Conductive substrate, adjustable light device and rearview mirror

Abstract

The present invention provides a conductive substrate, an adjustable light device and a rearview mirror, which relate to the field of electrochromic technology. The conductive substrate includes a substrate layer, a transparent conductive layer, a bus bar and a lead-out electrode. The transparent conductive layer is stacked on the substrate layer; the bus bar is arranged on the transparent conductive layer, and the bus bar has a protrusion, and the protrusion is used to be electrically connected to an external power supply; the protrusion is electrically connected to the external power supply through the lead-out electrode. The conductive substrate provided by the present invention stacks a transparent conductive layer on the substrate layer and arranges the bus bar on the transparent conductive layer, which not only reduces the surface resistance of the transparent conductive layer and accelerates the rate of electrical conduction, but also directly arranges the bus bar on the transparent conductive layer, which simplifies the preparation process, facilitates operation, and is conducive to mass production process. The bus bar has a protrusion so that it can be electrically connected to the external power supply through the protrusion via the lead-out electrode, which simplifies the preparation process.

Description

Technical Field

[0001] The present invention relates to the technical field of electrochromic technology, and in particular to a conductive substrate, a dimmable light device and a rearview mirror. Background Art

[0002] Electrochromism refers to the phenomenon that a material changes color reversibly under the action of an electric field. Electrochromism is essentially an electrochemical redox reaction, and after the reaction, the material shows a reversible change in color. An electrochromic device refers to a device containing an electrochromic material, and usually has a multi-layer stack, such as a first substrate layer, a first conductive layer, an electrochromic stack layer (electrochromic layer, electrolyte layer, ion storage layer) and a second conductive layer, a second substrate layer, wherein the conductive layer usually uses indium tin oxide (ITO) material, but ITO has a large surface resistance and requires a long time for electrical conduction. Especially for some electrochromic devices with a large area, it takes a long time to achieve its full color change, and the color change rate is slow.

[0003] Some existing technologies reduce the surface resistance of ITO by depositing a metal grid on the conductive layer. However, depositing a metal grid on the conductive layer, i.e., the surface of ITO, can easily damage the conductive layer and cause defects in the conductive layer, resulting in higher process requirements and greater operational difficulty, which is not conducive to mass production and industrialization. Summary of the invention

[0004] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art. The present application provides a conductive substrate, a dimmable light device and a rearview mirror.

[0005] The first aspect of the present application provides a conductive substrate, comprising: a substrate layer; a transparent conductive layer, the transparent conductive layer is stacked on the substrate layer; a bus bar, arranged on the transparent conductive layer, the bus bar has a protrusion, the protrusion is used to be electrically connected to an external power supply; the protrusion is electrically connected to the external power supply through the lead-out electrode.

[0006] In the first aspect of the present application, by stacking a transparent conductive layer on the substrate layer and arranging the busbar on the transparent conductive layer, not only the surface resistance of the transparent conductive layer is reduced and the rate of electrical conduction is accelerated, but also the busbar is directly arranged on the transparent conductive layer, which simplifies the preparation process, facilitates operation, and is conducive to mass production. The busbar has a protrusion so that it can be electrically connected to an external power source through the protrusion via the lead-out electrode, which simplifies the preparation process. It avoids the damage to the transparent conductive layer during the preparation of the metal grid layer in the prior art, prevents the generation of defects in the transparent conductive layer, and improves the reliability and stability of the conductive substrate.

[0007] In addition, the conductive substrate according to the present application may also have the following additional technical features:

[0008] In some embodiments of the present application, the width of the protrusion is X, and the width of the connection between the lead-out electrode and the protrusion is Y, satisfying the relationship: Y≤X. Thus, by setting the width Y of the connection between the lead-out electrode and the protrusion to be less than or equal to the width X of the protrusion, the connection between the lead-out electrode and the bus bar is facilitated.

[0009] In some embodiments of the present application, the width of the protrusion is X, and the width of the connection between the extraction electrode and the protrusion is Y, satisfying the relationship: (XY) / X=K1, 0.1≤K1≤0.2. Therefore, by setting the ratio K1 between 0.1 and 0.2, it is possible to ensure the convenience and stability of the connection between the extraction electrode and the protrusion, and at the same time, it is possible to simplify the setting of the protrusion and prevent the width of the protrusion from being too large.

[0010] In some embodiments of the present application, the conductive substrate further comprises conductive strips, and the conductive strips are respectively electrically connected to the two ends of the protrusion. Thus, by providing conductive strips respectively electrically connected to the two ends of the protrusion on the conductive substrate, the two ends of the protrusion can be electrically connected to each other, so as to appropriately share a part of the current for the protrusion, thereby preventing the current of the protrusion from being too large.

[0011] In some embodiments of the present application, the two ends of the lead-out electrode respectively have a first conductive portion and a second conductive portion, the first conductive portion is electrically connected to the protrusion, and the second conductive portion is electrically connected to the external power supply, wherein the first conductive portion and the second conductive portion are respectively located on different surfaces of the lead-out electrode. Thus, by respectively providing the first conductive portion and the second conductive portion at the two ends of different surfaces of the lead-out electrode, and the first conductive portion and the second conductive portion are electrically connected to the protrusion and the external power supply, the lead-out electrode is resistant to bending, one side of the first conductive portion of the lead-out electrode is connected to the protrusion, and after bending, one side of the second conductive portion of the lead-out electrode can be exposed so that the second conductive portion is electrically connected to the external power supply, so that an electrical connection can be formed more effectively and conveniently. That is, the lead-out electrode only needs to be bent, and there is no need to twist it to form an electrical connection.

