WO2024055644A1

WO2024055644A1 - Conductive substrate, dimmable device and rearview mirror

Info

Publication number: WO2024055644A1
Application number: PCT/CN2023/099109
Authority: WO
Inventors: 曹超月; 庄丽媜; 江姗姗
Original assignee: 光羿智能科技(苏州)有限公司
Priority date: 2022-09-14
Filing date: 2023-06-08
Publication date: 2024-03-21
Also published as: CN115390330A

Abstract

The present application relates to the technical field of electrochromism, and provides a conductive substrate, a dimmable device and a rearview mirror. The conductive substrate comprises a substrate layer, a transparent conductive layer, a bus bar and an extraction electrode. The transparent conductive layer is stacked on the substrate layer. The bus bar is arranged on the transparent conductive layer. The bus bar is provided with a protruding portion which is used for being electrically connected to an external power supply. The protruding portion is electrically connected to the external power supply by means of the extraction electrode. According to the conductive substrate provided by the present application, the transparent conductive layer is stacked on the substrate layer, and the bus bar is arranged on the transparent conductive layer, so that the surface resistance of the transparent conductive layer is reduced, the electrical conduction rate is accelerated. Moreover, the bus bar is directly arranged on the transparent conductive layer, so that the preparation process is simplified, the operation is convenient, and the process of mass production is facilitated. The bus bar is provided with the protruding portion, so that the protruding portion is electrically connected to the external power supply by means of the extraction electrode, and the preparation process is simplified.

Description

Conductive substrate, dimmable device and rearview mirror

Cross-references to related applications

This application claims priority for the Chinese patent application with application number 202211114039.7 and titled "A conductive substrate, dimmable device and rearview mirror" submitted to the State Intellectual Property Office of China on September 14, 2022. The entire content of this application is incorporated herein by reference.

Technical field

The present application relates to the field of electrochromic technology, and in particular to a conductive substrate, a dimmable device and a rearview mirror.

Background technique

Electrochromism refers to the reversible discoloration of materials under the action of an electric field. Electrochromism is essentially an electrochemical oxidation-reduction reaction. After the reaction, the material shows a reversible change in color in appearance. An electrochromic device refers to a device containing electrochromic materials, usually with a multi-layer stack, such as a first base layer, a first conductive layer, an electrochromic stack (electrochromic layer, electrolyte layer, ion storage layer) and The second conductive layer and the second base layer. Among them, the conductive layer usually uses indium tin oxide (Indium Tin Oxide, ITO) material, but the surface resistance of ITO is large, and electrical conduction takes a long time, especially for some areas with larger areas. For electrochromic devices, it takes a long time to achieve all the color changes and the color change rate is slow.

Some existing technologies reduce the surface resistance of ITO by depositing metal grids on the conductive layer. However, depositing metal grids on the conductive layer, that is, the surface of ITO, can easily damage the conductive layer and cause defects in the conductive layer, which will affect the process. The requirements are high and the operation is difficult, which is not conducive to mass production and industrialization.

Contents of the invention

In view of this, the purpose of this application is to overcome the deficiencies in the prior art. This application provides a conductive substrate, an adjustable light device and a rearview mirror.

A first aspect of the present application provides a conductive substrate, including: a base layer; a transparent conductive layer stacked on the base layer; a bus bar disposed on the transparent conductive layer, the bus bar The strip has a protruding portion, the protruding portion is used for electrical connection with an external power supply; the protruding portion is electrically connected with the external power supply through the lead-out electrode.

In the first aspect of the present application, by stacking a transparent conductive layer on the base layer and arranging the bus bar on the transparent conductive layer, this not only reduces the area resistance of the transparent conductive layer and speeds up the electrical conduction rate, but also , the bus bar is directly arranged on the transparent conductive layer, which simplifies the preparation process, facilitates operation, and is conducive to mass production process. The bus bar has a protruding portion, so that the protruding portion can be electrically connected to an external power source through the lead-out electrode, thereby simplifying the preparation process. Damage to the transparent conductive layer during the preparation of the metal mesh layer in the prior art is avoided, the occurrence of defects in the transparent conductive layer is prevented, and the reliability and stability of the conductive substrate are improved.

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

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

In some embodiments of the present application, the width of the protrusion is ≤K1≤0.2. Therefore, by setting the ratio K1 between 0.1 and 0.2, this can not only ensure the convenience and stability of the connection between the lead electrode and the protruding part, but also simplify the arrangement of the protruding part and prevent the protruding part from being too wide. big.

In some embodiments of the present application, the conductive base further includes conductive strips, and the conductive strips are electrically connected to both ends of the protruding part respectively. Therefore, by arranging conductive strips on the conductive base that are electrically connected to the two ends of the protruding part, the two ends of the protruding part can form a conductive electrical connection, so as to appropriately share a part of the current for the protruding part, thereby Prevent excessive current from the protruding part.

