WO2016031979A1

WO2016031979A1 - Substrate bonding apparatus, laminate production method, and image-display-device production method

Info

Publication number: WO2016031979A1
Application number: PCT/JP2015/074495
Authority: WO
Inventors: 泰則伊藤; 優貴立山; 雄貴堀
Original assignee: 旭硝子株式会社
Priority date: 2014-08-29
Filing date: 2015-08-28
Publication date: 2016-03-03
Also published as: JP2017187514A

Abstract

The purpose of the present invention is to provide: a substrate bonding apparatus and bonding method with which work related to the positioning of a second substrate on a first substrate can be easily performed; and an image display device. In a position adjustment step of a laminate production method according to an embodiment of the present invention, a hanger unit (14) is detachably supported on a glass window (102), a sheet-like member (12) is detachably attached to the hanger unit (14), and, thereafter, the position of the sheet-like member (12) in the horizontal direction is adjusted by a horizontal-direction-position adjustment unit (44), and the position of the sheet-like member (12) in the vertical direction is adjusted by a vertical-direction-position adjustment unit (46), to adjust, to a desired position, the bonding position of a liquid crystal panel (106) on the glass window (102). A worker can adjust the bonding position by just operating the horizontal-direction-position adjustment unit (44) and the vertical-direction-position adjustment unit (46) of the hanger unit (14), without bearing the weight of the sheet-like member (12) and the liquid crystal panel (106).

Description

Substrate laminating apparatus, laminate manufacturing method, and image display apparatus manufacturing method

The present invention relates to a substrate bonding apparatus, a laminate manufacturing method, and an image display apparatus manufacturing method.

In recent years, an image display panel (for example, a liquid crystal panel. This image display panel is also referred to as a second substrate) via an adhesive layer on a window glass of a building (hereinafter, this window glass is also referred to as a first substrate). Assembling a digital signage (image display device) at the site is being studied. According to this digital signage, a passer-by can check the display content of the liquid crystal panel from the outside of the store or office through the window glass, and can be used effectively as a signboard, an advertisement, or the like.

By the way, in the digital signage of the said form, since it influences an image quality when air bubbles are involved in the adhesion layer interface between a window glass and a liquid crystal panel at the time of pasting, it is hoped that it pastes without entraining air bubbles. It is rare.

Patent Document 1 discloses a bonding apparatus that bonds a cover glass on the upper surface of a touch panel (also referred to as a liquid crystal panel) held in a horizontal state.

In the bonding method using the bonding apparatus of Patent Document 1, first, the liquid crystal panel is sucked and held on the upper surface of the flat suction table installed in the horizontal direction, and both end portions of the cover glass provided with the adhesive layer are respectively held by the holding portions. Hold. Next, the cover glass is bent and held by a cantilever bending method by relatively changing the heights of both holding portions. Next, in order to bond the cover glass to the liquid crystal panel, a certain pressure is applied to the cover glass via a rotating roller, and one end of the cover glass is bonded to the liquid crystal panel. Thereafter, while maintaining the pressure of the rotating roller, while moving the rotating roller toward the other end of the cover glass, the holding portion on the other end side is moved downward to gradually bend the other end of the cover glass. While returning to the horizontal position, the entire surface of the cover glass is bonded to the liquid crystal panel.

JP 2013-80046 A

Although the bonding apparatus of patent document 1 is an apparatus which bonds glass board | substrates, it is not an apparatus which bonds a liquid crystal panel to an existing window glass, without involving a bubble. That is, it is not an apparatus for bonding a liquid crystal panel to a window glass at a construction site where the window glass is installed.

Further, when the liquid crystal panel is bonded to the window glass, there is a problem that the operation of determining the bonding position of the liquid crystal panel with respect to the window glass becomes difficult as the liquid crystal panel becomes larger. This problem also applies to the positioning operation of the liquid crystal panel with respect to the glass plate installed or arranged in a direction other than the vertical direction (for example, an inclined direction inclined with respect to the vertical direction or a horizontal direction).

The present invention has been made in view of such circumstances, and a substrate laminating apparatus, a laminate manufacturing method, and an image display apparatus capable of easily positioning a second substrate with respect to a first substrate. It aims at providing the manufacturing method of.

The board | substrate bonding apparatus of 1 aspect of this invention is the 2nd through the adhesion layer on the 1st board | substrate provided inclining from a perpendicular direction or a perpendicular direction with respect to a horizontal surface in order to achieve the said objective. In the laminating apparatus for laminating the substrate, the plate-like member holding the second substrate and the attachment position of the plate-like member to the first substrate while being detachably attached to the first substrate And a pressing member that presses the plate-like member to sequentially bond the second substrate to the first substrate.

