Dimming device and dimming apparatus

Abstract

The utility model relates to the technical field of dimming devices, and provides a dimming device and a dimming device, and the dimming device comprises a dimming diaphragm, a bus bar and a bonding assembly. The bus bar and the bonding assembly are arranged on the edge area of the dimming diaphragm, and the bonding assembly at least partially covers the bus bar; the bonding assembly comprises a first bonding piece and a second bonding piece, the extending direction of the first bonding piece and the extending direction of the second bonding piece are consistent with the extending direction of the edge area where the first bonding piece and the second bonding piece are located, the second bonding piece is closer to the outer edge of the edge area where the second bonding piece is located than the first bonding piece, and the width of the first bonding piece is larger than that of the second bonding piece. The first bonding piece and the second bonding piece form a bonding effect on the bus bar, so that the first bonding piece and the second bonding piece respectively fix the two ends of the bus bar, the first bonding piece close to the interior of the dimming membrane has higher bonding strength, the second bonding piece is prevented from exceeding the outer edge of the dimming membrane, and the service life of the dimming membrane is prolonged. Therefore, the falling risk of the bus bar is reduced, and the overall stability of the dimming device is improved.

Description

Technical Field

[0001] This application relates to the field of dimming technology, and in particular to a dimming device and a dimming apparatus. Background Technology

[0002] With technological advancements, the demand for light and heat regulation is increasing, leading to greater attention being paid to dimming technology. Specifically, dimming technology refers to the technique of changing the optical properties of dimming materials under the influence of an applied electric field, external light intensity, and other external factors. Typically, this results in reversible changes in color and transparency in dimming devices containing the material. In recent years, dimming devices have been widely used in energy-saving windows, display devices, mobile terminals, and automotive rearview mirrors, demonstrating promising market prospects.

[0003] For dimming devices, a busbar is usually set at the edge area to electrically connect the dimming device to an external driving power supply, thereby producing color changes. However, prolonged use may cause the busbar to gradually detach from the dimming device, affecting the connection stability and ultimately impacting the color-changing effect of the dimming device. Utility Model Content

[0004] The purpose of this application is to provide a dimming device and a dimming apparatus, which aims to solve the problem of insufficient bonding stability of conductive materials in existing dimming devices.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, embodiments of this application provide a dimming device, including a dimming diaphragm, a busbar, and an adhesive assembly;

[0007] The busbar and the adhesive assembly are disposed in the edge region of the dimming film, and the adhesive assembly at least partially covers the busbar; wherein...

[0008] The adhesive assembly includes a first adhesive member and a second adhesive member. The extension directions of both the first and second adhesive members are consistent with the extension direction of the edge region they are located in. The second adhesive member is closer to the outer edge of the edge region than the first adhesive member, and the width of the first adhesive member is greater than the width of the second adhesive member. In some embodiments, the dimming film includes a first base layer, a first conductive layer, a dimming layer, a second conductive layer, and a second base layer, which are sequentially stacked.

[0009] The edge region of the dimming device is provided with a first groove and a second groove. The first groove penetrates the first base layer, the first conductive layer and the dimming layer along the stacking direction. The second groove penetrates the second base layer, the second conductive layer and the dimming layer along the stacking direction.

[0010] The busbar includes a first busbar and a second busbar. The first busbar is at least partially located within the first groove and connected to the second conductive layer. The second busbar is at least partially located within the second groove and connected to the first conductive layer.

[0011] The first adhesive and the second adhesive together cover the first groove and the first busbar; and / or, the first adhesive and the second adhesive together cover the second groove and the second busbar.

[0012] In some embodiments, along the width direction, one end of the first adhesive member away from the second adhesive member is disposed on the surface of the first substrate layer opposite to the dimming layer, and the other end of the first adhesive member is disposed on the first busbar; and / or, one end of the first adhesive member away from the second adhesive member is disposed on the surface of the second substrate layer opposite to the dimming layer, and the other end of the first adhesive member is disposed on the second busbar.