In some embodiments of the present application, both ends of the extraction electrode respectively have a first conductive part and a second conductive part, the first conductive part is electrically connected to the protruding part, and the second conductive part is electrically connected to the protruding part. The external power supply is electrically connected, wherein the first conductive part and the second conductive part are respectively located on different surfaces of the lead-out electrode. Therefore, by respectively providing the first conductive part and the second conductive part at both ends of different surfaces of the lead-out electrode, and the first conductive part and the second conductive part are electrically connected to the protruding part and the external power supply respectively, the lead-out electrode is resistant to bending Fold, and one side of the first conductive part of the lead-out electrode is connected to the protruding part. After bending, one side of the second conductive part of the lead-out electrode can be exposed, so that the second conductive part can be electrically connected to the external power supply, which can be formed more effectively and conveniently. Electrical connection. That is, it is only necessary to bend the lead-out electrode without twisting it to form an electrical connection.

In some embodiments of the present application, the extraction electrode further has a third conductive part, a first insulating glue layer and a second insulating glue layer, wherein the first conductive part and the second conductive part pass through the The third conductive part forms an electrical connection, and the first insulating glue layer and the second insulating glue 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 glue layer and the second insulating glue layer are provided to cover different surfaces of the third conductive part respectively to prevent the third conductive part from Parts other than the first conductive part and the second conductive part are exposed to avoid forming a conductive connection with other structures to affect the conductive performance of the extraction electrode, and to prevent short circuit failure and other situations.

In the second aspect of the present application, a tunable light device is also provided, which includes a tunable light layer and two layers of the conductive substrate described in any of the above embodiments. The two layers of the conductive substrate are respectively a first conductive substrate and a first conductive substrate. A second conductive substrate, the first conductive substrate and the second conductive substrate are respectively disposed on both sides of the dimmable layer; the first conductive substrate includes a first bus bar, and the first bus bar includes a first protruding part, the first protruding part is not covered by the dimmable layer; the second conductive substrate includes a second bus bar, and the second bus bar includes a second protruding part, so The second protruding part is not covered by the dimmable layer; wherein the first protruding part and the second protruding part are respectively located at two ends of the dimmable layer and are arranged symmetrically with each other.

In the second aspect of the present application, optionally, the tunable layer is one or a combination of two or more of a liquid tunable layer, a solid tunable layer or a sol tunable layer. Preferably, the tunable layer is an electrochromic stacked layer, and the electrochromic stacked layer includes an ion storage layer, an electrolyte layer and an electrochromic layer that are stacked in sequence. A tunable light device is formed by disposing a tunable light layer between conductive substrates. A current or voltage is introduced between the two conductive substrates through an external power source to form an electric field on both sides of the tunable light layer, thereby driving the tunable light layer to generate The coloring or fading phenomenon causes the dimmable device to show changes in light transmittance in appearance, thereby adjusting the light transmittance of the scene where the dimmable device is applied; and through the setting of bus bars, the The efficiency of electrical conduction on the dimmable light device speeds up the device's response to color change, shortens the time required for light transmittance adjustment, and improves the user experience. As a result, the first bus bar and the second bus bar are respectively provided 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 bus bar that is not covered by the dimmable layer. The protrusion and the second protrusion. In this way, the first bus bar and the second bus bar are electrically connected to the external power supply through the first protruding part and the second protruding part respectively, so as to form an electric field on both sides of the tunable layer, thereby driving the tunable layer to color or The fading phenomenon causes the dimmable device to show changes in light transmittance in appearance, thereby adjusting the light transmittance of the scene where the dimmable device is applied. By arranging the first protruding portion and the second protruding portion at both ends of the adjustable light layer and symmetrically disposing each other, the uniformity of electrical conduction is improved. Preferably, the first protruding portion is located at the middle position of the first bus bar, and the second protruding portion is located at the middle position of the second bus bar to further improve the uniformity of electrical conduction.

In some embodiments of the present application, the first conductive substrate further includes a first conductive strip, the second conductive substrate further includes a second conductive strip, and the first conductive strip is connected to the first protruding portion respectively. The two ends of the second conductive strip are connected to the two ends of the second protruding part respectively. Thus, by arranging first conductive strips respectively connected to both ends of the first protruding part on the first conductive base, and arranging second conductive strips respectively connected to both ends of the second protruding part on the second conductive base. , in this way, the two ends of the first protruding part and the second protruding part can form conductive electrical connections, so as to appropriately share a part of the current for the first protruding part and the second protruding part, thereby preventing the first protruding part from Excessive current in the first and second protruding parts may cause damage to the tunable layer, which improves the reliability and stability of the tunable device.

In some embodiments of the present application, the first bus bar extends along the edge of the first conductive base to form a first end, and the second bus bar extends along the edge of the second conductive base to form a connection with the second conductive base. The first end is close to the second end, the distance between the first end and the second end is D, the circumference of the conductive base 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. Thus, by connecting the first bus bar along the first The edge of the conductive base extends to form a first end, and the second bus bar extends along the edge of the second conductive base to form a second end that is close to the first end, so that the first end and the second end There is a certain spacing between them. When the spacing is too small, it is easy to cause tip discharge and cause damage to the tunable layer. When the spacing is too large, the length of the corresponding bus bar is too small, causing the electrical conduction rate to be too low. Wherein, the distance between the first end and the second end is D, the perimeter of the conductive substrate is L1, 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 is between 0.4 and 0.5, so that the distance between the first end and the second end and the length of the bus bar are more appropriate, which can not only prevent the damage and failure of the dimmable device due to tip discharge, but also It can maximize the color changing rate of dimmable devices. 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.