In order to achieve the above object, a manufacturing method of a laminate according to one embodiment of the present invention includes a holding step of detachably holding the second substrate on a plate-like member, and position adjustment with respect to the first substrate. A position adjusting step of detachably attaching the means, detachably attaching the plate-like member to the position adjusting means, and adjusting the attachment position of the plate-like member with respect to the first substrate by the position adjusting means; An arrangement step of disposing the second substrate away from the first substrate and pressing the plate-like member to sequentially bond the second substrate to the first substrate via the adhesive layer. And a bonding step.

According to one aspect of the present invention, when the second substrate is bonded to the first substrate that is provided in a direction perpendicular to the horizontal plane or inclined from the vertical direction, first, in the holding step, The two substrates are detachably held on a flat plate member.

Next, in the position adjusting step, the position adjusting means is detachably attached to the first substrate, and the plate-like member is detachably attached to the position adjusting member, and then the position adjusting member is attached to the first substrate. Adjust the mounting position of the plate member.

That is, according to one embodiment of the present invention, the position adjustment member supported by the first substrate or the support portion of the first substrate is used, and the attachment position of the plate-shaped member described above, that is, the second position with respect to the first substrate. Adjust the bonding position of the substrate. When adjusting the bonding position, the second substrate is supported by the first substrate or the support portion via the position adjustment member, so that the position of the second substrate is not borne. Just by operating the adjustment member, the bonding position can be adjusted. Thus, according to one embodiment of the present invention, the positioning operation of the second substrate with respect to the first substrate can be easily performed.

Next, the second substrate is placed apart from the first substrate in the placement step.

Further, in the arranging step, it is preferable that the plate-like member is provided with a member to bend, and the plate-like member is bent to curve the second substrate in a convex shape with respect to the first substrate.

Next, in the bonding step, the plate member is pressed toward the first substrate by the pressing member. Thereby, a part of the pressed second substrate is bonded to the first substrate. Thereafter, the pressing member is moved toward one end of the plate-like member. Thereby, since the plate-shaped member existing in the moving direction of the pressing member is corrected flatly, the bonding surface of the second substrate is sequentially bonded to the first substrate toward one end. By such an action of the pressing member, the bonding surface of the second substrate is bonded to the first substrate without entraining bubbles.

One embodiment of the present invention is suitable for on-site bonding of a second substrate to an existing first substrate, but is not limited to on-site bonding, for example, the first substrate at a bonding factory. It is applicable also to the factory bonding which bonds a 2nd board | substrate.

1 aspect of the board | substrate bonding apparatus of this invention WHEREIN: The said position adjustment member is provided with the vertical direction position adjustment part and the horizontal direction position adjustment part, and with respect to the said 1st board | substrate arrange | positioned by the perpendicular direction, Preferably, the vertical position of the plate member is adjusted by the vertical position adjustment unit, and the horizontal position of the plate member is adjusted by the horizontal position adjustment unit.

1 aspect of the manufacturing method of the laminated body of this invention WHEREIN: The said position adjustment member is provided with the vertical direction position adjustment part and the horizontal direction position adjustment part, and the said 1st arrange | positioned in the vertical direction in the said position adjustment process. It is preferable that the vertical position of the plate-shaped member is adjusted by the vertical position adjusting unit and the horizontal position of the plate-shaped member is adjusted by the horizontal position adjusting unit.

One mode of the present invention is a mode suitable for on-site bonding of a second substrate to an existing first substrate installed in a vertical direction. That is, the position adjusting means includes a vertical position adjusting unit and a horizontal position adjusting unit. In the position adjusting step, the vertical position adjusting unit is provided for the first substrate arranged in the vertical direction. Operate to adjust the vertical position of the plate-shaped member, and operate the horizontal position adjustment unit to adjust the horizontal position of the plate-shaped member. That is, the plate member can be positioned without burdening the mass of the plate member holding the second substrate by suction. Therefore, the bonding position of the second substrate with respect to the existing first substrate installed in the vertical direction can be easily adjusted.

According to one embodiment of the substrate bonding apparatus and the laminate manufacturing method of the present invention, it is preferable that the first substrate is a window glass and the second substrate is an image display panel.

In the manufacturing method of the image display device of one embodiment of the present invention, in order to achieve the above object, the first substrate is a window glass, and the window glass, the image display panel, It is characterized by laminating.

According to one embodiment of the present invention, it is possible to easily adjust the bonding position of the image display panel with respect to the window glass, and it is possible to bond without entraining air bubbles. Equipment can be provided.

As described above, according to the substrate bonding apparatus, the laminate manufacturing method, and the image display apparatus manufacturing method of the present invention, the positioning operation of the second substrate with respect to the first substrate can be easily performed. .

