Dimming glass and terminal product
By adding anti-wrinkle layers and sealant layers to both sides of the flexible electrochromic film, the wrinkling problem of the flexible electrochromic film when laminating large-curvature curved glass is solved, improving the appearance and electrochromic performance of the dimming glass.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN GUANGYI TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-12
AI Technical Summary
Flexible electrochromic films are prone to wrinkling when laminated with large-curvature curved glass, affecting their appearance and electrochromic performance.
Anti-wrinkle layers are added to both sides of the flexible electrochromic film, and a sealant layer can be used. The anti-wrinkle layer reduces wrinkle formation by absorbing deformation, and the sealant layer enhances the bonding strength and interface stability.
It improves the aesthetics and reliability of the dimming glass, ensures the stability of the electrochromic performance and the consistency of light, and prevents wrinkles caused by stress concentration.
Smart Images
Figure CN224232084U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electrochromic technology, and particularly relates to a dimming glass and its end product. Background Technology
[0002] With the rapid development of new energy vehicles, electrochromic (EC) devices are increasingly being used in automotive sunroofs to improve in-vehicle comfort and energy efficiency, enabling them to have dimming capabilities. For aesthetic reasons, sunroofs in new energy vehicles are typically designed with high arches and large curvatures. Compared to traditional glass structures, flexible electrochromic films are thin, easy to cut, and bend, allowing them to be bonded to curved glass surfaces, making them more suitable for bonding with large-curvature glass to form sunroofs. However, in practical applications, flexible EC films often use flexible films such as polyethylene terephthalate (PET) as the substrate. During the bonding process with glass (i.e., sandwiched between two pieces of glass), the PET film must withstand high temperatures and pressures. Especially when sandwiched between two large-area curved glass pieces with high arches and curvatures, the PET film is prone to wrinkling in areas of stress concentration. These wrinkles not only affect the appearance quality of the smart glass, but may also cause a decrease or failure in the electrochromic performance of the smart glass.
[0003] Existing technologies primarily address this issue by controlling hot-pressing temperature, pressure curves, or adjusting the thickness of the PET substrate, but with limited effectiveness. This is especially true in scenarios where a flexible electrochromic film needs to be sandwiched between two large-curvature curved glass sheets, where wrinkles are still difficult to avoid. Therefore, a new structural design is urgently needed to alleviate the stress on the flexible electrochromic film during the lamination process, thereby reducing or preventing wrinkles. Utility Model Content
[0004] In view of this, embodiments of this application provide a dimming glass and a terminal product to solve the technical problem that existing flexible electrochromic films are prone to wrinkling when laminated with curved glass.
[0005] In a first aspect, embodiments of this application provide a dimming glass, comprising a first curved glass, a first anti-wrinkle layer, a flexible electrochromic film, a second anti-wrinkle layer, and a second curved glass stacked sequentially, wherein the flexible electrochromic film comprises a first flexible transparent film, an ion storage layer, an electrochromic layer, an electrolyte layer, and a second flexible transparent film stacked sequentially.
[0006] The first anti-wrinkle layer and the second anti-wrinkle layer are in direct contact with the first curved glass and the second curved glass, respectively; or a first sealant layer is provided between the first anti-wrinkle layer and the first curved glass, and / or a second sealant layer is provided between the second anti-wrinkle layer and the second curved glass.
[0007] In the prior art, when flexible electrochromic films are laminated with curved glass with large curvature to form dimming glass, the films are prone to wrinkles in stress concentration areas, which not only affects the appearance of the dimming glass, but also leads to a decrease or even failure of the electrochromic performance of the dimming glass.
[0008] Based on this, this application provides an anti-wrinkle layer between curved glass and a flexible electrochromic film. Specifically, a first anti-wrinkle layer and a second anti-wrinkle layer are added to both sides of the flexible electrochromic film. The principle of the anti-wrinkle layer is to absorb the deformation generated by the flexible electrochromic film during the lamination process with the curved glass, thereby reducing or avoiding the generation of wrinkles in the film, thereby improving the aesthetics of the dimming glass and ensuring the reliability and light consistency of the dimming glass.
