WO2012070485A1 - Method for manufacturing liquid-crystal display elements and system for manufacturing liquid-crystal display elements - Google Patents

Method for manufacturing liquid-crystal display elements and system for manufacturing liquid-crystal display elements Download PDF

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Publication number
WO2012070485A1
WO2012070485A1 PCT/JP2011/076648 JP2011076648W WO2012070485A1 WO 2012070485 A1 WO2012070485 A1 WO 2012070485A1 JP 2011076648 W JP2011076648 W JP 2011076648W WO 2012070485 A1 WO2012070485 A1 WO 2012070485A1
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film
sheet piece
sheet
liquid crystal
side
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PCT/JP2011/076648
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French (fr)
Japanese (ja)
Inventor
和也 秦
拓矢 中園
宮武 稔
近藤 誠司
平田 聡
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日東電工株式会社
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/30Polarising elements

Abstract

Provided is a method for manufacturing a liquid-crystal display element wherein a pressure-sensitive adhesive between laminated sheets does not protrude therefrom (is not exposed). In said method, in which a liquid-crystal display element is formed by sequentially laminating two or more sheets to a liquid-crystal panel, with respect to two or more sheets laminated to one surface of said liquid-crystal panel, the widths of optical films wound around two or more continuous rolls and the cutting spacing in a cutting sub-step are set such that each of the four sides of the next sheet to be laminated is shorter than the corresponding side of the sheet laminated immediately therebefore.

Description

Manufacturing system manufacturing method and a liquid crystal display element of the liquid crystal display device

The present invention relates to a manufacturing system for a manufacturing method and a liquid crystal display element of the liquid crystal display device.

Patent Document 1 describes a method of manufacturing a liquid crystal display element by laminating the liquid crystal panels in sequence a plurality of optical films each optical film. Specifically, feeding a carrier film from a continuous roll formed by winding the carrier film optical film is laminated, cut into a predetermined size of the optical film in the film width direction, leaving the carrier film (half-cut) and the sheet piece forming a paste of the sheet piece was peeled off the carrier film to a liquid crystal panel, a manufacturing method sequentially laminated form sheet pieces of the next optical film onto the optical film laminated on the liquid crystal panel.

JP 2009-271516 JP

For the above-mentioned Patent Document 1, since sequentially laminated sheet pieces of the plurality of optical films, lamination of a high accuracy is required. However, it is necessary to continuously convey the optical film and the carrier film of the continuous web form feeding from the continuous Patent Document 1 roll to the attaching position of the liquid crystal panel, the half-cut processing mechanism of the optical film, release treatment of the carrier film mechanism, feed processing mechanism of the liquid crystal panel, sheet pieces sticking processing mechanism, the influence of various mechanical errors and control errors such as a carrier film feed processing mechanism, is easy to strictly perform the lamination of sheet pieces to each other at the surface position is not. In order to reduce the stick shift amount of sheet pieces together, it is also possible to cope with slow production rates, results in lowered productivity as reduce the production rate.

Assuming that a stack of sheet pieces would have shifted, will be exposed adhesive formed on the optical film, there is a fear of lowering the display quality by adhering foreign matter on the exposed adhesive. Further, the adhesive protruding exposed becomes glue ball in contact with the outside during transportation, the glue ball is also a concern to become foreign matter upon bonding. Further, when the deviation is large, there is also concern that are laminated without covering the display region of the liquid crystal panel.

Then, each sheet piece, must be stacking the display area of ​​the liquid crystal panel (liquid crystal cell) so as to at least cover, further, undesirable also be stacked off the edge of the liquid crystal panel. When the sheet piece are stacked off the edge of the liquid crystal panel, it is necessary to cut off the protruding portion.

The present invention was made in view of the above circumstances, considering bonding shift amount without decreasing the production rate, and should not occur protrusion (exposure) sheet pieces of the adhesive to be laminated to provide a manufacturing system of a manufacturing method and a liquid crystal display element of the liquid crystal display device.

In order to solve the above problems, the results of extensive studies, and have reached to complete the following invention.

The present invention relates to an optical leaving a continuous roll optical film having a predetermined film width, including an adhesive is wound a carrier film laminated, a carrier film feed sub-step of transporting the carrier film, the carrier film a cutting substep of forming a sheet piece of the optical film in the film width direction orthogonal to the longitudinal direction by cutting the optical film at a predetermined cutting interval of the film, and conveying substeps of conveying a liquid crystal panel, the liquid crystal panel while conveying comprises two or more sheet pieces stacked step of the optical film including the sticking substep of laminating the sheet piece is peeled off from the carrier film to the liquid crystal panel side through the pressure-sensitive adhesive, the two or more the sheet piece lamination step, the liquid crystal of the two or more sheet pieces, in order for each sheet piece Forming a liquid crystal display element by laminating the panel side, the manufacturing method for the liquid crystal display element,
In two or more sheet pieces that are stacked on one side of the liquid crystal panel, each of the four sides of the sheet pieces are then stacked, the four sides of the sheet piece laminated immediately before, corresponding in a laminated state so as to be smaller than the sides, film width of the optical film is wound into the two or more continuous roll is set, and the cutting gap in the cutting sub-step is set.


In this configuration, in consideration of bonding misalignment, each of the four sides of the side of the sheet pieces to be laminated in the following (after) is, among the four sides of the sheet piece laminated immediately before, corresponding in a stacked state by being smaller than the side, and that does not occur protrusion of the laminated sequentially by sheet pieces of adhesive (exposure).


In the above invention, in the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll as a first side, perpendicular to said first side, corresponding to the length of the cutting interval when an edge is defined as a second side,
Relative to the first side of the sheet piece immediately before stacked previously, it corresponds then the first side of the next sheet piece to be stacked, with respect to the second side of the immediately preceding sheet piece, the next wherein such second sides corresponding sheet section, the first lamination the next sheet piece into a sheet piece of the immediately preceding are stacked (the first sheet piece lamination step),
Relative to the first side of the sheet piece immediately before stacked previously, corresponds then the second side of the next sheet piece to be stacked, with respect to the second side of the immediately preceding sheet piece, the next as the first side of the sheet section corresponding, running both the second lamination (second sheet piece lamination step) of the next sheet piece into a sheet piece of the immediately preceding are stacked well, it may be performed either in lamination. The order of the first lamination and the second lamination is not particularly limited. Further, the first lamination process from running once or more than once, may perform second lamination process once or more than once, or vice versa. Also, it may be the second lamination is performed between the first laminate processing performed a plurality of times, or vice versa.

In an embodiment of the invention, in the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll as a first side, perpendicular to the first side, the length of the cutting interval when the corresponding sides and second sides to be, relative to the first side of the sheet piece immediately before stacked previously, then the first side of the next sheet piece to be laminated corresponds, the immediately preceding of with respect to the second side of the sheet piece, so that the second side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
Wherein in two or more sheet pieces that are stacked on one side of the liquid crystal panel, a film width of the sheet piece is first laminated is the largest, so that the film width becomes successively smaller a sheet piece that is laminated on subsequent, the two or more film width of the optical film continuous roll is wound is set, and the largest cut spacing sheet piece laminated the first formed by the cutting sub-step, is laminated on the following that the cutting interval of the sheet piece so that gradually decrease, wherein the optical film cutting substep is cut sheet piece is formed.


In this configuration, it is assumed the greatest film widths and predetermined cutting interval sheet piece which is first laminated (length in the direction perpendicular to the film width direction) to the liquid crystal panel, their second sheet after the sheet piece by gradually decrease, the second sheet after the sheet pieces without being laminated protrudes from sheet pieces are stacked before it, protrusion of the sheet pieces of the adhesive to be laminated (exposed) is also cause not intended to become.


Measured in advance stuck shift amount caused by machinery error of each sheet piece lamination apparatus, it is preferable to set the film width and cutting intervals sheet section to be smaller than the bonding deviation amount.

In an embodiment of the invention, a liquid crystal panel sheet pieces are laminated by said sticking substep, before the next sticking substeps laminating the following sheet piece, 90 ° horizontal with respect to the transporting direction of the liquid crystal panel further comprising a horizontal rotating step of rotating,
In the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll as a first side, perpendicular to said first side, said edges corresponding to the length of the cutting interval first when the two sides, the horizontal first side sheet section immediately before being laminated prior to the rotation step to said second side of the next sheet piece corresponds, the second of the immediately preceding sheet piece to the sides, so that the first side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
Optical film wherein the first side of the next sheet piece such that said immediately preceding smaller than the second side of the sheet piece, which is wound around the continuous roll to form the next sheet piece film width is set, and,
The second side of the next sheet piece, said to be smaller than the first edge of the immediately preceding sheet piece, said cutting interval is set, based on the cutting interval, the optical in the cutting substep the next sheet piece film is cut is formed.


In this configuration, as shown in FIGS. 6 and 7, after sticking process of the immediately preceding sheet piece, the liquid crystal panel is rotated 90 ° horizontally relative to the conveying direction D, and sticking process of the next sheet piece. Film width of the next sheet piece (first side) of the cutting interval immediately preceding sheet piece (second side) smaller than, and the cutting interval of the next sheet piece (second side) of the immediately preceding sheet piece because of which it is film width (first side) smaller than without the protrusion of the next sheet piece, and that protrusion of the sheet pieces of the adhesive to be laminated (exposure) nor occur. In the present invention, including the range of variation in the "90 °" and "90 ° horizontal rotation".


The area of ​​all the sheet pieces to be laminated on the liquid crystal panel is a liquid crystal panel display area (liquid crystal cell region) or higher, and is preferably equal to or less than the surface area of ​​the liquid crystal panel. Further, the film width and the cutting interval of the sheet pieces of the outermost surface to be laminated to the liquid crystal panel is preferably set based on the attached shift amount display area of ​​the liquid crystal panel (liquid crystal cell region). Paste shift amount, X-direction displacement amount is the conveyance direction of the liquid crystal panel, Y-direction displacement amount in the direction orthogonal to the X direction (film width direction), the sheet piece at the time of sticking in the conveyance direction axis of the liquid crystal panel (X-axis) θ deviation amount or the like which is the rotation deviation of the feed axis is illustrated.


