Electrochromic lens and electrochromic eyewear

Abstract

This application provides an electrochromic lens and electrochromic glasses. The electrochromic lens includes: a film assembly comprising a stacked electrochromic film and a first heat-bending substrate; and a resin layer covering at least a portion of the film assembly. The electrochromic film has a curved surface adjacent to the first heat-bending substrate, and the curved surface is fixed to the first heat-bending substrate. The electrochromic lens and electrochromic glasses provided in this application, by combining the electrochromic film with the resin layer, can produce electrochromic lenses with a preset prescription. Since existing electrochromic films are difficult to bond to spherical or curved surfaces, this application adds a first heat-bending substrate to fix the electrochromic film, ensuring that the electrochromic film maintains a preset curvature, achieving better bonding with curved lenses, reducing or avoiding wrinkles caused by poor bonding, and effectively ensuring the light transmittance of the electrochromic lens.

Description

Technical Field

[0001] This application belongs to the technical field of electrochromic technology, and particularly relates to an electrochromic lens and electrochromic glasses. Background Technology

[0002] Electrochromic devices are intelligent devices that adjust optical properties (such as color and transparency) by applying an external voltage. They are typically formed by sandwiching an electrochromic film or material layer between two pieces of glass or other transparent substrates. They are used in fields such as automotive rearview mirrors, sunroofs, side windows, curtain walls, and smart glasses.

[0003] When flexible electrochromic films are used to manufacture electrochromic devices with curved surfaces, such as canopies or glasses, existing flexible electrochromic films are limited by the flexibility of the substrate and the fact that the conductive layer will crack after the substrate is bent to a large extent. They cannot be well bonded to the curved surface and wrinkles are easily generated during bonding, which affects the transmittance of the electrochromic device. Utility Model Content

[0004] In view of this, embodiments of this application provide an electrochromic lens and electrochromic glasses to solve the technical problem that existing electrochromic lenses are prone to wrinkling.

[0005] In a first aspect, embodiments of this application provide an electrochromic lens, comprising:

[0006] A diaphragm assembly includes an electrochromic diaphragm and a first hot-bending substrate stacked together.

[0007] A resin layer covering at least a portion of the membrane assembly;

[0008] The electrochromic film has a curved surface close to the first hot-bending substrate, and the curved surface is fixed to the first hot-bending substrate.

[0009] By combining an electrochromic film with a resin layer, electrochromic lenses with a preset prescription can be produced. Since existing electrochromic films are difficult to bond to spherical or curved surfaces, in this application, the surface of the electrochromic film near the first hot-bending substrate is curved. By adding a first hot-bending substrate to fix the curved surface of the electrochromic film, the preset curvature of the electrochromic film is ensured, achieving better bonding with curved lenses. This reduces or avoids wrinkles caused by poor bonding of the electrochromic film, effectively ensuring the light transmittance of the electrochromic lens.

[0010] In some embodiments, along the thickness direction of the film assembly, the projection of the electrochromic film lies within the projection of the first hot-bending substrate. In other words, the size of the first hot-bending substrate is larger than the size of the electrochromic film. This facilitates the support and fixation of the electrochromic film by the first hot-bending substrate, ensuring that every part of the electrochromic film is adhered and fixed by the first hot-bending substrate, and minimizing wrinkles caused by complete adhesion of the electrochromic film.

[0011] In some embodiments, the base curvature of the curved surface is 0.5C to 4C. This curved surface is the surface of the electrochromic film near the first hot-bending substrate, and the base curvature is a core parameter for adapting the electrochromic film to different curved surface applications. The range of 0.5C to 4C allows the electrochromic film to better fit the curved surface, thereby avoiding bubbles, wrinkles, or peeling, and enables the film to be widely used in diverse scenarios from flat surfaces to high curvatures, meeting the application requirements of electrochromic glasses with a wide range of prescriptions.

[0012] In some embodiments, the resin layer forms an accommodating space and an opening connecting the accommodating space to an external space. A portion of the diaphragm assembly is housed within the accommodating space, while another portion of the diaphragm assembly passes through the opening and extends outside the accommodating space. In practical applications, the diaphragm assembly is first placed in a mold, and then resin is poured into the mold to form a resin layer. To facilitate positioning and fixing the diaphragm assembly in the mold, a portion of the diaphragm assembly protrudes outside the mold, ultimately resulting in a portion of the diaphragm assembly passing through the opening and extending outside the accommodating space.

