A light adjusting device

Abstract

This application discloses a dimming device, belonging to the field of dimming devices. The dimming device includes a first substrate layer, a dimming functional layer, a second substrate layer, an adhesive layer, and a transparent substrate. The dimming functional layer is disposed on one side of the first substrate layer; the second substrate layer is disposed on the side of the dimming functional layer away from the first substrate layer; the adhesive layer is disposed on the side of the second substrate layer away from the dimming functional layer; the transparent substrate is bonded to the side of the adhesive layer away from the second substrate layer; the first substrate layer and the second substrate layer are made of different materials. With the dimming device provided by this application, when the dimming functional layer is damaged, maintenance personnel can separate the damaged first substrate layer, dimming functional layer, second substrate layer, and adhesive layer as a whole from the transparent substrate, and then bond a new first substrate layer, dimming functional layer, second substrate layer, and adhesive layer as a whole to the transparent substrate using the adhesive layer to complete the repair and replacement. This eliminates the need to replace the transparent substrate, effectively reducing repair and replacement costs and improving repair and replacement efficiency.

Description

Technical Field

[0001] This application relates to the field of dimming device technology, and more particularly to a dimming device. Background Technology

[0002] Electrochromism refers to the phenomenon that the optical properties (reflectivity, transmittance, absorptivity, etc.) of a material undergo stable and reversible changes under the action of an external electric field. In appearance, it manifests as reversible changes in color and transparency. The dimming glass made using electrochromic materials can respond to changes in voltage and thus play the role of adjusting transmittance. Therefore, it is used in windows, car windows, curtain walls, rearview mirrors, etc.

[0003] Most existing dimming glass uses a sandwich structure of glass layer-dimming film-glass layer. When the dimming film between the two glass layers is damaged, the entire dimming glass needs to be replaced, resulting in high maintenance and replacement costs and low efficiency. Utility Model Content

[0004] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a dimming device to solve the technical problem that when the dimming film disposed between the two glass layers is damaged, the entire dimming glass needs to be replaced, resulting in high maintenance and replacement costs and low efficiency.

[0005] To address the aforementioned technical problems, this application provides:

[0006] A dimming device, comprising:

[0007] First substrate layer;

[0008] A dimming function layer is disposed on one side of the first substrate layer;

[0009] The second substrate layer is disposed on the side of the dimming functional layer away from the first substrate layer;

[0010] An adhesive layer is disposed on the side of the second substrate layer away from the dimming functional layer;

[0011] A transparent substrate, wherein the transparent substrate is bonded to the adhesive layer on the side away from the second substrate layer;

[0012] The first substrate layer and the second substrate layer are made of different materials.

[0013] In addition, the dimming device according to this application may also have the following additional technical features:

[0014] In some embodiments of this application, the second substrate layer includes a first substrate layer and an infrared reflective layer, wherein the infrared reflective layer is disposed on the side of the first substrate layer away from or close to the dimming functional layer.

[0015] In some embodiments of this application, the first substrate layer includes a second substrate layer and a hardening reinforcement layer, wherein the hardening reinforcement layer is disposed on the side of the second substrate layer away from the dimming functional layer.

[0016] In some embodiments of this application, the sum of the thicknesses of the second substrate layer and the hardened reinforcing layer is 50-500 μm.

[0017] In some embodiments of this application, the adhesive layer is integrally molded from a water-based pressure-sensitive adhesive material.

[0018] In some embodiments of this application, the dimming device further includes a sealing layer disposed between the first substrate layer and the second substrate layer, and located circumferentially in the dimming functional layer.

[0019] In some embodiments of this application, a shielding layer is provided on the circumferential edge of the first substrate layer on the side away from the sealing layer, and the orthographic projection of the shielding layer on the first substrate layer covers the orthographic projection of the sealing layer on the first substrate layer.

[0020] In some embodiments of this application, a controller and a power supply device are provided on the shielding layer, and the controller and the power supply device are respectively electrically connected to the dimming function layer.

[0021] In some embodiments of this application, the dimming device further includes a lead-out electrode, one end of which is electrically connected to the dimming functional layer, and the other end of which extends away from the dimming functional layer through the sealing layer to the outside of the sealing layer.

[0022] In some embodiments of this application, the transparent substrate is made of glass.

