WO2013077348A1 - Système de fabrication de stratifié pour élément optique, procédé de fabrication et support d'enregistrement - Google Patents

Système de fabrication de stratifié pour élément optique, procédé de fabrication et support d'enregistrement Download PDF

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Publication number
WO2013077348A1
WO2013077348A1 PCT/JP2012/080144 JP2012080144W WO2013077348A1 WO 2013077348 A1 WO2013077348 A1 WO 2013077348A1 JP 2012080144 W JP2012080144 W JP 2012080144W WO 2013077348 A1 WO2013077348 A1 WO 2013077348A1
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WO
WIPO (PCT)
Prior art keywords
optical
optical member
member sheet
display component
bonding
Prior art date
Application number
PCT/JP2012/080144
Other languages
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.)
Filing date
Publication date
Application filed by 住友化学株式会社 filed Critical 住友化学株式会社
Priority to KR1020137025566A priority Critical patent/KR101493187B1/ko
Priority to CN201280016838.9A priority patent/CN103460268B/zh
Publication of WO2013077348A1 publication Critical patent/WO2013077348A1/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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • 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
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components

Definitions

  • the present invention relates to a manufacturing system, a manufacturing method, and a recording medium for an optical member bonded body formed by bonding an optical member to an optical display component.
  • optical display devices such as liquid crystal displays
  • an optical member such as a polarizing plate to be bonded to a liquid crystal panel (optical display component) is cut out from a long film into a sheet piece having a size that matches the display area of the liquid crystal panel. Thereafter, the optical member is bonded to the liquid crystal panel (see, for example, Patent Document 1).
  • the long film is produced by stretching a resin film impregnated with a dichroic dye in one direction.
  • the direction of the optical axis of the long film substantially coincides with the stretching direction of the resin film. Therefore, conventionally, the cutting angle of the long film is set based on the stretching direction.
  • the optical axis of the long film is not uniform throughout the long film, and varies slightly within the surface of the long film. Therefore, when the polarizing plate (optical member) is cut out from the long film, the optical axis of the cut polarizing plate may be displaced due to the variation of the optical axis in the plane of the long film.
  • the above-described variation of the optical axis can occur similarly when a film-like optical member is bonded to an optical display component. Therefore, there is a demand for improvement in accuracy in the optical axis direction of the optical member with respect to the optical display component.
  • This invention is made
  • 1st aspect of this invention determines the relative bonding position of the said optical display component and the said optical member sheet
  • An alignment device that aligns the optical display component with respect to the optical member sheet based on a control device, a relative bonding position determined by the control device, and the optical member that is aligned by the alignment device.
  • a bonding device for bonding sheets; a region of the optical member sheet bonded by the bonding device; a first region facing the display region of the optical display component; and the first of the optical member sheet It is a manufacturing system of an optical member pasting object provided with the cutting device which cuts off the 2nd field which is the field outside the field.
  • the “first region (a portion facing the display region)” in the above configuration is a region that is not less than the size of the display region and not more than the size of the outer shape of the optical display component, such as an electrical component mounting portion. Indicates the area where the functional part is avoided. 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 said cutting device cuts out the said optical member sheet
  • the said control apparatus is the said relative bonding position so that the reference axis of the said optical display component and the optical axis direction of the said optical member sheet
  • control device may use a longitudinal axis passing through the center of the plane of the optical display component as the reference axis.
  • the said alignment apparatus aligns the said optical display component so that the said optical member sheet
  • the alignment device is configured to move the optical display component in a direction perpendicular to the conveyance direction of the optical display component by the first conveyance device, and to convey the optical display component by the first conveyance device.
  • the optical display component may be transported to the relative bonding position by rotation around a vertical axis.
  • the said alignment apparatus performs the alignment of the said optical display component with respect to the said optical member sheet
  • the said bonding apparatus may use the area
  • the cutting device may cut the optical member sheet using a laser.
  • the imaging device which images the position of the said optical display component is further provided,
  • the said control apparatus is based on the said test
  • the relative bonding position may be determined.
  • 1st aspect of this invention WHEREIN: You may further provide the 1st conveying apparatus which conveys the said optical display component in order of the said alignment apparatus, the said bonding apparatus, and the said cutting apparatus.
