Electrochromic module and terminal product

Abstract

The utility model provides an electrochromic module and a terminal product, and relates to the technical field of electrochromism. The electrochromic module comprises a first base material, an electrochromic membrane and a second base material which are stacked in sequence, the electrochromic membrane comprises two conductive layers, at least part of one conductive layer protrudes out of the other conductive layer, and the protruding part is connected with the leading-out structure; the lead-out structure is provided with a binding part connected with the conductive layers, and the binding part and the two conductive layers are located in a space defined by the first base material and the second base material; and a sealant layer is arranged between the first base material and the second base material and wraps the binding part and the end face of the electrochromic membrane. The end face of the conductive layer is prevented from being exposed out of the sealing glue layer, so that the contact interfaces between the conductive layer and the sealing glue layer are all located in the sealing glue layer, water and oxygen are prevented from entering the diaphragm from the conductive layer on the end face, the sealing performance is improved, and the structural stability of the whole electrochromic module can be maintained.

Description

Technical Field

[0001] This utility model relates to the field of electrochromic technology, and in particular to an electrochromic module and terminal product. Background Technology

[0002] An electrochromic device is a device that can change color under the influence of voltage. The core of an electrochromic device is an electrochromic material. When a voltage is applied or removed, the electrochromic material changes its light absorption characteristics, thereby changing its color.

[0003] In electrochromic films, the electrochromic device needs to be sealed around its perimeter. Part of the conductive layer in the electrochromic film needs to protrude to connect with the lead-out structure. The sealant contacts this protruding conductive layer to seal the electrochromic film. However, the end face of this conductive layer remains exposed outside the sealant, allowing moisture and oxygen to easily penetrate into the electrochromic film from this interface, compromising the structural stability of the entire electrochromic device. Utility Model Content

[0004] In order to solve the problems existing in the prior art, one of the objectives of this utility model is to provide an electrochromic module.

[0005] This utility model provides the following technical solution:

[0006] An electrochromic module includes a first substrate, an electrochromic film, and a second substrate stacked sequentially. The electrochromic film includes two conductive layers, one of which at least partially protrudes from the other conductive layer, and the protruding portion is connected to a lead-out structure. The lead-out structure has a bonding portion connected to the conductive layer, and the bonding portion and the two conductive layers are located within a space defined by the first substrate and the second substrate. A sealant layer is provided between the first substrate and the second substrate, and the sealant layer covers the bonding portion and the end face of the electrochromic film.

[0007] As a further optional embodiment of the electrochromic module, the electrochromic module further includes a first adhesive layer and a second adhesive layer, wherein the electrochromic film is connected to the first substrate through the first adhesive layer and to the second substrate through the second adhesive layer, and the sealant layer further covers the first adhesive layer and the second adhesive layer.

[0008] As a further optional embodiment of the electrochromic module, the electrochromic film includes a first substrate, a first conductive layer, a color-changing material layer, a second conductive layer, and a second substrate stacked sequentially. The length of the second conductive layer is greater than that of the first conductive layer, and the portion of the second conductive layer extending beyond the first conductive layer protrudes from the color-changing material layer and is connected to the bonding portion, and is covered by the sealant layer.

[0009] As a further optional embodiment of the electrochromic module, the end of the electrochromic film protrudes beyond the first adhesive layer and / or the second adhesive layer, and the sealant layer further covers the end face of the first adhesive layer and / or the end face of the second adhesive layer.

[0010] As a further optional embodiment of the electrochromic module, the thickness of the bonding portion is A, the sum of the thicknesses of the color-changing material layer, the second conductive layer, the second substrate and the second adhesive layer is B1, the sum of the thicknesses of the color-changing material layer, the first conductive layer, the first substrate and the first adhesive layer is B2, and A < B1 and / or A < B2.

[0011] As a further optional feature of the electrochromic module, A < B1-30 μm and / or A < B2-30 μm.

[0012] As a further optional solution for the electrochromic module, the first substrate and / or the second substrate adopt a water and oxygen barrier layer.

[0013] The water and oxygen barrier layer includes a base layer and a barrier coating layer stacked together, wherein the barrier coating layer is disposed on at least one side of the base layer.

[0014] As a further optional solution for the electrochromic module, the barrier coating is disposed on one side of the substrate layer, and an antireflective layer or a hardening layer is disposed on the other side of the substrate layer.

