WO2013081105A1 - Système de fabrication de dispositif d'affichage optique et procédé de fabrication associé - Google Patents

Système de fabrication de dispositif d'affichage optique et procédé de fabrication associé Download PDF

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Publication number
WO2013081105A1
WO2013081105A1 PCT/JP2012/081087 JP2012081087W WO2013081105A1 WO 2013081105 A1 WO2013081105 A1 WO 2013081105A1 JP 2012081087 W JP2012081087 W JP 2012081087W WO 2013081105 A1 WO2013081105 A1 WO 2013081105A1
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WIPO (PCT)
Prior art keywords
optical member
sheet
optical
bonding
primary
Prior art date
Application number
PCT/JP2012/081087
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English (en)
Japanese (ja)
Inventor
幹士 藤井
達也 土岡
Original Assignee
住友化学株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 住友化学株式会社 filed Critical 住友化学株式会社
Priority to KR1020147010868A priority Critical patent/KR102010102B1/ko
Priority to CN201280053622.XA priority patent/CN103907051B/zh
Publication of WO2013081105A1 publication Critical patent/WO2013081105A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs

Definitions

  • 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. 2011-262949 filed on November 30, 2011 and Japanese Patent Application No. 2011-262950 filed on November 30, 2011, the contents of which are incorporated herein by reference. .
  • an optical member such as a polarizing plate to be bonded to a liquid crystal panel (optical display component) is formed from a long film into a sheet piece having a size matching the display area of the liquid crystal panel. After being cut out, packed and transported to another line, it may be bonded to a liquid crystal panel (see, for example, Patent Document 1).
  • 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.
  • the optical display device production system 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 conveyed on a line.
  • the primary optical member sheet is unwound from a primary raw roll while strip-like primary 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.
  • a primary bonding apparatus that forms a bonding sheet by bonding the first surfaces of the plurality of optical display components to a member sheet; and an outer portion of the opposing portion of the primary optical member sheet that faces the display area and the outer portion of the opposing portion.
  • the pasting is performed by separating a surplus portion positioned and cutting out a primary optical member as the optical member having a size corresponding to the display area from the primary optical member sheet.
  • a primary cutting device that cuts out a primary optical member bonded body including a single optical display component and a primary optical member that overlaps the single optical display component, and a plurality of the primary optical member pastes conveyed on the line.
  • a strip-shaped secondary optical member sheet having a width corresponding to the display area in the component width direction is unwound from the secondary raw roll together with a separator sheet, and the display area is transferred to the secondary optical member sheet.
  • the secondary optical member sheet is unwound by a length corresponding to the cut, the cut along the width direction is performed, and after forming the secondary optical member as the optical member having a size corresponding to the display area,
  • the secondary optical member is bonded to the second surface of the optical display component in the primary optical member bonding body while conveying the plurality of secondary optical members using a separator sheet as a carrier. And a next bonding apparatus.
  • 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 secondary laminating apparatus cuts the secondary optical member sheet with the separator sheet and the secondary optical member sheet.
  • the secondary optical member is formed in one unwinding direction in the unwinding direction of the secondary optical member sheet than the cut position for forming the secondary optical member by cutting and the cutting position for cutting the secondary optical member sheet.
  • a control unit that adjusts the distance between the cut position and the detection position according to the position of the cut line when the cut line is detected at detection positions separated by a distance of Preferably they comprises a.
  • the method for producing an optical display device 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.
  • the primary optical member sheet in the form of a strip 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, A first portion of the plurality of optical display components is bonded to an optical member sheet to form a bonding sheet, and a surplus portion located outside the facing portion and the facing portion of the primary optical member sheet facing the display area And cutting out a primary optical member as the optical member having a size corresponding to the display area from the primary optical member sheet, so that a single optical is obtained from the bonding sheet.
  • the primary optical member bonded body including the primary optical member overlapping the display component and the single optical display component is cut out, and the display is performed in the component width direction with respect to the plurality of primary optical member bonded bodies conveyed on the line.
  • a strip-shaped secondary optical member sheet having a width corresponding to the region is unwound together with a separator sheet from a secondary raw roll, and the secondary optical member is formed on the secondary optical member sheet with a length corresponding to the display region.
  • the secondary optical member is bonded to the second surface of the optical display component in the primary optical member bonded body while conveying the member.
  • An optical display device production system 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 conveyed on a line to the plurality of optical display components.
  • the primary optical member sheet in the form of a strip 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,
  • a primary bonding apparatus that forms a bonding sheet by bonding first surfaces of a plurality of the optical display components to an optical member sheet; an opposing portion of the primary optical member sheet that faces the display region; and an outside of the opposing portion
  • cutting off a primary optical member as the optical member having a size corresponding to the display area from the primary optical member sheet A primary cutting device that cuts out a primary optical member bonded body including a single optical display component and the primary optical member that overlaps the single optical display component from a composite sheet, and a plurality of the primary optical member pasted on a line
  • the secondary optical member sheet is unwound by a length corresponding to the cut, the cut along the width direction is performed, and after forming the secondary optical member as the optical member having a size corresponding to the display area, While transporting the plurality of secondary optical members using a separator sheet as a carrier, the secondary optical members are bonded to the second surface of the optical display component in the primary optical member bonding body. Secondary bonding apparatus, and at the bonding position of the primary optical member sheet and the optical display component, the bonding surface of the primary optical member sheet with the optical display component is directed downward.
  • a primary bonding apparatus conveys the said primary optical member sheet
  • the secondary bonding apparatus conveys the secondary optical member sheet so that the mating surface faces downward.
  • the production system of the optical display device preferably includes a reversing device for reversing the front surface and the back surface of the primary optical member bonded body conveyed on the line.
  • the secondary laminating apparatus cuts the secondary optical member sheet with the separator sheet and the secondary optical member sheet.
