TW201329561A - System for continuous production of liquid crystal display elements and method for continuous production of liquid crystal display elements - Google Patents

Abstract

This system for the continuous production of liquid crystal display elements is provided with a half cutting device, which, in an optical film laminate, leaves a carrier film and severs the optical film in the widthwise direction thereof to form an optical film sheet piece, and a paste-together device that pastes the sheet piece peeled from the carrier film to a liquid crystal panel, wherein the half cutting device has a blade and a pedestal facing the blade, and the pedestal has a structure resulting from layering a first pedestal section, which is proximal to the blade, and a second pedestal section, which is distal to the blade and has an elasticity that is higher than that of the first pedestal section.

Description

Continuous manufacturing system of liquid crystal display element and continuous manufacturing method of liquid crystal display element

The present invention relates to a continuous manufacturing system for a liquid crystal display element in which a carrier film is retained in an optical film laminate to cut an optical film in a width direction thereof to form a sheet of an optical film, and a sheet peeled from the carrier film is attached to a liquid crystal panel. And a continuous manufacturing method of a liquid crystal display element.

There is known a continuous manufacturing system of a liquid crystal display element comprising: a half-cutting device (cutting mechanism) having a carrier film having a thickness of 10 to 50 μm and being formed on the carrier film via an adhesive layer and containing the adhesive a film in which the optical film is cut in the optical film layer of the layer, the optical film is cut along the width direction thereof to form a sheet of the optical film, and a bonding device that bonds the sheet peeled from the carrier film to On a liquid crystal panel (Patent Document 1).

Further, as a method for performing stable half-cutting, there is known a half-cut method in which a soft material having a low rigidity is used in a susceptor to cut a base sheet on a cutter side to peel off a soft material side. The sheet is biased toward the soft material side without being cut (Patent Document 2).

Previous technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2005-37416

Patent Document 2: Japanese Patent Laid-Open No. Hei 7-292816

However, in Patent Document 1, the cut surface of the sheet of the optical film is self-contained. The characteristics of optical use require high quality cut surfaces. For example, when the adhesive layer of the cut surface is deformed at the time of half-cutting, when it is bonded to the liquid crystal panel, infiltration of bubbles occurs at the deformed portion, and a dot defect occurs in the liquid crystal display element. Therefore, in the case of an optical film including an adhesive layer, not only the stability of the half cut but also the quality of the half cut (the quality of the cut surface) is also important. However, in this document, only an example of a cutter for cutting is described, and a method of performing half-cutting stably and with high quality has not been specifically mentioned.

Further, Patent Document 2 describes that a stable half cut is achieved by adjusting the hardness of the susceptor. However, in the case of half-cutting an optical film laminate having a low rigidity, it is difficult to perform half-cutting stably and with high quality only by hardness adjustment of the susceptor. That is, if the hardness of the susceptor is low, the optical film laminate is locally deformed by press-fitting of the cutter, resulting in a paste defect or a drag of the paste. On the contrary, if the hardness of the susceptor is high, when the tool is pushed too much, the optical film laminate cannot be biased toward the susceptor side, and the carrier film is broken. When the tool is insufficiently pressed, the optical film is not The cut causes the paste to be deflated or the paste to be dragged. Further, since the hardness of the susceptor depends on the constituent material, it is only possible to take the value of the dispersion, and it is difficult to optimize it.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a continuous manufacturing system of a liquid crystal display element which can stably and efficiently perform half-cutting of an optical film laminate, a continuous manufacturing method of the liquid crystal display element, and a half-cut apparatus.

In order to solve the above problems, the following invention has been completed as a result of intensive research.

The present invention relates to a continuous manufacturing system for a liquid crystal display device, comprising two devices: a half-cutting device, which is provided with an optical film layer having a carrier film and an optical film formed on the carrier film via an adhesive layer and containing the adhesive layer. a sheet in which the optical film is cut along the width direction thereof to form a sheet of the optical film, and a bonding device that bonds the sheet peeled from the carrier film to the liquid crystal panel; the half-cutting device has a tool and a base opposite the tool; the base having a first base portion that is closer to the tool and a tool that is farther from the tool and has a higher modulus than the first base portion The structure in which the second base portion of the elastic modulus is laminated.

