JPWO2014185100A1 - Optical display device production system - Google Patents

Abstract

An optical display device production system unwinds a belt-shaped optical member sheet having a width corresponding to a display area of an optical display component from a raw roll together with a separator sheet, and leaves the separator sheet to leave the optical member sheet in a length corresponding to the display area. Then cut and make an optical member, hold a supply unit including a supply line for supplying the optical member, and a plurality of optical members sequentially supplied by one supply line, alternately pasting each holding surface, A plurality of bonding parts for bonding the optical members held on the respective holding surfaces to separate optical display parts, and a moving device for moving the plurality of bonding parts between the supply part and the optical display parts, Including.

Description

The present invention relates to an optical display device production system.
This application claims priority based on Japanese Patent Application No. 2013-105585 for which it applied to Japan on May 17, 2013, and uses the content here.

  2. Description of the Related Art Conventionally, an optical display device production system for producing an optical display device by bonding an optical member such as a polarizing plate to an optical display component such as a liquid crystal panel is known. For example, Patent Literature 1 discloses a liquid crystal panel continuous conveyance system in which a bonding unit that sequentially adheres polarizing plates to both surfaces of a liquid crystal panel to form a liquid crystal display is arranged in a series of conveyance lines that convey the liquid crystal panel. Has been.

Japanese Patent No. 4723045

However, in the configuration of Patent Document 1, when a polarizing plate is bonded to the liquid crystal panel, one bonding portion is provided for one supply line of the polarizing plate. When a long time is required, the supply of the polarizing plate in the supply line is stagnant. As a result, the production efficiency of the liquid crystal display is reduced.
On the other hand, in order to suppress a decrease in production efficiency, it is conceivable to provide a polarizing plate supply line and a bonding portion. However, in order to install a polarizing plate supply line and a bonding section, a large installation space is required and a huge facility cost is required.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an optical display device production system capable of suppressing a decrease in production efficiency of an optical display device.

In order to achieve the above object, the present invention employs the following means.
(1) The optical display device production system according to the first aspect of the present invention is an optical display device production system in which an optical member is bonded to an optical display component, wherein the optical display device is in a display area of the optical display component. A belt-shaped optical member sheet of a corresponding width is unwound together with a separator sheet from a raw roll, and the optical member sheet is cut with a length corresponding to the display area leaving the separator sheet, thereby forming the optical member, A supply unit including a supply line for supplying the optical member, and a plurality of the optical members sequentially supplied by the one supply line are alternately attached and held on each holding surface, and each holding surface is held on each holding surface. A plurality of bonding sections for bonding the held optical members to the separate optical display components, and the plurality of bonding sections as the supply section and the optical display component Characterized in that it comprises a and a moving device that moves between.

  (2) In the production system for an optical display device according to (1), the supply unit includes a peeling unit that peels the optical member from the separator sheet, and the plurality of bonding units are first bondings. Part and a 2nd bonding part, and as for the said moving device, the said 1st bonding part bonds the said optical member hold | maintained at the said holding surface of a said 1st bonding part to the said optical display component. The second bonding portion is moved to the peeling portion, and the second bonding portion is held on the holding surface of the second bonding portion by the optical display. When bonding to a component, the first bonding portion may be moved to the peeling portion.

  (3) In the optical display device production system according to (2), the optical display component to which the optical member held on the holding surface of the first bonding portion is bonded is sucked and held. A first suction stage having a suction surface, and a second suction stage having a suction surface that sucks and holds the optical display component to which the optical member held on the holding surface of the second bonding portion is bonded. And the moving device moves the first bonding portion between the peeling portion and the optical display component held by the first suction stage, and the second bonding portion. You may move between the said peeling part and the said optical display components hold | maintained at said 2nd adsorption | suction stage.

  (4) In the production system for an optical display device according to (3), a collection stage that is disposed at a position that does not interfere with the first suction stage and the second suction stage and collects defective optical members including defects is provided. Furthermore, the said moving apparatus may move the said bonding part holding the said inferior goods optical member to the said collection | recovery stage.

  (5) In the production system for an optical display device according to (4), the collection stage is disposed on an extension line of the supply line, and the first adsorption stage and the second adsorption stage are the collection stage. It may be arranged at a position facing each other across the.

(6) An optical display device production system according to the second aspect of the present invention is an optical display device production system in which an optical member is bonded to an optical display component. A strip-shaped optical member sheet having a width wider than the length of either one of the long side and the short side is unwound together with the separator sheet from the original roll, and the optical member sheet is left in the display area while leaving the separator sheet. A sheet piece is cut by a length longer than the length of one of the long side and the short side, a supply unit including a supply line for supplying the sheet piece, and one supply line sequentially A plurality of supplied sheet pieces are alternately pasted and held on the holding surfaces, and the sheet pieces held on the holding surfaces are respectively separated into the optical display components. A plurality of bonding sections to be combined, a moving device for moving the plurality of bonding sections between the supply section and the optical display component, and a bonding surface from the sheet piece bonded to the optical display component And a cutting device that cuts off an excess portion disposed outside the portion corresponding to, and forms the optical member having a size corresponding to the bonding surface.
In addition, the "bonding surface" in the said structure refers to the surface facing the sheet piece of an optical display component, and specifically, "the outer periphery of a bonding surface" is a sheet piece in an optical display component. It refers to the outer peripheral edge of the bonded substrate.
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” refers to 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.

  (7) The optical display device production system according to (6) further includes a detection device that detects an outer peripheral edge of a bonding surface between the optical display component on which the sheet piece is bonded and the sheet piece. The cutting device may cut the sheet piece along an outer peripheral edge of the bonding surface between the optical display component and the sheet piece detected by the detection device.

  (8) In the production system for an optical display device according to (6) or (7), the supply unit includes a peeling unit that peels the sheet piece from the separator sheet, and the plurality of bonding units include: The moving device includes the first bonding unit and the second bonding unit, and the moving device is configured such that the first bonding unit includes the sheet piece held on the holding surface of the first bonding unit. The sheet piece in which the second bonding portion is moved to the peeling portion and the second bonding portion is held on the holding surface of the second bonding portion when bonding to the second bonding portion. The first bonding portion may be moved to the peeling portion when the optical display component is bonded to the optical display component.

  (9) In the optical display device production system according to (8) above, the optical display component to which the sheet piece held on the holding surface of the first bonding portion is bonded is sucked and held. A first suction stage having a suction surface, and a second suction stage having a suction surface that sucks and holds the optical display component to which the sheet piece held on the holding surface of the second bonding portion is bonded. And the moving device moves the first bonding portion between the peeling portion and the optical display component held by the first suction stage, and the second bonding portion. You may move between the said peeling part and the said optical display components hold | maintained at said 2nd adsorption | suction stage.

  (10) In the production system for an optical display device according to (9), a collection stage that is disposed at a position that does not interfere with the first suction stage and the second suction stage and collects defective sheet pieces including defects is provided. Furthermore, the said moving apparatus may move the said bonding part holding the said inferior-goods sheet piece to the said collection | recovery stage.

  (11) In the production system for an optical display device according to (10), the collection stage is disposed on an extension line of the supply line, and the first adsorption stage and the second adsorption stage are the collection stage. It may be arranged at a position facing each other across the.

  ADVANTAGE OF THE INVENTION According to this invention, the production system of the optical display device which can suppress the fall of the production efficiency of an optical display device can be provided.

It is a schematic block diagram of the film bonding system which concerns on 1st embodiment. It is a top view of a liquid crystal panel. It is AA sectional drawing of FIG. It is sectional drawing of the optical member sheet | seat which concerns on 1st embodiment. It is a top view of the film bonding system which concerns on 1st embodiment. It is a schematic side view of the 1st bonding apparatus which concerns on 1st embodiment. It is a schematic perspective view of the 1st bonding apparatus which concerns on 1st embodiment. It is a schematic plan view of the 1st bonding apparatus which concerns on 1st embodiment. It is a schematic front view of the 1st bonding apparatus which concerns on 1st embodiment. It is a schematic side view of the 1st bonding apparatus at the time of supply of a liquid crystal panel. It is a schematic block diagram of the film bonding system which concerns on 2nd embodiment. It is a top view of the film bonding system which concerns on 2nd embodiment. It is a figure which shows an example of the determination method of the bonding position of the sheet piece with respect to a liquid crystal panel. It is a figure which shows an example of the determination method of the bonding position of the sheet piece with respect to a liquid crystal panel. It is a schematic diagram of the bonding apparatus applied to a film bonding system. It is a schematic diagram of the bonding apparatus applied to a film bonding system. It is a top view which shows the detection process of the edge of a bonding surface. It is a schematic diagram of a detection apparatus. It is a schematic diagram which shows the modification of a detection apparatus.

  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 1 of this embodiment. The film laminating system 1 is for laminating a film-shaped optical member such as a polarizing film, a retardation film, or a brightness enhancement film on 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 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 conforms to the outer shape of the first substrate P1 in plan view, and a region that fits inside the outer periphery of the liquid crystal layer P3 in plan view is defined as a display region P4.

  3 is a cross-sectional view taken along the line AA in FIG. The front and back surfaces of the liquid crystal panel P are cut out from the first, second, and third optical member sheets F1, F2, and F3 (refer to FIG. 1; hereinafter, sometimes collectively referred to as the optical member sheet FX) having a long strip shape. The first, second, and third optical members F11, F12, and F13 (hereinafter may be collectively referred to as the optical member F1X) are appropriately bonded. In the present embodiment, the first optical member F11 and the third optical member F13 as polarizing films are bonded to both the backlight side and the display surface side of the liquid crystal panel P, respectively. On the surface, a second optical member F12 as a brightness enhancement film is further bonded to the first optical member F11.

  FIG. 4 is a partial cross-sectional view of the optical member sheet FX. 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. 4) 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 that provides an effect such as anti-glare including hard coat treatment and anti-glare treatment for protecting the outermost surface of the liquid crystal display element. 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 body F1a via the adhesive layer F2a.

FIG. 5 is a plan view (top view) of the film bonding system 1, and the film bonding system 1 will be described with reference to FIGS. In the figure, an arrow F indicates the transport direction of the liquid crystal panel P.
In the following description, the upstream side of the liquid crystal panel P in the transport direction is referred to as the panel transport upstream side, and the downstream side of the liquid crystal panel P in the transport direction is referred to as the panel transport downstream side.

  The film bonding system 1 sets the predetermined position of the main conveyor 5 as the start point 5a and the end point 5b of the bonding process. The film laminating system 1 conveys the liquid crystal panel P from the starting point 5a to the first and second sub-conveyors 6 and 7 extending in the direction perpendicular to the main conveyor 5 and from the starting point 5a to the first starting position 6a of the first sub-conveyor 6. The first transport device 8, the cleaning device 9 provided on the first sub-conveyor 6, the first rotary index 11 provided on the panel transport downstream side of the first sub-conveyor 6, and the first of the first sub-conveyor 6. A second transport device 12 that transports the liquid crystal panel P from the end position 6 b to the first rotary first position 11 a of the first rotary index 11, and a first bonding device 13 and a second paste that are provided around the first rotary index 11. A combination device 15 and a film peeling device 14.

  Moreover, the film bonding system 1 includes a second rotary index 16 provided on the panel transport downstream side of the first rotary index 11 and a second rotary index 16 from the first rotary terminal position 11 b of the first rotary index 11. A third transport device 17 that transports the liquid crystal panel P to the rotary starting position 16a, a third bonding device 18 and an inspection device 19 provided around the second rotary index 16, and a panel transport downstream side of the second rotary index 16 A second conveyor 7 provided on the second rotary conveyor 16, a fourth conveyor device 21 for conveying the liquid crystal panel P from the second rotary end position 16b of the second rotary index 16 to the second starting position 7a of the second sub conveyor 7, The liquid crystal panel P is moved from the second terminal position 7b of the sub-conveyor 7 to the end point 5b of the main conveyor 5. And a fifth feeder 22 for feeding.

The film laminating system 1 performs a predetermined process sequentially on the liquid crystal panel P while transporting the liquid crystal panel P using the lines formed by the drive-type main conveyor 5, the sub-conveyors 6 and 7, and the rotary indexes 11 and 16. Apply. The liquid crystal panel P is conveyed on the line with its front and back surfaces being horizontal.
The liquid crystal panel P is conveyed, for example, in the main conveyor 5 with the short side of the display area P4 along the conveying direction, and in each of the sub conveyors 6 and 7 orthogonal to the main conveyor 5, the long side of the display area P4 is conveyed in the conveying direction. In each rotary index 11, 16, the long side of the display area P 4 is conveyed in a direction along the radial direction of each rotary index 11, 16. Reference numeral 5c in the figure indicates a rack that flows on the main conveyor 5 in correspondence with the liquid crystal panel P.

  A sheet piece (corresponding to the optical member F1X) of the bonding sheet F5 cut out to a predetermined length from the belt-shaped optical member sheet FX 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 device 25 as an electronic control device.

