WO2014132950A1

WO2014132950A1 - Production system for optical display device

Info

Publication number: WO2014132950A1
Application number: PCT/JP2014/054461
Authority: WO
Inventors: 達也土岡; 廷槐陳
Original assignee: 住友化学株式会社
Priority date: 2013-02-27
Filing date: 2014-02-25
Publication date: 2014-09-04
Also published as: JP2014194513A; KR102062941B1; TWI600544B; CN105008989B; KR20150121004A; JP5724147B2; TW201441046A; CN105008989A

Abstract

This production system for an optical display device includes a bonding device that rolls out a belt-shaped optical member sheet from a starting material roll, the optical member sheet having a width corresponding to the display region of an optical display part, and, after cutting the optical member sheet to a length corresponding to the display region to make an optical member, bonds the optical member to the optical display part. The bonding device includes: an unrolling unit that rolls out the optical member sheet from the starting material roll along with a separator sheet; a determining unit that determines whether the optical member sheet rolled out by the unrolling unit contains any defects; a cutting unit that cuts the optical member sheet, while leaving the separator sheet, and on the basis of the determination results of the determining unit forms non-defective optical members not containing defects and defective optical members containing defects; a peeling unit that peels non-defective optical members and defective optical members from the separator sheet; a suction stage having a suction surface that suctions and holds the optical display part; a collecting stage that is disposed in a position so as not to overlap the suction stage as seen in the normal direction to the suction surface and that collects defective optical members; a bonding unit that holds non-defective optical members that have been peeled from the separator sheet and bonds the non-defective optical members to optical display parts, and also holds defective optical members that have been peeled from the separator sheet and bonds the defective optical members to the collecting stage; and a movement device that moves the bonding unit between the peeling unit and the optical display part and between the peeling unit and the collecting stage.

Description

Optical display device production system

The present invention relates to an optical display device production system.
This application claims priority based on Japanese Patent Application No. 2013-037565 filed in Japan on February 27, 2013 and Japanese Patent Application No. 2013-104407 filed in Japan on May 16, 2013. The contents are incorporated here.

Conventionally, in a production system for an optical display device such as a liquid crystal display, an optical member such as a polarizing plate to be bonded to a liquid crystal panel (optical display component) is formed from a long film into a sheet piece having a size matching the display area of the liquid crystal panel After being cut out, packed and transported to another line, it may be bonded to a liquid crystal panel (see, for example, Patent Document 1).

As an apparatus used in a production system of an optical display device, an exclusion apparatus that eliminates an optical member including a defect (defective product optical member) is known (for example, see Patent Document 2). The exclusion device of Patent Literature 2 is configured to move an exclusion roller so that a defective optical member is attached to an exclusion film via an adhesive layer and wound.

Japanese Unexamined Patent Publication No. 2003-255132 Japanese Patent No. 4551477

However, in the configuration of Patent Document 2, since the exclusion film different from the separator is collected together with the defective optical member, the exclusion film becomes a waste material every time the defective optical member is removed. In addition, in this configuration, a device for collecting the exclusion film is required in addition to the device for collecting the separator, so that the device configuration may be complicated.

The present invention has been made in view of such circumstances, and an object thereof is to provide an optical display device production system capable of effectively collecting defective optical members.

In order to achieve the above object, the present invention employs the following means.
(1) That is, 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, and displays the optical display component. While the belt-shaped optical member sheet having a width corresponding to the region is unwound from the original fabric roll, the optical member sheet is cut to a length corresponding to the display region to form the optical member, and then the optical member is the optical member. The bonding apparatus includes a bonding apparatus for bonding to a display component, and the bonding apparatus unwinds the optical member sheet together with a separator sheet from the raw roll, and the optical member sheet unwound by the unwinding section. A determination unit that determines whether or not a defect is included, and based on a determination result of the determination unit, the optical member sheet is cut leaving the separator sheet, A cut part for forming a non-defective optical member that does not include a defect or a defective optical member that includes the defect, a peeling part that separates the non-defective optical member or the defective optical member from the separator sheet, and the optical display component A suction stage having a suction surface to be held, a recovery stage that is disposed at a position that does not overlap with the suction stage when viewed from the normal direction of the suction surface, and peels from the separator sheet Holding the bonded non-defective optical member and bonding to the optical display component, holding the defective optical member peeled from the separator sheet and bonding to the recovery stage; and the bonding And a moving device that moves the joint portion between the peeling portion and the optical display component or between the peeling portion and the recovery stage. To.

(2) In the production system for an optical display device according to (1), the peeling unit and the suction stage are arranged at positions adjacent to each other along a conveyance direction of the optical member sheet, and the collection stage is The optical member sheet may be disposed at a position adjacent to the suction stage in a direction orthogonal to the conveyance direction of the optical member sheet.

(3) In the production system for an optical display device according to (1), the separation unit, the suction stage, and the collection stage may be arranged linearly along the conveyance direction of the optical member sheet. Good.

(4) In the optical display device production system according to (3) above, the recovery stage may be disposed at a position facing the peeling portion with the suction stage interposed therebetween.

(5) In the optical display device production system according to (3) above, the collection stage may be disposed between the peeling unit and the suction stage.

(6) In the optical display device production system according to any one of (1) to (5), a mark is placed on the defect portion of the optical member sheet based on the determination result of the determination unit. The cutting unit may further include a marking device attached thereto, and the cut unit may cut a portion on the upstream side of the edge of the mark on the upstream side in the conveyance direction of the optical member sheet to form the defective optical member.