  • WHEREIN You may further provide the 2nd conveying apparatus which conveys the said optical member sheet
  • the second transport device may include a recovery unit that recovers the surplus portion separated by the cutting device.
  • the second aspect of the present invention determines a relative bonding position between the optical display component and the optical member sheet based on inspection data indicating an optical axis direction of the optical member sheet that is larger than the display area of the optical display component. Based on the determined relative bonding position, the optical display component is aligned with the optical member sheet, the optical member sheet is bonded to the aligned optical display component, and the optical member sheet is bonded. It is a manufacturing method of the optical member bonding body which isolate
  • the relative bonding position between the optical display component and the optical member sheet is determined based on inspection data indicating the optical axis direction of the optical member sheet that is larger than the display area of the optical display component. Based on the determined relative bonding position, the optical display component is aligned with the optical member sheet, the optical member sheet is bonded to the aligned optical display component, and the optical member sheet is bonded.
  • this invention bonds the optical member sheet
  • the relative bonding position between the optical display component and the optical member sheet is determined based on inspection data in the optical axis direction of the optical member sheet.
  • the optical member sheet After the optical member sheet is bonded to the part, a portion facing the display area of the optical member sheet and a surplus portion outside thereof are separated, and the front A step of cutting out the optical member bonded body including the single optical display component and the optical member overlapping therewith from the bonding sheet by cutting out the optical member having a size corresponding to the display area from the optical member sheet. It is characterized by including.
  • the optical member sheet is bonded to the optical display component.
  • the optical display component can be aligned according to the optical axis direction and bonded to the optical member sheet.
  • the precision of the optical axis direction of the optical member with respect to an optical display component can be improved.
  • it can respond also to manufacture of the optical member bonding body which has arbitrary optical axis directions.
  • FIG. 7 is a cross-sectional view taken along the line AA in FIG. 6.
  • This embodiment demonstrates the film bonding system containing the manufacturing apparatus of an optical member bonding body.
  • 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 as an electronic control device.
  • the film bonding system 1 sequentially performs a predetermined process on the liquid crystal panel P while transporting the liquid crystal panel P from the start position to the final position of the bonding process using, for example, a driving roller conveyor 5.
  • the liquid crystal panel P is conveyed on the roller conveyor 5 with its front and back surfaces being horizontal.
  • the left side of FIG. 1 shows 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 of FIG. 1 shows the downstream side of the liquid crystal panel P in the transport direction (hereinafter referred to as the panel transport downstream side).
  • the upper side of the liquid crystal panel P on the paper surface indicates the display surface side
  • the lower surface of the paper surface indicates the backlight side.
  • the liquid crystal panel P has a rectangular shape in plan view (see FIG. 6).
  • a display region P4 having an outer shape along the outer peripheral edge is formed on the inner side of the outer peripheral edge of the liquid crystal panel P by a predetermined width (see FIG. 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 14 described later.
  • the liquid crystal panel P is transported in a direction in which the long side of the display region P4 is generally along the transport direction on the downstream side of the panel transport from the second alignment device 14.
  • First, second, and third optical members F11, F12, and F13 cut out from the long, strip-like first, second, and third optical member sheets F1, F2, and F3 with respect to the front and back surfaces of the liquid crystal panel P are provided.
  • the liquid crystal panel P is appropriately bonded (see FIG. 8).
  • the 1st optical member F11 and the 3rd optical member F13 as a polarizing film are each bonded on both the backlight side and display surface side of liquid crystal panel P (refer FIG. 8).
  • a second optical member F12 as a brightness enhancement film is further bonded to the first optical member F11 (see FIG. 8).
  • the film bonding system 1 includes a first alignment device 11, a first bonding device 12, a first cutting device 13, and a second alignment device 14.
  • the first alignment device 11 conveys the liquid crystal panel P from the upstream process to the panel conveyance upstream side of the roller conveyor 5 and aligns the liquid crystal panel P.
  • the 1st bonding apparatus 12 is provided in a panel conveyance downstream rather than the 1st alignment apparatus 11.
  • FIG. The first cutting device 13 is provided in the vicinity of the first bonding device 12.
  • the 2nd alignment apparatus 14 is provided in a panel conveyance downstream rather than the 1st bonding apparatus 12 and the 1st cutting device 13.
