Dimming devices and dimming apparatus
By setting a first sealant and a second sealant separately at the edge of the dimming film, the problem of discoloration failure caused by moisture sensitivity of the dimming material is solved, thus improving the sealing quality and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGYI INTELLIGENT TECH (SUZHOU) CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-06-30
AI Technical Summary
The dimming material is sensitive to moisture in the environment, which can cause it to change color and fail, thus shortening its service life.
The first and second sealants are respectively applied along the edge area of the dimming film and separated from each other to form a partition to avoid overlap, increase the contact area, prevent moisture from entering, and reduce thickness differences.
It improves sealing quality and bonding stability, reduces the risk of detachment or damage to the dimming diaphragm during the lamination and pressing process, and extends its service life.
Smart Images
Figure CN122307945A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of dimming technology, and in particular to a dimming device and dimming apparatus. Background Technology
[0002] With technological advancements, the demand for light and heat regulation is increasing, leading to greater attention being paid to dimming technology. Specifically, dimming technology refers to the technique of changing the optical properties of dimming materials under the influence of an applied electric field, external light intensity, and other external factors. Typically, this results in reversible changes in color and transparency in dimming devices containing the material. In recent years, dimming devices have been widely used in energy-saving windows, automotive rearview mirrors, display devices, and mobile terminals, demonstrating promising market prospects.
[0003] However, some dimming devices contain dimming materials that are very sensitive to moisture in the environment. When the dimming materials come into contact with moisture, it can easily lead to problems such as color change and failure of the dimming device, thereby accelerating the damage of the dimming device and reducing its service life. Summary of the Invention
[0004] In view of this, the purpose of this application is to provide a dimming device and dimming apparatus, which aims to solve the problem that dimming materials are prone to discoloration and failure after contact with water vapor in the related art.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A dimming device, comprising: A dimming diaphragm has a first surface, a second surface, and an end face connecting the first surface and the second surface, which are disposed opposite to each other. A plurality of first sealants, each first sealant having one end disposed on the first surface and the other end extending through the end face to the second surface; A plurality of second sealants, each of which has one end disposed on the second surface and the other end extending through the end face to the first surface; The first sealant and the second sealant are respectively disposed along the edge area of the dimming film, and adjacent first sealants and second sealants are spaced apart from each other.
[0006] In some embodiments, the first surface forms a first partition between adjacent first and second sealants; the second surface forms a second partition between adjacent first and second sealants. Projecting along the thickness direction of the dimming film, the orthographic projection of the first partition portion and the orthographic projection of the second partition portion at least partially overlap.
[0007] In some embodiments, the dimming film includes a first base layer, a first conductive layer, an electrochromic layer, a second conductive layer, and a second base layer that are sequentially stacked. The edge region of the dimming film has alternating first and second grooves; The first groove penetrates the first substrate layer, the first conductive layer, and the electrochromic layer, and exposes a portion of the second conductive layer to form a first electrode; The second groove penetrates the second base layer, the second conductive layer and the electrochromic layer, and exposes a portion of the first conductive layer to form a second electrode.
[0008] In some embodiments, along the arrangement direction of the first groove and the second groove, there is a first step between two adjacent first grooves and a second step between two adjacent second grooves; The length of the first partition is less than the length of the first step, and / or the length of the second partition is less than the length of the second step.
[0009] In some embodiments, the first step and the second step at least partially overlap to form an overlapping portion; the overlapping portion between the first partition portion and the second partition portion is located in the overlapping portion.
[0010] In some embodiments, the dimming film further includes a first busbar and a second busbar, wherein the first busbar is at least partially connected to the first electrode and the second busbar is at least partially connected to the second electrode; The first sealant and the second sealant on the first surface cover the first busbar, and the first sealant and the second sealant on the second surface cover the second busbar; The first busbar has a third partition portion, which is projected along the thickness direction of the dimming film, and the orthographic projection of the first partition portion is located in the orthographic projection of the third partition portion; and / or, the second busbar has a fourth partition portion, which is projected along the thickness direction of the dimming film, and the orthographic projection of the second partition portion is located in the orthographic projection of the fourth partition portion.
[0011] In some embodiments, the edge region of the dimming film is provided with a plurality of third grooves spaced apart from each other, and the third grooves connect adjacent first grooves and second grooves; The third groove penetrates the first conductive layer, the electrochromic layer, and the second conductive layer, and the third groove also penetrates at least one of the first substrate layer and the second substrate layer.
[0012] In some embodiments, the third groove further penetrates the first base layer and the second base layer, and the third groove is provided with an insulating portion, the insulating portion having a first contact surface and a second contact surface disposed opposite to each other; The end of the first busbar near the insulating part is in contact with the first contact surface of the insulating part, and the end of the second busbar near the insulating part is in contact with the second contact surface of the insulating part.
