JP2017186734A - Clean room for spot lamination, substrate lamination method using the same, and image display device manufactured by the lamination method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a foreign substance such as a dirt from entering a lamination surface between a transparent surface and a second substrate even if the second substrate is laminated on a surface on an indoor side of a transparent surface through an adhesive layer by spot lamination.SOLUTION: A clean room 200 for spot lamination which is used when laminating a liquid crystal panel 106 on a surface on an indoor side of an existing window glass 102 in a building through an adhesive layer 52 includes a closed space formation member 206 for forming a closed space 204 for lamination work with a surface of the window glass 102 and a floor surface 202 as a partial surface, and an air cleaner 210 for purifying the air in the closed space 204.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a clean room for on-site bonding and a bonding method using the same, and in particular, an on-site bonding used when an image display panel is bonded to an existing transparent surface (for example, window glass) in a building. The present invention relates to a combined clean room, a substrate bonding method using the same, and an image display device manufactured by the bonding method.

  When manufacturing an image display device by bonding an image display panel for digital signage to a transparent surface, if foreign matter such as dust enters the bonding surface of the transparent surface and the image display panel, the image quality is adversely affected. It is necessary to pay close attention to giving

  Conventionally, an image display device is manufactured under a clean work environment in order to avoid the entry of foreign matter. However, when an image display panel is bonded to an existing transparent surface in a building, the transparent surface cannot be removed, and it is difficult to keep the working environment clean. Therefore, there is a possibility that mixing of foreign matters on the bonding surface cannot be sufficiently reduced.

  From such a background, when a transparent surface and an image display panel are bonded at a site where a transparent surface is installed, it is necessary to take measures to prevent foreign matters from entering such as dust. I came.

  As a countermeasure against foreign matter mixing, for example, it is conceivable to use a clean room unit that can easily form a clean room on site as in Patent Document 1.

  The clean room of Patent Document 1 is composed of a machine room unit, a front room unit, and a clean room unit. The machine room unit is provided with an air conditioner and a constant air volume device, and the air conditioner is a HEPA filter unit and an air duct installed in the clean room unit. The constant air volume device is configured as a unit type clean room in which purified air is circulated by being connected via a return air duct and a return air chamber installed in the clean room unit. It is said that a clean room that can be easily installed anywhere can be provided by adopting such a unit type.

JP 2009-2634 A

  However, the clean room unit of Patent Document 1 can be easily installed on the floor of a building that is the site to be bonded. However, in order to perform the bonding operation in the clean room unit, an existing transparent surface (for example, a window glass) ) Must be removed from the building. That is, the clean room unit of Patent Document 1 can simply produce a lean room unit quickly and easily at the bonding site, and is essentially the same as bonding in a clean room such as a factory.

  Therefore, in the clean room unit of Patent Document 1, in the so-called on-site bonding in which the image display panel is bonded in a state where the image display panel is already installed on the transparent surface already installed in the building, the transparent surface and the image display panel The problem of the present application that foreign matter such as dust is not mixed into the adhesive layer interface cannot be solved.

  As described above, there is no clean room in the world suitable for on-site bonding so that foreign matter such as dust does not enter the bonding surface between the transparent surface and the image display panel.

  The present invention has been made in view of such circumstances, and when a substrate is bonded to a transparent surface at a site where the transparent surface is installed, the substrate is attached to the transparent surface via an adhesive layer. Even if pasted, it is manufactured by a clean room for on-site pasting that reduces contamination of foreign substances such as dust on the pasting surface between the transparent surface and the substrate, and a method for pasting a substrate using the same, and its pasting method. An object of the present invention is to provide an image display device.

  The clean room for on-site bonding according to one aspect of the present invention is a clean room for on-site bonding used when a substrate is bonded to an installed transparent surface, and the substrate is bonded to the transparent surface. A closed space forming member that surrounds the bonding work area to be formed to form a closed space, and an air purifier that purifies the air in the closed space.