According to this configuration, by making the layer (the first base portion) having a low modulus of elasticity the outermost surface of the tool side, it is possible to perform the half-cut stably without requiring a high precision for the cutting depth of the cutter. In addition, by making the second layer a layer having a high modulus of elasticity (second pedestal portion), it is possible to suppress a defect such as a paste defect or a drag of the paste, and it is possible to perform half-cutting with high quality. In other words, the degree of deformation of the optical film laminate at the time of cutting can be appropriately adjusted by the cooperation of the first base portion and the second base portion having different elastic modulus.

The mechanism for embodying the effects produced by the present invention will be described below. In Figs. 4A, 4B, and 5, the concept of half cut in the case where a base having a different modulus of elasticity is used is shown. In FIGS. 4A and 4B, when the modulus of elasticity of the susceptor 212 is high (higher hardness), the setting accuracy of the knives 201 or the shape accuracy of the knives themselves (for example, in the case of a circular knives refers to roundness). ) directly becomes a change in the amount of pressing of the blade 201 with respect to the film, and is liable to cause breakage of the carrier film 12 due to excessive cutting depth (Fig. 4A), or an optical film due to insufficient cutting. 13 is not cut (Fig. 4B) and the like. Further, in FIG. 5, when the modulus of elasticity of the susceptor 211 is low (the hardness is relatively soft), the optical film laminate 10 itself is also deformed by the deformation of the susceptor 211 corresponding to the pressing of the blade 201. It will be partially and excessively deformed at the cutting site. When the optical film laminate 10 is partially and excessively deformed, the unnecessary stress is applied to the adhesive layer 131, or the stability of the cut portion is lost, and a paste defect or The paste on the cut surface such as the drag is poor. On the other hand, as shown in FIG. 1, the susceptor 21 has a two-layer structure in which the modulus of elasticity is different, and the first base portion 211 on the outermost surface that is in contact with the carrier film has a lower modulus of elasticity than the second layer ( In the case of the elastic modulus of the second base portion 212 of the lower layer), the susceptor 21 is deformed by the first base portion 211 having a low modulus of elasticity, and is also subjected to a higher modulus of elasticity. 2 The base portion 212 is affected without excessive deformation. That is, the base 21 is deformed together with the optical film laminate 10 (the carrier film 12) in response to the pressing of the blade 201, and also provides a necessary reaction force for preventing excessive deformation of the portion of the optical film laminate 10. Thereby, the optical film 13 can be stably cut in half, and a clean cut surface which does not cause a paste defect or a drag of the paste can be formed. As described above, in the case of a single-layer susceptor, it is difficult to perform half-cutting of the optical film laminate in a stable and high-quality manner, but it is easier to introduce the concept of stratification as in the present invention.

According to an embodiment of the invention, the first base portion has a thickness of 0.1 mm to 5.0 mm.

According to an embodiment of the invention, the first base portion has an elastic modulus of 0.2 GPa to 60 GPa. The second base portion has an elastic modulus of 130 GPa or more.

In an embodiment of the invention, the difference between the elastic modulus of the first base portion and the elastic modulus of the second base portion is preferably 100 GPa or more. Thereby, the above effects are further exerted.

According to an embodiment of the invention, the cutter is a round knife. Since the round knife is difficult to machine into a perfect circle, it is inevitably uneven in the depth of cut. However, according to the present invention, by setting the susceptor to a laminated structure, it is possible to achieve high precision without cutting the depth of the cutting tool, and it is possible to perform stable and high-quality half-cutting even with a round knife.

According to an embodiment of the invention, the carrier film has a thickness of 20 μm to 50 μm.

Further, another invention is a continuous manufacturing method of a liquid crystal display element, which comprises the following two steps: a half-cutting step on an optical film having a carrier film and formed on the carrier film via an adhesive layer and comprising the adhesive layer In the optical film laminate, the carrier film is retained to cut the optical film in the width direction thereof to form a sheet of the optical film; and a bonding step of bonding the sheet peeled from the carrier film to the liquid crystal panel; The half-cutting step is a step of arranging a structure having a first base portion and a second base portion having an elastic modulus higher than an elastic modulus of the first base portion. In the first base portion, the optical film laminate is placed on the first base portion side of the carrier film, and the carrier film is left to cut the optical film in the width direction.

