JP6562377B2 - Substrate pasting device and pasting method - Google Patents

Description

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

  In recent years, by attaching a liquid crystal panel (second substrate: image display panel) to a window glass (first substrate) of a building via an adhesive layer, digital signage (image display device) is installed on site. It is being considered to assemble. 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 (pressing force) 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.

JP2013-80046A

  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.

  In addition, in the case of so-called on-site bonding, where the liquid crystal panel is bonded to the window glass, the window glass is warped by the pressing force of the rotating roller, so that the liquid crystal panel can be stably bonded without entraining air bubbles in the window glass. It was difficult to combine.

  This invention is made | formed in view of such a situation, and it is the field (building) on the bonding surface of the 1st board | substrate installed in the direction which inclined from the perpendicular direction or the perpendicular direction with respect to the floor surface. It is an object to provide a substrate bonding apparatus, a bonding method, and an image display device that can be bonded without involving air bubbles in so-called on-site bonding for bonding a second substrate.

Laminating apparatus of the substrate of one embodiment of the present invention, the substrate to be bonded a second substrate bonded mating face of the first substrate disposed in a vertical way direction with respect to the floor surface via the adhesive layer bonded In the combination apparatus, a reinforcing member that is detachably attached to the non-bonding surface of the first substrate, reinforces the first substrate, and a flat plate-like member that detachably holds the second substrate; , A support means for detachably supporting the plate member on the bonding surface of the first substrate, and the second substrate from the plate member side of the non-bonding surface of the second substrate. Pressing means for pressing the first substrate onto the first substrate and sequentially bonding the second substrate to the first substrate.

One aspect lamination method of a substrate of the present invention, the substrate to be bonded a second substrate bonded mating face of the first substrate disposed in a vertical way direction with respect to the floor surface via the adhesive layer bonded In the bonding method, a reinforcing step of reinforcing the first substrate by attaching a reinforcing member to the non-bonding surface of the first substrate, and attaching and detaching the non-bonding surface of the second substrate to a flat plate-shaped member A holding step for freely holding, a supporting step for detachably supporting the plate-like member on the bonding surface of the first substrate by a supporting member, and the plate-like member on the non-bonding surface of the second substrate A bonding step of pressing the second substrate against the bonding surface of the first substrate from the side, and sequentially bonding the second substrate to the bonding surface of the first substrate. A method for bonding substrates, which is characterized by the above.

According to the present invention, in a state where the reinforcing member is attached to the non-bonding surface of the first substrate and the first substrate is reinforced, the second substrate is pressed against the bonding surface of the first substrate, and the second substrate Since the substrates are sequentially bonded to the bonding surface of the first substrate, it is possible to prevent the first substrate from being deformed by the pressing force at the time of bonding. Thereby, a 1st board | substrate and a 2nd board | substrate can be stuck and bonded. Accordingly, the bonded mating face of the first substrate disposed in a vertical way direction with respect to the floor surface, laminating a second substrate on site (buildings), the so-called field bonding, to involve bubbles Can be bonded without any problem.

  As described above, according to the substrate bonding apparatus and the bonding method of the present invention, on the bonding surface of the first substrate installed in the vertical direction or the direction inclined from the vertical direction with respect to the floor surface, In so-called on-site bonding, in which the second substrate is bonded at (building), it is possible to bond without involving bubbles. Therefore, it is possible to provide an image display device with good image quality that is free of bubbles.

  The bonding apparatus and the bonding method of the present invention are particularly effective in, for example, on-site bonding in which an image display panel for digital signage is bonded to a window glass of a building, for example.

Vertical section of image display device Enlarged sectional view of part A in FIG. (A) is a front view of the bonding apparatus of the first embodiment, (B) is a side view of the bonding apparatus. Illustration of plate-like member Explanatory drawing of the 1st example of a reinforcement member Side view of the second embodiment of the reinforcing member The perspective view of the 2nd example of a reinforcement member Side view of third example of reinforcing member The perspective view of the 3rd example of a reinforcement member Explanatory drawing of bonding load distribution by flexible roller Explanatory drawing of bending member 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 of the bonding process in on-site bonding (A) is a front view of the bonding apparatus of 2nd Embodiment, (B) is a side view of a bonding apparatus. Arrow view seen from line C-C 'in FIG. Side view of the main part showing the state of bonding with a flexible roller

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a substrate bonding apparatus, a bonding method, and an image display apparatus according to the present invention will be described with reference to the accompanying drawings.

  First, the image display apparatus bonded and assembled by the board | substrate bonding apparatus and the bonding method of embodiment is demonstrated.

  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 surface material 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 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.

  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.