  Moreover, when the clean room for on-site bonding according to one aspect of the present invention bonds a substrate to the transparent surface provided with an inclination from the vertical direction or the vertical direction with respect to the floor surface of the building via an adhesive layer. A clean room for on-site bonding used in a closed space consisting of the transparent surface bonding surface, the floor surface and a closed space forming member, and an air purifier for purifying the air in the closed space And.

  The bonding method of the board | substrate of 1 aspect of this invention uses a clean room for on-site bonding of any one of Claims 1-4, and a board | substrate is provided through the adhesion layer in the installed transparent surface. A method of bonding substrates to be bonded, wherein a closed space forming step for forming a closed space composed of a bonding surface of the transparent surface, the floor surface, and a closed space forming member, and air in the closed space is air A cleaning step for cleaning with a cleaner, and a bonding step for bonding the substrate to the transparent surface in the cleaned closed space are provided.

  The image display device of one embodiment of the present invention is formed by the pasting method.

  As described above, according to the present invention, in the field bonding, even if the substrate is bonded to the transparent surface via the adhesive layer, foreign matter such as dust is mixed into the bonding surface between the transparent surface and the substrate. Can be reduced.

  Therefore, the present invention is particularly effective when, for example, an image display panel for an image display device is bonded to a window glass existing in a building.

Vertical section of image display device Enlarged sectional view of part A in FIG. The perspective view which shows the one aspect | mode of the clean room for on-site bonding The perspective view which shows another aspect of the closed space formation member of a clean room Side view showing assembly procedure of bellows type clean room Assembly completed drawing of bellows type clean room (A) is a front view of the bonding apparatus, (B) is a side view of the bonding apparatus. Schematic of worker performing bonding work in a clean room Explanatory drawing showing the bonding process in field bonding in a clean room in time series

  Hereinafter, preferred embodiments of an on-site bonding clean room according to the present invention, a substrate bonding method using the same, and an image display device manufactured by the bonding method will be described with reference to the accompanying drawings.

  First, the image display apparatus will be described.

<Image display device 100>
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.

  The image display device 100 is configured by laminating a first substrate (liquid crystal panel) 106 on a transparent surface 102 via an adhesive layer. In a preferred embodiment of the image display device, the transparent surface 102, the first adhesive layer 114, the second substrate 110, the second adhesive layer 116, and the first substrate (liquid crystal panel) 106 are laminated in this order. Is done. Hereinafter, each member will be described.

  Examples of the transparent surface 102 include existing transparent members used in stores, offices, and the like. Examples of the transparent member include glass (for example, window glass), a resin such as acrylic, or a laminated body of glass and resin.

  An example of the first substrate 106 is an image display panel. As an image display panel, 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) etc. are mentioned, for example. 1 and 2 illustrate the liquid crystal panel 106 as the first substrate. The shape of the first 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.

  As shown in FIGS. 1 and 2, the liquid crystal display unit 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 transparent surface 102 via the adhesive layer or the adhesive layer and the second substrate 110. The liquid crystal panel 106 and the backlight 126 are independent, and the backlight 126 is supported on the transparent surface 102 separately from the liquid crystal panel 106.

  The backlight 126 is supported on the transparent surface 102 via an angle 144 having an L-shaped cross section. In FIG. 2, the angle 144 is fixed to the light shielding portion 112 on the second surface 110 b of the second substrate 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 on the transparent surface 102 via the second substrate 110.

(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 shear modulus of the adhesive layer is preferably in the range of 10 ² to 10 ⁵ Pa, and more preferably in the range of 10 ³ to 10 ⁴ Pa.

  The areas of the first adhesive layer 114 and the second adhesive layer 116 are adjusted according to the sizes of the first substrate 106 and the second substrate 110. 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 second substrate 110 has the light shielding portion 112, the first adhesive layer 114 is spread over the entire first surface 110a of the second substrate 110. In contrast to the second adhesive layer 116, the second adhesive layer 116 is provided in a partial region of the second surface 110 b of the second substrate 110. As a result, the second surface 110b of the second substrate 110 has a region where the second adhesive layer 116 is provided and a region where the second adhesive layer 116 is not provided.