Vertical section of digital signage 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. Illustration of plate-like member Illustration of pasting load distribution by roller View from arrow C-C 'in Fig. 3 (A) Side view of the main part showing the state of bonding with a roller Explanatory drawing of bending part Explanatory drawing which showed the assembly procedure of the bonding apparatus in the field bonding Explanatory drawing which showed the assembly procedure of the bonding apparatus in the field bonding Explanatory drawing which showed the assembly procedure of the bonding apparatus in the field bonding Explanatory drawing of sponge member at the time of pasting Explanatory drawing which showed the assembly procedure of the bonding apparatus in the field bonding Assembly completed drawing of the bonding device in the field bonding Explanatory drawing which showed the pasting process in field pasting in time series The perspective view of the example of an embodiment of a reinforcing member The perspective view of the example of an embodiment of a reinforcing member The perspective view of the example of an embodiment of a reinforcing member

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.

First, an image display device bonded and assembled by the substrate bonding apparatus and the laminate manufacturing method of the embodiment will be described.

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.

<Image display device 100>
The image display apparatus 100 according to the present embodiment 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 second substrate. The liquid crystal panel 106 is laminated in this order. Hereinafter, each member will be described.

(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.

(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 110 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. 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 as the transparent face material 110, the use of a glass plate is preferable.
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 of the present invention.

Examples of glass plates include glass materials such as soda lime glass. Examples of the resin plate 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.

(Shading part)
It is preferable to have a light shielding portion 112 at the peripheral end of the transparent face material 110. By providing the light shielding portion 112 on the transparent surface material 110, 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. When the transparent surface material 110 is a glass plate, the light shielding part 112 can be formed using a ceramic paint composition containing a black pigment using a printing method such as ceramic printing. The light shielding part 112 formed by the ceramic printing method is preferable for improving the light shielding property. The light shielding portion 112 can be formed using various thin film forming methods.

(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.

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 110. The areas of the first adhesive layer 114 and the second adhesive layer 116 may be the same or different. As an example when the areas are different, when the light shielding portion 112 is provided on the second surface 110 b of the transparent surface material (glass plate) 110, the first adhesive layer 114 is the first surface of the transparent surface material (glass plate) 110. The second adhesive layer 116 is provided in a partial region of the second surface 110b of the transparent surface material (glass plate) 110, whereas the second adhesive layer 116 is provided over the entire surface 110a. Thereby, the 2nd surface 110b of the transparent surface material (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.

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.

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.

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.

The liquid crystal panel 106 is supported by the window glass 102 via an adhesive layer or an adhesive layer and a glass plate (transparent surface material) 110. Since the liquid crystal panel 106 and the backlight 126 are independent, the backlight 126 is supported by the window glass 102 or the glass plate (transparent surface material) 110 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. In FIG. 1, the angle 144 is fixed to the light shielding portion 112 on the second surface 110 b of the glass plate (transparent surface material) 110 by 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 via the glass plate (transparent surface material) 110.

<< 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.

This invention is the manufacturing method of the bonding apparatus of the board | substrate which bonds the surface (bonding surface) of a 2nd board | substrate through the adhesion layer to the surface (bonding surface) of a 1st board | substrate, Although the first 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 board | substrate bonding apparatus and the manufacturing method of a laminated body of this invention are applicable to any of the state which the 1st board | substrate inclined from the perpendicular direction or the perpendicular direction with respect to the horizontal surface, or the state of a horizontal direction. Especially, it is preferable to apply with respect to the state inclined from the perpendicular direction or the perpendicular direction with respect to the horizontal surface.
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.

About the bonding apparatus of embodiment and the manufacturing method of a laminated body, the liquid crystal panel 106 which is a 2nd board | substrate is bonded to the window glass 102 which is a 1st board | substrate through the adhesion layer, and the window glass 102, the 1st. An example of manufacturing the image display device 100 having the adhesive layer 114, the glass plate (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 | positioned in the orthogonal | vertical direction with respect to the horizontal surface. 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 glass plate 110 is demonstrated.

[Bonding device 10]
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. It is the front view which made the window glass 102 support so that attachment or detachment was possible, (B) is a side view of (A).

3 (A) and 3 (B), the bonding apparatus 10 includes a plate-like member 12, a hanger unit 14 (position adjusting member), and a roller 16 (pressing member). In the bonding apparatus 10, the roller support part 18 which is arbitrary structures, the press part 22 provided with the stretchable bonding load adjustment mechanism part 20 which provides the bonding load to the roller 16, and the pusher 24B which is a member to curve. This will be described as a mode provided with (FIG. 8A).

<Plate-like member 12>
The plate member 12 is a member that sucks and holds the liquid crystal panel 106. When the plate-like member 12 is provided, a member to be bent and a pressing member, which will be described later, are not connected to or directly pressed to the liquid crystal panel 106, so that the liquid crystal panel can be prevented from being stained or damaged. It is preferable that the plate-like member 12 has flexibility. The plate-like member 12 is preferably larger than the area of the liquid crystal panel 106. Thereby, entrainment of a foam can be prevented to the pasting termination part.

