WO2013077384A1

WO2013077384A1 - Production system and production method for optical display device

Info

Publication number: WO2013077384A1
Application number: PCT/JP2012/080242
Authority: WO
Inventors: 幹士藤井; 達也土岡
Original assignee: 住友化学株式会社
Priority date: 2011-11-21
Filing date: 2012-11-21
Publication date: 2013-05-30
Also published as: CN103890827A; KR20140093664A; TW201326922A; KR101896141B1; JP5328970B2; TWI563295B; CN103890827B; JP2013130866A

Abstract

This production system for an optical display device which is formed by affixing an optical member to an optical display component comprises the following: an affixing device that, while unwinding, with respect to a plurality of optical display components conveyed on a line, a band-shaped optical member sheet having a width greater than that of the display region of the optical display components from an original material roll in the component width direction that is orthogonal to the conveyance direction of the optical display components, thus affixing the plurality of optical display components to the optical member sheet and forming an affixed sheet; and a cutting device that cuts and separates an opposing portion of the optical member sheet that opposes the display region from the surplus portion positioned outside of the opposing portion, and cuts out from the optical member sheet optical members having a size which corresponds to the display region, thereby cutting from the affixed sheet an optical member affixed body that includes a single optical display component and the optical member overlapping that optical display component.

Description

Optical display device production system and production method

The present invention relates to a production system and production method for an optical display device such as a liquid crystal display.
This application claims priority based on Japanese Patent Application No. 2011-253895 filed on November 21, 2011 and Japanese Patent Application No. 2011-253886 filed on November 21, 2011, the contents of which are incorporated herein by reference. To do.

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, it is bonded to a liquid crystal panel (for example, see Patent Document 1).

Japanese Unexamined Patent Publication No. 2003-255132

However, in the conventional configuration described above, a sheet piece slightly larger than the display area is cut out in consideration of variation in dimensions of the liquid crystal panel and the sheet piece, and bonding variation (positional deviation) of the sheet piece to the liquid crystal panel. . Therefore, there is a problem that an extra area (frame part) is formed around the display area, and downsizing of the device is hindered.

In addition, before the optical member is bonded to the liquid crystal panel, dust is prevented from adhering to the liquid crystal panel by removing static electricity from the liquid crystal panel, but the bonding surface of the optical member bonded to the liquid crystal panel is Since it has adhesiveness, there is a problem that dust easily adheres and contributes to poor bonding.

The present invention has been made in view of the above circumstances, and reduces the frame portion around the display area to enlarge the display area and downsize the device, and suppresses dust from adhering to the bonding surface of the optical member. An optical display device production system and production method are provided.

In order to solve the above problems, the present invention has the following aspects.
The production system for an optical display device according to the first aspect of the present invention is a production system for an optical display device in which an optical member is bonded to an optical display component, and includes a plurality of the optical display components conveyed on a line. On the other hand, while the belt-shaped optical member sheet having a width larger than the width of the display area of the optical display component in the component width direction orthogonal to the conveying direction of the optical display component is unwound from the original roll, the optical member sheet A bonding apparatus that forms a bonding sheet by bonding a plurality of the optical display components together, a facing portion of the optical member sheet facing the display area, and a surplus portion positioned outside the facing portion are separated. By cutting out the optical member having a size corresponding to the display area from the optical member sheet, a single optical display component and the optical display from the bonding sheet And a cutting device for cutting an optical member bonded body comprising the optical member overlapping the goods.
The “opposing part” in the above configuration is an area having a size not less than the size of the display area and not more than the size of the outer shape of the optical display component, and avoids a functional part such as an electrical component mounting portion. Indicates the area. That is, the said structure includes the case where the surplus part is laser-cut along the outer periphery of an optical display component.

The optical display device production system according to the first aspect includes a control device that determines a relative bonding position between the optical display component and the optical member sheet based on inspection data in the optical axis direction of the optical member sheet; It is preferable to include an alignment device that aligns the optical display component with respect to the optical member sheet based on the relative bonding position determined by the control device.

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 optical display device is transported on a plurality of optical display components. On the other hand, while unwinding the belt-shaped first optical member sheet having a width larger than the width of the display area of the optical display component in the component width direction orthogonal to the transport direction of the optical display component, From the first bonding sheet that forms the first bonding sheet by bonding the first surfaces of the plurality of optical display components to the first optical member sheet, the single optical display A first cutting device that cuts out a first optical member bonded body that includes a component and a sheet piece of the first optical member sheet that overlaps the optical display component and is larger than the display area; first A plurality of belt-like second optical member sheets having a width larger than the width of the display area in the component width direction are unwound from the second raw fabric roll with respect to the academic member bonded body. Of the first optical member bonding body of the first optical member bonding body, the second bonding apparatus forming a second bonding sheet by bonding the surfaces of the first optical member bonding body of the first optical member bonding body. Separating the facing portion of the sheet piece, the facing portion of the second optical member sheet of the second bonding sheet facing the display area, and the surplus portion located outside both facing portions, the optical display On the first surface of the component, the first optical member made of the first optical member sheet and the second optical member made of the second optical member sheet are used as the optical member having a size corresponding to the display area. Forming , And a second cutting device for cutting the second optical member bonded body including the first and second optical member overlap from the second bonding sheet to a single of the optical display component, and the optical display components.

The production system of the optical display device according to the second aspect is a strip-shaped first having a width larger than the width of the display region in the component width direction with respect to the plurality of second optical member bonded bodies conveyed on the line. While the three optical member sheets are unwound from the third original fabric roll, the surfaces of the plurality of second optical member bonded bodies opposite to the first and second optical members are bonded to the third optical member sheet. A third bonding device for forming a third bonding sheet, and a third optical member sheet facing the display area in the third bonding sheet, and a surplus portion located outside the facing portion. And forming a third optical member as one of the optical members having a size corresponding to the display area on the second surface opposite to the first surface of the optical display component, Single from the third bonding sheet The optical display component and said first overlapping optical display component, it is preferable to provide a third cutting device for cutting the third optical member bonded body including a second and third optical members.

The method for producing an optical display device according to the third aspect of the present invention is a method for producing an optical display device in which an optical member is bonded to an optical display component, and a plurality of the optical display components conveyed on a line. On the other hand, while the belt-shaped optical member sheet having a width larger than the width of the display area of the optical display component in the component width direction orthogonal to the conveying direction of the optical display component is unwound from the original roll, the optical member sheet A plurality of the optical display components are bonded together to form a bonding sheet, and a facing portion of the optical member sheet facing the display area is separated from a surplus portion located outside the facing portion, and the optical member By cutting out the optical member having a size corresponding to the display area from the sheet, the light overlapping the single optical display component and the optical display component from the bonding sheet Cutting an optical member bonded body comprising a member.

An optical display device production system according to a fourth 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 optical display device is transported on a plurality of optical display components. On the other hand, while the belt-shaped optical member sheet having a width larger than the width of the display area of the optical display component in the component width direction orthogonal to the conveying direction of the optical display component is unwound from the original roll, the optical member sheet A bonding apparatus that forms a bonding sheet by bonding a plurality of the optical display components together, a facing portion of the optical member sheet facing the display area, and a surplus portion positioned outside the facing portion are separated. By cutting out the optical member having a size corresponding to the display area from the optical member sheet, a single optical display component and the optical table from the bonding sheet A cutting device that cuts out the optical member bonded body including the optical member that overlaps the component, and a bonding surface of the optical member sheet and the optical display component at a bonding position between the optical member sheet and the optical display component. The said bonding apparatus conveys the said optical member sheet | seat so that may face downward.

An optical display device production system according to a fifth 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 plurality of optical display components conveyed on a line. On the other hand, while unwinding the belt-shaped first optical member sheet having a width larger than the width of the display area of the optical display component in the component width direction orthogonal to the transport direction of the optical display component, From the first bonding sheet that forms the first bonding sheet by bonding the first surfaces of the plurality of optical display components to the first optical member sheet, the single optical display A first cutting device that cuts out a first optical member bonded body that includes a component and a sheet piece of the first optical member sheet that overlaps the optical display component and is larger than the display area; first A plurality of belt-like second optical member sheets having a width larger than the width of the display area in the component width direction are unwound from the second raw fabric roll with respect to the academic member bonded body. Of the first optical member bonding body of the first optical member bonding body, the second bonding apparatus forming a second bonding sheet by bonding the surfaces of the first optical member bonding body of the first optical member bonding body. Separating the facing portion of the sheet piece, the facing portion of the second optical member sheet of the second bonding sheet facing the display area, and the surplus portion located outside both facing portions, the optical display On the first surface of the component, the first optical member made of the first optical member sheet and the second optical member made of the second optical member sheet are used as the optical member having a size corresponding to the display area. Forming A second cutting device that cuts out the second optical member bonding body including the first and second optical members overlapping the single optical display component and the optical display component from the second bonding sheet, In the bonding position of the one optical member sheet and the optical display component, the first bonding apparatus is configured so that the bonding surface of the first optical member sheet and the optical display component faces downward. A member sheet is conveyed, and the bonding surface of the second optical member sheet with the first optical member bonding body faces downward at the bonding position between the second optical member sheet and the first optical member bonding body. Thus, said 2nd bonding apparatus conveys said 2nd optical member sheet | seat.

The production system of the optical display device according to the fifth aspect is a strip-shaped first having a width larger than the width of the display region in the component width direction with respect to the plurality of second optical member bonded bodies conveyed on the line. While the three optical member sheets are unwound from the third original fabric roll, the surfaces of the plurality of second optical member bonded bodies opposite to the first and second optical members are bonded to the third optical member sheet. A third bonding device for forming a third bonding sheet, and a third optical member sheet facing the display area in the third bonding sheet, and a surplus portion located outside the facing portion. And forming a third optical member as one of the optical members having a size corresponding to the display area on the second surface opposite to the first surface of the optical display component, Single from the third bonding sheet A third cutting device that cuts out the third optical member bonded body including the optical display component and the first, second, and third optical members that overlap the optical display component, and the third optical member sheet and the second optical member. At the bonding position with the optical member bonding body, the third bonding member is the third optical member sheet so that the bonding surface of the third optical member sheet with the second optical member bonding body faces downward. Is preferably conveyed.

It is preferable that the production system of the optical display device according to the fifth aspect includes a reversing device that reverses the front surface and the back surface of the second optical member bonding body conveyed on the line.