[0015] As a further alternative to the electrochromic module, the surface of the lead-out structure is provided with a sealant affinity layer.

[0016] As a further optional embodiment of the electrochromic module, the width of the lead-out structure is D, and the side width of the electrochromic module where the lead-out structure is located is W, where 0.5mm < D < W / 3.

[0017] Another objective of this utility model is to provide a terminal product.

[0018] This utility model provides the following technical solution:

[0019] A terminal product includes the aforementioned electrochromic module, wherein the terminal product includes any one of a rearview mirror, a curtain wall, a car sunroof, a car side window, a car windshield, a housing of an electronic product, glasses, and a display panel of an electronic product.

[0020] The embodiments of this utility model have the following beneficial effects:

[0021] In the aforementioned electrochromic module, the sealant layer extends circumferentially along the electrochromic film, covering the end face of the electrochromic film and the bonding portion of the lead-out structure. This prevents the end face of the conductive layer from being exposed outside the sealant layer, ensuring that the interface between the conductive layer and the sealant layer is located inside the sealant layer. This blocks the entry of water and oxygen between the conductive layer and the sealant layer, improving the sealing performance and helping to maintain the structural stability of the entire electrochromic module.

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A partial cross-sectional view of the structure of an electrochromic module in the relevant prior art is shown;

[0025] Figure 2 A partial cross-sectional view of an electrochromic module provided in an embodiment of the present invention is shown;

[0026] Figure 3 A partial cross-sectional view of an electrochromic module according to another embodiment of the present invention is shown;

[0027] Figure 4 This figure shows a top view of an electrochromic module provided in an embodiment of the present invention;

[0028] Figure 5 This utility model is shown Figure 4 Sectional view at point A in the middle;

[0029] Figure 6 This utility model is shown Figure 4 Sectional view at point B.

[0030] Explanation of key component symbols:

[0031] 10 - Water and oxygen barrier layer; 20 - Optical adhesive layer; 30 - Thin film substrate layer; 40 - Functional layer; 50 - Protective adhesive layer;

[0032] 100 - First substrate; 200 - Electrochromic film; 210 - First substrate; 220 - First conductive layer; 230 - Color-changing material layer; 240 - Second conductive layer; 240a - Connecting part; 250 - Second substrate; 300 - Second substrate; 400 - Lead-out structure; 410 - Bonding part; 500 - Sealant layer; 600 - Electrical connector; 700 - First adhesive layer; 800 - Second adhesive layer; 810 - Groove. Detailed Implementation

[0033] The embodiments of this utility model 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 utility model, and should not be construed as limiting this utility model.

[0034] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0035] In this utility model, unless otherwise explicitly 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] Please see Figure 1 In existing technologies, electrochromic devices mainly include a thin-film substrate layer 30, a first conductive layer 220, a functional layer 40, a second conductive layer 240, a sealant layer 500, a lead-out structure 400, and a protective adhesive layer 50. The first conductive layer 220 is longer than the second conductive layer 240, and one end of it is flush with the second conductive layer 240. Electrochromic devices are widely used in automotive sunroofs, automotive side windows, rearview mirrors, curtain walls, consumer electronics housings, eyeglasses, and other fields. The functional layer 40 can change its transmittance in response to changes in voltage, including an electrochromic layer. The functional layer 40 is sensitive to water vapor and oxygen and needs to be protected by isolating water and oxygen. Therefore, a water and oxygen barrier layer 10 is bonded to one side of the thin film substrate layer 30 by an optical adhesive layer 20, and a sealant layer 500 is provided between the water and oxygen barrier layer 10 and the first conductive layer 220 on the opposite side of the thin film substrate layer 30. The sealant layer 500 can isolate water vapor and oxygen from entering the interior of the functional layer 40 from the end face of the functional layer 40.

[0039] Because the first conductive layer 220 needs to be bonded to the lead-out structure 400, it needs to extend beyond the sealant layer 500 for bonding. This results in the sealant layer 500 only having the water and oxygen barrier layer 10 bonded to one side within the bonding area, while the first conductive layer 220 is bonded to the other side, leaving the outer side of the first conductive layer 220 exposed outside the sealant layer 500. However, the sealing effect at the interface between the sealant layer 500 and the first conductive layer 220 is poor, leading to the formation of a channel between the sealant layer 500 and the first conductive layer 220 that allows water and oxygen to enter the functional layer 40, potentially damaging the structural stability of the functional layer 40 and the entire electrochromic device.

