An electrochromic device

Abstract

The present application provides an electrochromic device, belonging to the field of electrochromic. The electrochromic device includes a first substrate layer, a first conductive layer, an electrochromic layer, a second conductive layer, and a second substrate layer stacked in sequence; at least one first bus bar is provided on the side of the first substrate layer away from the electrochromic layer, and each first bus bar is electrically connected to the second conductive layer through at least one first groove; at least one second bus bar is provided on the side of the second substrate layer away from the electrochromic layer, and each second bus bar is electrically connected to the first conductive layer through at least one second groove; and at least one partition area is also included, each partition area is located between the first substrate layer and the second substrate layer, so as to separate the electrochromic layer through the partition area to form a plurality of color change areas, and the color changes of the plurality of color change areas are formed by connecting the first bus bar and the second bus bar to an external power supply respectively, so as to realize the partition control and patterned color change of the electrochromic device.

Description

Technical Field

[0001] The present application relates to the field of electrochromism, and in particular to an electrochromism device. Background Art

[0002] Electrochromism refers to the phenomenon that under the action of an applied voltage, charged ions are doped and dedoped with the material, causing the material to undergo an oxidation-reduction reaction, and then the optical properties of the material undergo reversible changes in the visible light infrared absorption region.

[0003] In the existing technology, indium tin oxide (ITO) is usually used as a conductive layer, which is arranged on the upper and lower surfaces of the electrochromic material to form a potential difference (electric field) between the two surfaces to drive its oxidation-reduction process; however, the surface resistance of ITO is large, and the time required for electrical conduction is long. Especially for some electrochromic devices with larger areas, it takes a long time to achieve their entire color change, and the color change rate is slow. Summary of the invention

[0004] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art and provide an electrochromic device that can increase the color change rate.

[0005] The present application provides the following technical solutions: an electrochromic device, comprising a first substrate layer, a first conductive layer, an electrochromic layer, a second conductive layer and a second substrate layer stacked in sequence; a plurality of staggered first grooves and second grooves are provided on the edge of the electrochromic device, the first groove is located on the side of the second conductive layer away from the second substrate layer, and the second groove is located on the side of the first conductive layer away from the first substrate layer; at least one first bus bar is provided on the side of the first substrate layer away from the electrochromic layer, and each of the first bus bars is electrically connected to the second conductive layer through at least one first groove; at least one second bus bar is provided on the side of the second substrate layer away from the electrochromic layer, and each of the second bus bars is electrically connected to the first conductive layer through at least one second groove; the electrochromic device also includes at least one partition area, the partition area penetrates and partitions at least one of the first conductive layer and the second conductive layer, so as to separate the electrochromic layer into a plurality of color change areas.

[0006] In the present application, the busbar can be connected to an external power source to introduce current / voltage, and an electrical connection is formed between the busbar and the conductive layer through the grooves, so that the electricity of the external power source can be conducted to the conductive layer more quickly; further, by setting a plurality of staggered first grooves and second grooves at the edge of the electrochromic device, an adjacent setting of the first busbar and the second busbar can be formed to further improve the electrical conduction rate, thereby accelerating the color change rate of the electrochromic device; in addition, the setting of the partition area can also separate the electrochromic layer into a plurality of color change areas, which can reduce the area of ​​the conductive layer in each area by dividing the conductive layer into a plurality of areas, thereby facilitating the rapid color change of the device, and the plurality of color change areas can further form zoned color change effects according to actual needs, enrich the color rendering effect of the device, and improve the practicality of the electrochromic device.

[0007] In some embodiments of the present application, there are multiple first bus bars, multiple first bus bars are arranged at intervals, and each of the first bus bars is arranged at the edge of the first substrate layer; there are multiple second bus bars, multiple second bus bars are arranged at intervals, and each of the second bus bars is arranged at the edge of the second substrate layer. Optionally, multiple first bus bars and multiple second bus bars are staggered to form a structure in which the first bus bar and the second bus bar are adjacent to each other. Thus, by setting multiple bus bars, the color change rate of the electrochromic device can be further improved, and by setting the bus bar at the edge of the substrate layer, the area of ​​the middle color change area can be expanded to increase the practical area of ​​the device and improve the user experience.

[0008] Further, each of the first bus bars and each of the second bus bars are arranged on the same side of the electrochromic layer. Preferably, the first bus bar and the second bus bar are arranged on the peripheral side of the electrochromic layer, and the first bus bar and the second bus bar are arranged on each side of the electrochromic layer at the same time. Thus, by arranging the first bus bar and the second bus bar on the same side of the electrochromic layer, the synchronization of current / voltage conduction can be ensured, that is, a potential difference or electric field is formed on the same side of the electrochromic layer at the same time, so that the electrochromic device forms a more uniform color change effect; further, by arranging bus bars on the peripheral side of the electrochromic layer, and making the first bus bar and the second bus bar coexist, the color change synchronization of the peripheral side of the electrochromic layer can be further ensured, and the uniformity of the overall color change of the electrochromic device can be improved. Moreover, by arranging bus bars on all four sides at the same time, the color change efficiency of the device can be further improved.

[0009] Further, the color changing zones are X, the first busbars in the even color changing zones among the X color changing zones are electrically connected through the first connecting wire, and the second busbars are electrically connected through the second connecting wire; the first busbars in the odd color changing zones among the X color changing zones are electrically connected through the third connecting wire, and the second busbars are electrically connected through the fourth connecting wire; wherein X is a positive integer not less than 3. Preferably, the color changing zones include a plurality of first color changing zones arranged at intervals, and the color changing zones also include a plurality of second color changing zones arranged at intervals, the first color changing zones and the second color changing zones are arranged adjacently, that is, the first color changing zones are odd color changing zones, and the second color changing zones are even color changing zones; and the first busbars in the second color changing zones are electrically connected through the first connecting wire, and the second busbars in the second color changing zones are electrically connected through the second connecting wire. More preferably, the first busbars in the first color changing zones are electrically connected through the third connecting wire, and the second busbars in the first color changing zones are electrically connected through the fourth connecting wire. Thus, by electrically connecting the bus bars in two spaced-apart color-changing zones through the first connecting line and the second connecting line, simultaneous regulation of the two spaced-apart color-changing zones can be achieved, thereby achieving synchronous color change of the two spaced-apart color-changing zones; further, by electrically connecting the bus bars in the remaining spaced-apart color-changing zones through the third connecting line and the fourth connecting line, the color change regulation of each spaced area can be achieved more conveniently and effectively, thereby improving the precision and diversification of the color change regulation of the electrochromic device.