According to this configuration, by making the layer (the first base portion) having a low modulus of elasticity the outermost surface of the tool side, it is possible to perform the half-cut stably without requiring a high precision for the cutting depth of the cutter. Moreover, by making the second layer a layer having a higher modulus of elasticity (No. In the 2 base portion, it is possible to suppress a defect such as a defect in the paste or a drag of the paste, and the half cut can be performed with high quality. In other words, the degree of deformation of the optical film laminate at the time of cutting can be appropriately adjusted by the cooperation of the first base portion and the second base portion having different elastic modulus.

According to an embodiment of the invention, in the half-cutting step, the cutter for cutting the optical film is a round knife. By setting the susceptor to a laminated structure, high precision can be achieved without cutting the depth of the tool, and even a round knife can perform stable and high-quality half-cutting.

Still another aspect of the invention is a half-cutting device having a tool and a base opposite the tool, and the base has a first base portion that is closer to the tool and is farther from the tool A structure in which a second base portion having an elastic modulus higher than the elastic modulus of the first base portion is laminated.

According to this configuration, when the optical film is cut along the width direction of the carrier film to form a sheet of the optical film, the layer having the lower modulus of elasticity (the first base portion) is the most on the tool side. The surface can be semi-cut with high precision and stability without cutting the depth of the cutter. In addition, by making the second layer a layer having a high modulus of elasticity (second pedestal portion), it is possible to suppress a defect such as a paste defect or a drag of the paste, and it is possible to perform half-cutting with high quality.

According to an embodiment of the invention, the cutter is a round knife. By setting the susceptor to a laminated structure, high precision can be achieved without cutting the depth of the tool, and even a round knife can perform stable and high-quality half-cutting.

Hereinafter, referring to FIGS. 1 and 2, a continuous system of liquid crystal display elements is faced. The manufacturing system and the continuous manufacturing method will be specifically described, but the present invention is not limited to the embodiment.

The continuous manufacturing system of the liquid crystal display device of the present embodiment includes a continuous manufacturing system of liquid crystal display elements of two devices: a half-cut device 20 having a carrier film 12 and formed on the carrier film 12 via an adhesive layer 132. In the optical film laminate 10 including the polarizing film (optical film) 13 of the adhesive layer 132, the carrier film 12 is retained, and the polarizing film 13 is cut along the width direction thereof to form a sheet 135 of the polarizing film 13; The device 103 is configured to adhere the sheet 135 peeled from the carrier film 12 to the liquid crystal panel 4; and the half-cutting device 20 has a cutter 201 and a base 21 opposed to the cutter 201, and the base 21 has The first base portion 211 that is closer to the cutter 201 and the second base portion 212 that is farther from the cutter 201 and has an elastic modulus higher than the elastic modulus of the first base portion are laminated. structure.

In general, the polarizing film 13 is, for example, a polarizer film (having a thickness of about 10 to 30 μm), and a polarizer protective film formed on one or both sides of the polarizer film by an adhesive or an adhesive (thickness is Formed around 20~80 μm). Further, the optical film is not limited to a polarizing film which is required to have a polarizing film, and may be a film having other optical characteristics (for example, a retardation film, a viewing angle compensation film, a brightness enhancement film, etc.), or may be a plurality of film layers. It is a laminated structure. In the present embodiment, the polarizing film 13 may include a surface protective film, a retardation film, a brightness enhancement film, and the like.

The adhesive constituting the adhesive layer 132 is not particularly limited, and examples thereof include an acrylic adhesive, a polyoxygen adhesive, and a urethane adhesive. The thickness of the adhesive layer 132 is, for example, 10 to 40 μm.

As the carrier film, a conventionally known film such as a plastic film (for example, a polyethylene terephthalate film, a polyolefin film, or the like) can be used. Further, a film obtained by coating a film obtained by a suitable release agent such as a polyfluorinated or a long-chain alkyl group, a fluorine-based or a molybdenum sulfide, or the like may be used as a suitable film based on the prior art. The thickness of the carrier film 12 is preferably from 20 μm to 50 μm.

The thickness of the optical film laminate may be, for example, in the range of 50 μm to 400 μm. The rigidity of the optical film laminate body per 1 mm width is, for example, 0.1 to 50 N. Mm ² . Further, when the elastic modulus is E (MPa), the width is b (mm), and the thickness is h (mm), the rigidity (N.mm ² ) of the optical film laminate can be E × b × h ³ / 12 calculated.

