JP2014228563A - Production system of optical display device - Google Patents

Production system of optical display device Download PDF

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JP2014228563A
JP2014228563A JP2013105588A JP2013105588A JP2014228563A JP 2014228563 A JP2014228563 A JP 2014228563A JP 2013105588 A JP2013105588 A JP 2013105588A JP 2013105588 A JP2013105588 A JP 2013105588A JP 2014228563 A JP2014228563 A JP 2014228563A
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optical
bonding
liquid crystal
crystal panel
surplus
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JP2013105588A
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JP6182805B2 (en
Inventor
達也 土岡
Tatsuya Tsuchioka
達也 土岡
和範 岸▲崎▼
Kazunori Kishizaki
和範 岸▲崎▼
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住友化学株式会社
Sumitomo Chemical Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a production system of an optical display device capable of increasing a display area and downsizing equipment through reducing a frame part in a periphery of a display region in size.SOLUTION: A production system includes: a laminating device 13 for cutting a belt-shaped optical member sheet having a width larger than a length of either one side of a long side and a short side of a display region of a liquid crystal panel P into a length larger than a length of the other side of the long side and the short side of the display region to form a sheet piece F1m, and then laminating the sheet piece F1m with the liquid crystal panel P; a first detecting device for detecting an outer peripheral edge of a first laminated face between the sheet piece F1m and the liquid crystal panel P; a cutting device 15 for cutting off a surplus part of the sheet piece F1m laminated with the liquid crystal panel P that is outside a portion corresponding to the first laminated face, along the outer peripheral edge, to form an optical member having a size corresponding to the first laminated face: and a recovery device 30 for chucking and delaminating the surplus part from the optical member for recovery.

Description

  The present invention relates to an optical display device production system.
  Conventionally, in a production system for an optical display device such as a liquid crystal display, an optical member such as a polarizing plate to be bonded to a liquid crystal panel (optical display component) is formed from a long film into a sheet piece having a size matching the display area of the liquid crystal panel. After being cut out, packed and transported to another line, it may be bonded to a liquid crystal panel (see, for example, Patent Document 1).
JP 2003-255132 A
  However, in the conventional configuration described above, a sheet piece slightly larger than the display area is cut out in consideration of variation in dimensions of the liquid crystal panel and the sheet piece, and bonding variation (positional deviation) of the sheet piece to the liquid crystal panel. . Therefore, there is a problem that an extra area (frame part) is formed around the display area, and downsizing of the device is hindered.
  An object of the present invention is to provide a production system for an optical display device capable of reducing the frame portion around the display area to enlarge the display area and downsize the device.
  An optical display device production system of the present invention is an optical display device production system in which an optical member is bonded to an optical display component, and is either one of a long side and a short side of a display region of the optical display component. While the belt-shaped optical member sheet having a width wider than the length of one side is unwound from the original roll, the optical member sheet is longer than the length of one of the long side and the short side of the display region. After cutting into length to form a sheet piece, in the bonding apparatus, the sheet piece is bonded to the optical display component, and the bonding body is bonded to the optical display component. In the detection apparatus which detects the outer periphery of a surface, and the said bonding body, the excess part arrange | positioned on the outer side of the part corresponding to the said bonding surface from the said sheet piece bonded by the said optical display component, the said outer periphery Detach along A cutting device for forming a size the optical member corresponding to the bonding surface, characterized in that it comprises a and a recovery device for peeling recovered from the optical member by the chuck the excess portion.
  Here, the “bonding surface between the sheet piece and the optical display component” refers to a surface facing the sheet piece in the optical display component, and “the outer peripheral edge of the bonding surface” specifically refers to an optical display. The outer peripheral edge of the board | substrate of the side by which the sheet piece was bonded in components is pointed out.
  Further, the “part corresponding to the bonding surface” of the sheet piece means that the outer shape of the optical display component (contour shape in plan view) is not less than the size of the display area of the optical display component facing the sheet piece. Is a region that is smaller than the size of the optical display component and avoids a functional portion such as an electrical component mounting portion in the optical display component. Similarly, the “size corresponding to the bonding surface” is a size not less than the size of the display area of the optical display component and not more than the size of the outer shape (contour shape in plan view) of the optical display component, In addition, it refers to a size that avoids a functional part such as an electric part mounting part in the optical display part.
  In this invention, the said collection | recovery apparatus may peel and collect | recover the said excess part from the part corresponding to the corner | angular part of the said sheet piece.
  In the present invention, the collection device adsorbs the optical display component and a peeling roll that rotates by winding the surplus portion around an outer peripheral surface, and the long side and the short side of the optical display component are rotated on the rotation axis of the peeling roll. A suction table that relatively moves the optical display component in a direction perpendicular to the rotation axis of the peeling roll in a state where the optical display component is tilted with respect to the surface.
  In the present invention, the peeling roll may have a built-in chuck unit that chucks the surplus portion, and the surplus portion may be wound up by rotating in a state where the surplus portion is chucked by the chuck unit.
  In this invention, the said adsorption | suction table may peel a part of said surplus part by carrying out relative displacement below the said peeling roll in the state in which the said surplus part was chucked by the said chuck unit.
  In the present invention, after the suction table is relatively displaced below the peeling roll, the collection device nips a part of the surplus part and winds the surplus part by the peeling roll in the same direction as the winding direction. You may provide the feed roll which sends an excess part.
  In the present invention, the suction table has a direction in which the optical display component is orthogonal to the rotation axis of the peeling roll in a state where the long side and the short side of the optical display component are inclined by 45 ° with respect to the rotation axis of the peeling roll. You may make it move relatively.
  ADVANTAGE OF THE INVENTION According to this invention, the production system of the optical display device which can aim at expansion of a display area and size reduction of an apparatus can be provided by reducing the frame part around a display area.
It is a schematic block diagram of the film bonding system in embodiment of this invention. It is a top view of the liquid crystal panel as one structural example of an optical display component. It is AA sectional drawing of FIG. It is sectional drawing of an optical member sheet | seat. It is a schematic block diagram of the collection | recovery apparatus in embodiment of this invention. It is a top view when the collection | recovery apparatus in embodiment of this invention peels and collects an excess part. It is explanatory drawing which shows operation | movement of the collection | recovery apparatus in embodiment of this invention. It is explanatory drawing which shows operation | movement of the collection | recovery apparatus following FIG. It is explanatory drawing which shows operation | movement of the collection | recovery apparatus following FIG. It is a top view which shows the 1st modification at the time of a collection | recovery apparatus peeling and collect | recovering surplus parts. It is a schematic diagram of the 1st detection apparatus which detects the outer periphery of the bonding surface. It is a schematic diagram which shows the modification of the 1st detection apparatus which detects the outer periphery of the bonding surface. It is a top view which shows the position which detects the outer periphery of the bonding surface. It is a schematic diagram of the 2nd detection apparatus which detects the outer periphery of the bonding surface.
  Embodiments of the present invention will be described below with reference to the drawings. This embodiment demonstrates the film bonding system which comprises the one part as a production system of an optical display device.
  Drawing 1 is a schematic structure figure of film pasting system (production system of an optical display device) 1 in an embodiment of the present invention. The film bonding system 1 is for bonding a film-shaped optical member such as a polarizing film, a retardation film, and a brightness enhancement film to a panel-shaped optical display component such as a liquid crystal panel or an organic EL panel. And an optical display device including an optical member. In the film bonding system 1, the liquid crystal panel P is used as the optical display component. In FIG. 1, for convenience of illustration, the film bonding system 1 is illustrated in two upper and lower stages.
  FIG. 2 is a plan view of the liquid crystal panel P viewed from the thickness direction of the liquid crystal layer P3. The liquid crystal panel P includes a first substrate P1 that has a rectangular shape in plan view, a second substrate P2 that has a relatively small rectangular shape that is disposed to face the first substrate P1, a first substrate P1, and a second substrate. And a liquid crystal layer P3 sealed between the substrate P2. The liquid crystal panel P has a rectangular shape that follows the outer shape of the first substrate P1 in a plan view, and a region that fits inside the outer periphery of the liquid crystal layer P3 in a plan view is a display region P4.