In the present embodiment, the plate-like member 12 is a flexible plate-like member and will be described using an example having a larger area than the liquid crystal panel 106. Further, an example in which the plate-like member 12 holds the liquid crystal panel 106 by suction will be described below.

FIG. 4 is a longitudinal sectional view of the plate-like member 12.

As shown in FIG. 4, the plate member 12 includes a rectangular flexible plate 26, a frame-shaped closed-cell sponge member 28 bonded to the peripheral surface portion of the flexible plate 26, and the inner peripheral side of the sponge member 28. The rectangular porous sheet 30 is bonded to the flexible plate 26.

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.

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 (that is, a portion not adsorbing the liquid crystal panel 106), and these suction ports 36 are connected to the vacuum pump 40 via a suction hose 38.

Returning to FIG. 4, when the liquid crystal panel 106 is sucked and held by the plate-like 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 placed on the liquid crystal panel 106. It is blocked by. When the vacuum pump 40 is driven in this state, air is sucked through the suction hose 38, the suction port 36, the suction path 35, and the gap 32. As a result, an adsorption force is generated on the adsorption surface 30A of the porous sheet 30, so that the liquid crystal panel 106 is adsorbed and held 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). The sponge member 28 is preferably thicker than the porous sheet 30 and is elastically deformed to the thickness of the porous sheet 30 when the liquid crystal panel 106 is sucked and held. As a result, the gap 32 can be surely closed, so that the suction force for holding the liquid crystal panel 106 by suction increases.

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.

Further, the flexible plate 26 needs to have appropriate flexibility, and 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. 4, 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 on both sides). An adhesive tape) 42 can also be used. It is preferable to bond a conductive sheet (not shown) to the surface opposite to the surface where the porous sheet 30 of the flexible plate 26 is bonded. Thereby, generation | occurrence | production of static electricity can be suppressed at the time of bonding etc.

<Hanger unit 14: Position adjustment member>
The hanger unit 14 shown in FIG. 3 is a jig that suspends and supports the plate-like member 12 that holds the liquid crystal panel 106 by suction. By providing the hanger unit 14, the bonding can be completed without shifting the second substrate at the position determined before the bonding. The hanger unit 14 has the vertical position, inclination, and horizontal direction of the plate-like member 12 with the liquid crystal panel 106 facing the bonding position of the window glass 102 through a predetermined bonding gap. It is preferable that it is a jig which can adjust a position. 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.

As shown in FIG. 3A, the hanger unit 14 includes a horizontal position adjusting unit 44 that adjusts the horizontal position of the plate member 12 along the surface of the window glass 102 disposed in the vertical direction, and a window. A vertical position adjusting unit 46 that adjusts the vertical position and inclination of the plate-like member 12 is provided along the surface of the glass 102. In addition, the hanger unit 14 includes a pair of hand suction boards 48. By attaching these hand suction boards 48 to the window glass 102, the hanger unit 14 is detachably supported by the window glass 102. In addition, although it replaces with the hand suction board 48, the suction board 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 sucked to a wall (support) of a building that supports the window glass 102.

(Horizontal position adjustment unit 44)
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.

(Vertical direction position adjustment unit 46)
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.

(Operation of hanger unit 14)
In using the hanger unit 14, first, the two hand suction boards 48 are attracted to the surface of the window glass 102 so that the longitudinal direction of the rail-shaped member 44 </ b> A faces the horizontal direction. The suction position of the hand suction board 48 is a rough position corresponding to the desired bonding position of the liquid crystal panel 106. Then, the ring 12A attached to the upper end of the plate-like member 12 is detachably engaged with the hook 50A provided at the lower end of the pair of

turnbuckles

50, 50. Accordingly, the plate-like member 12 that holds the liquid crystal panel 106 by suction is supported by being hung on the hanger unit 14. Then, the rail-shaped member 44A is moved and adjusted in the horizontal direction, and the vertical length using the pair of

turnbuckles

50 and 50 is individually adjusted. When the

turnbuckles

50 and 50 are extended by the same length, 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 length, the position is raised in the vertical direction. The inclination can be adjusted by extending one of the

turnbuckles

50 and 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.

<Roller 16: Pressing member>
The bonding apparatus 10 of this embodiment is provided with the roller 16 (pressing member) in bonding of a 1st board | substrate and a 2nd board | substrate. The roller 16 has an axial length equal to or greater than the width of the liquid crystal panel 106. Thereby, a load can be uniformly applied to the second substrate. The roller 16 is continuously moved from the bonding start end that is the upper end of the liquid crystal panel 106 toward the 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 (hereinafter, this process is referred to as a bonding process). In addition, the said bonding load is provided to the plate-shaped member 12 through the roller 16 from the press part 22 mentioned later.

FIG. 5 is an explanation showing the 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. 5 is an adhesion layer. FIG. 5 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. Further, in FIG. 5, the illustration of the plate-like member 12 is omitted in order to avoid the complexity of the drawing.

