Dimming film, dimming glass and vehicle

Abstract

The invention relates to the technical field of dimming films, and particularly discloses a dimming film, dimming glass and a vehicle, the dimming film comprises a first base layer, a first conductive layer, a dimming layer, a second conductive layer and a second base layer which are stacked in sequence, the first conductive layer is divided into a plurality of control end regulation and control areas which can be independently controlled, each regulation and control area is provided with a first wiring area, and the second conductive layer is divided into a second wiring area and a third wiring area; a first lead with high conductivity is attached to the second conductive layer, a first electrode end is formed at the tail end of the first lead, the second conductive layer serves as a common end regulation and control area, a second lead is attached to a second wiring area and connected with a third lead attached to the outer surface of the second base layer through a via hole or in a winding mode, and a second electrode end is formed at one end of the third lead. The first electrode ends and the second electrode ends converge side by side to form a unified insertion part, the insertion part is formed through innovative lead layout, a traditional flexible circuit board is omitted, the structure is simplified, the cost is reduced, and partition control and performance stability of the dimming film are facilitated.

Description

Technical Field

[0001] This invention relates to the technical field of dimming films, specifically to a dimming film, dimming glass, and vehicle. Background Technology

[0002] With the emergence of products such as dimming canopies and dimming glass, the application of dimming films is also increasing. In existing dimming canopies and other products, ITO is generally used as a transparent conductive layer, and electrode leads are made through copper foil lines on flexible circuit boards to achieve zoned control of dimming film layers such as PDLC.

[0003] However, this traditional technical solution has obvious drawbacks. First, the use of flexible circuit boards increases the cost of materials and the complexity of the structure. Second, when it is necessary to gather the electrode leads to one side to achieve connection with the external driving circuit, especially when the PDLC film layer requires separate leads for the front and back electrodes, the traditional FPC solution often appears cumbersome and unreliable. For example, the leads for the front and back electrodes may need to be processed separately, which increases the assembly difficulty and the potential risk of connection failure. In addition, the existing solution also faces challenges in ensuring the stability and consistency of the voltage difference between the electrodes in each zone. Summary of the Invention

[0004] This invention addresses the aforementioned problems and aims to provide a dimming film, dimming glass, and vehicle that can simplify the connection structure with external circuits and reduce costs.

[0005] To achieve the above objectives, the present invention provides a dimming film, comprising a first base layer, a first conductive layer, a dimming layer, a second conductive layer and a second base layer stacked sequentially, and further comprising a first lead, a second lead and a third lead;

[0006] The first conductive layer is configured to have multiple independently controllable control terminal adjustment regions, each control terminal adjustment region including a first main body region and a first trace region, and the end of the first trace region forms a first electrode terminal;

[0007] Each of the first trace areas has a first lead attached to it, and the conductivity of the first lead is greater than the conductivity of the first conductive layer.

[0008] The second conductive layer is configured as a common terminal control region, which includes a second main body region and a second trace region, and the second lead is attached to the second trace region;

[0009] The third lead wire is attached to the outer surface of the second base layer and is located on the same side of the light control film as the first lead wire, one end of the third lead wire is connected to the second lead wire, and the other end forms a second electrode end, and the conductivity of the second lead wire and the third lead wire is greater than the conductivity of the second conductive layer;

[0010] Each of the first electrode end and the second electrode end is arranged side by side and together forms a plug-in part for connecting with an external circuit.

[0011] According to the light control film, the first conductive layer is attached to the first base layer, the first lead wire is attached to the inner side of the light control layer in the first wiring area, and the first lead wire is not covered by the second base layer, the second conductive layer, and the light control layer.

[0012] According to the light control film, the first wiring area is formed by peeling off the second base layer, the second conductive layer, and the light control layer from the complete light control film, or is formed based on the part of the first base layer that exceeds the second base layer by the first base layer having a size greater than the second base layer; the second wiring area is formed by peeling off the first base layer, the first conductive layer, and the light control layer from the complete light control film, or is formed based on the part of the second base layer that exceeds the first base layer by the second base layer having a size greater than the first base layer.

[0013] According to the light control film, the second wiring area is located at the edge of the second conductive layer, and the second lead wire is electrically connected to the third lead wire by bypassing the first wiring area.

[0014] According to the light control film, a through hole is formed in the second wiring area and penetrates the second base layer, and the second lead wire is electrically connected to the third lead wire through the through hole.