[0013] In some embodiments, one end of the second adhesive member away from the first adhesive member is disposed on the second conductive layer in the first groove, and the other end of the second adhesive member is disposed on the first busbar; and / or, one end of the second adhesive member away from the first adhesive member is disposed on the first conductive layer in the second groove, and the other end of the second adhesive member is disposed on the second busbar.

[0014] In some embodiments, the width of the first groove is D1, and the value of D1 is in the range of 4mm≤D1≤10mm; and / or, the width of the second groove is D2, and the value of D2 is in the range of 4mm≤D2≤10mm.

[0015] In some embodiments, along the first direction, the width of the first adhesive is W1, the width of the second adhesive is W2, and the sum of W1 and W2 satisfies the following relationship: 8mm≤W1+W2≤14mm.

[0016] In some embodiments, the width of the first adhesive is W1, and the value of W1 is in the range of 5mm≤W1≤8mm.

[0017] In some embodiments, the width of the second adhesive is W2, and the value of W2 is in the range of 3mm≤W2≤6mm.

[0018] In some embodiments, the dimming device further includes a connecting adhesive disposed on the first busbar and located between the first adhesive member and the second adhesive member, and the connecting adhesive is connected to the first adhesive member and the second adhesive member respectively; and / or, the connecting adhesive is disposed on the second busbar and located between the first adhesive member and the second adhesive member, and the connecting adhesive is connected to the first adhesive member and the second adhesive member respectively.

[0019] Secondly, embodiments of this application provide a dimming device, including a substrate and the dimming device, wherein the substrate is disposed on the side of the first base layer opposite to the dimming layer; and / or, the substrate is disposed on the side of the second base layer opposite to the dimming layer.

[0020] The beneficial effects of this application are:

[0021] 1. By setting a first adhesive component and a second adhesive component, with the width of the first adhesive component being greater than the width of the second adhesive component, the first and second adhesive components work together to form an adhesive effect on the busbar. This allows the first and second adhesive components to fix the two ends of the busbar respectively in the width direction of the edge area of ​​the dimming film, thereby reducing the risk of the busbar falling off. In addition, compared with the second adhesive component, the first adhesive component has a larger bonding area with the dimming film, thereby giving the first adhesive component higher bonding strength. This also avoids the second adhesive component being designed too wide, causing it to extend beyond the outer edge of the dimming film.

[0022] 2. In existing technologies, only one adhesive is typically used to seal the edges of the dimming diaphragm. However, at the edges of the dimming diaphragm with a large curvature, this adhesive often develops large wrinkles during the bending process of sealing. This invention uses a first adhesive and a second adhesive to fix the busbar and seal the edges of the dimming diaphragm. The widths of the first and second adhesives are smaller than the width of a single adhesive in existing technologies. As a result, both the first and second adhesives are easier to attach, reducing the difficulty of setting up the adhesive components. At the same time, it ensures that the dimming device has good flatness, a wide range of applications, and high flexibility. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1This is a top view of the structure of a dimming device provided in one embodiment of this application placed on a horizontal plane;

[0025] Figure 2 for Figure 1 Sectional view of AA;

[0026] Figure 3 for Figure 1 A cross-sectional view of an embodiment of this application in BB;

[0027] Figure 4 for Figure 1 Another embodiment of this application is shown in a cross-sectional view of BB;

[0028] Figure 5 This is a schematic diagram of the structure of a dimming device provided in an embodiment of this application.

