WO2019111662A1

WO2019111662A1 - Film member attaching device and film member attaching method

Info

Publication number: WO2019111662A1
Application number: PCT/JP2018/042127
Authority: WO
Inventors: 和彦河東; 健勇屋宜
Original assignee: 株式会社ベアック
Priority date: 2017-12-05
Filing date: 2018-11-14
Publication date: 2019-06-13
Also published as: CN111433145A; JP6967272B2; JP2019099346A; KR20200076733A; CN111433145B

Abstract

A film member attaching device 1 comprising a table 100 on which a member to attach is placed, a film member supply mechanism 200, and a control device 300 that has a film member feed control function and an attachment control function, wherein the film member supply mechanism 200 has a release film advancing mechanism 220 that advances a release film 40 returned by a peeling unit 210, and the release film advancing mechanism 220 has an attaching-peeling synchronization mechanism 221 that peels off the release film 40 by actively synchronizing to the action of attaching a film member (polarization film) 30 when performing an action to attach the film member 30. Damage to the release film can be prevented by reducing the tension applied to the release film when attaching the film member to the member to attach while returning and peeling, with the peeling unit, the release film from the film member to which the release film is separably attached.

Description

Film member attaching apparatus and film member attaching method

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a film member bonding apparatus for bonding a film member to a member to be bonded, and a film member bonding method.

After peeling a release film from a film member to which a release film is peelably attached, various film member affixing devices for affixing the film member from which the release film has been peeled to a member to be attached have been proposed (for example, Patent Document 1).

FIG. 7 is a view showing a main part of the film member affixing apparatus 800 described in Patent Document 1 by taking it out. In addition, although it is set as "a plastic film bonding apparatus" in patent document 1, it demonstrates as a "film member bonding apparatus" in this specification.

As shown in FIG. 7, the film member affixing apparatus 800 described in Patent Document 1 includes a peeling unit 830 for peeling the release film 810 from the film member 820 to which the release film 810 is peelably attached. ing. The peeling unit 830 is provided with a peeling portion 840, and a folded portion 841 is formed at the tip of the peeled portion 840, and the folded portion 841 becomes a corner (wedge shaped corner). ing. Then, after the release film 810 is folded back at the folded portion 841 of the peeling portion 840, the release film 810 is configured to change in the advancing direction by the roll 850 and advance in the arrow x 'direction.

In such a peeling unit 830, when peeling the release film 810 from the film member 820, the peeling unit 830 is in a state where the film member 820 is adsorbed by an adsorption device (not shown) on the upper surface of the peeling unit 830. Slide in the arrow x direction. Thereby, the release film 810 can be peeled off from the film member 820.

On the other hand, the film member 820 adsorbed by the adsorption device is transferred to a predetermined affixing position of the affixing member (not shown) and is affixed to the affixing position.

JP, 2011-251805, A

In the film member bonding apparatus 800 described in Patent Document 1, the release film 810 is peeled off from the film member 820 to which the release film 810 is peelably attached, and the film member 820 from which the release film 810 is peeled off is Although it can be stuck to a to-be-adhered member, the subject which should be improved also in the peeling part 840 for peeling the release film 810 from the film member 820 remains.

That is, in the peeling portion 840 used in the film member affixing apparatus 800 described in Patent Document 1, the folded portion 841 is a corner, and the release film 810 is folded back at the folded portion 841. There is. In such a film member affixing apparatus 800, a tension is applied to the release film along the longitudinal direction of the release film by a tension application unit such as a dancer roll, and the tension is applied. It is a common practice to peel off the film member by advancing the release film in the closed state. For this reason, depending on the material of the release film 810, there is a problem that the release film 810 may be torn or broken due to the rubbing by the folded portion 841, and the release film may be broken. If the release film 810 is broken, it also leads to problems in the advancing operation of the film member and the peeling operation of the release film 40.

Moreover, the same problem arises also in the other film member affixing apparatus which has the peeling part similar to the peeling part 840 used for the film member affixing apparatus 800 described in patent document 1.

FIG. 8 is a figure shown in order to demonstrate an example of the other conventional film member affixing apparatus 900. As shown in FIG. Hereinafter, the film member affixing device 800 (refer to FIG. 7) described in Patent Document 1 is referred to as “the conventional first film member affixing device 800”, and the other film member affixing device 900 shown in FIG. It is referred to as a conventional second film member bonding apparatus 900 ". FIG. 8 schematically and schematically shows the peeling portion used in the conventional second film member bonding apparatus 900. As shown in FIG.

As shown in FIG. 8, also in the conventional second film member bonding apparatus 900, a peeling section 930 is provided for peeling the release film 910 from the film member 920 to which the release film 910 is peelably attached. Also in the peeling portion 930, the folded portion 931 is a corner (wedge shaped corner), and after the release film 910 is folded at the folded portion 931, the release film 910 is advanced in the arrow x direction. Thus, the release film 910 is peeled off from the film member 920 to which the release film 910 is peelably attached.

However, in the conventional second film member bonding apparatus 900, when the release film 910 is peeled off, the film member 920 is not adsorbed by the suction device, but the film member 920 is slightly advanced while the release film 910 is peeled off. And the tip end 920a of the film member 920 (sometimes abbreviated as the tip end 920a) reaches the sticking start end 940a of the affixing member 940, and then the tip end 920a of the film member 920 And the table 960 is moved along the guide rails 970 in the direction of arrow x ′, and the release film folded back at the folding portion 931 is pulled in the direction of arrow x. Thus, the film member 920 is attached to the affixing member 940.

Also in the conventional second film member affixing apparatus 900, as in the conventional first film member affixing apparatus 800, the release film 910 is folded back by the wedge-shaped folded portion 931, and tension is applied to the release film. Since it is applied, depending on the material of the release film 910, there is a problem that the release film 910 may be torn or broken due to the rubbing by the folded portion 841, and the release film may be broken.

In order to solve such a problem, it is also considered to set the folded portion 931 as a rounded portion 931a having a roundness, as shown in a broken line frame C in FIG. However, in the conventional second film member affixing apparatus 900, the relationship between the folded back portion and the affixing start end 940a of the affixing member 940 is important.

The reason is that, in the conventional second film member affixing apparatus 900, the accuracy of the reaching position when the leading end 920a of the film member 920 from which the release film 910 is peeled off by the folded portion 931 reaches the affixing member The reason is that high accuracy is required.

That is, in the conventional second film member affixing apparatus 900, the film member 920 from which the release film 910 is peeled off at the folded portion 931 of the peeling portion 930 proceeds on the extension of the inclined surface 932 of the peeling portion 930. After the leading end 920a of the film member 920 reaches the sticking start end 940a of the affixing member 940, the table 960 is attached to the guide rail 970 in a state where the leading end 920a of the film member 920 is pressed by the pressing roll 950 or the like. This is to move the release film 910 folded back at the folding portion 931 in the direction of the arrow x ′ while moving the release film 910 in the direction of the arrow x ′.

For this reason, if the accuracy of the reaching position when the tip end portion 920a of the film member 920 reaches the affixing member 940 is low, the film member 920 can not be stuck at the correct position of the affixing member 940. Specifically, for example, as shown in a broken line frame C in FIG. 8, when the folded portion 931 is a folded portion 931a having a roundness, the film member 920 from which the release film is peeled off at the folded portion 931a is peeled off. When advancing on the extension of the inclined surface 932 of the portion 930, the distance until the leading end 920a of the film member 920 reaches the sticking start end 940a of the affixing member 940 becomes long and reaches the sticking start end 940a In the meantime, it may be bent by its own weight. Therefore, the leading end 920 a of the film member 920 can not reach the attachment start end 940 a of the affixing member 940 with high accuracy, and the film member 920 can not be accurately attached to the affixing member 940. Such a tendency becomes more pronounced as the radius of the rounding is increased.

Such a problem, that is, the tip end 920a of the film member 920 can not reach the attachment start end 940a of the affixing member 940 with high accuracy, and the film member 920 can not be accurately attached to the affixing member 940 The problem occurs not only in the case where the folded portion 931 is formed as the rounded portion 931a but also in the case where, for example, the folded portion 931 is formed as a roll (not shown).

That is, even in the case where the folded portion 931 is a roll, the film member 920 from which the release film 910 is peeled off extends the inclined surface 932 of the peeled portion 930 as in the case of forming the rounded portion 931a. Of the film member 920 can not reach the attachment start end 940a of the attachment member 940 with high accuracy because the distance until the attachment start end 940a of the attachment member 940 is reached becomes long. Problems will arise. For this reason, it is preferable to form the folded portion as a corner portion (particularly, a wedge shaped corner portion). However, when the folded portion is a wedge shaped corner portion, there arises a problem that the release film is easily broken as described above.

In addition, the problem that the release film is easily broken is not only caused by the folded-back portion of the peeling-off portion being a corner such as a wedge shape, but also long even if the folded-back portion has some roundness. There is a possibility that it may occur due to the use of a term. For this reason, such a problem is commonly present in a film member affixing device which affixes the film member to the affixing member while peeling off the release film by folding back the release film at the folding portion of the peeling portion. .

The present invention has been made in view of the above circumstances, and is added to the release film when the film member is attached to the affixing member while peeling off the release film by folding back the release film at the folded back portion of the peeling portion. An object of the present invention is to provide a film member attaching apparatus and a film member attaching method which can suppress breakage of a release film by reducing tension (tension).

[1] The film member affixing device of the present invention is one in which one surface is an adhesive surface, and the film member is peeled off the release film from the film member on which the release film is peelably attached. After the “film member indexing operation” for causing the leading end of the film member in the traveling direction from which the release film has been peeled to reach the attachment start end of the member to be attached, The film member is attached to the affixing member while peeling off the release film starting from the affixing start end with the forward direction end of the film member pressed against the affixing start end of the affixing member It is a film member affixing device which performs "the affixing operation of a film member", and a tape for mounting the affixing member A film member supply mechanism for supplying the film member, a film member indexing control function for controlling the film member supply mechanism to perform the "film member indexing operation", and A control device having an adhesion control function to move at least one of the film member supply mechanism and the table relatively to perform the adhesion operation of the film member; A release film is folded back in a direction substantially opposite to the traveling direction of the film member, and at least one of the film member supply mechanism and the table is relatively in a state in which the release film is folded at the folded portion. A peeling section for peeling the release film from the film member by moving; And a release film advancing mechanism section for advancing the release film folded back at the folding portion, and the release film advancing mechanism section moves in a direction in which the release film advances with respect to the release film folded back. The release film is disposed between a tension applying unit for applying tension along the length and the tension applying unit and the peeling unit, and the release film is used as the tension applying unit and the tension applying unit. The release film is clamped from the film member in active synchronization with the "pasting operation of the film member" by clamping at a predetermined position between the peeling portion and between the clamped position and the peeling portion. A sticking / peeling synchronization mechanism unit for performing peeling operation is provided. .

As described above, in the present invention, the release film is clamped at a predetermined position between the tension applying portion and the peeling portion in the release film advancing mechanism portion at the time of performing the operation of attaching the film member. Between the clamped position and the peeling portion, a sticking / peeling synchronization mechanism portion is provided which performs an operation of peeling the release film from the film member in active synchronization with “the sticking operation of the film member”. For this reason, when performing the affixing operation of the film member, it is possible to perform an operation of peeling the release film from the film member in synchronization with the “affixing operation of the film member”.

Specifically, when performing the "film member pasting operation", since the release film is in a clamped state, the release film is released from the tension by the tension applying portion, and the release film is released. The tension applied is only the tension between the clamper and the peeling portion. Then, in this state, since the release film is peeled off from the film member in synchronization with the attaching operation of the film member, the tension applied to the release film becomes small. For this reason, even if a large tension is added to the release film by the tension applying section, the release film is released from the tension by the tension applying section, and the tension of the release film is so large. It will not join.

