CN115793340B - Electrochromic device, electrochromic glass and rearview mirror - Google Patents
Electrochromic device, electrochromic glass and rearview mirror Download PDFInfo
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- CN115793340B CN115793340B CN202211715384.6A CN202211715384A CN115793340B CN 115793340 B CN115793340 B CN 115793340B CN 202211715384 A CN202211715384 A CN 202211715384A CN 115793340 B CN115793340 B CN 115793340B
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- 239000011521 glass Substances 0.000 title claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 345
- 238000000605 extraction Methods 0.000 claims abstract description 246
- 239000000758 substrate Substances 0.000 claims abstract description 135
- 230000001681 protective effect Effects 0.000 claims abstract description 128
- 239000012790 adhesive layer Substances 0.000 claims abstract description 125
- 239000000565 sealant Substances 0.000 claims abstract description 108
- 239000003292 glue Substances 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000012945 sealing adhesive Substances 0.000 claims description 29
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 description 18
- 238000010008 shearing Methods 0.000 description 15
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 238000010309 melting process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
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- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
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Abstract
The invention provides an electrochromic device, electrochromic glass and a rearview mirror, and relates to the technical field of electrochromic. The electrochromic device comprises a first conductive substrate layer, an electrochromic medium layer, a second conductive substrate layer, a sealing glue layer, a first extraction electrode, a first protection glue layer, a second extraction electrode and a second protection glue layer. The sealant layer is positioned on the circumference of the electrochromic medium layer; the first extraction electrode is provided with a first end close to the electrochromic medium layer and a second end far away from the electrochromic medium layer, the first end of the first extraction electrode is arranged on the first conductive basal layer, and the second end of the first extraction electrode at least partially penetrates through the sealant layer; the first protective adhesive layer is at least partially arranged on the first conductive substrate layer and at least partially covers the first end of the first extraction electrode. The electrochromic device provided by the invention effectively prevents the first extraction electrode and the second extraction electrode from falling off or being misplaced and disconnected, and improves the stability and reliability of electrical connection.
Description
Technical Field
The application relates to the technical field of electrochromic, in particular to an electrochromic device, electrochromic glass and a rearview mirror.
Background
The electrochromic technology is a technology for enabling an electrochromic material to be colored or discolored under the action of external voltage, and a device containing the electrochromic material is an electrochromic device. Typically, the electrochromic device needs to be powered by an external power source to develop a voltage across the electrochromic device. In the related art, an extraction electrode is provided on a conductive base layer of an electrochromic device, so that the electrochromic device is electrically connected to a power line of an external power source through the extraction electrode. However, how to prevent the extraction electrode from falling off from the conductive substrate layer of the electrochromic device so as to ensure stable electrical connection between the external power source and the electrochromic device is a technical problem to be solved in the art.
Disclosure of Invention
In view of the above, the present application provides an electrochromic device, electrochromic glass and rearview mirror to overcome the defects in the prior art.
A first aspect of the present application provides an electrochromic device comprising: the first conductive substrate layer, the electrochromic medium layer and the second conductive substrate layer are sequentially stacked; a sealant layer located circumferentially of the electrochromic medium layer; a first extraction electrode having a first end proximal to the electrochromic medium layer and a second end distal to the electrochromic medium layer, wherein the first end of the first extraction electrode is disposed on the first conductive substrate layer, the second end of the first extraction electrode at least partially passing through the sealant layer; the first protective adhesive layer is at least partially arranged on the first conductive substrate layer and at least partially covers the first end of the first extraction electrode; a second extraction electrode having a third end proximal to the electrochromic medium layer and a fourth end distal to the electrochromic medium layer, wherein the third end of the second extraction electrode is disposed on the second conductive base layer, the fourth end of the second extraction electrode passing at least partially through the sealant layer; and a second protective adhesive layer at least partially disposed on the second conductive substrate layer and at least partially covering the third end of the second extraction electrode.
In a first aspect of the application, the first conductive base layer is electrically connected to an external power source through the first extraction electrode by disposing the first end of the first extraction electrode on the first conductive base layer, and the second conductive base layer is electrically connected to the external power source through the second extraction electrode by disposing the third end of the second extraction electrode on the second conductive base layer. Through setting up the first protective glue film that at least part covers the first end of first extraction electrode on first conducting basal layer, can form the guard action to first extraction electrode through protecting first protective glue film, prevent that external pulling force from making the first extraction electrode drop or dislocation break off the emergence of the condition such as the condition on first conducting basal layer, promote stability and the reliability of electric connection between first extraction electrode and the first conducting basal layer. Through setting up the second protection glue film of the third end of at least partly covering second extraction electrode on the second conducting basal layer, can form the guard action to second extraction electrode through protecting second protection glue film, prevent the circumstances such as external pulling force makes second extraction electrode drop or dislocation disconnection from the second conducting basal layer, promote the stability and the reliability of electric connection between second extraction electrode and the second conducting basal layer.
Optionally, the sealant layer is located circumferentially between the first and second conductive substrate layers. Preferably, the sealant layer is located in a circumferential direction outside the first conductive base layer and the second conductive base layer. Therefore, the sealant layer can be arranged along the circumference of the electrochromic medium layer to form a seal on the electrochromic medium layer, prevent the invasion of external water oxygen and the like, and prolong the service life and the service reliability of the electrochromic device.
Optionally, the electrochromic medium layer is one or a combination of more than two of liquid electrochromic medium, solid electrochromic medium or sol electrochromic medium. Preferably, the electrochromic medium layer is an electrochromic stack layer, and the electrochromic stack layer comprises an ion storage layer, an electrolyte layer and an electrochromic layer which are sequentially stacked. An electrochromic medium layer is arranged between the first conductive substrate layer and the second conductive substrate layer to form an electrochromic device, and current or voltage is introduced between the first conductive substrate layer and the second conductive substrate layer through an external power supply to form electric fields on two sides of the electrochromic medium layer, so that the electrochromic medium layer is driven to be colored or discolored, namely, the electrochromic device shows change of light transmittance in appearance, and the effect of adjusting the light transmittance of a scene applying the electrochromic device is achieved.