[0040] Please see Figure 2 This embodiment provides an electrochromic module designed to solve the above-mentioned technical problems. The electrochromic module includes a first substrate 100, an electrochromic film 200, and a second substrate 300 stacked sequentially, and an lead-out structure 400 is connected to the conductive layer of the electrochromic film 200.

[0041] The electrochromic film 200 is a functional layer 40 in the prior art, whose transmittance changes in response to changes in the voltage across its terminals. The electrochromic film 200 includes two conductive layers, one of which at least partially protrudes from the other conductive layer, and the protruding portion is connected to the lead-out structure 400. Specifically, the electrochromic film 200 includes a first substrate 210, a first conductive layer 220, a color-changing material layer 230, a second conductive layer 240, and a second substrate 250, stacked sequentially. The conductive layers of the electrochromic film 200 include the first conductive layer 220 and the second conductive layer 240. Either the first conductive layer 220 or the second conductive layer 240 can be connected to a lead-out structure 400, respectively, connecting to the positive and negative terminals of a power supply. Alternatively, both the first conductive layer 220 and the second conductive layer 240 can be connected to a lead-out structure 400 in the aforementioned manner; for ease of understanding, Figure 2 The diagram shows only one of the lead-out structures 400.

[0042] Understandably, in the embodiments of this application, "protrusion" means that in a cross-sectional view, one conductive layer protrudes from another conductive layer, or in a top view, one conductive layer is at least partially exposed above another conductive layer. Alternatively, on the plane where the electrochromic film 200 is located, the orthographic projections of the two conductive layers do not at least partially overlap. In some embodiments, both conductive layers have protrusions protruding from the other conductive layer, and there are two lead-out structures 400, with the first conductive layer 220 connected to one of the lead-out structures 400. In other embodiments, the second conductive layer 240 is connected to the other lead-out structure 400. In still other embodiments, there are at least two lead-out structures 400, with a portion of the lead-out structures 400 connected to the first conductive layer 220 and another portion connected to the second conductive layer 240. This embodiment does not limit this; the figures only show the connection between the second conductive layer 240 and one lead-out structure 400 as an illustration. The first conductive layer 220 and the second conductive layer 240 are both located within the space defined by the first substrate 100 and the second substrate 300, and the length of the second conductive layer 240 is greater than the length of the first conductive layer 220, that is, one end of the second conductive layer 240 protrudes from the first conductive layer 220.

[0043] One end of the lead-out structure 400 protrudes from the first substrate 210 and the second substrate 250, has a bonding portion 410 and a protruding end connected to the bonding portion 410, and is connected to the conductive layer through the bonding portion 410, and the bonding portion 410 is located within the space defined by the first substrate 100 and the second substrate 300.

[0044] Furthermore, a sealant layer 500 is provided between the first substrate 100 and the second substrate 300. The sealant layer 500 extends circumferentially along the electrochromic film 200 and covers the bonding portion 410 and the end face of the electrochromic film 200, that is, the sealant layer 500 completely covers the first conductive layer 220 and the second conductive layer 240. In this application, the end face mentioned refers to the circumferential side surface of the electrochromic film 200.

[0045] For example, the sealant layer 500 is cured by UV adhesive or thermosetting adhesive.

[0046] In the aforementioned electrochromic module, the sealant layer 500 extends circumferentially along the electrochromic film 200, covering both conductive layers of the electrochromic film 200 and the bonding portion 410 of the lead-out structure 400. This prevents the end faces of the conductive layers from being exposed outside the sealant layer 500, ensuring that the interface between the conductive layer and the sealant layer 500 is located inside the sealant layer 500. This blocks the channel between the conductive layer and the sealant layer 500, resulting in a better sealing effect and helping to maintain the structural stability of the entire electrochromic module.

[0047] For example, the materials of the first conductive layer 220 and the second conductive layer 240 include, but are not limited to, thin-film conductive materials such as ITO (Indium Tin Oxide), silver, and copper. The materials of the first conductive layer 220 and the second conductive layer 240 can be the same or different, and this embodiment does not limit this.

[0048] Furthermore, the first substrate 210 and the second substrate 250 can be made of materials such as PET, PC, and glass. The materials of the first substrate 210 and the second substrate 250 can be the same or different, and this embodiment does not limit this.