(continuous roller)

The continuous roll 1 is formed by winding the optical film laminate 10 into a roll shape, wherein the optical film laminate 10 includes a carrier film 12, and is formed on the carrier film 12 via the adhesive layer 132 and has a direction parallel to the feed direction ( The polarizing film 13 (including the adhesive layer 132) of the absorption axis of the longitudinal direction). An example of a cross section of the laminated structure of the optical film laminate 10 is shown in Fig. 2(b).

(liquid crystal display element)

The liquid crystal display element is formed by forming at least a thin film of a polarizing film on one surface or both surfaces of the liquid crystal panel, and is incorporated in a driving circuit as needed. As the liquid crystal panel, any type such as a vertical alignment (VA) type or an in-plane switching (IPS) type can be used. The liquid crystal panel 4 shown in FIG. 2 is configured by sealing a liquid crystal layer between one of the opposing substrates.

A continuous manufacturing system of liquid crystal display elements is provided with a sheet stacking device 100, The sheet stacking apparatus 100 includes a film transport unit 101, a liquid crystal panel transport unit 102, a bonding apparatus 103 (attach roller 50a, driving roller 50b), and a liquid crystal panel transport unit 104. The sheet laminating apparatus 100 is laminated on a sheet 135 on which one surface of the liquid crystal panel 4 is attached with a polarizing film. The continuous manufacturing system of the liquid crystal display element may further include another thin film laminating device (not shown), and a thin film of the polarizing film may be attached to the other surface of the liquid crystal panel to laminate. The other sheet stacking device may have the same configuration as the sheet stacking device 100.

The film transporting unit 101 winds up the optical film laminate 10 from the continuous roll 1, and faces the long polarizing film 13 including the adhesive 132 to form a polarizing film 135, and the wafer 135 is self-supporting. The film 12 is peeled off and supplied to the bonding apparatus 103. Therefore, the film conveying device 101 has the winding portion 101a, the plurality of conveying portions 101b, the half cutting device 20, the dancer roller 30, the peeling portion 40, and the winding portion 60.

In the unwinding portion 101a, a continuous roll 1 is provided, and the optical film laminate 10 is taken up from the continuous roll 1.

The plurality of conveying portions 101b are provided to apply the tension to the optical film laminate 10 to transport the optical film laminate 10.

The half-cutting device 20 has a cutter 201 and a base 21 opposed to the cutter 201. The optical film laminate 10 is fixed to the susceptor 21 from the side of the carrier film 12, and the polarizing film 13 is cut along the width direction thereof, and a sheet 135 (including an adhesive layer) of the polarizing film is formed on the carrier film 12.

Examples of the cutter 20 include a Thomson knife, a cutter, a round knife (including a fixed type, a self-rotating type), and the like, and a round knife is preferable. The cutting edge of the circular knife is constantly moving, so the cutting blade is cut compared to the fixed position. The life of the knife is longer and the frequency of replacement is less. Moreover, in order to avoid the indentation of the surface of the low elastic layer (the outermost surface of the base), a round knife is preferably used as the cutting blade. It is not easy to leave traces, and is suitable for high-speed continuous processing of cutting (and further suitable for high-speed continuous production of liquid crystal display elements).

The tool radius and the roundness of the round knife are appropriately adjusted depending on the thickness of the optical film laminate, and the tool radius is usually 30 mm to 120 mm, and the roundness is 50 μm or less. Further, when the cutter is a cutter or a circular cutter, the half-cutting device 20 usually further includes a slide mechanism that slides the cutter in the width direction of the optical film laminate 10 .

