WO2019070063A1 - System and method for affixing resin film - Google Patents

Abstract

Provided are a system and a method for affixing a resin film to reduce warpage of a standard-size sheet laminate obtained as a result of affixation in an RTP system for affixing a resin film to a standard-size sheet of a predetermined shape. A resin film affixation system that uses a resin film laminate comprising a long belt-shaped carrier film and a resin film of a predetermined width direction dimension laminated on the carrier film via an adhesive layer and that detaches the resin film sheet with the adhesive layer including the resin film cut out to a predetermined length direction dimension together with the adhesive layer on the carrier film from the carrier film at an affixation station for affixation to a standard-size sheet of a predetermined shape, wherein the resin film affixation system is equipped with a resin film laminate supply mechanism for conveying the resin film laminate to the affixation station, a detachment member provided at the affixation station to detach the resin film sheet with the adhesive layer from the resin film laminate sent to the affixation station, a carrier film winding mechanism for winding the carrier film from which the resin film sheet with the adhesive layer has been detached, a standard-size sheet feed apparatus for feeding the standard-size sheet to the affixation station, an affixation mechanism provided at the affixation station to send the resin film sheet with the adhesive layer from which the carrier film has been detached to the affixation station and affix the resin film sheet with the adhesive layer to the standard-size sheet, and a drive control unit for driving and controlling the carrier film winding mechanism and the affixation mechanism in such a way that (1) the winding speed by the carrier film winding mechanism is greater than the affixation speed by the affixation mechanism during at least part of the time from the start of affixation by the affixation mechanism to the end of affixation and (2) the winding speed by the carrier film winding mechanism becomes equal to or greater than the affixation speed by the affixation mechanism for a predetermined time from the start of affixation by the affixation mechanism so that air bubbles are not generated in the standard-size sheet laminate obtained by affixing the resin film to the standard-size sheet.

Description

System and method for resin film affixing

The present invention relates to a system and method for resin film attachment, and more particularly, to a system and method for continuously attaching a resin film to a predetermined-shaped shaped sheet body.

While synchronizing the rotational speed of the take-up roller of the carrier film and that of the affixing roller, the carrier film on which the optical film is formed through the adhesive is turned inside by the peeling means, and the optical film is adhered from the carrier film Continuous production system (RTP (roll-to-panel) system) of an optical display panel is known (e.g., an RTP (roll-to-panel) system) which peels together with an adhesive and sticks the peeled optical film to an optical cell continuously via an adhesive. (See Patent Document 1 below).

In this RTP system, air bubbles may be generated between the optical cell and the optical film particularly due to bending or vibration of the optical film at the initial stage of bonding. Therefore, bending or vibration of the optical film in the initial stage of sticking is reduced by starting sticking before the start of winding of the carrier film or making the sticking speed higher than the winding speed, and the air bubbles are reduced. An RTP system has been proposed to reduce the occurrence of (see, for example, Patent Documents 2 and 3).

However, in such an RTP system, since a large tension is applied to the optical film at the time of affixing, a warp occurs in the optical display panel obtained as a result of the affixing. Therefore, in the initial stage of sticking, after the sticking is started before the start of winding or the sticking speed is made higher than the winding speed, the generation of air bubbles is reduced by setting the sticking speed equal to or less than the winding speed. An RTP system has been proposed which suppresses the warping of the optical display panel obtained as a result of pasting while causing it to be attached (for example, see Patent Documents 2 and 4).

Unexamined-Japanese-Patent No. 2004-338408 JP, 2013-186184, A Patent No. 5140788 gazette Patent No. 5868734

In this RTP system as shown in Patent Documents 2 and 4, etc., the optical cell is supported by a rigid support such as a glass substrate. Even if the bonding speed is made higher than the winding speed, it is possible to suppress the warpage generated in the optical display panel obtained as a result of the bonding. However, when applied to an optical cell not having a rigid support such as a glass substrate as an optical cell, for example, a flexible optical cell such as an organic EL display cell, the optical display panel obtained as a result of pasting Warpage occurs in the Similarly, when such an RTP system is applied to the attachment of a polarizing film or the like to a retardation film of a predetermined shape, a brightness enhancement film or the like, warpage occurs in the laminate obtained as a result of the attachment. Do. That is, when the RTP system is applied to affixing a resin film such as a polarizing film or a protective film to a flexible fixed sheet body having a predetermined shape such as a flexible optical cell, a retardation film, or a brightness enhancement film The warping occurs in the resin film laminate obtained as a result of pasting.

Therefore, the present invention relates to a system and method for resin film affixing that reduces warpage of a shaped sheet laminate obtained as a result of application in an RTP system that affixes a resin film to a shaped sheet having a predetermined shape. The purpose is to provide one.

As a result of intensive studies to solve the above problems, the present inventors have made it possible to increase the adhesion speed of the resin film to the fixed sheet at an initial stage of adhesion without making the resin film winding speed higher than the carrier film winding speed. Even if the take-up speed is higher than the attach speed in at least a part of the period from the start of attachment to the end of attachment, or even if the take-up is started before the start of attachment, air bubbles may not be generated. I found that. That is, conventionally, in order to reduce the generation of air bubbles, the sticking speed of the resin film to the fixed sheet at the initial stage of sticking is made greater than the winding speed of the carrier film or pasting before the start of winding. It was thought that it was necessary to start. However, since such a method increases the tension generated in the resin film, there is no need for the flexible shaped sheet body in which the tension generated in the resin film has a great influence, and the resin film is not necessary during the bonding process. In order to cause the resin film to bend in order to reduce the tension generated, the winding speed is made larger than the sticking speed in at least a part of the period from the sticking start to the sticking end, or the sticking start It has been found that even if the winding is started before, no air bubbles are generated, and it may be possible to simultaneously suppress the generation of air bubbles and the generation of warpage of the optical display panel.

One aspect of the present invention uses a resin film laminate comprising a long strip-like carrier film and a resin film of a predetermined width direction dimension laminated on the carrier film via an adhesive layer, the carrier film A resin film sheet with a pressure-sensitive adhesive layer including the above-mentioned resin film cut out in a predetermined lengthwise direction dimension together with the above-mentioned pressure-sensitive adhesive layer is peeled off from the carrier film at a bonding station and stuck on a predetermined shape shaped sheet And a resin film laminating system for conveying the resin film laminate to the affixing station, provided in the affixing station, and sent to the affixing station Peel off the resin film sheet with adhesive layer from the resin film laminate , A carrier film winding mechanism for winding up the carrier film from which the resin film sheet with adhesive layer is peeled off, and a fixed sheet feeding device for feeding the fixed sheet to the bonding station And a pasting mechanism provided in the pasting station for pasting the resin film sheet with the pressure-sensitive adhesive layer peeled off from the carrier film onto the fixed sheet body sent to the pasting station; (1) From the start of the affixing process by the affixing mechanism to the completion of the affixing process so that no bubbles are generated in the affixing sheet body laminate obtained by affixing the resin film to the affixing sheet body Winding speed by the carrier film winding mechanism is at least a part of (2) The take-up speed by the carrier film take-up mechanism is equal to or higher than the affixing speed by the affixing mechanism for a predetermined time from the start of the affixing process by the affixing mechanism. Thus, the present invention provides a resin film bonding system including the carrier film winding mechanism and a drive control unit that drives and controls the bonding mechanism.

In the drive control unit, the winding speed by the carrier film winding mechanism is higher than the adhesion speed by the adhesion mechanism from the start of the adhesion process until the adhesion speed by the adhesion mechanism reaches a predetermined speed. Then, the carrier film winding mechanism and the sticking mechanism can be driven and controlled so that the winding speed and the sticking speed become the same.

The drive control unit increases at a predetermined acceleration from the start of the affixing process until the affixing speed by the affixing mechanism reaches the predetermined speed, and the same speed becomes a constant speed, The carrier film winding mechanism and the affixing mechanism may be drive-controlled.

The drive control unit controls the winding speed by the carrier film winding mechanism and the sticking speed by the sticking mechanism during the time from the start of the sticking processing until the sticking speed by the sticking mechanism reaches a predetermined speed. Likewise, the carrier film winding mechanism and the sticking mechanism may be controlled so as to make the winding speed greater than the sticking speed thereafter.

One aspect of the present invention uses a resin film laminate comprising a long strip-like carrier film and a resin film of a predetermined width direction dimension laminated on the carrier film via an adhesive layer, the carrier film A resin film sheet with a pressure-sensitive adhesive layer including the above-mentioned resin film cut out in a predetermined lengthwise direction dimension together with the above-mentioned pressure-sensitive adhesive layer is peeled off from the carrier film at a bonding station and stuck on a predetermined shape shaped sheet And a resin film laminating system for conveying the resin film laminate to the affixing station, provided in the affixing station, and sent to the affixing station Peel off the resin film sheet with adhesive layer from the resin film laminate , A carrier film winding mechanism for winding up the carrier film from which the resin film sheet with adhesive layer is peeled off, and a fixed sheet feeding device for feeding the fixed sheet to the bonding station And a pasting mechanism provided in the pasting station for pasting the resin film sheet with the pressure-sensitive adhesive layer peeled off from the carrier film onto the fixed sheet body sent to the pasting station; And (1) the carrier film prior to the affixing process by the affixing mechanism so that bubbles are not generated in the shaped sheet laminate obtained by affixing the resin film to the affixable sheet body. Starting the winding process by the winding mechanism, and (2) the carrier film winding mechanism A resin film bonding system having a drive control unit that drives and controls the carrier film winding mechanism and the bonding mechanism so that the winding speed by the filming mechanism is equal to or higher than the bonding speed by the bonding mechanism. .

