JPWO2014175190A1 - Multi-layer glass structure, display device for vehicle and display device for refrigeration / refrigeration equipment - Google Patents

Abstract

The multi-layer glass structure includes a first glass substrate and a second glass substrate disposed so as to face each other, and is disposed on an outer peripheral edge portion of the first glass substrate and the second glass substrate. Spacer material that forms a space of a predetermined size between the first glass substrate and the second glass substrate, and the outside of the first glass substrate and the second glass substrate in the space. The spacer member includes a display device arranged close to one side of the peripheral portion and a cable connected to the display device, and the spacer material is provided with an insertion path for the cable.

Description

  The present invention relates to a multilayer glass structure, a display device for a vehicle, and a display device for a refrigeration / freezing apparatus.

  In recent years, in order to provide passengers with various kinds of information such as advertising notices and train delay information, railway vehicles equipped with liquid crystal display devices have been operating in passenger cabins. And the liquid crystal display device is mainly provided in the upper part of the opening / closing door of a railway vehicle.

  In addition, a multi-layer glass structure in which two glass substrates are opposed to each other is used for a train window in order to increase the area and prevent condensation (for example, see Patent Document 1).

JP 2004-76448 A

  A liquid crystal display device installed in a conventional railway vehicle is installed above the opening / closing door, so passengers near the opening / closing door can see the display content, but passengers away from the opening / closing door can display Was too small to be seen.

  On the other hand, there is a multi-layered window glass and a net shelf on which luggage is placed between the opening and closing door, so a display device is attached to the window glass so that more passengers can see it. It is requested.

  Further, as a field other than railway vehicles, for example, in a refrigeration / freezing apparatus for a store that refrigerates or freezes beverages and foods, two glass substrates are provided on an opening / closing door provided in front of the apparatus to prevent condensation. A multi-layer glass structure is used in which the two are arranged opposite to each other. In the case of this refrigeration / refrigeration apparatus, it is desired that the name of an internal product can be known or a product advertisement can be displayed without opening the door.

  When a display device is provided in such a multi-layer glass structure, a cable for supplying power or supplying an image signal to the display device will be wired. If the cable is exposed, the cable may come into contact with surrounding devices or other members and break.

  Therefore, in view of the above circumstances, the present invention has a multilayer glass structure, a vehicle display device, and a refrigerator / freezer that solves the above-mentioned problems by incorporating a display device in the multilayer glass and preventing wiring from being exposed. The purpose is to provide display equipment for devices.

  According to one embodiment, the first glass substrate and the second glass substrate are disposed so as to face each other, and are disposed at outer peripheral edges of the first glass substrate and the second glass substrate. Spacer material that forms a space of a predetermined size between the first glass substrate and the second glass substrate, and the outside of the first glass substrate and the second glass substrate in the space. A multilayer glass structure comprising: a display device arranged close to one side of a peripheral edge; and a cable connected to the display device, wherein the spacer material is provided with an insertion path for the cable. The body is provided.

It is sectional drawing which showed typically the structure of the display apparatus for vehicles by the basic structure of a multilayer glass structure. FIG. 2 is a schematic plan view of a first vehicle display device having a basic structure shown in FIG. 1. It is sectional drawing which showed typically the structure of the 2nd display apparatus for vehicles by the basic structure of a multilayer glass structure. It is the figure which showed typically the state which installed the display apparatus for vehicles in the rail vehicle. It is the flowchart which showed schematically the basic manufacturing method of the display apparatus for vehicles. It is the figure which showed the mode of the 1 process in the manufacturing method shown in FIG. 5 schematically. It is the figure which showed the mode of the 1 process in the manufacturing method shown in FIG. 5 schematically. It is the front view which showed typically the structure of the display apparatus for vehicles by Embodiment 1 of the multilayer glass structure by this invention. FIG. 9 is a longitudinal sectional view taken along line VIII-VIII in FIG. 8. It is the longitudinal cross-sectional view which looked at the A section from the front in FIG. It is the front view which showed typically the structure of the display apparatus for refrigeration / freezing apparatus by Embodiment 2 of the multilayer glass structure by this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  In the following description, first, a display device for a vehicle to which the basic structure of a multilayer glass structure is applied will be described, and then Embodiment 1 of the multilayer glass structure will be described.

(First display device for vehicle)
FIG. 1 is a cross-sectional view schematically showing a configuration of a vehicle display device having a basic structure of a multilayer glass structure. FIG. 2 is a schematic plan view of the first vehicle display device having the basic structure shown in FIG. In the following description, as an example, the configuration and characteristics of the first vehicle display device 100 will be described assuming that the first vehicle display device 100 is applied to a window glass of a railway vehicle.

  As shown in FIGS. 1 and 2, the first vehicle display device 100 includes a first glass substrate 110, a second glass substrate 120, a first glass substrate 110, and a second glass substrate 120. And a multi-layer glass structure having a space 130 provided therebetween.

