Picture frame glass and picture frame

Abstract

The utility model discloses picture frame glass and a picture frame, and relates to the technical field of glass, the picture frame glass comprises a glass substrate, and an antireflection explosion-proof film is attached to one side of the glass substrate; the anti-reflection explosion-proof film comprises a film base layer, an anti-reflection layer group and a first explosion-proof layer; the anti-reflection layer group and the first explosion-proof layer are sequentially arranged on one side, far away from the glass substrate, of the film base layer; and an antireflection film is plated on one side, far away from the antireflection explosion-proof film, of the glass substrate. The picture frame comprises a frame body and picture frame glass, the picture frame glass is embedded in the inner side of the frame body, the frame body comprises a first extension section and a second extension section, the upper end of one side of the picture frame glass is attached to the inner side wall of the first extension section through sealant, and the lower end of one side of the picture frame glass is attached to the inner side wall of the second extension section through sealant. The picture frame glass and the picture frame have the effects of double-sided antireflection, weight reduction and explosion prevention.

Description

Technical Field

[0001] The present application relates to the technical field of glass, and in particular to a picture frame glass and a picture frame. Background Art

[0002] At present, most calligraphy and painting artworks are displayed in frames after being mounted. The frame glass is set on the outside of the frame, which can well protect the famous paintings in the frame from damage.

[0003] In order to improve the display effect of artworks and the experience of viewers, the frame glass not only needs to protect the artworks inside, but also needs to have a low reflectivity to facilitate viewing and shooting, and not cause dizziness. At the same time, in order to prevent broken glass waste from damaging precious artworks, the frame glass should also have explosion-proof properties.

[0004] In the related art, laminated glass is used as picture frame glass. Laminated glass includes two pieces of single-piece picture frame glass coated with anti-reflection film, and a layer of PVB film is sandwiched between the two pieces of glass. Laminated glass is formed by high-pressure compounding and heating. Although this kind of picture frame glass has both anti-reflection and explosion-proof properties, it has high production costs and is relatively heavy overall, which is not conducive to the transportation of artworks. It also has a low color rendering index and cannot be used in scenes such as famous paintings that have high color requirements and light weight requirements. Utility Model Content

[0005] In order to make the picture frame glass meet the performances of anti-reflection, explosion-proof and light weight at the same time, the present application provides a picture frame glass and a picture frame.

[0006] The present application provides a picture frame glass and a picture frame, which adopt the following technical solutions:

[0007] A picture frame glass comprises a glass substrate, one side of the glass substrate is provided with an anti-reflection and explosion-proof film; the anti-reflection and explosion-proof film comprises a thin film base layer, an anti-reflection layer group and a first explosion-proof layer, the anti-reflection layer group and the first explosion-proof layer are sequentially arranged on a side of the thin film base layer away from the glass substrate; the side of the glass substrate away from the anti-reflection and explosion-proof film is plated with an anti-reflection film.

[0008] By adopting the above technical solution, a film with both explosion-proof and anti-reflection functions is attached to one side of the glass substrate, and an anti-reflection film is plated on the other side through magnetron sputtering technology, thereby achieving the effect of double-sided anti-reflection and explosion-proof. At the same time, the overall weight of the picture frame is reduced by film attachment and coating, making the picture frame lighter, which is conducive to improving the viewing effect of artworks and facilitating the transportation of the picture frame.

[0009] Optionally, the anti-reflection layer group includes a first low refractive index layer, a high refractive index layer and a second low refractive index layer, and the first low refractive index layer, the high refractive index layer and the second low refractive index layer are arranged in sequence from a side close to the film base layer to a side away from the film base layer.

[0010] By adopting the above technical solution, the principle of anti-reflection is that light is reflected at the boundary of materials with different refractive indices. Since light will be reflected at the contact interface when it moves from a low-refractive index material to a high-refractive index material, the innermost and outermost layers of the anti-reflection layer group are both low-refractive index film layers. By alternately stacking high-refractive index film layers and low-refractive index film layers, different film layers interfere with each other, and multiple reflections achieve surface anti-reflection extinction.

[0011] Optionally, the first explosion-proof layer includes a metal coating and a wear-resistant coating, and the metal coating is located on a side of the wear-resistant coating away from the anti-reflection layer group.