The optical display device production method according to the sixth aspect of the present invention is an optical display device production method in which an optical member is bonded to an optical display component, wherein the optical display device is conveyed on a line. On the other hand, while the belt-shaped optical member sheet having a width larger than the width of the display area of the optical display component in the component width direction orthogonal to the conveying direction of the optical display component is unwound from the original roll, the optical member sheet A plurality of the optical display components are bonded together to form a bonding sheet, and a facing portion of the optical member sheet facing the display area is separated from a surplus portion located outside the facing portion, and the optical member By cutting out the optical member having a size corresponding to the display area from the sheet, the light overlapping the single optical display component and the optical display component from the bonding sheet The optical member bonded body including a member is cut out, and at the bonding position between the optical member sheet and the optical display component, the optical member so that the bonding surface of the optical member sheet with the optical display component faces downward. Transport the sheet.

According to the present invention, even when the optical axis direction changes according to the position of the optical member sheet, the optical display component is bonded to the optical member sheet having a width larger than the width of the display region. The optical display component can be aligned and bonded in accordance with the axial direction. Thereby, the precision of the optical axis direction of the optical member with respect to the optical display component can be improved, and the color and contrast of the optical display device can be increased.
Moreover, after bonding an optical display component to an optical member sheet larger than the display region, an optical member having a size corresponding to the display region is formed on the surface of the optical display component by cutting off an excess portion of the optical member sheet. be able to. As a result, the optical member can be accurately provided up to the display area, and the frame area outside the display area can be narrowed to enlarge the display area and downsize the device.

According to the present invention, even when the optical axis direction changes according to the position of the optical member sheet, the optical display component is bonded to the optical member sheet having a width larger than the width of the display region. The optical display component can be aligned and bonded in accordance with the axial direction. Thereby, the precision of the optical axis direction of the optical member with respect to the optical display component can be improved, and the color and contrast of the optical display device can be increased.
Moreover, after bonding an optical display component to an optical member sheet larger than the display region, an optical member having a size corresponding to the display region is formed on the surface of the optical display component by cutting off an excess portion of the optical member sheet. be able to. As a result, the optical member can be accurately provided up to the display area, and the frame area outside the display area can be narrowed to enlarge the display area and downsize the device.
And each optical member sheet | seat is conveyed so that the bonding surface by the side of the adhesion layer may face downward in the bonding position of an optical display component and an optical member sheet | seat, The damage | wound of the bonding surface of each optical member sheet | seat Adhesion, adhesion of foreign matter, and the like are suppressed, and occurrence of poor bonding can be suppressed.

It is a schematic block diagram of the film bonding system of the optical display device in 1st embodiment of this invention. It is a perspective view of the 2nd bonding apparatus periphery of the said film bonding system in 1st embodiment of this invention. It is a perspective view which shows the optical axis direction of the optical member sheet | seat of the said film bonding system in 1st embodiment of this invention, and the optical display component bonded by an optical member sheet | seat. It is sectional drawing of the 1st bonding sheet | seat in the said film bonding system in 1st embodiment of this invention. It is sectional drawing of the 2nd bonding sheet | seat in the 2nd cutting device of the said film bonding system in 1st embodiment of this invention. It is a top view of the 3rd bonding sheet | seat in the 3rd cutting device of the said film bonding system in 1st embodiment of this invention. FIG. 7 is a cross-sectional view taken along the line AA in FIG. 6. It is sectional drawing of the double-sided bonding panel which passed through the said film bonding system in 1st embodiment of this invention. It is sectional drawing which shows the cutting end by the laser of the optical member sheet | seat bonded to the liquid crystal panel in 1st embodiment of this invention. It is sectional drawing which shows the cutting end by the laser of the optical member sheet simple substance in 1st embodiment of this invention. It is a schematic block diagram which shows the modification of the 1st bonding apparatus periphery of the said film bonding system in 1st embodiment of this invention. It is a schematic block diagram which shows the modification of the 3rd bonding apparatus periphery of the said film bonding system in 1st embodiment of this invention. It is a schematic block diagram of the film bonding system of the optical display device in 2nd embodiment of this invention. It is a perspective view of the 2nd bonding apparatus periphery of the said film bonding system in 2nd embodiment of this invention. It is a perspective view which shows the optical axis direction of the optical member sheet | seat of the said film bonding system in 2nd embodiment of this invention, and the optical display component bonded by an optical member sheet | seat. It is a schematic block diagram which shows the modification of the 1st bonding apparatus periphery of the said film bonding system in 2nd embodiment of this invention.

(First embodiment)
Hereinafter, a first embodiment 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.
In particular, as specifically described below, in the film laminating system of the first embodiment, the

laminating devices

12, 15, 18 and the

cutting devices

16, 19 are arranged under the roller conveyor 5 (line) and are cut. A device 13 is arranged on the roller conveyor 5.

FIG. 1 shows a schematic configuration of the film bonding system 1 of the present embodiment. The film bonding system 1 bonds a film-shaped optical member such as a polarizing film, a retardation film, and a brightness enhancement film to a panel-shaped optical display component such as a liquid crystal panel or an organic EL panel. The film bonding system 1 manufactures an optical member bonding body including the optical display component and the optical member. In the film bonding system 1, a liquid crystal panel P is used as the optical display component. Each part of the film bonding system 1 is comprehensively controlled by a control device 20 as an electronic control device.

The film bonding system 1 sequentially performs a predetermined process on the liquid crystal panel P while transporting the liquid crystal panel P from the start position to the end position of the bonding process using, for example, a driving roller conveyor 5. The liquid crystal panel P is conveyed on the roller conveyor 5 with its front and back surfaces being horizontal.
In the drawing, the left side indicates the upstream side in the transport direction of the liquid crystal panel P (hereinafter referred to as the panel transport upstream side), and the right side in the diagram indicates the downstream side in the transport direction of the liquid crystal panel P (hereinafter referred to as the panel transport downstream side).

6 to 8 together, the liquid crystal panel P has a rectangular shape in plan view, and a display region P4 having an outer shape along the outer peripheral edge is formed inside the outer peripheral edge by a predetermined width. The liquid crystal panel P is transported in a direction in which the short side of the display region P4 is substantially along the transport direction on the upstream side of the panel transport with respect to the second alignment device 14 described later, and the panel transport downstream of the second alignment device 14. On the side, the display area P4 is transported in a direction substantially along the transport direction.

First, second, and third optical members F11, F12, and F13 cut out from the long, strip-like first, second, and third optical member sheets F1, F2, and F3 with respect to the front and back surfaces of the liquid crystal panel P are provided. Bonded appropriately. In the present embodiment, the first optical member F11 (optical member) and the third optical member F13 (optical member) 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 of the liquid crystal panel P on the backlight side, a second optical member F12 (optical member) as a brightness enhancement film is further bonded to the first optical member F11.

As shown in FIG. 1, the film bonding system 1 includes a first alignment device 11 that transports the liquid crystal panel P from the upstream process to the panel transport upstream side of the roller conveyor 5 and aligns the liquid crystal panel P. The 1st bonding apparatus 12 provided in the panel conveyance downstream rather than the alignment apparatus 11, the 1st cutting apparatus 13 provided in proximity to the 1st bonding apparatus 12, the 1st bonding apparatus 12, and the 1st cutting apparatus 13 and a second alignment device 14 provided on the downstream side of the panel conveyance.

Moreover, the film bonding system 1 is the 2nd bonding apparatus 15 provided in the panel conveyance downstream rather than the 2nd alignment apparatus 14, The 2nd cutting apparatus 16 provided in proximity to the 2nd bonding apparatus 15, A third alignment device 17 provided on the downstream side of the panel conveyance from the second bonding device 15 and the second cutting device 16, a third bonding device 18 provided on the downstream side of the panel conveyance from the third alignment device 17, and And a third cutting device 19 provided in the vicinity of the third bonding device 18.

The first alignment device 11 has a pair of cameras C that hold the liquid crystal panel P and transport it freely in the vertical and horizontal directions, and image the upstream and downstream ends of the liquid crystal panel P, for example. (See FIG. 3). The imaging data of the camera C is sent to the control device 20. The control device 20 activates the first alignment device 11 based on the imaging data and inspection data stored in advance in the optical axis direction described later. Note that second and

third alignment devices

14 and 17 described later also have the camera C, and use image data of the camera C for alignment.

The first alignment device 11 is controlled by the control device 20 to perform alignment of the liquid crystal panel P with respect to the first bonding device 12. At this time, the liquid crystal panel P is positioned in a horizontal direction (hereinafter referred to as a component width direction) orthogonal to the transport direction and in a rotation direction around the vertical axis (hereinafter simply referred to as a rotation direction). In this state, the liquid crystal panel P is introduced into the bonding position of the first bonding apparatus 12.

The 1st bonding apparatus 12 is the lower surface (backlight side) of liquid crystal panel P conveyed above with respect to the upper surface of the elongate 1st optical member sheet | seat F1 (optical member sheet | seat) introduced into the bonding position. ). The 1st bonding apparatus 12 conveys the 1st optical member sheet | seat F1 along the longitudinal direction, unwinding the 1st optical member sheet | seat F1 from the 1st original fabric roll R1 which wound the 1st optical member sheet | seat F1. The conveyance apparatus 12a and the pinching roll 12b which bonds the lower surface of liquid crystal panel P which the roller conveyor 5 conveys to the upper surface of the 1st optical member sheet | seat F1 which the conveyance apparatus 12a conveys are provided.

The transport device 12a holds the first original fabric roll R1 around which the first optical member sheet F1 is wound, and rolls out the first optical member sheet F1 along the longitudinal direction thereof, and the first optical member sheet. It has a pf collection part 12d that collects the protection film pf that is fed together with the first optical member sheet F1 on the lower surface of F1 on the downstream side of the panel conveyance of the first bonding apparatus 12.

The pinching roll 12b has a pair of laminating rollers that are arranged with their axial directions parallel to each other. A predetermined gap is formed between the pair of bonding rollers, and the inside of this gap is the bonding position of the first bonding apparatus 12. The liquid crystal panel P and the first optical member sheet F1 are overlapped and introduced into the gap. The liquid crystal panel P and the first optical member sheet F1 are sent out to the downstream side of the panel conveyance while being pressed between the bonding rollers. Thereby, the 1st bonding sheet | seat F21 which bonded together the several liquid crystal panel P continuously on the upper surface of the elongate 1st optical member sheet | seat F1 at predetermined intervals is formed.

