TWI554381B - Optical display device manufacturing system and optical display device manufacturing method - Google Patents

Description

Optical display device manufacturing system and optical display device manufacturing method

The present invention relates to an optical display device manufacturing system and an optical display device manufacturing method.

A conventionally manufactured optical display panel is attached to a polarizing film of a liquid crystal panel, and a liquid crystal panel and a polarizing film are used in a manufacturing system in which a long roll type polarizing film is rolled up and attached to a sheet liquid crystal panel. .

For example, Patent Document 1 and Patent Document 2 disclose an apparatus for bonding an optical film. Further, the optical film attaching device of Patent Document 1 controls the width direction of the strip film or the film to be aligned with the width direction of the substrate for attachment. Further, the optical element bonding apparatus of Patent Document 2 is a cutting optical element that can retain a diaphragm, and through these apparatuses, the optical film bonding cooperation can be efficiently performed.

Further, in the bonding machine disclosed in Patent Document 3, the plurality of unprocessed reels are pasted through the turntable.

[Previous Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Laid-Open Patent Publication No. 2004-361741 (published on December 24, 2004)

[Patent Document 2] Japanese Laid-Open Patent Publication No. 2009-61498 (published on March 26, 2009)

[Patent Document 3] Japanese Laid-Open Patent Publication No. 8-208083 Bulletin (public on August 13, 1996)

[Summary of the Invention]

However, the above conventional manufacturing system has the disadvantages of poor production efficiency of the optical display panel or large volume of the device.

The details will be described below. The manufacturing system disclosed in Patent Document 1 and Patent Document 2 includes a winding portion in which a polarizing film unprocessed reel is provided at one position. When the used unprocessed reel is replaced with a new unprocessed reel, the operator cuts the polarizing film of the used unprocessed reel and removes the reel from the unwinding portion, and then sets a new one in the unwinding portion. The reel is unprocessed and the polarizing film of the new unprocessed reel is bonded to the polarizing film remaining on the production line. The above replacement operation takes a lot of time, and the operation of the manufacturing system needs to be stopped during the replacement, which is one of the main reasons for the poor production efficiency of the optical display panel.

Further, in the bonding machine described in Patent Document 3, the unprocessed reel is adhered through the turntable. The laminating machine needs to keep the rotating space of the turntable. Therefore, a large installation space is required to set the turntable, so that the manufacturing system is bulky.

In view of the above, the present invention provides an optical display device manufacturing system capable of shortening the manufacturing time of the optical display device and having a small volume in order to solve the above-described drawbacks of the conventional device.

When the present inventors have completed the present invention, it has been found that when the liquid crystal panel is bonded to the polarizing film, it is preferable to bond it from under the liquid crystal panel.

Fig. 15 (a) and (b) are schematic diagrams showing the vector direction of the airflow (downward flow) when the polarizing film is attached to the upper side of the liquid crystal panel. In Fig. 15 (a) and (b), the area A is provided with a region such as a winding portion where the polarizing film is wound out, and the region B is mainly a region through which the polarizing film passes, and the region C is provided with a retracting polarizing film. The area such as the winding portion of the protective film. In the figure, clean air is supplied from a HEPA (High Efficiency Particulate Air) filter 40. Further, in Fig. 15(a), a grill 41 through which clean air passes is provided, so that the airflow can be moved in the vertical direction via the grill 41. In addition, in Fig. 15(b), since the grille 41 is not provided, when the airflow collides with the ground at the bottom of Fig. 15(b), it moves along the ground.

The areas A to C of Fig. 15 (a) and (b) are provided at 2F (2nd floor), and a transport mechanism for transporting the liquid crystal panel is provided between 1F and 2F. The clean air supplied by the HEPA filter 40 is difficult to generate a gas flow perpendicular to the liquid crystal panel passing through the 2F due to the blocking of the regions A to C. Relatively speaking, the airflow vector in the horizontal direction is large (the vector density is high). That is, it is difficult to generate a gas flow flowing above the liquid crystal panel conveyed by the transport mechanism, so that the rectification environment is deteriorated.

In addition, the vector direction of the airflow (downward flow) when the polarizing film is attached under the liquid crystal panel is as shown in Fig. 16 (a) and (b). In the case of the underlying type, the clean air supplied from the HEPA filter 40 is blocked by the transport mechanism between the 1F and the 2F due to the absence of the area A to C, and the rectification environment is not hindered. Furthermore, in Figure 16 (a), there is a compartment for letting clean air pass. The grid 41 is thus movable in the vertical direction via the grid 41. Based on these results, the inventors have found that when the polarizing film is bonded to the liquid crystal panel, both sides of the liquid crystal panel can be bonded together by the lower side.

The inventors have completed the present invention by considering the above results. In other words, the manufacturing system for manufacturing an optical display device includes a transport mechanism for transporting the liquid crystal panel and a second bonding mechanism for bonding the polarizing film under the liquid crystal panel, and the bonding mechanism includes: winding the first roll of the polarizing film a portion of the polarizing film is protected by a protective film; and a second unwinding portion of the complementary polarizing film is wound out, and the polarizing film is coupled to the polarizing film that is unwound from the first winding portion; The peeling portion of the protective film is peeled off; the polarizing film after peeling off the protective film is bonded to the bonding portion under the liquid crystal panel; and the winding portion of the protective film peeled off by the polarizing film is wound up. Further, the transport mechanism includes an inversion portion that reverses the liquid crystal panel, and the liquid crystal panel passes through one of the bonding mechanisms to bond the polarizing film to the lower side. The first winding portion and the second winding portion are horizontally movable in the direction of the core of the polarizing film, and the first winding portion and the second winding portion are arranged side by side under the conveying mechanism.

The manufacturing system is configured such that the liquid crystal panel that is transported by the transport mechanism adheres to the polarizing film under the liquid crystal panel through one of the bonding mechanisms. After the liquid crystal panel is inverted by the inverting portion, the polarizing film is bonded to the lower surface of the liquid crystal panel through another bonding mechanism, and the polarizing film is bonded to both sides of the liquid crystal panel in a state where the rectifying environment is not deteriorated. Optical display device.

Further, the bonding mechanism of the manufacturing system includes two unwinding portions of the first unwinding portion and the second unwinding portion, and the two are arranged side by side. Therefore, when the residual amount of the polarizing film of the first unwinding portion is almost exhausted, it is not necessary to use the first unwinding portion. The polarizing film reel is replaced with a new reel, and the polarizing film of the second unwinding portion is used to immediately connect the polarizing films of the two winding portions to quickly wind out the polarizing film. The manufacturing time of the optical display device can be reduced because the time required for the replacement of the unprocessed reel can be shortened.

Further, since the two unwinding portions are horizontally movable in the direction of the core of the polarizing film, when the polarizing film is replaced, the unprocessed reel of the new polarizing film can be disposed on the unwinding portion that moves in the horizontal direction. Therefore, unlike the conventional laminating machine having a turntable, the unwinding portion does not move upward. Because of the reduced range of movement of the take-up portion, a smaller manufacturing system can be provided.

The optical display device manufacturing system of the present invention includes the above-described transport mechanism for transporting the liquid crystal panel and two bonding mechanisms for bonding the polarizing film under the liquid crystal panel, and the bonding mechanism includes: winding out the polarizing film a first winding portion, the surface of the polarizing film is protected by a protective film; and a second winding portion of the supplementary polarizing film is wound out, and the polarizing film is coupled to the polarizing film that is unwound by the first winding portion; The polarizing film is peeled off from the peeling portion of the protective film; the polarizing film after peeling off the protective film is bonded to the bonding portion below the liquid crystal panel; and the winding portion of the protective film peeled off by the polarizing film is wound up. Further, the transport mechanism includes an inversion portion that reverses the liquid crystal panel, and the liquid crystal panel passes through one of the bonding mechanisms to bond the polarizing film to the lower side. The first winding portion and the second winding portion are horizontally movable in the direction of the core of the polarizing film, and the first winding portion and the second winding portion are arranged side by side under the conveying mechanism.

The bonding mechanism of the above manufacturing system has the first winding part and the second volume The second part of the output is rolled out, and the two are arranged side by side. When the residual amount of the polarizing film of the first unwinding portion is almost exhausted, it is not necessary to replace the polarizing film reel of the first unwinding portion with a new reel, and at the same time, the polarizing film of the second unwinding portion is used, and immediately The polarizing film of the unwinding portion is coupled to quickly roll out the polarizing film. The manufacturing time of the optical display device can be reduced because the time required for the replacement of the unprocessed reel can be shortened.

Further, the two unwinding portions are horizontally movable in the direction of the core of the polarizing film, and when the polarizing film is replaced, the unprocessed reel of the new polarizing film can be disposed on the winding portion that moves in the horizontal direction. Therefore, unlike the conventional laminating machine having a turntable, the unwinding portion does not move upward. Because of the reduced range of movement of the take-up portion, a smaller manufacturing system can be provided.

[The aspect for implementing the invention]

An embodiment of the present invention will be described with reference to Figs. 1 to 14 and the contents thereof are as follows.

[Structure of Optical Display Device Manufacturing System]

1 is a side view of an optical display device manufacturing system 100 of the present invention. The manufacturing system 100 winds up the laminated film 10, peels off the protective film 10a from the laminated film 10, and bonds the polarizing film 10b to one surface of the liquid crystal panel 2. Thereafter, the manufacturing system 100 bonds the polarizing film 110b to the other surface of the liquid crystal panel 2 to manufacture an optical display device. As the liquid crystal panel 2, a well-known liquid crystal panel can be used, and a well-known liquid crystal panel in which an alignment film is disposed between a substrate such as a glass substrate and a liquid crystal layer can be cited.

