Dimming film and dimming glass

Abstract

The invention provides a dimming film and dimming glass. By introducing the isolation area on the transparent conductive layer and changing the direction of the circuit in the dimming film, the conductive lead can be installed on the same layer of conductive film, the step of overturning the dimming film in the production process is omitted, the production efficiency is improved, and meanwhile other production processes are not changed. By adopting the technical scheme of the invention, the manufacturing steps of the conductive lead can be simplified, and meanwhile, the qualification rate of a dimming film product is improved.

Description

Technical Field

[0001] The present invention relates to the field of electronic light-controlling materials, and in particular to a dimming film and a dimming glass. Background Art

[0002] A dimming film is an electronic light-control device. It is mainly composed of a light-control layer between two layers of transparent conductive films. When the electric field is turned on, the arrangement or state of the material in the light-control layer changes, thereby changing the light transmittance of the device, such as from low transmittance to high transmittance, or from high transmittance to low transmittance. Through the action of the electric field, a rapid conversion between the on-state and the off-state can be achieved. According to the different light-control mechanisms of the light-control layer, the dimming film can be divided into suspended particle dimming film, polymer dispersed liquid crystal dimming film, electrochemical reaction dimming film, etc.

[0003] The dimming films known in the art, such as polymer dispersed liquid crystal dimming films, suspended particle dimming films, electrochromic dimming films, etc., generally have at least five-layer laminated structures, namely a first transparent substrate, a first transparent conductive layer, a light control layer, a second transparent conductive layer, and a second transparent substrate. In the use scenario, in order to electrically connect the dimming film to an external power source, at least two conductive leads are required to be electrically connected to the first transparent conductive layer and the second transparent conductive layer respectively, and then the external power source is electrically connected to the transparent conductive layer through the conductive leads, so that the dimming film can be driven by the external power source.

[0004] As is known to all, when making the conductive lead electrically connected to the transparent conductive layer, it is generally necessary to apply conductive silver paste, conductive glue and other auxiliary materials on the local position near the edge of the transparent conductive layer, and then adhere the conductive lead to the conductive silver paste, conductive glue and other auxiliary materials. However, the two transparent conductive layers of the dimming film are arranged opposite to each other. In order to achieve the above operation, that is, the conductive leads are electrically connected to the two transparent conductive layers arranged opposite to each other, in the process of applying the conductive silver paste, conductive glue and other auxiliary materials and adhering the conductive leads, the whole dimming film needs to be flipped over for the convenience of equipment or personnel to operate, which increases the difficulty of the process and equipment investment, and also reduces the production efficiency. At the same time, due to flipping the whole dimming film, some damages such as bumps are inevitably caused, which reduces the qualified rate of the product.

[0005] The present invention introduces an isolation area on the transparent conductive layer to change the circuit direction inside the dimming film, so that the conductive leads can be installed on the same layer of conductive film, omitting the dimming film flipping step in the production process, improving production efficiency, and other production processes remain unchanged. The technical solution of the present invention can simplify the production steps of the conductive leads and improve the qualified rate of dimming film products. Summary of the invention

[0006] The inventors have proposed a dimming film and a dimming film glass in which conductive leads can be installed on the same layer of conductive film, mainly to solve the problem that the dimming film needs to be flipped during the production process, which will cause a decrease in the product qualification rate.

[0007] According to a first aspect of the present invention, a dimming film is provided, comprising a first transparent substrate (1), a first transparent conductive layer (2), a light control layer (3), a second transparent conductive layer (4), a second transparent substrate (5) and a conductive lead (6) which are sequentially stacked, wherein the first transparent conductive layer (2) or the second transparent conductive layer (4) is provided with at least one isolation region (7), wherein the isolation region (7) divides the first transparent conductive layer (2) or the second transparent conductive layer (4) into at least two regions which are electrically non-conductive with each other, and the conductive lead (6) is electrically connected to the first transparent conductive layer (2) provided with the isolation region (7) or the second transparent conductive layer (4) provided with the isolation region (7), and the conductive lead (6) is provided on the same transparent conductive layer.

[0008] Furthermore, there is no electrical conduction between any regions of the first transparent conductive layer (2) and the second transparent conductive layer (4).