[0049] Taking the connection between the second conductive layer 240 and the lead-out structure 400 as an example, an electrical connector 600 is provided on the side of the second conductive layer 240 away from the second substrate 250, and is connected to the bonding part 410 through the electrical connector 600. The material of the electrical connector 600 can be ACF (Anisotropic Conductive Film) or ACP (Anisotropic Conductive Paste).

[0050] In some embodiments of this application, the lead-out structure 400 can be an FPC (flexible printed circuit board) or a conductive lead.

[0051] Furthermore, the electrochromic module also includes a first adhesive layer 700 and a second adhesive layer 800.

[0052] On the one hand, the electrochromic film 200 is connected to the first substrate 100 through the first adhesive layer 700, specifically the first substrate 210 is connected to the first substrate 100 through the first adhesive layer 700.

[0053] On the other hand, the electrochromic film 200 is connected to the second substrate 300 through the second adhesive layer 800, specifically the second substrate 250 is connected to the second substrate 300 through the second adhesive layer 800.

[0054] Furthermore, the sealant layer 500 extends circumferentially along the first adhesive layer 700 and the second adhesive layer 800, and completely covers the end faces of the first adhesive layer 700 and the second adhesive layer 800, enclosing the first adhesive layer 700 and the second adhesive layer 800 inside. This prevents the first adhesive layer 700 and the second adhesive layer 800 from extending outside the sealant layer 500, blocking the entry channels of water and oxygen present in the first adhesive layer 700 and the second adhesive layer 800, improving the sealing performance of the entire device, and also helping to maintain the structural stability of the entire electrochromic module.

[0055] For example, both the first adhesive layer 700 and the second adhesive layer 800 are made of optical adhesives, including but not limited to OCA (Optically Clear Adhesive) and OCR (Optical Clear Resin). The types of optical adhesives used in the first adhesive layer 700 and the second adhesive layer 800 can be the same or different, and this embodiment does not limit this.

[0056] In some embodiments, the first conductive layer 220 and / or the second conductive layer 240 have a connecting portion 240a. The connecting portion 240a can be understood as the portion of the conductive layer corresponding to the length difference between the two conductive layers, or as a portion of the two conductive layers protruding from each other. It protrudes from the color-changing material layer 230 along the direction from the inside to the outside of the electrochromic film 200, and the connecting portion 240a is connected to the bonding portion 410. The connecting portion 240a protruding from the color-changing material layer 230 facilitates the bonding contact between the lead-out structure 400 and the two conductive layers. Accordingly, the sealant layer 500 covers the bonding portion 410 and the connecting portion 240a.

[0057] In this embodiment, taking the connection between the second conductive layer 240 and the bonding portion 410 as an example, the edge portion of the second conductive layer 240 protrudes from the color-changing material layer 230 and the first conductive layer 220 along the direction from the inside to the outside of the electrochromic film 200, forming a connecting portion 240a for connection with the bonding portion 410. An electrical connector 600 is provided on the connecting portion 240a, thereby connecting it to the bonding portion 410 through the electrical connector 600.

[0058] At this time, the sealant layer 500 covers the surface and end face of the bonding part 410, and the sealant layer 500 also covers the connecting part 240a.

[0059] Understandably, the edge portion of the second conductive layer 240 protrudes from the color-changing material layer 230 and the first conductive layer 220 along the electrochromic film 200 from the inside out, thereby forming a connection portion 240a. The edge portion of the second substrate 250 also protrudes from the electrochromic film 200 from the inside out. The protruding second substrate 250 supports the connection portion 240a and provides a space for the sealant layer 500. A second adhesive layer 800 is also provided between this portion of the second substrate 250 and the second substrate 300.

[0060] Please see Figure 3 Furthermore, since the connecting portion 240a protrudes from the color-changing material layer 230 along the electrochromic film 200 from the inside out, the width of the sealant layer 500 around the connecting portion 240a along the electrochromic film 200 from the inside out is smaller than that of the sealant layer 500 in other areas.

[0061] Meanwhile, considering that the optical adhesive constituting the first adhesive layer 700 and the second adhesive layer 800 is relatively thin and easily absorbs and allows moisture and oxygen to pass through, the edges of the first adhesive layer 700 and / or the second adhesive layer 800 are recessed relative to the electrochromic film 200, forming a groove 810 with the electrochromic film 200 and the two substrates. The groove 810 is correspondingly provided with the connecting portion 240a; in other words, the groove 810 communicates with the outside. When sealant is injected between the first substrate and the second substrate, the sealant layer 500 fills the groove 810, preventing moisture from entering the interior of the electrochromic film 200 from the edges of the first adhesive layer 700 and / or the second adhesive layer 800. That is, the sealant layer 500 covers the second conductive layer 240 and the second substrate 250.