[0015] According to the light control film, the second electrode end of the third lead wire is located on the same plane as the first electrode end by a pressing process.

[0016] According to the light control film, the first lead wire and the third lead wire are further covered by a first insulating protective layer, and the second lead wire is further covered by a second insulating protective layer.

[0017] According to the light control film, a plurality of control end control areas are formed by laser etching; the first lead wire, the second lead wire, and the third lead wire are formed by coating a silver layer or a copper layer.

[0018] A light control glass comprises:

[0019] A first glass layer;

[0020] A second glass layer;

[0021] The dimming film described above is disposed between the first glass layer and the second glass layer.

[0022] A vehicle comprising:

[0023] Body:

[0024] The dimming glass described above is mounted on the vehicle body.

[0025] The present invention has the following beneficial effects:

[0026] 1. By bringing the first and second electrodes together side by side to form a connector for connecting to an external circuit, the connector can be directly plugged into external electrical components without the need for additional flexible circuit boards. This simplifies the external connection structure of the dimming film and saves costs.

[0027] 2. The second lead can be electrically connected to the third lead in two ways: by bypassing the first wiring area or by passing through a via. This design allows the third lead and the first lead to be on the same side of the dimming film, which facilitates the side-by-side convergence of the first and second electrical terminals and facilitates standardized interface design.

[0028] 3. The first conductive layer is configured with multiple independently controllable control terminal adjustment areas, realizing the zone control of the dimming film. Users can independently adjust the transparency of different areas as needed, which greatly improves the flexibility of use and the scope of application.

[0029] 4. By setting a first lead with high conductivity in the first wiring area and a second and third lead with high conductivity in the second wiring area, the problem of voltage drop caused by excessive resistance of the conductive layer in the dimming film is effectively solved, ensuring the overall stability and consistency of the dimming film.

[0030] 5. The lead wires are covered with an insulating protective layer, which can prevent short circuits and oxidation, thus extending the product's service life. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall appearance of the embodiment;

[0032] Figure 2 This is an exploded view of an embodiment;

[0033] Figure 3 This is an exploded view of another side of the embodiment;

[0034] Figure 4 This is a schematic diagram of the overall structure of the embodiment;

[0035] Figure 5 yes Figure 3An enlarged structural schematic view of A in FIG.

[0036] In the drawings:

[0037] 100, first base layer; 200, first conductive layer; 210, control end regulation area; 211, first main body area; 212, first wiring area; 212a, first electrode end; 300, light regulation layer; 400, second conductive layer; 410, common end regulation area; 500, second base layer; 600, plug-in part; 700, first lead wire; 710, first insulation protective layer; 800, second lead wire; 810, second insulation protective layer; 900, third lead wire; 910, second electrode end. DETAILED DESCRIPTION

[0038] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0039] As Figures 1-5 shown, a light regulation film includes a first base layer 100, a first conductive layer 200, a light regulation layer 300, a second conductive layer 400, a second base layer 500, a first lead wire 700, a second lead wire 800, and a third lead wire 900, wherein the first base layer 100, the first conductive layer 200, the light regulation layer 300, the second conductive layer 400, and the second base layer 500 are sequentially stacked.

[0040] In this embodiment, the first base layer 100 and the second base layer 500 are made of transparent polyester (PET) material, having good light transmittance and mechanical strength, the first conductive layer 200 and the second conductive layer 400 are made of indium tin oxide (ITO) material, having high light transmittance and appropriate conductivity, and the light regulation layer 300 is a polymer dispersed liquid crystal (PDLC) layer, whose optical properties change with an applied electric field, that is, different electric fields are applied to the light regulation layer 300 by the first conductive layer 200 and the second conductive layer 400 to change its optical properties.

[0041] In the embodiment, the first conductive layer 200, the second conductive layer 400, the first lead wire 700, the second lead wire 800 and the third lead wire 900 are used to form all the electrode terminals, and the electrode terminals are on the same side. The electrode terminals are gathered together to form a plug-in part 600, and the plug-in part 600 is directly electrically connected with an external plug-in connector. The plug-in part 600 is provided on the light-adjustable film after the manufacturing process, and the assembly process of the plug-in part is omitted, and the material cost of the plug-in part is saved, thereby reducing the cost of the light-adjustable film.