  • the film bonding system 1 includes a second bonding device 15, a second cutting device 16, a third alignment device 17, a third bonding device 18, and a third cutting device 19.
  • the 2nd bonding apparatus 15 is provided in a panel conveyance downstream rather than the 2nd alignment apparatus 14.
  • FIG. The second cutting device 16 is provided in the vicinity of the second bonding device 15.
  • the 3rd alignment apparatus 17 is provided in a panel conveyance downstream rather than the 2nd bonding apparatus 15 and the 2nd cutting device 16.
  • the 3rd bonding apparatus 18 is provided in a panel conveyance downstream rather than the 3rd alignment apparatus 17.
  • the third cutting device 19 is provided close to the third bonding device 18.
  • the first alignment device 11 holds the liquid crystal panel P and freely conveys it in the vertical direction and the horizontal direction. Further, the first alignment device 11 has a pair of cameras C that image the upstream and downstream ends of the liquid crystal panel P (see FIG. 3). The imaging data of the camera C is sent to the control device 20. The control device 20 operates the first alignment device 11 based on the imaging data and inspection data stored in the optical axis direction, which will be described later. Note that second and third alignment devices 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 is provided with the conveying apparatus 12a and the pinching roll 12b.
  • the conveying apparatus 12a conveys the 1st optical member sheet
  • the pinching roll 12b bonds the lower surface of the liquid crystal panel P conveyed by the roller conveyor 5 to the upper surface of the first optical member sheet F1 conveyed by the conveying device 12a.
  • the transport device 12a includes a roll holding unit 12c and a pf collection unit 12d.
  • the roll holding unit 12c holds the first original roll R1 around which the first optical member sheet F1 is wound, and feeds the first optical member sheet F1 along the longitudinal direction thereof.
  • the pf collection unit 12d collects the protection film pf which is overlapped on the lower surface of the first optical member sheet F1 and is fed out together with 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 upper side of the liquid crystal panel P on the paper surface indicates the backlight side
  • the lower surface of the paper surface indicates the display surface side.
  • the 1st cutting device 13 is located in the panel conveyance downstream rather than pf collection
  • the first cutting device 13 cuts a predetermined portion (between the liquid crystal panels P arranged in the transport direction) of the first optical member sheet F1 over the entire width in the component width direction. Thereby, the 1st cutting device 13 cut
  • the first cutting device 13 may use 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 P11 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 is provided with the conveying apparatus 15a and the pinching roll 15b.
  • the conveying device 15a conveys the second optical member sheet F2 along the longitudinal direction while unwinding the second optical member sheet F2 from the second original roll R2 around which the second optical member sheet F2 is wound.
  • the pinching roll 15b bonds the lower surface of the 1st single-sided bonding panel P11 which the roller conveyor 5 conveys to the upper surface of the 2nd optical member sheet
  • the transport device 15a includes a roll holding unit 15c and a second recovery unit 15d.
  • the roll holding unit 15c holds the second original fabric roll R2 around which the second optical member sheet F2 is wound, and feeds the second optical member sheet F2 along its longitudinal direction.
  • the second collection unit 15d collects an excess portion of the second optical member sheet F2 that has passed through the second cutting device 16 that is located on the downstream side of the panel conveyance with respect to 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 is, for example, a CO2 laser cutter.
  • the second cutting device 16 moves the second optical member sheet F2 and the sheet piece F1S of the first optical member sheet F1 along the outer peripheral edge of the display region P4 (in this embodiment, along the outer peripheral edge of the liquid crystal panel P). Cut endlessly.
  • the accuracy in the optical axis direction of the optical member sheets F1 and F2 is increased. Further, there is no deviation in the optical axis direction between the optical member sheets F1 and F2. Furthermore, 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 is formed (refer FIG. 7).
  • the opposing part (each optical member F11, F12) of 2nd single-sided bonding panel P12 and display area P4 is cut off, and the excess 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. This surplus portion is wound around the second recovery portion 15d together with the surplus portion of the first optical member sheet F1.
  • the “opposite part of the display area P4” is an area that is not less than the size of the display area P4 and not more than the size of the outer shape of the liquid crystal panel P, and avoids a functional part such as an electrical component mounting portion. Indicates the area.