  The first glass substrate 110 has a first surface 112 and a second surface 114 as glass surfaces. In the first display apparatus for a vehicle 100, the first glass substrate 110 is arranged so that the second surface 114 side is the outside. Similarly, the 2nd glass substrate 120 has the 3rd surface 122 and the 4th surface 124 as a glass surface. In the first display apparatus for a vehicle 100, the second glass substrate 120 is arranged such that the fourth surface 124 side is the outside. Accordingly, the space 130 is formed between the first surface 112 of the first glass substrate 110 and the third surface 122 of the second glass substrate 120.

  A functional film 140 may optionally be provided on the third surface 122 of the second glass substrate 120. The type of the functional film 140 is not particularly limited. The functional film 140 may be, for example, a heat ray reflective film or a UV reflective film. However, the installation of the functional film 140 is not always necessary.

  The space portion 130 is hermetically sealed with a spacer material 150, thereby blocking the space portion 130 from the external environment. The detailed configuration of the spacer material 150 will be described later. The space 130 is filled with dry gas. The kind of gas will not be restricted especially if it is the gas which can be filled in the space part of the conventional multilayer glass. The space 130 may be filled with, for example, dry air or dry inert gas.

  When such a first vehicle display device 100 is applied to, for example, a window glass of a railway vehicle, the first glass substrate 110 side is the inside, that is, the vehicle interior side, and the second glass substrate side is the outside. That is, it is the vehicle exterior side.

  First vehicle display device 100 further includes a display device 170 disposed in space 130.

  The display device 170 is disposed on the first surface 112 of the first glass substrate 110. Further, the display device 170 is arranged such that the first glass substrate 110 side is the display surface side. Therefore, when the display device 170 is in the on state, the passenger can visually recognize an image or video displayed on the display device 170 from the first glass substrate 110 side (that is, the vehicle interior side).

  A method for attaching the display device 170 to the first surface 112 of the first glass substrate 110 is not particularly limited. The display device 170 may be attached to the first surface 112 of the first glass substrate 110 using, for example, a transparent adhesive or a transparent adhesive tape.

  A printed film by black ceramic firing may be formed on the periphery of the glass substrate 110 where the display device 170 is attached. Thereby, the members attached to the display device 170 are not seen from the inside of the vehicle, and the appearance is excellent.

  When the first vehicle display device 100 configured in this way is applied to a window glass or the like of a railway vehicle, more passengers in the cabin than in a case where a display device is provided only at the upper part of the door. The display device can be visually recognized. Therefore, the first vehicle display device 100 can provide various types of information to more passengers.

  Here, in the example of FIG. 2, the first vehicle display device 100 includes a single display device 170 as the display device 170. However, the number of display devices 170 is not particularly limited. The number of display devices 170 may be two or more, for example, three. The number of display devices 170 can be freely selected according to, for example, the dimensions of the first glass substrate 110 and the dimensions of the display device 170. In addition, the display device 170 is preferably arranged on a part of the entire surface of the glass substrate 110. Thereby, the appearance from the vehicle window is not impaired.

  It is preferable that an antireflection treatment is performed on the inner surface of the first glass substrate 110. It is preferable that at least a portion of the display device 170 on which an image is displayed is subjected to an antireflection treatment. The antireflection treatment is performed, for example, by coating an antireflection layer.

  Further, the attachment position of the display device 170 with respect to the first glass substrate 110 is not particularly limited. However, as shown in FIG. 2, when the first glass substrate 110 (and the second glass substrate 120) has a rectangular shape, the display device 170 can be configured to be disposed close to any one side. . Furthermore, the display device 170 is preferably attached in the vicinity of the upper side 102 of the upper portion of the first vehicle display device 100 as shown in FIG. In other words, the display device 170 is preferably attached in the vicinity of one side (upper side 102) located on the upper side in the display direction when characters and images are displayed on the display device 170. Thereby, the wiring connected to the display device 170 can be made inconspicuous. Further, it is possible to significantly avoid the display device 170 from being shaded by a passenger sitting in the seat. Furthermore, the display device 170 is preferably disposed on a part of the entire surface of the glass substrate 110. Thereby, the appearance from the vehicle window is not impaired. In particular, it is preferable that the display device 170 is disposed in a portion of 2 to 40% of the entire surface of the glass substrate 110. More preferably, it is 10 to 30%.

  Also, when there are a plurality of display devices 170, the arrangement form is not particularly limited. For example, the display devices 170 may be arranged in a line along the horizontal direction. Also in this case, as described above, each display device 170 is preferably arranged in the vicinity of the upper side 102 of the upper portion of the first vehicle display device 100. When a plurality of display devices 170 are arranged, the display devices 170 may be arranged on one glass substrate 110 as described above, and the display devices 170 are arranged on the first glass substrate 110 and the second glass substrate 120 so as to be shifted one by one. The first glass substrate 110 and the second glass substrate 120 may be arranged to face each other. In either case, the occupation area ratio of the display device to the entire surface of the first glass substrate 110 and the second glass substrate 120 is preferably 2 to 40% as described above. More preferably, it is 10 to 30%.