[0012] By adopting the above technical solution, the metal coating can reflect and block infrared rays and light in a wavelength range that can generate high heat, thereby achieving heat insulation and ultraviolet protection functions; the wear-resistant layer can enhance the overall hardness of the explosion-proof layer, thereby making the picture frame glass have stronger hardness, scratch resistance and heat insulation performance.

[0013] Optionally, a second explosion-proof layer is provided between the first low-refractive index layer and the film base layer.

[0014] By adopting the above technical solution, the second explosion-proof layer is located on the inner side of the anti-reflection layer group, has excellent flexibility, and further increases the impact resistance of the picture frame glass.

[0015] Optionally, the anti-reflection and explosion-proof film further includes an adhesive layer, and the adhesive layer is located on a side of the film base layer close to the glass substrate.

[0016] By adopting the above technical solution, the adhesive layer is used to attach the anti-reflection and explosion-proof film to the surface of the glass substrate, and the adhesive layer can offset a part of the external impact force.

[0017] Optionally, the glass substrate has a thickness of 2 mm-5 mm.

[0018] By adopting the above technical solution, under the premise of achieving explosion-proof and anti-reflection, the glass substrate has a smaller thickness, thereby making the picture frame glass lighter.

[0019] In a second aspect, the present application discloses a picture frame, comprising a frame body and a picture frame glass, wherein the picture frame glass is embedded inside the frame body, and the frame body comprises a first extension section and a second extension section, wherein the first extension section and the second extension section are respectively located at upper and lower ends of one side of the frame body;

[0020] The upper end of one side of the picture frame glass is attached to the inner side wall of the first extension section by means of sealant, and the lower end of one side of the picture frame glass is attached to the inner side wall of the second extension section by means of sealant.

[0021] By adopting the above technical solution, the picture frame glass is pressed and arranged in the frame body by means of sealant, thereby further improving the impact resistance of the entire picture frame.

[0022] Optionally, a buffer layer is filled between the upper and lower ends of the picture frame glass and the inner wall of the frame body.

[0023] By adopting the above technical solution, the corners of the glass are the places where stress is concentrated and are relatively fragile, so the corners of the glass are prone to breakage. By filling a buffer layer between the corners of the picture frame glass and the frame body, it is helpful to offset the squeezing force on the picture frame glass, thereby improving the overall impact and squeezing resistance of the picture frame.

[0024] In summary, the present application includes at least one of the following beneficial effects:

[0025] 1. A film with both explosion-proof and anti-reflection functions is attached to one side of the glass substrate, and an anti-reflection film is plated on the other side through magnetron sputtering technology, thus achieving the effect of double-sided anti-reflection, explosion-proof and lightweight.

[0026] 2. The anti-reflection layer group achieves surface anti-reflection extinction by alternately stacking high-refractive index film layers and low-refractive index film layers, and different film layers interfere with each other and multiple reflections.

[0027] 3. The metal coating in the first explosion-proof layer can reflect and block infrared rays and light in a wavelength range that can generate high heat, thereby achieving heat insulation and UV protection functions; the wear-resistant layer can enhance the overall hardness of the explosion-proof layer, thereby making the picture frame glass have stronger hardness, scratch resistance and heat insulation performance.

[0028] 4. Filling a buffer layer between the corners of the picture frame glass and the frame body can help offset the extrusion force on the picture frame glass, thereby improving the overall impact and extrusion resistance of the picture frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional schematic diagram of the picture frame glass in the embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of the overall structure of the picture frame in the embodiment of the present application.

[0031] Figure 3 It is a cross-sectional schematic diagram of a picture frame in an embodiment of the present application.

[0032] Explanation of the accompanying drawings: 1. Glass substrate; 2. Anti-reflection and explosion-proof film; 21. Adhesive layer; 22. Thin film base layer; 23. Anti-reflection layer group; 231. First low refractive index layer; 232. High refractive index layer; 233. Second low refractive index layer; 24. First explosion-proof layer; 241. Metal coating; 242. Wear-resistant coating; 25. Second explosion-proof layer; 3. Anti-reflection film; 4. Frame; 41. First extension section; 42. Second extension section; 5. Picture frame glass; 6. Buffer layer; 7. Sealant; 8. Display area. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.