The first transport device 8 holds the liquid crystal panel P and transports it freely in the vertical and horizontal directions.
The first transport device 8 transports, for example, the liquid crystal panel P held by suction to the first starting position 6a (the left end in FIG. 5) of the first sub-conveyor 6 in a horizontal state, and cancels the suction at the position. Then, the liquid crystal panel P is delivered to the first sub-conveyor 6.

The cleaning device 9 is, for example, a water-washing type that performs brushing and rinsing of the front and back surfaces of the liquid crystal panel P and then drains the front and back surfaces of the liquid crystal panel P. The cleaning device 9 may be a dry type that performs static electricity removal and dust collection on the front and back surfaces of the liquid crystal panel P.
The second transport device 12 holds the liquid crystal panel P and transports it freely in the vertical and horizontal directions. For example, the second transport device 12 transports the liquid crystal panel P held by suction to the first rotary starting position 11a of the first rotary index 11 in a horizontal state, releases the suction at the position, and moves the liquid crystal panel P to the first position. Transfer to one rotary index 11.

  The first rotary index 11 is a disk-shaped rotary table having a rotation axis along the vertical direction, and rotates clockwise with the left end portion in plan view of FIG. 5 as the first rotary starting position 11a. The 1st rotary index 11 makes the position (upper end part of FIG. 5) rotated 90 degrees clockwise from the 1st rotary first departure position 11a the 1st bonding carrying in / out position 11c.

  In this 1st bonding carrying in / out position 11c, liquid crystal panel P is carried in into the 1st bonding apparatus 13 with the conveyance robot not shown. The liquid crystal panel P is bonded to the first optical member F11 on the backlight side by the first bonding device 13. The liquid crystal panel P to which the first optical member F11 is bonded is carried into the first bonding carry-in / out position 11c of the first rotary index 11 from the first bonding device 13 by a transport robot (not shown).

The 1st rotary index 11 makes the film peeling position 11e the position rotated 45 degrees clockwise from the 1st bonding carrying in / out position 11c (upper right end part of FIG. 5). At the film peeling position 11e, the film peeling device 14 peels the surface protective film F4a of the first optical member F11.
The 1st rotary index 11 makes the position (right end position of FIG. 5) rotated 45 degrees clockwise from the film peeling position 11e the 2nd bonding carrying in / out position 11d.

  At this second bonding carry-in / out position 11d, the liquid crystal panel P is carried into the second bonding apparatus 15 by a transport robot (not shown). In the liquid crystal panel P, the second optical member F <b> 12 on the backlight side is bonded by the second bonding device 15. The liquid crystal panel P on which the second optical member F12 is bonded is carried into the second bonding carry-in / out position 11d of the first rotary index 11 from the second bonding device 15 by a transport robot (not shown).

The 1st rotary index 11 makes the position (lower end part of FIG. 5) rotated 90 degrees clockwise from the 2nd bonding carrying in / out position 11d the 1st rotary terminal position 11b. Carrying out by the 3rd conveying apparatus 17 is made | formed at this 1st rotary terminal position 11b.
The third transport device 17 holds the liquid crystal panel P and transports it freely in the vertical and horizontal directions. The third transport device 17 transports, for example, the liquid crystal panel P held by suction to the second rotary starting position 16a of the second rotary index 16, and reverses the front and back of the liquid crystal panel P during this transport, so that the second rotary starting position The suction is released at 16 a and the liquid crystal panel P is transferred to the second rotary index 16.

  The second rotary index 16 is a disk-shaped rotary table having a rotation axis along the vertical direction, and rotates clockwise with the upper end portion in plan view of FIG. 5 as the second rotary starting position 16a. The 2nd rotary index 16 makes the position (right end part of FIG. 5) rotated 90 degrees clockwise from the 2nd rotary first departure position 16a the 3rd bonding carrying in / out position 16c.

  At the third bonding carry-in / out position 16c, the liquid crystal panel P is carried into the third bonding apparatus 18 by a transport robot (not shown). The liquid crystal panel P is bonded to the third optical member F13 on the display surface side by the third bonding device 18. The liquid crystal panel P on which the third optical member F13 is bonded is carried into the third bonding carry-in / out position 16c of the second rotary index 16 from the third bonding device 18 by a transport robot (not shown).

The 2nd rotary index 16 makes the position (lower end part of FIG. 5) rotated 90 degrees clockwise from the 3rd bonding carrying in / out position 16c the bonding inspection position 16d. Inspection at the bonding inspection position 16d by the inspection device 19 of the workpiece (liquid crystal panel P) on which the film is bonded (whether the position of the optical member F1X is appropriate (whether the positional deviation is within the tolerance range) ) Etc.) is made.
The work determined that the position of the optical member F1X with respect to the liquid crystal panel P is not appropriate is discharged out of the system by a not-shown discharging means.

  The 2nd rotary index 16 makes the position (left end part of Drawing 5) rotated 90 degrees clockwise from pasting inspection position 16d the 2nd rotary termination position 16b. Carrying out by the 4th conveying apparatus 21 is made | formed by this 2nd rotary terminal position 16b.

  The fourth transport device 21 holds the liquid crystal panel P and transports it freely in the vertical direction and the horizontal direction. For example, the fourth transport device 21 transports the liquid crystal panel P held by suction to the second starting position 7a of the second sub-conveyor 7, releases the suction at the second starting position 7a, and moves the liquid crystal panel P to the second sub-conveying position 7a. Delivered to the conveyor 7.

  The fifth transport device 22 holds the liquid crystal panel P and transports it freely in the vertical and horizontal directions. For example, the fifth transport device 22 transports the liquid crystal panel P held by suction to the end point 5b of the main conveyor 5, releases the suction at the end point 5b, and delivers the liquid crystal panel P to the main conveyor 5. With the above, the bonding process by the film bonding system 1 is completed.

Hereinafter, the detail of the 1st bonding apparatus 13 is demonstrated with reference to FIGS. FIG. 6 is a schematic side view of the first bonding apparatus 13. FIG. 7 is a schematic perspective view of the first bonding apparatus 13. FIG. 8 is a schematic plan view of the first bonding apparatus 13. FIG. 9 is a schematic front view of the first bonding apparatus 13. FIG. 10 is a schematic side view of the first bonding apparatus 13 when the liquid crystal panel is supplied. In addition, the 2nd bonding apparatus 15 and the 3rd bonding apparatus 18 abbreviate | omit the detailed description as what has the same structure.
The 1st bonding apparatus 13 bonds the sheet piece (1st optical member F11) of the bonding sheet | seat F5 cut into the predetermined size in the 1st optical member sheet | seat F1 with respect to the upper surface of liquid crystal panel P. FIG.

  As shown in FIG.6 and FIG.7, the 1st bonding apparatus 13 is the sheet | seat conveyance apparatus 31 (supply part), the defect detection apparatus 60, the marking apparatus 63, the mark detection apparatus 64, and the 1st adsorption | suction stage 41. As shown in FIG. And a second suction stage 42, a collection stage 43, a plurality of bonding heads 32 (bonding portions), a moving device 70, a first rotating device 81, and a second rotating device 82.

  The some bonding head 32 which concerns on this embodiment is provided with 32 A of 1st bonding heads, and the 2nd bonding head 32B. Hereinafter, the first bonding head 32 </ b> A and the second bonding head 32 </ b> B may be collectively referred to as the bonding head 32.

  The sheet conveying device 31 unwinds the first optical member sheet F1 from the raw roll R1 together with the separator sheet F3a, cuts the first optical member sheet F1 leaving the separator sheet F3 to obtain a bonding sheet F5, and a bonding sheet. A supply line 31L for supplying F5 is included.

  The sheet conveying device 31 conveys the bonding sheet F5 using the separator sheet F3a as a carrier, holds the raw fabric roll R1 around which the belt-shaped first optical member sheet F1 is wound, and the first optical member sheet F1. The unwinding portion 31a that is fed out along the longitudinal direction, the cutting device 31b that performs a half cut on the first optical member sheet F1 that is unwound from the raw roll R1, and the first optical member sheet F1 that has been subjected to the half cut at an acute angle. A winding edge 31d for holding a separator roll R2 for winding up a separator sheet F3a wound around a knife edge 31c (peeling part) that winds and separates the bonding sheet F5 from the separator sheet F3a; A conveyance path for the first separator sheet F3a is formed between the unwinding portion 31a and the winding portion 31d. A plurality of rollers (for example, six rollers 311, 312, 313, 314, 315, 316 in this embodiment) and at least one of the plurality of rollers (for example, roller 311 in this embodiment). And a lengther 33.

  The first optical member sheet F1 is equivalent to the width of the display area P4 of the liquid crystal panel P (corresponding to the short side length of the display area P4 in this embodiment) in the horizontal direction (sheet width direction) orthogonal to the conveying direction. Have a width of

  The unwinding unit 31a positioned at the starting point of the sheet conveying device 31 and the winding unit 31d positioned at the ending point of the sheet conveying device 31 are driven in synchronization with each other, for example. Thereby, the winding-up part 31d winds up the separator sheet F3a which passed through the knife edge 31c, while the unwinding part 31a delivers the 1st optical member sheet | seat F1 to the conveyance direction. Hereinafter, the upstream side in the transport direction of the first optical member sheet F1 (separator sheet F3a) in the sheet transport apparatus 31 is referred to as the upstream side of the sheet transport, and the downstream side in the transport direction is referred to as the downstream side of the sheet transport.

  The plurality of rollers form a transport path by spanning at least the separator sheet F3a of the first optical member sheet F1. The plurality of rollers is constituted by a roller selected from a roller that changes the traveling direction of the first optical member sheet F1 being conveyed, a roller that can adjust the tension of the first optical member sheet F1 being conveyed, and the like.

  The length measuring device 33 measures the distance (conveyance distance) by which the first optical member sheet F1 is conveyed based on the rotation angle of the roller 311 to which the length measuring device 33 is attached and the length of the outer periphery. The measurement result of the length measuring device 33 is output to the control device 25. Based on the measurement result of the length measuring device 33, the control device 25 determines that each point in the longitudinal direction of the first optical member sheet F1 is on the conveyance path at an arbitrary time while the first optical member sheet F1 is being conveyed. Sheet position information indicating where the sheet exists is generated.

  The defect detection device 60 detects a defect inherent in the first optical member sheet F1 being conveyed. The defect detection device 50 performs inspection processing such as reflection inspection, transmission inspection, oblique transmission inspection, crossed Nicol transmission inspection, and the like on the first optical member sheet F11 being conveyed, so that the first optical member sheet F1 Detect defects.

  The defect detection device 60 includes an illumination unit 61 that can irradiate light to the first optical member sheet F1, and light that has been irradiated from the illumination unit 61 and passed through the first optical member sheet F1 (either or both of reflection and transmission). And a photodetector 62 capable of detecting changes due to the presence or absence of defects in the optical member sheet F1. The disadvantage of the optical member sheet F1 is, for example, a portion where a foreign substance consisting of at least one of solid, liquid and gas exists in the optical member sheet F1, a portion where unevenness and scratches exist on the surface of the optical member sheet F1, A portion or the like that becomes a bright spot due to distortion of the optical member sheet F1, deviation of material, or the like.

  The illumination unit 61 emits light whose light intensity, wavelength, polarization state, and the like are adjusted according to the type of inspection performed by the defect detection device 60. The photodetector 62 is configured by an imaging element such as a CCD, and images the portion of the first optical member sheet F1 that is irradiated with light by the illumination unit 61. The detection result (imaging result) of the photodetector 62 is output to the control device 25.

  The control device 25 analyzes the image captured by the photodetector 62 and determines the presence or absence of a defect. When the control device 25 determines that a defect exists in the first optical member sheet F1, the defect position information indicating the position of the defect on the first optical member sheet F1 with reference to the measurement result of the length measuring device 33. Is generated.

  In addition, the structure of the defect detection apparatus 60 can be suitably changed so that the fault of the 1st optical member sheet | seat F1 can be detected. For example, the defect detection device 60 may include a determination unit that determines the presence or absence of a defect based on the detection result of the photodetector 62, and may be able to output the determination result of the determination unit to the control device 25. The defect detection device 60 may output the determination result of the determination unit to the control device 25, and the control device 25 may not determine whether there is a defect.

  The marking device 63 marks the defective portion of the first optical member sheet F1 based on the determination result of the determination unit. By attaching the mark, the defective portion in the first optical member sheet F1 is identified. For example, the marking device 63 marks the defective portion found in the first optical member sheet F1 from the surface protective film F4a side by inkjet or the like. In addition, it may replace with the marking by the marking apparatus 63 and an operator may mark with a magic etc.

  The marking on the defective portion by the marking device 63 is performed during the conveyance of the first optical member sheet F1. In addition, you may mark the fault location by stopping the 1st optical member sheet | seat F1.

  The mark detection device 64 detects a mark marked at a defective portion of the first optical member sheet F1 being conveyed. The mark detection device 64 detects a mark on the first optical member sheet F1 by executing inspection processing such as transmission inspection on the first optical member sheet F11 being conveyed.

  The mark detection device 64 includes an illumination unit 65 that can irradiate light to the first optical member sheet F1, and an imaging device 66 that can image the mark formed on the first optical member sheet F1.