[0023] Compared to existing technologies, the beneficial effects of this application are:

[0024] This application proposes a dimming device comprising a first substrate layer, a dimming functional layer, a second substrate layer, an adhesive layer, and a transparent substrate, stacked sequentially. By using different materials for the first and second substrate layers, the first substrate layer can be made of a material with higher hardness than a substrate layer with ordinary hardness, thus ensuring the stability and reliability of the dimming device. When the dimming functional layer is damaged, maintenance personnel can separate the damaged first substrate layer, dimming functional layer, second substrate layer, and adhesive layer from the transparent substrate as a whole, and then attach a new first substrate layer, dimming functional layer, second substrate layer, and adhesive layer to the transparent substrate using the adhesive layer to complete the repair and replacement. This eliminates the need to replace the transparent substrate, effectively reducing repair and replacement costs and improving repair and replacement efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 The following diagram illustrates the structure of the dimming device in some embodiments of this application. Figure 1 ;

[0027] Figure 2 The following diagram illustrates the structure of the dimming device in some embodiments of this application. Figure 2 ;

[0028] Figure 3 The following diagram illustrates the structure of the dimming device in some embodiments of this application. Figure 3 .

[0029] Explanation of key component symbols:

[0030] 100 - Dimming device;

[0031] 110 - First substrate layer; 111 - Second substrate layer; 112 - Hardened reinforcement layer;

[0032] 120-Dimming Function Layer;

[0033] 130 - Second substrate layer; 131 - First substrate layer; 132 - Infrared reflective layer;

[0034] 140 - Adhesive layer;

[0035] 150 - Transparent substrate;

[0036] 160 - Sealing layer;

[0037] 170 - Shielding layer;

[0038] 180 - Lead-out electrode. Detailed Implementation

[0039] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0040] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] like Figure 1 As shown, an embodiment of this application provides a dimming device 100, which includes a first substrate layer 110, a dimming functional layer 120, a second substrate layer 130, an adhesive layer 140, and a transparent substrate 150.

[0045] A dimming functional layer 120 is disposed on one side of the first substrate layer 110, a second substrate layer 130 is disposed on the side of the dimming functional layer 120 away from the first substrate layer 110, an adhesive layer 140 is disposed on the side of the second substrate layer 130 away from the dimming functional layer 120, and a transparent substrate 150 is bonded to the side of the adhesive layer 140 away from the second substrate layer 130. The first substrate layer 110 and the second substrate layer 130 are made of different materials.

[0046] Preferably, the hardness of the first substrate layer 110 is greater than the hardness of the second substrate layer 120. The dimming device 100 provided in the embodiments of this application includes a first substrate layer 110, a dimming functional layer 120, a second substrate layer 130, an adhesive layer 140, and a transparent substrate 150 stacked sequentially. By using different materials for the first substrate layer 110 and the second substrate layer 130, the first substrate layer 110, which is closer to the environment, can use a material with higher hardness to replace a substrate layer with ordinary hardness, thereby ensuring the stability and reliability of the dimming device 100.

[0047] When the dimming layer 120 is damaged, maintenance personnel can separate the damaged first substrate layer 110, dimming layer 120, second substrate layer 130, and adhesive layer 140 from the transparent substrate 150. Then, a new first substrate layer 110, dimming layer 120, second substrate layer 130, and adhesive layer 140 can be bonded to the transparent substrate 150 using the adhesive layer 140. This completes the repair and replacement process without needing to replace the transparent substrate 150, effectively reducing repair and replacement costs and improving efficiency. For example, the transparent substrate 150 can be made of glass. This solution avoids the technical problem in the prior art where the dimming film located between two glass layers needs to be replaced entirely when damaged, leading to high repair and replacement costs and low efficiency.

[0048] It should be noted that the dimming functional layer 120 may include a first adhesive layer, a dimming layer, and a second adhesive layer stacked sequentially. Both the first and second adhesive layers can be made of polyvinyl butyral (PVB) resin. The dimming layer may include a first substrate layer, a first conductive layer, an electrochromic dielectric layer, a second conductive layer, and a second substrate layer stacked sequentially. The electrochromic dielectric layer is made of electrochromic material and can undergo stable and reversible color changes under the action of an applied electric field. The electrochromic layer is a sheet composed of one or more layers of gel-state or solid materials, such as polymer-dispersed liquid crystal (PDLC) layers, suspended particle devices (SPD) layers, and electrochromic (EC) types. For electrochromic (EC) type electrochromic layers, it may include a color-changing material layer, an electrolyte layer, and an ion storage layer stacked sequentially. The materials for the color-changing material layer, the electrolyte layer, and the ion storage layer can be those available in the prior art, and this application does not impose any special limitations on them.

[0049] Both the first and second base layers are transparent substrates. The "transparent substrate" is an optically transparent material, which can be a flexible substrate material, such as polyethylene terephthalate (PET), polycarbonate (PC), polyimide (PI), cyclic olefin copolymers, or cellulose triacetate.

[0050] In addition, both the first conductive layer and the second conductive layer are transparent conductive layers. The material of the "transparent conductive layer" can be any transparent conductive material well known to those skilled in the art, such as indium-tin oxide (ITO), aluminum zinc oxide (AZO), fluorine-doped tin oxide (FTO), silver nanowires, graphene, carbon nanotubes, metal meshes, or silver nanoparticles.