[0029] In the figure, the various attached labels,

[0030] 1000 - Dimming device;

[0031] 100 - Dimming film; 110 - Edge area; 1101 - Outer edge;

[0032] 120 - First substrate layer; 130 - First conductive layer; 140 - Dimming layer; 150 - Second conductive layer; 160 - Second substrate layer;

[0033] 200 - Adhesive component; 210 - First adhesive element; 220 - Second adhesive element;

[0034] 310 - First busbar; 320 - Second busbar;

[0035] 410 - First groove; 420 - Second groove;

[0036] 500 - Connecting adhesive. Detailed Implementation

[0037] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0038] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified. "Width" and "length" refer to the width and length of the device when placed on a horizontal plane.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples. See also Figures 1 to 4 This application designs a dimming device 1000, including a dimming diaphragm 100, a busbar, and an adhesive assembly 200; the busbar and the adhesive assembly 200 are disposed on the edge region 110 of the dimming diaphragm 100, and their extending directions are consistent with the extending direction of the edge region 110. Here, "extending direction" refers to... Figure 1Taking the dimming film 100 shown as an example, it can be in the shape of a "square" formed by all the outer edges of the dimming film 100, or a "one" shape, or a right-angle shape, or a π shape.

[0042] The bonding component 200 at least partially covers the bus bar; wherein, the bonding component 200 includes a first bonding member 210 and a second bonding member 220. Please refer to Figure 1 , the X-axis represents the length direction after the dimming device 1000 is placed on the horizontal plane, and the Y-axis represents the corresponding width direction. Taking the first bonding member 210 and the second bonding member 220 provided in the edge area including the outer edge 1101 as an example, the second bonding member 220 is closer to the outer edge 1101 than the first bonding member 210, and the width of the first bonding member 210 is greater than the width of the second bonding member 220. Both the first bonding member 210 and the second bonding member 220 can respectively form a "square" shape around all the outer edges of the dimming film 100, or can only be provided in a partial edge area 110, such as extending in a "one" shape, a right-angle shape, or a π shape.

[0043] Refer to Figure 2 and Figure 3 , the dimming device 1000 provided in the first aspect of the embodiment of the present application includes a dimming film 100, and the dimming film 100 includes a first base layer 120, a first conductive layer 130, a dimming layer 140, a second conductive layer 150, and a second base layer 160 which are stacked in sequence from top to bottom.

[0044] Among them, both the first base layer 120 and the second base layer 160 are transparent substrates, and the "transparent substrate" is an optical-grade transparent material, specifically, it can be a flexible substrate material, and the flexible substrate material is polyethylene glycol terephthalate (PET), polycarbonate (PC), polyimide (PI), cycloolefin copolymer or cellulose triacetate, etc.

[0045] In addition, both the first conductive layer 130 and the second conductive layer 150 are transparent conductive layers, and the material of the "transparent conductive layer" can be a transparent conductive material well-known to those skilled in the art. For example, it can be indium tin oxide (ITO), aluminum zinc oxide (AZO), fluorine-doped tin oxide (FTO), silver nanowires, graphene, carbon nanotubes, metal grids or silver nanoparticles and other materials.

[0046] Exemplarily, the dimming layer 140 can be made of electrochromic materials, and can undergo stable and reversible color changes under the action of an external electric field. The dimming layer 140 is a sheet layer composed of one or more gel-based or solid-state materials, such as Polymer Dispersed Liquid Crystal (PDLC) layers, Suspended Particle Devices (SPD), and electrochromic (EC) layers, etc. For the electrochromic (EC) type of dimming layer 140, it can include a color-changing material layer, an electrolyte layer, and an ion storage layer stacked in sequence. The materials of the color-changing material layer, the electrolyte layer, and the ion storage layer can be materials in the prior art, and this application does not make special limitations on them.

[0047] As Figure 3 shown, the dimming device 1000 further includes a bus bar and an adhesive assembly 200. The bus bar and the adhesive assembly 200 are arranged in the edge area 110 of the dimming film 100, and the adhesive assembly 200 at least partially covers the bus bar.

[0048] In this embodiment, as Figure 1 shown, the dimming film 100 includes a central area and an edge area 110. The edge area 110 is adjacent to the central area to form the dimming film 100. The central area corresponds to the visible area of the dimming device 1000, and the edge area 110 corresponds to the non-visible area of the dimming device 1000. Exemplarily, the central area is the color-changing area in the dimming device 1000, and the edge area 110 is the non-color-changing area of the dimming device 1000. The transmittance of the dimming device 1000 or the amount of light passing through the dimming device 1000 is adjusted through the central area. In this embodiment, the dimming film 100 is a cuboid with a rectangular cross-section. It can be understood that its edge area 110 is in the shape of a "return" character.