In order to bond so that air bubbles do not enter the adhesive interface between the window glass 102 and the liquid crystal panel 106, the width W of the bonding load distribution P is reduced as much as possible, and the distribution center portion 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).

For this reason, it is preferable that the roller 16 has a harder roller surface and a thinner 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 warp of the window glass 102 is preferable. It is preferable that the roller 16 has flexibility so as to follow. 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.

Further, 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. If the thickness of the adhesive layer 52 is 2.0 mm or less, the thickness of the image display device does not become unnecessarily thick.

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.

<Roller support 18>
Returning to FIG. 3, the roller support portion 18 is a member that detachably supports the pressing portion 22 including the roller 16 and the bonding load adjusting mechanism portion 20 on the window glass 102.

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, 56 arranged in parallel in the vertical direction at intervals wider than the width of the plate-like member 12, and two connecting

members

58, 58 that connect the

rails

56, 56. The Note that the number of the hand suction boards 48 may be five or more.

FIG. 6 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. 7 is a side view of an essential part showing a bonding state by the roller 16.

<Pressing part 22>
As shown in FIGS. 6 and 7, the pressing portion 22 is a square bar operation bar 60 disposed 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 each other, and a laminating load adjusting mechanism 20 provided along the axial direction of the roller operation bar 60.

The engaging part 62 includes a wheel 64 and a wheel unit 66 in which the wheel shafts are arranged in an orthogonal direction.

The wheel 64 shown in FIG. 6 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.

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.

Further, as shown in FIG. 7, an inclined tapered slope 70 is provided at the upper end (right end in FIG. 7) 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. 7 using the slope 70.

<Bonding load adjustment mechanism 20>
As shown in FIG. 6, the bonding load adjusting mechanism 20 is provided at five positions, that is, 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.

As shown in FIG. 7, 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 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.

As shown in FIG. 6, the roller 16 is prevented from falling off the roller operation bar 60 by inserting a pin 82 protruding from the bracket 68 into the roller 16. The pair of backup rollers 80 are preferably crown-shaped. If a crown-shaped backup roller 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.

According to the bonding load adjusting mechanism 20, as shown by the two-dot chain line in FIG. 7, 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 plate member 12. Thereafter, as shown by the solid line in FIG. 7, when the pressing portion 22 moves from the slope 70 to the horizontal plane 72, the roller 16 presses the plate-like member 12, and the spring 78 contracts due to the reaction force, and is attached to the spring 78. Power is generated. This urging force is a bonding load applied to the roller 16.

<Curved member>
The bonding apparatus 10 of the present embodiment includes a pusher 24B (FIG. 8A) as a member that curves the liquid crystal panel 106 (second substrate) and the plate-like member 12. Therefore, the liquid crystal panel 106 and the plate-like member 12 are 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, and the liquid crystal panel 106 is curved convexly with respect to the window glass 102. . Thereby, the location where the liquid crystal panel 106 is not pressed does not come into contact with the window glass 102, that is, tipping is prevented, and as a result, air bubbles can be prevented from being caught in the bonding surface.

(Form of the member 24 to be curved)
The example of the member 24 to be bent is shown in two forms as shown in the explanatory views showing the bonding situation shown in FIGS.

The member 24 to be bent is detachably provided at at least two places in the width direction of the plate member 12 at the lower end of the plate member 12. 3A is provided with members 24 that bend in four places in the width direction of the plate-like member 12.

As shown in FIG. 8A, the pusher 24B used in the present embodiment is a push-up method in which the lower end portion of the 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 pusher 24B, a plate 24A is detachably fixed to a lower end portion of the plate-like member 12, and a pusher 24B is removably attached to an opening (not shown) of the plate 24A. An elastic body 24C that comes into 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. .

FIG. 8B shows another form of the member 24 to be bent. The member 24 to be bent in FIG. 8B is a pulling method in which the lower end portion of the plate-like member 12 is pulled by the weight of the weight member 24E in the direction in which it is retracted 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 fixing form of the plate 24A to the plate member 12 is not particularly limited. For example, it can be detachably attached to the plate member 12 by adopting a clamp method, a hand suction disk method, or the like.

(Adhesive layer 52)
The adhesive layer 52 shown in FIG. 5 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.

<Reinforcing member>
The bonding apparatus of this embodiment may provide a reinforcing member on the non-bonding surface of the window glass 102 (first substrate). 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.

Examples of the reinforcing member are shown in FIGS. 16, 17, and 18. FIG.
The reinforcing member 15 shown in FIG. 16 includes a surface plate 15A (adsorption surface plate) having an adsorption structure.
The reinforcing member 15 shown in FIG. 17A 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. 17B and 17C are provided with a plurality of frames 15D having rigidity against a 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.
18 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.

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.

