JP2007160697A - Method and device for sticking film - Google Patents

Method and device for sticking film Download PDF

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Publication number
JP2007160697A
JP2007160697A JP2005359730A JP2005359730A JP2007160697A JP 2007160697 A JP2007160697 A JP 2007160697A JP 2005359730 A JP2005359730 A JP 2005359730A JP 2005359730 A JP2005359730 A JP 2005359730A JP 2007160697 A JP2007160697 A JP 2007160697A
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Japan
Prior art keywords
film
tip
substrate
suction plate
protective film
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Granted
Application number
JP2005359730A
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Japanese (ja)
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JP4780559B2 (en
Inventor
Shiyuugo Imaoka
Takeshi Ishida
Isao Takesue
修剛 今岡
功 武末
剛 石田
Original Assignee
Hitachi Plant Technologies Ltd
Sanki Technos:Kk
株式会社サンキテクノス
株式会社日立プラントテクノロジー
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Priority to JP2005359730A priority Critical patent/JP4780559B2/en
Publication of JP2007160697A publication Critical patent/JP2007160697A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/20Filters
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors

Abstract

A film is not easily dropped onto a substrate without requiring a delicate and complicated control of the adsorption holding force, and the film is simply and reliably attached to the substrate.
SOLUTION: A film 1 is sucked and held by a suction plate 33 and a tip suction plate 34 on the opposite side of the protective film 7 above the substrate 2, and an adhesive tape 55 is attached to the protective film 7 to adhere the film. The tip of the protective film 7 is peeled off by reversing the tape 55 at the tip of the film 1, the tip suction plate 34 is detached from the tip of the film, and the tip of the protective film is peeled off from the tip of the substrate 2. The leading end of the film is aligned and pressed by the pressure roller 46, the suction holding of the film by the suction plate 33 is released, and the protective film 7 is moved by moving the adhesive tape 55 while moving the substrate 2 starting from the leading end side of the film 1. The film 1 is supplied to the substrate 2, and the film 1 is attached to the substrate 2 with the pressure roller 46.
[Selection] Figure 1

Description

  The present invention relates to a film sticking method and an apparatus for sticking a sheet-like film having a size suitable for a substrate to be attached to the substrate.

  In the manufacturing process of liquid crystal displays and plasma displays, various functions such as improving contrast and color reproducibility, cutting electromagnetic waves and infrared rays emitted from the panel, preventing peripheral images from being reflected on the screen, and preventing damage to the panel Good image quality by pasting a functional film (hereinafter abbreviated as “film”) having a glass substrate onto the surface of a liquid crystal display panel or plasma display panel (hereinafter abbreviated as “substrate”) in which two glass plates are pasted. Is realized.

  For attaching the film, a film attaching apparatus for supplying and attaching a sheet-like film having a display surface of the substrate facing upward and having a size suitable for the substrate to be attached from above the substrate is used.

  Since the film is coated with an adhesive material, the surface of the adhesive material is covered with a protective film so as to prevent adhesion of foreign substances before use, to prevent deformation of the adhesive material, or to be able to overlap the films.

  Such a film is set (attached) to the adsorption holding table with the adhesive protective film facing upward, peeled off the adhesive protective film immediately before application, and inverted to hold the adsorption holding table so that the adhesive material of the film is exposed. Place above.

  The film is attached by tilting one end to be brought closer to the substrate, applying the pressing tip with a pressure roll, and moving the substrate in the direction of pulling out the film.

  At this time, the film is slid on the suction holding table surface while being sucked and held on the suction holding table surface so that the film does not fall onto the upper surface of the substrate before being sequentially attached by the pressure roll.

  There exists what was described in the following patent document as what shows such a technique.

JP 2003-276091 A

  In order to attach the film to the substrate, it is necessary to hold the film. However, when the pressure-sensitive adhesive surface is downward, the pressure-sensitive adhesive surface cannot be supported.

  Since the film is stuck by sandwiching the held film and the substrate with a pressure roll and rotating the pressure roll, the film needs to slide on the surface of the suction member in the suction holding state and the suction holding state.

  When a high vacuum is used for the film adsorbing / holding of the adsorbing member, the adsorbing / holding force is secured, but the resistance force when sliding on the adsorbing member surface is increased, and the film surface is scratched. On the other hand, if a low vacuum is used to hold and hold the film, the resistance is reduced and the scratches on the film surface are reduced. However, the low film holding and holding force increases the risk of the film falling to the substrate surface. .

  In addition, when the attachment of the film is started, the adsorption member surface is moved, so that the adsorption area decreases as the end of attachment is approached, and the film may be peeled off from the adsorption member surface and fall to the substrate surface. And when a film falls, it contacts a board | substrate and there exists a problem that a bubble mixes between a film and a board | substrate.

  Furthermore, minute abrasion powder is generated by rubbing the film and the adsorbing member, falls on the substrate surface, and remains between the film and the substrate. In this case, shading or scattering of the light transmitted by the abrasion powder or surrounding bubbles is caused, and a desired image quality cannot be obtained, which causes a decrease in image quality and a decrease in yield.

  Accordingly, since these problems necessitate delicate and complicated control of the adsorption holding force of the film, it is difficult to attach the film efficiently and in a good state.

  Therefore, the object of the present invention is that the film does not fall on the substrate even if a delicate and complicated control of the adsorption holding force is not required in the pasting of the film, and the film is easily and reliably stuck to the substrate. It is in providing the film sticking method and apparatus which can be performed.

  Another object of the present invention is to provide a film sticking method and an apparatus therefor in which a minute wear powder is not generated and does not fall on the substrate surface when the film is stuck, and the yield is not lowered. is there.

