WO2013132963A1 - 展示物又は表示物用カバー部材 - Google Patents
展示物又は表示物用カバー部材 Download PDFInfo
- Publication number
- WO2013132963A1 WO2013132963A1 PCT/JP2013/053189 JP2013053189W WO2013132963A1 WO 2013132963 A1 WO2013132963 A1 WO 2013132963A1 JP 2013053189 W JP2013053189 W JP 2013053189W WO 2013132963 A1 WO2013132963 A1 WO 2013132963A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover member
- display
- film
- display object
- antireflection film
- Prior art date
Links
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 238000002834 transmittance Methods 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract description 27
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 33
- 239000010410 layer Substances 0.000 description 32
- 239000002585 base Substances 0.000 description 15
- 239000005388 borosilicate glass Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000005546 reactive sputtering Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007500 overflow downdraw method Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000005361 soda-lime glass Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 238000006124 Pilkington process Methods 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000005354 aluminosilicate glass Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000003280 down draw process Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
- G02B1/115—Multilayers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/005—Show cases or show cabinets with glass panels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
- A47G1/16—Devices for hanging or supporting pictures, mirrors, or the like
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
- C03C17/3417—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials all coatings being oxide coatings
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F11/00—Arrangements in shop windows, shop floors or show cases
- A47F11/06—Means for bringing about special optical effects
- A47F11/08—Non-reflecting shop-windows
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/73—Anti-reflective coatings with specific characteristics
- C03C2217/734—Anti-reflective coatings with specific characteristics comprising an alternation of high and low refractive indexes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
Definitions
- the present invention relates to an exhibit or display object cover member, an display case using the cover member, a frame, and a display device.
- the exhibits When exhibiting valuable objects, scholarly materials, artworks, etc. for a specific field at art museums, museums, etc., the exhibits are soiled, deteriorated, or have external force due to deliberate or accidents In addition, there is a risk of being damaged or damaged.
- the exhibit may be protected by a transparent cover member, but there is a problem in that the display is difficult to see because there is a reflection on the surface of the glass or resin constituting the cover member.
- display objects are protected by a transparent glass plate, etc., but images from display objects such as liquid crystals are reflected by reflection of sunlight or fluorescent lights. May be difficult to see.
- the present invention provides display items such as things valuable for a specific field, academic materials, art exhibits, mobile devices such as smartphones, mobile personal computers and portable game machines, car navigation systems, and stationary game machines.
- display or display object cover member that can be visually recognized as if nothing exists between the display or display object and the viewer while protecting the display case, a frame, and a display device using the same Is the main purpose.
- the display or display object cover member of the present invention comprises a transparent substrate and an antireflection film formed on at least one surface of the transparent substrate, and has a luminous reflectance of 0.5% or less.
- the transmittance of ultraviolet light of the display or display object cover member of the present invention is 30% or less.
- the ultraviolet light transmittance of the antireflection film is preferably 30% or less.
- the antireflection film is preferably a film in which low refractive index layers and high refractive index layers are alternately laminated.
- the outermost layer is preferably made of a SiO 2 film.
- the SiO 2 film preferably contains Al 2 O 3 in order to improve chemical durability.
- the content of Al 2 O 3 in the SiO 2 film is preferably in the range of 1 to 20% by mass. When the content of Al 2 O 3 is small, it is difficult to sufficiently obtain the effect of improving chemical durability. When the content of Al 2 O 3 is large, the refractive index of the film increases and the antireflection effect tends to be impaired.
- the display case of the present invention comprises a base and a cover member fixed so as to store and protect an exhibit placed on the base, the cover member comprising a transparent substrate, And an antireflection film formed on at least one surface of the transparent substrate, and comprising a cover member having a luminous reflectance of 0.5% or less.
- the cover member may have a curved surface.
- the frame of the present invention comprises a frame member and a cover member fixed to the frame member so as not to come into contact with the exhibits to be stored.
- the cover member is formed on at least one surface of the transparent substrate and the transparent substrate. And a cover member having a luminous reflectance of 0.5% or less.