(Second substrate 110)
The second substrate 110 is a plate-like body interposed between the liquid crystal panel 106 and the transparent surface 102 when the liquid crystal panel 106 is bonded to the transparent surface 102. Examples of the second substrate 110 include a glass plate and a resin plate. From the viewpoint of having high light resistance, low birefringence, high plane 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, the second Most preferably, a glass plate is used as the substrate 110. If the 2nd board | substrate 110 is a glass substrate, since the transmittance | permeability of the light which hardens the photocurable resin composition which comprises the 1st adhesion layer 114 and the 2nd adhesion layer 116 is high, it can fully harden | cure. .

  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.

  The shape of the second substrate 110 may be determined according to the planar shape of the liquid crystal panel 106 to be bonded, and may be a circle, a rectangle, a square, or the like. In the case of a rectangle, the aspect ratio is particularly limited. It may be vertically long or horizontally long. In the present embodiment, the second substrate 110 has a rectangular shape as an example. If the thickness of the 2nd board | substrate 110 is a glass plate from points, such as mechanical strength and transparency, about 0.2-2.0 mm is preferable. The thickness of the second substrate 110 is more preferably about 0.2 to 1.1 mm in order not to make the observer feel a strong sense of depth in the display image. If it is a resin plate, the thickness of the second substrate 110 is preferably about 0.1 to 1.0 mm.

(Shading part 112)
The second substrate 110 preferably has a light shielding portion 112. The light shielding portion 112 is a wiring such as a flexible printed wiring board connected to the liquid crystal panel 106 so that the area other than the image display area of the liquid crystal panel 106 cannot be seen when the liquid crystal panel 106 is bonded to the transparent surface 102. It hides members and the like. In the case where the second substrate 110 is a glass plate, it is preferable to form the light shielding portion 112 by using a printing method such as ceramic printing including a black pigment because of high light shielding properties. The light shielding portion 112 can be formed using various thin film forming methods.

  Next, an embodiment of a clean room for on-site bonding according to the present invention will be described.

  In the embodiment of the present invention, the clean room closes to form a closed space that surrounds the work area where the operator performs the bonding when the first and second substrates are bonded to the installed transparent surface. A space forming member; and an air cleaner for purifying the air in the closed space.

  Since the installed transparent surface is a surface on which the image display device is bonded, it is preferably a surface that is installed in a vertical direction or inclined from the vertical direction with respect to the floor surface of the building.

  In the embodiment of the present invention, the closed space is not airtight, and there may be a slight opening to the outside. In order to keep the air in the closed space clean, the area of the opening is preferably 10% or less of the inner area of the closed space forming member.

  In the embodiment of the present invention, it is preferable that the closed space is formed by the installed transparent surface and the closed space forming member. Thereby, a 1st and 2nd board | substrate can be bonded to a transparent surface in the state in which the transparent surface was installed.

  In the embodiment of the present invention, when the installed transparent surface is one surface of the room, and the room is a closed space surrounding the work area to be bonded by the operator, the members constituting the room are the closed space. It becomes a forming member. In this case, a closed space is formed by an operator entering the room through the doorway, closing the window of the room, and closing the doorway. Alternatively, a closed space is formed by closing a surface released in a part of the room with a sheet or the like. As the sheet, a vinyl sheet, a tyvek sheet, an insect knitting, or the like can be used.

  In the embodiment of the present invention, it is more preferable to form the closed space using the installed transparent surface and the removable closed space forming member. As a result, the closed space can be made a space large enough to perform the bonding operation, and the degree of cleanliness in the closed space by the air cleaner can be further increased.

  An example of a removable closed space forming member is a tent structure having four lightweight pipes as pillars. In the tent structure, the surface including the installed transparent surface and the floor surface are the opening surfaces. That is, one of the four side surfaces is a surface including an installed transparent surface, and the remaining three side surfaces are closed with a sheet. Furthermore, when the ceiling is closed with a sheet, a closed space is formed. The sheet described above can be used as the sheet.