[0034] The present application embodiment discloses a picture frame glass, referring to Figure 1 The picture frame glass comprises a glass substrate 1 , an anti-reflection explosion-proof film 2 is attached to one side of the glass substrate 1 , and an anti-reflection film 3 is plated on the side of the glass substrate 1 away from the anti-reflection explosion-proof film 2 .

[0035] Reference Figure 1 The anti-reflection explosion-proof film 2 includes an adhesive layer 21, a film base 22, an anti-reflection layer group 23 and a first explosion-proof layer 24 arranged in sequence from the inside to the outside. The anti-reflection layer group 23 and the first explosion-proof layer 24 are both located on the side of the film base 22 away from the glass substrate 1, and the anti-reflection layer group 23 is located on the side of the first explosion-proof layer 24 close to the glass substrate 1. The adhesive layer 21 is located between the film base 22 and the glass substrate 1, and is used to attach the anti-reflection explosion-proof film 2 to the surface of the glass substrate 1. Specifically, the adhesive layer 21 is a single-component or multi-component acrylic pressure-sensitive adhesive with a thickness of 10-20 microns; the film base 22 is made of PET. The anti-reflection layer group 23 includes a first low refractive index layer 231, a high refractive index layer 232 and a second low refractive index layer 233, wherein the first low refractive index layer 231, the high refractive index layer 232 and the second low refractive index layer 233 are arranged in sequence from the side close to the film base 22 to the side away from the film base 22.

[0036] The innermost layer and the outermost layer of the anti-reflection layer group 23 are both low-refractive index film layers. Since light from the low-refractive index material to the high-refractive index material will form a reflection at the contact interface, multiple reflections will achieve surface anti-reflection extinction. The high-refractive index film layer and the low-refractive index film layer are alternately stacked, and each layer has an optical effect of relatively low reflection and high transmittance through reflection interference. Specifically, in this embodiment, the first low-refractive index layer 231 and the second refractive index layer are both silicon dioxide layers with a refractive index of 1.5, and a film thickness of 10nm to 50nm, specifically 25nm. In other embodiments, the first low-refractive index layer 231 and the second low-refractive index layer 233 can also select any one of a magnesium fluoride layer, a silicon oxynitride layer, and a silicon aluminum oxide layer. The high refractive index layer 232 in this embodiment is a silicon nitride layer with a refractive index of 2.5 and a film thickness of 10nm to 50nm, specifically 25nm. In other embodiments, the high refractive index layer 232 may also be any one of a niobium pentoxide layer, a titanium dioxide layer, a zinc sulfide layer, a zirconium oxide layer, and the like.

[0037] Reference Figure 1 The first explosion-proof layer 24 is arranged on the outside of the second low-reflection refractive index layer. The first explosion-proof layer 24 is located on the outermost side of the anti-reflection explosion-proof film 2 and has strong hardness, scratch resistance and heat insulation performance. Specifically, it includes a metal coating 241 and a wear-resistant coating 242. The metal coating 241 is located on the outside of the wear-resistant coating 242. The metal coating 241 can reflect and block infrared rays and light in a wavelength range that can generate large amounts of heat, thereby achieving heat insulation and ultraviolet light isolation functions; the wear-resistant layer can enhance the overall hardness of the explosion-proof layer, and is specifically composed of a wear-resistant material, polyurethane, which has a relatively large hardness and good wear resistance.

[0038] Further, see Figure 1 A second explosion-proof layer 25 is also provided between the film base layer 22 and the high refractive index layer 232. The second explosion-proof layer 25 is made of PET polyester film with a thickness of 25-50 microns, specifically 30 microns, so that the second explosion-proof layer 25 has excellent flexibility, impact resistance and better light transmittance.

[0039] Reference Figure 1 The thickness of the glass substrate 1 is 2 mm-3 mm, and in this embodiment, it is 2 mm. The anti-reflection film 3 is plated on the inner side of the glass substrate 1 by magnetron sputtering. The anti-reflection film 3 is made of silicon nitride and has a thickness of 90 nm-150 nm. Specifically, in this embodiment, it is 100 nm. The anti-reflection film 3 can further effectively reduce light reflection, achieve the purpose of double-sided anti-reflection of the glass substrate 1, and enable people to better view the items in the display cabinet.