Manufacturing system 100 can be divided into a transport mechanism 12 and a two-fit mechanism. Each element of the first bonding mechanism (on the right side of the manufacturing system 100) is a winding portion 1 (first winding portion), a winding portion 1a (second winding portion), and a film connecting portion 3 (first film connecting portion) The film connecting portion 13 (second film connecting portion), the guide pulley 16, the half cutter 21, the support base 22, the blade edge 23 (peeling portion), the pressure rollers 24, 24a, and the winding portion 25. Furthermore, the term "," in this specification means "and".

The left side of the manufacturing system 100 further has a second bonding mechanism. The manufacturing system 100 includes a winding portion 101 (first winding portion), a winding portion 101a (second winding portion), a film connecting portion 103 (first film connecting portion), and a film connecting portion 113 (second film connecting portion) The guide wheel 116, the half cutter 121, the support base 122, the blade edge 123, the pressure rollers 124, 124a, and the winding portion 125.

As shown in FIG. 1, the first bonding mechanism and the second bonding mechanism are disposed below the transport mechanism 12. The pressure rollers 24, 24a of the first bonding mechanism are disposed on the upstream side of the transport path of the liquid crystal panel 2, and the pressure rollers 124, 124a of the second bonding mechanism are disposed on the downstream side of the transport path of the liquid crystal panel 2.

The pressure rollers 24, 124 of the two bonding mechanisms are located approximately above the liquid crystal panel 2, and the heights of the pressure rollers 24a, 124a are located below the liquid crystal panel 2. In addition, the components other than the pressure roller of the two bonding mechanisms are located below the transport mechanism 12. Further, the transport mechanism 12 includes an inverting portion 26. Each component will be described below.

The winding portion 1 and the winding portion 1a hold and unwind the laminated film 10, 20, and can adjust the tension applied to the laminated films 10, 20, and the protective film 10a, 20a protects the polarizing film 10b with an adhesive layer therebetween. , 20b. The laminated film 10 taken up by the winding unit 1 is conveyed to the production line side via the respective guide wheels 16. Production line The path of the laminated film 10 is conveyed, and the direction of the production line means the direction in which the laminated film 10 is carried. Further, the side of the winding portion means one side opposite to the side of the production line. The laminated film 20 taken up by the winding portion 1a has the same production line.

The unwinding portion 1a is provided with a raw reel R1a, which is used for replenishment. When the residual amount of the unprocessed reel R1 of the unwinding portion 1 is almost exhausted, the unprocessed reel R1a is wound up, and the laminated films 10, 20 are joined. Furthermore, the winding portion 1, 1a will be described in detail later with reference to FIG.

The components of the first bonding mechanism will be mainly described below. If there is no special labeling, the description of the same symbol components in the second bonding mechanism is the same.

The laminated film 10 is a film in which the protective film 10a is deposited on the polarizing film 10b bonded to the liquid crystal panel 2 with an adhesive layer interposed therebetween, and is output through the guide wheel 16. The laminated film 10 can also be regarded as a polarizing film having a protective film on its surface. In the present embodiment, the speed, tension, and the like of the rolled-up laminated film 10 can be appropriately adjusted. The width of the winding portions 1, 1a, 101, and 101a may be appropriately adjusted depending on the width of the laminated film 10 to be used, and is not particularly limited. For example, a winding portion capable of providing the laminated film 10 having a film width of 300 mm or more and 1200 mm or less can be used.

The laminated film 10 has a three-layer structure, and a well-known structure can be used, which is composed of a protective film 10a, an adhesive layer not shown, and a polarizing film 10b. An example of the structure of the polarizing film 10b is a film of a triacetyl cellulose (TAC) film coated with a protective film on both sides of a polarizing film, and coated on one or both sides of the TAC film (stacked) The adhesive layer is laminated, and the protective film 10a is laminated on the adhesive layer.

As the polarizer film, a film obtained by dyeing a polyvinyl alcohol film with iodine or the like and extending in one axial direction can be used. Also Partially formalized polyvinyl alcohol film, ethylene can be used. The vinyl acetate copolymer is a polyhydric alignment film such as a partially alkalized film or a hydrophilic polymer film such as a cellulose film, a dehydrated material of polyvinyl alcohol, or a dehydrochlorinated product of polyvinyl chloride. Etc. to replace the above film.

Further, the width of the polarizing film 10b can be set to 300 mm or more and 1200 mm or less. The manufacturing system 100 is first attached to the liquid crystal panel 2 in the transport direction D1, and is attached to the polarizing film 10b while aligning the short sides of the liquid crystal panel 2. Then, in the transport direction D1 of the liquid crystal panel 2, the long side of the liquid crystal panel 2 is aligned. The polarizing film 110b is attached to the lower surface. Thereby, the width of the polarizing film 10b corresponds to the long side length of the liquid crystal panel 2, and the width of the polarizing film 110b corresponds to the short side length of the liquid crystal panel 2.

The total thickness of the protective film 10a, the adhesive layer, and the polarizing film 10b is not particularly limited, and may be, for example, 100 μm or more and 500 μm or less. Further, the thickness of the polarizer of the polarizing films 10b and 110b is approximately 10 μm or more and 50 μm or less. On the other hand, when the laminated film 10 is actually used, other layers may be included in addition to the above three layers insofar as the problem is not caused.

After the protective film 10a is removed from the adhesive layer, the polarizing film 10b and the liquid crystal panel 2 are bonded together. The adhesive to be used for the adhesive layer is not particularly limited, and an adhesive such as a propylene-based, epoxy-based, or urethane-based adhesive can be used, but it is important to be easily peeled off from the protective film 10a. Therefore, the type of the adhesive can be selected in conjunction with the protective film 10a. Further, the thickness of the adhesive layer can be appropriately adjusted, and for example, it can be set to 0.5 μm or more and 75 μm or less.

As the protective film 10a, a well-known protective film can be used. Specifically, A polyester film, a polyethylene terephthalate film or the like is used. The thickness of the protective film is not particularly limited, but a protective film of 5 μm or more and 100 μm or less is preferably used. The width of the protective film 10a is the same as that of the polarizing film 10b, and can be set to 300 mm or more and 1200 mm or less. Further, the protective film 10a is also commonly referred to as a release film, a separator, or the like.

The transport mechanism 12 is for transporting the liquid crystal panel 2, and transports the liquid crystal on the pressure roller 24, 24a (bonding portion), the inverting portion 26, and the pressing rollers 124, 124a of the liquid crystal panel 2 and the polarizing film 10b (or 20b). Panel 2. The pressure rollers 24a and 124a are disposed at the same height in parallel with the transport mechanism 12.

Although the transport mechanism 12 is a roller structure, if the liquid crystal panel can be transported, the transport mechanism 12 is infinitely formed into a roller structure. The liquid crystal panel 2 is transported by the transport mechanism 12 from the right side of the drawing to the left side (the side of the press rolls 24, 24a). Further, the film connecting portions 3, 13 (film connecting portions 103, 113) and the cutting machine not shown in Fig. 1 will be described later.

The laminated film 10 is transported through the respective guide wheels 16. Since the liquid crystal panel 2 has a sheet shape, the long polarizing film 10b and the adhesive layer are cut before the polarizing film 10b is bonded. That is, the laminated film 10 is required to be half-cut. The components required for the half cutting are the half cutter 21 and the support base 22. The support base 22 is disposed at a position against the protective film 10a to prevent the laminated film 10 from being displaced. Further, the half cutter 21 is disposed at a position where the adhesive layer and the protective film 10a are cut, and supports the protective film 10a through the support base 22, and then cuts the polarizing film 10b and the adhesive layer by the half cutter 21. At this time, the protective film 10a is not cut. That is, the laminated film 10 is half-cut.

Next, referring to FIG. 2, the polarizing film 10b and the liquid crystal panel 2 will be described. fit. Fig. 2 is a side view showing the structure in the vicinity of the pressing rolls 24, 24a. As shown in Fig. 2, the laminated film 10 is half-cut by the half cutter 21, and the polarizing film 10b is adhered to the protective film by an adhesive layer not shown. That is, before the polarizing film 10b reaches the pressure rollers 24, 24a, it is cut by a half cutter 21 into a size suitable for bonding to the liquid crystal panel 2. In addition, there is no cutting protective film 10a.

The protective film 10a is peeled off through the blade edge 23. The side shape of the blade edge 23 is slightly triangular, and the side shape is a rounded structure without a water chestnut. The bottom surface (the pressing surface) of the blade edge 23 is inclined and disposed along the conveying direction of the protective film 10a. The friction between the blade edge 23 and the protective film 10a is small, and the component of the protective film 10a can be easily peeled off from the adhesive layer. For example, the surface can be processed by diamond-like carbon or the like. Thereby, the protective film 10a moves along the blade edge 23, and is peeled off and removed from the laminated film 10a at the tip end of the blade edge 23, and then the take-up portion 25 is retracted. The material constituting the blade edge 23 is a metal material or a resin material, and is not particularly limited. However, stainless steel, aluminum, and a resin material are recommended in consideration of corrosion resistance, and specific examples thereof include SUS304 and SUS420.

The winding portion 25 is a device for winding the protective film 10a, and the basic structure is the same as that of the winding portion 1, 1a except for winding. Further, as with the unwinding unit 1, 1a, it may be provided with a second winding portion.