Thereby, according to the film member affixing device of the present invention, when performing the film affixing operation, the tension applied to the release film can be reduced. As a result, the release film can be suppressed from being damaged due to the release film being rubbed at the folded back portion of the peeling portion. In addition, there is also a problem that when the film member affixing device is used for a long time, the folded portion of the peeling portion is also abraded away due to the friction with the release film, but according to the film member affixing device of the present invention It is also possible to suppress abrasion of the part.

Note that "actively" in "actively synchronized" means, for example, "actively". Therefore, the phrase "actively synchronizes and performs the action of peeling the release film from the film member" means, for example, "actively performs the action of synchronously peeling the release film from the film member" It can also be done.

[2] In the film member affixing device of the present invention, the affixing / peeling synchronization mechanism portion is provided at a predetermined position between the tension applying portion and the peeling portion, and the release film is subjected to the tension applying portion. A clamper which clamps at a predetermined position between the sheet and the peeling portion, and a position between the clamper and the peeling portion and attached to the film member supply mechanism side, and peeling at the peeling portion A first folding roll that folds the released film forward so as to advance in substantially the same direction as the advancing direction of the film member, and is disposed between the clamper and the first folding roll and attached to the side of the table The release film folded back by the first folding roll is substantially opposite to the traveling direction of the film member It is preferred to have the, second folding roll folding so as to proceed.

When the sticking / peeling synchronization mechanism portion has such a configuration, when performing the sticking operation of the film member, “sticking the film member between the position clamped by the clamper and the peeling portion. Actively synchronized to "action", an action can be performed to strip the release film from the film member.

[3] In the film member affixing device of the present invention, the table is provided with a lift mechanism for moving the table up and down, and the film member affixing operation is performed. When the vertical direction position of the table is the vertical direction reference position, the control device temporarily performs the table below the vertical direction reference position when the film member performs the cueing operation of the film member. Control the elevating mechanism so as to cause the film member to move downward and perform the "film member indexing operation" by the film member indexing control function at a predetermined timing until the film member attaching operation is started. It is preferable to further have a table elevation control function to control the elevation mechanism so as to raise the table to the vertical reference position. There.

As described above, when performing the film member indexing operation, the film member is moved downward (retracted) temporarily below the reference position in the vertical direction to perform the film member indexing operation. The elevating mechanism is controlled to raise (return) the table to the reference position in the vertical direction at a predetermined timing before the paste operation starts. By performing such control, it is possible to cue the film member with high accuracy, and thereby the tip end in the traveling direction of the film member can be made to reach the attachment start end of the affixing member with high accuracy. it can.

That is, since the adhesive is applied to the film member from which the release film has been peeled off, the adhesive adheres to the affixing member when the film member performs the cueing operation while the table is in the vertical direction reference position. As a result, the movement of the film member is impeded, and there may occur a problem that the leading end of the film member in the movement direction can not reach the adhesion start end of the member to be adhered with high accuracy. In order to prevent such a problem, the table is temporarily lowered (retracted) below the reference position in the vertical direction when performing the indexing operation for the film member. It is preferable that the predetermined timing before the film member sticking operation starts is substantially the same timing as the end of the film member cueing operation or the same as the end of the film member cueing operation.

[4] In the film member bonding apparatus of the present invention, it is preferable that the folded portion of the peeling portion be a corner.

As described above, since the folded back portion of the peeling portion is a corner portion, the peeling operation can be reliably performed when peeling the release film from the film member. In addition, when the folded-back portion of the peeling portion is a corner, the release film is more easily damaged and the folded-back portion of the peeling portion is also easily worn away, but the folded-back portion of the peeling portion is a corner and Even in the case where it is the case, breakage of the release film can be suppressed by reducing the tension applied to the release film. In addition, it is possible to suppress abrasion of the folded back portion caused by rubbing of the release film at the folded back portion of the peeling portion. The corner may be, for example, a wedge-shaped corner.

[5] In the film member affixing device of the present invention, it is preferable that a feeder for performing the “film member indexing operation” is provided between the clamper and the tension applying portion. .

By providing such a feeder, it is possible to perform a cueing operation of the film member from which the release film has been peeled off. Thus, the forward end of the film member in the traveling direction can be made to reach the attachment start end of the affixing member.

[6] In the film member affixing device of the present invention, the film member supply mechanism further includes a camera installed so as to be able to pick up an image of a predetermined portion of the film member, and the control device is It is preferable to further have a feeder control function of monitoring the position of the predetermined portion of the film member based on shooting data and controlling the feeder to perform the "heading operation of the film member".

As a result, the cueing operation of the film member can be performed with high accuracy. Thus, the leading end of the film member in the traveling direction can be made to reach the attachment start end of the affixing member with high accuracy.

[7] In the film member affixing device of the present invention, it is preferable that the predetermined part of the film member is a rear end portion in the traveling direction of the film member.

As described above, by providing the camera so that the rear end of the film member (the film member to be attached at this time) in the traveling direction can be imaged, it is possible to provide a space for installing the camera. it can. This is because when the leading end of the film member which is to be attached at this time is to be photographed, the camera is installed in the vicinity of the leading end of the film member in the advancing direction since the pressing roll and the like exist. This is because there is no room for space.

[8] In the film member affixing device of the present invention, the film member supply mechanism portion has a guide surface for guiding the progress of the film member from which the release film has been peeled by the peeling portion, and the guide surface The guide member further has a non-adhesive surface treatment for preventing adhesion of an adhesive, and the guide member has an edge at the tip end of the guide member, and the guide surface is the adherable member. It is preferable that an acute angle is formed with respect to the member, and the attachment start end of the member to be attached is positioned on the extension of the guide surface.

Thus, on the front side of the peeling portion, a guide member for guiding the progress of the film member is provided. Since the non-adhesive surface processing is applied to the guide surface of the guide member, the adhesive surface of the film member can be prevented from adhering to the guide surface of the guide member, and the film member It can be made to progress smoothly on the guide surface.

Further, in the guide member, the tip end portion of the guide member is an edge, the guide surface forms an acute angle with the affixing member, and the affixing member is pasted on the extension of the guide surface Since the start end is positioned, the distance between the end of the guide member and the attachment start end of the affixing member can be made as narrow as possible, and the end of the guide member and the affixing The difference in level between the attachment start end of the member and the end can be made as small as possible. This makes it possible to shorten the distance until the leading end of the film member in the traveling direction reaches the sticking start end of the affixing member, and the film member is bent by its own weight until it reaches the sticking start end. It is possible to prevent such a situation. As a result, the leading end of the film member in the traveling direction traveling on the guide surface can be made to reach the sticking start end of the member to be stuck with high accuracy.

Further, since the guide member is installed so that the attachment start end of the affixing member is positioned on the extension of the guide surface, the tip end portion of the film member advancing in the guide surface is also covered by this It can be made to reach the pasting end of the pasting member with high accuracy. Note that “the tip of the guide member is an edge” means, for example, that the tip may have an acute angle, and that the tip may be thin. There is.

[9] In the film member bonding apparatus of the present invention, the guide surface is preferably electrically conductive and electrically grounded.

As described above, since the guide surface also has conductivity and is electrically grounded, even if static electricity is charged on the film member, static electricity on the film member can be removed. As a result, dust and dirt do not easily adhere to the film member, and the film member can be attached with high precision to the affixing member when the film member is attached to the affixing member. Moreover, when sending the to-be-adhered member to which the film member is attached to the next step, it is possible to prevent the static electricity from being sent to the next step while being charged.

In particular, even when static electricity is charged on the adhesive surface of the film member (surface on which the adhesive is applied), the electrostatic surface of the film member contacts the conductive guide surface, whereby the static electricity on the adhesive surface is It can be removed reliably. As a result, when the affixing member to which the film member is attached is sent to the next step, the electrostatic charge is sent between the affixing member and the film member while being charged to the next step. You can prevent that. If static electricity is charged between the adherend member and the film member, the static electricity can not be easily removed. For this reason, it is extremely effective as a countermeasure against static electricity that the static electricity charged on the adhesive surface can be reliably removed only by contacting the adhesive surface of the film member with the conductive guide surface.

[10] In the film member affixing device of the present invention, the film member supply mechanism further includes a pressing roll for pressing the forward end of the film member in the forward direction of the affixing member. The pressing roll has a configuration in which a plurality of pressing rolls are stacked in a plurality of stages, and a rotation axis of each of the plurality of pressing rolls is along the side of the leading end of the film member. It is preferable to be installed so that

Since the pressing roll for pressing the forward end of the film member in the forward direction of the film member to the affixing start end of the affixing member is provided, the film member can be reliably positioned at the affixing start end of the affixing member. In addition, with such a configuration of the pressing roll, it is possible to reliably press the advancing direction leading end of the film member along the side of the advancing direction leading end. In particular, when the length in the width direction of the film member (length along the rotation axis of the pressing roll) is long, the leading end of the film member in the advancing direction is pressed with a uniform pressing force over the entire width direction. It is possible to securely press the leading end of the film member in the moving direction.

[11] In the film member affixing device of the present invention, among the plurality of pressing rolls, the diameter of the pressing roll positioned on the side in contact with the film member is set smaller than the diameter of the other pressing rolls. Is preferred.

By setting the diameter of the pressing roll positioned on the side in contact with the film member in this way, even if the distance between the leading end of the guide member and the sticking start end of the affixing member is narrow, the pressing roll Since the diameter is small, it is possible to reliably press the leading end of the film member in the traveling direction without contacting the guide member. In addition, since the warp of the holding roll having a small diameter can be prevented, the leading end of the film member in the traveling direction can be held down with a uniform pressing force over the entire width direction of the film member.

[12] In the film member affixing device of the present invention, the tension applying portion is preferably a dancer roll.

Since the tension applying unit is a dancer roll, it is possible to apply a tension to the release film, and at the time of indexing of the film member and at the time of attaching operation of the film member, indexing operation of the film member or The film member attaching operation and the winding operation of the release film by the winding roll do not have to be synchronized, and each operation can be performed independently.

[13] In the film member affixing device of the present invention, the film member is in the form of a long sheet, and the release film is left for each predetermined length along the longitudinal direction of the long sheet film member. It is preferable that a slit is provided, and the release film is peeled off by the peeling portion to form a singulated film member, and the singulated film member is attached to the affixing member .

With such a configuration of the film member, it is possible to continuously perform the operation of attaching the film member to the individual members to be attached.

[14] In the film member affixing device of the present invention, the film member is a polarizing film or a protective film used for a liquid crystal panel or an electromagnetic wave shielding film used for an electronic device, and the affixing member is the liquid crystal It is preferable that it is a glass substrate or a synthetic resin substrate used for a panel or an electronic circuit substrate used for an electronic device.

According to the film member affixing device of this aspect, the polarizing film or the protective film used for the liquid crystal panel can be precisely attached to the glass substrate or the synthetic resin substrate used for the liquid crystal panel, or the electromagnetic wave shielding film used for the electronic device Since the liquid crystal panel can be precisely attached to an electronic circuit substrate used in an electronic device, a high-quality liquid crystal panel or an electronic device can be manufactured.