[0062] In this embodiment, taking the connection between the second conductive layer 240 and the bonding portion 410 as an example, a groove 810 is provided at the edge of the second adhesive layer 800 corresponding to the connecting portion 240a, and the sealant layer 500 fills the groove 810, thereby increasing the contact area between the sealant layer 500 and the second substrate 300. This is equivalent to increasing the sealing channel that prevents water and oxygen from entering the electrochromic film 200. On the other hand, it improves the adhesion performance between the sealant layer 500 and the second substrate 300, thereby improving the sealing performance of the entire device.

[0063] In other embodiments, the lengths of the two adhesive layers may be the same as the lengths of the first substrate 100 and the second substrate 300, that is, the sealant layer is directly filled between the two adhesive layers.

[0064] It is worth noting that in other embodiments of this application, the outer peripheral edge of the first adhesive layer 700 is also provided with a groove 810, and its implementation principle is the same as described above, so it will not be described in detail here.

[0065] Optionally, the groove 810 extends to a depth H along the electrochromic film 200 from the outside to the inside, satisfying H≥1mm, to ensure sufficient sealing at the interface between the sealant layer 500 and the second substrate 300. Preferably, H≥1mm, and H010mm; while ensuring sufficient sealing, it avoids excessive depth, which would prevent the sealant from penetrating into the groove 810 and affecting the seal.

[0066] Understandably, when the aforementioned electrochromic module is applied to end products such as curtain walls, automotive sunroofs, automotive side windows, and automotive windshields, the greater the depth of the groove 810, that is, the longer the second substrate 250 and the second conductive layer 240 extend beyond the second adhesive layer 800, the better the sealing reliability. In other embodiments of this application, a masking layer is provided at the edge of the substrate, and black ink is provided at the edge of the end product to form a black edge as a masking layer, which can cover the sealant layer 500 in the groove 810 without affecting the aesthetics of the product.

[0067] When the aforementioned electrochromic module is applied to end products such as rearview mirrors, electronic product housings, eyeglasses, and electronic product display panels, the depth of the groove 810 should not exceed 5mm to avoid excessive depth requiring a wider shielding layer, which would affect the aesthetics of the product.

[0068] Please see Figure 5 In some embodiments, for the lead-out structure 400 connected to the first conductive layer 220, the thickness of its bonding portion 410 is A, and the sum of the thicknesses of the color-changing material layer 230, the second conductive layer 240, the second substrate 250, and the second adhesive layer 800 is B1, satisfying A < B1.

[0069] At this time, the bonding portion 410 connected to the first conductive layer 220 can be smoothly inserted between the first conductive layer 220 and the second substrate 300. The smaller the thickness of the bonding portion 410, that is, when the bonding portion 410 is bonded to the first conductive layer 220, the bonding portion 410 does not exceed the electrochromic film. With this setting, the sealant layer 500 can cover the entire bonding portion 410, which is beneficial to improving the sealing performance of the sealant layer 500 at the lead-out structure 400.

[0070] Preferably, A < B1-30μm, meaning that the thickness of the bonding portion 410 is smaller than the sum of the thicknesses of the color-changing material layer 230, the second conductive layer 240, and the second substrate 250. The thickness difference between the two can be used to set the electrical connector 600. The thickness of the electrical connector 600 is just about 30μm. When the bonding portion 410 is set on the electrical connector 600, the sealant layer 500 just covers the bonding portion 410, thereby improving the sealing performance of the sealant layer 500.

[0071] Similarly, in other embodiments of this application, for the lead-out structure 400 connected to the second conductive layer 240, the thickness of its bonding portion 410 is A, and the sum of the thicknesses of the color-changing material layer 230, the first conductive layer 220, the first substrate 210, and the first adhesive layer 700 is B2, satisfying A < B2, so that the bonding portion 410 connected to the second conductive layer 240 can be smoothly inserted between the second conductive layer 240 and the first substrate 100. Preferably, A < B2 - 30 μm is satisfied, so that an electrical connector 600 can be provided on the connecting portion 240a. The reasons for this setting and the achieved effect are the same as described above, and will not be repeated here.

