carrier film 12 (or by the feed roller 29) by the first winding section 28. On the other hand, the liquid crystal cell P is conveyed by the rotation of the first driving roller 50b and the first joining roller 50a, and the first polarizing film 111 is bonded to the liquid crystal cell surface at the same time of this conveyance.

<Conversion step>

Next, the conversion process will be described. First, a first roll R1 is provided in the first feeding portion 33 of the feeding device 30 and is provided for manufacturing. When the first roll R1 is used and the remaining amount thereof is reduced, the second roll R2 is installed in the feeding device 30. [ 3A, the second roll R2 is moved in parallel with the conveying direction Y of the first carrier film 12 from the conveying line of the first carrier film 12 with respect to the feeding device 30 (In the moving direction Z), and the second roll R2 is set in the second feeding portion 34. [

The switching process will be described with reference to Figs. 4A to 4E. The continuous manufacturing system 1 includes a holding portion 36 disposed on the downstream side of the feeding device 30 for holding the first carrier film 12 (the first laminated optical film 10) And a nip roll portion 38 which is disposed downstream of the holding portion 36 on the conveyance downstream side and which supports and supports the first carrier film 12 (optical film laminate 10).

First, after the installation step, the rotation of the feeding axis a1 of the first feeding portion 33 is stopped (stopping step). 4A, a pair of first and second adsorption plates 36a and 36b are nipped in the nip roll section 38 while the first laminated optical film 10 is in a non-rotating state. Subsequently, The first laminated optical film 10 is held on one side by the holding portion 36 having the first holding film 36 and the second holding film 36. The first and second adsorption plates 36a and 36b at the original position move to a position where they adsorb one surface of the first laminated optical film 10. Subsequently, in the state in which the first carrier film 12 (first laminated optical film 10) in a stopped state in the stopping process is adsorbed, a portion of the gap portion of the first and second adsorption plates 36a and 36b 1 Carrier film 12 is cut (cutting step). As shown in Fig. 4B, the first cut film portion B of the first laminated optical film 10 cut off is adsorbed by the first adsorption plate 36a, and the other second cut film portion C is adsorbed by the first adsorption plate 36a. 2 adsorption plate 36b. Subsequently, the second cut film portion C is removed between the feeding axis a1 of the first feeding portion 33 and the feeding axis a2 of the second feeding portion 34, (a1) of the first roll R1 and the position (a2) of the second roll R2 are exchanged (rotation process, Fig. 4C) by rotating the central axis 31a parallel to the feeding axis a2. The rotation here may be manual or automatic rotation by a motor (not shown).

Subsequently, the front end F of the laminated optical film of the first cut film part B and the second roll R2 of the first laminated optical film 10 cut in the cutting step is joined (step of attaching). The front end F is drawn from the second roll R2 and the front end F is adsorbed to the second adsorption plate 36b such that the end faces of the first cut film part B and the front end F face each other. As shown in Fig. 4D, a tape T is attached to the first cut film portion B (the front end portion is indicated by the broken line) and the front end portion F (indicated by the broken line), and both are attached. Then, after the step of attaching, the holding state of the first laminated optical film 10 (strip-shaped first carrier film 12) is released (releasing step). The first and second adsorption plates 36a and 36b are returned to their original positions as shown in FIG. 4E. As a result, the film can be transported by the rotation of the nip roll portion 38. Thereby, the laminated optical film of the second roll R2 connected to the first laminated optical film 10 is transported to the downstream side. Further, the first roll R1 is removed from the feeding axis a1.

Next, a case where a polarizing film is bonded to the other surface (second surface Pb) of the liquid crystal cell P will be described. The second liquid crystal cell conveying section conveys the liquid crystal cell P to which the first polarizing film 111 is bonded by the first joining section 50 and supplies the liquid crystal cell P to the second joining section. The second liquid crystal cell conveying section is provided with a reversing mechanism (not shown) for reversing the liquid crystal cell P to which the first polarizing film 111 is bonded (inversion of the front and back sides, if necessary, by 90 degrees). Further, as another embodiment, a rotation mechanism (not shown) for horizontally rotating the liquid crystal cell P to which the first polarizing film 111 is bonded may be provided. In this case, the second polarizing film is bonded to the ceiling side of the liquid crystal cell P.