  For example, the illumination unit 65 includes a fluorescent lamp and a diffusion plate that diffuses light emitted from the fluorescent lamp. The imaging device 66 is configured by an imaging element such as a CCD, and images the portion of the first optical member sheet F1 that is irradiated with light by the illumination unit 65. The detection result (imaging result) of the imaging device 66 is output to the control device 25.

  The control device 25 analyzes the image picked up by the image pickup device 66 and determines the presence or absence of a mark. When the control device 25 determines that there is a mark on the first optical member sheet F1, the position information indicating the position of the mark on the first optical member sheet F1 with reference to the measurement result of the length measuring device 33 Is generated.

  The cutting device 31b cuts a part of the first optical member sheet F1 in the thickness direction over the entire width in the sheet width direction of the first optical member sheet F1 (half cutting is performed).

  The cutting device 31b performs cutting 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 (so that a predetermined thickness remains on the separator sheet F3a). The advancing / retreating position of the blade is adjusted, and half cutting is performed to the vicinity of the interface 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 cut along the entire width in the sheet width direction of the first optical member sheet F1 by cutting the optical member body F1a and the surface protection film F4a in the thickness direction. Is formed. The first optical member sheet F1 is divided into sections having a length corresponding to the long side length of the display region P4 in the longitudinal direction by a cutting line. Each of these sections becomes one sheet piece in the bonding sheet F5. The configuration of the cutting device 31b can be changed as appropriate so that the dimension (depth) of the cut line in the thickness direction of the first optical member sheet F1 and the position of the cut line in the sheet conveyance direction can be controlled. is there.

  With reference to the mark position information, the control device 25 refers to the section corresponding to the unit length in the longitudinal direction of the first optical member F11 from the first tangent line formed by the cutting device 31b (hereinafter referred to as the next sheet piece). It is determined whether or not there is a defect of the first optical member F11 in the section). The control device 25 determines the position of the cut line to be formed next depending on whether or not there is a defect in the section of the next sheet piece, and forms the cut line on the first optical member sheet F1. Cut line position information indicating the position is generated.

  Based on the determination result of the determination unit, the cutting device 31b cuts the first optical member sheet F1 while leaving the separator sheet F3a, and converts the first optical member sheet F1 into a non-defective sheet piece (non-defective optical member (first optical member F11)). Equivalent) or defective sheet pieces including defects (corresponding to defective optical members).

  The knife edge 31c is located below the first optical member sheet F1 conveyed substantially horizontally from the left side to the right side in FIG. 6, and extends at least over the entire width in the sheet width direction of the first optical member sheet F1. The knife edge 31c is wound so as to be in sliding contact with the separator sheet F3a side of the first optical member sheet F1 after the half cut.

  The knife edge 31c wraps the first optical member sheet F1 at an acute angle at its acute-angled tip. The first optical member sheet F1 peels the separator sheet F3a from the bonding sheet F5 when it is folded at an acute angle at the tip of the knife edge 31c. At this time, the adhesion layer F2a (bonding surface with the liquid crystal panel P) of the bonding sheet F5 faces downward. Immediately below the tip of the knife edge 31c is the separator peeling position 31e, and the holding surfaces 32a of the first bonding head 32A and the second bonding head 32B are in contact with the tip of the knife edge 31c from above, so that the bonding is performed. The surface protective film F4a (surface opposite to the bonding surface) of the sheet piece of the bonding sheet F5 is bonded to the holding surfaces 32a of the first bonding head 32A and the second bonding head 32B.

  The 1st adsorption | suction stage 41 has the adsorption | suction surface 41a which adsorb | sucks and hold | maintains liquid crystal panel P by which the sheet piece of the bonding sheet | seat F5 hold | maintained at the holding surface 32a of 32 A of 1st bonding heads is bonded.

  The 2nd adsorption | suction stage 42 has the adsorption | suction surface 42a which adsorb | sucks and hold | maintains liquid crystal panel P by which the sheet piece of the bonding sheet | seat F5 hold | maintained at the holding surface 32a of the 2nd bonding head 32B is bonded.

  As shown in FIG. 10, each of the first suction stage 41 and the second suction stage 42 is movable along a second direction V2 parallel to the sheet conveying direction. For example, each of the first suction stage 41 and the second suction stage 42 moves along the second direction V2 when the liquid crystal panel P is supplied.

  As shown in FIG. 7, the collection stage 43 is disposed at a position where it does not interfere with the first suction stage 41 and the second suction stage 42. The collection stage 43 collects defective product sheet pieces. The collection stage 43 has a support surface 43a that supports the defective sheet piece.

  The defective sheet piece peeled off from the separator sheet F3a by the bonding head 32 is bonded to the support surface 43a of the collection stage 43. For example, a waste material sheet or the like is disposed on the support surface 43a, and a plurality of defective product sheet pieces are stacked on the waste material sheet. After the defective sheet pieces are stacked to some extent, the defective sheet pieces are discarded together. In this case, the defective product sheet piece may be peeled off from the waste material sheet and discarded, or may be discarded together with the waste material sheet.

  In the present embodiment, the suction surface 41a of the first suction stage 41, the suction surface 42a of the second suction stage 42, and the support surface 43a of the recovery stage 43 are each in the same plane.

  The collection stage 43 according to the present embodiment is disposed on the extension line 31La of the supply line 31L. The first suction stage 41 and the second suction stage 42 are disposed at positions facing each other with the collection stage 43 interposed therebetween.

  The arrangement positions of the first suction stage 41, the second suction stage 42, and the recovery stage 43 are not limited to this. If the first suction stage 41, the second suction stage 42, and the collection stage 43 are arranged at positions that do not interfere with each other, the first suction stage 41, the second suction stage 42, and the collection stage 43 may be arranged as necessary. Can be changed as appropriate.

  The plurality of bonding heads 32 hold the sheet pieces of the plurality of bonding sheets F5 sequentially supplied by one supply line 31L by alternately bonding them to the holding surfaces 32a and holding them on the holding surfaces 32a. The sheet pieces of the bonded sheet F5 thus bonded are bonded to separate liquid crystal panels P, respectively.

  The bonding head 32 holds the non-defective sheet piece peeled off from the separator sheet F3a and pastes it on the liquid crystal panel P, and holds the defective product sheet piece peeled off from the separator sheet F3a and pastes it on the collection stage 43. To do.

  The bonding head 32 has an arc-shaped holding surface 32a that is parallel to the sheet width direction and protrudes downward. The holding surface 32a has, for example, a weaker bonding force than the bonding surface (adhesive layer F2c) of the bonding sheet F5, and the surface protective film F4c of the bonding sheet F5 can be repeatedly bonded and peeled off.

  The bonding head 32 is tilted so as to be parallel to the sheet width direction and along the curvature of the holding surface 32a so as to be centered on an axis along the sheet width direction above the knife edge 31. Tilt of the bonding head 32 is appropriately performed when the bonding sheet F5 is bonded and held, and when the bonding sheet F5 bonded and held is bonded to the liquid crystal panel P.

  The bonding head 32 has the holding surface 32a facing downward and the curved one end side of the holding surface 32a on the knife edge 31 with the curved one end side (the right side in FIG. 6) inclined downward. The top end portion of the bonding sheet F5 at the separator peeling position 31e is stuck to the holding surface 32a. Thereafter, the bonding head 32 is tilted while the bonding sheet F5 is fed out (inclined so that the other end of the curved surface of the holding surface 32a (the left side in FIG. 6) is on the lower side), thereby bonding to the holding surface 32a. The entire sheet piece of the sheet F5 is stuck.

  The bonding head 32 can move up and down by a predetermined amount above the separator peeling position 31e and the first bonding position 11c (see FIG. 5), and appropriately moves between the separator peeling position 31e and the first bonding position 11c. Is possible. The bonding head 32 is connected to an arm portion 71b (see FIG. 7) as a driving device that can be driven when moving up and down, moving, and tilting.

  When the bonding head 32 adheres the bonding sheet F5 to the holding surface 32a, for example, after the tip of the first optical member F11 is bonded to the holding surface 32a, the engagement with the arm portion 71b is cut. In this state, the first optical member F11 is passively tilted. When the bonding head 32 tilts until the entire first optical member F11 is bonded to the holding surface 32a, the tilting is locked by, for example, engaging the arm portion 71b in this tilted posture, and the first bonding is performed in this state. It moves above the position 11c.

  When the bonding head 32 is bonded to the liquid crystal panel P, the bonding head 32 is actively tilted by the operation of the arm portion 71b, for example, and the liquid crystal panel P along the curve of the holding surface 32a. The bonding sheet F5 is pressed against the upper surface of the sheet and bonded securely.

  In this embodiment, although both the bonding head 32 and the adsorption | suction stage are provided 2 each with respect to one supply line 31L, it is not restricted to this. For example, both the bonding head 32 and the suction stage may be provided in three or more corresponding to the sheet conveying device 31, or only one suction stage is provided corresponding to the sheet conveying device 31. Also good. That is, at least a plurality of bonding heads 32 may be provided for one supply line 31L. However, from the viewpoint of simplifying the apparatus configuration, it is preferable that both the bonding head 32 and the suction stage are provided in two for each supply line 31L.

  The moving device 70 moves the plurality of bonding heads 32 between the knife edge 31 c and the liquid crystal panel P or between the knife edge 31 c and the collection stage 43. Specifically, in the moving device 70, the first bonding head 32A pastes the sheet piece of the bonding sheet F5 held on the holding surface 32a of the first bonding head 32A to the liquid crystal panel P in the first suction stage 41. When bonding, the second bonding head 32B is moved to the knife edge 31c, and the second bonding head 32B is held by the holding surface 32a of the second bonding head 32B. When the sheet piece is bonded to the liquid crystal panel P in the second suction stage 42, the first bonding head 32A is moved to the knife edge 31c.

  As shown in FIGS. 7 to 9, the moving device 70 includes a first moving device 70 </ b> A and a second moving device 70 </ b> B arranged at positions adjacent to each other.

  The first moving device 70A moves the first bonding head 32A between the knife edge 31c and the liquid crystal panel P held by the first suction stage 41, or between the knife edge 31c and the recovery stage 43. The second moving device 70 </ b> B moves the second bonding head 32 </ b> B between the knife edge 31 c and the liquid crystal panel P held by the second suction stage 42, or between the knife edge 31 c and the collection stage 43. Hereinafter, the first moving device 70A and the second moving device 70B may be collectively referred to as the moving device 70.

  The moving device 70 includes one first moving unit 71, two second moving units 72, and one third moving unit 73.

  The 1st moving part 71 moves the bonding head 32 along the 1st direction V1 parallel to the normal line direction of the adsorption | suction surface 41a. The first moving unit 71 includes a power unit 71a such as an actuator, an arm unit 71b that can be moved along the first direction V1 by the power unit 71a, and a support unit 71c that supports the arm unit 71b.

  32 A of 1st bonding heads are attached to the front-end | tip of the arm part 71b in 70 A of 1st moving apparatuses. The 2nd bonding head 32B is attached to the front-end | tip of the arm part 71b in the 2nd moving apparatus 70B.

  The second moving unit 72 moves the bonding head 32 between the knife edge 31 and the liquid crystal panel P along a second direction V2 parallel to the sheet conveying direction. The second moving part 72 includes a guide rail 72a extending along the second direction V2, and a slider 72b movable along the guide rail 72a.

  The third moving unit 73 moves the bonding head 32 between the knife edge 31c and the liquid crystal panel P or between the knife edge 31c and the collection stage 43 in a third direction parallel to the direction perpendicular to the sheet conveying direction. Move along direction V3. The third moving unit 73 includes a guide rail 73a extending along the third direction V3 and a slider 73b movable along the guide rail 73a.

  The guide rail 73a is attached to the side of the slider 72b opposite to the guide rail 72a. The support portion 71c is attached to the side of the slider 73b opposite to the guide rail 73a.

  In the first moving device 70A, the power unit 71a and the slider 73b are arranged eccentric to each other so that the first bonding head 32A is arranged to be shifted toward the extension line 31La when viewed from the first direction V1. Specifically, the power unit 71a is attached to one end side (the extension line 31La side) of the support part 71c, and the slider 73b is attached to the other end side (the side opposite to the extension line 31La) of the support part 71c. Yes.

  In the second moving device 70B, the power unit 71a and the slider 73b are arranged eccentrically with respect to each other so that the second bonding head 32B is arranged to be shifted to the extension line 31La side when viewed from the first direction V1. Specifically, the power unit 71a is attached to one end side (the extension line 31La side) of the support part 71c, and the slider 73b is attached to the other end side (the side opposite to the extension line 31La) of the support part 71c. Yes.

  With such a configuration, even if the first moving device 70A and the second moving device 70B are spaced apart with the extension line 31La interposed therebetween, each of the first bonding head 32A and the second bonding head 32B is The knife edge 31c and the collection stage 43 can be moved.