[0010] Optionally, a plurality of the first bus bars are respectively located on opposite sides of the electrochromic layer, and a plurality of the second bus bars are respectively located on opposite sides of the electrochromic layer. Preferably, each of the second bus bars is located on the same side of the electrochromic layer as at least one of the first bus bars; further, each of the first bus bars is arranged on one side of the electrochromic layer, and each of the second bus bars is arranged on the other side of the electrochromic layer, wherein one side of the electrochromic layer and the other side of the electrochromic layer are two sides opposite to each other. Therefore, by simultaneously arranging the first bus bar on the opposite sides of the electrochromic layer and the second bus bar on the opposite sides thereof, when an external power source is introduced through the bus bars, the voltage or current conducted by the first bus bar can be simultaneously introduced on the opposite sides of the electrochromic layer, and the voltage or current conducted by the second bus bar can also be simultaneously introduced on the opposite sides of the electrochromic layer. A voltage gradient can be formed on the opposite sides and in the middle of the electrochromic layer, thereby achieving a gradient color effect; further, the first bus bar and the second bus bar can be respectively arranged on the opposite sides of the electrochromic layer, and other gradient color effects can also be achieved, thereby improving the diversity of color changes of the electrochromic device.

[0011] Furthermore, the partition area penetrates and separates the first conductive layer, the electrochromic layer and the second conductive layer; or the partition area penetrates and separates the first substrate layer, the first conductive layer, the electrochromic layer and the second conductive layer; or the partition area penetrates and separates the first conductive layer, the electrochromic layer, the second conductive layer and the second substrate layer; or the partition area penetrates and separates the first substrate layer, the first conductive layer, the electrochromic layer, the second conductive layer and the second substrate layer. Thus, by setting the partition area, at least the first conductive layer or the second conductive layer is separated to achieve the electrochromic partition effect.

[0012] Furthermore, the electrochromic layer includes an electrochromic material layer, an electrolyte layer and an ion storage layer stacked in sequence; the first conductive layer and the electrochromic material layer are provided with the partition area, or the second conductive layer and the ion storage layer are provided with the partition area; or the first conductive layer and the electrochromic material layer are provided with the partition area, and the second conductive layer and the ion storage layer are provided with the partition area, and the two partition areas overlap in the orthographic projection of the plane where the electrochromic layer is located. Thus, by setting the partition area, at least the first conductive layer or the second conductive layer is isolated to achieve the electrochromic zoning effect, but at the same time the electrolyte layer is kept unisolated. Preferably, the electrolyte layer can be filled in the partition area to improve the insulation performance between the partition areas and prevent the occurrence of electrical crosstalk between adjacent color change areas.

[0013] Furthermore, the orthographic projection of each of the first grooves on the plane where the first substrate layer is located is located at the edge of the first substrate layer, and the orthographic projection of each of the second grooves on the plane where the second substrate layer is located is located at the edge of the second substrate layer; or the orthographic projection of each of the first grooves on the plane where the first substrate layer is located is located on the inner side of the first substrate layer, and the orthographic projection of each of the second grooves on the plane where the second substrate layer is located is located on the inner side of the second substrate layer. Thus, by making the grooves located at the edge of the substrate layer, the area of ​​the color-changing region in the middle can be guaranteed to the maximum extent, and the effective color-changing area of ​​the electrochromic device can be increased; by making the grooves located at the inner side of the substrate layer, for example, the grooves can be formed by opening holes to enhance the supporting effect of the substrate layer on the busbar, and enhance the stability and reliability of the electrochromic device.

[0014] Furthermore, each of the color changing areas includes at least one of the first bus bar and at least one of the second bus bar. By setting the partition area, the electrochromic layer is divided into a plurality of color changing areas, and the area of ​​the conductive layer of each color changing area is reduced by partitioning the conductive layer into a plurality of areas, so as to facilitate the rapid color change of the device; thus, by making each color changing area include the first bus bar and the second bus bar at the same time, the rapid color change effect of the device can be further improved, and the individual control of each color changing area can be more effectively and conveniently realized, etc., so as to enrich the color rendering effect of the device and improve the practicality of the electrochromic device.

[0015] Furthermore, an insulating layer is also provided in the partition area, and the optical properties of at least one of the first substrate layer, the first conductive layer, the electrochromic layer, the second conductive layer or the second substrate layer match the optical properties of the insulating layer. Preferably, the insulating layer and the electrolyte layer have the same material composition. Thus, by providing the insulating layer, the insulating layer can be filled in the partition area to improve the insulation performance between the partition areas, prevent the occurrence of electrical crosstalk between adjacent color-changing areas, and match the optical properties of the insulating layer and other layers, so that the user can visually hardly observe the partition area and the insulating layer, thereby improving the user's experience.

[0016] Optionally, the electrochromic device further comprises a first high temperature glue and a second high temperature glue, wherein the first high temperature glue is located on one side of the first substrate layer and at least partially covers the first groove, and the second high temperature glue is located on one side of the second substrate layer and at least partially covers the second groove. Preferably, the first high temperature glue at least partially covers the first bus bar and at least partially covers the first groove, and the second high temperature glue at least partially covers the second bus bar and at least partially covers the second groove. More preferably, the first high temperature glue completely covers the first bus bar and the first groove, and the second high temperature glue completely covers the second bus bar and the second groove. Further, the width of the first high temperature glue is greater than the width of the first groove, and the width of the second high temperature glue is greater than the width of the second groove. Normally, interlayer peeling and the like are prone to occur at the edge area of ​​the groove. By setting the high-temperature glue on the base layer and at least partially covering the groove, the bonding strength of the edge area of ​​the groove can be improved, that is, the bonding strength between the layers of the electrochromic device can be improved; further, by covering the high-temperature glue on the bus bar, the preparation process can be simplified, and the electrical connection between the bus bar and the conductive layer can be not interfered with, while the interlayer bonding strength of the device can be improved to avoid the occurrence of demolding and the like; in addition, by making the width of the high-temperature glue greater than the width of the groove, a part of the high-temperature glue can be extended inward (visible area) to adhere to the base layer, and the other part can be adhered to the conductive layer through the groove, thereby further ensuring that multiple sides of the groove are attached with high-temperature glue, so as to more comprehensively and effectively ensure that demolding and the like will not occur at the edge of the groove, thereby improving the stability and reliability of the electrochromic device.