The drive control unit starts the winding process by the carrier film winding mechanism prior to the affixing process by the affixing mechanism, and the speed of the affixing process by the affixing mechanism is a predetermined speed. Until reaching, the carrier film winding mechanism winds the carrier film so that the winding speed by the carrier film winding mechanism is larger than the sticking speed by the sticking mechanism, and then the winding speed and the sticking speed become the same. The take-up mechanism and the pasting mechanism can be driven and controlled.

The drive control unit increases the take-up speed by the carrier film take-up mechanism at a constant acceleration from the start of the take-up process to the predetermined speed, and the affixing speed by the affixing mechanism Driving and controlling the carrier film winding mechanism and the sticking mechanism so as to increase with the constant acceleration same as the winding speed from the start of the sticking process to the reaching of the predetermined speed can do.

The carrier film take-up mechanism may comprise an outfeed roller.

The resin film laminate supply mechanism may include an infeed roller, and the drive control unit may drive the infeed roller and the outfeed roller in synchronization.

The resin film is a protective film, and the shaped sheet body is a cell comprising a resin base and at least one display cell having a display surface with a flexible thin film structure formed on the resin base. It can be a motherboard.

The resin film may be a polarizing film, and the shaped sheet body may be a retardation film.

The resin film may be a polarizing film, and the shaped sheet body may be a brightness enhancement film.

One aspect of the present invention uses a resin film laminate comprising a long strip-like carrier film and a resin film of a predetermined width direction dimension laminated on the carrier film via an adhesive layer, the carrier film A resin film sheet with a pressure-sensitive adhesive layer including the above-mentioned resin film cut out in a predetermined lengthwise direction dimension together with the above-mentioned pressure-sensitive adhesive layer is peeled off from the carrier film at a bonding station and stuck on a predetermined shape shaped sheet A resin film affixing method for attaching the resin film sheet from the resin film laminate sent to the affixing station, and the step of sending the resin film laminate to the affixing station And removing the resin film from the sheet. (1) Between the start of the affixing process for affixing the resin film sheet with an adhesive layer to the afore-mentioned sheet material and the completion of the affixing process so that no bubbles are generated in the resulting sheet sheet laminate. In at least a part, a take-up speed for taking up the carrier film from which the resin film sheet with pressure-sensitive adhesive layer is peeled is greater than a sticking speed for bonding the resin film sheet with pressure-sensitive adhesive layer to the shaped sheet body, And (2) The adhesive film-attached resin film sheet peeled off from the carrier film such that the winding speed is equal to or higher than the affixing speed for a predetermined time from the start of the affixing process, Providing a resin film affixing method including the step of affixing to the fixed sheet body sent to the affixing station. That.

In the method, the winding speed is larger than the sticking speed from the start of the sticking process until the sticking speed by the sticking mechanism reaches a predetermined speed, and then, the winding speed and the sticking are performed. The pressure-sensitive adhesive layer-attached resin film sheet peeled off from the carrier film may be pasted onto the fixed sheet sent to the pasting station so that the pasting speed is the same.

In the method, from the start of the affixing process until the affixing speed reaches the predetermined speed, it is increased at a predetermined acceleration, and the same speed is peeled off from the carrier film so as to be a constant speed. The pressure-sensitive adhesive layer-attached resin film sheet may be attached to the fixed sheet sent to the attaching station.

In the method, the winding speed and the bonding speed are the same from the start of the bonding process until the bonding speed reaches a predetermined speed, and then the winding speed is higher than the bonding speed. The resin film sheet with a pressure-sensitive adhesive layer peeled from the carrier film may be pasted onto the fixed sheet body sent to the pasting station so as to be large.

One aspect of the present invention uses a resin film laminate comprising a long strip-like carrier film and a resin film of a predetermined width direction dimension laminated on the carrier film via an adhesive layer, the carrier film A resin film sheet with a pressure-sensitive adhesive layer including the above-mentioned resin film cut out in a predetermined lengthwise direction dimension together with the above-mentioned pressure-sensitive adhesive layer is peeled off from the carrier film at a bonding station and stuck on a fixed sheet of a predetermined shape. And a step of sending the resin film laminate to the attachment station, and peeling off the resin film sheet with an adhesive layer from the resin film laminate sent to the attachment station. And the resin film is attached to the fixed sheet body. The pressure-sensitive adhesive layer-attached resin film sheet prior to the affixing process of attaching the pressure-sensitive adhesive layer-attached resin film sheet to the fixed-shape sheet body so that air bubbles are not generated in the formed shaped sheet body laminate The winding-up process which winds up the carrier film from which it peeled off is started, and (2) The winding-up speed which winds up the carrier film from which the resin film sheet with an adhesive layer was peeled off is the said resin film with an adhesive material layer The pressure-sensitive adhesive layer-attached resin film sheet peeled off from the carrier film is stuck on the fixed sheet body sent to the bonding station so that the sticking speed is higher than the sticking speed of sticking the sheet to the fixed sheet body. And a step of attaching a resin film.

In the method, the winding speed is larger than the sticking speed until the winding processing is started prior to the sticking processing and the speed of the sticking processing reaches a predetermined speed. Then, the pressure-sensitive adhesive layer-attached resin film sheet peeled off from the carrier film is transferred to the pasting station to the pasting station so that the winding speed and the pasting speed become the same. It can be pasted.

In the method, the winding speed is increased at a constant acceleration from the start of the winding process to the predetermined speed, and the sticking speed is set to the predetermined speed from the start of the sticking process. The pressure-sensitive adhesive layer-attached resin film sheet peeled off from the carrier film is sent to the pasting station so as to increase at the same constant acceleration as the winding speed until it reaches the fixed sheet. It can be attached to the body.

The resin film is a protective film, and the shaped sheet body is a cell comprising a resin base and at least one display cell having a display surface with a flexible thin film structure formed on the resin base. It can be a motherboard.

The resin film may be a polarizing film, and the shaped sheet body may be a retardation film.

The resin film may be a polarizing film, and the shaped sheet body may be a brightness enhancement film.

The above condition (1) is a condition for preventing an extra tension from being generated in the adhesive film layer-attached resin film sheet at the initial stage of attachment, and the condition (2) is an adhesive at the initial stage of attachment It is the conditions for producing the distortion for tension reduction in a resin film sheet with a material layer.

In the present specification and claims, "no air bubbles" does not mean that no air bubbles are generated at all, but includes that air bubbles are generated to such an extent that there is no problem in practical use. means.

According to the present invention having the above configuration, in the RTP system for bonding a resin film to a fixed-shaped sheet member of a predetermined shape, for bonding a resin film which reduces the warpage of the fixed-shaped sheet laminate obtained as a result of bonding. Systems and methods.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic side view which shows the whole of the resin film bonding system which concerns on the 1st Embodiment of this invention. It is a top view which shows an example of an optical display cell. It is a perspective view which shows roughly an example of the manufacturing process of the organic electroluminescent display cell which has a comparatively small display screen. It is a top view of an example of a fixed form sheet body. It is a sectional view of an example of a fixed shape sheet object. It is a figure which shows the detail of a paste process. It is a figure which shows the detail of a paste process. It is a figure which shows the detail of a paste process. It is a figure which shows the detail of a paste process. It is a figure shown about the speed relation of winding speed V1 in the whole period of pasting processing in a 1st embodiment, and pasting speed V2. It is a figure shown about the speed relation of winding speed V1 in the whole period of pasting processing in a 2nd embodiment, and pasting speed V2. It is a figure shown about a speed relation of winding speed V1 in the whole period of pasting processing in a modification of a 2nd embodiment, and pasting speed V2. It is a figure shown about the speed relation of winding speed V1 in the whole period of pasting processing in a 3rd embodiment, and pasting speed V2. FIG. 16 is a graph showing the relationship between the difference between the winding acceleration and the sticking acceleration in Examples 1-1 to 1-3 and Comparative Examples 1-1 to 1-10 and the curling amount of the shaped sheet laminate. FIG. 16 is a graph showing the relationship between the difference between the winding speed and the sticking speed in Examples 2-1 to 2-3 and Comparative Examples 2-1 to 2-4 and the curling amount of the shaped sheet laminate. FIG. 16 is a graph showing the relationship between the difference between the winding start point and the attachment start point of Examples 3-1 to 3-2 and Comparative Examples 3-1 to 3-5 and the curling amount of the shaped sheet laminate. FIG. 18 is a graph showing the relationship between the difference between the winding acceleration and the sticking acceleration in Examples 4-1 to 4-3 and Comparative Examples 4-1 to 4-7 and the curling amount of the shaped sheet laminate. FIG. 16 is a graph showing the relationship between the difference between the winding speed and the sticking speed in Examples 5-1 to 5-3 and Comparative Examples 5-1 to 5-4 and the curling amount of the shaped sheet laminate.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First Embodiment
FIG. 1 is a schematic side view showing the whole of a resin film bonding system according to a first embodiment of the present invention. In the resin film affixing system 10, the adhesive film-attached resin film sheet 74 laminated in a peelable manner on the long strip-like carrier film 72 via the adhesive layer is peeled off from the carrier film 72 and peeled off. The shaped sheet laminate BL can be continuously manufactured by attaching the material layer-attached resin film sheet 74 and the flexible shaped sheet B having a predetermined shape using the pair of attaching rollers 50. . The operation of each part of the resin film bonding system 10 can be controlled by the drive control unit 500. The resin film may be a polarizing film, a protective film or the like, and the flexible shaped sheet having a predetermined shape may be a flexible optical cell, a retardation film, a brightness enhancement film or the like.