[0009] Furthermore, there are at least two conductive leads (6), which are respectively electrically connected to mutually electrically non-conductive regions separated by the isolation region (7) on the same layer of the first transparent conductive layer (2) where the isolation region (7) is provided or the second transparent conductive layer (4) where the isolation region (7) is provided.

[0010] Furthermore, the conductive lead (6) is electrically connected to a corresponding electrode of a power source via a wire.

[0011] In the present invention, the power source is not particularly limited, and can be a conventional power source used for dimming films well known to those skilled in the art.

[0012] Furthermore, the conductive lead (6) comprises at least one of a metal wire, a metal conductive mesh, and a flexible printed circuit board (FPC).

[0013] In the present invention, there is no particular limitation on the method of arranging the conductive lead (6) on the transparent conductive layer, and the conventional method used for dimming films well known to those skilled in the art may be used.

[0014] Furthermore, the width of the isolation region (7) is 1 μm to 1 mm.

[0015] Furthermore, the width of the isolation region (7) is 2 μm to 500 μm.

[0016] Furthermore, the isolation area (7) is in the shape of a straight line or a curve, or a combination thereof.

[0017] Furthermore, there is no specific requirement for the shape of the isolation area (7), and it can be a closed curve or a non-closed curve.

[0018] Furthermore, the surface of the first transparent conductive layer (2) and / or the second transparent conductive layer (4) facing the light control layer (3) is covered with an adhesive layer; the adhesive layer material includes at least one of epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic resin or silicone resin.

[0019] Furthermore, the light control layer (3) is selected from at least one of a suspended particle light control layer, a polymer dispersed liquid crystal light control layer or an electrochromic light control layer.

[0020] Furthermore, the first transparent substrate (1) and the second transparent substrate (5) are glass plates.

[0021] Furthermore, the first transparent substrate (1) and the second transparent substrate (5) are transparent plastic sheets.

[0022] Furthermore, the first transparent substrate (1) and the second transparent substrate (5) are PET films.

[0023] Furthermore, the first transparent conductive layer (2) and the second transparent conductive layer (4) are each independently selected from at least one of an ITO conductive layer, a FZO conductive layer, an IZO conductive layer, a GZO conductive layer, an AZO conductive layer, a PEDOT conductive layer, a nano-Ag wire conductive layer, conductive graphene and a nano-Cu wire conductive layer.

[0024] Furthermore, the isolation region (7) is formed by etching the first transparent conductive layer (2) or the second transparent conductive layer (4).

[0025] Furthermore, the etching is one or more of ion beam etching (IBE), deep silicon etching (DRIE), reactive ion etching (RIE), focused ion beam etching (FIB), inductively coupled plasma etching (ICP), microwave plasma etching, laser external etching, laser internal etching or chemical etching.

[0026] Furthermore, the etching is laser external etching and / or laser internal etching.

[0027] Furthermore, the laser external etching takes the first transparent substrate and the first transparent conductive layer as a separate entity, that is, takes the conductive film as the processing object, and etches from the first transparent conductive layer side to the first transparent substrate to form a dividing line, and the dividing line does not engrave to or does not penetrate the first transparent substrate. This dividing line area is referred to as the "isolation area" in the present invention; and / or, takes the second transparent substrate and the second transparent conductive layer as a separate entity, and etches from the second transparent conductive layer side to the second transparent substrate to form a dividing line, and the dividing line does not engrave to or does not penetrate the second transparent substrate. This dividing line area is referred to as the "isolation area" in the present invention.

[0028] Furthermore, the laser internal etching takes the entire dimming film as a whole, etches a dividing line from the first transparent substrate side to the first transparent conductive layer side, and the dividing line does not etch to or penetrate the second transparent substrate after etching through the first transparent conductive layer. This dividing line area is referred to as the "isolation area" in the present invention; or etches a dividing line from the second transparent substrate side to the second transparent conductive layer side, and the dividing line does not etch to or penetrate the first transparent substrate after etching through the second transparent conductive layer. This dividing line area is referred to as the "isolation area" in the present invention.