[0072] Please see Figure 4 In some embodiments, the width of the lead-out structure 400 is D, and the side width of the electrochromic module where the lead-out structure 400 is located is W, satisfying 0.5mm < D < W / 3.

[0073] The width of the lead-out structure 400 affects the contact area between the sealant layer 500 and the lead-out structure 400. The smaller the size of the lead-out structure 400, the smaller the contact area between the sealant layer 500 and the lead-out structure 400, and the less likely the sealant layer 500 is to fall off from the lead-out structure 400. This is more conducive to the sealing performance of the sealant layer 500 at the lead-out structure 400. Therefore, the width of the lead-out structure 400 is set to be less than one-third of the side width of the electrochromic module. In order to facilitate the arrangement of electrical conductivity channels, the width of the lead-out structure 400 is set to be greater than 0.5 mm.

[0074] Furthermore, a sealant affinity layer is provided on the surface of the lead-out structure 400, which makes the lead-out structure 400 and the sealant layer 500 more compatible, improves the contact between the lead-out structure 400 and the sealant layer 500, prevents the sealant layer 500 from falling off the lead-out structure 400, and enhances the sealing performance of the sealant layer 500 at the lead-out structure 400.

[0075] For example, the materials of the sealant affinity layer include, but are not limited to, PI (Polyimide) and PET (Polyester).

[0076] In some embodiments, the first substrate 100 and / or the second substrate 300 employ a water-oxygen barrier layer.

[0077] The water and oxygen barrier layer can better block water vapor and oxygen, and together with the sealant layer 500, it can effectively seal the electrochromic film 200.

[0078] In some embodiments, the first substrate 100 employs a water-oxygen barrier layer. In other embodiments, the second substrate 300 employs a water-oxygen barrier layer. In still other embodiments, both the first substrate 100 and the second substrate 300 employ water-oxygen barrier layers. This embodiment does not limit the scope of the embodiments.

[0079] For example, the materials of the water and oxygen barrier layer include, but are not limited to, water and oxygen barrier film materials, dense oxide thin layers disposed on the PET surface, glass plates, etc. Furthermore, when both the first substrate 100 and the second substrate 300 employ water and oxygen barrier layers, the materials of the first substrate 100 and the second substrate 300 may be the same or different; this embodiment does not limit this.

[0080] Specifically, the water and oxygen barrier layer includes a substrate layer and a barrier coating layer stacked together, with the barrier coating layer disposed on at least one side of the substrate layer.

[0081] For example, the material of the barrier coating can be silicon dioxide and its modified forms.

[0082] In some embodiments, a barrier coating is disposed on one side of the substrate layer.

[0083] In other embodiments, barrier coatings are disposed in pairs on both sides of the substrate layer.

[0084] In some other embodiments, a barrier coating is disposed on one side of the substrate layer, and an antireflective layer or a hardening layer is disposed on the other side of the substrate layer.

[0085] Understandably, when an anti-reflective layer is placed on the other side of the substrate, the reflection of light by the water and oxygen barrier layer can be reduced. When a hardening layer is placed on the other side of the substrate, the hardness of the entire water and oxygen barrier layer can be enhanced.

[0086] Please refer to the following: Figure 2 and Figure 6 The electrochromic module includes a first substrate 100, a first adhesive layer 700, a first substrate 210, a first conductive layer 220, a color-changing material layer 230, a second conductive layer 240, a second substrate 250, a second adhesive layer 800, and a second substrate 300 stacked sequentially. A sealant layer 500 is provided between the first substrate 100 and the second substrate 300, and the sealant layer 500 covers the end faces of the first adhesive layer 700, the first substrate 210, the first conductive layer 220, the color-changing material layer 230, the second conductive layer 240, the second substrate 250, and the second adhesive layer 800.

[0087] Taking the connection between the second conductive layer 240 and the lead-out structure 400 as an example, a portion of the second conductive layer 240 protrudes from the color-changing material layer 230, the first conductive layer 220, and the first substrate 210 along the direction from the inside to the outside of the electrochromic film 200, thereby forming a connection portion 240a. The connection portion 240a is further connected to the bonding portion 410 of the lead-out structure 400. The lead-out structure 400 extends through the sealant layer 500, and the exposed portion of the lead-out structure 400 is used for bonding.