4 and 5 together, the first cutting device 13 is located on the panel transport downstream side of the pf collection unit 12d, and cuts the first optical member sheet F1 of the first bonding sheet F21 to display the display area. In order to obtain a sheet piece F1S larger than P4 (in this embodiment, larger than the liquid crystal panel P), a predetermined position (between the liquid crystal panels P arranged in the transport direction) of the first optical member sheet F1 is set to the full width in the component width direction. Cut over. It does not matter whether the first cutting device 13 uses a cutting blade or a laser cutter. By the said cutting | disconnection, the 1st single-sided bonding panel P11 (1st optical member bonding body) by which the said sheet piece F1S larger than the display area P4 was bonded to the lower surface of liquid crystal panel P is formed.

Referring to FIG. 1, the second alignment device 14 holds, for example, the first single-sided bonding panel P <b> 11 on the roller conveyor 5 and rotates it 90 ° around the vertical axis. Thereby, the first single-sided bonding panel P11 that has been transported substantially parallel to the short side of the display region P4 changes direction so as to be transported substantially parallel to the long side of the display region P4. In addition, the said rotation is made | formed when the optical axis direction of the other optical member sheet | seat bonded to liquid crystal panel P is arrange | positioned at right angle with respect to the optical axis direction of the 1st optical member sheet | seat F1.

The second alignment device 14 performs the same alignment as the first alignment device 11. That is, the 2nd alignment apparatus 14 is based on the inspection data of the optical axis direction memorize | stored in the control apparatus 20, and the imaging data of the said camera C, The component width direction of the 1st single-sided bonding panel P11 with respect to the 2nd bonding apparatus 15 And positioning in the rotation direction. In this state, the first single-sided bonding panel P <b> 11 is introduced into the bonding position of the second bonding device 15.

The 2nd bonding apparatus 15 is the lower surface of the 1st single-sided bonding panel P11 conveyed above with respect to the upper surface of the elongate 2nd optical member sheet | seat F2 (optical member sheet | seat) introduced into the bonding position. (The backlight side of the liquid crystal panel P) is bonded. The 2nd bonding apparatus 15 conveys the 2nd optical member sheet | seat F2 along the longitudinal direction, unwinding the 2nd optical member sheet | seat F2 from the 2nd original fabric roll R2 which wound the 2nd optical member sheet | seat F2. The conveyance apparatus 15a and the pinching roll 15b which bonds the lower surface of the 1st single-sided bonding panel P11 which the roller conveyor 5 conveys to the upper surface of the 2nd optical member sheet | seat F2 which the conveyance apparatus 15a conveys are provided.

The transport device 15a includes a roll holding unit 15c that holds the second original roll R2 around which the second optical member sheet F2 is wound, and that feeds the second optical member sheet F2 along its longitudinal direction, and a pressure roll 15b. And a second recovery part 15d for recovering an excess portion of the second optical member sheet F2 that has passed through the second cutting device 16 located on the downstream side of the panel conveyance.

The pinching roll 15b has a pair of laminating rollers arranged with their axial directions parallel to each other. A predetermined gap is formed between the pair of bonding rollers, and the inside of this gap is the bonding position of the second bonding apparatus 15. The first single-sided bonding panel P11 and the second optical member sheet F2 are overlapped and introduced into the gap. These 1st single-sided bonding panels P11 and the 2nd optical member sheet | seat F2 are sent out to a panel conveyance downstream, being pinched between the said bonding rollers. Thereby, the 2nd bonding sheet | seat F22 which bonded together the several 1st single-sided bonding panel P11 continuously on the upper surface of the elongate 2nd optical member sheet | seat F2 is formed.

2 and 5 together, the second cutting device 16 is located on the panel transport downstream side of the pinching roll 15b, and the first single-sided bonding panel P11 bonded to the second optical member sheet F2 and its upper surface. The first optical member sheet F1 and the sheet piece F1S are simultaneously cut. The second cutting device 16 is, for example, a CO ₂ laser cutter, and the second optical member sheet F2 and the sheet piece F1S of the first optical member sheet F1 are arranged along the outer peripheral edge of the display region P4 (in this embodiment, the liquid crystal panel P Along the outer periphery). By cutting the optical member sheets F1 and F2 together after being bonded to the liquid crystal panel P, the accuracy in the optical axis direction of the optical member sheets F1 and F2 is increased, and the opticalness between the optical member sheets F1 and F2 is increased. The axial displacement is eliminated, and the cutting with the first cutting device 13 is simplified.

A second single-sided bonding panel P12 in which the first and second optical members F11 and F12 are overlapped and bonded to the lower surface of the liquid crystal panel P by cutting the second cutting device 16 (optical member bonding body, second optical member bonding). Are formed (see FIG. 7). Moreover, the surplus part of each optical member sheet | seat F1, F2 which the opposing part (each optical member F11, F12) and 2nd single-sided bonding panel P12 and the display area P4 are cut off, and remains in frame shape at this time is isolate | separated. The A plurality of surplus portions of the second optical member sheet F2 are connected in a ladder shape, and the surplus portions are wound around the second collection portion 15d together with the surplus portions of the first optical member sheet F1.
Here, 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 liquid crystal panel P, and functions such as an electrical component mounting portion. Indicates the area that avoids the part. In the present embodiment, the surplus portions are laser-cut along the outer peripheral edge of the liquid crystal panel P on the three sides excluding the functional portion in the rectangular liquid crystal panel P in plan view. In addition, on one side corresponding to the functional portion, the surplus portion is laser-cut at a position where it appropriately enters the display region P4 side from the outer peripheral edge of the liquid crystal panel P.

Referring to FIG. 1, the third alignment device 17 inverts the front and back surfaces of the second single-sided bonding panel P12 with the display surface side of the liquid crystal panel P as the upper surface, and the backlight side of the liquid crystal panel P as the upper surface. In addition, the same alignment as that of the first and

second alignment devices

11 and 14 is performed. That is, the third alignment device 17 is based on the inspection data in the optical axis direction stored in the control device 20 and the imaging data of the camera C, and the component width direction of the second single-sided bonding panel P12 with respect to the third bonding device 18. And positioning in the rotation direction. In this state, the second single-sided bonding panel P <b> 12 is introduced into the bonding position of the third bonding device 18.

The 3rd bonding apparatus 18 is the lower surface of the 2nd single-sided bonding panel P12 conveyed above with respect to the upper surface of the elongate 3rd optical member sheet | seat F3 (optical member sheet | seat) introduced into the bonding position. (The display surface side of the liquid crystal panel P) is bonded. The 3rd bonding apparatus 18 conveys the 3rd optical member sheet | seat F3 along the longitudinal direction, unwinding the 3rd optical member sheet | seat F3 from the 3rd original fabric roll R3 which wound the 3rd optical member sheet | seat F3. The conveying apparatus 18a and the pinching roll 18b which bonds the lower surface of the 2nd single-sided bonding panel P12 which the roller conveyor 5 conveys to the upper surface of the 3rd optical member sheet | seat F3 which the conveying apparatus 18a conveys are provided.

The transport device 18a includes a roll holding unit 18c that holds the third original roll R3 around which the third optical member sheet F3 is wound, and that feeds the third optical member sheet F3 along its longitudinal direction, and a pressure roll 18b. And a third recovery part 18d that recovers an excess portion of the third optical member sheet F3 that has passed through the third cutting device 19 located on the downstream side of the panel conveyance.

The pinching roll 18b has a pair of laminating rollers arranged in parallel with each other in the axial direction. A predetermined gap is formed between the pair of bonding rollers, and the gap is the bonding position of the third bonding device 18. In the gap, the second single-sided bonding panel P12 and the third optical member sheet F3 are overlapped and introduced. These 2nd single-sided bonding panels P12 and the 3rd optical member sheet | seat F3 are sent out to a panel conveyance downstream, being pinched between the said bonding rollers. Thereby, the 3rd bonding sheet | seat F23 which bonded the several 2nd single-sided bonding panel P12 continuously on the upper surface of the elongate 3rd optical member sheet | seat F3 is formed.

3rd cutting device 19 is located in the panel conveyance downstream rather than pinching roll 18b, and cuts 3rd optical member sheet | seat F3. The third cutting device 19 is a laser processing machine similar to the second cutting device 16, and the third optical member sheet F3 is endless along the outer peripheral edge of the display region P4 (for example, along the outer peripheral edge of the liquid crystal panel P). Disconnect.

By the cutting | disconnection of the 3rd cutting device 19, the double-sided bonding panel P13 (the optical member bonding body, the 2nd optical member bonding body) by which the 3rd optical member F13 was bonded to the lower surface of the 2nd single-sided bonding panel P12 is formed. (See FIG. 8). Moreover, at this time, the opposing part (3rd optical member F13) of double-sided bonding panel P13 and the display area P4 is cut off, and the excess part of the 3rd optical member sheet | seat F3 which remains in frame shape is isolate | separated. A plurality of surplus portions of the third optical member sheet F3 are connected to form a ladder like the surplus portions of the second optical member sheet F2 (see FIG. 2), and the surplus portions are wound around the third recovery portion 18d.

The double-sided bonding panel P13 is inspected for defects (bonding failure, etc.) through a defect inspection device (not shown) and then conveyed to the downstream process for other processing.

Here, in general, a long optical film (corresponding to each optical member sheet F1, F2, F3) is manufactured by uniaxially stretching a resin film dyed with a dichroic dye, and the direction of the optical axis of the optical film Generally coincides with the stretching direction of the resin film. However, the optical axis of the optical film is not uniform throughout the optical film, but varies slightly in the width direction of the optical film.

For this reason, when a plurality of optical display components are bonded to the optical film in the width direction, it is desirable to align the optical display components in accordance with the optical axis direction of the optical film. This is effective in that the variation in the optical axis of each optical display device is suppressed and the color and contrast are enhanced.

An optical film as a polarizing film is dyed with, for example, iodine or a dichroic dye in order to block light other than light that vibrates in one direction. In addition, a peeling film and a protective film may be further laminated | stacked on the optical film.

The inspection device for inspecting the optical axis direction of the optical film is disposed at a position near the other surface of the front and back surfaces of the optical film, and a light source disposed at a position near one of the front and back surfaces of the optical film. And an analyzer disposed on the opposite side of the light source. The analyzer receives the light irradiated from the light source and transmitted through the optical film, and detects the optical axis of the optical film by detecting the intensity of this light. The analyzer can be moved in the width direction of the optical film, for example, and the optical axis can be inspected at an arbitrary position in the width direction of the optical film (a position selected according to use conditions).