[0017] The embodiments of the present application have the following advantages: the electrochromic layer is separated by a partition area to form a plurality of color-changing areas, the first bus bar in each color-changing area is electrically connected to the second conductive layer, and the second bus bar is electrically connected to the first conductive layer, and the first bus bar and the second bus bar are arranged on the same side of the color-changing area, and the color change of the plurality of color-changing areas is formed by connecting the first bus bar and the second bus bar to an external power supply, respectively, so as to realize the control of the partition color change of the electrochromic device. By arranging the first bus bar and the second bus bar on the opposite sides of each color-changing area, and connecting the first bus bar and the second bus bar on both sides of the color-changing area to an external power supply, respectively, by controlling the magnitude of the voltage connected to both sides of the color-changing area, the color gradient of the color-changing area is realized, and the diversity of the color change of the electrochromic device is improved. By controlling the shape of the partition area, the electrochromic layer is separated to form various patterns, so as to realize the patterned color change of the electrochromic device.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are given below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of an electrochromic device from one viewing angle is shown in some embodiments of the present application;

[0021] Figure 2 Shows Figure 1 Cross-sectional view of the middle AA section;

[0022] Figure 3 Shows Figure 2 Enlarged view of middle part B;

[0023] Figure 4 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 1 ;

[0024] Figure 5 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 2 ;

[0025] Figure 6 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 3 ;

[0026] Figure 7 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 4 ;

[0027] Figure 8 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 5 ;

[0028] Fig. 9 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 6 ;

[0029] Fig.10 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 7 ;

[0030] Fig.11A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 8 ;

[0031] Fig.12 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 1 ;

[0032] Fig.13 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 2 ;

[0033] Fig.14 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 3 ;

[0034] Fig.15 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 4 ;

[0035] Fig.16 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 5 ;

[0036] Fig.17 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 6 ;

[0037] Fig.18 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 7 ;

[0038] Fig.19 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 8 ;

[0039] Fig. 20 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 9 ;

[0040] Fig.21 A schematic diagram showing a perspective structure of a partition area in an electrochromic device provided in some embodiments of the present application Figure 10 ;

[0041] Fig. 22A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 9 ;

[0042] Fig.23 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 10 ;

[0043] Fig.24 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 10 one;

[0044] Fig.25 A structural diagram showing a perspective of another structure of an electrochromic device provided by some embodiments of the present application Figure 10 two;

[0045] Fig.26 A top view of an electrochromic device structure containing high temperature glue provided in some embodiments of the present application is shown;

[0046] Fig. 27 A cross-sectional view of an electrochromic device structure containing high temperature glue provided in some embodiments of the present application is shown.

[0047] Description of main component symbols:

[0048] 10-electrochromic device; 10a-first groove; 10b-second groove; 10c-partitioning area; 10d-color changing area; 100-first substrate layer; 200-first conductive layer; 300-electrochromic layer; 310-electrochromic material layer; 320-electrolyte layer; 330-ion storage layer; 400-second conductive layer; 500-second substrate layer; 600-first bus bar; 700-second bus bar; 800-first connecting line; 900-second connecting line; 1000-first high temperature glue; 1100-second high temperature glue. DETAILED DESCRIPTION

[0049] The embodiments of the present application are described in detail below, and 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 having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0050] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0051] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the template are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0054] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, some embodiments of the present application provide an electrochromic device, which is applied to the discoloration of architectural glass, vehicle window glass, etc., to achieve patterning and color gradient of the electrochromic device, and improve the diversity of the discoloration of the electrochromic device. The electrochromic device 10 includes a first substrate layer 100, a first conductive layer 200, an electrochromic layer 300, a second conductive layer 400, and a second substrate layer 500 stacked in sequence.

[0055] A plurality of staggered first grooves 10 a and second grooves 10 b are provided at the edge of the electrochromic device 10 .

[0056] It should be noted that the number of the first grooves 10a and the number of the second grooves 10b are multiple, and can be any number greater than the value 2, which can be specifically set according to the actual situation, and the number of the first grooves 10a is equal to the number of the second grooves 10b. The so-called multiple staggered first grooves and second grooves here can refer to all the first grooves and second grooves being arranged adjacently; or only a part of the first grooves and second grooves are arranged adjacently, while the multiple first grooves of other parts can be arranged adjacently, and the multiple second grooves of other parts can also be arranged adjacently.

[0057] Specifically, a plurality of first grooves 10a are distributed at intervals on the edge of the electrochromic device 10, and each first groove 10a is located on the side of the second conductive layer 400 away from the second substrate layer. It should be noted that the first grooves 10a are formed by etching or laser engraving at the edge of the first conductive layer 200 and the edge of the electrochromic layer 300 at the same time. In some embodiments of the present application, the first grooves 10a can also be formed by etching or laser engraving at the edge of the first substrate layer 100, the edge of the first conductive layer 200, and the edge of the electrochromic layer 300 at the same time.

[0058] Each second groove 10b is located on a side of the first conductive layer 200 away from the first substrate layer, and a plurality of second grooves 10b are spaced apart and distributed at the edge of the electrochromic device 10. It should be noted that the second grooves 10b are formed by etching or laser engraving at the edge of the second conductive layer 400 and the edge of the electrochromic layer 300 at the same time. In some embodiments of the present application, the second grooves 10b can also be formed by etching or laser engraving at the edge of the second substrate layer 500, the edge of the second conductive layer 400, and the edge of the electrochromic layer 300 at the same time.

[0059] In addition, if Figures 4 to 7 As shown, each first groove 10 a and each second groove 10 b have a gap between the orthographic projections of the plane where the electrochromic layer 300 is located.

[0060] At the same time, at least one first bus bar 600 is disposed on the side of the first substrate 100 away from the electrochromic layer 300. It is understandable that the number of the first bus bars 600 can be one, two or more than two, and can be specifically set according to actual conditions.