[0009] Furthermore, when a sealant layer is added between the anti-wrinkle layer and the curved glass, the sealant not only enhances the bonding strength, but also completely fills the irregular areas of the interface before curing due to its fluidity, further improving stress uniformity and working in conjunction with the anti-wrinkle layer to prevent wrinkles from forming on the flexible electrochromic film.
[0010] In some embodiments, the first anti-wrinkle layer is an optically transparent pressure-sensitive adhesive layer. In some embodiments, the second anti-wrinkle layer is an optically transparent pressure-sensitive adhesive layer. The optically transparent pressure-sensitive adhesive layer has high transparency, low haze, and high temperature resistance, and can have good adhesion to flexible transparent films and curved glass. The pressure-sensitive adhesive has soft adhesion and a certain degree of fluidity at room temperature, which can automatically fill the micro-unevenness between the curved glass and the flexible electrochromic film (such as the small bumps and depressions on the glass surface or the slight undulations of the film), avoiding local stress concentration caused by air residue, thereby preventing wrinkle formation.
[0011] In some embodiments, the thickness of the first anti-wrinkle layer is 250 μm to 500 μm. In some embodiments, the thickness of the second anti-wrinkle layer is 250 μm to 500 μm. The anti-wrinkle layer typically possesses moderate flexibility and thickness (250 μm to 500 μm), which allows it to conform to the curved shape of the glass while providing sufficient supporting stiffness to suppress spontaneous buckling of the flexible diaphragm. Within this thickness range, the elastic modulus of the anti-wrinkle layer is between that of curved glass and the flexible diaphragm, which can fill the microscopic unevenness caused by curvature differences, making the contact between the layers closer and reducing wrinkles caused by local stress.
[0012] In some embodiments, the first sealant layer is a PVB layer. In some embodiments, the second sealant layer is a PVB layer. The PVB layer is polyvinyl butyral. PVB has excellent tensile strength and elongation at break, which can effectively absorb the stress generated by bending or external impact on curved glass, prevent stress concentration from being transmitted to the anti-wrinkle layer and the electrochromic film, and inhibit wrinkle formation.
[0013] In some embodiments, the first flexible transparent film includes a first substrate layer and a first conductive layer. The first conductive layer is disposed on the side of the ion storage layer or electrolyte layer away from the electrochromic layer, and the first substrate layer is disposed on the side of the first conductive layer away from the electrochromic layer. In some embodiments, the second flexible transparent film includes a second substrate layer and a second conductive layer. The second conductive layer is disposed on the side of the electrolyte layer or ion storage layer away from the electrochromic layer, and the second substrate layer is disposed on the side of the second conductive layer away from the electrochromic layer. Using a flexible transparent film as the conductive substrate layer allows the flexible transparent film (such as PET / PEN / CPI film) to bend with curved glass without breaking, avoiding the brittle fracture problem of traditional rigid conductive glass when bent. The flexible substrate and the anti-wrinkle layer deform synergistically, preventing microcracks or delamination wrinkles from forming on the electrochromic film due to localized stress concentration.
[0014] In some embodiments, a plurality of first grooves are formed on one edge of the flexible electrochromic film, exposing a portion of the second conductive layer to form a plurality of first electrodes; a plurality of second grooves are formed on the other edge of the electrochromic film, exposing a portion of the first conductive layer to form a plurality of second electrodes; the first grooves and second grooves are staggered. By forming staggered first grooves (exposing the second conductive layer) and second grooves (exposing the first conductive layer) on the edge of the flexible electrochromic film, an alternating electrode structure is created. This design significantly improves the performance and reliability of the smart glass by optimizing the electric field distribution, enhancing interface contact reliability, and improving process tolerance.