  An air cleaner will not be specifically limited if it has the capability to clean the air in closed space to the cleanliness degree about 1000 or less. The air purifier may be either a type installed in a closed space or a type installed outside the closed space to send clean air into the closed space. The type that installs an air purifier outside the closed space sucks the air in the closed space into the air purifier and returns the purified air to the closed space, or supplies the purified air to the closed space. A simple air supply type is included.

<Clean room 200 for on-site bonding>
A clean room 200 according to an embodiment of the present invention will be described with reference to FIG. The clean room 200 of FIG. 3 is an example of forming a closed space by surrounding a transparent surface with a closed space forming member having a tent structure. A case where the transparent surface is the window glass 102 existing in the building and the first substrate is the liquid crystal panel 106 will be described below as an example.

  The clean room 200 in FIG. 3 includes a closed space forming member 206 that forms a closed space 204 for bonding work with a part of the surface of the window glass 102 and the floor surface 202, and the closed space forming member 206 as the window glass 102. And detachably supporting means 208, and an air purifier 210 for purifying the air in the closed space 204.

  In the closed space forming member 206, a rectangular floor surface frame 206A and a rectangular window glass surface frame 206B are coupled in an L shape (for example, welded), and the window glass is formed from both left and right ends of the floor surface frame 206A. A pair of arched frames 206C parallel to the left and right ends of the surface side frame are connected (for example, welded). Thereby, the framework structure of the closed space forming member 206 is formed.

  The curtain body 206D is put on a portion of the frame structure of the closed space forming member 206 excluding the floor side frame 206A and the window glass side frame 206B. As a result, a closed space forming member 206 having a tent structure having openings on the window glass side surface and the floor surface side surface is formed.

  It is preferable to attach an elastic body 206E to at least the window glass surface side frame 206B of the floor surface side frame 206A and the window glass surface side frame 206B so as not to damage the window glass 102. FIG. 3 shows a case where the elastic body 206E is attached only to the window glass surface side frame 206B.

  The elastic body 206E is preferably made of a peelable adhesive material. For example, silicone rubber, chloroprene rubber, styrene butadiene rubber, nitrile rubber, thermoplastic rubber (TPR) or rubber having a rubber hardness of A5 to A10 according to JIS-K6253. A thermoplastic elastomer can be suitably used. Thereby, since the window glass surface side frame 206B can be stuck to the window glass, the hermeticity of the closed space 204 is improved. In addition, the window glass 102 can be prevented from being damaged by providing the elastic body 206E.

  The curtain body 206D on one side surface of the closed space forming member 206 is formed with an entrance / exit 212 (opening) through which an operator M (see FIG. 8) performing a bonding operation on the closed space forming member 206 enters and exits. A hanging curtain 212A is suspended from the upper end portion of the entrance / exit 212, and the hanging curtain 212A and the entrance / exit peripheral portion are detachably opened / closed by an opening / closing means (not shown) such as a fastener. Thereby, the worker M who performs the bonding work can open and close the entrance / exit 212 when entering / exiting from the entrance / exit 212.

  A hose connection port 214 that introduces air from the air purifier 210 into the closed space 204 is provided in the curtain body 206D on the lower side of the back side of the closed space forming member 206 (the side opposite to the window glass 102).

  Further, in FIG. 3, the circulation type is shown in which the air in the closed space 204 is sucked into the air purifier 210 through the suction hose 216 and the purified air is returned into the closed space 204 through the return hose 218.

  As the support member 208 that supports the closed space forming member 206 on the window glass 102, for example, a hand suction disk can be used. As the hand suction disk, one having an allowable load of 25 kgf / 1 manufactured by Shinwa Measurement Co., Ltd. can be suitably used.

  FIG. 4 shows a bellows type closed space forming member 206 as another embodiment of the closed space forming member 206.