  What is necessary is just to determine the shape of a transparent surface material according to the planar shape of the liquid crystal panel 106 which is bonding object, and is a rectangle as an example. In terms of mechanical strength, transparency, etc., the thickness of the transparent face material is preferably about 0.2 to 2.0 mm if it is a glass plate. In order not to make the observer strongly feel the depth of the display image, the thickness of the transparent surface material is more preferably about 0.2 to 1.1 mm. If it is a resin plate, the thickness of the transparent face material is preferably about 0.1 to 1.0 mm.

(Shading part)
It is preferable that the transparent face material has a light shielding portion 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. When the transparent surface material is a glass plate, it is preferable that the light shielding part is formed by using a printing method such as ceramic printing including a black pigment because of high light shielding properties. The light shielding portion 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, and 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. 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.

  As a 2nd board | substrate, image display panels, such as a liquid crystal display panel (LCD: Liquid Crystal Display), a plasma display panel (PDP: Plasma Display Panel), an organic EL display panel (OELD: Organic Electro Luminescence Display), are mentioned, for example. be able to.

  As shown in FIG. 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 including a thin film transistor and a color filter substrate including 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 on 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. 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.

<< Boarding Device and Pasting Method for Substrate of the Present Invention >>
Next, the board | substrate bonding apparatus and bonding method of this invention are demonstrated.

  The present invention relates to a substrate bonding apparatus and a method for bonding a second substrate to a bonding surface of a first substrate installed in a direction perpendicular to the floor surface or inclined from the vertical direction through an adhesive layer. It is a good method. Although the first substrate and the second substrate are not particularly limited, it is preferably applied to the above-described substrate.

  In embodiment, based on FIGS. 1-2, the liquid crystal panel 106 which is a 2nd board | substrate is affixed on the bonding surface of the existing window glass 102 fixed to the building which is a 1st board | substrate through the adhesion layer. In addition, an example of manufacturing digital signage having the window glass 102, the first adhesive layer 114, the glass plate 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 glass plate 110 is demonstrated.

[Bonding device of the first embodiment]
The bonding apparatus 10 of 1st Embodiment shows the basic composition of an apparatus.

  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).

  As shown in FIGS. 3A and 3B, the bonding apparatus 10 includes a reinforcing member 15 that reinforces the first substrate and a roller 16 that is a pressing unit. In the bonding apparatus 10 of 1st Embodiment, it demonstrates as a form provided with the hanger unit 14 which supports the plate-shaped member 12 and the plate-shaped member 12 which adsorb | suck the 2nd board | substrate which are arbitrary structures.

<Plate-like member 12>
The plate-like member 12 is a member that adsorbs the liquid crystal panel 106. When the plate-like member 12 is provided, since the bending means and the pressing means are not connected or pressed to the liquid crystal panel 106, 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 (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.

  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 blocked by the liquid crystal panel 106. To do. 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 is preferably conductive. Generation of static electricity can be suppressed when peeling a release sheet attached to the surface of the adhesive layer described later, or when removing the plate-like member 12 and the liquid crystal panel 106 after bonding.

  Moreover, the flexible plate 26 needs moderate flexibility, and for example, a vinyl chloride resin plate having a thickness of 2 mm or more and 3 mm or less is preferable. 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>
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 the second substrate being displaced from 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-like member 12 along the surface of the window glass 102 installed in the vertical direction, and the window glass. A vertical position adjusting unit 46 that adjusts the vertical position and inclination of the plate-like member 12 is provided along the surface 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)
When the hanger unit 14 is used, 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 44A is oriented in 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, an operation of moving the rail-shaped member 44A in the horizontal direction and an operation of individually adjusting the vertical lengths of the pair of turnbuckles 50 and 50 are performed. 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. 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.

  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.

<Reinforcing member 15>
As illustrated in FIG. 3B, the reinforcing member 15 is a member that suppresses deformation of the window glass 102 by removably attaching to the non-bonding surface of the window glass 102 and reinforcing the window glass 102.

  The reinforcing member 15 is provided with a plurality of frames 15B having rigidity against a bonding load applied to the window glass 102, and a plurality of frames 15B, and a hand suction board (not attached to the non-bonding surface of the window glass 102). Adsorption part) 15C.

  As the material of the frame 15B, a metal such as an aluminum alloy, a reinforced plastic such as ceramics, or FRP can be used. 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.

  By using the hand suction board 15C, the frame 15B is securely held on the non-bonding surface of the window glass 102 installed in the vertical direction on the building, and the frame 15B is dropped by gravity or the holding position is shifted. Can be prevented. As the hand suction board 15C, for example, a plurality of ones having an allowable load of 25 kgf / 1 manufactured by Shinwa Measurement Co., Ltd. described in the hanger unit 14 can be used.