[0013] In some embodiments, the electrochromic film includes a first base layer, a first conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer, a second conductive layer, and a second base layer stacked sequentially, with the first hot-bending substrate disposed on the side of the first base layer away from the first conductive layer. Thus, placing the hot-bending substrate outside the first base layer allows for the curvature of the electrochromic film to be fixed by bending the first hot-bending substrate without affecting the conductive and functional layers, thereby adapting to curved lenses. Furthermore, it protects the functional layers. Hot bending requires high temperatures to soften materials; if the hot-bending substrate directly contacts the conductive or electrochromic layer, the high temperature may cause electrode oxidation, electrolyte decomposition, or functional layer interface failure. Placing it outside the base layer isolates the core functional layers from thermal damage during the hot bending process. In addition, the base layer and the hot-bending substrate can be independently processed (e.g., hot-bent to a curvature of 0.5C to 4C) before being bonded to other functional layers, avoiding delamination or stress concentration caused by hot bending after overall stacking.

[0014] In some embodiments, the hot bending temperature of the first hot bending substrate is lower than the hot bending temperature of the first base layer, and the hot bending temperature of the first hot bending substrate is lower than the hot bending temperature of the second base layer. Thus, the lower hot bending temperature of the first hot bending substrate means that during the hot bending process, the first hot bending substrate can be heated and bent independently without simultaneously heating other base layers. In this case, the first and second base layers remain rigid, preventing damage to functional layers (conductive layers, electrochromic layers, etc.) due to high temperatures caused by simultaneous heating.

[0015] In some embodiments, the electrochromic film further includes a first lead-out electrode and a second lead-out electrode, one end of the first lead-out electrode being electrically connected to the first conductive layer, and the other end of the first lead-out electrode penetrating the resin layer and extending beyond the resin layer;

[0016] One end of the second lead electrode is electrically connected to the second conductive layer, and the other end of the second lead electrode penetrates the resin layer and extends beyond the resin layer. In application, the color-changing function of the electrochromic film relies on the electric field between the first and second conductive layers to drive ion migration. The resin layer encapsulates the electrode penetration area, both fixing the electrode position to prevent displacement and providing insulation protection to avoid leakage or corrosion caused by contact between the electrode and surrounding materials; the resin filling of the electrode through the pores can block environmental factors such as water vapor and oxygen from penetrating the interior of the film, protecting the functional layer from water vapor or chemical corrosion and extending the device life.

[0017] In some embodiments, the membrane assembly further includes a second hot-bending substrate, a first barrier film, and a second barrier film, wherein the first barrier film is located between the first hot-bending substrate and a first substrate layer, and the second barrier film is located between the second hot-bending substrate and the second substrate layer, wherein:

[0018] Along the thickness direction of the membrane assembly, the projection of the electrochromic film lies within the projection of the first barrier film and the projection of the second barrier film. The projection of the first barrier film lies within the projection of the first hot-bending substrate, and the projection of the second barrier film lies within the second hot-bending substrate. The presence of the barrier film can block the penetration of water vapor and oxygen, preventing the internal functional layers (such as the electrolyte layer and the electrochromic layer) from becoming damp, oxidizing, or decomposing. In addition, during the hot-bending process of the hot-bending substrate, the barrier film can also act as a heat insulation layer to reduce heat transfer to the base layer, preventing the base layer from deforming due to local overheating or the performance degradation of the functional layers. Furthermore, by setting the size of the barrier film to be larger than the size of the electrochromic film, and the size of the hot-bending substrate to be larger than the size of the barrier film, it can be ensured that the barrier film provides tight protection for the electrochromic film. After the hot-bending process, the hot-bending substrate can fix the bending of the barrier film and the electrochromic film, further enhancing the protective effect of the barrier film on the electrochromic film.

[0019] In some embodiments, at least a portion of the first barrier film extends outward relative to the edge of the electrochromic film to form a first extension end, and at least a portion of the second barrier film extends outward relative to the edge of the electrochromic film to form a second extension end.

[0020] The diaphragm assembly further includes a first sealant, which is filled between the first extension end and the second extension end, and is disposed around the periphery of the electrochromic diaphragm.