- the display device of the present invention has a storage body for storing a display object and a cover member, and the cover member includes a transparent base material and an antireflection film formed on at least one side of the transparent base material. It is characterized by comprising a cover member having a luminous reflectance of 0.5% or less.
- the display device of the present invention may be one in which the display object and the cover member are bonded and fixed via a resin film.
- the display object may be provided in one area of the display device, and the cover member may be provided in a partial area of the display device so as to cover the display object.
- the water tank according to the present invention is characterized in that the cover member according to claim 1 is provided on at least a part of the side wall.
- the cover member may be detachably provided.
- a cover member that can be viewed as if there is nothing between the exhibit or display object and the viewer, and that can protect the exhibit or display object.
- FIG. 1A is a perspective view of an exhibition case using the cover member according to the first embodiment
- FIG. 1B is a partial cross-sectional view of the cover member
- FIG. 2A is a longitudinal sectional view of the display case using the cover member according to the second embodiment
- FIG. 2B is a plan view
- FIG. 3 is a longitudinal sectional view of a picture frame using a cover member according to the third embodiment
- FIG. 4A is a longitudinal sectional view of a display device using a cover member according to the fourth embodiment
- FIG. 4B is a partial sectional view of the cover member.
- FIG. 5 is a schematic plan view of a display device according to the fifth embodiment. 6 is a schematic cross-sectional view taken along line VI-VI in FIG. FIG.
- FIG. 7 is a schematic front view of a water tank according to the sixth embodiment.
- FIG. 8 is a schematic cross-sectional view taken along line VIII-VIII in FIG.
- FIG. 9 is a diagram illustrating the reflectance before and after the test in which the cover member of Example 1 according to the seventh embodiment is subjected to a salt water boiling test.
- FIG. 10 is a diagram showing the reflectance before and after the test in which the cover member of Example 2 according to the seventh embodiment is subjected to a salt water boiling test.
- the display object or display object cover member according to the present embodiment includes a transparent base material that can protect the display object and the display object from contamination, deterioration, breakage, and the like.
- the transparent substrate is made of glass, resin or the like having a high visible light transmittance. Glass is preferred from the viewpoints of weather resistance, light resistance, adhesion to an antireflection film, gas barrier properties, and the like.
- Glass material soda lime glass, borosilicate glass, aluminosilicate glass, alkali-free glass, air-cooled tempered glass, ion tempered glass, low expansion crystallized glass and the like can be used.
- As the shape of the transparent substrate a plate-like body, a box body, a curved plate body, a cylindrical body, or the like can be used.
- the thickness of the transparent substrate increases, the strength improves.
- the thickness of the transparent substrate is made of glass
- the thickness tends to increase as the thickness increases. desirable.
- the thickness of the transparent substrate glass plate
- the substrate has flexibility and can form a curved surface, and can receive incident light from the end surface and reflected light from the end surface. Since it can reduce, it is preferable.
- the preferred thickness of the transparent substrate is 20 ⁇ m to 0.2 mm, and further 50 ⁇ m to 0.1 mm.
- a transparent resin plate can be bonded to the surface of the glass plate for the purpose of supplementing the strength.
- the surface roughness of the glass plate is preferably 50 nm or less in terms of Ra because light scattering can be suppressed.
- the overflow downdraw method has a warp. It is suitable for obtaining a glass plate that is small, smooth (small surface roughness) and small in thickness.
- the antireflection film is formed on at least one side of the transparent base material, and the luminous reflectance of the cover member is 0.5% or less due to the action of the antireflection film. Therefore, even if an exhibit or display object is protected by this cover member, it can be visually recognized as if nothing exists between the exhibit or display object and the viewer.
- an antireflection film is formed on one side of a transparent substrate, if the antireflection film is formed on the surface opposite to the exhibits or display objects (surface on the viewer side), the effect of reflection by the transparent substrate is small and desired. This is preferable because it is easy to obtain the luminous reflectance.