(7) An optical display device production system according to a 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, and the display area of the optical display component While unwinding the belt-shaped optical member sheet having a width wider than the length of either one of the long side and the short side from the original roll, the optical member sheet is either the long side or the short side of the display region. After cutting to a length longer than the length of the other side to make a sheet piece, a bonding apparatus for bonding the sheet piece to the optical display component, and the sheet piece bonded to the optical display component A cutting device that cuts off an excess portion disposed outside a portion facing the display region and forms the optical member having a size corresponding to the display region, and the bonding device includes the optical member sheet. The original Based on the unwinding part to be unwound together with the separator sheet from the roll, the determination part for determining whether or not the optical member sheet unwound by the unwinding part contains a defect, and the determination result of the determination part, Cutting the optical member sheet leaving the separator sheet, and forming a non-defective sheet piece including the defect or a defective sheet piece including the defect; and the non-defective sheet piece or the defective sheet piece. A separation part for separating from the separator sheet, a suction stage having a suction surface for sucking and holding the optical display component, and a position that does not overlap the suction stage when viewed from the normal direction of the suction surface, A collection stage for collecting defective sheet pieces, and the optical display component holding the non-defective sheet pieces peeled from the separator sheet While pasting, holding the defective sheet piece peeled from the separator sheet and pasting to the recovery stage, between the peeling part and the optical display component, the pasting part, Alternatively, a moving device that moves between the peeling unit and the recovery stage is included.

(8) An optical display device production system according to a third aspect of the present invention is an optical display device production system in which an optical member is bonded to an optical display component. While unwinding the belt-shaped optical member sheet having a width wider than the length of either one of the long side and the short side from the original roll, the optical member sheet is either the long side or the short side of the display region. After cutting into a sheet piece that is longer than the length of the other side, a bonding apparatus that bonds the sheet piece to the optical display component, and the optical display component on which the sheet piece is bonded A detection device that detects an outer peripheral edge of the bonding surface with the sheet piece, and a surplus portion disposed outside the portion corresponding to the bonding surface from the sheet piece bonded to the optical display component, The size corresponding to the bonding surface A cutting device for forming the optical member, and the laminating device unwinds the optical member sheet from the raw roll together with a separator sheet, and the unwinding unit unwinds the optical member sheet. A determination unit that determines whether or not the optical member sheet includes a defect, and a non-defective sheet that does not include the defect by cutting the optical member sheet leaving the separator sheet based on the determination result of the determination unit A cut part that forms a defective sheet piece including the piece or the defect, a peeling part that peels the non-defective sheet piece or the defective sheet piece from the separator sheet, and a suction surface that sucks and holds the optical display component And a collection stage that is disposed at a position that does not overlap the suction stage when viewed from the normal direction of the suction surface and collects the defective sheet pieces And hold the non-defective sheet piece peeled from the separator sheet to be bonded to the optical display component, and hold the defective sheet piece peeled from the separator sheet to be bonded to the recovery stage. And a moving device that moves the bonding portion between the peeling portion and the optical display component, or between the peeling portion and the recovery stage, and the cutting device includes: The sheet piece is cut along an outer peripheral edge of the bonding surface between the optical display component and the sheet piece detected by the detection device.
In addition, the “bonding surface between the optical display component and the sheet piece” in the above configuration refers to a surface facing the sheet piece of the optical display component, and “the outer peripheral edge of the bonding surface” specifically refers to In the optical display component, the outer peripheral edge of the substrate on which the sheet piece is bonded is indicated.
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.

According to the present invention, it is possible to provide an optical display device production system capable of effectively collecting defective optical members.

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. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. 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 mark in an optical member sheet | seat. It is a figure for demonstrating the cutting position for forming a non-defective sheet piece. It is a figure for demonstrating the cutting position for forming inferior goods sheet piece in case of one mark. It is a figure for demonstrating the cut position for forming the inferior goods sheet piece in case there are two or more marks. It is a figure for demonstrating the cut position for forming the inferior-goods sheet piece in case a mark exists in the joint of two adjacent sheet pieces. It is a collection flowchart of a defective product sheet piece. It is a schematic side view of the 1st bonding apparatus which concerns on 2nd embodiment. It is a schematic side view of the 1st bonding apparatus which concerns on 3rd embodiment. It is a schematic block diagram of the film bonding system which concerns on 4th embodiment. It is a top view of the film bonding system which concerns on 4th 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 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.

Hereinafter, embodiments of the present invention will be described 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.

FIG. 1 is a schematic configuration diagram of a film bonding system 1 of the present 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.

FIG. 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 bonded to the liquid crystal panel P. The optical member sheet FX includes a film-shaped optical member main body F1a, an adhesive layer F2a provided on one surface (the upper surface in FIG. 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 body F1a may have a single-layer structure composed of a single 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 below 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, From the second terminal position 7b of the sub-conveyor 7 to the end point 5b of the main conveyor 5, the liquid crystal panel P And a fifth transport device 22 for transporting.

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.

The sheet piece (corresponding to the optical member F1X) of the bonding sheet F5 cut out to a predetermined length from the band-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 disc-shaped rotary table having a rotation axis along the vertical direction, and is driven to rotate 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 first bonding carry-in / out position 11c, the liquid crystal panel P is carried into the first bonding apparatus 13 by a transport 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 device 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 disc-shaped rotary table having a rotation axis along the vertical direction, and is driven to rotate 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 this 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 second rotary index 16 has a position (left end portion in FIG. 5) rotated 90 ° clockwise from the bonding inspection position 16d as a second rotary terminal 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 and horizontal directions. 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 details of the first bonding apparatus 13 will be described 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. 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 unwinds the 1st optical member sheet | seat F1 from the raw fabric roll R1 in which the 1st optical member sheet | seat F1 was wound, and the 1st optical member sheet | seat F1. The sheet conveying device 31, the defect detecting device 60, the marking device 63, the mark detecting device 64, the suction stage 41, the recovery stage 42, and the bonding head 32 (bonding unit). ), A moving device 70, and a rotating device 80.

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 part 31a which feeds out along a longitudinal direction, the cutting device 31b (cut part) which performs a half cut to the 1st optical member sheet | seat F1 unwound from the original fabric roll R1, and the 1st optical member sheet which gave the half cut Knife edge 31c (peeling portion) for separating F1 from separator sheet F3a by winding F1 at an acute angle, and winding for holding separator roll R2 for winding separator sheet F3a that has become independent through knife edge 31c Of the first separator sheet F3a between the portion 31d and the unwinding portion 31a and the winding portion 31d. A plurality of rollers (for example, six

rollers

311, 312, 313, 314, 315, and 316 in this embodiment) and at least one of the plurality of rollers (for example, a roller 311 in this embodiment) forming a feeding path And a length measuring device 33 provided.