[0061] Each first bus bar 600 is electrically connected to the second conductive layer 400 through at least one first groove 10a. Specifically, a portion of the first bus bar 600 is located in a plurality of first grooves 10a, and a portion of the first bus bar 600 located in the first groove 10a is electrically connected to the second conductive layer 400 through a conductive copper foil, and the conductive copper foil is located in the first groove 10a. In addition, a first bus bar 600 can also be electrically connected to the second conductive layer 400 through a plurality of conductive copper foils, and a conductive copper foil is disposed in each first groove 10a.

[0062] At the same time, at least one second bus bar 700 is disposed on the side of the second substrate 500 away from the electrochromic layer 300. It is understandable that the number of the second bus bars 700 can be one, two or more than two, and can be specifically set according to actual conditions.

[0063] Each second bus bar 700 is electrically connected to the first conductive layer 200 through at least one second groove 10b. Specifically, a portion of the second bus bar 700 is located in a plurality of second grooves 10b, and a portion of the second bus bar 700 located in the second groove 10b is electrically connected to the first conductive layer 200 through a conductive copper foil, and the conductive copper foil is located in the second groove 10b. In addition, a second bus bar 700 can also be electrically connected to the first conductive layer 200 through a plurality of conductive copper foils, and a conductive copper foil is disposed in each second groove 10b.

[0064] In some embodiments of the present application, the electrochromic device 10 further includes at least one partition area 10c, wherein the number of the partition areas 10c can be one, two, or more than two of any numerical value, which can be specifically set according to actual conditions.

[0065] Specifically, the isolation region penetrates and isolates at least one of the first conductive layer 200 and the second conductive layer 400 .

[0066] It is understandable that the partition area can be provided only on the first conductive layer 200, and the first conductive layer 200 can be partitioned through the partition area to separate the electrochromic layer 300 into at least two color-changing areas 10d.

[0067] Alternatively, the partition area may be disposed only on the second conductive layer 400, and the second conductive layer 400 may be partitioned through the partition area to separate the electrochromic layer 300 into at least two color-changing areas 10d.

[0068] In some embodiments of the present application, the isolation zone can also be respectively set on the first conductive layer 200 and the second conductive layer 400, and the first conductive layer 200 is penetrated and isolated by the isolation zone set on the first conductive layer 200, and the second conductive layer 400 is penetrated and isolated by the isolation zone set on the second conductive layer 400, so as to separate the electrochromic layer to form at least two color changing zones 10d.

[0069] Each partition area 10 c is located between the first substrate layer 100 and the second substrate layer 500 , so that the electrochromic layer 300 is divided into a plurality of color-changing areas 10 d by the partition area 10 c .

[0070] It should be noted that the shape of the orthographic projection of the partition area 10c on the plane where the electrochromic layer 300 is located can be any one of a straight line, a broken line, an arc and a curve, or a combination of any two or more of them, so that the electrochromic layer 300 can be separated by the partition area 10c to form various patterns.

[0071] like Fig.10 As shown, in some embodiments of the present application, there are multiple first bus bars 600, the multiple first bus bars 600 are arranged at intervals, and each first bus bar 600 is arranged at the edge of the same side of the first substrate layer 100, and there are multiple second bus bars 700, the multiple second bus bars 700 are arranged at intervals, and each second bus bar 700 is arranged at the edge of the same side of the second substrate layer 500.

[0072] Specifically, each first bus bar 600 and each second bus bar 700 are respectively disposed on the same side of the electrochromic layer 300 .

[0073] The number of the first bus bars 600 and the number of the second bus bars 700 can be two or more numbers of any numerical value, respectively, and can be specifically set according to actual conditions.

[0074] In this embodiment, there are multiple color changing areas 10d, and each color changing area 10d includes at least one first bus bar 600 and one second bus bar 700. By connecting the first bus bar 600 and the second bus bar 700 in each color changing area 10d to an external power source, the color change of each color changing area 10d is controlled.

[0075] In addition, the two first bus bars 600 and the two second bus bars 700 in two non-adjacent color changing areas 10d can be electrically connected, and the first bus bars 600 and the second bus bars 700 can be connected to an external power supply to form synchronous control of the color change of the two non-adjacent color changing areas 10d.

[0076] It is understandable that multiple first bus bars 600 and multiple second bus bars 700 in multiple non-adjacent color changing areas 10d can also be electrically connected to form synchronous control of multiple color changing areas 10d and partitioned control of adjacent color changing areas 10d.

[0077] In some embodiments, the orthographic projection of the partition region 10 c on the plane where the electrochromic layer 300 is located may be a straight line.

[0078] Specifically, the partition areas 10c are marked as N, and the electrochromic layer 300 is divided into (N+1) color-changing areas 10d by the N partition areas 10c, thereby forming a partitioned color change of the (N+1) color-changing areas 10d, where N is a positive integer.

[0079] Each color changing area 10d is electrically connected to at least one first bus bar 600 and one second bus bar 700, so that the color change of each color changing area 10d is adjusted by controlling the voltage connected to the first bus bar 600 and the second bus bar 700.

[0080] It should be noted that when N is greater than 1, any two partition areas 10c do not intersect.

[0081] In other embodiments, Figure 8 and Fig. 9 As shown, there is one partition area 10c, and one partition area 10c divides the electrochromic layer 300 into two color-changing areas 10d. The areas and shapes of the two color-changing areas 10d can be specifically set according to actual conditions.

[0082] In the present application, the voltages connected to the two ends of the two color-changing zones 10d can be controlled separately. At the same time, a first bus bar 600 and a second bus bar 700 are provided at both ends of each color-changing zone 10d. By electrically connecting the first bus bar 600 and the second bus bar 700 at both ends of the color-changing zone 10d to an external power source respectively, different voltages can be formed in the two color-changing zones 10d, thereby realizing control of the zoned color change of the electrochromic layer.

[0083] like Fig.10 and Fig.11 As shown, in some embodiments of the present application, the number of the partition regions 10c may be two, so as to separate the electrochromic layer 300 into three color-changing regions 10d.

[0084] It should be noted that the areas and shapes of the three color-changing regions 10d can be set according to actual conditions.

[0085] Specifically, in the above-mentioned three color changing areas 10d, the three color changing areas 10d are respectively marked as area A, area B and area C, and the first bus bar 600 and the second bus bar 700 connected to area A are respectively connected to an external power supply to form a voltage difference between the first bus bar 600 and the second bus bar 700 in area A, and recorded as U1.