  As shown in FIG. 4, the bellows type closed space forming member 206 is supported between a pair of opposing brackets 220, 220 and a fulcrum shaft 222, and both ends thereof are rotatably supported by the fulcrum shaft 222. A first portal frame 224 that forms an opening surface on the glass 102 side, a second portal frame 226 that is pivotally supported by the fulcrum shaft 222 and forms an opening surface on the floor surface side, and a fulcrum Three portal frames 228, 228... Disposed between the first portal frame 224 and the second portal frame 226, both ends of which are rotatably supported by the shaft 222, and the first portal. The space from the mold frame 224 to the second portal frame 226 is covered in a portal shape, and the first portal frame 224 and the second portal frame 226 are rotated so as to approach each other in a bellows shape. Folded and turned away And Makutai 230 longitudinal section is developed in the fan shape by, in constructed.

  Accordingly, the bellows type closed space forming member 206 can be made compact by closing the bellows and folding the curtain body 230 when not in use. Therefore, while being able to carry easily to the place of on-site bonding, when the bonding operation | work is complete | finished, the closed space formation member 206 can be easily folded and removed.

  The bellows type closed space forming member 206 does not create an entrance through which the worker M enters and exits the curtain 230. The reason for this is that, as can be seen from FIG. 4, even when the first portal frame 224 side of the closed space forming member 206 is closed by the window glass 102, the operator M can lift the second portal frame 226. This is because an entrance / exit can be formed.

  In addition, it is preferable to provide a gate-shaped elastic body 232 on at least the surface of the first portal frame 224 and the second portal frame 226 on the window glass 102 side of the first portal frame 224. The material of the elastic body 232 is the same as the material described in the clean room of FIG. 3, and the effect is also the same.

  In the case of the bellows type closed space forming member 206, the hose connection port 214, the air purifier 210, the hoses 216 and 218, and the support member (hand suction board) 208 are the same as those in the clean room 200 described in FIG. is there.

  Next, the board | substrate bonding method using the clean room of this invention is demonstrated.

  Embodiment of the bonding method of this invention sticks a board | substrate through an adhesive layer on the transparent surface inclined from a perpendicular direction or a perpendicular direction with respect to the floor surface of a building using an above-described clean room. A closed space forming step for forming a closed space for a bonding operation in which the work surface of the transparent surface and the floor surface are partially formed by a closed space forming member. And a cleaning step of cleaning the air in the closed space with an air cleaner, and a bonding step of bonding the substrate to the transparent surface in the cleaned closed space.

  In embodiment of the bonding method of this invention, an above described 1st board | substrate and 2nd board | substrate can be used as a board | substrate bonded to a transparent surface.

  Below, only the 1st board | substrate (liquid crystal panel) 106 is used as a board | substrate for the window glass 102 already installed in the building which is a transparent surface using the clean room 200, and embodiment of the bonding method of this invention. It demonstrates using the example to paste.

  In this example, the screen size of the liquid crystal panel 106 to be bonded is 42 inches. In addition, the adhesive layer is provided on the liquid crystal panel 106, and the liquid crystal panel 106 is carried into the bonding site in a form in which a release sheet (not shown) is attached to the surface of the adhesive layer. .

<Closed space formation process: assembly of clean room 200>
In the embodiment of the bonding method of the present invention, the closed space 204 is formed by assembling the clean room 200 on the work surface side of the window glass 102. As shown in FIG. 5, in this example, the clean room 200 uses a bellows type closed space forming member 206 and a circulation type air purifier 210.

  As shown in FIG. 5 (A), the worker M carries the bellows type closed space forming member 206 to the building where the on-site bonding is performed in a folded state, and the second gate type of the closed space forming member 206. The frame 226 is placed on the floor 202 with the bottom.

  Next, the operator M grasps the first portal frame 224 of the closed space forming member 206 and moves in the direction of the arrow until the elastic body 232 provided on the first portal frame 224 contacts the window glass 102 (see FIG. 5 (A)). Thereby, the closed space 204 whose vertical cross-sectional shape is a fan shape is formed.

