WO2016031978A1 - Substrate bonding device, laminate manufacturing method, and image display device manufacturing method - Google Patents

Substrate bonding device, laminate manufacturing method, and image display device manufacturing method Download PDF

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Publication number
WO2016031978A1
WO2016031978A1 PCT/JP2015/074489 JP2015074489W WO2016031978A1 WO 2016031978 A1 WO2016031978 A1 WO 2016031978A1 JP 2015074489 W JP2015074489 W JP 2015074489W WO 2016031978 A1 WO2016031978 A1 WO 2016031978A1
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WO
WIPO (PCT)
Prior art keywords
substrate
bonding
flexible plate
window glass
liquid crystal
Prior art date
Application number
PCT/JP2015/074489
Other languages
French (fr)
Japanese (ja)
Inventor
泰則 伊藤
優貴 立山
雄貴 堀
Original Assignee
旭硝子株式会社
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
Priority claimed from JP2014229590A external-priority patent/JP2017187516A/en
Application filed by 旭硝子株式会社 filed Critical 旭硝子株式会社
Publication of WO2016031978A1 publication Critical patent/WO2016031978A1/en

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the present invention relates to a substrate bonding apparatus, a laminate manufacturing method, and an image display apparatus manufacturing method.
  • Patent Document 1 as an apparatus for adhering two substrates in close contact so as not to entrap bubbles at the adhesive layer interface between the two substrates.
  • the first work (first substrate) sucked and held by the work support structure and the second work (second substrate) sucked and held by the movable table Is a substrate bonding apparatus that performs bonding by pressing a first workpiece against a second workpiece with a roller mechanism, and the roller mechanism is a bonding start end of both workpieces.
  • a driving base that reciprocates between the bonding ends, a roller support frame that is supported by the driving base so as to be movable up and down, a main roller that is rotatably supported by the roller support frame, and a peripheral surface 2 of the main roller.
  • a plurality of pressing tables each of which includes an intermediate roller that supports the portion and a pressing structure that presses the main roller via the intermediate roller, the pressing structures being arranged at regular intervals along the central axis of the main roller And pivotally supported by each press stand
  • a plurality of correction rollers and an air cylinder provided between each pressing table and the drive table, and the main roller is a plurality of air cylinders and is supported by floating through the correction roller and the intermediate roller.
  • the first substrate such as a glass plate may not have a completely flat surface but may have a slight warp.
  • the first substrate having a size of 2 m ⁇ 1 m, there is a warp of about 1 mm, and even this warp inhibits the adhesion bonding.
  • the first substrate may be warped due to a bonding load at the time of bonding. Therefore, the countermeasure against warping of the first substrate becomes an important issue in substrate bonding.
  • this image display panel when an image display panel (hereinafter, this image display panel is also referred to as a second substrate) is bonded to a building window glass (hereinafter, this window glass is also referred to as a first substrate).
  • this window glass In the case of field bonding, it is difficult to bond using the bonding apparatus of the cited reference 1. This is because the window glass of a building cannot be adsorbed and held on the work support structure of the bonding apparatus of the cited document 1, and therefore the bonding apparatus of the cited document 1 cannot be used.
  • This invention is made
  • the pasting device which can paste two substrates with high accuracy without air bubbles entering the adhesive layer interface between them, for example, on-site bonding to bond the image display panel for digital signage to the window glass of buildings, etc. It aims at providing the manufacturing method of the bonding apparatus of a board
  • substrate bonding apparatus of 1 aspect of this invention is a board
  • an elastically deformable flexible plate-like member that adsorbs and fixes the second substrate, a support member that supports the flexible plate-like member on the first substrate, and the flexibility A member for bending the plate member, and a pressing member for pressing the flexible plate member and bonding the second substrate to the first substrate are provided.
  • the manufacturing method of the laminated body of 1 aspect of this invention WHEREIN: The process which fixes a 2nd board
  • the first substrate is a window glass
  • the second substrate is an image display panel
  • the window glass and the image are manufactured by the method for manufacturing a laminate. It is characterized by being bonded to a display panel.
  • the second substrate is not directly applied to the second substrate but is held on the flexible plate member. By doing so, the bonding load was applied via the flexible plate-like member.
  • the bonding apparatus and the manufacturing method of the laminate and the manufacturing method of the image display apparatus of the present invention when the first substrate is warped or when warping occurs during bonding, the two substrates can be bonded with high accuracy without bubbles entering the adhesive layer interface between the first substrate and the second substrate.
  • FIG. 1 Vertical section of image display device Enlarged sectional view of part A in FIG. (A) is a front view of the bonding apparatus, (B) is a side view of the bonding apparatus. (A) is a front view of the bonding apparatus, (B) is a side view of the bonding apparatus.
  • Cross-sectional view of flexible plate member Sectional drawing of flexible plate-like member provided with adhesive member (A)-(D) is a plan view of a flexible plate-like member showing the arrangement of adhesive members Explanatory drawing of bonding load distribution by flexible roller View from arrow C-C 'in Fig.
  • FIG. 1 is a longitudinal sectional view of the image display device 100
  • FIG. 2 is an enlarged sectional view of a portion A in FIG.
  • the image display device 100 includes a window glass 102 that is a first substrate, a first adhesive layer 114, a glass plate 110 that is a transparent surface material, a second adhesive layer 116, and a liquid crystal panel 106 that is a second substrate. It is constructed by stacking in order. Hereinafter, each member will be described.
  • the first substrate is a transparent member.
  • the existing transparent member used for a store, an office, etc. is mentioned.
  • the transparent member include a resin such as glass and acrylic, or a laminate of glass and resin.
  • the glass include single plate glass, laminated glass, and multilayer glass.
  • the transparent face member 110 is a plate-like body interposed between the liquid crystal panel 106 and the window glass 102 when the liquid crystal panel 106 described later is bonded to the window glass 102.
  • the transparent face material include a glass plate and a resin plate. From the viewpoint of having high light resistance, low birefringence, high planar accuracy, surface scratch resistance, and high mechanical strength as well as high transparency with respect to light emitted from the liquid crystal panel 106 and reflected light, a transparent surface material It is most preferable to use a glass plate as 110.
  • the use of a glass plate is also preferred from the viewpoint of having a high transmittance with respect to light for curing the photocurable resin composition constituting the first adhesive layer 114 and the second adhesive layer 116.
  • the structure in which the window glass 102 and the glass plate as the transparent surface material 110 are laminated by the first adhesive layer 114 corresponds to the first substrate in the present invention.
  • glass plate examples include glass materials such as soda lime glass.
  • resin plate examples include highly transparent resin materials such as polycarbonate and polymethyl methacrylate.
  • the shape of the transparent surface material 110 may be determined according to the planar shape of the liquid crystal panel 106 to be bonded, and is rectangular as an example.
  • the thickness of the transparent face member 110 is preferably about 0.2 to 2.0 mm in the case of a glass plate in view of mechanical strength, transparency, and the like. In order not to make the observer feel a strong sense of depth in the displayed image, the thickness of the transparent face member 110 is more preferably about 0.2 to 1.1 mm. In the case of a resin plate, the thickness of the transparent face member 110 is preferably about 0.1 to 1.0 mm.
  • the transparent surface material 110 preferably has a light shielding portion 112 at the peripheral end portion.
  • a wiring member such as a flexible printed wiring board connected to the liquid crystal panel 106 can be hidden.
  • the transparent surface material is a glass plate
  • the light shielding portion can be formed using various thin film forming methods.
  • the pressure-sensitive adhesive layer is made of a transparent resin obtained by curing a liquid photocurable resin composition.
  • the photocurable resin composition that is a raw material for the adhesive layer is preferably a liquid composition containing a photocurable curable compound, a photopolymerization initiator, and, if necessary, a non-curable oligomer.
  • the non-curable oligomer is preferably an oligomer having a hydroxyl group that does not cause a curing reaction with the curable compound in the composition when the photo-curable resin composition is cured.
  • the transparent resin of the first adhesive layer 114 and the second adhesive layer 116 may be the same or different.
  • the thickness of the adhesive layer is preferably about 0.1 to 2.0 mm, more preferably about 0.2 to 0.8 mm.
  • the thickness of the first adhesive layer 114 and the second adhesive layer 116 may be the same or different.
  • the areas of the first adhesive layer 114 and the second adhesive layer 116 are adjusted according to the size of the transparent surface material.
  • the areas of the first adhesive layer 114 and the second adhesive layer 116 may be the same or different.
  • the first adhesive layer 114 is provided over the entire area of the first surface 110a of the glass plate 110.
  • the second adhesive layer 116 is provided in a partial region of the second surface 110 b of the glass plate 110.
  • the 2nd surface 110b of the glass plate 110 has the area
  • Examples of the second substrate include image display panels such as a liquid crystal display panel (LCD), a plasma display panel (PDP), and an organic EL display panel (OELD: Organic Electro Luminescence Display). be able to.
  • image display panels such as a liquid crystal display panel (LCD), a plasma display panel (PDP), and an organic EL display panel (OELD: Organic Electro Luminescence Display).
  • LCD liquid crystal display panel
  • PDP plasma display panel
  • OELD Organic Electro Luminescence Display
  • the liquid crystal display unit 104 includes a liquid crystal panel 106, a pair of polarizing plates 122 and 124, a backlight 126, a frame 128, and a case 130.
  • the liquid crystal panel 106 includes a pair of glass substrates 132 and 134 and liquid crystal (not shown) sealed between the glass substrates 132 and 134.
  • the pair of glass substrates 132 and 134 includes a TFT element substrate provided with a thin film transistor (Thin ⁇ FilmTransistor) and a color filter substrate provided with a color filter.
  • the backlight 126 includes a light emitting element 136 such as a light emitting diode, a light guide plate 138, a prism sheet (not shown), a plurality of optical films 140 such as a light diffusion sheet, and a mirror 142.
  • a light emitting element 136 such as a light emitting diode
  • a light guide plate 138 a prism sheet (not shown)
  • a plurality of optical films 140 such as a light diffusion sheet
  • a mirror 142 such as a light diffusion sheet
  • the plurality of optical films 140 have a function of making the intensity of light emitted from the light guide plate 138 uniform. Therefore, the plurality of optical films 140 and the liquid crystal panel 106 are arranged at intervals.
  • the liquid crystal panel 106 is supported by the window glass 102 via an adhesive layer or an adhesive layer and a glass plate 110. Since the liquid crystal panel 106 and the backlight 126 are independent, the backlight 126 is supported by the window glass 102 separately from the liquid crystal panel 106.
  • the backlight 126 is supported by the window glass 102 via an angle 144 whose section is L-shaped.
  • the angle 144 is fixed to the light shielding portion 112 on the second surface 110 b of the glass plate 110 with a double-sided adhesive tape 146. That is, the backlight 126 is fixed to the frame 128, the frame 128 is fixed to the case 130, the case 130 is fixed to the angle 144 by the bolt 148, and the angle 144 is fixed to the light shielding unit 112. Thereby, the backlight 126 is supported by the window glass 102 through the glass plate 110.
  • This invention is the manufacturing method and bonding apparatus of a laminated body which bond the surface (bonding surface) of a 2nd board
  • the substrate and the second substrate are not particularly limited, as described above, it is preferable to apply the window glass as the first substrate and the image display panel as the second substrate.
  • the substrate bonding apparatus and the laminate manufacturing method of the present invention can be applied to either the vertical direction, the state where the first substrate is inclined from the vertical direction, or the state in the horizontal direction.
  • the shape of the second substrate is not limited.
  • the shape of the second substrate can be a circle, a rectangle, a square, or the like.
  • the aspect ratio is not particularly limited, and may be a portrait or landscape.
  • a liquid crystal panel 106 (second substrate) is bonded to an existing window glass 102 (first substrate) fixed to a building through an adhesive layer based on FIGS.
  • An example of manufacturing an image display device having the window glass 102, the first adhesive layer 114, the transparent surface material 110, the second adhesive layer 116, and the liquid crystal panel 106 in this order will be described.
  • the window glass 102 shall be arrange
  • the screen size of the liquid crystal panel 106 to be bonded is 42 inches as an example.
  • the bonding method which abbreviate
  • FIG. 3A shows a bonding apparatus 10 for bonding a rectangular liquid crystal panel 106 to a window glass 102 fixed to a window frame (not shown) using the bonding apparatus 10 of the embodiment. Is a front view in which the window glass 102 is detachably supported, and FIG. 3B is a side view of FIG.
  • the bonding apparatus 10 includes a flexible plate-like member 12, a hanger unit 14 that is a support member, a roller 16 that is a pressing member, and a member 24 that is curved. Configured.
  • the bonding apparatus 10 of this embodiment as the form provided with the press part 22 provided with the roller support part 18 which is arbitrary structures, and the elastic bonding load adjustment mechanism part 20 which provides the bonding load to the roller 16. FIG. explain.
  • the flexible plate-like member 12 is a flat member that can be elastically deformed and fixes the back surface (non-bonding surface) of the rectangular liquid crystal panel 106.
  • the flexible plate-like member 12 is configured to have a larger area size than the area size of the liquid crystal panel 106.
  • the fixing means for the flexible plate-like member 12 that fixes the liquid crystal panel 106 in this embodiment, an example of adsorption fixing and an example of using both adsorption fixing and adhesive fixing will be described.
  • FIG. 5 is a longitudinal sectional view of the flexible plate-like member 12.
  • the flexible plate-like member 12 includes a rectangular-shaped flexible plate 26, a frame-like closed-cell sponge member 28 bonded to the peripheral surface portion of the flexible plate 26, and the inner periphery of the sponge member 28.
  • the rectangular porous sheet 30 is bonded to the flexible plate 26 on the side.
  • a frame-shaped gap 32 is formed between the frame-shaped sponge member 28 and the porous sheet 30.
  • the sponge member 28 and the porous sheet 30 are attached to the flexible plate 26 using an adhesive (or double-sided adhesive tape) 34.
  • a suction path 35 having one end communicating with the gap 32 and the other end communicating with a plurality of suction ports 36 (see FIG. 3A).
  • a plurality of suction ports 36 are provided at both ends of the flexible plate 26 (portions that do not adsorb the liquid crystal panel 106). These suction ports 36 are connected to the vacuum pump 40 via suction hoses 38.
  • the peripheral surface of the liquid crystal panel 106 is placed on the sponge member 28, and the upper surface of the frame-like gap 32 is covered.
  • the liquid crystal panel 106 closes.
  • the vacuum pump 40 is driven to suck air through the suction hose 38, the suction port 36, the suction path 35, and the gap 32.
  • an adsorption force is generated on the adsorption surface 30A of the porous sheet 30, and the liquid crystal panel 106 is adsorbed and fixed on the adsorption surface 30A.
  • the thickness of the porous sheet 30 is preferably 2 mm or less, and more preferably 1 mm or less (for example, 0.5 mm). Further, the thickness of the sponge member 28 is preferably thicker than the thickness of the porous sheet 30. The sponge member 28 is preferably elastically deformed to the thickness of the porous sheet 30 when the liquid crystal panel 106 is fixed by suction. Thereby, since the gap 32 can be surely closed, the suction force of the suction surface 30 ⁇ / b> A to the liquid crystal panel 106 is increased, and the liquid crystal panel 106 can be sufficiently sucked and fixed to the flexible plate member 12.
  • the porous sheet 30 preferably has conductivity. Generation of static electricity can be suppressed when a release sheet attached to the surface of the adhesive layer described later is peeled off or when the flexible plate member 12 and the liquid crystal panel 106 are removed after bonding.
  • the flexible plate 26 needs to be elastically deformable.
  • a vinyl chloride resin plate having a thickness of 2 mm or more and 3 mm or less is suitable.
  • a single vinyl chloride resin plate may be used, but as shown in FIG. 5, a vinyl chloride resin plate 26A having a thickness of 2 mm and a vinyl chloride resin plate 26B having a thickness of 0.5 mm are bonded with an adhesive (or both surfaces).
  • An adhesive tape) 42 can also be used.
  • a conductive sheet (not shown) is preferably bonded to the surface of the flexible plate 26 opposite to the bonded surface of the porous sheet 30. Thereby, generation
  • the flexible plate-like member 12 is preferably provided with an adhesive member 88.
  • FIG. 6 is a cross-sectional view of the flexible plate member 12 including the adhesive member 88. 6 corresponds to the cross-sectional view of the flexible plate-like member 12 shown in FIG.
  • the adhesive member 88 is disposed in the frame-shaped gap 32 between the sponge member 28 and the porous sheet 30. Specifically, the gap 32 is bonded to the vinyl chloride resin plate 26B via a double-sided adhesive tape (not shown).
  • the thickness of the pressure-sensitive adhesive member 88 including the thickness of the double-sided adhesive tape is set to the total thickness of the porous sheet 30 and the adhesive 34.
  • the liquid crystal panel 106 can be sufficiently fixed to the flexible plate member 12 by using the adhesive force of the adhesive member 88 in addition to the attractive force of the adsorption surface 30A of the porous sheet 30.
  • the flexible plate is affected by the adhesive force of the adhesive member 88. It is possible to prevent the shaped member 12 from being completely detached from the liquid crystal panel 106.
  • the adhesive member 88 is easily removed from the liquid crystal panel 106 by releasing the vacuum suction and bending the flexible plate member 12 with respect to the liquid crystal panel 106. Can do.
  • the adhesive member 88 preferably has a hardness of Shore A 70 or less.
  • the adhesive member 88 preferably has a surface roughness (Ra) of 0.2 ⁇ m or less.
  • the hardness of the adhesive member 88 is a value measured by a test method based on JIS Z 2246 (2000).
  • the surface roughness (Ra) of the adhesive member 88 is a value measured by a test method based on JIS B 0601 (2000).
  • the pressure-sensitive adhesive member 88 that satisfies the above conditions can obtain a sufficient pressure-sensitive adhesive force with respect to the liquid crystal panel 106, and can be repeatedly adsorbed and peeled, so that workability is improved.
  • a rubber sheet made of urethane or silicon is preferably exemplified.
  • FIGS. 7A, 7 ⁇ / b> B, 7 ⁇ / b> C, and 7 ⁇ / b> D are plan views of the flexible plate-like member 12 showing the arrangement of the adhesive members 88 with respect to the flexible plate-like member 12. Is shown.
  • the form shown in FIG. 7A is a form in which four adhesive members 88 configured in a strip shape are arranged along the four sides of the gap 32. .
  • the adhesive member 88 is disposed along four sides of the rectangular flexible plate member 12.
  • FIG. 7B The form shown in FIG. 7B is a form in which two adhesive members 88 configured in a strip shape are arranged along two opposing sides of the gap 32.
  • the adhesive member 88 is disposed along two sides of the rectangular flexible plate member 12.
  • FIG. 7C is a form in which the porous sheet 30 is divided into two rectangular sheets and an adhesive member 88 is additionally arranged in the gap 32A between the sheets in the form shown in FIG. 7B. It is. That is, the adhesive member 88 is disposed in at least two places on the flexible plate-like member 12. And when the flexible plate-shaped member 12 is rectangular shape, it arrange
  • 7D is a form in which four rectangular adhesive members 88 are arranged along the corners of the gap 32.
  • the adhesive member 88 is disposed at a corner of the rectangular flexible plate member 12.
  • the shape of the adhesive member 88 arranged at the corner is not limited to a quadrangular shape, and may be a circular shape or a polygonal shape.
  • the form of the adhesive member 88 is not limited to the above four forms, and the arrangement position, size, and the like are the adhesive strength of the adhesive member 88, the size of the flexible plate member 12 and the liquid crystal panel 106. It is appropriately selected depending on the mass and the like.
  • the hanger unit 14 that is a support member (support means) shown in FIG. 3 is a member that suspends and supports the flexible plate member 12 to which the liquid crystal panel 106 is adsorbed and fixed. Moreover, the hanger unit 14 is fixed to the window glass 102, and the flexible plate member 12 is in a state where the liquid crystal panel 106 is directly opposed to the bonding position of the window glass 102 through a predetermined bonding gap. It is preferable that the jig can adjust the vertical position, inclination, and horizontal position of the jig. In the present embodiment, the hanger unit 14 will be described as a jig that adjusts the position in the horizontal direction and the position and inclination in the vertical direction.
  • the hanger unit 14 includes a horizontal position adjusting unit 44 that adjusts the horizontal position of the flexible plate-like member 12 along the surface of the window glass 102 installed in the vertical direction. And the vertical direction position adjustment part 46 which adjusts the position of the vertical direction of the flexible plate-shaped member 12 along the surface of the window glass 102 is provided.
  • the hanger unit 14 includes a pair of hand suction boards 48. The hanger unit 14 is sucked and fixed to the window glass 102 by sucking these hand suction boards 48 on the surface of the window glass 102.
  • the hand suction board 48 can replace with the hand suction board 48, but the suction disk connected with the vacuum pump (not shown) can also be used, but in the case of on-site bonding, the hand suction board 48 with good handling property is preferable.