In addition, the electrochromic device according to the application may also have the following additional technical features:
In some embodiments of the application, the first protective glue layer extends over the first extraction electrode to at least partially pass through the sealant layer and is located between the first extraction electrode and the sealant layer; and/or the second protective glue layer extends over the second extraction electrode to at least partially pass through the sealant layer and is located between the second extraction electrode and the sealant layer. Optionally, one side of the first protective adhesive layer is contacted with the sealant layer, and the other side of the first protective adhesive layer is contacted with the first extraction electrode; and/or one side of the second protective adhesive layer is contacted with the sealing adhesive layer, and the other side of the second protective adhesive layer is contacted with the second extraction electrode. Under the condition, the protection adhesive layer can be positioned between the sealing adhesive layer and the extraction electrode, so that the contact area between the sealing adhesive layer and the extraction electrode is reduced, the binding force between the sealing adhesive layer and the extraction electrode is reduced, and especially, the shearing acting force generated on the extraction electrode when the sealing adhesive layer flows can be sufficiently reduced in the processes of pressurizing, heating and the like, so that the extraction electrode is more effectively and comprehensively protected, the occurrence of the conditions of dislocation disconnection or falling and the like between the extraction electrode and the conductive substrate layer is more effectively avoided, and the electrical connection stability and the use reliability of the electrochromic device are improved.
Preferably, at least one of the first protective adhesive layer and the second protective adhesive layer has a viscosity less than that of the sealant layer under a preset temperature and a preset pressure. Under the preset temperature and pressure conditions, the viscosity of the protective adhesive layer is smaller than that of the sealing adhesive layer, and the protective adhesive layer has better fluidity than the sealing adhesive layer. Therefore, the protective adhesive layer is arranged between the extraction electrode and the sealant layer, the fluidity of the protective adhesive layer is better than that of the sealant layer under the high-temperature and high-pressure processing condition, so that the lubricating effect can be achieved, the shearing acting force generated on the extraction electrode when the sealant layer flows is effectively reduced, the extraction electrode is effectively prevented from being displaced, the protection effect on the extraction electrode is improved, the occurrence of the conditions of dislocation disconnection and the like between the extraction electrode and the conductive substrate layer is prevented, the stability and the reliability of the electrical connection between the extraction electrode and the conductive substrate layer are further improved, and the stability and the reliability of the electrical connection of an electrochromic device are improved.
In some embodiments of the present application, at least one of the first protective adhesive layer and the second protective adhesive layer has a viscosity of V 1 and the sealant layer has a viscosity of V 2; wherein the following relationship is satisfied between the V 1 and the V 2: v 1/V2＝K1,0＜K1 is less than or equal to 0.1. Preferably, the ratio K 1 is between 0 and 0.005, i.e. 0 < K 1.ltoreq.0.005. Therefore, the viscosity of the protective adhesive layer can be further ensured to be smaller than that of the sealing adhesive layer under the preset temperature and preset pressure processing conditions by setting the ratio K 1 within a specific range, so that the mobility of the protective adhesive layer is ensured to be better than that of the sealing adhesive layer under the preset temperature and preset pressure processing conditions, the lubricating effect is achieved, and the shearing acting force on the extraction electrode when the sealing adhesive layer flows is effectively reduced.
In some embodiments of the application, at least a portion of the second end of the first extraction electrode and the fourth end of the second extraction electrode pass through the sealant layer and are located within the sealant layer. Therefore, the second end of the first extraction electrode and/or the fourth end of the second extraction electrode are/is arranged in the sealant layer, so that the connection between the first extraction electrode and the first conductive substrate layer and the connection between the second extraction electrode and the second conductive substrate layer and the connection between the second extraction electrode and the power wire of the external power supply can be better protected, and the stability and reliability of the electrical connection between the first extraction electrode and the first conductive substrate layer and the connection between the second extraction electrode and the power wire of the external power supply can be improved.
In some embodiments of the application, at least one of the second end of the first extraction electrode and the fourth end of the second extraction electrode passes completely through the sealant layer to be exposed outside the sealant layer. Therefore, the second end of the first extraction electrode and/or the fourth end of the second extraction electrode completely penetrate through the sealant layer, so that the second end of the first extraction electrode and/or the fourth end of the second extraction electrode are exposed outside the sealant layer, and electric connection between the first extraction electrode and an external power supply is facilitated, and voltage, current or the like is provided for the electrochromic device.
In some embodiments of the application, at least a portion of the first protective glue layer and the second protective glue layer pass through the sealant layer and are located within the sealant layer. Therefore, the protective adhesive layer does not penetrate through the sealant layer, so that the shearing acting force generated on the extraction electrode when the sealant layer flows can be reduced, the movement of the extraction electrode is reduced, a good anti-breaking effect is achieved, and meanwhile, the sealant layer has good continuity and better sealing performance.
In some embodiments of the present application, the first protective glue layer has a length L 1 between the first extraction electrode and the sealant layer, and the sealant layer has a length L 2; wherein the following relationship is satisfied between the L 1 and the L 2: l 1/L2＝K2,0＜K2 is less than or equal to 1, preferably 0.1 is less than or equal to K 2 is less than or equal to 0.9; and/or the length of the second protective adhesive layer between the second extraction electrode and the sealant layer is L 1, and the length of the sealant layer is L 2, where the following relation is satisfied between L 1 and L 2: l 1/L2＝K2,0＜K2 is less than or equal to 1, preferably 0.1 is less than or equal to K 2 is less than or equal to 0.9. Therefore, by setting the ratio K 2 between 0 and 1, especially between 0.1 and 0.9, the shearing acting force on the extraction electrode when the sealant layer flows can be reduced, the movement of the extraction electrode is reduced, a good anti-breaking effect is achieved, and meanwhile, the sealant layer can be guaranteed to have good continuity and sealing performance.