[0086] At the same time, the first bus bar 600 and the second bus bar 700 connected to the B area are connected to the external power supply respectively, so as to form a voltage difference between the first bus bar 600 and the second bus bar 700 in the B area, and record it as U2.

[0087] At the same time, the first bus bar 600 and the second bus bar 700 connected to the C area are connected to the external power supply respectively, so as to form a voltage difference between the first bus bar 600 and the second bus bar 700 in the C area, and record it as U3.

[0088] Among them, U1 is not equal to U2, and U2 is not equal to U3, and U1, U2 and U3 are all greater than 0v, thereby realizing the zoned color change of the three color change areas 10d of area A, area B and area B.

[0089] like Fig.10 As shown, in some embodiments of the present application, there are X color change zones 10d, and the first bus bars 600 in the even-numbered color change zones among the X color change zones 10d are electrically connected through the first connecting wires 800, and the second bus bars 700 are connected through the second connecting wires 900.

[0090] It can be understood that the first bus bar 600 in each even-numbered color changing area among the X color changing areas 10d is electrically connected through the first connecting line 800, and the second bus bar 700 is electrically connected through the second connecting line 900, so as to electrically connect each even-numbered color changing area to each other, thereby realizing synchronous color changing control of each even-numbered color changing area. Among them, the even-numbered color changing area refers to the color changing area located at an even position among the X color changing areas.

[0091] At the same time, the first bus bars 600 in the odd-numbered color-changing areas among the X color-changing areas 10d are electrically connected through a third connection line, and the second bus bars 700 are electrically connected through a fourth connection line.

[0092] It can be understood that the first bus bar 600 in each odd-numbered color changing area among the X color changing areas 10d is electrically connected through the third connecting line, and the second bus bar 700 is electrically connected through the fourth connecting line, so as to electrically connect each odd-numbered color changing area to each other, thereby realizing synchronous color changing control of each odd-numbered color changing area. Among them, the odd-numbered color changing area refers to the color changing area located at an odd position among the X color changing areas.

[0093] Wherein, X is a positive integer not less than 3.

[0094] Since the odd-numbered color-changing areas and the even-numbered color-changing areas are arranged alternately, the color-changing control of each interval area can be achieved more conveniently and effectively, thereby improving the precision and diversity of the color-changing control of the electrochromic device.

[0095] In addition, in some embodiments of the present application, in order to achieve synchronous control and color change of multiple color change areas 10d, the color change areas 10d are set to X, the first bus bar 600 in the (XY)th color change area 10d and the first bus bar 600 in the (X-Y+Z)th color change area 10d are electrically connected through the first connecting line 800, and the second bus bar 700 in the (XY)th color change area 10d and the second bus bar 700 in the (X-Y+Z)th color change area 10d are electrically connected through the second connecting line 900. At the same time, the first bus bars 600 in the remaining color change areas 10d are electrically connected through the third connecting line, and the second bus bars 700 are electrically connected through the fourth connecting line.

[0096] Wherein, XY≥1 and Y≥Z≥2, X, Y and Z are all integers not less than 2.

[0097] Specifically, when X=3, that is, the number of color-changing zones 10d is three, at this time, Y=2, Z=2, that is, among the three color-changing zones 10d, the first bus bar 600 in the first color-changing zone 10d and the first bus bar 600 in the third color-changing zone 10d are electrically connected through the first connecting line 800, and at the same time, the second bus bar 700 in the first color-changing zone 10d and the second bus bar 700 in the third color-changing zone 10d are electrically connected through the second connecting line 900.

[0098] In addition, when X=4, that is, the number of the color changing zones 10d is four, at this time, Y=2 or 3, and Z=2 or 3. Specifically, when Y=2, the value of Z can only be 2, that is, among the four color changing zones 10d, the first bus bar 600 in the second color changing zone 10d and the first bus bar 600 in the fourth color changing zone 10d are electrically connected through the first connecting line 800, and the second bus bar 700 in the second color changing zone 10d and the second bus bar 700 in the fourth color changing zone 10d are electrically connected through the second connecting line 900. At the same time, the first bus bar 600 in the first color changing zone 10d and the first bus bar 600 in the third color changing zone 10d are electrically connected through the third connecting line, and the second bus bar 700 in the first color changing zone 10d and the second bus bar 700 in the third color changing zone 10d are electrically connected through the fourth connecting line. When Y=3, the value of Z is 3, that is, in the four color-changing zones 10d, the first bus bar 600 in the first color-changing zone 10d and the first bus bar 600 in the fourth color-changing zone 10d are electrically connected through the first connecting line 800, and the second bus bar 700 in the first color-changing zone 10d and the second bus bar 700 in the fourth color-changing zone 10d are electrically connected through the second connecting line 900; at the same time, the first bus bar 600 in the second color-changing zone 10d and the first bus bar 600 in the third color-changing zone 10d are electrically connected through the third connecting line, and the second bus bar 700 in the second color-changing zone 10d and the second bus bar 700 in the third color-changing zone 10d are electrically connected through the fourth connecting line.

[0099] When X=5, that is, the number of the color-changing areas 10d is five, at this time, Y=2, 3 or 4, Z=2, 3 or 4, and so on.

[0100] By electrically connecting two spaced-apart color-changing areas 10d, simultaneous regulation of the two spaced-apart color-changing areas is achieved, thereby achieving synchronous color change of the two spaced-apart color-changing areas.

[0101] In some embodiments, Figure 8 , Fig. 9 and Fig.11 As shown, multiple first bus bars 600 are respectively located on opposite sides of the electrochromic layer 300, and multiple second bus bars 700 are respectively located on opposite sides of the electrochromic layer 300. Each second bus bar 700 is located on the same side of the electrochromic layer 300 as at least one first bus bar 600, and each first bus bar 600 is located on the same side of the electrochromic layer 300 as at least one second bus bar 700.

[0102] The first bus bar 600 and the second bus bar 700 on one side of each color changing area 10d are respectively connected to an external power source, and the first bus bar 600 and the second bus bar 700 on the other side of each color changing area 10d are respectively connected to an external power source.