  The first rotating device 81 rotates the first suction stage 41 in the horizontal plane based on the imaging result of the second detection camera 35, and causes the liquid crystal panel P held by the first suction stage 41 and the first bonding head 32A to move. The relative bonding position with the held bonding sheet F5 is adjusted. For example, the first rotating device 81 includes a motor having a rotation axis parallel to the normal direction of the suction surface 41a of the first suction stage 41, and a transmission mechanism that transmits the rotational force of the motor to the first suction stage 41. Have. The first suction stage 41 is attached to the transmission mechanism.

  The second rotating device 82 rotates the second suction stage 42 in the horizontal plane based on the imaging result of the second detection camera 35, and causes the liquid crystal panel P and the second bonding head 32 </ b> B held on the second suction stage 42 to move. The relative bonding position with the held bonding sheet F5 is adjusted. For example, the second rotating device 82 includes a motor having a rotation axis parallel to the normal direction of the suction surface 42a of the second suction stage 42, and a transmission mechanism that transmits the rotational force of the motor to the second suction stage 42. Have. The second suction stage 42 is attached to the transmission mechanism.

  The 2nd moving part 72 moves the bonding head 32 to the front-end | tip part of the knife edge 31 which is a peeling position of the separator sheet F3a. The 1st movement part 71 presses the holding surface 32a from the upper part to the front-end | tip part of the knife edge 31 by lowering the bonding head 32 from the upper direction of the separator peeling position 31e, and the bonding sheet | seat F5 in the separator peeling position 31e. The tip is attached to the holding surface 32a.

  As shown in FIG. 6, in the present embodiment, a first detection camera 34 is provided below the front end of the knife edge 31 c to detect the front end of the sheet piece of the bonding sheet F5 at the site on the downstream side of the sheet conveyance. ing. The detection data of the first detection camera 34 is sent to the control device 25. For example, when the first detection camera 34 detects the downstream end of the bonding sheet F5, the control device 25 temporarily stops the sheet conveying device 31, and then lowers the bonding head 32 to the holding surface 32a. The front-end | tip part of the bonding sheet | seat F5 is stuck.

  When the first detection camera 34 detects the downstream end of the bonding sheet F5 and temporarily stops the sheet conveying device 31, the control device 25 performs the cutting of the bonding sheet F5 by the cutting device 31b. That is, the distance along the sheet conveyance path between the detection position by the first detection camera 34 (the optical axis extension position of the first detection camera 34) and the cutting position by the cutting device 31b (the cutting blade advance / retreat position of the cutting device 31b) is This corresponds to the length of the sheet piece of the bonding sheet F5.

  The cutting device 31b is movable along the sheet conveyance path, and this movement changes the distance along the sheet conveyance path between the detection position by the first detection camera 34 and the cutting position by the cutting device 31b. The movement of the cutting device 31b is controlled by the control device 25. For example, after the cutting sheet 31 is cut by the cutting device 31b for one sheet piece of the bonding sheet F5, the cutting end is a predetermined reference. In the case of deviation from the position, this deviation is corrected by the movement of the cutting device 31b. In addition, you may respond | correspond to the cutting of the bonding sheet | seat F5 from which length differs by the movement of the cutting device 31b. Further, it is possible to cope with the cutting of defective sheets having different lengths by moving the cutting device 31b.

  When the bonding sheet F5 moves from the separator peeling position 31e to the first bonding position 11c, for example, both corners of the base end portion of the bonding sheet F5 bonded and held on the holding surface 32a are a pair of first ends. Images are respectively picked up by the two detection cameras 35. Detection data of each second detection camera 35 is sent to the control device 25. The control device 25 is based on the imaging data of each second detection camera 35, for example, the horizontal direction of the bonding sheet F5 with respect to the bonding head 32 (the moving direction of the bonding head 32 and its orthogonal direction and the rotation direction about the vertical axis). Check the position of. When the relative position of the bonding head 32 and the bonding sheet F5 is misaligned, the bonding head 32 performs alignment so that the position of the bonding sheet F5 (first optical member F11) is a predetermined reference position.

  About alignment of liquid crystal panel P and the bonding sheet | seat F5 (1st optical member F11) performed by this 1st bonding apparatus 13, the control apparatus 25 as a 1st alignment apparatus is the 1st thru | or 4th detection camera 34-. Based on the detected data of 38, the first optical member F11 is affixed to the liquid crystal panel P so that the arrangement direction of the pixel rows of the liquid crystal panel P and the polarization direction of the first optical member (polarizing film) F11 coincide with each other. Determine the alignment position.

  Specifically, a pair of third detection cameras 36 for performing horizontal alignment of the liquid crystal panel P on the first bonding position 11 c is provided at the first bonding position 11 c of the first rotary index 11. Similarly, a pair of fourth detection cameras 37 for horizontal alignment on the second bonding position 16c of the liquid crystal panel P are provided at the second bonding position 16c of the second rotary index 16. Each third detection camera 36 images, for example, both corners on the left side in FIG. 5 of the glass substrate (first substrate P1) of the liquid crystal panel P, and each fourth detection camera 37 includes, for example, a glass substrate of the liquid crystal panel P. Each of the left corners in FIG. 5 is imaged.

  The second bonding position 16c of the second rotary index 16 is provided with a pair of fifth detection cameras 38 for performing horizontal alignment on the second bonding position 16c of the liquid crystal panel P. Each fifth detection camera 38 images, for example, both corners on the left side in FIG. 5 on the glass substrate of the liquid crystal panel P. Detection data of each of the detection cameras 34 to 38 is sent to the control device 25. It is also possible to use sensors in place of the detection cameras 34 to 38.

  On each of the rotary indexes 11 and 16, an alignment table is provided on which the liquid crystal panel P is placed and the horizontal alignment is possible. The alignment table is driven and controlled by the control device 25 based on the detection data of the detection cameras 34 to 38. Thereby, alignment of liquid crystal panel P with respect to each rotary index 11, 16 (each bonding position 11c, 16c) is made.

  By bonding the bonding sheet F5 aligned by the bonding head 32 to the liquid crystal panel P, the bonding variation of the optical member F1X is suppressed, and the optical axis direction of the optical member F1X with respect to the liquid crystal panel P is reduced. The accuracy is improved and the clarity and contrast of the optical display device are increased. In addition, the optical member F1X can be accurately provided up to the display area P4, and the frame area G (see FIG. 3) outside the display area P4 can be narrowed to enlarge the display area and downsize the device.

  Moreover, in this embodiment, the 1st bonding apparatus 13 is a pair for aligning the horizontal direction of liquid crystal panel P above each of the 1st adsorption | suction stage 41 and the 2nd adsorption | suction stage 42 which are bonding positions. The third detection camera 36 is provided (see FIGS. 5 and 6). In FIG. 5, for convenience, only one suction stage among the two suction stages of the first suction stage 41 and the second suction stage 42 which are bonding positions is illustrated.

  Also in the 2nd bonding apparatus 15, a pair of 4th detection cameras for aligning the liquid crystal panel P in the horizontal direction above each of the 1st suction stage 41 and the 2nd suction stage 42 which are the bonding positions similarly. 37 is provided (see FIG. 5). Each third detection camera 36 images, for example, both corners on the left side in FIG. 5 of the glass substrate (first substrate P1) of the liquid crystal panel P, and each fourth detection camera 37 includes, for example, a glass substrate of the liquid crystal panel P. Each of the left corners in FIG. 5 is imaged.

  Also in the 3rd bonding apparatus 18, a pair of 5th detection cameras for aligning the liquid crystal panel P in the horizontal direction above each of the 1st suction stage 41 and the 2nd suction stage 42 which are the bonding positions similarly. 38 is provided (see FIG. 5). Each fifth detection camera 38 images, for example, both corners on the left side in FIG. 5 on the glass substrate of the liquid crystal panel P. Detection information of each of the detection cameras 34 to 38 is sent to the control device 25. It is also possible to use sensors in place of the detection cameras 34 to 38.

  Each of the first suction stage 41 and the second suction stage 42 in each bonding apparatus 13, 15, 18 is driven and controlled by the control device 25 based on the detection information of each detection camera 34 to 38. Thereby, alignment of liquid crystal panel P with respect to the bonding head 32 in each bonding position is performed.

  By bonding the bonding sheet F5 from the aligned bonding head 32 to the liquid crystal panel P, the bonding variation of the optical member F1X is suppressed, and the optical axis direction of the optical member F1X with respect to the liquid crystal panel P is reduced. The accuracy is improved and the clarity and contrast of the optical display device are increased.

  The control device 25 of the present embodiment is configured including a computer system. This computer system includes an arithmetic processing unit such as a CPU and a storage unit such as a memory and a hard disk. The control device 25 of the present embodiment includes an interface that can execute communication with an external device of the computer system. An input device capable of inputting an input signal may be connected to the control device 25. The input device includes an input device such as a keyboard and a mouse, or a communication device that can input data from a device external to the computer system. The control device 25 may include a display device such as a liquid crystal display that indicates the operation status of each part of the film bonding system 1, or may be connected to the display device.

  An operating system (OS) that controls the computer system is installed in the storage unit of the control device 25. By making each arithmetic processing unit control each part of the film bonding system 1 to the storage unit of the control device 25, each part of the film bonding system 1 is bonded to the bonding sheet F5 by the first bonding head 32A. The program which performs the switching process with the bonding of the bonding sheet | seat F5 by the 2nd bonding head 32B is recorded. Various types of information including programs recorded in the storage unit can be read by the arithmetic processing unit of the control device 25. The control device 25 may include a logic circuit such as an ASIC that executes various processes required for controlling each part of the film bonding system 1.

  As described above, the film bonding system 1 in the above embodiment unwinds the belt-shaped optical member sheet FX having a width corresponding to the display region P4 of the liquid crystal panel P together with the separator sheet F3a from the raw roll R1. The sheet FX is cut with a length corresponding to the display area P4 leaving the separator sheet F3a to form the optical member F1X, and the supply unit 31 including the supply line 31L for supplying the optical member F1X and one supply line 31L. The plurality of optical members F1X that are sequentially supplied are alternately attached to and held on the holding surfaces 32a, and the optical members F1X that are held on the holding surfaces 32a are attached to separate liquid crystal panels P, respectively. The moving device 7 that moves the combined head 32 and the plurality of bonding heads 32 between the supply unit 31 and the liquid crystal panel P. And, it is intended to include. Furthermore, the supply unit 31 includes a knife edge 31c that peels the optical member F1X from the separator sheet F3a, and the plurality of bonding heads 32 include a first bonding head 32A and a second bonding head 32B, and a moving device. 70, when the first bonding head 32A is bonding the optical member F1X held on the holding surface 32a of the first bonding head 32A to the liquid crystal panel P, the second bonding head 32B is knife-edge. When the second bonding head 32B is bonded to the liquid crystal panel P, the first bonding head is moved to 31c and the second bonding head 32B is bonding the optical member F1X held on the holding surface 32a of the second bonding head 32B. 32A is moved to the knife edge 31c. Moreover, the 1st adsorption | suction stage 41 which has the adsorption surface 41a which adsorb | sucks and hold | maintains liquid crystal panel P by which the optical member F1X hold | maintained on the holding surface 32a of 32 A of 1st bonding heads is bonded, and a 2nd bonding head. A second suction stage 42 having a suction surface 42a that sucks and holds the liquid crystal panel P to which the optical member F1X held on the holding surface 32a of 32B is bonded, and the moving device 70 includes the first bonding. The head 32A is moved between the knife edge 31c and the liquid crystal panel P held by the first suction stage 41, and the second bonding head 32B is held by the knife edge 31c and the second suction stage 42. It moves between P. In addition, it further includes a collection stage 43 that is disposed at a position that does not interfere with the first suction stage 41 and the second suction stage 42 and collects defective sheet pieces including defects, and the moving device 70 holds the defective sheet pieces. The first bonding head 32 </ b> A and the second bonding head 32 </ b> B are moved to the collection stage 43. The collection stage 43 is disposed on the extension line 31La of the supply line 31L, and the first suction stage 41 and the second suction stage 42 are disposed at positions facing each other across the collection stage 43. is there.

  According to this structure, since the supply line 31L of the optical member F1X is integrated into one and a plurality of the bonding heads 32 are provided, even if a long time is required for the bonding process of the optical member F1X, the supply is performed. The supply of the optical member F1X in the line 31L can be suppressed from stagnation. Accordingly, it is possible to suppress a decrease in production efficiency of the optical display device. Further, since only one supply line 31L is required, a large installation place is not required as compared with the case where a plurality of supply lines are provided, and the equipment cost can be suppressed.

  Moreover, when the 1st bonding head 32A is bonding the optical member F1X hold | maintained on the holding surface 32a of the 1st bonding head 32A to the liquid crystal panel P by the moving apparatus 70, the 2nd bonding head. When 32B is moved to the knife edge 31c and the second bonding head 32B is bonding the optical member F1X held on the holding surface 32a of the second bonding head 32B to the liquid crystal panel P, the first Since one bonding head 32A is moved to the knife edge 31c, the bonding time of the optical member F1X is efficiently shared by the movement time of the first bonding head 32A and the movement time of the second bonding head 32B. be able to. Therefore, the bonding process of the optical member F1X can be performed smoothly.