In the case of this embodiment, the inspection data in the optical axis direction of each optical member sheet F1, F2, F3 obtained by the inspection apparatus is associated with the longitudinal direction position and the width direction position of each optical member sheet F1, F2, F3. And stored in the memory of the control device 20. After this inspection, the optical member sheets F1, F2, and F3 are wound up to form the original rolls R1, R2, and R3, respectively. Hereinafter, the optical member sheets F1, F2, and F3 are collectively referred to as the optical member sheet FX, the liquid crystal panel P that is bonded to the optical member sheets F1, F2, and F3, and the single-sided bonding panels P11 and P12 are collectively referred to as the optical display member PX. There are things to do.

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. Due to uneven coloring of the dye, etc., there is a tendency that a difference in the optical axis direction occurs between the inner side in the width direction and the outer side in the width direction of the optical member sheet FX.

Therefore, in the present embodiment, 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 control device 20, the alignment of the optical display component PX to be bonded to these is performed. The optical display component PX is bonded to the optical member sheet FX.

Specifically, for example, the optical axis having the maximum angle and the minimum optical axis with respect to a predetermined reference axis (longitudinal axis or the like) is found in the plane of the portion where the optical display component PX is bonded to the optical member sheet FX. The optical display component PX is aligned on the basis of the axis that bisects the angle formed by these optical axes as an average optical axis of the part.

Accordingly, even when the optical display component PX is bonded to a different position in the width direction of the optical member sheet FX, the variation in the optical axis direction of the optical member sheet FX with respect to the reference position of the optical display component PX can be suppressed. The tolerance can be approximately 0 ° (allowable tolerance is ± 0.25 °).

The optical axis direction may be detected while the optical member sheet FX is unwound, and the optical display component PX may be aligned based on the detected data. The various alignment methods described above are not limited to the case where the optical axis direction of the optical member sheet FX is 0 ° and 90 °, and the optical axis direction is set to an arbitrary angle (an angle corresponding to the purpose of the optical display component). It is also applicable when

FIG. 3 shows an example in which three optical display components PX are aligned and bonded to an optical member sheet FX having a relatively wide width in the width direction. The present invention is not limited to the example shown in FIG. 3, and a configuration in which two or less or four or more optical display components PX are aligned and bonded in the width direction of the optical member sheet FX may be employed, and may be relatively wide. A configuration may be adopted in which a plurality of narrow optical member sheets FX are arranged in the width direction and the optical display component PX is bonded to each of them.

Referring to FIG. 4, the liquid crystal panel P includes a rectangular first substrate P1 made of, for example, a TFT substrate, a second rectangular substrate P2 disposed opposite to the first substrate P1, and a first substrate P1. And a liquid crystal layer P3 sealed between the second substrate P2. For convenience of illustration, hatching of each layer in the cross-sectional view may be omitted.

Referring to FIGS. 6 and 7, the first substrate P1 has three sides of the outer periphery of the first substrate P1 along the corresponding three sides of the second substrate P2, and the remaining one side of the outer periphery is the second substrate. It protrudes outside the corresponding side of P2. As a result, an electrical component attachment portion P5 is provided on the one side of the first substrate P1 so as to project outward from the second substrate P2.

Referring to FIGS. 5 and 7, the second cutting device 16 detects the outer periphery of the display area P4 with a detection unit such as a camera 16a, and the first and second optical elements along the outer periphery of the display area P4. The member sheets F1 and F2 are cut. Further, the third cutting device 19 similarly cuts the third optical member sheet F3 along the outer peripheral edge and the like of the display region P4 while detecting the outer peripheral edge of the display region P4 with a detection unit such as a camera 19a. Outside the display area P4, a frame portion G having a predetermined width for arranging a sealant or the like for joining the first and second substrates P1 and P2 is provided, and the

cutting devices

16 and 19 within the width of the frame portion G are provided. Laser cutting is performed.

As shown in FIG. 10, when the resin-made optical member sheet FX is laser-cut alone, the cut end t of the optical member sheet FX may be swollen or wavy due to thermal deformation. For this reason, when the optical member sheet FX after laser cutting is bonded to the optical display component PX, poor bonding such as air mixing and distortion is likely to occur in the optical member sheet FX.

On the other hand, as shown in FIG. 9, in this embodiment in which the optical member sheet FX is laser-cut after the optical member sheet FX is bonded to the liquid crystal panel P, the cut end t of the optical member sheet FX is the glass surface of the liquid crystal panel P. Is backed up. For this reason, since the swelling of the cut end t of the optical member sheet FX, undulation or the like does not occur, and the optical member sheet FX is bonded to the liquid crystal panel P, the bonding failure cannot occur.

The deflection width (tolerance) of the cutting line of the laser processing machine is smaller than that of the cutting blade. Therefore, in this embodiment, the width of the frame portion G is larger than that in the case of cutting the optical member sheet FX using the cutting blade. The liquid crystal panel P can be reduced in size and / or the display area P4 can be increased in size. Such an optical member sheet is effective for application to a high-function mobile device that requires an enlargement of the display screen while the size of the housing is limited, such as a recent smartphone or tablet terminal.

In addition, when the optical member sheet FX is cut into a sheet piece aligned with the display region P4 of the liquid crystal panel P and then bonded to the liquid crystal panel P, the dimensional tolerances of the sheet piece and the liquid crystal panel P, and their relative bonding Since the positional dimensional tolerances overlap, it is difficult to reduce the width of the frame portion G of the liquid crystal panel P (it is difficult to enlarge the display area).

On the other hand, when the optical member sheet FX is bonded to the liquid crystal panel P and then cut in accordance with the display region P4, only the runout tolerance of the cutting line needs to be considered, and the width tolerance of the frame portion G can be reduced. (± 0.1 mm or less). Also in this respect, the width of the frame part G of the liquid crystal panel P can be reduced (the display area can be enlarged).

Further, by cutting the optical member sheet FX with a laser instead of a blade, the cutting force is not input to the liquid crystal panel P, and it becomes difficult for cracks and chips to occur at the edge of the substrate of the liquid crystal panel P, such as a heat cycle. The durability against is improved. Similarly, since there is no contact with the liquid crystal panel P, there is little damage to the electrical component mounting portion P5.

As shown in FIG. 6, when laser cutting the optical member sheet FX (third optical member sheet F3 in FIG. 6), for example, a laser cut start point pt1 is set on the extension of one long side of the display area P4, and this First, the cutting of the one long side is started from the starting point pt1. The end point pt2 of the laser cut is set at a position where the laser goes around the display area P4 and reaches the extension of the short side on the start point side of the display area P4. The start point pt1 and the end point pt2 are set so as to be able to withstand the tension when the optical member sheet FX is wound, leaving a predetermined connection allowance in the surplus portion of the optical member sheet FX.

As described above, the optical display device production system in the above embodiment is a film bonding system that forms a part of the optical display device production system in which the optical members F11, F12, and F13 are bonded to the liquid crystal panel P. 1, the plurality of liquid crystal panels P transported on the roller conveyor 5 has a strip shape having a width larger than the width of the display region P4 of the liquid crystal panel P in the component width direction orthogonal to the transport direction of the liquid crystal panel P. While unwinding the optical member sheets F1, F2, and F3 from the raw fabric rolls R1, R2, and R3, a plurality of the liquid crystal panels P are bonded to the optical member sheets F1, F2, and F3 to bond sheets F21 and F22. , F23 forming

bonding devices

12, 15, 18 and the opposing portions of the optical member sheets F2, F3 facing the display area P4 and the pair The pasting sheet F22 is appropriately cut out from the optical member sheets F2, F3, and the optical members F11, F12, F13 having a size corresponding to the display area P4 from the optical member sheets F2, F3. , F23, and a single-sided liquid crystal panel P and cutting

devices

16 and 19 for cutting out the single-sided bonded panels P12 and P13 appropriately including the optical members F11, F12, and F13 overlapping the liquid crystal panel P.

More specifically, in the production system for the optical display device, the plurality of liquid crystal panels P conveyed on the roller conveyor 5 are arranged in the component width direction orthogonal to the conveyance direction of the liquid crystal panel P. The first optical member sheet F1 having a width larger than the width of the display region P4 is unwound from the first raw roll R1, and the first surfaces of the plurality of liquid crystal panels P are placed on the first optical member sheet F1. From the 1st bonding sheet | seat 12 which sticks together (one surface among the surface and the back surface) and makes it the 1st bonding sheet | seat F21, and said 1st bonding sheet | seat F21, it overlaps with this single said liquid crystal panel P. And the 1st cutting device 13 which cuts out the 1st single-sided bonding panel P11 containing the sheet piece F1S of said 1st optical member sheet | seat F1 larger than the said display area P4, and the compound conveyed on the roller conveyor 5 are carried out. For the first single-sided bonding panel P11, the belt-shaped second optical member sheet F2 having a width larger than the width of the display region P4 in the component width direction is unwound from the second raw fabric roll R2. 2nd bonding sheet | seat which makes the said 2nd bonding sheet F22 by bonding the sheet | seat F1S side surface (surface in which the sheet piece F1S is located) of several said 1st single-sided bonding panel P11 to said 2nd optical member sheet | seat F2. The second bonding sheet F22 facing the display device P, the facing portion (first facing portion) of the sheet piece F1S of the first single-sided bonding panel P11 facing the display region P4, and the display region P4. The second optical member sheet F2 facing portion (second facing portion) and a surplus portion located outside both facing portions are separated together, and the first surface of the liquid crystal panel P (one of the front surface and the back surface). Side) Thus, 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 in a size corresponding to the display area P4. A second cutting device 16 that cuts out the second single-sided bonding panel P12 including the single liquid crystal panel P and the first and second optical members F11 and F12 overlapping the single liquid crystal panel P from the two-bonding sheet F22.

Moreover, the production system of the optical display device has a strip shape having a width larger than the width of the display region P4 in the component width direction with respect to the plurality of second single-sided bonding panels P12 conveyed on the roller conveyor 5. The first and second optical members F11, F12 of the plurality of second single-sided panels P12 on the third optical member sheet F3 while unwinding the third optical member sheet F3 from the third original fabric roll R3. And the third optical device sheet F3 facing the display area P4 in the third bonding sheet F23, and the third bonding sheet 18 to be bonded to the opposite surface to the third bonding sheet F23. The display area P4 is separated on the second surface of the liquid crystal panel P (the surface opposite to the first surface, the other surface of the front surface and the back surface) by separating the portion and the surplus portion located outside the facing portion. Vs. By forming the third optical member F13 having a size to be used, the first liquid crystal panel P and the first, second and third optical members F1, F2, and F3 overlapping the single liquid crystal panel P from the third bonding sheet F23 are formed. And a third cutting device 19 for cutting out the double-sided bonding panel P13.