  • the hand suction board 48 one having an allowable load of 25 kgf / 1 manufactured by Shinwa Measurement Co., Ltd. can be suitably used.
  • the suction position of the hand suction board 48 is not limited to the window glass 102 and may be suction fixed to a wall (support) of a building that supports the window glass.
  • the horizontal position adjusting unit 44 is configured by supporting two linear sliders 44B and 44B on a rail-like member 44A so as to be slidable along the longitudinal direction of the rail-like member 44A.
  • a hand suction board 48 is provided on each of the two linear sliders 44B and 44B.
  • the vertical position adjustment unit 46 includes a pair of turnbuckles 50 and 50.
  • the pair of turnbuckles 50, 50 are suspended from the rail-shaped member 44A by attaching their upper ends to both ends of the rail-shaped member 44A.
  • the two hand suction boards 48 are sucked and fixed to the surface of the window glass 102 so that the longitudinal direction of the rail-shaped member 44A is directed to the horizontal direction.
  • the suction position of the hand suction board 48 is a rough position corresponding to the bonding position of the liquid crystal panel 106.
  • the ring 12A attached to the upper end of the flexible plate-like member 12 is detachably engaged with the hook 50A provided at the lower end of the pair of turnbuckles 50, 50. Thereby, the flexible plate-like member 12 to which the liquid crystal panel 106 is adsorbed and fixed is suspended and supported by the hanger unit 14.
  • the rail-shaped member 44 ⁇ / b> A is moved and adjusted in the horizontal direction, and the vertical length is individually adjusted using the pair of turnbuckles 50 and 50.
  • the position of the liquid crystal panel 106 is lowered in the vertical direction, and when the turnbuckles 50 and 50 are shortened by the same amount, the position is raised in the vertical direction.
  • the inclination can be adjusted by extending one of the turnbuckles 50, 50 and contracting the other. Thereby, the bonding position of the liquid crystal panel 106 with respect to the window glass 102 can be easily adjusted to a desired position.
  • the configurations of the horizontal position adjusting unit 44 and the vertical position adjusting unit 46 are not limited to the above example, and the horizontal position and vertical position and inclination of the liquid crystal panel 106 can be adjusted. Any function can be applied.
  • the roller 16 as a pressing member has an axial length equal to or greater than the width of the liquid crystal panel 106.
  • the roller 16 presses the flexible plate member 12 from the back surface of the flexible plate member 12 toward the window glass 102 and applies a bonding load to the flexible plate member 12. Further, the roller 16 is moved downward from a bonding start end that is the upper end of the liquid crystal panel 106 to a bonding end end that is the lower end of the liquid crystal panel 106. By this operation, the liquid crystal panel 106 is bonded to the window glass 102.
  • the said bonding load is provided to the flexible plate-shaped member 12 through the roller 16 from the press part 22 mentioned later.
  • FIG. 8 is an explanation showing a bonding load distribution P when the liquid crystal panel 106 is bonded to the window glass 102 by the roller 16.
  • symbol 52 of FIG. 8 is an adhesion layer.
  • FIG. 8 shows the case where the adhesive layer 52 is provided on the window glass 102, but the same applies when the adhesive layer 52 is provided on the liquid crystal panel 106.
  • illustration of the flexible plate-shaped member 12 is abbreviate
  • the width W of the bonding load distribution P is made as narrow as possible and the distribution center Q is bonded. It is preferable to make the combined load as large as possible. In other words, it is preferable to apply a bonding load to the liquid crystal panel 106 in a state where the roller 16 is in Hertz contact (line contact).
  • the roller 16 has a harder roller surface and a smaller roller diameter because it is easy to apply a bonding load in a line contact state.
  • the roller 16 preferably has flexibility so as to follow the warp.
  • a cylindrical tube made of stainless steel or aluminum having an outer diameter of 10 to 30 mm (for example, 20 mm) and a wall thickness of 0.3 to 3.0 mm (for example, 1 mm) is preferably used.
  • an elastic member such as rubber may be coated on the roller surface in a thin film shape.
  • the adhesive layer interface between the window glass 102 and the liquid crystal panel 106 is that the adhesive layer 52 is thicker, the elastic modulus of the adhesive layer 52 is larger, and the adhesive layer 52 is more easily elastically deformed by the bonding load. Air bubbles are difficult to enter.
  • the thickness of the adhesive layer 52 is set to about 0.1 to 2.0 mm, preferably about 0.2 to 0.8 mm. When the thickness of the adhesive layer 52 is 0.1 mm or more, the adhesive layer effectively buffers an impact caused by an external force, and the image display panel can be protected.
  • the thickness of the adhesive layer 52 does not change greatly, and the light transmission performance is affected. Few. When the thickness of the adhesive layer 52 is 2.0 mm or less, the thickness of the image display panel is not unnecessarily increased.
  • the shear modulus of the adhesive layer 52 is preferably in the range of 10 2 to 10 5 Pa, and more preferably in the range of 10 3 to 10 4 Pa.
  • the roller support portion 18, which is a member that supports the pressing member, is a step of detachably supporting the pressing portion 22 including the roller 16 and the bonding load adjusting mechanism portion 20 on the window glass 102. It is a member used.
  • the roller support portion 18 includes a rail frame 54 and four hand suction boards 48 that hold the rail frame 54 to the window glass 102 by suction.
  • the rail frame 54 includes a pair of rails 56 and 56 arranged in parallel in the vertical direction at intervals wider than the width of the flexible plate-like member 12, and two connecting members 58 and 58 that connect the rails 56 and 56. Consists of Note that the number of the hand suction boards 48 may be five or more.
  • FIG. 9 is an arrow view seen from the line C-C ′ in FIG. 3 (A), and is an explanatory diagram showing a bonding state by the roller 16.
  • FIG. 10 is a side view of an essential part showing a bonding state by the roller 16.
  • the roller support part may be a member attached to the window glass 102 or a support body (not shown) connected to the window glass 102 in a non-contact state by a negative pressure generated by blowing gas onto the window glass 102.
  • An example of such a member is shown in FIG.
  • the support portion 18 includes four non-contact chucks 55, an attachment shaft 57 attached to each non-contact chuck 55, and a connection portion 58 that connects the two attachment shafts 57.
  • Two non-contact chucks 55 are attached to each support portion 18, but the number thereof is not limited.
  • the support part 18 is arrange
  • the non-contact chuck 55 a so-called Bernoulli chuck is used.
  • the Bernoulli chuck is a method in which a gas is blown onto a substrate (for example, the window glass 102) to generate a negative pressure by flowing a high-speed gas through a gap between the substrate and the chuck.
  • Bernoulli chuck when gas is blown onto the substrate, the gas is swirled to generate a swirling flow and a larger negative pressure is generated to hold the substrate and the chuck in a non-contact state (cyclone method) Is also included.
  • XT661-10A-R having an allowable load of 4 kgf / piece manufactured by SMC Corporation can be suitably used.
  • the pressing portion 22 is a square bar operation bar 60 disposed in parallel to the axial direction of the roller 16, and a pair of opposed rails 56 provided at both ends of the roller operation bar 60. , 56 slidably engaged with the engaging portion 62, and the axial direction of the roller operation bar 60. Is done.
  • 9 and 10 includes a wheel 64 and a wheel unit 66 in which wheel axes are arranged in an orthogonal direction.
  • the wheel 64 shown in FIG. 9 is rotatably supported by an L-shaped bracket 68 extending laterally from the end of the roller operation bar 60 via a shaft 64A, and is in rolling contact with the inner wall surface 56A of the rail 56. Is done.
  • the wheel unit 66 includes a pair of wheels 66A as shown in FIG. These wheels 66A are rotatably supported by the bracket 68 via a shaft 66B, and are in rolling contact with the roller guide surface 56B of the rail 56.
  • the inner wall surface 56A of the rail 56 and the roller guide surface 56B are surfaces orthogonal to each other, and the wheels 64 are in rolling contact with the inner wall surface 56A, and the pair of wheels 66A are in contact with the roller guide surface 56B.
  • the pressing portion 22 is supported movably along the vertical direction with respect to the roller support portion 18.
  • the wheel unit 66 further includes a disk damper (not shown).
  • a disk damper for example, FDN-47A-R (L) 163 manufactured by Fuji Latex Co., Ltd. can be used.
  • an inclined tapered slope 70 is provided at the upper end (right end in FIG. 10) of the roller guide surface 56B.
  • the roller guide surface 56 ⁇ / b> B is provided with a horizontal plane 72 that is continuous with the slope 70 and parallel to the window glass 102.
  • the roller 16 can be smoothly positioned at the bonding start position by rolling the wheel 66A of the engaging portion 62 to the horizontal plane 72 as shown by the solid line in FIG. 10 using the slope 70.
  • the bonding load adjusting mechanism portion 20 is provided at five positions of the center position in the axial direction of the roller 16, both end positions, and an intermediate position between the center position and both end positions.
  • the pasting load adjusting mechanism 20 is configured to apply a pasting load to the roller 16 and to expand and contract according to an external force.
  • the bonding load adjusting mechanism unit 20 includes a pair of sliders 74, a bracket 76, a spring 78, and a pair of backup rollers 80. It is preferable that the bonding load adjusting mechanism unit 20 can be swung by a rotation support pin or the like. When the roller 16 deforms following the warp of the window glass 102, the pair of backup rollers 80 can be brought into close contact with the roller 16, and the warp of the window glass 102 can be accurately followed.
  • the slider 74 is provided so as to be able to project and retract in a direction perpendicular to the surface of the window glass 102 from the surface facing the window glass 102 of the roller operation bar 60, and the bracket 76 is fixed to the tips of the two sliders 74. .
  • the spring 78 is interposed between the roller operation bar 60 and the bracket 76, and the bracket 76 is biased toward the window glass 102 by the biasing force of the spring 78.
  • the pair of backup rollers 80 is rotatably supported by the bracket 76 via the shaft 80A, and is in rolling contact with the roller 16 rotated in the same direction to support the rotation of the roller 16.
  • the roller 16 is prevented from falling off the roller operation bar 60 by inserting a pin 82 projecting from the bracket 68 into the roller 16.
  • the pair of backup rollers 80 are preferably crown-shaped. If the crown-shaped backup roller 80 is used, the roller 16 can follow the warp of the window glass 102 with higher accuracy.
  • the ends of the pair of backup rollers 80 positioned at both ends preferably protrude beyond the ends of the liquid crystal panel 106. Thereby, sufficient bonding pressure can be applied to the end of the liquid crystal panel 106.
  • the roller 16 is in a state where the spring 78 is extended. It abuts on the flexible plate member 12. Thereafter, as shown by the solid line in FIG. 10, when the pressing portion 22 moves from the slope 70 to the horizontal plane 72, the roller 16 presses the flexible plate member 12, and the spring 78 contracts due to the reaction force. A biasing force is generated at 78. This urging force is a bonding load applied to the roller 16.
  • the flexible plate-like member 12 has a member that curves in an arc shape in a direction of retreating from the window glass 102 from the upper end portion to the lower end portion. With this member, the liquid crystal panel 106 adsorbed and held on the flexible plate-like member 12 can be curved in a convex shape with respect to the window glass 102.
  • the member 24 to be curved is detachably provided at at least two places in the width direction of the flexible plate member 12 at the lower end of the flexible plate member 12. In FIG. 3A, there are provided members 24 that bend at four locations.
  • 11A is a push-up method in which the lower end portion of the flexible plate-like member 12 is pushed up in the direction of retracting from the window glass 102 by the urging force of the spring 24D.
  • a plate 24A is detachably fixed to a lower end portion of the flexible plate member 12, and a rod-like pusher 24B is detachably attached to an opening (not shown) of the plate 24A.
  • An elastic body 24C that is in contact with the window glass 102 is attached to the tip of the pusher 24B.
  • the spring 24D is interposed between the plate 24A and the elastic body 24C, and the pusher 24B is inserted into the spring 24D. .
  • 11B is a pulling system in which the lower end portion of the flexible plate-like member 12 is pulled by the weight of the weight member 24E in the direction of retracting from the window glass 102.
  • the member 24 to be bent is configured by suspending a weight member 24E from a plate 24A via a pulling rope 24F. Further, in order to apply the weight of the weight member 24E to the plate 24A in the horizontal direction, the tow rope 24F is wound around the pulley 24G.
  • the flexible plate-like member 12 can be curved in an arc shape in the direction of retreating from the window glass 102 from the upper end portion to the lower end portion together with the liquid crystal panel 106. That is, it can be curved in a convex shape toward the window glass 102. Even when the flexible plate-like member 12 is pressed toward the window glass 102 by the roller 16, the flexible plate on the downstream side of the position during bonding by the roller 16 by the urging force of the spring 24 ⁇ / b> D. The shaped member 12 can be curved upward along the bonding progress direction. Therefore, it is possible to prevent the liquid crystal panel 106 on the downstream side from being pasted from being pasted on the window glass 102.
  • the fixing form of the plate 24A with respect to the flexible plate-like member 12 is not particularly limited.
  • the plate 24A can be detachably attached to the flexible plate-like member 12 by adopting a clamp method, a hand suction plate method, or the like. it can.
  • the adhesive layer 52 shown in FIG. 8 may be provided on either the window glass 102 or the liquid crystal panel 106. From the viewpoint of easy adjustment of the bonding position, it is preferable to provide the adhesive layer 52 on the liquid crystal panel 106. As the adhesive layer 52, the above-mentioned adhesive layer is used.
  • the flexible plate-like member 12, the hanger unit 14, the roller 16, the roller support portion 18, the pressing portion 22 having the bonding load adjusting mechanism portion 20, and the bending member 24 are configured as independent units.
  • Each unit has a maximum weight of 15 kg or less. Thereby, an operator can handle each unit easily. Therefore, when carrying out site bonding, each unit is carried to the site and the operator can assemble the bonding apparatus 10 easily on site.
  • the bonding apparatus of this embodiment may have a reinforcing member provided on the non-bonding surface of the window glass 102.
  • the reinforcing member is detachably attached to the non-bonding surface of the window glass 102.
  • deformation of the window glass 102 can be suppressed when pressing.
  • the reinforcing member 15 shown in FIG. 12 includes a surface plate 15A (adsorption surface plate) having an adsorption structure.
  • the reinforcing member 15 shown in FIG. 13A is provided with a plurality of frames 15B having rigidity against the bonding load applied to the window glass 102 and a plurality of frames 15B, and is attached to and detached from the non-bonding surface of the window glass 102.
  • an adsorbing portion 15C that adsorbs freely.
  • 13 (B) and 13 (C) are provided with a plurality of frames 15D having a rigidity against the bonding load applied to the window glass 102 and a plurality of frames 15D.
  • an adsorbing portion 15C that adsorbs detachably to the non-bonding surface.
  • 14 includes a surface plate 15A, a holding frame 15D that holds the surface plate 15A, a suction portion 15C that removably attaches the holding frame 15D to the non-bonding surface of the window glass 102, and a holding frame.
  • a contact member 15E that makes the surface plate 15A held by 15D contact the non-bonding surface of the window glass 102.
  • the adsorption surface plate 15A refers to a surface plate having an adsorption structure.
  • vacuum adsorption for the adsorption, vacuum adsorption, electrostatic adsorption, adhesion adsorption, and the like can be used. Among these, vacuum adsorption is preferable from the viewpoint of obtaining a large adsorption force.
  • the vacuum suction type suction surface plate 15A for example, a plurality of suction holes or suction grooves are formed in the surface plate suction surface by communicating with a space portion formed inside the surface plate, and the space portion is connected to a vacuum source. Can be configured.
  • reinforced plastics such as ceramics and FRP that can be easily reduced in weight are preferable, and in the case of a metal, a lightweight metal such as an aluminum alloy is preferable.
  • each frame such as the frame 15B can be a metal such as an aluminum alloy, ceramics, or a reinforced plastic such as FRP.
  • the material of the frame 15B is particularly preferably a reinforced plastic such as an aluminum alloy or FRP that can be easily reduced in weight. Examples of the shapes of the frame 15B, the holding frame 15D, and the like are shown in FIGS. 13A to 13C, but various embodiments can be adopted without being limited thereto.
  • the frame 15B is reliably fixed to the non-bonding surface of the window glass 102 installed in the building in the vertical direction by the suction portion 15C.
  • the suction part 15C for example, the hand suction board described in the hanger unit 14 (the allowable load manufactured by Shinwa Measurement Co., Ltd. is 25 kgf / 1 piece) can be used.
  • the width L of the region where the reinforcing member 15 is disposed is wider than the width W of the liquid crystal panel 106.
  • the holding frame 15D includes a holding arm 15G having a claw portion 15F for holding the surface plate 15A at the upper part and the lower part, and a connecting arm 15H for connecting the holding arm 15G.
  • the holding frame 15D may have any structure as long as the surface plate 15A can be held in contact with the window glass 102.
  • the holding frame 15D is preferably a frame structure having a plurality of openings.
  • the material of the holding frame 15D is particularly preferably a reinforced plastic such as ceramics or FRP which can be easily reduced in weight, and in the case of a metal, a lightweight metal such as aluminum is preferable.
  • the contact member 15E is configured to penetrate the holding arm 15D and press the back surface of the surface plate 15A.
  • the contact member 15E is configured by a female screw and a male screw that is screwed to the female screw, and the tip of the male screw protrudes from the female screw to press the back surface of the surface plate 15A.
  • the contact member 15E is rotated and contacted using torque wrench (not shown) until the torque values become equal to each other.
  • the torque value of the torque wrench at this time is a value obtained by a preliminary test or the like.
  • the bonding apparatus 10 is assembled in the field where the window glass 102 (1st board
  • the manufacturing method of the laminated body (the manufacturing method of an image display apparatus) which bonds (2nd board
  • the manufacturing method of the present laminate includes a holding step of detachably holding the liquid crystal panel 106 (second substrate) on the flexible plate member 12 that is elastically deformable, A support step of detachably attaching the hanger unit 14 (support member) to the window glass 102 (first substrate) and detachably attaching the flexible plate member 12 to the hanger unit 14; A bending step of bending the liquid crystal panel 106 in a convex shape with respect to the window glass 102 toward the bonding direction by bending the flexible plate-like member 12 with the member 24 to be bent; By pressing the flexible plate-like member 12 with the roller 16 (pressing member) and moving the bonding load, the flexible plate-like member 12 is corrected against the curve in the bonding direction, A bonding step of sequentially bonding the liquid crystal panel 106 to the window glass 102 while being deformed so as to follow the shape of the window glass 102 in a direction orthogonal to the bonding direction.
  • the above steps are preferably performed in the order described above.
  • the adhesive layer 52 is provided on one surface of the liquid crystal panel 106, and the liquid crystal panel 106 is brought into the bonding site in a form in which a release sheet (not shown) is attached to the surface of the adhesive layer 52. Shall be.
  • the operator places the rail-shaped member 44 ⁇ / b> A on the hand suction disk 48 of the hanger unit 14 on the vertically installed window glass 102. Adsorb and fix so that it is horizontal.
  • the liquid crystal panel 106 is adsorbed and fixed to the flexible plate-like member 12 in a flat state on the floor surface of the building to be bonded at the site.
  • the adhesive layer 52 is provided on one surface of the liquid crystal panel 106, the surface of the liquid crystal panel 106 on which the adhesive layer 52 is not provided is adsorbed and fixed to the flexible plate member 12. Thereafter, a member 24 to be bent is attached to the flexible plate member 12, and the release sheet is peeled from the liquid crystal panel 106.
  • FIG. 16 (A) is a front view of the flexible plate-like member 12 to which the liquid crystal panel 106 is fixed by suction
  • FIG. 16 (B) is a side view of FIG. 16 (A).
  • the flexible plate-like member 12 may be provided with a sponge member 84 and a dummy sheet 86.
  • the flexible plate-like member 12 is used in the bonding step described later. Before pressing, the contact between the adhesive layer 52 and the window glass 102 can be prevented.
  • the sponge member 84 is compressed to the thickness of the liquid crystal panel 106 by the bonding load by the roller 16 at the time of bonding, so the liquid crystal panel 106 is bonded to the window glass 102 without any problem. Is done.
  • the sponge member 84 may be provided so as to surround the liquid crystal panel 106, and may be provided along the upper edge of the liquid crystal panel 106 in which the adhesive layer 52 may come into contact with the window glass 102.
  • the dummy sheet 86 is provided on the upstream side and the downstream side of the pasting end position from the pasting start position, but only one of the upstream side or the downstream side may be provided.
  • the bonding step is performed after the lower end of the turnbuckle 50 is moved so as to approach the window glass 102.
  • Step of supporting the flexible plate-like member Next, as shown in FIGS. 18A and 18B, the ring 12A of the flexible plate-like member 12 holding the liquid crystal panel 106 is attached to and detached from the hook 50A of the pair of turnbuckles 50 of the hanger unit 14. The flexible plate member 12 is suspended and supported on the window glass 102 via the hanger unit 14 together with the liquid crystal panel 106.
