JPWO2016121591A1 - Building material glass plate with display device and building material glass structure - Google Patents

Abstract

It is an object of the present invention to provide a building material glass plate with a display device and a building material glass structure in which the visibility of the display surface of the display device is less likely to deteriorate due to a reflection image on the glass surface. The building material glass plate (10) attached to the building in a vertical state and the display device (30) are bonded via a bonding material, and the visible light reflectance of the building material glass plate (10) is 8%. A building material glass plate with a display device (100), characterized in that:

Description

  The present invention relates to a building material glass plate with a display device and a building material glass structure.

  For example, a window glass with a display device in which a display device such as a liquid crystal display is attached to the window glass is known (see, for example, Patent Document 1).

JP 2006-132206 A

  In the above-described window glass with a display device, the display device is attached to the entire surface of the window glass. In order to visually recognize the inside and outside of the window glass, it is desirable that the display device is attached to a part of the window glass.

  On the other hand, when the display surface of the display device faces the outside through the window glass, the reflected image on the glass surface as viewed from the outside reduces the visibility of the display image of the display device. In particular, the reflection image becomes more conspicuous because there are a portion where the display device is not attached and a portion where the display device is attached on the entire surface of the window glass. This tendency becomes more prominent when a plurality of window glasses are connected to a building, and when the window glass to which the display device is attached and the window glass to which the display device is not attached are adjacent to each other.

  The present invention has been made in view of the above, and provides a building material glass plate with a display device and a building material glass structure in which the visibility of the display surface of the display device is less likely to deteriorate due to a reflection image on the glass surface. Objective.

The building material glass plate with a display device of the present invention includes a building material glass plate attached to a building in a vertical state, a display device, and a bonding material for bonding the building material glass plate and the display device, and the building material glass It is a building material glass plate with a display device, wherein the display surface of the display device is bonded to the plate via the bonding material, and the display surface of the display device is one of the entire surfaces of the building material glass plate. Visible light reflection of the building material glass plate of the portion that is bonded to the display device, measured from the surface of the side that is bonded to the part through the bonding material and not bonded to the display device The rate is 8% or less.
The building material glass structure of the present invention is a building material glass structure in which the building material glass plate with a display device and a second building material glass plate to which no display device is attached are arranged adjacent to each other. The difference (Rg−Rd) between the visible light reflectance Rg of the building material glass plate 2 and the visible light reflectance Rd of the building material glass plate in the building material glass plate with a display device is 2% or more.

  According to the building material glass plate with a display device and the building material glass structure of the present invention, it is possible to reduce a reduction in the visibility of the display surface of the display device due to the reflected image on the glass surface.

It is a figure which illustrates the building material glass plate with a display apparatus in embodiment. FIG. 2 is a schematic cross-sectional view taken along line AA in FIG. 1. It is a front view which illustrates the building material glass structure in embodiment.

Hereinafter, embodiments of the present 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.
In this specification, as shown in FIGS. 1-3, the surface by which the display apparatus 30 of the building material glass plate 10 is arrange | positioned is called one surface of the building material glass plate 10, and the display apparatus 30 of the building material glass plate 10 is shown. The surface that is not installed is called the other surface of the building material glass plate 10. The X direction is the horizontal direction in the installed state of the building material glass plate 100 with a display device, the Y direction is the vertical direction in the installed state, and the Z direction is the thickness direction.
In FIG. 1, one surface of the building material glass plate 10 is denoted as S1, and the other surface of the building material glass plate 10 is denoted as S2.

(Building glass plate with display device)
FIG. 1 is a diagram illustrating a building material glass plate 100 with a display device in an embodiment, and FIG. 2 is a schematic cross-sectional view taken along the line AA in FIG. FIG. 3 is a front view illustrating a state in which the building material glass plate 100 with a display device is installed together with two second building material glass plates, that is, a building material glass structure.