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 start point of the sheet conveying device 31 and the winding unit 31d positioned at the end 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 conveyance 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 (transport distance) by which the first optical member sheet F1 is transported 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.

FIG. 8 is a schematic plan view of the mark M in the first optical member sheet F1.
As shown in FIG. 8, a plurality of marks M are attached to the defective portions in the first optical member sheet F1 being conveyed. The plurality of marks M are unevenly distributed in the transport direction (arrow direction) of the first optical member sheet F1. The planar shape of the mark M is a rectangle, and the length of one side of the rectangle is about 10 mm. At least a part of the mark M includes a defect. The mark M is attached in an area wider than the defect portion so as to include the defect portion. Note that the planar shape of the mark M is not limited to a rectangle, but may be a circle or a line.

Returning to FIGS. 6 and 7, the mark detection device 64 detects the mark marked on the 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 in the thickness direction of the first optical member sheet F1 over the entire width in the sheet width direction of the first optical member sheet F1 (performs a half cut).

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.

The control device 25 refers to the mark position information, and refers to the section corresponding to the unit length in the longitudinal direction of the first optical member F11 from the first cut line formed by the cutting device 31b (hereinafter, 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).

FIG. 9 is a diagram for explaining a cutting position for forming a non-defective sheet piece.

As shown in FIG. 9, when it is determined that there is no mark in the section of the next sheet piece, the control device 25 performs the next operation from the previously formed cut line (hereinafter referred to as the first cut line L1). The formation position of the second cut line L2 is determined so that the distance on the first optical member sheet F1 to the cut line to be formed (hereinafter referred to as the second cut line L2) is the unit length. To do.

At the timing when the first optical member sheet F1 is conveyed by a unit length (for example, 200 mm) from the position where the first cut line L1 is formed, the control device 25 causes the cutting device 31b to move to the second cut line L2. The cutting device 31b is controlled so as to form.

The cutting device 31b cuts the first optical member sheet F1 at the timing when the first optical member sheet F1 is conveyed by a unit length. Thereby, in the section from the 1st cut line L1 to the 2nd cut line L2 in the 1st optical member sheet | seat F1, the non-defective sheet piece F20 which does not contain a fault is formed.

10 to 12 are diagrams for explaining a cutting position for forming a defective sheet piece.
FIG. 10 is a diagram for explaining a cut position for forming a defective sheet piece when there is one mark M. FIG.

As shown in FIG. 10, when the control device 25 determines that only one mark M exists in the section of the next sheet piece, a cut line (hereinafter referred to as a third line) on the upstream side of the conveyance path from the mark M. The formation position of the cut line L3) is determined.

Note that, from the viewpoint of improving the yield of non-defective optical members in the first optical member sheet F1, the control device 25 has a third position as close as possible to the edge of the mark M on the upstream side in the transport direction of the first optical member sheet F1. The formation position of the cut line is determined, and the formation position of the third cut line is preferably determined at a position in contact with the edge of the mark M.

The control device 25 controls the cutting device 31b so that the cutting device 31b forms the third cut line L3 on the upstream side of the conveyance path from the mark M. The cutting device 31b cuts a portion on the subsequent side of the edge of the mark M on the upstream side in the transport direction of the first optical member sheet F1. Thereby, in the section from the 1st cut line L1 to the 3rd cut line L3 in the 1st optical member sheet | seat F1, the inferior goods sheet piece F21 containing a fault (one mark M) is formed.

FIG. 11 is a diagram for explaining a cutting position for forming a defective sheet piece when there are a plurality of marks M (for example, three in this embodiment).

As shown in FIG. 11, when the control device 25 determines that there are three marks M (first mark M1, second mark M2, and third mark M3) in the section of the next sheet piece, the three marks A formation position of a cut line (hereinafter referred to as a third cut line L3) is determined on the upstream side of the conveyance path from the third mark M3 located on the most upstream side in the sheet conveyance direction.

From the viewpoint of improving the yield of non-defective optical members in the first optical member sheet F1, the control device 25 is positioned as close as possible to the edge of the third mark M3 on the upstream side in the transport direction of the first optical member sheet F1. The formation position of the third cut line is preferably determined, and the formation position of the third cut line is preferably determined at a position in contact with the end edge of the mark M.

The control device 25 controls the cutting device 31b so that the cutting device 31b forms the third cut line L3 on the upstream side of the transport path from the third mark M3. The cutting device 31b cuts a portion on the subsequent side of the edge of the third mark M3 on the upstream side in the transport direction of the first optical member sheet F1. Thereby, in the section from the 1st cut line L1 to the 3rd cut line L3 in the 1st optical member sheet | seat F1, the inferior goods sheet piece F22 containing a fault (three marks M) is formed.

FIG. 12 is a diagram for explaining a cutting position for forming a defective sheet piece when the mark M is located at a joint between two adjacent sheet pieces (original cut line forming position).

As shown in FIG. 12, when the control device 25 determines that only one mark M exists at the joint between two adjacent sheet pieces, the control device 25 sets the mark M on the upstream side in the transport direction of the first optical member sheet F1. The formation position of the third cut line L3 is determined at a position in contact with the edge.

The control device 25 controls the cutting device 31b so that the cutting device 31b forms the third cut line L3 on the upstream side of the conveyance path from the mark M. The cutting device 31b cuts a portion on the subsequent side of the edge of the mark M on the upstream side in the transport direction of the first optical member sheet F1. In a section from the first cut line L1 to the third cut line L3 in the first optical member sheet F1, a defective sheet piece F23 including a defect (one mark M) is formed.

Returning to FIG. 6, the knife edge 31 c is located below the first optical member sheet F <b> 1 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 F <b> 1. Extend. 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 the acute end portion. 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 a separator peeling position 31e, and the holding surface 32a of the bonding head 32 is in contact with the tip of the knife edge 31c from above, so that the surface protective film F4a of the sheet piece of the bonding sheet F5 is obtained. (The surface opposite to the bonding surface) is bonded to the holding surface 32a of the bonding head 32.