According to the above configuration, the liquid crystal panel P is bonded to the optical member sheets F1, F2, and F3 having a width larger than the width of the display region P4, so that the position of the optical member sheets F1, F2, and F3 is changed. Even when the optical axis direction changes, the liquid crystal panel P can be aligned and bonded in accordance with the optical axis direction. Thereby, the precision of the optical axis direction of the optical members F11, F12, and F13 with respect to the liquid crystal panel P can be improved, and the color and contrast of the optical display device can be increased.
Moreover, after bonding liquid crystal panel P to optical member sheet | seat F1, F2, F3 larger than the display area P4, by separating the excess part of the optical member sheet | seat F1, F2, F3, the size corresponding to the display area P4 is obtained. The optical members F11, F12, and F13 can be formed on the surface of the liquid crystal panel P. As a result, the optical members F11, F12, and F13 can be accurately provided up to the display region P4, and the frame portion G outside the display region P4 can be narrowed to enlarge the display area and downsize the device.

Moreover, the production system of the optical display device is based on the inspection data in the optical axis direction of the optical member sheets F1, F2, and F3, and the relative bonding position between the liquid crystal panel P and the optical member sheets F1, F2, and F3. And the

alignment devices

11, 14, and 17 that align the liquid crystal panel P with respect to the optical member sheets F1, F2, and F3 based on the relative bonding positions determined by the control device 20. .

According to this configuration, by bonding the liquid crystal panel P after alignment based on the inspection data in the optical axis direction of the optical member sheets F1, F2, and F3, depending on the position of the optical member sheets F1, F2, and F3, Even when the optical axis direction changes, the liquid crystal panel P can be aligned and bonded in accordance with the optical axis direction. Thereby, the precision of the optical axis direction of the optical members F11, F12, and F13 with respect to the liquid crystal panel P can be improved, and the color and contrast of the optical display device can be increased. Moreover, it can respond also to manufacture of the optical member bonding body which has the optical axis direction arbitrarily set as needed.

Here, the production method of the optical display device in the embodiment described above is that the liquid crystal panel P is in the component width direction orthogonal to the transport direction of the liquid crystal panel P with respect to the plurality of liquid crystal panels P transported on the roller conveyor 5. A plurality of liquid crystals are applied to the optical member sheets F1, F2, and F3 while unrolling the strip-shaped optical member sheets F1, F2, and F3 having a width larger than the width of the display region P4 from the original fabric rolls R1, R2, and R3. The process of bonding the panel P to form the bonding sheets F21, F22, and F23, and the facing portion of the optical member sheets F2 and F3 facing the display area P4 and the surplus portion positioned outside the facing portion are separated. By appropriately cutting out the optical members F11, F12, F13 having a size corresponding to the display area P4 from the optical member sheets F2, F3, And a step of cutting the Kihago sheet F22, from said F23 single the optical member overlapping the liquid crystal panel P and the liquid crystal panel P F11, F12, lamination panel including F13 appropriate P12, P13.

In addition, FIG. 11 shows the modification of the film bonding system 1. FIG. This is particularly different from the configuration of FIG. 1 in that it includes a first bonding device 12 ′ that replaces the first bonding device 12 and a first cutting device 13 ′ that replaces the first cutting device 13. . Other configurations in the modification and configurations that are the same as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

1st bonding apparatus 12 'is equipped with the conveying apparatus 12a' replaced with the said conveying apparatus 12a. Compared to the transport device 12a, the transport device 12a ′ includes the first optical member sheet F1 left in a ladder shape through the first cutting device 13 ′ in addition to the roll holding unit 12c and the pf collection unit 12d. It further has the 1st collection | recovery part 12e which winds up an excessive part.

The first cutting device 13 ′ is positioned on the downstream side of the panel conveyance with respect to the pf collection unit 12d and on the upstream side of the panel conveyance with respect to the first collection unit 12e, and from the first optical member sheet F1 to a sheet piece larger than the display area P4. In order to cut out, the first optical member sheet F1 is cut. The first cutting device 13 'is a laser beam machine similar to the second and

third cutting devices

16 and 19, and cuts the first optical member sheet F1 in an endless manner along a predetermined line outside the display region P4.

The 1st single-sided bonding panel P11 'by which the sheet piece of the 1st optical member sheet | seat F1 larger than the display area P4 was bonded to the lower surface of liquid crystal panel P by cutting | disconnection of 1st cutting device 13' is formed. Moreover, at this time, 1st single-sided bonding panel P11 'and the surplus part of the 1st optical member sheet | seat F1 uncut by the ladder shape are isolate | separated, and the surplus part of the 1st optical member sheet | seat F1 is the 1st collection | recovery part 12e. Rolled up.

FIG. 12 shows another modification of the film bonding system 1. This is particularly different from the configuration of FIG. 1 in that a third alignment device 17 ′ and a third bonding device 18 ′ are substituted for the third alignment device 17 and the third bonding device 18. Other configurations in the modification and configurations that are the same as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

Compared with the third alignment device 17, the third alignment device 17 ′ has a function of inverting the front and back surfaces of the panel and has only the same alignment function as the first and

second alignment devices

11 and 14. Thus, the configuration is relatively simple. That is, the third alignment device 17 ′ is a component of the second single-sided bonding panel P12 for the third bonding device 18 ′ based on the inspection data in the optical axis direction stored in the control device 20 and the imaging data of the camera C. Positioning in the width direction and positioning in the rotation direction are performed. In this state, the second single-sided bonding panel P12 is introduced into the bonding position of the third bonding device 18 '.

Compared with the said 3rd bonding apparatus 18, 3rd bonding apparatus 18 'is the 1st conveyed below the lower surface of the elongate 3rd optical member sheet | seat F3 introduced into the bonding position. The upper surface (the display surface side of the liquid crystal panel P) of the two-sided bonding panel P12 is bonded. 3rd bonding apparatus 18 'has the structure which reversed the position in which the said conveying apparatus 18a and the pinching roll 18b are provided. Thereby, the bonding surface of the 3rd optical member sheet | seat F3 turns downward, and adhesion of foreign materials, such as a damage | wound and dust with respect to this bonding surface, is suppressed.

In addition, this invention is not restricted to the said embodiment and modification, For example, it is also possible to reverse the position where the 1st and

2nd bonding apparatuses

12 and 15 are provided similarly to said 3rd bonding apparatus 18 '. Is possible. Moreover, it is also possible to combine suitably each bonding apparatus which the installation position reversed in this way, said 1st bonding apparatus 12 ', and 1st cutting device 13'. Such a configuration will be described in the following second embodiment.

(Second embodiment)
Hereinafter, a second embodiment 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.
In 2nd embodiment, the same code | symbol is attached | subjected to the same member as 1st embodiment, and the description is abbreviate | omitted or simplified.
In particular, as specifically described below, in the film laminating system according to the second embodiment,

laminating devices

112, 115, 118 and cutting

devices

116, 119 are arranged on the roller conveyor 105, and the cutting device 113 is It is disposed under the roller conveyor 105.

FIG. 13 shows a schematic configuration of the film bonding system 101 of the present embodiment. The film bonding system 101 bonds a film-shaped optical member such as a polarizing film, a retardation film, and a brightness enhancement film to a panel-shaped optical display component such as a liquid crystal panel or an organic EL panel. The film bonding system 101 manufactures an optical member bonding body including the optical display component and the optical member. In the film bonding system 101, the liquid crystal panel P is used as the optical display component. Each part of the film bonding system 101 is comprehensively controlled by a control device 120 as an electronic control device.

The film laminating system 101 sequentially performs a predetermined process on the liquid crystal panel P while conveying the liquid crystal panel P using, for example, a driving roller conveyor 105 from the start position to the end position of the laminating process. The liquid crystal panel P is conveyed on the roller conveyor 105 with the front and back surfaces thereof being horizontal.
In the drawing, the left side indicates the upstream side in the transport direction of the liquid crystal panel P (hereinafter referred to as the panel transport upstream side), and the right side in the diagram indicates the downstream side in the transport direction of the liquid crystal panel P (hereinafter referred to as the panel transport downstream side).

The liquid crystal panel used in the second embodiment is the same as the liquid crystal panel P of the first embodiment described above (see FIGS. 6 to 8).
The liquid crystal panel P is transported in a direction in which the short side of the display area P4 is substantially along the transport direction on the upstream side of the panel transport with respect to the second alignment device 114 described later, and the panel transport downstream of the second alignment device 114. On the side, the display area P4 is transported in a direction substantially along the transport direction.
Moreover, 1st, 2nd and 3rd optical member F11, F12, F13 is bonded by liquid crystal panel P similarly to 1st embodiment.

As shown in FIG. 13, the film bonding system 101 includes a first alignment device 111 that transports the liquid crystal panel P from the upstream process to the panel transport upstream side of the roller conveyor 105 and aligns the liquid crystal panel P. The 1st bonding apparatus 112 provided in the panel conveyance downstream rather than the alignment apparatus 111, the 1st cutting apparatus 113 provided in proximity to the 1st bonding apparatus 112, the 1st bonding apparatus 112, and the 1st cutting apparatus 2nd alignment apparatus 114 provided in the panel conveyance downstream rather than 113 is provided.

Moreover, the film bonding system 101 is the 2nd bonding apparatus 115 provided in the panel conveyance downstream rather than the 2nd alignment apparatus 114, the 2nd cutting apparatus 116 provided adjacent to the 2nd bonding apparatus 115, A third alignment device 117 provided on the downstream side of the panel conveyance from the second bonding device 115 and the second cutting device 116; a third bonding device 118 provided on the downstream side of the panel conveyance from the third alignment device 117; And a third cutting device 119 provided close to the third bonding device 118.

The first alignment device 111 has a pair of cameras C that hold the liquid crystal panel P and transport it freely in the vertical direction and the horizontal direction, and image the upstream and downstream ends of the liquid crystal panel P, for example. (See FIG. 15). The imaging data of the camera C is sent to the control device 120. The control device 120 operates the first alignment device 111 based on the imaging data and inspection data stored in the optical axis direction, which will be described later. Note that second and

third alignment devices

114 and 117, which will be described later, similarly have the camera C, and use image data of the camera C for alignment.

The first alignment device 111 is controlled by the control device 120 and performs alignment of the liquid crystal panel P with respect to the first bonding device 112. At this time, the liquid crystal panel P is positioned in a horizontal direction (hereinafter referred to as a component width direction) orthogonal to the transport direction and in a rotation direction around the vertical axis (hereinafter simply referred to as a rotation direction). In this state, the liquid crystal panel P is introduced into the bonding position of the first bonding apparatus 112.