  • the position of the liquid crystal panel 106 is adjusted to the bonding position of the window glass 102 by moving the flexible plate member 12 in the horizontal direction and the vertical direction by the hanger unit 14.
  • the flexible plate-like member 12 is bent, and the liquid crystal panel 106 is bent convexly with respect to the window glass 102.
  • the flexible plate-like member to which the liquid crystal panel 106 is fixed is bent by the bending member 24, so that the liquid crystal panel 106 is bent.
  • the bonding position of the liquid crystal panel 106 is adjusted in a state where the flexible plate-like member 12 is curved.
  • the roller support portion 18 is fixed to the window glass 102 so as to surround the flexible plate-like member 12 supported by suspension. Specifically, four hand suction boards 48 provided on the rail frame 54 of the roller support portion 18 are fixed to the window glass 102, and the roller support portion 18 is fixed to the window glass 102.
  • the pressing portion 22 is mounted from the slope 70 portion of the rail 56 of the roller support portion 18. Thereby, the bonding apparatus 10 is assembled.
  • 21 (A) to 21 (C) explain in detail the procedure for mounting the pressing portion 22 on the rail 56 of the roller support portion 18.
  • the rail 56 is attached to the upper end (position indicated by a two-dot chain line in FIG. 7).
  • the flexible roller 16 is pressed from the back surface of the flexible plate-shaped member 12 toward the window glass 102 via the roller operation bar 60.
  • a bonding load is applied.
  • the upper end (bonding start end) of the liquid crystal panel 106 is bonded to the window glass 102.
  • the roller 16 is moved downward from the upper end to the lower end of the flexible plate member 12.
  • the bending of the flexible plate-like member 12 portion existing in the moving direction of the roller 16 is corrected flat against the urging force of the spring 24D, so that the bonding surface of the liquid crystal panel 106 has an upper end.
  • the bonding surface of the liquid crystal panel 106 is bonded to the window glass 102 without entraining bubbles.
  • the pressing portion 22 is moved to a position beyond the sponge member 84 disposed at the lower position of the liquid crystal panel 106, and this is the bonding end position. At this time, the suction holding of the liquid crystal panel 106 by the flexible plate-like member 12 is released.
  • the flexible plate-like member is corrected against the curve in the bonding direction, and the first in the direction orthogonal to the bonding direction.
  • the second substrate can be sequentially bonded to the first substrate while being deformed so as to follow the first substrate.
  • movement is the bonding operation
  • Bonding may be carried out by one round of up and down bonding operation.
  • the bonding apparatus 10 is removed from the window glass 102.
  • the removal operation first, the pressing portion 22 is removed from the rail 56. Next, the roller support portion 18 is removed from the window glass 102, and the flexible plate member 12 is removed from the hanger unit 14. Finally, the hanger unit 14 is removed from the window glass 102. Thereby, the image display apparatus by which the liquid crystal panel 106 was bonded to the window glass 102 can be comprised.
  • the bonding load is not directly applied to the liquid crystal panel 106 by the roller 16 but via the elastic plate member 12 that can be elastically deformed.
  • the elastic plate member 12 that can be elastically deformed.
  • the liquid crystal panel 106 can be accurately adjusted without bubbles entering the adhesive layer interface between the window glass 102 and the liquid crystal panel 106. Can be bonded well.
  • the bonding method and the bonding apparatus 10 of the embodiment even when the window glass 102 is warped, even when the warp is generated during the bonding, between the window glass 102 and the liquid crystal panel 106. Bonding can be performed without air bubbles entering the adhesive layer interface. Therefore, according to the embodiment, the liquid crystal panel 106 is bonded to the window glass 102 of the building, and this is particularly effective in the on-site bonding that constitutes the image display device.
  • the transparent surface material 110 for example, glass
  • the first adhesive layer for example, glass
  • the object to be bonded to the second substrate such as the liquid crystal panel 106 is not the window glass 102 but the transparent surface material 110. Although it becomes a 2nd surface, the other process is the same.
  • the reinforcement member 15 in the non-bonding surface of the window glass 102 in a bonding process.
  • production of the curvature of the window glass 102 can be suppressed.
  • the liquid crystal panel 106 can be bonded with high accuracy without bubbles entering the adhesive layer interface between the window glass 102 and the liquid crystal panel 106.
  • substrate bonding apparatus of this invention and the manufacturing method of a laminated body are examples which bond a liquid crystal panel (2nd board
  • the present invention is not limited to this, and it goes without saying that the first substrate can be applied to any of a vertical direction, a state inclined from the vertical direction, or a flat state.
  • the manufacturing method of a laminated body, and the manufacturing method of an image display apparatus even if it is a case where a curvature generate
  • a laminated body can be manufactured by bonding two substrates with high accuracy without air bubbles entering the adhesive interface between the substrate and the second substrate.

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Abstract

In order to accurately bond together two substrates without air bubbles entering the adhesive layer interface between the first substrate and the second substrate even when the first substrate is warped or when warping occurs during bonding, this substrate bonding device is provided with a flexible flat plate-shaped member 12 which holds a liquid crystal panel 106 by suction, a hanger unit 14 which suspends the flexible plate-shaped member 12 on a window glass 102, a curvature member 24 which causes the flexible plate-shaped member 12 to curve, and a roller 16 which presses from the back surface of the flexible plate-shaped member 12 towards the window glass 102 to apply a bonding load.

Description

基板の貼合装置及び積層体の製造方法並びに画像表示装置の製造方法Substrate laminating apparatus, laminate manufacturing method, and image display apparatus manufacturing method
 本発明は、基板の貼合装置及び積層体の製造方法並びに画像表示装置の製造方法に関する。 The present invention relates to a substrate bonding apparatus, a laminate manufacturing method, and an image display apparatus manufacturing method.
 粘着層を介して2枚の基板を貼合する際には、基板同士の間の粘着層界面に気泡を巻き込ませることなく貼合を行うことが密着貼合のために望まれている。特に、窓ガラスの被貼合面に、デジタルサイネージ用の画像表示パネルを貼合して画像表示装置を製造する場合には、巻き込んだ気泡が画質に悪影響を与えることから細心の注意が必要となる。 When bonding two substrates through an adhesive layer, it is desired for adhesion bonding that bonding is performed without entraining air bubbles at the interface between the substrates. In particular, when manufacturing an image display device by bonding an image display panel for digital signage to the surface to be bonded to the window glass, the entrained air bubbles have an adverse effect on the image quality, so great care must be taken. Become.
 2枚の基板の間の粘着層界面に気泡を巻き込まないように2枚の基板を密着させて貼合する装置としては、例えば特許文献1がある。 There is, for example, Patent Document 1 as an apparatus for adhering two substrates in close contact so as not to entrap bubbles at the adhesive layer interface between the two substrates.
 特許文献1の図3に示す貼合装置によれば、ワーク支持構造に吸着保持される第1ワーク(第1の基板)と、可動テーブルに吸着保持される第2ワーク(第2の基板)とを、所定の貼合隙間を介して正対させ、第1ワークをローラ機構で第2ワークに押し付けて貼合を行なう基板貼合装置であって、ローラ機構は、両ワークの貼合始端から貼合終端の間を往復移動する駆動台と、駆動台で昇降可能に支持されるローラ支持枠と、それぞれローラ支持枠で回転自在に軸支されるメインローラ、およびメインローラの周面2個所を支持する中間ローラと、中間ローラを介してメインローラを押圧操作する押圧構造と、を含み、押圧構造が、メインローラの中心軸に沿って一定間隔おきに配置される複数個の押圧台と、各押圧台で回転自在に軸支される複数個の矯正ローラと、各押圧台と駆動台との間に設けられるエアーシリンダとを含み、メインローラが複数個のエアーシリンダで、矯正ローラと中間ローラを介して浮動支持して構成されている。このように、メインローラの中心軸に沿って一定間隔で配置された押圧構造によって、基板(第1ワーク)の貼合面に湾曲手段やうねりなどがある場合でも、機能性シート(第2ワーク)などの貼合対象を密着貼合できるとされている。 According to the bonding apparatus shown in FIG. 3 of Patent Document 1, the first work (first substrate) sucked and held by the work support structure and the second work (second substrate) sucked and held by the movable table. Is a substrate bonding apparatus that performs bonding by pressing a first workpiece against a second workpiece with a roller mechanism, and the roller mechanism is a bonding start end of both workpieces. A driving base that reciprocates between the bonding ends, a roller support frame that is supported by the driving base so as to be movable up and down, a main roller that is rotatably supported by the roller support frame, and a peripheral surface 2 of the main roller. A plurality of pressing tables, each of which includes an intermediate roller that supports the portion and a pressing structure that presses the main roller via the intermediate roller, the pressing structures being arranged at regular intervals along the central axis of the main roller And pivotally supported by each press stand A plurality of correction rollers and an air cylinder provided between each pressing table and the drive table, and the main roller is a plurality of air cylinders and is supported by floating through the correction roller and the intermediate roller. ing. As described above, even if there is a bending means or a swell on the bonding surface of the substrate (first workpiece) due to the pressing structure arranged at regular intervals along the central axis of the main roller, the functional sheet (second workpiece) ) And other objects to be bonded.
特許第5177909号公報Japanese Patent No. 5177909
 ところで、ガラス板等の第1の基板は、完全な平坦面ではなく、微小な反りを有していることがある。例えば、2m×1mサイズの第1の基板の場合、1mm程度の反りがあり、この程度の反りであっても密着貼合を阻害する。また、第1の基板に反りがない場合でも、貼合する際の貼合荷重によって第1の基板に反りが発生する場合もある。したがって、第1の基板の反り対策は、基板貼合における重要な課題になる。 By the way, the first substrate such as a glass plate may not have a completely flat surface but may have a slight warp. For example, in the case of a first substrate having a size of 2 m × 1 m, there is a warp of about 1 mm, and even this warp inhibits the adhesion bonding. Moreover, even when there is no curvature in the first substrate, the first substrate may be warped due to a bonding load at the time of bonding. Therefore, the countermeasure against warping of the first substrate becomes an important issue in substrate bonding.
 しかしながら、例えばビルの窓ガラス(以下、この窓ガラスを第1の基板とも称する。)に、画像表示パネル(以下、この画像表示パネルを第2の基板とも称する。)を貼合する場合、いわゆる現場貼合の場合には、引用文献1の貼合装置を使って貼合することは困難である。なぜなら、ビルの窓ガラスを引用文献1の貼合装置のワーク支持構造に吸着保持できないので、引用文献1の貼合装置を使えないからである。 However, for example, when an image display panel (hereinafter, this image display panel is also referred to as a second substrate) is bonded to a building window glass (hereinafter, this window glass is also referred to as a first substrate). In the case of field bonding, it is difficult to bond using the bonding apparatus of the cited reference 1. This is because the window glass of a building cannot be adsorbed and held on the work support structure of the bonding apparatus of the cited document 1, and therefore the bonding apparatus of the cited document 1 cannot be used.
 本発明は、このような事情に鑑みてなされたものであり、第1の基板に反りがある場合や貼合時に反りが発生した場合であっても第1の基板と第2の基板との間の粘着層界面に気泡が入り込むことなく2枚の基板を精度良く貼合することができる貼合装置、例えばビル等の窓ガラスにデジタルサイネージ用の画像表示パネルを貼合する現場貼合において特に有効な基板の貼合装置及び積層体の製造方法並びに画像表示装置の製造方法を提供することを目的とする。 This invention is made | formed in view of such a situation, Even if it is a case where a 1st board | substrate has a curvature or a case where a curvature generate | occur | produces at the time of bonding, a 1st board | substrate and a 2nd board | substrate. In the pasting device which can paste two substrates with high accuracy without air bubbles entering the adhesive layer interface between them, for example, on-site bonding to bond the image display panel for digital signage to the window glass of buildings, etc. It aims at providing the manufacturing method of the bonding apparatus of a board | substrate especially effective, a laminated body, and an image display apparatus.
 本発明の一態様の基板の貼合装置は、水平面に対して鉛直方向又は鉛直方向から傾斜して設けられている第1の基板に粘着層を介して第2の基板を貼合する基板の貼合装置において、前記第2の基板を吸着固定する弾性変形可能な可撓性板状部材と、前記第1の基板に前記可撓性板状部材を支持させる支持部材と、前記可撓性板状部材を湾曲させる部材と、前記可撓性板状部材を押圧し、前記第2の基板を前記第1の基板に貼合する押圧部材と、を備えたことを特徴とする。 The board | substrate bonding apparatus of 1 aspect of this invention is a board | substrate which bonds the 2nd board | substrate through the adhesion layer to the 1st board | substrate provided inclining from a perpendicular direction or a perpendicular direction with respect to a horizontal surface. In the bonding apparatus, an elastically deformable flexible plate-like member that adsorbs and fixes the second substrate, a support member that supports the flexible plate-like member on the first substrate, and the flexibility A member for bending the plate member, and a pressing member for pressing the flexible plate member and bonding the second substrate to the first substrate are provided.
 本発明の一態様の積層体の製造方法は、第2の基板を、吸着部材を有し弾性変形可能な可撓性板状部材に固定する工程と、前記可撓性板状部材を水平面に対して鉛直方向又は鉛直方向から傾斜して設けられている第1の基板に支持部材により支持する工程と、前記可撓性板状部材を湾曲させることにより前記第2の基板を前記第1の基板に対して凸状に湾曲させる湾曲工程と、押圧部材で前記可撓性板状部材を押圧し前記可撓性板状部材の湾曲を貼合方向に向かって矯正させて前記第2の基板の湾曲を貼合方向に向かって矯正して前記第2の基板を前記第1の基板に粘着層を介して貼合する貼合工程と、を備えたことを特徴とする。
 本発明の一態様の画像表示装置の製造方法は、第1の基板が窓ガラスであり、第2の基板が画像表示パネルであって、前記した積層体の製造方法により前記窓ガラスと前記画像表示パネルとを貼合せることを特徴とする。
The manufacturing method of the laminated body of 1 aspect of this invention WHEREIN: The process which fixes a 2nd board | substrate to the flexible plate-shaped member which has an adsorbing member and can be elastically deformed, and the said flexible plate-shaped member on a horizontal surface In contrast, a step of supporting the first substrate that is provided in a vertical direction or inclined from the vertical direction by a support member, and bending the second plate by bending the flexible plate member. A bending step of bending the substrate in a convex shape, and pressing the flexible plate member with a pressing member to correct the bending of the flexible plate member in the bonding direction, thereby the second substrate. And a bonding step of correcting the second curve toward the bonding direction and bonding the second substrate to the first substrate via an adhesive layer.
In the method for manufacturing an image display device of one embodiment of the present invention, the first substrate is a window glass, the second substrate is an image display panel, and the window glass and the image are manufactured by the method for manufacturing a laminate. It is characterized by being bonded to a display panel.
 本発明の貼合装置、積層体の製造方法および画像表示装置の製造方法では、第2の基板に直接貼合荷重を付与するのではなく、第2の基板を可撓性板状部材に保持することにより、可撓性板状部材を介して貼合荷重を付与するようにした。 In the bonding apparatus, the laminate manufacturing method, and the image display apparatus manufacturing method of the present invention, the second substrate is not directly applied to the second substrate but is held on the flexible plate member. By doing so, the bonding load was applied via the flexible plate-like member.
 これにより、第1の基板に反りがあっても反りに追従し易くなるので、密着貼合を行うことができる。 Thus, even if the first substrate is warped, it becomes easy to follow the warp, so that the adhesion bonding can be performed.
 以上説明したように、本発明の貼合装置および積層体の製造方法並びに画像表示装置の製造方法によれば、第1の基板に反りがある場合や貼合時に反りが発生した場合であっても、第1の基板と第2の基板との間の粘着層界面に気泡が入り込むことなく2枚の基板を精度良く貼合することができる。 As explained above, according to the bonding apparatus and the manufacturing method of the laminate and the manufacturing method of the image display apparatus of the present invention, when the first substrate is warped or when warping occurs during bonding, In addition, the two substrates can be bonded with high accuracy without bubbles entering the adhesive layer interface between the first substrate and the second substrate.
画像表示装置の縦断面図Vertical section of image display device 図1のA部の拡大断面図Enlarged sectional view of part A in FIG. (A)は貼合装置の正面図、(B)は貼合装置の側面図(A) is a front view of the bonding apparatus, (B) is a side view of the bonding apparatus. (A)は貼合装置の正面図、(B)は貼合装置の側面図(A) is a front view of the bonding apparatus, (B) is a side view of the bonding apparatus. 可撓性板状部材の断面図Cross-sectional view of flexible plate member 粘着部材を備えた可撓性板状部材の断面図Sectional drawing of flexible plate-like member provided with adhesive member (A)~(D)は粘着部材の配置形態を示した可撓性板状部材の平面図(A)-(D) is a plan view of a flexible plate-like member showing the arrangement of adhesive members 可撓性ローラによる貼合荷重分布の説明図Explanatory drawing of bonding load distribution by flexible roller 図3(A)のC-C’線からみた矢視図View from arrow C-C 'in Fig. 3 (A) 可撓性ローラによる貼合状況を示した要部側面図Side view of the main part showing the state of bonding with a flexible roller 湾曲手段の説明図Explanatory drawing of bending means 補強部材の態様例の斜視図The perspective view of the example of an aspect of a reinforcement member 補強部材の態様例の斜視図The perspective view of the example of an aspect of a reinforcement member 補強部材の態様例の斜視図The perspective view of the example of an aspect of a reinforcement member 現場貼合における貼合装置の組み立て手順を示した説明図Explanatory drawing which showed the assembly procedure of the bonding apparatus in the field bonding 現場貼合における貼合装置の組み立て手順を示した説明図Explanatory drawing which showed the assembly procedure of the bonding apparatus in the field bonding 現場貼合における貼合装置の組み立て手順を示した説明図Explanatory drawing which showed the assembly procedure of the bonding apparatus in the field bonding 貼合時のスポンジ部材の説明図Explanatory drawing of sponge member at the time of pasting 現場貼合における貼合装置の組み立て手順を示した説明図Explanatory drawing which showed the assembly procedure of the bonding apparatus in the field bonding 現場貼合における貼合装置の組み立て完成図Assembly completed drawing of the bonding device in the field bonding 現場貼合における貼合工程を時系列的に示した説明図Explanatory drawing which showed the pasting process in field pasting in time series
 以下、添付図面に従って本発明に係る基板の貼合装置及び積層体の製造方法並びに画像表示装置の製造方法の好ましい実施形態について説明する。 Hereinafter, preferred embodiments of a substrate bonding apparatus, a laminate manufacturing method, and an image display apparatus manufacturing method according to the present invention will be described with reference to the accompanying drawings.
 まず、実施形態の基板の貼合装置及び積層体の製造方法を利用した画像表示装置の製造方法で製造された画像表示装置について説明する。 First, an image display device manufactured by an image display device manufacturing method using the substrate bonding apparatus and the laminate manufacturing method of the embodiment will be described.
 図1は、画像表示装置100の縦断面図、図2は、図1のA部の拡大断面図である。 FIG. 1 is a longitudinal sectional view of the image display device 100, and FIG. 2 is an enlarged sectional view of a portion A in FIG.
 〈画像表示装置〉
 画像表示装置100は、第1の基板である窓ガラス102、第1の粘着層114、透明面材であるガラス板110、第2の粘着層116、及び第2の基板である液晶パネル106の順に積層して構成される。以下、各部材について説明する。
<Image display device>
The image display device 100 includes a window glass 102 that is a first substrate, a first adhesive layer 114, a glass plate 110 that is a transparent surface material, a second adhesive layer 116, and a liquid crystal panel 106 that is a second substrate. It is constructed by stacking in order. Hereinafter, each member will be described.
 (第1の基板)
 第1の基板としては、透明部材を例示できる。例えば店舗、オフィス等に用いられる既設の透明部材が挙げられる。透明部材としては、ガラス、アクリルなどの樹脂または、ガラスと樹脂の積層体等が挙げられる。ガラスとしては、単板のガラス、合わせガラスおよび複層ガラスが挙げられる。
(First substrate)
An example of the first substrate is a transparent member. For example, the existing transparent member used for a store, an office, etc. is mentioned. Examples of the transparent member include a resin such as glass and acrylic, or a laminate of glass and resin. Examples of the glass include single plate glass, laminated glass, and multilayer glass.