[0049] Among them, the adhesive assembly 200 includes a first adhesive member 210 and a second adhesive member 220 both arranged in the edge area 110. The second adhesive member 220 is closer to the outer edge of the dimming film 100 in the length direction than the first adhesive member 210. The width of the first adhesive member 210 is greater than or equal to the width of the second adhesive member 220.

[0050] As Figure 3 shown, the adhesive assembly 200 includes a first adhesive member 210 and a second adhesive member 220 arranged in sequence from the inside to the outside. The first adhesive member 210 and the second adhesive member 220 at least partially cover the bus bar to fix the bus bar and prevent the bus bar from separating from the dimming film 100. Among them, the width direction is the X direction shown in the figure, and the width direction is perpendicular to the thickness direction of the dimming film 100.

[0051] It should be noted that the width of the adhesive assembly 200 refers to its length in the width direction of the edge region 110 of the dimming diaphragm 100, and the width direction of the first adhesive member 210 and the second adhesive member 220 is consistent with the width direction of the adhesive assembly 200. The first adhesive member 210 and the second adhesive member 220 are adhesive, and the materials of the first adhesive member 210 and the second adhesive member 220 include conventional colloids with insulating properties and water and oxygen barrier effects. The first adhesive member 210 and the second adhesive member 220 are bonded together on the edge region 110 of the dimming diaphragm 100 where the busbar is located.

[0052] like Figure 5 As shown, in some embodiments, the edge region 110 of the dimming diaphragm 100 has an irregular structure. For example, the edge of the dimming diaphragm 100 is an irregular arc or curve. Therefore, when the adhesive component 200 is provided at the arc or curve, if the adhesive component 200 is a continuous adhesive component 200, the width of the adhesive component 200 undoubtedly needs to be set relatively wide, that is, it needs to cover the busbar and part of the edge region 110 to satisfy the requirement of properly bonding the busbar to the edge region 110. When the width of the adhesive component 200 is set too wide, wrinkles can easily occur during attachment, resulting in local unevenness of the dimming device 1000 at the edge.

[0053] In the embodiments of this application, the adhesive component 200 includes a first adhesive member 210 and a second adhesive member 220, such that the width of the first adhesive member 210 and the second adhesive member 220 is smaller than the width of a single adhesive component. In this way, both the first adhesive member 210 and the second adhesive member 220 can be easily attached, reducing the difficulty of setting up the adhesive component 200. Furthermore, the busbar is disposed in the edge region 110 of the dimming film 100. The distance between the busbar and the outer edge of the dimming film 100 is small, resulting in a limited contact area between the second adhesive member 220 and the edge region 110. Therefore, in order to improve the fixing strength of the adhesive assembly 200, the width of the first adhesive member 210 is made greater than the width of the second adhesive member 220. In this way, the contact area between the first adhesive member 210 and the edge region 110 of the dimming film 100 is increased, further improving the bonding and fixing effect of the first adhesive member 210 on the busbar. Moreover, the first adhesive member 210 and the second adhesive member 220 are arranged alternately, so that the first adhesive member 210 and the second adhesive member 220 do not interfere with each other, making it easier to set up the adhesive assembly 200.

[0054] In the embodiments of this application, a plurality of alternating first grooves 410 and second grooves 420 are provided in the edge region 110 of the dimming film 100.

[0055] like Figure 2 As shown, the first groove 410 and the second groove 420 are disposed in the edge region 110 of the dimming device 1000. The first groove 410 penetrates the first substrate layer 120, the first conductive layer 130 and the dimming layer 140 along the stacking direction, and the second groove 420 penetrates the second substrate layer 160, the second conductive layer 150 and the dimming layer 140 along the stacking direction. The number of the first groove 410 and the second groove 420 can be one, two or more, and can be specifically set according to the actual situation.

