Dimming film and dimming glass

Abstract

According to the technical scheme, the dimming film comprises a first transparent substrate, a first transparent conducting layer, a light control layer, a second transparent conducting layer and a second transparent substrate which are sequentially arranged in a stacked mode, and is characterized in that the distance between the surface of the first transparent substrate or the surface of the second transparent substrate and the edge of the dimming film is m1, and m1 is larger than or equal to 0; the first transparent substrate is provided with a first isolation area with the width of n1, the first isolation area penetrates through the first transparent substrate, the first transparent conductive layer and the light control layer, or the first isolation area penetrates through the second transparent substrate, the second transparent conductive layer and the light control layer. The light control area in the light adjusting film can be effectively sealed and protected, and the situation that the light adjusting stability is reduced due to the fact that the light adjusting film is affected by humidity and air due to the poor sealing effect is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronically controlled dimming glass, in particular to a dimming film and a dimming glass. Background Art

[0002] The key part of the dimming film and the dimming glass is the light control layer. The light control layer, such as a suspended particle light control layer, a polymer dispersed liquid crystal light control layer or an electrochromic light control layer, is very sensitive to humidity, air, etc. in the environment. Long-term exposure to a high-temperature and humid environment will cause the dimming film to have the defect of dimming failure starting from the four peripheral edges, and will also cause the stability of the dimming film to decrease. Therefore, the light control area needs very strict protection.

[0003] For this reason, Patent CN103003746A discloses a technical solution of pasting a sealing tape on the peripheral edge part of the dimming film. Before pasting the tape, it is necessary to remove the moisture inside the film first. This solution still has the problems of complex operation, incomplete removal of moisture inside the film, and poor sealing effect. Therefore, it is necessary to provide a dimming film preparation technology that is simpler and easier to operate and has a good sealing effect. Summary of the Utility Model

[0004] In view of the above problems, the utility model aims to provide a dimming film and a dimming glass, which can effectively protect the light control area of the dimming film from the influence of humidity and air.

[0005] The technical solution of the utility model is a dimming film, which includes a first transparent substrate, a first transparent conductive layer, a light control layer, a second transparent conductive layer and a second transparent substrate stacked in sequence. The feature is that: at a distance of m1 from the edge of the dimming film on the surface of the first transparent substrate or the second transparent substrate, and m1≥0, there is a first isolation area with a width of n1. Among them, the first isolation area penetrates through the first transparent substrate, the first transparent conductive layer and the light control layer, or the first isolation area penetrates through the second transparent substrate, the second transparent conductive layer and the light control layer.

[0006] Preferably, at a distance of m2 from the edge of the dimming film on the surface of the second transparent substrate or the first transparent substrate, and m2≥0, there is a second isolation area with a width of n2. Among them, the second isolation area penetrates through the first transparent substrate, the first transparent conductive layer and the light control layer, or the second isolation area penetrates through the second transparent substrate, the second transparent conductive layer and the light control layer; the projection distance between the second isolation area and the first isolation area is c, where c is greater than 0mm.

[0007] Preferably, m1 satisfies 5mm≤m1≤50mm, and m2 satisfies 5mm≤m2≤50mm.

[0008] Preferably, n1 satisfies 5mm≤n1≤50mm, and n2 satisfies 5mm≤n2≤50mm.

[0009] Preferably, the projection distance c satisfies 5 mm ≤ c ≤ 50 mm.

[0010] Preferably, the first isolation region penetrates through from the first transparent substrate and the second isolation region penetrates through from the second transparent substrate; or the first isolation region penetrates through from the second transparent substrate and the second isolation region penetrates through from the first transparent substrate.

[0011] Preferably, the first isolation region penetrates through from the first transparent substrate to the second transparent conductive layer, and the second isolation region penetrates through from the second transparent substrate to the first transparent conductive layer; or the first isolation region penetrates through from the second transparent substrate to the first transparent conductive layer, and the second isolation region penetrates through from the first transparent substrate to the second transparent conductive layer.