[0012] In some embodiments of the present application, the extraction electrode further comprises a third conductive part, a first insulating adhesive layer, and a second insulating adhesive layer, wherein the first conductive part and the second conductive part are electrically connected through the third conductive part, and the first insulating adhesive layer and the second insulating adhesive layer respectively cover different surfaces of the third conductive part. Thus, the first conductive part and the second conductive part are electrically connected through the third conductive part, and the first insulating adhesive layer and the second insulating adhesive layer are provided to cover different surfaces of the third conductive part respectively, so as to prevent the third conductive part from being exposed except for the first conductive part and the second conductive part, so as to avoid forming a conductive connection with other structures to affect the conductive performance of the extraction electrode, and to prevent the occurrence of short circuit failure and the like.

[0013] In a second aspect of the present application, a dimmable light device is provided, comprising a dimmable light layer and two conductive substrates as described in any one of the above embodiments, wherein the two conductive substrates are respectively a first conductive substrate and a second conductive substrate, and the first conductive substrate and the second conductive substrate are respectively arranged on both sides of the dimmable light layer; the first conductive substrate comprises a first bus bar, the first bus bar comprises a first protrusion, and the first protrusion is not covered by the dimmable light layer; the second conductive substrate comprises a second bus bar, the second bus bar comprises a second protrusion, and the second protrusion is not covered by the dimmable light layer; wherein the first protrusion and the second protrusion are respectively located at two ends of the dimmable light layer and are symmetrically arranged with respect to each other.

[0014] In the second aspect of the present application, optionally, the dimmable layer is a liquid dimmable layer, a solid dimmable layer or a sol dimmable layer, or a combination of two or more thereof. Preferably, the dimmable layer is an electrochromic stacked layer, and the electrochromic stacked layer includes an ion storage layer, an electrolyte layer and an electrochromic layer stacked in sequence. By arranging the dimmable layer between the conductive substrates to form a dimmable device, an external power supply is introduced between the two conductive substrates to form an electric field on both sides of the dimmable layer, thereby driving the dimmable layer to color or fade, that is, the dimmable device shows a change in transmittance in appearance, thereby achieving the effect of regulating the transmittance of the scene in which the dimmable device is applied; and by setting the bus bar, the efficiency of electrical conduction on the dimmable device is improved, thereby accelerating the efficiency of the device responding to color change, shortening the time required for transmittance adjustment, and improving the user experience. Thus, the first bus bar and the second bus bar are respectively arranged on the first conductive substrate and the second conductive substrate, and the first bus bar and the second bus bar are respectively provided with the first protrusion and the second protrusion which are not covered by the dimmable layer. In this way, the first bus bar and the second bus bar are electrically connected to the external power supply through the first protrusion and the second protrusion respectively, so as to form an electric field on both sides of the dimmable layer, thereby driving the dimmable layer to be colored or faded, that is, the dimmable device shows a change in transmittance in appearance, thereby achieving the effect of regulating the transmittance of the scene in which the dimmable device is applied. The first protrusion and the second protrusion are respectively arranged at the two ends of the dimmable layer, and are arranged symmetrically to each other, so as to improve the uniformity of electrical conduction. Preferably, the first protrusion is located in the middle of the first bus bar, and the second protrusion is located in the middle of the second bus bar, so as to further improve the uniformity of electrical conduction.

[0015] In some embodiments of the present application, the first conductive substrate further includes a first conductive strip, and the second conductive substrate further includes a second conductive strip, wherein the first conductive strip is respectively connected to the two ends of the first protrusion, and the second conductive strip is respectively connected to the two ends of the second protrusion. Thus, by arranging the first conductive strips respectively connected to the two ends of the first protrusion on the first conductive substrate, and arranging the second conductive strips respectively connected to the two ends of the second protrusion on the second conductive substrate, the two ends of the first protrusion and the second protrusion can be electrically connected to each other, so as to appropriately share a part of the current for the first protrusion and the second protrusion, thereby preventing the first protrusion and the second protrusion from being damaged by excessive current on the dimmable layer, and improving the reliability and stability of the dimmable device.

[0016] In some embodiments of the present application, the first bus bar extends along the edge of the first conductive substrate to form a first end, the second bus bar extends along the edge of the second conductive substrate to form a second end close to the first end, the distance between the first end and the second end is D, the perimeter of the conductive substrate is L1, and the relationship is satisfied: D / L1=K2, 0.01≤K2≤0.1; the length of the first bus bar or the second bus bar is L2, and the relationship is satisfied: L2 / L1=K3, 0.4≤K3≤0.5. Thus, by extending the first bus bar along the edge of the first conductive substrate to form the first end, and extending the second bus bar along the edge of the second conductive substrate to form the second end close to the first end, a certain distance is provided between the first end and the second end. When the distance is too small, it is easy to cause tip discharge and cause damage and failure of the adjustable light layer. When the distance is too large, the corresponding bus bar length is too small, resulting in too low a rate of electrical conduction. Wherein, the distance between the first end and the second end is D, the perimeter of the conductive substrate is L1, and the length of the first bus bar or the second bus bar is L2. By setting the ratio K2 between 0.01 and 0.1, and the ratio K3 between 0.4 and 0.5, the distance between the first end and the second end and the length of the bus bar are more appropriate, which can prevent the damage and failure of the dimmable light device caused by the tip discharge, and can maximize the color change rate of the dimmable light device. Preferably, the ratio K2 is between 0.01 and 0.04. More preferably, the distance between the first end and the second end is between 1 cm and 2 cm.

