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. The liquid crystal display panel is characterized in that an enclosure area with the width of m and an isolation area with the width of n located on the inner side of the enclosure area are arranged at the position, B away from the edge of the dimming film, of the first transparent substrate, B is larger than or equal to 0 mm, and the enclosure area and the isolation area penetrate through the first transparent substrate, the first 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 dimming films, in particular to a dimming film and dimming glass. Background Art

[0002] The key part of the dimming film and dimming glass is the light control layer. The light control layer, such as a suspended particle light control layer or a polymer dispersed liquid crystal 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 decline. 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 moisture inside the film first. This solution still has problems such as 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] Aiming at the above problems, the utility model aims to provide a dimming film and 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. It is characterized in that: a surrounding area with a width of m and an isolation area with a width of n inside the surrounding area are provided at a distance of B from the edge of the dimming film on the first transparent substrate, and B≥0mm. The surrounding area and the isolation area penetrate through the first transparent substrate, the first transparent conductive layer and the light control layer.

[0006] Preferably, the surrounding area and the isolation area penetrate through the first transparent substrate, the first transparent conductive layer, the light control layer and the second transparent conductive layer.

[0007] Preferably, the surrounding area and the isolation area penetrate through the first transparent substrate, the first transparent conductive layer, the light control layer and the second transparent conductive layer, and penetrate into the second transparent substrate but do not penetrate through the second transparent substrate.

[0008] Preferably, the surrounding area is a closed area arranged in a circle around the dimming film.

[0009] Preferably, the isolation area is a closed area arranged in a circle around the dimming film.

[0010] Preferably, the width m of the surrounding area satisfies m≥5mm, and the width n of the isolation area satisfies n≥5mm.

[0011] Preferably, the width m of the enclosure area satisfies 50 mm ≥ m ≥ 5 mm; the width n of the isolation area satisfies 50 mm ≥ n ≥ 5 mm.

[0012] Preferably, B satisfies 50 mm ≥ B ≥ 0 mm.

[0013] Preferably, the thickness of the light control layer is d, and the relationship between d and n satisfies that d:n is in the range of 1:20 to 1:300.

[0014] Preferably, the material of the isolation area is silicone oxygen alkane polymer.

[0015] Preferably, the silicone oxygen alkane polymer is formed by crosslinking and curing of curable silicone oxygen alkane oligomer.

[0016] Preferably, the silicone oxygen alkane polymer is formed by UV curing of UV curable silicone oxygen alkane oligomer.

[0017] Preferably, the UV curable silicone oxygen alkane oligomer is selected from at least one of acryloxy group-containing silicone oxygen alkane oligomer and epoxy group-containing silicone oxygen alkane oligomer.

[0018] Preferably, the material of the enclosure area is selected from one or more of epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic resin, butyl rubber, and silicone oxygen alkane polymer.

[0019] Preferably, the material of the enclosure area is silicone oxygen alkane polymer; the silicone oxygen alkane polymer is formed by crosslinking and curing of curable silicone oxygen alkane oligomer.

[0020] Preferably, the silicone oxygen alkane polymer is formed by UV curing of UV curable silicone oxygen alkane oligomer.

[0021] Preferably, the UV curable silicone oxygen alkane oligomer is selected from at least one of acryloxy group-containing silicone oxygen alkane oligomer and epoxy group-containing silicone oxygen alkane oligomer.

[0022] Preferably, the light control layer is a suspended particle light control layer or a polymer dispersed liquid crystal light control layer or an electrochromic light control layer.

[0023] Preferably, the longitudinal cross-sectional shape of the isolation area is at least one of rectangle, V shape, U shape, trapezoid, I shape and irregular shape; the longitudinal cross-sectional shape of the enclosure area is at least one of rectangle, V shape, U shape, trapezoid, I shape and irregular shape.

[0024] The present utility model provides a dimming glass, which is characterized by comprising a first glass plate and a second glass plate, and the dimming film as described above disposed between the first glass plate and the second glass plate.