[15] The film member affixing method of the present invention is such that the film member has one surface as an adhesive surface and the release film is peeled off from the film member on which the release film is peelably attached. After the “film member indexing operation” for causing the leading end of the film member in the traveling direction from which the release film has been peeled to reach the attachment start end of the member to be attached, The film member is attached to the affixing member while peeling off the release film starting from the affixing start end with the forward direction end of the film member pressed against the affixing start end of the affixing member It is a film member affixing method which a film member affixing device performs "the affixing operation of a film member", and the film The lum member affixing device includes a table on which the affixing member is placed, a film member supply mechanism for supplying the film member, and the film member supply mechanism for performing the "film member indexing operation". It has a film member indexing control function that controls the unit, and an adhesion control function that relatively moves at least one of the film member supply mechanism and the table to perform the "film member adhesion operation". A control device, the film member supply mechanism portion has a folded portion that folds the release film back in a direction substantially opposite to the traveling direction of the film member, and the release film is folded at the folded portion; The film is relatively moved by relatively moving at least one of the film member supply mechanism and the table. A release film for removing the release film from the film member, and a release film advancing mechanism for advancing the release film folded back at the folded portion, and the release film advancing mechanism comprises the released release folded back When it is disposed between a tension applying unit that applies a tension along the direction in which the release film advances to the film, and the tension applying unit and the peeling unit, and the “film member sticking operation” is performed In the above, the release film is clamped at a predetermined position between the tension applying portion and the peeling portion, and the "film member sticking operation" is actively performed between the clamped position and the peeling portion. Perform the action of removing the release film from the film member in synchronization with And a synchronization mechanism unit, and when the "film member sticking operation" is performed, the release film is clamped at a predetermined position between the tension applying unit and the peeling unit, The release film is peeled off from the film member in active synchronization with the “pasting operation of the film member” between the clamped position and the peeling portion.

According to the film member affixing method of the present invention, the same effect as the film member affixing device of the present invention described in the above [1] can be obtained. In the film member affixing method of the present invention, it is preferable to have the same characteristics as the film member affixing device of the present invention described in the above [2] to [14].

It is a figure shown in order to demonstrate the film member affixing apparatus 1 which concerns on Embodiment 1. FIG. It is a figure shown in order to demonstrate the polarizing film 30 (the polarizing film 30 in the state to which the release film 40 is stuck). It is a figure shown in order to demonstrate the guide member 230 and the pressing roll 240. FIG. It is a figure shown in order to explain operation of film member pasting device 1 concerning an embodiment. It is a figure shown in order to demonstrate the film member affixing device 1 operation | movement (operation | movement of the continuation of FIG. 4) which concerns on embodiment. It is a figure shown in order to demonstrate the case where the guide member 230 is made into plate shape. It is a figure which takes out and shows the principal part of the film member affixing device 800 described in patent document 1. FIG. It is a figure shown in order to demonstrate an example of the conventional other film member affixing apparatus 900. FIG.

Hereinafter, embodiments of the present invention will be described. The film member affixing device 1 according to the embodiment advances the film member while peeling off the release film from the film member to which the release film is peelably attached to the adhesive surface, and the release film is peeled off After performing the "heading operation of the film member" for causing the forward end of the advancing direction to reach the attaching start end of the affixing member, the advancing end of the advancing direction of the film member is pressed against the affixing beginning of the adherend It is a film member affixing device which performs "film member affixing operation" which affixes a film member to a member to be affixed while peeling off a release film starting from an affixing start end.

In addition, although a film member is stuck on the said film member affixing surface on the basis of the sticking starting end in the film member affixing surface of a member to be stuck, in this specification, "a film member affixing is carried out For example, it is described as "the film member is stuck starting from the sticking start end of the member to be stuck," or simply "the film member is stuck to the member to be paste" It is written that it will be

Moreover, in the film member affixing device 1 according to the first embodiment, the film member is a polarizing film used for a liquid crystal panel, and the affixing member is a glass substrate used for a liquid crystal panel . Here, the size of the film member (polarizing film) is not particularly limited. However, in the film member bonding apparatus 1 according to the first embodiment, the member to be bonded (glass substrate) has, for example, a long side Vertical) A relatively large size of 1500 mm × short side (horizontal) of about 900 mm, with a margin of about 5 mm from the side in the lateral direction and the side in the longitudinal direction of the member to be attached having such a size It is assumed to have a size that can be attached (for example, a long side (longitudinal) 1490 mm × short side (lateral) about 890 mm).

In general, a liquid crystal panel has a configuration in which polarizing films having polarization directions orthogonal to each other are attached to two glass substrates (a glass substrate on the front side and a glass substrate on the back side) provided on the front side and the back side of a liquid crystal layer. However, in the film member bonding apparatus 1 according to the first embodiment, a case where a polarizing film is bonded to a glass substrate used for one of the front side glass substrate and the rear side glass substrate will be described. Hereinafter, the film member bonding apparatus 1 which concerns on embodiment is demonstrated in detail.

In the following description, "film member" may be described as "polarizing film", and "member to be adhered" may be described as "glass substrate". For this reason, in the following description, when it is described as "a polarizing film", the said polarizing film points out a "film member", and when it is described as a "glass substrate", the said glass substrate Indicates a "member to be adhered".

FIG. 1 is a figure shown in order to demonstrate the film member affixing apparatus 1 based on Embodiment 1. FIG. In addition, FIG. 1 is a figure which shows the film member affixing apparatus 1 concerning Embodiment 1 typically. The film member affixing device 1 according to the first embodiment, as shown in FIG. 1, is a table 100 on which the glass substrate 10 is placed, a film member supply mechanism 200 for supplying a polarizing film 30 (film member), and It has the control apparatus 300 which has a control function for controlling each component of the film member affixing device 1 which concerns on a form. The detailed configurations and operations of the table 100 and the film member supply mechanism unit 200 will be described later. Moreover, the control function which the control apparatus 300 has is also mentioned later.

Moreover, in the film member affixing device 1 according to the first embodiment, the polarizing film is moved by moving the table 100 (moving in the xx ′ direction along the x axis) with the film member supply mechanism 200 fixed. It is assumed that the operation of attaching 30 to the glass substrate 10 is performed.

The film member supply mechanism unit 200 has the peeling portion 210 having a folded portion 211 that folds the release film 40 in the direction substantially opposite to the traveling direction of the polarizing film 30, and the release film 40 folded at the folded portion 211 of the peeling portion 210. And a release film advancing mechanism 220 for advancing in the release film advancing direction. The “release film advancing direction” is a direction (arrow x direction) in which the release film 40 folded back at the peeling section 210 advances. In addition, the folded back portion 211 may be a corner, and the corner may have a slight roundness at the tip.

In the peeling part 210, in a state where the release film 40 is folded in a direction substantially opposite to the direction in which the polarizing film 30 advances by the folding part 211, in this case, the release film 40 is removed from the polarizing film 30 by moving the table 100. Acts to peel off.

In addition, the film member supply mechanism unit 200 includes a guide member 230 having a guide surface 231 for guiding the progress of the polarizing film 30 from which the release film 40 is peeled off by the peeling unit 210, and a tip 30a of the polarizing film 30 in the traveling direction. Hereinafter, when the leading end 30a may be abbreviated, it may be pressed when the leading end 30a of the polarizing film 30 is attached to the pasting end 10a when the leading end 10a of the glass substrate 10 is reached. It has the roll 240 and the camera 250 installed so as to be able to image a predetermined portion (described later) of the polarizing film 30.

Further, in the film member supply mechanism portion 200, in addition to the above-described components, there are advancing

auxiliary rolls

261 and 262 for causing the polarizing film 30 (the polarizing film 30 with the release film 40 attached thereto) to bend and advance. It is provided. There are also a delivery mechanism section for delivering the polarizing film 30 (the polarizing film 30 in the state where the release film 40 is attached) and a dancer roll provided in the middle of the traveling path, but these are not shown. .

By the way, in FIG. 1, the polarizing film 30 is in a state of reaching the attachment start end 10 a of the glass substrate 10 (in a state of being pointed out), and the table 100 is the attachment start end 10 a of the glass substrate 10. The case where it has moved to the position which performs the operation | movement which affixes the polarizing film 30 from the starting point is shown.

When the film member affixing device 1 according to the embodiment is described, the front end portion 30 a of the polarizing film 30 from which the release film 40 is peeled is made to reach the affixing start end 10 a of the glass substrate 10. The operation may be referred to as "the polarizing film 30 cueing operation". In addition, after performing the cueing operation of the polarizing film 30, the release film 40 is peeled off with the sticking start end 10a as a starting point in a state where the leading end 30a of the polarizing film 30 in the advancing direction is pressed against the sticking start end 10a of the glass substrate 10. However, the operation of attaching the polarizing film 30 to the glass substrate 10 may be referred to as “the attaching operation of the polarizing film 30”.

Moreover, in FIG. 1, the case where the holding | pressing roll 240 becomes a position which detached | left from the front-end | tip part 30a of the said polarizing film 30 is shown, but when performing the affixing operation of the polarizing film 30, the said The holding roll 240 holds the leading end 30 a of the polarizing film 30. Then, the position in the vertical direction along the z-axis of the table 100 at the time of performing the attaching operation of the polarizing film 30 is taken as the “vertical direction reference position”. The vertical reference position is shown as the height h from the surface of the stage 50. Therefore, the vertical direction reference position is hereinafter referred to as "vertical direction reference position h".

Further, in FIG. 1, the polarizing film 30 (the polarizing film 30 in a state where the release film 40 is attached) is bent downward at a large angle by the advancing auxiliary roll 261, and then xy by the advancing auxiliary roll 262. It bends so that it may become a predetermined angle (in the film member pasting device 1 concerning an embodiment, it makes 30 degrees) to a plane, and it reaches the exfoliation part 210. In addition, the said angle is not limited to 30 degree | times, It can set to an optimal angle suitably.

As described above, the polarization film 30 (the polarization film 30 in the state where the release film 40 is attached) is bent downward in the traveling direction by the traveling

auxiliary rolls

261 and 262 on the traveling path of the polarizing film 30. The traveling direction of the polarizing film 30 is generally taken as a direction (arrow x 'direction) from the right to the left in the drawing along the x-axis. Therefore, in the present specification, when the traveling direction of the polarizing film 30 is described, it is described as "arrow x 'direction along x axis" or "right to left direction in the drawing".

In addition, the inside of the broken line frame A in FIG. 1 is an enlarged cross-sectional view of the polarizing film 30 (the polarizing film 30 in a state where the release film 40 is attached). The configuration of the polarizing film 30 (the polarizing film 30 in a state where the release film 40 is attached) will be described with reference to FIG.

FIG. 2 is a figure shown in order to demonstrate the polarizing film 30 (The polarizing film 30 in the state to which the release film 40 is stuck). In FIG. 2, FIG. 2 (a) is a plan view, and FIG. 2 (b) is a side sectional view. In addition, FIG. 2 is a figure which shows typically and thickness etc. are exaggerated and drawn.

As shown in FIG. 2, the polarizing film 30 has a long shape, and a long release film 40 is peelably attached. The polarizing film 30 is cut at predetermined lengths leaving the release film 40 so that the polarizing film 30 can be singulated to the size corresponding to the individual glass substrate 10 (see FIG. 1) to be attached. ing. For example, in the case where the long side of the glass substrate 10 (1500 mm) is placed on the table 100 along the x-axis, a release film is provided for each long side (1490 mm) of the polarizing film 30. Cuts C1, C2, ... are provided leaving 40.

Further, since the adhesive 31 is applied to the polarizing film 30, when the release film 40 is peeled off from the polarizing film 30, the adhesive 31 is exposed on one surface (referred to as the lower surface) of the polarizing film 30. It will be. Note that the surface of the polarizing film 30 on which the adhesive 31 is applied is referred to as an “adhesion surface”.

In the long polarizing film 30 shown in FIG. 2, in the case of individually explaining polarizing films corresponding to individual glass substrates, the individual polarizing films are sequentially taken from the left side in FIG. 30, the second polarizing film 30, and so on. The cuts C1, C2,... May be the rear end in the traveling direction (hereinafter abbreviated as the rear end) in each polarizing film 30, and may also be the front end. . For example, in the case of focusing on the first polarizing film 30, the cut C1 is the rear end 30b of the first polarizing film 30, and in the case of focusing on the second polarizing film 30, the cut C1 is It becomes the tip 30 a of the second polarizing film 30.

Returning to FIG. 1, individual components of the film member bonding apparatus 1 according to the embodiment will be described in more detail.