[0051] like Figure 2 As shown, in one embodiment of this application, the second substrate layer 130 includes a first substrate layer 131 and an infrared reflective layer 132, wherein the infrared reflective layer 132 is disposed on the side of the first substrate layer 131 away from or close to the dimming functional layer 120.

[0052] In this embodiment, by providing an infrared reflective layer 132 on the side of the first substrate layer 131 that is away from or close to the dimming functional layer 120, the infrared rays that enter the transparent substrate 150 from the outside are reflected back to the outside by the infrared reflective layer 132, thereby effectively reducing radiation and reducing heat entering the room, which in turn helps to reduce the energy consumption of the dimming functional layer 120.

[0053] For example, the material of the first substrate layer 131 is polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), etc. The material of the infrared reflective layer 132 can be silver, aluminum, gold containing the above-mentioned metal elements or compounds, titanium dioxide, aluminum oxide, lithium niobate, indium tin oxide, etc.

[0054] like Figure 2 As shown, in one embodiment of this application, the first substrate layer 110 includes a second substrate layer 111 and a hardening reinforcement layer 112, wherein the hardening reinforcement layer 112 is disposed on the side of the second substrate layer 111 away from the dimming functional layer 120.

[0055] In this embodiment, a hardening reinforcement layer 112 is provided on the side of the second substrate layer 111 away from the dimming functional layer 120 to increase the surface hardness of the dimming device 100 on the side away from the dimming functional layer 120. This makes the surface of the dimming device 100 on the side away from the dimming functional layer 120 scratch-resistant and fingerprint-resistant, and also facilitates cleaning of stains on the surface of the dimming device 100 on the side away from the dimming functional layer 120 by the user. In addition, by providing the hardening reinforcement layer 112 to increase the surface hardness of the dimming device 100 on the side away from the dimming functional layer 120, the deformation and damage of the dimming device 100 during use can also be reduced, effectively improving the stability and reliability of the dimming device 100, thereby helping to extend the service life of the dimming device 100.

[0056] For example, the material of the second substrate layer 111 is polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), etc. The hardening reinforcement layer 112 can be composed of nanoscale inorganic materials (such as silica, alumina) and organic resins (acrylic, polyurethane), forming a dense cross-linked network through UV curing or thermosetting processes, which significantly improves the surface hardness.

[0057] Preferably, the second substrate 111 is made of polyethylene terephthalate and is integrally formed with the hardening reinforcement layer 112.

[0058] In the above embodiments of this application, the sum of the thicknesses of the second substrate layer 111 and the hardened reinforcing layer 112 is 50-500 μm.

[0059] In this embodiment, by controlling the sum of the thicknesses of the second substrate layer 111 and the hardening reinforcement layer 112 to be between 50 μm and 500 μm, it is possible to avoid the sum of the thicknesses of the second substrate layer 111 and the hardening reinforcement layer 112 being too thin, which would affect the structural strength of the first substrate layer 110 and thus the stability and reliability of the dimming device 100. On the other hand, it is also possible to avoid the sum of the thicknesses of the second substrate layer 111 and the hardening reinforcement layer 112 being too thick, which would increase material costs.

[0060] For example, the sum of the thicknesses of the second substrate layer 111 and the hardened reinforcing layer 112 can be 50μm, 100μm, 150μm, 200μm, 250μm, 300μm, 350μm, 400μm, 450μm, 500μm, etc. The specific thickness can be designed according to the actual needs of the product, and will not be listed here.

[0061] In one embodiment of this application, the adhesive layer 140 is integrally molded using a water-based pressure-sensitive adhesive. Therefore, when it is necessary to bond the new first substrate layer 110, dimming functional layer 120, second substrate layer 130, and adhesive layer 140 together to the transparent substrate 150 using the adhesive layer 140, the surface of the transparent substrate 150 to be bonded is sprayed with water, and then the adhesive layer 140 is brought into contact with the sprayed surface of the transparent substrate 150. This achieves a stable bond of the new first substrate layer 110, dimming functional layer 120, second substrate layer 130, and adhesive layer 140 to the transparent substrate 150, improving maintenance and replacement efficiency.

[0062] For example, the material of water-based pressure-sensitive adhesive can be methyl methacrylate-butyl acrylate copolymer (MMA-BACopolymer), ethylene-acrylic acid copolymer (EAA), ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEA), styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), etc.

[0063] like Figure 3 As shown, in one embodiment of this application, the dimming device 100 further includes a sealing layer 160, which is disposed between the first substrate layer 110 and the second substrate layer 130 and is located in the circumferential direction of the dimming functional layer 120.