6 and 7, the suction stage 41 is disposed at a position adjacent to the knife edge 31c along the sheet conveyance direction. The suction stage 41 sucks and holds the liquid crystal panel P at the time of bonding. The suction stage 41 has a suction surface 41a that sucks and holds the liquid crystal panel P.

The recovery stage 42 is disposed at a position that does not overlap the suction stage 41 when viewed from the normal direction of the suction surface 41a. Specifically, the collection stage 42 is disposed at a position adjacent to the suction stage 41 in a direction orthogonal to the sheet conveyance direction. In other words, the collection stage 42 is disposed on the side of the sheet conveyance line. The collection stage 42 collects defective sheet pieces. The collection stage 42 has a support surface 42a that supports the defective sheet piece.

The bonding head 32 holds the non-defective sheet piece peeled off from the separator sheet F3a and sticks it to the liquid crystal panel P, and holds the defective product sheet piece peeled off from the separator sheet F3a and sticks it to the recovery stage 42. To do.

The pasting head 32 has an arc-shaped holding surface 32a that is parallel to the sheet width direction and convex downward. The holding surface 32a has, for example, a weaker bonding force than the bonding surface (adhesive layer F2a) of the bonding sheet F5, and the surface protective film F4a of the bonding sheet F5 can be repeatedly bonded and peeled off.

The laminating head 32 tilts so as to be parallel to the sheet width direction and follow the curvature of the holding surface 32a so as to be centered on the axis along the sheet width direction above the knife edge 31c. 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 is inclined so that the holding surface 32a faces downward and the curved one end side (right side in FIG. 6) of the holding surface 32a is on the lower side, and the curved one end side of the holding surface 32a is the knife edge 31c. 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, and can be appropriately moved between the separator peeling position 31e and the first bonding position 11c. 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 front end portion of the bonding sheet F5 is bonded to the holding surface 32a, the engagement with the arm portion 71b is cut. It can be tilted freely, and from this state, it is tilted passively with the feeding of the bonding sheet F5. When the bonding head 32 tilts until the entire bonding sheet F5 is bonded to the holding surface 32a, the tilting is locked by, for example, engaging with the arm portion 71b in this inclined posture, and the first bonding position in this state. 11c is moved upward.

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.

The moving device 70 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 42. As shown in FIG. 7, the moving device 70 includes a first moving device 71, a second moving device 72, and a third moving device 73.

The first moving device 71 moves the bonding head 32 along a first direction V1 parallel to the normal direction of the suction surface 41a. The first moving device 71 includes a power unit 71a such as an actuator, and an arm unit 71b that can be moved along the first direction V1 by the power unit 71a. The bonding head 32 is attached to the tip of the arm portion 71b.

The second moving device 72 moves the bonding head 32 between the knife edge 31c and the liquid crystal panel P along a second direction V2 parallel to the sheet conveying direction. The second moving device 72 includes a guide rail 72a that extends along the second direction V2, and a moving portion 72b that can move along the guide rail 72a.

The third moving device 73 moves the bonding head 32 between the knife edge 31c and the collection stage 42 along a third direction V3 parallel to the direction orthogonal to the sheet conveying direction. The third moving device 73 includes a guide rail 73a extending along the third direction V3 and a moving portion 73b movable along the guide rail 73a.

The guide rail 73a is attached to the side opposite to the guide rail 72a side of the moving part 72b. The power unit 71a is attached to the side of the moving unit 73b opposite to the guide rail 73a.

The rotation device 80 rotates the suction stage 41 in a horizontal plane based on the imaging result of the second detection camera 35, and the liquid crystal panel P held by the suction stage 41 and the bonding sheet F5 held by the bonding head 32, Adjust the relative bonding position. For example, the rotation device 80 includes a motor having a rotation axis parallel to the normal direction of the suction surface 41 a of the suction stage 41 and a transmission mechanism that transmits the rotational force of the motor to the suction stage 41. The suction stage 41 is attached to the transmission mechanism.

The 2nd moving apparatus 72 moves the bonding head 32 to the front-end | tip part of the knife edge 31c which is a peeling position of the separator sheet F3a. The 1st moving apparatus 71 presses the holding surface 32a against the front-end | tip part of the knife edge 31c 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 is pressed. The tip is attached to the holding surface 32a.

In the present embodiment, a first detection camera 34 is provided below the front end of the knife edge 31c to detect the front end of the sheet piece of the bonded sheet F5 at the relevant site on the downstream side of the sheet conveyance. 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.

For the alignment of the liquid crystal panel P and the bonding sheet F5 (first optical member F11) performed by the first bonding device 13, the control device 25 as the first alignment device uses first to fourth detection cameras 34 to 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, at the first bonding position 11c of the first rotary index 11, a pair of third detection cameras 36 for performing horizontal alignment of the liquid crystal panel P on the first bonding position 11c are provided. 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 detection camera 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, there is provided an alignment table 39 on which the liquid crystal panel P is placed and the horizontal alignment is possible. The alignment table 39 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 provided above the adsorption | suction stage 41 which is a bonding position, and a pair of 3rd detection cameras 36 for performing horizontal alignment of liquid crystal panel P are provided. (See FIGS. 5 and 6).

Also in the 2nd bonding apparatus 15, a pair of 4th detection camera 37 for performing horizontal alignment of liquid crystal panel P is provided above the adsorption | suction stage 41 which is also a bonding position (refer 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 camera 38 for performing horizontal alignment of liquid crystal panel P is provided above the adsorption | suction stage 41 which is also a bonding position (refer 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.

The suction stage 41 in each

bonding apparatus

13, 15, 18 is driven and controlled by the control apparatus 25 based on the detection information of each detection camera 34-38. 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 includes 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. The storage unit of the control device 25 records a program that causes each unit of the film bonding system 1 to execute processing for eliminating defective optical members by causing the arithmetic processing unit to control each unit of the film bonding system 1. Has been. 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.

Next, the recovery flow for defective sheet pieces in this embodiment will be described together with the bonding flow for non-defective sheet pieces. FIG. 13 is a flowchart for collecting defective sheet pieces.

As shown in FIG. 13, the presence or absence of a defect in the first optical member sheet F1 is determined by the determination unit (step S1 shown in FIG. 13).