- the antireflection film is formed on both surfaces of the transparent substrate, the luminous transmittance can be more easily reduced.
- an antireflection film also exists on the surface on the display or display object side. If the exhibit or display is in close contact (contact) with the antireflection film, it may be damaged or contaminated. Therefore, it is preferable to provide a certain distance between them.
- the antireflection film is a surface opposite to the display or display object on the transparent substrate (viewer).
- the antireflection film is preferably formed on both surfaces of the transparent substrate. In this case, it is preferable to form an antireflection film on the viewer side of the display object.
- the luminous reflectance is the tristimulus chromaticity Y specified in JIS Z 8701 (1999).
- the chromaticity Y is reflected from the side of the viewer using a spectrophotometer manufactured by Hitachi U-4100. The rate can be measured and obtained by calculation according to the JIS. At this time, the viewing angle was 10 °.
- the antireflection film is preferably made of an inorganic material, and more preferably, for example, an alternating film of a low refractive index layer and a high refractive index layer.
- the alternating film of the low refractive index layer and the high refractive index layer preferably has 8 to 40 layers in total. If the number of layers is less than 8, the desired luminous reflectance cannot be obtained, and if it is more than 40 layers, it is easy to peel off and it is not economical.
- the alternating film of the low refractive index layer and the high refractive index layer has a total number of layers of 10 or more, it becomes easy to obtain a cover member having a luminous reflectance of 0.2% or less, and 14 layers.
- the above is preferable because a cover member having a luminous reflectance of 0.16% or less is easily obtained.
- the number of layers on each surface is preferably the same, and the material and the film thickness of each layer are more preferably the same.
- the number of layers is preferably 4 to 20 layers.
- the low refractive index layer is preferably one selected from the group consisting of silicon oxide, aluminum oxide and magnesium fluoride, and the total physical film thickness of the low refractive film on one side is preferably 100 nm to 700 nm.
- the high refractive index film is preferably one kind selected from the group consisting of silicon nitride, aluminum nitride, zirconium oxide, niobium oxide, tantalum oxide, hafnium oxide, titanium oxide, tin oxide and zinc oxide.
- the total physical film thickness of the high refractive index film is preferably 50 nm to 250 nm.
- an antireflection film on a transparent substrate As a method for forming an antireflection film on a transparent substrate, sputtering, vacuum deposition, dipping, spin coating, ion plating, CVD, etc. can be used. Then, it is preferable because the film thickness is uniform, the adhesion to the transparent substrate is strong, and the film hardness is increased.
- the cover member of the present invention is suitable as a cover member for display cases, frames, and display devices.
- a plurality of cover members can be used, or a curved cover member and a planar cover member can be used in combination.
- they may be bonded and fixed with an adhesive or may be bonded with a frame.
- cover member of the present invention may be marked for identifying the front and back surfaces. Further, in order to ensure safety so that the viewer does not notice and hit the cover member, a region where a part of the antireflection film is not formed or a marking (mark) may be applied.
- the cover member of the present invention preferably has an ultraviolet light transmittance of 30% or less, and more preferably has an ultraviolet light transmittance of 20% or less. In this case, since the ultraviolet light reaches the exhibit or the like by the cover member, deterioration of the exhibit or the like due to the ultraviolet ray can be suppressed.
- ultraviolet light refers to light in the wavelength range of 280 nm to 380 nm.
- the transparent base material and the antireflection film shields ultraviolet light, and both the transparent base material and the antireflection film are ultraviolet light. It is more preferable that it shields.
- the transmittance of ultraviolet light of the transparent substrate is preferably 30% or less, and more preferably 20% or less.
- the transmittance of ultraviolet light of the antireflection film is preferably 30% or less, and more preferably 20% or less.
- FIG. 1A shows a display case 10 for storing and displaying an exhibit 1 such as a work of art.
- the display case 10 includes a base 2 having a placement surface and a cover member 3 that houses and protects the exhibit 1 placed on the base 2.