In some embodiments of the present application, the first bus bar extends along the edge of the first conductive base to form a first closed structure, and the second bus bar extends along the edge of the second conductive base to form a second Closed structure. Therefore, 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 transparent conductive The surface resistance of the layer further increases the rate of electrical conduction, thereby further accelerating the discoloration rate of the dimmable device, and preventing tip discharge from damaging the dimmable device.

In a third aspect of the present application, a rearview mirror is also provided, including a reflective substrate stacked in sequence, the dimmable device described in any of the above embodiments, and a glass cover. In the third aspect of the present application, by disposing a dimmable device between the reflective substrate and the glass cover, the reflective substrate, the dimmable device and the glass cover can be combined to form a rearview mirror. The reflective substrate and the glass cover can be combined to form a rearview mirror. Not only does it play a good role in protecting the dimmable device, but the reflective substrate can also reflect the outside light and display it to the user, thereby realizing the function of the rearview mirror.

In some embodiments of the present application, a reflective layer is provided on a side of the reflective substrate close to the dimmable device, and an escape hole is opened in the reflective layer to avoid light. Therefore, by arranging a reflective layer on the side of the reflective substrate close to the adjustable light device, the external light is reflected as an image and displayed to the user through the reflective layer, thereby realizing the function of the rearview mirror. By opening 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 device, corresponding to the position of the escape hole. When the sensor senses that an object is approaching in the blind area, the controller controls the blind area monitoring indicator light to flash. The flashing light of the blind area monitoring indicator light can be seen by the user located on the side of the glass cover through the avoidance hole, which has the effect of reminding the user to pay attention to the safety of the blind area. , improve driving safety.

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, and the first lead-out electrode is connected to the first protrusion and the first lead-out electrode respectively. The positive power supply line of the external power supply is connected, the second lead-out electrode is connected to the second protruding part and the negative power supply line of the external power supply respectively, and the first lead-out electrode and the second lead-out electrode both face The reflective substrate is away from the dimmable light One side of the device is bent and attached to the edge of the side of the reflective substrate away from the dimmable device. As a result, the first protruding portion is electrically connected to the positive power line of the external power supply by providing the first lead-out electrode, and the second protruding portion is electrically connected to the negative power line of the external power supply by being provided with the second lead-out electrode, so that it can be more Conveniently realize the electrical connection between the dimmable device and the external power supply. By bending the first lead-out electrode and the second lead-out electrode toward the side of the reflective substrate away from the dimmable device, and fitting them to the edge of the side of the reflective substrate away from the dimmable device, the first lead-out electrode and the second lead-out electrode are The second lead-out electrode is attached to the outside of the reflective substrate. On the one hand, the first lead-out electrode and the second lead-out electrode cannot be seen through the outside of the glass cover, which improves the aesthetics of the rearview mirror. On the other hand, by bending both the first lead-out electrode and the second lead-out electrode outside the reflective substrate, electrical connection with the external wires of the rearview mirror can be made more convenient, thereby improving the reliability of the dimmable device. and stability.

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 the second extraction electrode is connected to the reflective substrate and the positive power line. A second adhesive layer is provided at the connection point of the negative power cord. As a result, the first adhesive layer is provided at the connection between the first lead-out electrode, the reflective substrate and the positive power supply line, and the second adhesive layer is provided at the connection between the second lead-out electrode, the reflective substrate and the negative power supply line. The adhesive layer can improve the adhesion between the first lead-out electrode, the positive power supply line and the reflective substrate, and can improve the adhesion between the second lead-out electrode, the negative power supply line and the reflective substrate to prevent falling off and affecting the The occurrence of conductive performance improvements improves the stability and reliability of dimmable devices.

Compared with the existing technology, the beneficial effects of this application are: this application proposes a conductive substrate, a dimmable device and a rearview mirror, by stacking a transparent conductive layer on the base layer, and arranging the bus bar on the transparent conductive layer , This not only reduces the surface resistance of the transparent conductive layer and speeds up the rate of electrical conduction, but also places the bus bar directly on the transparent conductive layer, which simplifies the preparation process, facilitates operation, and is conducive to mass production processes. The bus bar has a protruding portion, so that the protruding portion can be electrically connected to an external power source through the lead-out electrode, thereby simplifying the preparation process. Damage to the transparent conductive layer during the preparation of the metal mesh layer in the prior art is avoided, the occurrence of defects in the transparent conductive layer is prevented, and the reliability and stability of the conductive substrate are improved.