[0012] Preferably, the first isolation region penetrates through from the first transparent substrate to the second transparent substrate but does not penetrate the second transparent substrate, and the second isolation region penetrates through from the second transparent substrate to the first transparent substrate but does not penetrate the first transparent substrate; or the first isolation region penetrates through from the second transparent substrate to the first transparent substrate but does not penetrate the first transparent substrate, and the second isolation region penetrates through from the first transparent substrate to the second transparent substrate but does not penetrate the second transparent substrate.

[0013] Preferably, both the first isolation region and the second isolation region enclose a closed region respectively.

[0014] Preferably, the thickness of the light control layer is d, and the relationship between d and n1 satisfies that d:n1 is in the range of 1:1 to 1:10, and the relationship between d and n2 satisfies that d:n2 is in the range of 1:1 to 1:10.

[0015] Preferably, the materials of the first isolation region and the second isolation region are one or more of epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic resin, butyl rubber, and organosiloxane polymer.

[0016] Preferably, the materials of the first isolation region and the second isolation region are organosiloxane polymer, which is formed by crosslinking and curing of curable organosiloxane oligomer.

[0017] Preferably, the organosiloxane polymer is formed by UV curing of UV curable organosiloxane oligomer.

[0018] Preferably, the UV curable organosiloxane oligomer is selected from at least one of acryloxy group-containing organosiloxane oligomer and epoxy group-containing organosiloxane oligomer.

[0019] Preferably, the light control layer is selected from a suspended particle light control layer, a polymer dispersed liquid crystal light control layer, or an electrochromic light control layer.

[0020] Preferably, the longitudinal section of the first isolation region is at least one of rectangular, V-shaped, U-shaped, trapezoidal or I-shaped; the longitudinal section of the second isolation region is at least one of rectangular, V-shaped, U-shaped, trapezoidal or I-shaped.

[0021] The technical solution of the utility model is a dimming glass, characterized in that it comprises a first glass plate and a second glass plate, and the dimming film arranged between the first glass plate and the second glass plate.

[0022] Preferably, a first interlayer is provided between the first glass plate and the dimming film, and / or a second interlayer is provided between the second glass plate and the dimming film.

[0023] Preferably, the types of the first glass plate and the second glass plate are not particularly limited, and can be conventional dimming glass well known to those skilled in the art, and can be ordinary glass such as inorganic glass, organic glass, such as PC plate, PMMA plate, etc., or functional glass such as UV blocking glass, IR blocking glass, Low-E glass, tempered glass or antibacterial glass, etc., and can also be selected from colored glass such as gray glass, brown glass, etc.

[0024] Preferably, there is no special restriction on the type of the interlayer material, and it can be any conventional film for dimming glass known to those skilled in the art, which can be EVA film, TPU film or PVB film; it can also be a functional film, such as UV blocking EVA film, UV blocking TPU film or UV blocking PVB film, infrared blocking EVA film, infrared blocking TPU film or infrared blocking PVB film; colored EVA film, TPU film or PVB film can also be selected.

[0025] Preferably, the interlayer material is selected from at least one of EVA film, TPU film and PVB film.

[0026] Preferably, there is no special limitation on the laminating method for preparing the dimming glass, and it can be a conventional laminating method for dimming glass in the art, such as laminating in a laminator, or laminating in an autoclave or a laminating box / furnace.

[0027] Preferably, the lamination temperature of the lamination treatment is 90-130° C., the lamination relative pressure is 0.1-1.2 MPa, and the lamination time is 30-120 minutes.