The pressure rollers 24 and 24a press and bond the liquid crystal panel 2 transported by the transport mechanism to the polarizing plate 10b (or 20b). The pressure at which the pressure rollers 24, 24a are bonded can be appropriately adjusted.

The liquid crystal panel 2 to which the polarizing film 10b is bonded underneath is transported to the inverting portion 26 via the transport mechanism 12. The inverting portion 26 is for inverting the liquid crystal panel The component can be a well-known structure such as a robot arm. FIG. 3 is a plan view of the manufacturing system 100 facing the transport mechanism 12.

As shown in the figure, in the manufacturing system 100 of the present embodiment, the preferred aspect is that the transport direction of the liquid crystal panel is linear, which is different from the manufacturing method in which the transport direction is an L-shaped right angle bend. If the manufacturing system has a linear structure, the transport mechanism 12 can be disposed in a straight line, and the first bonding mechanism and the second bonding mechanism can be disposed below the transport mechanism 12. Therefore, the structural design of the manufacturing system 100 can be linear to provide a manufacturing system with better area efficiency. Manufacturing optical display devices are generally performed in clean rooms, and because the clean room is expensive to manufacture, it is advantageous to use a manufacturing system 100 that is more efficient in area.

The reversing portion 26 includes an adsorption portion, and the adsorption portion of the third image reversing portion 26 adsorbs a state above the liquid crystal panel 2. The adsorption unit needs to be capable of adsorbing and desorbing the liquid crystal panel 2, and the inversion unit 26 is a gas introduction type adsorption unit. After the liquid crystal panel 2 is adsorbed, the liquid crystal panel 2 can be inverted by the mechanical arm of the inverting portion 26. In the inverted liquid crystal panel 2, the liquid crystal panel 2 to which the polarizing film 10b is bonded is positioned on the upper side.

The inverting portion 26 also changes the direction of the liquid crystal panel 2 in the transport direction while inverting the liquid crystal panel 2 . The liquid crystal panel 2 of the manufacturing system 100 has a rectangular shape. First, the short side is transported in the transport direction, and the polarizing film 10b is bonded to the lower side of the liquid crystal panel 2. Next, the liquid crystal panel 2 is inverted by the inverting portion 26, and the long side of the liquid crystal panel 2 is rotated to follow the conveyance direction. The polarizing film used in the manufacturing system 100 is provided with an adsorption axis in the film transport direction, and is reverse-transferred to adhere the polarizing film adsorption axis to both sides of the liquid crystal panel 2. Interlaced with each other vertically.

After the inversion, the liquid crystal panel 2 facing the transport direction of the long side is like the first bonding mechanism, and the laminated film 110 wound up by the unwinding unit 101 is peeled off the protective film 110a by the second bonding mechanism. Next, the polarizing film 110b is bonded to the lower surface of the liquid crystal panel 2 via the pressure rollers 124 and 124a with an adhesive layer interposed therebetween. Thereby, an optical display device in which the polarizing film is bonded to both sides of the liquid crystal panel 2 is manufactured. Since the two polarizing films are bonded to the two sides of the liquid crystal panel 2 from below, the rectifying environment around the manufacturing system 100 is not hindered.

Fig. 4(a) is a perspective view showing the winding portion 1, 1a of the manufacturing system 100. For convenience of explanation, the remaining elements such as the film joint portion 3 are not disclosed in the drawings. Although the present invention has been described with respect to the unwinding portions 1, 1a, the unwinding portions 101 and 101a are also the same.

The take-up portion 1 and the take-up portion 1a of the present invention can be horizontally moved in the core direction of the polarizing film 10b. The direction of the core of the polarizing film refers to the core direction of the unprocessed reel R1 of the unwinding portion 1, and the unwinding portion 1a is the core direction of the unprocessed reel R1a, both of which are indicated as the core direction D2. Fig. 4(a) is a schematic view showing a state in which the residual amount of the unprocessed reel R1 is small.

Fig. 4(b) is a perspective view showing a state in which the unwinding portion 1 is horizontally moved in the core direction D2. The take-up portion 1 is moved by the slide type moving mechanism 27 provided at the bottom of the take-up portion 1. In Fig. 4(b), since the winding portion 1 moves only in the core direction D2, the state of Fig. 4(b) can also be referred to as a state in which the winding portion moves in the core direction D2. Further, the winding portion 1 can of course be moved in the direction of the core of the polarizing film which is reversed in the core direction D2. Further, the winding unit 1 can be moved in the direction of the winding-out portion 1a or away from the winding-out portion 1a by the moving mechanism 27. The winding portion 1a can also be provided with a moving mechanism 27 at the bottom, and can be inserted as the winding portion 1 Line moves.

The take-up portion 1 is movable in the core direction D2, and is different from the bonding machine having the turntable, and the take-up portion 1 does not move upward. Therefore, it is not necessary to retain the moving space of the unwinding unit 1 between the unwinding unit 1 and the transport mechanism 12, and the moving range of the unwinding unit 1 can be reduced. The winding portion 1a is also the same. Thus, a smaller manufacturing system 100 can be provided.

The manufacturing system 100 further includes the unwinding portions 1, 1a arranged side by side, and when the residual amount of the unprocessed reel R1 is exhausted, the laminated film 10 and the unprocessed reel R1a which are unwound from the unprocessed reel R1 can be easily joined. The laminated film 20 is taken up. Through the connection, the polarizing film 10b and the polarizing film 20b are connected. Further, the connection can be performed by an operator or, as will be described later, using the film connecting portions 3, 13. Further, in order to make the core direction of the unprocessed reel provided in each of the two unwinding portions perpendicular to the direction in which the transport mechanism 12 transports the liquid crystal panel 2, the unwinding portions 1, 1a are arranged in parallel along the transport direction.

In order to accelerate the replacement speed of the unprocessed reels of the unwinding portions 1, 1a, the distance between the unwinding portion 1 and the unwinding portion 1a is preferably 0.5 m or more and 5 m or less. More preferably, it is 1 m or more and 3 m or less. The distance between the take-up portion 1 and the take-up portion 1a means that the take-up portion 1 and 1a are provided with the distance between the cores of the unprocessed reels R1 and R1a.

Fig. 5 is a perspective view of the film connecting portion 3 and the cutter 7. The film connecting portion 3 includes the adsorption portions 4, 4a and the dicing bonding portion 5.

The adsorption unit 4‧4a is an element for adsorbing and holding a polarizing film. The adsorption portions 4, 4a have a flat plate shape and have a plurality of adsorption mechanisms 9 on their surfaces. There is no particular limitation on the adsorption mechanism 9 if the polarizing film can be adsorbed. Pu attracts air and adsorbs the structure of the polarizing film.

The cutting and fitting portion 5 is rotatable and has a plurality of faces. Specifically, the cut fitting portion 5 is polygonal and rotatable. Further, the preferred embodiment is movable in the vertical direction of the laminated film 10 (polarizing film 10b). When the laminated film 10 (polarizing film 10b) is moved in the vertical direction, when the bonding portion 5 is rotationally cut, the dicing and bonding portion 5 is positioned in the vertical direction of the laminated film 10 (polarizing film 10b), and is directed away from the polarized light. The film 10b moves in the direction and rotates again after moving. Next, the dicing and bonding portion 5 is located in the vertical direction of the polarizing film 10b, and moves in the direction of approaching the polarizing film 10b and returns to the original position. Thereby, it is possible to surely prevent the corner portion of the dicing and bonding portion 5 from coming into contact with the polarizing film 10b, which is very preferable.

Further, the dicing and bonding portion 5 has a polygonal column shape. As shown in Fig. 6, the three-sided cutting support surface 5a and the bonding surfaces 5b and 5c are provided, but the cutting support surface and/or the affixing surface may be provided. surface. For example, a structure having a one-side cutting support surface and a three- or four-sided bonding surface, or a two-sided cutting support surface and a three- or four-sided bonding surface may be mentioned. As shown in Fig. 5, in order to avoid the contact with the polarizing film, the cut portion 5 is preferably chamfered. The size of the dicing and bonding portion 5 can be appropriately adjusted depending on the width of the polarizing film 10b, and is not particularly limited. For example, the length can be set to 200 mm or more and 2000 mm or less (the length of the polarizing film 10b in the width direction), and the width can be set to 10 mm or more and 300 mm or less (the length of the polarizing film 10b in the transport direction).

Fig. 6 is a perspective view of the cutting and fitting portion 5. Fig. 6 is a view showing a state in which the dicing and bonding portion 5 shown in Fig. 5 is rotated clockwise by 1/3 turn. As shown in Figure 6 As shown in the figure, the dicing bonding portion 5 includes a dicing support surface 5a and two or more bonding surfaces 5b and 5c. The dicing support surface 5a supports the polarizing film 10b along the width direction of the polarizing film 10b (the laminated film 10). Further, the bonding surfaces 5b and 5c are provided with an adsorption mechanism 9 for adsorbing and connecting the bonding materials of the polarizing films 10b and 20b (the laminated films 10 and 20), and the bonding material covers the cutting line of the polarizing film 10b after the cutting.

The cutting support surface 5a is formed with a groove-shaped opening 6, and the blade portion of the cutter 7 having the dicing bonding portion 5 shown in Fig. 5 allows the opening 6 to pass therethrough. By forming the opening 6 to surely pass the cutter 7 in the width direction of the polarizing film 10b, the bonding of the polarizing films 10b, 20b (connection of the laminated films 10, 20) is accurately performed.