- the cover member 3 has a box shape in which four side plates 31 and one top plate 32 are bonded and fixed.
- the four side plates 31 include a glass plate 31a made of soda-lime glass having a thickness of 5 mm, and an antireflection film 31b formed on both surfaces of the glass plate 31a.
- the top plate 32 is made of the same glass plate as the side plate 31, and no antireflection film is formed.
- the antireflection film 31b is a 16-layer alternating film (32 layers on both sides) of a low-refractive index film made of SiO 2 and a high-refractive index film made of Nb 2 O 5.
- a high refractive index film made of Nb 2 O 5 is formed on 31a, and a low refractive index film made of SiO 2 is formed on the outermost layer.
- the luminous reflectance of the side plate 31 was 0.12%. Therefore, there was no reflection on the surface of the side plate 31 of the cover member 3, and it was visible as if there was nothing between the exhibit 1 and the viewer.
- the low refractive index film and the high refractive index film are both formed by reactive sputtering.
- FIG. 2 shows a display case 20 for storing and displaying the exhibits 11 such as paintings.
- the display case 20 includes a cover member 13 that houses and protects the exhibit 11 fixed to the wall 12.
- the cover member 13 has a kamaboko shape in which one curved side plate 131, one top plate 132, and one bottom plate 133 are bonded and fixed.
- the side plate 131 includes a glass plate 31a and an antireflection film 31b formed on both surfaces of the glass plate 31a. Since the reflection tends to increase when the curvature radius R of the side surface 131 is too small, it is preferable to regulate the curvature radius R to be 400 mm or more.
- the glass plate 31a is different from the first embodiment in that the glass plate 31a is made of borosilicate glass having a thickness of 0.3 mm.
- the top plate 132 and the bottom plate 133 are made of the same glass plate as the side plate 131, and no antireflection film is formed.
- the antireflection film has the same configuration as that of the first embodiment. Due to the above configuration, there is no reflection on the surface of the side plate 131 of the cover member 13, and not only viewers in front of the exhibit 11, but also viewers viewing from the oblique direction of the exhibit 11 are exhibited. It was visible as if nothing existed between the object and the viewer.
- FIG. 3 shows a frame 30 for storing and displaying an exhibit 21 such as a painting.
- the frame 30 includes a frame member 24 and a cover member 23 fitted into the frame member 24 at a distance from the exhibit 21 so as not to come into contact with the stored exhibit 21.
- the cover member 23 includes a glass plate 31a and an antireflection film 31b formed on both surfaces of the glass plate 31a.
- the glass plate 31a is different from the first embodiment in that it is made of non-alkali borosilicate glass (OA-10G manufactured by Nippon Electric Glass Co., Ltd.) having a thickness of 0.5 mm.
- the antireflection film has the same configuration as that of the first embodiment.
- the exhibit 21 Due to the configuration as described above, there was no reflection on the surface of the cover member 13, and it was visible as if there was nothing between the exhibit 21 and the viewer. Moreover, since the exhibit 21 and the cover member 23 do not contact, the exhibit 21 can be protected from damage and contamination.
- FIG. 4A shows a display device 50 in which a display object 41 such as a liquid crystal is incorporated.
- the display device 50 includes a display object 41, a cover member 43 that is bonded and fixed to the display object 41 through a resin film 44, and a storage body 42 that stores the display object 41 and the cover member 43.
- the cover member 43 includes a single glass plate 43a and an antireflection film 43b formed on the non-contact surface of the resin film 44 of the glass plate 43a.
- the glass plate 31a is made of non-alkali borosilicate glass (OA-10G manufactured by Nippon Electric Glass Co., Ltd.) having a thickness of 70 ⁇ m.
- OA-10G non-alkali borosilicate glass
- the antireflection film is a total of six alternating layers of a low refractive index film made of SiO 2 and a high refractive index film made of Nb 2 O 5.
- a high refractive index film made of 2 O 5 is formed, and a low refractive index film made of SiO 2 is formed on the outermost layer.