In order to make the above objects, features and advantages of the present application more obvious and understandable, preferred embodiments are cited below and described in detail with reference to the attached drawings.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 shows a schematic diagram 1 of an implementation of a conductive substrate in some embodiments of the present application;

Figure 2 shows a schematic top view of the conductive substrate in Figure 1;

Figure 3 shows a schematic diagram 2 of an implementation of a conductive substrate in some embodiments of the present application;

Figure 4 shows a schematic top view of the conductive substrate in Figure 3;

Figure 5 shows a schematic diagram three of an implementation of a conductive substrate in some embodiments of the present application;

Figure 6 shows a schematic top view of the conductive substrate in Figure 5;

Figure 7 shows a schematic diagram 4 of an implementation of a conductive substrate in some embodiments of the present application;

Figure 8 shows a schematic top view of the conductive substrate in Figure 7;

Figure 9 shows a schematic structural diagram of the extraction electrode in some embodiments of the present application;

Figure 10 shows a schematic diagram 1 of an implementation of a dimmable device in some embodiments of the present application;

Figure 11 shows a schematic top view of the dimmable device in Figure 10;

Figure 12 shows the second schematic top view of the dimmable device in Figure 10;

Figure 13 shows a schematic diagram 2 of an implementation of a dimmable device in some embodiments of the present application;

Figure 14 shows a schematic top view of the dimmable device in Figure 13;

Figure 15 shows a top view schematic view three of the dimmable device in Figure 10;

Figure 16 shows a schematic diagram 1 of an implementation of a rearview mirror in some embodiments of the present application;

Figure 17 shows a schematic diagram 2 of an implementation of a rearview mirror in some embodiments of the present application;

Figure 18 shows a schematic diagram three of an implementation of a rearview mirror in some embodiments of the present application.

Description of main component symbols:

100-conductive substrate; 101-first conductive substrate; 102-second conductive substrate; 10-base layer; 20-transparent conductive layer; 30-bus bar; 301-protruding portion; 3011-first protruding portion; 3012 -The second protruding part; 302-the first bus bar; 3021-the first end; 3022-the first closed structure; 303-the second bus bar; 3031-the second end; 3032-the second closed structure; 40 -Conductive strip; 401-first conductive strip; 402-second conductive strip; 50-lead electrode; 501-first lead electrode; 502-second lead electrode; 503-first conductive part; 504-second conductive part ;505-The third conductive part; 506-The first insulating glue layer; 507-The second insulating glue layer; 600-Dimmable device; 60-Dimmable layer; 70-Reflective substrate; 701-Reflective layer; 7011- Avoidance hole; 80-glass cover; 90-first adhesive layer; 91-second adhesive layer; 92-third adhesive layer; 93-fourth adhesive layer; 94-fifth adhesive layer Adhesive layer; 95-shielding layer; 1000-rearview mirror.

Detailed ways

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application.

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly Connected to another component or possibly a centered component at the same time. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical,""horizontal,""left,""right" and similar expressions are used herein for illustrative purposes only.

In this application, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; 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 an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, "plurality" means two or more than two, unless otherwise explicitly and specifically limited.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the template is for the purpose of describing specific embodiments only and is not intended to limit the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in Figures 1 to 8, the first embodiment of the present application provides a conductive substrate 100, mainly related to the field of electrochromic rearview mirrors, which can be applied to an adjustable light device 600, thereby making the adjustable The optical device 600 is applied to the rearview mirror 1000 of the vehicle (such as the reflector, rearview mirror, etc. of the vehicle, such as a car, a truck, a bus, etc.).

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

The transparent conductive layer 20 is stacked on the base layer 10 , and the bus bar 30 is disposed on the transparent conductive layer 20 . The bus bar 30 has a protruding portion 301 , and the protruding portion 301 is used for electrical connection with an external power source. The protruding portion 301 is electrically connected to an external power source through the lead electrode 50 .

In the conductive substrate 100 provided by the embodiment of the present application, the transparent conductive layer 20 is stacked on the base layer 10 and the bus bars 30 are arranged on the transparent conductive layer 20. The arrangement method can be silk screen printing, which reduces the size of the transparent conductive layer 20. The surface resistance accelerates the rate of electrical conduction.

In addition, arranging the bus bar 30 directly on the transparent conductive layer 20 simplifies the preparation process, facilitates operation, and is conducive to mass production processes. The bus bar 30 has a protruding portion 301 so as to form an electrical connection with an external power supply through the protruding portion 301 through the lead-out electrode 50, thereby simplifying the manufacturing process. Damage to the transparent conductive layer during the preparation of the metal mesh layer in the prior art is avoided, the occurrence of defects in the transparent conductive layer is prevented, and the reliability and stability of the conductive substrate are improved.

As shown in Figures 6 and 8, in some embodiments of the present application, optionally, the width of the protruding portion 301 is X, and the width of the connection between the lead electrode 50 and the protruding portion 301 is is Y and satisfies the relationship: Y≤X. Therefore, by setting the width Y of the connection point between the lead 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 electrode 50 and the bus bar 30 is facilitated.

As shown in Figures 6 and 8, in some embodiments of the present application, optionally, the width of the protruding portion 301 is X, and the width of the connection between the lead electrode 50 and the protruding portion 301 is is Y, satisfying the relationship: (X-Y)/X=K1, 0.1≤K1≤0.2. Therefore, by setting the ratio K1 between 0.1 and 0.2, this can not only ensure the convenience and stability of the connection between the lead electrode 50 and the protruding portion 301, but also simplify the arrangement of the protruding portion 301 and prevent the protruding portion from being 301 width is too large.