(About the second display device for vehicles)
Next, the second vehicle display device will be described with reference to FIG.

  FIG. 3 is a schematic cross-sectional view of the second vehicle display device. Also in this case, in the following description, as an example, assuming the case where the second vehicle display device 200 is applied to a window glass of a railway vehicle, the configuration and characteristics of the second vehicle display device 200 are described. explain.

  As shown in FIG. 3, the second vehicle display device 200 basically has the same configuration as the first vehicle display device 100 shown in FIG. 1. Therefore, in the second vehicle display device 200, the same reference numerals as those in the first vehicle display device 100 are given reference numerals obtained by adding 100 to the reference numerals shown in FIG.

  In the second vehicle display device 200 as well, the functional film 240 provided on the third surface 222 of the second glass substrate 220 is arbitrarily installed and is not an essential component.

  Here, the second vehicle display device 200 is different from the first vehicle display device 100 in that an opaque member 275 is further provided on the third surface 222 side of the second glass substrate 220. Is different.

  The opaque member 275 is disposed at a position corresponding to the display device 270 when the second vehicle display device 200 is viewed from the outside of the vehicle (that is, the second glass substrate 220 side). For example, the opaque member 275 may be arranged with a size slightly larger than that of the display device 270.

  With the installation of the opaque member 275, the display device 270 is shaded, and when a person outside the railway vehicle views the second vehicle display device 200, the back surface of the display device 270 is not easily seen. . Thereby, it can suppress significantly that the back surface of the display apparatus 270 is exposed and the aesthetics of the 2nd display apparatus 200 for vehicles, and also a rail vehicle are impaired.

  The form of the opaque member 275 is not particularly limited. The opaque member 275 may be, for example, a printing film or a sticker by organic ink or ceramic firing.

(Application examples of vehicle display devices)
FIG. 4 schematically shows an example in which the vehicle display device 400 (third vehicle display device) is applied to a window glass of a railway vehicle. FIG. 4 shows a state in which the vehicle display device 400 is viewed from the inside of the railway vehicle, that is, from the cabin 401 side.

  The third vehicle display device 400 is formed of a glass structure disposed in a space surrounded by a metal frame member 405, for example.

  Third vehicle display device 400 basically has the same configuration as first vehicle display device 100 shown in FIGS. 1 and 2 described above. Accordingly, in the third vehicle display device 400, the same reference numerals as those in the first vehicle display device 100 are given reference numerals obtained by adding 300 to the reference numerals shown in FIG. 1.

  However, in the example of FIG. 4, the third vehicle display device 400 includes three display devices 470a, 470b, and 470c. These display devices 470 a, 470 b, and 470 c are arranged along a line in the vicinity of the upper side formed in the upper portion of the vehicle display device 400, that is, immediately below the upper frame member 405.

  As in the case of the first vehicle display device 100 described above, the vehicle display device 400 is arranged such that the first glass substrate (window glass) 410 side becomes the passenger room 401 side (that is, the passenger side). Installed in the vehicle. Therefore, the passengers in the cabin 401 can visually recognize the display objects (images) displayed on the display devices 470a, 470b, and 470c.

  Although the aspect of the display thing displayed on the display apparatuses 470a, 470b, 470c is not specifically limited, For example, character information, an image, an image | video, etc. may be sufficient. For example, the display devices 470a, 470b, and 470c may display information that guides geographical features such as various landmarks that are visible outside the window. Alternatively, various advertising announcements or news information such as train operation information may be displayed on the display devices 470a, 470b, and 470c.

  Moreover, the display thing displayed on each display apparatus 470a, 470b, 470c at the same time may be the same, or may differ. In the latter case, for example, in FIG. 4, a series of images or videos are displayed over the display devices 470a, 470b, and 470c so that the images continuously change from left to right or from right to left. You may do it.

  As described above, when the vehicular display device 400 is applied to a window glass of a railway vehicle, the image is obtained for more passengers than in the case where a display device is disposed only on the upper part of a conventional open / close door. Alternatively, a display object such as a video can be provided.

(About each structural member of the display device for vehicles)
Next, the specifications and the like of each component included in the vehicle display device will be briefly described. Here, the constituent members will be described by taking the second vehicle display device 200 shown in FIG. 3 as an example. However, it will be apparent to those skilled in the art that the following description can be similarly applied to the components constituting the first vehicle display device 100 and the third vehicle display device 400. Further, in the following description, the reference numerals shown in FIG. 3 are used for the respective members in order to clarify the description.

(First glass substrate 210 and second glass substrate 220)
The dimension of the first glass substrate 210 is not particularly limited. The dimension of the 1st glass substrate 210 can be freely selected according to the site | part to which the vehicle display apparatus 200 is applied. For example, the thickness of the first glass substrate 210 may be about 1 mm to 5 mm.