The table 100 is capable of reciprocating on the guide rails 60 laid on the stage 50 along the x-axis in the direction of the arrow x-x '. The table 100 has a slider 110 capable of traveling on the guide rail 60 and a table main body 120 attached on the slider 110. The table main body 120 mounts the glass substrate 10 (member to be bonded). The table body 120 is capable of reciprocating along the x-axis with the slider 110, and moves along the y-axis, rotates on the xy plane, and along the z-axis with respect to the slider 110. It is possible to go up and down.

Therefore, in the table 100, the y-axis direction position adjustment mechanism that enables the position adjustment of the table main body 120 along the y-axis, and the rotation angle adjustment of the table main body 120 on the xy plane are possible. An angle adjustment mechanism and an elevation mechanism capable of raising and lowering the table main body 120 along the z-axis are provided. Since various mechanisms can be adopted for the y-axis direction position adjusting mechanism, the rotation angle adjusting mechanism, and the elevating mechanism, the illustration and description of the respective mechanisms will be omitted. Further, the reciprocation control along the x axis of the slider 110, the position adjustment control in the y axis direction of the table main body 120, the rotation angle adjustment control, and the elevation control are performed as control functions of the control device 300.

As described above, the table 100 includes the slider 110 and the table main body 120. However, in this specification, these may be collectively described as the "table 100". Therefore, for example, the fact that the table 100 moves along the x axis means that the slider 110 and the table main body 120 move together along the x axis, and the table 100 is the z axis. In fact, the table body 120 moves up and down along the z-axis with respect to the slider 110.
Moreover, in the film member bonding apparatus 1 which concerns on embodiment, the slider 110, the table main-body part 120, the stage 50, and the guide rail 60 shall be metal, such as iron, for example.

Next, the release film advancing mechanism 220 will be described.
The release film advancing mechanism 220 advances the release film 40 folded back at the peeling part 210 in a direction substantially opposite to the advancing direction of the polarizing film 30 (release film advancing direction).
In the release film advancing mechanism 220, the release film 40 advances with respect to the release film 40 folded back by the sticking / peeling synchronization mechanism 221 (details will be described later) and the folding part 211 of the peeling part 210. A tension applying unit (a dancer roll 222 in the film member affixing device 1 according to the embodiment) for applying a tension along a direction (release film advancing direction), and a plurality of advance assisting rolls (for example, an advance assisting roll) 223, 224), a feeder 225 for performing a cueing operation of the polarizing film 30, and a take-up roll provided on the further downstream side of the dancer roll 222 (the front side in the release film advancing direction) (Not shown) etc. are provided.

The sticking / peeling synchronization mechanism unit 221 is disposed between the dancer roll 222 as a tension applying unit and the peeling unit 210. When the polarizing film 30 is attached, the release film 40 is clamped at a predetermined position between the dancer roll 222 and the peeling portion 210, and polarization is performed between the clamped position and the peeling portion 210. The release film 40 is peeled off from the polarizing film 30 in active synchronization with the affixing operation of the film 30. In the following description, the operation of peeling the release film 40 from the polarizing film 30 may be abbreviated as “the peeling operation of the release film 40”.

As a specific component of the pasting / peeling synchronization mechanism part 221, it is provided at a predetermined position between the dancer roll 222 and the peeling part 210, and the release film 40 is provided between the dancer roll 222 and the peeling part 210. The release film 40 which is located between the clamper 221c which clamps at a predetermined position, the clamper 221c and the peeling part 210 and is attached to the film member supply mechanism 200 side and peeled off by the peeling part 210 is The first folding roll 221a is folded back so as to advance in substantially the same direction as the advancing direction of the polarizing film 30, and is disposed between the clamper 221c and the first folding roll 221a and attached to the table 100 side. The release film 40 folded back by the first folding roll 221a And a second folding roll 221b to fold so as to travel in substantially opposite direction to the traveling direction of the light film 30.

Since the first folding roll 221a is attached to the film member supply mechanism 200 side, the position does not change even if the table 100 moves. On the other hand, since the second folding roll 221b is attached to the side of the table 100 (specifically, the slider 110 of the table 100), the second folding roll 221b moves along with the movement of the table 100 (slider 110) in the x-x 'direction.

Further, the clamper 221c clamps the release film 40 when performing the operation of attaching the polarizing film 30 to the glass substrate 10, but when performing the indexing operation of the polarizing film 30 by the feeder 225, the release is performed. The clamp of the film 40 is released. The specific operation of the pasting / peeling synchronization mechanism section 221 configured in this way will be described later. The clamp / clamp release operation of the release film 40 by the clamper 221c and the cueing operation of the polarizing film 30 by the feeder 225 are performed as one of the control functions of the control device 300.

The feeder 225 is provided between the clamper 221c and the advancing auxiliary roll 223, and has a function for causing the leading end 30a of the polarizing film 30 from which the release film 40 has been peeled to reach the attachment start end 10a of the glass substrate 10. That is, it has a function to perform the cueing operation of the polarizing film 30. The feeder 225 has a plurality of clampers 226 for clamping the release film 40, and can reciprocate in the direction of the arrow x-x 'along the x-axis.

Control of the feeder 225 is performed as one of the control functions of the controller 300. In this case, the control device 300 monitors the position (position along the x-axis) of a predetermined portion (for example, the rear end 30b) of the polarizing film 30 based on the imaging data from the camera 250. The feeder 225 is controlled so that the portion 30 a reaches the attachment start end 10 a of the glass substrate 10.

As an example of control on the feeder 225 by the control device 300, for example, the control device 300 sets a polarizing film (first polarizing film 30) to be attached at this point based on shooting data from the camera 250. Monitoring the position of the rear end 30b (the cut C1 between the first polarizing film 30 and the second polarizing film 30) until the position of the rear end 30b (the cut C1) reaches the target position , Feeder 225 is operated.

Specifically, the position of the rear end 30b of the polarizing film 30 when the front end 30a of the polarizing film 30 correctly reaches the attachment start end 10a of the glass substrate 10 is previously determined as the "target position". The control device 300 advances the release film 40 in the release film advancing direction until the position of the rear end 30b (the cut C1) of the first polarizing film 30 to be attached at this point reaches the target position. Thus, the first polarizing film 30 can be pointed out with high accuracy. That is, the leading end 30 a of the polarizing film 30 can be made to reach the bonding start end 10 a of the glass substrate 10 with high accuracy.

Then, when the position of the rear end portion 30b (the cut C1) of the polarizing film 30 reaches the target position, the clamp operation of the feeder 225 on the release film 40 is released to control the feeder 225 to return to the original position. .

In the film member bonding apparatus 1 according to the embodiment, the camera 250 monitors the position of the rear end 30b (the cut C1) of the first polarizing film 30 to be bonded at the present time. However, if the camera 250 is to be installed at a position where the position of the leading end 30a of the first polarizing film 30 to be attached at this time is to be monitored, the presence of the pressing roll 240 (FIG. This is because there is not enough space for installing the camera 250, etc.). However, if there is enough space for installing the camera 250, the position of the leading end 30a of the first polarizing film 30 to be attached at this point may be monitored.

Subsequently, the guide member 230 and the pressing roll 240 will be described with reference to FIG.
FIG. 3 is a figure shown in order to demonstrate the guide member 230 and the press roll 240. As shown in FIG. 3 (a) is an enlarged view of the range enclosed by the broken line frame B in FIG. 1 and the pressing roll 240 of FIG. 1, and FIG. 3 (b) is a view along FIG. 3 (a) along the z axis. It is the figure (plan view) seen from the top. In FIG. 3 (b), the pressing roll 240 and the like shown in FIG. 3 (a) are not shown.

First, the guide member 230 will be described. The guide member 230 has a guide surface 231 for guiding the progress of the polarizing film 30 from which the release film 40 has been peeled off. Since FIG. 3 is also a schematic view as in FIG. 1, the attachment structure of the guide member 230 is not shown, but the guide member 230 is a support member standing from the stage 50 (see FIG. 3). Not shown). The support member is also made of metal such as iron. The guide member 230 is formed of, for example, a metal such as stainless steel, and the guide surface 231 (the surface on the side in contact with the polarizing film 30) of the guide member 230 has non-adhesiveness. . That is, the non-adhesive surface process which has non-adhesiveness in the state which maintained electroconductivity is given to the guide surface 231 of the guide member 230. FIG. As described above, the non-adhesive surface processing is performed on the guide surface 231 because one surface of the polarizing film 30 is an adhesive surface on which the adhesive 31 (see FIG. 2) is applied.

That is, since the adhesive 31 is applied to the adhesive surface of the polarizing film 30 in a state in which the release film 40 is peeled off, the non-adhesive surface processing for preventing the adhesive 31 from adhering to the guide surface 231 of the guide member 230 If not applied, the adhesive 31 of the polarizing film 30 adheres to the guide surface 231 of the guide member 230, and the polarizing film 30 can not progress smoothly along the guide surface 231 of the guide member 230. is there.

The non-adhesive surface treatment for preventing the adhesion of the adhesive 31 is a known technique, and for example, a technique of surface treatment called “TOICAL (registered trademark) S coating treatment” can be adopted. By applying such surface treatment (Tosical (registered trademark) S coating film formation / Tosico Co., Ltd.) to the guide surface 231 of the guide member 230, the adhesive surface of the polarizing film 30 from which the release film 40 is peeled is a guide Without adhering to the guide surface 231 of the member 230, the polarizing film 30 can be smoothly advanced to the adhesion start end 10a of the glass substrate 10. As Toshikal (registered trademark) S, for example, those of UNA-300 series (UNA-310-X10), UNA-800 series, TS-1000 series, TS-1080 series, TS-1310 series should preferably be used. it can.

The film thickness of the coating film of Toshikal (registered trademark) S is, for example, 1 μm to 200 μm, preferably 3 μm to 150 μm. An uneven structure may be formed on the guide surface 231 of the guide member 230 before forming the coating film of Toshikal (registered trademark) S. The average surface roughness of the concavo-convex structure in this case is preferably 2 μm to 15 μm.

By applying such non-tacky surface processing to the guide surface 231 of the guide member 230, the adhesive surface of the polarizing film 30 from which the release film 40 is peeled does not adhere to the guide surface 231 of the guide member 230. The film 30 can be smoothly advanced to the adhesion start end 10 a of the glass substrate 10. Such surface processing is non-adhesive surface processing without loss of conductivity. Therefore, the guide surface 231 is such that the conductivity is maintained even after the non-adhesive surface processing is performed. For this reason, the conductivity of the guide surface 231 is not impaired. Further, the guide surface 231 is electrically grounded. That is, the guide surface 231 has conductivity and is grounded. The reason why the guide surface 231 is conductive and grounded will be described later.

Moreover, in the film member affixing device 1 according to the embodiment, the guide member 230 has a triangular block shape, and the tip end portion 232 of the guide member 230 is an edge, and the guide surface 231 is the glass substrate 10 It is arranged to make an acute angle to. Hereinafter, the distal end portion 232 of the guide member 230 will be referred to as “guide member distal end portion 232”.

In the guide member 230 configured as described above, as shown in FIG. 3A, the position where the bonding start end 10 a of the glass substrate 10 is on the perpendicular L passing through the pressing point P of the pressing roll 240 (pasting operation When it reaches a start position, it is installed so that pasting start end 10a of glass substrate 10 may be located on extension of guide surface 231.

Further, the guide member 230 is a position along the z-axis that does not contact the glass substrate 10 placed on the table 100, and a step between the guide member distal end portion 232 and the glass substrate 10 Is placed at a position where the The “pressure point P” of the pressing roll 240 refers to a point that applies a pressing force to the polarizing film 30 when the pressing roll 240 performs an operation of pressing the polarizing film 30.

Here, the inclination angle of the guide surface 231, that is, the angle θ between the guide surface 231 and the xy plane (the angle θ between the guide surface 231 and the glass substrate 10 mounted on the table 100) is an embodiment. In the film member affixing device 1 concerned, it shall be set as 30 degrees. The angle θ between the guide surface 231 and the glass substrate 10 is not limited to 30 degrees, as long as the leading end 30 a of the polarizing film 30 can smoothly reach the bonding start end 10 a of the glass substrate 10.