[0042] Specifically, the first conductive layer 200 is configured to have a plurality of independently controllable control terminal control areas 210. Each control terminal control area 210 includes a first main area 211 and a first wire area 212. The end of the first wire area 212 forms a first electrode terminal 212a. Each first wire area 212 is attached with a first lead wire 700. The conductivity of the first lead wire 700 is greater than that of the first conductive layer 200. Since the plurality of control terminal control areas 210 can be independently controlled, the plurality of first wire areas 212 are independent of each other, and the plurality of first lead wires 700 are also independent of each other, that is, they are insulated from each other. The partition control of the light-adjustable film is realized. The user can independently adjust the voltage of different control terminal control areas according to needs, thereby adjusting the transparency of the corresponding area of the light-adjustable film, greatly improving the flexibility and application range. The first electrode terminal 212a can be powered through the corresponding first lead wire 700 to the corresponding control terminal control area 210.

[0043] In the embodiment, the plurality of control terminal control areas 210 are formed by laser etching. In the etching process, the conductive material on the first conductive layer 200 is removed to separate the different control terminal control areas 210, thereby completing the insulation between the different control terminal control areas 210.

[0044] Specifically, the second conductive layer 400 is configured as a common end control area 410, the common end control area 410 includes a second main area and a second wiring area, the common end control area 410 can be set as one or more, which does not affect the partition control of the dimming film, the second lead 800 is attached to the second wiring area, the third lead 900 is attached to the outer surface of the second base layer 500 and is located on the same side of the dimming film as the first lead 700, one end of the third lead 900 is communicated with the second lead 800, and the other end forms a second electrode end 910, and the conductivity of the second lead 800 and the third lead 900 is greater than the conductivity of the second conductive layer 400, wherein the power supply of the second electrode end 910 can be transmitted to the second lead 800 through the third lead 900, and then transmitted to the common end control area 410 through the second lead 800.

[0045] Wherein, since the third lead 900 and the first lead 700 are located on the same side of the dimming film, the second electrode end 910 and the plurality of first electrode ends 212a can be arranged side by side, therefore, each first electrode end 212a and the second electrode end 910 are arranged side by side and gathered together to form a plug-in part 600 for connecting with external circuit, since the first electrode end 212a and the second electrode end 910 are arranged side by side, it is convenient for standardizing the interface design and facilitating large-scale processing, the plug-in part 600 can be directly plugged with external electrical devices, without the need for additional flexible circuit board, which can save cost and simplify structure.

[0046] Wherein, the plurality of first wiring areas 212 are insulated from each other, the plurality of first leads 700 are insulated from each other, the second wiring area is insulated from the first wiring area 212, and the second lead 800 and the third lead 900 are insulated from the first lead 700.

[0047] In a preferred embodiment, the second wiring area is located at the edge of the second conductive layer 400, and the second lead 800 is electrically connected with the third lead 900 bypassing the first wiring area 212, in order to realize the electrical connection between the second lead 800 and the third lead 900, the second lead 800 is routed from the outside of the first wiring area 212, which can avoid the communication between the second lead 800 and the first lead 700 and the first wiring area 212, thereby avoiding short circuit, and at the same time, the outside routing allows the third lead 900 and the first lead 700 to be located on the same side, thereby changing the position of the second electrode end 910, so that the second electrode end 910 can be arranged side by side with the first electrode end 212a.

[0048] In another preferred embodiment, a through hole penetrating the second base layer 500 is provided on the second wiring area. The second lead 800 is electrically connected to the third lead 900 through the through hole. In this embodiment, unlike the above embodiments, the second lead 800 does not need to be routed from the outside of the first wiring area 212, shortening the wiring distance and making it look neater. This is suitable for situations where the third lead 900 is arranged between the first leads 700. The through hole allows the third lead 900 and the second lead 800 to be on different planes.

[0049] In this embodiment, the first lead 700, the second lead 800, and the third lead 900 are all coated with silver or copper layers. The first lead 700 can be formed by applying silver or copper paste to the first wiring area 212 (i.e., the inner side of the first conductive layer 200 facing the dimming layer 300). The second lead 800 can be formed by applying silver or copper paste to the second wiring area (i.e., the inner side of the second conductive layer 400 facing the dimming layer 300). The third lead 900 can be formed by applying silver or copper paste to the outer side of the second base layer 500. For the scheme of opening a via in the second wiring area, when applying silver paste to the second base layer 500, some silver paste will flow down along the via, thereby realizing the connection between the second lead 800 and the third lead 900.