[0028] The utility model can effectively seal and protect the light control area inside the dimming film, and avoid the dimming stability being reduced due to the influence of humidity and air on the dimming film caused by poor sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 FIG. 1 is a schematic structural view of a light - modulating film of the present utility model;

[0030] Figure 2 FIG. 2 Figure 1 is a cross - sectional view along the direction of A - A;

[0031] Figure 3 FIG. 3 Figure 1 is another cross - sectional view along the direction of A - A;

[0032] Figure 4 FIG. 4 is a schematic structural view of a second light - modulating film of the present utility model;

[0033] Figure 5 FIG. 5 Figure 4 is a cross - sectional view along the direction of B - B;

[0034] Figure 6 FIG. 6 is a schematic structural view of a third light - modulating film of the present utility model;

[0035] Figure 7 FIG. 7 Figure 6 is a cross - sectional view along the direction of C - C;

[0036] Figure 8 FIG. 8 is a schematic structural view of a light - modulating glass of the present utility model;

[0037] Wherein: 1 - first transparent substrate; 2 - first transparent conductive layer; 3 - light - control layer; 4 - second transparent conductive layer; 5 - second transparent substrate; 6 - first isolation region; 7 - second isolation region; 8 - first glass plate; 9 - second glass plate; 10 - first interlayer; 11 - second interlayer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0039] As Figures 1 to 3 shown, the present utility model provides a light - modulating film, which comprises a first transparent substrate 1, a first transparent conductive layer 2, a light - control layer 3, a second transparent conductive layer 4 and a second transparent substrate 5 which are sequentially stacked. It is characterized in that: at a distance of m1 from the edge of the light - modulating film on the surface of the first transparent substrate 1 or the surface of the second transparent substrate 5, and m1≥0, there is a first isolation region 6 with a width of n1. Among them, the first isolation region 6 penetrates through the first transparent substrate 1, the first transparent conductive layer 2 and the light - control layer 3, or the first isolation region 6 penetrates through the second transparent substrate 5, the second transparent conductive layer 4 and the light - control layer 3.

[0040] On the basis of the above - mentioned solution, as Figures 4 to 7As shown, at a distance of m2 from the edge of the dimming film on the surface of the second transparent substrate 5 or the surface of the first transparent substrate 1, where m2 ≥ 0, there is a second isolation area 7 with a width of n2. Among them, the second isolation area 7 penetrates through the first transparent substrate 1, the first transparent conductive layer 2, and the light control layer 3, or the second isolation area 7 penetrates through the second transparent substrate 5, the second transparent conductive layer 4, and the light control layer 3; the projection distance between the second isolation area 7 and the first isolation area 6 is c, where c is greater than 0 mm.

[0041] Specifically, m1 satisfies 5 mm ≤ m1 ≤ 50 mm, and m2 satisfies 5 mm ≤ m2 ≤ 50 mm.

[0042] Specifically, n1 satisfies 5 mm ≤ n1 ≤ 50 mm, and n2 satisfies 5 mm ≤ n2 ≤ 50 mm.

[0043] Specifically, the projection distance c satisfies 5 mm ≤ c ≤ 50 mm.

[0044] In addition, the first isolation area 6 penetrates through from the first transparent substrate 1 and the second isolation area 7 penetrates through from the second transparent substrate 5; or the first isolation area 6 penetrates through from the second transparent substrate 5 and the second isolation area 7 penetrates through from the first transparent substrate 1.

[0045] Specifically, the first isolation area 6 penetrates through from the first transparent substrate 1 to the second transparent conductive layer 4, and the second isolation area 7 penetrates through from the second transparent substrate 5 to the first transparent conductive layer 2; or the first isolation area 6 penetrates through from the second transparent substrate 5 to the first transparent conductive layer 2, and the second isolation area 7 penetrates through from the first transparent substrate 1 to the second transparent conductive layer 4.

[0046] Specifically, the first isolation area 6 penetrates through from the first transparent substrate 1 to the second transparent substrate 5 but does not penetrate the second transparent substrate 5, and the second isolation area 7 penetrates through from the second transparent substrate 5 to the first transparent substrate 1 but does not penetrate the first transparent substrate 1; or the first isolation area 6 penetrates through from the second transparent substrate 5 to the first transparent substrate 1 but does not penetrate the first transparent substrate 1, and the second isolation area 7 penetrates through from the first transparent substrate 1 to the second transparent substrate 5 but does not penetrate the second transparent substrate 5.