Further, the installation position of the guide member 230 is the distance between the tip end portion 232 of the guide member 230 and the adhesion start end 10 a of the glass substrate 10 when the adhesion start end 10 a of the glass substrate 10 reaches the adhesion operation start position It is preferable that the distance d) along the x axis be set as narrow as possible. In addition, although the space | interval d changes with the inclination angles of the guide surface 231, etc., in the film member affixing apparatus 1 which concerns on embodiment, the space | interval d is 15 mm. The distance d is not limited to 15 mm, and can be set to an optimal value according to the angle of the guide surface 231 of the guide member 230 with respect to the xy plane, the material and size of the polarizing film 30, and the like.

In addition, the guide member 230 is electrically grounded. Specifically, as described above, the guide member 230 is attached to a support member (not shown) erected on the stage 50 (see FIG. 1), and these support member and the stage 50 Since both are made of metal, the guide member 230 is electrically grounded via the support member and the stage 50. For this reason, the guide surface 231 which the said guide member 231 has will be earth | grounded inevitably.

In addition, since FIG. 1 demonstrated previously is a figure which shows the film member affixing apparatus 1 concerning Embodiment 1 typically, although it does not show about the specific installation state of the stage 50, etc., the stage 50 It shall be installed in the state where it was electrically grounded to the floor of a factory etc. (earth). As a result, the guide member 230 including the guide surface 231 is electrically grounded via the support member and the stage 50.

As described above, since the guide member distal end portion 232 is an edge, in the guide member 230, the distance between the guide member distal end portion 232 and the adhesion start end 10a of the glass substrate 10 can be made as narrow as possible. While being possible, the level | step difference between the guide member front-end | tip part 232 and the adhesion | pasting start end 10a of the glass substrate 10 can be made as small as possible. Thereby, the distance until the leading end 30a of the polarizing film 30 (film member) reaches the bonding start end 10a of the glass substrate 10 (member to be bonded) can be shortened, and the polarizing film 30 is bonded start end 10a It is possible to prevent it from being bent by its own weight until it reaches. As a result, the leading end 30 a of the polarizing film 30 traveling on the guide surface 231 can be made to reach the bonding start end 10 a of the glass substrate 10 with high accuracy.

Moreover, since the guide member 230 is installed so that the adhesion start end 10a of the glass substrate 10 is positioned on the extension of the guide surface 231, the tip end of the polarizing film 30 traveling on the guide surface 231 is also thereby 30a can be made to reach the bonding start end 10a of the glass substrate 10 with high accuracy.

Further, the guide member 230 is formed of metal such as stainless steel, and the guide surface 231 of the guide member 230 has conductivity and is electrically grounded (earthed). Therefore, even when static electricity is charged on the polarizing film 30, the static electricity charged on the polarizing film 30 can be removed. As a result, dust and dirt are less likely to be attached to the polarizing film 30, and the film member is attached to the glass substrate 10 with high accuracy when performing the operation of attaching the polarizing film 30 to the glass substrate 10 as a member to be attached. It can be pasted. In addition, when the glass substrate 10 to which the polarizing film 30 is attached is sent to the next process, it is possible to prevent the static electricity from being sent to the next process while being charged.

In particular, even when static electricity is charged on the adhesive surface of the polarizing film 30 (specifically, the adhesive 31 applied to the polarizing film 30), the adhesive surface of the polarizing film 30 (the surface on which the adhesive 31 is applied) By contacting the conductive guide surface 231, the static electricity charged on the adhesive surface (adhesive 31) can be reliably removed. As a result, when the glass substrate 10 to which the polarizing film 30 is attached is sent to the next step, the electrostatic charge is sent between the glass substrate 10 and the polarizing film 30 to the next step in a state of being charged. You can prevent that. When static electricity is charged between the glass substrate 10 and the polarizing film 30, the static electricity can not be easily removed, so that the bonding surface of the polarizing film 30 simply contacts the conductive guide surface, It is extremely effective as a countermeasure against static electricity that it is possible to reliably remove the static electricity that has been charged.

Subsequently, the presser roll 240 will be described. As shown in FIG. 3A, the presser roll 240 has a configuration in which two

rolls

241 and 242 having different diameters are stacked in two stages along the perpendicular line L (two-stage stacked configuration), The

rotary shafts

241 a and 242 a are disposed in a direction along the front end 30 a of the polarizing film 30 (a direction along the y-axis). The

rotary shafts

241 a and 242 a of the first

pressing rolls

241 and 242 are rotatably attached to the pressing roll attachment member 243. The pressing roll attachment member 243 is attached to the film member supply mechanism 200.

Here, among the two holding

rolls

241 and 242, when the holding roll 241 positioned on the side contacting the polarizing film 30 is the first holding roll 241 and the other holding roll 242 is the second holding roll 242, The diameter Φ1 (see FIG. 3A) of the first pressing roll 241 is set smaller than the diameter 22 of the second pressing roll 242. In the film member bonding apparatus 1 according to the embodiment, the diameter 11 of the first pressing roll 241 is about 10 mm. As described above, the reason why the first presser roll 241 and the second presser roll 242 are configured to be two-tiered and the reason why the diameter Φ1 of the first presser roll 241 is set smaller than the diameter Φ2 of the second presser roll 242 Will be described later.

The presser roll 240 (the first presser roll 241 and the second presser roll 242) configured in this way, together with the presser roll mounting member 243, can move up and down in the direction along the z axis (the direction of the arrow zz '). When the film member affixing device 1 according to the embodiment does not perform the affixing operation of the polarizing film 30, it is in a plane (xy plane) including the glass substrate 10 placed on the table 100. On the other hand, when the polarizing film 30 is pasted, it is lowered to perform an operation of pressing the polarizing film 30. The raising and lowering operations of the pressing roll 240 are performed as one of the control functions of the control device 300.

By the way, the configuration in which the diameter 11 of the first pressing roller 241 is smaller than the diameter Φ2 of the second pressing roller 242, and the second pressing roller 242 having a large diameter is superimposed on the first pressing roller 241 having a smaller diameter. It is because of the following reason.

That is, when the glass substrate 10 reaches the bonding operation start position, the distance d between the guide member distal end portion 232 and the bonding start end 10a of the glass substrate 10 is as narrow as 15 mm as described above. In order to prevent the first presser roll 241 from coming into contact with the guide member 230 when the first presser roll 241 holds the polarizing film 30.

That is, in order to prevent the first pressing roll 241 from contacting the guide member 230, it is necessary to make the diameter 11 of the first pressing roll 241 as small as possible. On the other hand, when the diameter of the first pressing roll 241 is reduced, the pressing force for pressing the polarizing film 30 is the entire width direction of the polarizing film 30 (in this case, the width along the y axis) only with the first pressing roll 241 There is a problem that it may not be uniformly applied over the

Specifically, the length of the polarizing film 30 in the width direction (direction along the y-axis in FIG. 3) is about 890 mm in this case. Thus, when the length in the width direction (direction along the y-axis in FIG. 3) of the polarizing film 30 is as long as about 890 mm, the length along the rotation axis 241 a of the first pressing roll 241 ( The length along the y-axis also increases. Here, if the diameter 11 is smaller than the length of the first presser roll 241 along the rotation shaft 241a, warpage may occur, and if warpage occurs, the pressing force extends over the entire width direction. It will not be applied uniformly. Therefore, while the diameter 11 of the first pressing roller 241 is as small as possible, the first pressing roller 241 with a small diameter is provided so that the pressing force by the pressing point P is uniformly applied over the entire width direction of the polarizing film 30. The second pressing roll 242 having a large diameter is stacked on top of the other.

With such a configuration of the presser roll 240, the first presser roll 241 contacts the guide member 230 even if the distance d between the guide member tip portion 232 and the attachment start end 10a of the glass substrate 10 is as narrow as 15 mm. Therefore, the polarizing film 30 can be reliably pressed. Further, the second holding roll 242 can prevent the first holding roll 241 from being warped, so that the polarizing film 30 can be reliably held with uniform pressing force over the entire width direction (y-axis direction). Thus, the second pressing roll 242 functions as a backup roll for backing up the pressing force of the first pressing roll 241.

Next, the operation of the film member bonding apparatus 1 according to the embodiment will be described.
FIG. 4 is a figure shown in order to demonstrate the operation | movement of the film member affixing device 1 which concerns on embodiment.
FIG. 5 is a figure shown in order to demonstrate the operation | movement (operation | movement of the continuation of FIG. 4) of the film member affixing apparatus 1 which concerns on embodiment.

FIG. 4A shows a state before the start of the paste operation, and this state is referred to as this initial state. In this initial state, the table 100 is at a position (start position) on the left side of the drawing with respect to the pressing roll 240 (the first pressing roll 241 and the second pressing roll 242). In the initial state, on the table 100, it is assumed that the glass substrate 10 (referred to as the first glass substrate 10) to be attached at this time is placed at a predetermined position on the table 100. . Further, it is assumed that the amount of movement of the table 100 from the start position along the x axis, the position along the y axis, the angle around the z axis (angle on a plane), and the like are properly adjusted. In the initial state, the vertical position of the table 100 along the z-axis is assumed to be the vertical reference position h.

In addition, the release film 40 has a leading end (not shown) on the take-up side connected to a take-up roll (not shown) for taking up the release film 40, and is to be attached at this time The tip 30 a of the polarizing film (referred to as the first polarizing film 30) is assumed to reach the tip (folded portion 211) of the peeling portion 210. Further, in this initial state, the presser roll 240 (the first presser roll 241 and the second presser roll 242) is disengaged (upward from the plane (xy plane) including the glass substrate 10 placed on the table 100. Position).

In the initial state shown in FIG. 4A, first, the control device 300 controls the table 100 to advance in the right direction (arrow x direction) along the x axis by a predetermined movement amount. As a result, the table 100 advances to the position shown in FIG. 4B (the paste operation start position). Specifically, the control device 300 moves the table 100 in the right direction along the x axis so that the attachment start end 10 a of the first glass substrate 10 reaches a position facing the pressing point P of the pressing roll 240 ( It is controlled to move in the arrow x direction). Here, the glass substrate to be bonded is the “first glass substrate 10”, but the “first” may be omitted and described as “the glass substrate 10”.

As described above, when the table 100 moves in the right direction (the arrow x direction) along the x axis, the pasting end 10 a of the glass substrate 10 reaches a position facing the pressing point P of the pressing roll 240. In this state, the control device 300 performs the cueing operation of the first polarizing film 30 by the film member cueing control mechanism of the control device 300, but before the cueing operation of the first polarizing film 30 is performed, The control device 300 causes the table elevating control function of the control device 300 to move the table 100 by a predetermined amount Δh (see FIG. 4B) along the z-axis rather than the vertical direction reference position h. Control to lower (retract). Here, the polarizing film to be attached is the “first polarizing film 30”, but the “first” may be omitted and described as “polarizing film 30”.

With the control device 300 performing such control, as shown in FIG. 4B, the table 100 is positioned at a position where the adhesion start end 10 a of the glass substrate 10 faces the pressing point P of the pressing roll 240. Also, the position is lower than the vertical direction reference position h by a predetermined amount Δh along the z-axis. Here, “predetermined amount Δh” means that the front end portion 30 a of the polarizing film 30 that has been pointed out is placed on the glass substrate 10 placed on the table 100 when performing the cueing operation of the polarizing film 30. It may be of such an extent that contact can be reliably prevented, for example, several mm to several tens of mm. The “predetermined amount Δh” is not particularly limited, and can be appropriately set to an optimal amount.

As shown in FIG. 4B, at the position where the adhesion start end 10a of the glass substrate 10 faces the pressing point P of the pressing roll 240, a predetermined amount Δh along the z-axis relative to the vertical direction reference position h. In the state of being lowered only, the control device 300 controls the feeder 225 to perform the cueing operation of the polarizing film 30 by the film member cueing control function of the control device 300.