[0021] In application, the portion of the first conductive layer extending outward from the edge of the electrochromic film relative to the film's edge is connected to the first lead electrode, and the portion of the second conductive layer extending outward relative to the electrochromic layer is connected to the second lead electrode. The first and second extension ends correspond to the outward extension portions of the first and second conductive layers, respectively, and are specifically designed for barrier protection. Sealant is used to seal the edges of the electrochromic film, ensuring that water and oxygen cannot enter the interior of the film. Additionally, the sealant also serves a mechanical fixing function, preventing separation between the layers. This is particularly important in curved surface applications where the bend may cause stress, and the sealant helps alleviate this stress.

[0022] In some embodiments, the electrochromic film includes a first groove and a second groove, the first groove extending from the first substrate layer to the surface of the second conductive layer, the second groove extending from the second substrate layer to the surface of the first conductive layer, and the bottom of the first groove and the bottom of the second groove being used for electrical connection with the first lead electrode and the second lead electrode, respectively.

[0023] The diaphragm assembly further includes a second sealant and a third sealant. The second sealant fills the space between the bottom of the first groove and the first barrier membrane, and the third sealant fills the space between the bottom of the second groove and the second barrier membrane. By using the second sealant to seal the connection between the first lead electrode and the second conductive layer, and by using the third sealant to seal the connection between the second lead electrode and the first conductive layer, moisture and oxygen can be prevented from entering the interior of the electrochromic diaphragm, thereby extending the diaphragm's service life.

[0024] In some embodiments, the second sealant is located inside the first lead-out electrode, and the third sealant is located inside the second lead-out electrode. In other words, the second sealant is closer to the inner side of the electrochromic film relative to the first lead-out electrode, and the third sealant is closer to the inner side of the electrochromic film relative to the second lead-out electrode. This provides better sealing at the connection between the lead-out electrode and the conductive layer, preventing moisture and oxygen from entering the interior of the electrochromic film, avoiding corrosion of the functional layer inside the electrochromic film, and extending the film's service life.

[0025] Secondly, embodiments of this application provide electrochromic glasses, including a frame and an electrochromic lens as described in the first aspect, wherein the electrochromic lens is fixed to the frame. The electrochromic glasses provided in this application, because they include the electrochromic lens of the first aspect, possess all the beneficial effects described in the first aspect. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the electrochromic lens provided in the embodiments of this application. Figure 1 ;

[0028] Figures 2 to 5 This is a schematic diagram showing the positional relationship between the diaphragm assembly and the resin layer in an electrochromic lens provided in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of the electrochromic film and the first hot-bending substrate in the electrochromic lens provided in this application embodiment. Figure 1 ;

[0030] Figure 7 This is a schematic diagram of the structure of the electrochromic film and the first hot-bending substrate in the electrochromic lens provided in this application embodiment. Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the structure of the electrochromic film before heat bending in the electrochromic lens provided in this application embodiment. Figure 1 ;

[0032] Figure 9 This is a schematic diagram of the structure of the electrochromic film before heat bending in the electrochromic lens provided in this application embodiment. Figure 2 ;

[0033] Figure 10 This is a schematic diagram of the structure of the diaphragm assembly before heat bending in the electrochromic lens provided in this application embodiment. Figure 1 ;

[0034] Figure 11 This is a schematic diagram of the structure of the diaphragm assembly before heat bending in the electrochromic lens provided in this application embodiment. Figure 2 ;

[0035] Figure 12 This is a schematic diagram of the structure of the electrochromic film before heat bending in the electrochromic lens provided in this application embodiment. Figure 3 .

[0036] The attached icon numbers are as follows:

[0037] 10. Membrane assembly; 100. First groove; 101. Second groove; 11. Electrochromic membrane; 111. First substrate layer; 112. First conductive layer; 113. Electrochromic layer; 114. Electrolyte layer; 115. Ion storage layer; 116. Second conductive layer; 117. Second substrate layer; 118. First lead-out electrode; 119. Second lead-out electrode; 12. First hot-bending substrate; 13. Second hot-bending substrate; 14. First barrier film; 141. First extension end; 15. Second barrier film; 151. Second extension end; 16. First sealant; 17. Second sealant; 18. Third sealant;

[0038] 20. Resin layer. Detailed Implementation

[0039] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that the embodiments of this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the embodiments of this application with unnecessary detail.