  Next, as shown in FIG. 5B, the worker M fixes the left and right positions of the upper end of the first portal frame 224 to the window glass 102 with a support member (hand suction board) 208. Although there is no particular illustration about a detachable fixing method between the left and right positions of the upper end portion of the first portal frame 224 and the support member 208, for example, an engagement ring is provided at the left and right positions of the upper end portion of the first portal frame 224. A hook member provided on the support member 208 can be engaged with the engagement ring. Even with this simple fixing method, the elastic body 232 provided on the first gate-type frame 224 is in close contact with the window glass 102, so that the closed space forming member 206 is separated from the window glass 102 and has a sealing property. There will be no problems such as worsening.

  Next, the hoses 216 and 218 of the air purifier 210 are connected to the hose connection port 214 provided in the curtain 230 of the closed space forming member 206. Thereby, as shown in FIG. 6, the clean room 200 made into the closed space 204 for the bonding work which made the surface of the window glass 102 and the floor surface 202 a partial surface can be formed easily and rapidly.

  As described above, the clean room 200 according to the embodiment of the present invention forms the closed space 204 in which the window glass 102 that is the surface to be bonded is a part of the surface. Therefore, the clean room 200 can be cleaned without removing the window glass 102 from the building. A closed space can be formed. In this case, the closed space 204 formed by the closed space forming member 206 does not need to be completely sealed, and may be such that foreign matter such as dust outside the closed space 204 does not enter the closed space 204.

<Cleaning process>
The closed space 204 is cleaned by operating the air cleaner 210.

<Bonding process>
The liquid crystal panel 106 is bonded to the window glass 102 in the cleaned closed space 204.

  The worker M carries the liquid crystal panel 106 and the bonding apparatus 10 before assembly into the closed space 204 of the cleaned clean room 200. And the bonding apparatus 10 is assembled in the closed space 204 while the air purifier 210 is operated.

[Bonding device 10]
The bonding apparatus 10 is demonstrated using FIG. FIG. 7A 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. FIG. 7B is a side view of FIG. 7A.

  The bonding apparatus 10 includes a flexible plate-like member 12, a hanger unit (supporting part) 14, a flexible roller 16, a flexible roller supporting part 18, and a stretchability that applies a bonding load to the flexible roller 16. A pressing portion 22 having a bonding load adjusting mechanism portion 20 and a bending portion 24 are provided.

  The assembly procedure of the bonding apparatus 10 is demonstrated using FIG.

  As shown in FIG. 7, the worker M sucks the hand suction board 48 of the hanger unit 14 on the window glass 102 installed vertically so that the rail-shaped member 44 </ b> A is horizontal.

  Next, the surface of the liquid crystal panel 106 having the adhesive layer and the release sheet that does not have the adhesive layer is adsorbed and held on the flexible plate-like member 12. Thereafter, the bending portion 24 is attached to the flexible plate-like member 12, and the release sheet is peeled from the liquid crystal panel 106.

  When the release sheet is peeled off, the adhesive layer of the liquid crystal panel 106 is exposed. Therefore, when the position of the flexible plate-like member 12 holding the liquid crystal panel 106 by suction is adjusted with respect to the window glass 102, the adhesive layer Needs to be prevented from accidentally contacting the window glass 102. For this purpose, the flexible plate-like member 12 may be suspended at a position where the adhesive layer is separated from the window glass 102. At the time of pasting, the turnbuckle 50 moves so that the lower end of the turnbuckle 50 approaches the window glass 102, and the adhesive layer and the window glass 102 are in close contact with each other.

  In order to prevent erroneous contact, as shown in FIG. 7B, a band-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 provided along the upper edge of the liquid crystal panel 106 where the adhesive layer 52 may come into contact with the window glass 102. The sponge member 84 may be provided so as to surround not only the upper edge of the liquid crystal panel 106 but also the liquid crystal panel 106.

  Since the sponge member 84 is compressed to the thickness of the liquid crystal panel 106 by the bonding load by the flexible roller 16 at the time of bonding, it does not hinder the bonding of the liquid crystal panel 106 to the window glass 102.

  As shown in FIG. 7B, a dummy sheet 86 having the same thickness as the liquid crystal panel 106 is pasted on the surface of the flexible plate-like member 12 on the upstream side of the pasting start position on the window glass 102 side. It is preferable to keep it. When the dummy sheet 86 is interposed, the occurrence of the difference in the bonding load by the flexible roller 16 can be eliminated before and after the bonding start position, so that the bonding at the start of the bonding can be performed smoothly.