[0040] Second, refer to Figure 2 and Figure 3The present application discloses a picture frame, which includes a frame body 4, a picture frame glass 5 and a display area 8. The picture frame glass 5 is embedded in the frame body 4, and the display area 8 is arranged on a side of the picture frame glass 5 away from the first extension section 41.

[0041] Reference Figure 3 The frame 4 includes a first extension section 41 and a second extension section 42. The first extension section 41 is located at one side of the upper end of the frame 4, and the second extension section 42 is located at one side of the lower end of the frame 4. The upper end of one side of the glass is attached to the inner wall of the first extension section 41, and the lower end of one side of the glass is attached to the inner wall of the second extension section 42.

[0042] Further, see Figure 3 In order to improve the crack resistance of the corners around the glass, the inner walls at the upper and lower ends of the frame 4, the inner walls of the first extension section 41 and the second extension section 42 and the glass are filled with a buffer layer 6. Specifically, in this embodiment, the buffer layer 6 is a rubber layer. The rubber layer is connected to the frame 4 through a sealant 7, and the upper end surface and the lower end surface of the glass are respectively bonded to the corresponding buffer layer 6 through the sealant 7. Specifically, the sealant 7 is a waterproof tape. The buffer layer 6 can further protect the corners of the glass. When the picture frame is squeezed by external force, the buffer layer 6 inside the frame 4 can offset part of the squeezing force, thereby reducing the force on the glass.

[0043] The implementation principle of a picture frame glass and a picture frame in the embodiment of the present application is as follows: a thin film with both anti-reflection and explosion-proof performance is attached to the outer side of a glass substrate 1, and a layer of anti-reflection film 3 is plated on the inner side of the glass substrate 1 by magnetron sputtering technology, thereby achieving the dual functions of double-sided anti-reflection and explosion-proof. The single glass substrate 1 makes the whole picture frame have explosion-proof performance and light weight, which is conducive to the transportation of the picture frame and improves the display effect.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A picture frame glass, characterized in that: The invention comprises a glass substrate (1), wherein an anti-reflection explosion-proof film (2) is attached to one side of the glass substrate (1); the anti-reflection explosion-proof film (2) comprises a thin film base (22), an anti-reflection layer group (23) and a first explosion-proof layer (24); the anti-reflection layer group (23) and the first explosion-proof layer (24) are sequentially arranged on a side of the thin film base (22) away from the glass substrate (1); and the anti-reflection film (3) is plated on a side of the glass substrate (1) away from the anti-reflection explosion-proof film (2).

2. A picture frame glass according to claim 1, characterized in that: The anti-reflection layer group (23) comprises a first low refractive index layer (231), a high refractive index layer (232) and a second low refractive index layer (233), wherein the first low refractive index layer (231), the high refractive index layer (232) and the second low refractive index layer (233) are arranged in sequence from a side close to the thin film base layer (22) to a side away from the thin film base layer (22).

3. A picture frame glass according to claim 2, characterized in that: A second explosion-proof layer (25) is provided between the first low-refractive index layer (231) and the thin-film base layer (22).

4. The picture frame glass according to claim 1, characterized in that: The first explosion-proof layer (24) comprises a metal coating (241) and a wear-resistant coating (242), wherein the metal coating (241) is located on a side of the wear-resistant coating (242) away from the anti-reflection layer group (23).

5. The picture frame glass according to claim 1, characterized in that: The anti-reflection and explosion-proof film (2) further comprises an adhesive layer (21), wherein the adhesive layer (21) is located on a side of the film base layer (22) close to the glass substrate (1).

6. The picture frame glass according to claim 1, characterized in that: The thickness of the glass substrate (1) is 2 mm-5 mm.

7. A picture frame comprising the picture frame glass according to any one of claims 1 to 6, characterized in that: It also comprises a frame body (4), a picture frame glass (5) is embedded inside the frame body (4), the frame body (4) comprises a first extension section (41) and a second extension section (42), the first extension section (41) and the second extension section (42) are respectively located at the upper and lower ends of one side of the frame body (4); The upper end of one side of the picture frame glass (5) is attached to the inner wall of the first extension section (41) via a sealant (7), and the lower end of one side of the picture frame glass (5) is attached to the inner wall of the second extension section (42) via a sealant (7).

8. A picture frame according to claim 7, characterized in that: A buffer layer (6) is filled between the upper and lower ends of the picture frame glass (5) and the inner wall of the frame body (4).

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