Electrochromic device and electronic equipment
By providing a conductive carrier and a planarized conductive layer in the electrochromic device, the electrical connection between the electrode and the transparent conductive layer is improved, the problem of poor conductivity of curved electrochromic lenses is solved, and the reliability of electrochromic devices and electronic devices is improved.
Patent Information
- Application Number
- CN202420921493.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-04-29
AI Technical Summary
There is poor conductivity at the joints of the conductive welding tapes of the curved electrochromic lenses, resulting in poor reliability of the electrochromic lenses.
The electrochromic device is provided with a conductive carrier and a planarized conductive layer. By forming a uniform and continuous conductive film layer in the trench, the electrical connection performance between the electrode and the transparent conductive layer is improved, and a flat and uniform intermediate carrier film layer is formed on the conductive support to improve connection stability.
It improves the electrical connection performance and connection stability between the electrode and the transparent conductive layer, reduces the possibility of warping under high temperatures, and improves the reliability of electrochromic devices and electronic devices.
Smart Images
Figure CN223180525U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electrochromic technology, and particularly to an electrochromic device and an electronic device. Background Art
[0002] As a portable intelligent device, AR glasses are often used indoors and outdoors. AR glasses generally use electrochromic lenses to shield the influence of external light on the imaging quality of AR glasses.
[0003] An electrochromic lens achieves the coloring and decoloring reactions of an electrochromic element through a driving voltage, and changes the originally transparent and colorless lens into a colored state after being powered on. The electrochromic lens includes a substrate, and a first transparent conductive layer, a color-changing layer, and a second transparent conductive layer sequentially stacked on the substrate. The first transparent conductive layer and the second transparent conductive layer are respectively connected to conductive solder tapes. However, there is a problem of poor conductivity at the connection of the conductive solder tapes of the current curved electrochromic lens, resulting in poor reliability of the electrochromic lens. Summary of the Invention
[0004] Based on this, in view of the problem of poor reliability of electrochromic lenses, the present application provides an electrochromic device and an electronic device.
[0005] In a first aspect, an embodiment of the present application provides an electrochromic device, including:
[0006] A substrate;
[0007] A first transparent conductive layer disposed on one side of the substrate;
[0008] A color-changing functional layer disposed on the side of the first transparent conductive layer away from the substrate;
[0009] A second transparent conductive layer disposed on the side of the color-changing functional layer away from the substrate;
[0010] A first groove penetrating through the second transparent conductive layer and the color-changing functional layer along the thickness direction of the substrate;
[0011] A conductive carrier disposed in the first groove and connected to the first transparent conductive layer;
[0012] A first planarized conductive layer disposed on the side of the conductive carrier away from the substrate;
[0013] A first electrode connected to the side of the first planarized conductive layer away from the substrate.
[0014] In one of the embodiments, the electrochromic device further includes:
[0015] a second planarized conductive layer, disposed on a surface of the second transparent conductive layer away from the substrate;
[0016] The second electrode is connected to a side of the second planarized conductive layer away from the substrate.
[0017] In one embodiment, the first planarized conductive layer and the second planarized conductive layer are made of the same material.
[0018] In one embodiment, the material of the first planarized conductive layer includes conductive glue;
[0019] And / or, the material of the second planarized conductive layer includes conductive glue.
[0020] In one embodiment, a second groove is provided on the first transparent conductive layer, and the second groove divides the first transparent conductive layer into a first conductive area and a second conductive area, and the first conductive area is electrically connected to the conductive carrier;
[0021] A third groove is provided on the second transparent conductive layer, and the third groove divides the second transparent conductive layer into a third conductive area and a fourth conductive area. The third conductive area is electrically connected to the conductive carrier, and the second planarized conductive layer is provided on the fourth area.
[0022] In one embodiment, the maximum dimension of the conductive carrier along the thickness direction of the substrate is greater than the dimension of the first groove along the thickness direction of the substrate.
[0023] In one embodiment, a maximum dimension of the conductive carrier along the thickness direction of the substrate is equal to a dimension of the first groove along the thickness direction of the substrate.
[0024] In one embodiment, the conductive carrier is made of one or more materials selected from the group consisting of indium, silver, copper, aluminum, and tin.
[0025] In one embodiment, the color-changing functional layer includes a color-changing layer, an ion-conducting layer, and an ion-storage layer stacked in a direction away from the substrate.
[0026] In a second aspect, an embodiment of the present application provides an electronic device, which includes the electrochromic device in any embodiment of the first aspect.