[0064] In this embodiment, a sealing layer 160 is provided between the first substrate layer 110 and the second substrate layer 130 in the circumferential direction of the dimming functional layer 120. This allows the sealing layer 160, the first substrate layer 110, and the second substrate layer 130 to completely cover the dimming functional layer 120, thereby preventing external moisture from contacting the dimming functional layer 120 and causing it to fail, which would affect the service life of the dimming functional layer 120.

[0065] For example, the sealing layer 160 can be made of butyl rubber, silicone sealant, silicone rubber, polysulfide rubber or other materials with sealing functions.

[0066] like Figure 3 As shown in the above embodiments of this application, a shielding layer 170 is provided on the circumferential edge of the first substrate layer 110 away from the sealing layer 160, and the orthographic projection of the shielding layer 170 on the first substrate layer 110 covers the orthographic projection of the sealing layer 160 on the first substrate layer 110.

[0067] In this embodiment, by providing a shielding layer 170 on the circumferential edge of the first substrate layer 110 away from the sealing layer 160, and the orthographic projection of the shielding layer 170 on the first substrate layer 110 covers the orthographic projection of the sealing layer 160 on the first substrate layer 110, the sealing layer 160 is completely shielded in the stacking direction, thereby preventing the user from seeing the sealing layer 160 from the outside, and effectively improving the aesthetics of the dimming device 100.

[0068] For example, the masking layer 170 can be ink.

[0069] In the above embodiments of this application, a controller and a power supply device are provided on the shielding layer 170, and the controller and the power supply device are electrically connected to the dimming function layer 120 respectively.

[0070] In this embodiment, the controller and power supply device disposed on the shielding layer 170 are electrically connected to the dimming function layer 120 to realize the power supply and dimming control functions of the dimming function layer 120.

[0071] For example, the controller can be a programmable logic controller, and the power supply can be composed of multiple secondary batteries connected in series or in parallel.

[0072] like Figure 3 As shown in the above embodiments of this application, the dimming device 100 further includes a lead-out electrode 180, one end of which is electrically connected to the dimming functional layer 120, and the other end of which extends away from the dimming functional layer 120 through the sealing layer 160 to the outside of the sealing layer 160.

[0073] In this embodiment, by electrically connecting one end of the lead-out electrode 180 to the dimming functional layer 120, and extending the other end of the lead-out electrode 180 away from the dimming functional layer 120 through the sealing layer 160 to the outside of the sealing layer 160, the dimming functional layer 120 is electrically connected to the controller and the power supply device through the lead-out electrode 180, thereby realizing the power supply and dimming control functions for the dimming film.

[0074] For example, the lead electrode 180 can be a flexible circuit board.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A light modulating device, comprising: include: First substrate layer; A dimming function layer is disposed on one side of the first substrate layer; The second substrate layer is disposed on the side of the dimming functional layer away from the first substrate layer; An adhesive layer is disposed on the side of the second substrate layer away from the dimming functional layer; A transparent substrate, wherein the transparent substrate is bonded to the adhesive layer on the side away from the second substrate layer; The first substrate layer and the second substrate layer are made of different materials.

2. The light modulating device of claim 1, wherein, The second substrate layer includes a first substrate layer and an infrared reflective layer, wherein the infrared reflective layer is disposed on the side of the first substrate layer that is away from or close to the dimming functional layer.

3. The light modulating device of claim 1, wherein The first substrate layer includes a second substrate layer and a hardening and reinforcing layer, wherein the hardening and reinforcing layer is disposed on the side of the second substrate layer away from the dimming functional layer.

4. The light modulating device of claim 3, wherein, The combined thickness of the second substrate layer and the hardened reinforcing layer is 50-500 μm.

5. The light modulating device of claim 1, wherein The adhesive layer is integrally molded using water-based pressure-sensitive adhesive.

6. The light modulating device of claim 1, wherein The dimming device further includes a sealing layer disposed between the first substrate layer and the second substrate layer, and located circumferentially in the dimming functional layer.

7. The light modulating device of claim 6, wherein, A shielding layer is provided on the circumferential edge of the first substrate layer away from the sealing layer, and the orthographic projection of the shielding layer on the first substrate layer covers the orthographic projection of the sealing layer on the first substrate layer.

8. The light modulating device of claim 7, wherein, The shielding layer is equipped with a controller and a power supply device, and the controller and the power supply device are electrically connected to the dimming function layer, respectively.

9. The light modulating device of claim 6, wherein, The dimming device further includes a lead-out electrode, one end of which is electrically connected to the dimming functional layer, and the other end of which extends through the sealing layer to the outside of the sealing layer.

10. The light modulating device of claim 1, wherein The transparent substrate is made of glass.

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