As shown in FIGS. 2 and 4 , in some embodiments of the present application, optionally, the conductive substrate 100 further includes conductive strips 40 , and the conductive strips 40 are electrically connected to both ends of the protruding portion 301 respectively. connect. Therefore, by arranging conductive strips 40 on the conductive substrate 100 that are electrically connected to the two ends of the protruding part 301, the two ends of the protruding part 301 can form a conductive electrical connection, so as to appropriately form the protruding part 301. Share a part of the current to prevent excessive current in the protruding portion 301 .

It should be noted that the conductive strip 40 and the bus bar 30 can be made of the same material.

As shown in Figures 1, 3, 5, 7 and 9, in some embodiments of the present application, optionally, both ends of the extraction electrode 50 have first conductive parts 503 and second conductive parts respectively. part 504, the first conductive part 503 is electrically connected to the protruding part 301, and the second conductive part 504 is electrically connected to the external power supply, wherein the first conductive part 503 and the second conductive part 504 are electrically connected to the external power supply. The portions 504 are respectively located on different surfaces of the extraction electrode 50 .

As a result, the first conductive part 503 and the second conductive part 504 are respectively provided at both ends of different surfaces of the extraction electrode 50, and the first conductive part 503 and the second conductive part 504 are connected to the protruding part 301 and the external power supply respectively. connection, the extraction electrode 50 has bending resistance, one side of the first conductive part 503 of the extraction electrode 50 is connected to the protruding part 301, and after bending, one side of the second conductive part 504 of the extraction electrode 50 can be exposed to facilitate the second conduction. Part 504 is electrically connected to an external power source, so that the electrical connection can be formed more effectively and conveniently. That is, it is only necessary to bend the lead-out electrode 50 without twisting it to form an electrical connection.

Further, the first conductive part 503 can form a stable electrical connection with the protruding part 301 through conductive glue (such as ACF), and the power cord of the external power supply can be electrically connected to the second conductive part 504 by welding to achieve a stable electrical connection. .

As shown in Figures 1, 3, 5, 7 and 9, in the above-mentioned embodiment of the present application, optionally, the lead electrode 50 also has a third conductive part 505 and a first insulating glue layer 506 and a second insulating glue layer 507, wherein the first conductive part 503 and the second conductive part 504 form an electrical connection through the third conductive part 505, and,

The first insulating glue layer 506 and the second insulating glue layer 507 cover different portions of the third conductive portion 505 respectively. surface.

Thus, the first conductive part 503 and the second conductive part 504 are electrically connected through the third conductive part 505, and the first insulating glue layer 506 and the second insulating glue layer 507 are provided to respectively cover different surfaces of the third conductive part 505, This is to prevent parts of the third conductive part 505 other than the first conductive part 503 and the second conductive part 504 from being exposed, avoid forming conductive connections with other structures to affect the conductive performance of the lead electrode 50, and prevent short circuit failure and other situations.

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

As shown in Figures 10 and 11, the second embodiment of the present application also provides an adjustable light device 600. The adjustable light device 600 includes an adjustable light layer 60 and two layers of any of the above embodiments. Conductive substrate 100.

Specifically, the two conductive substrates 100 are respectively a first conductive substrate 101 and a second conductive substrate 102. The first conductive substrate 101 and the second conductive substrate 102 are respectively disposed on both sides of the dimmable layer 60. The first conductive substrate 101 includes a first bus bar 302 , the first bus bar 302 includes a first protruding portion 3011 , and the first protruding portion 3011 is not covered by the dimmable layer 60 . The second conductive substrate 102 includes a second bus bar 303 , the second bus bar 303 includes a second protruding portion 3012 , and the second protruding portion 3012 is not covered by the dimmable layer 60 . The first protruding portion 3011 and the second protruding portion 3012 are respectively located at both ends of the dimmable layer 60 and are arranged symmetrically with each other.

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

In the embodiment of the second aspect of the present application, the tunable light device 600 is formed by disposing the tunable light layer 60 between the conductive substrates 100, and a current or voltage is introduced between the two conductive substrates 100 through an external power source, so that the tunable light layer 60 is disposed between the conductive substrates 100. An electric field is formed on both sides of the light layer 60 , thereby driving the tunable layer 60 to color or fade, which causes the tunable device 600 to show a change in light transmittance in appearance, thereby realizing the application of the tunable device 600 . The adjustment effect of the light transmittance of the scene; and through the setting of the bus bar 30, the efficiency of the power conduction of the dimmable light device 600 is improved, thereby speeding up the efficiency of the device in responding to color changes and shortening the time required for light transmittance adjustment. Improved user experience.

By disposing the first bus bar 302 and the second bus bar 303 on the first conductive substrate 101 and the second conductive substrate 102 respectively, and the first bus bar 302 and the second bus bar 303 are respectively provided with the non-tunable layer 60 The first protruding portion 3011 and the second protruding portion 3012 are covered. 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 protruding part 3011 and the second protruding part 3012 respectively, so as to form an electric field on both sides of the tunable light layer 60 to drive the tunable light layer 60 . The light layer 60 is colored or faded, which causes the dimmable device 600 to show changes in light transmittance in appearance, thereby adjusting the light transmittance of the scene where the dimmable device 600 is applied.