  • the surplus portion is laser-cut along the outer peripheral edge of the liquid crystal panel P, and in one side corresponding to the functional portion, the liquid crystal The surplus portion is laser-cut at a position that appropriately enters the display region P4 side from the outer peripheral edge of the panel P.
  • the third alignment device 17 inverts the second single-sided bonding panel P12 with the display surface side of the liquid crystal panel P as the upper surface so that the backlight side of the liquid crystal panel P is the upper surface.
  • the third alignment device 17 performs the same alignment as the first and second alignment devices 11 and 14. 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 rotational direction. In this state, the second single-sided bonding panel P ⁇ b> 12 is introduced into the bonding position of the third bonding device 18.
  • the 3rd bonding apparatus 18 is the lower surface (of liquid crystal panel P of 2nd single-sided bonding panel P12 conveyed above that with respect to the upper surface of the elongate 3rd optical member sheet
  • the 3rd bonding apparatus 18 is provided with the conveying apparatus 18a and the pinching roll 18b.
  • the conveying device 18a conveys the third optical member sheet F3 along the longitudinal direction while unwinding the third optical member sheet F3 from the third original roll R3 around which the third optical member sheet F3 is wound.
  • the pinching roll 18b bonds the lower surface of the second single-sided bonding panel P12 conveyed by the roller conveyor 5 to the upper surface of the third optical member sheet F3 conveyed by the conveying device 18a.
  • the transport device 18a includes a roll holding unit 18c and a third recovery unit 18d.
  • the roll holding portion 18c holds the third original fabric roll R3 around which the third optical member sheet F3 is wound, and feeds the third optical member sheet F3 along its longitudinal direction.
  • the third recovery unit 18d recovers the surplus portion of the third optical member sheet F3 that has passed through the third cutting device 19 located on the downstream side of the panel conveyance with respect to the pinching roll 18b.
  • the pinching roll 18b has a pair of laminating rollers arranged in parallel with each other in the axial direction. A predetermined gap is formed between the pair of bonding rollers, and the gap is the bonding position of the third bonding device 18.
  • the second single-sided bonding panel P12 and the third optical member sheet F3 are overlapped and introduced.
  • seat F3 are sent out to a panel conveyance downstream, being pinched between the said bonding rollers. Thereby, the 3rd bonding sheet
  • 3rd cutting device 19 is located in the panel conveyance downstream rather than pinching roll 18b, and cuts 3rd optical member sheet
  • the third cutting device 19 is a laser processing machine similar to the second cutting device 16, and the third optical member sheet F3 is endless along the outer peripheral edge of the display region P4 (for example, along the outer peripheral edge of the liquid crystal panel P). Disconnect.
  • the double-sided bonding panel P13 by which the 3rd optical member F13 was bonded to the lower surface of the 2nd single-sided bonding panel P12 is formed (refer FIG. 8).
  • the opposing part (3rd optical member F13) of double-sided bonding panel P13 and the display area P4 is cut off, and the surplus part of the 3rd optical member sheet
  • seat F3 is continued in multiple numbers similarly to the excessive part of the 2nd optical member sheet
  • 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
  • An inspection apparatus for inspecting the optical axis direction of an optical film includes a light source and an analyzer.
  • the light source is disposed on one side of the front and back of the optical film.
  • the analyzer is disposed on the other side of the optical film.
  • 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 move in the width direction of the optical film, for example.
  • the inspection apparatus detects the optical axis of the optical film with the analyzer while moving the analyzer in the width direction of the optical film. Accordingly, the inspection apparatus inspects the optical axis of the optical film at a plurality of inspection positions in the width direction of the optical film.
  • the structure provided with the several analyzer in the width direction of an optical film may be sufficient instead of the structure which moves the said analyzer in the width direction of an optical film.
  • a plurality of inspection points are set in the width direction of the optical film, and the analyzer is movable along the arrangement direction of the plurality of inspection points.
  • the inspection apparatus moves the analyzer while conveying the optical film, and inspects the direction of the optical axis at each inspection point.
  • Data on the optical axis of the optical film detected by the inspection apparatus is stored in the storage device in association with the position of the optical film (the position in the longitudinal direction and the position in the width direction of the optical film).