  3 is a cross-sectional view taken along the line AA in FIG. On the front and back surfaces of the liquid crystal panel P, first and second long and strip-like first and second optical member sheets F1 and F2 (see FIG. 1, hereinafter, sometimes collectively referred to as an optical member sheet FX) are cut out. Two optical members F11 and F12 (hereinafter may be collectively referred to as an optical member F1X) are appropriately bonded. In the present embodiment, the first optical member F11 and the second optical member F12 as polarizing films are bonded to both the backlight side and the display surface side of the liquid crystal panel P, respectively. In addition, the 3rd optical member as a brightness improvement film may be further bonded on the surface by the side of the backlight of liquid crystal panel P so that it may overlap with the 1st optical member F11.
  The first and second optical members F11 and F12 are first and second sheet pieces F1m and F2m (hereinafter, sometimes referred to collectively as sheet pieces FXm), which will be described later. It is formed by separating.
  FIG. 4 is a partial cross-sectional view of the optical member sheet FX bonded to the liquid crystal panel P. The optical member sheet FX includes a film-shaped optical member main body F1a, an adhesive layer F2a provided on one surface (the upper surface in FIG. 3) of the optical member main body F1a, and one of the optical member main bodies F1a via the adhesive layer F2a. The separator sheet F3a is detachably stacked on the surface, and the surface protection film F4a is stacked on the other surface (the lower surface in FIG. 4) of the optical member body F1a. The optical member main body F1a functions as a polarizing plate, and is bonded over the entire display area P4 of the liquid crystal panel P and its peripheral area. For convenience of illustration, hatching of each layer in FIG. 4 is omitted.
  The optical member body F1a is bonded to the liquid crystal panel P via the adhesive layer F2a in a state where the separator sheet F3a is separated while leaving the adhesive layer F2a on one surface thereof. Hereinafter, the part remove | excluding the separator sheet F3a from the optical member sheet | seat FX is called the bonding sheet | seat F5.
  The separator sheet F3a protects the adhesive layer F2a and the optical member body F1a before being separated from the adhesive layer F2a. The surface protective film F4a is bonded to the liquid crystal panel P together with the optical member body F1a. The surface protective film F4a is disposed on the side opposite to the liquid crystal panel P with respect to the optical member body F1a to protect the optical member body F1a. The surface protective film F4a is separated from the optical member main body F1a at a predetermined timing. The optical member sheet FX may be configured not to include the surface protective film F4a, or the surface protective film F4a may be configured not to be separated from the optical member main body F1a.
  The optical member body F1a is bonded to the sheet-like polarizer F6, the first film F7 bonded to one surface of the polarizer F6 with an adhesive or the like, and the other surface of the polarizer F6 with an adhesive or the like. And a second film F8. The first film F7 and the second film F8 are protective films that protect the polarizer F6, for example.
  The optical member main body F1a may have a single-layer structure composed of one optical layer, or may have a stacked structure in which a plurality of optical layers are stacked on each other. In addition to the polarizer F6, the optical layer may be a retardation film, a brightness enhancement film, or the like. At least one of the first film F7 and the second film F8 may be subjected to a surface treatment capable of obtaining an effect such as a hard coat treatment for protecting the outermost surface of the liquid crystal display element or an antiglare treatment. The optical member body F1a may not include at least one of the first film F7 and the second film F8. For example, when the first film F7 is omitted, the separator sheet F3a may be bonded to one surface of the optical member main body F1a via the adhesive layer F2a.
As shown in FIG. 1, the film bonding system 1 reaches from the upstream side in the transport direction of the liquid crystal panel P on the right side in the figure to the downstream side in the transport direction of the liquid crystal panel P on the left side in the figure, and transports the liquid crystal panel P in a horizontal state. The drive type roller conveyor 5 is provided.
The roller conveyor 5 is divided into an upstream conveyor 6 and a downstream conveyor 7 with a first turning device 18 described later as a boundary. In the upstream conveyor 6, the liquid crystal panel P is conveyed so that the short side of the display area P4 is along the conveyance direction, and in the downstream conveyor 7, the liquid crystal panel P is such that the long side of the display area P4 is along the conveyance direction. Are transported. A bonding sheet F5 cut out from the belt-shaped optical member sheet FX to a predetermined length is bonded to the front and back surfaces of the liquid crystal panel P. Each part of the film bonding system 1 is comprehensively controlled by a control unit (not shown).
  The film bonding system 1 includes a first suction device 11 that sucks the liquid crystal panel P transported to the carry-out end of the previous step and transports it to the carry-in end of the upstream conveyor 6 and performs alignment (positioning) of the liquid crystal panel P. The 1st dust collector 12 provided in the panel conveyance downstream of the 1st adsorption device 11, The 1st bonding apparatus (bonding apparatus) 13 provided in the panel conveyance downstream rather than the 1st dust collector 12, and 14A of 1st inversions arrange | positioned in the panel conveyance downstream rather than the 1st bonding apparatus 13, 1st cutting device (cutting apparatus) 15A arrange | positioned in the panel conveyance downstream rather than the 1st inversion apparatus 14A, and the 1st A first recovery device (recovery device) 30 disposed downstream of the first cutting device 15 </ b> A, and a first swivel device 18 disposed downstream of the first recovery device 30. Yes.
  Moreover, the film bonding system 1 is arrange | positioned in the panel conveyance downstream rather than the 2nd dust collector 16 arrange | positioned in the panel conveyance downstream from the carrying-in end of the downstream conveyor 7, and the 2nd dust collection apparatus 16. FIG. It arrange | positions in the panel conveyance downstream rather than the 2nd bonding apparatus (bonding apparatus) 17, the 2nd inversion apparatus 14B arrange | positioned more downstream than the 2nd bonding apparatus 17, and the 2nd inversion apparatus 14B. A second cutting device (cutting device) 15B, a second collecting device (collecting device) 40 disposed downstream of the second cutting device 15B, and a panel conveying downstream side of the second collecting device 40. The 2nd turning apparatus 19 arrange | positioned and the defect inspection apparatus 21 arrange | positioned in the panel conveyance downstream rather than the 2nd turning apparatus 19 are provided.
  Further, as will be described in detail later, a detection device used to set a cutting position in the first cutting device 15A is provided on the upstream side of the first cutting device 15A in the panel conveyance, and upstream of the second cutting device 15B in the panel conveyance On the side, a detection device used for setting a cut position in the second cutting device 15B is provided.
The first suction device 11 holds the liquid crystal panel P, aligns the liquid crystal panel P so as to be movable in the vertical direction and the horizontal direction, and is provided in the panel holding portion 11a to align the liquid crystal panel P. And an alignment camera 11b that can be used.
The panel holding unit 11a sucks and holds the liquid crystal panel P transported to the carry-out end of the previous stage by vacuum suction with the suction pad 26 of the suction table 25, and in that state, transports it to the carry-in end of the upstream conveyor 6, When finished, the suction state of the liquid crystal panel P is released and the liquid crystal panel P is delivered to the carry-in end of the upstream conveyor 6.
The alignment camera 11b photographs the alignment mark, the tip shape, and the like of the liquid crystal panel P when the liquid crystal panel P held by the panel holding portion 11a is placed on the upstream conveyor 6.
Imaging data from the alignment camera 11b is transmitted to the control device, and the panel holding unit 11a is operated based on the imaging data to align the liquid crystal panel P with the upstream conveyor 6. At this time, the liquid crystal panel P is at a predetermined position in the direction perpendicular to the transport direction with respect to the upstream conveyor 6, that is, in the width direction of the upstream conveyor 6, and in the turning direction around the vertical axis of the liquid crystal panel P. Positioned.
  The 1st dust collector 12 is provided in the panel conveyance upstream in the vicinity of the bonding position of the 1st bonding apparatus 13, and the static electricity removal of the lower surface side of liquid crystal panel P just before being introduced into the bonding position And collect dust.
The 1st bonding apparatus 13 bonds the bonding sheet | seat F5 cut into the predetermined size with respect to the lower surface of liquid crystal panel P introduced into the bonding position.