  The glass composition of the first glass substrate 210 is not particularly limited. The first glass substrate 210 may be, for example, soda lime glass, alkali-free glass, aluminosilicate glass, or organic glass.

  Note that at least one surface of the first glass substrate 210 may be chemically strengthened or physically strengthened.

  Here, “chemical strengthening treatment (method)” means that a glass material is immersed in a molten salt containing an alkali metal, and an alkali metal (ion) having a small atomic diameter present on the outermost surface of the glass material is introduced into the molten salt. This is a generic term for technologies that replace existing alkali metals (ions) with a large atomic diameter. In the “chemical strengthening treatment (method)”, an alkali metal (ion) having an atomic diameter larger than that of the original atom is disposed on the surface of the treated glass material. For this reason, compressive stress can be applied to the surface of the glass material, thereby improving the strength of the glass material.

  For example, when the first glass substrate 210 contains sodium (Na), this sodium is replaced with, for example, potassium (K) by the chemical strengthening treatment. Alternatively, for example, when the first glass substrate 210 contains lithium (Li), this lithium may be replaced with, for example, sodium (Na) and / or potassium (K) by chemical strengthening treatment.

  The “physical strengthening treatment (method)” refers to a technique for forming a residual stress distribution in the glass material by rapidly cooling the glass material from a high-temperature “飴” state. In the normal case, the inside of the glass material is less susceptible to rapid cooling than the surface, and is cooled and solidified relatively slowly. For this reason, during rapid cooling, the residual compressive stress increases from the inside to the surface of the glass material, and a depth direction profile of the residual compressive stress is obtained. On the surface of the glass material finally obtained, a compressive stress layer is formed with a relatively deep thickness, whereby the strength of the glass material is improved as compared with that before the physical strengthening treatment.

  The area subjected to the chemical strengthening process and the physical strengthening process is not particularly limited. For example, the entire first exposed surface of the first glass substrate 210 may be tempered. Further, for example, the first glass substrate 210 may be subjected to a tempering process only on one of the first surface 212 and the second surface 214.

  By performing such a surface strengthening process on the first glass substrate 210, the strength of the first glass substrate 210 is improved. In addition, the thickness of the first glass substrate 210 can be further reduced.

  The same thing as the 1st glass substrate 210 can be used also about the 2nd glass substrate 220. FIG. Note that the materials, dimensions (thickness), physical properties, and the like of the first glass substrate 210 and the second glass substrate 220 may be the same or different. Moreover, the 1st glass substrate 210 and the 2nd glass substrate 220 may each be the laminated glass which affixed two glass plates through the intermediate film or sheet material.

(About display device 270)
The display device 270 used in the second vehicle display device 200 has a panel shape having a thickness that can be stored in a space 230 formed between the first glass substrate 210 and the second glass substrate 220. Is formed. Further, the type of the display device 270 is not particularly limited. The display device 270 may be, for example, a liquid crystal display device, a plasma display device, or an organic EL display device.

  In addition, the size of the display device 270 is not particularly limited, but if the size is too large, the weight becomes large and it is difficult to attach the display device 270 to the first glass substrate 210. The size of the display device 270 is, for example, in the range of 10 inches to 46 inches.

  Note that the thickness of the display device 270 (the length in the X direction in FIG. 3) is preferably thinner than the thickness of the space 230 (the length in the X direction in FIG. 3). When the thickness of the display device 270 is substantially equal to the thickness of the space portion 230, there is no gap on the back surface of the display device 270, so that when the vibration or the like occurs, the display device 270 contacts the second glass substrate 220. In contact therewith, the second glass substrate 220 may be damaged.

  Although the installation position of the display device 270 with respect to the first glass substrate 210 and further to the second vehicle display device 200 is not particularly limited, as described above, the display device 270 includes the second vehicle display device 200. It is preferable to dispose in the vicinity of the upper side formed at the upper end of the upper spacer member 250, that is, immediately below the upper spacer member 250. Thereby, wirings connected to the display device 270 can be made inconspicuous. In addition, it is possible to significantly avoid the display device 270 being shaded by a passenger sitting in the seat.

  A method for attaching the display device 270 to the first glass substrate 210 is not particularly limited. The display device 270 may be attached to the first surface 212 of the first glass substrate 210 using, for example, a transparent adhesive or a transparent adhesive tape.

  The transparent adhesive may be made of a transparent resin, for example. The transparent adhesive may be formed, for example, by curing a liquid curable resin composition.

  In this case, by applying an uncured resin composition on the first surface 212 of the first glass substrate 210 and further disposing the display device 270 on the resin composition, the resin composition is cured, The first glass substrate 210 and the display device 270 are bonded.