  Moreover, 32 A of 1st bonding heads are moved between the knife edge 31c and liquid crystal panel P hold | maintained at the 1st adsorption | suction stage 41 by the moving apparatus 70, and 32 B of 2nd bonding heads are the knife edge 31c. Since it moves between the liquid crystal panel P hold | maintained at the 2nd adsorption | suction stage 42, the bonding process of the optical member F1X can be performed smoothly.

Moreover, since the 1st bonding head 32A and the 2nd bonding head 32B which hold | maintained the inferior-goods sheet piece are moved to the collection | recovery stage 43 by the moving apparatus 70, discarding and sticking inferior-goods sheet piece to the collection | recovery stage 43. Can do. Therefore, the defective sheet piece can be removed without using a removal film or the like separate from the separator sheet.
Moreover, compared with the structure which collect | recovers the exclusion film different from a separator sheet with a defective product sheet piece, an exclusion film can be omitted and the cost which an exclusion film requires can be omitted. Further, since the defective sheet piece can be collected using the collection stage 43, it is not necessary to provide a separate device for collecting the film for exclusion, and the device configuration can be simplified. Further, the non-defective sheet piece can be bonded to the liquid crystal panel P while removing the defective sheet piece. Therefore, it is possible to effectively collect defective sheet pieces.
Furthermore, since the collection stage 43 is disposed at a position where it does not interfere with the first suction stage 41 and the second suction stage 42, it is possible to prevent foreign matters from adhering to the surface of the liquid crystal panel P.

Moreover, since the collection | recovery stage 43 is arrange | positioned on the extension line 31La of the supply line 31L, the movement of the bonding head 32 by the moving apparatus 70 can be made into linear form. Therefore, compared to the configuration in which the collection stage 43 is disposed at a position shifted from the extension line 31La of the supply line 31L, the moving axis of the bonding head 32 by the moving device 70 can be reduced, and defective sheet pieces can be smoothed out. Can be recovered.
Further, since the first suction stage 41 and the second suction stage 42 are arranged at positions facing each other across the recovery stage 43, the first suction stage 41 and the second suction stage 42 are disposed between the first suction stage 41 and the recovery stage 43. And the movement of the bonding head 32 in each between the collection | recovery stages 43 can be performed smoothly.

Moreover, in the film bonding system 1, the strip | belt-shaped optical member sheet | seat FX of the width | variety corresponding to the display area P4 is cut into predetermined length, it is set as the optical member F1X, and this optical member F1X is the holding surface 32a of the bonding head 32. In addition, the optical member F1X is bonded to the liquid crystal panel P to suppress the dimensional variation and the bonding variation of the optical member F1X, and the frame portion G around the display region P4 is reduced to enlarge the display area and the device. Can be miniaturized.
Moreover, since it is the structure which affixes on the liquid crystal panel P, after transferring the optical member F1X to the bonding head 32, positioning of the bonding head 32 and the liquid crystal panel P can be performed accurately.
Therefore, the bonding accuracy between the optical member F1X and the liquid crystal panel P can be increased.

  Moreover, in the film bonding system 1, continuous bonding of the optical member F1X becomes easy and the production efficiency of the optical display device can be increased. Since the bonding head 32 having the arc-shaped holding surface 32a is used, the optical member F1X can be smoothly held by the tilt of the arc-shaped holding surface 32a, and the arc-shaped holding surface 32a is also tilted. Thus, the optical member F1X can be reliably bonded to the liquid crystal panel P.

  Moreover, in the film bonding system 1, the knife edge 31c peels the optical member F1X from the separator sheet F3a with the bonding surface with the liquid crystal panel P facing downward, and the bonding head 32 is opposite to the bonding surface. The upper surface of is attached to and held on the holding surface 32a and moved between the peeling position and the bonding position with the bonding surface facing downward. Therefore, the optical member sheet FX will be conveyed with the bonding surface on the adhesive layer F2a side facing downward, and the bonding surface of the optical member sheet FX will be prevented from being scratched or adhered with foreign matter, etc. Can be suppressed.

  Moreover, the film bonding system 1 is a rotary which moves the liquid crystal panel P to a carrying-in position (each rotary first starting position 11a, 16a), a bonding position (each suction stage 41), and a carrying-out position (each rotary terminal position 11b, 16b). By providing the indexes 11 and 16, the transport direction of the liquid crystal panel P can be switched efficiently and the length of the rotary indexes 11 and 16 can be suppressed as a part of the line, and the degree of freedom of system installation can be increased. .

(Second embodiment)
Then, the structure of the film bonding system which concerns on 2nd embodiment is demonstrated. FIG. 11 is a schematic configuration diagram of the film bonding system 2 of the present embodiment. In FIG. 11, for convenience of illustration, the film bonding system 2 is described in two upper and lower stages. Hereinafter, the same reference numerals are given to components common to the first embodiment, and detailed description thereof is omitted.

  In 1st embodiment, the case where the width | variety and length of the optical member F1X bonded by the bonding head 32 were equivalent to it in the display area P4 of liquid crystal panel P was mentioned as an example. On the other hand, in this embodiment, after pasting a sheet piece larger than the display region P4 (width and length) to the liquid crystal panel P, a cutting device for cutting off an excess portion of the sheet piece is provided. In this respect, it differs greatly from the first embodiment.

  For example, as a sheet piece having a width and length larger than that of the display area P4, the width of the sheet piece is 2 mm to 5 mm on one side (4 mm to 10 mm on both sides) larger than the width of the display area P4, and the length of the sheet piece is One that is 2 mm to 5 mm on one side (4 mm to 10 mm on both sides) larger than the length of the display region P4 is used.

  In this embodiment, as shown in FIG. 11, the film bonding system 2 has long, strip-like first, second, and third optical member sheets F1, F2, and F3 (optical members) on the front and back surfaces of the liquid crystal panel P. The first, second and third optical members F11, F12, F13 (see FIG. 3, optical member F1X) cut out from the sheet FX) are bonded together.

  In the present embodiment, the first, second, and third optical members F11, F12, and F13 are first, second, and third sheet pieces F1m, F2m, and F3m (hereinafter collectively referred to as sheet pieces FXm). In other cases, the liquid crystal panel P to which the sheet piece FXm is bonded and the excess portion outside the bonding surface of the sheet piece FXm are cut off.

  FIG. 12 is a plan view (top view) of the film bonding system 2, and the film bonding system 2 will be described below with reference to FIGS. In the figure, an arrow F indicates the transport direction of the liquid crystal panel P. Moreover, in FIG. 12, only one adsorption | suction stage is illustrated among the two adsorption | suction stages of the 1st adsorption | suction stage 41 and the 2nd adsorption | suction stage 42 which are bonding positions for convenience. In the following description, as in the first embodiment, the upstream side in the transport direction of the liquid crystal panel P is referred to as the upstream side of the panel transport, and the downstream side in the transport direction of the liquid crystal panel P is referred to as the downstream side of the panel transport.

  The film bonding system 2 sets the predetermined position of the main conveyor 5 as the start point 5a and the end point 5b of the bonding process. The film bonding system 2 includes a first sub conveyor 6 and a second sub conveyor 7, a first conveying device 8, a cleaning device 9, a first rotary index 11, a second conveying device 12, and a first bonding. The apparatus 13 and the 2nd bonding apparatus 15, the film peeling apparatus 14, and the 1st cutting device 51 are provided.

  Furthermore, the film bonding system 2 includes a second rotary index 16 provided on the panel transport downstream side of the first rotary index 11, a third transport device 17, a third bonding device 18, and a second cutting device 52. The second sub-conveyor 7, the fourth transport device 21, and the fifth transport device 22 are provided.

  The film laminating system 2 uses the lines formed by the driven main conveyor 5, the sub conveyors 6 and 7, and the rotary indexes 11 and 16 to transfer the liquid crystal panel P to the liquid crystal panel P in order. Apply. The liquid crystal panel P is conveyed, for example, in the main conveyor 5 with the short side of the display area P4 along the conveying direction, and in each of the sub conveyors 6 and 7 orthogonal to the main conveyor 5, the long side of the display area P4 is conveyed in the conveying direction. In each rotary index 11, 16, the long side of the display area P 4 is conveyed in a direction along the radial direction of each rotary index 11, 16.

  The film bonding system 2 bonds a sheet piece (corresponding to the optical member F1X) of the bonding sheet F5 cut out to a predetermined length from the belt-shaped optical member sheet FX on the front and back surfaces of the liquid crystal panel P.

  The first rotary index 11 is rotationally driven clockwise with the carry-in position from the second transport device 12 (left end portion in plan view in FIG. 12) as the first rotary starting position 11a. The 1st rotary index 11 makes the position (upper end part of FIG. 12) rotated 90 degrees clockwise from the 1st rotary first departure position 11a the 1st bonding carrying in / out position 11c.

  In this 1st bonding carrying in / out position 11c, liquid crystal panel P is carried in into the 1st bonding apparatus 13 with the conveyance robot not shown. In this embodiment, the 1st sheet | seat piece F1m of the backlight side in liquid crystal panel P is bonded by the 1st bonding apparatus 13. FIG. The first sheet piece F1m is a sheet piece of the first optical member sheet F1 having a size larger than the display area P4 of the liquid crystal panel P.

  The 1st optical member bonding body PA1 is formed when the 1st sheet piece F1m is bonded by the 1st bonding apparatus 13 on the surface one side of liquid crystal panel P. As shown in FIG. 1st optical member bonding body PA1 is carried in from the 1st bonding apparatus 13 to the 1st bonding carrying in / out position 11c of the 1st rotary index 11 by the conveyance robot not shown.

  The 1st rotary index 11 makes the film peeling position 11e the position rotated 45 degrees clockwise from the 1st bonding carrying in / out position 11c (upper right end part of FIG. 12). At the film peeling position 11e, the film peeling device 14 peels the surface protection film F4a of the first sheet piece F1m.

  The 1st rotary index 11 makes the position (right end position of FIG. 12) rotated 45 degrees clockwise from the film peeling position 11e the 2nd bonding carrying in / out position 11d.

  At this second bonding carry-in / out position 11d, the liquid crystal panel P is carried into the second bonding apparatus 15 by a transport robot (not shown). In this embodiment, the 2nd bonding apparatus 15 bonds the 2nd sheet piece F2m by the side of the backlight in liquid crystal panel P. As shown in FIG. The second sheet piece F2m is a sheet piece of the second optical member sheet F2 having a size larger than the display area of the liquid crystal panel P.

  The 2nd optical member bonding body PA2 is formed by the 2nd bonding apparatus 15 bonding the 2nd sheet piece F2m to the surface at the side of the 1st sheet piece F1m of 1st optical member bonding body PA1. 2nd optical member bonding body PA2 is carried in from the 2nd bonding apparatus 15 to the 2nd bonding carrying in / out position 11d of the 1st rotary index 11 by the conveyance robot not shown.

  The 1st rotary index 11 makes the position (lower end part of FIG. 12) rotated 90 degrees clockwise from the 2nd bonding position 11d the 1st rotary terminal position (1st cutting position) 11b.

  In the present embodiment, the first rotary terminal position 11b is a first cutting position where the first sheet piece F1m and the second sheet piece F2m are cut by the first cutting device 51.

  Moreover, the film bonding system 2 is provided with the 1st detection apparatus 91 (refer FIG. 16). The 1st detection apparatus 91 is provided in a panel conveyance downstream rather than the 2nd bonding position 11d. The 1st detection apparatus 91 detects the edge of the bonding surface (henceforth a 1st bonding surface) of liquid crystal panel P and the 1st sheet piece F1m.

This will be described with reference to FIGS. 15, 16 and 17. In addition, in FIG.15, FIG16 and FIG.17, illustration of the 2nd sheet piece F2m is abbreviate | omitted for convenience.
For example, as illustrated in FIG. 15, the first detection device 91 includes an edge ED (outside of the bonding surface) of the first bonding surface SA1 in the four inspection areas CA installed on the conveyance path of the upstream conveyor 6. Edge). Each inspection area | region CA is arrange | positioned in the position corresponding to four corner | angular parts of 1st bonding surface SA1 which has a rectangular shape. The edge ED is detected for each liquid crystal panel P conveyed on the line. The edge ED data detected by the first detection device 91 is stored in the storage device 24 (see FIG. 11).

  The arrangement position of the inspection area CA is not limited 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.

FIG. 16 is a schematic diagram of the first detection device 91.
As shown in FIG. 16, the first detection device 91 has an illumination light source 94 that illuminates the edge ED, and the first bonding surface SA1 rather than the edge ED with respect to the normal direction of the first bonding surface SA1. And an image pickup device 93 that is arranged in an inwardly inclined posture and picks up an image of the edge ED from the side on which the first sheet piece F1m of the first optical member bonding body PA1 is bonded.

  The illumination light source 94 and the imaging device 93 are each arrange | positioned at four test | inspection area | region CA (position corresponding to four corner | angular parts of 1st bonding surface SA1) shown in FIG.