[0017] In some embodiments of the present application, the first bus bar extends along the edge of the first conductive substrate to form a first closed structure, and the second bus bar extends along the edge of the second conductive substrate to form a second closed structure. Thus, by extending the first bus bar along the edge of the first conductive substrate to form the first closed structure, and extending the second bus bar along the edge of the second conductive substrate to form the second closed structure, the surface resistance of the transparent conductive layer can be further reduced, and the rate of electrical conduction can be further increased, thereby further accelerating the color change rate of the dimmable light device, and preventing the damage and failure of the dimmable light device caused by the tip discharge.

[0018] In the third aspect of the present application, a rearview mirror is provided, comprising a reflective substrate, an adjustable light device described in any of the above embodiments, and a glass cover plate, which are stacked in sequence. In the third aspect of the present application, by arranging an adjustable light device between the reflective substrate and the glass cover plate, the reflective substrate, the adjustable light device, and the glass cover plate can be combined to form a rearview mirror. The reflective substrate and the glass cover plate not only play a good protective role for the adjustable light device, but the reflective substrate can also reflect external light to form an image for display to the user, thereby realizing the function of the rearview mirror.

[0019] In some embodiments of the present application, a reflective layer is provided on the side of the reflective substrate close to the dimmable light device, and the reflective layer is provided with an escape hole for avoiding light. Thus, by providing a reflective layer on the side of the reflective substrate close to the dimmable light device, the external light is reflected through the reflective layer to be displayed to the user as an image, thereby realizing the function of a rearview mirror. By providing an escape hole for avoiding light on the reflective layer, a blind spot monitoring indicator light can be provided on the side of the reflective substrate away from the dimmable light device, corresponding to the position of the escape hole. When the sensor senses that an object is approaching the blind spot, the controller controls the blind spot monitoring indicator light to flash, and the flashing light of the blind spot monitoring indicator light can be seen by the user on the side of the glass cover through the escape hole, thereby prompting the user to pay attention to the safety of the blind spot and improving driving safety.

[0020] In some embodiments of the present application, the first conductive substrate includes a first lead-out electrode, the second conductive substrate includes a second lead-out electrode, the first lead-out electrode is respectively connected to the first protrusion and the positive power line of the external power supply, the second lead-out electrode is respectively connected to the second protrusion and the negative power line of the external power supply, the first lead-out electrode and the second lead-out electrode are both bent toward the side of the reflective substrate away from the dimmable light device, and are attached to the edge of the side of the reflective substrate away from the dimmable light device. Thus, the first protrusion is electrically connected to the positive power line of the external power supply by setting the first lead-out electrode, and the second protrusion is electrically connected to the negative power line of the external power supply by setting the second lead-out electrode, so that the dimmable light device can be more conveniently electrically connected to the external power supply. By bending the first lead electrode and the second lead electrode toward the side of the reflective substrate away from the dimmable light device and fitting to the edge of the side of the reflective substrate away from the dimmable light device, the first lead electrode and the second lead electrode are fitted to the outside of the reflective substrate. On the one hand, the first lead electrode and the second lead electrode cannot be seen through the outside of the glass cover plate, which improves the aesthetics of the rearview mirror. On the other hand, by bending the first lead electrode and the second lead electrode to the outside of the reflective substrate, the electrical connection with the external wire of the rearview mirror can be more convenient, which improves the reliability and stability of the dimmable light device.

[0021] In some embodiments of the present application, a first adhesive layer is provided at the connection between the first extraction electrode, the reflective substrate and the positive power line, and a second adhesive layer is provided at the connection between the second extraction electrode, the reflective substrate and the negative power line. Thus, by providing a first adhesive layer at the connection between the first extraction electrode, the reflective substrate and the positive power line, and providing a second adhesive layer at the connection between the second extraction electrode, the reflective substrate and the negative power line, the adhesion between the first extraction electrode, the positive power line and the reflective substrate can be improved, and the adhesion between the second extraction electrode, the negative power line and the reflective substrate can be improved, so as to prevent the occurrence of the situation that the conductive performance is affected by falling off, and improve the use stability and reliability of the dimmable light device.

[0022] Compared with the prior art, the beneficial effects of the present application are as follows: the present application proposes a conductive substrate, an adjustable light device and a rearview mirror, which not only reduces the surface resistance of the transparent conductive layer and accelerates the rate of electrical conduction by stacking a transparent conductive layer on the substrate layer, but also directly sets the busbar on the transparent conductive layer, which simplifies the preparation process, facilitates operation, and is conducive to mass production. The busbar has a protrusion so that it can form an electrical connection with an external power source through the protrusion through the lead-out electrode, which simplifies the preparation process. It avoids the damage to the transparent conductive layer during the preparation of the metal grid layer in the prior art, prevents the generation of defects in the transparent conductive layer, and improves the reliability and stability of the conductive substrate.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram showing an implementation of a conductive substrate in some embodiments of the present application Figure 1 ;

[0026] Figure 2 Shows Figure 1 A schematic top view of a conductive substrate;

[0027] Figure 3 A schematic diagram showing an implementation of a conductive substrate in some embodiments of the present application Figure 2 ;

[0028] Figure 4 Shows Figure 3 A schematic top view of a conductive substrate;

[0029] Figure 5 A schematic diagram showing an implementation of a conductive substrate in some embodiments of the present application Figure 3 ;

[0030] Figure 6 Shows Figure 5 A schematic top view of a conductive substrate;

[0031] Figure 7 A schematic diagram showing an implementation of a conductive substrate in some embodiments of the present application Figure 4 ;

[0032] Figure 8 Shows Figure 7 A schematic top view of a conductive substrate;

[0033] Fig. 9 A schematic diagram of the structure of the lead-out electrode in some embodiments of the present application is shown;