In an embodiment of the invention, sticking substeps of the sheet piece lamination step for laminating the second sheet after the sheet piece is orthogonal to the width direction center axis line and the width direction of the first sheet piece intersection line between the direction of the central axis line, the sheet piece so that the cross line and the direction of the central axis line perpendicular to the widthwise central axis line and the width direction of the second sheet after the sheet pieces are matched laminating are preferred (see FIGS. 4A ~ 4C). This configuration, since the sheet pieces to each other as intersecting line of the sheet pieces would coincide or substantially coincide can be laminated, sheet pieces are then stacked never protrude from the sheet piece laminated immediately before.


To laminate so as to match the cross-line of the sheet pieces to each other, based on the end or corner portion of the alignment mark or a liquid crystal panel attached to the liquid crystal panel, paste performing positioning of the sheet pieces to be laminated It is preferred. Distance from the alignment mark or the like to the edge line of the sheet piece is increased in proportion to the order of the sheet pieces to be laminated. That is, all of sheet pieces to be laminated, the panel alignment mark or the like of it stuck in panel reference alignment scheme based. As another alignment method, can be employed alignment method of sheet pieces criteria. This sheet piece criteria alignment method, the first sheet piece to be laminated, bonded and aligned relative to the alignment mark or the like, the sheet piece that is laminated to the second and subsequent sheets, one destination than and alignment relative to the end or the corner of the laminated sheet pieces to a method of bonding. The alignment method of the sheet piece criteria than that of the panel reference, preferred is the possible stuck to more securely sheet piece in which bonded earlier.


In an embodiment of the invention, it is preferably carried out the two or more sheet piece lamination step continuously. Thus, since the liquid crystal display element formed by sequentially stacking the sheet pieces of the optical film to the liquid crystal panel can be continuously produced, productivity can be improved. As another embodiment, performed in succession two sheet piece lamination step, thereafter may be performed continuously one or more sheet piece lamination step.

In an embodiment of the invention, one of the optical film is a 2 color polarization films, one of the other optical film, a reflective polarizing film,
Sheet piece lamination step 2 color polarization film, laminated sheet pieces of the two color polarization film to the liquid crystal panel,
Sheet piece lamination step of the reflective polarizing film, the transmission axis of the sheet pieces of the two color polarization film, wherein as the transmission axis of the sheet piece of the reflective polarizing film are the same direction, the sheet pieces of reflective polarizing film by pasting the sheet pieces of 2 color polarization film, laminating the sheet piece of the reflective polarizing film to the liquid crystal panel. In this configuration, the two color polarization film the reflective polarizing film and the reflective polarizing film is stuck, it preferably has a transmission axis in the longitudinal direction perpendicular to the film width direction.

Thereby, the transmission axis in the longitudinal direction (MD direction), two color polarization film having an absorption axis in a width direction of the film can be used. The transmission axis of the two color polarization film is in its longitudinal direction (MD direction), since the transmission axis of the reflective polarizing film is present in the longitudinal direction (MD direction), 2 color polarization films, reflective polarizing film, the conveying direction of the liquid crystal panel since possible in the same direction, the production line without employing a complicated mechanism such as a rotary mechanism to linear line.

In an embodiment of the invention, the two sheet piece lamination step of the 2 color polarization film, after laminating the sheet pieces of 2 color polarization film on both surfaces of the liquid crystal panel, inspecting the liquid crystal panel optically further comprising an inspection step of,
Sheet piece lamination step of the reflective polarizing film, after inspection by the inspection step, the sheet piece of 2 color polarization film laminated on one surface of the liquid crystal panel, the direction of the transmission axis of the sheet pieces of 2 color polarization film as the direction of the transmission axis of the sheet piece of the reflective polarizing film is the same, paste sheet piece of the reflective polarizing film. Thus, laminating the reflective polarizing film to the liquid crystal panel via the 2 color polarization film.

In this configuration, before laminating the reflective polarizing film, by examining the liquid crystal panel formed by laminating a 2 color polarization fill on both sides, by laminating a reflective polarizing film to a liquid crystal panel that has been determined as non-defective, defective the determined liquid crystal since it is not necessary to laminate it to the panel, it increased the yield of the reflective polarizing film.

Further, another aspect of the present invention, leaving from a continuous roll of an optical film having a predetermined film width, including an adhesive is wound a carrier film laminated, a carrier film carrying means for carrying the carrier film, the carrier film a cutting means for forming a sheet piece of the optical film is cut the optical film at a predetermined cutting interval in the film width direction orthogonal to the longitudinal direction of the optical film Te, and conveying means for conveying the liquid crystal panel, the liquid crystal panel while conveying, comprising two or more sheet pieces lamination apparatus of the optical film and a sticking means for laminating the sheet piece is peeled off from the carrier film to the liquid crystal panel side through the pressure-sensitive adhesive, the two or more sheets the piece lamination apparatus, two or more sheet pieces, the liquid crystal display element by laminating the liquid crystal panel side in order for each sheet piece Formed, a manufacturing system of the liquid crystal display element, in two or more sheet pieces that are stacked on one side of the liquid crystal panel, each of the four sides of the sheet piece that is then laminated, stacked immediately before of the four sides of the sheet piece, so as to be smaller than the corresponding side in a stacked state, the film width of the optical film is wound into said two or more continuous roll is set, and the cutting gap in the cutting means There is set.


In this configuration, in consideration of bonding misalignment, each of the four sides of the side of the sheet pieces to be laminated in the following (after) is, among the four sides of the sheet piece laminated immediately before, corresponding in a stacked state by being smaller than the side, and that does not occur protrusion of the laminated sequentially by sheet pieces of adhesive (exposure).

In an embodiment of the invention, in the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll as a first side, perpendicular to the first side, the length of the cutting interval when the corresponding sides and second sides to be, relative to the first side of the sheet piece immediately before stacked previously, then the first side of the next sheet piece to be laminated corresponds, the immediately preceding of with respect to the second side of the sheet piece, so that the second side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
In two or more sheet pieces that are stacked on one side of the liquid crystal panel, the film width is the largest of the sheet piece is first laminated, so that the film width of the sheet pieces to be laminated in subsequent becomes successively smaller, the film width of the optical film is wound into two or more continuous roll is set, and the first is the largest the cutting interval of the sheet pieces to be laminated sequentially cutting interval sheet piece laminated in subsequent as smaller, the cutting means of the sheet piece lamination apparatus to form a sheet piece by cutting the optical film.


In this configuration, the first and the largest of the film width and cutting intervals sheet piece (length in the direction perpendicular to the width direction) that is laminated on the liquid crystal panel, sequentially reduce their second sheet after the sheet piece it is, second sheet after the sheet pieces without being laminated protrudes from sheet pieces are stacked before it, protrusion of the sheet pieces of the adhesive to be laminated (exposed) may not occur to become.


In an embodiment of the invention may have a control unit for controlling the cutting means and the carrier film feed means two or more of the sheet piece lamination apparatus. Control unit controls all the cutting means and the carrier film transport means, is the largest cut spacing sheet piece which is first stacked, so that the cutting interval of the sheet pieces to be laminated in subsequent becomes successively smaller .


Measured in advance stuck shift amount caused by machinery error of each sheet piece lamination apparatus, it is preferable to set the film width and cutting intervals sheet section to be smaller than the bonding deviation amount. These cutting interval, memory is previously stored in the control unit, so as to cut at the cutting interval, the control unit controls the feeding amount and the cutting means of the carrier film. Feed amount, for example, it may be measured by detection of an encoder for measuring the amount of rotation of the feed roller or the like constituting a part of the carrier film transport means.

In an embodiment of the invention, a liquid crystal panel sheet pieces are laminated by said attaching means, before the next attaching means for stacking the next sheet piece, 90 ° horizontal with respect to the transporting direction of the liquid crystal panel further comprising a horizontal rotating unit for rotating,
In the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll as a first side, perpendicular to said first side, said edges corresponding to the length of the cutting interval first when the two sides, with respect to the first side of the sheet piece just before being stacked prior to rotation by the horizontal rotary part, the next second sides of the sheet piece corresponds, said of the immediately preceding sheet piece with respect to the second side, so that the first side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
Optical film wherein the first side of the next sheet piece such that said immediately preceding smaller than the second side of the sheet piece, which is wound around the continuous roll to form the next sheet piece film width is set, and,

The second side of the next sheet piece, to be smaller than the first edge of the immediately preceding sheet piece, said cutting interval is set, based on the cutting interval, said cutting means said optical film cut to form the next sheet piece.


In this configuration, as shown in FIGS. 6 and 7, after sticking process of the immediately preceding sheet piece, the liquid crystal panel is rotated 90 ° horizontally relative to the conveying direction D, and sticking process of the next sheet piece. Film width of the next sheet piece (first side) of the cutting interval immediately preceding sheet piece (second side) smaller than, and the cutting interval of the next sheet piece (second side) of the immediately preceding sheet piece because of which it is film width (first side) smaller than without the protrusion of the next sheet piece, and that protrusion of the sheet pieces of the adhesive to be laminated (exposure) nor occur.


In an embodiment of the invention, attaching means of the sheet piece lamination apparatus for laminating a second sheet after the sheet piece, perpendicular to the first sheet of film width direction central axis line and the film width direction of the sheet pieces and intersection lines between a direction of the central axis lines, the second sheet after the sheet piece in the film width direction central axis line and the like and cross lines between the direction of the central axis line perpendicular to the film width direction coincides it is preferable to laminate the sheet piece. This configuration, since the sheet pieces to each other as intersecting line of the sheet pieces would coincide or substantially coincide can be laminated, sheet pieces are then stacked never protrude from the sheet piece laminated immediately before.


Sticking means, said panel criteria alignment method, by applying any of the alignment method of sheet pieces criteria can paste the sheet piece.


In an embodiment of the invention, are arranged the two or more sheet piece lamination apparatus in a continuous manufacturing line. Thus, since the liquid crystal display element formed by sequentially stacking the sheet pieces of the optical film to the liquid crystal panel can be continuously produced, productivity can be improved. As another embodiment, the two sheet pieces lamination apparatus arranged in a continuous manufacturing line, may be each other to place another one or more sheet piece lamination apparatus to another (continuous) production line to this.

In an embodiment of the invention, the one optical film is a 2 color polarization films, one of the other optical film is a reflective polarizing film,
Sheet piece lamination apparatus 2 color polarization film, laminated sheet pieces of the two color polarization film to the liquid crystal panel,
Sheet piece lamination apparatus of the reflective polarizing film, the transmission axis of the sheet pieces of the two color polarization film, wherein as the transmission axis of the sheet piece of the reflective polarizing film are the same direction, the sheet pieces of reflective polarizing film by pasting the sheet pieces of 2 color polarization film, laminating the sheet piece of the reflective polarizing film to the liquid crystal panel. In this configuration, the two color polarization film the reflective polarizing film and the reflective polarizing film is stuck, it preferably has a transmission axis in the longitudinal direction perpendicular to the film width direction.