The 1st bonding apparatus 112 bonds the upper surface (backlight side) of liquid crystal panel P conveyed below the lower surface of the elongate 1st optical member sheet | seat F1 introduce | transduced into the bonding position. . The 1st bonding apparatus 112 conveys the 1st optical member sheet | seat F1 along the longitudinal direction, unwinding the 1st optical member sheet | seat F1 from the 1st original fabric roll R1 which wound the 1st optical member sheet | seat F1. The conveyance apparatus 112a and the pinching roll 112b which bonds the upper surface of liquid crystal panel P which the roller conveyor 105 conveys to the lower surface of the 1st optical member sheet | seat F1 which the conveyance apparatus 112a conveys are provided.

The transport device 112a holds the first original roll R1 around which the first optical member sheet F1 is wound, and rolls out the first optical member sheet F1 along the longitudinal direction thereof, and the first optical member sheet. It has a pf collection part 112d that collects the protection film pf that is fed together with the first optical member sheet F1 on the upper surface of F1 on the downstream side of the panel transfer of the first bonding apparatus 112. The conveyance apparatus 112a is a bonding position in the first bonding apparatus 112, and the conveyance path of the first optical member sheet F1 is such that the bonding surface of the first optical member sheet F1 bonded to the liquid crystal panel P faces downward. Set.

The pinching roll 112b has a pair of laminating rollers arranged in parallel with each other in the axial direction. A predetermined gap is formed between the pair of bonding rollers, and the gap is the bonding position of the first bonding apparatus 112. The liquid crystal panel P and the first optical member sheet F1 are overlapped and introduced into the gap. The liquid crystal panel P and the first optical member sheet F1 are sent out to the downstream side of the panel conveyance while being pressed between the bonding rollers. Thereby, the 1st bonding sheet | seat F21 which bonded together the liquid crystal panel P on the lower surface of the elongate 1st optical member sheet | seat F1 at predetermined intervals is formed.

4 and 5 together, the first cutting device 113 is located on the panel transport downstream side of the pf collection unit 112d and cuts the first optical member sheet F1 of the first bonding sheet F21 to display the display area. In order to obtain a sheet piece F1S larger than P4 (in this embodiment, larger than the liquid crystal panel P), a predetermined position (between the liquid crystal panels P arranged in the transport direction) of the first optical member sheet F1 is set to the full width in the component width direction. Cut over. It does not matter whether the first cutting device 113 uses a cutting blade or a laser cutter. By the said cutting | disconnection, the 1st single-sided bonding panel P11 by which the said sheet piece F1S larger than the display area P4 was bonded on the upper surface of liquid crystal panel P is formed.

Referring to FIG. 13, for example, the second alignment device 114 holds the first single-sided bonding panel P11 on the roller conveyor 105 and rotates it by 90 ° around the vertical axis. Thereby, the first single-sided bonding panel P11 that has been transported substantially parallel to the short side of the display region P4 changes direction so as to be transported substantially parallel to the long side of the display region P4. In addition, the said rotation is made | formed when the optical axis direction of the other optical member sheet | seat bonded to liquid crystal panel P is arrange | positioned at right angle with respect to the optical axis direction of the 1st optical member sheet | seat F1.

The second alignment device 114 performs the same alignment as the first alignment device 111. That is, the second alignment device 114 is based on the inspection data in the optical axis direction stored in the control device 120 and the imaging data of the camera C, and the component width direction of the first single-sided bonding panel P11 with respect to the second bonding device 115. And positioning in the rotation direction. In this state, the first single-sided bonding panel P11 is introduced into the bonding position of the second bonding device 115.

The 2nd bonding apparatus 115 is the upper surface (of liquid crystal panel P of the 1st single-sided bonding panel P11 conveyed below the lower surface of the elongate 2nd optical member sheet | seat F2 introduce | transduced into the bonding position. Paste the backlight side. The 2nd bonding apparatus 115 conveys the 2nd optical member sheet | seat F2 along the longitudinal direction, unwinding the 2nd optical member sheet | seat F2 from the 2nd original fabric roll R2 which wound the 2nd optical member sheet | seat F2. The conveyance apparatus 115a and the pinching roll 115b which bonds the upper surface of the 1st single-sided bonding panel P11 which the roller conveyor 105 conveys to the lower surface of the 2nd optical member sheet | seat F2 which the conveyance apparatus 115a conveys are provided.

The conveying device 115a includes a roll holding unit 115c that holds the second original roll R2 around which the second optical member sheet F2 is wound and that feeds the second optical member sheet F2 along its longitudinal direction, and a pinching roll 115b. And a second recovery unit 115d that recovers an excess portion of the second optical member sheet F2 that has passed through the second cutting device 116 located on the downstream side of the panel conveyance. The conveying device 115a is a bonding position in the second bonding device 115, and the second optical member sheet so that the bonding surface of the second optical member sheet F2 bonded to the first single-sided bonding panel P11 faces downward. The conveyance path of F2 is set.

The pinching roll 115b has a pair of laminating rollers arranged in parallel with each other in the axial direction. A predetermined gap is formed between the pair of bonding rollers, and the gap is the bonding position of the second bonding apparatus 115. The first single-sided bonding panel P11 and the second optical member sheet F2 are overlapped and introduced into the gap. These 1st single-sided bonding panels P11 and the 2nd optical member sheet | seat F2 are sent out to a panel conveyance downstream, being pinched between the said bonding rollers. Thereby, the 2nd bonding sheet | seat F22 which bonded the several 1st single-sided bonding panel P11 continuously on the lower surface of the elongate 2nd optical member sheet | seat F2 is formed, keeping predetermined space | interval.

14 and 5 together, the second cutting device 116 is located on the downstream side of the panel conveyance with respect to the pinching roll 115b, and is bonded to the second optical member sheet F2 and its lower surface. The sheet piece F1S of the first optical member sheet F1 of P11 is cut simultaneously. The second cutting device 116 has the same configuration as the second cutting device 16 of the first embodiment. By using the second cutting device 116, the accuracy in the optical axis direction of each of the optical member sheets F1 and F2 is increased, the displacement in the optical axis direction between the optical member sheets F1 and F2 is eliminated, and the first cutting device 113 is used. The cutting at is simplified.

By the cutting | disconnection of the 2nd cutting device 116, the 2nd single-sided bonding panel P12 by which the 1st and 2nd optical members F11 and F12 were accumulated and bonded on the upper surface of liquid crystal panel P is formed (refer FIG. 7). Moreover, the surplus part of each optical member sheet | seat F1, F2 which the opposing part (each optical member F11, F12) and 2nd single-sided bonding panel P12 and the display area P4 are cut off, and remains in frame shape at this time is isolate | separated. The A plurality of surplus portions of the second optical member sheet F2 are connected in a ladder shape (see FIG. 14), and the surplus portions are wound around the second collection portion 115d together with the surplus portions of the first optical member sheet F1.

Referring to FIG. 13, the third alignment device 117 reverses the surface and the back surface of the second single-sided bonding panel P12 with the backlight side of the liquid crystal panel P as the upper surface, and the display surface side of the liquid crystal panel P as the upper surface. In addition, the same alignment as that of the first and

second alignment devices

11 and 14 is performed. That is, the third alignment device 117 is based on the inspection data in the optical axis direction stored in the control device 120 and the imaging data of the camera C, and the component width direction of the second single-sided bonding panel P12 with respect to the third bonding device 118. And positioning in the rotation direction. In this state, the second single-sided bonding panel P12 is introduced into the bonding position of the third bonding device 118.

The 3rd bonding apparatus 118 is the upper surface (of liquid crystal panel P of the 2nd single-sided bonding panel P12 conveyed below the lower surface of the elongate 3rd optical member sheet | seat F3 introduced into the bonding position. Adhere the display surface side). The 3rd bonding apparatus 118 conveys the 3rd optical member sheet | seat F3 along the longitudinal direction, unwinding the 3rd optical member sheet | seat F3 from the 3rd original fabric roll R3 which wound the 3rd optical member sheet | seat F3. The conveyance apparatus 118a and the pinching roll 118b which bonds the upper surface of the 2nd single-sided bonding panel P12 which the roller conveyor 105 conveys to the lower surface of the 3rd optical member sheet | seat F3 which the conveyance apparatus 118a conveys are provided.

The transport device 118a includes a roll holding unit 118c that holds the third original roll R3 around which the third optical member sheet F3 is wound, and that feeds the third optical member sheet F3 along its longitudinal direction, and a pinching roll 118b. And a third recovery part 118d that recovers an excess portion of the third optical member sheet F3 that has passed through the third cutting device 119 located on the downstream side of the panel conveyance. The transport device 118a is a bonding position in the third bonding device 118, and the third optical member so that the bonding surface of the third optical member sheet F3 bonded to the second single-sided bonding panel P12 faces downward. A conveyance path for the sheet F3 is set.

The pinching roll 118b has a pair of laminating rollers arranged with their axial directions parallel to each other. A predetermined gap is formed between the pair of bonding rollers, and the inside of this gap is the bonding position of the third bonding device 118. In the gap, the second single-sided bonding panel P12 and the third optical member sheet F3 are overlapped and introduced. These 2nd single-sided bonding panels P12 and the 3rd optical member sheet | seat F3 are sent out to a panel conveyance downstream, being pinched between the said bonding rollers. Thereby, the 3rd bonding sheet | seat F23 which bonded continuously the several 2nd single-sided bonding panel P12 on the lower surface of the elongate 3rd optical member sheet | seat F3 is formed at predetermined intervals.

3rd cutting device 119 is located in the panel conveyance downstream rather than pinching roll 118b, and cuts 3rd optical member sheet | seat F3. The third cutting device 119 is a laser processing machine similar to the second cutting device 116, and the third optical member sheet F3 is endless along the outer peripheral edge of the display region P4 (for example, along the outer peripheral edge of the liquid crystal panel P). Disconnect.

By the cutting | disconnection of the 3rd cutting device 119, the double-sided bonding panel P13 by which the 3rd optical member F13 was bonded on the upper surface of the 2nd single-sided bonding panel P12 is formed (refer FIG. 8). Moreover, at this time, the opposing part (3rd optical member F13) of double-sided bonding panel P13 and the display area P4 is cut off, and the excess part of the 3rd optical member sheet | seat F3 which remains in frame shape is isolate | separated. A plurality of surplus portions of the third optical member sheet F3 are formed in a ladder shape like the surplus portions of the second optical member sheet F2 (see FIG. 14), and the surplus portions are wound around the third recovery portion 118d.