(base)

The susceptor 21 has a two-layer structure of a first base portion 211 having low elasticity and a second base portion 212 having higher elasticity than the first base portion 211. Further, the first base portion 211 and the second base portion 212 may each have a single-layer structure or a laminated structure. The thickness of the first base portion 211 is, for example, 0.1 mm to 5.0 mm, preferably 0.2 mm to 3.0 mm, more preferably 0.3 mm to 1.0 mm. When the thickness is less than 0.1 mm, the first base portion 211 does not function, and the carrier film 12 is broken or the polarizing film 13 is not cut. When the thickness exceeds 5.0 mm, the second base portion 212 does not function (a moderate reaction force cannot be obtained), and a part of the optical film laminate 10 at the time of cutting and excessive deformation causes a paste defect and a paste drag. After that. Further, the first base portion 211 (in the case of a laminated structure, all the layers constituting the laminated structure) preferably have an elastic modulus of 0.2 GPa to 60 GPa, more preferably 1.0 GPa to 50 GPa. If the modulus of elasticity is less than 0.2 GPa, there is a tendency for the paste to be absent or the residue of the paste to be too soft. If the modulus of elasticity exceeds 60 GPa, the polarizing film 13 is not cut due to its excessive hardness or The breakage of the carrier film 12 is achieved. Examples of the material of the first base portion 211 having low elasticity include aluminum, nitrile rubber, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyvinyl acetate, Teflon (registered trademark), and ABS (for example). Acrylonitrile-Butadiene-Styrene, acrylonitrile-butadiene-styrene resin, acrylic resin, and the like.

The second base portion 212 having a higher elasticity than the first base portion 211 (in the case of a laminated structure, all the layers constituting the laminated structure) preferably have an elastic modulus of 130 GPa or more, and more preferably 150 GPa or more. If the modulus of elasticity is less than 130 GPa, there is a tendency to cause a defect in the paste or a residue of the paste. The material of the second base portion 212 which is highly elastic is, for example, steel such as stainless steel.

The difference between the modulus of elasticity of the first base portion 211 and the modulus of elasticity of the second base portion 212 is preferably 100 GPa or more, and more preferably 150 GPa or more.

The method of laminating the first base portion 211 and the second base portion 212 is not particularly limited, and examples thereof include fusion, a bonding material, an adhesive, and tape fixing.

In Fig. 3, an example of the half cutting device 20 is shown. The half cutting device 20 has a base 21 and a cutter 202. The base 21 is supported by the side support portions 214 at both ends thereof, and is provided away from the device mount 215. The susceptor 21 has a first base portion 211 and a second base portion 212. The first base portion 211 is attached to the second base portion 212 by the tape 213 . Further, the jigs 23 and 24 stand by at the home position (not shown). At the time of cutting, as shown in FIG. 3, the jigs 23 and 24 are moved to the left from the home position in FIG. 3, and the optical film laminate 10 is pressed against the surface 211a of the first base portion 211. In this state, the circular knife 202 waiting in the home position (not shown) is moved in the direction of the arrow A to perform half-cutting on the optical film laminate 10 (the carrier film 12 is not cut but retained, and cut Broken polarizing film 13). Then, The jigs 23 and 24 are moved to the right side (return to the original position) in FIG. 3, and the pressing of the optical film laminate 10 to the surface 211a of the first base portion 211 is stopped. The round knife 202 also returns to the original position for standby in the next half-cut process. Then, the optical film laminate 10 is moved by a specific distance, and the next half-cut process is performed.

The dancer roller 30 has a function of maintaining the tension of the carrier film 12.

The peeling portion 40 is folded back at the front end portion of the carrier film 12, and the sheet 135 of the polarizing film is peeled off from the carrier film 12. In the present embodiment, a sharp blade portion is used as the peeling portion 40 in the distal end portion, but the present invention is not limited thereto.

The winding unit 60 winds up the carrier film 12 from which the sheet 135 of the polarizing film has been peeled off.

The bonding apparatus 102 attaches the sheet 135 which has peeled the carrier film 12 by the peeling part 40 via the adhesive layer 132 from the upper side of the liquid-crystal panel 4 conveyed by the conveyance apparatus 80. In the present embodiment, the bonding apparatus 102 includes an attaching roller 50a and a driving roller 50b.

The transport device 80 is a one-series transport device that transports the liquid crystal panel 4 to the liquid crystal display element Y on which a thin film of a polarizing film is attached to one surface or both surfaces of the liquid crystal panel 4. The conveying device 80 is configured by, for example, a conveying roller 81, an adsorption plate, and the like.

In order to attach a sheet of another polarizing film to the other surface of the liquid crystal panel 4, the sheet laminating apparatus 100 described above can be used.