  The film sticking method of the present invention that achieves the above object is characterized in that a substrate and a sheet-like film having a size suitable for the substrate are peeled off and a protective film provided on the adhesive surface of the film is peeled off and attached to the substrate. In the film sticking method, the film is protected with a tip suction plate corresponding to a tip of one side of the film and a suction plate corresponding to a region of the film other than the tip of the one side above a horizontally held substrate. Adsorbed and held on the side opposite to the film, and affixed to the protective film of the film held on the adsorbing plate and the tip adsorbing plate is affixed with an adhesive tape arranged so as to be orthogonal to the tip of one side of the film, The adhesive tape is moved so as to move backward at the one end of the film, and the leading end of the protective film on the one end side of the film is moved. Release the suction holding of the tip suction plate from the tip of one side of the film and release the tip suction plate from the tip of one side of the film, corresponding to the tip of one side of the film held horizontally Align the tip of one side of the film from which the tip of the protective film has been peeled off with the part to be pressed, and press the part with a pressure roller, release the suction and holding of the film by the suction plate, and reverse the movement of the adhesive tape The film is supplied onto the substrate and the protective film is peeled off, and the substrate is moved horizontally starting from the one end of the side of the film while the protective film is peeled off. There is to paste.

  Further, the film sticking device of the present invention that achieves the above object is characterized in that a substrate and a sheet-like film having a size suitable for the substrate are peeled off from the protective film provided on the adhesive surface of the film. In a film sticking apparatus for sticking to a substrate, a substrate holding and moving mechanism for holding the substrate horizontally and moving one side of the substrate at the top, and a surface of the substrate holding and moving mechanism opposite to the protective film A tip suction plate and a suction plate for sucking and holding the one side tip of the film corresponding to one side of the substrate on the side, and a region of the film other than the tip of the side, and the tip suction plate and the suction plate. A suction plate tilting mechanism that tilts the tip suction plate so as to approach one side of the substrate, and the film tilted by the suction plate tilting mechanism. An adhesive tape disposed on the protective film so as to be orthogonal to the one side tip of the film, and the adhesive tape is moved to the one side tip of the film to adhere to the protective film and the one end of the film An adhesive tape moving mechanism that reversely moves on the side of the film and peels the protective film from the side of the edge of the film; and the tip adsorbing plate in a state where the adhesive tape peels the protective film from the edge of the side of the film A suction end releasing plate releasing means for releasing the suction holding of the film and releasing from the one end of the film; and the adhesive tape peels off the protective film from the one end of the film. A suction plate releasing means for releasing the suction holding of the film, and the tip suction plate is detached from the tip of one side of the film. A pressure mechanism that pressurizes a portion of the substrate that has been held horizontally with the position corresponding to the position corresponding to the one end of the film with a pressure roller. By feeding the film onto the substrate in the reverse direction of the movement of the adhesive tape and peeling the protective film, the substrate is moved horizontally with the substrate holding and moving mechanism starting from one side of the film at the front side. The protective film is peeled off and the film is pressed onto the substrate by a pressure roller by the pressure mechanism.

  According to the present invention, when the film is attached to the substrate, the holding of the film is transferred from the suction plate to the adhesive tape, and the adhesive tape transports the film to the substrate. In addition, air bubbles are not generated around the abrasion powder, and the film can be attached to the substrate with a high yield, and it does not require delicate and complicated control of the suction holding force in the suction plate, making it simple and reliable. A film can be attached to the substrate.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. In all drawings, the same reference numerals are assigned to the same items.

  FIG. 1 is a schematic view of a main part of an optical film sticking device constructed by applying the present invention.

  An optical film sticking device is a device for sticking an optical film (film) 1 to an image display surface of a display panel (substrate) 2 and is roughly divided into a panel moving mechanism (substrate holding / moving mechanism), a suction plate, a tip suction plate, and a suction. An optical film adsorbing and conveying mechanism including a plate tilting mechanism, a tip adsorbing plate releasing / detaching means, and an adsorbing plate releasing means, an adhesive material protective film peeling mechanism including an adhesive tape and an adhesive tape moving mechanism, a pressure roll and a pressure mechanism. A pressure roll mechanism is used. Hereinafter, the structure of each part is demonstrated in order.

  Here, the type, structure, and thickness of the display panel 2 of the optical film pasting device are not particularly limited. For example, a PDP display panel that displays an image in a PDP (plasma display) or a filter unit independent of the display panel. It can be used for the production of flat glass substrates and LCD (liquid crystal display) display panels.

  First, the optical film 1 will be described. The optical film 1 has various functions such as improving contrast of light and darkness and color reproducibility, blocking electromagnetic waves and near infrared rays emitted from the panel, preventing reflection of peripheral images on the screen, and preventing damage to the panel.

  Such an optical film 1 includes an antireflection film 3, a colored film 4, and an electromagnetic wave shielding film 5, as shown in FIG. Moreover, the adhesive material 6 for affixing on the display panel 2 is apply | coated to the electromagnetic wave shielding film 5 surface, and also the protective film 7 for protecting the adhesive material 6 is affixed, and it has moderate rigidity. The thickness, material, order of combination, etc. of each layer film 3-5 are not particularly limited.

  When the optical film 1 configured in this manner is attached to the display panel 2, the protective film 7 is peeled off to expose the adhesive material 6. And it sticks by aligning the optical film 1 and the display panel 2 correctly, and making the adhesive material 6 contact the display panel 2. FIG.

  First, the panel moving mechanism (substrate holding / moving mechanism) will be described.

  As shown in FIG. 1, the panel moving mechanism includes a straight guide base 8, an XYZθ table 9, and a conveyor 10. The straight guide base 8 serves as a base of the optical film sticking apparatus and has a flat plate shape. On the straight guide base 8, a straight guide 12 extending left and right in FIG. 1 is provided, on which an XYZθ table 9 and a conveyor 10 are arranged.