[0034] Fig.10 A schematic diagram showing an implementation of a dimmable light device in some embodiments of the present application Figure 1 ;

[0035] Fig.11 Shows Fig.10 Top view of the dimmable light device Figure 1 ;

[0036] Fig.12 Shows Fig.10 Schematic diagram of the dimmable light device from above Figure 2 ;

[0037] Fig.13 A schematic diagram showing an implementation of a dimmable light device in some embodiments of the present application Figure 2 ;

[0038] Fig.14 Shows Fig.13 A schematic top view of a dimmable light device;

[0039] Fig.15 Shows Fig.10 Top view of the dimmable light device Figure 3 ;

[0040] Fig.16 A schematic diagram showing an implementation of a rearview mirror in some embodiments of the present application Figure 1 ;

[0041] Fig.17A schematic diagram showing an implementation of a rearview mirror in some embodiments of the present application Figure 2 ;

[0042] Fig.18 A schematic diagram showing an implementation of a rearview mirror in some embodiments of the present application Figure 3 .

[0043] Description of main component symbols:

[0044] 100-conductive substrate; 101-first conductive substrate; 102-second conductive substrate; 10-substrate layer; 20-transparent conductive layer; 30-bus bar; 301-protrusion; 3011-first protrusion; 3012-second protrusion; 302-first bus bar; 3021-first end; 3022-first closed structure; 303-second bus bar; 3031-second end; 3032-second closed structure; 40-conductive strip; 401-first conductive strip; 402-second conductive strip; 50-lead electrode; 501- The first lead-out electrode; 502-the second lead-out electrode; 503-the first conductive part; 504-the second conductive part; 505-the third conductive part; 506-the first insulating adhesive layer; 507-the second insulating adhesive layer; 600-the dimmable light device; 60-the dimmable light layer; 70-the reflective substrate; 701-the reflective layer; 7011-the avoidance hole; 80-the glass cover; 90-the first adhesive layer; 91-the second adhesive layer; 92-the third adhesive layer; 93-the fourth adhesive layer; 94-the fifth adhesive layer; 95-the shielding layer; 1000-the rearview mirror. DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the template are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0050] like Figures 1 to 8 As shown, an embodiment of the first aspect of the present application provides a conductive substrate 100, which mainly relates to the field of electrochromic rearview mirrors, which can be applied to an adjustable light device 600, and then the adjustable light device 600 is applied to a rearview mirror 1000 of a vehicle (such as a reflector, rearview mirror, etc. of a car, truck, bus or other vehicle).

[0051] The conductive substrate 100 includes a substrate layer 10 , a transparent conductive layer 20 , a bus bar 30 and an extraction electrode 50 .

[0052] The transparent conductive layer 20 is stacked on the base layer 10 , the bus bar 30 is disposed on the transparent conductive layer 20 , and the bus bar 30 has a protrusion 301 , which is used to be electrically connected to an external power source. The protrusion 301 is electrically connected to the external power source through the lead-out electrode 50 .

[0053] The conductive substrate 100 provided in the embodiment of the present application is formed by stacking a transparent conductive layer 20 on a substrate layer 10, and setting a bus bar 30 on the transparent conductive layer 20, which can be set by silk screen printing, thereby reducing the surface resistance of the transparent conductive layer 20 and accelerating the rate of electrical conduction.

[0054] In addition, the bus bar 30 is directly disposed on the transparent conductive layer 20, which simplifies the preparation process, facilitates operation, and is conducive to mass production. The bus bar 30 has a protrusion 301, so that the protrusion 301 can be electrically connected to an external power source through the lead-out electrode 50, which simplifies the preparation process. The damage to the transparent conductive layer during the preparation of the metal grid layer in the prior art is avoided, the generation of defects in the transparent conductive layer is prevented, and the reliability and stability of the conductive substrate are improved.

[0055] like Figure 6 and Figure 8 As shown, in some embodiments of the present application, optionally, the width of the protrusion 301 is X, and the width of the connection between the lead-out electrode 50 and the protrusion 301 is Y, satisfying the relationship: Y≤X. Thus, by setting the width Y of the connection between the lead-out electrode 50 and the protrusion 301 to be less than or equal to the width X of the protrusion 301, the connection between the lead-out electrode 50 and the bus bar 30 is facilitated.

[0056] like Figure 6 and Figure 8 As shown, in some embodiments of the present application, optionally, the width of the protrusion 301 is X, and the width of the connection between the extraction electrode 50 and the protrusion 301 is Y, satisfying the relationship: (XY) / X=K1, 0.1≤K1≤0.2. Therefore, by setting the ratio K1 between 0.1 and 0.2, it is possible to ensure the convenience and stability of the connection between the extraction electrode 50 and the protrusion 301, and at the same time, it is possible to simplify the setting of the protrusion 301 and prevent the width of the protrusion 301 from being too large.

[0057] like Figure 2 and Figure 4 As shown, in some embodiments of the present application, optionally, the conductive substrate 100 further includes a conductive strip 40, and the conductive strip 40 is respectively electrically connected to the two ends of the protrusion 301. Therefore, by providing the conductive strip 40 electrically connected to the two ends of the protrusion 301 on the conductive substrate 100, the two ends of the protrusion 301 can be electrically connected to each other, so as to appropriately share a part of the current for the protrusion 301, thereby preventing the current of the protrusion 301 from being too large.

[0058] It should be noted that the conductive bar 40 and the bus bar 30 may be made of the same material.