[0103] It should be noted that the voltage connected to the two opposite sides of each color-changing zone 10d can be adjusted according to the actual situation. While realizing the zoned color change of each color-changing zone 10d, the gradient color of each color-changing zone 10d is realized by setting different voltages on the two sides of each color-changing zone 10d, thereby realizing the zoned color change and gradient color of each color-changing zone 10d.

[0104] like Fig.24 and Fig.25 As shown, in some embodiments of the present application, a plurality of first bus bars 600 are disposed at intervals on the edge of the first substrate layer 100 , and a plurality of second bus bars 700 are disposed at intervals on the edge of the second substrate layer 500 .

[0105] Specifically, at least one first bus bar 600 is provided on any side of the edge of the first substrate layer 100, and at least one second bus bar 700 is provided on any side of the edge of the second substrate layer 500. By electrically connecting the first bus bar 600 and the second bus bar 700 to an external power source respectively, a plurality of electric fields are formed at the edge of the electrochromic layer 300, and the color change of each color change area 10d on the electrochromic layer 300 is controlled, thereby improving the color change diversity and color change efficiency of the electrochromic device 10.

[0106] like Figures 12 to 18 As shown, in some embodiments of the present application, the electrochromic layer 300 includes an electrochromic material layer 310 , an electrolyte layer 320 , and an ion storage layer 330 which are stacked in sequence.

[0107] like Fig.18 As shown, in some embodiments of the present application, the partition area penetrates and partitions the first conductive layer 200 , the electrochromic layer 300 , and the second conductive layer 400 .

[0108] Specifically, a partition area is formed by etching or laser engraving on the first conductive layer 200, the electrochromic layer 300, and the second conductive layer 400 at the same time, and the electrochromic layer 300 is separated by the partition area to form a plurality of color-changing areas 10d. It can be understood that at this time, the sum of the thickness of the first conductive layer 200, the thickness of the electrochromic layer 300, and the thickness of the second conductive layer 400 is equal to the depth of the partition area.

[0109] like Fig.19 As shown, in some embodiments of the present application, the partition area penetrates and partitions the first substrate layer 100 , the first conductive layer 200 , the electrochromic layer 300 and the second conductive layer 400 .

[0110] Specifically, the first substrate layer 100, the first conductive layer 200, the electrochromic layer 300 and the second conductive layer 400 are simultaneously formed with a partition area by etching or laser engraving, and the electrochromic layer 300 is separated by the partition area to form a plurality of color-changing areas 10d. It is understandable that, at this time, the sum of the thickness of the first substrate layer 100, the thickness of the first conductive layer 200, the thickness of the electrochromic layer 300 and the thickness of the second conductive layer 400 is equal to the depth of the partition area.

[0111] like Fig. 20 As shown, in some embodiments of the present application, the partition area penetrates and partitions the first conductive layer 200 , the electrochromic layer 300 , the second conductive layer 400 and the second substrate layer 500 .

[0112] Specifically, the first conductive layer 200, the electrochromic layer 300, the second conductive layer 400, and the second substrate layer 500 are simultaneously formed with a partition area by etching or laser engraving, and the electrochromic layer 300 is separated by the partition area to form a plurality of color-changing areas 10d. It is understandable that, at this time, the sum of the thickness of the first conductive layer 200, the thickness of the electrochromic layer 300, the thickness of the second conductive layer 400, and the thickness of the second substrate layer 500 is equal to the depth of the partition area.

[0113] like Fig.21 As shown, in some embodiments of the present application, the partition area penetrates and partitions the first substrate layer 100 , the first conductive layer 200 , the electrochromic layer 300 , the second conductive layer 400 and the second substrate layer 500 .

[0114] Specifically, the first substrate layer 100, the first conductive layer 200, the electrochromic layer 300, the second conductive layer 400 and the second substrate layer 500 are simultaneously formed with a partition area by etching or laser engraving, and the electrochromic layer 300 is separated by the partition area to form a plurality of color-changing areas 10d. It is understandable that, at this time, the sum of the thickness of the first substrate layer 100, the thickness of the first conductive layer 200, the thickness of the electrochromic layer 300, the thickness of the second conductive layer 400 and the thickness of the second substrate layer 500 is equal to the depth of the partition area.

[0115] It should be noted that, in this embodiment, the number of partition areas can be specifically set according to actual conditions.

[0116] like Figures 15 to 17 As shown, in some embodiments of the present application, the first conductive layer 200 and the electrochromic material layer 310 are provided with a partition area 10c. It should be noted that the partition area 10c is formed by etching the first conductive layer 200 and the electrochromic layer 300 simultaneously by etching or laser engraving, that is, the sum of the thickness of the first conductive layer 200 and the thickness of the electrochromic material layer 310 is equal to the depth of the partition area 10c.

[0117] Or a partition region 10c is provided in the second conductive layer 400 and the ion storage layer 330. It should be noted that the partition region 10c is formed by etching or laser engraving on the second conductive layer 400 and the ion storage layer 330 at the same time, that is, the sum of the thickness of the second conductive layer 400 and the thickness of the ion storage layer 330 is equal to the depth of the partition region 10c.

[0118] Or the first conductive layer 200 and the electrochromic material layer 310 are provided with a partition area 10c, and at the same time, the second conductive layer 400 and the ion storage layer 330 are provided with a partition area 10c, and the orthographic projection of the partition area 10c etched or laser engraved on the first conductive layer 200 and the electrochromic material layer 310 on the plane where the electrochromic layer 300 is located coincides with the orthographic projection of the partition area 10c etched or laser engraved on the second conductive layer 400 and the ion storage layer 330 on the plane where the electrochromic layer 300 is located.

[0119] It should be noted that the partition area 10c formed in the process of laser etching divides the electrochromic layer 300 into multiple patterns on the orthographic projection of the plane where the electrochromic layer 300 is located. The shape of the pattern can be specifically set according to actual conditions, thereby achieving patterned color change.

[0120] Specifically, Fig. 22 and Fig.23 As shown, when the partition area 10c is formed on the first conductive layer 200 by etching or laser engraving, or the partition area 10c is formed on the first conductive layer 200 and the electrochromic material layer 310 by etching or laser engraving at the same time, and the electrochromic layer 300 is divided into a plurality of color changing areas 10d, a supplementary bus bar is added to the side of the edge of the first substrate layer 100 where the first bus bar 600 is not provided, and the supplementary bus bar is electrically connected to the second conductive layer 400, so as to increase the color changing speed of the electrochromic layer 300 and provide a richer color changing effect.