 (透明面材)
 透明面材110は、後述する液晶パネル106を窓ガラス102に貼合する際に、液晶パネル106と窓ガラス102との間に介在される板状体である。透明面材の例として、ガラス板、樹脂板等が挙げられる。液晶パネル106からの射出光や反射光に対して透明性が高い点はもちろん、耐光性、低複屈折性、高い平面精度、耐表面擦傷性、高い機械的強度を有する観点から、透明面材110としてガラス板を用いることが最も好ましい。透明面材として、第1の粘着層114及び第2の粘着層116を構成する光硬化性樹脂組成物を硬化させる光に対して高い透過率を有する観点でも、ガラス板の使用が好ましい。
 図1において、窓ガラス102と、透明面材110としてのガラス板とが第1の粘着層114により積層された構造体は、本発明における第1の基板に該当する。
(Transparent surface material)
The transparent face member 110 is a plate-like body interposed between the liquid crystal panel 106 and the window glass 102 when the liquid crystal panel 106 described later is bonded to the window glass 102. Examples of the transparent face material include a glass plate and a resin plate. From the viewpoint of having high light resistance, low birefringence, high planar accuracy, surface scratch resistance, and high mechanical strength as well as high transparency with respect to light emitted from the liquid crystal panel 106 and reflected light, a transparent surface material It is most preferable to use a glass plate as 110. As a transparent face material, the use of a glass plate is also preferred from the viewpoint of having a high transmittance with respect to light for curing the photocurable resin composition constituting the first adhesive layer 114 and the second adhesive layer 116.
In FIG. 1, the structure in which the window glass 102 and the glass plate as the transparent surface material 110 are laminated by the first adhesive layer 114 corresponds to the first substrate in the present invention.
 前記ガラス板の例として、ソーダライムガラス等のガラス材料が挙げられる。また、前記樹脂板の例としては、ポリカーボネート、ポリメチルメタクリレート等の透明性の高い樹脂材料が挙げられる。 Examples of the glass plate include glass materials such as soda lime glass. Examples of the resin plate include highly transparent resin materials such as polycarbonate and polymethyl methacrylate.
 透明面材110の形状は、貼合対象である液晶パネル106の平面形状に合わせて決定すればよく、一例として矩形である。透明面材110の厚さは、機械的強度、透明性等の点から、ガラス板であれば、0.2~2.0mm程度が好ましい。観察者に表示画像の奥行き感を強く感じさせないためには、透明面材110の厚さは、0.2~1.1mm程度がより好ましい。樹脂板であれば、透明面材110の厚さは、0.1~1.0mm程度が好ましい。 The shape of the transparent surface material 110 may be determined according to the planar shape of the liquid crystal panel 106 to be bonded, and is rectangular as an example. The thickness of the transparent face member 110 is preferably about 0.2 to 2.0 mm in the case of a glass plate in view of mechanical strength, transparency, and the like. In order not to make the observer feel a strong sense of depth in the displayed image, the thickness of the transparent face member 110 is more preferably about 0.2 to 1.1 mm. In the case of a resin plate, the thickness of the transparent face member 110 is preferably about 0.1 to 1.0 mm.
 (遮光部)
 透明面材110は、周端部に遮光部112を有することが好ましい。遮光部を備えることで、液晶パネル106を窓ガラス102に貼合した際に、液晶パネル106に接続されたフレキシブルプリント配線板等の配線部材等を隠すことができる。透明面材がガラス板の場合、黒色顔料を含むセラミック塗料組成物をセラミック印刷等の印刷法を用いて遮光部を形成することが、遮光性を高くする上で好ましい。なお、遮光部は、種々の薄膜形成法を用いて形成できる。
(Shading part)
The transparent surface material 110 preferably has a light shielding portion 112 at the peripheral end portion. By providing the light shielding portion, when the liquid crystal panel 106 is bonded to the window glass 102, a wiring member such as a flexible printed wiring board connected to the liquid crystal panel 106 can be hidden. In the case where the transparent surface material is a glass plate, it is preferable to form a light shielding part by using a printing method such as ceramic printing with a ceramic coating composition containing a black pigment, in order to increase the light shielding property. The light shielding portion can be formed using various thin film forming methods.
 (粘着層)
 粘着層は、液状の光硬化性樹脂組成物を硬化させた透明樹脂から構成されている。粘着層の原料となる光硬化性樹脂組成物は、光硬化性を有する硬化性化合物、光重合開始剤、及び、必要に応じて非硬化性オリゴマーを含む液状の組成物が好ましい。非硬化性オリゴマーは、光硬化性樹脂組成物の硬化時に組成物中の硬化性化合物と硬化反応を生じない水酸基を有するオリゴマーが好ましい。第1の粘着層114および第2の粘着層116の透明樹脂は、同一でも異なってもよい。
(Adhesive layer)
The pressure-sensitive adhesive layer is made of a transparent resin obtained by curing a liquid photocurable resin composition. The photocurable resin composition that is a raw material for the adhesive layer is preferably a liquid composition containing a photocurable curable compound, a photopolymerization initiator, and, if necessary, a non-curable oligomer. The non-curable oligomer is preferably an oligomer having a hydroxyl group that does not cause a curing reaction with the curable compound in the composition when the photo-curable resin composition is cured. The transparent resin of the first adhesive layer 114 and the second adhesive layer 116 may be the same or different.
 粘着層の厚さは、0.1~2.0mm程度が好ましく、0.2~0.8mm程度がより好ましい。第1の粘着層114および第2の粘着層116の厚さは、同一でもよく異なってもよい。 The thickness of the adhesive layer is preferably about 0.1 to 2.0 mm, more preferably about 0.2 to 0.8 mm. The thickness of the first adhesive layer 114 and the second adhesive layer 116 may be the same or different.
 第1の粘着層114と第2の粘着層116との面積は、透明面材の大きさに応じて調整される。第1の粘着層114および第2の粘着層116の面積は、同一でもよく異なってもよい。面積が異なる場合の例としては、ガラス板110の第2の面110bに遮光部112を有する場合に、第1の粘着層114がガラス板110の第1の面110aの全域に設けられているのに対し、第2の粘着層116がガラス板110の第2の面110bの一部の領域に設けられている。これにより、ガラス板110の第2の面110bは、第2の粘着層116が設けられた領域と、第2の粘着層116が設けられていない領域と、を有する。 The areas of the first adhesive layer 114 and the second adhesive layer 116 are adjusted according to the size of the transparent surface material. The areas of the first adhesive layer 114 and the second adhesive layer 116 may be the same or different. As an example of the case where the areas are different, when the second surface 110b of the glass plate 110 has the light shielding portion 112, the first adhesive layer 114 is provided over the entire area of the first surface 110a of the glass plate 110. On the other hand, the second adhesive layer 116 is provided in a partial region of the second surface 110 b of the glass plate 110. Thereby, the 2nd surface 110b of the glass plate 110 has the area | region in which the 2nd adhesion layer 116 was provided, and the area | region in which the 2nd adhesion layer 116 was not provided.
 第2の基板としては、例えば、液晶ディスプレイパネル(LCD:Liquid Crystal Display)、プラズマディスプレイパネル(PDP:Plasma Display Panel)、有機ELディスプレイパネル(OELD:Organic Electro Luminescence Display)等の画像表示パネルを挙げることができる。 Examples of the second substrate include image display panels such as a liquid crystal display panel (LCD), a plasma display panel (PDP), and an organic EL display panel (OELD: Organic Electro Luminescence Display). be able to.
 図2に示すように、液晶表示ユニット104は、液晶パネル106と、一対の偏光板122、124と、バックライト126と、フレーム128と、ケース130と、を備える。液晶パネル106は、一対のガラス基板132、134と、これらガラス基板132、134の間に封入された液晶(不図示)と、を備える。一対のガラス基板132、134は、薄膜トランジスタ(Thin Film Transistor)を備えたTFT素子基板と、カラーフィルターを備えたカラーフィルター基板と、から構成される。 2, the liquid crystal display unit 104 includes a liquid crystal panel 106, a pair of polarizing plates 122 and 124, a backlight 126, a frame 128, and a case 130. The liquid crystal panel 106 includes a pair of glass substrates 132 and 134 and liquid crystal (not shown) sealed between the glass substrates 132 and 134. The pair of glass substrates 132 and 134 includes a TFT element substrate provided with a thin film transistor (Thin 基板 FilmTransistor) and a color filter substrate provided with a color filter.
 バックライト126は、発光ダイオード等の発光素子136と、導光板138と、プリズムシート(不図示)と、光拡散シート等の複数の光学フィルム140と、ミラー142と、を備える。発光素子136から射出された光は、導光板138に入射して内部を導光する間にミラー142で反射し、複数の光学フィルム140を介して液晶パネル106に向けて射出される。複数の光学フィルム140は、導光板138から射出された光の強度を均一化する機能を有する。そのため、複数の光学フィルム140と液晶パネル106とは、間隔をおいて配置されている。 The backlight 126 includes a light emitting element 136 such as a light emitting diode, a light guide plate 138, a prism sheet (not shown), a plurality of optical films 140 such as a light diffusion sheet, and a mirror 142. Light emitted from the light emitting element 136 is incident on the light guide plate 138 and reflected by the mirror 142 while being guided inside, and is emitted toward the liquid crystal panel 106 via the plurality of optical films 140. The plurality of optical films 140 have a function of making the intensity of light emitted from the light guide plate 138 uniform. Therefore, the plurality of optical films 140 and the liquid crystal panel 106 are arranged at intervals.
 液晶パネル106は、粘着層または粘着層とガラス板110を介して窓ガラス102に支持される。液晶パネル106とバックライト126とは独立しているため、バックライト126は、液晶パネル106とは別に窓ガラス102に支持される。 The liquid crystal panel 106 is supported by the window glass 102 via an adhesive layer or an adhesive layer and a glass plate 110. Since the liquid crystal panel 106 and the backlight 126 are independent, the backlight 126 is supported by the window glass 102 separately from the liquid crystal panel 106.
 バックライト126は、断面がL字状のアングル144を介して窓ガラス102に支持される。図1では、アングル144は、ガラス板110の第2の面110b上の遮光部112に両面粘着テープ146によって固定されている。すなわち、バックライト126は、フレーム128に固定され、フレーム128は、ケース130に固定され、ケース130は、ボルト148によってアングル144に固定され、アングル144が遮光部112に固定されている。これにより、バックライト126は、ガラス板110を介して窓ガラス102に支持される。 The backlight 126 is supported by the window glass 102 via an angle 144 whose section is L-shaped. In FIG. 1, the angle 144 is fixed to the light shielding portion 112 on the second surface 110 b of the glass plate 110 with a double-sided adhesive tape 146. That is, the backlight 126 is fixed to the frame 128, the frame 128 is fixed to the case 130, the case 130 is fixed to the angle 144 by the bolt 148, and the angle 144 is fixed to the light shielding unit 112. Thereby, the backlight 126 is supported by the window glass 102 through the glass plate 110.
 《本発明の基板の貼合装置及び積層体の製造方法》
 次に、本発明の基板の貼合装置及び積層体の製造方法について説明する。
<< The board | substrate bonding apparatus of this invention, and the manufacturing method of a laminated body >>
Next, the board | substrate bonding apparatus of this invention and the manufacturing method of a laminated body are demonstrated.
 本発明は、第1の基板の表面(貼合面)に粘着層を介して第2の基板の表面(貼合面)を貼合する積層体の製造方法及び貼合装置であり、第1の基板及び第2の基板を特に限定するものではないが、上述したように、第1の基板として窓ガラス、第2の基板として画像表示パネルを適用することが好ましい。 This invention is the manufacturing method and bonding apparatus of a laminated body which bond the surface (bonding surface) of a 2nd board | substrate through the adhesion layer to the surface (bonding surface) of a 1st board | substrate, and are 1st. Although the substrate and the second substrate are not particularly limited, as described above, it is preferable to apply the window glass as the first substrate and the image display panel as the second substrate.
 本発明の基板の貼合装置及び積層体の製造方法は、第1の基板が鉛直方向又は鉛直方向から傾斜した状態、あるいは水平方向の状態の何れにも適用することができる。さらに、第2の基板の形状は、限定されない。第2の基板の形状は、円形、矩形または正方形等とすることができ、矩形の場合には、縦横の比は、特に限定されず、縦長または横長でもよい。 The substrate bonding apparatus and the laminate manufacturing method of the present invention can be applied to either the vertical direction, the state where the first substrate is inclined from the vertical direction, or the state in the horizontal direction. Furthermore, the shape of the second substrate is not limited. The shape of the second substrate can be a circle, a rectangle, a square, or the like. In the case of a rectangle, the aspect ratio is not particularly limited, and may be a portrait or landscape.
 実施形態では、図1~図2に基づき、建築物に固定された既設の窓ガラス102(第1の基板)に粘着層を介して液晶パネル106(第2の基板)を貼合して、窓ガラス102、第1の粘着層114、透明面材110、第2の粘着層116および、液晶パネル106の順で有する画像表示装置を製造する一例で説明する。また、窓ガラス102は、鉛直方向に配置されているものとする。また、貼合される液晶パネル106の画面サイズは、一例として42インチである。なお、実施形態では、窓ガラス102と透明面材110との貼合を省略した貼合方法について説明する。 In the embodiment, a liquid crystal panel 106 (second substrate) is bonded to an existing window glass 102 (first substrate) fixed to a building through an adhesive layer based on FIGS. An example of manufacturing an image display device having the window glass 102, the first adhesive layer 114, the transparent surface material 110, the second adhesive layer 116, and the liquid crystal panel 106 in this order will be described. Moreover, the window glass 102 shall be arrange | positioned in the perpendicular direction. The screen size of the liquid crystal panel 106 to be bonded is 42 inches as an example. In addition, in embodiment, the bonding method which abbreviate | omitted bonding with the window glass 102 and the transparent surface material 110 is demonstrated.
 〔貼合装置〕
 図3(A)は、実施形態の貼合装置10を用いて矩形状の液晶パネル106を、窓枠(図示せず)に固定された窓ガラス102に貼合するために、貼合装置10を窓ガラス102に着脱自在に支持させた正面図であり、図3(B)は、(A)の側面図である。
[Bonding equipment]
FIG. 3A shows a bonding apparatus 10 for bonding a rectangular liquid crystal panel 106 to a window glass 102 fixed to a window frame (not shown) using the bonding apparatus 10 of the embodiment. Is a front view in which the window glass 102 is detachably supported, and FIG. 3B is a side view of FIG.
 図3(A)および(B)に示すように、貼合装置10は、可撓性板状部材12、支持部材であるハンガーユニット14、押圧部材であるローラ16、及び湾曲させる部材24を備えて構成される。本実施形態の貼合装置10では、任意構成であるローラ支持部18と、ローラ16に貼合荷重を付与する伸縮性の貼合荷重調整機構部20を備えた押圧部22を備えた形態として説明する。 As shown in FIGS. 3A and 3B, the bonding apparatus 10 includes a flexible plate-like member 12, a hanger unit 14 that is a support member, a roller 16 that is a pressing member, and a member 24 that is curved. Configured. In the bonding apparatus 10 of this embodiment, as the form provided with the press part 22 provided with the roller support part 18 which is arbitrary structures, and the elastic bonding load adjustment mechanism part 20 which provides the bonding load to the roller 16. FIG. explain.
 先ず、貼合装置10の各構成要素について説明する。 First, each component of the bonding apparatus 10 will be described.
 〈可撓性板状部材〉
 本実施の形態において、可撓性板状部材12は、弾性変形可能であり、矩形状の液晶パネル106の裏面(非貼合面)を固定する平坦な部材である。可撓性板状部材12は、液晶パネル106の面積サイズよりも大きな面積サイズに構成される。
<Flexible plate member>
In the present embodiment, the flexible plate-like member 12 is a flat member that can be elastically deformed and fixes the back surface (non-bonding surface) of the rectangular liquid crystal panel 106. The flexible plate-like member 12 is configured to have a larger area size than the area size of the liquid crystal panel 106.
 液晶パネル106を固定する可撓性板状部材12の固定手段として、本実施の形態では、吸着固定の例と、吸着固定および粘着固定を併用する例とを説明する。 As the fixing means for the flexible plate-like member 12 that fixes the liquid crystal panel 106, in this embodiment, an example of adsorption fixing and an example of using both adsorption fixing and adhesive fixing will be described.
 図5は、可撓性板状部材12の縦断面図である。 FIG. 5 is a longitudinal sectional view of the flexible plate-like member 12.
 図5の如く、可撓性板状部材12は、矩形状の可撓板26、可撓板26の周面部に貼り合わされた額縁状の独立気泡のスポンジ部材28、及びスポンジ部材28の内周側の可撓板26に貼り合わされた矩形状の多孔性シート30によって構成される。 As shown in FIG. 5, the flexible plate-like member 12 includes a rectangular-shaped flexible plate 26, a frame-like closed-cell sponge member 28 bonded to the peripheral surface portion of the flexible plate 26, and the inner periphery of the sponge member 28. The rectangular porous sheet 30 is bonded to the flexible plate 26 on the side.
 額縁状のスポンジ部材28と多孔性シート30との間は、額縁状の隙間32が形成される。スポンジ部材28及び多孔性シート30は、可撓板26に接着剤(又は両面接着テープ)34を用いて貼り付けられる。 A frame-shaped gap 32 is formed between the frame-shaped sponge member 28 and the porous sheet 30. The sponge member 28 and the porous sheet 30 are attached to the flexible plate 26 using an adhesive (or double-sided adhesive tape) 34.
 可撓板26の内部には、一端が隙間32に連通され、他端が複数の吸引ポート36(図3(A)参照)に連通される吸引路35が備えられる。吸引ポート36は、可撓板26の両端部(液晶パネル106を吸着しない部分)に複数備えられ、これらの吸引ポート36は、吸引ホース38を介して真空ポンプ40に接続される。 Inside the flexible plate 26, there is provided a suction path 35 having one end communicating with the gap 32 and the other end communicating with a plurality of suction ports 36 (see FIG. 3A). A plurality of suction ports 36 are provided at both ends of the flexible plate 26 (portions that do not adsorb the liquid crystal panel 106). These suction ports 36 are connected to the vacuum pump 40 via suction hoses 38.
 図5に戻り説明すると、可撓性板状部材12に液晶パネル106を吸着固定する際には、液晶パネル106の周面をスポンジ部材28に載置して、額縁状の隙間32の上面を液晶パネル106によって閉塞する。この状態で、真空ポンプ40を駆動させて、吸引ホース38、吸引ポート36、吸引路35、及び隙間32を介して空気を吸引する。これにより、多孔性シート30の吸着面30Aに吸着力が発生し、吸着面30Aに液晶パネル106を吸着固定する。 Returning to FIG. 5, when the liquid crystal panel 106 is attracted and fixed to the flexible plate member 12, the peripheral surface of the liquid crystal panel 106 is placed on the sponge member 28, and the upper surface of the frame-like gap 32 is covered. The liquid crystal panel 106 closes. In this state, the vacuum pump 40 is driven to suck air through the suction hose 38, the suction port 36, the suction path 35, and the gap 32. Thereby, an adsorption force is generated on the adsorption surface 30A of the porous sheet 30, and the liquid crystal panel 106 is adsorbed and fixed on the adsorption surface 30A.
 多孔性シート30の厚さは、2mm以下であることが好ましく、1mm以下(例えば0.5mm)であることがより好ましい。また、スポンジ部材28の厚さは、多孔性シート30の厚さよりも厚いことが好ましい。そして、スポンジ部材28は、液晶パネル106を吸着固定した際に弾性変形して多孔性シート30の厚さまで弾性変形することが好ましい。これにより、隙間32を確実に閉空間とすることができるので、吸着面30Aの液晶パネル106に対する吸着力が増大し、可撓性板状部材12に液晶パネル106を充分に吸着固定できる。 The thickness of the porous sheet 30 is preferably 2 mm or less, and more preferably 1 mm or less (for example, 0.5 mm). Further, the thickness of the sponge member 28 is preferably thicker than the thickness of the porous sheet 30. The sponge member 28 is preferably elastically deformed to the thickness of the porous sheet 30 when the liquid crystal panel 106 is fixed by suction. Thereby, since the gap 32 can be surely closed, the suction force of the suction surface 30 </ b> A to the liquid crystal panel 106 is increased, and the liquid crystal panel 106 can be sufficiently sucked and fixed to the flexible plate member 12.
 多孔性シート30は、導電性を有することが好ましい。後述する粘着層の面に貼り付けられた剥離シートを剥離する際や、貼合後に可撓性板状部材12と液晶パネル106とを取り外す際等において、静電気の発生を抑えることができる。 The porous sheet 30 preferably has conductivity. Generation of static electricity can be suppressed when a release sheet attached to the surface of the adhesive layer described later is peeled off or when the flexible plate member 12 and the liquid crystal panel 106 are removed after bonding.
 また、可撓板26は、弾性変形できることが必要である。このような可撓板26としては、例えば厚さが2mm以上、3mm以下の塩化ビニル樹脂板が好適である。この場合、一枚の塩化ビニル樹脂板でもよいが、図5のように、厚さが2mmの塩化ビニル樹脂板26Aと厚さが0.5mmの塩化ビニル樹脂板26Bとを接着剤(あるいは両面接着テープ)42で貼り合わせて構成することもできる。可撓板26の多孔性シート30の貼り合わせた面の反対側の面に導電性シート(図示しない)を貼り合わせることが好ましい。これにより、貼合時等において、静電気の発生を抑えることができる。 Also, the flexible plate 26 needs to be elastically deformable. As such a flexible plate 26, for example, a vinyl chloride resin plate having a thickness of 2 mm or more and 3 mm or less is suitable. In this case, a single vinyl chloride resin plate may be used, but as shown in FIG. 5, a vinyl chloride resin plate 26A having a thickness of 2 mm and a vinyl chloride resin plate 26B having a thickness of 0.5 mm are bonded with an adhesive (or both surfaces). An adhesive tape) 42 can also be used. A conductive sheet (not shown) is preferably bonded to the surface of the flexible plate 26 opposite to the bonded surface of the porous sheet 30. Thereby, generation | occurrence | production of static electricity can be suppressed at the time of bonding etc.