[0025] Preferably, a first interlayer is disposed between the first glass plate and the dimming film, and / or a second interlayer is disposed between the second glass plate and the dimming film.

[0026] Preferably, there are no special restrictions on the types of the first glass plate and the second glass plate, and they can be ordinary glasses well-known to those skilled in the art for conventional dimming glass, such as ordinary glass like inorganic glass and organic glass, and the organic glass like PC board, PMMA board, etc., or can be functional glasses, such as UV-blocking glass, IR-blocking glass, Low-E glass, tempered glass or antibacterial glass, etc., or can also be selected from colored glasses such as gray glass and brown glass.

[0027] Preferably, there are no special restrictions on the types of the interlayer materials, and they can be ordinary adhesive films well-known to those skilled in the art for conventional dimming glass, such as EVA adhesive film, TPU adhesive film or PVB adhesive film; or can be functional adhesive films, such as UV-blocking EVA adhesive film, UV-blocking TPU adhesive film or UV-blocking PVB adhesive film, infrared-blocking EVA adhesive film, infrared-blocking TPU adhesive film or infrared-blocking PVB adhesive film; or can also be selected from colored EVA adhesive film, TPU adhesive film or PVB adhesive film.

[0028] Preferably, the interlayer material is selected from at least one of EVA adhesive film, TPU adhesive film and PVB adhesive film.

[0029] Preferably, there are no special restrictions on the method of the 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.

[0030] Preferably, the laminating temperature of 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.

[0031] The present utility model can effectively seal and protect the light control area inside the dimming film, and avoid the decline of dimming stability caused by the influence of humidity and air on the dimming film due to poor sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of the dimming film of the present utility model;

[0033] Figure 2 is Figure 1 a cross-sectional view along the A-A direction;

[0034] Figure 3 Another cross-sectional view along the A-A direction; Figure 1

[0035] Figure 4 It is the second structural schematic diagram of the light-dimming film of the present utility model;

[0036] Figure 5 It is Figure 4 A cross-sectional view along the B-B direction;

[0037] Figure 6 It is a structural schematic diagram of the light-dimming glass of the present utility model;

[0038] Wherein: 1 - the first transparent substrate; 2 - the first transparent conductive layer; 3 - the light control layer; 4 - the second transparent conductive layer; 5 - the second transparent substrate; 6 - the enclosure area; 7 - the isolation area; 8 - the first glass plate; 9 - the second glass plate; 10 - the first interlayer; 11 - the second interlayer. Specific embodiments

[0039] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0040] As Figures 1 to 3 shown, the present utility model provides a light-dimming film, which includes 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 that are sequentially stacked. A width of m of the enclosure area 6 and an isolation area 7 with a width of n located inside the enclosure area 6 are provided at a distance of B from the edge of the light-dimming film, and B≥0mm. The enclosure area 6 and the isolation area 7 penetrate through the first transparent substrate 1, the first transparent conductive layer 2, and the light control layer 3.

[0041] In the above solution, the enclosure area 6 and the isolation area 7 penetrate through the first transparent substrate 1, the first transparent conductive layer 2, the light control layer 3, and the second transparent conductive layer 4.

[0042] Specifically, the enclosure area 6 and the isolation area 7 penetrate through the first transparent substrate 1, the first transparent conductive layer 2, the light control layer 3, and the second transparent conductive layer 4, and penetrate into the second transparent substrate 5 but do not penetrate through the second transparent substrate 5.

[0043] As Figure 4 and Figure 5 shown, specifically, the enclosure area 6 is a closed area arranged in a circle around the light-dimming film.

[0044] Specifically, the isolation area 7 is a closed area arranged in a circle around the light-dimming film.

[0045] Specifically, the width m of the enclosure area 6 satisfies m≥5mm, and the width n of the isolation area 7 satisfies n≥5mm.

[0046] ​Specifically, the width m of the enclosure area 6 satisfies 50 mm ≥ m ≥ 5 mm; the width n of the isolation area 7 satisfies 50 mm ≥ n ≥ 5 mm.

[0047] Specifically, the B satisfies 50 mm ≥ B ≥ 0 mm.