As a result, as shown in FIG. 4C, the feeder 225 clamps the release film 40 by the clamper 226 and advances the release film 40 by a predetermined amount in the release film advancing direction (arrow x direction). By the control device 300 performing such control, the leading end 30 a of the polarizing film 30 from which the release film 40 has been peeled reaches a position where the leading end 30 a of the glass substrate 10 faces the sticking start end 10 a. That is, the operation for picking up the polarizing film 30 is performed. However, at this time, since the table 100 is in a lowered state, the leading end 30 a of the polarizing film 30 does not contact the attachment start end 10 a of the glass substrate 10. In addition, when performing the indexing operation of such a polarizing film 30, the control device 300 controls the clamper 221c of the affixing / peeling synchronization mechanism portion 221 to release the clamp of the release film 40.

Here, the cueing operation of the polarizing film 30 will be specifically described. When the release film 40 is advanced in the release film advancing direction (arrow x direction) by a predetermined amount by the feeder 225, the release film 40 is peeled off from the polarizing film 30 by the peeling section 210 and the polarized light is peeled off. The film 30 travels on the guide surface 231 of the guide member 230, and reaches the position where the leading end 30a of the polarizing film 30 faces the attachment start end 10a of the glass substrate 10 (see FIG. 4C). . However, at this point in time, since the table 100 is in a lowered (retracted) state, the front end 30a of the polarizing film 30 in the traveling direction is not in contact with the affixing start end 10a of the glass substrate 10. There is.

In addition, when the polarizing film 30 travels on the guide surface 231 of the guide member 230, the guide surface 231 of the guide member 230 is subjected to non-adhesive surface processing, so the polarizing film from which the release film 40 is peeled off When 30 travels on the guide surface 231 of the guide member 230, the polarizing film 30 can be smoothly advanced without the adhesive surface of the polarizing film 30 adhering to the guide surface 231 of the guide member 230.

The control on the feeder 225 by the control device 300 as described above is performed based on the photographed image data from the camera 250. As an example of control with respect to the feeder 225 by the control device 300, as described above, the control device 300 is a polarizing film 30 (first polarizing film) to be attached at this time based on shooting data from the camera 250 The position of the rear end 30b (cut C1) of 30) is monitored, and the feeder 225 is operated until the position of the rear end 30b (cut C1) reaches the target position. As a result, the leading end 30 a of the polarizing film 30 reaches the bonding start end 10 a of the glass substrate 10. As described above, when the leading end 30 a of the polarizing film 30 reaches the attachment start end 10 a of the glass substrate 10, the control device 300 controls the feeder 225 to release the clamp of the release film 40. By this, the feeder 225 returns to the initial position.

When the feeder 225 advances the release film 40 in the release film advancing direction, the dancer roll 222 moves downward by the amount of movement of the feeder 225. By providing such a dancer roll 222, it is necessary to synchronize the feeding operation (heading operation) of the polarizing film 30 by the feeder 225 and the winding operation of the release film 40 by the winding roller (not shown). Rather, each operation can be performed independently. The take-up operation of the release film 40 by the take-up roll (not shown) may be performed when the descent amount of the dancer roll 222 reaches a predetermined amount.

The dancer roll 222 functions not only at the time of the cueing operation of the polarizing film 30 by the feeder 225 but also at the time of the sticking operation of the polarizing film 30. That is, even during the attaching operation of the polarizing film 30, the operation of moving the table 100 and the winding operation of the release film by the winding roll do not need to be synchronized, and each operation may be performed independently. it can. For example, in the operation of attaching the polarizing film 30, the operation of winding the release film by the winding roll is performed after the operation of attaching the polarizing film 30 is completed and the clamper 221c releases the clamp of the release film 40. It may be performed at a predetermined timing.

When the operations of FIG. 4A to FIG. 4C are finished, the operation shown in FIG. 5 is subsequently performed.
FIG. 5A shows a state where the table 100 has been raised to the vertical direction reference position h from the position where the table 100 has been lowered (retracted). When the table 100 ascends to the vertical direction reference position h, as shown in FIG. 5A, the leading end 30a of the polarizing film 30 reaches the attachment start end 10a of the glass substrate 10. Such lifting operation of the table 100 is performed by the control device 300.

As described above, when the control device 300 performs the indexing operation of the polarizing film 30, the table elevating control function causes the table 100 to be temporarily lowered (retracted) below the vertical direction reference position h. After controlling the lifting and lowering mechanism, the feeder 225 is controlled to perform the feeding operation of the polarizing film 30 by the film member feeding control function. Then, the control device 300 controls the elevating mechanism so as to raise the table 100 to the vertical direction reference position h at a predetermined timing before the attachment operation of the polarizing film 30 starts by the table elevating control function. Note that “the predetermined timing until the attachment operation of the polarizing film 30 starts” is substantially the same timing as the timing when the indexing operation of the polarizing film 30 is finished or when the indexing operation of the polarizing film 30 is finished. It is preferable to do.

By performing such control, it is possible to cue the polarizing film 30 with high accuracy, thereby causing the leading end 30 a of the polarizing film 30 to reach the pasting end 10 a of the glass substrate 10 with high accuracy. Can. That is, since the adhesive is applied to the polarizing film 30 from which the release film 40 has been peeled off, the adhesive will become a glass when performing the indexing operation of the polarizing film 30 with the table 100 in the vertical direction reference position h. It adheres to the substrate 10 and the progress of the polarizing film 30 is impeded, and there may be a problem that the leading end 30a of the polarizing film 30 can not reach the bonding start end 10a of the glass substrate 10 with high accuracy. is there. In order to prevent such a defect, when performing the indexing operation of the polarizing film 30, the table 100 is temporarily lowered (retracted) below the vertical direction reference position h.

As described above, when the table 100 is raised to the vertical direction reference position h (see FIG. 5 (a)) after the indexing operation (see FIG. 4 (c)) of the polarizing film 30 is performed, the pressing roll is performed. By 240, the pressing roll 240 is moved (lowered) so as to press the leading end 30a of the polarizing film 30 against the bonding start end 10a of the glass substrate 10. As a result, the presser roll 240 (the first presser roll 241 and the second presser roll 242) descends, and the pressing point P of the first presser roll 241 starts to attach the tip 30a of the polarizing film 30 to the glass substrate 10. It will be in the state pressed down to 10a (refer FIG.5 (b)). As a result, the polarizing film 30 is positioned at the bonding start end 10 a of the glass substrate 10. At this time, the second pressing roll 242 is in a state of pressing the first pressing roll 241.

By moving the table 100 from the state of FIG. 5B (the state in which the leading end 30a of the polarizing film 30 is pressed against the bonding start end 10a of the glass substrate 10), the bonding operation of the polarizing film 30 is performed It will be. That is, as the table 100 moves in the direction of the arrow x '(left direction in the drawing) along the x axis from the state of FIG. 5B, the polarizing film 30 starts from the bonding start end 10a of the glass substrate 10. And it is pasted (see Figure 5 (c)). At this time, since the holding roll 240 holds the state in which the polarizing film 30 is held, when the table 100 moves in the direction of the arrow x ′ (the left direction in the drawing), the first holding roll 241 rotates clockwise. While rotating, the second pressing roll 242 presses the polarizing film 30 against the glass substrate 10 while rotating in the counterclockwise direction.

When performing the attaching operation of the polarizing film 30 as shown in FIG. 5 (b) to FIG. 5 (c), the attaching / peeling synchronization mechanism part 221 functions. That is, when the polarizing film 30 is attached, the release film 40 is clamped at a predetermined position between the dancer roll 222 as a tension applying unit and the peeling unit 210, and the clamped position and the peeling unit 210 Between the polarization film 30 and the polarization film 30, and the release film 40 is peeled off from the polarization film 30 (a peeling operation of the release film 40).

Specifically, when the table 100 is moved along the x axis in the direction of arrow x '(left direction in the drawing), the polarizing film (in this case, the polarizing film 30) starts from the bonding start end 10a of the glass substrate 10. It will be pasted and put. As described above, when the table 100 moves in the direction of the arrow x ′ (left direction in the drawing) along the x axis, the release film 40 is moved by the same movement amount as the movement amount of the table 100 as the table 100 moves. Advance in the folding direction, that is, the release film advancing direction (arrow x direction).

As described above, when performing the operation of attaching the polarizing film 30 to the glass substrate 10 (the attaching operation of the polarizing film 30), the attaching / releasing synchronization mechanism portion 221 clamps the position and the peeling portion 210 together. The release film 40 is peeled off in active synchronization with the pasting operation of the first polarizing film 30.

The operation of the sticking / peeling synchronization mechanism unit 221 will be further described. As described above, the sticking / peeling synchronization mechanism unit 221 includes the first folding roll 221 a provided on the film member supply mechanism 200 side and the second folding roll 221 b provided on the table 100 side. And a clamper 221c.

The clamper 221 c clamps the release film 40 when the polarizing film 30 is attached. Therefore, when the table 100 is moved in the direction of the arrow x 'along the x-axis while the release film 40 is clamped by the clamper 221c when the polarizing film 30 is attached, the film member supply mechanism 200 The position of the first folding roll 221a attached to the side of the table 100 does not change, and the second folding roll 221b attached to the side of the table 100 moves along with the movement of the table 100. Thereby, the release film 40 is pulled by the second folding roll 221 b by the movement of the table 100 and advances in the release film advancing direction (arrow x direction).

As described above, when the polarizing film 30 is attached, since the release film 40 is in a clamped state, the release film 40 is released from the tension by the dancer roll 222 as a tension applying unit. In this state, the tension applied to the release film 40 is only the tension between the clamper 221c and the peeling portion 210. In this state, the peeling operation of the release film 40 is performed in synchronization with the affixing operation of the polarizing film 30, The tension applied to the release film 40 is slight.

For this reason, even if the release film has a large tension applied to the release film by the dancer roll 222 as a tension applying unit, the release film 40 is released from the tension by the dancer roll 222, and the release film is released. The 40 will not have much tension.

Thereby, according to the film member bonding apparatus 1 which concerns on embodiment, when performing the bonding operation of the polarizing film 30, the tension added to the release film 40 can be made small, and, thereby, the release film 40 It is possible to suppress breakage of the release film 40 by rubbing at the folded back portion 211 of the peeling portion 210. In addition, there is also a problem that when the film member affixing device is used for a long time, the folded portion 211 of the peeling portion 210 is also abraded away due to the friction with the release film. According to this, abrasion of the folded back portion 211 can also be suppressed.

Further, since the folded back portion 211 of the peeling portion 210 is a corner (in this case, a wedge shape), the peeling operation (peeling operation of the release film 40) when peeling the release film 40 from the polarizing film 30 is assured. It can be carried out. In particular, the peeling operation of the release film 40 can be performed more reliably than in the case where the folded back portion 211 of the peeling portion 210 is, for example, a roll. That is, when the release film 40 is peeled off from the polarizing film 30 when the folded portion 211 is a roll, the polarizing film 30 is wound on the roll together with the release film 40, and a failure occurs such that the peeling operation can not be performed reliably. There is a case. At this time, if the diameter of the roll is large, occurrence of such a defect becomes more remarkable.

In the film member bonding apparatus 1 which concerns on embodiment, in order to eliminate the above-mentioned malfunction, the return part 211 of the peeling part 210 is made into the corner part. As a result, the above-mentioned problems can be eliminated, and a reliable peeling operation becomes possible. However, there is a problem that the release film 40 is easily rubbed and the release film 40 is easily broken because the folded portion 211 of the peeling portion 210 is a corner portion. The film member attaching apparatus 1 according to the embodiment Such a problem can be solved by providing the sticking / peeling synchronization mechanism portion 221 in the case of FIG. Further, the problem that the folded portion 211 is easily worn away by the release film 40 being rubbed by the folded portion 211 of the peeling portion 210 can also be solved.