In some embodiments of the application, the first protective glue layer completely covers the first end of the extraction electrode and/or the second protective glue layer completely covers the third end of the second extraction electrode. Therefore, the protection glue layer completely covers one end of the extraction electrode to form comprehensive protection for the extraction electrode, so that the stability of connection between the extraction electrode and the conductive basal layer is enhanced.
In other embodiments, the first protective glue layer partially covers the first end of the first extraction electrode and/or the second protective glue layer partially covers the third end of the second extraction electrode. Thus, the protection of the extraction electrode can be also formed by partially covering one end of the extraction electrode with the protective adhesive layer, and the stability of the connection between the extraction electrode and the conductive underlayer can be enhanced.
In some embodiments of the application, the electrochromic device further comprises a first conductive glue layer located between the first end of the first extraction electrode and the first conductive base layer, and the melting temperature of the first conductive glue layer is higher than the melting temperature of the sealing glue layer; and/or a second conductive adhesive layer, the second conductive adhesive layer is located between the third end of the second extraction electrode and the second conductive substrate layer, and the melting temperature of the second conductive adhesive layer is higher than the melting temperature of the sealing adhesive layer. Therefore, the conductive adhesive layer is arranged between the extraction electrode and the conductive substrate layer, so that the extraction electrode is stably and electrically connected with the conductive substrate layer through the conductive adhesive layer, and the melting temperature of the conductive adhesive layer is higher than that of the sealing adhesive layer, so that even if the sealing adhesive layer is melted, the conductive adhesive layer with higher melting temperature can still keep stable bonding performance, so that the extraction electrode is stably and electrically connected with the conductive substrate layer, the extraction electrode is displaced by the shearing acting force generated on the extraction electrode when the sealing adhesive layer flows, the protection effect on the extraction electrode is improved, the occurrence of the conditions of dislocation disconnection and the like between the extraction electrode and the conductive substrate layer is prevented, the stability and the reliability of the electrical connection between the extraction electrode and the conductive substrate layer are further improved, and the stability and the reliability of the electrical connection of an electrochromic device are further improved.
In some embodiments of the present application, the sealant layer is made of an ultraviolet light curing adhesive. Under normal conditions, the ultraviolet light curing adhesive does not need to adopt a hot melting process, and the hot melting process is not required to be adopted to act on the sealing adhesive layer in the process of preparing the electrochromic device by enabling the sealing adhesive layer to be ultraviolet light curing adhesive, so that the conductive adhesive layer does not need to bear a high-temperature or high-pressure hot melting process, the conductive adhesive layer can keep stable bonding performance, stable electric connection between the extraction electrode and the conductive substrate layer is kept, and dislocation disconnection and other conditions between the extraction electrode and the conductive substrate layer are effectively prevented.
In some embodiments of the present application, the viscosity of the sealant layer is not greater than 5000cps under preset temperature and preset pressure conditions. Therefore, the fluidity of the sealant layer is relatively smaller, the shearing acting force generated on the extraction electrode when the sealant layer flows is effectively reduced, the extraction electrode is effectively prevented from being displaced, the protection effect on the extraction electrode is improved, the occurrence of the conditions of dislocation disconnection and the like between the extraction electrode and the conductive substrate layer is prevented, the stability and the reliability of electric connection between the extraction electrode and the conductive substrate layer are further improved, and the stability and the reliability of electric connection of an electrochromic device are further improved.
In a second aspect of the present application, there is further provided an electrochromic glass, including a first substrate, a second substrate, and the electrochromic device described in any of the foregoing embodiments, where the first substrate is disposed on a side of the first conductive base layer away from the electrochromic medium layer, the second substrate is disposed on a side of the second conductive base layer away from the electrochromic medium layer, and the sealant layer is located in a circumferential direction between the first substrate and the second substrate.
In the second aspect of the present application, by disposing an electrochromic device between a first substrate and a second substrate, the first substrate, the electrochromic device, and the second substrate can be combined to form electrochromic glass, and the first substrate and the second substrate exert a good protective effect on the electrochromic device. Through setting up the sealant layer at the circumference between first base plate and the second base plate to realize the sealing function to electrochromic device, effectively separation external steam produces the influence to electrochromic device's function, has promoted electrochromic device's stability in use and reliability.
In some embodiments of the application, the first protective glue layer extends over the first extraction electrode and is located between the first extraction electrode and the second substrate; and/or the second protective adhesive layer extends on the second extraction electrode and is positioned between the second extraction electrode and the first substrate. Optionally, one side of the first protective adhesive layer is contacted with the second substrate, and the other side is contacted with the first extraction electrode; and/or one side of the second protective adhesive layer is contacted with the first substrate, and the other side of the second protective adhesive layer is contacted with the second extraction electrode. Therefore, the protective adhesive layer is arranged between the substrate and the extraction electrode, so that the sealing adhesive layer between the extraction electrode and the substrate can be completely replaced by the protective adhesive layer, and the sealing adhesive layer is positioned on two side surfaces of the protective adhesive layer and the extraction electrode.