As shown in FIGS. 1 and 2, the building material glass plate 100 with a display device is configured such that a display device 30 having an area smaller than the area of the building material glass plate 10 is opposed to one surface S1 of the building material glass plate 10 in a front view. Yes. And in this embodiment, the building material glass plate 10 and the display apparatus 30 are bonded via the transparent bonding material 12. FIG. Moreover, it is preferable that the light-shielding part 20 is provided in the area | region corresponding to the periphery of the display apparatus 30 of one surface of the building material glass plate 10. FIG.
In the above-described example, the building material glass plate 10 has a rectangular shape in front view, and the contour shape of the display surface of the display device 30 has a rectangular shape in front view.

  As shown in FIG. 1, the building material glass plate 100 with a display device includes wiring 51 for supplying power to the display device 30 and / or transmitting and / or receiving data. The wiring 51 is connected to the display device 30 and protrudes from the display device 30. The wiring 51 protruding from the display device 30 is disposed along a surface of the building material glass plate 10 in a region where the display device 30 is not opposed. Moreover, it is preferable that the wiring 51 is covered with the molding 50 at least on one surface side of the building material glass plate 10.

As will be described later, the building material glass plate 10 can be exemplified by those used in buildings in which the front and back surfaces of a building window glass, a building door glass, a partition and the like are arranged in a vertical state. In this case, the display device 30 is preferably disposed above the center in the vertical direction of the building material glass plate 10 because the display image of the display device 30 can be easily seen from a position away from the display device 30.
In the present invention, the building material glass plate attached to the building in a vertical state means a building material glass plate that is widely attached in the vertical direction, including the vertical direction and the substantially vertical direction of the building.

(Building material glass plate)
Examples of the material of the building glass plate 10 include inorganic glass such as soda lime glass, aluminosilicate glass, aluminoborosilicate glass, or alkali-free glass, or organic glass made of polycarbonate resin, acrylic resin, or the like. Furthermore, the building material glass plate 10 may be a laminated glass in which a plurality of the above-described inorganic glass or organic glass are bonded together, or a laminated glass in which inorganic glass and organic glass are bonded together. Moreover, the multilayer glass which consists of inorganic glass or organic glass may be sufficient.
When the building material glass plate 10 is inorganic glass, for example, a strengthening process such as a chemical strengthening process or a physical strengthening process may be performed.

  A functional film may be provided on the other surface S2 of the building material glass plate 10. Examples of the functional film include an antireflection film in which a silicate or metal oxide thin film or a similar thin film is formed. The antireflection film can be directly formed on the surface of the building glass plate 10 by, for example, a sputtering method, a vapor deposition method, a wet coating method, or the like. Alternatively, the antireflection film can be indirectly formed on the other surface of the building material glass plate 10 by attaching the film on which the antireflection film described above is formed to the building material glass plate 10. When an antireflection film is provided on the building material glass plate 10, reflection of external light on the building material glass plate 10 is suppressed, and an image displayed on the display device 30 can be seen more clearly from the outside.

The functional film may be a functional film having functions such as antifouling, water repellency or oil repellency. It is preferable to provide these films because the building glass plate 10 can be imparted with antifouling performance and easy cleanliness. The functional film such as antifouling, water repellent or oil repellent can be formed on the other surface of the building material glass plate 10 by, for example, a resin thin film such as fluororesin or silicone resin by vapor deposition or via an adhesive layer or the like.
In addition, you may provide the said functional film in one surface S1 of the said building material glass plate 10 as needed.

  In addition, although the building material glass plate 10 in this embodiment uses the rectangle by the front view, the shape of the building material glass plate 10 can use arbitrary shapes other than a rectangle.

  The building material glass plate 10 itself is a structural body, and examples thereof include glass plates for architectural windows, doors, curtain wall glass plates, partitions, partitions, signboards, showcase doors, train platform doors, and the like. . In this manner, information displayed on the display device in these parts can be provided to the public or the like.