[0013] In some embodiments, the interval between adjacent first sealant and second sealant is W, where W ranges from 2 mm to 12 mm.
[0014] Secondly, this application provides a dimming device, comprising a first substrate layer, a first adhesive layer, the dimming device, a second adhesive layer, and a second substrate layer stacked sequentially, wherein a sealing element is provided on the periphery of the dimming film, and the sealing element is disposed between the first substrate layer and the second substrate layer.
[0015] The beneficial effects of this application are as follows: By jointly applying the first sealant and the second sealant to the first surface, the second surface, and the end face, not only can the sealing quality of the first and second sealants on the edge area of the dimming device be guaranteed, but the adhesion stability between the first and second sealants and the edge area can also be improved, preventing liquid or moisture from entering the dimming film from the end face. Furthermore, by separating adjacent first and second sealants on the dimming film, excessive local thickness in the edge area due to overlap of the first and second sealants is avoided, reducing the thickness difference in the edge area of the dimming film and thus lowering the risk of the dimming film detaching or breaking during lamination.
[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0017] 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.
[0018] Figure 1 A schematic diagram of the dimming device from one viewpoint is shown in some embodiments of this application; Figure 2 Show Figure 1 A cross-sectional view of the first embodiment of the middle AA section; Figure 3 Show Figure 1 A cross-sectional view of the second embodiment of the middle AA section; Figure 4 Show Figure 1 A cross-sectional view of the first embodiment of the middle BB section; Figure 5 Show Figure 1 A cross-sectional view of the second embodiment of the middle BB section; Figure 6 Show Figure 1 A cross-sectional view of the third embodiment of the middle AA section; Figure 7 Show Figure 1 A cross-sectional view of the fourth embodiment of the middle AA section; Figure 8 Show Figure 7 Enlarged view of the structure at point B; Figure 9 This is a schematic diagram of the dimming device from one perspective in some embodiments of this application.
[0019] Explanation of key component symbols: 100 - Dimming film; 110 - Edge area; 111 - First surface; 112 - Second surface; 113 - First groove; 114 - Second groove; 115 - Third groove; 1151 - Insulating portion; 116 - First step; 117 - Second step; 118 - Overlapping portion; 119 - End face; 120 - First substrate layer; 130 - First conductive layer; 131 - Second electrode; 140 - Electrochromic layer; 150 - Second conductive layer; 151 - First electrode; 160 - Second substrate layer ; 200 - First sealant; 210 - First sealing layer; 220 - Second sealing layer; 300 - Second sealant; 310 - Third sealing layer; 320 - Fourth sealing layer; 400 - First partition; 500 - Second partition; 600 - First busbar; 610 - Third partition; 700 - Second busbar; 710 - Fourth partition; 800 - First substrate layer; 900 - First adhesive layer; 1000 - Second adhesive layer; 1100 - Second substrate layer; 1200 - Sealing element. Detailed Implementation
[0020] The embodiments of this application are described in detail below. Examples of the 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.
[0021] 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.
[0022] 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.
[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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. "End face" refers to the surface extending along the thickness direction of the dimming device or dimming diaphragm after it has been placed on a horizontal plane, i.e., the surface connecting the upper and lower surfaces of the dimming device or dimming diaphragm. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0024] Since the edges of dimming devices are usually in direct contact with the external environment, moisture can easily seep through these edges and come into contact with the dimming material, leading to problems such as discoloration and failure of the dimming film. Therefore, it is necessary to seal the edges of the dimming film. However, the edges of the dimming film have thickness differences. In existing technologies, during the sealing process, the sealant adheres to the entire edge of the dimming film, increasing the thickness difference between different areas of the film edge. This can cause the dimming film to detach or break during the lamination process.
[0025] like Figures 1 to 9 As shown, some embodiments of this application provide a dimming device, which includes a dimming diaphragm 100, a first sealant 200, and a second sealant 300.
[0026] like Figure 1As shown, the dimming film 100 has an edge region 110, which is a non-visible area within the dimming film 100. It should be noted that the dimming film 100 also includes a central portion, with the edge region 110 adjacent to and surrounding the central portion to form the dimming film 100. The central portion corresponds to the visible area of the dimming film 100. The area of the central portion is larger than the area of the edge region 110, and the central portion serves to adjust the transmittance of the dimming film 100 or the amount of light passing through it. Furthermore, in some embodiments of this application, the central portion is a color-changing area within the dimming film 100, and the edge region 110 is a non-color-changing area within the dimming film 100.