The 1st bonding apparatus 13 conveys the 1st optical member sheet | seat F1 along the longitudinal direction, unwinding the 1st optical member sheet | seat F1 from the original fabric roll R1 in which the 1st optical member sheet | seat F1 was wound. A device 22 and a pinching roll 23 for bonding the bonding sheet F5 having a predetermined length separated from the first optical member sheet F1 by the conveying device 22 to the lower surface of the liquid crystal panel P conveyed by the upstream conveyor 6. I have.
  The conveying device 22 conveys the bonding sheet F5 using the separator sheet F3a as a carrier. The conveying device 22 unwinds the first optical member sheet F1 from the roll roll R1 and a roll holding portion 22a that unwinds the first optical member sheet F1 along its longitudinal direction. A plurality of guide rollers 22b around which the first optical member sheet F1 is wound in order to guide the one optical member sheet F1 along a predetermined conveyance path, and a cut portion that performs a half cut on the first optical member sheet F1 on the conveyance path 22c and a knife edge 22d for supplying the bonding sheet F5 to the bonding position while peeling the bonding sheet F5 from the separator sheet F3a by winding the first optical member sheet F1 subjected to the half cut at an acute angle, and a knife Winding unit 2 for holding a separator roll R2 for winding the separator sheet F3a that has become independent through the edge 22d. With the e.
  The first optical member sheet F1 is in the horizontal direction (sheet width direction) orthogonal to the conveyance direction, and the width of the display area P4 of the liquid crystal panel P (the one of the long side and the short side of the display area P4). It has a width wider than the length, which corresponds to the long side length of the display area P4 in this embodiment.
  The roll holding unit 22a located at the carry-in end of the transport device 22 and the winding unit 22e located at the carry-out end of the transport device 22 are driven in synchronization with each other. Thereby, the winding part 22e winds up the separator sheet F3a which passed through the knife edge 22d, while the roll holding part 22a feeds the first optical member sheet F1 in the transport direction. Hereinafter, the upstream side in the transport direction of the first optical member sheet F1 (separator sheet F3a) in the transport device 22 is referred to as a sheet transport upstream side, and the downstream side in the transport direction is referred to as a sheet transport downstream side.
  Each guide roller 22b changes the traveling direction of the first optical member sheet F1 being conveyed along the conveyance path, and at least a part of the plurality of guide rollers 22b applies the tension of the first optical member sheet F1 being conveyed. Moveable to adjust.
  The cut portion 22c is the length of the display region P4 in the length direction in which the first optical member sheet F1 is orthogonal to the sheet width direction (the length of the other side of the long side and the short side of the display region P4, In this embodiment, every time a length longer than the short side length of the display area P4 is extended, a part of the first optical member sheet F1 in the thickness direction is covered over the entire width along the sheet width direction. Make a half-cut to cut. Thereby, the sheet piece (1st sheet piece (sheet piece) F1m) of the bonding sheet | seat F5 larger than the display area P4 of liquid crystal panel P is cut out from the 1st optical member sheet | seat F1.
  The size of the first sheet piece F1m can be larger than the liquid crystal panel P, for example. In the first sheet piece F1m, the size of the portion that protrudes outside the liquid crystal panel P (the size of the surplus portion of the first sheet piece F1m) is appropriately set according to the size of the liquid crystal panel P. For example, in the case where the first sheet piece F1m is applied to a medium-to-small size liquid crystal panel P of 5 inches to 10 inches, one side of the first sheet piece F1m and one side of the liquid crystal panel P at each side of the first sheet piece F1m Is set to a length in the range of 2 mm to 5 mm.
  The half-cut is the advancement / retraction position of the cutting blade so that the first optical member sheet F1 (separator sheet F3a) is not broken by the tension acting during the conveyance of the first optical member sheet F1, and the separator sheet F3a remains with a predetermined thickness. Is cut and cut to the vicinity of the boundary surface between the adhesive layer F2a and the separator sheet F3a. In addition, you may use the laser apparatus replaced with a cutting blade.
  The first optical member sheet F1 after the half cut is formed with a cut line in which the optical member body F1a and the surface protection film F4A are cut in the thickness direction over the entire width in the width direction of the first optical member sheet F1. . The cut lines are formed at intervals having a length corresponding to the short side length of the display region P4 in the longitudinal direction of the belt-shaped first optical member sheet F1, and the first optical member sheet F1 is formed by a plurality of cut lines. Divided into a plurality of sections in the longitudinal direction. Each division part pinched | interposed into a pair of cutting line adjacent in the longitudinal direction of the 1st optical member sheet | seat F1 becomes one sheet piece (1st sheet piece F1m) in the bonding sheet | seat F5.
The knife edge 22d is disposed below the upstream conveyor 6 and extends over at least the entire width in the width direction of the first optical member sheet F1. The knife edge 22d is wound so that the separator sheet F3a side of the first optical member sheet F1 after the half cut comes into sliding contact.
The first optical member sheet F1 peels the separator sheet F3a from the first sheet piece F1m when the traveling direction changes so as to be bent at an acute angle at the tip of the knife edge 22d. The front end portion of the knife edge 22d is disposed close to the panel conveyance downstream side of the pinching roll 23, and the first sheet piece F1m separated from the separator sheet F3a by the knife edge 22d is transferred to the upstream conveyor 6 by the liquid crystal panel P. Are introduced between the pair of laminating rollers 23a, 23a of the pinching roll 23.
  The pinching roll 23 has a pair of bonding rollers 23a and 23a that are arranged with their axial directions parallel to each other. A predetermined gap is formed between the pair of bonding rollers 23 a and 23 a, and the position of this gap becomes the bonding position of the first bonding apparatus 13. The liquid crystal panel P and the first sheet piece F1m are overlapped and introduced into the gap between the pair of bonding rollers 23a and 23a, and the liquid crystal panel P and the first sheet piece F1m are sandwiched between the bonding rollers 23a. It is sent out to the conveyance downstream side. Thereby, the 1st sheet piece F1m is integrally bonded by the lower surface of liquid crystal panel P, and it becomes 1st optical member bonding body (bonding body) PA1.
  The reversing device 14A transports the first optical member bonding body PA1 to the cutting position of the first cutting device 15A, reverses the front and back of the second optical member bonding body PA2 during this transport, and the first sheet piece of the liquid crystal panel P Delivered to the first cutting device 15A in a state where the surface on which F1m is bonded is the upper surface.
  15 A of 1st cutting devices are the surplus part Y arrange | positioned on the outer side of the part corresponding to the bonding surface of liquid crystal panel P and 1st sheet piece F1m from 1st sheet piece F1m bonded to liquid crystal panel P (FIG. 6) and the first optical member F11 having a size corresponding to the bonding surface of the liquid crystal panel P and the first sheet piece F1m (see FIG. 3) is formed. The first optical member F11 is bonded to the front and back surfaces of the liquid crystal panel P by separating the excess portion Y of the first sheet piece F1m from the first optical member bonding body PA1 by the first cutting device 15A. 2 optical member bonding body PA2 is formed.
  The first recovery device 30 includes a peeling roll 36 that rotates by winding the surplus portion Y around the outer peripheral surface, and a suction table 31 that sucks the liquid crystal panel P. The suction table 31 is disposed below the upstream conveyor 6. The 1st collection | recovery apparatus 30 peels and collects the excess part Y cut | disconnected from the 1st sheet piece F1m from the part corresponding to the corner | angular part of the 1st sheet piece F1m. Hereinafter, a portion corresponding to the corner portion of the first sheet piece F1m in the surplus portion Y is referred to as a corner portion of the surplus portion (a portion corresponding to a corner portion of the sheet piece of the surplus portion) Ye (see FIG. 6).
  After the collection process, the suction table 31 moves the liquid crystal panel P in the direction of the first turning device 18 in a state where the long side and the short side of the liquid crystal panel P are inclined with respect to the rotation shaft 36 a of the peeling roll 36. .
The first turning device 18 holds and holds the second optical member bonding body PA2 that has reached the carry-out end of the upstream conveyor 6 via the first cutting device 15A, and the long side and the short side of the liquid crystal panel P. Is rotated so that the second optical member bonding body PA2 that has been conveyed obliquely with respect to the rotation shaft 36a of the peeling roll 36 is conveyed in a direction along the long side of the display region P4.