[0056] In some embodiments, along the width direction of the edge region 110 of the dimming film 100, the width of the first groove 410 is D1, and the value of D1 is in the range of 4mm≤D1≤10mm; and / or, along the width direction, the width of the second groove 420 is D2, and the value of D2 is in the range of 4mm≤D2≤10mm.

[0057] For example, the dimming film 100 has busbars on both sides in the stacking direction. One busbar is located in the edge region 110 of the first substrate layer 120 and can serve as the positive or negative electrode of the dimming film 100. The other busbar is located in the edge region 110 of the second substrate layer 160 and can serve as the negative or positive electrode of the dimming film 100. The busbars on both sides are spaced apart in the stacking direction to avoid short circuits between the busbars and improve the stability of the dimming film 100.

[0058] like Figure 2 As shown, in some embodiments, the busbar includes a first busbar 310 and a second busbar 320. The first busbar 310 is at least partially connected to the second conductive layer 150 through the first groove 410, and the second busbar 320 is at least partially connected to the first conductive layer 130 through the second groove 420.

[0059] In the above embodiments of this application, the first groove 410 penetrates the first substrate layer 120, the first conductive layer 130, and the dimming layer 140, and exposes a portion of the second conductive layer 150 to form a first electrode through this exposed portion of the second conductive layer 150. The first busbar 310 is disposed in the first groove 410 and forms an electrical connection with the first electrode to electrically connect the first electrode to an external power source. The second groove 420 penetrates the second substrate layer 160, the second conductive layer 150, and the dimming layer 140, and exposes a portion of the first conductive layer 130 to form a second electrode. The second busbar 320 is disposed in the second groove 420 to form an electrical connection with the second electrode. That is, the first busbar 310 and the second busbar 320 respectively form the negative and positive electrodes of the dimming device 1000.

[0060] For example, the busbar can be made of conductive materials such as copper foil, silver wire, and conductive resin. In this application, by introducing current or voltage into the first conductive layer 130 and the second conductive layer 150, an electric field is formed on both sides of the dimming layer 140, thereby driving the dimming layer 140 to undergo coloring or fading, so that the dimming device 1000 exhibits a change in light transmittance in appearance, thereby achieving the function of adjusting the light transmittance of the scene in which the dimming device 1000 is applied.

[0061] like Figure 3 As shown, the first adhesive 210 and the second adhesive 220 together cover the first groove 410 and the first busbar 310; and / or, the first adhesive 210 and the second adhesive 220 together cover the second groove 420 and the second busbar 320.

[0062] In some embodiments, the first busbar 310 is at least partially located in the first groove 410. The first adhesive 210 and the second adhesive 220 together cover the first groove 410 and the first busbar 310. The first adhesive 210 covers and adheres to the end of the first busbar 310 closest to the dimming layer 140, and the second adhesive 220 covers and adheres to the end of the first busbar 310 furthest from the dimming layer 140. By jointly covering both ends of the first busbar 310, a fixation is formed, making the contact between the first busbar 310 and the first electrode at the bottom of the first groove 410 more stable, thus ensuring the electrical connection between the first busbar 310 and the first electrode.

[0063] In other embodiments, the second busbar 320 is at least partially located in the second groove 420. The second adhesive member 220 and the second adhesive member 220 together cover the second groove 420 and the second busbar 320. The second adhesive member 220 covers and adheres to the end of the second busbar 320 closest to the dimming layer 140, and the second adhesive member 220 covers and adheres to the end of the second busbar 320 furthest from the dimming layer 140. By jointly covering both ends of the second busbar 320, a fixation is formed for the second busbar 320, making the contact between the second busbar 320 and the second electrode at the bottom of the second groove 420 more stable, thus ensuring the electrical connection effect between the second busbar 320 and the second electrode.