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, in the case of on-site bonding, from the viewpoint of easy carrying of the reinforcing member 15 and easy attachment to the window glass 102, the material of the frame 15B is particularly preferably an aluminum alloy, FRP or other reinforced plastic that can easily reduce the weight.
Examples of the shapes of the frame 15B, the holding frame 15D, and the like are shown in FIGS. 16A to 16C, 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. 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. 17, 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.

18, the holding frame 15D is configured to include a holding arm 15G having a claw portion 15F that holds the surface plate 15A at an upper part and a lower part, and a connecting arm 15H that connects the holding arm. 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.

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. 18, the abutting member 15E is composed of 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.

The plate-like member 12, the hanger unit 14 (position adjusting member), the roller 16 (pressing member), the roller support portion 18, the pressing portion 22 provided with the bonding load adjusting mechanism portion 20, and the member 24 to be bent are respectively It is configured as an independent unit, and each unit has a maximum weight of 15 kg or less. Thereby, each unit can be handled easily. Therefore, when bonding on-site, each unit can be carried to the site and the bonding apparatus 10 can be easily assembled on-site.

[Method for producing laminate]
In the embodiment of the laminated body manufacturing method of the present invention, when the liquid crystal panel 106 (second substrate) is bonded to the window glass 102 (first substrate) installed in a building, the surface of the window glass 102. The method of manufacturing the laminated body (image display apparatus) by assembling the bonding apparatus 10 above and bonding the window glass 102 and the liquid crystal panel 106 using the assembled bonding apparatus 10 will be described.
As described above, the manufacturing method of the present laminate includes a holding step of detachably holding the second substrate (the liquid crystal panel 106) on the plate-like member,
A position adjustment member (hanger unit 12) is detachably attached to the first substrate (window glass 102), and the plate member is detachably attached to the position adjustment member, and the first substrate is attached by the position adjustment member. A position adjusting step of adjusting the mounting position of the plate-like member with respect to
An arrangement step of arranging the second substrate apart from the first substrate;
A laminating step of sequentially laminating the second substrate to the first substrate via an adhesive layer by pressing the plate-like member.
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.

<Assembly procedure of bonding apparatus 10>
First, the assembly procedure of the bonding apparatus 10 will be described with reference to FIGS.

As shown in the front view of FIG. 9 (A) and the side view of FIG. 9 (B), the rail-like member 44A is placed on the horizontal surface of the hand suction plate 48 of the hanger unit 14 on the window glass 102 installed perpendicular to the horizontal surface. Adsorb so that it is almost horizontal.

(Holding process)
Next, as shown in FIG. 10, in the present embodiment, the liquid crystal panel 106 is adsorbed to the flexible plate member 12 (plate member) in a flat state on the floor surface of the building to be bonded at the site. Hold. 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 to the flexible plate member 12. Thereafter, the pusher 24 </ b> B is attached to the flexible plate-like member 12, and the release sheet is peeled from the adhesive surface 52 attached to the liquid crystal panel 106.

FIG. 10 (A) is a front view of the flexible plate-like member 12 on which the liquid crystal panel 106 is held by suction, and FIG. 10 (B) is a side view of FIG. 10 (A). As shown in FIG. 10B, the flexible plate-like member 12 may be provided with a sponge member 84 and a dummy sheet 86.

As shown in FIGS. 10B and 11A, when a band-like sponge member 84 having a thickness larger than the thickness of the liquid crystal panel 106 is provided, the adhesive layer 52 and the window glass are pressed before pressing in the bonding process. Contact with 102 can be prevented. As shown in FIG. 11B, 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.

As shown in FIG. 10 (B) and FIG. 11, when a dummy sheet 86 having the same thickness as the liquid crystal panel 106 is provided, the entire flexible plate-like member 12 is placed before and after the bonding start position and the bonding end position. Since the difference in rigidity inside can be eliminated, the bonding at the start of the bonding can be carried out smoothly. As shown in FIG. 7, 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 Also, a bonding load from the flexible roller 16 is added. It is preferable to interpose the dummy sheet 86 because the difference in rigidity of the plate-like member 12 can be eliminated before and after the bonding start position, and the generation of bubbles can be reduced.

In FIG. 10B, 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.

In the holding step, when the release sheet is peeled from the adhesive layer 52, even when the sponge member 84 is provided, when the position of the flexible plate-like member 12 that holds 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.

(Position adjustment process)
Next, as shown in FIGS. 12A and 12B, the flexible plate-like member 12 in which the liquid crystal panel 106 is sucked and held by the hooks 50A of the pair of turnbuckles 50 of the hanger unit 14 (position adjusting member). The ring 12 </ b> A is detachably engaged, and 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.

Thereafter, the hanger unit 14 moves the flexible plate member 12 in the vertical direction indicated by the arrow D and the horizontal direction indicated by the arrow E, thereby positioning the liquid crystal panel 106 at the desired bonding position of the window glass 102. adjust.