Thereby, the transmission axis in the longitudinal direction (MD direction), two color polarization film having an absorption axis in a width direction of the film can be used. Since the transmission axis of the two-color polarization films and reflective polarizing films have their longitudinal direction (MD direction), 2 color polarization films, reflective polarizing film, it is possible to the conveying direction of the liquid crystal panel in the same direction, the complexity of such rotating mechanism the production line can be made straight line without employing a mechanism.

In an embodiment of the invention, a sheet piece lamination apparatus of two of the 2 color polarization film, after laminating the sheet pieces of 2 color polarization film on both surfaces of the liquid crystal panel, the liquid crystal panel optical inspection further comprising an inspection device for,
Said sheet piece lamination apparatus of the reflective polarizing film, after inspection by the inspection device, the sheet piece of 2 color polarization film laminated on one surface of the liquid crystal panel, the direction of the transmission axis of the sheet pieces of 2 color polarization film and so that the direction of the transmission axis of the sheet piece of the reflective polarizing film is the same, paste sheet piece of the reflective polarizing film. Thus, laminating the reflective polarizing film to the liquid crystal panel via the 2 color polarization film.

In this configuration, before laminating the reflective polarizing film, by examining the liquid crystal panel formed by laminating a 2 color polarization fill on both sides, by laminating a reflective polarizing film to a liquid crystal panel that has been determined as non-defective, defective the determined liquid crystal since it is not necessary to laminate it to the panel, it increased the yield of the reflective polarizing film.

Further, another present invention, the carrier film to convey the continuous roll of sheet pieces of the optical film of the predetermined film width, including an adhesive is wound a carrier film which are stacked next to one another, the carrier film a transfer substep, a transfer substep for conveying the liquid crystal panel, while conveying the liquid crystal panel, sticking substep of laminating the sheet piece is peeled off from the carrier film to the liquid crystal panel side through the pressure-sensitive adhesive comprising two or more sheet pieces stacked step of an optical film including bets, formed by the two or more sheet piece lamination step, two or more sheet pieces are laminated on the liquid crystal panel side in order for each sheet piece with a liquid crystal display device to a method of manufacturing a liquid crystal display device, two or more sheet pieces odor laminated on one surface of said liquid crystal panel , Each of the four sides of the sheet pieces are then stacked, the four sides of the sheet piece laminated immediately before, so as to be smaller than the corresponding side in a stacked state, around the said two or more continuous roll length in the direction orthogonal film width and the film width of the sheet pieces are wound optical film and is set. Thus, it is possible to use a so-called scored containing a continuous roll can be omitted cutting substeps as described above.

In an embodiment of the invention, in the sheet piece, the edges corresponding to the film width of the sheet pieces of the optical film is wound in the continuous roll with the first side, in a direction orthogonal to the said film width length when the corresponding sides and second sides to be, relative to the first side of the sheet piece immediately before stacked previously, then the first side of the next sheet piece to be laminated corresponds, the immediately preceding of with respect to the second side of the sheet piece, so that the second side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding, laminated on one side of the liquid crystal panel in two or more sheet pieces that are long in the direction orthogonal to the film width and the film width of the sheet piece is first laminated is the largest, and the film width and the film width of the sheet pieces to be laminated in subsequent length orthogonal directions As gradually decrease, the length in the direction perpendicular to the film width and the film width of the sheet pieces of the optical film is wound into the two or more continuous roll is set.

In an embodiment of the invention, a liquid crystal panel sheet pieces are laminated by said sticking substep, before the next sticking substeps laminating the following sheet piece, 90 ° horizontal with respect to the transporting direction of the liquid crystal panel further comprising a horizontal rotating step of rotating,
In the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll with the first side, and the side corresponding to the length of the direction perpendicular to the film width and the second side when, with respect to the first side of the sheet piece just before being stacked prior to said horizontal rotation step, the second side of the next sheet piece corresponds, with respect to the second side of the immediately preceding sheet piece, as the first side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately before the first side of the next sheet piece, the said immediately preceding sheet piece to be smaller than the second side, the film width of the sheet pieces of the optical film is wound into a continuous roll is set, and, the second side of the next sheet piece, sheet pieces of the immediately preceding said to be smaller than the first side, the communication of the Length in the direction perpendicular to the film width of the sheet pieces of the optical film is wound into a roll is set.

Further, another present invention, the carrier film to convey the continuous roll of sheet pieces of the optical film of the predetermined film width, including an adhesive is wound a carrier film which are stacked next to one another, the carrier film comprising conveying means, a conveying means for conveying the liquid crystal panel, while conveying the liquid crystal panel, and attaching means for laminating to the liquid crystal panel side through the pressure-sensitive adhesive of the sheet piece is peeled off from the carrier film comprising a sheet piece lamination apparatus of the optical film 2 or more, by the two or more sheet piece lamination apparatus, two or more sheet pieces, in order for each sheet piece laminated on the liquid crystal panel side to form a liquid crystal display device, the liquid crystal the manufacturing system of the display device, in two or more sheet pieces that are stacked on one side of the liquid crystal panel, the sheet piece that is then laminated Each of the four sides, the four sides of the sheet piece laminated immediately before, so as to be smaller than the corresponding side in a stacked state, the sheet pieces of the optical film is wound into the two or more continuous roll film width and direction of length perpendicular to the film width is set. Thus, it is possible to use a so-called scored containing a continuous roll can be omitted cutting substeps as described above.

In an embodiment of the invention, in the sheet piece, the edges corresponding to the film width of the sheet pieces of the optical film is wound in the continuous roll with the first side, in a direction orthogonal to the said film width length when the corresponding sides and second sides to be, relative to the first side of the sheet piece immediately before stacked previously, then the first side of the next sheet piece to be laminated corresponds, the immediately preceding of with respect to the second side of the sheet piece, so that the second side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding, laminated on one side of the liquid crystal panel in two or more sheet pieces that are long in the direction orthogonal to the film width and the film width of the sheet piece is first laminated is the largest, and the film width and the film width of the sheet pieces to be laminated in subsequent length orthogonal directions As gradually decrease, the length in the direction perpendicular to the film width and the film width of the sheet pieces of the optical film is wound into the two or more continuous roll is set.

In an embodiment of the invention, a liquid crystal panel sheet pieces are laminated by said attaching means, before the next attaching means for stacking the next sheet pieces, thereby 90 ° horizontally rotated with respect to the conveying direction of the liquid crystal panel further comprising a horizontal rotating unit, in the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll with the first side, the side corresponding to the length of the direction perpendicular to the film width when was the second side, wherein with respect to the first side of the sheet piece just before being stacked prior to rotation by the horizontal rotating unit, second side of the next sheet piece corresponds, of the immediately preceding sheet to said second side piece, such that the first side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately before the first side of the next sheet piece There, the sheet piece of the immediately preceding Said to be smaller than the second side, the film width of the sheet pieces of the optical film is wound into a continuous roll is set, and, the second side of the next sheet piece, the immediately preceding sheet as is smaller than the first side of the piece, the length in the direction perpendicular to the film width of the sheet pieces of the optical film is wound in the continuous roll is set.

In an embodiment of any of the above manufacturing method, the sheet piece lamination step further includes a film detecting sub step of inspecting the optical film,
The cutting sub-step, it is preferable to cut the optical film based on the detection result of the film inspection substeps. Inspection means to inspect the defect of the optical film. Also, when cutting the optical film in accordance with the test result, it can be configured to cut while avoiding the defect portion. It was cut into a predetermined size defect portion as defective so as not adhered to the liquid crystal panel, it is preferable to exclude, for example, excluding device or the like.

In the above embodiment, the in the film inspection substeps said inspects the optical film while peeling off the carrier film from the optical film, after the inspection, the optical film carrier film via the pressure-sensitive adhesive it is preferable to be bonded to. Thus, the phase difference inherent in the carrier film and, it is not necessary to consider the disadvantages of such foreign matter or scratches deposited or inherent in the carrier film, allows a defect inspection of the optical film.

In the above embodiment, the cutting sub-step, the test result of the film detecting sub step, cutting the optical film is determined to be defective in a predetermined size, eliminating the sheet pieces of the determined optical film defective exclusion It may further include a sub-step. If it is determined to be defective in the defect inspection, and cut into a predetermined size so as to avoid the defect portion of the optical film (sometimes referred to as a skip cut), sheet piece comprising the determined defect defective, for example, known It is eliminated (removed) by the excluding device. Thus, the yield of the optical film is greatly improved.

It is a flowchart of a method of manufacturing a liquid crystal display device of Embodiment 1. It is a flowchart of a method of manufacturing a liquid crystal display device of Embodiment 2. It is a diagram for explaining a manufacturing system of the liquid crystal display device of Embodiment 1. The first sheet piece in Embodiment 1 is a schematic view of a stacked state on the liquid crystal panel. The second sheet piece in Embodiment 1 is a schematic view of a stacked state on the liquid crystal panel. The first sheet and the second sheet piece in Embodiment 1 is a schematic view of a stacked state on the liquid crystal panel. It is a diagram for explaining a manufacturing system of the liquid crystal display device of Embodiment 2. It is a diagram for explaining a manufacturing system of the liquid crystal display device of Embodiment 3. The first sheet piece in Embodiment 3 is a schematic view of a stacked state on the liquid crystal panel. The second sheet piece in Embodiment 3 is a schematic view of a stacked state on the liquid crystal panel (stacked liquid crystal panel after 90 ° horizontal turning). The first sheet and the second sheet piece in Embodiment 3 is a schematic view of a stacked state on the liquid crystal panel. It is a diagram for explaining the film width and cutting intervals of the optical film.

The optical film as long as it includes an adhesive layer as an outermost layer, in an optical film of a single layer or a laminated optical film in which the optical film is laminated. The constitution may also be another film member is laminated to the optical film. Further, as the optical film, for example, a polarizer, include a polarizing film, polarizing film, a polarizer protective film are laminated polarizer and on both surfaces or one surface. There is also a case where the surface protective film for protecting the polarizer or polarizing film from scratches on the transport is stacked. As other optical films, retardation films, optical compensation films such as brightness enhancing films are exemplified. As the laminated optical film, a polarizer or a polarizing film, a retardation film and / or a brightness enhancement film may be stacked.