[0015] In some embodiments, the edge of the flexible electrochromic film is formed with a plurality of first electrodes and a plurality of second electrodes, wherein the plurality of first electrodes are of the same polarity and the plurality of second electrodes are of the same polarity.
[0016] The flexible electrochromic film is further provided with a first lead-out assembly and a second lead-out assembly. The first lead-out assembly includes a first busbar and a first lead-out electrode disposed on the first busbar. The first busbar is connected to multiple first electrodes. The second lead-out assembly includes a second busbar and a second lead-out electrode disposed on the second busbar. The second busbar is connected to multiple second electrodes. In this way, multiple sets of electrodes of the same polarity (first electrode and second electrode) are arranged at the edge of the flexible electrochromic film, and through the centralized power supply design of busbar + lead-out electrodes, the effects of efficient current distribution, reliable electrical connection and simplified external circuit are achieved.
[0017] In some embodiments, the first anti-wrinkle layer is selected from one of an acrylic adhesive layer, a polyurethane adhesive layer, a silicone adhesive layer, and an epoxy resin adhesive layer. In some embodiments, the second anti-wrinkle layer is selected from one of an acrylic adhesive layer, a polyurethane adhesive layer, a silicone adhesive layer, and an epoxy resin adhesive layer. The acrylic / polyurethane adhesive is a medium-modulus adhesive layer, which absorbs the shear stress between the curved glass and the flexible membrane through elastic deformation, preventing stress transmission to the electrochromic layer and causing wrinkles. The silicone adhesive has an ultra-low modulus (similar to a gel) that can fill microscopic unevenness on curved surfaces, eliminating membrane buckling caused by local cavities. The epoxy resin has a high modulus, making it suitable for low curvature scenarios, and suppresses overall membrane deformation through rigid support.
[0018] Secondly, embodiments of this application provide a terminal product including the dimming glass described in the first aspect, wherein the terminal product is selected from any one of rearview mirrors, curtain walls, automotive sunroofs, automotive side windows, automotive windshields, electronic product housings, eyeglasses, vehicles, and display panels. The terminal product provided in this application includes the dimming glass described in the first aspect, and therefore possesses all the beneficial effects described in the first aspect. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of the dimming glass provided in the embodiments of this application. Figure 1 ;
[0021] Figure 2 This is a schematic diagram of the structure of the dimming glass provided in the embodiments of this application. Figure 2 ;
[0022] Figure 3This is a schematic diagram of the structure of the dimming glass provided in the embodiments of this application. Figure 3 ;
[0023] Figure 4 This is a schematic diagram of the structure of the flexible electrochromic film in the dimming glass provided in the embodiments of this application;
[0024] Figure 5 This is a schematic diagram of the electrode arrangement structure of the flexible electrochromic film in the dimming glass provided in the embodiments of this application.
[0025] The attached icon numbers are as follows:
[0026] 10. First curved glass; 100. First sealant layer;
[0027] 20. First anti-wrinkle layer;
[0028] 30. Flexible electrochromic film; 31. First flexible transparent film; 311. First substrate layer; 312. First conductive layer; 32. Ion storage layer; 33. Electrochromic layer; 34. Electrolyte layer; 35. Second flexible transparent film; 351. Second conductive layer; 352. Second substrate layer; 300. First groove; 301. Second groove; 302. First electrode; 303. Second electrode; 304. First busbar; 305. First lead-out electrode; 306. Second busbar; 307. Second lead-out electrode;
[0029] 40. Second anti-wrinkle layer;
[0030] 50. Second curved glass; 500. Second sealant layer. Detailed Implementation
[0031] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that the embodiments of this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the embodiments of this application with unnecessary detail.
[0032] It should also be understood that the term "and / or" as used in the specification of embodiments of this application and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0034] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this application.
[0035] Furthermore, in the description of the embodiments and the appended claims of this application, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.
[0036] In the description of embodiments in this application, references to "some embodiments" or "some embodiments" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in some embodiments," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiments, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" refers to two or more.