The transparent adhesive preferably has a shear elastic modulus at 25 ° C. in the range of 10 ³ Pa to 10 ⁷ Pa, and more preferably in the range of 10 ⁴ Pa to 10 ⁶ Pa. In particular, when the shear elastic modulus at 25 ° C. of the transparent adhesive is in the range of 10 ⁴ Pa to 10 ⁵ Pa, the gap that may be generated when the first glass substrate 210 and the display device 270 are joined is relatively small. It can be easily lost.

When the shear elastic modulus at 25 ° C. is 10 ³ Pa or more, the shape of the transparent adhesive can be properly maintained. Further, even when the thickness of the transparent adhesive is relatively thick, the thickness can be kept uniform throughout the transparent adhesive, and when the first glass substrate 210 and the display device 270 are joined, Gaps are less likely to occur at the interface between the display device 270 and the transparent adhesive.

Moreover, when the shear elastic modulus at 25 ° C. of the transparent adhesive is 10 ⁴ Pa or more, the deformation of the transparent adhesive can be significantly suppressed. When the shear elastic modulus of the transparent adhesive is 10 ⁷ Pa or less, the transparent adhesive can exhibit good adhesion when the first glass substrate 210 and the display device 270 are joined.

  The thickness of the transparent adhesive is preferably 0.03 mm to 2 mm, and more preferably 0.1 mm to 0.8 mm.

  When the thickness of the transparent adhesive is 0.03 mm or more, when an external force or the like is applied from the outside of the first glass substrate 210 toward the second vehicle display device 200, the impact due to the external force is caused by the transparent adhesive. As a result, the display device 270 can be appropriately protected. In addition, even if a foreign substance having a dimension less than the thickness of the transparent adhesive is mixed between the first glass substrate 210 and the display device 270, the thickness of the transparent adhesive does not change so much, so that light transmission due to the foreign substance mixed in The influence on performance can be significantly suppressed. Moreover, when the thickness of a transparent adhesive is 2 mm or less, the raise of the thickness of the display apparatus 270 part by a transparent adhesive can be suppressed significantly.

  Note that the transparent adhesive may not be formed as a single layer, but may be composed of a layered portion at a central portion in plan view and a weir-shaped portion surrounding the periphery of the layered portion. For example, when the transparent portion is formed from the liquid curable resin composition on the first glass substrate 210, the weir-shaped portion has a predetermined range on the first surface 212. Beyond, it has a role of suppressing outward spreading (that is, a role of blocking outflow of the liquid curable resin composition for the layered portion).

  The dam-like portion may be constituted by curing a curable resin composition different from the curable resin composition constituting the layered portion of the central portion.

(Regarding the functional film 240)
The functional film 240 may be provided on at least a part of the third surface 222 of the second glass substrate 220 as necessary.

  The type of the functional film 240 is not particularly limited. The functional film 240 may be, for example, a heat ray reflective film or a UV ray reflective film.

  By installing the functional film 240, various functions can be imparted to the second vehicle display device 200.

  In addition to or in addition to this, a second functional film may be provided on the first surface 212 and / or the second surface 214 of the first glass substrate 210. However, when the second functional film is installed on the first surface 212 of the first glass substrate 210, it is preferable to install the second functional film in a region other than the region where the display device 270 is installed. .

(Opaque member 275)
An opaque member 275 is installed on at least a part of the third surface 222 of the second glass substrate 220 as necessary. When the functional film 240 exists on the third surface 222 of the second glass substrate 220, the opaque member 275 is disposed on the functional film 240. Alternatively, the functional film 240 may also serve as the opaque member 275.

  By installing the opaque member 275, when a person outside the railway vehicle looks at the second vehicle display device 200, the back surface of the display device 270 is hardly visible. Thereby, the aesthetics of the 2nd display apparatus 200 for vehicles improve. For this purpose, the dimension of the opaque member 275 may be at least one dimension larger than that of the display device 270 when the second vehicle display device 200 is viewed from the second glass substrate 220 side. preferable.

  The type and installation method of the opaque member 275 are not particularly limited. The opaque member 275 may be, for example, a printed film by organic ink or ceramic baking, a sticker attached, or the like.

  The printed film may be placed on the third surface 222 of the second glass substrate 220 by, for example, a screen printing method or an ink jet printing method. The printed film by ceramic firing is, for example, applying a glass frit containing a pigment or a dye to the third surface 222 of the second glass substrate 220 by screen printing, and then heat-strengthening the second glass substrate 220. It may be formed by firing at times. For example, the sticker may be attached to the third surface 222 of the second glass substrate 220 so that the pattern is on the outside (the second glass substrate 220 side).

  Note that the opaque member 275 may be directly installed on the back surface (the second glass substrate 220 side) of the display device 270 if possible.

(About spacer material 250)
As the spacer material 250, the material used in the conventional multilayer glass can be applied. For example, the spacer material 250 may be made of aluminum or an aluminum alloy. A resin spacer in which a desiccant is kneaded can also be used.

  The spacer member 250 may be hollow and a desiccant such as silica gel may be installed therein. Thereby, the penetration | invasion of the water | moisture content from the outside to the space part 230 can be suppressed further.