The visible light reflectance of the building material glass plate 10 is 8% or less, preferably 5% or less, more preferably 2% or less. The visible light reflectance here refers to the visible light reflectance in the portion 10a to which the display device is bonded, measured from the surface on the outdoor side of the building material glass plate 10, that is, the other surface S2 of the building material glass plate 10. The visible light reflectance is measured according to JIS R3106.
The display surface of the display device 30 is bonded to a part of the entire surface S1 of the building material glass plate 10 via the transparent bonding material 12. Thereby, the reflected image of the building material glass plate 10 in the portion 10a where the display device 30 of the building material glass plate 10 is bonded is reduced as an absolute amount, and the portion 10b where the display device of the building material glass plate 10 is not bonded. It is possible to prevent the image from standing out as compared with the reflected image.

When the building material glass plate 10 is rectangular in plan view and the display surface of the display device is rectangular in plan view, as shown in FIG. 1, the building material glass plate 10 is close to the vertical side 10v and the vertical side 10v. The distance from the vertical side 30v of the display surface of the display device is preferably 100 mm or more, and more preferably 150 mm or more. Further, the distance between the horizontal side 10h of the building material glass plate 10 and the horizontal side 30h of the display device is preferably 100 mm or more, and more preferably 150 mm or more.
In addition, when one or both of the building material glass plate 10 and the display surface of the display device are not rectangular in plan view, one side 10v ′ of the building material glass plate 10 and display of the display device adjacent to the side 10v ′ are displayed. The distance from one side 30v ′ of the surface is preferably 100 mm or more, and more preferably 150 mm or more. Further, the distance between the other side 10h ′ of the building material glass plate 10 and the other side 30h ′ of the display device is preferably 100 mm or more, and more preferably 150 mm or more.
When the distinction between the portion 10a that is the opposing region of the display device 30 and the portion 10b that is the non-opposing region is emphasized, the display image of the display device 30 can be visually recognized so as to clearly appear. On the other hand, the reflected image at the above-described portion 10a tends to stand out from the reflected image at the portion 10b. When the distance of each side of the display device 30 to each side of the building material glass plate 10 is within the above range, setting the visible light reflectance of the building material glass plate 10 to 8% or less makes the display image of the display device 30 clear. It is beneficial in terms of

  While maintaining the visible light reflectance of the building material glass plate 10 at 8% or less, the near infrared transmittance, specifically, the transmittance of light having a wavelength of 950 nm is preferably 40% or more, more preferably 50% or more. Is more preferable. Thereby, even if the visible light reflectance of the building material glass plate 10 is lowered, the display image of the display device 30 can be displayed in the original color tone. As described above, when an antireflection film is provided on the surface of the building material glass plate (that is, the other surface S2) in order to reduce the visible light reflectance of the building material glass plate 10, reflection of light in the near infrared region is also reduced. . However, if the reflectance of light in the near-infrared region greatly decreases, the color tone of the entire building material glass plate 10 may become bluish, and the color tone of the display image of the display device 30 may be shifted from the original color tone. As a method for increasing the near-infrared transmittance, specifically, the transmittance of light having a wavelength of 950 nm to 40% or more while keeping the visible light reflectance of the building material glass plate 10 at 8% or less, for example, a film configuration of an antireflection film It is preferable to form a plurality of metal oxide layers, to select a material having a low iron content as a raw material of the building material glass plate 10, or to provide an antireflection film only on the portion 10a.

(Display device)
On one surface S1 of the building material glass plate 10, a display device 30 is provided. The display device 30 in the present embodiment is a liquid crystal display device, and examples thereof include an organic EL display device, a plasma display device, and various display devices. The display device 30 can display, for example, an image stored in a storage device (not shown) or an image transmitted from a computer or server connected via a network via the wiring 51.