 (粘着部材)
 図6の如く可撓性板状部材12には粘着部材88が設けられることが好ましい。図6は、粘着部材88を備えた可撓性板状部材12の断面図である。図6は、図5に示した可撓性板状部材12の断面図と対応している。図6では、粘着部材88は、スポンジ部材28と多孔性シート30との間の額縁状の隙間32に配置される。具体的には、隙間32において、不図示の両面接着テープを介して塩化ビニル樹脂板26Bに接着されている。また、前記両面接着テープの厚さを含む粘着部材88の厚さは、多孔性シート30の厚さと接着剤34の厚さとを合算した厚さに設定されている。
(Adhesive material)
As shown in FIG. 6, the flexible plate-like member 12 is preferably provided with an adhesive member 88. FIG. 6 is a cross-sectional view of the flexible plate member 12 including the adhesive member 88. 6 corresponds to the cross-sectional view of the flexible plate-like member 12 shown in FIG. In FIG. 6, the adhesive member 88 is disposed in the frame-shaped gap 32 between the sponge member 28 and the porous sheet 30. Specifically, the gap 32 is bonded to the vinyl chloride resin plate 26B via a double-sided adhesive tape (not shown). In addition, the thickness of the pressure-sensitive adhesive member 88 including the thickness of the double-sided adhesive tape is set to the total thickness of the porous sheet 30 and the adhesive 34.
 前記多孔性シート30の吸着面30Aの吸着力に加えて、粘着部材88の粘着力を併用すると、可撓性板状部材12に液晶パネル106を十分に固定できる。また、貼合中に可撓性板状部材12の撓み過ぎ等に起因して、多孔性シート30の吸着面30Aの吸着力が失われても、粘着部材88の粘着力により可撓性板状部材12が液晶パネル106から完全に外れることを防止できる。 The liquid crystal panel 106 can be sufficiently fixed to the flexible plate member 12 by using the adhesive force of the adhesive member 88 in addition to the attractive force of the adsorption surface 30A of the porous sheet 30. In addition, even if the adsorbing force of the adsorbing surface 30A of the porous sheet 30 is lost due to excessive bending of the flexible plate-like member 12 during bonding, the flexible plate is affected by the adhesive force of the adhesive member 88. It is possible to prevent the shaped member 12 from being completely detached from the liquid crystal panel 106.
 なお、液晶パネル106の貼合完了後には、前記真空吸着を解除し、可撓性板状部材12を液晶パネル106に対して撓ませることで、液晶パネル106から粘着部材88を容易に外すことができる。 In addition, after the bonding of the liquid crystal panel 106 is completed, the adhesive member 88 is easily removed from the liquid crystal panel 106 by releasing the vacuum suction and bending the flexible plate member 12 with respect to the liquid crystal panel 106. Can do.
 粘着部材88は、ショアA70以下の硬度を有するものが好ましい。また、粘着部材88は、表面粗さ(Ra)が0.2μm以下であるものが好ましい。粘着部材88の硬度は、JIS Z 2246(2000年)に準拠した試験方法にて測定した値である。粘着部材88の表面粗さ(Ra)は、JIS B 0601(2000年)に準拠した試験方法により測定した値である。上記の条件を満たす粘着部材88は、液晶パネル106に対して十分な粘着力を得ることができ、また、繰り返して吸着、剥離可能なので作業性が良好となる。このような粘着部材88としては、ウレタン製又はシリコン製などのゴムシートが好適に挙げられる。 The adhesive member 88 preferably has a hardness of Shore A 70 or less. The adhesive member 88 preferably has a surface roughness (Ra) of 0.2 μm or less. The hardness of the adhesive member 88 is a value measured by a test method based on JIS Z 2246 (2000). The surface roughness (Ra) of the adhesive member 88 is a value measured by a test method based on JIS B 0601 (2000). The pressure-sensitive adhesive member 88 that satisfies the above conditions can obtain a sufficient pressure-sensitive adhesive force with respect to the liquid crystal panel 106, and can be repeatedly adsorbed and peeled, so that workability is improved. As such an adhesive member 88, a rubber sheet made of urethane or silicon is preferably exemplified.
 図7(A)、(B)、(C)および(D)は、可撓性板状部材12に対する粘着部材88の配置形態を示した可撓性板状部材12の平面図であり、模式的に示している。 FIGS. 7A, 7 </ b> B, 7 </ b> C, and 7 </ b> D are plan views of the flexible plate-like member 12 showing the arrangement of the adhesive members 88 with respect to the flexible plate-like member 12. Is shown.
 隙間32に対する粘着部材88の配置形態の一例として、図7(A)に示した形態は、短冊状に構成した4枚の粘着部材88を、隙間32の4辺に沿って配置した形態である。この形態において粘着部材88は、矩形状の可撓性板状部材12の4辺に沿って配置される。 As an example of the arrangement form of the adhesive member 88 with respect to the gap 32, the form shown in FIG. 7A is a form in which four adhesive members 88 configured in a strip shape are arranged along the four sides of the gap 32. . In this embodiment, the adhesive member 88 is disposed along four sides of the rectangular flexible plate member 12.
 図7(B)に示した形態は、短冊状に構成した2枚の粘着部材88を、隙間32の対向する2辺に沿って配置した形態である。この形態において粘着部材88は、矩形状の可撓性板状部材12の2辺に沿って配置される。 The form shown in FIG. 7B is a form in which two adhesive members 88 configured in a strip shape are arranged along two opposing sides of the gap 32. In this embodiment, the adhesive member 88 is disposed along two sides of the rectangular flexible plate member 12.
 図7(C)に示した形態は、図7(B)の形態に対し、多孔性シート30を矩形のシートに2分割し、そのシート間の隙間32Aに、粘着部材88を追加配置した形態である。つまり、粘着部材88は、可撓性板状部材12の少なくとも2箇所に配置される。そして、可撓性板状部材12が矩形状の場合には、少なくとも2辺に配置される。 The form shown in FIG. 7C is a form in which the porous sheet 30 is divided into two rectangular sheets and an adhesive member 88 is additionally arranged in the gap 32A between the sheets in the form shown in FIG. 7B. It is. That is, the adhesive member 88 is disposed in at least two places on the flexible plate-like member 12. And when the flexible plate-shaped member 12 is rectangular shape, it arrange | positions at least at 2 sides.
 図7(D)に示した形態は、四角形状の4枚の粘着部材88を、隙間32の角部に沿って配置した形態である。この形態において粘着部材88は、矩形状の可撓性板状部材12の角部に配置される。角部に配置される粘着部材88の形状は、四角形状に限定されず、円形であっても多角形であってもよい。 7D is a form in which four rectangular adhesive members 88 are arranged along the corners of the gap 32. In the form shown in FIG. In this embodiment, the adhesive member 88 is disposed at a corner of the rectangular flexible plate member 12. The shape of the adhesive member 88 arranged at the corner is not limited to a quadrangular shape, and may be a circular shape or a polygonal shape.
 なお、粘着部材88の形態は、上記4形態に限定されるものではなく、配置位置、及び大きさ等は、粘着部材88が持つ粘着力、可撓性板状部材12及び液晶パネル106の大きさ、質量等によって適宜選択されるものである。 Note that the form of the adhesive member 88 is not limited to the above four forms, and the arrangement position, size, and the like are the adhesive strength of the adhesive member 88, the size of the flexible plate member 12 and the liquid crystal panel 106. It is appropriately selected depending on the mass and the like.
 〈支持部材〉
 図3に示す支持部材(支持手段)であるハンガーユニット14は、液晶パネル106を吸着固定した可撓性板状部材12を吊り下げ支持する部材である。また、ハンガーユニット14は、窓ガラス102に固定され、窓ガラス102の貼合位置に対し所定の貼合隙間を介して、液晶パネル106を正対させた状態で、可撓性板状部材12の鉛直方向の位置、傾き、及び水平方向の位置を調整できる冶具であることが好ましい。本実施の形態では、ハンガーユニット14が、水平方向の位置と鉛直方向の位置及び傾きを調整する冶具として説明する。
<Supporting member>
The hanger unit 14 that is a support member (support means) shown in FIG. 3 is a member that suspends and supports the flexible plate member 12 to which the liquid crystal panel 106 is adsorbed and fixed. Moreover, the hanger unit 14 is fixed to the window glass 102, and the flexible plate member 12 is in a state where the liquid crystal panel 106 is directly opposed to the bonding position of the window glass 102 through a predetermined bonding gap. It is preferable that the jig can adjust the vertical position, inclination, and horizontal position of the jig. In the present embodiment, the hanger unit 14 will be described as a jig that adjusts the position in the horizontal direction and the position and inclination in the vertical direction.
 図3(A)の如く、ハンガーユニット14は、鉛直方向に設置された窓ガラス102の面に沿って、可撓性板状部材12の水平方向の位置を調整する水平方向位置調整部44、及び窓ガラス102の面に沿って、可撓性板状部材12の鉛直方向の位置を調整する鉛直方向位置調整部46を備える。また、ハンガーユニット14は、一対のハンド吸着盤48を備えている。これらのハンド吸着盤48を、窓ガラス102の面に吸着させることにより、ハンガーユニット14が窓ガラス102に吸着固定される。なお、ハンド吸着盤48に代えて、真空ポンプ(図示せず)に連結した吸着盤も使用可能であるが、現場貼合の場合にはハンドリング性の良いハンド吸着盤48が好ましい。ハンド吸着盤48としては、シンワ測定株式会社製の許容荷重が25kgf/1個のものを好適に使用することができる。また、ハンド吸着盤48の吸着位置は、窓ガラス102に限定されるものではなく、窓ガラスを支持する建築物の壁(支持体)に吸着固定してもよい。 As shown in FIG. 3A, the hanger unit 14 includes a horizontal position adjusting unit 44 that adjusts the horizontal position of the flexible plate-like member 12 along the surface of the window glass 102 installed in the vertical direction. And the vertical direction position adjustment part 46 which adjusts the position of the vertical direction of the flexible plate-shaped member 12 along the surface of the window glass 102 is provided. In addition, the hanger unit 14 includes a pair of hand suction boards 48. The hanger unit 14 is sucked and fixed to the window glass 102 by sucking these hand suction boards 48 on the surface of the window glass 102. In addition, it can replace with the hand suction board 48, but the suction disk connected with the vacuum pump (not shown) can also be used, but in the case of on-site bonding, the hand suction board 48 with good handling property is preferable. As the hand suction board 48, one having an allowable load of 25 kgf / 1 manufactured by Shinwa Measurement Co., Ltd. can be suitably used. Further, the suction position of the hand suction board 48 is not limited to the window glass 102 and may be suction fixed to a wall (support) of a building that supports the window glass.
 (水平方向位置調整部)
 水平方向位置調整部44は、レール状部材44Aに2台のリニアスライダ44B、44Bが、レール状部材44Aの長手方向に沿ってスライド自在に支持されることにより構成される。2台のリニアスライダ44B、44Bにそれぞれハンド吸着盤48が設けられる。
(Horizontal position adjustment unit)
The horizontal position adjusting unit 44 is configured by supporting two linear sliders 44B and 44B on a rail-like member 44A so as to be slidable along the longitudinal direction of the rail-like member 44A. A hand suction board 48 is provided on each of the two linear sliders 44B and 44B.
 (鉛直方向位置調整部)
 鉛直方向位置調整部46は、一対のターンバックル50、50によって構成される。一対のターンバックル50、50は、その上端がレール状部材44Aの両端部に取り付けられることにより、レール状部材44Aに吊設される。
(Vertical position adjustment unit)
The vertical position adjustment unit 46 includes a pair of turnbuckles 50 and 50. The pair of turnbuckles 50, 50 are suspended from the rail-shaped member 44A by attaching their upper ends to both ends of the rail-shaped member 44A.
 (支持部材の作用)
 支持部材としてのハンガーユニット14を使用する場合には、まず、レール状部材44Aの長手方向が水平方向を向くように2台のハンド吸着盤48を窓ガラス102の面に吸着固定させる。ハンド吸着盤48の吸着位置は、液晶パネル106の貼合位置に対応した大まかな位置である。そして、一対のターンバックル50、50の下端に設けたフック50Aに、可撓性板状部材12の上端に取り付けられたリング12Aを着脱自在に係合させる。これにより、液晶パネル106を吸着固定した可撓性板状部材12が、ハンガーユニット14に吊り下げ支持される。そして、レール状部材44Aを水平方向に移動させて位置調整するとともに、一対のターンバックル50、50を用いて鉛直方向の長さを個別に調整する。ターンバックル50、50の長さを同じだけ伸ばすと液晶パネル106の位置は、鉛直方向に下降し、同じだけ縮めると鉛直方向に上昇し、鉛直方向の位置を調整できる。ターンバックル50、50の一方を伸ばし、他方を縮めると傾きを調整することができる。これにより、窓ガラス102に対する液晶パネル106の貼合位置を所望の位置に容易に調整することができる。
(Operation of support member)
When using the hanger unit 14 as a support member, first, the two hand suction boards 48 are sucked and fixed to the surface of the window glass 102 so that the longitudinal direction of the rail-shaped member 44A is directed to the horizontal direction. The suction position of the hand suction board 48 is a rough position corresponding to the bonding position of the liquid crystal panel 106. And the ring 12A attached to the upper end of the flexible plate-like member 12 is detachably engaged with the hook 50A provided at the lower end of the pair of turnbuckles 50, 50. Thereby, the flexible plate-like member 12 to which the liquid crystal panel 106 is adsorbed and fixed is suspended and supported by the hanger unit 14. Then, the rail-shaped member 44 </ b> A is moved and adjusted in the horizontal direction, and the vertical length is individually adjusted using the pair of turnbuckles 50 and 50. When the lengths of the turnbuckles 50 and 50 are extended by the same amount, the position of the liquid crystal panel 106 is lowered in the vertical direction, and when the turnbuckles 50 and 50 are shortened by the same amount, the position is raised in the vertical direction. The inclination can be adjusted by extending one of the turnbuckles 50, 50 and contracting the other. Thereby, the bonding position of the liquid crystal panel 106 with respect to the window glass 102 can be easily adjusted to a desired position.
 なお、水平方向位置調整部44、及び鉛直方向位置調整部46の構成は、上記の例に限定されるものではなく、液晶パネル106の水平方向の位置及び鉛直方向の位置及び傾きを調整可能な機能を有するものであれば適用できる。 The configurations of the horizontal position adjusting unit 44 and the vertical position adjusting unit 46 are not limited to the above example, and the horizontal position and vertical position and inclination of the liquid crystal panel 106 can be adjusted. Any function can be applied.
 〈押圧部材〉
 押圧部材(押圧手段)であるローラ16は、液晶パネル106の幅と同等か、それ以上の軸長を有している。また、ローラ16は、可撓性板状部材12の背面から窓ガラス102に向けて可撓性板状部材12を押圧し、可撓性板状部材12に貼合荷重を付与する。更に、ローラ16は、液晶パネル106の上端である貼合開始端から、液晶パネル106の下端である貼合終了端へ下方に向けて移動される。この動作によって、窓ガラス102に液晶パネル106が貼合される。なお、前記貼合荷重は、後述する押圧部22からローラ16を介して可撓性板状部材12に付与されるものである。
<Pressing member>
The roller 16 as a pressing member (pressing means) has an axial length equal to or greater than the width of the liquid crystal panel 106. In addition, the roller 16 presses the flexible plate member 12 from the back surface of the flexible plate member 12 toward the window glass 102 and applies a bonding load to the flexible plate member 12. Further, the roller 16 is moved downward from a bonding start end that is the upper end of the liquid crystal panel 106 to a bonding end end that is the lower end of the liquid crystal panel 106. By this operation, the liquid crystal panel 106 is bonded to the window glass 102. In addition, the said bonding load is provided to the flexible plate-shaped member 12 through the roller 16 from the press part 22 mentioned later.
 図8は、ローラ16によって、液晶パネル106が窓ガラス102に貼合されている時の貼合荷重分布Pを示した説明である。図8の符号52は、粘着層である。なお、図8は、窓ガラス102に粘着層52を設けた場合であるが、液晶パネル106に粘着層52を設けた場合も同様である。また、図8では、図面の煩雑さを避けるため、可撓性板状部材12の図示を省略している。 FIG. 8 is an explanation showing a bonding load distribution P when the liquid crystal panel 106 is bonded to the window glass 102 by the roller 16. The code | symbol 52 of FIG. 8 is an adhesion layer. FIG. 8 shows the case where the adhesive layer 52 is provided on the window glass 102, but the same applies when the adhesive layer 52 is provided on the liquid crystal panel 106. Moreover, in FIG. 8, in order to avoid the complexity of drawing, illustration of the flexible plate-shaped member 12 is abbreviate | omitted.
 窓ガラス102と液晶パネル106との間の粘着層界面に気泡が入り込まないように貼合するためには、貼合荷重分布Pの幅Wを可能な限り狭くするとともに、分布中央部Qの貼合荷重が可能な限り大きくなるようにすることが好ましい。換言すると、ローラ16がヘルツ接触(線接触)した状態で貼合荷重を液晶パネル106に付与することが好ましい。 In order to bond so that air bubbles do not enter the adhesive layer interface between the window glass 102 and the liquid crystal panel 106, the width W of the bonding load distribution P is made as narrow as possible and the distribution center Q is bonded. It is preferable to make the combined load as large as possible. In other words, it is preferable to apply a bonding load to the liquid crystal panel 106 in a state where the roller 16 is in Hertz contact (line contact).
 このため、ローラ16は、ローラ表面が硬く且つローラ直径が細い方が、貼合荷重を線接触状態で付加させ易くなるので好ましいが、気泡が入り込まないようにするためには、窓ガラス102の反りに追従するように、ローラ16は、可撓性を有することが好ましい。この条件を満足するローラ16としては、例えば外径10~30mm(例えば20mm)、肉厚が0.3~3.0mm(例えば1mm)のステンレス製又はアルミニウム製の円筒管を好適に使用することができる。この場合、ローラ表面に薄膜状にゴム等の弾性部材を被服させてもよい。 For this reason, it is preferable that the roller 16 has a harder roller surface and a smaller roller diameter because it is easy to apply a bonding load in a line contact state. However, in order to prevent bubbles from entering, The roller 16 preferably has flexibility so as to follow the warp. As the roller 16 that satisfies this condition, for example, a cylindrical tube made of stainless steel or aluminum having an outer diameter of 10 to 30 mm (for example, 20 mm) and a wall thickness of 0.3 to 3.0 mm (for example, 1 mm) is preferably used. Can do. In this case, an elastic member such as rubber may be coated on the roller surface in a thin film shape.
 また、粘着層52の層厚が厚く、粘着層52の弾性率が大きく、かつ粘着層52が貼合荷重によって弾性変形し易い方が、窓ガラス102と液晶パネル106との間の粘着層界面に気泡が入り込み難い。このため、粘着層52の厚さは、0.1~2.0mm程度に設定され、好ましくは0.2~0.8mm程度に設定されている。粘着層52の厚さが0.1mm以上であれば、外力による衝撃等を粘着層が効果的に緩衝し、画像表示パネルを保護できる。また、窓ガラス102と液晶パネル106との間に粘着層52の厚さを超えない異物が混入しても、粘着層52の厚さが大きく変化することがなく、光透過性能への影響が少ない。粘着層52の厚さが2.0mm以下であれば、画像表示パネルの厚さが不要に厚くならない。 Also, the adhesive layer interface between the window glass 102 and the liquid crystal panel 106 is that the adhesive layer 52 is thicker, the elastic modulus of the adhesive layer 52 is larger, and the adhesive layer 52 is more easily elastically deformed by the bonding load. Air bubbles are difficult to enter. For this reason, the thickness of the adhesive layer 52 is set to about 0.1 to 2.0 mm, preferably about 0.2 to 0.8 mm. When the thickness of the adhesive layer 52 is 0.1 mm or more, the adhesive layer effectively buffers an impact caused by an external force, and the image display panel can be protected. In addition, even if foreign matter that does not exceed the thickness of the adhesive layer 52 is mixed between the window glass 102 and the liquid crystal panel 106, the thickness of the adhesive layer 52 does not change greatly, and the light transmission performance is affected. Few. When the thickness of the adhesive layer 52 is 2.0 mm or less, the thickness of the image display panel is not unnecessarily increased.