(Arrangement process)
The flexible plate-like member 12 is bent by the member 24 for bending, and the liquid crystal panel 106 is separated from the window glass 102. In the position adjustment 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.

Next, as shown in FIGS. 13A and 13B, the roller support portion 18 is mounted on the window glass 102 so as to surround the flexible plate-like member 12 supported by suspension. That is, the four hand suction boards 48 provided on the rail frame 54 of the roller support portion 18 are attracted to the window glass 102. Thereby, the roller support part 18 is supported by the window glass 102.

Next, as shown in FIGS. 14A and 14B, the pressing portion 22 is attached to the rail 56 from the slope 70 portion of the rail 56. Thereby, the bonding apparatus 10 is assembled and the preparation for bonding the liquid crystal panel 106 to the window glass 102 is completed.

(Bonding process)
Next, a procedure for bonding the window glass 102 and the liquid crystal panel 106 will be described with reference to FIG. In FIG. 15, the illustration of the roller support portion 18 is omitted to avoid complexity of the drawing.

15 (A) to 15 (C) illustrate in detail the procedure for mounting the roller 16 (pressing member) and the pressing portion 22 on the rail 56 of the roller support portion 18. As shown in FIG. 15A, the roller 16 and the pressing portion 22 are mounted from above the rail 56 to the upper end of the rail 56 (position indicated by a two-dot chain line in FIG. 7) as shown in FIG.

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.

In the movement of the roller 16 from the position shown in FIG. 15B to the position shown in FIG. 15C (the position shown by the solid line in FIG. 7), 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 in the entire flexible plate-like member 12.

Next, as shown in FIGS. 15C to 15E, the roller 16 is pressed from the back surface of the plate-like member 12 toward the window glass 102 via the roller operation bar 60 to apply a bonding load. 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 plate-like member 12. Accordingly, the curvature of the 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 is changed from the upper end to the lower end. It is sequentially pasted to the window glass 102. Due to the action of the spring 24D and the roller 16, the bonding surface of the liquid crystal panel 106 is bonded to the window glass 102 without involving bubbles.

As shown in FIG. 15 (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 plate-like member 12 is released.

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.

After the pasting operation is finished, the pasting device 10 is removed from the window glass 102.
In the removal operation, first, the pressing portion 22 is removed from the upper end of 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 digital signage (image display apparatus) 100 which is a laminated body in which the liquid crystal panel 106 is bonded to the window glass 102 can be assembled.
In the above-described embodiment, the case where the first substrate is the window glass 102 and the second substrate is the liquid crystal panel has been described. In the method for manufacturing a laminate of the present invention, the first substrate may be the window glass 102, the second substrate may be the transparent surface material 110, and the first substrate is bonded to the window glass 102. In the structured body, the second substrate may be the liquid crystal panel 106. In any case, the laminate formed by laminating the first substrate and the second substrate is manufactured through the above-described steps of the present invention.

(Reinforcing member mounting process)
In the manufacturing method of the laminated body of this invention, it has the reinforcement process which attaches a reinforcement member to the bonding area of the liquid crystal panel 106 (2nd board | substrate) in the non-bonding surface of the window glass 102 (1st board | substrate). May be. By providing the reinforcing member on the non-bonding surface, warping of the window glass 102 can be reduced in the bonding step, and the bonding surface of the window glass 102 can be maintained flat. As a result, entrainment of bubbles on the bonding surface can be reduced.

What is necessary is just to perform the reinforcement process which attaches a reinforcement member to the non-bonding surface of the window glass 102 before a bonding process.
What is necessary is just to perform the operation | work which removes a reinforcement member after a bonding process.
In the above-described embodiment, the case where the first substrate is the window glass 102 and the image display panel is a liquid crystal panel has been described. In the method for manufacturing an image display device, a first substrate is configured by bonding a transparent surface material 110 (for example, a glass plate) to a window glass 102 with a first adhesive layer as shown in FIG. It may be a structure.

[Features of Embodiment: Position Adjustment Step]
According to the laminate manufacturing method of the embodiment, in the position adjusting step, the hanger unit 14 is detachably supported on the window glass 102, and the plate member 12 is detachably attached to the hanger unit 14, and then the horizontal The position of the plate member 12 in the horizontal direction is adjusted by the direction position adjustment unit 44, the position of the plate member 12 in the vertical direction is adjusted by the vertical position adjustment unit 46, and the bonding position of the liquid crystal panel 106 to the window glass 102 To the desired position.

That is, the feature of the embodiment is that the hanger unit 14 supported by the window glass 102 is used, and the bonding position of the liquid crystal panel 106 to the window glass 102 is adjusted. When adjusting the bonding position, the plate-like member 12 and the liquid crystal panel 106 are supported by the window glass 102 via the hanger unit 14, and therefore bear the mass of the plate-like member 12 and the liquid crystal panel 106. The bonding position can be easily adjusted simply by operating the horizontal position adjusting unit 44 and the vertical position adjusting unit 46 of the hanger unit 14. Therefore, according to the embodiment, the positioning operation of the liquid crystal panel 106 with respect to the window glass 102 can be easily performed.