When the determination unit determines “no defect”, the cutting device 31b (see FIG. 6) determines the length of the display area P4 in the sheet conveyance direction of the first optical member sheet F1 (in the present embodiment, the display area P4). Each time the sheet is fed out by a length equivalent to the long side length), a half-cut is performed over the entire width along the sheet width direction to form a non-defective sheet piece (step S2 shown in FIG. 13).

Next, the whole non-defective sheet piece of the bonding sheet F5 is bonded to the holding surface 32a by the bonding head 32 (see FIG. 6) (step S3 shown in FIG. 13).

Next, the bonding head 32 is moved between the knife edge 31c and the liquid crystal panel P by the moving device 70 (see FIG. 6) (step S4 shown in FIG. 13). And the non-defective sheet piece peeled from the separator sheet F3a is bonded to the liquid crystal panel P by the bonding head 32.

On the other hand, when the determination unit determines that “there is a defect”, the marking device 63 (see FIG. 6) marks the defect portion (step S5 shown in FIG. 13). Next, the mark is detected by the mark detection device 64 (see FIG. 6). Next, the control device 25 determines the cut line formation position so that the cut line is positioned on the upstream side of the conveyance path from the mark M.

Next, the cutting device 31b performs half-cut across the entire width in the sheet width direction at the portion on the subsequent side of the edge of the mark M on the upstream side in the transport direction of the first optical member sheet F1, and the defective sheet A piece is formed (step S6 shown in FIG. 13).

Next, the whole defective sheet piece of the bonding sheet F5 is bonded to the holding surface 32a by the bonding head 32 (step S7 shown in FIG. 13).

Next, the bonding head 32 is moved between the knife edge 31c and the collection stage 42 by the moving device 70 (step S8 shown in FIG. 13). Then, the defective sheet piece peeled from the separator sheet F <b> 3 a is bonded to the support surface 42 a of the collection stage 42 by the bonding head 32. For example, a waste material sheet or the like is disposed on the support surface 42a, 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.

As described above, the film bonding system 1 in the above embodiment is formed by bonding the optical member F1X to the liquid crystal panel P, and has a band-like optical width corresponding to the display region P4 of the liquid crystal panel P. A bonding apparatus that unwinds the member sheet FX from the raw roll R1 and cuts the optical member sheet FX with a length corresponding to the display region P4 to form the optical member F1X, and then bonds the optical member F1X to the liquid crystal panel P. The

laminating devices

13, 15, and 18 include the unwinding portion 31a that unwinds the optical member sheet FX together with the separator sheet F3a from the raw fabric roll R1, and the optical unwinded by the unwinding portion 31a. A determination unit that determines whether or not a defect is included in the member sheet FX, and based on the determination result of the determination unit, the optical member sheet FX is separated from the separator sheet F3a. A cutting device 31b that forms a non-defective sheet piece that does not include defects or a defective sheet piece that includes defects, a knife edge 31c that peels the non-defective sheet piece or the defective sheet piece from the separator sheet F3a, and liquid crystal A suction stage 41 having a suction surface 41a for sucking and holding the panel P; and a collection stage 42 that is disposed at a position that does not overlap the suction stage 41 when viewed from the normal direction of the suction surface 41a and collects defective sheet pieces The non-defective sheet piece peeled from the separator sheet F3a is bonded to the liquid crystal panel P, and the defective sheet piece peeled from the separator sheet F3a is held and bonded to the recovery stage 42. And the bonding head 32 between the knife edge 31c and the liquid crystal panel P or the knife edge 31c and the recovery stage A moving device 70 for moving to and from the 2, is intended to include. Further, the knife edge 31c and the suction stage 41 are arranged at positions adjacent to each other along the transport direction of the optical member sheet FX, and the collection stage 42 is in the direction orthogonal to the transport direction of the optical member sheet FX. Are arranged at positions adjacent to each other. In addition, the marking device 63 further includes a marking device 63 that marks a defective portion of the optical member sheet FX based on the determination result of the determination unit, and the cutting device 31b includes an end of the mark M on the upstream side in the conveyance direction of the optical member sheet FX. A defective sheet piece is formed by cutting a portion on the subsequent side of the edge.

According to this configuration, the defective sheet piece can be discarded and pasted on the collection stage 42.
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. In addition, since the defective sheet piece can be collected using the collection stage 42, 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 42 is disposed at a position that does not overlap with the suction stage 41 in plan view, it is possible to prevent foreign matters from adhering to the surface of the liquid crystal panel P.
Further, since the collection stage 42 is disposed on the side of the sheet conveyance line, it is not necessary for an operator to enter the sheet conveyance line when discarding defective sheet pieces stacked on the collection stage 42, and the defective sheet The piece can be easily discarded. Further, the production line can be shortened, and the production tact can be shortened.

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 sheet piece FXm 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 moves the liquid crystal panel P to a loading position (respective

rotary starting positions

11a, 16a), a bonding position (removing each suction stage 41), and a carry-out position (respective rotary

final positions

11b, 16b). By providing the

rotary indexes

11 and 16 to be switched, the transport direction of the liquid crystal panel P can be efficiently switched and the length of the

rotary indexes

11 and 16 can be suppressed as a part of the line, increasing the degree of freedom of system installation. Can do.

(Second embodiment)
Then, the structure of the 1st bonding apparatus which concerns on 2nd embodiment is demonstrated. FIG. 14 is a schematic side view of the first bonding apparatus 113 according to the present embodiment. In addition, the 2nd bonding apparatus and the 3rd bonding apparatus abbreviate | omit the detailed description as what has the same structure. In FIG. 14, the first detection camera 34, the second detection camera 35, and the third detection camera 36 are not shown for convenience. In the following description, the same reference numerals are given to components common to the first embodiment, and detailed description thereof is omitted.

As shown in FIG. 14, the knife edge 31c, the suction stage 41, and the collection stage 42 are linearly arranged along the sheet conveyance direction. The collection stage 42 is disposed at a position facing the knife edge 31c with the suction stage 41 interposed therebetween.