[0121] In addition, when the partition area 10c is formed on the second conductive layer 400 by etching or laser engraving, or the partition area 10c is formed on the second conductive layer 400 and the ion storage layer 330 by etching or laser engraving at the same time, and the electrochromic layer 300 is divided into a plurality of color change areas 10d, a supplementary bus bar is added to the side of the edge of the second base layer 500 where the second bus bar 700 is not provided, and the supplementary bus bar is electrically connected to the first conductive layer 200, so as to increase the color change speed of the electrochromic layer 300 and provide a richer color change effect.

[0122] like Fig.18 As shown, in some embodiments of the present application, the first conductive layer 200, the electrochromic layer 300 and the second conductive layer 400 are provided with a partition area 10c.

[0123] It should be noted that the partition area 10c is simultaneously provided in the first conductive layer 200, the electrochromic layer 300 and the second conductive layer 400. At this time, the sum of the thickness of the first conductive layer 200, the thickness of the electrochromic layer 300 and the thickness of the second conductive layer 400 is equal to the depth of the partition area 10c, so that the electrochromic layer 300 is divided into a plurality of color-changing areas 10d.

[0124] In some embodiments of the present application, Figure 2 , Figure 3 and Fig.21 As shown, the shape of the electrochromic device 10 can be any one of a circle, an ellipse, a polygon, a regular polygon or an irregular shape, and can be specifically set according to actual conditions.

[0125] In this embodiment, the electrochromic device 10 may be in the shape of a square, and the first substrate layer 100 , the first conductive layer 200 , the electrochromic layer 300 , the second conductive layer 400 , and the second substrate layer 500 are all in the shape of squares and are equal in size.

[0126] At the same time, the first groove 10a is formed by etching or laser engraving at the edge of the first substrate layer 100, the edge of the first conductive layer 200 and the edge of the electrochromic layer 300. It can be understood that the sum of the thickness of the first substrate layer 100, the thickness of the first conductive layer 200 and the thickness of the electrochromic layer 300 is equal to the depth of the first groove 10a.

[0127] At the same time, the second groove 10b is formed by etching or laser engraving at the edge of the second substrate layer 500, the edge of the second conductive layer 400 and the edge of the electrochromic layer 300. It can be understood that the sum of the thickness of the second substrate layer 500, the thickness of the second conductive layer 400 and the thickness of the electrochromic layer 300 is equal to the depth of the second groove 10b.

[0128] It can be understood that the first groove 10a and the second groove 10b are both located at the edge of the electrochromic layer 300, thereby forming multiple electrode positions at the edge of the first conductive layer 200 and the edge of the second conductive layer 400, so that the first bus bar 600 is electrically connected to the multiple electrode positions at the edge of the second conductive layer 400, and the second bus bar 700 is electrically connected to the multiple electrode positions at the edge of the first conductive layer 200, and by connecting the first bus bar 600 and the second bus bar 700 to an external power source respectively, a plurality of electric fields are formed at the edge of the electrochromic layer 300, thereby achieving the diversity of color changes of the electrochromic layer 300 and improving the stability of the electrochromic device 10 during use.

[0129] like Figure 2 , Figure 3 and Fig. 22As shown, in some embodiments of the present application, the shape of the electrochromic device 10 is a square, and the first substrate 100, the first conductive layer 200, the electrochromic layer 300, the second conductive layer 400, and the second substrate 500 are all square. Among them, the first conductive layer 200, the electrochromic layer 300, and the second conductive layer 400 are equal in size, the first substrate 100 and the second substrate 500 are equal in size, the orthographic projections of the first substrate 100 and the second substrate 500 on the plane where the electrochromic layer 300 is located completely cover the electrochromic layer 300, and the surface area of ​​one side of the first substrate 100 in the thickness direction is greater than the surface area of ​​one side of the electrochromic layer 300 in the thickness direction.

[0130] The first groove 10a is formed by etching or laser engraving at a position close to the edge of the first substrate layer 100, the edge of the first conductive layer 200 and the edge of the electrochromic layer 300. It can be understood that the sum of the thickness of the first substrate layer 100, the thickness of the first conductive layer 200 and the thickness of the electrochromic layer 300 is equal to the depth of the first groove 10a.

[0131] At the same time, the second groove 10b is formed by etching or laser engraving at a position near the edge of the second substrate layer 500, the edge of the second conductive layer 400 and the edge of the electrochromic layer 300. It can be understood that the sum of the thickness of the second substrate layer 500, the thickness of the second conductive layer 400 and the thickness of the electrochromic layer 300 is equal to the depth of the second groove 10b.

[0132] By increasing the surface area of ​​the first substrate layer 100 and the second substrate layer 500, the width of the non-color changing area 10d at the edge of the electrochromic device 10 is increased to avoid affecting the color changing area 10d of the electrochromic device 10 during the installation process, thereby improving the stability of the electrochromic device 10 during the installation process.

[0133] In some embodiments of the present application, an insulating layer is further provided in the partition area, and the partition area is filled with the insulating layer to prevent the conductive layers on both sides of the partition area from contacting each other, so as to enhance the partition color changing effect of the electrochromic device. At the same time, by filling the partition area with an insulating layer, external water and oxygen are prevented from entering the electrochromic device through the partition area, so as to enhance the stability of the electrochromic device during the color changing process.

[0134] It should be noted that the optical properties of at least one of the first substrate layer 100, the first conductive layer 200, the electrochromic layer 300, the second conductive layer 400 or the second substrate layer 500 match the optical properties of the insulating layer to avoid the insulating layer affecting the appearance of the electrochromic device, thereby improving the aesthetics of the electrochromic device during the zoned color change process.

[0135] In some embodiments, the insulating layer may be an electrolyte layer. Thus, the insulating layer can be provided to enhance the electrical isolation effect of the partition area, ensure the independence of the color change between each color change area, and make the optical properties of the insulating layer match the optical properties of other layers of the device, thereby reducing the optical difference between the insulating layer and other layers, or making the insulating layer and other layers have no optical difference, thereby ensuring that the partition area does not affect the visual experience of the user and improving the user's comfort.