[0037] The first aspect of this application provides a dimming glass, such as... Figures 1 to 4 As shown, the dimming glass includes a first curved glass 10, a first anti-wrinkle layer 20, a flexible electrochromic film 30, a second anti-wrinkle layer 40, and a second curved glass 50 stacked in sequence.
[0038] The flexible electrochromic film 30 includes a first flexible transparent film 31, an ion storage layer 32, an electrochromic layer 33, an electrolyte layer 34, and a second flexible transparent film 35, which are stacked sequentially.
[0039] The first anti-wrinkle layer 20 and the second anti-wrinkle layer 40 are in direct contact with the first curved glass 10 and the second curved glass 50, respectively, or a sealant layer is provided between the anti-wrinkle layer and the curved glass, such as... Figures 1 to 3As shown, specifically, the positional relationship between the two anti-wrinkle layers and the two curved glass surfaces can include three cases: first, only the first anti-wrinkle layer 20 and the first curved glass surface 10 are provided with the first sealant layer 100; second, only the second anti-wrinkle layer 40 and the second curved glass surface 50 are provided with the second sealant layer 500; and third, the first anti-wrinkle layer 20 and the first curved glass surface 10 are provided with the first sealant layer 100, and the second anti-wrinkle layer 40 and the second curved glass surface 50 are provided with the second sealant layer 500.
[0040] In the prior art, when a flexible electrochromic film 30 is laminated with curved glass, especially glass with a large curvature, the film is prone to wrinkles in areas of stress concentration. This not only affects the appearance of the smart glass but also leads to a decrease or even failure of its electrochromic performance. Therefore, this application provides an anti-wrinkle layer between the curved glass and the flexible electrochromic film 30. Specifically, a first anti-wrinkle layer 20 and a second anti-wrinkle layer 40 are added to both sides of the flexible electrochromic film 30. The principle of the anti-wrinkle layer is to absorb the deformation of the flexible electrochromic film 30 during lamination with the curved glass, thereby reducing or avoiding wrinkles, thus improving the aesthetics of the smart glass and ensuring its reliability and light consistency.
[0041] The specific principle is as follows: Curved glass, when bent, generates uneven stress on its internal laminated structure. The anti-wrinkle layer, as a flexible interlayer, can absorb some of this stress through its own deformation, preventing stress concentration from being transferred to the fragile flexible electrochromic film 30. The elastic modulus of the anti-wrinkle layer is between that of the curved glass and the flexible film, filling in the microscopic unevenness caused by differences in curvature, making the contact between layers tighter, and reducing wrinkles caused by localized stress. The adhesion between the anti-wrinkle layer and adjacent layers (such as curved glass or sealant layers) is optimized, preventing lateral slippage of the flexible film under stress without restricting necessary elastic deformation due to excessive adhesive force.
[0042] In applications, when the anti-wrinkle layer is in direct contact with curved glass, it acts as a physical barrier, reducing direct friction between the flexible diaphragm and minute defects on the glass surface. If bonded via a sealant layer, it further solidifies interface stability. During lamination, the anti-wrinkle layer fills the air gaps between the flexible diaphragm and the curved glass (especially in curved areas), preventing wrinkles caused by uneven pressure due to residual air. In the lamination process, the anti-wrinkle layer helps distribute external pressure evenly across the entire surface of the electrochromic diaphragm, preventing deformation caused by excessive local pressure.
[0043] In some embodiments, the first anti-wrinkle layer 20 is an optically transparent pressure-sensitive adhesive layer. In some embodiments, the second anti-wrinkle layer 40 is an optically transparent pressure-sensitive adhesive layer. The optically transparent pressure-sensitive adhesive layer has high transparency, low haze, and high temperature resistance, and can have good adhesion to flexible transparent films and curved glass. The pressure-sensitive adhesive has soft adhesion and a certain degree of fluidity at room temperature, and can automatically fill the micro-unevenness (such as the small bumps and depressions on the glass surface or the slight undulations of the film) between the curved glass and the flexible electrochromic film 30, avoiding local stress concentration caused by air residue, thereby preventing wrinkle formation.