  In addition, although shown in the example using the hand suction board 15C, you may connect a suction pad to a vacuum source.

  5A to 5C show an example of the three aspects of the reinforcing member 15 and the non-bonding surface position of the window glass 102 to which the reinforcing member 15 is attached.

  The reinforcing member 15 of the first embodiment in FIG. 5A is a long thin plate-like frame 15B provided with four hand suction boards 15C, and the length L of the frame 15B is a rectangular liquid crystal. It is formed longer than the width W of the panel 106. 5A shows that two hand suction boards 15C are positioned on the non-bonding surface of the window glass 102 at positions corresponding to the four corner portions (corner portions) of the liquid crystal panel 106. The reinforcing members 15 are arranged in parallel. In FIG. 5A, the two reinforcing members 15 are arranged in the horizontal direction, but they may be arranged in the vertical direction (see FIG. 3B). Further, although four hand suction plates 15C are provided on one reinforcing member 15, it is preferable that the number is three or more in view of the warp correction action of the window glass 102.

  As described above, the frame 15B having a flat surface 15A having a flatness higher than that of the window glass 102 and having rigidity against the bonding load applied to the window glass 102 is formed by the plurality of hand suction plates 15C. The window glass 102 can be reinforced by attaching to a non-bonding surface.

  Therefore, due to the warp of the window glass 102, the problem of the pasting that the window glass 102 and the liquid crystal panel 106 are prevented from being closely bonded and air bubbles are likely to be trapped is adsorbed to the frame 15B by a plurality of hands. This can be solved with a very simple configuration in which the reinforcing member 15 provided with the panel 15C is attached to the non-bonding surface of the window glass 102.

  And since the reinforcement member 15 is supported by the non-bonding surface of the window glass 102, the special support apparatus for maintaining the reinforcement member 15 in the air becomes unnecessary.

  The reinforcing member 15 in FIG. 5B is configured in a ladder shape by two parallel horizontal frames 15D and four parallel vertical frames 15E. Hand suction boards 15C (eight in total) are provided at the intersections of the horizontal frame 15D and the vertical frame 15E of the frame 15B. In addition, although the reinforcement member 15 of FIG.5 (B) is a form which uses a ladder with the attitude | position of a horizontal direction, it can also be used also with the attitude | position of a vertical direction. Further, the number of the vertical frames 15E is not limited to four.

  The length L of the reinforcing member 15 is formed longer than the width W of the liquid crystal panel 106, and the width D of the reinforcing member 15 is formed substantially equal to the width W of the liquid crystal panel. In the reinforcing member 15 of FIG. 5B, the four hand suction boards 15 </ b> C are located at the non-bonding positions of the window glass 102 corresponding to the four corner portions (corner portions) of the rectangular liquid crystal panel 106. preferable.

  Thereby, also about the reinforcing member 15 of FIG.5 (B), the effect similar to the reinforcing member 15 of FIG.5 (A) demonstrated above can be acquired. Furthermore, by using the frame 15B as a ladder-like frame, it is possible to obtain a rigidity that resists the bonding load more than the reinforcing member 15 in FIG.

  The reinforcing member 15 in FIG. 5C is configured in a lattice shape by three parallel horizontal frames 15D and four parallel vertical frames 15E. Hand suction boards 15C (12 in total) are provided at intersections of the horizontal frame 15D and the vertical frame 15E of the frame 15B. In addition, although the reinforcing member 15 of FIG.5 (C) is a form which uses a longitudinal direction for a horizontal direction, it can also be used with the form for which the longitudinal direction was directed to the perpendicular direction. Further, the number of horizontal frames 15D and vertical frames 15E is not limited to three and four.

  The length L of the reinforcing member 15 is formed longer than the width W of the liquid crystal panel 106, and the width D of the reinforcing member 15 is formed substantially equal to the width W of the liquid crystal panel. In the reinforcing member 15 of FIG. 5C, it is preferable that the hand suction plate 15 </ b> C is located at the center position between the four corner portions (corner portions) of the rectangular liquid crystal panel 106 and the corner portions in the vertical direction.

  Thereby, also about the reinforcing member 15 of FIG.5 (C), the effect similar to the reinforcing member 15 of FIG.5 (A) demonstrated above can be acquired. Furthermore, by making the frame 15B into a lattice-like frame and twelve hand suction boards, it is possible to obtain rigidity that resists the bonding load more than the reinforcing member 15 in FIG.