Even in this configuration, the same effects as those of the first embodiment can be obtained, such as the adhesion of foreign matter or the like to the surface of the liquid crystal panel P can be suppressed. Furthermore, since the knife edge 31c, the suction stage 41, and the collection stage 42 are linearly arranged along the sheet conveying direction, the movement of the bonding head 32 by the moving device 70 can also be linear. Accordingly, the moving axis of the bonding head 32 by the moving device 70 can be reduced compared to the configuration in which the collecting stage 42 is disposed on the side of the sheet conveyance line, and defective product sheet pieces can be collected smoothly. .

(Third embodiment)
Then, the structure of the 1st bonding apparatus which concerns on 3rd embodiment is demonstrated. FIG. 15 is a schematic side view of the first bonding apparatus 213 according to the present embodiment. In addition, the 2nd bonding apparatus and the 3rd bonding apparatus abbreviate | omit the detailed description as what has the same structure. In FIG. 15, the first detection camera 34, the second detection camera 35, and the third detection camera 36 are not shown for convenience. In the following description, the same reference numerals are given to components common to the first embodiment, and detailed description thereof is omitted.

As shown in FIG. 15, the knife edge 31c, the suction stage 41, and the collection stage 42 are arranged linearly along the sheet conveyance direction. The collection stage 42 is disposed between the knife edge 31 c and the suction stage 41.

(Fourth embodiment)
Then, the structure of the film bonding system which concerns on 4th embodiment is demonstrated. FIG. 16 is a schematic configuration diagram of the film bonding system 2 of the present embodiment. In FIG. 16, 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 the first embodiment, the case where the width and length of the optical member F1X bonded by the bonding head 32 is equivalent to that in the display region P4 of the liquid crystal panel P is taken 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.

In this embodiment, as shown in FIG. 16, 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 excess portion outside the display area is cut off.

FIG. 17 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. 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

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. 17) as the first rotary starting position 11a. The 1st rotary index 11 makes the position (upper end part of FIG. 17) rotated 90 degrees clockwise from the 1st rotary first departure position 11a the 1st bonding carrying in / out position 11c.

In this first bonding carry-in / out position 11c, the liquid crystal panel P is carried into the first bonding apparatus 13 by a transport 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 (upper right end part of FIG. 17) rotated 45 degrees clockwise from the 1st bonding carrying in / out position 11c. 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. 17) 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. 17) 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. The 1st cutting device 51 puts together the excess part arrange | positioned on the outer side of the part which opposes the display area P4 of liquid crystal panel P 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 display area P4 of the liquid crystal panel P. .

In the present specification, the “part facing the display region P4” is a region having a size not less than the size of the display region P4 and not more than the size of the outer shape of the optical display component (liquid crystal panel P). And the area | region which avoided functional parts, such as an electrical component attachment part, is shown. That is, “separate the excess portion outside the portion facing the display region P4” includes the case where the excess portion is separated along the outer peripheral edge of the optical display component (liquid crystal panel P).

By bonding the first sheet piece F1m and the second sheet piece F2m to the liquid crystal panel P and then cutting them together, the first optical member F11 and the second optical member F12 are not misaligned, and the outside of the display area P4. The first optical member F11 and the second optical member F12 that match the shape of the periphery are obtained. Moreover, the cutting process of the 1st sheet piece F1m and the 2nd sheet piece F2m is also simplified.

The first optical device F11 and the first optical member F11 and the second surface piece of the liquid crystal panel P are separated from the first and second surfaces of the liquid crystal panel P by separating the excess portions of the first sheet piece F1m and the second sheet piece F2m from the second optical member bonding body PA2 by the first cutting device 51. 3rd optical member bonding body PA3 formed by bonding 2 optical member F12 is formed. 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.

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

At this 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. 17) 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. The 2nd cutting device 52 cut | disconnects the excess part arrange | positioned outside the part facing the display area P4 of liquid crystal panel P from the 3rd sheet piece F3m bonded by liquid crystal panel P, and displays area P4 of liquid crystal panel P An optical member having a size corresponding to (third optical member F13) is formed.

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. 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 first cutting device 51 and the second cutting device 52 are, for example, CO2 laser cutters. 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 first cutting device 51 and the second cutting device 52 cut the sheet piece FXm bonded to the liquid crystal panel P in an endless manner along the outer peripheral edge of the display region P4. The first cutting device 51 and the second cutting device 52 are connected to the same laser output device 53. By the first cutting device 51, the second cutting device 52, and the laser output device 53, the excess portion disposed outside the portion facing the display region P4 is separated from the sheet piece FXm, and an optical having a 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 the present embodiment, the second rotary index 16 has a position (left end portion in FIG. 17) rotated 90 ° clockwise from the second cutting position 16d as the second 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 conveyance apparatus 21 hold | maintains liquid crystal panel P (5th optical member bonding body PA5), and conveys it freely in a perpendicular 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 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.

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.

Thus, the bonding process by the film bonding system 2 is completed.

Hereinafter, the first bonding apparatus 13 will be described with an example of the bonding process of the bonding sheet F5 to the liquid crystal panel P. 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.

The suction stage 41 is driven and controlled by the control device 25 based on the detection information of each 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 vividness 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. 16). 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 to the liquid crystal panel P is, for example, as follows.

First, as shown in FIG. 18A, 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 a storage device (not shown) 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 (not shown), and the optical member sheet FX (cut) of the portion from which the sheet piece FXm is cut out. The direction of the average optical axis in the area defined by the lead-in line CL is detected.