[0029] The basic principle of laser internal etching is to focus a low-power laser with high beam quality (usually ultraviolet laser, fiber laser) on a very small light spot, forming a high power density on the light spot, and making the light spot located in the transparent conductive layer, so that the transparent conductive layer at the light spot is instantly heated, while the transparent substrate and transparent conductive layer outside the light spot are not heated, so that a large stress is generated between the transparent conductive layer at the light spot and the transparent substrate and the transparent conductive layer outside the light spot, and the stress induces the transparent conductive layer at the light spot to be delaminated and peeled off, forming a dividing line, so that the transparent conductive layer on both sides of the dividing line is electrically non-conductive. The laser is processed in a non-contact manner, with high flexibility, high speed, no noise, small heat-affected area, and a very small light spot that can be focused to the laser wavelength level. The transparent conductive layer is etched along a predetermined design route through the transparent substrate of the dimming film to obtain a "cold processing" effect without carbonization.

[0030] A second aspect of the present invention provides a dimming glass comprising a first glass plate (8) and a second glass plate (9), and the aforementioned dimming film disposed between the first glass plate (8) and the second glass plate (9).

[0031] In the present invention, there is no special restriction on the types of the first glass plate and the second glass plate. They can be transparent glass for conventional dimming glass well known to those skilled in the art. They can be ordinary glass such as inorganic glass and organic glass, or functional glass such as UV blocking glass, IR blocking glass, Low-E glass, tempered glass or antibacterial glass, etc. They can also be selected from colored glass such as gray glass and brown glass.

[0032] Furthermore, 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.

[0033] In the present invention, there is no special restriction on the types of the first interlayer and the second interlayer, which are conventional interlayers for dimming glass well known to those skilled in the art, and may be EVA film, TPU film, PVB film, or functional film, such as UV-blocking EVA film, UV-blocking TPU film, UV-blocking PVB film, etc., or films with certain colors, such as gray EVA film, gray TPU film, gray PVB film, etc.

[0034] In the present invention, the method for manufacturing the dimming glass is not particularly limited, and can be a conventional laminating method of dimming glass in the art, such as laminating in a laminator, or laminating in an autoclave or a laminating box / furnace.

[0035] The third aspect of the present invention provides the use of the above-mentioned dimming film or the above-mentioned dimming glass in one or more of automobile window glass, skylight glass and glass curtain wall.

[0036] The present invention separates the conductive layer into at least two electrically non-conductive areas on a transparent conductive layer by setting an isolation area on the transparent conductive layer, thereby making it possible to install conductive leads on the same transparent conductive film, omitting the step of flipping the dimming film in the dimming film production process, thereby improving production efficiency and reducing product defective rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. The drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work.

[0038] Figure 1 A schematic diagram of the planar structure of a first transparent conductive layer provided by an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of the planar structure and circuit connection of a first transparent conductive layer provided by an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of the planar structure and circuit connection of a first transparent conductive layer provided by an embodiment of the present invention;

[0041] Figure 4 A schematic diagram of the planar structure of a first transparent conductive layer provided by an embodiment of the present invention;

[0042] Figure 5 A schematic diagram of the planar structure of a first transparent conductive layer provided by an embodiment of the present invention;

[0043] Figure 6 A schematic diagram of the planar structure of a first transparent conductive layer provided by an embodiment of the present invention;

[0044] Figure 7 A schematic diagram of a cross-sectional structure of a dimming film provided by an embodiment of the present invention;

[0045] Figure 8 A schematic diagram of a cross-sectional structure of a dimming glass provided by an embodiment of the present invention;

[0046] Among them, 1. first transparent substrate, 2. first transparent conductive layer, 3. light control layer, 4. second transparent conductive layer, 5. second transparent substrate, 6. conductive leads, 7. isolation area, 8. first glass plate, 9. second glass plate, 10. first interlayer, 11. second interlayer, A, B, C, D. areas on the transparent conductive layer that are not electrically conductive to each other. DETAILED DESCRIPTION

[0047] The present invention provides a dimming film capable of installing conductive leads on the same transparent conductive film, thereby achieving the effect of simplifying the production process and reducing the defective rate of the dimming film product.

[0048] the term

[0049] In the present invention, the following terms used have the meanings defined below.