[0040] It should also be understood that the term "and / or" as used in the specification of embodiments of this application and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0041] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0042] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0043] Furthermore, in the description of the embodiments and the appended claims of this application, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0044] In the description of embodiments in this application, references to "some embodiments" or "some embodiments" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in some embodiments," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiments, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" refers to two or more.

[0045] The first aspect of this application provides an electrochromic lens, such as... Figure 1 As shown, the electrochromic lens includes a film assembly 10 and a resin layer 20;

[0046] The diaphragm assembly 10 includes an electrochromic diaphragm 11 and a first hot-bending substrate 12 stacked together.

[0047] Resin layer 20 covers at least a portion of membrane assembly 10;

[0048] The first hot-bending substrate 12 has a curved surface close to the electrochromic film 11. The curved surface of the first hot-bending substrate 12 fixes the curved surface of the electrochromic film 11, so that the electrochromic film 11 and the first hot-bending substrate 12 are bonded to each other and the electrochromic film 11 does not produce wrinkles.

[0049] By bonding the electrochromic film 11 to the resin layer 20, electrochromic lenses with a preset prescription can be produced. Since existing electrochromic films 11 are difficult to bond with curved surfaces, this application adds a first hot-bending substrate 12 with a curved surface to fix the curved surface of the electrochromic film 11, ensuring that the electrochromic film 11 maintains a preset curvature, achieving better bonding with the curved lens, reducing or avoiding wrinkles caused by poor bonding of the electrochromic film 11, and effectively ensuring the light transmittance of the electrochromic lens.

[0050] It should be noted that when the resin layer 20 covers at least a portion of the film assembly 10, it means that the resin layer 20 covers at least a portion of the electrochromic film 11. In other words, there are two possibilities: one is that the resin layer 20 completely covers the electrochromic film 11; the other is that the resin layer 20 covers a portion of the electrochromic film 11, meaning that a portion of the electrochromic film 11 protrudes beyond the resin layer 20. In one embodiment, the resin layer 20 completely covers the film assembly 10, that is, the electrochromic film 11 and the first hot-bending substrate 12 are completely covered within the resin layer 20. In another embodiment, as... Figures 2 to 5 The diagram shows a schematic representation of the electrochromic film 11 covered by the resin layer 20.

[0051] In application, the surface of the electrochromic film 11 close to the first hot-bending substrate 12 is the surface on which the electrochromic film 11 and the first hot-bending substrate 12 are bonded.

[0052] In some embodiments, such as Figure 1 As shown, along the thickness direction of the film assembly 10, the projection of the electrochromic film 11 lies within the projection of the first hot-bending substrate 12. In other words, the size of the first hot-bending substrate 12 is greater than or equal to the size of the electrochromic film 11. This facilitates the support and fixation of the electrochromic film 11 by the first hot-bending substrate 12, ensuring that every part of the electrochromic film 11 is adhered and fixed by the first hot-bending substrate 12, and minimizing the risk of wrinkles in the electrochromic film 11 due to complete adhesion.

[0053] It should be noted that the thickness direction of the diaphragm assembly 10 is the same as the thickness direction of the electrochromic lens, i.e., the Z direction in the figure. The above description of the direction is for the convenience of understanding the technical solution of this application and should not be construed as limiting the scope of protection of this application.

[0054] In some embodiments, the base curvature of the curved surface is 0.5C to 4C. This curved surface is the surface of the electrochromic film 11 near the first hot-bending substrate 12. The base curvature is a core parameter for adapting the electrochromic film 11 to different curved surface applications. The range of 0.5C to 4C allows the electrochromic film 11 to better fit the curved surface, thereby avoiding bubbles, wrinkles, or peeling, and enables the film to be widely used in diverse scenarios from flat surfaces to high curvatures, meeting the application requirements of electrochromic glasses with a wide range of prescriptions. It is understood that the first hot-bending substrate 12 and the electrochromic film 11 have the same base curvature.

[0055] It should be noted that the base curvature of the electrochromic film 11 refers to the curvature of the substrate material (such as glass or polymer substrate) on which the film is attached, usually expressed in diopter (C, i.e., 1 / m). Specifically, the first substrate layer 111 of the electrochromic film 11 is fixed to the first hot-bending substrate 12, and the base curvature of the first substrate layer 111 is 0.5C to 4C. Here, "0.5C to 4C" means that the substrate curvature ranges from 0.5 to 4 diopters, corresponding to a radius of curvature range of 0.25 meters to 2 meters. The base curvature defines the degree of curvature of the substrate and directly affects the adhesion, optical performance, and mechanical stability of the electrochromic film 11.