  6 and 7 show a second embodiment of the reinforcing member 15, and is constituted by a surface plate 15F (adsorption surface plate) having an adsorption structure. The adsorption surface plate 15F means that the surface plate itself has a structure for adsorption. For the adsorption, vacuum adsorption, adsorption by static electricity, adhesion by adhesion, and the like can be used, but vacuum adsorption is preferable because a large adsorption force can be obtained. As the vacuum suction type suction surface plate 15F, for example, a plurality of suction holes or suction grooves are formed on 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.

  FIGS. 8 and 9 show a third embodiment of the reinforcing member 15. The surface plate 15 </ b> F, the holding frame 15 </ b> G that holds the surface plate 15 </ b> F, and the holding frame 15 </ b> G are detachable from the non-bonding surface of the window glass 102. It comprises a hand suction board (suction part) 15C to be attached, and contact means 15H for bringing the surface plate 15F held by the holding frame 15G into contact with the non-bonding surface of the window glass 102.

  As the material of the surface plate 15F, the same material as that of the adsorption surface plate 15F can be used.

  As shown in FIG. 9, the holding frame 15G is a frame in which three parallel holding arms 15K having claw portions 15J that hold the surface plate 15F on the upper and lower sides are connected by two parallel connecting arms 15M. Configured to structure. The holding frame 15G may have any structure as long as the surface plate 15F can be held in contact with the window glass 102. From the viewpoint of weight reduction, the holding frame 15G is preferably a frame structure having a plurality of openings. Further, as the material of the holding frame 15G, reinforced plastics such as ceramics and FRP that can be easily reduced in weight are particularly preferable, and in the case of a metal, a lightweight metal such as aluminum is preferable.

  The hand suction board 15C is provided at each of the upper end and the lower end of the holding arm 15K, and a total of six hand suction boards 15C are provided. As the hand suction disk 15C used here, one having an allowable load of 25 kgf / 1 manufactured by Shinwa Measurement Co., Ltd. can be preferably used. Instead of the hand suction board 15C, the suction pad may be connected to a vacuum source.

  The contact means 15H is composed of a female screw drilled so as to penetrate the three holding arms 15K at equal intervals, and a male screw screwed into the female screw, and the tip of the male screw protrudes from the female screw so that the surface plate It is comprised so that the back surface of 15F may be pressed.

  8 and 9, first, the holding frame 15G holding the surface plate 15F is attached to the non-bonding surface of the window glass 102 by the hand suction plate 15C. Thereby, the surface plate 15F and the window glass 102 oppose. Next, the plurality of male screws are rotated using torque wrench (not shown) until the torque values are equal to each other. Thereby, the entire surface of the surface plate 15F 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.

<Pressing means: Roller 16>
The bonding apparatus 10 of this embodiment is provided with the roller 16 as a press means in bonding with 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. Moreover, the bonding apparatus 10 of this embodiment has a guide means, The reaction force from the window glass 102 produced at the time of bonding is transmitted to the roller 16 through the guide means.

  FIG. 10 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. 10 is an adhesion layer. FIG. 10 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. In FIG. 10, 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 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).

  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 stainless or aluminum cylindrical tube having an outer diameter of 10 to 30 mm (for example, 20 mm) and a 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.

  In addition, the adhesive layer 52 between the window glass 102 and the liquid crystal panel 106 has a thicker adhesive layer 52, a larger elastic modulus of the adhesive layer 52, and the adhesive layer 52 is more easily elastically deformed by a bonding load. Air bubbles are difficult to enter. For this reason, the thickness of the adhesion 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.

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.

<Curving means 24>
Since the bonding apparatus 10 of this embodiment is provided with a pusher (FIG. 11A) as the bending means 24, the liquid crystal panel 106 and the plate member 12 are retracted from the window glass 102 from the upper end to the lower end. The liquid crystal panel 106 is curved convexly with respect to the window glass 102.

  Thereby, the location which the 2nd board | substrate does not press and the 1st board | substrate do not contact, As a result, the entrainment of the bubble to the bonding surface can be prevented.

(Form of bending means 24)
Two types of bending means 24 are shown as in the explanatory view showing the bonding situation shown in FIGS. 11 (A) and 11 (B).

  The bending means 24 is detachably provided at at least two places in the width direction of the plate-like member 12 at the lower end portion of the plate-like member 12. In FIG. 3A, bending means 24 are provided at four locations.

  As shown in FIG. 11A, the bending means 24 (pusher) used in the present embodiment pushes up the lower end portion of the plate-like member 12 in the direction of retreating from the window glass 102 by the urging force of the spring 24D. It is. In the bending means 24 (FIG. 11A), a plate 24A is detachably fixed to the lower end portion of the plate-like member 12, and a support bar 24B is detachably attached to an opening (not shown) of the plate 24A. ing. An elastic body 24C that comes into contact with the window glass 102 is attached to the tip of the support bar 24B. The spring 24D is interposed between the plate 24A and the elastic body 24C, and the support bar 24B is inserted into the spring 24D. ing.