[0064] In some embodiments of this application, the width of the first adhesive 210 is W1 and the width of the second adhesive 220 is W2 along the width direction. The sum of W1 and W2 satisfies the following relationship: 8mm≤W1+W2≤14mm.

[0065] In this embodiment, the total width of the first adhesive member 210 and the second adhesive member 220 can be adjusted according to the width of the first groove 410 or the second groove 420. It should be noted that when the width of the first groove 410 or the second groove 420 is small, the sum of the widths of the first adhesive member 210 and the second adhesive member 220 can be small; conversely, when the width of the first groove 410 and the second groove 420 is large, the sum of the widths of the first adhesive member 210 and the second adhesive member 220 can be large. For example, when the width of the first groove 410 or the second groove 420 is 4mm, the sum of the widths of the first adhesive member 210 and the second adhesive member 220 can be set to 8mm; or, when the width of the first groove 410 or the second groove 420 is 10mm, the sum of the widths of the first adhesive member 210 and the second adhesive member 220 can be set to 14mm. By setting the sum of the widths of the first adhesive member 210 and the second adhesive member 220 to be greater than the width of the first groove 410 or the second groove 420, it can be ensured that the first adhesive member 210 and the second adhesive member 220 can at least partially cover the sidewalls of the first groove 410 and the second groove 420 while covering the busbar, so as to form a covering protection.

[0066] In some embodiments of this application, along the width direction, one end of the first adhesive member 210 away from the second adhesive member 220 is disposed on the surface of the first substrate layer 120 opposite to the dimming layer 140, and the other end of the first adhesive member 210 is disposed on the first busbar 310; and / or, along the width direction, one end of the first adhesive member 210 away from the second adhesive member 220 is disposed on the surface of the second substrate layer 160 opposite to the dimming layer 140, and the other end of the first adhesive member 210 is disposed on the second busbar 320.

[0067] like Figure 3 As shown, in some embodiments, in the first groove 410, along the width direction, one end of the first adhesive member 210 away from the second adhesive member 220 is disposed on the surface of the first base layer 120 opposite to the dimming layer 140, and the other end of the first adhesive member 210 is disposed on the first busbar 310, so that one end of the first busbar 310 can be fixed by the adhesive force between the first adhesive member 210 and the surface of the first base layer 120. Furthermore, the first adhesive member 210 can also cover the side of the dimming layer 140 in the first groove 410, thereby forming a seal on the side of the dimming layer 140. Further, the first adhesive member 210 can also prevent external moisture and oxygen from entering the dimming layer 140 from the side of the dimming layer 140 in the first groove 410, thereby improving the electrochemical stability of the dimming device 1000. In this embodiment, by providing the first adhesive 210, a better adhesive effect can be formed on the end of the first busbar 310 near the dimming layer 140, thereby enhancing the adhesive stability of the first busbar 310 on the dimming film 100.

[0068] like Figure 3 As shown, in some embodiments, in the second groove 420, along the width direction, one end of the first adhesive member 210 away from the second adhesive member 220 is disposed on the surface of the second base layer 160 opposite to the dimming layer 140, and the other end of the first adhesive member 210 is disposed on the second busbar 320, so that one end of the second busbar 320 can be fixed by the adhesive force between the first adhesive member 210 and the surface of the second base layer 160. Furthermore, the first adhesive member 210 can also cover the side of the dimming layer 140 in the second groove 420, thereby forming a seal on the side of the dimming layer 140. Further, the first adhesive member 210 can also prevent external moisture and oxygen from entering the dimming layer 140 from the side of the dimming layer 140 in the second groove 420, thereby improving the electrochemical stability of the dimming device 1000. In this embodiment, by providing the first adhesive 210, a better adhesive effect can be formed on the end of the second busbar 320 near the dimming layer 140, thereby enhancing the adhesive stability of the second busbar 320 on the dimming film 100.