  • the optical film inspected by the inspection apparatus is wound into a roll to form a raw roll.
  • the inspection data indicating the optical axis direction of each of the optical member sheets F1, F2, and F3 obtained by the inspection apparatus is the longitudinal direction position and the width direction position of each optical member sheet F1, F2, and F3. It is associated 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 member PX. There are things to do.
  • the polarizer film constituting the optical member sheet FX is formed, for example, by uniaxially stretching a PVA film dyed with a dichroic dye.
  • the polarizer film has a difference in the optical axis direction between the inner side in the width direction and the outer side in the width direction of the optical member sheet FX due to uneven thickness of the PVA film when stretched, uneven coloring of the dichroic dye, and the like. Tend to occur.
  • the bonding position of the optical display component PX with respect to the optical member sheet FX (relative bonding) Position). And in this embodiment, after aligning the optical display component PX with respect to the optical member sheet
  • a reference axis for example, a longitudinal axis passing through the center position of the planar view shape
  • the direction of the optical axis at the position overlapping the reference axis of the optical display component PX in the optical member sheet FX is estimated from the in-plane distribution data by appropriately performing a complementing process or the like.
  • the bonding position of the optical display component PX is corrected, and the relative bonding position between the optical display component PX and the optical member sheet FX is determined. Thereafter, alignment of the optical display component PX is performed.
  • the optical axis tolerance can be substantially 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 °, but can be applied to any angle.
  • FIG. 3 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 to this, and two or less or four or more optical display components PX may be arranged and bonded in the width direction of the optical member sheet FX.
  • the liquid crystal panel P includes a first substrate P1, a second substrate P2, and a liquid crystal layer P3.
  • the first substrate P1 is a rectangular substrate made of, for example, a TFT substrate.
  • the second substrate P2 is a rectangular substrate disposed to face the first substrate P1.
  • the liquid crystal layer P3 is sealed between the first substrate P1 and 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 the three outer peripheral edges along the corresponding three sides of the second substrate P2, and the remaining one side of the outer peripheral edge protrudes outward from the corresponding one side of the second substrate P2.
  • 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 cuts the first and second optical member sheets F1 and F2 along the outer peripheral edge and the like of the display area P4 while detecting the outer peripheral edge of the display area P4 by a detection unit such as a camera 16a.
  • the third cutting device 19 cuts the third optical member sheet F3 along the outer peripheral edge and the like of the display region P4 while detecting the outer peripheral edge of the display region P4 by a detection unit such as a camera 19a.
  • a frame portion G having a predetermined width for arranging a sealing agent or the like for joining the first and second substrates P1 and P2 is provided. Laser cutting is performed by the cutting devices 16 and 19 within the width of the frame portion G.
  • the cut end t may swell or wave 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 optical member sheet FX is laser-cut.
  • the cut end t of the optical member sheet FX is backed up on the glass surface of the liquid crystal panel P. Therefore, the cut end t of the optical member sheet FX is not swollen or undulated, and the bonding failure cannot occur because it is after bonding to the liquid crystal panel P.
  • the deflection width (tolerance) of the cutting line of the laser processing machine is smaller than that 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. Further, the liquid crystal panel P can be reduced in size and / or the display area P4 can be increased in size. This is effective for application to high-function mobile devices that require expansion of the display screen while the size of the housing is limited, such as smartphones and tablet terminals in recent years.
  • the optical member sheet FX is cut into a sheet piece aligned with the display region P4 of the liquid crystal panel P and then bonded to the liquid crystal panel P, the dimensional tolerances of the sheet piece and the liquid crystal panel P, and their relative bonding Position tolerances overlap. Therefore, it becomes difficult to narrow the width of the frame part G of the liquid crystal panel P. That is, it becomes difficult to enlarge the display area.
  • the tolerance of the width of the frame part 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 it becomes difficult for cracks and chips to occur at the edge of the substrate of the liquid crystal panel P, such as a heat cycle.
  • the durability against is improved.
  • the energy per unit length of laser irradiation is preferably determined in consideration of the thickness and configuration of the liquid crystal panel P and the optical member sheet FX.