- the luminous reflectance of the cover member 43 was 0.16%. Since the display device 50 is configured as described above, there was no reflection on the surface of the cover member 43, and the display device 50 was visible as if nothing existed between the display object 41 and the viewer. In addition, since there was no reflection of sunlight or the like, the image by the display object could be seen clearly even outdoors.
- the reflectance was measured from the viewer side of the cover member 43 in a state where the display object 41 was adhered and fixed through the resin film 44.
- the low refractive index film and the high refractive index film are both formed by reactive sputtering.
- FIG. 5 is a schematic plan view of a display device according to the fifth embodiment.
- FIG. 6 is a schematic cross-sectional view taken along line VI-VI in FIG.
- the display device 51 of the present embodiment constitutes a play equipment such as a pachinko machine or a slot machine, for example.
- the display device 51 includes a device main body 52.
- a display object 52 a is provided in a part of the device main body 52.
- the display object 52a includes a liquid crystal panel, a plasma display panel, an electroluminescence panel, or the like.
- a protection plate 53 made of a glass plate or the like is provided in front of the device main body 52.
- a cover member 54 is provided on at least one surface of the protective plate 53.
- the cover member 54 has a transparent base material and an antireflection film provided on the transparent base material, like the side plate 31 and the like.
- the antireflection film may be provided on one surface of the cover member 54 or may be provided on both surfaces.
- the cover member 54 is provided in a partial region of the display device 51 so as to cover the display object 52a. For this reason, the fall of the visibility of the image displayed on the display thing 52a resulting from reflections, such as a background, can be suppressed. In particular, when the display object 52a is blacked out, the amount of transmitted light is reduced, and reflection of the background and the like is easily noticeable. Therefore, it is effective to provide the cover member 54. By providing the cover member 54, it is possible to suppress the concentration of the player of the play equipment from diverging due to reflection or the like.
- FIG. 7 the typical front view of the water tank which concerns on 6th Embodiment is shown.
- FIG. 8 is a schematic cross-sectional view of the side wall of the water tank according to the sixth embodiment.
- FIG. 8 is a schematic cross-sectional view taken along line VIII-VIII in FIG.
- Aquatic organisms exist on the back side of the sheet of FIG. 7 and on the x1 side of FIG.
- An aquatic viewer is located on the front side of the sheet of FIG. 7 and the x2 side of FIG.
- the water tank 60 has a side wall 61.
- the side wall 61 may have a flat plate shape, but in the present embodiment, the side wall 61 is provided in a curved plate shape that is convex on the viewer side (x2 side).
- the side wall 61 is made of glass, resin, or the like.
- a cover member 63 is provided on the outer wall surface 61 a of the side wall 61.
- the cover member 63 includes a transparent base material and an antireflection film provided on the transparent base material, like the side plate 31 of the first embodiment, the cover member 43 of the fourth embodiment, and the like.
- the antireflection film may be provided on one surface of the cover member 63, or may be provided on both surfaces.
- the side wall 61 of the water tank 60 may be huge, and it is difficult to provide an antireflection film directly on the surface of the side wall 61.
- the viewer may touch the side wall 61. Therefore, the antireflection film may be damaged by contact with the viewer.
- an antireflection film is provided on the side wall 61, it is difficult to repair the antireflection film on the installed side wall 61.
- the cover member 63 is provided on a part of the outer wall surface 61a as in the present embodiment, it is easy to form an antireflection film, and it is excellent in maintainability when the antireflection film is damaged. Yes.
- the cover member 63 is preferably provided so as to be detachable from the side wall 61. Specifically, for example, the cover member 63 is preferably adhered to the side wall 61. However, the cover member 63 may be bonded to the side wall 61.
- the transparent base material of the cover member 63 preferably has a refractive index substantially similar to that of the side wall 31.
- the difference between the refractive index of the transparent substrate and the refractive index of the side wall 31 is preferably 0.1 or less.