  • the secondary optical member is formed in one unwinding direction in the unwinding direction of the secondary optical member sheet than the cut position for forming the secondary optical member by cutting and the cutting position for cutting the secondary optical member sheet.
  • a control unit that adjusts the distance between the cut position and the detection position according to the position of the cut line when the cut line is detected at detection positions separated by a distance of Preferably comprises a.
  • the method for producing an optical display device 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.
  • the primary optical member is unwound from the primary raw roll while strip-like primary optical member sheet having a width corresponding to the display area of the optical display component in the component width direction orthogonal to the conveying direction of the optical display component.
  • a first sheet of a plurality of the optical display components is bonded to a sheet to form a bonding sheet, and a facing part of the primary optical member sheet facing the display area and a surplus part positioned outside the facing part
  • a single optical display unit is separated from the pasting sheet by cutting out the primary optical member as the optical member having a size corresponding to the display area from the primary optical member sheet. And cut out a primary optical member bonded body including the primary optical member that overlaps the single optical display component, and a plurality of the primary optical member bonded bodies conveyed on a line, in the display area in the component width direction.
  • a belt-shaped secondary optical member sheet having a corresponding width is unwound together with a separator sheet from a secondary raw roll, and the secondary optical member sheet has a length corresponding to the display area on the secondary optical member sheet.
  • a cut along the width direction is performed, and after forming a secondary optical member as the optical member having a size corresponding to the display area, a plurality of the secondary optical members are formed using the separator sheet as a carrier.
  • the secondary optical member While transporting, the secondary optical member is bonded to the second surface of the optical display component in the primary optical member bonding body, and the primary optical member sheet and the optical display component
  • the primary optical member sheet is conveyed so that the bonding surface of the primary optical member sheet with the optical display component faces downward at the bonding position, and the secondary optical member sheet and the primary optical member bonded body.
  • the secondary optical member sheet is conveyed so that the bonding surface of the secondary optical member sheet with the primary optical member bonding body faces downward.
  • an optical member is formed by cutting a band-shaped optical member sheet having a width corresponding to the display area into a predetermined length, and the separator sheet rolled out together with the optical member sheet is used as a carrier. While transporting, it is bonded to the optical display component within the line for cutting. As a result, compared to the case where the polarizing plate processed to fit the display area is transported to another line, the dimensional variation and bonding variation of the optical member are suppressed, the frame portion around the display area is reduced, and the display area is reduced. Expansion and downsizing of the device can be achieved.
  • the optical member sheet since the optical member sheet is conveyed so that the adhesive surface on the adhesive layer side is directed downward at the bonding position with the optical display component, the optical member sheet has a scratch on the bonding surface or adhesion of foreign matters. It is suppressed and generation
  • 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.
  • 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 (control unit) as an electronic control device.
  • the film bonding system 1 sequentially performs a predetermined process on the liquid crystal panels P while transporting the liquid crystal panels P from the start position to the end position of the bonding process using, for example, a driving roller conveyor 5 (line).
  • the liquid crystal panel P is conveyed on the roller conveyor 5 with its front and back surfaces being horizontal.
  • 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)
  • 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 P has a rectangular shape in plan view, and a display region P4 having an outer shape along the outer peripheral edge is formed on the inner side of 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.
  • the display area P4 is transported in a direction substantially along the transport direction.
  • the 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. Is appropriately bonded.
  • a first optical member F11 and a third optical member F13 as polarizing films are bonded to both the backlight side and the display surface side of the liquid crystal panel P, respectively.
  • a second optical member F12 as a brightness enhancement film is further bonded to the first optical member F11.
  • 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 (primary bonding apparatus) 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, and the 1st bonding apparatus 12 and the second alignment device 14 provided on the downstream side of the panel conveyance from the first cutting device 13.
  • the film bonding system 1 is provided in the proximity of the second bonding device 15 and the second bonding device 15 that are provided on the panel transport downstream side of the second alignment device 14.
  • a second cutting device 16 primary cutting device
  • a third alignment device 17 provided downstream of the second laminating device 15 and the second cutting device 16
  • a third laminating device 18 secondary laminating device
  • 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.
  • 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.
  • 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).
  • the liquid crystal panel P is introduced into the bonding position of the first bonding apparatus 12.
  • the 1st bonding apparatus 12 bonds 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
  • the 1st bonding apparatus 12 unwinds the 1st optical member sheet
  • the conveyance apparatus 12a conveyed along a longitudinal direction, 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
  • the transport device 12a 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 of the first optical member sheet F1.
  • a pf collection unit 12d that collects the protection film pf fed together with the first optical member sheet F1 on the lower side of the first optical member sheet F1 on the downstream side of the panel transfer 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
  • the 1st cutting device 13 is located in the panel conveyance downstream rather than pf collection part 12d. 4 and 5 together, the first cutting device 13 cuts the first optical member sheet F1 of the first bonding sheet F21 and is larger than the display region P4 (in this embodiment, from the liquid crystal panel P). Is larger) a predetermined portion (between the liquid crystal panels P arranged in the transport direction) of the first optical member sheet F1 is cut over the entire width in the component width direction so as to obtain a sheet piece F1S. It does not matter whether the first cutting device 13 uses a cutting blade or a laser cutter. By the said cutting
  • 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.
  • 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.
  • the said rotation is made
  • 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
  • the 2nd bonding apparatus 15 is the lower surface (of liquid crystal panel P of the 1st single-sided bonding panel P11 conveyed above that with respect to the upper surface of the elongate 2nd optical member sheet
  • the 2nd bonding apparatus 15 unwinds the 2nd optical member sheet
  • the transport device 15a holds the second original roll R2 around which the second optical member sheet F2 is wound, and rolls out the second optical member sheet F2 along the longitudinal direction of the second optical member sheet F2. And a second recovery part 15d for recovering the surplus 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 from the pinching roll 15b.
  • 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
  • the 2nd cutting device 16 is located in a panel conveyance downstream rather than the pinching roll 15b.