In the present embodiment, the fixed sheet B is a fixed sheet. FIG. 2 shows an example of the optical display cell 1 constituting the cell mother board B. As shown in FIG. The optical display cell 1 has a rectangular shape having a short side 1a and a long side 1b in plan view, and a terminal portion 1c having a predetermined width is formed along one short side 1a. A large number of electrical terminals 2 for electrical connection are arranged in this terminal portion 1c. An area excluding the terminal portion 2 of the optical display cell 1 is a display area 1 d. The display area 1d has a width W in the horizontal direction and a length L in the vertical direction. In order to carry out the method of the present invention, the optical display cell 1 is preferably an organic EL display cell, but if it is a flexible thin film display cell, the method of the present invention can be applied. The optical display cell 1 can have various screen sizes from relatively small ones for cellular phones or smartphones or tablet applications to relatively large ones for television applications.

FIG. 3 is a perspective view schematically showing an example of a manufacturing process of an organic EL display cell having a relatively small display screen such as a smartphone or a tablet application. In this step, first, a glass substrate 3 as a heat resistant mother substrate is prepared, and a heat resistant resin material, preferably a polyimide resin, is applied to a predetermined thickness on the glass substrate 3 and dried to obtain a resin. The base 4 is formed. As the heat resistant resin material, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC) or the like can be used besides polyimide resin. In addition, as a material of the substrate, a flexible ceramic sheet as described in JP-A-2007-157501, or JP-A-2013-63892, JP-A-2010-13250, JP-A Flexible glass as described in the 2013-35158 publication can also be used. When a flexible ceramic sheet or flexible glass is used as a substrate, it is not necessary to use the glass substrate 3.

A plurality of organic EL display cells 1 are formed on the resin base material 4 in a state of being arrayed in rows and columns in a row by a known manufacturing method, and the resin base material 4 and the display cells form a cell mother board B Do. These are referred to as a cell motherboard, including the case where one display cell is formed on the resin substrate 4. Thereafter, the surface protective film 5 is bonded to cover the organic EL display cell 1 formed on the resin base 4. Here, the one in which the cell mother board B is bonded to a heat resistant substrate such as the glass substrate 3 is called a mother board structure.

4 (a) is a plan view showing an example of a cell mother board B in which the surface protection film 5 is not attached, and FIG. 4 (b) is a cross-sectional view taken along the line bb of FIG. The cell motherboard B with which the surface protection film 5 was bonded together is shown the state arrange | positioned on the glass substrate 3. FIG. As shown in FIG. 4A, in the cell mother board B, a plurality of optical display cells 1 form vertical columns and horizontal rows with the terminal portions 1a oriented in the horizontal direction. , Arranged in a matrix. The cell motherboard B is a rectangular shape having a short side B-1 and a long side B-2 as shown in FIG. 4A, and the reference point of the motherboard B is located near both ends of one short side B-1. The reference mark m is attached by printing, marking or any other appropriate method. The reference mark m is referred to as a reference when positioning the motherboard B. In bonding the optical film, the cell mother board B is sent in the direction shown by the arrow A in FIG. 4A, that is, in the vertical direction.

The cell mother board B in the state of having the glass substrate 3 is conveyed to the glass substrate peeling position where the glass substrate 3 is peeled off by a conveyance mechanism such as a fixed sheet conveyance mechanism 400 described later. The resin base 4 is peeled off by a known method. A technique for peeling a glass substrate from a resin substrate by laser irradiation is described, for example, in International Publication WO2009 / 104371.

Next, the cell mother board B from which the glass substrate 3 has been peeled is transferred by the panel member transfer device 400 to the bonding position of the bonding station 300.

The fixed sheet conveying mechanism 400 has a suction fixing means 402 for fixing the fixed sheet B in a suctioned state. Under the control of the drive control device 500, the suction fixing means 402 can suction and fix the upper surface of the fixed sheet B by vacuum suction in the suction section 404.

In order that the shaped sheet B has flexibility, as shown in FIG. 5A, a predetermined range P of the tip portion of the shaped sheet B protrudes forward from the leading end portion 406 of the suction fixing means 402, The entire surface or almost the entire surface other than the range P is fixed so as to be adsorbed. As described above, it is possible to use a through-hole type or porous type as an adsorption member capable of adsorbing the entire surface of a shaped sheet such as the shaped sheet B or the like. In the case of the through hole type, one having a hole diameter of 3 mm or less and a hole spacing (pitch) of 30 mm or less can be used. If the hole diameter is larger than 3 mm, the suction force is too strong, and there may be a problem that holes and / or unevenness may occur in the held shaped sheet body. If the hole spacing (pitch) is larger than 30 mm, the suction force may be too weak to cause a problem that it can not be held. As a through-hole type adsorption member, for example, a vacuum gripper (FMC series) manufactured by SCHMALZ can be used. As a porous type adsorption member, for example, use a vacuum adsorption chuck (micro pore diameter porous ceramics NPP-3D) manufactured by Nippon Tungsten Co., Ltd. or an ultrahigh molecular weight polyethylene porous film (Sunmap LC-T) manufactured by Nitto Denko Corporation. Can. The position at which the suction fixing means 402 suctions the shaped sheet B may be closer to the rear of the shaped sheet B so that the predetermined range P can be secured. The predetermined range P is a portion disposed between the bonding roller 50 before the adhesive film layer-attached resin film sheet 74 and the fixed sheet B are bonded by the pair of bonding rollers 50 as described later. And at least a part of this portion is nipped by the pair of bonding rollers 50. The predetermined range P is 50 mm to 150 mm, preferably 60 mm to 100 mm from the front end of the shaped sheet B. If the predetermined range P is larger than 150 mm, the shaped sheet B may drop by its own weight and may collide inside the equipment during transport. If the predetermined range P is smaller than 50 mm, the fixed sheet B can not be reliably held by the bonding roller 50 described later.

As shown in FIG. 1, the fixed sheet B is sucked from the upper surface by the suction fixing means 402 from the mounting table 201 on which the fixed sheet B is placed and lifted, fixed to the suction fixing means 402 and lifted. It is conveyed toward the bonding part 200 in the state as it is. After the leading end portion P of the fixed sheet B is disposed between the pair of bonding rollers 50, the fixed sheet B is nipped by the pair of bonding rollers 50, and the fixing by the suction fixing means 402 is released (FIG. 5B The fixed sheet B and the adhesive film layer-attached resin film sheet 74 sandwiched from above and below by the pair of attachment rollers 50 are sequentially attached from the front to the rear by the pair of attachment rollers 50 (see FIG. 5C).

The fixed sheet B conveyed to the bonding station 300 by the fixed sheet conveying mechanism 400 is kept fixed by the fixed sheet conveying mechanism 400, and is controlled by the drive control unit 500 to set the predetermined range P of the tip portion. Are disposed between the pair of attachment rollers 50 (see FIG. 5B). The moving direction when the predetermined range P of the leading end portion of the fixed sheet B is disposed between the pair of bonding rollers 50 is not limited. In the present embodiment, the fixed sheet conveying mechanism 400 moves the fixed sheet B from the direction orthogonal to the rotation axis of the pair of bonding rollers 50 so that the predetermined range P is between the pair of bonding rollers 50. It can be arranged.

The fixed sheet B in which the predetermined range P of the leading end portion is disposed between the pair of bonding rollers 50 by the fixed sheet conveying mechanism 400 is controlled by the pair of bonding rollers 50 operated by the control of the drive control unit 500. With the leading end portion of the adhesive film layer-attached resin film sheet 74, it is sandwiched from the upper and lower surfaces (see FIG. 5B). When the fixed sheet B is held, the suction fixing means 402 releases the suction of the fixed sheet B (see FIG. 5B). The fixation release by the suction fixing means 402 may be performed before the fixed sheet B is nipped by the pair of attaching rollers 50. In this case, after the fixation of the fixed sheet B is released, the suction fixing means 402 The fixed sheet B can be supported in a non-fixed state until it is nipped by the pair of attachment rollers 50. The timing at which the fixing by the suction fixing means 402 is released is not particularly limited as long as the posture of the shaped sheet B does not change between the release and the holding by the bonding roller 50.

At the position corresponding to the entire lower surface excluding the predetermined range P of the leading end portion of the fixed sheet B in which the predetermined range P is disposed between the pair of bonding rollers 50, the fixing release support means 410 is arranged. At the time of releasing the fixing, the supporting means 410 supports from below the fixed sheet B which is held by the pair of attaching rollers 50 and the suction fixing means 402 is separated.

In the case of providing the support means 410 at the time of releasing the fixing, since the fixed sheet B can be supported by the lower rollers of the pair of attaching rollers 50 and the support means at the time of releasing the fixing, the suction fixing means 402 is It is also possible to separate from the fixed sheet B before the fixed sheet B is nipped by the bonding roller 50. After the fixed sheet B is released from being fixed by the suction fixing means 402, the suction fixing means 402 holds the fixed sheet B in a fixed state without fixing until the sheet is held between the pair of attaching rollers 50. Fixing means 402 functions as support means 410 at the time of releasing the lock.