In some embodiments of the present application, a cross-sectional area of a side of the first protective adhesive layer away from the first extraction electrode is smaller than a cross-sectional area of a side of the first protective adhesive layer away from the second substrate; and/or the cross section area of one side of the second protective adhesive layer away from the second leading-out electrode is smaller than the cross section area of one side of the second protective adhesive layer away from the first substrate. Therefore, the sectional area of one side of the protective adhesive layer, which is far away from the extraction electrode, is smaller than the sectional area of one side of the protective adhesive layer, which is far away from the substrate, so that a better fixing effect can be formed on the protective adhesive layer through the sealing adhesive layer, the contact area between the protective adhesive layer and the substrate can be reduced, and the overall aesthetic property of the rearview mirror is improved. Meanwhile, the contact area of the protective adhesive layer and the sealant layer can be increased, and the bonding stability between the protective adhesive layer and the sealant layer is improved, so that the bonding stability and the sealing performance of electrochromic glass are improved.
In a third aspect the application also provides a rear view mirror comprising a reflective coating and an electrochromic glazing as described above, wherein the reflective coating is located on the first substrate or the second substrate. Preferably, the reflective coating is located on the second substrate and the second substrate is located on a side remote from an external observer.
In the third aspect of the application, by arranging the reflective coating on the substrate of the electrochromic glass, the electrochromic glass and the reflective coating can be combined to form the rearview mirror, the substrate of the electrochromic glass not only has a good protection effect on the electrochromic device, but also can reflect and image external light to display the external light to a user, thereby realizing the function of the rearview mirror, and the anti-dazzling effect of the rearview mirror can be realized by utilizing the color change phenomenon of the electrochromic device.
Compared with the prior art, the application has the beneficial effects that: the application provides an electrochromic device, electrochromic glass and a rearview mirror. Through setting up the protection glue film of at least partly covering the one end of extraction electrode on the conducting basal layer, can form the guard action to the one end of extraction electrode through the protection glue film, prevent the external pulling force and make the one end of extraction electrode drop or dislocation emergence such as break off from the conducting basal layer, promote the stability and the reliability of electric connection between extraction electrode and the conducting basal layer.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic diagram I of one implementation of an electrochromic device in some embodiments of the application;
FIG. 2 shows a schematic top view of the electrochromic device of FIG. 1;
FIG. 3 shows a second schematic top view of the electrochromic device of FIG. 1;
FIG. 4 shows a schematic diagram II of one implementation of an electrochromic device in some embodiments of the application;
FIG. 5 shows a schematic top view of the electrochromic device of FIG. 4;
FIG. 6 illustrates a schematic diagram III of one implementation of an electrochromic device in some embodiments of the application;
FIG. 7 shows a schematic of one implementation of electrochromic glazing in some embodiments of the application;
FIG. 8 shows a schematic diagram I of one implementation of a rearview mirror in some embodiments of the application;
FIG. 9 shows a schematic diagram II of one implementation of a rearview mirror in some embodiments of the application;
FIG. 10 shows a schematic side view of the rearview mirror of FIG. 9;
fig. 11 shows a second schematic side view of the rear view mirror of fig. 9.
Description of main reference numerals:
100-electrochromic devices; 110-a first conductive base layer; 120-electrochromic medium layer; 130-a second conductive base layer; 140, a sealant layer; 150-a first extraction electrode; 160-a first protective adhesive layer; 170-a second extraction electrode; 180-a second protective adhesive layer; 190-a first conductive adhesive layer; 191-a second conductive adhesive layer; 200-electrochromic glass; 210-a first substrate; 220-a second substrate; 1000-rearview mirror; 300-reflective coating.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
It will be understood 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 referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. 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 the like are used herein for illustrative purposes only.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 6, the embodiment of the first aspect of the present application provides an electrochromic device 100 mainly applied to electrochromic glass 200, and electrochromic glass 200 is mainly applied to rearview mirror 1000, and thus electrochromic device 100 is applied to rearview mirror 1000 of a vehicle (e.g., a mirror of a vehicle such as an automobile, a truck, a bus, rearview mirror 1000, etc.).
The electrochromic device 100 includes a first conductive substrate layer 110, an electrochromic medium layer 120, a second conductive substrate layer 130, and a sealant layer 140, a first extraction electrode 150, a first protective adhesive layer 160, a second extraction electrode 170, and a second protective adhesive layer 180, which are sequentially stacked.
The sealant layer 140 is located in the circumferential direction of the electrochromic medium layer 120. The first extraction electrode 150 has a first end proximate to the electrochromic medium layer 120 and a second end distal to the electrochromic medium layer 120, wherein the first end of the first extraction electrode 150 is disposed on the first conductive substrate layer 110, and the second end of the first extraction electrode 150 at least partially passes through the sealant layer 140. The first protective adhesive layer 160 is at least partially disposed on the first conductive substrate layer 110 and at least partially covers the first end of the first extraction electrode 150.
The second extraction electrode 170 has a third end near the electrochromic medium layer 120 and a fourth end far from the electrochromic medium layer 120, wherein the third end of the second extraction electrode 170 is disposed on the second conductive base layer 130, and the fourth end of the second extraction electrode 170 at least partially passes through the sealant layer 140. The second protective adhesive layer 180 is at least partially disposed on the second conductive substrate layer 130 and at least partially covers the third end of the second extraction electrode 170.
According to the electrochromic device 100 provided by the embodiment of the application, the first end of the first extraction electrode 150 is arranged on the first conductive substrate layer 110, so that the first conductive substrate layer 110 is electrically connected with an external power supply through the first extraction electrode 150, and the third end of the second extraction electrode 170 is arranged on the second conductive substrate layer 130, so that the second conductive substrate layer 130 is electrically connected with the external power supply through the second extraction electrode 170. By providing the first protective adhesive layer 160 at least partially covering the first end of the first extraction electrode 150 on the first conductive substrate layer 110, the first protective adhesive layer 160 can form a protective effect on the first end of the first extraction electrode 150, so as to prevent the first end of the first extraction electrode 150 from falling off or being misplaced and disconnected from the first conductive substrate layer 110 by external drawing force, and improve the stability and reliability of electrical connection between the first extraction electrode 150 and the first conductive substrate layer 110. By providing the second protective adhesive layer 180 at least partially covering the third end of the second extraction electrode 170 on the second conductive substrate layer 130, the second extraction electrode 170 can be prevented from falling off or being misplaced and disconnected from the second conductive substrate layer 130 by protecting the second protective adhesive layer to form a protective effect on the second extraction electrode 170, and the stability and reliability of electrical connection between the second extraction electrode 170 and the second conductive substrate layer 130 are improved. A sealing paste layer 140 for sealing is provided along the circumference of the electrochromic medium layer 120, a second end of the first extraction electrode 150 at least partially penetrates the sealing paste layer 140, and a fourth end of the second extraction electrode 170 at least partially penetrates the sealing paste layer 140 to be electrically connected to a power line of an external power source.