For example, as shown in FIG. 18B, 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 above-described

cutting devices

51 and 52 detect the outer peripheral edge of the display area P4 of the liquid crystal panel P with a detecting means such as a camera, and the sheet piece FXm bonded to the liquid crystal panel P is along the outer peripheral edge of the display area P4. Cut endlessly. The outer peripheral edge of the display area P4 is detected by imaging the edge of the liquid crystal panel P, the alignment mark provided on the liquid crystal panel P, or the outermost edge of the black matrix provided in the display area P4. 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 FX is not limited to the above method. For example, one or a plurality of inspection points CP is selected from a plurality of inspection points CP (see FIG. 18A) 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 formed by bonding the optical member F1X to the liquid crystal panel P, and among the long side and the short side of the display region P4 of the liquid crystal panel P. While the belt-shaped optical member sheet FX having a width wider than the length of one of the sides is unwound from the original roll R1, the optical member sheet FX is placed on the other side of the long side and the short side of the display region P4. After being cut to a length longer than the length to form a sheet piece FXm, the sheet pieces FXm are bonded to the liquid crystal panel P, and the sheet pieces FXm bonded to the liquid crystal panel P are displayed. Cutting

devices

51 and 52 for cutting off an excess portion disposed outside the portion facing the region P4 and forming an optical member F1X having a size corresponding to the display region P4, and

bonding devices

13, 15, and 18 An unwinding unit 31a for unwinding the optical member sheet FX together with the separator sheet F3a from the raw roll R1, and a determination unit for determining whether or not the optical member sheet FX unwound by the unwinding unit 31a includes a defect. The cutting device 31b for forming the non-defective sheet piece or the non-defective sheet piece by cutting the optical member sheet FX while leaving the separator sheet F3a based on the determination result of the determining unit, and the non-defective sheet A suction stage 41 having a knife edge 31c for peeling a piece or a defective sheet piece from the separator sheet F3a, a suction surface 41a for sucking and holding the liquid crystal panel P, and a suction stage 41 as viewed from the normal direction of the suction surface 41a. A collection stage 42 that collects defective sheet pieces and a separator sheet F3a. A bonding head 32 that holds the peeled non-defective sheet pieces and bonds them to the liquid crystal panel P, and holds the defective product sheet pieces peeled from the separator sheet F3a and bonds them to the recovery stage 42, and a bonding head. And a moving device 70 that moves 32 between the knife edge 31c and the liquid crystal panel P or between the knife edge 31c and the collection stage 42.

According to this configuration, the defective sheet piece can be discarded and pasted on the collection stage 42.
Therefore, the defective sheet piece can be removed without using a removal film or the like separate from the separator. 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. In addition, since the defective sheet piece can be collected using the collection stage 42, 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.

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.

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

In addition, 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-sized 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.

Hereinafter, the film bonding system according to the fifth embodiment of the present invention will be described with reference to FIGS. In FIGS. 19 to 21, the illustration of the second sheet piece F2m is omitted for convenience. In this embodiment, the same code | symbol is attached | subjected to the structure similar to the film bonding system 2 demonstrated in the said embodiment, and detailed description is abbreviate | omitted. In addition, the optical member F1X in this embodiment is formed by separating the excess part of the outer side of the bonding surface from the sheet piece FXm bonded to the liquid crystal panel P.

The film bonding system according to the present embodiment includes a first detection device 91 (see FIG. 20). 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.

For example, as illustrated in FIG. 19, 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. 16).

In addition, 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. 20 is a schematic diagram of the first detection device 91.
As shown in FIG. 20, 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 respectively arranged in the four inspection areas CA (positions corresponding to the four corners of the first 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.

Further, as shown in FIG. 21, each of the imaging device 93 and the illumination light source 94 may be disposed at a position overlapping the edge ED along the normal direction of the first bonding surface SA1. A distance H1 between the first bonding surface SA1 and the center of the imaging surface 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 cut 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. 16) acquires the data of the edge ED of the first bonding surface SA1 stored in the storage device 24 (see FIG. 16), and the first optical member F11 is outside the liquid crystal panel P (see FIG. 16). 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.

16 and 17, the first cutting device 51 is provided on the downstream side of the panel conveyance from 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 region P4 and not more than the size of the outer shape (contour shape in plan view) of the liquid crystal panel P, and Indicates the size of the area that avoids functional parts such as electrical component mounting parts.

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. 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).

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.

Moreover, a film bonding system is provided with the 2nd detection apparatus 92 (refer FIG. 20). 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. 16).

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. 16) acquires the data of the edge of the second bonding surface stored in the storage device 24 (see FIG. 16), 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 a size not less than the size of the display region P4 and not more than the size of the outer shape (contour shape in plan view) of the liquid crystal panel P, and electric Indicates the size of the area that avoids the functional parts such as the parts mounting part. In the present embodiment, it is the size of the outer shape of the second substrate P2.

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 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, 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 a 1st sheet | seat along the outer periphery of the bonding surface (1st bonding surface SA1) of liquid crystal panel P and 1st sheet piece F1m which the imaging device 93 imaged. Each of the 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 imaging device 93 imaged.

As described above, according to the film bonding system of the present embodiment, after the sheet piece FXm larger than the display region P4 is bonded to the liquid crystal panel P, the liquid crystal panel P and the sheet on which the sheet piece FXm is bonded. By detecting the outer peripheral edge of the bonding surface with the piece FXm and cutting off the surplus portion arranged outside the portion corresponding to the bonding surface from the sheet piece FXm bonded to the liquid crystal panel P, the bonding surface The corresponding size optical member F1X can be formed on the surface of the liquid crystal panel P. As a result, the optical member F1X can be accurately provided up to the display area P4, and the frame area G outside the display area P4 can be narrowed to enlarge the display area and downsize the device.

In addition, in the film bonding system of the said embodiment, the outer periphery of the bonding surface is detected for every some liquid crystal panel P using a detection apparatus, and it pastes for every liquid crystal panel P based on the detected outer periphery. Set the cutting position of the joined sheet pieces. 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.

While preferred embodiments of the present invention have been described and described above, it should be understood that these are exemplary of the invention and should not be considered as limiting. Additions, omissions, substitutions, and other changes can be made without departing from the scope of the invention. Accordingly, the invention is not to be seen as limited by the foregoing description, but is limited by the scope of the claims.