(Continuous manufacturing method of liquid crystal display element)

The continuous manufacturing method of the liquid crystal display element includes the following two steps: a half-cutting step on the optical film laminate having the carrier film 12 and the polarizing film 13 formed on the carrier film 12 via the adhesive layer 132 and including the adhesive layer 132. 10, the carrier film 12 is left to cut the polarizing film 13 in the width direction thereof to form the sheet 135 of the polarizing film 13, and a bonding step of bonding the sheet 135 peeled from the carrier film 12 to the liquid crystal On panel 4. The half-cutting step is a step of laminating a second base portion 212 having a first base portion 211 and an elastic modulus higher than the elastic modulus of the first base portion 211. The optical film laminate 10 is disposed on the first base portion 211 of the susceptor 21 on the first base portion 211 side of the carrier film 12, and the carrier film 12 is retained to extend the optical film 13 along the width thereof. The direction is cut off.

(Another embodiment)

In the present embodiment, the sheet 135 of the polarizing film is attached to the upper side of the liquid crystal panel. However, the sheet 135 is not limited thereto, and the sheet 135 may be attached from the lower side of the liquid crystal panel.

Further, in the present embodiment, the long polarizing film wound from the continuous roll is cut at a predetermined interval, but the present invention is not particularly limited to this configuration. For example, it is also possible to perform defect inspection on the long optical film laminate wound from the continuous roll, and perform cutting (so-called jump cutting) so as to avoid the defect based on the result of the inspection. Further, when a mark indicating a defect position is previously marked on the long polarizing film, the mark may be read to be cut so as to avoid the defect according to the mark.

Further, in the present embodiment, the long polarizing film has an absorption axis parallel to the longitudinal direction, but the absorption axis direction of the long polarizing film is not limited thereto. For example, the long polarizing film 13 may have an absorption axis parallel to the short side direction (width direction) and the other long polarizing film may have an absorption axis parallel to the longitudinal direction thereof.

Example

The embodiment is constructed using the apparatus of Figs. 2 and 3. The presence or absence of the breakage of the long-length polarizing film 13 and the optical film laminate 10 of the carrier film 12 when half-cut, and the quality of the half-cut (paste defect, paste drag) were evaluated by the half-cutting device 20. A VEGQ 1784CUAG150 (having a width of 400 mm and a rigidity of 8.5 N.mm ² per 1 mm width and a thickness of 273 μm) was used as the long optical film laminate 10. The long optical film laminate 10 has a long polarizing film (thickness: 235 μm) containing an adhesive (thickness: 23 μm), and PET (Polyethylene Terephthalate) as a carrier film. ) film (thickness 38 μm).

Use a round knife (roundness 30 μm, tool radius 100 mm) in the tool. The evaluation was performed under various conditions of changing the material of the susceptor (the first base portion having low elasticity and the second base portion having higher elasticity than the first base portion) and the thickness of the first pedestal portion. The elastic modulus was measured using SAICAS manufactured by Daipla Wintes Co., Ltd. The measurement conditions were set so as to be vertically pressed at 2 μm at a press-in speed of 0.05 μm/sec. A curved surface with a radius of curvature of 0.04 mm is used as the indenter.

In the susceptor of the first embodiment, polyethylene (PE, Polyethylene) having a thickness of 0.5 mm was used for the first base portion, and stainless steel (SUS) having a thickness of 30 mm was used for the second base portion.

The susceptor of the second embodiment is the same as the first embodiment except that polyethylene (PE) having a thickness of 3 mm is used for the first base portion.

The susceptor of the third embodiment is the same as that of the first embodiment except that aluminum (AL, Aluminium) is used for the second base portion.

The susceptor of the fourth embodiment is the same as the first embodiment except that aluminum (AL) having a thickness of 1.0 mm is used for the first base portion.

The susceptor of the fifth embodiment is the same as that of the first embodiment except that polystyrene (PS, Polystyrene) having a thickness of 0.5 mm is used for the first base portion.

The susceptor of Comparative Example 1 was set to a single layer of stainless steel (SUS) having a thickness of 30 mm.

The susceptor of Comparative Example 2 was set to a single layer of polyethylene (PE) having a thickness of 30 mm.

In each of Examples 1 to 4 and Comparative Examples 1 and 2, the long polarizing film was half-cut and 300 sheets were formed on the carrier film. The quality of the breakage and half cut of the carrier film (paste defect, paste drag) was visually confirmed. The results are shown in Table 1. In the evaluation of the cutting quality, if the number of sheets determined to be defective is 0, it is referred to as "○", and if it is 1 to 5, it is referred to as "△", and if it is 6 or more, it is indicated as "X".