The cutting machine 7 can use a well-known cutter, and in order to easily cut the polarizing film 10b, it is preferably in the shape of a circular blade. Further, the cutter 7 is supported by the driveable base 8 in the width direction of the polarizing film 10b.

The bonding surfaces 5b and 5c have the same structure, and are provided with a plurality of adsorption mechanisms 9 like the adsorption portions 4, 4a. Further, the bonding surfaces 5b and 5c are provided with a single-sided adhesive tape 5d (bonding material), and the non-adhesive surface of the single-sided adhesive tape 5d is held by the suction mechanism 9, and the adhesive surface is disposed on the bonding surface 5b. The opposite side of 5c.

If the single-sided adhesive tape 5d can be attached to a polarizing film (laminated film), a well-known single-sided adhesive tape can be used. For example, the film material of the tape may be a polyethylene terephthalate film (PET film), cellulose, and paper, aluminum, non-woven fabric, polytetrafluoroethylene, polyvinyl chloride, polyvinylidene chloride, Polycarbonate, polyurethane, ABS resin, polyester, polystyrene Ethylene, polyethylene, polypropylene, polyacetal resin, polylactic acid, polyimine, polyamine, etc., and the adhesive used for the adhesive layer is propylene, epoxy, polyurethane, synthetic rubber Adhesives such as EVA, silicone, polyvinyl chloride, chloroprene rubber, cyanoacrylate, isocyanate, polyvinyl alcohol, and melanin.

The film connecting portion 3 is disposed on the opposite surface of the polarizing film 10b (the film connecting portion 13 is provided on the opposite surface of the protective film 10a). Therefore, in the first drawing, the polarizing film 10b is vertically disposed, and the film connecting portion 3 is also vertically disposed with respect to the polarizing film 10b. When the polarizing film 10b is provided in an oblique direction (or a horizontal direction or the like), the film connecting portion 3 may be provided in an oblique direction (or a horizontal direction or the like).

The film connecting portion 13 has the same structure as the film connecting portion 3. As shown in Fig. 1, the film connecting portions 3 and 13 are provided on the opposite surfaces of the adsorption mechanism 9 of the adsorption unit 4 (adsorption unit 4a) provided in the film connecting portions 3 and 13. Further, the passing positions of the laminated film 10 and the laminated film 20 are interposed between the film connecting portions 3 and 13. Further, the manufacturing system 100 including the film connecting portions 3, 13 is a preferred embodiment of the present embodiment, but may be in a state in which the film connecting portions 3, 13 are not provided. Further, the structures of the film connecting portions 103 and 113 are the same as those of the film connecting portions 3 and 13.

[Operation of Optical Display Device Manufacturing System]

The operation of the manufacturing system 100 of this embodiment will be described below. In addition, when this operation is demonstrated, the manufacturing method of an optical display device is demonstrated.

First, as shown in Fig. 1, the laminated film 10 is taken out from the unwinding unit 1 (winding-out procedure). Next, as shown in Fig. 2, half cut through the half cutter 21 The polarizing film 10b and the adhesive layer are peeled off from the protective film 10a through the blade edge 23 (peeling procedure). Further, the polarizing film 10b is pressed against the lower surface of the liquid crystal panel 2 through the pressure rollers 24 and 24a, thereby bonding the polarizing film 10b and the liquid crystal panel 2 (bonding procedure). Further, the peeled protective film 10a is taken up and collected through a winding portion not shown.

Then, the liquid crystal panel 2 to which the polarizing film 10b is bonded downward is inverted by the inverting portion 26, and the short side of the liquid crystal panel 2 along the transport direction is moved to a direction perpendicular to the transport direction (reverse run). Through the inversion process, one surface of the polarizing film that has not been attached is turned into the bottom surface of the liquid crystal panel 2.

The unwinding process, the peeling process, and the bonding process are performed again, and the polarizing film 110b is bonded under the liquid crystal panel 2, and the optical display device which bonded the polarizing film 10b and 110b on the both surfaces of the liquid crystal panel 2 is acquired.

In the above-described series of processes, the laminated film 10 is wound up, and the residual amount of the roll of the laminated film 10 held by the winding portion 1 is reduced. The following is a description of the connection procedure for connecting the polarizing films. Furthermore, the unwinding unit 101 is also the same.

After the laminated film 10 is cut, the laminated film 10 which is left on the production line side (cut from the unprocessed reel R1 of the unwinding portion 10) and the unprocessed reel R1a provided in the unwinding portion 1a are taken out. The procedure in which the laminated film 20 is joined. The connection procedure is exemplified by (1) a method of transmitting the operator and (2) a method of using the film connecting portions 3 and 13.

First, it specifies (1) the way through the operator. When the polarizing film (layered film) is connected by the operator, the operator cuts the laminated film 10 (polarizing film 10b) after the transport speed of the laminated film 10 is 0 m/min (after the laminated film 10 is stopped). Next, the laminate is rolled out from the unwinding portion 1a After the film 20 is cut and the end portion of the laminated film 20 is cut, a method of joining the single-sided adhesive tape 5d is exemplified.

As described above, the manufacturing system 100 of the present invention includes the two winding-out portions of the winding-out portions 1, 1a which are arranged in parallel. Therefore, even if the unprocessed reel R1 is not replaced with a new reel, the polarizing film (laminated film) can be immediately connected through the unprocessed reel R1a to accelerate the winding of the laminated film 20.

Further, unlike the conventional manufacturing system in which the winding portion is provided only at one place, the replacement of the unprocessed reel can be performed by the unwinding portion that can be vacant during operation, and the replacement work can be shortened. As a result, the manufacturing time of the optical display device can be shortened. After the manufacturing system 100 completes the joining of the laminated films 10, 20, the unprocessed reel R1 of the unwinding portion 1 is replaced with a new reel during the winding of the laminated film 20. When the residual amount of the laminated film 20 is reduced, the laminated film 20 and the laminated film 10 can be connected in the same manner.

Next, the case where the film connecting portions 3, 13 are used will be specifically described with reference to Fig. 7. The same applies to the case where the film connecting portions 103, 113 are used. Fig. 7 is a program diagram of a connection procedure of the manufacturing system 100. When the residual amount of the unprocessed reel R1 is reduced, after the conveyance speed of the laminated film 10 (polarizing film 10b) is 0 m/min, the adsorption portions 4, 4a and the cut are bonded as shown in Fig. 7(a). The portion 5 is moved to a direction perpendicular to the polarizing film 10b (the laminated film 10). Next, the adsorption mechanism 9 that has passed through the adsorption sections 4, 4a adsorbs and holds the polarizing film 10b (adsorption procedure).

At this time, the cutting support surface 5a of the dicing bonding portion 5 is in contact with the polarizing film 10b. Next, as shown in Fig. 7(b), a cutter (not shown) is moved along the opening 6 and the laminated film 10 is cut (cutting process). After the cutting, the cutting and bonding portion 5 is located in the vertical direction of the polarizing film 10b, and faces away from the polarizing film 10b. The direction (left side in the figure) moves. Next, after rotating 1/3 turn clockwise, it is located in the vertical direction of the polarizing film 10b, and moves toward the direction (the right side in the drawing) close to the polarizing film 10b. Thereby, as shown in FIG. 7(c), in order to cover the cutting line (beyond the cutting line) of the polarizing film 10b opposite to the single-sided adhesive tape 5d (not shown), the one-sided adhesive surface of the bonding surface 5b is adhered. Tape 5d (fitting procedure). This cutting line refers to the edge of the bonding surface 5b in the cutting surface produced by the cutting process on the polarizing film 10b. The bonding procedure is provided with a single-sided adhesive tape 5d to cover the cutting line. That is, the single-sided adhesive tape 5d is beyond the cutting line of the polarizing film 10b, and is disposed in a portion where the polarizing film 10b is not present.

Further, as shown in Fig. 7 (d) to (e), the single-sided adhesive tape 15d is adhered to the protective film 20a of the laminated film 20. The same components as those described above are denoted by the same reference numerals and will not be described again.

First, the laminated film 20 is taken up from the unwinding portion 1a, and as shown in Fig. 7(a), a cutter (not shown) is moved along the opening formed by the cutting support surface 15a and the laminated film 20 is cut. After the dicing, the dicing and bonding portion 15 is positioned in the vertical direction of the protective film 20a and moved in a direction away from the protective film 20a (the right side in the drawing). Next, after rotating 1/3 turn counterclockwise, it is positioned in the vertical direction of the protective film 20a and moved toward the direction of the protective film 20a (the left side in the drawing). Thereby, as shown in Fig. 7(e), the one-side adhesive tape 15d is attached so as to cover the cut line of the protective film 20a on the surface opposite to the single-sided adhesive tape 15d of the bonding surface 15b.

Next, as shown in FIG. 7(f), the adsorption portions 4, 4a and the dicing bonding portion 5 (the film connecting device 3) are brought close to the adsorption portions 14, 14a and the dicing bonding portion 15 (the film connecting portion 13), and Aligning the cut faces of the laminated film 10 and the laminated film 20 Near procedure). Thus, in the single-sided adhesive tape 5d covering the cut line of the polarizing film 10b and the single-sided adhesive tape 15d covering the cut line of the protective film 20a, the portion beyond the cut line is bonded to the polarizing film 20b and the protective film 10a. Thereby, the laminated films 10, 20 are joined. In other words, the protective films 10a and 20a and the polarizing films 10b and 20b of the protective polarizing films 10b and 20b are connected to each other. The portion beyond the cutting line is not bonded to the polarizing film 10b and the portion of the protective film 20a.