[0027] The electrochromic device and electronic device provided by the embodiments of the present application are provided with a conductive carrier in the first trench, which is beneficial to form a uniform and continuous conductive film layer in the first trench, improves the poor interface formed when the first trench is etched by laser, and thus improves the electrical connection performance between the first electrode and the first transparent conductive layer; by providing a first planarized conductive layer on the conductive carrier, it is beneficial to form a relatively flat and uniform intermediate carrier film layer on the conductive carrier, so that the connection surface between the first electrode and the first planarized conductive layer is relatively flat, uniform and continuous, improves the connection stability between the first electrode and the first planarized conductive layer, reduces the warping of the connection part of the first electrode at high temperatures, further improves the electrical connection performance between the first electrode and the first transparent conductive layer, and improves the reliability of the electrochromic device and the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0029] Figure 1 FIG. is a schematic cross-sectional structure diagram of an electrochromic device provided by an embodiment of the present application.
[0030] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of a partial structure of the electrochromic device shown.
[0031] Figure 3 FIG. is a schematic cross-sectional structure diagram of another electrochromic device provided by an embodiment of the present application.
[0032] Description of the reference numerals:
[0033] 10. Electrochromic device; 11. Substrate; 12. First transparent conductive layer; 121. First conductive region; 122. Second conductive region; 13. Color-changing functional layer; 131. Color-changing layer; 132. Ion conduction layer; 133. Ion storage layer; 14. Second transparent conductive layer; 141. Third conductive region; 142. Fourth conductive region; 15. Conductive carrier; 161. First planarized conductive layer; 162. Second planarized conductive layer; 171. First electrode; 172. Second electrode; 181. First trench; 182. Second trench; 183. Third trench. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0034] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present application.
[0036] In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0037] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0038] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0039] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.
[0040] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprising" or "having" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof. At the same time, in this specification, the term "and / or" includes any and all combinations of the related listed items.
[0041] In the technology of curved electrochromic lenses, generally, conductive silver paste is filled in the grooves of the electrochromic lenses, and then screen printing is carried out to make electrodes. However, since the electrochromic lenses are curved, the screen printing is difficult and the material waste is relatively serious. To solve the above problems, in the related technology, metal is filled in the grooves, and a conductive non-woven fabric tape is used to bond the conductive solder tape to the filled metal to form an electrode. However, there is a problem of poor contact at the connection of the conductive solder tape of this electrochromic lens, resulting in poor reliability of the electrochromic lens.
[0042] The inventor has found through research that due to the uneven surface of the filled metal, after the conductive non-woven fabric tape is attached to the filled metal, the surface of the conductive non-woven fabric tape is also uneven. After the conductive solder tape is bonded to the uneven surface, it is easy to warp at high temperatures, resulting in poor conductivity between the conductive solder tape and the filled metal, affecting the normal use of the electrochromic device and reducing the reliability of the electrochromic device.
[0043] In view of the above at least one problem, the embodiments of the present application provide an electrochromic device and an electronic device that can improve reliability.
[0044] In a first aspect, referring to Figure 1 and Figure 2As shown in the figure, an electrochromic device 10 is provided in an embodiment of the present application. The electrochromic device 10 includes: a substrate 11, a first transparent conductive layer 12, a color-changing functional layer 13, a second transparent conductive layer 14, a conductive carrier 15, a first planarized conductive layer 161, a first electrode 171, and a first trench 181. It should be noted that the surface of the substrate 11 is a curved surface, that is, the substrate 11 is a curved substrate.
[0045] Among them, the first transparent conductive layer 12 is disposed on one side of the substrate 11, the color-changing functional layer 13 is disposed on the side of the first transparent conductive layer 12 away from the substrate 11, and the second transparent conductive layer 14 is disposed on the side of the color-changing functional layer 13 away from the substrate 11. The first trench 181 penetrates through the second transparent conductive layer 14 and the color-changing functional layer 13 along the thickness direction of the substrate 11. Here, the thickness direction of the substrate 11 is Figure 1 the Z direction in. The conductive carrier 15 is disposed in the first trench 181 and is connected to the first transparent conductive layer 12. The first planarized conductive layer 161 is disposed on the side of the conductive carrier 15 away from the substrate 11. The first electrode 171 is connected to the side of the first planarized conductive layer 161 away from the substrate 11.
[0046] In the embodiment of the present application, the first planarized conductive layer 161 is a film layer that not only has a planarizing function but also has a conductive function.
[0047] It should be noted that when laser etches the first trench 181, it is easy to form a poor interface. For example, the laser does not etch through the color-changing functional layer 13, or the laser etches through some areas of the substrate 11. By disposing the conductive carrier 15 in the first trench 181, it is beneficial to form a uniform and continuous conductive film layer in the first trench 181, improve the poor interface formed by laser etching, and thus improve the electrical connection performance between the first electrode 171 and the first transparent conductive layer 12.