[0059] like Figure 1 , Figure 3 , Figure 5 , Figure 7 and Fig. 9As shown, in some embodiments of the present application, optionally, the two ends of the lead-out electrode 50 respectively have a first conductive portion 503 and a second conductive portion 504, the first conductive portion 503 is electrically connected to the protrusion 301, and the second conductive portion 504 is electrically connected to the external power supply, wherein the first conductive portion 503 and the second conductive portion 504 are respectively located on different surfaces of the lead-out electrode 50.

[0060] Thus, by respectively providing the first conductive portion 503 and the second conductive portion 504 at both ends of different surfaces of the extraction electrode 50, and the first conductive portion 503 and the second conductive portion 504 are respectively electrically connected to the protrusion 301 and the external power supply, the extraction electrode 50 has a bending resistance performance, one side of the first conductive portion 503 of the extraction electrode 50 is connected to the protrusion 301, and after bending, one side of the second conductive portion 504 of the extraction electrode 50 can be exposed, so that the second conductive portion 504 is electrically connected to the external power supply, so that the electrical connection can be formed more effectively and conveniently. That is, the extraction electrode 50 only needs to be bent, and the electrical connection can be formed without twisting it.

[0061] Furthermore, the first conductive part 503 can form a stable electrical connection with the protrusion 301 through a conductive adhesive (such as ACF), and the power line of the external power supply can be electrically connected to the second conductive part 504 by welding to achieve a stable electrical connection.

[0062] like Figure 1 , Figure 3 , Figure 5 , Figure 7 and Fig. 9 As shown, in the above-mentioned embodiment of the present application, optionally, the lead-out electrode 50 also has a third conductive part 505, a first insulating rubber layer 506 and a second insulating rubber layer 507, wherein the first conductive part 503 and the second conductive part 504 are electrically connected through the third conductive part 505, and the first insulating rubber layer 506 and the second insulating rubber layer 507 respectively cover different surfaces of the third conductive part 505.

[0063] Thus, the first conductive part 503 and the second conductive part 504 are electrically connected via the third conductive part 505, and the first insulating rubber layer 506 and the second insulating rubber layer 507 are provided to respectively cover different surfaces of the third conductive part 505 to prevent the third conductive part 505 from being exposed except for the first conductive part 503 and the second conductive part 504, thereby avoiding forming a conductive connection with other structures to affect the conductive performance of the lead-out electrode 50, and preventing the occurrence of short-circuit failures and the like.

[0064] It should be noted that when the extraction electrode 50 is bonded to the reflective substrate 70 , the first insulating adhesive layer 506 can be stably bonded to the reflective substrate 70 by adhesive.

[0065] like Fig.10 and Fig.11 As shown, an embodiment of the second aspect of the present application further provides a dimmable light device 600 , and the dimmable light device 600 includes a dimmable light layer 60 and two layers of the conductive substrate 100 in any of the above embodiments.

[0066] Specifically, the two layers of conductive substrate 100 are respectively a first conductive substrate 101 and a second conductive substrate 102, and the first conductive substrate 101 and the second conductive substrate 102 are respectively arranged on both sides of the dimmable layer 60. The first conductive substrate 101 includes a first bus bar 302, and the first bus bar 302 includes a first protrusion 3011, and the first protrusion 3011 is not covered by the dimmable layer 60. The second conductive substrate 102 includes a second bus bar 303, and the second bus bar 303 includes a second protrusion 3012, and the second protrusion 3012 is not covered by the dimmable layer 60. Among them, the first protrusion 3011 and the second protrusion 3012 are respectively located at both ends of the dimmable layer 60, and are symmetrically arranged with each other.

[0067] In this embodiment, optionally, the dimmable layer 60 is one or a combination of two or more of a liquid dimmable layer 60, a solid dimmable layer 60 or a sol dimmable layer 60. Preferably, the dimmable layer 60 is an electrochromic stacked layer, and the electrochromic stacked layer includes an ion storage layer, an electrolyte layer and an electrochromic layer stacked in sequence.

[0068] In an embodiment of the second aspect of the present application, a dimmable light layer 60 is provided between the conductive substrates 100 to form a dimmable light device 600, and a current or voltage is introduced between the two conductive substrates 100 through an external power supply to form an electric field on both sides of the dimmable light layer 60, thereby driving the dimmable light layer 60 to color or fade, that is, the dimmable light device 600 shows a change in transmittance in appearance, thereby achieving a transmittance adjustment effect on the scene where the dimmable light device 600 is applied; and through the provision of the bus bar 30, the efficiency of electrical conduction on the dimmable light device 600 is improved, thereby accelerating the efficiency of the device responding to color change, shortening the time required for transmittance adjustment, and improving the user experience.

[0069] The first bus bar 302 and the second bus bar 303 are respectively arranged on the first conductive substrate 101 and the second conductive substrate 102, and the first bus bar 302 and the second bus bar 303 are respectively provided with the first protrusion 3011 and the second protrusion 3012 which are not covered by the dimmable layer 60. In this way, the first bus bar 302 and the second bus bar 303 are electrically connected to the external power supply through the first protrusion 3011 and the second protrusion 3012, respectively, so as to form an electric field on both sides of the dimmable layer 60, thereby driving the dimmable layer 60 to be colored or faded, that is, the dimmable light device 600 shows a change in transmittance in appearance, thereby achieving the function of adjusting the transmittance of the scene where the dimmable light device 600 is applied.

[0070] Specifically, by providing a first protrusion 3011 and a second protrusion 3012 which are electrically connected to an external power source respectively, the driving voltage / current is transmitted to the transparent conductive layer 20, thereby forming a potential difference / electric field on both sides of the adjustable light layer 60, driving the embedding or extraction of ions or electrons in the adjustable light layer 60, so as to achieve a color change or fading effect, etc.

[0071] The first protrusion 3011 and the second protrusion 3012 are respectively disposed at two ends of the adjustable light layer 60 and are symmetrically disposed to each other, so as to improve the uniformity of electrical conduction.

[0072] like Fig.12 As shown, preferably, the first protrusion 3011 is located at the middle position of the first bus bar 302, and the second protrusion 3012 is located at the middle position of the second bus bar 303, so as to further improve the uniformity of electrical conduction.

[0073] like Fig.15 As shown, in the above embodiment of the present application, optionally, the first conductive substrate 101 further includes a first conductive strip 401, and the second conductive substrate 102 further includes a second conductive strip 402, the first conductive strip 401 is respectively connected to the two ends of the first protrusion 3011, and the second conductive strip 402 is respectively connected to the two ends of the second protrusion 3012.

[0074] In this embodiment, by providing a first conductive strip 401 connected to the two ends of the first protrusion 3011 on the first conductive substrate 101, and providing a second conductive strip 402 connected to the two ends of the second protrusion 3012 on the second conductive substrate 102, the two ends of the first protrusion 3011 and the second protrusion 3012 can be electrically connected to each other, so that a part of the current can be appropriately shared by the first protrusion 3011 and the second protrusion 3012, thereby preventing the current of the first protrusion 3011 and the second protrusion 3012 from being too large and causing damage to the dimmable layer 60, thereby improving the reliability and stability of the dimmable light device 600.

[0075] It should be noted that the first conductive strip 401 , the second conductive strip 402 , the first bus bar 302 , and the second bus bar 303 may all be made of the same material.

[0076] like Fig.11 , Fig.12 and Fig.15 As shown, in the above embodiment of the present application, optionally, the first bus bar 302 extends along the edge of the first conductive substrate 101 to form a first end 3021 , and the second bus bar 303 extends along the edge of the second conductive substrate 102 to form a second end 3031 close to the first end 3021 .

[0077] Specifically, the distance between the first end 3021 and the second end 3031 is D, the perimeter of the conductive substrate 100 is L1, and the relationship is satisfied: D / L1=K2, 0.01≤K2≤0.1;

[0078] The length of the first bus bar 302 or the second bus bar 303 is L2, which satisfies the relationship: L2 / L1=K3, 0.4≤K3≤0.5.

[0079] In this embodiment, the first bus bar 302 is extended along the edge of the first conductive substrate 101 to form a first end 3021, and the second bus bar 303 is extended along the edge of the second conductive substrate 102 to form a second end 3031 close to the first end 3021, so that there is a certain distance between the first end 3021 and the second end 3031, that is, the first bus bar 302 and the second bus bar 303 are an open-loop structure with non-full-circle silk screen printing (metal wires such as silver wire or copper wire).

[0080] When the spacing is too small, it is easy to cause tip discharge, causing the dimmable light layer 60 corresponding to the first end 3021 and the second end 3031 to be damaged and fail, affecting the color change effect of the dimmable light device 600. When the spacing is too large, the length of the corresponding bus bar 30 is too small, resulting in too low a rate of electrical conduction, which has limited effect on increasing the conductivity of the transparent conductive layer 20, thereby failing to fully increase the rate of electrical conduction, and failing to sufficiently improve the color change rate of the dimmable light device 600.

[0081] The distance between the first end 3021 and the second end 3031 is D, the circumference of the conductive substrate 100 is L1, and the length of the first bus bar 302 or the second bus bar 303 is L2. By setting the ratio K2 between 0.01 and 0.1, and the ratio K3 between 0.4 and 0.5, the distance between the first end 3021 and the second end 3031 and the length of the bus bar 30 are more appropriate, which can prevent the damage and failure of the dimmable light device 600 caused by the tip discharge, and can maximize the color change rate of the dimmable light device 600.

[0082] Preferably, when the first bus bar 302 and the second bus bar 303 are not full-circle screen-printed, the ratio K2 is between 0.01 and 0.04, and the distance between the first end 3021 and the second end 3031 is greater than 1 cm. More preferably, the distance between the first end 3021 and the second end 3031 is between 1 cm and 2 cm.

[0083] like Fig.13 and Fig.14 As shown, in the above embodiment of the present application, optionally, the first bus bar 302 extends along the edge of the first conductive substrate 101 to form a first closed structure 3022 , and the second bus bar 303 extends along the edge of the second conductive substrate 102 to form a second closed structure 3032 .

[0084] In this embodiment, the first bus bar 302 is extended along the edge of the first conductive substrate 101 to form a first closed structure 3022, and the second bus bar 303 is extended along the edge of the second conductive substrate 102 to form a second closed structure 3032, that is, the first bus bar 302 and the second bus bar 303 are a closed loop structure of a full circle of silk screen printing (silver wire or copper wire or other metal wire). In this way, the surface resistance of the transparent conductive layer 20 can be further reduced, and the rate of electrical conduction can be further improved, thereby further accelerating the color change rate of the adjustable light device 600, and can prevent the damage and failure of the adjustable light device 600 caused by the tip discharge.

[0085] like Fig.16 As shown, an embodiment of the third aspect of the present application further provides a rearview mirror 1000, which includes a reflective substrate 70, an adjustable light device 600 in any of the above embodiments, and a glass cover plate 80 stacked in sequence.

[0086] In this embodiment, by arranging the dimmable light device 600 between the reflective substrate 70 and the glass cover plate 80, the reflective substrate 70, the dimmable light device 600 and the glass cover plate 80 can be combined to form a rearview mirror 1000. The reflective substrate 70 and the glass cover plate 80 not only provide good protection for the dimmable light device 600, but the reflective substrate 70 can also reflect external light to form an image for display to the user, thereby realizing the function of the rearview mirror 1000.

[0087] Preferably, the reflective substrate 70 and the glass cover plate 80 may both be made of glass or other transparent materials.

[0088] like Fig.16 , Fig.17 and Fig.18 As shown, in the above embodiment of the present application, optionally, a reflective layer 701 is provided on a side of the reflective substrate 70 close to the adjustable light device 600 , and the reflective layer 701 is provided with an escape hole 7011 for escaping light.

[0089] In this embodiment, a reflective layer 701 is provided on the side of the reflective substrate 70 close to the dimmable light device 600, so that the external light is reflected by the reflective layer 701 to be displayed to the user as an image, thereby realizing the function of the rearview mirror 1000. By providing an avoidance hole 7011 for avoiding light on the reflective layer 701, a blind spot monitoring warning light can be provided on the side of the reflective substrate 70 away from the dimmable light device 600, corresponding to the position of the avoidance hole 7011. When the sensor senses that an object is approaching the blind spot, the controller controls the blind spot monitoring warning light to flash, and the flashing light of the blind spot monitoring warning light can be seen by the user on the side of the glass cover plate 80 through the avoidance hole 7011, which has the effect of reminding the user to pay attention to the safety of the blind spot, thereby improving driving safety.

[0090] like Fig.16 , Fig.17 and Fig.18 As shown, in the above-mentioned embodiment of the present application, optionally, the first conductive substrate 101 includes a first lead-out electrode 501, and the second conductive substrate 102 includes a second lead-out electrode 502, the first lead-out electrode 501 is respectively connected to the first protrusion 3011 and the positive power line of the external power supply, and the second lead-out electrode 502 is respectively connected to the second protrusion 3012 and the negative power line of the external power supply, and the first lead-out electrode 501 and the second lead-out electrode 502 are both bent toward the side of the reflective substrate 70 away from the dimmable light device 600, and are attached to the edge of the side of the reflective substrate 70 away from the dimmable light device 600.

[0091] In this embodiment, the first lead-out electrode 501 is provided to realize electrical connection between the first protrusion 3011 and the positive power line of the external power supply, and the second lead-out electrode 502 is provided to realize electrical connection between the second protrusion 3012 and the negative power line of the external power supply, so that the adjustable light device 600 can be more conveniently electrically connected to the external power supply.

[0092] Exemplarily, the first extraction electrode 501 and the positive power line can be connected by a soldering process, and the first extraction electrode 501 can form a stable electrical connection with the first protrusion 3011 by a conductive adhesive. The second extraction electrode 502 and the negative power line can be connected by a soldering process, and the second extraction electrode 502 can form a stable electrical connection with the second protrusion 3012 by a conductive adhesive.

[0093] Specifically, the first extraction electrode 501 and the second extraction electrode 502 are bent toward the side of the reflective substrate 70 away from the dimmable light device 600, and are attached to the edge of the side of the reflective substrate 70 away from the dimmable light device 600. The first extraction electrode 501 and the second extraction electrode 502 are both resistant to bending. In this way, the first extraction electrode 501 and the second extraction electrode 502 are attached to the outside of the reflective substrate 70. On the one hand, the first extraction electrode 501 and the second extraction electrode 502 cannot be seen through the outside of the glass cover plate 80, which improves the aesthetics of the rearview mirror 1000. On the other hand, by bending the first extraction electrode 501 and the second extraction electrode 502 to the outside of the reflective substrate 70, the electrical connection with the external wire of the rearview mirror 1000 can be more convenient, which improves the reliability and stability of the dimmable light device 600.

[0094] The first extraction electrode 501 and the second extraction electrode 502 are exposed outside the glass cover plate 80 and the reflective substrate 70, and the other parts of the adjustable light device 600 are covered by the glass cover plate 80 and the reflective substrate 70. The glass cover plate 80 is located at the upper layer, and the reflective substrate 70 is located at the lower layer to reflect the external light to form an image for display to the user. Exemplarily, the glass cover plate 80 is generally a transparent glass cover plate 80, and the reflective substrate 70 is a structure in which a reflective layer 701 is coated on a glass substrate.

[0095] like Fig.16 , Fig.17 and Fig.18 As shown, in the above-mentioned embodiment of the present application, optionally, a first adhesive layer 90 is provided at the connection between the first lead-out electrode 501 and the reflective substrate 70 and the positive power line, and a second adhesive layer 91 is provided at the connection between the second lead-out electrode 502 and the reflective substrate 70 and the negative power line.

[0096] In this embodiment, a first adhesive layer 90 is provided at the connection between the first extraction electrode 501, the reflective substrate 70 and the positive power line to cover the first extraction electrode 501 and the positive power line (connection), and a second adhesive layer 91 is provided at the connection between the second extraction electrode 502, the reflective substrate 70 and the negative power line to cover the second extraction electrode 502 and the negative power line (connection). In this way, the adhesion between the first extraction electrode 501, the positive power line and the reflective substrate 70 can be improved, and the adhesion between the second extraction electrode 502, the negative power line and the reflective substrate 70 can be improved, so as to prevent the occurrence of the situation that the conductive performance is affected by falling off, and improve the use stability and reliability of the adjustable light device 600. Exemplarily, the first adhesive layer 90 and the second adhesive layer 91 can both be UV light curing glue.

[0097] like Fig.16As shown, in the above-mentioned embodiment of the present application, optionally, a third adhesive layer 92 is provided between the reflective substrate 70 and the dimmable light device 600, a fourth adhesive layer 93 is provided between the glass cover plate 80 and the dimmable light device 600, a fifth adhesive layer 94 is provided in the circumference of the dimmable light device 600, and a shielding layer 95 is provided along the circumference of one side of the glass cover plate 80.