[0027] Along the thickness direction of the dimming diaphragm 100, the dimming diaphragm 100 has a first surface 111, a second surface 112 disposed opposite to each other, and an end face connecting the first surface 111 and the second surface 112. In this application, "end face" refers to the outer surface of the device along its thickness direction when the device is placed on a horizontal plane.
[0028] The device includes a plurality of first sealant 200, each of which has one end disposed on a first surface 111 and the other end extending through an end face 119 to a second surface 112; and a plurality of second sealant 300, each of which has one end disposed on a second surface 112 and the other end extending through an end face 119 to a first surface 111.
[0029] like Figure 4 and Figure 5 As shown, in some embodiments of this application, the dimming film 100 includes an end face 119 connecting the first surface 111 and the second surface 112. That is, the side of the end face 119 adjacent to the first surface 111 is connected to the edge of the first surface 111, and the side of the end face 119 adjacent to the second surface 112 is connected to the edge of the second surface 112, so as to form the outer surface of the dimming film 100.
[0030] It is understood that in the above embodiments, the first sealant 200 covers part of the end face 119 and part of the second surface 112, increasing the contact area between the first sealant 200 and the edge area 110. This not only effectively prevents the sealant from detaching in the area of the end face 119 near the second surface 112 and improves the bonding stability between the first sealant 200 and the edge area 110, but also prevents liquid or moisture from entering the dimming diaphragm 100 from the end face 119.
[0031] In other embodiments, the second sealant 300 covers the end face 119 and a portion of the first surface 111, increasing the contact area between the second sealant 300 and the edge area 110. This not only effectively prevents the sealant from detaching in the area of the end face 119 near the first surface 111 and improves the bonding stability between the second sealant 300 and the edge area 110, but also prevents liquid or moisture from entering the dimming diaphragm 100 from the end face 119.
[0032] In some other embodiments, both ends of the first sealant 200 and the second sealant 300 are fixed to the first surface 111 and the second surface 112 respectively after passing through the end face 119.
[0033] Furthermore, such as Figure 2 and Figure 3 As shown, the first sealant 200 and the second sealant 300 are respectively disposed along the edge region 110 of the dimming film 100. Adjacent first sealants 200 and second sealants 300 are spaced apart from each other, that is, the first sealants 200 and second sealants 300 are disposed alternately on the first surface 111 and alternately on the second surface 112. Therefore, the first sealants 200 and second sealants 300 can be prevented from overlapping, thus ensuring the uniformity of the thickness of the edge region 110. It should be noted that there is a thickness difference in the edge region 110 of the dimming film 100. If the sealants in the edge region 110 overlap, the thickness of the overlapping part will be greater than the thickness of other edge regions, resulting in a greater thickness difference in the edge region 110. This makes it easy for the dimming film 100 to detach or break during the lamination process.
[0034] In this embodiment, the interval between adjacent first sealant 200 and second sealant 300 is W, and the range of W is 2mm-12mm. Specifically, the length of W can be any length range among 2mm-3mm, 3mm-4mm, 4mm-5mm, 5mm-6mm, 6mm-7mm, 7mm-8mm, 8mm-9mm, 9mm-10mm, 10-11mm, and 11-12mm.
[0035] Based on this, in this embodiment, by misaligning the first sealant 200 and the second sealant 300, the sealing quality of the first sealant 200 and the second sealant 300 on the edge area 110 of the dimming film 100 is ensured, while preventing the orthographic projections of the first sealant 200 and the second sealant 300 along the thickness direction of the dimming film 100 from overlapping, thereby reducing the thickness difference of the edge area 110 and reducing the risk of the dimming film detaching or breaking during the lamination process.
[0036] It should be noted that, in the embodiments of this application, the first sealant 200 and the second sealant 300 can be any one of rubber-type sealant, resin-type sealant, oil-based sealant, vulcanized sealant, heat-converting sealant, oxidation-curing sealant, solvent-evaporating and solidifying sealant, liquid sealant, and high-elasticity sealant.
[0037] like Figures 2 to 7 As shown in some embodiments of this application, it should be noted that the dimming film 100 includes a first base layer 120, a first conductive layer 130, an electrochromic layer 140, a second conductive layer 150, and a second base layer 160 stacked sequentially.
[0038] Both the first substrate layer 120 and the second substrate layer 160 are transparent substrates. The "transparent substrate" is an optically grade transparent material, specifically a flexible substrate material, such as polyethylene terephthalate (PET), polycarbonate (PC), polyimide (PI), cyclic olefin copolymers, or cellulose triacetate. The first substrate layer 120 and the second substrate layer 160 can also be glass substrates.
[0039] In addition, both the first conductive layer 130 and the second conductive layer 150 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.