Optionally, the sealant layer 140 is located circumferentially between the first conductive base layer 110 and the second conductive base layer 130. Preferably, the sealant layer 140 is located in the circumferential direction outside the first and second conductive base layers 110 and 130. Therefore, the sealant layer 140 can be arranged along the circumferential direction of the electrochromic medium layer 120 to form a seal on the electrochromic medium layer 120, prevent the invasion of external water oxygen and the like, and improve the service life and the service reliability of the electrochromic device 100.
Optionally, the electrochromic medium layer 120 is one or a combination of more than two of liquid electrochromic medium, solid electrochromic medium or sol electrochromic medium. Preferably, the electrochromic medium layer 120 is an electrochromic stack layer, and the electrochromic stack layer includes an ion storage layer, an electrolyte layer and an electrochromic layer which are sequentially stacked. By disposing the electrochromic medium layer 120 between the first conductive base layer 110 and the second conductive base layer 130 to form the electrochromic device 100, a current or voltage is introduced between the first conductive base layer 110 and the second conductive base layer 130 through an external power source to form an electric field on both sides of the electrochromic medium layer 120, thereby driving the electrochromic medium layer 120 to generate a coloring or fading phenomenon, that is, the electrochromic device 100 shows a change in light transmittance in appearance, thereby realizing an adjustment effect on light transmittance of a scene to which the electrochromic device 100 is applied.
Illustratively, one end of the first extraction electrode 150 may be electrically connected to the first conductive base layer 110 by a conductive paste (e.g., ACF), and a power line of an external power source may be electrically connected to the first extraction electrode 150 by soldering to achieve stable electrical connection. The first protective adhesive layer 160 may be a UV curable adhesive (e.g. an acrylic UV curable adhesive, 90K glue), and the sealant layer 140 may be a butyl adhesive. In addition, the first protective adhesive layer 160, for example, 90K, has good sealing performance, and the sealing performance of the butyl adhesive is not affected, so that the sealing performance of the entire rearview mirror 1000 is also good.
It should be noted that, since the reliable temperature of the existing ACF glue is 85 ℃ and the high temperature resistance is not good, and the processing temperature of the butyl glue reaches 120 ℃, when the butyl glue with edge sealed is melted and flowed under high temperature and high pressure, a shearing force is formed at the contact interface between the extraction electrode and the ACF glue, so that the extraction electrode is displaced relative to the ACF glue, and the extraction electrode and the conductive layer are dislocated and disconnected, so that the electrical connection is invalid, and the electrochromic device 100 is broken.
Note that, the material of the second extraction electrode 170 is identical to the material of the first extraction electrode 150, and the material of the second protective adhesive layer 180 is identical to the material of the first protective adhesive layer 160.
As shown in fig. 1-6, in some embodiments of the present application, optionally, the first protective glue layer 160 extends over the first extraction electrode 150 to at least partially pass through the sealant layer 140 and is located between the first extraction electrode 150 and the sealant layer 140; and/or the second protective paste layer 180 extends over the second extraction electrode 170 to at least partially pass through the sealant layer 140 and is located between the second extraction electrode 170 and the sealant layer 140. Wherein, one surface of the protective adhesive layer is connected with the extraction electrode, and the other surface is connected with the sealing adhesive layer 140.
Optionally, one side of the first protective adhesive layer 160 is in contact with the sealant layer 140, and the other side is in contact with the first extraction electrode 150; and/or one side of the second protective adhesive layer 180 is in contact with the sealant layer 140, and the other side is in contact with the second extraction electrode 170. In this case, the protective adhesive layer may be located between the sealant layer 140 and the extraction electrode, so as to reduce the contact area between the sealant layer 140 and the extraction electrode, so as to reduce the bonding force between the sealant layer 140 and the extraction electrode, and especially, in the process of pressurizing and heating, the shearing force generated on the extraction electrode when the sealant layer 140 flows can be sufficiently reduced, so that the extraction electrode is more effectively and comprehensively protected, the occurrence of the situations of dislocation disconnection or falling between the extraction electrode and the conductive substrate layer is more effectively avoided, and the electrical connection stability and the use reliability of the electrochromic device 100 are improved.
Preferably, at least one of the first protective adhesive layer 160 and the second protective adhesive layer 180 has a viscosity less than that of the sealant layer 140 under a predetermined temperature and a predetermined pressure. In general, under the preset temperature and pressure conditions, the viscosity of the protective adhesive layer is smaller than that of the sealant layer 140, and the protective adhesive layer has better fluidity than the sealant layer 140. Therefore, the protective adhesive layer is arranged between the extraction electrode and the sealant layer 140, the fluidity of the protective adhesive layer is better than the fluidity of the sealant layer 140 under the high-temperature and high-pressure processing condition, so that the lubricating effect can be achieved, the shearing acting force on the extraction electrode when the sealant layer 140 flows is effectively reduced, the extraction electrode is effectively prevented from being displaced, the protection effect on the extraction electrode is improved, the occurrence of the conditions of dislocation disconnection and the like between the extraction electrode and the conductive substrate layer is prevented, the stability and the reliability of the electrical connection between the extraction electrode and the conductive substrate layer are further improved, and the stability and the reliability of the electrical connection of the electrochromic device 100 are improved.