At the time of unlocking, the support means 410 can be arranged in a pre-fixed position, or appears below the shaped sheet B only when it is necessary to support the shaped sheet B and needs to be supported It can also be configured to retract to any position when not present.

The fixed sheet B is transferred to the bonding station 300 by the fixed sheet cell mother boat transfer mechanism 400, and is bonded to the adhesive film-attached resin film sheet 74 peeled off from the carrier film 72 by the peeling member 60. (See FIG. 5C). For sticking, the adhesive film layer-attached resin film 74 is sandwiched from above and below by a pair of affixing rollers 50 in a state where the tip of the adhesive material layer-attached resin film 74 is overlapped at a predetermined position of the front portion of the fixed sheet B. The respective rotations are performed in the reverse direction to sequentially perform from the front to the back of the fixed sheet B, and the fixed sheet stack BL obtained as a result of the attachment is a mounting table in which the adjacent attachment roller 50 is in proximity. Slipped to 202. After pasting, the formed sheet laminate BL placed on the mounting table 202 is transported away from the affixing station 300 by the same transport mechanism as the formed sheet transport mechanism 400.

The resin film laminate roll 70 is obtained by winding a long resin film laminate 71 in a roll shape. The resin film laminate 71 is composed of a resin film of a predetermined width direction dimension laminated on the carrier film 72 via an adhesive layer. The carrier film 72 is bonded to the outside of the resin film via an adhesive layer. The resin film laminate 71 is fed from the resin film laminate roll 72 at a constant speed by the pair of drive rolls 23. In the present embodiment, the resin film is a back surface protection film to be a bottom surface attachment film. The lower surface attachment film is not limited to this, and any appropriate film such as a composite film configured as a laminate comprising a layer of a light shielding film and a layer of a film having impact resistance and heat dissipation. It can be done. The resin film 71 is in the form of an elongated continuous web, but its width is a dimension corresponding to the width W in the width direction of the sheet B.

Further, referring to FIG. 1, the resin film laminate 71 drawn from the resin film laminate roll 70 by the pair of drive rollers 23 is a guide roll 24, a dancer roll 25 movable in the vertical direction, a guide roll 26 and a guide roll 27. , And is sent to the incision forming mechanism 900. The cut formation mechanism 900 is composed of a cutting blade 901 and a pair of drive rolls 29 for feeding disposed via a guide roll 28. The cut forming mechanism 900 stops the drive roll 29 at the cut forming position and operates the cutting blade 901 in a state in which the feeding of the resin film laminate 71 is stopped, leaving the carrier film 72 and the resin with the adhesive layer A slit is formed only in the film 73 in the width direction. The distance between the cuts is a distance corresponding to the longitudinal length L of the motherboard B. Therefore, the adhesive-layer-attached resin film 73 is cut in the width direction by cutting into the adhesive-attached resin film sheet 74 having the width W in the lateral direction and the longitudinal method length L of the mother board B. Thus, on the carrier film 72, a plurality of resin film sheets 74 with an adhesive layer are continuously formed, and the resin film sheets 74 with an adhesive layer are supported by the carrier film 72 and attached. Sent to the location.

The dancer roll 25 is biased downward, and a pair of drive rolls 23 which continuously drive the resin film stack 71 in the feed direction and the feed of the resin film stack 71 at the time of cutting are stopped, and after the cutting is completed It is an adjusting roll which acts to adjust the film feed between a pair of driving rolls 29 which drive a predetermined distance. That is, during the stop period of the drive roll 29, the dancer roll 25 moves downward to absorb the feed of the drive roll 23 by the biasing force, and when the operation of the drive roll 29 is started, the drive roll By the tensile force applied to the resin film laminate 71 by 29, it moves upward against the biasing force.

A series of resin film sheets 74 with an adhesive layer formed by cutting are supported by the carrier film 72, and the dancer roll 30, the guide roll 31, the guide roll 32, and the pair of drives similar to the dancer roll 25 are driven. The roller passes through the infeed roller 33, the guide roll 34, and the dancer roll 35 having the same configuration as the dancer roll 25 and is guided by the guide rolls 36, 37, 38, 39 and fed to the sticking position of the sticking station 300. Be

In the present embodiment, the bonding station 300 includes the bonding roller 50, the carrier film peeling mechanism 60, the fixing release support means 410, and the mounting table 202. At the affixing position of the affixing station 300, an affixing roller 50 and a carrier film peeling mechanism 60 are provided. The bonding roller 50 is disposed movably between the upper pulling position and the lower pressing position, and the adhesive material at the top of the continuous adhesive material layer-attached resin film sheet 74 supported by the carrier film 72. When the front end of the layered resin film sheet 74 is aligned with the front end of the display cell 1 to be attached, they are sandwiched to form the adhesive material layer-attached resin film sheet 74 into the shaped sheet B. Press and paste.

The carrier film peeling mechanism 60 is provided with a peeling member 61 which acts so as to bend the carrier film 72 to an acute angle at the bonding position and peel the adhesive film layer-attached resin film sheet 74 from the carrier film 72 at the top. A carrier film take-up roll 40 is disposed to take up the carrier film 72 folded back at an acute angle. The carrier film 72 peeled off from the adhesive film layer-attached resin film sheet 74 is sent to the take-up roll 40 via the guide roll 41 and the out feed roller 42 which is a pair of drive rolls, and is taken up on the take-up roll 40. Be

Next, details of the paste processing in the present embodiment will be described. In the present embodiment, the carrier film winding mechanism includes the carrier film winding roll 40, the guide roll 41, and the out feed roller. In the carrier film winding mechanism, the outfeed roller 42 may be omitted. The rotation of the carrier film take-up roll 40 and the outfeed roller 42 is controlled by the drive control unit 500, but the rotational speed of the outfeed roller 42 is wound in the process of attaching the resin film sheet 74 with adhesive material layer. It corresponds to the taking speed V1. In the present embodiment, the affixing mechanism is configured by the affixing roller 50 which is a pair of driving rollers. The rotation of the affixing roller 50 is driven and controlled by the drive control unit 500, but the rotational speed of the affixing roller 50 corresponds to the affixing speed V2 in the affixing process of the adhesive-layer-attached resin film sheet 74. . FIG. 6 is a view showing a speed relationship between the winding speed V1 and the bonding speed V2 in the entire period of the bonding process in the present embodiment.

First, preparation for paste processing is performed. By the carrier film 72 being wound up by the out feed roller 42, the front end of the adhesive film layer-attached resin film sheet 74 starts to peel from the carrier film 72, and the adhesive layer-attached resin film sheet 74 is sent to the affixing position See FIG. 5A). At this time, the adhesive film layer-attached resin film sheet 74 is sent to the affixing position by the in-feed roller 33. The adhesive film layer-attached resin film sheet 74 reaches the bonding position, and the feeding is temporarily stopped. At this time, the outfeed roller 42 also stops. Subsequently, as described above, the fixed sheet B in which the predetermined range P of the tip portion is disposed between the pair of bonding rollers 50 by the fixed sheet conveying mechanism 400 operates under the control of the drive control unit 500. It is pinched from the upper and lower surfaces together with the leading end portion of the adhesive film layer-attached resin film sheet 74 by the pair of bonding rollers 50 (see FIG. 5B). When the fixed sheet B is held, the suction fixing means 402 cancels the suction of the fixed sheet B.

The outfeed roller 42 is rotated at the paste start time point Ts, the winding speed of the carrier film 72 is accelerated by the acceleration a1, and the carrier film 72 is peeled off, and at the same time, the paste roller 50 is rotated to accelerate the paste speed V2. The sheet is accelerated by a2 (a1> a2), and conveyed while sandwiching the adhesive film layer-attached resin film sheet 74 and the fixed sheet B between the bonding rollers 50, and the adhesive layer attached resin film sheet 74 is formed into the fixed sheet B. paste.

Next, at time T1, the acceleration of the outfeed roller 42 is stopped and made constant speed, then, at the time T2 when the sticking roller 50 reaches the speed of the outfeed roller 42, the acceleration of the sticking roller 50 is also stopped and made constant. Until the time point T3, the winding speed V1 and the sticking speed V2 are synchronized (matched) (V1 = V2).

At time T3, the outfeed roller 42 and the affixing roller are decelerated at the same acceleration a3, and peeling of the adhesive-layer-attached resin film sheet 74 from the carrier film 72 and the adhesive-layer-attached resin film sheet 74 to the cell mother boat B Complete the paste of At the completion time of the pasting, the outfeed roller 42 and the pasting roller 50 are stopped (V1 = V2 = 0). Then, it shifts to the next paste preparation.

In this embodiment, the moving amount of the carrier film 72 by the winding of the out feed roller 42 and the moving amount of the adhesive film layer-attached resin film sheet 74 by the affixing roller 50 are from the application start time Ts to the time T1. Only different. If the difference in the amount of movement from the attachment start time point Ts to the time point T1 is too large, the deflection of the adhesive film layer-attached resin film sheet 74 becomes large, and so on to the shaped sheet laminate BL obtained as a result of adhesion. Air bubbles are generated. Therefore, in the present embodiment, for the time from the acceleration a1, a2 and the adhesion start time Ts to the time T1, a value is set such that no bubble is generated in the shaped sheet laminate body BL.