[0050] Transparent conductive film:

[0051] A laminated composition of a transparent substrate and a transparent conductive layer.

[0052] Areas that are not electrically conductive to each other:

[0053] Refers to multiple areas separated by isolation zones, where current cannot flow between them.

[0054] Electrical connection:

[0055] It refers to a connection that is physically connected through a conductor and through which current can flow; if a switching device is provided in the circuit, it is a non-electrical connection when the switching device is in a disconnected state, and it is an electrical connection when the switching device is in a connected state.

[0056] In the present invention, the concepts of the first transparent substrate, the second transparent substrate, the first transparent conductive layer, and the second transparent conductive layer only represent the relative relationship between the two, and are not restrictive conditions. They do not necessarily have to be the first and second relationships, but can also be up, down, front, back, left, right, and other directional relationships.

[0057] In order to better illustrate the present invention, the following specific examples are provided.

[0058] Example 1 Preparation of dimming film

[0059] Preparation of light-controlling particles:

[0060] Add 30g of isoamyl acetate solution containing 21.2wt% nitrocellulose (model SS1 / 4sec), 6g I2, 70g isoamyl acetate, 4g anhydrous CaI2 and 4g titanium dioxide (model P25) to a 250mL three-necked round-bottomed glass flask and heat to 42°C. After I2 is dissolved, add 6g anhydrous methanol, 0.8g distilled water and 4g 2,5-pyrazine dicarboxylic acid dihydrate to the above three-necked round-bottomed glass flask, heat and stir at 42°C to react for 4 hours, and then cool naturally. The resulting reaction solution is centrifuged at 1350G for 0.5h to remove large particle products, and then the supernatant is centrifuged at 18000G for 5h, and the supernatant is discarded to obtain light-controlled particles.

[0061] Preparation of polymer matrix precursor:

[0062] Dissolve 2.7g trisilyl hydroxyethyl-POSS in 190mL heptane to prepare a POSS solution. Add 54g hydroxyl-terminated dimethyl diphenyl polysiloxane and 190mL of the above POSS solution to a 500mL three-necked round-bottom glass flask. One side of the three-necked round-bottom glass flask is connected to a water separator and a condenser, a mechanical stirrer is installed in the middle, and a thermometer is placed on the other side; the solution in the three-necked round-bottom glass flask is heated to reflux for 30min. When a small amount of water appears in the water separator, add a catalyst stannous octoate solution (a solution formed by dissolving 0.13g stannous octoate in 10mL heptane). Then add a mixture of 3g hydrolyzed acryloxypropyl trimethoxysilane and 1.8g hydrolyzed epoxypropyl trimethoxysilane dropwise for about 5 minutes. Then the condensation reaction is carried out for 5 hours, and then 30mL trimethylmethoxysilane is immediately added as a terminator for the reaction; the termination reaction lasts for 2h, and then it is quickly cooled to room temperature. Mix 50 mL of ethanol and the cooled reaction solution in a 1L beaker, and then wash the reaction bottle with 30 mL of heptane and pour it into the beaker. After mixing evenly, add 200 mL of methanol and stir for 15 minutes. Pour the resulting mixture into a 1L separatory funnel and let it stand for several hours to separate into layers. Take out the lower clear liquid and evaporate it at 70°C to finally obtain a polymer matrix precursor.

[0063] Preparation of light control layer matrix emulsion:

[0064] 0.1 g of photoinitiator 819, 3.0 g of light-controlling particles, 26.9 g of suspension medium, i.e., dioctyl terephthalate, and 70.0 g of polymer matrix precursor were mixed evenly to obtain a light-controlling layer matrix emulsion.

[0065] The suspended particle light-control layer matrix emulsion was coated on the ITO / PET transparent conductive film by a roll-to-roll automatic coating machine, and then another layer of ITO transparent conductive film was covered on the light-control layer matrix emulsion wet film to obtain a wet film containing the light-control layer. In a nitrogen atmosphere, it was cured in a UV curing box for 1 minute with a UV power of 700W / m 2 .