In Fig. 7(f), the film connecting portion 3 is brought close to the film connecting portion 13, but the film connecting portion 13 may be brought close to the film connecting portion 3 or the film connecting portions 3, 13 may be brought close to each other.

After the laminated films 10 and 20 are joined, as shown in Fig. 7(g), the preparation steps are such that the film connecting portions 3 and 13 are positioned in the polarizing film 10b and the protective film 20a in the vertical direction and moved in the direction away from each other. Thereafter, the dicing and bonding portion 5 is rotated 1/3 turn counterclockwise, and the dicing and bonding portion 15 is rotated by 1/3 turn clockwise. In this manner, the dicing support surface 5a faces the side of the polarizing film 10b, and the dicing support surface 15a faces the side of the protective film 20a (the position of Fig. 7(h)). This is the end of a series of procedures. Further, on the bonding surfaces 5c and 15c, the single-sided adhesive tapes 5d and 15d are adsorbed in advance. Therefore, after the new unprocessed reel R1 is provided in the unwinding unit 1, the laminated film 20 is subjected to the same procedure as the seventh (a) to (c) but opposite to the left and right, and the laminated film 10 is subjected to the seventh drawing. (d)~(e) The same procedure but opposite. Then, the same procedure as shown in the above-mentioned Fig. 7 (f) to (h) is carried out to connect the laminated films 20, 10. Further, after the single-sided adhesive tape 5d and 15d are used for replenishment, the laminated film (polarizing film) can be continuously connected.

As described above, it is more expensive to use the connection process of the film connecting portions 3, 13 for the adsorption, cutting, and bonding of the polarizing film. The fee is shorter and can be performed accurately, which is preferred.

Specifically, the manufacturing system 100 takes about 10 minutes to perform the connection process by the operator, and can be completed within one minute when the film connecting portions 3 and 13 are used.

Further, in the manufacturing system 100, when only the winding portion 1 is used, the winding portion 1a is not used, and in the case where the film connecting portions 3, 13 are not used, the operator needs to set the new unprocessed reel R1 in the unwinding portion 1. Thereafter, the laminated film 10 is bonded. This link process takes about 30 minutes. Therefore, it is apparent that the manufacturing system 100 of the present embodiment has great utility.

[Modification of Optical Display Device Manufacturing System]

Next, a manufacturing system 200 which is a modification of the film connecting portion of the present invention will be described. Figure 8 is a side view of manufacturing system 200. As shown in the figure, the manufacturing system 200 differs from the manufacturing system 100 in that the film holding cut portions 33, 133 are substituted for the film connecting portions 3, 103, and the first connecting material bonding portions 36, 136 are replaced by the first connecting material bonding portions 36, 136. Further, in Fig. 8, the cutter for dicing the cutting portion of the film is omitted. Further, the manufacturing system 200 further includes second connecting material bonding portions 36a and 136a.

The conveyance position of the laminated film 10 (first polarizing film) which is wound up by the winding unit 1 and the laminated film 20 (second polarizing film) of the polarizing film which is wound up by the winding part 1a is inserted in the film holding and cutting part 33. It is interposed between the first connecting material bonding portion 36. In other words, between the film holding cut portion 33 and the first connecting material bonding portion 36, the film holding cut portion 33 and the first connecting material bonding portion 36 are disposed to transport the laminated film 10 and the laminated film 20.

In the figure, the film holding cut portion 33 is opposed to the laminated film 10 The first joining material bonding portion 36 is disposed opposite to the laminated film 20. Further, the manufacturing system 200 includes the second connecting material bonding portion 36a in the winding direction of the laminated film 10 of the film holding and cutting portion 33, and the second connecting material bonding portion 36a faces the laminated film 10.

Fig. 9 is a perspective view of the film holding cutting portion 33. The film holding and cutting portion 33 includes a film holding portion 35 and a cutter 7, and the cutter 7 is supported by the susceptor 8. The film holding portion 35 is provided with an adsorption mechanism 9 on the film holding portion 35 on the opposite surface of the laminated film 10, and the film holding portion 35 is formed with a groove-shaped opening 6. The adsorption mechanism 9 is the same as the element included in the film connecting portion 3. The film holding and cutting portion 33 is different from the film connecting portion 3, and the suction mechanism 9 for adsorbing or desorbing the laminated film 10 is provided on one surface on which the opening 6 is formed. However, it is not limited to this structure. As shown in the film connecting portion 3, the film holding portion 35 may include the adsorption portions 4, 4a unless the adsorption mechanism 9 is provided. In the film holding portion 35, an opening 6 is formed horizontally along the width direction of the laminated film 10 (polarizing film 10a), and the cutter 7 cuts the laminated film 10, 20 along the opening 6.

The adsorption mechanism 9 forms the film holding portion 35 with the opening 6 as a boundary line. The laminated film 10 is divided into two by cutting the laminated film 10. The adsorption mechanism 9 can control the adsorption mechanism which is divided into two by the opening 6 as a boundary line for adsorption or desorption, and selects the laminated film 10 for adsorbing or desorbing the unwinding direction in the laminated film 10 after cutting. Or the laminated film 10 opposite to the winding direction. By this, for example, after the laminated film 10 is cut, only the laminated film 10 which is opposite to the winding direction is removed, and the film holding portion 35 is only in a state in which the laminated film 10 in the winding direction is adsorbed. After that, in the direction of adsorption and unwinding At the position of the laminated film 10, the laminated film 20 after the dicing is moved in the opposite direction to the winding direction, whereby the laminated film 10 which is formed in the winding direction is opposed to the cut surface of the laminated film 20 having the opposite winding direction. status.

Fig. 10 is a perspective view of the film holding and cutting portion 233, which is a modification of the film holding and cutting portion 33. In the film holding portion 235, the opening 6 is formed obliquely on the film holding portion 235. Thereby, the cutter 7 cuts both the laminated film 10 and the laminated film 20 obliquely in the width direction of the laminated film 10. According to this composition, when the laminated film after the dicing is joined, the stress applied to the connecting portion can be reduced, which is preferable.

Fig. 11 (a) and (b) are perspective views of the first connecting material bonding portion 36. The first connecting material bonding portion 36 includes the adsorption portions 4 and 4a and the connecting material holding portion 37. The connecting material holding portion 37 includes an adsorption mechanism 9 and sucks and holds a single-sided adhesive tape (connecting material) 35d. Further, the adsorption units 4 and 4a are provided with an adsorption mechanism 9 that adsorbs or desorbs the laminated film 20.

The adsorption portions 4, 4a are independent of each other and can control adsorption or desorption. In the laminated film 20 after cutting, the laminated film 20 and the laminated film 20 opposite to the winding direction can be selectively adsorbed or desorbed. The unwinding direction laminated film 20 is adsorbed or desorbed by the adsorption unit 4, and the laminated film 20 having the opposite winding direction is adsorbed or desorbed by the adsorption unit 4a.

The first connecting material bonding portion 36 is movable in the laminated film 20, and the adsorption portions 4, 4a and the connecting material holding portion 37 are independently movable. In Fig. 11(a), the connection member holding portion 37 is disposed at a position farther from the buildup film 20 than the adsorption portions 4, 4a, and the adsorption portions 4, 4a are disposed closer to the buildup film 20.

Fig. 11(b) is a schematic view showing a state in which the connecting material holding portion 37 is close to the laminated film 20. The arrangement position of the connecting material holding portion 37 is on the same surface as the adsorption portion 4, the single-sided adhesive tape 35d, and the adsorption portion 4a. The joining material holding portion 37 is moved in the direction of the laminated film 20, whereby the single-sided adhesive tape 35d is bonded to the laminated film 20. Further, the connecting material holding portion 37 has a slightly triangular column shape, and further has a surface on which the single-sided adhesive tape 35d is held on both sides. In the two-sided system, the single-sided adhesive tape 35d can be held in advance, and the single-sided adhesive tape 35d can be attached to the laminated film again by attaching the single-sided adhesive tape 35d without replenishing the single-sided adhesive tape 35d. Membrane (second connection procedure described later).

Further, the second connecting material bonding portion 36a has the same configuration as the first connecting material bonding portion 36, and includes the adsorption portions 4, 4a and the connecting material holding portion 37a. The laminated film 10 in the winding direction is adsorbed or desorbed by the adsorption unit 4, and the laminated film 10 in the opposite direction to the winding direction is adsorbed or desorbed through the adsorption unit 4a.

The connection process of the laminated film 10, 20 by the film holding cutting portion 33, the first connecting material bonding portion 36, and the second connecting material bonding portion 36a of the manufacturing system 200 will be described with reference to Fig. 12 . The case where the laminated film 110, 120 is connected through the film holding and cutting portion 133, the first connecting material bonding portion 136, and the second connecting material bonding portion 136a is also the same. Fig. 12 is a flowchart showing a connection procedure by the manufacturing system 200.

First, when the residual amount of the unprocessed reel R1 is reduced and the conveyance speed of the laminated film 10 (polarizing film 10b) is 0 m/min, as shown in Fig. 12(a), the film holding portion 35 is directed toward the polarizing film 10b ( The vertical movement of the laminated film 10), The polarizing film 10b is adsorbed by the adsorption mechanism 9. Further, one end of the laminated film 20 is fixed to the film adsorption reel 16a, and the adsorption portions 4, 4a are moved on the laminated film 20, and the adsorption mechanism 9 of the adsorption portions 4, 4a is again adsorbed and held by the adsorption film 10a (adsorption program). . The film adsorption reel 16a is a roll for adsorbing and holding a laminated film for holding one end of a supplementary laminated film (polarizing film). In the figure, the supplementary laminated film is the laminated film 20. However, when the laminated film 20 is bonded to the laminated film 10, a film adsorption roll is provided to cover the laminated film 10 at one end. The film adsorption roll is held.