  • the optical member sheet FX when the optical member sheet FX is cut with a laser, it is preferable to perform laser irradiation within an energy range of 0.01 to 0.11 (J / mm) per unit length. If the energy per unit length is too large in laser irradiation, the optical member sheet FX may be damaged when the optical member sheet FX is cut with a laser. However, it is possible to prevent the optical member sheet FX from being damaged by performing laser irradiation within an energy range of 0.01 to 0.11 (J / mm) per unit length.
  • the laser cut start point pt1 is set on the extension of one long side of the display region P4. Then, 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 manufacturing system of the optical member bonding body in the above embodiment is the liquid crystal panel P in the manufacturing system of the second single-sided bonding panel P12 formed by bonding the optical members F11 and F12 to the liquid crystal panel P.
  • the relative bonding position between the liquid crystal display panel P and the optical member sheets F1 and F2 is determined based on the inspection data indicating the optical axis direction of the optical member sheets F1 and F2 larger than the display area P4 of (optical display component).
  • the alignment device 11, 14 that aligns the liquid crystal panel P with respect to the optical member sheets F 1, F 2, and the alignment devices 11, 14, based on the control device 20 that controls the relative bonding position determined by the control device 20.
  • the optical member sheets F1 and F2 are sequentially bonded to the aligned optical display component to form a second bonding sheet.
  • region which is the area
  • the manufacturing system of the optical member bonding body in the said embodiment WHEREIN In the manufacturing system of the double-sided bonding panel P13 formed by bonding the optical member F13 to the 2nd single-sided bonding panel P12, said 2nd single-sided bonding panel.
  • the bonding device 18 that is bonded to the optical member sheet F3 larger than the display area P4 of the liquid crystal panel P on the surface opposite to the optical members F11 and F12 of P12 to form the third bonding sheet F23; Before the optical member sheet F3 is bonded to the second single-sided bonding panel P12, the relative relationship between the liquid crystal panel P and the second single-sided bonding panel P12 based on the inspection data in the optical axis direction of the optical member sheet F3.
  • the control device 20 that determines the bonding position and the phase determined by the control device 20 before the optical member sheet F3 is bonded to the second single-sided bonding panel P12. After bonding the optical member sheet F3 to the alignment device 17 that aligns the second single-sided bonding panel P12 with respect to the optical member sheet F3 based on the bonding position, and the second single-sided bonding panel P12, By separating the portion of the optical member sheet F3 facing the display region P4 and the excess portion outside the optical member sheet F3, the optical member F13 having a size corresponding to the display region P4 is cut out from the optical member sheet F3.
  • the cutting apparatus 19 which cuts out the said double-sided bonding panel P13 containing the said liquid crystal panel P and the optical member F13 which overlaps with this from the bonding sheet
  • the cutting device 16 cuts out the optical member sheets F1 and F2 having a size corresponding to the display region P4 from the optical member sheets F1 and F2, thereby the liquid crystal display panel P. And you may cut out the 2nd bonding sheet
  • control device 20 may use a longitudinal axis passing through the center of the plane of the liquid crystal display panel P as the reference axis.
  • the alignment devices 11 and 14 are arranged such that the optical member sheets F1 and F2 and the liquid crystal display panel P are arranged at the relative bonding positions determined by the control device 20.
  • the liquid crystal display panel P may be aligned.
  • the alignment devices 11 and 14 are moved by the roller conveyor 5 (first transport device) in a direction perpendicular to the transport direction of the liquid crystal display panel P, and the rollers.
  • the liquid crystal display panel P may be transported to the relative bonding position by rotation around an axis perpendicular to the transport direction of the liquid crystal display panel P by the conveyor 5.
  • the alignment devices 11 and 14 reverse the liquid crystal display panel P, and then, based on the relative bonding position determined by the control device 20, the optical member sheet F1. , F2 may be aligned with the liquid crystal display panel P.
  • the said bonding apparatuses 12 and 15 are more than the magnitude
  • the cutting device 16 may cut the optical member sheets F1 and F2 using a laser.
  • the camera C imaging device that images the position of the liquid crystal display panel P
  • the control device 20 captures the inspection data and the image captured by the camera C.
  • the relative bonding position may be determined based on the position of the liquid crystal display panel P.
  • the liquid crystal display panel P is transported in the order of the alignment devices 11, 14, the bonding devices 12, 15, and the cutting device 16. ) May be further provided.