As described above, various means and apparatuses described above can be used as various means for bonding the polarizing film to the other surface of the liquid crystal cell P. [ The second carrier film conveying section can be constituted by the same device as the first carrier film conveying section and the second joining section can be constituted by the same device as the first joining section. The second peeling portion can be configured similarly to the first peeling portion.

The liquid crystal display panel carrying section (not shown) can be composed of a conveying roller, an attracting plate, and the like, and conveys the liquid crystal display panel LD manufactured by the second joining section downstream. An inspection device for inspecting the liquid crystal display panel LD may be provided on the downstream side of the conveyance. The inspection purpose and inspection method of the inspection apparatus are not particularly limited.

&Lt; Embodiment 2 >

As shown in Fig. 3B, the feeding apparatus of the second embodiment does not have the rotating mechanism 31. [ The second roll R2 is moved from the side opposite to the conveying line of the first carrier film 12 to the conveying direction Y of the first carrier film 12 with respect to the feeding device 30 And is installed in the second delivery portion. Subsequently, the film is fed from the second roll R2 toward the roll 381 on which the film of the first roll R1 is spread, and the film stretched over the roll 381 is stuck to the film front end. Attach the film of the second roll R2. Subsequently, the film of the first roll R1 is cut. Further, as in the embodiment, the holding portion 36 having the pair of bars 36a and 36b may be used for splicing.

When the remaining amount of the second roll R2 is reduced, the first roll R1 is moved in parallel with the conveying direction Y of the second carrier film from the conveying line side of the first carrier film 12 with respect to the feeding device 30 To the first delivery portion. The first feeding axis is provided on a rotating base (not shown), and freely rotates in the film feeding direction. The method for converting the film of the second roll R2 into the film of the first roll R1 is the same as the above-mentioned method.

(Continuous manufacturing method)

The continuous manufacturing method of the optical display panel according to the present embodiment is characterized in that a first roll R1 from which the first carrier film is fed is attached to a second roll R2 from which the carrier film is fed out, , A carrier film transporting step of transporting the strip-shaped first carrier film (12), in which the optical film including the pressure sensitive adhesive, fed from the rolls R1 and R2 is laminated, a liquid crystal cell transporting step A peeling step of peeling the first polarizing film 111 from the first carrier film by folding the first carrier film conveyed by the carrier film conveying step inward and conveying the liquid crystal cell P in the peeling step, And a bonding step of bonding the polarizing film 111, which is peeled off from the carrier film 12, to the liquid crystal cell P via a pressure-sensitive adhesive to form the liquid crystal display panel LD.

In the switching step, the second roll R2 fed next to the second feeding portion 34 provided in the first feeding portion 33 provided with the first roll R1 being fed at the present time is moved in the feeding direction of the first carrier film Y in parallel with each other. In the installation step, the second roll R2 is moved in parallel with the conveying direction Y of the first carrier film 12 from the side opposite to the conveying line of the first carrier film 12, (34).

The switching process is performed between the feeding axis a1 of the first feeding portion 33 and the feeding axis a2 of the second feeding portion 34 and the feeding axis a1 and the second feeding portion 34 of the first feeding portion 33, The feeding axis a1 of the first feeding portion 33 and the feeding axis a2 of the second feeding portion 34 are rotated around the central axis 31a parallel to the feeding axis a2 of the first roll R1, (a2) of the second roll R2 is exchanged and the second feeding portion 34 is positioned on the side opposite to the feeding line of the first carrier film 12 with respect to the first feeding portion 33 And a rotating process.

When the polarizing film 111 is bonded to the other substrate of the liquid crystal cell P, the liquid crystal cell P has a turning process of rotating and vertically inverting the liquid crystal cell P. The pivoting step is a step of horizontally rotating and vertically inverting the liquid crystal cell P to which the first polarizing film 111 is bonded by 90 degrees. Further, as the pivoting process, the liquid crystal cell P may be inverted about one axis which is not parallel to either the long side or the short side so that the positional relationship between the long side and the short side of the liquid crystal cell P is reversed. The second bonding step for bonding the second polarizing film is the same as the first bonding step. That is, in the first bonding step, the first polarizing film is bonded to the first surface of the liquid crystal cell in the first bonding direction, and in the second bonding step, the second bonding direction , The second polarizing film is bonded to the second surface of the liquid crystal cell.