In addition, when performing the cueing of the polarizing film 30, the sticking / peeling synchronization mechanism part 221 does not function, but when performing the cueing of the polarizing film 30, it is necessary for performing the cueing operation of the polarizing film 30. Since only the release film 40 needs to be advanced, the amount of advancement of the release film 40 is small. For this reason, the load applied to the release film 40 can be reduced, and there is little possibility that the release film may be damaged or the folded portion 211 may be abraded away. In addition, since the release film 40 is clamped by the feeder 225 when the head of the polarizing film 30 is positioned, the tension by the tension applying portion (dancer roll 222) added to the release film 40 is also in this case. It has been released. This also makes it possible to reduce the load applied to the release film 40 when the polarizing film 30 is moved out.

On the other hand, when the polarizing film 30 is attached, the advancing amount of the release film 40 is large, and the release film is peeled off in a state where the leading end 30a of the polarizing film 30 is held by the pressing roll 240. The load on 40 increases. In particular, when the size of the polarizing film 30 (size along the moving direction) is large, the advancing amount of the release film 40 increases, and the load applied to the releasing film 40 becomes larger. In such a case, by providing the sticking / peeling synchronization mechanism portion 221, the tension applied to the release film 40 can be reduced, and the load applied to the release film 40 can be reduced. Thereby, breakage of the release film 40 can be suppressed. In addition, abrasion of the folded back portion 211 can be suppressed.

By the way, when the film member attaching operation as shown in FIG. 5C is finished, the table 100 returns to the initial position, but when the table 100 returns to the initial position, the clamp of the release film 40 by the clamper 221c Release Then, when the table 100 is further moved in the direction of the arrow x 'from the state shown in FIG. 5C, the table 100 returns to the position of FIG. 4A (the same position as the initial state). Thereby, the affixing process of the polarizing film 30 (the first polarizing film 30) to the glass substrate 10 (the first glass substrate 10) is completed, and subsequently, to the next glass substrate (referred to as the second glass substrate 10). A step of attaching a polarizing film (second polarizing film 30) is performed.

In order to perform the step of attaching the second polarizing film 30 to the second glass substrate 10, the first glass substrate 10 for which the step of attaching the first polarizing film 30 is finished is removed from the table 100, and The glass substrate 10 is placed, and the processes of FIG. 4A to FIG. 4C and FIG. 5A to FIG. 5C are performed. By repeating such a process, a polarizing film can be sequentially attached to each glass substrate.

As explained above, according to the film member affixing device 1 according to the embodiment, when the affixing operation of the polarizing film 30 is performed, the affixing operation of the polarizing film 30 by the affixing / peeling synchronization mechanism portion 221 And the release film 40 is peeled off.

Therefore, when the polarizing film 30 is attached, the tension applied to the release film 40 can be reduced, whereby the release film 40 is rubbed by the folded portion 211 of the peeling portion 210, Damage to the release film 40 can be suppressed. In addition, abrasion of the folded portion 211 can be suppressed. In addition, since the folded back portion 211 of the peeling portion 210 is a corner portion, the peeling operation of the release film 40 can be reliably performed.

In addition, on the front side of the peeling portion 210, a guide member 230 for guiding the traveling of the polarizing film 30 is provided. Since non-adhesive surface processing is applied to the guide surface 231 of the guide member 230, the adhesion surface of the polarizing film 30 can be prevented from adhering to the guide surface 231 of the guide member 230. It can be made to advance smoothly on the guide surface 231 of the guide member 230.

Further, since the guide member tip end portion 232 is an edge, the guide member 230 can make the distance between the guide member tip end portion 232 and the attachment start end 10 a of the glass substrate 10 as narrow as possible. The level difference between the guide member tip end portion 232 and the adhesion start end 10 a of the glass substrate 10 can be made as small as possible.

Thereby, the distance until the leading end 30a of the polarizing film 30 reaches the attachment start end 10a of the glass substrate 10 can be shortened, and the self-weight is caused by the time the polarization film 30 reaches the attachment start end 10a. It can prevent that it bends. As a result, the leading end 30 a of the polarizing film 30 traveling on the guide surface 231 can be made to reach the bonding start end 10 a of the glass substrate 10 with high accuracy.

Further, the guide member 230 is formed of metal such as stainless steel, and the guide surface 231 of the guide member 230 is subjected to electroconductive and non-adhesive surface processing, and the guide surface 231 is electrically Is grounded (earthed). Therefore, even when static electricity is charged on the polarizing film 30, the static electricity charged on the polarizing film 30 can be removed. In this respect, the guide member 230 can be said to be a static electricity removing member. As described above, since the guide member 230 is the static electricity removing member, dust and dirt do not easily adhere to the polarizing film 30, and the polarizing film 30 is attached to the glass substrate 10 as the affixing member. At the time, the film member can be attached to the glass substrate 10 with high accuracy. In addition, when the glass substrate 10 to which the polarizing film 30 is attached is sent to the next process, it is possible to prevent the static electricity from being sent to the next process while being charged.

In addition, when performing the indexing operation of the polarizing film 30, the table 100 is temporarily retracted below the reference position h in the vertical direction, and immediately after the indexing operation of the first polarizing film 30 is finished. The table 100 is returned to the vertical direction reference position h at substantially the same timing as the timing at which the first polarizing film 30 ends the cueing operation. Thereby, it is possible to cue the polarizing film 30 with high accuracy.

Further, the presser roll 240 is configured by a small diameter first presser roll 241 located on the side contacting the polarizing film 30, and a large diameter second presser roll 242 for backing up the pressing force of the first presser roll 241. ing.

Since the pressing roll 240 has such a configuration, the first pressing roll 241 has a small diameter even if the distance between the guide member tip end portion 232 and the attachment start end 10 a of the glass substrate 10 is narrow, the guide member The polarizing film 30 can be pressed without coming into contact with 230. Further, since the second pressing roll 242 also serves to prevent the warping of the first pressing roll 241, the polarizing film 30 can be applied with a uniform pressing force over the entire width direction (direction along the rotation axis of the pressing roll 240). We can hold down surely.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. For example, a modified implementation as shown below is also possible.

(1) In the above embodiment, although the case where the diameter of the first pressing roll is about 10 mm is exemplified, the diameter of the first pressing roll does not necessarily have to be about 10 mm, and the guide member tip portion 232 and the glass substrate The diameter can be optimized according to the distance d to the pasting start end 10a 10 and the like.

(2) In the above embodiment, the case where the guide member 230 adopts a triangular block shape is exemplified, but the shape of the guide member 230 is not limited, and the release film 40 is peeled off. The front end portion 30 a of the polarizing film 30 may be made to advance toward the bonding start end 10 a of the glass substrate 10 placed on the table 100, and may be, for example, a plate shape.

FIG. 6 is a figure shown in order to demonstrate the case where the guide member 230 is made into plate shape. 6 corresponds to FIG. 3 (a), except that the guide member 230 is plate-shaped, and the other components are the same as those in FIG. The same symbol is attached. Even when the guide member 230 has a plate shape, it is preferable that the guide member distal end portion 232 has an edge as shown in FIG.

By doing so, the leading end 30a of the polarizing film 30 can be made to reach the bonding start end 10a of the glass substrate 10 with high accuracy. Even when the guide member 230 has a plate shape, the guide surface 231 of the plate-like guide member 230 is subjected to non-adhesive surface processing having conductivity, and the guide surface 231 is electrically Is grounded. Thereby, the same countermeasure against static electricity as the guide member 230 used in the film member bonding apparatus 1 according to the embodiment can be achieved. Further, the guide member 230 may not be a plate having a thickness as shown in FIG. 6, and a thin plate member having a plate thickness of, for example, about 1 mm to several mm may be used. The member tip end portion 232 naturally becomes an edge.

(3) In the above embodiment, when performing the attaching operation of the polarizing film 30 shown in FIG. 4, the film member supply mechanism unit 200 is fixed, and the case where the table 100 is reciprocated along the x axis is illustrated. However, the table 100 may be fixed and the film member supply mechanism 200 may be reciprocated.

Specifically, the position of the table 100 is fixed in a state where the glass substrate 10 is placed on the table 100 as in the initial state of FIG. 4A. Then, the film member supply mechanism unit 200 is moved in the direction of the arrow x 'in FIG. 4 (in the left direction in the figure), and the state is substantially the same as FIG. Perform the process of FIG. 5 (c). In this case, when the polarizing film 30 is attached, the film member supply mechanism 200 is moved in the arrow x direction with the table 100 fixed. Also by performing such an operation, it is possible to stick the polarizing film 30 to the glass substrate 10 as in the above embodiment.

Further, the attaching operation of the polarizing film 30 may be performed by combining the operation of reciprocating the table 100 along the x-axis and the operation of reciprocating the film member supply mechanism 200 along the x-axis. Also by performing such an operation, it is possible to stick the polarizing film 30 to the glass substrate 10 as in the above embodiment. In this case, it is also possible to obtain an effect of speeding up the attaching operation.

Even when the film member supply mechanism 200 is reciprocated while the table 100 is fixed, the affixing / peeling synchronization mechanism 221 can function when performing the affixing operation of the polarizing film 30. . In this case, when the polarizing film 30 is attached, the film member supply mechanism 200 moves in the direction of the arrow x. At this time, the first folding roll 221a also moves along with the movement of the film member supply mechanism 200. However, the position of the second folding roll 221b provided on the side of the table 100 does not change.

Therefore, the release film 40 is pulled by the first folding roll 221a with the movement of the film member supply mechanism 200, and the polarizing film 30 advances while the release film 40 is peeled off from the polarizing film 30. Also in this case, in a state where the release film 40 is clamped by the clamper 221 cc, the release operation of the release film 40 is performed in active synchronization with the affixing operation of the polarizing film 30. When the film 40 is peeled off, the tension applied to the release film can be reduced.

Also, when the operation to reciprocate the table 100 along the x axis and the operation to reciprocate the film member supply mechanism 200 along the x axis are used together, the sticking / peeling synchronization mechanism is functioned be able to.

(4) As another example of control on the feeder 225 by the control device 300, the position of the rear end 30b of the polarizing film 30 is monitored, and the position of the rear end 30b of the polarizing film 30 is behind the polarizing film 30. The release film 40 may be controlled to advance in the release film advancing direction until the end 30 b moves by a target movement amount (referred to as a target movement amount). Thus, the leading end 30 a of the polarizing film 30 can reach the pressing point P of the first pressing roll 241 with high accuracy. Such control is performed in advance by using as a target movement amount whether the front end 30a of the polarizing film 30 reaches the pressing point P of the first pressing roll 241 when the rear end 30b of the polarizing film 30 is moved from a predetermined position. It can be implemented by asking for it.

(5) In the said embodiment, although the case where the corner | angular part of a front-end | tip folding part was wedge shape (sharp angle) was illustrated in a peeling part, it is not limited to being wedge shape (sharp angle), For example, the corner may be substantially at a right angle.

(6) In the embodiment described above, when performing the indexing operation of the polarizing film 30, the operation of lowering (retracting) the table 100 retracts the table 100 when it is moved to the position of FIG. However, the table 100 may be moved to the position shown in FIG. 4 (b) with the table 100 lowered (retracted) at the stage of the initial state shown in FIG. 4 (a).

(7) In the above embodiment, the glass substrate used for one of the two glass substrates used in the liquid crystal panel (the glass substrate provided on the front side of the liquid crystal layer and the glass substrate provided on the back side) Although the case where the polarizing film is attached is described, the case where the polarizing film is attached to the glass substrate used on the other side can be substantially the same.

(8) In the above embodiment, the film member is a polarizing film used for a liquid crystal panel, and the affixing member is a glass substrate used for a liquid crystal panel, and the polarizing film is attached to the glass substrate Although the film member affixing device for this purpose has been described, the film member affixing device is not limited to the film member affixing device described in the above embodiment, and an apparatus for affixing the film member to the affixing member It is widely applicable.