[0098] In this embodiment, by providing the third adhesive layer 92, the fourth adhesive layer 93 and the fifth adhesive layer 94, the third adhesive layer 92 and the fourth adhesive layer 93 sandwich the dimmable light device 600, and the fifth adhesive layer 94 is provided in the circumference of the dimmable light device 600, and forms an integral structure with the third adhesive layer 92 and the fourth adhesive layer 93, so as to completely cover the dimmable light device 600, thereby forming a more comprehensive seal for the dimmable light device 600, so as to more effectively block water and oxygen. The reflective substrate 70 and the glass cover plate 80 are respectively provided on the outer sides of the third adhesive layer 92 and the fourth adhesive layer 93, so that a more stable connection can be formed between the reflective substrate 70, the dimmable light device 600 and the glass cover plate 80, thereby improving the reliability and stability of the rearview mirror 1000.

[0099] Exemplarily, the third adhesive layer 92, the fourth adhesive layer 93 and the fifth adhesive layer 94 can all be hot melt adhesive made of polyvinyl butyral ester, or can be made of non-hot melt adhesive, such as OCA optical adhesive.

[0100] Specifically, a shielding layer 95 is provided along the circumference of one side of the glass cover plate 80. The shielding layer 95 can be provided on the outer side or the inner side of the glass cover plate 80 to shield the non-visible area (such as the bus bar 30) of the dimmable light device 600, so as to increase the aesthetics of the rearview mirror 1000. Exemplarily, the shielding layer 95 can be a chrome ring.

[0101] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0102] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0103] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A conductive substrate, characterized in that: include: basal layer; A transparent conductive layer, wherein the transparent conductive layer is stacked on the base layer; A bus bar is disposed on the transparent conductive layer, the bus bar has a protrusion, and the protrusion is used to be electrically connected to an external power source; A lead-out electrode, through which the protrusion is electrically connected to the external power source; The conductive substrate further comprises conductive strips, wherein the conductive strips are electrically connected to two ends of the protrusions respectively; The two ends of the extraction electrode respectively have a first conductive portion and a second conductive portion, the first conductive portion is electrically connected to the protruding portion, and the second conductive portion is electrically connected to the external power supply, wherein the first conductive portion and the second conductive portion are respectively located on different surfaces of the extraction electrode; The extraction electrode further comprises a third conductive portion, a first insulating adhesive layer and a second insulating adhesive layer, wherein the first conductive portion and the second conductive portion are electrically connected via the third conductive portion, and the first insulating adhesive layer and the second insulating adhesive layer respectively cover different surfaces of the third conductive portion; The width of the protruding portion is X, and the width of the connection between the lead-out electrode and the protruding portion is Y, satisfying the relationship: Y≤X.

2. The conductive substrate according to claim 1, characterized in that The width of the protruding portion is X, and the width of the connection between the lead-out electrode and the protruding portion is Y, satisfying the relationship: (XY) / X=K1, 0.1≤K1≤0.

2.

3. A dimmable light device, characterized in that: It comprises a dimmable layer and two conductive substrates according to any one of claims 1 to 2, wherein the two conductive substrates are respectively a first conductive substrate and a second conductive substrate, and the first conductive substrate and the second conductive substrate are respectively arranged on both sides of the dimmable layer; The first conductive substrate includes a first bus bar, the first bus bar includes a first protrusion, and the first protrusion is not covered by the adjustable light layer; The second conductive substrate includes a second bus bar, the second bus bar includes a second protrusion, and the second protrusion is not covered by the dimmable layer; Wherein, the first protruding portion and the second protruding portion are respectively located at two ends of the adjustable light layer and are symmetrically arranged with respect to each other.

4. The dimmable light device according to claim 3, characterized in that: The first conductive substrate further includes a first conductive strip, and the second conductive substrate further includes a second conductive strip. The first conductive strip is respectively connected to two ends of the first protrusion, and the second conductive strip is respectively connected to two ends of the second protrusion.

5. The dimmable light device according to claim 3, characterized in that: The first bus bar extends along the edge of the first conductive substrate to form a first end, the second bus bar extends along the edge of the second conductive substrate to form a second end close to the first end, the distance between the first end and the second end is D, the perimeter of the conductive substrate is L1, and the relationship is satisfied: D / L1=K2, 0.01≤K2≤0.1; The length of the first bus bar or the second bus bar is L2, satisfying the relationship: L2 / L1=K3, 0.4≤K3≤0.

5.

6. The dimmable light device according to claim 3, characterized in that: The first bus bar extends along an edge of the first conductive substrate to form a first closed structure, and the second bus bar extends along an edge of the second conductive substrate to form a second closed structure.

7. A rearview mirror, characterized in that: The invention comprises a reflective substrate, a dimmable light device according to any one of claims 3 to 6 and a glass cover plate which are stacked in sequence.

8. The rearview mirror according to claim 7, characterized in that: A reflective layer is provided on a side of the reflective substrate close to the dimmable light device, and the reflective layer is provided with an escape hole for escaping light.

9. The rearview mirror according to claim 7, characterized in that: The first conductive substrate includes a first lead-out electrode, and the second conductive substrate includes a second lead-out electrode. The first lead-out electrode is respectively connected to the first protrusion and the positive power line of the external power supply, and the second lead-out electrode is respectively connected to the second protrusion and the negative power line of the external power supply. The first lead-out electrode and the second lead-out electrode are both bent toward a side of the reflective substrate away from the dimmable light device, and are attached to an edge of a side of the reflective substrate away from the dimmable light device.

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