Polarizing film, for example, 2 color polarization film. 2 color polarization film, (A) staining, to obtain a polarizer by drying the polyvinyl alcohol film subjected to crosslinking and stretching process, bonded on one side or the protective layer on both sides of the (B) polarizer step, (C) bonding step of heat treatment after, produced by the method comprising. Staining of the polyvinyl alcohol film, crosslinking, the processes of stretching may be performed at the same time need not be performed separately, or may also arbitrary order of the processes. As the polyvinyl alcohol-based film may be used a polyvinyl alcohol film subjected to swelling treatment. In general, the polyvinyl alcohol film was immersed in a solution containing iodine or a dichroic dye, and washed after staining by adsorbing iodine or a dichroic dye, stretched in a solution containing boric acid and borax after uniaxial stretching at a magnification 3 to 7 times, and dried. After stretched in a solution containing iodine or a dichroic dye, after further stretching in a solution containing boric acid or borax (two-stage stretching), and dried, the higher the orientation of the iodine, the degree of polarization since the characteristics are improved, particularly preferred.

Brightness enhancement film, for example, reflective polarizing film having a transmission axis and the reflection axis. Reflective polarizing film, for example, two different materials of the polymer films A, obtained by stretching and laminating a plurality alternately B. The refractive index of the stretching direction material A only increases change, is birefringence expression, become a stretching direction in which there is a refractive index difference of the material AB interface reflection axis, the direction in which no refractive index difference (non-stretching direction) the transmission axis.


Further, the pressure-sensitive adhesive contained in the optical film is not particularly limited, for example, acrylic adhesive, silicone adhesive, a urethane adhesive, and the like. Carrier film, for example, a plastic film (e.g., polyethylene terephthalate based films, polyolefin films, etc.) can be used films or the like. Furthermore, silicone-based, long chain alkyl-based as needed, can be used an appropriate thing, such as those optionally coated with an appropriate release agent such as fluorine-based or molybdenum sulfide.

(Optical film and a continuous roll)
In the present embodiment, embodiment the optical film is formed on the carrier film is not particularly limited. For example, it may be configured in a continuous roll which is wound into a roll. The continuous roll, for example, those wound optical film laminate having an optical film comprising a pressure-sensitive adhesive formed in (1) carrier film and the carrier film onto a roll. Production system in this case, the liquid crystal display element, in order to form a sheet piece of the optical film from an optical film, leaving without cutting the carrier film, the optical film (including an adhesive) to the predetermined cutting interval having a cutting means for cutting (half cut). In this cutting, for example, based on the inspection results of the defect inspection apparatus of the manufacturing system, the sheet pieces of the good, the cutting may be performed to distinguish sheet piece defective.

Further, as a continuous roll, for example, (2) an optical film laminate having a sheet piece of the optical film including a pressure-sensitive adhesive formed on the carrier film and the carrier film on which wound into a roll (the so-called scored containing optical continuous film roll) and the like.

(Liquid crystal display element)
The liquid crystal display element, at least (two colors) on one or both sides of the liquid crystal panel are those sheet piece of the polarizing film is formed, a driving circuit is incorporated as needed. Liquid crystal panels, for example, can be used vertically aligned (VA) type, be of any type such as in-plane switching (IPS) type. Liquid crystal panel 4 shown in FIG. 1, a pair of substrates (first substrate, second substrate) facing each a structure in which a liquid crystal layer is sealed between.

(Embodiment 1)
(A method of manufacturing a liquid crystal display element)
Embodiments 1 will be described below. LCD manufacturing method of a display device, from a continuous roll of an optical film having a predetermined film width, including an adhesive is wound a carrier film laminated, a carrier film feed sub-step of transporting the carrier film, the carrier film a cutting substep of forming a sheet piece of the optical film is cut the optical film at a predetermined cutting interval in the film width direction orthogonal to the longitudinal direction of the optical film leaving the conveying substeps of conveying a liquid crystal panel, while conveying said liquid crystal panel, comprising two or more sheet pieces stacked step of the optical film including the sticking substep of laminating the sheet piece is peeled off from the carrier film to the liquid crystal panel side through the pressure-sensitive adhesive, by the two or more sheet piece lamination step, two or more sheet pieces, the sheet pieces DOO laminated on the liquid crystal panel side in order to form a liquid crystal display element. Then, in two or more sheet pieces that are stacked on one side of the liquid crystal panel, the film width is the largest of the sheet piece is first laminated, so that the film width of the sheet pieces to be laminated in subsequent becomes successively smaller , film width of the optical film is wound into the two or more continuous roll is set. The cutting sub largest cutting interval sheet piece that is laminated on the first formed in step, so that the cleavage distance of sheet pieces to be laminated in subsequent becomes successively smaller, the cutting sub-step is performed. Sides in the present embodiment, the sheet piece, which is the side corresponding to the film width of the optical film is wound into a continuous roll to the first side, perpendicular to said first side, corresponding to the length of the cutting interval the when the second side, relative to the first side of the sheet piece immediately before stacked previously, corresponds then the first side of the next sheet piece to be laminated, said of the immediately preceding sheet piece with respect to the second side, the second side of the next sheet piece so as to correspond, the next sheet piece is stacked on the sheet pieces of immediately preceding.

In the following, one of the optical film is a 2 color polarization films, one of the other optical film is described as a reflective polarizing film. The optical film to be laminated on the liquid crystal panel is not limited thereto, may be other optical films, the third sheet may be laminated with an optical film a similar sheet piece lamination step (hereafter).

Sheet piece lamination step 2 color polarization film, a sheet piece of 2 color polarization film was laminated to the liquid crystal panel, sheet piece lamination step of the reflective polarizing film, a sheet piece of a sheet piece of the reflective polarizing film the two color polarization film laminated to. In this case, 2 color polarization film and the reflective polarizing film is described as having a transmission axis in the longitudinal direction orthogonal to the width direction of the film. Further, in the present embodiment, the sheet piece laminated steps and sheet piece lamination step of the reflective polarizing film 2 color polarization film continuously.

Figure 1 shows a flow chart of an example of a method of manufacturing the liquid crystal display device. It will be described sheet piece lamination step 2 color polarization film is first laminated on the liquid crystal panel. Preparing a continuous roll of 2 color polarization film (S1). 2 film width W1 of color polarization film is larger than the film width W2 of the reflective polarizing film to be laminated on the 2 color polarization film (W1> W2). 2 color polarization film and is fed to a downstream side feeding a carrier film from a continuous roll (carrier film feed sub-step, S2). As the transfer means, for example, feed rollers, a tension roller, dancer roller, a sensor for detecting the feed amount, and a control unit that controls their conveying speed and feed rate, and the like.

The film width direction perpendicular to the longitudinal direction of the two color polarization film leaving the carrier film at a predetermined cutting interval L1 by cutting the 2 color polarization film to form a sheet piece of 2 color polarization film (cutting substep, S3 ). The cutting means, for example, a laser, a cutter, etc. and cutting means.

And a carrier film to the inner wrap with a release means tip stripping the sheet piece of 2 color polarization film from the carrier film, and supplies the pasting position. Then, while conveying the liquid crystal panel, a sheet piece of 2 color polarization film is peeled from the carrier film with an adhesive laminated on the liquid crystal panel side (sticking substep, S4). The bonding means include, for example, the sticking roller pair. Incidentally, a winding sub-steps of carrier film sheet piece is peeled off is wound, there is a transport sub-step of conveying the liquid crystal panel to the attaching position. The transport substep transports the liquid crystal panel 2 color polarization film is pasted to the pasting position to the next reflective polarizing film. The conveying means of the liquid crystal panel, for example, sticking rollers, conveying rollers, suction plate, and a control unit or the like to control their conveying speed and feed rate, and the like.

Next, the sheet piece lamination step of the reflective polarizing film laminated on the 2 color polarization film will be described. Preparing a continuous roll of reflective polarizing film (S11). Film width W2 of the reflective polarizing film is smaller than the width W1 of 2 color polarization film that is already stacked (Fig. 4A, 4B refer, W2 <W1). Feeding the reflective polarizing film and the carrier film from the continuous roll is transported to the downstream side (the carrier film feed sub-step, S12).

The film width direction orthogonal to the longitudinal direction of the reflective polarizing film leaving the carrier film was cut to the reflective polarizing film at a predetermined cutting distance L2 to form a sheet piece of the reflective polarizing film (cutting substep, S13). Here, the cutting interval L2 of the reflective polarizing film is smaller than the cutting intervals L1 of the two color polarization film (FIG. 4A, 4B refer, L2 <L1).

And a carrier film to the inner wrap with a release means tip stripping the sheet piece of the reflective polarizing film from the carrier film, and supplies the pasting position. Then, while conveying the liquid crystal panel, a sheet piece of the reflective polarizing film is peeled from the carrier film via the adhesive paste to 2 color polarization film (sticking substep, S14). Sticking means is as defined above attaching means. Transport substep transports the liquid crystal panel reflective polarizing film is adhered to the next step.

Another embodiment of the above embodiment, the case of laminating a reflective polarizing film having a transmission axis in the longitudinal direction perpendicular to the 2 color polarized film width direction in the light film having a transmission axis in the film width direction, the conveying line of the liquid crystal panel L an inverted V shape, after the sheet pieces of 2 color polarization film was laminated to the liquid crystal panel, the liquid crystal panel is transported along the L-shaped conveying line, the two color polarization sheet piece reflective polarizing film film the sheet section, their transmission axes direction are stacked in the same direction.

As another embodiment of the above embodiment, the sheet piece lamination step further includes a film detecting sub step of inspecting the optical film, cutting substep cutting the optical film based on the detection result of the film inspection substeps to. Further, the cutting sub-step is a test result of the film detecting sub step, an optical film is determined to be defective is cut into a predetermined size (cut so as to avoid the defect (so-called skip cut)), optical films determined to be defective further comprising the elimination substep of eliminating the sheet section. The film test substep reads the previously assigned the defect information on the optical film or the carrier film may be cut so as to avoid the defect based on the defect information. The defect inspection method, for example, to an optical film, an image of transmitted light or reflected light captured, analyzes the drawbacks of the image by image processing, there is a way to determine good or defective. Incidentally, the image processing algorithm can be applied a known method, it is possible to detect the defect by grayscale determination example based on binarization. Information of the defect obtained by the defect inspection, the location information (e.g., position coordinates) are tied together, is transmitted to the control device (not shown), it is contributing to the cutting process of the cutting sub-step.