(About the basic manufacturing method of vehicle display equipment)
Next, an example of a basic method for manufacturing a vehicle display device will be briefly described with reference to FIGS.

  FIG. 5 schematically shows a flow of a method for manufacturing a vehicle display device. 6 to 7 schematically show a state of one step in the manufacturing method shown in FIG.

  Here, as an example, the manufacturing method thereof will be described using the second vehicle display device 200 shown in FIG. 3 as an example. However, it will be apparent to those skilled in the art that the manufacturing method described below can be applied to the first vehicle display device 100 and the third vehicle display device 400 in the same manner. Moreover, in the following description, in order to clarify the description, the reference numerals shown in FIG.

As shown in FIG. 5, the basic manufacturing method of the display device for a vehicle is
(A) attaching at least one display device to the first surface of the first glass substrate (step S110);
(B) A step of laminating a first glass substrate and a second glass substrate so that a sealed space is formed therebetween, wherein the display device is disposed in the sealed space (step) S120)
Have

  Hereinafter, each step will be described.

(About Step S110)
First, a first glass substrate 210 (FIG. 6A) having a first surface 212 and a second surface 214, and a second glass substrate 220 having a third surface 222 and a fourth surface 224 ( FIG. 6B is prepared. Note that a functional film may be disposed on the third surface 222 of the second glass substrate 220.

  Next, as shown in FIG. 6A, at least one display device 270 is disposed at a desired position on the first surface 212 of the first glass substrate 210. Further, as shown in FIG. 6B, an opaque member 275 is installed at a predetermined position on the third surface 222 of the second glass substrate 220. However, the installation of the opaque member 275 is arbitrary.

(About Step S120)
Next, the first glass substrate 210 and the second glass substrate 220 are arranged so that the first surface 212 of the first glass substrate 210 and the third surface 222 of the second glass substrate 220 face each other. Are stacked. Here, the first glass substrate 210 and the second glass substrate 220 are stacked on each other so that a space capable of accommodating the display device 270 is formed therebetween.

  In FIG. 7, the first glass substrate 210 and the second glass substrate 220 are stacked so that such a space is formed between the first glass substrate 210 and the second glass substrate 220. An example of a process is shown.

  As shown in FIG. 7, around the first glass substrate 210, four substantially prismatic spacer members 250 a to 250 d are arranged. It should be noted that the height of these spacer members 250a to 250d (the length in the Z direction in the figure) is larger than the height of the display device 270.

  Each spacer member has a hollow inside, and a desiccant such as silica gel may be added thereto.

  By using such spacer materials 250a to 250d, when the glass substrates 210 and 220 are laminated, a space 230 that is a sealed space can be formed between them. Further, the display device 270 can be accommodated in the space portion 230.

  In addition, as a joining method of the spacer materials 250a to 250d, the first glass substrate 210, and the second glass substrate 220, for example, after bonding with an adhesive having a high sealing property for keeping airtightness, the bonding strength is further increased. It can be firmly fixed with a high adhesive. Through the above steps, the second vehicle display device 200 can be manufactured.

(Embodiment 1 of multi-layer glass structure)
FIG. 8 is a front view schematically showing the configuration of the display device for a vehicle according to Embodiment 1 of the multilayer glass structure in the present embodiment. FIG. 9 is a longitudinal sectional view taken along line VIII-VIII in FIG.

  Here, the wiring structure of each cable connected to the display devices 470a to 470c will be described. Except for the wiring structure of each cable, the description is omitted because it is the same as the first and second vehicle display devices described above. As an example, Embodiment 3 of a multi-layer glass structure and a method for manufacturing the same will be described with reference to the third vehicle display device 400 shown in FIG.

  As shown in FIGS. 8 and 9, the third vehicular display device 400 includes a first glass substrate 410, a second glass substrate 420, a first glass substrate 410, and a second glass substrate 420. It consists of the multilayer glass structure 440 which has the space part 430 provided between these. Each of the display devices 470a to 470c includes a display device formed in a panel shape.

(About the first spacer material)
The gaps on the four sides between the first glass substrate 410 and the second glass substrate 420 whose glass surfaces face each other are formed by the first spacer members 450a to 450d having a total length corresponding to the length of each of the four sides. The Further, the gaps at the corners of the multilayer glass structure are formed by the second spacer materials 460a to 460d arranged at the corners where the end portions of the first spacer materials 450a to 450d attached to the four sides are orthogonal. The In FIG. 9, only the first spacer material 450a attached to the upper ends of the first glass substrate 410 and the second glass substrate 420 is shown, but other spacer materials 450b to 450d other than the upper end are shown. The shape and the mounting structure are the same. A desiccant may be inserted into the first spacer members 450a to 450d.

  As shown in FIG. 9, for example, the first spacer members 450 a to 450 d are formed by bending an aluminum alloy, and a first cable insertion passage 452 through which the cable 480 is inserted extends in the longitudinal direction. ing. In addition, the first spacer members 450a to 450d have slits 454 formed inside the space 430. The slit 454 is a communication path that connects the internal first cable insertion path 452 and the space 430. Note that the first cable insertion passage 452 and the slit 454 are also used as a gas supply passage for supplying dry gas to the space portion 430 after assembly is completed.

  The slits 454 are formed in a straight line shape corresponding to the lengths of the four sides of the first glass substrate 410 and the second glass substrate 420, and are outside the cables 480 connected to the display devices 470a to 470c. It is formed wider than the diameter.

  The first spacer members 450 a to 450 d are provided on the first surface 412 on the inner side of the first glass substrate 410 and the third surface 422 on the inner side of the second glass substrate 420. 490 is adhered. For the first adhesive layer 490, for example, an adhesive made of butyl rubber having a high sealing property is used in order to ensure airtightness.

  In addition, in the recesses formed between the outer peripheral surfaces of the first spacer members 450a to 450d and the outer peripheral edge portions 416 and 426 of the first surface 412 inside the pair of first glass substrates 410, A second adhesive layer 495 having high adhesive strength is formed. As the second adhesive layer 495, for example, a silicon-based adhesive having high rigidity is used.

(About the second spacer material)
FIG. 10 is a longitudinal sectional view of portion A in FIG. 8 as viewed from the front. Since the second spacer members 460a to 460d have the same configuration, only the second spacer member 460a is shown in FIG.

  As shown in FIG. 10, the second spacer material 460a is, for example, between the end of the first spacer material 450a attached to the upper side and the end of the first spacer material 450b attached to the left side. Intervene in. The second spacer member 460a is formed in an L shape, and has a main body 462 positioned at a corner, a first arm 464 extending in the horizontal direction (X direction) from the main body 262, and a main body. 262 and a second arm portion 466 extending in the hanging direction (Y direction).

  The main body 462 is accommodated in a corner space 500 formed between the end portion of the first spacer member 450a and the end portion of the first spacer member 450b, and penetrates in an inclined direction of 45 ° with respect to the horizontal. A second cable insertion path 463 is provided. The first arm portion 464 is inserted into the first cable insertion path 452 of the first spacer member 450a attached to the upper side. The second arm portion 466 is inserted into the first cable insertion path 452 of the first spacer member 450b attached to the left side.

  As described above, the second spacer member 460a is held by the first spacer members 450a and 450b via the first arm portion 464 and the second arm portion 466.

The second cable insertion passage 463 is also used as a gas supply passage for supplying dry gas to the space portion 430 after the assembly is completed, like the first cable insertion passage 452 and the slit 454 described above. Finally, the second adhesive layer 495 is filled with an adhesive made of the same material or the like without any gaps.
In this manner, most of the cables 480 from the display devices 470a to 470c are drawn out through the insides of the first spacer material 450a and the second spacer material 460a, so that the first glass substrate 410 and the second glass substrate 410 It cannot be visually recognized from the front (inside the vehicle) and the back (outside) of the glass substrate 420. Therefore, the appearance is improved, the surrounding devices can be prevented from coming into contact with the cable 480, and disconnection of the cable 480 can be prevented.

(Embodiment 2 of a multilayer glass structure)
FIG. 11: is the front view which showed typically the structure of the display apparatus for refrigeration / freezing apparatus by Embodiment 2 of a multilayer glass structure. As shown in FIG. 11, the refrigeration / freezing apparatus 600 is a refrigeration and / or refrigeration showcase having a refrigeration and / or refrigeration function, and includes a showcase body 610. The showcase body 610 is provided with means (not shown) for cooling the internal space (internal space).

  In addition, the refrigeration / freezing apparatus 600 includes a double glass door 620 that can be opened and closed. Double glass door 620 includes a multilayer glass structure 630 and a frame member (sash) 640 that holds the peripheral edge of multilayer glass structure 630. The double glass door 620 is provided on the front surface of the showcase main body 610, and the interior space of the showcase main body 610 can be viewed from the outside through the multilayer glass structure 630 of the double glass door 620.

  The multi-layer glass structure 630 is a display device for a refrigeration / refrigeration apparatus in which a display device 470 is attached in the vicinity of the upper side between a pair of glass substrates. For example, the display device 470 is housed in a cabinet of a showcase body 610. The displayed product list (for example, beverage, refrigerated food, frozen food, etc.) is displayed as an image. Further, the display device 470 may display not only the article list but also information (including moving images) such as product advertisements or expiration dates, amounts, and components for each product.

  The multilayer glass structure 630 includes the first glass substrate 410, the second glass substrate 420, and between the first glass substrate 410 and the second glass substrate 420 as in the first embodiment. And a space portion 430 provided in the space.

  The four side gaps between the first glass substrate 410 and the second glass substrate 420 are formed by first spacer materials 450a to 450d having a total length corresponding to the length of each of the four sides. Further, the corner gaps are formed by the second spacer materials 460a to 460d arranged at the corners where the end portions of the first spacer materials 450a to 450d attached to the four sides are orthogonal.

  Therefore, also in the case of the multilayer glass structure 630, as in the first embodiment, most of each cable 480 from the display device 470 is exposed to the outside through the inside of the first spacer material 450a and the second spacer material 460a. Since it is pulled out, it cannot be visually recognized from the front (outside) and back (inside) of the first glass substrate 410 and the second glass substrate 420. Therefore, the appearance is improved, the surrounding devices can be prevented from coming into contact with the cable 480, and disconnection of the cable 480 can be prevented.

  According to the present embodiment, it is possible to wire the cable connected to the display device so as not to be exposed to the inside and outside of the glass substrate, the appearance is improved, and the cable is connected to surrounding devices and others. Therefore, it is possible to prevent the cable from being disconnected.

  This embodiment can be used, for example, in railcar windows, airplane windows, automobile windows, and building window glass, glass doors of refrigeration / freezing devices that cool the internal temperature significantly compared to the external temperature, and cold regions. It can be applied to a multi-layer glass structure such as a window or a door of a facility having a large temperature difference such as heating.

  The preferred embodiments and examples of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments and examples described above, and is based on the gist of the present invention described in the claims. Various modifications and changes can be made within the range.

  This international application claims priority based on Japanese Patent Application No. 2013-091136 filed on April 24, 2013, the entire contents of which are incorporated herein by reference.

DESCRIPTION OF SYMBOLS 100 1st display apparatus for vehicles 102 Upper side 110 1st glass substrate 112 1st surface 114 2nd surface 120 2nd glass substrate 122 3rd surface 124 4th surface 130 Space part 140 Functional film 150 Spacer Material 170 Display device 200 Second vehicle display device 210 First glass substrate 212 First surface 214 Second surface 220 Second glass substrate 222 Third surface 224 Fourth surface 230 Space 240 Functional film 250, 250a to 250d Spacer material 270 Display device 275 Opaque member 400 Third vehicle display device 401 Railway vehicle cabin 405 Frame member 410 First glass substrate 416, 426 Outer peripheral edge 420 Second glass substrate 430 Space 440 Multi-layer glass structure 450a to 450d First spacer material 452 First 1 cable insertion path 454 Slit 460a to 460d Second spacer material 462 Main body 463 Second cable insertion path 464 First arm portion 466 Second arm portion 470, 470a, 470b, 470c Display device 480 Cable 490 First Adhesive layer 495 Second adhesive layer 600 Refrigeration / freezing device 610 Showcase body 620 Double glass door 630 Multi-layer glass structure 640 Frame material (sash)

Claims (9)

A first glass substrate and a second glass substrate arranged to face each other,
A spacer material disposed at an outer peripheral edge of the first glass substrate and the second glass substrate to form a space of a predetermined dimension between the first glass substrate and the second glass substrate;
In the space, a display device disposed close to one side of the outer peripheral edge of the first glass substrate and the second glass substrate;
A cable connected to the display device;
Including
A multilayer glass structure, wherein the spacer material is provided with an insertion path for the cable. The first glass substrate and the second glass substrate have a rectangular shape,
The spacer material is
A first spacer material disposed on each outer peripheral edge of each of the four sides of the first glass substrate and the second glass substrate;
A second spacer material disposed at each corner of the first glass substrate and the second glass substrate;
The multilayer glass structure according to claim 1, comprising: The insertion path of the cable is
A first cable insertion path formed inside a first spacer material located on the one side of the first glass substrate and the second glass substrate;
It is formed inside the second spacer member connected to the first spacer member located on the one side, and communicates the end of the first cable insertion path and the external space of the second spacer member. A second cable insertion path that penetrates the second spacer material,
The multilayer glass structure according to claim 2, comprising:   The one end of the cable is inserted into the first cable insertion path and connected to the display device, and the other end is inserted into the second cable insertion path and pulled out to the outside. 3. The multilayer glass structure according to 3.   The multilayer glass structure according to any one of claims 1 to 4, wherein the insertion path of the cable is a path for replacing the air in the space with a dry gas.   The multilayer glass structure according to any one of claims 1 to 5, wherein the display device is any one of a liquid crystal display device, a plasma display device, and an organic EL display device.   The one side of the outer peripheral edge portion of the first glass substrate and the second glass substrate on which the display device is disposed in proximity is located on the upper side in the display direction of the display device. The multilayer glass structure according to any one of 6. A vehicle display device using the multilayer glass structure according to any one of claims 1 to 7,
A display device for a vehicle, which displays information related to vehicle travel on a display device arranged between a pair of glass substrates. A display device for a refrigerator / freezer using the multilayer glass structure according to any one of claims 1 to 7,
A display device for a refrigeration / freezing apparatus, wherein information relating to a refrigerated / frozen article is displayed on a display device disposed between a pair of glass substrates.

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