As is clear from the results of Table 1, if the susceptors of the single layers of Comparative Examples 1 and 2 were used, the cutting quality was poor. If the single-layer susceptor of the stainless steel of Comparative Example 1 was used, the carrier film was broken. situation. On the other hand, none of Examples 1, 2 and 5 was broken by the carrier film, and the quality of the half cut was also good. In Examples 3 and 4, although the carrier film was not broken, the quality of the half cut was slightly lower than those of Examples 1, 2 and 5.

4‧‧‧LCD panel

10‧‧‧Optical film laminate

12‧‧‧ carrying film

13‧‧‧ polarizing film

20‧‧‧Half cutting device

21‧‧‧Base

103‧‧‧Fitting device

132‧‧‧Adhesive layer

135‧‧‧Flakes of polarizing film

201‧‧‧Tools

202‧‧‧ round knife

203‧‧‧Cutting knife

211‧‧‧1st base section

212‧‧‧2nd base section

Y‧‧‧Liquid display components

Fig. 1 is a schematic view showing an example of a susceptor of the present invention.

Fig. 2 is a schematic view showing an example of a manufacturing system of a liquid crystal display element.

Fig. 3 is a schematic view showing an example of cutting using a circular knife.

Fig. 4A is a schematic view showing an example of a single-layer base having a high modulus of elasticity.

Fig. 4B is a schematic view showing an example of a single-layer base having a high modulus of elasticity.

Fig. 5 is a schematic view showing an example of a single-layer base having a low modulus of elasticity.

12‧‧‧ carrying film

13‧‧‧ polarizing film

21‧‧‧Base

132‧‧‧Adhesive layer

201‧‧‧Tools

211‧‧‧1st base section

212‧‧‧2nd base section

Claims (9)

A continuous manufacturing system for a liquid crystal display element, comprising: a half-cutting device, which is retained in an optical film laminate having a carrier film and an optical film formed on the carrier film via an adhesive layer and containing the adhesive layer a carrier film that cuts the optical film in a width direction thereof to form a sheet of the optical film, and a bonding device that bonds the sheet peeled from the carrier film to a liquid crystal panel; the half-cutting device has a cutter, and a base opposite to the cutter; the base having a first base portion that is closer to the cutter and an elastic modulus that is farther from the cutter and has an elastic modulus higher than the first base portion The structure in which the second base portion is laminated. The continuous manufacturing system of the liquid crystal display element of claim 1, wherein the first base portion has a thickness of 0.1 mm to 5.0 mm. The continuous manufacturing system of the liquid crystal display element of claim 1, wherein the first base portion has an elastic modulus of 0.2 GPa to 60 GPa. The continuous manufacturing system of a liquid crystal display element according to any one of claims 1 to 3, wherein the second base portion has an elastic modulus of 130 GPa or more. The continuous manufacturing system of the liquid crystal display element of claim 1 or 2, wherein a difference between an elastic modulus of the first base portion and an elastic modulus of the second base portion is 100 GPa or more. A continuous manufacturing system of a liquid crystal display element of claim 1, wherein the tool is a circular knife. The continuous manufacturing system of the liquid crystal display element of claim 1, wherein the carrier film has a thickness of 20 μm to 50 μm. A continuous manufacturing method of a liquid crystal display element, comprising the following two steps: a half-cutting step, which is retained in an optical film laminate having a carrier film and an optical film formed on the carrier film via an adhesive layer and containing the adhesive layer The carrier film is cut along the width direction thereof to form a sheet of the optical film, and a bonding step of bonding the sheet peeled from the carrier film to the liquid crystal panel; the half-cutting step is as follows The step of forming the first base portion of the base having the first base portion and the second base portion having an elastic modulus higher than the elastic modulus of the first base portion The optical film laminate is placed on the first base portion side of the carrier film, and the carrier film is retained to cut the optical film in the width direction. A half-cutting device having a tool and a base opposite the tool, wherein the base has a first base portion that is closer to the tool and is farther from the tool and has a higher than the first base The structure in which the second base portion of the elastic modulus of the elastic modulus of the seat is laminated.