- the refractive index difference between an adhesive layer and a transparent base material is demonstrated. Each difference is preferably 0.1 or less.
- the transparent substrate is made of a flexible resin sheet or a glass sheet having a thickness of 300 ⁇ m or less.
- the antireflection film is a film in which low refractive index layers and high refractive index layers are alternately stacked, and the outermost layer is made of a SiO 2 film containing Al 2 O 3 .
- a non-alkali borosilicate glass (OA-10G manufactured by Nippon Electric Glass Co., Ltd.) having a thickness of 500 ⁇ m was used as a glass plate, and a low refractive index composed of Al—SiO 2 as shown in Table 3 below.
- the layers and the high refractive index layers made of Nb 2 O 5 were alternately laminated in total, thereby obtaining the cover member of Example 1 according to the seventh embodiment.
- Example 2 A member For comparison, as shown in Table 4 below, The outermost layer of the SiO 2 film 5, except that the SiO 2 film not containing Al 2 O 3, the same procedure as in Example 1 to form an antireflection film on a glass plate, a cover of Example 2 A member was obtained.
- Al—SiO 2 indicates a SiO 2 film containing Al 2 O 3 .
- the content of Al 2 O 3 was 5.3 mass%.
- the luminous reflectance of the cover member of Example 1 was 0.23%, and the luminous reflectance of the cover member of Example 2 was 0.29%.
- the salt water boiling test was done as follows. The above cover member was immersed in salt water having a NaCl concentration of 4.8% by mass and a temperature of 90 ° C. for 30 minutes, and then pulled up, the surface was washed with pure water, and dried.
- FIG. 9 shows the reflectance of the cover member of Example 1 before and after the test
- FIG. 10 shows the reflectance of the cover member of Example 2 before and after the test.
- the SiO 2 film other than the outermost layer also contains Al 2 O 3 , but the SiO 2 film other than the outermost layer does not necessarily contain Al 2 O 3. You don't have to. That is, if the outermost SiO 2 film contains Al 2 O 3 , the above-described effect that the chemical durability can be improved can be obtained.
- the “Al—SiO 2 film” and the Nb 2 O 5 film are both formed by the reactive sputtering method. In forming the “Al—SiO 2 film”, 6.0% by mass of metal Al is used. The Si target contained was used.