In the embodiment described above, the substrate bonding apparatus and the laminate manufacturing method of the present invention are performed by applying a liquid crystal panel (that is, the second substrate) to a building window glass (that is, the first substrate) on-site. However, the present invention is not limited to this, and the first substrate can be applied to a substrate that is inclined with respect to a vertical direction with respect to a horizontal plane or a substrate that is placed flat.

According to the bonding apparatus and the laminate manufacturing method of the present invention, the positioning operation of the second substrate relative to the first substrate can be easily performed, and the second substrate is placed at a predetermined position of the first substrate. For example, it is useful for assembling a digital signage (image display device) by bonding an image display panel to a window glass of a building via an adhesive layer.
The entire contents of the specification, claims, drawings, and abstract of Japanese Patent Application No. 2014-175228 filed on August 29, 2014 are incorporated herein as the disclosure of the present invention. .

DESCRIPTION OF SYMBOLS 10 ... Pasting apparatus, 12 ... Plate-shaped member, 12A ... Ring, 14 ... Hanger unit (position adjustment member), 15 ... Reinforcement member, 15A ... Surface plate, 15B ... Rigid plate, 15C ... Hand adsorption board, 15D ... Holding Frame, 15E ... abutting means, 15F ... claw part, 15G ... holding arm, 16 ... roller (pressing member), 18 ... roller support part, 20 ... bonding load adjusting mechanism part, 22 ... pressing part, 24 ... curved Member, 24A ... Plate, 24B ... Pusher, 24C ... Elastic body, 24D ... Spring, 24E ... Weight member, 24F ... Towing rope, 24G ... Pulley, 26 ... 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 plate, 50 ... Turn buckle, 50A ... Hook, 52 ... Adhesive layer, 54 rail frame, 56 ... Rail, 56A ... Inner wall surface, 56B ... Roller guide surface, 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, 100 ... Image display device, 102 ... Window glass (first substrate), 106 ... Liquid crystal panel (second Substrate), 110... Glass plate (transparent surface material), 112... Light-shielding portion, 114... First adhesive layer, 116.

Claims

In the laminating apparatus for laminating the second substrate via the adhesive layer to the first substrate that is inclined from the vertical direction or the vertical direction with respect to the horizontal plane,
A plate-like member for holding the second substrate;
A position adjusting member that is detachably attached to the first substrate and is capable of adjusting an attachment position of the plate-like member with respect to the first substrate;
A pressing member that presses the plate-like member to sequentially bond the second substrate to the first substrate;
The board | substrate bonding apparatus characterized by the above-mentioned.
The position adjusting member includes a vertical position adjusting unit and a horizontal position adjusting unit, and the vertical position adjusting unit vertically adjusts the plate-like member with respect to the first substrate arranged in the vertical direction. The board | substrate bonding apparatus of Claim 1 by which a direction position is adjusted and the horizontal direction position of the said plate-shaped member is adjusted by the said horizontal direction position adjustment part.
The substrate bonding apparatus according to claim 1 or 2, wherein the first substrate is a window glass, and the second substrate is an image display panel.
A holding step of detachably holding the second substrate on the plate member;
A position adjustment member is detachably attached to the first substrate, and the plate member is detachably attached to the position adjustment member, and the attachment position of the plate member to the first substrate by the position adjustment member A position adjusting process for adjusting
An arranging step of arranging the front second substrate apart from the first substrate;
A bonding step of sequentially bonding the second substrate to the first substrate via the adhesive layer by pressing the plate-like member;
A method for producing a laminate, comprising:
The position adjusting member includes a vertical position adjusting unit and a horizontal position adjusting unit,
In the position adjusting step, the vertical position of the plate-like member is adjusted by the vertical position adjusting unit with respect to the first substrate arranged in the vertical direction, and the plate is adjusted by the horizontal position adjusting unit. The manufacturing method of the laminated body of Claim 4 which adjusts the horizontal direction position of a member.
The method for manufacturing a laminate according to claim 4 or 5, wherein the first substrate is provided in a vertical direction or inclined from a vertical direction with respect to a horizontal plane.
The plate-like member is provided with a member for bending the plate-like member and the second substrate, and the second substrate is bent convexly with respect to the first substrate by bending the plate-like member in the arranging step. The method for producing a laminate according to any one of claims 4 to 6.
The method for manufacturing a laminate according to any one of claims 4 to 7, wherein the first substrate is a window glass, and the second substrate is an image display panel.
The first substrate is a window glass, the second substrate is an image display panel, and the window glass, the image display panel, and the image display panel are manufactured by the method for manufacturing a laminate according to any one of claims 4 to 8. A method for manufacturing an image display device, wherein: