WO2014175193A1

WO2014175193A1 - Multilayer glass with display, glass door for showcase and showcase

Info

Publication number: WO2014175193A1
Application number: PCT/JP2014/061083
Authority: WO
Inventors: 龍弥白河; 宏嘉末木; 浩和椿; 新山　聡; 建郎馬場
Original assignee: 旭硝子株式会社
Priority date: 2013-04-25
Filing date: 2014-04-18
Publication date: 2014-10-30
Also published as: JPWO2014175193A1; TW201500024A; JP6443331B2

Abstract

[Problem] To provide a multilayer glass with a display that protects a transparent display, and provides excellent visibility of images displayed on the transparent display, and the back of the transparent display. [Solution] A multilayer glass with a display has: a multilayer glass provided with a plurality of glass sheets (11, 12) superimposed on each other with spacers (17), which are disposed at the peripheral edges, therebetween, and a hollow layer (25) formed between the plurality of glass sheets; and a transparent display (70) disposed on a surface facing the hollow layer of at least one glass sheet of the plurality of glass sheets.

Description

Multi-layer glass with display, glass door for showcase and showcase

The present invention relates to a multilayer glass with a display, a glass door for a showcase, and a showcase.

Transparent glass doors are provided on the front to allow viewing of products displayed on the shelves inside, and showcases that allow consumers to select and take out products through the glass doors are used in stores, etc. Yes.

Some showcases are provided with a transparent display on the front glass door for displaying an image or the like for advertising a product (for example, see Patent Document 1). In such a showcase, the image displayed on the transparent display and the displayed product are seen to overlap with each other from the consumer, and the consumer's willingness to purchase can be increased by the displayed still image or video. .

JP 2003-125904 A

However, in the configuration in which the transparent display is provided on the outer surface or the inner surface of the glass door of the showcase, the transparent display may be damaged or broken by contact with people or products when the glass door is opened or closed.

Further, in the case of a showcase displaying beverages or frozen foods that are refrigerated inside, the surface of the glass door or the transparent display is dewed and clouded, and the display image on the transparent display and the visibility inside the showcase are reduced. there is a possibility.

The present invention has been made in view of the above, and protects a transparent display, and is a multi-layer glass with a display excellent in visibility of a display image on the transparent display and behind the transparent display, a glass door for a showcase, and a showcase The purpose is to provide.

According to the multilayer glass with a display of one embodiment of the present invention, the plurality of glass plates including a plurality of glass plates stacked with a spacer provided at a peripheral edge and a hollow layer formed between the plurality of glass plates; A transparent display provided on a surface facing the hollow layer of at least one of the glass plates.

Further, a glass door for a showcase according to one embodiment of the present invention includes the above-described double-glazed glass with a display and a sash that covers the periphery of the double-glazed glass.

Moreover, the showcase of one embodiment of the present invention includes the glass door for the showcase.

According to the embodiment of the present invention, as a result of intensive studies on the position where the transparent display should be arranged, the transparent display is protected, and a display with a display having excellent visibility in the transparent display and behind the transparent display is provided. Layer glass, glass doors for showcases and showcases can be provided.

It is a figure which illustrates the showcase which concerns on embodiment. It is a front view which illustrates the glass door of the showcase which concerns on embodiment. It is a section schematic diagram (1) which illustrates the glass door of the showcase concerning an embodiment. It is a figure which expands and illustrates the glass door cross section of the showcase which concerns on embodiment. It is a cross-sectional schematic diagram (2) which illustrates the glass door of the showcase which concerns on embodiment.

Hereinafter, embodiments for carrying out the invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and redundant description may be omitted.

<Showcase>
First, the configuration of the showcase 100 according to the embodiment will be described with reference to FIG. In the drawings shown below, the X direction indicates the width direction of the showcase 100, the Y direction indicates the depth direction, and the Z direction indicates the height direction.

The showcase 100 has a glass door 10 on the front surface and a shelf 30 on the inside of which products 50 such as beverages are displayed. The showcase 100 according to the present embodiment has a refrigeration function or a freezing function, and keeps the displayed products 50 cold.

The glass door 10 is made of transparent glass on almost the entire surface so that the product 50 can be seen from the outside. The glass door 10 is provided so as to be openable and closable by, for example, a sliding door type or a double door type, and the consumer can select the product 50 through the glass door 10 and open the glass door 10 to take out the product. In addition, the number of the glass doors 10 provided in the showcase 100 may be one or a plurality of two or more.

The glass door 10 has a transparent display 70 for displaying images and the like. The transparent display 70 is provided on a part or the entire surface of the glass door 10 and displays images such as still images and moving images. The transparent display 70 is a transmissive display device, and the consumer can see the merchandise 50 displayed through the image displayed on the transparent display 70.

<Glass door>
Next, the structure of the glass door 10 which concerns on embodiment is demonstrated.

FIG. 2 is a front view illustrating the glass door 10 according to the embodiment. FIG. 3 is a schematic view illustrating the A-A ′ cross section of FIG. 2.

The glass door 10 includes a glass plate 11 on the outer side of the showcase 100, a multi-layer glass including the glass plate 12 on the inner side, a sash 15 covering the periphery of the multi-layer glass, and a transparent display 70.

(Multilayer glass)
As shown in FIG. 3, the multilayer glass is composed of two

glass plates

11 and 12 that are stacked with a spacer 17 provided on the periphery. As shown in FIG. 3, a hollow layer 25 is formed between the glass plate 11 and the glass plate 12 stacked with the spacer 17 interposed therebetween. The hollow layer 25 is hermetically sealed by being surrounded by a spacer 17 and is isolated from the external environment. The hollow layer 25 is filled with, for example, air or an inert gas. The thickness of the glass plate is usually about 2 to 6 mm. The thickness of the glass plate can be exemplified by 1 to 6 mm. An example of the thickness of the hollow layer is 6 to 25 mm.

The

glass plates

11 and 12 may be made of, for example, soda lime glass, aluminosilicate glass, aluminoborosilicate glass, non-alkali glass, or organic glass, but is not limited thereto. Moreover, the glass plate 11 and / or the glass plate 12 may be subjected to a chemical strengthening process or a physical strengthening process.

By performing such a surface strengthening treatment on the glass plate, the strength of the glass plate is improved, and the thickness of the glass plate 11 can be made thinner. Moreover, the

glass plates

11 and 12 may be laminated glass in which a plurality of glasses are bonded via an intermediate film.

(sash)
The sash 15 is formed using, for example, a metal material, a resin material, or the like, and sandwiches and fixes the peripheral portions of a plurality of glass plates as shown in FIGS. The sash 15 may have, for example, a rail for opening and closing along the X direction of the showcase 100, a hinge part for opening and closing in the Y direction, a handle for opening and closing the glass door 10, and the like.

(Transparent display)
The transparent display 70 is a transmissive display such as a liquid crystal display device or an organic EL display. The transparent display 70 is not limited to the above example as long as it is a transmissive display. The liquid crystal display device may include a dispersive liquid crystal display element (as an example, manufactured by Asahi Glass Co., Ltd .: Transmart), or may have a structure including a light guide plate on the back of the liquid crystal substrate. . In addition, the transparent display 70 may be provided with a plurality of the same type or different types of the glass door 10. For example, by using a plurality of transparent displays 70 and disposing the transparent display 70 for each product in the showcase 100, different information can be displayed for each product. The visible light transmittance in the non-display state of the transparent display 70 is preferably 15 to 30%.

As shown in FIG. 3, the transparent display 70 is provided on the surface facing the hollow layer 25 of at least one glass plate among the plurality of glass plates. The transparent display 70 is bonded and fixed to one of the surfaces of the

glass plates

11 and 12, and is provided on the surface of the glass plate 11 on the outer side of the showcase 100 on the hollow layer 25 side with the display surface facing outside. It is preferable. With such a configuration, the number of interfaces from the consumer side to the transparent display 70 can be reduced, and an image displayed on the transparent display 70 can be seen more clearly through the glass plate 11.

The transparent display 70 displays, for example, images such as still images and moving images that advertise advertisements such as the product 50 displayed inside. The image displayed on the transparent display 70 is, for example, an image stored in a storage device (not shown) or an image transmitted from a server or the like connected via a network.

Since the transparent display 70 is a transmissive display device, the consumer is displayed on the shelf 30 behind the image displayed on the transparent display 70 while the image is displayed on the transparent display 70. Product 50 can be viewed. In other words, while the image is displayed on the transparent display 70, the consumer sees the image displayed on the transparent display 70 and the commodity 50 behind the image.

The transparent display 70 can be provided on a part or substantially the entire surface of the glass door 10, but as shown in FIG. 2, the entire surface of the transparent display 70 is located between the inner and outer peripheral edges of the sash 15. It is preferable to be provided. With such a configuration, the outer peripheral edge of the transparent display 70 is not exposed to the outside, and the aesthetic appearance of the glass door 10 can be maintained. Further, as shown in FIG. 4, the transparent display 70 preferably has an outer periphery interposed between the spacer 17 and the glass plate 11. With such a configuration, the adhesion of the transparent display 70 to the glass plate 11 can be further improved. In addition to the example shown in FIG. 4, the outer periphery of the transparent display 70 may reach the outer periphery of the glass plate 11.

(Join between glass plate and transparent display)
The transparent display 70 is attached to the glass plate 11 using, for example, a transparent adhesive or a transparent pressure-sensitive adhesive (collectively referred to as a transparent adhesive), a transparent adhesive, or a pressure-sensitive adhesive tape. The transparent adhesive and the pressure-sensitive adhesive tape may be applied or attached to the entire surface of the transparent display 70, or may be applied or attached to a part of the peripheral edge or the like. When the transparent adhesive and the adhesive tape are applied or pasted on the entire surface of the transparent display 70, the air gap is eliminated between the glass plate 11 and the transparent display 70, so that the display image becomes clear. As the transparent adhesive, for example, a transparent resin or a liquid curable resin composition can be used. In addition, illustration of these transparent adhesives is omitted.

When a curable resin composition is used, an uncured resin composition is applied to the surface of the glass plate 11 on the hollow layer 25 side, a transparent display 70 is disposed thereon, and then the resin composition is cured. Thus, the glass plate 11 and the transparent display 70 can be joined.

The transparent adhesive preferably has a shear 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 void that may be generated when the glass plate 11 and the display device 170 are joined is relatively easily lost. be able to.

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 large, the thickness can be kept uniform throughout the transparent adhesive. When the glass plate 11 and the display device 170 are joined, the transparent display 70 is maintained. And voids are less likely to occur at the interface between the transparent adhesive 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. The transparent adhesive exhibits good adhesion in joining the glass plate 11 and the transparent display 70 when the shear elastic modulus is 10 ⁷ Pa or less.

The thickness of the transparent adhesive is preferably 0.03 mm to 2 mm, 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 glass plate 11, the transparent adhesive can reduce the impact due to the external force and protect the transparent display 70. It becomes. In addition, even if a foreign material having a dimension less than the thickness of the transparent adhesive is mixed between the glass plate 11 and the transparent display 70, the thickness of the transparent adhesive does not change. The influence can be suppressed. Moreover, it can suppress that the transparent display 70 part becomes thick too much by a transparent adhesive by making the thickness of a transparent adhesive into 2 mm or less.

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 wetting agent is formed from the liquid curable resin composition on the glass plate 11, the weir-like portion suppresses the curable resin composition from spreading outside beyond a predetermined range. (That is, blocking outflow of the liquid curable resin composition for the layered portion). The weir-like portion may be configured by curing a curable resin composition different from the curable resin composition constituting the layered portion of the central portion.

(Functional membrane)
The glass plate 11 or the glass plate 12 may be provided with a low radiation film 24 as a functional film at least partially. The low radiation film 24 is preferably provided on the surface on the hollow layer 25 side of the glass plate 12 inside the showcase 100 cabinet in order to enhance the heat insulation effect.

The low radiation film 24 is preferably composed of a thin film, and is a film in which a film mainly composed of silver is sandwiched between oxide thin films mainly composed of zinc (zinc oxide / silver / Those composed of zinc oxide) are preferred. In order to lower the emissivity, it is more preferable to double the laminated film (zinc oxide / silver / zinc oxide / silver / zinc oxide). According to such a laminated film, since the transmittance is high and the radiation is low, the visibility inside the showcase 100 is maintained and the heat insulation performance is also suitably maintained.

Further, an antireflection film may be provided on the outer surface of the glass plate 11 on the outer side of the showcase 100. The antireflection film is formed directly on the outer surface of the glass plate 11 by sputtering or vapor deposition, for example, with a thin film of silicate or metal oxide having a predetermined thickness. Alternatively, the antireflection film is formed by laminating a resin thin film having a low refractive index such as a fluororesin to the outer surface of the glass plate 11 through an adhesive layer or the like. In particular, those having a fluororesin in the outermost layer are preferable because they can impart antifouling performance and easy cleanliness.

By providing an antireflection film on the outer surface of the glass plate 11, reflection can be suppressed and an image displayed on the transparent display 70 from the outside can be seen more clearly.

(Spacer)
FIG. 4 is a diagram illustrating the glass door 10 according to the embodiment, and is an enlarged view of one end side of the AA ′ cross section of FIG.

As shown in FIG. 4, the spacer 17 is formed of a metal material mainly made of aluminum, for example, so as to have a hollow inside, and stores therein a desiccant 18 such as silica gel. A through hole 19 is provided on the surface of the spacer 17 on the hollow layer 25 side, and moisture present in the hollow layer 25 is absorbed by the desiccant 18 through the through hole 19.

The hollow layer 25 between the glass plate 11 and the glass plate 12 is surrounded by the spacer 17 and is further sealed by the primary sealing material 20 and the secondary sealing material 21.

As the primary sealing material 20, for example, butyl rubber which is not subjected to crosslinking treatment or a material containing a filler such as carbon black based on polyisobutylene for the purpose of coloring and reinforcement is used. As the secondary sealing material 21, for example, a material based on a curable elastomer such as polysulfide, silicone, urethane, or the like, which has been appropriately modified to develop adhesiveness with glass, or the like is used.

As the spacer, in addition to the embodiment shown in FIG. 4, a resin spacer kneaded with a desiccant that itself has hermeticity and adhesion to glass can be used. Further, a part of the entire circumference of the multilayer glass can be constituted by a resin spacer, and a part can be constituted by a spacer as shown in FIG. 4 using primary and secondary seals.

Here, as shown in FIG. 4, the transparent display 70 is preferably provided so that the peripheral edge is sandwiched between the spacer 17 and the glass plate 11. With such a configuration, it is possible to maintain a stronger bond between the transparent display 70 and the glass plate 11.

The glass door 10 may be composed of three or more glass plates. FIG. 5 illustrates a schematic cross-sectional view of a glass door 10 that includes three

glass plates

11, 12, and 13.

The glass door 10 shown in FIG. 5 is provided with a glass plate 11, a glass plate 12, and a glass plate 13 which are stacked with spacers 17 in order from the outside of the showcase 100. A spacer 17 is provided between the glass plate 11 and the glass plate 12, and a hollow layer 25 is formed. Similarly, a spacer 17 is provided between the glass plate 12 and the glass plate 13 to form a hollow layer 26.

In such a configuration, the transparent display 70 may be provided on either of the

hollow layers

25 and 26, but is preferably provided on the surface of the glass plate 11 on the outermost side of the showcase 100 on the side of the hollow layer 25. . Even when the glass door 10 is composed of four or more glass plates, it is preferable that the glass door 10 is similarly provided on the surface on the hollow layer side of the outermost glass plate of the showcase 100. With such a configuration, the visibility of the image displayed on the transparent display 70 from the outside can be ensured.

Moreover, the low radiation film | membrane 24 may be provided in any area | region among the

glass plates

11, 12, and 13, and it is provided in the surface at the side of the hollow layer 26 of the glass plate 13 inside the showcase 100 inside. preferable. Even when the glass door 10 is composed of four or more glass plates, the low radiation film 24 is similarly provided on the surface of the glass plate 13 on the innermost side of the showcase 100 on the hollow layer 26 side. It is preferable. With such a configuration, the heat insulating effect of the glass door 10 can be enhanced.

As described above, the glass door 10 provided in the showcase 100 according to the present embodiment is provided with the transparent display 70 in a hollow layer formed between a plurality of glass plates. By providing the transparent display 70 in the hollow layer, the transparent display 70 does not come into contact with a person or a product when the glass door 10 is opened or closed, and the occurrence of breakage or failure is reduced. Further, the glass door 10 and the glass door 10 having excellent visibility of a display image on the transparent display 70 and a product inside the showcase are not formed when the surface of the transparent display 70 is dewed and clouded when the glass door 10 is opened and closed. A showcase 100 having the same can be provided.

In addition, although the example which has a refrigeration function or a freezing function was demonstrated as the showcase 100 which concerns on this embodiment, the refrigeration function or the freezing function may not be provided. Moreover, although the example which used the multilayer glass with a display for the glass door 10 provided in the showcase 100 was demonstrated, the window etc. of a building, a vehicle, etc. may be sufficient, for example. In this case as well, the transparent display can be provided on a part or almost the entire surface of the glass plate, but the outer periphery is preferably interposed between the spacer and the glass plate. With such a configuration, the adhesion of the transparent display to the glass plate can be further improved.

As mentioned above, although the multilayer glass with a display and showcase which concern on embodiment were demonstrated, this invention is not limited to the said embodiment, A various deformation | transformation and improvement are possible within the scope of the present invention.

This international application claims priority based on Japanese Patent Application No. 2013-092805 filed on April 25, 2013. The entire contents of Japanese Patent Application No. 2013-092805 are incorporated herein by reference. Incorporate.

10

Glass door

11, 12, 13 Glass plate 15 Sash 17 Spacer 24

Low radiation film

25, 26 Hollow layer 70 Transparent display 100 Showcase

Claims

A plurality of glass plates stacked on both sides of a spacer provided on the periphery, and a hollow glass formed between the plurality of glass plates, and a multilayer glass comprising:
A transparent display provided on a surface facing the hollow layer of at least one glass plate of the plurality of glass plates;
A multilayer glass with a display, characterized by comprising:
2. The display according to claim 1, wherein the transparent display has a display surface arranged on the surface of the viewer side glass plate among the plurality of glass plates on the hollow layer side via an adhesive. Double layer glass.
The multilayer glass with a display according to claim 2, wherein the adhesive has a shear elastic modulus at 25 ° C of 10 3 Pa to 10 7 Pa.
The said transparent display has a magnitude | size which covers the substantially whole surface of the said glass plate, The multilayer glass with a display as described in any one of Claim 1 to 3 characterized by the above-mentioned.
The multilayer glass with a display according to claim 4, wherein an outer peripheral edge of the transparent display is disposed between the spacer and the glass plate.
A multilayer glass with a display according to claim 1;
A sash covering the periphery of the multilayer glass;
A glass door for a showcase, characterized by comprising:
The glass for a showcase according to claim 6, wherein the transparent display is provided with a display surface on the surface on the hollow layer side of the outside glass plate among the plurality of glass plates via an adhesive. door.
The glass door for a showcase according to claim 6 or 7, further comprising a low radiation film on a surface of the inner glass plate on the hollow layer side of the plurality of glass plates.
The plurality of glass plates are composed of a first glass plate and a second glass plate,
The transparent display is provided on the surface of the first glass plate on the hollow layer side,
The glass door for a showcase according to claim 8, wherein the low radiation film is provided on a surface of the second glass plate on the hollow layer side.
The glass door for a showcase according to any one of claims 6 to 9, wherein the transparent display has a size covering substantially the entire surface of the glass plate.
The glass door for a showcase according to claim 10, wherein the outer peripheral edge of the transparent display is arranged on the outer periphery rather than the inner peripheral edge of the sash.
12. The glass door for a showcase according to claim 11, wherein an outer peripheral edge of the transparent display is disposed between the spacer and the glass plate.
A showcase comprising the showcase glass door according to any one of claims 6 to 12.