[0047] In addition, both the first isolation area 6 and the second isolation area 7 each enclose a closed area.

[0048] Specifically, the thickness of the light control layer 3 is d, and the relationship between d and n1 satisfies that d:n1 is in the range of 1:1 to 1:10, and the relationship between d and n2 satisfies that d:n2 is in the range of 1:1 to 1:10.

[0049] The materials of the first isolation region 6 and the second isolation region 7 are one or more of epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic resin, butyl rubber, and organic siloxane polymer.

[0050] Specifically, the materials of the first isolation region 6 and the second isolation region 7 are organic siloxane polymers, which are formed by cross-linking and curing of curable organic siloxane oligomers.

[0051] Specifically, the organosiloxane polymer is formed by UV-curing a UV-curable organosiloxane oligomer.

[0052] Specifically, the UV-curable organosiloxane oligomer is selected from at least one of an organosiloxane oligomer containing an acryloxy group and an organosiloxane oligomer containing an epoxy group.

[0053] Preferably, the light control layer 3 is selected from a suspended particle light control layer, a polymer dispersed liquid crystal light control layer, or an electrochromic light control layer.

[0054] Furthermore, the longitudinal section of the first isolation region 6 is at least one of rectangular, V-shaped, U-shaped, trapezoidal or I-shaped; the longitudinal section of the second isolation region 7 is at least one of rectangular, V-shaped, U-shaped, trapezoidal or I-shaped.

[0055] The utility model also discloses a dimming glass, such as Figure 8 As shown, it includes a first glass plate 8 and a second glass plate 9, and the above-mentioned dimming film is arranged between the first glass plate 8 and the second glass plate 9.

[0056] In addition, a first interlayer 10 is disposed between the first glass plate 8 and the dimming film, and / or a second interlayer 11 is disposed between the second glass plate 9 and the dimming film.

[0057] Specifically, there is no special restriction on the types of the first glass plate and the second glass plate, and they can be conventional dimming glass well known to those skilled in the art, and can be ordinary glass such as inorganic glass, organic glass, such as PC plate, PMMA plate, etc., or functional glass such as UV blocking glass, IR blocking glass, Low-E glass, tempered glass or antibacterial glass, etc., and can also be selected from colored glass such as gray glass, brown glass, etc.

[0058] Specifically, there is no special limitation on the type of the interlayer material, and it can be a conventional adhesive film for dimming glass well-known to those skilled in the art, such as an EVA adhesive film, a TPU adhesive film or a PVB adhesive film; it can also be a functional adhesive film, such as a UV-blocking EVA adhesive film, a UV-blocking TPU adhesive film or a UV-blocking PVB adhesive film, an infrared-blocking EVA adhesive film, an infrared-blocking TPU adhesive film or an infrared-blocking PVB adhesive film; it can also be an EVA adhesive film, a TPU adhesive film or a PVB adhesive film with a color.

[0059] Preferably, the interlayer material is selected from at least one of an EVA adhesive film, a TPU adhesive film and a PVB adhesive film.

[0060] Specifically, there is no special limitation on the method of laminating treatment for preparing the dimming glass, and it can be a conventional laminating method for dimming glass in the art, such as laminating in a laminator, or laminating in an autoclave or a laminating box / furnace.

[0061] Specifically, the laminating temperature for the laminating treatment is 90-130 °C, the relative laminating pressure is 0.1-1.2 MPa, and the laminating time is 30-120 minutes.

[0062] In the specific implementation process of the present invention, grooves with a certain shape and depth can be dug on the surface of the first transparent substrate 1 and / or the second transparent substrate 5 at a certain distance from the edge of the dimming film by means of a mechanical knife, laser, etc. on the dimming film, and then a curable organosiloxane oligomer is filled, and an isolation area is formed after crosslinking and curing. It can be filled by a dispensing machine, and the filled material can cover the groove space or extend to the surface layer of the transparent substrate or beyond the outer periphery of the dimming film.