In some embodiments of the present application, optionally, at least one of the first protective adhesive layer 160 and the second protective adhesive layer 180 has a viscosity V 1, and the sealant layer 140 has a viscosity V 2; wherein the following relationship is satisfied between the V 1 and the V 2: v 1/V2＝K1,0＜K1 is less than or equal to 0.1. Preferably, the ratio K 1 is between 0 and 0.005, i.e. 0 < K 1.ltoreq.0.005. Therefore, by setting the ratio K 1 within a specific range, the viscosity of the protective adhesive layer can be further ensured to be smaller than that of the sealant layer 140 under the preset temperature and preset pressure processing conditions, so that the mobility of the protective adhesive layer is ensured to be better than that of the sealant layer 140 under the preset temperature and preset pressure processing conditions, the lubricating effect is achieved, and the shearing acting force on the extraction electrode when the sealant layer 140 flows is effectively reduced.
In some embodiments of the application, as shown in fig. 6, optionally, at least a portion of the second end of the first extraction electrode 150 and the fourth end of the second extraction electrode 170 pass through the sealant layer 140 and are located within the sealant layer 140. Thus, by disposing the second end of the first extraction electrode 150 and/or the fourth end of the second extraction electrode 170 in the sealant layer 140, the connection between the first extraction electrode 150 and the first conductive base layer 110 and the power supply wire of the external power supply, the connection between the second extraction electrode 170 and the second conductive base layer 130 and the power supply wire of the external power supply can be better protected, and the stability and reliability of the electrical connection between the first extraction electrode 150 and the first conductive base layer 110 and the power supply wire of the external power supply, and between the second extraction electrode 170 and the second conductive base layer 130 and the power supply wire of the external power supply can be improved.
As shown in fig. 4 and 5, in some embodiments of the present application, optionally, at least one of the second end of the first extraction electrode 150 and the fourth end of the second extraction electrode 170 completely passes through the sealant layer 140 to be exposed outside the sealant layer 140. Thus, by passing the second end of the first lead-out electrode 150 and/or the fourth end of the second lead-out electrode 170 completely through the sealant layer 140, the second end of the first lead-out electrode 150 and/or the fourth end of the second lead-out electrode 170 are exposed outside the sealant layer 140, thereby facilitating the formation of an electrical connection with an external power source to supply a voltage or current, etc. to the electrochromic device 100.
As shown in fig. 4, 5 and 6, in some embodiments of the present application, optionally, at least a portion of the first protective adhesive layer 160 and the second protective adhesive layer 180 pass through the sealant layer 140 and are positioned within the sealant layer 140. Therefore, the protective adhesive layer does not penetrate through the adhesive layer 140, so that the shearing acting force generated on the extraction electrode when the adhesive layer 140 flows can be reduced, the movement of the extraction electrode is reduced, a good anti-breaking effect is achieved, and meanwhile, the adhesive layer 140 has good continuity and better sealing performance.
In some embodiments of the present application, optionally, the first protective adhesive layer 160 is located between the first extraction electrode 150 and the sealant layer 140 and has a length L 1, and the sealant layer 140 has a length L 2; wherein the following relationship is satisfied between the L 1 and the L 2: l 1/L2＝K2,0＜K2 is less than or equal to 1, preferably 0.1 is less than or equal to K 2 is less than or equal to 0.9; and/or the length of the second protective adhesive layer 180 between the second extraction electrode 170 and the sealant layer 140 is L 1, and the length of the sealant layer 140 is L 2, where the following relationship is satisfied between the L 1 and the L 2: l 1/L2＝K2,0＜K2 is less than or equal to 1, preferably 0.1 is less than or equal to K 2 is less than or equal to 0.9. Therefore, by setting the ratio K 2 between 0 and 1, especially between 0.1 and 0.9, the shearing force on the extraction electrode generated when the sealant layer 140 flows can be reduced, the movement of the extraction electrode is reduced, a good anti-breaking effect is achieved, and meanwhile, the sealant layer 140 can be guaranteed to have good continuity and sealing performance.
As shown in fig. 1-6, in some embodiments of the present application, optionally, the first protective glue layer 160 completely covers the first end of the extraction electrode, and/or the second protective glue layer 180 completely covers the third end of the second extraction electrode 170. Therefore, the protection glue layer completely covers one end of the extraction electrode to form comprehensive protection for the extraction electrode, so that the stability of connection between the extraction electrode and the conductive basal layer is enhanced.
In other embodiments, as shown in fig. 1 and 2, the first protective glue layer 160 partially covers the first end of the first extraction electrode 150 and/or the second protective glue layer 180 partially covers the third end of the second extraction electrode 170. Thus, the protection of the extraction electrode can be also formed by partially covering one end of the extraction electrode with the protective adhesive layer, and the stability of the connection between the extraction electrode and the conductive underlayer can be enhanced.
As shown in fig. 1 and 3, in some embodiments of the present application, optionally, the electrochromic device 100 further includes a first conductive adhesive layer 190, the first conductive adhesive layer 190 is located between the first end of the first extraction electrode 150 and the first conductive base layer 110, and a melting temperature of the first conductive adhesive layer 190 is higher than a melting temperature of the sealing adhesive layer 140; and/or a second conductive adhesive layer 191, the second conductive adhesive layer 191 being located between the third end of the second extraction electrode 170 and the second conductive base layer 130, and the melting temperature of the second conductive adhesive layer 191 being higher than the melting temperature of the sealing adhesive layer 140.