[0056] In some embodiments, such as Figures 2 to 5 As shown, the resin layer 20 has a receiving space and an opening connecting the receiving space to the external space. Part of the membrane assembly 10 is received within the receiving space, while another part of the membrane assembly 10 passes through the opening and extends outside the receiving space. That is, part of the electrochromic membrane 11 protrudes outside the resin layer 20. This arrangement is to facilitate the fixation of the electrochromic membrane 11 when the resin is poured to form the resin layer 20.

[0057] In practical applications, the diaphragm assembly 10 is first placed in a mold, and then resin is poured into the mold to form a resin layer 20. To facilitate the positioning and fixing of the diaphragm assembly 10 in the mold, a portion of the diaphragm assembly 10 protrudes outside the mold, ultimately forming an opening in the diaphragm assembly 10 that extends beyond the receiving space. The aforementioned diaphragm assembly 10 includes an electrochromic film 11 and a first hot-bending substrate 12. In a preferred embodiment, only a portion of the electrochromic film 11 has an opening that extends beyond the receiving space. When applied to electrochromic glasses, the portion of the electrochromic film 11 extending beyond the receiving space is either cut off or hidden inside the frame.

[0058] In some embodiments, such as Figure 6 and Figure 7 As shown, the electrochromic film 11 includes a first base layer 111, a first conductive layer 112, an electrochromic layer 113, an electrolyte layer 114, an ion storage layer 115, a second conductive layer 116, and a second base layer 117, which are stacked sequentially.

[0059] The first hot-bending substrate 12 is disposed on the side of the first base layer 111 away from the first conductive layer 112. Thus, by placing the hot-bending substrate outside the first base layer 111, the curved surface of the electrochromic film 11 can be fixed by bending the first hot-bending substrate 12 without affecting the conductive layer and functional layer, thereby adapting to curved lenses. Furthermore, it protects the functional layer. Hot bending of the first hot-bending substrate 12 requires high-temperature softening of the material. If the first hot-bending substrate 12 directly contacts the conductive layer or the electrochromic layer 113, the high temperature may cause electrode oxidation, electrolyte decomposition, or functional layer interface failure. Placing it outside the first base layer 111 isolates the core functional layer from thermal damage caused by the hot bending process. In addition, the first base layer 111 and the first hot-bending substrate 12 can be independently processed and formed before being bonded to other functional layers, avoiding delamination or stress concentration caused by hot bending after overall lamination. Figure 6 As shown, the size of the first hot-bent substrate 12 is larger than the size of the electrochromic film 11. Figure 7 As shown, the size of the first hot-bent substrate 12 is equal to the size of the electrochromic film 11.

[0060] It is worth noting that, Figure 6 and Figure 7 The text is only intended to illustrate the positional relationship between the various layers of the electrochromic film 11 and the first hot-bending substrate 12. Figure 6 and Figure 7 The electrochromic lens has the shape before hot bending. In the actual product, the electrochromic film 11 and the first hot bending substrate 12 will exhibit a certain curvature after hot bending, such as... Figure 1 As shown.

[0061] In the application, both the first substrate layer 111 and the second substrate layer 117 are transparent substrates. The "transparent substrate" is an optically transparent material, which can be a flexible substrate material, such as polyethylene terephthalate (PET), polycarbonate (PC), polyimide (PI), cyclic olefin copolymers, or cellulose triacetate.

[0062] Both the first conductive layer 112 and the second conductive layer 116 are transparent conductive layers. The material of the "transparent conductive layer" can be indium-tin oxide (ITO), aluminum zinc oxide (AZO), fluorine-doped tin oxide (FTO), silver nanowires, graphene, carbon nanotubes, metal meshes, or silver nanoparticles, etc.

[0063] The electrochromic layer 113 includes an electrochromic material, and the ion storage layer 115 includes an ion storage material. The ion storage material stores ions, and the migration of ions from the ion storage material into or out of the electrochromic layer 113 can change the transmittance of the electrochromic layer 113. The electrolyte layer 114, also known as an ion transfer layer, serves as an ion transfer channel. In one embodiment, the electrochromic layer 113, the electrolyte layer 114, and the ion storage layer 115 are all solid-state. The materials of the electrochromic material, the ion storage material, and the electrolyte can be materials available in the prior art, and this application does not impose any special limitations on them.