[0040] The electrochromic layer 140 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) layers. For the electrochromic (EC) type electrochromic layer 140, it may include a color-changing material layer, an electrolyte layer, and an ion storage layer stacked sequentially. The materials of the color-changing material layer, electrolyte layer, and ion storage layer can be those available in the prior art, and this application does not impose any special limitations on them.
[0041] In some embodiments of this application, the edge region 110 of the dimming film 100 has alternating first grooves 113 and second grooves 114. The number of first grooves 113 and second grooves 114 can be one, two or more, and can be specifically set according to the actual situation.
[0042] In addition, the first groove 113 penetrates the first base layer 120, the first conductive layer 130 and the electrochromic layer 140, and exposes a portion of the second conductive layer 150, so as to form a first electrode 151 through the exposed portion of the second conductive layer 150, so as to be electrically connected to an external power source through the first electrode 151.
[0043] The second groove 114 penetrates the second base layer 160, the second conductive layer 150 and the electrochromic layer 140, and exposes a portion of the first conductive layer 130 to form a second electrode 131, which is connected to an external power source, thereby connecting the first conductive layer 130 and the second conductive layer 150 to the external power source respectively.
[0044] In some embodiments of this application, such as Figure 5 As shown, the first sealant 200 and the second sealant 300 respectively form a "U"-shaped sealing structure on the end face 119 to form a seal on the edge of the dimming diaphragm 100.
[0045] In other embodiments, such as Figure 4 and Figure 6 As shown, the first sealant 200 includes a first sealing layer 210 and a second sealing layer 220, and the second sealant 300 includes a third sealing layer 310 and a fourth sealing layer 320. The first sealing layer 210 covering the first surface and the second sealing layer 220 covering the second surface are connected at their end faces to form a "Y"-shaped sealing structure. In addition, the third sealing layer 310 covering the first surface 111 and the fourth sealing layer 320 covering the second surface 112 are connected at their end faces to form a "Y"-shaped sealing structure, thereby forming a seal on the edge of the dimming diaphragm 100.
[0046] For example, the first sealant 200 may be a Y-shaped sealant and the second sealant 300 may be a U-shaped sealant; or, the first sealant 200 may be a U-shaped sealant and the second sealant 300 may be a U-shaped sealant; or, the first sealant 200 may be a U-shaped sealant and the second sealant 300 may be a Y-shaped sealant; or, the first sealant 200 may be a Y-shaped sealant and the second sealant 300 may be a Y-shaped sealant.
[0047] It should be noted that, in the above embodiments of this application, the inner surface of the first groove 113 includes the side surface of the first base layer 120, the first conductive layer 130 and the electrochromic layer 140, and the inner surface of the second groove 114 includes the side surface of the second base layer 160, the second conductive layer 150 and the electrochromic layer 140.
[0048] In the dimming film 100, the stability of the color-changing material in the electrochromic layer 140 is crucial, affecting the color-changing effect of the entire dimming device. By setting the first sealant 200, the inner surface of the first groove 113 or the inner surface of the second groove 114 can be covered and sealed. Similarly, by setting the second sealant 300, the inner surface of the first groove 113 or the inner surface of the second groove 114 can be covered and sealed, thereby preventing moisture, impurities and other contaminants from entering the interior of the electrochromic layer 140 through the inner surface of the first groove 113 or the inner surface of the second groove 114, thus achieving the sealing and protection of the electrochromic layer 140 in the center of the dimming film.
[0049] In this application, by setting a first sealant 200 and a second sealant 300, the sealing at the inner surface of the first groove 113 and the inner surface of the second groove 114 is strengthened to better ensure the sealing effect. Meanwhile, since the edge region 110 of the dimming film 100 has alternating first grooves 113 and second grooves 114, the thickness at the first grooves 113 and second grooves 114 is thinner, while the thickness between the first grooves 113 and second grooves 114 is thicker. Therefore, considering the thickness difference of the edge region 110, the first sealant 200 and the second sealant 300 are spaced apart and alternately arranged along the first grooves 113 and second grooves 114 of the edge region 110 to control the thickness of the edge region 110 of the dimming film 100, avoiding excessive thickness difference between the grooved and non-grooved areas of the edge region 110 of the dimming film 100, which could lead to the dimming film 100 detaching or breaking during the lamination process.
[0050] For example, one end of each first sealant 200 is disposed on the first surface 111 and covers the inner surface of the first groove 113, and the other end extends through the end face 119 to the second surface 112; one end of each second sealant 300 is disposed on the second surface 112 and covers the inner surface of the second groove 114, and the other end extends through the end face 119 to the first surface 111; the first sealant 200 and the second sealant 300 are alternately disposed along the edge region 110 of the dimming diaphragm 100.