  The display device 30 used in the present embodiment includes a liquid crystal panel 31 and a backlight 32 as an image display unit serving as a display surface. The liquid crystal panel 31 is provided so as to come into contact with one surface of the building material glass plate 10 through the transparent bonding material 12. The liquid crystal panel 31 may be fixed to the cover 40. In the present embodiment, the backlight 32 is provided on the back side of the liquid crystal panel 31 and is fixed to the cover 40. Furthermore, in this embodiment, the cover 40 is fixedly supported by the support member 33 joined to the following light shielding part 20 of the building material glass plate 10 by the adhesive 11.

  On one surface S <b> 1 of the building material glass plate 10 in the present embodiment, the light shielding unit 20 is provided in a region including the outer periphery of the liquid crystal panel 31 and the outer periphery of the display device 30 (the outer periphery of the support member 33).

  The light shielding part 20 is an opaque part formed on one surface of the building material glass plate 10 and shields the other surface S2 side of the building material glass plate 10 so that the one surface S1 side cannot be seen. The light shielding unit 20 is formed of, for example, a ceramic color fired body. The light shielding part 20 may be an opaque layer, and may be formed by a different method such as ink jet printing, or may be formed by bonding an opaque film or the like.

  By the light-shielding part 20 provided in the building material glass plate 10, the outer peripheral edge of the display device 30 and the outer peripheral edge of the liquid crystal panel 31 become invisible from the other surface side of the building material glass plate 10. Will improve. Furthermore, since the outer peripheral edge of the liquid crystal panel 31 becomes invisible from the other surface of the building material glass plate 10, an effect is obtained in which an image displayed on the liquid crystal panel 31 appears to float on the other surface side of the building material glass plate 10. .

(Lamination material)
In the present embodiment, the building material glass plate 10 and the display device 30 are bonded via a bonding material, preferably a transparent bonding material 12. In other embodiment, a building material glass plate and a display apparatus are bonded using the glass plate which has the transparent bonding material 12 on both surfaces as a bonding material. In another embodiment, the light shielding part 20 can be provided on the base glass plate without directly providing the light shielding part 20 on the building material glass plate 10.

  The transparent bonding material 12 may be filled and interposed between the building material glass plate 10 and the display device 30 in a liquid or paste state, or may be interposed as a film-like transparent bonding material. Examples of the transparent bonding material 12 include acrylic, urethane, and silicone resins. As for the transparent bonding material 12, it is preferable that it is 0.8 times-1.3 times with respect to the refractive index of the building material glass plate 10, for example, and it is 0.93 times-1.12 times. More preferred. In other embodiment, the form in which these resin was provided in both surfaces of the board | substrate glass plate is preferable.

  In this embodiment, since the building material glass plate 10 and the display device 30 are bonded via the transparent bonding material 12, the display image of the display device 30 does not appear on the one surface S1 of the building material glass plate 10. Or, the visibility of the display image from the other surface S2 side of the building material glass plate 10 is improved without reflection.

  The transparent bonding material 12 may use a cured product of a curable resin composition. When the transparent bonding material 12 is a cured product of the curable resin composition, the curable resin composition is applied to one surface of the building material glass plate 10 and the liquid crystal panel 31 is disposed, and then the curable resin composition is applied. The liquid crystal panel 31 can be bonded to the building material glass plate 10 by forming a cured product by irradiating light or the like. The display device 30 can be provided by providing the backlight 32 and the cover 40 on the back surface of the liquid crystal panel 31.

The transparent bonding material 12 has a shear elastic modulus at 25 ° C. of preferably 10 ³ Pa to 10 ⁷ Pa, and more preferably 10 ⁴ Pa to 10 ⁶ Pa. In particular, when the shear elastic modulus at 25 ° C. of the transparent bonding material 12 is 10 ⁴ Pa to 10 ⁶ Pa, the void that may be generated between the display device 30 and the building material glass plate 10 is relatively easily lost. This is preferable.