After the adsorption process, the adsorption portions 4, 4a move toward the laminated film 10 to adjoin the laminated film 10 and the laminated film 20. In this state, the cutter 7 is moved along the opening to cut the laminated films 10, 20.

As shown in Fig. 12(b), after the dicing, the adsorption by the adsorption mechanism 9 of the film holding portion 35 is released, and the film holding portion 35 adsorbs the laminated film 10 on the side opposite to the winding-out direction (the lower laminated film 10). Only the laminated film 10 is detached and detached from the film holding portion 35. Further, the adsorption by the adsorption mechanism 9 of the adsorption unit 4 is released, and the adsorption unit 4 adsorbs the laminated film 20 (the upper laminated film 20) in the winding direction, and only the laminated film 20 is desorbed and separated from the adsorption portion 4. .

Further, as shown in Fig. 12(c), the adsorption portion 4a of the laminated film 20 (lower laminated film 20) which is adsorbed in the direction opposite to the winding direction is moved in the direction of the film holding portion 35. On the other hand, the laminated film 20 which is opposite to the winding-out direction is moved to the position where the laminated film 10 which is disposed opposite to the winding-out direction is disposed, and the laminated film of the laminated film 10 in the winding-out direction is reversed from the winding-out direction. In a relative state. The laminated film 20 which is opposite to the winding-out direction is adsorbed by the adsorption mechanism 9 of the film holding portion 35, and the adsorption of the adsorption portion 4a is released.

Then, as shown in Fig. 12(d), the connecting material holding portion 37 is moved in the direction of the film holding portion 35, whereby the laminated film 10 in the winding direction and the laminated film 20 opposite to the winding direction are attached to each other. Single-layer adhesive tape 35d of two laminated film cutting lines.

After the bonding, as shown in Fig. 12(e), the film holding portion 35 and the connecting material holding portion 37 are moved in the opposite direction to the laminated film after the joining.

Next, as shown in Fig. 12(f), the laminated film after the connection is wound out from the unwinding portion 1a, and is moved in the transport direction. When the cutting line of the laminated film after the connection is located at the opposite position of the connecting material holding portion 37a, the conveyance is stopped, and the laminated film 10 in the unwinding direction is adsorbed by the adsorption portion 4 of the second joining material bonding portion 36a, The adsorption portion 4a of the second connecting material bonding portion 36a adsorbs the laminated film 20 that is opposite to the winding-out direction.

As shown in Fig. 12(g), the single-sided adhesive tape 35d is faced to the back surface of the laminated film after bonding by the bonding material holding portion 37, and the second connecting material bonding portion 36a is moved. The connecting material holding portion 37a is moved toward the cutting line of the polarizing film after the connection, and the single-sided adhesive tape 35d held by the connecting material holding portion 37a is bonded to the back surface of the laminated film. Thereby, the single-sided adhesive tape 35d is bonded to both surfaces of the laminated films 10 and 20, and it is connected in the state with sufficient intensity|strength.

As shown in Fig. 12(h), the adsorption portion 4, the connecting material holding portion 37a, and the adsorption portion 4a of the second connecting material bonding portion 36a are separated from the connected laminated film, and the laminated film after the connection is started.

[Operation of the roll-out part of the manufacturing system]

As described above, the two-fitting mechanisms of the manufacturing system of the present invention each have The second winding portion is provided, and the laminated film (polarizing film) which is wound out by the two winding portions of the same bonding mechanism can be connected.

The program (the optical display device manufacturing method) for manufacturing the system of the present invention includes (1) a roll-out program, (2) a connection program, and (3) a replacement program. As described above, the unwinding program is a program for winding up the laminated film (polarizing film) from the unwinding portion, and the connecting procedure is to connect the laminated film (polarizing film) as shown in FIGS. 7 and 12 . program. Further, the connection procedure may be a procedure in which the operator cuts the laminated film unwound by the first unwinding portion and the second unwinding portion, and bonds the two laminated film through the single-sided adhesive tape.

The above replacement procedure is (1) horizontally moving the unwinding portions 1, 101 along the core direction of the unprocessed reels R1, R101, and (2) replacing the unprocessed reels R1, R101 with new unprocessed reels, (3) Then, the winding portion 1, 101 is horizontally moved in the direction of the core of the other end of the new unprocessed reel, and the winding portion 1, 101 is returned to the original position. In the manufacturing system of the present invention, the unwinding program, the connecting program, and the replacement program are performed through the unwinding portions 1, 1a, 101, and 101a, and the replacement time of the unprocessed reels can be effectively shortened.

Hereinafter, the operation of each of the winding portions and the order of joining the laminated films will be described with reference to Figs. 13 and 14 . Fig. 13 is a plan view showing the operation of the unwinding portions 1, 1a, 101, and 101a of the manufacturing system 200. Figure 14 is a flow chart of a manufacturing method using the manufacturing system 200.

The manufacturing system 200 starts the operation in a state in which the unwinding unit 1, 1a, 101, and 101a is provided with a raw roll ("Start" in Fig. 14). First, the laminated film 10, 110 is wound out from the unwinding portions 1, 101 (S1 in Fig. 14: first winding-out procedure). Started manufacturing optical display devices and unprocessed reels R1, R101 When the residual amount is almost exhausted, the laminated film 10, 20 and the laminated film 110, 120 are bonded (S2 of Fig. 14: first joining procedure). Next, the laminated films 20 and 120 are unwound from the unwinding portions 1a and 101a (S3 in Fig. 14: second winding-out procedure) to continue manufacturing the optical display device.

During the period S3, in order to replace the new unprocessed reel with the unwinding unit 1, 101, the first replacement procedure of S4 to S6 is performed. First, as shown in Fig. 13 (a) to (b), the unwinding portions 1, 101 are horizontally moved in the core direction of one end of the laminated films 10, 110 (S4 in Fig. 14). Next, the unprocessed reels R1 and R101 (polarizing film) of the unwinding parts 1, 101 are replaced with new unprocessed reels (polarizing film) (S5 of Fig. 14). After the replacement, the unwinding portions 1, 101 are horizontally moved in the core direction of the other end of the new unprocessed reel (polarizing film) (S6 of Fig. 14 and Figs. 13(b) to (c)). Thereby, the unwinding unit 1, 101 is returned to the original position.

When the remaining amount of the unprocessed reels R1 and R101 taken up by S3 is almost exhausted, the laminated films 20 and 10 are joined to the laminated films 120 and 110 (S7 in Fig. 14: second connection procedure). Thereafter, the laminated film 10, 110 is ejected from the unwinding portion 1, 101 (S8 in the FIG. 14: third winding-out procedure) to continue the manufacture of the optical display device.

During the period S8, in order to replace the new unprocessed reel with the unwinding unit 1a, 101a, the second replacement procedure of S9 to S11 is performed. First, as shown in Fig. 13 (c) to (d), the unwinding portions 1a, 101a are horizontally moved along the core direction of one end of the laminated films 20, 120 (S9 in Fig. 14). Next, the unprocessed reels R1a and R101a (polarizing film) of the unwinding parts 1a and 101a are replaced with new unprocessed reels (polarizing film) (S10 of Fig. 14). After replacement, the parts 1a, 101a will be rolled out Horizontal movement is performed along the core of the other end of the new unprocessed reel (polarizing film) (S11 of Fig. 14 and Figs. 13(d) to (a)). Thereby, the unwinding parts 1a, 101a are returned to the original position. The above description describes a series of operations of the unwinding portion, and the manufacturing of the optical display device continues from S11 to S1.

In the optical display device manufacturing method of the present invention, S3 and S4 to S6 are simultaneously performed, and S8 and S9 to S11 are simultaneously synchronized. Therefore, during the roll-up of the laminated film (polarizing film), the replacement of the unprocessed roll of the laminated film (polarizing film) can be performed to accelerate the connection of the polarizing film. Therefore, the stop time of the manufacturing system can be suppressed, and the optical display device can be manufactured in a shorter time.

In addition, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the claims, and the technical means disclosed in the different embodiments can be combined as appropriate. Implementations are also within the scope of the invention. For example, the number of guide wheels or the winding portion, the winding portion, the film connecting portion, and the transport mechanism of the manufacturing system are not limited to the positions shown in the drawings.

Furthermore, the embodiments of the present invention include the preferred embodiments described below.

In the optical display device manufacturing system of the present invention, the first unwinding portion and the second unwinding portion are preferably horizontally movable along the core direction of the polarizing mold to set a new unprocessed reel of the polarizing mold. .

Another optical display device manufacturing system according to the present invention includes: a transport mechanism for transporting a liquid crystal panel; and a bonding mechanism for bonding a polarizing film under the liquid crystal panel; wherein the bonding mechanism includes: a first volume a polarizing film for protecting a polarizing film with a protective film on the surface; a winding portion for winding out a complementary polarizing film that is coupled to the polarizing film that is unwound from the first winding portion; a peeling portion that peels off the protective film from the polarizing film; and a bonding portion a polarizing film that peels off the protective film is attached to the lower surface of the liquid crystal panel; and a winding portion for winding the protective film peeled off from the polarizing film; the conveying mechanism is provided with one of the liquid crystal panels reversed The polarizing film is attached to the lower portion of the liquid crystal panel by one of the bonding mechanisms; the first winding portion and the second winding portion are disposed along a core direction of the polarizing film The horizontal unwinding is performed to set a new unprocessed reel of the polarizing mold, and the first unwinding portion and the second unwinding portion are juxtaposed to each other.