  • the second cutting device 16 includes a second optical member sheet F2 and a sheet piece F1S of the first optical member sheet F1 of the first single-sided bonding panel P11 bonded to the upper surface thereof. Disconnect at the same time.
  • 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).
  • 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.
  • the 2nd single-sided bonding panel P12 by which the 1st and 2nd optical members F11 and F12 were piled up and bonded on the lower surface of liquid crystal panel P (refer FIG. 7) is formed. Moreover, the surplus part of each optical member sheet
  • the A plurality of surplus portions of the second optical member sheet F2 are connected in a ladder shape (see FIG. 2), and the surplus portions are wound around the second collection portion 15d together with the surplus portions of the first optical member sheet F1.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 3rd optical member sheet
  • the transport device 19 that transports the sheet SS while unwinding and feeds the third optical member F13 from the third optical member sheet F3 to the bonding position, and the third transport device 19 cuts from the third optical member sheet F3.
  • a pressing roll 21 is provided that bonds the upper surface of the optical member F13 to the lower surface (display surface side of the liquid crystal panel P) of the second single-sided bonding panel P12 that the roller conveyor 5 conveys.
  • the transport device 19 continuously transports the plurality of third optical members F13 using the separator sheet SS as a carrier.
  • the third optical member sheet F3 and the separator sheet SS correspond to the width corresponding to the display area P4 of the liquid crystal panel P in the component width direction (corresponding to the width not less than the entire width of the display area P4 and not more than the entire width of the liquid crystal panel P in this embodiment).
  • Separator sheet SS overlaps with 3rd optical member sheet
  • the combination of the separator sheet SS and the third optical member sheet F3 is referred to as a third optical member sheet body F3S.
  • the transport device 19 holds the third original roll R3 and rolls out the third optical member sheet F3S from the third original roll R3 along the longitudinal direction of the third optical member sheet F3S.
  • the third optical member 19a (unwinding part) and the third optical member sheet F3S unwound from the third original fabric roll R3 are guided to the bonding position of the third bonding apparatus 18 along the predetermined sheet conveying path.
  • a separator 19c (cut part) that performs cutting, and a separator sheet SS side of the third optical member sheet F3S that has been half-cut is wound at an acute angle.
  • the roll holding unit 19a positioned at the start point of the transport device 19 and the separator recovery unit 19e positioned at the end point of the transport device 19 are driven in synchronization with each other, for example.
  • the separator holding unit 19a unwinds the third optical member sheet body F3S in the conveying direction of the third optical member sheet body F3S, and the separator recovery unit 19e becomes a single separator sheet SS via the knife edge 19d. Wind up.
  • the cutting device 19c When the third optical member sheet body F3S is unwound by a predetermined length, the cutting device 19c has a width perpendicular to the longitudinal direction (unwinding direction) of the third optical member sheet body F3S.
  • the separator sheet SS is cut over the entire width in the direction (that is, only the third optical member sheet F3 is cut).
  • the cutting device 19c adjusts the advancing / retreating position of the cutting blade so that the separator sheet SS is not broken by the tension acting during the conveyance of the third optical member sheet body F3S.
  • a cut line that extends over the entire width in the width direction of the third optical member sheet body F3S is formed.
  • the upstream side of the panel conveyance is cut at the downstream side in the unwinding direction of the third optical member F13.
  • a first detection camera 22 for detecting the end is provided. The detection information of the first detection camera 22 is sent to the control device 20. For example, when the first detection camera 22 detects the downstream end of the third optical member F13, the control device 20 temporarily stops the transport device 19.
  • the control apparatus 20 drives the conveying apparatus 19, and the 2nd single-sided bonding panel P12, the 3rd optical member F13, Can be synchronized and introduced into the bonding position of the third bonding apparatus 18.
  • the third optical member F13 is similarly wound on the upstream side in the unwinding direction from the first detection camera 22 and downstream of the cutting device 19c by one third optical member F13 in the unwinding direction.
  • a second detection camera 23 detection unit that detects a cut end on the downstream side in the ejection direction is provided. Detection information of the second detection camera 23 is also sent to the control device 20.
  • the control device 20 unwinds the third optical member sheet F3 by the cutting device 19c, for example, and the second detection camera 23 detects the cut end (the cut line on the most upstream side of the third optical member sheet F3). At that time, the conveying device 19 is temporarily stopped. At this time, the third optical member sheet F3 is cut by the cutting device 19c.
  • the detection position by the second detection camera 23 corresponds to the optical axis extension position of the second detection camera 23 in the third optical member sheet F3 and the cut position by the cutting device 19c (of the cutting device 19c in the third optical member sheet F3). (Corresponding to the cutting blade advance / retreat position) along the sheet conveyance path corresponds to the length of the third optical member F13.
  • the cut lines are formed at regular intervals in the longitudinal direction of the third optical member sheet body F3S when, for example, the third optical member F13 to be bonded to the liquid crystal panel P of the same size is cut out.
  • the third optical member sheet F3 is divided into a plurality of sections in the longitudinal direction by a plurality of cut lines, and the sections sandwiched between a pair of cut lines adjacent in the longitudinal direction in the third optical member sheet F3 are respectively third optical members.
  • the member is F13.
  • the length of the third optical member F13 is not less than the entire length of the display region P4 and not more than the entire length of the liquid crystal panel P.
  • the cutting device 19c is movable along the sheet conveyance path of the third optical member sheet body F3S. By this movement, the distance along the sheet conveyance path between the detection position by the second detection camera 23 and the cutting position by the cutting device 19c varies.
  • the movement of the cutting device 19c is controlled by the control device 20. For example, when the third optical member sheet F3 is unwound by the cutting device 19c after the third optical member sheet F3 is cut, the cut end is moved from a predetermined position. In the case of deviation, this deviation is corrected by the movement of the cutting device 19c.