If the shear elasticity modulus in 25 degreeC of the transparent bonding material 12 is 10 < ³ > Pa or more, the shape of the apply | coated transparent bonding material 12 will be easy to be maintained. Therefore, even if the thickness of the applied transparent bonding material 12 is thick, the thickness is kept uniform throughout the transparent bonding material 12, and a gap is generated at the interface between the liquid crystal panel 31 and the transparent bonding material 12. It becomes difficult. The transparent bonding material 12 has a shear modulus at 25 ° C. of 10 ⁴ Pa or more, and the deformation is further suppressed. Furthermore, if the shear elasticity modulus in 25 degreeC of the transparent bonding material 12 is 10 < ⁷ > Pa or less, the bonding adhesive force of the display apparatus 30 and the building material glass plate 10 will become high, and the display apparatus 30 will be from the building material glass plate 10. FIG. It becomes difficult to peel.

  As for the thickness of the transparent bonding material 12, 0.03 mm-2 mm are preferable, and 0.1 mm-0.8 mm are more preferable. If the thickness of the transparent bonding material 12 is 0.03 mm or more, when an external force or the like is applied from the other surface of the building material glass plate 10, the transparent bonding material 12 sufficiently reduces the impact due to the external force, and the liquid crystal panel 31 can be protected. Moreover, even if the foreign material of the dimension less than the thickness of the transparent bonding material 12 mixes between the liquid crystal panel 31 and the building material glass plate 10, the thickness of the transparent bonding material 12 does not change, The influence on visibility is suppressed. Moreover, 2 mm or less is preferable for the thickness of the transparent bonding material 12 at the point which suppresses the fall of the visibility of the liquid crystal panel 31. FIG.

(cover)
As shown in FIG. 2, the building material glass plate 100 with a display device is preferably provided with a cover 40 that covers the back surface of the display device 30. In the present embodiment, the cover 40 has a rectangular box shape with an opening on the building material glass plate 10 side, and is fixed to the support member 33 of the display device 30 with screws or the like. A substrate (not shown), wiring, and the like are accommodated between the cover 40 and the backlight 32 of the display device 30.

  The cover 40 is preferably formed with a vent hole. Thereby, the air heated by the display device 30 is discharged to the outside of the cover 40 through the vent hole. As a result, the air heated by the display device 30 is not trapped inside the cover 40, and the temperature rise inside the cover 40 can be suppressed.

The cover 40 is preferably made of a material having high thermal conductivity such as aluminum or an aluminum alloy. When the cover 40 is formed of such a material, the heat inside the cover 40 is easily released to the outside, and the temperature rise inside the cover 40 is further suppressed.
The shape of the cover 40 is not limited to the shape exemplified in the present embodiment, and a different shape such as a dome shape can be adopted. Further, the support member 33 that fixes the cover 40 to the building material glass plate 10 is not limited to the configuration illustrated in FIG. 2.

(Building material glass structure)
In many cases, a building material glass plate is installed with a plurality of glass plates arranged adjacent to each other in a vertical state to form a building material glass structure. For example, in the case of a store window, a plurality of window glasses are adjacent to each other in the horizontal direction to ensure daylighting into the store and visibility inside and outside the store. The same applies to doors and partitions as well as windows. On the other hand, when the building material glass plate 100 with a display device of the present invention is used as one glass plate member of a building material glass structure, the building material glass plate 100 with a display device and the second building material glass plate 200 to which no display device is attached, Are arranged adjacent to each other. The example of FIG. 3 shows a structure in which a building material glass plate 100 with a display device is disposed between two second building material glass plates 200a and 200b in a front view.
In the example shown in FIG. 3, the building material glass plate 100 with a display device is arranged so as to be adjacent to the second building material glass plate 200 to which the display device is not attached, and the two second building material glass plates 200. However, the number of the second building material glass plates to which the display device is not attached may be three or more, or adjacent to each other. The number of building material glass plates with a display device to fit is not limited to one, but may be two or more, and various other arrangements can be employed.