  FIG. 11B shows another form of the bending means 24. The bending means 24 of FIG. 11 (B) 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. This bending means 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.

  According to these bending means 24, the flexible plate-like member 12 can be bent 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. Further, even when the plate member 12 is pressed toward the window glass 102 by the roller 16, the bending member 24 causes the plate member 12 on the downstream side of the position during bonding by the roller 16 to be in the pasting direction. The curve is kept upward along the line. 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 plate-like 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. 10 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 plate-like member 12, the hanger unit 14, the reinforcing member 15, the roller 16, and the bending means 24 are configured as independent units, 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.

[Bonding method]
Next, when bonding on-site using the bonding apparatus 10 of 1st Embodiment comprised as mentioned above, the bonding apparatus 10 is assembled on the spot, and the window glass 102 by the assembled bonding apparatus 10 is assembled. A bonding method for bonding the liquid crystal panel 106 to the non-bonding surface will be described.

  In addition, the window glass 102 shall be installed in the perpendicular direction, and the adhesive layer 52 shall be provided in the liquid crystal panel 106, and the liquid crystal panel 106 has a peeling sheet (not shown) on the surface of the adhesive layer 52. ) Shall be carried into the pasting site in a pasted form.

<Assembly procedure of bonding apparatus 10>
First, the assembly procedure of the bonding apparatus 10 is demonstrated according to FIGS.

  As shown in the front view of FIG. 12A and the side view of FIG. 12B, the hand suction board 48 of the hanger unit 14 is rail-shaped on the bonding surface of the window glass 102 installed in the window frame of the building. The member 44A is adsorbed so as to be substantially horizontal.

(Holding step with plate-like member 12)
Next, as shown in FIG. 13, the non-bonding surface of the liquid crystal panel 106 is adsorbed and held on the plate-like member 12 in a flat state on the floor surface of the building to be bonded on-site. Thereafter, the bending means 24 is attached to the plate-like member 12, and the release sheet is peeled from the liquid crystal panel 106.

  At this time, since the adhesive layer 52 of the liquid crystal panel 106 is exposed, when the plate-like member 12 holding the liquid crystal panel 106 is held and adjusted with respect to the window glass 102, the adhesive layer 52 is attached to the window glass 102. It is necessary to prevent accidental contact.

  For this purpose, the plate-like member 12 may be suspended at a position where the adhesive layer 52 is separated from the window glass 102. At the time of bonding, the lower end of the turnbuckle moves so as to approach the window glass 102, and the adhesive layer 52 and the window glass 102 are in close contact with each other.

  Furthermore, in order to prevent such erroneous contact, as shown in FIGS. 13B and 14A, a strip-like sponge member 84 having a thickness larger than the thickness of the liquid crystal panel 106 may be used. The sponge member 84 is detachably attached to the plate member 12 so as to surround the liquid crystal panel 106.

  Note that the sponge member 84 is not necessarily provided so as to surround the liquid crystal panel 106. The sponge member 84 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 in the position adjustment. Accordingly, as shown in FIG. 14A, the erroneous contact can be prevented during the position adjustment.

  Further, as shown in FIG. 14B, 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.

  Further, as shown in FIGS. 13B and 14, a dummy sheet 86 having the same thickness as the liquid crystal panel 106 is provided on the surface of the plate-like member 12 on the upstream side of the bonding start position on the window glass 102 side. It is preferable to stick.

  The function of the dummy sheet 86 will be described. The starting position where the roller 16 presses the plate-like member 12 in the bonding step is located further above the upper end position of the liquid crystal panel 106 held by the plate-like member 12. Therefore, the bonding load from the roller 16 is also applied to the plate-like member 12 upstream of the bonding start position. Here, as shown in FIG. 14B, when the dummy sheet 86 is interposed, since the difference in rigidity of the plate-like member 12 can be eliminated at the bonding start position, the bonding at the start of the bonding is smoothly performed. be able to.

(Supporting process with hanger unit 14)
Next, as shown in FIGS. 15A and 15B, the ring 12 </ b> A of the plate-like member 12 that holds the liquid crystal panel 106 by suction is removably engaged with the hooks 50 </ b> A of the pair of turnbuckles 50 of the hanger unit 14. The plate member 12 is suspended and supported on the window glass 102 via the hanger unit 14 together with the liquid crystal panel 106.

  Then, the position of the liquid crystal panel 106 is adjusted to the bonding position of the window glass 102 by moving the plate member 12 in the horizontal direction and the vertical direction by the hanger unit 14.