[0051] like Figure 2As shown, the first surface 111 forms a first partition 400 between adjacent first sealant 200 and second sealant 300; the second surface 112 forms a second partition 500 between adjacent first sealant 200 and second sealant 300. Specifically, in some embodiments of this application, the first sealing layer 210 and the third sealing layer 310 are spaced apart along the arrangement direction of the first groove 113 and the second groove 114, and a first partition 400 is formed between two adjacent first sealing layers 210 and third sealing layers 310; and / or, the third sealing layer and the fourth sealing layer are spaced apart along the arrangement direction of the first groove and the second groove, and a second partition 500 is formed between two adjacent second sealing layers 220 and fourth sealing layers 320.
[0052] It is understood that in this embodiment, the first sealing layer 210 and the third sealing layer 310 are spaced apart along the arrangement direction of the first groove 113 and the second groove 114, and a first partition 400 is formed between two adjacent first sealing layers 210 and third sealing layers 310 to create a clearance space in the edge region 110. By controlling the position of the interval between two adjacent first sealing layers 210 and third sealing layers 310, that is, by adjusting the position of the first partition 400 on the first surface 111, the thickness difference of the edge region 110 can be adjusted.
[0053] For example, since the edge region 110 has a thickness difference, by setting the first partition portion 400 in the area where the edge region 110 has a larger thickness, the thickness of the area where the edge region 110 has a larger thickness is avoided, thereby reducing the thickness difference of the edge region 110 and improving the stability and safety of the dimming film 100 during the lamination and pressing process.
[0054] It is understood that in other embodiments, the second sealing layer 220 and the fourth sealing layer 320 are spaced apart along the arrangement direction of the first groove 113 and the second groove 114, and a second partition 500 is formed between two adjacent second sealing layers 220 and fourth sealing layers 320 to create a clearance space in the edge region 110. By controlling the position of the interval between two adjacent second sealing layers 220 and fourth sealing layers 320, that is, by adjusting the position of the second partition 500 on the second surface 112, the thickness difference of the edge region 110 can be adjusted.
[0055] For example, since the edge region 110 has a thickness difference, by providing the second partition portion 500 in the area where the edge region 110 has a larger thickness, the thickness of the area where the edge region 110 has a larger thickness is avoided, thereby reducing the thickness difference of the edge region 110 and improving the stability and safety of the dimming film 100 during the lamination and pressing process.
[0056] In the above embodiments, by setting the first partition portion 400 and the second partition portion 500 in the area where the edge region 110 has a larger thickness, not only is the thickness of the area where the edge region 110 has a larger thickness not increased, but the uniformity of the increase in thickness of the area where the edge region 110 has a smaller thickness is also ensured. This further reduces the thickness difference of the edge region 110, improves the stability and safety of the dimming film 100 during the lamination and pressing process, and also enables the first sealant 200 and the second sealant 300 to form an effective seal for the edge region 110, ensuring the sealing quality of the edge region 110.
[0057] like Figure 2 As shown, in some embodiments of this application, when projected along the thickness direction of the dimming film 100, the orthographic projection of the first partition portion 400 and the orthographic projection of the second partition portion 500 at least partially overlap.
[0058] In some embodiments, when projected along the thickness direction of the dimming film 100, the orthographic projections of the first partition portion 400 and the second partition portion 500 at least partially overlap. In other embodiments, such as Figure 2 As shown, when projected along the thickness direction of the dimming film 100, the orthographic projection of the first partition portion 400 and the orthographic projection of the second partition portion 500 completely overlap.
[0059] Understandably, the overlapping portion between the first partition portion 400 and the second partition portion 500 can be adjusted according to the thickness difference of the edge region 110. It should be noted that, due to the uneven thickness of the edge region 110, by placing the overlapping portion between the first partition portion 400 and the second partition portion 500 in the area of greater thickness of the edge region 110, the first sealant 200 and the second sealant 300 are avoided from being placed in the area of greater thickness of the edge region 110. That is, the first sealant 200 and the second sealant 300 are placed in the area of relatively less thickness of the edge region 110, increasing the thickness of the less thick area of the edge region 110, thereby reducing the thickness difference of the edge region 110 and improving the uniformity of the edge region 110 thickness.
[0060] In some embodiments of this application, along the arrangement direction of the first groove 113 and the second groove 114, there is a first step 116 between two adjacent first grooves 113 and a second step 117 between two adjacent second grooves 114.