2nd optical member bonding body PA2 performs the turning operation | movement by the 1st turning apparatus 18, and the polarization axis of each polarizing film bonded by the front and back of liquid crystal panel P becomes a mutually right angle.
  Therefore, the upstream conveyor 6 and the downstream conveyor 7 both have the direction from the right side to the left side in the drawing as the transport direction of the liquid crystal panel P, but the upstream conveyor 6 and the downstream conveyor 7 pass through the first turning device 18. The side conveyor 7 is offset by a predetermined amount in the width direction in plan view.
  Here, the 1st turning apparatus 18 is provided with the alignment camera 18c similar to the alignment camera 11b of the 1st adsorption | suction apparatus 11, and has the alignment function similar to the panel holding | maintenance part 11a of the 1st adsorption | suction apparatus 11. .
  The 2nd dust collector 16 is provided in the panel conveyance upstream near the bonding position of the 2nd bonding apparatus 17, and the lower surface side of 2nd optical member bonding body PA2 just before introduce | transducing into a bonding position. Remove static electricity and collect dust.
The 2nd bonding apparatus 17 bonds the bonding sheet | seat F5 cut into the predetermined size with respect to the lower surface of 2nd optical member bonding body PA2 introduced into the bonding position. The 2nd bonding apparatus 17 is provided with the conveying apparatus 22 and the pinching roll 23 similar to the 1st bonding apparatus 13. FIG.
The cut part 22c of the 2nd bonding apparatus 17 is the length (display area P4 of the display area P4) in the length direction where the 2nd optical member sheet | seat F2 used with this 2nd bonding apparatus 17 orthogonally crosses the said sheet | seat width direction. Each time a longer length than the length of the other of the long side and the short side (corresponding to the long side length of the display area P4 in this embodiment) is extended, the full width along the sheet width direction The second optical member sheet F2 is half-cut to form a plurality of cut lines arranged in the longitudinal direction of the strip-shaped second optical member sheet F2. The score lines are formed at intervals having a length corresponding to the long side length of the display region P4 in the longitudinal direction of the band-shaped second optical member sheet F2, and the second optical member sheet F2 is formed by a plurality of score lines. Divided into a plurality of sections in the longitudinal direction. Each division part pinched | interposed into a pair of cutting line adjacent in the longitudinal direction of the 2nd optical member sheet | seat F2 becomes one sheet piece (2nd sheet piece (sheet piece) F2m) in the bonding sheet | seat F5.
  The magnitude | size of the 2nd sheet piece F2m can be made larger than the liquid crystal panel P, for example. In the second sheet piece F2m, the size of the portion that protrudes outside the liquid crystal panel P (the size of the surplus portion of the second sheet piece F2m) is appropriately set according to the size of the liquid crystal panel P. For example, when the second sheet piece F2m is applied to a medium-sized liquid crystal panel P of 5 inches to 10 inches, one side of the second sheet piece F2m and one side of the liquid crystal panel P at each side of the second sheet piece F2m Is set to a length in the range of 2 mm to 5 mm.
  The pinching roll 23 has a pair of bonding rollers 23a and 23a arranged in parallel with each other in the axial direction, and a predetermined gap is formed between the pair of bonding rollers 23a and 23a. The position becomes the bonding position of the second bonding apparatus 17. In the gap, the second optical member bonding body PA2 and the second sheet piece F2m are introduced in an overlapping state, and the second optical member bonding body PA2 and the second sheet piece F2m are sandwiched between the bonding rollers 23a. While being done, it is sent out to the panel conveyance downstream side. Thereby, the 2nd sheet piece F2m is united with the other surface (surface on the opposite side to the surface where the 1st optical member F11 of 2nd optical member bonding body PA2 was bonded) of 2nd optical member bonding body PA2. Are bonded together to form a third optical member bonded body (bonded body) PA3.
  The second reversing device 14B conveys the third optical member bonding body PA3 to the cutting position of the second cutting device 15B, reverses the front and back of the third optical member bonding body PA3 during the conveyance, and the second of the liquid crystal panel P. The sheet piece F2m is transferred to the second cutting device 15B in a state where the surface is the upper surface.
  The 2nd cutting device 15B is the surplus arrange | positioned on the outer side of the part corresponding to the bonding surface of liquid crystal panel P and 2nd sheet piece F2m from 2nd sheet piece F2m bonded by 3rd optical member bonding body PA3. A part is cut | disconnected and the 2nd optical member F12 (refer FIG. 3) of the magnitude | size corresponding to the bonding surface of liquid crystal panel P and the 2nd sheet piece F2m is formed. The second optical member F12 is bonded to the other side of the front and back surfaces of the liquid crystal panel P by cutting off the excess portion of the second sheet piece F2m from the third optical member bonding body PA3 by the second cutting device 15B, and the liquid crystal The 4th optical member bonding body PA4 formed by bonding the 1st optical member F11 to the surface of one side of the panel P is formed.
Here, the first cutting device 15A and the second cutting device 15B are, for example, CO 2 laser cutters. By the 1st cutting device 15A and the 2nd cutting device 15B, it arrange | positioned on the outer side of the part corresponding to the bonding surface of liquid crystal panel P and the 1st sheet piece F1m, or the 2nd sheet piece F2m from the sheet pieces F1m and F2m. The excess part Y is cut off, and the first optical member F11 and the second optical member F12 having a size corresponding to the bonding surface between the liquid crystal panel P and the first sheet piece F1m or the second sheet piece F2m are formed.
  The cutting device 15 is bonded to the liquid crystal panel P along the outer peripheral edge of the bonding surface of the liquid crystal panel P and the sheet piece FXm bonded to the liquid crystal panel P, which is detected by a detection device described later. The sheet piece FXm is cut endlessly. Outside the display area P4, there is provided a frame portion G (see FIG. 3) having a predetermined width for arranging a sealant or the like for bonding the first and second substrates P1 and P2 of the liquid crystal panel P. The sheet piece FXm is cut (cut line: WCL) by the cutting device 15 within the width of G.
  The detection of the outer peripheral edge of the bonding surface and the cutting by the cutting device are performed in detail as follows.
  FIG. 11 is a schematic diagram of a first detection device (detection device) 61 that detects the outer peripheral edge of the bonding surface. The 1st detection apparatus 61 with which the film bonding system 1 of this embodiment is provided is the bonding surface (henceforth, 1st bonding surface (below) of liquid crystal panel P and 1st sheet piece F1m in 1st optical member bonding body PA1. Bonding surface) may be referred to as SA1.) An imaging device 63 that captures an image of the outer peripheral edge ED, an illumination light source 64 that illuminates the outer peripheral edge ED, an image that is captured by the imaging device 63, and an image And a control unit 65 that performs calculation for detecting the outer peripheral edge ED.
  Such a first detection device 61 is provided on the upstream side of the panel conveyance of the first cutting device 15A in FIG. 1 and is provided between the first reversing device 14A and the first cutting device 15A.
  The imaging device 63 is fixed and arranged inside the first bonding surface SA1 with respect to the outer peripheral edge ED, and the normal line of the first bonding surface SA1 and the normal line of the imaging surface 63a of the imaging device 63 are arranged. The posture is inclined so as to form an angle θ (hereinafter referred to as an inclination angle θ of the imaging device 63). The imaging device 63 directs the imaging surface 63a to the outer peripheral edge ED, and captures an image of the outer peripheral edge ED from the side on which the first sheet piece F1m is bonded in the first optical member bonding body PA1.
  The inclination angle θ of the imaging device 63 is preferably set so that the outer peripheral edge of the first substrate P1 that forms the first bonding surface SA1 can be reliably imaged. For example, when the liquid crystal panel P is formed by so-called multiple chamfering, in which the mother panel is divided into a plurality of liquid crystal panels, the liquid crystal panel P is shifted to the outer peripheral edge of the first substrate P1 and the second substrate P2 constituting the liquid crystal panel P. May occur, and the end surface of the second substrate P2 may be displaced outward from the end surface of the first substrate P1. In such a case, the inclination angle θ of the imaging device 63 is preferably set so that the outer peripheral edge of the second substrate P2 does not enter the imaging field of the imaging device 63.