Therefore, the conductive adhesive layer is arranged between the extraction electrode and the conductive substrate layer, so that stable electric connection is formed between the extraction electrode and the conductive substrate layer through the conductive adhesive layer, and the melting temperature of the conductive adhesive layer is higher than that of the sealing adhesive layer 140, so that even if the sealing adhesive layer 140 is melted, the conductive adhesive layer with higher melting temperature can still maintain stable bonding performance, so that stable electric connection is kept between the extraction electrode and the conductive substrate layer, the extraction electrode is displaced by shearing acting force generated on the extraction electrode when the sealing adhesive layer 140 flows, the protection effect on the extraction electrode is improved, the occurrence of dislocation disconnection and the like between the extraction electrode and the conductive substrate layer is prevented, the stability and the reliability of electric connection between the extraction electrode and the conductive substrate layer are further improved, and the stability and the reliability of electric connection of the electrochromic device 100 are improved.
In some embodiments of the present application, optionally, the sealant layer 140 is made of uv curable adhesive. In general, the ultraviolet light curing adhesive does not need to adopt a hot melting process, and the hot melting process is not required to be adopted to act on the sealing adhesive layer 140 in the process of preparing the electrochromic device 100 by making the sealing adhesive layer 140 be ultraviolet light curing adhesive, so that the conductive adhesive layer does not need to bear a hot melting process with high temperature or high pressure, and can keep stable bonding performance, so that stable electric connection between the extraction electrode and the conductive substrate layer is kept, and the occurrence of the conditions of dislocation disconnection between the extraction electrode and the conductive substrate layer is effectively prevented.
In some embodiments of the present application, the viscosity of the sealant layer 140 is optionally not greater than 5000cps under preset temperature and preset pressure conditions. Therefore, the fluidity of the sealant layer 140 is relatively small, and the shearing acting force generated on the extraction electrode when the sealant layer 140 flows is effectively reduced, so that the extraction electrode is effectively prevented from being displaced, the protection effect on the extraction electrode is improved, the occurrence of the conditions of dislocation disconnection and the like between the extraction electrode and the conductive substrate layer is prevented, the stability and the reliability of the electrical connection between the extraction electrode and the conductive substrate layer are further improved, and the stability and the reliability of the electrical connection of the electrochromic device 100 are further improved.
As shown in fig. 7, an embodiment of the second aspect of the present application further provides an electrochromic glass 200, where the electrochromic glass 200 includes a first substrate 210, a second substrate 220, and the electrochromic device 100 described in any of the foregoing embodiments, the first substrate 210 is disposed on a side of the first conductive base layer 110 away from the electrochromic medium layer 120, the second substrate 220 is disposed on a side of the second conductive base layer 130 away from the electrochromic medium layer 120, and the sealant layer 140 is located in a circumferential direction between the first substrate 210 and the second substrate 220.
In the embodiment of the second aspect of the present application, by disposing the electrochromic device 100 between the first substrate 210 and the second substrate 220, the first substrate 210, the electrochromic device 100, and the second substrate 220 can be combined to form the electrochromic glass 200, and the first substrate 210 and the second substrate 220 perform a good protection function for the electrochromic device 100. By arranging the sealant layer 140 in the circumferential direction between the first substrate 210 and the second substrate 220, the sealing function of the electrochromic device 100 is realized, the influence of external water vapor on the function of the electrochromic device 100 is effectively prevented, and the use stability and reliability of the electrochromic device 100 are improved.
As shown in fig. 9 and 10, in some embodiments of the present application, optionally, the first protective adhesive layer 160 extends over the first extraction electrode 150 and is located between the first extraction electrode 150 and the second substrate 220; and/or the second protective adhesive layer 180 extends over the second extraction electrode 170 and is located between the second extraction electrode 170 and the first substrate 210. Wherein, the one surface of the protection glue layer is connected with the extraction electrode, and the other surface is connected with the substrate.
Optionally, one side of the first protective adhesive layer 160 contacts the second substrate 220, and the other side contacts the first extraction electrode 150; and/or one side of the second protective adhesive layer 180 is in contact with the first substrate 210, and the other side is in contact with the second extraction electrode 170. Therefore, the protective adhesive layer is arranged between the substrate and the extraction electrode, so that the protective adhesive layer 140 between the extraction electrode and the substrate can be completely replaced by the protective adhesive layer, and the protective adhesive layer 140 is positioned on two side surfaces of the protective adhesive layer and the extraction electrode, so that the protective adhesive layer can play a role in protecting the extraction electrode and can play a role in sealing so as to seal edges of the substrate at the corresponding position of the extraction electrode.
As shown in fig. 11, in some embodiments of the present application, optionally, a cross-sectional area of a side of the first protective adhesive layer 160 away from the first extraction electrode 150 is smaller than a cross-sectional area of a side of the first protective adhesive layer 160 away from the second substrate 220; and/or the cross-sectional area of the side of the second protective glue layer 180 away from the second extraction electrode 170 is smaller than the cross-sectional area of the side of the second protective glue layer 180 away from the first substrate 210. Therefore, the sectional area of one side of the protective adhesive layer far away from the extraction electrode is smaller than the sectional area of one side of the protective adhesive layer far away from the substrate, so that a good fixing effect can be formed on the protective adhesive layer through the sealing adhesive layer 140, the contact area between the protective adhesive layer and the substrate can be reduced, and the overall attractiveness of the rearview mirror 1000 is improved. Meanwhile, the contact area between the protective adhesive layer and the sealant layer 140 can be increased, and the bonding stability between the protective adhesive layer and the sealant layer 140 is improved, so that the bonding stability and sealing performance of the electrochromic glass 200 are improved.
As shown in fig. 8, there is also provided a rear view mirror 1000 in an embodiment of the third aspect of the present application, the rear view mirror 1000 comprising a reflective coating 300 and an electrochromic glazing 200 as described above, wherein the reflective coating 300 is located on the first substrate 210 or the second substrate 220. Preferably, the reflective coating 300 is positioned on the second substrate 220, and the second substrate 220 is positioned on a side remote from an external observer.