[0063] The present invention tests the water vapor barrier effect of the dimming glass through a boiling water experiment.

[0064] Boiling water test experiment: After boiling the prepared dimming glass in hot water at 100 °C for 8 hours, visually check whether there is any change in the appearance of the dimming glass. Poor water vapor barrier effect will cause different degrees of dimming failure areas around the dimming film. Use a ruler to measure the width of the dimming failure area. The larger the width value of the dimming failure area, the worse the water vapor barrier performance.

[0065]

Example 1

[0066] As Figure 2 shown, the suspended particle dimming film, n1 is 3 mm, m1 is 5 mm, and the isolation area material is an organosiloxane polymer.

[0067] In the specific implementation process, first, a rectangular groove with a width of 3 mm is dug on the surface of the first transparent substrate on one side of the dimming film at a distance of 5 mm from the edge of the dimming film on the suspended particle dimming film through a mechanical knife, and the residues in the groove are cleaned. Then, an acrylic-modified silicone oligomer premixed with 3% of photoinitiator 819 is filled into the groove through a dispensing machine, and an isolation zone is formed after UV crosslinking and curing.

[0068] Two ultra-clear glasses, two EVA interlayers, and 1 layer of dimming film are stacked in sequence according to the Figure 8 structure, and laminated in an autoclave. The lamination temperature is 110 °C, the relative lamination pressure is 0.6 MPa, and the lamination time is 120 minutes.

[0069] The results of the boiling water test are shown in Table 1.

[0070]

Example 2

[0071] As Figure 3 shown, for the polymer dispersed liquid crystal dimming film, n1 is 4 mm, m1 is 3 mm, and the isolation zone material is a silicone polymer.

[0072] In the specific implementation process, first, a rectangular groove with a width of 4 mm is dug on the surface of the first transparent substrate on one side of the dimming film at a distance of 3 mm from the edge of the dimming film on the polymer dispersed liquid crystal dimming film through a laser, and the residues in the groove are cleaned. Then, an acrylic-modified silicone oligomer premixed with 3% of photoinitiator 819 is filled into the groove through a dispensing machine, and an isolation zone is formed after UV crosslinking and curing.

[0073] Two ultra-clear glasses, two EVA interlayers, and 1 layer of dimming film are stacked in sequence according to the Figure 8 structure, and laminated in an autoclave. The lamination temperature is 110 °C, the relative lamination pressure is 0.6 MPa, and the lamination time is 120 minutes.

[0074] The results of the boiling water test are shown in Table 1.

[0075] Table 1

[0076] As can be seen from the results in Table 1, in

Example 1

Example 2

Example 1

[0077] The above is only the preferred implementation mode of the present invention, and does not impose any form of limitation on the invention. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A dimming film, comprising a first transparent substrate (1), a first transparent conductive layer (2), a light control layer (3), a second transparent conductive layer (4) and a second transparent substrate (5) which are stacked in sequence, characterized in that: The surface of the first transparent substrate (1) or the surface of the second transparent substrate (5) is at a distance m1 from the edge of the dimming film, and m1≥0, and has a first isolation region (6) with a width n1, wherein the first isolation region (6) runs through the first transparent substrate (1), the first transparent conductive layer (2) and the light control layer (3), or the first isolation region (6) runs through the second transparent substrate (5), the second transparent conductive layer (4) and the light control layer (3).

2. The dimming film according to claim 1, characterized in that: The surface of the second transparent substrate (5) or the surface of the first transparent substrate (1) is at a distance m2 from the edge of the dimming film, and m2 ≥ 0, and has a second isolation region (7) with a width n2, wherein the second isolation region (7) penetrates the first transparent substrate (1), the first transparent conductive layer (2) and the light control layer (3), or the second isolation region (7) penetrates the second transparent substrate (5), the second transparent conductive layer (4) and the light control layer (3); the projection distance between the second isolation region (7) and the first isolation region (6) is c, wherein c is greater than 0 mm.