[0061] The length of the first partition 400 is less than the length of the first step 116, so that the first sealing layer 210 partially covers the first groove 113 on the first surface 111 and the other part covers the first surface 111. This allows the first sealing layer 210 located in the first groove 113 to cover the groove wall of the first groove 113, preventing moisture from contacting the electrochromic layer 140 from the groove wall of the first groove 113, thus ensuring the service life of the color-changing material in the dimming film 100.
[0062] In some embodiments, such as Figure 2 As shown, by making the length of the first partition portion 400 less than the length of the first step 116, the contact area between the first sealing layer 210, the third sealing layer 310 and the first surface 111 is increased by reducing the length of the first partition portion 400, thereby improving the stability of the connection between the first sealing layer 210 and the third sealing layer 310 and the dimming diaphragm 100, and thus improving the sealing quality of the first sealant 200 and the second sealant 300 in the edge area 110.
[0063] In other embodiments, such as Figure 2 As shown, by making the length of the second partition portion 500 less than the length of the second step 117, the contact area between the second sealing layer 220 and the fourth sealing layer 320 and the second surface 112 is increased by reducing the length of the second partition portion 500, thereby improving the stability of the connection between the second sealing layer 220 and the fourth sealing layer 320 and the dimming diaphragm 100, and thus improving the sealing quality of the first sealant 200 and the second sealant 300 in the edge area 110.
[0064] like Figure 2 As shown, in some embodiments of this application, the first step 116 and the second step 117 at least partially overlap to form an overlapping portion 118. It should be noted that, along the thickness direction of the dimming film 100, the overlapping portion 118 includes a first base layer 120, a first conductive layer 130, an electrochromic layer 140, a second conductive layer 150, and a second base layer 160 stacked together. It can be understood that the thickness of the overlapping portion 118 is greater than the thickness of other areas of the edge region 110.
[0065] The overlapping portion between the first partition portion 400 and the second partition portion 500 is located in the overlapping portion 118 to prevent the first sealant 200 and the second sealant 300 from overlapping with the overlapping portion 118 respectively, thereby avoiding increasing the thickness of the overlapping portion 118. At the same time, it can increase the thickness of the non-overlapping portion of the edge region 110, thereby reducing the thickness difference between the overlapping portion 118 and the non-overlapping portion of the edge region 110, and thus improving the uniformity of the thickness of the edge region 110.
[0066] like Figure 7As shown, in some embodiments of this application, the dimming film 100 further includes a first busbar 600 and a second busbar 700. The first busbar 600 is at least partially connected to the first electrode 151, and the second busbar 700 is at least partially connected to the second electrode 131, so as to accelerate the conductivity of the dimming film 100 and improve the color-changing speed of the dimming film 100 through the first busbar 600 and the second busbar 700. The first sealant 200 and the second sealant 300 on the first surface 111 cover the first busbar 600, and the first sealant 200 and the second sealant 300 on the second surface 112 cover the second busbar 700.
[0067] In some embodiments, the first busbar 600 is provided with a third partition 610, which is projected along the thickness direction of the dimming diaphragm. The orthographic projection of the first partition 600 is located in the orthographic projection of the third partition 610. That is, the end of the first sealing layer 210 or the third sealing layer 310 is provided beyond the end of the first busbar 600. On the one hand, the first busbar 600 is fixed to the first surface 111 by the first sealing layer 210 and the third sealing layer 310, ensuring the stability of the first busbar 600 in the edge region 110. On the other hand, it can prevent the part of the first busbar 600 facing the first partition 400 from being exposed to the outside, thereby preventing the first busbar 600 from being corroded by water vapor in the environment and improving the service life of the first busbar 600.
[0068] In other embodiments, the second busbar 700 is provided with a fourth partition 710, which is projected along the thickness direction of the dimming film. The orthographic projection of the second partition 500 is located in the orthographic projection of the fourth partition 710. That is, the end of the second sealing layer 220 or the fourth sealing layer 320 is provided beyond the end of the second busbar 700. On the one hand, the second busbar 700 is fixed to the second surface 112 by the second sealing layer 220 and the fourth sealing layer 320, ensuring the stability of the second busbar 700 in the edge region 110. On the other hand, it can prevent the part of the second busbar 700 facing the second partition 500 from being exposed to the outside, thereby preventing the second busbar 700 from being corroded by water vapor in the environment and improving the service life of the second busbar 700.
[0069] like Figure 3 and Figure 7 As shown, in some embodiments of this application, the edge region 110 of the dimming film is provided with a plurality of mutually spaced third grooves 115, and the third grooves 115 connect adjacent first grooves 113 and second grooves 114. It can be understood that the third grooves 115 are disposed between adjacent first grooves 113 and second grooves 114.