[0050] Of course, there are multiple through holes. Silver paste is poured into multiple through holes at the same time to connect the first lead 700 and the second lead 800, thus avoiding blockage of a single through hole.

[0051] Furthermore, since the first lead 700, the second lead 800, and the third lead 900 are all exposed to the air, there is a certain safety hazard. If an operator touches them, it may cause electric shock or even a short circuit in the dimming film. Therefore, in this embodiment, the first lead 700 and the third lead 900 are covered with a first insulating protective layer 710, and the second lead 800 is covered with a second insulating protective layer 810. The first insulating protective layer 710 serves two purposes: first, to protect the first lead 700 and the third lead 900 from corrosion, and second, to isolate electricity and prevent electric shock to the operator. Similarly, the second insulating protective layer 810 also serves to protect the second lead 800 and isolate electricity.

[0052] Furthermore, the first conductive layer 200 is attached to the first base layer 100, the first wiring area 212 has the first lead 700 attached to the inner side facing the dimming layer 300 and is not covered by the second base layer 500, the second conductive layer 400 and the dimming layer 300, the second conductive layer 400 is attached to the second base layer 500, and the second wiring area has the second lead 800 attached to the inner side facing the dimming layer 300 and is not covered by the first base layer 100, the first conductive layer 200 and the dimming layer 300. Based on existing materials, since the first conductive layer 200 must be attached to the first base layer 100 and the second conductive layer 400 must be attached to the second base layer 500, the first lead 700 is usually attached to the inner side of the first wiring area 212 and the second lead 800 is attached to the inner side of the second wiring area.

[0053] Of course, in another preferred embodiment, the first lead 700 can be attached to the outer surface of the first wiring area 212, and the second lead 800 can be attached to the outer surface of the second wiring area, and can be attached both inside and outside.

[0054] Furthermore, in this embodiment, the first wiring area 212 can be formed in two ways. One way is by peeling off the second base layer 500, the second conductive layer 400 and the dimming layer 300 completely from the dimming film. That is, the first wiring area 212 is obtained by peeling off part of the second base layer 500, the second conductive layer 400 and part of the dimming layer 300. The first lead 700 can be obtained by applying silver paste or copper paste to the first wiring area 212. The other way is to form the first wiring area 212 by using a first base layer 100 with a size larger than the second base layer 500 based on the part that exceeds the second base layer 500. That is, the size of the first base layer 100 is set to be larger than the size of the second base layer 500, and the part that exceeds the size can form the first wiring area 212.

[0055] Similarly, the second wiring area can be formed in two ways in this embodiment. One way is to form it by peeling off the first base layer 100, the first conductive layer 200 and the dimming layer 300 completely from the dimming film. The other way is to form it by a second base layer 500 with a size larger than the first base layer 100 based on the portion that extends beyond the first base layer 100.

[0056] In order to make the second electrode 910 and the first electrode 212a be on the same plane, the third lead 900 is pressed. That is, the third lead 900 is processed by pressing so that the second electrode 910 and the first electrode 212a are on the same plane. After the third lead 900 is formed, it is pressed to adjust the position of the second electrode 910 so that it is not on the same plane as the other end of the third lead 900, but remains on the same plane as the first electrode 212a.

[0057] Of course, in this embodiment, since the third lead 900 is attached to the outer surface of the second base layer 500, while pressing the third lead 900, a part of the second base layer 500 will also be pressed, so that the third lead 900 always remains in contact with the outer surface of the second base layer 500.

[0058] The present invention also provides a dimming glass, including a first glass layer, a second glass layer and the dimming film described above. The dimming film is disposed between the first glass layer and the second glass layer, and can be installed on the first glass layer and the second glass layer by means of adhesive bonding.

[0059] This smart glass is transparent when powered on and opaque when powered off. It has a fast response speed, and can switch states within 1 / 10 of a second. At the same time, due to the use of a sandwich structure, even if the glass is broken by impact, the glass fragments will stick to the interlayer film and will not fly and injure people, thus ensuring high safety.

[0060] The present invention also provides a vehicle, including a vehicle body and the aforementioned dimming glass. The dimming glass is installed on the vehicle body and can be applied to parts such as the sunroof and side windows of the vehicle body. By using the aforementioned dimming glass, the vehicle can adjust the transparency of the glass area as needed, providing adjustable privacy protection and light control functions, thereby improving ride comfort and practicality.