[0048] Furthermore, by disposing the first planarized conductive layer 161 on the conductive carrier 15, it is beneficial to form a relatively flat and uniform intermediate carrier film layer on the conductive carrier 15, so that the connection surface between the first electrode 171 and the intermediate carrier film layer (the first planarized conductive layer 161) is relatively flat, uniform, and continuous, improving the connection stability between the first electrode 171 and the first planarized conductive layer 161, reducing the warping of the connection part of the first electrode 171 at high temperatures, further improving the electrical connection performance between the first electrode 171 and the first transparent conductive layer 12, and enhancing the reliability of the electrochromic device 10.
[0049] In one embodiment, the electrochromic device 10 further includes a second planarizing conductive layer 162 and a second electrode 172. The second planarizing conductive layer 162 is disposed on a surface of the second transparent conductive layer 14 away from the substrate 11. The second electrode 172 is connected to a side of the second planarizing conductive layer 162 away from the substrate 11. By providing the second planarizing conductive layer 162, it helps to form a flat and uniform intermediate carrier film layer on the surface of the second transparent conductive layer 14, so that the connection surface between the second electrode 172 and the intermediate carrier film layer (the second planarizing conductive layer 162) is relatively flat, uniform and continuous, improving the connection stability between the second electrode 172 and the second transparent conductive layer 14.
[0050] In one embodiment, the first planarizing conductive layer 161 and the second planarizing conductive layer 162 are made of the same material. Thus, it is beneficial to reduce the number of material types during the manufacturing process of the electrochromic device 10 and reduce the manufacturing difficulty.
[0051] In one embodiment, the material of the first planarizing conductive layer 161 includes a conductive adhesive. Exemplarily, the conductive adhesive can be carbon nanotube conductive glue, silver paste conductive glue, conductive epoxy resin glue, nickel-coated conductive glue, high-viscosity conductive glue, etc.
[0052] Thus, the first planarizing conductive layer 161 also has a connecting function and can bond the first electrode 171 to the conductive carrier 15.
[0053] In one embodiment, the material of the second planarizing conductive layer 162 includes a conductive adhesive. Exemplarily, the conductive adhesive can be carbon nanotube conductive glue, silver paste conductive glue, conductive epoxy resin glue, nickel-coated conductive glue, high-viscosity conductive glue, etc.
[0054] Thus, the second planarizing conductive layer 162 also has a connecting function and can bond the second electrode 172 to the second transparent conductive layer 14.
[0055] In one embodiment, referring to Figure 2 As shown, a second groove 182 is provided on the first transparent conductive layer 12. The second groove 182 divides the first transparent conductive layer 12 into a first conductive region 121 and a second conductive region 122, and the first conductive region 121 is electrically connected to the conductive carrier 15. A third groove 183 is provided on the second transparent conductive layer 14. The third groove 183 divides the second transparent conductive layer 14 into a third conductive region 141 and a fourth conductive region 142. The first groove 181 is provided on the third conductive region 141, and the third conductive region 141 is electrically connected to the conductive carrier 15. The second planarizing conductive layer 162 is disposed on the fourth region.
[0056] The insulation between the first electrode 171 and the second electrode 172 can be achieved by providing the second groove 182 and the third groove 183.
[0057] In one embodiment, referring to Figure 1 As shown, the maximum dimension of the conductive carrier 15 in the thickness direction of the substrate 11 is equal to the dimension of the first groove 181 in the thickness direction of the substrate 11. In this way, when filling the conductive carrier 15, it is possible to avoid the overflow of the fluid of the conductive carrier 15, resulting in material waste.
[0058] It should be noted that the top surface of the conductive carrier 15 is uneven, and the maximum dimension of the conductive carrier 15 in the thickness direction of the substrate 11 can be understood as the maximum height of the conductive carrier 15. The dimension of the first groove 181 in the thickness direction of the substrate 11 can be understood as the depth of the first groove 181.
[0059] In one embodiment, referring to Figure 3 As shown, the maximum dimension of the conductive carrier 15 in the thickness direction of the substrate 11 is greater than the dimension of the first groove 181 in the thickness direction of the substrate 11. In this way, the volume of the conductive carrier 15 can be made larger, which is beneficial to reducing the resistance of the conductive carrier 15, thereby improving the electrical connection performance between the first electrode 171 and the first transparent conductive layer 12.