As another embodiment Further, in the film inspection substeps inspects the optical film while peeling off the carrier film from the optical film, after the inspection, it is preferable to bond the carrier film to the optical film through an adhesive .

In the above embodiment has been described a method for laminating the 2 color polarization film and the reflective polarizing film on one surface of the liquid crystal panel in this order, but the present embodiment is not limited to this configuration. To other surfaces of the liquid crystal panel, it can be stacked similarly 2 color polarization film. In this case, the transmission axis of the two-color polarization film laminated on one surface of the liquid crystal panel, the transmission axis of the two-color polarization film to be laminated on the other surface is laminated so that a relation of cross-Nicol.

(Manufacturing system of the liquid crystal display device)
Be described with reference to FIG manufacturing system of the liquid crystal display device of Embodiment 1. Manufacturing system of the liquid crystal display device, from a continuous roll of an optical film having a predetermined film width, including an adhesive is wound a carrier film laminated, a carrier film carrying means for carrying the carrier film, the carrier film a cutting means for forming a sheet piece of the optical film is cut the optical film at a predetermined cutting interval in the film width direction orthogonal to the longitudinal direction of the optical film leaving, conveying means for conveying the liquid crystal panel, the liquid crystal panel while conveying the provided sheet piece lamination apparatus the two or more optical films and a sticking means for laminating the sheet piece is peeled off from the carrier film to the liquid crystal panel side through the pressure-sensitive adhesive. This 2 or more sheet piece lamination apparatus, two or more sheet pieces are laminated on the liquid crystal panel side in order for each sheet piece forming a liquid crystal display device. The manufacturing system is the largest is the cutting interval of the sheet piece is first laminated so that the cleavage distance of sheet pieces to be laminated in subsequent becomes successively smaller, controlling said cutting means and the carrier film feed means a control unit, the cutting unit of the sheet piece lamination apparatus, the cutting distance of the sheet piece the is first laminated is the largest, so that the cleavage distance of sheet pieces to be laminated in subsequent becomes successively smaller, cutting the optical film. That is, the sheet pieces are laminated sequentially on the liquid crystal panel (first sheet, second sheet, n th, n + 1 th, ...) is the magnitude relation of the cut distance L is L n> L n + 1.

In the following, two sheet pieces that are stacked on one side of the liquid crystal panel is a 2 color polarization film and the reflective polarizing film is not limited thereto, may be other optical films, the third sheet it may be stacked with similar sheet piece lamination apparatus the optical film (hereafter).

Two sheet piece lamination apparatus 2 color polarization and sheet piece lamination apparatus 301 for stacking the sheet pieces of the film, reflective polarizing sheet piece lamination apparatus for laminating a sheet piece into a sheet piece of 2 color polarization film of the film is 302. In the present embodiment, 2 color polarization film sheet piece lamination apparatus 301 and the reflective polarizing film sheet piece lamination apparatus 302 is disposed in a continuous manufacturing line. 2 film width W1 of color polarization film is larger than the film width W2 of the reflective polarizing film (see FIG. 4A ~ 4B). In the present embodiment, 2 color polarization film has a transmission axis in the longitudinal direction thereof, having an absorption axis in the film width direction. The reflective polarizing film has a transmission axis in the longitudinal direction thereof, having a reflection axis in the film width direction. The film width of 2 color polarization film W1> the relationship of the film width W2 of the reflective polarizing film.

3, 2 color polarization film sheet piece lamination apparatus 301 includes a carrier film feed unit 101, a liquid crystal panel conveyance unit 102, sticking unit 103 (adhering roller 50a, the drive roll 50b) and. The sheet piece lamination apparatus 302 of the reflective polarizing film includes a liquid crystal panel conveyance unit 202, a carrier film feed unit 201, sticking unit 203 (adhering roller, drive roll) and. In the present embodiment, the upper side of the liquid crystal panel 4 Paste sheet piece 131 of 2 color polarization film, then, are pasted sheet piece 231 of the reflective polarizing film from the upper side of the liquid crystal panel 4. Incidentally, not limited to this paste method, for example, from the lower side of the liquid crystal panel pasted sheet piece 2 color polarization film may be attached to the sheet piece of the reflective polarizing film from the lower side of the liquid crystal panel, whereas the optical film pasted from the upper side of the liquid crystal panel, the other optical film may be stuck from the lower side of the liquid crystal panel.

(Liquid crystal panel conveyance means)
Liquid crystal panel conveyance unit 102 conveys and supplies the liquid crystal panel 4 in attaching means 103. In this embodiment, the liquid crystal panel conveyance unit 102 is configured with a transport roller 80 and the suction plate or the like. By rotating the conveying roller 80, or by transferring the suction plate, for conveying the liquid crystal panel 4 to the production line downstream.

(Carrier film transport means)
Carrier film feed unit 101, feeding a carrier film 12 which are 2 color polarization film 13 including an adhesive are laminated from a continuous roll 1, leaving the carrier film 12 by cutting the 2 color polarization film 13 at a predetermined cutting interval L1 the sheet piece 131 of 2 color polarization film is formed on the carrier film 12 Te, folded to the carrier film 12 on the inner side at the tip of the stripping means 40, the sheet piece 131 (the adhesive from the carrier film 12 2 color polarization film including) was peeled off, and supplies to the attaching means 103. Therefore, a carrier film feed unit 101, the cutting means 20, the dancer roll 30, the separating means 40, having a take-up means 60.

Cutting means 20 is allowed to fix the carrier film 12 by the suction means 20a, leaving the carrier film was cut to 2 color polarization film 13 at predetermined intervals L1, sheet piece 131 of 2 color polarization film on the carrier film 12 to form. The cutting means 20, for example a cutter, such as a laser apparatus.

Dancer roll 30 has a function of holding the tension of the carrier film 12. Carrier film feed unit 101 conveys the carrier film 12 through the dancer roll 30.

Peeling means 40, to paste the sheet piece 131 to the liquid crystal panel 4, folded back to the carrier film 12 at its distal end inward, peeling off the sheet piece 131 from the carrier film 12. In the present embodiment, the separating means 40, is used a sharp knife edge portion to the tip, but is not limited thereto.

Winding means 60 takes up the carrier film 12 sheet piece 131 is peeled off. Between the bonding means 103 and the winding unit 60 may further include a feed roller.

(Sticking means)
Sticking means 103, the sheet piece 131 of 2 color polarization film supplied by the carrier film feed unit 101 from the upper side of the liquid crystal panel 4, which is supplied by the liquid crystal panel conveyance unit 102 via an adhesive paste. In this embodiment, attaching means 103, the joining roller 50a, composed of the driving roller 50b.

(Control unit)

Control unit 300 controls the cutting means 20 and the carrier film feed unit 101, and controls the cutting interval L1 of the sheet piece 131 of 2 color polarization film. Cutting interval L1 is the direction perpendicular to the film width direction of the sheet piece 131 of 2 color polarization film to length (see FIG. 4A ~ 4C). Controller 300 2 color polarization cutting interval L1 is the largest of the film, cutting interval L2 of the reflective polarizing film then is laminated to control the cutting means 20 and the carrier film feed unit 101 to be smaller than L1. For example, the predetermined distance L1, L2 of the cutting, the memory is previously stored in the controller 300, so as to cut at the predetermined intervals L1, L2, the control unit 300 controls the feeding amount and the cutting process of the carrier film to. Feed amount, for example, may be measured by detection of an encoder for measuring the amount of rotation of the feed roller or the like constituting a part of the carrier film transport means 101, 201.

It will now be described sheet piece lamination apparatus 302 of the reflective polarizing film. Sheet piece lamination apparatus 302 of the reflective polarizing film, the sheet piece 131 of 2 color polarization film laminated on the liquid crystal panel 4, is a device for pasting the sheet piece 231 of the reflective polarizing film, sheet piece of 2 color polarization film briefly for the same configuration as multilayer device.

Liquid crystal panel conveyance unit 202 supplies the sticking unit 203 by bonding means 103 conveys the liquid crystal panel 4 sheet piece 131 is attached.

Carrier film feed unit 201, can be configured in the same apparatus as the carrier film feed unit 101, attaching means 203 may be made of the same device and attaching means 103. For example, the dancer roll can be made of the same device as the dancer roll 30, the winding means can be configured in the same apparatus as the take-up means 60, the joining roller and driving roller in bonding roller 50a and driven roller 50b and the same mechanism It can be configured.

Cutting means 20 is allowed to fix the carrier film 22 by the suction unit 20a, a reflective polarizing film 23 is cut at predetermined intervals L2 (L1> L2), leaving the carrier film 22, reflective polarizing film on the carrier film 22 to form a sheet section 231.

Sticking means 203, sheet piece 131 of 2 color polarization film through an adhesive sheet piece 231 of the reflective polarizing film supplied by the carrier film feed unit 201 from the upper side of the liquid crystal panel 4, which is supplied by the liquid crystal panel conveyance unit 202 to paste. Sticking means 203 includes two color polarization film center axis line and cross-line direction perpendicular to the width direction center axis line and the width direction of the sheet piece 131 (broken line P1 in FIG. 4A), the sheet piece of the reflective polarizing film 231 widthwise central axis line and the intersection line between the direction of the central axis line orthogonal to the width direction of such a (broken line P2 in FIG. 4B) is to match or substantially match, the sheet piece 231 of the reflective polarizing film 2 colors it is preferable to laminate the sheet piece 131 of the polarizing film. Paste shift amount (X direction offset, Y-direction displacement, theta deviation) in consideration of, because it is preferable to laminate the sheet pieces to each other.

Control unit 300 controls the cutting means 20 and the carrier film feed unit 201, and controls the cutting distance L2 of the sheet piece 231 of the reflective polarizing film. Cut distance L2 becomes a length in the direction perpendicular to the film width direction of the sheet piece 231 of the reflective polarizing film (see FIG. 4A ~ 4C). Control unit 300 controls the L2 is 2 color polarization cutting means 20 and the carrier film feed unit 201 to be smaller than L1 of the film of the reflective polarizing film.

Liquid crystal panel conveyance unit 204, the sheet piece 131 and the reflective polarizing film sheet piece 231 of 2 color polarization film transports the liquid crystal panel stacked on the downstream side.