In the optical display device manufacturing system of the present invention, the transport direction of the liquid crystal panel of the transport mechanism is preferably linear.

The transport direction of the liquid crystal panel is different from the manufacturing system in which the liquid crystal panel is oriented at right angles. If the transport direction of the liquid crystal panel is linear, the manufacturing system structure can be arranged along a straight line to provide a manufacturing system with better area efficiency.

Further, in the optical display device manufacturing system of the present invention, the transport position of the first polarizing film and the second polarizing film is interposed between the film holding and cutting portion and the first connecting material bonding portion, and the first polarizing film is from the first roll. a polarizing film that is taken up by the outlet, the second polarizing film is a polarizing film that is taken up from the second winding portion, and the film is provided with a second connecting material in a direction in which the cutting portion is wound out of the first polarizing film. a joint portion, wherein the second joint material bonding portion faces the first polarizing film; and the film holding and cutting portion includes a film holding portion and a cutting portion, wherein the film holding portion has adsorption for adsorbing or desorbing the first polarizing film a mechanism for cutting both the first polarizing film and the second polarizing film; the first bonding material bonding portion has an adsorption portion and a connection a bonding material holding portion, wherein the adsorption portion includes an adsorption mechanism for adsorbing or desorbing the second polarizing film, and the bonding material holding portion is for holding a bonding material that is beyond and attached to the polarizing film cutting line; the second bonding material bonding portion The adsorption unit and the connection material holding unit are provided, and the adsorption unit includes an adsorption mechanism for adsorbing or desorbing the first polarizing film in the unwinding direction after being cut by the cutter and the second polarizing film opposite to the winding direction. The connecting material holding portion is for holding the connecting material beyond and conforming to the cutting line of the polarizing film; the first polarizing film in the unwinding direction after being cut by the cutting machine and the second polarizing film opposite to the winding direction The cutting surface is opposite to the surface, and in this state, the connecting material that exceeds the cutting line of the two polarizing film is bonded through the first connecting material bonding portion, and the back surface of the polarizing film of the connecting material is bonded through the first connecting material bonding portion. Preferably, the bonding material of the second bonding material is attached to the bonding material beyond the cutting line of the polarizing film.

A manufacturing system for manufacturing an optical display device includes: a transport mechanism for transporting a liquid crystal panel; and a bonding mechanism for bonding a polarizing film under the liquid crystal panel; wherein the bonding mechanism includes: a first winding portion a second polarizing film for unwinding a polarizing film attached to the polarizing film rolled out by the first winding portion; a peeling portion that peels off the protective film from the polarizing film; a bonding portion that bonds the polarizing film that peels off the protective film to the lower side of the liquid crystal panel; and a winding portion that is used for winding a protective film for peeling off the polarizing film; the transport mechanism is configured to reverse the inversion portion of the liquid crystal panel, and the polarizing film is bonded to the lower portion of the liquid crystal panel by one of the bonding mechanisms; the first winding portion And the second winding portion is horizontally movable along a core direction of the polarizing film, and the first winding portion and the second winding portion are juxtaposed with each other a first polarizing film and a second polarizing film are disposed in a position to be interposed between a film holding cutting portion and a first bonding material bonding portion, wherein the first polarizing film is from the first winding portion. a polarizing film that is rolled out, the second polarizing film is a polarizing film that is unwound from the second winding portion; the film holding the second polarizing material bonding portion in the direction in which the cutting portion is wound out of the first polarizing film And the second bonding material bonding portion faces the first polarizing film; the film holding cutting portion is provided with a film holding portion and a cutting machine, wherein the film holding portion has the first polarizing light adsorbed or desorbed One of the film adsorption mechanisms; and the cutting machine is for cutting both the first polarizing film and the second polarizing film; the first bonding material bonding portion is provided with an adsorption portion and a bonding material holding portion, the adsorption And a suction mechanism for adsorbing or desorbing the second polarizing film, the connecting material holding portion is held beyond and attached to one of the connecting materials of the polarizing film cutting line; and the second connecting material bonding portion is provided with a adsorption portion And a joint material holding portion, The adsorption unit includes a first polarizing film that adsorbs or desorbs the winding direction cut by the cutter and a second polarizing film that is opposite to the winding direction, and the bonding material holding portion is kept beyond and attached to a connecting material of one of the polarizing film cutting lines; the first polarizing film in the unwinding direction of the cutting machine and the second polarizing film opposite to the winding direction are opposite to each other, and the first connecting portion is passed through the first link The material bonding portion is bonded to the bonding material of the two polarizing film cutting lines; and the back surface of the two polarizing film is bonded to the bonding material via the first bonding material bonding portion, and the second bonding material bonding portion is attached to the second bonding material. The bonding material of the polarizing film cutting line.

In the optical display device manufacturing system of the present invention, the transport direction of the liquid crystal panel of the transport mechanism is preferably linear.

In the optical display device manufacturing system of the present invention, the cutter preferably cuts both the first polarizing film and the second polarizing film obliquely in the width direction of the polarizing film.

Further, in the optical display device manufacturing method of the present invention, the optical display device manufacturing system includes: a first unwinding process for taking out a polarizing film from the first unwinding portion; and a polarizing light that is unwound from the first unwinding portion a first joining process of joining the film to the polarizing film rolled out from the second take-up portion; a second unwinding process of unwinding the polarizing film from the second unwinding portion; during the second unwinding process, the first roll The exit portion is horizontally moved along the core direction of one end of the polarizing film, and the polarizing film of the first unwinding portion is replaced with a new polarizing film, and then the first unwinding portion is horizontally along the core of the other end of the polarizing film. a first replacement procedure for moving; a second connecting procedure of connecting the polarizing film rolled out from the second winding portion and the polarizing film rolled out from the first winding portion; and rolling out the polarizing film from the first winding portion a third roll-out procedure; during the third roll-out procedure, the second take-up portion is horizontally moved along the core of one end of the polarizing film, and the polarizing film of the second take-up portion is replaced with a new polarizing film. Then the second take-up portion is along the core of the other end of the polarizing film A second horizontal movement of the replacement procedure.

[Industry use possibility]

The manufacturing system of the present invention can accelerate the connection of the polarizing film and shorten the manufacturing time of the optical display device when manufacturing the optical display device. Therefore, the present invention can be applied to the field of manufacture of optical display devices.

1,101‧‧‧Departure

1a, 101a‧‧‧Departs

2,102‧‧‧ LCD panel

3,103‧‧‧film joint

4,14,104,114‧‧‧Adsorption Department

4a, 14a, 104a, 114a‧‧ ‧ adsorption department

5,15,105,115‧‧‧cutting and fitting department

5a, 15a‧‧‧ cutting support surface

5b, 5c, 15b, 15c‧‧‧ fitting surface

5d, 15d, 35d‧‧‧ single-sided adhesive tape

6‧‧‧ openings

7,17‧‧‧Cutting machine

8‧‧‧Base

9‧‧‧Adsorption mechanism

10,110‧‧‧ laminated film

10a, 20a, 110a‧‧‧ protective film

10b, 20b, 110b‧‧‧ polarizing film

12‧‧‧Transportation agencies

13,113‧‧‧film joint

16,116‧‧·guide wheel

16a, 116a‧‧‧ film adsorption reel

20,120‧‧‧ laminated film

21,121‧‧‧Half cutting machine

22,122‧‧‧ support

23,123‧‧‧Knife edge

24,24a,124,124a‧‧‧pressure roller

25,125‧‧‧Retraction Department

26‧‧‧Reversal Department

27,27a‧‧‧Mobile agencies

33,133,233‧‧‧film keeping cutting section

35,235‧‧‧film holding department

36,136‧‧‧The first joint material bonding department

36a, 136a‧‧‧Second joint material bonding department

37, 37a‧‧‧Linked Material Holding Department

40‧‧‧HEPA filter

41‧‧‧ grille

100,200‧‧‧ Manufacturing system

A, B, C‧‧‧ area

D1‧‧‧Transportation direction

D2‧‧‧ core direction

R1, R1a, R101, R101a‧‧‧ unprocessed reels

S1-S11‧‧‧Steps

Fig. 1 is a side view showing the manufacturing system of the optical display device of the present invention.

Figure 2 is a side view of the structure near the edge of the manufacturing system.

Fig. 3 is a plan view showing the manufacturing system of the optical display device of the present invention.

Fig. 4(a) is a perspective view showing a state before the winding portion of the present invention is moved, and Fig. 4(b) is a perspective view showing a state in which the winding portion of the present invention is moved.

Fig. 5 is a perspective view of the film connecting portion and the cutting machine of the present invention.

Figure 6 is a perspective view of the cutting and fitting portion of the present invention.

Fig. 7 (a) to (h) are flowcharts showing a connection procedure of the manufacturing system of the present invention.

Figure 8 is a side elevational view of a variation of the manufacturing system of the present invention.

Figure 9 is a perspective view of the film holding cut portion of the present invention.

Fig. 10 is a perspective view showing a modification of the film holding and cutting portion of the present invention.

Fig. 11 (a) and (b) are perspective views of the first joining material bonding portion of the present invention.