 また、粘着層52のせん断弾性率は、10~10Paの範囲にあることが好ましく、10~10Paの範囲にあることがより好ましい。 The shear modulus of the adhesive layer 52 is preferably in the range of 10 2 to 10 5 Pa, and more preferably in the range of 10 3 to 10 4 Pa.
 〈押圧部材を支持する部材〉
 図3に戻り説明すると、押圧部材を支持する部材であるローラ支持部18は、ローラ16及び貼合荷重調整機構部20等を有する押圧部22を、窓ガラス102に着脱自在に支持させる工程にて使用される部材である。
<Member supporting the pressing member>
Returning to FIG. 3, the roller support portion 18, which is a member that supports the pressing member, is a step of detachably supporting the pressing portion 22 including the roller 16 and the bonding load adjusting mechanism portion 20 on the window glass 102. It is a member used.
 ローラ支持部18は、レールフレーム54、及びレールフレーム54を窓ガラス102に吸着保持させる4個のハンド吸着盤48によって構成される。レールフレーム54は、可撓性板状部材12の幅よりも広い間隔で縦方向に平行に配置された一対のレール56、56と、レール56、56を連結する2本の連結材58、58から構成される。なお、ハンド吸着盤48の個数は、5個以上でもよい。 The roller support portion 18 includes a rail frame 54 and four hand suction boards 48 that hold the rail frame 54 to the window glass 102 by suction. The rail frame 54 includes a pair of rails 56 and 56 arranged in parallel in the vertical direction at intervals wider than the width of the flexible plate-like member 12, and two connecting members 58 and 58 that connect the rails 56 and 56. Consists of Note that the number of the hand suction boards 48 may be five or more.
 図9は、図3(A)のC-C’線からみた矢視図であり、ローラ16による貼合状況を示す説明図である。図10は、ローラ16による貼合状況を示した要部側面図である。 FIG. 9 is an arrow view seen from the line C-C ′ in FIG. 3 (A), and is an explanatory diagram showing a bonding state by the roller 16. FIG. 10 is a side view of an essential part showing a bonding state by the roller 16.
 (支持部の他の形態〉
 ローラ支持部は、窓ガラス102に気体を吹き付けることにより発生する負圧により非接触状態で窓ガラス102、又は窓ガラス102と連結された支持体(不図示)に取り付けられる部材でもよい。このような部材の一例を図4に示す。
(Other forms of support part)
The roller support part may be a member attached to the window glass 102 or a support body (not shown) connected to the window glass 102 in a non-contact state by a negative pressure generated by blowing gas onto the window glass 102. An example of such a member is shown in FIG.
 この例では、支持部18は、4個の非接触チャック55、各非接触チャック55に取り付けられた取り付け軸57及び2個の取り付け軸57を連結する連結部58から構成されている。非接触チャック55は、各支持部18に対して2個に取り付けられているが、その数は、限定されない。また、支持部18は、可撓性板状部材12の両側に配置されているが、片側だけに配置することができる。 In this example, the support portion 18 includes four non-contact chucks 55, an attachment shaft 57 attached to each non-contact chuck 55, and a connection portion 58 that connects the two attachment shafts 57. Two non-contact chucks 55 are attached to each support portion 18, but the number thereof is not limited. Moreover, although the support part 18 is arrange | positioned at the both sides of the flexible plate-shaped member 12, it can be arrange | positioned only at one side.
 非接触チャック55として、いわゆるベルヌーイチャックが使用される。ここで、ベルヌーイチャックとは、気体を基板(例えば、窓ガラス102)に吹き付けつけ、基板とチャックとの隙間を高速の気体を流すことで負圧を発生させて、基板とチャックとの間に気体を介して、基板とチャックとを非接触状態で保持するチャックをいう。ベルヌーイチャックには、気体を基板に吹き付ける際に、気体を旋回させて、旋回流を発生させてより大きな負圧を発生させて、基板とチャックとを非接触状態で保持するチャック(サイクロン方式)も含まれる。非接触チャック55としては、例えば、SMC株式会社製の許容荷重4kgf/1個のXT661-10A-Rを好適に使用することができる。 As the non-contact chuck 55, a so-called Bernoulli chuck is used. Here, the Bernoulli chuck is a method in which a gas is blown onto a substrate (for example, the window glass 102) to generate a negative pressure by flowing a high-speed gas through a gap between the substrate and the chuck. A chuck that holds the substrate and the chuck in a non-contact state via a gas. In Bernoulli chuck, when gas is blown onto the substrate, the gas is swirled to generate a swirling flow and a larger negative pressure is generated to hold the substrate and the chuck in a non-contact state (cyclone method) Is also included. As the non-contact chuck 55, for example, XT661-10A-R having an allowable load of 4 kgf / piece manufactured by SMC Corporation can be suitably used.
 〈押圧部〉
 図9、図10に示すように、押圧部22は、ローラ16の軸方向に平行に配置された角材のローラ操作バー60、ローラ操作バー60の両端部に設けられ、対向する一対のレール56、56にスライド自在に係合する係合部62、及びローラ操作バー60の軸方向に沿って設けられ、ローラ16の貼合荷重調整工程にて使用される貼合荷重調整機構部20によって構成される。
<Pressing part>
As shown in FIG. 9 and FIG. 10, the pressing portion 22 is a square bar operation bar 60 disposed in parallel to the axial direction of the roller 16, and a pair of opposed rails 56 provided at both ends of the roller operation bar 60. , 56 slidably engaged with the engaging portion 62, and the axial direction of the roller operation bar 60. Is done.
 図9および図10の係合部62は、車輪軸が直交方向に配置された車輪64と車輪ユニット66とからなる。 9 and 10 includes a wheel 64 and a wheel unit 66 in which wheel axes are arranged in an orthogonal direction.
 図9に示す車輪64は、ローラ操作バー60の端部から側方に延設されたL字形状のブラケット68に軸64Aを介して回転自在に支持され、レール56の内壁面56Aに転接される。また、車輪ユニット66は、図9の如く一対の車輪66Aを備えている。これらの車輪66Aは、ブラケット68に軸66Bを介して回転自在に支持され、レール56のローラガイド面56Bに転接される。レール56の内壁面56Aとローラガイド面56Bとは、互いに直交する面であり、内壁面56Aに車輪64が転接され、かつローラガイド面56Bに一対の車輪66Aが転接されることにより、押圧部22がローラ支持部18に対して鉛直方向に沿って移動自在に支持される。 The wheel 64 shown in FIG. 9 is rotatably supported by an L-shaped bracket 68 extending laterally from the end of the roller operation bar 60 via a shaft 64A, and is in rolling contact with the inner wall surface 56A of the rail 56. Is done. The wheel unit 66 includes a pair of wheels 66A as shown in FIG. These wheels 66A are rotatably supported by the bracket 68 via a shaft 66B, and are in rolling contact with the roller guide surface 56B of the rail 56. The inner wall surface 56A of the rail 56 and the roller guide surface 56B are surfaces orthogonal to each other, and the wheels 64 are in rolling contact with the inner wall surface 56A, and the pair of wheels 66A are in contact with the roller guide surface 56B. The pressing portion 22 is supported movably along the vertical direction with respect to the roller support portion 18.
 車輪ユニット66には、さらにディスクダンパー(図示しない)を備えることが好ましい。これにより、車輪66Aの回転速度を制御でき、貼合中にローラ操作バー60を離しても押圧部22が高速で下降することを防止できる。その結果、貼合面に泡が入ることを防止できる。ディスクダンパーには、例えば、不二ラテックス株式会社製FDN-47A-R(L)163を用いることができる。 It is preferable that the wheel unit 66 further includes a disk damper (not shown). Thereby, the rotational speed of the wheel 66A can be controlled, and the pressing portion 22 can be prevented from descending at high speed even when the roller operation bar 60 is released during bonding. As a result, bubbles can be prevented from entering the bonding surface. As the disk damper, for example, FDN-47A-R (L) 163 manufactured by Fuji Latex Co., Ltd. can be used.
 また、図10に示すように、ローラガイド面56Bの上端(図10の右端)には、傾斜したテーパ形状のスロープ70が備えられる。また、ローラガイド面56Bには、スロープ70に連続して窓ガラス102に平行な水平面72が備えられる。スロープ70を利用して係合部62の車輪66Aを、図10の実線の如く水平面72に転接させることにより、ローラ16を貼合開始位置に円滑に位置させることができる。 Further, as shown in FIG. 10, an inclined tapered slope 70 is provided at the upper end (right end in FIG. 10) of the roller guide surface 56B. The roller guide surface 56 </ b> B is provided with a horizontal plane 72 that is continuous with the slope 70 and parallel to the window glass 102. The roller 16 can be smoothly positioned at the bonding start position by rolling the wheel 66A of the engaging portion 62 to the horizontal plane 72 as shown by the solid line in FIG. 10 using the slope 70.
 〈貼合荷重調整機構部〉
 図9に示すように、貼合荷重調整機構部20は、ローラ16の軸方向の中央位置、両端位置、及び中央位置と両端位置との中間位置の5か所に設けられる。貼合荷重調整機構部20は、ローラ16に貼合荷重を付与するとともに外力に応じて伸縮可能に構成される。
<Bonding load adjustment mechanism>
As shown in FIG. 9, the bonding load adjusting mechanism portion 20 is provided at five positions of the center position in the axial direction of the roller 16, both end positions, and an intermediate position between the center position and both end positions. The pasting load adjusting mechanism 20 is configured to apply a pasting load to the roller 16 and to expand and contract according to an external force.
 貼合荷重調整機構部20は、図10に示すように、一対のスライダ74、ブラケット76、スプリング78、及び一対のバックアップローラ80から構成される。貼合荷重調整機構部20は、回転支持ピン等によって首振りが可能になっていることが好ましい。ローラ16が窓ガラス102の反りに追従して変形する際に、一対のバックアップローラ80をローラ16に密着させることができ、精度良く窓ガラス102の反りに追従することができる。 As shown in FIG. 10, the bonding load adjusting mechanism unit 20 includes a pair of sliders 74, a bracket 76, a spring 78, and a pair of backup rollers 80. It is preferable that the bonding load adjusting mechanism unit 20 can be swung by a rotation support pin or the like. When the roller 16 deforms following the warp of the window glass 102, the pair of backup rollers 80 can be brought into close contact with the roller 16, and the warp of the window glass 102 can be accurately followed.
 スライダ74は、ローラ操作バー60の窓ガラス102に対向する面から窓ガラス102の面に対して直交方向に突没自在に設けられ、この2本のスライダ74の先端にブラケット76が固定される。スプリング78は、ローラ操作バー60とブラケット76との間に介在され、スプリング78の付勢力によってブラケット76が窓ガラス102に向けて付勢されている。 The slider 74 is provided so as to be able to project and retract in a direction perpendicular to the surface of the window glass 102 from the surface facing the window glass 102 of the roller operation bar 60, and the bracket 76 is fixed to the tips of the two sliders 74. . The spring 78 is interposed between the roller operation bar 60 and the bracket 76, and the bracket 76 is biased toward the window glass 102 by the biasing force of the spring 78.
 一対のバックアップローラ80は、軸80Aを介してブラケット76に回動自在に支持され、同方向に回転されるローラ16に転接されてローラ16の回転を支持する。 The pair of backup rollers 80 is rotatably supported by the bracket 76 via the shaft 80A, and is in rolling contact with the roller 16 rotated in the same direction to support the rotation of the roller 16.
 ローラ16は、図9の如く、ブラケット68から突設されたピン82が内部に挿入されることにより、ローラ操作バー60からの脱落が防止されている。一対のバックアップローラ80は、クラウン形状であることが好ましい。クラウン形状のバックアップローラ80を使用すれば、ローラ16が窓ガラス102の反りにさらに精度良く追従できる。両端に位置する一対のバックアップローラ80の端は、液晶パネル106の端よりはみ出ていることが好ましい。これにより、液晶パネル106の端にまで十分な貼合圧力を加えることができる。 As shown in FIG. 9, the roller 16 is prevented from falling off the roller operation bar 60 by inserting a pin 82 projecting from the bracket 68 into the roller 16. The pair of backup rollers 80 are preferably crown-shaped. If the crown-shaped backup roller 80 is used, the roller 16 can follow the warp of the window glass 102 with higher accuracy. The ends of the pair of backup rollers 80 positioned at both ends preferably protrude beyond the ends of the liquid crystal panel 106. Thereby, sufficient bonding pressure can be applied to the end of the liquid crystal panel 106.
 貼合荷重調整機構部20によれば、図10の2点鎖線で示すように、押圧部22がローラ操作バー60のスロープ70の部分に位置する時には、スプリング78が伸長した状態でローラ16が可撓性板状部材12に当接される。この後、図10の実線で示すように、押圧部22がスロープ70から水平面72に移動すると、ローラ16が可撓性板状部材12を押圧し、その反力によってスプリング78が収縮し、スプリング78に付勢力が発生する。この付勢力がローラ16に付与される貼合荷重となる。 According to the bonding load adjusting mechanism 20, as shown by a two-dot chain line in FIG. 10, when the pressing portion 22 is positioned at the slope 70 portion of the roller operation bar 60, the roller 16 is in a state where the spring 78 is extended. It abuts on the flexible plate member 12. Thereafter, as shown by the solid line in FIG. 10, when the pressing portion 22 moves from the slope 70 to the horizontal plane 72, the roller 16 presses the flexible plate member 12, and the spring 78 contracts due to the reaction force. A biasing force is generated at 78. This urging force is a bonding load applied to the roller 16.
 〈湾曲させる部材〉
 本実施形態には、可撓性板状部材12をその上端部から下端部にかけて、窓ガラス102から退避する方向に円弧状に湾曲させる部材を有する。この部材により、可撓性板状部材12に吸着保持された液晶パネル106を、窓ガラス102に対して凸状に湾曲させることができる。
<Curved member>
In the present embodiment, the flexible plate-like member 12 has a member that curves in an arc shape in a direction of retreating from the window glass 102 from the upper end portion to the lower end portion. With this member, the liquid crystal panel 106 adsorbed and held on the flexible plate-like member 12 can be curved in a convex shape with respect to the window glass 102.
 (湾曲させる部材の形態)
 図11(A)、(B)に示した貼合状況を示す説明図の如く、2形態の湾曲させる部材24が示されている。
(Form of member to be curved)
As shown in FIG. 11A and FIG. 11B, two forms of the bending member 24 are shown.
 湾曲させる部材24は、可撓性板状部材12の下端部であって可撓性板状部材12の幅方向の少なくとも2か所に着脱自在に設けられる。なお、図3(A)では、4か所に湾曲させる部材24が備えられている。 The member 24 to be curved is detachably provided at at least two places in the width direction of the flexible plate member 12 at the lower end of the flexible plate member 12. In FIG. 3A, there are provided members 24 that bend at four locations.
 図11(A)の湾曲させる部材24は、可撓性板状部材12の下端部を、スプリング24Dの付勢力によって窓ガラス102から退避する方向に押し上げる押上方式である。この湾曲させる部材24は、可撓性板状部材12の下端部にプレート24Aが着脱自在に固定され、このプレート24Aの開口部(不図示)に棒状のプッシャ24Bが挿抜自在に取り付けられている。プッシャ24Bの先端部には、窓ガラス102に当接される弾性体24Cが取り付けられ、スプリング24Dは、プレート24Aと弾性体24Cとの間に介在され、スプリング24Dにプッシャ24Bが挿通されている。 11A is a push-up method in which the lower end portion of the flexible plate-like member 12 is pushed up in the direction of retracting from the window glass 102 by the urging force of the spring 24D. In the member 24 to be bent, a plate 24A is detachably fixed to a lower end portion of the flexible plate member 12, and a rod-like pusher 24B is detachably attached to an opening (not shown) of the plate 24A. . An elastic body 24C that is in contact with the window glass 102 is attached to the tip of the pusher 24B. The spring 24D is interposed between the plate 24A and the elastic body 24C, and the pusher 24B is inserted into the spring 24D. .
 図11(B)の湾曲させる部材24は、可撓性板状部材12の下端部を窓ガラス102から退避する方向に、ウエイト部材24Eの自重によって牽引する牽引方式である。この湾曲させる部材24は、プレート24Aに牽引ロープ24Fを介してウエイト部材24Eを吊り下げて構成される。また、ウエイト部材24Eの自重をプレート24Aに水平方向に付与するために、牽引ロープ24Fは、プーリ24Gに巻き掛けられている。 11B is a pulling system in which the lower end portion of the flexible plate-like member 12 is pulled by the weight of the weight member 24E in the direction of retracting from the window glass 102. The member 24 to be bent is configured by suspending a weight member 24E from a plate 24A via a pulling rope 24F. Further, in order to apply the weight of the weight member 24E to the plate 24A in the horizontal direction, the tow rope 24F is wound around the pulley 24G.
 これらの湾曲させる部材24によれば、液晶パネル106とともに可撓性板状部材12をその上端部から下端部にかけて、窓ガラス102から退避する方向に円弧状に湾曲させることができる。すなわち、窓ガラス102に向かって凸状に湾曲させることができる。また、ローラ16によって可撓性板状部材12を窓ガラス102側に押圧した場合であっても、スプリング24Dの付勢力によって、ローラ16による貼合中の位置よりも下流側の可撓性板状部材12を貼合進行方向に沿って上向きに湾曲させることができる。したがって、貼合中の位置より下流側の液晶パネル106が窓ガラス102に先貼りされるのを防止できる。 According to these curving members 24, the flexible plate-like member 12 can be curved in an arc shape in the direction of retreating from the window glass 102 from the upper end portion to the lower end portion together with the liquid crystal panel 106. That is, it can be curved in a convex shape toward the window glass 102. Even when the flexible plate-like member 12 is pressed toward the window glass 102 by the roller 16, the flexible plate on the downstream side of the position during bonding by the roller 16 by the urging force of the spring 24 </ b> D. The shaped member 12 can be curved upward along the bonding progress direction. Therefore, it is possible to prevent the liquid crystal panel 106 on the downstream side from being pasted from being pasted on the window glass 102.
 可撓性板状部材12に対するプレート24Aの固定形態は、特に限定されないが、例えばクランプ方式やハンド吸着盤方式等を採用することにより可撓性板状部材12に対して着脱自在に取り付けることができる。 The fixing form of the plate 24A with respect to the flexible plate-like member 12 is not particularly limited. For example, the plate 24A can be detachably attached to the flexible plate-like member 12 by adopting a clamp method, a hand suction plate method, or the like. it can.
 (粘着層)
 図8に示した粘着層52は、窓ガラス102と液晶パネル106とのいずれに設けられていてもよい。貼合位置の調整のし易さから、液晶パネル106に粘着層52を設ける方が好ましい。粘着層52は、上述した粘着層が使用される。
(Adhesive layer)
The adhesive layer 52 shown in FIG. 8 may be provided on either the window glass 102 or the liquid crystal panel 106. From the viewpoint of easy adjustment of the bonding position, it is preferable to provide the adhesive layer 52 on the liquid crystal panel 106. As the adhesive layer 52, the above-mentioned adhesive layer is used.
 上記した可撓性板状部材12、ハンガーユニット14、ローラ16、ローラ支持部18、貼合荷重調整機構部20を備えた押圧部22、及び湾曲させる部材24は、それぞれ独立したユニットとして構成され、それぞれのユニットは、最大重量が15kg以下に構成されている。これにより、作業者が各ユニットを容易に取り扱うことができる。したがって、現場貼合する場合には、各ユニットを現場に運び込み、作業者は、現場で貼合装置10を容易に組み立てることができる。 The flexible plate-like member 12, the hanger unit 14, the roller 16, the roller support portion 18, the pressing portion 22 having the bonding load adjusting mechanism portion 20, and the bending member 24 are configured as independent units. Each unit has a maximum weight of 15 kg or less. Thereby, an operator can handle each unit easily. Therefore, when carrying out site bonding, each unit is carried to the site and the operator can assemble the bonding apparatus 10 easily on site.
 〈補強部材〉
 本実施形態の貼合装置は、窓ガラス102の非貼合面に備える補強部材を有してもよい。補強部材は、窓ガラス102の非貼合面に着脱自在に取り付けられる。補強部材を有すると、押圧する際に、窓ガラス102の変形を抑制できる。
<Reinforcing member>
The bonding apparatus of this embodiment may have a reinforcing member provided on the non-bonding surface of the window glass 102. The reinforcing member is detachably attached to the non-bonding surface of the window glass 102. When the reinforcing member is provided, deformation of the window glass 102 can be suppressed when pressing.