Further, the conveyance downstream side, the other side of the liquid crystal panel sheet piece is not laminated, with another sheet piece lamination apparatus, it may be attached to optical films such sheet piece of 2 color polarization film.

Further, the conveyance downstream side, an inspection apparatus for inspecting a liquid crystal display device 2 color polarization film or the like on both surfaces are laminated may be installed. Test The purpose of this inspection apparatus, the inspection method is not particularly limited.

(Embodiment 2)
The manufacturing method of the second embodiment, the sheet piece lamination step two 2 color polarization film, after laminating the sheet pieces of 2 color polarization film on both surfaces of the liquid crystal panel, an inspection step for inspecting the liquid crystal panel optically Execute. Then, after the inspection by the inspection step, execute the sheet piece lamination step of the reflective polarizing film, a sheet piece of 2 color polarization film laminated on one surface of the liquid crystal panel, the transmission axis of the sheet pieces of 2 color polarization film laminating the sheet piece of the reflective polarizing film having the same direction of the transmission axis direction. In the present embodiment, the sheet piece lamination step two 2 color polarization film, is carried out continuously sheet piece lamination step of the inspection step and the reflective polarizing film is not limited particularly to, as another embodiment, may the sheet piece lamination step two 2 color polarization film performed continuously, may be a sheet piece lamination steps and inspection steps of the two 2 color polarization film performed continuously, the checking step and the reflective polarizing film the sheet piece lamination step may be performed continuously.

Figure 2 shows a manufacturing flow chart of the second embodiment. First, on one surface of the liquid crystal panel pasted sheet piece 2 color polarization film (second sheet piece lamination step of color polarization film, S21). Then, the other surface of the liquid crystal panel pasted sheet piece 2 color polarization film (second sheet piece lamination step of color polarization film, S22). Sheet piece lamination step 2 color polarization film is the same as the respective steps of from step S1 to step S4 of the first embodiment. Note that the transmission axis of the two-color polarization film laminated on one surface of the liquid crystal panel, and the transmission axes of the two color polarization film to be laminated on other surface is laminated so that a relation of cross-Nicol.

Then, to the liquid crystal panel sheet piece is attached in the 2 color polarization film on both surfaces, irradiated with light for two color polarization film surface which becomes the back side (backlight side), a reflected light image is photographed . Further, by irradiating light to the 2 color polarization film surface as the back light side (rear side), for imaging the transmitted light image. And image processing the image data obtained by imaging, and determines the presence or absence of defect of a foreign matter or air bubbles interposed between the inner or 2 color polarization film and the liquid crystal panel 2 color polarization film (inspection step, S23) . If it is judged to be good (normal product), to convey the liquid crystal display panel to the bonding position between the reflective polarizing film. The paste sheet piece of the reflection polarizing film 2 color polarization film comprising a rear side of the liquid crystal panel (sheet piece lamination step of the reflective polarizing film, S25). Sheet piece lamination step of the reflective polarizing film is the same as the steps of Step S14 from Step S11 in the first embodiment. Note that the transmission axis of the two-color polarization film, the transmission axis of the reflective polarizing film is laminated to the 2 color polarization film is laminated so as to have the same orientation. On the other hand, if it is determined to be defective, it conveys the liquid crystal panel to defective port eliminates (elimination step, S26).

(Manufacturing system)
Be explained with reference to FIG manufacturing system of the second embodiment. In the present embodiment, the sheet piece lamination apparatus of two 2 color polarization film, but the sheet piece lamination apparatus of the inspection apparatus and the reflective polarizing film is disposed on a continuous production line, is not particularly limited thereto, the two two-color may be disposed sheet piece lamination apparatus of the polarizing film in a continuous manufacturing line, it may be disposed sheet piece lamination apparatus and inspection apparatus of two 2 color polarization film in a continuous production line, the inspection device and the reflective polarizer film the sheet piece lamination apparatus may be arranged in a continuous production line.

Sheet piece lamination apparatus shown in FIG. 5 501 502 has the same configuration as the sheet piece lamination apparatus 2 color polarization film of the first embodiment. Sheet piece lamination apparatus 501, on the viewing side of the liquid crystal panel by laminating the sheet piece 131 of 2 color polarization film, sheet piece lamination apparatus 502, the sheet piece of 2 color polarization film to the back side of the liquid crystal panel (backlight side) 131 are stacked. Sheet piece lamination apparatus 501 and 502, if the transmission axis of the sheet pieces between two color polarization film to be laminated on both sides of the liquid crystal panel is sufficient that a cross-Nicol, similarly to Embodiment 1, a sheet from the upper side of the liquid crystal panel may be laminated pieces may be laminated sheet pieces from the lower side of the liquid crystal panel. 90 ° horizontal rotation mechanism may optionally have a vertical reversing mechanism, or the like.

A liquid crystal panel sheet piece 2 color polarization film on both sides is laminated is conveyed to the inspection device 400 in the liquid crystal panel conveyance unit 202. Inspection apparatus 400 inspects a liquid crystal panel optically. Inspection device 400 emits light vertically (downward from above in FIG. 5) surface to be the back side of the liquid crystal panel that has been transported. Light from the irradiation unit 401 is reflected by a half mirror (not shown) illuminating the liquid crystal panel. Reflected light image by the irradiation by the imaging unit 402. The transmitted light image is imaged by the imaging unit 403. Image data obtained by imaging is subjected to image processing to analyze the defect information processing unit of the inspection apparatus 400 determines whether good or defective in the determination unit.

Then, the sheet piece lamination apparatus 503 of the reflective polarizing film is the same structure as the first embodiment, after the inspection by the inspection device 400, the sheet piece 131 of 2 color polarization film laminated to a surface to be the back side of the liquid crystal panel, the 2 and the direction of the transmission axis of the sheet piece 131 of the color polarization film, so that the direction of the transmission axis of the sheet piece 232 of the reflective polarizing film is the same, paste sheet piece 231 of the reflective polarizing film. To the liquid crystal panel is determined to be non-defective by the inspection result, the sheet piece lamination apparatus 503, paste sheet piece 231 of the reflective polarizing film sheet piece 131 of 2 color polarization film. A liquid crystal panel is determined to be defective in the inspection results, eliminate and conveyed to a defective product port. The liquid crystal panel of the defective liquid crystal panel conveyance unit 202, attaching means 203, by the conveying means 204, it may be transported to defective port.

Each means described above, the operation timing of the apparatus, for example, is calculated by the method of detecting by placing the sensor in position, or, the rotation member of the conveying means and the conveying mechanism so as to detect a rotary encoder or the like is calculated It is. Control unit, the software program a CPU, may be realized by cooperation action between the hardware resources such as memory, In this case, the program software, procedures, various settings, etc. The memory is stored in advance. Also it is configured by a dedicated circuit or firmware and the like.

(Embodiment 3)
Manufacturing method and a manufacturing system of Embodiment 3, has a basic configuration of the first embodiment, even after the sticking substep of the first sheet piece (bonding means 103), attaching the second sheet piece before attaching, it has a horizontal rotation step of rotating 90 ° the horizontal with respect to the transporting direction D of the liquid crystal panel 4 (horizontal rotation portion 90) (see FIGS. 6 and 7). Each component of the third embodiment has the same elements as those in the embodiment 1, the components of FIGS. 6, 7A ~ 7C are the components of FIGS. 3, 4A ~ 4C that matches the code is the same as the description of the components will be omitted, and described below for the different configurations.

As shown in FIGS. 6, 7A ~ 7C, 1 sheet of the sheet piece 131 is laminated on the liquid crystal panel 4. Then, before stacking the second sheet piece 231 to first sheet piece 131, 90 ° horizontally rotated with respect to the transporting direction D of the liquid crystal panel 4. Then, the second sheet piece 231 is stacked on the first sheet piece 131. When this paste, given with the first image of the first side of the sheet piece 131 (the film width of the optical film is wound into a continuous roll), the second side of the second sheet piece 231 (cutting means a cut edge) in cutting interval corresponding to the vertical (thickness direction of the laminated) of the second side of the first sheet piece 131 (the cut edges at predetermined cutting interval cutting means), 2 th of the first side of the sheet piece 231 and (film width of the optical film is wound into a continuous roll) corresponds to the vertical (thickness direction of the laminated).

The horizontal rotating unit 90, for example, is moved to the liquid crystal panel 4 in the upward direction, the liquid crystal panel conveyance unit (e.g., the conveying roller 80) away from and then 90 ° to the horizontal rotation, then mechanism for mounting the transport roller 80 Although but is exemplified, without being limited thereto, it may be another mechanism.

After the second sheet piece 231 are laminated, third sheet piece may be laminated. In such a case, before laminating the third sheet piece may be rotated again 90 ° horizontally the liquid crystal panel.

(Example)
With sheet piece lamination apparatus of the first embodiment, on one side of the liquid crystal panel (32 inches), the sheet piece of the retardation film (first sheet), a sheet piece of 2 color polarization film (second sheet), reflecting It was laminated in the order of the sheet piece of the polarizing film (third sheet). Examples 1 and 2, in each of Comparative Example 1 was evaluated number of samples is 100 sheets (n = 100). In Examples 1 and 2, Comparative Example 1, the first sheet of the retardation film to be laminated directly on the liquid crystal panel, 2 color polarization film of the second sheet, each of the film width W1, W2 of the reflective polarizing film of the third sheet , W3, the magnitude relation between the cutting intervals L1, L2, L3 shown in Table 1, indicates their actual dimensions in Table 2. Further, in Table 2, the maximum value of the bonding deviation amount (the width direction (the film Y direction is the width direction), X-direction which is the conveying direction of the longitudinal direction (liquid crystal panel)), defective rate due to visual inspection (%) It is shown. Shift amount is, protrude third sheet piece from the second sheet piece, the third sheet piece adhesive (glue) in length exposed (glue exposure amount), or the second sheet sheet piece is protruded from the first sheet piece, the second sheet piece of adhesive (glue) is a maximum amount of the length of exposure was measured with a digital caliper. Evaluation items of poor judgment, lack of glue, and dirt, and foreign matter.