[0070] The third groove 115 penetrates the first conductive layer 130, the electrochromic layer 140, and the second conductive layer 150, and also penetrates at least one of the first substrate layer 120 and the second substrate layer 160. The structure of the third groove 115 can be specifically set according to the thickness of the edge region 110, so as to adjust the thickness of the edge region 110 by controlling the thickness of the third groove 115 along the thickness direction of the dimming film 100.
[0071] It is understood that in some embodiments, the third groove 115 penetrates the first substrate layer 120, the first conductive layer 130, the electrochromic layer 140, and the second conductive layer 150. In other embodiments, the third groove 115 penetrates the second substrate layer 160, the second conductive layer 150, the electrochromic layer 140, and the first conductive layer 130.
[0072] In the above embodiments of this application, the dimming film 100 is provided with busbars on both sides in the thickness direction. For example, the busbars may be other conductive materials such as conductive copper foil, conductive adhesive and conductive resin. Thus, a multi-electrode structure can be formed at the edge of the dimming film 100 to accelerate the color change speed of the dimming film 100.
[0073] like Figure 8 As shown, in some embodiments of this application, the third groove 115 also penetrates the first base layer 120 and the second base layer 160. An insulating portion 1151 is provided in the third groove 115. The insulating portion 1151 has a first contact surface and a second contact surface disposed opposite to each other. The end of the first busbar 600 near the insulating portion 1151 contacts the first contact surface of the insulating portion 1151, and the end of the second busbar 700 near the insulating portion 1151 contacts the second contact surface of the insulating portion 1151.
[0074] In this embodiment, the third groove 115 penetrates the first substrate layer 120, the first conductive layer 130, the electrochromic layer 140, the second conductive layer 150, and the second substrate layer 160. By providing the third groove 115 in the overlapping portion 118, the thickness difference of the edge region 110 is reduced, and the uniformity of the thickness of the edge region 110 is improved.
[0075] Furthermore, by providing the insulating portion 1151, it is possible to prevent the first busbar 600 exposed to the first partition portion 400 and the second busbar 700 exposed to the second partition portion 500 from coming into contact under pressure, thus avoiding a short circuit in the dimming diaphragm 100. This ensures the stability and safety of the electrical connection between the first busbar 600 and the second busbar 700 and the external power supply, respectively. It should be noted that in some embodiments, the thickness of the insulating portion 1151 is greater than the thickness of the first groove 113 and / or the second groove 114.
[0076] like Figure 9As shown, some embodiments of this application provide a dimming device, including a first substrate layer 800, a first adhesive layer 900 and a dimming device as described in any of the above embodiments, a second adhesive layer 1000 and a second substrate layer 1100, which are stacked sequentially.
[0077] The dimming device also includes a sealing element 1200, which is disposed between the first substrate layer 800 and the second substrate layer 1100. Specifically, the side of the sealing element 1200 facing the first substrate layer 800 is connected to the first substrate layer 800, and the side of the sealing element 1200 facing the second substrate layer 1100 is connected to the second substrate layer 1100. The first adhesive layer 900 and the second adhesive layer 1000 are respectively connected to the sealing element 1200 on the side facing the sealing element 1200, so that the first substrate layer 800, the sealing element 1200 and the second substrate layer 1100 enclose a sealed space, in which the dimming device is housed.
[0078] Specifically, both the first substrate layer 800 and the second substrate layer 1100 are transparent structures. For example, the first substrate layer 800 and the second substrate layer 1100 can be transparent glass, transparent acrylic sheets, or transparent PVC sheets. Preferably, the first substrate layer 800 and the second substrate layer 1100 are glass, and by sandwiching the dimming device between the first substrate layer 800 and the second substrate layer 1100, a sealed dimming device is formed, preventing the dimming diaphragm 100 from contacting external moisture and oxygen, thereby improving the service life of the dimming diaphragm 100 and the service life of the dimming device.
[0079] The material of the seal 1200 includes one of the adhesives conventional in the art that have the effect of blocking water and oxygen, such as pressure-sensitive adhesives, hot melt adhesives, UV-curable adhesives, thermosetting adhesives, or UV-heat-cured adhesives. It is understood that in some cases, the seal 1200 may be made of the same material as the first adhesive layer 900 and the second adhesive layer 1000.
[0080] Additionally, a shielding layer is provided on the surface of the first substrate layer 800 and / or the second substrate layer 1100 corresponding to the edge area 110 of the dimming device. The shielding layer can be located on the inner or outer surface of the first substrate layer 800 and / or the second substrate layer 1100; the shielding layer can be made of shielding materials such as metal or black ink. To prevent users from directly seeing the edge area 110 of the dimming device through the transparent first substrate layer 800 and / or the second substrate layer 1100, and to improve the overall appearance of the device, a shielding layer is provided at the edge of the first substrate layer 800 and / or the second substrate layer 1100. This shielding layer also blocks the busbar and sealant of the dimming device, thereby enhancing the aesthetics of the dimming device.