  • the correction and the length change of the third optical member F13 may be performed by moving at least one of the cutting device 19c and the second detection camera 23 in the sheet conveyance direction. Further, the cutting device 19c and the second detection camera 23 are close to each other. However, in order to prevent the vibration of the second detection camera 23 accompanying the movement of the cutting device 19c or the like, it is preferable to support them with separate frames.
  • the knife edge 19d is disposed below the roller conveyor 5 and extends at least over its entire width in the width direction of the third optical member sheet body F3S.
  • the knife edge 19d is wound at an acute angle so as to be in sliding contact with the separator sheet SS side of the third optical member sheet body F3S after the half cut.
  • the third optical member sheet F3S separates the third optical member F13 from the separator sheet SS when it is folded at an acute angle by the knife edge 19d.
  • the knife edge 19d is disposed close to the panel conveyance downstream side of the pinching roll 21.
  • the third optical member F13 separated from the separator sheet SS by the knife edge 19d is introduced between the pair of bonding rollers of the pinching roll 21 while overlapping the lower surface of the liquid crystal panel P conveyed by the roller conveyor 5.
  • the pinching roll 21 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 gap is the bonding position of the third bonding device 18.
  • the second single-sided bonding panel P12 and the third optical member F13 are introduced overlapping each other.
  • These 2nd single-sided bonding panels P12 and the 3rd optical member F13 are sent out to a panel conveyance downstream, being pinched between the said bonding rollers. Thereby, the double-sided bonding panel P13 which bonded the 3rd optical member F13 to the 2nd single-sided bonding panel P12 is formed (refer FIG. 7).
  • 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.
  • 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.
  • 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.
  • 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.
  • a peeling film and a protective film may be further laminated
  • 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).
  • 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.
  • 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 component PX. There are things to do.
  • 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.
  • 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.
  • the optical axis having the maximum angle and the minimum optical axis with respect to a predetermined reference axis 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.
  • 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.
  • 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.
  • 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 other one side of the outer periphery corresponds to the second substrate P2. Bulge outward from one side. 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.
  • the second cutting device 16 detects the outer peripheral edge of the display region P4 with a detection unit such as a camera 16a, and the first and second optical member sheets F1 along the outer peripheral edge of the display region P4. , F2 is cut.
  • 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.
  • the frame is cut by the second cutting device 16 within the width of the frame portion G. Laser cut is made.
  • 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.
  • 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 the deflection width of the cutting line of the cutting blade. Therefore, in the present embodiment, it is possible to reduce the width of the frame portion G as compared with the case where the optical member sheet FX is cut using a cutting blade, and the liquid crystal panel P can be reduced in size and / or the display area P4. Can be made larger.
  • 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.
  • 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 transported to another line and bonded to the liquid crystal panel P, the dimensional tolerances of the sheet piece and the liquid crystal panel P respectively.
  • the dimensional tolerances of these relative bonding positions 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).
  • 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).
  • the cutting force is not input to the liquid crystal panel P, and cracks and chips are hardly generated at the edge of the substrate of the liquid crystal panel P.
  • durability against heat cycle and the like is improved.
  • there is no contact with the liquid crystal panel P there is little damage to the electrical component mounting portion P5.
  • the 3rd bonding apparatus 18 cuts the strip
  • the 3rd bonding apparatus 18 is bonded to the 2nd single-sided bonding panel P12 within the line which performs the said cut, conveying this 3rd optical member F13 with separator sheet SS. For this reason, compared with the case where the polarizing plate processed according to the display area P4 is conveyed to another line, the influence of the dimensional variation of the 3rd optical member F13 and bonding variation is suppressed.
  • a laser cut start point pt1 is set on the extension of one long side of the display region 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.
  • 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.
  • a strip shape having a width larger than the width of the display region P ⁇ b> 4 of the liquid crystal panel P in the component width direction orthogonal to the conveyance direction of the optical display components PX. While the optical member sheets F1 and F2 are unwound from the original fabric rolls R1 and R2, the first optical member sheet F1 and the second optical member sheet F2 and the first surface of the plurality of liquid crystal panels P (one of the front surface and the back surface).
  • the second pasting is performed.
  • a second cutting device 16 that cuts out the single liquid crystal panel P and the second single-sided bonding panel P12 including the optical members F11 and F12 overlapping with the liquid crystal panel P from the sheet F22;
  • a strip-shaped third optical member sheet F3 having a width corresponding to the display region P4 in the component width direction is unwound from the third original fabric roll R3 together with the separator sheet SS to the second single-sided bonding panel P12.
  • the third optical member sheet F3 is unwound in a length corresponding to the display area P4, the third optical member sheet F3 is cut along the width direction, After the third optical member F13 having a size corresponding to the display region P4, the third optical member F13 is transferred to the second single-sided surface while transporting the plurality of third optical members F13 using the separator sheet SS as a carrier.
  • the 3rd bonding apparatus 18 bonded to the 2nd surface (The surface opposite to a 1st surface, the other surface among a surface and a back surface) of the said liquid crystal panel P in the bonding panel P12 is provided.
  • the third optical member F13 is formed by cutting the band-shaped third optical member sheet F3 having a width corresponding to the display region P4 into a predetermined length.
  • the third optical member F13 is bonded to the liquid crystal panel P in the line for performing the cut while conveying the separator sheet SS unwound together with the optical member sheet F3 as a carrier.
  • the dimensional variation and the bonding variation of the third optical member F13 are suppressed, and the frame portion G around the display region P4 is reduced.
  • the display area can be enlarged and the device can be downsized.
  • Reduction and reduction of tact time can be achieved.
  • the third bonding device 18 cuts the third optical member sheet F3 together with the separator sheet SS and the third optical member sheet F3.
  • the third optical member F13 in the unwinding direction of the third optical member sheet F3 than the cutting device 19c that forms the third optical member F13 and the cutting position for cutting the third optical member sheet F3.