[0044] In applications, compared to traditional thermosetting adhesives, pressure-sensitive adhesives (PSAs) achieve good adhesion without heating or high pressure, simplifying the production process and reducing the risk of damage to flexible films during processing. Optically transparent PSAs typically have a low elastic modulus, enabling them to absorb mechanical stress between curved glass and flexible films through their own deformation, preventing stress from being directly transferred to the fragile electrochromic layer 33, and reducing wrinkles or delamination. PSAs allow for repositioning or peeling within a certain timeframe (such as adjustments during assembly), improving yield; and after curing, they maintain sufficient adhesive strength, ensuring no delamination during long-term use. Optical-grade PSAs have high light transmittance and extremely low haze, without affecting the overall light transmittance and visual clarity of the switching glass.
[0045] In applications, when the pressure-sensitive adhesive layer and the sealant layer are used together, they form a dual protection. The pressure-sensitive adhesive layer is responsible for buffering interfacial stress, while the sealant layer provides edge airtightness. Together, they prevent moisture or oxygen from penetrating the electrochromic film, thus extending the device's lifespan.
[0046] In some embodiments, the thickness of the first anti-wrinkle layer 20 is 250 μm to 500 μm. In application, the thickness of the first anti-wrinkle layer 20 can be any value within the range of 260 μm to 500 μm, such as 250 μm, 260 μm, 280 μm, 290 μm, 300 μm, 320 μm, 340 μm, 350 μm, 380 μm, 400 μm, 420 μm, 440 μm, 450 μm, 480 μm, or 500 μm. In some embodiments, the thickness of the second anti-wrinkle layer 40 is 250 μm to 500 μm. In applications, the thickness of the first anti-wrinkle layer 20 can be any value within the range of 260μm to 500μm, such as 250μm, 260μm, 280μm, 290μm, 300μm, 320μm, 340μm, 350μm, 380μm, 400μm, 420μm, 440μm, 450μm, 480μm, or 500μm. The anti-wrinkle layer typically possesses moderate flexibility and thickness (250μm to 500μm), allowing it to conform to curved surfaces while providing sufficient support stiffness to suppress spontaneous buckling of the flexible diaphragm. Within this thickness range, the elastic modulus of the anti-wrinkle layer lies between that of curved glass and the flexible diaphragm, filling in microscopic unevenness caused by differences in curvature, resulting in tighter contact between layers and reducing wrinkles caused by localized stress.
[0047] In some embodiments, the first sealant layer 100 is a PVB layer. In some embodiments, the second sealant layer 500 is a PVB layer. The PVB layer is polyvinyl butyral. PVB has excellent tensile strength and elongation at break, which can effectively absorb the stress generated by bending or external impact on curved glass, prevent stress concentration from being transmitted to the anti-wrinkle layer and the electrochromic film, and inhibit wrinkle formation.
[0048] In applications, PVB layers exhibit a higher elastic modulus and stronger cushioning capacity compared to ordinary sealants. The PVB layer, positioned between the anti-wrinkle layer and the curved glass, forms a gradient modulus structure of "rigid glass - flexible PVB - soft pressure-sensitive adhesive." This design progressively reduces stress, preventing wrinkles in the flexible electrochromic film 30 due to excessive local deformation. During hot pressing, PVB softens and flows, perfectly filling the millimeter-level gaps between the curved glass and the anti-wrinkle layer, eliminating the risk of wrinkling due to poor adhesion. It should be noted that pressure-sensitive adhesives can only fill micrometer-level gaps, while PVB effectively compensates for its limitations on macroscopic dimensions. By locking the anti-wrinkle layer in place, the cured PVB forms a high-bonding-strength bond, tightly fixing the anti-wrinkle layer and electrochromic film in the predetermined position, preventing slippage and wrinkling during use due to vibration or temperature cycling.