Figure JPOXMLDOC01-appb-T000001

Figure JPOXMLDOC01-appb-T000002

From the results of Example 1, a film width of the sheet piece, the magnitude relationship of the cutting interval W1> W2> W3, L1> L2> If it is L3, the third sheet piece protrudes from the second sheet piece no, and it is the second sheet piece was able to confirm that it can be pasted without protruding from the first sheet piece. On the other hand, from the results of Comparative Example 1, the first sheet, second sheet and third sheet pieces of film width (W1 = W2 = W3), when the cutting distance (L1 = L2 = L3) are the same , the second sheet piece not able to put paste without protruding from the first sheet piece, third sheet piece was the result that can not be pasted without protruding from the second sheet piece. In Comparative Example 2, although third sheet piece is not is protruded from the first sheet piece, which protrudes than the second sheet piece. Therefore, while the embodiment 1, the defect rate adhesive is not exposed is 0% in Comparative Examples 1 and 2 where the adhesive is exposed, chipping glue, dirt, the occurrence of defects such as foreign matter was observed .

Further, from the results of Example 1, in consideration of the maximum displacement amount in the direction orthogonal to the width direction of the film and the film width direction, the first sheet, second sheet and third sheet of film width, to set the cutting gap it was confirmed that it is preferable (W1 ≧ (W2 + width direction maximum shift amount) ≧ (W3 + width direction maximum shift amount), L1 ≧ (L2 + length direction maximum deviation amount ≧ (L3 + length direction maximum shift amount). each maximum shift amount can be set from the result of long runs operation of the manufacturing system.

1,2 continuous roll 4 liquid crystal panel 20 cutting means 40 separating means 90 sheet piece 231 reflection of the polarizing film of the horizontal rotating unit 101 and 201 the carrier film feed unit 102, 202 liquid crystal panel conveyance unit 103, 203 sticking unit 131 2 color polarization film sheet piece 300 controller

Claims (20)

  1. From a continuous roll of an optical film having a predetermined film width, including an adhesive is wound a carrier film laminated, a carrier film feed sub-step of transporting the carrier film, the longitudinal direction of the optical film leaving the carrier film perpendicular to the cutting sub-step of forming a sheet piece of the optical film in the film width direction by cutting the optical film at a predetermined cutting interval, and conveying substeps of conveying a liquid crystal panel, while conveying the liquid crystal panel and, comprising two or more sheet pieces stacked step of the optical film including the sticking substep of laminating the sheet piece is peeled off from the carrier film to the liquid crystal panel side through the pressure-sensitive adhesive, the two or more sheet piece lamination step Accordingly, two or more sheet pieces, in order for each sheet piece on the liquid crystal panel side And a layer forming a liquid crystal display device, a manufacturing method for a liquid crystal display device,
    In two or more sheet pieces that are stacked on one side of the liquid crystal panel, each of the four sides of the sheet pieces are then stacked, the four sides of the sheet piece laminated immediately before, corresponding in a laminated state so as to be smaller than the sides, film width of the optical film is wound into said two or more continuous roll is set, and the cutting gap in the cutting sub-step is set, a method of manufacturing a liquid crystal display device.
  2. In the sheet piece, the edges corresponding to the film width of the optical film is wound into a continuous roll as a first side, said first side and perpendicular sides of the second corresponding to the length of the cutting interval when the side, with respect to the first side of the sheet piece immediately before stacked previously, corresponds then the first side of the next sheet piece to be stacked, the second side of the immediately preceding sheet piece hand, as the second side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
    Wherein in two or more sheet pieces that are stacked on one side of the liquid crystal panel, a film width of the sheet piece is first laminated is the largest, so that the film width becomes successively smaller a sheet piece that is laminated on subsequent, the two or more film width of the optical film continuous roll is wound is set, and the largest cut spacing sheet piece laminated the first formed by the cutting sub-step, is laminated on the following that the cutting interval of the sheet piece so that gradually decrease, wherein the optical film is cut sheet piece at the cutting sub-step is formed, the manufacturing method of the liquid crystal display device according to claim 1.
  3. A liquid crystal panel sheet pieces are laminated by said sticking substep, before the next sticking substeps laminating the following sheet pieces, further comprising a horizontal rotation step of 90 ° horizontally rotated with respect to the conveying direction of the liquid crystal panel ,
    In the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll as a first side, perpendicular to said first side, said edges corresponding to the length of the cutting interval first when the two sides, the relative the first side of the sheet piece immediately before stacked before the horizontal rotation step, the next of said second side sheet section corresponds, the first of the immediately preceding sheet piece to two sides, as the first side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
    Optical film wherein the first side of the next sheet piece such that said immediately preceding smaller than the second side of the sheet piece, which is wound around the continuous roll to form the next sheet piece film width is set, and,
    The second side of the next sheet piece, said to be smaller than the first edge of the immediately preceding sheet piece, said cutting interval is set, based on the cutting interval, the optical in the cutting substep film the next sheet piece is cut is formed, the manufacturing method of the liquid crystal display device according to claim 1 or 2.
  4. The two or more sheet piece lamination step is continuously performed, a method of manufacturing a liquid crystal display device according to any one of claims 1-3.
  5. It said one optical film is a 2 color polarization films, one of the other optical film, a reflective polarizing film,
    Sheet piece lamination step 2 color polarization film, laminated sheet pieces of the two color polarization film to the liquid crystal panel,
    Sheet piece lamination step of the reflective polarizing film, the transmission axis of the sheet pieces of the two color polarization film, wherein as the transmission axis of the sheet piece of the reflective polarizing film are the same direction, the sheet pieces of reflective polarizing film the 2 by pasting the sheet pieces of color polarization film, laminating the sheet piece of the reflective polarizing film to the liquid crystal panel, a method of manufacturing a liquid crystal display device according to any one of claims 1-4.
  6. The 2 color polarization film the reflective polarizing film and the reflective polarizing film is pasted, a method of manufacturing a liquid crystal display device according to claim 5 having a transmission axis in the longitudinal direction perpendicular to the film width direction.
  7. By two sheet piece lamination step of the 2 color polarization film, after laminating the sheet pieces of 2 color polarization film on both surfaces of the liquid crystal panel further includes an inspection step of inspecting the liquid crystal panel optically,
    Sheet piece lamination step of the reflective polarizing film, after inspection by the inspection step, the sheet piece of 2 color polarization film laminated on one surface of the liquid crystal panel, the direction of the transmission axis of the sheet pieces of 2 color polarization film as the direction of the transmission axis of the sheet piece of the reflective polarizing film is the same, a method of manufacturing a liquid crystal display device according to claim 5 or 6 paste sheet piece of the reflective polarizing film.
  8. From a continuous roll of an optical film having a predetermined film width, including an adhesive is wound a carrier film laminated, a carrier film carrying means for carrying the carrier film, the longitudinal direction of the optical film leaving the carrier film a cutting means for forming a sheet piece of the optical film in orthogonal transverse direction of the film by cutting the optical film at a predetermined cutting interval, and conveying means for conveying the liquid crystal panel, while conveying the liquid crystal panel, wherein the carrier film with 2 or more the sheet piece is peeled off the sheet piece lamination apparatus of the optical film and a sticking means for laminating to the liquid crystal panel side through the pressure-sensitive adhesive from the the two or more sheet piece lamination apparatus, two or more of the sheet piece, forming a liquid crystal display element by laminating the liquid crystal panel side in order for each sheet piece, liquid crystal display A manufacturing system of elements,
    In two or more sheet pieces that are stacked on one side of the liquid crystal panel, each of the four sides of the sheet pieces are then stacked, the four sides of the sheet piece laminated immediately before, corresponding in a laminated state so as to be smaller than the sides, the two or more film width of the optical film continuous roll is wound on is set, and the cutting gap in the cutting means is set, the manufacturing system of the liquid crystal display device.
  9. In the sheet piece, the edges corresponding to the film width of the optical film is wound into a continuous roll as a first side, said first side and perpendicular sides of the second corresponding to the length of the cutting interval when the side, with respect to the first side of the sheet piece immediately before stacked previously, corresponds then the first side of the next sheet piece to be stacked, the second side of the immediately preceding sheet piece hand, as the second side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
    In two or more sheet pieces that are stacked on one side of the liquid crystal panel, the film width is the largest of the sheet piece is first laminated, so that the film width of the sheet pieces to be laminated in subsequent becomes successively smaller, the film width of the optical film is wound into two or more continuous roll is set, and the first is the largest the cutting interval of the sheet pieces to be laminated sequentially cutting interval sheet piece laminated in subsequent as smaller, the cutting means of the sheet piece lamination apparatus by cutting the optical film to form a sheet piece, the manufacturing system of the liquid crystal display device according to claim 8.
  10. A liquid crystal panel sheet pieces are laminated by said attaching means, before the next attaching means for stacking the next sheet piece, further comprising a horizontal rotation portion to 90 ° horizontally rotated with respect to the conveying direction of the liquid crystal panel,
    In the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll as a first side, perpendicular to said first side, said edges corresponding to the length of the cutting interval first when the two sides, the relative said first edge of the immediately preceding sheet piece laminated prior to rotation by the horizontal rotating unit, wherein the second side of the next sheet piece corresponds, of the immediately preceding sheet piece the relative second side, such that the first side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
    Optical film wherein the first side of the next sheet piece such that said immediately preceding smaller than the second side of the sheet piece, which is wound around the continuous roll to form the next sheet piece film width is set, and,
    The second side of the next sheet piece, to be smaller than the first edge of the immediately preceding sheet piece, said cutting interval is set, based on the cutting interval, said cutting means said optical film cut to form the next sheet piece, the manufacturing system of the liquid crystal display device according to claim 8 or 9.
  11. Production system of the two or more sheet pieces lamination apparatus is disposed in a continuous production line, the liquid crystal display device according to any one of claims 8-10.
  12. It said one optical film is a 2 color polarization films, one of the other optical film is a reflective polarizing film,
    Sheet piece lamination apparatus 2 color polarization film, laminated sheet pieces of the two color polarization film to the liquid crystal panel,
    Sheet piece lamination apparatus of the reflective polarizing film, the transmission axis of the sheet pieces of the two color polarization film, wherein as the transmission axis of the sheet piece of the reflective polarizing film are the same direction, the sheet pieces of reflective polarizing film the 2 by pasting the sheet pieces of color polarization film, laminating the sheet piece of the reflective polarizing film to the liquid crystal panel, manufacturing system of the liquid crystal display device according to any one of claims 8-11.
  13. Wherein said two color polarization film reflective polarizing film and the reflective polarizing film is stuck has a transmission axis in the longitudinal direction perpendicular to the film width direction, the manufacturing system of the liquid crystal display device according to claim 12.
  14. In sheet piece lamination apparatus of two of the 2 color polarization film, after laminating the sheet pieces of 2 color polarization film on both surfaces of the liquid crystal panel further includes an inspection apparatus for inspecting the liquid crystal panel optically,
    Said sheet piece lamination apparatus of the reflective polarizing film, after inspection by the inspection device, the sheet piece of 2 color polarization film laminated on one surface of the liquid crystal panel, the direction of the transmission axis of the sheet pieces of 2 color polarization film the reflection as the direction of the transmission axis of the sheet piece of the polarizing film is the same, the manufacturing system of the liquid crystal display device according to claim 12 or 13 paste sheet piece of the reflective polarizing film.
  15. From a continuous roll sheet piece of the optical film of the predetermined film width, including an adhesive is wound a carrier film which are stacked next to each other, and a carrier film feed sub-step of transporting the carrier film, a liquid crystal panel a transfer substep for conveying said while conveying the liquid crystal panel, a sheet piece of the optical film including the sticking substep of laminating the sheet piece is peeled off from the carrier film to the liquid crystal panel side through the pressure-sensitive adhesive It comprises laminating step 2 above, the by more than one sheet piece lamination step, two or more sheet pieces, forming a liquid crystal display element by laminating the liquid crystal panel side in order for each sheet piece, a method of manufacturing a liquid crystal display device there is,
    In two or more sheet pieces that are stacked on one side of the liquid crystal panel, each of the four sides of the sheet pieces are then stacked, the four sides of the sheet piece laminated immediately before, corresponding in a laminated state so as to be smaller than the sides, the length in the direction perpendicular to the film width and the film width of the sheet pieces of the optical film is wound into the two or more continuous roll is set, a method of manufacturing a liquid crystal display device .
  16. In the sheet piece, the edges corresponding to the film width of the sheet pieces of the optical film is wound in the continuous roll with the first side, the said film width direction orthogonal to the side corresponding to the length the second when the side, with respect to the first side of the sheet piece immediately before stacked previously, corresponds then the first side of the next sheet piece to be stacked, the second side of the immediately preceding sheet piece hand, as the second side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
    In two or more sheet pieces that are stacked on one side of the liquid crystal panel, the largest direction of length perpendicular to the film width and the film width of the sheet piece is first laminated sheet pieces to be laminated in subsequent of the film width and the direction orthogonal to the film width so that gradually decrease in length, in the direction perpendicular to the film width and the film width of the sheet pieces of the optical film is wound into the two or more continuous roll length is set, the method of manufacturing the liquid crystal display device according to claim 15.
  17. A liquid crystal panel sheet pieces are laminated by said sticking substep, before the next sticking substeps laminating the following sheet pieces, further comprising a horizontal rotation step of 90 ° horizontally rotated with respect to the conveying direction of the liquid crystal panel ,
    In the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll with the first side, and the side corresponding to the length of the direction perpendicular to the film width and the second side when, with respect to the first side of the sheet piece just before being stacked prior to said horizontal rotation step, wherein the second side of the next sheet piece corresponds, with respect to the second side of the immediately preceding sheet piece as the first side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
    The first side of the next sheet piece, said to be smaller than the second side of the preceding sheet strip, film width of the sheet pieces of the optical film is wound in the continuous roll is set, and,
    The second side of the next sheet piece, to be smaller than the first edge of the immediately preceding sheet piece, a direction perpendicular to the film width of the sheet pieces of the optical film is wound in the continuous roll the length of is set, the method of manufacturing the liquid crystal display device according to claim 15 or 16.
  18. Conveying a continuous roll sheet piece of the optical film of the predetermined film width, including an adhesive is wound a carrier film which are stacked next to each other, and the carrier film conveying means for conveying the carrier film, a liquid crystal panel conveying means for, while conveying the liquid crystal panel, a sheet piece lamination apparatus of the optical film and a sticking means for laminating the sheet piece is peeled off from the carrier film to the liquid crystal panel side through the pressure-sensitive adhesive with 2 or more, by the two or more sheet piece lamination apparatus, two or more sheet pieces, forming a liquid crystal display element by laminating the liquid crystal panel side in order for each sheet piece, a manufacturing system of the liquid crystal display device ,
    In two or more sheet pieces that are stacked on one side of the liquid crystal panel, each of the four sides of the sheet pieces are then stacked, the four sides of the sheet piece laminated immediately before, corresponding in a laminated state so as to be smaller than the sides, the two or more sheet pieces film width and the direction of length perpendicular to the film width of the optical film continuously being roll wound is set, the manufacturing system of the liquid crystal display device .
  19. In the sheet piece, the edges corresponding to the film width of the sheet pieces of the optical film is wound in the continuous roll with the first side, the said film width direction orthogonal to the side corresponding to the length the second when the side, with respect to the first side of the sheet piece immediately before stacked previously, corresponds then the first side of the next sheet piece to be stacked, the second side of the immediately preceding sheet piece hand, as the second side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
    In two or more sheet pieces that are stacked on one side of the liquid crystal panel, the largest direction of length perpendicular to the film width and the film width of the sheet piece is first laminated sheet pieces to be laminated in subsequent of the film width and the direction orthogonal to the film width so that gradually decrease in length, in the direction perpendicular to the film width and the film width of the sheet pieces of the optical film is wound into the two or more continuous roll length is set, the manufacturing system of the liquid crystal display device according to claim 18.
  20. A liquid crystal panel sheet pieces are laminated by said attaching means, before the next attaching means for stacking the next sheet piece, further comprising a horizontal rotating unit for rotating 90 ° the horizontal with respect to the transporting direction of the liquid crystal panel,
    In the sheet piece, the edges corresponding to the film width of the optical film is wound in the continuous roll with the first side, and the side corresponding to the length of the direction perpendicular to the film width and the second side when the relative said first edge of the immediately preceding sheet piece laminated prior to rotation by the horizontal rotating unit, the next of said second sides corresponding sheet section, the second side of the immediately preceding sheet piece hand, as the first side of the next sheet piece correspond, the next sheet piece is laminated to the sheet pieces of immediately preceding,
    The first side of the next sheet piece, said to be smaller than the second side of the preceding sheet strip, film width of the sheet pieces of the optical film is wound in the continuous roll is set, and,
    The second side of the next sheet piece, to be smaller than the first edge of the immediately preceding sheet piece, a direction perpendicular to the film width of the sheet pieces of the optical film is wound in the continuous roll the length of is set, the manufacturing system of the liquid crystal display device according to claim 18 or 19.
PCT/JP2011/076648 2010-11-25 2011-11-18 Method for manufacturing liquid-crystal display elements and system for manufacturing liquid-crystal display elements WO2012070485A1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012160953A1 (en) * 2011-05-20 2012-11-29 日東電工株式会社 Method for continuously producing optical display panel, and system for continuously producing optical display panel
WO2014024778A1 (en) * 2012-08-10 2014-02-13 日東電工株式会社 Method for continuously producing optical display panels and system for continuously producing optical display panels
US8894795B2 (en) 2011-05-20 2014-11-25 Nitto Denko Corporation Method and system for manufacturing liquid crystal display device
CN105093573A (en) * 2012-11-09 2015-11-25 日东电工株式会社 Manufacturing method of optical display panel and manufacturing system of optical display panel
US9261709B2 (en) 2011-05-20 2016-02-16 Nitto Denko Corporation Optical film roll set, and method for producing optical film roll set