Similarly to the first embodiment described above, the double-sided bonding panel P13 is transported to a downstream process after being inspected for defects (such as bonding failure) through a defect inspection device (not shown) and subjected to other processing. Made.

Similarly to the control device 20 of the first embodiment described above, in the case of this embodiment, the inspection data in the optical axis direction of each optical member sheet F1, F2, F3 obtained by the inspection device is each optical member sheet. The data are stored in the memory of the control device 120 in association with the longitudinal position and the width direction position of F1, F2, and F3. Moreover, similarly to 1st embodiment mentioned above, each optical member sheet | seat F1, F2, F3 is wound up after test | inspection, and each original fabric roll R1, R2, R3 is formed, respectively.

In the present embodiment, similar to the control device 20 of the first embodiment, 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 control device 120, the optical display to be bonded to them. After aligning the component PX, the optical display component PX is bonded to the optical member sheet FX. Thereby, the same effect as the first embodiment can be obtained.

FIG. 15 shows an example in which three optical display components PX are aligned and bonded to an optical member sheet FX having a relatively wide width in the width direction. The present invention is not limited to the example shown in FIG. 15, and a configuration in which two or less or four or more optical display components PX are aligned and bonded in the width direction of the optical member sheet FX may be employed, and may be relatively wide. A configuration may be adopted in which a plurality of narrow optical member sheets FX are arranged in the width direction and the optical display component PX is bonded to each of them.

Referring to FIGS. 5 and 7, the second cutting device 116 detects the outer periphery of the display area P4 with a detection unit such as a camera 116a, and the first and second optical elements along the outer periphery of the display area P4. The member sheets F1 and F2 are cut. Similarly, the third cutting device 119 cuts the third optical member sheet F3 along the outer peripheral edge and the like of the display region P4 while detecting the outer peripheral edge of the display region P4 by a detection unit such as the camera 119a. Outside the display area P4, a frame portion G having a predetermined width for arranging a sealant or the like for bonding the first and second substrates P1 and P2 is provided, and the

cutting devices

116 and 119 are within the width of the frame portion G. Laser cutting is performed.
By using such a cutting device, the same effect as the first embodiment can be obtained (see FIGS. 9 and 10).

As described above, the optical display device production system in the above embodiment is a film bonding system that forms a part of the optical display device production system in which the optical members F11, F12, and F13 are bonded to the liquid crystal panel P. 101, a plurality of the liquid crystal panels P conveyed on the roller conveyor 105 have a strip shape having a width larger than the width of the display area P4 of the liquid crystal panel P in the component width direction orthogonal to the conveyance direction of the liquid crystal panel P. While unwinding the optical member sheets F1, F2, and F3 from the raw fabric rolls R1, R2, and R3, a plurality of the liquid crystal panels P are bonded to the optical member sheets F1, F2, and F3 to bond sheets F21 and F22. , F23, and a pair of optical member sheets F2, F3 facing the display area P4. Separating the portion and the surplus portion located outside the facing portion, and appropriately cutting out the optical members F11, F12, F13 having a size corresponding to the display area P4 from the optical member sheets F2, F3, A

cutting device

116, 119 for cutting out the single-sided bonding panels P12, P13 appropriately including the single liquid crystal panel P and the optical members F11, F12, F13 overlapping therewith from the bonding sheets F22, F23, and the optical member At the bonding position between the sheet FX and the optical display component PX, the

bonding devices

112, 115, and 118 are configured so that the bonding surface between the optical member sheet FX and the optical display component PX faces downward. The member sheet FX is conveyed.

More specifically, in the production system for the optical display device, the liquid crystal panel P is arranged in the component width direction orthogonal to the transport direction of the liquid crystal panel P with respect to the plurality of liquid crystal panels P transported on the roller conveyor 105. The first optical member sheet F1 having a width larger than the width of the display region P4 is unwound from the first raw roll R1, and the first surfaces of the plurality of liquid crystal panels P are placed on the first optical member sheet F1. From the 1st bonding sheet | seat 112 which bonds (one surface among the surface and the back surface) and makes it the 1st bonding sheet | seat F21, and said 1st bonding sheet | seat F21, it overlaps with this single liquid crystal panel P. And on the roller conveyor 105, the 1st cutting device 113 which cuts out the 1st single-sided bonding panel P11 containing the sheet piece F1S of said 1st optical member sheet | seat F1 larger than the said display area P4, and The second optical member sheet F2 having a width larger than the width of the display region P4 in the component width direction is sent from the second raw roll R2 to the plurality of first single-sided panels P11 to be sent. While unwinding, the 2nd bonding apparatus 115 which bonds the surface by the side of the said sheet piece F1S of several said 1st single-sided bonding panel P11 to said 2nd optical member sheet | seat F2, and makes it the 2nd bonding sheet | seat F22, The facing portion (first facing portion) of the sheet piece F1S of the first single-sided bonding panel P11 facing the display region P4, and the second optical of the second bonding sheet F22 facing the display region P4. On the first surface of the liquid crystal panel P (one of the front surface and the back surface), the opposing portion (second opposing portion) of the member sheet F2 and the excess portion located outside the opposing portions are separated together. The first light From the second bonding sheet F22, the first optical member F11 made of the member sheet F1 and the second optical member F12 made of the second optical member sheet F2 are formed in a size corresponding to the display area P4. A second cutting device 116 that cuts out the second single-sided bonding panel P12 including the single liquid crystal panel P and the first and second optical members F11 and F12 overlapping with the liquid crystal panel P, and the first bonding device 112 is provided. In the bonding position between the first optical member sheet F1 and the liquid crystal panel P, the first optical member sheet is arranged such that the bonding surface of the first optical member sheet F1 with the liquid crystal panel P faces downward. F1 is conveyed and said 2nd bonding apparatus 115 is said 1st single-sided bonding of said 2nd optical member sheet | seat F2 in the bonding position of said 2nd optical member sheet | seat F2 and said 1st single-sided bonding panel P11. Panel The second optical member sheet F2 is conveyed so that the bonding surface with P11 faces downward.

Moreover, the production system of the optical display device has a strip shape having a width larger than the width of the display region P4 in the component width direction with respect to the plurality of second single-sided bonding panels P12 conveyed on the roller conveyor 105. The first and second optical members F11, F12 of the plurality of second single-sided panels P12 on the third optical member sheet F3 while unwinding the third optical member sheet F3 from the third original fabric roll R3. And the third optical member sheet F3 facing the display region P4 in the third bonding sheet F23, and the third bonding sheet 118 to be bonded to the opposite surface to the third bonding sheet F23. The display area P is separated on the second surface of the liquid crystal panel P (the surface opposite to the first surface, the other surface of the front surface and the back surface) by separating the portion and the surplus portion located outside the facing portion. By forming the third optical member F13 having a size corresponding to the first liquid crystal panel P from the third bonding sheet F23 and the first, second and third optical members F1, F2 overlapping therewith. , F3, and a third cutting device 119 that cuts out the double-sided bonding panel P13, and at the bonding position between the third optical member sheet F3 and the second single-sided bonding panel P12, the third optical member sheet F3. The third bonding device 118 conveys the third optical member sheet F3 such that the bonding surface with the second single-sided bonding panel P12 faces downward.

In the second embodiment, the same effects as in the first embodiment can be obtained.
Furthermore, after bonding the liquid crystal panel P to the optical member sheets F1, F2, and F3 larger than the display region P4, the excess portions of the optical member sheets F1, F2, and F3 are separated to correspond to the display region P4. The sized optical members F11, F12, and F13 can be formed on the surface of the liquid crystal panel P. As a result, the optical members F11, F12, and F13 can be accurately provided up to the display region P4, and the frame portion G outside the display region P4 can be narrowed to enlarge the display area and downsize the device.
And each optical member sheet | seat F1, F2, F3 is conveyed so that the bonding surface by the side of the adhesion layer may face downward at the bonding position with optical display component PX. Scratches on the bonding surface of F3, adhesion of foreign matters, and the like can be suppressed, and occurrence of bonding failure can be suppressed.

The optical display device production system includes the third alignment device 117 that reverses the front and back surfaces of the second single-sided bonding panel P12 conveyed on the roller conveyor 105, so that the optical display component PX The optical member sheet FX can be easily bonded to the front and back surfaces from above.

Here, the method for producing an optical display device in the above embodiment is such that the liquid crystal panel P is in the component width direction orthogonal to the transport direction of the liquid crystal panel P with respect to the plurality of liquid crystal panels P transported on the roller conveyor 105. A plurality of liquid crystals are applied to the optical member sheets F1, F2, and F3 while unrolling the strip-shaped optical member sheets F1, F2, and F3 having a width larger than the width of the display region P4 from the original fabric rolls R1, R2, and R3. The process of bonding the panel P to form the bonding sheets F21, F22, and F23, and the facing portion of the optical member sheets F2 and F3 facing the display area P4 and the surplus portion positioned outside the facing portion are separated. The optical members F11, F12, and F13 having a size corresponding to the display area P4 are appropriately cut out from the optical member sheets F2 and F3. Cutting the bonding panels P12, P13 appropriately including the single liquid crystal panel P and the optical members F11, F12, F13 overlapping therewith from the bonding sheets F22, F23, and the optical member sheet FX. At the bonding position with the optical display component PX, the

bonding devices

112, 115, and 118 are connected to the optical member sheet FX so that the bonding surface of the optical member sheet FX with the optical display component PX faces downward. Transport.

In addition, FIG. 16 shows the modification of the film bonding system 101. FIG. This is particularly different from the configuration shown in FIG. 13 in that it includes a first bonding device 112 ′ that replaces the first bonding device 112 and a first cutting device 113 ′ that replaces the first cutting device 113. . Other configurations in the modification and configurations that are the same as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

1st bonding apparatus 112 'is equipped with the conveying apparatus 112a' replaced with the said conveying apparatus 112a. Compared to the transport device 112a, the transport device 112a ′ includes the first optical member sheet F1 left in a ladder shape through the first cutting device 113 ′ in addition to the roll holding unit 112c and the pf collection unit 112d. It further has the 1st collection | recovery part 112e which winds up an excessive part.

The first cutting device 113 ′ is positioned on the downstream side of the panel conveyance with respect to the pf collection unit 112d and on the upstream side of the panel conveyance with respect to the first collection unit 112e. In order to cut out, the first optical member sheet F1 is cut. The first cutting device 113 'is a laser processing machine similar to the second and

third cutting devices

116 and 119, and cuts the first optical member sheet F1 in an endless manner along a predetermined line outside the display region P4.