DESCRIPTION OF

SYMBOLS

1,2 ... Film bonding system (production system of an optical display device), 13 ... 1st bonding apparatus (bonding apparatus), 15 ... 2nd bonding apparatus (bonding apparatus), 18 ... 3rd bonding apparatus (Bonding device), 25 ... control device, 31a ... unwinding portion, 31b ... cutting device (cutting portion), 31c ... knife edge (peeling portion), 32 ... bonding head (bonding portion), 32a ... holding surface , 41 ... Adsorption stage, 42 ... Recovery stage, 51 ... First cutting device, 52 ... Second cutting device, 63 ... Marking device, 70 ... Moving device, 91 ... First detection device (detection device), 92 ... Second Detection device (detection device), P ... Liquid crystal panel (optical display component), P4 ... Display area, F1 ... First optical member sheet (optical member sheet), F2 ... Second optical member sheet (optical member sheet), F3 ... Third optical member sheet (optical member sheet), F ... optical member sheet, 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 ... Raw roll, SA1 ... first bonding surface (bonding surface), ED ... edge of first bonding surface (outer peripheral edge of bonding surface)

Claims

An optical display device production system in which an optical member is bonded to an optical display component,
After unrolling the belt-shaped optical member sheet having a width corresponding to the display area of the optical display component from the original roll, the optical member sheet is cut to a length corresponding to the display area to obtain the optical member, Including a bonding apparatus for bonding the optical member to the optical display component;
The bonding device is
An unwinding section for unwinding the optical member sheet together with a separator sheet from the raw roll,
A determination unit that determines whether the optical member sheet unwound by the unwinding unit includes a defect; and
Based on the determination result of the determination unit, the optical member sheet is cut leaving the separator sheet, and a non-defective optical member not including the defect or a defective optical member including the defect is formed,
A peeling portion for peeling the non-defective optical member or the defective optical member from the separator sheet;
A suction stage having a suction surface for sucking and holding the optical display component;
A recovery stage that is disposed at a position that does not overlap the suction stage when viewed from the normal direction of the suction surface, and that recovers the defective optical member;
The non-defective optical member peeled from the separator sheet is held and bonded to the optical display component, and the defective optical member peeled from the separator sheet is held and bonded to the recovery stage. And
A moving device that moves the bonding part between the peeling part and the optical display component, or between the peeling part and the recovery stage;
An optical display device production system comprising:
The peeling part and the suction stage are arranged at positions adjacent to each other along the transport direction of the optical member sheet,
2. The optical display device production system according to claim 1, wherein the collection stage is disposed at a position adjacent to the suction stage in a direction orthogonal to a conveyance direction of the optical member sheet.
The production system for an optical display device according to claim 1, wherein the peeling unit, the suction stage, and the collection stage are arranged linearly along a conveyance direction of the optical member sheet.
4. The optical display device production system according to claim 3, wherein the recovery stage is disposed at a position facing the peeling portion with the suction stage interposed therebetween.
4. The optical display device production system according to claim 3, wherein the recovery stage is disposed between the peeling portion and the suction stage.
Based on the determination result of the determination unit, further includes a marking device that marks the defective part of the optical member sheet,
The said cut part cuts the part of the succeeding side of the edge of the said mark in the upstream of the conveyance direction of the said optical member sheet | seat, and forms the said defective article optical member as described in any one of Claim 1-5 The production system of the optical display device described.
An optical display device production system in which an optical member is bonded to an optical display component,
While the belt-shaped optical member sheet having a width wider than the length of either one of the long side and the short side of the display area of the optical display component is unwound from the original roll, the optical member sheet is removed from the display area. After cutting with a length longer than the length of either the other of the long side and the short side into a sheet piece, a bonding apparatus that bonds the sheet piece to the optical display component,
A cutting device that cuts off an excess portion disposed outside the portion facing the display area from the sheet piece bonded to the optical display component, and forms the optical member having a size corresponding to the display area; Including
The bonding device is
An unwinding section for unwinding the optical member sheet together with a separator sheet from the raw roll,
A determination unit that determines whether the optical member sheet unwound by the unwinding unit includes a defect; and
Based on the determination result of the determination unit, the optical member sheet is cut leaving the separator sheet, and a non-defective sheet piece that does not include the defect or a defective sheet piece that includes the defect,
A peeling part for peeling the non-defective sheet piece or the defective sheet piece from the separator sheet;
A suction stage having a suction surface for sucking and holding the optical display component;
A collection stage that is disposed at a position that does not overlap the suction stage as seen from the normal direction of the suction surface, and that collects the defective sheet pieces;
Bonding to hold the non-defective sheet piece peeled from the separator sheet and bond to the optical display component, and to hold the defective sheet piece peeled from the separator sheet and bond to the recovery stage And
A moving device that moves the bonding part between the peeling part and the optical display component, or between the peeling part and the recovery stage;
An optical display device production system comprising:
An optical display device production system in which an optical member is bonded to an optical display component,
While the belt-shaped optical member sheet having a width wider than the length of either one of the long side and the short side of the display area of the optical display component is unwound from the original roll, the optical member sheet is removed from the display area. After cutting with a length longer than the length of either the other of the long side and the short side into a sheet piece, a bonding apparatus that bonds the sheet piece to the optical display component,
A detection device for detecting an outer peripheral edge of a bonding surface of the optical display component and the sheet piece on which the sheet piece is bonded;
A cutting device that cuts off an excess portion disposed outside a 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. And including
The bonding device is
An unwinding section for unwinding the optical member sheet together with a separator sheet from the raw roll,
A determination unit that determines whether the optical member sheet unwound by the unwinding unit includes a defect; and
Based on the determination result of the determination unit, the optical member sheet is cut leaving the separator sheet, and a non-defective sheet piece that does not include the defect or a defective sheet piece that includes the defect,
A peeling part for peeling the non-defective sheet piece or the defective sheet piece from the separator sheet;
A suction stage having a suction surface for sucking and holding the optical display component;
A collection stage that is disposed at a position that does not overlap the suction stage as seen from the normal direction of the suction surface, and that collects the defective sheet pieces;
Bonding to hold the non-defective sheet piece peeled from the separator sheet and bond to the optical display component, and to hold the defective sheet piece peeled from the separator sheet and bond to the recovery stage And
A moving device that moves the bonding part between the peeling part and the optical display component, or between the peeling part and the recovery stage;
Including
The said cutting device cuts the said sheet piece along the outer periphery of the said bonding surface of the said optical display component and the said sheet piece which the said detection apparatus detected, The production system of the optical display device characterized by the above-mentioned.