[0066] The present invention uses a nanosecond laser pulse with a wavelength of 355nm and 50kHz to perform internal etching on the dimming film. An isolation region with a width of 50μm is formed on the first transparent conductive layer. See the attached schematic diagram. Figure 1 , and obtain two mutually non-conductive A and B regions. Apply conductive silver paste and conductive adhesive to the local position near the edge of the two regions of the first transparent conductive layer after etching, and then adhere two conductive leads (conductive copper tapes) to the conductive silver paste and conductive adhesive respectively, and dry them. See attached Figure 2 The dimming film 1 is thus obtained. The conductive leads are electrically connected to a power source through a wire, and the light transmission state of the dimming film 1 can be controlled by adjusting the voltage applied by the power source between the two conductive leads.

[0067] Schematic diagram of the cross-sectional structure of the dimming film 1, see Figure 7 .

[0068] In general, if Figure 2 The dimming film of this solution contains two conductive leads electrically connected to mutually electrically non-conductive areas separated by the isolated area of ​​the first transparent conductive layer, and there is no specific requirement for the relative position of the conductive leads. Of course, more than two conductive leads can be electrically connected to mutually electrically non-conductive areas separated by the isolated area of ​​the same transparent conductive layer as needed.

[0069] Example 2 Preparation of dimming film

[0070] The same as Example 1, except that the isolation area is two oblique straight lines from the upper right to the lower left, generating three irregular electrically non-conductive areas A, B, and C. The width of the isolation area is 100 μm, as shown in the attached schematic diagram. Figure 3 .

[0071] The conductive leads are electrically connected to a power source through wires, and the light transmittance state of the dimming film 2 can be controlled by adjusting the voltage applied by the power source between the three conductive leads. In this embodiment, the power source is 110V, 60Hz alternating current.

[0072] If switch 1 is turned on and switch 2 is turned off, the dimming films corresponding to areas A and B are in a bright state, and the dimming film corresponding to area C is in a dark state;

[0073] If switch 1 is off and switch 2 is on, the dimming films corresponding to areas A and C are in a bright state, and the dimming film corresponding to area B is in a dark state;

[0074] If switch 1 is turned on and switch 2 is turned on, the dimming films corresponding to areas A, B, and C are in a bright state;

[0075] If switch 1 is turned off and switch 2 is turned off, the dimming films corresponding to areas A, B, and C are in a dark state.

[0076] Example 3 Preparation of dimming film

[0077] Same as Example 1, except that the isolation area is two intersecting straight lines in the upper left corner, generating two regular electrically non-conductive areas A and B. The width of the isolation area is 20 μm, see the attached schematic diagram Figure 4 .

[0078] Example 4 Preparation of dimming film

[0079] Same as Example 1, except that the isolation area is 3 straight lines from top to bottom, generating 4 regular electrically non-conductive areas A, B, C and D, and installing 4 conductive leads. The width of the isolation area is 30 μm, see the attached schematic diagram Figure 5 .

[0080] Example 5 Preparation of dimming film

[0081] Same as Example 1, except that a closed isolation area is made 3 mm away from the edge of the dimming film. See the attached schematic diagram. Figure 6 .

[0082] Generally, the number of conductive leads is the same as the number of electrically non-conductive regions separated by the isolation region. However, in some cases, some electrically non-conductive regions separated by the isolation region are not provided with conductive leads, simply because the region does not require dimming. Figure 6 . Figure 6 It means that the isolation area divides the first transparent conductive layer into three electrically non-conductive areas: A, B, and C. The C area is located at the edge of the conductive layer. Only the A and B areas are electrically connected to the conductive leads, and the C area is not connected to the conductive leads. That is to say, if it is necessary for the product, the conductive leads may not be set in some electrically non-conductive areas, just because the dimming function is not required in the area. The area without conductive leads can be changed according to actual needs.

[0083] Example 6 Preparation of dimming glass

[0084] Ordinary tempered glass is used as the first and second glass plates, the width of the first and second glass plates is 2.2m, EVA films are set as the first and second interlayer films, the dimming film prepared in Example 1 is used, the layers are stacked, and the interlayer treatment is performed in an autoclave, the interlayer temperature is 110°C, the interlayer pressure is 0.5MPa, and the interlayer time is 30min, so as to obtain dimming glass 1, and the cross-sectional view is shown in the schematic diagram. Figure 8 shown.