[0060] In one embodiment, the material of the conductive carrier 15 includes one or more of indium, silver, copper, aluminum, and tin. The melting points of the above materials are relatively low. When manufacturing the conductive carrier 15, the above materials can be melted in a high-temperature environment and then filled into the first groove 181. By using the above materials, it is beneficial to reduce the manufacturing difficulty of the conductive carrier 15.
[0061] In one embodiment, the electrochromic functional layer 13 includes an electrochromic layer 131, an ion conduction layer 132, and an ion storage layer 133 stacked in a direction away from the substrate 11. In this way, the ion migration speed can be increased, thereby increasing the electrochromic speed.
[0062] In one embodiment, the materials of the first transparent conductive layer 12 and the second transparent conductive layer 14 are metal oxides.
[0063] In one embodiment, the first electrode 171 and the second electrode 172 are metal solder tapes. Further, the first electrode 171 and the second electrode 172 can be copper-tin solder tapes.
[0064] In a second aspect, an embodiment of the present application provides an electronic device, which includes the electrochromic device 10 in any one of the embodiments of the first aspect.
[0065] Specifically, the electronic device may be an Augmented Reality (AR) device, a Virtual Reality (VR) device, a wearable device, etc.
[0066] In the electronic device provided by the embodiment of the present application, by arranging the conductive carrier 15 in the first trench 181, it is beneficial to form a uniform and continuous conductive film layer in the first trench 181, improving the poor interface formed when the laser etches the first trench 181, thereby enhancing the electrical connection performance between the first electrode 171 and the first transparent conductive layer 12; by arranging the first planarized conductive layer 161 on the conductive carrier 15, it is beneficial to form a relatively flat and uniform intermediate carrier film layer on the conductive carrier 15, so that the connection surface between the first electrode 171 and the first planarized conductive layer 161 is relatively flat, uniform and continuous, enhancing the connection stability between the first electrode 171 and the first planarized conductive layer 161, reducing the warping of the connection part of the first electrode 171 at high temperatures, further improving the electrical connection performance between the first electrode 171 and the first transparent conductive layer 12, and enhancing the reliability of the electronic device.
[0067] In the description of this specification, the description with reference to terms such as "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, mechanisms, materials or features described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.
[0068] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features of the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0069] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.
Claims
1. An electrochromic device, characterized in that, Comprising: A substrate; A first transparent conductive layer disposed on one side of the substrate; A color-changing functional layer disposed on the side of the first transparent conductive layer away from the substrate; A second transparent conductive layer disposed on the side of the color-changing functional layer away from the substrate; A first trench penetrating the second transparent conductive layer and the color-changing functional layer along the thickness direction of the substrate; A conductive carrier disposed in the first trench and connected to the first transparent conductive layer; A first planarized conductive layer disposed on the side of the conductive carrier away from the substrate; A first electrode connected to the side of the first planarized conductive layer away from the substrate.
2. The electrochromic device according to claim 1, wherein The electrochromic device further comprises: A second planarized conductive layer disposed on the surface of the second transparent conductive layer away from the substrate; A second electrode connected to the side of the second planarized conductive layer away from the substrate.
3. The electrochromic device according to claim 2, wherein The first planarized conductive layer and the second planarized conductive layer are made of the same material.
4. The electrochromic device according to claim 2, wherein, The material of the first planarized conductive layer includes conductive adhesive; And / or, the material of the second planarized conductive layer includes conductive adhesive.
5. The electrochromic device according to claim 2, wherein A second trench is provided on the first transparent conductive layer, and the second trench divides the first transparent conductive layer into a first conductive region and a second conductive region, and the first conductive region is electrically connected to the conductive carrier; A third trench is provided on the second transparent conductive layer, and the third trench divides the second transparent conductive layer into a third conductive region and a fourth conductive region, the third conductive region is electrically connected to the conductive carrier, and the second planarized conductive layer is disposed on the fourth conductive region.
6. The electrochromic device according to any one of claims 1-5, characterized in that, The maximum dimension of the conductive carrier along the thickness direction of the substrate is greater than the dimension of the first trench along the thickness direction of the substrate.
7. The electrochromic device according to any one of claims 1-5, characterized in that, The maximum dimension of the conductive carrier along the thickness direction of the substrate is equal to the dimension of the first trench along the thickness direction of the substrate.
8. The electrochromic device according to any one of claims 1-5, characterized in that, The material of the conductive carrier includes one of indium, silver, copper, aluminum, and tin.
9. The electrochromic device according to any one of claims 1-5, characterized in that, The color-changing functional layer includes a color-changing layer, an ion-conducting layer, and an ion-storing layer stacked in a direction away from the substrate.
10. An electronic device, characterized in that, An electrochromic device according to any one of claims 1-9.