(9) In the above embodiment, the film member has a rectangular shape, but the shape of the film member is not limited to a rectangular shape, and may be a square, or may be a rectangle and a square (rectangle) is not.

(10) In the above embodiment, although the first presser roll 241 and the second presser roll 242 have the first presser roll 241 having a smaller diameter than the second presser roll 242, the second presser roll 242 is used as a backup roll. As long as the function is possible, the first holding roll 241 and the second holding roll 242 may have the same diameter.

(11) In the above embodiment, the pressure roller 240 has a configuration in which two pressure rollers are stacked in two stages. However, the present invention is not limited to two, and three or more pressure rollers may be overlapped. It is good also as composition.

(12) In the above embodiment, the guide surface 231 of the guide member 230 is electrically grounded via the guide member 230, the support member (not shown), and the stage 50. A lead wire for grounding may be connected to the guide surface 231 or the guide member 230 to directly ground the guide member.

(13) In the said embodiment, although it was set as the polarizing film used for a liquid crystal panel as a film member, this invention is not limited to this. For example, the film member may be a protective film used for a liquid crystal panel, or may be an electromagnetic wave shielding film used for an electronic device. Moreover, in the said embodiment, although the to-be-adhered member was used as the glass substrate used for a liquid crystal panel, this invention is not limited to this. For example, it may be a synthetic resin substrate (including a synthetic resin film) used for a liquid crystal panel. Further, it may be a glass substrate or a synthetic resin substrate (including a synthetic resin film) used for other than the liquid crystal panel (for example, an organic EL panel or other display). Moreover, the electronic circuit board used for things other than a display (for example, an electronic device etc.) may be used.

(14) In the above embodiment, as a process for applying conductive non-adhesive surface processing to the guide surface 231 of the guide member 230, a technology for surface processing called "Toshikal (registered trademark) S coating processing" To adopt such a coating process, Toshikal (registered trademark) S, UNA-300 series (UNA-310-X10), UNA-800 series, TS-1000 series, TS-1080 series, TS-1310 series Although it is possible to preferably use ones, the present invention is not limited thereto. The film thickness of the coating film of Toshikal (registered trademark) S is, for example, preferably 1 μm to 200 μm, and preferably 3 μm to 150 μm, but the present invention is not limited to this. . Moreover, before forming the coating film of Toshikal (registered trademark) S, a concavo-convex structure may be formed on the guide surface 231 of the guide member 230. The average surface roughness of the concavo-convex structure in this case is preferably 2 μm to 15 μm, but the present invention is not limited to this.

(15) In the above embodiment, when the affixing / peeling synchronization mechanism section 221 actively synchronizes with the affixing operation of the polarizing film 30 to perform the peeling operation of the release film, the affixing / peeling synchronization mechanism Although the clamper 221c is provided in the part 221 and the release film 40 is clamped by the clamper 221c, the clamper 226 of the feeder 225 is only used for the indexing operation of the polarizing film 30 without providing the clamper 221c. Instead, it is also possible to use for paste / peel synchronization operation in the paste / peel synchronization mechanism unit 221. In this case, the release film 40 is clamped by the clamper 226 of the feeder 225 when performing the sticking / peeling synchronization operation. Even in this case, the release film 40 is released from the tension by the dancer roll 222 as a tension applying unit, and the tension applied to the release film 40 can be reduced.

DESCRIPTION OF SYMBOLS 1 ... Film member affixing apparatus, 10 ... Glass substrate (member to be affixed), 10a ... Affixing start end, 30 ... Polarization film (film member), 30a ... Tip part (progress Direction end portion), 30b ··· Rear end portion (advancing direction rear end portion), 31 ··· Adhesive, 40 · · · Release film, 50 · · · Stage, 60 · · · Guide rail, 100 · · · Table 110 Slider 120 Table body 200 Film member supply mechanism 210 Peeling portion 211 Folded portion 220 Release film advancing mechanism , 221: peeling / pasting synchronization mechanism, 221a: first folding roll, 221b: second folding roll, 221c: clamper, 222: dancer roll ( Position application portion, 225: feeder, 226: clamper (a clamper of feeder 225) 230: guide member 231: guide surface 232: guide member tip (tip of guide member) Part), 240: holding roll, 241: first holding roll, 242: second holding roll, 250: camera, 300: control device, C1, C2,. ... Vertical reference position, P ... Press point

Claims

One surface is an adhesive surface, and the film member is advanced while peeling off the release film from the film member to which the release film is peelably attached to the adhesive surface, and the release film is peeled off After performing the "heading operation of the film member" for causing the forward end of the film member to reach the attachment start end of the affixing member, the forward end of the film member is the affixing member A film member pasting the film member pasting the film member onto the member to be affixed while peeling off the release film starting from the pasting start end in a state of being pressed to the pasting start end of the film member pasting the film member Device, and
A table on which the affixing member is placed;
A film member supply mechanism for supplying the film member;
A film member indexing control function for controlling the film member feeding mechanism unit to perform the film member indexing operation, and the film member feeding mechanism unit to perform the film member attaching operation; A control device having a sticking control function of relatively moving at least one of the tables;
Equipped with
The film member supply mechanism unit
It has a folded back portion that folds back the release film in a direction substantially opposite to the traveling direction of the film member, and in a state where the release film is folded back at the folded back portion, at least one of the film member supply mechanism and the table is relatively A peeling section which peels the release film from the film member by moving to the
A release film advancing mechanism that advances the release film folded back at the folded back portion;
Have
The release film advancing mechanism unit
A tension applying section for applying a tension along the direction in which the release film advances to the release film that has been folded back;
The release film is disposed between the tension applying portion and the peeling portion, and the release film is clamped at a predetermined position between the tension applying portion and the peeling portion when performing the “pasting operation of the film member”. Between the clamped position and the peeling portion, the sticking / peeling synchronization mechanism portion performing an operation of peeling the release film from the film member in active synchronization with the “sticking operation of the film member”. When,
The film member affixing device characterized by being provided.
In the film member affixing device according to claim 1,
The pasting / peeling synchronization mechanism unit
A clamper provided at a predetermined position between the tension applying unit and the peeling unit and clamping the release film at a predetermined position between the tension applying unit and the peeling unit;
The release film is located between the clamper and the peeling portion and attached to the side of the film member supply mechanism, and the release film peeled off at the peeling portion is substantially in the same direction as the traveling direction of the film member. The first folding roll that is folded back to advance
The release film is located between the clamper and the first folding roll and attached to the side of the table, and the release film folded back by the first folding roll is in a direction substantially opposite to the traveling direction of the film member. A second folding roll which is folded back to advance
An apparatus for attaching a film member, comprising:
In the film member affixing device according to claim 1 or 2,
The table is provided with a lift mechanism for moving the table up and down.
When the vertical position of the table at the time of performing the “film member pasting operation” is the vertical reference position,
The control device controls the elevating mechanism to lower the table temporarily below the reference position in the vertical direction when performing the "heading operation of the film member", thereby controlling the film The elevating operation is performed so as to raise the table to the vertical reference position at a predetermined timing before the "film member indexing operation" is performed by the member indexing control function and the film member attaching operation is started. A film member affixing device characterized by further having a table elevation control function for controlling a mechanism.
In the film member affixing device according to any one of claims 1 to 3,
The film member attaching apparatus according to claim 1, wherein the folded back portion of the peeling portion is a corner portion.
In the film member affixing device according to any one of claims 1 to 4,
A film member affixing device characterized in that a feeder for performing the "heading operation of film member" is provided between the affixing / peeling synchronization mechanism portion and the tension applying portion.
In the film member affixing device according to claim 5,
The film member supply mechanism further includes a camera installed so as to be able to image a predetermined portion of the film member,
The controller is
It further has a feeder control function of controlling the feeder so as to monitor the position of the predetermined portion of the film member based on shooting data from the camera and perform the "heading operation of the film member". Film member affixing device to be.
In the film member affixing device according to claim 6,
The film member affixing device according to claim 1, wherein the predetermined portion of the film member is a rear end portion in the traveling direction of the film member.
In the film member affixing device according to any one of claims 1 to 7,
The film member supply mechanism unit
There is a guide surface for guiding the progress of the film member from which the release film has been peeled off by the peeling portion, and the guide surface further has a guide member having a non-adhesive surface treatment to prevent adhesion of the adhesive. ,
In the guide member, the tip end portion of the guide member is an edge, the guide surface forms an acute angle with the affixing member, and the affixing member of the affixing member is an extension of the guide surface. A film member affixing device characterized in that the affixing start end is positioned.
In the film member affixing device according to claim 8,
The said guide surface is electrically conductive and electrically grounded, The film member affixing device characterized by the above-mentioned.
In the film member affixing device according to any one of claims 1 to 9,
The film member supply mechanism unit
It further has a pressing roll for pressing the forward end of the film member in the advancing direction to the affixing start end of the affixing member,
The holding roll has a configuration in which a plurality of holding rolls are stacked in a plurality of stages, and a rotation axis of each of the plurality of holding rolls is a direction along a side of a leading end of the film member. The film member affixing device characterized in that it is installed as follows.
In the film member affixing device according to claim 10,
Among the plurality of pressing rolls, the diameter of the pressing roll positioned on the side in contact with the film member is set to be smaller than the diameter of the other pressing rolls.
In the film member affixing device according to any one of claims 1 to 11,
The film applying device according to claim 1, wherein the tension applying unit is a dancer roll.
In the film member affixing device according to any one of claims 1 to 12,
The film member is in the form of a long sheet, and the release film is left for each predetermined length along the longitudinal direction of the long sheet-like film member, and the release film is released by the peeling portion. A film member affixing device characterized by being separated into individualized film members, and the individualized film members being adhered to the member to be adhered.
In the film member affixing device according to any one of claims 1 to 13,
The film member is a polarizing film or a protective film used for a liquid crystal panel or an electromagnetic wave shielding film used for an electronic device,
The affixing member is a glass substrate or a synthetic resin substrate used for the liquid crystal panel, or an electronic circuit substrate used for an electronic device.
Film member affixing device characterized in that.
One surface is an adhesive surface, and the film member is advanced while peeling off the release film from the film member to which the release film is peelably attached to the adhesive surface, and the release film is peeled off After performing the "heading operation of the film member" for causing the forward end of the film member to reach the attachment start end of the affixing member, the forward end of the film member is the affixing member Bonding the film member to the member to be bonded while peeling off the release film starting from the bonding start end in a state of being pressed to the bonding start end of the film member It is a film member affixing method which an apparatus performs, and
The film member affixing device is
A table on which the affixing member is placed;
A film member supply mechanism for supplying the film member;
A film member indexing control function for controlling the film member feeding mechanism unit to perform the film member indexing operation, and the film member feeding mechanism unit to perform the film member attaching operation; A control device having a sticking control function of relatively moving at least one of the tables;
Equipped with
The film member supply mechanism unit
It has a folded back portion that folds the release film back in a direction substantially opposite to the traveling direction of the film member, and in a state where the release film is folded back at the folded portion, at least one of the film member supply mechanism and the table is relatively A peeling section which peels the release film from the film member by moving;
A release film advancing mechanism that advances the release film folded back at the folded back portion;
Have
The release film advancing mechanism unit
A tension applying section for applying a tension along the direction in which the release film advances to the release film that has been folded back;
The release film is disposed between the tension applying portion and the peeling portion, and the release film is clamped at a predetermined position between the tension applying portion and the peeling portion when performing the “pasting operation of the film member”. Between the clamped position and the peeling portion, the sticking / peeling synchronization mechanism portion performing an operation of peeling the release film from the film member in active synchronization with the “sticking operation of the film member”. When,
Is provided,
When performing the above-mentioned "film member pasting operation",
The release film is clamped at a predetermined position between the tension applying portion and the peeling portion, and actively synchronized with the “pasting operation of the film member” between the clamped position and the peeling portion. A film member attaching method characterized by performing an operation of peeling the release film from the film member.