In such a building material glass structure, the visible light reflectance Rg of the second building material glass plate 200 (that is, the other surface of the building material glass plate 100 of the second building material glass plate 200 (that is, the display device of the building material glass plate 100 is The visible light reflectance Rg) of the surface on the same side as the disposed surface) and the visible light reflectance Rd of the building material glass plate 10 of the building material glass plate 100 with a display device (that is, the other surface of the building material glass plate 100). (Rg−Rd) is preferably 2% or more, more preferably 5% or more. That is, when Rg> Rd, the reflected image on the second building material glass 200 stands out, and the reflected image on the portion 10a of the building material glass 100 with a display device becomes less noticeable. In particular, the portion 10a of the building material glass plate 10 is not transparent because the display device 30 is disposed on one surface of the building material glass plate 10, and thus the reflected image on the glass plate surface is more clearly visible. It is in. Therefore, when Rg-Rd is 2% or more, the conspicuousness of the reflected image at the portion 10a can be reduced, and the visibility of the display image can be improved.
Here, as an upper limit of the difference (Rg−Rd) between the visible light reflectance Rg of the second building material glass plate and the visible light reflectance Rd of the building material glass plate in the building material glass plate with a display device, for example, 8% is Is appropriate.

  The building material glass plate with a display device and the building material glass structure according to the embodiment have been described above, but the present invention is not limited to the above embodiment, and various modifications and improvements can be made within the scope of the present invention. is there.

The building material glass plate with a display device of the present invention is useful, for example, as a member constituting digital signage. Since the visible light reflectance of the building glass is in a predetermined range, the visibility of the display image of the image display device is unlikely to decrease. Moreover, if this building material glass plate with a display apparatus is used, the building material glass structure which can reduce the fall of the visibility of the display surface of a display apparatus by the reflected image in a glass surface can be provided.
The entire contents of the specification, claims, drawings and abstract of Japanese Patent Application No. 2015-012328 filed on January 26, 2015 are incorporated herein by reference. .

10: Building material glass plate, 11: Adhesive, 12: Transparent bonding material, 20: Shading part,
30: display device, 31: liquid crystal panel (image display unit), 32: backlight,
33: Support member, 40: Cover, 50: Mall, 51: Wiring, 100: Building material glass plate with display device, 200: Second building material glass plate.

Claims (6)

It has a building material glass plate that is attached to a building in a vertical state, a display device, and a bonding material that bonds the building material glass plate and the display device, and the display surface of the display device is attached to the building material glass plate. It is a building material glass plate with a display device, which is bonded through a composite material,
The display surface of the display device is bonded to a part of the entire surface of the building material glass plate via the bonding material,
The visible light reflectance of the building material glass plate in the portion where the display device is bonded, which is measured from the surface on which the display device is not bonded, is 8% or less. With building material glass plate.   The building material glass plate with a display device according to claim 1, wherein a transmittance of light having a wavelength of 950 nm of the building material glass plate is 40% or more.   The display surface of the building material glass plate and the display device is rectangular in plan view, and the distance between the vertical side of the building material glass plate and the vertical side of the display surface of the display device adjacent to the vertical side is 100 mm or more. The building material glass plate with a display device according to claim 1, wherein a distance between the horizontal side of the building material glass plate and the horizontal side and the horizontal side of the display surface of the display device is 100 mm or more.   The building material glass plate with a display device according to any one of claims 1 to 3, wherein the building material glass plate is an architectural window glass.   A building material glass structure in which the building material glass plate with a display device according to any one of claims 1 to 4 and a second building material glass plate to which no display device is attached are arranged adjacent to each other. The difference (Rg-Rd) between the visible light reflectance Rg of the second building material glass plate and the visible light reflectance Rd of the building material glass plate in the building material glass plate with a display device according to any one of claims 1 to 4. ) Is a building material glass structure of 2% or more.   6. The building material glass according to claim 1, wherein the building material glass plate with a display device according to claim 1 is sandwiched between two second building material glass plates when viewed from the front. Construction.

Images