  • the transport device 12a includes the second collection unit 15d that collects the second region of the optical member sheets F1 and F2 separated by the second cutting device 16. Also good.
  • the optical member sheets F1, F2, and F3 are bonded to the liquid crystal panel P after alignment based on inspection data in the optical axis direction.
  • liquid crystal panel P can be aligned and bonded according to this optical axis direction.
  • the precision of the optical axis direction of the optical members F11, F12, and F13 with respect to the liquid crystal panel P increases, and the color and contrast of the optical display device can be increased.
  • it can respond also to manufacture of the optical member bonding body which has arbitrary optical axis directions.
  • the manufacturing method of the optical member bonding body in the above embodiment is based on the inspection data indicating the optical axis direction of the optical member sheets F1, F2 larger than the display area P4 of the liquid crystal panel P (optical display component).
  • a relative bonding position between the liquid crystal display panel P and the optical member sheets F1 and F2 is determined.
  • the liquid crystal panel P is aligned with the optical member sheets F1 and F2 and aligned.
  • the optical member sheets F1 and F2 are sequentially bonded to the optical display component to form a second bonding sheet F22, which is a region of the bonded optical member sheets F1 and F2 and the display of the liquid crystal panel P.
  • the manufacturing method of the optical member bonding body in the said embodiment is a display area of said 2nd single-sided bonding panel P12 on the surface on the opposite side to said optical members F11 and F12 of said 2nd single-sided bonding panel P12.
  • the optical member sheet F3 is bonded to the optical member sheet F3 larger than P4 to form the third bonding sheet F23, and before the optical member sheet F3 is bonded to the second single-sided bonding panel P12, the optical of the optical member sheet F3.
  • the step of determining the relative bonding position between the liquid crystal panel P and the second single-sided bonding panel P12 and the optical member sheet F3 are bonded to the second single-sided bonding panel P12.
  • the double-sided bonding panel P13 including the single liquid crystal panel P and the optical member F13 overlapping therewith is cut out from the third bonding sheet F23.
  • FIG. 11 shows the modification of the film bonding system 1.
  • FIG. This differs from the configuration of FIG. 1 in that a first bonding device 12 ′ replacing the first bonding device 12 and a first cutting device 13 ′ replacing the first cutting device 13 are provided.
  • the other components that are the same as those in the above embodiment are given the same reference numerals, and detailed description thereof is omitted.
  • 1st bonding apparatus 12 ' is equipped with the conveying apparatus 12a' replaced with the said conveying apparatus 12a.
  • the transport device 12a 'further includes a first recovery unit 12e in addition to the roll holding unit 12c and the pf recovery unit 12d, as compared with the transport device 12a.
  • recovery part 12e winds up the excess part of the 1st optical member sheet
  • 1st cutting device 13 ' is located in the panel conveyance upstream rather than the 1st collection part 12e in the panel conveyance downstream rather than the pf collection
  • the first cutting device 13 ' cuts the first optical member sheet F1 so as to cut out a sheet piece larger than the display area P4 from the first optical member sheet F1.
  • the first cutting device 13 ′ is a laser beam machine similar to the second and third cutting devices 16 and 19.
  • the first cutting device 13 ' cuts the first optical member sheet F1 endlessly along a predetermined line outside the display area P4.
  • FIG. 12 shows another modification of the film bonding system 1. This differs from the configuration of FIG. 1 in that a third alignment device 17 ′ and a third bonding device 18 ′ are provided in place of the third alignment device 17 and the third bonding device 18.
  • the other components that are the same as those in the above embodiment are given the same reference numerals, and detailed description thereof is omitted.
  • the third alignment device 17 ′ has a panel front / back reversing function and has only the same alignment function as the first and second alignment devices 11 and 14. It has a simple configuration. 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 is performed in the width direction and rotation direction. 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 structure which reversed the top and bottom of the said conveying apparatus 18a and the pinching roll 18b. Thereby, the bonding surface of the 3rd optical member sheet
  • this invention is not restricted to the said embodiment and modification,
  • seat suitably may be sufficient.
  • 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.
  • the above-described control device 20 has a computer system inside.
  • the operation of each device described above is stored in a computer-readable recording medium in the form of a program, and the above processing is performed by the computer reading and executing this program.