In the embodiment of the third aspect of the present application, by disposing the reflective coating 300 on the substrate of the electrochromic glass 200, the electrochromic glass 200 and the reflective coating 300 can be combined to form the rearview mirror 1000, the substrate of the electrochromic glass 200 not only has a good protection effect on the electrochromic device 100, but also can reflect and image external light to display to a user, thereby realizing the function of the rearview mirror 1000, and the anti-glare effect of the rearview mirror 1000 can be realized by utilizing the color change phenomenon of the electrochromic device 100.
Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (10)
1. An electrochromic device comprising:
The first conductive substrate layer, the electrochromic medium layer and the second conductive substrate layer are sequentially stacked;
a sealant layer located circumferentially of the electrochromic medium layer;
A first extraction electrode having a first end proximal to the electrochromic medium layer and a second end distal to the electrochromic medium layer, wherein the first end of the first extraction electrode is disposed on the first conductive substrate layer, the second end of the first extraction electrode at least partially passing through the sealant layer;
the first protective adhesive layer is at least partially arranged on the first conductive substrate layer and at least partially covers the first end of the first extraction electrode;
A second extraction electrode having a third end proximal to the electrochromic medium layer and a fourth end distal to the electrochromic medium layer, wherein the third end of the second extraction electrode is disposed on the second conductive base layer, the fourth end of the second extraction electrode passing at least partially through the sealant layer; and
The second protective adhesive layer is at least partially arranged on the second conductive substrate layer and at least partially covers the third end of the second extraction electrode;
the first protective adhesive layer extends on the first extraction electrode to at least partially penetrate through the sealant layer and is positioned between the first extraction electrode and the sealant layer;
And/or the second protective glue layer extends over the second extraction electrode to at least partially pass through the sealant layer and is located between the second extraction electrode and the sealant layer.
2. The electrochromic device according to claim 1, wherein at least one of the first protective glue layer and the second protective glue layer has a viscosity less than a viscosity of the sealing glue layer under preset temperature and preset pressure conditions.
3. The electrochromic device according to claim 2, wherein at least one of said first protective glue layer and said second protective glue layer has a viscosity V 1 and said sealant layer has a viscosity V 2;
Wherein the following relationship is satisfied between the V 1 and the V 2: v 1/V2＝K1,0＜K1 is less than or equal to 0.1.
4. The electrochromic device according to claim 1, wherein the first protective glue layer has a length L 1 between the first extraction electrode and the glue layer, the glue layer has a length L 2, wherein the following relation is satisfied between L 1 and L 2: l 1/L2＝K2,0.1≤K2 is less than or equal to 0.9;
And/or the length of the second protective adhesive layer between the second extraction electrode and the sealant layer is L 1, and the length of the sealant layer is L 2, where the following relation is satisfied between L 1 and L 2: l 1/L2＝K2,0.1≤K2 is less than or equal to 0.9.
5. The electrochromic device according to claim 1, further comprising:
A first conductive glue layer located between the first end of the first extraction electrode and the first conductive base layer, and having a melting temperature higher than that of the sealing glue layer;
And/or a second conductive adhesive layer, the second conductive adhesive layer is located between the third end of the second extraction electrode and the second conductive substrate layer, and the melting temperature of the second conductive adhesive layer is higher than the melting temperature of the sealing adhesive layer.
6. The electrochromic device according to claim 1, wherein the viscosity of the sealant layer is not greater than 5000cps under preset temperature and preset pressure conditions.
7. An electrochromic glazing comprising:
The electrochromic device according to any one of claims 1 to 6, wherein,
The first substrate is arranged on one side, far away from the electrochromic medium layer, of the first conductive base layer, the second substrate is arranged on one side, far away from the electrochromic medium layer, of the second conductive base layer, and the sealant layer is located in the circumferential direction between the first substrate and the second substrate.
8. The electrochromic glass of claim 7, wherein the first protective glue layer extends over the first extraction electrode and is located between the first extraction electrode and the second substrate;
and/or the second protective adhesive layer extends on the second extraction electrode and is positioned between the second extraction electrode and the first substrate.
9. The electrochromic glass of claim 8, wherein a cross-sectional area of a side of the first protective glue layer remote from the first extraction electrode is smaller than a cross-sectional area of a side of the first protective glue layer remote from the second substrate;
And/or the cross section area of one side of the second protective adhesive layer away from the second leading-out electrode is smaller than the cross section area of one side of the second protective adhesive layer away from the first substrate.
10. A rearview mirror comprising a reflective coating and the electrochromic glazing of claim 7, wherein the reflective coating is disposed on the first substrate or the second substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211715384.6A CN115793340B (en) | 2022-12-29 | Electrochromic device, electrochromic glass and rearview mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211715384.6A CN115793340B (en) | 2022-12-29 | Electrochromic device, electrochromic glass and rearview mirror |
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| Publication Number | Publication Date |
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| CN115793340A CN115793340A (en) | 2023-03-14 |
| CN115793340B true CN115793340B (en) | 2024-06-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671729A (en) * | 2021-07-01 | 2021-11-19 | 福耀玻璃工业集团股份有限公司 | Light adjusting film, edge sealing method thereof, light adjusting assembly and vehicle |
| CN216248709U (en) * | 2021-11-19 | 2022-04-08 | 光羿智能科技(苏州)有限公司 | Electrochromic device |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671729A (en) * | 2021-07-01 | 2021-11-19 | 福耀玻璃工业集团股份有限公司 | Light adjusting film, edge sealing method thereof, light adjusting assembly and vehicle |
| CN216248709U (en) * | 2021-11-19 | 2022-04-08 | 光羿智能科技(苏州)有限公司 | Electrochromic device |
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