[0085] The above-mentioned examples all set the isolation region on the first transparent conductive layer. Obviously, setting the isolation region on the second transparent conductive layer is similar to setting the isolation region on the first transparent conductive layer.

[0086] The description of the above embodiments is only used to help understand the method of the present invention and its core idea. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A dimming film, characterized in that: The invention comprises a first transparent substrate (1), a first transparent conductive layer (2), a light control layer (3), a second transparent conductive layer (4), a second transparent substrate (5) and a conductive lead (6) which are sequentially stacked, wherein the first transparent conductive layer (2) or the second transparent conductive layer (4) is provided with at least one isolation region (7), the isolation region (7) divides the first transparent conductive layer (2) or the second transparent conductive layer (4) into at least two regions which are electrically non-conductive with each other, the conductive lead (6) is electrically connected to the first transparent conductive layer (2) provided with the isolation region (7) or the second transparent conductive layer (4) provided with the isolation region (7), and the conductive lead (6) is provided on the same transparent conductive layer.

2. The dimming film according to claim 1, characterized in that: There is no electrical conduction between any regions of the first transparent conductive layer (2) and the second transparent conductive layer (4).

3. The dimming film according to claim 1, characterized in that: There are at least two conductive leads (6), which are respectively electrically connected to mutually electrically non-conductive areas separated by the isolation area (7) on the same layer of the first transparent conductive layer (2) where the isolation area (7) is provided or the second transparent conductive layer (4) where the isolation area (7) is provided.

4. The dimming film according to claim 1, characterized in that: The conductive lead (6) is electrically connected to a corresponding electrode of a power source via a conductive wire.

5. The dimming film according to claim 1, characterized in that: The conductive lead (6) comprises at least one of a metal wire, a metal conductive mesh, and a flexible printed circuit board (FPC).

6. The dimming film according to claim 1, characterized in that: The width of the isolation region (7) is 1 μm to 1 mm.

7. The dimming film according to claim 1, characterized in that: The isolation area (7) is in the shape of a straight line or a curve, or a combination thereof.

8. The dimming film according to claim 1, characterized in that: The isolation region (7) is formed by etching the first transparent conductive layer (2) or the second transparent conductive layer (4).

9. The dimming film according to claim 8, characterized in that: The etching is one or more of ion beam etching (IBE), deep silicon etching (DRIE), reactive ion etching (RIE), focused ion beam etching (FIB), inductively coupled plasma etching (ICP), microwave plasma etching, laser external etching, laser internal etching or chemical etching.

10. The dimming film according to claim 8, characterized in that: The etching is laser external etching and / or laser internal etching.

11. The dimming film according to claim 1, characterized in that: The surface of the first transparent conductive layer (2) and / or the second transparent conductive layer (4) facing the light control layer (3) is covered with an adhesive layer; the adhesive layer material includes at least one of epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic resin or silicone resin.

12. The light-adjusting film according to claim 1, characterized in that: The light control layer (3) is selected from at least one of a suspended particle light control layer, a polymer dispersed liquid crystal light control layer or an electrochromic light control layer.

13. The dimming film according to claim 1, characterized in that: The first transparent substrate (1) and the second transparent substrate (5) are glass plates.

14. The dimming film according to claim 1, characterized in that: The first transparent substrate (1) and the second transparent substrate (5) are transparent plastic sheets.

15. The dimming film according to claim 1, characterized in that: The first transparent conductive layer (2) and the second transparent conductive layer (4) are each independently selected from at least one of an ITO conductive layer, a FZO conductive layer, an IZO conductive layer, a GZO conductive layer, an AZO conductive layer, a PEDOT conductive layer, a nano-Ag wire conductive layer, conductive graphene and a nano-Cu wire conductive layer.

16. 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 15 arranged between the first glass plate (8) and the second glass plate (9).

17. The switchable glass according to claim 16, 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.

18. Use of the dimming film according to any one of claims 1 to 15 or the dimming glass according to any one of claims 16 to 17 in one or more of automobile window glass, skylight glass and glass curtain wall.

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