Specifically, by providing the first protruding portion 3011 and the second protruding portion 3012 that are electrically connected to the external power supply respectively, the The driving voltage/current is conducted to the transparent conductive layer 20, thereby forming a potential difference/electric field on both sides of the tunable layer 60, driving the insertion or extraction of ions or electrons in the tunable layer 60 to achieve discoloration or fading effects.

By arranging the first protruding part 3011 and the second protruding part 3012 respectively at both ends of the dimmable layer 60 and disposing symmetrically with each other, the uniformity of electrical conduction is improved.

As shown in Figure 12, preferably, the first protruding portion 3011 is located at the middle position of the first bus bar 302, and the second protruding portion 3012 is located at the middle position of the second bus bar 303, so as to Further improve the uniformity of electrical conduction.

As shown in FIG. 15 , in the above-described embodiment of the present application, optionally, the first conductive substrate 101 further includes a first conductive strip 401 , the second conductive substrate 102 further includes a second conductive strip 402 , and the first conductive strip 401 The second conductive strips 402 are respectively connected to two ends of the first protruding part 3011, and the second conductive strips 402 are respectively connected to two ends of the second protruding part 3012.

In this embodiment, first conductive strips 401 respectively connected to both ends of the first protruding part 3011 are provided on the first conductive substrate 101, and first conductive strips 401 respectively connected to the second protruding parts 3012 are provided on the second conductive substrate 102. The second conductive strip 402 is connected at both ends, so that the two ends of the first protruding part 3011 and the second protruding part 3012 can form a conductive electrical connection, so as to appropriately connect the first protruding part 3011 and the second protruding part 3012. The output portion 3012 shares part of the current, thereby preventing excessive current from the first protruding portion 3011 and the second protruding portion 3012 from causing damage to the dimmable layer 60 , thereby improving the reliability of the dimmable device 600 . and stability.

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 can all be made of the same material.

As shown in FIGS. 11 , 12 and 15 , in the above-described embodiments 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 302 extends along the edge of the first conductive substrate 101 to form a first end 3021 . 303 extends along the edge of the second conductive substrate 102 to form a second end portion 3031 close to the first end portion 3021.

Specifically, 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 relationship is satisfied: D/L1=K2, 0.01≤K2≤0.1;

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

In this embodiment, the first end portion 3021 is formed by extending the first bus bar 302 along the edge of the first conductive substrate 101, and extending the second bus bar 303 along the edge of the second conductive substrate 102 to form a connection with the first end portion. The second end portion 3031 of the first end portion 3021 is close to each other, so that there is a certain distance between the first end portion 3021 and the second end portion 3031, that is, the first bus bar 302 and the second bus bar 303 are non-full-circle silk screen printing (silver wire or metal wire such as copper wire) open-loop structure.

When the distance is too small, it is easy to cause tip discharge, causing damage and failure of the tunable layer 60 corresponding to the first end 3021 and second end 3031 areas, affecting the color changing effect of the tunable device 600 . When the spacing is too large, the corresponding bus bar 30 The length is too small and the rate of electrical conduction is too small, so that the effect on increasing the conductivity of the transparent conductive layer 20 is limited, so that the rate of electrical conduction cannot be fully increased, and the color changing rate of the dimmable device 600 cannot be sufficiently large. improve.

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 is between 0.4 and 0.5, so that 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 tip discharge from affecting the dimmable light. The damage and failure of the device 600 can maximize the color changing rate of the dimmable device 600 .

Preferably, when the first bus bar 302 and the second bus bar 303 are non-full circle screen printing, 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.

As shown in FIGS. 13 and 14 , in the above-mentioned embodiments 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 first conductive substrate 101 . The edges of the two conductive substrates 102 extend to form a second closed structure 3032.

In this embodiment, the first closed structure 3022 is formed by extending the first bus bar 302 along the edge of the first conductive substrate 101, and the second closed structure is formed by extending the second bus bar 303 along the edge of the second conductive substrate 102. 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 (metal wires such as silver wires or copper wires). This can further reduce the surface resistance of the transparent conductive layer 20 and further increase the rate of electrical conduction, thereby further accelerating the discoloration rate of the tunable device 600 and preventing damage and failure of the tunable device 600 due to tip discharge.

As shown in Figure 16, the third embodiment of the present application also provides a rearview mirror 1000. The rearview mirror 1000 includes a reflective substrate 70 stacked in sequence, the adjustable light device 600 in any of the above embodiments, and Glass cover 80.

In this embodiment, by disposing the dimmable device 600 between the reflective substrate 70 and the glass cover 80 , the reflective substrate 70 , the dimmable device 600 and the glass cover 80 can be combined to form the rearview mirror 1000 . The reflective substrate 70 and the glass cover 80 not only play a good role in protecting the dimmable device 600, but the reflective substrate 70 can also reflect the external light and display it to the user, thereby realizing the function of the rearview mirror 1000.

Preferably, both the reflective substrate 70 and the glass cover 80 can be made of glass or other transparent materials.