According to the present embodiment, in the RTP system in which the resin film is attached to the flexible shaped sheet, both the generation of the warp of the shaped sheet laminate obtained as a result of the attachment and the suppression of the bubble generation are achieved. it can.

Second Embodiment
FIG. 7A is a view showing a speed relationship between the winding speed V1 and the bonding speed V2 in the entire period of the bonding process in the present embodiment. The present embodiment differs from the first embodiment in the method of controlling the relationship between the winding speed V1 and the bonding speed V2 in the bonding process. The description overlapping with the first embodiment is omitted.

The outfeed roller 42 and the affixing roller 50 are rotated at the same acceleration a4 at the start time of the affixing, and the adhesive material layer-attached resin film sheet 74 and the cell mother board B are nipped between these rollers and conveyed. The resin film sheet 74 is attached to the surface of the mother board B and the carrier film 72 is peeled off.

Next, at time T4, the acceleration of the sticking roller 50 is stopped to make the speed constant, and at time T5 thereafter, the acceleration of the outfeed roller 42 is stopped to make the speed. As a result, after time T4, the take-up speed V1 of the outfeed roller 42 becomes larger than the sticking speed V2 of the sticking roller 50. Here, since the resin film is bent or vibrates if the winding speed V1 is greater than the sticking speed, the winding speed V1 and the sticking speed V2 are formed sheet laminates obtained as a result of the sticking. A value is set such that air bubbles are not generated in the solid sheet.

At time T6, the take-up speed V1 of the outfeed roller 42 is reduced by the acceleration a5, and the speed is reduced to the same speed as the affixing speed V2 of the affixing roller 50. At time T7, the affixing speed V2 of the affixing roller 50 is the same. Deceleration is performed at an acceleration a5 to complete peeling of the adhesive-layer-attached resin film sheet 74 from the carrier film 72 and attachment of the adhesive-layer-attached resin film sheet 74 to the cell mother boat B. At the completion time of the pasting, the outfeed roller 42 and the pasting roller 50 are stopped (V1 = V2 = 0). Then, it shifts to the next paste preparation.

In the present embodiment, the moving amount of the carrier film 72 due to the winding of the outfeed roller 42 and the moving amount of the adhesive film layer-attached resin film sheet 74 by the affixing roller 50 differ only from time point T4 to time point T7. If the difference in the amount of movement from this time point T4 to the time point T7 is too large, the deflection of the adhesive film layer-attached resin film sheet 74 becomes large, etc., and a shaped sheet body shaped sheet body laminate BL obtained as a result of affixing Air bubbles are generated. Therefore, in the present embodiment, for the time from time point T4 to time point T7, a value is set such that no air bubble is generated in the fixed sheet body shaped sheet laminate body BL. In addition, since the moving amount of the carrier film 72 due to the take-up of the out feed roller 42 and the moving amount of the adhesive film layer-attached resin film sheet 74 by the attaching roller 50 are the same from the attachment start time Ts to the time T4 If the time from the start of application to time T4 or the time from the start of application to time T7 is too large, it is not possible to cause the adhesive-layer-attached resin film sheet 74 to bend for reduction in tension, The time of is set to an appropriate value capable of suppressing the occurrence of the warpage of the shaped sheet laminate and the bubble generation.

In the above embodiment, the difference between the winding speed V1 and the sticking speed V2 is constant from the time point T5 to the time point T6. However, the present invention is not limited to this. For example, as shown in FIG. 7B The pattern of the velocity difference may be any appropriate pattern such that bubble generation does not occur, such as a pattern in which the velocity difference gradually decreases.

According to the present embodiment, in the RTP system in which the resin film is attached to the flexible shaped sheet, both the generation of the warp of the shaped sheet laminate obtained as a result of the attachment and the suppression of the bubble generation are achieved. it can.

Third Embodiment
FIG. 8 is a view showing the relationship between the winding speed V1 and the bonding speed V2 in the entire period of the bonding process in the present embodiment. The present embodiment differs from the first embodiment in the method of controlling the relationship between the winding speed V1 and the bonding speed V2 in the bonding process. The description overlapping with the first embodiment is omitted.

Before the sticking roller 50 is rotated at the winding start time T8, the out feed roller 42 is rotated, the winding speed V1 is accelerated by the acceleration a6, and the carrier film 72 is peeled from the resin film laminate 71.

Thereafter, the sticking roller 50 is rotated at the sticking start time point Ts, and accelerated by the same acceleration a6, and conveyed while sandwiching the adhesive film layer-attached resin film sheet 74 and the cell mother board B between these rollers The resin film sheet 74 is attached to the surface of the mother board B. Here, if the timing to rotate the bonding roller is too late, the resin film will bend or vibrate etc. Therefore, the difference between the winding start time T8 and the bonding start time Ts and the acceleration a6 are the result of bonding. A value is set such that no bubbles are generated in the shaped sheet B to which the obtained back surface protective film 90 is attached.

Then, at time T9, the acceleration of the outfeed roller 42 is stopped and made constant speed, then, at the time T10 when the sticking roller 50 reaches the speed of the outfeed roller 42, the acceleration of the sticking roller 50 is also stopped and made constant. Until the time T11, the winding speed V1 and the sticking speed V2 are synchronized (matched) (V1 = V2).

At time T11, the outfeed roller 42 and the affixing roller 50 are decelerated at the same acceleration a7 to separate the adhesive-layer-attached resin film sheet 74 from the carrier film 72 and the adhesive-layer-attached resin film sheet 74. Complete the paste to At the completion time of the pasting, the outfeed roller 42 and the pasting roller 50 are stopped (V1 = V2 = 0). Then, it shifts to the next paste preparation.

In the present embodiment, the moving amount of the carrier film 72 due to the winding of the out feed roller 42 and the moving amount of the adhesive film layer-attached resin film sheet 74 by the affixing roller 50 differ only from time T8 to time T10. If the difference in the amount of movement from the sticking start time T8 to the time T10 is too large, the deflection of the adhesive film layer-attached resin film sheet 74 becomes large, and so on to the shaped sheet laminate BL obtained as a result of bonding. Air bubbles are generated. Therefore, in the present embodiment, for the time from the acceleration a6 or the time T8 to the time T10, a value is set such that no bubbles are generated in the shaped sheet laminate BL.

According to the present embodiment, in the RTP system in which the resin film is attached to the flexible shaped sheet, both the generation of the warp of the shaped sheet laminate obtained as a result of the attachment and the suppression of the bubble generation are achieved. it can.

By combining the control of the winding speed and the sticking speed of part or all of the first to third embodiments, etc., the paste processing is started from the start so that no bubbles are generated in the shaped sheet laminate. The winding speed is higher than the sticking speed, and (2) the winding speed exceeds the sticking speed for a predetermined time from the start of the sticking process, at least in part during the completion of the sticking. Thus, the outfeed roller 42 and the sticking roller 50 may be driven and controlled.

In the above embodiment, when the take-up speed V1 and the sticking speed V2 are synchronized, when the rotations of the in-feed roller 33 and the out-feed roller 42 are synchronized, an extra tension is generated in the adhesive material layer-attached resin film sheet 74. Can be suppressed.

<Example>
Example 1-1
Affixing was performed with the resin film affixing system of the first embodiment. A polyethylene terephthalate (hereinafter, also referred to as "PET") film (75 μm in thickness) was used as a back surface protective film, and a PET film (25 μm in thickness) was used as a carrier film. An acrylic pressure-sensitive adhesive was used as the pressure-sensitive adhesive. An adhesive having a thickness of 25 μm was coated on the back surface protective film and attached to a carrier film to prepare a resin film laminate. The flexural rigidity per unit length of this back protective film was 0.18 N · mm ² . Moreover, the peeling force of an adhesive and a carrier film was 0.09 N / 50 m width sample).

In addition, as the cell mother board B, in place of the cell mother board B, a rectangular PET film having a thickness of 250 μm and a size of 500 × 870 mm was used. The initial curling amount of the PET film was 5.0 mm, and the bending rigidity per unit length was 6.51 N · mm ² .

The time from the paste start time point Ts to the time point T1, and the time from the paste start time point Ts to the time point T2 are 900 ms and 1000 ms, respectively. Acceleration a1 of the take-up speed V1 from Paste beginning Ts to the time T1, the acceleration a2 of the pasting speed V2, respectively, and a ^{667mm / s 2, 600mm / s} 2. Further, the winding speed V1 at time T1 to T3 and the sticking speed V2 at time T2 to T3 are set to 100 mm / s. The time from time T2 to time T3, and the time from time T3 to time Te were 4.733 s and 0.167 s, respectively. The take-up speed V1 from time T3 to time Te and the decelerating acceleration of the sticking speed were 600 mm / s ² . Moreover, the sticking pressure was 0.35 MPa. The curling amount of the obtained shaped sheet laminate (PET film with a back surface protective film attached) is shown in Table 1 and FIG.