[0064] In some preferred embodiments, the first substrate layer 111 and / or the second substrate layer 117 of the electrochromic film 11 can be replaced with any one of cellulose triacetate, polycarbonate, polymethyl methacrylate, or cyclic olefin polymers, wherein the hot bending temperature of the above materials is 150°C.

[0065] In some embodiments, the hot bending temperature of the first hot bending substrate 12 is lower than the hot bending temperature of the first base layer 111, and the hot bending temperature of the first hot bending substrate 12 is lower than the hot bending temperature of the second base layer 117. Thus, the lower hot bending temperature of the first hot bending substrate 12 means that during hot bending processing, the first hot bending substrate 12 can be heated and bent independently without simultaneously heating other base layers. At this time, the first base layer 111 and the second base layer 117 remain rigid, preventing damage to the conductive layer, electrochromic layer 113, etc., due to high temperatures caused by simultaneous heating.

[0066] In some embodiments, such as Figures 2 to 5 ,as well as Figure 8 and Figure 9 As shown, the electrochromic film 11 also includes a first lead-out electrode 118 and a second lead-out electrode 119. One end of the first lead-out electrode 118 is electrically connected to the first conductive layer 112, and the other end of the first lead-out electrode 118 penetrates the resin layer 20 and extends to the outside of the resin layer 20.

[0067] One end of the second lead-out electrode 119 is electrically connected to the second conductive layer 116, and the other end of the second lead-out electrode 119 penetrates the resin layer 20 and extends beyond the resin layer 20. In application, the color-changing function of the electrochromic film 11 depends on the electric field between the first conductive layer 112 and the second conductive layer 116 driving ion migration. By connecting the lead-out electrode to the conductive layer, the voltage provided by the power supply is applied between the first conductive layer 112 and the second conductive layer 116, thereby changing the transmittance of the electrochromic layer 113. The resin layer 20 wraps the electrode penetration area, which not only fixes the position of the lead-out electrode to prevent displacement, but also provides insulation protection to prevent the lead-out electrode from contacting the surrounding materials, thus avoiding leakage or corrosion; the resin fills the holes through which the lead-out electrode penetrates, which can block environmental factors such as water vapor and oxygen from penetrating into the film, protecting the functional layer from water vapor or chemical corrosion and extending the device life.

[0068] In applications, the lead-out electrodes can be flexible circuit boards, rolled copper / aluminum foil, electrolytic copper / aluminum foil, etc., and the materials can be aluminum, copper, silver, tin, or other conductive elemental metals, non-metallic semiconductor conductive materials, their platings, or other conductive metal oxides or combinations thereof. The lead-out electrodes can also be directly formed as a power supply with a control module to directly achieve conductivity of the electrochromic layer 113.

[0069] In some embodiments, such as Figure 10 and Figure 11 As shown, the diaphragm assembly 10 further includes a second hot-bending substrate 13, a first barrier film 14, and a second barrier film 15. The first barrier film 14 is located between the first hot-bending substrate 12 and the first base layer 111, and the second barrier film 15 is located between the second hot-bending substrate 13 and the second base layer 117, wherein:

[0070] Along the thickness direction of the film assembly 10, the projection of the electrochromic film 11 lies within the projection of the first barrier film 14 and the projection of the second barrier film 15. The projection of the first barrier film 14 lies within the projection of the first hot-bending substrate 12, and the projection of the second barrier film 15 lies within the second hot-bending substrate 13. In other words, the size of the electrochromic film 11 is smaller than the size of the first barrier film 14, the size of the first barrier film 14 is smaller than the size of the first hot-bending substrate 12, the size of the electrochromic film 11 is smaller than the size of the second barrier film 15, and the size of the second barrier film 15 is smaller than the size of the second hot-bending substrate 13. These dimensions include length and width, where length is the distance in the X direction and width is the distance in the Y direction.