 補強部材の例を図12、図13および図14に示す。
 図12に示した補強部材15は、吸着構造を有する定盤15A(吸着定盤)で構成される。
 図13(A)に示した補強部材15は、窓ガラス102に付与される貼合荷重に対抗する剛性を有するフレーム15Bと、フレーム15Bに複数設けられ、窓ガラス102の非貼合面に着脱自在に吸着する吸着部15Cと、で構成される。また、図13(B)、(C)に示した補強部材15は、窓ガラス102に付与される貼合荷重に対抗する剛性を有するフレーム15Dと、フレーム15Dに複数設けられ、窓ガラス102の非貼合面に着脱自在に吸着する吸着部15Cと、で構成される。
 図14に示した補強部材15は、定盤15Aと、定盤15Aを保持する保持フレーム15Dと、保持フレーム15Dを窓ガラス102の非貼合面に着脱自在に取り付ける吸着部15Cと、保持フレーム15Dに保持された定盤15Aを窓ガラス102の非貼合面に当接させる当接部材15Eと、で構成される。
Examples of the reinforcing member are shown in FIGS.
The reinforcing member 15 shown in FIG. 12 includes a surface plate 15A (adsorption surface plate) having an adsorption structure.
The reinforcing member 15 shown in FIG. 13A is provided with a plurality of frames 15B having rigidity against the bonding load applied to the window glass 102 and a plurality of frames 15B, and is attached to and detached from the non-bonding surface of the window glass 102. And an adsorbing portion 15C that adsorbs freely. 13 (B) and 13 (C) are provided with a plurality of frames 15D having a rigidity against the bonding load applied to the window glass 102 and a plurality of frames 15D. And an adsorbing portion 15C that adsorbs detachably to the non-bonding surface.
14 includes a surface plate 15A, a holding frame 15D that holds the surface plate 15A, a suction portion 15C that removably attaches the holding frame 15D to the non-bonding surface of the window glass 102, and a holding frame. And a contact member 15E that makes the surface plate 15A held by 15D contact the non-bonding surface of the window glass 102.
 吸着定盤15Aとは、定盤に吸着構造を有するものを言う。吸着には、真空吸着、静電気による吸着、粘着による吸着等を用いることができる。中でも、大きな吸着力を得る観点から、真空吸着が好ましい。真空吸着式の吸着定盤15Aとしては、例えば、定盤内部に形成した空間部に連通させて定盤吸着面に複数の吸引孔又は吸引溝を形成し、空間部を真空源に繋ぐことで構成することができる。吸着定盤の材料としては、軽量化を図りやすいセラミックス、FRP等の強化プラスチックが好ましく、金属製の場合には、アルミ合金等の軽量金属が好ましい。 The adsorption surface plate 15A refers to a surface plate having an adsorption structure. For the adsorption, vacuum adsorption, electrostatic adsorption, adhesion adsorption, and the like can be used. Among these, vacuum adsorption is preferable from the viewpoint of obtaining a large adsorption force. As the vacuum suction type suction surface plate 15A, for example, a plurality of suction holes or suction grooves are formed in the surface plate suction surface by communicating with a space portion formed inside the surface plate, and the space portion is connected to a vacuum source. Can be configured. As the material for the adsorption surface plate, reinforced plastics such as ceramics and FRP that can be easily reduced in weight are preferable, and in the case of a metal, a lightweight metal such as an aluminum alloy is preferable.
 フレーム15B等の各フレームを構成する材料は、アルミ合金等の金属、セラミックス、FRP等の強化プラスチックを使用できる。特に、現場貼合では補強部材15の持ち運び易さ、および窓ガラス102への取り付け易さの観点から、フレーム15Bの材料は、軽量化を図りやすいアルミ合金、FRP等の強化プラスチックが特に好ましい。
 フレーム15Bおよび保持フレーム15D等の形状について、図13(A)~(C)にその態様例を示したが、これらに限定されることなく各種の態様が採用可能である。
The material constituting each frame such as the frame 15B can be a metal such as an aluminum alloy, ceramics, or a reinforced plastic such as FRP. In particular, from the viewpoint of ease of carrying the reinforcing member 15 and ease of attachment to the window glass 102 in on-site bonding, the material of the frame 15B is particularly preferably a reinforced plastic such as an aluminum alloy or FRP that can be easily reduced in weight.
Examples of the shapes of the frame 15B, the holding frame 15D, and the like are shown in FIGS. 13A to 13C, but various embodiments can be adopted without being limited thereto.
 フレーム15Bは、吸着部15Cにより、建築物に鉛直方向に設置された窓ガラス102の非貼合面に確実に固定される。吸着部15Cとしては、例えば、ハンガーユニット14で説明したハンド吸着盤(シンワ測定株式会社製の許容荷重が25kgf/1個)を使用できる。
 なお、図13においては、補強部材15が配置される領域の幅Lは、液晶パネルの106の幅Wより広くなるようにされている。
The frame 15B is reliably fixed to the non-bonding surface of the window glass 102 installed in the building in the vertical direction by the suction portion 15C. As the suction part 15C, for example, the hand suction board described in the hanger unit 14 (the allowable load manufactured by Shinwa Measurement Co., Ltd. is 25 kgf / 1 piece) can be used.
In FIG. 13, the width L of the region where the reinforcing member 15 is disposed is wider than the width W of the liquid crystal panel 106.
 図14において、保持フレーム15Dは、上部と下部とに定盤15Aを保持する爪部15Fを有する保持アーム15Gと保持アーム15Gを連結する連結アーム15Hを有して構成される。保持フレーム15Dは、定盤15Aを窓ガラス102に当接可能に保持できれば、どのような構造でもよいが、軽量化の観点からは複数の開口部を有するフレーム構造であることが好ましい。また、保持フレーム15Dの材料は、軽量化を図りやすいセラミックス、FRP等の強化プラスチックが特に好ましく、金属製の場合にはアルミニウム等の軽量金属が好ましい。 In FIG. 14, the holding frame 15D includes a holding arm 15G having a claw portion 15F for holding the surface plate 15A at the upper part and the lower part, and a connecting arm 15H for connecting the holding arm 15G. The holding frame 15D may have any structure as long as the surface plate 15A can be held in contact with the window glass 102. From the viewpoint of weight reduction, the holding frame 15D is preferably a frame structure having a plurality of openings. In addition, the material of the holding frame 15D is particularly preferably a reinforced plastic such as ceramics or FRP which can be easily reduced in weight, and in the case of a metal, a lightweight metal such as aluminum is preferable.
 当接部材15Eは、保持アーム15Dに貫通し、定盤15Aの裏面を押圧するように構成される。例えば、図14に示すように、当接部材15Eは、雌ねじと、雌ねじに螺合する雄ねじとで構成され、雄ねじの先端が雌ねじから突出して、定盤15Aの裏面を押圧するように構成される。当接部材15Eは、トルクレンチ(図示せず)を用いて、それぞれ等しいトルク値になるまで回動させて当接する。これにより、定盤15Aの全面が窓ガラス102の非貼合面に均一な力で当接される。この際のトルクレンチのトルク値については、予備試験等によって求めた値である。 The contact member 15E is configured to penetrate the holding arm 15D and press the back surface of the surface plate 15A. For example, as shown in FIG. 14, the contact member 15E is configured by a female screw and a male screw that is screwed to the female screw, and the tip of the male screw protrudes from the female screw to press the back surface of the surface plate 15A. The The contact member 15E is rotated and contacted using torque wrench (not shown) until the torque values become equal to each other. Thus, the entire surface of the surface plate 15A is brought into contact with the non-bonding surface of the window glass 102 with a uniform force. The torque value of the torque wrench at this time is a value obtained by a preliminary test or the like.
 〔積層体の製造方法〕
 本実施の形態では、窓ガラス102(第1の基板)が建築物に設置されている現場で貼合装置10を組み立てて、組み立てた貼合装置10を用いて窓ガラス102に液晶パネル106(第2の基板)を貼合する積層体の製造方法(画像表示装置の製造方法)を説明する。
 本積層体の製造方法は、前述したように、液晶パネル106(第2の基板)を弾性変形可能な可撓性板状部材12に着脱自在に保持させる保持工程と、
 窓ガラス102(第1の基板)にハンガーユニット14(支持部材)を着脱自在に装着するとともに、ハンガーユニット14に可撓性板状部材12を着脱自在に取り付ける支持工程と、
 湾曲させる部材24により、可撓性板状部材12を湾曲させることにより、貼合方向に向かって液晶パネル106を窓ガラス102に対して凸状に湾曲させる湾曲工程と、
 ローラ16(押圧部材)により、可撓性板状部材12を押圧して貼合荷重を移動させることにより、可撓性板状部材12を湾曲に抗して貼合方向に向かって矯正させ、貼合方向と直交する方向で窓ガラス102の形状に倣うように変形させながら液晶パネル106を窓ガラス102に順次貼合する貼合工程と、を含む。
 上記した各工程は、上記した順に行うのが好ましい。
[Method for producing laminate]
In this Embodiment, the bonding apparatus 10 is assembled in the field where the window glass 102 (1st board | substrate) is installed in the building, and the liquid crystal panel 106 (on the window glass 102 is used using the assembled bonding apparatus 10. The manufacturing method of the laminated body (the manufacturing method of an image display apparatus) which bonds (2nd board | substrate) is demonstrated.
As described above, the manufacturing method of the present laminate includes a holding step of detachably holding the liquid crystal panel 106 (second substrate) on the flexible plate member 12 that is elastically deformable,
A support step of detachably attaching the hanger unit 14 (support member) to the window glass 102 (first substrate) and detachably attaching the flexible plate member 12 to the hanger unit 14;
A bending step of bending the liquid crystal panel 106 in a convex shape with respect to the window glass 102 toward the bonding direction by bending the flexible plate-like member 12 with the member 24 to be bent;
By pressing the flexible plate-like member 12 with the roller 16 (pressing member) and moving the bonding load, the flexible plate-like member 12 is corrected against the curve in the bonding direction, A bonding step of sequentially bonding the liquid crystal panel 106 to the window glass 102 while being deformed so as to follow the shape of the window glass 102 in a direction orthogonal to the bonding direction.
The above steps are preferably performed in the order described above.
 なお、粘着層52は、液晶パネル106の一面に設けられているものとし、液晶パネル106は、粘着層52の面に剥離シート(図示せず)が貼り付けられた形態で貼合現場に搬入されるものとする。 The adhesive layer 52 is provided on one surface of the liquid crystal panel 106, and the liquid crystal panel 106 is brought into the bonding site in a form in which a release sheet (not shown) is attached to the surface of the adhesive layer 52. Shall be.
 〈貼合装置の組立手順〉
 図15~図20にしたがって貼合装置10の組立手順を説明する。
<Assembly procedure for bonding equipment>
The assembly procedure of the bonding apparatus 10 will be described with reference to FIGS.
 図15(A)の正面図、(B)の側面図に示すように、作業者は、鉛直に設置されている窓ガラス102に、ハンガーユニット14のハンド吸着盤48をレール状部材44Aがほぼ水平になるように吸着固定させる。 As shown in the front view of FIG. 15A and the side view of FIG. 15B, the operator places the rail-shaped member 44 </ b> A on the hand suction disk 48 of the hanger unit 14 on the vertically installed window glass 102. Adsorb and fix so that it is horizontal.
 (第2の基板を固定する工程)
 図16に示すように、現場貼合する建築物の床面等において平置き状態で可撓性板状部材12に液晶パネル106を吸着固定する。本実施の形態においては、液晶パネル106の一面に粘着層52が設けられているので、液晶パネル106の粘着層52が設けられていない面を可撓性板状部材12に吸着固定する。その後、可撓性板状部材12に湾曲させる部材24を取り付け、液晶パネル106から前記剥離シートを剥離する。
(Step of fixing the second substrate)
As shown in FIG. 16, the liquid crystal panel 106 is adsorbed and fixed to the flexible plate-like member 12 in a flat state on the floor surface of the building to be bonded at the site. In the present embodiment, since the adhesive layer 52 is provided on one surface of the liquid crystal panel 106, the surface of the liquid crystal panel 106 on which the adhesive layer 52 is not provided is adsorbed and fixed to the flexible plate member 12. Thereafter, a member 24 to be bent is attached to the flexible plate member 12, and the release sheet is peeled from the liquid crystal panel 106.
 図16(A)は、液晶パネル106が吸着固定された可撓性板状部材12の正面図であり、図16(B)は、図16(A)の側面図である。図16(A)に示すように、可撓性板状部材12には、スポンジ部材84とダミーシート86を設けてもよい。 FIG. 16 (A) is a front view of the flexible plate-like member 12 to which the liquid crystal panel 106 is fixed by suction, and FIG. 16 (B) is a side view of FIG. 16 (A). As shown in FIG. 16A, the flexible plate-like member 12 may be provided with a sponge member 84 and a dummy sheet 86.
 図16(B)及び図17(A)に示すように、厚さが液晶パネル106の厚さよりも厚い帯状のスポンジ部材84を設けると、後述する貼合工程において、可撓性板状部材12を押圧する前に粘着層52と窓ガラス102との接触を防止できる。また、図17(B)に示すように、スポンジ部材84は、貼合時にはローラ16による貼合荷重によって液晶パネル106の厚さまで圧縮されるので、液晶パネル106は窓ガラス102に問題なく貼合される。 As shown in FIGS. 16B and 17A, when a strip-like sponge member 84 having a thickness larger than the thickness of the liquid crystal panel 106 is provided, the flexible plate-like member 12 is used in the bonding step described later. Before pressing, the contact between the adhesive layer 52 and the window glass 102 can be prevented. In addition, as shown in FIG. 17B, the sponge member 84 is compressed to the thickness of the liquid crystal panel 106 by the bonding load by the roller 16 at the time of bonding, so the liquid crystal panel 106 is bonded to the window glass 102 without any problem. Is done.
 スポンジ部材84は、液晶パネル106を囲むように設けてもよく、粘着層52が窓ガラス102に接触するおそれのある液晶パネル106の上縁に沿って設けてもよい。 The sponge member 84 may be provided so as to surround the liquid crystal panel 106, and may be provided along the upper edge of the liquid crystal panel 106 in which the adhesive layer 52 may come into contact with the window glass 102.
 図16(B)及び図17に示すように、液晶パネル106と同じ厚さのダミーシート86を設けると、貼合開始位置および貼合終了位置の前後において、可撓性板状部材12の剛性の差を解消できるので、貼合開始時の貼合を円滑に実施することができる。図10に示したように、レール56のスロープ70を利用してローラ16を、実線で示す貼合開始位置に装着する場合、貼合開始位置よりも上流側の可撓性板状部材12にも、ローラ16からの貼合荷重が付加される。ダミーシート86を介在させると、貼合開始位置の前後において、可撓性板状部材12の剛性の差を解消できて、気泡の発生を低減できるため好ましい。 As shown in FIG. 16B and FIG. 17, when a dummy sheet 86 having the same thickness as the liquid crystal panel 106 is provided, the rigidity of the flexible plate-like member 12 before and after the bonding start position and the bonding end position. Since the difference of can be eliminated, the bonding at the start of the bonding can be carried out smoothly. As shown in FIG. 10, when the roller 16 is mounted at the bonding start position indicated by the solid line using the slope 70 of the rail 56, the flexible plate-like member 12 on the upstream side of the bonding start position is attached to the flexible plate-like member 12. Also, a bonding load from the roller 16 is added. It is preferable to interpose the dummy sheet 86 because the difference in rigidity of the flexible plate-like member 12 can be eliminated before and after the bonding start position, and the generation of bubbles can be reduced.
 図16(B)では、ダミーシート86を貼合開始位置よりも上流側と貼合終了位置の下流側に設けているが、上流側または下流側のいずれか一方だけ設けてもよい。 In FIG. 16B, the dummy sheet 86 is provided on the upstream side and the downstream side of the pasting end position from the pasting start position, but only one of the upstream side or the downstream side may be provided.
 本工程において、粘着層52から剥離シートを剥離すると、スポンジ部材84を設けても、液晶パネル106を吸着保持した可撓性板状部材12を、窓ガラス102に対して位置調整する際に、粘着層52が窓ガラス102に接触するおそれがある。この接触を防止する方法としては、粘着層52が窓ガラス102から離れる位置に可撓性板状部材12を吊り下げることが挙げられる。この場合、貼合時には、ターンバックル50の下端が窓ガラス102へ近づくように移動させた後に貼合工程を行う。 In this step, when the release sheet is peeled from the adhesive layer 52, even when the sponge member 84 is provided, the position of the flexible plate-like member 12 holding the liquid crystal panel 106 by suction is adjusted with respect to the window glass 102. There is a possibility that the adhesive layer 52 may come into contact with the window glass 102. As a method for preventing this contact, the flexible plate-like member 12 is suspended at a position where the adhesive layer 52 is separated from the window glass 102. In this case, at the time of bonding, the bonding step is performed after the lower end of the turnbuckle 50 is moved so as to approach the window glass 102.
 (可撓性板状部材を支持する工程)
 次に、図18(A)、(B)に示すように、ハンガーユニット14の一対のターンバックル50のフック50Aに、液晶パネル106を吸着保持した可撓性板状部材12のリング12Aを着脱自在に係合させ、液晶パネル106とともに可撓性板状部材12を、ハンガーユニット14を介して窓ガラス102に吊り下げ支持する。
(Step of supporting the flexible plate-like member)
Next, as shown in FIGS. 18A and 18B, the ring 12A of the flexible plate-like member 12 holding the liquid crystal panel 106 is attached to and detached from the hook 50A of the pair of turnbuckles 50 of the hanger unit 14. The flexible plate member 12 is suspended and supported on the window glass 102 via the hanger unit 14 together with the liquid crystal panel 106.
 この後、ハンガーユニット14によって、可撓性板状部材12を水平方向及び鉛直方向に移動させることによって、窓ガラス102の貼合位置に液晶パネル106の位置を調整する。 Thereafter, the position of the liquid crystal panel 106 is adjusted to the bonding position of the window glass 102 by moving the flexible plate member 12 in the horizontal direction and the vertical direction by the hanger unit 14.
 (湾曲工程)
 可撓性板状部材12を湾曲させて、液晶パネル106を窓ガラス102に対して凸状に湾曲させる。液晶パネル106が固定されている可撓性板状部材を、湾曲させる部材24によって湾曲することで、液晶パネル106を湾曲する。前記支持する工程では、可撓性板状部材12が湾曲された状態で液晶パネル106の貼合位置が調整されることが好ましい。
(Curving process)
The flexible plate-like member 12 is bent, and the liquid crystal panel 106 is bent convexly with respect to the window glass 102. The flexible plate-like member to which the liquid crystal panel 106 is fixed is bent by the bending member 24, so that the liquid crystal panel 106 is bent. In the supporting step, it is preferable that the bonding position of the liquid crystal panel 106 is adjusted in a state where the flexible plate-like member 12 is curved.
 (可撓性ローラ支持工程)
 次に、図19(A)、(B)に示すように、吊り下げ支持した可撓性板状部材12を囲むようにローラ支持部18を窓ガラス102に固定する。具体的には、ローラ支持部18のレールフレーム54に設けられた4個のハンド吸着盤48を窓ガラス102に吸着固定し、ローラ支持部18を窓ガラス102に固定する。
(Flexible roller support process)
Next, as shown in FIGS. 19A and 19B, the roller support portion 18 is fixed to the window glass 102 so as to surround the flexible plate-like member 12 supported by suspension. Specifically, four hand suction boards 48 provided on the rail frame 54 of the roller support portion 18 are fixed to the window glass 102, and the roller support portion 18 is fixed to the window glass 102.
 次に、図20(A)、(B)に示すように、押圧部22をローラ支持部18のレール56のスロープ70部分から装着する。これにより、貼合装置10が組み立てられる。 Next, as shown in FIGS. 20A and 20B, the pressing portion 22 is mounted from the slope 70 portion of the rail 56 of the roller support portion 18. Thereby, the bonding apparatus 10 is assembled.
 (貼合工程)
 次に、押圧部材であるローラ16で前記可撓性板状部材12を押圧し、前記可撓性板状部材12の湾曲を貼合方向に向かって矯正させて、液晶パネル106の湾曲を貼合方向に向かって矯正し、液晶パネル106を窓ガラス102に粘着層52を介して貼合する。
 図21に従って、窓ガラス102と液晶パネル106との貼合手順について説明する。なお、図21では、図面の煩雑さを避けるため、ローラ支持部18の図示を省略している。
(Bonding process)
Next, the flexible plate-like member 12 is pressed by the roller 16 which is a pressing member, and the curvature of the flexible plate-like member 12 is corrected toward the bonding direction, and the curve of the liquid crystal panel 106 is pasted. The liquid crystal panel 106 is bonded to the window glass 102 through the adhesive layer 52 while correcting in the bonding direction.
A procedure for bonding the window glass 102 and the liquid crystal panel 106 will be described with reference to FIG. In FIG. 21, the illustration of the roller support portion 18 is omitted to avoid complexity of the drawing.
 図21(A)~(C)は、押圧部22をローラ支持部18のレール56に装着する手順を細かく説明したものであり、図21(A)の如く、押圧部22は、レール56の上方から図21(B)の如く、レール56の上端(図7の二点鎖線で示す位置)に装着される。 21 (A) to 21 (C) explain in detail the procedure for mounting the pressing portion 22 on the rail 56 of the roller support portion 18. As shown in FIG. As shown in FIG. 21B from above, the rail 56 is attached to the upper end (position indicated by a two-dot chain line in FIG. 7).