- the cover member of the present invention is a thing valuable for a specific field, academic materials, arts, exhibits such as aquatic organisms, mobile devices such as smartphones, mobile PCs, portable game machines, car navigation, stationary games It can be used as a cover member for protecting display objects such as machines, pachinko machines and slot machines.
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Abstract
Description
反射防止膜は、低屈折率層と高屈折率層を交互に積層した膜であることが好ましい。この場合、最外層は、SiO2膜からなることが好ましい。さらに、SiO2膜は、化学的耐久性向上のためにAl2O3を含むことが好ましい。SiO2膜におけるAl2O3の含有量は、1~20質量%の範囲内であることが好ましい。Al2O3の含有量が少ないと化学的耐久性向上の効果が十分得られにくく、また、Al2O3の含有量が多いと膜の屈折率が上昇して反射防止効果を損ないやすい。
図1(a)に、美術品等の展示物1を収納・展示するための展示ケース10を示している。展示ケース10は、載置面を有する基台2と、基台2の上に載置された展示物1を収納し保護するカバー部材3とを備えている。カバー部材3は、4枚の側板31と、1枚の天板32が接着固定された箱形状を有している。4枚の側板31は、図1(b)に示すように、厚みが5mmのソーダ石灰ガラスからなるガラス板31aと、ガラス板31aの両面に形成された反射防止膜31bからなる。なお、天板32は、側板31と同一のガラス板からなり、反射防止膜は形成されていない。
図2に、絵画等の展示物11を収納・展示するための展示ケース20を示している。展示ケース20は、壁12に固定された展示物11を収納し保護するカバー部材13からなる。カバー部材13は、1枚の曲面状の側板131と、1枚の天板132と、1枚の底板133が接着固定されたかまぼこ状を有している。側板131は、第1の実施形態と同様に、ガラス板31aと、ガラス板31aの両面に形成された反射防止膜31bからなる。尚、側面131の曲率半径Rが小さくなりすぎると、反射が大きくなりやすいため、曲率半径Rが400mm以上となるように規制することが好ましい。ここで、ガラス板31aは、厚みが0.3mmからなる硼珪酸塩系ガラスからなる点が第1の実施形態と異なる。なお、天板132及び底板133は、側板131と同一のガラス板からなり、反射防止膜は形成されていない。反射防止膜は、第1の実施形態と同一の構成である。上記のような構成のため、カバー部材13の側板131の表面での写り込みがなく、展示物11の正面にいる鑑賞者だけでなく、展示物11の斜め方向から鑑賞する鑑賞者も、展示物と鑑賞者の間にあたかも何も存在しないかの如く視認できた。
図3に、絵画等の展示物21を収納・展示するための額縁30を示している。額縁30は、枠材24と、収納する展示物21と接触しないように展示物21と間隔をあけて、枠材24に嵌め込んだカバー部材23とからなる。カバー部材23は、第1の実施形態と同様に、ガラス板31aと、ガラス板31aの両面に形成された反射防止膜31bからなる。ここで、ガラス板31aは、厚みが0.5mmからなる無アルカリ硼珪酸塩系ガラス(日本電気硝子社製OA-10G)からなる点が第1の実施形態と異なる。反射防止膜は、第1の実施形態と同一の構成である。上記のような構成のため、カバー部材13の表面での写り込みがなく、展示物21と鑑賞者の間にあたかも何も存在しないかの如く視認できた。また、展示物21とカバー部材23が接触することがないため、展示物21を損傷や汚染から保護できる。
図4(a)に、液晶等の表示物41を組み込んだ表示デバイス50を示している。表示デバイス50は、表示物41と、樹脂フィルム44を介して表示物41と接着固定されたカバー部材43と、表示物41とカバー部材43を収納する収納体42とからなる。カバー部材43は、図4(b)に示すように、1枚のガラス板43aと、ガラス板43aの樹脂フィルム44の非接触面に形成された反射防止膜43bからなる。ここで、ガラス板31aは、厚みが70μmからなる無アルカリ硼珪酸塩系ガラス(日本電気硝子社製OA-10G)からなる。
尚、視感反射率を算出するに当たり、樹脂フィルム44を介して表示物41と接着固定した状態で、カバー部材43の鑑賞者側から反射率を測定した。また、上記低屈折率膜及び高屈折率膜は、いずれも反応性スパッタ法により成膜されている。
図5に、第5の実施形態に係る表示デバイスの模式的平面図を示す。図6に、図5の線VI-VIにおける模式的断面図を示す。
図7に、第6の実施形態に係る水槽の模式的正面図を示す。図8に、第6の実施形態に係る水槽の側壁の模式的断面図を示す。なお、図8は、図7の線VIII-VIIIにおける模式的断面図である。図7の紙面奥側、図8のx1側に水生生物が存在する。図7の紙面手前側、図8のx2側に水生生物の観者が位置する。
本実施形態では、反射防止膜が、低屈折率層と高屈折率層を交互に積層した膜であり、最外層がAl2O3を含有したSiO2膜からなっている。
厚みが500μmである無アルカリ硼珪酸塩系ガラス(日本電気硝子社製OA-10G)をガラス板として用い、この上に、以下の表3に示すように、Al-SiO2からなる低屈折率層と、Nb2O5からなる高屈折率層とを合計5層交互に積層し、第7の実施形態に従う実施例1のカバー部材を得た。