<Other Embodiments>

In the above embodiment, the laminated optical film fed from the roll is cut at a predetermined interval (half cut), but the present invention is not particularly limited to this configuration. For example, a laminated optical film fed from a roll may be subjected to defect inspection and cut (so-called skipped cut) so as to avoid defects based on the inspection result. It is also possible to read defect information attached to the laminated optical film in advance (before being rolled), and cut off to avoid defects based on the defect information. The defect information may be marked so that the defect position can be known.

Further, the strip-shaped polarizing film of the first roll may be previously cut and formed on the first carrier film. That is, as the first roll, a roll of a laminated optical film having a so-called perforated line may be used. The second roll may be a roll of a laminated optical film having a perforated line as in the first roll.

In the above embodiment, the optical film is bonded to both surfaces of the optical film, but the optical film may be bonded only to one surface of the optical cell.

10: First laminated optical film
12: a strip-shaped first carrier film
11: a strip-shaped first polarizing film
111: first polarizing film
20: First carrier film transport section
30: Feeding device
31: Rotation mechanism
40: First peel portion
50: first joint
80: first liquid crystal cell conveying part
P: liquid crystal cell
LD: liquid crystal display panel

Claims (6)

A switching step of switching the rolls from the first roll to the second roll so that the carrier film of the second roll is fed out after the carrier film of the first roll is fed out,
A carrier film transporting step of transporting a strip-shaped carrier film, in which an optical film including a pressure-sensitive adhesive, fed from the first roll and the second roll is laminated,
An optical cell transporting step of transporting the optical cell,
A peeling step of folding the carrier film conveyed by the carrier film conveying step so as to be inward and peeling the optical film from the carrier film;
And a bonding step of transporting the optical cell and bonding the optical film peeled off from the carrier film in the peeling step to the optical cell with the pressure-sensitive adhesive to form an optical display panel,
In the switching step,
And an installation step of moving the second roll in parallel with the conveying direction of the strip-shaped carrier film and installing the second roll in a second feeding part provided in parallel with the first feeding part provided with the first roll, Continuous manufacturing method. The method according to claim 1,
In the switching step,
Wherein the first axis of rotation and the axis of rotation of the second axis are parallel to the axis of the first axis and the axis of the second axis of rotation of the first axis and the axis of the second axis, The feeding rollers of the second feeding portion are rotated so that the position of the first roll and the position of the second roll are exchanged and the second feeding portion is positioned on the side opposite to the feeding line of the carrier film with respect to the first feeding portion Comprising a rotating process,
Wherein the installing step moves the second roll in parallel with the conveying direction of the carrier film from the conveying line of the carrier film to the feeding device having the first feeding portion and the second feeding portion, And the second roll is provided in the second feeding portion. A second feeding portion provided on the first feeding portion and provided with a second roll on which the carrier film is fed out after the carrier film of the first roll is fed out, A feeding device,
A carrier film conveying section for conveying a belt-like carrier film, which is fed from a first roll provided in the first feeding section and on which an optical film including a pressure-sensitive adhesive is laminated,
An optical cell conveyance section for conveying the optical cell,
A peeling unit for folding the carrier film conveyed by the carrier film conveying unit so as to be inward and peeling the optical film from the carrier film;
And a bonding portion for transporting the optical cell and bonding the optical film peeled off from the carrier film in the peeling portion to the optical cell with the adhesive to form an optical display panel,
Wherein the feeding device has a structure capable of moving the second roll in parallel with the feeding direction so as to be installed in the second feeding portion. The method of claim 3,
In the above-
Wherein the first axis of rotation and the axis of rotation of the second axis are parallel to the axis of the first axis and the axis of the second axis of rotation of the first axis and the axis of the second axis, The feeding rollers of the second feeding portion are rotated so that the position of the first roll and the position of the second roll are exchanged and the second feeding portion is positioned on the side opposite to the feeding line of the carrier film with respect to the first feeding portion And the second roll is moved in parallel with the conveying direction of the carrier film from the conveying portion of the carrier film to the feeding device so that the second roll is conveyed to the second feeding portion Wherein the optical system is mounted on the optical disc. A method of switching between a first roll and a second roll by attaching a first roll to a second roll so that the film of the second roll is fed out after the film of the first roll is fed out,
And a mounting step of mounting the second roll in parallel with the transport direction of the film in a second feeding part provided in the first feeding part provided with the first roll. And a second feed portion provided with a first roll on which a film is fed and a second roll on which a film is fed after the film of the first roll is fed out in parallel to the first feed portion, Device,
And the second roll is moved in parallel with the transport direction of the film so as to be installed in the second feed portion.

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