As shown in Figures 16, 17 and 18, in the above-mentioned embodiments of the present application, optionally, a reflective layer 701 is provided on the side of the reflective substrate 70 close to the dimmable device 600, and the reflective layer 701 is provided with a hole for avoiding Light escape hole 7011.

In this embodiment, a reflective layer 701 is provided on the side of the reflective substrate 70 close to the adjustable light device 600 so that the external light is reflected as an image and displayed to the user through the reflective layer 701, thereby realizing the function of the rearview mirror 1000. By opening an escape hole 7011 for avoiding light on the reflective layer 701, a blind spot monitoring indicator light can be provided on the side of the reflective substrate 70 away from the dimmable device 600, corresponding to the position of the escape hole 7011. When the sensor senses that an object is approaching in the blind area, the controller controls the blind area monitoring indicator light to flash. The flashing light of the blind area monitoring indicator light can The avoidance hole 7011 is visible to the user located on the side of the glass cover 80 , which has the effect of reminding the user to pay attention to the safety of the blind area and improves driving safety.

As shown in Figures 16, 17 and 18, in the above-mentioned embodiments 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 501. Electrode 502, the first lead-out electrode 501 is connected to the first protruding part 3011 and the positive power line of the external power supply, and the second lead-out electrode 502 is respectively connected to the second protruding part 3012 and the positive power line of the external power supply. The negative power line of the external power supply is connected, 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 device 600, and are attached to the The edge of the reflective substrate 70 away from the dimmable device 600 .

In this embodiment, the first protruding part 3011 is electrically connected to the positive power line of the external power supply by disposing the first lead-out electrode 501, and the second protruding part 3012 is electrically connected to the negative power supply line of the external power supply by disposing the second lead-out electrode 502. The electrical connection between the dimmable device 600 and the external power supply can be realized more conveniently.

For example, the first lead-out electrode 501 and the positive power line can be connected through a soldering process, and the first lead-out electrode 501 can form a stable electrical connection with the first protruding portion 3011 through conductive glue. The second lead-out electrode 502 and the negative power supply line can be connected through a soldering process, and the second lead-out electrode 502 can form a stable electrical connection with the second protruding portion 3012 through conductive glue.

Specifically, the first lead-out electrode 501 and the second lead-out electrode 502 are bent toward the side of the reflective substrate 70 away from the dimmable device 600 and attached to the side of the reflective substrate 70 away from the dimmable device 600 edge. Among them, both the first lead-out electrode 501 and the second lead-out electrode 502 have bending resistance. 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 80, which improves the rear view. The beauty of the mirror is 1000. On the other hand, by bending both the first lead-out electrode 501 and the second lead-out electrode 502 outside the reflective substrate 70, electrical connection with the external wires of the rearview mirror 1000 can be made more convenient, thereby improving the efficiency of the dimmable device. 600 reliability and stability in use.

The first extraction electrode 501 and the second extraction electrode 502 leak out of the glass cover 80 and the reflective substrate 70 , and other parts of the dimmable device 600 are covered by the glass cover 80 and the reflective substrate 70 . The glass cover 80 is located on the upper layer, and the reflective substrate 70 is located on the lowermost layer to reflect external light and display it to the user. For example, the glass cover 80 is usually a transparent glass cover 80 , and the reflective substrate 70 is a structure in which a reflective layer 701 is coated on the glass substrate.

As shown in Figures 16, 17 and 18, in the above-mentioned embodiments of the present application, optionally, a first adhesive layer 90 is provided at the connection between the first lead-out electrode 501, the reflective substrate 70 and the positive power line. , 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.

In this embodiment, a third lead-out electrode 501 is provided at the connection point with the reflective substrate 70 and the positive power supply line. An adhesive layer 90 covers the first lead-out electrode 501 and the positive power line (connection), and a second adhesive layer 91 is provided at the connection between the second lead-out electrode 502, the reflective substrate 70 and the negative power line. , to cover the second lead-out electrode 502 and the negative power supply line (connection). In this way, the adhesion between the first lead-out electrode 501, the positive power supply line and the reflective substrate 70 can be improved, and the adhesion between the second lead-out electrode 502, the negative electrode power supply line and the reflective substrate 70 can be improved to prevent falling off. The occurrence of conditions that affect the conductive performance improves the stability and reliability of the dimmable device 600 . For example, both the first adhesive layer 90 and the second adhesive layer 91 may be UV light-curing adhesive.

As shown in FIG. 16 , in the above-described embodiment of the present application, optionally, a third adhesive layer 92 is provided between the reflective substrate 70 and the dimmable device 600 , and the glass cover 80 and the dimmable device 600 A fourth adhesive layer 93 is provided in between, a fifth adhesive layer 94 is provided in the circumferential direction of the dimmable device 600 , and a shielding layer 95 is provided in the circumferential direction of one side of the glass cover 80 .