[0069] In some embodiments, the width of the first adhesive member 210 is W1, and the value of W1 is in the range of 5mm≤W1≤8mm. By setting a wider first adhesive member 210, a better bonding effect can be formed on the end of the busbar near the dimming layer 140, thereby enhancing the bonding stability of the busbar on the dimming film 100.

[0070] In some embodiments of this application, along the width direction, one end of the second adhesive 220 away from the first adhesive 210 is disposed on the second conductive layer 150 in the first groove 410, and the other end of the second adhesive 220 is disposed on the busbar; and / or, along the width direction, one end of the second adhesive 220 away from the first adhesive 210 is disposed on the first conductive layer 130 in the second groove 420, and the other end of the second adhesive 220 is disposed on the busbar.

[0071] like Figure 3 As shown, in some embodiments, in the first groove 410, along the width direction, one end of the second adhesive member 220 away from the first adhesive member 210 is disposed on the second conductive layer 150 in the first groove 410, and the other end of the second adhesive member 220 is disposed on the first busbar 310, so that one end of the first busbar 310 can be fixed by the adhesive force between the second adhesive member 220 and the surface of the second conductive layer 150, thereby making the surface contact between the first busbar 310 and the second conductive layer 150 more stable.

[0072] like Figure 3As shown, in some other embodiments, in the second groove 420, along the width direction, one end of the second adhesive member 220 away from the first adhesive member 210 is disposed on the first conductive layer 130 in the second groove 420, and the other end of the second adhesive member 220 is disposed on the second busbar 320, so that one end of the second busbar 320 can be fixed to the surface of the first conductive layer 130 by the adhesive force of the second adhesive member 220, thereby making the contact between the second busbar 320 and the surface of the first conductive layer 130 more stable.

[0073] In some embodiments, the width of the second adhesive member 220 is W2, and the value of W2 is in the range of 3mm≤W2≤6mm. By setting a narrower second adhesive member 220, a better bonding effect is formed on the end of the busbar away from the dimming layer 140, which enhances the bonding stability of the busbar on the dimming diaphragm 100. At the same time, it can prevent the second adhesive member 220 from being too wide and extending beyond the outer edge of the dimming diaphragm 100, thereby causing unevenness at the outer edge of the dimming diaphragm 100, and ensuring the overall aesthetics and consistency of the dimming device 1000.

[0074] In some embodiments of this application, such as Figure 4 As shown, the dimming device 1000 further includes a connecting adhesive 500, which is disposed on the first busbar 310 and located between the first adhesive member 210 and the second adhesive member 220, and the connecting adhesive 500 is connected to the first adhesive member 210 and the second adhesive member 220 respectively; and / or, the connecting adhesive 500 is disposed on the second busbar 320 and located between the first adhesive member 210 and the second adhesive member 220, and the connecting adhesive 500 is connected to the first adhesive member 210 and the second adhesive member 220 respectively.

[0075] In this embodiment, when there is a gap between adjacent first adhesive component 210 and second adhesive component 220, by placing the connecting adhesive 500 at the gap between the two adhesive components, the connecting adhesive 500 can connect and further fix the first adhesive component 210 and the second adhesive component 220, preventing one of the first adhesive component 210 or the second adhesive component 220 from detaching from the busbar under the action of external force, so that the fixing effect of the adhesive assembly 200 on the busbar is better, thereby improving the overall stability of the dimming device 1000.

[0076] A second aspect of this application provides a dimming device, including a substrate disposed on a first base layer 120 on a side opposite to the dimming layer 140; and / or, a substrate disposed on a second base layer 160 on a side opposite to the dimming layer 140.

[0077] Specifically, the dimming device 1000 has substrates on both sides in the thickness direction, and the substrates are bonded to the dimming device 1000 on both sides in the thickness direction by an adhesive layer; the substrates are light-transmitting and are preferably glass.

[0078] The dimming device 1000 or dimming apparatus in the embodiments of this application is applicable to different types of dimming products. It is understood that the dimming products have the functions and beneficial effects of the dimming device 1000 or dimming apparatus in any of the above embodiments, which will not be described in detail here.