[0081] The dimming film 100 or dimming device of some embodiments of this application can be used in dimming products, and the dimming products have the functions and beneficial effects of the dimming device or dimming device in any of the above embodiments, which will not be described in detail here.
[0082] The dimming products include any one of the following: rearview mirrors, curtain walls, car sunroofs, car side windows, car windshields, electronic product casings, eyeglasses, vehicles, and display panels. Vehicles include cars, trains, airplanes, ships, etc.; electronic products include mobile phones, computers, tablets, smart wearable devices, etc.; eyeglasses include ordinary eyeglasses, AR (Augmented Reality) eyeglasses, VR (Virtual Reality) eyeglasses, sunglasses, or ski goggles, etc.
[0083] 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.
[0084] 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 dimming device, characterized in that, include: A dimming diaphragm has a first surface, a second surface, and an end face connecting the first surface and the second surface, which are disposed opposite to each other. A plurality of first sealants, each first sealant having one end disposed on the first surface and the other end extending through the end face to the second surface; A plurality of second sealants, each of which has one end disposed on the second surface and the other end extending through the end face to the first surface; The first sealant and the second sealant are respectively disposed along the edge area of the dimming film, and adjacent first sealants and second sealants are spaced apart from each other.
2. The dimming device according to claim 1, characterized in that, The first surface forms a first partition between adjacent first and second sealants; the second surface forms a second partition between adjacent first and second sealants. Projecting along the thickness direction of the dimming film, the orthographic projection of the first partition portion and the orthographic projection of the second partition portion at least partially overlap.
3. The dimming device according to claim 2, characterized in that, The dimming film includes a first base layer, a first conductive layer, an electrochromic layer, a second conductive layer, and a second base layer, which are stacked sequentially. The edge region of the dimming film has alternating first and second grooves; The first groove penetrates the first substrate layer, the first conductive layer, and the electrochromic layer, and exposes a portion of the second conductive layer to form a first electrode; The second groove penetrates the second base layer, the second conductive layer and the electrochromic layer, and exposes a portion of the first conductive layer to form a second electrode.
4. The dimming device according to claim 3, characterized in that, Along the arrangement direction of the first groove and the second groove, there is a first step between two adjacent first grooves and a second step between two adjacent second grooves; The length of the first partition is less than the length of the first step; and / or, the length of the second partition is less than the length of the second step.
5. The dimming device according to claim 4, characterized in that, The first step and the second step at least partially overlap to form an overlapping portion, and the overlapping portion between the first partition portion and the second partition portion is located in the overlapping portion.
6. The dimming device according to claim 3, characterized in that, The dimming film further includes a first busbar and a second busbar, wherein the first busbar is at least partially connected to the first electrode and the second busbar is at least partially connected to the second electrode; The first sealant and the second sealant on the first surface cover the first busbar, and the first sealant and the second sealant on the second surface cover the second busbar; The first busbar has a third partition portion, which, when projected along the thickness direction of the dimming diaphragm, has its orthographic projection located within the orthographic projection of the third partition portion; and / or, The second busbar has a fourth partition portion, which is projected along the thickness direction of the dimming film. The orthographic projection of the second partition portion is located in the orthographic projection of the fourth partition portion.
7. The dimming device according to claim 6, characterized in that, The edge area of the dimming film is provided with a plurality of third grooves that are spaced apart from each other, and the third grooves are connected to adjacent first grooves and second grooves; The third groove penetrates the first conductive layer, the electrochromic layer, and the second conductive layer, and the third groove also penetrates at least one of the first substrate layer and the second substrate layer.
8. The dimming device according to claim 7, characterized in that, The third groove also penetrates the first base layer and the second base layer. An insulating part is provided in the third groove. The insulating part has a first contact surface and a second contact surface that are arranged opposite to each other. The end of the first busbar near the insulating part is in contact with the first contact surface of the insulating part, and the end of the second busbar near the insulating part is in contact with the second contact surface of the insulating part.
9. The dimming device according to claim 1, characterized in that, The interval between adjacent first and second sealants is W, and W ranges from 2mm to 12mm.
10. A dimming device, characterized in that, The film comprises a first substrate layer, a first adhesive layer, a dimming device as described in any one of claims 1 to 9, a second adhesive layer, and a second substrate layer, which are stacked sequentially. A sealing element is provided on the periphery of the dimming film, and the sealing element is disposed between the first substrate layer and the second substrate layer.