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 can be sandwiched. In the dimming device 600, the fifth adhesive layer 94 is disposed in the circumferential direction of the dimmable device 600, and forms an integrated structure with the third adhesive layer 92 and the fourth adhesive layer 93 to achieve complete coverage of the adjustable The optical device 600 is thereby formed to form a more comprehensive seal on the dimmable light device 600 to more effectively block water and oxygen. A reflective substrate 70 and a glass cover 80 are respectively provided outside the third adhesive layer 92 and the fourth adhesive layer 93 , so that a closer formation can be formed between the reflective substrate 70 , the dimmable device 600 and the glass cover 80 . Stable connection improves the reliability and stability of the rearview mirror 1000.

For example, the third adhesive layer 92 , the fourth adhesive layer 93 and the fifth adhesive layer 94 may all be hot melt adhesive made of polyvinyl butyral ester. Of course, it can also be made of non-hot melt adhesive material, such as OCA optical adhesive.

Specifically, by providing the shielding layer 95 along the circumference of one side of the glass cover 80 , the shielding layer 95 can be disposed on the outside or inside of the glass cover 80 to block the non-visible area (such as the bus bar) of the dimmable device 600 30), to increase the aesthetics of the rearview mirror 1000. For example, the shielding layer 95 may be a chrome ring.

In all examples shown and described herein, any specific values are to be construed as illustrative only and not as limiting, and therefore other examples of the exemplary embodiments may have different values.

It should be noted that similar reference numerals and letters represent similar items in the following figures, therefore, once an item is defined in one figure, it does not need further definition and explanation in subsequent figures.

The above-described embodiments only express several implementation modes of the present application. The descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application.

Claims

A conductive substrate, characterized by including:

basal layer;

A transparent conductive layer, the transparent conductive layer is stacked on the base layer;

A bus bar is provided on the transparent conductive layer, the bus bar has a protruding portion, and the protruding portion is used for electrical connection with an external power source;

Leading out electrodes, the protruding part is electrically connected to the external power supply through the drawing out electrodes.
The conductive substrate according to claim 1, wherein 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.
The conductive substrate according to claim 1, wherein the width of the protruding part is X, the width of the connection between the lead-out electrode and the protruding part is Y, and satisfies the relationship: X=K1, 0.1≤K1≤0.2.
The conductive substrate according to claim 1, wherein the conductive substrate further includes conductive strips, and the conductive strips are electrically connected to both ends of the protruding portion.
The conductive substrate according to claim 1, wherein the two ends of the lead-out electrode respectively have a first conductive part and a second conductive part, and the first conductive part is electrically connected to the protruding part, and the The second conductive part is electrically connected to the external power supply, wherein the first conductive part and the second conductive part are respectively located on different surfaces of the lead-out electrode.
The conductive substrate according to claim 5, characterized in that the lead-out electrode further has a third conductive part, a first insulating glue layer and a second insulating glue layer, wherein the first conductive part and the second insulating glue layer The conductive part forms an electrical connection through the third conductive part, and the first insulating glue layer and the second insulating glue layer respectively cover different surfaces of the third conductive part.
A tunable light device, characterized in that it includes a tunable light layer and two layers of the conductive substrate according to any one of claims 1 to 6, and the two layers of the conductive substrate are respectively a first conductive substrate and a second conductive substrate. A conductive substrate, the first conductive substrate and the second conductive substrate are respectively disposed 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 dimmable layer;

The second conductive substrate includes a second bus bar, the second bus bar includes a second protruding portion, the second protruding portion is not covered by the dimmable layer;

Wherein, the first protruding part and the second protruding part are respectively located at two ends of the dimmable layer, and are arranged symmetrically with each other.
The tunable light device according to claim 7, wherein the first conductive substrate further comprises a first conductive substrate. Electric strips, the second conductive base further includes second conductive strips, the first conductive strips are respectively connected to both ends of the first protrusion, and the second conductive strips are respectively connected to the second protrusions. Connect both ends of the part.
The dimmable device according to claim 7, wherein the first bus bar extends along an edge of the first conductive substrate to form a first end portion, and the second bus bar extends along the edge of the second conductive substrate. The edge of the base extends to form a second end close to the first end, the distance between the first end and the second end is D, and the perimeter of the conductive base is L1, Satisfy the relationship: D/L1=K2, 0.01≤K2≤0.1;

The length of the first bus bar or the second bus bar is L2 and satisfies the relationship: L2/L1=K3, 0.4≤K3≤0.5.
The dimmable device according to claim 7, wherein 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. The edge of the base extends to form a second closed structure.
A rearview mirror, characterized in that it includes a reflective substrate, the dimmable device according to any one of claims 7 to 10, and a glass cover plate laminated in sequence.
The rearview mirror according to claim 11, characterized in that a reflective layer is provided on the side of the reflective substrate close to the adjustable light device, and the reflective layer is provided with an escape hole for avoiding light.
The rearview mirror of claim 11, wherein the first conductive substrate includes a first lead-out electrode, the second conductive substrate includes a second lead-out electrode, and the first lead-out electrode is connected to the third lead-out electrode respectively. A protruding part is connected to the positive power line of the external power supply, the second lead-out electrode is connected to the second protrusion part and the negative power line of the external power supply respectively, the first lead-out electrode and the The second lead-out electrodes are all bent toward the side of the reflective substrate away from the dimmable device, and are attached to the edge of the side of the reflective substrate away from the dimmable device.