 この状態でローラ操作バー60を把持し、ローラ操作バー60を押し下げてローラ16による貼合を開始する。 In this state, the roller operation bar 60 is gripped, and the roller operation bar 60 is pushed down to start bonding with the roller 16.
 図21(B)の位置から、実質的な貼合開始位置である図21(C)に示す位置(図10の実線で示す位置)までのローラ16の移動において、前述したダミーシート86の作用によって、ローラ16は、可撓性板状部材12の剛性の差による影響を受けることなく、実質的な貼合開始位置に円滑に移動される。 In the movement of the roller 16 from the position shown in FIG. 21B to the position shown in FIG. 21C (the position shown by the solid line in FIG. 10), which is a substantial bonding start position, the above-described dummy sheet 86 acts. Thus, the roller 16 is smoothly moved to a substantial bonding start position without being affected by the difference in rigidity of the flexible plate-like member 12.
 次に、図21(C)~(E)に示すように、ローラ操作バー60を介して可撓性のローラ16を可撓性板状部材12の背面から窓ガラス102に向けて押圧して貼合荷重を付与する。これによって、液晶パネル106の上端(貼合開始端)を窓ガラス102に貼合する。そして、可撓性板状部材12の上端から下端に向けてローラ16を下降移動させる。これにより、ローラ16の移動方向に存在する可撓性板状部材12部分の湾曲が、スプリング24Dの付勢力に抗して平坦に矯正されていくので、液晶パネル106の貼合面は、上端から下端に向けて窓ガラス102に順次貼合されていく。このようなスプリング24D及び可撓性のローラ16による作用によって、液晶パネル106の貼合面は、気泡を巻き込むことなく窓ガラス102に貼合される。 Next, as shown in FIGS. 21C to 21E, the flexible roller 16 is pressed from the back surface of the flexible plate-shaped member 12 toward the window glass 102 via the roller operation bar 60. A bonding load is applied. Thereby, the upper end (bonding start end) of the liquid crystal panel 106 is bonded to the window glass 102. Then, the roller 16 is moved downward from the upper end to the lower end of the flexible plate member 12. Thereby, the bending of the flexible plate-like member 12 portion existing in the moving direction of the roller 16 is corrected flat against the urging force of the spring 24D, so that the bonding surface of the liquid crystal panel 106 has an upper end. Are sequentially bonded to the window glass 102 toward the lower end. By the action of the spring 24D and the flexible roller 16, the bonding surface of the liquid crystal panel 106 is bonded to the window glass 102 without entraining bubbles.
 図21(E)に示すように、押圧部22は、液晶パネル106の下方位置に配置されたスポンジ部材84を超えた位置まで移動され、ここが貼合終了位置となる。この時点で、可撓性板状部材12による液晶パネル106の吸着保持を解除する。
 上記したように、本発明の貼合装置の押圧部材を用いることにより、可撓性板状部材を湾曲に抗して貼合方向に向かって矯正させ、貼合方向に直交する方向で前記第1の基板に倣うように変形させながら前記第2の基板を前記第1の基板に順次貼合することができる。
As shown in FIG. 21 (E), the pressing portion 22 is moved to a position beyond the sponge member 84 disposed at the lower position of the liquid crystal panel 106, and this is the bonding end position. At this time, the suction holding of the liquid crystal panel 106 by the flexible plate-like member 12 is released.
As described above, by using the pressing member of the bonding apparatus of the present invention, the flexible plate-like member is corrected against the curve in the bonding direction, and the first in the direction orthogonal to the bonding direction. The second substrate can be sequentially bonded to the first substrate while being deformed so as to follow the first substrate.
 なお、上記貼合動作は、貼合開始位置から貼合終了位置までローラ16を1回移動させる貼合動作であるが、更に貼合終了位置から貼合開始位置までローラ16を上昇移動させ、上下一往復の貼合動作で貼合を実施してもよい。 In addition, although the said bonding operation | movement is the bonding operation | movement which moves the roller 16 once from the bonding start position to the bonding end position, the roller 16 is further moved up from the bonding end position to the bonding start position, Bonding may be carried out by one round of up and down bonding operation.
 以上の手順により窓ガラス102に対する液晶パネル106の貼合作業が終了する。 By the above procedure, the bonding operation of the liquid crystal panel 106 to the window glass 102 is completed.
 貼合作業の終了後、貼合装置10を窓ガラス102から取り外す。 After completion of the bonding work, the bonding apparatus 10 is removed from the window glass 102.
 その取り外し作業は、まず、押圧部22をレール56から取り外す。次に、ローラ支持部18を窓ガラス102から取り外し、可撓性板状部材12をハンガーユニット14から取り外す。そして、最後に、ハンガーユニット14を窓ガラス102から取り外す。これにより、窓ガラス102に液晶パネル106が貼合された画像表示装置を構成することができる。 In the removal operation, first, the pressing portion 22 is removed from the rail 56. Next, the roller support portion 18 is removed from the window glass 102, and the flexible plate member 12 is removed from the hanger unit 14. Finally, the hanger unit 14 is removed from the window glass 102. Thereby, the image display apparatus by which the liquid crystal panel 106 was bonded to the window glass 102 can be comprised.
 〔実施形態の特徴:貼合工程〕
 上記説明したように、建築物に鉛直方向に設置された窓ガラス102においては、窓ガラス102自体に反り(貼合進行方向に対して直交方向の反り)が元々ある場合、又はローラ16の貼合荷重によって貼合中に窓ガラス102に反りが発生する場合がある。これらの場合には、反りに追従する対策を施すことが必要となる。
[Features of Embodiment: Bonding Step]
As described above, in the window glass 102 installed in the vertical direction in the building, when the window glass 102 itself has a warp (a warp in a direction orthogonal to the pasting direction), or the roller 16 is pasted. The window glass 102 may be warped during bonding due to a combined load. In these cases, it is necessary to take measures to follow the warp.
 反りに追従する対策として、本発明の実施態様においては、ローラ16によって液晶パネル106に貼合荷重を直接付与するのではなく、弾性変形可能な可撓性板状部材12を介して貼合荷重を付与するようにした。これにより、可撓性を有するローラ16の軸方向において、複数の押圧部22が配置された位置部分の押圧力が強く、その他の部分の押圧力が弱くなるというバラつきが生じ難くなる。すなわち、可撓性板状部材12によって、ローラ16の軸方向における押圧力が均一化される。これにより、窓ガラス102の反り形状に沿って液晶パネル106の反り形状を精度良く追従させることができる。 As a countermeasure to follow the warp, in the embodiment of the present invention, the bonding load is not directly applied to the liquid crystal panel 106 by the roller 16 but via the elastic plate member 12 that can be elastically deformed. Was added. As a result, in the axial direction of the roller 16 having flexibility, the pressing force at the position portion where the plurality of pressing portions 22 are arranged is strong and the pressing force at other portions is less likely to vary. That is, the pressing force in the axial direction of the roller 16 is made uniform by the flexible plate-like member 12. Thereby, the warp shape of the liquid crystal panel 106 can be accurately followed along the warp shape of the window glass 102.
 したがって、窓ガラス102自体に反りがある場合や貼合時に反りが発生した場合であっても、窓ガラス102と液晶パネル106との間の粘着層界面に気泡が入り込むことなく液晶パネル106を精度良く貼合することができる。 Therefore, even when the window glass 102 itself is warped or warped during bonding, the liquid crystal panel 106 can be accurately adjusted without bubbles entering the adhesive layer interface between the window glass 102 and the liquid crystal panel 106. Can be bonded well.
 これにより、実施形態の貼合方法及び貼合装置10によれば、窓ガラス102に反りがある場合、貼合時に反りが発生した場合であっても、窓ガラス102と液晶パネル106との間の粘着層界面に気泡が入り込むことなく、貼合することができる。よって、実施形態によれば、建築物の窓ガラス102に液晶パネル106を貼合し、画像表示装置を構成する現場貼合において特に有効である。
 上述した実施形態では、第1の基板が、窓ガラス102である場合について説明したが、図1のように窓ガラス102に透明面材110(例えばガラス)が第1の粘着層により貼合されて第1の基板が構成されている場合には、上述した実施形態の貼合方法において、液晶パネル106等の第2の基板を貼り合わせる対象は、窓ガラス102ではなく、透明面材110の第2の面となるが、その他の工程は同様である。
Thereby, according to the bonding method and the bonding apparatus 10 of the embodiment, even when the window glass 102 is warped, even when the warp is generated during the bonding, between the window glass 102 and the liquid crystal panel 106. Bonding can be performed without air bubbles entering the adhesive layer interface. Therefore, according to the embodiment, the liquid crystal panel 106 is bonded to the window glass 102 of the building, and this is particularly effective in the on-site bonding that constitutes the image display device.
In the above-described embodiment, the case where the first substrate is the window glass 102 has been described. However, as shown in FIG. 1, the transparent surface material 110 (for example, glass) is bonded to the window glass 102 by the first adhesive layer. When the first substrate is configured, in the bonding method of the above-described embodiment, the object to be bonded to the second substrate such as the liquid crystal panel 106 is not the window glass 102 but the transparent surface material 110. Although it becomes a 2nd surface, the other process is the same.
 また、貼合工程において窓ガラス102の非貼合面に補強部材15を設けてもよい。これにより、ローラ16で貼合荷重をかけても、窓ガラス102の反りの発生を抑えることができる。その結果、窓ガラス102と液晶パネル106との間の粘着層界面に気泡が入り込むことなく液晶パネル106を精度良く貼合することができる。 Moreover, you may provide the reinforcement member 15 in the non-bonding surface of the window glass 102 in a bonding process. Thereby, even if it applies the bonding load with the roller 16, generation | occurrence | production of the curvature of the window glass 102 can be suppressed. As a result, the liquid crystal panel 106 can be bonded with high accuracy without bubbles entering the adhesive layer interface between the window glass 102 and the liquid crystal panel 106.
 上記説明した実施形態では、本発明の基板の貼合装置及び積層体の製造方法を、建築物の窓ガラス(第1の基板)に液晶パネル(第2の基板)を現場貼合する一例で説明したが、これに限定されず、第1の基板が鉛直方向又は鉛直方向から傾斜した状態、あるいは平置き状態の何れにも適用することができることは言うまでもない。 In embodiment described above, the board | substrate bonding apparatus of this invention and the manufacturing method of a laminated body are examples which bond a liquid crystal panel (2nd board | substrate) to the window glass (1st board | substrate) of a building in the field. Although described, the present invention is not limited to this, and it goes without saying that the first substrate can be applied to any of a vertical direction, a state inclined from the vertical direction, or a flat state.
 本発明の基板の貼合装置及び積層体の製造方法並びに画像表示装置の製造方法によれば、第1の基板に反りがある場合や貼合時に反りが発生した場合であっても第1の基板と第2の基板との間の粘着界面に気泡が入りこむことなく2枚の基板を精度よく貼合し、積層体を製造できる。
 なお、2014年8月29日に出願された日本特許出願2014-175227号および2014年11月12日に出願された日本特許出願2014-229590号の明細書、特許請求の範囲、図面および要約書の全内容をここに引用し、本発明の開示として取り入れるものである。
According to the board | substrate bonding apparatus of this invention, the manufacturing method of a laminated body, and the manufacturing method of an image display apparatus, even if it is a case where a curvature generate | occur | produces at the time of bonding, when a 1st board | substrate has curvature. A laminated body can be manufactured by bonding two substrates with high accuracy without air bubbles entering the adhesive interface between the substrate and the second substrate.
The specification, claims, drawings and abstract of Japanese Patent Application No. 2014-175227 filed on August 29, 2014 and Japanese Patent Application No. 2014-229590 filed on November 12, 2014. The entire contents of which are incorporated herein by reference.
 10…貼合装置、12…可撓性板状部材、12A…リング、14…ハンガーユニット(支持部)、15…補強部材、15A…定盤、15B…フレーム、15C…吸着部(ハンド吸着盤)、15D…保持フレーム、15E…当接部材、15F…爪部、15G…保持アーム、15H…連結アーム、16…ローラ(押圧部材)、18…ローラ支持部、20…貼合荷重調整機構部、22…押圧部、24…湾曲させる部材(湾曲部材)、24A…プレート、24B…プッシャ、24C…弾性体、24D…スプリング、24E…ウエイト部材、24F…牽引ロープ、24G…プ―リ、26…可撓板、28…スポンジ部材、30…多孔性シート、32…隙間、34…接着剤、35…吸引路、36…吸引ポート、38…吸引ホース、40…真空ポンプ、42…接着剤、44…水平方向位置調整部、44A…レール状部材、44B…リニアスライダ、46…鉛直方向位置調整部、48…ハンド吸着盤、50…ターンバックル、50A…フック、52…粘着層、54…レールフレーム、55…非接触チャック、56…レール、56A…内壁面、56B…ローラガイド面、57…取り付け軸、58…連結棒、60…ローラ操作バー、62…係合部、64…車輪、66…車輪ユニット、68…ブラケット、70…スロープ、72…水平面、74…スライダ、76…ブラケット、78…スプリング、80…バックアップローラ、82…ピン、84…スポンジ部材、86…ダミーシート、88…粘着部材、100…画像表示装置、102…第1の基板(窓ガラス)、106…第2の基板(液晶パネル)、110…透明面材(ガラス板)、112…遮光部、114…第1の粘着層、116…第2の粘着層。 DESCRIPTION OF SYMBOLS 10 ... Pasting apparatus, 12 ... Flexible plate-shaped member, 12A ... Ring, 14 ... Hanger unit (support part), 15 ... Reinforcement member, 15A ... Surface plate, 15B ... Frame, 15C ... Adsorption part (hand adsorption board) ), 15D ... Holding frame, 15E ... Abutting member, 15F ... Claw part, 15G ... Holding arm, 15H ... Connecting arm, 16 ... Roller (pressing member), 18 ... Roller support part, 20 ... Bonding load adjusting mechanism part , 22 ... pressing part, 24 ... member to bend (curving member), 24A ... plate, 24B ... pusher, 24C ... elastic body, 24D ... spring, 24E ... weight member, 24F ... tow rope, 24G ... pulley, 26 DESCRIPTION OF SYMBOLS Flexible plate 28 ... Sponge member 30 ... Porous sheet 32 ... Gap 34 ... Adhesive 35 ... Suction path 36 ... Suction port 38 ... Suction hose 40 ... Vacuum pump 42 Adhesive, 44: horizontal position adjustment unit, 44A: rail-like member, 44B ... linear slider, 46 ... vertical position adjustment unit, 48 ... hand suction board, 50 ... turnbuckle, 50A ... hook, 52 ... adhesive layer, 54 ... Rail frame, 55 ... Non-contact chuck, 56 ... Rail, 56A ... Inner wall surface, 56B ... Roller guide surface, 57 ... Mounting shaft, 58 ... Connecting rod, 60 ... Roller operation bar, 62 ... Engagement part, 64 ... Wheel, 66 ... Wheel unit, 68 ... Bracket, 70 ... Slope, 72 ... Horizontal plane, 74 ... Slider, 76 ... Bracket, 78 ... Spring, 80 ... Backup roller, 82 ... Pin, 84 ... Sponge member, 86 ... Dummy sheet, DESCRIPTION OF SYMBOLS 88 ... Adhesive member, 100 ... Image display apparatus, 102 ... 1st board | substrate (window glass), 106 ... 2nd board | substrate (liquid crystal panel), 110 Transparent surface material (glass plates), 112 ... light-shielding portion, 114 ... first adhesive layer, 116 ... second adhesive layer.

Claims (10)

  1.  水平面に対して鉛直方向又は鉛直方向から傾斜して設けられている第1の基板に粘着層を介して第2の基板を貼合する基板の貼合装置において、
     前記第2の基板を吸着固定する吸着部材を有し弾性変形可能な可撓性板状部材と、
     前記第1の基板に前記可撓性板状部材を支持させる支持部材と、
     前記可撓性板状部材を湾曲させる部材と、
     前記可撓性板状部材を押圧し、前記第2の基板を前記第1の基板に貼合する押圧部材と、
     を備えたことを特徴とする基板の貼合装置。
    In the substrate bonding apparatus for bonding the second substrate to the first substrate provided by being inclined from the vertical direction or the vertical direction with respect to the horizontal plane,
    A flexible plate-like member having an adsorbing member for adsorbing and fixing the second substrate and capable of elastic deformation;
    A support member for supporting the flexible plate member on the first substrate;
    A member that curves the flexible plate-like member;
    A pressing member that presses the flexible plate-like member and bonds the second substrate to the first substrate;
    The board | substrate bonding apparatus characterized by the above-mentioned.
  2.  前記第2の基板の全面に前記可撓性板状部材を吸着させて保持する保持部材を有する請求項1に記載の基板の貼合装置。 The board | substrate bonding apparatus of Claim 1 which has a holding member which adsorb | sucks and hold | maintains the said flexible plate-shaped member on the whole surface of a said 2nd board | substrate.
  3.  前記可撓性板状部材は、前記第2の基板を粘着固定する粘着部材をさらに有する請求項1又は2に記載の基板の貼合装置。 The substrate bonding apparatus according to claim 1 or 2, wherein the flexible plate-shaped member further includes an adhesive member that adhesively fixes the second substrate.
  4.  前記粘着部材は、前記可撓性板状部材の少なくとも2箇所に配置されている請求項3に記載の基板の貼合装置。 The said adhesive member is the bonding apparatus of the board | substrate of Claim 3 arrange | positioned at at least 2 places of the said flexible plate-shaped member.
  5.  前記可撓性板状部材が矩形条であり、
     前記粘着部材が、前記可撓性板状部材の角部に配置されている請求項3に記載の基板の貼合装置。
    The flexible plate member is a rectangular strip;
    The board | substrate bonding apparatus of Claim 3 with which the said adhesion member is arrange | positioned at the corner | angular part of the said flexible plate-shaped member.
  6.  前記粘着部材は、ショアA硬度が70以下、表面粗さがRa0.2μm以下である請求項3~5のいずれか1項に記載の基板の貼合装置。 The substrate bonding apparatus according to any one of claims 3 to 5, wherein the adhesive member has a Shore A hardness of 70 or less and a surface roughness of Ra 0.2 µm or less.
  7.  前記第1の基板が窓ガラスであり、前記第2の基板が画像表示パネルである請求項1~6のいずれか1項に記載の基板の貼合装置。 The substrate bonding apparatus according to any one of claims 1 to 6, wherein the first substrate is a window glass, and the second substrate is an image display panel.
  8.  第2の基板を、吸着部材を有し弾性変形可能な可撓性板状部材に固定する工程と、
     前記可撓性板状部材を、水平面に対して鉛直方向又は鉛直方向から傾斜して設けられている第1の基板に支持部材により支持する工程と、
     前記可撓性板状部材を湾曲させることにより、前記第2の基板を前記第1の基板に対して凸状に湾曲させる湾曲工程と、
     押圧部材で前記可撓性板状部材を押圧し、前記可撓性板状部材の湾曲を貼合方向に向かって矯正させて前記第2の基板の湾曲を貼合方向に向かって矯正し、前記第2の基板を前記第1の基板に粘着層を介して貼合する貼合工程と、
     を備えたことを特徴とする積層体の製造方法。
    Fixing the second substrate to a flexible plate-like member having an adsorbing member and elastically deformable;
    A step of supporting the flexible plate-like member by a support member on a first substrate provided to be inclined from a vertical direction or a vertical direction with respect to a horizontal plane;
    A bending step of bending the second substrate in a convex shape with respect to the first substrate by bending the flexible plate-like member;
    Pressing the flexible plate-shaped member with a pressing member, correcting the curvature of the flexible plate-shaped member toward the bonding direction, and correcting the curve of the second substrate toward the bonding direction; A bonding step of bonding the second substrate to the first substrate via an adhesive layer;
    A method for producing a laminate, comprising:
  9.  前記可撓性板状部材が粘着部材をさらに有し、前記第2の基板を前記可撓性板状部材に吸着部材と粘着部材により固定する請求項8に記載の積層体の製造方法。 The method for producing a laminate according to claim 8, wherein the flexible plate-like member further has an adhesive member, and the second substrate is fixed to the flexible plate-like member with an adsorption member and an adhesive member.
  10.  第1の基板が窓ガラスであり、第2の基板が画像表示パネルであって、請求項8または9に記載の積層体の製造方法により前記窓ガラスと前記画像表示パネルとを貼合せることを特徴とする画像表示装置の製造方法。 A 1st board | substrate is a window glass and a 2nd board | substrate is an image display panel, Comprising: The said window glass and the said image display panel are bonded together by the manufacturing method of the laminated body of Claim 8 or 9. A method for manufacturing an image display device.
PCT/JP2015/074489 2014-08-29 2015-08-28 Substrate bonding device, laminate manufacturing method, and image display device manufacturing method WO2016031978A1 (en)

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