(Bending step by the bending means 24)
The plate member 12 is bent by the bending means 24. In the supporting step, it is preferable that the bonding position of the liquid crystal panel 106 is adjusted in a state where the plate-like member 12 is curved.

(Attaching process of reinforcing member 15)
Next, as shown in FIGS. 16A and 16B, the reinforcing member 15 is attached to the bonding area of the liquid crystal panel 106 on the non-bonding surface of the window glass 102. That is, a frame 15B having a flat surface 15A having a flatness higher than that of the window glass 102 and having rigidity against a bonding load applied to the window glass 102 is attached to the window glass 102 by a plurality of hand suction plates 15C. Attach to the mating surface.

  16 (A) and 16 (B) show an example in which the two reinforcing members 15 shown in FIG. 5 (A) are arranged in parallel in the vertical direction. FIG. 5 (B) and FIG. 5 (C) ), FIG. 7, FIG. 7, FIG. 8, and FIG. 9 may be attached. In this case, either the process of suspending the plate-like member 12 holding the liquid crystal panel 106 on the bonding surface of the window glass 102 or the reinforcement process of attaching the reinforcing member 15 to the non-bonding surface of the window glass 102 is performed first. Or may be performed at the same time.

  Next, as shown in FIG. 17, the plate member 12 is pressed against the window glass 102 by the roller 16 against the bending of the plate member 12 by the bending means 24. And the roller 16 is rolled from the upper end of the plate-shaped member 12 toward a lower end, giving the bonding load, and the window glass 102 and the liquid crystal panel 106 are bonded in order.

  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.

  The bonding operation of the liquid crystal panel 106 to the window glass 102 is completed by the above procedure. At this time, the suction holding of the liquid crystal panel 106 by the plate-like member 12 is released.

  By the above procedure, the bonding operation of the liquid crystal panel 106 to the window glass 102 is completed. After the pasting operation is finished, the pasting device 10 is removed from the window glass 102.

  In the removal operation, first, the reinforcing member 15 is removed from the window glass 102. Next, 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.

[Features of the first embodiment: bonding step]
According to the laminating apparatus and the laminating method of one aspect of the present invention, the liquid crystal panel 106 is sucked and held on the plate-like member 12, and the plate-like member 12 can be supported by being hung on the window glass 102 by the hanger unit 14. . Thereby, the surface of the liquid crystal panel 106 can be opposingly arranged with respect to the bonding surface of the window glass 102 installed in the perpendicular direction in the building.

  Moreover, the reinforcing member 15 which increases the rigidity of the window glass 102 was detachably attached to the non-bonding surface of the window glass 102. Thereby, since the rigidity of the window glass 102 can be drastically increased, even if the window glass 102 is pressed by a bonding load, the window glass 102 can be prevented from being warped. Therefore, the window glass 102 and the liquid crystal panel 106 can be adhered and bonded even in the case of so-called on-site bonding, in which the liquid crystal panel 106 is bonded to the window glass 102 installed in the vertical direction on the window frame of the building. . Thereby, it is possible to prevent bubbles from being caught in the adhesive layer 52 between the window glass 102 and the liquid crystal panel 106.

  Further, the reinforcing member 15 according to the first aspect is provided with a plurality of hand suction plates 15C on the flat surface 15A of the frame 15B so as to suck the window glass 102, so that even if the window glass itself is warped, the warp is warped. Can be corrected. In particular, since the reinforcing member 15 according to the second aspect makes the surface plate 15F abut on the non-bonding surface of the window glass 102, even when the window glass itself is warped, the warp can be corrected.

  Moreover, since the reinforcing member 15 is supported by the window glass 102, a special support device for supporting the reinforcing member 15 is not required.

  Further, the bending means 24 prevents the portion of the liquid crystal panel 106 that is not yet bonded to the downstream side of the liquid crystal panel 106 being bonded by the roller 16 from being bonded to the window glass 102 first. Sometimes it is possible to prevent air bubbles from being involved.

[Bonding device of the second embodiment]
The laminating device 10 of the second embodiment is a laminating load that adjusts the laminating load in the axial direction of the roller support 18 and the roller 16 to the laminating device 10 of the first embodiment described above. The pressing unit 22 having the adjusting mechanism unit 20 is further provided in the pressing means 21.

<Roller support 18>
As shown in FIGS. 18A and 18B, the roller support portion 18 is a step of detachably supporting the pressing portion 22 having the roller 16 and the bonding load adjusting mechanism portion 20 on the window glass 102. It is a member used.

  In FIG. 18A, the reinforcing member 15 is not drawn in order to make the drawing easier to see.