(Example 1-2)
800ms time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 750 mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Example 1-3)
700ms time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 857mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-1)
1000ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 600 mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-2)
1100ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 545 mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-3)
1200ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 500 mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-4)
The same conditions as in Example 1-1 except that the time a1 from the paste start time point Ts to the time point T1 is 1300 ms and the acceleration a1 of the winding speed V1 from the paste start time point Ts to the time point T1 is 462 mm / s ² Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-5)
1400ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 429mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-6)
1500ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 400 mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-7)
1600ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 375 mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-8)
1700ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 353 mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-9)
1800ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 333mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-10)
1900ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 316 mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 1 and FIG.

(Comparative Example 1-11)
600ms time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 1000 mm / s ^2, the same conditions as in Example 1-1 Then, the back protective film was attached to the PET film. A large number of air bubbles were generated in the obtained shaped sheet laminate.

(Example 2-1)
Affixing was performed by the resin film affixing system of the second embodiment. The back protective film, the carrier film, the adhesive, and the PET film used instead of the cell mother board B were the same as in Example 1-1.

The time from the paste start time point Ts to the time point T4 is 1000 ms. Acceleration a4 Paste speed from the Paste start time Ts to the time T4 V2, the acceleration a4 of the take-up speed V1 from the Paste start time Ts to the time T5 was 600m / s ^2. Further, the sticking speed V2 at time T4 to T7 and the winding speed V1 at time T5 to T6 were 100 mm / s and 101.9 mm / s, respectively. The time from time T4 to time T7 and the time from time T7 to time Te were 4.733 s and 0.167 s, respectively. The decelerating acceleration a5 of the winding speed V1 from the time T6 to the time Te and the decelerating acceleration a5 of the affixing speed from the time T7 to the time Te were 600 mm / s ² . Moreover, the sticking pressure was 0.35 MPa. The curling amount of the obtained shaped sheet laminate is shown in Table 2 and FIG.

(Example 2-2)
Under the same conditions as in Example 2-1, except that the winding speed V1 at time T5 to T6 was 104.0 mm / s, the back protective film was attached to the PET film, and the shaped sheet body laminate obtained was obtained. The amount of curling of the body was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 2 and FIG.

(Example 2-3)
The back protective film was attached to the PET film under the same conditions as in Example 2-1 except that the winding speed V1 at time T5 to T6 was 104.8 mm / s, and the obtained shaped sheet laminate was obtained. The amount of curling of the body was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 2 and FIG.

(Comparative example 2-1)
The back protective film was attached to the PET film under the same conditions as in Example 2-1 except that the winding speed V1 at time T5 to T6 was set to 100 mm / s, and the obtained shaped sheet laminate was obtained The amount of curl was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 2 and FIG.

(Comparative Example 2-2)
Under the same conditions as in Example 2-1 except that the winding speed V1 at time T5 to T6 was set to 98.5 mm / s, the back protective film was attached to the PET film, and the shaped sheet body laminate obtained was obtained The amount of curling of the body was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 2 and FIG.

(Comparative Example 2-3)
Under the same conditions as in Example 2-1, except that the winding speed V1 at time T5 to T6 was 97.1 mm / s, the back protective film was attached to the PET film, and the shaped sheet body laminate obtained was obtained The amount of curling of the body was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 2 and FIG.

(Comparative Example 2-4)
Under the same conditions as in Example 2-1, except that the winding speed V1 at time T5 to T6 was 95.7 mm / s, the back protective film was attached to the PET film, and the shaped sheet body laminate obtained was obtained. The amount of curling of the body was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 2 and FIG.

(Comparative Example 2-5)
The back protective film was attached to the PET film under the same conditions as in Example 2-1 except that the winding speed V1 at time T5 to T6 was 105.0 mm / s. A large number of air bubbles were generated in the obtained shaped sheet laminate.

Example 3-1
Affixing was performed by the resin film affixing system of the third embodiment. The back protective film, the carrier film, the adhesive, and the PET film used instead of the cell mother board B were the same as in Example 1-1.

The take-up start time T8 is set to be 0.01 s later than the paste start time Ts. The time from the winding start time T8 to the time T9 and the time from the paste start time Ts to the time T10 are set to 1000 ms. Acceleration a6 of the take-up speed V1 from the winding start time T8 to time T9, the acceleration a6 paste speed V2 from Paste beginning Ts to time T10 was m / s ^2. The time from time T10 to time T11 and the time from time T11 to time Te were 4.733 s and 0.167 s, respectively. The winding speed V1 from time T11 to time Te and the decelerating acceleration a7 of the sticking speed were 600 mm / s ² . Moreover, the sticking pressure was 0.35 MPa. The curling amount of the obtained shaped sheet laminate is shown in Table 3 and FIG.

Example 3-2
The back protective film is attached to the PET film under the same conditions as in Example 3-1 except that the winding start time point T8 is 0.02 seconds ahead of the attachment start time point Ts, The curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 3 and FIG.

(Comparative Example 3-1)
Under the same conditions as in Example 3-1 except that the winding start time point T8 was simultaneous with the bonding start time point Ts, the back surface protective film was attached to the PET film, and the obtained shaped sheet was obtained. The curl amount of the body laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 3 and FIG.

(Comparative Example 3-2)
Implementation except that the winding start time point T8 is 0.01 s later than the sticking start time point Ts (the winding start time point T8 is -0.01 s ahead of the sticking start time point Ts) The back protective film was attached to the PET film under the same conditions as in Example 3-1, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 3 and FIG.

(Comparative Example 3-3)
The back protective film is attached to the PET film under the same conditions as in Example 3-1 except that the winding start point T8 is set to be 0.02s later than the attachment start point Ts, The curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 3 and FIG.

(Comparative Example 3-4)
The back protective film is attached to the PET film under the same conditions as in Example 3-1 except that the winding start time point T8 is set to be 0.03s later than the attachment start time point Ts, The curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 3 and FIG.

(Comparative Example 3-5)
The back protective film is attached to the PET film under the same conditions as in Example 3-1 except that the winding start time point T8 is set to be 0.04s after the attachment start time point Ts. The curling amount of the obtained shaped sheet laminate was measured. The curling amount of the obtained shaped sheet laminate is shown in Table 3 and FIG.

(Comparative Example 3-6)
The back protective film was attached to the PET film under the same conditions as in Example 3-1 except that the winding start time point T8 was set to be 0.05s ahead of the attachment start time point Ts. . A large number of air bubbles were generated in the obtained shaped sheet laminate.

Example 4-1
Mainly, the thickness of the PET film as the back surface protective film was larger than that of Example 1-1, and the thickness of the PET film instead of the cell mother board B was smaller than that of Example 1-1 (a resin film laminate The back sheet was attached to a PET film under the same conditions as in Example 1-1, except that warpage was considered to be more likely to occur than in Example 1-1, and a shaped sheet obtained. The curl amount of the body laminate was measured. Specific differences between the present embodiment and the embodiment 1-1 are as follows. The thickness and the bending rigidity per unit length of the PET film as the back surface protective film were 75 μm and 0.18 N · mm ² in Example 1-1, but in the present example, 125 μm and 0.83 N -It was mm ² . In addition, the thickness of the PET film instead of the cell mother board B, the initial curling amount, and the bending rigidity per unit length are 250 μm, 5.0 mm, and 6.51 N · mm ^{2 in} Example 1-1. However, in this example, they were 188 μm, 0.0 mm, and 2.84 N · mm ² . Further, the peeling force between the adhesive and the carrier film was a 0.09 N / 50 m wide sample in Example 1-1, but was a 0.10 N / 50 m wide sample in this example. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

(Example 4-2)
800ms time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 750 mm / s ^2, the same conditions as in Example 4-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

Example 4-3
The same conditions as in Example 4-1 except that the time from the paste start time point Ts to the time point T1 is 700 ms and the acceleration a1 of the winding speed V1 from the paste start time point Ts to the time point T1 is 857 mm / s ² Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

(Comparative Example 4-1)
1000ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 600 mm / s ^2, the same conditions as in Example 4-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

(Comparative Example 4-2)
1100ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 545 mm / s ^2, the same conditions as in Example 4-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

(Comparative Example 4-3)
1200ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 500 mm / s ^2, the same conditions as in Example 4-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

(Comparative Example 4-4)
The same conditions as in Example 1-1 except that the time a1 from the paste start time point Ts to the time point T1 is 1300 ms and the acceleration a1 of the winding speed V1 from the paste start time point Ts to the time point T1 is 462 mm / s ² Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

(Comparative Example 4-5)
The same conditions as in Example 4-1 except that the time a1 from the paste start time Ts to the time T1 is 1400 ms and the acceleration a1 of the winding speed V1 from the paste start time Ts to the time T1 is 429 mm / s ² Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

(Comparative Example 4-6)
The same conditions as in Example 4-1 except that the time from the paste start time point Ts to the time point T1 is 1500 ms and the acceleration a1 of the winding speed V1 from the paste start time point Ts to the time point T1 is 400 mm / s ² Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

(Comparative Example 4-7)
1600ms The time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 375 mm / s ^2, the same conditions as in Example 1-1 Then, the back surface protective film was attached to the PET film, and the curling amount of the obtained shaped sheet laminate was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 4 and FIG.

(Comparative Example 4-8)
600ms time from Paste beginning Ts to time T1, except that the acceleration a1 of the winding speed V1 from Paste beginning Ts to the time T1 was 1000 mm / s ^2, the same conditions as in Example 4-1 Then, the back protective film was attached to the PET film. A large number of air bubbles were generated in the obtained shaped sheet laminate.