By cutting | disconnecting 1st cutting device 113 ', 1st single-sided bonding panel P11' by which the sheet piece of 1st optical member sheet | seat F1 larger than the display area P4 was bonded on the upper surface of liquid crystal panel P is formed. Moreover, at this time, 1st single-sided bonding panel P11 'and the surplus part of the 1st optical member sheet | seat F1 cut and left in the ladder form are isolate | separated, and the surplus part of the 1st optical member sheet | seat F1 is the 1st collection | recovery part 112e. Rolled up.
And the structure in the said embodiment and modification is an example of this invention, A various change is possible in the range which does not deviate from the summary of the said invention.
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 are not to 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.

1,101 Film bonding system (Optical device production system)
5, 105 Roller conveyor (line)
12, 112 First bonding device (bonding device)
15, 115 Second bonding device (bonding device)
18, 118 Third bonding device (bonding device)
13, 113

First cutting device

16, 116 Second cutting device (cutting device)
19, 119 Third cutting device (cutting device)
P Liquid crystal panel (optical display component)
P4 display area F1 first optical member sheet (optical member sheet)
F1S sheet piece F2 second optical member sheet (optical member sheet)
F3 Third optical member sheet (optical member sheet)
FX optical member sheet F11 first optical member (optical member)
F12 Second optical member (optical member)
F13 Third optical member (optical member)
F21 1st bonding sheet (bonding sheet)
F22 2nd bonding sheet (bonding sheet)
F23 Third bonding sheet (bonding sheet)
P11 1st single-sided bonding panel (1st optical member bonding body)
P12 2nd single-sided bonding panel (optical member bonding body, second optical member bonding body)
P13 Double-sided bonding panel (optical member bonding body, second optical member bonding body)
PX Optical display component R1 First roll (raw roll)
R2 Second fabric roll (raw fabric roll)
R3 Third raw roll (raw roll)

Claims

In the production system of an optical display device formed by bonding an optical member to an optical display component,
A strip-shaped optical member sheet having a width larger than the width of the display area of the optical display component in a component width direction orthogonal to the conveyance direction of the optical display component, with respect to the plurality of optical display components conveyed on a line. A bonding apparatus that forms a bonding sheet by bonding a plurality of the optical display components to the optical member sheet while unwinding from the raw roll.
Cutting off the optical member having a size corresponding to the display area from the optical member sheet by separating a facing part of the optical member sheet facing the display area and a surplus part located outside the facing part. And the cutting apparatus which cuts out the optical member bonding body containing the said optical member which overlaps the said optical display component and the said optical display component single from the said bonding sheet | seat, The production system of the optical display device characterized by these.
Based on inspection data in the optical axis direction of the optical member sheet, a control device that determines a relative bonding position between the optical display component and the optical member sheet;
The system for producing an optical display device according to claim 1, further comprising: an alignment device that aligns the optical display component with respect to the optical member sheet based on the relative bonding position determined by the control device.
In the production system of an optical display device formed by bonding an optical member to an optical display component,
A strip-shaped first optical member having a width larger than the width of the display area of the optical display component in the component width direction orthogonal to the conveyance direction of the optical display component with respect to the plurality of optical display components conveyed on the line While unwinding the sheet from the first raw fabric roll, a first bonding device that forms the first bonding sheet by bonding the first surfaces of the plurality of optical display components to the first optical member sheet;
A first optical member bonded body including a single optical display component and a sheet piece of the first optical member sheet that overlaps the optical display component and is larger than the display area is cut out from the first bonding sheet. A cutting device;
A belt-shaped second optical member sheet having a width larger than the width of the display area in the component width direction is wound from a second raw roll on the plurality of first optical member bonded bodies conveyed on the line. A second laminating device that forms a second laminating sheet by laminating the surface on which the sheet pieces of the plurality of the first optical member laminating bodies are positioned on the second optical member sheet,
The facing part of the sheet piece of the first optical member bonding body facing the display area, the facing part of the second optical member sheet of the second bonding sheet facing the display area, and both facing parts A first optical member made of the first optical member sheet and a second optical member made of the second optical member sheet on the first surface of the optical display component. The first and second optical members that overlap the single optical display component and the optical display component from the second bonding sheet by forming as the optical member having a size corresponding to the display area. And a second cutting device that cuts out the second optical member bonded body including the optical display device production system.
A belt-shaped third optical member sheet having a width larger than the width of the display region in the component width direction is wound from a third raw roll on the plurality of second optical member bonded bodies conveyed on the line. 3rd bonding which bonds the surface on the opposite side to said 1st and 2nd optical member of a plurality of said 2nd optical member bonding body on said 3rd optical member sheet | seat, and forms a 3rd bonding sheet | seat while taking out. Equipment,
In the third bonding sheet, the facing portion of the third optical member sheet facing the display area is separated from the surplus portion located outside the facing portion, and is opposite to the first surface of the optical display component. On the second surface, by forming a third optical member as one of the optical members having a size corresponding to the display region, a single optical display component from the third bonding sheet and the An optical display device production system according to claim 3, comprising: a third cutting device that cuts out a third optical member bonded body that includes the first, second, and third optical members that overlap the optical display component. .
In the production method of an optical display device formed by bonding an optical member to an optical display component,
A strip-shaped optical member sheet having a width larger than the width of the display area of the optical display component in a component width direction orthogonal to the conveyance direction of the optical display component, with respect to the plurality of optical display components conveyed on a line. , While unwinding from the raw fabric roll, to form a bonding sheet by laminating the plurality of optical display components to the optical member sheet,
Cutting off the optical member having a size corresponding to the display area from the optical member sheet by separating a facing part of the optical member sheet facing the display area and a surplus part located outside the facing part. And the optical member bonding body containing the said optical member which overlaps with the said single optical display component and the said optical display component from the said bonding sheet | seat is cut out. The manufacturing method of the optical display device characterized by the above-mentioned.
In the production system of an optical display device formed by bonding an optical member to an optical display component,
A strip-shaped optical member sheet having a width larger than the width of the display area of the optical display component in a component width direction orthogonal to the conveyance direction of the optical display component, with respect to the plurality of optical display components conveyed on a line. A bonding apparatus that forms a bonding sheet by bonding a plurality of the optical display components to the optical member sheet while unwinding from the raw roll.
Cutting off the optical member having a size corresponding to the display area from the optical member sheet by separating a facing part of the optical member sheet facing the display area and a surplus part located outside the facing part. And a cutting device that cuts out the optical member bonded body including the optical member that overlaps the optical display component and the optical display component from the bonding sheet,
The bonding apparatus conveys the optical member sheet so that the bonding surface of the optical member sheet and the optical display component faces downward at the bonding position of the optical member sheet and the optical display component. An optical display device production system.
In the production system of an optical display device formed by bonding an optical member to an optical display component,
A strip-shaped first optical member having a width larger than the width of the display area of the optical display component in the component width direction orthogonal to the conveyance direction of the optical display component with respect to the plurality of optical display components conveyed on the line While unwinding the sheet from the first raw fabric roll, a first bonding device that forms the first bonding sheet by bonding the first surfaces of the plurality of optical display components to the first optical member sheet;
A first optical member bonded body including a single optical display component and a sheet piece of the first optical member sheet that overlaps the optical display component and is larger than the display area is cut out from the first bonding sheet. A cutting device;
A belt-shaped second optical member sheet having a width larger than the width of the display area in the component width direction is wound from a second raw roll on the plurality of first optical member bonded bodies conveyed on the line. A second laminating device that forms a second laminating sheet by laminating the surface on which the sheet pieces of the plurality of the first optical member laminating bodies are positioned on the second optical member sheet,
The facing part of the sheet piece of the first optical member bonding body facing the display area, the facing part of the second optical member sheet of the second bonding sheet facing the display area, and both facing parts A first optical member made of the first optical member sheet and a second optical member made of the second optical member sheet on the first surface of the optical display component. The first and second optical members that overlap the single optical display component and the optical display component from the second bonding sheet by forming as the optical member having a size corresponding to the display area. A second cutting device for cutting out the second optical member bonded body including,
At the bonding position between the first optical member sheet and the optical display component, the first bonding device is arranged so that the bonding surface of the first optical member sheet with the optical display component faces downward. Transport one optical member sheet,
At the bonding position of the second optical member sheet and the first optical member bonding body, the second optical member sheet so that the bonding surface of the second optical member sheet and the first optical member bonding body faces downward. The bonding apparatus conveys said 2nd optical member sheet | seat. The production system of the optical display device characterized by the above-mentioned.
A belt-shaped third optical member sheet having a width larger than the width of the display region in the component width direction is wound from a third raw roll on the plurality of second optical member bonded bodies conveyed on the line. 3rd bonding which bonds the surface on the opposite side to said 1st and 2nd optical member of a plurality of said 2nd optical member bonding body on said 3rd optical member sheet | seat, and forms a 3rd bonding sheet | seat while taking out. Equipment,
In the third bonding sheet, the facing portion of the third optical member sheet facing the display area is separated from the surplus portion located outside the facing portion, and is opposite to the first surface of the optical display component. On the second surface, by forming a third optical member as one of the optical members having a size corresponding to the display region, a single optical display component from the third bonding sheet and the A third cutting device for cutting out the third optical member bonded body including the first, second and third optical members overlapping the optical display component,
In the bonding position of the third optical member sheet and the second optical member bonding body, the third optical member sheet so that the bonding surface of the third optical member sheet and the second optical member bonding body faces downward. The production system of the optical display device according to claim 7, wherein the bonding device conveys the third optical member sheet.
The optical display device production system according to claim 8, further comprising a reversing device that reverses the front surface and the back surface of the second optical member bonding body conveyed on the line.
In the production method of an optical display device formed by bonding an optical member to an optical display component,
A strip-shaped optical member sheet having a width larger than the width of the display area of the optical display component in a component width direction orthogonal to the conveyance direction of the optical display component, with respect to the plurality of optical display components conveyed on a line. , While unwinding from the raw fabric roll, to form a bonding sheet by laminating the plurality of optical display components to the optical member sheet,
Cutting off the optical member having a size corresponding to the display area from the optical member sheet by separating a facing part of the optical member sheet facing the display area and a surplus part located outside the facing part. Then, cut out the optical member bonding body including the optical member that overlaps the single optical display component and the optical display component from the bonding sheet,
The optical member sheet is conveyed so that a bonding surface of the optical member sheet with the optical display component faces downward at a bonding position between the optical member sheet and the optical display component. Display device production method.