  In such a case, the inclination angle θ of the imaging device 63 is a distance H between the first bonding surface SA1 and the center of the imaging surface 63a of the imaging device 63 (hereinafter referred to as the height H of the imaging device 63). It is preferable to set so that it may fit. For example, when the height H of the imaging device 63 is 50 mm or more and 100 mm or less, the inclination angle θ of the imaging device 63 is preferably set to an angle in the range of 5 ° or more and 20 ° or less. However, when the deviation amount is empirically known, the height H of the imaging device 63 and the inclination angle θ of the imaging device 63 can be obtained based on the deviation amount. In the present embodiment, the height H of the imaging device 63 is set to 78 mm, and the inclination angle θ of the imaging device 63 is set to 10 °.
  The inclination angle θ of the imaging device 63 may be 0 °. FIG. 12 is a schematic diagram showing a modification of the first detection device 61, and is an example in the case where the inclination angle θ of the imaging device 63 is 0 °. In this case, each of the imaging device 63 and the illumination light source 64 may be disposed at a position overlapping the outer peripheral edge ED along the normal direction of the first bonding surface SA1.
  A distance H1 between the first bonding surface SA1 and the center of the imaging surface 63a of the imaging device 63 (hereinafter referred to as a height H1 of the imaging device 63) detects the outer peripheral edge ED of the first bonding surface SA1. It is preferable to set the position at an easy position. For example, the height H1 of the imaging device 63 is preferably set in a range of 50 mm or more and 150 mm or less.
  The illumination light source 64 is fixed and arranged on the side opposite to the side on which the first sheet piece F1m is bonded in the first optical member bonded body PA1. The illumination light source 64 is arrange | positioned rather than the outer periphery ED on the outer side of 1st bonding surface SA1. In the present embodiment, the optical axis of the illumination light source 64 and the normal line of the imaging surface 63a of the imaging device 63 are parallel.
  In addition, the illumination light source 64 may be arrange | positioned at the side (namely, the same side as the imaging device 63) by which the 1st sheet piece F1m in 1st optical member bonding body PA1 was bonded.
  If the outer peripheral edge ED imaged by the imaging device 63 is illuminated by the illumination light emitted from the illumination light source 64, the optical axis of the illumination light source 64 and the normal line of the imaging surface 63a of the imaging device 63 intersect. It may be.
  FIG. 13 is a plan view showing a position where the outer peripheral edge of the bonding surface is detected. Inspection area | region CA is set on the conveyance path | route of 1st optical member bonding body PA1 shown to a figure. Inspection area | region CA is set in the position corresponding to the outer periphery ED of 1st bonding surface SA1 in liquid crystal panel P conveyed. In the figure, the inspection area CA is set at four locations corresponding to the four corners of the first bonding surface SA1 that is rectangular in plan view, and the corners of the first bonding surface SA1 are detected as the outer peripheral edge ED. It has a configuration. In the figure, among the outer peripheral edges of the first bonding surface SA1, the hook-shaped part corresponding to the corner is shown as the outer peripheral edge ED.
  The first detection device 61 in FIG. 14 detects the outer peripheral edge ED in the four inspection areas CA. Specifically, the imaging device 63 and the illumination light source 64 are arranged in each inspection area CA, and the first detection device 61 has a corner portion of the first bonding surface SA1 for each liquid crystal panel P to be transported. And the outer peripheral edge ED is detected based on the imaging data. Data of the detected outer peripheral edge ED is stored in the control unit 65 shown in FIG.
  In addition, if the outer periphery of 1st bonding surface SA1 is detectable, the setting position of test | inspection area | region CA is not restricted to this. For example, each inspection area | region CA may be arrange | positioned in the position corresponding to a part (for example, center part of each side) of each edge | side of 1st bonding surface SA1. In this case, each side (four sides) of the first bonding surface SA1 is detected as an outer peripheral edge.
  Moreover, the imaging device 63 and the illumination light source 64 are not limited to the configuration arranged in each inspection area CA, but are configured to be able to move along a movement path that is set along the outer peripheral edge ED of the first bonding surface SA1. It may be. In this case, the imaging device 63 and the illumination light source 64 are configured to detect the outer peripheral edge ED when the imaging device 63 and the illumination light source 64 are positioned in each inspection area CA, so that one imaging device 63 and one illumination light source 64 are provided. In this case, the outer periphery ED can be detected.
  The cutting position for the first sheet piece F1m by the first cutting device 15A is set based on the detection result of the outer peripheral edge ED of the first bonding surface SA1.
  For example, the control unit 65 shown in FIG. 11 is configured such that the first optical member F11 is outside the liquid crystal panel P (the outside of the first bonding surface SA1) based on the stored data of the outer peripheral edge ED of the first bonding surface SA1. ), The cut position of the sheet piece F1m can be set so as not to protrude. Further, the setting of the cut position is not necessarily performed by the control unit 65 of the first detection device 61, and the data of the outer peripheral edge ED detected by the first detection device 61 may be used and may be separately performed using calculation means. I do not care.
  The first cutting device 15A cuts the sheet piece F1m at the cutting position set by the control unit 65.
  Returning to FIG. 1, 15 A of 1st cutting devices detected the part corresponding to 1st bonding surface SA1 among the 1st sheet pieces F1m bonded by liquid crystal panel P, and the excess part of the outer side. The first optical member F11 (see FIG. 3) having a size corresponding to the first bonding surface SA1 is cut out along the cutting position set based on the outer peripheral edge ED. Thereby, 2nd optical member bonding body PA2 by which the 1st optical member F11 overlapped and bonded on the upper surface of liquid crystal panel P is formed.
  Here, “the portion corresponding to the first bonding surface SA1” means that the outer shape of the liquid crystal panel P (contour shape in plan view) is not less than the size of the display area of the liquid crystal panel P facing the first sheet piece F1m. ) And a region that avoids a functional part such as an electric component mounting portion in the liquid crystal panel P.
  In the present embodiment, the surplus portion is laser-cut along the outer peripheral edge of the liquid crystal panel P at three sides excluding the functional portion in the liquid crystal panel P having a rectangular shape in plan view, and the liquid crystal panel P at one side corresponding to the functional portion. It is possible to adopt a configuration in which the surplus portion is laser-cut at a position that appropriately enters the display region P4 side from the outer peripheral edge. For example, when the first substrate P1 is a TFT substrate, it is possible to adopt a configuration in which a cut is made at a position shifted by a predetermined amount from the outer peripheral edge of the liquid crystal panel P toward the display region P4 so as to exclude the functional portion on one side corresponding to the functional portion.
  FIG. 14 is a schematic diagram of the second detection device 62 that detects the outer periphery of the bonding surface. The 2nd detection apparatus 62 with which the film bonding system 1 of this embodiment is provided is the bonding surface (henceforth a 2nd bonding surface (henceforth, the liquid crystal panel P and 2nd sheet piece F2m) in 3rd optical member bonding body PA3. The image pickup device 63 that picks up the image of the outer peripheral edge ED of the bonding surface) SA2), the illumination light source 64 that illuminates the outer peripheral edge ED, and the image picked up by the image pickup device 63 are stored in the image. And a control unit 65 that performs calculation for detecting the outer peripheral edge ED. The second detection device 62 has the same configuration as the first detection device 61 described above.
  Such a second detection device 62 is provided on the panel conveyance upstream side of the second cutting device 15B in FIG. 1 and is provided between the second reversing device 14B and the second cutting device 15B. The 2nd detection apparatus 62 detects the outer periphery ED of 2nd bonding surface SA2 similarly to the above-mentioned 1st detection apparatus 61 in the test | inspection area | region set on the conveyance path | route of 3rd optical member bonding body PA3. .
  The cutting position of the second sheet piece F2m by the second cutting device 15B is set based on the detection result of the outer peripheral edge ED of the second bonding surface SA2.
  For example, the control unit 65 shown in FIG. 14 is configured such that the second optical member F12 is outside the liquid crystal panel P (the outside of the second bonding surface SA2) based on the stored data of the outer peripheral edge ED of the second bonding surface SA2. ), The cut position of the second sheet piece F2m can be set so as not to protrude. Further, the setting of the cut position is not necessarily performed by the control unit 65 of the second detection device 62, and may be performed by using a calculation unit separately using the data of the outer peripheral edge ED detected by the second detection device 62. I do not care.