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5616494B1 (en) * 2013-07-04 2014-10-29 日東電工株式会社 Forming method and apparatus of the laminate substrate
JP6178660B2 (en) * 2013-08-08 2017-08-09 住友化学株式会社 Production system of the optical display device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004361741A (en) * 2003-06-05 2004-12-24 Fuji Photo Film Co Ltd Optical film pasting device and method
JP2009271516A (en) * 2008-04-07 2009-11-19 Nitto Denko Corp Method for manufacturing optical display device
JP2009282385A (en) * 2008-05-23 2009-12-03 Nitto Denko Corp Method of manufacturing optical display device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004354487A (en) * 2003-05-27 2004-12-16 Toshiba Matsushita Display Technology Co Ltd Liquid crystal display device and polarizing plate
US20050238852A1 (en) * 2004-04-23 2005-10-27 Naoki Nakayama Optical products for displays
JP5202889B2 (en) * 2007-06-29 2013-06-05 日東電工株式会社 Laminated polarizing plate and manufacturing method thereof The liquid crystal display device
JP4785944B2 (en) * 2008-04-16 2011-10-05 日東電工株式会社 Method for manufacturing an optical display device
JP4629156B2 (en) * 2009-05-15 2011-02-09 日東電工株式会社 Manufacturing system and a method of manufacturing an optical display device, and, roll set and a manufacturing method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004361741A (en) * 2003-06-05 2004-12-24 Fuji Photo Film Co Ltd Optical film pasting device and method
JP2009271516A (en) * 2008-04-07 2009-11-19 Nitto Denko Corp Method for manufacturing optical display device
JP2009282385A (en) * 2008-05-23 2009-12-03 Nitto Denko Corp Method of manufacturing optical display device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012160953A1 (en) * 2011-05-20 2012-11-29 日東電工株式会社 Method for continuously producing optical display panel, and system for continuously producing optical display panel
JP2013008005A (en) * 2011-05-20 2013-01-10 Nitto Denko Corp Consecutive manufacturing method of optical display panel and consecutive manufacturing system of optical display panel
US8894795B2 (en) 2011-05-20 2014-11-25 Nitto Denko Corporation Method and system for manufacturing liquid crystal display device
US9261709B2 (en) 2011-05-20 2016-02-16 Nitto Denko Corporation Optical film roll set, and method for producing optical film roll set
US9575343B2 (en) 2011-05-20 2017-02-21 Nitto Denko Corporation Method for continuously producing optical display panel, and system for continuously producing optical display panel
WO2014024778A1 (en) * 2012-08-10 2014-02-13 日東電工株式会社 Method for continuously producing optical display panels and system for continuously producing optical display panels
US9561641B2 (en) 2012-08-10 2017-02-07 Nitto Denko Corporation Method and system for continuously manufacturing optical display panel
CN105093573A (en) * 2012-11-09 2015-11-25 日东电工株式会社 Manufacturing method of optical display panel and manufacturing system of optical display panel
CN105093573B (en) * 2012-11-09 2018-08-24 日东电工株式会社 Optical display panel manufacturing method and manufacturing system of an optical display panel

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