3. The dimming film according to claim 2, characterized in that: The m1 satisfies 5mm≤m1≤50mm, and the m2 satisfies 5mm≤m2≤50mm.

4. The dimming film according to claim 2, characterized in that: The n1 satisfies 5mm≤n1≤50mm, and the n2 satisfies 5mm≤n2≤50mm.

5. The dimming film according to claim 2, characterized in that: The projection distance c satisfies 5mm≤c≤50mm.

6. The dimming film according to claim 2, characterized in that: The first isolation region (6) starts from the first transparent substrate (1) and the second isolation region (7) starts from the second transparent substrate (5); or the first isolation region (6) starts from the second transparent substrate (5) and the second isolation region (7) starts from the first transparent substrate (1).

7. The dimming film according to claim 6, characterized in that: The first isolation region (6) starts from the first transparent substrate (1) and penetrates to the second transparent conductive layer (4), and the second isolation region (7) starts from the second transparent substrate (5) and penetrates to the first transparent conductive layer (2); or the first isolation region (6) starts from the second transparent substrate (5) and penetrates to the first transparent conductive layer (2), and the second isolation region (7) starts from the first transparent substrate (1) and penetrates to the second transparent conductive layer (4).

8. The dimming film according to claim 7, characterized in that: The first isolation region (6) starts from the first transparent substrate (1) and extends to the second transparent substrate (5) but does not penetrate the second transparent substrate (5), and the second isolation region (7) starts from the second transparent substrate (5) and extends to the first transparent substrate (1) but does not penetrate the first transparent substrate (1); or the first isolation region (6) starts from the second transparent substrate (5) and extends to the first transparent substrate (1) but does not penetrate the first transparent substrate (1), and the second isolation region (7) starts from the first transparent substrate (1) and extends to the second transparent substrate (5) but does not penetrate the second transparent substrate (5).

9. The dimming film according to claim 2, characterized in that: The first isolation area (6) and the second isolation area (7) each enclose a closed area.

10. The dimming film according to claim 2, characterized in that: The thickness of the light control layer (3) is d, and the relationship between d and n1 satisfies that d:n1 is within the range of 1:1 to 1:10, and the relationship between d and n2 satisfies that d:n2 is within the range of 1:1 to 1:

10.

11. The dimming film according to claim 2, characterized in that: The material of the first isolation region (6) and the second isolation region (7) is one of epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic resin, butyl rubber, and organic siloxane polymer.

12. The dimming film according to claim 11, characterized in that: The material of the first isolation region (6) and the second isolation region (7) is an organic siloxane polymer, which is formed by cross-linking and curing of a curable organic siloxane oligomer.

13. The dimming film according to claim 12, characterized in that: The organosiloxane polymer is formed by UV-curing a UV-curable organosiloxane oligomer.

14. The dimming film according to claim 13, characterized in that: The UV-curable organosiloxane oligomer is selected from an organosiloxane oligomer containing an acryloxy group and an organosiloxane oligomer containing an epoxy group.

15. The dimming film according to claim 1, characterized in that: The light control layer (3) is selected from a suspended particle light control layer, a polymer dispersed liquid crystal light control layer, or an electrochromic light control layer.

16. The dimming film according to claim 2, characterized in that: The longitudinal section of the first isolation region (6) is at least one of a rectangular, V-shaped, U-shaped, trapezoidal or I-shaped shape; the longitudinal section of the second isolation region (7) is at least one of a rectangular, V-shaped, U-shaped, trapezoidal or I-shaped shape.

17. A dimming glass, characterized in that; The invention comprises a first glass plate (8) and a second glass plate (9), and a dimming film according to any one of claims 1 to 16 arranged between the first glass plate (8) and the second glass plate (9).

18. The switchable glass according to claim 17, characterized in that: A first interlayer (10) is provided between the first glass plate (8) and the dimming film, and / or a second interlayer (11) is provided between the second glass plate (9) and the dimming film.

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