[0079] The dimming products include any of the following: electronic devices, building doors and windows, eyeglasses, and vehicles. Vehicles include cars, trains, airplanes, and ships; electronic devices include mobile phones, computers, tablets, and smart wearable devices; eyeglasses include ordinary eyeglasses, AR (Augmented Reality) glasses, VR (Virtual Reality) glasses, sunglasses, or ski goggles.

[0080] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dimming device, characterized in that, include: Dimming diaphragms, busbars, and bonding components; The busbar and the adhesive assembly are disposed in the edge region of the dimming film, and the adhesive assembly at least partially covers the busbar; wherein... The adhesive assembly includes a first adhesive member and a second adhesive member. The extension directions of both the first adhesive member and the second adhesive member are consistent with the extension direction of the edge region. The second adhesive member is closer to the outer edge of the edge region than the first adhesive member, and the width of the first adhesive member is greater than the width of the second adhesive member.

2. The dimming device according to claim 1, characterized in that, The dimming film includes a first base layer, a first conductive layer, a dimming layer, a second conductive layer, and a second base layer stacked sequentially. The edge region of the dimming device is provided with a first groove and a second groove. The first groove penetrates the first base layer, the first conductive layer and the dimming layer along the stacking direction. The second groove penetrates the second base layer, the second conductive layer and the dimming layer along the stacking direction. The busbar includes a first busbar and a second busbar. The first busbar is at least partially located within the first groove and connected to the second conductive layer. The second busbar is at least partially located within the second groove and connected to the first conductive layer. The first adhesive and the second adhesive together cover the first groove and the first busbar; And / or, the first adhesive and the second adhesive together cover the second groove and the second busbar.

3. The dimming device according to claim 2, characterized in that, One end of the first adhesive member away from the second adhesive member is disposed on the surface of the first substrate layer opposite to the dimming layer, and the other end of the first adhesive member is disposed on the first busbar. And / or, One end of the first adhesive member away from the second adhesive member is disposed on the surface of the second substrate layer opposite to the dimming layer, and the other end of the first adhesive member is disposed on the second busbar.

4. The dimming device according to claim 2, characterized in that, One end of the second adhesive member away from the first adhesive member is disposed on the second conductive layer in the first groove, and the other end of the second adhesive member is disposed on the first busbar; And / or, One end of the second adhesive member away from the first adhesive member is disposed on the first conductive layer within the second groove, and the other end of the second adhesive member is disposed on the second busbar.

5. The dimming device according to claim 2, characterized in that, The width of the first groove is D1, and the value of D1 is in the range of 4mm≤D1≤10mm; and / or, the width of the second groove is D2, and the value of D2 is in the range of 4mm≤D2≤10mm.

6. The dimming device according to claim 5, characterized in that, The width of the first adhesive component is W1, and the width of the second adhesive component is W2. The sum of W1 and W2 satisfies the following relationship: 8mm≤W1+W2≤14mm.

7. The dimming device according to claim 6, characterized in that, The width of the first adhesive component is W1, and the value of W1 is in the range of 5mm≤W1≤8mm.

8. The dimming device according to claim 6, characterized in that, The width of the second adhesive component is W2, and the value of W2 is in the range of 3mm≤W2≤6mm.

9. The dimming device according to claim 2, characterized in that, The dimming device further includes a connecting adhesive, which is disposed on the first busbar and located between the first adhesive and the second adhesive, and the connecting adhesive is connected to the first adhesive and the second adhesive respectively; And / or, the adhesive is disposed on the second busbar and located between the first adhesive and the second adhesive, and the adhesive is connected to the first adhesive and the second adhesive respectively.

10. A dimming device, characterized in that, The device includes a substrate and a dimming device as described in any one of claims 1-9, wherein the substrate is disposed on the side of the first substrate layer opposite to the dimming layer; and / or, the substrate is disposed on the side of the second substrate layer opposite to the dimming layer.

Images