[0049] In some embodiments, the first anti-wrinkle layer 20 is selected from one of an acrylic adhesive layer, a polyurethane adhesive layer, an organosilicon layer, and an epoxy resin adhesive layer. In some embodiments, the second anti-wrinkle layer 40 is selected from one of an acrylic adhesive layer, a polyurethane adhesive layer, an organosilicon layer, and an epoxy resin adhesive layer. In a preferred embodiment, the first anti-wrinkle layer 20 and the second anti-wrinkle layer 40 are acrylic adhesive layers. The acrylic / polyurethane adhesive is a medium-modulus adhesive layer, which absorbs the shear stress between the curved glass and the flexible membrane through elastic deformation, preventing stress transmission to the electrochromic layer 33 and causing wrinkles. Organosilicon has an ultra-low modulus (similar to a gel), which can fill microscopic unevenness on curved surfaces and eliminate membrane buckling caused by local cavities. Epoxy resin has a high modulus, making it suitable for low curvature scenarios, and suppresses overall membrane deformation through rigid support.
[0050] In some embodiments, such as Figure 4 As shown, the first flexible transparent film 31 includes a first substrate layer 311 and a first conductive layer 312. The first conductive layer 312 is disposed on the side of the ion storage layer 32 or the electrolyte layer 34 away from the electrochromic layer 33, and the first substrate layer 311 is disposed on the side of the first conductive layer 312 away from the electrochromic layer 33. In some embodiments, the second flexible transparent film 35 includes a second substrate layer 352 and a second conductive layer 351. The second conductive layer 351 is disposed on the side of the electrolyte layer 34 or the ion storage layer 32 away from the electrochromic layer 33, and the second substrate layer 352 is disposed on the side of the second conductive layer 351 away from the electrochromic layer 33. By using a flexible transparent film as the conductive substrate layer, the flexible transparent film (such as polyethylene terephthalate / polyethylene naphthalate / polyimide film) can bend with curved glass without breaking, avoiding the brittle fracture problem of traditional rigid conductive glass when bent. The flexible substrate and the anti-wrinkle layer deform together to prevent microcracks or delamination wrinkles from forming on the electrochromic film due to local stress concentration.
[0051] In some embodiments, such as Figure 5 As shown, a plurality of first grooves 300 are formed on one edge of the flexible electrochromic film 30, exposing a portion of the second conductive layer 351 to form a plurality of first electrodes 302. A plurality of second grooves 301 are formed on the other edge of the electrochromic film, exposing a portion of the first conductive layer 312 to form a plurality of second electrodes 303. The first grooves 300 and the second grooves 301 are staggered. By forming staggered first grooves 300 (exposing the second conductive layer 351) and second grooves 301 (exposing the first conductive layer 312) on the edge of the flexible electrochromic film 30, an alternating electrode structure is formed. This design significantly improves the performance and reliability of the switching glass by optimizing the electric field distribution, enhancing the reliability of interface contact, and improving process tolerance.
[0052] In some embodiments, such as Figure 5As shown, the edge of the flexible electrochromic film 30 is formed with a plurality of first electrodes 302 and a plurality of second electrodes 303, the plurality of first electrodes 302 having the same polarity and the plurality of second electrodes 303 having the same polarity;
[0053] The flexible electrochromic film 30 is further provided with a first lead-out assembly and a second lead-out assembly. The first lead-out assembly includes a first busbar 304 and a first lead-out electrode 305 disposed on the first busbar 304. The first busbar 304 is connected to multiple first electrodes 302. The second lead-out assembly includes a second busbar 306 and a second lead-out electrode 307 disposed on the second busbar 306. The second busbar 306 is connected to multiple second electrodes 303. In this way, multiple sets of electrodes of the same polarity (first electrodes 302 and second electrodes 303) are provided at the edge of the flexible electrochromic film 30, and through the centralized power supply design of busbar + lead-out electrodes, the effects of efficient current distribution, reliable electrical connection and simplified external circuit are achieved.