[0071] In application, the barrier film prevents moisture and oxygen from penetrating into the electrochromic film 11, thus preventing the functional layers (such as the electrolyte layer 114 and the electrochromic layer 113) inside the electrochromic film 11 from becoming damp, oxidizing, or decomposing. Furthermore, during the hot bending process of the substrate, the barrier film also acts as a heat insulation layer, reducing heat transfer to the base layer and preventing deformation of the base layer due to localized overheating or degradation of the functional layer performance. Moreover, by setting the size of the barrier film to be larger than that of the electrochromic film 11, and the size of the hot bending substrate to be larger than that of the barrier film, it is ensured that the barrier film provides tight protection for the electrochromic film 11. After the hot bending process, the hot bending substrate can fix the bending of both the barrier film and the electrochromic film 11, further enhancing the protective effect of the barrier film on the electrochromic film 11.

[0072] In applications, the first hot-bending substrate 12 and the second hot-bending substrate 13 are made of any one of cellulose triacetate, polycarbonate, polymethyl methacrylate, or cyclic olefin polymers. In practical applications, the first hot-bending substrate 12 and the second hot-bending substrate 13 are first hot-bent to form the electrochromic film 11.

[0073] In some embodiments, such as Figure 12 As shown, at least a portion of the first barrier film 14 extends outward relative to the edge of the electrochromic film 11 to form a first extension end 141, and at least a portion of the second barrier film 15 extends outward relative to the edge of the electrochromic film 11 to form a second extension end 151.

[0074] The diaphragm assembly 10 also includes a first sealant 16, which is filled between the first extension end 141 and the second extension end 151, and the first sealant 16 is disposed around the periphery of the electrochromic diaphragm 11.

[0075] In application, the portion of the first conductive layer 112 extending outward from the edge of the electrochromic film 11 is connected to the first lead-out electrode 118, and the portion of the second conductive layer 116 extending outward from the electrochromic layer 113 is connected to the second lead-out electrode 119. The first extension end 141 and the second extension end 151 correspond to the outward extension portions of the first conductive layer 112 and the second conductive layer 116, respectively, and provide targeted protection for the first conductive layer 112 and the second conductive layer 116. Furthermore, a sealant is applied to seal the edge of the electrochromic film 11, ensuring that water and oxygen are prevented from entering the interior of the electrochromic film 11. Additionally, the sealant also serves a mechanical fixing function, preventing separation between the layers, especially in curved surface applications where the sealant helps alleviate stress.

[0076] In some embodiments, such as Figures 8 to 11As shown, the electrochromic film 11 includes a first groove 100 and a second groove 101. The first groove 100 extends from the first substrate layer 111 to the surface of the second conductive layer 116, and the second groove 101 extends from the second substrate layer 117 to the surface of the first conductive layer 112. The bottom of the first groove 100 and the bottom of the second groove 101 are respectively used to electrically connect with the first lead-out electrode 118 and the second lead-out electrode 119.

[0077] The diaphragm assembly 10 also includes a second sealant 17 and a third sealant 18. The second sealant 17 is filled between the bottom of the first groove 100 and the first barrier membrane 14, and the third sealant 18 is filled between the bottom of the second groove 101 and the second barrier membrane 15.

[0078] In application, the first groove 100 is located at the edge of the electrochromic membrane 11. The first groove 100 penetrates the first base layer 111, the first conductive layer 112, the electrochromic layer 113, the electrolyte layer 114, and the ion storage layer 115, exposing the surface of the second conductive layer 116, and is used for electrical connection with the first lead-out electrode 118. The second groove 101 penetrates the second base layer 117, the second conductive layer 116, the electrochromic layer 113, the electrolyte layer 114, and the ion storage layer 115, exposing the surface of the first conductive layer 112, and is used for electrical connection with the second lead-out electrode 119. By providing a second sealant 17 to seal the connection between the first lead-out electrode 118 and the second conductive layer 116, and by providing a third sealant 18 to seal the connection between the second lead-out electrode 119 and the first conductive layer 112, moisture and oxygen can be prevented from entering the interior of the electrochromic membrane 11, thereby extending the membrane's service life.

[0079] In some embodiments, such as Figure 12 As shown, the second sealant 17 is located inside the first lead-out electrode 118, and the third sealant 18 is located inside the second lead-out electrode 119. In other words, the second sealant 17 is closer to the inner side of the electrochromic film 11 than the first lead-out electrode 118, and the third sealant 18 is closer to the inner side of the electrochromic film 11 than the second lead-out electrode 119. This better seals the connection between the lead-out electrode and the conductive layer, preventing moisture and oxygen from entering the interior of the electrochromic film 11, avoiding corrosion of the functional layer inside the electrochromic film 11, and extending the film's service life.