  The second cutting device 15B cuts the second sheet piece F2m at the cutting position set by the control unit 65.
  The 2nd cutting device 15B is along the outer periphery ED which detected the part corresponding to 2nd bonding surface SA2 among the 2nd sheet pieces F2m bonded by liquid crystal panel P, and the excess part of the outer side. The second optical member F12 (see FIG. 3) having a size corresponding to the second bonding surface SA2 is cut out. Thereby, 4th optical member bonding body PA4 by which the 2nd optical member F12 was bonded on the upper surface of 2nd optical member bonding body PA2 is formed.
  Here, the “part corresponding to the second bonding surface SA2” means that the outer shape of the liquid crystal panel P (contour shape in plan view) is equal to or larger than the size of the display area of the opposing liquid crystal panel P in the second sheet piece F2m. ) And a region that avoids a functional part such as an electric component mounting portion in the liquid crystal panel P.
In the above embodiment, a CO 2 laser is used as an example of the cutting device 15, but the cutting device 15 is not limited to this. Other cutting means such as a cutting blade can be used as the cutting device 15.
  The second recovery device 40 includes a peeling roll 46 that rotates by winding an excess portion around the outer peripheral surface, and a suction table 41 that sucks the liquid crystal panel P. The suction table 41 is disposed below the downstream conveyor 7. The 2nd collection | recovery apparatus 40 peels and collects the excess part Y cut | disconnected from the 2nd sheet piece F2m from the part (corner part Ye of the excess part Y) corresponding to the corner | angular part of the 2nd sheet piece F2m.
  After the collection process, the suction table 41 moves the liquid crystal panel P in the direction of the second turning device 19 in a state where the long side and the short side of the liquid crystal panel P are inclined with respect to the rotation axis of the peeling roll 46.
The second turning device 19 uses the fourth optical member bonding body PA4 that has been transported in a state where the long side and the short side of the liquid crystal panel P are obliquely inclined with respect to the rotation axis 36a of the peeling roll 36 in the display area P4. It is swung so that it is conveyed in the direction along the side.
The defect inspection device 21 applies light from the lower surface side (backlight side) to the fourth optical member bonding body PA4 with the display surface side facing upward through the second turning device 19 from the upper surface side (display surface side). It images with the camera 21a and inspects the presence or absence of the defect (bonding defect etc.) of 4th optical member bonding body PA4 based on this imaging data.
  Hereinafter, although the 1st collection | recovery apparatus 30 is demonstrated, the 2nd collection | recovery apparatus 40 shall also have the same structure.
FIG. 5 is a schematic configuration diagram of the first recovery device 30 in the embodiment of the present invention. FIG. 6 is a plan view when the first collection device 30 according to the embodiment of the present invention peels off and collects the surplus portion Y.
As shown in FIG. 5 and FIG. 6, the first recovery device 30 adsorbs the peeling roll 36 that rotates by winding the surplus portion Y around the outer peripheral surface 36 s and the liquid crystal panel P, and the long side and the short side of the liquid crystal panel P. A suction table 31 that relatively moves the liquid crystal panel P in a direction orthogonal to the rotation axis 36a of the peeling roll 36 in a state where the side is inclined with respect to the rotation axis 36a of the peeling roll 36, and a part of the surplus portion Y are nipped. A feed roll 38. The rotation of the peeling roll 36, the movement of the suction table 31, and the nip of the surplus portion Y by the feed roll 38 are controlled by a control device.
  As shown in FIG. 6, the surplus portion Y is formed in a rectangular frame shape in plan view. In FIG. 6, reference numeral Y <b> 1 is a long part along the long side of the liquid crystal panel P in the surplus part Y, reference sign Y <b> 2 is a short part along the short side of the liquid crystal panel P in the surplus part Y, and reference sign Ye is a surplus part. Y is a corner where the end of the long portion Y1 and the end of the short portion Y2 overlap. Reference sign θ1 is an angle formed between the long side of the liquid crystal panel P and the rotation axis 36a of the peeling roll 36, and reference sign θ2 is an angle formed between the short side of the liquid crystal panel P and the rotation axis 36a of the peeling roll 36.
  In the present embodiment, the suction table 31 is in a state where the long side and the short side of the liquid crystal panel P are inclined by 45 ° with respect to the rotation shaft 36a of the peeling roll 36 (θ1 = θ2 = 45 °) under the control of the control device. The liquid crystal panel P is relatively moved in a direction orthogonal to the rotation axis 36 a of the peeling roll 36.
  The peeling roll 36 is disposed in parallel with a direction orthogonal to the panel conveyance direction. As shown in FIG. 5, the peeling roll 36 incorporates a chuck unit 37 that chucks the corner portion Ye of the surplus portion Y with a mechanical force. The peeling roll 36 is configured to take up the surplus portion Y by rotating in a state where the corner portion Ye of the surplus portion Y is chucked by the chuck unit 37 based on the control of the control device.
  The chuck unit 37 includes a chuck portion 37a for chucking the corner portion Ye of the surplus portion Y, and a piston / cylinder mechanism 37b connected to the chuck portion 37a.
  The chuck portion 37 a is exposed from an opening 36 h formed in a part of the peeling roll 36. The chuck portion 37a is positioned below the peeling roll 36 in an initial state before chucking the corner portion Ye of the surplus portion Y, and is open so that the corner portion Ye of the surplus portion Y can be chucked.
  The piston / cylinder mechanism 37b slidably holds the chuck portion 37a. The piston / cylinder mechanism 37b adjusts the open state before the chuck portion 37a chucks the corner portion Ye of the surplus portion Y and the closed state when the corner portion Ye of the surplus portion Y is chucked.
  The suction table 31 sucks and holds the liquid crystal panel P (in the following description, including the second optical member bonding body PA2), for example, by air suction from below.
  The suction table 31 sucks a table main body 32 provided so as to be movable along the panel conveyance direction, a stage 33 supported by the table main body 32 so as to be movable up and down, and a lower surface inside the liquid crystal panel P (display area P4). An inner suction pad 34 supported by the stage 33 and an outer suction pad 35 supported by the stage 33 so as to suck the lower surface of the outside (electrical component mounting portion or the like) of the liquid crystal panel P are included.
  The table main body 32 is movable between a lower position of the first cutting device 15A and a lower position of the first turning device 18 shown in FIG.
  The liquid crystal panel P includes a base plate portion (corresponding to the first substrate P1) P6 made of, for example, a TFT (Thin Film Transistor) substrate, and a counter plate portion P7 disposed to face the base plate portion P6. The counter plate portion P7 includes a relatively small substrate (corresponding to the second substrate P2) facing the base plate portion P6 and a liquid crystal layer P3 sealed therebetween. In the first recovery device 30, the liquid crystal panel P is arranged with the backlight side (base plate portion P6 side) on the upper side.
  The inner suction pad 34 of the stage 33 is attracted to the lower surface of the thick plate portion P8 including the opposing plate portion P7 in the liquid crystal panel P, and the outer suction pad 35 of the stage 33 is a base outside the thick plate portion P8 in the liquid crystal panel P. The plate portion P6 is attracted to the lower surface of the main thin plate portion P9. The lower surface of the thick plate portion P8 and the lower surface of the thin plate portion P9 are connected in steps, and the liquid crystal panel P is positioned with respect to the suction table 31 by contacting the outer suction pad 35 to a substantially vertical step surface therebetween. . The display area P4 of the liquid crystal panel P is formed within the outer shape of the thick plate portion P8.
  The suction table 31 peels a part of the surplus portion Y by relative displacement below the peeling roll 36 in a state where the corner portion Ye of the surplus portion Y is chucked by the chuck unit 37 based on the control of the control device. It is configured as follows.
  Based on the control of the control device, the feed roll 38 is moved in the same direction as the winding direction of the excess portion Y by the separation roll 36 after the suction table 31 is relatively displaced below the separation roll 36 and then a part of the excess portion Y is nipped. The surplus portion Y is fed in the direction (tangential direction of the rotation direction of the roll 38a at the nip portion by the feed roll 38).