  • a second detection camera 23 for detecting a cut line formed by the cut on the third optical member sheet F3 at a position spaced downstream by a distance corresponding to one; the downstream from the cut position; When the cut line is detected at a detection position separated by a distance corresponding to one third optical member F13, the cut line is set according to the position of the cut line.
  • a control unit 20 for adjusting the distance between the position and the detection position.
  • the third optical member F13 is unwound in the unwinding direction of the third optical member F13 by the second detection camera 23 that is located downstream from the cutting position of the third optical member sheet F3 by one third optical member F13.
  • the third optical member sheet F3 can be cut by the cutting device 19c, and the third optical member F13 having a specified length can be obtained.
  • the error can be corrected (absorbed) by the relative movement of the cutting device 19c based on the detection information of the second detection camera 23. For this reason, the precision of the length of the 3rd optical member F13 can be ensured, and it can respond also to cutting-out of the 3rd optical member F13 from which length differs.
  • the production method of the optical display device in the above embodiment is such that the liquid crystal panel P is aligned in the component width direction orthogonal to the conveyance direction of the optical display component PX with respect to the plurality of optical display components PX conveyed on the roller conveyor 5. While the strip-shaped optical member sheets F1 and F2 having a width larger than the width of the display region P4 are unwound from the raw rolls R1 and R2, the second optical member sheet F2 and the plurality of liquid crystal panels are placed on the first optical member sheet F1. The first surface of P is bonded together in order to form a second bonding sheet F22, and the facing portions of the optical member sheets F1 and F2 facing the display area P4 and the surplus portions located outside the facing portions are formed.
  • the second bonding sheet F2 is cut out.
  • the second single-sided bonding panel P12 including the single liquid crystal panel P and the optical members F11 and F12 overlapping therewith is cut out, and a plurality of the second single-sided bonding panels P12 conveyed on the roller conveyor 5
  • the belt-shaped third optical member sheet F3 having a width corresponding to the display area P4 in the component width direction is unwound together with the separator sheet SS from the third raw roll R3, and the third optical member sheet F3
  • a cut along the width direction is performed to obtain the third optical member F13 having a size corresponding to the display area P4, and then the separator.
  • 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.
  • 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
  • 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 processing machine similar to the second cutting device 16, and cuts the first optical member sheet F1 endlessly along a predetermined line outside the display region P4.
  • 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.
  • the third alignment device 17 ′ eliminates the 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. By having it, it is set as a comparatively simple structure. 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 '.
  • 3rd bonding apparatus 18 ' is the 1st conveyed below the lower surface of the elongate 3rd optical member sheet
  • 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 conveying apparatus 19' provided with the structure which reversed the position in which the said conveying apparatus 19 and the pinching roll 21 were provided, and the pinching roll 21 '.
  • seat F3 turns downward, and adhesion of foreign materials, such as a damage
  • this invention is not restricted to the said embodiment and modification,
  • FIG. Such a configuration will be described in the following second embodiment.
  • 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.
  • 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 (control unit) 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 from the start position to the end position of the laminating process using, for example, a driving roller conveyor 105 (line).
  • the liquid crystal panel P is conveyed on the roller conveyor 105 with the front and back surfaces thereof being leveled.
  • 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)
  • 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. 5 and 6).
  • 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.
  • the display area P4 is transported in a direction substantially along the transport direction.
  • 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 (primary bonding apparatus) 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, and the 1st bonding apparatus 112 and the 2nd alignment apparatus 114 provided in the panel conveyance downstream rather than the 1st cutting device 113.
  • FIG. 1st bonding apparatus 112 primary bonding apparatus
  • the film bonding system 101 is provided in the 2nd bonding apparatus 115 adjacent to the 2nd bonding apparatus 115 (primary bonding apparatus) provided in the panel conveyance downstream rather than the 2nd alignment apparatus 114, and the 2nd bonding apparatus 115.
  • a second cutting device 116 primary cutting device
  • a third alignment device 117 provided downstream of the second laminating device 115 and the second cutting device 116
  • the 3rd bonding apparatus 118 (secondary bonding apparatus) provided in is provided.
  • 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.
  • 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
  • the 1st bonding apparatus 112 unwinds the 1st optical member sheet
  • the conveyance apparatus 112a conveyed along a longitudinal direction, 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
  • the transport device 112a 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 of the first optical member sheet F1.
  • a pf collection unit 112d that collects the protection film pf fed together with the first optical member sheet F1 on the upper surface of the first optical member sheet F1 on the downstream side of the first conveying apparatus 112 on the panel transport side.
  • 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.
  • 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
  • 1st cutting device 113 is located in the panel conveyance downstream rather than pf collection part 112d. 4 and 5 together, the first cutting device 113 cuts the first optical member sheet F1 of the first bonding sheet F21 and is larger than the display area P4 (in this embodiment, from the liquid crystal panel P). Is larger) a predetermined portion (between the liquid crystal panels P arranged in the transport direction) of the first optical member sheet F1 is cut over the entire width in the component width direction so as to obtain a sheet piece F1S. It does not matter whether the first cutting device 113 uses a cutting blade or a laser cutter. By the said cutting
  • 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.
  • 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.
  • the said rotation is made
  • 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
  • the 2nd bonding apparatus 115 unwinds the 2nd optical member sheet
  • a conveying device 115a that conveys along the longitudinal direction, and a pressure roll 115b that bonds the upper surface of the first single-sided bonding panel P11 that the roller conveyor 105 conveys to the lower surface of the second optical member sheet F2 that the conveying device 115a conveys.
  • the transport device 115a holds the second original roll R2 around which the second optical member sheet F2 is wound, and rolls out the second optical member sheet F2 along the longitudinal direction of the second optical member sheet F2. And a second recovery part 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 from the pinching roll 115b.