Fig. 12 (a) to (h) are flowcharts showing a connection procedure of the manufacturing system of the present invention.

Fig. 13 (a) to (d) are plan views showing the operation of the winding portion of the present invention.

Figure 14 is a flow chart of the manufacturing method of the present invention.

Figure 15 is a side view of the airflow velocity vector of the top-mounted manufacturing system.

Figure 16 is a side elevational view of the airflow velocity vector of the sticker manufacturing system as in the present invention.

1,101‧‧‧Departure

1a, 101a‧‧‧Departs

2,102‧‧‧ LCD panel

3,103‧‧‧film joint

4,14,104,114‧‧‧Adsorption Department

4a, 14a, 104a, 114a‧‧ ‧ adsorption department

5,15,105,115‧‧‧cutting and fitting department

10,110‧‧‧ laminated film

10a, 20a, 110a‧‧‧ protective film

10b, 20b, 110b‧‧‧ polarizing film

12‧‧‧Transportation agencies

13,113‧‧‧film joint

16,116‧‧·guide wheel

20,120‧‧‧ laminated film

21,121‧‧‧Half cutting machine

22,122‧‧‧ support

23,123‧‧‧Knife edge

24,24a,124,124a‧‧‧pressure roller

25,125‧‧‧Retraction Department

26‧‧‧Reversal Department

100‧‧‧ Manufacturing System

D1‧‧‧Transportation direction

R1, R1a, R101, R101a‧‧‧ unprocessed reels

Claims (10)

An optical display device manufacturing system for manufacturing an optical display device, comprising: a transport mechanism for transporting a liquid crystal panel; and a bonding mechanism for bonding a polarizing film under the liquid crystal panel; wherein the bonding mechanism includes a first winding portion for winding a surface of a protective film to protect a polarizing film; a second winding portion for winding out the polarizing film that is unwound from the first winding portion a supplementary polarizing film; a peeling portion which peels off the protective film from the polarizing film; a bonding portion which bonds the polarizing film peeled off the protective film to the lower side of the liquid crystal panel; and a winding portion And a protective film for taking off the polarizing film; the transporting mechanism is configured to reverse the inverting portion of the liquid crystal panel, and the polarizing film is attached to the lower surface of the liquid crystal panel by one of the bonding mechanisms The first winding portion and the second winding portion are horizontally movable along a core direction of the polarizing film, and the first winding portion and the second winding portion are below the conveying mechanism Set side by side with each other. The optical display device manufacturing system according to claim 1, wherein the first winding portion and the second winding portion are horizontally movable along a core direction of the polarizing mold to set a new one. The unprocessed reel of the polarizing mold. An optical display device manufacturing system for manufacturing an optical display device, comprising: a transport mechanism for transporting a liquid crystal panel and the liquid crystal a two-bonding mechanism for bonding a polarizing film under the panel; wherein the bonding mechanism comprises: a first winding portion for winding a surface of a protective film to protect a polarizing film; and a second winding portion a retracting polarizing film for unwinding the polarizing film rolled out from the first winding portion; a peeling portion that peels off the protective film from the polarizing film; and a bonding portion that peels off the protective film a polarizing film of the protective film is attached to the lower surface of the liquid crystal panel; and a winding portion for winding the protective film peeled off from the polarizing film; the conveying mechanism is provided with a reverse portion of the liquid crystal panel; The polarizing film is bonded to the lower side of the liquid crystal panel by one of the bonding mechanisms; the first winding portion and the second winding portion are horizontally movable along a core direction of the polarizing film to set The unprocessed reel of the new polarizing mold, and the first winding portion and the second winding portion are arranged side by side. The optical display device manufacturing system according to any one of claims 1 to 3, wherein the liquid crystal panel transport direction of the transport mechanism is linear. The optical display device manufacturing system according to any one of claims 1 to 3, wherein a first polarizing film and a second polarizing film are disposed in a film-holding cutting portion a first polarizing film is a polarizing film that is unwound from the first winding portion, and the second polarizing film is between the first connecting material bonding portions a film is a polarizing film that is unwound from the second winding portion; the film holding the second polarizing material bonding portion in the direction in which the cutting portion is wound out of the first polarizing film, and the second connecting material bonding portion Facing the first polarizing film; the film holding cutting portion is provided with a film holding portion and a cutting machine, wherein the film holding portion has an adsorption mechanism for adsorbing or desorbing the first polarizing film; and the cutting machine The first bonding material bonding portion is provided with an adsorption portion and a connecting material holding portion, and the adsorption portion has adsorption or desorption of the second polarizing light. a bonding mechanism of the film, the bonding material holding portion is kept beyond and attached to one of the bonding materials of the polarizing film cutting line; the second bonding material bonding portion is provided with an adsorption portion and a bonding material holding portion, and the adsorption portion a first polarizing film that adsorbs or desorbs the winding direction cut by the cutter and a second polarizing film that is opposite to the winding direction, and the bonding material holding portion is kept beyond and adhered to the polarizing film One of the cutting lines a bonding material; the first polarizing film in the unwinding direction of the cutting machine and the second polarizing film opposite to the winding direction are in a facing state, and are adhered through the first connecting material bonding portion a connecting material that exceeds the cutting line of the two polarizing film; and a polarizing film that is bonded to the connecting material via the first connecting material bonding portion On the back surface, the second connecting material bonding portion is bonded to the connecting material beyond the cutting line of the polarizing film. The optical display device manufacturing system according to claim 5, wherein the cutting machine cuts both the first polarizing film and the second polarizing film obliquely in the width direction of the polarizing film. An optical display device manufacturing system for manufacturing an optical display device, comprising: a transport mechanism for transporting a liquid crystal panel; and a bonding mechanism for bonding a polarizing film under the liquid crystal panel; wherein the bonding mechanism includes a first winding portion for winding a surface of a protective film to protect a polarizing film; a second winding portion for winding out the polarizing film that is unwound from the first winding portion a supplementary polarizing film; a peeling portion which peels off the protective film from the polarizing film; a bonding portion which bonds the polarizing film peeled off the protective film to the lower side of the liquid crystal panel; and a winding portion And a protective film for taking off the polarizing film; the transporting mechanism is configured to reverse the inverting portion of the liquid crystal panel, and the polarizing film is attached to the lower surface of the liquid crystal panel by one of the bonding mechanisms The first winding portion and the second winding portion are horizontally movable along a core direction of the polarizing film, and the first winding portion and the second winding portion are arranged side by side; a transport position of a polarizing film and a second polarizing film Interspersed with And disposed between a film holding cutting portion and a first bonding material bonding portion, wherein the first polarizing film is a polarizing film that is unwound from the first winding portion, and the second polarizing film is rolled out from the second a polarizing film rolled out by the portion; the film holding the second polarizing material bonding portion in the direction in which the cutting portion is wound out of the first polarizing film, and the second connecting material bonding portion faces the first polarizing film; The film holding cutting portion is provided with a film holding portion and a cutting machine, wherein the film holding portion has an adsorption mechanism for adsorbing or desorbing the first polarizing film; and the cutting machine is for cutting the first polarizing light Both the film and the second polarizing film; the first connecting material bonding portion includes an adsorption portion and a connecting material holding portion, and the adsorption portion includes an adsorption mechanism for adsorbing or desorbing the second polarizing film, the connection The material holding portion is held and attached to one of the connecting materials of the polarizing film cutting line; the second connecting material bonding portion is provided with an adsorption portion and a connecting material holding portion, and the adsorption portion has adsorption or desorption through the cutting The direction of the machine cutting a polarizing film and an adsorption mechanism of the second polarizing film opposite to the winding direction, the bonding material holding portion is kept beyond and attached to one of the bonding materials of the polarizing film cutting line; and the winding direction is cut by the cutting machine When a polarizing film and a second polarizing film opposite to the winding direction are in a facing state, the first connecting material bonding portion is bonded to the cutting line beyond the polarizing film. And a bonding material that is bonded to the second polarizing film cutting line by the second connecting material bonding portion, and the connecting material of the second polarizing film bonding portion is bonded to the back surface of the two polarizing films of the connecting material via the first connecting material bonding portion. The optical display device manufacturing system according to claim 7, wherein the transport direction of the liquid crystal panel of the transport mechanism is linear. The optical display device manufacturing system according to claim 7 or 8, wherein the cutting machine cuts both the first polarizing film and the second polarizing film obliquely in the width direction of the polarizing film. An optical display device manufacturing system according to any one of claims 1 to 9, comprising: winding out one of the polarizing films from the first winding portion a winding-out procedure; connecting the polarizing film rolled out by the first winding portion to the polarizing film wound by the second winding portion; and connecting the polarizing film from the second winding portion to the first connecting program; and removing the polarized light from the second winding portion a second unwinding process of the film; during the second unwinding process, the first unwinding portion is horizontally moved along a core direction of one end of the polarizing film, and the polarizing film of the first unwinding portion is replaced Forming a new polarizing film, and then first moving the first winding portion horizontally along the core of the polarizing film; the polarizing film rolled out by the second winding portion and the first roll a second connecting process is performed by connecting the polarizing film taken out by the outlet; a third winding-out procedure of one of the polarizing films is taken out from the first winding-out portion; and the second winding-out is performed during the third winding-out process Department along the polarizing film One end of the core moves horizontally, and the polarizing film of the second take-up portion is replaced with a new polarizing film, and then the second unwinding portion is horizontally moved along the core of the other end of the polarizing film. Replace the program.