  The stage 33 is configured to suck the suction pads 34 and 35 to the lower surface of the corresponding part of the liquid crystal panel P when the stage 33 is in the lowered position under the control of the control device. From this state, when the stage 33 is displaced to the raised position, the liquid crystal panel P attracted by the stage 33 is also raised integrally.
Next, the operation of the first recovery device 30 will be described.
7-9 is explanatory drawing which shows the effect | action of the 1st collection | recovery apparatus 30 in embodiment of this invention. 7 to 9, for the sake of convenience, the moving direction of the suction table 31 is shown opposite to the panel conveying direction shown in FIG.
First, as shown in FIG. 7A, when the stage 33 is in the lowered position, the suction table 31 moves the corner portion Ye of the surplus portion Y below the chuck portion 37 a of the peeling roll 36.
In the present embodiment, as shown in FIG. 6, the liquid crystal panel P is moved in a state where the long side and the short side of the liquid crystal panel P are inclined 45 ° with respect to the rotation shaft 36 a of the peeling roll 36 by the movement of the suction table 31. Is moved in a direction orthogonal to the rotation shaft 36 a of the peeling roll 36. Thereby, the long part Y1 and the short part Y2 of the surplus part Y are peeled equally.
  In the present embodiment, only the suction table 31 is moved without moving the peeling roll 36 under the control of the control device, but the form of relative movement is not limited to this. For example, in a form in which the suction table 31 and the peeling roll 36 are moved relative to each other by moving only the peeling roll 36 without moving the suction table 31 or by moving both the suction table 31 and the peeling roll 36. The present invention can also be applied.
  Next, as shown in FIG. 7B, the stage 33 is raised to bring the corner portion Ye of the surplus portion Y close to the chuck portion 37a. For example, the corner portion Ye of the surplus portion Y is moved so as to enter the open portion of the chuck portion 37a.
  Next, as shown in FIG. 8A, the piston / cylinder mechanism 37b slides the chuck portion 37a, whereby the corner portion Ye of the surplus portion Y is chucked by the chuck portion 37a.
  Next, as shown in FIG. 8B, the stage 33 is lowered in a state where the corner portion Ye of the surplus portion Y is chucked by the chuck portion 37a, and a part of the surplus portion Y is peeled off. Thereby, the corner | angular part Ye of the surplus part Y is lifted by the chuck | zipper part 37a.
  As shown in FIG. 6, the contact area between the corner portion Ye of the surplus portion Y and the liquid crystal panel P is based on the contact area between the long portion Y1 of the surplus portion Y and the liquid crystal panel P or the contact area between the short portion Y2 and the liquid crystal panel P. Is also small.
  When the surplus portion Y is peeled off from the longitudinal portion Y1 or the short portion Y2 of the surplus portion Y, a large load is required because the contact area with the liquid crystal panel P is large, and excessive force is applied to the surplus portion Y. A part of the surplus portion Y may be broken and the recovery of the surplus portion Y may be interrupted.
  On the other hand, in this embodiment, since the surplus part Y is peeled off from the corner part Ye of the surplus part Y, it peels compared with the case where it peels from the longitudinal part Y1 or the short part Y2 of the surplus part Y. The load at the time is reduced and it becomes easy to peel off.
  Next, as shown in FIG. 8C, after the corner portion Ye of the surplus portion Y is lifted by the chuck portion 37a, the feed roll 38 nips a part of the surplus portion Y. When a part of the surplus portion Y is nipped, the peeling position of the surplus portion Y is regulated.
  Here, a power transmission mechanism 39 that transmits the rotational force of the peeling roll 36 to the feeding roll 38 is disposed between the peeling roll 36 and the feeding roll 38. The power transmission mechanism 39 includes a first gear 39a disposed in contact with the peeling roll 36, and a second gear 39b disposed in contact with the first gear 39a and the roll 38a of the feed roll 38. . Accordingly, the first gear 39a, the second gear 39b, and the feed roll 38 are configured to rotate in synchronization with the rotation of the peeling roll 36.
  The surplus portion Y is wound while being peeled off from the liquid crystal panel P by the rotation of the peeling roll 36. Specifically, the peeling roll 36 rotates while the feeding roll 38 nips a part of the surplus portion Y and the corner portion Ye of the surplus portion Y is chucked by the chuck portion 37a, so that the surplus portion Y is taken up. It is done. The feed roll 38 sends the surplus portion Y in the same direction as the winding direction of the surplus portion Y by the peeling roll 36 in synchronization with the rotation of the peeling roll 36 by the power transmission mechanism 39.
  As shown in FIG. 9 (a), when the peeling roll 36 further rotates, the portions remaining in the surplus portion Y without being peeled (the long portion Y1 and the short portion Y2 of the surplus portion Y) are from the downstream side of the panel conveyance. Gradually peeled off.
  At this time, the suction table 31 tilts the liquid crystal panel P in a direction perpendicular to the rotation axis 36 a of the peeling roll 36 (in a state where the long side and the short side of the liquid crystal panel P are inclined with respect to the rotation axis 36 a of the peeling roll 36 ( It moves in the direction of the arrow in FIG. The suction table 31 moves in the direction in synchronization with the rotation of the peeling roll 36. Thus, in synchronization with the rotation of the peeling roll 36, the first gear 39a, the second gear 39b (see FIG. 8), and the feed roll 38 rotate, and the suction table 31 moves in the above direction. ing.
  Next, as shown in FIG. 9B, the suction table 31 further moves in the above direction and leaves the peeling roll 36. On the other hand, the excess portion Y wound around the peeling roll 36 is released from the nip by the feed roll 38 by the rotation of the peeling roll 36. Then, the surplus portion Y is restored from the wound state to a linear shape in a side view by its own elastic force.
  And as shown in FIG.9 (c), when the chuck | zipper part 37a is opened by control of a control apparatus, the excess part Y is discarded by the collection | recovery box 50 arrange | positioned below.
  In addition, after collection | recovery of the surplus part Y, for example, the adsorption | suction table 31 returns to the original position, and the stage 33 descends a predetermined amount. Thereafter, after the suction table 31 sucks the liquid crystal panel P on the upstream side, the same processes as described above are repeated.
As explained above, according to the film bonding system 1 of this embodiment, after bonding the sheet piece FXm larger than the display area P4 to the liquid crystal panel P, by cutting off the surplus portion Y of the sheet piece FXm, An optical member having a size corresponding to the bonding surface of the liquid crystal panel P and the sheet piece FXm can be formed on the surface of the liquid crystal panel P. As a result, the optical member can be accurately provided up to the display area P4, and the frame area outside the display area P4 can be narrowed to enlarge the display area and downsize the device.
And when recovering the surplus part Y cut off from the sheet piece FXm, it can be peeled off with a weak force because the contact area is small by peeling off from the corner part Ye of the surplus part Y, and a part of the surplus part Y is It is possible to suppress the tearing and continuously recover the surplus portion Y without interruption without interrupting the recovery of the surplus portion Y.
  Further, in the state where the suction table 31 tilts the long side and the short side of the liquid crystal panel P obliquely with respect to the rotation axis 36a of the peeling roll 36, the liquid crystal panel P is perpendicular to the rotation axis 36a of the peeling roll 36 (FIG. 9). Since it moves to (arrow direction of (a)), when peeling the surplus part Y, it is suppressed that an excessive force is applied to the peeling part. Therefore, the entire frame-like surplus portion Y is peeled off from the liquid crystal panel P without difficulty.
  Further, since the feed roll 38 rotates in synchronization with the rotation of the peeling roll 36, the entire frame-like surplus portion Y is peeled off from the liquid crystal panel P without difficulty.
  Further, the suction table 31 tilts the liquid crystal panel P in a direction orthogonal to the rotation axis 36 a of the peeling roll 36 in a state where the long side and the short side of the liquid crystal panel P are inclined 45 ° with respect to the rotation axis 36 a of the peeling roll 36. In order to move, the long portion Y1 and the short portion Y2 of the surplus portion Y are evenly peeled off. Therefore, the entire frame-like surplus portion Y is peeled off from the liquid crystal panel P without difficulty.