  Next, the ring 12A of the flexible plate-like member 12 holding the liquid crystal panel 106 is detachably engaged with the hooks 50A of the pair of turnbuckles 50 of the hanger unit 14, and the flexible plate together with the liquid crystal panel 106 is attached. The shaped member 12 is suspended and supported on the window glass 102 via the hanger unit 14.

  The hanger unit 14 adjusts the horizontal direction, the vertical direction, and the inclination of the flexible plate-like member 12 to adjust the position of the liquid crystal panel 106 at the bonding position of the window glass 102.

  The flexible plate member 12 is bent by the bending portion 24. And the bonding position of the liquid crystal panel 106 is adjusted in this state.

  Next, the flexible roller support portion 18 is attached to the window glass 102 by the four hand suction boards 48 provided on the rail frame 54 so as to surround the flexible plate-like member 12 supported by the suspension. Thereafter, the pressing portion 22 is mounted from the slope portion at the upper end of the rail 56 of the flexible roller support portion 18.

  By the above, as shown in FIG. 8, the bonding apparatus 10 shown in FIG. 7 is assembled in the clean closed space 204 formed by the closed space forming member 206. In FIG. 8, the bonding apparatus 10 is omitted and illustrated.

  In the flexible plate member 12 of FIG. 7, reference numeral 36 is a suction port, reference numeral 38 is a suction hose, and reference numeral 40 is a vacuum pump. In the hanger unit (supporting portion) 14, reference numeral 44 denotes a horizontal position adjustment unit, reference numeral 44 </ b> A denotes a rail-shaped member, reference numeral 44 </ b> B denotes a linear slider, and reference numeral 46 denotes a vertical position adjustment unit. In the flexible roller support portion 18, reference numeral 58 is a connecting rod of the rail 56.

  Next, the bonding procedure of the liquid crystal panel 106 will be described with reference to FIG. In FIG. 9, the flexible roller support portion 18 is not shown in order to avoid complexity of the drawing.

  As shown in FIG. 9A, the pressing portion 22 is attached to the upper end of the rail 56 from above the rail 56 as shown in FIG. In this state, the worker M grips the roller operation bar 60 and pushes down the roller operation bar 60 to start bonding with the flexible roller 16.

  When the flexible roller 16 is moved from the position shown in FIG. 9B to the position shown in FIG. The roller 16 is smoothly moved to a substantial bonding start position without being affected by the difference in rigidity of the flexible plate-like member 12.

  Next, as shown in FIGS. 9C to 9E, the flexible roller 16 is pressed from the back surface of the flexible plate-like member 12 toward the window glass 102 via the roller operation bar 60 and pasted. Apply a combined load. Thereby, the upper end (bonding start end) of the liquid crystal panel 106 is bonded to the window glass 102. Then, the flexible roller 16 is moved downward from the upper end to the lower end of the flexible plate member 12. Accordingly, the bending of the flexible plate-like member 12 portion existing in the moving direction of the flexible roller 16 is corrected flat against the urging force of the spring of the bending portion 24, so that the liquid crystal panel 106 The bonding surface is sequentially bonded to the window glass 102 from the upper end to the lower end. Due to the action of the spring of the curved portion 24 and the flexible roller 16, the bonding surface of the liquid crystal panel 106 is bonded to the window glass 102 without entraining bubbles.

  As shown in FIG. 9 (E), the pressing portion 22 is moved to a position beyond the sponge member 84 arranged at the lower position of the liquid crystal panel 106, and this is the bonding end position. At this time, the suction holding of the liquid crystal panel 106 by the flexible plate-like member 12 is released.

  In addition, although the said bonding operation | movement is a bonding operation | movement which moves the flexible roller 16 once from a bonding end position to a bonding end position, it is a flexible roller from a bonding end position to a bonding start position. 16 may be moved up and a reciprocating bonding operation may be performed.