  An angle θ (hereinafter referred to as an inclination angle θ of the imaging device 93) formed by the normal line of the first bonding surface SA1 and the normal line of the imaging surface 93a of the imaging device 93 is divided into panels within the imaging field of the imaging device 93. It is preferable to set so that time lag, burrs and the like do not enter. For example, when the end surface of the second substrate P2 is shifted outward from the end surface of the first substrate P1, the inclination angle θ of the imaging device 93 is such that the edge of the second substrate P2 enters the imaging field of the imaging device 93. Set to not.

  The inclination angle θ of the imaging device 93 is set so as to match the distance H between the first bonding surface SA1 and the center of the imaging surface 93a of the imaging device 93 (hereinafter referred to as the height H of the imaging device 93). It is preferred that For example, when the height H of the imaging device 93 is 50 mm or more and 100 mm or less, the inclination angle θ of the imaging device 93 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 93 and the inclination angle θ of the imaging device 93 can be obtained based on the deviation amount. In the present embodiment, the height H of the imaging device 93 is set to 78 mm, and the inclination angle θ of the imaging device 93 is set to 10 °.

  The illumination light source 94 and the imaging device 93 are fixedly arranged in each inspection area CA.

  In addition, the illumination light source 94 and the imaging device 93 may be arrange | positioned so that a movement is possible along the edge ED of 1st bonding surface SA1. In this case, it is only necessary to provide one illumination light source 94 and one imaging device 93 each. Thereby, the illumination light source 94 and the imaging device 93 can be moved to a position where the edge ED of the first bonding surface SA1 can be easily imaged.

  The illumination light source 94 is arrange | positioned on the opposite side to the side by which the 1st sheet piece F1m of 1st optical member bonding body PA1 was bonded. The illumination light source 94 is arrange | positioned with the attitude | position which inclined outside the 1st bonding surface SA1 rather than the edge ED with respect to the normal line direction of 1st bonding surface SA1. In the present embodiment, the optical axis of the illumination light source 94 and the normal line of the imaging surface 93a of the imaging device 93 are parallel.

  In addition, the illumination light source may be arrange | positioned at the side by which the 1st sheet piece F1m of 1st optical member bonding body PA1 was bonded.

  Further, the optical axis of the illumination light source 94 and the normal line of the imaging surface 93a of the imaging device 93 may slightly cross each other.

  Moreover, as shown in FIG. 17, each of the imaging device 93 and the illumination light source 94 may be arrange | positioned in the position which overlaps with edge ED along the normal line direction of 1st bonding surface SA1. A distance H1 between the first bonding surface SA1 and the center of the imaging surface 93a of the imaging device 93 (hereinafter referred to as a height H1 of the imaging device 93) detects the 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 93 is preferably set in a range of 50 mm or more and 150 mm or less.

  The cutting position of the first sheet piece F1m is adjusted based on the detection result of the edge ED of the first bonding surface SA1. The control device 25 (see FIG. 11) acquires the data of the edge ED of the first bonding surface SA1 stored in the storage device 24 (see FIG. 11), and the first optical member F11 is outside the liquid crystal panel P (see FIG. 11). The cut position of the 1st sheet piece F1m is determined so that it may become the magnitude | size which does not protrude on the outer side of 1st bonding surface SA1. The first cutting device 51 cuts the first sheet piece F1m at the cutting position determined by the control device 25.

  Returning to FIGS. 11 and 12, the first cutting device 51 is provided on the downstream side of the panel conveyance with respect to the first detection device 91. The 1st cutting device 51 puts together the excess part arrange | positioned on the outer side of the part corresponding to 1st bonding surface SA1 from each of the 1st sheet piece F1m bonded to liquid crystal panel P, and the 2nd sheet piece F2m. The first optical member F11 made of the first optical member sheet F1 and the second optical member F12 made of the second optical member sheet F2 are formed as optical members having a size corresponding to the first bonding surface SA1.

  Here, the “size corresponding to the first bonding surface SA1” is not less than the size of the display area P4 of the liquid crystal panel P and not more than the size of the outer shape (contour shape in plan view) of the liquid crystal panel P. It points to.

  By laminating the first sheet piece F1m and the second sheet piece F2m to the liquid crystal panel P and then cutting them together, there is no positional deviation between the first optical member F11 and the second optical member F12, and the first bonding surface. The first optical member F11 and the second optical member F12 that match the shape of the outer peripheral edge of SA1 are obtained. Moreover, the cutting process of the 1st sheet piece F1m and the 2nd sheet piece F2m is also simplified.

  The first cutting device 51 cuts off the excess portions of the first sheet piece F1m and the second sheet piece F2m from the second optical member bonding body PA2, so that the first optical member F11 and the first optical member F11 on the front and back surfaces of the liquid crystal panel P are separated. 3rd optical member bonding body PA3 formed by bonding 2 optical member F12 is formed. At this time, the 3rd optical member bonding body PA3 and the part (each optical member F11, F12) corresponding to 1st bonding surface SA1 are cut off, and the surplus part of each sheet piece F1m, F2m which remains in frame shape. To be separated.

Here, the “part corresponding to the first bonding surface SA1” is a region that is not less than the size of the display region P4 and not more than the size of the outer shape of the liquid crystal panel P, and a functional part such as an electrical component mounting portion. Indicates the area that was avoided. In the present embodiment, in the three sides excluding the functional portion in the liquid crystal panel P having a rectangular shape in plan view, the surplus portion is laser-cut along the outer peripheral edge of the liquid crystal panel P, and in one side corresponding to the functional portion, the liquid crystal The surplus portion is laser-cut at a position that appropriately enters the display region P4 side from the outer peripheral edge of the panel P. For example, when the portion corresponding to the first bonding surface SA1 is the bonding surface of the TFT substrate, a predetermined amount from the outer peripheral edge of the liquid crystal panel P to the display region P4 side so as to exclude the functional portion on one side corresponding to the functional portion. Cut at the shifted position.
In addition, it is not restricted to bonding a sheet piece to the area | region (for example, whole liquid crystal panel P) containing the said functional part in liquid crystal panel P. FIG. For example, a sheet piece is pasted in a region avoiding the functional portion in the liquid crystal panel P in advance, and then along the outer peripheral edge of the liquid crystal panel P on three sides excluding the functional portion in the liquid crystal panel P having a rectangular shape in plan view. The excess portion may be laser cut.

  The surplus part cut off from the first sheet piece FX1 and the second sheet piece F2m is peeled off and collected from the liquid crystal panel P by a peeling device (not shown). 3rd optical member bonding body PA3 is carried out by the 3rd conveying apparatus 17 in the 1st rotary terminal position 11b.

  The 3rd conveying apparatus 17 hold | maintains liquid crystal panel P (3rd optical member bonding body PA3), and conveys it freely in a vertical direction and a horizontal direction. The third transport device 17 transports, for example, the liquid crystal panel P held by suction to the second rotary starting position 16a of the second rotary index 16, and reverses the front and back of the liquid crystal panel P during this transport, so that the second rotary starting position The suction is released at 16 a and the liquid crystal panel P is transferred to the second rotary index 16.

  The second rotary index 16 is driven to rotate clockwise with the carry-in position from the third transport device 17 (the upper end portion in plan view in FIG. 12) as the second rotary initial position 16a. The 2nd rotary index 16 makes the position (right end part of FIG. 12) rotated 90 degrees clockwise from the 2nd rotary starting position 16a the 3rd bonding carrying in / out position 16c.

  At the third bonding carry-in / out position 16c, the liquid crystal panel P is carried into the third bonding apparatus 18 by a transport robot (not shown). In this embodiment, the 3rd bonding apparatus 18 bonds the 3rd sheet piece F3m by the side of a display surface. The third sheet piece F3m is a sheet piece of the third optical member sheet F3 having a size larger than the display area of the liquid crystal panel P.

  The third bonding device 18 changes the surface of the liquid crystal panel P to the other surface (the surface opposite to the surface on which the first optical member F11 and the second optical member F12 of the third optical member bonding body PA3 are bonded). The fourth optical member bonding body PA4 is formed by bonding the three sheet pieces F3m. 4th optical member bonding body PA4 is carried in from the 3rd bonding apparatus 18 to the 3rd bonding carrying in / out position 16c of the 2nd rotary index 16 by the conveyance robot not shown.

  In this embodiment, the 2nd rotary index 16 makes the position (lower end part of FIG. 12) rotated 90 degrees clockwise from the 3rd bonding position 16c the 2nd cutting position 16d. At the second cutting position 16d, the third sheet piece F3m is cut by the second cutting device 52.

  Moreover, the film bonding system 2 is provided with the 2nd detection apparatus 92 (refer FIG. 16). The 2nd detection apparatus 92 is provided in the panel conveyance downstream rather than the 3rd bonding position 16c. The 2nd detection apparatus 92 detects the edge of the bonding surface (henceforth a 2nd bonding surface) of liquid crystal panel P and the 3rd sheet piece F3m. The edge data detected by the second detection device 92 is stored in the storage device 24 (see FIG. 11).

  The cut position of the third sheet piece F3m is adjusted based on the detection result of the edge of the second bonding surface. The control device 25 (see FIG. 11) acquires the edge data of the second bonding surface stored in the storage device 24 (see FIG. 11), and the third optical member F13 is outside the liquid crystal panel P (second The cut position of the 3rd sheet piece F3m is determined so that it may become the magnitude | size which does not protrude to the outer side of the bonding surface. The second cutting device 52 cuts the third sheet piece F3m at the cutting position determined by the control device 25.

  The second cutting device 52 is provided on the downstream side of the panel conveyance with respect to the second detection device 92. The 2nd cutting device 52 cut | disconnects the excess part arrange | positioned outside the part corresponding to a 2nd bonding surface from the 3rd sheet piece F3m bonded by liquid crystal panel P, and the magnitude | size corresponding to a 2nd bonding surface. The optical member (third optical member F13) is formed.

  Here, the “size corresponding to the second bonding surface” is not less than the size of the display region P4 of the liquid crystal panel P and not more than the size of the outer shape (contour shape in plan view) of the liquid crystal panel P. Point to.

  The third optical member F13 is bonded to the other side of the front and back surfaces of the liquid crystal panel P by separating the excess portion of the third sheet piece F3m from the fourth optical member bonding body PA4 by the second cutting device 52, and the liquid crystal The 5th optical member bonding body PA5 formed by bonding the 1st optical member F11 and the 2nd optical member F12 to the surface one side of the panel P is formed. At this time, the 5th optical member bonding body PA5 and the excess part of the 3rd sheet piece F3m which a part (3rd optical member F13) corresponding to a 2nd bonding surface is cut off, and remain in frame shape are isolate | separated. The surplus part cut off from the third sheet piece F3m is peeled off and collected from the liquid crystal panel P by a peeling device (not shown).

  Here, the “part corresponding to the second bonding surface” is an area that is not less than the size of the display area P4 and not more than the size of the outer shape of the liquid crystal panel P, and avoids a functional part such as an electrical component mounting portion. Indicates the area. In the present embodiment, the surplus portions are laser-cut along the outer peripheral edge of the liquid crystal panel P on the four sides of the liquid crystal panel P having a rectangular shape in plan view. For example, when the portion corresponding to the second bonding surface is the bonding surface of the CF substrate, there is no portion corresponding to the functional portion, so that the four sides of the liquid crystal panel P are cut along the outer peripheral edge of the liquid crystal panel P. .

  In this embodiment, the 1st cutting device 51 is the 1st along the outer periphery of the bonding surface (1st bonding surface SA1) of liquid crystal panel P and the 1st sheet piece F1m which the 1st detection apparatus 91 detected. Each of the one sheet piece F1m and the second sheet piece F2m is cut. The 2nd cutting device 52 cut | disconnects the 3rd sheet piece F3m along the outer periphery of the bonding surface (2nd bonding surface) of liquid crystal panel P and the 3rd sheet piece F3m which the 2nd detection apparatus 92 detected. To do.

Here, the first cutting device 51 and the second cutting device 52 is, for example, CO ₂ laser cutter. In addition, the structure of the 1st and 2nd cutting devices 51 and 52 is not limited to this, For example, it is also possible to use other cutting means, such as a cutting blade.

The 1st cutting device 51 and the 2nd cutting device 52 cut | disconnect endlessly the sheet piece FXm along the outer periphery of the bonding surface of liquid crystal panel P and the sheet piece FXm which the detection apparatuses 91 and 92 detected.
The first cutting device 51 and the second cutting device 52 are connected to the same laser output device 53. The first cutting device 51, the second cutting device 52, and the laser output device 53 cut off the surplus portion arranged outside the portion corresponding to the bonding surface from the sheet piece FXm, and have an optical size corresponding to the display region P4. Cutting means for forming the member sheet FX is configured. Since the laser output required for cutting each of the sheet pieces F1m, F2m, and F3m is not so large, the high-power laser light output from the laser output device 53 is branched into two, and the first cutting device 51 and the second cutting device. You may supply to the apparatus 52. FIG.

  In this embodiment, the 2nd rotary index 16 makes the position (left end part of FIG. 12) rotated 90 degrees clockwise from the 2nd cutting position 16d the 2nd rotary terminal position 16b. The fifth optical member bonding body PA5 is carried out by the fourth transport device 21 at the second rotary terminal position 16b.