(Example 5-1)
Affixing was performed by the resin film affixing system of the second embodiment. The back protective film, the carrier film, the adhesive, and the PET film used instead of the cell mother board B were the same as in Example 4-1.

Also, the time from the paste start time point Ts to the time point T4, the acceleration a4 of the paste speed V2 from the paste start time point Ts to the time point T4, the acceleration a4 of the winding speed V1 from the paste start time point Ts to the time point T5, Sticking speed V2 at time T4 to T7, winding speed V1 at time T5 to T6, time from time T4 to time T7, time from time T7 to time Te, winding speed between time T6 to time Te The decelerating acceleration a5 of V1, the decelerating acceleration a5 of the affixing speed from time T7 to the time Te, and the affixing pressure were the same as in Example 2-1. The curling amount of the resulting shaped sheet laminate is shown in Table 5 and FIG.

(Example 5-2)
Under the same conditions as in Example 2-1, except that the winding speed V1 at time T5 to T6 was 104.0 mm / s, the back protective film was attached to the PET film, and the shaped sheet body laminate obtained was obtained. The amount of curling of the body was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 5 and FIG.

Example 5-3
The back protective film was attached to the PET film under the same conditions as in Example 2-1 except that the winding speed V1 at time T5 to T6 was 104.8 mm / s, and the obtained shaped sheet laminate was obtained. The amount of curling of the body was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 5 and FIG.

(Comparative Example 5-1)
The back protective film was attached to the PET film under the same conditions as in Example 2-1 except that the winding speed V1 at time T5 to T6 was set to 100 mm / s, and the obtained shaped sheet laminate was obtained The amount of curl was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 5 and FIG.

(Comparative Example 5-2)
Under the same conditions as in Example 2-1 except that the winding speed V1 at time T5 to T6 was set to 98.5 mm / s, the back protective film was attached to the PET film, and the shaped sheet body laminate obtained was obtained The amount of curling of the body was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 5 and FIG.

(Comparative Example 5-3)
Under the same conditions as in Example 2-1, except that the winding speed V1 at time T5 to T6 was 97.1 mm / s, the back protective film was attached to the PET film, and the shaped sheet body laminate obtained was obtained The amount of curling of the body was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 5 and FIG.

(Comparative Example 5-4)
Under the same conditions as in Example 2-1, except that the winding speed V1 at time T5 to T6 was 95.7 mm / s, the back protective film was attached to the PET film, and the shaped sheet body laminate obtained was obtained. The amount of curling of the body was measured. The curling amount of the resulting shaped sheet laminate is shown in Table 5 and FIG.

(Comparative Example 5-5)
The back protective film was attached to the PET film under the same conditions as in Example 2-1 except that the winding speed V1 at time T5 to T6 was 105.0 mm / s. A large number of air bubbles were generated in the obtained shaped sheet laminate.

[Measurement of bending stiffness]
The back surface protective film is cut into a strip having a width of 15 mm and a length of 150 mm, and the strip-like sample is made lengthwise under the following conditions in a universal tensile compression tester (Tensileon) under a temperature environment of 25 ° C. The tensile modulus of elasticity was determined from the obtained S-S (Stress-Strain) curve measured by pulling. As the measurement conditions, the tensile speed is 200 mm / min, the distance between chucks is 50 mm, and the measurement temperature is normal temperature. In the method of obtaining the elastic modulus from the SS curve, the slope of the initial rising portion of the SS curve is obtained by the least squares method, and the value is used as the elastic modulus. The modulus of elasticity was obtained by dividing the modulus of elasticity by the cross-sectional area of the sample piece (thickness × sample width (15 mm)). The flexural rigidity E × I per unit length was determined using the obtained elastic modulus. Here, the elastic modulus of E is the film [N / mm ^2], I is the second moment per unit length, the second moment is ^{I = b × h 3/12} ( where, b: unit length (1 mm), h: film thickness [mm]).

[Measurement of peeling force]
The resin film laminate was cut into a width of 25 mm and a length of 150 mm, and used as a sample for evaluation. Using an all-purpose tensile tester (product name: TCM-1kNB, manufactured by Minebea Co., Ltd.) under an atmosphere of temperature 23 ° C. and humidity 50% RH, peel at a peel angle of 180 ° and a tensile speed of 300 mm / min. It was measured.

[Measurement of curl amount]
The curling amount of the obtained shaped sheet laminate was measured as follows. Place the obtained sheet stack on the flat sheet in a state of being convex downward at a temperature of 23 ± 2 ° C. and a humidity of 55 ± 10%, The height of floating from the surface was measured with a metal scale, and the average value was taken as the amount of curling.

[Air bubbles generated]
The presence or absence of air bubbles in the obtained shaped sheet laminate was evaluated by visual inspection.

[Evaluation]
Tables 1 to 5 and FIGS. 9 to 13 show the following. In Comparative Examples 1-1 to 1-10 and 4-1 to 4-7 in which the winding acceleration was less than or equal to the sticking acceleration in the initial stage of sticking, the curl amount showed a large value, and the obtained sheet body was laminated In Examples 1-1 to 1-3 and 4-1 to 4-3, in which the winding acceleration was larger than the sticking acceleration in the initial stage of sticking while the warp was generated in the body, the curling amount was Indicates a value close to the initial curling amount, and the warpage of the obtained shaped sheet laminate is favorably reduced. In addition, in Comparative Examples 1-11 and 4-8 in which the winding acceleration was 400 mm / s ² or more larger than the sticking acceleration in the initial stage of sticking, generation of a large number of air bubbles was observed. There were no air bubbles in 1-3 and 4-1 to 4-3.

In Comparative Examples 2-1 to 2-4 and 5-1 to 5-4 in which the winding speed was less than or equal to the sticking speed in the middle stage of sticking (the speed is regular), the curling amount showed a large value and was obtained. While warpage is generated in the formed sheet laminate, while the winding speed is larger than the bonding speed in the middle stage of bonding, Examples 2-1 to 2-3, and 5-1 to 5- In the case of No. 3, the curling amount shows a value close to the initial curling amount, and the warpage of the obtained shaped sheet laminate is favorably reduced. In addition, in Comparative Examples 2-5 and 5-5 in which the winding speed was 5.0 mm / s or more larger than the sticking speed in the middle of the potting, generation of a large number of air bubbles was observed, but Example 2-1 There were no bubbles in ~ 2-3.

In Comparative Examples 3-1 to 3-5, in which the winding process was started after the bonding process, the curling amount showed a large value, and the warpage occurred in the obtained shaped sheet laminate. In Examples 3-1 to 3-2 in which the winding process was started prior to the attaching process, the curling amount showed a value close to the initial curling amount, and the obtained sheet laminate of the shaped sheet was obtained. Warpage was well reduced. Further, in Comparative Example 3-6 in which the winding process was started 0.05 seconds or more earlier than the bonding process, the generation of a large number of air bubbles was observed, but Examples 1-1 to 1-3, 2- There were no bubbles in any of 1 to 2-3, 3-1 to 3-2, 4-1 to 4-3, and 5-1 to 5-3.

From the above, in Example 1-1 to 1-3, 2-1 to 2-3, 3-1 to 3-2, 4-1 to 4-3, 5-1 to 5-3, the stack of the shaped sheet body It was found that both the occurrence of body warpage and the suppression of the occurrence of air bubbles were realized.

While the invention has been described with reference to several embodiments for the purpose of illustration, the invention is not limited thereto, but as to the form and details, without departing from the scope and spirit of the invention. It will be apparent to those skilled in the art that various changes and modifications can be made.

W Width in the horizontal direction L Length in the vertical direction B Fixed sheet body BL Fixed sheet body laminate 1 Optical display cell 1a Short side 1b Long side 1c Terminal part 1d Display part 3 Glass substrate 4 Base material 5 Surface protection film 201, 202 Mounting table 300 pasting station 400 cell mother board conveyance mechanism 402 suction fixing means 404 suction part 406 leading edge part 500 drive control part 33 infeed roller 40 carrier film take-up roll 41 guide roll 42 outfeed roller 50 pasting roller 70 resin Film laminate roll 71 Resin film laminate 72 Carrier film 73 Resin film with adhesive layer 74 Resin film sheet with adhesive layer 900 Cut formation mechanism 901 Cutting blade

Claims (22)