[0048] In addition, the thickness of the light control layer 3 is d, and the relationship between d and n satisfies that d:n is in the range of 1:20 to 1:300.

[0049] Specifically, the material of the isolation area 7 is an organosiloxane polymer.

[0050] Specifically, the organosiloxane polymer is formed by crosslinking and curing a curable organosiloxane oligomer.

[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 acryloxy group-containing organosiloxane oligomer and an epoxy group-containing organosiloxane oligomer.

[0053] In addition, the material of the enclosure area 6 is selected from one or more of epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic resin, butyl rubber, and organosiloxane polymer.

[0054] Specifically, the material of the enclosure area 6 is an organosiloxane polymer; the organosiloxane polymer is formed by crosslinking and curing a curable organosiloxane oligomer.

[0055] Specifically, the organosiloxane polymer is formed by UV curing a UV-curable organosiloxane oligomer.

[0056] Specifically, the UV-curable organosiloxane oligomer is selected from at least one of an acryloxy group-containing organosiloxane oligomer and an epoxy group-containing organosiloxane oligomer.

[0057] Specifically, the light control layer 3 is a suspended particle light control layer or a polymer dispersed liquid crystal light control layer or an electrochromic light control layer.

[0058] Specifically, the longitudinal cross-sectional shape of the isolation area 7 is at least one of a rectangle, a V shape, a U shape, a trapezoid, a H shape, and an irregular shape; the longitudinal cross-sectional shape of the enclosure area 6 is at least one of a rectangle, a V shape, a U shape, a trapezoid, a H shape, and an irregular shape.

[0059] The utility model provides a dimming glass, which is characterized by comprising a first glass plate 8 and a second glass plate 9, and a dimming film as described above disposed between the first glass plate 8 and the second glass plate 9.

[0060] As Figure 6 shown, further, 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.

[0061] Specifically, there are no special restrictions on the types of the first glass plate and the second glass plate, and they can be conventional glasses for dimming glass well-known to those skilled in the art, such as ordinary glasses like inorganic glass and organic glass, and the organic glass such as PC board and PMMA board, etc., or they can be functional glasses, such as UV-blocking glass, IR-blocking glass, Low-E glass, tempered glass or antibacterial glass, etc., or they can also be selected from colored glasses such as gray glass and brown glass.

[0062] Specifically, there are no special restrictions on the types of the interlayer materials, and they can be conventional adhesive films for dimming glass well-known to those skilled in the art, such as EVA adhesive film, TPU adhesive film or PVB adhesive film; or they can be functional adhesive films, such as UV-blocking EVA adhesive film, UV-blocking TPU adhesive film or UV-blocking PVB adhesive film, infrared-blocking EVA adhesive film, infrared-blocking TPU adhesive film or infrared-blocking PVB adhesive film; or they can also be selected from colored EVA adhesive film, TPU adhesive film or PVB adhesive film.

[0063] Preferably, the interlayer material is selected from at least one of EVA adhesive film, TPU adhesive film and PVB adhesive film.

[0064] Specifically, there are no special restrictions 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.

[0065] Specifically, the laminating temperature of 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.

[0066] In the specific implementation process of the utility model, first, by means of a mechanical knife, laser, etc. on the dimming film, at a position on the surface of the first transparent substrate 1 at a distance B from the edge of the dimming film, the first transparent substrate 1, the first transparent conductive layer 2, the light control layer 3 with a width of m + n of the dimming film are removed, and even the first transparent conductive layer 4, and even part of the second transparent substrate 5 are removed to form a groove with a width of m + n.

[0067] Then, before filling the material precursor of the enclosure area with a width of m closely along the outer edge in the groove, the material precursor of the enclosure area is selected from one or more of a photocurable or thermosetting epoxy resin precursor, a polyurethane precursor, a polyimide resin precursor, a polystyrene resin precursor, an acrylic resin precursor, a modified acrylic resin precursor, a butyl rubber precursor, and an organosiloxane polymer precursor, preferably a UV-curable organosiloxane polymer precursor. Then, in the groove formed after filling the material of the enclosure area, fill the material precursor of the isolation area. The material precursor of the isolation area is selected from a photocurable or thermosetting organosiloxane polymer precursor, preferably a UV-curable organosiloxane polymer precursor.