  The 4th conveying apparatus 21 hold | maintains liquid crystal panel P (5th optical member bonding body PA5), and conveys it freely in a vertical direction and a horizontal direction. For example, the fourth transport device 21 transports the liquid crystal panel P held by suction to the second starting position 7a of the second sub-conveyor 7, releases the suction at the second starting position 7a, and moves the liquid crystal panel P to the second sub-conveying position 7a. Delivered to the conveyor 7.

  The fifth transport device 22 holds the liquid crystal panel P (fifth optical member bonding body PA5) and transports it freely in the vertical direction and the horizontal direction. For example, the fifth transport device 22 transports the liquid crystal panel P held by suction to the end point 5b of the main conveyor 5, releases the suction at the end point 5b, and delivers the liquid crystal panel P to the main conveyor 5.

  An unillustrated bonding inspection position is installed on the transport path of the liquid crystal panel P (fifth optical member bonding body PA5) after the second rotary terminal position 16b, and film bonding is performed at this bonding inspection position. An inspection (not shown) of the workpiece (liquid crystal panel P) subjected to the inspection (inspection of whether or not the position of the optical member F1X is appropriate (whether the positional deviation is within the tolerance range) or the like) is performed. The work determined that the position of the optical member F1X with respect to the liquid crystal panel P is not appropriate is discharged out of the system by a not-shown discharging means.

  With the above, the bonding process by the film bonding system 2 is completed.

  Hereinafter, the bonding process of the bonding sheet F5 to the liquid crystal panel P by the first bonding apparatus 13 will be described as an example. In addition, the description about the bonding process by the 2nd and 3rd bonding apparatuses 15 and 18 which have the same structure as the 1st bonding apparatus 13 is abbreviate | omitted.

  In this embodiment, the 1st bonding apparatus 13 cuts out the sheet piece (1st sheet piece F1m) of the bonding sheet | seat F5 larger than the display area P4 of liquid crystal panel P from the 1st optical member sheet | seat F1, and this bonding. While holding the sheet piece (first sheet piece F1m) of the sheet F5 on the holding surface 32a of the bonding head 32, the sheet piece (first sheet piece F1m) of the bonding sheet F5 is bonded to the liquid crystal panel P by pressing. To do.

  Each of the first suction stage 41 and the second suction stage 42 is driven and controlled by the control device 25 based on detection information of the detection cameras 34 to 38. Thereby, alignment of liquid crystal panel P with respect to the bonding head 32 in each bonding position is performed.

  By bonding the bonding sheet F5 (sheet piece FXm) from the alignment bonding head 32 to the liquid crystal panel P, the bonding variation of the optical member F1X is suppressed, and the optical member F1X for the liquid crystal panel P is suppressed. The accuracy in the optical axis direction of the optical display device is improved, and the clarity and contrast of the optical display device are increased.

  Here, the polarizer film constituting the optical member sheet FX is formed by, for example, uniaxially stretching a PVA film dyed with a dichroic dye, but the PVA film has uneven thickness or dichroism when stretched. There may be a variation in the direction of the academic axis in the plane of the optical member sheet FX due to uneven coloring of the pigment.

  Therefore, in the present embodiment, the control device 25 uses the liquid crystal panel for the optical member sheet FX based on the inspection data of the in-plane distribution of the optical axis in each part of the optical member sheet FX stored in advance in the storage device 24 (see FIG. 11). P bonding position (relative bonding position) is determined. And each bonding apparatus 13,15,18 aligns liquid crystal panel P with respect to the sheet piece FXm cut out from the optical member sheet | seat FX according to this bonding position, and bonds liquid crystal panel P to the sheet piece FXm. To do.

  The determination method of the bonding position (relative bonding position) of the sheet piece FXm with respect to liquid crystal panel P is as follows, for example.

  First, as shown in FIG. 13A, a plurality of inspection points CP are set in the width direction of the optical member sheet FX, and the direction of the optical axis of the optical member sheet FX is detected at each inspection point CP. The timing for detecting the optical axis may be at the time of manufacturing the original fabric roll R1, or may be until the optical member sheet FX is unwound from the original fabric roll R1 and half cut. Data in the optical axis direction of the optical member sheet FX is stored in the storage device 24 (see FIG. 11) in association with the position of the optical member sheet FX (position in the longitudinal direction and position in the width direction of the optical member sheet FX). .

  The control device 25 acquires the optical axis data (inspection data of the in-plane distribution of the optical axis) of each inspection point CP from the storage device 24 (see FIG. 11), and the optical member sheet FX at the portion where the sheet piece FXm is cut out. The direction of the average optical axis of the (region partitioned by the cut line CL) is detected.

  For example, as shown in FIG. 13B, an angle (deviation angle) formed between the direction of the optical axis and the edge line EL of the optical member sheet FX is detected for each inspection point CP, and the largest of the deviation angles (maximum deviation). Angle) is θmax and the smallest angle (minimum deviation angle) is θmin, and an average value θmid (= (θmax + θmin) / 2) of the maximum deviation angle θmax and the minimum deviation angle θmin is detected as an average deviation angle. . Then, the direction that forms the average deviation angle θmid with respect to the edge line EL of the optical member sheet FX is detected as the average direction of the optical axis of the optical member sheet FX. The deviation angle is calculated, for example, with the counterclockwise direction being positive with respect to the edge line EL of the optical member sheet FX and the clockwise direction being negative.

  Then, the direction of the average optical axis of the optical member sheet FX detected by the above method makes a desired angle with respect to the long side or the short side of the display region P4 of the liquid crystal panel P. The bonding position (relative bonding position) of the sheet piece FXm is determined. For example, when the direction of the optical axis of the optical member F1X is set to be 90 ° with respect to the long side or the short side of the display region P4 according to the design specifications, the average optical axis of the optical member sheet FX is set. The sheet piece FXm is bonded to the liquid crystal panel P so that the direction is 90 ° with respect to the long side or the short side of the display region P4.

  The cutting devices 51 and 52 described above cut the sheet piece FXm along the outer peripheral edge of the bonding surface between the liquid crystal panel P and the sheet piece FXm detected by the detection devices 91 and 92. Outside the display area P4, 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 of the liquid crystal panel P is provided. The sheet piece FXm is cut by the cutting devices 51 and 52.

  In addition, the detection method of the direction of the average optical axis in the surface of the optical member sheet | seat FX is not limited to the said method. For example, one or a plurality of inspection points CP is selected from a plurality of inspection points CP (see FIG. 13A) set in the width direction of the optical member sheet FX, and the direction of the optical axis is selected for each selected inspection point CP. And the angle (deviation angle) formed by the edge line EL of the optical member sheet FX is detected. Then, the average value of the deviation angles in the optical axis direction of the selected one or more inspection points CP is detected as the average deviation angle, and the direction forming the average deviation angle with respect to the edge line EL of the optical member sheet FX is optically detected. You may detect as the direction of the average optical axis of member sheet FX.

  As described above, the film bonding system 2 in the present embodiment is a strip-shaped optical member sheet FX having a width wider than the length of either one of the long side and the short side of the display region P4 of the liquid crystal panel P. Is unwound from the raw roll R1 together with the separator sheet F3a, and the optical member sheet FX is cut to a length longer than the length of either one of the long side and the short side of the display region P4, leaving the separator sheet F3a. The sheet piece FXm is formed, and the supply unit 31 including the supply line 31L for supplying the sheet piece FXm and the plurality of sheet pieces FXm sequentially supplied by one supply line 31L are alternately attached to the holding surfaces 32a. And a plurality of bonding heads 32 for bonding the sheet pieces FXm held on the holding surfaces 32a to the respective liquid crystal panels P. The moving device 70 for moving the plurality of bonding heads 32 between the supply unit 31 and the liquid crystal panel P, and the sheet piece FXm bonded to the liquid crystal panel P are arranged outside the portion corresponding to the bonding surface. And cutting devices 51 and 52 that form the optical member F1X having a size corresponding to the bonding surface. Furthermore, it includes detection devices 91 and 92 that detect the outer peripheral edge of the bonding surface of the liquid crystal panel P and the sheet piece FXm on which the sheet piece FXm is bonded, and the cutting devices 51 and 52 are detected by the detection devices 91 and 92. The sheet piece FXm is cut along the outer peripheral edge of the bonding surface between the liquid crystal panel P and the sheet piece FXm. Moreover, the supply part 31 contains the knife edge 31c which peels the sheet piece FXm from the separator sheet F3a, and the some bonding head 32 contains 32 A of 1st bonding heads, and the 2nd bonding head 32B, and is a moving apparatus. 70, when the first bonding head 32A is bonding the sheet piece FXm held on the holding surface 32a of the first bonding head 32A to the liquid crystal panel P, the second bonding head 32B is knife-edge. 1st bonding head, when it moves to 31c and the 2nd bonding head 32B is bonding the sheet piece FXm hold | maintained at the holding surface 32a of the 2nd bonding head 32B to the liquid crystal panel P. 32A is moved to the knife edge 31c. Moreover, the 1st adsorption | suction stage 41 which has the adsorption | suction surface 41a which adsorb | sucks and hold | maintains liquid crystal panel P by which the sheet piece FXm hold | maintained on the holding surface 32a of 32 A of 1st bonding heads is bonded, and a 2nd bonding head. A second suction stage 42 having a suction surface 42a that sucks and holds the liquid crystal panel P to which the sheet piece FXm held on the holding surface 32a of 32B is bonded, and the moving device 70 includes the first bonding. The head 32A is moved between the knife edge 31c and the liquid crystal panel P held by the first suction stage 41, and the second bonding head 32B is held by the knife edge 31c and the second suction stage 42. It moves between P. In addition, it further includes a collection stage 43 that is disposed at a position that does not interfere with the first suction stage 41 and the second suction stage 42 and collects defective sheet pieces including defects, and the moving device 70 holds the defective sheet pieces. The first bonding head 32 </ b> A and the second bonding head 32 </ b> B are moved to the collection stage 43. The collection stage 43 is disposed on the extension line 31La of the supply line 31L, and the first suction stage 41 and the second suction stage 42 are disposed at positions facing each other across the collection stage 43. is there.

  According to this structure, since the supply line 31L of the sheet piece FXm is integrated into one and a plurality of the bonding heads 32 are provided, even if a long time is required for the bonding process of the sheet piece FXm, the supply is performed. It can suppress that supply of the sheet piece FXm in the line 31L stagnates. Accordingly, it is possible to suppress a decrease in production efficiency of the optical display device. Further, since only one supply line 31L is required, a large installation place is not required as compared with the case where a plurality of supply lines are provided, and the equipment cost can be suppressed.

  Moreover, when the 1st bonding head 32A is bonding the sheet piece FXm hold | maintained on the holding surface 32a of the 1st bonding head 32A to the liquid crystal panel P by the moving apparatus 70, it is the 2nd bonding head. When 32B is moved to the knife edge 31c and the second bonding head 32B is bonding the sheet piece FXm held on the holding surface 32a of the second bonding head 32B to the liquid crystal panel P, the first Since one bonding head 32A is moved to the knife edge 31c, the bonding time of the sheet piece FXm is efficiently shared by the movement time of the first bonding head 32A and the movement time of the second bonding head 32B. be able to. Therefore, the bonding process of the sheet piece FXm can be performed smoothly.

  Moreover, 32 A of 1st bonding heads are moved between the knife edge 31c and liquid crystal panel P hold | maintained at the 1st adsorption | suction stage 41 by the moving apparatus 70, and 32 B of 2nd bonding heads are the knife edge 31c. Since it moves between the liquid crystal panel P hold | maintained at the 2nd adsorption | suction stage 42, the bonding process of the sheet piece FXm can be performed smoothly.

Moreover, since the 1st bonding head 32A and the 2nd bonding head 32B which hold | maintained the inferior-goods sheet piece are moved to the collection | recovery stage 43 by the moving apparatus 70, discarding and sticking inferior-goods sheet piece to the collection | recovery stage 43. Can do. Therefore, the defective sheet piece can be removed without using a removal film or the like separate from the separator sheet.
Moreover, compared with the structure which collects the exclusion film different from a separator with a defective product sheet piece, the exclusion film can be omitted, and the cost required for the exclusion film can be omitted. Further, since the defective sheet piece can be collected using the collection stage 43, it is not necessary to provide a separate device for collecting the film for exclusion, and the device configuration can be simplified. Further, the non-defective sheet piece can be bonded to the liquid crystal panel P while removing the defective sheet piece. Therefore, it is possible to effectively collect defective sheet pieces. Furthermore, since the collection stage 43 is disposed at a position where it does not interfere with the first suction stage 41 and the second suction stage 42, it is possible to prevent foreign matters from adhering to the surface of the liquid crystal panel P.