  In the present embodiment, a mechanical chuck that chucks the corner portion Ye of the surplus portion Y with a mechanical force has been described as the chuck unit 37, but is not limited thereto. For example, a vacuum chuck that fixes the corner portion Ye of the surplus portion Y by vacuum suction may be used.
  In the present embodiment, the example in which the recovery device peels and recovers from the corner portion Ye of the surplus portion Y has been described. However, the present invention is not limited to this.
For example, as shown in FIG. 10, the recovery device may peel and recover from a part CP of the short part Y2 of the surplus part Y. In this case, the suction table 31 allows the liquid crystal panel P to be peeled off by the control device in a state where the long side of the liquid crystal panel P is orthogonal to the rotation axis 36a of the peeling roll 36 (θ3 = 90 °). It is comprised so that it may move relatively in the direction orthogonal to the rotating shaft 36a. Then, a portion CP of the short portion Y2 of the surplus portion Y is chucked by the chuck portion 37a (see FIG. 5). Thereafter, the surplus portion Y is peeled off and collected by the same operation as in the above embodiment.
Even in such a configuration, the present invention can be applied.
  Further, the recovery device may peel off and recover from a part of the longitudinal portion Y1 of the surplus portion Y. That is, the recovery device only needs to be configured to chuck the surplus portion Y, peel it from the optical member, and recover it.
  In addition, this invention is not limited to the said embodiment, For example, the surplus part Y is not restricted to the frame shape of a planar view rectangle, Various planar view shapes, such as L shape, may be sufficient.
  In addition, this invention is not restricted to the said embodiment, For example, although the case where a polarizing film was bonded to a liquid crystal panel was demonstrated, as an optical display component to which an optical member is affixed, it is not restricted to a liquid crystal panel, but organic It can also be applied to an EL panel, and the optical member to be bonded is not limited to a polarizing film, but can also be applied to an antireflection film, a light diffusion film, and the like.
  In the film bonding system 1 of the said embodiment, the outer periphery of the bonding surface is detected for every some liquid crystal panel P using a detection apparatus, and it bonds for each liquid crystal panel P based on the detected outer periphery. The cutting positions of the sheet pieces F1m and F2m thus set are set. Accordingly, since the optical member having a desired size can be separated regardless of the individual differences in the sizes of the liquid crystal panel P and the sheet pieces F1m and F2m, the individual differences in the sizes of the liquid crystal panel P and the sheet pieces F1m and F2m. Therefore, the display area can be enlarged and the device can be downsized by reducing the frame portion around the display area.
  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but it goes without saying that the present invention is not limited to such examples. Various shapes, combinations, and the like of the constituent members shown in the above-described examples are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.
  DESCRIPTION OF SYMBOLS 1 ... Film bonding system (production system of an optical display device), 13 ... 1st bonding apparatus (bonding apparatus), 15 ... Cutting apparatus, 15A ... 1st cutting apparatus (cutting apparatus), 15B ... 2nd cutting apparatus (Cutting device), 17 ... second bonding device (bonding device), 30 ... first recovery device (collection device), 31, 41 ... suction table, 36, 46 ... peeling roll, 36a ... rotating shaft, 37 ... Chuck unit, 38 ... feed roll, 40 ... second recovery device (collection device), 61 ... first detection device (detection device), 62 ... second detection device (detection device), F ... optical member sheet, F1m ... first 1 sheet piece (sheet piece), F2m ... second sheet piece (sheet piece), P ... liquid crystal panel (optical display component), P4 ... display region, R1 ... raw roll, Y ... excess part, Ye ... excess part Corner (corresponds to the corner of the excess sheet piece) Part), PA1 ... 1st optical component bonding body (bonding body), PA3 ... 3rd optical component bonding body (bonding body), ED ... outer periphery of the 1st bonding surface, outer periphery of the 2nd bonding surface, SA1 ... 1st bonding surface (bonding surface), SA2 ... 2nd bonding surface (bonding surface)

Claims (7)

  1. An optical display device production system in which an optical member is bonded to an optical display component,
    While the belt-shaped optical member sheet having a width wider than the length of either one of the long side and the short side of the display area of the optical display component is unwound from the original roll, the optical member sheet is removed from the display area. After cutting with a length longer than the length of either the other of the long side and the short side into a sheet piece, a laminating apparatus that bonds the sheet piece to the optical display component to form a bonded body,
    In the bonding body, a detection device for detecting an outer peripheral edge of a bonding surface between the sheet piece and the optical display component;
    In the said bonding body, the excess part arrange | positioned outside the part corresponding to the said bonding surface from the said sheet piece bonded to the said optical display component is cut | disconnected along the said outer periphery, and it respond | corresponds to the said bonding surface. A cutting device for forming the optical member of a size to
    And a recovery device that chucks the excess portion and separates and recovers the excess portion from the optical member.
  2.   2. The optical display device production system according to claim 1, wherein the collection device peels and collects the surplus portion from a portion corresponding to a corner portion of the sheet piece.
  3.   The collection device adsorbs the optical display component and a peeling roll that rotates by winding the surplus portion around an outer peripheral surface, and the long side and the short side of the optical display component are inclined with respect to the rotation axis of the peeling roll. The production system for an optical display device according to claim 1, further comprising: a suction table that relatively moves the optical display component in a direction orthogonal to a rotation axis of the peeling roll in a state where the optical display component is tilted to the right.
  4.   The optical display according to claim 3, wherein the peeling roll has a built-in chuck unit that chucks the surplus portion, and the surplus portion is wound by rotating in a state where the surplus portion is chucked by the chuck unit. Device production system.
  5.   The production of the optical display device according to claim 4, wherein the suction table peels a part of the surplus portion by relative displacement below the peeling roll in a state where the surplus portion is chucked by the chuck unit. system.
  6.   After the suction table is relatively displaced below the peeling roll, the recovery device nips a part of the excess part and sends the excess part in the same direction as the winding direction of the excess part by the peeling roll. The optical display device production system according to claim 5, further comprising a feed roll.
  7.   The suction table relatively moves the optical display component in a direction perpendicular to the rotation axis of the peeling roll in a state where the long side and the short side of the optical display component are inclined by 45 ° with respect to the rotation axis of the peeling roll. The production system of the optical display device according to any one of claims 3 to 6.
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WO2018084044A1 (en) * 2016-11-01 2018-05-11 日東電工株式会社 Method for producing optical display device
CN109891307A (en) * 2016-11-01 2019-06-14 日东电工株式会社 The laminated body of optical display, its manufacturing method and manufacture system
KR20200012021A (en) 2017-09-28 2020-02-04 닛토덴코 가부시키가이샤 Method of manufacturing laminated body of optical display device
KR20200013070A (en) 2017-09-28 2020-02-05 닛토덴코 가부시키가이샤 Method for manufacturing a laminate of optical display device

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JP2003107452A (en) * 2001-09-17 2003-04-09 Internatl Business Mach Corp <Ibm> Method of manufacturing liquid crystal display panel, method of manufacturing liquid crystal display device, and device for manufacturing the liquid crystal display device
JP2005037418A (en) * 2002-07-04 2005-02-10 Fuji Photo Film Co Ltd Method and apparatus for bonding polarizing plate
JP2007288010A (en) * 2006-04-19 2007-11-01 Lintec Corp Device and method for cutting sheet
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018084044A1 (en) * 2016-11-01 2018-05-11 日東電工株式会社 Method for producing optical display device
CN109891481A (en) * 2016-11-01 2019-06-14 日东电工株式会社 The method for manufacturing optical display
CN109891307A (en) * 2016-11-01 2019-06-14 日东电工株式会社 The laminated body of optical display, its manufacturing method and manufacture system
KR20190070933A (en) 2016-11-01 2019-06-21 닛토덴코 가부시키가이샤 Laminate of optical display device, manufacturing method thereof, and manufacturing system
KR20190075957A (en) 2016-11-01 2019-07-01 닛토덴코 가부시키가이샤 Method for manufacturing optical display device
KR20200012021A (en) 2017-09-28 2020-02-04 닛토덴코 가부시키가이샤 Method of manufacturing laminated body of optical display device
KR20200013070A (en) 2017-09-28 2020-02-05 닛토덴코 가부시키가이샤 Method for manufacturing a laminate of optical display device

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