  The support plate 13 disposed on the lowermost surface of the XYZθ table 9 is provided with a servo motor 14, and the support plate 13 rotates a pinion gear 15 provided on the servo motor shaft through a rack gear (not shown). The linear guide 12 can be moved left and right in FIG. 1, and the stop position after the movement can be accurately reproduced.

  The support plate 13 is provided with a linear guide 16 and a plate 17 extending in the left and right directions in FIG. 1, so that the plate 17 can be finely adjusted to the left and right in FIG. 1 by a pulse motor (not shown) provided in the support plate 13. It has become. Further, the plate 17 is provided with a linear guide 18 extending in a direction perpendicular to the paper surface of FIG. 1 orthogonal to the moving direction of the support plate 13 and a plate 19 thereon, and a pulse motor (not shown) provided on the plate 17. 1), the plate 19 can be finely adjusted in the direction perpendicular to the paper surface of FIG.

  Further, the plate 19 is provided with a rotary bearing 20 and a plate 21, and the plate 21 can be finely adjusted in the rotational direction in a horizontal state by a pulse motor (not shown) provided on the plate 19.

  The plate 21 is provided with an elevating mechanism for moving the plate 22 up and down and a linear guide 23 extending left and right in FIG.

  The lifting mechanism includes a linear guide 23 provided on the plate 21, a plate 24 coupled to the linear guide 23, a lifting guide 25 provided on the plate 24, a cam follower 26 provided on the plate 22 and following the lifting guide 25, and the plate 21. And a cylinder 27 for moving the plate 24.

  When the plate 24 is moved by the cylinder 27, the lifting guide 25 provided on the plate 24 is also moved. At this time, the cam follower 26 provided on the plate 22 moves up and down in FIG. 1 due to the inclination of the lifting guide 25, and can move up and down while the plate 22 is guided by the linear guide 23.

  The plate 22 is provided with a conveyor 10 that conveys a panel fixing jig 11 for fixing and mounting the display panel 2 in a direction perpendicular to the paper surface of FIG. The conveyor 10 receives the panel conveying jig 11 with the display panel 2 fixedly attached thereto by the conveying roller 28, and after moving to a predetermined position, the panel conveying jig 11 can be fixed from four directions by a fixing mechanism (not shown). ing.

  When the display panel 2 is mounted on the upper surface side of the panel transport jig 11, the panel display printed circuit board is not mounted so that the panel transport jig 11 can be mounted even when the panel display printed circuit board is mounted on the rear surface side of the display panel 2. A panel support member is provided at the position. Further, the positioning guide 29 provided on the panel transport jig 11 is detachably provided at a desired position.

  By configuring the positioning guide 29 in this way, it becomes possible to deal with the display panel 2 having various shapes and sizes, and the degree of freedom of application of the present optical film sticking apparatus is increased.

  Further, on the way to move the display panel 2 from the position on the right side of FIG. 1 where the panel transport jig 11 to which the display panel 2 is fixedly attached is received by the transport roller 28 to the position on the left side of FIG. A panel cleaner 75 for cleaning the panel surface is provided. The lifting mechanism described above is used to bring the display panel 2 closer to the panel cleaner 75. When the display panel 2 passes the panel cleaner 75, the display panel 2 is lowered. To return to the original position.

  The panel cleaner 75 is a rotating brush system. In FIG. 1, the brush is rotated counterclockwise in the opposite direction to the progress of the display panel 2 from right to left. Powder can be scraped and removed by suction with a dust collector connected to the panel cleaner 75.

  Since the rotating brush used here rubs on the surface of the display panel 2, it is possible to prevent the display panel 2 from being charged by selecting a conductive material. The panel cleaner is not particularly limited to the rotating brush method, and any method can be selected in consideration of the size of dust on the surface of the display panel 2 and the state of adhesion. For example, an adhesive roll method or an ultrasonic dry cleaning method can be selected.

  Next, the optical film adsorption / conveyance mechanism will be described.

  As shown in FIG. 1, the optical film adsorption / conveyance mechanism is disposed on the upper left side of the panel moving mechanism described above.

As shown in FIG. 3A, the optical film suction / conveyance mechanism includes a linear guide base 30, a suction plate support member 32, and a suction plate 33. The straight guide base 30 serves as an upper base frame of the optical filter attaching device. A straight guide 31 is provided under the straight guide base 30, and a suction plate 33 is arranged via a suction plate support member 32 so as to be suspended from the straight guide 31.

  The linear guides 31 are provided in two rows so as to extend in a direction perpendicular to the paper surface of FIG. 3 orthogonal to the horizontal movement direction of the panel transport mechanism, and a plate 35 is provided so as to be suspended from the linear guide 31. A ball screw nut 38 of a ball screw 37 supported by the linear guide base 30 is attached to the plate 35. Accordingly, the rotation of a servo motor (not shown) attached to the ball screw 37 allows the plate 35 to move along the linear guide 31 in a direction perpendicular to the paper surface of FIG. Can be accurately reproduced.

The plate 35 is provided with a suction plate support member 32 via a linear guide 36 provided in the left-right direction in FIG. 3 orthogonal to the linear guide 31, and the linear guide is caused by the action of a cylinder 39 provided on the plate 35. It can move in the left-right direction in FIG.

  The suction plate support member 32 is provided so that the elevating cylinders 40 and 41 can freely rotate, and the suction plate 33 is provided on the shaft of the elevating cylinders 40 and 41 so as to freely rotate. 3 constitutes a suction plate tilting mechanism that can lift and lower the suction plate 33 as shown in FIG. 3A or tilt it as shown in FIG.