[0068] The material precursor of the enclosure area and the material precursor of the isolation area can be cured simultaneously or successively. The material precursor of the enclosure area can be cured first and then the material precursor of the isolation area, and vice versa.

[0069] The material precursor of the enclosure area can be filled by a dispensing machine, and the material of the enclosure area can be higher than the outer surface of the first transparent substrate.

[0070] The material precursor of the isolation area can be filled by a dispensing machine. The material of the isolation area can cover the groove space, or can extend to the surface of the first transparent substrate or beyond the outer perimeter of the light control film, or on the enclosure.

[0071] Of course, the material precursor of the isolation area can also be filled first, and then the material precursor of the enclosure area.

[0072] As described above, it is obvious to set the isolation area and the enclosure area on the outer surface of the first transparent substrate of the light control film, and also to set the isolation area and the enclosure area on the outer surface of the second transparent substrate of the light control film. The outer surfaces of the first transparent substrate and the second transparent substrate are only for conveniently describing the two surfaces of the light control film, and are not restrictive conditions, and can be described by up and down, left and right, front and back, etc.

[0073] The utility model tests the water vapor barrier effect of the light control glass through a boiling water experiment.

[0074] Boiling water test experiment: After boiling the prepared light control glass in hot water at 100 °C for 8 hours, visually check whether there is any change in the appearance of the light control glass. If the water vapor barrier effect is poor, it will cause different degrees of light control failure areas around the light control film. Use a ruler to measure the width of the light control failure area. The larger the width value of the light control failure area, the worse the water vapor barrier performance.

[0075]

Example 1

[0076] As Figure 2 shown, for the suspended particle light control film, the thickness d of the light control layer is 100 μm, n is 6 mm, d:n = 1:60, m is 5 mm, the material of the enclosure area is epoxy resin, and the material of the isolation area is an organosiloxane polymer.

[0077] In the specific implementation process, first, a mechanical knife is used on the suspended particle dimming film to dig out a rectangular semi-cut area with a width of 11 mm on the surface of the first transparent substrate on one side of the dimming film, 0 mm away from the edge of the dimming film. The residue in the semi-cut area is cleaned up. An acrylic-modified silicone oligomer pre-mixed with 3% of 819 photoinitiator is filled in the inner side of the semi-cut area by a dispensing machine, and a 5-mm-wide isolation area is formed through UV cross-linking and curing. Then, an AB-type epoxy resin adhesive is filled in the semi-cut area outside the isolation area by a dispensing machine, and a 6-mm-wide enclosure area is formed through thermal cross-linking and curing.

[0078] Two ultra-clear glasses, two EVA interlayers, and 1 layer of dimming film are stacked in sequence according to Figure 6 the structure, and lamination is carried out in an autoclave. The lamination temperature is 110 °C, the relative lamination pressure is 0.6 MPa, and the lamination time is 120 minutes.

[0079] The results of the boiling water test are shown in Table 1.

[0080]

Example 2

[0081] As Figure 3 shown, for the polymer-dispersed liquid crystal dimming film, the thickness d of the light control layer is 80 μm, n is 6 mm, d:n = 1:75, m is 6 mm, the material of the enclosure area is epoxy resin, and the material of the isolation area is silicone polymer.

[0082] In the specific implementation process, first, a mechanical knife is used on the polymer-dispersed liquid crystal to dig out a rectangular semi-cut area with a width of 12 mm on the surface of the first transparent substrate on one side of the dimming film, 0 mm away from the edge of the dimming film. The residue in the semi-cut area is cleaned up. An acrylic-modified silicone oligomer pre-mixed with 3% of 819 photoinitiator is filled in the inner side of the semi-cut area by a dispensing machine, and a 6-mm-wide isolation area is formed through UV cross-linking and curing. Then, an AB-type epoxy resin adhesive is filled in the semi-cut area outside the isolation area by a dispensing machine, and a 6-mm-wide enclosure area is formed through thermal cross-linking and curing.