また、実施例1のカバー部材の視感反射率は0.23%であり、実施例2のカバー部材の視感反射率は0.29%であった。
NaCl濃度4.8質量%、温度90℃の塩水に、上記のカバー部材を30分間浸漬させた後、引き上げて表面を純水で洗浄し、乾燥した。
2…基台
3、13、23、43、54、63…カバー部材
10、20…展示ケース
12…壁
24…枠材
30…額縁
31、131…側板
31a…ガラス板
32b…反射防止膜
32、132…天板
41、52a…表示物
42…収納体
44…樹脂フィルム
50、51…表示デバイス
52…デバイス本体
53…保護板
60…水槽
61…側壁
61a…外壁面
133…底板
Claims (13)
- 透明基材と、該透明基材の少なくとも片面に形成された反射防止膜とを備え、視感反射率が0.5%以下であることを特徴とする展示物又は表示物用カバー部材。
- 紫外光の透過率が30%以下であることを特徴とする請求項1に記載の展示物又は表示物用カバー部材。
- 前記反射防止膜の紫外光の透過率が30%以下であることを特徴とする請求項2に記載の展示物又は表示物用カバー部材。
- 前記反射防止膜は、低屈折率層と高屈折率層を交互に積層した膜であり、最外層がAl2O3を含有したSiO2膜からなることを特徴とする請求項1~3のいずれか一項に記載の展示物又は表示物用カバー部材。
- SiO2膜におけるAl2O3の含有量が、1~20質量%の範囲内であることを特徴とする請求項4に記載の展示物又は表示物用カバー部材。
- 基台と、該基台の上に載置された展示物を収納し保護するように固定されたカバー部材からなり、該カバー部材が、請求項1~5のいずれか一項に記載のカバー部材からなることを特徴とする展示ケース。
- カバー部材が曲面を有することを特徴とする請求項6に記載の展示ケース。
- 枠材と、収納する展示物と接触しないように枠材に固定されたカバー部材からなり、該カバー部材が、請求項1~5のいずれか一項に記載のカバー部材からなることを特徴とする額縁。
- 表示物とカバー部材とを収納する収納体を有し、該カバー部材が、請求項1~5のいずれか一項に記載のカバー部材からなることを特徴とする表示デバイス。
- 前記表示物と前記カバー部材とが、樹脂フィルムを介して接着固定されてなることを特徴とする請求項9に記載の表示デバイス。
- 前記表示物が前記表示デバイスの一領域に設けられており、
前記カバー部材が前記表示物を覆うように、前記表示デバイスの一部の領域に設けられていることを特徴とする請求項9または10に記載の表示デバイス。 - 側壁の少なくとも一部の上に、請求項1~5のいずれか一項に記載のカバー部材が設けられたことを特徴とする水槽。
- 前記カバー部材が着脱可能に設けられていることを特徴とする請求項12に記載の水槽。
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US14/381,621 US9995852B2 (en) | 2012-03-09 | 2013-02-12 | Cover member for exhibit item or display |
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- 2013-02-12 KR KR1020147020977A patent/KR20140132707A/ko not_active Application Discontinuation
- 2013-02-12 JP JP2013506408A patent/JPWO2013132963A1/ja active Pending
- 2013-02-12 US US14/381,621 patent/US9995852B2/en active Active
- 2013-02-12 WO PCT/JP2013/053189 patent/WO2013132963A1/ja active Application Filing
- 2013-03-05 TW TW102107701A patent/TWI576604B/zh active
- 2013-03-08 CN CN2013201069683U patent/CN203311022U/zh not_active Expired - Fee Related
- 2013-03-08 CN CN2013100749256A patent/CN103308961A/zh active Pending
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JP2022109729A (ja) * | 2021-01-15 | 2022-07-28 | 株式会社電通 | 標本箱および標本の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
TWI576604B (zh) | 2017-04-01 |
CN203311022U (zh) | 2013-11-27 |
TW201341836A (zh) | 2013-10-16 |
US9995852B2 (en) | 2018-06-12 |
US20150020745A1 (en) | 2015-01-22 |
KR20140132707A (ko) | 2014-11-18 |
JPWO2013132963A1 (ja) | 2015-07-30 |
CN103308961A (zh) | 2013-09-18 |
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