Moreover, since the collection | recovery stage 43 is arrange | positioned on the extension line 31La of the supply line 31L, the movement of the bonding head 32 by the moving apparatus 70 can be made into linear form. Therefore, compared to the configuration in which the collection stage 43 is disposed at a position shifted from the extension line 31La of the supply line 31L, the moving axis of the bonding head 32 by the moving device 70 can be reduced, and defective sheet pieces can be smoothed out. Can be recovered.
Further, since the first suction stage 41 and the second suction stage 42 are arranged at positions facing each other across the recovery stage 43, the first suction stage 41 and the second suction stage 42 are disposed between the first suction stage 41 and the recovery stage 43. And the movement of the bonding head 32 in each between the collection | recovery stages 43 can be performed smoothly.

  Further, in the film bonding system 2, the optical member F1X can be accurately provided up to the display area P4, and the frame area G (see FIG. 3) outside the display area P4 is narrowed to expand the display area and equipment. Can be reduced in size.

  Moreover, in the film bonding system 2, the 1st cutting device 51 and the 2nd cutting device 52 are laser cutters, the 1st cutting device 51 and the 2nd cutting device 52 are connected to the same laser output device 53, The laser output from the laser output device 53 may be branched and supplied to the first cutting device 51 and the second cutting device 52. In this case, as compared with the case where separate laser output devices are connected to the first cutting device 51 and the second cutting device 52, the production system of the optical display device can be downsized.

  The size of the surplus portion of the sheet piece FXm (the size of the portion that protrudes outside the liquid crystal panel P) is appropriately set according to the size of the liquid crystal panel P. For example, when the sheet piece FXm is applied to a medium-to-small size liquid crystal panel P of 5 to 10 inches, the distance between one side of the sheet piece FXm and one side of the liquid crystal panel P is 2 mm on each side of the sheet piece FXm. Set to a length in the range of ~ 5 mm.

  In addition, in the film bonding system 2 of this embodiment, the outer periphery of the bonding surface is detected for every several liquid crystal panel P using a detection apparatus, and for each liquid crystal panel P based on the detected outer periphery. You may set the cutting position of the bonded sheet piece. Thereby, since the optical member of a desired size can be cut off regardless of the individual difference of the size of the liquid crystal panel P or the sheet piece, the quality variation due to the individual difference of the size of the liquid crystal panel P or the sheet piece is eliminated, The frame portion around the display area can be reduced to enlarge the display area and downsize the device.

(Third embodiment)
Drawing 14A and Drawing 14B are mimetic diagrams of a pasting device applied to film pasting systems 1 and 2 of the above-mentioned embodiment.
14A is a diagram illustrating a state where the sheet piece FXm is held by the bonding head 60, and FIG. 14B is a diagram illustrating a state where the sheet piece FXm is bonded to the liquid crystal panel P.

  In this embodiment, the difference from the first embodiment is that the bonding apparatus of the first embodiment uses a bonding head 32 having an arc-shaped holding surface 32a, whereas the bonding apparatus of the present embodiment is a flat surface. It is the point which uses the bonding head 60 which has the holding surface 60a of a shape. Therefore, it demonstrates centering around the structure of the bonding head 60 here, about the component which is common in 1st embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The bonding apparatus of the present embodiment tilts the bonding head 60, the bonding roller 62, the guide bar 61 that supports the bonding head 60 and the bonding roller 62, and the guide bar 61 with respect to the liquid crystal panel P. And a driving device 63 that horizontally moves in the state. Although not shown, the unwinding unit, cutting device, and knife edge (peeling unit) similar to those shown in FIG. 6 are provided in the bonding apparatus of this embodiment.

  The bonding head 60 has a flat holding surface 60a that holds the sheet piece FXm peeled from the separator sheet. The holding surface 60a is inclined with respect to the liquid crystal panel P when the guide bar 61 is inclined. The sheet piece FXm is positioned such that one end thereof protrudes outside the holding surface 60a and is adsorbed to the holding surface 60a. The adsorbing force of the sheet piece FXm is weak, and the sheet piece FXm can be moved in the horizontal direction while sliding on the holding surface 60a while being held by the holding surface 60a.

  The laminating roller 62 is disposed on the side of the laminating head 60 and presses and sticks the sheet piece FXm protruding from the holding surface 60a of the laminating head 60 to the liquid crystal panel P. When the guide bar 61 is moved in the horizontal direction by the driving device 63 in this state, the bonding head 60 and the bonding roller 62 are moved to the sheet piece FXm in a state where the one end of the sheet piece FXm is bonded to the liquid crystal panel P. It moves horizontally from the one end side toward the other end side. Thereby, the sheet piece FXm is gradually bonded to the liquid crystal panel P from the one end side by the bonding roller 62.

  The bonding head 60 aligns the sheet pieces FXm held on the holding surface 60a in the horizontal direction in the head moving direction, in the orthogonal direction, and in the rotating direction. As in the first embodiment, the bonding position (relative bonding position) between the sheet piece FXm and the liquid crystal panel P is based on the inspection data in the optical axis direction of the optical member sheet FX (see FIG. 1). Will be determined. The bonding head 60 bonds the sheet piece FXm held on the holding surface 60a to the liquid crystal panel P based on the relative bonding position determined by the control device 25.

  Therefore, also in the present embodiment, it is possible to provide an optical display device production system that can reduce the frame portion around the display area to enlarge the display area and downsize the device.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention, including the component configuration, structure, shape, size, number, arrangement, and the like.

DESCRIPTION OF SYMBOLS 1,2 ... Film bonding system (production system of an optical display device), 31 ... Sheet conveying apparatus (supply part), 31c ... Knife edge (peeling part), 31L ... Supply line, 31La ... Extension line, 32 ... Bonding Head (bonding part), 32a ... holding surface, 32A ... first bonding head (first bonding part), 32B ... second bonding head (second bonding part), 41 ... first suction stage, 42 ... second suction stage, 43 ... collection stage, 51 ... first cutting device (cutting device), 52 ... second cutting device (cutting device), 70 ... moving device, 91 ... first detecting device (detecting device), 92 ... second detection device (detection device), P ... liquid crystal panel (optical display component), P4 ... display region, F1 ... first optical member sheet (optical member sheet), F2 ... second optical member sheet (optical member sheet) F3 ... Third optical member sheet (optical part) Sheet), FX ... optical member sheet, FXm ... sheet piece, F3a ... separator sheet, F11 ... first optical member (optical member), F12 ... second optical member (optical member), F13 ... third optical member (optical member) ), F1X ... optical member, R1 ... original fabric roll, R3 ... original fabric roll, SA1 ... first bonding surface (bonding surface), ED ... edge of first bonding surface (outer peripheral edge of bonding surface).

In order to achieve the above object, the present invention employs the following means.
(1) The optical display device production system according to the first aspect of the present invention is an optical display device production system in which an optical member is bonded to an optical display component, wherein the optical display device is in a display area of the optical display component. A belt-shaped optical member sheet of a corresponding width is unwound together with a separator sheet from a raw roll, and the optical member sheet is cut with a length corresponding to the display area leaving the separator sheet, thereby forming the optical member, A supply unit including a supply line for supplying the optical member, and a plurality of the optical members sequentially supplied by the one supply line are alternately attached and held on each holding surface, and each holding surface is held on each holding surface. a plurality of bonding portions to be bonded held by the optical member to each separate the optical display component, at least two of the bonding unit of the plurality of bonding unit Characterized in that it comprises a and a moving device for moving simultaneously between the optical display components and the supply unit.

(6) An optical display device production system according to the second aspect of the present invention is an optical display device production system in which an optical member is bonded to an optical display component. A strip-shaped optical member sheet having a width wider than the length of either one of the long side and the short side is unwound together with the separator sheet from the original roll, and the optical member sheet is left in the display area while leaving the separator sheet. A sheet piece is cut by a length longer than the length of one of the long side and the short side, a supply unit including a supply line for supplying the sheet piece, and one supply line sequentially A plurality of supplied sheet pieces are alternately pasted and held on the holding surfaces, and the sheet pieces held on the holding surfaces are respectively separated into the optical display components. A plurality of bonding unit that case, a moving device for moving simultaneously between at least two of the bonding unit and the supply unit and the optical display component among the plurality of bonding portions, bonded to the optical display components A cutting device that cuts off an excess portion disposed outside the portion corresponding to the bonding surface from the combined sheet pieces, and forms the optical member having a size corresponding to the bonding surface. And
In addition, the "bonding surface" in the said structure refers to the surface facing the sheet piece of an optical display component, and specifically, "the outer periphery of a bonding surface" is a sheet piece in an optical display component. It refers to the outer peripheral edge of the bonded substrate.
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” refers to 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.

Claims (11)

An optical display device production system in which an optical member is bonded to an optical display component,
A belt-shaped optical member sheet having a width corresponding to the display area of the optical display component is unwound together with the separator sheet from the raw roll, and the optical member sheet is cut to a length corresponding to the display area, leaving the separator sheet. A supply unit including a supply line for forming the optical member and supplying the optical member;
A plurality of the optical members sequentially supplied by one supply line are alternately pasted and held on the respective holding surfaces, and the optical members held on the respective holding surfaces are separately provided on the respective optical display components. A plurality of bonding sections to be bonded;
A moving device for moving the plurality of bonding sections between the supply section and the optical display component;
Optical display device production system including. The supply unit includes a peeling unit for peeling the optical member from the separator sheet,
The plurality of bonding parts include a first bonding part and a second bonding part,
When the said 1st bonding part is bonding the said optical member hold | maintained at the said holding surface of said 1st bonding part to the said optical display component, said 2nd bonding part is said 2nd bonding part. Is moved to the peeling portion, and when the second bonding portion is bonding the optical member held on the holding surface of the second bonding portion to the optical display component, The production system for an optical display device according to claim 1, wherein the first bonding unit is moved to the peeling unit. A first suction stage having a suction surface that sucks and holds the optical display component to which the optical member held on the holding surface of the first bonding portion is bonded;
A second suction stage having a suction surface that sucks and holds the optical display component to which the optical member held on the holding surface of the second bonding portion is bonded;
The moving device moves the first bonding portion between the peeling portion and the optical display component held by the first suction stage, and moves the second bonding portion to the peeling portion and the The production system for an optical display device according to claim 2, wherein the optical display device is moved between the optical display component and the second display stage. A recovery stage that is disposed at a position that does not interfere with the first suction stage and the second suction stage, and that recovers a defective optical member including a defect;
The said moving apparatus is a production system of the optical display device of Claim 3 which moves the said bonding part holding the said defective article optical member to the said collection | recovery stage. The collection stage is disposed on an extension of the supply line;
5. The optical display device production system according to claim 4, wherein the first suction stage and the second suction stage are arranged at positions facing each other across the recovery stage. 6. An optical display device production system in which an optical member is bonded to an optical display component,
A strip-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 together with the separator sheet from the raw roll, and the optical member sheet is removed from the separator. A supply unit including a supply line for supplying the sheet piece by cutting a sheet piece by cutting a length longer than the length of either one of the long side and the short side of the display area while leaving the sheet; ,
A plurality of sheet pieces sequentially supplied by one supply line are alternately pasted and held on each holding surface, and the sheet pieces held on each holding surface are stuck on separate optical display components. A plurality of bonding sections to be combined,
A moving device for moving the plurality of bonding sections between the supply section and the optical display component;
A cutting device that cuts off an excess portion disposed outside the portion corresponding to the bonding surface from the sheet piece bonded to the optical display component, and forms the optical member having a size corresponding to the bonding surface; ,
Optical display device production system including. A detection device for detecting an outer peripheral edge of a bonding surface between the optical display component and the sheet piece to which the sheet piece is bonded;
The production system for an optical display device according to claim 6, wherein the cutting device cuts the sheet piece along an outer peripheral edge of the bonding surface between the optical display component and the sheet piece detected by the detection device. . The supply unit includes a peeling unit for peeling the sheet piece from the separator sheet,
The plurality of bonding parts include a first bonding part and a second bonding part,
When the said 1st bonding part is bonding the said sheet piece hold | maintained at the said holding surface of said 1st bonding part to the said optical display component, said 2nd bonding part is said 2nd bonding part. Is moved to the peeling portion, and when the second bonding portion is bonding the sheet piece held on the holding surface of the second bonding portion to the optical display component, The production system of the optical display device according to claim 6 or 7, wherein the first bonding part is moved to the peeling part. A first suction stage having a suction surface for sucking and holding the optical display component to which the sheet piece held on the holding surface of the first bonding portion is bonded;
A second suction stage having a suction surface that sucks and holds the optical display component to which the sheet piece held on the holding surface of the second bonding portion is bonded;
The moving device moves the first bonding portion between the peeling portion and the optical display component held by the first suction stage, and moves the second bonding portion to the peeling portion and the The optical display device production system according to claim 8, wherein the optical display device is moved between the second display stage and the optical display component. A recovery stage that is disposed at a position that does not interfere with the first suction stage and the second suction stage, and that recovers defective sheet pieces including defects;
The said moving apparatus is a production system of the optical display device of Claim 9 which moves the said bonding part holding the said inferior goods sheet piece to the said collection | recovery stage. The collection stage is disposed on an extension of the supply line;
11. The optical display device production system according to claim 10, wherein the first suction stage and the second suction stage are arranged at positions facing each other across the recovery stage.

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