[0083] Two ultra-clear glasses, two EVA interlayers, and 1 layer of dimming film are stacked in sequence according to Figure 6 the structure, and lamination is carried out in an autoclave. The lamination temperature is 110 °C, the relative lamination pressure is 0.6 MPa, and the lamination time is 120 minutes.

[0084] The results of the boiling water test are shown in Table 1.

[0085] Table 1

[0086] Embodiment Width of the failure zone on the side with the isolation zone and the enclosure zone Width of the failure zone on the side without the isolation zone and the enclosure zone Embodiment 1 0 mm 5 mm Embodiment 2 0 mm 6 mm

[0087] As can be seen from the results in Table 1, in [Example 1], after boiling in hot water at 100°C for 8 hours, there is no obvious failure area on the side of the light-dimming film with the isolation area and the enclosure area; while on the side without the isolation area and the enclosure area, the width of the failure area of the light-dimming film is about 5 mm. The effect of [Example 2] is equivalent to that of [Example 1]. It can be seen that setting the isolation area and the enclosure area has a significant effect on preventing the harm of water vapor to the light-dimming film.

[0088] The above is only a preferred embodiment 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 first transparent substrate (1) is provided with a blocking area (6) with a width of m and an isolation area (7) with a width of n located inside the blocking area (6) at a distance B from the edge of the dimming film, and B ≥ 0 mm, and the blocking area (6) and the isolation area (7) penetrate the first transparent substrate (1), the first transparent conductive layer (2), and the light control layer (3).

2. The dimming film according to claim 1, characterized in that: The enclosure area (6) and the isolation area (7) penetrate the first transparent substrate (1), the first transparent conductive layer (2), the light control layer (3), and the second transparent conductive layer (4).

3. The dimming film according to claim 1, characterized in that: The enclosure area (6) and the isolation area (7) penetrate the first transparent substrate (1), the first transparent conductive layer (2), the light control layer (3), the second transparent conductive layer (4), and penetrate into the second transparent substrate (5) but do not penetrate the second transparent substrate (5).

4. The dimming film according to claim 1, characterized in that: The enclosure area (6) is a closed area arranged around the dimming film.

5. The dimming film according to claim 1, characterized in that: The isolation area (7) is a closed area arranged around the dimming film.

6. The dimming film according to claim 1, characterized in that: The width m of the enclosure area (6) satisfies m≥5 mm, and the width n of the isolation area (7) satisfies n≥5 mm.

7. The dimming film according to claim 6, characterized in that: The width m of the enclosure area (6) satisfies 50 mm ≥ m ≥ 5 mm; and the width n of the isolation area (7) satisfies 50 mm ≥ n ≥ 5 mm.

8. The dimming film according to claim 1, characterized in that: The B satisfies 50mm≥B≥0mm.

9. The dimming film according to claim 1, characterized in that: The thickness of the light control layer (3) is d, and the relationship between d and n satisfies that d:n is in the range of 1:20 to 1:

300.

10. The dimming film according to claim 1, characterized in that: The material of the isolation region (7) is an organic siloxane polymer.

11. The dimming film according to claim 10, characterized in that: The organosiloxane polymer is formed by cross-linking and curing of a curable organosiloxane oligomer.

12. The dimming film according to claim 11, characterized in that: The cross-linking and curing of the organosiloxane polymer is UV curing.

13. The dimming film according to claim 12, 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.

14. The dimming film according to claim 1, characterized in that: The material of the enclosure area (6) is selected from epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic resin, butyl rubber, and organic siloxane polymer.

15. The dimming film according to claim 1, characterized in that: The light control layer (3) is 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 1, characterized in that: The longitudinal section of the isolation area (7) is one of a rectangular, V-shaped, U-shaped, trapezoidal, and I-shaped; the longitudinal section of the enclosure area (6) is one of a rectangular, V-shaped, U-shaped, trapezoidal, and I-shaped.

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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