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

  After the pasting operation is finished, the pasting device 10 is removed from the window glass 102. In this case, before removing the closed space forming member 206 from the window glass 102, the bonding apparatus 10 may be removed in the closed space 204, or after the closed space forming member 206 is removed from the window glass 102, the bonding is performed. The device 10 may be removed. Note that the disassembly procedure of the clean room 200 may be the reverse of the assembly procedure.

  In removing the bonding device 10, first, the pressing portion 22 is removed from the rail 56. Next, the flexible roller support 18 is removed from the window glass 102, and the flexible plate member 12 is removed from the hanger unit 14. Finally, the hanger unit 14 is removed from the window glass 102. Thereby, the image display apparatus by which the liquid crystal panel 106 was bonded to the window glass 102 can be comprised.

  DESCRIPTION OF SYMBOLS 10 ... Bonding apparatus, 12 ... Flexible plate-shaped member, 12A ... Ring, 14 ... Hanger unit, 16 ... Flexible roller, 18 ... Flexible roller support part, 20 ... Bonding load adjustment mechanism part, 22 ... Pressing part, 24 ... Bending part, 36 ... Suction port, 38 ... Suction hose, 40 ... Vacuum pump, 42 ... Adhesive, 44 ... Horizontal position adjustment part, 44A ... Rail member, 44B ... Linear slider, 46 ... Vertical position adjustment unit, 48 ... hand suction board, 50 ... turn buckle, 50A ... hook, 52 ... adhesive layer, 54 rail frame, 56 ... rail, 58 ... connecting rod, 60 ... roller operation bar, 84 ... sponge member, 86 ... Dummy sheet, 102 ... Window glass, 106 ... Liquid crystal panel, 200 ... Clean room for on-site bonding, 202 ... Building floor, 204 ... Closed space, 206 ... Closed space forming member, 20 DESCRIPTION OF SYMBOLS ... Support member (support means), 210 ... Air cleaner, 212 ... Entrance / exit, 214 ... Hose connection port, 216 ... Suction hose, 218 ... Return hose, 220 ... Bracket, 222 ... Supporting shaft, 224 ... First portal type Frame, 226 ... second portal frame, 228 ... gate frame, 230 ... curtain body, 232 ... elastic body, M ... worker

Claims (8)

It is a clean room for on-site bonding used when bonding a substrate to an installed transparent surface,
A closed space forming member that surrounds a bonding work area for bonding the substrate to the transparent surface and forms a closed space;
An on-site laminating clean room comprising: an air purifier for purifying air in the closed space. It is a clean room for on-site bonding used when bonding a substrate through an adhesive layer to a transparent surface inclined from the vertical direction or the vertical direction with respect to the floor surface of the building,
A closed space composed of a bonding surface of the transparent surface, the floor surface, and a closed space forming member;
An on-site laminating clean room comprising: an air purifier for purifying air in the closed space.   The clean room for on-site bonding according to claim 1 or 2, further comprising support means for detachably supporting the closed space forming member on a transparent surface.   The clean room for on-site bonding according to any one of claims 1 to 3, wherein the transparent surface is a window glass, and the substrate is an image display panel. It is the bonding method of the board | substrate which bonds a board | substrate through the adhesion layer to the installed transparent surface using the clean room for field bonding of any one of Claims 1-4,
A closed space forming step for forming a closed space composed of the bonding surface of the transparent surface, the floor surface, and a closed space forming member;
A cleaning step of cleaning the air in the closed space with an air cleaner;
A bonding step of bonding the substrate to the transparent surface in the purified closed space; and a method for bonding substrates.   The board | substrate bonding method of Claim 5 provided with the process in which the said board | substrate has an adhesion layer and a peeling sheet in the bonding surface, and peels the said peeling sheet in the said purified closed space.   The said bonding process WHEREIN: The board | substrate of Claim 5 or 6 provided with the assembly process of carrying in an assembly-type bonding apparatus in the said closed space in the state before an assembly, and assembling the said bonding apparatus in the said closed space. Pasting method.   The image display apparatus manufactured by the bonding method of any one of Claims 5-7.

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