  • 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
  • the 2nd cutting device 116 is located in the panel conveyance downstream rather than the pinching roll 115b. 14 and 5 together, the second cutting device 116 includes the second optical member sheet F2 and the sheet piece F1S of the first optical member sheet F1 of the first single-sided bonding panel P11 bonded to the lower surface thereof. Disconnect at the same time.
  • the second cutting device 116 has the same configuration as the second cutting device 16 of the first embodiment.
  • the first and second optical members F11 and F12 are overlapped and bonded to the upper surface of the liquid crystal panel P (see FIG. 7) to form a second single-sided bonding panel P12.
  • 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
  • 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.
  • 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.
  • alignment similar to that of the first and second alignment devices 111 and 114 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 3rd optical member sheet
  • a transport device 119 that transports the sheet SS while unwinding and feeds the third optical member F13 from the third optical member sheet F3 to the bonding position, and a third transport device 119 cuts out from the third optical member sheet F3.
  • the pressure roller 121 is bonded to the upper surface (the display surface side of the liquid crystal panel P) of the second single-sided bonding panel P12 that the roller conveyor 105 conveys the lower surface of the optical member F13.
  • the transport device 119 continuously transports the plurality of third optical members F13 using the separator sheet SS as a carrier, similarly to the transport device 19 of the first embodiment.
  • the transport device 119 holds the third original fabric roll R3 and rolls out the third optical member sheet F3S from the third original fabric roll R3 along the longitudinal direction of the third optical member sheet F3S.
  • 119a (unwinding part) and the third optical member sheet F3S unwound from the third original fabric roll R3 are guided to the bonding position of the third bonding apparatus 118 along the predetermined sheet conveying path.
  • a cutting device 119c (cut portion) that performs cutting and a separator sheet SS side of the third optical member sheet F3S that has been half-cut are wound around an acute angle to set the A knife edge 119d for supplying the third optical member F13 to the bonding position while separating the third optical member F13 from the separator sheet SS;
  • the roll holding unit 119a positioned at the start point of the transport device 119 and the separator recovery unit 119e positioned at the end point of the transport device 119 are driven in synchronization with each other, for example.
  • the separator holding unit 119e unwinds the third optical member sheet body F3S in the conveying direction of the third optical member sheet body F3S, and the separator recovery unit 119e becomes a single separator sheet SS via the knife edge 119d. Wind up.
  • the cutting device 119c When the third optical member sheet body F3S is unwound by a predetermined length, the cutting device 119c has a width orthogonal to the longitudinal direction (unwinding direction) of the third optical member sheet body F3S.
  • the separator sheet SS is cut over the entire width in the direction (that is, only the third optical member sheet F3 is cut).
  • the cutting device 119c adjusts the advancing / retreating position of the cutting blade so that the separator sheet SS is not broken by the tension acting during the conveyance of the third optical member sheet body F3S.
  • a cut line that extends over the entire width in the width direction of the third optical member sheet body F3S is formed.
  • the upstream side of the panel conveyance is cut downstream in the unwinding direction of the third optical member F13 at the position.
  • a first detection camera 122 for detecting the end is provided. Detection information of the first detection camera 122 is sent to the control device 120. For example, when the first detection camera 122 detects the downstream end of the third optical member F13, the control device 120 temporarily stops the transport device 119.
  • the control apparatus 120 drives the conveying apparatus 119, 2nd single-sided bonding panel P12, the 3rd optical member F13, Can be synchronized and introduced into the bonding position of the third bonding apparatus 118.
  • the third optical member F13 is similarly wound on the upstream side of the first detection camera 122 in the unwinding direction and downstream of the cutting device 119c by one third optical member F13.
  • a second detection camera 123 that detects a cut end on the downstream side in the ejection direction is provided. Detection information of the second detection camera 123 is also sent to the control device 120. For example, after the third optical member sheet F3 is cut by the cutting device 119c, the control device 120 unwinds the third optical member sheet F3, and the second detection camera 123 detects the cut end (the cut line on the most upstream side of the third optical member sheet F3). At this point, the transfer device 119 is temporarily stopped.
  • the third optical member sheet F3 is cut by the cutting device 119c. That is, the detection position by the second detection camera 123 (corresponding to the optical axis extension position of the second detection camera 123 in the third optical member sheet F3) and the cut position by the cutting device 119c (of the cutting device 119c in the third optical member sheet F3). (Corresponding to the cutting blade advance / retreat position) along the sheet conveyance path corresponds to the length of the third optical member F13.
  • the cutting device 119c is movable along the sheet conveyance path of the third optical member sheet body F3S. By this movement, the distance along the sheet conveyance path between the detection position by the second detection camera 123 and the cutting position by the cutting device 119c varies.
  • the movement of the cutting device 119c is controlled by the control device 120. For example, when the third optical member sheet F3 is unwound by one piece after the third optical member sheet F3 is cut by the cutting device 119c, the cut end is moved from a predetermined position. In the case of deviation, this deviation is corrected by the movement of the cutting device 119c.
  • the correction or the length change of the third optical member F13 may be performed by moving at least one of the cutting device 119c and the second detection camera 123 in the sheet conveyance direction.
  • the cutting device 119c and the second detection camera 123 are close to each other, in order to prevent vibration of the second detection camera 123 accompanying the movement of the cutting device 119c, it is preferable to support them with separate frames.
  • the knife edge 119d is disposed above the roller conveyor 105 and extends at least over its entire width in the width direction of the third optical member sheet body F3S.
  • the knife edge 119d is wound at an acute angle so as to be in sliding contact with the separator sheet SS side of the third optical member sheet body F3S after the half cut.
  • the third optical member sheet F3S separates the third optical member F13 from the separator sheet SS when it is folded at an acute angle by the knife edge 119d.
  • the knife edge 119d is disposed close to the panel conveyance downstream side of the pinching roll 121.
  • the third optical member F13 separated from the separator sheet SS by the knife edge 119d is introduced between the pair of bonding rollers of the pinching roll 121 while overlapping the upper surface of the liquid crystal panel P conveyed by the roller conveyor 105.