[0088] Please see again. Figure 6 In the non-bonding area, that is, in the position where the lead-out structure 400 is not set, the sealant layer 500 is located between the first substrate 100 and the second substrate 300, sealing the end face of the entire electrochromic film 200 and improving the sealing effect of the entire device.

[0089] Therefore, the aforementioned electrochromic module first encapsulates the lead-out structure 400 within the sealant layer 500 before extending it out of the sealant layer 500. This ensures that both sides of the sealant layer 500 are bonded with water and oxygen barrier layers, preventing the conductive layer of the electrochromic film 200 from being exposed outside the sealant layer 500. This ensures that the interface between the conductive layer of the electrochromic film 200 and the sealant layer 500 is located inside the sealant layer 500, blocking water and oxygen from entering the electrochromic film 200 from the conductive layer and sealant layer 500. Simultaneously, it prevents water and oxygen from entering the electrochromic film 200 through the second adhesive layer 800, improving the overall sealing performance of the device and contributing to the structural stability of the entire electrochromic module. Furthermore, since the sealant layer 500 covers the bonding portion 410, it protects the lead-out structure 400, eliminating the need for protective adhesive and curing processes for the lead-out structure, reducing steps and improving efficiency.

[0090] This embodiment also provides a terminal product, including the above-mentioned electrochromic module.

[0091] The end products include any one of the following: rearview mirrors, curtain walls, car sunroofs, car side windows, car windshields, electronic product housings, eyeglasses, and electronic product display panels. Because the end products utilize the aforementioned electrochromic module, they possess all the beneficial effects of the electrochromic module.

[0092] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0093] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0094] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An electrochromic module, characterized in that, The material includes a first substrate, an electrochromic film, and a second substrate stacked sequentially. The electrochromic film includes two conductive layers, one of which at least partially protrudes from the other conductive layer, and the protruding portion is connected to an outgoing structure. The lead-out structure has a bonding portion connected to the conductive layer, and the bonding portion and the two conductive layers are located within the space defined by the first substrate and the second substrate; A sealant layer is provided between the first substrate and the second substrate, and the sealant layer covers the bonding portion and the end face of the electrochromic film.

2. The electrochromic module according to claim 1, characterized in that, The electrochromic module further includes a first adhesive layer and a second adhesive layer. The electrochromic film is connected to the first substrate through the first adhesive layer and to the second substrate through the second adhesive layer. The sealant layer also covers the first adhesive layer and the second adhesive layer.

3. The electrochromic module according to claim 2, characterized in that, The electrochromic film includes a first substrate, a first conductive layer, a color-changing material layer, a second conductive layer, and a second substrate stacked sequentially; the length of the second conductive layer is greater than that of the first conductive layer, and the portion of the second conductive layer extending out of the first conductive layer protrudes from the color-changing material layer and is connected to the bonding portion, and is covered by the sealant layer.

4. The electrochromic module according to claim 3, characterized in that, The end of the electrochromic film protrudes beyond the first adhesive layer and / or the second adhesive layer, and the sealant layer also covers the end face of the first adhesive layer and / or the end face of the second adhesive layer.

5. The electrochromic module according to claim 3, characterized in that, The thickness of the bonding portion is A, the sum of the thicknesses of the color-changing material layer, the second conductive layer, the second substrate and the second adhesive layer is B1, the sum of the thicknesses of the color-changing material layer, the first conductive layer, the first substrate and the first adhesive layer is B2, and A < B1 and / or A < B2.

6. The electrochromic module according to any one of claims 1-5, characterized in that, The first substrate and / or the second substrate employ a water-oxygen barrier layer; The water and oxygen barrier layer includes a base layer and a barrier coating layer stacked together, wherein the barrier coating layer is disposed on at least one side of the base layer.

7. The electrochromic module according to claim 6, characterized in that, The barrier coating is disposed on one side of the substrate layer, and an anti-reflection layer or a hardening layer is disposed on the other side of the substrate layer.

8. The electrochromic module according to any one of claims 1-5, characterized in that, The surface of the lead-out structure is provided with a sealant affinity layer.

9. The electrochromic module according to any one of claims 1-5, characterized in that, The width of the lead-out structure is D, and the side width of the electrochromic module where the lead-out structure is located is W, where 0.5mm < D < W / 3.

10. A terminal product, characterized in that, The electrochromic module includes any one of claims 1-9, wherein the terminal product includes any one of a rearview mirror, curtain wall, car sunroof, car side window, car windshield, electronic product housing, glasses, and electronic product display panel.

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