[0136] In some embodiments, the electrochromic device may further include a high temperature glue, such as a first high temperature glue 1000 and a second high temperature glue 1100. Fig. 27 As shown, the first high temperature adhesive 1000 can be disposed on the first substrate 100 and located on the side of the first substrate 100 away from the electrochromic layer 300, and the second high temperature adhesive 1100 can be disposed on the second substrate 500 and located on the side of the second substrate 500 away from the electrochromic layer 300. Thus, the high temperature adhesive can be stably bonded to the substrate.

[0137] In other embodiments, Fig. 27 As shown, the first high temperature adhesive 1000 can at least partially cover the first groove 10a, and the second high temperature adhesive 1100 can at least partially cover the second groove 10b. Thus, a part of the high temperature adhesive is bonded to the base layer, and a part is bonded to the exposed conductive layer in the groove part, which can form a reinforcement effect on the groove edge and prevent the groove edge from falling off between layers.

[0138] In other embodiments, the first high temperature adhesive 1000 at least partially covers the first bus bar 600 and at least partially covers the first groove 10a, and the second high temperature adhesive 1100 at least partially covers the second bus bar 700 and at least partially covers the second groove 10b. Thus, by covering the bus bar with the high temperature adhesive, the preparation process can be simplified, and the electrical connection between the bus bar and the conductive layer is not disturbed, while the interlayer bonding force of the device is improved to avoid the occurrence of demolding and the like.

[0139] In some embodiments, Fig.26As shown, the first high temperature glue 1000 can completely cover the first bus bar 600 and the first groove 10a. Similarly, the second high temperature glue 1100 can also completely cover the second bus bar 700 and the second groove 10b. In other embodiments, the width of the first high temperature glue 1000 can be greater than the width of the first groove 10a, and the width of the second high temperature glue 1100 can be greater than the width of the second groove 10b, so that the high temperature glue can cover the groove area. The so-called width here refers to the length of the dimension in the direction extending from the edge of the electrochromic device to the central area. Therefore, by making the width of the high temperature glue greater than the width of the groove, a part of the high temperature glue can be extended inward (visible area) to be attached to the base layer, and the other part can be attached to the conductive layer through the groove or form the first high temperature glue and the second high temperature glue. Bonding, thereby further ensuring that multiple edges of the groove are attached with high temperature glue, so as to more comprehensively and effectively ensure that the edges of the groove will not be demolded, etc., and improve the stability and reliability of the use of the electrochromic device.

[0140] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0141] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0142] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. An electrochromic device, characterized in that: It includes a first substrate layer, a first conductive layer, an electrochromic layer, a second conductive layer and a second substrate layer stacked in sequence; The edge of the electrochromic device is provided with a plurality of staggered first grooves and second grooves, wherein the first grooves are located on a side of the second conductive layer away from the second substrate layer, and the second grooves are located on a side of the first conductive layer away from the first substrate layer; At least one first bus bar is disposed on a side of the first substrate layer away from the electrochromic layer, and each of the first bus bars is electrically connected to the second conductive layer through at least one first groove; At least one second bus bar is provided on a side of the second substrate layer away from the electrochromic layer, and each of the second bus bars is electrically connected to the first conductive layer through at least one second groove; The electrochromic device further comprises at least one partitioning region, wherein the partitioning region penetrates and partitions at least one of the first conductive layer and the second conductive layer to separate the electrochromic layer into a plurality of color-changing regions; The electrochromic layer includes an electrochromic material layer, an electrolyte layer and an ion storage layer stacked in sequence, the first conductive layer and the electrochromic material layer are provided with the partition area, and the second conductive layer and the ion storage layer are provided with the partition area, the two partition areas overlap with the orthographic projection of the plane where the electrochromic layer is located, and an insulating layer is also arranged in the partition area.

2. The electrochromic device according to claim 1, characterized in that: There are a plurality of the first bus bars, the plurality of the first bus bars are arranged at intervals, and each of the first bus bars is arranged at an edge of the first base layer; There are a plurality of the second bus bars, the plurality of the second bus bars are arranged at intervals, and each of the second bus bars is arranged at an edge of the second base layer.

3. The electrochromic device according to claim 2, characterized in that: Each of the first bus bars and each of the second bus bars are disposed on the same side of the electrochromic layer.

4. The electrochromic device according to claim 2, characterized in that: There are X color change zones, the first bus bars in even-numbered color change zones among the X color change zones are electrically connected via a first connecting line, and the second bus bars are connected via a second connecting line; The first bus bars in the odd-numbered color-changing areas among the X color-changing areas are electrically connected via a third connection line, and the second bus bars are electrically connected via a fourth connection line; Wherein, X is a positive integer not less than 3.

5. The electrochromic device according to claim 1, characterized in that: The plurality of first bus bars are respectively located on two opposite sides of the electrochromic layer, The plurality of second bus bars are respectively located on two opposite sides of the electrochromic layer.

6. The electrochromic device according to claim 1, characterized in that: The partition area penetrates and partitions the first conductive layer, the electrochromic layer and the second conductive layer; or the partition area penetrates and partitions the first substrate layer, the first conductive layer, the electrochromic layer and the second conductive layer; or the partition area penetrates and partitions the first conductive layer, the electrochromic layer, the second conductive layer and the second substrate layer; Or the partition area penetrates and partitions the first substrate layer, the first conductive layer, the electrochromic layer, the second conductive layer and the second substrate layer.

7. The electrochromic device according to claim 1, characterized in that: The orthographic projection of each of the first grooves on the plane where the first substrate layer is located is located at an edge of the first substrate layer, and the orthographic projection of each of the second grooves on the plane where the second substrate layer is located is located at an edge of the second substrate layer; Or the orthographic projection of each of the first grooves on the plane where the first substrate layer is located is located on the inner side of the first substrate layer, and the orthographic projection of each of the second grooves on the plane where the second substrate layer is located is located on the inner side of the second substrate layer.

8. The electrochromic device according to any one of claims 1 to 7, characterized in that: Each of the color changing areas includes at least one of the first bus bars and at least one of the second bus bars.

9. The electrochromic device according to claim 1, characterized in that: The optical properties of at least one of the first substrate layer, the first conductive layer, the electrochromic layer, the second conductive layer, or the second substrate layer match the optical properties of the insulating layer.

Images