  • the pinching roll 121 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 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 F13 are introduced overlapping each other. These 2nd single-sided bonding panels P12 and the 3rd optical member F13 are sent out to a panel conveyance downstream, being pinched between the said bonding rollers. Thereby, the double-sided bonding panel P13 which bonded the 3rd optical member F13 to the 2nd single-sided bonding panel P12 is formed (refer FIG. 7).
  • the double-sided bonding panel P13 is transported to a downstream process after being inspected for defects (such as poor bonding) through a defect inspection device (not shown). Processing is done.
  • 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.
  • seat F1, F2, F3 is wound up after test
  • the optical display 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 a relatively wide optical member sheet FX in the width direction.
  • the present invention is not limited thereto, and two or less or four or more optical displays are displayed. It is a configuration in which the parts PX are arranged and bonded in the width direction of the optical member sheet FX, or a plurality of relatively narrow optical member sheets FX are arranged in the width direction and the optical display components PX are bonded to each of them. May be.
  • the second cutting device 116 detects the outer peripheral edge of the display area P4 with a detection unit such as a camera 116a, and the first and second optical member sheets F1 along the outer peripheral edge of the display area P4. , F2 is cut.
  • 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.
  • the frame is cut by the second cutting device 116 within the width of the frame portion G. Laser cut is made.
  • seat F3 which has the width
  • the 3rd bonding apparatus 118 is bonded to the 2nd single-sided bonding panel P12 within the line which performs the said cut, conveying this 3rd optical member F13 with separator sheet SS. For this reason, compared with the case where the polarizing plate processed according to the display area P4 is conveyed to another line, the influence of the dimensional variation of the 3rd optical member F13 and bonding variation is suppressed.
  • a laser cut start point pt1 is set on the extension of one long side of the display region 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.
  • 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.
  • a plurality of optical display components PX 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 optical display components PX.
  • the optical member sheets F1 and F2 are unwound from the original rolls R1 and R2, and the second optical member sheet F2 and the first surfaces of the plurality of liquid crystal panels P are sequentially bonded to the first optical member sheet F1.
  • the bonding devices 112 and 115 as the bonding sheet F22, the facing portions of the optical member sheets F1 and F2 facing the display area P4, and the pair The excess part located outside the part is cut off, and the optical members F11 and F12 having a size corresponding to the display area P4 are cut out from the optical member sheets F1 and F2, so that they are simply removed from the second bonding sheet F22.
  • a strip-shaped third optical member sheet F3 having a width corresponding to the display region P4 in the component width direction is unwound from the third raw roll R3 together with the separator sheet SS to the panel P12.
  • F3 is cut along the width direction every time the third optical member sheet F3 is unwound with a length corresponding to the display area P4, and the display area P
  • the plurality of third optical members F13 are conveyed using the separator sheet SS as a carrier, and the third optical member F13 is the second single-sided bonding panel.
  • the bonding devices 112 and 115 convey the optical member sheets F1 and F2 so that the bonding surfaces of the optical member sheets F1 and F2 to be combined face downward, and the third optical member sheet F3 and the second optical member sheet F3 and the second optical member sheet F3.
  • the third bonding device 118 is in front so that the bonding surface with the second single-sided bonding panel P12 of the third optical member sheet F3 faces downward.
  • the third optical member sheet F3 is conveyed.
  • the third optical member F13 is formed by cutting the band-shaped third optical member sheet F3 having a width corresponding to the display region P4 into a predetermined length.
  • the third optical member sheet F3 is bonded to the liquid crystal panel P in the line for performing the cutting while the separator sheet SS unwound together with the optical member sheet F3 is conveyed as a carrier. For this reason, compared with the case where the polarizing plate processed according to the display region P4 is conveyed to another line, the dimensional variation and the bonding variation of the third optical member F13 are suppressed, and the frame portion G around the display region P4 is reduced. By reducing the size, the display area can be enlarged and the device can be downsized.
  • the tact time can be shortened.
  • seat FX is conveyed so that the bonding surface by the side of the adhesion layer may face downward at the bonding position with the optical display component PX, and the bonding surface of the optical member sheet FX is damaged or foreign matter. Can be suppressed and the occurrence of poor bonding 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 both the front surface and the back surface from above.
  • the third laminating apparatus 118 cuts the third optical member sheet F3 together with the separator sheet SS into the roll holding unit 119a and the third optical member sheet F3.
  • the third optical member F13 in the unwinding direction of the third optical member sheet F3 than the cutting device 119c that performs the third optical member F13 and the cutting position for cutting the third optical member sheet F3.
  • a second detection camera 123 for detecting a cut line formed by the cut in the third optical member sheet F3 at a position spaced downstream by a distance corresponding to one; and from the cut position to the downstream side. When the cut line is detected at a detection position separated by a distance corresponding to one third optical member F13, the position of the cut line is changed.
  • a control unit 120 for adjusting the distance between the detection position and the cutting position Te.
  • the third optical member F13 is unwound in the unwinding direction of the third optical member F13 by the second detection camera 123 that is located downstream from the cutting position of the third optical member sheet F3 by one third optical member F13.
  • the third optical member sheet F3 can be cut by the cutting device 119c, and the third optical member F13 having a specified length can be obtained.
  • the error can be corrected (absorbed) by the relative movement of the cutting device 119c based on the detection information of the second detection camera 123. For this reason, the precision of the length of the 3rd optical member F13 can be ensured, and it can respond also to cutting out of the 3rd optical member F13 from which length differs.
  • the production method of the optical display device in the above embodiment is such that the liquid crystal panel P is aligned in the component width direction orthogonal to the conveyance direction of the optical display component PX with respect to the plurality of optical display components PX conveyed on the roller conveyor 105. While the strip-shaped optical member sheets F1 and F2 having a width larger than the width of the display region P4 are unwound from the raw rolls R1 and R2, the second optical member sheet F2 and the plurality of liquid crystal panels are placed on the first optical member sheet F1. The first surface of P is bonded together in order to form a second bonding sheet F22, and the facing portions of the optical member sheets F1 and F2 facing the display area P4 and the surplus portions located outside the facing portions are formed.
  • the second bonding sheet. 22 cut out the second single-sided bonding panel P12 including the single liquid crystal panel P and the optical members F11 and F12 overlapping therewith, and the plurality of second single-sided bonding panels P12 conveyed on the roller conveyor 105.
  • a strip-shaped third optical member sheet F3 having a width corresponding to the display region P4 in the component width direction is unwound together with the separator sheet SS from the third raw roll R3, and this third optical member sheet F3 is Each time the third optical member sheet F3 is unwound with a length corresponding to the display area P4, a cut along the width direction is performed to obtain a third optical member F13 having a size corresponding to the display area P4. While transporting the plurality of third optical members F13 using the separator sheet SS as a carrier, the third optical member F13 is placed on the second single-sided bonding panel P12.
  • FIG. 17 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.
  • 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
  • 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 cutting device 116, and cuts the first optical member sheet F1 endlessly along a predetermined line outside the display region P4.
  • this invention is not restricted to the said embodiment and modification,
  • the structure of the 1st and 2nd bonding apparatuses 112 and 115 may be the same as the structure of the 3rd bonding apparatus 118, for example.
  • 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.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention porte sur un système de fabrication d'un dispositif d'affichage optique qui est un système de fabrication d'un dispositif d'affichage optique qui lie un matériau optique à un composant d'affichage optique et qui comporte un dispositif de liaison primaire qui lie une première surface d'une pluralité de composants d'affichage optiques à la feuille de matériau optique primaire tout en déroulant une feuille optique primaire en forme de bande à partir d'un rouleau entier primaire, la feuille ayant une largeur plus importante que la largeur de la région d'affichage d'un composant d'affichage optique dans la direction de la largeur du composant perpendiculaire à la direction de transport des composants d'affichage optiques pour une pluralité de composants d'affichage optiques transportés sur une ligne ; un dispositif de coupe primaire qui coupe un corps de liaison optique primaire qui comprend un unique composant d'affichage optique et le matériau optique primaire chevauchant l'unique composant d'affichage optique à partir d'une feuille de liaison par découpe de la partie opposée à la feuille de composant optique primaire dirigée vers la région d'affichage et de la partie restante positionnée sur l'extérieur de la partie opposée, et découpe du matériau optique primaire comme matériau optique ayant une dimension correspondant à la région d'affichage à partir de la feuille de composant optique primaire ; et un dispositif de liaison secondaire qui lie des parties optiques secondaires aux secondes surfaces des composants d'affichage optiques dans la partie de liaison du matériau de liaison optique primaire tout en transportant la pluralité de matériaux optiques secondaires avec une feuille de séparateur en tant que porteur après que la feuille de composant optique secondaire en forme de bande ayant une largeur correspondant à la région d'affichage dans la direction de la largeur d'un composant pour une pluralité de corps de liaison de parties optiques primaires transportées sur la ligne est enroulée conjointement à la feuille de séparateur à partir du rouleau entier secondaire ; la découpe est réalisée le long de la direction de la largeur chaque fois que la feuille de composant optique secondaire est déroulée d'une longueur correspondant à la région d'affichage dans la feuille de composant optique secondaire ; et les matériaux optiques secondaires sont formés en tant que parties optiques ayant des dimensions correspondant à celles de la région d'affichage.
PCT/JP2012/081087 2011-11-30 2012-11-30 Système de fabrication de dispositif d'affichage optique et procédé de fabrication associé WO2013081105A1 (fr)

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KR1020147010868A KR102010102B1 (ko) 2011-11-30 2012-11-30 광학 표시 디바이스의 생산 시스템 및 생산 방법
CN201280053622.XA CN103907051B (zh) 2011-11-30 2012-11-30 光学显示设备的生产系统以及生产方法

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KR101597397B1 (ko) * 2013-07-23 2016-02-24 엘지전자 주식회사 필름 부착 시스템
KR101817388B1 (ko) 2014-09-30 2018-01-10 주식회사 엘지화학 편광판의 절단 방법 및 이를 이용하여 절단된 편광판
JP6634360B2 (ja) * 2016-11-01 2020-01-22 日東電工株式会社 光学的表示装置の積層体、その製造方法および製造システム
JP6619784B2 (ja) 2017-09-28 2019-12-11 日東電工株式会社 光学的表示装置の積層体を製造する方法
JP6619785B2 (ja) 2017-09-28 2019-12-11 日東電工株式会社 光学的表示装置の積層体を製造する方法
JP7389703B2 (ja) 2019-12-25 2023-11-30 住友化学株式会社 積層体の製造方法、及び、貼合装置

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JP4855493B2 (ja) * 2008-04-14 2012-01-18 日東電工株式会社 光学表示装置製造システム及び光学表示装置製造方法
JP4503693B1 (ja) * 2009-10-13 2010-07-14 日東電工株式会社 連続ウェブ形態の切込線入り光学フィルム積層体の連続ロール並びにその製造方法及び製造装置

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JP2007078978A (ja) * 2005-09-13 2007-03-29 Nitto Denko Corp 枚葉体からのセパレータ剥離方法および積層光学フィルムの製造方法並びにこれらを用いた製造装置
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JP4676026B1 (ja) * 2010-09-17 2011-04-27 日東電工株式会社 液晶表示素子の製造システム及び製造方法

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CN103907051A (zh) 2014-07-02
JP5429837B2 (ja) 2014-02-26
JP2013137538A (ja) 2013-07-11
TW201345819A (zh) 2013-11-16
CN103907051B (zh) 2017-07-14
TWI614200B (zh) 2018-02-11

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