  The roller support portion 18 includes a rail frame 54 and four hand suction boards 48 that suck and hold the rail frame 54 on the window glass 102. The rail frame 54 is composed of 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 connecting the rails 56, 56. The

  As the material of the rail frame 54, a rigid material such as a metal such as steel, ceramics, a reinforced plastic such as FRP can be suitably used. Note that the number of hand suction boards 48 may be five or more.

  FIG. 19 is an arrow view seen from the line C-C ′ in FIG. 18A, and is an explanatory diagram showing a bonding state by the roller 16. FIG. 20 is a side view of an essential part showing a bonding state by the roller 16.

<Pressing part 22>
The bonding apparatus 10 of this embodiment is provided with the press part 22, as shown to FIG. 19, FIG. By providing the pressing part 22, a uniform bonding load can be applied to the second substrate. As a result, bubbles can be prevented from entering the bonding surface.

  In the present embodiment, the pressing portion 22 is provided at both ends of a roller operating bar 60 and a roller operating bar 60 of square material arranged parallel to the axial direction of the roller 16, and is slidable on a pair of opposing rails 56 and 56. It is comprised by the bonding part 62 and the bonding load adjustment mechanism part 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 the orthogonal direction.

  A wheel 64 shown in FIG. 19 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 flexible roller support portion 18.

  It is preferable that the wheel unit 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.

  FIG. 19 is an arrow view seen from the line C-C ′ in FIG. 18A, and is an explanatory diagram showing a bonding state by the roller 16. FIG. 20 is a side view of an essential part showing a bonding state by the roller 16.

  As shown in FIG. 20, an inclined tapered slope 70 is provided at the upper end (right end in FIG. 20) 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. 20 using the slope 70.

<Bonding load adjustment mechanism 20>
In the bonding apparatus 10 of the present embodiment, as illustrated in FIG. 19, the bonding load adjusting mechanism unit 20 has five axial positions of the roller 16, that is, an axial center position, both end positions, and an intermediate position between the center position and both end positions. Provided. Since the bonding apparatus 10 has the bonding load adjustment mechanism part 20, the load concerning the roller 16 can be adjusted.

  In the present embodiment, the bonding load adjustment 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 a 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. 19, the roller 16 is prevented from dropping from 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. 20, 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. 20, 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.

  And in the bonding method by 2nd Embodiment of the bonding apparatus 10, the following roller support process and bonding process are performed after the attachment process of the reinforcement member 15 in 1st Embodiment.

(Roller support process)
As shown in FIGS. 18A and 18B, the roller support portion 18 is mounted on the window glass 102 so as to surround the 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.

  In this case, in the bonding apparatus 10 of the first embodiment, the four hand suction boards 15C of the reinforcing member 15 are arranged at the non-bonding positions of the window glass 102 corresponding to the four corner portions of the liquid crystal panel 106. Was preferred. However, when providing the roller support part 18 like 2nd Embodiment of the bonding apparatus 10, it is preferable to do as follows.

  That is, the four hand suction boards 48 provided on the rail frame 54 of the roller support 18 and the four hand suction boards 15C provided on the rigid plate of the reinforcing member are opposed to each other with the window glass 102 interposed therebetween. It is preferable to have a relationship. Thereby, since the window glass 102 is sandwiched between the rail frame 54 and the rigid plate made of a rigid material, the rigidity of the window glass 102 can be further enhanced.

  Next, as shown in FIGS. 18A and 18B, 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 and the preparation for bonding the liquid crystal panel 106 to the window glass 102 is completed.

  Then, the roller 16 is rolled from the upper end to the lower end of the plate-like member 12 along the rail 56 of the roller support portion 18, and the liquid crystal panel 106 is bonded to the window glass 102.

  The bonding operation of the liquid crystal panel 106 to the window glass 102 is completed by the above procedure.

[Features of Second Embodiment: Bonding Step]
According to the bonding apparatus 10 of the second embodiment, since the roller support portion 18 and the pressing portion 22 including the bonding load adjustment mechanism portion 20 are further provided, the roller 16 can smoothly roll. And the dispersion | variation in the bonding load from the bonding start to the end of bonding can be eliminated.

  Further, as described above, since the window glass 102 is sandwiched between the rail frame 54 formed of a rigid material and the rigid plate via the hand suction board 15C, the rigidity of the window glass 102 can be further increased. it can.

  Thereby, since the window glass 102 and the liquid crystal panel 106 can be more closely bonded than in the first embodiment, it is possible to prevent air bubbles from being involved.