  One end of the suction plate 33 is connected to an optical film suction fixing blower (not shown) via a suction pipe having an on-off valve, and a suction structure is provided inside the suction plate 33. The optical film 1 placed on the optical film table 42 can be sucked and held and fixed through a suction hole provided so as to penetrate 33 toward the lower surface.

  The installation position of the optical film table 42 will be described later. In addition, the size of the suction plate 33 is not particularly limited, and by dividing the suction holes according to the suitable size into zones, by selecting a zone, the same suction plate can be adapted to a plurality of optical film sizes. Can do.

  The suction plate 33 is provided with a tip suction plate 34 via a turning shaft 45 on the sticking tip (the tip of one side of the film) of the optical film 1. The tip suction plate 34 has the same suction holding function as the suction plate 33, and is positioned at a position flush with the suction plate 33 when holding the optical film 1 placed on the optical film table 42 by suction. The tip suction plate 34 sucks and holds the tip of the optical film 1 by suction, and the suction plate 33 sucks and holds a region other than the tip of the optical film 1 by suction.

  In addition, as will be described later, when the front end of the optical film 1 is attached to the display panel 2 with the press roll 46 (see FIG. 1) after the protective film attached to the optical film 1 held by suction is peeled off, the press roll 46 is used. As shown in FIG. 3C, the tip suction plate 34 is released from the suction holding by the optical film suction fixing blower by closing an on-off valve provided in the middle of the suction pipe, as shown in FIG. The cylinder (not shown) can be pivoted and retracted about the pivot axis 45 so as to be detached from the optical film 1, and constitutes a tip suction plate releasing / releasing means.

  An adhesive sheet (adhesive member) 43 is embedded on the tip suction plate 34 on the optical film 1 suction surface of the tip suction plate 34. Thereby, the optical film 1 and the adhesive sheet 43 are pressed when the protective film 7 attached to the optical film 1 described later is peeled off, and the optical film 1 is peeled off from the suction surface of the tip suction plate 34. That is, the peeling failure of the protective film 7 can be prevented.

  Further, the alignment mark recognition hole 44 for a CCD camera 47 (see FIG. 1) for recognizing a positioning mark (not shown) provided on the optical film 1 with the optical film 1 sucked and held on the tip suction plate 34. Is provided. Thereby, the position of the optical film 1 in the state of being sucked by the suction plate 33 and the tip suction plate 34 is recognized, and the position of the display panel 2 is adjusted by the XYZθ table 9 of the panel moving mechanism described above, so that the desired position is obtained. The optical film 1 can be attached with high accuracy.

  The suction plate 33 includes suction plate releasing means that can release the suction holding of the optical film 1 by a blower for fixing and holding the optical film that is not shown.

  Next, regarding the adhesive material protective film peeling mechanism, the adhesive tape 55 for peeling off the protective film 7 from the optical film 1 and the adhesive tape moving mechanism will be described with reference to FIG.

The adhesive protective film peeling mechanism includes a linear guide base 48 extending left and right in FIG. 4A parallel to the straight guide 12 extending left and right in FIG. 1 in the panel moving mechanism shown in FIG. A part 50 and an optical film receiver 51 are provided. The straight guide base 48 is a base frame that supports the adhesive material protective film peeling mechanism.

  On the straight guide base 48, a straight guide 49 extending left and right in FIG. 4A is provided, and a tape unwinding / winding portion 50 and an optical film receiver 51 are disposed thereon.

  The linear guide base 48 is provided with a cylinder 52 so that the tape unwinding / winding portion 50 can be moved to the vicinity of the optical film 1 sucked and held by the suction plate 33 and the tip suction plate 34 by the cylinder 52. Yes. A part of the adhesive tape 55 has a path having an inclination angle that coincides with the inclination angle of the optical film 1 adsorbed and held by the adsorption plate 33 and the tip adsorption plate 34.

  A plurality of tape unwinding shafts 53 are provided in the tape unwinding / winding portion 50, and an adhesive tape 55 can be attached to each tape unwinding shaft 53. In addition, a torque motor 56 is provided for each tape unwinding shaft 53 in order to apply tension to the end of the tape unwinding shaft 53 so that no slack is generated when the tape is pulled out.

  The tape is wound in a state where the protective film 7 provided with the winding shaft 54 and peeled off by the adhesive tape 55 is attached to the adhesive tape 55. In order to control the winding speed and winding amount at this time, a sensor 57 and a servo motor 58 for measuring the winding shaft diameter are provided.

  The adhesive tape 55 is unwound from each tape unwinding shaft 53 in parallel with the extending direction of the linear guide 49 and proceeds in the direction of the sticking tip (one side tip portion of the film) of the optical film 1, and the tip shown in FIG. In the peeling roll 59, the path is turned back, has a reverse direction, and moves backward to be wound around the winding shaft 54.

  The number of adhesive tapes 55 installed is three, but the adhesive tape 55 may be installed in an appropriate number according to the width of the optical film 1 and the display panel 2 and the adhesive force of the adhesive tape 55 to the protective film 7.

  In order to peel off the protective film 7 preferably, the optical film 1 and the display panel 2 are desirably arranged at equal intervals on the left and right with respect to the center of the width dimension, and at least two may be installed.

  The optical film receiver 51 has a flat plate shape, and after the front end of the protective film 7 is completely peeled off with the adhesive tape 55, the optical film 1 is received from the suction plate 33 and the front end suction plate 34 and supported from below, and the optical film 1 is bent or positioned. It is provided to prevent misalignment. Therefore, the optical film receiver 51 is positioned not on the tip suction plate 34 side but on the suction plate 33 side, and has the same tilt angle as that of a part of the adhesive tape 55.

  With reference to FIG. 4B, peeling of the protective film 7 attached to the optical film 1 will be described.

  The adhesive tape 55 is pulled out from each tape unwinding shaft 53, and reversely moves on the tip peeling roll 59 via rollers provided at predetermined positions as shown in the drawing, and is wound around the winding shaft 54. In this state, the tip peeling roll 59 moves the tape unwinding / winding portion 50 to the vicinity of the optical film 1, and the tip peeling roll becomes the tip of the optical film 1 (the inclined optical film 1 indicated by a dotted line in FIG. 4B). Is arranged at a position matching the lower end of

  The tip peeling roll 59 is supported by the support member 61 via the guide 60. The support member 61 is provided with a cylinder 62, and the tip peeling roll 59 is moved in the direction of arrow a by the operation of the cylinder 62, so that the adhesive tape 55 can be pressed and adhered to the tip position of the protective film 7.

  The support member 61 is supported by a linear guide 63 provided in accordance with the inclination of the optical film 1, and a ball screw nut 64 of a ball screw 65 is attached thereto. Thereby, it is possible to move along the inclination of the optical film 1 by the rotation of the pulse motor 66 attached to the ball screw 65, and the moving speed and the moving distance can be accurately controlled.

  Thereby, if it moves to the arrow b direction in the state which pressed the front-end | tip peeling roll 59, the front-end | tip peeling roll 59 will raise while rotating. At this time, since each adhesive tape 55 moves in the direction of arrow c by the winding force of the winding shaft 54, the winding force acts on the protective film 7 attached to each adhesive tape 55, and the protective film 7 Peel off sequentially from the tip.

  Furthermore, the pressure roll mechanism will be described.

  As shown in FIG. 1, the pressure roll mechanism includes a pressure roll 46, a lever 69, and a cylinder 68. The pressure roll mechanism is provided with a linear guide 71, a column 67, and a cylinder 70 provided on the base frame 72 in order to enable movement in the horizontal direction on the left and right in FIG. 1. The optical film 1 and the display panel 2 are attached by moving the operation of the cylinder 68 downward by the pressure roll 46 via the lever 69 after being moved by the operation of the cylinder 70.

  The pressure roll 46 does not have a rotation drive mechanism, and has a structure in which the pressure roll 46 is rotated by the movement of the panel movement mechanism after the optical film 1 and the display panel 2 are sandwiched.

  The size of the press roll 46 is not limited and can be set in consideration of the strength of the display panel 2 and the required pressing force of the optical film 1.

  When the width of the display panel 2 is wide or when a high pressing force is required, the press roll 46 becomes long and the deflection of the central portion becomes large, and it becomes impossible to maintain a uniform pressing force in the width direction. Therefore, in order to suppress this deflection, a pressure roll mechanism can be configured by combining a crown-shaped roll having a slightly larger diameter at the center as a backup roll.

  Although elastic rubber is provided on the surface of the pressure roll 46, the material thereof is not particularly limited and can be appropriately selected depending on the optical film 1. Silicon or conductive rubber having good releasability from the PET film is suitable. The rubber hardness is preferably soft in order to absorb warpage of the display panel 2.

  A CCD camera mechanism is provided above the pressure roll mechanism. The CCD camera mechanism is supported by an apparatus frame (not shown), and includes a CCD camera 47, a horizontal movement mechanism 73, and a vertical movement mechanism 74.

  Two CCD cameras 47 are provided, and can be applied to the display panel 2 and the optical film 1 with the same camera by the horizontal movement mechanism 73 and the vertical movement mechanism 74.

  The display panel 2 is stopped and fixed at the position indicated by the solid line on the left side of FIG. 1 by the XYZθ table 9, and then the positioning mark position provided on the display panel 2 is recognized by the CCD camera 47 by the horizontal movement mechanism 73 and the vertical movement mechanism 74. The positional deviation and inclination (rotational deviation in the horizontal plane) in the XY directions of the display panel 2 are measured.

  Further, the optical film 1 that is sucked and held by the suction plate 33 and the tip suction plate 34 and stopped and fixed at the optical film attaching position in the horizontal state is also provided through the alignment mark recognition hole 44 provided in the tip suction plate 34. 1 positioning mark is recognized and the position and inclination are measured.

The measured position data is processed by the apparatus controller, and the position of the display panel 2 is adjusted by the XYZθ table 9 provided in the panel moving mechanism, thereby aligning the optical film 1 and the display panel 2. The optical film 1 is affixed at a desired position with high accuracy.

  Next, operation | movement of the optical film sticking apparatus of the said structure which sticks the optical film 1 to the display panel 2 is demonstrated.

  FIG. 5 is a plan view showing an overall schematic configuration of the optical film sticking apparatus.

  In FIG. 5, A is an optical film supply unit, B is a pasting unit, C is a display panel supply unit, D is a display panel transport unit, E is a display panel cleaning unit, F is a pressure roll mechanism standby unit, and G is an adhesive material. A protective film peeling mechanism standby unit, H is a display panel recovery unit.

  In order to affix the optical film 1 to the display panel 2, the optical film 1 is placed on the optical film table 42 in the optical film supply unit A, and alignment is performed accurately using an alignment guide (not shown).

  Next, the display panel 2 is mounted on the panel fixing jig 11 in advance, and is set at the panel insertion position using the transport carriage 77. The receiving surface of the panel fixing tool 11 of the transport carriage 77 has a free roller structure. Thus, the operation preparation for attaching the optical film 1 is completed.

  Next, the pasting operation is started by operating the automatic driving start button. The suction plate support member 32 of the optical film suction / conveyance mechanism shown in FIG. 3 is located in the optical film supply section A, and the optical film table 42 is lifted. As shown in FIG. The optical film 1 is pressed against the suction plate 33 and the tip suction plate 34 that have been lowered in step S3. After suction holding by the suction plate 33 and the tip suction plate 34, the suction plate 33 and the tip suction plate 34 rise, and are indicated by dotted lines in FIG. Thus, the suction plate support member 32 moves to the sticking part B and waits.

  On the other hand, the XYZθ table 9 is located in the display panel transport unit D, and the display panel supply unit C pushes the panel fixing jig 11 with the display panel 2 on the transport carriage 77 to the display panel transport unit D. The panel fixing jig 11 is pulled in by a conveying roller 28 in the conveyor 10 on the XYZθ table 9 and fixed after alignment.

  Next, the display panel 2 on the XYZθ table 9 is conveyed to the display panel cleaning unit E, and the display panel 2 is slightly lifted by the lifting guide 25 and the cam follower 26 on the XYZθ table 9, and the panel cleaner 75 After cleaning the surface, the display panel 2 is returned to its original height by the lifting guide 25 and the cam follower 26. Thereafter, the XYZθ table 9 passes under the pressure roll mechanism standby section F and is positioned on the pasting section B.

  And in the sticking part B, as described later, the tip of the protective film 7 of the optical film 1 is peeled off by the adhesive material protective film peeling mechanism and the pressure roll mechanism, and the optical film receiver 51 and the adhesive tape 55 are attached to the suction plate 33. The optical film 1 is received from the tip suction plate 34 and supported from below, the optical film 1 is pressed by the pressure roll 46, and the display panel 2 is moved to the right in FIG. 5 by the XYZθ table 9. Then, the attachment to the display panel 2 is completed.

The suction plate 33 and the tip suction plate 34 that have delivered the optical film 1 to the optical film receiver 51 and the adhesive tape 55 are returned to the optical film supply section A by the suction plate support member 32 of the optical film suction and conveyance mechanism.

  The display panel 2 to which the optical film 1 has been attached is returned to the display panel transport unit D by the XYZθ table 9, the panel fixing jig 11 is released, and is fed to the display panel collection unit H by the conveyor 10. Receipt is performed and a series of pasting operation is completed.

  The method of supplying the optical film 1 to the optical film table and the method of using the transport carriage 77 for supplying the display panel 2 described in the above series of operation operations are not particularly limited, and an automatic feeder is used. Is also possible.

  Next, attachment of the optical film 1 to the display panel 2 by the adhesive material protective film peeling mechanism and the pressure roll mechanism will be described.

  As shown in FIG. 6, in the pasting portion B, the display panel 2 is positioned at the position where the optical film 1 is pasted by the XYZθ table 9, and the optical film 1 is placed on the suction panel 33 and the tip suction plate 34 on the display panel 2. The tape unwinding / winding unit 50 starts the attaching operation of the optical film 1 in the standby position state.

  First, the optical film 1 is sucked and held by the suction plate 33 and the tip suction plate 34 and kept in a horizontal state, and the optical film 1 is detected from above the alignment recognition mark hole 44 provided in the tip suction plate 34 by the CCD camera 47. The position of the alignment mark at is measured. Next, the CCD camera 47 is moved, and the position of the alignment mark on the display panel 2 is measured.

  Thereafter, the CCD camera 47 is returned to the original position shown in FIG. 1 (position indicated by a dotted line in FIG. 6), and each measured position data is processed by an apparatus controller (not shown), and the display panel 2 is displayed by the XYZθ table 9. Adjust the position.

  Next, as shown in FIG. 7, the suction plate 33 tilts the sticking tip side of the optical film 1 downward by the operation of the elevating cylinders 40 and 41. At this time, the inclination angle of the suction plate 33 is set to an appropriate angle. However, when the inclination angle is large, the tip length of the optical film 1 protruding when the optical film 1 is pressed against the display panel 2 by the pressure-bonding roll 46 is used. Need to be larger. Moreover, when the inclination angle is small, there is no space for providing components such as the tip peeling roll 59 for peeling the tip of the protective film 7 attached to the optical film 1.

  Next, the tape unwinding / winding portion 50 is moved to the vicinity of the optical film 1 by the cylinder 52. At this time, the adhesive tape 55 provided in the tape unwinding / winding unit 50 and the protective film 7 attached to the optical film 1 are positioned so as to maintain a slight gap so as not to contact. This is because the protective film 7 cannot be uniformly peeled when it comes into contact with the protective film 7 before pressing the adhesive tape 55 with the tip peeling roll 59.

  Next, as shown in FIG. 8A, the pressure-sensitive adhesive tape 55 is pressed in the direction of the arrow a with the tip peeling roll 59 by the cylinder 62 against the tip position of the protection film 7 attached to the optical film 1. Adhesive tape 55 adheres to the tip. Moreover, the optical film 1 and the adhesive sheet 43 are pressed by the tip peeling roll 59, and both adhere.

  When the tip peeling roll 59 is moved in the direction of the arrow b along the inclination of the protective film 7 (moved toward the suction plate 33 side) by the pulse motor 66 as shown in FIG. Moves while rotating.

  For this reason, the adhesive tape 55 is moved in the direction of the arrow c by the winding force of the winding shaft 54 and is turned back and forth in the tip peeling roll 59. Therefore, the adhesive tape 55 is also wound on the protective film 7 attached to the adhesive tape 55. The force acts, and the protective film 7 is peeled off by the moving amount in order from the tip.

  At this time, the front end portion of the optical film 1 is pressed against the adhesive sheet 43 by the front end peeling roll 59, so that the front end portion of the optical film 1 does not peel from the surface of the front end suction plate 34, and the front end peeling of the protective film 7 fails. Does not occur.

  Next, the suction to the tip of the optical film 1 by suction of the tip suction plate 34 is released by closing an on-off valve provided in the middle of the suction pipe, and as shown in FIG. The tip adsorbing plate 34 positioned flush with the turning shaft 45 is turned and retracted to secure a pressing space for the pressure roll 46 for attaching the tip of the optical film 1 to the display panel 2. When the front end of the optical film 1 is attached to the display panel 2 with the pressure roll 46, the state in which the position of the optical film 1 is recognized by the CCD camera 47 can be maintained by retracting and removing only the front end suction plate 34. Further, the optical film 1 is not bent downward by the tape take-up force in the direction of the arrow c due to the optical film suction holding by the suction plate 33 and the rigidity of the optical film 1, and upward as the tip suction plate 34 is turned and retracted. There will be no bending.

  Next, as shown in FIG. 9A, the optical film 1 is adsorbed and held by the adsorption plate 33, and the front end portion is attached to the display panel 2 by the pressure-bonding roll 46 with the protective film 7 at the front end portion peeled off. Attached.

At this time, the pressing roll 46 moves from the position of the pressure roll mechanism standby section F shown in FIG. 5 toward the sticking section B by the operation of the cylinder 70 (see FIG. 1), and the tip position of the optical film 1 is displayed on the display panel. The generation of bubbles can be prevented by pressing against the tip of 2.

  After the tip of the optical film 1 is attached to the tip of the display panel 2 with the pressure roll 46, the suction plate 33 opens the suction holding of the optical film 1 by closing an on-off valve provided in the middle of the suction pipe. Then, the suction plate 33 and the tip suction plate 34 are moved back to the horizontal by the elevating cylinders 40 and 41 and then moved to the optical filter table 42 of the optical film supply unit A to prepare for the next pasting operation.

  The optical film 1 released from the suction plate 33 is supported from the lower surface side by the optical film receiver 51 and the adhesive tape 55, and is optical when a sticking operation is performed with the optical film 1 being sucked and held by the suction plate 33. The film 1 and the suction plate 33 are rubbed, and no scratches or abrasion powder is generated on the surface of the optical film 1.

Next, as shown in FIG. 9B, the display panel 2 to which the tip of the optical film 1 is attached is moved in the direction of arrow e by the XYZθ table 9 while being pressed by the pressure-bonding roll 46, and the optical film 1 is pulled out in the same direction, and the press roll 46 is also rotated. The protective film 7 adhered to the adhesive tape 55 is also drawn out in the same manner, and the protective film 7 is peeled off from the optical film 1 while being adhered to the adhesive tape 55 and taken up on the take-up shaft 54 together with the adhesive tape 55. .

  At this time, the front end peeling roll 59 moves to the suction plate 33 side along the inclination of the suction plate 33 when the front end portion of the protective film 7 is peeled, and is located slightly away from the upper surface of the display panel 2. Even if the protective film 7 peeled off is wound around the winding shaft 54, the display panel 2 is not affected.

  In other words, the optical film 1 is not in contact with the display panel 2 until it is pressed by the pressure-bonding roll 46 at an angle formed by the tip peeling roll 59, so that air bubbles are mixed in while removing air between the optical film 1 and the display panel 2. There is no, can be pasted in a clean state.

  In the case where the optical film 1 moves to a position where the optical film 1 is removed from the front end peeling roll 59 and the rear end portion of the optical film 1 falls on the surface of the display panel 2 and there is a possibility that air bubbles are mixed in, the pressure roll 46 side By providing a plate that adsorbs the upper surface of the optical film 1, it is possible to prevent the rear end portion from falling and to perform clean sticking without bubbles from the front end to the rear end.

  As described above, the optical film 1 can be obtained on the display panel 2 with a high quality finished product with no bubbles or abrasion powder mixed from the front end to the rear end and without scratches on the surface. In addition, since the positions before the optical film 1 and the display panel 2 are pasted can be recognized and corrected and moved, high-precision pasting can be realized.

It is a principal part schematic of the optical film sticking apparatus which concerns on this invention. It is a side view of the optical film used for the optical film sticking apparatus shown in FIG. It is the schematic of the optical film adsorption | suction conveyance mechanism of the optical film sticking apparatus shown in FIG. It is the schematic of the adhesive material protective film peeling mechanism in the optical film sticking apparatus shown in FIG. It is a top view which shows the schematic structure of the whole optical film sticking apparatus which concerns on this invention. It is a figure explaining the alignment of the optical film and display panel by the optical film sticking apparatus shown in FIG. It is a figure explaining alignment of the optical film and the front-end | tip part of a display panel by the optical film sticking apparatus shown in FIG. It is a figure explaining peeling of the protective film in the optical film by the adhesive material protective film peeling mechanism shown in FIG. It is a figure explaining sticking from the front-end | tip part to the rear-end part of the optical film and display panel by the optical film sticking apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Optical film, 2 ... Display panel, 7 ... Protective film, 9 ... XYZ (theta) table, 33 ... Adsorption plate, 34 ... Tip adsorption plate, 46 ... Crimp roll, 47 ... CCD camera,
50 ... tape unwinding / winding part, 55 ... adhesive tape, 59 ... tip peeling roll.

Claims (8)

  1. In a film sticking method in which a sheet-like film having a size suitable for the substrate and the substrate is peeled off and the protective film provided on the adhesive surface of the film is peeled off and attached to the substrate,
    Above the horizontally held substrate, the film is placed on the opposite side of the protective film with the tip suction plate corresponding to the tip of one side of the film and the suction plate corresponding to the region of the film other than the tip of the one side. Adhesive and hold, affixed to the protective film of the film held on the adsorbing plate and the tip adsorbing plate is affixed with an adhesive tape arranged perpendicular to the tip of one side of the film, and the adhesive tape is attached to one side of the film The tip of the protective film is peeled off at the tip of one side of the film by moving it so as to move backward at the tip, and the tip adsorbing plate is released from holding the tip of the film by sucking the tip. The tip of the protective film is placed at a position corresponding to the tip of one side of the film of the substrate that is detached from the tip of one side of the film and held horizontally. Align the tip of one side of the film from which the film was peeled off and press this part with a pressure roller, release the suction holding of the film by the suction plate, and move the substrate horizontally starting from the tip of the one side of the film A film sticking method comprising: peeling off the protective film by reversing and moving the adhesive tape while feeding the film onto the substrate and applying pressure with the pressure roller to attach the film to the substrate.
  2.   In the above-mentioned claim 1, above the horizontally held substrate, the film is sucked and held by the suction plate and the tip suction plate in a state where the one side tip portion side is close to the tip portion side of the substrate, The pressure-sensitive adhesive tape is pressed against the front end position of the protective film with a front-end peeling roll, and the pressure-sensitive adhesive tape is wound up by being moved in a direction away from the substrate along the inclination while the front-end peeling roll is pressed. A film sticking method comprising peeling off the tip of a film.
  3.   3. The pressure sensitive adhesive sheet according to claim 2, wherein a pressure sensitive adhesive sheet is embedded at a position where the front edge peeling plate of the front edge adsorption plate is pressed, and when the edge of the protective film is peeled off due to the suction of the edge adsorption plate and the adhesion of the pressure sensitive adhesive sheet to the protective film. A film sticking method, wherein the film is prevented from floating.
  4. In a film sticking method in which a sheet-like film having a size suitable for the substrate and the substrate is peeled off and the protective film provided on the adhesive surface of the film is peeled off and attached to the substrate,
    The film is sucked and held on the opposite side of the protective film with the suction plate and the tip suction plate above the horizontally held substrate, and adhered to the protective film with the tip peeling roll located at the tip of the film. Affixing the tape, the tip of the protective film is peeled off by moving the adhesive tape toward the suction plate along the inclination of the tip peeling roll, and the tip suction plate is detached from the tip of the film. Align the tip of the film from which the tip of the protective film has been peeled off with the tip of the substrate held horizontally and pressurize it with a pressure roller, and release the suction holding of the film by the suction plate. The protective film is peeled off when the adhesive tape is folded back by the tip peeling roll while being moved horizontally with the head side at the top, and the film is placed on the substrate. Film sticking method supplied, pressurized with piezoelectric bonding roller, characterized in that paste the film on the substrate.
  5. In the film sticking apparatus for peeling off the protective film provided on the adhesive surface of the film and attaching the sheet-like film having a size suitable for the substrate and the substrate to the substrate,
    A substrate holding / moving mechanism for holding the substrate horizontally and moving one side of the substrate from the top, and the film above the substrate holding / moving mechanism corresponding to one side of the substrate on the side opposite to the protective film A tip suction plate and a suction plate for sucking and holding the one end of the film and a region of the film other than the tip of the one side, and the tip suction plate and the suction plate. A suction plate tilting mechanism that tilts so as to approach the adhesive plate, an adhesive tape that is disposed on the protective film of the film tilted by the suction plate tilting mechanism so as to be orthogonal to the tip of one side of the film, and the adhesive tape The film is moved to the side of the one end of the film to adhere to the protective film, and is moved backward on the side of the one end of the film to remove the protective film. An adhesive tape moving mechanism for peeling the film from one side tip portion side, and releasing the adsorption holding of the film by the tip suction plate in a state where the adhesive tape peels the protective film from the one side tip portion side A tip suction plate releasing and releasing means for releasing from the tip of one side, and a suction plate release for releasing the suction and holding of the film by the suction plate in a state where the adhesive tape peels the protective film from the tip of the one side of the film Pressure-bonding means and a position that is aligned with the position corresponding to the one end of the film on the substrate holding the one end of the film horizontally with the tip adsorbing plate detached from the one end of the film A pressure mechanism that pressurizes with a roller, and the adhesive tape is moved horizontally while the substrate is moved horizontally with the leading edge of one side of the film as the head. The film is supplied onto the substrate while the protective film is peeled off by the reverse movement and movement of the adhesive tape by the movement mechanism, and the film is pressed onto the substrate by the pressure roller of the pressure mechanism. A film sticking device.
  6.   6. The film sticking apparatus according to claim 5, wherein the tip adsorbing plate includes an adhesive member that adheres the tip of one side of the film.
  7.   6. The film sticking apparatus according to claim 5, wherein the tip adsorbing plate is provided with an alignment mark recognition hole for reading an alignment mark provided at the tip of one side of the film with a camera. apparatus.
  8. 6. The film sticking apparatus according to claim 5, wherein the suction plate and the tip suction plate are provided with suction holes for sucking the film by suction.

JP2005359730A 2005-12-14 2005-12-14 Film sticking method and apparatus Active JP4780559B2 (en)

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JP2005359730A JP4780559B2 (en) 2005-12-14 2005-12-14 Film sticking method and apparatus

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JP2005359730A JP4780559B2 (en) 2005-12-14 2005-12-14 Film sticking method and apparatus
KR1020060127189A KR100782445B1 (en) 2005-12-14 2006-12-13 A method for adhesion of film and an apparatus thereof
TW095146659A TWI317253B (en) 2005-12-14 2006-12-13
CN2006101693169A CN1982053B (en) 2005-12-14 2006-12-14 Method for adhesion of film and apparatus thereof

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JP4780559B2 JP4780559B2 (en) 2011-09-28

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CN (1) CN1982053B (en)
TW (1) TWI317253B (en)

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Also Published As

Publication number Publication date
TWI317253B (en) 2009-11-11
TW200738084A (en) 2007-10-01
KR20070063444A (en) 2007-06-19
JP4780559B2 (en) 2011-09-28
KR100782445B1 (en) 2007-12-05
CN1982053A (en) 2007-06-20
CN1982053B (en) 2010-05-19

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