  • the computer-readable recording medium means a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like.
  • the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.
  • the program may be for realizing a part of the functions described above. Furthermore, what can implement
  • the present invention can be applied to a manufacturing system, a manufacturing method, a recording medium, and the like of an optical member bonded body that can improve the accuracy in the optical axis direction of an optical film bonded to an optical display component.
  • First bonding device 15 Second bonding device (bonding device) 18 Third bonding device (bonding device) 16 Second cutting device (cutting device) 19 Third cutting device (cutting device) P Liquid crystal panel (optical display component) P4 display area F1 first optical member sheet (optical member sheet) F2 Second optical member sheet (optical member sheet) F3 Third optical member sheet (optical member sheet) F11 first optical member (optical member) F12 Second optical member (optical member) F13 Third optical member (optical member) F22 2nd bonding sheet (bonding sheet) F23 Third bonding sheet (bonding sheet) P12 2nd single-sided bonding panel (optical member bonding body) P13 Double-sided bonding panel (optical member bonding body)

Abstract

L'invention se rapporte à un système de fabrication d'un stratifié pour élément optique, ce système étant muni d'un dispositif de commande qui détermine, sur la base de données d'essai indiquant la direction de l'axe optique d'une feuille d'élément optique plus grande que la région d'affichage d'une composante d'affichage optique, la position de fixation relative de ladite composante d'affichage optique et de ladite feuille d'élément optique. En outre, ce système de fabrication comporte un dispositif d'alignement qui aligne la composante d'affichage optique sur la feuille d'élément optique en se basant sur la position de fixation relative déterminée par ledit dispositif de commande. De plus, ce système de fabrication est doté d'un dispositif de fixation qui fixe la feuille d'élément optique à la composante d'affichage optique alignée par le dispositif d'alignement. Ledit système de fabrication comprend également un dispositif de découpe qui découpe et sépare une première région, c'est-à-dire la région de la feuille d'élément optique qui a été fixée par ledit dispositif de fixation et qui se trouve en regard de la région d'affichage de la composante d'affichage optique, et une seconde région, c'est-à-dire une région de la feuille d'élément optique qui ne se situe pas dans la première région.
PCT/JP2012/080144 2011-11-21 2012-11-21 Système de fabrication de stratifié pour élément optique, procédé de fabrication et support d'enregistrement WO2013077348A1 (fr)

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KR1020137025566A KR101493187B1 (ko) 2011-11-21 2012-11-21 광학 부재 접합체의 제조 시스템, 제조 방법 및 기록 매체
CN201280016838.9A CN103460268B (zh) 2011-11-21 2012-11-21 光学构件层压体的制造系统、制造方法以及记录介质

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JP6526940B2 (ja) * 2013-08-20 2019-06-05 住友化学株式会社 光学部材貼合体の製造装置及び製造方法
JP5911035B2 (ja) * 2014-07-18 2016-04-27 日東電工株式会社 光学表示セルに光学フィルムを貼り付ける方法
JP6256664B6 (ja) * 2015-06-02 2018-06-27 三菱ケミカル株式会社 画像表示装置用積層体の製造方法
CN106556947A (zh) * 2015-09-24 2017-04-05 宇龙计算机通信科技(深圳)有限公司 一种偏光片贴附方法及装置
WO2018193975A1 (fr) * 2017-04-20 2018-10-25 シャープ株式会社 Procédé de fabrication de panneau d'affichage
JP6416351B1 (ja) * 2017-09-28 2018-10-31 日東電工株式会社 定形パネルへの樹脂フィルム貼付けシステム
CN108776406B (zh) * 2018-05-29 2021-06-01 武汉华星光电技术有限公司 一种彩色滤光片的制备基板及彩色滤光片基板的制造方法
CN108845439A (zh) * 2018-06-08 2018-11-20 信利半导体有限公司 液晶显示面板的偏光片贴附与切割一体化方法及设备

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JP2013130868A (ja) 2013-07-04
KR101493187B1 (ko) 2015-02-12
JP5280581B2 (ja) 2013-09-04
CN103460268A (zh) 2013-12-18
TWI425260B (zh) 2014-02-01
KR20130115396A (ko) 2013-10-21
TW201329541A (zh) 2013-07-16

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