[0061] In this embodiment, a dimming film, a dimming glass, and a vehicle are disclosed. The dimming film includes a first base layer 100, a first conductive layer 200, a dimming layer 300, a second conductive layer 400, a second base layer 500, a first lead 700, a second lead 800, and a third lead 900. The first base layer 100, the first conductive layer 200, the dimming layer 300, the second conductive layer 400, and the second base layer 500 are stacked. The first conductive layer 200 is configured to have multiple independently controllable control terminal adjustment areas 210. Each control terminal adjustment area 210 includes a first main body area 211 and a first wiring area 212. The first wiring area 212 is attached with... The device has a first lead 700 with a first electrode 212a at its tail end. The second conductive layer 400 is configured as a common terminal control area 410, including a second main body area and a second wiring area. The second wiring area is attached to the second lead 800. The third lead 900 is attached to the outer surface of the second base layer 500 and is located on the same side of the dimming film as the first lead 700. One end of the third lead 900 is connected to the second lead 800, and the other end forms a second electrode 910. The first electrode 212a and the second electrode 910 are arranged side by side to form a plug-in part 600. Under the premise of realizing independent control of multiple areas of the dimming film, the external circuit connection structure is simplified.

[0062] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A dimming film, comprising a first base layer, a first conductive layer, a dimming layer, a second conductive layer, and a second base layer sequentially stacked, characterized in that, It also includes a first lead, a second lead, and a third lead; The first conductive layer is configured to have multiple independently controllable control terminal adjustment regions, each control terminal adjustment region including a first main body region and a first trace region, and the end of the first trace region forms a first electrode terminal; Each of the first trace areas has a first lead attached to it, and the conductivity of the first lead is greater than the conductivity of the first conductive layer. The second conductive layer is configured as a common terminal control region, which includes a second main body region and a second trace region, and the second lead is attached to the second trace region; The third lead is attached to the outer surface of the second base layer and is located on the same side of the dimming film as the first lead. One end of the third lead is connected to the second lead, and the other end forms a second electrode. The conductivity of both the second lead and the third lead is greater than the conductivity of the second conductive layer. The first electrode and the second electrode are arranged side by side and converge together to form a plug-in portion for connection with an external circuit.

2. The dimming film according to claim 1, characterized in that, The first conductive layer is attached to the first base layer, and the first lead is attached to the inner side of the first trace area facing the dimming layer without being covered by the second base layer, the second conductive layer, and the dimming layer; the second conductive layer is attached to the second base layer, and the second lead is attached to the inner side of the second trace area facing the dimming layer without being covered by the first base layer, the first conductive layer, and the dimming layer.

3. A dimming film according to claim 2, characterized in that, The first trace area is formed by peeling off the second substrate, the second conductive layer, and the dimming layer from the complete dimming film, or by forming a first substrate with a size larger than the second substrate based on the portion extending beyond the second substrate; the second trace area is formed by peeling off the first substrate, the first conductive layer, and the dimming layer from the complete dimming film, or by forming a second substrate with a size larger than the first substrate based on the portion extending beyond the first substrate.

4. A dimming film according to claim 1, characterized in that, The second trace area is located at the edge of the second conductive layer, and the second lead bypasses the first trace area and is electrically connected to the third lead.

5. A dimming film according to claim 1, characterized in that, The second wiring area has a through hole that penetrates the second base layer, and the second lead wire is electrically connected to the third lead wire through the through hole.

6. A dimming film according to claim 1, characterized in that, The third lead is processed by pressing so that its second electrode and the first electrode are on the same plane.

7. A dimming film according to claim 1, characterized in that, The first lead and the third lead are further covered by a first insulating protective layer, and the second lead is further covered by a second insulating protective layer.

8. A dimming film according to claim 1, characterized in that, Multiple control terminal adjustment areas are formed by laser etching; the first lead, the second lead, and the third lead are all coated with silver or copper layers.

9. A type of dimming glass, characterized in that, include: First glass layer; Second glass layer; The dimming film according to any one of claims 1-8, wherein the dimming film is disposed between the first glass layer and the second glass layer.

10. A vehicle, characterized in that, include: Body: The dimming glass as described in claim 9 is mounted on the vehicle body.

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