A resin film laminate composed of a long strip-like carrier film and a resin film of a predetermined width direction dimension laminated on the carrier film via a pressure-sensitive adhesive layer is used, and is specified together with the pressure-sensitive adhesive layer on the carrier film. A resin film affixing system for affixing a resin film sheet with an adhesive layer containing the resin film cut out in a lengthwise direction dimension at an affixing station from the carrier film and affixing the resin film sheet to a prescribed shaped sheet body And
A resin film laminate supply mechanism for conveying the resin film laminate to the bonding station;
A peeling member provided at the pasting station for peeling off the resin film sheet with an adhesive layer from the resin film laminate sent to the pasting station;
A carrier film take-up mechanism for taking up the carrier film from which the resin film sheet with pressure-sensitive adhesive layer is peeled;
A fixed sheet feeding device for feeding the fixed sheet to the bonding station; The fixed sheet having the adhesive layer-attached resin film sheet peeled off from the carrier film is sent to the bonding station A pasting mechanism provided at the pasting station, for pasting onto the
(1) From the start of the affixing process by the affixing mechanism to the completion of the affixing process so that no bubbles are generated in the shaped sheet laminate obtained by affixing the resin film to the affixing sheet body In at least a part of the interval, the take-up speed by the carrier film take-up mechanism is greater than the affixing speed by the affixing mechanism, and (2) a predetermined time from the start of the affixing process by the affixing mechanism A resin film provided with a drive control unit that drives and controls the carrier film winding mechanism and the bonding mechanism such that a winding speed by the carrier film winding mechanism is equal to or higher than a bonding speed by the bonding mechanism; Paste system. In the drive control unit, the winding speed by the carrier film winding mechanism is higher than the adhesion speed by the adhesion mechanism from the start of the adhesion process until the adhesion speed by the adhesion mechanism reaches a predetermined speed. The resin film bonding system according to claim 1, wherein the carrier film winding mechanism and the bonding mechanism are driven and controlled so that the winding speed and the bonding speed are the same. The drive control unit increases at a predetermined acceleration from the start of the affixing process until the affixing speed by the affixing mechanism reaches the predetermined speed, and the same speed becomes a constant speed, The resin film sticking system according to claim 2 which carries out drive control of said career film winding mechanism and said sticking mechanism. The drive control unit controls the winding speed by the carrier film winding mechanism and the sticking speed by the sticking mechanism during the time from the start of the sticking processing until the sticking speed by the sticking mechanism reaches a predetermined speed. The resin film affixing system according to claim 1, wherein the carrier film take-up mechanism and the affixing mechanism are driven and controlled so as to make the take-up speed greater than the affixing speed. A resin film laminate composed of a long strip-like carrier film and a resin film of a predetermined width direction dimension laminated on the carrier film via a pressure-sensitive adhesive layer is used, and is specified together with the pressure-sensitive adhesive layer on the carrier film. A resin film affixing system for affixing a resin film sheet with an adhesive layer containing the resin film cut out in a lengthwise direction dimension at an affixing station from the carrier film and affixing the resin film sheet to a prescribed shaped sheet body And
A resin film laminate supply mechanism for conveying the resin film laminate to the bonding station;
A peeling member provided at the pasting station for peeling off the resin film sheet with an adhesive layer from the resin film laminate sent to the pasting station;
A carrier film take-up mechanism for taking up the carrier film from which the resin film sheet with pressure-sensitive adhesive layer is peeled;
A fixed sheet feeding device for feeding the fixed sheet to the bonding station; The fixed sheet having the adhesive layer-attached resin film sheet peeled off from the carrier film is sent to the bonding station A pasting mechanism provided at the pasting station, for pasting onto the
Equipped with
(1) The carrier film winding mechanism prior to the affixing process by the affixing mechanism so that air bubbles are not generated in the shaped sheet laminate obtained by affixing the resin film to the affixable sheet body And (2) the carrier film winding mechanism and the pasting mechanism so that the winding speed by the carrier film winding mechanism is equal to or higher than the pasting speed by the pasting mechanism. The resin film sticking system which has a drive control part which drive-controls. The drive control unit starts the winding process by the carrier film winding mechanism prior to the affixing process by the affixing mechanism, and the speed of the affixing process by the affixing mechanism is a predetermined speed. Until reaching, the carrier film winding mechanism winds the carrier film so that the winding speed by the carrier film winding mechanism is larger than the sticking speed by the sticking mechanism, and then the winding speed and the sticking speed become the same. The resin film sticking system according to claim 5, which controls driving of a taking mechanism and the sticking mechanism. The drive control unit increases the take-up speed by the carrier film take-up mechanism at a constant acceleration from the start of the take-up process to the predetermined speed, and the affixing speed by the affixing mechanism The carrier film winding mechanism and the sticking mechanism are drive-controlled so as to increase at the constant acceleration which is the same as the winding speed from the start of the sticking process until the predetermined speed is reached. The resin film sticking system as described in 6. The resin film sticking system according to any one of claims 1 to 7, wherein the carrier film winding mechanism comprises an outfeed roller. The resin film according to any one of claims 1 to 8, wherein the resin film laminate supply mechanism includes an infeed roller, and the drive control unit synchronizes and drives the infeed roller and the outfeed roller. Paste system. The resin film is a protective film, and the shaped sheet body is a cell comprising a resin base and at least one display cell having a display surface with a flexible thin film structure formed on the resin base. The resin film bonding system according to any one of claims 1 to 9, which is a motherboard. The resin film bonding system according to any one of claims 1 to 9, wherein the resin film is a polarizing film, and the shaped sheet body is a retardation film. The resin film affixing system according to any one of claims 1 to 9, wherein the resin film is a polarizing film, and the fixed sheet is a brightness enhancement film. A resin film laminate composed of a long strip-like carrier film and a resin film of a predetermined width direction dimension laminated on the carrier film via a pressure-sensitive adhesive layer is used, and is specified together with the pressure-sensitive adhesive layer on the carrier film. A resin film affixing method for affixing a resin film sheet with an adhesive layer containing the resin film cut out in a lengthwise direction dimension at an affixing station from the carrier film and affixing to a predetermined shape shaped sheet body And
Sending the resin film laminate to the affixing station;
Peeling a resin film sheet with an adhesive layer from the resin film laminate sent to the bonding station;
(1) The resin film sheet with an adhesive layer is attached to the shaped sheet body so that no bubbles are generated in the shaped sheet laminated body shaped sheet body obtained by sticking the resin film to the shaped sheet body. The pressure-sensitive adhesive layer-attached resin film has a take-up speed at which the carrier film from which the resin film sheet with pressure-sensitive adhesive layer is peeled is wound at least in part from the start of the attachment process to attachment to the completion of attachment. The carrier is such that the winding speed is equal to or higher than the sticking speed for a predetermined time from the start of the sticking process, which is larger than the sticking speed of sticking the sheet to the fixed sheet and (2) The pressure-sensitive adhesive layer-attached resin film sheet peeled off from the film is attached to the fixed sheet member sent to the attachment station. And the step that,
How to paste resin film including The winding speed is greater than the bonding speed from the start of the bonding process until the bonding speed reaches a predetermined speed, and thereafter, the winding speed and the bonding speed become the same. The resin film bonding system according to claim 13, wherein the pressure-sensitive adhesive layer-attached resin film sheet peeled off from the carrier film is bonded to the fixed sheet body sent to the bonding station. The adhesive which is peeled off from the carrier film so as to increase at a predetermined acceleration from the start of the affixing process until the affixing speed reaches the predetermined speed, so that the same speed has a constant speed. The resin film sticking system according to claim 14 which sticks a resin film sheet with a layer on said fixed form sheet body sent to said sticking station. The winding speed and the sticking speed are the same from the start of the sticking process until the sticking speed reaches a predetermined speed, and thereafter, the winding speed becomes larger than the sticking speed. The resin film bonding system according to claim 13, wherein the pressure-sensitive adhesive layer-attached resin film sheet peeled off from the carrier film is bonded to the fixed sheet sent to the bonding station. A resin film laminate composed of a long strip-like carrier film and a resin film of a predetermined width direction dimension laminated on the carrier film via a pressure-sensitive adhesive layer is used, and is specified together with the pressure-sensitive adhesive layer on the carrier film. A resin film affixing method for peeling off a resin film sheet with an adhesive layer containing the resin film cut out in the lengthwise direction dimensions from the carrier film at the affixing station and affixing the resin film sheet to a prescribed shaped sheet body There,
Sending the resin film laminate to the affixing station;
Peeling a resin film sheet with an adhesive layer from the resin film laminate sent to the bonding station;
(1) The resin film sheet with an adhesive layer is attached to the shaped sheet body so that no bubbles are generated in the shaped sheet laminated body shaped sheet body obtained by sticking the resin film to the shaped sheet body. Before the attachment process to attach, the winding-up process which rolls up the carrier film from which the said resin film sheet with an adhesive layer was peeled off was started, and (2) the said resin film sheet with an adhesive layer was peeled off The pressure-sensitive adhesive layer-coated resin film sheet peeled off from the carrier film such that the winding-up speed for winding-up the carrier film is equal to or higher than the sticking speed for sticking the pressure-sensitive adhesive layer-attached resin film sheet to the fixed sheet And affixing to the fixed sheet body sent to the pasting station;
How to paste resin film including The winding speed is larger than the sticking speed until the winding processing is started prior to the sticking processing and the speed of the sticking processing reaches a predetermined speed, and then, The pressure-sensitive adhesive layer-attached resin film sheet peeled off from the carrier film is attached to the fixed sheet sent to the attachment station so that the winding speed and the attachment speed are the same. The resin film sticking method as described in 17. The winding speed increases with a constant acceleration from the start of the winding process to the predetermined speed, and the period from the start of the sticking process to the predetermined speed. Affixing the adhesive-layer-attached resin film sheet peeled off from the carrier film to the fixed sheet sent to the affixing station so as to increase at the same constant acceleration as the winding speed The resin film affixing method of Claim 18. The resin film is a protective film, and the shaped sheet body is a cell comprising a resin base and at least one display cell having a display surface with a flexible thin film structure formed on the resin base. The resin film bonding method according to any one of claims 13 to 19, which is a mother board. The resin film affixing method according to any one of claims 13 to 19, wherein the resin film is a polarizing film, and the fixed sheet is a retardation film. The resin film affixing method according to any one of claims 13 to 19, wherein the resin film is a polarizing film, and the fixed sheet is a brightness enhancement film.

Images