  Therefore, according to the bonding apparatus 10 and the bonding method of the first and second embodiments, when the window glass 102 is warped, even when the window glass 102 is warped, the window glass 102 and the liquid crystal The liquid crystal panel 106 can be accurately bonded to the window glass 102 without bubbles entering the adhesive layer interface with the panel 106. Therefore, it is effective in the field bonding which bonds the liquid crystal panel 106 to the window glass 102 of a building, and comprises digital signage.

  In the embodiment described above, the substrate bonding apparatus and the bonding method of the present invention have been described with an example in which a liquid crystal panel (second substrate) is bonded to a building window glass (first substrate) in the field. However, the present invention is not limited to this, and it goes without saying that the present invention can be applied to any case where the second substrate is bonded on-site in a state where the first substrate is installed in the building in the vertical direction.

  DESCRIPTION OF SYMBOLS 10 ... Pasting apparatus, 12 ... Plate-shaped member, 12A ... Ring, 14 ... Hanger unit (support member), 15 ... Reinforcement member, 15A ... Flat surface, 15B ... Rigid board, 15C ... Hand adsorption board, 15D ... Horizontal frame 15E ... Vertical frame, 15F ... Surface plate, 15G ... Holding frame, 15H ... Abutting means, 15J ... Claw part, 15K ... Holding arm, 15M ... Connecting arm, 16 ... Flexible roller (pressing means), 18 ... Flexible roller support section, 20 ... bonding load adjusting mechanism section, 22 ... pressing section, 24 ... curved member, 24A ... plate, 24B ... pusher, 24C ... elastic body, 24D ... spring, 24E ... weight member, 24F ... Towing rope, 24G ... Puri, 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 direction 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, 102 ... window Glass, 106 ... Liquid crystal panel

Claims (10)

In laminating apparatus of the substrate to be bonded to the second substrate via an adhesive layer on cemented mating face of the first substrate disposed in a vertical way direction with respect to the floor surface,
A reinforcing member that is detachably attached to the non-bonding surface of the first substrate and reinforces the first substrate;
A flat plate-like member that detachably holds the second substrate;
A support means for suspending and supporting the plate-like member detachably on the bonding surface of the first substrate;
Pressing the second substrate against the first substrate from the side of the plate-like member of the non-bonding surface of the second substrate, and sequentially bonding the second substrate to the first substrate Means,
The board | substrate bonding apparatus characterized by the above-mentioned. By curving the front Symbol plate member further comprising a curved section for curving the second substrate in a convex shape with respect to the first substrate,
The pressing means sequentially bonds the second substrate to the first substrate while flattening the plate-like member that is curved by pressing the second substrate against the first substrate. Item 1. A substrate bonding apparatus according to Item 1. The reinforcing member is
A frame having rigidity against a bonding load from the pressing means applied to the first substrate;
The board | substrate bonding apparatus of Claim 1 or 2 provided with the adsorption | suction part provided with two or more by the flat surface of the said frame, and adsorb | sucking freely to the non-bonding surface of the said 1st board | substrate. The reinforcing member is
It is an adsorption | suction surface plate, The bonding apparatus of the board | substrate of any one of Claims 1-3 . The reinforcing member is
A surface plate,
A holding frame that holds the surface plate, and a suction portion that detachably supports the holding frame on a non-bonding surface of the first substrate;
The board | substrate bonding apparatus of any one of Claims 1-3 provided with the contact means to contact | abut the said surface plate to the non-bonding surface of a said 1st board | substrate. The said pressing means is a flexible roller, The board | substrate bonding apparatus of any one of Claims 1-5 . 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. In bonding method of a substrate to be bonded a second substrate bonded mating face of the first substrate disposed in a vertical way direction with respect to the floor surface via the adhesive layer,
A reinforcing step of reinforcing the first substrate by attaching a reinforcing member to the non-bonding surface of the first substrate;
A holding step of detachably holding the non-bonding surface of the second substrate on a flat plate-like member;
A supporting step of detachably supporting the plate-like member on the bonding surface of the first substrate by a supporting member;
The second substrate is pressed against the bonding surface of the first substrate from the plate-like member side of the non-bonding surface of the second substrate, and the second substrate is bonded to the first substrate. A laminating step of sequentially laminating on the mating surface;
The board | substrate bonding method characterized by having provided. By curving the curving means before Symbol plate member further includes a curved step of bending the second substrate in a convex shape with respect to lamination mating face of the first substrate,
In the bonding step, the second substrate is sequentially bonded to the first substrate while the plate-like member that is curved by pressing the second substrate against the first substrate is flattened. The method for laminating a substrate according to claim 8 . The method for bonding substrates according to claim 8 or 9, wherein the first substrate is a window glass, and the second substrate is an image display panel.

Images