[0054] This application embodiment also provides a terminal product, including the aforementioned dimming glass, wherein the terminal product is selected from any one of rearview mirrors, curtain walls, automotive sunroofs, automotive side windows, automotive windshields, electronic product housings, eyeglasses, vehicles, and display panels. The terminal product provided in this application embodiment includes the dimming glass described in the first aspect, and therefore possesses all the beneficial effects described in the first aspect.
[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0056] The above-described embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of the embodiments of this application.
Claims
1. A type of dimming glass, characterized in that, The device comprises a first curved glass, a first anti-wrinkle layer, a flexible electrochromic film, a second anti-wrinkle layer, and a second curved glass, which are stacked in sequence. The flexible electrochromic film comprises a first flexible transparent film, an ion storage layer, an electrochromic layer, an electrolyte layer, and a second flexible transparent film, which are stacked in sequence. The first anti-wrinkle layer and the second anti-wrinkle layer are in direct contact with the first curved glass and the second curved glass, respectively; or a first sealant layer is provided between the first anti-wrinkle layer and the first curved glass, and / or a second sealant layer is provided between the second anti-wrinkle layer and the second curved glass.
2. The dimming glass as described in claim 1, characterized in that, The first anti-wrinkle layer is an optically transparent pressure-sensitive adhesive layer; And / or, the second anti-wrinkle layer is an optically transparent pressure-sensitive adhesive layer.
3. The dimming glass as described in claim 2, characterized in that, The thickness of the first anti-wrinkle layer is 250μm to 500μm; And / or, the thickness of the second anti-wrinkle layer is 250μm to 500μm.
4. The dimming glass as described in claim 1, characterized in that, The first sealant layer is a PVB layer; And / or, the second sealant layer is a PVB layer.
5. The dimming glass as described in claim 1, characterized in that, The first flexible transparent film includes a first base layer and a first conductive layer. The first conductive layer is disposed on the side of the ion storage layer or electrolyte layer away from the electrochromic layer, and the first base layer is disposed on the side of the first conductive layer away from the electrochromic layer. And / or, the second flexible transparent film includes a second substrate layer and a second conductive layer, the second conductive layer being disposed on the side of the electrolyte layer or the ion storage layer away from the electrochromic layer, and the second substrate layer being disposed on the side of the second conductive layer away from the electrochromic layer.
6. The dimming glass as described in claim 5, characterized in that, The flexible electrochromic film has multiple first grooves on one side of its edge, and exposes a portion of the second conductive layer to form multiple first electrodes. The other side of the electrochromic film has multiple second grooves on its edge, and exposes a portion of the first conductive layer to form multiple second electrodes. The first grooves and the second grooves are arranged alternately.
7. The dimming glass according to any one of claims 1 to 6, characterized in that, The edge of the flexible electrochromic film is formed with a plurality of first electrodes and a plurality of second electrodes, wherein the plurality of first electrodes are of the same polarity and the plurality of second electrodes are of the same polarity; The flexible electrochromic film is further provided with a first lead-out component and a second lead-out component. The first lead-out component includes a first bus bar and a first lead-out electrode disposed on the first bus bar. The first bus bar is connected to multiple first electrodes. The second lead-out component includes a second bus bar and a second lead-out electrode disposed on the second bus bar. The second bus bar is connected to multiple second electrodes.
8. The dimming glass according to any one of claims 1 to 6, characterized in that, The first anti-wrinkle layer is selected from one of the following: acrylic adhesive layer, polyurethane adhesive layer, silicone adhesive layer, and epoxy resin adhesive layer; And / or, the second anti-wrinkle layer is selected from one of the following: acrylic adhesive layer, polyurethane adhesive layer, silicone adhesive layer, and epoxy resin adhesive layer.
9. A terminal product, characterized in that, Includes the dimming glass as described in any one of claims 1 to 8, wherein the end product is selected from any one of rearview mirrors, curtain walls, automotive sunroofs, automotive side windows, automotive windshields, housings of electronic products, eyeglasses, vehicles, and display panels.