[0080] Secondly, embodiments of this application provide electrochromic glasses, including a frame and an electrochromic lens as described in the first aspect, wherein the electrochromic lens is fixed to the frame. The electrochromic glasses provided in this application, because they include the electrochromic lens of the first aspect, possess all the beneficial effects described in the first aspect.

[0081] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0082] The above-described embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of the embodiments of this application.

Claims

1. An electrochromic lens, characterized in that, include: A diaphragm assembly includes an electrochromic diaphragm and a first hot-bending substrate stacked together. A resin layer covering at least a portion of the membrane assembly; The electrochromic film has a curved surface close to the first hot-bending substrate, and the curved surface is fixed to the first hot-bending substrate.

2. The electrochromic lens as described in claim 1, characterized in that, Along the thickness direction of the film assembly, the projection of the electrochromic film lies within the projection of the first hot-bent substrate.

3. The electrochromic lens as described in claim 1, characterized in that, The base curvature of the surface is 0.5C to 4C.

4. The electrochromic lens as described in claim 1, characterized in that, The resin layer forms an accommodating space and an opening connecting the accommodating space to an external space. Part of the membrane assembly is accommodated within the accommodating space, while another part of the membrane assembly passes through the opening and extends outside the accommodating space.

5. The electrochromic lens as described in claim 1, characterized in that, The electrochromic film includes a first base layer, a first conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer, a second conductive layer, and a second base layer stacked sequentially, with the first hot-bending substrate disposed on the side of the first base layer away from the first conductive layer.

6. The electrochromic lens as described in claim 5, characterized in that, The hot bending temperature of the first hot bending substrate is lower than the hot bending temperature of the first base layer, and the hot bending temperature of the first hot bending substrate is lower than the hot bending temperature of the second base layer.

7. The electrochromic lens as described in claim 5, characterized in that, The electrochromic film further includes a first lead-out electrode and a second lead-out electrode. One end of the first lead-out electrode is electrically connected to the first conductive layer, and the other end of the first lead-out electrode penetrates the resin layer and extends beyond the resin layer. One end of the second lead electrode is electrically connected to the second conductive layer, and the other end of the second lead electrode penetrates the resin layer and extends beyond the resin layer.

8. The electrochromic lens as described in claim 5, characterized in that, The membrane assembly further includes a second hot-bending substrate, a first barrier film, and a second barrier film. The first barrier film is located between the first hot-bending substrate and the first base layer, and the second barrier film is located between the second hot-bending substrate and the second base layer, wherein: Along the thickness direction of the film assembly, the projection of the electrochromic film is located within the projection of the first barrier film and within the projection of the second barrier film. The projection of the first barrier film is located within the projection of the first hot-bending substrate, and the projection of the second barrier film is located within the second hot-bending substrate.

9. The electrochromic lens as described in claim 8, characterized in that, At least a portion of the first barrier film extends outward relative to the edge of the electrochromic film to form a first extension end, and at least a portion of the second barrier film extends outward relative to the edge of the electrochromic film to form a second extension end. The diaphragm assembly further includes a first sealant, which is filled between the first extension end and the second extension end, and is disposed around the periphery of the electrochromic diaphragm.

10. The electrochromic lens as described in claim 8, characterized in that, The electrochromic film includes a first groove and a second groove. The first groove extends from the first substrate layer to the surface of the second conductive layer, and the second groove extends from the second substrate layer to the surface of the first conductive layer. The bottom of the first groove and the bottom of the second groove are respectively used to electrically connect with the first lead-out electrode and the second lead-out electrode. The diaphragm assembly further includes a second sealant and a third sealant, wherein the second sealant is filled between the bottom of the first groove and the first barrier membrane, and the third sealant is filled between the bottom of the second groove and the second barrier membrane.

11. The electrochromic lens as described in claim 10, characterized in that, The second sealant is located inside the first lead-out electrode, and the third sealant is located inside the second lead-out electrode.

12. A type of electrochromic glasses, characterized in that, It includes a frame and an electrochromic lens as described in any one of claims 1 to 11, wherein the electrochromic lens is fixed to the frame.

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